HIV Infection and Vaccination

A special issue of Vaccines (ISSN 2076-393X). This special issue belongs to the section "HIV Vaccines".

Deadline for manuscript submissions: closed (30 September 2023) | Viewed by 6414

Special Issue Editors


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Guest Editor
Hospital for Infectious Diseases, Department of Adults' Infectious Diseases, Medical University of Warsaw, Warsaw, Poland
Interests: HIV; infection; HIV immunology; HIV prevention; infectious disease epidemiology
Special Issues, Collections and Topics in MDPI journals

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Co-Guest Editor
Hospital for Infectious Diseases, Department of Adults' Infectious Diseases, Medical University of Warsaw, Warsaw, Poland
Interests: HIV infection; AIDS; vaccination; infectious diseases; meningitis; vertical infections

Special Issue Information

Dear Colleagues,

Patients with HIV infection, even while on effective antiretroviral treatment, are subject to substantial alteration of immunological response, as well as activation of inflammation processes. This can naturally result in substantial difference in the effectiveness and safety of both passive and active immunization as compared to non-HIV infected persons. At the same time, people living with HIV are prone to many infections, which reflects both the immune deficiency and exposure to specific health risks, e.g., HPV and hepatitis.

Moreover, the majority of people living with HIV live in regions with epidemics of preventable diseases, i.e., Africa, South and East Asia, and South America. Despite this, most clinical trials of vaccines are conducted in high-income countries and/or do not accept people living with HIV.

Many factors can influence the acceptance of vaccines and compliance to immunization schedule, such as level of knowledge, socioeconomical status, and personal beliefs. People living with HIV have demonstrated, especially in recent times with the development of new COVID-19 vaccines, a great understanding and interest in participating in vaccination programs, vaccine trials, and prevention strategies. Lessons learned from this advocacy could inform future public health campaigns popularizing vaccines.

Finally, it has been suggested by some studies that various vaccines, especially ones based on adenovirus vectors, might increase the risk of acquiring HIV. Such preliminary conclusions may cause reluctance toward vaccination among persons not infected with HIV, while evidence in this area is still lacking.

This Special Issue of Vaccines aims to address the abovementioned needs and improve the knowledge of immunization strategies for people living with HIV. Potential topics include but are not limited to: 

  • Antibody and human cellular immune cell responses to active and passive immunization among Hpeople living with HIV;
  • Factors related to acceptance of vaccines and other immunization strategies among people living with HIV;
  • Dynamics of antibody response to active and passive immunization in people living with HIV;
  • Discoveries potentially leading to the development of HIV vaccine and cure;
  • Vaccines and the risk of HIV acquisition. 

Prof. Dr. Justyna Dominika Kowalska
Dr. Carlo Bieńkowski
Guest Editors

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Keywords

  • HIV infection
  • HIV immunology
  • HIV prevention
  • infectious diseases
  • vaccine development

Published Papers (3 papers)

