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Chen X, Mo X, Zhang Y, He D, Xiao R, Cheng Q, Wang H, Liu L, Li WW, Xie P. A comprehensive analysis of the differential expression in the hippocampus of depression induced by gut microbiota compared to traditional stress. Gene 2024; 927:148633. [PMID: 38838871 DOI: 10.1016/j.gene.2024.148633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 05/22/2024] [Accepted: 05/30/2024] [Indexed: 06/07/2024]
Abstract
Depression, which is a disease of heterogeneous etiology, is characterized by high disability and mortality rates. Gut microbiota are associated with the development of depression. To further explore any differences in the mechanisms of depression induced by gut microbiota and traditional stresses, as well as facilitate the development of microbiota-based interventions, a fecal microbiota transplantation (FMT) depression model was made. This was achieved by transplanting feces from major depressive disorder (MDD) patients into germ-free mice. Second, the mechanisms of the depression induced by gut microbiota were analyzed in comparison with those of the depression caused by different forms of stress. It turned out that mice exhibited depressive-like behavior after FMT. Then, PCR array analysis was performed on the hippocampus of the depressed mice to identify differentially expressed genes (DEGs). The KEGG analysis revealed that the pathways of depression induced by gut microbes are closely associated with immuno-inflammation. To determine the pathogenic pathways of physiological stress and psychological stress-induced depression, raw data was extracted from several databases and KEGG analysis was performed. The results from the analysis revealed that the mechanisms of depression induced by physiological and psychological stress are closely related to the regulation of neurotransmitters and energy metabolism. Interestingly, the immunoinflammatory response was distinct across different etiologies that induced depression. The findings showed that gut microbiota dysbiosis-induced depression was mainly associated with adaptive immunity, while physiological stress-induced depression was more linked to innate immunity. This study compared the pathogenesis of depression caused by gut microbiota dysbiosis, and physiological and psychological stress. We explored new intervention methods for depression and laid the foundation for precise treatment.
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Affiliation(s)
- Xueyi Chen
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; School of Basic Medical Sciences, Department of Pathology, Chongqing Medical University, Chongqing 400016, China
| | - Xiaolong Mo
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Yangdong Zhang
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Dian He
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Rui Xiao
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; School of Basic Medical Sciences, Department of Pathology, Chongqing Medical University, Chongqing 400016, China
| | - Qisheng Cheng
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Haiyang Wang
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Lanxiang Liu
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Department of Neurology, Yongchuan Hospital of Chongqing Medical University, Chongqing 402160, China
| | - Wen-Wen Li
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; School of Basic Medical Sciences, Department of Pathology, Chongqing Medical University, Chongqing 400016, China; Molecular Medicine Diagnostic and Testing Center, Chongqing Medical University, Chongqing 400016, China; Department of Pathology, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Peng Xie
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Department of Neurology, Yongchuan Hospital of Chongqing Medical University, Chongqing 402160, China.
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Su C, Kent CL, Pierpoint M, Floyd W, Luo L, Williams NT, Ma Y, Peng B, Lazarides AL, Subramanian A, Himes JE, Perez VM, Hernansaiz-Ballesteros RD, Roche KE, Modliszewski JL, Selitsky SR, Shinohara ML, Wisdom AJ, Moding EJ, Mowery YM, Kirsch DG. Enhancing radiotherapy response via intratumoral injection of a TLR9 agonist in autochthonous murine sarcomas. JCI Insight 2024; 9:e178767. [PMID: 39133651 DOI: 10.1172/jci.insight.178767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 06/11/2024] [Indexed: 08/21/2024] Open
Abstract
Radiation therapy (RT) is frequently used to treat cancers, including soft-tissue sarcomas. Prior studies established that the toll-like receptor 9 (TLR9) agonist cytosine-phosphate-guanine oligodeoxynucleotide (CpG) enhances the response to RT in transplanted tumors, but the mechanisms of this enhancement remain unclear. Here, we used CRISPR/Cas9 and the chemical carcinogen 3-methylcholanthrene (MCA) to generate autochthonous soft-tissue sarcomas with high tumor mutation burden. Treatment with a single fraction of 20 Gy RT and 2 doses of CpG significantly enhanced tumor response, which was abrogated by genetic or immunodepletion of CD8+ T cells. To characterize the immune response to CpG+RT, we performed bulk RNA-Seq, single-cell RNA-Seq, and mass cytometry. Sarcomas treated with 20 Gy and CpG demonstrated increased CD8 T cells expressing markers associated with activation and proliferation, such as Granzyme B, Ki-67, and IFN-γ. CpG+RT also upregulated antigen presentation pathways on myeloid cells. Furthermore, in sarcomas treated with CpG+RT, TCR clonality analysis suggests an increase in clonal T cell dominance. Collectively, these findings demonstrate that CpG+RT significantly delays tumor growth in a CD8 T cell-dependent manner. These results provide a strong rationale for clinical trials evaluating CpG or other TLR9 agonists with RT in patients with soft-tissue sarcoma.
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Affiliation(s)
- Chang Su
- Department of Pharmacology and Cancer Biology and
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina, USA
| | - Collin L Kent
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina, USA
| | - Matthew Pierpoint
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina, USA
| | - Warren Floyd
- Department of Radiation Oncology, MD Anderson Cancer Center, Houston, Texas, USA
| | - Lixia Luo
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina, USA
| | - Nerissa T Williams
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina, USA
| | - Yan Ma
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina, USA
| | - Brian Peng
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina, USA
| | - Alexander L Lazarides
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina, USA
| | - Ajay Subramanian
- Department of Radiation Oncology, Stanford University, Stanford, California, USA
| | - Jonathon E Himes
- Department of Pharmacology and Cancer Biology and
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina, USA
| | | | | | - Kimberly E Roche
- Tempus AI Inc., Durham, North Carolina, USA
- QuantBio LLC, Durham, North Carolina, USA
| | - Jennifer L Modliszewski
- QuantBio LLC, Durham, North Carolina, USA
- Lineberger Comprehensive Cancer Center, Chapel Hill, North Carolina, USA
| | - Sara R Selitsky
- Tempus AI Inc., Durham, North Carolina, USA
- QuantBio LLC, Durham, North Carolina, USA
| | - Mari L Shinohara
- Department of Integrative Immunology
- Department of Molecular Genetics and Microbiology, and
- Department of Neurobiology, Duke University School of Medicine, Durham, North Carolina, USA
| | - Amy J Wisdom
- Harvard Radiation Oncology Program, Boston, Massachusetts, USA
| | - Everett J Moding
- Department of Radiation Oncology, Stanford University, Stanford, California, USA
- Stanford Cancer Institute, Stanford University, Stanford, California, USA
| | - Yvonne M Mowery
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina, USA
- Department of Radiation Oncology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - David G Kirsch
- Department of Pharmacology and Cancer Biology and
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina, USA
- Department of Radiation Oncology and
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
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3
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Moore KH, Erman EN, Traylor AM, Esman SK, Jiang Y, LaFontaine JR, Zmijewska A, Lu Y, Soliman RH, Agarwal A, George JF. Cognate antigen-independent differentiation of resident memory T cells in chronic kidney disease. Am J Physiol Renal Physiol 2024; 326:F839-F854. [PMID: 38450434 DOI: 10.1152/ajprenal.00373.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 02/09/2024] [Accepted: 03/01/2024] [Indexed: 03/08/2024] Open
Abstract
Resident memory T cells (TRMs), which are memory T cells that are retained locally within tissues, have recently been described as antigen-specific frontline defenders against pathogens in barrier and nonbarrier epithelial tissues. They have also been noted for perpetuating chronic inflammation. The conditions responsible for TRM differentiation are still poorly understood, and their contributions, if any, to sterile models of chronic kidney disease (CKD) remain a mystery. In this study, we subjected male C57BL/6J mice and OT-1 transgenic mice to five consecutive days of 2 mg/kg aristolochic acid (AA) injections intraperitoneally to induce CKD or saline injections as a control. We evaluated their kidney immune profiles at 2 wk, 6 wk, and 6 mo after treatment. We identified a substantial population of TRMs in the kidneys of mice with AA-induced CKD. Flow cytometry of injured kidneys showed T cells bearing TRM surface markers and single-cell (sc) RNA sequencing revealed these cells as expressing well-known TRM transcription factors and receptors responsible for TRM differentiation and maintenance. Although kidney TRMs expressed Cd44, a marker of antigen experience and T cell activation, their derivation was independent of cognate antigen-T cell receptor interactions, as the kidneys of transgenic OT-1 mice still harbored considerable proportions of TRMs after injury. Our results suggest a nonantigen-specific or antigen-independent mechanism capable of generating TRMs in the kidney and highlight the need to better understand TRMs and their involvement in CKD.NEW & NOTEWORTHY Resident memory T cells (TRMs) differentiate and are retained within the kidneys of mice with aristolochic acid (AA)-induced chronic kidney disease (CKD). Here, we characterized this kidney TRM population and demonstrated TRM derivation in the kidneys of OT-1 transgenic mice with AA-induced CKD. A better understanding of TRMs and the processes by which they can differentiate independent of antigen may help our understanding of the interactions between the immune system and kidneys.
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Affiliation(s)
- Kyle H Moore
- Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States
- Nephrology Research and Training Center, University of Alabama at Birmingham, Birmingham, Alabama, United States
- Division of Cardiothoracic Surgery, Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama, United States
| | - Elise N Erman
- Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States
- Division of Cardiothoracic Surgery, Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama, United States
| | - Amie M Traylor
- Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States
| | - Stephanie K Esman
- Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States
| | - Yanlin Jiang
- Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States
| | - Jennifer R LaFontaine
- Division of Cardiothoracic Surgery, Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama, United States
| | - Anna Zmijewska
- Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States
| | - Yan Lu
- Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States
| | - Reham H Soliman
- Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States
| | - Anupam Agarwal
- Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States
| | - James F George
- Division of Cardiothoracic Surgery, Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama, United States
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Huang Y, Chen X, Liu X, Lin C, Wang Y. The coumarin component isofraxidin targets the G-protein-coupled receptor S1PR1 to modulate IL-17 signaling and alleviate ulcerative colitis. Int Immunopharmacol 2024; 131:111814. [PMID: 38479159 DOI: 10.1016/j.intimp.2024.111814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 02/07/2024] [Accepted: 03/05/2024] [Indexed: 04/10/2024]
Abstract
OBJECTIVE The increasing global prevalence of ulcerative colitis (UC) underscores the imperative to explore novel therapeutic approaches. Traditional Chinese medicine has historically shown potential in addressing this ailment. The current study aimed to elucidate the functional attributes and underlying mechanisms of isofraxidin, a coumarin derivative from Acanthopanax, in the context of UC. METHODS A murine model of dextran sodium sulfate (DSS)-induced UC was established, and we conducted a comprehensive assessment of the influence of isofraxidin on UC symptomatology, colonic histopathological manifestations, the inflammatory response, and apoptosis. The potential receptor of isofraxidin was initially identified through the Target database and molecular docking analysis. Subsequent in vivo and in vitro experiments were conducted to determine the effects of isofraxidin on the identified receptor and associated signaling pathways. Transfection was used to examine the receptor's role in the regulatory mechanism of isofraxidin. RESULTS Isofraxidin reduced UC symptoms and colonic histopathological impairments. Furthermore, isofraxidin ameliorated the DSS-induced inflammatory response and apoptosis in tissues. S1PR1 was identified as a target of isofraxidin and effectively suppressed activation of the IL-17 signaling pathway. Intriguingly, cellular experiments indicated that overexpression of S1PR1 counteracted the protective effect of isofraxidin. DISCUSSION In summary, our investigation revealed that isofraxidin could modulate S1PR1 and regulate the IL-17 signaling pathway, thus ameliorating DSS-induced UC. These findings establish a robust foundation for considering isofraxidin as a prospective therapeutic intervention to treat UC.
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Affiliation(s)
- Yisen Huang
- Department of Gastroenterology, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Xiangbo Chen
- Digestive Endoscopy Center, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Xiaoqiang Liu
- Department of Gastroenterology, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Chanchan Lin
- Department of Gastroenterology, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Yubin Wang
- Department of Gastroenterology, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, Fujian 362000, China.
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Fukushima H, Furusawa A, Takao S, Matikonda SS, Kano M, Okuyama S, Yamamoto H, Choyke PL, Schnermann MJ, Kobayashi H. Phototruncation cell tracking with near-infrared photoimmunotherapy using heptamethine cyanine dye to visualise migratory dynamics of immune cells. EBioMedicine 2024; 102:105050. [PMID: 38490105 PMCID: PMC10951901 DOI: 10.1016/j.ebiom.2024.105050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 01/27/2024] [Accepted: 02/22/2024] [Indexed: 03/17/2024] Open
Abstract
BACKGROUND Noninvasive in vivo cell tracking is valuable in understanding the mechanisms that enhance anti-cancer immunity. We have recently developed a new method called phototruncation-assisted cell tracking (PACT), that uses photoconvertible cell tracking technology to detect in vivo cell migration. This method has the advantages of not requiring genetic engineering of cells and employing tissue-penetrant near-infrared light. METHODS We applied PACT to monitor the migration of immune cells between a tumour and its tumour-draining lymph node (TDLN) after near-infrared photoimmunotherapy (NIR-PIT). FINDINGS PACT showed a significant increase in the migration of dendritic cells (DCs) and macrophages from the tumour to the TDLN immediately after NIR-PIT. This migration by NIR-PIT was abrogated by inhibiting the sphingosine-1-phosphate pathway or Gαi signaling. These results were corroborated by intranodal immune cell profiles at two days post-treatment; NIR-PIT significantly induced DC maturation and increased and activated the CD8+ T cell population in the TDLN. Furthermore, PACT revealed that NIR-PIT significantly enhanced the migration of CD8+ T cells from the TDLN to the tumour four days post-treatment, which was consistent with the immunohistochemical assessment of tumour-infiltrating lymphocytes and tumour regression. INTERPRETATION Immune cells dramatically migrated between the tumour and TDLN following NIR-PIT, indicating its potential as an immune-stimulating therapy. Also, PACT is potentially applicable to a wide range of immunological research. FUNDING This work was supported by the Intramural Research Program of the National Institutes of Health, National Cancer Institute, Centre for Cancer Research (grant number: ZIA BC011513 and ZIA BC011506).
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Affiliation(s)
- Hiroshi Fukushima
- Molecular Imaging Branch, Centre for Cancer Research, National Cancer Institute, NIH, Bethesda, MD, 20892, USA
| | - Aki Furusawa
- Molecular Imaging Branch, Centre for Cancer Research, National Cancer Institute, NIH, Bethesda, MD, 20892, USA
| | - Seiichiro Takao
- Molecular Imaging Branch, Centre for Cancer Research, National Cancer Institute, NIH, Bethesda, MD, 20892, USA
| | - Siddharth S Matikonda
- Chemical Biology Laboratory, Centre for Cancer Research, National Cancer Institute, NIH, Frederick, MD, 21702, USA
| | - Makoto Kano
- Molecular Imaging Branch, Centre for Cancer Research, National Cancer Institute, NIH, Bethesda, MD, 20892, USA
| | - Shuhei Okuyama
- Molecular Imaging Branch, Centre for Cancer Research, National Cancer Institute, NIH, Bethesda, MD, 20892, USA
| | - Hiroshi Yamamoto
- Molecular Imaging Branch, Centre for Cancer Research, National Cancer Institute, NIH, Bethesda, MD, 20892, USA
| | - Peter L Choyke
- Molecular Imaging Branch, Centre for Cancer Research, National Cancer Institute, NIH, Bethesda, MD, 20892, USA
| | - Martin J Schnermann
- Chemical Biology Laboratory, Centre for Cancer Research, National Cancer Institute, NIH, Frederick, MD, 21702, USA
| | - Hisataka Kobayashi
- Molecular Imaging Branch, Centre for Cancer Research, National Cancer Institute, NIH, Bethesda, MD, 20892, USA.
