1.Metabolic reprogramming nanomedicine potentiates colon cancer sonodynamic immunotherapy by inhibiting the CD39/CD73/ADO pathway.
Yuanyuan ZHANG ; Weiwei JIN ; Zhichao DENG ; Bowen GAO ; Yuanyuan ZHU ; Junlong FU ; Chenxi XU ; Wenlong WANG ; Ting BAI ; Lianying JIAO ; Hao WU ; Mingxin ZHANG ; Mingzhen ZHANG
Acta Pharmaceutica Sinica B 2025;15(5):2655-2672
Sonodynamic therapy (SDT) can potentially induce immunogenic cell death in tumor cells, leading to the release of ATP, and facilitating the initiation of an immune response. Nevertheless, the enzymes CD39 and CD73 can swiftly convert ATP into immunosuppressive adenosine (ADO), resulting in an immunosuppressive tumor microenvironment (TME). This study introduced a nanomedicine (QD/POM1@NP@M) engineered to reprogram TME by modulating the CD39/CD73/ADO pathway. The nanomedicine encapsulated sonosensitizers silver sulfide quantum dots, and the CD39 inhibitor POM1, while also incorporating homologous tumor cell membranes to enhance targeting capabilities. This integrated approach, on the one hand, stimulates the release of ATP via SDT, thereby initiating the immune response. In addition, it reduced the accumulation of ADO by inhibiting CD39 activity, which ameliorated the immunosuppressive TME. Upon administration, the nanomedicine demonstrated substantial anti-tumor efficacy by facilitating the infiltration of anti-tumor immune cells, while reducing the immunosuppressive cells. This modulation effectively transformed the TME from an immunologically "cold" state to a "hot" state. Furthermore, combined with the checkpoint inhibitor α-PDL1, the nanomedicine augmented systemic anti-tumor immunity and promoted the establishment of long-term immune memory. This study provides an innovative strategy for combining non-invasive SDT and ATP-driven immunotherapy, offering new ideas for future cancer treatment.
2.Vismodegib regulates microenvironment of basal cell carcinoma via BRD9-mediated Hedgehog and PD-L1 signaling
Hao WANG ; Lei ZHANG ; Junlong LI ; Xintong LI ; Meiyan SUN
Journal of Army Medical University 2025;47(21):2641-2651
Objective To investigate how vismodegib(Vis)influences the pathogenesis of basal cell carcinoma(BCC)via a chromatin remodeling factor,bromodomain containing protein 9(BRD9),and to analyze the expression profile of BRD9 in BCC and its relationship with the immune checkpoint,programmed cell death-1 ligand 1(PD-L1)and the Hedgehog(Hh)signaling pathway.Methods ① A UVB-induced BCC model was established in SKH-1 hairless background Ptch1+/-;LacZ reporter mice.Then the mice were treated with Vis,and those without treatment served as control.X-gal staining,immunohistochemistry(IHC)staining,immunofluorescence(IF)assay,and Western blotting were used to assess the expression and localization of BRD9 and PD-L1 in tumor tissues and to evaluate immune-cell infiltration.② In vitro,mouse BCC cell line ASZ001(ASZ cells)were treated with Vis or a BRD9 degrader(dBRD9),and BRD9-overexpressing cells were generated.Cell viability and the protein and mRNA levels of BRD9,PD-L1,Gli1,and cyclin D1(Ccnd1)were measured.ChIP-qPCR was performed to examine BRD9 and H3K27ac enrichment at the PD-L1 promoter,including the promoter-proximal site(P1)and an upstream active segment(P2).Results ① At the tissue level,BRD9 was highly expressed in BCC,and co-localization of BRD9 and PD-L1 was observed within tumor regions,with evident immune-cell infiltration.Vis markedly suppressed UVB-induced BCC formation,reduced the probability of large-volume tumors(by probability-density analysis),decreased the X-gal-positive lesion area(P<0.000 1),down-regulated BRD9(P=0.024 9),and attenuated immune-cell infiltration.② At the cellular level,Vis treatment reduced cell viability and down-regulated BRD9,Gli1,and Ccnd1 in ASZ cells(P<0.000 1).dBRD9 inhibited ASZ cell viability in a dose-dependent manner and decreased PD-L1,Gli1,and Ccnd1(P<0.000 1),whereas its overexpression increased the expression of these molecules(P<0.000 1).In ASZ cells,BRD9 and H3K27ac were enriched at the PD-L1 promoter P1/P2 regions.Treatment with dBRD9 or Vis reduced BRD9 and H3K27ac enrichment at P1/P2 regions(P<0.000 1).Conclusion In BCC,BRD9 maintains chromatin activation at the proximal PD-L1 promoter and modulates Hh/Gli1 signaling,thereby promoting immune evasion.Vis remodels the tumor immune microenvironment by inhibiting the Hh-BRD9-PD-L1 axis.
