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Mangelinck A, Dubuisson A, Becht E, Dromaint-Catesson S, Fasquel M, Provost N, Walas D, Darville H, Galizzi JP, Lefebvre C, Blanc V, Lombardi V. Characterization of CD4 + and CD8 + T cells responses in the mixed lymphocyte reaction by flow cytometry and single cell RNA sequencing. Front Immunol 2024; 14:1320481. [PMID: 38283342 PMCID: PMC10820991 DOI: 10.3389/fimmu.2023.1320481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 12/22/2023] [Indexed: 01/30/2024] Open
Abstract
Background The Mixed Lymphocyte Reaction (MLR) consists in the allogeneic co-culture of monocytes derived dendritic cells (MoDCs) with T cells from another donor. This in vitro assay is largely used for the assessment of immunotherapy compounds. Nevertheless, the phenotypic changes associated with lymphocyte responsiveness under MLR have never been thoroughly evaluated. Methods Here, we used multiplex cytokine and chemokine assays, multiparametric flow cytometry and single cell RNA sequencing to deeply characterize T cells activation and function in the context of CD4+- and CD8+-specific MLR kinetics. Results We showed that CD4+ and CD8+ T cells in MLR share common classical markers of response such as polyfunctionality, increased proliferation and CD25 expression but differ in their kinetics and amplitude of activation as well as their patterns of cytokines secretion and immune checkpoints expression. The analysis of immunoreactive Ki-67+CD25+ T cells identified PBK, LRR1 and MYO1G as new potential markers of MLR response. Using cell-cell communication network inference and pathway analysis on single cell RNA sequencing data, we also highlighted key components of the immunological synapse occurring between T cells and the stimulatory MoDCs together with downstream signaling pathways involved in CD4+ and CD8+ T cells activation. Conclusion These results provide a deep understanding of the kinetics of the MLR assay for CD4+ or CD8+ T cells and may allow to better characterize compounds impacting MLR and eventually identify new strategies for immunotherapy in cancer.
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Liu PJ, Yang TT, Fan ZX, Yuan GB, Ma L, Wang ZY, Lu JF, Yuan BY, Zou WL, Zhang XH, Liu GZ. Characterization of antigen-specific CD8+ memory T cell subsets in peripheral blood of patients with multiple sclerosis. Front Immunol 2023; 14:1110672. [PMID: 37215118 PMCID: PMC10192904 DOI: 10.3389/fimmu.2023.1110672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 04/24/2023] [Indexed: 05/24/2023] Open
Abstract
Background Increasing evidence indicates the importance of CD8+ T cells in autoimmune attack against CNS myelin and axon in multiple sclerosis (MS). Previous research has also discovered that myelin-reactive T cells have memory phenotype functions in MS patients. However, limited evidence is available regarding the role of CD8+ memory T cell subsets in MS. This study aimed to explore potential antigen-specific memory T cell-related biomarkers and their association with disease activity. Methods The myelin oligodendrocyte glycoprotein (MOG)-specific CD8+ memory T cell subsets and their related cytokines (perforin, granzyme B, interferon (IFN)-γ) and negative co-stimulatory molecules (programmed cell death protein 1 (PD-1), T- cell Ig and mucin domain 3 (Tim-3)) were analyzed by flow cytometry and real-time PCR in peripheral blood of patients with relapsing-remitting MS. Results We found that MS patients had elevated frequency of MOG-specific CD8+ T cells, MOG-specific central memory T cells (TCM), MOG-specific CD8+ effector memory T cells (TEM), and MOG-specific CD8+ terminally differentiated cells (TEMRA); elevated granzyme B expression on MOG-specific CD8+ TCM; and, on MOG-specific CD8+ TEM, elevated granzyme B and reduced PD-1 expression. The Expanded Disability Status Scale score (EDSS) in MS patients was correlated with the frequency of MOG-specific CD8+ TCM, granzyme B expression in CD8+ TCM, and granzyme B and perforin expression on CD8+ TEM, but with reduced PD-1 expression on CD8+ TEM. Conclusion The dysregulation of antigen-specific CD8+ memory T cell subsets, along with the abnormal expression of their related cytokines and negative co-stimulatory molecules, may reflect an excessive or persistent inflammatory response induced during early stages of the illness. Our findings strongly suggest positive regulatory roles for memory T cell populations in MS pathogenesis, probably via molecular mimicry to trigger or promote abnormal peripheral immune responses. Furthermore, downregulated PD-1 expression may stimulate a positive feedback effect, promoting MS-related inflammatory responses via the interaction of PD-1 ligands. Therefore, these parameters are potential serological biomarkers for predicting disease development in MS.
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Affiliation(s)
- Pen-Ju Liu
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Ting-Ting Yang
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Ze-Xin Fan
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Guo-Bin Yuan
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Lin Ma
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Ze-Yi Wang
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Jian-Feng Lu
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Bo-Yi Yuan
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Wen-Long Zou
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Xing-Hu Zhang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Guang-Zhi Liu
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
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Hou Y, Zak J, Shi Y, Pratumchai I, Dinner B, Wang W, Qin K, Weber E, Teijaro JR, Wu P. Transient EZH2 suppression by Tazemetostat during in vitro expansion maintains T cell stemness and improves adoptive T cell therapy. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.07.527459. [PMID: 36798389 PMCID: PMC9934551 DOI: 10.1101/2023.02.07.527459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
The histone methyltransferase enhancer of zeste homolog 2 (EZH2)-mediated epigenetic regulation of T cell differentiation in acute infection has been extensively investigated. However, the role of EZH2 in T cell exhaustion remains under-explored. Here, using in vitro exhaustion models, we demonstrated that transient inhibition of EZH2 in T cells before the phenotypic onset of exhaustion with a clinically approved inhibitor, Tazemetastat, delayed their dysfunctional progression and maintained T cell stemness and polyfunctionality while having no negative impact on cell proliferation. Tazemetestat induced T cell epigenetic reprogramming and increased the expression of the self-renewing T cell transcription factor TCF1 by reducing its promoter H3K27 methylation preferentially in rapidly dividing T cells. In a murine melanoma model, T cells pre-treated with tazemetastat exhibited a superior response to anti-PD-1 blockade therapy after adoptive transfer. Collectively, these data unveil the potential of transient epigenetic reprogramming as a potential intervention to be combined with checkpoint blockade for immune therapy.
