In vitro antiproliferative effects of the indole alkaloid vallesiachotamine on human melanoma cells

Abstract In course of a screening for small molecules presenting potential anticancer properties, a known monoterpene indole alkaloid named vallesiachotamine was isolated from the leaves of Palicourea rigida (Rubiaceae) collected in the Brazilian Cerrado. The structure was determined by spectroscopi...
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Autor*in:	Soares, Paula R. O. [verfasserIn] de Oliveira, Pollyana Laurindo de Oliveira, Cecília M. A. Kato, Lucilia Guillo, Lídia Andreu

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2012

Anmerkung:	© The Pharmaceutical Society of Korea and Springer Netherlands 2012

Übergeordnetes Werk:	Enthalten in: Archives of pharmacal research - Berlin : Springer, 1978, 35(2012), 3 vom: März, Seite 565-571
Übergeordnetes Werk:	volume:35 ; year:2012 ; number:3 ; month:03 ; pages:565-571

Links:	Volltext

DOI / URN:	10.1007/s12272-012-0320-7

Katalog-ID:	SPR024682586

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520			\|a Abstract In course of a screening for small molecules presenting potential anticancer properties, a known monoterpene indole alkaloid named vallesiachotamine was isolated from the leaves of Palicourea rigida (Rubiaceae) collected in the Brazilian Cerrado. The structure was determined by spectroscopic methods, mainly 1D- and 2D-NMR and its biological activities were investigated on cultured human (SK-MEL-37) melanoma cells. In vitro cytotoxicity was evaluated by the 3-(4, 5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The inhibitory concentration ($ IC_{50} $) was 14.7 ± 1.2 μM for 24 h of drug exposure. Flow cytometry analysis revealed that vallesiachotamine induced G0/G1 arrest and increased the proportion of sub-G1 hypodiploid cells (at 11 μM and 22 μM) and this effect was not dependent on time of incubation. At these concentrations, a typical ladder was observed by agarose gel electrophoresis of the extracted DNA. Treatment of cells with 50 μM vallesiachotamine for 24 h caused extensive cytotoxicity and necrosis. Our results demonstrated that the indole alkaloid vallesiachotamine exhibited important cytotoxicity toward human melanoma cells and that apoptosis and necrosis might be responsible for the observed events.
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matchkey_str	article:19763786:2012----::niratpoieaiefetotenoelaodalsaht
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publishDate	2012
allfields	10.1007/s12272-012-0320-7 doi (DE-627)SPR024682586 (SPR)s12272-012-0320-7-e DE-627 ger DE-627 rakwb eng Soares, Paula R. O. verfasserin aut In vitro antiproliferative effects of the indole alkaloid vallesiachotamine on human melanoma cells 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Pharmaceutical Society of Korea and Springer Netherlands 2012 Abstract In course of a screening for small molecules presenting potential anticancer properties, a known monoterpene indole alkaloid named vallesiachotamine was isolated from the leaves of Palicourea rigida (Rubiaceae) collected in the Brazilian Cerrado. The structure was determined by spectroscopic methods, mainly 1D- and 2D-NMR and its biological activities were investigated on cultured human (SK-MEL-37) melanoma cells. In vitro cytotoxicity was evaluated by the 3-(4, 5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The inhibitory concentration ($ IC_{50} $) was 14.7 ± 1.2 μM for 24 h of drug exposure. Flow cytometry analysis revealed that vallesiachotamine induced G0/G1 arrest and increased the proportion of sub-G1 hypodiploid cells (at 11 μM and 22 μM) and this effect was not dependent on time of incubation. At these concentrations, a typical ladder was observed by agarose gel electrophoresis of the extracted DNA. Treatment of cells with 50 μM vallesiachotamine for 24 h caused extensive cytotoxicity and necrosis. Our results demonstrated that the indole alkaloid vallesiachotamine exhibited important cytotoxicity toward human melanoma cells and that apoptosis and necrosis might be responsible for the observed events. de Oliveira, Pollyana Laurindo aut de Oliveira, Cecília M. A. aut Kato, Lucilia aut Guillo, Lídia Andreu aut Enthalten in Archives of pharmacal research Berlin : Springer, 1978 35(2012), 3 vom: März, Seite 565-571 (DE-627)363761802 (DE-600)2106388-6 1976-3786 nnns volume:35 year:2012 number:3 month:03 pages:565-571 https://dx.doi.org/10.1007/s12272-012-0320-7 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_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 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_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 35 2012 3 03 565-571
