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Zeng X, Liu MH, Xiong Y, Zheng LX, Guo KE, Zhao HM, Yin YT, Liu DY, Zhou BG. Pien Tze Huang alleviates Concanavalin A-induced autoimmune hepatitis by regulating intestinal microbiota and memory regulatory T cells. World J Gastroenterol 2023; 29:5988-6016. [PMID: 38130997 PMCID: PMC10731150 DOI: 10.3748/wjg.v29.i45.5988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 09/26/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
BACKGROUND Traditional Chinese medicine has used the drug Pien Tze Huang (PTH), a classic prescription, to treat autoimmune hepatitis (AIH). However, the precise mode of action is still unknown. AIM To investigate the mechanism of PTH in an AIH mouse model by determining the changes in gut microbiota structure and memory regulatory T (mTreg) cells functional levels. METHODS Following induction of the AIH mouse model induced by Concanavalin A (Con A), prophylactic administration of PTH was given for 10 d. The levels of mTreg cells were measured by flow cytometry, and intestinal microbiota was analyzed by 16S rRNA analysis, while western blotting was used to identify activation of the toll-like receptor (TLR)2, TLR4/nuclear factor-κB (NF-κB), and CXCL16/CXCR6 signaling pathways. RESULTS In the liver of mice with AIH, PTH relieved the pathological damage and reduced the numbers of T helper type 17 cells and interferon-γ, tumor necrosis factor-alpha, interleukin (IL)-1β, IL-2, IL-6, and IL-21 expression. Simultaneously, PTH stimulated the abundance of helpful bacteria, promoted activation of the TLR2 signal, which may enhance Treg/mTreg cells quantity to produce IL-10, and suppressed activation of the TLR4/NF-κB and CXCL16/CXCR6 signaling pathways. CONCLUSION PTH regulates intestinal microbiota balance and restores mTreg cells to alleviate experimental AIH, which is closely related to the TLR/CXCL16/CXCR6/NF-κB signaling pathway.
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Affiliation(s)
- Xin Zeng
- Department of Postgraduate, Jiangxi University of Chinese Medicine, Nanchang 330004, Jiangxi Province, China
| | - Miao-Hua Liu
- Department of Postgraduate, Jiangxi University of Chinese Medicine, Nanchang 330004, Jiangxi Province, China
| | - Yi Xiong
- Department of Postgraduate, Jiangxi University of Chinese Medicine, Nanchang 330004, Jiangxi Province, China
| | - Lin-Xin Zheng
- Department of Postgraduate, Jiangxi University of Chinese Medicine, Nanchang 330004, Jiangxi Province, China
| | - Kai-En Guo
- Department of Postgraduate, Jiangxi University of Chinese Medicine, Nanchang 330004, Jiangxi Province, China
| | - Hai-Mei Zhao
- College of Traditional Chinese Medicine, Jiangxi University of Chinese Medicine, Nanchang 330004, Jiangxi Province, China
| | - Yu-Ting Yin
- College of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang 330004, Jiangxi Province, China
| | - Duan-Yong Liu
- Formula-Pattern Research Center, Jiangxi University of Chinese Medicine, Nanchang 330004, Jiangxi Province, China
| | - Bu-Gao Zhou
- Office of Academic Research, Jiangxi University of Chinese Medicine, Nanchang 330004, Jiangxi Province, China
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Yang Y, He X, Rojas M, Leung PSC, Gao L. Mechanism-based target therapy in primary biliary cholangitis: opportunities before liver cirrhosis? Front Immunol 2023; 14:1184252. [PMID: 37325634 PMCID: PMC10266968 DOI: 10.3389/fimmu.2023.1184252] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 05/16/2023] [Indexed: 06/17/2023] Open
Abstract
Primary biliary cholangitis (PBC) is an immune-mediated liver disease characterized by cholestasis, biliary injuries, liver fibrosis, and chronic non-suppurative cholangitis. The pathogenesis of PBC is multifactorial and involves immune dysregulation, abnormal bile metabolism, and progressive fibrosis, ultimately leading to cirrhosis and liver failure. Ursodeoxycholic acid (UDCA) and obeticholic acid (OCA) are currently used as first- and second-line treatments, respectively. However, many patients do not respond adequately to UDCA, and the long-term effects of these drugs are limited. Recent research has advanced our understanding the mechanisms of pathogenesis in PBC and greatly facilitated development of novel drugs to target mechanistic checkpoints. Animal studies and clinical trials of pipeline drugs have yielded promising results in slowing disease progression. Targeting immune mediated pathogenesis and anti-inflammatory therapies are focused on the early stage, while anti-cholestatic and anti-fibrotic therapies are emphasized in the late stage of disease, which is characterized by fibrosis and cirrhosis development. Nonetheless, it is worth noting that currently, there exists a dearth of therapeutic options that can effectively impede the progression of the disease to its terminal stages. Hence, there is an urgent need for further research aimed at investigating the underlying pathophysiology mechanisms with potential therapeutic effects. This review highlights our current knowledge of the underlying immunological and cellular mechanisms of pathogenesis in PBC. Further, we also address current mechanism-based target therapies for PBC and potential therapeutic strategies to improve the efficacy of existing treatments.
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Affiliation(s)
- Yushu Yang
- Department of Rheumatology and Immunology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - XiaoSong He
- Division of Rheumatology, Allergy, and Clinical Immunology, University of California, Davis, Davis, CA, United States
| | - Manuel Rojas
- Division of Rheumatology, Allergy, and Clinical Immunology, University of California, Davis, Davis, CA, United States
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Patrick S. C. Leung
- Division of Rheumatology, Allergy, and Clinical Immunology, University of California, Davis, Davis, CA, United States
| | - Lixia Gao
- Department of Rheumatology and Immunology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
- Division of Rheumatology, Allergy, and Clinical Immunology, University of California, Davis, Davis, CA, United States
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3
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Chen J, Jin H, Zhou H, Hei X, Liu K. Research into the characteristic molecules significantly affecting liver cancer immunotherapy. Front Immunol 2023; 14:1029427. [PMID: 36860864 PMCID: PMC9968832 DOI: 10.3389/fimmu.2023.1029427] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 02/01/2023] [Indexed: 02/15/2023] Open
Abstract
Background The past decade has witnessed unprecedented scientific breakthroughs, including immunotherapy, which has great potential in clinical applications for liver cancer. Methods Public data were obtained from The Cancer Genome Atlas (TCGA) and International Cancer Genome Consortium (ICGC) databases and analyzed with R software. Results The LASSO and SVM-RFE machine learning algorithms identified 16 differentially expressed genes (DEGs) related to immunotherapy, namely, GNG8, MYH1, CHRNA3, DPEP1, PRSS35, CKMT1B, CNKSR1, C14orf180, POU3F1, SAG, POU2AF1, IGFBPL1, CDCA7, ZNF492, ZDHHC22, and SFRP2. Moreover, a logistic model (CombinedScore) was established based on these DEGs, showing an excellent prediction performance for liver cancer immunotherapy. Patients with a low CombinedScore might respond better to immunotherapy. Gene Set Enrichment Analysis showed that many metabolism pathways were activated in patients with a high CombinedScore, including butanoate metabolism, bile acid metabolism, fatty acid metabolism, glycine serine and threonine metabolism, and propanoate metabolism. Our comprehensive analysis showed that the CombinedScore was negatively correlated with the levels of most tumor-infiltrating immune cells and the activities of key steps of cancer immunity cycles. Continually, the CombinedScore was negatively associated with the expression of most immune checkpoints and immunotherapy response-related pathways. Moreover, patients with a high and a low CombinedScore exhibited diverse genomic features. Furthermore, we found that CDCA7 was significantly correlated with patient survival. Further analysis showed that CDCA7 was positively associated with M0 macrophages and negatively associated with M2 macrophages, suggesting that CDCA7 could influence the progression of liver cancer cells by affecting macrophage polarization. Next, single-cell analysis showed that CDCA7 was mainly expressed in prolif T cells. Immunohistochemical results confirmed that the staining intensity of CDCA7 was prominently increased in the nucleus in primary liver cancer tissues compared to adjacent non-tumor tissues. Conclusions Our results provide novel insights into the DEGs and factors affecting liver cancer immunotherapy. Meanwhile, CDCA7 was identified as a potential therapeutic target in this patient population.
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Affiliation(s)
- Junhong Chen
- Department of Hepatobiliary and Pancreatic Surgery II, General Surgery Center, The First Hospital of Jilin University, Changchun, China
| | - Hengwei Jin
- Department of Hepatobiliary and Pancreatic Surgery II, General Surgery Center, The First Hospital of Jilin University, Changchun, China
| | - Hao Zhou
- Department of Hepatobiliary and Pancreatic Surgery II, General Surgery Center, The First Hospital of Jilin University, Changchun, China
| | - Xufei Hei
- Department of Hepatobiliary and Pancreatic Surgery II, General Surgery Center, The First Hospital of Jilin University, Changchun, China
| | - Kai Liu
- Department of Hepatobiliary and Pancreatic Surgery II, General Surgery Center, The First Hospital of Jilin University, Changchun, China
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4
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Zhang S, Tao X, Wang L, Chen H, Zhao L, Sun J, Bian S, Chen Z, Shao T, Yang Y, Li Y, Zhang F. Downregulation of Programmed Death-1 Pathway Promoting CD8 + T Cell Cytotoxicity in Primary Biliary Cholangitis. Dig Dis Sci 2022; 67:2981-2993. [PMID: 34392493 DOI: 10.1007/s10620-021-07165-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 07/07/2021] [Indexed: 01/21/2023]
Abstract
BACKGROUND Primary biliary cholangitis (PBC) is an autoimmune disease. CD8 + T cell (CTLs) cytotoxicity played a crucial rule in of PBC with unclear detailed pathogenesis. AIMS The role of the programmed death-1 (PD-1) pathway in CD8 + T cell cytotoxicity in patients with PBC was determined. METHODS We recruited 69 patients with PBC and 57 healthy controls (HCs). PD-1 pathway in peripheral CD8 + T cells and related cytokines were detected, and gene expression levels were detected. Immunofluorescence staining of PD-1/PD-L1 was performed on liver tissue. PD-1 ± CTLs were cocultured with human intrahepatic biliary epithelial cells (HiBECs) to measure CTL cytotoxicity, proliferation and cytokine levels and HiBEC apoptosis. The upstream signaling pathway of PD-1 was detected. RESULTS PBC patients exhibited Tbet gene upregulation and PD-1 downregulation in CTLs, with PD-1 expression reduced in CTLs and PD-L1 reduced in the liver portal region relative to HCs. Higher plasma IL-10, interferon-γ and transforming growth factor-β concentrations were observed in the PBC group than the HC group. In CTL and HiBEC coculture experiment, compared with PD-1- CTLs, PD-1 + CTLs exhibited weaker cytotoxicity, less proliferation and lower cytokine production. When the system was blocked by anti-PD-1 antibodies, these effects were antagonized. CONCLUSIONS PD-1 expression in CD8 + T cells decreased, and PD-1 pathway-related cytokines changed in patients with PBC. PD-1/PD-L1 pathway silencing increased CD8 + T cell proliferation, related cytokine production and CTL cytotoxic effects on HiBECs in coculture experiment. The PD-1/PD-L1 pathway might represent an important pathway in the immunological mechanism underlying PBC.
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Affiliation(s)
- Shuo Zhang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Xixi Tao
- Department of Ultrasound, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Li Wang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Hua Chen
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Liling Zhao
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Jinlei Sun
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Sainan Bian
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Zhilei Chen
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Tihong Shao
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Yunjiao Yang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Yongzhe Li
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Fengchun Zhang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100730, China.
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Wang J, Zheng X, Jiang Y, Jia H, Shi X, Han Y, Li Q, Li W. Soluble Programmed Cell Death Protein 1 and Its Ligand: Potential Biomarkers to Predict Acute Kidney Injury After Surgery in Critically Ill Patients. J Inflamm Res 2022; 15:1995-2008. [PMID: 35356070 PMCID: PMC8959723 DOI: 10.2147/jir.s356475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 03/11/2022] [Indexed: 11/23/2022] Open
Abstract
Purpose Programmed cell death protein 1 (PD-1) and programmed death-ligand 1 (PD-L1) have been detected in injury kidney. However, their expressions are unclear in mice kidneys under renal ischemia-reperfusion injury (IRI). In this study, we would observe the expressions of PD-1 and PD-L1 in kidney tissues and analyze the association between the concentrations of PD-1 and PD-L1 in mouse kidney homogenate and the corresponding concentrations of soluble PD-1 (sPD-1) and soluble PD-L1 (sPD-L1) in plasma after renal IRI. Further, we explored the predictive value of sPD-1 and sPD-L1 for acute kidney injury (AKI) in high-risk patients after surgery. Methods This study established an AKI model induced by IRI in mice. Plasma, kidney samples, and homogenate were collected 0h, 24h, and 48h after surgery for immunohistochemistry and enzyme-linked immunosorbent assay. Then, we continuously enrolled 88 AKI high-risk patients who underwent noncardiac surgery. The biomarkers, including sPD-1, sPD-L1, and urine neutrophil gelatinase-associated lipocalin (NGAL), tissue inhibitor of metalloproteinase-2 (TIMP-2), insulin-like growth factor-binding protein 7 (IGFBP7), were detected immediately after surgery. Results Our data revealed the concentrations of PD-1 and PD-L1 in kidney homogenate, and sPD-1 and sPD-L1 in plasma significantly increased at 0h, 24h, and 48h after IRI. A positive association was found between PD-1 and sPD-1 (r = 0.774, p < 0.001), and between PD-L1 and sPD-L1 (r = 0.881, p < 0.001). Compared to NGAL, [TIMP-2]*[IGFBP7], sPD-1 and sPD-L1 showed better predictive abilities for AKI with an area under the ROC curve of 0.856 (95% confidence interval [CI]: 0.825-0.958, p < 0.001) and 0.906 (95% CI: 0.764-0.921, p < 0.001). Conclusion The increased expressions of PD-1 and PD-L1 in kidneys under IRI suggested they may play essential roles in AKI development. sPD-1 and sPD-L1 can indirectly reflect the expressions of PD-1 and PD-L1 in kidneys, respectively. sPD-1 and sPD-L1 showed excellent predictive ability for AKI in high-risk patients.
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Affiliation(s)
- Jingyi Wang
- Surgical Intensive Care Unit, Beijing Chaoyang Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Xi Zheng
- Surgical Intensive Care Unit, Beijing Chaoyang Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Yijia Jiang
- Surgical Intensive Care Unit, Beijing Chaoyang Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Huimiao Jia
- Surgical Intensive Care Unit, Beijing Chaoyang Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Xiaocui Shi
- Surgical Intensive Care Unit, Beijing Chaoyang Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Yue Han
- Surgical Intensive Care Unit, Beijing Chaoyang Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Qingping Li
- Surgical Intensive Care Unit, Beijing Chaoyang Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Wenxiong Li
- Surgical Intensive Care Unit, Beijing Chaoyang Hospital, Capital Medical University, Beijing, People's Republic of China
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Saber MM. Diagnostic Performance of PD-L1 versus PD-1 Expression in Circulating CD20 Cells in Diffuse Large B-Cell Lymphoma. Antibodies (Basel) 2022; 11:antib11010015. [PMID: 35225873 PMCID: PMC8884023 DOI: 10.3390/antib11010015] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 02/08/2022] [Accepted: 02/10/2022] [Indexed: 11/16/2022] Open
Abstract
This study aimed to investigate PD-L1 and PD-1 expression in circulating CD20+ cells in diffuse larger B-cell lymphoma (DLBCL) and to evaluate the predictive and diagnostic performance of PD-L1 versus PD-1 expression in circulating CD20+ cells in DLBCL. Percentages of CD20+, PD-L1+CD20+, and PD-1+CD20+ cells were measured by flow cytometry in 40 DLBCL blood samples and 19 healthy controls. The DLBCL patient group was subdivided into 20 newly diagnosed patients with no treatment yet and 20 patients that had finished six cycles of CHOP therapy. Percentages of PD-L1+CD20+ and PD-1+CD20+ cells were highly significantly increased in pre-therapy patients in comparison to healthy volunteers (p < 0.001). Meanwhile, a significant decrease in percentages of PD-L1+CD20+ and PD-1+CD20+ was observed in post-CHOP therapy patients in comparison to pre-therapy patients (p < 0.001). PD-L1+CD20+ cells were significantly decreased in post-therapy patients when compared to normal controls (p < 0.001), while not for PD-1+CD20+ cells. A strong significant positive correlation between percentages of PD-L1+CD20+ and PD-1+CD20+ was detected in DLBCL patients (p < 0.001). In the pre-therapy group, high PD-L1+CD20+ and PD-1+CD20+ percentages were correlated with serum LDH levels (p = 0.021, p < 0.001). High percentages of PD-1+CD20+ were found in DLBCL patients with splenomegaly (p = 0.027). The results revealed that patients with advanced tumor stages, poor ECOG performance, and non-GCB DLBCL type had increased percentages of PD-L1+CD20+ and PD-1+CD20+ cells. Moreover, PD-L1+CD20+ % and PD-1+CD20+ % were significantly increased in DLBCL patients with bone marrow involvement or B symptoms. The superiority of PD-L1+CD20+ over PD-1+CD20+ was more profound in DLBCL prediction [AUC: 1.0] and in discriminating newly diagnosed patients [AUC: 1.0]. The findings suggest that increased PD-L1/PD-1 expression in peripheral CD20 cells may serve as a companion diagnostic marker for DLBCL. Moreover, percentages of PD-L1+CD20+ cells have better diagnostic performance with higher sensitivity and specificity than PD-1+CD20+ %.
