1
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Kim HS, Kim YI, Cho JY. ARID3C Acts as a Regulator of Monocyte-to-Macrophage Differentiation Interacting with NPM1. J Proteome Res 2024; 23:2882-2892. [PMID: 38231884 PMCID: PMC11302414 DOI: 10.1021/acs.jproteome.3c00509] [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: 08/12/2023] [Revised: 12/15/2023] [Accepted: 12/21/2023] [Indexed: 01/19/2024]
Abstract
ARID3C is a protein located on human chromosome 9 and expressed at low levels in various organs, yet its biological function has not been elucidated. In this study, we investigated both the cellular localization and function of ARID3C. Employing a combination of LC-MS/MS and deep learning techniques, we identified NPM1 as a binding partner for ARID3C's nuclear shuttling. ARID3C was found to predominantly localize with the nucleus, where it functioned as a transcription factor for genes STAT3, STAT1, and JUNB, thereby facilitating monocyte-to-macrophage differentiation. The precise binding sites between ARID3C and NPM1 were predicted by AlphaFold2. Mutating this binding site prevented ARID3C from interacting with NPM1, resulting in its retention in the cytoplasm instead of translocation to the nucleus. Consequently, ARID3C lost its ability to bind to the promoters of target genes, leading to a loss of monocyte-to-macrophage differentiation. Collectively, our findings indicate that ARID3C forms a complex with NPM1 to translocate to the nucleus, acting as a transcription factor that promotes the expression of the genes involved in monocyte-to-macrophage differentiation.
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Affiliation(s)
- Hui-Su Kim
- Department
of Biochemistry, College of Veterinary Medicine, Research Institute
for Veterinary Science, and BK21 FOUR Future Veterinary Medicine Leading
Education and Research Center, Seoul National
University, Seoul 08826, Republic of Korea
- Comparative
Medicine Disease Research Center (CDRC), Science Research Center (SRC), Seoul National University, Seoul 08826, Republic of Korea
| | - Yong-In Kim
- Department
of Biochemistry, College of Veterinary Medicine, Research Institute
for Veterinary Science, and BK21 FOUR Future Veterinary Medicine Leading
Education and Research Center, Seoul National
University, Seoul 08826, Republic of Korea
- Comparative
Medicine Disease Research Center (CDRC), Science Research Center (SRC), Seoul National University, Seoul 08826, Republic of Korea
| | - Je-Yoel Cho
- Department
of Biochemistry, College of Veterinary Medicine, Research Institute
for Veterinary Science, and BK21 FOUR Future Veterinary Medicine Leading
Education and Research Center, Seoul National
University, Seoul 08826, Republic of Korea
- Comparative
Medicine Disease Research Center (CDRC), Science Research Center (SRC), Seoul National University, Seoul 08826, Republic of Korea
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2
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Kitamura H. Flow cytometric detection of CD11b + Gr-1 + cells in nontumor-bearing mice: A propolis-elicited model. Methods Cell Biol 2023; 184:17-32. [PMID: 38555156 DOI: 10.1016/bs.mcb.2023.05.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/02/2024]
Abstract
Myeloid-derived suppressor cells (MDSCs) are a heterogenous myeloid lineage population whose conventional surface phenotype is CD11b+ Gr-1+. Due to their rarity and fragility, analyses using primary isolated MDSCs are extremely difficult. However, counting CD11b+ Gr-1+ cells in associated tissues such as tumors and inflammatory lesions provides critical information regarding MDSC involvement in immune disorders in the tissues. Specific MDSC markers have not been identified, limiting our ability to apply histochemical approaches during MDSCs research. However, profiling surface antigens using multi-colorimetric flow cytometry enables us to easily monitor the abundance of MDSCs in vivo. Monitoring of mouse MDSCs and their subpopulations using flow cytometry is well established. In this article, I exemplify a conventional method of monitoring CD11b+ Gr-1+ cells in mouse adipose tissue after administration of Brazilian propolis ethanol extract, which is a strong inducer of MDSCs.
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Affiliation(s)
- Hiroshi Kitamura
- Laboratory of Disease Models, College of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan.
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3
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Lu L, Jin Y, Tong Y, Xiao L, Hou Y, Liu Z, Dou H. Myeloid-derived suppressor cells promote the formation of abdominal aortic aneurysms through the IL-3-ICOSL-ICOS axis. BBA ADVANCES 2023; 4:100103. [PMID: 37705722 PMCID: PMC10495679 DOI: 10.1016/j.bbadva.2023.100103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/15/2023] Open
Abstract
Th17 cells are powerful inflammation promoters in the pathogenesis of abdominal aortic aneurysms (AAAs). Myeloid-derived suppressor cells (MDSCs) can promote the differentiation of Th17 cells in chronic inflammatory autoimmune injury. Here, we aim to examine whether MDSCs regulate the differentiation of Th17 cells to participate in the development of AAA. We demonstrated an abnormal accumulation of MDSCs in AAA patients, which was positively associated with Th17 cells. We established angiotensin II-induced apolipoprotein E knockout mice and found the impaired immunosuppressive function of M-MDSCs. After systemic injection of anti-Gr-1 antibody in AAA mice to deplete circulating MDSCs, AAA formation and the differentiation of Th17 cells were abolished, and the overexpression of inducible T-cell costimulator (ICOS) on Th17 cells was reversed accordingly. Regulating the expression of ICOS ligand (ICOSL) on MDSCs affects the differentiation of Th17 cells. The adoptive transfer of ICOSLlowMDSCs in AAA mice inhibited the differentiation of Th17 cells and the development of AAA. Meanwhile, rIL-3 promoted the survival and immunosuppressive dysfunction of MDSCs, upregulated ICOSL expression on MDSCs by inhibiting activation of the PI3K/AKT signaling pathway, and regulated MDSCs to promote the differentiation of Th17 cells via the ICOSL-ICOS axis. An increase in serum IL-3, ICOSL+MDSCs, and ICOS+Th17 cells was detected in AAA patients, and IL-3 levels were positively correlated with the proportion of ICOSL+MDSC cells. In conclusion, we uncovered a pivotal role of MDSCs in promoting the differentiation of Th17 cells through the IL-3-ICOSL-ICOS axis during AAA, providing an important theoretical basis for understanding the pathogenesis of AAA.
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Affiliation(s)
- Li Lu
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing, China
| | - Yi Jin
- Department of Vascular Surgery, Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, Nanjing, China
| | - Yuanhao Tong
- Department of Vascular Surgery, Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, Nanjing, China
| | - Lun Xiao
- Department of Vascular Surgery, Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, Nanjing, China
| | - Yayi Hou
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing, China
| | - Zhao Liu
- Department of Vascular Surgery, Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, Nanjing, China
| | - Huan Dou
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing, China
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4
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Qiang N, Ao J, Nakamura M, Chiba T, Kusakabe Y, Kaneko T, Kurosugi A, Kogure T, Ma Y, Zhang J, Ogawa K, Kan M, Iwanaga T, Sakuma T, Kanayama K, Kanzaki H, Kojima R, Nakagawa R, Kondo T, Nakamoto S, Muroyama R, Kato J, Mimura N, Ma A, Jin J, Kato N. Alteration of the tumor microenvironment by pharmacological inhibition of EZH2 in hepatocellular carcinoma. Int Immunopharmacol 2023; 118:110068. [PMID: 37001386 DOI: 10.1016/j.intimp.2023.110068] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 03/20/2023] [Accepted: 03/20/2023] [Indexed: 03/31/2023]
Abstract
Enhancer of zeste homolog 2 (EZH2), a core component of polycomb repressive component 2 is overexpressed in a variety of cancers and recognized as a therapeutic target molecule. However, EZH2 possesses immunomodulatory functions in the tumor microenvironment (TME). The impact of EZH2 on TME of hepatocellular carcinoma (HCC) using immunocompetent mouse model was evaluated in the present study. UNC1999, an EZH2 inhibitor, impaired growth of the murine HCC cells (H22 cells) and induced apoptosis in a dose-dependent manner. Although UNC1999 significantly inhibited the growth of H22 cells-derived and Hepa1-6 cells-derived tumors in nonobese diabetic/severe combined immunodeficiency mice, its antitumor effect was diminished in allogenic BALB/c and C57BL/6 mice. Flow cytometric analyses of TME cells in BALB/c mice demonstrated a significant decrease in the number of interferon‑γ+ CD8+ T cells and regulatory T cells and a significant increase in the number of myeloid-derived suppressor cells (MDSCs). Administration of Gr-1 neutralizing antibody concomitant with UNC1999 restored antitumor effect accompanied by an increase in the number of CD8+ T cells followed by a decrease in the number of MDSCs. Chemokine antibody array demonstrated an enhanced expression of chemokines responsible for MDSCs recruitment such as C5a, CCL8, and CCL9. In conclusion, the study results demonstrated that EZH2 inhibitor contributed to attenuation of tumor immunity caused by TME arrangement. Combination therapy with EZH2 inhibitors and agents that reduce MDSCs might represent a novel therapeutic strategy for HCC.
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Affiliation(s)
- Na Qiang
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Junjie Ao
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Masato Nakamura
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba, Japan.
| | - Tetsuhiro Chiba
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Yuko Kusakabe
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Tatsuya Kaneko
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Akane Kurosugi
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Tadayoshi Kogure
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Yaojia Ma
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Jiaqi Zhang
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Keita Ogawa
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Motoyasu Kan
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Terunao Iwanaga
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Takafumi Sakuma
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Kengo Kanayama
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Hiroaki Kanzaki
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Ryuta Kojima
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Ryo Nakagawa
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Takayuki Kondo
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Shingo Nakamoto
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Ryosuke Muroyama
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Jun Kato
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Naoya Mimura
- Department of Transfusion Medicine and Cell Therapy, Chiba University Hospital, Chiba, Japan
| | - Anqi Ma
- Mount Sinai Center for Therapeutics Discovery, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Department of Oncological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Jian Jin
- Mount Sinai Center for Therapeutics Discovery, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Department of Oncological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Naoya Kato
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba, Japan
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5
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Neutrophils Promote Glioblastoma Tumor Cell Migration after Biopsy. Cells 2022; 11:cells11142196. [PMID: 35883641 PMCID: PMC9324761 DOI: 10.3390/cells11142196] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 07/07/2022] [Accepted: 07/08/2022] [Indexed: 02/01/2023] Open
Abstract
Glioblastoma is diagnosed by biopsy or, if clinically feasible, tumor resection. However, emerging evidence suggests that this surgical intervention may increase the risk of tumor cell spread. It has been hypothesized that the damage to the tumor leads to infiltration of immune cells that consequently form an environment that favors tumor cell motility. In mouse glioma models, it was previously found that biopsy induced migration of tumor cells in vivo and that recruitment of monocytes from the blood was involved in this effect. However, the role of neutrophils in this process is still unclear. Here, we study the contribution of neutrophils on the pro-migratory effect of surgical interventions in glioma. Using repetitive intravital microscopy, in vivo migration of glioma tumor cells before and after biopsy was compared in mice systemically depleted of neutrophils. Interestingly, macrophages/microglia were almost completely absent from neutrophil-depleted tumors, indicating that neutrophils may be indirectly involved in biopsy-induced migration of glioma tumor cells through the recruitment of macrophages to the tumor. To further investigate whether neutrophils have the potential to also directly promote glioblastoma tumor cell migration, we performed in vitro migration assays using human neutrophils. Indeed, wound-healing of human primary glioblastoma tumor cell lines was promoted by human neutrophils. The pro-migratory effects of human neutrophils on glioblastoma tumor cells could also be recapitulated in transwell migration assays, indicating that soluble factor(s) are involved. We therefore provide evidence for both an indirect and direct involvement of neutrophils in tumor spread following biopsy of glioblastoma tumors.
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6
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Anti-Gr-1 Antibody Provides Short-Term Depletion of MDSC in Lymphodepleted Mice with Active-Specific Melanoma Therapy. Vaccines (Basel) 2022; 10:vaccines10040560. [PMID: 35455309 PMCID: PMC9032646 DOI: 10.3390/vaccines10040560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 03/24/2022] [Accepted: 03/26/2022] [Indexed: 11/28/2022] Open
Abstract
Lymphodepletion, reconstitution and active-specific tumor cell vaccination (LRAST) enhances the induction of tumor-specific T cells in a murine melanoma model. Myeloid-derived suppressor cells (MDSC) may counteract the induction of tumor-reactive T cells and their therapeutic efficacy. Thus, the aim of the study was to evaluate a possible benefit of MDSC depletion using anti-Gr-1 antibodies (Ab) in combination with LRAST. Female C57BL/6 mice with 3 days established subcutaneous (s.c.) D5 melanoma were lymphodepleted with cyclophosphamide and reconstituted with naive splenocytes. Vaccination was performed with irradiated syngeneic mGM-CSF-secreting D5G6 melanoma cells. MDSC depletion was performed using anti-Gr-1 Ab (clone RB6-8C5). Induction of tumor-specific T cells derived from tumor vaccine draining lymph nodes (TVDLN) was evaluated by the amount of tumor-specific interferon (IFN)-γ release. LRAST combined with anti-Gr-1 mAb administration enhanced the induction of tumor-specific T cells in TVDLN capable of releasing IFN-γ in a tumor-specific manner. Additional anti-Gr-1 mAb administration in LRAST-treated mice delayed growth of D5 melanomas by two weeks. Furthermore, we elucidate the impact of anti-Gr-1-depleting antibodies on the memory T cell compartment. Our data indicate that standard of care treatment regimens against cancer can be improved by implementing agents, e.g., depleting antibodies, which target and eliminate MDSC.
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7
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Dietz S, Schwarz J, Velic A, González-Menéndez I, Quintanilla-Martinez L, Casadei N, Marmé A, Poets CF, Gille C, Köstlin-Gille N. Human Leucocyte Antigen G and Murine Qa-2 Are Critical for Myeloid Derived Suppressor Cell Expansion and Activation and for Successful Pregnancy Outcome. Front Immunol 2022; 12:787468. [PMID: 35111157 PMCID: PMC8801456 DOI: 10.3389/fimmu.2021.787468] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 12/27/2021] [Indexed: 12/03/2022] Open
Abstract
During pregnancy, maternal immune system has to balance tightly between protection against pathogens and tolerance towards a semi-allogeneic organism. Dysfunction of this immune adaptation can lead to severe complications such as pregnancy loss, preeclampsia or fetal growth restriction. In the present study we analyzed the impact of the murine MHC class Ib molecule Qa-2 on pregnancy outcome in vivo. We demonstrate that lack of Qa-2 led to intrauterine growth restriction and increased abortion rates especially in late pregnancy accompanied by a disturbed trophoblast invasion and altered spiral artery remodeling as well as protein aggregation in trophoblast cells indicating a preeclampsia-like phenotype. Furthermore, lack of Qa-2 caused imbalanced immunological adaptation to pregnancy with altered immune cell and especially T-cell homeostasis, reduced Treg numbers and decreased accumulation and functional activation of myeloid-derived suppressor cells. Lastly, we show that application of sHLA-G reduced abortion rates in Qa-2 deficient mice by inducing MDSC. Our results highlight the importance of an interaction between HLA-G and MDSC for pregnancy success and the therapeutic potential of HLA-G for treatment of immunological pregnancy complications.