spelling	10.1007/s12272-012-0320-7 doi (DE-627)SPR024682586 (SPR)s12272-012-0320-7-e DE-627 ger DE-627 rakwb eng Soares, Paula R. O. verfasserin aut In vitro antiproliferative effects of the indole alkaloid vallesiachotamine on human melanoma cells 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Pharmaceutical Society of Korea and Springer Netherlands 2012 Abstract In course of a screening for small molecules presenting potential anticancer properties, a known monoterpene indole alkaloid named vallesiachotamine was isolated from the leaves of Palicourea rigida (Rubiaceae) collected in the Brazilian Cerrado. The structure was determined by spectroscopic methods, mainly 1D- and 2D-NMR and its biological activities were investigated on cultured human (SK-MEL-37) melanoma cells. In vitro cytotoxicity was evaluated by the 3-(4, 5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The inhibitory concentration ($ IC_{50} $) was 14.7 ± 1.2 μM for 24 h of drug exposure. Flow cytometry analysis revealed that vallesiachotamine induced G0/G1 arrest and increased the proportion of sub-G1 hypodiploid cells (at 11 μM and 22 μM) and this effect was not dependent on time of incubation. At these concentrations, a typical ladder was observed by agarose gel electrophoresis of the extracted DNA. Treatment of cells with 50 μM vallesiachotamine for 24 h caused extensive cytotoxicity and necrosis. Our results demonstrated that the indole alkaloid vallesiachotamine exhibited important cytotoxicity toward human melanoma cells and that apoptosis and necrosis might be responsible for the observed events. de Oliveira, Pollyana Laurindo aut de Oliveira, Cecília M. A. aut Kato, Lucilia aut Guillo, Lídia Andreu aut Enthalten in Archives of pharmacal research Berlin : Springer, 1978 35(2012), 3 vom: März, Seite 565-571 (DE-627)363761802 (DE-600)2106388-6 1976-3786 nnns volume:35 year:2012 number:3 month:03 pages:565-571 https://dx.doi.org/10.1007/s12272-012-0320-7 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_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 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_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 35 2012 3 03 565-571
allfields_unstemmed	10.1007/s12272-012-0320-7 doi (DE-627)SPR024682586 (SPR)s12272-012-0320-7-e DE-627 ger DE-627 rakwb eng Soares, Paula R. O. verfasserin aut In vitro antiproliferative effects of the indole alkaloid vallesiachotamine on human melanoma cells 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Pharmaceutical Society of Korea and Springer Netherlands 2012 Abstract In course of a screening for small molecules presenting potential anticancer properties, a known monoterpene indole alkaloid named vallesiachotamine was isolated from the leaves of Palicourea rigida (Rubiaceae) collected in the Brazilian Cerrado. The structure was determined by spectroscopic methods, mainly 1D- and 2D-NMR and its biological activities were investigated on cultured human (SK-MEL-37) melanoma cells. In vitro cytotoxicity was evaluated by the 3-(4, 5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The inhibitory concentration ($ IC_{50} $) was 14.7 ± 1.2 μM for 24 h of drug exposure. Flow cytometry analysis revealed that vallesiachotamine induced G0/G1 arrest and increased the proportion of sub-G1 hypodiploid cells (at 11 μM and 22 μM) and this effect was not dependent on time of incubation. At these concentrations, a typical ladder was observed by agarose gel electrophoresis of the extracted DNA. Treatment of cells with 50 μM vallesiachotamine for 24 h caused extensive cytotoxicity and necrosis. Our results demonstrated that the indole alkaloid vallesiachotamine exhibited important cytotoxicity toward human melanoma cells and that apoptosis and necrosis might be responsible for the observed events. de Oliveira, Pollyana Laurindo aut de Oliveira, Cecília M. A. aut Kato, Lucilia aut Guillo, Lídia Andreu aut Enthalten in Archives of pharmacal research Berlin : Springer, 1978 35(2012), 3 vom: März, Seite 565-571 (DE-627)363761802 (DE-600)2106388-6 1976-3786 nnns volume:35 year:2012 number:3 month:03 pages:565-571 https://dx.doi.org/10.1007/s12272-012-0320-7 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_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 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_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 35 2012 3 03 565-571
