• Department of General Surgery, The Second Affiliated Hospital of Kunming Medical College, Kunming 650101, China;
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ObjectiveTo study the effects of recombinant human growth hormone (rhGH) on proliferation of human rectal cancer cell in vitro. MethodsThe experiment was divided into control group,rhGH group,Oxaliplatin (LOHP) group and rhGH+LOHP group. The double proliferation time of cells,cell inhibition rate,cell cycle, proliferation index (PI) and DNA inhibition rate of human rectal cancer line,HR8348,were studied by cell culture, MTT assay and flow cytometry on different concentration of rhGH. ResultsIn vitro the markedly accelerated effects of rhGH on multiplication of HR8348 cell line were not found: there was no statistical significance as compared rhGH group with control group or compared rhGH+LOHP group and LOHP group (P gt;0.05). The double proliferation time of cells was markedly lengthened, cell inhibition rate and the cells arrested in G0-G1 phase were obviously increased, meanwhile, the cells in S phase (P<0.05) and G2-M phase and PI were markedly decreased and DNA inhibition rate was obviously risen as compared rhGH+LOHP group with control group or rhGH+LOHP group and rhGH group (P<0.01).Conclusion
In vitro rhGH does not accelerate the multiplication of human rectal cancer cells.

Citation: CHEN Jiayong,GAN Ping,LIANG Daoming,TAN Jing,ZHANG Yi. In Vitro Effects of Recombinant Human Growth Hormone on Proliferation of Human Rectal Cancer Cell Line,HR8348 Cell. CHINESE JOURNAL OF BASES AND CLINICS IN GENERAL SURGERY, 2003, 10(4): 362-365. doi: Copy