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Zhu Y, Wang K, Yue L, Zuo D, Sheng J, Lan S, Zhao Z, Dong S, Hu S, Chen X, Feng M. Mesothelin CAR-T cells expressing tumor-targeted immunocytokine IL-12 yield durable efficacy and fewer side effects. Pharmacol Res 2024; 203:107186. [PMID: 38641176 DOI: 10.1016/j.phrs.2024.107186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 03/08/2024] [Accepted: 04/12/2024] [Indexed: 04/21/2024]
Abstract
Chimeric antigen receptor (CAR)-modified T cell therapy has achieved remarkable efficacy in treating hematological malignancies, but it confronts many challenges in treating solid tumors, such as the immunosuppressive microenvironment of the solid tumors. These factors reduce the antitumor activity of CAR-T cells in clinical trials. Therefore, we used the immunocytokine interleukin-12 (IL-12) to enhance the efficacy of CAR-T cell therapy. In this study, we engineered CAR-IL12R54 T cells that targeted mesothelin (MSLN) and secreted a single-chain IL-12 fused to a scFv fragment R54 that recognized a different epitope on mesothelin. The evaluation of the anti-tumor activity of the CAR-IL12R54 T cells alone or in combination with anti-PD-1 antibody in vitro and in vivo was followed by the exploration of the functional mechanism by which the immunocytokine IL-12 enhanced the antitumor activity. CAR-IL12R54 T cells had potency to lyse mesothelin positive tumor cells in vitro. In vivo studies demonstrated that CAR-IL12R54 T cells were effective in controlling the growth of established tumors in a xenograft mouse model with fewer side effects than CAR-T cells that secreted naked IL-12. Furthermore, combination of PD-1 blockade antibody with CAR-IL12R54 T cells elicited durable anti-tumor responses. Mechanistic studies showed that IL12R54 enhanced Interferon-γ (IFN-γ) production and dampened the activity of regulatory T cells (Tregs). IL12R54 also upregulated CXCR6 expression in the T cells through the NF-κB pathway, which facilitated T cell infiltration and persistence in the tumor tissues. In summary, the studies provide a good therapeutic option for the clinical treatment of solid tumors.
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Affiliation(s)
- Yuankui Zhu
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Ke Wang
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Linghe Yue
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Dianbao Zuo
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Junfeng Sheng
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Sina Lan
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Zilong Zhao
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Shuang Dong
- Department of Oncology, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430079, China
| | - Sheng Hu
- Department of Oncology, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430079, China.
| | - Xin Chen
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
| | - Mingqian Feng
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China; College of Biomedicine and Health, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
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Naidoo L, Arumugam T, Ramsuran V. Host Genetic Impact on Infectious Diseases among Different Ethnic Groups. ADVANCED GENETICS (HOBOKEN, N.J.) 2023; 4:2300181. [PMID: 38099246 PMCID: PMC10716055 DOI: 10.1002/ggn2.202300181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 09/11/2023] [Indexed: 12/17/2023]
Abstract
Infectious diseases such as malaria, tuberculosis (TB), human immunodeficiency virus (HIV), and the coronavirus disease of 2019 (COVID-19) are problematic globally, with high prevalence particularly in Africa, attributing to most of the death rates. There have been immense efforts toward developing effective preventative and therapeutic strategies for these pathogens globally, however, some remain uncured. Disease susceptibility and progression for malaria, TB, HIV, and COVID-19 vary among individuals and are attributed to precautionary measures, environment, host, and pathogen genetics. While studying individuals with similar attributes, it is suggested that host genetics contributes to most of an individual's susceptibility to disease. Several host genes are identified to associate with these pathogens. Interestingly, many of these genes and polymorphisms are common across diseases. This paper analyzes genes and genetic variations within host genes associated with HIV, TB, malaria, and COVID-19 among different ethnic groups. The differences in host-pathogen interaction among these groups, particularly of Caucasian and African descent, and which gene polymorphisms are prevalent in an African population that possesses protection or risk to disease are reviewed. The information in this review could potentially help develop personalized treatment that could effectively combat the high disease burden in Africa.
