Related Experiment Videos
Proinflammatory cytokine release by peripheral blood mononuclear cells from patients with acute pancreatitis
A C de Beaux1, J A Ross, J P Maingay
1University Department of Surgery, Royal Infirmary, Edinburgh, UK.
Abstract:
Proinflammatory cytokine release was measured from peripheral blood mononuclear cells (PBMCs) isolated from six volunteers and, on admission, from 16 patients with acute pancreatitis. Tumour necrosis factor (TNF) release in patients did not differ significantly from that of volunteers, whereas both interleukin (IL) 6 and IL-8 release in patients was raised when compared with that in the volunteer group (mean(s.e.m.) IL-6 20.7(4.6) versus 9.3(1.7) ng/ml, P = 0.03; IL-8 283(40) versus 128(22) ng/ml, P = 0.04). When variation in white cell count was accounted for, IL-6 and IL-8 release but not that of TNF was significantly greater in patients with severe disease than in those with mild disease. These results point to a complex upregulation of proinflammatory cytokine release from PBMCs in patients with acute pancreatitis, components of which relate to the clinical progress of the disease.
Insights
Proinflammatory cytokine release, specifically interleukin-6 and interleukin-8, is elevated in patients with acute pancreatitis compared to healthy volunteers. This cytokine release correlates with disease severity.
Area of Science:
- Immunology
- Gastroenterology
Background:
- Acute pancreatitis is an inflammatory condition with complex pathophysiology.
- Proinflammatory cytokines play a crucial role in the inflammatory response.
Purpose of the Study:
- To investigate the release of proinflammatory cytokines from peripheral blood mononuclear cells (PBMCs) in patients with acute pancreatitis.
- To determine if cytokine release differs between patients and healthy volunteers and correlates with disease severity.
Main Methods:
- Peripheral blood mononuclear cells (PBMCs) were isolated from six healthy volunteers and 16 patients with acute pancreatitis.
- Proinflammatory cytokine release (Tumour Necrosis Factor - TNF, Interleukin-6 - IL-6, Interleukin-8 - IL-8) was measured.
- Cytokine levels were compared between groups and analyzed in relation to disease severity (mild vs. severe).
Main Results:
- Interleukin-6 (IL-6) and Interleukin-8 (IL-8) release was significantly higher in acute pancreatitis patients compared to volunteers.
- Tumour Necrosis Factor (TNF) release did not differ significantly between patients and volunteers.
- After accounting for white cell count, elevated IL-6 and IL-8 release was associated with severe acute pancreatitis compared to mild cases.
Conclusions:
- There is a complex upregulation of proinflammatory cytokine release from PBMCs in acute pancreatitis.
- Specific cytokines, IL-6 and IL-8, are implicated in the inflammatory response and correlate with the clinical progression of acute pancreatitis.