Institute of Cancer Therapeutics, University of Bradford, Bradford, BD7 1RL, UK.
Cancers (Basel). 2012 Oct 26;4(4):1106-45. doi: 10.3390/cancers4041106.
Prostate cancer is the third leading cause of male cancer deaths in the developed world. The current lack of highly specific detection methods and efficient therapeutic agents for advanced disease have been identified as problems requiring further research. The integrins play a vital role in the cross-talk between the cell and extracellular matrix, enhancing the growth, migration, invasion and metastasis of cancer cells. Progression and metastasis of prostate adenocarcinoma is strongly associated with changes in integrin expression, notably abnormal expression and activation of the β3 integrins in tumour cells, which promotes haematogenous spread and tumour growth in bone. As such, influencing integrin cell expression and function using targeted therapeutics represents a potential treatment for bone metastasis, the most common and debilitating complication of advanced prostate cancer. In this review, we highlight the multiple ways in which RGD-binding integrins contribute to prostate cancer progression and metastasis, and identify the rationale for development of multi-integrin antagonists targeting the RGD-binding subfamily as molecularly targeted agents for its treatment.
在发达国家,前列腺癌是导致男性癌症死亡的第三大主要原因。目前,针对晚期疾病,缺乏高度特异性的检测方法和有效的治疗药物,这些问题都需要进一步研究。整合素在细胞与细胞外基质的相互作用中发挥着至关重要的作用,增强了癌细胞的生长、迁移、侵袭和转移。前列腺腺癌的进展和转移与整合素表达的变化密切相关,特别是肿瘤细胞中β3 整合素的异常表达和激活,促进了血液播散和骨骼中的肿瘤生长。因此,使用靶向治疗来影响整合素的细胞表达和功能,为骨转移的治疗提供了一种潜在的方法,骨转移是晚期前列腺癌最常见和最具危害性的并发症。在这篇综述中,我们强调了 RGD 结合整合素在促进前列腺癌进展和转移中的多种方式,并确定了开发针对 RGD 结合亚家族的多整合素拮抗剂作为其治疗的分子靶向药物的基本原理。