1
|
Henning N, Kellermann TA, Smith C. Effect of Chronic Dolutegravir Administration on the Trace Amine Profile in Wistar Rats. Drugs R D 2024; 24:435-445. [PMID: 39177936 PMCID: PMC11455829 DOI: 10.1007/s40268-024-00484-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/05/2024] [Indexed: 08/24/2024] Open
Abstract
BACKGROUND Dolutegravir (DTG), an integrase strand inhibitor, is currently used as the first-line treatment for HIV. Despite relatively poor tissue penetration, the risk of adverse effects in metabolic and excretory systems should be considered. The trace aminergic system and trace amines are emerging as relevant role players in many chronic diseases that are commonly diagnosed but poorly understood. Trace amines are biogenic amines that are endogenously produced and can also be ingested by the intake of trace amine-rich food. Trace amines are known to differentially regulate inflammatory and neurological outcome. OBJECTIVE This study investigated the effects of DTG on the trace amine profile in a wistar rat model. METHODS A total of 24 healthy wistar rats were randomly divided into four experimental groups: male and female controls and male and female DTG-treated. Blood and tissue samples were collected following a 12-week DTG administration study. Liquid chromatography-tandem mass spectroscopy (LC-MS/MS) was used to determine trace amine concentrations in urine, plasma, brain, and gastrointestinal tissue. RESULTS Current data illustrate that polyamines differ significantly (p < 0.05) between males and females in various matrices. DTG significantly (p < 0.05) reduced jejunal tyramine and urinary synephrine levels. CONCLUSION Data do not raise major concerns about DTG in the context of the trace amine profile. However, given the importance of the dysregulated trace amine profile in various diseased states, including HIV, current data warrant clinical investigation to further evaluate the significance of DTG-associated effects on the trace amine profile.
Collapse
Affiliation(s)
- Natasha Henning
- Division of Clinical Pharmacology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
- Experimental Medicine Research Group, Division of Internal Medicine, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Parow, Cape Town, 7505, South Africa
| | - Tracy A Kellermann
- Division of Clinical Pharmacology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Carine Smith
- Experimental Medicine Research Group, Division of Internal Medicine, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Parow, Cape Town, 7505, South Africa.
| |
Collapse
|
2
|
Tian RR, Li T, Zhang MX, Song TZ, Zheng HY, Zheng YT. Nonnegligible Contribution of Nonlymphoid Tissue to Viral Reservoir During the Short-Term Early cART in SIVmac239-Infected Chinese Rhesus Macaques. AIDS Res Hum Retroviruses 2024; 40:521-530. [PMID: 38535626 DOI: 10.1089/aid.2023.0130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2024] Open
Abstract
HIV/AIDS cannot be cured because of the persistence of the viral reservoir. Because of the complexity of the cellular composition and structure of the human organs, HIV reservoirs of anatomical site are also complex. Recently, although a variety of molecules have been reported to be involved in the establishment and maintenance of the viral reservoirs, or as marker of latent cells, the research mainly focuses on blood and lymph nodes. Now, the characteristics of the viral reservoir in tissue are not yet fully understood. In this study, various tissues were collected from SIVmac239-infected monkeys, and the level of total SIV DNA, SIV 2-LTR DNA, and cell-associated virus RNA in them were compared with character of the anatomical viral reservoir under early treatment. The results showed that short-term combination antiretroviral therapy (cART) starting from 3 days after infection could significantly inhibit viremia and reduce the size of the anatomical viral reservoir, but it could not eradicate de novo infections and ongoing replication of virus. Moreover, the effects of early cART on the level of total SIV DNA, SIV 2-LTR DNA, and cell-associated virus RNA in different tissues were different, which changed the size distribution of viral reservoir in anatomical site. Finally, the contribution of nonlymphoid tissues, especially liver and lung, to the viral reservoir increased after treatment, while the contribution of intestinal lymphoid to the viral reservoir significantly reduced. These results suggested that early treatment effectively decreased the size of viral reservoir, and that the effects of cART on the tissue viral reservoir varied greatly by tissue type. The results implied that persistent existence of virus in nonlymphoid tissues after short-term treatment suggested that the role of nonlymphoid tissues cannot be ignored in development strategies for AIDS therapy.
Collapse
Affiliation(s)
- Ren-Rong Tian
- Key Laboratory of Bioactive Peptides of Yunnan Province/Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
| | - Ting Li
- Key Laboratory of Bioactive Peptides of Yunnan Province/Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
| | - Ming-Xu Zhang
- Key Laboratory of Bioactive Peptides of Yunnan Province/Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
| | - Tian-Zhang Song
- Key Laboratory of Bioactive Peptides of Yunnan Province/Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
| | - Hong-Yi Zheng
- Key Laboratory of Bioactive Peptides of Yunnan Province/Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
| | - Yong-Tang Zheng
- Key Laboratory of Bioactive Peptides of Yunnan Province/Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
- Kunming National High-Level Biosafety Research Center for Nonhuman Primates, Center for Biosafety Mega-Science, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
- National Resource Center for Nonhuman Primates, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
| |
Collapse
|
3
|
Webb GM, Sauter KA, Takahashi D, Kirigiti M, Bader L, Lindsley SR, Blomenkamp H, Zaro C, Shallman M, McGuire C, Hofmeister H, Avila U, Pessoa C, Hwang JM, McCullen A, Humkey M, Reed J, Gao L, Winchester L, Fletcher CV, Varlamov O, Brown TT, Sacha JB, Kievit P, Roberts CT. Effect of metabolic status on response to SIV infection and antiretroviral therapy in nonhuman primates. JCI Insight 2024; 9:e181968. [PMID: 39115937 PMCID: PMC11457846 DOI: 10.1172/jci.insight.181968] [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: 05/01/2024] [Accepted: 08/01/2024] [Indexed: 08/10/2024] Open
Abstract
Current antiretroviral therapy (ART) regimens efficiently limit HIV replication, thereby improving the life expectancy of people living with HIV; however, they also cause metabolic side effects. The ongoing obesity epidemic has resulted in more people with metabolic comorbidities at the time of HIV infection, yet the effect of preexisting metabolic dysregulation on infection sequelae and response to ART is unclear. Here, to investigate the impact of preexisting obesity and insulin resistance on acute infection and subsequent long-term ART, we infected a cohort of lean and obese adult male macaques with SIV and administered ART. The responses of lean and obese macaques to SIV and ART were similar with respect to plasma and cell-associated viral loads, ART drug levels in plasma and tissues, SIV-specific immune responses, adipose tissue and islet morphology, and colon inflammation, with baseline differences between lean and obese groups largely maintained. Both groups exhibited a striking depletion of CD4+ T cells from adipose tissue that did not recover with ART. However, differential responses to SIV and ART were observed for body weight, omental adipocyte size, and the adiponectin/leptin ratio, a marker of cardiometabolic risk. Thus, obesity and insulin resistance had limited effects on multiple responses to acute SIV infection and ART, while several factors that underlie long-term metabolic comorbidities were influenced by prior obesity and insulin resistance. These studies provide the foundation for future investigations into the efficacy of adjunct therapies such as metformin and glucagon-like peptide-1 receptor agonists in the prevention of metabolic comorbidities in people living with HIV.
Collapse
Affiliation(s)
| | - Kristin A. Sauter
- Division of Metabolic Health and Disease, Oregon National Primate Research Center (ONPRC), Beaverton, Oregon, USA
| | - Diana Takahashi
- Division of Metabolic Health and Disease, Oregon National Primate Research Center (ONPRC), Beaverton, Oregon, USA
| | - Melissa Kirigiti
- Division of Metabolic Health and Disease, Oregon National Primate Research Center (ONPRC), Beaverton, Oregon, USA
| | - Lindsay Bader
- Division of Metabolic Health and Disease, Oregon National Primate Research Center (ONPRC), Beaverton, Oregon, USA
| | - Sarah R. Lindsley
- Division of Metabolic Health and Disease, Oregon National Primate Research Center (ONPRC), Beaverton, Oregon, USA
| | - Hannah Blomenkamp
- Division of Metabolic Health and Disease, Oregon National Primate Research Center (ONPRC), Beaverton, Oregon, USA
| | - Cicely Zaro
- Division of Metabolic Health and Disease, Oregon National Primate Research Center (ONPRC), Beaverton, Oregon, USA
| | - Molly Shallman
- Division of Metabolic Health and Disease, Oregon National Primate Research Center (ONPRC), Beaverton, Oregon, USA
| | - Casey McGuire
- Division of Metabolic Health and Disease, Oregon National Primate Research Center (ONPRC), Beaverton, Oregon, USA
| | - Heather Hofmeister
- Division of Metabolic Health and Disease, Oregon National Primate Research Center (ONPRC), Beaverton, Oregon, USA
| | - Uriel Avila
- Division of Metabolic Health and Disease, Oregon National Primate Research Center (ONPRC), Beaverton, Oregon, USA
| | | | | | | | | | - Jason Reed
- Division of Pathobiology and Immunology, and
| | - Lina Gao
- Knight Cancer Institute, Oregon Health and Science University, Portland, Oregon, USA
| | - Lee Winchester
- Antiviral Pharmacology Laboratory, Center for Drug Discovery, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Courtney V. Fletcher
- Antiviral Pharmacology Laboratory, Center for Drug Discovery, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Oleg Varlamov
- Division of Metabolic Health and Disease, Oregon National Primate Research Center (ONPRC), Beaverton, Oregon, USA
| | - Todd T. Brown
- Division of Endocrinology, Diabetes and Metabolism, Johns Hopkins University, Baltimore, Maryland, USA
| | | | - Paul Kievit
- Division of Metabolic Health and Disease, Oregon National Primate Research Center (ONPRC), Beaverton, Oregon, USA
| | - Charles T. Roberts
- Division of Metabolic Health and Disease, Oregon National Primate Research Center (ONPRC), Beaverton, Oregon, USA
- Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center (ONPRC), Beaverton, Oregon, USA
| |
Collapse
|
4
|
Kun-Varga A, Gubán B, Miklós V, Parvaneh S, Guba M, Szűcs D, Monostori T, Varga J, Varga Á, Rázga Z, Bata-Csörgő Z, Kemény L, Megyeri K, Veréb Z. Herpes Simplex Virus Infection Alters the Immunological Properties of Adipose-Tissue-Derived Mesenchymal-Stem Cells. Int J Mol Sci 2023; 24:11989. [PMID: 37569367 PMCID: PMC10418794 DOI: 10.3390/ijms241511989] [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: 04/17/2023] [Revised: 06/20/2023] [Accepted: 06/26/2023] [Indexed: 08/13/2023] Open
Abstract
The proper functioning of mesenchymal stem cells (MSCs) is of paramount importance for the homeostasis of the body. Inflammation and infection can alter the function of MSCs, which can also affect the regenerative potential and immunological status of tissues. It is not known whether human herpes simplex viruses 1 and 2 (HSV1 and HSV2), well-known human pathogens that can cause lifelong infections, can induce changes in MSCs. In non-healing ulcers, HSV infection is known to affect deeper tissue layers. In addition, HSV infection can recur after initially successful cell therapies. Our aim was to study the response of adipose-derived MSCs (ADMSCs) to HSV infection in vitro. After confirming the phenotype and differentiation capacity of the isolated cells, we infected the cells in vitro with HSV1-KOS, HSV1-532 and HSV2 virus strains. Twenty-four hours after infection, we examined the gene expression of the cells via RNA-seq and RT-PCR; detected secreted cytokines via protein array; and determined autophagy via Western blot, transmission electron microscopy (TEM) and fluorescence microscopy. Infection with different HSV strains resulted in different gene-expression patterns. In addition to the activation of pathways characteristic of viral infections, distinct non-immunological pathways (autophagy, tissue regeneration and differentiation) were also activated according to analyses with QIAGEN Ingenuity Pathway Analysis, Kyoto Encyclopedia of Genes and Genome and Genome Ontology Enrichment. Viral infections increased autophagy, as confirmed via TEM image analysis, and also increased levels of the microtubule-associated protein light chain 3 (LC3B) II protein. We identified significantly altered accumulation for 16 cytokines involved in tissue regeneration and inflammation. Our studies demonstrated that HSV infection can alter the viability and immunological status of ADMSCs, which may have implications for ADMSC-based cell therapies. Alterations in autophagy can affect numerous processes in MSCs, including the inhibition of tissue regeneration as well as pathological differentiation.
Collapse
Affiliation(s)
- Anikó Kun-Varga
- Regenerative Medicine and Cellular Pharmacology Laboratory, Department of Dermatology and Allergology, University of Szeged, H-6720 Szeged, Hungary; (A.K.-V.); (B.G.); (M.G.); (D.S.); (T.M.); (L.K.)
- Doctoral School of Clinical Medicine, University of Szeged, H-6720 Szeged, Hungary
| | - Barbara Gubán
- Regenerative Medicine and Cellular Pharmacology Laboratory, Department of Dermatology and Allergology, University of Szeged, H-6720 Szeged, Hungary; (A.K.-V.); (B.G.); (M.G.); (D.S.); (T.M.); (L.K.)
| | - Vanda Miklós
- Biobank, University of Szeged, H-6720 Szeged, Hungary;
| | - Shahram Parvaneh
- HCEMM-SZTE Skin Research Group, University of Szeged, H-6720 Szeged, Hungary; (S.P.); (Z.B.-C.)
| | - Melinda Guba
- Regenerative Medicine and Cellular Pharmacology Laboratory, Department of Dermatology and Allergology, University of Szeged, H-6720 Szeged, Hungary; (A.K.-V.); (B.G.); (M.G.); (D.S.); (T.M.); (L.K.)
- Interdisciplinary Research Development and Innovation Center of Excellence, University of Szeged, H-6720 Szeged, Hungary
| | - Diána Szűcs
- Regenerative Medicine and Cellular Pharmacology Laboratory, Department of Dermatology and Allergology, University of Szeged, H-6720 Szeged, Hungary; (A.K.-V.); (B.G.); (M.G.); (D.S.); (T.M.); (L.K.)
- Interdisciplinary Research Development and Innovation Center of Excellence, University of Szeged, H-6720 Szeged, Hungary
| | - Tamás Monostori
- Regenerative Medicine and Cellular Pharmacology Laboratory, Department of Dermatology and Allergology, University of Szeged, H-6720 Szeged, Hungary; (A.K.-V.); (B.G.); (M.G.); (D.S.); (T.M.); (L.K.)
