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Li H, Hu P, Zou Y, Yuan L, Xu Y, Zhang X, Luo X, Zhang Z. Tanshinone IIA and hepatocellular carcinoma: A potential therapeutic drug. Front Oncol 2023; 13:1071415. [PMID: 36798821 PMCID: PMC9928209 DOI: 10.3389/fonc.2023.1071415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 01/04/2023] [Indexed: 02/04/2023] Open
Abstract
Because of its high prevalence and poor long-term clinical treatment effect, liver disease is regarded as a major public health problem around the world. Among them, viral hepatitis, fatty liver, cirrhosis, non-alcoholic fatty liver disease (NAFLD), and autoimmune liver disease are common causes and inducements of liver injury, and play an important role in the occurrence and development of hepatocellular carcinoma (HCC). Tanshinone IIA (TsIIA) is a fat soluble polyphenol of Salvia miltiorrhiza that is extracted from Salvia miltiorrhiza. Because of its strong biological activity (anti-inflammatory, antioxidant), it is widely used in Asia to treat cardiovascular and liver diseases. In addition, TsIIA has shown significant anti-HCC activity in previous studies. It not only has significant anti proliferation and pro apoptotic properties. It can also play an anti-cancer role by mediating a variety of signal pathways, including phosphatidylinositol-3-kinase (PI3K)/protein kinase B (Akt)/rapamycin (mTOR), mitogen-activated protein kinase (MAPK), and nuclear factor kappa-B (NF-κB). This review not only reviews the existing evidence and molecular mechanism of TsIIA's anti-HCC effect but also reviews the liver-protective effect of TsIIA and its impact on liver fibrosis, NAFLD, and other risk factors for liver cancer. In addition, we also conducted network pharmacological analysis on TsIIA and HCC to further screen and explore the possible targets of TsIIA against hepatocellular carcinoma. It is expected to provide a theoretical basis for the development of anti-HCC-related drugs based on TsIIA.
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Affiliation(s)
- Hu Li
- Emergency Department, Affiliated Hospital of Binzhou Medical College, Binzhou, China
| | - Pengbo Hu
- Emergency Department, Affiliated Hospital of Binzhou Medical College, Binzhou, China,Institute of Medical Science of Binzhou Medical University, Yantai, China
| | - Yajun Zou
- Emergency Department, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Lijuan Yuan
- Emergency Department, Affiliated Hospital of Binzhou Medical College, Binzhou, China
| | - Yucheng Xu
- Emergency Department, Affiliated Hospital of Binzhou Medical College, Binzhou, China
| | - Xiaohui Zhang
- Emergency Department, Affiliated Hospital of Binzhou Medical College, Binzhou, China
| | - Xiaoyan Luo
- Emergency Department, Affiliated Hospital of Binzhou Medical College, Binzhou, China
| | - Zhiqiang Zhang
- Emergency Department, Affiliated Hospital of Binzhou Medical College, Binzhou, China,Institute of Medical Science of Binzhou Medical University, Yantai, China,*Correspondence: Zhiqiang Zhang,
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Qian Y, Shang Z, Gao Y, Wu H, Kong X. Liver Regeneration in Chronic Liver Injuries: Basic and Clinical Applications Focusing on Macrophages and Natural Killer Cells. Cell Mol Gastroenterol Hepatol 2022; 14:971-981. [PMID: 35738473 PMCID: PMC9489753 DOI: 10.1016/j.jcmgh.2022.05.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 04/28/2022] [Accepted: 07/27/2022] [Indexed: 01/31/2023]
Abstract
BACKGROUND & AIMS Liver regeneration is a necessary but complex process involving multiple cell types besides hepatocytes. Mechanisms underlying liver regeneration after partial hepatectomy and acute liver injury have been well-described. However, in patients with chronic and severe liver injury, the remnant liver cannot completely restore the liver mass and function, thereby involving liver progenitor-like cells (LPLCs) and various immune cells. RESULTS Macrophages are beneficial to LPLCs proliferation and the differentiation of LPLCs to hepatocytes. Also, cells expressing natural killer (NK) cell markers have been studied in promoting both liver injury and liver regeneration. NK cells can promote LPLC-induced liver regeneration, but the excessive activation of hepatic NK cells may lead to high serum levels of interferon-γ, thus inhibiting liver regeneration. CONCLUSIONS This review summarizes the recent research on 2 important innate immune cells, macrophages and NK cells, in LPLC-induced liver regeneration and the mechanisms of liver regeneration during chronic liver injury, as well as the latest macrophage- and NK cell-based therapies for chronic liver injury. These novel findings can further help identify new treatments for chronic liver injury, saving patients from the pain of liver transplantations.
