Long noncoding RNA SNHG12 promotes the progression of cervical cancer via modulating miR-125b/STAT3 axis.

Increasing evidence showed that long noncoding RNAs (lncRNAs) played an important role in the occurrence and development of tumors. To date, lncRNA small nucleolar RNA host gene 12 (SNHG12) has revealed an oncogenic role in various tumors. However, the role of SNHG12 in cervical cancer is still unclear. Therefore, we focused on the biological function and molecular mechanism of SNHG12 in the tumorigenesis of cervical cancer. In this study, the expression of miR-125b was observably downregulated in cervical cancer cells. Meanwhile, the expression of SNHG12 was obviously upregulated in cervical cancer cell lines (HeLa, SiHa, Caski, C4-1, and C33A) compared with the immortalized cervical epithelial cells. The further assay showed that miR-125b was a target of SNHG12 in cervical cancer. Moreover, a negative relationship between miR-125b and SNHG12 was found in cervical cancer. In addition, SNHG12 inhibition restrained the proliferation, migration, and invasion of cervical cancer cells. Meanwhile, miR-125b mimics repressed the expression of signal transducer and activator of transcription 3 (STAT3). The further assay showed that STAT3 was a target of miR-125b in cervical cancer. In addition, sh-STAT3 repressed the migration and invasion of cervical cancer cells. Furthermore, it showed that miR-125b inhibitors reversed STAT3 expression restrained by the reduction of SNHG12 expression. In general, SNHG12 modulated STAT3 by sponging miR-125b in cervical cancer and played an important role in the development of cervical cancer.

Alignment of the lower extremity mechanical axis by computer-aided design and application in total knee arthroplasty.

PURPOSE: The success of total knee arthroplasty (TKA) depends on many factors. The position of a prosthesis is vitally important. The purpose of the present study was to evaluate the value of a computer-aided establishing lower extremity mechanical axis in TKA using digital technology. METHODS: A total of 36 cases of patients with TKA were randomly divided into the computer-aided design of navigation template group (NT) and conventional intramedullary positioning group (CIP). Three-dimensional (3D) CT scanning images of the hip, knee, and ankle were obtained in NT group. X-ray images and CT scans were transferred into the 3D reconstruction software. A 3D bone model of the hip, knee, ankle, as well as the modified loading, was reconstructed and saved in a stereolithographic format. In the 3D reconstruction model, the mechanical axis of the lower limb was determined, and the navigational templates produced an accurate model using a rapid prototyping technique. The THA in CIP group was performed according to a routine operation. CT scans were performed postoperatively to evaluate the accuracy of the two TKA methods. RESULTS: The averaged operative time of the NT group procedures was [Formula: see text] min shorter than those of the conventional procedures ([Formula: see text]  min). The coronal femoral angle, coronal tibial angle, posterior tibial slope were [Formula: see text], [Formula: see text], [Formula: see text] in NT group and [Formula: see text], [Formula: see text], [Formula: see text] in CIP group, respectively. Statistically significant group differences were found. CONCLUSIONS: The navigation template produced through mechanical axis of lower extremity may provide a relative accurate and simple method for TKA.