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靶向 BPTF 的溴结构域抑制在黑色素瘤和其他实体瘤治疗中的应用。

Bromodomain inhibition targeting BPTF in the treatment of melanoma and other solid tumors.

机构信息

California Pacific Medical Center Research Institute, 475 Brannan St, Suite 130, San Francisco, CA, 94107, USA.

出版信息

Clin Exp Metastasis. 2024 Aug;41(4):509-515. doi: 10.1007/s10585-024-10265-7. Epub 2024 Apr 29.

Abstract

Epigenetic mechanisms have been shown to play an important role in the development of cancer. These include the activation of chromatin remodeling factors in various malignancies, including bromodomain plant homeodomain (PHD) finger transcription factor (BPTF), the largest component of the human nucleosome remodeling factor (NURF). In the last few years, BPTF has been identified as a pro-tumorigenic factor in melanoma, stimulated by research into the molecular mechanisms underlying BPTF function. Developing therapy targeting the BPTF bromodomain would represent a significant advance. Melanoma therapy has been revolutionized by the efficacy of immunotherapeutic and targeted strategies, but the development of drug resistance calls for alternative therapeutic approaches. Recent work has shown both a biomarker as well as functional role for BPTF in melanoma progression and as a possible target for its therapy. BPTF was shown to stimulate the mitogen-activated protein kinase pathway, which is targeted by selective BRAF inhibitors. The advent of small molecule inhibitors that target bromodomain motifs has shown that bromodomains are druggable. By combining the bromodomain inhibitor bromosporine with existing treatments that target mutant BRAF, BPTF targeting has emerged as a novel and promising therapeutic approach for metastatic melanoma. This article summarizes the functional role of BPTF in tumor progression, reviews the clinical experience to date with bromodomain inhibitors, and discusses the promise of BPTF targeting in melanoma and other solid tumors.

摘要

表观遗传机制在癌症的发展中起着重要作用。这些机制包括在各种恶性肿瘤中激活染色质重塑因子,包括溴结构域植物同源域(PHD)手指转录因子(BPTF),它是人类核小体重塑因子(NURF)的最大成分。在过去的几年中,BPTF 已被确定为黑色素瘤中的促肿瘤因子,这是对 BPTF 功能的分子机制研究的结果。开发针对 BPTF 溴结构域的治疗方法将是一个重大进展。免疫治疗和靶向策略的疗效彻底改变了黑色素瘤的治疗方法,但耐药性的发展需要替代治疗方法。最近的工作表明,BPTF 在黑色素瘤的进展中既是生物标志物,也是功能靶点,并且可能是其治疗的靶点。研究表明,BPTF 可刺激丝裂原活化蛋白激酶途径,该途径是选择性 BRAF 抑制剂的作用靶点。靶向溴结构域基序的小分子抑制剂的出现表明,溴结构域是可成药的。通过将溴结构域抑制剂溴索林与靶向突变型 BRAF 的现有治疗方法相结合,BPTF 靶向已成为转移性黑色素瘤的一种新的有前途的治疗方法。本文总结了 BPTF 在肿瘤进展中的功能作用,回顾了迄今为止溴结构域抑制剂的临床经验,并讨论了 BPTF 靶向在黑色素瘤和其他实体瘤中的应用前景。

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