The Prognostic Importance of Cancer Stem Cells in Colorectal Polyps

BACKGROUND

This purpose aims to investigate the usefulness of CD133, a stem cell marker, for the prognosis of colon polyps. This study aimed to assess the adenomatous polyps that have an essential role in the development of colorectal cancer. The risk of colorectal carcinogenesis can be reduced by polypectomy and close medical supervision of the patients with adenomatous polyps. The prominence of stem cells in carcinoma development is also a recognized verdict. It must be noted that stem cell evaluation in adenomatous polyps may provide information about carcinoma development.

METHOD

Previously pathologically assessed colorectal polyps in 60 males and 40 females at Azerbaijan Medical University were reevaluated at the Pathology Department under the Meram Medical Faculty. Hematoxylin-eosin stained preparations were examined, and cases with and without dysplasia were determined. The image analysis program re-examined the preparations, and the same image analysis system automatically counted CD133 positive stained cells in the unit area. At the end of the follow-up period after polypectomy, the cases of malignancy were detected.

RESULTS

The relationship between CD133 expression of dysplasia and malignancy was statistically compared. During the investigation, the statistically significant relationship between CD133 expression and dysplasia, as well as malignancy development, was observed in this study.

CONCLUSION

During the examination, the statistical significance of CD133 expression was detected in cases with dysplasia and malignancy. The investigation of CD133 expression in colorectal polyps is crucial in determining the presence of dysplasia and malignancy development, particularly in obtaining prognostic data in colorectal polyps.

The role of "Prominin - 1" marker in adenomatous colorectal polyps

<b>Introduction:</b> Adenomatous polyps are pivotal to the development of colorectal cancer. The risk of colorectal carcinogenesis can be reduced through polypectomy and close surveillance of the disease. Early-stage polyps can be detected and removed endoscopically, therefore, reducing the incidence of carcinoma. The identification of CSC in colon polyps allows for assessment of their potential malignancy. Therefore, it is very relevant to study the prognostic significance of the prevalence of stem cells in colorectal polyps in early detection and prevention of cancer. </br></br> <b> Method:</b> Previously pathologically evaluated adenomatous tumors (60M, 40F) at Azerbaijan Medical University were reevaluated in Meram Medical Faculty Pathology Department. Hematoxylin-Eosin-stained slides were examined and cases with and without dysplasia were determined. New sections were taken from paraffin blocs. Prominin-1 staining was performed immunohistochemically on these sections. Stained slides were examined by an image analysis system. Prominin-1-positive cells were automatically counted with the same image analysis system. The cases that developed malignancy after polypectomy were determined. The relationship between CD133 expression of dysplasia and malignancy was statistically analyzed. </br></br> <b> Results:</b> Statistically significant prominin-1 expression was detected in cases with dysplasia and malignancy. </br></br> <b> Conclusion:</b> The investigation of prominin-1 expression in colorectal polyps may be important to determine malignancy development.