- Interdisciplinary Research Development and Innovation Center of Excellence, University of Szeged, H-6720 Szeged, Hungary
| | - János Varga
- Dermatosurgery and Plastic Surgery Unit, Department of Dermatology and Allergology, University of Szeged, H-6720 Szeged, Hungary; (J.V.); (Á.V.)
| | - Ákos Varga
- Dermatosurgery and Plastic Surgery Unit, Department of Dermatology and Allergology, University of Szeged, H-6720 Szeged, Hungary; (J.V.); (Á.V.)
| | - Zsolt Rázga
- Department of Pathology, University of Szeged, H-6720 Szeged, Hungary;
| | - Zsuzsanna Bata-Csörgő
- HCEMM-SZTE Skin Research Group, University of Szeged, H-6720 Szeged, Hungary; (S.P.); (Z.B.-C.)
| | - Lajos Kemény
- Regenerative Medicine and Cellular Pharmacology Laboratory, Department of Dermatology and Allergology, University of Szeged, H-6720 Szeged, Hungary; (A.K.-V.); (B.G.); (M.G.); (D.S.); (T.M.); (L.K.)
- HCEMM-SZTE Skin Research Group, University of Szeged, H-6720 Szeged, Hungary; (S.P.); (Z.B.-C.)
- Interdisciplinary Research Development and Innovation Center of Excellence, University of Szeged, H-6720 Szeged, Hungary
| | - Klára Megyeri
- Department of Medical Microbiology, University of Szeged, H-6720 Szeged, Hungary;
| | - Zoltán Veréb
- Regenerative Medicine and Cellular Pharmacology Laboratory, Department of Dermatology and Allergology, University of Szeged, H-6720 Szeged, Hungary; (A.K.-V.); (B.G.); (M.G.); (D.S.); (T.M.); (L.K.)
- Biobank, University of Szeged, H-6720 Szeged, Hungary;
- Interdisciplinary Research Development and Innovation Center of Excellence, University of Szeged, H-6720 Szeged, Hungary
| |
Collapse
|
5
|
Barthelemy J, Bogard G, Wolowczuk I. Beyond energy balance regulation: The underestimated role of adipose tissues in host defense against pathogens. Front Immunol 2023; 14:1083191. [PMID: 36936928 PMCID: PMC10019896 DOI: 10.3389/fimmu.2023.1083191] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 01/09/2023] [Indexed: 03/06/2023] Open
Abstract
Although the adipose tissue (AT) is a central metabolic organ in the regulation of whole-body energy homeostasis, it is also an important endocrine and immunological organ. As an endocrine organ, AT secretes a variety of bioactive peptides known as adipokines - some of which have inflammatory and immunoregulatory properties. As an immunological organ, AT contains a broad spectrum of innate and adaptive immune cells that have mostly been studied in the context of obesity. However, overwhelming evidence supports the notion that AT is a genuine immunological effector site, which contains all cell subsets required to induce and generate specific and effective immune responses against pathogens. Indeed, AT was reported to be an immune reservoir in the host's response to infection, and a site of parasitic, bacterial and viral infections. In addition, besides AT's immune cells, preadipocytes and adipocytes were shown to express innate immune receptors, and adipocytes were reported as antigen-presenting cells to regulate T-cell-mediated adaptive immunity. Here we review the current knowledge on the role of AT and AT's immune system in host defense against pathogens. First, we will summarize the main characteristics of AT: type, distribution, function, and extraordinary plasticity. Second, we will describe the intimate contact AT has with lymph nodes and vessels, and AT immune cell composition. Finally, we will present a comprehensive and up-to-date overview of the current research on the contribution of AT to host defense against pathogens, including the respiratory viruses influenza and SARS-CoV-2.
Collapse
Affiliation(s)
| | | | - Isabelle Wolowczuk
- Univ. Lille, Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (Inserm), Centre Hospitalier Universitaire de Lille (CHU Lille), Institut Pasteur de Lille, U1019 - UMR 9017 - Center for Infection and Immunity of Lille (CIIL), Lille, France
| |
Collapse
|
6
|
Almeida Furquim de Camargo B, Fonseca-Santos B, Gonçalves Carvalho S, Corrêa Carvalho G, Delello Di Filippo L, Sousa Araújo VH, Lobato Duarte J, Polli Silvestre AL, Bauab TM, Chorilli M. Functionalized lipid-based drug delivery nanosystems for the treatment of human infectious diseases. Crit Rev Microbiol 2023; 49:214-230. [PMID: 35634703 DOI: 10.1080/1040841x.2022.2047007] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Infectious diseases are still public health problems. Microorganisms such as fungi, bacteria, viruses, and parasites are the main causing agents related to these diseases. In this context, the search for new effective strategies in prevention and/or treatment is considered essential, since current drugs often have side effects or end up, causing microbial resistance, making it a serious health problem. As an alternative to these limitations, nanotechnology has been widely used. The use of lipid-based drug delivery nanosystems (DDNs) has some advantages, such as biocompatibility, low toxicity, controlled release, the ability to carry both hydrophilic and lipophilic drugs, in addition to be easel scalable. Besides, as an improvement, studies involving the conjugation of signalling molecules on the surfaces of these nanocarriers can allow the target of certain tissues or cells. Thus, this review summarizes the performance of functionalized lipid-based DDNs for the treatment of infectious diseases caused by viruses, including SARS-CoV-2, bacteria, fungi, and parasites.
Collapse
Affiliation(s)
| | - Bruno Fonseca-Santos
- Faculty of Pharmaceutical Sciences, Campinas State University (UNICAMP), Campinas, Brazil
| | | | | | | | | | - Jonatas Lobato Duarte
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, Brazil
| | | | - Taís Maria Bauab
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, Brazil
| | - Marlus Chorilli
- School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, Brazil
| |
Collapse
|
7
|
Regional immunity of chicken adipose tissue responds to secondary immunity induced by Newcastle disease vaccine via promoting immune activation and weakening lipid metabolism. Poult Sci 2023; 102:102646. [PMID: 37031585 PMCID: PMC10105486 DOI: 10.1016/j.psj.2023.102646] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 03/06/2023] [Accepted: 03/07/2023] [Indexed: 03/12/2023] Open
Abstract
Adipose tissue (AT) is considered as a regional immune organ and plays an important role in the anti-infection immune response. However, the function and mechanism of chicken AT in response to secondary immune response remain poorly understood. Here, we used mRNA and microRNA (miRNA) sequencing technology to survey the transcriptomic landscape of chicken abdominal adipose tissue (AAT) during the first and second immunization with Newcastle disease virus (NDV) vaccine, and carried out bioinformatics analysis, such as Gene Ontology (GO) terms and Kyoto Encyclopedia of Genes and Genomes (KEGG) functional enrichment analysis, protein-protein interaction (PPI) analysis, and miRNA-mRNA integrated analysis. The results indicated that chicken AAT actively responded to the secondary immune response. DNA replication and cytoskeleton regulation as the regulatory functions of immune activation changed significantly, and weakened lipid metabolism was an effective strategy for the secondary immunity. Mechanically, the regulatory network between the differentially expressed miRNAs (DEMs) and their targeted differentially expressed genes (DEGs), such as miR-206/miR-499-5p-nuclear receptor subfamily 4 group A member 3 (NR4A3)/methylsterol monooxygenase 1 (MSMO1) pathway, was one of the potential key mechanisms by which AAT responded to the secondary immune response. In conclusion, regional immunity of chicken AT responds to secondary immunity by promoting immune activation and weakening lipid metabolism, and this study can instruct future research on antiviral strategy.
Collapse
|
8
|
Zhou H, Ren R, Yau SST. Utilizing the codon adaptation index to evaluate the susceptibility to HIV-1 and SARS-CoV-2 related coronaviruses in possible target cells in humans. Front Cell Infect Microbiol 2023; 12:1085397. [PMID: 36760235 PMCID: PMC9905242 DOI: 10.3389/fcimb.2022.1085397] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 12/30/2022] [Indexed: 01/27/2023] Open
Abstract
Comprehensive identification of possible target cells for viruses is crucial for understanding the pathological mechanism of virosis. The susceptibility of cells to viruses depends on many factors. Besides the existence of receptors at the cell surface, effective expression of viral genes is also pivotal for viral infection. The regulation of viral gene expression is a multilevel process including transcription, translational initiation and translational elongation. At the translational elongation level, the translational efficiency of viral mRNAs mainly depends on the match between their codon composition and cellular translational machinery (usually referred to as codon adaptation). Thus, codon adaptation for viral ORFs in different cell types may be related to their susceptibility to viruses. In this study, we selected the codon adaptation index (CAI) which is a common codon adaptation-based indicator for assessing the translational efficiency at the translational elongation level to evaluate the susceptibility to two-pandemic viruses (HIV-1 and SARS-CoV-2) of different human cell types. Compared with previous studies that evaluated the infectivity of viruses based on codon adaptation, the main advantage of our study is that our analysis is refined to the cell-type level. At first, we verified the positive correlation between CAI and translational efficiency and strengthened the rationality of our research method. Then we calculated CAI for ORFs of two viruses in various human cell types. We found that compared to high-expression endogenous genes, the CAIs of viral ORFs are relatively low. This phenomenon implied that two kinds of viruses have not been well adapted to translational regulatory machinery in human cells. Also, we indicated that presumptive susceptibility to viruses according to CAI is usually consistent with the results of experimental research. However, there are still some exceptions. Finally, we found that two viruses have different effects on cellular translational mechanisms. HIV-1 decouples CAI and translational efficiency of endogenous genes in host cells and SARS-CoV-2 exhibits increased CAI for its ORFs in infected cells. Our results implied that at least in cases of HIV-1 and SARS-CoV-2, CAI can be regarded as an auxiliary index to assess cells' susceptibility to viruses but cannot be used as the only evidence to identify viral target cells.
Collapse
Affiliation(s)
- Haoyu Zhou
- Yanqi Lake Beijing Institute of Mathematical Sciences and Applications (BIMSA), Beijing, China,School of Life Sciences, Tsinghua University, Beijing, China
| | - Ruohan Ren
- Yanqi Lake Beijing Institute of Mathematical Sciences and Applications (BIMSA), Beijing, China,Zhili College, Tsinghua University, Beijing, China
| | - Stephen Shing-Toung Yau
- Yanqi Lake Beijing Institute of Mathematical Sciences and Applications (BIMSA), Beijing, China,Department of Mathematical Sciences, Tsinghua University, Beijing, China,*Correspondence: Stephen Shing-Toung Yau,
| |
Collapse
|
9
|
High baseline body mass index predicts recovery of CD4+ T lymphocytes for HIV/AIDS patients receiving long-term antiviral therapy. PLoS One 2022; 17:e0279731. [PMID: 36584083 PMCID: PMC9803121 DOI: 10.1371/journal.pone.0279731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 12/14/2022] [Indexed: 12/31/2022] Open
Abstract
The relationship between baseline BMI and CD4+ T cells during follow-up in HIV patients in China requires further evaluation. We conducted a retrospective cohort study based on adult AIDS patients who underwent or received antiretroviral therapy from 2003 to 2019 in Guangxi, China. BMI was divided into categories and compared, and after adjusting for BMI being related to the change in CD4 lymphocyte count, with normal weight as the reference group, the BMI before treatment was positively correlated with the changes in CD4+ T cells at different time periods. Among them, obese patients had significant CD4+ cell gain. In patients with pretreatment CD4+ T lymphocyte counts <200 cells/μL, a higher BMI was associated with an increased likelihood of achieving immunologic reconstitution [≥350 cells/μL: AHR: 1.02(1.01, 1.04), P = 0.004; ≥500 cells/μL: AHR: 1.03 (1.01, 1.05), P = 0.004]. Underweight in HIV patients was a risk factor for poor viral suppression [AHR: 1.24 (1.04, 1.48), P = 0.016]. Our study demonstrated that HIV/AIDS patients receiving ART with higher baseline BMI had better immune reconstitution and that baseline BMI could be an important predictor of immune reconstitution in patients receiving ART. Baseline BMI was not associated with virological failure, but a lower baseline BMI indicated poor viral suppression during follow-up.
Collapse
|
10
|
Joseph J, Daley W, Lawrence D, Lorenzo E, Perrin P, Rao VR, Tsai SY, Varthakavi V. Role of macrophages in HIV pathogenesis and cure: NIH perspectives. J Leukoc Biol 2022; 112:1233-1243. [PMID: 36073341 DOI: 10.1002/jlb.4mr0722-619r] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 07/27/2022] [Indexed: 12/24/2022] Open
Abstract
Macrophages play a significant role in HIV infection and contribute to pathogenesis of comorbidities as well as establishment of the viral reservoir in people living with HIV. While CD4+ T cells are considered the main targets of HIV infection, infected macrophages resist the cytopathic effects of infection, contributing to the persistent HIV reservoir. Furthermore, activated macrophages drive inflammation and contribute to the development of comorbidities, including HIV-associated CNS dysfunction. Better understanding the role of macrophages in HIV infection, persistence, and comorbidities can lead to development of innovative therapeutic strategies to address HIV-related outcomes in people living with HIV. In October 2021, the National Institute of Mental Health and the Ragon Institute of MGH, MIT, and Harvard conducted a virtual meeting on role of macrophages in HIV infection, pathogenesis, and cure. This review article captures the key highlights from this meeting and provides an overview of interests and activities of various NIH institutes involved in supporting research on macrophages and HIV.
Collapse
Affiliation(s)
- Jeymohan Joseph
- Division of AIDS Research, National Institute of Mental Health, 5601 Fishers Lane, Bethesda, MD, USA
| | - William Daley
- Neuroscience Center, National Institute of Neurological Disorders and Stroke, Room 6001 Executive Blvd., Bethesda, MD, 20892-9521, USA.,Eunice Kennedy Shriver National Institute of Child Health and Human Development, 6710B Rockledge Drive, Bethesda, MD, 20892, USA
| | - Diane Lawrence
- National Institute of Allergy and Infectious Diseases, 5601 Fishers Lane, Bethesda, MD, 20892, USA
| | - Eric Lorenzo
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, 6710B Rockledge Drive, Bethesda, MD, 20892, USA
| | - Peter Perrin
- National Institute of Diabetes and Digestive and Kidney Diseases, 6707 Democracy Boulevard, Bethesda, MD, 20892, USA
| | - Vasudev R Rao
- Division of AIDS Research, National Institute of Mental Health, 5601 Fishers Lane, Bethesda, MD, USA
| | - Shang-Yi Tsai
- National Institute on Drug Abuse, 3WFN, 11601 Landsdown Street, North Bethesda, MD, 20852, USA
| | - Vasundhara Varthakavi
- National Institute on Drug Abuse, 3WFN, 11601 Landsdown Street, North Bethesda, MD, 20852, USA
| |
Collapse
|
11
|
López-Ortega O, Moreno-Corona NC, Cruz-Holguin VJ, Garcia-Gonzalez LD, Helguera-Repetto AC, Romero-Valdovinos M, Arevalo-Romero H, Cedillo-Barron L, León-Juárez M. The Immune Response in Adipocytes and Their Susceptibility to Infection: A Possible Relationship with Infectobesity. Int J Mol Sci 2022; 23:ijms23116154. [PMID: 35682832 PMCID: PMC9181511 DOI: 10.3390/ijms23116154] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 05/25/2022] [Accepted: 05/27/2022] [Indexed: 02/01/2023] Open
Abstract
The current obesity pandemic has been expanding in both developing and developed countries. This suggests that the factors contributing to this condition need to be reconsidered since some new factors are arising as etiological causes of this disease. Moreover, recent clinical and experimental findings have shown an association between the progress of obesity and some infections, and the functions of adipose tissues, which involve cell metabolism and adipokine release, among others. Furthermore, it has recently been reported that adipocytes could either be reservoirs for these pathogens or play an active role in this process. In addition, there is abundant evidence indicating that during obesity, the immune system is exacerbated, suggesting an increased susceptibility of the patient to the development of several forms of illness or death. Thus, there could be a relationship between infection as a trigger for an increase in adipose cells and the impact on the metabolism that contributes to the development of obesity. In this review, we describe the findings concerning the role of adipose tissue as a mediator in the immune response as well as the possible role of adipocytes as infection targets, with both roles constituting a possible cause of obesity.
