Acellular fraction from malignant effusions has cytotoxicity in breast cancer cells

Javier Vargas-Villarreal, Marlid Cruz-Ramos, Alba Espino-Ojeda, Hugo Gutierrez-Hermosillo, Enrique Díaz DE LEON-GONZALEZ, Ofelia Monsivais-Diaz, Rebeca Palacios-Corona, Carlos Alejandro Martinez-Armenta, Francisco González Salazar, Maria Guadalupe Moreno-Treviño, Francisco Javier GUZMAN-DE LA GARZA

Resultado de la investigaciónrevisión exhaustiva

Resumen

Malignant ascites (MA) and malignant pleural effusion (MPE) are frequently developed in patients with metastatic cancer; however, the biological properties of these fluids have not been clarified. The present study explored the biological role of a low molecular fraction derived from malignant effusions on the activation of peripheral blood mononuclear cells and on the proliferation of breast cancer cells and fibroblast 55x cells. A <10-kDa fraction from effusions of 41 oncological patients and 34 individuals without cancer was purified, and its potential role in inhibiting nitric oxide (NO) production on lipopolysaccharide (LPS)-stimulated peripheral blood mononuclear cells was explored, as well as its cytotoxicity on MCF-7 breast cancer cells and fibroblast 55x cells. A significant decrease in NO production was observed in the <10-kDa fraction from malignant effusions. In addition, the acellular fraction from MA decreased the viability of breast cancer cells without affecting human fibroblasts. These data support the presence of low molecular weight molecules in malignant samples with a specific role in inhibiting the defense mechanisms of peripheral blood mononuclear cells and decreasing the viability of breast cancer cells in vitro.

Idioma originalEnglish
Número de artículo106
PublicaciónMolecular and Clinical Oncology
Volumen14
N.º5
DOI
EstadoPublished - 2021

Nota bibliográfica

Publisher Copyright:
© 2021, Spandidos Publications. All rights reserved.

All Science Journal Classification (ASJC) codes

  • Investigación sobre el cáncer
  • Oncología

Huella

Profundice en los temas de investigación de 'Acellular fraction from malignant effusions has cytotoxicity in breast cancer cells'. En conjunto forman una huella única.

Citar esto