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Objective:To explore the effect of miR-21 on cell proliferation, apoptosis, invasion and radiosensitivity of cervical cancer HeLa cells and unravel the underlying mechanism.Methods:RT-qPCR assay was used to detect the expression levels of miR-21 in cervical cancer tissues and adjacent non-tumor tissues, normal cervical epithelial cells (H8) and cervical cancer cell lines (HeLa, SiHa, ME180). HeLa cell line with inhibition of miR-21 or knockdown of RECK were constructed. CCK-8, Caspase3/7 live cell apoptosis detection, wound healing test, Transwell invasion, clone formation assay, Western blot and immunofluorescence were performed to detect cell viability, apoptosis, migration, invasion, radiosensitivity and related proteins. The dual luciferase assay verified whether miR-21 targeted RECK.Results:MiR-21 level in the cervical cancer tissues was significantly higher than that in its corresponding adjacent non-tumor tissues ( P<0.05). The expression levels of miR-21 in cervical cancer cell lines HeLa, SiHa and ME180 were significantly up-regulated compared with those in normal cervical epithelial cells H8(all P<0.05). MiR-21 knockdown significantly inhibited HeLa cell viability, promoted cell apoptosis, reduced radiation tolerance, down-regulated the expression of Cyclin D 1,Bcl-2, MMP-2 and MMP-9, and up-regulated the expression P21 and Bax proteins (all P<0.05). miR-21 targeted the 3’-UTR of RECK mRNA and negatively regulated the expression of RECK. Silencing RECK reversed the effects of miR-21 knockdown on HeLa cell apoptosis, migration, invasion and radiosensitivity. Conclusions:Inhibiting the expression of miR-21 significantly decreases cell viability, induces cell apoptosis, weakens cell migration and invasion capabilities, and enhances the radiosensitivity of HeLa cells. The potential mechanism is closely related to the targeted up-regulation of RECK.
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Objective:To investigate the clinical characteristics of patients with hepatic metastasis after cervical cancer operation, and analyze the risk factors and prognostic factors of hepatic metastasis.Methods:A total of 1 312 patients with stage Ⅰa2-Ⅱb2 cervical cancer received radical surgery from January 2013 to January 2016 in the First Affiliated Hospital of Zhengzhou University were collected, of which 13 cases (0.99%, 13/1 312) had hepatic metastasis after operation. A retrospective analysis was conducted on clinical features of patients with hepatic metastasis after cervical cancer operation. T-test, chi-square test, rank sum test and logistic regression were used to analyze the risk factors of hepatic metastasis after surgery of cervical cancer operation. Kaplan-Meier method was used for survival analysis. Log-rank test was used for screening of prognostic factors in patients with postoperative hepatic metastasis.Results:(1) Clinical features: there were 3 cases of simple hepatic metastasis without obvious clinical symptoms, 2 patients with perihepatic lymph node metastasis showed only low back pain, 8 patients with multiple extrahepatic metastases, and their clinical symptoms were related to the site of metastasis. Five cases out of 9 (5/9) with liver metastasis had abnormal tumor marker results. The abnormal kinds of tumor markers were mainly carcinoembryonic antigen (CEA), CA 125, CA 199, and CA 72-4. The interval time of hepatic metastasis after operation was 2-22 months. (2) Analysis of risk factors for hepatic metastasis: univariate analysis showed that lymph node metastasis, histological type, infiltration depth, and lymph-vascular space invasionwere associated with hepatic metastasis after cervical cancer surgery ( P<0.05).Multivariate analysis showed that lymph node metastasis and small cell carcinoma were independent risk factors for postoperative hepatic metastasis ( P<0.05). (3) Prognostic factors in patients with hepatic metastasis:among 13 patients with postoperative hepatic metastases from cervical cancer, 9 died during the follow-up period and 4 survived. The median total survival time after hepatic metastases was 7 months (range 3-32 months). Univariate analysis showed that multiple extrahepatic metastases and treatment after hepatic metastasis had significant effects on the prognosis of patients with hepatic metastasis after cervical cancer operation ( P<0.05). Conclusions:The interval of hepatic metastasis after surgery for cervical cancer operation is within 2 years. Patients with lymph node metastasis and small cell carcinoma are more prone to postoperative hepatic metastasis. The prognosis of patients with extrahepatic multiple metastases is poor, and individualized treatment should be carried out after comprehensive analysis for patients with hepatic metastasis after cervical cancer operation.
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This paper aims to discuss the clinical significance of laparotomy nerve sparing radical hysterectomy [NSRH] on rectal function of early cervical cancer patients, compared with conventional radical hysterectomy. 30 cases of early cervical carcinoma patients who had received surgery in the First Affiliated Hospital of Zhengzhou University from June 2010 to June 2014 were selected as subjects. Patients were divided into two groups, with 15 in each group, in which Group A had received NSRH, B received CRH, and all them were in stage IB-IIA1. In the surgery, 2 cases of patients in NSRH group failed in nerve sparing operation, and were grouped into CRH group. The postoperative condition of two groups were observed, recorded and compared as well, especially the comparison between the postoperative recovery condition of rectal function of two groups. The comparison were conducted between two groups on the operation time, bleeding volume, quantity of cleaned pelvic lymph node, resection length of parametrium, resection length of vagina, etc. There was no statistical significance [P>0.05]. The postoperative urinary catheter indwelling time in NSRH group was shorter than CRH group, with statistical significance [P<0.05]. The postoperative maximum urine flow, maximum cystometric capacity, maximum detrusor pressure and urinary complications in NSRH group were significantly better than the postoperative condition in CRH group, with statistical significance [P<0.05]. NSRH surgery was safe and reliable, which not only had obvious advantage in improving postoperative rectal function and bladder function, but also had a significantly effect on improving postoperative life quality as well. The results proved that patients had low disease morbidity and with great clinical significance
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This paper aims to investigate the clinical curative effect and adverse reactions of cryotherapy combined with interferon in the treatment of chronic cervicitis complicated with HPV infection. 100 cases diagnosed with chronic cervicitis complicated with HPV infection from August 2014 to August 2015 in our hospital were selected and randomly divided into observation group [50 cases] and control group [50 cases]. The preoperative and postoperative HPV-DNA changes were observed, and the vaginal discharge, time of decrustation and hemostasis, HPV negative conversion ratio and clinical efficacy were compared, to record the adverse reactions during treatment. After treatment, the level of RLU/CO value of the observation group was significantly lower than that of the control group [P<0.05]; the vaginal discharge and time of decrustation and hemostasis of the observation group were shorter than that of the control group [P<0.05]; 3 months after treatment, the HPV negative conversion ratio in the observation group was significantly higher than that in the control group; the total efficiency of the observation group was higher than that of the control group, with statistical significance [P<0.05]. There were no serious adverse reactions in the two groups during the treatment. The efficiency of cervicitis complicated with HPV infection in the treatment of cryotherapy combined with interferon was more significantly. It can effectively reduce the load of HPV, promote the recovery of patients with pathological changes. Therefore, it is worth promoting