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[Lactoferrin]
R Iuliano1, P Piantino, G F Tappero
1Divisione di Gastroenterologia, Ospedale S. Giovanni Battista, Torino.
Abstract:
Lactoferrin is a protein present in many fluids of the human organism and in the secondary granules of polymorphonuclear cells (PMN). In the blood stream lactoferrin favours the segregation of PMN by mediating and amplifying the immune response, and realizes a negative feedback control on the Colony Forming Unit Granulocyte/Macrophage (CFU-GM) proliferation. At intestinal level it promotes iron absorption and prevents bacterial overgrowth. The antibacterial effect of lactoferrin is used clinically to prevent bacterial infections in neutropenic patients submitted to chemotherapy for leukemic diseases type M1, M2, M4 and M5, according to FAB criteria. In patients affected by chronic pancreatitis the lactoferrin concentration, in duodenal juice, is found to be significantly higher than in normal subjects. This finding suggests a pathogenetic role of the protein in chronic pancreatitis.
Insights
Lactoferrin, an immune-boosting protein, helps prevent infections in chemotherapy patients. Elevated lactoferrin in duodenal juice suggests its role in chronic pancreatitis.
Area of Science:
- Biochemistry
- Immunology
- Gastroenterology
Context:
- Lactoferrin is a protein found in bodily fluids and immune cells.
- It modulates immune responses and iron absorption.
- Its antibacterial properties are clinically applied in neutropenic patients.
Purpose:
- To explore the multifaceted roles of lactoferrin.
- To investigate its clinical applications in chemotherapy patients.
- To examine lactoferrin levels in chronic pancreatitis.
Summary:
- Lactoferrin enhances immune response and iron absorption while preventing bacterial overgrowth.
- It is used to prevent infections in neutropenic patients undergoing chemotherapy.
- Significantly higher lactoferrin concentrations in duodenal juice of chronic pancreatitis patients suggest a pathogenetic role.
Impact:
- Highlights lactoferrin's crucial role in immune defense and iron metabolism.
- Demonstrates clinical utility in managing chemotherapy-induced infections.
- Provides novel insights into the potential involvement of lactoferrin in chronic pancreatitis pathogenesis.