1.Research progress on the effectiveness of digital health interventions in improving mental health services for college students
LIU Sishuai, MENG Linsheng, DUN Yujing, PANG Miaodan, LIU Xiaotong, JIANG Jiajun
Chinese Journal of School Health 2026;47(6):893-897
Abstract
To promote the mental health of college students and build campus based psychological support system, the study explains that current applications of digital health interventions (DHIs) include independent forms based on a single technology or platform, as well as integrated forms that combine multiple digital technologies with traditional mental health services. These interventions have positive effects on alleviating negative emotions among college students, enhancing psychological resilience, improving quality of life, and ameliorating academic performance. However, differences still exist in the stability of intervention effects. Future development requires continuous improvement in institutional construction, ethical governance and capacity building.
2.Flavonoids Intervene in Diabetic Nephropathy by Regulating TGF-β/Smad Signaling Pathway: A Review
Qihui QIU ; Chang LIU ; Xiaotong YAN ; Jinwei HAN ; Hui SUN ; Fengting YIN ; Yuhang WANG ; Mengmeng WANG ; Xijun WANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(7):300-309
Diabetic nephropathy (DKD), as a common microvascular complication of diabetes mellitus (DM), is a major cause of end-stage renal disease (ESRD). Its clinical manifestations include increased urinary protein excretion, thickening of the glomerular basement membrane, and renal tubulointerstitial fibrosis. The pathogenesis of DKD is complex and involves multiple factors, including disordered glucose metabolism, hemodynamic alterations, and oxidative stress. Although modern medical approaches can alleviate certain symptoms, they still have limitations such as insufficient therapeutic targeting and prominent adverse effects. The transforming growth factor-β/Smad (TGF-β/Smad) signaling pathway is not only a tissue fibrosis pathway that has attracted considerable attention in recent years, but also regulates multiple protein molecules, including the glomerular podocyte slit diaphragm protein Podocin, interleukin-1β (IL-1β), and superoxide dismutase (SOD), thereby participating in various pathological processes and ultimately mediating renal injury. Flavonoid compounds, owing to their sustained pharmacological effects, broad spectrum of action, and high safety profile, have become ideal candidates for targeted therapy research in DKD. Existing studies have shown that these compounds can exert inhibitory effects on renal fibrosis, alleviate inflammatory responses, protect podocytes, and reduce oxidative stress by regulating the interactions between the TGF-β/Smad signaling pathway and the aforementioned protein molecules, thereby maintaining renal structure and function, reducing proteinuria, and significantly improving DKD lesions. This review briefly outlines the composition and functions of the TGF-β/Smad signaling pathway, elucidates the mechanisms by which this pathway regulates DKD, and focuses on summarizing major studies from the past decade on flavonoid-based interventions in DKD through targeted inhibition of the TGF-β/Smad signaling pathway. Furthermore, it discusses the considerable therapeutic potential of flavonoids in the treatment of this disease, aiming to provide a scientific basis for future clinical prevention and treatment of DKD and to promote the development of targeted drugs.
3.Signals mining and analysis of inebilizumab adverse events
Jiayi ZHANG ; Chen LIU ; Xiaotong ZHANG
China Pharmacy 2026;37(2):215-219
OBJECTIVE To mine and analyze adverse event signals associated with inebilizumab, and to provide reference for safe and rational clinical use. METHODS Reports of adverse event related to inebilizumab were collected from the FDA adverse event reporting system (FAERS) database, from Q2 2020 to Q4 2024. Adverse events were standardized and categorized according to the preferred term (PT) and system organ class (SOC) of the Medical Dictionary for Regulatory Activities (MedDRA) version 26.0. Signals were mined using the reporting odds ratio (ROR) method and the Bayesian confidence propagation neural network (BCPNN) method. RESULTS A total of 783 adverse event reports with inebilizumab as the primary suspected drug were identified, involving 297 patients. Most reports originated from the United States and Japan, with physicians being the primary reporters. Female patients outnumbered males, and the most common age group was 45-64 years. Using the ROR method and BCPNN method, a total of 29 valid adverse event signals were detected, involving 12 SOCs and comprising 225 adverse event reports. The five most frequently reported PTs were headache, nausea, fatigue, infectious pneumonia and arthralgia. The five PTs with the strongest signal intensity were: B-cell recovery, decreased blood immunoglobulin G, spinal compression fracture, COVID-19 and acute respiratory distress syndrome. Among the 29 valid signals for adverse event, 19 were not documented in the drug package inserts, involving 10 SOCs and comprising 107 adverse event reports. These encompassed nervous system disorders, general disorders and administration site conditions, eye disorders, among others. CONCLUSIONS Inebilizumab treatment not only causes adverse events documented in the product information, such as infections, immunoglobulin reduction and infusion-related reactions but also leads to potential signals, including B-cell recovery, spinal compression fracture. When using this drug in clinical practice, the patient’s risk of infection and baseline immune status should be assessed, relevant indicators should be closely monitored, and targeted preventive measures should be considered when necessary.