Collapse
Affiliation(s)
- Orestes López-Ortega
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, 75015 Paris, France;
| | - Nidia Carolina Moreno-Corona
- Laboratory of Human Lymphohematopoiesis, Imagine Institute, INSERM UMR 1163, Université de Paris, 75015 Paris, France;
| | - Victor Javier Cruz-Holguin
- Departamento de Immunobioquímica, Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Ciudad de México 11000, Mexico; (V.J.C.-H.); (L.D.G.-G.); (A.C.H.-R.)
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Av. Instituto Politécnico Nacional 2508, San Pedro Zacatenco, Mexico City 07360, Mexico;
| | - Luis Didier Garcia-Gonzalez
- Departamento de Immunobioquímica, Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Ciudad de México 11000, Mexico; (V.J.C.-H.); (L.D.G.-G.); (A.C.H.-R.)
| | - Addy Cecilia Helguera-Repetto
- Departamento de Immunobioquímica, Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Ciudad de México 11000, Mexico; (V.J.C.-H.); (L.D.G.-G.); (A.C.H.-R.)
| | - Mirza Romero-Valdovinos
- Departamento de Biología Molecular e Histocompatibilidad, Hospital General “Dr. Manuel Gea González”, Calzada de Tlalpan 4800, Col. Sección XVI, Ciudad de México 14080, Mexico;
| | - Haruki Arevalo-Romero
- Laboratorio de Inmunología y Microbiología Molecular, División Académica Multidisciplinaria de Jalpa de Méndez, Jalpa de Méndez 86205, Mexico;
| | - Leticia Cedillo-Barron
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Av. Instituto Politécnico Nacional 2508, San Pedro Zacatenco, Mexico City 07360, Mexico;
| | - Moisés León-Juárez
- Departamento de Immunobioquímica, Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Ciudad de México 11000, Mexico; (V.J.C.-H.); (L.D.G.-G.); (A.C.H.-R.)
- Correspondence:
| |
Collapse
|
12
|
Caputa G, Matsushita M, Sanin DE, Kabat AM, Edwards-Hicks J, Grzes KM, Pohlmeyer R, Stanczak MA, Castoldi A, Cupovic J, Forde AJ, Apostolova P, Seidl M, van Teijlingen Bakker N, Villa M, Baixauli F, Quintana A, Hackl A, Flachsmann L, Hässler F, Curtis JD, Patterson AE, Henneke P, Pearce EL, Pearce EJ. Intracellular infection and immune system cues rewire adipocytes to acquire immune function. Cell Metab 2022; 34:747-760.e6. [PMID: 35508110 DOI: 10.1016/j.cmet.2022.04.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 01/24/2022] [Accepted: 04/13/2022] [Indexed: 12/11/2022]
Abstract
Adipose tissue (AT) plays a central role in systemic metabolic homeostasis, but its function during bacterial infection remains unclear. Following subcutaneous bacterial infection, adipocytes surrounding draining lymph nodes initiated a transcriptional response indicative of stimulation with IFN-γ and a shift away from lipid metabolism toward an immunologic function. Natural killer (NK) and invariant NK T (iNKT) cells were identified as sources of infection-induced IFN-γ in perinodal AT (PAT). IFN-γ induced Nos2 expression in adipocytes through a process dependent on nuclear-binding oligomerization domain 1 (NOD1) sensing of live intracellular bacteria. iNOS expression was coupled to metabolic rewiring, inducing increased diversion of extracellular L-arginine through the arginosuccinate shunt and urea cycle to produce nitric oxide (NO), directly mediating bacterial clearance. In vivo, control of infection in adipocytes was dependent on adipocyte-intrinsic sensing of IFN-γ and expression of iNOS. Thus, adipocytes are licensed by innate lymphocytes to acquire anti-bacterial functions during infection.
Collapse
Affiliation(s)
- George Caputa
- Department of Immunometabolism, Max Planck Institute for Immunobiology and Epigenetics, 79108 Freiburg, Germany
| | - Mai Matsushita
- Department of Immunometabolism, Max Planck Institute for Immunobiology and Epigenetics, 79108 Freiburg, Germany
| | - David E Sanin
- Department of Immunometabolism, Max Planck Institute for Immunobiology and Epigenetics, 79108 Freiburg, Germany; Bloomberg Kimmel Institute, and Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Agnieszka M Kabat
- Department of Immunometabolism, Max Planck Institute for Immunobiology and Epigenetics, 79108 Freiburg, Germany
| | - Joy Edwards-Hicks
- Department of Immunometabolism, Max Planck Institute for Immunobiology and Epigenetics, 79108 Freiburg, Germany
| | - Katarzyna M Grzes
- Department of Immunometabolism, Max Planck Institute for Immunobiology and Epigenetics, 79108 Freiburg, Germany
| | - Roland Pohlmeyer
- Imaging Facility, Max Planck Institute for Immunobiology and Epigenetics, 79108 Freiburg, Germany
| | - Michal A Stanczak
- Department of Immunometabolism, Max Planck Institute for Immunobiology and Epigenetics, 79108 Freiburg, Germany
| | - Angela Castoldi
- Department of Immunometabolism, Max Planck Institute for Immunobiology and Epigenetics, 79108 Freiburg, Germany
| | - Jovana Cupovic
- Department of Immunometabolism, Max Planck Institute for Immunobiology and Epigenetics, 79108 Freiburg, Germany
| | - Aaron J Forde
- Faculty of Biology, University of Freiburg, 79104 Freiburg, Germany; Center for Chronic Immune Deficiency, Faculty of Medicine, University of Freiburg, 79104 Freiburg, Germany
| | - Petya Apostolova
- Department of Immunometabolism, Max Planck Institute for Immunobiology and Epigenetics, 79108 Freiburg, Germany
| | - Maximilian Seidl
- Center for Chronic Immune Deficiency, Faculty of Medicine, University of Freiburg, 79104 Freiburg, Germany; Institute of Surgical Pathology, Faculty of Medicine, Medical Center, University of Freiburg, 79104 Freiburg, Germany; Institute of Pathology, Heinrich Heine University and University Hospital of Duesseldorf, 40225 Duesseldorf, Germany
| | - Nikki van Teijlingen Bakker
- Department of Immunometabolism, Max Planck Institute for Immunobiology and Epigenetics, 79108 Freiburg, Germany; Faculty of Biology, University of Freiburg, 79104 Freiburg, Germany
| | - Matteo Villa
- Department of Immunometabolism, Max Planck Institute for Immunobiology and Epigenetics, 79108 Freiburg, Germany
| | - Francesc Baixauli
- Department of Immunometabolism, Max Planck Institute for Immunobiology and Epigenetics, 79108 Freiburg, Germany
| | - Andrea Quintana
- Department of Immunometabolism, Max Planck Institute for Immunobiology and Epigenetics, 79108 Freiburg, Germany
| | - Alexandra Hackl
- Department of Immunometabolism, Max Planck Institute for Immunobiology and Epigenetics, 79108 Freiburg, Germany
| | - Lea Flachsmann
- Department of Immunometabolism, Max Planck Institute for Immunobiology and Epigenetics, 79108 Freiburg, Germany
| | - Fabian Hässler
- Department of Immunometabolism, Max Planck Institute for Immunobiology and Epigenetics, 79108 Freiburg, Germany
| | - Jonathan D Curtis
- Department of Immunometabolism, Max Planck Institute for Immunobiology and Epigenetics, 79108 Freiburg, Germany
| | - Annette E Patterson
- Department of Immunometabolism, Max Planck Institute for Immunobiology and Epigenetics, 79108 Freiburg, Germany
| | - Philipp Henneke
- Center for Chronic Immune Deficiency, Faculty of Medicine, University of Freiburg, 79104 Freiburg, Germany
| | - Erika L Pearce
- Department of Immunometabolism, Max Planck Institute for Immunobiology and Epigenetics, 79108 Freiburg, Germany; Bloomberg Kimmel Institute, and Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; Department of Biochemistry and Molecular Biology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD 21287, USA.
| | - Edward J Pearce
- Department of Immunometabolism, Max Planck Institute for Immunobiology and Epigenetics, 79108 Freiburg, Germany; Faculty of Biology, University of Freiburg, 79104 Freiburg, Germany; Bloomberg Kimmel Institute, and Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; Department of Molecular Microbiology and Immunology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD 21287, USA.
| |
Collapse
|
13
|
Kobayashi T, Brenner D. A FAsT contribution: Adipocytes rewire their metabolism to acquire immune functions. Cell Metab 2022; 34:656-657. [PMID: 35508107 DOI: 10.1016/j.cmet.2022.04.007] [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] [Indexed: 11/03/2022]
Abstract
Adipose tissue has been linked to inflammation and various physiological processes. In this issue of Cell Metabolism, Caputa et al. describe that perinodal adipocytes adapt their metabolism to actively participate in an immune response against intracellular Listeria monocytogenes.
Collapse
Affiliation(s)
- Takumi Kobayashi
- Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Immunology and Genetics, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, 7 Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Dirk Brenner
- Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Immunology and Genetics, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, 7 Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg; Odense Research Center for Anaphylaxis (ORCA), Department of Dermatology and Allergy Center, Odense University Hospital, University of Southern Denmark, Odense, Denmark.
| |
Collapse
|
14
|
Gourronc FA, Rebagliati M, Kramer-Riesberg B, Fleck AM, Patten JJ, Geohegan-Barek K, Messingham KN, Davey RA, Maury W, Klingelhutz AJ. Adipocytes are susceptible to Ebola Virus infection. Virology 2022; 573:12-22. [DOI: 10.1016/j.virol.2022.05.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 05/23/2022] [Accepted: 05/24/2022] [Indexed: 12/23/2022]
|
15
|
D’Auria E, Calcaterra V, Verduci E, Ghezzi M, Lamberti R, Vizzuso S, Baldassarre P, Pendezza E, Perico V, Bosetti A, Zuccotti GV. Immunonutrition and SARS-CoV-2 Infection in Children with Obesity. Nutrients 2022; 14:1701. [PMID: 35565668 PMCID: PMC9101404 DOI: 10.3390/nu14091701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 04/14/2022] [Accepted: 04/18/2022] [Indexed: 11/16/2022] Open
Abstract
Since the beginning of the SARS-CoV-2 pandemic, there has been much discussion about the role of diet and antiviral immunity in the context of SARS-CoV-2 infection. Intake levels of vitamins D, C, B12, and iron have been demonstrated to be correlated with lower COVID-19 incidence and mortality. Obesity has been demonstrated to be an independent risk for the severity of COVID-19 infection in adults and also in children. This may be due to different mechanisms, mainly including the gut dysbiosis status observed in obese children. Moreover, the existence of a gut-lung axis added new knowledge to on the potential mechanisms by which diet and dietary substances may affect immune function. The aim of this narrative review is to address the intricate inter-relationship between COVID-19, immune function, and obesity-related inflammation and to describe the role of nutrients and dietary patterns in enhancing the immune system. Two ways to fight against COVID-19 disease exist: one with an antiviral response through immune system boosting and another with antioxidants with an anti-inflammatory effect. In the current pandemic situation, the intake of a varied and balanced diet, rich in micronutrients and bioactive compounds including fibers, should be recommended. However, clinical studies conducted on children affected by SARS-CoV-2 infection and comorbidity are warranted.
Collapse
Affiliation(s)
- Enza D’Auria
- Pediatric Department, “Vittore Buzzi” Children’s Hospital, 20154 Milan, Italy; (E.D.); (V.C.); (M.G.); (R.L.); (S.V.); (P.B.); (E.P.); (V.P.); (A.B.); (G.V.Z.)
| | - Valeria Calcaterra
- Pediatric Department, “Vittore Buzzi” Children’s Hospital, 20154 Milan, Italy; (E.D.); (V.C.); (M.G.); (R.L.); (S.V.); (P.B.); (E.P.); (V.P.); (A.B.); (G.V.Z.)
- Pediatric and Adolescent Unit, Department of Internal Medicine, University of Pavia, 27100 Pavia, Italy
| | - Elvira Verduci
- Pediatric Department, “Vittore Buzzi” Children’s Hospital, 20154 Milan, Italy; (E.D.); (V.C.); (M.G.); (R.L.); (S.V.); (P.B.); (E.P.); (V.P.); (A.B.); (G.V.Z.)
