ZAC1 target genes and pituitary tumorigenesis

被引:44
作者
Theodoropoulou, Marily [1 ]
Stalla, Guenter K. [1 ]
Spengler, Dietmar [2 ]
机构
[1] Max Planck Inst Psychiat, Dept Endocrinol, D-80804 Munich, Germany
[2] Max Planck Inst Psychiat, Dept Mol Neuroendocrinol, D-80804 Munich, Germany
关键词
ZAC1; Pituitary; Target genes; Biomarker; Somatostatin; ZINC-FINGER PROTEIN; NEONATAL DIABETES-MELLITUS; BECKWITH-WIEDEMANN-SYNDROME; DEPENDENT KINASE INHIBITOR; ACTIVATED-RECEPTOR-GAMMA; DNA-BINDING; SOMATOSTATIN ANALOG; PPAR-GAMMA; PHOSPHATIDYLINOSITOL; 3-KINASE; TRANSCRIPTIONAL COACTIVATOR;
D O I
10.1016/j.mce.2010.01.033
中图分类号
Q2 [细胞生物学];
学科分类号
071009 ; 090102 ;
摘要
The zinc-finger protein Zac1 has a role as transcription factor and coregulator and plays an important role in pituitary development, maturation and tumorigenesis. Zac1 target genes control cell proliferation and hormone synthesis. While Zac1 is highly expressed in all hormone-producing cells of the pituitary, loss of expression frequently occurs in pituitary adenomas, in particular in non-functioning tumors. Zac1 lies downstream to the mitogenic MAPK and survival PI3K pathways. In turn, inhibition of the PI3K pathway by therapeutic agents, like somatostatin analogs up-regulate Zac1 expression. In fact Zac1 is an essential mediator of the antiproliferative effects of this treatment and correlates to successful outcome in acromegalic patients. (C) 2010 Elsevier Ireland Ltd. All rights reserved.
引用
收藏
页码:60 / 65
页数:6
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