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Affiliation(s)
- Stefanie Dietz
- Department of Neonatology, Tuebingen University Children's Hospital, Tuebingen, Germany
| | - Julian Schwarz
- Department of Neonatology, Tuebingen University Children's Hospital, Tuebingen, Germany
| | - Ana Velic
- Interfaculty Institute for Cell Biology, Proteome Center Tuebingen (PCT), University of Tuebingen, Tübingen, Germany
| | | | | | - Nicolas Casadei
- Next Generation Sequencing (NGS) Competence Center Tuebingen (NCCT), Tuebingen, Germany; Institute of Medical Genetics and Applied Genomics, University of Tuebingen, Tuebingen, Germany
| | - Alexander Marmé
- Gynecology and Obstetrics Practice, Am Lustnauer Tor, Tuebingen, Germany
| | - Christian F Poets
- Department of Neonatology, Tuebingen University Children's Hospital, Tuebingen, Germany
| | - Christian Gille
- Department of Neonatology, Tuebingen University Children's Hospital, Tuebingen, Germany.,Department of Neonatology, Heidelberg University Children's Hospital, Heidelberg, Germany
| | - Natascha Köstlin-Gille
- Department of Neonatology, Tuebingen University Children's Hospital, Tuebingen, Germany.,Department of Neonatology, Heidelberg University Children's Hospital, Heidelberg, Germany
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8
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Liu X, Mai J, Meng C, Spiegel AJ, Wei W, Shen H. Antitumor Immunity from Abdominal Flap-Embedded Therapeutic Cancer Vaccine. Int J Nanomedicine 2022; 17:203-212. [PMID: 35046655 PMCID: PMC8760982 DOI: 10.2147/ijn.s341394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 12/26/2021] [Indexed: 11/23/2022] Open
Affiliation(s)
- Xiaoling Liu
- Department of Nanomedicine, Houston Methodist Academic Institute, Houston, TX, 77030, USA
- Department of Breast and Thyroid Surgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong, 518036, People’s Republic of China
| | - Junhua Mai
- Department of Nanomedicine, Houston Methodist Academic Institute, Houston, TX, 77030, USA
| | - Chaoyang Meng
- Department of Nanomedicine, Houston Methodist Academic Institute, Houston, TX, 77030, USA
| | - Aldona J Spiegel
- Institute for Reconstructive Surgery, Houston Methodist Hospital, Weill Cornell Medicine, Houston, TX, USA
| | - Wei Wei
- Department of Breast and Thyroid Surgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong, 518036, People’s Republic of China
| | - Haifa Shen
- Department of Nanomedicine, Houston Methodist Academic Institute, Houston, TX, 77030, USA
- Correspondence: Haifa Shen Department of Nanomedicine, Houston Methodist Academic Institute, Houston, TX, 77030, USATel +1 713-441-7321 Email
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9
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Repression of MUC1 Promotes Expansion and Suppressive Function of Myeloid-Derived Suppressor Cells in Pancreatic and Breast Cancer Murine Models. Int J Mol Sci 2021; 22:ijms22115587. [PMID: 34070449 PMCID: PMC8197523 DOI: 10.3390/ijms22115587] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 05/21/2021] [Accepted: 05/21/2021] [Indexed: 12/12/2022] Open
Abstract
Myeloid-derived suppressor cells (MDSCs) are immature myeloid cells that are responsible for immunosuppression in tumor microenvironment. Here we report the impact of mucin 1 (MUC1), a transmembrane glycoprotein, on proliferation and functional activity of MDSCs. To determine the role of MUC1 in MDSC phenotype, we analyzed MDSCs derived from wild type (WT) and MUC1-knockout (MUC1KO) mice bearing syngeneic pancreatic (KCKO) or breast (C57MG) tumors. We observed enhanced tumor growth of pancreatic and breast tumors in the MUC1KO mice compared to the WT mice. Enhanced tumor growth in the MUC1KO mice was associated with increased numbers of suppressive MDSCs and T regulatory (Tregs) cells in the tumor microenvironment. Compared to the WT host, MUC1KO host showed higher levels of iNOS, ARG1, and TGF-β, thus promoting proliferation of MDSCs with an immature and immune suppressive phenotype. When co-cultured with effector T cells, MDSCs from MUC1KO mice led to higher repression of IL-2 and IFN-γ production by T cells as compared to MDSCs from WT mice. Lastly, MDSCs from MUC1KO mice showed higher levels of c-Myc and activated pSTAT3 as compared to MDSCs from WT mice, suggesting increased survival, proliferation, and prevention of maturation of MDSCs in the MUC1KO host. We report diminished T cell function in the KO versus WT mice. In summary, the data suggest that MUC1 may regulate signaling pathways that are critical to maintain the immunosuppressive properties of MDSCs.
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10
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McGray AJR, Eppolito C, Miliotto A, Singel KL, Stephenson K, Lugade A, Segal BH, Keler T, Webster G, Lichty B, Kozbor D, Odunsi K. A prime/boost vaccine platform efficiently identifies CD27 agonism and depletion of myeloid-derived suppressor cells as therapies that rationally combine with checkpoint blockade in ovarian cancer. Cancer Immunol Immunother 2021; 70:3451-3460. [PMID: 33880648 PMCID: PMC8057655 DOI: 10.1007/s00262-021-02936-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 03/31/2021] [Indexed: 12/30/2022]
Abstract
Cancer immunotherapies have generated remarkable clinical responses for some patients with advanced/metastatic disease, prompting exploration of rational combination therapies to bolster anti-tumor immunity in patients with limited response or those who experience tumor progression following an initial response to immunotherapy. In contrast to other tumor indications, objective response rates to single-agent PD-1/PD-L1 blockade in ovarian cancer are limited, suggesting a need to identify combinatorial approaches that lead to tumor regression in a setting where checkpoint blockade alone is ineffective. Using a pre-clinical model of aggressive intraperitoneal ovarian cancer, we have previously reported on a heterologous prime/boost cancer vaccine that elicits robust anti-tumor immunity, prolongs survival of tumor-bearing mice, and which is further improved when combined with checkpoint blockade. As tumor control in this model is CD8 + T cell dependent, we reasoned that the prime/boost vaccine platform could be used to explore additional treatment combinations intended to bolster the effects of CD8 + T cells. Using whole tumor transcriptomic data, we identified candidate therapeutic targets anticipated to rationally combine with prime/boost vaccination. In the context of a highly effective cancer vaccine, CD27 agonism or antibody-mediated depletion of granulocytic cells each modestly increased tumor control following vaccination, with anti-PD-1 therapy further improving treatment efficacy. These findings support the use of immunotherapies with well-defined mechanisms(s) of action as a valuable platform for identifying candidate combination approaches for further therapeutic testing in ovarian cancer.
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Affiliation(s)
- A J R McGray
- Center for Immunotherapy, Roswell Park Comprehensive Cancer Center, Roswell Park Cancer Institute, Elm and Carlton Sts, Buffalo, NY, 14263, USA.
| | - C Eppolito
- Center for Immunotherapy, Roswell Park Comprehensive Cancer Center, Roswell Park Cancer Institute, Elm and Carlton Sts, Buffalo, NY, 14263, USA
| | - A Miliotto
- Center for Immunotherapy, Roswell Park Comprehensive Cancer Center, Roswell Park Cancer Institute, Elm and Carlton Sts, Buffalo, NY, 14263, USA
| | - K L Singel
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
- Office of Evaluation, Performance, and Reporting, National Institutes of Health, Bethesda, MD, USA
| | - K Stephenson
- McMaster Immunology Research Centre, McMaster University, Hamilton, ON, Canada
- Turnstone Biologics, Ottawa, ON, Canada
| | - A Lugade
- Center for Immunotherapy, Roswell Park Comprehensive Cancer Center, Roswell Park Cancer Institute, Elm and Carlton Sts, Buffalo, NY, 14263, USA
| | - B H Segal
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
- Department of Internal Medicine, Roswell Park Comprehensive Cancer Center and Jacobs School of Medicine and Biomedical Sciences, University At Buffalo, Buffalo, NY, USA
| | - T Keler
- Celldex Therapeutics, Hampton, NJ, USA
| | - G Webster
- Innate Immunotherapeutics, Auckland, New Zealand
| | - B Lichty
- McMaster Immunology Research Centre, McMaster University, Hamilton, ON, Canada
| | - D Kozbor
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - K Odunsi
- Center for Immunotherapy, Roswell Park Comprehensive Cancer Center, Roswell Park Cancer Institute, Elm and Carlton Sts, Buffalo, NY, 14263, USA.
- University of Chicago Comprehensive Cancer Center, 5841 South Maryland Avenue, MC1140, Chicago, IL, 60637, USA.
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11
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Comments on the ambiguity of selected surface markers, signaling pathways and omics profiles hampering the identification of myeloid-derived suppressor cells. Cell Immunol 2021; 364:104347. [PMID: 33838447 DOI: 10.1016/j.cellimm.2021.104347] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 03/23/2021] [Accepted: 03/24/2021] [Indexed: 12/12/2022]
Abstract
Myeloid-derived suppressor cells (MDSC) are important immune-regulatory cells but their identification remains difficult. Here, we provide a critical view on selected surface markers, transcriptional and translational pathways commonly used to identify MDSC by specific, their developmental origin and new possibilities by transcriptional or proteomic profiling. Discrimination of MDSC from their non-suppressive counterparts is a prerequisite for the development of successful therapies. Understanding the switch mechanisms that direct granulocytic and monocytic development into a pro-inflammatory or anti-inflammatory direction will be crucial for therapeutic strategies. Manipulation of these myeloid checkpoints are exploited by tumors and pathogens, such as M. tuberculosis (Mtb), HIV or SARS-CoV-2, that induce MDSC for immune evasion. Thus, specific markers for MDSC identification may reveal also novel molecular candidates for therapeutic intervention at the level of MDSC.
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12
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Eckert I, Ribechini E, Lutz MB. In Vitro Generation of Murine Myeloid-Derived Suppressor Cells, Analysis of Markers, Developmental Commitment, and Function. Methods Mol Biol 2021; 2236:99-114. [PMID: 33237544 DOI: 10.1007/978-1-0716-1060-2_10] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Myeloid-derived suppressor cells (MDSC) appear at relatively low frequencies in diseased organs such as tumors or infection sites, but accumulate systemically in the spleen. So far MDSC have been reported in humans and experimental animals such as mice, rats, and nonhuman primates. Therefore, methods to generate MDSC in large amounts in vitro can serve as an additional tool to study their biology. Here, we describe in detail the generation of murine MDSC with GM-CSF from bone marrow (BM). Both subsets of granulocytic (G-MDSC) and monocytic MDSC (M-MDSC) are generated by this cytokine. We provide panels of phenotypic markers to distinguish them from non-suppressive cells and define developmental stages of monocytes developing into M-MDSC by two subsequent steps in vitro.
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Affiliation(s)
- Ina Eckert
- Institute for Virology and Immunobiology, University of Würzburg, Würzburg, Germany
| | - Eliana Ribechini
- Institute for Virology and Immunobiology, University of Würzburg, Würzburg, Germany
| | - Manfred B Lutz
- Institute for Virology and Immunobiology, University of Würzburg, Würzburg, Germany.
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13
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Wu H, Li SS, Zhou M, Jiang AN, He Y, Wang S, Yang W, Liu H. Palliative Radiofrequency Ablation Accelerates the Residual Tumor Progression Through Increasing Tumor-Infiltrating MDSCs and Reducing T-Cell-Mediated Anti-Tumor Immune Responses in Animal Model. Front Oncol 2020; 10:1308. [PMID: 33014771 PMCID: PMC7498645 DOI: 10.3389/fonc.2020.01308] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 06/23/2020] [Indexed: 12/12/2022] Open
Abstract
Previous studies showed that radiofrequency ablation (RFA) has a favorable treatment efficacy for hepatocellular carcinoma (HCC) or colorectal liver metastases (CRLMs). Palliative RFA (pRFA) resulting from larger HCC or multiple CRLMs further accelerated the progression of potential residual tumor, yet its mechanism was still unknown. This study investigated the influence of myeloid-derived suppressor cells (MDSCs) on T-cell immune responses and tumor recurrence after pRFA. CT26 tumor models were used. The percentage of MDSCs in peripheral blood was analyzed by flow cytometry after pRFA. The level of Th1 and Th2 cytokines were measured by ELISA through different treatments (n = 4/group). The tumor-infiltrating MDSCs, dendritic cells, and intracellular cytokines level were analyzed by IHC staining after different treatments. The functional CD8+ T cells were confirmed by the co-localization immunofluorescence staining. The long-term outcomes were also evaluated through CT26 and 4T1 tumor models. The results showed that tumor models treated with pRFA displayed significant increases in the percentage of MDSCs of peripheral blood and tumor infiltration. The expression level of TGF-β and IL-6 after pRFA was higher than that before pRFA by ELISA and IHC staining. After depleting MDSCs by combining with Abs, the pRFA + Abs group achieved a higher level of Th1 cytokines and greatly enhanced the percentage of tumor-infiltrating functional CD8+ T cells when compared with pRFA alone. The depletion of MDSCs through combination with Abs also resulted in tumor regression. In conclusion, pRFA accelerates the residual tumor progression through increasing tumor-infiltrating MDSCs and reducing T-cell-mediated anti-tumor immune responses, which could provide a potential approach for delaying tumor recurrence caused by pRFA.
