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Purpose

HO-1 has been proved to be associated with tumor aggressivity and poor prognosis in various cancers. Our study provides the first study to demonstrate the relationship of HO-1 expression and clinical characteristics in ovarian cancer patients.

Methods

Immunohistochemistry and western blotting were used to examine the expression of HO-1 in tissue species and fresh tissues. CCK-8 was used to investigate cell viability. Transwell chamber was performed to estimate migration and invasion capacities in A2780 and Skov-3 cells.

Results

Immunohistochemistry and western blotting showed that the expression of HO-1 was higher in ovarian cancer tissues than normal ovarian tissues. High expression of HO-1 was significantly associated with serous ovarian cancer, high FIGO stage, lymph node metastasis, and non-optimal debulking. Patients with high expression of HO-1 exhibited an unfavorable prognosis. In vitro inducing the expression of HO-1 promoted the proliferation and metastasis of A2780 and Skov-3 cells, with the increased expressions of mesenchymal marker (Vimentin), epithelial-mesenchymal transition-associated transcript factor (Zeb-1), anti-apoptotic protein (Bcl-2), and the decreased expressions of epithelial marker (Keratin) and pro-apoptotic protein (Bax). Meanwhile, after incubating A2780 and Skov-3 together with HO-1 inhibitor, above results could be reversed.

Conclusion

HO-1 might be a potential marker for prediction of ovarian cancer prognosis and a target for ovarian cancer treatment."xsd:string
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http://purl.uniprot.org/citations/28808929http://purl.uniprot.org/core/author"Zhao Z."xsd:string
http://purl.uniprot.org/citations/28808929http://purl.uniprot.org/core/author"Xue J."xsd:string
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http://purl.uniprot.org/citations/28808929http://purl.uniprot.org/core/title"High expression of HO-1 predicts poor prognosis of ovarian cancer patients and promotes proliferation and aggressiveness of ovarian cancer cells."xsd:string
http://purl.uniprot.org/citations/28808929http://purl.uniprot.org/core/volume"20"xsd:string
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