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Maali Y, Flores Molina M, Khedr O, Abdelnabi MN, Dion J, Hassan GS, Shoukry NH. Two transcriptionally and functionally distinct waves of neutrophils during mouse acute liver injury. Hepatol Commun 2024; 8:e0459. [PMID: 38896080 PMCID: PMC11186811 DOI: 10.1097/hc9.0000000000000459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 03/28/2024] [Indexed: 06/21/2024] Open
Abstract
BACKGROUND Neutrophils are key mediators of inflammation during acute liver injury (ALI). Emerging evidence suggests that they also contribute to injury resolution and tissue repair. However, the different neutrophil subsets involved in these processes and their kinetics are undefined. Herein, we characterized neutrophil kinetics and heterogeneity during ALI. METHODS We used the carbon tetrachloride model of ALI and employed flow cytometry, tissue imaging, and quantitative RT-PCR to characterize intrahepatic neutrophils during the necroinflammatory early and late repair phases of the wound healing response to ALI. We FACS sorted intrahepatic neutrophils at key time points and examined their transcriptional profiles using RNA-sequencing. Finally, we evaluated neutrophil protein translation, mitochondrial function and metabolism, reactive oxygen species content, and neutrophil extracellular traps generation. RESULTS We detected 2 temporarily distinct waves of neutrophils during (1) necroinflammation (at 24 hours after injury) and (2) late repair (at 72 hours). Early neutrophils were proinflammatory, characterized by: (1) upregulation of inflammatory cytokines, (2) activation of the noncanonical NF-κB pathway, (3) reduction of protein translation, (4) decreased oxidative phosphorylation, and (5) higher propensity to generate reactive oxygen species and neutrophil extracellular traps. In contrast, late neutrophils were prorepair and enriched in genes and pathways associated with tissue repair and angiogenesis. Finally, early proinflammatory neutrophils were characterized by the expression of a short isoform of C-X-C chemokine receptor 5, while the late prorepair neutrophils were characterized by the expression of C-X-C chemokine receptor 4. CONCLUSIONS This study underscores the phenotypic and functional heterogeneity of neutrophils and their dual role in inflammation and tissue repair during ALI.
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Affiliation(s)
- Yousef Maali
- Immunopathology Axis, Centre de Recherche du Centre hospitalier de l’Université de Montréal (CRCHUM), Montréal, Quebec, Canada
- Département de microbiologie, infectiologie et immunologie, Université de Montréal, Montréal, Quebec, Canada
| | - Manuel Flores Molina
- Immunopathology Axis, Centre de Recherche du Centre hospitalier de l’Université de Montréal (CRCHUM), Montréal, Quebec, Canada
- Département de microbiologie, infectiologie et immunologie, Université de Montréal, Montréal, Quebec, Canada
| | - Omar Khedr
- Immunopathology Axis, Centre de Recherche du Centre hospitalier de l’Université de Montréal (CRCHUM), Montréal, Quebec, Canada
| | - Mohamed N. Abdelnabi
- Immunopathology Axis, Centre de Recherche du Centre hospitalier de l’Université de Montréal (CRCHUM), Montréal, Quebec, Canada
- Département de microbiologie, infectiologie et immunologie, Université de Montréal, Montréal, Quebec, Canada
| | - Jessica Dion
- Immunopathology Axis, Centre de Recherche du Centre hospitalier de l’Université de Montréal (CRCHUM), Montréal, Quebec, Canada
| | - Ghada S. Hassan
- Immunopathology Axis, Centre de Recherche du Centre hospitalier de l’Université de Montréal (CRCHUM), Montréal, Quebec, Canada
| | - Naglaa H. Shoukry
- Immunopathology Axis, Centre de Recherche du Centre hospitalier de l’Université de Montréal (CRCHUM), Montréal, Quebec, Canada
- Departement de médecine, Université de Montréal, Montréal, Quebec, Canada
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Zhang Y, Zhang X, Zhang M, Zhang F, Chen T, Zha J, Shen Q, Wang D, Hou C. Hepatocytes-derived Prdx1 regulates macrophage phenotypes via TLR4 activation in acute liver injury. Int Immunopharmacol 2024; 127:111439. [PMID: 38159556 DOI: 10.1016/j.intimp.2023.111439] [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: 10/17/2023] [Revised: 12/15/2023] [Accepted: 12/21/2023] [Indexed: 01/03/2024]
Abstract
Acute liver injury (ALI) is a significant causative factor for multiple hepatic diseases. The excessive inflammatory response triggers proinflammatory immune cells recruitment, infiltration and differentiation, further contributing to inflammatory injuries in liver. As a proinflammatory factor, circulating Peroxiredoxin 1 (Prdx1) is elevated in ALI patients and mice. In this study, through carbon tetrachloride (CCl4) and cecal puncture and ligation (CLP)-induced liver injury mice model, we found hepatocytes-derived Prdx1 expression was increased in ALI. After AAV8-Prdx1-mediated Prdx1 knockdown, CCl4 and CLP-induced ALI was alleviated, along with the reduced proinflammatory cytokines, suppressed myeloid cells recruitment, decreased proportions of hepatic macrophages and neutrophils, restrained proinflammatory macrophage differentiation and infiltration. Mechanistically, hepatocyte-derived Prdx1 regulated macrophages through paracrine activation of the TLR4 signal. Our data support the immune and inflammatory regulatory role of Prdx1 in ALI pathological process to suggest its potential therapeutic application and clinical value.
