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Rojekar S, Gholap AD, Togre N, Bhoj P, Haeck C, Hatvate N, Singh N, Vitore J, Dhoble S, Kashid S, Patravale V. Current status of mannose receptor-targeted drug delivery for improved anti-HIV therapy. J Control Release 2024; 372:494-521. [PMID: 38849091 DOI: 10.1016/j.jconrel.2024.06.002] [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: 03/12/2024] [Revised: 05/22/2024] [Accepted: 06/01/2024] [Indexed: 06/09/2024]
Abstract
In the pursuit of achieving better therapeutic outcomes in the treatment of HIV, innovative drug delivery strategies have been extensively explored. Mannose receptors, which are primarily found on macrophages and dendritic cells, offer promising targets for drug delivery due to their involvement in HIV pathogenesis. This review article comprehensively evaluates recent drug delivery system advancements targeting the mannose receptor. We have systematically described recent developments in creating and utilizing drug delivery platforms, including nanoparticles, liposomes, micelles, noisomes, dendrimers, and other nanocarrier systems targeted at the mannose receptor. These strategies aim to enhance drug delivery specificity, bioavailability, and therapeutic efficacy while decreasing off-target effects and systemic toxicity. Furthermore, the article delves into how mannose receptors and HIV interact, highlighting the potential for exploiting this interaction to enhance drug delivery to infected cells. The review covers essential topics, such as the rational design of nanocarriers for mannose receptor recognition, the impact of physicochemical properties on drug delivery performance, and how targeted delivery affects the pharmacokinetics and pharmacodynamics of anti-HIV agents. The challenges of these novel strategies, including immunogenicity, stability, and scalability, and future research directions in this rapidly growing area are discussed. The knowledge synthesis presented in this review underscores the potential of mannose receptor-based targeted drug delivery as a promising avenue for advancing HIV treatment. By leveraging the unique properties of mannose receptors, researchers can design drug delivery systems that cater to individual needs, overcome existing limitations, and create more effective and patient-friendly treatments in the ongoing fight against HIV/AIDS.
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Affiliation(s)
- Satish Rojekar
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| | - Amol D Gholap
- Department of Pharmaceutics, St. John Institute of Pharmacy and Research, Palghar 401404, Maharashtra, India
| | - Namdev Togre
- Department of Pathology, Lewis Katz School of Medicine at Temple University, Philadelphia, USA
| | - Priyanka Bhoj
- Department of Pathology, Lewis Katz School of Medicine at Temple University, Philadelphia, USA
| | - Clement Haeck
- Population Council, , Center for Biomedical Research, 1230 York Avenue, New York, NY 10065, USA
| | - Navnath Hatvate
- Institute of Chemical Technology, Mumbai, Marathwada Campus, Jalna 431203, India
| | - Nidhi Singh
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Kolkata 700054, India
| | - Jyotsna Vitore
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), Gujarat 382355, India
| | - Sagar Dhoble
- Department of Pharmacology and Toxicology, R. K. Coit College of Pharmacy, University of Arizona, Tucson, AZ, USA
| | - Snehal Kashid
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research-Ahmedabad (NIPER-A), Gujarat 382355, India
| | - Vandana Patravale
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Mumbai 400019, India.
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Lang S, Fletcher DA, Petit AP, Luise N, Fyfe P, Zuccotto F, Porter D, Hope A, Bellany F, Kerr C, Mackenzie CJ, Wyatt PG, Gray DW. Application of an NMR/Crystallography Fragment Screening Platform for the Assessment and Rapid Discovery of New HIV-CA Binding Fragments. ChemMedChem 2024; 19:e202400025. [PMID: 38581280 DOI: 10.1002/cmdc.202400025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 04/05/2024] [Accepted: 04/05/2024] [Indexed: 04/08/2024]
Abstract
Identification and assessment of novel targets is essential to combat drug resistance in the treatment of HIV/AIDS. HIV Capsid (HIV-CA), the protein playing a major role in both the early and late stages of the viral life cycle, has emerged as an important target. We have applied an NMR fragment screening platform and identified molecules that bind to the N-terminal domain (NTD) of HIV-CA at a site close to the interface with the C-terminal domain (CTD). Using X-ray crystallography, we have been able to obtain crystal structures to identify the binding mode of these compounds. This allowed for rapid progression of the initial, weak binding, fragment starting points to compounds 37 and 38, which have 19F-pKi values of 5.3 and 5.4 respectively.
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Affiliation(s)
- Stuart Lang
- Cresset Discovery, New Cambridge House, Bassingbourn Road, Litlington, Cambridgeshire, SG80SSS
| | - Daniel A Fletcher
- BioAscent Discovery Ltd, Bo'Ness Road, Newhouse, Lanarkshire, ML1 5UH
| | | | - Nicola Luise
- Alira Health, Av. De Josep Tarradellas, 123, 7th Floor, 08029, Barcelona, Spain
| | - Paul Fyfe
- Drug Discovery Unit, University of Dundee, Dow Street, Dundee, DD1 5EH
| | - Fabio Zuccotto
- Vertex Pharmaceuticals (Europe) Ltd, 86-88, Jubilee Avenue, Milton Park, Abingdon, Oxfordshire, OX14 4RW
| | - David Porter
- Evotec (UK) Ltd, Dorothy Crowfoot Hodgkin Campus, 114 Innovation Drive, Milton Park, Abingdon, Oxfordshire, OX14 4RZ
| | - Anthony Hope
- Drug Discovery Unit, University of Dundee, Dow Street, Dundee, DD1 5EH
| | - Fiona Bellany
- Drug Discovery Unit, University of Dundee, Dow Street, Dundee, DD1 5EH
| | - Catrina Kerr
- Drug Discovery Unit, University of Dundee, Dow Street, Dundee, DD1 5EH
| | | | - Paul G Wyatt
- Sitala Bio Ltd, Unit D6, Grain House Mill Court, Great Shelford, Cambridge, CB22 5LD
| | - David W Gray
- Drug Discovery Unit, University of Dundee, Dow Street, Dundee, DD1 5EH
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3
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Sibeko S, Sanderson M, Moyo S, Botha MH. Role of the epithelium in human papillomavirus and human immunodeficiency virus infections in the female genital tract. FRONTIERS IN REPRODUCTIVE HEALTH 2024; 6:1408198. [PMID: 38764554 PMCID: PMC11100325 DOI: 10.3389/frph.2024.1408198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Accepted: 04/17/2024] [Indexed: 05/21/2024] Open
Abstract
Background Two-thirds of people living with human immunodeficiency virus type 1 (HIV-1) infection reside in Sub-Saharan Africa, where there are the highest prevalence and incidence rates of human papillomavirus (HPV) infection. Both infections are sexually transmitted and enter the body via the epithelium. This review describes the extent of involvement of the epithelium in each infection in the female genital tract. Methods A narrative review was conducted on the role of the epithelium in HPV and HIV-1 infections. Results An intact epithelial barrier is the predominant form of protection against viral entry and infection, including from HIV-1 and HPV. HPV is an intraepithelial pathogen, and thus, its growth and amplification, which are dependent on squamous cell differentiation, occur in the epithelium. It gains entry to the basal cells of the stratified squamous epithelium via micro-abrasions or other epithelial injuries that expose the basement membrane. HIV-1, conversely, passes through the epithelium to infect subepithelial tissues. Following deposition of the HIV-1-containing inoculum into the lumen, the virus enters the mucosa through breaks in the epithelial barrier within hours of infection. Further, HIV-1 penetrates the epithelium via various mechanisms, including paracellular passage or across epithelial cells through transcytosis. The capture of the virus from the mucosal surface by intraepithelial and/or subepithelial target cells has also been documented. Conclusions Epithelial disruption is the major pathogenetic pathway in HIV-1 and HPV infections. Therefore, biochemical compounds that strengthen the epithelial barrier must be prioritized to prevent these infections.
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Affiliation(s)
- Sengeziwe Sibeko
- Public Health, Societies and Belonging Division, Human Sciences Research Council, Durban, South Africa
| | - Micheline Sanderson
- Division of Anatomical Pathology, Department of Pathology, Stellenbosch University, Cape Town, South Africa
| | - Sizulu Moyo
- Public Health, Societies and Belonging Division, Human Sciences Research Council, Durban, South Africa
| | - Matthys H. Botha
- Department of Obstetrics and Gynaecology, Stellenbosch University, Cape Town, South Africa
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Vine EE, Austin PJ, O'Neil TR, Nasr N, Bertram KM, Cunningham AL, Harman AN. Epithelial dendritic cells vs. Langerhans cells: Implications for mucosal vaccines. Cell Rep 2024; 43:113977. [PMID: 38512869 DOI: 10.1016/j.celrep.2024.113977] [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: 12/12/2023] [Revised: 02/21/2024] [Accepted: 03/04/2024] [Indexed: 03/23/2024] Open
Abstract
Next-generation vaccines may be delivered via the skin and mucosa. The stratified squamous epithelium (SSE) represents the outermost layer of the skin (epidermis) and type II mucosa (epithelium). Langerhans cells (LCs) have been considered the sole antigen-presenting cells (APCs) to inhabit the SSE; however, it is now clear that dendritic cells (DCs) are also present. Importantly, there are functional differences in how LCs and DCs take up and process pathogens as well as their ability to activate and polarize T cells, though whether DCs participate in neuroimmune interactions like LCs is yet to be elucidated. A correct definition and functional characterization of APCs in the skin and anogenital tissues are of utmost importance for the design of better vaccines and blocking pathogen transmission. Here, we provide a historical perspective on the evolution of our understanding of the APCs that inhabit the SSE, including a detailed review of the most recent literature.
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Affiliation(s)
- Erica Elizabeth Vine
- Centre for Virus Research, The Westmead Institute for Medical Research, Westmead, NSW 2145, Australia; Westmead Clinic School, Faculty of Medicine and Health, The University of Sydney, Westmead, NSW 2145, Australia
| | - Paul Jonathon Austin
- Centre for Virus Research, The Westmead Institute for Medical Research, Westmead, NSW 2145, Australia; School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Westmead, NSW 2145, Australia; Brain and Mind Centre, University of Sydney, Camperdown, NSW 2050, Australia
| | - Thomas Ray O'Neil
- Centre for Virus Research, The Westmead Institute for Medical Research, Westmead, NSW 2145, Australia; School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Westmead, NSW 2145, Australia
| | - Najla Nasr
- Centre for Virus Research, The Westmead Institute for Medical Research, Westmead, NSW 2145, Australia; School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Westmead, NSW 2145, Australia
| | - Kirstie Melissa Bertram
- Centre for Virus Research, The Westmead Institute for Medical Research, Westmead, NSW 2145, Australia; School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Westmead, NSW 2145, Australia
| | - Anthony Lawrence Cunningham
- Centre for Virus Research, The Westmead Institute for Medical Research, Westmead, NSW 2145, Australia; School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Westmead, NSW 2145, Australia
| | - Andrew Nicholas Harman
- Centre for Virus Research, The Westmead Institute for Medical Research, Westmead, NSW 2145, Australia; School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Westmead, NSW 2145, Australia.
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Groß R, Reßin H, von Maltitz P, Albers D, Schneider L, Bley H, Hoffmann M, Cortese M, Gupta D, Deniz M, Choi JY, Jansen J, Preußer C, Seehafer K, Pöhlmann S, Voelker DR, Goffinet C, Pogge-von Strandmann E, Bunz U, Bartenschlager R, El Andaloussi S, Sparrer KMJ, Herker E, Becker S, Kirchhoff F, Münch J, Müller JA. Phosphatidylserine-exposing extracellular vesicles in body fluids are an innate defence against apoptotic mimicry viral pathogens. Nat Microbiol 2024; 9:905-921. [PMID: 38528146 PMCID: PMC10994849 DOI: 10.1038/s41564-024-01637-6] [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: 03/16/2023] [Accepted: 02/14/2024] [Indexed: 03/27/2024]
Abstract
Some viruses are rarely transmitted orally or sexually despite their presence in saliva, breast milk, or semen. We previously identified that extracellular vesicles (EVs) in semen and saliva inhibit Zika virus infection. However, the antiviral spectrum and underlying mechanism remained unclear. Here we applied lipidomics and flow cytometry to show that these EVs expose phosphatidylserine (PS). By blocking PS receptors, targeted by Zika virus in the process of apoptotic mimicry, they interfere with viral attachment and entry. Consequently, physiological concentrations of EVs applied in vitro efficiently inhibited infection by apoptotic mimicry dengue, West Nile, Chikungunya, Ebola and vesicular stomatitis viruses, but not severe acute respiratory syndrome coronavirus 2, human immunodeficiency virus 1, hepatitis C virus and herpesviruses that use other entry receptors. Our results identify the role of PS-rich EVs in body fluids in innate defence against infection via viral apoptotic mimicries, explaining why these viruses are primarily transmitted via PS-EV-deficient blood or blood-ingesting arthropods rather than direct human-to-human contact.
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Affiliation(s)
- Rüdiger Groß
- Institute of Molecular Virology, Ulm University Medical Center, Ulm, Germany
| | - Hanna Reßin
- Institute of Molecular Virology, Ulm University Medical Center, Ulm, Germany
| | - Pascal von Maltitz
- Institute of Molecular Virology, Ulm University Medical Center, Ulm, Germany
| | - Dan Albers
- Institute of Molecular Virology, Ulm University Medical Center, Ulm, Germany
| | - Laura Schneider
- Institute of Virology, Philipps University Marburg, Marburg, Germany
| | - Hanna Bley
- Institute of Virology, Philipps University Marburg, Marburg, Germany
| | - Markus Hoffmann
- Infection Biology Unit, German Primate Center, Göttingen, Germany
- Georg-August University Göttingen, Göttingen, Germany
| | - Mirko Cortese
- Department of Infectious Diseases, Molecular Virology, University of Heidelberg, Heidelberg, Germany
| | - Dhanu Gupta
- Biomolecular Medicine, Clinical Research Center, Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Paediatrics, University of Oxford, Oxford, UK
| | - Miriam Deniz
- Clinic for Gynecology and Obstetrics, Ulm University Medical Center, Ulm, Germany
| | - Jae-Yeon Choi
- Department of Medicine, National Jewish Health, Denver, CO, USA
| | - Jenny Jansen
- Institute of Virology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Christian Preußer
- Core Facility Extracellular Vesicles, Institute for Tumor Immunology, Center for Tumor Biology and Immunology, Philipps University Marburg, Marburg, Germany
| | - Kai Seehafer
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität, Heidelberg, Germany
| | - Stefan Pöhlmann
- Infection Biology Unit, German Primate Center, Göttingen, Germany
- Georg-August University Göttingen, Göttingen, Germany
| | | | - Christine Goffinet
- Institute of Virology, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Department of Tropical Disease Biology, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Elke Pogge-von Strandmann
- Core Facility Extracellular Vesicles, Institute for Tumor Immunology, Center for Tumor Biology and Immunology, Philipps University Marburg, Marburg, Germany
| | - Uwe Bunz
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität, Heidelberg, Germany
| | - Ralf Bartenschlager
- Department of Infectious Diseases, Molecular Virology, University of Heidelberg, Heidelberg, Germany
| | - Samir El Andaloussi
- Biomolecular Medicine, Clinical Research Center, Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| | | | - Eva Herker
- Institute of Virology, Philipps University Marburg, Marburg, Germany
| | - Stephan Becker
- Institute of Virology, Philipps University Marburg, Marburg, Germany
| | - Frank Kirchhoff
- Institute of Molecular Virology, Ulm University Medical Center, Ulm, Germany
| | - Jan Münch
- Institute of Molecular Virology, Ulm University Medical Center, Ulm, Germany
| | - Janis A Müller
- Institute of Molecular Virology, Ulm University Medical Center, Ulm, Germany.
- Institute of Virology, Philipps University Marburg, Marburg, Germany.
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Ogbodo JC, Ogbuabor JE, Omenazu C, Eyimoga A, David AO. Effect of HIV/AIDS on labour productivity and the moderating role of literacy rate: A panel study of Africa and its sub-regions. Int J Health Plann Manage 2024. [PMID: 38450822 DOI: 10.1002/hpm.3796] [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: 06/01/2022] [Revised: 12/30/2022] [Accepted: 02/15/2024] [Indexed: 03/08/2024] Open
Abstract
This study examined the effect of human immunodeficiency virus (HIV)/acquired immunodeficiency syndrome (AIDS) on labour productivity in Africa and its sub-regions while controlling for the moderating effect of literacy rate. The study used the system Generalised Method of Moment estimation technique and annual panel data from 2010 to 2020 for 53 African economies. Labour productivity and literacy rate were measured by the ratio of gross domestic product to total employment and gross secondary school enrolment respectively. The results indicate that HIV/AIDS retards labour productivity, and that literacy rate can ease this depressing effect of HIV/AIDS in Africa. The sub-regional differences in Africa obtained in this study revealed that the depressing effect of HIV/AIDS on labour productivity is highest in Southern Africa and lowest in Northern and Central Africa. Interestingly, the study also established that per capita health expenditure, per capita income, gross capital formation, and information and communications technology are important drivers of labour productivity in Africa. The study, therefore, concludes that there is need for governments and other stakeholders to help to increase school enrolment and improve the quality of the content of education curriculum in Africa to increase the awareness of HIV/AIDS, especially as it relates to its channels of transmission like unprofessional blood transfusion, unprotected sexual activity, and genital mutilation, among others.
