1.Research progress in oncolytic virus and immunotherapy for liver cancer
Chenyang DU ; Hongyan XU ; Jie ZHANG ; Chuan QIN ; Junhe ZHANG
Journal of Xinxiang Medical College 2024;41(2):187-190
Liver cancer is one of the most common cancers,and its common surgical treatment methods include tran-scatheter arterial chemoembolization,radiofrequency ablation,and liver transplantation surgery.However,the treatment effect of these surgeries on patients with mid-to late-stage liver cancer is not ideal.In recent years,with the continuous development of tumor gene therapy and tumor immunology,tumor treatment methods have transitioned from traditional models to targeted onco-lytic virus therapy.With the advantages of fast replication,the oncolytic virus can kill tumor cells without damaging other normal cells and realize the targeted treatment of liver cancer through mechanisms such as activating the immune system and improving the tumor microenvironment.In addition,immunotherapy can reduce tumor recurrence and metastasis,thereby exerting therapeutic effects on liver cancer.This article reviews the research progress of oncolytic virus and immunotherapy for liver cancer,aiming to provide a reference for the clinical treatment of liver cancer.
2.Risk factors of postoperative recurrence after parastomal hernia repair
Chenyang DU ; Yong WANG ; Wen LUO ; Xin DUAN ; Wenjie KE ; Nian SHI ; Yingxiang WU
Chinese Journal of General Surgery 2023;38(10):772-775
Objective:To investigate the risk factors of postoperative recurrence of parastomal hernia repair.Methods:The clinical and follow-up data of 128 patients undergoing parastomal hernia repair at the the Central Hospital of Wuhan, Tongji Medical College of Huazhong University of Science and Technology from Jan 1, 2013 to Dec 31, 2022 was analyzed retrospectively.Results:Postoperative recurrence was confirmed in 32 patients during follow-up, and the recurrence rates were 13.8% , 24.8% and 25.0% at 1',3' and 5 years .Univariate analysis showed that body mass index (BMI) , chronic obstructive pulmonary disease (COPD), type of stoma, prophylactic stoma displacement, and surgical options were the risk factors for recurrence after parastomal hernia repair. Multiple Logistic regression analysis showed that BMI, COPD, prophylactic stoma displacement, and surgical options were independent risk factors for the recurrence after parastomal hernia ( P< 0.05). Conclusion:The occurrence of hernia recurrence after parastomal hernia repair is closely related to patients' BMI, COPD, prophylactic stoma displacement and the surgical options.
3.The application of MRI in preoperative differentiation of high-and low-risk thymoma
Babashi GULIMILA ; Chenyang DU ; Fangming WU ; Rifeng JIANG
Journal of Practical Radiology 2023;39(12):1945-1948,1956
Objective To explore the application of MRI in the differential diagnosis of high-and low-risk thymoma.Methods The data of patients with pathologically confirmed thymoma were collected bidirectionally,and the differences in clinical data,MRI image characteristics of lesions,signal characteristics and apparent diffusion coefficient(ADC)values were compared and analyzed between high-and low-risk thymoma according to the pathological subtype.The receiver operating characteristic(ROC)curve analysis was used to screen out meaningful features,then the diagnostic efficacy and combined prediction probability of indicators were evaluated.Results There was no significant difference in clinical data(P>0.001).The morphology of high-risk lesions was mainly irregular,while that of low-risk lesions was mainly regular.The edges of high-risk lesions were mostly not smooth,and the edges of low-risk lesions were mostly smooth.The enhancement degree of high-risk lesions was higher than that of low-risk lesions,and the ADC value was lower than that of low-risk lesions,with statistical significance(P<0.001),in which the ADC value area under the curve(AUC)was higher than other indicators(AUC=0.968),and the combined prediction probability of indicators was the highest(AUC=0.981).Conclusion MRI shows great potential application value in preoperative differential diagnosis of high-and low-risk thymoma.
