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J Cancer Res Ther ; 12(2): 663-6, 2016.
Article in English | MEDLINE | ID: mdl-27461628

ABSTRACT

OBJECTIVE: To study the expression of spleentyrosine kinase (Syk) gene in non--small--cell lung cancer and the relationship between Syk mRNA and microvessel density (MVD) in the tumor cells. MATERIALS AND METHODS: The expression of Syk gene in 70 cases of lung tumor tissues, adjacent tissues, and normal lung tissues were examined with reverse transcription polymerase chain reaction (RT--PCR). The expression of MVD was examined with immunohistochemical streptavidin--biotin complex (SABC). The relation between them was analyzed. RESULTS: Syk mRNA expression rates were 5.7, 95.7, and 100% in tumor, adjacent lung cells, and normal lung cells, respectively. The expression rate in tumor cells was significantly lower compared with those in normal lung tissue and adjacent lung tissue (P < 0.05), expression rate among different pathologic types, differentiation and clinical stages did not reveal any statistically significant differences (P > 0.05). The positive rate of CD34 in tumor was higher than that in adjacent tissues and normal lung tissues. The expression of Syk mRNA and MVD were negatively correlated. CONCLUSIONS: The lack of Syk mRNA expression in lung cancer play an important role in angiogenesis.


Subject(s)
Carcinoma, Non-Small-Cell Lung/blood supply , Lung Neoplasms/blood supply , Neovascularization, Pathologic/etiology , Syk Kinase/physiology , Adult , Aged , Antigens, CD34/analysis , Carcinoma, Non-Small-Cell Lung/pathology , Female , Humans , Lung Neoplasms/pathology , Male , Middle Aged , Neoplasm Staging , Syk Kinase/genetics
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