1.Disrupting calcium homeostasis and glycometabolism in engineered lipid-based pharmaceuticals propel cancer immunogenic death.
Qiuxia PENG ; Xiaolong LI ; Chao FANG ; Chunyan ZHU ; Taixia WANG ; Binxu YIN ; Xiulin DONG ; Huaijuan GUO ; Yang LIU ; Kun ZHANG
Acta Pharmaceutica Sinica B 2025;15(3):1255-1267
Homeostasis and energy and substance metabolism reprogramming shape various tumor microenvironment to sustain cancer stemness, self-plasticity and treatment resistance. Aiming at them, a lipid-based pharmaceutical loaded with CaO2 and glucose oxidase (GOx) (LipoCaO2/GOx, LCG) has been obtained to disrupt calcium homeostasis and interfere with glycometabolism. The loaded GOx can decompose glucose into H2O2 and gluconic acid, thus competing with anaerobic glycolysis to hamper lactic acid (LA) secretion. The obtained gluconic acid further deprives CaO2 to produce H2O2 and release Ca2+, disrupting Ca2+ homeostasis, which synergizes with GOx-mediated glycometabolism interference to deplete glutathione (GSH) and yield reactive oxygen species (ROS). Systematical experiments reveal that these sequential multifaceted events unlocked by Ca2+ homeostasis disruption and glycometabolism interference, ROS production and LA inhibition, successfully enhance cancer immunogenic deaths of breast cancer cells, hamper regulatory T cells (Tregs) infiltration and promote CD8+ T recruitment, which receives a considerably-inhibited outcome against breast cancer progression. Collectively, this calcium homeostasis disruption glycometabolism interference strategy effectively combines ion interference therapy with starvation therapy to eventually evoke an effective anti-tumor immune environment, which represents in the field of biomedical research.
2.RBMX overexpression inhibits proliferation,migration,invasion and glycolysis of human bladder cancer cells by downregulating PKM2
Qiuxia YAN ; Peng ZENG ; Shuqiang HUANG ; Cuiyu TAN ; Xiuqin ZHOU ; Jing QIAO ; Xiaoying ZHAO ; Ling FENG ; Zhenjie ZHU ; Guozhi ZHANG ; Hong HU ; Cairong CHEN
Journal of Southern Medical University 2024;44(1):9-16
Objective To investigate the role of RNA-binding motif protein X-linked(RBMX)in regulating the proliferation,migration,invasion and glycolysis in human bladder cancer cells.Methods A lentivirus vectors system and RNA interference technique were used to construct bladder cancer 1376 and UC-3 cell models with RBMX overexpression and knockdown,respectively,and successful cell modeling was verified using RT-qPCR and Western blotting.Proliferation and colony forming ability of the cells were evaluated using EdU assay and colony-forming assay,and cell migration and invasion abilities were determined using Transwell experiment.The expressions of glycolysis-related proteins M1 pyruvate kinase(PKM1)and M2 pyruvate kinase(PKM2)were detected using Western blotting.The effects of RBMX overexpression and knockdown on glycolysis in the bladder cancer cells were assessed using glucose and lactic acid detection kits.Results RT-qPCR and Western blotting confirmed successful construction of 1376 and UC-3 cell models with RBMX overexpression and knockdown.RBMX overexpression significantly inhibited the proliferation,clone formation,migration and invasion of bladder cancer cells,while RBMX knockdown produced the opposite effects.Western blotting results showed that RBMX overexpression increased the expression of PKM1 and decreased the expression of PKM2,while RBMX knockdown produced the opposite effects.Glucose consumption and lactate production levels were significantly lowered in the cells with RBMX overexpression(P<0.05)but increased significantly following RBMX knockdown(P<0.05).Conclusion RBMX overexpression inhibits bladder cancer progression and lowers glycolysis level in bladder cancer cells by downregulating PKM2 expression,suggesting the potential of RBMX as a molecular target for diagnosis and treatment of bladder cancer.
3.RBMX overexpression inhibits proliferation,migration,invasion and glycolysis of human bladder cancer cells by downregulating PKM2
Qiuxia YAN ; Peng ZENG ; Shuqiang HUANG ; Cuiyu TAN ; Xiuqin ZHOU ; Jing QIAO ; Xiaoying ZHAO ; Ling FENG ; Zhenjie ZHU ; Guozhi ZHANG ; Hong HU ; Cairong CHEN
Journal of Southern Medical University 2024;44(1):9-16
Objective To investigate the role of RNA-binding motif protein X-linked(RBMX)in regulating the proliferation,migration,invasion and glycolysis in human bladder cancer cells.Methods A lentivirus vectors system and RNA interference technique were used to construct bladder cancer 1376 and UC-3 cell models with RBMX overexpression and knockdown,respectively,and successful cell modeling was verified using RT-qPCR and Western blotting.Proliferation and colony forming ability of the cells were evaluated using EdU assay and colony-forming assay,and cell migration and invasion abilities were determined using Transwell experiment.The expressions of glycolysis-related proteins M1 pyruvate kinase(PKM1)and M2 pyruvate kinase(PKM2)were detected using Western blotting.The effects of RBMX overexpression and knockdown on glycolysis in the bladder cancer cells were assessed using glucose and lactic acid detection kits.Results RT-qPCR and Western blotting confirmed successful construction of 1376 and UC-3 cell models with RBMX overexpression and knockdown.RBMX overexpression significantly inhibited the proliferation,clone formation,migration and invasion of bladder cancer cells,while RBMX knockdown produced the opposite effects.Western blotting results showed that RBMX overexpression increased the expression of PKM1 and decreased the expression of PKM2,while RBMX knockdown produced the opposite effects.Glucose consumption and lactate production levels were significantly lowered in the cells with RBMX overexpression(P<0.05)but increased significantly following RBMX knockdown(P<0.05).Conclusion RBMX overexpression inhibits bladder cancer progression and lowers glycolysis level in bladder cancer cells by downregulating PKM2 expression,suggesting the potential of RBMX as a molecular target for diagnosis and treatment of bladder cancer.
