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Bozhkov AI, Akzhyhitov RA, Bilovetska SG, Ivanov EG, Dobrianska NI, Bondar AY. The Effect of Retinol Acetate on Liver Fibrosis Depends on the Temporal Features of the Development of Pathology. J Clin Exp Hepatol 2024; 14:101338. [PMID: 38264572 PMCID: PMC10801314 DOI: 10.1016/j.jceh.2023.101338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 12/19/2023] [Indexed: 01/25/2024] Open
Abstract
Background The effect of vitamin A on the manifestations of liver fibrosis is controversial and establishing the causes of its multidirectional influence is an urgent problem. In the work, the functional characteristics of the liver with Cu-induced fibrosis were determined after the restoration of vitamin A to the control level at the F0/F1 stage. Methods In animals with liver fibrosis, classical indicators of physiology, functional activity of the liver, histological, and hematological characteristics were determined; the content of calcium and ROS was determined in bone marrow cells. Results It was shown that in the liver with Cu-induced fibrosis, the restoration of vitamin A content to control values after per os injections of a retinol acetate solution at a dose of 0.10 mg (300 IU)/100 g of body weight in the early stages of this pathology development (Fо/F1) was accompanied by: a decrease in the number of immunocompetent cells in the bloodstream to control values; normalization of the amount of calcium ions and ROS in bone marrow cells; restoration to the control level of activity of alkaline phosphatase; an increase in the number of binuclear hepatocytes; and restoration of the dynamics of body weight growth in experimental animals, even against the background of the ongoing action of the hepatotoxic factor. Conclusion We came to the conclusion that the multidirectional action of vitamin A, which occurs in liver fibrosis, depends not only on the concentration of vitamin A in the liver but also on temporal characteristics of cellular and metabolic links involved in the adaptive response formation. It was suggested that knowledge of the initial temporal metabolic characteristics and the amount of vitamin A in the liver, taking into account the stages of fibrosis development, can be an effective way to restore the altered homeostatic parameters of the body.
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Affiliation(s)
- Anatoly I. Bozhkov
- Biology Research Institute V. N. Karazin Kharkiv National University, 4 Svobody Sq., Kharkiv, 61022, Ukraine
| | - Rustam A. Akzhyhitov
- Biology Research Institute V. N. Karazin Kharkiv National University, 4 Svobody Sq., Kharkiv, 61022, Ukraine
| | - Svitlana G. Bilovetska
- Biology Research Institute V. N. Karazin Kharkiv National University, 4 Svobody Sq., Kharkiv, 61022, Ukraine
| | - Evgeny G. Ivanov
- Biology Research Institute V. N. Karazin Kharkiv National University, 4 Svobody Sq., Kharkiv, 61022, Ukraine
| | - Nataliia I. Dobrianska
- Biology Research Institute V. N. Karazin Kharkiv National University, 4 Svobody Sq., Kharkiv, 61022, Ukraine
| | - Anastasiia Yu Bondar
- Biology Research Institute V. N. Karazin Kharkiv National University, 4 Svobody Sq., Kharkiv, 61022, Ukraine
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2
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Ishaq MU, Kunwar D, Qadeer A, Komel A, Safi A, Malik A, Malik L, Akbar A. Effect of vitamin A on maternal, fetal, and neonatal outcomes: An overview of deficiency, excessive intake, and intake recommendations. Nutr Clin Pract 2024; 39:373-384. [PMID: 38030585 DOI: 10.1002/ncp.11096] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 10/29/2023] [Accepted: 11/05/2023] [Indexed: 12/01/2023] Open
Abstract
Vitamin A imbalance during pregnancy and lactation is a global public health concern with potentially negative consequences for fetuses and neonates. Inadequate vitamin A intake during this critical period can lead to anemia, weakened immune function, night blindness, and increased susceptibility to infections. Conversely, excessive intake of vitamin A can result in birth defects, hypercalcemia, and psychiatric symptoms. This review aims to identify risk factors contributing to vitamin A deficiency in pregnant women and its impact on maternal, fetal, and neonatal outcomes. It also examines the effects of high-dose vitamin A supplementation during pregnancy on offspring health. By analyzing existing literature and recommendations, the review emphasizes the significance of vitamin A in the development of various body systems and organs. It provides a comprehensive overview of the effects of vitamin A during pregnancy and lactation, encompassing deficiencies, excessive intake, and supplementation guidelines. The need for further research in this field is highlighted. In conclusion, maintaining a balanced vitamin A status is crucial during pregnancy to promote better outcomes for fetuses and newborns. Effective monitoring and intervention strategies are essential to address vitamin A deficiency and excess in pregnant women, thereby improving fetal and neonatal health.
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Affiliation(s)
| | - Digbijay Kunwar
- Department of Medicine, Nishtar Medical University, Multan, Pakistan
| | - Abdul Qadeer
- Department of Medicine, Nishtar Medical University, Multan, Pakistan
| | - Aqsa Komel
- Department of Medicine, Nishtar Medical University, Multan, Pakistan
| | - Adnan Safi
- Department of Medicine, Lahore General Hospital, Lahore, Pakistan
| | - Aqsa Malik
- Department of Medicine, Fatima Memorial College of Medicine and Dentistry, Lahore, Pakistan
| | - Linta Malik
- Department of Medicine, Nishtar Medical University, Multan, Pakistan
| | - Anum Akbar
- Department of Pediatrics, University of Nebraska Medical Centre, Omaha, Nebraska, USA
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3
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Chen H, Jin C, Xie L, Wu J. Succinate as a signaling molecule in the mediation of liver diseases. Biochim Biophys Acta Mol Basis Dis 2024; 1870:166935. [PMID: 37976628 DOI: 10.1016/j.bbadis.2023.166935] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 10/25/2023] [Accepted: 10/27/2023] [Indexed: 11/19/2023]
Abstract
Succinate, one of the intermediates of the tricarboxylic acid (TCA) cycle, plays an essential role in the metabolism of mitochondria and the production of energy, and is considered as a signaling molecule in metabolism as well as in initiation and progression of hepatic diseases. Of note, succinate activates a downstream signaling pathway through GPR91, and elicits a variety of intracellular responses, such as succinylation, production of reactive oxygen species (ROS), stabilization of hypoxia-inducible factor-1α (HIF-1α), and significant impact in cellular metabolism because of the pivotal role in the TCA cycle. Therefore, it is intriguing to deeply elucidate signaling mechanisms of succinate in hepatic fibrosis, metabolic reprogramming in inflammatory or immune responses, as well as carcinogenesis. This manuscript intends to review current understanding of succinate in mediating metabolism, inflammatory and immunologic reactions in liver diseases in order to establish molecular basis for the development of therapeutic strategies.
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Affiliation(s)
- Hui Chen
- Department of Medical Microbiology & Parasitology, MOE/NHC/CAMS Key Laboratory of Medical Molecular Virology, School of Basic Medical Sciences, Fudan University Shanghai Medical College, Shanghai 200032, China
| | - Cheng Jin
- Department of Medical Microbiology & Parasitology, MOE/NHC/CAMS Key Laboratory of Medical Molecular Virology, School of Basic Medical Sciences, Fudan University Shanghai Medical College, Shanghai 200032, China; College of Clinical College, Fudan University Shanghai Medical College, Shanghai 200032, China
| | - Li Xie
- Department of Medical Microbiology & Parasitology, MOE/NHC/CAMS Key Laboratory of Medical Molecular Virology, School of Basic Medical Sciences, Fudan University Shanghai Medical College, Shanghai 200032, China
| | - Jian Wu
- Department of Medical Microbiology & Parasitology, MOE/NHC/CAMS Key Laboratory of Medical Molecular Virology, School of Basic Medical Sciences, Fudan University Shanghai Medical College, Shanghai 200032, China; Department of Gastroenterology & Hepatology, Zhongshan Hospital of Fudan University, Shanghai 200032, China; Shanghai Institute of Liver Diseases, Fudan University Shanghai Medical College, Shanghai 200032, China.
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4
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Patil S, Zamwar UM, Mudey A. Etiology, Epidemiology, Pathophysiology, Signs and Symptoms, Evaluation, and Treatment of Vitamin A (Retinol) Deficiency. Cureus 2023; 15:e49011. [PMID: 38111435 PMCID: PMC10726094 DOI: 10.7759/cureus.49011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 11/18/2023] [Indexed: 12/20/2023] Open
Abstract
Vitamin A, also known as retinol, is a non-water-soluble vitamin. Vitamin A is very important for the proper functioning of the human body. Retinol, especially in the form of retinyl ester, can be found in many animal-based products and is essential for the efficient operation of many physiological processes. Fruits and vegetables are also excellent sources of vitamin A; the majority of them include carotenoids, which are precursors to vitamin A. The human body has the ability to convert natural retinols like retinyl ester, retinoic acid, and provitamin A into biologically active forms that interact with a variety of molecular targets like nuclear receptors and retinal opsins. This review article provides knowledge regarding retinol deficiency in humans. It provides brief information about the sources, etiology, epidemiology, pathophysiology, and treatment of vitamin A deficiency.
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Affiliation(s)
- Shraddha Patil
- Endocrinology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Udit M Zamwar
- Endocrinology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Abhay Mudey
- Community Medicine, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
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5
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Videla LA, Valenzuela R, Del Campo A, Zúñiga-Hernández J. Omega-3 Lipid Mediators: Modulation of the M1/M2 Macrophage Phenotype and Its Protective Role in Chronic Liver Diseases. Int J Mol Sci 2023; 24:15528. [PMID: 37958514 PMCID: PMC10647594 DOI: 10.3390/ijms242115528] [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: 10/02/2023] [Revised: 10/12/2023] [Accepted: 10/13/2023] [Indexed: 11/15/2023] Open
Abstract
The complex interplay between dietary factors, inflammation, and macrophage polarization is pivotal in the pathogenesis and progression of chronic liver diseases (CLDs). Omega-3 fatty acids (FAs) have brought in attention due to their potential to modulate inflammation and exert protective effects in various pathological conditions. Omega-3 fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) have shown promise in mitigating inflammation and enhancing the resolution of inflammatory responses. They influence the M1/M2 macrophage phenotype balance, promoting a shift towards the M2 anti-inflammatory phenotype. Specialized pro-resolving mediators (SPMs), such as resolvins (Rvs), protectins (PDs), and maresins (MaRs), have emerged as potent regulators of inflammation and macrophage polarization. They show anti-inflammatory and pro-resolving properties, by modulating the expression of cytokines, facilitate the phagocytosis of apoptotic cells, and promote tissue repair. MaR1, in particular, has demonstrated significant hepatoprotective effects by promoting M2 macrophage polarization, reducing oxidative stress, and inhibiting key inflammatory pathways such as NF-κB. In the context of CLDs, such as nonalcoholic fatty liver disease (NAFLD) and cirrhosis, omega-3s and their SPMs have shown promise in attenuating liver injury, promoting tissue regeneration, and modulating macrophage phenotypes. The aim of this article was to analyze the emerging role of omega-3 FAs and their SPMs in the context of macrophage polarization, with special interest in the mechanisms underlying their effects and their interactions with other cell types within the liver microenvironment, focused on CLDs and the development of novel therapeutic strategies.
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Affiliation(s)
- Luis Alberto Videla
- Molecular and Clinical Pharmacology Program, Institute of Biomedical Science, Faculty of Medicine, University of Chile, Santiago 8380000, Chile;
| | - Rodrigo Valenzuela
- Nutrition Department, Faculty of Medicine, University of Chile, Santiago 8380000, Chile;
| | - Andrea Del Campo
- Laboratorio de Fisiología y Bioenergética Celular, Escuela de Química y Farmacia, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile;
| | - Jessica Zúñiga-Hernández
- Biomedical Sciences Department, Faculty of Health Sciences, University of Talca, Talca 3460000, Chile
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Han J, Wu P, Wen Y, Liu C, Liu X, Tao H, Zhang F, Zhang X, Ye Q, Shen T, Chen X, Yu H. The zhuyu pill relieves rat cholestasis by regulating the mRNA expression of lipid and bile metabolism associated genes. Front Pharmacol 2023; 14:1280864. [PMID: 37881184 PMCID: PMC10597705 DOI: 10.3389/fphar.2023.1280864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 09/29/2023] [Indexed: 10/27/2023] Open
Abstract
Background: The Zhuyu pill (ZYP), composed of Coptis chinensis Franch. and Tetradium ruticarpum (A. Jussieu) T. G. Hartley, is an effective traditional Chinese medicine with potential anti-cholestatic effects. However, the underlying mechanisms of ZYP remain unknown. Objective: To investigate the mechanism underlying the interventional effect of ZYP on mRNA-seq analysis in cholestasis rat models. Materials and methods: This study tested the effects of a low-dose (0.6 g/kg) and high-dose (1.2 g/kg) of ZYP on a cholestasis rat model induced by α-naphthyl-isothiocyanate (ANIT, 50 mg/kg). Serum biochemistry and histopathology results were used to evaluate the therapeutic effect of ZYP, and mRNA-Seq analysis was performed and verified using real-time fluorescence quantitative PCR (qRT-PCR). GO, KEGG, and GSEA analyses were integrated to identify the mechanism by which ZYP impacted cholestatic rats. Results: ZYP was shown to significantly improve abnormal changes in the biochemical blood indexes and liver histopathology of cholestasis rats and regulate pathways related to bile and lipid metabolism, including fatty acid metabolism, retinol metabolism, and steroid hormone biosynthesis, to alleviate inflammation, cholestasis, and lipid metabolism disorders. Relative expression of the essential genes Cyp2a1, Ephx2, Acox2, Cyp1a2, Cyp2c11, and Sult2a1 was verified by qRT-PCR and showed the same trend as mRNA-seq analysis. Conclusion: ZYP has a significant anti-cholestatic effect by regulating bile metabolism and lipid metabolism related pathways. These findings indicate that ZYP is a novel and promising prospect for treating cholestasis.
