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Kgokolo MCM, Malinga NZ, Steel HC, Meyer PWA, Smit T, Anderson R, Rapoport BL. Transforming growth factor-β1 and soluble co-inhibitory immune checkpoints as putative drivers of immune suppression in patients with basal cell carcinoma. Transl Oncol 2024; 42:101867. [PMID: 38308919 PMCID: PMC10847768 DOI: 10.1016/j.tranon.2023.101867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 11/30/2023] [Accepted: 12/13/2023] [Indexed: 02/05/2024] Open
Abstract
The current study compared the levels and possible associations between systemic soluble immune checkpoints (sICPs, n = 17) and a group of humoral modulators of immune suppressor cells (n = 7) in a cohort of patients with basal cell carcinoma (BCC, n = 40) and a group of healthy control subjects (n = 20). The seven humoral modulators of immunosuppressor cells were represented by the enzymes, arginase 1 and fibroblast activation protein (FAP), the chemokine, RANTES (CCL5) and the cytokines, interleukin-10 and transforming growth factor-β1 (TGF-β1), as well as the M2-type macrophage markers, soluble CD163 (sCD163) and sCD206. The plasma levels of six co-inhibitory sICPs, sCTLA-4, sLAG-3, sPD-1, sPD-L1, sTIM-3 and sPD-L2 were significantly elevated in the cohort of BCC patients (p<0.001-p<0.00001), while that of sBTLA was significantly decreased (p<0.006). Of the co-stimulatory sICPs, sCD27 and sGITR were significantly increased (p<0.0002 and p<0.0538) in the cohort of BCC patients, while the others were essentially comparable with those of the control participants; of the dual active sICPs, sHVEM was significantly elevated (p<0.00001) and TLR2 comparable with the control group. A correlation heat map revealed selective, strong associations of TGF-β1 with seven co-stimulatory (z = 0.618468-0.768131) and four co-inhibitory (z = 0.674040-0.808365) sICPs, as well as with sTLR2 (z = 0.696431). Notwithstanding the association of BCC with selective elevations in the levels of a large group of co-inhibitory sICPs, our novel findings also imply the probable involvement of TGF-β1 in driving immunosuppression in this malignancy, possibly via activation of regulatory T cells. Notably, these abnormalities were present in patients with either newly diagnosed or recurrent disease.
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Affiliation(s)
- Mahlatse C M Kgokolo
- Department of Dermatology, School of Medicine, Faculty of Health Sciences, University of Pretoria and Steve Biko Academic Hospital, Pretoria, South Africa.
| | - Nonkululeko Z Malinga
- Department of Dermatology, School of Medicine, Faculty of Health Sciences, University of Pretoria and Steve Biko Academic Hospital, Pretoria, South Africa
| | - Helen C Steel
- Department of Immunology, School of Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Pieter W A Meyer
- Department of Immunology, School of Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa; Tshwane Academic Division of the National Health Laboratory Service, Pretoria, South Africa
| | - Teresa Smit
- The Medical Oncology Centre of Rosebank, Saxonwold, Johannesburg, South Africa
| | - Ronald Anderson
- Department of Immunology, School of Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Bernardo L Rapoport
- Department of Immunology, School of Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa; The Medical Oncology Centre of Rosebank, Saxonwold, Johannesburg, South Africa.
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Russo RS, Gasperini S, Bubb G, Neuman L, Sloan LS, Diaz GA, Enns GM. Efficacy and safety of pegzilarginase in arginase 1 deficiency (PEACE): a phase 3, randomized, double-blind, placebo-controlled, multi-centre trial. EClinicalMedicine 2024; 68:102405. [PMID: 38292042 PMCID: PMC10825663 DOI: 10.1016/j.eclinm.2023.102405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/13/2023] [Accepted: 12/14/2023] [Indexed: 02/01/2024] Open
Abstract
Background Arginase 1 Deficiency (ARG1-D) is a rare debilitating, progressive, inherited, metabolic disease characterized by marked increases in plasma arginine (pArg) and its metabolites, with increased morbidity, substantial reductions in quality of life, and premature mortality. Effective treatments that can lower arginine and improve clinical outcomes is currently lacking. Pegzilarginase is a novel human arginase 1 enzyme therapy. The present trial aimed to demonstrate efficacy of pegzilarginase on pArg and key mobility outcomes. Methods This Phase 3 randomized, double-blind, placebo-controlled, parallel-group clinical trial (clinicaltrials.govNCT03921541, EudraCT 2018-004837-34), randomized patients with ARG1-D 2:1 to intravenously/subcutaneously once-weekly pegzilarginase or placebo in conjunction with their individualized disease management. It was conducted in 7 countries; United States, United Kingdom, Canada, Austria, France, Germany, Italy. Primary endpoint was change from baseline in pArg after 24 weeks; key secondary endpoints were change from baseline at Week 24 in Gross Motor Function Measure part E (GMFM-E) and 2-min walk test (2MWT). Full Analysis Set was used for the analyses. Findings From 01 May 2019 to 29 March 2021, 32 patients were enrolled and randomized (pegzilarginase, n = 21; placebo, n = 11). Pegzilarginase lowered geometric mean pArg from 354.0 μmol/L to 86.4 μmol/L at Week 24 vs 464.7 to 426.6 μmol/L for placebo (95% CI: -67.1%, -83.5%; p < 0.0001) and normalized levels in 90.5% of patients (vs 0% with placebo). In addition, clinically relevant functional mobility improvements were demonstrated with pegzilarginase treatment. These effects were sustained long-term through additional 24 weeks of subsequent exposure. Pegzilarginase was well-tolerated, with adverse events being mostly transient and mild/moderate in severity. Interpretation These results support pegzilarginase as the first potential treatment to normalize pArg in ARG1-D and achieve clinically meaningful improvements in functional mobility. Funding Aeglea BioTherapeutics.
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Affiliation(s)
- Rossana Sanchez Russo
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, United States
| | - Serena Gasperini
- Paediatric Department, Fondazione IRCSS San Gerardo dei Tintori, Monza, Italy
| | - Gillian Bubb
- Aeglea BioTherapeutics, Inc., Austin, TX, United States
| | - Linda Neuman
- Aeglea BioTherapeutics, Inc., Austin, TX, United States
| | | | - George A. Diaz
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York City, NY, United States
| | - Gregory M. Enns
- Division of Medical Genetics, Department of Pediatrics, Stanford University School of Medicine and Lucille Packard Children's Hospital, Stanford, CA, United States
| | - PEACE Investigators
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, United States
- Paediatric Department, Fondazione IRCSS San Gerardo dei Tintori, Monza, Italy
- Aeglea BioTherapeutics, Inc., Austin, TX, United States
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York City, NY, United States
- Division of Medical Genetics, Department of Pediatrics, Stanford University School of Medicine and Lucille Packard Children's Hospital, Stanford, CA, United States
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Bokil AA, Le Boulvais Børkja M, Wolowczyk C, Lamsal A, Prestvik WS, Nonstad U, Pettersen K, Andersen SB, Bofin AM, Bjørkøy G, Hak S, Giambelluca MS. Discovery of a new marker to identify myeloid cells associated with metastatic breast tumours. Cancer Cell Int 2023; 23:279. [PMID: 37980483 PMCID: PMC10656772 DOI: 10.1186/s12935-023-03136-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 11/10/2023] [Indexed: 11/20/2023] Open
Abstract
BACKGROUND Myeloid cells play an essential role in cancer metastasis. The phenotypic diversity of these cells during cancer development has attracted great interest; however, their functional heterogeneity and plasticity have limited their role as prognostic markers and therapeutic targets. METHODS To identify markers associated with myeloid cells in metastatic tumours, we compared transcriptomic data from immune cells sorted from metastatic and non-metastatic mammary tumours grown in BALB/cJ mice. To assess the translational relevance of our in vivo findings, we assessed human breast cancer biopsies and evaluated the association between arginase 1 protein expression in breast cancer tissues with tumour characteristics and patient outcomes. RESULTS Among the differentially expressed genes, arginase 1 (ARG1) showed a unique expression pattern in tumour-infiltrating myeloid cells that correlated with the metastatic capacity of the tumour. Even though ARG1-positive cells were found almost exclusively inside the metastatic tumour, ARG1 protein was also present in the plasma. In human breast cancer biopsies, the presence of ARG1-positive cells was strongly correlated with high-grade proliferating tumours, poor prognosis, and low survival. CONCLUSION Our findings highlight the potential use of ARG1-positive myeloid cells as an independent prognostic marker to evaluate the risk of metastasis in breast cancer patients.
