نتایج جستجو برای: multipotent hematopoietic cells
تعداد نتایج: 1409235 فیلتر نتایج به سال:
The Mre11 complex promotes DNA double-strand break repair and regulates DNA damage signaling via activation of the ataxia-telangiectasia mutated (ATM) kinase. The hypermorphic Rad50(S) allele encodes a variant of Rad50, a member of the Mre11 complex. Cells expressing Rad50(S) experience constitutive ATM activation, which leads to precipitous apoptotic attrition in hematopoietic cells. In this s...
Bone marrow mesenchymal stem cells (BMSCs) are non-hematopoietic multipotent stem cells capable of differentiating into mature cells. Studies in animal models have indicated that hepatocellular carcinoma (HCC) may originate from genetically mutated BMSCs. Moreover, it has been shown that BMSCs are influenced by and can modulate their micro-environment via secreted cytokines that promote tumor i...
Hematopoiesis is a permanent and complex event in which a spectrum of different mature blood cells from a small population of toti/pluri/multipotent stem cells (SCs) are produced through a variety of proliferative and differentiative processes. Hematopoietic SCs are defined as the cells with extensive self–renewal and proliferative potential, together with their ability to differentiate into al...
A regulatory circuit that controls myeloid versus B lymphoid cell fate in hematopoietic progenitors has been proposed, in which a network of the transcription factors Egr1/2, Nab, Gfi1 and PU.1 forms the core element. Here we show that a direct link between Gfi1, the transcription factor E2A and its inhibitor Id1 is a critical element of this regulatory circuit. Our data suggest that a certain ...
SUMMARY: Mesenchymal stem cells (MSCs) represent a class of multipotent progenitor cells that have been isolated from multiple tissue sites. Of these, adipose tissue and bone marrow offer advantages in terms of access, abundance, and the extent of their documentation in the literature. This review focuses on the in vitro differentiation capability of cells derived from adult human tissue. Multi...
Hematopoietic stem cells (HSCs) emerge from aortic endothelium via the endothelial-to-hematopoietic transition (EHT). The molecular mechanisms that initiate and regulate EHT remain poorly understood. Here, we show that adenosine signaling regulates hematopoietic stem and progenitor cell (HSPC) development in zebrafish embryos. The adenosine receptor A2b is expressed in the vascular endothelium ...
Myeloproliferative neoplasms (MPNs) are caused by somatic pathogenic variants that stimulate increased production and clonal expansion of CD34 multipotent hematopoietic stem cells. Recent World Health Organization (WHO) diagnostic criteria for the diagnosis Philadelphia chromosome (Ph) negative MPNs includes detection mutations in Janus Kinase 2 (), myeloproliferative leukemia calreticulin () g...
the stem cells can be considered as the miracle of creation, because, they are a major reservoir of the bioactive factors, molecules and cells. these reservoir cells play a major role in development and growth of the tissues and organs. regardless of the differences in differentiation capacity of embryonic and adult stem cells, both the cells are rich sources of stem cells with therapeutic appl...
cord blood is a rich source of hematopoietic stem cells and could be potentially used for transplantation instead of conventional sources of stem cells (bone marrow or peripheral blood). cord blood cells are successfully used in pediatric and adult patients, but their major limitation is the low number of hematopoietic stem cells for patients of large body size. there are several possible solut...
Hematopoietic recovery is considered to be associated with the number of multipotent hematopoietic stem cells in the bone marrow, as observed in functional assays involving stem cell transplantation. However, there is little evidence related to hematopoietic recovery in non-transplantation settings, which is accomplished by endogenous hematopoietic cells. A recent study suggested that progenito...
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