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The anti-tumor function of aryl hydrocarbon receptor expressed on macrophages in colorectal cancer

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Ⅰ. INTRODUCTION 1
Ⅱ. MATERIALS AND METHODS 2
1. Mice 2
2. Isolation of colonic lamina propria mononuclear cells 2
3. Bone marrow-derived macrophages 3
4. Real time-PCR 3
5. Flow cytometry 4
6. Magnetic sorting of F4/80+ cells 4
7. AOM/DSS-induced colorectal cancer 4
8. DSS-induced colitis 5
9. Tissue mRNA 5
10. Histology 5
11. ELISA 6
12. TCGA data analysis 6
13. Statics 6
Ⅲ. RESULTS 11
A. Absence of AhR in macrophages is more susceptible to AOM/DSS-induced colorectal cancer. 11
B. AHR-deficient BMDMs are more inflammatory under LPS stimulation. 14
C. AHR in macrophages reduces inflammatory damage in colon tissue. 17
D. Absence of AhR in macrophages leads to greater infiltration of pro-inflammatory macrophages. 19
E. AhR contributes to tumor suppression by blocking the STAT3 signaling pathway. 21
F. AhR in macrophages may activate the TGF-β/SMAD axis. 24
G. AhR in macrophages may also affect the function or activity of colonic B cells. 25
H. In human colon cancer, macrophages and STAT3 are correlated and AhR activity is decreased. 27
Ⅳ. DISCUSSION 29
Ⅴ. CONCLUSION 32
REFERENCES 33
KOREAN ABSTRACT 35

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