- Department of Health Sciences, University of Milan, 20142 Milan, Italy
| | - Michele Ghezzi
- Pediatric Department, “Vittore Buzzi” Children’s Hospital, 20154 Milan, Italy; (E.D.); (V.C.); (M.G.); (R.L.); (S.V.); (P.B.); (E.P.); (V.P.); (A.B.); (G.V.Z.)
| | - Rossella Lamberti
- Pediatric Department, “Vittore Buzzi” Children’s Hospital, 20154 Milan, Italy; (E.D.); (V.C.); (M.G.); (R.L.); (S.V.); (P.B.); (E.P.); (V.P.); (A.B.); (G.V.Z.)
| | - Sara Vizzuso
- Pediatric Department, “Vittore Buzzi” Children’s Hospital, 20154 Milan, Italy; (E.D.); (V.C.); (M.G.); (R.L.); (S.V.); (P.B.); (E.P.); (V.P.); (A.B.); (G.V.Z.)
| | - Paola Baldassarre
- Pediatric Department, “Vittore Buzzi” Children’s Hospital, 20154 Milan, Italy; (E.D.); (V.C.); (M.G.); (R.L.); (S.V.); (P.B.); (E.P.); (V.P.); (A.B.); (G.V.Z.)
| | - Erica Pendezza
- Pediatric Department, “Vittore Buzzi” Children’s Hospital, 20154 Milan, Italy; (E.D.); (V.C.); (M.G.); (R.L.); (S.V.); (P.B.); (E.P.); (V.P.); (A.B.); (G.V.Z.)
| | - Veronica Perico
- Pediatric Department, “Vittore Buzzi” Children’s Hospital, 20154 Milan, Italy; (E.D.); (V.C.); (M.G.); (R.L.); (S.V.); (P.B.); (E.P.); (V.P.); (A.B.); (G.V.Z.)
| | - Alessandra Bosetti
- Pediatric Department, “Vittore Buzzi” Children’s Hospital, 20154 Milan, Italy; (E.D.); (V.C.); (M.G.); (R.L.); (S.V.); (P.B.); (E.P.); (V.P.); (A.B.); (G.V.Z.)
| | - Gian Vincenzo Zuccotti
- Pediatric Department, “Vittore Buzzi” Children’s Hospital, 20154 Milan, Italy; (E.D.); (V.C.); (M.G.); (R.L.); (S.V.); (P.B.); (E.P.); (V.P.); (A.B.); (G.V.Z.)
- Department of Biomedical and Clinical Science “L. Sacco”, University of Milan, 20157 Milan, Italy
| |
Collapse
|
16
|
Overview of Memory NK Cells in Viral Infections: Possible Role in SARS-CoV-2 Infection. IMMUNO 2022. [DOI: 10.3390/immuno2010005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
NK cells have usually been defined as cells of the innate immune system, although they are also involved in adaptative responses. These cells belong to the innate lymphocyte cells (ILC) family. They remove unwanted cells, tumoral cells and pathogens. NK cells are essential for viral infection clearance and are involved in tolerogenic responses depending on the dynamic balance of the repertoire of activating and inhibitory receptors. NK plasticity is crucial for tissue function and vigilant immune responses. They directly eliminate virus-infected cells by recognising viral protein antigens using a non-MHC dependent mechanism, recognising viral glycan structures and antigens by NCR family receptors, inducing apoptosis by Fas-Fas ligand interaction, and killing cells by antibody-dependent cell cytotoxicity via the FcγIII receptor. Activating receptors are responsible for the clearance of virally infected cells, while inhibitory KIR receptor activation impairs NK responses and facilitates virus escape. Effective NK memory cells have been described and characterised by a low NKG2A and high NKG2C or NKG2D expression. NK cells have also been used in cell therapy. In SARS-CoV-2 infection, several contradicting reports about the role of NK cells have been published. A careful analysis of the current data and possible implications will be discussed.
Collapse
|
17
|
Abstract
The introduction of antiretroviral therapy (ART) and highly active antiretroviral therapy (HAART) has transformed human immunodeficiency virus (HIV)-1 into a chronic, well-managed disease. However, these therapies do not eliminate all infected cells from the body despite suppressing viral load. Viral rebound is largely due to the presence of cellular reservoirs which support long-term persistence of HIV-1. A thorough understanding of the HIV-1 reservoir will facilitate the development of new strategies leading to its detection, reduction, and elimination, ultimately leading to curative therapies for HIV-1. Although immune cells derived from lymphoid and myeloid progenitors have been thoroughly studied as HIV-1 reservoirs, few studies have examined whether mesenchymal stromal/stem cells (MSCs) can assume this function. In this review, we evaluate published studies which have assessed whether MSCs contribute to the HIV-1 reservoir. MSCs have been found to express the receptors and co-receptors required for HIV-1 entry, albeit at levels of expression and receptor localisation that vary considerably between studies. Exposure to HIV-1 and HIV-1 proteins alters MSC properties in vitro, including their proliferation capacity and differentiation potential. However, in vitro and in vivo experiments investigating whether MSCs can become infected with and harbour latent integrated proviral DNA are lacking. In conclusion, MSCs appear to have the potential to contribute to the HIV-1 reservoir. However, further studies are needed using techniques such as those used to prove that cluster of differentiation (CD)4+ T cells constitute an HIV-1 reservoir before a reservoir function can definitively be ascribed to MSCs.
Collapse
|
18
|
Kousari A, Moser C, Olefsky M, Brown TT, Currier JS, McComsey GA, Scherzinger A, Stein JH, Lake JE, Erlandson KM. Poorer Muscle Quality and Quantity With ART Initiation Is Associated With Greater Inflammation and Immune Activation. J Acquir Immune Defic Syndr 2021; 88:399-405. [PMID: 34326283 PMCID: PMC8556226 DOI: 10.1097/qai.0000000000002776] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 06/22/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND We have previously shown that the initiation of antiretroviral therapy (ART) is associated with a decrease in skeletal muscle density (greater fat accumulation), suggesting that gains in lean body mass seen in many ART studies may reflect gains in low quality, fatty muscle. Here, we explore whether skeletal muscle density and area are associated with markers of inflammation and immune activation. METHODS ART-naïve people with HIV were randomized to raltegravir or ritonavir-boosted atazanavir or darunavir, each with tenofovir disoproxil fumarate/emtricitabine. Abdominal computed tomography scans from baseline and week 96 were reanalyzed for psoas density and area and correlations explored with inflammation [interleukin-6 (IL-6) and high-sensitivity C-reactive protein] and immune activation [soluble CD14 (sCD14), soluble CD163 (sCD163), and %CD38+HLADR+ on CD4+ or CD8+ T cells]. RESULTS Two hundred twenty-two participants had available inflammation/immune activation markers and paired computed tomography scans. At baseline, lower psoas density (greater fat) correlated with higher IL-6 (r = -0.26, P < 0.001) and sCD163 (r -0.15, P = 0.03) and lower lean psoas area correlated with higher IL-6, high-sensitivity C-reactive protein, sCD14, sCD163, and %CD38+HLADR+ on CD4+ T cells (r = -0.30-0.13; all P ≤ 0.05). From baseline to week 96, greater percent decrease in total psoas density (more fat) correlated with greater increase in IL-6 (r = -0.14; P = 0.04); greater % decrease in lean psoas area correlated greater increases in IL-6, sCD14, sCD163, and %CD38+HLADR+ on CD8+ T cells (r = -0.15 to -0.18; all P < 0.04). CONCLUSIONS Greater fat infiltration within the psoas muscle (lower density) and greater loss in lean psoas muscle area were associated with higher inflammation and immune activation, which may portend important effects on muscle function and cardiometabolic risk.
Collapse
Affiliation(s)
| | - Carlee Moser
- Harvard T.H. Chan School of Public Health; Boston, MA
| | | | | | | | | | | | | | | | | |
Collapse
|
19
|
Agarwal N, Iyer D, Saha P, Cox AR, Xia Y, Utay NS, Somasundaram A, Schubert U, Lake JE, Hartig SM, Balasubramanyam A. HIV-1 Viral Protein R Couples Metabolic Inflexibility With White Adipose Tissue Thermogenesis. Diabetes 2021; 70:2014-2025. [PMID: 34233931 PMCID: PMC8576429 DOI: 10.2337/db20-0888] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 06/29/2021] [Indexed: 11/13/2022]
Abstract
Persons living with HIV (PLWH) manifest chronic disorders of brown and white adipose tissues that lead to diabetes and metabolic syndrome. The mechanisms that link viral factors to defective adipose tissue function and abnormal energy balance in PLWH remain incompletely understood. Here, we explored how the HIV accessory protein viral protein R (Vpr) contributes to adaptive thermogenesis in two mouse models and human adipose tissues. Uncoupling protein 1 (UCP1) gene expression was strongly increased in subcutaneous white adipose tissue (WAT) biopsy specimens from PLWH and in subcutaneous WAT of the Vpr mice, with nearly equivalent mRNA copy number. Histology and functional studies confirmed beige transformation in subcutaneous but not visceral WAT in the Vpr mice. Measurements of energy balance indicated Vpr mice displayed metabolic inflexibility and could not shift efficiently from carbohydrate to fat metabolism during day-night cycles. Furthermore, Vpr mice showed a marked inability to defend body temperature when exposed to 4°C. Importantly, Vpr couples higher tissue catecholamine levels with UCP1 expression independent of β-adrenergic receptors. Our data reveal surprising deficits of adaptive thermogenesis that drive metabolic inefficiency in HIV-1 Vpr mouse models, providing an expanded role for viral factors in the pathogenesis of metabolic disorders in PLWH.
Collapse
Affiliation(s)
- Neeti Agarwal
- Division of Diabetes, Endocrinology, and Metabolism, Baylor College of Medicine, Houston, TX
| | - Dinakar Iyer
- Department of Biology and Biochemistry, University of Houston, Houston, TX
| | - Pradip Saha
- Division of Diabetes, Endocrinology, and Metabolism, Baylor College of Medicine, Houston, TX
| | - Aaron R Cox
- Division of Diabetes, Endocrinology, and Metabolism, Baylor College of Medicine, Houston, TX
| | - Yan Xia
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX
| | - Netanya S Utay
- Division of Infectious Diseases, Department of Internal Medicine, McGovern Medical School at the University of Texas Health Science Center, Houston, TX
| | - Anoma Somasundaram
- Division of Infectious Diseases, Department of Internal Medicine, McGovern Medical School at the University of Texas Health Science Center, Houston, TX
| | | | - Jordan E Lake
- Division of Infectious Diseases, Department of Internal Medicine, McGovern Medical School at the University of Texas Health Science Center, Houston, TX
| | - Sean M Hartig
- Division of Diabetes, Endocrinology, and Metabolism, Baylor College of Medicine, Houston, TX
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX
| | - Ashok Balasubramanyam
- Division of Diabetes, Endocrinology, and Metabolism, Baylor College of Medicine, Houston, TX
| |
Collapse
|
20
|
Bourgeois C, Gorwood J, Olivo A, Le Pelletier L, Capeau J, Lambotte O, Béréziat V, Lagathu C. Contribution of Adipose Tissue to the Chronic Immune Activation and Inflammation Associated With HIV Infection and Its Treatment. Front Immunol 2021; 12:670566. [PMID: 34220817 PMCID: PMC8250865 DOI: 10.3389/fimmu.2021.670566] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Accepted: 05/24/2021] [Indexed: 12/12/2022] Open
Abstract
White adipose tissue (AT) contributes significantly to inflammation – especially in the context of obesity. Several of AT’s intrinsic features favor its key role in local and systemic inflammation: (i) large distribution throughout the body, (ii) major endocrine activity, and (iii) presence of metabolic and immune cells in close proximity. In obesity, the concomitant pro-inflammatory signals produced by immune cells, adipocytes and adipose stem cells help to drive local inflammation in a vicious circle. Although the secretion of adipokines by AT is a prime contributor to systemic inflammation, the lipotoxicity associated with AT dysfunction might also be involved and could affect distant organs. In HIV-infected patients, the AT is targeted by both HIV infection and antiretroviral therapy (ART). During the primary phase of infection, the virus targets AT directly (by infecting AT CD4 T cells) and indirectly (via viral protein release, inflammatory signals, and gut disruption). The initiation of ART drastically changes the picture: ART reduces viral load, restores (at least partially) the CD4 T cell count, and dampens inflammatory processes on the whole-body level but also within the AT. However, ART induces AT dysfunction and metabolic side effects, which are highly dependent on the individual molecules and the combination used. First generation thymidine reverse transcriptase inhibitors predominantly target mitochondrial DNA and induce oxidative stress and adipocyte death. Protease inhibitors predominantly affect metabolic pathways (affecting adipogenesis and adipocyte homeostasis) resulting in insulin resistance. Recently marketed integrase strand transfer inhibitors induce both adipocyte adipogenesis, hypertrophy and fibrosis. It is challenging to distinguish between the respective effects of viral persistence, persistent immune defects and ART toxicity on the inflammatory profile present in ART-controlled HIV-infected patients. The host metabolic status, the size of the pre-established viral reservoir, the quality of the immune restoration, and the natural ageing with associated comorbidities may mitigate and/or reinforce the contribution of antiretrovirals (ARVs) toxicity to the development of low-grade inflammation in HIV-infected patients. Protecting AT functions appears highly relevant in ART-controlled HIV-infected patients. It requires lifestyle habits improvement in the absence of effective anti-inflammatory treatment. Besides, reducing ART toxicities remains a crucial therapeutic goal.
Collapse
Affiliation(s)
- Christine Bourgeois
- CEA - Université Paris Saclay - INSERM U1184, Center for Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, Fontenay-aux-Roses, France
| | - Jennifer Gorwood
- Sorbonne Université, INSERM UMR_S 938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-métabolisme et Nutrition (ICAN), FRM EQU201903007868, Paris, France
| | - Anaelle Olivo
- CEA - Université Paris Saclay - INSERM U1184, Center for Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, Fontenay-aux-Roses, France
| | - Laura Le Pelletier
- Sorbonne Université, INSERM UMR_S 938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-métabolisme et Nutrition (ICAN), FRM EQU201903007868, Paris, France
| | - Jacqueline Capeau
- Sorbonne Université, INSERM UMR_S 938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-métabolisme et Nutrition (ICAN), FRM EQU201903007868, Paris, France
| | - Olivier Lambotte
- CEA - Université Paris Saclay - INSERM U1184, Center for Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, Fontenay-aux-Roses, France.,AP-HP, Groupe Hospitalier Universitaire Paris Saclay, Hôpital Bicêtre, Service de Médecine Interne et Immunologie Clinique, Le Kremlin-Bicêtre, France
| | - Véronique Béréziat
- Sorbonne Université, INSERM UMR_S 938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-métabolisme et Nutrition (ICAN), FRM EQU201903007868, Paris, France
| | - Claire Lagathu
- Sorbonne Université, INSERM UMR_S 938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-métabolisme et Nutrition (ICAN), FRM EQU201903007868, Paris, France
| |
Collapse
|
21
|
Cabrera-Rodríguez R, Pérez-Yanes S, Estévez-Herrera J, Márquez-Arce D, Cabrera C, Espert L, Blanco J, Valenzuela-Fernández A. The Interplay of HIV and Autophagy in Early Infection. Front Microbiol 2021; 12:661446. [PMID: 33995324 PMCID: PMC8113651 DOI: 10.3389/fmicb.2021.661446] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 03/31/2021] [Indexed: 12/11/2022] Open
Abstract
HIV/AIDS is still a global threat despite the notable efforts made by the scientific and health communities to understand viral infection, to design new drugs or to improve existing ones, as well as to develop advanced therapies and vaccine designs for functional cure and viral eradication. The identification and analysis of HIV-1 positive individuals that naturally control viral replication in the absence of antiretroviral treatment has provided clues about cellular processes that could interact with viral proteins and RNA and define subsequent viral replication and clinical progression. This is the case of autophagy, a degradative process that not only maintains cell homeostasis by recycling misfolded/old cellular elements to obtain nutrients, but is also relevant in the innate and adaptive immunity against viruses, such as HIV-1. Several studies suggest that early steps of HIV-1 infection, such as virus binding to CD4 or membrane fusion, allow the virus to modulate autophagy pathways preparing cells to be permissive for viral infection. Confirming this interplay, strategies based on autophagy modulation are able to inhibit early steps of HIV-1 infection. Moreover, autophagy dysregulation in late steps of the HIV-1 replication cycle may promote autophagic cell-death of CD4+ T cells or control of HIV-1 latency, likely contributing to disease progression and HIV persistence in infected individuals. In this scenario, understanding the molecular mechanisms underlying HIV/autophagy interplay may contribute to the development of new strategies to control HIV-1 replication. Therefore, the aim of this review is to summarize the knowledge of the interplay between autophagy and the early events of HIV-1 infection, and how autophagy modulation could impair or benefit HIV-1 infection and persistence, impacting viral pathogenesis, immune control of viral replication, and clinical progression of HIV-1 infected patients.