4.Decision-making behavior in patients with depressive disorder and its relationship with depressive and anxiety symptoms
Yuxiang WANG ; Luoya ZHANG ; Maomao ZHANG ; Juan DENG ; Yanjie PENG ; Xiaotong CHENG ; Kezhi LIU ; Wei LEI ; Jing CHEN
Sichuan Mental Health 2025;38(1):22-27
BackgroundPatients with depressive disorder often exhibit impaired decision-making functions. However, the relationship between decision-making abilities and depressive and anxiety symptoms in these patients remains unclear. ObjectiveTo explore the characteristics of decision-making behavior in patients with depressive disorder, and to analyze its relationship with clinical symptoms. MethodsA total of 48 patients diagnosed with depressive disorder according to the Diagnostic and Statistical Manual of Mental Disorders, fourth edition (DSM-IV) were recruited from the Department of Psychosomatic Medicine of the Affiliated Hospital of Southwest Medical University from October 2020 to May 2023. Concurrently, 52 healthy individuals matched for age and gender were recruited from Luzhou as the control group. Beck Depression Inventory (BDI) and Beck Anxiety Inventory (BAI) were used for assessment, and decision-making behavior was evaluated using Probabilistic Reversal Learning (PRL) task. Indicators assessed included the number of trials to criterion, perseverative errors, win-stay rate and lose-shift rate. Spearman correlation analysis was used to assess the correlation between BDI and BAI scores and PRL task indicators. ResultsThe depression group showed a significantly higher lose-shift rate compared with the control group (t=3.684, P<0.01). There were no statistically significant differences between two groups in trials to criterion, perseverative errors and win-stay rate (t=0.329, 0.132, 0.609, P>0.05). In depression group, BDI and BAI scores were positively correlated with the win-stay rate(r=0.450, 0.398, P<0.01). ConclusionPatients with depressive disorder are more likely to change their decision-making strategies following negative outcomes. Furthermore, the severity of depressive and anxiety symptoms is associated with a greater propensity to maintain existing decisions after receiving positive feedback. [Funded by 2019 Joint Project of Luzhou Science and Technology Bureau-Southwest Medical University (number, 2019LZXNYDJ39]
5.Evaluation of the efficacy of dienogest in the treatment of adenomyosis with different MRI types
Molin WANG ; Hongyan GUO ; Xinran GAO ; Lu LIU ; Xiaotong HAN
Chinese Journal of Obstetrics and Gynecology 2025;60(7):511-519
Objective:To analyze the differences in the clinical characteristics of patients with adenomyosis of different magnetic resonance imaging (MRI) types and the differences in treatment effects after the application of dienogest.Methods:A total of 176 patients with adenomyosis who were admitted to Peking University Third Hospital from June 2017 to February 2023 were included in the study, and all of them were clearly classified by pelvic MRI and treated with dienogest. The clinical characteristics and treatment of the patients were retrospectively collected, and the patients were divided into endogenous type, exogenous type and penetrating type by MRI. The differences in clinical symptoms, imaging features and treatment effect of patients with adenomyosis of different MRI types were analyzed.Results:(1) The percentages of patients with endogenous, exogenous, and penetrating types were 40.9% (72/176), 35.2% (62/176) and 23.9% (42/176), respectively. The proportion of dysmenorrhea in patients with endogenous type (90.3%, 65/72) was significantly lower than those of exogenous type (100.0%, 62/62) and penetrating type (97.6%, 41/42; χ2=7.853, P=0.020), while there was no significant difference between exogenous type and penetrating type ( P>0.05). There were no statistically significant differences in menarche time, menstrual cycle and menstrual period among the three types of patients (all P>0.05), there was also no statistically significant difference in the proportion of menstrual abnormalities (including heavy and irregular menstrual bleeding; P>0.05). The proportions of ovarian endometrioma and deep infiltrating endometriosis in exogenous and penetrating types were significantly higher than that in endogenous type (all P<0.05). (2) The pain scores of all patients were significantly lower than those before treatment (all P<0.001), the proportion of patients with exogenous type (62.9%, 39/62) who had complete remission after treatment was higher than those of endogenous type (49.2%, 32/65) and penetrating type (46.3%, 19/41), but there was no significant difference in pain relief (i.e. the variation in the pain scores) between the three types ( P>0.05). (3) Endogenous type ( OR=0.361, 95% CI: 0.147-0.883; P=0.026), failure to apply