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Affiliation(s)
- Lisa Naidoo
- School of Laboratory Medicine and Medical SciencesCollege of Health SciencesUniversity of KwaZulu‐NatalDurban4041South Africa
| | - Thilona Arumugam
- School of Laboratory Medicine and Medical SciencesCollege of Health SciencesUniversity of KwaZulu‐NatalDurban4041South Africa
| | - Veron Ramsuran
- School of Laboratory Medicine and Medical SciencesCollege of Health SciencesUniversity of KwaZulu‐NatalDurban4041South Africa
- Centre for the AIDS Programme of Research in South Africa (CAPRISA)University of KwaZulu‐NatalDurban4041South Africa
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de Araújo JLF, Bonifácio VF, Batista LM, de Ávila RE, Aguiar RS, Bastos-Rodrigues L, de Souza RP. Association of 3p21.31 Locus (CXCR6 and LZTFL1) with COVID-19 Outcomes in Brazilian Hospitalyzed Subjects. Curr Microbiol 2023; 80:319. [PMID: 37578643 DOI: 10.1007/s00284-023-03437-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 08/02/2023] [Indexed: 08/15/2023]
Abstract
The 3p21.31 locus has been associated with severe COVID-19 prognosis in GWAS studies. Here, we evaluated whether three polymorphisms (LZTFL1 rs10490770, CXCR6 rs2234355 and rs2234358) in the reported locus were associated with the need for mechanical ventilation, hospitalization length and death in 102 COVID-19 hospitalized Brazilian subjects. No genetic association was found with the need for mechanical ventilation and hospitalization length. CXCR6 rs2234355 was associated with mortality under the codominance model, with carriers of the A/A genotype having a greater chance of death than A/G (OR: 10.5; 95% CI: 1.55-70.76). Our results further suggest that the CXCR6 genetic variant contributes to COVID-19 outcomes.
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Affiliation(s)
- João Locke Ferreira de Araújo
- Grupo de Pesquisa em Bioestatística e Epidemiologia Molecular, Laboratório de Biologia Integrativa, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Victória Frigério Bonifácio
- Departamento de Nutrição, Escola de Enfermagem, Universidade Federal de Minas Gerais, Minas Gerais - Brazil, Belo Horizonte, MG, Brazil
| | - Lorena Medeiros Batista
- Departamento de Nutrição, Escola de Enfermagem, Universidade Federal de Minas Gerais, Minas Gerais - Brazil, Belo Horizonte, MG, Brazil
| | | | - Renato Santana Aguiar
- Grupo de Pesquisa em Bioestatística e Epidemiologia Molecular, Laboratório de Biologia Integrativa, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
- Instituto D'OR de Pesquisa e Ensino, Rio de Janeiro, RJ, Brazil
| | - Luciana Bastos-Rodrigues
- Departamento de Nutrição, Escola de Enfermagem, Universidade Federal de Minas Gerais, Minas Gerais - Brazil, Belo Horizonte, MG, Brazil.
| | - Renan Pedra de Souza
- Grupo de Pesquisa em Bioestatística e Epidemiologia Molecular, Laboratório de Biologia Integrativa, Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.
