Epidermal growth factor receptor/heme oxygenase-1 axis is involved in chemoresistance to cisplatin and pirarubicin in HepG2 cell lines and hepatoblastoma specimens
Purpose To investigate the possibility that the antioxidant stress protein Heme oxygenase-1 (HO-1) is involved in the acquisition of chemoresistance in cisplatin and pirarubicin (CITA) therapy. Methods Human hepatoblastoma-derived cell line (HepG2) was used to generate a knockdown cell line of HO-1...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Kobayashi, Takashi [verfasserIn] Kubota, Masayuki [verfasserIn] Kinoshita, Yoshiaki [verfasserIn] Arai, Yuki [verfasserIn] Oyama, Toshiyuki [verfasserIn] Yokota, Naoki [verfasserIn] Saito, Koichi [verfasserIn] Matsuda, Yasunobu [verfasserIn] Osawa, Mami [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2019 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Pediatric surgery international - Berlin : Springer, 1986, 35(2019), 12 vom: 26. Sept., Seite 1369-1378 |
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| Übergeordnetes Werk: |
volume:35 ; year:2019 ; number:12 ; day:26 ; month:09 ; pages:1369-1378 |
| Links: |
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| DOI / URN: |
10.1007/s00383-019-04563-5 |
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| Katalog-ID: |
SPR004732448 |
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| 100 | 1 | |a Kobayashi, Takashi |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Epidermal growth factor receptor/heme oxygenase-1 axis is involved in chemoresistance to cisplatin and pirarubicin in HepG2 cell lines and hepatoblastoma specimens |
| 264 | 1 | |c 2019 | |
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| 520 | |a Purpose To investigate the possibility that the antioxidant stress protein Heme oxygenase-1 (HO-1) is involved in the acquisition of chemoresistance in cisplatin and pirarubicin (CITA) therapy. Methods Human hepatoblastoma-derived cell line (HepG2) was used to generate a knockdown cell line of HO-1 by small interfering RNA (siRNA). Expression of HO-1, epidermal growth factor receptor (EGFR), Akt, and extracellular signal-regulated kinase1/2 (ERK1/2) was examined by Western blot. The cytotoxic effect of cisplatin, pirarubicin, and EGFR inhibitor was examined by trypan blue staining. In human hepatoblastoma specimens (n = 5), changes of HO-1 expression were examined immunohistochemically before and after CITA therapy. Results HO-1 expression in HepG2 cells was increased by the treatment of cisplatin (CDDP) and pirarubicin (THP) dose-dependently. In HO-1 knockdown HepG2 cells, the HO-1 was not expressed and the percentage of trypan blue-positive cells (dead cells) was significantly increased after treatment of CDDP and THP. The EGFR inhibitor decreased the levels of HO-1, phospho-Akt and phospho-ERK1/2 in HepG2 cells. Combination treatment of EGFR inhibitor with CDDP and THP increased the cytotoxic effect in HepG2 cells. In human hepatoblastoma specimens, 4 of the 5 patients (80%) showed HO-1 expression changed much stronger in the viable tumor cells after CITA therapy. Conclusion The cytotoxic effects of CDDP and THP were both enhanced under HO-1 knockdown conditions as well as under conditions that inhibit the activation pathway of HO-1 by EGFR inhibitors. EGFR/HO-1 axis may be involved in acquiring chemoresistance in HepG2 cell lines as well as in human hepatoblastoma. | ||
| 650 | 4 | |a Hepatoblastoma |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Cisplatin |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Pirarubicin |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Heme oxygenase-1 |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Epidermal growth factor receptor |7 (dpeaa)DE-He213 | |