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Affiliation(s)
- Hao Wu
- Department of Ultrasound, Institute of Ultrasound in Musculoskeletal Sports Medicine, Guangdong Second Provincial General Hospital, Southern Medical University, Guangzhou, China.,Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Ultrasound, Peking University Cancer Hospital & Institute, Beijing, China
| | - Su-Shu Li
- Department of Ultrasound, Institute of Ultrasound in Musculoskeletal Sports Medicine, Guangdong Second Provincial General Hospital, Southern Medical University, Guangzhou, China
| | - Meijun Zhou
- Department of Ultrasound, Institute of Ultrasound in Musculoskeletal Sports Medicine, Guangdong Second Provincial General Hospital, Southern Medical University, Guangzhou, China
| | - An-Na Jiang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Ultrasound, Peking University Cancer Hospital & Institute, Beijing, China
| | - Yanni He
- Department of Ultrasound, Institute of Ultrasound in Musculoskeletal Sports Medicine, Guangdong Second Provincial General Hospital, Southern Medical University, Guangzhou, China
| | - Song Wang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Ultrasound, Peking University Cancer Hospital & Institute, Beijing, China
| | - Wei Yang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Ultrasound, Peking University Cancer Hospital & Institute, Beijing, China
| | - Hongmei Liu
- Department of Ultrasound, Institute of Ultrasound in Musculoskeletal Sports Medicine, Guangdong Second Provincial General Hospital, Southern Medical University, Guangzhou, China
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14
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Differential attenuation of β2 integrin-dependent and -independent neutrophil migration by Ly6G ligation. Blood Adv 2020; 3:256-267. [PMID: 30696624 DOI: 10.1182/bloodadvances.2018026732] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Accepted: 12/11/2018] [Indexed: 12/24/2022] Open
Abstract
Antibody ligation of the murine neutrophil surface protein Ly6G disrupts neutrophil migration in some contexts but not others. We tested whether this variability reflected divergent dependence of neutrophil migration on β2 integrins, adhesion molecules that interact with Ly6G at the neutrophil surface. In integrin-dependent murine arthritis, Ly6G ligation attenuated joint inflammation, even though mice lacking Ly6G altogether developed arthritis normally. By contrast, Ly6G ligation had no impact on integrin-independent neutrophil migration into inflamed lung. In peritoneum, the role of β2 integrins varied with stimulus, proving dispensable for neutrophil entry in Escherichia coli peritonitis but contributory in interleukin 1 (IL-1)-mediated sterile peritonitis. Correspondingly, Ly6G ligation attenuated only IL-1 peritonitis, disrupting the molecular association between integrins and Ly6G and inducing cell-intrinsic blockade restricted to integrin-dependent migration. Consistent with this observation, Ly6G ligation impaired integrin-mediated postadhesion strengthening for neutrophils arresting on activated cremaster endothelium in vivo. Together, these findings identify selective inhibition of integrin-mediated neutrophil emigration through Ly6G ligation, highlighting the marked site and stimulus specificity of β2 integrin dependence in neutrophil migration.
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15
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Stackowicz J, Jönsson F, Reber LL. Mouse Models and Tools for the in vivo Study of Neutrophils. Front Immunol 2020; 10:3130. [PMID: 32038641 PMCID: PMC6985372 DOI: 10.3389/fimmu.2019.03130] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 12/23/2019] [Indexed: 12/21/2022] Open
Abstract
Neutrophils are the most abundant leukocytes in human blood and critical actors of the immune system. Many neutrophil functions and facets of their activity in vivo were revealed by studying genetically modified mice or by tracking fluorescent neutrophils in animals using imaging approaches. Assessing the roles of neutrophils can be challenging, especially when exact molecular pathways are questioned or disease states are interrogated that alter normal neutrophil homeostasis. This review discusses the main in vivo models for the study of neutrophils, their advantages and limitations. The side-by-side comparison underlines the necessity to carefully choose the right model(s) to answer a given scientific question, and exhibit caveats that need to be taken into account when designing experimental procedures. Collectively, this review suggests that at least two models should be employed to legitimately conclude on neutrophil functions.
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Affiliation(s)
- Julien Stackowicz
- Institut Pasteur, Department of Immunology, Unit of Antibodies in Therapy and Pathology, UMR INSERM 1222, Paris, France.,Sorbonne Université, Collège Doctoral, Paris, France
| | - Friederike Jönsson
- Institut Pasteur, Department of Immunology, Unit of Antibodies in Therapy and Pathology, UMR INSERM 1222, Paris, France
| | - Laurent L Reber
- Institut Pasteur, Department of Immunology, Unit of Antibodies in Therapy and Pathology, UMR INSERM 1222, Paris, France.,Center for Pathophysiology Toulouse-Purpan (CPTP), UMR 1043, University of Toulouse, INSERM, CNRS, Toulouse, France
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16
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Target-Specific Fluorescence-Mediated Tomography for Non-Invasive and Dynamic Assessment of Early Neutrophil Infiltration in Murine Experimental Colitis. Cells 2019; 8:cells8111328. [PMID: 31661876 PMCID: PMC6912230 DOI: 10.3390/cells8111328] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 10/18/2019] [Accepted: 10/26/2019] [Indexed: 12/13/2022] Open
Abstract
The role of neutrophils in the pathogenesis of inflammatory bowel disease (IBD) is still only incompletely understood. Here, we evaluated target-specific fluorescence-mediated tomography (FMT) for visualization of neutrophil infiltration in murine experimental DSS-induced colitis. Colitis was assessed using clinical, endoscopic, and histopathological parameters. Intestinal neutrophil infiltration was determined at day 0, 4, and 10 by targeted FMT after injection of a neutrophil-specific fluorescence-labelled monoclonal antibody (Gr-1). Complementary, immunofluorescence tissue sections with Gr-1 and ELISA-based assessment of tissue myeloperoxidase (MPO) served as the gold standard for the quantification of neutrophil infiltration. Colitic animals showed decreasing body weight, presence of fecal occult blood, and endoscopic signs of inflammation. FMT revealed a significantly increased level of fluorescence only four days after colitis induction as compared to pre-experimental conditions (pmol tracer 73.2 ± 18.1 versus 738.6 ± 80.7; p < 0.05), while neither body weight nor endoscopic assessment showed significant changes at this early time. Confirmatory, post-mortem immunofluorescence studies and measurements of tissue MPO confirmed the presence of increased neutrophil infiltration in colitic mice compared to controls. Concluding, Gr-1 targeted FMT can detect early colonic infiltration of neutrophils in experimental colitis even before clinical symptoms or endoscopic alterations occur. Therefore, FMT might be an important tool for repetitive and non-invasive monitoring of inflammatory cell infiltrate in intestinal inflammation.
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17
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Oliveira AC, Fu C, Lu Y, Williams MA, Pi L, Brantly ML, Ventetuolo CE, Raizada MK, Mehrad B, Scott EW, Bryant AJ. Chemokine signaling axis between endothelial and myeloid cells regulates development of pulmonary hypertension associated with pulmonary fibrosis and hypoxia. Am J Physiol Lung Cell Mol Physiol 2019; 317:L434-L444. [PMID: 31364370 PMCID: PMC6842914 DOI: 10.1152/ajplung.00156.2019] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 07/11/2019] [Accepted: 07/24/2019] [Indexed: 12/14/2022] Open
Abstract
Pulmonary hypertension complicates the care of many patients with chronic lung diseases (defined as Group 3 pulmonary hypertension), yet the mechanisms that mediate the development of pulmonary vascular disease are not clearly defined. Despite being the most prevalent form of pulmonary hypertension, to date there is no approved treatment for patients with disease. Myeloid-derived suppressor cells (MDSCs) and endothelial cells in the lung express the chemokine receptor CXCR2, implicated in the evolution of both neoplastic and pulmonary vascular remodeling. However, precise cellular contribution to lung disease is unknown. Therefore, we used mice with tissue-specific deletion of CXCR2 to investigate the role of this receptor in Group 3 pulmonary hypertension. Deletion of CXCR2 in myeloid cells attenuated the recruitment of polymorphonuclear MDSCs to the lungs, inhibited vascular remodeling, and protected against pulmonary hypertension. Conversely, loss of CXCR2 in endothelial cells resulted in worsened vascular remodeling, associated with increased MDSC migratory capacity attributable to increased ligand availability, consistent with analyzed patient sample data. Taken together, these data suggest that CXCR2 regulates MDSC activation, informing potential therapeutic application of MDSC-targeted treatments.
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Affiliation(s)
- Aline C Oliveira
- Department of Physiology and Functional Genomics, College of Medicine, University of Florida, Gainesville, Florida
| | - Chunhua Fu
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, College of Medicine, University of Florida, Gainesville, Florida
| | - Yuanqing Lu
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, College of Medicine, University of Florida, Gainesville, Florida
| | - Mason A Williams
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, College of Medicine, University of Florida, Gainesville, Florida
| | - Liya Pi
- Department of Pediatrics, University of Florida, Gainesville, Florida
| | - Mark L Brantly
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, College of Medicine, University of Florida, Gainesville, Florida
| | - Corey E Ventetuolo
- Division of Pulmonary, Critical Care and Sleep Medicine, Alpert Medical School of Brown University, Providence, Rhode Island
| | - Mohan K Raizada
- Department of Physiology and Functional Genomics, College of Medicine, University of Florida, Gainesville, Florida
| | - Borna Mehrad
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, College of Medicine, University of Florida, Gainesville, Florida
| | - Edward W Scott
- Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, Florida
| | - Andrew J Bryant
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, College of Medicine, University of Florida, Gainesville, Florida
- Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, Florida
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18
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Immunostimulatory functions of adoptively transferred MDSCs in experimental blunt chest trauma. Sci Rep 2019; 9:7992. [PMID: 31142770 PMCID: PMC6541619 DOI: 10.1038/s41598-019-44419-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 05/14/2019] [Indexed: 01/15/2023] Open
Abstract
Myeloid-derived suppressor cells (MDSCs) expand during inflammation and exhibit immunomodulatory functions on innate and adaptive immunity. However, their impact on trauma-induced immune responses, characterized by an early pro-inflammatory phase and dysregulated adaptive immunity involving lymphocyte apoptosis, exhaustion and unresponsiveness is less clear. Therefore, we adoptively transferred in vitro-generated MDSCs shortly before experimental blunt chest trauma (TxT). MDSCs preferentially homed into spleen and liver, but were undetectable in the injured lung, although pro-inflammatory mediators transiently increased in the bronchoalveolar lavage (BAL). Surprisingly, MDSC treatment strongly increased splenocyte numbers, however, without altering the percentage of splenic leukocyte populations. T cells of MDSC-treated TxT mice exhibited an activated phenotype characterized by expression of activation markers and elevated proliferative capacity in vitro, which was not accompanied by up-regulated exhaustion markers or unresponsiveness towards in vitro activation. Most importantly, also T cell expansion after staphylococcal enterotoxin B (SEB) stimulation in vivo was unchanged between MDSC-treated or untreated mice. After MDSC transfer, T cells preferentially exhibited a Th1 phenotype, a prerequisite to circumvent post-traumatic infectious complications. Our findings reveal a totally unexpected immunostimulatory role of adoptively transferred MDSCs in TxT and might offer options to interfere with post-traumatic malfunction of the adaptive immune response.
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19
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Abstract
Myeloid-derived suppressor cells (MDSCs) are a heterogeneous population of immunosuppressive cells of the myeloid lineage upregulated by mediators of inflammation, such as IL-2, granulocyte colony-stimulating factor, and S100A8/A9. These cells have been studied extensively by tumor biologists. Because of their robust immunosuppressive potential, MDSCs have stirred recent interest among transplant immunologists as well. MDSCs inhibit T-cell responses through, among other mechanisms, the activity of arginase-1 and inducible nitric oxide synthase, and the expansion of T regulatory cells. In the context of transplantation, MDSCs have been studied in several animal models, and to a lesser degree in humans. Here, we will review the immunosuppressive qualities of this important cell type and discuss the relevant studies of MDSCs in transplantation. It may be possible to exploit the immunosuppressive capacity of MDSCs for the benefit of transplant patients.
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20
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Stokes J, Hoffman EA, Molina MS, Eremija J, Larmonier N, Zeng Y, Katsanis E. Bendamustine with Total Body Irradiation Limits Murine Graft-versus-Host Disease in Part Through Effects on Myeloid-Derived Suppressor Cells. Biol Blood Marrow Transplant 2018; 25:405-416. [PMID: 30326280 DOI: 10.1016/j.bbmt.2018.10.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 10/09/2018] [Indexed: 10/28/2022]
Abstract
Graft-versus-host disease (GVHD) remains a significant challenge in allogeneic hematopoietic cell transplantation (HCT). An underinvestigated strategy to reduce GVHD is the modification of the preparative conditioning regimen. In the present study, we aimed to evaluate GVHD associated with bendamustine (BEN) conditioning in conjunction with total body irradiation (TBI) as an alternative to the standard myeloablative regimen of cyclophosphamide (CY) and TBI. We demonstrate that BEN-TBI conditioning, although facilitating complete donor chimerism, results in significantly less GVHD compared with CY-TBI. In BEN-TBI-conditioned mice, suppressive CD11b+Gr-1high myeloid cells are increased in the blood, bone marrow, spleen, and intestines. When Gr-1high cells are depleted before transplantation, the beneficial effects of BEN-TBI are partially lost. Alternatively, administration of granulocyte colony-stimulating factor, which promotes CD11b+Gr-1+ myeloid cell expansion, is associated with a trend toward increased survival in BEN-TBI-conditioned mice. These findings indicate a potential role of myeloid-derived suppressor cells in the mechanism by which BEN allows engraftment with reduced GVHD. BEN-TBI conditioning may present a safer alternative to CY-TBI conditioning for allogeneic HCT.
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Affiliation(s)
- Jessica Stokes
- Department of Pediatrics, University of Arizona, Tucson, Arizona
| | - Emely A Hoffman
- Department of Pediatrics, University of Arizona, Tucson, Arizona
| | - Megan S Molina
- Department of Pediatrics, University of Arizona, Tucson, Arizona; Department of Immunobiology, University of Arizona, Tucson, Arizona
| | - Jelena Eremija
- Department of Pediatrics, University of Arizona, Tucson, Arizona
| | - Nicolas Larmonier
- CNRS UMR 5164, ImmunoConcEpT, University of Bordeaux, Bordeaux, France
| | - Yi Zeng
- Department of Pediatrics, University of Arizona, Tucson, Arizona; University of Arizona Cancer Center, Tucson, Arizona
| | - Emmanuel Katsanis
- Department of Pediatrics, University of Arizona, Tucson, Arizona; Department of Immunobiology, University of Arizona, Tucson, Arizona; Department of Medicine, University of Arizona, Tucson, Arizona; Department of Pathology, University of Arizona, Tucson, Arizona; University of Arizona Cancer Center, Tucson, Arizona.
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21
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Solito S, Pinton L, De Sanctis F, Ugel S, Bronte V, Mandruzzato S, Marigo I. Methods to Measure MDSC Immune Suppressive Activity In Vitro and In Vivo. ACTA ACUST UNITED AC 2018; 124:e61. [PMID: 30303619 DOI: 10.1002/cpim.61] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
This unit presents methods to assess the immunosuppressive properties of immunoregulatory cells of myeloid origin, such as myeloid-derived suppressor cells (MDSCs), both in vitro and in vivo in mice, as well as in biological samples from cancer patients. These methods could be adapted to test the impact of different suppressive populations on T cell activation, proliferation, and cytotoxic activity; moreover, they could be useful to assess the influence exerted by genetic modifications, chemical inhibitors, and drugs on immune suppressive pathways © 2018 by John Wiley & Sons, Inc.
