Molecular characterization of pregnancy-associated breast cancer and insights on timing from GEICAM-EMBARCAM study.

Fecha de publicación: Fecha Ahead of Print:

Autores de IIS La Fe

Participantes ajenos a IIS La Fe

  • Pena-Enriquez, Regina
  • Bermejo, Begona
  • Pollan, Marina
  • Diaz-Chacon, Alejandra
  • Jerez Gilarranz, Yolanda
  • Ponce Lorenzo, Jose J
  • Fernandez Aramburo, Antonio
  • Cantos Sanchez de Ibarguen, Blanca
  • Galve-Calvo, Elena
  • Jimenez-Arranz, Alvaro
  • Fernandez, Yolanda
  • Perez, Maria Eva
  • De La Cruz, Susana
  • Anton-Torres, Antonio
  • Moreno, Fernando
  • Vidal-Losada, Maria Jesus
  • Lopez-Ceballos, Maria Helena
  • Blancas, Isabel
  • Echarri, Maria Jose
  • Rincon, Raul
  • Caballero, Rosalia
  • Guerrero-Zotano, Angel
  • Guil-Luna, Silvia
  • de la Haba-Rodriguez, Juan

Grupos

Abstract

Pregnancy-associated breast cancer (PABC), diagnosed during or shortly after pregnancy, is a challenging entity with an aggressive biology and poor prognosis. This study analyzed the clinicopathological characteristics and gene expression profile of 33 PABC and 26 non-PABC patients using the nCounter BC360 Panel (NanoString). Notably, PABC showed a higher prevalence of basal-like tumors than non-PABC (48.48% vs 15.38%, p=0.012) and displayed 73 differentially expressed genes (e.g., DEPDC1, CCNA2, PSAT1, CDKN3, and FAM83D), enriched in DNA repair and cell proliferation pathways. Through the PPI network, we also identified a cluster of cell-cycle regulation genes like MYC, FOXM1, or PTEN. Interestingly, differences emerged when comparing patients diagnosed during gestation (PABC-GS) and the postpartum period (PABC-PP), with PABC-PP showing increased expression of immune-related genes, including PD-1, and greater immune cell infiltration (Tregs, macrophages, neutrophils, B-cells). These findings suggest an enhanced proliferative capacity and impaired DNA repair in PABC, and underscore the role of immune infiltration in postpartum cases; providing insights into its aggressive nature and potential targets.

© 2025. The Author(s).

Datos de la publicación

ISSN/ISSNe:
2374-4677, 2374-4677

npj Breast Cancer  NATURE PORTFOLIO

Tipo:
Article
Páginas:
12-12
PubMed:
39922815
Enlace a otro recurso:
www.scopus.com
Factor de Impacto:
2,863 SCImago ℠
Cuartil:
Q1 SCImago ℠

Citas Recibidas en Web of Science: 14

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Keywords

  • MAMMARY-GLAND INVOLUTION; RISK; PROGNOSIS; WOMEN; EPIDEMIOLOGY; MACROPHAGES; METASTASIS; DEFINITION; MECHANISMS; AGE

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