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Overexpression of HSP27 and HSP70 is associated with decreased survival among patients with esophageal adenocarcinoma

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World Journal of Clinical Cases 2019年第3期7卷 260-269页

作者： Henna K S?derstr?m Juha T Kauppi Niku Oksala timo paavonen Leena Krogerus Jari R?s?nen Tuomo Rantanen Department of General Thoracic Surgery Helsinki University Central Hospital Faculty of Medicine and Life Sciences University of Tampere Department of Vascular Surgery Tampere University Hospital Department of Pathology Fimlab Laboratories and Department of Medicine and Life Sciences University of Tampere Department of Pathology Helsinki University Central Hospital Department of Surgery Kuopio University Hospital Department of Surgery Institute of Clinical Medicine University of Eastern Finland

BACKGROUND Overexpression of heat shock proteins(HSPs) is associated with several malignancies and contributes to the development, progression, and metastasis of cancer, in addition to the inhibition of cellular death. In recent years, there has been active research into using HSP inhibitors in several malignancies. Due to the poor prognosis of esophageal adenocarcinoma(EAC), it would be valuable to find new biomarkers for the development of cancer *** To evaluate the expressions of HSP27 and HSP70 and their effect on survival in *** Immunohistochemical analyses and evaluations of HSP27 and HSP70 expression were performed on all available samples from 93 patients diagnosed with EACbetween 1990 and 2007 at two university hospitals. Fifteen cases with Barrett's metaplasia and 5 control cases from the same patient population were included in the analysis. HSP expression was quantitatively assessed and classified as high or low. Kaplan-Meier analyses and Cox regression models adjusting for age and sex as well as tumor site, stage, and grade were used to evaluate the effect on *** Tumor stage and surgical treatment were the main prognostic factors. High HSP27 expression in cancer cases was a strong negative predictive factor, with a mean survival of 23 mo compared to the 49 mo in cases with a low expression(P= 0.018). The results were similar for HSP70, with a poorer survival of 17 mo in cases with high HSP70 expression, in contrast to 40 mo(P = 0.006) in cases with a low expression. A Cox regression survival analysis was performed, adjusting for possible confounding factors, and higher HSP27 and HSP70 expressions remained an independent negative prognostic factor. The HSPs' correlation with survival was not affected by cancer treatments. When the analysis was adjusted for all factors, the odds ratios for HSP27 and HSP70 were 3.3(CI: 1.6–6.6, P =0.001) and 2.2(CI: 1.2–3.9, P = 0.02), *** HSP27 and HSP70 overexpression i

关键词： Esophageal adenocarcinoma Heat shock proteins Heat shock protein 27 Heat shock protein 70 Overexpression Survival

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