Biological sex, not reproductive cycle, influences peripheral blood immune cell prevalence in mice.


Journal

The Journal of physiology
ISSN: 1469-7793
Titre abrégé: J Physiol
Pays: England
ID NLM: 0266262

Informations de publication

Date de publication:
04 2021
Historique:
received: 14 08 2020
accepted: 03 12 2020
pubmed: 19 1 2021
medline: 21 4 2021
entrez: 18 1 2021
Statut: ppublish

Résumé

Traditionally the female sex, compared with the male sex, has been perceived as having greater variability in many physiological traits, including within the immune system. We investigated effects of biological sex and the female reproductive cycle on numbers of circulating leukocytes in C57BL/6J mice. We show that biological sex, but not female reproductive cyclicity, has a significant effect on peripheral blood immune cell prevalence and variability, and that sex differences were not consistent amongst common inbred laboratory mouse strains. We found that male C57BL/6J mice, compared with female mice, have greater variability in peripheral blood immunophenotype, and that this was influenced by body weight. We created summary tables for researchers to facilitate experiment planning and sample size calculations for peripheral immune cells that consider the effects of biological sex. Immunophenotyping (i.e. quantifying the number and types of circulating leukocytes) is used to characterize immune changes during health and disease, and in response to pharmacological and other interventions. Despite the importance of biological sex in immune function, there is considerable uncertainty amongst researchers as to the extent to which biological sex or the female reproductive cycle influence blood immunophenotype. We quantified circulating leukocytes by multicolour flow cytometry in young C57BL/6J mice and assessed the effects of the reproductive cycle, biological sex, and other experimental and biological factors on data variability. We found that there are no significant effects of the female reproductive cycle on the prevalence of peripheral blood B cells, NK cells, CD4

Identifiants

pubmed: 33458827
doi: 10.1113/JP280637
doi:

Types de publication

Journal Article Research Support, Non-U.S. Gov't

Langues

eng

Sous-ensembles de citation

IM

Pagination

2169-2195

Subventions

Organisme : CIHR
Pays : Canada

Commentaires et corrections

Type : CommentIn

Informations de copyright

© 2021 The Authors. The Journal of Physiology © 2021 The Physiological Society.

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Auteurs

Jessica A Breznik (JA)

McMaster Immunology Research Centre, McMaster University, Hamilton, Ontario, Canada.
Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Ontario, Canada.

Christian Schulz (C)

McMaster Immunology Research Centre, McMaster University, Hamilton, Ontario, Canada.
Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Ontario, Canada.

Jinhui Ma (J)

Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada.

Deborah M Sloboda (DM)

Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada.
Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, Ontario, Canada.
Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada.

Dawn M E Bowdish (DME)

McMaster Immunology Research Centre, McMaster University, Hamilton, Ontario, Canada.
Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Ontario, Canada.

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