Xin-Hua Wu, Yang-Yang He, Zhang-Rong Chen, Ze-Yuan He, Yi Yan, Yangzhige He, Guang-Ming Wang,Yu Dong, Ying Yang, Yi-Min Sun, Yong-Hong Ren, Qiu-Yan Zhao, Xiao-Dan Yang, Li-Ying Wang, Cai-Jun Fu, Miao He, Si-Jin Zhang, Ji-Fen Fu, Hong Liu, Zhi-Cheng Jing
The First Affiliated Hospital of Dali University. Henan University. The Affiliated Hospital of Guizhou Medical University. Yulong People’s Hospital. Shanghai Children’s Medical Center. Peking Union Medical College Hospital. CapitalBio Technology Corporation. Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine.
China
Nature Communications
Nature Commun 2023; 14:
DOI: 10.1038/s41467-023-37527-4
Abstract
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-1α (HIF-1α) 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-1α downregulation might be implicated in the pathogenesis of HAPH.
Category
Class III. Pulmonary Hypertension Associated with Alveolar Hypoxia
Acquired Patient Factors Associated with Pulmonary Vascular Disease
Potential Biomarkers Associated with Pulmonary Vascular Disease
Age Focus: Adult Pulmonary Vascular Disease
Fresh or Filed Publication: Filed (PHiled). Greater than 1-2 years since publication
Article Access
Free PDF File or Full Text Article Available Through PubMed or DOI: Yes