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Spertini C, Bénéchet AP, Birch F, Bellotti A, Román-Trufero M, Arber C, Auner HW, Mitchell RA, Spertini O, Smirnova T. Macrophage migration inhibitory factor blockade reprograms macrophages and disrupts prosurvival signaling in acute myeloid leukemia. Cell Death Discov 2024; 10:157. [PMID: 38548753 PMCID: PMC10978870 DOI: 10.1038/s41420-024-01924-5] [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: 09/29/2023] [Revised: 03/14/2024] [Accepted: 03/19/2024] [Indexed: 04/01/2024] Open
Abstract
The malignant microenvironment plays a major role in the development of resistance to therapies and the occurrence of relapses in acute myeloid leukemia (AML). We previously showed that interactions of AML blasts with bone marrow macrophages (MΦ) shift their polarization towards a protumoral (M2-like) phenotype, promoting drug resistance; we demonstrated that inhibiting the colony-stimulating factor-1 receptor (CSF1R) repolarizes MΦ towards an antitumoral (M1-like) phenotype and that other factors may be involved. We investigated here macrophage migration inhibitory factor (MIF) as a target in AML blast survival and protumoral interactions with MΦ. We show that pharmacologically inhibiting MIF secreted by AML blasts results in their apoptosis. However, this effect is abrogated when blasts are co-cultured in close contact with M2-like MΦ. We next demonstrate that pharmacological inhibition of MIF secreted by MΦ, in the presence of granulocyte macrophage-colony stimulating factor (GM-CSF), efficiently reprograms MΦ to an M1-like phenotype that triggers apoptosis of interacting blasts. Furthermore, contact with reprogrammed MΦ relieves blast resistance to venetoclax and midostaurin acquired in contact with CD163+ protumoral MΦ. Using intravital imaging in mice, we also show that treatment with MIF inhibitor 4-IPP and GM-CSF profoundly affects the tumor microenvironment in vivo: it strikingly inhibits tumor vasculature, reduces protumoral MΦ, and slows down leukemia progression. Thus, our data demonstrate that MIF plays a crucial role in AML MΦ M2-like protumoral phenotype that can be reversed by inhibiting its activity and suggest the therapeutic targeting of MIF as an avenue towards improved AML treatment outcomes.
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Affiliation(s)
- Caroline Spertini
- Service and Central Laboratory of Hematology, Lausanne University Hospital (CHUV), 1011, Lausanne, Switzerland
| | - Alexandre P Bénéchet
- In Vivo Imaging Facility (IVIF), Department of Research and Training, Lausanne University Hospital and University of Lausanne, Lausanne, 1011, Switzerland
| | - Flora Birch
- Department of oncology UNIL-CHUV, Lausanne University Hospital (CHUV), University of Lausanne (UNIL), 1011, Lausanne, Switzerland
- Ludwig Institute for Cancer Research Lausanne, 1015, Lausanne, Switzerland
| | - Axel Bellotti
- Service and Central Laboratory of Hematology, Lausanne University Hospital (CHUV), 1011, Lausanne, Switzerland
| | - Mónica Román-Trufero
- Service and Central Laboratory of Hematology, Lausanne University Hospital (CHUV), 1011, Lausanne, Switzerland
| | - Caroline Arber
- Service and Central Laboratory of Hematology, Lausanne University Hospital (CHUV), 1011, Lausanne, Switzerland
- Department of oncology UNIL-CHUV, Lausanne University Hospital (CHUV), University of Lausanne (UNIL), 1011, Lausanne, Switzerland
- Ludwig Institute for Cancer Research Lausanne, 1015, Lausanne, Switzerland
- Faculty of Biology and Medicine, University of Lausanne, 1011, Lausanne, Switzerland
- Service of Immuno-oncology, Lausanne University Hospital (CHUV), 1011, Lausanne, Switzerland
| | - Holger W Auner
- Service and Central Laboratory of Hematology, Lausanne University Hospital (CHUV), 1011, Lausanne, Switzerland
- Faculty of Biology and Medicine, University of Lausanne, 1011, Lausanne, Switzerland
| | - Robert A Mitchell
- Department of Surgery, Division of Immunotherapy, University of Louisville, Louisville, KY, 40202, USA
| | - Olivier Spertini
- Faculty of Biology and Medicine, University of Lausanne, 1011, Lausanne, Switzerland
| | - Tatiana Smirnova
- Service and Central Laboratory of Hematology, Lausanne University Hospital (CHUV), 1011, Lausanne, Switzerland.
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7
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Maymí VI, Zhu H, Jager M, Johnson S, Getchell R, Casey JW, Grenier JK, Wherry EJ, Smith NL, Grimson A, Rudd BD. Neonatal CD8+ T Cells Resist Exhaustion during Chronic Infection. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 212:834-843. [PMID: 38231127 PMCID: PMC11298781 DOI: 10.4049/jimmunol.2300396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 01/01/2024] [Indexed: 01/18/2024]
Abstract
Chronic viral infections, such as HIV and hepatitis C virus, represent a major public health problem. Although it is well understood that neonates and adults respond differently to chronic viral infections, the underlying mechanisms remain unknown. In this study, we transferred neonatal and adult CD8+ T cells into a mouse model of chronic infection (lymphocytic choriomeningitis virus clone 13) and dissected out the key cell-intrinsic differences that alter their ability to protect the host. Interestingly, we found that neonatal CD8+ T cells preferentially became effector cells early in chronic infection compared with adult CD8+ T cells and expressed higher levels of genes associated with cell migration and effector cell differentiation. During the chronic phase of infection, the neonatal cells retained more immune functionality and expressed lower levels of surface markers and genes related to exhaustion. Because the neonatal cells protect from viral replication early in chronic infection, the altered differentiation trajectories of neonatal and adult CD8+ T cells is functionally significant. Together, our work demonstrates how cell-intrinsic differences between neonatal and adult CD8+ T cells influence key cell fate decisions during chronic infection.
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Affiliation(s)
- Viviana I. Maymí
- Department of Microbiology and Immunology, Cornell University, Ithaca, NY, USA
| | - Hongya Zhu
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY, USA
| | - Mason Jager
- Department of Population Medicine and Diagnostic Sciences, Cornell University, Ithaca, NY 14853, USA
| | - Shawn Johnson
- Department of Microbiology and Immunology, Cornell University, Ithaca, NY, USA
| | - Rodman Getchell
- Department of Microbiology and Immunology, Cornell University, Ithaca, NY, USA
| | - James W. Casey
- Department of Microbiology and Immunology, Cornell University, Ithaca, NY, USA
| | - Jennifer K. Grenier
- Transcriptional Regulation and Expression Facility, Department of Biomedical Sciences, Cornell University, Ithaca, NY 14853, USA
| | - E. John Wherry
- Institute for Immunology and Immune Health, and Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Norah L. Smith
- Department of Microbiology and Immunology, Cornell University, Ithaca, NY, USA
| | - Andrew Grimson
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY, USA
| | - Brian D. Rudd
- Department of Microbiology and Immunology, Cornell University, Ithaca, NY, USA
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8
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Niemietz P, Peiseler M, Kohlhepp M, Horn P, Matchett K, Wang Y, Haas L, Zhang T, Bruneau A, Guillot A, Berger H, Liepelt A, Warzecha K, Demske C, Möckel D, Lammers T, Henderson N, Heymann F, Tacke F. C-C chemokine receptor type 7 (CCR7) regulates hepatic CD8 + T cell homeostasis and response to acute liver injury. Hepatology 2024:01515467-990000000-00719. [PMID: 38231043 DOI: 10.1097/hep.0000000000000757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 12/20/2023] [Indexed: 01/18/2024]
Abstract
BACKGROUND AND AIMS Acute liver failure (ALF) is a rare but life-threatening condition, and DILI, particularly acetaminophen toxicity, is the leading cause of ALF. Innate immune mechanisms further perpetuate liver injury, while the role of the adaptive immune system in DILI-related ALF is unclear. APPROACH AND RESULTS We analyzed liver tissue from 2 independent patient cohorts with ALF and identified hepatic T cell infiltration as a prominent feature in human ALF. CD8 + T cells were characterized by zonation toward necrotic regions and an activated gene expression signature. In murine acetaminophen-induced liver injury, intravital microscopy revealed zonation of CD8 + but not CD4 + T cells at necrotic areas. Gene expression analysis exposed upregulated C-C chemokine receptor 7 (CCR7) and its ligand CCL21 in the liver as well as a broadly activated phenotype of hepatic CD8 + T cells. In 2 mouse models of ALF, Ccr7-/- mice had significantly aggravated early-phase liver damage. Functionally, CCR7 was not involved in the recruitment of CD8 + T cells, but regulated their activation profile potentially through egress to lymphatics. Ccr7-/- CD8 + T cells were characterized by elevated expression of activation, effector, and exhaustion profiles. Adoptive transfer revealed preferential homing of CCR7-deficient CD8 + T cells to the liver, and depletion of CD8 + T cells attenuated liver damage in mice. CONCLUSIONS Our study demonstrates the involvement of the adaptive immune system in ALF in humans and mice. We identify the CCR7-CCL21 axis as an important regulatory pathway, providing downstream protection against T cell-mediated liver injury.
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Affiliation(s)
- Patricia Niemietz
- Department of Medicine III, RWTH-University Hospital Aachen, Aachen, Germany
| | - Moritz Peiseler
- Department of Hepatology & Gastroenterology, Charité Universitätsmedizin Berlin, Campus Virchow-Klinikum and Campus Charité Mitte, Berlin, Germany
- Berlin Institute of Health (BIH), Berlin, Germany
| | - Marlene Kohlhepp
- Department of Hepatology & Gastroenterology, Charité Universitätsmedizin Berlin, Campus Virchow-Klinikum and Campus Charité Mitte, Berlin, Germany
| | - Paul Horn
- Department of Hepatology & Gastroenterology, Charité Universitätsmedizin Berlin, Campus Virchow-Klinikum and Campus Charité Mitte, Berlin, Germany
- Berlin Institute of Health (BIH), Berlin, Germany
| | - Kylie Matchett
- Centre for Inflammation Research, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Yuting Wang
- Department of Hepatology & Gastroenterology, Charité Universitätsmedizin Berlin, Campus Virchow-Klinikum and Campus Charité Mitte, Berlin, Germany
| | - Leon Haas
- Department of Hepatology & Gastroenterology, Charité Universitätsmedizin Berlin, Campus Virchow-Klinikum and Campus Charité Mitte, Berlin, Germany
| | - Tianjiao Zhang
- Department of Hepatology & Gastroenterology, Charité Universitätsmedizin Berlin, Campus Virchow-Klinikum and Campus Charité Mitte, Berlin, Germany
| | - Alix Bruneau
- Department of Hepatology & Gastroenterology, Charité Universitätsmedizin Berlin, Campus Virchow-Klinikum and Campus Charité Mitte, Berlin, Germany
| | - Adrien Guillot
- Department of Hepatology & Gastroenterology, Charité Universitätsmedizin Berlin, Campus Virchow-Klinikum and Campus Charité Mitte, Berlin, Germany
| | - Hilmar Berger
- Department of Hepatology & Gastroenterology, Charité Universitätsmedizin Berlin, Campus Virchow-Klinikum and Campus Charité Mitte, Berlin, Germany
| | - Anke Liepelt
- Department of Medicine III, RWTH-University Hospital Aachen, Aachen, Germany
| | - Klaudia Warzecha
- Department of Medicine III, RWTH-University Hospital Aachen, Aachen, Germany
| | - Catharina Demske
- Department of Hepatology & Gastroenterology, Charité Universitätsmedizin Berlin, Campus Virchow-Klinikum and Campus Charité Mitte, Berlin, Germany
| | - Diana Möckel
- Department of Nanomedicine and Theranostics, Institute for Molecular Imaging, Faculty of Medicine, RWTH Aachen University, Aachen, Germany
| | - Twan Lammers
- Department of Nanomedicine and Theranostics, Institute for Molecular Imaging, Faculty of Medicine, RWTH Aachen University, Aachen, Germany
| | - Neil Henderson
- Centre for Inflammation Research, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Felix Heymann
- Department of Hepatology & Gastroenterology, Charité Universitätsmedizin Berlin, Campus Virchow-Klinikum and Campus Charité Mitte, Berlin, Germany
| | - Frank Tacke
- Department of Hepatology & Gastroenterology, Charité Universitätsmedizin Berlin, Campus Virchow-Klinikum and Campus Charité Mitte, Berlin, Germany
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9
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Su C, Kent CL, Pierpoint M, Floyd W, Luo L, Wiliams NT, Ma Y, Peng B, Lazarides AL, Subramanian A, Himes JE, Perez VM, Hernansaiz-Ballesteros RD, Roche KE, Modliszewski JL, Selitsky SR, Mari Shinohara, Wisdom AJ, Moding EJ, Mowery YM, Kirsch DG. Enhancing radiotherapy response via intratumoral injection of the TLR9 agonist CpG to stimulate CD8 T cells in an autochthonous mouse model of sarcoma. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.03.573968. [PMID: 38260522 PMCID: PMC10802286 DOI: 10.1101/2024.01.03.573968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Radiation therapy is frequently used to treat cancers including soft tissue sarcomas. Prior studies established that the toll-like receptor 9 (TLR9) agonist cytosine-phosphate-guanine oligodeoxynucleotide (CpG) enhances the response to radiation therapy (RT) in transplanted tumors, but the mechanism(s) remain unclear. Here, we used CRISPR/Cas9 and the chemical carcinogen 3-methylcholanthrene (MCA) to generate autochthonous soft tissue sarcomas with high tumor mutation burden. Treatment with a single fraction of 20 Gy RT and two doses of CpG significantly enhanced tumor response, which was abrogated by genetic or immunodepletion of CD8+ T cells. To characterize the immune response to RT + CpG, we performed bulk RNA-seq, single-cell RNA-seq, and mass cytometry. Sarcomas treated with 20 Gy and CpG demonstrated increased CD8 T cells expressing markers associated with activation and proliferation, such as Granzyme B, Ki-67, and interferon-γ. CpG + RT also upregulated antigen presentation pathways on myeloid cells. Furthermore, in sarcomas treated with CpG + RT, TCR clonality analysis suggests an increase in clonal T-cell dominance. Collectively, these findings demonstrate that RT + CpG significantly delays tumor growth in a CD8 T cell-dependent manner. These results provide a strong rationale for clinical trials evaluating CpG or other TLR9 agonists with RT in patients with soft tissue sarcoma.