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Affiliation(s)
- Joel C Ogbodo
- Department of Economics, University of Nigeria, Nsukka, Nigeria
| | | | | | - Anthony Eyimoga
- Department of Economics, University of Nigeria, Nsukka, Nigeria
| | - Adeleye Olaide David
- Department of Business Education (Accounting), University of Nigeria, Nsukka, Nigeria
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Patra S, Pareek D, Gupta PS, Wasnik K, Singh G, Yadav DD, Mastai Y, Paik P. Progress in Treatment and Diagnostics of Infectious Disease with Polymers. ACS Infect Dis 2024; 10:287-316. [PMID: 38237146 DOI: 10.1021/acsinfecdis.3c00528] [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: 02/10/2024]
Abstract
In this era of advanced technology and innovation, infectious diseases still cause significant morbidity and mortality, which need to be addressed. Despite overwhelming success in the development of vaccines, transmittable diseases such as tuberculosis and AIDS remain unprotected, and the treatment is challenging due to frequent mutations of the pathogens. Formulations of new or existing drugs with polymeric materials have been explored as a promising new approach. Variations in shape, size, surface charge, internal morphology, and functionalization position polymer particles as a revolutionary material in healthcare. Here, an overview is provided of major diseases along with statistics on infection and death rates, focusing on polymer-based treatments and modes of action. Key issues are discussed in this review pertaining to current challenges and future perspectives.
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Affiliation(s)
- Sukanya Patra
- School of Biomedical Engineering, Indian Institute of Technology-BHU, Varanasi 221005, India
| | - Divya Pareek
- School of Biomedical Engineering, Indian Institute of Technology-BHU, Varanasi 221005, India
| | - Prem Shankar Gupta
- School of Biomedical Engineering, Indian Institute of Technology-BHU, Varanasi 221005, India
| | - Kirti Wasnik
- School of Biomedical Engineering, Indian Institute of Technology-BHU, Varanasi 221005, India
| | - Gurmeet Singh
- School of Biomedical Engineering, Indian Institute of Technology-BHU, Varanasi 221005, India
| | - Desh Deepak Yadav
- School of Biomedical Engineering, Indian Institute of Technology-BHU, Varanasi 221005, India
| | - Yitzhak Mastai
- Department of Chemistry, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Pradip Paik
- School of Biomedical Engineering, Indian Institute of Technology-BHU, Varanasi 221005, India
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David M, Singh S, Naicker T. Is the central complement component C3 altered in the synergy of HIV infection and preeclampsia? Eur J Obstet Gynecol Reprod Biol X 2023; 20:100257. [PMID: 37885814 PMCID: PMC10598405 DOI: 10.1016/j.eurox.2023.100257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 09/26/2023] [Accepted: 10/17/2023] [Indexed: 10/28/2023] Open
Abstract
Objective In light of complement activation in preeclampsia and HIV infection, this study evaluates the concentration of complement component 3 (C3) in HIV-associated preeclampsia. Method The study population (n = 76) was equally stratified by pregnancy type (normotensive pregnant and preeclampsia) and by HIV status (HIV positive and HIV negative). The plasma concentration of C3 was determined using a Bioplex immunoassay procedure. Results We report a significant increase in C3 concentration in the HIV-negative versus the HIV-positive groups (p < 0.05), regardless of pregnancy type. However, based on pregnancy type and irrespective of HIV status, C3 concentration was similar between normotensive versus preeclampsia. Concentration of C3 was significantly increased in the HIV-positive preeclamptic compared HIV-negative preeclamptic groups (p = 0.04). The correlation of C3 with all study groups was non-significant. Conclusion This study demonstrates that C3 was upregulated in HIV-associated PE compared to HIV- associated normotensive pregnancies. The dysregulation of C3 expression by HIV infection may be attributed to antiretroviral therapy.
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Affiliation(s)
- Mikyle David
- Optics and Imaging Centre, Doris Duke Medical Research Institute, Nelson R. Mandela School of Medicine, College of Health Sciences, University of KwaZulu-Natal, Durban, KwaZulu-Natal, South Africa
| | - Shoohana Singh
- Optics and Imaging Centre, Doris Duke Medical Research Institute, Nelson R. Mandela School of Medicine, College of Health Sciences, University of KwaZulu-Natal, Durban, KwaZulu-Natal, South Africa
| | - Thajasvarie Naicker
- Optics and Imaging Centre, Doris Duke Medical Research Institute, Nelson R. Mandela School of Medicine, College of Health Sciences, University of KwaZulu-Natal, Durban, KwaZulu-Natal, South Africa
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9
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Davis-Ewart L, Grov C, Verhagen R, Manuel J, Viamonte M, Dilworth S, O'Dell N, Valentin O, Carr S, Cherenack E, Henderson C, Doblecki-Lewis S, Nahum-Shani I, Carrico AW. Motivational Enhancement Interventions to Increase Pre-Exposure Prophylaxis Use in Sexual Minority Men Who Use Stimulants: Protocol for a Pilot Sequential Multiple Assignment Randomized Trial. JMIR Res Protoc 2023; 12:e48459. [PMID: 37831485 PMCID: PMC10612012 DOI: 10.2196/48459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 07/27/2023] [Accepted: 08/15/2023] [Indexed: 10/14/2023] Open
Abstract
BACKGROUND Although pre-exposure prophylaxis (PrEP) could substantially mitigate HIV risk, sexual minority men who use stimulants commonly experience difficulties with engaging in PrEP clinical services. Motivational interviewing (MI) and contingency management (CM) reduce substance use and condomless anal sex (CAS) in this population, but these motivational enhancement interventions require modifications to promote engagement along the PrEP care continuum. OBJECTIVE PrEP Readiness Interventions for Supporting Motivation (PRISM) is a pilot sequential multiple assignment randomized trial testing the feasibility, acceptability, and preliminary effectiveness of distinct combinations of telehealth MI and CM in 70 cisgender sexual minority men who use stimulants that are not currently taking PrEP. METHODS A national sample was recruited via social networking applications to complete a baseline assessment and mail-in HIV testing. Those with nonreactive HIV results were randomized to receive either (1) a 2-session MI intervention focusing on PrEP use (session 1) and concomitant stimulant use or CAS (session 2) or (2) a CM intervention with financial incentives for documented evidence of PrEP clinical evaluation by a medical provider (US $50) and filling a PrEP prescription (US $50). At the 3-month follow-up assessment, participants who reported they had not filled a prescription for PrEP were randomized a second time to either (1) switch to a second-stage intervention (ie, MI+CM or CM+MI) or (2) continue with assessments only. Outcomes for both responders and nonresponders were reassessed at a 6-month follow-up. The primary outcome is documented evidence of filling a PrEP prescription over 6 months. Self-reported secondary outcomes include PrEP clinical evaluation by a medical provider, stimulant use, and CAS. Qualitative exit interviews were conducted with a subgroup of responders and nonresponders to characterize their experiences with the MI and CM interventions. RESULTS Implementation of PRISM underscores challenges in reaching sexual minority men who use stimulants to optimize HIV prevention efforts. Approximately 1 in 10 (104/1060) eligible participants have enrolled. Of the 104 who enrolled, 87 (84%) completed mail-in HIV testing. We delivered 5 preliminary HIV-positive results, including posttest counseling with referrals to confirmatory testing. CONCLUSIONS Lessons learned from PRISM underscore the central importance of a flexible, participant-centered approach to support the engagement of sexual minority men who use stimulants. Leveraging telehealth platforms to deliver motivational enhancement interventions also expanded their reach and potential public health impact with this high-priority population. Further research is needed to determine the effectiveness of telehealth MI and CM for supporting PrEP use in sexual minority men who use stimulants. TRIAL REGISTRATION ClinicalTrials.gov NCT04205487; https://clinicaltrials.gov/study/NCT04205487. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) DERR1-10.2196/48459.
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Affiliation(s)
- Leah Davis-Ewart
- Health Promotion and Disease Prevention, Robert Stempel College of Public Health and Social Work, Florida International University, Miami, FL, United States
| | - Christian Grov
- Graduate School of Public Health and Health Policy, City University of New York, New York, NY, United States
| | - Rachel Verhagen
- Department of Psychology, College of Arts and Science, University of Miami, Miami, FL, United States
| | - Jennifer Manuel
- School of Medicine, University of California, San Francisco, San Francisco, CA, United States
| | - Michael Viamonte
- Miller School of Medicine, University of Miami, Miami, FL, United States
| | - Samantha Dilworth
- Miller School of Medicine, University of Miami, Miami, FL, United States
| | - Nicole O'Dell
- Miller School of Medicine, University of Miami, Miami, FL, United States
| | - Omar Valentin
- Health Promotion and Disease Prevention, Robert Stempel College of Public Health and Social Work, Florida International University, Miami, FL, United States
| | - Sidney Carr
- Miller School of Medicine, University of Miami, Miami, FL, United States
| | - Emily Cherenack
- Miller School of Medicine, University of Miami, Miami, FL, United States
| | - Chelsea Henderson
- Miller School of Medicine, University of Miami, Miami, FL, United States
| | | | - Inbal Nahum-Shani
- Institute for Social Research, University of Michigan, Ann Arbor, MI, United States
| | - Adam W Carrico
- Health Promotion and Disease Prevention, Robert Stempel College of Public Health and Social Work, Florida International University, Miami, FL, United States
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10
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Alvarez C, Félix C, Lemos MFL. The Antiviral Potential of Algal Lectins. Mar Drugs 2023; 21:515. [PMID: 37888450 PMCID: PMC10608189 DOI: 10.3390/md21100515] [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: 07/18/2023] [Revised: 09/22/2023] [Accepted: 09/26/2023] [Indexed: 10/28/2023] Open
Abstract
Algae have emerged as fascinating subjects of study due to their vast potential as sources of valuable metabolites with diverse biotechnological applications, including their use as fertilizers, feed, food, and even pharmaceutical precursors. Among the numerous compounds found in algae, lectins have garnered special attention for their unique structures and carbohydrate specificities, distinguishing them from lectins derived from other sources. Here, a comprehensive overview of the latest scientific and technological advancements in the realm of algal lectins with a particular focus on their antiviral properties is provided. These lectins have displayed remarkable effectiveness against a wide range of viruses, thereby holding great promise for various antiviral applications. It is worth noting that several alga species have already been successfully commercialized for their antiviral potential. However, the discovery of a diverse array of lectins with potent antiviral capabilities suggests that the field holds immense untapped potential for further expansion. In conclusion, algae stand as a valuable and versatile resource, and their lectins offer an exciting avenue for developing novel antiviral agents, which may lead to the development of cutting-edge antiviral therapies.
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Affiliation(s)
| | | | - Marco F. L. Lemos
- MARE-Marine and Environmental Sciences Centre & ARNET—Aquatic Research Infrastructure Network Associated Laboratory, ESTM, Polytechnic of Leiria, 2520-641 Peniche, Portugal; (C.A.); (C.F.)
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11
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Bekker LG, Beyrer C, Mgodi N, Lewin SR, Delany-Moretlwe S, Taiwo B, Masters MC, Lazarus JV. HIV infection. Nat Rev Dis Primers 2023; 9:42. [PMID: 37591865 DOI: 10.1038/s41572-023-00452-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/04/2023] [Indexed: 08/19/2023]
Abstract
The AIDS epidemic has been a global public health issue for more than 40 years and has resulted in ~40 million deaths. AIDS is caused by the retrovirus, HIV-1, which is transmitted via body fluids and secretions. After infection, the virus invades host cells by attaching to CD4 receptors and thereafter one of two major chemokine coreceptors, CCR5 or CXCR4, destroying the host cell, most often a T lymphocyte, as it replicates. If unchecked this can lead to an immune-deficient state and demise over a period of ~2-10 years. The discovery and global roll-out of rapid diagnostics and effective antiretroviral therapy led to a large reduction in mortality and morbidity and to an expanding group of individuals requiring lifelong viral suppressive therapy. Viral suppression eliminates sexual transmission of the virus and greatly improves health outcomes. HIV infection, although still stigmatized, is now a chronic and manageable condition. Ultimate epidemic control will require prevention and treatment to be made available, affordable and accessible for all. Furthermore, the focus should be heavily oriented towards long-term well-being, care for multimorbidity and good quality of life. Intense research efforts continue for therapeutic and/or preventive vaccines, novel immunotherapies and a cure.
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Affiliation(s)
- Linda-Gail Bekker
- The Desmond Tutu HIV Centre, University of Cape Town, RSA, Cape Town, South Africa.
| | - Chris Beyrer
- Duke Global Health Institute, Duke University, Durham, NC, USA
| | - Nyaradzo Mgodi
- University of Zimbabwe Clinical Trials Research Centre, Harare, Zimbabwe
| | - Sharon R Lewin
- Department of Infectious Diseases, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- Victorian Infectious Diseases Service, The Royal Melbourne Hospital at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- Department of Infectious Diseases, The Alfred Hospital and Monash University, Melbourne, Victoria, Australia
| | | | - Babafemi Taiwo
- Division of Infectious Diseases, Northwestern University, Chicago, IL, USA
| | - Mary Clare Masters
- Division of Infectious Diseases, Northwestern University, Chicago, IL, USA
| | - Jeffrey V Lazarus
- CUNY Graduate School of Public Health and Health Policy, New York, NY, USA
- Barcelona Institute for Global Health (ISGlobal), Hospital Clínic, University of Barcelona, Barcelona, Spain
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12
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Smith MS, South SC. Risky Sexual Behaviors as a Transaction of Individual Differences and Situational Context. ARCHIVES OF SEXUAL BEHAVIOR 2023; 52:2539-2560. [PMID: 37103633 DOI: 10.1007/s10508-023-02592-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 02/21/2023] [Accepted: 03/19/2023] [Indexed: 06/19/2023]
Abstract
Risky sexual behaviors (RSBs) incur large societal and personal costs. Despite widespread prevention efforts, RSBs and associated consequences (e.g., sexually transmitted infections) continue to rise. A proliferation of research has emerged on situational (e.g., alcohol use) and individual difference (e.g., impulsivity) factors to explain this rise, but these approaches assume an unrealistically static mechanism underlying RSB. Because this prior research has resulted in few compelling effects, we sought to innovate by examining the interaction of situation and individual differences in explaining RSBs. A large sample (N = 105) completed baseline reports of psychopathology and 30 daily diary reports of RSBs and associated contexts. These data were submitted to multilevel models including cross-level interactions to test a person-by-situation conceptualization of RSBs. Results suggested that RSBs are most strongly predicted from interactions of person- and situation-level factors in both protective and facilitative directions. These interactions outnumbered main effects and commonly included partner commitment as a central mechanism. These results point to theoretical and clinical gaps in preventing RSB and urge a departure from prior ways of conceptualizing sexual risk as a static outcome.
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Affiliation(s)
- Madison Shea Smith
- Department of Psychological Sciences, Purdue University, 703 3rd Street, West Lafayette, IN, USA.
| | - Susan C South
- Department of Psychological Sciences, Purdue University, 703 3rd Street, West Lafayette, IN, USA
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13
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Abdi M, Ahmadi A, Mokarizadeh A. Biomarkers for Assessment of Human Immunodeficiency Virus and its Co-Infection with Hepatitis B and Hepatitis C Viruses: A Comprehensive Review. IRANIAN JOURNAL OF PATHOLOGY 2023; 18:230-243. [PMID: 37942194 PMCID: PMC10628369 DOI: 10.30699/ijp.2023.1972384.3009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 04/06/2023] [Indexed: 11/10/2023]
Abstract
Recently, prevalence of hepatitis B virus (HBV), and hepatitis C virus (HCV) co-infection with Human immunodeficiency virus (HIV), has dramatically increased worldwide due to their shared routes of transmission. Compared to the sporadic infection with HIV, HBV, and HCV, concurrent infection with these agents increases the complications of these viruses. Furthermore, co-infection may also alter the therapeutic strategies against HIV. Accordingly, choosing appropriate biomarkers to detect these co-infections is one of the main concerns in the field of diagnostic pathology. Up to now, several markers have been introduced for the simultaneous diagnosis of HIV, HBV, and HCV. In this regard, serum adenosine deaminase activity (ADA), FibroTests, AST-to-Platelet Ratio Index (APRI), Fibrosis-4, Hyaluronic acid, and micro ribonucleic acids (MiR) have been investigated as potential biomarkers for diagnosis of HIV-HCV/HBV co-infections. This review summarizes diagnostic values of the current and emerging biomarkers in HIV patients concurrently infected with HBV and HCV.
