Stimulation of matrix metalloproteinase production by recombinant extracellular matrix metalloproteinase inducer from transfected Chinese hamster ovary cells.
Many of the tumor-associated matrix metalloproteinases that are implicated in metastasis are produced by stromal fibroblasts within or surrounding the tumor in response to stimulation by factors produced by tumor cells. In this study we transfected Chinese hamster ovary cells with putative cDNA for human extracellular matrix metalloproteinase inducer (EMMPRIN), a transmembrane glycoprotein that is attached to the surface of many types of malignant human tumor cells and that has previously been implicated in stimulation of matrix metalloproteinase production in fibroblasts. We show that these transfected cells synthesize EMMPRIN that is extensively post-translationally processed; this recombinant EMMPRIN stimulates human fibroblast production of interstitial collagenase, stromelysin-1, and gelatinase A (72-kDa type IV collagenase). We propose that EMMPRIN regulates matrix metalloproteinase production during tumor invasion and other processes involving tissue remodeling.
Guo
H
H
Department of Anatomy and Cellular Biology, Tufts University School of Medicine, Boston, Massachusetts 02111, USA.
Zucker
S
S
Gordon
M K
MK
Toole
B P
BP
Biswas
C
C
D000818:Animals; D015703:Antigens, CD; D000951:Antigens, Neoplasm; D051926:Basigin; D016466:CHO Cells; D017364:Collagenases / Q000378:metabolism*; D006224:Cricetinae; D003412:Cricetulus; D004790:Enzyme Induction; D018093:Gelatinases / Q000378:metabolism*; D006801:Humans; D020781:Matrix Metalloproteinase 1; D020778:Matrix Metalloproteinase 2; D019278:Matrix Metalloproteinase 3 / Q000378:metabolism*; D008562:Membrane Glycoproteins / Q000502:physiology*; D008666:Metalloendopeptidases / Q000378:metabolism*; D011994:Recombinant Proteins; D014162:Transfection
D015703:Antigens, CD; D000951:Antigens, Neoplasm; C497886:BSG protein, human; D008562:Membrane Glycoproteins; D011994:Recombinant Proteins; D051926:Basigin; D017364:Collagenases; D018093:Gelatinases; D008666:Metalloendopeptidases; D019278:Matrix Metalloproteinase 3; D020778:Matrix Metalloproteinase 2; D020781:Matrix Metalloproteinase 1