Safety and efficacy of toll-like receptor agonists as therapeutic agents and vaccine adjuvants for infectious diseases in animals: a systematic review

Introduction: Strengthening global health security relies on adequate protection against infectious diseases through vaccination and treatment. Toll-like receptor (TLR) agonists exhibit properties that can enhance immune responses, making them potential therapeutic agents or vaccine adjuvants. Meth...

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Autores principales: Oboge, Harriet, Riitho, V., Nyamai, M., Omondi, G.P., Lacasta, Anna, Githaka, Naftaly W., Nene, Vishvanath, Aboge, G., Thumbi, S.M.
Formato: Journal Article
Lenguaje:Inglés
Publicado: Frontiers Media 2024
Materias:
Acceso en línea:https://hdl.handle.net/10568/152253
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author Oboge, Harriet
Riitho, V.
Nyamai, M.
Omondi, G.P.
Lacasta, Anna
Githaka, Naftaly W.
Nene, Vishvanath
Aboge, G.
Thumbi, S.M.
author_browse Aboge, G.
Githaka, Naftaly W.
Lacasta, Anna
Nene, Vishvanath
Nyamai, M.
Oboge, Harriet
Omondi, G.P.
Riitho, V.
Thumbi, S.M.
author_facet Oboge, Harriet
Riitho, V.
Nyamai, M.
Omondi, G.P.
Lacasta, Anna
Githaka, Naftaly W.
Nene, Vishvanath
Aboge, G.
Thumbi, S.M.
author_sort Oboge, Harriet
collection Repository of Agricultural Research Outputs (CGSpace)
description Introduction: Strengthening global health security relies on adequate protection against infectious diseases through vaccination and treatment. Toll-like receptor (TLR) agonists exhibit properties that can enhance immune responses, making them potential therapeutic agents or vaccine adjuvants. Methods: We conducted an extensive systematic review to assess the efficacy of TLR agonists as therapeutic agents or vaccine adjuvants for infectious diseases and their safety profile in animals, excluding rodents and cold-blooded animals. We collected qualitative and available quantitative data on the efficacy and safety outcomes of TLR agonists and employed descriptive analysis to summarize the outcomes. Results: Among 653 screened studies, 51 met the inclusion criteria. In this review, 82% (42/51) of the studies used TLR agonists as adjuvants, while 18% (9/51) applied TLR agonist as therapeutic agents. The predominant TLR agonists utilized in animals against infectious diseases was CpG ODN, acting as a TLR9 agonist in mammals, and TLR21 agonists in chickens. In 90% (46/51) of the studies, TLR agonists were found effective in stimulating specific and robust humoral and cellular immune responses, thereby enhancing the efficacy of vaccines or therapeutics against infectious diseases in animals. Safety outcomes were assessed in 8% (4/51) of the studies, with one reporting adverse effects. Discussion: Although TLR agonists are efficacious in enhancing immune responses and the protective efficacy of vaccines or therapeutic agents against infectious diseases in animals, a thorough evaluation of their safety is imperative to in-form future clinical applications in animal studies. Systematic review registration: https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=323122.
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spelling CGSpace1522532025-12-08T10:29:22Z Safety and efficacy of toll-like receptor agonists as therapeutic agents and vaccine adjuvants for infectious diseases in animals: a systematic review Oboge, Harriet Riitho, V. Nyamai, M. Omondi, G.P. Lacasta, Anna Githaka, Naftaly W. Nene, Vishvanath Aboge, G. Thumbi, S.M. animal diseases vaccines Introduction: Strengthening global health security relies on adequate protection against infectious diseases through vaccination and treatment. Toll-like receptor (TLR) agonists exhibit properties that can enhance immune responses, making them potential therapeutic agents or vaccine adjuvants. Methods: We conducted an extensive systematic review to assess the efficacy of TLR agonists as therapeutic agents or vaccine adjuvants for infectious diseases and their safety profile in animals, excluding rodents and cold-blooded animals. We collected qualitative and available quantitative data on the efficacy and safety outcomes of TLR agonists and employed descriptive analysis to summarize the outcomes. Results: Among 653 screened studies, 51 met the inclusion criteria. In this review, 82% (42/51) of the studies used TLR agonists as adjuvants, while 18% (9/51) applied TLR agonist as therapeutic agents. The predominant TLR agonists utilized in animals against infectious diseases was CpG ODN, acting as a TLR9 agonist in mammals, and TLR21 agonists in chickens. In 90% (46/51) of the studies, TLR agonists were found effective in stimulating specific and robust humoral and cellular immune responses, thereby enhancing the efficacy of vaccines or therapeutics against infectious diseases in animals. Safety outcomes were assessed in 8% (4/51) of the studies, with one reporting adverse effects. Discussion: Although TLR agonists are efficacious in enhancing immune responses and the protective efficacy of vaccines or therapeutic agents against infectious diseases in animals, a thorough evaluation of their safety is imperative to in-form future clinical applications in animal studies. Systematic review registration: https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=323122. 2024-09-17 2024-09-17T13:27:09Z 2024-09-17T13:27:09Z Journal Article https://hdl.handle.net/10568/152253 en Open Access Frontiers Media Oboge, H., Riitho, V., Nyamai, M., Omondi, G.P., Lacasta, A., Githaka, N., Nene, V., Aboge, G. and Thumbi, S.M. 2024. Safety and efficacy of toll-like receptor agonists as therapeutic agents and vaccine adjuvants for infectious diseases in animals: a systematic review. Frontiers in Veterinary Science 11: 1428713.
spellingShingle animal diseases
vaccines
Oboge, Harriet
Riitho, V.
Nyamai, M.
Omondi, G.P.
Lacasta, Anna
Githaka, Naftaly W.
Nene, Vishvanath
Aboge, G.
Thumbi, S.M.
Safety and efficacy of toll-like receptor agonists as therapeutic agents and vaccine adjuvants for infectious diseases in animals: a systematic review
title Safety and efficacy of toll-like receptor agonists as therapeutic agents and vaccine adjuvants for infectious diseases in animals: a systematic review
title_full Safety and efficacy of toll-like receptor agonists as therapeutic agents and vaccine adjuvants for infectious diseases in animals: a systematic review
title_fullStr Safety and efficacy of toll-like receptor agonists as therapeutic agents and vaccine adjuvants for infectious diseases in animals: a systematic review
title_full_unstemmed Safety and efficacy of toll-like receptor agonists as therapeutic agents and vaccine adjuvants for infectious diseases in animals: a systematic review
title_short Safety and efficacy of toll-like receptor agonists as therapeutic agents and vaccine adjuvants for infectious diseases in animals: a systematic review
title_sort safety and efficacy of toll like receptor agonists as therapeutic agents and vaccine adjuvants for infectious diseases in animals a systematic review
topic animal diseases
vaccines
url https://hdl.handle.net/10568/152253
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