1
|
Fang J, Lu Y, Zheng J, Jiang X, Shen H, Shang X, Lu Y, Fu P. Exploring the crosstalk between endothelial cells, immune cells, and immune checkpoints in the tumor microenvironment: new insights and therapeutic implications. Cell Death Dis 2023; 14:586. [PMID: 37666809 PMCID: PMC10477350 DOI: 10.1038/s41419-023-06119-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 08/19/2023] [Accepted: 08/25/2023] [Indexed: 09/06/2023]
Abstract
The tumor microenvironment (TME) is a highly intricate milieu, comprising a multitude of components, including immune cells and stromal cells, that exert a profound influence on tumor initiation and progression. Within the TME, angiogenesis is predominantly orchestrated by endothelial cells (ECs), which foster the proliferation and metastasis of malignant cells. The interplay between tumor and immune cells with ECs is complex and can either bolster or hinder the immune system. Thus, a comprehensive understanding of the intricate crosstalk between ECs and immune cells is essential to advance the development of immunotherapeutic interventions. Despite recent progress, the underlying molecular mechanisms that govern the interplay between ECs and immune cells remain elusive. Nevertheless, the immunomodulatory function of ECs has emerged as a pivotal determinant of the immune response. In light of this, the study of the relationship between ECs and immune checkpoints has garnered considerable attention in the field of immunotherapy. By targeting specific molecular pathways and signaling molecules associated with ECs in the TME, novel immunotherapeutic strategies may be devised to enhance the efficacy of current treatments. In this vein, we sought to elucidate the relationship between ECs, immune cells, and immune checkpoints in the TME, with the ultimate goal of identifying novel therapeutic targets and charting new avenues for immunotherapy.
Collapse
Affiliation(s)
- Jianwen Fang
- Department of Breast Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, 310003, Hangzhou, China
| | - Yue Lu
- Department of Breast and Thyroid Surgery, First Affiliated Hospital of Huzhou University, 313000, Huzhou, China
| | - Jingyan Zheng
- Department of Breast and Thyroid Surgery, Lishui People's Hospital, The Six Affiliated Hospital of Wenzhou Medical University, 323000, Lishui, China
| | - Xiaocong Jiang
- Department of Breast Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, 310003, Hangzhou, China
| | - Haixing Shen
- Department of Breast Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, 310003, Hangzhou, China
- Department of Breast and Thyroid Surgery, Cixi People's Hospital, 315300, Cixi, China
| | - Xi Shang
- Department of Breast and Thyroid Surgery, Taizhou Hospital, Zhejiang University, 318000, Taizhou, China
| | - Yuexin Lu
- Department of Breast Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, 310003, Hangzhou, China
| | - Peifen Fu
- Department of Breast Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, 310003, Hangzhou, China.
| |
Collapse
|
2
|
Yang M, Tian S, Lin Z, Fu Z, Li C. Costimulatory and coinhibitory molecules of B7-CD28 family in cardiovascular atherosclerosis: A review. Medicine (Baltimore) 2022; 101:e31667. [PMID: 36397436 PMCID: PMC9666218 DOI: 10.1097/md.0000000000031667] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Accumulating evidence supports the active involvement of vascular inflammation in atherosclerosis pathogenesis. Vascular inflammatory events within atherosclerotic plaques are predominated by innate antigen-presenting cells (APCs), including dendritic cells, macrophages, and adaptive immune cells such as T lymphocytes. The interaction between APCs and T cells is essential for the initiation and progression of vascular inflammation during atherosclerosis formation. B7-CD28 family members that provide either costimulatory or coinhibitory signals to T cells are important mediators of the cross-talk between APCs and T cells. The balance of different functional members of the B7-CD28 family shapes T cell responses during inflammation. Recent studies from both mouse and preclinical models have shown that targeting costimulatory molecules on APCs and T cells may be effective in treating vascular inflammatory diseases, especially atherosclerosis. In this review, we summarize recent advances in understanding how APC and T cells are involved in the pathogenesis of atherosclerosis by focusing on B7-CD28 family members and provide insight into the immunotherapeutic potential of targeting B7-CD28 family members in atherosclerosis.
Collapse
Affiliation(s)
- Mao Yang
- Department of Cardiology, Electrophysiological Center of Cardiology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Simeng Tian
- Basic Medicine College, Harbin Medical University, Harbin, China
| | - Zhoujun Lin
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, Tianjin, China
| | - Zhenkun Fu
- Basic Medicine College, Harbin Medical University, Harbin, China
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, Tianjin, China
- Department of Immunology, Wu Lien-Teh Institute, Heilongjiang Provincial Key Laboratory for Infection and Immunity, Harbin Medical University, Heilongjiang Academy of Medical Science, Harbin, China
- * Correspondence: Zhenkun Fu, Basic Medicine College, Harbin Medical University, Harbin, China (e-mail. ); Chenggang Li, State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, Tianjin, China (e-mail. )
| | - Chenggang Li
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, Tianjin, China
- * Correspondence: Zhenkun Fu, Basic Medicine College, Harbin Medical University, Harbin, China (e-mail. ); Chenggang Li, State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, Tianjin, China (e-mail. )
| |
Collapse
|
3
|
Yousif LI, Tanja AA, de Boer RA, Teske AJ, Meijers WC. The role of immune checkpoints in cardiovascular disease. Front Pharmacol 2022; 13:989431. [PMID: 36263134 PMCID: PMC9574006 DOI: 10.3389/fphar.2022.989431] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 09/12/2022] [Indexed: 11/30/2022] Open
Abstract
Immune checkpoint inhibitors (ICI) are monoclonal antibodies which bind to immune checkpoints (IC) and their ligands to prevent inhibition of T-cell activation by tumor cells. Currently, multiple ICI are approved targeting Cytotoxic T-lymphocyte antigen 4 (CTLA-4), Programmed Death Protein 1 (PD-1) and its ligand PD-L1, and Lymphocyte-activation gene 3 (LAG-3). This therapy has provided potent anti-tumor effects and improved prognosis for many cancer patients. However, due to systemic effects, patients can develop immune related adverse events (irAE), including possible life threatening cardiovascular irAE, like atherosclerosis, myocarditis and cardiomyopathy. Inhibition of vascular IC is associated with increased atherosclerotic burden and plaque instability. IC protect against atherosclerosis by inhibiting T-cell activity and cytokine production, promoting regulatory T-cell differentiation and inducing T-cell exhaustion. In addition, PD-L1 on endothelial cells might promote plaque stability by reducing apoptosis and increasing expression of tight junction molecules. In the heart, IC downregulate the immune response to protect against cardiac injury by reducing T-cell activity and migration. Here, inhibition of IC could induce life-threatening T-cell-mediated-myocarditis. One proposed purpose behind lymphocyte infiltration is reaction to cardiac antigens, caused by decreased self-tolerance, and thereby increased autoimmunity because of IC inhibition. In addition, there are several reports of ICI-mediated cardiomyopathy with immunoglobulin G expression on cardiomyocytes, indicating an autoimmune response. IC are mostly known due to their cardiotoxicity. However, t his review compiles current knowledge on mechanisms behind IC function in cardiovascular disease with the aim of providing an overview of possible therapeutic targets in prevention or treatment of cardiovascular irAEs.