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Vieira V, Lim N, Singh A, Leitman E, Dsouza R, Adland E, Muenchhoff M, Roider J, Marin Lopez M, Carabelli J, Giandhari J, Groll A, Jooste P, Prado JG, Thobakgale C, Dong K, Kiepiela P, Prendergast AJ, Tudor-Williams G, Frater J, Walker BD, Ndung’u T, Ramsuran V, Leslie A, Kløverpris HN, Goulder P. Slow progression of pediatric HIV associates with early CD8+ T cell PD-1 expression and a stem-like phenotype. JCI Insight 2023; 8:e156049. [PMID: 36602861 PMCID: PMC9977437 DOI: 10.1172/jci.insight.156049] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 12/29/2022] [Indexed: 01/06/2023] Open
Abstract
HIV nonprogression despite persistent viremia is rare among adults who are naive to antiretroviral therapy (ART) but relatively common among ART-naive children. Previous studies indicate that ART-naive pediatric slow progressors (PSPs) adopt immune evasion strategies similar to those described in natural hosts of SIV. However, the mechanisms underlying this immunophenotype are not well understood. In a cohort of early-treated infants who underwent analytical treatment interruption (ATI) after 12 months of ART, expression of PD-1 on CD8+ T cells immediately before ATI was the main predictor of slow progression during ATI. PD-1+CD8+ T cell frequency was also negatively correlated with CCR5 and HLA-DR expression on CD4+ T cells and predicted stronger HIV-specific T lymphocyte responses. In the CD8+ T cell compartment of PSPs, we identified an enrichment of stem-like TCF-1+PD-1+ memory cells, whereas pediatric progressors and viremic adults had a terminally exhausted PD-1+CD39+ population. TCF-1+PD-1+ expression on CD8+ T cells was associated with higher proliferative activity and stronger Gag-specific effector functionality. These data prompted the hypothesis that the proliferative burst potential of stem-like HIV-specific cytotoxic cells could be exploited in therapeutic strategies to boost the antiviral response and facilitate remission in infants who received early ART with a preserved and nonexhausted T cell compartment.
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Affiliation(s)
- Vinicius Vieira
- Department of Paediatrics, University of Oxford, Oxford, United Kingdom
| | - Nicholas Lim
- Department of Paediatrics, University of Oxford, Oxford, United Kingdom
| | - Alveera Singh
- Africa Health Research Institute, Durban, South Africa
| | - Ellen Leitman
- Department of Paediatrics, University of Oxford, Oxford, United Kingdom
| | - Reena Dsouza
- Department of Paediatrics, University of Oxford, Oxford, United Kingdom
| | - Emily Adland
- Department of Paediatrics, University of Oxford, Oxford, United Kingdom
| | - Maximilian Muenchhoff
- Max von Pettenkofer-Institute, Department of Virology, Ludwig-Maximilians-University, Munich, Germany
- German Center for Infection Research, Munich, Germany
| | - Julia Roider
- German Center for Infection Research, Munich, Germany
- Department of Infectious Diseases, Ludwig-Maximilians-University, Munich, Germany
| | | | | | - Jennifer Giandhari
- KwaZulu-Natal Research Innovation and Sequencing Platform, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - Andreas Groll
- Department of Statistics, TU Dortmund University, Dortmund, Germany
| | - Pieter Jooste
- Department of Paediatrics, Kimberley Hospital, Kimberley, South Africa
| | - Julia G. Prado
- IrsiCaixa AIDS Research Institute, Badalona, Spain
- Germans Trias i Pujol Research Institute, Badalona, Spain; Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - Christina Thobakgale
- Faculty of Health Sciences, Centre for HIV and STIs, National Institute for Communicable Diseases, University of the Witwatersrand, Johannesburg, South Africa
- HIV Pathogenesis Programme, Doris Duke Medical Research Institute, University of KwaZulu-Natal, Durban, South Africa
| | - Krista Dong
- Ragon Institute of MGH, MIT and Harvard, Cambridge, Massachusetts, USA
| | - Photini Kiepiela
- South African Medical Research Council, Durban, South Africa
- Wits Health Consortium, Johannesburg, South Africa
| | - Andrew J. Prendergast
- Blizard Institute, Queen Mary University of London, London, United Kingdom
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - Gareth Tudor-Williams
- Centre for Paediatrics and Child Health, Imperial College London, London, United Kingdom
| | - John Frater
- Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
- Oxford NIHR Biomedical Research Centre, Oxford, United Kingdom
| | - Bruce D. Walker
- Africa Health Research Institute, Durban, South Africa
- HIV Pathogenesis Programme, Doris Duke Medical Research Institute, University of KwaZulu-Natal, Durban, South Africa
- Ragon Institute of MGH, MIT and Harvard, Cambridge, Massachusetts, USA
| | - Thumbi Ndung’u
- Africa Health Research Institute, Durban, South Africa
- HIV Pathogenesis Programme, Doris Duke Medical Research Institute, University of KwaZulu-Natal, Durban, South Africa
- Ragon Institute of MGH, MIT and Harvard, Cambridge, Massachusetts, USA
