Molecular subtype of ovarian clear cell carcinoma: an analysis of 80 Chinese patients using the TCGA molecular classification of endometrial cancer

Bibliographic Details
Title: Molecular subtype of ovarian clear cell carcinoma: an analysis of 80 Chinese patients using the TCGA molecular classification of endometrial cancer
Authors: Wei Chen, Lu Yan, Qin Li, Shuling Zhou, Ting Hou, Huijuan Yang, Shuang Ye
Source: BMC Cancer, Vol 25, Iss 1, Pp 1-10 (2025)
Publisher Information: BMC, 2025.
Publication Year: 2025
Collection: LCC:Neoplasms. Tumors. Oncology. Including cancer and carcinogens
Subject Terms: Ovarian clear cell carcinoma, Next-generation sequencing, TCGA subtypes, Prognosis, Molecular subclassification, Microsatellite instability, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
More Details: Abstract Background To assess the utility of the TCGA molecular classification of endometrial cancer in a well-annotated, moderately sized, consecutive cohort of Chinese patients with ovarian clear cell carcinoma (OCCC). Methods We performed DNA sequencing on 80 OCCC patients via a panel that contains 520 cancer-related genes. The TCGA molecular subtyping method was utilized for classification. The clinicopathological features were analysed, and the survival correlation was assessed for each subtype. Results The most common mutated genes were ARID1A (49%) and PIK3CA (48%). No pathogenic POLE mutations were detected. MSI-high (MSI-H) tumours were observed in 5 (6.3%) patients. A total of 16.3% (13/80) of the patients were classified as the p53 abnormal (p53abn) subtype, and 77.5% (62/80) were classified as the nonspecific molecular profile (NSMP) subtype. All the MSI-H patients had ARID1A mutations, whereas patients with the p53abn subtype had the lowest percentage of ARID1A mutations (27.3%). No significant differences were observed between the molecular subtypes and clinicopathological features. The progression-free survival and overall survival of the entire cohort were closely associated with FIGO stage (p
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1471-2407
Relation: https://doaj.org/toc/1471-2407
DOI: 10.1186/s12885-024-13389-x
Access URL: https://doaj.org/article/e5d6797d8dda4e3ca5a22dcebaa95fd0
Accession Number: edsdoj.5d6797d8dda4e3ca5a22dcebaa95fd0
Database: Directory of Open Access Journals
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More Details
ISSN:14712407
DOI:10.1186/s12885-024-13389-x
Published in:BMC Cancer
Language:English