Collapse
Affiliation(s)
- Romina Cabrera-Rodríguez
- Laboratorio de Inmunología Celular y Viral, Unidad de Farmacología, Sección de Medicina, Facultad de Ciencias de la Salud, e IUETSPC de la Universidad de La Laguna, Campus de Ofra s/n, Tenerife, Spain
| | - Silvia Pérez-Yanes
- Laboratorio de Inmunología Celular y Viral, Unidad de Farmacología, Sección de Medicina, Facultad de Ciencias de la Salud, e IUETSPC de la Universidad de La Laguna, Campus de Ofra s/n, Tenerife, Spain
| | - Judith Estévez-Herrera
- Laboratorio de Inmunología Celular y Viral, Unidad de Farmacología, Sección de Medicina, Facultad de Ciencias de la Salud, e IUETSPC de la Universidad de La Laguna, Campus de Ofra s/n, Tenerife, Spain
| | - Daniel Márquez-Arce
- Laboratorio de Inmunología Celular y Viral, Unidad de Farmacología, Sección de Medicina, Facultad de Ciencias de la Salud, e IUETSPC de la Universidad de La Laguna, Campus de Ofra s/n, Tenerife, Spain
| | - Cecilia Cabrera
- AIDS Research Institute IrsiCaixa, Institut de Recerca en Ciències de la Salut Germans Trias i Pujol (IGTP), Barcelona, Spain
| | - Lucile Espert
- Institut de Recherche en Infectiologie de Montpellier, Université de Montpellier, CNRS, Montpellier, France
| | - Julià Blanco
- AIDS Research Institute IrsiCaixa, Institut de Recerca en Ciències de la Salut Germans Trias i Pujol (IGTP), Barcelona, Spain.,Universitat de Vic-Central de Catalunya (UVIC-UCC), Catalonia, Spain
| | - Agustín Valenzuela-Fernández
- Laboratorio de Inmunología Celular y Viral, Unidad de Farmacología, Sección de Medicina, Facultad de Ciencias de la Salud, e IUETSPC de la Universidad de La Laguna, Campus de Ofra s/n, Tenerife, Spain
| |
Collapse
|
22
|
Wang X, Xu H. Residual Proviral Reservoirs: A High Risk for HIV Persistence and Driving Forces for Viral Rebound after Analytical Treatment Interruption. Viruses 2021; 13:335. [PMID: 33670027 PMCID: PMC7926539 DOI: 10.3390/v13020335] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 02/08/2021] [Accepted: 02/16/2021] [Indexed: 12/17/2022] Open
Abstract
Antiretroviral therapy (ART) has dramatically suppressed human immunodeficiency virus (HIV) replication and become undetectable viremia. However, a small number of residual replication-competent HIV proviruses can still persist in a latent state even with lifelong ART, fueling viral rebound in HIV-infected patient subjects after treatment interruption. Therefore, the proviral reservoirs distributed in tissues in the body represent a major obstacle to a cure for HIV infection. Given unavailable HIV vaccine and a failure to eradicate HIV proviral reservoirs by current treatment, it is crucial to develop new therapeutic strategies to eliminate proviral reservoirs for ART-free HIV remission (functional cure), including a sterilizing cure (eradication of HIV reservoirs). This review highlights recent advances in the establishment and persistence of HIV proviral reservoirs, their detection, and potential eradication strategies.
Collapse
Affiliation(s)
| | - Huanbin Xu
- Tulane National Primate Research Center, Division of Comparative Pathology, Tulane University School of Medicine, 18703 Three Rivers Road, Covington, LA 70433, USA;
| |
Collapse
|
23
|
Cyktor JC, Bosch RJ, Mar H, Macatangay BJ, Collier AC, Hogg E, Godfrey C, Eron JJ, McMahon DK, Mellors JW, Gandhi RT. Association of Male Sex and Obesity With Residual Plasma Human Immunodeficiency Virus 1 Viremia in Persons on Long-Term Antiretroviral Therapy. J Infect Dis 2021; 223:462-470. [PMID: 32603416 DOI: 10.1093/infdis/jiaa373] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 06/22/2020] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Although adipose tissue has been proposed to harbor part of the human immunodeficiency virus 1 (HIV-1) reservoir, the influence of host characteristics, including sex and body mass index (BMI), on measures of HIV-1 persistence during antiretroviral therapy (ART) are incompletely understood. METHODS We evaluated age, sex, BMI, waist circumference, years on ART, pre-ART HIV-1 RNA, pre-ART CD4+ T-cell count, and initial ART regimen with measures of HIV-1 persistence in blood (residual viremia, cellular HIV-1 DNA and RNA) in a cohort of 295 individuals with well-documented long-term virologic suppression (HIV-1 RNA <50 copies/mL) on ART (AIDS Clinical Trials Group study A5321). RESULTS Men were more likely than women to have detectable plasma HIV-1 RNA by single-copy assay (52% vs 29%; P = .003), and the proportion of participants with detectable residual viremia increased in a stepwise fashion by BMI category (normal weight or underweight, 38%; overweight, 50%; and obese, 55%). ART regimen type was not associated with measures of HIV-1 persistence after controlling for ART duration. CONCLUSIONS Sex and obesity are independently associated with residual viremia in people on long-term ART. Additional studies to confirm these relationships and to define the mechanisms by which sex and obesity affect HIV-1 persistence are needed to inform HIV-1 cure strategies.
Collapse
Affiliation(s)
| | - Ronald J Bosch
- Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Hanna Mar
- Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | | | | | - Evelyn Hogg
- Social & Scientific Systems, Silver Spring, Maryland, USA
| | - Catherine Godfrey
- Office of the Global AIDS Coordinator Department of State, Washington DC, USA
| | - Joseph J Eron
- University of North Carolina, Chapel Hill, North Carolina, USA
| | | | | | - Rajesh T Gandhi
- Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | | |
Collapse
|
24
|
Han WM, Jiamsakul A, Jantarapakde J, Yunihastuti E, Choi JY, Ditangco R, Chaiwarith R, Sun LP, Khusuwan S, Merati TP, Do CD, Azwa I, Lee MP, Van Nguyen K, Chan YJ, Kiertiburanakul S, Ng OT, Tanuma J, Pujari S, Zhang F, Gani YM, Sangle S, Ross J, Kumarasamy N. Association of body mass index with immune recovery, virological failure and cardiovascular disease risk among people living with HIV. HIV Med 2020; 22:294-306. [PMID: 33200864 DOI: 10.1111/hiv.13017] [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: 08/03/2020] [Revised: 10/13/2020] [Accepted: 10/21/2020] [Indexed: 11/30/2022]
Abstract
OBJECTIVES We conducted a longitudinal cohort analysis to evaluate the association of pre-treatment body mass index (BMI) with CD4 recovery, virological failure (VF) and cardiovascular risk disease (CVD) markers among people living with HIV (PLHIV). METHODS Participants who were enrolled between January 2003 and March 2019 in a regional Asia HIV cohort with weight and height measurements prior to antiretroviral therapy (ART) initiation were included. Factors associated with mean CD4 increase were analysed using repeated-measures linear regression. Time to first VF after 6 months on ART and time to first development of CVD risk markers were analysed using Cox regression models. Sensitivity analyses were done adjusting for Asian BMI thresholds. RESULTS Of 4993 PLHIV (66% male), 62% had pre-treatment BMI in the normal range (18.5-25.0 kg/m2 ), while 26%, 10% and 2% were underweight (< 18.5 kg/m2 ), overweight (25-30 kg/m2) and obese (> 30 kg/m2 ), respectively. Both higher baseline and time-updated BMI were associated with larger CD4 gains compared with normal BMI. After adjusting for Asian BMI thresholds, higher baseline BMIs of 23-27.5 and > 27.5 kg/m2 were associated with larger CD4 increases of 15.6 cells/µL [95% confidence interval (CI): 2.9-28.3] and 28.8 cells/µL (95% CI: 6.6-50.9), respectively, compared with normal BMI (18.5-23 kg/m2 ). PLHIV with BMIs of 25-30 and > 30 kg/m2 were 1.27 times (95% CI: 1.10-1.47) and 1.61 times (95% CI: 1.13-2.24) more likely to develop CVD risk factors. No relationship between pre-treatment BMI and VF was observed. CONCLUSIONS High pre-treatment BMI was associated with better immune reconstitution and CVD risk factor development in an Asian PLHIV cohort.
Collapse
Affiliation(s)
- W M Han
- The Kirby Institute, UNSW, Sydney, NSW, Australia.,HIV-NAT, Thai Red Cross AIDS Research Centre, Bangkok, Thailand
| | - A Jiamsakul
- The Kirby Institute, UNSW, Sydney, NSW, Australia
| | - J Jantarapakde
- HIV-NAT, Thai Red Cross AIDS Research Centre, Bangkok, Thailand
| | - E Yunihastuti
- Faculty of Medicine, Universitas Indonesia - Dr Cipto Mangunkusumo General Hospital, Jakarta, Indonesia
| | - J Y Choi
- Division of Infectious Diseases, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea
| | - R Ditangco
- Research Institute for Tropical Medicine, Muntinlupa City, Philippines
| | - R Chaiwarith
- Research Institute for Health Sciences, Chiang Mai, Thailand
| | - L P Sun
- National Center for HIV/AIDS, Dermatology & STDs, Phnom Penh, Cambodia
| | - S Khusuwan
- Chiangrai Prachanukroh Hospital, Chiang Rai, Thailand
| | - T P Merati
- Faculty of Medicine, Udayana University & Sanglah Hospital, Bali, Indonesia
| | - C D Do
- Bach Mai Hospital, Hanoi, Vietnam
| | - I Azwa
- University Malaya Medical Centre, Kuala Lumpur, Malaysia
| | - M-P Lee
- Queen Elizabeth Hospital, Hong Kong SAR, India
| | - K Van Nguyen
- National Hospital for Tropical Diseases, Hanoi, Vietnam
| | - Y-J Chan
- Taipei Veterans General Hospital, Taipei, Taiwan
| | - S Kiertiburanakul
- Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - O T Ng
- Tan Tock Seng Hospital, Singapore, Singapore
| | - J Tanuma
- National Center for Global Health and Medicine, Tokyo, Japan
| | - S Pujari
- Institute of Infectious Diseases, Pune, India
| | - F Zhang
- Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Y M Gani
- Hospital Sungai Buloh, Sungai Buloh, Malaysia
| | - S Sangle
- BJ Government Medical College and Sassoon General Hospital, Pune, India
| | - J Ross
- TREAT Asia, amfAR - The Foundation for AIDS Research, Bangkok, Thailand
| | - N Kumarasamy
- Chennai Antiviral Research and Treatment Clinical Research Site (CART CRS), VHS-Infectious Diseases Medical Centre, VHS, Chennai, India
| | | |
Collapse
|
25
|
Gelpi M, Ueland PM, Trøseid M, Mocroft A, Lebech AM, Ullum H, Midttun Ø, Lundgren J, Nielsen SD. Abdominal Adipose Tissue Is Associated With Alterations in Tryptophan-Kynurenine Metabolism and Markers of Systemic Inflammation in People With Human Immunodeficiency Virus. J Infect Dis 2020; 221:419-427. [PMID: 31538186 DOI: 10.1093/infdis/jiz465] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 09/11/2019] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND While both adipose tissue accumulation and tryptophan metabolism alterations are features of human immunodeficiency virus (HIV) infection, their interplay is unclear. We investigated associations between abdominal adipose tissue, alterations in kynurenine pathway of tryptophan metabolism, and systemic inflammation in people with HIV (PWH). METHODS Eight hundred sixty-four PWH and 75 uninfected controls were included. Plasma samples were collected and analyzed for kynurenine metabolites, neopterin, high-sensitivity C-reactive protein (hs-CRP), and lipids. Regression models were used to test associations in PWH. RESULTS PWH had higher kynurenine-to-tryptophan ratio than uninfected individuals (P < .001). In PWH, increase in waist-to-hip ratio was associated with higher kynurenine-to-tryptophan ratio (P = .009) and quinolinic-to-kynurenic acid ratio (P = .006) and lower kynurenic acid concentration (P = .019). Quinolinic-to-kynurenic acid ratio was associated with higher hs-CRP (P < .001) and neopterin concentrations (P < .001), while kynurenic acid was associated with lower hs-CRP (P = .025) and neopterin concentrations (P = .034). CONCLUSIONS In PWH, increase in abdominal adipose tissue was associated with increased quinolinic-to-kynurenic acid ratio, suggesting activation of proinflammatory pathway of kynurenine metabolism, with reduction of anti-inflammatory molecules and increase in systemic inflammation. Our results suggest dysregulation of kynurenine metabolism associated with abdominal fat accumulation to be a potential source of inflammation in HIV infection.