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Affiliation(s)
- Manal Mohamed Saber
- Clinical Pathology Department, Faculty of Medicine, Minia University, Minia 61519, Egypt
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7
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Singh V, Khurana A, Allawadhi P, Banothu AK, Bharani KK, Weiskirchen R. Emerging Role of PD-1/PD-L1 Inhibitors in Chronic Liver Diseases. Front Pharmacol 2021; 12:790963. [PMID: 35002724 PMCID: PMC8733625 DOI: 10.3389/fphar.2021.790963] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 12/07/2021] [Indexed: 12/21/2022] Open
Abstract
Programmed cell death protein 1 (PD-1)/PD-ligand (L)1, the immune checkpoint inhibitors have emerged as a promising strategy for the treatment of various diseases including chronic liver diseases (CLDs) such as hepatitis, liver injury and hepatocellular carcinoma (HCC). The role of PD-1/PD-L1 has been widely inspected in the treatment of viral hepatitis and HCC. PD-1 is known to play a crucial role in inhibiting immunological responses and stimulates self-tolerance by regulating the T-cell activity. Further, it promotes apoptosis of antigen-specific T-cells while preventing apoptosis of Treg cells. PD-L1 is a trans-membrane protein which is recognized as a co-inhibitory factor of immunological responses. Both, PD-1 and PD-L1 function together to downregulate the proliferation of PD-1 positive cells, suppress the expression of cytokines and stimulate apoptosis. Owing to the importance of PD-1/PD-L1 signaling, this review aims to summarize the potential of PD-1/PD-L1 inhibitors in CLDs along with toxicities associated with them. We have enlisted some of the important roles of PD-1/PD-L1 in CLDs, the clinically approved products and the pipelines of drugs under clinical evaluation.
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Affiliation(s)
- Vishakha Singh
- Department of Biosciences and Bioengineering, Indian Institute of Technology (IIT) Roorkee, Roorkee, India
| | - Amit Khurana
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry (IFMPEGKC), RWTH Aachen University Hospital,Aachen, Germany
- Centre for Biomedical Engineering (CBME), Indian Institute of Technology (IIT) Delhi, New Delhi, India
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science (CVSc), Hyderabad, India
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science (CVSc), Warangal, India
| | - Prince Allawadhi
- Department of Biosciences and Bioengineering, Indian Institute of Technology (IIT) Roorkee, Roorkee, India
| | - Anil Kumar Banothu
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science (CVSc), Hyderabad, India
| | - Kala Kumar Bharani
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science (CVSc), Warangal, India
| | - Ralf Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry (IFMPEGKC), RWTH Aachen University Hospital,Aachen, Germany
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8
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Mi Y, Han J, Zhu J, Jin T. Role of the PD-1/PD-L1 Signaling in Multiple Sclerosis and Experimental Autoimmune Encephalomyelitis: Recent Insights and Future Directions. Mol Neurobiol 2021; 58:6249-6271. [PMID: 34480337 PMCID: PMC8639577 DOI: 10.1007/s12035-021-02495-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 07/12/2021] [Indexed: 12/19/2022]
Abstract
Multiple sclerosis (MS) is an autoimmunity-related chronic demyelination disease of the central nervous system (CNS), causing young disability. Currently, highly specific immunotherapies for MS are still lacking. Programmed cell death 1 (PD-1) is an immunosuppressive co-stimulatory molecule, which is expressed on activated T lymphocytes, B lymphocytes, natural killer cells, and other immune cells. PD-L1, the ligand of PD-1, is expressed on T lymphocytes, B lymphocytes, dendritic cells, and macrophages. PD-1/PD-L1 delivers negative regulatory signals to immune cells, maintaining immune tolerance and inhibiting autoimmunity. This review comprehensively summarizes current insights into the role of PD-1/PD-L1 signaling in MS and its animal model experimental autoimmune encephalomyelitis (EAE). The potentiality of PD-1/PD-L1 as biomarkers or therapeutic targets for MS will also be discussed.
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Affiliation(s)
- Yan Mi
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Xinmin Street 71#, Changchun, 130021 China
| | - Jinming Han
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Xinmin Street 71#, Changchun, 130021 China
- Present Address: Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Jie Zhu
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Xinmin Street 71#, Changchun, 130021 China
- Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Karolinska University Hospital, Solna, Stockholm, Sweden
| | - Tao Jin
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Xinmin Street 71#, Changchun, 130021 China
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Gatselis NK, Azariadis K, Lyberopoulou A, Dalekos GN. Programmed cell death-1 rs11568821 and interleukin-28B rs12979860 polymorphisms in autoimmune hepatitis. J Transl Autoimmun 2021; 4:100126. [PMID: 34632357 PMCID: PMC8488593 DOI: 10.1016/j.jtauto.2021.100126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 09/27/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Autoimmune hepatitis (AIH) is a relatively rare chronic liver disease of unknown etiology. The genetic background affects susceptibility, clinical phenotype, and prognosis. The programmed cell death-1 rs11568821 polymorphism (PD1.3) has been associated with susceptibility to autoimmune diseases. The interleukin-28B (IL28B) rs12979860 polymorphism has been associated with steatosis, inflammation, and fibrosis in liver diseases. AIM Our aim was to investigate for the first time the incidence and clinical significance of PD1.3 and IL28B rs12979860 in AIH. METHODS Two hundred patients with AIH were evaluated, while 100 healthy subjects were used as controls. Genotyping was performed with in-house allelic discrimination End-Point PCR. RESULTS The SNP PD1.3/A was present in 36/200 (18%) AIH patients compared to 28/100 (28%) healthy controls (p = 0.065). The AA/GA genotypes were not associated with the mode of presentation of AIH, the histological grade or stage, the presence of cirrhosis, risk of disease progression, response to treatment and survival. The IL28B rs12979860 genotype distribution was CC 79/200 (39.5%), TT 36/200 (18%) and CT 85/200 (42.5%), in similar rates with healthy controls (p = 0.878). Inflammatory activity and fibrosis stage did not differ between CC homozygotes and CT/TT carriers. LDL cholesterol was significantly higher in CC than CT/TT patients (P = 0.027), though no differences was found regarding the presence of steatosis or steatohepatitis. On-treatment response to immunosuppressive treatment was not affected by the IL28B rs12979860 polymorphism. However, CC homozygotes AIH patients achieved treatment withdrawal in significantly higher rates (OR 2.3, 95%CI: 1.1-4.7, P = 0.02) irrespective of the presence of steatosis or steatohepatitis. CONCLUSIONS The PD1.3 and IL28B rs12979860 variants are unlikely to contribute to AIH susceptibility, disease presentation and prognosis. The IL28B rs12979860 is not associated with the presence of concurrent steatosis or steatohepatitis. However, although on-treatment response rates to immunosuppression were not affected by the IL28B rs12979860 polymorphism, AIH patients with CC homozygosity were more likely to achieve complete treatment withdrawal. This novel finding needs validation and further clarification from larger multicenter studies.
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Key Words
- AIH, Autoimmune hepatitis.
- ANA, Antinuclear antibodies.
- Anti-LC1, Liver cytosol type-1 antibodies.
- Anti-LKM1, Liver kidney microsomal type-1 antibodies
- Anti-SLA/LP, Soluble liver antigen/liver pancreas antibodies.
- Autoimmune hepatitis
- CR, Complete response.
- HCC, Hepatocellular carcinoma.
- HCV, Hepatis C virus.
- HDL, High density lipoprotein.
- HLA, Human leukocyte antigen.
- HWE, Hardy-weinberg equilibrium.
- IL28B, Interleukin 28B.
- INR, International normalized ratio.
- IQR, Interquartile range.
- IgG, Immunoglobulin class G.
- Interleukin-28B
- LDL, Low density lipoprotein
- MetS, Metabolic syndrome.
- NAFLD, Non-alcoholic fatty liver disease.
- PCR, Polymerase chain reaction.
- PD1, Programmed cell death-1.
- Polymorphisms
- Programmed cell death-1
- SD, Standard deviation.
- SLE, Systemic lupus erythematosus.
- SMA, Smooth muscle antibodies.
- SNP, Single nucleotide polymorphism.
- ULN, Upper limit of normal.
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Affiliation(s)
- Nikolaos K. Gatselis
- Department of Medicine and Research Laboratory of Internal Medicine, National Expertise Center of Greece in Autoimmune Liver Diseases, General University Hospital of Larissa, 41110, Larissa, Greece
| | - Kalliopi Azariadis
- Department of Medicine and Research Laboratory of Internal Medicine, National Expertise Center of Greece in Autoimmune Liver Diseases, General University Hospital of Larissa, 41110, Larissa, Greece
| | - Aggeliki Lyberopoulou
- Department of Medicine and Research Laboratory of Internal Medicine, National Expertise Center of Greece in Autoimmune Liver Diseases, General University Hospital of Larissa, 41110, Larissa, Greece
| | - George N. Dalekos
- Department of Medicine and Research Laboratory of Internal Medicine, National Expertise Center of Greece in Autoimmune Liver Diseases, General University Hospital of Larissa, 41110, Larissa, Greece
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10
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Ibañez-Vega J, Vilchez C, Jimenez K, Guevara C, Burgos PI, Naves R. Cellular and molecular regulation of the programmed death-1/programmed death ligand system and its role in multiple sclerosis and other autoimmune diseases. J Autoimmun 2021; 123:102702. [PMID: 34311143 DOI: 10.1016/j.jaut.2021.102702] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 07/07/2021] [Accepted: 07/10/2021] [Indexed: 01/12/2023]
Abstract
Programmed Cell Death 1 (PD-1) receptor and its ligands (PD-Ls) are essential to maintain peripheral immune tolerance and to avoid tissue damage. Consequently, altered gene or protein expression of this system of co-inhibitory molecules has been involved in the development of cancer and autoimmunity. Substantial progress has been achieved in the study of the PD-1/PD-Ls system in terms of regulatory mechanisms and therapy. However, the role of the PD-1/PD-Ls pathway in neuroinflammation has been less explored despite being a potential target of treatment for neurodegenerative diseases. Multiple Sclerosis (MS) is the most prevalent, chronic, inflammatory, and autoimmune disease of the central nervous system that leads to demyelination and axonal damage in young adults. Recent studies have highlighted the key role of the PD-1/PD-Ls pathway in inducing a neuroprotective response and restraining T cell activation and neurodegeneration in MS. In this review, we outline the molecular and cellular mechanisms regulating gene expression, protein synthesis and traffic of PD-1/PD-Ls as well as relevant processes that control PD-1/PD-Ls engagement in the immunological synapse between antigen-presenting cells and T cells. Also, we highlight the most recent findings regarding the role of the PD-1/PD-Ls pathway in MS and its murine model, experimental autoimmune encephalomyelitis (EAE), including the contribution of PD-1 expressing follicular helper T (TFH) cells in the pathogenesis of these diseases. In addition, we compare and contrast results found in MS and EAE with evidence reported in other autoimmune diseases and their experimental models, and review PD-1/PD-Ls-targeting therapeutic approaches.
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Affiliation(s)
- Jorge Ibañez-Vega
- Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - Constanza Vilchez
- Faculty of Natural Sciences, Mathematics and Environment, Universidad Tecnológica Metropolitana, Santiago, Chile
| | - Karin Jimenez
- Faculty of Natural Sciences, Mathematics and Environment, Universidad Tecnológica Metropolitana, Santiago, Chile
| | - Carlos Guevara
- Department of Neurology and Neurosurgery, Hospital Clínico Universidad de Chile, Santiago, Chile
| | - Paula I Burgos
- Department of Clinical Immunology and Rheumatology, School of Medicine, Pontificia Universidad Católica de Chile, Chile.
| | - Rodrigo Naves
- Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Santiago, Chile.
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11
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Stein S, Henze L, Poch T, Carambia A, Krech T, Preti M, Schuran FA, Reich M, Keitel V, Fiorotto R, Strazzabosco M, Fischer L, Li J, Müller LM, Wagner J, Gagliani N, Herkel J, Schwinge D, Schramm C. IL-17A/F enable cholangiocytes to restrict T cell-driven experimental cholangitis by upregulating PD-L1 expression. J Hepatol 2021; 74:919-930. [PMID: 33197512 PMCID: PMC8778963 DOI: 10.1016/j.jhep.2020.10.035] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 10/26/2020] [Accepted: 10/30/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS IL-17A-producing T cells are present in autoimmune cholestatic liver diseases; however, little is known about the contribution of IL-17 to periductal immune responses. Herein, we investigated the role of IL-17 produced by antigen-specific CD8+ T cells in a mouse model of cholangitis and in vitro in human cholangiocyte organoids. METHODS K14-OVAp mice express a major histocompatibility complex I-restricted ovalbumin (OVA) peptide sequence (SIINFEKL) on cholangiocytes. Cholangitis was induced by the adoptive transfer of transgenic OVA-specific ovalbumin transgene (OT)-1 CD8+ T cells that either had OT-1wt or lacked IL-17A/F (OT-1IL17ko). The response of mouse and human cholangiocytes/organoids to IL-17A was assessed in vitro. RESULTS Transfer of OVA-specific OT-1IL17ko cells significantly aggravated periductal inflammation in K14-OVAp recipient mice compared with transfer of OT-1wt T cells. OT-1IL17ko T cells were highly activated in the liver and displayed increased cytotoxicity and proliferation. IL-17A/F produced by transferred OT-1wt CD8+ T cells induced upregulation of the inhibitory molecule programmed cell death ligand 1 (PD-L1) on cholangiocytes, restricting cholangitis by limiting cytotoxicity and proliferation of transferred cells. In contrast, OT-1IL17ko T cells failed to induce PD-L1 on cholangiocytes, resulting in uncontrolled expansion of cytotoxic CD8+ T cells and aggravated cholangitis. Blockade of PD-L1 after transfer of OT-1wt T cells with anti-PD-L1 antibody also resulted in aggravated cholangitis. Using human cholangiocyte organoids, we were able to confirm that IL-17A induces PD-L1 expression in cholangiocytes. CONCLUSIONS We demonstrate that by upregulating PD-L1 on cholangiocytes, IL-17 has an important role in restricting cholangitis and protecting against CD8+ T cell-mediated inflammatory bile duct injury. Caution should be exercised when targeting IL-17 for the treatment of cholangitis. LAY SUMMARY IL-17 is assumed to be a driver of inflammation in several autoimmune diseases, such as psoriasis. IL-17 is also present in inflammatory diseases of the bile duct, but its role in these conditions is not clear, as the effects of IL-17 depend on the context of its expression. Herein, we investigated the role of IL-17 in an experimental autoimmune cholangitis mouse model, and we identified an important protective effect of IL-17 on cholangiocytes, enabling them to downregulate bile duct inflammation via checkpoint inhibitor PD-L1.
