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Cheung C, Ng CY, Lee KL, Wu KX, Chioh FWJ, Tan K, Siau A, Muthiah MD, Chen QF, Tan NS, Ng HH, Dan YY. Endothelial-T cell crosstalk contributes to vascular injury in fatty liver disease. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.3435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Cardiovascular complications are often the fundamental causes of death in non-alcoholic fatty liver disease (NAFLD) patients. While there are known systemic mediators in NAFLD that may induce vascular inflammation, the mechanism of endothelial dysfunction remain understudied. In this work, we harnessed the replicative potential of blood outgrowth endothelial cells (BOECs) to develop personalized cell lines from NAFLD patients and healthy controls. Our transcriptomic analysis showed that the top interactome network enriched in NAFLD BOECs comprised of several C-C and C-X-C chemokine ligands involved in immune cell chemotaxis. We previously reported T cell infiltration in mouse model of non-alcoholic steatohepatitis, and here, we confirmed enhanced endothelial chemokine signatures in arterial histological sections. To elucidate endothelial-immune crosstalk, we performed single-cell analysis on human peripheral blood mononuclear cells and found T cell intensification in NAFLD patients compared to healthy controls. Our immunoprofiling by flow cytometry further revealed that NAFLD patients possessed higher levels CD8+ memory cells. Functionally, T cells, instead of monocytes, adhered more pronouncedly to NAFLD BOECs. In evaluating the CXCL12-CXCR4 axis in chemotaxis, CXCR4 antagonist (AMD3100) substantially modulated the migration of patient-derived CD8+ T cells towards NAFLD BOECs, which was not observed in healthy endothelial-T cell chemotaxis coculture. Finally, we validated NAFLD-associated endothelial dysfunction by enumerating two folds more circulating endothelial cells, a biomarker of vascular injury, in the blood samples of NAFLD patients than healthy controls. Our work provides insights for translation to restore blood vessel health and potentially mitigate adverse vascular events in NAFLD.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Industrial Alignment Fund Pre-Positioning grant from the Agency for Science, Technology and Research, Singapore Endothelial-T cell crosstalk in NAFLD
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Affiliation(s)
- C Cheung
- Nanyang Technological University, Lee Kong Chian School of Medicine, Singapore, Singapore
| | - C Y Ng
- Nanyang Technological University, Lee Kong Chian School of Medicine, Singapore, Singapore
| | - K L Lee
- Nanyang Technological University, Lee Kong Chian School of Medicine, Singapore, Singapore
| | - K X Wu
- Nanyang Technological University, Lee Kong Chian School of Medicine, Singapore, Singapore
| | - F W J Chioh
- Nanyang Technological University, Lee Kong Chian School of Medicine, Singapore, Singapore
| | - K Tan
- Nanyang Technological University, Lee Kong Chian School of Medicine, Singapore, Singapore
| | - A Siau
- Nanyang Technological University, Lee Kong Chian School of Medicine, Singapore, Singapore
| | - M D Muthiah
- National University Health System, Singapore, Singapore
| | - Q F Chen
- Agency for Science, Technology and Research, Singapore, Singapore
| | - N S Tan
- Nanyang Technological University, Lee Kong Chian School of Medicine, Singapore, Singapore
| | - H H Ng
- Agency for Science, Technology and Research, Singapore, Singapore
| | - Y Y Dan
- National University Health System, Singapore, Singapore
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Kew GS, Chen ZJ, Yip AW, Huang YWC, Tan LY, Dan YY, Gowans M, Huang DQ, Lee GH, Lee YM, Lim SG, Low HC, Muthiah MD, Tai BC, Tan PS. Identifying Patients With Cirrhosis Who Might Avoid Screening Endoscopy Based on Serum Albumin and Bilirubin and Platelet Counts. Clin Gastroenterol Hepatol 2021; 19:199-201.e2. [PMID: 31712081 DOI: 10.1016/j.cgh.2019.11.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 10/29/2019] [Accepted: 11/04/2019] [Indexed: 02/07/2023]
Abstract
The presence of gastroesophageal varices is a major complication of portal hypertension associated with significant morbidity and mortality.1 The Baveno VI criteria state that patients with liver stiffness measurement (LSM) <20 kPa by transient elastography (TE) and platelet count >150,000/μL can avoid screening endoscopy for high-risk varix (HRV).2 However, because TE is not widely available, the Baveno VI criteria could not be applied in many clinical settings. As such, we aim to determine a concise clinical criterion as an alternative noninvasive tool to predict absence of HRV among patients with compensated cirrhosis to avoid screening esophagogastroduodenoscopy (EGD).
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Affiliation(s)
- Guan Sen Kew
- Division of Gastroenterology and Hepatology, National University Health System, Singapore.
| | - Zhao Jin Chen
- Investigational Medicine Unit, National University Health System, Singapore
| | - Alexander Wenjun Yip
- Division of Gastroenterology and Hepatology, National University Health System, Singapore
| | - Yu Wei Cheryl Huang
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Li Yin Tan
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yock Young Dan
- Division of Gastroenterology and Hepatology, National University Health System, Singapore
| | - Michelle Gowans
- Division of Gastroenterology and Hepatology, National University Health System, Singapore
| | - Daniel Qingyao Huang
- Division of Gastroenterology and Hepatology, National University Health System, Singapore; Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Guan Huei Lee
- Division of Gastroenterology and Hepatology, National University Health System, Singapore
| | - Yin Mei Lee
- Division of Gastroenterology and Hepatology, National University Health System, Singapore
| | - Seng Gee Lim
- Division of Gastroenterology and Hepatology, National University Health System, Singapore
| | - How Cheng Low
- Division of Gastroenterology and Hepatology, National University Health System, Singapore
| | - Mark Dinesh Muthiah
- Division of Gastroenterology and Hepatology, National University Health System, Singapore
| | - Bee Choo Tai
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Saw Swee Hock School of Public Health, National University of Singapore, Singapore
| | - Poh Seng Tan
- Division of Gastroenterology and Hepatology, National University Health System, Singapore
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