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Medical Science Monitor Basic Research


eISSN: 1643-3750

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Class III β-Tubulin in Colorectal Cancer: Tissue Distribution and Clinical Analysis of Chinese Patients

Xiaoli Zhao, Changli Yue, Jiamin Chen, Cheng Tian, Dongmei Yang, Li Xing, Honggang Liu, Yulan Jin

(Department of Pathology, Beijing Tongren Hospital, Capital Medical University and Beijing Key Laboratory of Head and Neck Molecular Diagnostic Pathology, Beijing, China (mainland))

Med Sci Monit 2016; 22:3915-3924

DOI: 10.12659/MSM.901252

BACKGROUND: Class III β-tubulin (βIII-tubulin) has been reported to express at the invasive margin of colorectal cancer. The present study aimed to investigate the clinical implication of βIII-tubulin expression at the invasive margin of colorectal cancer.
MATERIAL AND METHODS: We recruited 111 patients with surgically resected colorectal carcinoma for bIII-tubulin expression analysis. The cases with bIII-tubulin-positive tumor cells found only in the invasive front tumor area were assigned to the invasive front group, while the remaining cases were all assigned to the non-invasive front group. Clinical analysis of βIII-tubulin and other clinical data was performed.
RESULTS: The positive staining rates and staining intensity of bIII-tubulin were significantly different between the invasive and non-invasive front groups (p=0.001 and p=0.006), and there was a significant difference in tumor differentiation between the 2 groups (p=0.032). In the non-invasive front group, staining intensity of bIII-tubulin was significantly associated with positive staining rates and lymphatic metastasis (p<0.001 and p=0.048).
CONCLUSIONS: Our data showed the tissue distribution of bIII-tubulin expression at invasive margin or diffuse distribution. Expression of bIII-tubulin was correlated with tumor differentiation and lymphatic metastasis, suggesting a potential role of bIII-tubulin in tumor differentiation and metastasis. This study may shed light on bIII-tubulin as a novel potential molecular target for a new anti-cancer drug.

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