NCAPH drives breast cancer progression and identifies a gene signature that predicts luminal a tumour recurrence
Marina Mendiburu-Eliçabe , Natalia García-Sancha , Roberto Corchado-Cobos , Angélica Martínez-López , Hang Chang , Jian Hua Mao , Adrián Blanco-Gómez , Ana García-Casas , Andrés Castellanos-Martín , Nélida Salvador , Alejandro Jiménez-Navas , Manuel Jesús Pérez-Baena , Manuel Adolfo Sánchez-Martín , María Del Mar Abad-Hernández , Sofía Del Carmen , Juncal Claros-Ampuero , Juan Jesús Cruz-Hernández , César Augusto Rodríguez-Sánchez , María Begoña García-Cenador , Francisco Javier García-Criado , Rodrigo Santamaría Vicente , Sonia Castillo-Lluva , Jesús Pérez-Losada
Clinical and Translational Medicine ›› 2024, Vol. 14 ›› Issue (2) : e1554
NCAPH drives breast cancer progression and identifies a gene signature that predicts luminal a tumour recurrence
Background: Luminal A tumours generally have a favourable prognosis but possess the highest 10-year recurrence risk among breast cancers. Additionally, a quarter of the recurrence cases occur within 5 years post-diagnosis. Identifying such patients is crucial as long-term relapsers could benefit from extended hormone therapy, while early relapsers might require more aggressive treatment.
Methods: We conducted a study to explore non-structural chromosome maintenance condensin I complex subunit H’s (NCAPH) role in luminal A breast cancer pathogenesis, both in vitro and in vivo, aiming to identify an intratumoural gene expression signature, with a focus on elevated NCAPH levels, as a potential marker for unfavourable progression. Our analysis included transgenic mouse models overexpressing NCAPH and a genetically diverse mouse cohort generated by backcrossing. A least absolute shrinkage and selection operator (LASSO) multivariate regression analysis was performed on transcripts associated with elevated intratumoural NCAPH levels.
Results: We found that NCAPH contributes to adverse luminal A breast cancer progression. The intratumoural gene expression signature associated with elevated NCAPH levels emerged as a potential risk identifier. Transgenic mice overexpressing NCAPH developed breast tumours with extended latency, and in Mouse Mammary Tumor Virus (MMTV)-NCAPHErbB2 double-transgenic mice, luminal tumours showed increased aggressiveness. High intratumoural Ncaph levels correlated with worse breast cancer outcome and subpar chemotherapy response. A 10-gene risk score, termed Gene Signature for Luminal A 10 (GSLA10), was derived from the LASSO analysis, correlating with adverse luminal A breast cancer progression.
Conclusions: The GSLA10 signature outperformed the Oncotype DX signature in discerning tumours with unfavourable outcomes, previously categorised as luminal A by Prediction Analysis of Microarray 50 (PAM50) across three independent human cohorts. This new signature holds promise for identifying luminal A tumour patients with adverse prognosis, aiding in the development of personalised treatment strategies to significantly improve patient outcomes.
breast cancer / genetic signature / LASSO / luminal A subtype / NCAPH / prognosis / relapse-free survival
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2024 The Authors. Clinical and Translational Medicine published by John Wiley & Sons Australia, Ltd on behalf of Shanghai Institute of Clinical Bioinformatics.
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