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Affiliation(s)
- Samantha Solito
- Oncology and Immunology Section, Department of Surgery, Oncology and Gastroenterology, University of Padova, Padova, Italy
| | - Laura Pinton
- Veneto Institute of Oncology IOV- IRCCS, Padova, Italy
| | - Francesco De Sanctis
- Immunology Section, Department of Medicine, Verona University Hospital, Verona, Italy
| | - Stefano Ugel
- Immunology Section, Department of Medicine, Verona University Hospital, Verona, Italy
| | - Vincenzo Bronte
- Immunology Section, Department of Medicine, Verona University Hospital, Verona, Italy
| | - Susanna Mandruzzato
- Oncology and Immunology Section, Department of Surgery, Oncology and Gastroenterology, University of Padova, Padova, Italy
- Veneto Institute of Oncology IOV- IRCCS, Padova, Italy
| | - Ilaria Marigo
- Veneto Institute of Oncology IOV- IRCCS, Padova, Italy
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22
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Bachran C, Schröder M, Conrad L, Cragnolini JJ, Tafesse FG, Helming L, Ploegh HL, Swee LK. The activity of myeloid cell-specific VHH immunotoxins is target-, epitope-, subset- and organ dependent. Sci Rep 2017; 7:17916. [PMID: 29263417 PMCID: PMC5738442 DOI: 10.1038/s41598-017-17948-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 11/30/2017] [Indexed: 12/01/2022] Open
Abstract
The central role of myeloid cells in driving autoimmune diseases and cancer has raised interest in manipulating their function or depleting them for therapeutic benefits. To achieve this, antibodies are used to antagonize differentiation, survival and polarization signals or to kill target cells, for example in the form of antibody-drug conjugates (ADC). The action of ADC in vivo can be hard to predict based on target expression pattern alone. The biology of the targeted receptor as well as its interplay with the ADC can have drastic effects on cell apoptosis versus survival. Here we investigated the efficacy of CD11b or Ly-6C/Ly-6G-specific variable fragments of camelid heavy chain-only antibodies (VHH) conjugated to Pseudomonas exotoxin A to deplete myeloid cells in vitro and in vivo. Our data highlight striking differences in cell killing in vivo, depending on the cell subset and organs targeted, but not antigen expression level or VHH affinity. We observed striking differences in depletion efficiency of monocytes versus granulocytes in mice. Despite similar binding of Ly-6C/Ly-6G-specific VHH immunotoxin to granulocytes and monocytes, granulocytes were significantly more sensitive than monocytes to immunotoxins treatment. Our results illustrate the need of early, thorough in vivo characterization of ADC candidates.
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Affiliation(s)
| | - Matthias Schröder
- BioMed X Innovation Center, Im Neuenheimer Feld, Heidelberg, Germany
| | - Lena Conrad
- BioMed X Innovation Center, Im Neuenheimer Feld, Heidelberg, Germany
| | - Juan J Cragnolini
- Whitehead Institute for Biomedical Research, Cambridge, MA, 02142, USA
| | - Fikadu G Tafesse
- Whitehead Institute for Biomedical Research, Cambridge, MA, 02142, USA
| | | | - Hidde L Ploegh
- Whitehead Institute for Biomedical Research, Cambridge, MA, 02142, USA
- Program in Cellular and Molecular Medicine, Boston Children's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Lee Kim Swee
- BioMed X Innovation Center, Im Neuenheimer Feld, Heidelberg, Germany.
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23
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Li J, Zhang X, Liu Q, Yang M, Zhou Z, Ye Y, Zhou Z, He X, Wang L. Myeloid-derived suppressor cells accumulate among myeloid cells contributing to tumor growth in matrix metalloproteinase 12 knockout mice. Cell Immunol 2017; 327:1-12. [PMID: 29555056 DOI: 10.1016/j.cellimm.2017.12.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 12/07/2017] [Accepted: 12/12/2017] [Indexed: 01/04/2023]
Abstract
Myeloid-derived suppressor cells (MDSCs) are found frequently in patients and mice bearing tumors, which derived from immature myeloid cells. In healthy individuals, immature myeloid cells formed in the bone marrow differentiating to dendritic cells, macrophages and neutrophils. However, it is unclear whether some gene deficiency will lead to MDSCs accumulation in mice without bearing tumor. Here, we observed that MDSCs accumulated in the bone marrow of matrix metalloproteinase 12 knockout mice (MMP12-/- mice) compared with wild type mice (MMP12+/+ mice). And the number of CD4+ cells dramatically decreased, regulatory T cells was up-regulation and MDSCs function were determined. The results suggested that immune surveillance have been impaired in MMP12-/- transgenic mice. After intravenous administration of B16 murine melanoma cells, MMP12-/- mice developed more metastatic pulmonary nodules than MMP12+/+ mice. Meanwhile, more MDSCs appeared in the tumors of MMP12-/- mice compared with those of MMP12+/+ mice. Mechanistically, we performed a MDSC blocking assay, finding that blockade of MDSCs resulted in reducing growth of tumors in MMP12-/- mice. Furthermore, we ascertained that macrophages in MMP12-/- mice abundantly secrete IL-1β in bone marrow which induce the accumulation of MDSCs in the bone marrow. Together, these results demonstrated that the macrophages in MMP12-/- mice could crosstalk with myeloid cells through IL-1β, inducing MDSCs accumulation, then contributing to tumor growth. It has revealed that the critical roles of macrophage in myeloid cells differentiation.
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Affiliation(s)
- Jiangchao Li
- Vascular Biology Research Institute, School of Basic Courses, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Xiaohan Zhang
- Vascular Biology Research Institute, School of Basic Courses, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Qing Liu
- Vascular Biology Research Institute, School of Basic Courses, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Mingming Yang
- Vascular Biology Research Institute, School of Basic Courses, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Zijun Zhou
- Vascular Biology Research Institute, School of Basic Courses, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Yuxiang Ye
- Vascular Biology Research Institute, School of Basic Courses, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Zeqi Zhou
- Vascular Biology Research Institute, School of Basic Courses, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Xiaodong He
- Vascular Biology Research Institute, School of Basic Courses, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Lijing Wang
- Vascular Biology Research Institute, School of Basic Courses, Guangdong Pharmaceutical University, Guangzhou 510006, China.
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24
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The role of monocytes in models of infection by protozoan parasites. Mol Immunol 2017; 88:174-184. [PMID: 28704704 DOI: 10.1016/j.molimm.2017.06.020] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2017] [Revised: 05/29/2017] [Accepted: 06/04/2017] [Indexed: 02/07/2023]
Abstract
The confirmation of developmental differences between tissue macrophages and peripheral monocytes has changed our view of the functions and dynamics of these two important components of the innate immune system. It has been demonstrated conclusively that homeostasis of tissue resident macrophages is maintained by a low proliferative turn over. During an inflammatory response, bone marrow derived monocytes enter the tissue in large numbers and take part in the defense against the pathogens. After the destruction of invading pathogens, these cells disappear and tissue resident macrophages can be detected again. This new appreciation of the innate immune response has not only answered many outstanding questions regarding the role of the different myeloid cell types in inflammation, but also opened up new areas of research relating to the tissue- and pathogen-specific fate of the inflammatory macrophages or dendritic cells (DCs), and the transfer of this knowledge from mouse models to the human immune system. Nevertheless, there is still confusion in infection models, and especially in studies of human infections, as to what extent these recent observations and findings influence previous interpretations of data. This review will focus on insights from mouse models, summarize the literature on the ontogeny of macrophages and monocytes, explain the role of frequently used monocyte markers and effector molecules, and finally, discuss the role of inflammatory monocytes/macrophages/DCs in two experimental parasitic diseases.
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25
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Mourik BC, Leenen PJM, de Knegt GJ, Huizinga R, van der Eerden BCJ, Wang J, Krois CR, Napoli JL, Bakker-Woudenberg IAJM, de Steenwinkel JEM. Immunotherapy Added to Antibiotic Treatment Reduces Relapse of Disease in a Mouse Model of Tuberculosis. Am J Respir Cell Mol Biol 2017; 56:233-241. [PMID: 27654457 DOI: 10.1165/rcmb.2016-0185oc] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Immune-modulating drugs that target myeloid-derived suppressor cells or stimulate natural killer T cells have been shown to reduce mycobacterial loads in tuberculosis (TB). We aimed to determine if a combination of these drugs as adjunct immunotherapy to conventional antibiotic treatment could also increase therapeutic efficacy against TB. In our model of pulmonary TB in mice, we applied treatment with isoniazid, rifampicin, and pyrazinamide for 13 weeks alone or combined with immunotherapy consisting of all-trans retinoic acid, 1,25(OH)2-vitamin D3, and α-galactosylceramide. Outcome parameters were mycobacterial load during treatment (therapeutic activity) and 13 weeks after termination of treatment (therapeutic efficacy). Moreover, cellular changes were analyzed using flow cytometry and cytokine expression was assessed at the mRNA and protein levels. Addition of immunotherapy was associated with lower mycobacterial loads after 5 weeks of treatment and significantly reduced relapse of disease after a shortened 13-week treatment course compared with antibiotic treatment alone. This was accompanied by reduced accumulation of immature myeloid cells in the lungs at the end of treatment and increased TNF-α protein levels throughout the treatment period. We demonstrate, in a mouse model of pulmonary TB, that immunotherapy consisting of three clinically approved drugs can improve the therapeutic efficacy of standard antibiotic treatment.
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Affiliation(s)
- Bas C Mourik
- 1 Department of Medical Microbiology and Infectious Diseases
| | | | | | | | - Bram C J van der Eerden
- 3 Department of Internal Medicine, Erasmus MC, University Medical Center, Rotterdam, the Netherlands; and
| | - Jinshan Wang
- 4 Department of Nutritional Science and Toxicology, University of California, Berkeley, California
| | - Charles R Krois
- 4 Department of Nutritional Science and Toxicology, University of California, Berkeley, California
| | - Joseph L Napoli
- 4 Department of Nutritional Science and Toxicology, University of California, Berkeley, California
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Le Noci V, Sommariva M, Tortoreto M, Zaffaroni N, Campiglio M, Tagliabue E, Balsari A, Sfondrini L. Reprogramming the lung microenvironment by inhaled immunotherapy fosters immune destruction of tumor. Oncoimmunology 2016; 5:e1234571. [PMID: 27999750 DOI: 10.1080/2162402x.2016.1234571] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 09/01/2016] [Accepted: 09/02/2016] [Indexed: 12/17/2022] Open
Abstract
Due to their constant exposure to inhaled antigens, lungs represent a particularly immunosuppressive environment that limits excessive immune responses; however, cancer cells can exploit this unique environment for their growth. We previously described the ability of aerosolized CpG-ODN combined with Poly(I:C) (TLR9 and TLR3 agonists, respectively) to promote antitumor immunity in a B16 melanoma lung metastasis model. Here, we explored the possibility of improving the therapeutic efficacy of TLR9/TLR3 agonist combinations by including in the inhalant either an antibody directed to both Ly6G and Ly6C markers to locally deplete myeloid-derived suppressive cells (MDSCs) or IFNα to directly activate the natural killer (NK) and macrophage innate immune cells in the lung. Addition of nebulized anti-MDSC antibody RB6-8C5 to aerosolized CpG-ODN/Poly(I:C) resulted in reduced mRNA levels of immunsuppressive molecules (IL10, Arg-1, and Nos2), increased activation of resident NK cells and improved treatment outcome, with a significant reduction in established B16 melanoma lung metastases compared to treatment with CpG-ODN/Poly(I:C) alone. Likewise, addition of aerosolized IFNα led to increased mRNA levels of proinflammatory cytokines (IL15 and IFNγ) in the lung and recruitment of highly activated NK cells, with no evident signs of toxicity and with a significantly improved antitumor effect as compared with aerosolized CpG-ODN/Poly(I:C). Combining both IFNα and RB6-8C5 with CpG-ODN/Poly(I:C) did not produce an additive effect compared to IFNα + CpG-ODN/Poly(I:C) or RB6-8C5 + CpG-ODN/Poly(I:C). Our results indicate that the inhalation therapy is a feasible and non-invasive strategy to deliver immunodulatory molecules, including antibodies and cytokines that reprogram the lung tumor microenvironment to foster immune destruction of tumors.
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Affiliation(s)
- Valentino Le Noci
- Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Milan, Italy; Molecular Targeting Unit, Milan, Italy
| | - Michele Sommariva
- Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Milan, Italy; Molecular Targeting Unit, Milan, Italy
| | - Monica Tortoreto
- Molecular Pharmacology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori , Milan, Italy
| | - Nadia Zaffaroni
- Molecular Pharmacology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori , Milan, Italy
| | | | | | - Andrea Balsari
- Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Milan, Italy; Molecular Targeting Unit, Milan, Italy
| | - Lucia Sfondrini
- Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano , Milan, Italy
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Ma C, Greten TF. Editorial: “Invisible” MDSC in tumor-bearing individuals after antibody depletion: fact or fiction? J Leukoc Biol 2016; 99:794. [DOI: 10.1189/jlb.5ce0116-047r] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 03/08/2016] [Indexed: 11/24/2022] Open
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Pionnier N, Brotin E, Karadjian G, Hemon P, Gaudin-Nomé F, Vallarino-Lhermitte N, Nieguitsila A, Fercoq F, Aknin ML, Marin-Esteban V, Chollet-Martin S, Schlecht-Louf G, Bachelerie F, Martin C. Neutropenic Mice Provide Insight into the Role of Skin-Infiltrating Neutrophils in the Host Protective Immunity against Filarial Infective Larvae. PLoS Negl Trop Dis 2016; 10:e0004605. [PMID: 27111140 PMCID: PMC4844152 DOI: 10.1371/journal.pntd.0004605] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 03/12/2016] [Indexed: 01/06/2023] Open
Abstract
Our knowledge and control of the pathogenesis induced by the filariae remain limited due to experimental obstacles presented by parasitic nematode biology and the lack of selective prophylactic or curative drugs. Here we thought to investigate the role of neutrophils in the host innate immune response to the infection caused by the Litomosoides sigmodontis murine model of human filariasis using mice harboring a gain-of-function mutation of the chemokine receptor CXCR4 and characterized by a profound blood neutropenia (Cxcr4+/1013). We provided manifold evidence emphasizing the major role of neutrophils in the control of the early stages of infection occurring in the skin. Firstly, we uncovered that the filarial parasitic success was dramatically decreased in Cxcr4+/1013 mice upon subcutaneous delivery of the infective stages of filariae (infective larvae, L3). This protection was linked to a larger number of neutrophils constitutively present in the skin of the mutant mice herein characterized as compared to wild type (wt) mice. Indeed, the parasitic success in Cxcr4+/1013 mice was normalized either upon depleting neutrophils, including the pool in the skin, or bypassing the skin via the intravenous infection of L3. Second, extending these observations to wt mice we found that subcutaneous delivery of L3 elicited an increase of neutrophils in the skin. Finally, living L3 larvae were able to promote in both wt and mutant mice, an oxidative burst response and the release of neutrophil extracellular traps (NET). This response of neutrophils, which is adapted to the large size of the L3 infective stages, likely directly contributes to the anti-parasitic strategies implemented by the host. Collectively, our results are demonstrating the contribution of neutrophils in early anti-filarial host responses through their capacity to undertake different anti-filarial strategies such as oxidative burst, degranulation and NETosis. Filariases are chronic debilitating diseases caused by parasitic nematodes affecting more than 150 million people worldwide. None of the current drugs are selective, neither able to eliminate the parasites nor to prevent new infections once the drug pressure has waned. Therefore, blocking the entry and the migration of the infective larvae (L3) could be an efficient way to control the infection. In the present study we investigated the early interaction between the host and the L. sigmodontis murine filariasis with a focus on the neutrophils in the innate host responses. We uncovered a key role of neutrophils in the control of infection provided by the CXCR4-gain-of-function mice (Cxcr4+/1013) that display a blood neutropenia as well as an accumulation of skin-infiltrating neutrophils. Overall, we reveal that in the early phase of filariasis, i.e. after L3 are delivered into the skin and before they reach their site for reproduction, neutrophils are critical elements of the host innate protective response arsenal. A better understanding of their indirect and/or effector role(s) may provide mechanistic clues to host factors implicated in parasitic nematode entry and potentially lead to the identification of new drug targets.