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4
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Caballero AC, Escribà-Garcia L, Pujol-Fernández P, Escudero-López E, Ujaldón-Miró C, Montserrat-Torres R, Sierra J, Alvarez-Fernández C, Briones J. High CAR intensity of expression confers enhanced antitumor effect against lymphoma without functional exhaustion. Cancer Gene Ther 2023; 30:51-61. [PMID: 36031661 DOI: 10.1038/s41417-022-00518-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 07/22/2022] [Accepted: 08/02/2022] [Indexed: 01/19/2023]
Abstract
Identifying factors that ameliorates clinical outcomes following CART therapy represents an unmet need. We hypothesized that CAR expression level would have a significant impact on CART efficacy and tested this with CAR30+ TSCM-LIKE enriched cells. By sorting T-cells according to CAR mean fluorescence intensity in two markedly different populations (CARHI and CARLO), we showed that a high CAR expression enhances antitumor efficacy in vitro, that is sustained after sequential re-exposures to tumor cells and is not associated with T-cell exhaustion or differentiation. Furthermore, we found a correlation between high surface CAR expression and antitumor effect with CAR19+ T-cells, thus validating our findings with CAR30. Definitive proof of CARHI T-cells improved antitumor efficacy was demonstrated in a human Hodgkin's lymphoma xenograft mouse model, where CAR30-TSCM-LIKE enriched products with high intensity of CAR expression achieved superior tumor control in vivo and longer survival than those with a low intensity of CAR expression. Our data suggest that modulation of CAR intensity of expression represents an additional strategy to increase CART therapy clinical efficacy.
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Affiliation(s)
- Ana Carolina Caballero
- Hematology Service, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Laboratory of Experimental Hematology-IIB, Institut Recerca Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Josep Carreras Leukemia Research Institute, Barcelona, Spain.,Department of Medicine, Autonomous University of Barcelona, Barcelona, Spain
| | - Laura Escribà-Garcia
- Hematology Service, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Laboratory of Experimental Hematology-IIB, Institut Recerca Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Josep Carreras Leukemia Research Institute, Barcelona, Spain
| | - Paula Pujol-Fernández
- Hematology Service, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Laboratory of Experimental Hematology-IIB, Institut Recerca Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Josep Carreras Leukemia Research Institute, Barcelona, Spain
| | - Eva Escudero-López
- Hematology Service, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Laboratory of Experimental Hematology-IIB, Institut Recerca Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Josep Carreras Leukemia Research Institute, Barcelona, Spain.,Autonomous University of Barcelona, Barcelona, Spain
| | - Cristina Ujaldón-Miró
- Hematology Service, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Laboratory of Experimental Hematology-IIB, Institut Recerca Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Josep Carreras Leukemia Research Institute, Barcelona, Spain.,Autonomous University of Barcelona, Barcelona, Spain
| | - Rosanna Montserrat-Torres
- Hematology Service, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Laboratory of Experimental Hematology-IIB, Institut Recerca Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Josep Carreras Leukemia Research Institute, Barcelona, Spain
| | - Jorge Sierra
- Hematology Service, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Josep Carreras Leukemia Research Institute, Barcelona, Spain.,Autonomous University of Barcelona, Barcelona, Spain
| | - Carmen Alvarez-Fernández
- Hematology Service, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain. .,Laboratory of Experimental Hematology-IIB, Institut Recerca Hospital de la Santa Creu i Sant Pau, Barcelona, Spain. .,Josep Carreras Leukemia Research Institute, Barcelona, Spain.
| | - Javier Briones
- Hematology Service, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain. .,Laboratory of Experimental Hematology-IIB, Institut Recerca Hospital de la Santa Creu i Sant Pau, Barcelona, Spain. .,Josep Carreras Leukemia Research Institute, Barcelona, Spain. .,Autonomous University of Barcelona, Barcelona, Spain.