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Affiliation(s)
- Jun Han
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Peijie Wu
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yueqiang Wen
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Department of Pediatrics, Guang’an Traditional Chinese Medicine Hospital, Guang’an, China
| | - Chao Liu
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xinglong Liu
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Huan Tao
- Department of Dermatology, Cangxi Traditional Chinese Medicine Hospital, Guangyuan, China
| | - Fenghua Zhang
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaodan Zhang
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qiaobo Ye
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Tao Shen
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaofeng Chen
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Han Yu
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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7
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Kandurova KY, Sumin DS, Mamoshin AV, Potapova EV. Deconvolution of the fluorescence spectra measured through a needle probe to assess the functional state of the liver. Lasers Surg Med 2023; 55:690-701. [PMID: 37300892 DOI: 10.1002/lsm.23695] [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: 03/22/2023] [Revised: 05/24/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023]
Abstract
OBJECTIVES Currently, one of the most pressing issues for surgeons in the treatment of obstructive jaundice is the ability to assess the functional state of the liver and to detect and determine the degree of liver failure in a timely manner with simple and objective techniques. In this regard, the use of fluorescence spectroscopy method can be considered as one of the ways to improve the informativity of existing diagnostic algorithms in clinical practice and to introduce new diagnostic tools. Thus, the aim of the work was to study in vivo the functional state of liver parenchyma by the method of fluorescence spectroscopy implemented through a needle probe and assess the contribution of the main tissue fluorophores to reveal new diagnostic criteria. MATERIALS AND METHODS We compared data from 20 patients diagnosed with obstructive jaundice and 11 patients without this syndrome. Measurements were performed using a fluorescence spectroscopy method at excitation wavelengths of 365 and 450 nm. Data were collected using a 1 mm fiber optic needle probe. The analysis was based on the comparison of the results of deconvolution with the combinations of Gaussian curves reflecting the contribution of the pure fluorophores in the liver tissues. RESULTS The results showed a statistically significant increase in the contribution of curves reflecting NAD(P)H fluorescence, bilirubin, and flavins in the group of patients with obstructive jaundice. This and the calculated redox ratio values indicated that the energy metabolism of the hepatocytes may have shifted to glycolysis due to hypoxia. An increase in vitamin A fluorescence was also observed. It may also serve as a marker of liver damage, indicating impaired vitamin A mobilization from the liver due to cholestasis. CONCLUSIONS The results obtained reflect changes associated with shifts in the content of the main fluorophores characterizing hepatocyte dysfunction caused by accumulation of bilirubin and bile acids and after disturbance of oxygen utilization. The contributions of NAD(P)H, flavins, and bilirubin as well as vitamin A can be used for further studies as promising diagnostic and prognostic markers for the course of liver failure. Further work will include collecting fluorescence spectroscopy data in patients with different clinical effects of obstructive jaundice on postoperative clinical outcome after biliary decompression.
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Affiliation(s)
- Ksenia Y Kandurova
- Research and Development Center of Biomedical Photonics, Orel State University, Orel, Russia
| | - Dmitry S Sumin
- Research and Development Center of Biomedical Photonics, Orel State University, Orel, Russia
- Department of Interventional Radiology, Orel Regional Clinical Hospital, Orel, Russia
| | - Andrian V Mamoshin
- Research and Development Center of Biomedical Photonics, Orel State University, Orel, Russia
- Department of Interventional Radiology, Orel Regional Clinical Hospital, Orel, Russia
| | - Elena V Potapova
- Research and Development Center of Biomedical Photonics, Orel State University, Orel, Russia
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8
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Lurje I, Gaisa NT, Weiskirchen R, Tacke F. Mechanisms of organ fibrosis: Emerging concepts and implications for novel treatment strategies. Mol Aspects Med 2023; 92:101191. [PMID: 37236017 DOI: 10.1016/j.mam.2023.101191] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023]
Abstract
Fibrosis, or tissue scarring, develops as a pathological deviation from the physiological wound healing response and can occur in various organs such as the heart, lung, liver, kidney, skin, and bone marrow. Organ fibrosis significantly contributes to global morbidity and mortality. A broad spectrum of etiologies can cause fibrosis, including acute and chronic ischemia, hypertension, chronic viral infection (e.g., viral hepatitis), environmental exposure (e.g., pneumoconiosis, alcohol, nutrition, smoking) and genetic diseases (e.g., cystic fibrosis, alpha-1-antitrypsin deficiency). Common mechanisms across organs and disease etiologies involve a sustained injury to parenchymal cells that triggers a wound healing response, which becomes deregulated in the disease process. A transformation of resting fibroblasts into myofibroblasts with excessive extracellular matrix production constitutes the hallmark of disease, however, multiple other cell types such as immune cells, predominantly monocytes/macrophages, endothelial cells, and parenchymal cells form a complex network of profibrotic cellular crosstalk. Across organs, leading mediators include growth factors like transforming growth factor-β and platelet-derived growth factor, cytokines like interleukin-10, interleukin-13, interleukin-17, and danger-associated molecular patterns. More recently, insights into fibrosis regression and resolution of chronic conditions have deepened our understanding of beneficial, protective effects of immune cells, soluble mediators and intracellular signaling. Further in-depth insights into the mechanisms of fibrogenesis can provide the rationale for therapeutic interventions and the development of targeted antifibrotic agents. This review gives insight into shared responses and cellular mechanisms across organs and etiologies, aiming to paint a comprehensive picture of fibrotic diseases in both experimental settings and in human pathology.
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Affiliation(s)
- Isabella Lurje
- Department of Hepatology and Gastroenterology, Campus Charité Mitte and Campus Virchow-Klinikum, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Nadine T Gaisa
- Institute of Pathology, University Hospital RWTH Aachen, Aachen, Germany
| | - Ralf Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry (IFMPEGKC), RWTH Aachen University Hospital, Aachen, Germany
| | - Frank Tacke
- Department of Hepatology and Gastroenterology, Campus Charité Mitte and Campus Virchow-Klinikum, Charité-Universitätsmedizin Berlin, Berlin, Germany.
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9
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Kaps L, Limeres MJ, Schneider P, Svensson M, Zeyn Y, Fraude S, Cacicedo ML, Galle PR, Gehring S, Bros M. Liver Cell Type-Specific Targeting by Nanoformulations for Therapeutic Applications. Int J Mol Sci 2023; 24:11869. [PMID: 37511628 PMCID: PMC10380755 DOI: 10.3390/ijms241411869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 06/21/2023] [Accepted: 07/21/2023] [Indexed: 07/30/2023] Open
Abstract
Hepatocytes exert pivotal roles in metabolism, protein synthesis and detoxification. Non-parenchymal liver cells (NPCs), largely comprising macrophages, dendritic cells, hepatic stellate cells and liver sinusoidal cells (LSECs), serve to induce immunological tolerance. Therefore, the liver is an important target for therapeutic approaches, in case of both (inflammatory) metabolic diseases and immunological disorders. This review aims to summarize current preclinical nanodrug-based approaches for the treatment of liver disorders. So far, nano-vaccines that aim to induce hepatitis virus-specific immune responses and nanoformulated adjuvants to overcome the default tolerogenic state of liver NPCs for the treatment of chronic hepatitis have been tested. Moreover, liver cancer may be treated using nanodrugs which specifically target and kill tumor cells. Alternatively, nanodrugs may target and reprogram or deplete immunosuppressive cells of the tumor microenvironment, such as tumor-associated macrophages. Here, combination therapies have been demonstrated to yield synergistic effects. In the case of autoimmune hepatitis and other inflammatory liver diseases, anti-inflammatory agents can be encapsulated into nanoparticles to dampen inflammatory processes specifically in the liver. Finally, the tolerance-promoting activity especially of LSECs has been exploited to induce antigen-specific tolerance for the treatment of allergic and autoimmune diseases.
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Affiliation(s)
- Leonard Kaps
- I. Department of Medicine, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany
| | - María José Limeres
- Children's Hospital, University Medical Center, Langenbeckstrasse 1, 55131 Mainz, Germany
| | - Paul Schneider
- I. Department of Medicine, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany
| | - Malin Svensson
- Children's Hospital, University Medical Center, Langenbeckstrasse 1, 55131 Mainz, Germany
| | - Yanira Zeyn
- Department of Dermatology, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany
| | - Silvia Fraude
- Children's Hospital, University Medical Center, Langenbeckstrasse 1, 55131 Mainz, Germany
| | - Maximiliano L Cacicedo
- Children's Hospital, University Medical Center, Langenbeckstrasse 1, 55131 Mainz, Germany
| | - Peter R Galle
- I. Department of Medicine, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany
| | - Stephan Gehring
- Children's Hospital, University Medical Center, Langenbeckstrasse 1, 55131 Mainz, Germany
| | - Matthias Bros
- Department of Dermatology, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany
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10
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Wang J, Li T, Zhou Y, Wang X, Carvalho V, Ni C, Li W, Wang Q, Chen Y, Shang Z, Qiu S, Sun Z. Genetic lineage tracing reveals stellate cells as contributors to myofibroblasts in pancreas and islet fibrosis. iScience 2023; 26:106988. [PMID: 37378313 PMCID: PMC10291507 DOI: 10.1016/j.isci.2023.106988] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 04/18/2023] [Accepted: 05/24/2023] [Indexed: 06/29/2023] Open
Abstract
Pancreatic stellate cells (PSCs) are suggested to play an important role in the development of pancreas and islet fibrosis. However, the precise contributions and solid in vivo evidence of PSCs to the fibrogenesis remain to be elucidated. Here, we developed a novel fate-tracing strategy for PSCs by vitamin A administration in Lrat-cre; Rosa26-tdTomato transgenic mouse. The results showed that stellate cells give rise to 65.7% of myofibroblasts in cerulein-induced pancreatic exocrine fibrosis. In addition, stellate cells in islets increase and contribute partly to myofibroblasts pool in streptozocin-induced acute or chronic islet injury and fibrosis. Furthermore, we substantiated the functional contribution of PSCs to fibrogenesis of pancreatic exocrine and islet in PSCs ablated mice. We also found stellate cells' genetic ablation can improve pancreatic exocrine but not islet fibrosis. Together, our data indicates that stellate cells are vital/partial contributors to myofibroblasts in pancreatic exocrine/islet fibrosis.
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Affiliation(s)
- Jinbang Wang
- Department of Endocrinology, Zhongda Hospital, Institute of Diabetes, School of Medicine, Southeast University, Nanjing, China
| | - Tingting Li
- Department of Endocrinology, Zhongda Hospital, Institute of Diabetes, School of Medicine, Southeast University, Nanjing, China
| | - Yunting Zhou
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xiaohang Wang
- Department of Endocrinology, Zhongda Hospital, Institute of Diabetes, School of Medicine, Southeast University, Nanjing, China
| | - Vladmir Carvalho
- Department of Endocrinology, Zhongda Hospital, Institute of Diabetes, School of Medicine, Southeast University, Nanjing, China
| | - Chengming Ni
- Department of Endocrinology, Zhongda Hospital, Institute of Diabetes, School of Medicine, Southeast University, Nanjing, China
| | - Wei Li
- Department of Endocrinology, Suzhou Hospital of Anhui Medical University, Suzhou, China
| | - Qianqian Wang
- Department of Endocrinology, Zhongda Hospital, Institute of Diabetes, School of Medicine, Southeast University, Nanjing, China
| | - Yang Chen
- Department of Endocrinology, Zhongda Hospital, Institute of Diabetes, School of Medicine, Southeast University, Nanjing, China
| | - Zhanjia Shang
- Department of Endocrinology, Zhongda Hospital, Institute of Diabetes, School of Medicine, Southeast University, Nanjing, China
| | - Shanhu Qiu
- Department of General Practice, Zhongda Hospital, Institute of Diabetes, School of Medicine, Southeast University, Nanjing, China
| | - Zilin Sun
- Department of Endocrinology, Zhongda Hospital, Institute of Diabetes, School of Medicine, Southeast University, Nanjing, China
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11
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Ge J, Li H, Yang JQ, Yue Y, Lu SY, Nie HY, Zhang T, Sun PM, Yan HF, Sun HW, Yang JW, Zhou JL, Cui Y. Autophagy in hepatic macrophages can be regulator and potential therapeutic target of liver diseases: A review. Medicine (Baltimore) 2023; 102:e33698. [PMID: 37171337 PMCID: PMC10174421 DOI: 10.1097/md.0000000000033698] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/13/2023] Open
Abstract
Hepatic macrophages are a complex population of cells that play an important role in the normal functioning of the liver and in liver diseases. Autophagy, as a maintainer of cellular homeostasis, is closely connected to many liver diseases. And its roles are not always beneficial, but manifesting as a double-edged sword. The polarization of macrophages and the activation of inflammasomes are mediated by intracellular and extracellular signals, respectively, and are important ways for macrophages to take part in a variety of liver diseases. More attention should be paid to autophagy of hepatic macrophages in liver diseases. In this review, we focus on the regulatory role of hepatic macrophages' autophagy in a variety of liver diseases; especially on the upstream regulator of polarization and inflammasomes activation of the hepatic macrophages. We believe that the autophagy of hepatic macrophages can become a potential therapeutic target for management of liver diseases.