Collapse
Affiliation(s)
- Laura I. Yousif
- Department of Experimental Cardiology, University Medical Center Groningen, Groningen, Netherlands
| | - Anniek A. Tanja
- Graduate School of Life Science, Utrecht University, Utrecht, Netherlands
| | - Rudolf A. de Boer
- Department of Cardiology, Thorax Center, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Arco J. Teske
- Department of Cardiology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Wouter C. Meijers
- Department of Experimental Cardiology, University Medical Center Groningen, Groningen, Netherlands
| |
Collapse
|
4
|
Lin Z, Xiong Y, Meng W, Hu Y, Chen L, Chen L, Xue H, Panayi AC, Zhou W, Sun Y, Cao F, Liu G, Hu L, Yan C, Xie X, Lin C, Cai K, Feng Q, Mi B, Liu G. Exosomal PD-L1 induces osteogenic differentiation and promotes fracture healing by acting as an immunosuppressant. Bioact Mater 2022; 13:300-311. [PMID: 35224310 PMCID: PMC8844834 DOI: 10.1016/j.bioactmat.2021.10.042] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 10/27/2021] [Accepted: 10/28/2021] [Indexed: 12/25/2022] Open
Abstract
A moderate inflammatory response at the early stages of fracture healing is necessary for callus formation. Over-active and continuous inflammation, however, impairs fracture healing and leads to excessive tissue damage. Adequate fracture healing could be promoted through suppression of local over-active immune cells in the fracture site. In the present study, we achieved an enriched concentration of PD-L1 from exosomes (Exos) of a genetically engineered Human Umbilical Vein Endothelial Cell (HUVECs), and demonstrated that exosomes overexpressing PD-L1 specifically bind to PD-1 on the T cell surface, suppressing the activation of T cells. Furthermore, exosomal PD-L1 induced Mesenchymal Stem Cells (MSCs) towards osteogenic differentiation when pre-cultured with T cells. Moreover, embedding of Exos into an injectable hydrogel allowed Exos delivery to the surrounding microenvironment in a time-released manner. Additionally, exosomal PD-L1, embedded in a hydrogel, markedly promoted callus formation and fracture healing in a murine model at the early over-active inflammation phase. Importantly, our results suggested that activation of T cells in the peripheral lymphatic tissues was inhibited after local administration of PD-L1-enriched Exos to the fracture sites, while T cells in distant immune organs such as the spleen were not affected. In summary, this study provides the first example of using PD-L1-enriched Exos for bone fracture repair, and highlights the potential of Hydrogel@Exos systems for bone fracture therapy through immune inhibitory effects.
Collapse
Affiliation(s)
- Ze Lin
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Yuan Xiong
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Weilin Meng
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Yiqiang Hu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Lili Chen
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Lang Chen
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Hang Xue
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Adriana C. Panayi
- Division of Plastic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02152, USA
| | - Wu Zhou
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Yun Sun
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Faqi Cao
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Guodong Liu
- Medical Center of Trauma and War Injuries, Daping Hospital, Army Medical University, Chongqing, 400042, China
| | - Liangcong Hu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Chenchen Yan
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Xudong Xie
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Chuanchuan Lin
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Kaiyong Cai
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Qian Feng
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Bobin Mi
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Guohui Liu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| |
Collapse
|
5
|
Arnaud M, Demonchy J, Arrii E, Luperto M, Lion J, Fodil S, Pons S, Mooney N, Zafrani L. Endothelial Cells Activated by Extracellular Histones Promote Foxp3 + Suppressive Treg Cells In Vitro. Int J Mol Sci 2022; 23:ijms23094527. [PMID: 35562918 PMCID: PMC9103825 DOI: 10.3390/ijms23094527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/13/2022] [Accepted: 04/15/2022] [Indexed: 11/16/2022] Open
Abstract
Histones are widely recognized as pro-inflammatory mediators upon their release from the nucleus into the extracellular space. However, their impact on endothelial cell immunogenicity is unknown. Endothelial cells, Human Microvascular Endothelial cells 1 (HMEC1), have been exposed to recombinant histones in order to study their effect on the endothelial phenotype. We then studied the differentiation of CD4+-T lymphocytes subpopulations after three days of interaction with endothelial cells in vitro and observed that histone-treated endothelial cells differentiate a suppressive FoxP3+ T regulator subpopulation that expressed Human Leucocyte Antigen DR (HLA-DR) and Cytotoxic T-Lymphocyte-Associated protein 4 (CTLA4). Toll-Like Receptor 4 (TLR4) inhibition significantly decreased the expansion of these Treg cells. Moreover, blockade of Interleukin (IL)-6 and Intercellular Adhesion Molecule (ICAM)-1 in cocultures significantly decreased the expansion of Tregs, suggesting an IL-6 and ICAM-1 dependent pathway. Thus, beyond their inflammatory effects, extracellular histones may induce an increase of immunosuppressive Treg population via their action on endothelial cells. Further studies are needed to evaluate the impact on immunosuppression of an increase of peripheral suppressive Treg via endothelial cell activation by histones in vivo.