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Affiliation(s)
- Yihan Qian
- Central Laboratory, Department of Liver Diseases, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zhi Shang
- Central Laboratory, Department of Liver Diseases, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yueqiu Gao
- Central Laboratory, Department of Liver Diseases, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hailong Wu
- Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine and Health Sciences, Shanghai, China.
| | - Xiaoni Kong
- Central Laboratory, Department of Liver Diseases, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China.
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Elchaninov A, Vishnyakova P, Sukhikh G, Fatkhudinov T. Spleen: Reparative Regeneration and Influence on Liver. Life (Basel) 2022; 12:life12050626. [PMID: 35629294 PMCID: PMC9148119 DOI: 10.3390/life12050626] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 04/14/2022] [Accepted: 04/21/2022] [Indexed: 02/06/2023] Open
Abstract
This review considers experimental findings on splenic repair, obtained in two types of small animal (mouse, rat, and rabbit) models: splenic resections and autologous transplantations of splenic tissue. Resection experiments indicate that the spleen is able to regenerate, though not necessarily to the initial volume. The recovery lasts one month and preserves the architecture, albeit with an increase in the relative volume of lymphoid follicles. The renovated tissues, however, exhibit skewed functional profiles; notably, the decreased production of antibodies and the low cytotoxic activity of T cells, consistent with the decline of T-dependent zones and prolonged reduction in T cell numbers. Species-specific differences are evident as well, with the post-repair organ mass deficiency most pronounced in rabbit models. Autotransplantations of splenic material are of particular clinical interest, as the procedure can possibly mitigate the development of post-splenectomy syndrome. Under these conditions, regeneration lasts 1-2 months, depending on the species. The transplants effectively destroy senescent erythrocytes, assist in microbial clearance, and produce antibodies, thus averting sepsis and bacterial pneumonia. Meanwhile, cellular sources of splenic recovery in such models remain obscure, as well as the time required for T and B cell number reconstitution.
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Affiliation(s)
- Andrey Elchaninov
- Laboratory of Regenerative Medicine, National Medical Research Center for Obstetrics, Gynecology and Perinatology Named after Academician V.I. Kulakov of Ministry of Healthcare of Russian Federation, 117997 Moscow, Russia; (P.V.); (G.S.)
- Histology Department, Medical Institute, Peoples’ Friendship University of Russia, 117198 Moscow, Russia;
- Correspondence:
| | - Polina Vishnyakova
- Laboratory of Regenerative Medicine, National Medical Research Center for Obstetrics, Gynecology and Perinatology Named after Academician V.I. Kulakov of Ministry of Healthcare of Russian Federation, 117997 Moscow, Russia; (P.V.); (G.S.)