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Affiliation(s)
- Mohammad Abdi
- Department of Clinical Biochemistry, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Abbas Ahmadi
- Department of Molecular Medicine, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Aram Mokarizadeh
- Biopharmaceutical Research Center, AryoGen Pharmed Inc, Alborz University of Medical Sciences, Karaj, Iran
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14
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Kabaghe AN, Stephens R, Payne D, Theu J, Luhanga M, Chalira D, Arons MM, O'Malley G, Thomson KA, Nyangulu M, Nyirenda R, Patel P, Wadonda-Kabondo N. HIV Recent Infection and Past HIV Testing History Among Newly HIV-Diagnosed 15-24-Year-Olds in Malawi: An Analysis of 2019-2022 HIV Recent Infection Surveillance Data. AIDS EDUCATION AND PREVENTION : OFFICIAL PUBLICATION OF THE INTERNATIONAL SOCIETY FOR AIDS EDUCATION 2023; 35:4-19. [PMID: 37406145 DOI: 10.1521/aeap.2023.35.suppa.4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/07/2023]
Abstract
Awareness of HIV status in Malawi is 88.3% and lowest among 15-24-year-olds (76.2%). There is a need to understand HIV testing history and transmission in this age group. We analyzed pooled HIV surveillance data to describe testing history and HIV recent infection among 8,389 HIV-positive 15-24-year-olds from 251 sites in Malawi between 2019 and 2022. Most HIV-positive 15-24-year-olds were female; aged 23-24 years; rural residents; and diagnosed at voluntary counseling and testing. No prior HIV testing was reported in 43.5% and 32.9% of 15-19-year-olds and males, respectively. Overall, 4.9% of HIV-positive diagnoses were classified as recent HIV infections, with the highest proportions among breastfeeding women (8.2%); persons tested at sexually transmitted infection clinics (9.0%); persons with a prior negative test within 6 months (13.0%); and 17-18-year-olds (7.3%). Tailored and innovative HIV prevention and testing strategies for young adolescents, young males, and pregnant and breastfeeding women are needed for HIV epidemic control.
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Affiliation(s)
| | - Reno Stephens
- U.S. Centers for Disease Control and Prevention, Lilongwe, Malawi
| | - Danielle Payne
- U.S. Centers for Disease Control and Prevention, Lilongwe, Malawi
| | - Joe Theu
- International Training and Education Center for Health (I-TECH), University of Washington, Lilongwe, Malawi
| | - Misheck Luhanga
- U.S. Centers for Disease Control and Prevention, Lilongwe, Malawi
| | - Davie Chalira
- International Training and Education Center for Health (I-TECH), University of Washington, Lilongwe, Malawi
| | - Melissa M Arons
- U.S. Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Gabrielle O'Malley
- International Training and Education Center for Health (I-TECH), University of Washington, Seattle, Washington
| | - Kerry A Thomson
- International Training and Education Center for Health (I-TECH), University of Washington, Seattle, Washington
| | - Mtemwa Nyangulu
- U.S. Centers for Disease Control and Prevention, Lilongwe, Malawi
| | | | - Pragna Patel
- U.S. Centers for Disease Control and Prevention, Atlanta, Georgia
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15
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Dickstein DR, Edwards CR, Lehrer EJ, Tarras ES, Gallitto M, Sfakianos J, Galsky MD, Stock R, Safer JD, Rosser BRS, Marshall DC. Sexual health and treatment-related sexual dysfunction in sexual and gender minorities with prostate cancer. Nat Rev Urol 2023; 20:332-355. [PMID: 37217695 PMCID: PMC10389287 DOI: 10.1038/s41585-023-00778-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/03/2023] [Indexed: 05/24/2023]
Abstract
Prostate cancer treatment has substantial effects on sexual health and function. Sexual function is a vital aspect of human health and a critical component of cancer survivorship, and understanding the potential effects of different treatment modalities on sexual health is crucial. Existing research has extensively described the effects of treatment on male erectile tissues necessary for heterosexual intercourse; however, evidence regarding their effects on sexual health and function in sexual and gender minority populations is minimal. These groups include sexual minority - gay and bisexual - men, and transgender women or trans feminine people in general. Such unique effects in these groups might include altered sexual function in relation to receptive anal and neovaginal intercourse and changes to patients' role-in-sex. Sexual dysfunctions following prostate cancer treatment affecting quality of life in sexual minority men include climacturia, anejaculation, decreased penile length, erectile dysfunction, and problematic receptive anal intercourse, including anodyspareunia and altered pleasurable sensation. Notably, clinical trials investigating sexual outcomes after prostate cancer treatment do not collect sexual orientation and gender identity demographic data or outcomes specific to members of these populations, which perpetuates the uncertainty regarding optimal management. Providing clinicians with a solid evidence base is essential to communicate recommendations and tailor interventions for sexual and gender minority patients with prostate cancer.
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Affiliation(s)
- Daniel R Dickstein
- Department of Radiation Oncology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | - Collin R Edwards
- Department of Radiology, Vagelos College of Physicians and Surgeons of Columbia University, New York, NY, USA
| | - Eric J Lehrer
- Department of Radiation Oncology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Elizabeth S Tarras
- Department of Pulmonology, Critical Care, and Sleep Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Matthew Gallitto
- Department of Radiation Oncology, Vagelos College of Physicians and Surgeons of Columbia University, New York, NY, USA
| | - John Sfakianos
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Matthew D Galsky
- Department of Hematology and Medical Oncology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Richard Stock
- Department of Radiation Oncology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Joshua D Safer
- Center for Transgender Medicine and Surgery, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - B R Simon Rosser
- Division of Epidemiology and Community Health, School of Public Health at University of Minnesota, Minneapolis, MN, USA
| | - Deborah C Marshall
- Department of Radiation Oncology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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16
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Franzén Boger M, Benhach N, Hasselrot T, Brand RM, Rohan LC, Wang L, McGowan I, Edick S, Ho K, Meyn L, Matoba N, Palmer KE, Broliden K, Tjernlund A. A topical rectal douche product containing Q-Griffithsin does not disrupt the epithelial border or alter CD4 + cell distribution in the human rectal mucosa. Sci Rep 2023; 13:7547. [PMID: 37161022 PMCID: PMC10169179 DOI: 10.1038/s41598-023-34107-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 04/24/2023] [Indexed: 05/11/2023] Open
Abstract
To reduce HIV transmission, locally applied pre-exposure prophylaxis (PrEP) products for anorectal use will be important complements to oral and injectable PrEP products already available. It is critical to preserve an intact rectal epithelium and avoid an influx of mucosal HIV target cells with such product use. In this phase 1 clinical trial, we evaluated application of a topical rectal douche product containing Q-Griffithsin (Q-GRFT). Colorectal tissue samples were obtained via sigmoidoscopy at baseline, 1 and 24 h after single-dose exposure in 15 healthy volunteers. In situ staining for epithelial junction markers and CD4+ cells were assessed as an exploratory endpoint. A high-throughput, digitalized in situ imaging analysis workflow was developed to visualize and quantify these HIV susceptibility markers. We observed no significant differences in epithelial distribution of E-cadherin, desmocollin-2, occludin, claudin-1, or zonula occludens-1 when comparing the three timepoints or Q-GRFT versus placebo. There were also no differences in %CD4+ cells within the epithelium or lamina propria in any of these comparisons. In conclusion, the rectal epithelium and CD4+ cell distribution remained unchanged following topical application of Q-GRFT. In situ visualization of HIV susceptibility markers at mucosal sites could be useful to complement standard product safety assessments.
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Affiliation(s)
- Mathias Franzén Boger
- Division of Infectious Diseases, Department of Medicine Solna, Center for Molecular Medicine, Karolinska University Hospital, Karolinska Institutet, Bioclinicum J7:20, 171 64, Solna, Sweden.
| | - Nora Benhach
- Division of Infectious Diseases, Department of Medicine Solna, Center for Molecular Medicine, Karolinska University Hospital, Karolinska Institutet, Bioclinicum J7:20, 171 64, Solna, Sweden
| | - Tyra Hasselrot
- Division of Infectious Diseases, Department of Medicine Solna, Center for Molecular Medicine, Karolinska University Hospital, Karolinska Institutet, Bioclinicum J7:20, 171 64, Solna, Sweden
| | - Rhonda M Brand
- Magee Womens Research Institute, Pittsburgh, PA, USA
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Lisa C Rohan
- Magee Womens Research Institute, Pittsburgh, PA, USA
- Department of Pharmaceutical Sciences, University of Pittsburgh School of Pharmacy, Pittsburgh, PA, USA
| | - Lin Wang
- Magee Womens Research Institute, Pittsburgh, PA, USA
- Department of Pharmaceutical Sciences, University of Pittsburgh School of Pharmacy, Pittsburgh, PA, USA
| | - Ian McGowan
- Magee Womens Research Institute, Pittsburgh, PA, USA
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Orion Biotechnology, Ottawa, Canada
| | - Stacey Edick
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Ken Ho
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Leslie Meyn
- Magee Womens Research Institute, Pittsburgh, PA, USA
| | - Nobuyuki Matoba
- Center for Predictive Medicine for Biodefense and Emerging Infectious Diseases, University of Louisville, Louisville, KY, USA
- UofL Health-Brown Cancer Center, University of Louisville, Louisville, KY, USA
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, Louisville, KY, USA
| | - Kenneth E Palmer
- Center for Predictive Medicine for Biodefense and Emerging Infectious Diseases, University of Louisville, Louisville, KY, USA
- UofL Health-Brown Cancer Center, University of Louisville, Louisville, KY, USA
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, Louisville, KY, USA
| | - Kristina Broliden
- Division of Infectious Diseases, Department of Medicine Solna, Center for Molecular Medicine, Karolinska University Hospital, Karolinska Institutet, Bioclinicum J7:20, 171 64, Solna, Sweden
| | - Annelie Tjernlund
- Division of Infectious Diseases, Department of Medicine Solna, Center for Molecular Medicine, Karolinska University Hospital, Karolinska Institutet, Bioclinicum J7:20, 171 64, Solna, Sweden
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17
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Van Doren VE, Smith SA, Hu YJ, Tharp G, Bosinger S, Ackerley CG, Murray PM, Amara RR, Amancha PK, Arthur RA, Johnston HR, Kelley CF. HIV, asymptomatic STI, and the rectal mucosal immune environment among young men who have sex with men. PLoS Pathog 2023; 19:e1011219. [PMID: 37253061 PMCID: PMC10256205 DOI: 10.1371/journal.ppat.1011219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 06/09/2023] [Accepted: 05/10/2023] [Indexed: 06/01/2023] Open
Abstract
Young men who have sex with men (YMSM) are disproportionately affected by HIV and bacterial sexually transmitted infections (STI) including gonorrhea, chlamydia, and syphilis; yet research into the immunologic effects of these infections is typically pursued in siloes. Here, we employed a syndemic approach to understand potential interactions of these infections on the rectal mucosal immune environment among YMSM. We enrolled YMSM aged 18-29 years with and without HIV and/or asymptomatic bacterial STI and collected blood, rectal secretions, and rectal tissue biopsies. YMSM with HIV were on suppressive antiretroviral therapy (ART) with preserved blood CD4 cell counts. We defined 7 innate and 19 adaptive immune cell subsets by flow cytometry, the rectal mucosal transcriptome by RNAseq, and the rectal mucosal microbiome by 16S rRNA sequencing and examined the effects of HIV and STI and their interactions. We measured tissue HIV RNA viral loads among YMSM with HIV and HIV replication in rectal explant challenge experiments among YMSM without HIV. HIV, but not asymptomatic STI, was associated with profound alterations in the cellular composition of the rectal mucosa. We did not detect a difference in the microbiome composition associated with HIV, but asymptomatic bacterial STI was associated with a higher probability of presence of potentially pathogenic taxa. When examining the rectal mucosal transcriptome, there was evidence of statistical interaction; asymptomatic bacterial STI was associated with upregulation of numerous inflammatory genes and enrichment for immune response pathways among YMSM with HIV, but not YMSM without HIV. Asymptomatic bacterial STI was not associated with differences in tissue HIV RNA viral loads or in HIV replication in explant challenge experiments. Our results suggest that asymptomatic bacterial STI may contribute to inflammation particularly among YMSM with HIV, and that future research should examine potential harms and interventions to reduce the health impact of these syndemic infections.
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Affiliation(s)
- Vanessa E. Van Doren
- The Hope Clinic of the Emory Vaccine Center, Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, United States of America
| | - S. Abigail Smith
- The Hope Clinic of the Emory Vaccine Center, Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, United States of America
| | - Yi-Juan Hu
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
| | - Gregory Tharp
- Emory National Primate Research Center, Emory University, Atlanta, Georgia, United States of America
| | - Steven Bosinger
- Emory National Primate Research Center, Emory University, Atlanta, Georgia, United States of America
- Department of Microbiology and Immunology, Emory University, Atlanta, Georgia, United States of America
| | - Cassie G. Ackerley
- The Hope Clinic of the Emory Vaccine Center, Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, United States of America
| | - Phillip M. Murray
- The Hope Clinic of the Emory Vaccine Center, Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, United States of America
| | - Rama R. Amara
- Emory National Primate Research Center, Emory University, Atlanta, Georgia, United States of America
- Department of Microbiology and Immunology, Emory University, Atlanta, Georgia, United States of America
| | - Praveen K. Amancha
- The Hope Clinic of the Emory Vaccine Center, Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, United States of America
| | - Robert A. Arthur
- Emory Integrated Computational Core, Emory University, Atlanta, Georgia, United States of America
| | - H. Richard Johnston
- Emory Integrated Computational Core, Emory University, Atlanta, Georgia, United States of America
| | - Colleen F. Kelley
- The Hope Clinic of the Emory Vaccine Center, Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, United States of America
- Grady Health System, Atlanta, Georgia, United States of America
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18
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Davis-Ewart L, Grov C, Verhagen R, Manuel J, Viamonte M, Dilworth S, Valentin O, Cherenack EM, Carr S, Doblecki-Lewis S, Nahum-Shani I, Carrico AW. Randomized Controlled Trial of Motivational Enhancement Interventions to Increase Pre-Exposure Prophylaxis Use in Sexual Minority Men Who Use Stimulants. RESEARCH SQUARE 2023:rs.3.rs-2787003. [PMID: 37131755 PMCID: PMC10153377 DOI: 10.21203/rs.3.rs-2787003/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Background Although pre-exposure prophylaxis (PrEP) could substantially mitigate HIV risk, sexual minority men (SMM) who use stimulants commonly experience difficulties with engaging in PrEP clinical services. Motivational interviewing (MI) and contingency management (CM) reduce substance use and condomless anal sex in this population, but these motivational enhancement interventions require adaptation to promote engagement along the PrEP care continuum. Methods PRISM is a pilot sequential multiple assignment randomized trial (SMART) testing the feasibility, acceptability, and preliminary effectiveness of distinct combinations of telehealth MI and CM in 70 cisgender SMM who use stimulants that are not currently taking PrEP. A national sample was recruited via social networking applications to complete a baseline assessment and mail-in HIV testing. Those with non-reactive HIV results are randomized to receive either: 1) a 2-session MI intervention focusing on PrEP use (session 1) and concomitant stimulant use or condomless anal sex (session 2); or 2) a CM intervention with financial incentives for documented evidence of PrEP clinical evaluation by a medical provider ($50) and filling a PrEP prescription ($50). At the 3-month follow-up assessment, participants who report they have not filled a prescription for PrEP are randomized a second time to either: 1) Switch to a second-stage intervention (i.e., MI + CM or CM + MI); or 2) Continue with assessments only. Outcomes for both responders and non-responders are reassessed at a 6-month follow-up. The primary outcome is documented evidence of filling a PrEP prescription. Self-reported, secondary outcomes include PrEP clinical evaluation by a medical provider, stimulant use, and condomless anal sex. Qualitative exit interviews are conducted with a sub-group of responders and non-responders to characterize their experiences with the MI and CM interventions. Discussion Implementation of this pilot SMART underscores the challenges in reaching SMM who use stimulants to optimize HIV prevention efforts such that approximately one in ten (104/1,060) eligible participants enrolled. However, 85% (70/82) of enrolled participants with non-reactive HIV results were randomized. Further research is needed to determine the effectiveness of telehealth MI and CM for supporting PrEP use in SMM who use stimulants. Trial Registration This protocol was registered on clinicaltrials.gov (NCT04205487) on December 19, 2019.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Sidney Carr
- University of Miami Miller School of Medicine
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19
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Armstrong E, Kaul R, Cohen CR. Optimizing the vaginal microbiome as a potential strategy to reduce heterosexual HIV transmission. J Intern Med 2023; 293:433-444. [PMID: 36544257 DOI: 10.1111/joim.13600] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Bacterial vaginosis (BV) is a proinflammatory genital condition characterized by high vaginal bacterial diversity and a paucity of Lactobacillus species. BV has been linked to an elevated risk of HIV acquisition among HIV-negative women and of forward HIV transmission to male sex partners among women living with HIV (adjusted hazard ratios of 1.69 and 3.17, respectively), potentially by eliciting genital inflammation in women with BV and their male sex partners. BV is also highly prevalent among women in sub-Saharan Africa, suggesting that BV treatment may have potential as an HIV prevention strategy. BV is typically treated with antibiotics but recurrence rates are high, possibly because treatment does not directly promote Lactobacillus growth. More recently, BV treatment strategies incorporating live biotherapeutic lactobacilli have led to sustained optimization of the vaginal microbiome and a decrease in inflammatory biomarkers previously associated with HIV susceptibility. Future studies are urgently needed to evaluate BV treatment strategies that can optimize the vaginal microbiome in the long term through colonization with H2 O2 -producing vaginal lactobacilli and to assess whether vaginal microbiota optimization is able to reduce the risk of HIV transmission.