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Affiliation(s)
- Chang Su
- Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC, USA
- Department of Radiation Oncology, Duke University Medical Center, Durham, NC, USA
| | - Collin L. Kent
- Department of Radiation Oncology, Duke University Medical Center, Durham, NC, USA
| | - Matthew Pierpoint
- Department of Radiation Oncology, Duke University Medical Center, Durham, NC, USA
| | | | - Lixia Luo
- Department of Radiation Oncology, Duke University Medical Center, Durham, NC, USA
| | - Nerissa T. Wiliams
- Department of Radiation Oncology, Duke University Medical Center, Durham, NC, USA
| | - Yan Ma
- Department of Radiation Oncology, Duke University Medical Center, Durham, NC, USA
| | - Brian Peng
- Department of Radiation Oncology, Duke University Medical Center, Durham, NC, USA
| | | | - Ajay Subramanian
- Department of Radiation Oncology, Stanford University, Stanford, CA, USA
| | - Jonathan E. Himes
- Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC, USA
- Department of Radiation Oncology, Duke University Medical Center, Durham, NC, USA
| | | | | | | | | | | | - Mari Shinohara
- Department of Immunology, Duke University, Durham, NC, USA
| | - Amy J. Wisdom
- Department of Radiation Oncology, Harvard University, Cambridge, MA, USA
| | - Everett J. Moding
- Stanford Cancer Institute, Stanford University, Stanford, CA, USA
- Department of Radiation Oncology, Stanford University, Stanford, CA, USA
| | - Yvonne M. Mowery
- Department of Radiation Oncology, Duke University Medical Center, Durham, NC, USA
- MD Anderson Cancer Center, Houston, TX, USA
- Department of Radiation Oncology, University of Pittsburgh, Pittsburgh, PA, USA
| | - David G. Kirsch
- Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC, USA
- Department of Radiation Oncology, Duke University Medical Center, Durham, NC, USA
- Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
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10
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Kleuser B, Schumacher F, Gulbins E. New Therapeutic Options in Pulmonal Diseases: Sphingolipids and Modulation of Sphingolipid Metabolism. Handb Exp Pharmacol 2024; 284:289-312. [PMID: 37922034 DOI: 10.1007/164_2023_700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2023]
Abstract
Sphingolipids are crucial molecules in the respiratory airways. As in most other tissues and organs, in the lung sphingolipids play an essential role as structural constituents as they regulate barrier function and fluidity of cell membranes. A lung-specific feature is the occurrence of sphingolipids as minor structural components in the surfactant. However, sphingolipids are also key signaling molecules involved in airway cell signaling and their dynamical formation and metabolism are important for normal lung physiology. Dysregulation of sphingolipid metabolism and signaling is involved in altering lung tissue and initiates inflammatory processes promoting the pathogenesis of pulmonal diseases including cystic fibrosis (CF), chronic obstructive pulmonary disease (COPD), and asthma.In the present review, the important role of specific sphingolipid species in pulmonal diseases will be discussed. Only such an understanding opens up the possibility of developing new therapeutic strategies with the aim of correcting the imbalance in sphingolipid metabolism and signaling. Such delivery strategies have already been studied in animal models of these lung diseases, demonstrating that targeting the sphingolipid profile represents new therapeutic opportunities for lung disorders.
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Affiliation(s)
- Burkhard Kleuser
- Institute of Pharmacy, Pharmacology and Toxicology, Freie Universität Berlin, Berlin, Germany.
| | - Fabian Schumacher
- Institute of Pharmacy, Pharmacology and Toxicology, Freie Universität Berlin, Berlin, Germany
| | - Erich Gulbins
- Institute of Molecular Biology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.
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11
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Schenkel JM, Pauken KE. Localization, tissue biology and T cell state - implications for cancer immunotherapy. Nat Rev Immunol 2023; 23:807-823. [PMID: 37253877 DOI: 10.1038/s41577-023-00884-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2023] [Indexed: 06/01/2023]
Abstract
Tissue localization is a critical determinant of T cell immunity. CD8+ T cells are contact-dependent killers, which requires them to physically be within the tissue of interest to kill peptide-MHC class I-bearing target cells. Following their migration and extravasation into tissues, T cells receive many extrinsic cues from the local microenvironment, and these signals shape T cell differentiation, fate and function. Because major organ systems are variable in their functions and compositions, they apply disparate pressures on T cells to adapt to the local microenvironment. Additional complexity arises in the context of malignant lesions (either primary or metastatic), and this has made understanding the factors that dictate T cell function and longevity in tumours challenging. Moreover, T cell differentiation state influences how cues from the microenvironment are interpreted by tissue-infiltrating T cells, highlighting the importance of T cell state in the context of tissue biology. Here, we review the intertwined nature of T cell differentiation state, location, survival and function, and explain how dysfunctional T cell populations can adopt features of tissue-resident memory T cells to persist in tumours. Finally, we discuss how these factors have shaped responses to cancer immunotherapy.
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Affiliation(s)
- Jason M Schenkel
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
- Department of Immunology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
- Department of Laboratory Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
| | - Kristen E Pauken
- Department of Immunology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
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12
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Cho E, Singh R, Han C, Kim SH, Kim KH, Park BM, Shin DH, Han S, Kim YH, Kwon BS, Nam KT, Choi BK. 4-1BB-4-1BBL cis-interaction contributes to the survival of self-reactive CD8 + T cell. Cell Mol Immunol 2023; 20:1077-1080. [PMID: 37365325 PMCID: PMC10468488 DOI: 10.1038/s41423-023-01056-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 06/04/2023] [Indexed: 06/28/2023] Open
Affiliation(s)
- Eunjung Cho
- Immuno-oncology Branch, Division of Rare and Refractory Cancer, National Cancer Center, Goyang, 10408, Republic of Korea
- Severance Biomedical Science Institute, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Rohit Singh
- Immuno-oncology Branch, Division of Rare and Refractory Cancer, National Cancer Center, Goyang, 10408, Republic of Korea
| | - Chungyong Han
- Immuno-oncology Branch, Division of Rare and Refractory Cancer, National Cancer Center, Goyang, 10408, Republic of Korea
- Department of Cancer Biomedical Science, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, 10408, Republic of Korea
| | - Seon-Hee Kim
- Immuno-oncology Branch, Division of Rare and Refractory Cancer, National Cancer Center, Goyang, 10408, Republic of Korea
- Department of Biomedical Laboratory Science, Catholic Kwandong University, Gangneung, 25601, Republic of Korea
| | - Kwang H Kim
- Severance Biomedical Science Institute, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Bo-Mi Park
- Biomedicine Production Branch, Research Institute, National Cancer Center, Goyang, 10408, Republic of Korea
| | - Dong Hoon Shin
- Department of Cancer Biomedical Science, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, 10408, Republic of Korea
- Anticancer Resistance Branch, Division of Rare and Refractory Cancer, Research Institute, National Cancer Center, Goyang, 10408, Republic of Korea
| | - Seongeun Han
- Immuno-oncology Branch, Division of Rare and Refractory Cancer, National Cancer Center, Goyang, 10408, Republic of Korea
| | - Young H Kim
- Eutilex Co., Ltd., Geumcheon-gu, Seoul, 08594, Republic of Korea
| | - Byoung S Kwon
- Eutilex Co., Ltd., Geumcheon-gu, Seoul, 08594, Republic of Korea
- Department of Medicine, Tulane University Health Sciences Center, New Orleans, LA, 70112, USA
| | - Ki Taek Nam
- Severance Biomedical Science Institute, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea.
| | - Beom K Choi
- Immuno-oncology Branch, Division of Rare and Refractory Cancer, National Cancer Center, Goyang, 10408, Republic of Korea.
- Innobationbio Co., Ltd., Mapo-gu, Seoul, 03929, Republic of Korea.
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13
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Hallisey VM, Schwab SR. Get me out of here: Sphingosine 1-phosphate signaling and T cell exit from tissues during an immune response. Immunol Rev 2023; 317:8-19. [PMID: 37212181 DOI: 10.1111/imr.13219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 05/03/2023] [Indexed: 05/23/2023]
Abstract
During an immune response, the duration of T cell residence in lymphoid and non-lymphoid tissues likely affects T cell activation, differentiation, and memory development. The factors that govern T cell transit through inflamed tissues remain incompletely understood, but one important determinant of T cell exit from tissues is sphingosine 1-phosphate (S1P) signaling. In homeostasis, S1P levels are high in blood and lymph compared to lymphoid organs, and lymphocytes follow S1P gradients out of tissues into circulation using varying combinations of five G-protein coupled S1P receptors. During an immune response, both the shape of S1P gradients and the expression of S1P receptors are dynamically regulated. Here we review what is known, and key questions that remain unanswered, about how S1P signaling is regulated in inflammation and in turn how S1P shapes immune responses.
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Affiliation(s)
- Victoria M Hallisey
- Department of Cell Biology, New York University Grossman School of Medicine, New York, New York, USA
| | - Susan R Schwab
- Department of Cell Biology, New York University Grossman School of Medicine, New York, New York, USA
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14
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Chatterjee D, Zhang Y, Ngassaki-Yoka CD, Dutilleul A, Khalfi S, Hernalsteens O, Wiche Salinas TR, Dias J, Chen H, Smail Y, Goulet JP, Bell B, Routy JP, Van Lint C, Ancuta P. Identification of aryl hydrocarbon receptor as a barrier to HIV-1 infection and outgrowth in CD4 + T cells. Cell Rep 2023; 42:112634. [PMID: 37310858 PMCID: PMC10592455 DOI: 10.1016/j.celrep.2023.112634] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 04/06/2023] [Accepted: 05/25/2023] [Indexed: 06/15/2023] Open
Abstract
The aryl hydrocarbon receptor (AhR) regulates Th17-polarized CD4+ T cell functions, but its role in HIV-1 replication/outgrowth remains unknown. Genetic (CRISPR-Cas9) and pharmacological inhibition reveal AhR as a barrier to HIV-1 replication in T cell receptor (TCR)-activated CD4+ T cells in vitro. In single-round vesicular stomatitis virus (VSV)-G-pseudotyped HIV-1 infection, AhR blockade increases the efficacy of early/late reverse transcription and subsequently facilitated integration/translation. Moreover, AhR blockade boosts viral outgrowth in CD4+ T cells of people living with HIV-1 (PLWH) receiving antiretroviral therapy (ART). Finally, RNA sequencing reveals genes/pathways downregulated by AhR blockade in CD4+ T cells of ART-treated PLWH, including HIV-1 interactors and gut-homing molecules with AhR-responsive elements in their promoters. Among them, HIC1, a repressor of Tat-mediated HIV-1 transcription and a tissue-residency master regulator, is identified by chromatin immunoprecipitation as a direct AhR target. Thus, AhR governs a T cell transcriptional program controlling viral replication/outgrowth and tissue residency/recirculation, supporting the use of AhR inhibitors in "shock and kill" HIV-1 remission/cure strategies.
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Affiliation(s)
- Debashree Chatterjee
- Centre de recherche du Centre hospitalier de l'université de Montréal, Montréal, QC H2X 0A9, Canada; Département de microbiologie, infectiologie et immunologie, Faculté de médecine, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - Yuwei Zhang
- Centre de recherche du Centre hospitalier de l'université de Montréal, Montréal, QC H2X 0A9, Canada; Département de microbiologie, infectiologie et immunologie, Faculté de médecine, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - Christ-Dominique Ngassaki-Yoka
- Centre de recherche du Centre hospitalier de l'université de Montréal, Montréal, QC H2X 0A9, Canada; Département de microbiologie, infectiologie et immunologie, Faculté de médecine, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - Antoine Dutilleul
- Service of Molecular Virology, Department of Molecular Biology (DBM), Université libre de Bruxelles (ULB), 6041 Gosselies, Belgium
| | - Soumia Khalfi
- Centre de recherche du Centre hospitalier de l'université de Montréal, Montréal, QC H2X 0A9, Canada
| | - Olivier Hernalsteens
- Service of Molecular Virology, Department of Molecular Biology (DBM), Université libre de Bruxelles (ULB), 6041 Gosselies, Belgium
| | - Tomas Raul Wiche Salinas
- Centre de recherche du Centre hospitalier de l'université de Montréal, Montréal, QC H2X 0A9, Canada; Département de microbiologie, infectiologie et immunologie, Faculté de médecine, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - Jonathan Dias
- Centre de recherche du Centre hospitalier de l'université de Montréal, Montréal, QC H2X 0A9, Canada; Département de microbiologie, infectiologie et immunologie, Faculté de médecine, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - Huicheng Chen
- Département de microbiologie, infectiologie et immunologie, Faculté de médecine, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - Yasmine Smail
- Département de microbiologie, infectiologie et immunologie, Faculté de médecine, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | | | - Brendan Bell
- Département de Microbiologie et Infectiologie, Faculté de Médecine et des Sciences de la Santé and Centre de recherche du CHUS, Université de Sherbrooke, Sherbrooke, QC J1E 4K8, Canada
| | - Jean-Pierre Routy
- Division of Hematology and Chronic Viral Illness Service, McGill University Health Centre, Montreal, QC H3H 2R9, Canada; Infectious Disease and Immunity in Global Health Program, Research Institute of McGill University Health Centre, Montreal, QC H3H 2R9, Canada
| | - Carine Van Lint
- Service of Molecular Virology, Department of Molecular Biology (DBM), Université libre de Bruxelles (ULB), 6041 Gosselies, Belgium.
| | - Petronela Ancuta
- Centre de recherche du Centre hospitalier de l'université de Montréal, Montréal, QC H2X 0A9, Canada; Département de microbiologie, infectiologie et immunologie, Faculté de médecine, Université de Montréal, Montréal, QC H3C 3J7, Canada; Department of Microbiology and Immunology, Faculty of Biology, University of Bucharest & The Research Institute of the University of Bucharest, 050095 Bucharest, Romania.
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15
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Wang N, Li JY, Zeng B, Chen GL. Sphingosine-1-Phosphate Signaling in Cardiovascular Diseases. Biomolecules 2023; 13:biom13050818. [PMID: 37238688 DOI: 10.3390/biom13050818] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/07/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
Sphingosine-1-phosphate (S1P) is an important sphingolipid molecule involved in regulating cardiovascular functions in physiological and pathological conditions by binding and activating the three G protein-coupled receptors (S1PR1, S1PR2, and S1PR3) expressed in endothelial and smooth muscle cells, as well as cardiomyocytes and fibroblasts. It exerts its actions through various downstream signaling pathways mediating cell proliferation, migration, differentiation, and apoptosis. S1P is essential for the development of the cardiovascular system, and abnormal S1P content in the circulation is involved in the pathogenesis of cardiovascular disorders. This article reviews the effects of S1P on cardiovascular function and signaling mechanisms in different cell types in the heart and blood vessels under diseased conditions. Finally, we look forward to more clinical findings with approved S1PR modulators and the development of S1P-based therapies for cardiovascular diseases.