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Affiliation(s)
- Ansooya A Bokil
- Department of Circulation and Medical Imaging, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
- Centre of Molecular Inflammation Research (CEMIR), Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
| | - Mathieu Le Boulvais Børkja
- Department of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
| | - Camilla Wolowczyk
- Centre of Molecular Inflammation Research (CEMIR), Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
- Department of Biomedical Laboratory Science, Faculty of Natural Sciences, Norwegian University of Science and Technology, Trondheim, Norway
| | - Apsana Lamsal
- Centre of Molecular Inflammation Research (CEMIR), Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
- Department of Biomedical Laboratory Science, Faculty of Natural Sciences, Norwegian University of Science and Technology, Trondheim, Norway
| | - Wenche S Prestvik
- Department of Biomedical Laboratory Science, Faculty of Natural Sciences, Norwegian University of Science and Technology, Trondheim, Norway
| | - Unni Nonstad
- Centre of Molecular Inflammation Research (CEMIR), Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
| | - Kristine Pettersen
- Centre of Molecular Inflammation Research (CEMIR), Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
- Department of Biomedical Laboratory Science, Faculty of Natural Sciences, Norwegian University of Science and Technology, Trondheim, Norway
| | - Sonja B Andersen
- Centre of Molecular Inflammation Research (CEMIR), Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
- Department of Biomedical Laboratory Science, Faculty of Natural Sciences, Norwegian University of Science and Technology, Trondheim, Norway
| | - Anna M Bofin
- Department of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
| | - Geir Bjørkøy
- Centre of Molecular Inflammation Research (CEMIR), Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
- Department of Biomedical Laboratory Science, Faculty of Natural Sciences, Norwegian University of Science and Technology, Trondheim, Norway
| | - Sjoerd Hak
- Department of Circulation and Medical Imaging, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
- Department of Biotechnology and Nanomedicine, SINTEF, Trondheim, Norway
| | - Miriam S Giambelluca
- Centre of Molecular Inflammation Research (CEMIR), Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway.
- Department of Clinical Medicine, Faculty of Health Science, UiT- The Arctic University of Norway, Tromsø, Norway.
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Zhang J, Li L, Liu Q, Zhao Z, Su D, Xiao C, Jin T, Chen L, Xu C, You Z, Zhou T. Gastrodin programs an Arg-1 + microglial phenotype in hippocampus to ameliorate depression- and anxiety-like behaviors via the Nrf2 pathway in mice. Phytomedicine 2023; 113:154725. [PMID: 36867963 DOI: 10.1016/j.phymed.2023.154725] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 02/05/2023] [Accepted: 02/20/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Regulating the microglial phenotype is an attractive strategy for treating diseases of the central nervous system such as depression and anxiety. Gastrodin can quickly cross the blood-brain barrier and mitigate microglia-mediated inflammation, which widely used to treat a variety of central nervous system diseases associated with microglial dysfunction. However, the molecular mechanism by which gastrodin regulates the functional phenotype of microglia remains unclear. PURPOSE Since the transcription factor "nuclear factor erythroid 2-related factor 2″ (Nrf2) is associated with the anti-inflammatory effects of gastrodin, we hypothesized that gastrodin induces Nrf2 expression in microglia and thereby programs an anti-inflammatory phenotype. STUDY DESIGN Male C57BL/6 mice, treated or not with gastrodin, were given lipopolysaccharide (LPS) at 0.25 mg/kg/d for 10 days to induce chronic neuroinflammation. The effects of gastrodin on microglial phenotypes, neuroinflammation and depression- and anxiety-like behaviors were evaluated. In another experiment, animals were treated with Nrf2 inhibitor ML385 throughout the 13-day gastrodin intervention period. METHODS The effects of gastrodin on depression- and anxiety-like behaviors were evaluated through the sucrose preference test, forced swimming test, open field test and elevated plus-maze test; as well as its effects on morphology and molecular and functional phenotypes of hippocampal microglia through immunohistochemistry, real-time PCR and enzyme-linked immunosorbent assays. RESULTS Chronic exposure to LPS caused hippocampal microglia to secrete inflammatory cytokines, their somata to enlarge, and their dendrites to lose branches. These changes were associated with depression- and anxiety-like behaviors. Gastrodin blocked these LPS-induced alterations and promoted an Arg-1+ microglial phenotype that protected neurons from injury. The effects of gastrodin were associated with Nrf2 activation, whereas blockade of Nrf2 antagonized gastrodin. CONCLUSION These results suggest that gastrodin acts via Nrf2 to promote an Arg-1+ microglial phenotype, which buffers the harmful effects of LPS-induced neuroinflammation. Gastrodin may be a promising drug against central nervous system diseases that involve microglial dysfunction.
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Affiliation(s)
- Jinqiang Zhang
- Resource Institute for Chinese & Ethnic Materia Medica, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China.
| | - Liangyuan Li
- Resource Institute for Chinese & Ethnic Materia Medica, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Qin Liu
- Resource Institute for Chinese & Ethnic Materia Medica, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Zhihuang Zhao
- Resource Institute for Chinese & Ethnic Materia Medica, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Dapeng Su
- Resource Institute for Chinese & Ethnic Materia Medica, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Chenghong Xiao
- Resource Institute for Chinese & Ethnic Materia Medica, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Ting Jin
- Resource Institute for Chinese & Ethnic Materia Medica, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Li Chen
- Resource Institute for Chinese & Ethnic Materia Medica, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Chunyun Xu
- Resource Institute for Chinese & Ethnic Materia Medica, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Zili You
- School of Life Science and Technology, Center for Informational Biology, University of Electronic Science and Technology of China, Chengdu 610054, China.
| | - Tao Zhou
- Resource Institute for Chinese & Ethnic Materia Medica, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China.
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Tanito K, Nii T, Yokoyama Y, Oishi H, Shibata M, Hijii S, Kaneko R, Tateishi C, Ito S, Kishimura A, Mori T, Katayama Y. Engineered macrophages acting as a trigger to induce inflammation only in tumor tissues based on arginase 1-responsive TNF-α accelerated release. J Control Release 2023:S0168-3659(23)00260-2. [PMID: 37080897 DOI: 10.1016/j.jconrel.2023.04.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 03/23/2023] [Accepted: 04/05/2023] [Indexed: 04/22/2023]
Abstract
Herein, we report engineered macrophages, termed "MacTrigger," acting as a trigger to induce an inflammatory environment only in tumor tissues. This led to intensive anti-tumor effects based on the removal potential of foreign substances. The strength of this study is the utilization of two unique functions of macrophages: (1) their ability to migrate to tumor tissues and (2) polarization into the anti-inflammatory M2 phenotype in the presence of tumor tissues. The MacTrigger accelerated the release of inflammatory cytokines, tumor necrosis factor-alpha (TNF-α), when it was polarized to the M2 phenotype. When the MacTrigger was administered to tumor-bearing mice, tumor growth was significantly inhibited compared with the non-treatment group, the un-transfected macrophages group, and the group with engineered macrophages capable of randomly releasing TNF-α. Additionally, the ratio of the M1 phenotype to the M2 phenotype in tumor tissues was >1 only in the MacTrigger group. Moreover, the ratios of natural killer cells and CD8+T cells in tumor tissues were increased compared with other groups. These results indicate that MacTrigger can induce inflammation in tumor tissues, leading to effective anti-tumor effects. In normal tissues, especially the liver, notable side effects were not observed. This is because, in the liver, the MacTrigger was not polarized to the M2 phenotype and could not induce inflammation. These results suggest that the MacTrigger is a "trigger" that can induce inflammation only in tumor tissues, then allowing the body to attack tumor tissues through the innate immunity system.
