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Adipocytokines and their relationship to endometrial cancer risk: a systematic review and meta-analysis.

Ellis, Patricia E.; Barron, Gemma A.; Bermano, Giovanna


Patricia E. Ellis


Objective:- To investigate the association between circulating levels of adipocytokines (adiponectin, leptin, tumour necrosis factor alpha (TNFα), interleukin 6 (IL-6)) and growth factors (insulin-like growth factor I (IGF-I) and II (IGF-II)), and the risk of endometrial cancer. Methods:- Cochrane, CINAHL, Embase, Medline and Web of Science were searched for English-language manuscripts published between January 2000 and August 2018 using the following string of words: cancer and endometrial and (obesity or BMI) and (adiponectin or TNF* or IGF-I or IGF-II or IL-6 or leptin). Results:- Twenty articles were included in this meta-analysis, which corresponded to 18 studies involving 2921 endometrial carcinoma cases and 5302 controls. Fourteen articles reported circulating levels for adiponectin, seven for leptin, three for TNFα, three for IL-6 and one for IGF- I. No article reported values for IGF- II. Patients with circulating adiponectin levels in the highest tertile had decreased endometrial cancer risk compared to women with levels in the lowest tertile, (summary of odds ratio (SOR) 0.51, 95% CI: 0.38-0.69, p[less than]0.00001). Women with circulating leptin concentrations in the highest tertile had increased endometrial cancer risk compared to women with concentrations in the lowest tertile (SOR 2.19, 95% CI: 1.45-3.30, p=0.0002). There was no difference in cancer risk between participants with the highest TNFα and IL-6 levels compared to the lowest levels (SOR 1.27, 95% CI: 0.88-1.83, p=0.20 and SOR 1.20, 95% CI: 0.89-1.63, p=0.23, respectively). Conclusions:- Endometrial cancer risk is inversely affected by adiponectin and leptin levels. There appears to be no relationship between TNF-α and IL- 6 and the overall risk of endometrial cancer.


ELLIS, P.E., BARRON, G.A., and BERMANO, G. 2020. Adipocytokines and their relationship to endometrial cancer risk: a systematic review and meta-analysis. Gynecologic oncology [online], 158(2), pages 507-516. Available from:

Journal Article Type Article
Acceptance Date May 21, 2020
Online Publication Date Jun 5, 2020
Publication Date Aug 1, 2020
Deposit Date May 25, 2020
Publicly Available Date Jun 6, 2021
Journal Gynecologic Oncology
Print ISSN 0090-8258
Electronic ISSN 1095-6859
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 158
Issue 2
Pages 507-516
Keywords Endometrial cancer; Obesity; Adipocytokines; Risk factors; Meta-analysis
Public URL


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