3.Complete transcatheter versus surgical aortic valve replacement for aortic valve stenosis with coronary artery disease: A propensity score matching study
Zhihua WANG ; Zeyuan ZHAO ; Junlong HU ; Yaojue SONG ; Chenyi CUI ; Jiahui LI ; Jianchao LI ; Zhaoyun CHENG
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2025;32(12):1708-1715
Objective To compare and analyze the early- to mid-term outcomes of transcatheter aortic valve replacement (TAVR) combined with percutaneous coronary intervention (PCI) versus surgical aortic valve replacement (SAVR) combined with coronary artery bypass grafting (CABG) for the treatment of significant aortic stenosis (AS) and coronary artery disease (CAD). Methods The data of patients with significant AS and CAD who underwent surgical treatment at Central China Fuwai Hospital of Zhengzhou University from January 2018 to July 2023 were collected. These patients were divided into a TAVR+PCI group and a SAVR+CABG group according to the operation method. Propensity score matching (PSM) was used to select patients with close clinical baseline characteristics, and the early- to mid-term outcomes of the two groups were compared. Results A total of 272 patients were enrolled, including 208 males and 64 females, with a mean age of (64.16±8.24) years. There were 47 patients in the TAVR+PCI group and 225 patients in the SAVR+CABG group. After 1 : 1 PSM, 32 pairs were selected. There was no statistical difference in baseline data between the two groups (P>0.05). Compared with the SAVR+CABG group, the TAVR+PCI group had significantly shorter operative time, mechanical ventilation time, ICU stay, postoperative hospital stay, and less intraoperative bleeding, and significantly lower postoperative transfusion and complete revascularization rates (P<0.05). The differences in the rates of postoperative in-hospital death, myocardial infarction, stroke, or other complications between the two groups were not statistically significant (P>0.05), and the differences in the rates of moderate-to-severe perivalvular leakage, death, or readmission in the mid-term follow-up were not statistically significant (P>0.05). Conclusion In patients with significant AS and CAD, the early- and mid-term rates of death and complications are similar between those treated with TAVR+PCI and SAVR+CABG, and TAVR+PCI is a safe alternative to SAVR+CABG.
