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Published in: Archives of Gynecology and Obstetrics 6/2019

01-06-2019 | Metastasis | Images in Obstetrics and Gynecology

Blockade pf CD73/adenosine axis improves the therapeutic efficacy of docetaxel in epithelial ovarian cancer

Authors: Hongmei Li, Meihua Lv, Baohua Qiao, Xia Li

Published in: Archives of Gynecology and Obstetrics | Issue 6/2019

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Abstract

Background

Epithelial ovarian cancer (EOC) is the most common and lethal ovarian cancer which threatens women health. Nowadays, the standard treatment is maximal cytoreductive surgical debulking followed by chemotherapy. However, immunosuppressive environment generated by chemotherapy, which can be reversed by immunotherapy, leads to the failure of standard treatment. Therefore, a combination of chemotherapy and immunotherapy will be a promising strategy for EOC patients.

Method

For in vitro study, CD73 expression, CD73 activity, and CD8+ T-cell proliferation were measured after docetaxel (DTXL) treatment with or without CD73 antibody. For in vivo study, tumor growth, tumor weight, and the population of various immune cells in the tumor were analyzed in different drug treatment groups.

Results

DTXL can increase both the CD73 expression and enzymatic activity in patient-derived epithelial cell and ID8 cell while causing immunosuppressive response which was reversed by anti-CD73 antibody (aCD73). Moreover, tumor growth and lung metastasis in mouse were significantly diminished after DTXL + aCD73 treatment.

Conclusion

Blocking CD73/adenosine pathway could reverse the immunosuppression caused by DTXL, and a combination of DTXL with CD73 inhibitor or anti-CD73 antibody would be a more effective and promising therapy for EOC.
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Metadata
Title
Blockade pf CD73/adenosine axis improves the therapeutic efficacy of docetaxel in epithelial ovarian cancer
Authors
Hongmei Li
Meihua Lv
Baohua Qiao
Xia Li
Publication date
01-06-2019
Publisher
Springer Berlin Heidelberg
Published in
Archives of Gynecology and Obstetrics / Issue 6/2019
Print ISSN: 0932-0067
Electronic ISSN: 1432-0711
DOI
https://doi.org/10.1007/s00404-019-05139-3

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