| 700 | 1 | |a Kubota, Masayuki |e verfasserin |4 aut | |
| 700 | 1 | |a Kinoshita, Yoshiaki |e verfasserin |4 aut | |
| 700 | 1 | |a Arai, Yuki |e verfasserin |4 aut | |
| 700 | 1 | |a Oyama, Toshiyuki |e verfasserin |4 aut | |
| 700 | 1 | |a Yokota, Naoki |e verfasserin |4 aut | |
| 700 | 1 | |a Saito, Koichi |e verfasserin |4 aut | |
| 700 | 1 | |a Matsuda, Yasunobu |e verfasserin |4 aut | |
| 700 | 1 | |a Osawa, Mami |e verfasserin |4 aut | |
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10.1007/s00383-019-04563-5 doi (DE-627)SPR004732448 (SPR)s00383-019-04563-5-e DE-627 ger DE-627 rakwb eng 610 ASE 44.65 bkl 44.67 bkl Kobayashi, Takashi verfasserin aut Epidermal growth factor receptor/heme oxygenase-1 axis is involved in chemoresistance to cisplatin and pirarubicin in HepG2 cell lines and hepatoblastoma specimens 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Purpose To investigate the possibility that the antioxidant stress protein Heme oxygenase-1 (HO-1) is involved in the acquisition of chemoresistance in cisplatin and pirarubicin (CITA) therapy. Methods Human hepatoblastoma-derived cell line (HepG2) was used to generate a knockdown cell line of HO-1 by small interfering RNA (siRNA). Expression of HO-1, epidermal growth factor receptor (EGFR), Akt, and extracellular signal-regulated kinase1/2 (ERK1/2) was examined by Western blot. The cytotoxic effect of cisplatin, pirarubicin, and EGFR inhibitor was examined by trypan blue staining. In human hepatoblastoma specimens (n = 5), changes of HO-1 expression were examined immunohistochemically before and after CITA therapy. Results HO-1 expression in HepG2 cells was increased by the treatment of cisplatin (CDDP) and pirarubicin (THP) dose-dependently. In HO-1 knockdown HepG2 cells, the HO-1 was not expressed and the percentage of trypan blue-positive cells (dead cells) was significantly increased after treatment of CDDP and THP. The EGFR inhibitor decreased the levels of HO-1, phospho-Akt and phospho-ERK1/2 in HepG2 cells. Combination treatment of EGFR inhibitor with CDDP and THP increased the cytotoxic effect in HepG2 cells. In human hepatoblastoma specimens, 4 of the 5 patients (80%) showed HO-1 expression changed much stronger in the viable tumor cells after CITA therapy. Conclusion The cytotoxic effects of CDDP and THP were both enhanced under HO-1 knockdown conditions as well as under conditions that inhibit the activation pathway of HO-1 by EGFR inhibitors. EGFR/HO-1 axis may be involved in acquiring chemoresistance in HepG2 cell lines as well as in human hepatoblastoma. Hepatoblastoma (dpeaa)DE-He213 Cisplatin (dpeaa)DE-He213 Pirarubicin (dpeaa)DE-He213 Heme oxygenase-1 (dpeaa)DE-He213 Epidermal growth factor receptor (dpeaa)DE-He213 Kubota, Masayuki verfasserin aut Kinoshita, Yoshiaki verfasserin aut Arai, Yuki verfasserin aut Oyama, Toshiyuki verfasserin aut Yokota, Naoki verfasserin aut Saito, Koichi verfasserin aut Matsuda, Yasunobu verfasserin aut Osawa, Mami verfasserin aut Enthalten in Pediatric surgery international Berlin : Springer, 1986 35(2019), 12 vom: 26. Sept., Seite 1369-1378 (DE-627)254638937 (DE-600)1463010-2 1437-9813 nnns volume:35 year:2019 number:12 day:26 month:09 pages:1369-1378 https://dx.doi.org/10.1007/s00383-019-04563-5 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_711 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 44.65 ASE 44.67 ASE AR 35 2019 12 26 09 1369-1378 |
| spelling |
