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Huang H, Mu Y, Li S. The biological function of Serpinb9 and Serpinb9-based therapy. Front Immunol 2024; 15:1422113. [PMID: 38966643 PMCID: PMC11222584 DOI: 10.3389/fimmu.2024.1422113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Accepted: 06/10/2024] [Indexed: 07/06/2024] Open
Abstract
Recent breakthroughs in discovering novel immune signaling pathways have revolutionized different disease treatments. SERPINB9 (Sb9), also known as Proteinase Inhibitor 9 (PI-9), is a well-known endogenous inhibitor of Granzyme B (GzmB). GzmB is a potent cytotoxic molecule secreted by cytotoxic T lymphocytes and natural killer cells, which plays a crucial role in inducing apoptosis in target cells during immune responses. Sb9 acts as a protective mechanism against the potentially harmful effects of GzmB within the cells of the immune system itself. On the other hand, overexpression of Sb9 is an important mechanism of immune evasion in diseases like cancers and viral infections. The intricate functions of Sb9 in different cell types represent a fine-tuned regulatory mechanism for preventing immunopathology, protection against autoimmune diseases, and the regulation of cell death, all of which are essential for maintaining health and responding effectively to disease challenges. Dysregulation of the Sb9 will disrupt human normal physiological condition, potentially leading to a range of diseases, including cancers, inflammatory conditions, viral infections or other pathological disorders. Deepening our understanding of the role of Sb9 will aid in the discovery of innovative and effective treatments for various medical conditions. Therefore, the objective of this review is to consolidate current knowledge regarding the biological role of Sb9. It aims to offer insights into its discovery, structure, functions, distribution, its association with various diseases, and the potential of nanoparticle-based therapies targeting Sb9.
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Affiliation(s)
- Haozhe Huang
- Department of Pharmaceutical Sciences, University of Pittsburgh School of Pharmacy, Pittsburgh, PA, United States
- University of Pittsburgh Medical Center (UPMC) Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA, United States
| | - Yiqing Mu
- Department of Pharmaceutical Sciences, University of Pittsburgh School of Pharmacy, Pittsburgh, PA, United States
- University of Pittsburgh Medical Center (UPMC) Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA, United States
| | - Song Li
- Department of Pharmaceutical Sciences, University of Pittsburgh School of Pharmacy, Pittsburgh, PA, United States
- University of Pittsburgh Medical Center (UPMC) Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA, United States
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2
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Xu H, Wei Z, Chen B, Wang J, Weng H, Li J, Yang X, Zhao S. Granzyme B PET imaging inflammation and remodeling in myocardial infarction. Eur J Nucl Med Mol Imaging 2024; 51:991-1001. [PMID: 37991527 DOI: 10.1007/s00259-023-06521-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 11/13/2023] [Indexed: 11/23/2023]
Abstract
PURPOSE This study aimed to evaluate whether granzyme B (GzmB)-targeted positron emission tomography (PET) imaging agent (68 Ga-grazytracer) can characterize cardiac inflammation and remodeling in myocardial infarction (MI). METHODS Rats with MI were subjected to GzmB-targeted PET/CT on post-operative days 1, 3, 6, 14, and 28. Autoradiography, Masson staining, immunohistochemistry, and ELISA were performed to verify the inflammatory response and remodeling after MI in vitro. Rats were treated with GzmB inhibitor Z-IETD-FMK to improve cardiac remodeling. Cardiac function tests were performed by echocardiography at 6 weeks after MI. RESULTS The highest uptake of 68 Ga-grazytracer was observed on day 3 after MI compared with the values obtained on the other days (0.294 ± 0.03% ID/g at 3 days vs. 0.122 ± 0.01% ID/g in the sham group, P < 0.001). Immunohistochemistry showed significantly high expression of GzmB and CD8, in line with the PET/CT imaging results. Autoradiography revealed 68 Ga-grazytracer accumulation in the infarcted myocardium. The 68 Ga-grazytracer uptake of treated rats was significantly reduced compared with that in the MI groups (0.184 ± 0.03%ID/g vs. 0.286 ± 0.03%ID/g; P < 0.001). Echocardiography showed that the left ventricular ejection fraction was lower in the MI groups than in the ischemia reperfusion group. GzmB inhibitor treatment was shown to be effective in improving cardiac function without significantly shortening infarct size. CONCLUSIONS This study demonstrated the potential of 68 Ga-grazytracer imaging to delineate adverse inflammatory responses and pathological cardiac remodeling, which can help predict heart function. PET/CT imaging-guided therapy may reduce myocardial injury and improve heart function in MI.
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Affiliation(s)
- Hongchuang Xu
- Department of Nuclear Medicine, Peking University First Hospital, Xishiku Rd 8, Xicheng District, Beijing, 100034, China
| | - Zhuxin Wei
- Department of MRI, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishi Rd 167, Xicheng District, Beijing, 100037, China
| | - Bixi Chen
- Department of Nuclear Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, China
| | - Jiaxin Wang
- Department of MRI, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishi Rd 167, Xicheng District, Beijing, 100037, China
| | - Haoyu Weng
- Department of Cardiology, Peking University First Hospital, Xishiku Rd 8, Xicheng District, Beijing, 100034, China
| | - Jianping Li
- Department of Cardiology, Peking University First Hospital, Xishiku Rd 8, Xicheng District, Beijing, 100034, China.
| | - Xing Yang
- Department of Nuclear Medicine, Peking University First Hospital, Xishiku Rd 8, Xicheng District, Beijing, 100034, China.
- Department of Central Laboratory, Peking University First Hospital, Beijing, 100034, China.
| | - Shihua Zhao
- Department of MRI, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishi Rd 167, Xicheng District, Beijing, 100037, China.
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Wang S, Chang CW, Huang J, Zeng S, Zhang X, Hung MC, Hou J. Gasdermin C sensitizes tumor cells to PARP inhibitor therapy in cancer models. J Clin Invest 2024; 134:e166841. [PMID: 37883181 PMCID: PMC10760963 DOI: 10.1172/jci166841] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 10/23/2023] [Indexed: 10/27/2023] Open
Abstract
Several poly (ADP-ribose) polymerase (PARP) inhibitors (PARPi) are approved by FDA to treat cancer with BRCA mutations. BRCA mutations are considered to fuel a PARPi killing effect by inducing apoptosis. However, resistance to PARPi is frequently observed in the clinic due to an incomplete understanding on the molecular basis of PARPi function and a lack of good markers, beyond BRCA mutations, to predict response. Here, we show that gasdermin C (GSDMC) sensitized tumor cells to PARPi in vitro and in immunocompetent mice and caused durable tumor regression in an immune-dependent manner. A high expression level of GSDMC predicted better response to PARPi treatment in patients with triple-negative breast cancer (TNBC). PARPi treatment triggered GSDMC/caspase-8-mediated cancer cell pyroptosis (CCP) that enhanced PARPi killing of tumor cells. GSDMC-mediated CCP increased memory CD8+ T cell population in lymph node (LN), spleen, and tumor and, thus, promoted cytotoxic CD8+ T cell infiltration in the tumor microenvironment. T cell-derived granzyme B (GZMB) activated caspase-6, which subsequently cleaved GSDMC to induce pyroptosis. Interestingly, IFN-γ induced GSDMC expression, which, in turn, enhanced the cytotoxicity of PARPi and T cells. Importantly, GSDMC promoted tumor clearance independent of BRCA deficiency in multiple cancer types with PARPi treatment. This study identifies a general marker and target for PARPi therapy and offers insights into the mechanism of PARPi function.
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Affiliation(s)
- Shuanglian Wang
- Department of Otolaryngology Head and Neck Surgery
- Xiangya Cancer Center, and
- Center for Molecular Oncology and Immunology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Otolaryngology Major Disease Research Key Laboratory of Hunan Province, Changsha, Hunan, China
- Clinical Research Center for Pharyngolaryngeal Diseases and Voice Disorders in Hunan Province, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Chiung-Wen Chang
- Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan
| | - Juan Huang
- Department of General Surgery, Xiangya Hospital, Central South University, Clinical Research Center For Breast Cancer in Hunan Province, Changsha, Hunan, China
| | - Shan Zeng
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xin Zhang
- Department of Otolaryngology Head and Neck Surgery
- Xiangya Cancer Center, and
- Otolaryngology Major Disease Research Key Laboratory of Hunan Province, Changsha, Hunan, China
- Clinical Research Center for Pharyngolaryngeal Diseases and Voice Disorders in Hunan Province, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Mien-Chie Hung
- Graduate Institute of Biomedical Sciences, Institute of Biochemistry and Molecular Biology, Research Center for Cancer Biology, Cancer Biology and Precision Therapeutics Center, and Center for Molecular Medicine, China Medical University, Taichung, Taiwan
- Department of Biotechnology, Asia University, Taichung, Taiwan
| | - Junwei Hou
- Department of Otolaryngology Head and Neck Surgery
- Xiangya Cancer Center, and
- Center for Molecular Oncology and Immunology, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
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Duquette D, Harmon C, Zaborowski A, Michelet X, O'Farrelly C, Winter D, Koay HF, Lynch L. Human Granzyme K Is a Feature of Innate T Cells in Blood, Tissues, and Tumors, Responding to Cytokines Rather than TCR Stimulation. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 211:633-647. [PMID: 37449888 DOI: 10.4049/jimmunol.2300083] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 06/02/2023] [Indexed: 07/18/2023]
Abstract
NK cells and CD8 T cells use cytotoxic molecules to kill virally infected and tumor cell targets. While perforin and granzyme B (GzmB) are the most commonly studied lytic molecules, less is known about granzyme K (GzmK). However, this granzyme has been recently associated with improved prognosis in solid tumors. In this study, we show that, in humans, GzmK is predominantly expressed by innate-like lymphocytes, as well as a newly identified population of GzmK+CD8+ non- mucosal-associated invariant T cells with innate-like characteristics. We found that GzmK+ T cells are KLRG1+EOMES+IL-7R+CD62L-Tcf7int, suggesting that they are central memory T and effector memory T cells. Furthermore, GzmK+ cells are absent/low in cord blood, suggesting that GzmK is upregulated with immune experience. Surprisingly, GzmK+ cells respond to cytokine stimuli alone, whereas TCR stimulation downregulates GzmK expression, coinciding with GzmB upregulation. GzmK+ cells have reduced IFN-γ production compared with GzmB+ cells in each T cell lineage. Collectively, this suggests that GzmK+ cells are not naive, and they may be an intermediate memory-like or preterminally differentiated population. GzmK+ cells are enriched in nonlymphoid tissues such as the liver and adipose. In colorectal cancer, GzmK+ cells are enriched in the tumor and can produce IFN-γ, but GzmK+ expression is mutually exclusive with IL-17a production. Thus, in humans, GzmK+ cells are innate memory-like cells that respond to cytokine stimulation alone and may be important effector cells in the tumor.
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Affiliation(s)
- Danielle Duquette
- School of Biochemistry and Immunology, Trinity College Dublin, Dublin, Ireland
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women's Hospital, Boston, MA
| | - Cathal Harmon
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women's Hospital, Boston, MA
| | | | - Xavier Michelet
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women's Hospital, Boston, MA
| | - Cliona O'Farrelly
- School of Biochemistry and Immunology, Trinity College Dublin, Dublin, Ireland
| | - Des Winter
- St. Vincent's University Hospital, Dublin, Ireland
| | - Hui-Fern Koay
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women's Hospital, Boston, MA
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, Victoria, Austria
| | - Lydia Lynch
- School of Biochemistry and Immunology, Trinity College Dublin, Dublin, Ireland
- St. Vincent's University Hospital, Dublin, Ireland
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Dawodu D, Sand S, Nikolouli E, Werfel T, Mommert S. The mRNA expression and secretion of granzyme B are up-regulated via the histamine H2 receptor in human CD4 + T cells. Inflamm Res 2023; 72:1525-1538. [PMID: 37470818 PMCID: PMC10499701 DOI: 10.1007/s00011-023-01759-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 06/01/2023] [Accepted: 06/09/2023] [Indexed: 07/21/2023] Open
Abstract
INTRODUCTION Granzyme B (GZMB), a serine protease with cytotoxic and immunomodulatory functions, shows elevated levels in blood plasma of patients with atopic dermatitis (AD). It has been observed that GZMB expression in CD4+ and CD8+ T cells is higher in lesional skin in AD than in healthy skin. Since histamine is present in high concentration in the skin of AD patients, we investigated the regulation of GZMB in human CD4+ T cells by histamine. METHODS Naïve CD4+ T cells polarized into Th2 cells, total CD4+ T cells treated with IL-4 for 72 h and CD4+ T cells isolated from healthy donors and AD patients were investigated. The cells were stimulated with histamine or with different histamine-receptor agonists. Gene expression was evaluated by RNA-Seq. GZMB mRNA expression was detected by quantitative real time PCR, whereas GZMB secretion was measured by ELISpot and ELISA. T cell degranulation was evaluated by flow cytometry using CD107a surface expression as a degranulation marker. RESULTS By RNA-Seq, we identified the up-regulation of various genes of the cytotoxic pathway, in particular of GZMB, by histamine in Th2-polarized CD4+ T cells. In Th2-polarized CD4+ T cells and in CD4+ T cells activated by IL-4 the mRNA expression of GZMB was significantly up-regulated by histamine and by histamine H2 receptor (H2R) agonists. The induction of GZMB secretion by histamine was significantly higher in CD4+ T cells from AD patients than in those from healthy donors. CD107a surface expression was up-regulated by trend in response to histamine in Th2-polarized CD4+ T cells. CONCLUSION Our findings may help to elucidate novel mechanisms of the H2R and to achieve a better understanding of the role of GZMB in the pathogenesis of AD.
