Targeting CD38 effectively prevents myelofibrosis in myeloproliferative neoplasms

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Publicado en:bioRxiv (Mar 3, 2025)
Autor principal: Yan, Yiru
Otros Autores: Liu, Jinqin, Zhao, Songyang, Li, Fuhui, Yang, Lin, Xu, Zefeng, Qin, Tiejun, Zhu, Xiaofan, An, Wenbin, Huang, Gang, Rampal, Raajit K, Xiao, Zhijian, Li, Bing
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Cold Spring Harbor Laboratory Press
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Acceso en línea:Citation/Abstract
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LEADER 00000nab a2200000uu 4500
001 3173169396
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022 |a 2692-8205 
024 7 |a 10.1101/2025.03.02.639410  |2 doi 
035 |a 3173169396 
045 0 |b d20250303 
100 1 |a Yan, Yiru 
245 1 |a Targeting CD38 effectively prevents myelofibrosis in myeloproliferative neoplasms 
260 |b Cold Spring Harbor Laboratory Press  |c Mar 3, 2025 
513 |a Working Paper 
520 3 |a Proinflammatory signaling is a hallmark of myeloproliferative neoplasms (MPNs). Several studies have shown that monocytes are a major source of proinflammatory cytokines and monocyte-derived fibrocytes play a pivotal role in the pathogenesis of myelofibrosis (MF). To further explore the role of monocytes in MF, we generated inducible NrasG12D/+Jak2V617F/+ (NJ) mice. Recipients transplanted with NJ bone marrow cells developed MF with an early onset of anemia and monocytosis. In vitro, NJ recipients bone marrow nucleated cells exhibited increased quantity of CD45+CollagenI+ fibrocytes, which were mainly derived from the Ly6chigh monocytes. RNA sequencing identified a significant elevated expression of CD38 (a nicotinamide adenine dinucleotide (NAD)+ hydrolase) in Ly6chigh monocytes from NJ mice, which results in pronounced lower level of NAD+. In humans, CD14+ monocytes from MF patients showed significantly higher expression of CD38 than controls and monocytes from polycythemia vera (PV) patients with grade 1 fibrosis had higher CD38 expression than those without fibrosis. Finally, we tested that boosting NAD+ via pharmacological CD38 targeting or NAD+ precursor supplementation inhibited the differentiation of fibrocytes in vitro and observed that targeting CD38 can effectively prevent the onset of fibrosis in vivo. Collectively, our findings shed light on the role of CD38 in monocytes and suggest potential clinical applications such as use of CD38 as a biomarker of fibrotic progression and potential clinical utility of CD38 inhibition in patients with MF.Competing Interest StatementR.K.R. has received consulting fees from Constellation, Incyte, Celgene/BMS, Novartis, Promedior, CTI, Jazz Pharmaceuticals, Blueprint, Stemline, Galecto, PharmaEssentia, AbbVie, Sierra Oncology, and Disc Medicines; and research funding from Incyte, Constellation, and Stemline. The remaining authors declare no competing financial interests. 
653 |a Monocytes 
653 |a NAD 
653 |a Bone marrow transplantation 
653 |a Polycythemia vera 
653 |a CD14 antigen 
653 |a Polycythemia 
653 |a Bone marrow 
653 |a CD45 antigen 
653 |a Tumors 
653 |a Fibrosis 
653 |a Monocytosis 
653 |a Myelofibrosis 
653 |a CD38 antigen 
653 |a Inflammation 
700 1 |a Liu, Jinqin 
700 1 |a Zhao, Songyang 
700 1 |a Li, Fuhui 
700 1 |a Yang, Lin 
700 1 |a Xu, Zefeng 
700 1 |a Qin, Tiejun 
700 1 |a Zhu, Xiaofan 
700 1 |a An, Wenbin 
700 1 |a Huang, Gang 
700 1 |a Rampal, Raajit K 
700 1 |a Xiao, Zhijian 
700 1 |a Li, Bing 
773 0 |t bioRxiv  |g (Mar 3, 2025) 
786 0 |d ProQuest  |t Biological Science Database 
856 4 1 |3 Citation/Abstract  |u https://www.proquest.com/docview/3173169396/abstract/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch 
856 4 0 |3 Full text outside of ProQuest  |u https://www.biorxiv.org/content/10.1101/2025.03.02.639410v1