4.Comparison of 2018 and 2009 FIGO staging system of cervical cancer and analysis of prognostic factors
Chenyang YUAN ; Juying ZHOU ; Xiao DU ; Huan JI ; Tianyi ZHAO
Journal of International Oncology 2022;49(3):151-163
Objective:To compare the differences in distribution and prognosis of cervical cancer patients in the 2009 and 2018 editions of International Federation of Gynecology and Obstetrics (FIGO) staging, and to analyze the prognostic factors of cervical cancer patients.Methods:The clinical data of 524 cervical cancer patients admitted to the First Affiliated Hospital of Soochow University from January 2010 to December 2018 were retrospectively analyzed. The cases were staged according to the 2009 and 2018 FIGO staging, and the Kendall τb coefficient was calculated to compare the consistency of the distribution of the two stages. Kaplan-Meier was used for survival analysis, and log-rank test was used to test the difference of prognosis in each stage. Cox-regression was used to analyze the prognostic factors of cervical cancer patients.Results:In the 2009 FIGO edition of staging, 1 case of stage ⅠB1 was reduced to stage ⅠA1 due to the microscopic infiltration depth <5 mm, 51 cases of stage ⅠB1 were raised to stage ⅠB2 due to 2 cm
5.Is hemostatic agent effective and safe in minimally invasive partial nephrectomy?
Qiong GUO ; Yifei LIN ; Chenyang ZHANG ; Fangqun LENG ; Youlin LONG ; Yifan CHENG ; Liu YANG ; Liang DU ; Jin HUANG ; Ga LIAO
Chinese Medical Journal 2022;135(17):2116-2118
6.Current status and future perspectives of metabolic network models of industrial microorganisms.
Chenyang ZHANG ; Yaokang WU ; Xianhao XU ; Xueqin LV ; Jianghua LI ; Guocheng DU ; Long LIU
Chinese Journal of Biotechnology 2021;37(3):860-873
Genome-scale metabolic network model (GSMM) is an extremely important guiding tool in the targeted modification of industrial microbial strains, which helps researchers to quickly obtain industrial microbes with specific traits and has attracted increasing attention. Here we reviewe the development history of GSMM and summarized the construction method of GSMM. Furthermore, the development and application of GSMM in industrial microorganisms are elaborated by using four typical industrial microorganisms (Bacillus subtilis, Escherichia coli, Corynebacterium glutamicum, and Saccharomyces cerevisiae) as examples. In addition, prospects in the development trend of GSMM are proposed.
Corynebacterium glutamicum/genetics*
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Escherichia coli/genetics*
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Metabolic Engineering
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Metabolic Networks and Pathways/genetics*
7.Analysis of curative effect after initial 131I treatment of familial differentiated thyroid cancer
Wenjuan HUA ; Yajing ZHANG ; Chengcheng DU ; Kun WANG ; Ruoling WU ; Min WANG ; Chenyang WANG ; Kai HE ; Zairong GAO
Chinese Journal of Nuclear Medicine and Molecular Imaging 2021;41(4):201-206
Objective:To explore the clinical pathological characteristics and initial 131I curative responses of familial differentiated thyroid cancer (FDTC) and sporadic differentiated thyroid cancer (SDTC). Methods:A total of 66 FDTC patients (19 males, 47 females, age (39.8±11.7) years) and 1 701 SDTC patients (442 males, 1 259 females, age (40.9±11.3) years) who underwent 131I therapy in Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology between January 2010 and August 2018 were retrospectively enrolled. The clinical pathological characteristics, preablative stimulated thyroglobulin (ps-Tg), preablative stimulated thyroglobulin