Collapse
Affiliation(s)
- Marco Gelpi
- Viro-immunology Research Unit, Department of Infectious Diseases 8632, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Per Magne Ueland
- Section for Pharmacology, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Marius Trøseid
- Section of Clinical Immunology and Infectious Diseases, University Hospital Rikshospitalet, Oslo, Norway
| | - Amanda Mocroft
- HIV Epidemiology and Biostatistics Unit, Department of Infection and Population Health, University College London, London, United Kingdom
| | - Anne-Mette Lebech
- Department of Infectious Diseases, Hvidovre Hospital, Copenhagen University Hospital, Copenhagen, Denmark
| | - Henrik Ullum
- Department of Clinical Immunology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Øivind Midttun
- Section for Pharmacology, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Jens Lundgren
- Viro-immunology Research Unit, Department of Infectious Diseases 8632, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.,Centre of Excellence for Health, Immunity and Infections, Department of Infectious Diseases 8632, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Susanne D Nielsen
- Viro-immunology Research Unit, Department of Infectious Diseases 8632, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| |
Collapse
|
26
|
Abstract
PURPOSE OF REVIEW Immunotherapy strategies alternative to current antiretroviral therapies will need to address viral diversity while increasing the immune system's ability to efficiently target the latent virus reservoir. Antibody-based molecules can be designed based on broadly neutralizing and non-neutralizing antibodies that target free virions and infected cells. These multispecific molecules, either by IgG-like or non-IgG-like in structure, aim to target several independent HIV-1 epitopes and/or engage effector cells to eliminate the replicating virus and infected cells. This detailed review is intended to stimulate discussion on future requirements for novel immunotherapeutic molecules. RECENT FINDINGS Bispecific and trispecific antibodies are engineered as a single molecules to target two or more independent epitopes on the HIV-1 envelope (Env). These antibody-based molecules have increased avidity for Env, leading to improved neutralization potency and breadth compared with single parental antibodies. Furthermore, bispecific and trispecific antibodies that engage cellular receptors with one arm of the molecule help concentrate inhibitory molecules to the sites of potential infection and facilitate engagement of immune effector cells and Env-expressing target cells for their elimination. SUMMARY Recently engineered antibody-based molecules of different sizes and structures show promise in vitro or in vivo and are encouraging candidates for HIV treatment.
Collapse
Affiliation(s)
- Marina Tuyishime
- Department of Surgery, Duke University Medical Center, Durham, NC, USA
| | - Guido Ferrari
- Department of Surgery, Duke University Medical Center, Durham, NC, USA
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC, USA
| |
Collapse
|
27
|
Intestinal Dysbiosis and Markers of Systemic Inflammation in Viscerally and Generally Obese Persons Living With HIV. J Acquir Immune Defic Syndr 2020; 83:81-89. [PMID: 31809363 DOI: 10.1097/qai.0000000000002229] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND The intestinal microbiota contributes to the pathogenesis of obesity and metabolic disorders. People living with HIV (PLWH) have a higher risk for the development of visceral adiposity with accompanying worsened cardiovascular risk. SETTING Convenience sample from an HIV clinic and research unit. METHODS To understand the relationship between adiposity and intestinal dysbiosis, we compared the gut microbiota and inflammatory markers in a cross-sectional study of viscerally obese, generally obese, and lean PLWH. Fecal intestinal microbiota was characterized by 16S ribosomal DNA sequencing. Abdominal CTs quantified subcutaneous adipose tissue and visceral adipose tissue (SAT; VAT). Serum high sensitivity C-reactive protein, adiponectin, leptin, IL-6, MCP-1, and sCD14 were assayed. RESULTS We studied 15, 9, and 11 participants with visceral obesity, general obesity, and lean body type, respectively. The generally obese group were all women and 2/3 African American, whereas the visceral obesity and lean groups were predominantly white and men who have sex with men. Markers of systemic inflammation and sCD14 were higher in general obesity compared with lean. sCD14 was positively correlated with VAT, but not SAT. Bacterial diversity was significantly reduced in participants with visceral and general obesity and composition of intestinal microbiota was significantly different from lean body types. Bacterial alpha diversity was negatively correlated with VAT area, waist/hip ratio, and sCD14, but not with SAT area. CONCLUSIONS In this exploratory study, obesity in general was associated with dysbiotic intestinal microbiota. The relationships of VAT to bacterial diversity and sCD14 suggest that dysbiosis in viscerally obese PLWH could be associated with heightened inflammatory state.
Collapse
|
28
|
Chaillon A, Gianella S, Dellicour S, Rawlings SA, Schlub TE, De Oliveira MF, Ignacio C, Porrachia M, Vrancken B, Smith DM. HIV persists throughout deep tissues with repopulation from multiple anatomical sources. J Clin Invest 2020; 130:1699-1712. [PMID: 31910162 PMCID: PMC7108926 DOI: 10.1172/jci134815] [Citation(s) in RCA: 134] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 12/19/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUNDUnderstanding HIV dynamics across the human body is important for cure efforts. This goal has been hampered by technical difficulties and the challenge of obtaining fresh tissues.METHODSThis observational study evaluated 6 individuals with HIV (n = 4 with viral suppression using antiretroviral [ART] therapy; n = 2 with rebound viremia after stopping ART), who provided serial blood samples before death and their bodies for rapid autopsy. HIV reservoirs were characterized by digital droplet PCR, single-genome amplification, and sequencing of full-length (FL) envelope HIV. Phylogeographic methods were used to reconstruct HIV spread, and generalized linear models were tested for viral factors associated with dispersal.RESULTSAcross participants, HIV DNA levels varied from approximately 0 to 659 copies/106 cells (IQR: 22.9-126.5). A total of 605 intact FL env sequences were recovered in antemortem blood cells and across 28 tissues (IQR: 5-9). Sequence analysis showed (a) the emergence of large, identical, intact HIV RNA populations in blood after cessation of therapy, which repopulated tissues throughout the body; (b) that multiple sites acted as hubs for HIV dissemination but that blood and lymphoid tissues were the main source; (c) that viral exchanges occurred within brain areas and across the blood-brain barrier; and (d) that migration was associated with low HIV divergence between sites and greater diversity at the recipient site.CONCLUSIONHIV reservoirs persisted in all deep tissues, and blood was the main source of dispersal. This may explain why eliminating HIV susceptibility in circulating T cells via bone marrow transplants allowed some individuals with HIV to experience therapy-free remission, even though deeper tissue reservoirs were not targeted.TRIAL REGISTRATIONNot applicable.FUNDINGNIH grants P01 AI31385, P30 AI036214, AI131971-01, AI120009AI036214, HD094646, AI027763, AI134295, and AI68636.
Collapse
Affiliation(s)
| | - Sara Gianella
- Department of Medicine, UCSD, La Jolla, California, USA
| | - Simon Dellicour
- Spatial Epidemiology Lab (SpELL), Université Libre de Bruxelles, Bruxelles, Belgium
- KU Leuven, Department of Microbiology and Immunology, Rega Institute, Laboratory of Computational and Evolutionary Virology, Leuven, Belgium
| | | | - Timothy E. Schlub
- University of Sydney, Faculty of Medicine and Health, Sydney School of Public Health, Sydney, Australia
| | | | | | | | - Bram Vrancken
- KU Leuven, Department of Microbiology and Immunology, Rega Institute, Laboratory of Computational and Evolutionary Virology, Leuven, Belgium
| | | |
Collapse
|
29
|
Bähr I, Spielmann J, Quandt D, Kielstein H. Obesity-Associated Alterations of Natural Killer Cells and Immunosurveillance of Cancer. Front Immunol 2020; 11:245. [PMID: 32231659 PMCID: PMC7082404 DOI: 10.3389/fimmu.2020.00245] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 01/30/2020] [Indexed: 12/13/2022] Open
Abstract
Obesity is accompanied by a systemic chronic low-grade inflammation as well as dysfunctions of several innate and adaptive immune cells. Recent findings emphasize an impaired functionality and phenotype of natural killer (NK) cells under obese conditions. This review provides a detailed overview on research related to overweight and obesity with a particular focus on NK cells. We discuss obesity-associated alterations in subsets, distribution, phenotype, cytotoxicity, cytokine secretion, and signaling cascades of NK cells investigated in vitro as well as in animal and human studies. In addition, we provide recent insights into the effects of physical activity and obesity-associated nutritional factors as well as the reduction of body weight and fat mass on NK cell functions of obese individuals. Finally, we highlight the impact of impaired NK cell physiology on obesity-associated diseases, focusing on the elevated susceptibility for viral infections and increased risk for cancer development and impaired treatment response.
Collapse
Affiliation(s)
- Ina Bähr
- Institute of Anatomy and Cell Biology, Medical Faculty of Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Julia Spielmann
- Institute of Anatomy and Cell Biology, Medical Faculty of Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Dagmar Quandt
- Institute of Anatomy and Cell Biology, Medical Faculty of Martin Luther University Halle-Wittenberg, Halle (Saale), Germany.,Regenerative Medicine Institute (REMEDI) at CÚRAM Centre for Research in Medical Devices, School of Medicine, College of Medicine, Nursing and Health Sciences, National University of Ireland Galway, Galway, Ireland
| | - Heike Kielstein
- Institute of Anatomy and Cell Biology, Medical Faculty of Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| |
Collapse
|
30
|
Gojanovich GS, Shikuma CM, Milne C, Libutti DE, Chow DC, Gerschenson M. Subcutaneous Adipocyte Adenosine Triphosphate Levels in HIV Infected Patients. AIDS Res Hum Retroviruses 2020; 36:75-82. [PMID: 31407586 DOI: 10.1089/aid.2019.0121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Lipoatrophy, or fat wasting, remains a syndrome plaguing HIV+ patients receiving antiretroviral (ARV) therapy. Both HIV infection per se and certain ARV are associated with lowered adipose tissue mitochondrial deoxyribonucleic acid (mtDNA) and mitochondrial ribonucleic acid (mtRNA) levels, but effects on adenosine triphosphate (ATP) production are unclear. We hypothesized that such alterations would accompany lowering of ATP levels in fat of HIV+ patients and would be worse in those displaying lipoatrophy. Gluteal-fold, subcutaneous adipose tissue was obtained from HIV seronegative control patients, from HIV+ ARV-naive patients, and those on ARV with or without lipoatrophy. Cellular ATP was measured in isolated adipocytes and preadipocyte fraction cells by bioluminescence. mtDNA copies/cell and oxidative phosphorylation (OXPHOS) mtRNA transcripts were evaluated by quantitative polymerase chain reactions. ATP levels were consistently higher in preadipocyte fraction cells than adipocytes, but values strongly correlated with each other (r = 0.66, p < .001). ATP levels in adipocytes were higher in both ARV-naive and nonlipoatrophic HIV+ patients compared to seronegative controls, but significantly lower in adipocytes and preadipocytes of lipoatrophic versus other HIV+ patients. Fat mtDNA copies/cell and OXPHOS mtRNA transcripts were lower in lipoatrophic patient samples compared to HIV seronegative. The ratio of specific OXPHOS transcripts to each other was significantly higher in nonlipoatrophic patients versus all groups, and this ratio correlated significantly with ATP levels in adipocytes. Thus, HIV infection is associated with an increase in adipose tissue ATP stores. Decreases in adipose mtDNA and OXPHOS mtRNA are found in those with HIV on ARV; however, ATP level is effected only in patients displaying lipoatrophy.
Collapse
Affiliation(s)
- Greg S. Gojanovich
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Cecilia M. Shikuma
- Department of Medicine, Hawaii Center for AIDS, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Cris Milne
- Department of Medicine, Hawaii Center for AIDS, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Daniel E. Libutti
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Dominic C. Chow
- Department of Medicine, Hawaii Center for AIDS, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
- Department of Pediatrics, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Mariana Gerschenson
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| |
Collapse
|
31
|
Pahar B, Kuebler D, Rasmussen T, Wang X, Srivastav SK, Das A, Veazey RS. Quantification of Viral RNA and DNA Positive Cells in Tissues From Simian Immunodeficiency Virus/Simian Human Immunodeficiency Virus Infected Controller and Progressor Rhesus Macaques. Front Microbiol 2019; 10:2933. [PMID: 31921088 PMCID: PMC6933296 DOI: 10.3389/fmicb.2019.02933] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 12/05/2019] [Indexed: 01/04/2023] Open
Abstract
Eradication of human immunodeficiency virus 1 (HIV-1) from an infected individual cannot be achieved using current antiretroviral therapy (ART) regimens. Viral reservoirs established in early infection remain unaffected by ART and are able to replenish systemic infection upon treatment interruption. Simian immunodeficiency virus (SIV) infected macaque models are useful for studying HIV pathogenesis, treatments, and persistent viral reservoirs. Here, we used the SIV macaque model to examine and quantify RNA and DNA positive cells in tissues from macaques that control viral replication (controllers) and those that have persistently high plasma viremia (progressors). A positive correlation was detected between tissue RNA+ cells and plasma viral load in both mesenteric lymph node (LN) and spleen. Similarly, a positive correlation also observed between DNA+ cells and plasma viral load in ileum and jejunum. Controllers had a lower frequency of both RNA and DNA+ cells in several tissues compared to progressors. However, DNA+ cells were prevalent in mesenteric LN, inguinal LN, colon, midbrain, and bone marrow tissues in both controller and progressors. Organized lymphoid tissues of LNs, spleen, and intestine were found as the major tissues positive for virus. Viral RNA and DNA positive cells were detected in brain and thymus in macaques with high plasma viremia and SIV-encephalitis. Both T cells and macrophages were shown to be infected in several tissues, indicating vaccines and ART should be specifically designed to protect these cells in organized lymphoid tissues. These results indicate ART should target infected cells in secondary lymphoid organs to reduce both productively and latently infected cells.
