Smad7 and protein phosphatase 1α are critical determinants in the duration of TGF-β/ALK1 signaling in endothelial cells
Background In endothelial cells (EC), transforming growth factor-β (TGF-β) can bind to and transduce signals through ALK1 and ALK5. The TGF-β/ALK5 and TGF-β/ALK1 pathways have opposite effects on EC behaviour. Besides differential receptor binding, the duration of TGF-β signaling is an important spe...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Valdimarsdottir, Gudrun [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2006 |
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| Schlagwörter: |
Reverse Transcription Polymerase Chain Reaction |
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| Anmerkung: |
© Valdimarsdottir et al; licensee BioMed Central Ltd. 2006. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( |
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| Übergeordnetes Werk: |
Enthalten in: BMC cell biology - London : BioMed Central, 2000, 7(2006), 1 vom: 29. März |
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| Übergeordnetes Werk: |
volume:7 ; year:2006 ; number:1 ; day:29 ; month:03 |
| Links: |
|---|
| DOI / URN: |
10.1186/1471-2121-7-16 |
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| Katalog-ID: |
SPR026932571 |
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| 100 | 1 | |a Valdimarsdottir, Gudrun |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Smad7 and protein phosphatase 1α are critical determinants in the duration of TGF-β/ALK1 signaling in endothelial cells |
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| 520 | |a Background In endothelial cells (EC), transforming growth factor-β (TGF-β) can bind to and transduce signals through ALK1 and ALK5. The TGF-β/ALK5 and TGF-β/ALK1 pathways have opposite effects on EC behaviour. Besides differential receptor binding, the duration of TGF-β signaling is an important specificity determinant for signaling responses. TGF-β/ALK1-induced Smad1/5 phosphorylation in ECs occurs transiently. Results The temporal activation of TGF-β-induced Smad1/5 phosphorylation in ECs was found to be affected by de novo protein synthesis, and ALK1 and Smad5 expression levels determined signal strength of TGF-β/ALK1 signaling pathway. Smad7 and protein phosphatase 1α (PP1α) mRNA expression levels were found to be specifically upregulated by TGF-β/ALK1. Ectopic expression of Smad7 or PP1α potently inhibited TGF-β/ALK1-induced Smad1/5 phosphorylation in ECs. Conversely, siRNA-mediated knockdown of Smad7 or PP1α enhanced TGF-β/ALK1-induced signaling responses. PP1α interacted with ALK1 and this association was further potentiated by Smad7. Dephosphorylation of the ALK1, immunoprecipitated from cell lysates, was attenuated by a specific PP1 inhibitor. Conclusion Our results suggest that upon its induction by the TGF-β/ALK1 pathway, Smad7 may recruit PP1α to ALK1, and thereby control TGF-β/ALK1-induced Smad1/5 phosphorylation. | ||
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| 650 | 4 | |a ALK1 Signaling |7 (dpeaa)DE-He213 | |
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| 700 | 1 | |a Goumans, Marie-José |4 aut | |
| 700 | 1 | |a Itoh, Fumiko |4 aut | |
| 700 | 1 | |a Itoh, Susumu |4 aut | |
| 700 | 1 | |a Heldin, Carl-Henrik |4 aut | |
| 700 | 1 | |a Dijke, Peter ten |4 aut | |
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10.1186/1471-2121-7-16 doi (DE-627)SPR026932571 (SPR)1471-2121-7-16-e DE-627 ger DE-627 rakwb eng Valdimarsdottir, Gudrun verfasserin aut Smad7 and protein phosphatase 1α are critical determinants in the duration of TGF-β/ALK1 signaling in endothelial cells 2006 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Valdimarsdottir et al; licensee BioMed Central Ltd. 2006. