| Literature DB >> 31772329 |
Avital F Barak1, Hadas Lewinsky1, Michal Perpinial1, Victoria Huber1, Lihi Radomir1, Mattias P Kramer1, Lital Sever1, Yochai Wolf1, Mika Shapiro2, Yair Herishanu2, Steffen Jung1, Shirly Becker-Herman1, Idit Shachar3.
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.Entities:
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Year: 2019 PMID： 31772329 DOI： 10.1038/s41388-019-1121-y
Source DB: PubMed Journal: Oncogene ISSN： 0950-9232 Impact factor: 9.867