4.Prognostic analysis of genes related to pyroptosis in prostate cancer cells and the regulatory role of NLRP1
Xiaolu MA ; Jiaqin CHEN ; Junlong FENG ; Qi ZHAO ; Bin WANG
Journal of Modern Urology 2025;30(1):73-81
[Objective] To analyze the prognostic value of prostate cancer (PCa) pyroptosis-related genes (PRGs) using gene expression databases and to explore the regulatory mechanism of nucleotidebinding oligomerization domain-like receptor containing pyrin domain 1 (NLRP1) in the pyroptosis of PCa cells. [Methods] Fragments per kilobase of exon model per million reads mapped (FPKM) data and clinical information from PCa and adjacent tissues from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) were obtained. Differentially expressed PRGs between PCa and adjacent tissues, classified subtypes and plotted survival curves were analyzed. Univariate Cox regression analysis, least absolute shrinkage and selection operator (LASSO) regression analysis were conducted to screen prognosis-related PRGs, risk scores were calculated, and a prognostic risk model was constructed and validated. Patients were divided into high and low risk groups based on the median risk scores from the training and validation sets, and gene ontology (GO) enrichment and kyoto encyclopedia of genes and genomes (KEGG) analysis were conducted on differentially expressed PRGs. Quantitative real-time polymerase chain reaction (qRT-PCR) was used to detect the expression level of NLRP1 in PCa cell lines, and pyroptosis was induced in DU145 and LNCaP cells while morphological changes were observed. Western blot (WB) was performed to detect the expression of pyroptosis-related molecules. [Results] A total of 6 prognostic-related PRGs were obtained, including CHMP4C, CYCS, GPX4, GSDMB, NLRP1, and PLCG1. The risk score was positively correlated with the risk of recurrence but negatively correlated with the progression-free survival (P<0.001). The area under the receiver operating characteristic curves (AUCs) for the training set at 1, 3, and 5 years were 0.769 (95%CI: 0.652-0.878), 0.804 (95%CI: 0.736-0.882), and 0.772 (95%CI: 0.631-0.905), respectively, while those for the validation set were 0.731 (95%CI: 0.647-0.826), 0.753 (95%CI: 0.674-0.818), and 0.763 (95%CI: 0.626-0.849), respectively. Differences in expression levels of the 6 PRGs were observed between the high and low risk groups in both the training and validation sets (P<0.05). Cox regression analysis showed that T stage, prostate specific antigen (PSA), Gleason grade, and risk score were independent predictors of PCa prognosis (P<0.05). Differences in risk scores were observed among patients of different ages, T stages, and Gleason grades (P<0.05). NLRP1 was found to be lowly expressed in PCa cell lines and was involved in the regulation of pyroptosis in DU145 and LNCaP cells. [Conclusion] The prognostic risk model constructed based on PRGs has a certain predictability for the prognosis of PCa patients, and NLRP1 may be involved in the regulation of pyroptosis in PCa cells.
5.Dihuang Yinzi Improves Cognitive Function of Mouse Model of Learning and Memory Impairments by Regulating Synaptic Plasticity via SIRT2
Wenting WANG ; Yangjing HAO ; Wenna SU ; Qinqing LI ; Shifeng CHU ; Junlong ZHANG ; Wenbin HE
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(6):9-17
ObjectiveTo investigate the effects of Dihuang Yinzi on the cognitive function in the mouse model of learning and memory impairments induced by scopolamine (SCOP) and explore the treatment mechanism. MethodsA mouse model of learning and memory impairment was induced by intraperitoneal injection of SCOP. Sixty male C57BL/6J mice were randomized into six groups: control (0.9% NaCl, n=10), model (SCOP 1 mg·kg-1·d-1, n=10), low-, medium-, and high-dose Dihuang Yinzi (SCOP 1 mg·kg-1·d-1 + Dihuang Yinzi 5.5, 11.0, and 22.0 g·kg-1·d-1, n=10), and donepezil (SCOP 1 mg·kg-1·d-1 + donepezil 0.84 mg·kg-1·d-1, n=10). Mice were administrated with corresponding drugs for 6 weeks. Modeling started in the 4th week, and mice in other groups except the control group were injected with SCOP intraperitoneally 40 min after daily gavage. Behavioral testing began in the 5th week, 30 min after modeling each day. The Morris water maze and novel object recognition tests were carried out to evaluate the spatial learning and memory function of mice. Nissl staining was employed to observe the survival of neurons and Nissl bodies in the hippocampal CA1 region. Western blot was employed to determine the protein levels of silent information regulator 2 (SIRT2), α-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid (AMPA) receptor 1 (GluA1), protein kinase A (PKA), cAMP response element-binding protein (CREB), phosphorylated-CREB (p-CREB), postsynaptic density protein 95 (PSD95), growth-associated protein-43 (GAP-43), and synaptophysin (SYN) in the