Figure 1. Overview of non-cell autonomous effects of chronic innate immune activation in MDS.
The MDS bone marrow (BM) consists of MDS-derived hematopoietic cells and residual normal cells. The non-cell autonomous consequences of the MDS-derived BM include increased expression of cytokines, expansion of myeloid-derived suppressor cells (MDSC), and lymphocyte-mediated attack on hematopoietic cells. In addition, MDS HSC affect mesenchymal stromal cells (MSC), therefore altering the HSC niche and hematopoietic differentiation.
