1.High expression of CPNE3 correlates with poor long-term prognosis of gastric cancer by inhibiting cell apoptosis via activating PI3K/AKT signaling
Ting DUAN ; Zhen ZHANG ; Jinran SHI ; Linyu XIAO ; Jingjing YANG ; Lixia YIN ; Xiaofeng ZHANG ; Zhijun GENG ; Guoyu LU
Journal of Southern Medical University 2024;44(1):129-137
Objective To explore the correlation of CPNE3 expression with long-term prognosis of patients with gastric cancer(GC)and the possible mechanism.Methods We retrospectively collected the data of 104 GC patients undergoing radical surgery in our hospital from February,2013 to October,2017.TCGA database and immunohistochemistry were used to analyze CPNE3 expression level in GC tissues and its effects on tumor progression and long-term prognosis of the patients.GO analysis was performed to predict the biological role of CPNE3 in GC.We also conducted cell experiments with MGC803 cells and observed the effects of CPNE3 knockdown,CPNE3 overexpression and LY294002(a PI3K/AKT inhibitor)treatment on cell apoptosis and cellular expressions of apoptotic proteins using flow cytometry and Western blotting.Results TCGA analysis and immunohistochemistry both showed high expressions of CPNE3 in GC(P<0.05).The patients with high CPNE3 expressions had a reduced 5-year survival(P<0.01),and a high CPNE3 expression,CEA level≥5 μg/L,CA19-9 level≥37 kU/L,T3-T4 stage,and N2-N3 stage were all independent risk factors for a lowered 5-year survival rate after surgery.The sensitivity and specificity of CPNE3 for predicting 5-year mortality was 79.59%and 74.55%,respectively(P<0.05).GO analysis predicted that CPNE3 negatively regulated GC cell apoptosis.In MGC803 cells,CPNE3 knockdown significantly increased cell apoptosis,enhanced Bax and Cleaved Caspase-3 expressions and decreased Bcl-2 expression,while CPNE3 overexpression produced the opposite results(P<0.05).The cellular expressions of p-PI3K and p-AKT were significantly decreased following CPNE3 knockdown and increased following CPNE3 overexpression(P<0.05).Treatment with LY294002 obviously attenuated the inhibitory effect of CPNE3 overexpression on apoptosis of MGC803 cells(P<0.05).Conclusion CPNE3 is highly expressed in GC tissues and affects the long-term prognosis of the patients possibly by inhibiting GC cell apoptosis through activation of PI3K/AKT signaling.
2.High expression of CPNE3 correlates with poor long-term prognosis of gastric cancer by inhibiting cell apoptosis via activating PI3K/AKT signaling
Ting DUAN ; Zhen ZHANG ; Jinran SHI ; Linyu XIAO ; Jingjing YANG ; Lixia YIN ; Xiaofeng ZHANG ; Zhijun GENG ; Guoyu LU
Journal of Southern Medical University 2024;44(1):129-137
Objective To explore the correlation of CPNE3 expression with long-term prognosis of patients with gastric cancer(GC)and the possible mechanism.Methods We retrospectively collected the data of 104 GC patients undergoing radical surgery in our hospital from February,2013 to October,2017.TCGA database and immunohistochemistry were used to analyze CPNE3 expression level in GC tissues and its effects on tumor progression and long-term prognosis of the patients.GO analysis was performed to predict the biological role of CPNE3 in GC.We also conducted cell experiments with MGC803 cells and observed the effects of CPNE3 knockdown,CPNE3 overexpression and LY294002(a PI3K/AKT inhibitor)treatment on cell apoptosis and cellular expressions of apoptotic proteins using flow cytometry and Western blotting.Results TCGA analysis and immunohistochemistry both showed high expressions of CPNE3 in GC(P<0.05).The patients with high CPNE3 expressions had a reduced 5-year survival(P<0.01),and a high CPNE3 expression,CEA level≥5 μg/L,CA19-9 level≥37 kU/L,T3-T4 stage,and N2-N3 stage were all independent risk factors for a lowered 5-year survival rate after surgery.The sensitivity and specificity of CPNE3 for predicting 5-year mortality was 79.59%and 74.55%,respectively(P<0.05).GO analysis predicted that CPNE3 negatively regulated GC cell apoptosis.In MGC803 cells,CPNE3 knockdown significantly increased cell apoptosis,enhanced Bax and Cleaved Caspase-3 expressions and decreased Bcl-2 expression,while CPNE3 overexpression produced the opposite results(P<0.05).The cellular expressions of p-PI3K and p-AKT were significantly decreased following CPNE3 knockdown and increased following CPNE3 overexpression(P<0.05).Treatment with LY294002 obviously attenuated the inhibitory effect of CPNE3 overexpression on apoptosis of MGC803 cells(P<0.05).Conclusion CPNE3 is highly expressed in GC tissues and affects the long-term prognosis of the patients possibly by inhibiting GC cell apoptosis through activation of PI3K/AKT signaling.