Collapse
Affiliation(s)
- Marine Arnaud
- Human Immunology, Pathophysiology and Immunotherapy, INSERM U 976, University Paris Cite, 75010 Paris, France; (M.A.); (J.D.); (E.A.); (M.L.); (J.L.); (S.F.); (S.P.); (N.M.)
| | - Jordane Demonchy
- Human Immunology, Pathophysiology and Immunotherapy, INSERM U 976, University Paris Cite, 75010 Paris, France; (M.A.); (J.D.); (E.A.); (M.L.); (J.L.); (S.F.); (S.P.); (N.M.)
| | - Eden Arrii
- Human Immunology, Pathophysiology and Immunotherapy, INSERM U 976, University Paris Cite, 75010 Paris, France; (M.A.); (J.D.); (E.A.); (M.L.); (J.L.); (S.F.); (S.P.); (N.M.)
| | - Marta Luperto
- Human Immunology, Pathophysiology and Immunotherapy, INSERM U 976, University Paris Cite, 75010 Paris, France; (M.A.); (J.D.); (E.A.); (M.L.); (J.L.); (S.F.); (S.P.); (N.M.)
| | - Julien Lion
- Human Immunology, Pathophysiology and Immunotherapy, INSERM U 976, University Paris Cite, 75010 Paris, France; (M.A.); (J.D.); (E.A.); (M.L.); (J.L.); (S.F.); (S.P.); (N.M.)
| | - Sofiane Fodil
- Human Immunology, Pathophysiology and Immunotherapy, INSERM U 976, University Paris Cite, 75010 Paris, France; (M.A.); (J.D.); (E.A.); (M.L.); (J.L.); (S.F.); (S.P.); (N.M.)
| | - Stéphanie Pons
- Human Immunology, Pathophysiology and Immunotherapy, INSERM U 976, University Paris Cite, 75010 Paris, France; (M.A.); (J.D.); (E.A.); (M.L.); (J.L.); (S.F.); (S.P.); (N.M.)
| | - Nuala Mooney
- Human Immunology, Pathophysiology and Immunotherapy, INSERM U 976, University Paris Cite, 75010 Paris, France; (M.A.); (J.D.); (E.A.); (M.L.); (J.L.); (S.F.); (S.P.); (N.M.)
| | - Lara Zafrani
- Human Immunology, Pathophysiology and Immunotherapy, INSERM U 976, University Paris Cite, 75010 Paris, France; (M.A.); (J.D.); (E.A.); (M.L.); (J.L.); (S.F.); (S.P.); (N.M.)
- Medical Intensive Care Unit, Assistance Publique des Hôpitaux de Paris, Saint Louis Hospital, 75010 Paris, France
- Correspondence:
| |
Collapse
|
6
|
Huinen ZR, Huijbers EJM, van Beijnum JR, Nowak-Sliwinska P, Griffioen AW. Anti-angiogenic agents - overcoming tumour endothelial cell anergy and improving immunotherapy outcomes. Nat Rev Clin Oncol 2021; 18:527-540. [PMID: 33833434 DOI: 10.1038/s41571-021-00496-y] [Citation(s) in RCA: 143] [Impact Index Per Article: 47.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/01/2021] [Indexed: 02/07/2023]
Abstract
Immune checkpoint inhibitors have revolutionized medical oncology, although currently only a subset of patients has a response to such treatment. A compelling body of evidence indicates that anti-angiogenic therapy has the capacity to ameliorate antitumour immunity owing to the inhibition of various immunosuppressive features of angiogenesis. Hence, combinations of anti-angiogenic agents and immunotherapy are currently being tested in >90 clinical trials and 5 such combinations have been approved by the FDA in the past few years. In this Perspective, we describe how the angiogenesis-induced endothelial immune cell barrier hampers antitumour immunity and the role of endothelial cell anergy as the vascular counterpart of immune checkpoints. We review the antitumour immunity-promoting effects of anti-angiogenic agents and provide an update on the current clinical successes achieved when these agents are combined with immune checkpoint inhibitors. Finally, we propose that anti-angiogenic agents are immunotherapies - and vice versa - and discuss future research priorities.
Collapse
Affiliation(s)
- Zowi R Huinen
- Angiogenesis Laboratory, Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Elisabeth J M Huijbers
- Angiogenesis Laboratory, Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Judy R van Beijnum
- Angiogenesis Laboratory, Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Patrycja Nowak-Sliwinska
- Molecular Pharmacology Group, School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland. .,Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, Geneva, Switzerland.
| | - Arjan W Griffioen
- Angiogenesis Laboratory, Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Amsterdam, Netherlands.
