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Bai B, Yang W, Fu Y, Foon HL, Tay WT, Yang K, Luo C, Gunaratne J, Lee P, Zile MR, Xu A, Chin CW, Lam CS, Han W, Wang Y. Seipin Knockout Mice Develop Heart Failure With Preserved Ejection Fraction. JACC Basic Transl Sci 2019; 4:924-937. [PMID: 31909301 PMCID: PMC6939002 DOI: 10.1016/j.jacbts.2019.07.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 07/15/2019] [Accepted: 07/16/2019] [Indexed: 01/08/2023]
Abstract
The lean diabetic patients with heart failure with preserved ejection fraction (HFpEF) in Asia suffer from adverse clinical outcomes and poor life quality. The suitable animal models are urgently needed for mechanistic study and therapeutic innovations. Our study reports that lipodystrophic mice with seipin depletion are lean, diabetic, and recapitulate major manifestations of clinical HFpEF, thereby clarifying that lean diabetes per se may produce HFpEF characteristics. We further demonstrate that increased cardiac titin phosphorylation and reactive interstitial fibrosis associated with neutrophil extracellular traps lead to left ventricular stiffness and suggest that both pathways may be potential therapeutic targets in Asian HFpEF patients.
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Key Words
- Ctrl, control (mice)
- EDPVR, end-diastolic pressure–volume relationship
- HFpEF, heart failure with preserved ejection fraction
- IQR, interquartile range
- LA, left atrial
- LV, left ventricular
- NET, neutrophil extracellular trap
- PEVK, proline, glutamate, valine, and lysine
- SKO, seipin knockout
- fibrosis
- heart failure with preserved ejection fraction
- neutrophil
- seipin
- titin
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Affiliation(s)
- Bo Bai
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research, Singapore
- State Key Laboratory of Pharmaceutical Biotechnology and Department of Pharmacology and Pharmacy, The University of Hong Kong, Hong Kong, China
| | - Wulin Yang
- Anhui Province Key Laboratory of Medical Physics and Technology, Center of Medical Physics and Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China
- Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, China
| | - Yanyun Fu
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research, Singapore
| | - Hannah Lee Foon
- Translational Biomedical Proteomics, Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore
| | - Wan Ting Tay
- National Heart Centre Singapore and Duke-National University of Singapore, Singapore
| | - Kangmin Yang
- State Key Laboratory of Pharmaceutical Biotechnology and Department of Pharmacology and Pharmacy, The University of Hong Kong, Hong Kong, China
| | - Cuiting Luo
- State Key Laboratory of Pharmaceutical Biotechnology and Department of Pharmacology and Pharmacy, The University of Hong Kong, Hong Kong, China
| | - Jayantha Gunaratne
- Translational Biomedical Proteomics, Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore
| | - Philip Lee
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research, Singapore
| | - Michael R. Zile
- Division of Cardiology, Department of Medicine, Medical University of South Carolina, Charleston, South Carolina
- Ralph H. Johnson Department of Veterans Affairs Medical Center, Charleston, South Carolina
| | - Aimin Xu
- State Key Laboratory of Pharmaceutical Biotechnology and Department of Pharmacology and Pharmacy, The University of Hong Kong, Hong Kong, China
- Department of Medicine, The University of Hong Kong, Hong Kong, China
| | - Calvin W.L. Chin
- National Heart Centre Singapore and Duke-National University of Singapore, Singapore
| | - Carolyn S.P. Lam
- National Heart Centre Singapore and Duke-National University of Singapore, Singapore
| | - Weiping Han
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research, Singapore
| | - Yu Wang
- State Key Laboratory of Pharmaceutical Biotechnology and Department of Pharmacology and Pharmacy, The University of Hong Kong, Hong Kong, China
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