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Affiliation(s)
- Jun Ge
- Department of General Surgery, Strategic Support Force Medical Center, Beijing 100101, China
- Department of General Surgery, The 306th Hospital of PLA-Peking University Teaching Hospital, Beijing 100101, China
| | - Hao Li
- Department of General Surgery, Strategic Support Force Medical Center, Beijing 100101, China
| | - Jia-Qi Yang
- Department of General Surgery, The 306th Hospital of PLA-Peking University Teaching Hospital, Beijing 100101, China
| | - Yuan Yue
- Department of General Surgery, The 306th Hospital of PLA-Peking University Teaching Hospital, Beijing 100101, China
| | - Sheng-Yu Lu
- Department of General Surgery, The 306th Hospital of PLA-Peking University Teaching Hospital, Beijing 100101, China
| | - Hong-Yun Nie
- Department of General Surgery, The 306th Hospital of PLA-Peking University Teaching Hospital, Beijing 100101, China
| | - Tao Zhang
- Department of General Surgery, Strategic Support Force Medical Center, Beijing 100101, China
| | - Pei-Ming Sun
- Department of General Surgery, Strategic Support Force Medical Center, Beijing 100101, China
| | - Hong-Feng Yan
- Department of General Surgery, Strategic Support Force Medical Center, Beijing 100101, China
| | - Hong-Wei Sun
- Department of General Surgery, Strategic Support Force Medical Center, Beijing 100101, China
| | - Jian-Wu Yang
- Department of General Surgery, Strategic Support Force Medical Center, Beijing 100101, China
| | - Jin-Lian Zhou
- Department of Pathology, Strategic Support Force Medical Center, Beijing 100101, China
| | - Yan Cui
- Department of General Surgery, Strategic Support Force Medical Center, Beijing 100101, China
- Department of General Surgery, The 306th Hospital of PLA-Peking University Teaching Hospital, Beijing 100101, China
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12
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Ezhilarasan D, Najimi M. Deciphering the possible reciprocal loop between hepatic stellate cells and cancer cells in the tumor microenvironment of the liver. Crit Rev Oncol Hematol 2023; 182:103902. [PMID: 36621514 DOI: 10.1016/j.critrevonc.2022.103902] [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: 10/07/2022] [Revised: 12/22/2022] [Accepted: 12/23/2022] [Indexed: 01/07/2023] Open
Abstract
Activated hepatic stellate cells (HSCs)/myofibroblasts are the important sources of cancer-associated fibroblasts in the liver tumor microenvironment (TME). The crosstalk between activated HSCs and tumor cells mediates HCC progression, metastasis, tumor cell survival, angiogenesis and chemoresistance. In TME, HCC cells secrete various soluble factors responsible for the phenotypic activation of quiescent HSCs. Tumor cells use activated HSC-derived extracellular matrix (ECM) for migration and invasion. Further, in liver TME, activated HSCs and sinusoidal endothelial cells engage in a crosstalk that causes the secretion of angiogenesis and metastasis-related growth factors and cytokines. Activated HSCs and immune cells crosstalk to decrease immune surveillance in the liver TME by increasing the population of T regulatory cells and M2 macrophages or myeloid-derived suppressor cells. Thus, HSCs play a vital role in liver TME cell interactions. Therefore, a deep understanding of HSCs activation and their crosstalk with cancer and immune cells in TME may lead to the development of novel therapeutic strategies to target HCC.
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Affiliation(s)
- Devaraj Ezhilarasan
- Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu 600077, India.
| | - Mustapha Najimi
- Laboratory of Pediatric Hepatology and Cell Therapy, Institut de Recherche Expérimentale et Clinique (IREC), UCLouvain, Brussels 1200, Belgium
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13
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The Tumor Microenvironment in Tumorigenesis and Therapy Resistance Revisited. Cancers (Basel) 2023; 15:cancers15020376. [PMID: 36672326 PMCID: PMC9856874 DOI: 10.3390/cancers15020376] [Citation(s) in RCA: 41] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/28/2022] [Accepted: 01/04/2023] [Indexed: 01/09/2023] Open
Abstract
Tumorigenesis is a complex and dynamic process involving cell-cell and cell-extracellular matrix (ECM) interactions that allow tumor cell growth, drug resistance and metastasis. This review provides an updated summary of the role played by the tumor microenvironment (TME) components and hypoxia in tumorigenesis, and highlight various ways through which tumor cells reprogram normal cells into phenotypes that are pro-tumorigenic, including cancer associated- fibroblasts, -macrophages and -endothelial cells. Tumor cells secrete numerous factors leading to the transformation of a previously anti-tumorigenic environment into a pro-tumorigenic environment. Once formed, solid tumors continue to interact with various stromal cells, including local and infiltrating fibroblasts, macrophages, mesenchymal stem cells, endothelial cells, pericytes, and secreted factors and the ECM within the tumor microenvironment (TME). The TME is key to tumorigenesis, drug response and treatment outcome. Importantly, stromal cells and secreted factors can initially be anti-tumorigenic, but over time promote tumorigenesis and induce therapy resistance. To counter hypoxia, increased angiogenesis leads to the formation of new vascular networks in order to actively promote and sustain tumor growth via the supply of oxygen and nutrients, whilst removing metabolic waste. Angiogenic vascular network formation aid in tumor cell metastatic dissemination. Successful tumor treatment and novel drug development require the identification and therapeutic targeting of pro-tumorigenic components of the TME including cancer-associated- fibroblasts (CAFs) and -macrophages (CAMs), hypoxia, blocking ECM-receptor interactions, in addition to the targeting of tumor cells. The reprogramming of stromal cells and the immune response to be anti-tumorigenic is key to therapeutic success. Lastly, this review highlights potential TME- and hypoxia-centered therapies under investigation.
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Pibiri M, Simbula G. Role of the Hippo pathway in liver regeneration and repair: recent advances. Inflamm Regen 2022; 42:59. [PMID: 36471376 PMCID: PMC9720992 DOI: 10.1186/s41232-022-00235-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 11/09/2022] [Indexed: 12/12/2022] Open
Abstract
Although the signaling pathways involved in normal liver regeneration have been well characterized, less has been done for livers affected by chronic tissue damage. These "abnormal livers" have an impaired regenerative response that leads to liver repair and fibrosis. The tumor suppressor Hippo pathway plays a key role in liver regeneration and repair. On this basis, this review discusses recent studies focusing on the involvement of the Hippo signaling pathway during "normal healthy liver regeneration" (i.e., in a normal liver after 2/3 partial hepatectomy) and "abnormal liver regeneration" (i.e., in a liver damaged by chronic disease). This could be an important question to address with respect to new therapies aimed at improving impaired liver regenerative responses. The studies reported here have shown that activation of the Hippo coactivators YAP/TAZ during normal liver regeneration promotes the formation of a new bile duct network through direct BEC proliferation or/and hepatocyte dedifferentiation to HPCs which can trans-differentiate to BECs. Moreover, YAP/TAZ signaling interaction with other signaling pathways mediates the recruitment and activation of Kupffer cells, which release mitogenic cytokines for parenchymal and/or non-parenchymal cells and engage in phagocytosis of cellular debris. In addition, YAP-mediated activation of stellate cells (HSCs) promotes liver regeneration through the synthesis of extracellular matrix. However, in chronically diseased livers, where the predetermined threshold for proper liver regeneration is exceeded, YAP/TAZ activation results in a reparative process characterized by liver fibrosis. In this condition, YAP/TAZ activation in parenchymal and non-parenchymal cells results in (i) differentiation of quiescent HSCs into myofibroblastic HSCs; (ii) recruitment of macrophages releasing inflammatory cytokines; (iii) polarization of macrophages toward the M2 phenotype. Since accumulation of damaged hepatocytes in chronic liver injury represent a significant risk factor for the development of hepatocarcinoma, this review also discussed the involvement of the Hippo pathway in the clearance of damaged cells.
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Affiliation(s)
- Monica Pibiri
- grid.7763.50000 0004 1755 3242Department of Biomedical Sciences, Oncology and Molecular Pathology Unit, University of Cagliari, Cittadella Universitaria di Monserrato, S.P. Monserrato-Sestu km 0.700, Blocco A. 09042 Monserrato, Cagliari, Italy
| | - Gabriella Simbula
- grid.7763.50000 0004 1755 3242Department of Biomedical Sciences, Oncology and Molecular Pathology Unit, University of Cagliari, Cittadella Universitaria di Monserrato, S.P. Monserrato-Sestu km 0.700, Blocco A. 09042 Monserrato, Cagliari, Italy
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15
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Han HT, Jin WL, Li X. Mesenchymal stem cells-based therapy in liver diseases. MOLECULAR BIOMEDICINE 2022; 3:23. [PMID: 35895169 PMCID: PMC9326420 DOI: 10.1186/s43556-022-00088-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 06/20/2022] [Indexed: 12/24/2022] Open
Abstract
Multiple immune cells and their products in the liver together form a complex and unique immune microenvironment, and preclinical models have demonstrated the importance of imbalances in the hepatic immune microenvironment in liver inflammatory diseases and immunocompromised liver diseases. Various immunotherapies have been attempted to modulate the hepatic immune microenvironment for the purpose of treating liver diseases. Mesenchymal stem cells (MSCs) have a comprehensive and plastic immunomodulatory capacity. On the one hand, they have been tried for the treatment of inflammatory liver diseases because of their excellent immunosuppressive capacity; On the other hand, MSCs have immune-enhancing properties in immunocompromised settings and can be modified into cellular carriers for targeted transport of immune enhancers by genetic modification, physical and chemical loading, and thus they are also used in the treatment of immunocompromised liver diseases such as chronic viral infections and hepatocellular carcinoma. In this review, we discuss the immunological basis and recent strategies of MSCs for the treatment of the aforementioned liver diseases. Specifically, we update the immune microenvironment of the liver and summarize the distinct mechanisms of immune microenvironment imbalance in inflammatory diseases and immunocompromised liver diseases, and how MSCs can fully exploit their immunotherapeutic role in liver diseases with both immune imbalance patterns.
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Tian H, Xu F, Zhao F, Pan N, Lu S, Jia X, Zhou Y. Early-immediate gene Egr1 is associated with TGFβ1 regulation of epigenetic reader Bromodomain-containing protein 4 via the canonical Smad3 signaling in hepatic stellate cells in vitro and in vivo. FASEB J 2022; 36:e22605. [PMID: 36250963 DOI: 10.1096/fj.202201263r] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/17/2022] [Accepted: 09/29/2022] [Indexed: 12/31/2022]
Abstract
Upon chronic damage to the liver, multiple cytokines stimulate hepatic stellate cells (HSCs), causing the alterations of gene expression profiles and thus leading to HSC activation, a key step in liver fibrogenesis. Activated HSCs are the dominant contributors to liver fibrosis. Bromodomain containing protein 4 (BrD4), an important epigenetic reader, was demonstrated to concentrate on hundreds of enhancers associated with genes involved in multiple profibrotic pathways, thereby directing HSC activation and the fibrotic responses. The present studies were designed to examine the effect of transforming growth factor beta-1 (TGFβ1), the most potent pro-fibrotic cytokine, on BrD4 expression in HSCs and, if so, elucidated the underlying mechanisms in vitro and in vivo. The experiments employed the heterogeneous TGFβ1 knockout (TGFβ1+/- ) mice, gene knockdown in vivo, and a model of thioacetamide (TAA)-induced liver injury. The results revealed that TGFβ1 enhanced BrD4 expression in HSCs, which was mediated, at least, by Smad3 signaling and early-immediate gene Egr1 (early growth response-1). TGFβ1-induced Smad3 signaling increased Egr1 expression and promoted Egr1 binding to BrD4 promoter at a site around -111 bp, promoting BrD4 expression. Egr1 knockdown reduced BrD4 expression in HSCs in a mouse model of TAA-induced liver injury and lessened liver fibrosis. Double fluorescence staining demonstrated a strong increase in BrD4 expression in activated HSCs in fibrotic areas of the human livers, paralleling the upregulation of p-Smad3 and Egr1. This research suggested novel molecular events underlying the roles of the master pro-fibrotic cytokine TGFβ1 in HSC activation and liver fibrogenesis.