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Affiliation(s)
- Na Wang
- Key Laboratory of Medical Electrophysiology, Ministry of Education & Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou 646000, China
| | - Jing-Yi Li
- Key Laboratory of Medical Electrophysiology, Ministry of Education & Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou 646000, China
| | - Bo Zeng
- Key Laboratory of Medical Electrophysiology, Ministry of Education & Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou 646000, China
| | - Gui-Lan Chen
- Key Laboratory of Medical Electrophysiology, Ministry of Education & Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou 646000, China
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16
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Plunkett KR, Armitage JD, Inderjeeth AJ, McDonnell AM, Waithman J, Lau PKH. Tissue-resident memory T cells in the era of (Neo) adjuvant melanoma management. Front Immunol 2022; 13:1048758. [PMID: 36466880 PMCID: PMC9709277 DOI: 10.3389/fimmu.2022.1048758] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 10/13/2022] [Indexed: 10/10/2023] Open
Abstract
Tissue-resident memory T (TRM) cells have emerged as key players in the immune control of melanoma. These specialized cells are identified by expression of tissue retention markers such as CD69, CD103 and CD49a with downregulation of egress molecules such as Sphingosine-1-Phosphate Receptor-1 (S1PR1) and the lymphoid homing receptor, CD62L. TRM have been shown to be integral in controlling infections such as herpes simplex virus (HSV), lymphocytic choriomeningitis virus (LCMV) and influenza. More recently, robust pre-clinical models have also demonstrated TRM are able to maintain melanoma in a dormant state without progression to macroscopic disease reminiscent of their ability to control viral infections. The discovery of the role these cells play in anti-melanoma immunity has coincided with the advent of immune checkpoint inhibitor (ICI) therapy which has revolutionized the treatment of cancers. ICIs that target programmed death protein-1 (PD-1) and cytotoxic T lymphocyte antigen-4 (CTLA-4) have led to substantial improvements in outcomes for patients with metastatic melanoma and have been rapidly employed to reduce recurrences in the resected stage III setting. While ICIs mediate anti-tumor activity via CD8+ T cells, the specific subsets that facilitate this response is unclear. TRM invariably exhibit high expression of immune checkpoints such as PD-1, CTLA-4 and lymphocyte activating gene-3 (LAG-3) which strongly implicates this CD8+ T cell subset as a crucial mediator of ICI activity. In this review, we present pre-clinical and translational studies that highlight the critical role of TRM in both immune control of primary melanoma and as a key CD8+ T cell subset that mediates anti-tumor activity of ICIs for the treatment of melanoma.
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Affiliation(s)
- Kai R. Plunkett
- School of Biomedical Sciences, University of Western Australia, Nedlands, WA, Australia
- Telethon Kids Institute, University of Western Australia, Nedlands, WA, Australia
| | - Jesse D. Armitage
- School of Biomedical Sciences, University of Western Australia, Nedlands, WA, Australia
- Telethon Kids Institute, University of Western Australia, Nedlands, WA, Australia
| | | | - Alison M. McDonnell
- Telethon Kids Institute, University of Western Australia, Nedlands, WA, Australia
| | - Jason Waithman
- School of Biomedical Sciences, University of Western Australia, Nedlands, WA, Australia
- Telethon Kids Institute, University of Western Australia, Nedlands, WA, Australia
| | - Peter K. H. Lau
- Melanoma Discovery Laboratory, Harry Perkins Institute of Medical Research, Nedlands, WA, Australia
- Department of Medical Oncology, Sir Charles Gairdner Hospital, Nedlands, WA, Australia
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17
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Darragh LB, Gadwa J, Pham TT, Van Court B, Neupert B, Olimpo NA, Nguyen K, Nguyen D, Knitz MW, Hoen M, Corbo S, Joshi M, Zhuang Y, Amann M, Wang XJ, Dow S, Kedl RM, Samedi V, Boss MK, Karam SD. Elective nodal irradiation mitigates local and systemic immunity generated by combination radiation and immunotherapy in head and neck tumors. Nat Commun 2022; 13:7015. [PMID: 36385142 PMCID: PMC9668826 DOI: 10.1038/s41467-022-34676-w] [Citation(s) in RCA: 51] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 11/02/2022] [Indexed: 11/17/2022] Open
Abstract
In the setting of conventional radiation therapy, even when combined with immunotherapy, head and neck cancer often recurs locally and regionally. Elective nodal irradiation (ENI) is commonly employed to decrease regional recurrence. Given our developing understanding that immune cells are radio-sensitive, and that T cell priming occurs in the draining lymph nodes (DLNs), we hypothesize that radiation therapy directed at the primary tumor only will increase the effectiveness of immunotherapies. We find that ENI increases local, distant, and metastatic tumor growth. Multi-compartmental analysis of the primary/distant tumor, the DLNs, and the blood shows that ENI decreases the immune response systemically. Additionally, we find that ENI decreases antigen-specific T cells and epitope spreading. Treating the primary tumor with radiation and immunotherapy, however, fails to reduce regional recurrence, but this is reversed by either concurrent sentinel lymph node resection or irradiation. Our data support using lymphatic sparing radiation therapy for head and neck cancer.
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Affiliation(s)
- Laurel B Darragh
- Department of Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
- Department of Immunology and Microbiology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Jacob Gadwa
- Department of Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Tiffany T Pham
- Department of Otolaryngology Head and Neck Surgery, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Benjamin Van Court
- Department of Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Brooke Neupert
- Department of Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Nicholas A Olimpo
- Department of Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Khoa Nguyen
- Department of Pathology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Diemmy Nguyen
- Department of Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Michael W Knitz
- Department of Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Maureen Hoen
- Department of Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Sophia Corbo
- Department of Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Molishree Joshi
- Department of Pharmacology, University of Colorado Denver at Anschutz Medical campus, Aurora, CO, USA
| | - Yonghua Zhuang
- Department of Pediatrics, Cancer Center Biostatistics Core, University of Colorado Anschutz Medical campus, Aurora, CO, USA
| | - Maria Amann
- Roche Innovation Center Zurich, Roche Pharmaceutical Research and Early Development (pRED) Schlieren, Zurich, Switzerland
| | - Xiao-Jing Wang
- Department of Pathology and Laboratory Medicine, University of California Davis, School of Medicine, Davis, USA
- Veterans Affairs Medical Center, VA Eastern Colorado Health Care System, Aurora, CO, 80045, USA
| | - Steven Dow
- Department of Radiation Oncology, Colorado State University, Fort Collins, Colorado. Campus, Aurora, CO, USA
| | - Ross M Kedl
- Department of Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Von Samedi
- Department of Pathology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA
| | - Mary-Keara Boss
- Department of Radiation Oncology, Colorado State University, Fort Collins, Colorado. Campus, Aurora, CO, USA
| | - Sana D Karam
- Department of Radiation Oncology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA.
- Department of Immunology and Microbiology, University of Colorado Denver at Anschutz Medical Campus, Aurora, CO, USA.
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18
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Vrba SM, Hickman HD. Imaging viral infection in vivo to gain unique perspectives on cellular antiviral immunity. Immunol Rev 2022; 306:200-217. [PMID: 34796538 PMCID: PMC9073719 DOI: 10.1111/imr.13037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 10/17/2021] [Indexed: 11/29/2022]
Abstract
The past decade has seen near continual global public health crises caused by emerging viral infections. Extraordinary increases in our knowledge of the mechanisms underlying successful antiviral immune responses in animal models and during human infection have accompanied these viral outbreaks. Keeping pace with the rapidly advancing field of viral immunology, innovations in microscopy have afforded a previously unseen view of viral infection occurring in real-time in living animals. Here, we review the contribution of intravital imaging to our understanding of cell-mediated immune responses to viral infections, with a particular focus on studies that visualize the antiviral effector cells responding to infection as well as virus-infected cells. We discuss methods to visualize viral infection in vivo using intravital microscopy (IVM) and significant findings arising through the application of IVM to viral infection. Collectively, these works underscore the importance of developing a comprehensive spatial understanding of the relationships between immune effectors and virus-infected cells and how this has enabled unique discoveries about virus/host interactions and antiviral effector cell biology.
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Affiliation(s)
- Sophia M. Vrba
- Laboratory of Clinical Immunology and Microbiology, National Institutes of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Heather D. Hickman
- Laboratory of Clinical Immunology and Microbiology, National Institutes of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.,Correspondence to: HDH. . 10 Center Drive, Rm 11N244A. Bethesda, MD. 20892. 301-761-6330
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19
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Reed SG, Ager A. Immune Responses to IAV Infection and the Roles of L-Selectin and ADAM17 in Lymphocyte Homing. Pathogens 2022; 11:pathogens11020150. [PMID: 35215094 PMCID: PMC8878872 DOI: 10.3390/pathogens11020150] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 01/14/2022] [Accepted: 01/21/2022] [Indexed: 02/04/2023] Open
Abstract
Influenza A virus (IAV) infection is a global public health burden causing up to 650,000 deaths per year. Yearly vaccination programmes and anti-viral drugs currently have limited benefits; therefore, research into IAV is fundamental. Leukocyte trafficking is a crucial process which orchestrates the immune response to infection to protect the host. It involves several homing molecules and receptors on both blood vessels and leukocytes. A key mediator of this process is the transmembrane glycoprotein L-selectin, which binds to vascular addressins on blood vessel endothelial cells. L-selectin classically mediates homing of naïve and central memory lymphocytes to lymph nodes via high endothelial venules (HEVs). Recent studies have found that L-selectin is essential for homing of activated CD8+ T cells to influenza-infected lungs and reduction in virus load. A disintegrin and metalloproteinase 17 (ADAM17) is the primary regulator of cell surface levels of L-selectin. Understanding the mechanisms that regulate these two proteins are central to comprehending recruitment of T cells to sites of IAV infection. This review summarises the immune response to IAV infection in humans and mice and discusses the roles of L-selectin and ADAM17 in T lymphocyte homing during IAV infection.
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Affiliation(s)
| | - Ann Ager
- Correspondence: (S.G.R.); (A.A.)
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20
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In Vitro Characterization of Sphingosine 1-Phosphate Receptor 1 (S1P 1) Expression and Mediated Migration of Primary Human T and B Cells in the Context of Cenerimod, a Novel, Selective S1P 1 Receptor Modulator. Int J Mol Sci 2022; 23:ijms23031191. [PMID: 35163112 PMCID: PMC8835580 DOI: 10.3390/ijms23031191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 01/07/2022] [Accepted: 01/18/2022] [Indexed: 01/27/2023] Open
Abstract
Cenerimod is a potent, selective sphingosine 1-phosphate receptor 1 (S1P1) modulator currently investigated in a Phase IIb study in patients with systemic lupus erythematosus (SLE) (NCT03742037). S1P1 receptor modulators sequester circulating lymphocytes within lymph nodes, thereby reducing pathogenic autoimmune cells (including T and B lymphocytes) in the bloodstream and inflamed tissues, making them an effective therapeutic concept for autoimmune disorders. Although the effect of S1P receptor modulators in reducing circulating lymphocytes is well documented, the precise molecular role of the S1P1 receptor on these cell types is not fully understood. In this study, the mode of action of cenerimod on human primary lymphocytes in different activation states was investigated focusing on their chemotactic behavior towards S1P in real-time, concomitant to S1P1 receptor expression and internalization dynamics. Here, we show that cenerimod effectively prevents T and B cell migration in a concentration-dependent manner. Interestingly, while T cell activation led to strong S1P1 re-expression and enhanced migration; in B cells, an enhanced migration capacity and S1P1 receptor surface expression was observed in an unstimulated state. Importantly, concomitant treatment with glucocorticoids (GCs), a frequently used treatment for autoimmune disorders, had no impact on the inhibitory activity of cenerimod on lymphocytes.
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21
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Jia X, Yang R, Li J, Zhao L, Zhou X, Xu X. Gut-Bone Axis: A Non-Negligible Contributor to Periodontitis. Front Cell Infect Microbiol 2021; 11:752708. [PMID: 34869062 PMCID: PMC8637199 DOI: 10.3389/fcimb.2021.752708] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 10/26/2021] [Indexed: 02/05/2023] Open
Abstract
Periodontitis is a polymicrobial infectious disease characterized by alveolar bone loss. Systemic diseases or local infections, such as diabetes, postmenopausal osteoporosis, obesity, and inflammatory bowel disease, promote the development and progression of periodontitis. Accumulating evidences have revealed the pivotal effects of gut microbiota on bone health via gut-alveolar-bone axis. Gut pathogens or metabolites may translocate to distant alveolar bone via circulation and regulate bone homeostasis. In addition, gut pathogens can induce aberrant gut immune responses and subsequent homing of immunocytes to distant organs, contributing to pathological bone loss. Gut microbial translocation also enhances systemic inflammation and induces trained myelopoiesis in the bone marrow, which potentially aggravates periodontitis. Furthermore, gut microbiota possibly affects bone health via regulating the production of hormone or hormone-like substances. In this review, we discussed the links between gut microbiota and periodontitis, with a particular focus on the underlying mechanisms of gut-bone axis by which systemic diseases or local infections contribute to the pathogenesis of periodontitis.
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Affiliation(s)
- Xiaoyue Jia
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ran Yang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jiyao Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Lei Zhao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Periodontology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xin Xu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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22
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Ni G, Liu X, Li H, Fogarty CE, Chen S, Zhang P, Liu Y, Wu X, Wei MQ, Chen G, Zhang P, Wang T. Topical Application of Temperature-Sensitive Gel Containing Caerin 1.1 and 1.9 Peptides on TC-1 Tumour-Bearing Mice Induced High-Level Immune Response in the Tumour Microenvironment. Front Oncol 2021; 11:754770. [PMID: 34858827 PMCID: PMC8632150 DOI: 10.3389/fonc.2021.754770] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Accepted: 10/11/2021] [Indexed: 01/22/2023] Open
Abstract
The development of topical cream drugs that increase the immune activation of tumour-infiltrating lymphocytes against tumour and chronic viral infection-associated lesions is of great immunotherapeutic significance. This study demonstrates that the topical application of a temperature-sensitive gel containing caerin 1.1 and 1.9 peptides reduces nearly 50% of the tumour weight of HPV16 E6/E7-transformed TC-1 tumour-bearing mice via improving the tumour microenvironment. Confocal microscopy confirms the time-dependent penetration of caerin 1.9 through the epidermal layer of the ear skin structure of mice. Single-cell transcriptomic analysis shows that the caerin 1.1/1.9 gel expands the populations with high immune activation level and largely stimulates the pro-inflammatory activity of NK and dendritic cells. Closely associated with INFα response, Cebpb seems to play a key role in altering the function of all Arg1hi macrophages in the caerin group. In addition, the caerin gel treatment recruits almost two-fold more activated CD8+ T cells to the TME, relative to the untreated tumour, which shows a synergistic effect derived from the regulation of S1pr1, Ccr7, Ms4a4b and Gimap family expression. The TMT10plex-labelling proteomic quantification further demonstrates the activation of interferon-alpha/beta secretion and response to cytokine stimulus by the caerin gel, while the protein contents of several key regulators were elevated by more than 30%, such as Cd5l, Gzma, Ifit1, Irf9 and Stat1. Computational integration of the proteome with the single-cell transcriptome consistently suggested greater activation of NK and T cells with the topical application of caerin peptide gel.
