ArticleBlood cells, molecules & diseases2021
JAK2V617F mutant endothelial cells promote neoplastic hematopoiesis in a mixed vascular microenvironment.
Article in Blood cells, molecules & diseases, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed, 6 citations in OpenAlex.
- Cell competition between wild-type and JAK2V617F mutant cells prevents disease relapse after stem cell transplantation in a murine model of myeloproliferative neoplasm.Experimental hematology & oncology · 2021Article
- A Murine Model With JAK2V617F Expression in Both Hematopoietic Cells and Vascular Endothelial Cells Recapitulates the Key Features of Human Myeloproliferative Neoplasm.Frontiers in oncology · 2021Article
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Authors and funding
6 authors at 5 institutions in 1 country.
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Abstract
The chronic myeloproliferative neoplasms (MPNs) are clonal stem cell disorders. The hematopoietic stem/progenitor cell (HSPC) compartment in patients with MPNs is heterogeneous with the presence of both wild-type and JAK2V617F mutant cells. Mechanisms responsible for mutant stem cell expansion in MPNs are not fully understood. Vascular endothelial cells (ECs) are an essential component of the hematopoietic microenvironment. ECs carrying the JAK2V617F mutation can be detected in patients with MPNs. Utilizing an ex vivo EC-HSPC co-culture system with mixed wild-type and JAK2V617F mutant ECs, we show that even small numbers of JAK2V617F mutant ECs can promote the expansion of JAK2V617F mutant HSPCs in preference to wild-type HSPCs during irradiation or cytotoxic chemotherapy, the two treatments commonly used in the conditioning regimen for stem cell transplantation, the only curative treatment for patients with MPNs. Mechanistically, we found that both cell-cell interactions and secreted factors are important for JAK2V617F mutant EC-mediated neoplastic hematopoiesis. Further understanding of how the JAK2V617F mutation alters vascular niche function will help identify new strategies to not only control neoplastic cell expansion but also prevent disease relapse in patients with MPNs.
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