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Affiliation(s)
- Haimeng Tian
- Department of Biochemistry & Molecular Biology, Medical School, Nantong University, Nantong, China
| | - Feifan Xu
- Department of Clinical Laboratory, Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), Nantong, China
| | - Feifei Zhao
- Department of Biochemistry & Molecular Biology, Medical School, Nantong University, Nantong, China
| | - Nachuan Pan
- Department of Pathology and Laboratory Medicine, Schulich School of Medicine & Dentistry, Western University, London, Ontario, Canada
| | - Sidan Lu
- Department of Biochemistry & Molecular Biology, Medical School, Nantong University, Nantong, China
| | - Xin Jia
- Department of Biochemistry & Molecular Biology, Medical School, Nantong University, Nantong, China
| | - Yajun Zhou
- Department of Biochemistry & Molecular Biology, Medical School, Nantong University, Nantong, China
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17
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Niu X, Meng Y, Wang Y, Li G. Established new compound IMB16-4 self-emulsifying drug delivery systems for increasing oral bioavailability and enhancing anti-hepatic fibrosis effect. Biomed Pharmacother 2022; 154:113657. [PMID: 36942601 DOI: 10.1016/j.biopha.2022.113657] [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: 05/20/2022] [Revised: 08/31/2022] [Accepted: 09/01/2022] [Indexed: 11/22/2022] Open
Abstract
Liver fibrosis results from the chronic liver injury and no specific medical therapy is approved so far. Recently, new compound, N-(3,4,5-trichlorophenyl) - 2 (3-nitrobenzenesulfonamido) benzamide, referred to as IMB16-4, was developed to resist liver fibrosis. However, IMB16-4 displays poor aqueous solubility and poor oral bioavailability. To increase the dissolution rate, improve the oral bioavailability and enhance the anti-hepatic fibrosis action of IMB16-4, IMB16-4 self-emulsifying drug delivery systems (SEDDS) with negative charge or positive charge were prepared using simple stirring, respectively. Their stability, oral bioavailability and anti-liver fibrosis effect were evaluated. The results showed IMB16-4 SEDDS in simulated gastric juice were nearly spherical with the diameter of 100~200 nm and possessed good stability in 30 days. The oral bioavailability of IMB16-4 SEDDS with negative charge and positive charge were increased to 33 folds and 58 folds compared with that of pure IMB16-4, respectively. In bile duct ligation (BDL) rats, IMB16-4 SEDDS attenuated the degree of liver damage and decreased collagen accumulation. In addition, IMB16-4 SEDDS with negative charge easily accumulated in the liver and alleviated hepatic fibrosis by TGF-β/Smad signaling. These findings indicate that IMB16- 4 SEDDS may be a potential therapy for the treatment of liver fibrosis.
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Affiliation(s)
- Xia Niu
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100050, China
| | - Yanan Meng
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100050, China
| | - Yucheng Wang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100050, China.
| | - Guiling Li
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100050, China.
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18
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Peng H, Zhu E, Zhang Y. Advances of cancer-associated fibroblasts in liver cancer. Biomark Res 2022; 10:59. [PMID: 35971182 PMCID: PMC9380339 DOI: 10.1186/s40364-022-00406-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 08/01/2022] [Indexed: 12/24/2022] Open
Abstract
Liver cancer is one of the most common malignant tumors worldwide, it is ranked sixth in incidence and fourth in mortality. According to the distinct origin of malignant tumor cells, liver cancer is mainly divided into hepatocellular carcinoma (HCC) and cholangiocarcinoma (CCA). Since most cases are diagnosed at an advanced stage, the prognosis of liver cancer is poor. Tumor growth depends on the dynamic interaction of various cellular components in the tumor microenvironment (TME). As the most abundant components of tumor stroma, cancer-associated fibroblasts (CAFs) have been involved in the progression of liver cancer. The interplay between CAFs and tumor cells, immune cells, or vascular endothelial cells in the TME through direct cell-to-cell contact or indirect paracrine interaction, affects the initiation and development of tumors. Additionally, CAFs are not a homogeneous cell population in liver cancer. Recently, single-cell sequencing technology has been used to help better understand the diversity of CAFs in liver cancer. In this review, we mainly update the knowledge of CAFs both in HCC and CCA, including their cell origins, chemoresistance, tumor stemness induction, tumor immune microenvironment formation, and the role of tumor cells on CAFs. Understanding the context-dependent role of different CAFs subsets provides new strategies for precise liver cancer treatment.
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Affiliation(s)
- Hao Peng
- Medical School, Southeast University, Nanjing, 210009, China
| | - Erwei Zhu
- The Second People's Hospital of Lianyungang (The Oncology Hospital of Lianyungang), Lianyungang, 222006, China
| | - Yewei Zhang
- Hepatopancreatobiliary Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210009, China.
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19
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FOSL2 deficiency delays nonalcoholic steatohepatitis progression by regulating LY6D-mediated NLRP3 activation. Hum Cell 2022; 35:1752-1765. [PMID: 35930135 DOI: 10.1007/s13577-022-00760-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 07/24/2022] [Indexed: 12/27/2022]
Abstract
Lymphocyte antigen 6 family member D (LY6D) was enhanced specifically in senescent cells, while its effects on pyroptosis, a programmed cell death, remains unknown. The goal of this study was to assess the role of LY6D in the mediation of pyroptosis during nonalcoholic steatohepatitis (NASH). After screening out LY6D as a specific liver fibrosis-associated gene using the GSE55747 dataset from the GEO database, we established a NASH mouse model using methionine and choline deficient-diet feeding and an in vitro model using lipopolysaccharide (LPS)-treated hepatocytes. LY6D was overexpressed in NASH livers as well as in LPS-treated hepatocytes. Silencing of LY6D inhibited NASH-associated hepatocyte pyroptosis. With the aid of bioinformatics analysis, promoter-luciferase reporter and ChIP-qPCR assays, we identified FOSL2 as an upstream transcription factor of LY6D. FOSL2, which was highly expressed in NASH, promoted LY6D transcription by binding to the promoter of LY6D. Depletion of FOSL2 significantly inhibited NASH-associated hepatocyte pyroptosis, which was significantly reversed after overexpression of LY6D. Moreover, the promotion of hepatocyte pyroptosis by the FOSL2/LY6D axis was significantly attenuated by specific inhibition of NLRP3. These findings suggesting that FOSL2/LY6D axis may be a key molecular axis and a potential target for NASH therapeutics.
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20
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Kang S, Bo Y, Yang D, Wu G, Yang X, Wei J, Zhao G, An M, Zhao L. Tandem mass tag-based proteomics analysis reveals the effects of Guri Gumu-13 pill on drug-induced liver injury. J Chromatogr B Analyt Technol Biomed Life Sci 2022; 1206:123353. [DOI: 10.1016/j.jchromb.2022.123353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 05/07/2022] [Accepted: 06/24/2022] [Indexed: 10/25/2022]
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21
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Gama JFG, Cardoso LMDF, Bisaggio RDC, Lagrota-Candido J, Henriques-Pons A, Alves LA. Immunological Tolerance in Liver Transplant Recipients: Putative Involvement of Neuroendocrine-Immune Interactions. Cells 2022; 11:cells11152327. [PMID: 35954171 PMCID: PMC9367574 DOI: 10.3390/cells11152327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 06/20/2022] [Accepted: 06/29/2022] [Indexed: 02/04/2023] Open
Abstract
The transplantation world changed significantly following the introduction of immunosuppressants, with millions of people saved. Several physicians have noted that liver recipients that do not take their medication for different reasons became tolerant regarding kidney, heart, and lung transplantations at higher frequencies. Most studies have attempted to explain this phenomenon through unique immunological mechanisms and the fact that the hepatic environment is continuously exposed to high levels of pathogen-associated molecular patterns (PAMPs) or non-pathogenic microorganism-associated molecular patterns (MAMPs) from commensal flora. These components are highly inflammatory in the periphery but tolerated in the liver as part of the normal components that arrive via the hepatic portal vein. These immunological mechanisms are discussed herein based on current evidence, although we hypothesize the participation of neuroendocrine-immune pathways, which have played a relevant role in autoimmune diseases. Cells found in the liver present receptors for several cytokines, hormones, peptides, and neurotransmitters that would allow for system crosstalk. Furthermore, the liver is innervated by the autonomic system and may, thus, be influenced by the parasympathetic and sympathetic systems. This review therefore seeks to discuss classical immunological hepatic tolerance mechanisms and hypothesizes the possible participation of the neuroendocrine-immune system based on the current literature.
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Affiliation(s)
- Jaciara Fernanda Gomes Gama
- Laboratory of Cellular Communication, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Brazil Avenue, 4365-Manguinhos, Rio de Janeiro 21045-900, Brazil; (J.F.G.G.); (L.M.d.F.C.)
- Laboratory of Immunopathology, Department of Immunobiology, Biology Institute, Federal Fluminense University (UFF), Gragoatá Bl-M Campus, Niterói 24210-200, Brazil;
| | - Liana Monteiro da Fonseca Cardoso
- Laboratory of Cellular Communication, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Brazil Avenue, 4365-Manguinhos, Rio de Janeiro 21045-900, Brazil; (J.F.G.G.); (L.M.d.F.C.)
| | - Rodrigo da Cunha Bisaggio
- Department of Biotechnology, Federal Institute of Rio de Janeiro (IFRJ), Maracanã, Rio de Janeiro 20270-021, Brazil;
| | - Jussara Lagrota-Candido
- Laboratory of Immunopathology, Department of Immunobiology, Biology Institute, Federal Fluminense University (UFF), Gragoatá Bl-M Campus, Niterói 24210-200, Brazil;
| | - Andrea Henriques-Pons
- Laboratory of Innovations in Therapies, Education, and Bioproducts, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro 21041-361, Brazil;
| | - Luiz A. Alves
- Laboratory of Cellular Communication, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Brazil Avenue, 4365-Manguinhos, Rio de Janeiro 21045-900, Brazil; (J.F.G.G.); (L.M.d.F.C.)
- Correspondence: or ; Tel.: +55-(21)-2562-1816 (ext. 1841)
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22
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Optimized Isolation and Characterization of C57BL/6 Mouse Hepatic Stellate Cells. Cells 2022; 11:cells11091379. [PMID: 35563686 PMCID: PMC9102395 DOI: 10.3390/cells11091379] [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: 01/20/2022] [Revised: 03/17/2022] [Accepted: 03/29/2022] [Indexed: 02/04/2023] Open
Abstract
To obtain meaningful results of hepatic stellate cell (HSC) function, it is crucial to use highly pure HSC populations. Our aim was to optimize HSC isolation from mice livers without exploiting the characteristically transient vitamin A autofluorescence of HSC. HSCs were isolated from C57BL/6 mice using a two-step collagenase digestion and Nycodenz gradient separation followed by CD11b-negative sorting step in order to remove contaminating macrophages and dendritic cells. Isolated cells were analyzed for yield, viability, purity, and potential new markers using immunofluorescence and flow cytometry. We obtained a yield of 350,595 ± 100,773 HSC per mouse liver and a viability of isolated cells of 92.4 ± 3.1%. We observed a low macrophage/dendritic cell contamination of 1.22 ± 0.54%. Using flow cytometry, we demonstrated that CD38 was expressed at the surface of HSC subpopulations and that all expressed intracellular markers specific for HSC in the liver. This isolation method, avoiding fluorescent activated cell sorting (FACS), allowed isolation of HSCs with high purity. Further, flow cytometry analysis suggests that CD38 may be a reliable marker of HSCs and may include subpopulations of HSCs without retinoid droplets.
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23
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Liu XY, Li D, Li TY, Wu YL, Piao JS, Piao MG. Vitamin A - modified Betulin polymer micelles with hepatic targeting capability for hepatic fibrosis protection. Eur J Pharm Sci 2022; 174:106189. [DOI: 10.1016/j.ejps.2022.106189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 04/11/2022] [Accepted: 04/12/2022] [Indexed: 12/12/2022]
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Mooli RGR, Mukhi D, Ramakrishnan SK. Oxidative Stress and Redox Signaling in the Pathophysiology of Liver Diseases. Compr Physiol 2022; 12:3167-3192. [PMID: 35578969 PMCID: PMC10074426 DOI: 10.1002/cphy.c200021] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The increased production of derivatives of molecular oxygen and nitrogen in the form of reactive oxygen species (ROS) and reactive nitrogen species (RNS) lead to molecular damage called oxidative stress. Under normal physiological conditions, the ROS generation is tightly regulated in different cells and cellular compartments. Any disturbance in the balance between the cellular generation of ROS and antioxidant balance leads to oxidative stress. In this article, we discuss the sources of ROS (endogenous and exogenous) and antioxidant mechanisms. We also focus on the pathophysiological significance of oxidative stress in various cell types of the liver. Oxidative stress is implicated in the development and progression of various liver diseases. We narrate the master regulators of ROS-mediated signaling and their contribution to liver diseases. Nonalcoholic fatty liver diseases (NAFLD) are influenced by a "multiple parallel-hit model" in which oxidative stress plays a central role. We highlight the recent findings on the role of oxidative stress in the spectrum of NAFLD, including fibrosis and liver cancer. Finally, we provide a brief overview of oxidative stress biomarkers and their therapeutic applications in various liver-related disorders. Overall, the article sheds light on the significance of oxidative stress in the pathophysiology of the liver. © 2022 American Physiological Society. Compr Physiol 12:3167-3192, 2022.
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Affiliation(s)
- Raja Gopal Reddy Mooli
- Division of Endocrinology and Metabolism, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Dhanunjay Mukhi
- Division of Endocrinology and Metabolism, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Sadeesh K Ramakrishnan
- Division of Endocrinology and Metabolism, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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25
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Yu Z, Xie X, Su X, Lv H, Song S, Liu C, You Y, Tian M, Zhu L, Wang L, Qi J, Zhu Q. ATRA-mediated-crosstalk between stellate cells and Kupffer cells inhibits autophagy and promotes NLRP3 activation in acute liver injury. Cell Signal 2022; 93:110304. [DOI: 10.1016/j.cellsig.2022.110304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 02/23/2022] [Accepted: 03/05/2022] [Indexed: 11/28/2022]
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26
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Bozhkov A, Ionov I, Kurhuzova N, Novikova A, Katerynych О, Akzhyhitov R. Vitamin A intake forms resistance to hypervitaminosis A and affects the functional activity of the liver. CLINICAL NUTRITION OPEN SCIENCE 2022. [DOI: 10.1016/j.nutos.2021.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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27
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Gu L, Zhang F, Wu J, Zhuge Y. Nanotechnology in Drug Delivery for Liver Fibrosis. Front Mol Biosci 2022; 8:804396. [PMID: 35087870 PMCID: PMC8787125 DOI: 10.3389/fmolb.2021.804396] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 12/17/2021] [Indexed: 12/15/2022] Open
Abstract
Liver fibrosis is a reversible disease course caused by various liver injury etiologies, and it can lead to severe complications, such as liver cirrhosis, liver failure, and even liver cancer. Traditional pharmacotherapy has several limitations, such as inadequate therapeutic effect and side effects. Nanotechnology in drug delivery for liver fibrosis has exhibited great potential. Nanomedicine improves the internalization and penetration, which facilitates targeted drug delivery, combination therapy, and theranostics. Here, we focus on new targets and new mechanisms in liver fibrosis, as well as recent designs and development work of nanotechnology in delivery systems for liver fibrosis treatment.