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Affiliation(s)
- Kenta Tanito
- Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Teruki Nii
- Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Yuta Yokoyama
- Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Haruka Oishi
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Mayuka Shibata
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Shoichi Hijii
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Ryosuke Kaneko
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Chuya Tateishi
- Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Shoko Ito
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Akihiro Kishimura
- Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; Center for Future Chemistry, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; International Research Center for Molecular Systems, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Takeshi Mori
- Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; Center for Future Chemistry, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yoshiki Katayama
- Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; Center for Future Chemistry, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; International Research Center for Molecular Systems, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; Center for Advanced Medical Innovation, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; Department of Biomedical Engineering, Chung Yuan Christian University, 200 Chung Pei Road, Chung Li 32023, Taiwan, ROC.
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Wang HY, Yang FC, Yang CF, Liu YC, Ko PS, Li CJ, Tsai CK, Chung YL, Chen NJ. Surface TREM2 on circulating M-MDSCs as a novel prognostic factor for adults with treatment-naïve diffuse large B-cell lymphoma. Exp Hematol Oncol 2023; 12:35. [PMID: 37029450 PMCID: PMC10080769 DOI: 10.1186/s40164-023-00399-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 03/27/2023] [Indexed: 04/09/2023] Open
Abstract
INTRODUCTION Circulating monocytic myeloid-derived suppressive cells (M-MDSCs) are implicated as a poor prognostic factor and cause CAR T-cell failure in diffuse large B-cell lymphoma (DLBCL). Triggering receptors expressed on myeloid cells 2 (TREM2) are a transmembrane glycoprotein that polarize macrophages to anti-inflammation phenotype but have never been explored on M-MDSCs. This study aims to elucidate the expression and clinical impact of surface TREM2 on circulating M-MDSCs derived from DLBCL adults. METHODS This prospective, observational study enrolled 100 adults with newly diagnosed and treatment-naïve DLBCL from May 2019 to October 2021. Human circulating M-MDSCs were obtained from freshly isolated peripheral blood, and each patient's surface-TREM2 level on M-MDSCs was normalized via a healthy control at the same performance of flow-cytometry analysis. Murine MDSCs derived from bone marrow (BM-MDSCs) were adopted to assess the link between Trem2 and cytotoxic T lymphocytes. RESULTS More circulating M-MDSCs at diagnosis of DLBCL predicted worse progression-free (PFS) and overall survival (OS). Patients with higher IPI scores, bone marrow involvement, or lower absolute counts of CD4+ or CD8+ T cells in PB had significantly higher normalized TREM2 levels on M-MDSCs. Additionally, normalized TREM2 levels on M-MDSCs could be grouped into low (< 2%), medium (2-44%), or high (> 44%) levels, and a high normalized TREM2 level on M-MDSCs was proven as an independent prognostic factor for both PFS and OS via multivariate Cox regression analysis and associated with worst PFS and OS. Interestingly, normalized levels of surface TREM2 on M-MDSCs were negatively associated with absolute counts of PB CD8+ T cells and positively correlated with levels of intracellular arginase 1 (ARG1) within M-MDSCs. Wild-type BM-MDSCs had significantly higher mRNA levels of Arg1 and showed more prominent ability to suppress the proliferation of co-cultured CD8+ T cells than BM-MDSCs from Trem2 knockout mice, and the suppressive ability could be impaired by adding Arg1 inhibitors (CB1158) or supplementing L-arginine. CONCLUSION In treatment-naïve DLBCL adults, a high surface-TREM2 level on circulating M-MDSCs is a poor prognostic factor for both PFS and OS and warrants further investigation for its potential as a novel target in immunotherapy.
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Affiliation(s)
- Hao-Yuan Wang
- Division of Hematology and Oncology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Program in Molecular Medicine, School of Life Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Fu-Chen Yang
- Institute of Microbiology and Immunology, School of Life Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Ching-Fen Yang
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yao-Chung Liu
- Division of Hematology and Oncology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Po-Shen Ko
- Division of Hematology and Oncology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chien-Jung Li
- Institute of Microbiology and Immunology, School of Life Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chun-Kuang Tsai
- Division of Hematology and Oncology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Yi-Lin Chung
- Institute of Genome Sciences, School of Life Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Nien-Jung Chen
- Program in Molecular Medicine, School of Life Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan.
- Institute of Microbiology and Immunology, School of Life Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan.
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Wang X, Xiang H, Toyoshima Y, Shen W, Shichi S, Nakamoto H, Kimura S, Sugiyama K, Homma S, Miyagi Y, Taketomi A, Kitamura H. Arginase-1 inhibition reduces migration ability and metastatic colonization of colon cancer cells. Cancer Metab 2023; 11:1. [PMID: 36639644 PMCID: PMC9838026 DOI: 10.1186/s40170-022-00301-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 12/14/2022] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND Arginase-1 (ARG1), a urea cycle-related enzyme, catalyzes the hydrolysis of arginine to urea and ornithine, which regulates the proliferation, differentiation, and function of various cells. However, it is unclear whether ARG1 controls the progression and malignant alterations of colon cancer. METHODS We established metastatic colonization mouse model and ARG1 overexpressing murine colon cancer CT26 cells to investigate whether activation of ARG1 was related to malignancy of colon cancer cells in vivo. Living cell numbers and migration ability of CT26 cells were evaluated in the presence of ARG inhibitor in vitro. RESULTS Inhibition of arginase activity significantly suppressed the proliferation and migration ability of CT26 murine colon cancer cells in vitro. Overexpression of ARG1 in CT26 cells reduced intracellular L-arginine levels, enhanced cell migration, and promoted epithelial-mesenchymal transition. Metastatic colonization of CT26 cells in lung and liver tissues was significantly augmented by ARG1 overexpression in vivo. ARG1 gene expression was higher in the tumor tissues of liver metastasis than those of primary tumor, and arginase inhibition suppressed the migration ability of HCT116 human colon cancer cells. CONCLUSION Activation of ARG1 is related to the migration ability and metastatic colonization of colon cancer cells, and blockade of this process may be a novel strategy for controlling cancer malignancy.
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Affiliation(s)
- Xiangdong Wang
- grid.39158.360000 0001 2173 7691Division of Functional Immunology, Section of Disease Control, Institute for Genetic Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-0815 Japan
| | - Huihui Xiang
- grid.39158.360000 0001 2173 7691Division of Functional Immunology, Section of Disease Control, Institute for Genetic Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-0815 Japan ,grid.414944.80000 0004 0629 2905Molecular Pathology and Genetics Division, Kanagawa Cancer Center Research Institute, Yokohama, 241-8515 Japan
| | - Yujiro Toyoshima
- grid.39158.360000 0001 2173 7691Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, 060-8638 Japan
| | - Weidong Shen
- grid.39158.360000 0001 2173 7691Division of Functional Immunology, Section of Disease Control, Institute for Genetic Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-0815 Japan
| | - Shunsuke Shichi
- grid.39158.360000 0001 2173 7691Division of Functional Immunology, Section of Disease Control, Institute for Genetic Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-0815 Japan ,grid.39158.360000 0001 2173 7691Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, 060-8638 Japan
| | - Hiroki Nakamoto
- grid.39158.360000 0001 2173 7691Division of Functional Immunology, Section of Disease Control, Institute for Genetic Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-0815 Japan ,grid.39158.360000 0001 2173 7691Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, 060-8638 Japan
| | - Saori Kimura
- grid.39158.360000 0001 2173 7691Division of Functional Immunology, Section of Disease Control, Institute for Genetic Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-0815 Japan ,grid.39158.360000 0001 2173 7691Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, 060-8638 Japan
| | - Ko Sugiyama
- grid.39158.360000 0001 2173 7691Division of Functional Immunology, Section of Disease Control, Institute for Genetic Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-0815 Japan ,grid.39158.360000 0001 2173 7691Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, 060-8638 Japan
| | - Shigenori Homma
- grid.39158.360000 0001 2173 7691Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, 060-8638 Japan
| | - Yohei Miyagi
- grid.414944.80000 0004 0629 2905Molecular Pathology and Genetics Division, Kanagawa Cancer Center Research Institute, Yokohama, 241-8515 Japan
| | - Akinobu Taketomi
- grid.39158.360000 0001 2173 7691Department of Gastroenterological Surgery I, Hokkaido University Graduate School of Medicine, Sapporo, 060-8638 Japan
| | - Hidemitsu Kitamura
- grid.39158.360000 0001 2173 7691Division of Functional Immunology, Section of Disease Control, Institute for Genetic Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-0815 Japan
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8
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Brigo N, Pfeifhofer-Obermair C, Demetz E, Tymoszuk P, Weiss G. Flow Cytometric Characterization of Macrophages Infected in vitro with Salmonella enterica Serovar Typhimurium Expressing Red Fluorescent Protein. Bio Protoc 2022; 12:e4440. [PMID: 35799903 PMCID: PMC9243511 DOI: 10.21769/bioprotoc.4440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 04/19/2022] [Indexed: 12/29/2022] Open
Abstract
Macrophages are important for host defense against intracellular pathogens like Salmonella and can be differentiated into two major subtypes. M1 macrophages, which are pro-inflammatory and induce antimicrobial immune effector mechanisms, including the expression of inducible nitric oxide synthase (iNOS), and M2 macrophages, which exert anti-inflammatory functions and express arginase 1 (ARG1). Through the process of phagocytosis, macrophages contain, engulf, and eliminate bacteria. Therefore, they are one of the first lines of defense against Salmonella. Infection with Salmonella leads to gastrointestinal disorders and systemic infection, termed typhoid fever. For further characterization of infection pathways, we established an in vitro model where macrophages are infected with the mouse Salmonella typhi correlate Salmonella enterica serovar Typhimurium ( S. tm), which additionally expresses red fluorescent protein (RFP). This allows us to clearly characterize macrophages that phagocytosed the bacteria, using multi-color flow cytometry. In this protocol, we focus on the in vitro characterization of pro- and anti-inflammatory macrophages displaying red fluorescent protein-expressing Salmonella enterica serovar Typhimurium, by multi-color flow cytometry.
