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Published in: Journal of Ovarian Research 1/2019

Open Access 01-12-2019 | Ovarian Cancer | Research

Postoperative recurrence of epithelial ovarian cancer patients and chemoresistance related protein analyses

Authors: Zhengmao Zhang, Kaiyun Qin, Wenzhe Zhang, Botao Yang, Chen Zhao, Xiaojing Zhang, Fenghua Zhang, Lianmei Zhao, Baoen Shan

Published in: Journal of Ovarian Research | Issue 1/2019

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Abstract

Objective

To identify the plasma protein biomarkers related to the chemoresistance of postoperative recurrence of epithelial ovarian cancers.

Methods

Forty plasma samples from patients in chemotherapy-sensitive and chemotherapy-resistant groups (20 for each group) were collected at Gynecology Department in the Fourth Hospital of Hebei Medical University from September 2013 to September 2014. The differentially expressed proteins between two groups were screened with two-dimensional gel electrophoresis (2-DE) and further analyzed by matrix-assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF–MS).

Results

Thirty-four differentially expressed spots were identified between the two groups. Compared with the chemo-sensitive group, 21 protein spots were up-regulated and 13 were down-regulated in the chemoresistant group, in which 14 differentially expressed proteins were identified by the Mass spectrometry and Mascot search. Among the 14 proteins, complement C4-A, IgJ chain, clusterin, α-1-antitrypsin and carbonic anhydrase 1 were up-regulated, and transthyretin, haptoglobin, β-2-glycoprotein, Ig γ-2 chain C region, Ig γ-1 chain C region, complement factor I light chain, Igκ chain C region, complement C3 and apolipoprotein E were down-regulated in the chemoresistant group when compared with the chemosensitive group.

Conclusion

The up-regulated proteins including transthyretin, apolipoprotein E and haptoglobin proteins and the down-regulated proteins such as clusterin, carbonic anhydrase 1, alpha-1-antitrypsin were differentially expressed in the plasma between the chemo-sensitive group and the chemoresistant group, which may be potential biomarkers for predicting the chemotresistance of epithelial ovarian cancer patients.
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Metadata
Title
Postoperative recurrence of epithelial ovarian cancer patients and chemoresistance related protein analyses
Authors
Zhengmao Zhang
Kaiyun Qin
Wenzhe Zhang
Botao Yang
Chen Zhao
Xiaojing Zhang
Fenghua Zhang
Lianmei Zhao
Baoen Shan
Publication date
01-12-2019
Publisher
BioMed Central
Published in
Journal of Ovarian Research / Issue 1/2019
Electronic ISSN: 1757-2215
DOI
https://doi.org/10.1186/s13048-019-0499-z

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