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Affiliation(s)
- Eric Armstrong
- Department of Medicine, University of Toronto, Toronto, Canada
| | - Rupert Kaul
- Department of Medicine, University of Toronto, Toronto, Canada.,Department of Medicine, University Health Network, Toronto, Canada
| | - Craig R Cohen
- Department of Obstetrics, Gynecology & Reproductive Sciences, University of California, San Francisco, San Francisco, USA
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20
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Basar E, Shum B, Skaletz-Rorowski A, Wu Y, Nambiar S, Brockmeyer NH. Cholesterol-conjugated siRNAs silence gene expression in mucosal dendritic cells in cervicovaginal tissue in mice. J Eur Acad Dermatol Venereol 2023; 37:615-626. [PMID: 36331362 DOI: 10.1111/jdv.18718] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 10/06/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND RNA interference (RNAi) provides a powerful way to investigate the role of genes in disease pathogenesis and modulate gene expression to treat disease. In 2018, the FDA approved patisiran, the first RNAi-based drug, hence paving the way for a novel class of RNAi therapeutics. Harnessing RNAi to inhibit vaginal HIV transmission requires effective gene silencing in immune cells, which remains difficult. Knockdown in accessible mucosal tissues may be easier than systemic gene silencing. Vaginally applied cholesterol-conjugated small interfering RNAs (chol-siRNAs) blocked herpes simplex virus transmission in mice without tissue damage or immunostimulation. OBJECTIVES AND METHODS To investigate using flow cytometry, confocal microscopy, and quantitative imaging if chol-siRNAs silence gene expression in vaginal immune cells in mice. RESULTS Although chol-siRNAs and lipoplexed-siRNAs silence gene expression in dendritic cells (DCs) in vitro, most internalized siRNAs concentrate within multivesicular bodies, where they are inaccessible to the cellular RNAi machinery. When applied intravaginally in vivo, chol-siRNAs penetrate the vaginal mucosa, including the lamina propria, and are efficiently internalized by intraepithelial (IE) and lamina propria (LP) DCs, and CD11b+ CD45+ cells, but not by T cells. Chol-siRNAs induce partial gene silencing in IE and LP DCs throughout the genital mucosa in vivo but are inactive in F4/80+ CD11b+ macrophages and T cells. CONCLUSION As mucosal DCs play an essential role for mucosal viral entry and dissemination, chol-siRNAs could be harnessed to target various host factors that are critical for viral uptake, DC migration and trans-infection of virions to T cells, hence allowing the development of a preventive vaginal HIV microbicide. Furthermore, chol-siRNAs could help elucidate the pathways of HIV transmission and understand the immunologic function of DCs in the genital tract.
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Affiliation(s)
- Emre Basar
- Immune Disease Institute and Program in Cellular and Molecular Medicine, Children's Hospital Boston, Harvard Medical School, Boston, Massachusetts, USA.,WIR - Walk In Ruhr, Center for Sexual Health & Medicine, Department of Dermatology, Venerology and Allergology, Ruhr-Universität Bochum, Bochum, Germany.,Competence Network for HIV/AIDS, Ruhr-Universität Bochum, Bochum, Germany
| | - Bennett Shum
- Immune Disease Institute and Program in Cellular and Molecular Medicine, Children's Hospital Boston, Harvard Medical School, Boston, Massachusetts, USA
| | - Adriane Skaletz-Rorowski
- WIR - Walk In Ruhr, Center for Sexual Health & Medicine, Department of Dermatology, Venerology and Allergology, Ruhr-Universität Bochum, Bochum, Germany.,Competence Network for HIV/AIDS, Ruhr-Universität Bochum, Bochum, Germany
| | - Yichao Wu
- Immune Disease Institute and Program in Cellular and Molecular Medicine, Children's Hospital Boston, Harvard Medical School, Boston, Massachusetts, USA
| | - Sandeep Nambiar
- WIR - Walk In Ruhr, Center for Sexual Health & Medicine, Department of Dermatology, Venerology and Allergology, Ruhr-Universität Bochum, Bochum, Germany.,Competence Network for HIV/AIDS, Ruhr-Universität Bochum, Bochum, Germany
| | - Norbert H Brockmeyer
- WIR - Walk In Ruhr, Center for Sexual Health & Medicine, Department of Dermatology, Venerology and Allergology, Ruhr-Universität Bochum, Bochum, Germany.,Competence Network for HIV/AIDS, Ruhr-Universität Bochum, Bochum, Germany
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21
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van Teijlingen NH, Eder J, Sarrami-Forooshani R, Zijlstra-Willems EM, Roovers JPWR, van Leeuwen E, Ribeiro CMS, Geijtenbeek TBH. Immune activation of vaginal human Langerhans cells increases susceptibility to HIV-1 infection. Sci Rep 2023; 13:3283. [PMID: 36841916 PMCID: PMC9968315 DOI: 10.1038/s41598-023-30097-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 02/14/2023] [Indexed: 02/27/2023] Open
Abstract
Vaginal inflammation increases the risk for sexual HIV-1 transmission but underlying mechanisms remain unclear. In this study we assessed the impact of immune activation on HIV-1 susceptibility of primary human vaginal Langerhans cells (LCs). Vaginal LCs isolated from human vaginal tissue expressed a broad range of TLRs and became activated after exposure to both viral and bacterial TLR ligands. HIV-1 replication was restricted in immature vaginal LCs as only low levels of infection could be detected. Notably, activation of immature vaginal LCs by bacterial TLR ligands increased HIV-1 infection, whereas viral TLR ligands were unable to induce HIV-1 replication in vaginal LCs. Furthermore, mature vaginal LCs transmitted HIV-1 to CD4 T cells. This study emphasizes the role for vaginal LCs in protection against mucosal HIV-1 infection, which is abrogated upon activation. Moreover, our data suggest that bacterial STIs can increase the risk of HIV-1 acquisition in women.
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Affiliation(s)
- Nienke H. van Teijlingen
- grid.509540.d0000 0004 6880 3010Amsterdam UMC Location Academic Medical Center, Experimental Immunology, Meibergdreef 9, Amsterdam, The Netherlands
| | - Julia Eder
- grid.509540.d0000 0004 6880 3010Amsterdam UMC Location Academic Medical Center, Experimental Immunology, Meibergdreef 9, Amsterdam, The Netherlands ,Amsterdam Institute for Infection & Immunity, Amsterdam, The Netherlands
| | - Ramin Sarrami-Forooshani
- grid.417689.5ATMP Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, P.O. BOX, Tehran, 15179/64311 Iran
| | - Esther M. Zijlstra-Willems
- grid.509540.d0000 0004 6880 3010Amsterdam UMC Location Academic Medical Center, Experimental Immunology, Meibergdreef 9, Amsterdam, The Netherlands ,Amsterdam Institute for Infection & Immunity, Amsterdam, The Netherlands
| | - Jan-Paul W. R. Roovers
- grid.509540.d0000 0004 6880 3010Amsterdam UMC Location Academic Medical Center, Obstetrics and Gynaecology, Meibergdreef 9, Amsterdam, The Netherlands
| | - Elisabeth van Leeuwen
- grid.509540.d0000 0004 6880 3010Amsterdam UMC Location Academic Medical Center, Obstetrics and Gynaecology, Meibergdreef 9, Amsterdam, The Netherlands
| | - Carla M. S. Ribeiro
- grid.509540.d0000 0004 6880 3010Amsterdam UMC Location Academic Medical Center, Experimental Immunology, Meibergdreef 9, Amsterdam, The Netherlands ,Amsterdam Institute for Infection & Immunity, Amsterdam, The Netherlands
| | - Teunis B. H. Geijtenbeek
- grid.509540.d0000 0004 6880 3010Amsterdam UMC Location Academic Medical Center, Experimental Immunology, Meibergdreef 9, Amsterdam, The Netherlands ,Amsterdam Institute for Infection & Immunity, Amsterdam, The Netherlands
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22
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Maric D, Corbin L, Greco N, Lorenzo-Redondo R, McRaven MD, Veazey RS, Hope TJ. Temporal and spatial characterization of HIV/SIV infection at anorectal mucosa using rhesus macaque rectal challenge model. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.22.529624. [PMID: 36865309 PMCID: PMC9980105 DOI: 10.1101/2023.02.22.529624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
The study described herein is a continuation of our work in which we developed a methodology to identify small foci of transduced cells following rectal challenge of rhesus macaques with a non-replicative luciferase reporter virus. In the current study, the wild-type virus was added to the inoculation mix and twelve rhesus macaques were necropsied 2-4 days after the rectal challenge to study the changes in infected cell phenotype as the infection progressed. Relying on luciferase reporter we noted that both anus and rectum tissues are susceptible to the virus as early as 48h after the challenge. Small regions of the tissue containing luciferase-positive foci were further analyzed microscopically and were found to also contain cells infected by wild-type virus. Phenotypic analysis of the Env and Gag positive cells in these tissues revealed the virus can infect diverse cell populations, including but not limited to Th17 T cells, non Th17 T cells, immature dendritic cells, and myeloid-like cells. The proportions of the infected cell types, however, did not vary much during the first four days of infection when anus and rectum tissues were examined together. Nonetheless, when the same data was analyzed on a tissue-specific basis, we found significant changes in infected cell phenotypes over the course of infection. For anal tissue, a statistically significant increase in infection was observed for Th17 T cells and myeloid-like cells, while in the rectum, the non-Th17 T cells showed the biggest temporal increase, also of statistical significance.
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Affiliation(s)
- Danijela Maric
- Northwestern University Feinberg School of Medicine, Department of Cell and Developmental Biology, Chicago, Illinois, USA
| | - Lisette Corbin
- Northwestern University Feinberg School of Medicine, Department of Cell and Developmental Biology, Chicago, Illinois, USA
- Current affiliation: Emory University School of Medicine, Atlanta, Georgia, USA
| | - Natalie Greco
- Northwestern University Feinberg School of Medicine, Department of Cell and Developmental Biology, Chicago, Illinois, USA
- Current affiliation: Parker Institute for Cancer Immunotherapy, San Francisco, California, USA
| | - Ramon Lorenzo-Redondo
- Northwestern University Feinberg School of Medicine, Department of Medicine, Division of Infectious Diseases, Chicago, Illinois, USA
- Center for Pathogen Genomics and Microbial Evolution, Northwestern University Havey Institute for Global Health, Chicago, Illinois, USA
| | - Michael D. McRaven
- Northwestern University Feinberg School of Medicine, Department of Cell and Developmental Biology, Chicago, Illinois, USA
| | - Ronald S. Veazey
- Tulane National Primate Research Center, Division of Comparative Pathology, Covington, Louisiana, USA
| | - Thomas J. Hope
- Northwestern University Feinberg School of Medicine, Department of Cell and Developmental Biology, Chicago, Illinois, USA
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23
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Islam MR, Nowshin DT, Khan MR, Shahriar M, Bhuiyan MA. Monkeypox and sex: Sexual orientations and encounters are key factors to consider. Health Sci Rep 2023; 6:e1069. [PMID: 36698709 PMCID: PMC9850259 DOI: 10.1002/hsr2.1069] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 12/26/2022] [Accepted: 01/05/2023] [Indexed: 01/21/2023] Open
Abstract
Background and Aims The monkeypox (mpox) virus was endemic to some African countries that have recently spread worldwide creating multicountry outbreaks outside of Africa. This most current mpox outbreak is caused by a variety of factors. However, there are some conflicting ideas and pejorative claims about this. Therefore, we conducted this narrative review to highlight the associations of mpox infection with sexual orientations and encounters and to break the misconception about mpox. Methods To find pertinent information and data, we searched Google, Google Scholar, and PubMed. The results of the study were supported by a large number of studies that demonstrated a connection between the mpox and sexual orientation. To gather information, we read the pertinent articles. Results According to the available documents, we have seen that there are normally two ways of monkeypox transmission. However, the LGBTQ and MSM communities are disproportionately affected by mpox infection. Numerous research have only focused on the sexual orientation of victims. According to a study, there were 54,709 laboratory-confirmed cases of mpox where the majority of these cases were in men who had sex with men and reported recent sexual activity with one or more partners. According to a study from Italy, the mpoxvirus was recently discovered in a sample of human semen from cases of confirmed mpox. However, this finding has not yet been confirmed because there is a chance that the specimen was contaminated by another means. Conclusion The present study suggests that there might have a prominent association between epidemiology of mpox infection and sexual orientations patients. Therefore, the general public should be made aware of mpox infections by healthcare authorities. They should let the people know about the facts about mpox. Only comprehensive planning and preventive measures will be able to halt this epidemic infection's pandemic progression.
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Affiliation(s)
| | | | - Md. Robin Khan
- Department of PharmacyUniversity of Asia PacificDhakaBangladesh
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24
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Ackerley CG, Smith SA, Murray PM, Amancha PK, Arthur RA, Zhu Z, Chahroudi A, Amara RR, Hu YJ, Kelley CF. The rectal mucosal immune environment and HIV susceptibility among young men who have sex with men. Front Immunol 2022; 13:972170. [PMID: 36341414 PMCID: PMC9631201 DOI: 10.3389/fimmu.2022.972170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 09/07/2022] [Indexed: 12/03/2022] Open
Abstract
Young men who have sex with men (YMSM) represent a particularly high-risk group for HIV acquisition in the US, despite similarly reported rates of sexual activity as older, adult MSM (AMSM). Increased rates of HIV infection among YMSM compared to AMSM could be partially attributable to differences within the rectal mucosal (RM) immune environment associated with earlier sexual debut and less lifetime exposure to receptive anal intercourse. Using an ex vivo explant HIV challenge model, we found that rectal tissues from YMSM supported higher levels of p24 at peak viral replication timepoints compared to AMSM. Among YMSM, the RM was characterized by increased CD4+ T cell proliferation, as well as lower frequencies of tissue resident CD8+ T cells and pro-inflammatory cytokine producing CD4+ and CD8+ T cells. In addition, the microbiome composition of YMSM was enriched for anaerobic taxa that have previously been associated with HIV acquisition risk, including Prevotella, Peptostreptococcus, and Peptoniphilus. These distinct immunologic and microbiome characteristics were found to be associated with higher HIV replication following ex vivo challenge of rectal explants, suggesting the RM microenvironment of YMSM may be uniquely conducive to HIV infection.
