Prostate carcinoma is the second most common type of men’s cancer in the world. In our country, the incidence of prostate cancer in the Urogenital Neoplasms has become the first place. Clinically its incidence is increasing gradually,its development is rapidly, differential gene express in early diagnosis and treatment of prostate cancer has great importance. Cell retinoic acid binding protein 2 (CRABP2) is a kind of cell lipid binding protein, playing an important role in the process of tumor progress, such as gastric cancer, breast cancer, ovarian cancer, head and neck cancer, kidney tumor, etc. As is reported, compared with normal prostate tissue, CRABP2 is down-regulated expression in prostate cancer tissue, but at present little was knew about the molecular mechanisms of CRABP2 in the development of prostate cancer, which needs further research. To this end, we propose a hypothesis: CRABP2 may inhibit prostate cancer’s cell proliferation and promote cell apoptosis through the RAR and HuR ways,which in turn suppress the development of prostate carcinoma.
前列腺癌是世界男性第二大常见癌症。在我国,前列腺癌在泌尿生殖系统肿瘤中的发病率已跃居首位。由于病隐匿、发展迅速,前列腺癌发生发展过程中的差异基因表达对前列腺癌的早期诊断及治疗具有重要的意义。细胞维甲酸结合蛋白2(CRABP2)是一种细胞脂质绑定蛋白,在肿瘤的发展过程中发挥着重要的作用,如胃癌、乳腺癌、卵巢癌、头颈部肿瘤,肾母细胞瘤等。有文献报道,与正常前列腺组织相比,前列腺癌组织中CRABP2表达下调,但目前对CRABP2在前列腺癌发生发展中的分子机制知之甚少,有待进一步研究。为此,我们提出假说:CRABP2可能通过RAR和HuR两条途径发挥其抑制前列腺癌细胞增殖、促进凋亡,进而发挥其抑制前列腺癌发展的功能。为了验证这一假说,我们将从分子生物学、细胞学、组织以及动物实验等方面探讨CRABP2在抑制前列腺癌发展中发挥的重要作用及分子机制,为前列腺癌的早期诊断和治疗提供新的思路。
前列腺癌是世界男性第二大常见癌症。在我国,前列腺癌在泌尿生殖系统肿瘤中的发病率已跃居首位。由于病隐匿、发展迅速,前列腺癌发生发展过程中的差异基因表达对前列腺癌的早期诊断及治疗具有重要的意义。细胞维甲酸结合蛋白2(CRABP2)是一种细胞脂质绑定蛋白,在肿瘤的发展过程中发挥着重要的作用,如胃癌、乳腺癌、卵巢癌、头颈部肿瘤,肾母细胞瘤等。有文献报道,与正常前列腺组织相比,前列腺癌组织中CRABP2表达下调,但目前对CRABP2在前列腺癌发生发展中的分子机制知之甚少,有待进一步研究。本课题研究分别通过体外实验和裸鼠体内实验证实:CRABP2可抑制前列腺癌细胞增殖,促进前列腺癌细胞凋亡。实验通过二代高通量测序分析PC-3细胞稳转CRABP2后的基因表达差异,并对差异基因进行GO和KEGG富集分析,找到了CRABP2发挥作用的关键信号通路,并通过WB实验验证了p-PI3K、PI3K、p-AKT、AKT、p-MEK、MEK、p-ERK、ERK的表达情况。本研究通过分子生物学、细胞生物学,动物实验等方法探索了CRABP2在正常前列腺组织与前列腺癌中的表达差异以及CRABP2在前列腺癌发生发展中作用的分子机制。CRABP2可抑制前列腺癌细胞的增殖、促进前列腺癌细胞的凋亡。为前列腺癌的早期诊断及前列腺癌的基因靶向治疗提供了一定的理论基础和可能性。
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数据更新时间:2023-05-31
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