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5
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Najem H, Ott M, Kassab C, Rao A, Rao G, Marisetty A, Sonabend AM, Horbinski C, Verhaak R, Shankar A, Krishnan SN, Varn FS, Arrieta VA, Gupta P, Ferguson SD, Huse JT, Fuller GN, Long JP, Winkowski DE, Freiberg BA, James CD, Platanias LC, Lesniak MS, Burks JK, Heimberger AB. Central nervous system immune interactome is function of cancer lineage, tumor microenvironment and STAT3 expression. JCI Insight 2022; 7:157612. [PMID: 35316217 PMCID: PMC9090258 DOI: 10.1172/jci.insight.157612] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 03/18/2022] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Immune cell profiling of primary and metastatic CNS tumors has been focused on the tumor, not the tumor microenvironment (TME), or has been analyzed via biopsies. METHODS En bloc resections of gliomas (n = 10) and lung metastases (n = 10) were analyzed via tissue segmentation and high-dimension Opal 7-color multiplex imaging. Single-cell RNA analyses were used to infer immune cell functionality. RESULTS Within gliomas, T cells were localized in the infiltrating edge and perivascular space of tumors, while residing mostly in the stroma of metastatic tumors. CD163+ macrophages were evident throughout the TME of metastatic tumors, whereas in gliomas, CD68+, CD11c+CD68+, and CD11c+CD68+CD163+ cell subtypes were commonly observed. In lung metastases, T cells interacted with CD163+ macrophages as dyads and clusters at the brain-tumor interface and within the tumor itself and as clusters within the necrotic core. In contrast, gliomas typically lacked dyad and cluster interactions, except for T cell CD68+ cell dyads within the tumor. Analysis of transcriptomic data in glioblastomas revealed that innate immune cells expressed both proinflammatory and immunosuppressive gene signatures. CONCLUSION Our results show that immunosuppressive macrophages are abundant within the TME and that the immune cell interactome between cancer lineages is distinct. Further, these data provide information for evaluating the role of different immune cell populations in brain tumor growth and therapeutic responses. FUNDING This study was supported by the NIH (NS120547), a Developmental research project award (P50CA221747), ReMission Alliance, institutional funding from Northwestern University and the Lurie Comprehensive Cancer Center, and gifts from the Mosky family and Perry McKay. Performed in the Flow Cytometry & Cellular Imaging Core Facility at MD Anderson Cancer Center, this study received support in part from the NIH (CA016672) and the National Cancer Institute (NCI) Research Specialist award 1 (R50 CA243707). Additional support was provided by CCSG Bioinformatics Shared Resource 5 (P30 CA046592), a gift from Agilent Technologies, a Research Scholar Grant from the American Cancer Society (RSG-16-005-01), a Precision Health Investigator Award from University of Michigan (U-M) Precision Health, the NCI (R37-CA214955), startup institutional research funds from U-M, and a Biomedical Informatics & Data Science Training Grant (T32GM141746).
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Affiliation(s)
- Hinda Najem
- Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Chicago, United States of America
| | - Martina Ott
- Miltenyi Biotec B.V. & Co. KG, Bergisch Gladbach, Germany
| | - Cynthia Kassab
- Department of General Surgery, University of Texas Galveston, Galveston, United States of America
| | - Arvind Rao
- Department of Computational Medicine & Bioinformatics, University of Michigan, Ann Arbor, United States of America
| | - Ganesh Rao
- Department of Neurosurgery, Baylor College of Medicine, Houston, United States of America
| | - Anantha Marisetty
- Department of Neurosurgery, Baylor College of Medicine, Houston, United States of America
| | - Adam M Sonabend
- Department of Neurological Surgery, Feinberg School of Medicine Northwestern University, Chicago, United States of America
| | - Craig Horbinski
- Department of Neurological Surgery, Feinberg School of Medicine Northwestern University, Chicago, United States of America
| | - Roel Verhaak
- The Jackson Laboratory, Farmington, United States of America
| | - Anand Shankar
- Department of Computational Medicine & Bioinformatics, University of Michigan, Ann Arbor, United States of America
| | - Santhoshi N Krishnan
- Department of Electrical and Computer Engineering, Rice University, Houston, United States of America
| | | | - Víctor A Arrieta
- Department of Neurological Surgery, Feinberg School of Medicine Northwestern University, Chicago, United States of America
| | - Pravesh Gupta
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Sherise D Ferguson
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Jason T Huse
- Department of Neuropathology, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Gregory N Fuller
- Department of Neuropathology, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - James P Long
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | | | | | - C David James
- Department of Neurological Surgery, Feinberg School of Medicine Northwestern University, Chicago, United States of America
| | - Leonidas C Platanias
- Department of Neurological Surgery, Feinberg School of Medicine Northwestern University, Chicago, United States of America
| | - Maciej S Lesniak
- Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, United States of America
| | - Jared K Burks
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Amy B Heimberger
- Department of Neurological Surgery, Feinberg School of Medicine Northwestern University, Chicago, United States of America
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6
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Ott M, Prins RM, Heimberger AB. The immune landscape of common CNS malignancies: implications for immunotherapy. Nat Rev Clin Oncol 2021; 18:729-744. [PMID: 34117475 PMCID: PMC11090136 DOI: 10.1038/s41571-021-00518-9] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/28/2021] [Indexed: 02/06/2023]
Abstract
Immunotherapy has enabled remarkable therapeutic responses across cancers of various lineages, albeit with some notable exceptions such as glioblastoma. Several previous misconceptions, which have impaired progress in the past, including the presence and role of the blood-brain barrier and a lack of lymphatic drainage, have been refuted. Nonetheless, a subset of patients with brain metastases but, paradoxically, not the vast majority of those with gliomas are able to respond to immune-checkpoint inhibitors. Immune profiling of samples obtained from patients with central nervous system malignancies using techniques such as mass cytometry and single-cell sequencing along with experimental data from genetically engineered mouse models have revealed fundamental differences in immune composition and immunobiology that not only explain the differences in responsiveness to these agents but also lay the foundations for immunotherapeutic strategies that are applicable to gliomas. Herein, we review the emerging data on the differences in immune cell composition, function and interactions within central nervous system tumours and provide guidance on the development of novel immunotherapies for these historically difficult-to-treat cancers.
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Affiliation(s)
- Martina Ott
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Robert M Prins
- Departments of Neurosurgery and Molecular and Medical Pharmacology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Amy B Heimberger
- Department of Neurosurgery, Northwestern University, Chicago, IL, USA.