3.First case of group X meningococcal disease in Hunan Province:case re-port and literature review
Ting-Xin YAO ; Fu-Rong LIU ; Geng-Ji XIAO ; Jing LIU
Chinese Journal of Infection Control 2023;22(12):1530-1533
The group X meningococcal disease is rare in China and developed countries.No related cases have been reported in Human Province.The disease progresses rapidly and leads to critical severity.Serious complica-tions may occur,if not treated actively.Group X Neisseria meningitidis(Nm X)vaccine has not yet obtained per-mission at present.This paper collects data on the symptoms,signs,auxiliary examinations,and treatment process of the first patient with severe group X meningococcal disease in Hunan Province,reviews relevant literatures,so as to improve clinicians'understanding on group X meningococcal disease,conduct early identification,diagnosis and treatment of the disease.
4.Mechanism of Qiyu Sanlong Prescription in Inhibiting "Addiction" of Lung Cancer A549 Cells to miRNA21
Xing-xing ZHANG ; Ya-ting GAO ; Xiao-le WANG ; Qin-jun YANG ; Tong LIU ; Jia-bing TONG ; Ze-geng LI
Chinese Journal of Experimental Traditional Medical Formulae 2021;27(11):35-41
Objective:To investigate the molecular mechanism of Qiyu Sanlong prescription (QYSL) in inhibiting the "addiction" of lung cancer A549 cells to miRNA21. Method:The human lung cancer A549 cells were routinely passaged and divided into the blank group, blank serum group, QYSL-containing serum group, and siRNA group. The prepared QYSL-containing serum was used for intervention, with the optimal concentration and action time determined in previous studies. The protein and mRNA expression levels of miRNA21 and related molecules in its target phosphatase and tensin homolog deleted on chromosome 10 (PTEN)/phosphatidylinositol 3-kinase (PI3K) signaling pathway were detected by real-time polymerase chain reaction (Real-time PCR) and Western blot assay. Result:The comparison with the blank serum group revealed that the mRNA expression levels of miRNA21 in the QYSL-containing serum group and the siRNA group were decreased, while the PTEN mRNA expression in the QYSL-containing serum group was increased, showing significant differences (
5.Framework and Core Content of World Health Organization Policy and Guidelines of Physical Activity
Jing LIU ; Fen QIU ; Zhuo-ying QIU ; Fu-bing QIU ; Guo-xiang WANG ; Geng CAI ; Jian YANG ; Chuan-ping HAO ; An-qiao LI ; Ting ZHU ; Shao-pu WANG ; Xiu-qi TANG ; Sheng ZHOU ; Meng ZHANG ; Bao-yi YANG ; Xiao HAN
Chinese Journal of Rehabilitation Theory and Practice 2021;27(12):1402-1411
Objective To study and analyze the theory, policy framework, and core content of physical activity policies and physical activity guidelines. Methods Using a policy research and content analysis approach and the theory of the six components of World Health Organization (WHO) health service system, we specifically analyze the theory, framework, and core content of WHO Global Action Plan on Physical Activity and WHO Physical Activity Guidelines. Results The Global Plan of Action for Physical Activity 2018-2030 (Action Plan) is an international policy document on physical activity issued by WHO that incorporates physical activity within the context of the seven principles of human rights, the life span, evidence-based practice, proportional universality, policy coherence and integration of health into all policies, participation and empowerment, and multisectoral partnerships into health services and social development. The Action Plan consists of four strategic objectives and 20 policy actions, covering six areas of WHO health service system, and the integration of physical activity policies into health services is of great importance in promoting the achievement of the United Nations Sustainable Development Goal 3 of universal health coverage. As a technical document for the implementation of the Action Plan, 2020 WHO Guidelines on Physical Activity and Sedentary Behavior (Guidelines) adopted the PI/ECO approach to analyze the physical activity needs of various groups of people, and provide guidelines to increase physical activity and reduce sedentary behavior for children and adolescents, adults, older adults, pregnant and postpartum women, people with chronic diseases and people with disabilities. The guidelines cover duration, frequency, and intensity of physical activity, types of physical activity, critical and important health outcomes of physical activity, and health risk prevention and related considerations. The Guidelines implement the relevant guiding principles of the Action Plan and aim to improve overall population participation in physical activity at the micro level and improve critical and important health outcomes for the overall population. Conclusion As a health and development strategy, the Action Plan promotes the integration of physical activity into the health delivery system to facilitate the achievement of the United Nations 2030 Sustainable Development Goal 3 of universal health coverage.The four strategic objectives and 20 policy actions of the Action Plan can be integrated into these six areas based on the six components of WHO Health Service Delivery System: leadership and governance, financing, human resources, service delivery, medical technology, and health information. As a technical document to implement the Action Plan, the Guidelines are based on the PI/ECO approach framework and provide guidance on increasing physical activity and reducing sedentary behavior for children and adolescents, adults, older adults, pregnant and postpartum women, chronic patients, and persons with disabilities. The core content addresses the target populations, duration, frequency, and intensity of physical activity, types of physical activity, critical and important health outcomes of physical activity, and health risk prevention and related considerations.