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Affiliation(s)
- Damilola Dawodu
- Department of Dermatology and Allergy, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Sophie Sand
- Department of Dermatology and Allergy, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Eirini Nikolouli
- Department of Dermatology and Allergy, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Thomas Werfel
- Department of Dermatology and Allergy, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Susanne Mommert
- Department of Dermatology and Allergy, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany.
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Fu X, Xu M, Yu Z, Gu W, Zhang Z, Zhang B, Wang X, Su Z, Zhang C. Staphylococcal Enterotoxin C2 Mutant-Induced Antitumor Immune Response Is Controlled by CDC42/MLC2-Mediated Tumor Cell Stiffness. Int J Mol Sci 2023; 24:11796. [PMID: 37511553 PMCID: PMC10380429 DOI: 10.3390/ijms241411796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 07/03/2023] [Accepted: 07/20/2023] [Indexed: 07/30/2023] Open
Abstract
As a biological macromolecule, the superantigen staphylococcal enterotoxin C2 (SEC2) is one of the most potent known T-cell activators, and it induces massive cytotoxic granule production. With this property, SEC2 and its mutants are widely regarded as immunomodulating agents for cancer therapy. In a previous study, we constructed an MHC-II-independent mutant of SEC2, named ST-4, which exhibits enhanced immunocyte stimulation and antitumor activity. However, tumor cells have different degrees of sensitivity to SEC2/ST-4. The mechanisms of immune resistance to SEs in cancer cells have not been investigated. Herein, we show that ST-4 could activate more powerful human lymphocyte granule-based cytotoxicity than SEC2. The results of RNA-seq and atomic force microscopy (AFM) analysis showed that, compared with SKOV3 cells, the softer ES-2 cells could escape from SEC2/ST-4-induced cytotoxic T-cell-mediated apoptosis by regulating cell softness through the CDC42/MLC2 pathway. Conversely, after enhancing the stiffness of cancer cells by a nonmuscle myosin-II-specific inhibitor, SEC2/ST-4 exhibited a significant antitumor effect against ES-2 cells by promoting perforin-dependent apoptosis and the S-phase arrest. Taken together, these data suggest that cell stiffness could be a key factor of resistance to SEs in ovarian cancer, and our findings may provide new insight for SE-based tumor immunotherapy.
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Affiliation(s)
- Xuanhe Fu
- Institute of Applied Ecology, Chinese Academy of Sciences, No. 72 Wenhua Road, Shenyang 110016, China
- Department of Immunology, Shenyang Medical College, No. 146 Huanghe North Street, Shenyang 110034, China
- Key Laboratory of Superantigen Research of Liao Ning Province, Shenyang 110016, China
| | - Mingkai Xu
- Institute of Applied Ecology, Chinese Academy of Sciences, No. 72 Wenhua Road, Shenyang 110016, China
- Key Laboratory of Superantigen Research of Liao Ning Province, Shenyang 110016, China
| | - Zhixiong Yu
- Department of Immunology, Shenyang Medical College, No. 146 Huanghe North Street, Shenyang 110034, China
| | - Wu Gu
- Institute of Applied Ecology, Chinese Academy of Sciences, No. 72 Wenhua Road, Shenyang 110016, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhichun Zhang
- Institute of Applied Ecology, Chinese Academy of Sciences, No. 72 Wenhua Road, Shenyang 110016, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Bowen Zhang
- Institute of Applied Ecology, Chinese Academy of Sciences, No. 72 Wenhua Road, Shenyang 110016, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiujuan Wang
- Institute of Applied Ecology, Chinese Academy of Sciences, No. 72 Wenhua Road, Shenyang 110016, China
- Key Laboratory of Superantigen Research of Liao Ning Province, Shenyang 110016, China
| | - Zhencheng Su
- Institute of Applied Ecology, Chinese Academy of Sciences, No. 72 Wenhua Road, Shenyang 110016, China
- Key Laboratory of Superantigen Research of Liao Ning Province, Shenyang 110016, China
| | - Chenggang Zhang
- Institute of Applied Ecology, Chinese Academy of Sciences, No. 72 Wenhua Road, Shenyang 110016, China
- Key Laboratory of Superantigen Research of Liao Ning Province, Shenyang 110016, China
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Zhou T, Jiang Y, Zeng B, Yang B. The cancer preventive activity and mechanisms of prenylated resveratrol and derivatives. Curr Res Toxicol 2023; 5:100113. [PMID: 37519844 PMCID: PMC10382290 DOI: 10.1016/j.crtox.2023.100113] [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: 06/04/2023] [Revised: 07/03/2023] [Accepted: 07/11/2023] [Indexed: 08/01/2023] Open
Abstract
Resveratrol is regarded as neutraceuticals with multiple health benefits. The introduction of prenyl can enhance the bioactivity. In this work, the cancer preventive activities and mechanisms of 18 prenylated reseveratrol and derivatives were investigated. The results showed that prenyl increased the antiproliferative activities of resveratrol, oxyresveratrol and piceatannol against cancer cells, and their antiproliferative activities were time- and dose-dependent. 4-C-prenylation was important for the antiproliferative activity of stilbenoids. The 4-C-prenyl stilbenoids showed better antiproliferative activities than other prenylated stilbenoids. 4-C-prenyl piceatannol showed the best antiproliferative activity. Human hepatoellular carcinomas (HepG2) cell was more sensitive to prenylated stilbenoids than human MCF-7 breast carcinoma cell. 4-C-prenyl piceatannol had high affinities to Caspase-3, Caspase-9, CDK2 and Cyclin A2. The possible amino acids involved in binding 4-C-prenyl piceatannol were revealed. The expression of Caspase-3 and Caspase-9 were upregulated by 4-C-prenyl piceatannol and the expression of CDK2 and Cyclin A2 in HepG2 cells were downregulated, which contributed to apoptosis. The above results eludicated the possible antiproliferative mechanisms of prenylated stilbenoids.
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Affiliation(s)
- Ting Zhou
- State Key Laboratory of Plant Diversity and Prominent Crops, Guangdong Provincial Key Laboratory of Applied Botany, Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
- South China National Botanical Garden, Guangzhou 510650, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yueming Jiang
- State Key Laboratory of Plant Diversity and Prominent Crops, Guangdong Provincial Key Laboratory of Applied Botany, Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
- South China National Botanical Garden, Guangzhou 510650, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Bin Zeng
- China Astronaut Research and Training Center, Beijing 100094, China
| | - Bao Yang
- State Key Laboratory of Plant Diversity and Prominent Crops, Guangdong Provincial Key Laboratory of Applied Botany, Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
- South China National Botanical Garden, Guangzhou 510650, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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Heterogeneity and Functions of Tumor-Infiltrating Antibody Secreting Cells: Lessons from Breast, Ovarian, and Other Solid Cancers. Cancers (Basel) 2022; 14:cancers14194800. [PMID: 36230721 PMCID: PMC9563085 DOI: 10.3390/cancers14194800] [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: 08/22/2022] [Revised: 09/26/2022] [Accepted: 09/27/2022] [Indexed: 11/17/2022] Open
Abstract
Simple Summary B cells are gaining increasing recognition as important contributors to the tumor microenvironment, influencing, positively or negatively, tumor growth, patient survival, and response to therapies. Antibody secreting cells (ASCs) constitute a variable fraction of tumor-infiltrating B cells in most solid tumors, and they produce tumor-specific antibodies that can drive distinct immune responses depending on their isotypes and specificities. In this review, we discuss the current knowledge of the heterogeneity of ASCs infiltrating solid tumors and how both their canonical and noncanonical functions shape antitumor immunity, with a special emphasis on breast and ovarian cancers. Abstract Neglected for a long time in cancer, B cells and ASCs have recently emerged as critical actors in the tumor microenvironment, with important roles in shaping the antitumor immune response. ASCs indeed exert a major influence on tumor growth, patient survival, and response to therapies. The mechanisms underlying their pro- vs. anti-tumor roles are beginning to be elucidated, revealing the contributions of their secreted antibodies as well as of their emerging noncanonical functions. Here, concentrating mostly on ovarian and breast cancers, we summarize the current knowledge on the heterogeneity of tumor-infiltrating ASCs, we discuss their possible local or systemic origin in relation to their immunoglobulin repertoire, and we review the different mechanisms by which antibody (Ab) subclasses and isoforms differentially impact tumor cells and anti-tumor immunity. We also discuss the emerging roles of cytokines and other immune modulators produced by ASCs in cancer. Finally, we propose strategies to manipulate the tumor ASC compartment to improve cancer therapies.
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Xie J, El Rami F, Zhou K, Simonetta F, Chen Z, Zheng X, Chen M, Balakrishnan PB, Dai SY, Murty S, Alam IS, Baker J, Negrin RS, Gambhir SS, Rao J. Multiparameter Longitudinal Imaging of Immune Cell Activity in Chimeric Antigen Receptor T Cell and Checkpoint Blockade Therapies. ACS CENTRAL SCIENCE 2022; 8:590-602. [PMID: 35647285 PMCID: PMC9136971 DOI: 10.1021/acscentsci.2c00142] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Indexed: 05/17/2023]
Abstract
Longitudinal multimodal imaging presents unique opportunities for noninvasive surveillance and prediction of treatment response to cancer immunotherapy. In this work we first designed a novel granzyme B activated self-assembly small molecule, G-SNAT, for the assessment of cytotoxic T lymphocyte mediated cancer cell killing. G-SNAT was found to specifically detect the activity of granzyme B within the cytotoxic granules of activated T cells and engaged cancer cells in vitro. In lymphoma tumor-bearing mice, the retention of cyanine 5 labeled G-SNAT-Cy5 correlated to CAR T cell mediated granzyme B exocytosis and tumor eradication. In colorectal tumor-bearing transgenic mice with hematopoietic cells expressing firefly luciferase, longitudinal bioluminescence and fluorescence imaging revealed that after combination treatment of anti-PD-1 and anti-CTLA-4, the dynamics of immune cell trafficking, tumor infiltration, and cytotoxic activity predicted the therapeutic outcome before tumor shrinkage was evident. These results support further development of G-SNAT for imaging early immune response to checkpoint blockade and CAR T-cell therapy in patients and highlight the utility of multimodality imaging for improved mechanistic insights into cancer immunotherapy.