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Affiliation(s)
- Cassie G. Ackerley
- The Hope Clinic of the Emory Vaccine Research Center, Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Decatur, GA, United States
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, United States
- *Correspondence: Cassie G. Ackerley,
| | - S. Abigail Smith
- The Hope Clinic of the Emory Vaccine Research Center, Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Decatur, GA, United States
| | - Phillip M. Murray
- The Hope Clinic of the Emory Vaccine Research Center, Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Decatur, GA, United States
| | - Praveen K. Amancha
- The Hope Clinic of the Emory Vaccine Research Center, Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Decatur, GA, United States
| | - Robert A. Arthur
- Emory Integrated Computational Core, Emory University, Atlanta, GA, United States
| | - Zhengyi Zhu
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, GA, United States
| | - Ann Chahroudi
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, United States
- Emory National Primate Research Center, Emory University, Atlanta, GA, United States
- Center for Childhood Infections and Vaccines of Children’s Healthcare of Atlanta, Emory University, Atlanta, GA, United States
| | - Rama R. Amara
- Emory National Primate Research Center, Emory University, Atlanta, GA, United States
- Department of Microbiology and Immunology, Emory University, Atlanta, GA, United States
| | - Yi-Juan Hu
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, GA, United States
| | - Colleen F. Kelley
- The Hope Clinic of the Emory Vaccine Research Center, Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Decatur, GA, United States
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25
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Chigorimbo-Murefu NTL, Potgieter M, Dzanibe S, Gabazana Z, Buri G, Chawla A, Nleya B, Olivier AJ, Harryparsad R, Calder B, Garnett S, Maziya L, Lewis DA, Jaspan H, Wilson D, Passmore JAS, Mulder N, Blackburn J, Bekker LG, Gray CM. A pilot study to show that asymptomatic sexually transmitted infections alter the foreskin epithelial proteome. Front Microbiol 2022; 13:928317. [PMID: 36325020 PMCID: PMC9618803 DOI: 10.3389/fmicb.2022.928317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 08/22/2022] [Indexed: 11/13/2022] Open
Abstract
There is limited data on the role of asymptomatic STIs (aSTIs) on the risk of human immunodeficiency virus (HIV) acquisition in the male genital tract (MGT). The impact of foreskin removal on lowering HIV acquisition is well described, but molecular events leading to HIV acquisition are unclear. Here, in this pilot study, we show that asymptomatic urethral infection with Chlamydia trachomatis (CT) significantly impacts the foreskin proteome composition. We developed and optimized a shotgun liquid chromatography coupled tandem mass spectrometry (MS)-based proteomics approach and utilized this on foreskins collected at medical male circumcision (MMC) from 16 aSTI+ men and 10 age-matched STI- controls. We used a novel bioinformatic metaproteomic pipeline to detect differentially expressed (DE) proteins. Gene enrichment ontology analysis revealed proteins associated with inflammatory and immune activation function in both inner and outer foreskin from men with an aSTI. Neutrophil activation/degranulation and viral-evasion proteins were significantly enriched in foreskins from men with aSTI, whereas homotypic cell–cell adhesion proteins were enriched in foreskin tissue from men without an aSTI. Collectively, our data show that asymptomatic urethral sexually transmitted infections result in profound alterations in epithelial tissue that are associated with depletion of barrier integrity and immune activation.
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26
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van Teijlingen NH, Helgers LC, Sarrami-Forooshani R, Zijlstra-Willems EM, van Hamme JL, Segui-Perez C, van Smoorenburg MY, Borgdorff H, van de Wijgert JH, van Leeuwen E, van der Post JA, Strijbis K, Ribeiro CM, Geijtenbeek TB. Vaginal bacterium Prevotella timonensis turns protective Langerhans cells into HIV-1 reservoirs for virus dissemination. EMBO J 2022; 41:e110629. [PMID: 35968812 PMCID: PMC9531304 DOI: 10.15252/embj.2022110629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 07/08/2022] [Accepted: 07/18/2022] [Indexed: 11/09/2022] Open
Abstract
Dysbiosis of vaginal microbiota is associated with increased HIV-1 acquisition, but the underlying cellular mechanisms remain unclear. Vaginal Langerhans cells (LCs) protect against mucosal HIV-1 infection via autophagy-mediated degradation of HIV-1. As LCs are in continuous contact with bacterial members of the vaginal microbiome, we investigated the impact of commensal and dysbiosis-associated vaginal (an)aerobic bacterial species on the antiviral function of LCs. Most of the tested bacteria did not affect the HIV-1 restrictive function of LCs. However, Prevotella timonensis induced a vast uptake of HIV-1 by vaginal LCs. Internalized virus remained infectious for days and uptake was unaffected by antiretroviral drugs. P. timonensis-exposed LCs efficiently transmitted HIV-1 to target cells both in vitro and ex vivo. Additionally, P. timonensis exposure enhanced uptake and transmission of the HIV-1 variants that establish infection after sexual transmission, the so-called Transmitted Founder variants. Our findings, therefore, suggest that P. timonensis might set the stage for enhanced HIV-1 susceptibility during vaginal dysbiosis and advocate targeted treatment of P. timonensis during bacterial vaginosis to limit HIV-1 infection.
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Affiliation(s)
- Nienke H van Teijlingen
- Department of Experimental Immunology, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands.,Amsterdam institute for Infection and Immunity, Amsterdam, The Netherlands
| | - Leanne C Helgers
- Department of Experimental Immunology, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands.,Amsterdam institute for Infection and Immunity, Amsterdam, The Netherlands
| | - Ramin Sarrami-Forooshani
- Department of Experimental Immunology, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands.,ATMP Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran
| | - Esther M Zijlstra-Willems
- Department of Experimental Immunology, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands.,Amsterdam institute for Infection and Immunity, Amsterdam, The Netherlands
| | - John L van Hamme
- Department of Experimental Immunology, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands.,Amsterdam institute for Infection and Immunity, Amsterdam, The Netherlands
| | - Celia Segui-Perez
- Division Infectious Diseases and Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, University of Utrecht, Utrecht, The Netherlands
| | - Marleen Y van Smoorenburg
- Department of Experimental Immunology, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands.,Amsterdam institute for Infection and Immunity, Amsterdam, The Netherlands
| | - Hanneke Borgdorff
- Amsterdam Institute for Global Health and Development (AIGHD), Amsterdam, The Netherlands
| | - Janneke Hhm van de Wijgert
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Elisabeth van Leeuwen
- Department of Obstetrics and Gynecology, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands
| | - Joris Am van der Post
- Department of Obstetrics and Gynecology, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands
| | - Karin Strijbis
- Division Infectious Diseases and Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, University of Utrecht, Utrecht, The Netherlands
| | - Carla Ms Ribeiro
- Department of Experimental Immunology, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands.,Amsterdam institute for Infection and Immunity, Amsterdam, The Netherlands
| | - Teunis Bh Geijtenbeek
- Department of Experimental Immunology, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands.,Amsterdam institute for Infection and Immunity, Amsterdam, The Netherlands
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27
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Viamonte M, Ghanooni D, Reynolds JM, Grov C, Carrico AW. Running with Scissors: a Systematic Review of Substance Use and the Pre-exposure Prophylaxis Care Continuum Among Sexual Minority Men. Curr HIV/AIDS Rep 2022; 19:235-250. [PMID: 35701713 PMCID: PMC9279195 DOI: 10.1007/s11904-022-00608-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/12/2022] [Indexed: 11/26/2022]
Abstract
Purpose of Review Patterns of sexualized drug use, including stimulants (e.g., methamphetamine) and chemsex drugs, are key drivers of HIV incidence among sexual minority men (SMM). Although pre-exposure prophylaxis (PrEP) mitigates HIV risk, there is no consensus regarding the associations of substance use with the PrEP care continuum. Recent Findings SMM who use substances are as likely or more likely to use PrEP. Although SMM who use stimulants experience greater difficulties with daily oral PrEP adherence, some evidence shows that SMM who use stimulants or chemsex drugs may achieve better adherence in the context of recent condomless anal sex. Finally, SMM who use substances may experience greater difficulties with PrEP persistence (including retention in PrEP care). Summary SMM who use stimulants and other substances would benefit from more comprehensive efforts to support PrEP re-uptake, adherence, and persistence, including delivering behavioral interventions, considering event-based dosing, and providing injectable PrEP.
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Affiliation(s)
- Michael Viamonte
- Department of Public Health Sciences, University of Miami Miller School of Medicine, 1120 NW 14th St., Office 1010, Miami, FL, 33136, USA
| | - Delaram Ghanooni
- Department of Public Health Sciences, University of Miami Miller School of Medicine, 1120 NW 14th St., Office 1010, Miami, FL, 33136, USA
| | - John M Reynolds
- Calder Memorial Library, University of Miami, FL, Miami, USA
| | - Christian Grov
- City University of New York Graduate School of Public Health and Health Policy, New York, NY, USA
| | - Adam W Carrico
- Department of Public Health Sciences, University of Miami Miller School of Medicine, 1120 NW 14th St., Office 1010, Miami, FL, 33136, USA.
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28
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Hu S, Buser E, Arredondo J, Relyea D, Santos Rocha C, Dandekar S. Altered Expression of ACE2 and Co-receptors of SARS-CoV-2 in the Gut Mucosa of the SIV Model of HIV/AIDS. Front Microbiol 2022; 13:879152. [PMID: 35495669 PMCID: PMC9048205 DOI: 10.3389/fmicb.2022.879152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 03/15/2022] [Indexed: 12/02/2022] Open
Abstract
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, the cause of the COVID-19 pandemic, is initiated by its binding to the ACE2 receptor and other co-receptors on mucosal epithelial cells. Variable outcomes of the infection and disease severity can be influenced by pre-existing risk factors. Human immunodeficiency virus (HIV), the cause of AIDS, targets the gut mucosal immune system and impairs epithelial barriers and mucosal immunity. We sought to determine the impact and mechanisms of pre-existing HIV infection increasing mucosal vulnerability to SARS-CoV-2 infection and disease. We investigated changes in the expression of ACE2 and other SARS-CoV-2 receptors and related pathways in virally inflamed gut by using the SIV infected rhesus macaque model of HIV/AIDS. Immunohistochemical analysis showed sustained/enhanced ACE2 expression in the gut epithelium of SIV infected animals compared to uninfected controls. Gut mucosal transcriptomic analysis demonstrated enhanced expression of host factors that support SARS-CoV-2 entry, replication, and infection. Metabolomic analysis of gut luminal contents revealed the impact of SIV infection as demonstrated by impaired mitochondrial function and decreased immune response, which render the host more vulnerable to other pathogens. In summary, SIV infection resulted in sustained or increased ACE2 expression in an inflamed and immune-impaired gut mucosal microenvironment. Collectively, these mucosal changes increase the susceptibility to SARS-CoV-2 infection and disease severity and result in ineffective viral clearance. Our study highlights the use of the SIV model of AIDS to fill the knowledge gap of the enteric mechanisms of co-infections as risk factors for poor disease outcomes, generation of new viral variants and immune escape in COVID-19.
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Affiliation(s)
- Shuang Hu
- Department of Medical Microbiology and Immunology, School of Medicine, University of California, Davis, Davis, CA, United States
| | - Elise Buser
- Department of Medical Microbiology and Immunology, School of Medicine, University of California, Davis, Davis, CA, United States
| | - Juan Arredondo
- Department of Medical Microbiology and Immunology, School of Medicine, University of California, Davis, Davis, CA, United States
| | - Dylan Relyea
- Department of Medical Microbiology and Immunology, School of Medicine, University of California, Davis, Davis, CA, United States
| | - Clarissa Santos Rocha
- Department of Medical Microbiology and Immunology, School of Medicine, University of California, Davis, Davis, CA, United States
| | - Satya Dandekar
- Department of Medical Microbiology and Immunology, School of Medicine, University of California, Davis, Davis, CA, United States
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29
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Bagri P, Anipindi VC, Kaushic C. The Role of IL-17 During Infections in the Female Reproductive Tract. Front Immunol 2022; 13:861444. [PMID: 35493460 PMCID: PMC9046847 DOI: 10.3389/fimmu.2022.861444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 03/22/2022] [Indexed: 11/15/2022] Open
Abstract
Interleukin-17 (IL-17A) is a cytokine involved in a complex array of both protective and detrimental processes. Although early biological studies focused on the pro-inflammatory function of IL-17 in the context of autoimmune and inflammatory disorders, it has become increasingly evident that the roles of IL-17 are far more nuanced. Recent work has demonstrated that the functions of IL-17 are highly context- and tissue-dependent, and there is a fine balance between the pathogenic and protective functions of IL-17. This is especially evident in mucosal tissues such as the female reproductive tract, where IL-17 has been shown to play an important role in the immune response generated during fungal, bacterial and viral infections associated with protection, but also with inflammation. In this review, we discuss the evolving landscape of IL-17 biology within the context of the vaginal mucosa, focusing on key findings that highlight the importance of this cytokine in genital mucosal immunity.
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Affiliation(s)
- Puja Bagri
- McMaster Immunology Research Centre, McMaster University, Hamilton, ON, Canada
- Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Varun C. Anipindi
- McMaster Immunology Research Centre, McMaster University, Hamilton, ON, Canada
- Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Charu Kaushic
- McMaster Immunology Research Centre, McMaster University, Hamilton, ON, Canada
- Department of Medicine, McMaster University, Hamilton, ON, Canada
- *Correspondence: Charu Kaushic,
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Vaccine-Induced, High-Magnitude HIV Env-Specific Antibodies with Fc-Mediated Effector Functions Are Insufficient to Protect Infant Rhesus Macaques against Oral SHIV Infection. mSphere 2022; 7:e0083921. [PMID: 35196125 PMCID: PMC8865927 DOI: 10.1128/msphere.00839-21] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Improved access to antiretroviral therapy (ART) and antenatal care has significantly reduced in utero and peripartum mother-to-child human immunodeficiency virus (HIV) transmission. However, as breast milk transmission of HIV still occurs at an unacceptable rate, there remains a need to develop an effective vaccine for the pediatric population. Previously, we compared different HIV vaccine strategies, intervals, and adjuvants in infant rhesus macaques to optimize the induction of HIV envelope (Env)-specific antibodies with Fc-mediated effector function. In this study, we tested the efficacy of an optimized vaccine regimen against oral simian-human immunodeficiency virus (SHIV) acquisition in infant macaques. Twelve animals were immunized with 1086.c gp120 protein adjuvanted with 3M-052 in stable emulsion and modified vaccinia Ankara (MVA) virus expressing 1086.c HIV Env. Twelve control animals were immunized with empty MVA. The vaccine prime was given within 10 days of birth, with booster doses being administered at weeks 6 and 12. The vaccine regimen induced Env-specific plasma IgG antibodies capable of antibody-dependent cellular cytotoxicity (ADCC) and phagocytosis (ADCP). Beginning at week 15, infants were exposed orally to escalating doses of heterologous SHIV-1157(QNE)Y173H once a week until infected. Despite the induction of strong Fc-mediated antibody responses, the vaccine regimen did not reduce the risk of infection or time to acquisition compared to controls. However, among vaccinated animals, ADCC postvaccination and postinfection was associated with reduced peak viremia. Thus, nonneutralizing Env-specific antibodies with Fc effector function elicited by this vaccine regimen were insufficient for protection against heterologous oral SHIV infection shortly after the final immunization but may have contributed to control of viremia. IMPORTANCE Women of childbearing age are three times more likely to contract HIV infection than their male counterparts. Poor HIV testing rates coupled with low adherence to antiretroviral therapy (ART) result in a high risk of mother-to-infant HIV transmission, especially during the breastfeeding period. A preventative vaccine could curb pediatric HIV infections, reduce potential health sequalae, and prevent the need for lifelong ART in this population. The results of the current study imply that the HIV Env-specific IgG antibodies elicited by this candidate vaccine regimen, despite a high magnitude of Fc-mediated effector function but a lack of neutralizing antibodies and polyfunctional T cell responses, were insufficient to protect infant rhesus macaques against oral virus acquisition.
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Abstract
Globally, the most frequent route of HIV transmission is through sexual intercourse. In women, sexual transmission of HIV involves cervical, vaginal, endometrial, and rectal mucosal exposure to the virus. Here we describe technical protocols for ex vivo cervical, vaginal, and rectal tissue infection models and cultures that can be used to assess tissue susceptibility to infection under different conditions as well as the potential antiviral efficacy of a treatment for HIV prevention or cure.
