Insulin receptor substrates (IRSs) and breast tumorigenesis.
Insulin receptor substrates (IRSs) and breast tumorigenesis.
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DOI：
10.1007/s10911-008-9101-9
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发表时间：
2008-12
影响因子：
2.5
通讯作者：
Lee, Adrian V.
中科院分区：
文献类型：
--
作者：
Chan, Bonita Tak-Yee;Lee, Adrian V.
关键词：
Insulin receptor substrate (IRS)-1 and IRS-2 are adaptor proteins in the insulin-like growth factor I (IGF-I)/IGF-I receptor (IGF-IR) pathway that mediate cell proliferation, migration, and survival. In addition to their role as scaffolding proteins in the cytoplasm, they are able to translocate into the nucleus and regulate gene transcription. IRS levels are developmentally and hormonally regulated in the normal mammary gland and both are essential for normal mammary gland bud formation and lactation. Both IRS-1 and IRS-2 are transforming oncogenes, and induce transformation and metastasis in vitro and in vivo. In breast cancer IRSs have unique functions, with IRS-1 being mainly involved in cell proliferation and survival, whereas IRS-2 has clear roles in cell migration and metastasis. In this review we will discuss the roles of IRSs in mammary gland development and breast cancer.
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