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Affiliation(s)
- Jinghang Xie
- Department
of Radiology, Molecular Imaging Program at Stanford, Stanford University School of Medicine, Stanford, California 94305, United States
| | - Fadi El Rami
- Department
of Radiology, Molecular Imaging Program at Stanford, Stanford University School of Medicine, Stanford, California 94305, United States
| | - Kaixiang Zhou
- Department
of Radiology, Molecular Imaging Program at Stanford, Stanford University School of Medicine, Stanford, California 94305, United States
| | - Federico Simonetta
- Division
of Blood and Marrow Transplantation, Department of Medicine, Stanford University Medical Center, Stanford, California 94305, United States
| | - Zixin Chen
- Department of Chemistry, Department of Bioengineering, and Department of Materials Science
& Engineering, Stanford University, Stanford, California 94305, United States
| | - Xianchuang Zheng
- Department
of Radiology, Molecular Imaging Program at Stanford, Stanford University School of Medicine, Stanford, California 94305, United States
| | - Min Chen
- Department
of Radiology, Molecular Imaging Program at Stanford, Stanford University School of Medicine, Stanford, California 94305, United States
| | - Preethi B. Balakrishnan
- Department
of Radiology, Molecular Imaging Program at Stanford, Stanford University School of Medicine, Stanford, California 94305, United States
| | - Sheng-Yao Dai
- Department
of Radiology, Molecular Imaging Program at Stanford, Stanford University School of Medicine, Stanford, California 94305, United States
| | - Surya Murty
- Department
of Radiology, Molecular Imaging Program at Stanford, Stanford University School of Medicine, Stanford, California 94305, United States
- Department of Chemistry, Department of Bioengineering, and Department of Materials Science
& Engineering, Stanford University, Stanford, California 94305, United States
| | - Israt S. Alam
- Department
of Radiology, Molecular Imaging Program at Stanford, Stanford University School of Medicine, Stanford, California 94305, United States
| | - Jeanette Baker
- Division
of Blood and Marrow Transplantation, Department of Medicine, Stanford University Medical Center, Stanford, California 94305, United States
| | - Robert S. Negrin
- Division
of Blood and Marrow Transplantation, Department of Medicine, Stanford University Medical Center, Stanford, California 94305, United States
| | - Sanjiv S. Gambhir
- Department
of Radiology, Molecular Imaging Program at Stanford, Stanford University School of Medicine, Stanford, California 94305, United States
- Department of Chemistry, Department of Bioengineering, and Department of Materials Science
& Engineering, Stanford University, Stanford, California 94305, United States
| | - Jianghong Rao
- Department
of Radiology, Molecular Imaging Program at Stanford, Stanford University School of Medicine, Stanford, California 94305, United States
- Department of Chemistry, Department of Bioengineering, and Department of Materials Science
& Engineering, Stanford University, Stanford, California 94305, United States
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10
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McKenzie B, Khazen R, Valitutti S. Greek Fire, Poison Arrows, and Scorpion Bombs: How Tumor Cells Defend Against the Siege Weapons of Cytotoxic T Lymphocytes. Front Immunol 2022; 13:894306. [PMID: 35592329 PMCID: PMC9110820 DOI: 10.3389/fimmu.2022.894306] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 04/07/2022] [Indexed: 01/05/2023] Open
Abstract
CD8+ cytotoxic T lymphocytes (CTLs) are the main cellular effectors of the adaptive immune response against cancer cells, which in turn have evolved sophisticated cellular defense mechanisms to withstand CTL attack. Herein we provide a critical review of the pertinent literature on early and late attack/defense events taking place at the CTL/target cell lytic synapse. We examine the earliest steps of CTL-mediated cytotoxicity (“the poison arrows”) elicited within seconds of CTL/target cell encounter, which face commensurately rapid synaptic repair mechanisms on the tumor cell side, providing the first formidable barrier to CTL attack. We examine how breach of this first defensive barrier unleashes the inextinguishable “Greek fire” in the form of granzymes whose broad cytotoxic potential is linked to activation of cell death executioners, injury of vital organelles, and destruction of intracellular homeostasis. Herein tumor cells deploy slower but no less sophisticated defensive mechanisms in the form of enhanced autophagy, increased reparative capacity, and dysregulation of cell death pathways. We discuss how the newly discovered supra-molecular attack particles (SMAPs, the “scorpion bombs”), seek to overcome the robust defensive mechanisms that confer tumor cell resistance. Finally, we discuss the implications of the aforementioned attack/defense mechanisms on the induction of regulated cell death (RCD), and how different contemporary RCD modalities (including apoptosis, pyroptosis, and ferroptosis) may have profound implications for immunotherapy. Thus, we propose that understanding and targeting multiple steps of the attack/defense process will be instrumental to enhance the efficacy of CTL anti-tumor activity and meet the outstanding challenges in clinical immunotherapy.
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Affiliation(s)
- Brienne McKenzie
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1037, Centre de Recherche en Cancérologie de Toulouse (CRCT), Université de Toulouse III-Paul Sabatier, Toulouse, France
| | - Roxana Khazen
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1037, Centre de Recherche en Cancérologie de Toulouse (CRCT), Université de Toulouse III-Paul Sabatier, Toulouse, France
| | - Salvatore Valitutti
- Institut National de la Santé et de la Recherche Médicale (INSERM) U1037, Centre de Recherche en Cancérologie de Toulouse (CRCT), Université de Toulouse III-Paul Sabatier, Toulouse, France.,Department of Pathology, Institut Universitaire du Cancer-Oncopole de Toulouse, Toulouse, France
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11
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Zhang L, Wang X, Li Y, Han J, Gao X, Li S, Wang F. c-Myb facilitates immune escape of esophageal adenocarcinoma cells through the miR-145-5p/SPOP/PD-L1 axis. Clin Transl Med 2021; 11:e464. [PMID: 34586738 PMCID: PMC8473478 DOI: 10.1002/ctm2.464] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 05/24/2021] [Accepted: 05/30/2021] [Indexed: 02/03/2023] Open
Abstract
Esophageal adenocarcinoma (EAC), a subtype of esophageal carcinoma, is a severe health problem associated with high death rate and poor prognosis. Immunotherapy has proven to be effective in many solid tumors, including EAC, but immune escape blocks its effectiveness. Thus, we explored the mechanisms and functional role of c-Myb in immune escape of EAC cells. Clinical EAC tissues were collected for determining the expression of c-Myb, speckled POZ protein (SPOP), and miR-145-5p. Functional assays were then performed to detect the interactions between c-Myb and SPOP as well as between SPOP and miR-145-5p. EAC cell invasion and migration were assessed. Next, T cells were sorted and cocultured with EAC cells with different treatments followed by detection of T-cell viability. In addition, a mouse model of EAC was constructed for relevant in vivo assays. c-Myb and miR-145-5p were highly expressed and SPOP had low expressions in EAC. c-Myb activated the transcription of miR-145-5p, which in turn targeted SPOP. Further, SPOP accelerated the ubiquitination of PD-L1 to enhance its expression. Overexpression of PD-L1 suppressed T-cell functions and promoted proliferative and migrative abilities of EAC cells to induce immune escape. The above findings were also confirmed in the ECA mouse model in vivo. Our findings uncovered that c-Myb can promote the immune escape of EAC cells by favoring the transcription of miR-145-5p and inhibiting SPOP-dependent ubiquitination and degradation of PD-L1, thus, presenting new target for EAC adjunct therapy.
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Affiliation(s)
- Lan Zhang
- Department of PathologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouP. R. China
| | - Xiaohui Wang
- Department of PathologyThe First Affiliated Hospital of Xinxiang Medical UniversityZhengzhouP. R. China
| | - Yunfei Li
- Department of PathologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouP. R. China
| | - Jing Han
- Department of PathologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouP. R. China
| | - Xianzheng Gao
- Department of PathologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouP. R. China
| | - Shenglei Li
- Department of PathologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouP. R. China
| | - Feng Wang
- Department of OncologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouP. R. China
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12
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Wu Y, Li Q, Liu Y, Li Y, Chen Y, Wu X, Liu X. Targeting hypoxia for sensitization of tumors to apoptosis enhancement through supramolecular biohybrid bacteria. Int J Pharm 2021; 605:120817. [PMID: 34166726 DOI: 10.1016/j.ijpharm.2021.120817] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 06/16/2021] [Accepted: 06/17/2021] [Indexed: 02/06/2023]
Abstract
Bacteria-driven drug-delivery systems have drawn considerable interests for their highly selective hypoxia-targeting and efficacy in tumor inhibition. For the first time, a supramolecular biohybrid bacterium (SA@HU) is constructed by coating attenuated Salmonella typhimurium (S. typhimurium ΔppGpp/Lux) with nanoassemblies. In addition, the host-guest inclusion complexes based on hydroxypropyl-β-cyclodextrin (HPCD) and amantadine (AMA) was developed to encapsulate the natural antineoplastic product, ursolic acid (UA). It is found that the drug-carried coating layer has no significant impact on the antitumor activity or tumor-targeting capacity of bacteria. Significant restraint of tumor progression is achieved by SA@HU due to the synergy of cellular immune activation and apoptosis enhancement. Most importantly, intravenous delivery of UA by this biohybrid vector can cause tumor lysis, as the bacteria-attracting nutrients beneficial for preferential accumulation of bacteria in tumor. The mutual promotion of bacteria and UA may also contribute to a superior anticancer effect. Hence, the SA@HU-based biotic/abiotic supramolecular therapeutic system represents a novel strategy for combined chemo-bacterial therapy.
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Affiliation(s)
- Yundi Wu
- School of Biomedical Engineering, State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China
| | - Qiuwan Li
- School of Life and Pharmaceutical Sciences, Hainan University, Haikou 570228, China
| | - Yang Liu
- School of Life and Pharmaceutical Sciences, Hainan University, Haikou 570228, China
| | - Yuxuan Li
- School of Life and Pharmaceutical Sciences, Hainan University, Haikou 570228, China
| | - Yinhua Chen
- School of Life and Pharmaceutical Sciences, Hainan University, Haikou 570228, China
| | - Xilong Wu
- School of Biomedical Engineering, State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China.
| | - Xiande Liu
- School of Life and Pharmaceutical Sciences, Hainan University, Haikou 570228, China.
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13
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van Schaik TA, Chen KS, Shah K. Therapy-Induced Tumor Cell Death: Friend or Foe of Immunotherapy? Front Oncol 2021; 11:678562. [PMID: 34141622 PMCID: PMC8204251 DOI: 10.3389/fonc.2021.678562] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 05/03/2021] [Indexed: 12/13/2022] Open
Abstract
Combinatory treatments using surgery, radiotherapy and/or chemotherapy together with immunotherapy have shown encouraging results for specific subsets of tumors, but a significant proportion of tumors remains unsusceptible. Some of these inconsistencies are thought to be the consequence of an immunosuppressive tumor microenvironment (TME) caused by therapy-induced tumor cell death (TCD). An increased understanding of the molecular mechanisms governing TCD has provided valuable insights in specific signaling cascades activated by treatment and the subsequent effects on the TME. Depending on the treatment variables of conventional chemo-, radio- and immunotherapy and the genetic composition of the tumor cells, particular cell death pathways are activated. Consequently, TCD can either have tolerogenic or immunogenic effects on the local environment and thereby affect the post-treatment anti-tumor response of immune cells. Thus, identification of these events can provide new rationales to increase the efficacy of conventional therapies combined with immunotherapies. In this review, we sought to provide an overview of the molecular mechanisms initiated by conventional therapies and the impact of treatment-induced TCD on the TME. We also provide some perspectives on how we can circumvent tolerogenic effects by adequate treatment selection and manipulation of key signaling cascades.
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Affiliation(s)
- Thijs A van Schaik
- Center for Stem Cell Therapeutics and Imaging (CSTI), Harvard Medical School, Boston, MA, United States.,Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - Kok-Siong Chen
- Center for Stem Cell Therapeutics and Imaging (CSTI), Harvard Medical School, Boston, MA, United States.,Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - Khalid Shah
- Center for Stem Cell Therapeutics and Imaging (CSTI), Harvard Medical School, Boston, MA, United States.,Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States.,Harvard Stem Cell Institute, Harvard University, Cambridge, MA, United States
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14
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Nishie M, Suzuki E, Hattori M, Kawaguch K, Kataoka TR, Hirata M, Pu F, Kotake T, Tsuda M, Yamaguchi A, Sugie T, Toi M. Downregulated ATP6V1B1 expression acidifies the intracellular environment of cancer cells leading to resistance to antibody-dependent cellular cytotoxicity. Cancer Immunol Immunother 2020; 70:817-830. [PMID: 33000417 DOI: 10.1007/s00262-020-02732-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 09/20/2020] [Indexed: 11/30/2022]
Abstract
Among several mechanisms for the resistance of human epidermal growth factor receptor 2-overexpressing (HER2 +) cancer cells to trastuzumab, little is known regarding the mechanism underlying the resistance to trastuzumab-mediated antibody-dependent cellular cytotoxicity (ADCC). Cell death due to ADCC is caused by apoptosis of target cells induced by granzymes released from natural killer cells. Because optimal granzyme physiological activity occurs at neutral pH, we assumed that the pH of the intracellular environment influences the cytotoxic effects of granzymes. We established ADCC-resistant cells and compared them with wild-type cells in terms of the expression of intracellular pH-regulating genes. The expression of ATP6V1B1, which encodes a component of vacuolar ATPases, was downregulated in the ADCC-resistant cells. Thus, to functionally characterize ATP6V1B1, we used a CRISPR/Cas9 system to generate ATP6V1B1-knockout SKBR3 and JIMT-1 cells (both HER2 + human breast cancer cell line). The resulting cells exhibited significantly less ADCC than the control SKBR3 and JIMT-1 cells. The intracellular pH of the ATP6V1B1-knockout SKBR3 and JIMT-1 cells was significantly lower than control SKBR3 and JIMT-1cells. An analysis of granzyme dynamics during the ADCC reaction in cancer cells revealed that granzymes degraded intracellularly in the control SKBR3 and JIMT-1 cells and accumulated in ATP6V1B1-knockout cells, but were not cytotoxic. These findings suggest that decreased vacuolar ATPase activity alters the cytoplasmic pH of cancer cells to create an environment that is less suitable for granzyme bioactivity, which adversely affects the induction of apoptosis of cancer cells by NK cells.