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Affiliation(s)
- Lihong Gu
- Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
| | - Feng Zhang
- Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
| | - Jinhui Wu
- State Key Laboratory of Pharmaceutical Biotechnology, Chemistry and Biomedicine Innovation Center, Medical School of Nanjing University, Nanjing, China
- Jiangsu Key Laboratory for Nano Technology, Nanjing University, Nanjing, China
| | - Yuzheng Zhuge
- Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
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Baghaei K, Mazhari S, Tokhanbigli S, Parsamanesh G, Alavifard H, Schaafsma D, Ghavami S. Therapeutic potential of targeting regulatory mechanisms of hepatic stellate cell activation in liver fibrosis. Drug Discov Today 2021; 27:1044-1061. [PMID: 34952225 DOI: 10.1016/j.drudis.2021.12.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 11/11/2021] [Accepted: 12/17/2021] [Indexed: 11/03/2022]
Abstract
Hepatic fibrosis is a manifestation of different etiologies of liver disease with the involvement of multiple mediators in complex network interactions. Activated hepatic stellate cells (aHSCs) are the central driver of hepatic fibrosis, given their potential to induce connective tissue formation and extracellular matrix (ECM) protein accumulation. Therefore, identifying the cellular and molecular pathways involved in the activation of HSCs is crucial in gaining mechanistic and therapeutic perspectives to more effectively target the disease. In addition to a comprehensive summary of our current understanding of the role of HSCs in liver fibrosis, we also discuss here the proposed therapeutic strategies based on targeting HSCs.
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Affiliation(s)
- Kaveh Baghaei
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran 1985717413, Iran; Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran 1985717413, Iran
| | - Sogol Mazhari
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran 1985717413, Iran
| | - Samaneh Tokhanbigli
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran 1985717413, Iran
| | - Gilda Parsamanesh
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran 1985717413, Iran
| | - Helia Alavifard
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran 1985717413, Iran
| | | | - Saeid Ghavami
- Department of Human Anatomy and Cell Science, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada.
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Abstract
Hepatic fibrosis is a reversible wound healing process following liver injury. Although this process is necessary for maintaining liver integrity, severe excessive extracellular matrix accumulation (ECM) could lead to permanent scar formation and destroy the liver structure. The activation of hepatic stellate cells (HSCs) is a key event in hepatic fibrosis. Previous studies show that most antifibrotic therapies focus on the apoptosis of HSCs and the prevention of HSC activation. Noncoding RNAs (ncRNAs) play a substantial role in HSC activation and are likely to be biomarkers or therapeutic targets for the treatment of hepatic fibrosis. This review summarizes and discusses the previously reported ncRNAs, including the microRNAs, long noncoding RNAs, and circular RNAs, highlighting their regulatory roles and interactions in the signaling pathways that regulate HSC activation in hepatic fibrosis.
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Peng Y, Li Z, Chen S, Zhou J. DHFR silence alleviated the development of liver fibrosis by affecting the crosstalk between hepatic stellate cells and macrophages. J Cell Mol Med 2021; 25:10049-10060. [PMID: 34626074 PMCID: PMC8572769 DOI: 10.1111/jcmm.16935] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 08/26/2021] [Accepted: 09/01/2021] [Indexed: 01/20/2023] Open
Abstract
Liver fibrogenesis is a dynamic cellular and tissue process which has the potential to progress into cirrhosis of even liver cancer and liver failure. The activation of hepatic stellate cells (HSCs) is the central event underlying liver fibrosis. Besides, hepatic macrophages have been proposed as potential targets in combatting fibrosis. As for the relationship between HSCs and hepatic macrophages in liver fibrosis, it is generally considered that macrophages promoted liver fibrosis via activating HSCs. However, whether activated HSCs could in turn affect macrophage polarization has rarely been studied. In this study, mRNAs with significant differences were explored using exosomal RNA‐sequencing of activated Lx‐2 cells and normal RNA‐sequencing of DHFR loss‐of‐function Lx‐2 cell models. Cell functional experiments in both Lx‐2 cells and macrophages animal model experiments were performed. The results basically confirmed exosomes secreted from activated HSCs could promote M1 polarization of macrophages further. Exosome harbouring DHFR played an important role in this process. DHFR silence in HSCs could decrease Lx‐2 activation and M1 polarization of M0 macrophages and then alleviate the development of liver fibrosis both in vitro and vivo. Our work brought a new insight that exosomal DHFR derived from HSCs had a crucial role in crosstalk between HSCs activation and macrophage polarization, which may be a potential therapeutic target in liver fibrosis.
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Affiliation(s)
- Yu Peng
- Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Zedong Li
- Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Sheng Chen
- Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Jun Zhou
- Department of Emergency Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
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31
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Lu T, Prakash J. Nanomedicine Strategies to Enhance Tumor Drug Penetration in Pancreatic Cancer. Int J Nanomedicine 2021; 16:6313-6328. [PMID: 34552327 PMCID: PMC8450289 DOI: 10.2147/ijn.s279192] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 08/30/2021] [Indexed: 12/24/2022] Open
Abstract
Pancreatic cancer is one of the most malignant tumors with one of the worst survival rates due to its insidious onset and resistance to therapies. Most therapeutics show a desired anticancer effect in vitro; however, very poor efficacy in vivo because of the limited drug delivery and penetration into pancreatic tumors attributed to the abundance of the tumor stroma, ie, the fibrotic tumor microenvironment surrounding the cancer cells. For a better understanding of the challenges posed by the pancreatic tumor stroma, we outline the key features of the tumor microenvironment. Then we highlight major strategies used to tackle the challenges to improve drug penetration into the tumor and achieve enhanced efficacy (pre)clinically. Furthermore, we describe nanomedicine strategies to modulate the tumor stroma, degrade the extracellular matrix, and co-deliver multi-functional drugs, to improve the chemotherapeutics delivery and penetration into pancreatic tumors.
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Affiliation(s)
- Tao Lu
- Engineered Therapeutics Group, Department of Biomaterials Science and Technology, University of Twente, Enschede, The Netherlands
| | - Jai Prakash
- Engineered Therapeutics Group, Department of Biomaterials Science and Technology, University of Twente, Enschede, The Netherlands
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32
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Vacani-Martins N, Meuser-Batista M, dos Santos CDLP, Hasslocher-Moreno AM, Henriques-Pons A. The Liver and the Hepatic Immune Response in Trypanosoma cruzi Infection, a Historical and Updated View. Pathogens 2021; 10:pathogens10091074. [PMID: 34578107 PMCID: PMC8465576 DOI: 10.3390/pathogens10091074] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 08/05/2021] [Accepted: 08/11/2021] [Indexed: 12/12/2022] Open
Abstract
Chagas disease was described more than a century ago and, despite great efforts to understand the underlying mechanisms that lead to cardiac and digestive manifestations in chronic patients, much remains to be clarified. The disease is found beyond Latin America, including Japan, the USA, France, Spain, and Australia, and is caused by the protozoan Trypanosoma cruzi. Dr. Carlos Chagas described Chagas disease in 1909 in Brazil, and hepatomegaly was among the clinical signs observed. Currently, hepatomegaly is cited in most papers published which either study acutely infected patients or experimental models, and we know that the parasite can infect multiple cell types in the liver, especially Kupffer cells and dendritic cells. Moreover, liver damage is more pronounced in cases of oral infection, which is mainly found in the Amazon region. However, the importance of liver involvement, including the hepatic immune response, in disease progression does not receive much attention. In this review, we present the very first paper published approaching the liver's participation in the infection, as well as subsequent papers published in the last century, up to and including our recently published results. We propose that, after infection, activated peripheral T lymphocytes reach the liver and induce a shift to a pro-inflammatory ambient environment. Thus, there is an immunological integration and cooperation between peripheral and hepatic immunity, contributing to disease control.
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Affiliation(s)
- Natalia Vacani-Martins
- Laboratório de Inovações em Terapias, Ensino e Bioprodutos, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro 21041-361, Brazil; (N.V.-M.); (C.d.L.P.d.S.)
| | - Marcelo Meuser-Batista
- Depto de Anatomia Patológica e Citopatologia, Instituto Fernandes Figueira, Fundação Oswaldo Cruz, Rio de Janeiro 22250-020, Brazil;
| | - Carina de Lima Pereira dos Santos
- Laboratório de Inovações em Terapias, Ensino e Bioprodutos, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro 21041-361, Brazil; (N.V.-M.); (C.d.L.P.d.S.)
| | | | - Andrea Henriques-Pons
- Laboratório de Inovações em Terapias, Ensino e Bioprodutos, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro 21041-361, Brazil; (N.V.-M.); (C.d.L.P.d.S.)
- Correspondence:
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Quantitative real-time measurement of endothelin-1-induced contraction in single non-activated hepatic stellate cells. PLoS One 2021; 16:e0255656. [PMID: 34343209 PMCID: PMC8330899 DOI: 10.1371/journal.pone.0255656] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Accepted: 07/21/2021] [Indexed: 12/13/2022] Open
Abstract
Although quiescent hepatic stellate cells (HSCs) have been suggested to regulate hepatic blood flow, there is no direct evidence that quiescent HSCs display contractile abilities. Here, we developed a new method to quantitatively measure the contraction of single isolated HSCs and evaluated whether endothelin-1 (ET-1) induced contraction of HSCs in a non-activated state. HSCs isolated from mice were seeded on collagen gel containing fluorescent beads. The beads around a single HSC were observed gravitating toward the cell upon contraction. By recording the movement of each bead by fluorescent microscopy, the real-time contraction of HSCs was quantitatively evaluated. ET-1 induced a slow contraction of non-activated HSCs, which was inhibited by the non-muscle myosin II inhibitor blebbistatin, the calmodulin inhibitor W-7, and the ETA receptor antagonist ambrisentan. ET-1-induced contraction was also largely reduced in Ca2+-free conditions, but sustained contraction still remained. The tonic contraction was further diminished by the Rho-kinase inhibitor H-1152. The mRNA expression of P/Q-type voltage-dependent Ca2+ channels (VDCC), as well as STIM and Orai, constituents of store-operated channels (SOCs), was observed in mouse non-activated HSCs. ET-1-induced contraction was not affected by amlodipine, a VDCC blocker, whereas it was partly reduced by Gd3+ and amiloride, non-selective cation channel blockers. However, neither YM-58483 nor SKF-96365, which inhibit SOCs, had any effects on the contraction. These results suggest that ET-1 leads to Ca2+-influx through cation channels other than SOCs and produces myosin II-mediated contraction of non-activated HSCs via ETA receptors, as well as via mechanisms involving Ca2+-calmodulin and Rho kinase.
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Affo S, Nair A, Brundu F, Ravichandra A, Bhattacharjee S, Matsuda M, Chin L, Filliol A, Wen W, Song X, Decker A, Worley J, Caviglia JM, Yu L, Yin D, Saito Y, Savage T, Wells RG, Mack M, Zender L, Arpaia N, Remotti HE, Rabadan R, Sims P, Leblond AL, Weber A, Riener MO, Stockwell BR, Gaublomme J, Llovet JM, Kalluri R, Michalopoulos GK, Seki E, Sia D, Chen X, Califano A, Schwabe RF. Promotion of cholangiocarcinoma growth by diverse cancer-associated fibroblast subpopulations. Cancer Cell 2021; 39:866-882.e11. [PMID: 33930309 PMCID: PMC8241235 DOI: 10.1016/j.ccell.2021.03.012] [Citation(s) in RCA: 141] [Impact Index Per Article: 47.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 01/26/2021] [Accepted: 03/29/2021] [Indexed: 12/15/2022]
Abstract
Cancer-associated fibroblasts (CAF) are a poorly characterized cell population in the context of liver cancer. Our study investigates CAF functions in intrahepatic cholangiocarcinoma (ICC), a highly desmoplastic liver tumor. Genetic tracing, single-cell RNA sequencing, and ligand-receptor analyses uncovered hepatic stellate cells (HSC) as the main source of CAF and HSC-derived CAF as the dominant population interacting with tumor cells. In mice, CAF promotes ICC progression, as revealed by HSC-selective CAF depletion. In patients, a high panCAF signature is associated with decreased survival and increased recurrence. Single-cell RNA sequencing segregates CAF into inflammatory and growth factor-enriched (iCAF) and myofibroblastic (myCAF) subpopulations, displaying distinct ligand-receptor interactions. myCAF-expressed hyaluronan synthase 2, but not type I collagen, promotes ICC. iCAF-expressed hepatocyte growth factor enhances ICC growth via tumor-expressed MET, thus directly linking CAF to tumor cells. In summary, our data demonstrate promotion of desmoplastic ICC growth by therapeutically targetable CAF subtype-specific mediators, but not by type I collagen.