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Affiliation(s)
| | - Nikolas C Vann
- CONRAD, Eastern Virginia Medical School, Norfolk, VA, USA
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Insertive condom-protected and condomless vaginal sex both have a profound impact on the penile immune correlates of HIV susceptibility. PLoS Pathog 2022; 18:e1009948. [PMID: 34982799 PMCID: PMC8769335 DOI: 10.1371/journal.ppat.1009948] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 01/19/2022] [Accepted: 12/13/2021] [Indexed: 12/18/2022] Open
Abstract
The penis is the primary site of HIV acquisition in heterosexual men. Elevated penile inflammatory cytokines increase sexual acquisition risk, and topically applied cytokines enhance foreskin HIV susceptibility in an explant model. However, the impact of penile-vaginal sex on these immune parameters is undefined. Heterosexual couples were recruited to the Sex, Couples and Science (SECS) Study, with the collection of penile swabs, semen, cervico-vaginal secretions, and blood after a period of abstinence, and repeated sampling up to 72 hours after either condomless (n = 30) or condom-protected (n = 8) penile-vaginal sex. Soluble immune parameters were quantified by multiplex immunoassay. Co-primary immune endpoints were penile levels of IL-8 and MIG, cytokines previously linked to penile HIV acquisition. One hour after sex there were dramatic increases in penile IL-8 and MIG levels, regardless of condom use, with a gradual return to baseline by 72 hours; similar patterns were observed for other chemoattractant chemokines. Penile cytokine changes were similar in circumcised and uncircumcised men, and repeated measures ANOVA and ANCOVA models demonstrated that the degree of change after condomless sex was explained by cytokine levels in their partners’ cervico-vaginal secretions. This may have important implications for the biology of penile HIV acquisition. In heterosexual men, the penis is the primary site of Human Immunodeficiency Virus (HIV) acquisition. Levels of inflammatory cytokines in the coronal sulcus are associated with an increased HIV risk, and we hypothesized that these may be altered after insertive penile sex. Therefore, we designed the Sex, Couples and Science Study (SECS study) to define the impact of penile-vaginal sex on the penile immune correlates of HIV susceptibility. We found that multiple coronal sulcus cytokines increased dramatically and rapidly after sex, regardless of condom use, with a return to baseline levels by 72 hours. The changes observed after condomless sex were strongly predicted by cytokine concentrations in the vaginal secretions of the female partner, and were similar in circumcised and uncircumcised men. We believe that these findings have important implications for understanding the immunopathogenesis of penile HIV acquisition; in addition, they have important implications for the design of clinical studies of penile HIV acquisition and prevention.
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Kelley CF, Pollack I, Yacoub R, Zhu Z, Van Doren VE, Gumber S, Amara RR, Fedirko V, Kraft CS, de Man TJB, Hu YJ, Grimsley Ackerley C, Sullivan PS, Bostick RM. Condomless receptive anal intercourse is associated with markers of mucosal inflammation in a cohort of men who have sex with men in Atlanta, Georgia. J Int AIDS Soc 2021; 24:e25859. [PMID: 34911162 PMCID: PMC8673926 DOI: 10.1002/jia2.25859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 11/25/2021] [Indexed: 11/16/2022] Open
Abstract
Introduction We previously showed that the rectal mucosal immune environment among men who have sex with men (MSM) engaging in condomless receptive anal intercourse (CRAI) is immunologically distinct from that of men who do not engage in anal intercourse (AI). Here, we further examined these differences with quantitative immunohistochemistry to better understand the geographic distribution of immune markers of interest. Methods We enrolled a cohort of MSM engaging in CRAI (n = 41) and men who do not engage in AI (n = 21) between October 2013 and April 2015. Participants were healthy, HIV‐negative men aged 18–45 from the metro Atlanta area. We performed rectal mucosal sampling via rigid sigmoidoscopy during two study visits separated by a median of nine weeks and timed with sexual activity for MSM engaging in CRAI. We used standardized, automated immunohistochemistry and quantitative image analysis to investigate the rectal mucosal distribution of neutrophils (MPO), IL‐17‐producing cells (IL‐17) and Tregs (FOXP3) in the lamina propria, and cellular proliferation (Ki67) and adherens junction protein (E‐cadherin) in the epithelium. We examined associations between biomarker expression and the rectal mucosal microbiota composition by 16s rRNA sequencing. Results Relative to the colonic crypt base, IL‐17, FOXP3, and MPO expression increased towards the rectal lumen, while Ki67 decreased and E‐cadherin was more uniformly distributed. Throughout the rectal mucosa distribution examined, MSM engaging in CRAI had higher mean lamina propria MPO expression (p = 0.04) and epithelial Ki67 (p = 0.04) compared to controls. There were no significant differences in IL‐17, FOXP3 or E‐cadherin expression. We found no significant associations of the five biomarkers with the global rectal microbiota composition or the individual taxa examined. Conclusions Understanding the mucosal distribution of inflammatory mediators can enhance our knowledge of the earliest events in HIV transmission. Neutrophil enrichment and crypt epithelial cell proliferation likely represent sub‐clinical inflammation in response to CRAI in the rectal mucosa of MSM, which could increase the risk for HIV acquisition. However, the contributory role of the microbiota in mucosal inflammation among MSM remains unclear. HIV prevention may be enhanced by interventions that reduce inflammation or capitalize on the presence of specific inflammatory mechanisms during HIV exposure.
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Affiliation(s)
- Colleen F Kelley
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, The Hope Clinic, Atlanta, Georgia, USA.,Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Ilana Pollack
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, The Hope Clinic, Atlanta, Georgia, USA
| | - Rami Yacoub
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Zhengyi Zhu
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Vanessa E Van Doren
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, The Hope Clinic, Atlanta, Georgia, USA
| | - Sanjeev Gumber
- Division of Pathology, Yerkes National Primate Research Center, Emory University, Atlanta, Georgia, USA.,Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Rama R Amara
- Division of Microbiology and Immunology, Yerkes National Primate Research Center, Emory University, Atlanta, Georgia, USA.,Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Veronika Fedirko
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA.,Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Colleen S Kraft
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, The Hope Clinic, Atlanta, Georgia, USA.,Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | | | - Yi-Juan Hu
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Cassie Grimsley Ackerley
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, The Hope Clinic, Atlanta, Georgia, USA
| | - Patrick S Sullivan
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Roberd M Bostick
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
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Yu Q, Wang LC, Di Benigno S, Stein DC, Song W. Gonococcal invasion into epithelial cells depends on both cell polarity and ezrin. PLoS Pathog 2021; 17:e1009592. [PMID: 34852011 PMCID: PMC8668114 DOI: 10.1371/journal.ppat.1009592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 12/13/2021] [Accepted: 11/15/2021] [Indexed: 11/18/2022] Open
Abstract
Neisseria gonorrhoeae (GC) establishes infection in women from the cervix, lined with heterogeneous epithelial cells from non-polarized stratified at the ectocervix to polarized columnar at the endocervix. We have previously shown that GC differentially colonize and transmigrate across the ecto and endocervical epithelia. However, whether and how GC invade into heterogeneous cervical epithelial cells is unknown. This study examined GC entry of epithelial cells with various properties, using human cervical tissue explant and non-polarized/polarized epithelial cell line models. While adhering to non-polarized and polarized epithelial cells at similar levels, GC invaded into non-polarized more efficiently than polarized epithelial cells. The enhanced GC invasion in non-polarized epithelial cells was associated with increased ezrin phosphorylation, F-actin and ezrin recruitment to GC adherent sites, and the elongation of GC-associated microvilli. Inhibition of ezrin phosphorylation inhibited F-actin and ezrin recruitment and microvilli elongation, leading to a reduction in GC invasion. The reduced GC invasion in polarized epithelial cells was associated with non-muscle myosin II-mediated F-actin disassembly and microvilli denudation at GC adherence sites. Surprisingly, intraepithelial GC were only detected inside epithelial cells shedding from the cervix by immunofluorescence microscopy, but not significantly in the ectocervical and the endocervical regions. We observed similar ezrin and F-actin recruitment in exfoliated cervical epithelial cells but not in those that remained in the ectocervical epithelium, as the luminal layer of ectocervical epithelial cells expressed ten-fold lower levels of ezrin than those beneath. However, GC inoculation induced F-actin reduction and myosin recruitment in the endocervix, similar to what was seen in polarized epithelial cells. Collectively, our results suggest that while GC invade non-polarized epithelial cells through ezrin-driven microvilli elongation, the apical polarization of ezrin and F-actin inhibits GC entry into polarized epithelial cells. Neisseria gonorrhoeae (GC) causes gonorrhea in women by infecting the female reproductive tract. GC entry of epithelial cells has long been observed in patients’ biopsies and studied in various types of epithelial cells. However, how GC invade into the heterogeneous epithelia of the human cervix is unknown. This study reveals that both the expression level of ezrin, an actin-membrane linker protein, and the polarization of ezrin-actin networks in epithelial cells regulate GC invasion. GC interactions with non-polarized squamous epithelial cells expressing ezrin induce ezrin activation, ezrin-actin accumulation, and microvilli elongation at GC adherent sites, leading to invasion. Low ezrin expression levels in the luminal ectocervical epithelial cells are associated with low levels of intraepithelial GC. In contrast, apical polarization of ezrin-actin networks in columnar endocervical epithelial cells reduces GC invasion. GC interactions induce myosin activation, which causes disassembly of ezrin-actin networks and microvilli modification at GC adherent sites, extending GC-epithelial contact. Expression of opacity-associated proteins on GC promotes GC invasion by enhancing ezrin-actin accumulation in squamous epithelial cells and inhibiting ezrin-actin disassembly in columnar endocervical epithelial cells. Thus, reduced ezrin expression and ezrin-actin polarization are potential ways for cervical epithelial cells to curtail GC invasion.
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Affiliation(s)
- Qian Yu
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, Maryland, United States of America
| | - Liang-Chun Wang
- Marine & Pathogenic Microbiology Lab, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Sofia Di Benigno
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, Maryland, United States of America
| | - Daniel C Stein
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, Maryland, United States of America
| | - Wenxia Song
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, Maryland, United States of America
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Jewanraj J, Ngcapu S, Liebenberg LJP. Semen: A modulator of female genital tract inflammation and a vector for HIV-1 transmission. Am J Reprod Immunol 2021; 86:e13478. [PMID: 34077596 PMCID: PMC9286343 DOI: 10.1111/aji.13478] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 05/07/2021] [Accepted: 05/27/2021] [Indexed: 12/12/2022] Open
Abstract
In order to establish productive infection in women, HIV must transverse the vaginal epithelium and gain access to local target cells. Genital inflammation contributes to the availability of HIV susceptible cells at the female genital mucosa and is associated with higher HIV transmission rates in women. Factors that contribute to genital inflammation may subsequently increase the risk of HIV infection in women. Semen is a highly immunomodulatory fluid containing several bioactive molecules with the potential to influence inflammation and immune activation at the female genital tract. In addition to its role as a vector for HIV transmission, semen induces profound mucosal changes to prime the female reproductive tract for conception. Still, most studies of mucosal immunity are conducted in the absence of semen or without considering its immune impact on the female genital tract. This review discusses the various mechanisms by which semen exposure may influence female genital inflammation and highlights the importance of routine screening for semen biomarkers in vaginal specimens to account for its impact on genital inflammation.
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Affiliation(s)
- Janine Jewanraj
- Centre for the AIDS Programme of Research in South Africa (CAPRISA)DurbanSouth Africa
- Department of Medical MicrobiologyUniversity of KwaZulu‐NatalDurbanSouth Africa
| | - Sinaye Ngcapu
- Centre for the AIDS Programme of Research in South Africa (CAPRISA)DurbanSouth Africa
- Department of Medical MicrobiologyUniversity of KwaZulu‐NatalDurbanSouth Africa
| | - Lenine J. P. Liebenberg
- Centre for the AIDS Programme of Research in South Africa (CAPRISA)DurbanSouth Africa
- Department of Medical MicrobiologyUniversity of KwaZulu‐NatalDurbanSouth Africa
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Chawuke P, van den Berg N, Fouche G, Maharaj V, Shoko T, Johan van der Westhuizen C, Invernizzi L, Alexandre KB. Lobostemon trigonus (Thunb.) H. Buek, a medicinal plant from South Africa as a potential natural microbicide against HIV-1. JOURNAL OF ETHNOPHARMACOLOGY 2021; 277:114222. [PMID: 34033901 DOI: 10.1016/j.jep.2021.114222] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 05/08/2021] [Accepted: 05/18/2021] [Indexed: 05/26/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE There have been different methods proposed to prevent the sexual transmission of HIV-1 and many of them have centered on the use of anti-retrovirals as microbicides. Given that a large section of the African population still relies on herbal medicine, Lobostemon trigonus (L. trigonus), a traditionally used medicinal plant in South Africa to treat HIV-1 was further investigated for its potential as a natural microbicide to prevent the sexual transmission of HIV-1. METHODS The aerial parts of L. trigonus were oven-dried at 80 °C, ground, extracted with boiling water for 30 min and then filtered. The aqueous extract produced was then bioassayed using different HIV-1 inhibition assays. The active components were purified and chemically profiled using ultra-performance liquid chromatography/quadrupole time-of flight mass spectrometry (UPLC-qTOF-MS). The mechanism of HIV-1 inhibition was determined by fusion arrest assay and time of addition assay. Molecular modelling and molecular dynamic simulations, using Schrödinger, were used to better understand the molecule's mechanism of entry inhibition by evaluating their docking affinity and stability against the gp120 of HIV-1. RESULTS The aqueous extract of this plant had a broad spectrum of activity against different subtypes of the virus; neutralizing subtype A, B and C in the TZM-bl cells, with IC50 values ranging from 0.10 to 7.21 μg/mL. The extract was also inhibitory to the virus induced cytopathic effects in CEM-SS cells with an EC50 of 8.9 μg/mL. In addition, it inhibited infection in peripheral blood mononuclear cells (PBMC) and macrophages with IC50 values of 0.97 and 4.4 μg/mL, respectively. In the presence of vaginal and seminal simulants, and in human semen it retained its inhibitory activity albeit with a decrease in efficiency, by about 3-fold. Studies of the mode of action suggested that the extract blocked HIV-1 attachment to target cells. No toxicity was observed when the Lactobacilli strains, L. acidophilus, L. jensenii, and L. crispatus that populate the female genital tract were cultured in the presence of L. trigonus extract. UPLC-qTOF-MS analyses of the purified fraction of the extract, confirmed the presence of six compounds of which four were identified as rosmarinic acid, salvianolic acids B and C and lithospermic acid. The additional molecular dynamic simulations provided further insight into the entry inhibitory characteristics of salvianolic acid B against the HIV-1 gp120, with a stable pose being found within the CD4 binding site. CONCLUSION The data suggests that the inhibitory effect of L. trigonus may be due to the presence of organic acids which are known to possess anti-HIV-1 properties. The molecules salvianolic acids B and C have been identified for the first time in L. trigonus species. Our study also showed that the L. trigonus extract blocked HIV-1 attachment to target cells, and that it has a broad spectrum of activity against different subtypes of the virus; thus, justifying further investigation as a HIV-1 microbicide.
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Affiliation(s)
- Phindiwe Chawuke
- Council for Scientific and Industrial Research, Pretoria, South Africa; University of Pretoria, Department of Chemistry, Pretoria, South Africa.
| | | | - Gerda Fouche
- University of Pretoria, Department of Chemistry, Pretoria, South Africa.
| | - Vinesh Maharaj
- University of Pretoria, Department of Chemistry, Pretoria, South Africa.
| | - Tinotenda Shoko
- University of Pretoria, Department of Chemistry, Pretoria, South Africa.
| | | | - Luke Invernizzi
- University of Pretoria, Department of Chemistry, Pretoria, South Africa.
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Jia X, Shao Q, Chaudhry AR, Kinlock BL, Izban MG, Zhang HY, Villalta F, Hildreth JEK, Liu B. Medroxyprogesterone Acetate (MPA) Enhances HIV-1 Accumulation and Release in Primary Cervical Epithelial Cells by Inhibiting Lysosomal Activity. Pathogens 2021; 10:1192. [PMID: 34578224 PMCID: PMC8465616 DOI: 10.3390/pathogens10091192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 09/08/2021] [Accepted: 09/10/2021] [Indexed: 12/30/2022] Open
Abstract
Medroxyprogesterone acetate (MPA) is one of the most widely used contraceptives in the world. Epidemiologic studies have uncovered a possible link between the use of MPA and an increased risk of HIV-1 transmission. However, the understanding of the mechanism is still limited. Our previous publication demonstrated that the lysosomal activity in human vaginal epithelial cells attenuated the trafficking of viral particles during HIV-1 transcytosis. In this study, we show that treating human primary cervical epithelial cells with MPA led to a reduction in lysosomal activity. This reduction caused an increase in the intracellular HIV-1 accumulation and, consequently, an increase in viral release. Our study uncovers a novel mechanism by which MPA enhances HIV-1 release in primary cervical epithelial cells, thus providing vital information for HIV intervention and prevention.
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Affiliation(s)
- Xiangxu Jia
- Center for AIDS Health Disparities Research, Meharry Medical College, Nashville, TN 37208, USA; (X.J.); (Q.S.); (B.L.K.); (F.V.); (J.E.K.H.)
| | - Qiujia Shao
- Center for AIDS Health Disparities Research, Meharry Medical College, Nashville, TN 37208, USA; (X.J.); (Q.S.); (B.L.K.); (F.V.); (J.E.K.H.)
| | - Ahsen R. Chaudhry
- Department of Obstetrics and Gynecology, Meharry Medical College, Nashville, TN 37208, USA;
| | - Ballington L. Kinlock
- Center for AIDS Health Disparities Research, Meharry Medical College, Nashville, TN 37208, USA; (X.J.); (Q.S.); (B.L.K.); (F.V.); (J.E.K.H.)
| | - Michael G. Izban
- Department of Pathology, Meharry Medical College, Nashville, TN 37208, USA;
| | - Hong-Ying Zhang
- Nanjing Municipal Center of Disease Control and Prevention, Nanjing 210003, China;
| | - Fernando Villalta
- Center for AIDS Health Disparities Research, Meharry Medical College, Nashville, TN 37208, USA; (X.J.); (Q.S.); (B.L.K.); (F.V.); (J.E.K.H.)
