[Effect of gensenoside Rg3 on apoptosis of Hep-2 and expression of HIF-1alha in human laryngeal cancer cell line under anoxic conditions].
OBJECTIVE
To study the mechanism and effect of gensenoside Rg3 on Hep-2 Cell Line during the normoxia and hypoxia.


METHODS
Hep-2 Human Laryngeal Cancer Cell Line was cultured under anoxic conditions, and set the normal control group and positive control group (DDP). MTT was used to observe the growth inhibition rates of Hep-2 Human Laryngeal Cancer Cell by Rg3; The cell cycle and cell apoptosis analysis were detected by FCM. Then the expression of HIF-1alpha and VEGF protein was detected by immunohistochemistry and FCM; The expression of HIF-1alpha and VEGF mRNA were detected by transcription-polymerase chain reaction (RT-PCR).


RESULTS
Rg3 could significantly inhibit the growth of Hep-2 cells and arrest the cells in G0/G1 phase during normoxia and hypoxia The mRNA and protein expression of HIF-1alpha were dolon-regulated.


CONCLUSIONS
Rg3 can inhibit Hep-2 cells growth by delaying the progress of cell cycle and inhibit the expression of HIF-1alpha during hypoxia, this may be the mechanism of its anti-tumor effect.
Wang
Bao-shan
BS
The First Affiliated Hospital of Hebei Medicine University, Shijiazhuang 050031, China. whsent@126.com
Zhang
Li-sha
LS
Song
Dong-mei
DM
Zhang
Ji-hua
JH
Liu
Yan-mei
YM
D000972:Antineoplastic Agents, Phytogenic / Q000494:pharmacology*; D017209:Apoptosis / Q000187:drug effects*; D002294:Carcinoma, Squamous Cell / Q000378:metabolism / Q000473:pathology; D002453:Cell Cycle / Q000187:drug effects; D015687:Cell Hypoxia; D045744:Cell Line, Tumor; D002945:Cisplatin / Q000494:pharmacology; D004305:Dose-Response Relationship, Drug; D005434:Flow Cytometry; D036145:Ginsenosides / Q000494:pharmacology*; D006801:Humans; D051795:Hypoxia-Inducible Factor 1, alpha Subunit / Q000378:metabolism*; D007150:Immunohistochemistry; D007822:Laryngeal Neoplasms / Q000378:metabolism / Q000473:pathology; D005894:Panax / Q000737:chemistry*; D012333:RNA, Messenger / Q000378:metabolism; D020133:Reverse Transcriptase Polymerase Chain Reaction
D000972:Antineoplastic Agents, Phytogenic; D036145:Ginsenosides; D051795:Hypoxia-Inducible Factor 1, alpha Subunit; D012333:RNA, Messenger; C097367:ginsenoside Rg3; D002945:Cisplatin