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Affiliation(s)
- Silvia Affo
- Department of Medicine, Columbia University, New York, NY 10032, USA
| | - Ajay Nair
- Department of Systems Biology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Francesco Brundu
- Department of Systems Biology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | | | | | - Michitaka Matsuda
- Department of Medicine, Division of Digestive and Liver Diseases, Cedars-Sinai Medical Center, Los Angeles, CA 90024, USA
| | - LiKang Chin
- Department of Medicine, Penn Physical Sciences in Oncology Center PSOC@Penn, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Aveline Filliol
- Department of Medicine, Columbia University, New York, NY 10032, USA
| | - Wen Wen
- Department of Medicine, Columbia University, New York, NY 10032, USA
| | - Xinhua Song
- Department of Bioengineering and Therapeutic Sciences and Liver Center, University of California, San Francisco, CA 94158, USA
| | - Aubrianna Decker
- Department of Biological Sciences, Columbia University, New York, NY 10027, USA
| | - Jeremy Worley
- Department of Systems Biology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | | | - Lexing Yu
- Department of Medicine, Columbia University, New York, NY 10032, USA
| | - Deqi Yin
- Department of Medicine, Columbia University, New York, NY 10032, USA
| | - Yoshinobu Saito
- Department of Medicine, Columbia University, New York, NY 10032, USA
| | - Thomas Savage
- Department of Microbiology and Immunology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA
| | - Rebecca G Wells
- Department of Medicine, Penn Physical Sciences in Oncology Center PSOC@Penn, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Matthias Mack
- Department of Nephrology, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Lars Zender
- Department of Medical Oncology and Pneumology, University Hospital Tuebingen, 72076 Tuebingen, Germany; German Cancer Research Consortium (DKTK), German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany; iFIT Cluster of Excellence EXC 2180, University of Tuebingen, 72076 Tuebingen, Germany
| | - Nicholas Arpaia
- Department of Microbiology and Immunology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA; Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY 10032, USA
| | - Helen E Remotti
- Department of Pathology & Cell Biology, Columbia University, New York, NY 10032, USA
| | - Raul Rabadan
- Department of Systems Biology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Peter Sims
- Department of Systems Biology, Columbia University, New York, NY 10032, USA
| | - Anne-Laure Leblond
- Department for Pathology and Molecular Pathology, Zürich University Hospital, 8091 Zürich, Switzerland
| | - Achim Weber
- Department for Pathology and Molecular Pathology, Zürich University Hospital, 8091 Zürich, Switzerland
| | - Marc-Oliver Riener
- Department for Pathology and Molecular Pathology, Zürich University Hospital, 8091 Zürich, Switzerland
| | - Brent R Stockwell
- Department of Biological Sciences, Columbia University, New York, NY 10027, USA; Department of Chemistry, Columbia University, New York, NY 10027, USA
| | - Jellert Gaublomme
- Department of Biological Sciences, Columbia University, New York, NY 10027, USA
| | - Josep M Llovet
- Liver Cancer Translational Research Laboratory, Institut d'Investigacions Biomèdiques August Pi i Sunyer, Hospital Clínic, Universitat de Barcelona, 08036 Barcelona, Spain; Mount Sinai Liver Cancer Program, Divisions of Liver Diseases, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Institució Catalana de Recerca i Estudis Avançats, Barcelona, Spain
| | - Raghu Kalluri
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | | | - Ekihiro Seki
- Department of Medicine, Division of Digestive and Liver Diseases, Cedars-Sinai Medical Center, Los Angeles, CA 90024, USA
| | - Daniela Sia
- Mount Sinai Liver Cancer Program, Divisions of Liver Diseases, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Xin Chen
- Department of Bioengineering and Therapeutic Sciences and Liver Center, University of California, San Francisco, CA 94158, USA
| | - Andrea Califano
- Department of Medicine, Columbia University, New York, NY 10032, USA; Department of Systems Biology, Columbia University Irving Medical Center, New York, NY 10032, USA; Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY 10032, USA; Department of Systems Biology, Columbia University, New York, NY 10032, USA; Department of Biomedical Informatics, Columbia University, New York, NY 10032, USA; Department of Biochemistry & Molecular Biophysics, Columbia University, New York, NY 10032, USA
| | - Robert F Schwabe
- Department of Medicine, Columbia University, New York, NY 10032, USA; Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY 10032, USA; Institute of Human Nutrition, Columbia University, New York, NY 10032, USA.
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Tumor Immune Microenvironment and Immunosuppressive Therapy in Hepatocellular Carcinoma: A Review. Int J Mol Sci 2021; 22:ijms22115801. [PMID: 34071550 PMCID: PMC8198390 DOI: 10.3390/ijms22115801] [Citation(s) in RCA: 172] [Impact Index Per Article: 57.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 05/15/2021] [Accepted: 05/24/2021] [Indexed: 12/24/2022] Open
Abstract
Liver cancer has the fourth highest mortality rate of all cancers worldwide, with hepatocellular carcinoma (HCC) being the most prevalent subtype. Despite great advances in systemic therapy, such as molecular-targeted agents, HCC has one of the worst prognoses due to drug resistance and frequent recurrence and metastasis. Recently, new therapeutic strategies such as cancer immunosuppressive therapy have prolonged patients' lives, and the combination of an immune checkpoint inhibitor (ICI) and VEGF inhibitor is now positioned as the first-line therapy for advanced HCC. Since the efficacy of ICIs depends on the tumor immune microenvironment, it is necessary to elucidate the immune environment of HCC to select appropriate ICIs. In this review, we summarize the findings on the immune microenvironment and immunosuppressive approaches focused on monoclonal antibodies against cytotoxic T lymphocyte-associated protein 4 and programmed cell death protein 1 for HCC. We also describe ongoing treatment modalities, including adoptive cell transfer-based therapies and future areas of exploration based on recent literature. The results of pre-clinical studies using immunological classification and animal models will contribute to the development of biomarkers that predict the efficacy of immunosuppressive therapy and aid in the selection of appropriate strategies for HCC treatment.
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Alarcón S, Esteban J, Roos R, Heikkinen P, Sánchez-Pérez I, Adamsson A, Toppari J, Koskela A, Finnilä MAJ, Tuukkanen J, Herlin M, Hamscher G, Leslie HA, Korkalainen M, Halldin K, Schrenk D, Håkansson H, Viluksela M. Endocrine, metabolic and apical effects of in utero and lactational exposure to non-dioxin-like 2,2',3,4,4',5,5'-heptachlorobiphenyl (PCB 180): A postnatal follow-up study in rats. Reprod Toxicol 2021; 102:109-127. [PMID: 33992733 DOI: 10.1016/j.reprotox.2021.04.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 04/22/2021] [Accepted: 04/27/2021] [Indexed: 12/19/2022]
Abstract
PCB 180 is a persistent and abundant non-dioxin-like PCB (NDL-PCB). We determined the developmental toxicity profile of ultrapure PCB 180 in developing offspring following in utero and lactational exposure with the focus on endocrine, metabolic and retinoid system alterations. Pregnant rats were given total doses of 0, 10, 30, 100, 300 or 1000 mg PCB 180/kg bw on gestational days 7-10 by oral gavage, and the offspring were sampled on postnatal days (PND) 7, 35 and 84. Decreased serum testosterone and triiodothyronine concentrations on PND 84, altered liver retinoid levels, increased liver weights and induced 7-pentoxyresorufin O-dealkylase (PROD) activity were the sensitive effects used for margin of exposure (MoE) calculations. Liver weights were increased together with induction of the metabolizing enzymes cytochrome P450 (CYP) 2B1, CYP3A1, and CYP1A1. Less sensitive effects included decreased serum estradiol and increased luteinizing hormone levels in females, decreased prostate and seminal vesicle weight and increased pituitary weight in males, increased cortical bone area and thickness of tibial diaphysis in females and decreased cortical bone mineral density in males. Developmental toxicity profiles were partly different in male and female offspring, males being more sensitive to increased liver weight, PROD induction and decreased thyroxine concentrations. MoE assessment indicated that the 95th percentile of current maternal PCB 180 concentrations do not exceed the estimated tolerable human lipid-based PCB 180 concentration. Although PCB 180 is much less potent than dioxin-like compounds, it shares several toxicological targets suggesting a potential for interactions.
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Affiliation(s)
- Sonia Alarcón
- Instituto de Bioingeniería, Universidad Miguel Hernández de Elche, Elche (Alicante), Spain; Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Javier Esteban
- Instituto de Bioingeniería, Universidad Miguel Hernández de Elche, Elche (Alicante), Spain.
| | - Robert Roos
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Päivi Heikkinen
- Environmental Health Unit, Finnish Institute for Health and Welfare (THL), P.O. Box 95, Kuopio, FI-70701, Finland
| | - Ismael Sánchez-Pérez
- Instituto de Bioingeniería, Universidad Miguel Hernández de Elche, Elche (Alicante), Spain
| | - Annika Adamsson
- Research Center for Integrative Physiology and Pharmacology and Centre for Population Health Research, Institute of Biomedicine, University of Turku, Department of Paediatrics, Turku University Hospital, Turku, FI-20520, Finland
| | - Jorma Toppari
- Research Center for Integrative Physiology and Pharmacology and Centre for Population Health Research, Institute of Biomedicine, University of Turku, Department of Paediatrics, Turku University Hospital, Turku, FI-20520, Finland
| | - Antti Koskela
- Department of Anatomy and Cell Biology, Institute of Cancer Research and Translational Medicine, University of Oulu, Oulu, Finland
| | - Mikko A J Finnilä
- Research Unit of Medical Imaging, Physics and Technology, Faculty of Medicine, University of Oulu, Oulu, Finland
| | - Juha Tuukkanen
- Department of Anatomy and Cell Biology, Institute of Cancer Research and Translational Medicine, University of Oulu, Oulu, Finland
| | - Maria Herlin
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Gerd Hamscher
- Institute of Food Chemistry and Food Biotechnology, Justus Liebig University, Giessen, D-35392, Germany
| | - Heather A Leslie
- Department of Environment and Health, Vrije Universiteit Amsterdam, De Boelelaan 1108, Amsterdam, NL-1081 HZ, The Netherlands
| | - Merja Korkalainen
- Environmental Health Unit, Finnish Institute for Health and Welfare (THL), P.O. Box 95, Kuopio, FI-70701, Finland
| | - Krister Halldin
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Dieter Schrenk
- Food Chemistry and Toxicology, University of Kaiserslautern, Kaiserslautern, D-67663, Germany
| | - Helen Håkansson
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Matti Viluksela
- School of Pharmacy (Toxicology), Department of Environmental and Biological Sciences, University of Eastern Finland, Kuopio, Finland
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Peng W, Cheng S, Bao Z, Wang Y, Zhou W, Wang J, Yang Q, Chen C, Wang W. Advances in the research of nanodrug delivery system for targeted treatment of liver fibrosis. Biomed Pharmacother 2021; 137:111342. [DOI: 10.1016/j.biopha.2021.111342] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 01/23/2021] [Accepted: 01/27/2021] [Indexed: 02/08/2023] Open
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Zivko C, Fuhrmann G, Luciani P. Liver-derived extracellular vesicles: A cell by cell overview to isolation and characterization practices. Biochim Biophys Acta Gen Subj 2021; 1865:129559. [DOI: 10.1016/j.bbagen.2020.129559] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 01/16/2020] [Accepted: 02/11/2020] [Indexed: 02/08/2023]
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Galbán-Velázquez S, Esteban J, Çakmak G, Artacho-Cordón F, León J, Barril J, Vela-Soria F, Martin-Olmedo P, Fernandez MF, Pellín MC, Arrebola JP. Associations of persistent organic pollutants in human adipose tissue with retinoid levels and their relevance to the redox microenvironment. ENVIRONMENTAL RESEARCH 2021; 195:110764. [PMID: 33497679 PMCID: PMC8127078 DOI: 10.1016/j.envres.2021.110764] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 01/12/2021] [Accepted: 01/17/2021] [Indexed: 05/30/2023]
Abstract
Humans are exposed to a myriad of chemical substances in both occupational and environmental settings. Persistent organic pollutants (POPs) have drawn attention for their adverse effects including cancer and endocrine disruption. Herein, the objectives were 1) to describe serum and adipose tissue retinol levels, along with serum retinol binding protein 4 (RBP4) concentrations, and 2) to assess the associations of adipose tissue POP levels with these retinoid parameters, as well as their potential interaction with the previously-observed POP-related disruption of redox microenvironment. Retinol was measured in both serum and adipose tissue along with RBP4 levels in serum samples of 236 participants of the GraMo adult cohort. Associations were explored by multivariable linear regression analyses and Weighted Quantile Sum regression. Polychlorinated biphenyls (PCBs) 180, 153 and 138 were related to decreased adipose tissue retinol levels and increased serum RBP4/retinol ratio. Dicofol concentrations > limit of detection were associated with decreased retinol levels in serum and adipose tissue. Additionally, increased adipose tissue retinol levels were linked to an attenuation in previously-reported associations of adipose tissue PCB-153 with in situ superoxide dismutase activity. Our results revealed a suggestive link between retinoids, PCBs and redox microenvironment, potentially relevant for both mechanistic and public health purposes.