antibody (ps-TgAb) and response to initial therapy (excellent response, indeterminate response, biochemical incomplete response, structural incomplete response) of two groups were analyzed and compared. The clinical pathological parameters included age, gender, pathological type, tumour maximum diameter, bilateral, multifoci, nodules goiter, thyroiditis, thyroid membrane invasion, lymph node metastasis (LNM), invasion of the surrounding soft tissues, distant metastasis, TNM staging and American Thyroid Association (ATA) risk stratification (low-risk, intermediate-risk, high-risk). χ2 test or Fisher exact test and independent-sample t test were used to compare the data between two groups. Results:Comparing with SDTC group, FDTC group showed higher proportion of bilateral foci (45.5%(30/66) vs 31.2%(530/1 701); χ2=5.999, P=0.010), thyroid membrane invasion (43.9%(29/66) vs 26.6%(452/1 701); χ2=9.672, P=0.002) and distant metastasis (15.2%(10/66) vs 6.2%(105/1 701); χ2=8.418, P=0.004). There was a statistical difference in risk stratification between two groups (high-risk: 18.2%(12/66) vs 9.2%(156/1 701); intermediate-risk: 68.2%(45/66) vs 72.7%(1 237/1 701); low-risk: 13.6%(9/66) vs 18.1%(308/1 701); χ2=6.898, P=0.030). But the tumor maximum diameter of FDTC group was smaller than that of SDTC group ((1.24±0.74) vs (1.50±0.92) cm; t=-2.275, P=0.020). There were no significant differences in other clinical pathological parameters between FDTC group and SDTC group ( t=-0.804, χ2 values: 0.101-5.359, all P>0.05). There were no significant differences between two groups in the postoperation ps-Tg, ps-TgAb levels and the response to initial therapy after 131I treatment ( χ2 values: 0.059-1.915, all P>0.05). Conclusions:The FDTC group displays distinct characteristics as increased aggressiveness at diagnosis. But after accurately treatment, there is no significant difference in the response to therapy between two groups.
8.The standardization construction and quality management of colorectal neoplasm tissue sample database in the era of precision medic
Jing WANG ; Chenyang GE ; Jianfei FU ; Wenxia XU ; Jinlin DU
Chinese Journal of Medical Science Research Management 2021;34(3):230-234
Objective:To establish a standard colorectal neoplasm tissue biobank with complete clinical information to provide high quality samples for fundamental and clinical research of colorectal neoplasm.Methods:Based on Affiliated Jinhua Hospital, Zhejiang University School of Medicine, to conduct structural design of colorectal neoplasm tissues, normal tissues and related information. Establish standard operating procedures from the collection and storage of tissue samples, standardize the entry of basic information, medical history, pathology and other relevant clinical information of the patients, and conduct random quality inspections on the pathological morphology and molecular level on a regular basis.Results:A tissue biobank of colorectal neoplasm was successfully constructed. During the establishment and improvement of this tissue biobank, standardized quality control was implemented during the whole-process including sample collection, warehousing, storage and delivery. According to the random sampling quality inspection, the RNA preservation effect was good, the rates of neoplasms in cancer tissue was >80%, and the clinical data of samples were complete.Conclusions:The preliminary construction of colorectal neoplasm tissue biobank not only improves the utilization value of tissue samples, but also provides a guarantee for realizing the bidirectional transformation of fundamental research and clinical application.