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Affiliation(s)
- Guoying Ni
- Cancer Research Institute, First People's Hospital of Foshan, Foshan, China.,Genecology Research Centre, University of the Sunshine Coast, Maroochydore DC, QLD, Australia.,Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD, Australia.,The First Affiliated Hospital/School of Clinical Medicine of Guangdong Pharmaceutical University , Guangzhou, China
| | - Xiaosong Liu
- Cancer Research Institute, First People's Hospital of Foshan, Foshan, China.,Genecology Research Centre, University of the Sunshine Coast, Maroochydore DC, QLD, Australia
| | - Hejie Li
- Genecology Research Centre, University of the Sunshine Coast, Maroochydore DC, QLD, Australia.,School of Science, Technology and Engineering, University of the Sunshine Coast, Maroochydore DC, QLD, Australia
| | - Conor E Fogarty
- Genecology Research Centre, University of the Sunshine Coast, Maroochydore DC, QLD, Australia.,School of Science, Technology and Engineering, University of the Sunshine Coast, Maroochydore DC, QLD, Australia
| | - Shu Chen
- Cancer Research Institute, First People's Hospital of Foshan, Foshan, China
| | - Pingping Zhang
- Cancer Research Institute, First People's Hospital of Foshan, Foshan, China
| | - Ying Liu
- Cancer Research Institute, First People's Hospital of Foshan, Foshan, China
| | - Xiaolian Wu
- Cancer Research Institute, First People's Hospital of Foshan, Foshan, China
| | - Ming Q Wei
- Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD, Australia
| | - Guoqiang Chen
- Cancer Research Institute, First People's Hospital of Foshan, Foshan, China
| | - Ping Zhang
- Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD, Australia
| | - Tianfang Wang
- Genecology Research Centre, University of the Sunshine Coast, Maroochydore DC, QLD, Australia.,School of Science, Technology and Engineering, University of the Sunshine Coast, Maroochydore DC, QLD, Australia
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23
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Johnson SC, Frattolin J, Edgar LT, Jafarnejad M, Moore Jr JE. Lymph node swelling combined with temporary effector T cell retention aids T cell response in a model of adaptive immunity. J R Soc Interface 2021; 18:20210464. [PMID: 34847790 PMCID: PMC8633806 DOI: 10.1098/rsif.2021.0464] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Accepted: 11/02/2021] [Indexed: 12/19/2022] Open
Abstract
Swelling of lymph nodes (LNs) is commonly observed during the adaptive immune response, yet the impact on T cell (TC) trafficking and subsequent immune response is not well known. To better understand the effect of macro-scale alterations, we developed an agent-based model of the LN paracortex, describing the TC proliferative response to antigen-presenting dendritic cells alongside inflammation-driven and swelling-induced changes in TC recruitment and egress, while also incorporating regulation of the expression of egress-modulating TC receptor sphingosine-1-phosphate receptor-1. Analysis of the effector TC response under varying swelling conditions showed that swelling consistently aided TC activation. However, subsequent effector CD8+ TC production was reduced in scenarios where swelling occurred too early in the TC proliferative phase or when TC cognate frequency was low due to increased opportunity for TC exit. Temporarily extending retention of newly differentiated effector TCs, mediated by sphingosine-1-phosphate receptor-1 expression, mitigated any negative effects of swelling by allowing facilitation of activation to outweigh increased access to exit areas. These results suggest that targeting temporary effector TC retention and egress associated with swelling offers new ways to modulate effector TC responses in, for example, immuno-suppressed patients and to optimize of vaccine design.
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Affiliation(s)
- Sarah C. Johnson
- Department of Bioengineering, Imperial College London, London, UK
| | | | - Lowell T. Edgar
- Department of Bioengineering, Imperial College London, London, UK
| | - Mohammad Jafarnejad
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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24
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Anwar M, Amin MR, Balaji Ragunathrao VA, Matsche J, Karginov A, Minshall RD, Mo GCH, Komarova Y, Mehta D. Tyrosine phosphorylation of S1PR1 leads to chaperone BiP-mediated import to the endoplasmic reticulum. J Cell Biol 2021; 220:212707. [PMID: 34652421 PMCID: PMC8562845 DOI: 10.1083/jcb.202006021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 11/02/2020] [Accepted: 06/15/2021] [Indexed: 01/14/2023] Open
Abstract
Cell surface G protein–coupled receptors (GPCRs), upon agonist binding, undergo serine–threonine phosphorylation, leading to either receptor recycling or degradation. Here, we show a new fate of GPCRs, exemplified by ER retention of sphingosine-1-phosphate receptor 1 (S1PR1). We show that S1P phosphorylates S1PR1 on tyrosine residue Y143, which is associated with recruitment of activated BiP from the ER into the cytosol. BiP then interacts with endocytosed Y143-S1PR1 and delivers it into the ER. In contrast to WT-S1PR1, which is recycled and stabilizes the endothelial barrier, phosphomimicking S1PR1 (Y143D-S1PR1) is retained by BiP in the ER and increases cytosolic Ca2+ and disrupts barrier function. Intriguingly, a proinflammatory, but non-GPCR agonist, TNF-α, also triggered barrier-disruptive signaling by promoting S1PR1 phosphorylation on Y143 and its import into ER via BiP. BiP depletion restored Y143D-S1PR1 expression on the endothelial cell surface and rescued canonical receptor functions. Findings identify Y143-phosphorylated S1PR1 as a potential target for prevention of endothelial barrier breakdown under inflammatory conditions.
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Affiliation(s)
- Mumtaz Anwar
- Department of Pharmacology, Center for Lung and Vascular Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL
| | - Md Ruhul Amin
- Department of Pharmacology, Center for Lung and Vascular Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL
| | - Vijay Avin Balaji Ragunathrao
- Department of Pharmacology, Center for Lung and Vascular Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL
| | - Jacob Matsche
- Department of Pharmacology, Center for Lung and Vascular Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL
| | - Andrei Karginov
- Department of Pharmacology, Center for Lung and Vascular Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL
| | - Richard D Minshall
- Department of Pharmacology, Center for Lung and Vascular Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL.,Department of Anesthesiology, Center for Lung and Vascular Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL
| | - Gary C H Mo
- Department of Pharmacology, Center for Lung and Vascular Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL
| | - Yulia Komarova
- Department of Pharmacology, Center for Lung and Vascular Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL
| | - Dolly Mehta
- Department of Pharmacology, Center for Lung and Vascular Biology, College of Medicine, University of Illinois at Chicago, Chicago, IL
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25
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Chuang HC, Chen MH, Chen YM, Yang HY, Ciou YR, Hsueh CH, Tsai CY, Tan TH. BPI overexpression suppresses Treg differentiation and induces exosome-mediated inflammation in systemic lupus erythematosus. Theranostics 2021; 11:9953-9966. [PMID: 34815797 PMCID: PMC8581436 DOI: 10.7150/thno.63743] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 10/13/2021] [Indexed: 12/11/2022] Open
Abstract
Background: Serum-derived exosomes are correlated with disease severity of human systemic lupus erythematosus (SLE). The proteins in the T-cell-derived exosomes from SLE patients could contribute to inflammation. Methods: We characterized proteins of T cell-derived exosomes from SLE patients and healthy controls by proteomics. To study the potential pathogenic role of the identified exosomal protein, we generated and characterized T-cell-specific transgenic mice that overexpressed the identified protein in T cells using immunohistochemistry, immunoblotting, and single-cell RNA sequencing. Results: We identified an overexpressed protein, bactericidal/permeability-increasing protein (BPI), in SLE T cells and T-cell-derived exosomes. T-cell-specific BPI transgenic (Lck-BPI Tg) mice showed multi-tissue inflammation with early induction of serum IL-1β levels, as well as serum triglyceride and creatinine levels. Interestingly, exosomes of Lck-BPI Tg T cells stimulated IL-1β expression of wild-type recipient macrophages. Remarkably, adoptive transfer of BPI-containing exosomes increased serum IL-1β and autoantibody levels in recipient mice. The transferred exosomes infiltrated into multiple tissues of recipient mice, resulting in hepatitis, nephritis, and arthritis. ScRNA-seq showed that Lck-BPI Tg T cells displayed a decrease of Treg population, which was concomitant with ZFP36L2 upregulation and Helios downregulation. Furthermore, in vitro Treg differentiation was reduced by BPI transgene and enhanced by BPI knockout. Conclusions: BPI is a negative regulator of Treg differentiation. BPI overexpression in T-cell-derived exosomes or peripheral blood T cells may be a biomarker and pathogenic factor for human SLE nephritis, hepatitis, and arthritis.
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Affiliation(s)
- Huai-Chia Chuang
- Immunology Research Center, National Health Research Institutes, Zhunan, Taiwan
| | - Ming-Han Chen
- Division of Allergy, Immunology, and Rheumatology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yi-Ming Chen
- Division of Allergy, Immunology, and Rheumatology, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Huang-Yu Yang
- Department of Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Yi-Ru Ciou
- Immunology Research Center, National Health Research Institutes, Zhunan, Taiwan
| | - Chia-Hsin Hsueh
- Immunology Research Center, National Health Research Institutes, Zhunan, Taiwan
| | - Ching-Yi Tsai
- Immunology Research Center, National Health Research Institutes, Zhunan, Taiwan
| | - Tse-Hua Tan
- Immunology Research Center, National Health Research Institutes, Zhunan, Taiwan
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, Texas, USA
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26
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Rezzola S, Sigmund EC, Halin C, Ronca R. The lymphatic vasculature: An active and dynamic player in cancer progression. Med Res Rev 2021; 42:576-614. [PMID: 34486138 PMCID: PMC9291933 DOI: 10.1002/med.21855] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 04/29/2021] [Accepted: 08/26/2021] [Indexed: 12/16/2022]
Abstract
The lymphatic vasculature has been widely described and explored for its key functions in fluid homeostasis and in the organization and modulation of the immune response. Besides transporting immune cells, lymphatic vessels play relevant roles in tumor growth and tumor cell dissemination. Cancer cells that have invaded into afferent lymphatics are propagated to tumor‐draining lymph nodes (LNs), which represent an important hub for metastatic cell arrest and growth, immune modulation, and secondary dissemination to distant sites. In recent years many studies have reported new mechanisms by which the lymphatic vasculature affects cancer progression, ranging from induction of lymphangiogenesis to metastatic niche preconditioning or immune modulation. In this review, we provide an up‐to‐date description of lymphatic organization and function in peripheral tissues and in LNs and the changes induced to this system by tumor growth and progression. We will specifically focus on the reported interactions that occur between tumor cells and lymphatic endothelial cells (LECs), as well as on interactions between immune cells and LECs, both in the tumor microenvironment and in tumor‐draining LNs. Moreover, the most recent prognostic and therapeutic implications of lymphatics in cancer will be reported and discussed in light of the new immune‐modulatory roles that have been ascribed to LECs.
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Affiliation(s)
- Sara Rezzola
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Elena C Sigmund
- Institute of Pharmaceutical Sciences, ETH Zurich, Zurich, Switzerland
| | - Cornelia Halin
- Institute of Pharmaceutical Sciences, ETH Zurich, Zurich, Switzerland
| | - Roberto Ronca
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
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27
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Chen CL, Meng E, Wu ST, Lai HF, Lu YS, Yang MH, Tsao CW, Kao CC, Chiu YL. Targeting S1PR1 May Result in Enhanced Migration of Cancer Cells in Bladder Carcinoma. Cancers (Basel) 2021; 13:cancers13174474. [PMID: 34503284 PMCID: PMC8431630 DOI: 10.3390/cancers13174474] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/19/2021] [Accepted: 09/01/2021] [Indexed: 12/12/2022] Open
Abstract
Clinical bladder tumor histological analysis shows that high expression of S1PR1 is associated with poor patient prognosis. However, there are no studies that describe the underlying mechanism. To investigate the relative distribution and actual function of S1PR1 in bladder tumors, we analyzed multiple clinical databases in combination with tumor purity and immune cell infiltration simulations, as well as databases of well-defined histological phenotypes of bladder cancer, and single-cell sequencing of adjacent normal tissues and bladder tumors, and further compared them with bladder cancer cell lines. The results showed that S1PR1 expression was generally higher in normal tissues than in bladder cancer tissues, and its distribution was mainly in endothelial cells or immune cells. The association between high S1PR1 expression and poor prognosis may be due to tumor invasion of adjacent normal tissues, where highly expressed S1PR1 may affect prognostic interpretation. The effect of S1PR1 itself on cancer cells was associated with cell adhesion, and in bladder cancer cells, S1PR1 expression was negatively correlated with cell motility. Moreover, the use of FTY-720 will cause an increased metastatic ability of bladder cancer cells. In conclusion, we suggest that the use of S1PR1-specific inhibition as a synergistic treatment requires more observation and consideration.
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Affiliation(s)
- Chin-Li Chen
- Division of Urology, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan; (C.-L.C.); (E.M.); (S.-T.W.); (M.-H.Y.); (C.-W.T.); (C.-C.K.)
| | - En Meng
- Division of Urology, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan; (C.-L.C.); (E.M.); (S.-T.W.); (M.-H.Y.); (C.-W.T.); (C.-C.K.)
| | - Sheng-Tang Wu
- Division of Urology, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan; (C.-L.C.); (E.M.); (S.-T.W.); (M.-H.Y.); (C.-W.T.); (C.-C.K.)
| | - Hsing-Fan Lai
- Department of Biochemistry, National Defense Medical Center, Taipei 11490, Taiwan; (H.-F.L.); (Y.-S.L.)
| | - Yi-Shan Lu
- Department of Biochemistry, National Defense Medical Center, Taipei 11490, Taiwan; (H.-F.L.); (Y.-S.L.)
| | - Ming-Hsin Yang
- Division of Urology, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan; (C.-L.C.); (E.M.); (S.-T.W.); (M.-H.Y.); (C.-W.T.); (C.-C.K.)
| | - Chih-Wei Tsao
- Division of Urology, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan; (C.-L.C.); (E.M.); (S.-T.W.); (M.-H.Y.); (C.-W.T.); (C.-C.K.)
| | - Chien-Chang Kao
- Division of Urology, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan; (C.-L.C.); (E.M.); (S.-T.W.); (M.-H.Y.); (C.-W.T.); (C.-C.K.)
| | - Yi-Lin Chiu
- Department of Biochemistry, National Defense Medical Center, Taipei 11490, Taiwan; (H.-F.L.); (Y.-S.L.)
- Correspondence: ; Tel.: +886-2-8792-3100 (ext. 18828)
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Okuniewska M, Fang V, Baeyens A, Raghavan V, Lee JY, Littman DR, Schwab SR. SPNS2 enables T cell egress from lymph nodes during an immune response. Cell Rep 2021; 36:109368. [PMID: 34260944 PMCID: PMC8351797 DOI: 10.1016/j.celrep.2021.109368] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 03/24/2021] [Accepted: 06/17/2021] [Indexed: 01/27/2023] Open
Abstract
T cell expression of sphingosine 1-phosphate (S1P) receptor 1 (S1PR1) enables T cell exit from lymph nodes (LNs) into lymph, while endothelial S1PR1 expression regulates vascular permeability. Drugs targeting S1PR1 treat autoimmune disease by trapping pathogenic T cells within LNs, but they have adverse cardiovascular side effects. In homeostasis, the transporter SPNS2 supplies lymph S1P and enables T cell exit, while the transporter MFSD2B supplies most blood S1P and supports vascular function. It is unknown whether SPNS2 remains necessary to supply lymph S1P during an immune response, or whether in inflammation other compensatory transporters are upregulated. Here, using a model of dermal inflammation, we demonstrate that SPNS2 supplies the S1P that guides T cells out of LNs with an ongoing immune response. Furthermore, deletion of Spns2 is protective in a mouse model of multiple sclerosis. These results support the therapeutic potential of SPNS2 inhibitors to achieve spatially specific modulation of S1P signaling.
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Affiliation(s)
- Martyna Okuniewska
- Skirball Institute of Biomolecular Medicine, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Victoria Fang
- Skirball Institute of Biomolecular Medicine, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Audrey Baeyens
- Skirball Institute of Biomolecular Medicine, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Varsha Raghavan
- Skirball Institute of Biomolecular Medicine, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - June-Yong Lee
- Skirball Institute of Biomolecular Medicine, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Dan R Littman
- Skirball Institute of Biomolecular Medicine, New York University Grossman School of Medicine, New York, NY 10016, USA; Howard Hughes Medical Institute, New York, NY 10016, USA
| | - Susan R Schwab
- Skirball Institute of Biomolecular Medicine, New York University Grossman School of Medicine, New York, NY 10016, USA.
