Primate Monocytes - CD14, CD16 - Ziegler-Heitbrock


Transcriptional differences between JAK2-V617F and wild-type bone marrow cells in myeloproliferative neoplasm patients.


The JAK2-V617F mutation is the most common cause of myeloproliferative neoplasms. While experiments have shown that this gain-of-function mutation is associated with myeloid blood cell expansion and increased production of white cells, red cells and platelets, the transcriptional consequences of the JAK2-V617F mutation in different cellular compartments of the bone marrow have not yet been fully elucidated. To study the direct effects of JAK2-V617F on bone marrow cells in myeloproliferative neoplasm patients, we performed joint single-cell RNA sequencing and JAK2 genotyping on CD34+ enriched cells from 8 patients with newly diagnosed essential thrombocythemia or polycythemia vera. We found that the JAK2-V617F mutation increases the expression of interferon-response genes (e.g., HLAs) and the leptin receptor in hematopoietic progenitor cells. Furthermore, we sequenced a population of CD34-bone marrow monocytes and found the JAK2 mutation increased expression of intermediate monocyte genes and the fibrocyte-associated surface protein SLAMF7 in these cells.

Authors: Van Egeren D, Kamaz B, Liu S, Nguyen M, Reilly CR, Kalyva M, DeAngelo DJ, Galinsky I, Wadleigh M, Winer ES, Luskin MR, Stone RM, Garcia JS, Hobbs GS, Michor F, Cortes-Ciriano I, Mullally A, Hormoz S,
Journal: Exp Hematol;2021Dec15. S0301-472X(21)00823-7doi:10.1016/j.exphem.2021.12.364
Year: 2021
PubMed: PMID: 34921959 (Go to PubMed)