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Affiliation(s)
- Mariko Nishie
- Department of Breast Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Eiji Suzuki
- Department of Breast Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan. .,Department of Breast Surgery, Kyoto University Hospital, 54 Shogoin-kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan.
| | - Masakazu Hattori
- Department of Immunosenescence, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kosuke Kawaguch
- Department of Breast Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tatsuki R Kataoka
- Department of Diagnostic Pathology, Kyoto University Hospital, Kyoto, Japan
| | - Masahiro Hirata
- Department of Diagnostic Pathology, Kyoto University Hospital, Kyoto, Japan
| | - Fengling Pu
- Department of Breast Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Takeshi Kotake
- Department of Breast Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Moe Tsuda
- Department of Breast Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Ayane Yamaguchi
- Department of Breast Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tomoharu Sugie
- Department of Breast Surgery, Kansai Medical University, Osaka, Japan
| | - Masakazu Toi
- Department of Breast Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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15
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Cytomegalovirus inhibition of extrinsic apoptosis determines fitness and resistance to cytotoxic CD8 T cells. Proc Natl Acad Sci U S A 2020; 117:12961-12968. [PMID: 32444487 DOI: 10.1073/pnas.1914667117] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Viral immune evasion is currently understood to focus on deflecting CD8 T cell recognition of infected cells by disrupting antigen presentation pathways. We evaluated viral interference with the ultimate step in cytotoxic T cell function, the death of infected cells. The viral inhibitor of caspase-8 activation (vICA) conserved in human cytomegalovirus (HCMV) and murine CMV (MCMV) prevents the activation of caspase-8 and proapoptotic signaling. We demonstrate the key role of vICA from either virus, in deflecting antigen-specific CD8 T cell-killing of infected cells. vICA-deficient mutants, lacking either UL36 or M36, exhibit greater susceptibility to CD8 T cell control than mutants lacking the set of immunoevasins known to disrupt antigen presentation via MHC class I. This difference is evident during infection in the natural mouse host infected with MCMV, in settings where virus-specific CD8 T cells are adoptively transferred. Finally, we identify the molecular mechanism through which vICA acts, demonstrating the central contribution of caspase-8 signaling at a point of convergence of death receptor-induced apoptosis and perforin/granzyme-dependent cytotoxicity.
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16
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Davies AJ, Rinaldi S, Costigan M, Oh SB. Cytotoxic Immunity in Peripheral Nerve Injury and Pain. Front Neurosci 2020; 14:142. [PMID: 32153361 PMCID: PMC7047751 DOI: 10.3389/fnins.2020.00142] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 02/04/2020] [Indexed: 12/13/2022] Open
Abstract
Cytotoxicity and consequent cell death pathways are a critical component of the immune response to infection, disease or injury. While numerous examples of inflammation causing neuronal sensitization and pain have been described, there is a growing appreciation of the role of cytotoxic immunity in response to painful nerve injury. In this review we highlight the functions of cytotoxic immune effector cells, focusing in particular on natural killer (NK) cells, and describe the consequent action of these cells in the injured nerve as well as other chronic pain conditions and peripheral neuropathies. We describe how targeted delivery of cytotoxic factors via the immune synapse operates alongside Wallerian degeneration to allow local axon degeneration in the absence of cell death and is well-placed to support the restoration of homeostasis within the nerve. We also summarize the evidence for the expression of endogenous ligands and receptors on injured nerve targets and infiltrating immune cells that facilitate direct neuro-immune interactions, as well as modulation of the surrounding immune milieu. A number of chronic pain and peripheral neuropathies appear comorbid with a loss of function of cellular cytotoxicity suggesting such mechanisms may actually help to resolve neuropathic pain. Thus while the immune response to peripheral nerve injury is a major driver of maladaptive pain, it is simultaneously capable of directing resolution of injury in part through the pathways of cellular cytotoxicity. Our growing knowledge in tuning immune function away from inflammation toward recovery from nerve injury therefore holds promise for interventions aimed at preventing the transition from acute to chronic pain.
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Affiliation(s)
- Alexander J. Davies
- Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, University of Oxford, Oxford, United Kingdom
| | - Simon Rinaldi
- Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, University of Oxford, Oxford, United Kingdom
| | - Michael Costigan
- Department of Anesthesia, Boston Children’s Hospital, Harvard Medical School, Boston, MA, United States
- Department of Neurobiology, Boston Children’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Seog Bae Oh
- Department of Brain and Cognitive Sciences, College of Natural Sciences, Seoul National University, Seoul, South Korea
- Dental Research Institute and Department of Neurobiology & Physiology, School of Dentistry, Seoul National University, Seoul, South Korea
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17
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Noonan JJ, Jarzabek M, Lincoln FA, Cavanagh BL, Pariag AR, Juric V, Young LS, Ligon KL, Jahns H, Zheleva D, Prehn JHM, Rehm M, Byrne AT, Murphy BM. Implementing Patient-Derived Xenografts to Assess the Effectiveness of Cyclin-Dependent Kinase Inhibitors in Glioblastoma. Cancers (Basel) 2019; 11:cancers11122005. [PMID: 31842413 PMCID: PMC6966586 DOI: 10.3390/cancers11122005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 11/29/2019] [Accepted: 12/01/2019] [Indexed: 01/04/2023] Open
Abstract
Glioblastoma (GBM) is the most common primary brain tumor with no available cure. As previously described, seliciclib, a first-generation cyclin-dependent kinase (CDK) inhibitor, down-regulates the anti-apoptotic protein, Mcl-1, in GBM, thereby sensitizing GBM cells to the apoptosis-inducing effects of the death receptor ligand, tumor necrosis factor-related apoptosis-inducing ligand (TRAIL). Here, we have assessed the efficacy of seliciclib when delivered in combination with the antibody against human death receptor 5, drozitumab, in clinically relevant patient-derived xenograft (PDX) models of GBM. A reduction in viability and significant levels of apoptosis were observed in vitro in human GBM neurospheres following treatment with seliciclib plus drozitumab. While the co-treatment strategy induced a similar effect in PDX models, the dosing regimen required to observe seliciclib-targeted responses in the brain, resulted in lethal toxicity in 45% of animals. Additional studies showed that the second-generation CDK inhibitor, CYC065, with improved potency in comparison to seliciclib, induced a significant decrease in the size of human GBM neurospheres in vitro and was well tolerated in vivo, upon administration at clinically relevant doses. This study highlights the continued need for robust pre-clinical assessment of promising treatment approaches using clinically relevant models.
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Affiliation(s)
- Janis J. Noonan
- Department of Physiology & Medical Physics, Royal College of Surgeons in Ireland, D02 YN77 Dublin 2, Ireland; (J.J.N.); (M.J.); (F.A.L.); (A.R.P.); (V.J.); (J.H.M.P.); (A.T.B.)
| | - Monika Jarzabek
- Department of Physiology & Medical Physics, Royal College of Surgeons in Ireland, D02 YN77 Dublin 2, Ireland; (J.J.N.); (M.J.); (F.A.L.); (A.R.P.); (V.J.); (J.H.M.P.); (A.T.B.)
| | - Frank A. Lincoln
- Department of Physiology & Medical Physics, Royal College of Surgeons in Ireland, D02 YN77 Dublin 2, Ireland; (J.J.N.); (M.J.); (F.A.L.); (A.R.P.); (V.J.); (J.H.M.P.); (A.T.B.)
| | - Brenton L. Cavanagh
- Cellular and Molecular Imaging Core, Royal College of Surgeons in Ireland, D02 YN77 Dublin 2, Ireland;
| | - Arhona R. Pariag
- Department of Physiology & Medical Physics, Royal College of Surgeons in Ireland, D02 YN77 Dublin 2, Ireland; (J.J.N.); (M.J.); (F.A.L.); (A.R.P.); (V.J.); (J.H.M.P.); (A.T.B.)
| | - Viktorija Juric
- Department of Physiology & Medical Physics, Royal College of Surgeons in Ireland, D02 YN77 Dublin 2, Ireland; (J.J.N.); (M.J.); (F.A.L.); (A.R.P.); (V.J.); (J.H.M.P.); (A.T.B.)
| | - Leonie S. Young
- Endocrine Oncology Research Group, Department of Surgery, Royal College of Surgeons in Ireland, D02 YN77 Dublin 2, Ireland;
| | - Keith L. Ligon
- Department of Oncologic Pathology, Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA 02215, USA;
| | - Hanne Jahns
- Pathobiology Section, School of Veterinary Medicine, University College Dublin, D02 YN77 Dublin 4, Ireland;
| | - Daniella Zheleva
- Cyclacel Ltd., 1 James Lindsay Place, Dundee, Scotland DD1 5JJ, UK;
| | - Jochen H. M. Prehn
- Department of Physiology & Medical Physics, Royal College of Surgeons in Ireland, D02 YN77 Dublin 2, Ireland; (J.J.N.); (M.J.); (F.A.L.); (A.R.P.); (V.J.); (J.H.M.P.); (A.T.B.)
| | - Markus Rehm
- Institute of Cell Biology and Immunology, University of Stuttgart, D-70569 Stuttgart, Germany;
- Stuttgart Research Center Systems Biology, University of Stuttgart, D-70569 Stuttgart, Germany
| | - Annette T. Byrne
- Department of Physiology & Medical Physics, Royal College of Surgeons in Ireland, D02 YN77 Dublin 2, Ireland; (J.J.N.); (M.J.); (F.A.L.); (A.R.P.); (V.J.); (J.H.M.P.); (A.T.B.)
| | - Brona M. Murphy
- Department of Physiology & Medical Physics, Royal College of Surgeons in Ireland, D02 YN77 Dublin 2, Ireland; (J.J.N.); (M.J.); (F.A.L.); (A.R.P.); (V.J.); (J.H.M.P.); (A.T.B.)
- Correspondence: ; Tel.: +35-31-402-2119
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18
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Radke JR, Routes JM, Cook JL. E1A oncogene induced sensitization to NK cell induced apoptosis requires PIDD and Caspase-2. Cell Death Discov 2019; 5:110. [PMID: 31285853 PMCID: PMC6602934 DOI: 10.1038/s41420-019-0189-z] [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: 05/10/2019] [Revised: 05/31/2019] [Accepted: 06/05/2019] [Indexed: 11/09/2022] Open
Abstract
Expression of the adenovirus E1A oncogene sensitizes tumor cells to innate immune rejection by NK cells. This increased NK sensitivity is only partly explained by an E1A-induced increase in target cell surface expression of NKG2D ligands. The post-recognition mechanisms by which E1A sensitizes cells to the apoptotic cell death response to NK injury remains to be defined. E1A sensitizes cells to apoptotic stimuli through two distinct mechanisms-repression of NF-κB-dependent antiapoptotic responses and enhancement of caspase-2 activation and related mitochondrial injury. The current studies examined the roles of each of these post-NKG2D-recognition pathways in the increased sensitivity of E1A-positive target cells to NK killing. Sensitization to NK-induced apoptosis was independent of E1A-mediated repression of cellular NF-κB responses but was dependent on the expression of both caspase-2 and the upstream, caspase-2 activating molecule, PIDD. Target cells lacking caspase-2 or PIDD expression retained E1A-induced increased expression of the NKG2D ligand, RAE-1. NK cell-induced mitochondrial injury of E1A-expressing cells did not require expression of the mitochondrial molecules, Bak or Bax. These results define a PIDD/caspase-2-dependent pathway, through which E1A sensitizes cells to NK-mediated cytolysis independently of and complementarily to E1A-enhanced NKG2D/RAE-1 ligand expression.
