Abstract
Insulin-like growth factor I is an autocrine/paracrine factor for vascular smooth muscle cells and is required for angiotensin II- and thrombin-induced mitogenesis. The insulin-like growth factor I-triggered signaling pathway involves autophosphorylation of the β-subunit of its tyrosine kinase receptor and phosphorylation of insulin receptor substrate-1, the latter providing binding sites for proteins with src homology-2 domains. In rat aortic smooth muscle cells we observed that both angiotensin II and thrombin induced rapid tyrosine phosphorylation of insulin receptor substrate-1. Our results also demonstrated that these mitogens rapidly stimulated phosphorylation of the insulin-like growth factor I receptor β-chain. These data demonstrate a novel interaction between the G-protein coupled angiotensin II and thrombin receptors and the tyrosine-kinase insulin-like growth factor I receptor.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 934-939 |
| Number of pages | 6 |
| Journal | Biochemical and Biophysical Research Communications |
| Volume | 218 |
| Issue number | 3 |
| DOIs | |
| State | Published - Jan 26 1996 |
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ASJC Scopus subject areas
- Biophysics
- Biochemistry
- Molecular Biology
- Cell Biology
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G-protein and tyrosine kinase receptor cross-talk in rat aortic smooth muscle cells : Thrombin- and angiotensin II-induced tyrosine phosphorylation of insulin receptor substrate-1 and insulin-like growth factor 1 receptor. / Du, Jie; Sperling, Laurence S.; Marrero, Mario B.; Phillips, Liz; Delafontaine, Patrick.
In: Biochemical and Biophysical Research Communications, Vol. 218, No. 3, 26.01.1996, p. 934-939.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - G-protein and tyrosine kinase receptor cross-talk in rat aortic smooth muscle cells
T2 - Thrombin- and angiotensin II-induced tyrosine phosphorylation of insulin receptor substrate-1 and insulin-like growth factor 1 receptor
AU - Du, Jie
AU - Sperling, Laurence S.
AU - Marrero, Mario B.
AU - Phillips, Liz
AU - Delafontaine, Patrick
PY - 1996/1/26
Y1 - 1996/1/26
N2 - Insulin-like growth factor I is an autocrine/paracrine factor for vascular smooth muscle cells and is required for angiotensin II- and thrombin-induced mitogenesis. The insulin-like growth factor I-triggered signaling pathway involves autophosphorylation of the β-subunit of its tyrosine kinase receptor and phosphorylation of insulin receptor substrate-1, the latter providing binding sites for proteins with src homology-2 domains. In rat aortic smooth muscle cells we observed that both angiotensin II and thrombin induced rapid tyrosine phosphorylation of insulin receptor substrate-1. Our results also demonstrated that these mitogens rapidly stimulated phosphorylation of the insulin-like growth factor I receptor β-chain. These data demonstrate a novel interaction between the G-protein coupled angiotensin II and thrombin receptors and the tyrosine-kinase insulin-like growth factor I receptor.
AB - Insulin-like growth factor I is an autocrine/paracrine factor for vascular smooth muscle cells and is required for angiotensin II- and thrombin-induced mitogenesis. The insulin-like growth factor I-triggered signaling pathway involves autophosphorylation of the β-subunit of its tyrosine kinase receptor and phosphorylation of insulin receptor substrate-1, the latter providing binding sites for proteins with src homology-2 domains. In rat aortic smooth muscle cells we observed that both angiotensin II and thrombin induced rapid tyrosine phosphorylation of insulin receptor substrate-1. Our results also demonstrated that these mitogens rapidly stimulated phosphorylation of the insulin-like growth factor I receptor β-chain. These data demonstrate a novel interaction between the G-protein coupled angiotensin II and thrombin receptors and the tyrosine-kinase insulin-like growth factor I receptor.
UR - http://www.scopus.com/inward/record.url?scp=0030058802&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0030058802&partnerID=8YFLogxK
U2 - 10.1006/bbrc.1996.0165
DO - 10.1006/bbrc.1996.0165
M3 - Article
C2 - 8579617
AN - SCOPUS:0030058802
VL - 218
SP - 934
EP - 939
JO - Biochemical and Biophysical Research Communications
JF - Biochemical and Biophysical Research Communications
SN - 0006-291X
IS - 3
ER -