6.Effect of Qiyu Sanlong Decoction in Inducing Autophagy of A549 Cells by Regulating Molecular Expression Related to Signal Axis of mTOR-Beclin1-LC3
Ya-ting GAO ; Xin-heng WANG ; Xiao-le WANG ; Jian-chao CHENG ; Xing-xing ZHANG ; Jia-bing TONG ; Ze-geng LI
Chinese Journal of Experimental Traditional Medical Formulae 2021;27(1):98-104
Objective:To observe the effect of Qiyu Sanlong decoction (QYSL) on the expressions of key molecules in signal axis of mammalian rapamycin target protein (mTOR)/yeast Atg6 homologous (Beclin1)/ microtubule-associated protein1 light chain3 (LC3) in A549 cells. Method:With A549 cells as the research object, the effect of QYSL medicated serum on cell viability of A549 cells were detected by cell counting kit-8 (CCK-8) method. The effect of QYSL decoction on A549 cell apoptosis, autophagosome formation and the expression of autophagy markers were detected by Terminal-deoxynucleoitidyl transferase mediated nick end labeling (TUNEL) method, transmission electron microscope (TEM), Real-time polymerase chain reaction (Real-time PCR) and Western blot. Result:QYSL medicated serum could inhibit the viability of A549 cells in a concentration-dependent manner. Compared with the blank serum group, the number of apoptotic A549 cells in the QYSL medicated serum group was significantly increased (
7.Effects of different culture systems on the culture of prepuberal buffalo (Bubalus bubalis) spermatogonial stem cell-like cells in vitro
Ting Ting LI ; Shuang Shuang GENG ; Hui Yan XU ; Ao Lin LUO ; Peng Wei ZHAO ; Huan YANG ; Xing Wei LIANG ; Yang Qing LU ; Xiao Gan YANG ; Ke Huan LU
Journal of Veterinary Science 2020;21(1):e13-
Currently, the systems for culturing buffalo spermatogonial stem cells (SSCs) in vitro are varied, and their effects are still inconclusive. In this study, we compared the effects of culture systems with undefined (foetal bovine serum) and defined (KnockOut Serum Replacement) materials on the in vitro culture of buffalo SSC-like cells. Significantly more DDX4- and UCHL1-positive cells (cultured for 2 days at passage 2) were observed in the defined materials culture system than in the undefined materials system (p < 0.01), and these cells were maintained for a longer period than those in the culture system with undefined materials (10 days vs. 6 days). Furthermore, NANOS2 (p < 0.05), DDX4 (p < 0.01) and UCHL1 (p < 0.05) were expressed at significantly higher levels in the culture system with defined materials than in that with undefined materials. Induction with retinoic acid was used to verify that the cultured cells maintained SSC characteristics, revealing an SCP3⺠subset in the cells cultured in the defined materials system. The expression levels of Stra8 (p < 0.05) and Rec8 (p < 0.01) were significantly increased, and the expression levels of ZBTB16 (p < 0.01) and DDX4 (p < 0.05) were significantly decreased. These findings provided a clearer research platform for exploring the mechanism of buffalo SSCs in vitro.
