Quaas, Alexander, Biesma, Hedde D., Wagner, Anna D., Verheij, Marcel, Henegouwen, Mark I. van Berge, Schoemig-Markiefka, Birgid, Pamuk, Aylin, Zander, Thomas, Siemanowski, Janna, Sikorska, Karolina, Egthuijsen, Jacqueline M. P., Kranenbarg, Elma M. Meershoek-Klein, van de Velde, Cornelis J. H., Buettner, Reinhard, Alakus, Hakan, Cats, Annemieke, Ylstra, Bauke ORCID: 0000-0001-9479-3010, van Laarhoven, Hanneke W. M. and van Grieken, Nicole C. T. (2022). Microsatellite instability and sex differences in resectable gastric cancer - A pooled analysis of three European cohorts. Eur. J. Cancer, 173. S. 95 - 105. OXFORD: ELSEVIER SCI LTD. ISSN 1879-0852

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Abstract

Objective: Biological sex differences in cancer are increasingly acknowledged. Here, we examined these differences in clinicopathological characteristics and survival in microsatellite instability (MSI)-high and microsatellite stable (MSS) gastric cancer (GC). Design: We analysed MSI status by polymerase chain reaction (PCR) and/or mismatch repair (MMR) status by immunohistochemistry in a pooled analysis of individual patient data from one retrospective cohort from Cologne, and the randomised phase III clinical trials D1/D2 and CRITICS. All patients had resectable adenocarcinoma of the stomach and/or gastro-oesophageal junction. Patients were treated with either surgery only or perioperative chemo(radio) therapy. Results: MSI and/or MMR analyses on 1307 tumours resulted in 1192 (91.2%) MSS and/or MMR proficient (MMRP) [median age, 65 years; 759 males (63.7%); 619 treated with surgery only (51.9%)], and 115 (8.8%) MSI-high [median age, 69 years; 67 males (58.3%); 76 treated with surgery only (66.1%)] GC cases. Males had shorter overall survival (OS) than female MSI-high GC (5-year OS 34.7% vs. 69.7%; hazard ratio (HR) 2.68, 95%CI 1.60 to 4.49; p < 0.001). Females with MSI-high had longer OS than those with MSS/MMRP GC ( HR 0.61, 95%CI 0.41 to 0.92; p = 0.02). Males with MSI-high did not have longer OS than those with MSS/MMRP GC (HR 1.26, 95%CI 0.94 to 1.69; p = 0.12). Conclusions: MSI-high GC males had a significantly worse prognosis compared to their female counterparts in three independent cohorts. In addition, the favourable prognostic value of MSI was only seen in females and not in males. These observations emphasise the need to consider sex differences in prognosis and treatment effects in oncology. Clinical trial registration: The CRITICS trial is registered at ClinicalTrials.gov, number NCT00407186; EudraCT, number 2006-004130-32; and CKTO, 2006-02. (C) 2022 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Quaas, AlexanderUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Biesma, Hedde D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wagner, Anna D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Verheij, MarcelUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Henegouwen, Mark I. van BergeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schoemig-Markiefka, BirgidUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pamuk, AylinUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zander, ThomasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Siemanowski, JannaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sikorska, KarolinaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Egthuijsen, Jacqueline M. P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kranenbarg, Elma M. Meershoek-KleinUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
van de Velde, Cornelis J. H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Buettner, ReinhardUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Alakus, HakanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cats, AnnemiekeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ylstra, BaukeUNSPECIFIEDorcid.org/0000-0001-9479-3010UNSPECIFIED
van Laarhoven, Hanneke W. M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
van Grieken, Nicole C. T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-690613
DOI: 10.1016/j.ejca.2022.06.025
Journal or Publication Title: Eur. J. Cancer
Volume: 173
Page Range: S. 95 - 105
Date: 2022
Publisher: ELSEVIER SCI LTD
Place of Publication: OXFORD
ISSN: 1879-0852
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
SURVIVAL; METAANALYSIS; DISEASE; TRENDS; TUMORSMultiple languages
OncologyMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/69061

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