Evidence map›Paper›PMID 39471035›Full record

ArticleAsian Pacific journal of cancer prevention : APJCP2024

Simplifying Mismatch Repair Deficiency Screening in Endometrial Adenocarcinoma: Immunohistochemistry with Two-Antibody Panel (PMS2 and MSH6).

Pinyada Panyavaranant, Natkrita Pohthipornthawat, Tarinee Manchana

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Article in Asian Pacific journal of cancer prevention : APJCP, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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2 · The registry

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3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Review
4 · The record

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5 · Who and what money

Authors and funding

3 authors.

Pinyada PanyavaranantDepartment of Obstetrics and Gynecology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.ORCID 0000-0003-3267-6577
Natkrita PohthipornthawatDepartment of Obstetrics and Gynecology, King Chulalongkorn Memorial Hospital, Bangkok, Thailand.ORCID 0000-0002-8766-7101
Tarinee ManchanaDepartment of Obstetrics and Gynecology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.ORCID 0000-0001-7088-628X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMismatch repair deficiency (dMMR) is a well-established characteristic of endometrial adenocarcinoma and is crucial in screening for Lynch syndrome, guiding adjuvant treatment decisions, and identifying candidates for immune checkpoint inhibitors. The traditional approach to dMMR screening involves a four-antibody panel, but a simplified two-antibody method utilizing PMS2 and MSH6 has shown promise. This study aims to compare the diagnostic performance of the simplified two-antibody method with the traditional four-antibody panel in endometrial cancer samples.

methodsWe conducted a retrospective cohort study on endometrial carcinoma cases diagnosed between 2013 and 2022. We compared the diagnostic performance of the two-antibody panel with the traditional four-antibody panel in detecting dMMR. Clinical data and immunohistochemistry results were collected, and agreement between the two methods was evaluated using Cohen's kappa coefficient.

results304 endometrial cancer cases were included, with 27% demonstrating loss of at least one MMR protein using the four-antibody panel. The two-antibody method detected MMR deficiency in 26.6% of cases, with a high agreement rate of 98.8% between the two methods. Only one case showed discordant results, prompting further investigation.

conclusionThe simplified two-antibody MMR IHC screening approach using PMS2 and MSH6 showed high concordance with the traditional four-antibody panel. This suggests its potential as an alternative method for reflex MMR status testing in endometrial adenocarcinoma. The implementation of this approach could streamline the diagnostic process, reduce costs, and improve the detection of Lynch syndrome in affected individuals and their families. Further studies with larger cohorts and long-term follow-up are needed to validate these findings and assess the clinical implications of this approach in routine practice.

Indexed as

AdenocarcinomaBiomarkers, TumorDNA-Binding ProteinsEndometrial NeoplasmsImmunohistochemistryMismatch Repair Endonuclease PMS2AdultAgedDNA Mismatch RepairEarly Detection of CancerFemaleFollow-Up StudiesHumansMiddle AgedPrognosisRetrospective StudiesBiomarkers, TumorDNA-Binding ProteinsG-T mismatch-binding proteinMismatch Repair Endonuclease PMS2PMS2 protein, humanEndometrial adenocarcinomaimmunohistochemistryLynch syndromemismatch repair deficiencyTwo-antibody panel

Identifiers

PMID39471035
PMCPMC11711341

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.