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Published on: July 14, 2016
Haptoglobin, inflammation, and tumorigenesis in the MIN mouse
K W Barbour1, T Davis, A White
1Department of Biological Sciences, University of South Carolina, Columbia 29208, USA.
Redox Report : Communications in Free Radical Research
|February 28, 2002
Summary
The MIN mouse model shows chronic inflammation linked to intestinal tumors. Haptoglobin (HP), an acute phase protein, appears to suppress tumor growth, suggesting a role for inflammation in tumorigenesis.
Area of Science:
- Gastroenterology
- Oncology
- Immunology
Background:
- The MIN mouse model spontaneously develops intestinal adenomas.
- Chronic inflammation, marked by acute phase protein induction like haptoglobin (HP), is observed in MIN mice.
- Inflammation onset occurs between 40-70 days of age and persists lifelong.
Purpose of the Study:
- To investigate the role of haptoglobin (HP) and inflammation in intestinal tumorigenesis using the MIN mouse model.
- To determine if manipulating inflammation onset affects tumor development and lifespan.
Main Methods:
- Utilized the MIN mouse model predisposed to intestinal adenomas.
- Studied the induction of haptoglobin (HP) and other acute phase proteins as indicators of inflammation.
- Investigated the effect of delayed inflammation onset via dietary means.
- Analyzed haptoglobin knockout mice to assess HP's role in tumorigenesis.
Main Results:
- MIN mice exhibit chronic inflammation with induced haptoglobin (HP) and acute phase proteins.
- Delayed inflammation onset correlated with reduced tumor number and increased lifespan.
- Haptoglobin knockout mice showed an increased tumor burden, suggesting HP suppresses tumorigenesis.
Conclusions:
- Haptoglobin (HP) may act as a suppressor of intestinal tumorigenesis, potentially by modulating the inflammatory response.
- The MIN mouse is a valuable model for in vivo studies on the interplay between HP, inflammation, and tumor development.
