Adipocytes secretome from normal and tumor breast favor breast cancer invasion by metabolic reprogramming

Maurice Zaoui; Mehdi Morel; Lila Louadj; Nathalie Ferrand; Antonin Lamazière; Catherine Uzan; Geoffroy Canlorbe; Michael Atlan; Michèle Sabbah

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Adipocytes secretome from normal and tumor breast favor breast cancer invasion by metabolic reprogramming

Maurice Zaoui ^[2] ; Mehdi Morel ^[2] ; Lila Louadj ^[2] ; Nathalie Ferrand ^[2] ; Antonin Lamazière ^[1] ; Catherine Uzan ^[2] ; Geoffroy Canlorbe ^[2] ; Michael Atlan ^[3] ; Michèle Sabbah ^[2]
1. [1] French Institute of Health and Medical Research
  
  French Institute of Health and Medical Research
  
  París, Francia
2. [2] Team Cancer Biology and Therapeutics, Centre de Recherche Saint-Antoine (CRSA), Institut Universitaire de Cancérologie, Sorbonne University, INSERM UMR_S 938, 75012, Paris, France
3. [3] Department of Plastic Surgery, Reconstructive, Aesthetic, Microsurgery and Tissue Regeneration, Tenon Hospital, Institut Universitaire de Cancérologie, AP-HP, 75020, Paris, France
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Localización: Clinical & translational oncology, ISSN 1699-048X, Vol. 25, Nº. 5 (May), 2023, págs. 1389-1401
Idioma: inglés
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Resumen
- Background Adipose tissue is a major component of breast stroma. This study focused on delineating the effects of adipose stem cells (ASCs) derived from breast of healthy women and cancer patients with normal or tumor breast cells.
  
  Methods The ASCs were induced to differentiate into adipocytes, and the subsequent adipocyte conditioned media (ACM) were evaluated for their fatty acid profile, adipokine secretion and influence on proliferation, migration and invasion on tumoral (MCF-7 and SUM159) and normal (HMEC) human breast cell lines.
  
  Results An enrichment of arachidonic acid was observed in ACM from tumor tissues. Adipose tissues from tumor free secrete twice as much leptin than those from proximal or distal to the tumor. All ACMs display proliferative activity and favor invasiveness of SUM159 cells compared to MCF-7 and HMEC. All ACMs induced lipid droplets accumulation in MCF-7 cells and increased CD36 expression in tumor cells.
  
  Conclusion We conclude that among secreted factors analyzed, only arachidonic acid and leptin levels did discriminate ASCs from tumor-bearing and tumor-free breasts emphasizing the importance that other cell types could contribute to the adipose tissue secretome in a tumor context.