Evidence map›Paper›PMID 42439679›Full record

ArticleCells2026

KRT6A Is a Biomarker of PAS Progression and Enhances the Invasive Ability of Trophoblast Cells.

Zhirong Guo, Jiaqi Huang, Weiran Zheng, Ruochong Dou, Xinrui Yang, Huixia Yang, Jingmei Ma

Abstract read
In one paragraph

Article in Cells, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Zhirong GuoDepartment of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China.ORCID 0000-0002-6037-8297
Jiaqi HuangDepartment of Radiation Therapy, Peking University People's Hospital, Beijing 100044, China.
Weiran ZhengDepartment of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China.
Ruochong DouDepartment of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China.
Xinrui YangDepartment of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China.
Huixia YangDepartment of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China.
Jingmei MaDepartment of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China.

Funding

National High Level Hospital Clinical Research Funding 25cz020301-4806074, 25cz020301-4805747, 22cz020401-4811009National Key Research and Development Program of China 2021YFC2700700National Key Research and Development Program of China 2022YFC2702500Strategic Collaborative Research Program of the Ferring Institute of Reproductive Medicine FIRMA181104Young Scientists Fund (Category C) of the National Natural Science Foundation of China 82502037, 82503785
6 · The paper itself

Abstract

Placenta Accreta Spectrum (PAS) is a severe obstetric disorder characterized by excessive trophoblast invasion into the uterine myometrium, leading to life-threatening hemorrhage at delivery. While closely monitored, the molecular drivers of its progression remain poorly defined, hindering predictive and therapeutic strategies. Here, we employed longitudinal quantitative proteomics on maternal plasma from five PAS patients across gestation. We identified Keratin 6A (KRT6A) as a key biomarker whose plasma levels increase with PAS progression. Immunohistochemistry confirmed the specific upregulation of KRT6A in trophoblasts at the maternal-fetal interface in PAS. Functional studies demonstrated that KRT6A overexpression significantly enhances the migration and invasion capabilities of trophoblast cell lines in vitro, without affecting proliferation or apoptosis. Integrative bioinformatics analysis linked KRT6A to the activation of the MYC signaling pathway, a known driver of invasiveness. Our data establish KRT6A as a plasma biomarker correlating with PAS severity and a functional regulator of trophoblast invasiveness. These findings suggest a novel mechanism wherein KRT6A-mediated enhancement of trophoblast invasion, potentially via MYC signaling, contributes to PAS pathogenesis. This work provides a potential circulating biomarker for monitoring PAS progression and implicates KRT6A as a candidate therapeutic target for mitigating excessive placental invasion.

Indexed as

BiomarkersKeratin-6TrophoblastsAdultCell LineCell MovementCell ProliferationDisease ProgressionFemaleHumansPregnancySignal TransductionBiomarkersKeratin-6KRT6A protein, humanbiomarkerKRT6Aplacenta accreta spectrumproteomics

Identifiers

PMID42439679
PMCPMC13359832

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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.