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Effects of cyclin D1 antisense oligodeoxyneucleotides on the growth and expression of G1 phase regulators in gastric carcinoma cells

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Summary

To investigate the effects of Cyclin D1 antisense oligodeoxyneucleotides (ASODN) on the growth, cell cycle progression and expression of G1 phase regulators in human gastric carcinoma cell lines SGC7901 and HS746T, phosphorothioate-modified Cyclin D1 ASODN were encapsulated by Lipofect AMINE2000 and transfected into gastric carcinoma cells. Dose-dependent inhibitory effects were induced by Cyclin D1 ASODN in two gastric carcinoma cell lines. Treatment of gastric carcinoma cells with 0.2 μmol/L CycliN D1 ASODN for 24 h could significantly inhibit their growthin vitro andin vivo, reduce expression of Cyclin D1mRNA to 26.3% (SGC7901) and 17.3% (HS746T) respectively. The percentage of cells in G0/G1 phase was increased as revealed by flow cytometry. Immunohistochemical staining showed that the expression of p21 was increased and the expression of Cyclin D1 and pRb was decreased in the two cell lines; the expression of p27 was increased in HS746T, but unchanged in SGC7901. Cyclin D1 ASODN could inhibit the growth and the expression of Cyclin D1 mRNA in gastric carcinoma cells, influence the cell cycle and expression of its regulators.

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Authors and Affiliations

  1. Department of General Surgery, Xiehe Hospital, Tongji Medical Collage, Huazhong University of Science and Technology University, 430022, Wuhan

    Shuai Xiaoming, Han Gaoxiong & Wang Guobin

Authors
  1. Shuai Xiaoming
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  2. Han Gaoxiong
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  3. Wang Guobin
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SHUAI Xiaoming, male, born in 1972, Doctor in Charge

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Xiaoming, S., Gaoxiong, H. & Guobin, W. Effects of cyclin D1 antisense oligodeoxyneucleotides on the growth and expression of G1 phase regulators in gastric carcinoma cells. Current Medical Science 23, 396–398 (2003). https://doi.org/10.1007/BF02829427

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  • DOI: https://doi.org/10.1007/BF02829427

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