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Two Methods for Establishing Primary Human Endometrial Stromal Cells from Hysterectomy Specimens
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B Cell Lineage in the Human Endometrium: Physiological and Pathological Implications.

Kotaro Kitaya1

  • 1Infertility Center, Iryouhoujin Kouseikai Mihara Hospital, 6-8 Kamikatsura Miyanogo-cho, Nishikyo-ku, Kyoto 615-8227, Japan.

Cells
|May 13, 2025
PubMed
Summary

B cells are immune cells crucial for antibody production and fighting infections. This review explores their understudied role in the human endometrium and their implications in reproductive health disorders.

Keywords:
B cellschronic endometritisendometriosisendometriuminfertilityplasma cells

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Area of Science:

  • Immunology
  • Reproductive Biology

Background:

  • B cells are key players in humoral immunity, differentiating into antibody-producing plasmacytes.
  • Antibodies neutralize pathogens and activate immune responses like complement activation and opsonization.
  • The human endometrium harbors a minority of B cells, making them historically understudied.

Purpose of the Study:

  • To review B cell lymphopoiesis, maturation, commitment, and survival.
  • To elucidate the physiological and pathological roles of B cells in the human endometrium.
  • To highlight the significance of endometrial B cells in female reproductive tract disorders.

Main Methods:

  • Literature review of B cell biology and immunology.
  • Analysis of existing research on human endometrial lymphocytes.
  • Synthesis of information on B cell functions in reproductive tissues.

Main Results:

  • B cells are present in the human cycling endometrium, though in low numbers.
  • Disorders like chronic endometritis and endometriosis suggest a role for endometrial B cells.
  • Further research is needed to fully understand their specific functions and contributions.

Conclusions:

  • Endometrial B cells, despite being a minority, are important for reproductive health.
  • Understanding their role is crucial for diagnosing and treating gynecological conditions.
  • Future studies should focus on the specific functions and immune responses mediated by B cells in the endometrium.