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Updated: Jan 18, 2026

Activation and Measurement of NLRP3 Inflammasome Activity Using IL-1β in Human Monocyte-derived Dendritic Cells
Published on: May 22, 2014
Regulation of ZFP36 by lncOlfr29 promotes inflammation through NLRP3
Wenyue Cheng1, Fan Li1, Yuan Zhang1
1Department of Immunology, Nankai University School of Medicine, Nankai University, Tianjin, China.
Objective:
The functional state of macrophages is regulated by multiple factors and closely related to the occurrence and development of various diseases. The aim of this study is to discover a new regulatory factor in macrophages, which can serve as a target for disease prevention and treatment.
Methods:
Long non-coding RNA (lncRNA) lncOlfr29 was discovered through RNA sequencing. The functions of lncOlfr29 were investigated by bioinformatics analysis, lncOlfr29 shRNA silencing and overexpressing adenovirus, and lncOlfr29 knockout (KO) mice. To investigate the function of lncOlfr29 in vivo, we also established a Salmonella infection model and DSS-mediated colitis using lncOlfr29 KO mice.
Results:
We here identified a novel lncRNA named lncOlfr29 in macrophages and demonstrated that lncOlfr29 promoted inflammation by enhancing NLRP3-mediated IL-1 β maturation and pyroptosis of macrophages. In vivo experiments showed that lncOlfr29 could promote resistance to Salmonella infection and sensitivity to DSS mediated colitis. Mechanistically, lncOlfr29 could bind to zinc finger protein 36 (ZFP36) to eliminate the degradation of ZFP36 on NLRP3 mRNA. Knockout of lncOlfr29 led to a decrease of NLRP3 in cytoplasm, reducing macrophage pyroptosis and IL-1 β maturation.
Conclusion:
Our data demonstrate that lncOlfr29 can regulate expression of NLRP3 through binding with ZFP36. These results will provide new insights into the treatment of inflammatory diseases.
Insights
A novel long non-coding RNA, lncOlfr29, promotes inflammation by regulating NLRP3. This discovery offers new therapeutic targets for inflammatory diseases and infections.
Area of Science:
- Immunology
- Molecular Biology
- Genetics
Background:
- Macrophage function is critical in disease pathogenesis.
- Identifying novel regulatory factors in macrophages is key for therapeutic development.
Purpose of the Study:
- To discover and characterize a new regulatory factor in macrophages.
- To explore the role of this factor in inflammatory diseases.
Main Methods:
- RNA sequencing identified lncOlfr29.
- Functional studies involved shRNA, adenovirus, and knockout mice.
- In vivo models included Salmonella infection and DSS-induced colitis.
Main Results:
- lncOlfr29 promotes inflammation via NLRP3-mediated IL-1β maturation and pyroptosis.
- lncOlfr29 enhances resistance to Salmonella infection but increases susceptibility to colitis.
- lncOlfr29 binds ZFP36, preventing NLRP3 mRNA degradation.
Conclusions:
- lncOlfr29 regulates NLRP3 expression through ZFP36 interaction.
- This mechanism provides novel insights for treating inflammatory diseases.
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