Exosomes released by chronic lymphocytic leukemia cells induce the transition of stromal cells into cancer-associated fibroblasts

Author:

Paggetti Jerome1,Haderk Franziska2,Seiffert Martina2,Janji Bassam1,Distler Ute3,Ammerlaan Wim4,Kim Yeoun Jin3,Adam Julien56,Lichter Peter2,Solary Eric67,Berchem Guy18,Moussay Etienne1

Affiliation:

1. Laboratory of Experimental Hemato-Oncology, Luxembourg Institute of Health, Luxembourg, Luxembourg;

2. Department for Molecular Genetics, German Cancer Research Center, Heidelberg, Germany;

3. Luxembourg Clinical Proteomics Center, Luxembourg Institute of Health, Luxembourg, Luxembourg;

4. Integrated BioBank of Luxembourg, Luxembourg, Luxembourg;

5. INSERM U981, Gustave Roussy, Villejuif, France;

6. Faculty of Medicine, University Paris-Sud, Le Kremlin-Bicêtre, France;

7. INSERM UMR1009, Gustave Roussy Villejuif, France; and

8. Centre Hospitalier de Luxembourg, Luxembourg, Luxembourg

Abstract

Key Points CLL-derived exosomes are internalized by stromal cells, deliver functional microRNA and proteins, and activate key signaling pathways. Stromal cells exposed to CLL-derived exosomes demonstrate a CAF-like phenotype and secrete factors promoting CLL cell survival.

Publisher

American Society of Hematology

Subject

Cell Biology,Hematology,Immunology,Biochemistry

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