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Affiliation(s)
- Jay R Radke
- 1Research Section, Boise VA Hospital and Idaho Veterans Research and Education Foundation, Boise, ID 83702 USA
| | - John M Routes
- 2Section of Allergy and Clinical Immunology, Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI 53226 USA
| | - James L Cook
- 3Research Section, Edward Hines, Jr. VA Hospital, Hines, Maywood, IL 60141 USA.,4Division of Infectious Diseases, Department of Microbiology and Immunology, and the Infectious Diseases and Immunology Research Institute, Loyola University Chicago-Stritch School of Medicine, Maywood, IL 60153 USA
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19
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Orthohantaviruses belonging to three phylogroups all inhibit apoptosis in infected target cells. Sci Rep 2019; 9:834. [PMID: 30696898 PMCID: PMC6351540 DOI: 10.1038/s41598-018-37446-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 12/03/2018] [Indexed: 12/04/2022] Open
Abstract
Orthohantaviruses, previously known as hantaviruses, are zoonotic viruses that can cause hantavirus pulmonary syndrome (HPS) and hemorrhagic fever with renal syndrome (HFRS) in humans. The HPS-causing Andes virus (ANDV) and the HFRS-causing Hantaan virus (HTNV) have anti-apoptotic effects. To investigate if this represents a general feature of orthohantaviruses, we analysed the capacity of six different orthohantaviruses – belonging to three distinct phylogroups and representing both pathogenic and non-pathogenic viruses – to inhibit apoptosis in infected cells. Primary human endothelial cells were infected with ANDV, HTNV, the HFRS-causing Puumala virus (PUUV) and Seoul virus, as well as the putative non-pathogenic Prospect Hill virus and Tula virus. Infected cells were then exposed to the apoptosis-inducing chemical staurosporine or to activated human NK cells exhibiting a high cytotoxic potential. Strikingly, all orthohantaviruses inhibited apoptosis in both settings. Moreover, we show that the nucleocapsid (N) protein from all examined orthohantaviruses are potential targets for caspase-3 and granzyme B. Recombinant N protein from ANDV, PUUV and the HFRS-causing Dobrava virus strongly inhibited granzyme B activity and also, to certain extent, caspase-3 activity. Taken together, this study demonstrates that six different orthohantaviruses inhibit apoptosis, suggesting this to be a general feature of orthohantaviruses likely serving as a mechanism of viral immune evasion.
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20
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Turner CT, Lim D, Granville DJ. Granzyme B in skin inflammation and disease. Matrix Biol 2019; 75-76:126-140. [DOI: 10.1016/j.matbio.2017.12.005] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 12/11/2017] [Accepted: 12/12/2017] [Indexed: 01/30/2023]
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21
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Adutler-Lieber S, Friedman N, Geiger B. Expansion and Antitumor Cytotoxicity of T-Cells Are Augmented by Substrate-Bound CCL21 and Intercellular Adhesion Molecule 1. Front Immunol 2018; 9:1303. [PMID: 29942308 PMCID: PMC6004589 DOI: 10.3389/fimmu.2018.01303] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 05/25/2018] [Indexed: 12/31/2022] Open
Abstract
Adoptive immunotherapy is based on ex vivo expansion and stimulation of T-cells, followed by their transfer into patients. The need for the ex vivo culturing step provides opportunities for modulating the properties of transferred T-cells, enhancing their antitumor abilities, and increasing their number. Here, we present a synthetic immune niche (SIN) that increases the number and antitumor activity of cytotoxic CD8+ T-cells. We first evaluated the effect of various SIN compositions that mimic the physiological microenvironment encountered by T-cells during their activation and expansion in the lymph node. We found that substrates coated with the chemokine CCL21 together with the adhesion molecule intercellular adhesion molecule 1 significantly increase the number of ovalbumin-specific murine CD8+ T-cells activated by antigen-loaded dendritic cells or activation microbeads. Notably, cells cultured on these substrates also displayed augmented cytotoxic activity toward ovalbumin-expressing melanoma cells, both in culture and in vivo. This increase in specific cytotoxic activity was associated with a major increase in the cellular levels of the killing-mediator granzyme B. Our results suggest that this SIN may be used for generating T-cells with augmented cytotoxic function, for use in cancer immunotherapy.
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Affiliation(s)
| | - Nir Friedman
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel
| | - Benjamin Geiger
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
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22
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Breunig C, Pahl J, Küblbeck M, Miller M, Antonelli D, Erdem N, Wirth C, Will R, Bott A, Cerwenka A, Wiemann S. MicroRNA-519a-3p mediates apoptosis resistance in breast cancer cells and their escape from recognition by natural killer cells. Cell Death Dis 2017; 8:e2973. [PMID: 28771222 PMCID: PMC5596553 DOI: 10.1038/cddis.2017.364] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 06/22/2017] [Accepted: 07/02/2017] [Indexed: 12/19/2022]
Abstract
Aggressive breast cancer is associated with poor patient outcome and characterized by the development of tumor cell variants that are able to escape from control of the immune system or are resistant to targeted therapies. The complex molecular mechanisms leading to immune escape and therapy resistance are incompletely understood. We have previously shown that high miR-519a-3p levels are associated with poor survival in breast cancer. Here, we demonstrate that miR-519a-3p confers resistance to apoptosis induced by TRAIL, FasL and granzyme B/perforin by interfering with apoptosis signaling in breast cancer cells. MiR-519a-3p diminished the expression of its direct target genes for TRAIL-R2 (TNFRSF10B) and for caspase-8 (CASP8) and its indirect target gene for caspase-7 (CASP7), resulting in reduced sensitivity and tumor cell apoptosis in response to apoptotic stimuli. Furthermore, miR-519a-3p impaired tumor cell killing by natural killer (NK) cells via downregulation of the NKG2D ligands ULBP2 and MICA on the surface of tumor cells that are crucial for the recognition of these tumor cells by NK cells. We determined that miR-519a-3p was overexpressed in more aggressive mutant TP53 breast cancer that was associated with poor survival. Furthermore, low levels of TRAIL-R2, caspase-7 and caspase-8 correlated with poor survival, suggesting that the inhibitory effect of miR-519a-3p on TRAIL-R2 and caspases may have direct clinical relevance in lowering patient’s prognosis. In conclusion, we demonstrate that miR-519a-3p is a critical factor in mediating resistance toward cancer cell apoptosis and impairing tumor cell recognition by NK cells. This joint regulation of apoptosis and immune cell recognition through miR-519a-3p supports the hypothesis that miRNAs are key regulators of cancer cell fate, facilitating cancer progression and evasion from immunosurveillance at multiple and interconnected levels.
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Affiliation(s)
- Christian Breunig
- Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Jens Pahl
- Innate Immunity Group, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Moritz Küblbeck
- Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Matthias Miller
- Innate Immunity Group, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Daniela Antonelli
- Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Nese Erdem
- Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Cornelia Wirth
- Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Rainer Will
- Genomics &Proteomics Core Facilities, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Alexander Bott
- Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Adelheid Cerwenka
- Innate Immunity Group, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Stefan Wiemann
- Division of Molecular Genome Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany
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23
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Klein T, Viner RI, Overall CM. Quantitative proteomics and terminomics to elucidate the role of ubiquitination and proteolysis in adaptive immunity. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2016; 374:rsta.2015.0372. [PMID: 27644975 PMCID: PMC5031638 DOI: 10.1098/rsta.2015.0372] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 06/27/2016] [Indexed: 06/06/2023]
Abstract
Adaptive immunity is the specialized defence mechanism in vertebrates that evolved to eliminate pathogens. Specialized lymphocytes recognize specific protein epitopes through antigen receptors to mount potent immune responses, many of which are initiated by nuclear factor-kappa B activation and gene transcription. Most, if not all, pathways in adaptive immunity are further regulated by post-translational modification (PTM) of signalling proteins, e.g. phosphorylation, citrullination, ubiquitination and proteolytic processing. The importance of PTMs is reflected by genetic or acquired defects in these pathways that lead to a dysfunctional immune response. Here we discuss the state of the art in targeted proteomics and systems biology approaches to dissect the PTM landscape specifically regarding ubiquitination and proteolysis in B- and T-cell activation. Recent advances have occurred in methods for specific enrichment and targeted quantitation. Together with improved instrument sensitivity, these advances enable the accurate analysis of often rare PTM events that are opaque to conventional proteomics approaches, now rendering in-depth analysis and pathway dissection possible. We discuss published approaches, including as a case study the profiling of the N-terminome of lymphocytes of a rare patient with a genetic defect in the paracaspase protease MALT1, a key regulator protease in antigen-driven signalling, which was manifested by elevated linear ubiquitination.This article is part of the themed issue 'Quantitative mass spectrometry'.
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Affiliation(s)
- Theo Klein
- Centre for Blood Research, University of British Columbia, Vancouver, BC Canada V6T 1Z3 Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, BC Canada V6T 1Z3 Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, BC Canada V6T 1Z3
| | - Rosa I Viner
- Thermo Fisher Scientific, San Jose, CA 95134, USA
| | - Christopher M Overall
- Centre for Blood Research, University of British Columbia, Vancouver, BC Canada V6T 1Z3 Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, BC Canada V6T 1Z3 Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, BC Canada V6T 1Z3
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Liang K, Ng S, Lee F, Lim J, Chung JE, Lee SS, Kurisawa M. Targeted intracellular protein delivery based on hyaluronic acid-green tea catechin nanogels. Acta Biomater 2016; 33:142-52. [PMID: 26785145 DOI: 10.1016/j.actbio.2016.01.011] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 12/31/2015] [Accepted: 01/12/2016] [Indexed: 12/31/2022]
Abstract
A novel ternary nanogel based on the self-assembly of hyaluronic acid-epigallocatechin gallate conjugates (HA-EGCG), linear polyethylenimine (PEI) and Granzyme B (GzmB) in an aqueous environment was developed for the targeted intracellular delivery of GzmB into cancer cells. Lysozyme-encapsulated HA-EGCG nanogels were first prepared and characterized. HA-EGCG nanogels exhibited smaller particle sizes and a more homogeneous size distribution than the HA counterpart. Fluorescence quenching and lysozyme activity studies revealed that EGCG moieties facilitated protein binding through physical interactions and led to the formation of stable nanogels. When CD44-overexpressing HCT-116 colon cancer cells were treated with GzmB-encapsulated HA-EGCG nanogels in vitro, a significant cytotoxic effect was observed. Caspase assays and intracellular trafficking studies confirmed that cell death was due to apoptosis triggered by the delivery of GzmB to the cytosol of those cells. In comparison, little cytotoxic effect was observed in CD44-deficient cells treated with GzmB-encapsulated HA-EGCG nanogels. This study highlights the potential utility of HA-EGCG as effective intracellular protein carriers for targeted cancer therapy. STATEMENT OF SIGNIFICANCE Intracellularly activated cytotoxic proteins can be used to kill cancer cells but viable carriers for such proteins are lacking. In this work, we developed novel nanogels based on selfassembly of hyaluronic acid (HA)-(-)-epigallocatechin-3-gallate (EGCG) conjugates, linear polyethylenemine (PEI) and the cytotoxic protein Granzyme B (GzmB) for the intracellular delivery of GzmB for cancer therapy. HA was exploited for its ability to target CD44 which are overexpressed in many types of cancer cells, while EGCG, the main component of green tea catechins, was chosen for its ability to bind to proteins. Characterization studies showed that EGCG facilitated protein complexation through physical interactions and led to the formation of stable nanogels. HA-EGCG nanogels were able to achieve CD44 targeted killing of HCT-116 cancer cells by delivering GzmB into the cytosol of these cells. We believe that the applications of the HA-EGCG nanogels can be expanded to the intracellular delivery of other cytotoxic protein drugs for cancer therapy.
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Affiliation(s)
- Kun Liang
- Institute of Bioengineering & Nanotechnology (IBN), 31 Biopolis Way, The Nanos, #04-01, Singapore 138669, Singapore
| | - Shengyong Ng
- Institute of Bioengineering & Nanotechnology (IBN), 31 Biopolis Way, The Nanos, #04-01, Singapore 138669, Singapore
| | - Fan Lee
- Institute of Bioengineering & Nanotechnology (IBN), 31 Biopolis Way, The Nanos, #04-01, Singapore 138669, Singapore
| | - Jaehong Lim
- Institute of Bioengineering & Nanotechnology (IBN), 31 Biopolis Way, The Nanos, #04-01, Singapore 138669, Singapore
| | - Joo Eun Chung
- Institute of Bioengineering & Nanotechnology (IBN), 31 Biopolis Way, The Nanos, #04-01, Singapore 138669, Singapore
| | - Su Seong Lee
- Institute of Bioengineering & Nanotechnology (IBN), 31 Biopolis Way, The Nanos, #04-01, Singapore 138669, Singapore
| | - Motoichi Kurisawa
- Institute of Bioengineering & Nanotechnology (IBN), 31 Biopolis Way, The Nanos, #04-01, Singapore 138669, Singapore.