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7
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Sabbagh A, Beccaria K, Ling X, Marisetty A, Ott M, Caruso H, Barton E, Kong LY, Fang D, Latha K, Zhang DY, Wei J, DeGroot J, Curran MA, Rao G, Hu J, Desseaux C, Bouchoux G, Canney M, Carpentier A, Heimberger AB. Opening of the Blood-Brain Barrier Using Low-Intensity Pulsed Ultrasound Enhances Responses to Immunotherapy in Preclinical Glioma Models. Clin Cancer Res 2021; 27:4325-4337. [PMID: 34031054 DOI: 10.1158/1078-0432.ccr-20-3760] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 03/15/2021] [Accepted: 05/19/2021] [Indexed: 11/16/2022]
Abstract
PURPOSE The blood-brain barrier (BBB) inhibits adequate dosing/penetration of therapeutic agents to malignancies in the brain. Low-intensity pulsed ultrasound (LIPU) is a safe therapeutic method of temporary BBB disruption (BBBD) to enhance chemotherapeutic delivery to the tumor and surrounding brain parenchyma for treatment of glioblastoma. EXPERIMENTAL DESIGN We investigated if LIPU could enhance therapeutic efficacy of anti-PD-1 in C57BL/6 mice bearing intracranial GL261 gliomas, epidermal growth factor receptor variant III (EGFRvIII) chimeric antigen receptor (CAR) T cells in NSG mice with EGFRvIII-U87 gliomas, and a genetically engineered antigen-presenting cell (APC)-based therapy producing the T-cell attracting chemokine CXCL10 in the GL261-bearing mice. RESULTS Mice treated with anti-PD-1 and LIPU-induced BBBD had a median survival duration of 58 days compared with 39 days for mice treated with anti-PD-1, and long-term survivors all remained alive after contralateral hemisphere rechallenge. CAR T-cell administration with LIPU-induced BBBD resulted in significant increases in CAR T-cell delivery to the CNS after 24 (P < 0.005) and 72 (P < 0.001) hours and increased median survival by greater than 129%, in comparison with CAR T cells alone. Local deposition of CXCL10-secreting APCs in the glioma microenvironment with LIPU enhanced T-cell glioma infiltration during the therapeutic window (P = 0.004) and markedly enhanced survival (P < 0.05). CONCLUSIONS LIPU increases immune therapeutic delivery to the tumor microenvironment with an associated increase in survival and is an emerging technique for enhancing novel therapies in the brain.
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Affiliation(s)
- Aria Sabbagh
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Kevin Beccaria
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas.,Department of Pediatric Neurosurgery, Hôpital Necker-Enfants Malades, APHP, Université de Paris, 75015 Paris, France
| | - Xiaoyang Ling
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Anantha Marisetty
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Martina Ott
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Hillary Caruso
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Emily Barton
- Department of Psychology and Behavioral Neuroscience, St. Edward's University, Austin, Texas
| | - Ling-Yuan Kong
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Dexing Fang
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Khatri Latha
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Daniel Yang Zhang
- Department of Neurosurgery, Northwestern University, Chicago, Illinois
| | - Jun Wei
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - John DeGroot
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Michael A Curran
- Department of Immunology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Ganesh Rao
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jian Hu
- Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Carole Desseaux
- CarThera, Institut du Cerveau et de la Moelle épinière, Paris F-75013, France
| | - Guillaume Bouchoux
- CarThera, Institut du Cerveau et de la Moelle épinière, Paris F-75013, France
| | - Michael Canney
- CarThera, Institut du Cerveau et de la Moelle épinière, Paris F-75013, France
| | - Alexandre Carpentier
- AP-HP, Neurosurgery Department, Pitie Salpetriere Hospital, F-75013 Paris, France.,Sorbonne Universite, GRC23, Interface Neuro Machine team, F-75013 Paris, France
| | - Amy B Heimberger
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas.
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8
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Batorov EV, Aristova TA, Sergeevicheva VV, Sizikova SA, Ushakova GY, Pronkina NV, Shishkova IV, Shevela EY, Ostanin AA, Chernykh ER. Quantitative and functional characteristics of circulating and bone marrow PD-1- and TIM-3-positive T cells in treated multiple myeloma patients. Sci Rep 2020; 10:20846. [PMID: 33257767 PMCID: PMC7704628 DOI: 10.1038/s41598-020-77941-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 11/17/2020] [Indexed: 12/17/2022] Open
Abstract
The aim of the present work was to evaluate counts and functional properties of PD-1+ and TIM-3+ T cells in peripheral blood (PB) and bone marrow (BM) of multiple myeloma (MM) patients following the induction therapy. Sixty patients were enrolled in the study, CD4+ and CD8+ T cells expressing PD-1 and TIM-3, intracellular production of IFNγ and intracellular expression of Granzyme B were assessed. Relative counts of the majority of circulating PD-1+, TIM-3+ and PD-1+TIM-3+ T cells were higher in MM patients with disease progression compared with individuals in remission. Frequencies of almost all evaluated PD-1+ and TIM-3+ T cell subsets were higher in BM samples compared with PB; circulating CD4+PD-1+, CD8+PD-1+, CD8+TIM-3+, CD8+PD-1+TIM-3+ T cells positively correlated with the same BM subsets. Circulating CD4+ T cells, expressing PD-1 and TIM-3 (including co-expressing subset), as well as CD8+PD-1+TIM-3+ T cells, and BM CD8+PD-1+ T cells correlated with serum B2-M levels. Sufficient frequencies of GrB+ and IFNγ+ subsets in PD-1-expressing T cells indicated their retained functional properties. TIM-3-expressing T cells and double positive PD-1+TIM-3+ populations showed diminished cytotoxic and cytokine-producing ability and therefore might be attributed to the exhausted compartment. To identify T cell exhaustion, it is necessary to evaluate T cells co-expressing PD-1, TIM-3 and other inhibitory signal molecules and to study their functional properties. Sustained functionality of PD-1-positive T cells may explain low efficacy and frequent immune-mediated adverse events during anti-PD-1 therapy in MM.