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Affiliation(s)
- Stephanie Stein
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Lara Henze
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Tobias Poch
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Antonella Carambia
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Till Krech
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Max Preti
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Fenja Amrei Schuran
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Maria Reich
- Clinic for Gastroenterology, Hepatology and Infectious Diseases, Heinrich-Heine-University, Düsseldorf, Germany
| | - Verena Keitel
- Clinic for Gastroenterology, Hepatology and Infectious Diseases, Heinrich-Heine-University, Düsseldorf, Germany
| | - Romina Fiorotto
- Liver Center, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Mario Strazzabosco
- Liver Center, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Lutz Fischer
- Department of Hepatobiliary Surgery and Transplantation, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jun Li
- Department of Hepatobiliary Surgery and Transplantation, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Luisa Marie Müller
- Leibniz Institute for Experimental Virology, Heinrich Pette Institute, Hamburg, Germany
| | - Jonas Wagner
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Nicola Gagliani
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Immunology and Allergy Unit, Department of Medicine Solna, Karolinska Institute and University Hospital, Stockholm, Sweden; Hamburg Center for Translational Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Johannes Herkel
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Dorothee Schwinge
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Christoph Schramm
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Hamburg Center for Translational Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Martin Zeitz Center for Rare Diseases, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
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12
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Liu Q, Tian J, Tian Y, Sun Q, Sun D, Wang F, Xu H, Ying G, Wang J, Yetisen AK, Jiang N. Near-Infrared-II Nanoparticles for Cancer Imaging of Immune Checkpoint Programmed Death-Ligand 1 and Photodynamic/Immune Therapy. ACS NANO 2021; 15:515-525. [PMID: 33426893 DOI: 10.1021/acsnano.0c05317] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Development of second near-infrared (NIR-II) nanoparticles (NPs) with high biocompatibility, low toxicity, and high singlet oxygen quantum yield (ΦΔ) to prevent tumor recurrence is highly desirable in molecular imaging and photodynamic/immune combination therapy. Here, theranostic photosensitizer BODIPY (BDP)-I-N-anti-PD-L1 NPs were developed by encapsulating the photosensitizer BDP-I-N with amphipathic poly(styrene-co-chloromethylstyrene)-graft-poly(ethylene glycol) nanocarriers through self-assembly functionalization with programmed cell death-ligand 1 (PD-L1) monoclonal antibody. These NPs exhibit highly intensive luminescence in the NIR-II window (1000-1700 nm) to real-time imaging of immune checkpoint PD-L1, high singlet oxygen quantum yield (ΦΔ = 73%), and an eliminating effect of primary cancers. The NPs also allow for profiling PD-L1 expression as well as accumulating in MC38 tumor and enabling molecular imaging in vivo. Upon an 808 nm laser excitation, the targeted NPs produce an emission wavelength above 1200 nm to image a tumor to a normal tissue signal ratio (T/NT) at an approximate value of 14.1. Moreover, the MC38 tumors in mice are eliminated by combining photodynamic therapy and immunotherapy within 30 days, with no tumor recurrence within a period of 40 days. In addition, the tumors do not grow in the rechallenged mice within 7 days of inoculation. Such a strategy shows a durable immune memory effect against tumor rechallenging without toxic side effects to major organs.
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Affiliation(s)
- Qiang Liu
- Artemisinin Research Center and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Jiangwei Tian
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Ye Tian
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China
| | - Qinchao Sun
- Guangdong Provincial Key Laboratory of Biomedical Optical Imaging Technology & Center for Biomedical Optics and Molecular Imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Dan Sun
- Jiangsu Co-innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals, Nanjing Forestry University, Nanjing 210037, China
| | - Feifei Wang
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Haijun Xu
- Jiangsu Co-innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals, Nanjing Forestry University, Nanjing 210037, China
| | - Guoliang Ying
- West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China
- Brigham and Women's Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
| | - Jigang Wang
- Artemisinin Research Center and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
- Department of Urology, Shenzhen People's Hospital (The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen 518020, China
| | - Ali K Yetisen
- Department of Chemical Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Nan Jiang
- West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China
- School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
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13
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Zhao Q, Guo J, Zhao Y, Shen J, Kaboli PJ, Xiang S, Du F, Wu X, Li M, Wan L, Li X, Wen Q, Li J, Zou C, Xiao Z. Comprehensive assessment of PD-L1 and PD-L2 dysregulation in gastrointestinal cancers. Epigenomics 2020; 12:2155-2171. [PMID: 33337915 DOI: 10.2217/epi-2020-0093] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background: PD-L1 and PD-L2 are ligands of PD-1. Their overexpression has been reported in different cancers. However, the underlying mechanism of PD-L1 and PD-L2 dysregulation and their related signaling pathways are still unclear in gastrointestinal cancers. Materials & methods: The expression of PD-L1 and PD-L2 were studied in The Cancer Genome Atlas and Genotype-Tissue Expression databases. The gene and protein alteration of PD-L1 and PD-L2 were analyzed in cBioportal. The direct transcription factor regulating PD-L1/PD-L2 was determined with ChIP-seq data. The association of PD-L1/PD-L2 expression with clinicopathological parameters, survival, immune infiltration and tumor mutation burden were investigated with data from The Cancer Genome Atlas. Potential targets and pathways of PD-L1 and PD-L2 were determined by protein enrichment, WebGestalt and gene ontology. Results: Comprehensive analysis revealed that PD-L1 and PD-L2 were significantly upregulated in most types of gastrointestinal cancers and their expressions were positively correlated. SP1 was a key transcription factor regulating the expression of PD-L1. Conclusion: Higher PD-L1 or PD-L2 expression was significantly associated with poor overall survival, higher tumor mutation burden and more immune and stromal cell populations. Finally, HIF-1, ERBB and mTOR signaling pathways were most significantly affected by PD-L1 and PD-L2 dysregulation. Altogether, this study provided comprehensive analysis of the dysregulation of PD-L1 and PD-L2, its underlying mechanism and downstream pathways, which add to the knowledge of manipulating PD-L1/PD-L2 for cancer immunotherapy.
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Affiliation(s)
- Qijie Zhao
- Clinical Medical Research Center, The Second Clinical Medical College of Jinan University, The First Affiliated Hospital of Southern University, Shenzhen People's Hospital, Shenzhen, Guangdong 518020, PR China.,Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, PR China.,Department of Pathophysiology, College of Basic Medical Science, Southwest Medical University, Luzhou 646000, Sichuan, PR China
| | - Jinan Guo
- The department of urology, The Second Clinical Medical college of Jinan University (Shenzhen people's Hospital), The First Affiliated Hospital of South University of Science & Technology of China, Shenzhen Urology Minimally Invasive Engineering Center, Shenzhen, Guangdong, PR China.,Shenzhen Public Service Platform on Tumor Precision Medicine & Molecular Diagnosis, Shenzhen, Guangdong, PR China
| | - Yueshui Zhao
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, PR China.,South Sichuan Institute of Translational Medicine, Luzhou, Sichuan, PR China
| | - Jing Shen
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, PR China.,South Sichuan Institute of Translational Medicine, Luzhou, Sichuan, PR China
| | - Parham Jabbarzadeh Kaboli
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, PR China.,South Sichuan Institute of Translational Medicine, Luzhou, Sichuan, PR China
| | - Shixin Xiang
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, PR China
| | - Fukuan Du
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, PR China.,South Sichuan Institute of Translational Medicine, Luzhou, Sichuan, PR China
| | - Xu Wu
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, PR China.,South Sichuan Institute of Translational Medicine, Luzhou, Sichuan, PR China
| | - Mingxing Li
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, PR China.,South Sichuan Institute of Translational Medicine, Luzhou, Sichuan, PR China
| | - Lin Wan
- Department of Hematology & Oncology, The Children's Hospital of Soochow, Jiangsu, PR China
| | - Xiang Li
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, PR China
| | - Qinglian Wen
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, PR China
| | - Jing Li
- Department of Oncology & Hematology, Hospital (T.C.M) Affiliated to Southwest Medical University, Luzhou, Sichuan, PR China
| | - Chang Zou
- Clinical Medical Research Center, The Second Clinical Medical College of Jinan University, The First Affiliated Hospital of Southern University, Shenzhen People's Hospital, Shenzhen, Guangdong 518020, PR China.,Shenzhen Public Service Platform on Tumor Precision Medicine & Molecular Diagnosis, Shenzhen, Guangdong, PR China
| | - Zhangang Xiao
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, PR China.,South Sichuan Institute of Translational Medicine, Luzhou, Sichuan, PR China
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14
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Li S, Chu X, Ye L, Ni J, Zhu Z. A narrative review of synergistic drug administration in unresectable locally advanced non-small cell lung cancer: current landscape and future prospects in the era of immunotherapy. Transl Lung Cancer Res 2020; 9:2082-2096. [PMID: 33209628 PMCID: PMC7653136 DOI: 10.21037/tlcr-20-512] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 07/25/2020] [Indexed: 12/25/2022]
Abstract
Based on the PACIFIC study, the standard care of unresectable locally advanced non-small cell lung cancer (LA-NSCLC) shifted from concurrent chemo-radiotherapy (CCRT) alone to CCRT followed by durvalumab consolidation in 2017. In the era of immunotherapy, two kinds of therapeutic drugs are involved in the management of LA-NSCLC: chemotherapeutics and anti-PD-1/PD-L1 agents. However, the best choices of systematic chemotherapy, immunotherapy, and treatment schedule remain controversial. The immune modulation effects of chemotherapy, as well as the potential immunosuppressive impact of pretreatment medications, should be taken into consideration. Indeed, chemotherapeutics are double-edged swords to immunotherapy, with both stimulatory and suppressive effects on the immune system. Moreover, low-dose chemotherapy is reported to enhance anti-tumor immune responses with reduced toxicities. As for glucocorticoids, there is no consensus about its exact impact on the efficacy of immunotherapy. In addition, the timing of anti-PD-1/PD-L1 agent related to CCRT has three modes: induction, concurrent, and consolidation therapy. Although CCRT followed by durvalumab consolidation is the standard of care, the best sequence of immunotherapy and chemo-radiotherapy is still under debate. Furthermore, the efficacy and toxicity of various PD-1/PD-L1 inhibitors should be compared, especially in the background of CCRT. In this review, we will summarize the detailed knowledge about chemotherapeutics and anti-PD-1/PD-L1 axis agents, and discuss the potential implications in designing novel, effective treatment strategies for LA-NSCLC.
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Affiliation(s)
- Shuyan Li
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Xiao Chu
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Luxi Ye
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jianjiao Ni
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Zhengfei Zhu
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Institute of Thoracic Oncology, Fudan University, Shanghai, China
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15
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Zhang S, Wang L, Li M, Zhang F, Zeng X. The PD-1/PD-L pathway in rheumatic diseases. J Formos Med Assoc 2020; 120:48-59. [PMID: 32334916 DOI: 10.1016/j.jfma.2020.04.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 04/03/2020] [Accepted: 04/06/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND/PURPOSE Autoimmune diseases are diseases in which the body produces an abnormal immune response to self-antigens and damages its own tissues. Programmed death-1 (PD-1) and its ligands (PD-Ls) have been discovered to be important negative regulators of the immune system, playing crucial roles in autoimmunity. METHODS We analyzed the existing scientific literature dealing with this issue. In this review, the PD-1/PD-L pathway in the genetic susceptibility to and pathogenesis of rheumatic diseases is discussed. The PD-1/PD-L pathway might be helpful for diagnosing, evaluating the disease activity of and treating rheumatic diseases. RESULTS PD-1/PD-L gene polymorphisms are associated with a genetic predisposition to rheumatic disorders, which can provide reference information for diagnosis and disease activity. The conclusion of the crucial role of the PD-1/PD-L pathway in the pathogenesis of rheumatic diseases is consistent, but the details remain controversial. In some animal models, manipulating the PD-1/PD-L pathway could decrease disease severity. PD-1/PD-Ls may enable us to develop new therapeutics for patients with rheumatic diseases in the future. CONCLUSION The PD-1/PD-L pathway plays crucial roles in rheumatic disease. More work is needed to provide a better mechanistic understanding of the PD-1/PD-L pathway and to facilitate the precise therapeutic manipulation of this pathway.
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Affiliation(s)
- Shuo Zhang
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Li Wang
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100730, China.
| | - Mengtao Li
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Fengchun Zhang
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Xiaofeng Zeng
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100730, China
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16
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Anwanwan D, Singh SK, Singh S, Saikam V, Singh R. Challenges in liver cancer and possible treatment approaches. Biochim Biophys Acta Rev Cancer 2020; 1873:188314. [PMID: 31682895 PMCID: PMC6981221 DOI: 10.1016/j.bbcan.2019.188314] [Citation(s) in RCA: 688] [Impact Index Per Article: 172.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 08/27/2019] [Accepted: 08/28/2019] [Indexed: 02/06/2023]
Abstract
Globally, liver cancer is the most frequent fatal malignancy; in the United States, it ranks fifth. Patients are often diagnosed with liver cancer in advanced stages, contributing to its poor prognosis. Of all liver cancer cases, >90% are hepatocellular carcinomas (HCCs) for which chemotherapy and immunotherapy are the best options for therapy. For liver cancer patients, new treatment options are necessary. Use of natural compounds and/or nanotechnology may provide patients with better outcomes with lower systemic toxicity and fewer side effects. Improved treatments can lead to better prognoses. Finally, in this review, we present some of the problems and current treatment options contributing to the poor outcomes for patients with liver cancer.
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Affiliation(s)
- David Anwanwan
- Department of Microbiology, Biochemistry and Immunology, Cancer Health Equity Institute, Morehouse School of Medicine, Atlanta, GA 30310, USA
| | - Santosh Kumar Singh
- Department of Microbiology, Biochemistry and Immunology, Cancer Health Equity Institute, Morehouse School of Medicine, Atlanta, GA 30310, USA
| | - Shriti Singh
- Department of Kriya Sharir, Institute of Medical Sciences, Banaras Hindu University, Varanasi, UP 221 005, India
| | - Varma Saikam
- Department of Chemistry, Center for Therapeutics and Diagnostics, Georgia State University, Atlanta, GA 30302, USA
| | - Rajesh Singh
- Department of Microbiology, Biochemistry and Immunology, Cancer Health Equity Institute, Morehouse School of Medicine, Atlanta, GA 30310, USA.
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17
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Elmezayen HA, Okabe H, Baba Y, Yusa T, Itoyama R, Nakao Y, Yamao T, Umzaki N, Tsukamoto M, Kitano Y, Miyata T, Arima K, Hayashi H, Imai K, Chikamoto A, Yamashita YI, Baba H. Clinical role of serum programmed death ligand 1 in patients with hepatocellular carcinoma: Where does it come from? Surg Today 2019; 50:569-576. [PMID: 31760568 DOI: 10.1007/s00595-019-01920-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 11/06/2019] [Indexed: 12/14/2022]
Abstract
PURPOSES Programmed death ligand 1 (PD-L1) is a key target for the treatment of several malignancies. The present study was conducted to clarify the role of serum PD-L1 in hepatocellular carcinoma (HCC). METHODS Serum PD-L1 (sPD-L1) was examined by an enzyme-linked immunosorbent assay in 153 patients with HCC who underwent curative hepatectomy at Kumamoto University in 2011-2016. The expression of PD-L1 in tissue (tPD-L1) was investigated by immunohistochemistry. The clinical roles of the PD-L1 expression in both serum and tissue were examined. RESULTS The sPD-L1 was significantly elevated in HCC patients compared to patients without any malignant or inflammatory disease (234 vs. 93 pg/mL, p < 0.0001). The percentage of the tPD-L1-positive area (%tPD-L1) in the background liver was significantly higher than in the tumor (1.52% vs. 0.48%, p < 0.0001). The %tPD-L1 in the background liver but not in the tumor was significantly correlated with the sPD-L1 level (p = 0.0079). The sPD-L1, %tPD-L1 in the tumor, and %tPD-L1 in the background liver were not correlated with the overall survival after surgery. CONCLUSION PD-L1-expressing cells in the background liver, but not in the tumor tissue, appeared to contribute to the sPD-L1 level. The sPD-L1 level may thus not indicate the tumor burden in patients with HCC.
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Affiliation(s)
- Hatem A Elmezayen
- Department of Gastroenterological Surgery, Graduate School of Life Science, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan
- Department of Chemistry, Helwan University, Cairo, Egypt
| | - Hirohisa Okabe
- Department of Gastroenterological Surgery, Graduate School of Life Science, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan
| | - Yoshifumi Baba
- Department of Gastroenterological Surgery, Graduate School of Life Science, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan
| | - Toshihiko Yusa
- Department of Gastroenterological Surgery, Graduate School of Life Science, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan
| | - Rumi Itoyama
- Department of Gastroenterological Surgery, Graduate School of Life Science, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan
| | - Yosuke Nakao
- Department of Gastroenterological Surgery, Graduate School of Life Science, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan
| | - Takanobu Yamao
- Department of Gastroenterological Surgery, Graduate School of Life Science, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan
| | - Naoki Umzaki
- Department of Gastroenterological Surgery, Graduate School of Life Science, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan
| | - Masayo Tsukamoto
- Department of Gastroenterological Surgery, Graduate School of Life Science, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan
| | - Yuki Kitano
- Department of Gastroenterological Surgery, Graduate School of Life Science, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan
| | - Tatsunori Miyata
- Department of Gastroenterological Surgery, Graduate School of Life Science, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan
| | - Kota Arima
- Department of Gastroenterological Surgery, Graduate School of Life Science, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan
| | - Hiromitsu Hayashi
- Department of Gastroenterological Surgery, Graduate School of Life Science, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan
| | - Katsunori Imai
- Department of Gastroenterological Surgery, Graduate School of Life Science, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan
| | - Akira Chikamoto
- Department of Gastroenterological Surgery, Graduate School of Life Science, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan
| | - Yo-Ichi Yamashita
- Department of Gastroenterological Surgery, Graduate School of Life Science, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan
| | - Hideo Baba
- Department of Gastroenterological Surgery, Graduate School of Life Science, Kumamoto University, 1-1-1 Honjo, Kumamoto, 860-8556, Japan.