gonadotropin-releasing hormone agonist (GnRH-a) in advance ( OR=0.208, 95% CI: 0.083-0.518; P<0.001), cystic changes ( OR=2.671, 95% CI: 1.108-6.437; P=0.029) and abnormal menstruation ( OR=3.466, 95% CI: 1.464-8.209; P=0.005) were independent risk factors for irregular bleeding after dienogest treatment. Conclusions:(1) There are obvious differences in the clinical characteristics of patients with adenomyosis of different MRI types, and patients with exogenous and penetrating types are more likely to have dysmenorrhea symptoms. (2) Dienogest could significantly alleviate the symptoms of dysmenorrhea in patients with adenomyosis. (3) Endogenous type, failure to take GnRH-a in advance and associated menstrual abnormalities are independent risk factors for irregular bleeding after dienogest treatment.
6.Molecular Mechanism of Gentiopicroside on Diseases
Mingxiu LI ; Qingsong LI ; Xiaotong YANG ; Ruifeng YANG ; Lili WU ; Tonghua LIU ; Lingling QIN
World Science and Technology-Modernization of Traditional Chinese Medicine 2025;27(4):950-961
Gentiopicroside(GPS)is the main active ingredient extracted from Gentiaceae.It has anti-inflammatory,antioxidant,analgesic,anti-fibrosis,inhibition of tumor cell proliferation and improvement of glucose and lipid metabolism.Gentiaceae shows a wide range of application prospects in the treatment of diabetes,liver diseases,bone and joint diseases and other diseases.This paper reviewed the pharmacokinetics of gentiopicrin,including its pharmacokinetic properties in different animal models,and its mechanism and targets in the treatment of diabetes mellitus and its complications,liver injury,bone and joint diseases.Studies have shown that gentiopictin exerts its therapeutic effects by regulating various signaling pathways,such as PI3K/AKT,FOXO1,PPAR-γ,NF-κB,etc.Although the current research has made some progress,there are still limitations,such as most studies focused on animal models and in vitro experiments,lack of high-quality clinical evidence-based trials support.Future studies should further explore the new targets and signal transduction pathways of gentiopicroside,improve its bioavailability,and strengthen the research of traditional Chinese medicine compounds,so as to give full play to the advantages of holistic treatment of traditional Chinese medicine.
7.Diagnostic value and influencing factors of endoscopic ultrasonography for rectal neuroendocrine neoplasms
Xiaotong WANG ; Xiaowei WANG ; Wenjun ZHAO ; Zeyuan DIAO ; Wen SONG ; Yao LIU ; Zhenzhen SUI ; Ya LIU ; Hua LIU
Chinese Journal of Digestive Endoscopy 2025;42(6):474-479
Objective:To investigate the diagnostic value and influencing factors of endoscopic ultrasonography (EUS) for detecting rectal neuroendocrine neoplasms (R-NENs).Methods:A retrospective case-control study was performed on data of patients with suspected R-NENs by white light endoscopy who underwent endoscopic diagnosis and treatment or surgical operation and obtained pathological diagnosis at the Affiliated Hospital of Qingdao University from March 2016 to June 2023. Clinical data, EUS characteristics and pathological results were statistically analyzed, and the diagnostic accuracy of EUS for R-NENs were obtained by comparing the EUS results with the pathological results. Influencing factors affecting accuracy were analyzed by using the binary logistic regression model.Results:A total of 317 patients were included. The sensitivity, the specificity, the positive predictive value and the negative predictive value of EUS in diagnosing R-NENs were 98.03% (249/254), 34.92% (22/63), 85.86% (249/290) and 81.48% (22/27) respectively. The accuracy was 85.49% (271/317) and the Jorden index was 0.33. Tumor size ≤5 mm ( P=0.002, OR=2.892, 95% CI: 1.464-5.713), absence of surface vascular dilation ( P=0.019, OR=2.613, 95% CI: 1.170-5.837), normal tumor coloration ( P=0.001, OR=3.460, 95% CI: 1.645-7.279) and erythematous surface appearance ( P=0.048, OR=7.242, 95% CI: 1.015-51.680) were independent risk factors affecting the accuracy of R-NENs diagnosis by EUS. Depth assessment accuracy of EUS was 76.77% (195/254), with echo heterogeneity ( P<0.001, OR=4.008, 95% CI: 1.980-8.113) and surface depression ( P=0.035, OR=2.664, 95% CI: 1.073-6.615) emerging as significant factors affecting invasion depth evaluation. Conclusion:EUS demonstrates substantial clinical utility for R-NENs assessment, with diagnostic performance being significantly associated with tumor morphology and sonographic features. Macroscopic characteristics including tumor size, vascular patterns, and chromatic features influence diagnostic accuracy, while echo-textural heterogeneity and surface depression affect invasion depth precision. These findings underscore the clinical relevance of comprehensive EUS evaluation in R-NENs management.