- Department of Microbiology, Immunology and Physiology, Meharry Medical College, Nashville, TN 37208, USA
| | - James E. K. Hildreth
- Center for AIDS Health Disparities Research, Meharry Medical College, Nashville, TN 37208, USA; (X.J.); (Q.S.); (B.L.K.); (F.V.); (J.E.K.H.)
| | - Bindong Liu
- Center for AIDS Health Disparities Research, Meharry Medical College, Nashville, TN 37208, USA; (X.J.); (Q.S.); (B.L.K.); (F.V.); (J.E.K.H.)
- Department of Microbiology, Immunology and Physiology, Meharry Medical College, Nashville, TN 37208, USA
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Sobia P, Archary D. Preventive HIV Vaccines-Leveraging on Lessons from the Past to Pave the Way Forward. Vaccines (Basel) 2021; 9:vaccines9091001. [PMID: 34579238 PMCID: PMC8472969 DOI: 10.3390/vaccines9091001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 09/01/2021] [Accepted: 09/03/2021] [Indexed: 12/05/2022] Open
Abstract
Almost four decades on, since the 1980’s, with hundreds of HIV vaccine candidates tested in both non-human primates and humans, and several HIV vaccines trials later, an efficacious HIV vaccine continues to evade us. The enormous worldwide genetic diversity of HIV, combined with HIV’s inherent recombination and high mutation rates, has hampered the development of an effective vaccine. Despite the advent of antiretrovirals as pre-exposure prophylaxis and preventative treatment, which have shown to be effective, HIV infections continue to proliferate, highlighting the great need for a vaccine. Here, we provide a brief history for the HIV vaccine field, with the most recent disappointments and advancements. We also provide an update on current passive immunity trials, testing proof of the concept of the most clinically advanced broadly neutralizing monoclonal antibodies for HIV prevention. Finally, we include mucosal immunity, the importance of vaccine-elicited immune responses and the challenges thereof in the most vulnerable environment–the female genital tract and the rectal surfaces of the gastrointestinal tract for heterosexual and men who have sex with men transmissions, respectively.
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Affiliation(s)
- Parveen Sobia
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Nelson Mandela School of Medicine, University of KwaZulu-Natal, Durban 4001, South Africa;
| | - Derseree Archary
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Nelson Mandela School of Medicine, University of KwaZulu-Natal, Durban 4001, South Africa;
- Department of Medical Microbiology, University of KwaZulu-Natal, Durban 4001, South Africa
- Correspondence: ; Tel.: +27-(0)-31-655-0540
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van Haaren MM, McCoy LE, Torres JL, Lee W, Cottrell CA, Copps JL, van der Woude P, Yasmeen A, de Taeye SW, Torrents de la Peña A, Moore JP, Burton DR, Klasse PJ, Ward AB, Sanders RW, van Gils MJ. Antibodies from Rabbits Immunized with HIV-1 Clade B SOSIP Trimers Can Neutralize Multiple Clade B Viruses by Destabilizing the Envelope Glycoprotein. J Virol 2021; 95:e0009421. [PMID: 34076487 PMCID: PMC8354326 DOI: 10.1128/jvi.00094-21] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 05/19/2021] [Indexed: 12/19/2022] Open
Abstract
The high viral diversity of HIV-1 is a formidable hurdle for the development of an HIV-1 vaccine. Elicitation of broadly neutralizing antibodies (bNAbs) would offer a solution, but so far immunization strategies have failed to efficiently elicit bNAbs. To overcome these obstacles, it is important to understand the immune responses elicited by current HIV-1 envelope glycoprotein (Env) immunogens. To gain more insight, we characterized monoclonal antibodies (MAbs) isolated from rabbits immunized with Env SOSIP trimers based on the clade B isolate AMC008. Four rabbits that were immunized three times with AMC008 trimer developed robust autologous and sporadic low-titer heterologous neutralizing responses. Seventeen AMC008 trimer-reactive MAbs were isolated using antigen-specific single B-cell sorting. Four of these MAbs neutralized the autologous AMC008 virus and several other clade B viruses. When visualized by electron microscopy, the complex of the neutralizing MAbs with the AMC008 trimer showed binding to the gp41 subunit with unusual approach angles, and we observed that their neutralization ability depended on their capacity to induce Env trimer dissociation. Thus, AMC008 SOSIP trimer immunization induced clade B-neutralizing MAbs with unusual approach angles with neutralizing effects that involve trimer destabilization. Optimizing these responses might provide an avenue to the induction of trimer-dissociating bNAbs. IMPORTANCE Roughly 32 million people have died as a consequence of HIV-1 infection since the start of the epidemic, and 1.7 million people still get infected with HIV-1 annually. Therefore, a vaccine to prevent HIV-1 infection is urgently needed. Current HIV-1 immunogens are not able to elicit the broad immune responses needed to provide protection against the large variation of HIV-1 strains circulating globally. A better understanding of the humoral immune responses elicited by immunization with state-of-the-art HIV-1 immunogens should facilitate the design of improved HIV-1 vaccine candidates. We identified antibodies with the ability to neutralize multiple HIV-1 viruses by destabilization of the envelope glycoprotein. Their weak but consistent cross-neutralization ability indicates the potential of this epitope to elicit broad responses. The trimer-destabilizing effect of the neutralizing MAbs, combined with detailed characterization of the neutralization epitope, can be used to shape the next generation of HIV-1 immunogens to elicit improved humoral responses after vaccination.
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Affiliation(s)
- M. M. van Haaren
- Department of Medical Microbiology, Amsterdam Infection & Immunity Institute, Amsterdam UMC, location AMC, University of Amsterdam, Amsterdam, The Netherlands
| | - L. E. McCoy
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, California, USA
- Division of Infection and Immunity, University College London, London, United Kingdom
| | - J. L. Torres
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, California, USA
| | - W. Lee
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, California, USA
| | - C. A. Cottrell
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, California, USA
| | - J. L. Copps
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, California, USA
| | - P. van der Woude
- Department of Medical Microbiology, Amsterdam Infection & Immunity Institute, Amsterdam UMC, location AMC, University of Amsterdam, Amsterdam, The Netherlands
| | - A. Yasmeen
- Department of Microbiology and Immunology, Weill Medical College of Cornell University, New York, New York, USA
| | - S. W. de Taeye
- Department of Medical Microbiology, Amsterdam Infection & Immunity Institute, Amsterdam UMC, location AMC, University of Amsterdam, Amsterdam, The Netherlands
| | - A. Torrents de la Peña
- Department of Medical Microbiology, Amsterdam Infection & Immunity Institute, Amsterdam UMC, location AMC, University of Amsterdam, Amsterdam, The Netherlands
| | - J. P. Moore
- Department of Microbiology and Immunology, Weill Medical College of Cornell University, New York, New York, USA
| | - D. R. Burton
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, California, USA
- International AIDS Vaccine Initiative–Neutralizing Antibody Center (IAVI-NAC), The Scripps Research Institute, La Jolla, California, USA
- Center for HIV/AIDS Vaccine Development (CHAVD), The Scripps Research Institute, La Jolla, California, USA
| | - P. J. Klasse
- Department of Microbiology and Immunology, Weill Medical College of Cornell University, New York, New York, USA
| | - A. B. Ward
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, California, USA
- International AIDS Vaccine Initiative–Neutralizing Antibody Center (IAVI-NAC), The Scripps Research Institute, La Jolla, California, USA
- Center for HIV/AIDS Vaccine Development (CHAVD), The Scripps Research Institute, La Jolla, California, USA
| | - R. W. Sanders
- Department of Medical Microbiology, Amsterdam Infection & Immunity Institute, Amsterdam UMC, location AMC, University of Amsterdam, Amsterdam, The Netherlands
- Department of Microbiology and Immunology, Weill Medical College of Cornell University, New York, New York, USA
| | - M. J. van Gils
- Department of Medical Microbiology, Amsterdam Infection & Immunity Institute, Amsterdam UMC, location AMC, University of Amsterdam, Amsterdam, The Netherlands
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Nijmeijer BM, Langedijk CJM, Geijtenbeek TBH. Mucosal Dendritic Cell Subsets Control HIV-1's Viral Fitness. Annu Rev Virol 2021; 7:385-402. [PMID: 32991263 DOI: 10.1146/annurev-virology-020520-025625] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Dendritic cell (DC) subsets are abundantly present in genital and intestinal mucosal tissue and are among the first innate immune cells that encounter human immunodeficiency virus type 1 (HIV-1) after sexual contact. Although DCs have specific characteristics that greatly enhance HIV-1 transmission, it is becoming evident that most DC subsets also have virus restriction mechanisms that exert selective pressure on the viruses during sexual transmission. In this review we discuss the current concepts of the immediate events following viral exposure at genital mucosal sites that lead to selection of specific HIV-1 variants called transmitted founder (TF) viruses. We highlight the importance of the TF HIV-1 phenotype and the role of different DC subsets in establishing infection. Understanding the biology of HIV-1 transmission will contribute to the design of novel treatment strategies preventing HIV-1 dissemination.
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Affiliation(s)
- Bernadien M Nijmeijer
- Department of Experimental Immunology, Amsterdam Institute of Infection and Immunity, Amsterdam University Medical Centers, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands;
| | - Catharina J M Langedijk
- Department of Experimental Immunology, Amsterdam Institute of Infection and Immunity, Amsterdam University Medical Centers, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands;
| | - Teunis B H Geijtenbeek
- Department of Experimental Immunology, Amsterdam Institute of Infection and Immunity, Amsterdam University Medical Centers, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands;
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41
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Ding C, Patel D, Ma Y, Mann JFS, Wu J, Gao Y. Employing Broadly Neutralizing Antibodies as a Human Immunodeficiency Virus Prophylactic & Therapeutic Application. Front Immunol 2021; 12:697683. [PMID: 34354709 PMCID: PMC8329590 DOI: 10.3389/fimmu.2021.697683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 07/05/2021] [Indexed: 11/18/2022] Open
Abstract
Despite the discovery that the human immunodeficiency virus 1 (HIV-1) is the pathogen of acquired immunodeficiency syndrome (AIDS) in 1983, there is still no effective anti-HIV-1 vaccine. The major obstacle to the development of HIV-1 vaccine is the extreme diversity of viral genome sequences. Nonetheless, a number of broadly neutralizing antibodies (bNAbs) against HIV-1 have been made and identified in this area. Novel strategies based on using these bNAbs as an efficacious preventive and/or therapeutic intervention have been applied in clinical. In this review, we summarize the recent development of bNAbs and its application in HIV-1 acquisition prevention as well as discuss the innovative approaches being used to try to convey protection within individuals at risk and being treated for HIV-1 infection.
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Affiliation(s)
- Chengchao Ding
- The First Affiliated Hospital of USTC, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, China
| | - Darshit Patel
- Department of Microbiology and Immunology, University of Western Ontario, London, ON, Canada
| | - Yunjing Ma
- Department of Microbiology and Immunology, University of Western Ontario, London, ON, Canada
| | - Jamie F S Mann
- Department of Microbiology and Immunology, University of Western Ontario, London, ON, Canada
| | - Jianjun Wu
- Department of AIDS Research, Anhui Provincial Center for Disease Control and Prevention, Hefei, China
| | - Yong Gao
- The First Affiliated Hospital of USTC, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, China.,Department of Microbiology and Immunology, University of Western Ontario, London, ON, Canada
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42
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Tapia GR, Glynn TR, Miller C, Manuzak JA, Broedlow CA, Mcgaugh A, Cherenack EM, Bauermeister JA, Grov C, Dilworth SE, Parisi R, Martinez D, Klatt NR, Carrico AW. Syndemics and preexposure prophylaxis are independently associated with rectal immune dysregulation in sexual minority men. AIDS 2021; 35:1295-1300. [PMID: 33710016 PMCID: PMC8603938 DOI: 10.1097/qad.0000000000002866] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE Syndemic conditions have been linked to engagement in receptive condomless anal sex (CAS) and HIV seroconversion. However, little is known about the biological pathways whereby syndemics could amplify vulnerability to HIV and other sexually transmitted infections (STIs). DESIGN HIV-negative sexual minority men (i.e. gay, bisexual and other MSM) were recruited from four STI clinics in South Florida for a cross-sectional study. METHODS Participants completed assessments for four syndemic conditions: depression, posttraumatic stress disorder, hazardous alcohol use and any stimulant use (i.e. any self-reported use or reactive urine toxicology results). Cytokine and chemokine levels were measured using LEGENDplex from the rectal swabs of 92 participants reporting receptive CAS and no antibiotic use in the past three months. RESULTS After controlling for age, race/ethnicity, preexposure prophylaxis (PrEP) use and number of receptive CAS partners, a greater number of syndemic conditions was associated with higher levels of rectal cytokines/chemokines relevant to immune activation, inflammation and the expansion and maintenance of T-helper 17 target cells, including rectal interferon-gamma (β = 0.22; P = 0.047), CXCL-8 (β = 0.24; P = 0.025) and interleukin-23 (β = 0.22; P = 0.049). Elevations in rectal cytokine or chemokine levels were most pronounced among participants experiencing two or more syndemic conditions compared with those experiencing no syndemic conditions. PrEP use was independently associated with elevations in multiple rectal cytokines/chemokines. CONCLUSION Syndemic conditions could increase biological vulnerability to HIV and other STIs in sexual minority men by potentiating rectal immune dysregulation.
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Affiliation(s)
- Gregory R Tapia
- Loyola University Chicago, Stritch School of Medicine, Maywood, Illinois
| | - Tiffany R Glynn
- University of Miami, College of Arts and Sciences, Department of Psychology, Coral, Gables, Florida
| | - Charlene Miller
- University of Minnesota, School of Medicine, Department of Surgery; Minneapolis, Minnesota
| | - Jennifer A Manuzak
- Tulane National Primate Research Center, Tulane University; Division of Immunology, Covington, Los Angeles
| | - Courtney A Broedlow
- University of Minnesota, School of Medicine, Department of Surgery; Minneapolis, Minnesota
| | - Angela Mcgaugh
- University of Miami, Miller School of Medicine, Department of Public Health Sciences, Miami, Florida
| | - Emily M Cherenack
- Duke University, Department of Psychology and Neuroscience, Durham, North Carolina
| | | | - Christian Grov
- City University of New York (CUNY), Graduate School of Public Health and Health, Policy, New York, New York
| | - Samantha E Dilworth
- University of Miami, Miller School of Medicine, Department of Public Health Sciences, Miami, Florida
| | - Robert Parisi
- AIDS Healthcare Foundation, Ft. Lauderdale, Florida, USA
| | | | - Nichole R Klatt
- University of Minnesota, School of Medicine, Department of Surgery; Minneapolis, Minnesota
| | - Adam W Carrico
- University of Miami, Miller School of Medicine, Department of Public Health Sciences, Miami, Florida
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43
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Circumcision as an Intervening Strategy against HIV Acquisition in the Male Genital Tract. Pathogens 2021; 10:pathogens10070806. [PMID: 34201976 PMCID: PMC8308621 DOI: 10.3390/pathogens10070806] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 06/04/2021] [Accepted: 06/24/2021] [Indexed: 12/15/2022] Open
Abstract
Unsafe sex with HIV-infected individuals remains a major route for HIV transmission, and protective strategies, such as the distribution of free condoms and pre-or post-prophylaxis medication, have failed to control the spread of HIV, particularly in resource-limited settings and high HIV prevalence areas. An additional key strategy for HIV prevention is voluntary male circumcision (MC). International health organizations (e.g., the World Health Organization, UNAIDS) have recommended this strategy on a larger scale, however, there is a general lack of public understanding about how MC effectively protects against HIV infection. This review aims to discuss the acquisition of HIV through the male genital tract and explain how and why circumcised men are more protected from HIV infection during sexual activity than uncircumcised men who are at higher risk of HIV acquisition.