10.1007/s00383-019-04563-5 doi (DE-627)SPR004732448 (SPR)s00383-019-04563-5-e DE-627 ger DE-627 rakwb eng 610 ASE 44.65 bkl 44.67 bkl Kobayashi, Takashi verfasserin aut Epidermal growth factor receptor/heme oxygenase-1 axis is involved in chemoresistance to cisplatin and pirarubicin in HepG2 cell lines and hepatoblastoma specimens 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Purpose To investigate the possibility that the antioxidant stress protein Heme oxygenase-1 (HO-1) is involved in the acquisition of chemoresistance in cisplatin and pirarubicin (CITA) therapy. Methods Human hepatoblastoma-derived cell line (HepG2) was used to generate a knockdown cell line of HO-1 by small interfering RNA (siRNA). Expression of HO-1, epidermal growth factor receptor (EGFR), Akt, and extracellular signal-regulated kinase1/2 (ERK1/2) was examined by Western blot. The cytotoxic effect of cisplatin, pirarubicin, and EGFR inhibitor was examined by trypan blue staining. In human hepatoblastoma specimens (n = 5), changes of HO-1 expression were examined immunohistochemically before and after CITA therapy. Results HO-1 expression in HepG2 cells was increased by the treatment of cisplatin (CDDP) and pirarubicin (THP) dose-dependently. In HO-1 knockdown HepG2 cells, the HO-1 was not expressed and the percentage of trypan blue-positive cells (dead cells) was significantly increased after treatment of CDDP and THP. The EGFR inhibitor decreased the levels of HO-1, phospho-Akt and phospho-ERK1/2 in HepG2 cells. Combination treatment of EGFR inhibitor with CDDP and THP increased the cytotoxic effect in HepG2 cells. In human hepatoblastoma specimens, 4 of the 5 patients (80%) showed HO-1 expression changed much stronger in the viable tumor cells after CITA therapy. Conclusion The cytotoxic effects of CDDP and THP were both enhanced under HO-1 knockdown conditions as well as under conditions that inhibit the activation pathway of HO-1 by EGFR inhibitors. EGFR/HO-1 axis may be involved in acquiring chemoresistance in HepG2 cell lines as well as in human hepatoblastoma. Hepatoblastoma (dpeaa)DE-He213 Cisplatin (dpeaa)DE-He213 Pirarubicin (dpeaa)DE-He213 Heme oxygenase-1 (dpeaa)DE-He213 Epidermal growth factor receptor (dpeaa)DE-He213 Kubota, Masayuki verfasserin aut Kinoshita, Yoshiaki verfasserin aut Arai, Yuki verfasserin aut Oyama, Toshiyuki verfasserin aut Yokota, Naoki verfasserin aut Saito, Koichi verfasserin aut Matsuda, Yasunobu verfasserin aut Osawa, Mami verfasserin aut Enthalten in Pediatric surgery international Berlin : Springer, 1986 35(2019), 12 vom: 26. Sept., Seite 1369-1378 (DE-627)254638937 (DE-600)1463010-2 1437-9813 nnns volume:35 year:2019 number:12 day:26 month:09 pages:1369-1378 https://dx.doi.org/10.1007/s00383-019-04563-5 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_711 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 44.65 ASE 44.67 ASE AR 35 2019 12 26 09 1369-1378 |
| allfields_unstemmed |
10.1007/s00383-019-04563-5 doi (DE-627)SPR004732448 (SPR)s00383-019-04563-5-e DE-627 ger DE-627 rakwb eng 610 ASE 44.65 bkl 44.67 bkl Kobayashi, Takashi verfasserin aut Epidermal growth factor receptor/heme oxygenase-1 axis is involved in chemoresistance to cisplatin and pirarubicin in HepG2 cell lines and hepatoblastoma specimens 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Purpose To investigate the possibility that the antioxidant stress protein Heme oxygenase-1 (HO-1) is involved in the acquisition of chemoresistance in cisplatin and pirarubicin (CITA) therapy. Methods Human hepatoblastoma-derived cell line (HepG2) was used to generate a knockdown cell line of HO-1 by small interfering RNA (siRNA). Expression of HO-1, epidermal growth factor receptor (EGFR), Akt, and extracellular signal-regulated kinase1/2 (ERK1/2) was examined by Western blot. The cytotoxic effect of cisplatin, pirarubicin, and EGFR inhibitor was examined by trypan blue staining. In human hepatoblastoma specimens (n = 5), changes of HO-1 expression were examined immunohistochemically before and after CITA therapy. Results