[The expression and significance of stem cell transcription factor Sox2 in lung carcinoma].
OBJECTIVE
Transcription factor Sox2 remains the pluripotency of stem cell, participates in self-renew of cancer stem cell and plays important role during the initiation and development of various cancers. This study intends to investigate the expression and significance of Sox2 and Sox2 autoantibodies (Sox2-Ab) in tissue and serum of patients with non-small cell lung cancer (NSCLC).


METHODS
Expression of Sox2 gene and protein was tested in 58 cases of NSCLC, 16 patients with other tumors and 20 cases of normal lung tissue specimens by quantitative PCR and immunohistochemical assay, respectively. Serum Sox2-Ab level was detected in 30 cases of NSCLC patients and 30 healthy controls by ELISA method. Clinical and pathological data from patients were collected and analyzed retrospectively.


RESULTS
Expression levels of Sox2 mRNA and protein were higher in patient with NSCLC than other groups, with statistically significant differences (P<0.01), respectively. Meanwhile, Sox2 mRNA expression increased in NSCLC patients associated with histological type and tumor size. No significant differences in Sox2-Ab serum levels were found between NSCLC patients and normal subjects.


CONCLUSIONS
Sox2 in NSCLC have a higher expression, which is closely related to histological type and tumor size. Sox2 might use as a potential biomarker and therapeutic target for lung cancer.
Department of Geriatrics, the First Affilicated Hospital of Nanjing Medical University, Nanjing 210029, China.
Wei
W
Xu
Yunyan
Y
Wei
Yaoxi
Y
Tan
Wei
W
Xu
Steven Yan
SY
Cheng
Jianqing
J
Wu
D002289:Carcinoma, Non-Small-Cell Lung / Q000097:blood* / Q000378:metabolism*; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008175:Lung Neoplasms / Q000097:blood* / Q000378:metabolism*; D008297:Male; D008875:Middle Aged; D014411:Neoplastic Stem Cells / Q000378:metabolism; D055748:SOXB1 Transcription Factors / Q000097:blood* / Q000378:metabolism*
D055748:SOXB1 Transcription Factors