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Wirtz S, Schulz-Kuhnt A, Neurath MF, Atreya I. Functional Contribution and Targeted Migration of Group-2 Innate Lymphoid Cells in Inflammatory Lung Diseases: Being at the Right Place at the Right Time. Front Immunol 2021; 12:688879. [PMID: 34177944 PMCID: PMC8222800 DOI: 10.3389/fimmu.2021.688879] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 05/24/2021] [Indexed: 12/19/2022] Open
Abstract
During the last decade, group-2 innate lymphoid cells (ILC2s) have been discovered and successfully established as crucial mediators of lung allergy, airway inflammation and fibrosis, thus affecting the pathogenesis and clinical course of many respiratory diseases, like for instance asthma, cystic fibrosis and chronic rhinosinusitis. As an important regulatory component in this context, the local pulmonary milieu at inflammatory tissue sites does not only determine the activation status of lung-infiltrating ILC2s, but also influences their motility and migratory behavior. In general, many data collected in recent murine and human studies argued against the former concept of a very strict tissue residency of innate lymphoid cells (ILCs) and instead pointed to a context-dependent homing capacity of peripheral blood ILC precursors and the inflammation-dependent capacity of specific ILC subsets for interorgan trafficking. In this review article, we provide a comprehensive overview of the so far described molecular mechanisms underlying the pulmonary migration of ILC2s and thereby the numeric regulation of local ILC2 pools at inflamed or fibrotic pulmonary tissue sites and discuss their potential to serve as innovative therapeutic targets in the treatment of inflammatory lung diseases.
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Affiliation(s)
- Stefan Wirtz
- Department of Medicine 1, University Hospital of Erlangen, Erlangen, Germany
| | - Anja Schulz-Kuhnt
- Department of Medicine 1, University Hospital of Erlangen, Erlangen, Germany
| | - Markus F. Neurath
- Department of Medicine 1, University Hospital of Erlangen, Erlangen, Germany
- Deutsches Zentrum Immuntherapie (DZI), Erlangen, Germany
| | - Imke Atreya
- Department of Medicine 1, University Hospital of Erlangen, Erlangen, Germany
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30
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Luker GD, Yang J, Richmond A, Scala S, Festuccia C, Schottelius M, Wester HJ, Zimmermann J. At the Bench: Pre-clinical evidence for multiple functions of CXCR4 in cancer. J Leukoc Biol 2021; 109:969-989. [PMID: 33104270 PMCID: PMC8254203 DOI: 10.1002/jlb.2bt1018-715rr] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 10/05/2020] [Accepted: 10/06/2020] [Indexed: 12/15/2022] Open
Abstract
Signaling through chemokine receptor, C-X-C chemokine receptor type 4 (CXCR4) regulates essential processes in normal physiology, including embryogenesis, tissue repair, angiogenesis, and trafficking of immune cells. Tumors co-opt many of these fundamental processes to directly stimulate proliferation, invasion, and metastasis of cancer cells. CXCR4 signaling contributes to critical functions of stromal cells in cancer, including angiogenesis and multiple cell types in the tumor immune environment. Studies in animal models of several different types of cancers consistently demonstrate essential functions of CXCR4 in tumor initiation, local invasion, and metastasis to lymph nodes and distant organs. Data from animal models support clinical observations showing that integrated effects of CXCR4 on cancer and stromal cells correlate with metastasis and overall poor prognosis in >20 different human malignancies. Small molecules, Abs, and peptidic agents have shown anticancer efficacy in animal models, sparking ongoing efforts at clinical translation for cancer therapy. Investigators also are developing companion CXCR4-targeted imaging agents with potential to stratify patients for CXCR4-targeted therapy and monitor treatment efficacy. Here, pre-clinical studies demonstrating functions of CXCR4 in cancer are reviewed.
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Affiliation(s)
- Gary D Luker
- Departments of Radiology, Biomedical Engineering, and Microbiology and Immunology, University of Michigan, Ann Arbor, Michigan, USA
| | - Jinming Yang
- School of Medicine, Vanderbilt University, Nashville, Tennessee, USA
| | - Ann Richmond
- School of Medicine, Vanderbilt University, Nashville, Tennessee, USA
| | - Stefania Scala
- Research Department, Microenvironment Molecular Targets, Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale", Napoli, Italy
| | - Claudio Festuccia
- Department of Applied Clinical Science and Biotechnologies, Laboratory of Radiobiology, University of L'Aquila, L'Aquila, Italy
| | - Margret Schottelius
- Department of Nuclear Medicine, Centre Hospitalier Universitaire Vaudois, and Department of Oncology, University of Lausanne, Lausanne, Switzerland
| | - Hans-Jürgen Wester
- Department of Chemistry, Technical University of Munich, Garching, Germany
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31
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Swan G, Geng J, Park E, Ding Q, Zhou J, Walcott C, Zhang JJ, Huang HI, Hammer GE, Wang D. A Requirement of Protein Geranylgeranylation for Chemokine Receptor Signaling and Th17 Cell Function in an Animal Model of Multiple Sclerosis. Front Immunol 2021; 12:641188. [PMID: 33828552 PMCID: PMC8019753 DOI: 10.3389/fimmu.2021.641188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 02/24/2021] [Indexed: 12/05/2022] Open
Abstract
Precisely controlled lymphocyte migration is critically required for immune surveillance and successful immune responses. Lymphocyte migration is strictly regulated by chemokines and chemokine receptors. Here we show that protein geranylgeranylation, a form of post-translational protein lipid modification, is required for chemokine receptor-proximal signaling. Mature thymocytes deficient for protein geranylgeranylation are impaired for thymus egress. Circulating mature T cells lacking protein geranylgeranylation fail to home to secondary lymphoid organs or to transmigrate in response to chemokines in vitro. Mechanistically, protein geranylgeranylation modifies the γ-subunits of the heterotrimeric small GTPases that are essential for chemokine receptor signaling. In addition, protein geranylgeranylation also promotes the differentiation of IL-17-producing T helper cells while inhibiting the differentiation of Foxp3+ regulatory T cells. Finally, mice with T cell lineage-specific deficiency of protein geranylgeranylation are resistant to experimental autoimmune encephalomyelitis induction. This study elucidated a critical role of protein geranylgeranylation in regulating T lymphocyte migration and function.
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Affiliation(s)
- Gregory Swan
- Division of Rheumatology and Immunology, Department of Medicine, Duke University School of Medicine, Durham, NC, United States
- Department of Immunology, Duke University School of Medicine, Durham, NC, United States
| | - Jia Geng
- Division of Rheumatology and Immunology, Department of Medicine, Duke University School of Medicine, Durham, NC, United States
| | - Eunchong Park
- Department of Immunology, Duke University School of Medicine, Durham, NC, United States
| | - Quanquan Ding
- Division of Rheumatology and Immunology, Department of Medicine, Duke University School of Medicine, Durham, NC, United States
| | - John Zhou
- Division of Rheumatology and Immunology, Department of Medicine, Duke University School of Medicine, Durham, NC, United States
| | - Ciana Walcott
- Division of Rheumatology and Immunology, Department of Medicine, Duke University School of Medicine, Durham, NC, United States
| | - Junyi J. Zhang
- Department of Immunology, Duke University School of Medicine, Durham, NC, United States
| | - Hsin-I Huang
- Department of Immunology, Duke University School of Medicine, Durham, NC, United States
| | - Gianna Elena Hammer
- Department of Immunology, Duke University School of Medicine, Durham, NC, United States
| | - Donghai Wang
- Division of Rheumatology and Immunology, Department of Medicine, Duke University School of Medicine, Durham, NC, United States
- Department of Immunology, Duke University School of Medicine, Durham, NC, United States
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32
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Sasso MS, Mitrousis N, Wang Y, Briquez PS, Hauert S, Ishihara J, Hubbell JA, Swartz MA. Lymphangiogenesis-inducing vaccines elicit potent and long-lasting T cell immunity against melanomas. SCIENCE ADVANCES 2021; 7:eabe4362. [PMID: 33762337 PMCID: PMC7990326 DOI: 10.1126/sciadv.abe4362] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 01/22/2021] [Indexed: 05/06/2023]
Abstract
In melanoma, the induction of lymphatic growth (lymphangiogenesis) has long been correlated with metastasis and poor prognosis, but we recently showed it can synergistically enhance cancer immunotherapy and boost T cell immunity. Here, we develop a translational approach for exploiting this "lymphangiogenic potentiation" of immunotherapy in a cancer vaccine using lethally irradiated tumor cells overexpressing vascular endothelial growth factor C (VEGF-C) and topical adjuvants. Our "VEGFC vax" induced extensive local lymphangiogenesis and promoted stronger T cell activation in both the intradermal vaccine site and draining lymph nodes, resulting in higher frequencies of antigen-specific T cells present systemically than control vaccines. In mouse melanoma models, VEGFC vax elicited potent tumor-specific T cell immunity and provided effective tumor control and long-term immunological memory. Together, these data introduce the potential of lymphangiogenesis induction as a novel immunotherapeutic strategy to consider in cancer vaccine design.
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Affiliation(s)
- Maria Stella Sasso
- Pritzker School for Molecular Engineering, University of Chicago, Chicago, IL, USA.
| | - Nikolaos Mitrousis
- Pritzker School for Molecular Engineering, University of Chicago, Chicago, IL, USA
| | - Yue Wang
- Pritzker School for Molecular Engineering, University of Chicago, Chicago, IL, USA
| | - Priscilla S Briquez
- Pritzker School for Molecular Engineering, University of Chicago, Chicago, IL, USA
| | - Sylvie Hauert
- Pritzker School for Molecular Engineering, University of Chicago, Chicago, IL, USA
| | - Jun Ishihara
- Pritzker School for Molecular Engineering, University of Chicago, Chicago, IL, USA
| | - Jeffrey A Hubbell
- Pritzker School for Molecular Engineering, University of Chicago, Chicago, IL, USA
| | - Melody A Swartz
- Pritzker School for Molecular Engineering, University of Chicago, Chicago, IL, USA.
- Ben May Department for Cancer Research, University of Chicago, Chicago, IL, USA
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Feng A, Ma W, Faraj R, Kelly GT, Black SM, Fallon MB, Wang T. Identification of S1PR3 gene signature involved in survival of sepsis patients. BMC Med Genomics 2021; 14:43. [PMID: 33549110 PMCID: PMC7866676 DOI: 10.1186/s12920-021-00886-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 01/25/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Sepsis is a life-threatening complication of infection that rapidly triggers tissue damage in multiple organ systems and leads to multi-organ deterioration. Up to date, prognostic biomarkers still have limitations in predicting the survival of patients with sepsis. We need to discover more prognostic biomarkers to improve the sensitivity and specificity of the prognosis of sepsis patients. Sphingosine-1-phosphate (S1P) receptor 3 (S1PR3), as one of the S1P receptors, is a prospective prognostic biomarker regulating sepsis-relevant events, including compromised vascular integrity, antigen presentation, and cytokine secretion. Until now, no S1PR3-related prognostic gene signatures for sepsis patients have been found. METHODS This study intends to obtain an S1PR3-associated gene signature from whole blood samples to be utilized as a probable prognostic tool for patients with sepsis. RESULTS We obtained an 18-gene S1PR3-related molecular signature (S3MS) from the intersection of S1PR3-associated genes and survival-associated genes. Numerous important immunity pathways that regulate the progression of sepsis are enriched among our 18 genes. Significantly, S3MS functions greatly in both the discovery and validation cohort. Furthermore, we demonstrated that S3MS obtains significantly better classification performance than random 18-gene signatures. CONCLUSIONS Our results confirm the key role of S1PR3-associated genes in the development of sepsis, which will be a potential prognostic biomarker for patients with sepsis. Our results also focus on the classification performance of our S3MS as biomarkers for sepsis, which could also provide an early warning system for patients with sepsis.
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Affiliation(s)
- Anlin Feng
- Department of Internal Medicine, College of Medicine-Phoenix, University of Arizona, 475 N. 5th Street, Phoenix, AZ, 85004, USA
| | - Wenli Ma
- Department of Internal Medicine, College of Medicine-Phoenix, University of Arizona, 475 N. 5th Street, Phoenix, AZ, 85004, USA
| | - Reem Faraj
- Department of Internal Medicine, College of Medicine-Phoenix, University of Arizona, 475 N. 5th Street, Phoenix, AZ, 85004, USA
| | - Gabriel T Kelly
- Department of Internal Medicine, College of Medicine-Phoenix, University of Arizona, 475 N. 5th Street, Phoenix, AZ, 85004, USA
| | - Stephen M Black
- Department of Medicine, College of Medicine-Tucson, University of Arizona, Tucson, AZ, USA
| | - Michael B Fallon
- Department of Internal Medicine, College of Medicine-Phoenix, University of Arizona, 475 N. 5th Street, Phoenix, AZ, 85004, USA
| | - Ting Wang
- Department of Internal Medicine, College of Medicine-Phoenix, University of Arizona, 475 N. 5th Street, Phoenix, AZ, 85004, USA.
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Tindemans I, van Schoonhoven A, KleinJan A, de Bruijn MJ, Lukkes M, van Nimwegen M, van den Branden A, Bergen IM, Corneth OB, van IJcken WF, Stadhouders R, Hendriks RW. Notch signaling licenses allergic airway inflammation by promoting Th2 cell lymph node egress. J Clin Invest 2021; 130:3576-3591. [PMID: 32255764 DOI: 10.1172/jci128310] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 03/24/2020] [Indexed: 12/27/2022] Open
Abstract
Allergic asthma is mediated by Th2 responses to inhaled allergens. Although previous experiments indicated that Notch signaling activates expression of the key Th2 transcription factor Gata3, it remains controversial how Notch promotes allergic airway inflammation. Here we show that T cell-specific Notch deficiency in mice prevented house dust mite-driven eosinophilic airway inflammation and significantly reduced Th2 cytokine production, serum IgE levels, and airway hyperreactivity. However, transgenic Gata3 overexpression in Notch-deficient T cells only partially rescued this phenotype. We found that Notch signaling was not required for T cell proliferation or Th2 polarization. Instead, Notch-deficient in vitro-polarized Th2 cells showed reduced accumulation in the lungs upon in vivo transfer and allergen challenge, as Notch-deficient Th2 cells were retained in the lung-draining lymph nodes. Transcriptome analyses and sequential adoptive transfer experiments revealed that while Notch-deficient lymph node Th2 cells established competence for lung migration, they failed to upregulate sphingosine-1-phosphate receptor 1 (S1PR1) and its critical upstream transcriptional activator Krüppel-like factor 2 (KLF2). As this KLF2/S1PR1 axis represents the essential cell-intrinsic regulator of T cell lymph node egress, we conclude that the druggable Notch signaling pathway licenses the Th2 response in allergic airway inflammation via promoting lymph node egress.