8.Mechanism of Action of Kaixinsan in Ameliorating Alzheimer's Disease
Xiaoming HE ; Xiaotong WANG ; Dongyu MIN ; Xinxin WANG ; Meijia CHENG ; Yongming LIU ; Yetao JU ; Yali YANG ; Changbin YUAN ; Changyang YU ; Li ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(1):20-29
ObjectiveTo investigate the mechanism of action of Kaixinsan in the treatment of Alzheimer's disease (AD) based on network pharmacology, molecular docking, and animal experimental validation. MethodsThe Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform(TCMSP) and the Encyclopedia of Traditional Chinese Medicine(ETCM) databases were used to obtain the active ingredients and targets of Kaixinsan. GeneCards, Online Mendelian Inheritance in Man(OMIM), TTD, PharmGKB, and DrugBank databases were used to obtain the relevant targets of AD. The intersection (common targets) of the active ingredient targets of Kaixinsan and the relevant targets of AD was taken, and the network interaction analysis of the common targets was carried out in the STRING database to construct a protein-protein interaction(PPI) network. The CytoNCA plugin within Cytoscape was used to screen out the core targets, and the Metascape platform was used to perform gene ontology(GO) functional enrichment analysis and Kyoto encyclopedia of genes and genomes(KEGG) pathway enrichment analysis. The “drug-active ingredient-target” interaction network was constructed with the help of Cytoscape 3.8.2, and AutoDock Vina was used for molecular docking. Scopolamine (SCOP) was utilized for modeling and injected intraperitoneally once daily. Thirty-two male C57/BL6 mice were randomly divided into blank control (CON) group (0.9% NaCl, n=8), model (SCOP) group (3 mg·kg-1·d-1, n=8), positive control group (3 mg·kg-1·d-1 of SCOP+3 mg·kg-1·d-1 of Donepezil, n=8), and Kaixinsan group (3 mg·kg-1·d-1 of SCOP+6.5 g·kg-1·d-1 of Kaixinsan, n=8). Mice in each group were administered with 0.9% NaCl, Kaixinsan, or Donepezil by gavage twice a day for 14 days. Morris water maze experiment was used to observe the learning memory ability of mice. Hematoxylin-eosin (HE) staining method was used to observe the pathological changes in the CA1 area of the mouse hippocampus. Enzyme linked immunosorbent assay(ELISA) was used to determine the serum acetylcholine (ACh) and acetylcholinesterase (AChE) contents of mice. Western blot method was used to detect the protein expression levels of signal transducer and activator of transcription 3(STAT3) and nuclear transcription factor(NF)-κB p65 in the hippocampus of mice. ResultsA total of 73 active ingredients of Kaixinsan were obtained, and 578 potential targets (common targets) of Kaixinsan for the treatment of AD were screened out. Key active ingredients included kaempferol, gijugliflozin, etc.. Potential core targets were STAT3, NF-κB p65, et al. GO functional enrichment analysis obtained 3 124 biological functions, 254 cellular building blocks, and 461 molecular functions. KEGG pathway enrichment obtained 248 pathways, mainly involving cancer-related pathways, TRP pathway, cyclic adenosine monophosphate(cAMP) pathway, and NF-κB pathway. Molecular docking showed that the binding of the key active ingredients to the target targets was more stable. Morris water maze experiment indicated that Kaixinsan could improve the learning memory ability of SCOP-induced mice. HE staining and ELISA results showed that Kaixinsan had an ameliorating effect on central nerve injury in mice. Western blot test indicated that Kaixinsan had a down-regulating effect on the levels of NF-κB p65 phosphorylation and STAT3 phosphorylation in the hippocampal tissue of mice in the SCOP model. ConclusionKaixinsan can improve the cognitive impairment function in SCOP model mice and may reduce hippocampal neuronal damage and thus play a therapeutic role in the treatment of AD by regulating NF-κB p65, STAT3, and other targets involved in the NF-κB signaling pathway.
