Biliary sterol secretion is not required for macrophage reverse cholesterol transport.

Biliary sterol secretion is not required for macrophage reverse cholesterol transport.
复制标题

DOI:
10.1016/j.cmet.2010.05.011
复制
发表时间:
2010-07-07
期刊:
影响因子:
29
通讯作者:
Brown JM
Brown JM
中科院分区:
生物学1区
文献类型:
--
作者:
Temel RE;Sawyer JK;Yu L;Lord C;Degirolamo C;McDaniel A;Marshall S;Wang N;Shah R;Rudel LL;Brown JM

文献摘要

参考文献

被引文献

相似文献

最近的证据表明,肠道可能在胆固醇逆向转运(RCT)中发挥直接的促进作用,而不依赖于肝胆分泌。为了了解RCT的非胆道途径,我们创建了胆固醇不足的遗传和手术模型。为了从遗传上抑制胆汁胆固醇分泌,我们产生了在肝脏中过表达尼曼-匹克C1样1(NPC 1 L1)的小鼠。与对照组相比,NPC 1 L1 Liver-Tg小鼠表现出胆汁胆固醇分泌减少> 90%,但大量粪便固醇损失和巨噬细胞RCT正常。为了通过手术抑制胆汁排空到肠道,我们建立了一个急性胆道改道模型。引人注目的是,巨噬细胞RCT持续存在于手术缺乏分泌胆汁进入肠道的能力的小鼠中。总的来说,这些研究表明,大量粪便固醇损失和巨噬细胞RCT可以在没有胆汁固醇分泌的情况下进行,挑战胆汁在RCT中的专性作用。
Recent evidence suggests that the intestine may play a direct facilitative role in reverse cholesterol transport (RCT), independent of hepatobiliary secretion. In order to understand the non-biliary pathway for RCT we created both genetic and surgical models of biliary cholesterol insufficiency. To genetically inhibit biliary cholesterol secretion we generated mice in which Niemann-Pick C1-Like 1 (NPC1L1) was overexpressed in the liver. Compared to controls, NPC1L1Liver-Tg mice exhibit a > 90% decrease in biliary cholesterol secretion, yet mass fecal sterol loss and macrophage RCT is normal. To surgically inhibit biliary emptying into the intestine, we have established an acute biliary diversion model. Strikingly, macrophage RCT persists in mice surgically lacking the ability to secrete bile into the intestine. Collectively, these studies demonstrate that mass fecal sterol loss and macrophage RCT can proceed in the absence of biliary sterol secretion, challenging the obligate role of bile in RCT.
DOI: 10.1074/jbc.m206522200
发表时间: 2002-09-13
影响因子: 4.8
作者:
Plösch, T;Kok, T;Kuiper, F
通讯作者: Kuiper, F
DOI: 10.1172/jci12473
发表时间: 2001-09-01
影响因子: 15.9
作者:
Groen, AK;Bloks, VW;Kuipers, F
通讯作者: Kuipers, F
DOI: 10.1074/jbc.m109.014860
发表时间: 2009-07-17
影响因子: 4.8
作者:
van der Veen, Jelske N.;van Dijk, Theo H.;Kuipers, Folkert
通讯作者: Kuipers, Folkert
DOI: 10.1161/01.cir.0000086981.09834.e0
发表时间: 2003-08-12
期刊: CIRCULATION
影响因子: 37.8
作者:
Zhang, YZ;Zanotti, I;Rader, DJ
通讯作者: Rader, DJ
DOI: 10.1073/pnas.252582399
发表时间: 2002-12-10
影响因子: 11.1
作者:
Yu, LQ;Hammer, RE;Hobbs, HH
通讯作者: Hobbs, HH