- Histology Department, Medical Institute, Peoples’ Friendship University of Russia, 117198 Moscow, Russia;
| | - Gennady Sukhikh
- Laboratory of Regenerative Medicine, National Medical Research Center for Obstetrics, Gynecology and Perinatology Named after Academician V.I. Kulakov of Ministry of Healthcare of Russian Federation, 117997 Moscow, Russia; (P.V.); (G.S.)
| | - Timur Fatkhudinov
- Histology Department, Medical Institute, Peoples’ Friendship University of Russia, 117198 Moscow, Russia;
- Laboratory of Growth and Development, Scientific Research Institute of Human Morphology, 117418 Moscow, Russia
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Ben Ya'acov A, Meir H, Zolotaryova L, Ilan Y, Shteyer E. Impaired liver regeneration is associated with reduced cyclin B1 in natural killer T cell-deficient mice. BMC Gastroenterol 2017; 17:44. [PMID: 28330461 PMCID: PMC5363052 DOI: 10.1186/s12876-017-0600-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 03/10/2017] [Indexed: 12/20/2022] Open
Abstract
Background It has been shown that the proportion of natural killer T cells is markedly elevated during liver regeneration and their activation under different conditions can modulate this process. As natural killer T cells and liver injury are central in liver regeneration, elucidating their role is important. Methods The aim of the current study is to explore the role of natural killer T cells in impaired liver regeneration. Concanvalin A was injected 4 days before partial hepatectomy to natural killer T cells- deficient mice or to anti CD1d1-treated mice. Ki-67 and proliferating cell nuclear antigen were used to measure hepatocytes proliferation. Expression of hepatic cyclin B1 and proliferating cell nuclear antigen were evaluated by Western Blot and liver injury was assessed by ALT and histology. Results Natural killer T cells- deficient or mice injected with anti CD1d antibodies exhibited reduced liver regeneration. These mice were considerably resistant to ConA-induced liver injury. In the absence of NKT cells hepatic proliferating cell nuclear antigen and cyclin B1 decreased in mice injected with Concanvalin A before partial hepatectomy. This was accompanied with reduced serum interleukin-6 levels. Conclusions Natural killer T cells play an important role in liver regeneration, which is associated with cyclin B1 and interleukin-6.
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Affiliation(s)
- Ami Ben Ya'acov
- Liver Unit, Hebrew University-Hadassah Medical Center, Jerusalem, Israel.
| | - Hadar Meir
- Liver Unit, Hebrew University-Hadassah Medical Center, Jerusalem, Israel
| | - Lydia Zolotaryova
- Liver Unit, Hebrew University-Hadassah Medical Center, Jerusalem, Israel
| | - Yaron Ilan
- Liver Unit, Hebrew University-Hadassah Medical Center, Jerusalem, Israel
| | - Eyal Shteyer
- Department of Pediatrics, Hebrew University-Hadassah Medical Center, Jerusalem, Israel
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Fahrner R, Dondorf F, Ardelt M, Settmacher U, Rauchfuss F. Role of NK, NKT cells and macrophages in liver transplantation. World J Gastroenterol 2016; 22:6135-6144. [PMID: 27468206 PMCID: PMC4945975 DOI: 10.3748/wjg.v22.i27.6135] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 05/25/2016] [Accepted: 06/15/2016] [Indexed: 02/07/2023] Open
Abstract
Liver transplantation has become the treatment of choice for acute or chronic liver disease. Because the liver acts as an innate immunity-dominant organ, there are immunological differences between the liver and other organs. The specific features of hepatic natural killer (NK), NKT and Kupffer cells and their role in the mechanism of liver transplant rejection, tolerance and hepatic ischemia-reperfusion injury are discussed in this review.
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Singh P, Goode T, Dean A, Awad SS, Darlington GJ. Elevated interferon gamma signaling contributes to impaired regeneration in the aged liver. J Gerontol A Biol Sci Med Sci 2011; 66:944-56. [PMID: 21719609 DOI: 10.1093/gerona/glr094] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Our previous study on immune-related changes in the aged liver described immune cell infiltration and elevation of inflammation with age. Levels of interferon (IFN)-γ, a known cell cycle inhibitor, were elevated in the aging liver. Here, we determine the role played by IFN-γ in the delayed regenerative response observed in the aged livers. We observed elevated IFN signaling in both aged hepatocytes and regenerating livers post-partial hepatectomy. In vivo deletion of the major IFN-γ producers-the macrophages and the natural killer cells, leads to a reduction in the IFN-γ levels accompanied with the restoration of the DNA synthesis kinetics in the aged livers. Eighteen-month-old IFN-γ-/- mice livers, upon resection, exhibited an earlier entry into the cell cycle compared with age-matched controls. Thus, our study strongly suggests that an age-related elevation in inflammatory conditions in the liver often dubbed as "inflammaging" has a detrimental effect on the regenerative response.