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Affiliation(s)
- Natascha Brigo
- Department of Internal Medicine II, Medical University of Innsbruck, Innsbruck, Austria
| | - Christa Pfeifhofer-Obermair
- Department of Internal Medicine II, Medical University of Innsbruck, Innsbruck, Austria
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*For correspondence:
| | - Egon Demetz
- Department of Internal Medicine II, Medical University of Innsbruck, Innsbruck, Austria
| | | | - Günter Weiss
- Department of Internal Medicine II, Medical University of Innsbruck, Innsbruck, Austria
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9
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Li X, Zhao W, Peng L, Li Y, Nie S, Yu H, Qin Y, Zhang H. Elevated serum extracellular vesicle arginase 1 in type 2 diabetes mellitus: a cross-sectional study in middle-aged and elderly population. BMC Endocr Disord 2022; 22:62. [PMID: 35277141 PMCID: PMC8917686 DOI: 10.1186/s12902-022-00982-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 03/01/2022] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Serum extracellular vesicle (EV)-derived arginase 1 (ARG 1) plays a critical role in diabetes-associated endothelial dysfunction. This study was performed to determine the levels of serum EV-derived ARG 1 in T2DM and non-T2DM participants and to examine the association of serum EV-derived ARG 1 with T2DM incidence. METHODS We performed a cross-sectional study in 103 Chinese, including 73 T2DM patients and 30 non-T2DM. Serum EVs were prepared via ultracentrifugation. Serum EV-derived ARG 1 levels were measured by enzyme-linked immunosorbent assay. The correlations between serum EV-derived ARG 1 and clinical variables were analyzed. The association of serum EV-derived ARG 1 levels with T2DM was determined by multivariate logistic regression analysis. Interaction subgroup analysis was used to evaluate the interaction of the relevant baselines on the association between serum EV-derived ARG 1 levels and T2DM. RESULTS Serum EV-derived ARG 1 levels were significantly higher in T2DM patients compared with non-T2DM patients (p < 0.001). Correlation analysis revealed that serum EV-derived ARG 1 levels were positively associated with fasting plasma glucose (FPG) (r = 0.316, p = 0.001) and glycated hemoglobin (HbA1c) (r = 0.322, p = 0.001). Serum EV-derived ARG 1 levels were significantly associated with T2DM, especially in the subgroup of T2DM for more than 10 years (OR 1.651, 95% CI = 1.066-2.557; P value, 0.025), after adjusting for confounding factors. CONCLUSIONS Elevated concentration of serum EV-derived ARG 1 is closely associated with T2DM.
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Affiliation(s)
- Xinwei Li
- Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, No. 2 Anzhen Road, Beijing, 100029, China
| | - Wen Zhao
- Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, No. 2 Anzhen Road, Beijing, 100029, China
| | - Lu Peng
- Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, No. 2 Anzhen Road, Beijing, 100029, China
| | - Yu Li
- Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, No. 2 Anzhen Road, Beijing, 100029, China
| | - Shaoping Nie
- Department of Emergency, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Huahui Yu
- Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, No. 2 Anzhen Road, Beijing, 100029, China
| | - Yanwen Qin
- Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, No. 2 Anzhen Road, Beijing, 100029, China
| | - Huina Zhang
- Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, No. 2 Anzhen Road, Beijing, 100029, China.
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10
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Abstract
A growing body of evidence indicates that, over the course of evolution of the immune system, arginine has been selected as a node for the regulation of immune responses. An appropriate supply of arginine has long been associated with the improvement of immune responses. In addition to being a building block for protein synthesis, arginine serves as a substrate for distinct metabolic pathways that profoundly affect immune cell biology; especially macrophage, dendritic cell and T cell immunobiology. Arginine availability, synthesis, and catabolism are highly interrelated aspects of immune responses and their fine-tuning can dictate divergent pro-inflammatory or anti-inflammatory immune outcomes. Here, we review the organismal pathways of arginine metabolism in humans and rodents, as essential modulators of the availability of this semi-essential amino acid for immune cells. We subsequently review well-established and novel findings on the functional impact of arginine biosynthetic and catabolic pathways on the main immune cell lineages. Finally, as arginine has emerged as a molecule impacting on a plethora of immune functions, we integrate key notions on how the disruption or perversion of arginine metabolism is implicated in pathologies ranging from infectious diseases to autoimmunity and cancer.
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Affiliation(s)
| | - Walter Reith
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
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11
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Liu Q, Wang Y, Zheng Q, Dong X, Xie Z, Panayi A, Bai X, Li Z. MicroRNA-150 inhibits myeloid-derived suppressor cells proliferation and function through negative regulation of ARG-1 in sepsis. Life Sci 2021; 278:119626. [PMID: 34004247 DOI: 10.1016/j.lfs.2021.119626] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 05/06/2021] [Accepted: 05/10/2021] [Indexed: 01/01/2023]
Abstract
AIMS Sepsis is defined as life-threatening organ dysfunction caused by a dysregulated host response to infection. The majority of sepsis-related deaths occur during late sepsis, which presents as a state of immunosuppression. Myeloid-derived suppressor cells (MDSCs) have been reported to promote immunosuppression during sepsis. Here we aim to understand the role of microRNAs in regulating MDSCs proliferation and immunosuppression function during sepsis. MAIN METHODS Murine sepsis model was established using cecal ligation and puncture (CLP). A microarray was used to identify microRNAs with differential expression in murine sepsis. The effect of microRNA-150 on MDSCs proliferation and function was then evaluated. 140 multiple trauma patients from Tongji Hospital and 10 healthy controls were recruited. Peripheral blood samples were taken and the serum level of miR-150 was measured. KEY FINDINGS In the murine model of sepsis, MDSCs expansion was noted in the spleen and bone marrow, while expression of miR-150 in MDSCs decreased. Replenishing miR-150 inhibited the expansion of MDSCs in both monocytic and polymorphonuclear subpopulations, as well as decreasing the immunosuppressive function of MDSCs, through down-regulation of ARG1. Both pro-inflammatory cytokine IL-6 and anti-inflammatory cytokines TGF-β and IL-10 were reduced by miR-150. In human, the serum level of miR-150 was down-regulated in septic patients and elevated in non-septic trauma patients compared to healthy controls. SIGNIFICANCE Our study showed that MiR-150 is down-regulated during sepsis. Replenishing miR-150 reduces the immunosuppression function of MDSCs by down-regulating ARG1 in late sepsis. MiR-150 might serve as a potential therapeutic option for sepsis.