allfieldsGer	10.1007/s12272-012-0320-7 doi (DE-627)SPR024682586 (SPR)s12272-012-0320-7-e DE-627 ger DE-627 rakwb eng Soares, Paula R. O. verfasserin aut In vitro antiproliferative effects of the indole alkaloid vallesiachotamine on human melanoma cells 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Pharmaceutical Society of Korea and Springer Netherlands 2012 Abstract In course of a screening for small molecules presenting potential anticancer properties, a known monoterpene indole alkaloid named vallesiachotamine was isolated from the leaves of Palicourea rigida (Rubiaceae) collected in the Brazilian Cerrado. The structure was determined by spectroscopic methods, mainly 1D- and 2D-NMR and its biological activities were investigated on cultured human (SK-MEL-37) melanoma cells. In vitro cytotoxicity was evaluated by the 3-(4, 5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The inhibitory concentration ($ IC_{50} $) was 14.7 ± 1.2 μM for 24 h of drug exposure. Flow cytometry analysis revealed that vallesiachotamine induced G0/G1 arrest and increased the proportion of sub-G1 hypodiploid cells (at 11 μM and 22 μM) and this effect was not dependent on time of incubation. At these concentrations, a typical ladder was observed by agarose gel electrophoresis of the extracted DNA. Treatment of cells with 50 μM vallesiachotamine for 24 h caused extensive cytotoxicity and necrosis. Our results demonstrated that the indole alkaloid vallesiachotamine exhibited important cytotoxicity toward human melanoma cells and that apoptosis and necrosis might be responsible for the observed events. de Oliveira, Pollyana Laurindo aut de Oliveira, Cecília M. A. aut Kato, Lucilia aut Guillo, Lídia Andreu aut Enthalten in Archives of pharmacal research Berlin : Springer, 1978 35(2012), 3 vom: März, Seite 565-571 (DE-627)363761802 (DE-600)2106388-6 1976-3786 nnns volume:35 year:2012 number:3 month:03 pages:565-571 https://dx.doi.org/10.1007/s12272-012-0320-7 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_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 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_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 35 2012 3 03 565-571
allfieldsSound	10.1007/s12272-012-0320-7 doi (DE-627)SPR024682586 (SPR)s12272-012-0320-7-e DE-627 ger DE-627 rakwb eng Soares, Paula R. O. verfasserin aut In vitro antiproliferative effects of the indole alkaloid vallesiachotamine on human melanoma cells 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Pharmaceutical Society of Korea and Springer Netherlands 2012 Abstract In course of a screening for small molecules presenting potential anticancer properties, a known monoterpene indole alkaloid named vallesiachotamine was isolated from the leaves of Palicourea rigida (Rubiaceae) collected in the Brazilian Cerrado. The structure was determined by spectroscopic methods, mainly 1D- and 2D-NMR and its biological activities were investigated on cultured human (SK-MEL-37) melanoma cells. In vitro cytotoxicity was evaluated by the 3-(4, 5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The inhibitory concentration ($ IC_{50} $) was 14.7 ± 1.2 μM for 24 h of drug exposure. Flow cytometry analysis revealed that vallesiachotamine induced G0/G1 arrest and increased the proportion of sub-G1 hypodiploid cells (at 11 μM and 22 μM) and this effect was not dependent on time of incubation. At these concentrations, a typical ladder was observed by agarose gel electrophoresis of the extracted DNA. Treatment of cells with 50 μM vallesiachotamine for 24 h caused extensive cytotoxicity and necrosis. Our results demonstrated that the indole alkaloid vallesiachotamine exhibited important cytotoxicity toward human melanoma cells and that apoptosis and necrosis might be responsible for the observed events. de Oliveira, Pollyana Laurindo aut de Oliveira, Cecília M. A. aut Kato, Lucilia aut Guillo, Lídia Andreu aut Enthalten in Archives of pharmacal research Berlin : Springer, 1978 35(2012), 3 vom: März, Seite 565-571 (DE-627)363761802 (DE-600)2106388-6 1976-3786 nnns volume:35 year:2012 number:3 month:03 pages:565-571 https://dx.doi.org/10.1007/s12272-012-0320-7 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_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 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_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 35 2012 3 03 565-571