HO-1 expression in HepG2 cells was increased by the treatment of cisplatin (CDDP) and pirarubicin (THP) dose-dependently. In HO-1 knockdown HepG2 cells, the HO-1 was not expressed and the percentage of trypan blue-positive cells (dead cells) was significantly increased after treatment of CDDP and THP. The EGFR inhibitor decreased the levels of HO-1, phospho-Akt and phospho-ERK1/2 in HepG2 cells. Combination treatment of EGFR inhibitor with CDDP and THP increased the cytotoxic effect in HepG2 cells. In human hepatoblastoma specimens, 4 of the 5 patients (80%) showed HO-1 expression changed much stronger in the viable tumor cells after CITA therapy. Conclusion The cytotoxic effects of CDDP and THP were both enhanced under HO-1 knockdown conditions as well as under conditions that inhibit the activation pathway of HO-1 by EGFR inhibitors. EGFR/HO-1 axis may be involved in acquiring chemoresistance in HepG2 cell lines as well as in human hepatoblastoma. Hepatoblastoma (dpeaa)DE-He213 Cisplatin (dpeaa)DE-He213 Pirarubicin (dpeaa)DE-He213 Heme oxygenase-1 (dpeaa)DE-He213 Epidermal growth factor receptor (dpeaa)DE-He213 Kubota, Masayuki verfasserin aut Kinoshita, Yoshiaki verfasserin aut Arai, Yuki verfasserin aut Oyama, Toshiyuki verfasserin aut Yokota, Naoki verfasserin aut Saito, Koichi verfasserin aut Matsuda, Yasunobu verfasserin aut Osawa, Mami verfasserin aut Enthalten in Pediatric surgery international Berlin : Springer, 1986 35(2019), 12 vom: 26. Sept., Seite 1369-1378 (DE-627)254638937 (DE-600)1463010-2 1437-9813 nnns volume:35 year:2019 number:12 day:26 month:09 pages:1369-1378 https://dx.doi.org/10.1007/s00383-019-04563-5 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_711 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 44.65 ASE 44.67 ASE AR 35 2019 12 26 09 1369-1378 |
| allfieldsGer |
10.1007/s00383-019-04563-5 doi (DE-627)SPR004732448 (SPR)s00383-019-04563-5-e DE-627 ger DE-627 rakwb eng 610 ASE 44.65 bkl 44.67 bkl Kobayashi, Takashi verfasserin aut Epidermal growth factor receptor/heme oxygenase-1 axis is involved in chemoresistance to cisplatin and pirarubicin in HepG2 cell lines and hepatoblastoma specimens 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Purpose To investigate the possibility that the antioxidant stress protein Heme oxygenase-1 (HO-1) is involved in the acquisition of chemoresistance in cisplatin and pirarubicin (CITA) therapy. Methods Human hepatoblastoma-derived cell line (HepG2) was used to generate a knockdown cell line of HO-1 by small interfering RNA (siRNA). Expression of HO-1, epidermal growth factor receptor (EGFR), Akt, and extracellular signal-regulated kinase1/2 (ERK1/2) was examined by Western blot. The cytotoxic effect of cisplatin, pirarubicin, and EGFR inhibitor was examined by trypan blue staining. In human hepatoblastoma specimens (n = 5), changes of HO-1 expression were examined immunohistochemically before and after CITA therapy. Results HO-1 expression in HepG2 cells was increased by the treatment of cisplatin (CDDP) and pirarubicin (THP) dose-dependently. In HO-1 knockdown HepG2 cells, the HO-1 was not expressed and the percentage of trypan blue-positive cells (dead cells) was significantly increased after treatment of CDDP and THP. The EGFR inhibitor decreased the levels of HO-1, phospho-Akt and phospho-ERK1/2 in HepG2 cells. Combination treatment of EGFR inhibitor with CDDP and THP increased the cytotoxic effect in HepG2 cells. In human hepatoblastoma specimens, 4 of the 5 patients (80%) showed HO-1 expression changed much stronger in the viable tumor cells after CITA therapy. Conclusion The cytotoxic effects of CDDP and THP were both enhanced under HO-1 knockdown conditions as well as under conditions that inhibit the activation