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Affiliation(s)
- Yujing Zhang
- School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Xinru Zhang
- School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Mingxun Zhang
- The First Affiliated Hospital of University of Science and Technology of China, China
| | - Fanrong Zhang
- School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Tong Chen
- School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Jingjing Zha
- School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Qiying Shen
- The First Affiliated Hospital of Anhui Medical University, China.
| | - Dong Wang
- School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China.
| | - Chao Hou
- School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China.
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Ni Y, Lu M, Li M, Hu X, Li F, Wang Y, Xue D. Unraveling the underlying pathogenic factors driving nonalcoholic steatohepatitis and hepatocellular carcinoma: an in-depth analysis of prognostically relevant gene signatures in hepatocellular carcinoma. J Transl Med 2024; 22:72. [PMID: 38238845 PMCID: PMC10795264 DOI: 10.1186/s12967-024-04885-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Accepted: 01/11/2024] [Indexed: 01/22/2024] Open
Abstract
BACKGROUND Nonalcoholic steatohepatitis (NASH) is a progressive manifestation of nonalcoholic fatty liver disease (NAFLD) that can lead to fibrosis, cirrhosis, and hepatocellular carcinoma (HCC). Despite the growing knowledge of NASH and HCC, the association between the two conditions remains to be fully explored. Bioinformatics has emerged as a valuable approach for identifying disease-specific feature genes, enabling advancements in disease prediction, prevention, and personalized treatment strategies. MATERIALS AND METHODS In this study, we utilized CellChat, copy number karyotyping of aneuploid tumors (CopyKAT), consensus Non-negative Matrix factorization (cNMF), Gene set enrichment analysis (GSEA), Gene set variation analysis (GSVA), Monocle, spatial co-localization, single sample gene set enrichment analysis (ssGSEA), Slingshot, and the Scissor algorithm to analyze the cellular and immune landscape of NASH and HCC. Through the Scissor algorithm, we identified three cell types correlating with disease phenotypic features and subsequently developed a novel clinical prediction model using univariate, LASSO, and multifactor Cox regression. RESULTS Our results revealed that macrophages are a significant pathological factor in the development of NASH and HCC and that the macrophage migration inhibitory factor (MIF) signaling pathway plays a crucial role in cellular crosstalk at the molecular level. We deduced three prognostic genes (YBX1, MED8, and KPNA2), demonstrating a strong diagnostic capability in both NASH and HCC. CONCLUSION These findings shed light on the pathological mechanisms shared between NASH and HCC, providing valuable insights for the development of novel clinical strategies.
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Affiliation(s)
- Yuan Ni
- College of Integrated Chinese and Western Medicine (College of Life Sciences), Anhui University of Chinese Medicine, Hefei, China
| | - Maoqing Lu
- College of Integrated Chinese and Western Medicine (College of Life Sciences), Anhui University of Chinese Medicine, Hefei, China
| | - Ming Li
- College of Integrated Chinese and Western Medicine (College of Life Sciences), Anhui University of Chinese Medicine, Hefei, China
| | - Xixi Hu
- College of Integrated Chinese and Western Medicine (College of Life Sciences), Anhui University of Chinese Medicine, Hefei, China
| | - Feng Li
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China.
| | - Yan Wang
- College of Integrated Chinese and Western Medicine (College of Life Sciences), Anhui University of Chinese Medicine, Hefei, China.
| | - Dong Xue
- College of Integrated Chinese and Western Medicine (College of Life Sciences), Anhui University of Chinese Medicine, Hefei, China.
