TY - JOUR
T1 - Bone marrow dendritic cells support the survival of chronic lymphocytic leukemia cells in a CD84 dependent manner
AU - Barak, Avital F.
AU - Lewinsky, Hadas
AU - Perpinial, Michal
AU - Huber, Victoria
AU - Radomir, Lihi
AU - Kramer, Mattias P.
AU - Sever, Lital
AU - Wolf, Yochai
AU - Shapiro, Mika
AU - Herishanu, Yair
AU - Jung, Steffen
AU - Becker-Herman, Shirly
AU - Shachar, Idit
N1 - Publisher Copyright:
© 2019, The Author(s), under exclusive licence to Springer Nature Limited.
PY - 2020/2/27
Y1 - 2020/2/27
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85075523095&partnerID=8YFLogxK
U2 - 10.1038/s41388-019-1121-y
DO - 10.1038/s41388-019-1121-y
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C2 - 31772329
AN - SCOPUS:85075523095
SN - 0950-9232
VL - 39
SP - 1997
EP - 2008
JO - Oncogene
JF - Oncogene
IS - 9
ER -