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Affiliation(s)
- Nicolas Pionnier
- Unité Molécules de Communication et Adaptation des Microorganismes (MCAM, UMR 7245), Sorbonne Universités, Muséum National d’Histoire Naturelle, CNRS; CP52, Paris, France
- UMR996—Inflammation, Chemokines and Immunopathology, Inserm, Univ Paris-Sud, Université Paris-Saclay, Clamart and Châtenay-Malabry, France
| | - Emilie Brotin
- UMR996—Inflammation, Chemokines and Immunopathology, Inserm, Univ Paris-Sud, Université Paris-Saclay, Clamart and Châtenay-Malabry, France
| | - Gregory Karadjian
- Unité Molécules de Communication et Adaptation des Microorganismes (MCAM, UMR 7245), Sorbonne Universités, Muséum National d’Histoire Naturelle, CNRS; CP52, Paris, France
| | - Patrice Hemon
- UMR996—Inflammation, Chemokines and Immunopathology, Inserm, Univ Paris-Sud, Université Paris-Saclay, Clamart and Châtenay-Malabry, France
- US31-UMS3679 -Plateforme PLAIMMO, Institut Paris-Saclay d’Innovation Thérapeutique (IPSIT), Inserm, CNRS, Univ Paris-Sud, Université Paris-Saclay, Clamart, France
| | - Françoise Gaudin-Nomé
- UMR996—Inflammation, Chemokines and Immunopathology, Inserm, Univ Paris-Sud, Université Paris-Saclay, Clamart and Châtenay-Malabry, France
- US31-UMS3679 -Plateforme PLAIMMO, Institut Paris-Saclay d’Innovation Thérapeutique (IPSIT), Inserm, CNRS, Univ Paris-Sud, Université Paris-Saclay, Clamart, France
| | - Nathaly Vallarino-Lhermitte
- Unité Molécules de Communication et Adaptation des Microorganismes (MCAM, UMR 7245), Sorbonne Universités, Muséum National d’Histoire Naturelle, CNRS; CP52, Paris, France
| | - Adélaïde Nieguitsila
- Unité Molécules de Communication et Adaptation des Microorganismes (MCAM, UMR 7245), Sorbonne Universités, Muséum National d’Histoire Naturelle, CNRS; CP52, Paris, France
| | - Frédéric Fercoq
- Unité Molécules de Communication et Adaptation des Microorganismes (MCAM, UMR 7245), Sorbonne Universités, Muséum National d’Histoire Naturelle, CNRS; CP52, Paris, France
| | - Marie-Laure Aknin
- UMR996—Inflammation, Chemokines and Immunopathology, Inserm, Univ Paris-Sud, Université Paris-Saclay, Clamart and Châtenay-Malabry, France
| | - Viviana Marin-Esteban
- UMR996—Inflammation, Chemokines and Immunopathology, Inserm, Univ Paris-Sud, Université Paris-Saclay, Clamart and Châtenay-Malabry, France
| | - Sylvie Chollet-Martin
- UMR996—Inflammation, Chemokines and Immunopathology, Inserm, Univ Paris-Sud, Université Paris-Saclay, Clamart and Châtenay-Malabry, France
| | - Géraldine Schlecht-Louf
- UMR996—Inflammation, Chemokines and Immunopathology, Inserm, Univ Paris-Sud, Université Paris-Saclay, Clamart and Châtenay-Malabry, France
| | - Françoise Bachelerie
- UMR996—Inflammation, Chemokines and Immunopathology, Inserm, Univ Paris-Sud, Université Paris-Saclay, Clamart and Châtenay-Malabry, France
- * E-mail: (FB); (CM)
| | - Coralie Martin
- Unité Molécules de Communication et Adaptation des Microorganismes (MCAM, UMR 7245), Sorbonne Universités, Muséum National d’Histoire Naturelle, CNRS; CP52, Paris, France
- * E-mail: (FB); (CM)
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De Veirman K, Van Ginderachter JA, Lub S, De Beule N, Thielemans K, Bautmans I, Oyajobi BO, De Bruyne E, Menu E, Lemaire M, Van Riet I, Vanderkerken K, Van Valckenborgh E. Multiple myeloma induces Mcl-1 expression and survival of myeloid-derived suppressor cells. Oncotarget 2016; 6:10532-47. [PMID: 25871384 PMCID: PMC4496373 DOI: 10.18632/oncotarget.3300] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Accepted: 02/08/2015] [Indexed: 01/02/2023] Open
Abstract
Myeloid-derived suppressor cells (MDSC) are contributing to an immunosuppressive environment by their ability to inhibit T cell activity and thereby promoting cancer progression. An important feature of the incurable plasma cell malignancy Multiple Myeloma (MM) is immune dysfunction. MDSC were previously identified to be present and active in MM patients, however little is known about the MDSC-inducing and -activating capacity of MM cells. In this study we investigated the effects of the tumor microenvironment on MDSC survival. During MM progression in the 5TMM mouse model, accumulation of MDSC in the bone marrow was observed in early stages of disease development, while circulating myeloid cells were increased at later stages of disease. Interestingly, in vivo MDSC targeting by anti-GR1 antibodies and 5-Fluorouracil resulted in a significant reduced tumor load in 5TMM-diseased mice. In vitro generation of MDSC was demonstrated by increased T cell immunosuppressive capacity and MDSC survival was observed in the presence of MM-conditioned medium. Finally, increased Mcl-1 expression was identified as underlying mechanism for MDSC survival. In conclusion, our data demonstrate that soluble factors from MM cells are able to generate MDSC through Mcl-1 upregulation and this cell population can be considered as a possible target in MM disease.
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Affiliation(s)
- Kim De Veirman
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Jo A Van Ginderachter
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium.,Myeloid Cell Immunology Laboratory, VIB, Brussels, Belgium
| | - Susanne Lub
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Nathan De Beule
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Kris Thielemans
- Department of Immunology-Physiology, Laboratory of Molecular and Cellular Therapy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Ivan Bautmans
- Gerontology & Frailty in Ageing Departments, Vrije Universiteit Brussel, Brussels, Belgium
| | - Babatunde O Oyajobi
- Department of Cellular & Structural Biology and Cancer Therapy and Research Center, The University of Texas Health Science Center at San Antonio, San Antonio, USA
| | - Elke De Bruyne
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Eline Menu
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Miguel Lemaire
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Ivan Van Riet
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Karin Vanderkerken
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Els Van Valckenborgh
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel (VUB), Brussels, Belgium
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Wu B, Capilato J, Pham MP, Walker J, Spur B, Rodriguez A, Perez LJ, Yin K. Lipoxin A4 augments host defense in sepsis and reduces Pseudomonas aeruginosa virulence through quorum sensing inhibition. FASEB J 2016; 30:2400-10. [PMID: 26965685 DOI: 10.1096/fj.201500029r] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 02/29/2016] [Indexed: 12/13/2022]
Abstract
Bacterial infections can quickly turn into sepsis, with its attendant clinical sequelae of inflammation, tissue injury, and organ failure. Paradoxically, sustained inflammation in sepsis may lead to immune suppression, because of which the host is unable to clear the existing infection. Use of agents that suppress the inflammatory response may accelerate host immune suppression, whereas use of traditional antibiotics does not significantly affect inflammation. In this study, we investigated whether lipoxin A4 (LXA4), a specialized, proresolution lipid mediator, could increase neutrophil phagocytic activity as well as reduce bacterial virulence. Using the mouse cecal ligation and puncture (CLP) model of sepsis, the administration of LXA4 (7 μg/kg i.v.) 1 h after surgery increased neutrophil phagocytic ability and Fcγ receptor I (CD64) expression. Ex vivo studies have confirmed that the direct addition of LXA4 to CLP neutrophils increased phagocytic ability but not CD64 expression. LXA4 did not affect neutrophils taken from control mice in which CD64 expression was minimal. Taken together with in vivo data, these results suggest that LXA4 directly augments CD64-mediated neutrophil phagocytic ability but does not directly increase neutrophil CD64 expression. Bacterial communication and virulence is regulated by quorum sensing inducers. In Pseudomonas aeruginosa, virulence is induced with release of various virulence factors, by N-3-oxododecanolyl homoserine lactone binding to the quorum sensing receptor, LasR. We show that LXA4 is an inhibitor of LasR in P. aeruginosa and that it decreases the release of pyocyanin exotoxin. These results suggest that LXA4 has the novel dual properties of increasing host defense and decreasing pathogen virulence by inhibiting quorum sensing.-Wu, B., Capilato, J., Pham, M. P., Walker, J., Spur, B., Rodriguez, A., Perez, L. J., Yin, K. Lipoxin A4 augments host defense in sepsis and reduces Pseudomonas aeruginosa virulence through quorum sensing inhibition.
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Affiliation(s)
- Benedict Wu
- Department of Cell Biology, Rowan University School of Osteopathic Medicine, Stratford, New Jersey, USA; and
| | - Joseph Capilato
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, New Jersey, USA
| | - Michelle P Pham
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, New Jersey, USA
| | - Jean Walker
- Department of Cell Biology, Rowan University School of Osteopathic Medicine, Stratford, New Jersey, USA; and
| | - Bernd Spur
- Department of Cell Biology, Rowan University School of Osteopathic Medicine, Stratford, New Jersey, USA; and
| | - Ana Rodriguez
- Department of Cell Biology, Rowan University School of Osteopathic Medicine, Stratford, New Jersey, USA; and
| | - Lark J Perez
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, New Jersey, USA
| | - Kingsley Yin
- Department of Cell Biology, Rowan University School of Osteopathic Medicine, Stratford, New Jersey, USA; and
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Jin HM, Kee SJ, Cho YN, Kang JH, Kim MJ, Jung HJ, Park KJ, Kim TJ, Lee SI, Choi H, Koh JT, Kim N, Park YW. Dysregulated osteoclastogenesis is related to natural killer T cell dysfunction in rheumatoid arthritis. Arthritis Rheumatol 2016; 67:2639-50. [PMID: 26097058 DOI: 10.1002/art.39244] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Accepted: 06/09/2015] [Indexed: 01/15/2023]
Abstract
OBJECTIVE To investigate the role played by natural killer T (NKT) cells in osteoclastogenesis and their effects on inflammatory bone destruction. METHODS Patients with rheumatoid arthritis (RA) (n = 25) and healthy controls (n = 12) were enrolled in this study. In vitro osteoclastogenesis experiments were performed using peripheral blood mononuclear cells (PBMCs) in the presence of macrophage colony-stimulating factor and RANKL. PBMCs were cultured in vitro with α-galactosylceramide (αGalCer), and proliferation indices of NKT cells were estimated by flow cytometry. In vivo effects of αGalCer-stimulated NKT cells on inflammation and bone destruction were determined in mice with collagen-induced arthritis. RESULTS In vitro osteoclastogenesis was found to be significantly inhibited by αGalCer in healthy controls but not in RA patients. Proliferative responses of NKT cells and STAT-1 phosphorylation in monocytes in response to αGalCer were impaired in RA patients. Notably, αGalCer-stimulated NKT cells inhibited osteoclastogenesis mainly via interferon-γ production in a cytokine-dependent manner (not by cell-cell contact) and down-regulated osteoclast-associated genes. Mice treated with αGalCer showed less severe arthritis and reduced bone destruction. Moreover, proinflammatory cytokine expression in arthritic joints was found to be reduced by αGalCer treatment. CONCLUSION This study primarily demonstrates that αGalCer-stimulated NKT cells have a regulatory effect on osteoclastogenesis and a protective effect against inflammatory bone destruction. However, it also shows that these effects of αGalCer are diminished in RA patients and that this is related to NKT cell dysfunction. These findings provide important information for those searching for novel therapeutic strategies to prevent bone destruction in RA.
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Affiliation(s)
- Hye-Mi Jin
- Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Seung-Jung Kee
- Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Young-Nan Cho
- Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Jeong-Hwa Kang
- Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Moon-Ju Kim
- Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Hyun-Ju Jung
- Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Ki-Jeong Park
- Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Tae-Jong Kim
- Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Sang-Il Lee
- Gyeongsang National University School of Medicine, Gyeongnam, Republic of Korea
| | - Hyuck Choi
- Chonnam National University School of Dentistry, Gwangju, Republic of Korea
| | - Jeong-Tae Koh
- Chonnam National University School of Dentistry, Gwangju, Republic of Korea
| | - Nacksung Kim
- Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Yong-Wook Park
- Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
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Moses K, Klein JC, Männ L, Klingberg A, Gunzer M, Brandau S. Survival of residual neutrophils and accelerated myelopoiesis limit the efficacy of antibody-mediated depletion of Ly-6G+ cells in tumor-bearing mice. J Leukoc Biol 2016; 99:811-23. [PMID: 26819319 DOI: 10.1189/jlb.1hi0715-289r] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Accepted: 01/04/2016] [Indexed: 01/03/2023] Open
Abstract
Expansion of Ly-6G(+) myeloid cells has been reported in most murine cancer models. However, divergent findings exist regarding the role and effect of these cells on host immunity and tumor progression. Antibody-mediated depletion of Ly-6G(+) cells is a common technique to assess the in vivo relevance of these cells. Interpretation of results crucially depends on the efficacy and course of depletion. We established murine head and neck cancer models and analyzed the efficacy of antibody-mediated depletion by flow cytometry, conventional histology, and intravital imaging with a novel Ly-6G-transgenic mouse model. The first phase of depletion was characterized by effective elimination of Ly-6G(+) cells from the peripheral blood. Nevertheless, viable, resistant cells were found to reside in the tumor tissue and spleen. This peripheral depletion phase was associated with high systemic levels of granulocyte colony-stimulating factor and KC and enhanced splenic production of Ly-6G(+) cells. Even under sustained treatment with either αGr-1 or αLy-6G antibodies, peripheral blood depletion ended after approximately 1 wk and was followed by reappearance of immature Ly-6G(+) cells with an immunoregulatory phenotype. Reappearance of these depletion-resistant immature cells was enhanced in tumor-bearing, compared with naïve, control mice. Collectively, our data suggest that depletion of Ly-6G(+) myeloid cells in tumor-bearing mice is counteracted by the persistence of intratumoral cells, enhanced extramedullary granulopoiesis, and accelerated reappearance of immature cells. Hence, extensive monitoring of in vivo kinetics and tissue distribution of Ly-6G(+) cells is required in depletion studies.