| |
Collapse
|
7
|
Wang ZC, Yao Y, Chen CL, Guo CL, Ding HX, Song J, Wang ZZ, Wang N, Li XL, Liao B, Yang Y, Yu D, Liu Z. Extrafollicular PD-1 highCXCR5 -CD4 + T cells participate in local immunoglobulin production in nasal polyps. J Allergy Clin Immunol 2021; 149:610-623. [PMID: 34224786 DOI: 10.1016/j.jaci.2021.06.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 06/01/2021] [Accepted: 06/23/2021] [Indexed: 12/20/2022]
Abstract
BACKGROUND Local immunoglobulin hyperproduction is observed in nasal polyps (NPs) with and without ectopic lymphoid tissues (eLTs). OBJECTIVE Our aim was to identify the T-cell subsets involved in local immunoglobulin production independent of eLTs in NPs. METHODS The localization, abundance, and phenotype of CD4+ T-cell subsets were studied by immunofluorescence, flow cytometry, and single-cell RNA sequencing. Purified nasal T-cell subsets were cultured with autologous peripheral naive B cells to explore their function. Programmed death ligand 1 and programmed death ligand 2 expression in NPs was investigated by immunofluorescence staining and flow cytometry. RESULTS Accumulation of PD-1highCXCR5-CD4+ T cells outside lymphoid aggregates was found in NPs. Nasal PD-1highCXCR5-CD4+ T cells were characterized by a unique phenotype that was related to B-cell help and tissue residency and distinct from PD-1-/intCXCR5- and CXCR5+ CD4+ T cells in NPs as well as PD-1highCXCR5highCD4+ follicular helper T cells in tonsils. Compared with the frequencies of PD-1highCXCR5-CD4+ T cells and their IFN-γ+, IL-17A+, and IL-21+ subsets in the control inferior turbinate tissues, the frequencies of these cells and their subsets were increased in both eosinophilic and noneosinophilic NPs, whereas the frequencies of the IL-4+ and IL-4+IL-21+ subsets were increased only in eosinophilic NPs. Nasal PD-1highCXCR5-CD4+ T cells induced immunoglobulin production from B cells in a potency comparable to that induced by tonsillar follicular helper T cells. PD-1highCXCR5-CD4+ T-cell frequencies were correlated with IgE levels in eosinophilic NPs. PD-L1 and PD-L2 suppressed the function of PD-1highCXCR5-CD4+ T cells, and their levels were reduced in NPs. PD-1highCXCR5-CD4+ T-cell abundance was associated with the postsurgical relapse of NPs. CONCLUSION PD-1highCXCR5-CD4+ T cells participate in local immunoglobulin production independent of eLTs in NPs.
Collapse
Affiliation(s)
- Zhi-Chao Wang
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yin Yao
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Cai-Ling Chen
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Cui-Lian Guo
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hong-Xia Ding
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jia Song
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhe-Zheng Wang
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Nan Wang
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xue-Li Li
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bo Liao
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yang Yang
- The University of Queensland Diamantina Institute, Faculty of Medicine, The University of Queensland, Brisbane, Australia
| | - Di Yu
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zheng Liu
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| |
Collapse
|
8
|
Liang Y, Li L, Chen Y, Xiao J, Wei D. PD-1/PD-L1 immune checkpoints: Tumor vs atherosclerotic progression. Clin Chim Acta 2021; 519:70-75. [PMID: 33872608 DOI: 10.1016/j.cca.2021.04.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 04/09/2021] [Accepted: 04/14/2021] [Indexed: 12/13/2022]
Abstract
Immunotherapy has become one of the most attraction cancer therapy strategies. The PD-1/PD-L1 pathway plays key roles in immune responses and autoimmunity by regulating T cell activity. Overactivation of this pathway dampens T cell and immune function, which allows tumor cells immune escape. Antibody or inhibitors of PD-1/PD-L1 immune targets have been implicated in clinic anti-cancer therapy and gain great clinic outcoming for their high efficiency. However, recent studies showed that the PD-1/PD-L1 immunotherapy in some tumor patients was found to accelerate T cell-driven inflammatory and the progression of atherosclerotic lesions. This article reviews the research progression of PD-1/PD-L1 in tumors and atherosclerosis, and the possible mechanisms of anti-PD-1/PD-L1 immunotherapy increasing the risk of atherosclerotic lesions.
Collapse
Affiliation(s)
- Yamin Liang
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, China
| | - Lu Li
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, China
| | - Yanmei Chen
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, China
| | - Jinyan Xiao
- YueYang Maternal-Child Medicine Health Hospital Hunan Province Innovative Training Base for Medical Postgraduates, University of China South China and Yueyang Women & Children's Medical Center, Yueyang, Hunan 414000, China.
| | - Dangheng Wei
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, China.
| |
Collapse
|
9
|
Peelen DM, Hoogduijn MJ, Hesselink DA, Baan CC. Advanced in vitro Research Models to Study the Role of Endothelial Cells in Solid Organ Transplantation. Front Immunol 2021; 12:607953. [PMID: 33664744 PMCID: PMC7921837 DOI: 10.3389/fimmu.2021.607953] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 01/21/2021] [Indexed: 12/26/2022] Open
Abstract
The endothelium plays a key role in acute and chronic rejection of solid organ transplants. During both processes the endothelium is damaged often with major consequences for organ function. Also, endothelial cells (EC) have antigen-presenting properties and can in this manner initiate and enhance alloreactive immune responses. For decades, knowledge about these roles of EC have been obtained by studying both in vitro and in vivo models. These experimental models poorly imitate the immune response in patients and might explain why the discovery and development of agents that control EC responses is hampered. In recent years, various innovative human 3D in vitro models mimicking in vivo organ structure and function have been developed. These models will extend the knowledge about the diverse roles of EC in allograft rejection and will hopefully lead to discoveries of new targets that are involved in the interactions between the donor organ EC and the recipient's immune system. Moreover, these models can be used to gain a better insight in the mode of action of the currently prescribed immunosuppression and will enhance the development of novel therapeutics aiming to reduce allograft rejection and prolong graft survival.
