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Changes in the peritoneal interstitium and their effect on peritoneal transport.
1Nephrology Unit, University of Rochester, New York, USA.
Summary
Transperitoneal transport involves diffusion and convection across microvessels and interstitium into the peritoneal cavity. Inflammation triggers macrophages and cytokines, initiating leukocyte migration into the cavity.
Area of Science:
- Physiology
- Cell Biology
- Immunology
Background:
- Transperitoneal transport is a complex physiological process involving diffusion and convection.
- This process occurs across blood microvessels, tissue interstitium, and the peritoneum.
- Understanding this transport is crucial for peritoneal dialysis and inflammatory conditions.
Purpose of the Study:
- To review the normal physiology of transperitoneal transport.
- To summarize inflammatory responses affecting transperitoneal transport.
- To elucidate the cellular and molecular mechanisms involved.
Main Methods:
- Review of existing literature on transperitoneal transport physiology.
- Analysis of inflammatory cascades involving macrophages, cytokines, mesothelial cells, and fibroblasts.
- Deduction and hypothesis of in vivo events based on in vitro models.
Main Results:
- Inflammation initiates with macrophage stimulation and cytokine release.
- Cytokines induce mesothelial cells and fibroblasts to secrete mediators.
- These mediators orchestrate leukocyte migration from blood vessels into the peritoneal cavity.
Conclusions:
- Inflammation significantly alters transperitoneal transport dynamics.
- Leukocyte migration is a key event in the inflammatory response within the peritoneal cavity.
- Further in vivo studies are needed to fully understand these complex processes.