Faculty of Veterinary Medicine, Islamic Azad University, Science and Research Branch, Tehran, Iran.
Iran University of Medical Sciences, Tehran, Iran.
Eur J Pharmacol. 2023 Sep 15;955:175909. doi: 10.1016/j.ejphar.2023.175909. Epub 2023 Jul 23.
In addition to environmental conditions, lifestyle factors, and chemical exposure, aberrant gene expression and mutations involve in the beginning and development of urological tumors. Even in Western nations, urological malignancies are among the top causes of patient death, and their prevalence appears to be gender dependent. The prognosis for individuals with urological malignancies remains dismal and unfavorable due to the ineffectiveness of conventional treatment methods. PI3K/Akt is a popular biochemical mechanism that is activated in tumor cells as a result of PTEN loss. PI3K/Akt escalates growth and metastasis. Moreover, due to the increase in tumor cell viability caused by PI3K/Akt activation, cancer cells may acquire resistance to treatment. This review article examines the function of PI3K/Akt in major urological tumors including bladder, prostate, and renal tumors. In prostate, bladder, and kidney tumors, the level of PI3K and Akt are notably elevated. In addition, the activation of PI3K/Akt enhances the levels of Bcl-2 and XIAP, hence increasing the tumor cell survival rate. PI3K/Akt ] upregulates EMT pathways and matrix metalloproteinase expression to increase urological cancer metastasis. Furthermore, stimulation of PI3K/Akt results in drug- and radio-resistant cancers, but its suppression by anti-tumor drugs impedes the tumorigenesis.
除了环境条件、生活方式因素和化学暴露之外,异常基因表达和突变也涉及泌尿系统肿瘤的发生和发展。即使在西方国家,泌尿系统恶性肿瘤也是导致患者死亡的主要原因之一,而且其发病率似乎与性别有关。由于传统治疗方法效果不佳,泌尿系统恶性肿瘤患者的预后仍然不佳。PI3K/Akt 是一种常见的生化机制,由于 PTEN 的缺失,肿瘤细胞中会被激活。PI3K/Akt 会促进肿瘤的生长和转移。此外,由于 PI3K/Akt 的激活会增加肿瘤细胞的活力,癌细胞可能会对治疗产生耐药性。本文综述了 PI3K/Akt 在包括膀胱癌、前列腺癌和肾癌在内的主要泌尿系统肿瘤中的作用。在前列腺癌、膀胱癌和肾癌中,PI3K 和 Akt 的水平显著升高。此外,PI3K/Akt 的激活会增加 Bcl-2 和 XIAP 的水平,从而提高肿瘤细胞的存活率。PI3K/Akt 上调 EMT 途径和基质金属蛋白酶的表达,从而增加泌尿系统癌症的转移。此外,PI3K/Akt 的刺激会导致癌症产生耐药性,但抗肿瘤药物对其的抑制会阻碍肿瘤的发生。