Collapse
Affiliation(s)
- Daphne M Peelen
- Rotterdam Transplant Group, Department of Internal Medicine, Nephrology and Transplantation, Erasmus MC, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Martin J Hoogduijn
- Rotterdam Transplant Group, Department of Internal Medicine, Nephrology and Transplantation, Erasmus MC, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Dennis A Hesselink
- Rotterdam Transplant Group, Department of Internal Medicine, Nephrology and Transplantation, Erasmus MC, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Carla C Baan
- Rotterdam Transplant Group, Department of Internal Medicine, Nephrology and Transplantation, Erasmus MC, Erasmus University Medical Center, Rotterdam, Netherlands
| |
Collapse
|
10
|
Abou Khouzam R, Brodaczewska K, Filipiak A, Zeinelabdin NA, Buart S, Szczylik C, Kieda C, Chouaib S. Tumor Hypoxia Regulates Immune Escape/Invasion: Influence on Angiogenesis and Potential Impact of Hypoxic Biomarkers on Cancer Therapies. Front Immunol 2021; 11:613114. [PMID: 33552076 PMCID: PMC7854546 DOI: 10.3389/fimmu.2020.613114] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 11/30/2020] [Indexed: 01/19/2023] Open
Abstract
The environmental and metabolic pressures in the tumor microenvironment (TME) play a key role in molding tumor development by impacting the stromal and immune cell fractions, TME composition and activation. Hypoxia triggers a cascade of events that promote tumor growth, enhance resistance to the anti-tumor immune response and instigate tumor angiogenesis. During growth, the developing angiogenesis is pathological and gives rise to a haphazardly shaped and leaky tumor vasculature with abnormal properties. Accordingly, aberrantly vascularized TME induces immunosuppression and maintains a continuous hypoxic state. Normalizing the tumor vasculature to restore its vascular integrity, should hence enhance tumor perfusion, relieving hypoxia, and reshaping anti-tumor immunity. Emerging vascular normalization strategies have a great potential in achieving a stable normalization, resulting in mature and functional blood vessels that alleviate tumor hypoxia. Biomarkers enabling the detection and monitoring of tumor hypoxia could be highly advantageous in aiding the translation of novel normalization strategies to clinical application, alone, or in combination with other treatment modalities, such as immunotherapy.
Collapse
Affiliation(s)
- Raefa Abou Khouzam
- Thumbay Research Institute for Precision Medicine, Gulf Medical University, Ajman, United Arab Emirates
| | - Klaudia Brodaczewska
- Laboratory of Molecular Oncology and Innovative Therapies, Military Institute of Medicine, Warsaw, Poland
| | - Aleksandra Filipiak
- Laboratory of Molecular Oncology and Innovative Therapies, Military Institute of Medicine, Warsaw, Poland.,Postgraduate School of Molecular Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Nagwa Ahmed Zeinelabdin
- Thumbay Research Institute for Precision Medicine, Gulf Medical University, Ajman, United Arab Emirates
| | - Stephanie Buart
- INSERM UMR 1186, Integrative Tumor Immunology and Genetic Oncology, Gustave Roussy, EPHE, Faulty. De médecine Univ. Paris-Sud, University Paris-Saclay, Villejuif, France
| | - Cezary Szczylik
- Centre of Postgraduate Medical Education, Department of Oncology, European Health Centre, Otwock, Warsaw, Poland
| | - Claudine Kieda
- Laboratory of Molecular Oncology and Innovative Therapies, Military Institute of Medicine, Warsaw, Poland.,Centre for Molecular Biophysics, UPR CNRS 4301, Orléans, France
| | - Salem Chouaib
- Thumbay Research Institute for Precision Medicine, Gulf Medical University, Ajman, United Arab Emirates.,INSERM UMR 1186, Integrative Tumor Immunology and Genetic Oncology, Gustave Roussy, EPHE, Faulty. De médecine Univ. Paris-Sud, University Paris-Saclay, Villejuif, France
| |
Collapse
|
11
|
Delicate Role of PD-L1/PD-1 Axis in Blood Vessel Inflammatory Diseases: Current Insight and Future Significance. Int J Mol Sci 2020; 21:ijms21218159. [PMID: 33142805 PMCID: PMC7663405 DOI: 10.3390/ijms21218159] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 10/25/2020] [Accepted: 10/28/2020] [Indexed: 02/06/2023] Open
Abstract
Immune checkpoint molecules are the antigen-independent generator of secondary signals that aid in maintaining the homeostasis of the immune system. The programmed death ligand-1 (PD-L1)/PD-1 axis is one among the most extensively studied immune-inhibitory checkpoint molecules, which delivers a negative signal for T cell activation by binding to the PD-1 receptor. The general attributes of PD-L1's immune-suppressive qualities and novel mechanisms on the barrier functions of vascular endothelium to regulate blood vessel-related inflammatory diseases are concisely reviewed. Though targeting the PD-1/PD-L1 axis has received immense recognition-the Nobel Prize in clinical oncology was awarded in the year 2018 for this discovery-the use of therapeutic modulating strategies for the PD-L1/PD-1 pathway in chronic inflammatory blood vessel diseases is still limited to experimental models. However, studies using clinical specimens that support the role of PD-1 and PD-L1 in patients with underlying atherosclerosis are also detailed. Of note, delicate balances in the expression levels of PD-L1 that are needed to preserve T cell immunity and to curtail acute as well as chronic infections in underlying blood vessel diseases are discussed. A significant link exists between altered lipid and glucose metabolism in different cells and the expression of PD-1/PD-L1 molecules, and its possible implications on vascular inflammation are justified. This review summarizes the most recent insights concerning the role of the PD-L1/PD-1 axis in vascular inflammation and, in addition, provides an overview exploring the novel therapeutic approaches and challenges of manipulating these immune checkpoint proteins, PD-1 and PD-L1, for suppressing blood vessel inflammation.