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12
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Govender N, Ramdin S, Reddy R, Naicker T. Transforming growth factor-beta and liver injury in an arginine vasopressin-induced pregnant rat model. Clin Exp Reprod Med 2021; 48:124-131. [PMID: 34024085 PMCID: PMC8176156 DOI: 10.5653/cerm.2020.04035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 01/16/2021] [Indexed: 12/12/2022] Open
Abstract
Objective Approximately 30% of preeclamptic pregnancies exhibit abnormal liver function tests. We assessed liver injury-associated enzyme levels and circulating transforming growth factor beta (TGF-β) levels in an arginine vasopressin (AVP)-induced pregnant Sprague-Dawley rat model. Methods Pregnant and non-pregnant Sprague-Dawley rats (n=24) received AVP (150 ng/hr) subcutaneously via mini-osmotic pumps for 18 days. Blood pressure was measured, urine samples were collected, and all animals were euthanized via isoflurane. Blood was collected to measure circulating levels of TGF-β1-3 isomers and liver injury enzymes in pregnant AVP (PAVP), pregnant saline (PS), non-pregnant AVP (NAVP), and non-pregnant saline (NS) rats. Results The PAVP group showed significantly higher systolic and diastolic blood pressure than both saline-treated groups. The weight per pup was significantly lower in the AVP-treated group than in the saline group (p<0.05). Circulating TGF-β1-3 isomer levels were significantly higher in the PAVP rats than in the NS rats. However, similar TGF-β1 and TGF-β3 levels were noted in the PS and PAVP rats, while TGF-β2 levels were significantly higher in the PAVP rats. Circulating liver-type arginase-1 and 5'-nucleotidase levels were higher in the PAVP rats than in the saline group. Conclusion This is the first study to demonstrate higher levels of TGF-β2, arginase, and 5'-nucleotidase activity in PAVP than in PS rats. AVP may cause vasoconstriction and increase peripheral resistance and blood pressure, thereby elevating TGF-β and inducing the preeclampsia-associated inflammatory response. Future studies should explore the mechanisms through which AVP dysregulates liver injury enzymes and TGF-β in pregnant rats.
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Affiliation(s)
- Nalini Govender
- Department of Basic Medical Sciences, Faculty of Health Sciences, Durban University of Technology, Durban, South Africa
| | - Sapna Ramdin
- Department of Basic Medical Sciences, Faculty of Health Sciences, Durban University of Technology, Durban, South Africa
| | - Rebecca Reddy
- Department of Basic Medical Sciences, Faculty of Health Sciences, Durban University of Technology, Durban, South Africa
| | - Thajasvarie Naicker
- Discipline of Optics and Imaging, Doris Duke Medical Research Institute, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
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13
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Qi X, Jiang H, Liu P, Xie N, Fu R, Wang H, Liu C, Zhang T, Wang H, Shao Z. Increased myeloid-derived suppressor cells in patients with myelodysplastic syndromes suppress CD8+ T lymphocyte function through the STAT3-ARG1 pathway. Leuk Lymphoma 2020; 62:218-223. [PMID: 32985300 DOI: 10.1080/10428194.2020.1817431] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
MDSCs, which are defined as a kind of negatively regulatory cells, could suppress T cell immune response in many tumor-bearing animal models and cancer patients. We supposed that MDSCs also contributed to the impaired antitumor immunity in MDS. Here we demonstrated that STAT3-ARG1 pathway could be a critical signal transduction pathway that regulated MDSCs-mediated immunosuppression. Increased MDSCs was revealed in MDS patients when compared to healthy controls. Especially, MDSCs performed higher activated STAT3 and CCR2 expression in high-risk MDS patients. The CCL2 and IL-6 levels in MDS patients were also higher than in healthy controls, which could drive recruitment and activation of MDSCs. Meanwhile, lower expression levels of CD3ζ chain, perforin and granzyme B were demonstrated in MDS patients, which were associated with downregulated activation of CD8+ T lymphocytes. The results were supported by the decreased perforin, granzyme B and IFN-γ levels in the mixed-culture system of MDSCs and CD8+ T lymphocytes in vitro. Notably, targeting STAT3 pathway by selective inhibitor could decrease ARG1 expression in MDSCs and partially reverse the lower expression levels of effector molecules on CD8+ T lymphocytes. Therefore, this study revealed the potential STAT3-ARG1 mechanism behind MDSCs and provided a promising STAT3 targeting strategy in MDS.
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Affiliation(s)
- Xiao Qi
- Department of Hematology and Oncology, Tianjin Union Medical Center of Nankai University, Tianjin, China
| | - Huijuan Jiang
- Hematology Department, Tianjin Medical University General Hospital, Tianjin, China
| | - Pei Liu
- Hematology Department, Tianjin Medical University General Hospital, Tianjin, China
| | - Ning Xie
- Hematology Department, Tianjin Medical University General Hospital, Tianjin, China
| | - Rong Fu
- Hematology Department, Tianjin Medical University General Hospital, Tianjin, China
| | - Huaquan Wang
- Hematology Department, Tianjin Medical University General Hospital, Tianjin, China
| | - Chunyan Liu
- Hematology Department, Tianjin Medical University General Hospital, Tianjin, China
| | - Tian Zhang
- Hematology Department, Tianjin Medical University General Hospital, Tianjin, China
| | - Huaqing Wang
- Department of Hematology and Oncology, Tianjin Union Medical Center of Nankai University, Tianjin, China
| | - Zonghong Shao
- Hematology Department, Tianjin Medical University General Hospital, Tianjin, China
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Zhang W, Liu J, Li P, Wang X, Bi S, Zhang J, Zhang W, Wang H, Tang B. In situ and real-time imaging of superoxide anion and peroxynitrite elucidating arginase 1 nitration aggravating hepatic ischemia-reperfusion injury. Biomaterials 2019; 225:119499. [PMID: 31561087 DOI: 10.1016/j.biomaterials.2019.119499] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 08/26/2019] [Accepted: 09/15/2019] [Indexed: 02/02/2023]
Abstract
Hepatic ischemia-reperfusion (IR) injury is dynamically regulated by intertwined superoxide anion (O2-)-peroxynitrite (ONOO-) cascaded molecules. Arginase 1 involves in O2-/ONOO- fluctuations and is strongly connected to IR injury. A few probes have been innovated to measure intracellular O2- or ONOO- by fluorescent imaging separately, but revealing the definite link of O2-, ONOO- and arginase 1 in situ remains unidentified in hepatic IR. Thus, a well-designed dual-color two-photon fluorescence probe (CyCA) was created for the in situ real-time detection of O2--ONOO-. Surprisingly, CyCA exhibited a suitable combination of high specificity, preeminent sensitivity, exclusive mitochondria-targeting and fast-response. On the basis of remarkable advantages, we successfully applied CyCA to visualize endogenous O2- and ONOO- in living cells and mice. The synergistic elevation of mitochondrial O2--ONOO- in IR mice was observed for the first time. Furthermore, three tyrosine nitration-sites in arginase 1 caused by ONOO- were identified in proteomic analysis, which was never reported previously. Attractively, nitro-modified arginase 1 could further promote ONOO- formation, ultimately exacerbating the intracellular redox imbalance and IR injury. These new findings decipher direct molecular links of O2--ONOO--arginase 1, and suggest effective strategies for the prevention and treatment of IR injury.
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Affiliation(s)
- Wen Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institutes of Biomedical Sciences, Shandong Normal University, Jinan, 250014, PR China
| | - Jihong Liu
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institutes of Biomedical Sciences, Shandong Normal University, Jinan, 250014, PR China
| | - Ping Li
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institutes of Biomedical Sciences, Shandong Normal University, Jinan, 250014, PR China.
| | - Xin Wang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institutes of Biomedical Sciences, Shandong Normal University, Jinan, 250014, PR China
| | - Simin Bi
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institutes of Biomedical Sciences, Shandong Normal University, Jinan, 250014, PR China
| | - Jiao Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institutes of Biomedical Sciences, Shandong Normal University, Jinan, 250014, PR China
| | - Wei Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institutes of Biomedical Sciences, Shandong Normal University, Jinan, 250014, PR China
| | - Hui Wang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institutes of Biomedical Sciences, Shandong Normal University, Jinan, 250014, PR China
| | - Bo Tang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institutes of Biomedical Sciences, Shandong Normal University, Jinan, 250014, PR China.
