Induction of Matrix Metalloproteinase 9 Expression in Breast Carcinoma Cells by a Soluble Factor from Fibroblasts
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Tumor-stromal interactions appear to play an important role in the induction of metalloproteinase expression in malignant tumors. We describe a tissue culture system in which expression of MMP-9 (gelatinase B or the 92 kDa type IV collagenase/gelatinase) was induced by co-cultivation of fibroblasts with breast cancer cell lines. While neither the breast cancer cells nor the normal rat embryo fibroblasts made MMP-9 alone in culture, human MMP-9 was made in the co-cultures. The MMP-9 was secreted in a latent form. The induction occurred at least in part through increases in the MMP-9 mRNA levels in the breast cancer cells. These increases did not appear to require protein synthesis. Conditioned medium from the fibroblasts could duplicate the induction of MMP-9 in the breast cancer cell lines. The active factor in the medium was inactivated by heat or by trypsin suggesting that it was a protein. This protein was in the size range of 30-100 kDa. Thus, fibroblasts could secrete a factor which was able to regulate the expression of MMP-9 in breast cancer cells.
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Jacobson J, Qiao J, Cochran E, McCreery S, Chung D Front Oncol. 2024; 14:1336031.
PMID: 38884093 PMC: 11176429. DOI: 10.3389/fonc.2024.1336031.
Recruitment and retention: factors that affect pericyte migration.
Aguilera K, Brekken R Cell Mol Life Sci. 2013; 71(2):299-309.
PMID: 23912898 PMC: 3880607. DOI: 10.1007/s00018-013-1432-z.
Batra J, Robinson J, Mehner C, Hockla A, Miller E, Radisky D PLoS One. 2012; 7(11):e50028.
PMID: 23185522 PMC: 3502186. DOI: 10.1371/journal.pone.0050028.
Mc Donnell S, Chaudhry V, Zeng Z, Shu W, Guillem J Clin Exp Metastasis. 1999; 17(4):341-9.
PMID: 10545021 DOI: 10.1023/a:1006651019335.
Significance of membrane type 1 matrix metalloproteinase expression in breast cancer.
Ishigaki S, Toi M, Ueno T, Matsumoto H, Muta M, Koike M Jpn J Cancer Res. 1999; 90(5):516-22.
PMID: 10391091 PMC: 5926108. DOI: 10.1111/j.1349-7006.1999.tb00778.x.