alexa Correlation between clinicopathology and expression of heat shock protein 70 and glucose-regulated protein 94 in human colonic adenocarcinoma.
Oncology

Oncology

Journal of Carcinogenesis & Mutagenesis

Author(s): Wang XP, Qiu FR, Liu GZ, Chen RF

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Abstract AIM: To investigate the correlation between clinicopathology and expression of heat shock protein 70 (HSP70) and glucose-regulated protein 94 (grp94) in human colonic carcinoma. METHODS: The expression of HSP70 and grp94 was studied in 80 human colonic cancers with or without metastasis as well as in their adjacent mucous membrane by way of immunohistochemistry and pathology photograph analysis. RESULTS: The expression of HSP70 and grp94 was significantly higher in cancer than that in adjacent mucous membrane (92.5\%, 85.0\% vs 56.3\%, 42.5\%, P<0.01). HSP70 and grp94 expressed higher in moderately- and poorly-differentiated colonic cancers than that in their adjacent tissues (93.7\%, 87.5\%; 100\%, 90\% vs 56.3\%, 42.5\%; P<0.01). Dukes C and D stages of colonic cancers showed higher positive rates than Dukes A and B stage groups (97.1\%, 91.2\%; 100\%, 90.9\%; vs 80\%, 70\%; 78.6\%, 71.4\%; P<0.05). There were definite differences in HSP70 and grp94 expression between metastasis groups and non-metastasis groups (100\% vs 75\%, 100\% vs 50\%, P<0.05). CONCLUSION: The HSP70 and grp94 expression rates in colonic cancer groups are significantly higher than that in their adjacent mucous membrane. The HSP70 and grp94 expression in poorly-differentiated colonic cancers with metastasis is significantly higher than well-differentiated cancers without metastasis. The overexpression of HSP70 and grp94 can be used as diagnostic or prognostic markers for colonic cancer.
This article was published in World J Gastroenterol and referenced in Journal of Carcinogenesis & Mutagenesis

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