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15
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Sasaki H, Furusho H, Rider DB, Dobeck JM, Kuo WP, Fujimura A, Yoganathan S, Hirai K, Xu S, Sasaki K, Stashenko P. Endodontic Infection-induced Inflammation Resembling Osteomyelitis of the Jaws in Toll-like Receptor 2/Interleukin 10 Double-knockout Mice. J Endod 2019; 45:181-188. [PMID: 30711175 DOI: 10.1016/j.joen.2018.10.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 08/20/2018] [Accepted: 10/18/2018] [Indexed: 11/17/2022]
Abstract
INTRODUCTION In general, mice develop chronic and nonhealing periapical lesions after endodontic infection. Surprisingly, we recently found that toll-like receptor 2 (TLR2)/interleukin 10 (IL-10) double-knockout (dKO) mice exhibited acute but resolving osteomyelitislike inflammation. In this study, we examined the kinetics of endodontic infection-induced inflammation in TLR2/IL-10 dKO mice and explored a potential mechanism of periapical wound healing mediated by the hypoxia-inducible factor 1 alpha (HIF-1α) subunit and arginase 1. METHODS TLR2/IL-10 dKO and wild-type C57BL/6J mice were subjected to endodontic infection in the mandibular first molars. Mice were sacrificed on days 0 (noninfected), 10, and 21 postinfection. The extent of bone destruction, inflammation, bone deposition, and gene expression were determined by micro-computed tomographic imaging, histology, bone polychrome labeling, and microarray analysis. In addition, the effect of blocking endogenous HIF-1α was tested in infected TLR2/IL-10 dKO mice using the specific inhibitor YC-1. RESULTS Infected TLR2/IL-10 dKO mice exhibited extensive bone destruction and inflammation on day 10 followed by spontaneous periapical wound healing including bone formation and resolution of inflammation by day 21 postinfection. In contrast, WT mice developed increasing chronic periapical inflammation over the 21-day observation period. Gene expression analyses and immunohistochemistry revealed that HIF-1α and arginase 1 were up-regulated in spontaneous wound healing in TLR2/IL-10 dKO mice. Blocking of HIF-1α in TLR2/IL-10 dKO mice using YC-1 resulted in significant inhibition of regenerative bone formation. CONCLUSIONS The TLR2/IL-10 dKO mouse is a novel model resembling osteomyelitis of the jaws in which HIF-1α and arginase 1 appear to be crucial factors in spontaneous wound healing and bone repair.
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Affiliation(s)
- Hajime Sasaki
- Department of Cariology, Restorative Sciences and Endodontics, University of Michigan School of Dentistry, Ann Arbor, Michigan; Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, Massachusetts; Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, Massachusetts.
| | - Hisako Furusho
- Department of Oral and Maxillofacial Pathobiology, Hiroshima University, Hiroshima, Japan
| | - Daniel B Rider
- Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, Massachusetts
| | - Justine M Dobeck
- Department of Mineralized Tissue Biology, The Forsyth Institute, Cambridge, Massachusetts
| | - Winston Patrick Kuo
- Department of Developmental Biology, Harvard School of Dental Medicine, Boston, Massachusetts
| | - Akira Fujimura
- Division of Functional Morphology, Department of Anatomy, Iwate Medical University, Morioka, Iwate, Japan
| | - Subbiah Yoganathan
- Department of Developmental Biology, Harvard School of Dental Medicine, Boston, Massachusetts
| | - Kimito Hirai
- Department of Cariology, Restorative Sciences and Endodontics, University of Michigan School of Dentistry, Ann Arbor, Michigan; Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, Massachusetts
| | - Shuang Xu
- Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, Massachusetts; Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Kei Sasaki
- Department of Immunology and Infectious Diseases, The Forsyth Institute, Cambridge, Massachusetts
| | - Philip Stashenko
- Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, Massachusetts; Department of Endodontics, Boston University Goldman School of Dental Medicine, Boston, Massachusetts
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16
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Abstract
Arginase I (ARG1) deficiency is an autosomal recessive urea cycle disorder, caused by deficiency of the enzyme Arginase I, resulting in accumulation of arginine in blood. Current Standard of Care (SOC) for ARG1 deficiency in patients or those having detrimental mutations of ARG1 gene is diet control. Despite diet and drug therapy with nitrogen scavengers, ~25% of patients suffer from severe mental deficits and loss of ambulation. 75% of patients whose symptoms can be managed through diet therapy continue to suffer neuro-cognitive deficits. In our research, we demonstrate in vitro and in vivo that administration of ARG1 mRNA increased ARG1 protein expression and specific activity in relevant cell types, including ARG1-deficient patient cell lines, as well as in wild type mice for up to 4 days. These studies demonstrate that ARG1 mRNA treatment led to increased functional protein expression of ARG1 and subsequently an increase in urea. Hence, ARG1 mRNA therapy could be a potential treatment option to develop for patients.
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Affiliation(s)
- Kirtika H Asrani
- a Discovery Research Cambridge , Alexion Pharmaceuticals, Inc ., Cambridge , MA , USA
| | - Lei Cheng
- a Discovery Research Cambridge , Alexion Pharmaceuticals, Inc ., Cambridge , MA , USA
| | - Christopher J Cheng
- b Nucleic Acid Technology , Alexion Pharmaceuticals, Inc ., New Haven , CT , USA
| | - Romesh R Subramanian
- a Discovery Research Cambridge , Alexion Pharmaceuticals, Inc ., Cambridge , MA , USA
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17
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Jang TJ, Kim SA, Kim MK. Increased number of arginase 1-positive cells in the stroma of carcinomas compared to precursor lesions and nonneoplastic tissues. Pathol Res Pract 2018; 214:1179-84. [PMID: 29970307 DOI: 10.1016/j.prp.2018.06.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 06/12/2018] [Accepted: 06/25/2018] [Indexed: 01/19/2023]
Abstract
Arginase 1 (Arg1) is involved in dampening the response of antitumor T lymphocytes. Arg1 expression has been reported in a variety of cancer cell lines and tumor-associated myeloid-derived cells. However, its examination in situ in tumor microenvironment is poorly investigated. We examined the Arg1-positive cells in tumor microenvironment of gastric carcinomas (GCs), colorectal carcinomas (CRCs) and prostate carcinomas (PCs), and analyzed their clinicopathological significance. Immunohistochemical staining for Arg1 was done in 60 GCs, 38 gastric adenomas, 40 CRCs, 10 colonic adenomas, 36 PCs, and 15 benign prostatic hyperplasia (BPH). Arg1 expression was predominantly localized in tumor microenvironment and the stroma of nonneoplastic tissues. Cells with Arg1 expression were mostly leukocytes, morphologically resembling polymorphonuclear neutrophils, and showed CD15 expression. Arg1 expression was focally expressed in cancer cells of 6 PCs, but not in those of GCs and CRCs. Arg1-positive cells were significantly more infiltrated in tumors than adenomas and nonneoplastic tissues, such as BPH, intestinal metaplasia and adjacent tissues. There were no significant findings between them and clinicopathological parameters, except for the relationship to gender and tumor differentiation in CRCs. These findings suggest that Arg1-positive cells in tumor microenvironment is involved in the occurrence of GCs, CRCs, and PCs. More expansive studies are necessary to better elucidate their clinicopathological significance in carcinomas.
