What question did this study set out to answer?

To determine the impact of herpes simplex virus 2 (HSV-2) seropositivity and episodic viral shedding on the spatial distribution and activation of immune cells in the cervicovaginal mucosa.

June 27, 2025Open Access

Genital herpes shedding episodes associate with alterations in the spatial organization and activation of mucosal immune cells

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Authors

FMFinn MacLeanFred Hutch Cancer Center RZRachael M. ZemekThe Kids Research Institute Australia ATAdino Tesfahun TsegayeUniversity of Washington

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Implication

Observational study reveals mucosal immune cell reorganization during HSV-2 shedding in human genital tissue, suggesting dual activating and regulatory programs maintain epithelial homeostasis.

Key Points

To determine the impact of herpes simplex virus 2 (HSV-2) seropositivity and episodic viral shedding on the spatial distribution and activation of immune cells in the cervicovaginal mucosa.
Evaluated cervicovaginal tissue biopsies and matched blood specimens from 232 HSV-2 seropositive and seronegative participants.
Assessed active genital HSV-2 shedding at the time of mucosal biopsy.
Mapped immune cell phenotypes, soluble factors, and localized gene expression using flow cytometry, immunofluorescent imaging, and spatial transcriptomics.
HSV-2 seropositivity in the absence of active shedding produced minimal alterations in circulating or cervicovaginal T cell phenotypes.
Active HSV-2 shedding episodes associated with significant spatial reorganization and epithelial mobilization of T cells, macrophages, and dendritic cells.
Mucosal immune cells during active shedding simultaneously expressed cytotoxic, inflammatory, and immunoregulatory genes, reflecting heightened local surveillance coupled with tissue-protective pathways.

Cite This Study

MacLean et al. (2025) studied this question.

synapsesocial.com/papers/6a95916ed33c5efb307d172b https://doi.org/10.1101/2025.06.24.661157

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Implication

Observational study reveals mucosal immune cell reorganization during HSV-2 shedding in human genital tissue, suggesting dual activating and regulatory programs maintain epithelial homeostasis.

Genital herpes shedding episodes associate with alterations in the spatial organization and activation of mucosal immune cells

Discussion

Member takes

Implication

Key Points

Cite This Study

Genital herpes shedding episodes associate with alterations in the spatial organization and activation of mucosal immune cells

Discussion

Member takes

Implication

Key Points

Cite This Study

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