1
|
Okpaise D, Sluis-Cremer N, Rappocciolo G, Rinaldo CR. Cholesterol Metabolism in Antigen-Presenting Cells and HIV-1 Trans-Infection of CD4 + T Cells. Viruses 2023; 15:2347. [PMID: 38140588 PMCID: PMC10747884 DOI: 10.3390/v15122347] [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: 10/25/2023] [Revised: 11/28/2023] [Accepted: 11/28/2023] [Indexed: 12/24/2023] Open
Abstract
Antiretroviral therapy (ART) provides an effective method for managing HIV-1 infection and preventing the onset of AIDS; however, it is ineffective against the reservoir of latent HIV-1 that persists predominantly in resting CD4+ T cells. Understanding the mechanisms that facilitate the persistence of the latent reservoir is key to developing an effective cure for HIV-1. Of particular importance in the establishment and maintenance of the latent viral reservoir is the intercellular transfer of HIV-1 from professional antigen-presenting cells (APCs-monocytes/macrophages, myeloid dendritic cells, and B lymphocytes) to CD4+ T cells, termed trans-infection. Whereas virus-to-cell HIV-1 cis infection is sensitive to ART, trans-infection is impervious to antiviral therapy. APCs from HIV-1-positive non-progressors (NPs) who control their HIV-1 infection in the absence of ART do not trans-infect CD4+ T cells. In this review, we focus on this unique property of NPs that we propose is driven by a genetically inherited, altered cholesterol metabolism in their APCs. We focus on cellular cholesterol homeostasis and the role of cholesterol metabolism in HIV-1 trans-infection, and notably, the link between cholesterol efflux and HIV-1 trans-infection in NPs.
Collapse
Affiliation(s)
| | | | | | - Charles R. Rinaldo
- Department of Medicine, Division of Infectious Diseases, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA; (D.O.); (N.S.-C.); (G.R.)
| |
Collapse
|
2
|
Smith SA, Murray PM, Amancha PK, Ackerley CG, Tharp GK, Bosinger SE, Amara RR, Kelley CF. T-cell activation and B-cell interaction signatures in rectal tissues are associated with HIV replication in ex-vivo model of infection. AIDS 2022; 36:2101-2106. [PMID: 35969202 PMCID: PMC10228710 DOI: 10.1097/qad.0000000000003356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The rectal mucosa is a critical site of HIV vulnerability. We sought to identify transcriptomic features of rectal mucosal tissue prior to exposure associated with support or restriction of HIV replication. DESIGN Rectal tissue from HIV-negative cis gender men ( n = 57) underwent concurrent RNAseq transcriptomic analyses (two biopsies/participant) and challenge with HIV in the ex-vivo explant model of infection (three biopsies challenged/participant) as part of a larger cohort study to understand the rectal mucosal immune environment among MSM. METHODS P24 was quantified in the explant supernatants over a culture period of 18 days via ELISA. Participant median p24 log area under the curve was correlated with bulk transcriptomic data (Illumina HiSeq3000) to identify associations between gene expression and p24 production. Significant differentially expressed genes (DEGs) were identified via DESeq2 analysis and analyzed with Reactome to identify pathways of interest. RESULTS In total, 183 DEG (181 upregulated, two downregulated) were associated with higher p24 accumulation in the ex-vivo challenge model, including T-cell activation, B-cell function, and chemokine DEG. Reactome analysis of the upregulated genes identified 'Adaptive Immune System', 'Cytokine Signaling in Immune System', and 'Innate Immune System' as significantly upregulated pathways. CONCLUSION For the first time, we identified rectal tissue transcriptomic signatures associated with increased p24 production utilizing an ex-vivo model. Our findings are highly relevant to HIV transmission and the early establishment of HIV reservoirs in humans, and future studies should examine the identified pathways as targets for new or improved biomedical prevention or treatment interventions.