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Navarrete C, Carrillo-Salinas F, Palomares B, Mecha M, Jiménez-Jiménez C, Mestre L, Feliú A, Bellido ML, Fiebich BL, Appendino G, Calzado MA, Guaza C, Muñoz E. Hypoxia mimetic activity of VCE-004.8, a cannabidiol quinone derivative: implications for multiple sclerosis therapy. J Neuroinflammation 2018; 15:64. [PMID: 29495967 PMCID: PMC5831753 DOI: 10.1186/s12974-018-1103-y] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Accepted: 02/21/2018] [Indexed: 02/06/2023] Open
Abstract
Background Multiple sclerosis (MS) is characterized by a combination of inflammatory and neurodegenerative processes variously dominant in different stages of the disease. Thus, immunosuppression is the goal standard for the inflammatory stage, and novel remyelination therapies are pursued to restore lost function. Cannabinoids such as 9Δ-THC and CBD are multi-target compounds already introduced in the clinical practice for multiple sclerosis (MS). Semisynthetic cannabinoids are designed to improve bioactivities and druggability of their natural precursors. VCE-004.8, an aminoquinone derivative of cannabidiol (CBD), is a dual PPARγ and CB2 agonist with potent anti-inflammatory activity. Activation of the hypoxia-inducible factor (HIF) can have a beneficial role in MS by modulating the immune response and favoring neuroprotection and axonal regeneration. Methods We investigated the effects of VCE-004.8 on the HIF pathway in different cell types. The effect of VCE-004.8 on macrophage polarization and arginase 1 expression was analyzed in RAW264.7 and BV2 cells. COX-2 expression and PGE2 synthesis induced by lipopolysaccharide (LPS) was studied in primary microglia cultures. The efficacy of VCE-004.8 in vivo was evaluated in two murine models of MS such as experimental autoimmune encephalomyelitis (EAE) and Theiler’s virus-induced encephalopathy (TMEV). Results Herein, we provide evidence that VCE-004.8 stabilizes HIF-1α and HIF-2α and activates the HIF pathway in human microvascular endothelial cells, oligodendrocytes, and microglia cells. The stabilization of HIF-1α is produced by the inhibition of the prolyl-4-hydrolase activity of PHD1 and PDH2. VCE-004.8 upregulates the expression of HIF-dependent genes such as erythropoietin and VEGFA, induces angiogenesis, and enhances migration of oligodendrocytes. Moreover, VCE-004.8 blunts IL-17-induced M1 polarization, inhibits LPS-induced COX-2 expression and PGE2 synthesis, and induces expression of arginase 1 in macrophages and microglia. In vivo experiments showed efficacy of VCE-004.8 in EAE and TMEV. Histopathological analysis revealed that VCE-004.8 treatments prevented demyelination, axonal damage, and immune cells infiltration. In addition, VCE-004.8 downregulated the expression of several genes closely associated with MS physiopathology, including those underlying the production of chemokines, cytokines, and adhesion molecules. Conclusions This study provides new significant insights about the potential role of VCE-004.8 for MS treatment by ameliorating neuroinflammation and demyelination. Electronic supplementary material The online version of this article (10.1186/s12974-018-1103-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | | | - Belén Palomares
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), University of Córdoba, Avda Menéndez Pidal s/n, 14004, Córdoba, Spain.,Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba, Córdoba, Spain.,Hospital Universitario Reina Sofía, Córdoba, Spain
| | - Miriam Mecha
- Departamento de Neurobiología Funcional y de Sistemas, Instituto Cajal-CSIC, Madrid, Spain
| | - Carla Jiménez-Jiménez
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), University of Córdoba, Avda Menéndez Pidal s/n, 14004, Córdoba, Spain.,Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba, Córdoba, Spain.,Hospital Universitario Reina Sofía, Córdoba, Spain
| | - Leyre Mestre
- Departamento de Neurobiología Funcional y de Sistemas, Instituto Cajal-CSIC, Madrid, Spain
| | - Ana Feliú
- Departamento de Neurobiología Funcional y de Sistemas, Instituto Cajal-CSIC, Madrid, Spain
| | - Maria L Bellido
- Vivacell Biotechnology SL, Córdoba, Spain.,Emerald Health Pharmaceuticals, San Diego, CA, USA
| | | | - Giovanni Appendino
- Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale, Novara, Italy
| | - Marco A Calzado
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), University of Córdoba, Avda Menéndez Pidal s/n, 14004, Córdoba, Spain.,Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba, Córdoba, Spain.,Hospital Universitario Reina Sofía, Córdoba, Spain
| | - Carmen Guaza
- Departamento de Neurobiología Funcional y de Sistemas, Instituto Cajal-CSIC, Madrid, Spain
| | - Eduardo Muñoz
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), University of Córdoba, Avda Menéndez Pidal s/n, 14004, Córdoba, Spain. .,Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba, Córdoba, Spain. .,Hospital Universitario Reina Sofía, Córdoba, Spain.
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Hsu SW, Chang TC, Wu YK, Lin KT, Shi LS, Lee SY. Rhodiola crenulata extract counteracts the effect of hypobaric hypoxia in rat heart via redirection of the nitric oxide and arginase 1 pathway. BMC Complement Altern Med 2017; 17:29. [PMID: 28061780 PMCID: PMC5219729 DOI: 10.1186/s12906-016-1524-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 12/08/2016] [Indexed: 11/24/2022]
Abstract
BACKGROUND Rhodiola crenulata is traditionally used as a folk medicine in Tibet for preventing high-altitude illnesses, including sudden cardiac death (SCD). The cardio-protective effects of Rhodiola crenulata root extract (RCE) against hypoxia in vivo have been recently confirmed. However, the way in which RCE produces these effects remains unclear. The present study is designed to confirm the protective effects of RCE on the heart in acute hypobaric hypoxia exposure and examine the mechanisms by which this occurs. METHODS Sprague-Dawley (SD) rats were pretreated with or without RCE and then exposed to a simulated altitude of 8000 m in a hypobaric hypoxia chamber for 9 h. The expression of cardiac arginase 1 (Arg-1) and endothelial nitric oxide synthase (eNOS) and the activity of associated signaling pathways was examined. RESULTS Hypoxia reduced cardiac eNOS phosphorylation and increased Arg-1 expression, but both responses were reversed by RCE pre-treatment. In addition, RCE decreased the hypoxia-induced oxidative stress markers of reactive oxygen species (ROS) production, malondialdehyde (MDA) level, and protein carbonyl content. Furthermore, RCE protected cardiomyocytes from hypoxia-induced cardiac apoptosis and restored the phosphorylation level of AKT and p38 MAPK as well as the superoxide dismutase 2 (SOD2) content in hypoxic animals. CONCLUSION The findings provide evidence that the effects of Rhodiola crenulata against altitude illness are partially mediated by modulation of eNOS and Arg-1 pathways in the heart.
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Affiliation(s)
- Shih-Wei Hsu
- Department of Neurosurgery, Taichung Armed Forces General Hospital, Taichung, Taiwan
| | - Tsu-Chung Chang
- Department of Biochemistry, National Defense Medical Center, Taipei, Taiwan
| | - Yu-Kuan Wu
- Department of Biochemistry, National Defense Medical Center, Taipei, Taiwan
| | - Kuen-Tze Lin
- Department of Radiation Oncology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Li-Shian Shi
- Department of Biotechnology, National Formosa University, Yunlin, Taiwan
| | - Shih-Yu Lee
- Graduate Institute of Aerospace and Undersea Medicine, National Defense Medical Center, P.O. Box 90048-514, Nei-Hu 114, Taipei, Taiwan, R.O.C
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Askan G, Deshpande V, Klimstra DS, Adsay V, Sigel C, Shia J, Basturk O. Expression of Markers of Hepatocellular Differentiation in Pancreatic Acinar Cell Neoplasms: A Potential Diagnostic Pitfall. Am J Clin Pathol 2016; 146:163-9. [PMID: 27425386 DOI: 10.1093/ajcp/aqw096] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVES Pancreatic acinar cell carcinoma (ACC) is a rare tumor that frequently metastasizes to the liver and may present a diagnostic challenge due to its morphologic similarity to hepatocellular carcinoma. We investigated α-fetoprotein (AFP), hepatocyte paraffin antigen 1 (HepPar 1), glypican 3, arginase 1, and albumin messenger RNA (mRNA) in situ hybridization (ISH) in pancreatic neoplasms with ACC differentiation to assess their diagnostic value. METHODS AFP, HepPar 1, glypican 3, and arginase 1 immunohistochemical staining was performed on 28 ACCs using a tissue microarray. Albumin mRNA ISH was performed on full-faced sections. RESULTS Fifteen tumors were positive for at least one marker. Glypican 3 was positive in seven of 28, AFP in five 28, and albumin mRNA ISH in five of 20. None expressed arginase 1. CONCLUSIONS Hepatocellular differentiation markers, including albumin mRNA ISH, may be positive in ACC, but arginase 1 appears to be uniformly negative. Thus, its use may improve the accuracy in distinguishing these neoplasms from hepatocellular carcinoma. If ACC diagnosis is considered, acinar differentiation can be reliably demonstrated by trypsin/chymotrypsin.