Collapse
Affiliation(s)
- Bapi Pahar
- Division of Comparative Pathology, Tulane National Primate Research Center, Covington, LA, United States
| | - Dot Kuebler
- Division of Comparative Pathology, Tulane National Primate Research Center, Covington, LA, United States
| | - Terri Rasmussen
- Division of Comparative Pathology, Tulane National Primate Research Center, Covington, LA, United States
| | - Xiaolei Wang
- Division of Comparative Pathology, Tulane National Primate Research Center, Covington, LA, United States
| | - Sudesh K Srivastav
- Department of Biostatistics and Bioinformatics, Tulane University, New Orleans, LA, United States
| | - Arpita Das
- Division of Microbiology, Tulane National Primate Research Center, Covington, LA, United States
| | - Ronald S Veazey
- Division of Comparative Pathology, Tulane National Primate Research Center, Covington, LA, United States
| |
Collapse
|
32
|
Bourgeois C, Gorwood J, Barrail-Tran A, Lagathu C, Capeau J, Desjardins D, Le Grand R, Damouche A, Béréziat V, Lambotte O. Specific Biological Features of Adipose Tissue, and Their Impact on HIV Persistence. Front Microbiol 2019; 10:2837. [PMID: 31921023 PMCID: PMC6927940 DOI: 10.3389/fmicb.2019.02837] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 11/22/2019] [Indexed: 12/19/2022] Open
Abstract
Although white AT can contribute to anti-infectious immune responses, it can also be targeted and perturbed by pathogens. The AT's immune involvement is primarily due to strong pro-inflammatory responses (with both local and paracrine effects), and the large number of fat-resident macrophages. Adipocytes also exert direct antimicrobial responses. In recent years, it has been found that memory T cells accumulate in AT, where they provide efficient secondary responses against viral pathogens. These observations have prompted researchers to re-evaluate the links between obesity and susceptibility to infections. In contrast, AT serves as a reservoir for several persistence pathogens, such as human adenovirus Ad-36, Trypanosoma gondii, Mycobacterium tuberculosis, influenza A virus, and cytomegalovirus (CMV). The presence and persistence of bacterial DNA in AT has led to the concept of a tissue-specific microbiota. The unexpected coexistence of immune cells and pathogens within the specific AT environment is intriguing, and its impact on anti-infectious immune responses requires further evaluation. AT has been recently identified as a site of HIV persistence. In the context of HIV infection, AT is targeted by both the virus and the antiretroviral drugs. AT's intrinsic metabolic features, large overall mass, and wide distribution make it a major tissue reservoir, and one that may contribute to the pathophysiology of chronic HIV infections. Here, we review the immune, metabolic, viral, and pharmacological aspects that contribute to HIV persistence in AT. We also evaluate the respective impacts of both intrinsic and HIV-induced factors on AT's involvement as a viral reservoir. Lastly, we examine the potential consequences of HIV persistence on the metabolic and immune activities of AT.
Collapse
Affiliation(s)
- Christine Bourgeois
- Center for Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, CEA, Université Paris Sud, INSERM U1184, Fontenay-aux-Roses, France
| | - Jennifer Gorwood
- INSERM UMR_S 938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-Métabolisme et Nutrition (ICAN), Sorbonne Université, Paris, France
| | - Aurélie Barrail-Tran
- Center for Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, CEA, Université Paris Sud, INSERM U1184, Fontenay-aux-Roses, France
- AP-HP, Service de Médecine Interne et Immunologie Clinique, Hôpital Bicêtre, Groupe Hospitalier Universitaire Paris Sud, Le Kremlin-Bicêtre, France
| | - Claire Lagathu
- INSERM UMR_S 938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-Métabolisme et Nutrition (ICAN), Sorbonne Université, Paris, France
| | - Jacqueline Capeau
- INSERM UMR_S 938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-Métabolisme et Nutrition (ICAN), Sorbonne Université, Paris, France
| | - Delphine Desjardins
- Center for Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, CEA, Université Paris Sud, INSERM U1184, Fontenay-aux-Roses, France
| | - Roger Le Grand
- Center for Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, CEA, Université Paris Sud, INSERM U1184, Fontenay-aux-Roses, France
| | - Abderaouf Damouche
- Center for Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, CEA, Université Paris Sud, INSERM U1184, Fontenay-aux-Roses, France
| | - Véronique Béréziat
- INSERM UMR_S 938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-Métabolisme et Nutrition (ICAN), Sorbonne Université, Paris, France
| | - Olivier Lambotte
- Center for Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, CEA, Université Paris Sud, INSERM U1184, Fontenay-aux-Roses, France
- AP-HP, Service de Médecine Interne et Immunologie Clinique, Hôpital Bicêtre, Groupe Hospitalier Universitaire Paris Sud, Le Kremlin-Bicêtre, France
| |
Collapse
|
33
|
Darcis G, Berkhout B, Pasternak AO. The Quest for Cellular Markers of HIV Reservoirs: Any Color You Like. Front Immunol 2019; 10:2251. [PMID: 31616425 PMCID: PMC6763966 DOI: 10.3389/fimmu.2019.02251] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 09/05/2019] [Indexed: 12/12/2022] Open
Abstract
Combination antiretroviral therapy (ART) suppresses human immunodeficiency virus (HIV) replication and improves immune function, but is unable to eradicate the virus. Therefore, development of an HIV cure has become one of the main priorities of the HIV research field. The main obstacle for an HIV cure is the formation of latent viral reservoirs, where the virus is able to “hide” despite decades of therapy, just to reignite active replication once therapy is stopped. Revealing HIV hiding places is thus central to HIV cure research, but the absence of markers of these reservoir cells greatly complicates the search for a cure. Identification of one or several marker(s) of latently infected cells would represent a significant step forward toward a better description of the cell types involved and improved understanding of HIV latency. Moreover, it could provide a “handle” for selective therapeutic targeting of the reservoirs. A number of cellular markers of HIV reservoir have recently been proposed, including immune checkpoint molecules, CD2, and CD30. CD32a is perhaps the most promising of HIV reservoir markers as it is reported to be associated with a very prominent enrichment in HIV DNA, although this finding has been challenged. In this review, we provide an update on the current knowledge about HIV reservoir markers. We specifically highlight studies that characterized markers of persistently infected cells in the lymphoid tissues.
Collapse
Affiliation(s)
- Gilles Darcis
- Laboratory of Experimental Virology, Department of Medical Microbiology, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands.,Infectious Diseases Department, Liège University Hospital, Liège, Belgium
| | - Ben Berkhout
- Laboratory of Experimental Virology, Department of Medical Microbiology, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Alexander O Pasternak
- Laboratory of Experimental Virology, Department of Medical Microbiology, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| |
Collapse
|
34
|
de Sousa JR, Da Costa Vasconcelos PF, Quaresma JAS. Functional aspects, phenotypic heterogeneity, and tissue immune response of macrophages in infectious diseases. Infect Drug Resist 2019; 12:2589-2611. [PMID: 31686866 PMCID: PMC6709804 DOI: 10.2147/idr.s208576] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 07/05/2019] [Indexed: 12/13/2022] Open
Abstract
Macrophages are a functionally heterogeneous group of cells with specialized functions depending not only on their subgroup but also on the function of the organ or tissue in which the cells are located. The concept of macrophage phenotypic heterogeneity has been investigated since the 1980s, and more recent studies have identified a diverse spectrum of phenotypic subpopulations. Several types of macrophages play a central role in the response to infectious agents and, along with other components of the immune system, determine the clinical outcome of major infectious diseases. Here, we review the functions of various macrophage phenotypic subpopulations, the concept of macrophage polarization, and the influence of these cells on the evolution of infections. In addition, we emphasize their role in the immune response in vivo and in situ, as well as the molecular effectors and signaling mechanisms used by these cells. Furthermore, we highlight the mechanisms of immune evasion triggered by infectious agents to counter the actions of macrophages and their consequences. Our aim here is to provide an overview of the role of macrophages in the pathogenesis of critical transmissible diseases and discuss how elucidation of this relationship could enhance our understanding of the host-pathogen association in organ-specific immune responses.
Collapse
Affiliation(s)
- Jorge Rodrigues de Sousa
- Tropical Medicine Center, Federal University of Pará, Belém, PA, Brazil
- Evandro Chagas Institute, Ministry of Health, Ananindeua, PA, Brazil
| | - Pedro Fernando Da Costa Vasconcelos
- Evandro Chagas Institute, Ministry of Health, Ananindeua, PA, Brazil
- Center of Biological and Health Sciences, State University of Pará, Belém, PA, Brazil
| | - Juarez Antonio Simões Quaresma
- Tropical Medicine Center, Federal University of Pará, Belém, PA, Brazil
- Evandro Chagas Institute, Ministry of Health, Ananindeua, PA, Brazil
- Center of Biological and Health Sciences, State University of Pará, Belém, PA, Brazil
- School of Medicine, São Paulo University, São Paulo, SP, Brazil
| |
Collapse
|
35
|
Spudich S, Robertson KR, Bosch RJ, Gandhi RT, Cyktor JC, Mar H, Macatangay BJ, Lalama CM, Rinaldo C, Collier AC, Godfrey C, Eron JJ, McMahon D, Jacobs JL, Koontz D, Hogg E, Vecchio A, Mellors JW. Persistent HIV-infected cells in cerebrospinal fluid are associated with poorer neurocognitive performance. J Clin Invest 2019; 129:3339-3346. [PMID: 31305262 PMCID: PMC6668666 DOI: 10.1172/jci127413] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 05/14/2019] [Indexed: 12/20/2022] Open
Abstract
BACKGROUNDPersistence of HIV in sanctuary sites despite antiretroviral therapy (ART) presents a barrier to HIV remission and may affect neurocognitive function. We assessed HIV persistence in cerebrospinal fluid (CSF) and associations with inflammation and neurocognitive performance during long-term ART.METHODSParticipants enrolled in the AIDS Clinical Trials Group (ACTG) HIV Reservoirs Cohort Study (A5321) underwent concurrent lumbar puncture, phlebotomy, and neurocognitive assessment. Cell-associated HIV DNA and HIV RNA (CA-DNA, CA-RNA) were measured by quantitative PCR (qPCR). in peripheral blood mononuclear cells (PBMCs) and in cell pellets from CSF. In CSF supernatant and blood plasma, cell-free HIV RNA was quantified by qPCR with single copy sensitivity, and inflammatory biomarkers were measured by enzyme immunoassay.RESULTSSixty-nine participants (97% male, median age 50 years, CD4 696 cells/mm3, plasma HIV RNA <100 copies/mL) were assessed after a median 8.6 years of ART. In CSF, cell-free RNA was detected in 4%, CA-RNA in 9%, and CA-DNA in 48% of participants (median level 2.1 copies/103 cells). Detection of cell-free CSF HIV RNA was associated with higher plasma HIV RNA (P = 0.007). CSF inflammatory biomarkers did not correlate with HIV persistence measures. Detection of CSF CA-DNA HIV was associated with worse neurocognitive outcomes including global deficit score (P = 0.005), even after adjusting for age and nadir CD4 count.CONCLUSIONHIV-infected cells persist in CSF in almost half of individuals on long-term ART, and their detection is associated with poorer neurocognitive performance.FUNDINGThis observational study, AIDS Clinical Trials Group (ACTG) HIV Reservoirs Cohort Study (A5321), was supported by the National Institutes of Health (NIAID and NIMH).
Collapse
Affiliation(s)
| | - Kevin R. Robertson
- University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Ronald J. Bosch
- Harvard TH Chan School of Public Health, Boston, Massachusetts, USA
| | | | | | - Hanna Mar
- Harvard TH Chan School of Public Health, Boston, Massachusetts, USA
| | | | | | | | | | | | - Joseph J. Eron
- University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | | | | | - Dianna Koontz
- University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Evelyn Hogg
- Social & Scientific Systems, Silver Spring, Maryland, USA
| | - Alyssa Vecchio
- University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | | |
Collapse
|
36
|
Lewis DE, Lysaght J, Wu H. Editorial: T Cell Alterations in Adipose Tissue During Obesity, HIV, and Cancer. Front Immunol 2019; 10:1190. [PMID: 31191549 PMCID: PMC6546799 DOI: 10.3389/fimmu.2019.01190] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 05/10/2019] [Indexed: 01/25/2023] Open
Affiliation(s)
- Dorothy E Lewis
- McGovern Medical School, The University of Texas Health Science Center, Houston, TX, United States
| | - Joanne Lysaght
- Department of Surgery, Trinity Translational Medicine Institute St. James's Hospital, Dublin, Ireland
| | - Huaizhu Wu
- Section of Cardiovascular Research, Department of Medicine, Baylor College of Medicine, Houston, TX, United States
| |
Collapse
|
37
|
Predatory bacteria can protect SKH-1 mice from a lethal plague challenge. Sci Rep 2019; 9:7225. [PMID: 31076594 PMCID: PMC6510791 DOI: 10.1038/s41598-019-43467-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 04/11/2019] [Indexed: 12/13/2022] Open
Abstract
With the rise of antimicrobial resistance, novel ways to treat bacterial infections are required and the use of predatory bacteria may be one such approach. Bdellovibrio species have been shown in vitro to predate on a wide range of other Gram-negative bacteria, including CDC category A/B pathogens such as Yersinia pestis. The data reported here show that treatment of SKH-1 mice with Bdellovibrio bacteriovorus HD100 provided significant protection from a lethal challenge of Yersinia pestis CO92. This is the first report of protection conferred by predation in vivo against a systemic pathogen challenge. However, this protective effect was not observed in a preliminary study with Balb/c mice. Therefore the effects of the predatory bacteria are complex and may be dependent on immune status/genetics of the host. Overall, predatory bacteria may have utility as a therapeutic modality but further work is required to understand the predator-host interaction.
Collapse
|
38
|
Bandera A, Gori A, Clerici M, Sironi M. Phylogenies in ART: HIV reservoirs, HIV latency and drug resistance. Curr Opin Pharmacol 2019; 48:24-32. [PMID: 31029861 DOI: 10.1016/j.coph.2019.03.003] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 03/07/2019] [Accepted: 03/12/2019] [Indexed: 11/17/2022]
Abstract
Combination antiretroviral therapy (ART) has significantly reduced the morbidity and mortality resulting from HIV infection. ART is, however, unable to eradicate HIV, which persists latently in several cell types and tissues. Phylogenetic analyses suggested that the proliferation of cells infected before ART initiation is mainly responsible for residual viremia, although controversy still exists. Conversely, it is widely accepted that drug resistance mutations (DRMs) do not appear during ART in patients with suppressed viral loads. Studies based on sequence clustering have in fact indicated that, at least in developed countries, HIV-infected ART-naive patients are the major source of drug-resistant viruses. Analysis of longitudinally sampled sequences have also shown that DRMs have variable fitness costs, which are strongly influenced by the viral genetic background.
