CircNR3C1 Alleviates Gastric Cancer Development by Inactivating AKT/mTOR

Differential level and regulatory effect of circNR3C1 in gastric cancer (GC) were determined. The differential levels of circNR3C1 in clinical samples of GC were determined. The association of circNR3C1 level with pathological indicators of GC was analyzed. After intervening circNR3C1 levels in gastric cancer cells, proliferative and migratory changes were investigated. Furthermore, we measured AKT and mTOR protein levels in GC cells intervened by circNR3C1. Finally, the role of AKT/mTOR in GC cell phenotypes regulated by circNR3C1 was explored. circNR3C1 was markedly lowly expressed in GC cells and tissues. A low level of circNR3C1 predicted high incidences of lymphatic or distant metastasis of GC. Knockdown of circNR3C1 enhanced proliferation and migration abilities in BGC-823 cells, whereas overexpression of circNR3C1 yielded the opposite results in AGS cells. circNR3C1 downregulated mTOR and AKT in GC cells. In addition, induction of the AKT activator could reverse the attenuated proliferative and migratory potentials in GC cells overexpressing circNR3C1. On the contrary, induction of the AKT inhibitor reversed the stimulated malignant phenotypes of GC with circNR3C1 knockdown. circNR3C1 inhibits GC to proliferate and migrate by inactivating the AKT/mTOR signaling. It is also closely linked to GC metastasis.

Application of the Concept of Enhanced Recovery after Surgery in Total Laparoscopic Radical Gastrectomy

To explore the clinical effects of total laparoscopic radical gastrectomy under the guidance of the concept of enhanced recovery after surgery (ERAS). Fifty-five patients were perioperatively treated under the concept of ERAS (ERAS group), while the remaining 55 patients were treated under the traditional perioperative concept (control group). The operation time, intraoperative blood loss, the time of first anal exhaust and first postoperative off-bed activity, postoperative length of stay, and incidence of postoperative complications were recorded in both groups. The pain of patients was assessed using VAS system. The nausea and vomiting and abdominal distension were assessed using the NVDS and abdominal distension score, respectively, within 24 h after operation. The patient's daily living ability was evaluated by the ADL scale at 3 d after the operation. The time of first anal exhaust, the time of first postoperative off-bed activity time, and the postoperative in-hospital time were all significantly shorter in the ERAS group than those in the control group (P < 0.001). The VAS score in the ERAS group was significantly lower than that in the control group at 12 h, 24 h, 48 h, and 72 h after operation (P < .001). The ERAS group had significantly lower NVDS score and abdominal distension score than the control group (P < 0.001). The postoperative ADL score in the ERAS group was significantly higher than that in the control group (P < 0.001). ERAS during the perioperative period of total laparoscopic radical gastrectomy can promote the postoperative rehabilitation of patients and alleviate postoperative pain and gastrointestinal reactions, which is safe and effective.

SNHG1/miR-145-5p/KLF5 Axis Participates in Regulating the Proliferation and Migration of Oral Squamous Cell Cancer

We aimed to clarify the molecular mechanism of lncRNA SNHG1 in regulating the OSCC process. Clinical samples of OSCC were collected for detecting the differential level of SNHG1 by qRT-PCR. Pathological indexes of OSCC patients were analyzed for uncovering the prognostic value of SNHG1. The interaction between SNHG1 and miR-145-5p was assessed through the bioinformatics method and dual-luciferase reporter assay. Their coregulation on proliferative and migratory functions of Tca8113 and CAL-27 cells was explored by the CCK-8, EdU, and Transwell assay. Finally, the regulatory effect of miR-145-5p on its downstream gene KLF5 was evaluated. SNHG1 was abnormally upregulated in OSCC samples and linked to a poor prognosis of OSCC patients. Serving as an oncogene, SNHG1 strengthened proliferative and migratory functions of Tca8113 and CAL-27 cells. miR-145-5p was a key downstream target inducing the oncogenic role of SNHG1 in the OSCC process with KLF5 as its downstream gene. SNHG1/miR-145-5p/KLF1 axis is responsible for driving the malignant process of OSCC.