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Isolating And Immunostaining Lymphocytes and Dendritic Cells from Murine Peyer's Patches
Published on: March 17, 2013
Post-mortem Peyer's patches: their potential application in forensic medicine
Biagio Solarino1, Giancarlo Di Vella, Thea Magrone
1Section of Legal Medicine, Department of Internal Medicine and Public Medicine, University of Bari, Bari, Italy. bisola@tin.it
Immunopharmacology and Immunotoxicology
|October 31, 2009
Summary
Post-mortem Peyer
Area of Science:
- Immunology
- Forensic Pathology
- Cytokine Research
Background:
- Pro-inflammatory mediators are crucial for immune responses but are regulated by anti-inflammatory cytokines to maintain homeostasis.
- Circulating cytokine levels have forensic importance, yet post-mortem studies on mucosa-associated lymphoid tissue are limited.
- Peyer's patches (PP) are key immunological sites within the gut-associated lymphoid tissue.
Purpose of the Study:
- To investigate the post-mortem immune response in Peyer's patches (PP).
- To analyze cytokine release from PP cells in individuals deceased from natural versus traumatic causes.
Main Methods:
- Analysis of spontaneous cytokine release from fresh isolated PP cells.
- Quantification of interleukin (IL)-12, tumor necrosis factor (TNF)-alpha, IL-10, IL-6, IL-1 beta, and IL-8.
- Study included 40 serial autopsy cases covering natural and traumatic deaths.
Main Results:
- Elevated levels of TNF-alpha, IL-6, IL-1 beta, and IL-8 were significantly correlated with the traumatic death group.
- Specific cytokine profiles differed between natural and traumatic death cases.
Conclusions:
- Peyer's patches exhibit a distinct post-mortem immune response.
- Elevated cytokine levels in PP may serve as indicators for traumatic death.
- PP are valuable lymphoid organs with potential diagnostic utility in forensic investigations.
