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- W2971377313 abstract "Cryptococcus neoformans, the causative agent of cryptococcosis, causes ~ 181,000 deaths annually, with males having a higher incidence of disease than females (7M:3F). The reason for this sex bias remains unclear. We hypothesized that this disparity was due to biological differences between the male and female immune response.Peripheral blood mononuclear cells (PBMCs) from healthy donors were isolated and infected with C. neoformans ± exogenous testosterone or 17-β-estradiol. C. neoformans, B, T, and NK cell proliferation was quantified by flow cytometry. Cytokine analysis was conducted via protein array or ELISA. Serological testing was conducted to determine previous exposure to C. neoformans.C. neoformans proliferated more in male PBMCs. T cell percentages in both sexes were lower in infected versus uninfected cells. Male PBMCs had lower CD3+, CD4+, and CD8+ T cells percentages during infection compared to females. Cytokine profiles showed differences in uninfected male and female PBMCs, which subsided during infection. Only one donor was sero-negative for prior C. neoformans exposure. There was an effect of estrogen in one dataset.These results suggest that males show an inherent deficit in T cell response during infection, which may contribute to the increased incidence of disease in males." @default.
- W2971377313 created "2019-09-12" @default.
- W2971377313 creator A5016722797 @default.
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- W2971377313 date "2019-09-02" @default.
- W2971377313 modified "2023-10-08" @default.
- W2971377313 title "An inherent T cell deficit in healthy males to C. neoformans infection may begin to explain the sex susceptibility in incidence of cryptococcosis" @default.
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- W2971377313 doi "https://doi.org/10.1186/s13293-019-0258-2" @default.
- W2971377313 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6720413" @default.
- W2971377313 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/31477151" @default.
- W2971377313 hasPublicationYear "2019" @default.
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