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Affiliation(s)
- Katrin Moses
- Department of Otorhinolaryngology, University Hospital Essen, University Duisburg-Essen, Essen, Germany; and
| | - Johanna C Klein
- Department of Otorhinolaryngology, University Hospital Essen, University Duisburg-Essen, Essen, Germany; and
| | - Linda Männ
- Institute for Experimental Immunology and Imaging, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Anika Klingberg
- Institute for Experimental Immunology and Imaging, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Matthias Gunzer
- Institute for Experimental Immunology and Imaging, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Sven Brandau
- Department of Otorhinolaryngology, University Hospital Essen, University Duisburg-Essen, Essen, Germany; and
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Mori H, Soonsawad P, Schuetter L, Chen Q, Hubbard NE, Cardiff RD, Borowsky AD. Introduction of Zinc-salt Fixation for Effective Detection of Immune Cell-related Markers by Immunohistochemistry. Toxicol Pathol 2015; 43:883-9. [PMID: 26157038 DOI: 10.1177/0192623315587593] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Tissue localization of immune cells is critical to the study of disease processes in mouse models of human diseases. However, immunohistochemistry (IHC) for immune cell phenotyping in mouse tissue sections presents specific technical challenges. For example, CD4 and CD8 have been difficult to detect using IHC on formalin-fixed and paraffin-embedded mouse tissue, prompting alternative methods. We investigated the use of formalin-free zinc-salt fixation (ZN) and optimized IHC protocols for detecting a panel of immune cell-related markers (CD3, CD4, CD8, Foxp3, B220, F4/80, CD68, and major histocompatibility complex [MHC] class-I, MHC class-II, and Gr-1). The IHC results for these markers were compared on mouse spleen tissue treated with neutral buffered formalin (NBF) or ZN with or ZN without antigen retrieval (AR). Whereas CD4 and CD8 were not detected in NBF-treated tissue, all markers were detected in ZN-treated tissue without AR. Thus, the use of ZN treatment for IHC staining can be a good tool for studying immunoreactive lesions in tissues.
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Affiliation(s)
- Hidetoshi Mori
- Center of Comparative Medicine, University of California, Davis, California, USA
| | - Pan Soonsawad
- Center of Comparative Medicine, University of California, Davis, California, USA
| | - Louis Schuetter
- Center of Comparative Medicine, University of California, Davis, California, USA
| | - Qian Chen
- Center of Comparative Medicine, University of California, Davis, California, USA
| | - Neil E Hubbard
- Center of Comparative Medicine, University of California, Davis, California, USA
| | - Robert D Cardiff
- Center of Comparative Medicine, University of California, Davis, California, USA Department of Pathology and Laboratory Medicine, School of Medicine, University of California, Davis, California, USA
| | - Alexander D Borowsky
- Center of Comparative Medicine, University of California, Davis, California, USA Department of Pathology and Laboratory Medicine, School of Medicine, University of California, Davis, California, USA
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Bucher K, Schmitt F, Autenrieth SE, Dillmann I, Nürnberg B, Schenke-Layland K, Beer-Hammer S. Fluorescent Ly6G antibodies determine macrophage phagocytosis of neutrophils and alter the retrieval of neutrophils in mice. J Leukoc Biol 2015; 98:365-72. [PMID: 26019296 DOI: 10.1189/jlb.1ab1014-488rr] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Accepted: 05/05/2015] [Indexed: 12/30/2022] Open
Abstract
Fluorescently labeled Ly6G antibodies enable the tracking of neutrophils in mice, whereas purified anti-Ly6G rapidly depletes neutrophils from the circulation. The mechanisms underlying neutrophil depletion are still under debate. Here, we examined how identical Ly6G antibodies coupled to different fluorochromes affect neutrophil fate in vivo. BM cells stained with Ly6G antibodies were injected into mice. The number of retrieved anti-Ly6G-FITC(+) cells was reduced significantly in comparison with anti-Ly6G-APC(+) or anti-Ly6G-PE(+) cells. Flow cytometry and multispectral imaging flow cytometry analyses revealed that anti-Ly6G-FITC(+) neutrophils were preferentially phagocytosed by BMMs in vitro and by splenic, hepatic, and BM macrophages in vivo. Direct antibody injection of anti-Ly6G-FITC but not anti-Ly6G-PE depleted neutrophils to the same degree as purified anti-Ly6G, indicating that the FITC-coupled antibody eliminates neutrophils by a similar mechanism as the uncoupled antibody. With the use of a protein G-binding assay, we demonstrated that APC and PE but not FITC coupling inhibited access to interaction sites on the anti-Ly6G antibody. We conclude the following: 1) that neutrophil phagocytosis by macrophages is a central mechanism in anti-Ly6G-induced neutrophil depletion and 2) that fluorochrome-coupling can affect functional properties of anti-Ly6G antibodies, thereby modifying macrophage uptake of Ly6G-labeled neutrophils and neutrophil retrieval following adoptive cell transfer or injection of fluorescent anti-Ly6G.
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Affiliation(s)
- Kirsten Bucher
- *Department of Pharmacology and Experimental Therapy, Institute of Experimental and Clinical Pharmacology and Toxicology, and University Women's Hospital, Eberhard-Karls-University Tübingen, Germany; Department of Hematology, Oncology, Immunology, Rheumatology and Pulmology, University Hospital Tübingen, Germany; Department of Cell and Tissue Engineering, Fraunhofer Institute for Interfacial Engineering and Biotechnology, Stuttgart, Germany; and Department of Medicine/Cardiology, Cardiovascular Research Laboratories, David Geffen School of Medicine at University of California Los Angeles, California, USA
| | - Fee Schmitt
- *Department of Pharmacology and Experimental Therapy, Institute of Experimental and Clinical Pharmacology and Toxicology, and University Women's Hospital, Eberhard-Karls-University Tübingen, Germany; Department of Hematology, Oncology, Immunology, Rheumatology and Pulmology, University Hospital Tübingen, Germany; Department of Cell and Tissue Engineering, Fraunhofer Institute for Interfacial Engineering and Biotechnology, Stuttgart, Germany; and Department of Medicine/Cardiology, Cardiovascular Research Laboratories, David Geffen School of Medicine at University of California Los Angeles, California, USA
| | - Stella E Autenrieth
- *Department of Pharmacology and Experimental Therapy, Institute of Experimental and Clinical Pharmacology and Toxicology, and University Women's Hospital, Eberhard-Karls-University Tübingen, Germany; Department of Hematology, Oncology, Immunology, Rheumatology and Pulmology, University Hospital Tübingen, Germany; Department of Cell and Tissue Engineering, Fraunhofer Institute for Interfacial Engineering and Biotechnology, Stuttgart, Germany; and Department of Medicine/Cardiology, Cardiovascular Research Laboratories, David Geffen School of Medicine at University of California Los Angeles, California, USA
| | - Inken Dillmann
- *Department of Pharmacology and Experimental Therapy, Institute of Experimental and Clinical Pharmacology and Toxicology, and University Women's Hospital, Eberhard-Karls-University Tübingen, Germany; Department of Hematology, Oncology, Immunology, Rheumatology and Pulmology, University Hospital Tübingen, Germany; Department of Cell and Tissue Engineering, Fraunhofer Institute for Interfacial Engineering and Biotechnology, Stuttgart, Germany; and Department of Medicine/Cardiology, Cardiovascular Research Laboratories, David Geffen School of Medicine at University of California Los Angeles, California, USA
| | - Bernd Nürnberg
- *Department of Pharmacology and Experimental Therapy, Institute of Experimental and Clinical Pharmacology and Toxicology, and University Women's Hospital, Eberhard-Karls-University Tübingen, Germany; Department of Hematology, Oncology, Immunology, Rheumatology and Pulmology, University Hospital Tübingen, Germany; Department of Cell and Tissue Engineering, Fraunhofer Institute for Interfacial Engineering and Biotechnology, Stuttgart, Germany; and Department of Medicine/Cardiology, Cardiovascular Research Laboratories, David Geffen School of Medicine at University of California Los Angeles, California, USA
| | - Katja Schenke-Layland
- *Department of Pharmacology and Experimental Therapy, Institute of Experimental and Clinical Pharmacology and Toxicology, and University Women's Hospital, Eberhard-Karls-University Tübingen, Germany; Department of Hematology, Oncology, Immunology, Rheumatology and Pulmology, University Hospital Tübingen, Germany; Department of Cell and Tissue Engineering, Fraunhofer Institute for Interfacial Engineering and Biotechnology, Stuttgart, Germany; and Department of Medicine/Cardiology, Cardiovascular Research Laboratories, David Geffen School of Medicine at University of California Los Angeles, California, USA
| | - Sandra Beer-Hammer
- *Department of Pharmacology and Experimental Therapy, Institute of Experimental and Clinical Pharmacology and Toxicology, and University Women's Hospital, Eberhard-Karls-University Tübingen, Germany; Department of Hematology, Oncology, Immunology, Rheumatology and Pulmology, University Hospital Tübingen, Germany; Department of Cell and Tissue Engineering, Fraunhofer Institute for Interfacial Engineering and Biotechnology, Stuttgart, Germany; and Department of Medicine/Cardiology, Cardiovascular Research Laboratories, David Geffen School of Medicine at University of California Los Angeles, California, USA
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Clements DR, Sterea AM, Kim Y, Helson E, Dean CA, Nunokawa A, Coyle KM, Sharif T, Marcato P, Gujar SA, Lee PWK. Newly recruited CD11b+, GR-1+, Ly6C(high) myeloid cells augment tumor-associated immunosuppression immediately following the therapeutic administration of oncolytic reovirus. THE JOURNAL OF IMMUNOLOGY 2015; 194:4397-412. [PMID: 25825443 DOI: 10.4049/jimmunol.1402132] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Accepted: 03/04/2015] [Indexed: 12/31/2022]
Abstract
Tumor-associated immunosuppression aids cancer cells to escape immune-mediated attack and subsequent elimination. Recently, however, many oncolytic viruses, including reovirus, have been reported to overturn such immunosuppression and promote the development of a clinically desired antitumor immunity, which is known to promote favorable patient outcomes. Contrary to this existing paradigm, in this article we demonstrate that reovirus augments tumor-associated immunosuppression immediately following its therapeutic administration. Our data show that reovirus induces preferential differentiation of highly suppressive CD11b(+), Gr-1(+), Ly6C(high) myeloid cells from bone marrow hematopoietic progenitor cells. Furthermore, reovirus administration in tumor-bearing hosts drives time-dependent recruitment of CD11b(+), Gr-1(+), Ly6C(high) myeloid cells in the tumor milieu, which is further supported by virus-induced increased expression of numerous immune factors involved in myeloid-derived suppressor cell survival and trafficking. Most importantly, CD11b(+), Gr-1(+), Ly6C(high) myeloid cells specifically potentiate the suppression of T cell proliferation and are associated with the absence of IFN-γ response in the tumor microenvironment early during oncotherapy. Considering that the qualitative traits of a specific antitumor immunity are largely dictated by the immunological events that precede its development, our findings are of critical importance and must be considered while devising complementary interventions aimed at promoting the optimum efficacy of oncolytic virus-based anticancer immunotherapies.
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Affiliation(s)
- Derek R Clements
- Department of Pathology, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4R2
| | - Andra M Sterea
- Department of Biology, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4R2
| | - Youra Kim
- Department of Pathology, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4R2
| | - Erin Helson
- Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4R2; and
| | - Cheryl A Dean
- Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4R2; and
| | - Anna Nunokawa
- Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4R2; and
| | - Krysta Mila Coyle
- Department of Pathology, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4R2
| | - Tanveer Sharif
- Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4R2; and
| | - Paola Marcato
- Department of Pathology, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4R2
| | - Shashi A Gujar
- Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4R2; and Strategy and Organizational Performance, Izaak Walton Killiam Health Centre, Halifax, Nova Scotia, Canada B3K 6R8
| | - Patrick W K Lee
- Department of Pathology, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4R2; Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4R2; and
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36
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Catchup: a mouse model for imaging-based tracking and modulation of neutrophil granulocytes. Nat Methods 2015; 12:445-52. [DOI: 10.1038/nmeth.3322] [Citation(s) in RCA: 149] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2014] [Accepted: 01/19/2015] [Indexed: 12/18/2022]
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Draghiciu O, Nijman HW, Hoogeboom BN, Meijerhof T, Daemen T. Sunitinib depletes myeloid-derived suppressor cells and synergizes with a cancer vaccine to enhance antigen-specific immune responses and tumor eradication. Oncoimmunology 2015; 4:e989764. [PMID: 25949902 PMCID: PMC4404834 DOI: 10.4161/2162402x.2014.989764] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Accepted: 11/14/2014] [Indexed: 01/25/2023] Open
Abstract
The high efficacy of therapeutic cancer vaccines in preclinical studies has yet to be fully achieved in clinical trials. Tumor immune suppression is a critical factor that hampers the desired antitumor effect. Here, we analyzed the combined effect of a cancer vaccine and the receptor tyrosine kinase inhibitor sunitinib. Sunitinib was administered intraperitoneally, alone or in combination with intramuscular immunization using a viral vector based cancer vaccine composed of Semliki Forest virus replicon particles and encoding the oncoproteins E6 and E7 (SFVeE6,7) of human papilloma virus (HPV). We first demonstrated that treatment of tumor-bearing mice with sunitinib alone dose-dependently depleted myeloid-derived suppressor cells (MDSCs) in the tumor, spleen and in circulation. Concomitantly, the number of CD8+ T cells increased 2-fold and, on the basis of CD69 expression, their activation status was greatly enhanced. The intrinsic immunosuppressive activity of residual MDSCs after sunitinib treatment was not changed in a dose-dependent fashion. We next combined sunitinib treatment with SFVeE6,7 immunization. This combined treatment resulted in a 1.5- and 3-fold increase of E7-specific cytotoxic T lymphocytes (CTLs) present within the circulation and tumor, respectively, as compared to immunization only. The ratio of E7-specific CTLs to MDSCs in blood thereby increased 10- to 20-fold and in tumors up to 12.5-fold. As a result, the combined treatment strongly enhanced the antitumor effect of the cancer vaccine. This study demonstrates that sunitinib creates a favorable microenvironment depleted of MDSCs and acts synergistically with a cancer vaccine resulting in enhanced levels of active tumor-antigen specific CTLs, thus changing the balance in favor of antitumor immunity.