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11 pages, 432 KiB  
Article
Effectiveness and Safety of SARS-CoV-2 Vaccination in HIV-Infected Patients—Real-World Study
by Monika Bociąga-Jasik, Martyna Lara, Aleksandra Raczyńska, Barbara Wizner, Stanisław Polański, Ewa Mlicka-Kowalczyk, Aleksander Garlicki and Marek Sanak
Vaccines 2023, 11(5), 893; https://doi.org/10.3390/vaccines11050893 - 24 Apr 2023
Cited by 3 | Viewed by 2244
Abstract
The development of COVID-19 vaccines has been a triumph of biomedical research. However, there are still challenges, including assessment of their immunogenicity in high-risk populations, including PLWH. In the present study, we enrolled 121 PLWH aged >18 years, that were vaccinated against COVID-19 [...] Read more.
The development of COVID-19 vaccines has been a triumph of biomedical research. However, there are still challenges, including assessment of their immunogenicity in high-risk populations, including PLWH. In the present study, we enrolled 121 PLWH aged >18 years, that were vaccinated against COVID-19 in the Polish National Vaccination Program. Patients filled in questionnaires regarding the side effects of vaccination. Epidemiological, clinical, and laboratory data were collected. The efficacy of COVID-19 vaccines was evaluated with an ELISA that detects IgG antibodies using a recombinant S1 viral protein antigen. The interferon-gamma release assay (IGRA) was applied to quantitate interferon-gamma (IFN-γ) to assess cellular immunity to SARS-CoV-2. In total, 87 patients (71.9%) received mRNA vaccines (BNT162b2-76 (59.5%), mRNA-1273- 11 (9.1%)). A total of 34 patients (28.09%) were vaccinated with vector-based vaccines (ChAdOx Vaxzevria- 20 (16.52%), Ad26.COV2.S- 14 (11.6%)). A total of 95 (78.5%) of all vaccinated patients developed a protective level of IgG antibodies. Only eight PLWH (6.6%) did not develop cellular immune response. There were six patients (4.95%) that did not develop a cellular and humoral response. Analysis of variance proved that the best humoral and cellular response related to the administration of the mRNA-1273 vaccine. COVID-19 vaccines were found to be immunogenic and safe in PLWH. Vaccination with mRNA vaccines were related to better humoral and cellular responses. Full article
(This article belongs to the Special Issue HIV Infection and Vaccination)
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14 pages, 1512 KiB  
Article
The Combination of an mRNA Immunogen, a TLR7 Agonist and a PD1 Blocking Agent Enhances In-Vitro HIV T-Cell Immune Responses
by Lorena Usero, Lorna Leal, Carmen Elena Gómez, Laia Miralles, Elena Aurrecoechea, Ignasi Esteban, Berta Torres, Alexy Inciarte, Beatriz Perdiguero, Mariano Esteban, Felipe García and Montserrat Plana
Vaccines 2023, 11(2), 286; https://doi.org/10.3390/vaccines11020286 - 28 Jan 2023
Cited by 2 | Viewed by 2149
Abstract
The development of new strategies to achieve a functional cure for HIV remains a priority. We tested a novel HIV therapeutic vaccine using unmodified mRNA (TMEP-B) and mRNA modified by 1-methyl-3′-pseudouridylyl (TMEP-Bmod) expressing both a multiepitopic sequences from Gag, Pol, and Nef proteins, [...] Read more.
The development of new strategies to achieve a functional cure for HIV remains a priority. We tested a novel HIV therapeutic vaccine using unmodified mRNA (TMEP-B) and mRNA modified by 1-methyl-3′-pseudouridylyl (TMEP-Bmod) expressing both a multiepitopic sequences from Gag, Pol, and Nef proteins, including different CD4 and CD8 T-cell epitopes functionally associated with HIV control in transfected monocyte-derived dendritic cells (MDDCs) obtained from HIV infected patients. In vitro assays were used to test the mRNAs alone and in combination with immunomodulator agents, such as the TLR-7 agonist Vesatolimod and the PD-1 antagonist Nivolumab to try to improve HIV-specific cellular immune responses. Combining the mRNAs with the immunomodulators enhanced HIV-specific T-cell responses, together with the secretion of IFNγ, IP10, MIP-1α, and MIP-1β, which are fundamental mediators of viral control. Our data suggest that the mRNA vaccine prototypes TMEP-B and TMEP-Bmod, when combined with Vesatolimod and/or Nivolumab, could achieve functional cure for patients with HIV. Full article
(This article belongs to the Special Issue HIV Infection and Vaccination)
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8 pages, 251 KiB  
Brief Report
The Clinical Effectiveness and Safety of Vaccinations against COVID-19 in HIV-Positive Patients: Data from Observational Study in Poland
by Carlo Bieńkowski, Agata Skrzat-Klapaczyńska, Ewa Firląg-Burkacka, Andrzej Horban and Justyna D. Kowalska
Vaccines 2023, 11(3), 514; https://doi.org/10.3390/vaccines11030514 - 22 Feb 2023
Cited by 6 | Viewed by 1408
Abstract
People living with HIV (PLWH) are a heterogeneous group of immunocompromised persons, yet underrepresented in randomized clinical trials leading to vaccination registration. Detectable HIV viral load and having chronic comorbidities may increase the risk of severe COVID-19 outcomes in this group of patients. [...] Read more.
People living with HIV (PLWH) are a heterogeneous group of immunocompromised persons, yet underrepresented in randomized clinical trials leading to vaccination registration. Detectable HIV viral load and having chronic comorbidities may increase the risk of severe COVID-19 outcomes in this group of patients. We aimed to assess the efficacy and safety of vaccinations against COVID-19 in PLWH. Materials and Methods: We performed a retrospective analysis of medical records of HIV-positive individuals routinely followed up between 1 January 2021 and 30 April 2022 that were at the HIV Outpatient Clinic in Warsaw. The analysis included data on the type and date of administration of subsequent doses of COVID-19 vaccination, adverse vaccine reactions, and the history of SARS-CoV-2 infection. Results: In total, 217 patients were included in the analysis, with a median age of 43 years (IQR: 35.5–51.5 years) and median CD4+ count of 591 cells/uL (IQR: 459.5–745.0 cells/uL). Most of the patients were male (191/217, 88.0%) and were vaccinated with the BNT162b2 vaccine (143/217, 65.9%). None of the patients diagnosed with COVID-19 required hospitalization. Vaccine adverse events (VAE) mostly occurred after the 1st dose (in 33/217 (15.2%)), and none of them were severe or required medical care. Conclusions: In our cohort of patients, vaccination against COVID-19 proved to be safe and effective against a severe course of the disease among people living with HIV. However, vaccination, to a lesser degree, protects against mild SARS-CoV-2 infection. Longer observations are required in order to assess the sustainability of protection against severe COVID-19 in this group of patients. Full article
(This article belongs to the Special Issue HIV Infection and Vaccination)
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