Bone marrow dendritic cells support the survival of chronic lymphocytic leukemia cells in a CD84 dependent manner.
Oncogene
; 39(9): 1997-2008, 2020 02.
Article
en En
| MEDLINE
| ID: mdl-31772329
ABSTRACT
Chronic lymphocytic leukemia (CLL) is a malignancy of mature B lymphocytes. The microenvironment of the CLL cells is a vital element in the regulation of the survival of these malignant cells. CLL cell longevity is dependent on external signals, originating from cells in their microenvironment including secreted and surface-bound factors. Dendritic cells (DCs) play an important part in tumor microenvironment, but their role in the CLL bone marrow (BM) niche has not been studied. We show here that CLL cells induce accumulation of bone marrow dendritic cells (BMDCs). Depletion of this population attenuates disease expansion. Our results show that the support of the microenvironment is partly dependent on CD84, a cell surface molecule belonging to the Signaling Lymphocyte Activating Molecule (SLAM) family of immunoreceptors. Our results suggest a novel therapeutic strategy whereby eliminating BMDCs or blocking the CD84 expressed on these cells may reduce the tumor load.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Médula Ósea
/
Células Dendríticas
/
Leucemia Linfocítica Crónica de Células B
/
Microambiente Tumoral
/
Familia de Moléculas Señalizadoras de la Activación Linfocitaria
Tipo de estudio:
Prognostic_studies
Límite:
Animals
/
Female
/
Humans
Idioma:
En
Revista:
Oncogene
Asunto de la revista:
BIOLOGIA MOLECULAR
/
NEOPLASIAS
Año:
2020
Tipo del documento:
Article
País de afiliación:
Israel