NCOA5 haploinsufficiency results in glucose intolerance and subsequent hepatocellular carcinoma.

NCOA5 haploinsufficiency results in glucose intolerance and subsequent hepatocellular carcinoma.
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DOI:
10.1016/j.ccr.2013.11.005
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发表时间:
2013-12-09
期刊:
影响因子:
50.3
通讯作者:
Xiao H
Xiao H
中科院分区:
医学1区
文献类型:
--
作者:
Gao S;Li A;Liu F;Chen F;Williams M;Zhang C;Kelley Z;Wu CL;Luo R;Xiao H

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2型糖尿病(T2 D)和男性与肝细胞癌(HCC)的发展相关。我们证明了Ncoa 5基因的杂合性缺失导致肝癌的自发发展,仅在雄性小鼠中。肿瘤发展之前,IL-6表达增加,早发性葡萄糖耐受不良,以及肝脏中进行性脂肪变性和发育不良。阻断IL-6过表达可避免葡萄糖耐受不良并部分阻止HCC的发展。此外,减少的NCOA 5表达与一部分人HCC和具有共病T2 D的HCC相关。这些发现表明,NCOA 5是一个单倍不足的肿瘤抑制因子,NCOA 5缺陷增加了对葡萄糖耐受不良和HCC的易感性,部分原因是增加了IL-6的表达。因此,我们的发现为开发治疗方法以对抗这些疾病开辟了额外的途径。
Type 2 Diabetes (T2D) and male gender are associated with hepatocellular carcinoma (HCC) development. We demonstrate that heterozygous deletion of the Ncoa5 gene causes spontaneous development of HCC, exclusively in male mice. Tumor development is preceded by increased IL-6 expression, early-onset glucose intolerance, and progressive steatosis and dysplasia in livers. Blockading IL-6 overexpression averts glucose intolerance and partially deters HCC development. Moreover, reduced NCOA5 expression is associated with a fraction of human HCCs and HCCs with comorbid T2D. These findings suggest that NCOA5 is a haplo-insufficient tumor suppressor, and NCOA5 deficiency increases susceptibility to both glucose intolerance and HCC, partially by increasing IL-6 expression. Thus, our findings open additional avenues for developing therapeutic approaches to combat these diseases.
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