Collapse
Affiliation(s)
- Alessandra Bandera
- Infectious Diseases Unit, Department of Internal Medicine, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20090 Milan, Italy; Department of Pathophysiology and Transplantation, School of Medicine and Surgery, University of Milan, 20090 Milan, Italy
| | - Andrea Gori
- Infectious Diseases Unit, Department of Internal Medicine, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20090 Milan, Italy; Department of Pathophysiology and Transplantation, School of Medicine and Surgery, University of Milan, 20090 Milan, Italy
| | - Mario Clerici
- Department of Pathophysiology and Transplantation, School of Medicine and Surgery, University of Milan, 20090 Milan, Italy; IRCCS Fondazione Don Carlo Gnocchi, 20148 Milan, Italy
| | - Manuela Sironi
- Bioinformatics, Scientific Institute, IRCCS E. MEDEA, 23842 Bosisio Parini, Lecco, Italy.
| |
Collapse
|
39
|
Laparra A, Tricot S, Le Van M, Damouche A, Gorwood J, Vaslin B, Favier B, Benoist S, Ho Tsong Fang R, Bosquet N, Le Grand R, Chapon C, Lambotte O, Bourgeois C. The Frequencies of Immunosuppressive Cells in Adipose Tissue Differ in Human, Non-human Primate, and Mouse Models. Front Immunol 2019; 10:117. [PMID: 30804937 PMCID: PMC6371887 DOI: 10.3389/fimmu.2019.00117] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 01/15/2019] [Indexed: 12/20/2022] Open
Abstract
Although the metabolic properties of white adipose tissue have been extensively characterized, the tissue's immune properties are now attracting renewed interest. Early experiments in a mouse model suggested that white adipose tissue contains a high density of regulatory T cells (Tregs), and so it was assumed that all adipose tissue has an immunosuppressive profile—even though the investigation was limited to visceral body fat in relatively old male mice. This observation was also corroborated by high frequencies of other cell subsets with immunoregulatory properties, such as anti-inflammatory M2 macrophages, and regulatory B cells. Many studies have since evidenced the persistence of pathogens (trypanosomes, Mycobacterium tuberculosis, HIV, etc.) in adipose tissue. However, a recent report identified adipose tissue as a reservoir of memory T cells capable of protecting animals upon rechallenge. The immune potential of lean adipose tissue thus remains to be further investigated. Here, we compared the relative proportions of immune cells (and Tregs in particular) in lean adipose tissue collected from humans, a non-human primate (the cynomolgus macaque), and three mouse models. We demonstrated that the proportion of Foxp3+ Tregs in visceral adipose tissue was low in all models other than the C57Bl/6 mouse. These low values were not linked to correspondingly low proportions of effector cells because T lymphocytes (a main target of Treg suppression) were more frequent in cynomolgus macaques than in C57Bl/6 mice and (to a lesser extent) humans. In contrast, the proportions of macrophages and B cells were lower in cynomolgus macaques than in C57Bl/6 mice. We also observed a higher proportion of CD34+CD45- cells (which predominantly correspond to mesenchymal stem cells) in C57Bl/6 mouse and cynomolgus macaques than in humans and both for subcutaneous and visceral adipose tissues. Lastly, a microscopy analysis confirmed predominant proportion of adipocytes within adipose tissue, and highlighted a marked difference in adipocyte size among the three species studied. In conclusion, our study of lean, middle-aged, male individuals showed that the immune compartment of adipose tissue differed markedly in humans vs. mice, and suggesting the presence of a more inflammatory steady-state profile in humans than mice.
Collapse
Affiliation(s)
- Ariane Laparra
- CEA - Université Paris Sud 11 - INSERM U1184, Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, Fontenay-aux-Roses, France
| | - Sabine Tricot
- CEA - Université Paris Sud 11 - INSERM U1184, Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, Fontenay-aux-Roses, France
| | - Mélanie Le Van
- CEA - Université Paris Sud 11 - INSERM U1184, Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, Fontenay-aux-Roses, France
| | - Abderaouf Damouche
- CEA - Université Paris Sud 11 - INSERM U1184, Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, Fontenay-aux-Roses, France
| | - Jennifer Gorwood
- CEA - Université Paris Sud 11 - INSERM U1184, Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, Fontenay-aux-Roses, France
| | - Bruno Vaslin
- CEA - Université Paris Sud 11 - INSERM U1184, Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, Fontenay-aux-Roses, France
| | - Benoit Favier
- CEA - Université Paris Sud 11 - INSERM U1184, Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, Fontenay-aux-Roses, France
| | - Stéphane Benoist
- Assistance Publique Hôpitaux de Paris, Hôpital Bicêtre, Service de Chirurgie Digestive et Oncologique, Le Kremlin-Bicêtre, France
| | - Raphael Ho Tsong Fang
- CEA - Université Paris Sud 11 - INSERM U1184, Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, Fontenay-aux-Roses, France
| | - Nathalie Bosquet
- CEA - Université Paris Sud 11 - INSERM U1184, Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, Fontenay-aux-Roses, France
| | - Roger Le Grand
- CEA - Université Paris Sud 11 - INSERM U1184, Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, Fontenay-aux-Roses, France
| | - Catherine Chapon
- CEA - Université Paris Sud 11 - INSERM U1184, Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, Fontenay-aux-Roses, France
| | - Olivier Lambotte
- CEA - Université Paris Sud 11 - INSERM U1184, Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, Fontenay-aux-Roses, France.,Université Paris Sud, Le Kremlin Bicêtre, France.,Assistance Publique-Hôpitaux de Paris, Service de Médecine Interne et Immunologie Clinique, Groupe Hospitalier Universitaire Paris Sud, Hôpital Bicêtre, Le Kremlin-Bicêtre, France
| | - Christine Bourgeois
- CEA - Université Paris Sud 11 - INSERM U1184, Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, Fontenay-aux-Roses, France
| |
Collapse
|
40
|
Beck SE, Veenhuis RT, Blankson JN. Does B Cell Follicle Exclusion of CD8+ T Cells Make Lymph Nodes Sanctuaries of HIV Replication? Front Immunol 2019; 10:2362. [PMID: 31649673 PMCID: PMC6794453 DOI: 10.3389/fimmu.2019.02362] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 09/19/2019] [Indexed: 12/25/2022] Open
Abstract
As we learn more about the HIV latent reservoir, we continue to discover that the viral reservoir is more complicated than just a pool of infected resting memory CD4+ T cells in peripheral blood. Evidence increasingly points to both certain tissues and certain types of cells as potential viral reservoirs. T follicular helper cells (TFH) are prime targets of HIV infection-this creates a sanctuary for infected cells because CD8+ T cells generally do not enter lymph node follicles unless they express CXCR5, and are not as effective at killing infected CD4+ T cells as peripheral CD8+ T cells. In this review, we summarize the current state of research on TFH cell infection in peripheral lymphoid tissues and focus on the question of whether CD8+ T cell exclusion from B cell follicles is responsible, at least in part, for establishing secondary lymphoid tissue B cell follicles as an anatomic site of HIV transcription and replication.
Collapse
Affiliation(s)
- Sarah E. Beck
- Department of Molecular and Comparative Pathobiology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Rebecca T. Veenhuis
- Department of Molecular and Comparative Pathobiology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Joel N. Blankson
- Department of Molecular and Comparative Pathobiology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States
- *Correspondence: Joel N. Blankson
| |
Collapse
|
41
|
Paquin-Proulx D, Greenspun BC, Kitchen SM, Saraiva Raposo RA, Nixon DF, Grayfer L. Human interleukin-34-derived macrophages have increased resistance to HIV-1 infection. Cytokine 2018; 111:272-277. [PMID: 30241016 DOI: 10.1016/j.cyto.2018.09.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 07/17/2018] [Accepted: 09/11/2018] [Indexed: 02/06/2023]
Abstract
The establishment of latent HIV-1 reservoirs in terminally differentiated cells represents a major impediment to the success of antiretroviral therapies. Notably, macrophages (Mϕs) are susceptible to HIV-1 infection and recent evidence suggests that they may be involved in long-term HIV-1 persistence. While the extensive functional heterogeneity seen across the Mϕ cell lineage parallels the spectrum of HIV-1 susceptibility reported across these cell subsets, the facets of Mϕ HIV-1 resistance and susceptibility remain to be fully defined. Notably, the differentiation of most Mϕ subsets depends on signaling through the macrophage colony-stimulating factor receptor (M-CSFR), which in addition to M-CSF, is now known to bind the unrelated interleukin-34 (IL-34) cytokine. The biological need for two M-CSFR ligands awaits full elucidation. Here, we report that Mϕs differentiated from human peripheral blood monocytes with IL-34 are substantially more resistant to HIV-1 infection than M-CSF-derived Mϕs. Moreover, while both Mϕ subsets express comparable surface protein levels of the HIV-1 receptor and co-receptor, CD4 and CCR5 respectively, the IL-34-Mϕs express significantly greater levels of pertinent restriction factor genes, potentially accounting for their greater resistance to HIV-1 infection than that observed in M-CSF-Mϕs. Together, our findings underline previously unexplored differentiation pathways resulting in HIV-1-susceptible and resistant Mϕ subsets and pave the way for further research that may overcome one of the last major hurdles in developing more successful antiretroviral therapy.
Collapse
Affiliation(s)
- Dominic Paquin-Proulx
- Department of Microbiology, Immunology & Tropical Medicine, The George Washington University, Washington, DC, USA
| | - Benjamin C Greenspun
- Department of Microbiology, Immunology & Tropical Medicine, The George Washington University, Washington, DC, USA
| | - Shannon M Kitchen
- Department of Microbiology, Immunology & Tropical Medicine, The George Washington University, Washington, DC, USA
| | - Rui André Saraiva Raposo
- Department of Microbiology, Immunology & Tropical Medicine, The George Washington University, Washington, DC, USA
| | - Douglas F Nixon
- Department of Microbiology, Immunology & Tropical Medicine, The George Washington University, Washington, DC, USA
| | - Leon Grayfer
- Department of Biological Sciences, The George Washington University, Washington, DC, USA.
| |
Collapse
|
42
|
Nikitina E, Larionova I, Choinzonov E, Kzhyshkowska J. Monocytes and Macrophages as Viral Targets and Reservoirs. Int J Mol Sci 2018; 19:E2821. [PMID: 30231586 PMCID: PMC6163364 DOI: 10.3390/ijms19092821] [Citation(s) in RCA: 146] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 09/10/2018] [Accepted: 09/14/2018] [Indexed: 02/07/2023] Open
Abstract
Viruses manipulate cell biology to utilize monocytes/macrophages as vessels for dissemination, long-term persistence within tissues and virus replication. Viruses enter cells through endocytosis, phagocytosis, macropinocytosis or membrane fusion. These processes play important roles in the mechanisms contributing to the pathogenesis of these agents and in establishing viral genome persistence and latency. Upon viral infection, monocytes respond with an elevated expression of proinflammatory signalling molecules and antiviral responses, as is shown in the case of the influenza, Chikungunya, human herpes and Zika viruses. Human immunodeficiency virus initiates acute inflammation on site during the early stages of infection but there is a shift of M1 to M2 at the later stages of infection. Cytomegalovirus creates a balance between pro- and anti-inflammatory processes by inducing a specific phenotype within the M1/M2 continuum. Despite facilitating inflammation, infected macrophages generally display abolished apoptosis and restricted cytopathic effect, which sustains the virus production. The majority of viruses discussed in this review employ monocytes/macrophages as a repository but certain viruses use these cells for productive replication. This review focuses on viral adaptations to enter monocytes/macrophages, immune escape, reprogramming of infected cells and the response of the host cells.
Collapse
Affiliation(s)
- Ekaterina Nikitina
- Department of Episomal-Persistent DNA in Cancer- and Chronic Diseases, German Cancer Research Center, 69120 Heidelberg, Germany.
- Department of Oncovirology, Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk 634050, Russia.
- Department of Translational Cellular and Molecular Biomedicine, Tomsk State University, Tomsk 634050, Russia.
| | - Irina Larionova
- Department of Translational Cellular and Molecular Biomedicine, Tomsk State University, Tomsk 634050, Russia.
- Department of Molecular Oncology and Immunology, Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk 634050, Russia.
| | - Evgeniy Choinzonov
- Head and Neck Department, Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk 634050, Russia.
| | - Julia Kzhyshkowska
- Department of Translational Cellular and Molecular Biomedicine, Tomsk State University, Tomsk 634050, Russia.
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, 68167 Heidelberg, Germany.
| |
Collapse
|
43
|
Couturier J, Winchester LC, Suliburk JW, Wilkerson GK, Podany AT, Agarwal N, Xuan Chua CY, Nehete PN, Nehete BP, Grattoni A, Sastry KJ, Fletcher CV, Lake JE, Balasubramanyam A, Lewis DE. Adipocytes impair efficacy of antiretroviral therapy. Antiviral Res 2018; 154:140-148. [PMID: 29630975 DOI: 10.1016/j.antiviral.2018.04.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2017] [Revised: 03/31/2018] [Accepted: 04/03/2018] [Indexed: 01/05/2023]
Abstract
Adequate distribution of antiretroviral drugs to infected cells in HIV patients is critical for viral suppression. In humans and primates, HIV- and SIV-infected CD4 T cells in adipose tissues have recently been identified as reservoirs for infectious virus. To better characterize adipose tissue as a pharmacological sanctuary for HIV-infected cells, in vitro experiments were conducted to assess antiretroviral drug efficacy in the presence of adipocytes, and drug penetration in adipose tissue cells (stromal-vascular-fraction cells and mature adipocytes) was examined in treated humans and monkeys. Co-culture experiments between HIV-1-infected CD4 T cells and primary human adipocytes showed that adipocytes consistently reduced the antiviral efficacy of the nucleotide reverse transcriptase inhibitor tenofovir and its prodrug forms tenofovir disoproxil fumarate (TDF) and tenofovir alafenamide (TAF). In HIV-infected persons, LC-MS/MS analysis of intracellular lysates derived from adipose tissue stromal-vascular-fraction cells or mature adipocytes suggested that integrase inhibitors penetrate adipose tissue, whereas penetration of nucleoside/nucleotide reverse transcriptase inhibitors such as TDF, emtricitabine, abacavir, and lamivudine is restricted. The limited distribution and functions of key antiretroviral drugs within fat depots may contribute to viral persistence in adipose tissue.
Collapse
Affiliation(s)
- Jacob Couturier
- Division of Infectious Diseases, Department of Internal Medicine, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Lee C Winchester
- Department of Pharmacy Practice, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, USA
| | - James W Suliburk
- Department of Surgery, Baylor College of Medicine, Houston, TX, USA
| | - Gregory K Wilkerson
- Department of Veterinary Sciences, The University of Texas MD Anderson Cancer Center, Bastrop, TX, USA
| | - Anthony T Podany
- Department of Pharmacy Practice, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, USA
| | - Neeti Agarwal
- Division of Diabetes, Endocrinology and Metabolism, Department of Medicine, Baylor College of Medicine, Houston, TX, USA
| | | | - Pramod N Nehete
- Department of Veterinary Sciences, The University of Texas MD Anderson Cancer Center, Bastrop, TX, USA
| | - Bharti P Nehete
- Department of Veterinary Sciences, The University of Texas MD Anderson Cancer Center, Bastrop, TX, USA
| | - Alessandro Grattoni
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, USA
| | - K Jagannadha Sastry
- Department of Immunology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Courtney V Fletcher
- Department of Pharmacy Practice, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, USA
| | - Jordan E Lake
- Division of Infectious Diseases, Department of Internal Medicine, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Ashok Balasubramanyam
- Division of Diabetes, Endocrinology and Metabolism, Department of Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Dorothy E Lewis
- Division of Infectious Diseases, Department of Internal Medicine, University of Texas Health Science Center at Houston, Houston, TX, USA.
| |
Collapse
|