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35
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Creed HA, Rutkowski JM. Emerging roles for lymphatics in acute kidney injury: Beneficial or maleficent? Exp Biol Med (Maywood) 2021; 246:845-850. [PMID: 33467886 DOI: 10.1177/1535370220983235] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Acute kidney injury, a sudden decline in renal filtration, is a surprisingly common pathology resulting from ischemic events, local or systemic infection, or drug-induced toxicity in the kidney. Unchecked, acute kidney injury can progress to renal failure and even recovered acute kidney injury patients are at an increased risk for developing future chronic kidney disease. The initial extent of inflammation, the specific immune response, and how well inflammation resolves are likely determinants in acute kidney injury-to-chronic kidney disease progression. Lymphatic vessels and their roles in fluid, solute, antigen, and immune cell transport make them likely to have a role in the acute kidney injury response. Lymphatics have proven to be an attractive target in regulating inflammation and immunomodulation in other pathologies: might these strategies be employed in acute kidney injury? Acute kidney injury studies have identified elevated levels of lymphangiogenic ligands following acute kidney injury, with an expansion of the lymphatics in several models post-injury. Manipulating the lymphatics in acute kidney injury, by augmenting or inhibiting their growth or through targeting lymphatic-immune interactions, has met with a range of positive, negative, and sometimes inconclusive results. This minireview briefly summarizes the findings of lymphatic changes and lymphatic roles in the inflammatory response in the kidney following acute kidney injury to discuss whether renal lymphatics are a beneficial, maleficent, or a passive contributor to acute kidney injury recovery.
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Affiliation(s)
- Heidi A Creed
- Division of Lymphatic Biology, Department of Medical Physiology, Texas A&M University College of Medicine, Bryan, TX 77807, USA
| | - Joseph M Rutkowski
- Division of Lymphatic Biology, Department of Medical Physiology, Texas A&M University College of Medicine, Bryan, TX 77807, USA
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36
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Verdon DJ, Mulazzani M, Jenkins MR. Cellular and Molecular Mechanisms of CD8 + T Cell Differentiation, Dysfunction and Exhaustion. Int J Mol Sci 2020; 21:ijms21197357. [PMID: 33027962 PMCID: PMC7582856 DOI: 10.3390/ijms21197357] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/01/2020] [Accepted: 10/02/2020] [Indexed: 02/07/2023] Open
Abstract
T cells follow a triphasic distinct pathway of activation, proliferation and differentiation before becoming functionally and phenotypically “exhausted” in settings of chronic infection, autoimmunity and in cancer. Exhausted T cells progressively lose canonical effector functions, exhibit altered transcriptional networks and epigenetic signatures and gain constitutive expression of a broad coinhibitory receptor suite. This review outlines recent advances in our understanding of exhausted T cell biology and examines cellular and molecular mechanisms by which a state of dysfunction or exhaustion is established, and mechanisms by which exhausted T cells may still contribute to pathogen or tumour control. Further, this review describes our understanding of exhausted T cell heterogeneity and outlines the mechanisms by which checkpoint blockade differentially engages exhausted T cell subsets to overcome exhaustion and recover T cell function.
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Affiliation(s)
- Daniel J. Verdon
- Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; (D.J.V.); (M.M.)
| | - Matthias Mulazzani
- Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; (D.J.V.); (M.M.)
| | - Misty R. Jenkins
- Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; (D.J.V.); (M.M.)
- Department of Medical Biology, The University of Melbourne, Parkville, VIC 3052, Australia
- Institute of Molecular Science, La Trobe University, Bundoora, VIC 3086, Australia
- Correspondence:
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37
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Sanz-Ortega L, Rojas JM, Barber DF. Improving Tumor Retention of Effector Cells in Adoptive Cell Transfer Therapies by Magnetic Targeting. Pharmaceutics 2020; 12:E812. [PMID: 32867162 PMCID: PMC7557387 DOI: 10.3390/pharmaceutics12090812] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/19/2020] [Accepted: 08/24/2020] [Indexed: 02/07/2023] Open
Abstract
Adoptive cell transfer therapy is a promising anti-tumor immunotherapy in which effector immune cells are transferred to patients to treat tumors. However, one of its main limitations is the inefficient trafficking of inoculated effector cells to the tumor site and the small percentage of effector cells that remain activated when reaching the tumor. Multiple strategies have been attempted to improve the entry of effector cells into the tumor environment, often based on tumor types. It would be, however, interesting to develop a more general approach, to improve and facilitate the migration of specific activated effector lymphoid cells to any tumor type. We and others have recently demonstrated the potential for adoptive cell transfer therapy of the combined use of magnetic nanoparticle-loaded lymphoid effector cells together with the application of an external magnetic field to promote the accumulation and retention of lymphoid cells in specific body locations. The aim of this review is to summarize and highlight the recent findings in the field of magnetic accumulation and retention of effector cells in tumors after adoptive transfer, and to discuss the possibility of using this approach for tumor targeting with chimeric antigen receptor (CAR) T-cells.
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Affiliation(s)
- Laura Sanz-Ortega
- Center for Hematology and Regenerative Medicine (HERM), Department of Medicine, Karolinska Institute, 14183 Stockholm, Sweden;
| | - José Manuel Rojas
- Animal Health Research Centre (CISA)-INIA, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, 28130 Madrid, Spain;
| | - Domingo F. Barber
- Department of Immunology and Oncology, and NanoBiomedicine Initiative, Centro Nacional de Biotecnología (CNB)-CSIC, 28049 Madrid, Spain
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38
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Meryk A, Pangrazzi L, Hagen M, Hatzmann F, Jenewein B, Jakic B, Hermann-Kleiter N, Baier G, Jylhävä J, Hurme M, Trieb K, Grubeck-Loebenstein B. Fcμ receptor as a Costimulatory Molecule for T Cells. Cell Rep 2020; 26:2681-2691.e5. [PMID: 30840890 DOI: 10.1016/j.celrep.2019.02.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 01/28/2019] [Accepted: 02/07/2019] [Indexed: 11/17/2022] Open
Abstract
Fc receptor for IgM (FcμR)-deficient mice display dysregulated function of neutrophils, dendritic cells, and B cells. The relevance of FcμR to human T cells is still unknown. We show that FcμR is mostly stored inside the cell and that surface expression is tightly regulated. Decreased surface expression on T cells from elderly individuals is associated with alterations in the methylation pattern of the FCMR gene. Binding and internalization of IgM stimulate transport of FcμR to the cell surface to ensure sustained IgM uptake. Concurrently, IgM accumulates within the cell, and the surface expression of other receptors increases, among them the T cell receptor (TCR) and costimulatory molecules. This leads to enhanced TCR signaling, proliferation, and cytokine release, in response to low, but not high, doses of antigen. Our findings indicate that FcμR is an important regulator of T cell function and reveal an additional mode of interaction between B and T cells.
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Affiliation(s)
- Andreas Meryk
- Department of Immunology, Institute for Biomedical Aging Research, University of Innsbruck, 6020 Innsbruck, Austria.
| | - Luca Pangrazzi
- Department of Immunology, Institute for Biomedical Aging Research, University of Innsbruck, 6020 Innsbruck, Austria
| | - Magdalena Hagen
- Department of Immunology, Institute for Biomedical Aging Research, University of Innsbruck, 6020 Innsbruck, Austria
| | - Florian Hatzmann
- Department of Immunology, Institute for Biomedical Aging Research, University of Innsbruck, 6020 Innsbruck, Austria
| | - Brigitte Jenewein
- Department of Immunology, Institute for Biomedical Aging Research, University of Innsbruck, 6020 Innsbruck, Austria
| | - Bojana Jakic
- Division of Translational Cell Genetics, Medical University of Innsbruck, 6020 Innsbruck, Austria
| | - Natascha Hermann-Kleiter
- Division of Translational Cell Genetics, Medical University of Innsbruck, 6020 Innsbruck, Austria
| | - Gottfried Baier
- Division of Translational Cell Genetics, Medical University of Innsbruck, 6020 Innsbruck, Austria
| | - Juulia Jylhävä
- Department of Medical Epidemiology and Biostatistics, Karolinska Institute, 17177 Stockholm, Sweden
| | - Mikko Hurme
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere 33014, Finland
| | - Klemens Trieb
- Department of Orthopedic Surgery, Hospital Wels-Grieskirchen, 4600 Wels, Austria
| | - Beatrix Grubeck-Loebenstein
- Department of Immunology, Institute for Biomedical Aging Research, University of Innsbruck, 6020 Innsbruck, Austria
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Abstract
The signaling lipid sphingosine 1-phosphate (S1P) plays critical roles in an immune response. Drugs targeting S1P signaling have been remarkably successful in treatment of multiple sclerosis, and they have shown promise in clinical trials for colitis and psoriasis. One mechanism of these drugs is to block lymphocyte exit from lymph nodes, where lymphocytes are initially activated, into circulation, from which lymphocytes can reach sites of inflammation. Indeed, S1P can be considered a circulation marker, signaling to immune cells to help them find blood and lymphatic vessels, and to endothelial cells to stabilize the vasculature. That said, S1P plays pleiotropic roles in the immune response, and it will be important to build an integrated view of how S1P shapes inflammation. S1P can function so effectively because its distribution is exquisitely tightly controlled. Here we review how S1P gradients regulate immune cell exit from tissues, with particular attention to key outstanding questions in the field.
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Affiliation(s)
- Audrey A.L. Baeyens
- Skirball Institute of Biomolecular Medicine, New York University School of Medicine, New York, NY 10016, USA;,
| | - Susan R. Schwab
- Skirball Institute of Biomolecular Medicine, New York University School of Medicine, New York, NY 10016, USA;,
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40
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Malo CS, Hickman HD. Tracing Antiviral CD8 + T Cell Responses Using In Vivo Imaging. THE JOURNAL OF IMMUNOLOGY 2020; 203:775-781. [PMID: 31383748 DOI: 10.4049/jimmunol.1900232] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 05/29/2019] [Indexed: 12/25/2022]
Abstract
Scientists have long valued the power of in vivo observation to answer fundamental biological questions. Over the last 20 years, the application and evolution of intravital microscopy (IVM) has vastly increased our ability to directly visualize immune responses as they are occurring in vivo after infection or immunization. Many IVM strategies employ a strong multiphoton laser that penetrates deeply into the tissues of living, anesthetized mice, allowing the precise tracking of the movement of cells as they navigate complex tissue environments. In the realm of viral infections, IVM has been applied to better understand many critical phases of effector T cell responses, from activation in the draining lymph node, to the execution of effector functions, and finally to the development of tissue-resident memory. In this review, we discuss seminal studies incorporating IVM that have advanced our understanding of the biology of antiviral CD8+ T cells.
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Affiliation(s)
- Courtney S Malo
- Viral Immunity and Pathogenesis Unit, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Heather D Hickman
- Viral Immunity and Pathogenesis Unit, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
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41
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Collaborative Cross Mice Yield Genetic Modifiers for Pseudomonas aeruginosa Infection in Human Lung Disease. mBio 2020; 11:mBio.00097-20. [PMID: 32127447 PMCID: PMC7064750 DOI: 10.1128/mbio.00097-20] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Respiratory infection caused by P. aeruginosa is one of the most critical health burdens worldwide. People affected by P. aeruginosa infection include patients with a weakened immune system, such as those with cystic fibrosis (CF) genetic disease or non-CF bronchiectasis. Disease outcomes range from fatal pneumonia to chronic life-threatening infection and inflammation leading to the progressive deterioration of pulmonary function. The development of these respiratory infections is mediated by multiple causes. However, the genetic factors underlying infection susceptibility are poorly known and difficult to predict. Our study employed novel approaches and improved mouse disease models to identify genetic modifiers that affect the severity of P. aeruginosa lung infection. We identified candidate genes to enhance our understanding of P. aeruginosa infection in humans and provide a proof of concept that could be exploited for other human pathologies mediated by bacterial infection. Human genetics influence a range of pathological and clinical phenotypes in respiratory infections; however, the contributions of disease modifiers remain underappreciated. We exploited the Collaborative Cross (CC) mouse genetic-reference population to map genetic modifiers that affect the severity of Pseudomonas aeruginosa lung infection. Screening for P. aeruginosa respiratory infection in a cohort of 39 CC lines exhibits distinct disease phenotypes ranging from complete resistance to lethal disease. Based on major changes in the survival times, a quantitative-trait locus (QTL) was mapped on murine chromosome 3 to the genomic interval of Mb 110.4 to 120.5. Within this locus, composed of 31 protein-coding genes, two candidate genes, namely, dihydropyrimidine dehydrogenase (Dpyd) and sphingosine-1-phosphate receptor 1 (S1pr1), were identified according to the level of genome-wide significance and disease gene prioritization. Functional validation of the S1pr1 gene by pharmacological targeting in C57BL/6NCrl mice confirmed its relevance in P. aeruginosa pathophysiology. However, in a cohort of Canadian patients with cystic fibrosis (CF) disease, regional genetic-association analysis of the syntenic human locus on chromosome 1 (Mb 97.0 to 105.0) identified two single-nucleotide polymorphisms (rs10875080 and rs11582736) annotated to the Dpyd gene that were significantly associated with age at first P. aeruginosa infection. Thus, there is evidence that both genes might be implicated in this disease. Our results demonstrate that the discovery of murine modifier loci may generate information that is relevant to human disease progression.
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42
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Eckert N, Permanyer M, Yu K, Werth K, Förster R. Chemokines and other mediators in the development and functional organization of lymph nodes. Immunol Rev 2020; 289:62-83. [PMID: 30977201 DOI: 10.1111/imr.12746] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 01/22/2019] [Indexed: 12/28/2022]
Abstract
Secondary lymphoid organs like lymph nodes (LNs) are the main inductive sites for adaptive immune responses. Lymphocytes are constantly entering LNs, scanning the environment for their cognate antigen and get replenished by incoming cells after a certain period of time. As only a minor percentage of lymphocytes recognizes cognate antigen, this mechanism of permanent recirculation ensures fast and effective immune responses when necessary. Thus, homing, positioning, and activation as well as egress require precise regulation within LNs. In this review we discuss the mediators, including chemokines, cytokines, growth factors, and others that are involved in the formation of the LN anlage and subsequent functional organization of LNs. We highlight very recent findings in the fields of LN development, steady-state migration in LNs, and the intranodal processes during an adaptive immune response.
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Affiliation(s)
- Nadine Eckert
- Institute of Immunology, Hannover Medical School, Hannover, Germany
| | - Marc Permanyer
- Institute of Immunology, Hannover Medical School, Hannover, Germany
| | - Kai Yu
- Institute of Immunology, Hannover Medical School, Hannover, Germany
| | - Kathrin Werth
- Institute of Immunology, Hannover Medical School, Hannover, Germany
| | - Reinhold Förster
- Institute of Immunology, Hannover Medical School, Hannover, Germany.,Cluster of Excellence RESIST (EXC 2155), Hannover Medical School, Hannover, Germany
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43
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Mempel TR, Marangoni F. Guidance factors orchestrating regulatory T cell positioning in tissues during development, homeostasis, and response. Immunol Rev 2020; 289:129-141. [PMID: 30977195 DOI: 10.1111/imr.12761] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 03/20/2019] [Accepted: 03/21/2019] [Indexed: 12/29/2022]
Abstract
Over their lifetime, regulatory T cells (Treg) recalibrate their expression of trafficking receptors multiple times as they progress through development, respond to immune challenges, or adapt to the requirements of functioning in various non-lymphoid tissue environments. These trafficking receptors, which include chemokine receptors and other G-protein coupled receptors, integrins, as well as selectins and their ligands, enable Treg not only to enter appropriate tissues from the bloodstream via post-capillary venules, but also to navigate these tissues to locally execute their immune-regulatory functions, and finally to seek out the right antigen-presenting cells and interact with these, in part in order to receive the signals that sustain their survival, proliferation, and functional activity, in part in order to execute their immuno-regulatory function by altering antigen presenting cell function. Here, we will review our current knowledge of when and in what ways Treg alter their trafficking properties. We will focus on the chemokine system and try to identify specialized, non-redundant roles of individual receptors as well as similarities and differences to the conventional T cell compartment.
