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GnRH-(1-5) activates matrix metallopeptidase-9 to release epidermal growth factor and promote cellular invasion.

Abstract：

:In the extracellular space, the gonadotropin-releasing hormone (GnRH) is metabolized by the zinc metalloendopeptidase EC3.4.24.15 (EP24.15) to form the pentapeptide, GnRH-(1-5). GnRH-(1-5) diverges in function and mechanism of action from GnRH in the brain and periphery. GnRH-(1-5) acts on the orphan G protein-coupled receptor 101 (GPR101) to sequentially stimulate epidermal growth factor (EGF) release, phosphorylate the EGF receptor (EGFR), and facilitate cellular migration. These GnRH-(1-5) actions are dependent on matrix metallopeptidase (MMP) activity. Here, we demonstrated that these GnRH-(1-5) effects are dependent on increased MMP-9 enzymatic activity in the Ishikawa and ECC-1 cell lines. Furthermore, the effects of GnRH-(1-5) mediated by GPR101 and the subsequent increase in MMP-9 enzymatic activity lead to an increase in cellular invasion. These results suggest that GnRH-(1-5) and GPR101 regulation of MMP-9 may have physiological relevance in the metastatic potential of endometrial cancer cells.

journal_name

Mol Cell Endocrinol

journal_title

Molecular and cellular endocrinology

authors

Cho-Clark M,Larco DO,Zahn BR,Mani SK,Wu TJ

doi

10.1016/j.mce.2015.08.010

subject

Has Abstract

pub_date

2015-11-05 00:00:00

pages

114-25

eissn

0303-7207

issn

1872-8057

pii

S0303-7207(15)30050-2

journal_volume

415

pub_type

杂志文章

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