language	English
source	Enthalten in Archives of pharmacal research 35(2012), 3 vom: März, Seite 565-571 volume:35 year:2012 number:3 month:03 pages:565-571
sourceStr	Enthalten in Archives of pharmacal research 35(2012), 3 vom: März, Seite 565-571 volume:35 year:2012 number:3 month:03 pages:565-571
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container_title	Archives of pharmacal research
authorswithroles_txt_mv	Soares, Paula R. O. @@aut@@ de Oliveira, Pollyana Laurindo @@aut@@ de Oliveira, Cecília M. A. @@aut@@ Kato, Lucilia @@aut@@ Guillo, Lídia Andreu @@aut@@
publishDateDaySort_date	2012-03-01T00:00:00Z
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author	Soares, Paula R. O.
spellingShingle	Soares, Paula R. O. In vitro antiproliferative effects of the indole alkaloid vallesiachotamine on human melanoma cells
authorStr	Soares, Paula R. O.
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topic_title	In vitro antiproliferative effects of the indole alkaloid vallesiachotamine on human melanoma cells
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title	In vitro antiproliferative effects of the indole alkaloid vallesiachotamine on human melanoma cells
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title_full	In vitro antiproliferative effects of the indole alkaloid vallesiachotamine on human melanoma cells
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author_browse	Soares, Paula R. O. de Oliveira, Pollyana Laurindo de Oliveira, Cecília M. A. Kato, Lucilia Guillo, Lídia Andreu
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doi_str_mv	10.1007/s12272-012-0320-7
title_sort	in vitro antiproliferative effects of the indole alkaloid vallesiachotamine on human melanoma cells
title_auth	In vitro antiproliferative effects of the indole alkaloid vallesiachotamine on human melanoma cells
abstract	Abstract In course of a screening for small molecules presenting potential anticancer properties, a known monoterpene indole alkaloid named vallesiachotamine was isolated from the leaves of Palicourea rigida (Rubiaceae) collected in the Brazilian Cerrado. The structure was determined by spectroscopic methods, mainly 1D- and 2D-NMR and its biological activities were investigated on cultured human (SK-MEL-37) melanoma cells. In vitro cytotoxicity was evaluated by the 3-(4, 5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The inhibitory concentration ($ IC_{50} $) was 14.7 ± 1.2 μM for 24 h of drug exposure. Flow cytometry analysis revealed that vallesiachotamine induced G0/G1 arrest and increased the proportion of sub-G1 hypodiploid cells (at 11 μM and 22 μM) and this effect was not dependent on time of incubation. At these concentrations, a typical ladder was observed by agarose gel electrophoresis of the extracted DNA. Treatment of cells with 50 μM vallesiachotamine for 24 h caused extensive cytotoxicity and necrosis. Our results demonstrated that the indole alkaloid vallesiachotamine exhibited important cytotoxicity toward human melanoma cells and that apoptosis and necrosis might be responsible for the observed events. © The Pharmaceutical Society of Korea and Springer Netherlands 2012