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Affiliation(s)
- Egor V Batorov
- Laboratory of Cellular Immunotherapy, Research Institute of Fundamental and Clinical Immunology, 14 Yadrintsevskaya St, 630099, Novosibirsk, Russian Federation.
| | - Tatiana A Aristova
- Department of Hematology and Bone Marrow Transplantation, Research Institute of Fundamental and Clinical Immunology, 14 Yadrintsevskaya St, 630099, Novosibirsk, Russian Federation
| | - Vera V Sergeevicheva
- Department of Hematology and Bone Marrow Transplantation, Research Institute of Fundamental and Clinical Immunology, 14 Yadrintsevskaya St, 630099, Novosibirsk, Russian Federation
| | - Svetlana A Sizikova
- Department of Hematology and Bone Marrow Transplantation, Research Institute of Fundamental and Clinical Immunology, 14 Yadrintsevskaya St, 630099, Novosibirsk, Russian Federation
| | - Galina Y Ushakova
- Department of Hematology and Bone Marrow Transplantation, Research Institute of Fundamental and Clinical Immunology, 14 Yadrintsevskaya St, 630099, Novosibirsk, Russian Federation
| | - Natalia V Pronkina
- Laboratory of Clinical Immunology, Research Institute of Fundamental and Clinical Immunology, 14 Yadrintsevskaya St, 630099, Novosibirsk, Russian Federation
| | - Irina V Shishkova
- Laboratory of Clinical Immunology, Research Institute of Fundamental and Clinical Immunology, 14 Yadrintsevskaya St, 630099, Novosibirsk, Russian Federation
| | - Ekaterina Y Shevela
- Laboratory of Cellular Immunotherapy, Research Institute of Fundamental and Clinical Immunology, 14 Yadrintsevskaya St, 630099, Novosibirsk, Russian Federation
| | - Alexander A Ostanin
- Laboratory of Cellular Immunotherapy, Research Institute of Fundamental and Clinical Immunology, 14 Yadrintsevskaya St, 630099, Novosibirsk, Russian Federation
| | - Elena R Chernykh
- Laboratory of Cellular Immunotherapy, Research Institute of Fundamental and Clinical Immunology, 14 Yadrintsevskaya St, 630099, Novosibirsk, Russian Federation
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9
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Reitsema RD, Hid Cadena R, Nijhof SH, Abdulahad WH, Huitema MG, Paap D, Brouwer E, Boots AMH, Heeringa P. Effect of age and sex on immune checkpoint expression and kinetics in human T cells. IMMUNITY & AGEING 2020; 17:32. [PMID: 33292359 PMCID: PMC7640492 DOI: 10.1186/s12979-020-00203-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 10/19/2020] [Indexed: 12/21/2022]
Abstract
Background Immune checkpoints are crucial molecules in maintaining a proper immune balance. Even though age and sex are known to have effects on the immune system, the interplay between age, sex and immune checkpoint expression by T cells is not known. The aim of this study was to determine whether age and sex affect immune checkpoint expression by T cells and if age and sex affect the kinetics of immune checkpoint expression following ex vivo stimulation. In this study, whole blood samples of 20 healthy young adults (YA, 9 males and 11 females) and 20 healthy older adults (OA, 9 males and 11 females) were stained for lymphocyte lineage markers and immune checkpoints and frequencies of CD28+, PD-1+, VISTA+ and CD40L+ T cells were determined. Immune checkpoint expression kinetics were studied following ex vivo anti-CD3/anti-CD28 stimulation of T cells from young and older healthy adults. Results We report an age-associated increase of CD40L + CD4+ and CD40L + CD8+ T-cell frequencies, whereas CD40+ B-cell frequencies were decreased in older adults, suggesting modulation of the CD40L-CD40 interaction with age. Immune checkpoint expression kinetics revealed differences in magnitude between CD4+ and CD8+ T cells independent of age and sex. Further analysis of CD4+ T-cell subsets revealed an age-associated decrease of especially PD-1 + CD4+ memory T cells which tracked with the female sex. Conclusion Collectively, our results demonstrate that both age and sex modulate expression of immune checkpoints by human T cells. These findings may have implications for optimising vaccination and immune checkpoint immunotherapy and move the field towards precision medicine in the management of older patient groups. Supplementary Information The online version contains supplementary material available at 10.1186/s12979-020-00203-y.