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Key Words
- ARG1, arginase-1
- CTL, cytotoxic T lymphocyte
- DC, dendritic cell
- Flt3, Fms-like tyrosine kinase 3
- HPV, human papilloma virus
- MDSC, myeloid-derived suppressor cell
- PBMC, peripheral blood mononuclear cell
- Semliki Forest virus
- TGFβ, transforming growth factor β
- Treg, regulatory T cell
- VEGF, vascular endothelial growth factor receptor.
- cancer vaccine
- iNOS, nitric oxide synthase
- mRCC, metastatic renal cell carcinoma
- myeloid-derived suppressor cells
- rSFV, recombinant Semliki forest virus
- sunitinib
- suppressive factors
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Affiliation(s)
- Oana Draghiciu
- Department of Medical Microbiology, Tumor Virology and Cancer Immunotherapy; University of Groningen; University Medical Center Groningen ; Groningen, the Netherlands
| | - Hans W Nijman
- Department of Gynecology; University of Groningen; University Medical Center Groningen ; Groningen, the Netherlands
| | - Baukje Nynke Hoogeboom
- Department of Medical Microbiology, Tumor Virology and Cancer Immunotherapy; University of Groningen; University Medical Center Groningen ; Groningen, the Netherlands
| | - Tjarko Meijerhof
- Department of Medical Microbiology, Tumor Virology and Cancer Immunotherapy; University of Groningen; University Medical Center Groningen ; Groningen, the Netherlands
| | - Toos Daemen
- Department of Medical Microbiology, Tumor Virology and Cancer Immunotherapy; University of Groningen; University Medical Center Groningen ; Groningen, the Netherlands
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Tebartz C, Horst SA, Sparwasser T, Huehn J, Beineke A, Peters G, Medina E. A major role for myeloid-derived suppressor cells and a minor role for regulatory T cells in immunosuppression during Staphylococcus aureus infection. THE JOURNAL OF IMMUNOLOGY 2014; 194:1100-11. [PMID: 25548227 DOI: 10.4049/jimmunol.1400196] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Staphylococcus aureus can cause difficult-to-treat chronic infections. We recently reported that S. aureus chronic infection was associated with a profound inhibition of T cell responses. In this study, we investigated the mechanisms responsible for the suppression of T cell responses during chronic S. aureus infection. Using in vitro coculture systems, as well as in vivo adoptive transfer of CFSE-labeled OT-II cells, we demonstrated the presence of immunosuppressive mechanisms in splenocytes of S. aureus-infected mice that inhibited the response of OT-II cells to cognate antigenic stimulation. Immunosuppression was IL-10/TGF-β independent but required cell-cell proximity. Using DEREG and Foxp3(gfp) mice, we demonstrated that CD4(+)CD25(+)Foxp3(+) regulatory T cells contributed, but only to a minor degree, to bystander immunosuppression. Neither regulatory B cells nor tolerogenic dendritic cells contributed to immunosuppression. Instead, we found a significant expansion of granulocytic (CD11b(+)Ly6G(+)Ly6C(low)) and monocytic (CD11b(+)Ly6G(-)Ly6C(high)) myeloid-derived suppressor cells (MDSC) in chronically infected mice, which exerted a strong immunosuppressive effect on T cell responses. Splenocytes of S. aureus-infected mice lost most of their suppressive activity after the in vivo depletion of MDSC by treatment with gemcitabine. Furthermore, a robust negative correlation was observed between the degree of T cell inhibition and the number of MDSC. An increase in the numbers of MDSC in S. aureus-infected mice by adoptive transfer caused a significant exacerbation of infection. In summary, our results indicate that expansion of MDSC and, to a minor degree, of regulatory T cells in S. aureus-infected mice may create an immunosuppressive environment that sustains chronic infection.
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Affiliation(s)
- Christina Tebartz
- Infection Immunology Research Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany
| | - Sarah Anita Horst
- Infection Immunology Research Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany
| | - Tim Sparwasser
- Institute of Infection Immunology, Twincore, Centre for Experimental and Clinical Infection Research, 30625 Hannover, Germany
| | - Jochen Huehn
- Department of Experimental Immunology, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany
| | - Andreas Beineke
- Department of Pathology, University of Veterinary Medicine Hannover, 30559 Hannover, Germany; and
| | - Georg Peters
- Institute of Medical Microbiology, University Hospital of 48149 Münster, Münster, Germany
| | - Eva Medina
- Infection Immunology Research Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany;
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De Veirman K, Van Valckenborgh E, Lahmar Q, Geeraerts X, De Bruyne E, Menu E, Van Riet I, Vanderkerken K, Van Ginderachter JA. Myeloid-derived suppressor cells as therapeutic target in hematological malignancies. Front Oncol 2014; 4:349. [PMID: 25538893 PMCID: PMC4258607 DOI: 10.3389/fonc.2014.00349] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Accepted: 11/23/2014] [Indexed: 12/29/2022] Open
Abstract
Myeloid-derived suppressor cells (MDSC) are a heterogeneous population of immature myeloid cells that accumulate during pathological conditions such as cancer and are associated with a poor clinical outcome. MDSC expansion hampers the host anti-tumor immune response by inhibition of T cell proliferation, cytokine secretion, and recruitment of regulatory T cells. In addition, MDSC exert non-immunological functions including the promotion of angiogenesis, tumor invasion, and metastasis. Recent years, MDSC are considered as a potential target in solid tumors and hematological malignancies to enhance the effects of currently used immune modulating agents. This review focuses on the characteristics, distribution, functions, cell–cell interactions, and targeting of MDSC in hematological malignancies including multiple myeloma, lymphoma, and leukemia.
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Affiliation(s)
- Kim De Veirman
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel , Brussels , Belgium
| | - Els Van Valckenborgh
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel , Brussels , Belgium
| | - Qods Lahmar
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel , Brussels , Belgium ; Laboratory of Myeloid Cell Immunology, VIB , Brussels , Belgium
| | - Xenia Geeraerts
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel , Brussels , Belgium ; Laboratory of Myeloid Cell Immunology, VIB , Brussels , Belgium
| | - Elke De Bruyne
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel , Brussels , Belgium
| | - Eline Menu
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel , Brussels , Belgium
| | - Ivan Van Riet
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel , Brussels , Belgium
| | - Karin Vanderkerken
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel , Brussels , Belgium
| | - Jo A Van Ginderachter
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel , Brussels , Belgium ; Laboratory of Myeloid Cell Immunology, VIB , Brussels , Belgium
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Kurkó J, Vida A, Ocskó T, Tryniszewska B, Rauch TA, Glant TT, Szekanecz Z, Mikecz K. Suppression of proteoglycan-induced autoimmune arthritis by myeloid-derived suppressor cells generated in vitro from murine bone marrow. PLoS One 2014; 9:e111815. [PMID: 25369029 PMCID: PMC4219784 DOI: 10.1371/journal.pone.0111815] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2014] [Accepted: 10/08/2014] [Indexed: 11/19/2022] Open
Abstract
Background Myeloid-derived suppressor cells (MDSCs) are innate immune cells capable of suppressing T-cell responses. We previously reported the presence of MDSCs with a granulocytic phenotype in the synovial fluid (SF) of mice with proteoglycan (PG)-induced arthritis (PGIA), a T cell-dependent autoimmune model of rheumatoid arthritis (RA). However, the limited amount of SF-MDSCs precluded investigations into their therapeutic potential. The goals of this study were to develop an in vitro method for generating MDSCs similar to those found in SF and to reveal the therapeutic effect of such cells in PGIA. Methods Murine bone marrow (BM) cells were cultured for 3 days in the presence of granulocyte macrophage colony-stimulating factor (GM-CSF), interleukin-6 (IL-6), and granulocyte colony-stimulating factor (G-CSF). The phenotype of cultured cells was analyzed using flow cytometry, microscopy, and biochemical methods. The suppressor activity of BM-MDSCs was tested upon co-culture with activated T cells. To investigate the therapeutic potential of BM-MDSCs, the cells were injected into SCID mice at the early stage of adoptively transferred PGIA, and their effects on the clinical course of arthritis and PG-specific immune responses were determined. Results BM cells cultured in the presence of GM-CSF, IL-6, and G-CSF became enriched in MDSC-like cells that showed greater phenotypic heterogeneity than MDSCs present in SF. BM-MDSCs profoundly inhibited both antigen-specific and polyclonal T-cell proliferation primarily via production of nitric oxide. Injection of BM-MDSCs into mice with PGIA ameliorated arthritis and reduced PG-specific T-cell responses and serum antibody levels. Conclusions Our in vitro enrichment strategy provides a SF-like, but controlled microenvironment for converting BM myeloid precursors into MDSCs that potently suppress both T-cell responses and the progression of arthritis in a mouse model of RA. Our results also suggest that enrichment of BM in MDSCs could improve the therapeutic efficacy of BM transplantation in RA.
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Affiliation(s)
- Júlia Kurkó
- Section of Molecular Medicine, Department of Orthopedic Surgery, Rush University Medical Center, Chicago, Illinois, United States of America
- Department of Rheumatology, University of Debrecen, Faculty of Medicine, Debrecen, Hungary
| | - András Vida
- Section of Molecular Medicine, Department of Orthopedic Surgery, Rush University Medical Center, Chicago, Illinois, United States of America
| | - Tímea Ocskó
- Section of Molecular Medicine, Department of Orthopedic Surgery, Rush University Medical Center, Chicago, Illinois, United States of America
| | - Beata Tryniszewska
- Section of Molecular Medicine, Department of Orthopedic Surgery, Rush University Medical Center, Chicago, Illinois, United States of America
| | - Tibor A. Rauch
- Section of Molecular Medicine, Department of Orthopedic Surgery, Rush University Medical Center, Chicago, Illinois, United States of America
| | - Tibor T. Glant
- Section of Molecular Medicine, Department of Orthopedic Surgery, Rush University Medical Center, Chicago, Illinois, United States of America
| | - Zoltán Szekanecz
- Department of Rheumatology, University of Debrecen, Faculty of Medicine, Debrecen, Hungary
| | - Katalin Mikecz
- Section of Molecular Medicine, Department of Orthopedic Surgery, Rush University Medical Center, Chicago, Illinois, United States of America
- * E-mail:
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Stromnes IM, Brockenbrough S, Izeradjene K, Carlson MA, Cuevas C, Simmons RM, Greenberg PD, Hingorani SR. Targeted depletion of an MDSC subset unmasks pancreatic ductal adenocarcinoma to adaptive immunity. Gut 2014; 63:1769-81. [PMID: 24555999 PMCID: PMC4340484 DOI: 10.1136/gutjnl-2013-306271] [Citation(s) in RCA: 246] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Pancreatic ductal adenocarcinoma (PDA) is characterised by a robust desmoplasia, including the notable accumulation of immunosuppressive cells that shield neoplastic cells from immune detection. Immune evasion may be further enhanced if the malignant cells fail to express high levels of antigens that are sufficiently immunogenic to engender an effector T cell response. OBJECTIVE To investigate the predominant subsets of immunosuppressive cancer-conditioned myeloid cells that chronicle and shape the progression of pancreas cancer. We show that selective depletion of one subset of myeloid-derived suppressor cells (MDSC) in an autochthonous, genetically engineered mouse model (GEMM) of PDA unmasks the ability of the adaptive immune response to engage and target tumour epithelial cells. METHODS A combination of in vivo and in vitro studies were performed employing a GEMM that faithfully recapitulates the cardinal features of human PDA. The predominant cancer-conditioned myeloid cell subpopulation was specifically targeted in vivo and the biological outcomes determined. RESULTS PDA orchestrates the induction of distinct subsets of cancer-associated myeloid cells through the production of factors known to influence myelopoiesis. These immature myeloid cells inhibit the proliferation and induce apoptosis of activated T cells. Targeted depletion of granulocytic MDSC (Gr-MDSC) in autochthonous PDA increases the intratumoral accumulation of activated CD8 T cells and apoptosis of tumour epithelial cells and also remodels the tumour stroma. CONCLUSIONS Neoplastic ductal cells of the pancreas induce distinct myeloid cell subsets that promote tumour cell survival and accumulation. Targeted depletion of a single myeloid subset, the Gr-MDSC, can unmask an endogenous T cell response, disclosing an unexpected latent immunity and invoking targeting of Gr-MDSC as a potential strategy to exploit for treating this highly lethal disease.
