Inactivation of CBF/NF-Y in postnatal liver causes hepatocellular degeneration, lipid deposition, and endoplasmic reticulum stress.
Inactivation of CBF/NF-Y in postnatal liver causes hepatocellular degeneration, lipid deposition, and endoplasmic reticulum stress.
复制标题
DOI:
10.1038/srep00136
复制
发表时间:
2011
影响因子:
4.6
通讯作者:
Maity, Sankar N.
中科院分区:
文献类型:
--
作者:
Luo, Rong;Klumpp, Sherry A.;Finegold, Milton J.;Maity, Sankar N.
We previously demonstrated that CBF activity is needed for cell proliferation and early embryonic development. To examine the in vivo function of CBF in differentiated hepatocytes, we conditionally deleted CBF-B in hepatocytes after birth. Deletion of CBF-B resulted in progressive liver injury and severe hepatocellular degeneration 4 weeks after birth. Electron microscopic examination demonstrated pleiotropic changes of hepatocytes including enlarged cell and nuclear size, intracellular lipid deposition, disorganized endoplasmic reticulum, and mitochondrial abnormalities. Gene expression analyses showed that deletion of CBF-B activated expression of specific endoplasmic reticulum (ER) stress-regulated genes. Inactivation of CBF-B also inhibited expression of C/EBP alpha, an important transcription factor controlling various metabolic processes in adult hepatocytes. Altogether, our study reveals for the first time that CBF is a key transcription factor controlling ER function and metabolic processes in mature hepatocytes.
登录
查看更多内容
影响因子:
6.7
作者:
Goldshmidt H;Matas D;Kabi A;Carmi S;Hope R;Michaeli S
通讯作者:
Michaeli S
影响因子:
64.5
作者:
Yoshida, H;Matsui, T;Mori, K
通讯作者:
Mori, K
影响因子:
25.7
作者:
Malhi, Harmeet;Kaufman, Randal J.
通讯作者:
Kaufman, Randal J.
影响因子:
14.9
作者:
Roy, B;Lee, AS
通讯作者:
Lee, AS
影响因子:
4.8
作者:
Yang, JQ;Croniger, CM;Hanson, RW
通讯作者:
Hanson, RW