【摘 要】
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AIM: To investigate the co-expression and significance of heat shock protein 70 (HSP70) and glucose-regulatedprotein 94 (grp94) in human gastric carcinoma cell
【机 构】
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Department of Pathology,Laboratory of Morphology
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AIM: To investigate the co-expression and significance of heat shock protein 70 (HSP70) and glucose-regulatedprotein 94 (grp94) in human gastric carcinoma cell line BGC-823.METHODS: The expression and localization of HSP70 and grp94 in human gastric carcinoma cell line BGC-823 were determined by immunocytochemistry and indirect immunofiuorescence cytochemical staining. Flow cytometry was used to analyze the correlation between expression of HSP70, grpg4 and cell cycle in BGC-823 cell line.RESULTS: Gastric cancer cell line BGC-823 expressed high level of HSP70 and grp94. The positive rate of HSP70 and grp94 was 84.9±4.94% and 79.6±5.16%, respectively. Bothof them were stained in cell plasma. There was a significant difference compared with control group (1.9±0.94%,P＜0.01). During the cell cycle, HSP70 and grp94 were continuously expressed in BGC-823.CONCLUSION: HSP70 and grp94 are highly expressed in human gastric carcinoma BGC-823 cells through the whole cell cycle. There is no relationship between expression of HSP70, grp94 and cell cycle.
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