4.Recent advance in quantitative MRI in glymphatic systems of the brain
Yali ZHAO ; Hongyu WU ; Linhan ZHAI ; Weiqiang LIANG ; Huan LIU ; Chengdong PENG ; Qiuxia WANG ; Jing ZHANG
Chinese Journal of Neuromedicine 2022;21(3):316-320
The glymphatic system, as "waste" clearance pathway in the brain, plays a critical role in maintaining the homeostasis of the brain cell microenvironment. It has been found that changes in the glymphatic system are common in many neurological diseases. MRI is currently the only technology that can achieve human glymphatic imaging, and has the advantages of high soft tissue resolution and sensitivity to tracers. Quantitative MRI can objectively evaluate the changes of inflow and outflow of glymphatic system. Therefore, in this review, we introduce the application of quantitative MRI technology in the glymphatic system in detail, aiming to provide help for the diagnosis and treatment of diseases related to glymphatic system.
5.Design and Application of Intelligent Follow-up Visit Management System of Hospitals
Sheng LI ; Dongfa HU ; Senyuan LI ; Qi LIN ; Jun PENG ; Yudong ZHNAG ; Liliu DENG ; Qiuxia ZHANG
Journal of Medical Informatics 2017;38(4):24-27
Taking the First Hospital Affiliated to Traditional Chinese Medicine University of Guangzhou as an example,the paper puts forward to establish the hospital's intelligent Short Message Service (SMS) follow-up visit system based on the analysis of research conditions and existing problems of domestic and overseas follow-up visit system,introduces the follow-up visit registration process and functional modules,and summarizes the application efficiency.This system can greatly improve the follow-up visit efficiency,reduce the rate of loss to follow-up visit,and immediately update information of patients.
6.The correlation between the labial (buccal)bone thickness and alveolar crest height in maxillary anterior teeth and premolar zone
Peng ZHANG ; Xiaoshi JIA ; Qiuxia ZHANG ; Xiaoxia WEI ; Mengjie XU ; Meng WANG
Journal of Practical Stomatology 2015;(4):488-492
Objective:To investigate the labial(buccal)bone thickness at alveolar crest zone and alveolar crest height of the maxil-lary anterior teeth and premolars of young adults with normal occlusion.Methods:The alveolar bone of the anterior teeth and premo-lars of 67 eligible Han national young volunteers was scanned by CBCT.Then the facial bone thickness and the distance between the facial alveolar crest and Cemento-enamel Junction(CEJ)of the anterior teeth and premolars were measured and analyzed after recon-struction.Results:The distance between labial (buccal)crest and labial (buccal)CEJ of the maxillary first premolars was the lar-gest(P <0.05);there was a negative correlation between the labial(buccal)crest height and the facial alveolar bone thickness at 2 mm from CEJ toward root derection[(P <0.05),0.6 <|r|<0.8].Conclusion:The labial (buccal)crest of the first premolars was higher than that of other teeth in maxillary aesthetic zone.At alveolar crest zone,when the labial (buccal)bone was thinner,the dis-tance between labial (buccal)crest and labial (buccal)CEJ was larger,and the implant aesthetic risk is higher.
7.Efficacy of Trimebutine Combined with Mosapride on Functional Dyspepsia
Yingbin HU ; Jueping FENG ; Na PENG ; Fei LV ; Qiuxia GUO
Herald of Medicine 2014;(7):887-890
Objective To evaluate the efficacy and safety of trimebutine combined with mosapride on functional dyspepsia. Methods Patients with functional dyspepsia were randomly divided into three clinical groups. Group A (n=116) received 0.2 g trimebutine after meal,group the drug combination B (n=116) received 5 mg mosapride before meal,and the drug combination group (n=115) received 0. 2 g trimebutine after meal plus 5 mg mosapride before meal. All medications were taken orally three times daily for 4 weeks. Improvement in clinical symptoms and adverse reactions in each group were evaluated at the end of study. Results A total of 339 patients among 347 enrollees completed the treatment and follow-up. The clinical efficacy on postprandial fullness, early satiation, epigastric pain, epigastric burning, upper abdominal bloating and nausea were 88. 4%,76. 9%,72. 9%,61. 8%,86. 7% and 81. 7%,respectively in the drug combination group after 4-week treatment,which were superior to those in group A or B (P<0. 05) except for epigastric burning. The total effective rate of the drug combination group was 78. 8%,significantly higher than the other two groups (P<0. 05). The total incidence of side effects in the drug combination group was 1. 8%,similar to that of group A and B (1. 8% and 0. 9%,respectively, P =0. 776). Conclusion Trimebutine combined with mosapride is safe and effective for improving symptoms in functional dyspepsia.

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