pathway of HO-1 by EGFR inhibitors. EGFR/HO-1 axis may be involved in acquiring chemoresistance in HepG2 cell lines as well as in human hepatoblastoma. Hepatoblastoma (dpeaa)DE-He213 Cisplatin (dpeaa)DE-He213 Pirarubicin (dpeaa)DE-He213 Heme oxygenase-1 (dpeaa)DE-He213 Epidermal growth factor receptor (dpeaa)DE-He213 Kubota, Masayuki verfasserin aut Kinoshita, Yoshiaki verfasserin aut Arai, Yuki verfasserin aut Oyama, Toshiyuki verfasserin aut Yokota, Naoki verfasserin aut Saito, Koichi verfasserin aut Matsuda, Yasunobu verfasserin aut Osawa, Mami verfasserin aut Enthalten in Pediatric surgery international Berlin : Springer, 1986 35(2019), 12 vom: 26. Sept., Seite 1369-1378 (DE-627)254638937 (DE-600)1463010-2 1437-9813 nnns volume:35 year:2019 number:12 day:26 month:09 pages:1369-1378 https://dx.doi.org/10.1007/s00383-019-04563-5 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_711 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 44.65 ASE 44.67 ASE AR 35 2019 12 26 09 1369-1378 |
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10.1007/s00383-019-04563-5 doi (DE-627)SPR004732448 (SPR)s00383-019-04563-5-e DE-627 ger DE-627 rakwb eng 610 ASE 44.65 bkl 44.67 bkl Kobayashi, Takashi verfasserin aut Epidermal growth factor receptor/heme oxygenase-1 axis is involved in chemoresistance to cisplatin and pirarubicin in HepG2 cell lines and hepatoblastoma specimens 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Purpose To investigate the possibility that the antioxidant stress protein Heme oxygenase-1 (HO-1) is involved in the acquisition of chemoresistance in cisplatin and pirarubicin (CITA) therapy. Methods Human hepatoblastoma-derived cell line (HepG2) was used to generate a knockdown cell line of HO-1 by small interfering RNA (siRNA). Expression of HO-1, epidermal growth factor receptor (EGFR), Akt, and extracellular signal-regulated kinase1/2 (ERK1/2) was examined by Western blot. The cytotoxic effect of cisplatin, pirarubicin, and EGFR inhibitor was examined by trypan blue staining. In human hepatoblastoma specimens (n = 5), changes of HO-1 expression were examined immunohistochemically before and after CITA therapy. Results HO-1 expression in HepG2 cells was increased by the treatment of cisplatin (CDDP) and pirarubicin (THP) dose-dependently. In HO-1 knockdown HepG2 cells, the HO-1 was not expressed and the percentage of trypan blue-positive cells (dead cells) was significantly increased after treatment of CDDP and THP. The EGFR inhibitor decreased the levels of HO-1, phospho-Akt and phospho-ERK1/2 in HepG2 cells. Combination treatment of EGFR inhibitor with CDDP and THP increased the cytotoxic effect in HepG2 cells. In human hepatoblastoma specimens, 4 of the 5 patients (80%) showed HO-1 expression changed much stronger in the viable tumor cells after CITA therapy. Conclusion The cytotoxic effects of CDDP and THP were both enhanced under HO-1 knockdown conditions as well as under conditions that inhibit the activation pathway of HO-1 by EGFR inhibitors. EGFR/HO-1 axis may be involved in acquiring chemoresistance in HepG2 cell lines as well as in human hepatoblastoma. Hepatoblastoma (dpeaa)DE-He213 Cisplatin (dpeaa)DE-He213 Pirarubicin (dpeaa)DE-He213 Heme oxygenase-1 (dpeaa)DE-He213 Epidermal growth factor receptor (dpeaa)DE-He213 Kubota, Masayuki verfasserin aut Kinoshita, Yoshiaki verfasserin aut Arai, Yuki verfasserin aut Oyama, Toshiyuki verfasserin aut Yokota, Naoki verfasserin aut Saito, Koichi verfasserin aut Matsuda, Yasunobu verfasserin aut Osawa, Mami verfasserin aut Enthalten in Pediatric surgery international Berlin : Springer, 1986 35(2019), 12 vom: 26. Sept., Seite 1369-1378 (DE-627)254638937 (DE-600)1463010-2 1437-9813 nnns volume:35 year:2019 number:12 day:26 month:09 pages:1369-1378 https://dx.doi.org/10.1007/s00383-019-04563-5 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_711 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 44.65 ASE 44.67 ASE AR 35 2019 12 26 09 1369-1378 |