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44
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Gustin A, Cromarty R, Schifanella L, Klatt NR. Microbial mismanagement: how inadequate treatments for vaginal dysbiosis drive the HIV epidemic in women. Semin Immunol 2021; 51:101482. [PMID: 34120819 DOI: 10.1016/j.smim.2021.101482] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 05/24/2021] [Indexed: 12/18/2022]
Abstract
Women and girls represent a key population driving new HIV infections and persistence of the HIV pandemic. A key determinant of HIV susceptibility is the composition of the vaginal microbiome, which can influence the local immune cell population, inflammation status, and HIV prevention drug levels. While a low-diversity composition dominated by Lactobacillus crispatus is associated with a decreased risk of HIV acquisition, high diversity environments associated with bacterial vaginosis increase risk of HIV. Given the important role of the vaginal microbiome in determining HIV susceptibility, altering the microbiome towards a Lactobacillus-dominated state is an attractive complementary strategy to reduce HIV incidence rates. Here, we provide an overview of the mechanisms by which the vaginal microbiome may contribute to HIV acquisition risk. Furthermore, we address the advantages and limitations of historical treatments and emerging technologies under investigation to modify the vaginal microbiome, including: antibiotics, bacteriophages, probiotics, topicals, and engineered bacteria. By addressing the current state of vaginal microbiome knowledge and strategies for manipulation, we hope to amplify the growing calls for increased resources and research into vaginal microbial health, which will be essential to accelerating preventative efforts amongst the world's most vulnerable populations.
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Affiliation(s)
- Andrew Gustin
- Department of Global Health, University of Washington, Seattle, WA, USA
| | - Ross Cromarty
- Department of Surgery, Division of Surgical Outcomes and Precision Medicine Research, University of Minnesota, Minneapolis, MN, USA; Department of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Luca Schifanella
- Department of Surgery, Division of Surgical Outcomes and Precision Medicine Research, University of Minnesota, Minneapolis, MN, USA
| | - Nichole R Klatt
- Department of Surgery, Division of Surgical Outcomes and Precision Medicine Research, University of Minnesota, Minneapolis, MN, USA.
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45
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Xu XQ, Zhang B, Guo L, Liu Y, Meng FZ, Wang X, Hu WH, Khan AI, Ho WZ. Exosomes Transport Anti-Human Immunodeficiency Virus Factors from Human Cervical Epithelial Cells to Macrophages. J Innate Immun 2021; 13:269-279. [PMID: 34082434 PMCID: PMC8460989 DOI: 10.1159/000514886] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 01/28/2021] [Indexed: 11/19/2022] Open
Abstract
The female reproductive tract (FRT) is a major site of HIV sexual transmission. As the outermost layer of cells in the FRT, the human cervical epithelial cells (HCEs) have direct contact with HIV or infected cells. Our early work showed that supernatant (SN) from TLR3-activated HCEs contain the antiviral factors that could potently inhibit HIV replication in macrophages. However, it remains to be determined how HCEs transport the anti-HIV factors to macrophages. This follow-up study examined the role of exosomes in HCE-mediated anti-HIV activity. We found that TLR3 activation of HCEs resulted in the release of exosomes that contained multiple IFN-stimulated genes (ISGs: ISG56, OAS1, MxA, and Mx2) and the HIV restriction microRNAs (miR-28, miR-29 family members, miR-125b, miR-150, miR-382, miR-223, miR-20a, and miR-198). The depletion of exosomes from SN of TLR3-activated HCEs diminished HCE-mediated anti-HIV activity in macrophages, indicating that HCE-derived exosomes are responsible for transporting the antiviral molecules to macrophages. These in vitro findings suggest a novel antiviral mechanism by which HCEs participate in the FRT innate immunity against HIV infection. Further in vivo studies are necessary in order to develop an exosome-based delivery system for prevention and treatment of HIV infection through sexual transmission.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Wen-Zhe Ho
- Department of Pathology and Laboratory Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania, USA
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46
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Svanberg C, Ellegård R, Crisci E, Khalid M, Borendal Wodlin N, Svenvik M, Nyström S, Birse K, Burgener A, Shankar EM, Larsson M. Complement-Opsonized HIV Modulates Pathways Involved in Infection of Cervical Mucosal Tissues: A Transcriptomic and Proteomic Study. Front Immunol 2021; 12:625649. [PMID: 34093520 PMCID: PMC8173031 DOI: 10.3389/fimmu.2021.625649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 04/29/2021] [Indexed: 11/21/2022] Open
Abstract
Genital mucosal transmission is the most common route of HIV spread. The initial responses triggered at the site of viral entry are reportedly affected by host factors, especially complement components present at the site, and this will have profound consequences on the outcome and pathogenesis of HIV infection. We studied the initial events associated with host-pathogen interactions by exposing cervical biopsies to free or complement-opsonized HIV. Opsonization resulted in higher rates of HIV acquisition/infection in mucosal tissues and emigrating dendritic cells. Transcriptomic and proteomic data showed a significantly more pathways and higher expression of genes and proteins associated with viral replication and pathways involved in different aspects of viral infection including interferon signaling, cytokine profile and dendritic cell maturation for the opsonized HIV. Moreover, the proteomics data indicate a general suppression by the HIV exposure. This clearly suggests that HIV opsonization alters the initial signaling pathways in the cervical mucosa in a manner that promotes viral establishment and infection. Our findings provide a foundation for further studies of the role these early HIV induced events play in HIV pathogenesis.
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Affiliation(s)
- Cecilia Svanberg
- Division of Molecular Medicine and Virology, Department of Biomedicine and Clinical Sciences, Linköping University, Raleigh, NC, Sweden
| | - Rada Ellegård
- Division of Molecular Medicine and Virology, Department of Biomedicine and Clinical Sciences, Linköping University, Raleigh, NC, Sweden
| | - Elisa Crisci
- Division of Molecular Medicine and Virology, Department of Biomedicine and Clinical Sciences, Linköping University, Raleigh, NC, Sweden
| | - Mohammad Khalid
- Division of Molecular Medicine and Virology, Department of Biomedicine and Clinical Sciences, Linköping University, Raleigh, NC, Sweden
| | | | | | - Sofia Nyström
- Division of Molecular Medicine and Virology, Department of Biomedicine and Clinical Sciences, Linköping University, Raleigh, NC, Sweden.,Department of Clinical Immunology and Transfusion Medicine, and Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Kenzie Birse
- National HIV and Retrovirology Labs, JC Wilt Infectious Disease Research Centre, Public Health Agency of Canada, Winnipeg, MB, Canada
| | - Adam Burgener
- Center for Global Health and Diseases, School of Medicine, Case Western Reserve University, Cleveland, OH, United States
| | - Esaki M Shankar
- Infection Biology, Department of Life Sciences, Central University of Tamil Nadu, Thiruvarur, India
| | - Marie Larsson
- Division of Molecular Medicine and Virology, Department of Biomedicine and Clinical Sciences, Linköping University, Raleigh, NC, Sweden
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47
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Prabhu VM, Padwal V, Velhal S, Salwe S, Nagar V, Patil P, Bandivdekar AH, Patel V. Vaginal Epithelium Transiently Harbours HIV-1 Facilitating Transmission. Front Cell Infect Microbiol 2021; 11:634647. [PMID: 33816339 PMCID: PMC8011497 DOI: 10.3389/fcimb.2021.634647] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Accepted: 02/18/2021] [Indexed: 12/31/2022] Open
Abstract
Vaginal transmission accounts for majority of newly acquired HIV infections worldwide. Initial events that transpire post-viral binding to vaginal epithelium leading to productive infection in the female reproductive tract are not well elucidated. Here, we examined the interaction of HIV-1 with vaginal epithelial cells (VEC) using Vk2/E6E7, an established cell line exhibiting an HIV-binding receptor phenotype (CD4-CCR5-CD206+) similar to primary cells. We observed rapid viral sequestration, as a metabolically active process that was dose-dependent. Sequestered virus demonstrated monophasic decay after 6 hours with a half-life of 22.435 hours, though residual virus was detectable 48 hours' post-exposure. Viral uptake was not followed by successful reverse transcription and thus productive infection in VEC unlike activated PBMCs. Intraepithelial virus was infectious as evidenced by infection in trans of PHA-p stimulated PBMCs on co-culture. Trans-infection efficiency, however, deteriorated with time, concordant with viral retention kinetics, as peak levels of sequestered virus coincided with maximum viral output of co-cultivated PBMCs. Further, blocking lymphocyte receptor function-associated antigen 1 (LFA-1) expressed on PBMCs significantly inhibited trans-infection suggesting that cell-to-cell spread of HIV from epithelium to target cells was LFA-1 mediated. In addition to stimulated PBMCs, we also demonstrated infection in trans of FACS sorted CD4+ T lymphocyte subsets expressing co-receptors CCR5 and CXCR4. These included, for the first time, potentially gut homing CD4+ T cell subsets co-expressing integrin α4β7 and CCR5. Our study thus delineates a hitherto unexplored role for the vaginal epithelium as a transient viral reservoir enabling infection of susceptible cell types.
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Affiliation(s)
- Varsha M Prabhu
- Department of Biochemistry and Virology, National Institute for Research in Reproductive Health, Indian Council of Medical Research, Mumbai, India
| | - Varsha Padwal
- Department of Biochemistry and Virology, National Institute for Research in Reproductive Health, Indian Council of Medical Research, Mumbai, India
| | - Shilpa Velhal
- Department of Biochemistry and Virology, National Institute for Research in Reproductive Health, Indian Council of Medical Research, Mumbai, India
| | - Sukeshani Salwe
- Department of Biochemistry and Virology, National Institute for Research in Reproductive Health, Indian Council of Medical Research, Mumbai, India
| | - Vidya Nagar
- Department of Medicine, The Grant Medical College & Sir J. J. Group of Hospitals, Mumbai, India
| | - Priya Patil
- Department of Medicine, The Grant Medical College & Sir J. J. Group of Hospitals, Mumbai, India
| | - Atmaram H Bandivdekar
- Department of Biochemistry and Virology, National Institute for Research in Reproductive Health, Indian Council of Medical Research, Mumbai, India
| | - Vainav Patel
- Department of Biochemistry and Virology, National Institute for Research in Reproductive Health, Indian Council of Medical Research, Mumbai, India
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48
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Early Colorectal Responses to HIV-1 and Modulation by Antiretroviral Drugs. Vaccines (Basel) 2021; 9:vaccines9030231. [PMID: 33800213 PMCID: PMC8000905 DOI: 10.3390/vaccines9030231] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 02/26/2021] [Accepted: 02/26/2021] [Indexed: 01/01/2023] Open
Abstract
Innate responses during acute HIV infection correlate with disease progression and pathogenesis. However, limited information is available about the events occurring during the first hours of infection in the mucosal sites of transmission. With an ex vivo HIV-1 challenge model of human colorectal tissue we assessed the mucosal responses induced by R5- and X4-tropic HIV-1 isolates in the first 24 h of exposure. Microscopy studies demonstrated virus penetration of up to 39 μm into the lamina propia within 6 h of inoculation. A rapid, 6 h post-challenge, increase in the level of secretion of inflammatory cytokines, chemokines, interferon- γ (IFN-γ), and granulocyte-macrophage colony-stimulating factor (GM-CSF) was observed following exposure to R5- or X4-tropic isolates. This profile persisted at the later time point measured of 24 h. However, exposure to the X4-tropic isolate tested induced greater changes at the proteomic and transcriptomic levels than the R5-tropic. The X4-isolate induced greater levels of CCR5 ligands (RANTES, MIP-1α and MIP-1β) secretion than R5-HIV-1. Potential drugs candidates for colorectal microbicides, including entry, fusion or reverse transcriptase inhibitors demonstrated differential capacity to modulate these responses. Our findings indicate that in colorectal tissue, inflammatory responses and a Th1 cytokine profile are induced in the first 24 h following viral exposure.
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49
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Gillgrass A, Wessels JM, Yang JX, Kaushic C. Advances in Humanized Mouse Models to Improve Understanding of HIV-1 Pathogenesis and Immune Responses. Front Immunol 2021; 11:617516. [PMID: 33746940 PMCID: PMC7973037 DOI: 10.3389/fimmu.2020.617516] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 12/30/2020] [Indexed: 12/15/2022] Open
Abstract
Although antiretroviral therapy has transformed human immunodeficiency virus-type 1 (HIV-1) from a deadly infection into a chronic disease, it does not clear the viral reservoir, leaving HIV-1 as an uncurable infection. Currently, 1.2 million new HIV-1 infections occur globally each year, with little decrease over many years. Therefore, additional research is required to advance the current state of HIV management, find potential therapeutic strategies, and further understand the mechanisms of HIV pathogenesis and prevention strategies. Non-human primates (NHP) have been used extensively in HIV research and have provided critical advances within the field, but there are several issues that limit their use. Humanized mouse (Hu-mouse) models, or immunodeficient mice engrafted with human immune cells and/or tissues, provide a cost-effective and practical approach to create models for HIV research. Hu-mice closely parallel multiple aspects of human HIV infection and disease progression. Here, we highlight how innovations in Hu-mouse models have advanced HIV-1 research in the past decade. We discuss the effect of different background strains of mice, of modifications on the reconstitution of the immune cells, and the pros and cons of different human cells and/or tissue engraftment methods, on the ability to examine HIV-1 infection and immune response. Finally, we consider the newest advances in the Hu-mouse models and their potential to advance research in emerging areas of mucosal infections, understand the role of microbiota and the complex issues in HIV-TB co-infection. These innovations in Hu-mouse models hold the potential to significantly enhance mechanistic research to develop novel strategies for HIV prevention and therapeutics.
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Affiliation(s)
- Amy Gillgrass
- Department of Medicine, McMaster University, Hamilton, ON, Canada
- McMaster Immunology Research Centre, McMaster University, Hamilton, ON, Canada
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON, Canada
| | - Jocelyn M. Wessels
- Department of Obstetrics and Gynecology, McMaster University, Hamilton, ON, Canada
| | - Jack X. Yang
- Department of Medicine, McMaster University, Hamilton, ON, Canada
- McMaster Immunology Research Centre, McMaster University, Hamilton, ON, Canada
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON, Canada
| | - Charu Kaushic
- Department of Medicine, McMaster University, Hamilton, ON, Canada
- McMaster Immunology Research Centre, McMaster University, Hamilton, ON, Canada
- Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON, Canada
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50
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De Vincentis S, Tartaro G, Rochira V, Santi D. HIV and Sexual Dysfunction in Men. J Clin Med 2021; 10:jcm10051088. [PMID: 33807833 PMCID: PMC7961513 DOI: 10.3390/jcm10051088] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 02/22/2021] [Accepted: 03/02/2021] [Indexed: 12/12/2022] Open
Abstract
Sexual issues tend to go unaddressed in human immunodeficiency virus (HIV) management, although overt sexual dysfunctions are more prevalent in people living with HIV than uninfected people. Erectile dysfunction is the most frequent sexual problem, with a prevalence of 30–50% even in men <40 years of age, but other issues such as loss of libido and ejaculatory disorders should not be overlooked. Peculiar factors related to HIV infection (e.g., fear of virus transmission, changes in body image, HIV-related comorbidities, HIV distress and stigma), alongside classical factors non-related to HIV, should be considered when approaching sexual problems in HIV patients. For this reason, the diagnostic and therapeutic workout of sexual dysfunction in the context of HIV requires a multidisciplinary approach, involving specialists in both infectious diseases and sexual medicine. This narrative review presents an overview of current knowledge on sexual dysfunction in HIV men, deepening the factors driving and taking part in these issues, providing advice for the clinical approach, and underlining the importance of caring for sexual health to improve the quality of life of HIV patients.
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Affiliation(s)
- Sara De Vincentis
- Unit of Endocrinology, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Via Giardini 1355, 41126 Modena, Italy; (S.D.V.); (G.T.); (D.S.)
- Unit of Endocrinology, Department of Medical Specialties, Azienda Ospedaliero-Universitaria of Modena, 41126 Modena, Italy
| | - Giulia Tartaro
- Unit of Endocrinology, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Via Giardini 1355, 41126 Modena, Italy; (S.D.V.); (G.T.); (D.S.)
- Unit of Endocrinology, Department of Medical Specialties, Azienda Ospedaliero-Universitaria of Modena, 41126 Modena, Italy
| | - Vincenzo Rochira
- Unit of Endocrinology, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Via Giardini 1355, 41126 Modena, Italy; (S.D.V.); (G.T.); (D.S.)
- Unit of Endocrinology, Department of Medical Specialties, Azienda Ospedaliero-Universitaria of Modena, 41126 Modena, Italy
- Correspondence: ; Tel.: +39-059-396-2453; Fax: +39-059-396-1335
| | - Daniele Santi
- Unit of Endocrinology, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Via Giardini 1355, 41126 Modena, Italy; (S.D.V.); (G.T.); (D.S.)
- Unit of Endocrinology, Department of Medical Specialties, Azienda Ospedaliero-Universitaria of Modena, 41126 Modena, Italy
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