abstractGer	Abstract In course of a screening for small molecules presenting potential anticancer properties, a known monoterpene indole alkaloid named vallesiachotamine was isolated from the leaves of Palicourea rigida (Rubiaceae) collected in the Brazilian Cerrado. The structure was determined by spectroscopic methods, mainly 1D- and 2D-NMR and its biological activities were investigated on cultured human (SK-MEL-37) melanoma cells. In vitro cytotoxicity was evaluated by the 3-(4, 5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The inhibitory concentration ($ IC_{50} $) was 14.7 ± 1.2 μM for 24 h of drug exposure. Flow cytometry analysis revealed that vallesiachotamine induced G0/G1 arrest and increased the proportion of sub-G1 hypodiploid cells (at 11 μM and 22 μM) and this effect was not dependent on time of incubation. At these concentrations, a typical ladder was observed by agarose gel electrophoresis of the extracted DNA. Treatment of cells with 50 μM vallesiachotamine for 24 h caused extensive cytotoxicity and necrosis. Our results demonstrated that the indole alkaloid vallesiachotamine exhibited important cytotoxicity toward human melanoma cells and that apoptosis and necrosis might be responsible for the observed events. © The Pharmaceutical Society of Korea and Springer Netherlands 2012
abstract_unstemmed	Abstract In course of a screening for small molecules presenting potential anticancer properties, a known monoterpene indole alkaloid named vallesiachotamine was isolated from the leaves of Palicourea rigida (Rubiaceae) collected in the Brazilian Cerrado. The structure was determined by spectroscopic methods, mainly 1D- and 2D-NMR and its biological activities were investigated on cultured human (SK-MEL-37) melanoma cells. In vitro cytotoxicity was evaluated by the 3-(4, 5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The inhibitory concentration ($ IC_{50} $) was 14.7 ± 1.2 μM for 24 h of drug exposure. Flow cytometry analysis revealed that vallesiachotamine induced G0/G1 arrest and increased the proportion of sub-G1 hypodiploid cells (at 11 μM and 22 μM) and this effect was not dependent on time of incubation. At these concentrations, a typical ladder was observed by agarose gel electrophoresis of the extracted DNA. Treatment of cells with 50 μM vallesiachotamine for 24 h caused extensive cytotoxicity and necrosis. Our results demonstrated that the indole alkaloid vallesiachotamine exhibited important cytotoxicity toward human melanoma cells and that apoptosis and necrosis might be responsible for the observed events. © The Pharmaceutical Society of Korea and Springer Netherlands 2012
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title_short	In vitro antiproliferative effects of the indole alkaloid vallesiachotamine on human melanoma cells
url	https://dx.doi.org/10.1007/s12272-012-0320-7
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author2	de Oliveira, Pollyana Laurindo de Oliveira, Cecília M. A. Kato, Lucilia Guillo, Lídia Andreu
author2Str	de Oliveira, Pollyana Laurindo de Oliveira, Cecília M. A. Kato, Lucilia Guillo, Lídia Andreu
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doi_str	10.1007/s12272-012-0320-7
up_date	2024-07-04T01:56:45.858Z
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O.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">In vitro antiproliferative effects of the indole alkaloid vallesiachotamine on human melanoma cells</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2012</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="500" ind1=" " ind2=" "><subfield code="a">© The Pharmaceutical Society of Korea and Springer Netherlands 2012</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Abstract In course of a screening for small molecules presenting potential anticancer properties, a known monoterpene indole alkaloid named vallesiachotamine was isolated from the leaves of Palicourea rigida (Rubiaceae) collected in the Brazilian Cerrado. The structure was determined by spectroscopic methods, mainly 1D- and 2D-NMR and its biological activities were investigated on cultured human (SK-MEL-37) melanoma cells. In vitro cytotoxicity was evaluated by the 3-(4, 5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The inhibitory concentration ($ IC_{50} $) was 14.7 ± 1.2 μM for 24 h of drug exposure. Flow cytometry analysis revealed that vallesiachotamine induced G0/G1 arrest and increased the proportion of sub-G1 hypodiploid cells (at 11 μM and 22 μM) and this effect was not dependent on time of incubation. At these concentrations, a typical ladder was observed by agarose gel electrophoresis of the extracted DNA. Treatment of cells with 50 μM vallesiachotamine for 24 h caused extensive cytotoxicity and necrosis. 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In vitro antiproliferative effects of the indole alkaloid vallesiachotamine on human melanoma cells

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