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( Background In endothelial cells (EC), transforming growth factor-β (TGF-β) can bind to and transduce signals through ALK1 and ALK5. The TGF-β/ALK5 and TGF-β/ALK1 pathways have opposite effects on EC behaviour. Besides differential receptor binding, the duration of TGF-β signaling is an important specificity determinant for signaling responses. TGF-β/ALK1-induced Smad1/5 phosphorylation in ECs occurs transiently. Results The temporal activation of TGF-β-induced Smad1/5 phosphorylation in ECs was found to be affected by de novo protein synthesis, and ALK1 and Smad5 expression levels determined signal strength of TGF-β/ALK1 signaling pathway. Smad7 and protein phosphatase 1α (PP1α) mRNA expression levels were found to be specifically upregulated by TGF-β/ALK1. Ectopic expression of Smad7 or PP1α potently inhibited TGF-β/ALK1-induced Smad1/5 phosphorylation in ECs. Conversely, siRNA-mediated knockdown of Smad7 or PP1α enhanced TGF-β/ALK1-induced signaling responses. PP1α interacted with ALK1 and this association was further potentiated by Smad7. Dephosphorylation of the ALK1, immunoprecipitated from cell lysates, was attenuated by a specific PP1 inhibitor. Conclusion Our results suggest that upon its induction by the TGF-β/ALK1 pathway, Smad7 may recruit PP1α to ALK1, and thereby control TGF-β/ALK1-induced Smad1/5 phosphorylation. Reverse Transcription Polymerase Chain Reaction (dpeaa)DE-He213 Smad2 Phosphorylation (dpeaa)DE-He213 Reverse Transcription Polymerase Chain Reaction Reaction (dpeaa)DE-He213 ALK1 Signaling (dpeaa)DE-He213 ALK1 Pathway (dpeaa)DE-He213 Goumans, Marie-José aut Itoh, Fumiko aut Itoh, Susumu aut Heldin, Carl-Henrik aut Dijke, Peter ten aut Enthalten in BMC cell biology London : BioMed Central, 2000 7(2006), 1 vom: 29. März (DE-627)326644830 (DE-600)2041486-9 1471-2121 nnns volume:7 year:2006 number:1 day:29 month:03 https://dx.doi.org/10.1186/1471-2121-7-16 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 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_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4338 GBV_ILN_4367 GBV_ILN_4700 AR 7 2006 1 29 03 |
| spelling |
10.1186/1471-2121-7-16 doi (DE-627)SPR026932571 (SPR)1471-2121-7-16-e DE-627 ger DE-627 rakwb eng Valdimarsdottir, Gudrun verfasserin aut Smad7 and protein phosphatase 1α are critical determinants in the duration of TGF-β/ALK1 signaling in endothelial cells 2006 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Valdimarsdottir et al; licensee BioMed Central Ltd. 2006. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( Background In endothelial cells (EC), transforming growth factor-β (TGF-β) can bind to and transduce signals through ALK1 and ALK5. The TGF-β/ALK5 and TGF-β/ALK1 pathways have opposite effects on EC behaviour. Besides differential receptor binding, the duration of TGF-β signaling is an important specificity determinant for signaling responses. TGF-β/ALK1-induced Smad1/5 phosphorylation in ECs occurs transiently. Results The temporal activation of TGF-β-induced Smad1/5 phosphorylation in ECs was found to be affected by de novo protein synthesis, and ALK1 and Smad5 expression levels determined signal strength of TGF-β/ALK1 signaling pathway. Smad7 and protein phosphatase 1α (PP1α) mRNA expression levels were found to be specifically upregulated by TGF-β/ALK1. Ectopic expression of Smad7 or PP1α potently inhibited TGF-β/ALK1-induced Smad1/5 phosphorylation in ECs. Conversely, siRNA-mediated knockdown of Smad7 or PP1α enhanced TGF-β/ALK1-induced signaling responses. PP1α interacted with ALK1 and this association was further potentiated by Smad7. Dephosphorylation of the ALK1, immunoprecipitated from cell lysates, was attenuated by a specific PP1 inhibitor. Conclusion Our results suggest that upon its induction by the TGF-β/ALK1 pathway, Smad7 may recruit PP1α to ALK1, and thereby control TGF-β/ALK1-induced Smad1/5 phosphorylation. Reverse Transcription Polymerase Chain Reaction (dpeaa)DE-He213 Smad2 Phosphorylation (dpeaa)DE-He213 Reverse Transcription Polymerase Chain Reaction Reaction (dpeaa)DE-He213 ALK1 Signaling (dpeaa)DE-He213 ALK1 Pathway (dpeaa)DE-He213 Goumans, Marie-José aut Itoh, Fumiko aut Itoh, Susumu aut Heldin, Carl-Henrik aut Dijke, Peter ten aut Enthalten in BMC cell biology London : BioMed Central, 2000 7(2006), 1 vom: 29. März (DE-627)326644830 (DE-600)2041486-9 1471-2121 nnns volume:7 year:2006 number:1 day:29 month:03 https://dx.doi.org/10.1186/1471-2121-7-16 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 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_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4338 GBV_ILN_4367 GBV_ILN_4700 AR 7 2006 1 29 03 |
| allfields_unstemmed |