Collapse
|
12
|
Spatial and Temporal Changes in PD-L1 Expression in Cancer: The Role of Genetic Drivers, Tumor Microenvironment and Resistance to Therapy. Int J Mol Sci 2020; 21:ijms21197139. [PMID: 32992658 PMCID: PMC7583014 DOI: 10.3390/ijms21197139] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 09/18/2020] [Accepted: 09/24/2020] [Indexed: 12/14/2022] Open
Abstract
Immunotherapies blocking immune inhibitory receptors programmed cell death-1 (PD-1) and cytotoxic T-lymphocyte-associated protein-4 (CTLA-4) on T-cells have dramatically improved patient outcomes in a range of advanced cancers. However, the lack of response, and the development of resistance remain major obstacles to long-term improvements in patient outcomes. There is significant interest in the clinical use of biomarkers to improve patient selection, and the expression of PD-1 ligand 1 (PD-L1) is often reported as a potential biomarker of response. However, accumulating evidence suggests that the predictive value of PD-L1 expression in tumor biopsies is relatively low due, in part, to its complex biology. In this review, we discuss the biological consequences of PD-L1 expression by various cell types within the tumor microenvironment, and the complex mechanisms that regulate PD-L1 expression at the genomic, transcriptomic and proteomic levels.
Collapse
|
13
|
anlotinib alters tumor immune microenvironment by downregulating PD-L1 expression on vascular endothelial cells. Cell Death Dis 2020; 11:309. [PMID: 32366856 PMCID: PMC7198575 DOI: 10.1038/s41419-020-2511-3] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 04/16/2020] [Accepted: 04/17/2020] [Indexed: 12/17/2022]
Abstract
Aberrant vascular network is a hallmark of cancer. However, the role of vascular endothelial cells (VECs)-expressing PD-L1 in tumor immune microenvironment and antiangiogenic therapy remains unclear. In this study, we used the specimens of cancer patients for immunohistochemical staining to observe the number of PD-L1+ CD34+ VECs and infiltrated immune cells inside tumor specimens. Immunofluorescence staining and flow cytometry were performed to observe the infiltration of CD8+ T cells and FoxP3+ T cells in tumor tissues. Here, we found that PD-L1 expression on VECs determined CD8+ T cells’, FoxP3+ T cells’ infiltration, and the prognosis of patients with lung adenocarcinoma. Anlotinib downregulated PD-L1 expression on VECs through the inactivation of AKT pathway, thereby improving the ratio of CD8/FoxP3 inside tumor and remolding the immune microenvironment. In conclusion, our results demonstrate that PD-L1 high expression on VECs inhibits the infiltration of CD8+ T cells, whereas promotes the aggregation of FoxP3+ T cells into tumor tissues, thus becoming an “immunosuppressive barrier”. Anlotinib can ameliorate the immuno-microenvironment by downregulating PD-L1 expression on VECs to inhibit tumor growth.
Collapse
|
14
|
Histone Deacetylation Inhibitors as Modulators of Regulatory T Cells. Int J Mol Sci 2020; 21:ijms21072356. [PMID: 32235291 PMCID: PMC7177531 DOI: 10.3390/ijms21072356] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/12/2020] [Accepted: 03/26/2020] [Indexed: 02/07/2023] Open
Abstract
Regulatory T cells (Tregs) are important mediators of immunological self-tolerance and homeostasis. Being cluster of differentiation 4+Forkhead box protein3+ (CD4+FOXP3+), these cells are a subset of CD4+ T lymphocytes and can originate from the thymus (tTregs) or from the periphery (pTregs). The malfunction of CD4+ Tregs is associated with autoimmune responses such as rheumatoid arthritis (RA), multiple sclerosis (MS), type 1 diabetes (T1D), inflammatory bowel diseases (IBD), psoriasis, systemic lupus erythematosus (SLE), and transplant rejection. Recent evidence supports an opposed role in sepsis. Therefore, maintaining functional Tregs is considered as a therapy regimen to prevent autoimmunity and allograft rejection, whereas blocking Treg differentiation might be favorable in sepsis patients. It has been shown that Tregs can be generated from conventional naïve T cells, called iTregs, due to their induced differentiation. Moreover, Tregs can be effectively expanded in vitro based on blood-derived tTregs. Taking into consideration that the suppressive role of Tregs has been mainly attributed to the expression and function of the transcription factor Foxp3, modulating its expression and binding to the promoter regions of target genes by altering the chromatin histone acetylation state may turn out beneficial. Hence, we discuss the role of histone deacetylation inhibitors as epigenetic modulators of Tregs in this review in detail.
Collapse
|
15
|
Song M, Xu S, Zhong A, Zhang J. Crosstalk between macrophage and T cell in atherosclerosis: Potential therapeutic targets for cardiovascular diseases. Clin Immunol 2019; 202:11-17. [DOI: 10.1016/j.clim.2019.03.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 12/03/2018] [Accepted: 03/01/2019] [Indexed: 01/05/2023]
|
16
|
Activation of PD-1 Protects Intestinal Immune Defense Through IL-10/miR-155 Pathway After Intestinal Ischemia Reperfusion. Dig Dis Sci 2018; 63:3307-3316. [PMID: 30206757 DOI: 10.1007/s10620-018-5282-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 09/08/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND To date, mechanisms of intestinal immunoglobulin (Ig) dysfunction following intestinal ischemia/reperfusion (I/R) remain unclear. Programmed death 1 (PD-1) is associated with immune responses of lymphocytes. AIM We aimed to verify the hypothesis that activation of PD-1 may improve intestinal immune dysfunction by regulating IL-10/miR-155 production after intestinal IR injury. METHODS Intestinal I/R injury was induced in mice by clamping the superior mesenteric artery for 1 h followed by 2-h reperfusion. PD-L1 fusion Ig, anti-interleukin (IL)-10 monoclonal antibody (mAb), and microRNA (miR)-155 agomir were administered. PD-1 expression, IL-10 mRNA, and protein expression in Peyer's patches (PP) CD4+ cells were measured. MiR-155 levels, tumor necrosis factor (TNF)-α and IL-1β concentration, and activation-induced cytidine deaminase (AID), a key enzyme for intestinal immune antibodies, in PP tissues were measured, respectively. Importantly, the production and cecal bacteria-binding capacity of IgA and IgM were detected. RESULTS Intestinal I/R led to decreased PD-1 expression, imbalanced production, and impaired bacteria-binding capacity of IgA and IgM. Activating PD-1 by PD-L1 Ig facilitated IL-10 synthesis, then decreased miR-155 levels, and subsequently promoted AID expression and reduced TNF-α, IL-1β concentration. Upregulation of AID improved the disruptions of intestinal immune barrier caused by IgA and IgM dysfunction. Anti-IL-10 mAb and miR-155 agomir abolished the protective effects of PD-L1 Ig on the intestinal immune defense. CONCLUSION Activation of PD-1 with PD-L1 Ig relieves intestinal immune defensive injury through IL-10/miR-155 pathway following intestinal I/R attack. PD-1, IL-10, and miR-155 may be potential targets for the damages of intestinal barrier and immunity.