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25
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Lysosomal cysteine peptidases – Molecules signaling tumor cell death and survival. Semin Cancer Biol 2015; 35:168-79. [DOI: 10.1016/j.semcancer.2015.08.001] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 07/31/2015] [Accepted: 08/03/2015] [Indexed: 12/18/2022]
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26
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Zimmermann FA, Neureiter D, Feichtinger RG, Trost A, Sperl W, Kofler B, Mayr JA. Deficiency of respiratory chain complex I in Hashimoto thyroiditis. Mitochondrion 2015; 26:1-6. [PMID: 26554844 DOI: 10.1016/j.mito.2015.11.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 11/05/2015] [Accepted: 11/06/2015] [Indexed: 10/22/2022]
Abstract
Oncocytic cells (OCs) are characterized by an accumulation of mitochondria and their occurrence in the thyroid gland of patients with Hashimoto thyroiditis (HT) is well known. However, their properties and functional relevance are poorly understood. We investigated OC lesions (n=212) in the thyroid of 12 HT patients. Loss of complex I protein was observed in oncocytic lesions of each of the patients. In addition to isolated complex I deficiency, 25% of oncocytic lesions showed combined deficiency of complex I and IV. Thus, we demonstrate for the first time a defect of respiratory chain complex I in OCs of HT patients.
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Affiliation(s)
- Franz A Zimmermann
- Department of Pediatrics, Paracelsus Medical University, Müllner Hauptstraße 48, A-5020 Salzburg, Austria; Research Program for Receptor Biochemistry and Tumor Metabolism, Paracelsus Medical University, Müllner Hauptstraße 48, A-5020 Salzburg, Austria.
| | - Daniel Neureiter
- Department of Pathology, Paracelsus Medical University, Müllner Hauptstraße 48, A-5020 Salzburg, Austria.
| | - René G Feichtinger
- Department of Pediatrics, Paracelsus Medical University, Müllner Hauptstraße 48, A-5020 Salzburg, Austria; Research Program for Receptor Biochemistry and Tumor Metabolism, Paracelsus Medical University, Müllner Hauptstraße 48, A-5020 Salzburg, Austria.
| | - Andrea Trost
- University Clinic of Ophthalmology and Optometry, Research Program for Ophthalmology and Glaucoma Research, Paracelsus Medical University/SALK, A-5020 Salzburg, Austria.
| | - Wolfgang Sperl
- Department of Pediatrics, Paracelsus Medical University, Müllner Hauptstraße 48, A-5020 Salzburg, Austria.
| | - Barbara Kofler
- Department of Pediatrics, Paracelsus Medical University, Müllner Hauptstraße 48, A-5020 Salzburg, Austria; Research Program for Receptor Biochemistry and Tumor Metabolism, Paracelsus Medical University, Müllner Hauptstraße 48, A-5020 Salzburg, Austria.
| | - Johannes A Mayr
- Department of Pediatrics, Paracelsus Medical University, Müllner Hauptstraße 48, A-5020 Salzburg, Austria.
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27
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Luyet C, Schulze K, Sayar BS, Howald D, Müller EJ, Galichet A. Preclinical studies identify non-apoptotic low-level caspase-3 as therapeutic target in pemphigus vulgaris. PLoS One 2015; 10:e0119809. [PMID: 25748204 PMCID: PMC4352034 DOI: 10.1371/journal.pone.0119809] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Accepted: 02/03/2015] [Indexed: 02/07/2023] Open
Abstract
The majority of pemphigus vulgaris (PV) patients suffer from a live-threatening loss of intercellular adhesion between keratinocytes (acantholysis). The disease is caused by auto-antibodies that bind to desmosomal cadherins desmoglein (Dsg) 3 or Dsg3 and Dsg1 in mucous membranes and skin. A currently unresolved controversy in PV is whether apoptosis is involved in the pathogenic process. The objective of this study was to perform preclinical studies to investigate apoptotic pathway activation in PV pathogenesis with the goal to assess its potential for clinical therapy. For this purpose, we investigated mouse and human skin keratinocyte cultures treated with PV antibodies (the experimental Dsg3 monospecific antibody AK23 or PV patients IgG), PV mouse models (passive transfer of AK23 or PVIgG into adult and neonatal mice) as well as PV patients' biopsies (n=6). A combination of TUNEL assay, analyses of membrane integrity, early apoptotic markers such as cleaved poly-ADP-ribose polymerase (PARP) and the collapse of actin cytoskeleton failed to provide evidence for apoptosis in PV pathogenesis. However, the in vitro and in vivo PV models, allowing to monitor progression of lesion formation, revealed an early, transient and low-level caspase-3 activation. Pharmacological inhibition confirmed the functional implication of caspase-3 in major events in PV such as shedding of Dsg3, keratin retraction, proliferation including c-Myc induction, p38MAPK activation and acantholysis. Together, these data identify low-level caspase-3 activation downstream of disrupted Dsg3 trans- or cis-adhesion as a major event in PV pathogenesis that is non-synonymous with apoptosis and represents, unlike apoptotic components, a promising target for clinical therapy. At a broader level, these results posit that an impairment of adhesive functions in concert with low-level, non-lethal caspase-3 activation can evoke profound cellular changes which may be of relevance for other diseases including cancer.
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Affiliation(s)
- Camille Luyet
- Molecular Dermatology, Institute of Animal Pathology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- DermFocus, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Katja Schulze
- Molecular Dermatology, Institute of Animal Pathology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- DermFocus, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Beyza S. Sayar
- Molecular Dermatology, Institute of Animal Pathology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- DermFocus, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Denise Howald
- Molecular Dermatology, Institute of Animal Pathology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- DermFocus, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Eliane J. Müller
- Molecular Dermatology, Institute of Animal Pathology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- DermFocus, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- Department of Dermatology, Inselspital, Bern University Hospital, Bern, Switzerland
| | - Arnaud Galichet
- Molecular Dermatology, Institute of Animal Pathology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- DermFocus, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- * E-mail:
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28
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Lalaoui N, Lindqvist LM, Sandow JJ, Ekert PG. The molecular relationships between apoptosis, autophagy and necroptosis. Semin Cell Dev Biol 2015; 39:63-9. [PMID: 25736836 DOI: 10.1016/j.semcdb.2015.02.003] [Citation(s) in RCA: 124] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 01/30/2015] [Accepted: 02/02/2015] [Indexed: 02/08/2023]
Abstract
Cells are constantly subjected to a vast range of potentially lethal insults, which may activate specific molecular pathways that have evolved to kill the cell. Cell death pathways are defined partly by their morphology, and more specifically by the molecules that regulate and enact them. As these pathways become more thoroughly characterized, interesting molecular links between them have emerged, some still controversial and others hinting at the physiological and pathophysiological roles these death pathways play. We describe specific molecular programs controlling cell death, with a focus on some of the distinct features of the pathways and the molecular links between them.
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Affiliation(s)
- Najoua Lalaoui
- Division of Cell Signalling and Cell Death, Walter and Eliza Hall Institute, 1G Royal Parade, Parkville, Victoria 3050, Australia; Department of Medical Biology, University of Melbourne, Parkville, Victoria 3050, Australia.
| | - Lisa M Lindqvist
- Division of Cell Signalling and Cell Death, Walter and Eliza Hall Institute, 1G Royal Parade, Parkville, Victoria 3050, Australia; Department of Medical Biology, University of Melbourne, Parkville, Victoria 3050, Australia.
| | - Jarrod J Sandow
- Division of Cell Signalling and Cell Death, Walter and Eliza Hall Institute, 1G Royal Parade, Parkville, Victoria 3050, Australia; Department of Medical Biology, University of Melbourne, Parkville, Victoria 3050, Australia.
| | - Paul G Ekert
- Division of Cell Signalling and Cell Death, Walter and Eliza Hall Institute, 1G Royal Parade, Parkville, Victoria 3050, Australia; Department of Medical Biology, University of Melbourne, Parkville, Victoria 3050, Australia; Murdoch Childrens Research Institute, Royal Children's Hospital, Flemington Rd, Parkville, Victoria 3052, Australia; Department of Paediatrics, University of Melbourne, Royal Children's Hospital, Flemington Rd, Parkville, Victoria 3052, Australia.
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29
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Wang XJ, Cao Q, Zhang Y, Su XD. Activation and regulation of caspase-6 and its role in neurodegenerative diseases. Annu Rev Pharmacol Toxicol 2014; 55:553-72. [PMID: 25340928 DOI: 10.1146/annurev-pharmtox-010814-124414] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Caspases, a family of cysteine proteases, are major mediators of apoptosis and inflammation. Caspase-6 is classified as an apoptotic effector, and it mediates nuclear shrinkage during apoptosis, but it possesses unique activation and regulation mechanisms that differ from those of other effector caspases. Furthermore, increasing evidence has shown that caspase-6 is highly involved in axon degeneration and neurodegenerative diseases, such as Huntington's disease and Alzheimer's disease. Cleavage at the caspase-6 site in mutated huntingtin protein is a prerequisite for the development of the characteristic behavioral and neuropathological features of Huntington's disease. Active caspase-6 is present in early stages of Alzheimer's disease, and caspase-6 activity is associated with the disease's pathological lesions. In this review, we discuss the evidence relevant to the role of caspase-6 in neurodegenerative diseases and summarize its activation and regulation mechanisms. In doing so, we provide new insight about potential therapeutic approaches that incorporate the modulation of caspase-6 function for the treatment of neurodegenerative diseases.
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Affiliation(s)
- Xiao-Jun Wang
- State Key Laboratory of Protein and Plant Gene Research and
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30
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Li J, Figueira SK, Vrazo ACA, Binkowski BF, Butler BL, Tabata Y, Filipovich A, Jordan MB, Risma KA. Real-time detection of CTL function reveals distinct patterns of caspase activation mediated by Fas versus granzyme B. THE JOURNAL OF IMMUNOLOGY 2014; 193:519-28. [PMID: 24928990 DOI: 10.4049/jimmunol.1301668] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Activation of caspase-mediated apoptosis is reported to be a hallmark of both granzyme B- and Fas-mediated pathways of killing by CTLs; however, the kinetics of caspase activation remain undefined owing to an inability to monitor target cell-specific apoptosis in real time. We have overcome this limitation by developing a novel biosensor assay that detects continuous, protease-specific activity in target cells. Biosensors were engineered from a circularly permuted luciferase, linked internally by either caspase 3/7 or granzyme B/caspase 8 cleavage sites, thus allowing activation upon proteolytic cleavage by the respective proteases. Coincubation of murine CTLs with target cells expressing either type of biosensor led to a robust luminescent signal within minutes of cell contact. The signal was modulated by the strength of TCR signaling, the ratio of CTL/target cells, and the type of biosensor used. Additionally, the luciferase signal at 30 min correlated with target cell death, as measured by a (51)Cr-release assay. The rate of caspase 3/7 biosensor activation was unexpectedly rapid following granzyme B- compared with Fas-mediated signal induction in murine CTLs; the latter appeared gradually after a 90-min delay in perforin- or granzyme B-deficient CTLs. Remarkably, the Fas-dependent, caspase 3/7 biosensor signal induced by perforin-deficient human CTLs was also detectable after a 90-min delay when measured by redirected killing. Thus, we have used a novel, real-time assay to demonstrate the distinct pattern of caspase activation induced by granzyme B versus Fas in human and murine CTLs.
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Affiliation(s)
- Jinzhu Li
- Division of Allergy/Immunology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229
| | - Sarah K Figueira
- Division of Allergy/Immunology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229
| | - Alexandra C A Vrazo
- Division of Allergy/Immunology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229
| | | | | | - Yasuhiro Tabata
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229
| | - Alexandra Filipovich
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45267; and
| | - Michael B Jordan
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45267; and Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229
| | - Kimberly A Risma
- Division of Allergy/Immunology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45267; and
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31
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Blessing or curse? Proteomics in granzyme research. Proteomics Clin Appl 2014; 8:351-81. [DOI: 10.1002/prca.201300096] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Revised: 11/29/2013] [Accepted: 12/21/2013] [Indexed: 01/08/2023]
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32
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Li K, Wu D, Chen X, Zhang T, Zhang L, Yi Y, Miao Z, Jin N, Bi X, Wang H, Xu J, Wang D. Current and emerging biomarkers of cell death in human disease. BIOMED RESEARCH INTERNATIONAL 2014; 2014:690103. [PMID: 24949464 PMCID: PMC4052120 DOI: 10.1155/2014/690103] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Accepted: 04/17/2014] [Indexed: 01/18/2023]
Abstract
Cell death is a critical biological process, serving many important functions within multicellular organisms. Aberrations in cell death can contribute to the pathology of human diseases. Significant progress made in the research area enormously speeds up our understanding of the biochemical and molecular mechanisms of cell death. According to the distinct morphological and biochemical characteristics, cell death can be triggered by extrinsic or intrinsic apoptosis, regulated necrosis, autophagic cell death, and mitotic catastrophe. Nevertheless, the realization that all of these efforts seek to pursue an effective treatment and cure for the disease has spurred a significant interest in the development of promising biomarkers of cell death to early diagnose disease and accurately predict disease progression and outcome. In this review, we summarize recent knowledge about cell death, survey current and emerging biomarkers of cell death, and discuss the relationship with human diseases.