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Enthalten in Pediatric surgery international 35(2019), 12 vom: 26. Sept., Seite 1369-1378 volume:35 year:2019 number:12 day:26 month:09 pages:1369-1378 |
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Kobayashi, Takashi @@aut@@ Kubota, Masayuki @@aut@@ Kinoshita, Yoshiaki @@aut@@ Arai, Yuki @@aut@@ Oyama, Toshiyuki @@aut@@ Yokota, Naoki @@aut@@ Saito, Koichi @@aut@@ Matsuda, Yasunobu @@aut@@ Osawa, Mami @@aut@@ |
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Kobayashi, Takashi |
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Kobayashi, Takashi ddc 610 bkl 44.65 bkl 44.67 misc Hepatoblastoma misc Cisplatin misc Pirarubicin misc Heme oxygenase-1 misc Epidermal growth factor receptor Epidermal growth factor receptor/heme oxygenase-1 axis is involved in chemoresistance to cisplatin and pirarubicin in HepG2 cell lines and hepatoblastoma specimens |
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610 ASE 44.65 bkl 44.67 bkl Epidermal growth factor receptor/heme oxygenase-1 axis is involved in chemoresistance to cisplatin and pirarubicin in HepG2 cell lines and hepatoblastoma specimens Hepatoblastoma (dpeaa)DE-He213 Cisplatin (dpeaa)DE-He213 Pirarubicin (dpeaa)DE-He213 Heme oxygenase-1 (dpeaa)DE-He213 Epidermal growth factor receptor (dpeaa)DE-He213 |
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ddc 610 bkl 44.65 bkl 44.67 misc Hepatoblastoma misc Cisplatin misc Pirarubicin misc Heme oxygenase-1 misc Epidermal growth factor receptor |
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ddc 610 bkl 44.65 bkl 44.67 misc Hepatoblastoma misc Cisplatin misc Pirarubicin misc Heme oxygenase-1 misc Epidermal growth factor receptor |
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Epidermal growth factor receptor/heme oxygenase-1 axis is involved in chemoresistance to cisplatin and pirarubicin in HepG2 cell lines and hepatoblastoma specimens |
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Epidermal growth factor receptor/heme oxygenase-1 axis is involved in chemoresistance to cisplatin and pirarubicin in HepG2 cell lines and hepatoblastoma specimens |
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Kobayashi, Takashi |
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Pediatric surgery international |
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Kobayashi, Takashi Kubota, Masayuki Kinoshita, Yoshiaki Arai, Yuki Oyama, Toshiyuki Yokota, Naoki Saito, Koichi Matsuda, Yasunobu Osawa, Mami |
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epidermal growth factor receptor/heme oxygenase-1 axis is involved in chemoresistance to cisplatin and pirarubicin in hepg2 cell lines and hepatoblastoma specimens |
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Epidermal growth factor receptor/heme oxygenase-1 axis is involved in chemoresistance to cisplatin and pirarubicin in HepG2 cell lines and hepatoblastoma specimens |
| abstract |