10.1186/1471-2121-7-16 doi (DE-627)SPR026932571 (SPR)1471-2121-7-16-e DE-627 ger DE-627 rakwb eng Valdimarsdottir, Gudrun verfasserin aut Smad7 and protein phosphatase 1α are critical determinants in the duration of TGF-β/ALK1 signaling in endothelial cells 2006 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Valdimarsdottir et al; licensee BioMed Central Ltd. 2006. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( Background In endothelial cells (EC), transforming growth factor-β (TGF-β) can bind to and transduce signals through ALK1 and ALK5. The TGF-β/ALK5 and TGF-β/ALK1 pathways have opposite effects on EC behaviour. Besides differential receptor binding, the duration of TGF-β signaling is an important specificity determinant for signaling responses. TGF-β/ALK1-induced Smad1/5 phosphorylation in ECs occurs transiently. Results The temporal activation of TGF-β-induced Smad1/5 phosphorylation in ECs was found to be affected by de novo protein synthesis, and ALK1 and Smad5 expression levels determined signal strength of TGF-β/ALK1 signaling pathway. Smad7 and protein phosphatase 1α (PP1α) mRNA expression levels were found to be specifically upregulated by TGF-β/ALK1. Ectopic expression of Smad7 or PP1α potently inhibited TGF-β/ALK1-induced Smad1/5 phosphorylation in ECs. Conversely, siRNA-mediated knockdown of Smad7 or PP1α enhanced TGF-β/ALK1-induced signaling responses. PP1α interacted with ALK1 and this association was further potentiated by Smad7. Dephosphorylation of the ALK1, immunoprecipitated from cell lysates, was attenuated by a specific PP1 inhibitor. Conclusion Our results suggest that upon its induction by the TGF-β/ALK1 pathway, Smad7 may recruit PP1α to ALK1, and thereby control TGF-β/ALK1-induced Smad1/5 phosphorylation. Reverse Transcription Polymerase Chain Reaction (dpeaa)DE-He213 Smad2 Phosphorylation (dpeaa)DE-He213 Reverse Transcription Polymerase Chain Reaction Reaction (dpeaa)DE-He213 ALK1 Signaling (dpeaa)DE-He213 ALK1 Pathway (dpeaa)DE-He213 Goumans, Marie-José aut Itoh, Fumiko aut Itoh, Susumu aut Heldin, Carl-Henrik aut Dijke, Peter ten aut Enthalten in BMC cell biology London : BioMed Central, 2000 7(2006), 1 vom: 29. März (DE-627)326644830 (DE-600)2041486-9 1471-2121 nnns volume:7 year:2006 number:1 day:29 month:03 https://dx.doi.org/10.1186/1471-2121-7-16 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 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_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4338 GBV_ILN_4367 GBV_ILN_4700 AR 7 2006 1 29 03 |
| allfieldsGer |
10.1186/1471-2121-7-16 doi (DE-627)SPR026932571 (SPR)1471-2121-7-16-e DE-627 ger DE-627 rakwb eng Valdimarsdottir, Gudrun verfasserin aut Smad7 and protein phosphatase 1α are critical determinants in the duration of TGF-β/ALK1 signaling in endothelial cells 2006 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Valdimarsdottir et al; licensee BioMed Central Ltd. 2006. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( Background In endothelial cells (EC), transforming growth factor-β (TGF-β) can bind to and transduce signals through ALK1 and ALK5. The TGF-β/ALK5 and TGF-β/ALK1 pathways have opposite effects on EC behaviour. Besides differential receptor binding, the duration of TGF-β signaling is an important specificity determinant for signaling responses. TGF-β/ALK1-induced Smad1/5 phosphorylation in ECs occurs transiently. Results The temporal activation of TGF-β-induced Smad1/5 phosphorylation in ECs was found to be affected by de novo protein synthesis, and ALK1 and Smad5 expression levels determined signal strength of TGF-β/ALK1 signaling pathway. Smad7 and protein phosphatase 1α (PP1α) mRNA expression levels were found to be specifically upregulated by TGF-β/ALK1. Ectopic expression of Smad7 or PP1α potently inhibited TGF-β/ALK1-induced Smad1/5 phosphorylation in ECs. Conversely, siRNA-mediated knockdown of Smad7 or PP1α enhanced TGF-β/ALK1-induced signaling responses. PP1α interacted with ALK1 and this association was further potentiated by Smad7. Dephosphorylation of the ALK1, immunoprecipitated from cell lysates, was attenuated by a specific PP1 inhibitor. Conclusion Our results suggest that upon its induction by the TGF-β/ALK1 pathway, Smad7 may recruit PP1α to ALK1, and thereby control TGF-β/ALK1-induced Smad1/5 phosphorylation. Reverse Transcription Polymerase Chain Reaction (dpeaa)DE-He213 Smad2 Phosphorylation (dpeaa)DE-He213 Reverse Transcription Polymerase Chain Reaction Reaction (dpeaa)DE-He213 ALK1 Signaling (dpeaa)DE-He213 ALK1 Pathway (dpeaa)DE-He213 Goumans, Marie-José aut Itoh, Fumiko aut Itoh, Susumu aut Heldin, Carl-Henrik aut Dijke, Peter ten aut Enthalten in BMC cell biology London : BioMed Central, 2000 7(2006), 1 vom: 29. März (DE-627)326644830 (DE-600)2041486-9 1471-2121 nnns volume:7 year:2006 number:1 day:29 month:03 https://dx.doi.org/10.1186/1471-2121-7-16 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 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_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4338 GBV_ILN_4367 GBV_ILN_4700 AR 7 2006 1 29 03 |
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10.1186/1471-2121-7-16 doi (DE-627)SPR026932571 (SPR)1471-2121-7-16-e DE-627 ger DE-627 rakwb eng Valdimarsdottir, Gudrun verfasserin aut Smad7 and protein phosphatase 1α are critical determinants in the duration of TGF-β/ALK1 signaling in endothelial cells 2006 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Valdimarsdottir et al; licensee BioMed Central Ltd. 2006. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( Background In endothelial cells (EC), transforming growth factor-β (TGF-β) can bind to and transduce signals through ALK1 and ALK5. The TGF-β/ALK5 and TGF-β/ALK1 pathways have opposite effects on EC behaviour. Besides differential receptor binding, the duration of TGF-β signaling is an important specificity determinant for signaling responses. TGF-β/ALK1-induced Smad1/5 phosphorylation in ECs occurs transiently. Results The temporal activation of TGF-β-induced Smad1/5 phosphorylation in ECs was found to be affected by de novo protein synthesis, and ALK1 and Smad5 expression levels determined signal strength of TGF-β/ALK1 signaling pathway. Smad7 and protein phosphatase 1α (PP1α) mRNA expression levels were found to be specifically upregulated by TGF-β/ALK1. Ectopic expression of Smad7 or PP1α potently inhibited TGF-β/ALK1-induced Smad1/5 phosphorylation in ECs. Conversely, siRNA-mediated knockdown of Smad7 or PP1α enhanced TGF-β/ALK1-induced signaling responses. PP1α interacted with ALK1 and this association was further potentiated by Smad7. Dephosphorylation of the ALK1, immunoprecipitated from cell lysates, was attenuated by a specific PP1 inhibitor. Conclusion Our results suggest that upon its induction by the TGF-β/ALK1 pathway, Smad7 may recruit PP1α to ALK1, and thereby control TGF-β/ALK1-induced Smad1/5 phosphorylation. Reverse Transcription Polymerase Chain Reaction (dpeaa)DE-He213 Smad2 Phosphorylation (dpeaa)DE-He213 Reverse Transcription Polymerase Chain Reaction Reaction (dpeaa)DE-He213 ALK1 Signaling (dpeaa)DE-He213 ALK1 Pathway (dpeaa)DE-He213 Goumans, Marie-José aut Itoh, Fumiko aut Itoh, Susumu aut Heldin, Carl-Henrik aut Dijke, Peter ten aut Enthalten in BMC cell biology London : BioMed Central, 2000 7(2006), 1 vom: 29. März (DE-627)326644830 (DE-600)2041486-9 1471-2121 nnns volume:7 year:2006 number:1 day:29 month:03 https://dx.doi.org/10.1186/1471-2121-7-16 kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 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_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4338 GBV_ILN_4367 GBV_ILN_4700 AR 7 2006 1 29 03 |
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Smad7 and protein phosphatase 1α are critical determinants in the duration of TGF-β/ALK1 signaling in endothelial cells |
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Smad7 and protein phosphatase 1α are critical determinants in the duration of TGF-β/ALK1 signaling in endothelial cells |
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Valdimarsdottir, Gudrun Goumans, Marie-José Itoh, Fumiko Itoh, Susumu Heldin, Carl-Henrik Dijke, Peter ten |
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smad7 and protein phosphatase 1α are critical determinants in the duration of tgf-β/alk1 signaling in endothelial cells |
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Smad7 and protein phosphatase 1α are critical determinants in the duration of TGF-β/ALK1 signaling in endothelial cells |
| abstract |
