DOI: 10.29233/sdufeffd.1395816 ISSN: 1306-7575

Effectiveness of a Novel CTGF LNA GapmeR Sequence in Gastric Cancer Cells

Deniz Sezlev Bilecen
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Gastric cancer is the third most common cause of malignancy worldwide and the prognosis is poor due to drug resistance and molecular diversity of the disease. Therefore, development of novel therapies is required. Connective Tissue Growth Factor (CTGF) is involved in the extracellular matrix production, cell proliferation and migration which makes it a target for the treatment of disease. Nucleic acid-based therapies are used to reduce the expression of specific mRNA sequences. The purpose of this study was to reduce the migration, and proliferation of gastric cancer cells through the inhibition of CTGF expression. On this purpose, a novel locked nucleic acid GapmeR sequence was identified as an inhibitor of CTGF expression, and the effectiveness of the sequence was shown in the gastric cancer cells. The gastric adenocarcinoma cells were transfected with GapmeR and changes in gene expressions of CTGF and collagen type I (COL1A1) were studied by qRT-PCR. The CTGF protein levels and proliferation were studied by Western Blot analysis and Alamar Blue Assay. The sequence caused significant reductions in CTGF and COL1A1 mRNA levels and proliferation of cells. These results might lead to the development of delivery system towards gastric cancer cells by using this sequence.

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