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Mast cell distribution and prevalence in the murine urinary bladder
Jessica Smith1, Jonathan Kah Huat Tan1, Christian Moro2
1Clem Jones Centre for Regenerative Medicine, Bond University, Queensland, 4226, Australia.
BMC Urology
|March 5, 2024
Summary
Mast cells are present in the urinary bladder, primarily in the lamina propria and detrusor muscle layers. Their proximity to vasculature suggests a role in bladder pathologies like cystitis.
Area of Science:
- Urology
- Immunology
- Cell Biology
Background:
- Mast cells are implicated in urinary bladder disorders.
- Mast cell distribution in bladder tissue is not well-defined.
- Understanding mast cell distribution is crucial for bladder pathology research.
Purpose of the Study:
- To characterize mast cell prevalence and distribution in the urinary bladder.
- To investigate mast cell density across different bladder layers.
- To determine mast cell proximity to vasculature.
Main Methods:
- Flow cytometry used to quantify mast cell prevalence (CD45, CD117, FcɛRIα markers).
- Toluidine blue staining assessed mast cell distribution, size, and vascular proximity.
- Statistical analysis (ANOVA) evaluated mast cell density and size variations.
Main Results:
- Mast cells constitute <4% of live leukocytes in the urinary bladder.
- Mast cells are most abundant in the lamina propria and detrusor muscle layers.
- 20.89% of mast cells are located near vasculature, potentially influencing bladder function.
Conclusions:
- This study establishes a baseline for mast cell prevalence and distribution in the urinary bladder.
- Findings highlight the potential role of mast cells in bladder pathologies.
- Further research can explore mast cell function in conditions like cystitis and overactive bladder.