hippocampus. Immunofluorescence was used to detect the expression of doublecortin (DCX) in the hippocampal dentate gyrus (DG) region. ResultsCompared with the control group, the model group showed impaired learning and memory (P<0.01), obvious neuronal damage in the hippocampal CA1 region, a reduction in neuron survival (P<0.01), a decrease in DCX expression in the hippocampal DG region (P<0.01), down-regulated proteins levels of GluA1, PKA, p-CREB/CREB, PSD95, SYN, and GAP-43 in the hippocampal tissue (P<0.05, P<0.01), and an up-regulated protein level of SIRT2 (P<0.01). Compared with the model group, the medium- and high-dose Dihuang Yinzi groups and the donepezil group showed improvements in learning and memory (P<0.05, P<0.01), while the low-, medium-, and high-dose Dihuang Yinzi groups and the donepezil group had increased neuron survival (P<0.05, P<0.01). The medium-dose Dihuang Yinzi group and the donepezil group showed increased DCX expression (P<0.05, P<0.01). The medium- and high-dose Dihuang Yinzi groups and the donepezil group showed up-regulation in the protein levels of GluA1, PKA, p-CREB/CREB, PSD95, SYN, and GAP-43 (P<0.05, P<0.01) and down-regulation in the protein level of SIRT2 (P<0.01). ConclusionDihuang Yinzi can improve the cognitive function in the mouse model of learning and memory impairments induced by SCOP by inhibiting the upregulation of SIRT2, activating the PKA/CREB signaling pathway, improving synaptic plasticity, and reducing hippocampal neuronal damage.
6.Retinal artery occlusion during carotid artery stenting:a case report
Wenzhe WANG ; Zhuangzhuang ZHANG ; Haowei WANG ; Junlong SHU ; Haiqiang JIN ; Weiping SUN
Chinese Journal of Cerebrovascular Diseases 2025;22(8):566-569
Retinal artery occlusion(RAO)is a vascular neuro-ophthalmological emergency and a rare but serious complication of carotid artery stenting(CAS).It is characterized by a sudden decrease in vision or even vision loss in one eye.This article reports a case of central RAO caused by emboli through a branch of the external carotid artery during CAS,aiming to provide insights for optimizing CAS procedures,and preventing and controlling this complication.
7.Relationship between type 2 diabetes mellitus and cognitive decline:a 4-year prospective cohort study
Liangjun DANG ; Yi ZHAO ; Ling GAO ; Shan WEI ; Chen CHEN ; Junlong FENG ; Jin WANG ; Kang HUO ; Qiumin QU ; Suhang SHANG
Journal of Xi'an Jiaotong University(Medical Sciences) 2025;46(5):749-754
Objective To investigate the relationship between type 2 diabetes mellitus(T2DM)and cognitive decline.Methods Data were obtained from the cognitive impairment cohort of middle-aged and elderly population in rural areas of Xi'an City.The cohort consisted of residents aged 40 years and older in two villages of Huyi District,Xi'an.The baseline survey was completed between October 2014 and March 2015,with two follow-up visits in 2016 and 2018.The present study was conducted on cognitively normal people at baseline.Individual characteristics,lifestyle,and medical history were collected;physical and biochemical examinations were completed.According to medical history of T2DM and fasting blood glucose,the study population was divided into non-T2DM group,pre-existing T2DM group,and new-onset T2DM group.The Mini-Mental State Examination(MMSE)was used to assess global cognitive function.Participants with a drop of≥2 points in MMSE score from baseline after 4 years were defined as having cognitive decline.Chi-square test and multivariate Logistic regression analysis were employed to analyze the effect of T2DM status on the risk of cognitive decline.Results A total of 1 350 subjects completed the follow-up.In the follow-up population,1 096(81.2%)were free of T2DM,158(11.7%)already had T2DM at baseline,and 96(7.1%)developed new-onset T2DM during the follow-up.Cognitive decline was observed in 230 individuals after 4 years,representing 17.0%of the study population.The new-onset T2DM group had the highest 4-year incidence of cognitive decline(non-T2DM group vs.pre-existing T2DM group vs.new-onset T2DM group:15.7%vs.20.9%vs.26.0%,P=0.014),and the incidence of cognitive decline in the newly-onset T2DM group was significantly higher than that in the non-T2DM group(P=0.009).Multivariate Logistic regression analysis showed that the new-onset T2DM group had an increased risk of cognitive decline compared with the non-T2DM group within 4 years(OR=1.726,95%CI:1.029-2.896,P=0.039).However,no significant difference in 4-year risk of cognitive decline in the pre-existing T2DM group was observed(OR=1.402,95%CI:0.890-2.210,P=0.145).Conclusion Through the 4-year follow-up study of cognitively normal adults aged 40 and above in rural Xi'an,it was found that new-onset T2DM patients face a significantly elevated risk of cognitive decline,suggesting that cognitive decline may occur in the early stage of T2DM.