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Affiliation(s)
- Rosanne D Reitsema
- Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
| | - Rebeca Hid Cadena
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Sander H Nijhof
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Wayel H Abdulahad
- Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.,Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Minke G Huitema
- Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Davy Paap
- Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Elisabeth Brouwer
- Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Annemieke M H Boots
- Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Peter Heeringa
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
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10
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Ott M, Kassab C, Marisetty A, Hashimoto Y, Wei J, Zamler D, Leu JS, Tomaszowski KH, Sabbagh A, Fang D, Gupta P, Priebe W, Zielinski RJ, Burks JK, Long JP, Kong LY, Fuller GN, DeGroot J, Sulman EP, Heimberger AB. Radiation with STAT3 Blockade Triggers Dendritic Cell-T cell Interactions in the Glioma Microenvironment and Therapeutic Efficacy. Clin Cancer Res 2020; 26:4983-4994. [PMID: 32605912 DOI: 10.1158/1078-0432.ccr-19-4092] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 04/14/2020] [Accepted: 06/24/2020] [Indexed: 11/16/2022]
Abstract
PURPOSE Patients with central nervous system (CNS) tumors are typically treated with radiotherapy, but this is not curative and results in the upregulation of phosphorylated STAT3 (p-STAT3), which drives invasion, angiogenesis, and immune suppression. Therefore, we investigated the combined effect of an inhibitor of STAT3 and whole-brain radiotherapy (WBRT) in a murine model of glioma. EXPERIMENTAL DESIGN C57BL/6 mice underwent intracerebral implantation of GL261 glioma cells, WBRT, and treatment with WP1066, a blood-brain barrier-penetrant inhibitor of the STAT3 pathway, or the two in combination. The role of the immune system was evaluated using tumor rechallenge strategies, immune-incompetent backgrounds, immunofluorescence, immune phenotyping of tumor-infiltrating immune cells (via flow cytometry), and NanoString gene expression analysis of 770 immune-related genes from immune cells, including those directly isolated from the tumor microenvironment. RESULTS The combination of WP1066 and WBRT resulted in long-term survivors and enhanced median survival time relative to monotherapy in the GL261 glioma model (combination vs. control P < 0.0001). Immunologic memory appeared to be induced, because mice were protected during subsequent tumor rechallenge. The therapeutic effect of the combination was completely lost in immune-incompetent animals. NanoString analysis and immunofluorescence revealed immunologic reprograming in the CNS tumor microenvironment specifically affecting dendritic cell antigen presentation and T-cell effector functions. CONCLUSIONS This study indicates that the combination of STAT3 inhibition and WBRT enhances the therapeutic effect against gliomas in the CNS by inducing dendritic cell and T-cell interactions in the CNS tumor.
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Affiliation(s)
- Martina Ott
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Cynthia Kassab
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Anantha Marisetty
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Yuuri Hashimoto
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jun Wei
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Daniel Zamler
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jia-Shiun Leu
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Karl-Heinz Tomaszowski
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Aria Sabbagh
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Dexing Fang
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Pravesh Gupta
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Waldemar Priebe
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Rafal J Zielinski
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jared K Burks
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - James P Long
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Ling-Yuan Kong
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Gregory N Fuller
- Department of Neuropathology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - John DeGroot
- Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Erik P Sulman
- Department of Radiation Oncology, NYU Langone Health Perlmutter Cancer Center, New York, New York
| | - Amy B Heimberger
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas.
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11
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Rao G, Sonabend A, Heimberger AB. Are radiation and response biomarkers the missing elements for efficacious immunotherapy for glioma patients? Neuro Oncol 2020; 22:590-591. [PMID: 31967642 DOI: 10.1093/neuonc/noaa018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Ganesh Rao
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Adam Sonabend
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas.,Department of Neurosurgery, Northwestern Medicine, Chicago, Illinois
| | - Amy B Heimberger
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
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12
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Yoshida S, Miyagawa S, Toyofuku T, Fukushima S, Kawamura T, Kawamura A, Kashiyama N, Nakamura Y, Toda K, Sawa Y. Syngeneic Mesenchymal Stem Cells Reduce Immune Rejection After Induced Pluripotent Stem Cell-Derived Allogeneic Cardiomyocyte Transplantation. Sci Rep 2020; 10:4593. [PMID: 32165680 PMCID: PMC7067786 DOI: 10.1038/s41598-020-58126-z] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 01/07/2020] [Indexed: 01/01/2023] Open
Abstract
Avoiding immune rejection after allogeneic induced pluripotent stem cell-derived cardiomyocyte (iPSC-CM) transplantation is a concern. However, mesenchymal stem cells (MSCs) can suppress immune rejection. To determine whether MSC co-transplantation can reduce immune rejection after allogeneic iPSC-CM transplantation, the latter cell type, harbouring a luciferase transgene, was subcutaneously transplanted alone or together with syngeneic MSCs into BALB/c mice. Bioluminescence imaging revealed that MSC co-transplantation significantly improved graft survival (day 7: iPSC-CMs alone 34 ± 5%; iPSC-CMs with MSCs, 61 ± 7%; P = 0.008). MSC co-transplantation increased CD4 + CD25 + FOXP3 + regulatory T cell numbers, apoptotic CD8-positive T cells, and IL-10 and TGF-beta expression at the implantation site. Analysis using a regulatory T cell depletion model indicated that enhanced regulatory T cell populations in the iPSC-CM with MSC group partially contributed to the extended iPSC-CM survival. Further, MSCs affected activated lymphocytes directly through cell–cell contact, which reduced the CD8/CD4 ratio, the proportion of Th1-positive cells among CD4-positive cells, and the secretion of several inflammation-related cytokines. Syngeneic MSC co-transplantation might thus control allogeneic iPSC-CM rejection by mediating immune tolerance via regulatory T cells and cell–cell contact with activated lymphocytes; this approach has promise for cardiomyogenesis-based therapy using allogeneic iPSC-CMs for severe heart failure.
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Affiliation(s)
- Shohei Yoshida
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Shigeru Miyagawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Toshihiko Toyofuku
- Department of Immunology and Molecular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Satsuki Fukushima
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Takuji Kawamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Ai Kawamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Noriyuki Kashiyama
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Yuki Nakamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Koichi Toda
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Yoshiki Sawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan.