- Division of Infection and Immunity, University College London, London, United Kingdom
| | - Veron Ramsuran
- School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, South Africa
- Centre for the AIDS Programme of Research in South Africa, Durban, South Africa
| | - Alasdair Leslie
- Africa Health Research Institute, Durban, South Africa
- Division of Infection and Immunity, University College London, London, United Kingdom
- School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Henrik N. Kløverpris
- Africa Health Research Institute, Durban, South Africa
- Division of Infection and Immunity, University College London, London, United Kingdom
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Philip Goulder
- Department of Paediatrics, University of Oxford, Oxford, United Kingdom
- HIV Pathogenesis Programme, Doris Duke Medical Research Institute, University of KwaZulu-Natal, Durban, South Africa
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Mechanism of Viral Suppression among HIV Elite Controllers and Long-Term Nonprogressors in Nigeria and South Africa. Viruses 2022; 14:v14061270. [PMID: 35746741 PMCID: PMC9228396 DOI: 10.3390/v14061270] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 06/01/2022] [Accepted: 06/07/2022] [Indexed: 12/30/2022] Open
Abstract
A subgroup among people living with HIV (PLHIV) experience viral suppression, sometimes to an undetectable level in the blood and/or are able to maintain a healthy CD4+ T-cell count without the influence of antiretroviral (ARV) therapy. One out of three hundred PLHIV fall into this category, and a large sample of this group can be found in areas with a high prevalence of HIV infection such as Nigeria and South Africa. Understanding the mechanism underpinning the nonprogressive phenotype in this subgroup may provide insights into the control of the global HIV epidemic. This work provides mechanisms of the elite control and nonprogressive phenotype among PLHIV in Nigeria and South Africa and identifies research gaps that will contribute to a better understanding on HIV controllers among PLHIV.
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Katz DH, Tahir UA, Bick AG, Pampana A, Ngo D, Benson MD, Yu Z, Robbins JM, Chen ZZ, Cruz DE, Deng S, Farrell L, Sinha S, Schmaier AA, Shen D, Gao Y, Hall ME, Correa A, Tracy RP, Durda P, Taylor KD, Liu Y, Johnson WC, Guo X, Yao J, Ida Chen YD, Manichaikul AW, Jain D, Bouchard C, Sarzynski MA, Rich SS, Rotter JI, Wang TJ, Wilson JG, Natarajan P, Gerszten RE. Whole Genome Sequence Analysis of the Plasma Proteome in Black Adults Provides Novel Insights Into Cardiovascular Disease. Circulation 2022; 145:357-370. [PMID: 34814699 PMCID: PMC9158509 DOI: 10.1161/circulationaha.121.055117] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 10/27/2021] [Indexed: 02/03/2023]
Abstract
BACKGROUND Plasma proteins are critical mediators of cardiovascular processes and are the targets of many drugs. Previous efforts to characterize the genetic architecture of the plasma proteome have been limited by a focus on individuals of European descent and leveraged genotyping arrays and imputation. Here we describe whole genome sequence analysis of the plasma proteome in individuals with greater African ancestry, increasing our power to identify novel genetic determinants. METHODS Proteomic profiling of 1301 proteins was performed in 1852 Black adults from the Jackson Heart Study using aptamer-based proteomics (SomaScan). Whole genome sequencing association analysis was ascertained for all variants with minor allele count ≥5. Results were validated using an alternative, antibody-based, proteomic platform (Olink) as well as replicated in the Multi-Ethnic Study of Atherosclerosis and the HERITAGE Family Study (Health, Risk Factors, Exercise Training and Genetics). RESULTS We identify 569 genetic associations between 479 proteins and 438 unique genetic regions at a Bonferroni-adjusted significance level of 3.8×10-11. These associations include 114 novel locus-protein relationships and an additional 217 novel sentinel variant-protein relationships. Novel cardiovascular findings include new protein associations at the APOE gene locus including ZAP70 (sentinel single nucleotide polymorphism [SNP] rs7412-T, β=0.61±0.05, P=3.27×10-30) and MMP-3 (β=-0.60±0.05, P=1.67×10-32), as well as a completely novel pleiotropic locus at the HPX gene, associated with 9 proteins. Further, the associations suggest new mechanisms of genetically mediated cardiovascular disease linked to African ancestry; we identify a novel association between variants linked to APOL1-associated chronic kidney and heart disease and the protein CKAP2 (rs73885319-G, β=0.34±0.04, P=1.34×10-17) as well as an association between ATTR amyloidosis and RBP4 levels in community-dwelling individuals without heart failure. CONCLUSIONS Taken together, these results provide evidence for the functional importance of variants in non-European populations, and suggest new biological mechanisms for ancestry-specific determinants of lipids, coagulation, and myocardial function.