8.Effects of different culture systems on the culture of prepuberal buffalo (Bubalus bubalis) spermatogonial stem cell-like cells in vitro
Ting Ting LI ; Shuang Shuang GENG ; Hui Yan XU ; Ao Lin LUO ; Peng Wei ZHAO ; Huan YANG ; Xing Wei LIANG ; Yang Qing LU ; Xiao Gan YANG ; Ke Huan LU
Journal of Veterinary Science 2020;21(1):e13-
Currently, the systems for culturing buffalo spermatogonial stem cells (SSCs) in vitro are varied, and their effects are still inconclusive. In this study, we compared the effects of culture systems with undefined (foetal bovine serum) and defined (KnockOut Serum Replacement) materials on the in vitro culture of buffalo SSC-like cells. Significantly more DDX4- and UCHL1-positive cells (cultured for 2 days at passage 2) were observed in the defined materials culture system than in the undefined materials system (p < 0.01), and these cells were maintained for a longer period than those in the culture system with undefined materials (10 days vs. 6 days). Furthermore, NANOS2 (p < 0.05), DDX4 (p < 0.01) and UCHL1 (p < 0.05) were expressed at significantly higher levels in the culture system with defined materials than in that with undefined materials. Induction with retinoic acid was used to verify that the cultured cells maintained SSC characteristics, revealing an SCP3⺠subset in the cells cultured in the defined materials system. The expression levels of Stra8 (p < 0.05) and Rec8 (p < 0.01) were significantly increased, and the expression levels of ZBTB16 (p < 0.01) and DDX4 (p < 0.05) were significantly decreased. These findings provided a clearer research platform for exploring the mechanism of buffalo SSCs in vitro.
9.Effects of different culture systems on the culture of prepuberal buffalo (Bubalus bubalis) spermatogonial stem cell-like cells in vitro
Ting Ting LI ; Shuang Shuang GENG ; Hui Yan XU ; Ao Lin LUO ; Peng Wei ZHAO ; Huan YANG ; Xing Wei LIANG ; Yang Qing LU ; Xiao Gan YANG ; Ke Huan LU
Journal of Veterinary Science 2020;21(1):13-
10. Expression of MicroRNA-7-5p in human colorectal cancer and its influence on proliferation and apoptosis of colon cancer cell CaCo2
Xiao-hong ZHANG ; Qiong NAN ; Xiu-fang WU ; Ting GENG
Journal of Medical Postgraduates 2020;33(1):67-71
Objective MicroRNAs are differentially expressed in colorectal cancer tumor tissues and adjacent normal tissues, which play an important role in the development of colorectal cancer. This study aims to investigate the expression of microRNA-7-5p in colorectal cancer patients and its influence on the proliferation and apoptosis of colon cancer cell CaCo2. Methods The high-throughput microarray was used to screen differentially expressed microRNAs, and real-time quantitative PCR (RT-PCR) was used to detect the expression of microRNA-7-5p in 10 cases of colorectal cancer patients and corresponding adjacent normal tissues. Western blot was performed to detect the expression of intestinal trefoil factor (TFF3) in different tissues and CaCo2 cells after transfection with microRNA-7-5p. The expression of TFF3 in different tissues and CaCo2 cells transfected with microRNA-7-5p was detected. TUNEL combined with flow cytometry was used to detect the apoptosis of CaCo2 cells after transfection. The CCK-8 assay was used to detect the proliferation of CaCo2 cells after transfection. Results The relative expression of MicroRNA-7-5p in colorectal cancer tissue was 0.409 ± 0.095, which was significantly lower than that of normal tissue adjacent to cancer (1.000 ± 0.014), and the difference was statistically significant (P <0.01). The relative expression of TFF3 in colorectal cancer tissues was significantly higher than that in normal adjacent tissues (P <0.01). The relative expression of TFF3 in CaCo2 cells decreased in the overexpressed microRNA-7-5p of the control group (0.729 ± 0.041). The proliferation ability (0.930 ± 0.007) was significantly lower in the blank control group (0.990 ± 0.005) (P <0.01), and it could increase the proportion of early apoptotic cells (50.700 ± 0.989) and late apoptotic cells (40.525 ± 0.515). Conclusion MicroRNA-7-5p is lowly expressed in colorectal cancer and is associated with the occurrence and development of colorectal cancer. Up-regulated microRNA-7-5p inhibits the proliferation of colon cancer cell CaCo2 and promotes its apoptosis.

Result Analysis
Print
Save
E-mail