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Functional significance of transgelin‐2 in uterine cervical squamous cell carcinoma
Author(s) -
Yakabe Kazuyuki,
Murakami Akihiro,
Kajimura Takuya,
Nishimoto Yuki,
Sueoka Kotaro,
Sato Shun,
Nawata Shugo,
Sugino Norihiro
Publication year - 2016
Publication title -
journal of obstetrics and gynaecology research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.597
H-Index - 50
eISSN - 1447-0756
pISSN - 1341-8076
DOI - 10.1111/jog.12935
Subject(s) - immunohistochemistry , clone (java method) , biology , in vivo , cell culture , matrix metalloproteinase , cancer research , pathology , medicine , immunology , gene , biochemistry , genetics , microbiology and biotechnology
Aim Transgelin‐2 (TAGLN2) has previously been found to be highly expressed in uterine cervical squamous cell carcinoma (SCC) tissues by proteomic analyses. The present study investigated the role of TAGLN2 in the malignant behaviors of cervical SCC cells in vitro and in vivo , and the clinical significance of TAGLN2 using immunohistochemistry for human cervical SCC tissues. Methods Antisense (AS) constructs of TAGLN2 cDNA (AS clones) and the empty vector (control clone) were transfected into a human uterine SCC cell line (SKG IIIa), and malignant behaviors were analyzed in vitro . In an in vivo experiment, 10 7 cells of the AS and control clones were subcutaneously inoculated into female BALB/c nude mice. In immunohistochemistry with anti‐TAGLN2 antibodies for human cervical SCC, FIGO stage IA and IB ( n = 75), the expression patterns of TAGLN2 were divided into two groups: weak and strong. The relation between expression pattern and prognosis was analyzed. Results Suppression of TAGLN2 inhibited cancer cell migration and secretion of matrix metalloproteinases. Tumors in the control clone group continued to grow, whereas those in the AS clone group clearly stopped growing. Six weeks after injection, the tumor size was significantly smaller in the AS clone group than in the control clone group. Immunohistochemistry revealed that the strong pattern was associated with poor overall survival compared with the weak pattern by the Kaplan–Meier method. Conclusion TAGLN2 plays functional roles in the progression of cervical SCC. Suppression of TAGLN2 may be a new strategy for the treatment of cervical SCC.