Collapse
|
17
|
Hu X, Leak RK, Thomson AW, Yu F, Xia Y, Wechsler LR, Chen J. Promises and limitations of immune cell-based therapies in neurological disorders. Nat Rev Neurol 2018; 14:559-568. [PMID: 29925925 PMCID: PMC6237550 DOI: 10.1038/s41582-018-0028-5] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The healthy immune system has natural checkpoints that temper pernicious inflammation. Cells mediating these checkpoints include regulatory T cells, regulatory B cells, regulatory dendritic cells, microglia, macrophages and monocytes. Here, we highlight discoveries on the beneficial functions of regulatory immune cells and their mechanisms of action and evaluate their potential use as novel cell-based therapies for brain disorders. Regulatory immune cell therapies have the potential not only to mitigate the exacerbation of brain injury by inflammation but also to promote an active post-injury brain repair programme. By harnessing the reparative properties of these cells, we can reduce over-reliance on medications that mask clinical symptoms but fail to impede or reverse the progression of brain disorders. Although these discoveries encourage further testing and genetic engineering of regulatory immune cells for the clinical management of neurological disorders, a number of challenges must be surmounted to improve their safety and efficacy in humans.
Collapse
Affiliation(s)
- Xiaoming Hu
- Pittsburgh Institute of Brain Disorders and Recovery and Department of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Rehana K Leak
- Division of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA, USA
| | - Angus W Thomson
- Starzl Transplantation Institute, Department of Surgery and Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Fang Yu
- Pittsburgh Institute of Brain Disorders and Recovery and Department of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Yuguo Xia
- Pittsburgh Institute of Brain Disorders and Recovery and Department of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Lawrence R Wechsler
- Pittsburgh Institute of Brain Disorders and Recovery and Department of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Jun Chen
- Pittsburgh Institute of Brain Disorders and Recovery and Department of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
| |
Collapse
|
18
|
Vascular peroxide 1 promotes ox-LDL-induced programmed necrosis in endothelial cells through a mechanism involving β-catenin signaling. Atherosclerosis 2018; 274:128-138. [DOI: 10.1016/j.atherosclerosis.2018.04.031] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 04/17/2018] [Accepted: 04/25/2018] [Indexed: 12/20/2022]
|
19
|
Lim WC, Olding M, Healy E, Millar TM. Human Endothelial Cells Modulate CD4 + T Cell Populations and Enhance Regulatory T Cell Suppressive Capacity. Front Immunol 2018; 9:565. [PMID: 29628925 PMCID: PMC5876242 DOI: 10.3389/fimmu.2018.00565] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Accepted: 03/06/2018] [Indexed: 01/09/2023] Open
Abstract
Endothelial cells (ECs) line the luminal surface of blood vessels and have an active role in the recruitment of leukocytes, including immune cell activation. Regulatory T cells (Tregs) are immune suppressor cells that maintain peripheral tolerance and must interact with the endothelium as they traffic into tissue. We hypothesized that human ECs could modulate Tregs and their suppressor function. Cocultures of CD4+ T cells with human umbilical vein ECs (HUVECs) or dermal microvascular ECs (HDMECs) were conducted and analyzed for activation and proliferation after 72 and 120 h using flow cytometry. In monocyte-depleted cultures, human ECs were found to support CD4+ T cell proliferation in the presence of external mitogens phytohemagglutinin or anti-CD3/28 antibodies (aCD3/28). Activation was shown by CD25 expression in these cells that also transiently expressed the Treg transcription factor FOXP3. HUVECs supported the specific concurrent proliferation of both effector T cells and Tregs when cocultured with aCD3/28. Purified Tregs were also functionally activated by prior coculture with EC to suppress effector T (Teff) cell proliferation. Both direct coculture and indirect coculture of EC and Treg showed activation of the Treg suppressive phenotype. However, whereas HUVEC showed enhancement of suppression by both mechanisms, HDMEC only supported Treg suppressive activity via the contact-independent mechanism. In the contact-independent cultures, the soluble mediators IL-6, GM-CSF, or G-CSF released from ECs following interferon-γ activation were not responsible for the enhanced Treg suppressor function. Following direct coculture, Treg expression of inhibitory receptors PD-1 and OX40 was elevated while activated EC expressed the counter ligands programmed death ligand (PD-L)1 and PD-L2. Therefore, human ECs have a role in supporting T cell proliferation and increasing Treg suppressor function. This ability of EC to enhance Treg function could offer novel targets to boost Treg activity during inflammatory disorders.
