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Zhang W, Lin W, Zeng X, Zhang M, Chen Q, Tang Y, Sun J, Liang B, Zha L, Yu Z. FUT8-Mediated Core Fucosylation Promotes the Pulmonary Vascular Remodeling in Pulmonary Arterial Hypertension. Aging Dis 2023; 14:1927-1944. [PMID: 37196106 PMCID: PMC10529761 DOI: 10.14336/ad.2023.0218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 02/18/2023] [Indexed: 05/19/2023] Open
Abstract
Pulmonary arterial hypertension (PAH) is a progressive cardiopulmonary disease with unclear underlying molecular mechanisms and limited therapeutic options. This study aimed to explore the role of core fucosylation and the only glycosyltransferase FUT8 in PAH. We observed increased core fucosylation in a monocrotaline (MCT)-induced PAH rat model and isolated rat pulmonary artery smooth muscle cells (PASMCs) treated with platelet-derived growth factor-BB (PDGF-BB). We found that 2-fluorofucose (2FF), a drug used to inhibit core fucosylation, improved hemodynamics and pulmonary vascular remodeling in MCT-induced PAH rats. In vitro, 2FF effectively restrains the proliferation, migration, and phenotypic switching of PASMCs and promotes apoptosis. Compared with controls, serum FUT8 concentration in PAH patients and MCT-induced rats was significantly elevated. FUT8 expression appeared increased in the lung tissues of PAH rats, and the co-localization of FUT8 with α-SMA was also observed. SiRNA was used to knockdown FUT8 in PASMCs (siFUT8). After effectively silencing FUT8 expression, phenotypic changes induced in PASMCs by PDGF-BB stimulation were alleviated. FUT8 activated the AKT pathway, while the admission of AKT activator SC79 could partially counteract the negative effect of siFUT8 on the proliferation, apoptotic resistance, and phenotypic switching of PASMCs, which may be involved in the core fucosylation of vascular endothelial growth factor receptor (VEGFR). Our research confirmed the critical role of FUT8 and its mediated core fucosylation in pulmonary vascular remodeling in PAH, providing a potential novel therapeutic target for PAH.
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Affiliation(s)
- Wen Zhang
- Department of Cardiology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Wenchao Lin
- Department of nephrology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiaofang Zeng
- Department of Cardiology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Mengqiu Zhang
- Department of Cardiology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qin Chen
- Department of Cardiology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yiyang Tang
- Department of Cardiology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jing Sun
- Department of Cardiology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Benhui Liang
- Department of Cardiology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Lihuang Zha
- Department of Cardiology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders (Xiang Ya), Changsha, Hunan, China
| | - Zaixin Yu
- Department of Cardiology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders (Xiang Ya), Changsha, Hunan, China
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Abstract
Pericytes are specialized cells located in close proximity to endothelial cells within the microvasculature. They play a crucial role in regulating blood flow, stabilizing vessel walls, and maintaining the integrity of the blood-brain barrier. The loss of pericytes has been associated with the development and progression of various diseases, such as diabetes, Alzheimer's disease, sepsis, stroke, and traumatic brain injury. This review examines the detection of pericyte loss in different diseases, explores the methods employed to assess pericyte coverage, and elucidates the potential mechanisms contributing to pericyte loss in these pathological conditions. Additionally, current therapeutic strategies targeting pericytes are discussed, along with potential future interventions aimed at preserving pericyte function and promoting disease mitigation.
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Affiliation(s)
| | - Hongkuan Fan
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC 29425, USA;
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Liu D, Xu C, Jiang L, Zhu X. Pulmonary endogenous progenitor stem cell subpopulation: Physiology, pathogenesis, and progress. JOURNAL OF INTENSIVE MEDICINE 2023; 3:38-51. [PMID: 36789358 PMCID: PMC9924023 DOI: 10.1016/j.jointm.2022.08.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 07/09/2022] [Accepted: 08/13/2022] [Indexed: 06/18/2023]
Abstract
Lungs are structurally and functionally complex organs consisting of diverse cell types from the proximal to distal axis. They have direct contact with the external environment and are constantly at risk of various injuries. Capable to proliferate and differentiate, pulmonary endogenous progenitor stem cells contribute to the maintenance of lung structure and function both under homeostasis and following injuries. Discovering candidate pulmonary endogenous progenitor stem cell types and underlying regenerative mechanisms provide insights into therapeutic strategy development for lung diseases. In this review, we reveal their compositions, roles in lung disease pathogenesis and injury repair, and the underlying mechanisms. We further underline the advanced progress in research approach and potential therapy for lung regeneration. We also demonstrate the feasibility and prospects of pulmonary endogenous stem cell transplantation for lung disease treatment.
