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자료유형
학술저널
저자정보
임준 (분당서울대학교병원 병리과) 남수경 (서울대학교병원) 이혜승 (서울대학교)
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대한병리학회 Journal of Pathology and Translational Medicine Journal of Pathology and Translational Medicine 제55권 제2호
발행연도
2021.1
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125 - 131 (7page)

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Background: MicroRNA-552 (miR-552) has been reported to correlate with the development and progression of various cancers, including colorectal cancer (CRC). This study aimed to investigate miR-552 expression in cancer tissue samples compared to normal mucosal tissue and its role as a diagnostic or prognostic marker in CRC patients. Methods: Normal mucosal tissues and primary cancer tissues from 80 surgically resected CRC specimens were used. Quantitative real-time polymerase chain reaction was performed for miR-552 and U6 small nuclear RNA to analyze miR-552 expression and its clinicopathological significance. Immunohistochemistry for p53 and phosphatase and tension homolog (PTEN) was performed to evaluate their association with miR-552 expression. Results: miR-552 expression was significantly higher in primary cancer tissues compared to normal mucosal tissues (p < .001). The expression level of miR-552 was inversely correlated with that of PTEN (p = .068) and p53 (p = .004). Survival analysis showed that high miR-552 expression was associated with worse prognosis but this was not statistically significant (p = .255). However, patients with CRC having high miR-552 expression and loss of PTEN expression had significantly worse prognosis than others (p =. 029). Conclusions: Our results suggest that high miR-552 expression might be a potential diagnostic biomarker for CRC, and its combined analysis with PTEN expression can possibly be used as a prognostic marker.

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