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Xie D, Ouyang S. The role and mechanisms of macrophage polarization and hepatocyte pyroptosis in acute liver failure. Front Immunol 2023; 14:1279264. [PMID: 37954583 PMCID: PMC10639160 DOI: 10.3389/fimmu.2023.1279264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 10/16/2023] [Indexed: 11/14/2023] Open
Abstract
Acute liver failure (ALF) is a severe liver disease caused by disruptions in the body's immune microenvironment. In the early stages of ALF, Kupffer cells (KCs) become depleted and recruit monocytes derived from the bone marrow or abdomen to replace the depleted macrophages entering the liver. These monocytes differentiate into mature macrophages, which are activated in the immune microenvironment of the liver and polarized to perform various functions. Macrophage polarization can occur in two directions: pro-inflammatory M1 macrophages and anti-inflammatory M2 macrophages. Controlling the ratio and direction of M1 and M2 in ALF can help reduce liver injury. However, the liver damage caused by pyroptosis should not be underestimated, as it is a caspase-dependent form of cell death. Inhibiting pyroptosis has been shown to effectively reduce liver damage induced by ALF. Furthermore, macrophage polarization and pyroptosis share common binding sites, signaling pathways, and outcomes. In the review, we describe the role of macrophage polarization and pyroptosis in the pathogenesis of ALF. Additionally, we preliminarily explore the relationship between macrophage polarization and pyroptosis, as well as their effects on ALF.
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Affiliation(s)
| | - Shi Ouyang
- Key Laboratory of Biological Targeting Diagnosis, Therapy and Rehabilitation of Guangdong Higher Education Institutes, Department of Infectious Diseases, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
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Hassan GS, Flores Molina M, Shoukry NH. The multifaceted role of macrophages during acute liver injury. Front Immunol 2023; 14:1237042. [PMID: 37736102 PMCID: PMC10510203 DOI: 10.3389/fimmu.2023.1237042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 08/15/2023] [Indexed: 09/23/2023] Open
Abstract
The liver is situated at the interface of the gut and circulation where it acts as a filter for blood-borne and gut-derived microbes and biological molecules, promoting tolerance of non-invasive antigens while driving immune responses against pathogenic ones. Liver resident immune cells such as Kupffer cells (KCs), a subset of macrophages, maintain homeostasis under physiological conditions. However, upon liver injury, these cells and others recruited from circulation participate in the response to injury and the repair of tissue damage. Such response is thus spatially and temporally regulated and implicates interconnected cells of immune and non-immune nature. This review will describe the hepatic immune environment during acute liver injury and the subsequent wound healing process. In its early stages, the wound healing immune response involves a necroinflammatory process characterized by partial depletion of resident KCs and lymphocytes and a significant infiltration of myeloid cells including monocyte-derived macrophages (MoMFs) complemented by a wave of pro-inflammatory mediators. The subsequent repair stage includes restoring KCs, initiating angiogenesis, renewing extracellular matrix and enhancing proliferation/activation of resident parenchymal and mesenchymal cells. This review will focus on the multifaceted role of hepatic macrophages, including KCs and MoMFs, and their spatial distribution and roles during acute liver injury.
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Affiliation(s)
- Ghada S. Hassan
- Centre de Recherche du Centre hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC, Canada
| | - Manuel Flores Molina
- Centre de Recherche du Centre hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC, Canada
- Département de microbiologie, infectiologie et immunologie, Faculté de médecine, Université de Montréal, Montréal, QC, Canada
| | - Naglaa H. Shoukry
- Centre de Recherche du Centre hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC, Canada
- Département de médecine, Faculté de médecine, Université de Montréal, Montréal, QC, Canada
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Ito Y, Hosono K, Amano H. Responses of hepatic sinusoidal cells to liver ischemia–reperfusion injury. Front Cell Dev Biol 2023; 11:1171317. [PMID: 37082623 PMCID: PMC10112669 DOI: 10.3389/fcell.2023.1171317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 03/27/2023] [Indexed: 04/07/2023] Open
Abstract
The liver displays a remarkable regenerative capacity in response to acute liver injury. In addition to the proliferation of hepatocytes during liver regeneration, non-parenchymal cells, including liver macrophages, liver sinusoidal endothelial cells (LSECs), and hepatic stellate cells (HSCs) play critical roles in liver repair and regeneration. Liver ischemia–reperfusion injury (IRI) is a major cause of increased liver damage during liver resection, transplantation, and trauma. Impaired liver repair increases postoperative morbidity and mortality of patients who underwent liver surgery. Successful liver repair and regeneration after liver IRI requires coordinated interplay and synergic actions between hepatic resident cells and recruited cell components. However, the underlying mechanisms of liver repair after liver IRI are not well understood. Recent technological advances have revealed the heterogeneity of each liver cell component in the steady state and diseased livers. In this review, we describe the progress in the biology of liver non-parenchymal cells obtained from novel technological advances. We address the functional role of each cell component in response to liver IRI and the interactions between diverse immune repertoires and non-hematopoietic cell populations during the course of liver repair after liver IRI. We also discuss how these findings can help in the design of novel therapeutic approaches. Growing insights into the cellular interactions during liver IRI would enhance the pathology of liver IRI understanding comprehensively and further develop the strategies for improvement of liver repair.
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