Carbon monoxide enhances early liver regeneration in mice after hepatectomy.
Carbon monoxide enhances early liver regeneration in mice after hepatectomy.
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DOI：
10.1002/hep.24317
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发表时间：
2011-06
期刊：
影响因子：
13.5
通讯作者：
Otterbein, Leo E.
中科院分区：
文献类型：
--
作者：
Kuramitsu, Kaori;Gallo, David;Yoon, Myunghee;Chin, Beek Y.;Csizmadia, Eva;Hanto, Douglas W.;Otterbein, Leo E.
Hepatocyte proliferation early after liver resection is critical in restoring liver mass and preserving function as the liver regenerates. Carbon monoxide (CO) generated by heme oxygenase-1 (HO-1) strongly influences cellular proliferation and both HO-1 and CO are accepted hepatoprotective molecules. Mice lacking functional HO-1 were unable to mount an appropriate regenerative response following partial hepatectomy (PHTx) compared to wild type controls. We therefore hypothesized that exogenous administration of CO at low, non-toxic concentrations would modulate hepatocyte (HC) proliferation and liver regeneration. Animals treated with a low concentration of CO 1 hr prior to 70% hepatectomy demonstrated enhanced expression of hepatocyte growth factor (HGF) in the liver compared to controls that correlated with a more rapid onset of hepatocyte (HC) proliferation as measured by phospho-histone3 staining, increased expression of cyclins D1 and E, phosphorylated retinoblastoma and decreased expression of the mitotic inhibitor p21. PHTx also increased activation of the HGF receptor c-Met, which was detected more then 9 hr earlier in the livers of CO-treated mice. Blockade of c-Met resulted in abrogation of the CO effects on HC proliferation. Corresponding with increased HC proliferation, treatment with CO maintained liver function with normal prothrombin times versus a 2-fold prolongation in controls. In a lethal 85% PHTx, CO treated mice showed a greater survival rate compared to controls. In vitro, CO increased HGF expression in hepatic stellate cells (HSC), but not HC and when co-cultured together led to increased HC proliferation. In summary, we demonstrate that administration of exogenous CO enhances rapid and early HC proliferation and importantly, preserves function following PHTx. Taken together, CO may offer a viable therapeutic option to facilitate rapid recovery following PHTx.
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DOI：
10.1152/ajplung.00145.2003
发表时间：
2003-12-01
影响因子：
4.9
作者：
Ameredes, BT;Otterbein, LE;Choi, AMK
通讯作者：
Choi, AMK
影响因子：
4.8
作者：
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通讯作者：
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影响因子：
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作者：
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通讯作者：
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影响因子：
29.4
作者：
Moore, BA;Otterbein, LE;Bauer, AJ
通讯作者：
Bauer, AJ
影响因子：
0.9
作者：
Glanemann, M;Schirmeier, A;Nussler, AK
通讯作者：
Nussler, AK