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Affiliation(s)
- Pallavi Singh
- Department of Dermatology, Columbia University Medical Center, 1150 St. Nicholas Avenue, New York, NY 10032, USA.
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Wei H, Wei H, Wang H, Tian Z, Sun R. Activation of natural killer cells inhibits liver regeneration in toxin-induced liver injury model in mice via a tumor necrosis factor-alpha-dependent mechanism. Am J Physiol Gastrointest Liver Physiol 2010; 299:G275-82. [PMID: 20448144 DOI: 10.1152/ajpgi.00026.2010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Liver lymphocytes are enriched in natural killer (NK) cells, and activation of NK cells by injection of polyinosinic-polycytidylic acid (poly I:C) inhibits liver regeneration in the partial hepatectomy model via production of IFN-gamma. However, the role of NK cells in liver regeneration in a model of carbon tetrachloride (CCl(4))-induced liver injury remains unknown. In this study, we investigated the effect of activation of NK cells induced by poly I:C on liver regeneration in the CCl(4) model. Administration of poly I:C suppressed liver regeneration in CCl(4)-treated mice. Depletion of NK cells but not Kupffer cells or T cells restored liver regeneration in poly I:C/CCl(4)-treated mice. Poly I:C and CCl(4) cotreatment synergistically induced accumulation of NK cells in the liver and NK cell production of IFN-gamma and tumor necrosis factor (TNF)-alpha. Serum levels of these two cytokines were also synergistically induced after poly I:C and CCl(4) treatment. Finally, blockage of TNF-alpha but not IFN-gamma restored liver regeneration in poly I:C/CCl(4)-treated mice. Taken together, these findings suggest that poly I:C treatment inhibits liver regeneration in the CCl(4)-induced liver injury model via induction of NK cell production of TNF-alpha.
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Affiliation(s)
- Hairong Wei
- Institute of Immunology, Hefei National Laboratory for Physical Sciences at Microscale, School of Life Sciences, University of Science and Technology of China, 443 Huangshan Rd., Hefei City, Anhui 230027, People's Republic of China
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Qin XY, Li T, Yan L, Liu QS, Tian Y. Tanshinone IIA protects against immune-mediated liver injury through activation of t-cell subsets and regulation of cytokines. Immunopharmacol Immunotoxicol 2010. [DOI: 10.3109/08923970903120997] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Rudich N, Zamir G, Pappo O, Shlomai Z, Faroja M, Weiss ID, Wald H, Galun E, Peled A, Wald O. Focal liver necrosis appears early after partial hepatectomy and is dependent on T cells and antigen delivery from the gut. Liver Int 2009; 29:1273-84. [PMID: 19538448 DOI: 10.1111/j.1478-3231.2009.02048.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Progressive liver failure may develop following removal of a large part of the liver or transplantation of a small for size liver graft. The pathophysiology of this clinical syndrome is only partially understood. METHODS We assessed liver damage and hepatocyte 5-bromo-2'-deoxyuridine (BrdU) incorporation following partial hepatectomy (PH) in C57BL/6, BALB/C and immune-deficient mice. Hepatic lymphocyte subpopulations were characterized. Lipopolysaccharide (LPS) treatment and bowel decontamination determined the role of gut antigens. RESULTS Discrete, round necrotic lesions were observed as early as 2 h following 70%, but not 30% PH. In immune competent mice the extent of hepatocyte necrosis inversely correlated with BrdU incorporation. T, natural killer and natural killer T cells were recruited to the liver early after PH; however, only T-cell depletion abrogated hepatic necrosis. Hepatic injury was significantly reduced in non-obese diabetic/severe combined immunodeficient mice undergoing PH, while BrdU incorporation was not affected. Liver injury was augmented by LPS injection and reduced by gut decontamination. CONCLUSIONS A distinct pattern of early focal hepatic necrosis is observed following extensive PH in mice. T cells infiltrating the liver immediately after PH and gut-derived antigens are indispensable for the observed liver necrosis and may thus provide therapeutic targets to ameliorate liver damage following PH.