Collapse
Affiliation(s)
- S. Abigail Smith
- Division of Infectious Disease, The Hope Clinic of the Emory Vaccine Center, Decatur, GA, USA
| | - Phillip M. Murray
- Division of Infectious Disease, The Hope Clinic of the Emory Vaccine Center, Decatur, GA, USA
| | - Praveen K. Amancha
- Division of Infectious Disease, The Hope Clinic of the Emory Vaccine Center, Decatur, GA, USA
| | - Cassie G. Ackerley
- Division of Infectious Disease, The Hope Clinic of the Emory Vaccine Center, Decatur, GA, USA
| | - Gregory K. Tharp
- Emory National Primate Research Center, Emory University, Atlanta, GA, USA
| | - Steven E. Bosinger
- Emory National Primate Research Center, Emory University, Atlanta, GA, USA
| | - Rama R. Amara
- Emory National Primate Research Center, Emory University, Atlanta, GA, USA
| | - Colleen F. Kelley
- Division of Infectious Disease, The Hope Clinic of the Emory Vaccine Center, Decatur, GA, USA
| |
Collapse
|
3
|
Zhou K, Lu D, You J, Liu T, Sun J, Lu Y, Pan J, Li Y, Liu C. Integrated plasma pharmacochemistry and network pharmacology to explore the mechanism of Gerberae Piloselloidis Herba in treatment of allergic asthma. JOURNAL OF ETHNOPHARMACOLOGY 2022; 298:115624. [PMID: 35970314 DOI: 10.1016/j.jep.2022.115624] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 07/21/2022] [Accepted: 08/06/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Gerberae Piloselloidis Herba (GPH), a commonly used traditional medicine in China, is derived from Gerbera piloselloides (Linn.) Cass. It is featured by its special bioactivities as antitussive, expectorant, anti-asthma, anti-bacterial, anti-tumor, uterine analgesia, and immunity-enhancing. With a long history of medication in ethnic minority areas in China, it is often used as an effective treatment for cough and sore throat as well as allergic asthma. Although our previous investigation also has discovered GPH performed effective treatment on allergic asthma, its underlying mechanism remains unclear. AIM OF THE STUDY This research aims to reveal the pharmacological mechanism of GPH in the treatment for allergic asthma through combination of plasma pharmacology and network pharmacology. MATERIALS AND METHODS Firstly, the components of GPH in blood samples were identified using UHPLC- Q-Orbitrap HRMS. An interaction network of "compound-target-disease" was constructed based on the compounds confirmed in blood and on their corresponding targets of allergic asthma acquired from disease gene databases, predicting the possible biological targets and potential signal pathways of GPH with the network pharmacology analysis. Then, a molecular docking between the blood ingredients and the core targets was carried out using the Autodock Vina software. Subsequently, after establishing a mouse model with allergic asthma induced by ovalbumin (OVA), the effect of GPH on allergic asthma was evaluated by analyzing a series of indicators including behavior, lung pathological changes, inflammatory factors in serum and bronchoalveolar lavage fluid (BALF). Finally, the key pathway and targets predicted by network pharmacology and molecular docking were further verified using Western blot analysis. RESULTS Eleven chemical constituents (such as arbutin, neochlorogenic acid, chlorogenic acid, etc.) were identified through the analysis of plasma samples, on which basis a total of 142 genes intersecting GPH and allergic asthma were collected by network pharmacology. After performing enrichment analysis of these genes in gene ontology (GO) and kyoto encyclopedia of genes and genomes (KEGG), it was found that arbutin-related targets mainly focused on phosphatidylinositol 3 kinase (PI3K)/protein kinase B (Akt) signal pathway, while luteolin and marmesin -related targets tended to locate at Interleukin-17 (IL-17) signal pathway. Meanwhile, the findings of molecular docking suggested that such components as arbutin, luteolin and marmesin entering into blood had good binding with the core targets related to PI3K/Akt and IL-17 pathways. In addition, GPH improved the OVA-induced asthma symptoms, the alveolar septa thickening and the infiltration of inflammatory cell around bronchi and bronchioles as well as reduced the levels of IgE, IL-8 and TNF-α in serum or BALF. Furthermore, GPH could inhibit the phosphorylation level of Akt and the expression of PI3K, an efficacy supported by the findings by way of Western blot which suggests that GPH in the treatment of allergic asthma was linked to PI3K/Akt signal pathway. CONCLUSION In this study, a comprehensive strategy to combine the UPLC-Q-Orbitrap HRMS with network pharmacology was employed to clarify the mechanism of GPH against allergic asthma, a finding where GPH may inhibit PI3K/Akt signal pathway to protect mice from OVA-induced allergic asthma. This study provides a deeper understanding of the pharmacological mechanism of GPH in treatment of asthma, offering a scientific reference for further research and clinical application of GPH in terms of allergic asthma.