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Affiliation(s)
| | - Javier Esteban
- Instituto de Bioingeniería, Universidad Miguel Hernández de Elche, Elche, Spain.
| | - Gonca Çakmak
- Instituto de Bioingeniería, Universidad Miguel Hernández de Elche, Elche, Spain; Department of Toxicology, Faculty of Pharmacy, Gazi University, 06330, Ankara, Turkey
| | - Francisco Artacho-Cordón
- Department of Radiology and Physical Medicine, University of Granada, 18016, Granada, Spain; CIBER Epidemiology and Public Health (CIBERESP), 28029, Madrid, Spain
| | - Josefa León
- Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain; Unidad de Gestión Clínica de Aparato Digestivo, Hospital Universitario San Cecilio de Granada, Spain; CIBER Hepatic and Digestive Diseases (CIBEREHD), 28029, Madrid, Spain
| | - Jose Barril
- Instituto de Bioingeniería, Universidad Miguel Hernández de Elche, Elche, Spain
| | | | - Piedad Martin-Olmedo
- Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain; Andalusian School of Public Health, 18011, Granada, Spain
| | - Mariana F Fernandez
- Department of Radiology and Physical Medicine, University of Granada, 18016, Granada, Spain; CIBER Epidemiology and Public Health (CIBERESP), 28029, Madrid, Spain; Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain
| | - M Cruz Pellín
- Instituto de Bioingeniería, Universidad Miguel Hernández de Elche, Elche, Spain
| | - Juan P Arrebola
- CIBER Epidemiology and Public Health (CIBERESP), 28029, Madrid, Spain; Instituto de Investigación Biosanitaria Ibs.GRANADA, Granada, Spain; Department of Preventive Medicine and Public Health, University of Granada, Spain
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Esteban J, Sánchez-Pérez I, Hamscher G, Miettinen HM, Korkalainen M, Viluksela M, Pohjanvirta R, Håkansson H. Role of aryl hydrocarbon receptor (AHR) in overall retinoid metabolism: Response comparisons to 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) exposure between wild-type and AHR knockout mice. Reprod Toxicol 2021; 101:33-49. [PMID: 33607186 DOI: 10.1016/j.reprotox.2021.02.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 01/20/2021] [Accepted: 02/10/2021] [Indexed: 02/06/2023]
Abstract
Young adult wild-type and aryl hydrocarbon receptor knockout (AHRKO) mice of both sexes and the C57BL/6J background were exposed to 10 weekly oral doses of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD; total dose of 200 μg/kg bw) to further characterize the observed impacts of AHR as well as TCDD on the retinoid system. Unexposed AHRKO mice harboured heavier kidneys, lighter livers and lower serum all-trans retinoic acid (ATRA) and retinol (REOH) concentrations than wild-type mice. Results from the present study also point to a role for the murine AHR in the control of circulating REOH and ATRA concentrations. In wild-type mice, TCDD elevated liver weight and reduced thymus weight, and drastically reduced the hepatic concentrations of 9-cis-4-oxo-13,14-dihydro-retinoic acid (CORA) and retinyl palmitate (REPA). In female wild-type mice, TCDD increased the hepatic concentration of ATRA as well as the renal and circulating REOH concentrations. Renal CORA concentrations were substantially diminished in wild-type male mice exclusively following TCDD-exposure, with a similar tendency in serum. In contrast, TCDD did not affect any of these toxicity or retinoid system parameters in AHRKO mice. Finally, a distinct sex difference occurred in kidney concentrations of all the analysed retinoid forms. Together, these results strengthen the evidence of a mandatory role of AHR in TCDD-induced retinoid disruption, and suggest that the previously reported accumulation of several retinoid forms in the liver of AHRKO mice is a line-specific phenomenon. Our data further support participation of AHR in the control of liver and kidney development in mice.
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Affiliation(s)
- Javier Esteban
- Instituto De Bioingeniería, Universidad Miguel Hernández De Elche, Elche, Alicante, Spain.
| | - Ismael Sánchez-Pérez
- Instituto De Bioingeniería, Universidad Miguel Hernández De Elche, Elche, Alicante, Spain.
| | - Gerd Hamscher
- Institute of Food Chemistry and Food Biotechnology, Justus Liebig University Giessen, Giessen, Germany.
| | - Hanna M Miettinen
- School of Pharmacy (Toxicology) and Department of Environmental and Biological Sciences, University of Eastern Finland, Kuopio, Finland.
| | - Merja Korkalainen
- Environmental Health Unit, Finnish Insitute for Health and Welfare (THL), Kuopio, Finland.
| | - Matti Viluksela
- School of Pharmacy (Toxicology) and Department of Environmental and Biological Sciences, University of Eastern Finland, Kuopio, Finland; Environmental Health Unit, Finnish Insitute for Health and Welfare (THL), Kuopio, Finland.
| | - Raimo Pohjanvirta
- Department of Food Hygiene & Environmental Health, Faculty of Veterinary Medicine, University of Helsinki, Mustialankatu 1, FI-00790 Helsinki, Finland.
| | - Helen Håkansson
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
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Kiseleva YV, Antonyan SZ, Zharikova TS, Tupikin KA, Kalinin DV, Zharikov YO. Molecular pathways of liver regeneration: A comprehensive review. World J Hepatol 2021; 13:270-290. [PMID: 33815672 PMCID: PMC8006075 DOI: 10.4254/wjh.v13.i3.270] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 01/20/2021] [Accepted: 03/12/2021] [Indexed: 02/06/2023] Open
Abstract
The liver is a unique parenchymal organ with a regenerative capacity allowing it to restore up to 70% of its volume. Although knowledge of this phenomenon dates back to Greek mythology (the story of Prometheus), many aspects of liver regeneration are still not understood. A variety of different factors, including inflammatory cytokines, growth factors, and bile acids, promote liver regeneration and control the final size of the organ during typical regeneration, which is performed by mature hepatocytes, and during alternative regeneration, which is performed by recently identified resident stem cells called “hepatic progenitor cells”. Hepatic progenitor cells drive liver regeneration when hepatocytes are unable to restore the liver mass, such as in cases of chronic injury or excessive acute injury. In liver maintenance, the body mass ratio is essential for homeostasis because the liver has numerous functions; therefore, a greater understanding of this process will lead to better control of liver injuries, improved transplantation of small grafts and the discovery of new methods for the treatment of liver diseases. The current review sheds light on the key molecular pathways and cells involved in typical and progenitor-dependent liver mass regeneration after various acute or chronic injuries. Subsequent studies and a better understanding of liver regeneration will lead to the development of new therapeutic methods for liver diseases.
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Affiliation(s)
- Yana V Kiseleva
- International School “Medicine of the Future”, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow 119435, Russia
| | - Sevak Z Antonyan
- Department of Emergency Surgical Gastroenterology, N. V. Sklifosovsky Research Institute for Emergency Medicine, Moscow 129010, Russia
| | - Tatyana S Zharikova
- Department of Human Anatomy, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow 119048, Russia
| | - Kirill A Tupikin
- Laboratory of Minimally Invasive Surgery, A.I. Evdokimov Moscow State University of Medicine and Dentistry, Moscow 127473, Russia
| | - Dmitry V Kalinin
- Pathology Department, A.V. Vishnevsky National Medical Research Center of Surgery of the Russian Ministry of Healthcare, Moscow 117997, Russia
| | - Yuri O Zharikov
- Department of Human Anatomy, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow 119048, Russia
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Abstract
The fat-soluble vitamins are vitamins A, D, E, and K. Each vitamin has unique characteristics and contributes to the overall health of an individual. These vitamins have complex absorption, metabolism, and distribution elements that provide protection to the cells in the body as well as many organs. Fat-soluble vitamins, once ingested and processed, are stored in the body for use. Most fat-soluble vitamins are obtained from fruits, vegetables, nuts, and animals.
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Affiliation(s)
- Sherri L Stevens
- School of Nursing, Middle Tennessee State University, MTSU Box 81, Murfreesboro, TN 37132, USA.
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Yang JH, Ku SK, Cho ILJ, Lee JH, Na CS, Ki SH. Neoagarooligosaccharide Protects against Hepatic Fibrosis via Inhibition of TGF-β/Smad Signaling Pathway. Int J Mol Sci 2021; 22:2041. [PMID: 33670808 PMCID: PMC7922480 DOI: 10.3390/ijms22042041] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 02/16/2021] [Accepted: 02/16/2021] [Indexed: 01/12/2023] Open
Abstract
Hepatic fibrosis occurs when liver tissue becomes scarred from repetitive liver injury and inflammatory responses; it can progress to cirrhosis and eventually to hepatocellular carcinoma. Previously, we reported that neoagarooligosaccharides (NAOs), produced by the hydrolysis of agar by β-agarases, have hepatoprotective effects against acetaminophen overdose-induced acute liver injury. However, the effect of NAOs on chronic liver injury, including hepatic fibrosis, has not yet been elucidated. Therefore, we examined whether NAOs protect against fibrogenesis in vitro and in vivo. NAOs ameliorated PAI-1, α-SMA, CTGF and fibronectin protein expression and decreased mRNA levels of fibrogenic genes in TGF-β-treated LX-2 cells. Furthermore, downstream of TGF-β, the Smad signaling pathway was inhibited by NAOs in LX-2 cells. Treatment with NAOs diminished the severity of hepatic injury, as evidenced by reduction in serum alanine aminotransferase and aspartate aminotransferase levels, in carbon tetrachloride (CCl4)-induced liver fibrosis mouse models. Moreover, NAOs markedly blocked histopathological changes and collagen accumulation, as shown by H&E and Sirius red staining, respectively. Finally, NAOs antagonized the CCl4-induced upregulation of the protein and mRNA levels of fibrogenic genes in the liver. In conclusion, our findings suggest that NAOs may be a promising candidate for the prevention and treatment of chronic liver injury via inhibition of the TGF-β/Smad signaling pathway.
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Affiliation(s)
- Ji Hye Yang
- College of Korean Medicine, Dongshin University, Naju, Jeollanam-do 58245, Korea;
| | - Sae Kwang Ku
- College of Korean Medicine, Daegu Haany University, Gyeongsan, Gyeongsangbuk-do 38610, Korea; (S.K.K.); (I.J.C.)
| | - IL Je Cho
- College of Korean Medicine, Daegu Haany University, Gyeongsan, Gyeongsangbuk-do 38610, Korea; (S.K.K.); (I.J.C.)
| | - Je Hyeon Lee
- Dyne Bio Inc. Seongnam-si, Gyeonggi-do 13209, Korea;
| | - Chang-Su Na
- College of Korean Medicine, Dongshin University, Naju, Jeollanam-do 58245, Korea;
| | - Sung Hwan Ki
- College of Pharmacy, Chosun University, Seoseok-dong, Gwangju 61452, Korea
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Abstract
Fatty acid translocase (CD36) is a scavenger receptor with multiple ligands and diverse physiological actions. We recently reported that alcohol-induced hepatic retinoid mobilization is impaired in Cd36−/− mice, leading us to hypothesize that CD36 has a novel role in hepatic vitamin A mobilization. Given the central role of the liver in systemic vitamin A homeostasis we also postulated that absence of CD36 would affect whole-body vitamin A homeostasis. We tested this hypothesis in aging wild type and Cd36−/− mice, as well as mice fed a vitamin A-deficient diet. In agreement with our hypothesis, Cd36−/− mice accumulated hepatic retinyl ester stores with age to a greater extent than wild type mice. However, contrary to expectations, Cd36−/− mice consuming a vitamin A-deficient diet mobilized hepatic retinoid similar to wild type mice. Interestingly, we observed that Cd36−/− mice had significantly reduced white adipose tissue retinoid levels compared to wild type mice. In conclusion, we demonstrate that the absence of CD36 alters whole-body vitamin A homeostasis and suggest that this phenotype is secondary to the impaired chylomicron metabolism previously reported in these mice.
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Kimura M, Mikami K, Endo T, Matsuzaka M, Sawada N, Igarashi G, Iino C, Hasegawa T, Sawada K, Ando M, Tokuda I, Suganuma H, Matsumoto M, Nakaji S, Fukuda S. Association between serum β-carotene-to-retinol ratio and severity of hepatic steatosis in non-alcoholic fatty liver disease in Japan: A cross-sectional study. Nutrition 2020; 79-80:110984. [PMID: 32966920 DOI: 10.1016/j.nut.2020.110984] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 07/29/2020] [Accepted: 08/19/2020] [Indexed: 02/06/2023]
Abstract
OBJECTIVES Retinol and β-carotene have been reported to be involved in the pathogenesis of non-alcoholic fatty liver disease (NAFLD). However, clinical studies are limited. The aim of this study was to investigate the relationship between serum the ratio of β-carotene to retinol (SC/SR) and hepatic steatosis in NAFLD diagnosed by ultrasonography. METHODS The participants were 606 Japanese adults who were enrolled in a health survey. Clinical profile, dietary nutrition intake, blood biochemistry, serum retinol, and carotenoids were analyzed. NAFLD was defined as fatty liver on ultrasonography in the absence of other causes of steatosis. RESULTS Women had higher daily intake of α- and β-carotene, although there were no differences in daily retinol and carotenoid intake between participants with or without NAFLD in both men and women. Women had a higher SC/SR ratio than men regardless of the presence or absence of NAFLD, and the SC/SR ratio in women decreased with exacerbation of hepatic steatosis, whereas the SC/SR ratio in men did not change despite exacerbation of hepatic steatosis. After adjusting for confounding factors, the likelihood of NAFLD among participants in the highest quartile of SC/SR ratio decreased by two-thirds compared with participants in the lowest quartile (adjusted odds ratio, 0.64; 95% confidence interval, 0.21-1.92; P = 0.041). The SC/SR ratio was positively correlated with serum high-density lipoprotein cholesterol level, and negatively correlated with serum triacylglycerol level. CONCLUSIONS The SC/SR ratio was lower in NAFLD with sex differences, and was associated with the severity of hepatic steatosis and lipid profile. Future studies are needed to expand on these findings.