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Affiliation(s)
- Noam Rudich
- Laboratory for Surgical Research, Hadassah University Hospital, Jerusalem, Israel
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TUMANOV ALEXEIV, KOROLEVA EKATERINAP, CHRISTIANSEN PETERA, KHAN MEHTABA, RUDDY MATTHEWJ, BURNETTE BYRON, PAPA SALVATORE, FRANZOSO GUIDO, NEDOSPASOV SERGEIA, FU YANGXIN, ANDERS ROBERTA. T cell-derived lymphotoxin regulates liver regeneration. Gastroenterology 2009; 136:694-704.e4. [PMID: 18952083 PMCID: PMC3060763 DOI: 10.1053/j.gastro.2008.09.015] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2008] [Revised: 08/19/2008] [Accepted: 09/11/2008] [Indexed: 12/12/2022]
Abstract
BACKGROUND & AIMS The ability of the liver to regenerate hepatic mass is essential to withstanding liver injury. The process of liver regeneration is tightly regulated by distinct signaling cascades involving components of the innate immune system, cytokines, and growth factors. However, the role of the adaptive immune system in regulation of liver regeneration is not well-defined. The role of adaptive immune system in liver regeneration was investigated in lymphocyte-deficient mice and in conditional lymphotoxin-deficient mice. METHODS A model of liver regeneration after 70% partial hepatectomy was used, followed by examination of liver pathology, survival, DNA synthesis, and cytokine expression. RESULTS We found that mice deficient in T cells show a reduced capacity for liver regeneration following partial hepatectomy. Furthermore, surface lymphotoxin, provided by T cells, is critical for liver regeneration. Mice specifically deficient in T-cell lymphotoxin had increased liver damage and a reduced capacity to initiate DNA synthesis after partial hepatectomy. Transfer of splenocytes from wild-type but not lymphotoxin-deficient mice improved liver regeneration in T cell-deficient mice. We found that an agonistic antibody against the lymphotoxin beta receptor was able to facilitate liver regeneration by reducing liver injury, increasing interleukin-6 production, hepatocyte DNA synthesis, and survival of lymphocyte-deficient (Rag) mice after partial hepatectomy. CONCLUSIONS The adaptive immune system directly regulates liver regeneration via a T cell-derived lymphotoxin axis, and pharmacological stimulation of lymphotoxin beta receptor might represent a novel therapeutic approach to improve liver regeneration.
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Affiliation(s)
- ALEXEI V. TUMANOV
- The University of Chicago, Department of Pathology, Chicago, Illinois
| | | | | | - MEHTAB A. KHAN
- Johns Hopkins School of Medicine, Division of Gastroenterology and Liver Pathology, Baltimore, Maryland
| | - MATTHEW J. RUDDY
- The University of Chicago, Department of Pathology, Chicago, Illinois
| | - BYRON BURNETTE
- The University of Chicago, Department of Pathology, Chicago, Illinois
| | - SALVATORE PAPA
- The Ben May Department for Cancer Research, The University of Chicago, Chicago, Illinois
| | - GUIDO FRANZOSO
- The Ben May Department for Cancer Research, The University of Chicago, Chicago, Illinois
| | - SERGEI A. NEDOSPASOV
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia,Rheumatism Research Center, Berlin, Germany
| | - YANG-XIN FU
- The University of Chicago, Department of Pathology, Chicago, Illinois,Johns Hopkins School of Medicine, Division of Gastroenterology and Liver Pathology, Baltimore, Maryland
| | - ROBERT A. ANDERS
- The University of Chicago, Department of Pathology, Chicago, Illinois,Johns Hopkins School of Medicine, Division of Gastroenterology and Liver Pathology, Baltimore, Maryland
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Beldi G, Wu Y, Banz Y, Nowak M, Miller L, Enjyoji K, Haschemi A, Yegutkin GG, Candinas D, Exley M, Robson SC. Natural killer T cell dysfunction in CD39-null mice protects against concanavalin A-induced hepatitis. Hepatology 2008; 48:841-52. [PMID: 18752325 PMCID: PMC2929828 DOI: 10.1002/hep.22401] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