Collapse
Affiliation(s)
- Kun Zhou
- State Key Laboratory of Functions and Applications of Medicinal Plants, Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang, 550004, China; School of Pharmacy, Guizhou Medical University, Guiyang, 550025, China
| | - Dingyan Lu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang, 550004, China
| | - Jingrui You
- State Key Laboratory of Functions and Applications of Medicinal Plants, Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang, 550004, China; School of Pharmacy, Guizhou Medical University, Guiyang, 550025, China
| | - Ting Liu
- Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, 550004, China
| | - Jia Sun
- Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, 550004, China
| | - Yuan Lu
- Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, 550004, China
| | - Jie Pan
- State Key Laboratory of Functions and Applications of Medicinal Plants, Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang, 550004, China
| | - Yongjun Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang, 550004, China.
| | - Chunhua Liu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang, 550004, China.
| |
Collapse
|
4
|
van Eekeren LE, Matzaraki V, Zhang Z, van de Wijer L, Blaauw MJT, de Jonge MI, Vandekerckhove L, Trypsteen W, Joosten LAB, Netea MG, de Mast Q, Koenen HJPM, Li Y, van der Ven AJAM. People with HIV have higher percentages of circulating CCR5+ CD8+ T cells and lower percentages of CCR5+ regulatory T cells. Sci Rep 2022; 12:11425. [PMID: 35794176 PMCID: PMC9259737 DOI: 10.1038/s41598-022-15646-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 06/27/2022] [Indexed: 11/14/2022] Open
Abstract
CCR5 is the main HIV co-receptor. We aimed to (1) compare CCR5 expression on immune cells between people living with HIV (PLHIV) using combination antiretroviral therapy (cART) and HIV-uninfected controls, (2) relate CCR5 expression to viral reservoir size and (3) assess determinants of CCR5 expression. This cross-sectional study included 209 PLHIV and 323 controls. Percentages of CCR5+ cells (%) and CCR5 mean fluorescence intensity assessed by flow cytometry in monocytes and lymphocyte subsets were correlated to host factors, HIV-1 cell-associated (CA)-RNA and CA-DNA, plasma inflammation markers and metabolites. Metabolic pathways were identified. PLHIV displayed higher percentages of CCR5+ monocytes and several CD8+ T cell subsets, but lower percentages of CCR5+ naive CD4+ T cells and regulatory T cells (Tregs). HIV-1 CA-DNA and CA-RNA correlated positively with percentages of CCR5+ lymphocytes. Metabolome analysis revealed three pathways involved in energy metabolism associated with percentage of CCR5+ CD8+ T cells in PLHIV. Our results indicate that CCR5 is differently expressed on various circulating immune cells in PLHIV. Hence, cell-trafficking of CD8+ T cells and Tregs may be altered in PLHIV. Associations between energy pathways and percentage of CCR5+ CD8+ T cells in PLHIV suggest higher energy demand of these cells in PLHIV.
