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Published on: June 23, 2015
Causal association analysis between 731 immune cells and cystitis: A 2-sample, bidirectional Mendelian randomization
Peiqin Zhan1, Junhao Chen1, Junxian Zhao2
1Department of Urology, The Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan Province, China.
Medicine
|May 30, 2026
Summary
This study investigated immune cells and cystitis using genetic data. Certain immune cell levels were found to either suppress or promote cystitis, revealing a bidirectional relationship.
Area of Science:
- Immunology
- Genetics
- Urology
Background:
- The causal link between immune cells and cystitis is not well understood.
- Investigating this relationship is crucial for understanding cystitis pathogenesis.
Purpose of the Study:
- To explore the causal relationships between 731 immune cell types and cystitis.
- To identify specific immune cells that influence cystitis occurrence.
Main Methods:
- Genome-wide association studies (GWAS) were used to identify genetic instruments for immune cells.
- Bidirectional Mendelian randomization (MR) analysis was performed using UK Biobank data.
- Inverse-variance weighted (IVW) method was the primary MR analysis technique, with pleiotropy and heterogeneity tests.
Main Results:
- Twelve immune cell types showed a significant association with cystitis.
- Increased levels of specific B cells, T cells, and monocytes were found to suppress cystitis.
- Elevated levels of other B cells, T cells, and regulatory T cells were associated with promoting cystitis.
- Reverse MR analysis indicated that cystitis affects the counts of certain immune cells.
Conclusions:
- A bidirectional causal relationship exists between immune cells and cystitis.
- Findings provide insights into potential mechanisms and future therapeutic strategies for cystitis.