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18
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Behairy OG, Behiry EG, El Defrawy MS, El Adly AN. Diagnostic value of soluble programmed cell death protein-1 in type-1 autoimmune hepatitis in Egyptian children. Scandinavian Journal of Clinical and Laboratory Investigation 2019; 80:59-65. [DOI: 10.1080/00365513.2019.1695283] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Ola G. Behairy
- Pediatrics Department, Faculty of Medicine, Benha University, Benha, Egypt
| | - Eman G. Behiry
- Clinical Pathology Department, Faculty of Medicine, Benha University, Benha, Egypt
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19
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Immune checkpoint molecules. Possible future therapeutic implications in autoimmune diseases. J Autoimmun 2019; 104:102333. [DOI: 10.1016/j.jaut.2019.102333] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 08/29/2019] [Indexed: 02/07/2023]
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20
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Agina HA, Ehsan NA, Abd-Elaziz TA, Abd-Elfatah GA, Said EM, Sira MM. Hepatic expression of programmed death-1 (PD-1) and its ligand, PD-L1, in children with autoimmune hepatitis: relation to treatment response. Clin Exp Hepatol 2019; 5:256-264. [PMID: 31598564 PMCID: PMC6781821 DOI: 10.5114/ceh.2019.87642] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Accepted: 06/01/2019] [Indexed: 02/07/2023] Open
Abstract
AIM OF THE STUDY Autoimmune hepatitis (AIH) is characterized histologically by aggressive inflammation with interface hepatitis and prominent lymphoplasmacytic infiltration. Programmed death-1 (PD-1) is expressed on activated lymphocytes. Engagement of PD-1 by its ligand PD-L1 leads to cell apoptosis and death. We aimed to evaluate the immunohistochemical expression of PD-1 and PD-L1 in children with AIH, and its relation to treatment outcome. MATERIAL AND METHODS Pre-treatment liver biopsies of 31 children with AIH were compared to 30 children with chronic hepatitis C virus (HCV) infection as a control group. PD-1 was evaluated in lymphocytes, while PD-L1 was evaluated in lymphocytes, hepatocytes, biliary epithelial cells, sinusoidal endothelial cells and Kupffer cells. All AIH patients received the standard treatment. RESULTS The mean PD-1 was significantly higher in AIH than HCV patients (29.19 ±18.5% vs. 15.2 ±10.1%; p = 0.002) while there was no statistically significant difference as regards PD-L1 on lymphocytes (p = 0.853). Neither PD-1 nor PD-L1 correlated with either liver fibrosis or the inflammatory activity (p > 0.05 for all). PD-1/PD-L1 ratio was significantly higher in AIH compared to HCV patients and in non-responder AIH patients compared to responders (46.9 vs. 6.58). PD-1 expression was comparable in both responders and non-responders (p = 0.813), while PD-L1 was significantly upregulated in responders (4.17 ±3.15% vs. 0.63 ±1.3%; p = 0.046). PD-L1 expression on hepatocytes, biliary epithelial cells, sinusoidal endothelial cells and Kupffer cells was comparable in AIH and HCV groups. CONCLUSIONS PD-1/PD-L1 ratio, which reflects immune aggression, was significantly higher in AIH compared to HCV patients and in non-responder AIH patients compared to responders.
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Affiliation(s)
- Hala A Agina
- Pathology Department, Faculty of Medicine, Benha University, Egypt
| | - Nermine A Ehsan
- Pathology Department, National Liver Institute, Menoufia University, Egypt
| | | | | | - Eman M Said
- Pathology Department, Faculty of Medicine, Benha University, Egypt
| | - Mostafa M Sira
- Pediatric Hepatology, Gastroenterology and Nutrition Department, National Liver Institute, Menoufia University, Egypt
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21
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Czaja AJ. Immune inhibitory proteins and their pathogenic and therapeutic implications in autoimmunity and autoimmune hepatitis. Autoimmunity 2019; 52:144-160. [PMID: 31298041 DOI: 10.1080/08916934.2019.1641200] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Key inhibitory proteins can blunt immune responses to self-antigens, and deficiencies in this repertoire may promote autoimmunity. The goals of this review are to describe the key immune inhibitory proteins, indicate their possible impact on the development of autoimmune disease, especially autoimmune hepatitis, and encourage studies to clarify their pathogenic role and candidacy as therapeutic targets. English abstracts were identified in PubMed by multiple search terms. Full length articles were selected for review, and secondary and tertiary bibliographies were developed. Cytotoxic T lymphocyte antigen-4 impairs ligation of CD28 to B7 ligands on antigen presenting cells and inhibits the adaptive immune response by increasing anti-inflammatory cytokines, generating regulatory T cells, and reducing T cell activation and proliferation. Programed cell death antigen-1 inhibits T cell selection, activation, and proliferation by binding with two ligands at different phases and locations of the immune response. A soluble alternatively spliced variant of this protein can dampen the inhibitory signal. Autoimmune hepatitis has been associated with polymorphisms of the cytotoxic T lymphocyte antigen-4 gene, reduced hepatic expression of a ligand of programed cell death antigen-1, an interfering soluble variant of this key inhibitory protein, and antibodies against it. Findings have been associated with laboratory indices of liver injury and suboptimal treatment response. Abatacept, belatacept, CD28 blockade, and induction of T cell exhaustion are management considerations that require scrutiny. In conclusion, deficiencies in key immune inhibitory proteins may promote the occurrence of autoimmune diseases, such as autoimmune hepatitis, and emerging interventions may overcome these deficiencies. Investigations should define the nature, impact and management of these inhibitory disturbances in autoimmune hepatitis.
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Affiliation(s)
- Albert J Czaja
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science , Rochester , MN , USA
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22
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Avendaño-Ortiz J, Maroun-Eid C, Martín-Quirós A, Toledano V, Cubillos-Zapata C, Gómez-Campelo P, Varela-Serrano A, Casas-Martin J, Llanos-González E, Alvarez E, García-Río F, Aguirre LA, Hernández-Jiménez E, López-Collazo E. PD-L1 Overexpression During Endotoxin Tolerance Impairs the Adaptive Immune Response in Septic Patients via HIF1α. J Infect Dis 2019; 217:393-404. [PMID: 28973671 DOI: 10.1093/infdis/jix279] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 06/06/2017] [Indexed: 12/20/2022] Open
Abstract
Sepsis, among other pathologies, is an endotoxin tolerance (ET)-related disease. On admission, we classified 48 patients with sepsis into 3 subgroups according to the ex vivo response to lipopolysaccharide. This response correlates with the Acute Physiology and Chronic Health Evaluation (APACHE) II score and the ET degree. Moreover, the ET-related classification determines the outcome of these patients. Programmed cell death-ligand 1 (PD-L1) expression on septic monocytes is also linked with ET status. In addition to the regulation of cytokine production, one of the hallmarks of ET that significantly affects patients with sepsis is T-cell proliferation impairment or a poor switch to the adaptive response. PD-L1/programmed cell death-1 (PD-1) blocking and knockdown assays on tolerant monocytes from both patients with sepsis and the in vitro model reverted the impaired adaptive response. Mechanistically, the transcription factor hypoxia-inducible factor-1α (HIF1α) has been translocated into the nucleus and drives PD-L1 expression during ET in human monocytes. This fact, together with patient classification according to the ex vivo lipopolysaccharide response, opens an interesting field of study and potential personalized clinical applications, not only for sepsis but also for all ET-associated pathologies.
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Affiliation(s)
- José Avendaño-Ortiz
- Innate Immunity Group.,Tumor Immunology Lab, IdiPAZ, La Paz University Hospital.,Biomedical Research Networking Center on Respiratory Diseases (CIBEres)
| | | | | | - Víctor Toledano
- Innate Immunity Group.,Tumor Immunology Lab, IdiPAZ, La Paz University Hospital
| | - Carolina Cubillos-Zapata
- Innate Immunity Group.,Tumor Immunology Lab, IdiPAZ, La Paz University Hospital.,Biomedical Research Networking Center on Respiratory Diseases (CIBEres)
| | | | | | - Jose Casas-Martin
- Innate Immunity Group.,Tumor Immunology Lab, IdiPAZ, La Paz University Hospital
| | | | | | | | - Luis A Aguirre
- Innate Immunity Group.,Tumor Immunology Lab, IdiPAZ, La Paz University Hospital
| | - Enrique Hernández-Jiménez
- Innate Immunity Group.,Tumor Immunology Lab, IdiPAZ, La Paz University Hospital.,Biomedical Research Networking Center on Respiratory Diseases (CIBEres)
| | - Eduardo López-Collazo
- Innate Immunity Group.,Tumor Immunology Lab, IdiPAZ, La Paz University Hospital.,Biomedical Research Networking Center on Respiratory Diseases (CIBEres)
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23
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Knauss S, Preusse C, Allenbach Y, Leonard-Louis S, Touat M, Fischer N, Radbruch H, Mothes R, Matyash V, Böhmerle W, Endres M, Goebel HH, Benveniste O, Stenzel W. PD1 pathway in immune-mediated myopathies: Pathogenesis of dysfunctional T cells revisited. NEUROLOGY-NEUROIMMUNOLOGY & NEUROINFLAMMATION 2019; 6:e558. [PMID: 31044146 PMCID: PMC6467687 DOI: 10.1212/nxi.0000000000000558] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 01/23/2019] [Indexed: 12/12/2022]
Abstract
Objective To investigate the relevance of dysfunctional T cells in immune-mediated myopathies. We analyzed T-cell exhaustion and senescence, in the context of programmed cell death protein 1 (PD1)-related immunity in skeletal muscle biopsies from patients with immune-mediated necrotizing myopathy (IMNM), sporadic inclusion body myositis (sIBM), and myositis induced by immune checkpoint inhibitors (irMyositis). Methods Skeletal muscle biopsies from 12 patients with IMNM, 7 patients with sIBM, and 8 patients with irMyositis were analyzed by immunostaining and immunofluorescence as well as by quantitative PCR. Eight biopsies from nondisease participants served as controls. Results CD3+CD8+ T cells in biopsies from IMNM, sIBM, and irMyositis were largely PD1-positive, while CD68+ macrophages were sparsely positive to the ligand of programmed cell death protein 1 (PD-L1). The sarcolemma of myofibers was PD-L2+ and was colocalized with major histocompatibility complex (MHC) class I. CD68+ macrophages were colocalized with PD-L2. Senescent T cells were strongly enriched in skeletal muscle of sIBM, revealing a distinct immunologic signature. Biopsies from patients with irMyositis showed mild signs of senescence and exhaustion. Conclusion Persistent exposure to antigens in IMNMs and sIBM may lead to T-cell exhaustion, a process controlled by the PD1 receptor and its cognate ligands PD-L1/PD-L2. To our knowledge, these data are the first evidence of presence of dysfunctional T cells and relevance of the PD1 pathway in IMNM, sIBM, and irMyositis. These findings may guide the way to a novel understanding of the immune pathogenesis of immune-mediated myopathies.
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Affiliation(s)
- Samuel Knauss
- Department of Neurology (S.K., W.B., M.E.) and Department of Neuropathology (C.P., N.F., H.R., R.M., V.M., H.-H.G., W.S.), Charité-Universitätsmedizin, Berlin, Germany; Department of Internal Medicine and Clinical Immunology (Y.A., O.B.), Assistance Public-Hôpitaux de Paris, Sorbonne-Université, INSERM, UMR974, Pitié-Salpêtrière University Hospital; Unité de Pathologie Neuromusculaire (S.L.-L.), Centre de Référence Paris-Est, Groupe Hospitalier Pitié-Salpêtrière; Service de Neurologie 2-Mazarin (M.T.), Hôpitaux Universitaires La Pitié Salpêtrière-Charles Foix, APHP; OncoNeuroTox Group (M.T.), Center for Patients with Neurological Complications of Oncologic Treatments, Hôpitaux Universitaires Pitié-Salpetrière-Charles Foix et Hôpital Percy; Inserm U 1127 (M.T.), CNRS UMR 7225, Institut du Cerveau et de la Moelle épinière, ICM, Université Pierre-et-Marie-Curie, Sorbonne Université, Paris, France; Leibniz ScienceCampus Chronic Inflammation (H.R., R.M., W.S.); Center for Stroke Research Berlin (M.E.), Charité-Universitätsmedizin, Berlin; German Centre for Cardiovascular Research (DZHK) (M.E.); and German Center for Neurodegenerative Diseases (DZNE) (M.E.)
| | - Corinna Preusse
- Department of Neurology (S.K., W.B., M.E.) and Department of Neuropathology (C.P., N.F., H.R., R.M., V.M., H.-H.G., W.S.), Charité-Universitätsmedizin, Berlin, Germany; Department of Internal Medicine and Clinical Immunology (Y.A., O.B.), Assistance Public-Hôpitaux de Paris, Sorbonne-Université, INSERM, UMR974, Pitié-Salpêtrière University Hospital; Unité de Pathologie Neuromusculaire (S.L.-L.), Centre de Référence Paris-Est, Groupe Hospitalier Pitié-Salpêtrière; Service de Neurologie 2-Mazarin (M.T.), Hôpitaux Universitaires La Pitié Salpêtrière-Charles Foix, APHP; OncoNeuroTox Group (M.T.), Center for Patients with Neurological Complications of Oncologic Treatments, Hôpitaux Universitaires Pitié-Salpetrière-Charles Foix et Hôpital Percy; Inserm U 1127 (M.T.), CNRS UMR 7225, Institut du Cerveau et de la Moelle épinière, ICM, Université Pierre-et-Marie-Curie, Sorbonne Université, Paris, France; Leibniz ScienceCampus Chronic Inflammation (H.R., R.M., W.S.); Center for Stroke Research Berlin (M.E.), Charité-Universitätsmedizin, Berlin; German Centre for Cardiovascular Research (DZHK) (M.E.); and German Center for Neurodegenerative Diseases (DZNE) (M.E.)
| | - Yves Allenbach
- Department of Neurology (S.K., W.B., M.E.) and Department of Neuropathology (C.P., N.F., H.R., R.M., V.M., H.-H.G., W.S.), Charité-Universitätsmedizin, Berlin, Germany; Department of Internal Medicine and Clinical Immunology (Y.A., O.B.), Assistance Public-Hôpitaux de Paris, Sorbonne-Université, INSERM, UMR974, Pitié-Salpêtrière University Hospital; Unité de Pathologie Neuromusculaire (S.L.-L.), Centre de Référence Paris-Est, Groupe Hospitalier Pitié-Salpêtrière; Service de Neurologie 2-Mazarin (M.T.), Hôpitaux Universitaires La Pitié Salpêtrière-Charles Foix, APHP; OncoNeuroTox Group (M.T.), Center for Patients with Neurological Complications of Oncologic Treatments, Hôpitaux Universitaires Pitié-Salpetrière-Charles Foix et Hôpital Percy; Inserm U 1127 (M.T.), CNRS UMR 7225, Institut du Cerveau et de la Moelle épinière, ICM, Université Pierre-et-Marie-Curie, Sorbonne Université, Paris, France; Leibniz ScienceCampus Chronic Inflammation (H.R., R.M., W.S.); Center for Stroke Research Berlin (M.E.), Charité-Universitätsmedizin, Berlin; German Centre for Cardiovascular Research (DZHK) (M.E.); and German Center for Neurodegenerative Diseases (DZNE) (M.E.)
| | - Sarah Leonard-Louis
- Department of Neurology (S.K., W.B., M.E.) and Department of Neuropathology (C.P., N.F., H.R., R.M., V.M., H.-H.G., W.S.), Charité-Universitätsmedizin, Berlin, Germany; Department of Internal Medicine and Clinical Immunology (Y.A., O.B.), Assistance Public-Hôpitaux de Paris, Sorbonne-Université, INSERM, UMR974, Pitié-Salpêtrière University Hospital; Unité de Pathologie Neuromusculaire (S.L.-L.), Centre de Référence Paris-Est, Groupe Hospitalier Pitié-Salpêtrière; Service de Neurologie 2-Mazarin (M.T.), Hôpitaux Universitaires La Pitié Salpêtrière-Charles Foix, APHP; OncoNeuroTox Group (M.T.), Center for Patients with Neurological Complications of Oncologic Treatments, Hôpitaux Universitaires Pitié-Salpetrière-Charles Foix et Hôpital Percy; Inserm U 1127 (M.T.), CNRS UMR 7225, Institut du Cerveau et de la Moelle épinière, ICM, Université Pierre-et-Marie-Curie, Sorbonne Université, Paris, France; Leibniz ScienceCampus Chronic Inflammation (H.R., R.M., W.S.); Center for Stroke Research Berlin (M.E.), Charité-Universitätsmedizin, Berlin; German Centre for Cardiovascular Research (DZHK) (M.E.); and German Center for Neurodegenerative Diseases (DZNE) (M.E.)