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Affiliation(s)
- Ingunn M. Stromnes
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109,Department of Immunology, University of Washington, Seattle, WA, 98195
| | - Scott Brockenbrough
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109
| | - Kamel Izeradjene
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109
| | - Markus A. Carlson
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109
| | - Carlos Cuevas
- Department of Radiology, University of Washington School of Medicine, Seattle, WA, 98195
| | - Randi M. Simmons
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109
| | - Philip D. Greenberg
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109,Department of Medicine, Division of Medical Oncology, University of Washington School of Medicine, Seattle, WA, 98195,Department of Immunology, University of Washington, Seattle, WA, 98195,Correspondence: Sunil R. Hingorani, MD, PhD, Fred Hutchinson Cancer Research Center, Mail Stop M5-C800, P.O. Box 19024, Seattle, WA 98109-1024, , Philip D. Greenberg, MD, Fred Hutchinson Cancer Research Center, Mail Stop D3-100, P.O. Box 19024, Seattle, WA 98109-1024,
| | - Sunil R. Hingorani
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109,Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109,Department of Medicine, Division of Medical Oncology, University of Washington School of Medicine, Seattle, WA, 98195,Correspondence: Sunil R. Hingorani, MD, PhD, Fred Hutchinson Cancer Research Center, Mail Stop M5-C800, P.O. Box 19024, Seattle, WA 98109-1024, , Philip D. Greenberg, MD, Fred Hutchinson Cancer Research Center, Mail Stop D3-100, P.O. Box 19024, Seattle, WA 98109-1024,
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42
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Schmid M, Zimara N, Wege AK, Ritter U. Myeloid-derived suppressor cell functionality and interaction withLeishmania majorparasites differ in C57BL/6 and BALB/c mice. Eur J Immunol 2014; 44:3295-306. [DOI: 10.1002/eji.201344335] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Revised: 06/27/2014] [Accepted: 08/13/2014] [Indexed: 01/20/2023]
Affiliation(s)
- Maximilian Schmid
- Institute of Immunology; University of Regensburg; Regensburg Germany
| | - Nicole Zimara
- Institute of Immunology; University of Regensburg; Regensburg Germany
| | - Anja Kathrin Wege
- Department of Gynecology and Obstetrics; University Medical Center Regensburg; Regensburg Germany
| | - Uwe Ritter
- Institute of Immunology; University of Regensburg; Regensburg Germany
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Shen J, Chen X, Wang Z, Zhang G, Chen W. Downregulation of CD40 expression contributes to the accumulation of myeloid-derived suppressor cells in gastric tumors. Oncol Lett 2014; 8:775-780. [PMID: 25009656 PMCID: PMC4081434 DOI: 10.3892/ol.2014.2174] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Accepted: 02/20/2014] [Indexed: 12/30/2022] Open
Abstract
An elevated number of myeloid-derived suppressor cells (MDSCs) in tumor-bearing hosts has been recognized as a crucial mediator of tumor progression due to the cells potent ability to suppress antitumor immunity. Cluster of differentiation (CD) 40, as a suppressive phenotype expressed in MDSCs, is essential for MDSC-mediated immune suppression and the expansion of T regulatory cells. However, whether CD40 exerts a direct effect on the accumulation of MDSCs remains unclear. In the present study, CD40 was observed to be highly expressed on the MDSCs obtained from mice bearing gastric tumors. Notably, a significant decrease in the level of CD40 expression was observed in addition to an increased number of MDSCs during tumor progression. Further analysis revealed that the MDSC levels were found to positively correlate with tumor progression and that CD40 expression levels inversely correlate with the accumulation of MDSCs. To confirm the potent correlation between CD40 expression and the accumulation of MDSCs, the apoptosis of the MDSCs was detected using agonistic anti-CD40 treatment. The results indicated that CD40 activation induces apoptosis in MDSCs and that the downregulation of CD40 expression may contribute to MDSC accumulation by facilitating MDSC resistance to apoptosis. Thus, these observations provide a novel mechanism to improve our understanding of the involvement of CD40 in MDSC accumulation during cancer development.
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Affiliation(s)
- Jin Shen
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Xiaojuan Chen
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Zhenxing Wang
- Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Guangbo Zhang
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China ; Key Laboratory of Medicine and Clinical Immunology of Jiangsu Province, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Weichang Chen
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China ; Key Laboratory of Medicine and Clinical Immunology of Jiangsu Province, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
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Shi M, Li M, Cui Y, Adachi Y, Ikehara S. Gr-1 Ab administered after bone marrow transplantation plus thymus transplantation suppresses tumor growth by depleting granulocytic myeloid-derived suppressor cells. PLoS One 2014; 9:e97908. [PMID: 24847950 PMCID: PMC4029790 DOI: 10.1371/journal.pone.0097908] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Accepted: 04/25/2014] [Indexed: 11/25/2022] Open
Abstract
It has been shown that allogeneic intra-bone marrow–bone marrow transplantation (IBM-BMT) plus thymus transplantation (TT) is effective in treating recipients with malignant tumors. Although TT increases the percentage of T cells in the early term after BMT, the myeloid-derived suppressor cells (MDSCs) are still the dominant population. We used the Gr-1 Ab to deplete the granulocytic MDSCs (G-MDSCs) in tumor-bearing mice that had received BMT+TT. Two weeks after the BMT, the mice injected with Gr-1 Ab showed smaller tumors than those in the control group. In addition, Gr-1 Ab significantly increased the percentages and numbers of CD4+ and CD8+ T cells, and decreased the percentages and numbers of MDSCs and G-MDSCs. No side effects of the Gr-1 Ab on recipient or donor thymus were observed. These findings indicate that Gr-1 Ab administered after BMT+TT may enhance the effectiveness of tumor suppression.
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Affiliation(s)
- Ming Shi
- Department of Stem Cell Disorders, Kansai Medical University, Hirakata, Osaka, Japan
- Department of Occupational and Environmental Health, School of Public Health, Guangdong Medical College, Dongguan, Guangdong, China
| | - Ming Li
- Department of Stem Cell Disorders, Kansai Medical University, Hirakata, Osaka, Japan
| | - Yunze Cui
- Department of Stem Cell Disorders, Kansai Medical University, Hirakata, Osaka, Japan
- JIMRO Co., Ltd., Takasaki, Gunma, Japan
| | - Yasushi Adachi
- Department of Stem Cell Disorders, Kansai Medical University, Hirakata, Osaka, Japan
- Division of Clinical Pathology, Toyooka Hospital, Toyooka, Hyogo, Japan
| | - Susumu Ikehara
- Department of Stem Cell Disorders, Kansai Medical University, Hirakata, Osaka, Japan
- * E-mail:
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Condamine T, Kumar V, Ramachandran IR, Youn JI, Celis E, Finnberg N, El-Deiry WS, Winograd R, Vonderheide RH, English NR, Knight SC, Yagita H, McCaffrey JC, Antonia S, Hockstein N, Witt R, Masters G, Bauer T, Gabrilovich DI. ER stress regulates myeloid-derived suppressor cell fate through TRAIL-R-mediated apoptosis. J Clin Invest 2014; 124:2626-39. [PMID: 24789911 DOI: 10.1172/jci74056] [Citation(s) in RCA: 284] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Myeloid-derived suppressor cells (MDSCs) dampen the immune response thorough inhibition of T cell activation and proliferation and often are expanded in pathological conditions. Here, we studied the fate of MDSCs in cancer. Unexpectedly, MDSCs had lower viability and a shorter half-life in tumor-bearing mice compared with neutrophils and monocytes. The reduction of MDSC viability was due to increased apoptosis, which was mediated by increased expression of TNF-related apoptosis-induced ligand receptors (TRAIL-Rs) in these cells. Targeting TRAIL-Rs in naive mice did not affect myeloid cell populations, but it dramatically reduced the presence of MDSCs and improved immune responses in tumor-bearing mice. Treatment of myeloid cells with proinflammatory cytokines did not affect TRAIL-R expression; however, induction of ER stress in myeloid cells recapitulated changes in TRAIL-R expression observed in tumor-bearing hosts. The ER stress response was detected in MDSCs isolated from cancer patients and tumor-bearing mice, but not in control neutrophils or monocytes, and blockade of ER stress abrogated tumor-associated changes in TRAIL-Rs. Together, these data indicate that MDSC pathophysiology is linked to ER stress, which shortens the lifespan of these cells in the periphery and promotes expansion in BM. Furthermore, TRAIL-Rs can be considered as potential targets for selectively inhibiting MDSCs.
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46
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Kidiyoor A, Schettini J, Besmer DM, Rego SL, Nath S, Curry JM, Roy LD, Dréau D, Mukherjee P. Pancreatic Cancer Cells Isolated from Muc1-Null Tumors Favor the Generation of a Mature Less Suppressive MDSC Population. Front Immunol 2014; 5:67. [PMID: 24605110 PMCID: PMC3932420 DOI: 10.3389/fimmu.2014.00067] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2013] [Accepted: 02/07/2014] [Indexed: 01/07/2023] Open
Abstract
Mucin 1 (MUC1) is a transmembrane mucin glycoprotein that is over-expressed and aberrantly glycosylated in >80% of human pancreatic ductal adenocarcinoma (PDA) and is associated with poor prognosis. To understand the role of MUC1 in PDA, we have recently developed two mouse models of spontaneous PDA, one that expresses full-length human MUC1 transgene (KCM mice) and one that is null for MUC1 (KCKO mice). We have previously reported that KCM mice express high levels of myeloid derived suppressor cells (MDSCs) in their tumors and develop highly aggressive PDA. To further understand the underlying mechanism for high MDSC levels in KCM-tumors, we generated primary cell lines from KCM and KCKO-tumors. In this study, we report that MDSCs derived using KCM cells express significantly higher levels of arginase 1 and inducible nitric oxide synthase (markers associated with immune suppression) and lower levels of CD115 (a marker associated with maturation of myeloid cells) as compared to KCKO-derived MDSCs. Functionally, KCM-derived MDSCs secrete significantly higher levels of urea and nitric oxide (NO) when co-cultured with normal splenic cells as compared to KCKO-derived MDSCs. Data indicates that KCM-derived MDSCs remain immature and are more suppressive as compared to KCKO-derived MDSCs. This was further corroborated in vivo where MDSCs isolated from KCM-tumor-bearing mice retained their immature state and were highly suppressive as compared to MDSCs derived from KCKO-tumor-bearing mice. Finally, we show that KCM cells secrete significantly higher levels of prostaglandin E2 (PGE2), a COX-2 metabolite and a known driver of suppressive MDSCs as compared to KCKO cells. Thus, inhibiting PGE2 with a specific COX-2 inhibitor reverses the immunosuppressive and immature phenotype of KCM-derived MDSCs. This is the first report that clearly suggests a functional role of pancreatic tumor-associated MUC1 in the development of functional MDSCs.
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Affiliation(s)
- Amritha Kidiyoor
- Department of Biology, University of North Carolina at Charlotte , Charlotte, NC , USA
| | - Jorge Schettini
- Department of Biology, University of North Carolina at Charlotte , Charlotte, NC , USA
| | - Dahlia Marie Besmer
- Department of Biology, University of North Carolina at Charlotte , Charlotte, NC , USA
| | - Stephen Lee Rego
- Department of Biology, University of North Carolina at Charlotte , Charlotte, NC , USA
| | - Sritama Nath
- Department of Biology, University of North Carolina at Charlotte , Charlotte, NC , USA
| | - Jennifer Marie Curry
- Department of Biology, University of North Carolina at Charlotte , Charlotte, NC , USA
| | - Lopamudra Das Roy
- Department of Biology, University of North Carolina at Charlotte , Charlotte, NC , USA
| | - Didier Dréau
- Department of Biology, University of North Carolina at Charlotte , Charlotte, NC , USA
| | - Pinku Mukherjee
- Department of Biology, University of North Carolina at Charlotte , Charlotte, NC , USA
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47
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Huber R, Pietsch D, Günther J, Welz B, Vogt N, Brand K. Regulation of monocyte differentiation by specific signaling modules and associated transcription factor networks. Cell Mol Life Sci 2014; 71:63-92. [PMID: 23525665 PMCID: PMC11113479 DOI: 10.1007/s00018-013-1322-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Revised: 02/12/2013] [Accepted: 03/07/2013] [Indexed: 12/26/2022]
Abstract
Monocyte/macrophages are important players in orchestrating the immune response as well as connecting innate and adaptive immunity. Myelopoiesis and monopoiesis are characterized by the interplay between expansion of stem/progenitor cells and progression towards further developed (myelo)monocytic phenotypes. In response to a variety of differentiation-inducing stimuli, various prominent signaling pathways are activated. Subsequently, specific transcription factors are induced, regulating cell proliferation and maturation. This review article focuses on the integration of signaling modules and transcriptional networks involved in the determination of monocytic differentiation.
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Affiliation(s)
- René Huber
- Institute of Clinical Chemistry, Hannover Medical School, Carl-Neuberg-Str.1, 30625, Hannover, Germany,
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48
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Hasan SA, Eksteen B, Reid D, Paine HV, Alansary A, Johannson K, Gwozd C, Goring KAR, Vo T, Proud D, Kelly MM. Role of IL-17A and neutrophils in fibrosis in experimental hypersensitivity pneumonitis. J Allergy Clin Immunol 2013; 131:1663-73. [DOI: 10.1016/j.jaci.2013.01.015] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2012] [Revised: 11/15/2012] [Accepted: 01/15/2013] [Indexed: 11/25/2022]
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49
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Norris BA, Uebelhoer LS, Nakaya HI, Price AA, Grakoui A, Pulendran B. Chronic but not acute virus infection induces sustained expansion of myeloid suppressor cell numbers that inhibit viral-specific T cell immunity. Immunity 2013; 38:309-21. [PMID: 23438822 DOI: 10.1016/j.immuni.2012.10.022] [Citation(s) in RCA: 101] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Accepted: 10/26/2012] [Indexed: 12/24/2022]
Abstract
Resolution of acute and chronic viral infections requires activation of innate cells to initiate and maintain adaptive immune responses. Here we report that infection with acute Armstrong (ARM) or chronic Clone 13 (C13) strains of lymphocytic choriomeningitis virus (LCMV) led to two distinct phases of innate immune response. During the first 72 hr of infection, dendritic cells upregulated activation markers and stimulated antiviral CD8(+) T cells, independent of viral strain. Seven days after infection, there was an increase in Ly6C(hi) monocytic and Gr-1(hi) neutrophilic cells in lymphoid organs and blood. This expansion in cell numbers was enhanced and sustained in C13 infection, whereas it occurred only transiently with ARM infection. These cells resembled myeloid-derived suppressor cells and potently suppressed T cell proliferation. The reduction of monocytic cells in Ccr2(-/-) mice or after Gr-1 antibody depletion enhanced antiviral T cell function. Thus, innate cells have an important immunomodulatory role throughout chronic infection.
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Affiliation(s)
- Brian A Norris
- Vaccine Research Center, Emory University, Atlanta, GA 30329, USA
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50
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Lee PY, Wang JX, Parisini E, Dascher CC, Nigrovic PA. Ly6 family proteins in neutrophil biology. J Leukoc Biol 2013; 94:585-94. [PMID: 23543767 DOI: 10.1189/jlb.0113014] [Citation(s) in RCA: 205] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The murine Ly6 complex was identified 35 years ago using antisera to lymphocytes. With advances in mAb development, molecular cloning, and genome sequencing, >20 structurally related genes have been identified within this complex on chromosome 15. All members of the Ly6 family and their human homologues share the highly conserved LU domain and most also possess a GPI anchor. Interestingly, many Ly6 proteins are expressed in a lineage-specific fashion, and their expression often correlates with stages of differentiation. As a result, Ly6 proteins are frequently used as surface markers for leukocyte subset identification and targets for antibody-mediated depletion. Murine neutrophils display prominent surface expression of several Ly6 proteins, including Ly6B, Ly6C, and Ly6G. Although the physiology of most Ly6 proteins is not well understood, a role in neutrophil functions, such as migration, is recognized increasingly. In this review, we will provide an overview of the Ly6 complex and discuss, in detail, the specific Ly6 proteins implicated in neutrophil biology.
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Affiliation(s)
- Pui Y Lee
- 1.Immunology, and Allergy, Brigham and Women's Hospital, One Jimmy Fund Way, Smith 516c, Boston, MA 02115, USA.
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