Collapse
Affiliation(s)
- Wen Chean Lim
- Dermatopharmacology, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Michael Olding
- Dermatopharmacology, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Eugene Healy
- Dermatopharmacology, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom.,Dermatology, University Hospital Southampton NHS Foundation Trust, Southampton, United Kingdom
| | - Timothy M Millar
- Dermatopharmacology, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| |
Collapse
|
20
|
Vahl JM, Friedrich J, Mittler S, Trump S, Heim L, Kachler K, Balabko L, Fuhrich N, Geppert CI, Trufa DI, Sopel N, Rieker R, Sirbu H, Finotto S. Interleukin-10-regulated tumour tolerance in non-small cell lung cancer. Br J Cancer 2017; 117:1644-1655. [PMID: 29016555 PMCID: PMC5729436 DOI: 10.1038/bjc.2017.336] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 08/03/2017] [Accepted: 08/30/2017] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Lung cancer is the most life-threatening cancer type worldwide. Treatment options include surgery, radio- and chemotherapy, as well as the use of immunomodulatory antibodies. Interleukin (IL)-10 is an immunosuppressive cytokine involved in tumour immune escape. METHODS Immunohistochemistry (IHC) on human lung surgery tissue as well as human tumour cell line cultures, FACS analysis, real-time PCR and experimental lung cancer. RESULTS Here we discovered a positive correlation between IL-10 and IL-10 receptor (IL-10R) expression in the lung with tumour diameter in patients with lung cancer (non-small cell lung cancer), the most life-threatening cancer type worldwide. IL-10 and IL-10R were found induced in cells surrounding the lung tumour cells, and IL-10R was mainly expressed on the surface of Foxp-3+ T-regulatory lymphocytes infiltrating the tumour of these patients where its expression inversely correlated with programmed cell death 1. These findings were confirmed in translational studies. In a human lung adenocarcinoma cell line, IL-10R was found induced under metabolic restrictions present during tumour growth, whereby IL-10 inhibited PDL1 and tumour cell apoptosis. CONCLUSIONS These new findings suggest that IL-10 counteracts IFN-γ effects on PD1/PDL1 pathway, resulting in possible resistance of the tumour to anti-PD1/PDL1 immunotherapy.
Collapse
Affiliation(s)
- Julius Malte Vahl
- Laboratory of Cellular and Molecular Lung Immunology, Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Hartmannstraβe 14, Erlangen 91052, Germany
| | - Juliane Friedrich
- Laboratory of Cellular and Molecular Lung Immunology, Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Hartmannstraβe 14, Erlangen 91052, Germany
| | - Susanne Mittler
- Laboratory of Cellular and Molecular Lung Immunology, Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Hartmannstraβe 14, Erlangen 91052, Germany
| | - Sonja Trump
- Laboratory of Cellular and Molecular Lung Immunology, Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Hartmannstraβe 14, Erlangen 91052, Germany
| | - Lisanne Heim
- Laboratory of Cellular and Molecular Lung Immunology, Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Hartmannstraβe 14, Erlangen 91052, Germany
| | - Katerina Kachler
- Laboratory of Cellular and Molecular Lung Immunology, Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Hartmannstraβe 14, Erlangen 91052, Germany
| | - Liubov Balabko
- Laboratory of Cellular and Molecular Lung Immunology, Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Hartmannstraβe 14, Erlangen 91052, Germany
| | - Nicole Fuhrich
- Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Krankenhausstraβe 8-10, Erlangen 91054, Germany
| | - Carol-Immanuel Geppert
- Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Krankenhausstraβe 8-10, Erlangen 91054, Germany
| | - Denis Iulian Trufa
- Department of Thoracic Surgery, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Krankenhausstraβe 12, Erlangen 91054, Germany
| | - Nina Sopel
- Laboratory of Cellular and Molecular Lung Immunology, Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Hartmannstraβe 14, Erlangen 91052, Germany
| | - Ralf Rieker
- Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Krankenhausstraβe 8-10, Erlangen 91054, Germany
| | - Horia Sirbu
- Department of Thoracic Surgery, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Krankenhausstraβe 12, Erlangen 91054, Germany
| | - Susetta Finotto
- Laboratory of Cellular and Molecular Lung Immunology, Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Hartmannstraβe 14, Erlangen 91052, Germany
| |
Collapse
|
21
|
Ley K, Gerdes N, Winkels H. ATVB Distinguished Scientist Award: How Costimulatory and Coinhibitory Pathways Shape Atherosclerosis. Arterioscler Thromb Vasc Biol 2017; 37:764-777. [PMID: 28360089 PMCID: PMC5424816 DOI: 10.1161/atvbaha.117.308611] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 03/20/2017] [Indexed: 12/17/2022]
Abstract
OBJECTIVE Immune cells play a critical role in atherosclerosis. Costimulatory and coinhibitory molecules of the tumor necrosis factor receptor and CD28 immunoglobulin superfamilies not only shape T-cell and B-cell responses but also have a major effect on antigen-presenting cells and nonimmune cells. APPROACH AND RESULTS Pharmacological inhibition or activation of costimulatory and coinhibitory molecules and genetic deletion demonstrated their involvement in atherosclerosis. This review highlights recent advances in understanding how costimulatory and coinhibitory pathways shape the immune response in atherosclerosis. CONCLUSIONS Insights gained from costimulatory and coinhibitory molecule function in atherosclerosis may inform future therapeutic approaches.
Collapse
Affiliation(s)
- Klaus Ley
- From the Division of Inflammation Biology, La Jolla Institute for Allergy & Immunology, CA (K.L., H.W.); Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, University Hospital Düsseldorf, Germany (N.G.); and Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-University (LMU), Munich, Germany (N.G.).
| | - Norbert Gerdes
- From the Division of Inflammation Biology, La Jolla Institute for Allergy & Immunology, CA (K.L., H.W.); Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, University Hospital Düsseldorf, Germany (N.G.); and Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-University (LMU), Munich, Germany (N.G.)
| | - Holger Winkels
- From the Division of Inflammation Biology, La Jolla Institute for Allergy & Immunology, CA (K.L., H.W.); Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, University Hospital Düsseldorf, Germany (N.G.); and Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-University (LMU), Munich, Germany (N.G.)
| |
Collapse
|
22
|
Talepoor AG, Behnamfar N, Zibaeenezhad MJ, Doroudchi M. IL-17 producing CD4+CD45RO+ T-cells in atherosclerosis express GITR molecule. Artery Res 2017. [DOI: 10.1016/j.artres.2017.12.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
|