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Li M, Fang Q, Xiao P, Yin Z, Mei G, Wang C, Xiang Y, Zhao X, Qu L, Xu T, Zhang J, Liu K, Li X, Dong H, Xiao R, Zhou R. KHSRP ameliorates acute liver failure by regulating pre-mRNA splicing through its interaction with SF3B1. Cell Death Dis 2024; 15:618. [PMID: 39187547 PMCID: PMC11347664 DOI: 10.1038/s41419-024-06886-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Revised: 06/27/2024] [Accepted: 07/02/2024] [Indexed: 08/28/2024]
Abstract
Acute liver failure (ALF) is characterized by the rapidly progressive deterioration of hepatic function, which, without effective medical intervention, results in high mortality and morbidity. Here, using proteomic and transcriptomic analyses in murine ALF models, we found that the expression of multiple splicing factors was downregulated in ALF. Notably, we found that KH-type splicing regulatory protein (KHSRP) has a protective effect in ALF. Knockdown of KHSRP resulted in dramatic splicing defects, such as intron retention, and led to the exacerbation of liver injury in ALF. Moreover, we demonstrated that KHSRP directly interacts with splicing factor 3b subunit 1 (SF3B1) and enhances the binding of SF3B1 to the intronic branch sites, thereby promoting pre-mRNA splicing. Using splicing inhibitors, we found that Khsrp protects against ALF by regulating pre-mRNA splicing in vivo. Overall, our findings demonstrate that KHSRP is an important splicing activator and promotes the expression of genes associated with ALF progression by interacting with SF3B1; thus, KHSRP could be a possible target for therapeutic intervention in ALF.
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Affiliation(s)
- Mingxuan Li
- Hubei Province Key Laboratory of Allergy and Immunology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
- Department of Medical Parasitology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
| | - Qian Fang
- Hubei Province Key Laboratory of Allergy and Immunology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
- Department of Medical Parasitology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
| | - Pingping Xiao
- Hubei Province Key Laboratory of Allergy and Immunology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
- Department of Medical Parasitology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
- School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei, 442000, China
| | - Zhinang Yin
- Department of Pathophysiology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
| | - Guangbo Mei
- Hubei Province Key Laboratory of Allergy and Immunology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
- Department of Medical Parasitology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
| | - Cheng Wang
- Hubei Province Key Laboratory of Allergy and Immunology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
| | - Ying Xiang
- Department of Pathophysiology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
| | - Xuejun Zhao
- Hubei Province Key Laboratory of Allergy and Immunology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
- Department of Medical Parasitology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
| | - Lihua Qu
- Hubei Province Key Laboratory of Allergy and Immunology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
- Department of Medical Parasitology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
- School of Basic Medical Sciences, Xianning Medical College, Hubei University of Science and Technology, Xianning, Hubei, 437000, China
| | - Tian Xu
- Hubei Province Key Laboratory of Allergy and Immunology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
| | - Jiaxi Zhang
- Hubei Province Key Laboratory of Allergy and Immunology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
- Department of Medical Parasitology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
| | - Kejun Liu
- Hubei Province Key Laboratory of Allergy and Immunology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
- Department of Medical Parasitology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
| | - Xiaoqing Li
- Center for Stem Cell Research and Application, Union Hospital, Tongji Medical School, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China
| | - Huifen Dong
- Hubei Province Key Laboratory of Allergy and Immunology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
- Department of Medical Parasitology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, 430071, China
| | - Ruijing Xiao
- Hubei Province Key Laboratory of Allergy and Immunology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, 430071, China.
- Department of Pathophysiology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, 430071, China.
| | - Rui Zhou
- Hubei Province Key Laboratory of Allergy and Immunology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, 430071, China.
- Department of Medical Parasitology, School of Basic Medical Sciences, Wuhan University, Wuhan, Hubei, 430071, China.
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Ma Y, Li W, Yao Q, Liu Y, Yu J, Zang L, Wang S, Zhou L, Wen S, Luo Y, Li W, Niu X. Harmine ameliorates CCl 4-induced acute liver injury through suppression of autophagy and inflammation. Int Immunopharmacol 2024; 129:111538. [PMID: 38306830 DOI: 10.1016/j.intimp.2024.111538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 01/03/2024] [Accepted: 01/10/2024] [Indexed: 02/04/2024]
Abstract
CCl4-induced acute liver injury (ALI) is characterized by heightened autophagy, inflammation, and oxidative damage. Accumulating evidence suggests that harmine exerts beneficial effects in countering CCl4-induced ALI by mitigating inflammation and oxidative stress. However, the impact of autophagy on CCl4-induced ALI and the protective role of harmine remain unclear. This study aimed to investigate the potential protective effects of harmine against CCl4-induced ALI in mice by suppressing autophagy and inflammation. Male Kunming mice were orally administered harmine or bifendate for seven days. Subsequently, one hour after the final administration, the model group and treatment groups were intraperitoneally injected with CCl4 to induce ALI. The findings revealed that harmine significantly reduced the levels of aspartate aminotransferase (AST) and alanine aminotransferase (ALT) in serum, and ameliorated the liver histopathological changes induced by CCl4. Furthermore, harmine diminished the levels of TNF-α and IL-6, restored the levels of glutathione (GSH) and superoxide dismutase (SOD), and suppressed the production of nitric oxide (NO) and malondialdehyde (MDA) in the liver. Mechanistically, harmine down-regulated LC3B II/I, p38 MAPK, TLR4, and NF-κB levels, while upregulating p62, Bcl-2, Beclin1, ULK1, and p-mTOR expression. In conclusion, harmine mitigated CCl4-induced ALI by inhibiting autophagy and inflammation through the p38 MAPK/mTOR autophagy pathway, the Bcl-2/Beclin1 pathway, and the TLR4/NF-κB pathway.
