Related Experiment Video
Updated: Oct 22, 2025
07:46
Author Spotlight: Advancing Reproductive Immunology with a Protocol for the Quantitative Evaluation of Endometrial Immune Cells
Published on: October 13, 2023
1.5K
B Cell Subset Analysis and Gene Expression Characterization in Mid-Luteal Endometrium
Mengni Shen1, Tim Child1,2, Monica Mittal3
1Nuffield Department of Women's and Reproductive Health, L3 Women's Centre, John Radcliffe Hospital, University of Oxford, Oxford, United Kingdom.
Frontiers in Cell and Developmental Biology
|August 27, 2021
Summary
Human endometrial immune cells include B cells, which show an activated phenotype and potential for IL-10 production. Their presence suggests active roles in the uterine environment, potentially impacting pregnancy establishment.
Area of Science:
- Immunology
- Reproductive Biology
- Cell Biology
Background:
- The human endometrium hosts diverse immune cells crucial for immunity and reproduction.
- B cells are vital for adaptive and mucosal immunity but remain uncharacterized in the endometrium.
Purpose of the Study:
- To characterize B cells within the human mid-luteal endometrium.
- To investigate the phenotype and functional capacity of endometrial B cells.
Main Methods:
- Analysis of mid-luteal endometrial biopsies.
- Flow cytometry to identify and phenotype immune cells.
- Assessment of cytokine production capacity.
Main Results:
- B cells constitute 1-5% of endometrial immune cells, primarily naïve or memory types.
- Endometrial B cells exhibit an activated phenotype (CD69, HLA-DR, CD74, CD83) and IL-10 production.
- Presence of T follicular helper-like and germinal center B cells suggests local B cell activity.
Conclusions:
- Endometrial B cells are phenotypically distinct from circulating B cells.
- These cells possess an activated profile and cytokine-producing capacity.
- The endometrium may support germinal center reactions involving B cells, influencing reproductive processes.