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Affiliation(s)
- Daniel H. Katz
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, MA
| | - Usman A. Tahir
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, MA
| | | | | | - Debby Ngo
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, MA
| | - Mark D. Benson
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, MA
| | - Zhi Yu
- Broad Institute of Harvard and MIT, Cambridge, MA
| | - Jeremy M. Robbins
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, MA
| | - Zsu-Zsu Chen
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, MA
| | - Daniel E. Cruz
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, MA
| | - Shuliang Deng
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, MA
| | - Laurie Farrell
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, MA
| | - Sumita Sinha
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, MA
| | - Alec A. Schmaier
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, MA
| | - Dongxiao Shen
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, MA
| | - Yan Gao
- Univ of Mississippi Medical Center, Jackson, MS
| | | | - Adolfo Correa
- University of Mississippi Medical Center, Jackson, MS
| | - Russell P. Tracy
- Department of Pathology Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, VT
| | - Peter Durda
- Department of Pathology Laboratory Medicine, Larner College of Medicine, University of Vermont, Burlington, VT
| | - Kent D. Taylor
- The Institute for Translational Genomics and Population Sciences, Department of Pediatrics, The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA
| | - Yongmei Liu
- Department of Medicine, Division of Cardiology, Duke Molecular Physiology Institute, Duke University Medical Center, Durham, NC
| | - W. Craig Johnson
- Department of Biostatistics, University of Washington, Seattle, WA
| | - Xiuqing Guo
- The Institute for Translational Genomics and Population Sciences, Department of Pediatrics, The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA
| | - Jie Yao
- The Institute for Translational Genomics and Population Sciences, Department of Pediatrics, The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA
| | - Yii-Der Ida Chen
- The Institute for Translational Genomics and Population Sciences, Department of Pediatrics, The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA
| | - Ani W. Manichaikul
- Center for Public Health Genomics, University of Virginia, Charlottesville, Virginia
- Division of Biostatistics and Epidemiology, Department of Public Health Sciences, University of Virginia, Charlottesville, Virginia
| | - Deepti Jain
- University of Washington, Seattle, Washington
| | | | - Claude Bouchard
- Human Genomic Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA
| | - Mark A. Sarzynski
- Department of Exercise Science, University of South Carolina, Columbia, SC
| | - Stephen S. Rich
- Center for Public Health Genomics, University of Virginia, Charlottesville, Virginia
| | - Jerome I. Rotter
- The Institute for Translational Genomics and Population Sciences, Department of Pediatrics, The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA
| | - Thomas J. Wang
- Department of Medicine, UT Southwestern Medical Center, Dallas, TX
| | - James G. Wilson
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, MA
| | - Pradeep Natarajan
- Broad Institute of Harvard and MIT, Cambridge, MA
- Cardiovascular Research Center, Massachusetts General Hospital, Boston, MA
- Department of Medicine Harvard Medical School, Boston, MA
| | - Robert E. Gerszten
- Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, MA
- Broad Institute of Harvard and MIT, Cambridge, MA
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Govender Y, Shalekoff S, Ebrahim O, Waja Z, Chaisson RE, Martinson N, Tiemessen CT. Systemic DPP4/CD26 is associated with natural HIV-1 control: Implications for COVID-19 susceptibility. Clin Immunol 2021; 230:108824. [PMID: 34391936 PMCID: PMC8360992 DOI: 10.1016/j.clim.2021.108824] [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: 06/23/2020] [Revised: 01/18/2021] [Accepted: 08/10/2021] [Indexed: 01/20/2023]
