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Iranian Journal of Pathology، جلد ۱۷، شماره ۳، صفحات ۲۵۱-۲۶۰
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عنوان انگلیسی SNHG6 203 RNA May be Involved in the Cell Cycle Progression in HER2-Negative Breast Cancer Cells
چکیده انگلیسی مقاله Background & Objective: Long noncoding RNAs (lncRNAs) as challenging molecules are more known compared to those in the  last decade. These transcripts have been validated for carcinogenesis in many types of tissue. Functions of lncRNAs in cancer induction include cell cycle, epithelial to mesenchymal transition progression, apoptosis inhibition, cell migration, and invasion stimulation . LncRNA small nucleolar host (SNHG6) have been proven as an oncogenic transcript in many types of cancer.
Methods: RNA extraction was performed for 47 breast specimens in patients with cancer  and cDNAs were synthesized. Relative expression of target variants was determined by qPCR and calculated based on the ΔΔCt method. SNHG6 203 was cloned into pcDNA 3.1+ vector for overexpression in MCF7 (HER2-) and SK-BR3 (HER2+) cells. The cell cycle progression of transfected cells was assessed by flow cytometry. Cell migration ability of transfected cells was evaluated by the scratch method and Image J software. Finally, cell viability was assessed by the MTT method.
Results: Among four splice variants of SNHG6 (202, 203, 204, and 207), SNHG6 203 was proved as an overexpressed splice variant in breast cancer tumors. This transcript was expressed in HER2-negative breast tumors more frequently than in the positive ones. Overexpression of this variant in target cells resulted in cell cycle progression of MCF7 as HER2-negative cells. Moreover, the overexpression of SNHG6 203 led to a lower migration ability of MCF7 cells and a non-significant reduction of their viability as HER2-negative breast cancer cells.
کلیدواژه‌های انگلیسی مقاله Breast Neoplasm,Cell cycle,lncRNA
نویسندگان مقاله Amin Jafari Oliayi |
Pathology and Stem Cell Research Center, Department of Pathology, Afzalipour Medical School, Kerman University of Medical Sciences, Kerman, Iran

Shahriar Dabiri |
Pathology and Stem Cell Research Center, Department of Pathology, Afzalipour Medical School, Kerman University of Medical Sciences, Kerman, Iran

نشانی اینترنتی https://ijp.iranpath.org/article_254055_cd7fd21c372e0cde78e19cd7fab7019c.pdf
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