8.MiR-362-3p regulates the proliferation,migration and invasion of esophageal cancer cells by targeting dual specificity phosphatase 10
Yong JIA ; Junlong SHEN ; Chao FAN ; Junqi WANG
Journal of Clinical Surgery 2025;33(3):256-260
Objective To investigate the effects of miR-362-3p on the proliferation,migration and invasion of esophageal cancer EC9706 cells and its molecular mechanism.Methods The cancerous tissues and adjacent tissues of 30 patients with esophageal cancer from January 2018 to January 2020 were selected,and human normal esophageal epithelial cells HET-1 A and esophageal cancer cells EC9706,TE10,KYSE-140,KYSE-150 were cultured in vitro.Real-time fluorescence quantitative PCR(RT-qPCR)was used to detect the expression levels of miR-362-3p and dual specificity phosphatase 10(DUSP10)mRNA in tissues and cells.EC9706 cells were divided into NC group(normally cultured),miR-NC group(transfected miR-362-3p mimic NC)and miR-362-3p group(transfected miR-362-3p mimic),si-NC group(transfected with DUSP10 siRNA NC),si-DUSP10 group(transfected with DUSP10 siRNA),miR-362-3p+pcDNA group(co-transfected with miR-362-3p mimic and pcDNA3.1-DUSP10 NC)and miR-362-3p+pcDNA-DUSP10 group(co-transfected with miR-362-3p mimic and pcDNA3.1-DUSP10).The expression levels of miR-362-3p and DUSP10 mRNA in each group were detected by RT-qPCR.Cell proliferation activity was detected by MTT assay.Cell migration and invasion were detected by Transwell assay.The expressions of DUSP10,CyclinD1,p21,matrix metalloproteinase(MMP)-2 and MMP-9 were detected by Western blot.Dual luciferase reporter gene assay was used to detect the targeting relationship between miR-362-3p and DUSP10.Results The expression of miR-362-3p was high and DUSP10 was low in esophageal cancer tissues and cells.Overexpression of miR-362-3p or knockdown of DUSP10 expression significantly reduced the activity,migration and invasion number and the expression of CyclinD1,MMP-2 and MMP-9,and significantly increased the expression of p21 in EC9706 cells(P<0.05).miR-362-3p targeted the expression of DUSP10(P<0.05).And up-regulation of DUSP10 expression partially reversed the effects of overexpression of miR-362-3p on the proliferation,migration and invasion of EC9706 cells(P<0.05).Conclusion miR-362-3p can inhibit the proliferation,migration and invasion of EC9706 cells by down-regulating the expression of DUSP10.