9.Effect of miR-223-3p regulates FOXO3a-mediated autophagy in hepatic ischemia-reperfusion injury
Xingxing WANG ; Hu SONG ; Chenyang DU ; Zhen WANG ; Jianjun ZHANG
Chinese Journal of Organ Transplantation 2020;41(7):423-429
Objective:To explore the effect of miR-223-3p regulating FOXO3a-mediated autophagy in hepatic injury-reperfusion injury (LIRI).Methods:The model of hepatic ischemia-reperfusion injury (IR) was established in C57BL6 mice. According to different reperfusion timepoints, mice were randomly divided into 2 h, 6 h, 12 h and 24 h group. For sham group, there was no intraoperative clamping of hepatic pedicle. Murine hepatic AML12 cells were treated with miR-223-3p mimics, miR-223-3p inhibitor and FOXO3a interfering RNA. A hypoxic 1 h reoxygenation 6 h model was established. And miRNA-NC, miR-223-3p mimics, miR-223-3p inhibitor and siRNA-NC and FOXO3a siRNA groups were assigned. Hepatic injury and apoptosis were detected by hematoxylin eosin or TdT-mediated nick end labeling (HE/TUNEL) at different timepoints. The changes of proliferating cell nuclear antigen (PCNA) and Caspase-3 in hepatocytes were detected by immunohistochemistry. Reverse transcription-polymerase chain reaction (RT-PCR) and Western blot were employed for detecting the expressions of miR-223-3p, FOXO3a, LC3, p62 and Caspase-3 in hepatocytes.Results:The results of HE/TUNEL indicated that reperfusion injury and apoptosis of hepatic tissue were most severe in 12 h group. In hepatic ischemia-reperfusion model, RT-PCR results showed that the expressions of miR-223-3p and FOXO3a were higher in IR group than those in sham group (1.00±0), the expression level of miR-223-3p mRNA peaked at 12 h (9.13±2.12) after reperfusion and FOXO3a was the highest at 6 h (5.23±0.90, P<0.05). Western blot showed that the expression of FOXO3a peaked at 6 h post-reperfusion and the expressions of LC3 and caspase-3 were the highest at 12 h. ( P<0.05). In the model of cell hypoxia and reoxygenation, RT-PCR indicated that the expression of FOXO3a mRNA decreased in miR-223-3p mimics group (0.45±0.21) as compared with miRNA-NC group (1.00±0). In contrast, miR-223-3p inhibitor group increased (2.73±0.53, P<0.05). Western blot indicated that FOXO3a protein expression was highest in miR-223-3p inhibitor and miR-223-3p mimics groups whereas LC3 and Caspase-3 were the highest in miR-223-3p mimics group ( P<0.05). The expression of FOXO3a was higher in siRNA-NC group than that in FOXO3a siRNA group while the expressions of Caspase-3 and LC3 were the higher in FOXO3a siRNA group. Conclusions:FOXO3a has protective effect on hepatic ischemia-reperfusion injury. It may be related to its inhibition of autophagy and apoptosis and miR-223-3p promotes injury through a down-regulation of FOXO3a-mediated autophagy. It suggests that miR-223-3p and FOXO3a are negatively correlated and may be potential gene therapeutic targets for hepatic injury.
10.MiRNA-30a-3p inhibits proliferation and metastasis of hepatocellular carcinoma cells by regulating caspase 1-mediated pyroptosis
Chenyang DU ; Hu SONG ; Xingxing WANG ; Zhen WANG ; Jianjun ZHANG
Chinese Journal of General Surgery 2018;33(11):920-923
Objective To investigate the role of miRNA-30a-3p on inhibiting the proliferation,invasion and metastasis of HCC cells by targeting Caspase 1 involved in pyroptosis.Methods The qRT-PCR and immunohistochemical staining were used to detect the expressions of miRNA-30a-3p and Caspase 1 in HCC cells.SMMC-7721 cells were transfected with miR-30a-3p agonists,inhibitors and Caspase 1-specific inhibitors.Western blot was obtained to detect the expression of EMT-related proteins (N-cadherin,vimentin,snail,MMP-2) and Caspase 1,IL-18 and IL-1β.Plate clone assay,CCK-8 kit and Transwell were carried out to detect the proliferation and immigration of HCC cells.Results Caspase 1 was highly expressed (t =17.54,P < 0.05) in HCC tissues.Overexpression of miR-30a-3p inhibited HCC cells proliferation and metastasis,while miR-30a-3p inhibition increased the proliferation and metastasis of HCC cells.Overexpression of miR-30a-3p decreased the expression of Caspase 1 (t =12.73,P < 0.05) and inhibited the induction of pyroptosis,inhibiting the expression of IL-18 (t =7.32,P < 0.05) and IL-1 β (t =7.32,P <0.05).When miRNA-30a-3p was inhibited,the cell viability of HCC was increased (F1 =9.57,P <0.05).When miRNA-30a-3p and Caspase 1 were inhibited together,the cell viability of HCC decreased (F2 =10.66,P < 0.05).Conclusion MiRNA-30a-3p regulate cell pyroptosis through Caspase 1 pathway,inhibiting the proliferation,invasion and metastasis of HCC cells.

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