AI Article Synopsis
- Tumor budding is identified as a negative prognostic factor in colorectal adenocarcinoma, and the role of interleukin-6 (IL6), produced by cancer-associated fibroblasts, is investigated as a potential mechanism behind this.
- In a study of 36 patient samples, IL6 expression was primarily found in the cancer stroma rather than in the cancer cells, with higher tumor budding grades observed in IL6-positive samples.
- Although IL6 expression correlated with tumor budding and exhibited characteristics of epithelial-mesenchymal transition, it did not significantly impact overall survival rates for patients.
Article Abstract
Tumor budding is a poor prognostic factor in colorectal adenocarcinoma, but the underlying mechanism remains unclear. Interleukin-6 (IL6) is one of the main cytokines produced by cancer-associated fibroblasts. IL6 is linked with cancer progression and poor prognosis by activating cancer cells and modifying the cancer microenvironment. However, little is known about the expression of IL6 in tumor budding and its association with tumor budding in colorectal adenocarcinoma. The clinicopathological and prognostic significance of IL6 in tumor budding was examined using a tissue microarray consisting of 36 patient samples of tumor budding in colorectal adenocarcinoma. IL6 mRNA was detected by RNAscope. Patients were stratified into negative and positive IL6 expression groups. IL6 expression was overwhelmingly observed in cancer stroma but was negligible in cancer cells. Tumor budding grade was higher in the IL6-positive group in cancer stroma than in the IL6-negative group ( = .0161), while the IL6-positive group significantly exhibited the epithelial-mesenchymal transition phenotype compared with the IL6-negative group in cancer stroma ( = .0301). There was no significant difference in overall survival between colorectal adenocarcinoma patients in the IL6-positive and -negative groups in cancer stroma. Tumor budding may be affected by IL6 expression, and IL6 expression in cancer stroma at tumor budding may be an important prognostic marker.
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| http://dx.doi.org/10.1177/10668969231177705 | DOI Listing |
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