| | - Mehdi Touat
- Department of Neurology (S.K., W.B., M.E.) and Department of Neuropathology (C.P., N.F., H.R., R.M., V.M., H.-H.G., W.S.), Charité-Universitätsmedizin, Berlin, Germany; Department of Internal Medicine and Clinical Immunology (Y.A., O.B.), Assistance Public-Hôpitaux de Paris, Sorbonne-Université, INSERM, UMR974, Pitié-Salpêtrière University Hospital; Unité de Pathologie Neuromusculaire (S.L.-L.), Centre de Référence Paris-Est, Groupe Hospitalier Pitié-Salpêtrière; Service de Neurologie 2-Mazarin (M.T.), Hôpitaux Universitaires La Pitié Salpêtrière-Charles Foix, APHP; OncoNeuroTox Group (M.T.), Center for Patients with Neurological Complications of Oncologic Treatments, Hôpitaux Universitaires Pitié-Salpetrière-Charles Foix et Hôpital Percy; Inserm U 1127 (M.T.), CNRS UMR 7225, Institut du Cerveau et de la Moelle épinière, ICM, Université Pierre-et-Marie-Curie, Sorbonne Université, Paris, France; Leibniz ScienceCampus Chronic Inflammation (H.R., R.M., W.S.); Center for Stroke Research Berlin (M.E.), Charité-Universitätsmedizin, Berlin; German Centre for Cardiovascular Research (DZHK) (M.E.); and German Center for Neurodegenerative Diseases (DZNE) (M.E.)
| | - Norina Fischer
- Department of Neurology (S.K., W.B., M.E.) and Department of Neuropathology (C.P., N.F., H.R., R.M., V.M., H.-H.G., W.S.), Charité-Universitätsmedizin, Berlin, Germany; Department of Internal Medicine and Clinical Immunology (Y.A., O.B.), Assistance Public-Hôpitaux de Paris, Sorbonne-Université, INSERM, UMR974, Pitié-Salpêtrière University Hospital; Unité de Pathologie Neuromusculaire (S.L.-L.), Centre de Référence Paris-Est, Groupe Hospitalier Pitié-Salpêtrière; Service de Neurologie 2-Mazarin (M.T.), Hôpitaux Universitaires La Pitié Salpêtrière-Charles Foix, APHP; OncoNeuroTox Group (M.T.), Center for Patients with Neurological Complications of Oncologic Treatments, Hôpitaux Universitaires Pitié-Salpetrière-Charles Foix et Hôpital Percy; Inserm U 1127 (M.T.), CNRS UMR 7225, Institut du Cerveau et de la Moelle épinière, ICM, Université Pierre-et-Marie-Curie, Sorbonne Université, Paris, France; Leibniz ScienceCampus Chronic Inflammation (H.R., R.M., W.S.); Center for Stroke Research Berlin (M.E.), Charité-Universitätsmedizin, Berlin; German Centre for Cardiovascular Research (DZHK) (M.E.); and German Center for Neurodegenerative Diseases (DZNE) (M.E.)
| | - Helena Radbruch
- Department of Neurology (S.K., W.B., M.E.) and Department of Neuropathology (C.P., N.F., H.R., R.M., V.M., H.-H.G., W.S.), Charité-Universitätsmedizin, Berlin, Germany; Department of Internal Medicine and Clinical Immunology (Y.A., O.B.), Assistance Public-Hôpitaux de Paris, Sorbonne-Université, INSERM, UMR974, Pitié-Salpêtrière University Hospital; Unité de Pathologie Neuromusculaire (S.L.-L.), Centre de Référence Paris-Est, Groupe Hospitalier Pitié-Salpêtrière; Service de Neurologie 2-Mazarin (M.T.), Hôpitaux Universitaires La Pitié Salpêtrière-Charles Foix, APHP; OncoNeuroTox Group (M.T.), Center for Patients with Neurological Complications of Oncologic Treatments, Hôpitaux Universitaires Pitié-Salpetrière-Charles Foix et Hôpital Percy; Inserm U 1127 (M.T.), CNRS UMR 7225, Institut du Cerveau et de la Moelle épinière, ICM, Université Pierre-et-Marie-Curie, Sorbonne Université, Paris, France; Leibniz ScienceCampus Chronic Inflammation (H.R., R.M., W.S.); Center for Stroke Research Berlin (M.E.), Charité-Universitätsmedizin, Berlin; German Centre for Cardiovascular Research (DZHK) (M.E.); and German Center for Neurodegenerative Diseases (DZNE) (M.E.)
| | - Ronja Mothes
- Department of Neurology (S.K., W.B., M.E.) and Department of Neuropathology (C.P., N.F., H.R., R.M., V.M., H.-H.G., W.S.), Charité-Universitätsmedizin, Berlin, Germany; Department of Internal Medicine and Clinical Immunology (Y.A., O.B.), Assistance Public-Hôpitaux de Paris, Sorbonne-Université, INSERM, UMR974, Pitié-Salpêtrière University Hospital; Unité de Pathologie Neuromusculaire (S.L.-L.), Centre de Référence Paris-Est, Groupe Hospitalier Pitié-Salpêtrière; Service de Neurologie 2-Mazarin (M.T.), Hôpitaux Universitaires La Pitié Salpêtrière-Charles Foix, APHP; OncoNeuroTox Group (M.T.), Center for Patients with Neurological Complications of Oncologic Treatments, Hôpitaux Universitaires Pitié-Salpetrière-Charles Foix et Hôpital Percy; Inserm U 1127 (M.T.), CNRS UMR 7225, Institut du Cerveau et de la Moelle épinière, ICM, Université Pierre-et-Marie-Curie, Sorbonne Université, Paris, France; Leibniz ScienceCampus Chronic Inflammation (H.R., R.M., W.S.); Center for Stroke Research Berlin (M.E.), Charité-Universitätsmedizin, Berlin; German Centre for Cardiovascular Research (DZHK) (M.E.); and German Center for Neurodegenerative Diseases (DZNE) (M.E.)
| | - Vitali Matyash
- Department of Neurology (S.K., W.B., M.E.) and Department of Neuropathology (C.P., N.F., H.R., R.M., V.M., H.-H.G., W.S.), Charité-Universitätsmedizin, Berlin, Germany; Department of Internal Medicine and Clinical Immunology (Y.A., O.B.), Assistance Public-Hôpitaux de Paris, Sorbonne-Université, INSERM, UMR974, Pitié-Salpêtrière University Hospital; Unité de Pathologie Neuromusculaire (S.L.-L.), Centre de Référence Paris-Est, Groupe Hospitalier Pitié-Salpêtrière; Service de Neurologie 2-Mazarin (M.T.), Hôpitaux Universitaires La Pitié Salpêtrière-Charles Foix, APHP; OncoNeuroTox Group (M.T.), Center for Patients with Neurological Complications of Oncologic Treatments, Hôpitaux Universitaires Pitié-Salpetrière-Charles Foix et Hôpital Percy; Inserm U 1127 (M.T.), CNRS UMR 7225, Institut du Cerveau et de la Moelle épinière, ICM, Université Pierre-et-Marie-Curie, Sorbonne Université, Paris, France; Leibniz ScienceCampus Chronic Inflammation (H.R., R.M., W.S.); Center for Stroke Research Berlin (M.E.), Charité-Universitätsmedizin, Berlin; German Centre for Cardiovascular Research (DZHK) (M.E.); and German Center for Neurodegenerative Diseases (DZNE) (M.E.)
| | - Wolfgang Böhmerle
- Department of Neurology (S.K., W.B., M.E.) and Department of Neuropathology (C.P., N.F., H.R., R.M., V.M., H.-H.G., W.S.), Charité-Universitätsmedizin, Berlin, Germany; Department of Internal Medicine and Clinical Immunology (Y.A., O.B.), Assistance Public-Hôpitaux de Paris, Sorbonne-Université, INSERM, UMR974, Pitié-Salpêtrière University Hospital; Unité de Pathologie Neuromusculaire (S.L.-L.), Centre de Référence Paris-Est, Groupe Hospitalier Pitié-Salpêtrière; Service de Neurologie 2-Mazarin (M.T.), Hôpitaux Universitaires La Pitié Salpêtrière-Charles Foix, APHP; OncoNeuroTox Group (M.T.), Center for Patients with Neurological Complications of Oncologic Treatments, Hôpitaux Universitaires Pitié-Salpetrière-Charles Foix et Hôpital Percy; Inserm U 1127 (M.T.), CNRS UMR 7225, Institut du Cerveau et de la Moelle épinière, ICM, Université Pierre-et-Marie-Curie, Sorbonne Université, Paris, France; Leibniz ScienceCampus Chronic Inflammation (H.R., R.M., W.S.); Center for Stroke Research Berlin (M.E.), Charité-Universitätsmedizin, Berlin; German Centre for Cardiovascular Research (DZHK) (M.E.); and German Center for Neurodegenerative Diseases (DZNE) (M.E.)
| | - Matthias Endres
- Department of Neurology (S.K., W.B., M.E.) and Department of Neuropathology (C.P., N.F., H.R., R.M., V.M., H.-H.G., W.S.), Charité-Universitätsmedizin, Berlin, Germany; Department of Internal Medicine and Clinical Immunology (Y.A., O.B.), Assistance Public-Hôpitaux de Paris, Sorbonne-Université, INSERM, UMR974, Pitié-Salpêtrière University Hospital; Unité de Pathologie Neuromusculaire (S.L.-L.), Centre de Référence Paris-Est, Groupe Hospitalier Pitié-Salpêtrière; Service de Neurologie 2-Mazarin (M.T.), Hôpitaux Universitaires La Pitié Salpêtrière-Charles Foix, APHP; OncoNeuroTox Group (M.T.), Center for Patients with Neurological Complications of Oncologic Treatments, Hôpitaux Universitaires Pitié-Salpetrière-Charles Foix et Hôpital Percy; Inserm U 1127 (M.T.), CNRS UMR 7225, Institut du Cerveau et de la Moelle épinière, ICM, Université Pierre-et-Marie-Curie, Sorbonne Université, Paris, France; Leibniz ScienceCampus Chronic Inflammation (H.R., R.M., W.S.); Center for Stroke Research Berlin (M.E.), Charité-Universitätsmedizin, Berlin; German Centre for Cardiovascular Research (DZHK) (M.E.); and German Center for Neurodegenerative Diseases (DZNE) (M.E.)
| | - Hans-Hilmar Goebel
- Department of Neurology (S.K., W.B., M.E.) and Department of Neuropathology (C.P., N.F., H.R., R.M., V.M., H.-H.G., W.S.), Charité-Universitätsmedizin, Berlin, Germany; Department of Internal Medicine and Clinical Immunology (Y.A., O.B.), Assistance Public-Hôpitaux de Paris, Sorbonne-Université, INSERM, UMR974, Pitié-Salpêtrière University Hospital; Unité de Pathologie Neuromusculaire (S.L.-L.), Centre de Référence Paris-Est, Groupe Hospitalier Pitié-Salpêtrière; Service de Neurologie 2-Mazarin (M.T.), Hôpitaux Universitaires La Pitié Salpêtrière-Charles Foix, APHP; OncoNeuroTox Group (M.T.), Center for Patients with Neurological Complications of Oncologic Treatments, Hôpitaux Universitaires Pitié-Salpetrière-Charles Foix et Hôpital Percy; Inserm U 1127 (M.T.), CNRS UMR 7225, Institut du Cerveau et de la Moelle épinière, ICM, Université Pierre-et-Marie-Curie, Sorbonne Université, Paris, France; Leibniz ScienceCampus Chronic Inflammation (H.R., R.M., W.S.); Center for Stroke Research Berlin (M.E.), Charité-Universitätsmedizin, Berlin; German Centre for Cardiovascular Research (DZHK) (M.E.); and German Center for Neurodegenerative Diseases (DZNE) (M.E.)
| | - Olivier Benveniste
- Department of Neurology (S.K., W.B., M.E.) and Department of Neuropathology (C.P., N.F., H.R., R.M., V.M., H.-H.G., W.S.), Charité-Universitätsmedizin, Berlin, Germany; Department of Internal Medicine and Clinical Immunology (Y.A., O.B.), Assistance Public-Hôpitaux de Paris, Sorbonne-Université, INSERM, UMR974, Pitié-Salpêtrière University Hospital; Unité de Pathologie Neuromusculaire (S.L.-L.), Centre de Référence Paris-Est, Groupe Hospitalier Pitié-Salpêtrière; Service de Neurologie 2-Mazarin (M.T.), Hôpitaux Universitaires La Pitié Salpêtrière-Charles Foix, APHP; OncoNeuroTox Group (M.T.), Center for Patients with Neurological Complications of Oncologic Treatments, Hôpitaux Universitaires Pitié-Salpetrière-Charles Foix et Hôpital Percy; Inserm U 1127 (M.T.), CNRS UMR 7225, Institut du Cerveau et de la Moelle épinière, ICM, Université Pierre-et-Marie-Curie, Sorbonne Université, Paris, France; Leibniz ScienceCampus Chronic Inflammation (H.R., R.M., W.S.); Center for Stroke Research Berlin (M.E.), Charité-Universitätsmedizin, Berlin; German Centre for Cardiovascular Research (DZHK) (M.E.); and German Center for Neurodegenerative Diseases (DZNE) (M.E.)
| | - Werner Stenzel
- Department of Neurology (S.K., W.B., M.E.) and Department of Neuropathology (C.P., N.F., H.R., R.M., V.M., H.-H.G., W.S.), Charité-Universitätsmedizin, Berlin, Germany; Department of Internal Medicine and Clinical Immunology (Y.A., O.B.), Assistance Public-Hôpitaux de Paris, Sorbonne-Université, INSERM, UMR974, Pitié-Salpêtrière University Hospital; Unité de Pathologie Neuromusculaire (S.L.-L.), Centre de Référence Paris-Est, Groupe Hospitalier Pitié-Salpêtrière; Service de Neurologie 2-Mazarin (M.T.), Hôpitaux Universitaires La Pitié Salpêtrière-Charles Foix, APHP; OncoNeuroTox Group (M.T.), Center for Patients with Neurological Complications of Oncologic Treatments, Hôpitaux Universitaires Pitié-Salpetrière-Charles Foix et Hôpital Percy; Inserm U 1127 (M.T.), CNRS UMR 7225, Institut du Cerveau et de la Moelle épinière, ICM, Université Pierre-et-Marie-Curie, Sorbonne Université, Paris, France; Leibniz ScienceCampus Chronic Inflammation (H.R., R.M., W.S.); Center for Stroke Research Berlin (M.E.), Charité-Universitätsmedizin, Berlin; German Centre for Cardiovascular Research (DZHK) (M.E.); and German Center for Neurodegenerative Diseases (DZNE) (M.E.)
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24
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Sciveres M, Nastasio S, Maggiore G. Novel Diagnostic and Therapeutic Strategies in Juvenile Autoimmune Hepatitis. Front Pediatr 2019; 7:382. [PMID: 31616649 PMCID: PMC6763601 DOI: 10.3389/fped.2019.00382] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 09/04/2019] [Indexed: 12/12/2022] Open
Abstract
Juvenile autoimmune hepatitis (JAIH) is a rare, chronic, inflammatory disease of the liver characterized by a complex interaction between genetic, immunological, and environmental factors leading to loss of immunotolerance to hepatic antigens. It affects both children and adolescents, most commonly females, and its clinical manifestations are quite variable. JAIH is progressive in nature and if left untreated may lead to cirrhosis and terminal liver failure. Although JAIH was first described almost 50 years ago, there have been few significant advances in the clinical management of these patients, both in terms of available diagnostic tools and therapeutic options. Aminotransferase activity, class G immunoglobulins and autoantibodies are the biomarkers used to diagnose AIH and monitor treatment response alongside clinical and histological findings. Despite their utility and cost-effectiveness, these biomarkers are neither an accurate expression of AIH pathogenic mechanism nor a precise measure of treatment response. Current standard of care is mainly based on the administration of steroids and azathioprine. This combination of drugs has been proven effective in inducing remission of disease in the majority of patients dramatically improving their survival; however, it not only fails to restore tolerance to hepatic autoantigens, but it also does not halt disease progression in some patients, it is often needed life-long and finally, it has deleterious side-effects. The ideal therapy should be enough selective to contrast immune-mediated live damage while preserving or potentiating the ability to develop permanent tolerance vs. pathogenic autoantigens. By reviewing the state of the art literature, this article highlights novel diagnostic and therapeutic strategies for managing pediatric AIH with a special focus on new strategies of immunotherapy. These promising tools could improve the diagnostic algorithm, more accurately predict disease prognosis, and provide targeted, individualized treatment.