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Affiliation(s)
- Kongning Li
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin 150081, China
| | - Deng Wu
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin 150081, China
| | - Xi Chen
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin 150081, China
| | - Ting Zhang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin 150081, China
| | - Lu Zhang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin 150081, China
| | - Ying Yi
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin 150081, China
| | - Zhengqiang Miao
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin 150081, China
| | - Nana Jin
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin 150081, China
| | - Xiaoman Bi
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin 150081, China
| | - Hongwei Wang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin 150081, China
| | - Jianzhen Xu
- College of Bioengineering, Henan University of Technology, Zhengzhou 450001, China
| | - Dong Wang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin 150081, China
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Kaiserman D, Stewart SE, Plasman K, Gevaert K, Van Damme P, Bird PI. Identification of Serpinb6b as a species-specific mouse granzyme A inhibitor suggests functional divergence between human and mouse granzyme A. J Biol Chem 2014; 289:9408-17. [PMID: 24505135 PMCID: PMC3979379 DOI: 10.1074/jbc.m113.525808] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Revised: 02/03/2014] [Indexed: 11/06/2022] Open
Abstract
The granzyme family serine proteases are key effector molecules expressed by cytotoxic lymphocytes. The physiological role of granzyme (Gzm) A is controversial, with significant debate over its ability to induce death in target cells. Here, we investigate the natural inhibitors of GzmA. We employed substrate phage display and positional proteomics to compare substrate specificities of mouse (m) and human (h) GzmA at the peptide and proteome-wide levels and we used the resulting substrate specificity profiles to search for potential inhibitors from the intracellular serpin family. We identified Serpinb6b as a potent inhibitor of mGzmA. Serpinb6b interacts with mGzmA, but not hGzmA, with an association constant of 1.9 ± 0.8 × 10(5) M(-1) s(-1) and a stoichiometry of inhibition of 1.8. Mouse GzmA is over five times more cytotoxic than hGzmA when delivered into P815 target cells with streptolysin O, whereas transfection of target cells with a Serpinb6b cDNA increases the EC50 value of mGzmA 13-fold, without affecting hGzmA cytotoxicity. Unexpectedly, we also found that Serpinb6b employs an exosite to specifically inhibit dimeric but not monomeric mGzmA. The identification of an intracellular inhibitor specific for mGzmA only indicates that a lineage-specific increase in GzmA cytotoxic potential has driven cognate inhibitor evolution.
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Affiliation(s)
- Dion Kaiserman
- From the Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria 3800, Australia
| | - Sarah E. Stewart
- From the Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria 3800, Australia
| | - Kim Plasman
- the Department of Medical Protein Research, VIB, and
- the Department of Biochemistry, Ghent University, B-9000 Ghent, Belgium
| | - Kris Gevaert
- the Department of Medical Protein Research, VIB, and
- the Department of Biochemistry, Ghent University, B-9000 Ghent, Belgium
| | - Petra Van Damme
- the Department of Medical Protein Research, VIB, and
- the Department of Biochemistry, Ghent University, B-9000 Ghent, Belgium
| | - Phillip I. Bird
- From the Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria 3800, Australia
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Joeckel LT, Bird PI. Are all granzymes cytotoxic in vivo? Biol Chem 2014; 395:181-202. [DOI: 10.1515/hsz-2013-0238] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2013] [Accepted: 08/30/2013] [Indexed: 01/01/2023]
Abstract
Abstract
Granzymes are serine proteases mainly found in cytotoxic lymphocytes. The most-studied member of this group is granzyme B, which is a potent cytotoxin that has set the paradigm that all granzymes are cyototoxic. In the last 5 years, this paradigm has become controversial. On one hand, there is a plethora of sometimes contradictory publications showing mainly caspase-independent cytotoxic effects of granzyme A and the so-called orphan granzymes in vitro. On the other hand, there are increasing numbers of reports of granzymes failing to induce cell death in vitro unless very high (potentially supra-physiological) concentrations are used. Furthermore, experiments with granzyme A or granzyme M knock-out mice reveal little or no deficit in their cytotoxic lymphocytes’ killing ability ex vivo, but indicate impairment in the inflammatory response. These findings of non-cytotoxic effects of granzymes challenge dogma, and thus require alternative or additional explanations to be developed of the role of granzymes in defeating pathogens. Here we review evidence for granzyme cytotoxicity, give an overview of their non-cytotoxic functions, and suggest technical improvements for future investigations.
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van Domselaar R, de Poot SAH, Bovenschen N. Proteomic profiling of proteases: tools for granzyme degradomics. Expert Rev Proteomics 2014; 7:347-59. [DOI: 10.1586/epr.10.24] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Huang Y, Li P, Xia S, Zhuo Y, Wu L. Proapoptotic effect and the mechanism of action of pingyangmycin on cavernous hemangiomas. Exp Ther Med 2013; 7:473-477. [PMID: 24396428 PMCID: PMC3881047 DOI: 10.3892/etm.2013.1428] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Accepted: 11/07/2013] [Indexed: 12/12/2022] Open
Abstract
This study aimed to investigate the proapoptotic effects and the mechanism of action of pingyangmycin (PY) on cavernous hemangioma. The rat spleen was used as a model of cavernous hemangioma. PY was injected into the spleen and the pathological changes were observed at different time-points. Apoptosis was detected using terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay and transmission electron microscopy (TEM). The expression levels of the apoptosis-related protein, caspase-3, were determined using immunohistochemistry and image analysis. Rats injected with normal saline were the control group. Injection of normal saline did not damage rat spleens. On days 2 and 5 following PY injection, the spleens exhibited slight swelling. On days 8 and 14, atrophic changes were observed and the splenic sinus endothelial cells were damaged. At various time-points following PY injection, the apoptotic cells were observed by TEM. The TUNEL assay showed that apoptosis occurred widely among the splenic sinus endothelial cells and other splenic cells. The apoptotic rate and caspase-3 expression levels increased with prolonged PY exposure. PY induced apoptosis of splenic sinus endothelial cells through the caspase-3 activation pathway, and resulted in endothelial cell necrosis and fibroblast hyperplasia.
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Affiliation(s)
- Yideng Huang
- Department of Otorhinolaryngology, The 118th Hospital of Chinese PLA, Wenzhou, Zhejiang 325000, P.R. China
| | - Ping Li
- Department of Otorhinolaryngology, General Hospital of Chengdu Military Region of PLA, Chengdu, Sichuan 610083, P.R. China
| | - Siwen Xia
- Department of Otorhinolaryngology, The 118th Hospital of Chinese PLA, Wenzhou, Zhejiang 325000, P.R. China
| | - Yang Zhuo
- Department of Otorhinolaryngology, The 118th Hospital of Chinese PLA, Wenzhou, Zhejiang 325000, P.R. China
| | - Longjun Wu
- Department of Otorhinolaryngology, The 118th Hospital of Chinese PLA, Wenzhou, Zhejiang 325000, P.R. China
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Plasma granzyme B in ST elevation myocardial infarction versus non-ST elevation acute coronary syndrome: comparisons with IL-18 and fractalkine. Mediators Inflamm 2013; 2013:343268. [PMID: 24307760 PMCID: PMC3836447 DOI: 10.1155/2013/343268] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Accepted: 09/12/2013] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE The proapoptotic protein, granzyme B (GZB), was identified as a contributor to the atherosclerotic plaque instability and recently as inflammatory activator. We studied the release kinetics of GZB and other markers of inflammation such as high sensitivity C reactive protein (hsCRP), interleukin 18 (IL-18), and fractalkine (FKN) in the early phase after acute cardiac events in different ACS subgroups. METHODS Thirty-six nondiabetic patients with ACS were compared to 12 control subjects. According to ACS diagnosis, the patients were classified into 22 patients with ST elevation myocardial infarction (STEMI) and 14 patients with non-ST elevation myocardial infarction or unstable angina (NSTEMI/UA). Blood samples were taken on day 1 (day of onset) and day 3 to measure hsCRP, IL-18, FKN, and GZB by ELISA. RESULTS Patients with ACS showed significantly higher GZB, IL-18, and FKN levels than the controls. STEMI group showed significantly higher GZB levels than NSTEMI/UA group. On day 3, FKN levels displayed a significant decrease, while GZB levels were significantly increased. IL-18 levels were more or less constant. GZB levels were positively correlated with IL-18 (r = 0.416, P < 0.01) and FKN (r = 0.58, P < 0.001). CONCLUSIONS Unlike IL-18 and FKN, plasma GZB may be a marker of ACS disease severity.
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de Poot SAH, Lai KW, van der Wal L, Plasman K, Van Damme P, Porter AC, Gevaert K, Bovenschen N. Granzyme M targets topoisomerase II alpha to trigger cell cycle arrest and caspase-dependent apoptosis. Cell Death Differ 2013; 21:416-26. [PMID: 24185622 DOI: 10.1038/cdd.2013.155] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Revised: 09/23/2013] [Accepted: 09/26/2013] [Indexed: 12/31/2022] Open
Abstract
Cytotoxic lymphocyte protease granzyme M (GrM) is a potent inducer of tumor cell death. The apoptotic phenotype and mechanism by which it induces cell death, however, remain poorly understood and controversial. Here, we show that GrM-induced cell death was largely caspase-dependent with various hallmarks of classical apoptosis, coinciding with caspase-independent G2/M cell cycle arrest. Using positional proteomics in human tumor cells, we identified the nuclear enzyme topoisomerase II alpha (topoIIα) as a physiological substrate of GrM. Cleavage of topoIIα by GrM at Leu(1280) separated topoIIα functional domains from the nuclear localization signals, leading to nuclear exit of topoIIα catalytic activity, thereby rendering it nonfunctional. Similar to the apoptotic phenotype of GrM, topoIIα depletion in tumor cells led to cell cycle arrest in G2/M, mitochondrial perturbations, caspase activation, and apoptosis. We conclude that cytotoxic lymphocyte protease GrM targets topoIIα to trigger cell cycle arrest and caspase-dependent apoptosis.
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Affiliation(s)
- S A H de Poot
- Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - K W Lai
- Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - L van der Wal
- Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - K Plasman
- 1] Department of Medical Protein Research,VIB, Ghent, B-9000, Belgium [2] Department of Biochemistry, Ghent University, Ghent B-9000, Belgium
| | - P Van Damme
- 1] Department of Medical Protein Research,VIB, Ghent, B-9000, Belgium [2] Department of Biochemistry, Ghent University, Ghent B-9000, Belgium
| | - A C Porter
- Centre for Haematology, Faculty of Medicine, Imperial College London, London, UK
| | - K Gevaert
- 1] Department of Medical Protein Research,VIB, Ghent, B-9000, Belgium [2] Department of Biochemistry, Ghent University, Ghent B-9000, Belgium
| | - N Bovenschen
- 1] Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands [2] Laboratory for Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
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Suppression of granzyme B activity and caspase-3 activation in leukaemia cells constitutively expressing the protease inhibitor 9. Ann Hematol 2013; 92:1603-9. [PMID: 23892923 DOI: 10.1007/s00277-013-1846-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Accepted: 07/09/2013] [Indexed: 12/25/2022]
Abstract
Immune surveillance against malignant cells is mediated by cytotoxic T-lymphocytes and NK-cells (CTL/NK) that induce apoptosis through the granzyme-B-dependent pathway. The serine protease inhibitor serpinB9/protease inhibitor-9 (PI-9) is a known inhibitor of granzyme B. Ectopic expression of PI-9 in tumour cells has been reported. However, the impact of PI-9 on granzyme-B-induced apoptosis in tumour cells remains unclear. The aim of this study was to investigate the influence of constitutive PI-9 expression in leukaemia cell lines on the activity of granzyme B and apoptosis induction. PI-9 negative (lymphoblastic Jurkat cells; myeloblastic U937 cells) and PI-9-expressing cell lines (myeloblastic K562 cells, EBV-transformed LCL-1 and LCL-2 B-cells, lymphoblastic Daudi cells, AML-R cells f leukaemia and the U937 subclone U937PI-9(+)). For accurate granzyme B activity determination a quantitative substrate (Ac-IEPD-pNA) cleavage assay was established and caspase-3 activation measured for apoptosis assessment. Cells were treated with a cytotoxic granule isolate that has previously been shown to induce apoptosis through granzyme B signalling. We found a robust correlation between constitutive PI-9 expression levels and the suppression of granzyme B activity. Further, inhibition of granzyme B translated into reduced caspase-3 activation. We conclude, suppression of granzyme B initiated apoptosis in PI-9-expressing cells could contribute to immune evasion and the measurement of granzyme B activity with our assay might be a useful predictive marker in immune-therapeutic approaches against cancer.