Abstract
The current intersection of the COVID-19 and HIV-1 pandemics, has raised concerns about the risk for poor COVID-19 outcomes particularly in regions like sub-Saharan Africa, disproportionally affected by HIV. DPP4/CD26 has been suggested to be a potential therapeutic target and a biomarker for risk in COVID-19 patients with high risk co-morbidities. We therefore evaluated soluble DPP4 (sDPP4) levels and activity in plasma of 131 HIV-infected and 20 HIV-uninfected South African individuals. Flow cytometry was performed to compare cell surface expression of DPP4/CD26 and activation markers on peripheral blood mononuclear cells of extreme clinical phenotypes. Progressors had lower specific DPP4 activity and lower frequency of CD3+ T-cells expressing CD26 than HIV-1 controllers, but more activated CD3+CD26+ T-cells. The frequency of CD26-expressing T-cells negatively correlated with HLA-DR+ and CD38+ T-cells. Divergent DPP4/CD26 expression between HIV-1 controllers and progressors may have implications for risk and treatment of COVID-19 in people living with HIV.
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Affiliation(s)
- Yashini Govender
- Centre for HIV & STIs, National Institute for Communicable Diseases, National Health Laboratory Service and Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Sharon Shalekoff
- Centre for HIV & STIs, National Institute for Communicable Diseases, National Health Laboratory Service and Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Osman Ebrahim
- Department of Therapeutic Sciences, Division of Pharmacology, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa
| | - Ziyaad Waja
- Perinatal HIV Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa; Medical Research Council Soweto Matlosana Centre for HIV/AIDS and TB Research, South Africa
| | - Richard E Chaisson
- Johns Hopkins University Centre for AIDS Research, Baltimore, MD, United States
| | - Neil Martinson
- Perinatal HIV Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa; Medical Research Council Soweto Matlosana Centre for HIV/AIDS and TB Research, South Africa
| | - Caroline T Tiemessen
- Centre for HIV & STIs, National Institute for Communicable Diseases, National Health Laboratory Service and Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
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8
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The Role of CXCL16 in the Pathogenesis of Cancer and Other Diseases. Int J Mol Sci 2021; 22:ijms22073490. [PMID: 33800554 PMCID: PMC8036711 DOI: 10.3390/ijms22073490] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/23/2021] [Accepted: 03/26/2021] [Indexed: 12/15/2022] Open
Abstract
CXCL16 is a chemotactic cytokine belonging to the α-chemokine subfamily. It plays a significant role in the progression of cancer, as well as the course of atherosclerosis, renal fibrosis, and non-alcoholic fatty liver disease (NAFLD). Since there has been no review paper discussing the importance of this chemokine in various diseases, we have collected all available knowledge about CXCL16 in this review. In the first part of the paper, we discuss background information about CXCL16 and its receptor, CXCR6. Next, we focus on the importance of CXCL16 in a variety of diseases, with an emphasis on cancer. We discuss the role of CXCL16 in tumor cell proliferation, migration, invasion, and metastasis. Next, we describe the role of CXCL16 in the tumor microenvironment, including involvement in angiogenesis, and its significance in tumor-associated cells (cancer associated fibroblasts (CAF), microglia, tumor-associated macrophages (TAM), tumor-associated neutrophils (TAN), mesenchymal stem cells (MSC), myeloid suppressor cells (MDSC), and regulatory T cells (Treg)). Finally, we focus on the antitumor properties of CXCL16, which are mainly caused by natural killer T (NKT) cells. At the end of the article, we summarize the importance of CXCL16 in cancer therapy.