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Affiliation(s)
- Masayo Kimura
- Department of Gastroenterology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Kenichiro Mikami
- Department of Gastroenterology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.
| | - Tetsu Endo
- Department of Gastroenterology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Masashi Matsuzaka
- Clinical Research Support Center, Hirosaki University Hospital, Hirosaki, Japan
| | - Naoya Sawada
- Department of Gastroenterology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Go Igarashi
- Department of Gastroenterology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Chikara Iino
- Department of Gastroenterology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Takuma Hasegawa
- Department of Gastroenterology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Kaori Sawada
- Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Masataka Ando
- Department of Diet and health Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Itoyo Tokuda
- Department of Oral Health Care, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | | | - Mai Matsumoto
- Innovation Division, KAGOME CO., LTD., Nasushiobara, Japan
| | - Shigeyuki Nakaji
- Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Shinsaku Fukuda
- Department of Gastroenterology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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Meurer SK, Karsdal MA, Weiskirchen R. Advances in the clinical use of collagen as biomarker of liver fibrosis. Expert Rev Mol Diagn 2020; 20:947-969. [PMID: 32865433 DOI: 10.1080/14737159.2020.1814746] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Hepatic fibrosis is the excessive synthesis and deposition of extracellular matrix including collagen in the tissue. Chronic liver insult leads to progressive parenchymal damage, portal hypertension, and cirrhosis. Determination of hepatic collagen by invasive liver biopsy is the gold standard to estimate severity and stage of fibrosis. However, this procedure is associated with pain, carries the risk of infection and bleeding, and is afflicted with a high degree of sampling error. Therefore, there is urgent need for serological collagen-derived markers to assess collagen synthesis/turnover. AREAS COVERED Biochemical properties of collagens, cellular sources of hepatic collagen synthesis, and regulatory aspects in collagen expression. Markers are discussed suitable to estimate hepatic collagen synthesis and/or turnover. Discussed studies were identified through a PubMed search done in May 2020 and the authors' topic knowledge. EXPERT OPINION Hepatic fibrosis is mainly characterized by accumulation of collagen-rich scar tissue. Although traditionally performed liver biopsy is still standard in estimating hepatic fibrosis, there is evidence that noninvasive diagnostic scores and collagen-derived neo-epitopes provide clinical useful information. These noninvasive tests are less expensive than liver biopsy, better tolerated, safer, and more acceptable to patients. Therefore, these tests will lead to dramatic changes in diagnosis.
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Affiliation(s)
- Steffen K Meurer
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry (IFMPEGKC), RWTH University Hospital Aachen , Aachen, Germany
| | - Morten A Karsdal
- Nordic Bioscience, Fibrosis Biomarkers and Research , Herlev, Denmark
| | - Ralf Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry (IFMPEGKC), RWTH University Hospital Aachen , Aachen, Germany
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Wang W, Huang X, Fan X, Yan J, Luan J. Progress in evaluating the status of hepatitis C infection based on the functional changes of hepatic stellate cells (Review). Mol Med Rep 2020; 22:4116-4124. [PMID: 33000255 DOI: 10.3892/mmr.2020.11516] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 08/18/2020] [Indexed: 11/06/2022] Open
Abstract
Hepatitis C virus (HCV) infection is a global public health problem. Cirrhosis and hepatocellular carcinoma are the main causes of death in patients with chronic hepatitis C (CHC) infection. Liver fibrosis is an important cause of cirrhosis and end‑stage liver disease after CHC infection. Along with the course of infection, liver fibrosis exhibits a progressive exacerbation. Hepatic stellate cells (HSCs) are involved in both physiological and pathological processes of the liver. During the chronic liver injury process, the activated HSCs transform into myofibroblasts, which are important cells in the development of liver fibrosis. At present, HCV infection still lacks specific markers for the accurate detection of the disease condition and progression. Therefore, the present review focused on HSCs, which are closely related to HCV‑infected liver fibrosis, and analyzed the changes in the HSCs, including their surface‑specific markers, cytokine production, activation, cell function and morphological structure. The present review aimed to propose novel diagnostic markers, at both the cellular and molecular level, which would be of great significance for the timely diagnosis of the disease. According to this aim, the characteristic changes of HSCs during HCV infection were reviewed in the present article.
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Affiliation(s)
- Wei Wang
- Department of Blood Transfusion Medicine, School of Medicine, Jinling Hospital, Nanjing University, Nanjing, Jiangsu 210002, P.R. China
| | - Xuelian Huang
- Department of Blood Transfusion Medicine, School of Medicine, Jinling Hospital, Nanjing University, Nanjing, Jiangsu 210002, P.R. China
| | - Xuzhou Fan
- Department of Blood Transfusion Medicine, School of Medicine, Jinling Hospital, Nanjing University, Nanjing, Jiangsu 210002, P.R. China
| | - Jingmei Yan
- Department of Blood Transfusion Medicine, School of Medicine, Jinling Hospital, Nanjing University, Nanjing, Jiangsu 210002, P.R. China
| | - Jianfeng Luan
- Department of Blood Transfusion Medicine, School of Medicine, Jinling Hospital, Nanjing University, Nanjing, Jiangsu 210002, P.R. China
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Saeed A, Bartuzi P, Heegsma J, Dekker D, Kloosterhuis N, de Bruin A, Jonker JW, van de Sluis B, Faber KN. Impaired Hepatic Vitamin A Metabolism in NAFLD Mice Leading to Vitamin A Accumulation in Hepatocytes. Cell Mol Gastroenterol Hepatol 2020; 11:309-325.e3. [PMID: 32698042 PMCID: PMC7768561 DOI: 10.1016/j.jcmgh.2020.07.006] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 07/16/2020] [Accepted: 07/16/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS Systemic retinol (vitamin A) homeostasis is controlled by the liver, involving close collaboration between hepatocytes and hepatic stellate cells (HSCs). Genetic variants in retinol metabolism (PNPLA3 and HSD17B13) are associated with non-alcoholic fatty liver disease (NAFLD) and disease progression. Still, little mechanistic details are known about hepatic vitamin A metabolism in NAFLD, which may affect carbohydrate and lipid metabolism, inflammation, oxidative stress and the development of fibrosis and cancer, e.g. all risk factors of NAFLD. METHODS Here, we analyzed vitamin A metabolism in 2 mouse models of NAFLD; mice fed a high-fat, high-cholesterol (HFC) diet and Leptinob mutant (ob/ob) mice. RESULTS Hepatic retinol and retinol binding protein 4 (RBP4) levels were significantly reduced in both mouse models of NAFLD. In contrast, hepatic retinyl palmitate levels (the vitamin A storage form) were significantly elevated in these mice. Transcriptome analysis revealed a hyperdynamic state of hepatic vitamin A metabolism, with enhanced retinol storage and metabolism (upregulated Lrat, Dgat1, Pnpla3, Raldh's and RAR/RXR-target genes) in fatty livers, in conjunction with induced hepatic inflammation (upregulated Cd68, Tnfα, Nos2, Il1β, Il-6) and fibrosis (upregulated Col1a1, Acta2, Tgfβ, Timp1). Autofluorescence analyses revealed prominent vitamin A accumulation in hepatocytes rather than HSC in HFC-fed mice. Palmitic acid exposure increased Lrat mRNA levels in primary rat hepatocytes and promoted retinyl palmitate accumulation when co-treated with retinol, which was not detected for similarly-treated primary rat HSCs. CONCLUSION NAFLD leads to cell type-specific rearrangements in retinol metabolism leading to vitamin A accumulation in hepatocytes. This may promote disease progression and/or affect therapeutic approaches targeting nuclear receptors.
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Affiliation(s)
- Ali Saeed
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands; Institute of Molecular Biology and Biotechnology, Bahauddin Zakariya University, Multan, Pakistan.
| | - Paulina Bartuzi
- Section of Molecular Genetics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Janette Heegsma
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands; Laboratory Medicine, Department of Pediatrics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Daphne Dekker
- Section of Molecular Genetics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Niels Kloosterhuis
- Section of Molecular Genetics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Alain de Bruin
- Section of Molecular Genetics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands; Dutch Molecular Pathology Center, Department of Pathobiology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
| | - Johan W Jonker
- Section of Molecular Metabolism and Nutrition, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Bart van de Sluis
- Section of Molecular Genetics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Klaas Nico Faber
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands; Laboratory Medicine, Department of Pediatrics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands.
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Nishimoto K, Toya Y, Davis CR, Tanumihardjo SA, Welham NV. Dynamics of vitamin A uptake, storage, and utilization in vocal fold mucosa. Mol Metab 2020; 40:101025. [PMID: 32473404 PMCID: PMC7322172 DOI: 10.1016/j.molmet.2020.101025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 05/11/2020] [Accepted: 05/23/2020] [Indexed: 12/20/2022] Open
Abstract
Objective Extrahepatic vitamin A is housed within organ-specific stellate cells that support local tissue function. These cells have been reported in the vocal fold mucosa (VFM) of the larynx; however, it is unknown how vitamin A reaches and is disseminated among VFM target cells, how VFM storage and utilization vary as a function of total body stores, and how these parameters change in the context of pathology. Therefore, in this study, we investigated fundamental VFM vitamin A uptake and metabolism. Methods Using cadaveric tissue and serum from human donors representing the full continuum of clinical vitamin A status, we established a concentration range and analyzed the impact of biologic and clinical covariates on VFM vitamin A. We additionally conducted immunodetection of vitamin A-associated markers and pharmacokinetic profiling of orally dosed α-retinyl ester (a chylomicron tracer) in rats. Results Serum vitamin A was a significant predictor of human VFM concentrations, suggesting that VFM stores may be rapidly metabolized in situ and replenished from the circulatory pool. On a vitamin A-sufficient background, dosed α-vitamin A was detected in rat VFM in both ester and alcohol forms, showing that, in addition to plasma retinol and local stellate cell stores, VFM can access and process postprandial retinyl esters from circulating chylomicra. Both α forms were rapidly depleted, confirming the high metabolic demand for vitamin A within VFM. Conclusion This thorough physiological analysis validates VFM as an extrahepatic vitamin A repository and characterizes its unique uptake, storage, and utilization phenotype. Vocal fold mucosa (VFM) is a bone fide extrahepatic vitamin A repository in the larynx. VFM rapidly metabolizes vitamin A and can directly access postprandial retinyl esters from chylomicra. The VFM vitamin A uptake, storage, and utilization phenotype appears to be comparable in humans and rats.
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Affiliation(s)
- Kohei Nishimoto
- Division of Otolaryngology, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53792, USA
| | - Yutaka Toya
- Division of Otolaryngology, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53792, USA
| | - Christopher R Davis
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Sherry A Tanumihardjo
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Nathan V Welham
- Division of Otolaryngology, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53792, USA.
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Zhang Z, Guo M, Shen M, Li Y, Tan S, Shao J, Zhang F, Chen A, Wang S, Zheng S. Oroxylin A regulates the turnover of lipid droplet via downregulating adipose triglyceride lipase (ATGL) in hepatic stellate cells. Life Sci 2019; 238:116934. [PMID: 31610205 DOI: 10.1016/j.lfs.2019.116934] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 09/26/2019] [Accepted: 10/03/2019] [Indexed: 02/07/2023]
Abstract
Proliferation and differentiation of hepatic stellate cells (HSCs) are the most noticeable events in hepatic fibrosis, in which the loss of lipid droplets (LDs) is the most important feature. However, the complex mechanisms of LD disappearance have not been fully elucidated. In the current study, we investigated whether oroxylin A has the pharmacological activity of reversing LDs in activated HSCs, and further examined its potential molecular mechanisms. Using genetic, pharmacological, and molecular biological measure, we found that LD content significantly decreased during HSC activation, whereas oroxylin A markedly reversed LD content in activated HSCs. Interestingly, oroxylin A treatment observably decreased the expression of adipose triglyceride lipase (ATGL) without large differences in classical LD synthesis pathway, LD-related transcription factors, and autophagy pathway. ATGL overexpression could completely impair the effect of oroxylin A on reversing LD content. Importantly, reactive oxygen species (ROS) signaling pathway mediated oroxylin A-induced ATGL downregulation and LD revision in activated HSCs. ROS specific stimulant buthionine sulfoximine (BSO) could dramatically diminish the antioxidant effect of oroxylin A, and in turn, abolish reversal effect of oroxylin A on LD content. Conversely, ROS specific scavenger N-acetyl cystenine (NAC) can significantly enhance the pharmacological effect of oroxylin A on LD revision. Taken together, our study reveals the important molecular mechanism of anti-fibrosis effect of oroxylin A, and also suggests that ROS-ATGL pathway is a potential target for reversing LDs.
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Affiliation(s)
- Zili Zhang
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Mei Guo
- Department of Pathogenic biology and Immunology, Medical School, Southeast University, Nanjing, 210009, China
| | - Min Shen
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Yujia Li
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Shanzhong Tan
- Nanjing Hospital Affiliated to Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Jiangjuan Shao
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
| | - Feng Zhang
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Anping Chen
- Department of Pathology, School of Medicine, Saint Louis University, St Louis, MO, 63104, USA
| | - Shijun Wang
- Shandong co-innovation center of TCM formula, College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, China
| | - Shizhong Zheng
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
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