Synthesis and SAR of novel capsazepine analogs with significant anti-cancer effects in multiple cancer types
作者:Jorge De La Chapa、Matthew Valdez、Franscisco Ruiz、Keith Gonzales、Wes Mitchell、Stanton F. McHardy、Matthew Hart、Srikanth R. Polusani、Cara B. Gonzales
DOI:10.1016/j.bmc.2018.11.040
日期:2019.1
of this study was to develop more potent analogs based upon CPZ pharmacophore and structure–activityrelationships (SAR) across analogs. We generated 30 novel compounds and screened for their anti-proliferative effects in cultured HeLa cervical cancer cells. Cell viability assays identified multiple compounds with IC50s < 15 μM and one compound, 29 with an IC50 < 5 μM; six fold more potent than CPZ
我们先前证明,辣椒素(CPZ)是一种合成的瞬时受体潜在香草酸亚型1(TRPV1)拮抗剂,在体内具有显着的抗癌作用。这项研究的目的是基于CPZ药效团和类似物之间的结构-活性关系(SAR),开发出更有效的类似物。我们生成了30种新型化合物,并筛选了它们在培养的HeLa宫颈癌细胞中的抗增殖作用。细胞活力分析鉴定出多种IC 50s <15μM的化合物和一种化合物29 IC 50 <5μM的化合物;比CPZ强六倍。我们验证两个引线化合物的抗增殖功效17和29,在体内在无胸腺裸鼠中使用HeLa衍生的异种移植物。与对照处理的动物相比,两种类似物到第8天都显着减少了肿瘤体积(p <0.001),没有明显的不良反应。钙成像确定化合物17激活TRPV1,而化合物29既不激活也不抑制TRPV1。表示不涉及TRPV1信号的唯一作用机制。使用一组其他肿瘤类型的细胞生存力分析,包括口腔鳞状细胞癌,非小细胞肺癌(N
Analogues of Capsaicin with Agonist Activity as Novel Analgesic Agents: Structure−Activity Studies. 4. Potent, Orally Active Analgesics
作者:Roger Wrigglesworth、Christopher S. J. Walpole、Stuart Bevan、Elizabeth A. Campbell、Andy Dray、Glyn A. Hughes、Iain James、Kay J. Masdin、Janet Winter
DOI:10.1021/jm960512h
日期:1996.1.1
reported modular approach. These in vitro agonist effects were shown to correlate with analgesic potency in rodent models. Combination of optimal structural features from each of these regions of the capsaicin molecule have led to highly potent agonists (eg., 1b). Evaluation in vivo established that 1b had analgesic properties but poor oral activity, short duration of action, and excitatory side effects
uses marine bacteria with adhering properties was developed. This bioassay system is suitable for screening crude extracts frommarine organisms. Using this system, those substances which regulate biofilm formation were isolated frommarine organisms. For example, bis(deacetyl)solenolide D was obtained from the marinesponge Psammaplysilla purpurea. Novel nitroalkanes were also isolated from the Okinawan