PROCESS FOR THE ISOLATION OF ORGANIC COMPOUNDS USEFUL FOR THE TREATMENT OF CANCER
申请人:Mandal Chitra
公开号:US20130065932A1
公开(公告)日:2013-03-14
The present invention relates to two main components, mahanine and mahanimbine (dehydroxy-mahanine) from
Murraya koenigii
for the treatment of glioblastoma and cervical carcinoma. Mahanimbine exhibited anti-cancer activity against lymphoid leukemia, myeloid leukemia, glioma, cervical carcinoma, pancreatic, colon and lung cancers in nineteen cells of different genetic status. C-3 hydroxy and NH groups are responsible contributing groups for their cytotoxicity. Mahanine reduced the doses of cisplatin and paclitaxel in cervical cancer showing better efficacy and useful as an adjunct chemotherapeutic agent to reduce toxicity these two drugs. A new cheap process for this preparation was established. EtOAc extract containing alkaloids enriched with mahanimbine and mahanine, is active against glioma and cervical cancers. Mahanine is targeting the chaperone Hsp90 which led to the proteasome-dependent degradation of several Hsp90-client proteins in diverse carcinoma types, glioblastoma, cervical carcinoma and pancreatic adenocarcinoma irrespective of their tissue origins thereby killing the cancer cells.
本发明涉及从九里香(Murraya koenigii)中提取的两种主要成分,马哈宁(mahanine)和去羟基马哈宁(mahanimbine),用于治疗胶质母细胞瘤和宫颈癌。去羟基马哈宁在19种不同基因状态的细胞中对淋巴细胞白血病、骨髓性白血病、胶质瘤、宫颈癌、胰腺癌、结肠癌和肺癌等展现出抗癌活性。C-3羟基和NH基团是它们细胞毒性的贡献因子。马哈宁降低了顺铂和紫杉醇在宫颈癌中的剂量,显示出更好的疗效,并可作为辅助化疗药物以减轻这两种药物的毒性。本发明还建立了一种新的廉价制备方法。富含去羟基马哈宁和马哈宁的乙酸乙酯提取物对胶质瘤和宫颈癌具有活性。马哈宁针对分子伴侣蛋白Hsp90,导致多种癌症类型、胶质母细胞瘤、宫颈癌和胰腺腺癌的Hsp90客户蛋白在蛋白酶体依赖性降解下被杀死。