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9
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Tamalet C, Devaux C, Dubourg G, Colson P. Resistance to human immunodeficiency virus infection: a rare but neglected state. Ann N Y Acad Sci 2020; 1485:22-42. [PMID: 33009659 DOI: 10.1111/nyas.14452] [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: 04/15/2020] [Revised: 06/25/2020] [Accepted: 07/07/2020] [Indexed: 11/29/2022]
Abstract
The natural history of human immunodeficiency virus (HIV) infection is well understood. In most individuals sexually exposed to HIV, the risk of becoming infected depends on the viral load and on sexual practices and gender. However, a low percentage of individuals who practice frequent unprotected sexual intercourse with HIV-infected partners remain uninfected. Although the systematic study of these individuals has made it possible to identify HIV resistance factors including protective genetic patterns, such epidemiological situations remain paradoxical and not fully understood. In vitro experiments have demonstrated that peripheral blood mononuclear cells (PBMCs) from HIV-free, unexposed blood donors are not equally susceptible to HIV infection; in addition, PBMCs from highly exposed seronegative individuals are generally resistant to infection by primary HIV clinical isolates. We review the literature on permissiveness of PBMCs from healthy blood donors and uninfected hyperexposed individuals to sustained infection and replication of HIV-1 in vitro. In addition, we focus on recent evidence indicating that the gut microbiota may either contribute to natural resistance to or delay replication of HIV infected individuals.
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Affiliation(s)
- Catherine Tamalet
- IHU Méditerranée Infection and Aix-Marseille University, Institut de Recherche pour le Développement (IRD), Assistance Publique-Hôpitaux de Marseille (AP-HM), Microbes Evolution Phylogeny and Infections (MEPHI), Marseille, France
| | - Christian Devaux
- IHU Méditerranée Infection and Aix-Marseille University, Institut de Recherche pour le Développement (IRD), Assistance Publique-Hôpitaux de Marseille (AP-HM), Microbes Evolution Phylogeny and Infections (MEPHI), Marseille, France
| | - Gregory Dubourg
- IHU Méditerranée Infection and Aix-Marseille University, Institut de Recherche pour le Développement (IRD), Assistance Publique-Hôpitaux de Marseille (AP-HM), Microbes Evolution Phylogeny and Infections (MEPHI), Marseille, France
| | - Philippe Colson
- IHU Méditerranée Infection and Aix-Marseille University, Institut de Recherche pour le Développement (IRD), Assistance Publique-Hôpitaux de Marseille (AP-HM), Microbes Evolution Phylogeny and Infections (MEPHI), Marseille, France
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Kramer B, Libhaber E. Closing the barrier between disease and health outcomes in Africa through research and capacity development. Glob Health Action 2018; 11:1425597. [PMID: 29370732 PMCID: PMC5795707 DOI: 10.1080/16549716.2018.1425597] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
BACKGROUND While the burden of disease in Africa is high, health research emanating from the continent is low. Building human capacity and research infrastructure to close the gap between research and disease is thus of great imporatance. OBJECTIVE In order to improve research outputs and postgraduate training in the Faculty of Health Sciences, University of the Witwatersrand, the Health Sciences Research Office put in place a series of strategic initiatives over time. METHODS A range of strategic activities, for both postgraduate students and academic staff, were developed in parallel and sequentially over a period of approximately nine years (2008-2016). The latter years were a time of consolidation of the programmes. Outcomes of these activities were 'measured' by increases in publications, decreases in time to graduation and enrichment of the research environment. RESULTS A doubling of research publications and an increase in citations occurred over the period under review. In addition, there was a decrease in the time postgraduate students took to graduate. CONCLUSIONS A varied, but structured research management plan may be of value in African and other developing health sciences institutions to enable the increase in research outputs and capacity development, desperately needed to close the barrier between disease and health.
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Affiliation(s)
- Beverley Kramer
- a Health Sciences Research Office , University of the Witwatersrand , Johannesburg , South Africa.,b School of Anatomical Sciences, Faculty of Health Sciences , University of the Witwatersrand , Johannesburg , South Africa
| | - Elena Libhaber
- a Health Sciences Research Office , University of the Witwatersrand , Johannesburg , South Africa
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