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Kanamycin activates caspase-1 in NC/Nga mice
Na-Ra Han1, Hyung-Min Kim, Hyun-Ja Jeong
1Department of Pharmacology, College of Oriental Medicine, Kyung Hee University, Seoul, Korea.
Experimental Dermatology
|May 17, 2011
Summary
Antibiotic use in children may lead to inflammatory diseases. Kanamycin treatment in mice increased skin inflammation by upregulating caspase-1, suggesting a link between early antibiotic exposure and inflammatory reactions.
Area of Science:
- Immunology
- Dermatology
- Pharmacology
Background:
- Antibiotic overuse in children is linked to increased inflammatory disease risk.
- Mechanisms underlying this association require further investigation.
Purpose of the Study:
- To investigate the mechanisms of kanamycin-induced skin inflammation in NC/Nga mice.
- To explore the role of caspase-1 in antibiotic-induced inflammatory responses.
Main Methods:
- NC/Nga mice were orally administered kanamycin for 7 days.
- Skin, blood, and spleen tissues were collected 18 weeks post-treatment.
- Assessed allergic reactions, caspase-1, IL-1β, IL-18, TNF-α expression, and NF-κB/IκBα activation.
Main Results:
- Kanamycin administration significantly increased allergic skin reactions.
- Elevated caspase-1 mRNA and protein expression were observed in mouse skin.
- Increased IL-1β, IL-18, and TNF-α production and NF-κB activation were noted.
Conclusions:
- Kanamycin-induced skin inflammation in mice is mediated by caspase-1 upregulation.
- Early-life antibiotic exposure may predispose individuals to inflammatory conditions.
- Findings highlight the potential long-term effects of antibiotic use on immune responses.
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