Title : Insulin-like growth factor-I induces reactive oxygen species production and cell migration through Nox4 and Rac1 in vascular smooth muscle cells.

Pub. Date : 2008 Nov 1

PMID : 18567639






10 Functional Relationships(s)
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1 Insulin-like growth factor-I induces reactive oxygen species production and cell migration through Nox4 and Rac1 in vascular smooth muscle cells. Reactive Oxygen Species insulin-like growth factor 1 Rattus norvegicus
2 AIMS: We showed previously that insulin-like growth factor-I (IGF-I)-induced vascular smooth muscle cells (VSMCs) proliferation through the production of reactive oxygen species (ROS). Reactive Oxygen Species insulin-like growth factor 1 Rattus norvegicus
3 AIMS: We showed previously that insulin-like growth factor-I (IGF-I)-induced vascular smooth muscle cells (VSMCs) proliferation through the production of reactive oxygen species (ROS). Reactive Oxygen Species insulin-like growth factor 1 Rattus norvegicus
4 AIMS: We showed previously that insulin-like growth factor-I (IGF-I)-induced vascular smooth muscle cells (VSMCs) proliferation through the production of reactive oxygen species (ROS). Reactive Oxygen Species insulin-like growth factor 1 Rattus norvegicus
5 AIMS: We showed previously that insulin-like growth factor-I (IGF-I)-induced vascular smooth muscle cells (VSMCs) proliferation through the production of reactive oxygen species (ROS). Reactive Oxygen Species insulin-like growth factor 1 Rattus norvegicus
6 However, how IGF-I-induced ROS was unknown. Reactive Oxygen Species insulin-like growth factor 1 Rattus norvegicus
7 The aim of this study is to investigate the mechanisms by which IGF-I induces ROS production in VSMCs. Reactive Oxygen Species insulin-like growth factor 1 Rattus norvegicus
8 VSMCs from Sprague-Dawley rat thoracic aortas were used in this work.IGF-I enhanced ROS production in rat VSMCs. Reactive Oxygen Species insulin-like growth factor 1 Rattus norvegicus
9 Either knockdown of Nox4 or inactivation of Rac1 impaired IGF-I-induced ROS. Reactive Oxygen Species insulin-like growth factor 1 Rattus norvegicus
10 CONCLUSION: Our results suggest that Nox4 and Rac1 mediate IGF-I-induced ROS production and cell migration in VSMCs and that Nox4 is not regulated by Rac1. Reactive Oxygen Species insulin-like growth factor 1 Rattus norvegicus