UNLABELLED Concanavalin A (Con A)-induced injury is an established natural killer T (NKT) cell-mediated model of inflammation that has been used in studies of immune liver disease. Extracellular nucleotides, such as adenosine triphosphate, are released by Con A-stimulated cells and bind to specific purinergic type 2 receptors to modulate immune activation responses. Levels of extracellular nucleotides are in turn closely regulated by ectonucleotidases, such as CD39/NTPDase1. Effects of extracellular nucleotides and CD39 on NKT cell activation and upon hepatic inflammation have been largely unexplored to date. Here, we show that NKT cells express both CD39 and CD73/ecto-5'-nucleotidase and can therefore generate adenosine from extracellular nucleotides, whereas natural killer cells do not express CD73. In vivo, mice null for CD39 are protected from Con A-induced liver injury and show substantively lower serum levels of interleukin-4 and interferon-gamma when compared with matched wild-type mice. Numbers of hepatic NKT cells are significantly decreased in CD39 null mice after Con A administration. Hepatic NKT cells express most P2X and P2Y receptors; exceptions include P2X3 and P2Y11. Heightened levels of apoptosis of CD39 null NKT cells in vivo and in vitro appear to be driven by unimpeded activation of the P2X7 receptor. CONCLUSION CD39 and CD73 are novel phenotypic markers of NKT cells. In turn, CD39 expression [corrected] modulates nucleotide-mediated cytokine production by, and limits apoptosis of, hepatic NKT cells. Deletion of CD39 is protective in [corrected] Con A-induced hepatitis. This study illustrates a [corrected] role for purinergic signaling in NKT-mediated mechanisms that result in liver immune injury.
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Affiliation(s)
- Guido Beldi
- Liver and Transplantation Centers, Department of Medicine, Harvard Medical School, Boston, MA,Department of Visceral and Transplant Surgery, Inselspital, University Hospital, Bern, Switzerland
| | - Yan Wu
- Liver and Transplantation Centers, Department of Medicine, Harvard Medical School, Boston, MA
| | - Yara Banz
- Liver and Transplantation Centers, Department of Medicine, Harvard Medical School, Boston, MA
| | - Michael Nowak
- Division of Hematology and Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
| | - Lindsay Miller
- Liver and Transplantation Centers, Department of Medicine, Harvard Medical School, Boston, MA
| | - Keiichi Enjyoji
- Liver and Transplantation Centers, Department of Medicine, Harvard Medical School, Boston, MA
| | - Arvand Haschemi
- Liver and Transplantation Centers, Department of Medicine, Harvard Medical School, Boston, MA
| | - Gennady G. Yegutkin
- MediCity Research Laboratory, University of Turku, National Public Health Institute, Turku, Finland
| | - Daniel Candinas
- Department of Visceral and Transplant Surgery, Inselspital, University Hospital, Bern, Switzerland
| | - Mark Exley
- Division of Hematology and Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
| | - Simon C. Robson
- Liver and Transplantation Centers, Department of Medicine, Harvard Medical School, Boston, MA
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Xu MQ, Yan LN, Gou XH, Li DH, Huang YC, Hu HY, Wang LY, Han L. Zinc finger protein A20 promotes regeneration of small-for-size liver allograft and suppresses rejection and results in a longer survival in recipient rats. J Surg Res 2008; 152:35-45. [PMID: 19027921 DOI: 10.1016/j.jss.2008.04.029] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2007] [Revised: 03/31/2008] [Accepted: 04/17/2008] [Indexed: 02/05/2023]
Abstract
