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Cell Metab:胖肚子还是胖屁股?科学告诉你答案

2015-02-06 生物谷 生物谷

近日,最新一期cell metabolism刊登了英国牛津大学的一项最新研究成果,他们发现WNT/β-catenin 信号通路在人体不同部位的活性差异会影响人体脂肪分布,并且这种脂肪分布的差异可能会导致患糖尿病和心血管疾病的风险不同。 研究人员指出,WNT信号通路中常见基因突变一般都与骨含量与脂肪分布有关,而脂肪分布情况常与糖尿病和心血管疾病患病风险紧密相关。之前研究发现WNT共受体分子LRP5和



近日,最新一期cell metabolism刊登了英国牛津大学的一项最新研究成果,他们发现WNT/β-catenin 信号通路在人体不同部位的活性差异会影响人体脂肪分布,并且这种脂肪分布的差异可能会导致患糖尿病和心血管疾病的风险不同。

研究人员指出,WNT信号通路中常见基因突变一般都与骨含量与脂肪分布有关,而脂肪分布情况常与糖尿病和心血管疾病患病风险紧密相关。之前研究发现WNT共受体分子LRP5和LRP6的罕见突变也与骨和心脏代谢紊乱有关。研究人员研究了LRP5在人类脂肪组织中的作用,结果发现具有LRP5功能获得性突变的人具有更高的骨含量以及更低的脂肪积累。相反的,与低骨密度相关的LRP5等位基因与腹部脂肪增加具有相关性。

通过体外实验发现,腹部脂肪前体细胞比臀部脂肪前体细胞具有更高的LRP5表达,而在腹部和臀部脂肪前体细胞中等量敲低LRP5能够对β-catenin信号通路产生剂量依赖性损伤,但会产生不同的结果:臀部脂肪生成下降,腹部脂肪生成增加。

综上所述,该文章着重强调了不同部位WNT/β-catenin信号通路活性差异是如何通过影响脂肪前体细胞调节人类脂肪分布,同时证明了LRP5可作为治疗心脏代谢紊乱的潜在药物学靶点。

原始出处:

Loh NY1, Neville MJ2, Marinou K3, Hardcastle SA4, Fielding BA5, Duncan EL6, McCarthy MI2, Tobias JH4, Gregson CL4, Karpe F7, Christodoulides C8.LRP5 Regulates Human Body Fat Distribution by Modulating Adipose Progenitor Biology in a Dose- and Depot-Specific Fashion.Cell Metab. 2015 Feb 3;21(2):262-72. doi: 10.1016/j.cmet.2015.01.009.

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    2015-07-17 一闲
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    2015-05-14 维他命
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    2015-08-13 guojianrong
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    2015-02-16 windmilL1989

    0

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    2015-02-07 zzyzzy

    0

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