[PMID]: | 21728149 |
[Au] Autor: | Lee YZ; Huang CW; Yang CW; Hsu HY; Kang IJ; Chao YS; Chen IS; Chang HY; Lee SJ |
[Ad] Endereço: | Institute of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Miaoli, Taiwan. |
[Ti] Título: | Isolation and biological activities of phenanthroindolizidine and septicine alkaloids from the Formosan Tylophora ovata. |
[So] Source: | Planta Med;77(17):1932-8, 2011 Nov. |
[Is] ISSN: | 1439-0221 |
[Cp] País de publicação: | Germany |
[La] Idioma: | eng |
[Ab] Resumo: | An investigation of alkaloids present in the leaves and stems of Tylophora ovata led to the isolation of two new septicine alkaloids and one new phenanthroindolizidine alkaloid, tylophovatines A, B, C (1, 2, and 5), respectively, together with two known septicine and six known phenanthroindolizidine alkaloids. The structures of the new alkaloids 1, 2, and 5 were established by means of spectroscopic analyses. These eleven alkaloids show in vitro anti-inflammatory activities with IC50 values ranging from 84 nM to 20.6 µM through their suppression of nitric oxide production in RAW264.7 cells stimulated by lipopolysaccharide and interferon-γ. Moreover, these substances display growth inhibition in HONE-1, NUGC-3, HepG2, SF-268, MCF-7, and NCI-H460 cancer cell lines, with GI50 values ranging from 4 nM to 24.2 µM. In addition, tylophovatine C (5) and 13a(S)-(+)-tylophorine (7) were found to exhibit potent in vivo anti-inflammation activities in a rat paw edema model. Finally, structureactivity relationships were probed by using the isolated phenanthroindolizidines and septicines. Phenanthroindolizidines are suggested to be divided into cytotoxic agents (e.g., 10 and 11) and anti-inflammation based anticancer agents (e.g., 59). |
[Mh] Termos MeSH primário: |
Alcaloides/farmacologia Indolizinas/farmacologia Fenantrolinas/farmacologia Extratos Vegetais/farmacologia Tylophora/química
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[Mh] Termos MeSH secundário: |
Alcaloides/química Alcaloides/isolamento & purificação Animais Anti-Inflamatórios/farmacologia Antineoplásicos Fitogênicos/química Antineoplásicos Fitogênicos/farmacologia Linhagem Celular Tumoral Seres Humanos Indolizinas/química Indolizinas/isolamento & purificação Interferon gama/farmacologia Lipopolissacarídeos/farmacologia Medicina Tradicional Chinesa Estrutura Molecular Óxido Nítrico/metabolismo Fenantrolinas/química Fenantrolinas/isolamento & purificação Extratos Vegetais/química Extratos Vegetais/isolamento & purificação Folhas de Planta/química Caules de Planta/química Plantas Medicinais/química Ratos Relação Estrutura-Atividade Taiwan
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[Pt] Tipo de publicação: | JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T |
[Nm] Nome de substância:
| 0 (Alkaloids); 0 (Anti-Inflammatory Agents); 0 (Antineoplastic Agents, Phytogenic); 0 (Indolizines); 0 (Lipopolysaccharides); 0 (Phenanthrolines); 0 (Plant Extracts); 0 (phenanthroindolizidine); 0 (septicine); 31C4KY9ESH (Nitric Oxide); 82115-62-6 (Interferon-gamma) |
[Em] Mês de entrada: | 1304 |
[Cu] Atualização por classe: | 131121 |
[Lr] Data última revisão:
| 131121 |
[Sb] Subgrupo de revista: | IM |
[Da] Data de entrada para processamento: | 110706 |
[St] Status: | MEDLINE |
[do] DOI: | 10.1055/s-0030-1271199 |
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