BACKGROUND Small-for-size liver allografts without immunosuppression have decreased survival compared with full-for-size grafts for the concomitant regeneration-induced accelerated rejection. This study was designed to examine the effect of zinc finger protein A20 on liver allograft regeneration and acute rejection using a high responder rat model (DA-->Lewis) of 30% partial liver transplantation. MATERIALS AND METHODS Adenovirus carrying the full length of A20 was introduced into liver grafts by ex vivo perfusion via the portal vein during preservation, physiological saline (PS), and empty Ad vector rAdEasy served as controls; then small-sized liver transplants were performed. Liver graft regeneration was assessed, as well as graft rejection, hepatocyte apoptosis, nuclear factor kappa B activation, and intercellular adhesion molecule-1 mRNA expression in liver graft sinusoidal endothelial cells (LSECs), infiltration of liver graft infiltrating mononuclear cells (LIMCs), and the subproportion of NK and NKT cells, activity of liver graft NK-like cells, interferon gamma (IFN-gamma) production, and animal survival. RESULTS Ex vivo transfer of the A20 gene resulted in overexpression of A20 protein in LSECs and hepatocytes 24 h after partial liver transplantation. Regeneration of the small-sized liver allograft was augmented by A20 overexpression, the DNA synthesis of hepatocytes on d 4 post-transplant was increased in A20 group compared with PS and rAdEasy groups (P < 0.01). Hepatocyte apoptosis was inhibited by A20 (P < 0.001). On d 4 after transplantation, histological examination revealed a more exiguous cellular infiltration and mild rejection in A20 group but a more vigorous cellular infiltration in the sinusoidal area and more severe rejection in PS and rAdEasy group. Nuclear factor kappa B activation and intercellular adhesion molecule-1 mRNA expression in LSECs were suppressed by A20 overexpression. Flow cytometry analysis showed a marked down-regulation of LIMCs number by A20, including more prominent decrease in the subproportion of NK and NKT cells. Activity of liver graft NK-like cells, IFN-gamma mRNA expression in LIMCs, and serum IFN-gamma protein level were also suppressed by A20 overexpression (P < 0.05), respectively. Survival days of A20 rats were longer than those of PS rats and rAdEasy rats (P < 0.01), whereas survival days of rAdEasy rats were shorter than those of PS rats (P < 0.01). CONCLUSIONS These data suggest that A20 overexpression could effectively promote small-sized liver allograft regeneration, suppress rejection, and prolong survival of recipient rat. These effects of A20 could be related to an inhibition of LSECs activation, suppression of infiltration of LIMCs, and the subpopulations such as NK and NKT cells into liver graft, and inhibition of hepatocyte apoptosis.
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Affiliation(s)
- Ming-Qing Xu
- Liver Transplantation Division, Department of General Surgery, West China Hospital, Sichuan University, Chengdu, China
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Lin XM, Liu YB, Zhou F, Wu YL, Chen L, Fang HQ. Expression of tumor necrosis factor-alpha converting enzyme in liver regeneration after partial hepatectomy. World J Gastroenterol 2008; 14:1353-7. [PMID: 18322947 PMCID: PMC2693681 DOI: 10.3748/wjg.14.1353] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To study the expression of tumor necrosis factor-alpha converting enzyme (TACE) and evaluate its significance in liver regeneration after partial hepatectomy in vivo.
METHODS: Male SD rats underwent 70% partial hepatectomy. The remaining liver and spleen tissue samples were collected at indicated time points after hepatectomy. TACE expression was investigated by Western blotting, immunohistochemistry, and serial section immunostaining.
RESULTS: Expression of TACE in liver and spleen tissues after partial hepatectomy was a time-dependent alteration, reaching a maximal level between 24 and 48 h and remaining elevated for more than 168 h. TACE protein was localized to mononuclear cells (MNC), which infiltrated the liver from the spleen after hepatectomy. The kinetics of TACE expression was in accordance with the number of TACE-staining MNCs and synchronized with those of transforming growth factor-α (TGFα). In addition, TACE-staining MNC partially overlapped with CD3+ T lymphocytes.