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Affiliation(s)
- Marco Sciveres
- Pediatric Hepatology and Liver Transplantation, ISMETT-University of Pittsburgh Medical Center Italy, Palermo, Italy
| | - Silvia Nastasio
- Division of Gastroenterology, Hepatology, and Nutrition, Harvard Medical School, Boston Children's Hospital, Boston, MA, United States
| | - Giuseppe Maggiore
- Pediatric Hepatology and Liver Transplantation, ISMETT-University of Pittsburgh Medical Center Italy, Palermo, Italy.,Section of Pediatrics, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
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25
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Wang H, Wang G, Ansari GAS, Khan MF. Trichloroethene metabolite dichloroacetyl chloride induces apoptosis and compromises phagocytosis in Kupffer Cells: Activation of inflammasome and MAPKs. PLoS One 2018; 13:e0210200. [PMID: 30596806 PMCID: PMC6312261 DOI: 10.1371/journal.pone.0210200] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 12/18/2018] [Indexed: 12/20/2022] Open
Abstract
Exposure to trichloroethene (TCE), an occupational and ubiquitous environmental contaminant, is associated with the development of several autoimmune diseases, including autoimmune hepatitis (AIH). However, mechanisms contributing to TCE-mediated AIH are not known. Earlier, we have shown that dichloroacetyl chloride (DCAC), one of the reactive metabolites of TCE with strong acylating capability, can elicit an autoimmune response at much lower dose than TCE in female MRL+/+ mice. Furthermore, Kupffer cells (KCs), the liver resident macrophages, are crucial for hepatic homeostasis, but can also participate in the immunopathogenesis of AIH. However, contribution of KCs in TCE-mediated AIH and the underlying mechanisms are not understood. We hypothesized that increased apoptosis and delayed clearance of apoptotic bodies, due to compromised KC function, will result in the breakdown of self-tolerance, autoimmunity, and ultimately AIH. Therefore, using an in vitro model of immortalized mouse KCs, we investigated the contribution of DCAC in TCE-mediated AIH. KCs were treated with different concentrations of DCAC and apoptosis was measured by Annexin V and PI staining. Also, the impact of DCAC on phagocytic potential of KCs was evaluated. Furthermore, markers of inflammasome (NLRP3 and caspase1) were analyzed by real-time PCR and Western blot analysis. DCAC treatment resulted in significantly increased early and late-stage apoptosis, accompanied with inflammasome activation (NLRP3 increases). DCAC treatment resulted in decreased phagocytic function of KCs in a dose-dependent manner, with reduced MFG-E8 levels (phagocytotic function). Furthermore, DCAC exposure led to induction of phos-ERK and phos-AKT signaling. These findings suggest that DCAC induces apoptosis and inflammasome activation, while compromising the phagocytic function of KCs. Our data support that increased apoptosis and impaired KC function by DCAC could be contributory to TCE-mediated AIH.
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Affiliation(s)
- Hui Wang
- Department of Pathology, University of Texas Medical Branch, Galveston, Texas
| | - Gangduo Wang
- Department of Pathology, University of Texas Medical Branch, Galveston, Texas
| | | | - M. Firoze Khan
- Department of Pathology, University of Texas Medical Branch, Galveston, Texas
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26
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Cantero-Cid R, Casas-Martin J, Hernández-Jiménez E, Cubillos-Zapata C, Varela-Serrano A, Avendaño-Ortiz J, Casarrubios M, Montalbán-Hernández K, Villacañas-Gil I, Guerra-Pastrián L, Peinado B, Marcano C, Aguirre LA, López-Collazo E. PD-L1/PD-1 crosstalk in colorectal cancer: are we targeting the right cells? BMC Cancer 2018; 18:945. [PMID: 30285662 PMCID: PMC6171318 DOI: 10.1186/s12885-018-4853-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 09/24/2018] [Indexed: 12/12/2022] Open
Abstract
Background The analysis of tumour-infiltrating immune cells within patients’ tumour samples in colorectal cancer (CRC) has become an independent predictor of patient survival. The tumour microenvironment and the immune checkpoints, such as PD-L1/PD-1, are relevant to the prognoses and also appear to be relevant for further CRC therapies. Methods We analysed the presence and features of the infiltrated monocyte/macrophage and lymphocyte populations in both tumour and peritumour samples from patients with CRC (n = 15). Results We detected a large number of CD14+ monocytes/macrophages with an alternative phenotype (CD64+CD163+) and CD4+ lymphocytes that infiltrated the tumour, but not the peritumour area. The monocytes/macrophages expressed PD-L1, whereas the lymphocytes were PD-1+; however, we did not find high PD-L1 levels in the tumour cells. Coculture of circulating naïve human monocytes/macrophages and lymphocytes with tumour cells from patients with proficient mismatch repair CRC induced both an alternative phenotype with higher expression of PD-L1 in CD14+ cells and the T-cell exhaustion phenomenon. The addition of an α-PD-1 antibody restored lymphocyte proliferation. Conclusion These results emphasise the interesting nature of immune checkpoint shifting therapies, which have potential clinical applications in the context of colorectal cancer.
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Affiliation(s)
- Ramón Cantero-Cid
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain.,Tumour Immunology Laboratory, IdiPAZ, Madrid, Spain.,Surgery Department, La Paz University Hospital, Madrid, Spain
| | - José Casas-Martin
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain.,Tumour Immunology Laboratory, IdiPAZ, Madrid, Spain
| | - Enrique Hernández-Jiménez
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain.,Tumour Immunology Laboratory, IdiPAZ, Madrid, Spain.,Centre for Biomedical Research Network, CIBEres, Madrid, Spain
| | - Carolina Cubillos-Zapata
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain.,Tumour Immunology Laboratory, IdiPAZ, Madrid, Spain.,Centre for Biomedical Research Network, CIBEres, Madrid, Spain
| | - Aníbal Varela-Serrano
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain.,Tumour Immunology Laboratory, IdiPAZ, Madrid, Spain
| | - José Avendaño-Ortiz
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain.,Tumour Immunology Laboratory, IdiPAZ, Madrid, Spain
| | - Marta Casarrubios
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain.,Tumour Immunology Laboratory, IdiPAZ, Madrid, Spain
| | - Karla Montalbán-Hernández
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain.,Tumour Immunology Laboratory, IdiPAZ, Madrid, Spain
| | - Ignacio Villacañas-Gil
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain.,Tumour Immunology Laboratory, IdiPAZ, Madrid, Spain
| | | | - Begoña Peinado
- Surgery Department, La Paz University Hospital, Madrid, Spain
| | | | - Luis A Aguirre
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain. .,Tumour Immunology Laboratory, IdiPAZ, Madrid, Spain.
| | - Eduardo López-Collazo
- The Innate Immune Response Group, IdiPAZ, La Paz University Hospital, Madrid, Spain. .,Tumour Immunology Laboratory, IdiPAZ, Madrid, Spain. .,Centre for Biomedical Research Network, CIBEres, Madrid, Spain.
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27
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Czaja AJ. Under-Evaluated or Unassessed Pathogenic Pathways in Autoimmune Hepatitis and Implications for Future Management. Dig Dis Sci 2018; 63:1706-1725. [PMID: 29671161 DOI: 10.1007/s10620-018-5072-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 04/12/2018] [Indexed: 12/11/2022]
Abstract
Autoimmune hepatitis is a consequence of perturbations in homeostatic mechanisms that maintain self-tolerance but are incompletely understood. The goals of this review are to describe key pathogenic pathways that have been under-evaluated or unassessed in autoimmune hepatitis, describe insights that may shape future therapies, and encourage investigational efforts. The T cell immunoglobulin mucin proteins constitute a family that modulates immune tolerance by limiting the survival of immune effector cells, clearing apoptotic bodies, and expanding the population of granulocytic myeloid-derived suppressor cells. Galectins influence immune cell migration, activation, proliferation, and survival, and T cell exhaustion can be induced and exploited as a possible management strategy. The programmed cell death-1 protein and its ligands comprise an antigen-independent inhibitory axis that can limit the performance of activated T cells by altering their metabolism, and epigenetic changes can silence pro-inflammatory genes or de-repress anti-inflammatory genes that affect disease severity. Changes in the intestinal microbiota and permeability of the intestinal mucosal barrier can be causative or consequential events that affect the occurrence and phenotype of immune-mediated disease, and they may help explain the female propensity for autoimmune hepatitis. Perturbations within these homeostatic mechanisms have been implicated in experimental models and limited clinical experiences, and they have been favorably manipulated by monoclonal antibodies, recombinant molecules, pharmacological agents or dietary supplements. In conclusion, pathogenic mechanisms that have been implicated in other systemic immune-mediated and liver diseases but under-evaluated or unassessed in autoimmune hepatitis warrant consideration and rigorous evaluation.
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Affiliation(s)
- Albert J Czaja
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, 200 First Street S.W., Rochester, MN, 55905, USA.
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28
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Czaja AJ. Emerging therapeutic biomarkers of autoimmune hepatitis and their impact on current and future management. Expert Rev Gastroenterol Hepatol 2018. [PMID: 29540068 DOI: 10.1080/17474124.2018.1453356] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Autoimmune hepatitis lacks a quantifiable biomarker that is close to its pathogenic mechanisms and that accurately reflects inflammatory activity, correlates with treatment response, and ensures inactive disease before treatment withdrawal. Areas covered: Micro-ribonucleic acids, programmed death-1 protein and its ligands, macrophage migration inhibitory factor, soluble CD163, B cell activating factor, and metabolite patterns in blood were considered the leading candidates as therapeutic biomarkers after search of PubMed from August 1981 to August 2017 using the search words 'biomarkers of autoimmune hepatitis'. Expert commentary: Each of the candidate biomarkers is close to the putative pathogenic mechanisms of autoimmune hepatitis, and each has attributes that support its potential role as a surrogate marker of inflammatory activity that can be monitored during treatment. Future studies must demonstrate the superiority of each biomarker to conventional indices of inflammatory activity and validate their correlation with treatment response and outcome. A reliable therapeutic biomarker would facilitate the individualization of current management algorithms, ensure that pathogenic mechanisms were disrupted or eliminated prior to treatment withdrawal, and reduce the frequency of relapse or unnecessary protracted therapy. The biomarker might also prove to be a target of next-generation therapies.
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Affiliation(s)
- Albert J Czaja
- a Division of Gastroenterology and Hepatology , Mayo Clinic College of Medicine and Science , Rochester , MN , USA
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29
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Liu QZ, Ma WT, Yang JB, Zhao ZB, Yan K, Yao Y, Li L, Miao Q, Gershwin ME, Lian ZX. The CXC Chemokine Receptor 3 Inhibits Autoimmune Cholangitis via CD8 + T Cells but Promotes Colitis via CD4 + T Cells. Front Immunol 2018; 9:1090. [PMID: 29868034 PMCID: PMC5966573 DOI: 10.3389/fimmu.2018.01090] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 05/01/2018] [Indexed: 11/13/2022] Open
Abstract
CXC chemokine receptor 3 (CXCR3), a receptor for the C-X-C motif chemokines (CXCL) CXCL9, CXCL10, and CXCL11, which not only plays a role in chemotaxis but also regulates differentiation and development of memory and effector T cell populations. Herein, we explored the function of CXCR3 in the modulation of different organ-specific autoimmune diseases in interleukin (IL)-2 receptor deficiency (CD25-/-) mice, a murine model for both cholangitis and colitis. We observed higher levels of CXCL9 and CXCL10 in the liver and colon and higher expression of CXCR3 on T cells of the CD25-/- mice compared with control animals. Deletion of CXCR3 resulted in enhanced liver inflammation but alleviated colitis. These changes in liver and colon pathology after CXCR3 deletion were associated with increased numbers of hepatic CD4+ and CD8+ T cells, in particular effector memory CD8+ T cells, as well as decreased T cells in mesenteric lymph nodes and colon lamina propria. In addition, increased interferon-γ response and decreased IL-17A response was observed in both liver and colon after CXCR3 deletion. CXCR3 modulated the functions of T cells involved in different autoimmune diseases, whereas the consequence of such modulation was organ-specific regarding to their effects on disease severity. Our findings emphasize the importance of extra caution in immunotherapy for organ-specific autoimmune diseases, as therapeutic interventions aiming at a target such as CXCR3 for certain disease could result in adverse effects in an unrelated organ.
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Affiliation(s)
- Qing-Zhi Liu
- Liver Immunology Laboratory, School of Life Sciences, University of Science and Technology of China, Hefei, China.,Chronic Disease Laboratory, School of Medicine, Institutes for Life Sciences, South China University of Technology, Guangzhou, China
| | - Wen-Tao Ma
- Liver Immunology Laboratory, School of Life Sciences, University of Science and Technology of China, Hefei, China.,College of Veterinary Medicine, Northwest Agriculture and Forestry University, Yangling, China
| | - Jing-Bo Yang
- Liver Immunology Laboratory, School of Life Sciences, University of Science and Technology of China, Hefei, China
| | - Zhi-Bin Zhao
- Liver Immunology Laboratory, School of Life Sciences, University of Science and Technology of China, Hefei, China.,Chronic Disease Laboratory, School of Medicine, Institutes for Life Sciences, South China University of Technology, Guangzhou, China
| | - Kai Yan
- Liver Immunology Laboratory, School of Life Sciences, University of Science and Technology of China, Hefei, China.,Chronic Disease Laboratory, School of Medicine, Institutes for Life Sciences, South China University of Technology, Guangzhou, China
| | - Yuan Yao
- Liver Immunology Laboratory, School of Life Sciences, University of Science and Technology of China, Hefei, China.,Chronic Disease Laboratory, School of Medicine, Institutes for Life Sciences, South China University of Technology, Guangzhou, China
| | - Liang Li
- Liver Immunology Laboratory, School of Life Sciences, University of Science and Technology of China, Hefei, China.,Chronic Disease Laboratory, School of Medicine, Institutes for Life Sciences, South China University of Technology, Guangzhou, China
| | - Qi Miao
- Department of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - M Eric Gershwin
- Division of Rheumatology, Allergy and Clinical Immunology, School of Medicine, University of California, Davis, Davis, CA, United States
| | - Zhe-Xiong Lian
- Liver Immunology Laboratory, School of Life Sciences, University of Science and Technology of China, Hefei, China.,Chronic Disease Laboratory, School of Medicine, Institutes for Life Sciences, South China University of Technology, Guangzhou, China
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30
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Curran CS, Sharon E. PD-1 immunobiology in autoimmune hepatitis and hepatocellular carcinoma. Semin Oncol 2018; 44:428-432. [PMID: 29935904 DOI: 10.1053/j.seminoncol.2017.12.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 12/21/2017] [Indexed: 02/08/2023]
Abstract
Disruption of liver immune tolerance allows for the development of autoimmune hepatitis (AIH) and hepatocellular carcinoma (HCC). AIH rarely progresses to HCC but the diseases similarly induce the production of IL-18 and matrix metalloproteinases. These molecules have distinct effects on the immune response, including the programmed cell-death 1 (PD-1) axis. In this review, differences in PD-1 function and possible cell signals in AIH and HCC are highlighted.
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Affiliation(s)
- Colleen S Curran
- Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, MD
| | - Elad Sharon
- Cancer Therapy Evaluation Program, Division of Cancer Treatment & Diagnosis, National Cancer Institute, National Institutes of Health, Bethesda, MD.
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31
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Wang PL, Wang J, Zhou Y, Chen XS, Zhou KJ, Wen J, Zhang JJ, Cai W. Expression of programmed death-1 and its ligands in the liver of biliary atresia. World J Pediatr 2017; 13:604-610. [PMID: 28332100 DOI: 10.1007/s12519-017-0018-5] [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: 01/22/2016] [Accepted: 05/20/2016] [Indexed: 11/29/2022]
Abstract
BACKGROUND An aberrant immune response is the predominant pathogenetic factor in biliary atresia (BA). Programmed death-1 (PD-1) and its two ligands, programmed death ligand-1 and programmed death ligand-2 (PD-L1 and PD-L2, respectively) play an important inhibitory role in immune reactions. We aimed to illustrate the expression of these molecules in BA. METHODS Liver specimens were obtained from infants with BA during the Kasai procedure (early BA) and liver transplantation (late BA). Intrahepatic expression of PD- 1, PD-L1, and PD-L2 were examined by immunostaining and compared with that in patients with neonatal hepatitis syndrome and normal controls. The correlation between the expression levels of these molecules in the liver and clinicopathological parameters was analyzed for each group. RESULTS Enhanced expression of PD-1 and its ligands occurred in the livers with early BA. In the BA-affected livers, PD-1 was correlated with the degree of peri-biliary inflammation, while PD-L2 was linked more directly with portal fibrosis. None of the three molecules was correlated with the prognosis of the Kasai procedure in patients with early BA. CONCLUSIONS Only PD-1 and PD-L1 are involved in the immune reactions of early BA. Elucidation of the detailed role of PD-L2 in BA requires further research.
