Variation of ADAMTS-2 Gene Expression in Hypoxic Conditions in Different Cell Lines

ADAMTS (A Disintegrin And Metalloproteinase with Trombospondin Motifs) is involved in pathological events such as cancer, fibrosis, musculoskeletal disorders, inflamation as well as physiological events such as tissue reorganization, matrix building and destruction. 19 members of the ADAMTS family have been identified and grouped according to many characteristics. The important features of ADAMTS2 is processing the amino ends of the collagen and also has an anti-angiogenic activity. Hypoxic regulation is a process that affects the expression of many genes at the cellular level. Hypoxia activates many genes, mainly HIF-1 transcription factor which is responsible for detecting changes in cellular oxygen concentration and for generating responses. For the first time, the hypoxic regulation of ADAMTS2 gene was studied and the variation in hypoxic conditions was determined at the mRNA level using different cell lines. We evaluated the effects of hypoxia in the expression level of ADAMTS-2 in different cell lines namely; Saos-2, MG-63 (bone carcinoma), PC-3, DU-145 (prostate carcinoma), MCF-7 (breast carcinoma), HT29, Colo-205 (colon carcinoma), MKN-45 (gastric carcinoma), Panc-1, Mia PaCa-2 (pancreatic carcinoma), K-562 (chronic myeloid leukemia cell) and HUVEC (umbilical vein endothelial cell). We found the most expression level in MG-63. Mia PaCa-2 and K-562 cells were not expressed detectable level of ADAMTS-2. A chemical hypoxic model was constructed and the level of ADAMTS2 mRNA was examined. It has been determined that ADAMTS2 mRNA level is increased in hypoxia in DU-145, PC-3, HT-29, MCF-7 and Saos-2 cells. The highest hypoxic response was observed in Saos-2 and MCF-7 cells