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Affiliation(s)
- Yajing Ma
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, PR China
| | - Wenqi Li
- School of Chinese Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Qing Yao
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, PR China
| | - Yang Liu
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, PR China
| | - Jinjin Yu
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, PR China
| | - Lulu Zang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, PR China
| | - Siqi Wang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, PR China
| | - Lili Zhou
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, PR China
| | - Sha Wen
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, PR China
| | - Yuzhi Luo
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, PR China
| | - Weifeng Li
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, PR China.
| | - Xiaofeng Niu
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, PR China.
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Qin L, Tan J, Lv X, Zhang J. Vanillic acid alleviates liver fibrosis through inhibiting autophagy in hepatic stellate cells via the MIF/CD74 signaling pathway. Biomed Pharmacother 2023; 168:115673. [PMID: 37857251 DOI: 10.1016/j.biopha.2023.115673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 10/04/2023] [Accepted: 10/06/2023] [Indexed: 10/21/2023] Open
Abstract
MIF/CD74 signaling pathway and autophagy may be closely related to liver fibrosis. Vanillic acid (VA) is likely to have an anti-liver fibrosis effect, although related studies have not been reported. The aim of this study was to verify the role of hepatic stellate cells (HSCs) autophagy and the MIF/CD74 signaling pathway in the pathogenesis of liver fibrosis, and to investigate the effect of VA on liver fibrosis through in vivo and in vitro experiments. Our results showed that VA significantly attenuated CCl4-induced liver fibrosis. The alleviation of liver fibrosis with VA treatment was associated with a reduction of MIF, CD74, α-SMA, LC3B and Collagen 1. In addition, VA, MIF inhibitor (ISO-1) and autophagy inhibitor (3-MA) markedly inhibited the proliferation and migration of HSCs. This study indicates that VA could protect against HSCs activation, proliferation and migration by inhibiting the autophagy in HSCs via the MIF/CD74 signaling pathway so that alleviates liver fibrosis.
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Affiliation(s)
- Lifeng Qin
- Hubei Provincial Key Laboratory of Occurrence and Intervention of Rheumatic Diseases (Hubei Minzu University), Enshi, 445000, Hubei Province, People's Republic of China; Department of Gastroenterology, Minda Hospital of Hubei Minzu University, Enshi, Hubei Province 445000, People's Republic of China
| | - Jiawu Tan
- Department of Gastroenterology, Minda Hospital of Hubei Minzu University, Enshi, Hubei Province 445000, People's Republic of China
| | - Xiaoping Lv
- Departments of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, People's Republic of China
| | - Jiqiao Zhang
- Department of Gastroenterology, Minda Hospital of Hubei Minzu University, Enshi, Hubei Province 445000, People's Republic of China.
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Nguyen BU, Holterman A, Holterman M, Dinh LT. Academic Pediatric Surgery Capacity Building in Vietnam Through PASS, a Pediatric Acute Surgical Support Course. Front Surg 2022; 9:868483. [PMID: 35529908 PMCID: PMC9069233 DOI: 10.3389/fsurg.2022.868483] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 04/04/2022] [Indexed: 01/06/2023] Open
Abstract
Neonatal and pediatric surgical emergencies in Low and Low Middle Income countries remain a significant challenge in combatting the burden and inequities of global health. IPSAC-Vietnam is a small Non-Governmental Organization that has been engaged in a 12-year multi-pronged partnership with several children’s hospitals in Vietnam VN to enhance pediatric surgery capacity. We describe the health care, medical training and emergency system in VN as the background for IPSAC activities and development of Pediatric Acute Surgical Support (PASS) course. The course goal is to prepare health care personnel in the immediate management of neonatal/pediatric life-threatening surgical conditions and road injuries at their first point of entry into Vietnam hospitals. PASS is a horizontal outreach initiative that adopts an interprofessional, multidisciplinary, team-training, train-the-trainers, and outcome-based training approach. PASS can be used as a tool for sustainable horizontal capacity-building by champion leaders at the teaching children’s hospitals and medical universities in developing countries, to strengthen training for pediatric surgical emergencies, to integrate pediatric and pediatric surgical care and to advocate for a comprehensive approach to emergency care of the critically ill child.
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Affiliation(s)
- Bich-Uyen Nguyen
- Department of Pediatric Surgery, Ho Chi Minh University of Medicine and Pharmacy, Ho Chi Minh City, Vietnam
| | - Aixuan Holterman
- Department of Surgery at Peoria and Chicago; Department of Pediatrics at Chicago, University of Illinois College of Medicine at Peoria and Chicago, Chicago, IL, United States
| | - Mark Holterman
- Department of Surgery at Peoria and Chicago; Department of Pediatrics at Chicago, University of Illinois College of Medicine at Peoria and Chicago, Chicago, IL, United States
| | - Le-Thanh Dinh
- Department of Pediatric Surgery, Children’s Hospital 1, Ho Chi Minh City, Vietnam
- Correspondence: L-T Dinh
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