9.Compound Glycyrrhizin Tablets Ameliorate Liver Injury Induced by Tripterygium Glycosides Tablet by Regulating Cholesterol Metabolism
Xiaotong FU ; Chunyu CAO ; Chun LI ; Chenna LU ; Ting LIU ; Yifei YANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(2):46-55
ObjectiveTo investigate the mechanism of liver injury induced by tripterygium glycosides tablets (TG) and the molecular mechanism of compound glycyrrhizin tablets (CG) in alleviating the abnormalities of cholesterol metabolism caused by TG via cholesterol metabolism. MethodsAccording to the body weights, male Sprague-Dawley (SD) rats were randomly grouped as follows: control (pure water), low-dose TG (TG-L, 189.0 mg·kg-1·d-1), high-dose TG (TG-H, 472.5 mg·kg-1·d-1), TG-L+CG (189.0 mg·kg-1·d-1 TG + 20.25 mg·kg-1·d-1 CG), and TG-H+CG (472.5 mg·kg-1·d-1 TG + 20.25 mg·kg-1·d-1 CG), with 6 rats in each group. Rats were administrated with corresponding drugs once daily for 3 weeks. At the end of the last administration, the mRNA and protein levels of liver X receptor-alpha (LXR-α), low-density lipoprotein receptor (LDLR), adenosine triphosphate-binding cassette transporter A1 (ABCA1), adenosine triphosphate-binding cassette transporter G1 (ABCG1), 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMGCR), cholesterol 7α-hydroxylase (CYP7A1), cholesterol 12α-hydroxylase (CYP8B1), and sterol 27-hydroxylase (CYP27A1) in the liver tissue were determined by Real-time PCR and Western blotting, respectively. The level of 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMG-CoAR), a regulatory enzyme of cholesterol synthesis, was measured by enzyme-linked immunosorbent assay (ELISA). HepG2 cells were used to observe the effect of TG on the cell proliferation in vitro. Specifically, HepG2 cells were grouped as follows: Low-dose TG (TG-l, 15 mg·L-1), medium-dose TG (TG-m, 45 mg·L-1), high-dose TG (TG-h, 135 mg·L-1), fenofibrate (FB, 10 μmol·L-1), CG extract, TG-h+FB (135 mg·L-1 TG + 10 μmol·L-1 FB), TG-m+FB (45 mg·L-1 TG + 10 μmol·L-1 FB), TG-l+FB (15 mg·L-1 TG + 10 μmol·L-1 FB), TG-h+CG (135 mg·L-1 TG + 60 μmol·L-1 CG), TG-m+CG (45 mg·L-1 TG + 60 μmol·L-1 CG), and TG-l+CG (15 mg·L-1 TG + 60 μmol·L-1 CG). The mRNA and protein levels of LXR-α, ABCG1, LDLR, CYP7A1, CYP8B1, and CYP27A1 in HepG2 cells were determined by Real-time PCR and Western blotting, respectively. ResultsThe rat experiment showed that compared with the control group, the TG-H group showed down-regulated mRNA levels of CYP7A1, CYP8B1, and CYP27A1 in the liver tissue (P<0.05, P<0.01), which were up-regulated by the application of CG (P<0.05, P<0.01), and the TG-H+CG group showed up-regulated mRNA level of LDLR (P<0.01). Compared with the control group, the TG-L and TG-H groups showed down-regulated protein levels of LDLR, CYP7A1, and CYP8B1 in the liver tissue (P<0.05, P<0.01). In addition, the protein levels of ABCG1 and LXR-α were down-regulated in the TG-H and TG-L groups, respectively (P<0.05). Compared with TG alone, TG+CG up-regulated the protein levels of ABCG1 and LDLR (P<0.05, P<0.01), and the protein levels of CYP7A1 and CYP8B1 in the TG-H+CG group were up-regulated (P<0.05, P<0.01). The cell experiment showed that compared with the control group, the TG-h group presented up-regulated mRNA level of LXR-α (P<0.01), and the TG-m and TG-h groups showcased down-regulated mRNA levels of LDLR and CYP7A1 (P<0.01) and up-regulated mRNA level of CYP27A1 (P<0.01) in HepG2 cells. The combination of CG with TG restored the above changes (P<0.01). Western blotting results showed that compared with the control group, the TG-m and TG-h groups showed down-regulated protein levels of LXR-α, ABCG1, LDLR, CYP7A1, CYP8B1, and CYP27A1 in HepG2 cells (P<0.01). Compared with the TG-h group, the TG-h+CG group showed up-regulated protein level of LDLR (P<0.05). Compared with the TG-m group, the TG-m+CG group showcased up-regulated protein levels of LDLR, ABCG1, CYP7A1, and CYP27A1 (P<0.05, P<0.01). ConclusionThe administration of TG at 189.0, 472.5 mg·kg-1 for 3 weeks could modulate the signaling pathways associated with cholesterol efflux, endocytosis, and cholesterol biotransformation in hepatocytes, leading to the accumulation of cholesterol and subsequent liver injury in rats. CG could ameliorate the liver injury induced by lipid metabolism disorders caused by TG by up-regulating the expression of LXR-α, LDLR, ABCG1, CYP7A1, CYP8B1, and CYP27A1 to promote cholesterol biotransformation.
10.The investigation of DNA tetrahedral nanoparticles as mucosal vaccine carriers and adjuvants
Xiaotong CHEN ; Jing YANG ; Henglang LIU ; Lili WANG
Chinese Journal of Preventive Medicine 2025;59(8):1270-1278
Objective:To investigate the feasibility of DNA tetrahedral framework (DNA-TH) as a carrier and adjuvant for mucosal vaccines, using streptavidin (SA) as a model antigen.Methods:DNA-TH was designed using software, integrating the adjuvant CpG sequence into its structure. After in vitro synthesis, it was conjugated with SA to form SA-DNA-TH nanoparticles. In vitro experiments: free SA and the two-dimensional structure SA-CpG (SA directly conjugated to CpG) were used as controls. The uptake efficiency of SA-DNA-TH by mouse primary macrophages and its ability to activate antigen-presenting cells (APCs) were evaluated. In vivo experiments: following submucosal oral injection, a mixture of free SA and free CpG (mixed group) was used as a control. The distribution of SA within mouse lymph nodes was observed using immunofluorescence staining. Levels of SA-specific antibodies (serum IgG, IgM; salivary sIgA) in serum and saliva were measured to assess humoral and mucosal immune responses.Results:Native polyacrylamide gel electrophoresis confirmed the successful synthesis of DNA-TH and SA-DNA-TH. In vitro experiments: SA-DNA-TH was rapidly taken up by primary macrophages. Its uptake rate (92.65%±4.43%) was significantly higher than that of the SA-CpG group (25.37%±3.56%) and the free SA group (1.80%±1.02%; both P<0.01). SA-DNA-TH also induced significantly stronger APC activation (OD value fold increase: 3.60±0.32) compared to the free SA group (1.13±0.10) and the SA-CpG group (1.21±0.02; both P<0.01). In vivo experiments: lymph node distribution analysis revealed overlapping signals of SA with subcapsular sinus macrophages (SCSMs) and dendritic cells (DCs) in the SA-DNA-TH group, whereas SA signals appeared dispersed and non-overlapping with APCs in the mixed group. Regarding immunogenicity, both serum anti-SA antibody (IgG+IgM) titers and salivary anti-SA sIgA antibody titers induced by SA-DNA-TH were significantly higher than those in the mixed group and the blank control group (both P<0.05). Conclusion:DNA-TH effectively delivers the model antigen SA to antigen-presenting cells, significantly induces the production of serum-specific antibodies, and activates mucosal immune responses. It demonstrates potential as a carrier and adjuvant for developing mucosal vaccines.


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