Purpose To investigate the possibility that the antioxidant stress protein Heme oxygenase-1 (HO-1) is involved in the acquisition of chemoresistance in cisplatin and pirarubicin (CITA) therapy. Methods Human hepatoblastoma-derived cell line (HepG2) was used to generate a knockdown cell line of HO-1 by small interfering RNA (siRNA). Expression of HO-1, epidermal growth factor receptor (EGFR), Akt, and extracellular signal-regulated kinase1/2 (ERK1/2) was examined by Western blot. The cytotoxic effect of cisplatin, pirarubicin, and EGFR inhibitor was examined by trypan blue staining. In human hepatoblastoma specimens (n = 5), changes of HO-1 expression were examined immunohistochemically before and after CITA therapy. Results HO-1 expression in HepG2 cells was increased by the treatment of cisplatin (CDDP) and pirarubicin (THP) dose-dependently. In HO-1 knockdown HepG2 cells, the HO-1 was not expressed and the percentage of trypan blue-positive cells (dead cells) was significantly increased after treatment of CDDP and THP. The EGFR inhibitor decreased the levels of HO-1, phospho-Akt and phospho-ERK1/2 in HepG2 cells. Combination treatment of EGFR inhibitor with CDDP and THP increased the cytotoxic effect in HepG2 cells. In human hepatoblastoma specimens, 4 of the 5 patients (80%) showed HO-1 expression changed much stronger in the viable tumor cells after CITA therapy. Conclusion The cytotoxic effects of CDDP and THP were both enhanced under HO-1 knockdown conditions as well as under conditions that inhibit the activation pathway of HO-1 by EGFR inhibitors. EGFR/HO-1 axis may be involved in acquiring chemoresistance in HepG2 cell lines as well as in human hepatoblastoma. |
| abstractGer |
Purpose To investigate the possibility that the antioxidant stress protein Heme oxygenase-1 (HO-1) is involved in the acquisition of chemoresistance in cisplatin and pirarubicin (CITA) therapy. Methods Human hepatoblastoma-derived cell line (HepG2) was used to generate a knockdown cell line of HO-1 by small interfering RNA (siRNA). Expression of HO-1, epidermal growth factor receptor (EGFR), Akt, and extracellular signal-regulated kinase1/2 (ERK1/2) was examined by Western blot. The cytotoxic effect of cisplatin, pirarubicin, and EGFR inhibitor was examined by trypan blue staining. In human hepatoblastoma specimens (n = 5), changes of HO-1 expression were examined immunohistochemically before and after CITA therapy. Results HO-1 expression in HepG2 cells was increased by the treatment of cisplatin (CDDP) and pirarubicin (THP) dose-dependently. In HO-1 knockdown HepG2 cells, the HO-1 was not expressed and the percentage of trypan blue-positive cells (dead cells) was significantly increased after treatment of CDDP and THP. The EGFR inhibitor decreased the levels of HO-1, phospho-Akt and phospho-ERK1/2 in HepG2 cells. Combination treatment of EGFR inhibitor with CDDP and THP increased the cytotoxic effect in HepG2 cells. In human hepatoblastoma specimens, 4 of the 5 patients (80%) showed HO-1 expression changed much stronger in the viable tumor cells after CITA therapy. Conclusion The cytotoxic effects of CDDP and THP were both enhanced under HO-1 knockdown conditions as well as under conditions that inhibit the activation pathway of HO-1 by EGFR inhibitors. EGFR/HO-1 axis may be involved in acquiring chemoresistance in HepG2 cell lines as well as in human hepatoblastoma. |
| abstract_unstemmed |
Purpose To investigate the possibility that the antioxidant stress protein Heme oxygenase-1 (HO-1) is involved in the acquisition of chemoresistance in cisplatin and pirarubicin (CITA) therapy. Methods Human hepatoblastoma-derived cell line (HepG2) was used to generate a knockdown cell line of HO-1 by small interfering RNA (siRNA). Expression of HO-1, epidermal growth factor receptor (EGFR), Akt, and extracellular signal-regulated kinase1/2 (ERK1/2) was examined by Western blot. The cytotoxic effect of cisplatin, pirarubicin, and EGFR inhibitor was examined by trypan blue staining. In human hepatoblastoma specimens (n = 5), changes of HO-1 expression were examined immunohistochemically before and after CITA therapy. Results HO-1 expression in HepG2 cells was increased by the treatment of cisplatin (CDDP) and pirarubicin (THP) dose-dependently. In HO-1 knockdown HepG2 cells, the HO-1 