Collapse
Affiliation(s)
- Louise E van Eekeren
- Department of General Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands. .,Radboudumc Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands. .,Radboud Institute of Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands.
| | - Vasiliki Matzaraki
- Department of General Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands.,Radboudumc Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Zhenhua Zhang
- Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Lisa van de Wijer
- Department of General Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands.,Radboudumc Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands.,Radboud Institute of Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Marc J T Blaauw
- Department of General Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands.,Radboudumc Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands.,Radboud Institute of Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Marien I de Jonge
- Department of Laboratory Medicine, Radboud University Medical Center, Nijmegen, The Netherlands.,Radboudumc Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands.,Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Linos Vandekerckhove
- HIV Cure Research Center, Department of Internal Medicine, and Pediatrics, Ghent University & Ghent University Hospital, Ghent, Belgium
| | - Wim Trypsteen
- HIV Cure Research Center, Department of Internal Medicine, and Pediatrics, Ghent University & Ghent University Hospital, Ghent, Belgium
| | - Leo A B Joosten
- Department of General Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands.,Radboudumc Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands.,Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Mihai G Netea
- Department of General Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands.,Radboudumc Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands.,Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Quirijn de Mast
- Department of General Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands.,Radboudumc Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands.,Radboud Institute of Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Hans J P M Koenen
- Department of Laboratory Medicine, Radboud University Medical Center, Nijmegen, The Netherlands.,Radboudumc Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Yang Li
- Department of General Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands.,Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands.,Department of Computational Biology for Individualised Medicine, Centre for Individualised Infection Medicine (CiiM) & TWINCORE, Joint Ventures Between the Helmholtz-Centre for Infection Research (HZI) and the Hannover Medical School (MHH), Hannover, Germany
| | - André J A M van der Ven
- Department of General Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands.,Radboudumc Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands.,Radboud Institute of Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| |
Collapse
|
5
|
Pinzone MR, Weissman S, Pasternak AO, Zurakowski R, Migueles S, O'Doherty U. Naive infection predicts reservoir diversity and is a formidable hurdle to HIV eradication. JCI Insight 2021; 6:e150794. [PMID: 34228640 PMCID: PMC8409977 DOI: 10.1172/jci.insight.150794] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 06/30/2021] [Indexed: 12/16/2022] Open
Abstract
Historically, naive cells have been considered inconsequential to HIV persistence. Here, we compared the contributions of naive and memory cells to the reservoirs of individuals with a spectrum of reservoir sizes and variable immunological control. We performed proviral sequencing of approximately 6000 proviruses from cellular subsets of 5 elite controllers (ECs) off antiretroviral therapy (ART) and 5 chronic progressors (CPs) on ART. The levels of naive infection were barely detectable in ECs and approximately 300-fold lower compared with those in CPs. Moreover, the ratio of infected naive to memory cells was significantly lower in ECs. Overall, the naive infection level increased as reservoir size increased, such that naive cells were a major contributor to the intact reservoir of CPs, whose reservoirs were generally very diverse. In contrast, the reservoirs of ECs were dominated by proviral clones. Critically, the fraction of proviral clones increased with cell differentiation, with naive infection predicting reservoir diversity. Longitudinal sequencing revealed that the reservoir of ECs was less dynamic compared with that of CPs. Naive cells play a critical role in HIV persistence. Their infection level predicts reservoir size and diversity. Moreover, the diminishing diversity of the reservoir as cellular subsets mature suggests that naive T cells repopulate the memory compartment and that direct infection of naive T cells occurs in vivo.
Collapse
Affiliation(s)
- Marilia R Pinzone
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Sam Weissman
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Alexander O Pasternak
- Department of Medical Microbiology, Amsterdam UMC, University of Amsterdam, Laboratory of Experimental Virology, Amsterdam, Netherlands
| | - Ryan Zurakowski
- Department of Biomedical Engineering, University of Delaware, Newark, Delaware, USA
| | - Stephen Migueles
- HIV-Specific Immunity Section of the Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, Maryland, USA
| | - Una O'Doherty
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| |
Collapse
|