This study aimed to elucidate the roles of long non-coding RNA SNHG14 in gastric cancer development. LncRNA SNHG14 was markedly up-regulated in gastric cancer tissues and cells. Knockdown of SNHG14 significantly inhibited SGC-7901 cell viability, migration, invasion, and promoted cell apoptosis. In addition, miR-145 was negatively regulated by SNHG14 and the effects of SNHG14 knockdown on cell viability, apoptosis, migration, invasion, and the expression of apoptosis-related proteins and EMT-markers were reversed by inhibition of miR-145 at the same time. Furthermore, SOX9 was verified as a functional target of miR-145, and miR-145 regulated tumor malignant behaviors through regulating SOX9. Besides, knockdown of SNHG14 inhibited the expression of p-PI3 K, p-AKT, and p-mTOR and promoted PTEN expression, where miR-145 inhibition had opposite effects. Moreover, the activated PI3 K/AKT/mTOR pathway caused by miR-145 inhibition was counteracted after knockdown of SOX9. Our findings indicate that up-regulation of lncRNA SNHG14 may contribute to gastric cancer development via targeting miR-145/SOX9 axis and involving in PI3 K/AKT/mTOR pathway. SNHG14-miR-145/SOX9 axis may be a promising therapeutic strategy for gastric cancer treatment.

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Background: To investigate the efficacy and value of thoracoscopic hybrid surgery in the treatment of stage III chronic tuberculous empyema (CTE). Methods: 48 patients diagnosed as CTE with pleural thickening and encysted abscess cavity from were treated by hybrid operation (HO). Small incision operation was first used for resection of thickening pleural fibreboard and decortication of parietal pleura. Then, thoracoscopy was guided into chest to decorticate the visceral pleurali. Additional 25 patients with open operation of pleurectomy were set as control. Results: The average operation time of HO group was 70 ± 22 min compared to 130 ± 32 min of control. The amount of bleeding, hospitalization time and chest tube drainage of HO group (200 ± 55 ml, 18 ± 1.2 days, 3.5 ± 1.5 days) were significantly decreased compared to control (400 ± 45 ml, 28 ± 4.5 days, 6.5 ± 2.5 days). Post operation complications occurred in 5 (10.42%) and 3 (12%) cases for HO group and control, respectively. Conclusions: In stage III CTE, the small incision assisted thoracoscopic hybrid surgery help to remove thickening parietal pleura, promote the application of thoracoscopy, which has obvious advantages compared to traditional surgery.

The distribution and levels of TNIP1 in malignant and normal gastric mucosa are different, but it is not known whether TNIP1 polymorphisms are related to gastric carcinogenesis. To assess the association between four TNIP1 SNPs (rs3792792, rs4958881, rs7708392, rs10036748) and carcinogenesis, we used Sequenom Mass-ARRAY technology to determine the genotypes of 302 gastric carcinoma patients and 300 healthy controls in a Northwest Chinese Han population. These data were then compared using the Chi-square test/Fisher's exact test, genetic model analysis, and haplotype analysis. Odds ratios (OR) and 95% confidence intervals (CI) were used to evaluate the correlation. We observed that patients with the “G” allele of rs7708392 and the “C” allele of rs10036748 showed an increased risk of gastric carcinoma (OR= 1.335, 95%CI: 1.021-1.745, P= 0.035; OR= 1.358, 95%CI: 1.039-1.774, P= 0.025, respectively). Conversely, the haplotype “CT” of TNIP1 (rs7708392-rs10036748) may act as a genetic protective factor for gastric carcinoma (adjusted OR= 0.731, 95%CI: 0.552-0.970, P= 0.030). Our results are the first to suggest that genetic variation in TNIP1 gene is associated with gastric carcinoma, though, this finding must be confirmed in other populations with larger sample size.

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