9.Efficacy of voriconazole in the treatment of pulmonary tuberculosis complicated with chronic pulmonary aspergillosis based on CYP2C19 gene polymorphism detection and the factors affecting the efficacy
Yonggang CHEN ; Mingli YU ; Ji LUO ; Wenlin ZHANG ; Jintang HE ; Qiqi XIAO ; Junlong WANG ; Jiangli PENG
Chinese Journal of Infection and Chemotherapy 2025;25(2):132-139
Objective To investigate the efficacy of voriconazole in the treatment of pulmonary tuberculosis complicated with chronic pulmonary aspergillosis(CPA)based on CYP2C19 gene polymorphism detection and examine the factors affecting the efficacy for improving targeted therapy in clinical practice.Methods A total of 207 patients with pulmonary tuberculosis complicated with CPA treated in the Third People's Hospital of Kunming from December 2018 to November 2022 were randomly assigned to an observation group(105 cases)or a control group(102 cases).The patients in the control group received standard voriconazole treatment,while the patients in the observation group had their voriconazole regimen tailored based on CYP2C19 genotyping results.Plasma drug concentration levels,efficacy,and safety were compared between the two groups and in terms of CYP2C19 genotypes.Logistic regression analysis was used to identify the factors affecting treatment efficacy.Results The observation group showed significantly higher plasma voriconazole concentrations and overall antifungal efficacy compared to the control group(P<0.05).In the observation group,CYP2C19 genotyping identified 37 extensive metabolizers(EM),47 intermediate metabolizers(IM),and 21 poor metabolizers(PM).Plasma concentration of voriconazole did not show significant difference between EM and IM(P>0.05),but both PM and IM were associated with significantly lower plasma concentration of voriconazole than PM(P<0.05).The clinical efficacy rate was 100%for PM,91.5%for IM,and 83.8%for EM(P<0.05).The incidence of adverse events did not show significant difference among the three genotypes(P>0.05).Logistic regression analysis revealed that lung cavitation,hypoalbuminemia,and agranulosis were significantly correlated with therapeutic efficacy(P<0.05).Conclusions CYP2C19 gene polymorphism detection is valuable in clinical practice.It can inform anti-aspergillus therapy with voriconazole to effectively improve symptoms and clinical efficacy in patients with pulmonary tuberculosis complicated with CPA.Meanwhile,clinicians should be aware of the factors such as hypoproteinemia,agranulocytosis,and lung cavitation that may affect the efficacy of voriconazole.
10.MiR-362-3p regulates the proliferation,migration and invasion of esophageal cancer cells by targeting dual specificity phosphatase 10
Yong JIA ; Junlong SHEN ; Chao FAN ; Junqi WANG
Journal of Clinical Surgery 2025;33(3):256-260
Objective To investigate the effects of miR-362-3p on the proliferation,migration and invasion of esophageal cancer EC9706 cells and its molecular mechanism.Methods The cancerous tissues and adjacent tissues of 30 patients with esophageal cancer from January 2018 to January 2020 were selected,and human normal esophageal epithelial cells HET-1 A and esophageal cancer cells EC9706,TE10,KYSE-140,KYSE-150 were cultured in vitro.Real-time fluorescence quantitative PCR(RT-qPCR)was used to detect the expression levels of miR-362-3p and dual specificity phosphatase 10(DUSP10)mRNA in tissues and cells.EC9706 cells were divided into NC group(normally cultured),miR-NC group(transfected miR-362-3p mimic NC)and miR-362-3p group(transfected miR-362-3p mimic),si-NC group(transfected with DUSP10 siRNA NC),si-DUSP10 group(transfected with DUSP10 siRNA),miR-362-3p+pcDNA group(co-transfected with miR-362-3p mimic and pcDNA3.1-DUSP10 NC)and miR-362-3p+pcDNA-DUSP10 group(co-transfected with miR-362-3p mimic and pcDNA3.1-DUSP10).The expression levels of miR-362-3p and DUSP10 mRNA in each group were detected by RT-qPCR.Cell proliferation activity was detected by MTT assay.Cell migration and invasion were detected by Transwell assay.The expressions of DUSP10,CyclinD1,p21,matrix metalloproteinase(MMP)-2 and MMP-9 were detected by Western blot.Dual luciferase reporter gene assay was used to detect the targeting relationship between miR-362-3p and DUSP10.Results The expression of miR-362-3p was high and DUSP10 was low in esophageal cancer tissues and cells.Overexpression of miR-362-3p or knockdown of DUSP10 expression significantly reduced the activity,migration and invasion number and the expression of CyclinD1,MMP-2 and MMP-9,and significantly increased the expression of p21 in EC9706 cells(P<0.05).miR-362-3p targeted the expression of DUSP10(P<0.05).And up-regulation of DUSP10 expression partially reversed the effects of overexpression of miR-362-3p on the proliferation,migration and invasion of EC9706 cells(P<0.05).Conclusion miR-362-3p can inhibit the proliferation,migration and invasion of EC9706 cells by down-regulating the expression of DUSP10.

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