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Affiliation(s)
- Pan-Liang Wang
- Department of Pediatric Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, No. 1665 Kongjiang Road, Yangpu District, Shanghai, 200092, China
| | - Jun Wang
- Department of Pediatric Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, No. 1665 Kongjiang Road, Yangpu District, Shanghai, 200092, China
| | - Ying Zhou
- Department of Pediatric Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, No. 1665 Kongjiang Road, Yangpu District, Shanghai, 200092, China
| | - Xiao-Song Chen
- Department of Transplantation and Hepatic Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Ke-Jun Zhou
- Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, Shanghai, China
| | - Jie Wen
- Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, Shanghai, China
| | - Jian-Jun Zhang
- Department of Transplantation and Hepatic Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Wei Cai
- Department of Pediatric Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, No. 1665 Kongjiang Road, Yangpu District, Shanghai, 200092, China. .,Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, Shanghai, China. .,Shanghai Institute of Pediatric Research, Shanghai, China.
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32
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Li Y, Kilani RT, Pakyari M, Leung G, Nabai L, Ghahary A. Increased expression of PD-L1 and PD-L2 in dermal fibroblasts from alopecia areata mice. J Cell Physiol 2017; 233:2590-2601. [PMID: 28777458 DOI: 10.1002/jcp.26134] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 08/03/2017] [Indexed: 12/21/2022]
Abstract
Alopecia areata (AA) is a common autoimmune disorder affecting millions of people worldwide, which manifests as a sudden, non-scarring hair loss. The expression of a pro-inflammatory cytokine, interferon-gamma (INF-γ), has been well established to be involved in the development of AA. As IFN-γ and other cytokines are also known to up-regulate programmed cell death ligand 1 and 2 (PD-L1 and PD-L2), which both negatively control immune responses, we asked whether or not a high number of infiltrated T cells, seen in AA lesions, can modulate the expression of PD-L1 and PD-L2 in skin cells. From a series of experiments, we showed that a significantly higher number of PD-L1 or PD-L2 positive cells affect the skin in AA mice, compared to the skin of non-AA mice. The number of PD-L1 positive cells was well correlated with the number of infiltrated T cells, especially CD8+ T cells. We also found that the expression of PD-L1 and PD-L2 was co-localized with type 1 pro-collagen, CD90 and vimentin, which are biomarkers for dermal fibroblasts. Further studies revealed that releasable factors from activated, but not inactivated, lymphocytes significantly increase the expressions of both PD-L1 and PD-L2 in cultured dermal fibroblasts. In conclusion, our findings suggest that the expression of PD-L1 and PD-L2 in dermal fibroblasts is up-regulated by activated T cells in AA-affected skin, and as such, these regulatory molecules may not exert a negative control of the immune activation seen in AA lesions.
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Affiliation(s)
- Yunyuan Li
- Department of Surgery, University of British Columbia, Vancouver, British Columbia, Canada
| | - Ruhi T Kilani
- Department of Surgery, University of British Columbia, Vancouver, British Columbia, Canada
| | - Mohammadreza Pakyari
- Department of Surgery, University of British Columbia, Vancouver, British Columbia, Canada
| | - Gigi Leung
- Department of Surgery, University of British Columbia, Vancouver, British Columbia, Canada
| | - Layla Nabai
- Department of Surgery, University of British Columbia, Vancouver, British Columbia, Canada
| | - Aziz Ghahary
- Department of Surgery, University of British Columbia, Vancouver, British Columbia, Canada
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Zhang H, Leung PSC, Gershwin ME, Ma X. How the biliary tree maintains immune tolerance? Biochim Biophys Acta Mol Basis Dis 2017; 1864:1367-1373. [PMID: 28844953 DOI: 10.1016/j.bbadis.2017.08.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 08/03/2017] [Accepted: 08/09/2017] [Indexed: 12/27/2022]
Abstract
The liver is a vital organ with distinctive anatomy, histology and heterogeneous cell populations. These characteristics are of particular importance in maintaining immune homeostasis within the liver microenvironments, notably the biliary tree. Cholangiocytes are the first line of defense of the biliary tree against foreign substances, and are equipped to participate through various immunological pathways. Indeed, cholangiocytes protect against pathogens by TLRs-related signaling; maintain tolerance by expression of IRAK-M and PPARγ; limit immune response by inducing apoptosis of leukocytes; present antigen by expressing human leukocyte antigen molecules and costimulatory molecules; recruit leukocytes to the target site by expressing cytokines and chemokines. However, breach of tolerance in the biliary tree results in various cholangiopathies, exemplified by primary biliary cholangitis, primary sclerosing cholangitis and biliary atresia. Lessons learned from immune tolerance of the biliary tree will provide the basis for the development of effective therapeutic approaches against autoimmune biliary tract diseases. This article is part of a Special Issue entitled: Cholangiocytes in Health and Disease edited by Jesus Banales, Marco Marzioni, Nicholas LaRusso and Peter Jansen.
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Affiliation(s)
- Haiyan Zhang
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University; Shanghai Institute of Digestive Disease; 145 Middle Shandong Road, Shanghai 200001, China
| | - Patrick S C Leung
- Division of Rheumatology, Allergy, and Clinical Immunology, University of California at Davis, Davis, CA, USA
| | - M Eric Gershwin
- Division of Rheumatology, Allergy, and Clinical Immunology, University of California at Davis, Davis, CA, USA
| | - Xiong Ma
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University; Shanghai Institute of Digestive Disease; 145 Middle Shandong Road, Shanghai 200001, China.
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Rao M, Valentini D, Dodoo E, Zumla A, Maeurer M. Anti-PD-1/PD-L1 therapy for infectious diseases: learning from the cancer paradigm. Int J Infect Dis 2017; 56:221-228. [PMID: 28163164 DOI: 10.1016/j.ijid.2017.01.028] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 01/19/2017] [Accepted: 01/22/2017] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVES Immune checkpoint pathways regulate optimal host immune responses against transformed cells, induce immunological memory, and limit tissue pathology. Conversely, aberrant immune checkpoint activity signifies a poor prognosis in cancer and infectious diseases. Host-directed therapy (HDT) via immune checkpoint blockade has revolutionized cancer treatment with therapeutic implications for chronic infections, thus laying the foundation for this review. METHODS Online literature searches were performed via PubMed, PubMed Central, and Google using the keywords "immune checkpoint inhibition"; "host-directed therapy"; "T cell exhaustion"; "cancer immunotherapy"; "anti-PD-1 therapy"; "anti-PD-L1 therapy"; "chronic infections"; "antigen-specific cells"; "tuberculosis"; "malaria"; "viral infections"; "human immunodeficiency virus"; "hepatitis B virus"; "hepatitis C virus"; "cytomegalovirus" and "Epstein-Barr virus". Search results were filtered based on relevance to the topics covered in this review. RESULTS The use of monoclonal antibodies directed against the antigen-experienced T-cell marker programmed cell death 1 (PD-1) and its ligand PD-L1 in the context of chronic infectious diseases is reviewed. The potential pitfalls and precautions, based on clinical experience from treating patients with cancer with PD-1/PD-L1 pathway inhibitors, are also described. CONCLUSIONS Anti-PD-1/PD-L1 therapy holds promise as adjunctive therapy for chronic infectious diseases such as tuberculosis and HIV, and must therefore be tested in randomized clinical trials.
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Affiliation(s)
- Martin Rao
- Division of Therapeutic Immunology (TIM), Department of Laboratory Medicine (LABMED), Karolinska Institutet, Stockholm, Sweden
| | - Davide Valentini
- Division of Therapeutic Immunology (TIM), Department of Laboratory Medicine (LABMED), Karolinska Institutet, Stockholm, Sweden; Centre for Allogeneic Stem Cell Transplantation (CAST), Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Ernest Dodoo
- Division of Therapeutic Immunology (TIM), Department of Laboratory Medicine (LABMED), Karolinska Institutet, Stockholm, Sweden; Department of Neurosurgery, Karolinska University Hospital, Stockholm, Sweden
| | - Alimuddin Zumla
- Division of Infection and Immunity, University College London, and NIHR Biomedical Research Centre, UCL Hospitals NHS Foundation Trust, London, UK
| | - Markus Maeurer
- Division of Therapeutic Immunology (TIM), Department of Laboratory Medicine (LABMED), Karolinska Institutet, Stockholm, Sweden; Centre for Allogeneic Stem Cell Transplantation (CAST), Karolinska University Hospital Huddinge, Stockholm, Sweden.
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Gil-Farina I, Di Scala M, Salido E, López-Franco E, Rodríguez-García E, Blasi M, Merino J, Aldabe R, Prieto J, Gonzalez-Aseguinolaza G. Transient Expression of Transgenic IL-12 in Mouse Liver Triggers Unremitting Inflammation Mimicking Human Autoimmune Hepatitis. THE JOURNAL OF IMMUNOLOGY 2016; 197:2145-2156. [DOI: 10.4049/jimmunol.1600228] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Abstract
Abstract
The etiopathogenesis of autoimmune hepatitis (AIH) remains poorly understood. In this study, we sought to develop an animal model of human AIH to gain insight into the immunological mechanisms driving this condition. C57BL/6 mice were i.v. injected with adeno-associated viral vectors encoding murine IL-12 or luciferase under the control of a liver-specific promoter. Organ histology, response to immunosuppressive therapy, and biochemical and immunological parameters, including Ag-specific humoral and cellular response, were analyzed. Mechanistic studies were carried out using genetically modified mice and depletion of lymphocyte subpopulations. Adeno-associated virus IL-12–treated mice developed histological, biochemical, and immunological changes resembling type 1 AIH, including marked and persistent liver mononuclear cell infiltration, hepatic fibrosis, hypergammaglobulinemia, anti-nuclear and anti–smooth muscle actin Abs, and disease remission with immunosuppressive drugs. Interestingly, transgenic IL-12 was short-lived, but endogenous IL-12 expression was induced, and both IL-12 and IFN-γ remained elevated during the entire study period. IFN-γ was identified as an essential mediator of liver damage, and CD4 and CD8 T cells but not NK, NKT, or B cells were essential executors of hepatic injury. Furthermore, both MHC class I and MHC class II expression was upregulated at the hepatocellular membrane, and induction of autoreactive liver-specific T cells was detected. Remarkably, although immunoregulatory mechanisms were activated, they only partially mitigated liver damage. Thus, low and transient expression of transgenic IL-12 in hepatocytes causes loss of tolerance to hepatocellular Ags, leading to chronic hepatitis resembling human AIH type 1. This model provides a practical tool to explore AIH pathogenesis and novel therapies.
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Affiliation(s)
- Irene Gil-Farina
- *Gene Therapy and Regulation of Gene Expression Program, Center for Applied Medical Research, Health Research Institute of Navarra, 31008 Pamplona, Spain
| | - Marianna Di Scala
- *Gene Therapy and Regulation of Gene Expression Program, Center for Applied Medical Research, Health Research Institute of Navarra, 31008 Pamplona, Spain
| | - Eduardo Salido
- †Unidad de Investigación Mixta Hospital Universitario de Canarias–Universidad de La Laguna, Facultad de Medicina, Universidad de La Laguna, 38071 Santa Cruz de Tenerife, Spain; and
| | - Esperanza López-Franco
- *Gene Therapy and Regulation of Gene Expression Program, Center for Applied Medical Research, Health Research Institute of Navarra, 31008 Pamplona, Spain
| | - Estefania Rodríguez-García
- *Gene Therapy and Regulation of Gene Expression Program, Center for Applied Medical Research, Health Research Institute of Navarra, 31008 Pamplona, Spain
| | - Mercedes Blasi
- *Gene Therapy and Regulation of Gene Expression Program, Center for Applied Medical Research, Health Research Institute of Navarra, 31008 Pamplona, Spain
| | - Juana Merino
- ‡University Clinic of Navarra, University of Navarra, 31008 Pamplona, Spain
| | - Rafael Aldabe
- *Gene Therapy and Regulation of Gene Expression Program, Center for Applied Medical Research, Health Research Institute of Navarra, 31008 Pamplona, Spain
| | - Jesús Prieto
- *Gene Therapy and Regulation of Gene Expression Program, Center for Applied Medical Research, Health Research Institute of Navarra, 31008 Pamplona, Spain
- ‡University Clinic of Navarra, University of Navarra, 31008 Pamplona, Spain
| | - Gloria Gonzalez-Aseguinolaza
- *Gene Therapy and Regulation of Gene Expression Program, Center for Applied Medical Research, Health Research Institute of Navarra, 31008 Pamplona, Spain
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Zamani MR, Aslani S, Salmaninejad A, Javan MR, Rezaei N. PD-1/PD-L and autoimmunity: A growing relationship. Cell Immunol 2016; 310:27-41. [PMID: 27660198 DOI: 10.1016/j.cellimm.2016.09.009] [Citation(s) in RCA: 196] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 09/14/2016] [Accepted: 09/15/2016] [Indexed: 12/20/2022]
Abstract
Programmed death 1 (PD-1) and its ligands, namely PD-L1 and PD-L2, are one of the key factors responsible for inhibitory T cell signaling, mediating the mechanisms of tolerance and providing immune homeostasis. Mounting evidence demonstrates that impaired PD-1:PD-L function plays an important role in a variety of autoimmune diseases such as Type 1 diabetes (T1D), encephalomyelitis, inflammatory bowel diseases (IBD), Rheumatoid Arthritis (RA), autoimmune hepatitis (AIH), Behcet's disease (BD), myasthenia gravis (MG), autoimmune uveitis (AU), Sjögren's syndrome (SjS), systemic lupus erythematosus (SLE), systemic sclerosis (SSc), myocarditis, and ankylosing spondylitis (AS). By investigating the candidate genes, genome-wide association studies, and identification of single nucleotide polymorphisms (SNPs) in PD-1 gene in humans, it has been shown that there is a higher risk in relevant genetic associations with developing autoimmune diseases in certain ethnic groups. In this review we have tried to present a comprehensive role of PD-1:PD-L in all recently studied autoimmune diseases.
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Affiliation(s)
- Mohammad Reza Zamani
- Department of Immunology and Biology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Saeed Aslani
- Department of Immunology and Biology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Arash Salmaninejad
- Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran; Student Research Committee, Medical Genetics Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Reza Javan
- Department of Immunology, Faculty of Medicine, Zabol University of Medical Sciences, Zabol, Iran
| | - Nima Rezaei
- Department of Immunology and Biology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran; Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran.
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Mousa HS, Carbone M, Malinverno F, Ronca V, Gershwin ME, Invernizzi P. Novel therapeutics for primary biliary cholangitis: Toward a disease-stage-based approach. Autoimmun Rev 2016; 15:870-6. [DOI: 10.1016/j.autrev.2016.07.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Accepted: 06/01/2016] [Indexed: 12/22/2022]
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Enhancement of Programmed Death Ligand 2 on Hepatitis C Virus Infected Hepatocytes by Calcineurin Inhibitors. Transplantation 2016; 99:1447-54. [PMID: 25675203 PMCID: PMC4539199 DOI: 10.1097/tp.0000000000000572] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Post orthotopic liver transplantation (OLT) viral hepatitis is an immunological condition where immune cells induce hepatitis during conditions of immune-suppression. The immune-regulatory programmed death-1 (PD-1)/PD-ligand 1 system is acknowledged to play important roles in immune-mediated diseases. However, the PD-1/PD-L2 interaction is not well characterized, with PD-L2 also exhibiting an immunostimulatory function. We hypothesized that this atypical molecule could affect the recurrence of post-OLT hepatitis. To test this hypothesis, we conducted immunohistochemical staining analysis and in vitro analysis of PD-L2. Translational study of before and after liver transplantation for hepatitis B and C shows that calcineurin inhibitors (CNI) increase the expression of functional programmed death-1 on hepatocytes. The results suggest an important contribution of CNI on post transplant hepatitis occurrence and severity.
