141862 - sex differential impact.pdf (703.01 kB)
Sex-differential impact of human cytomegalovirus infection on in vitro reactivity to toll-like receptor 2, 4 and 7/8 stimulation in Gambian infants
journal contribution
posted on 2023-05-20, 19:28 authored by Cox, M, Adetifa, JU, Noho-Konteh, F, Sanyang, LC, Drammeh, A, Plebanski, M, Whittle, HC, Rowland-Jones, SL, Iain RobertsonIain Robertson, Katie FlanaganKatie FlanaganHuman cytomegalovirus (HCMV) infection rates approach 100% by the first year of life in low-income countries. It is not known if this drives changes to innate immunity in early life and thereby altered immune reactivity to infections and vaccines. Given the panoply of sex differences in immunity, it is feasible that any immunological effects of HCMV would differ in males and females. We analysed ex vivo innate cytokine responses to a panel of toll-like receptor (TLR) ligands in 108 nine-month-old Gambian males and females participating in a vaccine trial. We found evidence that HCMV suppressed reactivity to TLR2 and TLR7/8 stimulation in females but not males. This is likely to contribute to sex differences in responses to infections and vaccines in early life and has implications for the development of TLR ligands as vaccine adjuvants. Development of an effective HCMV vaccine would be able to circumvent some of these potentially negative effects of HCMV infection in childhood.
History
Publication title
VaccinesVolume
8Pagination
1-16ISSN
2076-393XDepartment/School
School of Health SciencesPublisher
MDPI AGPlace of publication
SwitzerlandRights statement
Copyright 2020 The Authors. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/Repository Status
- Open