Design, Synthesis, and Biological Evaluations of Tumor-Targeting Dual-Warhead Conjugates for a Taxoid–Camptothecin Combination Chemotherapy
摘要:
Novel tumor-targeting dual-warhead conjugates, 2 (DW-1) and 3 (DW-2), which consist of a next-generation taxoid, 1 (SB-T-1214), and camptothecin as two warheads, self-immolative disulfide linkers for drug release, biotin as the tumor-targeting moiety, and 1,3,5-triazine as the tripod splitter module, were designed and synthesized. The potency of 2 was evaluated against MX-1, MCF-7, ID8, L1210FR (BR+, biotin receptor overexpressed) and WI38 (BR-, normal) cell lines in the absence and presence of glutathione (GSH), which is an endogenous thiol that triggers drug release inside the cancer cells. With the GSH and resuspension protocol, 2 exhibited IC50 values of 3.22-9.80 nM against all BR+ cancer cell lines, and 705 nM against WI38. Thus, there was a two orders of magnitude higher selectivity to cancer cells. Also, a clear cooperative effect was observed for the taxoid-camptothecin combination when two drugs were delivered to the cancer cells specifically in the form of a dual-warhead conjugate.
[EN] RAPAMYCIN ANALOGS AS MTOR INHIBITORS<br/>[FR] ANALOGUES DE LA RAPAMYCINE UTILISÉS EN TANT QU'INHIBITEURS DE MTOR
申请人:REVOLUTION MEDICINES INC
公开号:WO2018204416A1
公开(公告)日:2018-11-08
The present disclosure relates to rapamycin analogs of the general Formula (I). The compounds are inhibitors of mTOR and thus useful for the treatment of cancer, immune-mediated diseases and age related conditions.
Induction of apoptosis in MDA-MB-231 breast cancer cells by a PARP1-targeting PROTAC small molecule
作者:Qiuye Zhao、Tianlong Lan、Shang Su、Yu Rao
DOI:10.1039/c8cc07813k
日期:——
We report for the first time a PARP1-targeting PROTAC small molecule to selectively induce the cleavage of PARP1.
我们首次报道了一种针对PARP1的PROTAC小分子,可以选择性地诱导PARP1的裂解。
RAPAMYCIN ANALOGS AS MTOR INHIBITORS
申请人:Revolution Medicines, Inc.
公开号:EP3619216A1
公开(公告)日:2020-03-11
[EN] NEAR-INFRARED FLUORESCENT HEPTAMETHINE DYE CONJUGATES WITH FAVORABLE BLEACHING PROPERTIES<br/>[FR] CONJUGUÉS DE COLORANT HEPTAMÉTHINE FLUORESCENTS DANS LE PROCHE INFRAROUGE AYANT DES PROPRIÉTÉS DE BLANCHIMENT FAVORABLES
申请人:[en]HELMHOLTZ ZENTRUM MÜNCHEN - DEUTSCHES FORSCHUNGSZENTRUM FÜR GESUNDHEIT UND UMWELT (GMBH)
公开号:WO2023227601A1
公开(公告)日:2023-11-30
The present invention relates to near-infrared fluorescent heptamethine dyes of formula (I) and conjugates of such heptamethine dyes with favourable biodistribution and bleaching properties. The invention is further directed to the use of these compounds in diagnosis or in intraoperative surgery, in particular for use as contrast agents.