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Affiliation(s)
- Thorsten R Mempel
- The Center for Immunology and Inflammatory Diseases at Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Francesco Marangoni
- The Center for Immunology and Inflammatory Diseases at Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
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44
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Stein JV, Ruef N. Regulation of global CD8 + T-cell positioning by the actomyosin cytoskeleton. Immunol Rev 2020; 289:232-249. [PMID: 30977193 DOI: 10.1111/imr.12759] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 02/04/2019] [Accepted: 02/06/2019] [Indexed: 12/12/2022]
Abstract
CD8+ T cells have evolved as one of the most motile mammalian cell types, designed to continuously scan peptide-major histocompatibility complexes class I on the surfaces of other cells. Chemoattractants and adhesion molecules direct CD8+ T-cell homing to and migration within secondary lymphoid organs, where these cells colocalize with antigen-presenting dendritic cells in confined tissue volumes. CD8+ T-cell activation induces a switch to infiltration of non-lymphoid tissue (NLT), which differ in their topology and biophysical properties from lymphoid tissue. Here, we provide a short overview on regulation of organism-wide trafficking patterns during naive T-cell recirculation and their switch to non-lymphoid tissue homing during activation. The migratory lifestyle of CD8+ T cells is regulated by their actomyosin cytoskeleton, which translates chemical signals from surface receptors into mechanical work. We explore how properties of the actomyosin cytoskeleton and its regulators affect CD8+ T cell function in lymphoid and non-lymphoid tissue, combining recent findings in the field of cell migration and actin network regulation with tissue anatomy. Finally, we hypothesize that under certain conditions, intrinsic regulation of actomyosin dynamics may render NLT CD8+ T-cell populations less dependent on input from extrinsic signals during tissue scanning.
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Affiliation(s)
- Jens V Stein
- Department of Oncology, Microbiology and Immunology, University of Fribourg, Fribourg, Switzerland
| | - Nora Ruef
- Department of Oncology, Microbiology and Immunology, University of Fribourg, Fribourg, Switzerland
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45
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Okimoto A, Yamamoto R, Hirose J, Shimatani K, Koshika T, Maeda M, Hattori K, Morokata T. ASP1126, a Novel Sphingosine-1-Phosphate-Selective Agonist With a Favorable Safety Profile, Prolongs Allograft Survival in Rats and Nonhuman Primates in Combination With Tacrolimus With a Broad Safety Margin for Bradycardia. Transplant Proc 2019; 51:2081-2098. [PMID: 31399186 DOI: 10.1016/j.transproceed.2019.05.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 05/07/2019] [Indexed: 11/28/2022]
Abstract
Sphingosine-1-phosphate (S1P) is a biologically active sphingolipid that acts through the members of a family of 5 G protein-coupled receptors (S1P1 to S1P5). Among these, S1P1 is a major regulator of lymphocyte trafficking. Fingolimod, whose active metabolite, fingolimod phosphate, acts as a nonselective S1P-receptor agonist, exerts its immunomodulatory effect, at least in part, by regulating lymphocyte trafficking via downregulation of S1P1 expression on lymphocytes. Here, we describe the pharmacologic profile of a novel S1P1 agonist, ASP1126. ASP1126 preferentially activated S1P1 compared to S1P3 in rat and human guanosine-5'-(γ-thio)-triphosphate (GTPγS) assays. Oral single administration of ASP1126 decreased the number of peripheral lymphocytes and repeated dosing showed a cumulative effect on lymphopenia in both rats and monkeys. ASP1126 prolonged allograft survival in a rat heterotopic heart transplantation model in combination with a subtherapeutic dose of tacrolimus that was independent of drug-drug interactions. In addition, in nonhuman primate (NHP) renal transplantation, pretreatment with ASP1126 reduced not only the number of naive T cells and central memory T cells but also effector memory T cells in the peripheral blood, all of which could contribute to acute graft rejection and prolonged allograft survival in combination with tacrolimus. Further, we confirmed that ASP1126 has a broad ranging safety margin with respect to its effect on lung weight in rats and bradycardia in NHPs, which were the adverse events found in clinical studies of fingolimod. ASP1126 with improved safety profile has the potential to be an adjunct therapy in combination with tacrolimus in clinical transplantation.
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Affiliation(s)
- Akira Okimoto
- Drug Discovery Research, Astellas Pharma Inc, Ibaraki, Japan.
| | - Rie Yamamoto
- Drug Discovery Research, Astellas Pharma Inc, Ibaraki, Japan
| | - Jun Hirose
- Drug Discovery Research, Astellas Pharma Inc, Ibaraki, Japan
| | | | | | - Masashi Maeda
- Drug Discovery Research, Astellas Pharma Inc, Ibaraki, Japan
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46
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Sanz-Ortega L, Rojas JM, Marcos A, Portilla Y, Stein JV, Barber DF. T cells loaded with magnetic nanoparticles are retained in peripheral lymph nodes by the application of a magnetic field. J Nanobiotechnology 2019; 17:14. [PMID: 30670029 PMCID: PMC6341614 DOI: 10.1186/s12951-019-0440-z] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 01/03/2019] [Indexed: 01/07/2023] Open
Abstract
Background T lymphocytes are highly dynamic elements of the immune system with a tightly regulated migration. T cell-based transfer therapies are promising therapeutic approaches which in vivo efficacy is often limited by the small proportion of administered cells that reaches the region of interest. Manipulating T cell localisation to improve specific targeting will increase the effectiveness of these therapies. Nanotechnology has been successfully used for localized release of drugs and biomolecules. In particular, magnetic nanoparticles (MNPs) loaded with biomolecules can be specifically targeted to a location by an external magnetic field (EMF). The present work studies whether MNP-loaded T cells could be targeted and retained in vitro and in vivo at a site of interest with an EMF. Results T cells were unable to internalize the different MNPs used in this study, which remained in close association with the cell membrane. T cells loaded with an appropriate MNP concentration were attracted to an EMF and retained in an in vitro capillary flow-system. MNP-loaded T cells were also magnetically retained in the lymph nodes after adoptive transfer in in vivo models. This enhanced in vivo retention was in part due to the EMF application and to a reduced circulating cell speed within the organ. This combined use of MNPs and EMFs did not alter T cell viability or function. Conclusions These studies reveal a promising approach to favour cell retention that could be implemented to improve cell-based therapy.![]() Electronic supplementary material The online version of this article (10.1186/s12951-019-0440-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Laura Sanz-Ortega
- Department of Immunology and Oncology, and NanoBiomedicine Initiative, Centro Nacional de Biotecnología (CNB)-CSIC, Darwin 3, Cantoblanco, 28049, Madrid, Spain
| | - José M Rojas
- Department of Immunology and Oncology, and NanoBiomedicine Initiative, Centro Nacional de Biotecnología (CNB)-CSIC, Darwin 3, Cantoblanco, 28049, Madrid, Spain.,Animal Health Research Centre (CISA)-INIA, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Valdeolmos, 28130, Madrid, Spain
| | - Ana Marcos
- Theodor Kocher Institute, University of Bern, 3012, Bern, Switzerland.,Section of Medicine, Department of Oncology, Microbiology and Immunology, University of Fribourg, 1700, Fribourg, Switzerland
| | - Yadileiny Portilla
- Department of Immunology and Oncology, and NanoBiomedicine Initiative, Centro Nacional de Biotecnología (CNB)-CSIC, Darwin 3, Cantoblanco, 28049, Madrid, Spain
| | - Jens V Stein
- Theodor Kocher Institute, University of Bern, 3012, Bern, Switzerland.,Section of Medicine, Department of Oncology, Microbiology and Immunology, University of Fribourg, 1700, Fribourg, Switzerland
| | - Domingo F Barber
- Department of Immunology and Oncology, and NanoBiomedicine Initiative, Centro Nacional de Biotecnología (CNB)-CSIC, Darwin 3, Cantoblanco, 28049, Madrid, Spain.
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47
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Fingolimod can act as a facilitator to establish the primary T-cell response with reduced need of adjuvants. Vaccine 2018; 36:7632-7640. [PMID: 30392766 DOI: 10.1016/j.vaccine.2018.10.090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 10/20/2018] [Accepted: 10/27/2018] [Indexed: 11/24/2022]
Abstract
The CD8+ T-cell response is an essential part of the adaptive immunity. Adjuvants are routinely required for priming of T cells against antigens encountered in lymph nodes (LNs) to generate antigen-specific immunity but may concomitantly trigger unexpected inflammatory responses. Sphingosine-1-phosphate (S1P) induces transient desensitization of S1P receptors on LN T cells and temporarily blocks their egress, leading to prolonged intranodal retention that allows effective immunosurveillance and increases the chance of priming. In light of the regulatory role of S1P in T-cell migration, we here develop a strategic approach to the T-cell priming with protein vaccine containing low-dose TLR-based adjuvants (LDAV) to induce antigen-specific CD8+ T cell responses as efficiently as using regular dose adjuvants in vaccine (RDAV). We found that when combined with one low dose of the S1P analog fingolimod administered into the same vaccination site posteriorly at a specific time, LDAV can elicit a primary response that reaches the level of that induced by RDAV with respect to the response magnitude and functionality. Time-course studies indicate that LDAV and fingolimod in combination act to mimic the expansion kinetics of RDAV-primed antigen-specific CD8+ T cells. Further, intranodal accumulation of cDC1 is markedly enhanced in mice receiving the combination vaccination despite the decrease in adjuvant use. Of particular note is the marginal cutaneous inflammation at the injection site, indicating an added benefit of using fingolimod. Therefore, fingolimod as a nonadjuvant agent essentially facilitates antigen-specific T-cell priming with reduced need of adjuvants and minimized adverse reactions.
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48
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Baliu-Piqué M, Verheij MW, Drylewicz J, Ravesloot L, de Boer RJ, Koets A, Tesselaar K, Borghans JAM. Short Lifespans of Memory T-cells in Bone Marrow, Blood, and Lymph Nodes Suggest That T-cell Memory Is Maintained by Continuous Self-Renewal of Recirculating Cells. Front Immunol 2018; 9:2054. [PMID: 30254637 PMCID: PMC6141715 DOI: 10.3389/fimmu.2018.02054] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 08/20/2018] [Indexed: 11/13/2022] Open
Abstract
Memory T-cells are essential to maintain long-term immunological memory. It is widely thought that the bone marrow (BM) plays an important role in the long-term maintenance of memory T-cells. There is controversy however on the longevity and recirculating kinetics of BM memory T-cells. While some have proposed that the BM is a reservoir for long-lived, non-circulating memory T-cells, it has also been suggested to be the preferential site for memory T-cell self-renewal. In this study, we used in vivo deuterium labeling in goats to simultaneously quantify the average turnover rates—and thereby expected lifespans—of memory T-cells from BM, blood and lymph nodes (LN). While the fraction of Ki-67 positive cells, a snapshot marker for recent cell division, was higher in memory T-cells from blood compared to BM and LN, in vivo deuterium labeling revealed no substantial differences in the expected lifespans of memory T-cells between these compartments. Our results support the view that the majority of memory T-cells in the BM are self-renewing as fast as those in the periphery, and are continuously recirculating between the blood, BM, and LN.
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Affiliation(s)
- Mariona Baliu-Piqué
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Myrddin W Verheij
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Julia Drylewicz
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Lars Ravesloot
- Department of Bacteriology and Epidemiology, Wageningen Bioveterinary Research, Lelystad, Netherlands.,Department of Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - Rob J de Boer
- Theoretical Biology, Utrecht University, Utrecht, Netherlands
| | - Ad Koets
- Department of Bacteriology and Epidemiology, Wageningen Bioveterinary Research, Lelystad, Netherlands.,Department of Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - Kiki Tesselaar
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht, Netherlands
| | - José A M Borghans
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht, Netherlands
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49
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Abstract
Studies of bioactive lipids in general and sphingolipids in particular have intensified over the past several years, revealing an unprecedented and unanticipated complexity of the lipidome and its many functions, which rivals, if not exceeds, that of the genome or proteome. These results highlight critical roles for bioactive sphingolipids in most, if not all, major cell biological responses, including all major cell signalling pathways, and they link sphingolipid metabolism to key human diseases. Nevertheless, the fairly nascent field of bioactive sphingolipids still faces challenges in its biochemical and molecular underpinnings, including defining the molecular mechanisms of pathway and enzyme regulation, the study of lipid-protein interactions and the development of cellular probes, suitable biomarkers and therapeutic approaches.
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Affiliation(s)
- Yusuf A Hannun
- Stony Brook Cancer Center and Department of Medicine, Stony Brook University, New York 11794, USA
| | - Lina M Obeid
- Stony Brook Cancer Center and Department of Medicine, Stony Brook University, New York 11794, USA
- Northport Veterans Affairs Medical Center, Northport, New York 11768, USA
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50
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Kilgore AM, Welsh S, Cheney EE, Chitrakar A, Blain TJ, Kedl BJ, Hunter CA, Pennock ND, Kedl RM. IL-27p28 Production by XCR1 + Dendritic Cells and Monocytes Effectively Predicts Adjuvant-Elicited CD8 + T Cell Responses. Immunohorizons 2018; 2:1-11. [PMID: 29354801 PMCID: PMC5771264 DOI: 10.4049/immunohorizons.1700054] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
It is well accepted that the innate response is a necessary prerequisite to the formation of the adaptive response. This is true for T cell responses against infections or adjuvanted subunit vaccination. However, specific innate parameters with predictive value for the magnitude of an adjuvant-elicited T cell response have yet to be identified. We previously reported how T cell responses induced by subunit vaccination were dependent on the cytokine IL-27. These findings were unexpected, given that T cell responses to an infection typically increase in the absence of IL-27. Using a novel IL-27p28-eGFP reporter mouse, we now show that the degree to which an adjuvant induces IL-27p28 production from dendritic cells and monocytes directly predicts the magnitude of the T cell response elicited. To our knowledge, these data are the first to identify a concrete innate correlate of vaccine-elicited cellular immunity, and they have significant practical and mechanistic implications for subunit vaccine biology.
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Affiliation(s)
- Augustus M Kilgore
- Department of Immunology and Microbiology, School of Medicine, University of Colorado Denver at Anschutz Medical Campus, Denver, CO 80045
| | - Seth Welsh
- Department of Immunology and Microbiology, School of Medicine, University of Colorado Denver at Anschutz Medical Campus, Denver, CO 80045
| | - Elizabeth E Cheney
- Department of Immunology and Microbiology, School of Medicine, University of Colorado Denver at Anschutz Medical Campus, Denver, CO 80045
| | - Alisha Chitrakar
- Department of Immunology and Microbiology, School of Medicine, University of Colorado Denver at Anschutz Medical Campus, Denver, CO 80045
| | - Trevor J Blain
- Department of Immunology and Microbiology, School of Medicine, University of Colorado Denver at Anschutz Medical Campus, Denver, CO 80045
| | - Benjamin J Kedl
- Department of Immunology and Microbiology, School of Medicine, University of Colorado Denver at Anschutz Medical Campus, Denver, CO 80045
| | - Chris A Hunter
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Nathan D Pennock
- Department of Cell, Developmental & Cancer Biology, Oregon Health & Science University, Portland, OR 97239
| | - Ross M Kedl
- Department of Immunology and Microbiology, School of Medicine, University of Colorado Denver at Anschutz Medical Campus, Denver, CO 80045
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