期刊
PEDIATRIC NEPHROLOGY
卷 25, 期 4, 页码 651-658出版社
SPRINGER
DOI: 10.1007/s00467-009-1258-y
关键词
Growth hormone; GH; Growth regulation; Insulin-like growth factor-I; IGF-I; Stat; Stat5b; Gene transcription
资金
- NIDDK NIH HHS [K08 DK077897, R01 DK069703] Funding Source: Medline
Since the somatomedin hypothesis of growth hormone (GH) action was first formulated more than 50 years ago, the key roles of both GH and insulin-like growth factor-I (IGF-I) in human growth have been extended to include important effects on tissue maintenance and repair. More recent observations have revealed that this pathway has a negative side, as it has been implicated as a potential contributor to the development of several human cancers and has been linked to diminished lifespan in experimental animals. This brief review focuses on fundamental aspects of gene regulation by GH, as long-term hormonal effects all require changes in gene expression. Topics to be discussed include GH-stimulated signal transduction pathways, mechanisms of gene activation and gene repression by GH, and an analysis of control of IGF-I gene transcription by the GH-stimulated transcription factor, signal transducer and activator of transcription (Stat)5b.
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