Background In endothelial cells (EC), transforming growth factor-β (TGF-β) can bind to and transduce signals through ALK1 and ALK5. The TGF-β/ALK5 and TGF-β/ALK1 pathways have opposite effects on EC behaviour. Besides differential receptor binding, the duration of TGF-β signaling is an important specificity determinant for signaling responses. TGF-β/ALK1-induced Smad1/5 phosphorylation in ECs occurs transiently. Results The temporal activation of TGF-β-induced Smad1/5 phosphorylation in ECs was found to be affected by de novo protein synthesis, and ALK1 and Smad5 expression levels determined signal strength of TGF-β/ALK1 signaling pathway. Smad7 and protein phosphatase 1α (PP1α) mRNA expression levels were found to be specifically upregulated by TGF-β/ALK1. Ectopic expression of Smad7 or PP1α potently inhibited TGF-β/ALK1-induced Smad1/5 phosphorylation in ECs. Conversely, siRNA-mediated knockdown of Smad7 or PP1α enhanced TGF-β/ALK1-induced signaling responses. PP1α interacted with ALK1 and this association was further potentiated by Smad7. Dephosphorylation of the ALK1, immunoprecipitated from cell lysates, was attenuated by a specific PP1 inhibitor. Conclusion Our results suggest that upon its induction by the TGF-β/ALK1 pathway, Smad7 may recruit PP1α to ALK1, and thereby control TGF-β/ALK1-induced Smad1/5 phosphorylation. © Valdimarsdottir et al; licensee BioMed Central Ltd. 2006. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( |
| abstractGer |
Background In endothelial cells (EC), transforming growth factor-β (TGF-β) can bind to and transduce signals through ALK1 and ALK5. The TGF-β/ALK5 and TGF-β/ALK1 pathways have opposite effects on EC behaviour. Besides differential receptor binding, the duration of TGF-β signaling is an important specificity determinant for signaling responses. TGF-β/ALK1-induced Smad1/5 phosphorylation in ECs occurs transiently. Results The temporal activation of TGF-β-induced Smad1/5 phosphorylation in ECs was found to be affected by de novo protein synthesis, and ALK1 and Smad5 expression levels determined signal strength of TGF-β/ALK1 signaling pathway. Smad7 and protein phosphatase 1α (PP1α) mRNA expression levels were found to be specifically upregulated by TGF-β/ALK1. Ectopic expression of Smad7 or PP1α potently inhibited TGF-β/ALK1-induced Smad1/5 phosphorylation in ECs. Conversely, siRNA-mediated knockdown of Smad7 or PP1α enhanced TGF-β/ALK1-induced signaling responses. PP1α interacted with ALK1 and this association was further potentiated by Smad7. Dephosphorylation of the ALK1, immunoprecipitated from cell lysates, was attenuated by a specific PP1 inhibitor. Conclusion Our results suggest that upon its induction by the TGF-β/ALK1 pathway, Smad7 may recruit PP1α to ALK1, and thereby control TGF-β/ALK1-induced Smad1/5 phosphorylation. © Valdimarsdottir et al; licensee BioMed Central Ltd. 2006. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( |
| abstract_unstemmed |
Background In endothelial cells (EC), transforming growth factor-β (TGF-β) can bind to and transduce signals through ALK1 and ALK5. The TGF-β/ALK5 and TGF-β/ALK1 pathways have opposite effects on EC behaviour. Besides differential receptor binding, the duration of TGF-β signaling is an important specificity determinant for signaling responses. TGF-β/ALK1-induced Smad1/5 phosphorylation in ECs occurs transiently. Results The temporal activation of TGF-β-induced Smad1/5 phosphorylation in ECs was found to be affected by de novo protein synthesis, and ALK1 and Smad5 expression levels determined signal strength of TGF-β/ALK1 signaling pathway. Smad7 and protein phosphatase 1α (PP1α) mRNA expression levels were found to be specifically upregulated by TGF-β/ALK1. Ectopic expression of Smad7 or PP1α potently inhibited TGF-β/ALK1-induced Smad1/5 phosphorylation in ECs. Conversely, siRNA-mediated knockdown of Smad7 or PP1α enhanced TGF-β/ALK1-induced signaling responses. PP1α interacted with ALK1 and this association was further potentiated by Smad7. Dephosphorylation of the ALK1, immunoprecipitated from cell lysates, was attenuated by a specific PP1 inhibitor. Conclusion Our results suggest that upon its induction by the TGF-β/ALK1 pathway, Smad7 may recruit PP1α to ALK1, and thereby control TGF-β/ALK1-induced Smad1/5 phosphorylation. © Valdimarsdottir et al; licensee BioMed Central Ltd. 2006. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( |
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