000			02567na a2200229 4500
003			PC6145
005			20191018062648.0
008			130622s2011 xxx||||| |||| 00| 0 eng d
040			_cH12O
041			_aeng
100			_9388 _aLahuerta Palacios, Juan José _eHematología y Hemoterapia
245	0	0	_aCompetition between clonal plasma cells and normal cells for potentially overlapping bone marrow niches is associated with a progressively altered cellular distribution in MGUS vs myeloma _h[artículo]
260			_bLeukemia, _c2011.
300			_a25(4):697-706.
500			_aFormato Vancouver: Paiva B, Pérez-Andrés M, Vídriales MB, Almeida J, de las Heras N, Mateos MV, et al. Competition between clonal plasma cells and normal cells for potentially overlapping bone marrow niches is associated with a progressively altered cellular distribution in MGUS vs myeloma. Leukemia. 2011;25(4):697-706.
501			_aPMID: 21252988
504			_aContiene 48 referencias.
520			_aDisappearance of normal bone marrow (BM) plasma cells (PC) predicts malignant transformation of monoclonal gammopathy of undetermined significance (MGUS) and smoldering myeloma (SMM) into symptomatic multiple myeloma (MM). The homing, behavior and survival of normal PC, but also CD34(+) hematopoietic stem cells (HSC), B-cell precursors, and clonal PC largely depends on their interaction with stromal cell-derived factor-1 (SDF-1) expressing, potentially overlapping BM stromal cell niches. Here, we investigate the distribution, phenotypic characteristics and competitive migration capacity of these cell populations in patients with MGUS, SMM and MM vs healthy adults (HA) aged >60 years. Our results show that BM and peripheral blood (PB) clonal PC progressively increase from MGUS to MM, the latter showing a slightly more immature immunophenotype. Of note, such increased number of clonal PC is associated with progressive depletion of normal PC, B-cell precursors and CD34(+) HSC in the BM, also with a parallel increase in PB. In an ex vivo model, normal PC, B-cell precursors and CD34(+) HSC from MGUS and SMM, but not MM patients, were able to abrogate the migration of clonal PC into serial concentrations of SDF-1. Overall, our results show that progressive competition and replacement of normal BM cells by clonal PC is associated with more advanced disease in patients with MGUS, SMM and MM.
710			_9297 _aServicio de Hematología y Hemoterapia
856			_uhttp://pc-h12o-es.m-hdoct.a17.csinet.es/pdf/pc6145.pdf _ySolicitar documento
942			_2ddc _cART _n0
999			_c6145 _d6145