PMID- 37946751 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231113 IS - 2689-2812 (Electronic) IS - 2689-2812 (Linking) VI - 5 IP - 4 DP - 2023 TI - Designing Anti-Viral Vaccines that Harness Intrastructural Help from Prior BCG Vaccination. PG - 97-102 LID - 10.33696/immunology.5.174 [doi] AB - Vaccines are among the most effective tools for combatting the impact and spread of infectious diseases. However, the effectiveness of a vaccine can be diminished by vaccine inequality, particularly during severe outbreaks of infectious diseases in resource-poor areas. As seen in many developing countries that lack adequate healthcare infrastructure and economic resources, the acquisition and distribution of potentially life-saving vaccines may be limited, leading to prolonged suffering and increased deaths. To improve vaccine equity, vaccine design must take into consideration the logistics needed to implement a successful vaccination drive, particularly among the most vulnerable populations. In the manuscript titled "Exploiting Pre-Existing CD4(+) T Cell Help from Bacille Calmette-Guerin Vaccination to Improve Antiviral Antibody Responses" published in the Journal of Immunology, the authors designed a recombinant subunit vaccine against the Ebola virus (EBOV) glycoprotein that can harness the pre-existing T helper cells from prior BCG vaccination. As a recombinant subunit vaccine adjuvanted with alum, this approach has many features that make it well suited for the design of vaccines for developing nations, such as relative ease of production, scalability, and distribution. In addition, the high prevalence of BCG immunization and natural immunity to mycobacteria in many regions of the world endow such vaccines with features that should increase potency and efficacy among populations residing in such regions. As a result of using the helper activity of pre-existing BCG-specific Th cells to drive antibody responses, a lower vaccine dose is needed, which is a major advantage for vaccine manufacture. Furthermore, the BCG-specific Th cells also stimulate immunoglobulin class switching to IgG isotypes that have strong affinities for activating Fc-gamma receptors (FcgammaRs). Taken together, we propose that the design of subunit vaccines with intrastructural help from BCG-specific Th cells can improve protection against viral infection and represents a vaccine design that can be generally adapted to other emerging viral pathogens for the control and prevention of infection in many developing countries. FAU - Ng, Tony W AU - Ng TW AD - Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY10461, USA. FAU - Porcelli, Steven A AU - Porcelli SA AD - Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY10461, USA. AD - Department of Medicine, Albert Einstein College of Medicine, Bronx, NY 10461, USA. LA - eng GR - R01 AI137344/AI/NIAID NIH HHS/United States PT - Journal Article PL - United States TA - J Cell Immunol JT - Journal of cellular immunology JID - 101757237 PMC - PMC10635577 MID - NIHMS1939518 OTO - NOTNLM OT - Antibody OT - BCG OT - Intrastructural help OT - Linked recognition OT - Th cells OT - Vaccine OT - Virus EDAT- 2023/11/10 06:45 MHDA- 2023/11/10 06:46 PMCR- 2023/11/09 CRDT- 2023/11/10 03:55 PHST- 2023/11/10 06:46 [medline] PHST- 2023/11/10 06:45 [pubmed] PHST- 2023/11/10 03:55 [entrez] PHST- 2023/11/09 00:00 [pmc-release] AID - 10.33696/immunology.5.174 [doi] PST - ppublish SO - J Cell Immunol. 2023;5(4):97-102. doi: 10.33696/immunology.5.174.