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13
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Immune checkpoint molecules. Possible future therapeutic implications in autoimmune diseases. J Autoimmun 2019; 104:102333. [DOI: 10.1016/j.jaut.2019.102333] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 08/29/2019] [Indexed: 02/07/2023]
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14
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Patterns of TIGIT Expression in Lymphatic Tissue, Inflammation, and Cancer. DISEASE MARKERS 2019; 2019:5160565. [PMID: 30733837 PMCID: PMC6348838 DOI: 10.1155/2019/5160565] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 10/18/2018] [Indexed: 12/11/2022]
Abstract
TIGIT is an inhibitory immune checkpoint receptor and a putative target for novel immune therapies. Here, we analysed two different types of tissue microarrays of healthy lymphatic and various inflamed tissues, colorectal and lung cancers, as well as >1700 tumour samples from 86 different tumour entities for TIGIT and/or PD-1 by bright field and/or multiplex fluorescence immunohistochemistry. TIGIT was detected in CD8+ cytotoxic T cells, CD4+ T helper cells, FOXP3+ regulatory T cells, and NK cells, but not in CD11c+ dendritic cells, CD68+ macrophages, and CD20+ B lymphocytes. TIGIT expression paralleled that of PD-1. More than 70% of TIGIT+ cells were PD-1+, and more than 90% of the PD-1+ cells were TIGIT+. Expression varied between different tissue compartments. TIGIT expression in tonsil gradually increased from the interfollicular area over the marginal/mantle zone to the germinal centre in all T cell subtypes. In inflammatory diseases, the strongest expression of TIGIT/PD-1 was found in Hashimoto thyroiditis. TIGIT+ lymphocytes were seen in all 86 different tumour entities with considerable high variability of TIGIT positivity within and between different cancer entities. Particularly, high densities of TIGIT+ lymphocytes were, for example, seen in squamous cell cancers of various origins. In summary, the variable expression levels of TIGIT and PD-1 in cell types and tissue compartments illustrate the high complexity of immune microenvironments. The high frequency of TIGIT (and PD-1) expressing lymphocytes in cancers highlights considerable opportunities for cotargeting with checkpoint inhibitors.
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15
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Ghosh S, Sharma G, Travers J, Kumar S, Choi J, Jun HT, Kehry M, Ramaswamy S, Jenkins D. TSR-033, a Novel Therapeutic Antibody Targeting LAG-3, Enhances T-Cell Function and the Activity of PD-1 Blockade In Vitro and In Vivo. Mol Cancer Ther 2018; 18:632-641. [PMID: 30587557 DOI: 10.1158/1535-7163.mct-18-0836] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 09/25/2018] [Accepted: 12/18/2018] [Indexed: 11/16/2022]
Abstract
Progressive upregulation of checkpoints on tumor-infiltrating lymphocytes promotes an immunosuppressive tumor microenvironment, severely compromising tumor immunity. Lymphocyte activation gene-3 (LAG-3) is a coinhibitory receptor associated with impaired T-cell function and is frequently coexpressed with programmed cell death protein-1 (PD-1) in the context of human cancers. Targeting LAG-3 in conjunction with PD-1 thus represents a strategy to amplify and broaden the therapeutic impact of PD-1 blockade alone. We have generated a high affinity and selective humanized monoclonal IgG4 antibody, TSR-033, which binds human LAG-3 and serves as a functional antagonist, enhancing in vitro T-cell activation both in mixed lymphocyte reactions and staphylococcal enterotoxin B-driven stimulation assays. In a humanized mouse non-small cell lung carcinoma model, TSR-033 boosted the antitumor efficacy of PD-1 monotherapy, with a concomitant increase in immune activation. Analogous studies in a murine syngeneic tumor model using surrogate antibodies demonstrated significant synergy between LAG-3 and PD-1 blockade-combination treatment led to a marked improvement in therapeutic efficacy, increased T-cell proliferation, IFNγ production, and elicited durable immunologic memory upon tumor rechallenge. Taken together, the pharmacologic activity of TSR-033 demonstrates that it is a potent anti-LAG-3 therapeutic antibody and supports its clinical investigation in cancer patients.
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16
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Chowdhury FZ, Ouyang Z, Buzon M, Walker BD, Lichterfeld M, Yu XG. Metabolic pathway activation distinguishes transcriptional signatures of CD8+ T cells from HIV-1 elite controllers. AIDS 2018; 32:2669-2677. [PMID: 30289807 DOI: 10.1097/qad.0000000000002007] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVE Elite controllers, defined as persons maintaining undetectable levels of HIV-1 replication in the absence of antiretroviral therapy, represent living evidence that sustained, natural control of HIV-1 is possible, at least in relatively rare instances. Understanding the complex immunologic and virologic characteristics of these specific patients holds promise for inducing drug-free control of HIV-1 in broader populations of HIV-1 infected patients. DESIGN We used an unbiased transcriptional profiling approach to characterize CD8+ T cells, the strongest correlate of HIV-1 immune control identified thus far, in a large cohort of elite controllers (n = 51); highly active antiretrovial therapy (HAART)-treated patients (n = 32) and HIV-1 negative (n = 10) served as reference cohorts. METHODS We isolated mRNA from total CD8+ T cells isolated from peripheral blood mononuclear cell (PBMC) of each individual followed by microarray analysis of the transcriptional signatures. RESULTS We observed profound transcriptional differences [590 transcripts, false discovery rate (FDR)-adjusted P < 0.05] between elite controller and HAART-treated patients. Interestingly, metabolic and signalling pathways governed by mammalian target of rapamycin (mTOR) and eIF2, known for their key roles in regulating cellular growth, proliferation and metabolism, were among the top functions enriched in the differentially expressed genes, suggesting a therapeutically actionable target as a distinguishing feature of spontaneous HIV-1 immune control. A subsequent bootstrapping approach distinguished five different subgroups of elite controller, each characterized by distinct transcriptional signatures. However, despite this marked heterogeneity, differential regulation of mTOR and eIF2 signalling remained the dominant functional pathway in three of these elite controller subgroups. CONCLUSION These studies suggest that mTOR and eIF2 signalling may play a remarkably universal role for regulating CD8 T-cell function from elite controllers.
