Primate Monocytes - CD14, CD16 - Ziegler-Heitbrock


Single-cell analysis of peripheral blood from high-altitude pulmonary hypertension patients identifies a distinct monocyte phenotype.


Immune and inflammatory responses have an important function in the pathophysiology of pulmonary hypertension (PH). However, little is known about the immune landscape in peripheral circulation in patients with high-altitude pulmonary hypertension (HAPH). We apply single-cell transcriptomics to characterize the monocytes that are significantly enriched in the peripheral blood mononuclear cells (PBMC) of HAPH patients. We discover an increase in C1 (non-classical) and C2 (intermediate) monocytes in PBMCs and a decrease in hypoxia-inducible transcription factor-1alpha (HIF-1alpha) in all monocyte subsets associated with HAPH. In addition, we demonstrate that similar immune adaptations may exist in HAPH and PH. Overall, we characterize an immune cell atlas of the peripheral blood in HAPH patients. Our data provide evidence that specific monocyte subsets and HIF-1alpha downregulation might be implicated in the pathogenesis of HAPH.

Authors: Wu XH, He YY, Chen ZR, He ZY, Yan Y, He Y, Wang GM, Dong Y, Yang Y, Sun YM, Ren YH, Zhao QY, Yang XD, Wang LY, Fu CJ, He M, Zhang SJ, Fu JF, Liu H, Jing ZC,
Journal: Nat Commun;2023Mar31; 14 (1) 1820. doi:10.1038/s41467-023-37527-4
Year: 2023
PubMed: PMID: 37002243 (Go to PubMed)