was not expressed and the percentage of trypan blue-positive cells (dead cells) was significantly increased after treatment of CDDP and THP. The EGFR inhibitor decreased the levels of HO-1, phospho-Akt and phospho-ERK1/2 in HepG2 cells. Combination treatment of EGFR inhibitor with CDDP and THP increased the cytotoxic effect in HepG2 cells. In human hepatoblastoma specimens, 4 of the 5 patients (80%) showed HO-1 expression changed much stronger in the viable tumor cells after CITA therapy. Conclusion The cytotoxic effects of CDDP and THP were both enhanced under HO-1 knockdown conditions as well as under conditions that inhibit the activation pathway of HO-1 by EGFR inhibitors. EGFR/HO-1 axis may be involved in acquiring chemoresistance in HepG2 cell lines as well as in human hepatoblastoma. |
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Epidermal growth factor receptor/heme oxygenase-1 axis is involved in chemoresistance to cisplatin and pirarubicin in HepG2 cell lines and hepatoblastoma specimens |
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<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">SPR004732448</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230519090152.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">201001s2019 xx |||||o 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1007/s00383-019-04563-5</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)SPR004732448</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(SPR)s00383-019-04563-5-e</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">610</subfield><subfield code="q">ASE</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">44.65</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">44.67</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Kobayashi, Takashi</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Epidermal growth factor receptor/heme oxygenase-1 axis is involved in chemoresistance to cisplatin and pirarubicin in HepG2 cell lines and hepatoblastoma specimens</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2019</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Purpose To investigate the possibility that the antioxidant stress protein Heme oxygenase-1 (HO-1) is involved in the acquisition of chemoresistance in cisplatin and pirarubicin (CITA) therapy. Methods Human hepatoblastoma-derived cell line (HepG2) was used to generate a knockdown cell line of HO-1 by small interfering RNA (siRNA). Expression of HO-1, epidermal growth factor receptor (EGFR), Akt, and extracellular signal-regulated kinase1/2 (ERK1/2) was examined by Western blot. The cytotoxic effect of cisplatin, pirarubicin, and EGFR inhibitor was examined by trypan blue staining. In human hepatoblastoma specimens (n = 5), changes of HO-1 expression were examined immunohistochemically before and after CITA therapy. Results HO-1 expression in HepG2 cells was increased by the treatment of cisplatin (CDDP) and pirarubicin (THP) dose-dependently. In HO-1 knockdown HepG2 cells, the HO-1 was not expressed and the percentage of trypan blue-positive cells (dead cells) was significantly increased after treatment of CDDP and THP. The EGFR inhibitor decreased the levels of HO-1, phospho-Akt and phospho-ERK1/2 in HepG2 cells. Combination treatment of EGFR inhibitor with CDDP and THP increased the cytotoxic effect in HepG2 cells. In human hepatoblastoma specimens, 4 of the 5 patients (80%) showed HO-1 expression changed much stronger in the viable tumor cells after CITA therapy. Conclusion The cytotoxic effects of CDDP and THP were both enhanced under HO-1 knockdown conditions as well as under conditions that inhibit the activation pathway of HO-1 by EGFR inhibitors. 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