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17
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Sabins NC, Chornoguz O, Leander K, Kaplan F, Carter R, Kinder M, Bachman K, Verona R, Shen S, Bhargava V, Santulli-Marotto S. TIM-3 Engagement Promotes Effector Memory T Cell Differentiation of Human Antigen-Specific CD8 T Cells by Activating mTORC1. THE JOURNAL OF IMMUNOLOGY 2017; 199:4091-4102. [PMID: 29127145 DOI: 10.4049/jimmunol.1701030] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 10/16/2017] [Indexed: 01/19/2023]
Abstract
T cell expression of TIM-3 following Ag encounter has been associated with a continuum of functional states ranging from effector memory T cells to exhaustion. We have designed an in vitro culture system to specifically address the impact of anti-TIM-3/TIM-3 engagement on human Ag-specific CD8 T cells during a normal response to Ag and found that anti-TIM-3 treatment enhances T cell function. In our in vitro T cell culture system, MART1-specific CD8 T cells were expanded from healthy donors using artificial APCs. To ensure that the T cells were the only source of TIM-3, cells were rechallenged with peptide-loaded artificial APCs in the presence of anti-TIM-3 Ab. In these conditions, anti-TIM-3 treatment promotes generation of effector T cells as shown by acquisition of an activated phenotype, increased cytokine production, enhanced proliferation, and a transcription program associated with T cell differentiation. Activation of mTORC1 has been previously demonstrated to enhance CD8 T cell effector function and differentiation. Anti-TIM-3 drives CD8 T cell differentiation through activation of the mTORC1 as evidenced by increased levels of phosphorylated S6 protein and rhebl1 transcript. Altogether these findings suggest that anti-TIM-3, together with Ag, drives differentiation in favor of effector T cells via the activation of mTOR pathway. To our knowledge, this is the first report demonstrating that TIM-3 engagement during Ag stimulation directly influences T cell differentiation through mTORC1.
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Affiliation(s)
- Nina Chi Sabins
- Janssen Biotherapeutics, Janssen Research and Development, Spring House, PA 19477
| | - Olesya Chornoguz
- Janssen Biotherapeutics, Janssen Research and Development, Spring House, PA 19477
| | - Karen Leander
- Janssen Biotherapeutics, Janssen Research and Development, Spring House, PA 19477
| | - Fred Kaplan
- Oncology, Janssen Research and Development, Spring House, PA 19477
| | - Richard Carter
- Janssen Biotherapeutics, Janssen Research and Development, Spring House, PA 19477
| | - Michelle Kinder
- Oncology, Janssen Research and Development, Spring House, PA 19477
| | - Kurtis Bachman
- Oncology, Janssen Research and Development, Spring House, PA 19477
| | - Raluca Verona
- Oncology, Janssen Research and Development, Spring House, PA 19477
| | - Shixue Shen
- Oncology, Janssen Research and Development, Spring House, PA 19477
| | - Vipul Bhargava
- Computational and Systems Biology, Janssen Research and Development, Spring House, PA 19477; and
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18
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Sorafenib combined with HER-2 targeted vaccination can promote effective T cell immunity in vivo. Int Immunopharmacol 2017; 46:112-123. [PMID: 28282575 DOI: 10.1016/j.intimp.2017.02.028] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Revised: 02/27/2017] [Accepted: 02/28/2017] [Indexed: 01/02/2023]
Abstract
The tumor microenvironment (TME) is established and maintained through complex interactions between tumor cells and host stromal elements. Therefore, therapies that target multiple cellular components of the tumor may be most effective. Sorafenib, a multi-kinase inhibitor, alters signaling pathways in both tumor cells and host stromal cells. Thus, we explored the potential immune-modulating effects of sorafenib in a murine HER-2-(neu) overexpressing breast tumor model alone and in combination with a HER-2 targeted granulocyte-macrophage colony-stimulating factor (GM-CSF)-secreting vaccine (3T3neuGM). In vitro, sorafenib inhibited the growth of HER-2 overexpressing NT2.5 tumor cells, inducing apoptosis. Sorafenib also interfered with ERK MAPK, p38 MAPK, and STAT3 signaling, as well as cyclin D expression, but did not affect HER-2 or AKT signaling. In vivo, single agent sorafenib disrupted the tumor-associated vasculature and induced tumor cell apoptosis, effectively inducing the regression of established NT2.5 tumors in immune competent FVB/N mice. Immune depletion studies demonstrated that both CD4+ and CD8+ T cells were required for tumor regression. Sorafenib treatment did not impact the rate of tumor clearance induced by vaccination with 3T3neuGM in tumor-bearing FVB/N mice relative to either sorafenib treatment or vaccination alone. In vivo studies further demonstrated that sorafenib enhanced the accumulation of both CD4+ and CD8+ T cells into the TME of vaccinated mice. Together, these findings suggest that GM-CSF-secreting cellular immunotherapy may be integrated with sorafenib without impairing vaccine-based immune responses.
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