Effect of a Seashell Protein Haishengsu on Cell Growth and Expression of Apoptosis Genes in Leukemia K562 Cells

Guang-Yao Li, Ji-Zhu Liu, Xiao-Min Yu Yu, Shuang-Feng Chen, Bin Zhang, Wei-Feng Zhang, Tai-Wu Xiao, Chun- Bo Wang, Lexin Wang

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Abstract

Objectives: This study was designed to investigate the effect of a seashell protein Haishengsu (HSS), an extract from a shellfish Tegillarca granosa, on cell growth and the expression of apoptosis genes in leukemia K562 cells.Methods: Cultured K562 cells were treated with HSS at various concentrations (10-40mg/L). The cell cycle, cell growth and the expression of apoptosis suppressor gene bcl-2 and apoptosis promoting gene bax was evaluated.Results: HSS (20mg/L) inhibited cell cycle in the G0/G1 and S phases. HSS (20mg/L) also inhibited the growth of K562 cells over time. The expression of bcl-2 gene in the HSS 20mg/L (58.8%±4.7%) and HSS 40mg/L group (26.6%±2.1%) was lower than in the control group (91.0±8.7%, P<0.01). The expression of bax gene in the HSS 20mg/L (77.7±3.6%) and 40mg/L group (90.6±3.7%) was higher than in the control group (10.9±6.6%, P<0.01).Conclusion: HSS suppresses leukemia K562 cell growth by inhibiting the G0/G1 and S phases of the cell cycle. It also induces apoptosis in these leukemia cells by reducing the expression of apoptosis suppressor gene bcl-2, and increasing the expression of apoptosis promoting gene bax. Further studies are required to investigate the clinical efficacy of HSS on leukemia.
Original languageEnglish
Pages (from-to)E218-E221
JournalClinical and Investigative Medicine
Volume31
Issue number4
Publication statusPublished - 2008

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    Li, G-Y., Liu, J-Z., Yu, X-M. Y., Chen, S-F., Zhang, B., Zhang, W-F., Xiao, T-W., Wang, C. B., & Wang, L. (2008). Effect of a Seashell Protein Haishengsu on Cell Growth and Expression of Apoptosis Genes in Leukemia K562 Cells. Clinical and Investigative Medicine, 31(4), E218-E221.