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Affiliation(s)
- Di Liu
- Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Chufan Xu
- Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Lai Jiang
- Department of Anesthesiology and Surgical Intensive Care Unit, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Xiaoyan Zhu
- Department of Physiology, Navy Medical University, 800 Xiangyin Road, Shanghai 200433, China
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Sun W, Jing X, Yang X, Huang H, Luo Q, Xia S, Wang P, Wang N, Zhang Q, Guo J, Xu Z. Regulation of the IGF1 signaling pathway is involved in idiopathic pulmonary fibrosis induced by alveolar epithelial cell senescence and core fucosylation. Aging (Albany NY) 2021; 13:18852-18869. [PMID: 34329195 PMCID: PMC8351684 DOI: 10.18632/aging.203335] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 07/01/2021] [Indexed: 12/16/2022]
Abstract
Idiopathic pulmonary fibrosis (IPF) mainly occurs in elderly people over the age of sixty. IPF pathogenesis is associated with alveolar epithelial cells (AECs) senescence. Activation of PI3K/AKT signaling induced by insulin-like growth factor 1 (IGF1) participates in AEC senescence and IPF by releasing CTGF, TGF-β1, and MMP9. Our previous study demonstrated that core fucosylation (CF) modification, catalyzed by a specific core fucosyltransferase (FUT8) can regulate the activation of multiple signaling pathways, and inhibiting CF can alleviate pulmonary fibrosis in mice induced by bleomycin. However, whether CF is involved in IGF1-mediated AEC senescence in IPF remains unclear. In this study, we found that the IGF1/PI3K/AKT signaling pathway was activated in IPF lung tissue. Meanwhile, CF was present in senescent AECs. We also showed that IGF1 could induce AECs senescence with enhanced CF in vivo and in vitro. Inhibiting CF alleviated AECs senescence and pulmonary fibrosis induced by IGF1. In addition, activation of IGF1/PI3K/AKT signaling depends on CF. In conclusion, this study confirmed that CF is an important target regulating the IGF1 signaling pathway in AEC senescence and IPF, which might be a candidate target to treat IPF in the future.
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Affiliation(s)
- Wei Sun
- Department of Respiratory and Critical Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Medical Research Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaoyan Jing
- Department of Respiratory and Critical Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaoyu Yang
- Department of Respiratory and Critical Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hui Huang
- Department of Respiratory and Critical Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qun Luo
- State Key Laboratory of Respiratory Disease, National Clinical Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Shu Xia
- State Key Laboratory of Respiratory Disease, National Clinical Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Ping Wang
- Department of Respiratory and Critical Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Na Wang
- Department of Respiratory and Critical Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qian Zhang
- Department of Respiratory and Critical Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jian Guo
- Department of Respiratory and Critical Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zuojun Xu
- Department of Respiratory and Critical Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Li P, Wu Y, Goodwin AJ, Halushka PV, Wilson CL, Schnapp LM, Fan H. Generation of a new immortalized human lung pericyte cell line: a promising tool for human lung pericyte studies. J Transl Med 2021; 101:625-635. [PMID: 33446892 PMCID: PMC8068576 DOI: 10.1038/s41374-020-00524-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 11/27/2020] [Accepted: 11/30/2020] [Indexed: 11/16/2022] Open
Abstract
Pericytes apposed to the capillary endothelium are known to stabilize and promote endothelial integrity. Recent studies indicate that lung pericytes play a prominent role in lung physiology, and they are involved in the development of various lung diseases including lung injury in sepsis, pulmonary fibrosis, asthma, and pulmonary hypertension. Accordingly, human lung pericyte studies are important for understanding the mechanistic basis of lung physiology and pathophysiology; however, human lung pericytes can only be cultured for a few passages and no immortalized human lung pericyte cell line has been established so far. Thus, our study aims to establish an immortalized human lung pericyte cell line. Developed using SV40 large T antigen lentivirus, immortalized pericytes exhibit stable SV40T expression, sustained proliferation, and have significantly higher telomerase activity compared to normal human lung pericytes. In addition, these cells retained pericyte characteristics, marked by similar morphology, and expression of pericyte cell surface markers such as PDGFRβ, NG2, CD44, CD146, CD90, and CD73. Furthermore, similar to that of primary pericytes, immortalized pericytes promoted endothelial cell tube formation and responded to different stimuli. Our previous data showed that friend leukemia virus integration 1 (Fli-1), a member of the ETS transcription factor family, is a key regulator that modulates inflammatory responses in mouse lung pericytes. We further demonstrated that Fli-1 regulates inflammatory responses in immortalized human lung pericytes. To summarize, we successfully established an immortalized human lung pericyte cell line, which serves as a promising tool for in vitro pericyte studies to understand human lung pericyte physiology and pathophysiology.
