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ORIGINAL ARTICLE
Year : 2018  |  Volume : 14  |  Issue : 1  |  Page : 208-212

Effects of the Akt inhibitor Src-homology 5 on proliferation and apoptosis of the laryngeal squamous cell carcinoma


1 Department of Otolaryngology, The Second Hospital of Shandong University, Jinan 250000, Shandong Province, China
2 Department of Health, The Second Hospital of Shandong University, Jinan 250000, Shandong Province, China

Correspondence Address:
Dr. Tao Jia
Department of Otolaryngology, The Second Hospital of Shandong University, No. 247 Beiyuan Avenue, Jinan 250000, Shandong Province
China
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0973-1482.199454

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Objective: The aim of this study was to investigate the effect of the Akt inhibitor Src-homology 5 (SH-5) on the proliferation and apoptosis of laryngeal squamous cell carcinoma cells (LSCC; Hep-2 cells) and to elucidate the possible mechanisms of such effects. Materials and Methods: Hep-2 cells were treated with different concentrations of the Akt inhibitor SH-5. The inhibitory effect of SH-5 on cell proliferation was examined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, whereas apoptosis was detected by flow cytometric based on Annexin V/propidium iodide (PI) staining. In addition, the expression level of Akt protein was evaluated by Western blot analysis. Results: MTT assay results revealed that SH-5 inhibited the proliferation of Hep-2 cells, with its greatest effect being observed at 2 μM. Apoptosis of Hep-2 cells increased following treatment with SH-5. Treatment of Hep-2 cells with SH-5 decreased the expression of Akt, and this effect was statistically significantly when compared with that in controls (P < 0.05). Conclusion: SH-5 inhibited proliferation and induced apoptosis in the LSCC cell line Hep-2. These effects may be caused by inhibition of the phosphoinositide 3-kinase-Akt signaling pathway. We believe that our data will provide useful insights into LSCC target treatment and future research.


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