CONCLUSION: TACE may be involved in liver regeneration by pathway mediated with TGFα-EGFR in the cell-cycle progressive phase in vivo. TACE production and effect by paracrine may be a pathway of involvement in liver regeneration for the activated CD3+ T lymphocytes.
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Botros SS, Mahmoud MR, Moussa MM, Nosseir MM. Immunohistopathological and biochemical changes in Schistosoma mansoni-infected mice treated with artemether. J Infect 2007; 55:470-7. [PMID: 17868901 DOI: 10.1016/j.jinf.2007.07.022] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2007] [Revised: 07/25/2007] [Accepted: 07/31/2007] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To investigate immune mechanisms possibly involved in the amelioration of histopathological changes in livers of Schistosoma mansoni-infected mice treated with artemether (ART), including liver functions and apoptotic changes. METHODS Male CD-1 Swiss albino mice were infected with Schistosoma mansoni and treated with praziquantel (PZQ) 6 weeks post-infection (PI) (500 mg/kg/day x2) and/or ART in double dose (each of 400 mg/kg) 4 and 6 weeks PI. Parasitological parameters, liver functions and histopathological changes including T-lymphocyte profile and apoptotic changes were assessed. RESULTS Eight weeks PI, although the reduction in worm burden in mice treated with ART plus PZQ was comparable to that in PZQ-treated mice, yet there was complete absence of eggs and typical granulomas. The ratio of T-helper/cytotoxic cells was in favor of T-helper in infected control and in mice treated with both drugs. This ratio was 0.9:1 and 0.7:1 in PZQ and ART-treated groups, respectively, with moderate apoptotic changes in the latter. All biochemical parameters expressing liver function were improved with all treatment regimens. CONCLUSIONS Administration of ART in addition to PZQ resulted in absence of eggs and typical granulomas with less apoptotic changes than in ART-treated mice. Improved liver functions with higher apoptosis in ART-treated mice may suggest enhanced necrotic cell death/regenerative changes.
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Affiliation(s)
- Sanaa S Botros
- Pharmacology Department, Theodor Bilharz Research Institute, P.O. Box 30, Imbaba, 12411 Giza, Egypt
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Abstract
UNLABELLED A fraction of HBV carriers have a risk to develop liver cancer. Because liver possesses a strong regeneration capability, surgical resection of cancerous liver or transplantation with healthy liver is an alternate choice for HBV-caused hepatocarcinoma therapy. How HBV infection affects the regeneration of hepatectomized or transplanted liver remains elusive. We report that partial hepatectomy (PHx)-induced liver regeneration was reduced in HBV transgenic (HBV-tg) mice, a model of human HBV infection. PHx markedly triggered natural killer T (NKT) cell accumulation in the hepatectomized livers of HBV-tg mice, simultaneously with enhanced interferon gamma (IFN-gamma) production and CD69 expression on hepatic NKT cells at the early stage of liver regeneration. The impairment of liver regeneration in HBV-tg mice was largely ameliorated by NKT cell depletion, but not by natural killer (NK) cell depletion. Blockage of CD1d-NKT cell interaction considerably alleviated NKT cell activation and their inhibitory effect on regenerating hepatocytes. Neutralization of IFN-gamma enhanced bromodeoxyuridine incorporation in HBV-tg mice after PHx, and IFN-gamma mainly induced hepatocyte cell cycle arrest. Adoptive transfer of NKT cells from regenerating HBV-tg liver, but not from normal mice, could inhibit liver regeneration in recipient mice. CONCLUSION Activated NKT cells negatively regulate liver regeneration of HBV-tg mice in the PHx model.
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Affiliation(s)
- Zhongjun Dong
- Institute of Immunology, Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, University of Science and Technology of China, 443 Huangshan Road, Hefei, Anhui 230027, China
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