Immune imprinting: The persisting influence of the first antigenic encounter with rapidly evolving viruses

Autor: Mariam Maltseva, Alexa Keeshan, Curtis Cooper, Marc-André Langlois
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Human Vaccines & Immunotherapeutics, Vol 20, Iss 1 (2024)
Druh dokumentu: article
ISSN: 21645515
2164-554X
2164-5515
DOI: 10.1080/21645515.2024.2384192
Popis: Immune imprinting is a phenomenon that stems from the fundamentals of immunological memory. Upon recurrent exposures to an evolving pathogen, the immune system must weigh the benefits of rapidly recalling established antibody repertoires with greater affinity to the initial variant or invest additional time and energy in producing de novo responses specific to the emerging variant. In this review, we delve into the mechanistic complexities of immune imprinting and its role in shaping subsequent immune responses, both de novo and recall, against rapidly evolving respiratory viruses such as influenza and coronaviruses. By exploring the duality of immune imprinting, we examine its potential to both enhance or hinder immune protection against disease, while emphasizing the role of host and viral factors. Finally, we explore how different vaccine platforms may affect immune imprinting and comment on vaccine strategies that can favor de novo variant-specific antibody responses.
Databáze: Directory of Open Access Journals