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Affiliation(s)
- Gokce Askan
- From the Memorial Sloan Kettering Cancer Center, New York, NY
| | | | | | | | - Carlie Sigel
- From the Memorial Sloan Kettering Cancer Center, New York, NY
| | - Jinru Shia
- From the Memorial Sloan Kettering Cancer Center, New York, NY
| | - Olca Basturk
- From the Memorial Sloan Kettering Cancer Center, New York, NY
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Yuan C, Zheng Y, Zhang B, Shao L, Liu Y, Tian T, Gu X, Li X, Fan K. Thymosin α1 promotes the activation of myeloid-derived suppressor cells in a Lewis lung cancer model by upregulating Arginase 1. Biochem Biophys Res Commun 2015; 464:249-55. [PMID: 26111447 DOI: 10.1016/j.bbrc.2015.06.132] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 06/20/2015] [Indexed: 12/20/2022]
Abstract
Thymosin α1 (Tα1) has been tested for cancer therapy for several years, in most cases, the anti-tumor effect of Tα1 was limited, especially when Tα1 was used as a single agent. The role of Tα1 in cancer treatment and the regulatory mechanisms by which Ta1 takes effects are not yet completely understood. Using a Lewis lung caner model, here we report that Tα1 used alone elevated CD8(+) T cells, but failed to inhibit tumor growth. Furthermore, immunosuppressive myeloid-derived suppressor cells (MDSCs) showed heightened Arginase 1 production in response to Tα1 treatment, which led to stronger suppression of anti-tumor immunity. In addition, the upregulation of ARG1 was dependent on TLRs/MyD88 signaling, blocking MyD88 signaling abrogated the enhanced ARG1 expression and restored the anti-tumor efficacy of Tα1. This study provides the first demonstration that Tα1 treatment activates but not expands MDSCs via MyD88 signaling, which indicates better immunotherapeutic strategy of Tα1 against cancer.
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Affiliation(s)
- Chao Yuan
- Cancer Center, Chinese PLA General Hospital and Chinese PLA Medical School, 28 FuXing Road, Beijing 100853, PR China; International Joint Cancer Institute, The Second Military Medical University, 800 Xiang Yin Road, Shanghai 200433, PR China
| | - Yisheng Zheng
- Department of Respiratory and Critical Care Medicine, Fuzong Clinical College of Fujian Medical University, Fuzhou General Hospital, Fuzhou, Fujian 350000, PR China
| | - Bo Zhang
- Cancer Center, Chinese PLA General Hospital and Chinese PLA Medical School, 28 FuXing Road, Beijing 100853, PR China; International Joint Cancer Institute, The Second Military Medical University, 800 Xiang Yin Road, Shanghai 200433, PR China
| | - LiJuan Shao
- Cancer Center, Chinese PLA General Hospital and Chinese PLA Medical School, 28 FuXing Road, Beijing 100853, PR China
| | - Yang Liu
- Cancer Center, Chinese PLA General Hospital and Chinese PLA Medical School, 28 FuXing Road, Beijing 100853, PR China
| | - Tian Tian
- Cancer Center, Chinese PLA General Hospital and Chinese PLA Medical School, 28 FuXing Road, Beijing 100853, PR China
| | - XiaoBin Gu
- Cancer Center, Chinese PLA General Hospital and Chinese PLA Medical School, 28 FuXing Road, Beijing 100853, PR China
| | - Xiangnan Li
- Department of Thoracic Surgery, First Affiliated Hospital of Zhengzhou University, No. 1, Jianshe Road, Zhengzhou 450052, PR China.
| | - KeXing Fan
- Cancer Center, Chinese PLA General Hospital and Chinese PLA Medical School, 28 FuXing Road, Beijing 100853, PR China; International Joint Cancer Institute, The Second Military Medical University, 800 Xiang Yin Road, Shanghai 200433, PR China.
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Mahajan S, Saini A, Chandra V, Nanduri R, Kalra R, Bhagyaraj E, Khatri N, Gupta P. Nuclear Receptor Nr4a2 Promotes Alternative Polarization of Macrophages and Confers Protection in Sepsis. J Biol Chem 2015; 290:18304-14. [PMID: 25953901 DOI: 10.1074/jbc.m115.638064] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Indexed: 01/22/2023] Open
Abstract
The orphan nuclear receptor Nr4a2 is known to modulate both inflammatory and metabolic processes, but the mechanism by which it regulates innate inflammatory homeostasis has not been adequately addressed. This study shows that exposure to ligands for Toll-like receptors (TLRs) robustly induces Nr4a2 and that this induction is tightly regulated by the PI3K-Akt signaling axis. Interestingly, exogenous expression of Nr4a2 in macrophages leads to their alternative phenotype with induction of genes that are prototypical M2 markers. Moreover, Nr4a2 transcriptionally activates arginase 1 expression by directly binding to its promoter. Adoptive transfer experiments revealed that increased survival of animals in endotoxin-induced sepsis is Nr4a2-dependent. Thus our data identify a previously unknown role for Nr4a2 in the regulation of macrophage polarization.
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Affiliation(s)
- Sahil Mahajan
- From the Institute of Microbial Technology, Council of Scientific and Industrial Research, Chandigarh 160036, India
| | - Ankita Saini
- From the Institute of Microbial Technology, Council of Scientific and Industrial Research, Chandigarh 160036, India
| | - Vemika Chandra
- From the Institute of Microbial Technology, Council of Scientific and Industrial Research, Chandigarh 160036, India
| | - Ravikanth Nanduri
- From the Institute of Microbial Technology, Council of Scientific and Industrial Research, Chandigarh 160036, India
| | - Rashi Kalra
- From the Institute of Microbial Technology, Council of Scientific and Industrial Research, Chandigarh 160036, India
| | - Ella Bhagyaraj
- From the Institute of Microbial Technology, Council of Scientific and Industrial Research, Chandigarh 160036, India
| | - Neeraj Khatri
- From the Institute of Microbial Technology, Council of Scientific and Industrial Research, Chandigarh 160036, India
| | - Pawan Gupta
- From the Institute of Microbial Technology, Council of Scientific and Industrial Research, Chandigarh 160036, India
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Maloney J, Keselman A, Li E, Singer SM. Macrophages expressing arginase 1 and nitric oxide synthase 2 accumulate in the small intestine during Giardia lamblia infection. Microbes Infect 2015; 17:462-7. [PMID: 25797399 DOI: 10.1016/j.micinf.2015.03.006] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Revised: 03/04/2015] [Accepted: 03/10/2015] [Indexed: 01/30/2023]
Abstract
Nitric oxide (NO) has been shown to inhibit Giardia lamblia in vitro and in vivo. This study sought to determine if Giardia infection induces arginase 1 (ARG1) expression in host macrophages to reduce NO production. Stimulations of RAW 264.7 macrophage-like cells with Giardia extract induced arginase activity. Real-time PCR and immunohistochemistry showed increased ARG1 and nitric oxide synthase 2 (NOS2) expression in mouse intestine following infection. Flow cytometry demonstrated increased numbers of macrophages positive for both ARG1 and NOS2 in lamina propria following infection, but there was no evidence of increased expression of ARG1 in these cells.
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Affiliation(s)
- Jenny Maloney
- Georgetown University, Dept. of Biology, 37th and O Sts NW Reiss 406, Washington DC 20057, USA.
| | - Aleksander Keselman
- Georgetown University, Dept. of Biology, 37th and O Sts NW Reiss 406, Washington DC 20057, USA.
| | - Erqiu Li
- Georgetown University, Dept. of Biology, 37th and O Sts NW Reiss 406, Washington DC 20057, USA.
| | - Steven M Singer
- Georgetown University, Dept. of Biology, 37th and O Sts NW Reiss 406, Washington DC 20057, USA.
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