High Fat Diet Causes Liposarcoma in Mice with IL-22 Overexpression
Author Information
Author(s): Wang Zheng, Yang Ling, Jiang Yuhui, Ling Zhi-Qiang, Li Zhigang, Cheng Yuan, Huang Heng, Wang Lingdi, Pan Yi, Wang Zhenzhen, Yan Xiaoqiang, Chen Yan
Primary Institution: Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences
Hypothesis
IL-22 overexpression in adipose tissue interacts with a high fat diet to promote tumor development.
Conclusion
The study found that high fat diet combined with IL-22 overexpression leads to the development of spontaneous liposarcomas in mice.
Supporting Evidence
- IL-22 overexpression in adipose tissue did not affect obesity or insulin resistance.
- 100% of IL-22 transgenic mice fed a high fat diet developed spontaneous tumors.
- Histological analysis confirmed the tumors were well-differentiated liposarcomas.
- IL-22 increased the expression of inflammatory cytokines in adipose tissue.
Takeaway
Mice that had a special gene making them produce more IL-22 developed tumors when they ate a high-fat diet, showing that diet and this gene can work together to cause cancer.
Methodology
Transgenic mice with IL-22 overexpression were fed a high fat diet, and tumor development was monitored and analyzed histologically.
Limitations
The study was conducted in a mouse model, which may not fully replicate human conditions.
Participant Demographics
Male ICR strain mice were used in the study.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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