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Affiliation(s)
- Pengfei Li
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Yan Wu
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Andrew J Goodwin
- Division of Pulmonary, Critical Care, Allergy, and Sleep Medicine, Department of Medicine, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Perry V Halushka
- Department of Medicine, Medical University of South Carolina, Charleston, SC, 29425, USA
- Department of Pharmacology, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Carole L Wilson
- Division of Pulmonary, Critical Care, Allergy, and Sleep Medicine, Department of Medicine, Medical University of South Carolina, Charleston, SC, 29425, USA
- Department of Medicine, School of Medicine and Public Health, University of Wisconsin, Madison, WI, 53705, USA
| | - Lynn M Schnapp
- Division of Pulmonary, Critical Care, Allergy, and Sleep Medicine, Department of Medicine, Medical University of South Carolina, Charleston, SC, 29425, USA
- Department of Medicine, School of Medicine and Public Health, University of Wisconsin, Madison, WI, 53705, USA
| | - Hongkuan Fan
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC, 29425, USA.
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC, 29425, USA.
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Kuang M, Wu H, Hu L, Guo X, He D, Liu B, Chen M, Gu J, Gu J, Zeng X, Ruan Y. Up-regulation of FUT8 inhibits TGF-β1-induced activation of hepatic stellate cells during liver fibrogenesis. Glycoconj J 2021; 38:77-87. [PMID: 33608773 DOI: 10.1007/s10719-021-09975-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 01/28/2021] [Accepted: 02/03/2021] [Indexed: 12/11/2022]
Abstract
Liver fibrosis is a continuous wound healing response caused by chronic liver injury, and the activation of hepatic stellate cells (HSCs) is considered as the main event for it. Core fucosylation catalyzed by FUT8 refers to adding the fucosyl moiety to the innermost GlcNAc residue of N-linked oligosaccharides and is involved in many biological processes such as cell differentiation, migration, and signaling transduction. Aberrant core fucosylation is associated with a variety of diseases including cardiovascular disease, tumors and neuroinflammation, but much less is understood in liver fibrosis. Herein, we reported FUT8 mRNA level was increased in patients with liver fibrosis from GEO database and positively correlated with fibrosis progression. FUT8 expression and the core fucosylation were also elevated in TAA-induced mouse liver fibrosis model, and were mainly distributed in the fibrous septum of mouse liver. TGF-β1, as the most pro-fibrogenic cytokine, could promote the expression of FUT8 and total core fucosylation levels in HSCs in vitro. However, up-regulation of FUT8 in turn inhibited TGF-β1-induced trans-differentiation, migration and pro-fibrogenic signaling pathways in HSCs. In conclusion, our results suggest that the up-regulation of FUT8 inhibits TGF-β1-induced HSC activation in a negative feedback loop, and provide potential new therapeutic strategy for liver fibrosis by targeting FUT8.
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Affiliation(s)
- Mengzhen Kuang
- NHC Key Laboratory of Glycoconjugate Research, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
| | - Hao Wu
- NHC Key Laboratory of Glycoconjugate Research, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
| | - Lan Hu
- NHC Key Laboratory of Glycoconjugate Research, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
| | - Xinying Guo
- NHC Key Laboratory of Glycoconjugate Research, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
| | - Daochuan He
- NHC Key Laboratory of Glycoconjugate Research, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
| | - Bo Liu
- NHC Key Laboratory of Glycoconjugate Research, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
| | - Mengqian Chen
- NHC Key Laboratory of Glycoconjugate Research, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
| | - Jie Gu
- NHC Key Laboratory of Glycoconjugate Research, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
| | - Jianxin Gu
- NHC Key Laboratory of Glycoconjugate Research, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
| | - Xiaoqing Zeng
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, 200032, People's Republic of China.
| | - Yuanyuan Ruan
- NHC Key Laboratory of Glycoconjugate Research, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China.
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, People's Republic of China.
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