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Zhang AP, Yang JH. Advances in understanding pathogenesis of primary biliary cholangitis. Shijie Huaren Xiaohua Zazhi 2016; 24:169-175. [DOI: 10.11569/wcjd.v24.i2.169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Primary biliary cholangitis (PBC) is an autoimmune liver disease characterized by chronic and progressive cholestasis. In recent years, the incidence and prevalence of PBC are increasing year by year. However, the etiology and pathogenesis are not fully understood. It is believed that genetic susceptibility, environmental factors, and immunologic tolerance are related with the pathogenesis of PBC. This article reviews the progress in the understanding of the pathogenesis of PBC.
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Hiraide-Sasagawa A, Hiroishi K, Shimazaki T, Eguchi J, Ishii S, Morikawa K, Sakaki M, Doi H, Omori R, Kajiwara A, Hayashi E, Shiina M, Hirayama Y, Imawari M. Increased expression of immuno-inhibitory molecules on peripheral blood lymphocytes may suppress disease progression in autoimmune hepatitis. Hepatol Res 2015; 45:1152-4. [PMID: 25581267 DOI: 10.1111/hepr.12479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Revised: 01/05/2015] [Accepted: 01/06/2015] [Indexed: 02/08/2023]
Affiliation(s)
- Ayako Hiraide-Sasagawa
- Division of Gastroenterology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan.,Koyama Central Clinic, Tokyo, Japan
| | - Kazumasa Hiroishi
- Department of Gastroenterology, Shin-yurigaoka General Hospital, Kawasaki, Japan
| | - Tomoe Shimazaki
- Division of Gastroenterology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Junichi Eguchi
- Division of Gastroenterology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Shigeaki Ishii
- Department of Gastroenterology, Shin-yurigaoka General Hospital, Kawasaki, Japan
| | - Kenichi Morikawa
- Division of Gastroenterology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Masashi Sakaki
- Division of Gastroenterology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Hiroyoshi Doi
- Division of Gastroenterology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Risa Omori
- Division of Gastroenterology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Atsushi Kajiwara
- Division of Gastroenterology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Eiichi Hayashi
- Division of Gastroenterology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Masaaki Shiina
- Department of Gastroenterology, Shin-yurigaoka General Hospital, Kawasaki, Japan
| | - Yuichi Hirayama
- Department of Gastroenterology, Shin-yurigaoka General Hospital, Kawasaki, Japan
| | - Michio Imawari
- Division of Gastroenterology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan.,Department of Gastroenterology, Shin-yurigaoka General Hospital, Kawasaki, Japan
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Hu S, Zhao F, Wang Q, Chen WX. The accuracy of the anti-mitochondrial antibody and the M2 subtype test for diagnosis of primary biliary cirrhosis: a meta-analysis. Clin Chem Lab Med 2015; 52:1533-42. [PMID: 24501161 DOI: 10.1515/cclm-2013-0926] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Accepted: 01/07/2014] [Indexed: 12/14/2022]
Abstract
The aim of this study was to evaluate the diagnostic value of anti-mitochondrial antibodies (AMAs) and/or the M2 subtype (AMA-M2) in patients with primary biliary cirrhosis (PBC). AMA/AMA-M2 data were obtained by searching electronic databases. Studies showing AMA/AMA-M2 results in patients with PBC and control groups with other liver diseases or healthy livers were included. The quality of the involved studies was assessed using the QUADAS tool. The pooled sensitivity and specificity were calculated, and stratified analysis was performed according to possible heterogeneity sources. The pooled AMA (all methods) sensitivity and specificity were 84.5% (95% confidence interval (CI) 83.3%-85.6%) and 97.8% (95% CI 97.6%-98.0%), respectively. The positive and negative likelihood ratios were 25.201 (95% CI 17.583-36.118) and 0.162 (95% CI 0.131-0.199), respectively. The current evidence suggests that AMA and AMA-M2 show favorable accuracy for the diagnosis of PBC with high specificity and sensitivity. AMA is a better and more comprehensive marker than AMA-M2. The accuracy established in this meta-analysis is based on clinical studies using patient cohorts from different ethnicities.
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The immunophysiology and apoptosis of biliary epithelial cells: primary biliary cirrhosis and primary sclerosing cholangitis. Clin Rev Allergy Immunol 2013; 43:230-41. [PMID: 22689287 DOI: 10.1007/s12016-012-8324-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Biliary epithelial cells (BECs) provide the first line of defense against lumenal microbes in the biliary system. BECs express a variety of pathogen recognition receptors and can activate several intracellular signaling cascades to initiate antimicrobial defenses, including production of several anti-microbial peptides, cytokines, chemokines, and adhesion molecules. BECs also secrete immunoglobulin A and interact with other cells through expression and release of adhesion molecules and immune mediators. Recently, several reports suggest a correlation between apoptosis and autoimmunity through ineffective clearance of self-antigens. Primary biliary cirrhosis (PBC) is a slowly progressive, autoimmune cholestatic liver disease characterized by highly specific antimitochondrial antibodies (AMAs) and the specific immune-mediated destruction of BECs. We have demonstrated that the AMA self-antigen, namely the E2 subunit of the pyruvate dehydrogenase complex, is detectable in its antigenically reactive form within apoptotic blebs from human intrahepatic biliary epithelial cells and activates innate immune responses. Primary sclerosing cholangitis (PSC) is a chronic cholestatic liver disease characterized by inflammation and the presence of concentric fibrosis of intrahepatic and/or extrahepatic bile ducts, eventually leading to cirrhosis. However, apoptosis does not appear to play a central role in PSC. Despite both diseases involving immune-mediated injury to bile ducts, apoptosis occurs more commonly overall in PBC where it likely plays a unique role.
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Hamid O, Carvajal RD. Anti-programmed death-1 and anti-programmed death-ligand 1 antibodies in cancer therapy. Expert Opin Biol Ther 2013; 13:847-61. [DOI: 10.1517/14712598.2013.770836] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Omid Hamid
- The Angeles Clinic and Research Institute, Melanoma Center, 11818 Wilshire Blvd., Los Angeles, CA 90025, USA ;
| | - Richard D Carvajal
- Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10021, USA
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Gómez-Aristizábal A, Ng C, Ng J, Davies JE. Effects of two mesenchymal cell populations on hepatocytes and lymphocytes. Liver Transpl 2012; 18:1384-94. [PMID: 22753359 DOI: 10.1002/lt.23500] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The inflammatory response to liver injury plays an important role in the onset of liver fibrosis, which may ultimately lead to liver failure. The attenuation of inflammation and hepatocyte rescue are, therefore, of the utmost importance for recovery. Mesenchymal stromal cells (MSCs) from adult bone marrow have been shown to rescue hepatocyte function. Here we explore a more plentiful source of neonatal MSCs: human umbilical cord perivascular cells (HUCPVCs). We cocultured HUCPVCs or bone marrow-derived mesenchymal stromal cells (BM-MSCs) with rat hepatocytes or human peripheral blood mononuclear cells in order to identify their effects on hepatocyte functionality and the proliferation of phytohemagglutinin-stimulated peripheral blood mononuclear cells (phaPBMCs). The expression of hepatotrophic factors by both types of MSCs in the presence of hepatocytes and the functional implications of blocking putative MSC anti-inflammatory factors were compared. Both types of MSCs improved albumin secretion, ureagenesis, hepatospecific gene expression, cytochrome P450 (CYP) activity, and functional hepatocyte mass maintenance. However, although HUCPVCs had an improved effect on the maintenance of ureagenesis, BM-MSCs had a strong effect on hepatocyte CYP activity. Additionally, each MSC type differentially expressed putative hepatotrophic factors, whereas phaPBMC proliferation was significantly decreased. Indoleamine 2,3-dioxygenase (IDO) was the main immunosuppressive mechanism used by both types of MSCs, but HUCPVCs exhibited higher expression of programmed death 1 ligands. However, the functional significance of the difference in anti-inflammatory factor expression still remains to be elucidated. Thus, both MSC types can serve as hepatocyte stromal cells and mitigate inflammation with IDO, but they present differences in the manner in which they affect hepatocytes and in the expression of both hepatotrophic and anti-inflammatory factors.
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Sun L, Hurez VJ, Thibodeaux SR, Kious MJ, Liu A, Lin P, Murthy K, Pandeswara S, Shin T, Curiel TJ. Aged regulatory T cells protect from autoimmune inflammation despite reduced STAT3 activation and decreased constraint of IL-17 producing T cells. Aging Cell 2012; 11:509-19. [PMID: 22372596 DOI: 10.1111/j.1474-9726.2012.00812.x] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Regulatory T cells (Tregs) are specialized CD4(+) T lymphocytes helping defend against autoimmunity and inflammation. Although age is associated with increased inflammation and autoimmunity, few reports address age effects of immune regulation or auto-aggressive T cells. We show here that young and aged naïve CD4(+) T cells are equivalently auto-aggressive in vivo in T cell-driven autoimmune colitis. Young and aged CD4(+) Tregs equally suppressed age-matched T cell proliferation in vitro and controlled clinical and pathologic T cell-driven autoimmune colitis, suggesting equivalent regulatory function. However, whereas young and aged CD4(+) Tregs suppressed interferon (IFN)-γ(+) T cells equivalently in this model, aged CD4(+) Tregs unexpectedly failed to restrain interleukin (IL)-17(+) T cells. Nonetheless, young and aged CD4(+) Tregs equally restrained IL-17(+) T cells in vivo during acute inflammation, suggesting a chronic inflammation-related defect in aged CD4(+) Tregs. In support, aged Tregs expressed reduced STAT3 activation, a defect associated with poor IL-17-producing T cell restraint. Aged naïve mice had markedly increased programmed death (PD)-1(+) T cells, but these exhibited no significant auto-aggressive or regulatory functions in T cell-driven colitis. Young CD8(+) CD122(-) T cells induce autoimmune bone marrow failure, but we show that aged CD8(+) CD122(-) T cells do not. These data demonstrate no apparent age-related increase in auto-aggressive T cell behavior, but disclose previously unrecognized functional defects in aged CD4(+) Tregs during chronic inflammation. IL-17 can be inflammatory and contributes to certain autoimmune disorders. Reduced aged Treg function during chronic inflammation and reduced IL-17 restraint could contribute to age-related inflammation or autoimmunity.
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Affiliation(s)
- Lishi Sun
- Department of Medicine, Cancer Therapy and Research Center, The University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
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Zhou CB, Li ZW. Progress in understanding the role of PD-1/PD-L1 signaling pathway in the immunoregulation of HBV infection. Shijie Huaren Xiaohua Zazhi 2011; 19:2752-2759. [DOI: 10.11569/wcjd.v19.i26.2752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Programmed cell death-1 (PD-1) is an inhibitory co-stimulatory molecule belonging to the CD28 family. It plays an important role in the maintenance of immune tolerance through binding to its ligands. Recent studies showed that the PD-1/PD-1 ligand 1 (PD-L1) pathway played an essential role in the development of chronic viral infection, autoimmune diseases and tumor immunity. Manipulating this pathway may have possible clinical applications to HBV treatment. This article will review the recent progress in understanding the role of PD-1/PD-L1 signaling pathway in the immunoregulation of HBV infection.
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47
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Yuan L, Li ZW. Involvement of the PD-1/PD-L pathway in outcome of hepatitis B virus infection. Shijie Huaren Xiaohua Zazhi 2011; 19:1051-1056. [DOI: 10.11569/wcjd.v19.i10.1051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Programmed death 1 (PD-1) is a costimulatory molecule which can be expressed on T cells. PD-1 and its ligands (PD-Ls) have been demonstrated to be able to inhibit the effector functions of T cells and even result in T cell function. Recently, many studies have demonstrated that the activation of the PD-1/PD-L pathway may affect the outcome of HBV infection. Blockade of the PD-1/PD-L pathway may enhance body's immune responses, which provides a new avenue for therapy of chronic hepatitis B.
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Ke Y, Sun D, Jiang G, Kaplan HJ, Shao H. PD-L1(hi) retinal pigment epithelium (RPE) cells elicited by inflammatory cytokines induce regulatory activity in uveitogenic T cells. J Leukoc Biol 2010; 88:1241-9. [PMID: 20739617 DOI: 10.1189/jlb.0610332] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
We previously reported that after exposure to inflammatory cytokines, such as IL-17 and IFN-γ, RPE cells express increased amounts of suppressor of cytokine signaling, leading to general suppression of the inflammatory response. Here, we demonstrate that RPE cells expressed increased levels of PD-L1 in response to IL-17, IFN-γ, or Poly I:C. These PD-L1(hi) RPE cells inhibited the pathogenic activities of IRBP-specific T cells, which usually induced uveitis when injected into naïve mice (EAU). The suppressed pathogenicity of these uveitogenic T cells after exposure to PD-L1(hi) RPE cells could be partially reversed by anti-PD-L1 antibodies. Nevertheless, IRBP-specific T cells pre-exposed to PD-L1(hi) RPE cells displayed substantial suppressor activity, which strongly inhibited the activation of fresh IRBP-Teffs in response to subsequent antigenic challenge and when transferred into naïve mice, inhibited the induction of EAU by IRBP-Teff transfer. These findings suggest that inflammatory cytokine-triggered up-regulation of PD-L1 on RPE constitutes a critical factor for inducing infiltrated uveitogenic T cells with regulatory activities, which may accelerate the natural resolution of T cell-mediated intraocular inflammation.
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Affiliation(s)
- Yan Ke
- Department of Ophthalmology and Vision Sciences, University of Louisville, 301 E. Muhammad Ali Blvd., Louisville, KY 40202, USA.
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Chen J, Wang XM, Wu XJ, Wang Y, Zhao H, Shen B, Wang GQ. Intrahepatic levels of PD-1/PD-L correlate with liver inflammation in chronic hepatitis B. Inflamm Res 2010; 60:47-53. [PMID: 20661763 DOI: 10.1007/s00011-010-0233-1] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2009] [Revised: 06/04/2010] [Accepted: 06/28/2010] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND AND OBJECTIVE Programmed cell death-1 (PD-1) represents a mechanism of T-cell dysfunction in hepatitis B virus (HBV) persistence. In peripheral blood, PD-1 is up-regulated in virus-specific T cells, leading to the impairment of T cells. This study investigated the intrahepatic expression of PD-1 and its ligand (PD-L) in patients with chronic hepatitis B (CHB) virus. METHODS Liver specimens were obtained from CHB (n = 56), acute hepatitis B (AHB, n = 12) patients and age-matched healthy subjects (n = 10). The expression of PD-1/PD-L was determined by immunohistochemistry. RESULTS In CHB patients, PD-1 was predominantly expressed in lymphocytes infiltrating the portal tract. PD-L1 was detected in lymphocytes, hepatocytes and liver sinusoidal endothelial cells, while PD-L2 was localized in Kupffer cells and dendritic cells. The labeling indexes of PD-1 and PD-L1 in lymphocytes infiltrating portal area were significantly higher in CHB patients than in healthy controls and AHB patients. Within the CHB patients, the increases in labeling indexes of PD-1 and PD-L paralleled the degree of inflammation. CONCLUSIONS These results suggest that over-expression of PD-1, PD-L1 and PD-L2 within liver may participate in local immune dysfunction, which could be one of the mechanisms involved in the chronicity of HBV infection and chronic inflammation seen in CHB patients.
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Affiliation(s)
- Ji Chen
- Department of Infectious Diseases, Peking University First Hospital, No 8, Xishiku Street, Xicheng District, Beijing 100034, People's Republic of China
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Abstract
Despite recent progress, the pathogenic mechanisms governing PBC development, treatment response and outcome remain unknown. This deficiency is in large part due to the complex nature of PBC, wherein various environmental factors may be capable of prompting disease, but only in the context of underlying genetic susceptibility. Identification of genomic loci containing these heritable risk factors has been slowed by the rarity and late onset of PBC, which has made difficult the collection of sufficient numbers of patients and family members for meaningful genetic analyses. Advancements in our ability to catalog the genetic variation in large numbers of individuals at a genome-wide scale, coupled with unprecedented efforts to recruit PBC patients for genetic study, positions us to generate data that could fundamentally change our understanding of PBC and lead to clinical innovation. Indeed, the first genome-wide association study for PBC has been published, in which multiple genes involved with IL12 signaling, a pathway that is being targeted in treatment of other inflammatory conditions, were implicated in disease. However, this study was relatively small in the genome-wide milieu and a significantly expanded effort will be necessary to truly elucidate the genetic architecture of PBC. Moving ahead, cooperation between the groups collecting biospecimens and generating genome-wide data from large numbers of patients with PBC will be essential, not only to increase power for fine mapping and future studies of rare variants and epistasis; but to streamline efforts to perform functional validation of novel discoveries. Here we provide a brief update of the current state of genetics in PBC to form a basis for understanding the considerable progress that is likely to be made in the coming years.
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Affiliation(s)
- Brian D Juran
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine, 200 First Street SW, Rochester, Minnesota 55905, USA.
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