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40
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LeBlanc AC. Caspase-6 as a novel early target in the treatment of Alzheimer's disease. Eur J Neurosci 2013; 37:2005-18. [DOI: 10.1111/ejn.12250] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2012] [Revised: 04/01/2013] [Accepted: 04/06/2013] [Indexed: 12/16/2022]
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Krzewski K, Coligan JE. Human NK cell lytic granules and regulation of their exocytosis. Front Immunol 2012; 3:335. [PMID: 23162553 PMCID: PMC3494098 DOI: 10.3389/fimmu.2012.00335] [Citation(s) in RCA: 144] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2012] [Accepted: 10/22/2012] [Indexed: 12/16/2022] Open
Abstract
Natural killer (NK) cells form a subset of lymphocytes that play a key role in immuno-surveillance and host defense against cancer and viral infections. They recognize stressed cells through a variety of germline-encoded activating cell surface receptors and utilize their cytotoxic ability to eliminate abnormal cells. Killing of target cells is a complex, multi-stage process that concludes in the directed secretion of lytic granules, containing perforin and granzymes, at the immunological synapse. Upon delivery to a target cell, perforin mediates generation of pores in membranes of target cells, allowing granzymes to access target cell cytoplasm and induce apoptosis. Therefore, lytic granules of NK cells are indispensable for normal NK cell cytolytic function. Indeed, defects in lytic granule secretion lead or are related to serious and often fatal diseases, such as familial hemophagocytic lymphohistiocytosis (FHL) type 2–5 or Griscelli syndrome type 2. A number of reports highlight the role of several proteins involved in lytic granule release and NK cell-mediated killing of tumor cells. This review focuses on lytic granules of human NK cells and the advancements in understanding the mechanisms controlling their exocytosis.
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Affiliation(s)
- Konrad Krzewski
- Receptor Cell Biology Section, Laboratory of Immunogenetics, National Institute of Allergy and Infectious Diseases, National Institutes of Health Rockville, MD, USA
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Viswanathan K, Bot I, Liu L, Dai E, Turner PC, Togonu-Bickersteth B, Richardson J, Davids JA, Williams JM, Bartee MY, Chen H, van Berkel TJC, Biessen EAL, Moyer RW, Lucas AR. Viral cross-class serpin inhibits vascular inflammation and T lymphocyte fratricide; a study in rodent models in vivo and human cell lines in vitro. PLoS One 2012; 7:e44694. [PMID: 23049756 PMCID: PMC3458838 DOI: 10.1371/journal.pone.0044694] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2011] [Accepted: 08/10/2012] [Indexed: 12/25/2022] Open
Abstract
Poxviruses express highly active inhibitors, including serine proteinase inhibitors (serpins), designed to target host immune defense pathways. Recent work has demonstrated clinical efficacy for a secreted, myxomaviral serpin, Serp-1, which targets the thrombotic and thrombolytic proteases, suggesting that other viral serpins may have therapeutic application. Serp-2 and CrmA are intracellular cross-class poxviral serpins, with entirely distinct functions from the Serp-1 protein. Serp-2 and CrmA block the serine protease granzyme B (GzmB) and cysteine proteases, caspases 1 and 8, in apoptotic pathways, but have not been examined for extracellular anti-inflammatory activity. We examined the ability of these cross-class serpins to inhibit plaque growth after arterial damage or transplant and to reduce leukocyte apoptosis. We observed that purified Serp-2, but not CrmA, given as a systemic infusion after angioplasty, transplant, or cuff-compression injury markedly reduced plaque growth in mouse and rat models in vivo. Plaque growth was inhibited both locally at sites of surgical trauma, angioplasty or transplant, and systemically at non-injured sites in ApoE-deficient hyperlipidemic mice. With analysis in vitro of human cells in culture, Serp-2 selectively inhibited T cell caspase activity and blocked cytotoxic T cell (CTL) mediated killing of T lymphocytes (termed fratricide). Conversely, both Serp-2 and CrmA inhibited monocyte apoptosis. Serp-2 inhibitory activity was significantly compromised either in vitro with GzmB antibody or in vivo in ApoE/GzmB double knockout mice. Conclusions The viral cross-class serpin, Serp-2, that targets both apoptotic and inflammatory pathways, reduces vascular inflammation in a GzmB-dependent fashion in vivo, and inhibits human T cell apoptosis in vitro. These findings indicate that therapies targeting Granzyme B and/or T cell apoptosis may be used to inhibit T lymphocyte apoptosis and inflammation in response to arterial injury.
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Affiliation(s)
| | - Ilze Bot
- Division of Biopharmaceutics, Leiden/Amsterdam Center for Drug Research, Leiden, The Netherlands
- University of Maastracht, Maastracht, The Netherlands
| | - Liying Liu
- Vascular Biology Research Group, Robarts' Research Institute, London, Canada
- Department of Medicine, Divisions of Cardiovascular Medicine and Rheumatology, University of Florida, Gainesville, Florida, United States of America
| | - Erbin Dai
- Vascular Biology Research Group, Robarts' Research Institute, London, Canada
- Department of Medicine, Divisions of Cardiovascular Medicine and Rheumatology, University of Florida, Gainesville, Florida, United States of America
| | - Peter C. Turner
- Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, Florida, United States of America
| | - Babajide Togonu-Bickersteth
- Vascular Biology Research Group, Robarts' Research Institute, London, Canada
- Department of Medicine, Divisions of Cardiovascular Medicine and Rheumatology, University of Florida, Gainesville, Florida, United States of America
| | - Jakob Richardson
- Vascular Biology Research Group, Robarts' Research Institute, London, Canada
| | - Jennifer A. Davids
- Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, Florida, United States of America
| | - Jennifer M. Williams
- Department of Medicine, Divisions of Cardiovascular Medicine and Rheumatology, University of Florida, Gainesville, Florida, United States of America
| | - Mee Y. Bartee
- Department of Medicine, Divisions of Cardiovascular Medicine and Rheumatology, University of Florida, Gainesville, Florida, United States of America
- Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, Florida, United States of America
| | - Hao Chen
- Department of Medicine, Divisions of Cardiovascular Medicine and Rheumatology, University of Florida, Gainesville, Florida, United States of America
| | - Theo J. C. van Berkel
- Division of Biopharmaceutics, Leiden/Amsterdam Center for Drug Research, Leiden, The Netherlands
- University of Maastracht, Maastracht, The Netherlands
| | - Erik A. L. Biessen
- Division of Biopharmaceutics, Leiden/Amsterdam Center for Drug Research, Leiden, The Netherlands
- University of Maastracht, Maastracht, The Netherlands
| | - Richard W. Moyer
- Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, Florida, United States of America
| | - Alexandra R. Lucas
- Vascular Biology Research Group, Robarts' Research Institute, London, Canada
- Department of Medicine, Divisions of Cardiovascular Medicine and Rheumatology, University of Florida, Gainesville, Florida, United States of America
- Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, Florida, United States of America
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Wang LS, Xia L, Shen SM, Zheng Y, Yu Y, Chen GQ. Dissecting cell death with proteomic scalpels. Proteomics 2012; 12:597-606. [DOI: 10.1002/pmic.201100353] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2011] [Revised: 09/22/2011] [Accepted: 09/26/2011] [Indexed: 01/07/2023]
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Stewart SE, Mangan MSJ, Bird PI, Kaiserman D. Detection of human and mouse granzyme B activity in cell extracts. Methods Mol Biol 2012; 844:251-260. [PMID: 22262448 DOI: 10.1007/978-1-61779-527-5_18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The serine protease granzyme B (GrB) is a key effector molecule in cell-mediated immunity, released by cytotoxic lymphocytes (CLs) to induce cell death in neoplastic or virus-infected cells. The ability to detect and measure GrB activity is important for understanding CLs. Unfortunately, such analyses are complicated by significant differences in the substrate specificities of human and mouse GrB, which is reflected by their different activities on commonly used peptide substrates. Here, we present methods for the detection of active human and mouse GrB in extracts from primary cells, and evaluate the sensitivity of the various substrates and inhibitors. Mouse splenocytes produce approximately 120-fold more GrB than similarly activated human cells, which allows the use of the hGrB substrate IETD-AFC to follow mouse GrB activity despite its unfavourable kinetic properties.
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Affiliation(s)
- Sarah Elizabeth Stewart
- Department of Biochemistry and Molecular Biology, School of Biomedical Sciences, Monash University, Clayton, VIC, Australia
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Abstract
Granzymes (Grs) were discovered just over a quarter century ago. They are produced by cytotoxic T cells and natural killer cells and are released upon interaction with target cells. Intensive biochemical, genetic, and biological studies have been performed in order to study their roles in immunity and inflammation. This review summarizes research on the family of Grs.
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van Domselaar R, Bovenschen N. Cell death-independent functions of granzymes: hit viruses where it hurts. Rev Med Virol 2011; 21:301-14. [PMID: 21714121 DOI: 10.1002/rmv.697] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2011] [Revised: 05/03/2011] [Accepted: 05/06/2011] [Indexed: 12/24/2022]
Abstract
Granule exocytosis by cytotoxic lymphocytes is the key mechanism of our immune response to eliminate virus-infected cells. These lytic granules contain the pore-forming protein perforin and a set of five serine proteases called granzymes (GrA, GrB, GrH, GrK, GrM) that display distinct substrate specificities. Granzymes have mostly been studied for their ability to induce cell death. However, viruses have evolved many inhibitors to effectively block apoptosis. Evidence is emerging that granzymes also use noncytotoxic strategies to inhibit viral replication and potential viral reactivation from latency. Granzymes directly cleave viral or host cell proteins that are required in the viral life cycle. Furthermore, granzymes induce a pro-inflammatory cytokine response to create an antiviral environment. In this review, we summarize and discuss these novel strategies by which the immune system counteracts viral infections, and we will address the potential therapeutic applications that could emerge from this intriguing mechanism.
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Affiliation(s)
- Robert van Domselaar
- Department of Pathology, University Medical Center Utrecht, Utrecht, the Netherlands
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48
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Hassin D, Garber OG, Meiraz A, Schiffenbauer YS, Berke G. Cytotoxic T lymphocyte perforin and Fas ligand working in concert even when Fas ligand lytic action is still not detectable. Immunology 2011; 133:190-6. [PMID: 21517838 DOI: 10.1111/j.1365-2567.2011.03426.x] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
The reason(s) why individual cytotoxic T lymphocytes (CTL) possess a fast-acting, perforin/granzyme-mediated, as well as a much slower, Fas ligand (FasL) -driven killing mechanism is not clear, nor is the basis for wide variations in killing activity exhibited by individual CTL, ranging from minutes to hours. We show that perforin expression among individual, conjugated CTL varies widely, which can account for the heterogeneity in killing speeds exhibited by individual CTL. Despite a 2-hr lag in FasL-based killing, CTL lytic action is enhanced when the two mechanisms operate in concert. This is explained by finding that the two pathways in fact are jump-started simultaneously with the lag in FasL lytic action reflecting pre-lytic caspase-8 activation and BH3-interacting domain (BID) cleavage. The complementary action of the two lytic pathways, co-expressed at varying levels among individual CTL, facilitates the lytic action of late-stage poor perforin-expressing CTL, ensuring optimal cytocidal action throughout the CTL response.
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Affiliation(s)
- David Hassin
- Internal Medicine Department H, Tel-Aviv Sourasky Medical Centre, Tel-Aviv Department of Immunology, Weizmann Institute of Science, Rehovot Cell Kinetics, Lod, Israel
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Wang L, Chen G. Current advances in the application of proteomics in apoptosis research. SCIENCE CHINA-LIFE SCIENCES 2011; 54:209-19. [DOI: 10.1007/s11427-010-4123-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2010] [Accepted: 05/26/2010] [Indexed: 01/18/2023]
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hSMG-1 is a granzyme B-associated stress-responsive protein kinase. J Mol Med (Berl) 2011; 89:411-21. [DOI: 10.1007/s00109-010-0708-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2010] [Revised: 11/24/2010] [Accepted: 11/25/2010] [Indexed: 10/18/2022]
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