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The vesicle-associated function of NOD2 as a link between Crohn's disease and mycobacterial infection
1Maastricht Radiation Oncology, MAASTRO/GROW Maastricht University Medical Center+, PO Box 616, 6200 MD Maastricht, The Netherlands ; Science Center, Volga Region State Academy of Physical Culture, Sport and Tourism, 33, Universiade Village, Kazan, 420138 Russia.
Abstract:
Although Crohn's disease (CD) etiology remains unclear, a growing body of evidence suggests that CD may include an infectious component, with Mycobacterium avium subsp. paratuberculosis (MAP) being the most likely candidate for this role. However, the molecular mechanism of the MAP involvement in CD pathogenesis remains unclear. The polymorphism of the NOD2 gene, coding for an intracellular pattern recognition receptor, is a factor of predisposition to mycobacterial infections and CD. Recent findings on NOD2 interactions and functions provide the missing pieces in the puzzle of a NOD2-mediated mechanism common for mycobacterial infections and CD. Implications of these new findings for the development of a better understanding and treatments of CD and mycobacterial infections are discussed.
Insights
Crohn's disease (CD) may involve Mycobacterium avium subsp. paratuberculosis (MAP). New findings suggest the NOD2 gene plays a key role in both CD and MAP infections, offering new treatment avenues.
Area of Science:
- Gastroenterology
- Immunology
- Microbiology
Background:
- The etiology of Crohn's disease (CD) is not fully understood.
- Evidence suggests an infectious component in CD pathogenesis.
- Mycobacterium avium subsp. paratuberculosis (MAP) is a potential causative agent.
Purpose of the Study:
- To elucidate the molecular mechanisms linking MAP to CD pathogenesis.
- To explore the role of NOD2 gene polymorphism in CD and mycobacterial infections.
- To integrate recent findings on NOD2 function into a cohesive model.
Main Methods:
- Review and synthesis of recent research on NOD2 interactions and functions.
- Analysis of the genetic predisposition associated with NOD2.
- Comparative analysis of mechanisms in mycobacterial infections and CD.
Main Results:
- NOD2 gene polymorphism is a known risk factor for CD and mycobacterial infections.
- Recent discoveries illuminate NOD2's role as an intracellular pattern recognition receptor.
- These findings provide a mechanistic link between NOD2, MAP, and CD.
Conclusions:
- A NOD2-mediated mechanism common to mycobacterial infections and CD is proposed.
- Understanding this mechanism can lead to improved diagnostics and therapeutics for CD.
- Further research into NOD2 pathways may yield novel treatments for both CD and mycobacterial diseases.
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