1.Discussion on Pathogenesis and Treatment of Esophageal Precancerous Lesions from the Perspective of "Turbidity Damaging the Clear and Harmonious"
Cong HE ; Tingting XU ; Yi WANG ; Jing KONG ; Xiao WANG ; Xiaosu WANG ; Shumiao FAN ; Shengliang ZHU ; Bingduo ZHOU
Journal of Traditional Chinese Medicine 2026;67(13):1397-1402
It is considered that "turbid pathogen damaging the clear, and the loss of clarity and harmony regulation" is the core pathogenesis of esophageal precancerous lesions, with turbid pathogen persisting throughout the disease course. Turbid pathogen encompasses qi turbidity, phlegm turbidity, stasis turbidity, and toxin turbidity, closely related to dietary indiscretion, emotional disharmony, spleen-stomach deficiency, and kidney deficiency failing to consolidate. Turbid pathogen undergoes a dynamic evolution process of qi constraint generating turbid→ phlegm-stasis transforming into toxin→turbidity toxin harming the healthy qi, corresponding to the pathological alterations of hypoxia, inflammation and immunosuppression within the tumor microenvironment. The overall therapeutic principle is to remove turbidity and restore clarity. In the early stage, targeting the hypoxic tumor microenvironment, the suggested treatment method is opening constraint and dispersing the block, regulating qi and remove turbidity, with emphasis on soothing liver and regulating stomach, raising the clear and directing the turbid downward. In the middle stage, targeting inflammatory microenvironment, the treatment aims to clear toxin and dissipate nodules, resolve stasis and eliminate turbid, emphasizing phlegm-stasis elimination, turbid-toxin resolution, and concurrent stomach qi protection. In the late stage, corresponding to immunosuppressive microenvironment, the method of boosting qi, nourishing yin, reinforcing healthy qi, and eliminating turbidity can be used, with focus on spleen-stomach tonification, kidney essence replenishment, and healthy qi reinforcement to expel pathogenic factors.
2.Correlation between parental behaviors and autistic traits in children with autism spectrum disorder
Chinese Journal of School Health 2026;47(6):818-821
Objective:
To understand the correlation between autistic traits in children with autism spectrum disorder(ASD) and their parental behaviors, so as to provide evidence for improving social behavior in children with ASD.
Methods:
A total of 62 children aged 4-7 years diagnosed with ASD at Guangdong Provincial Work Injury Rehabilitation Hospital and Guangzhou Yuexiu District Children s Hospital from October 2021 to May 2025 were selected as the ASD group. A random number table method was used to select 62 healthy children of the same age from 3 ordinary kindergartens in Guangzhou as the control (typically developing,TD) group. The Parental Behavior Inventory and Social Responsiveness Scale were used to evaluate parental behaviors and autistic traits in both groups. The t-test and multiple linear regression were used to analyze the relationship between autistic traits in children with ASD and parental behaviors.
Results:
Compared with the TD group, the ASD group had significantly higher scores in social awareness, social cognition, social communication, social motivation, autistic behavior patterns, and the total score of social responsiveness, with statistically significant differences ( t =35.83, 46.17, 64.36, 41.45, 49.46,101.15, all P <0.01). The score of parental support/participation in the ASD group (24.61±4.30) was lower than that in the TD group (31.27±4.58), while the score of parental hostility/coercion in the ASD group (25.51±2.72) was higher than that in the TD group (12.75±2.72), with statistically significant differences ( t = -8.34, 26.14, both P <0.01). The total score of the Social Responsiveness Scale was negatively correlated with the dimension score of parental support/participation behaviors, and positively correlated with the dimension score of parental hostility/coercion behaviors ( r =-0.60, 0.91,both P <0.05). After adjusting for covariates such as children s age, gender, and primary caregiver, ASD children with exclusive breastfeeding ( β =-8.79) and parental support/participation behaviors ( β = -0.79 ) had a lower risk of autistic traits, while children with parental hostility/coercion behaviors ( β =4.62) had a higher risk of autistic traits (all P <0.05).
Conclusion
Autistic traits in children with ASD may be related to their parental behaviors and early feeding mode.
3.Astragalus Promotes Osteogenic Differentiation of hBMSCs and Alleviates Osteoporosis by Targeting SOX11 Via miR-181d-5p
Yuan XIAO ; Yongli SITU ; Tingting WANG ; Shang KONG ; Jiangqi LIU ; Hong NIE
Biomedical and Environmental Sciences 2025;38(10):1287-1301
Objective This study aimed to investigate the effect of Astragalus(AST)on osteoporosis(OP)and the downstream mechanisms.Methods Human bone marrow-derived mesenchymal stem cells(hBMSCs)were induced to differentiate into osteogenic cells.After transfection with relevant plasmids,cell proliferation,cell cycle progression,and apoptosis were assessed.Alizarin red staining was used to detect calcium nodules in the cells,alkaline phosphatase(ALP)staining was used to detect ALP activity in the cells,and quantitative reverse transcription-polymerase chain reaction and western blotting were used to determine RUNX2 and Osterix expression levels.An OP rat model was established using ovariectomy and micro-computed tomography scanning.Hematoxylin and eosin staining and Masson's trichrome staining were used to evaluate the pathological conditions of bone tissues,while immunohistochemistry was conducted to detect RUNX2 in bone tissues.Results AST promoted the osteogenic differentiation of BMSCs,reduced miR-181d-5p expression levels,and increased SOX11 expression levels.Restoring miR-181d-5p expression or reducing SOX11 expression levels reversed the effects of AST on the osteogenic differentiation of hBMSCs.miR-181d-5p was found to target SOX11 in hBMSCs.AST improved OP in rats,and miR-181d-5p overexpression or SOX11 inhibition reversed the therapeutic effects of AST on OP in rats.Conclusion AST promoted the osteogenic differentiation of hBMSCs and alleviated OP by targeting SOX11 via miR-181d-5p.
4.Study on the effects of telomerase reverse transcriptase in alleviating doxorubicin induced cardiotoxicity.
Qingqing GU ; Qianwe CHEN ; Yu WANG ; Dabei CAI ; Tingting XIAO ; Qingjie WANG ; Ling SUN
Chinese Critical Care Medicine 2025;37(6):583-589
OBJECTIVE:
To investigate the role of telomerase reverse transcriptase (TERT) in alleviating doxorubicin (DOX)-induced cardiotoxicity.
METHODS:
(1) Cell experiments: rat H9c2 cardiomyocytes were divided into control group (CON group), null adenovirus transfection group (NC group), TERT overexpression adenovirus transfection group (TERT group), DOX group (treated with 1 μmol/L DOX for 12 hours), DOX+NC group, and DOX+TERT group (null adenovirus or TERT overexpression adenovirus were transfected for 24 hours and then treated with 1 μmol/L DOX for 12 hours). The mRNA expression of TERT in cardiomyocytes was detected by real-time fluorescence quantitative polymerase chain reaction (RT-qPCR). The level of mitochondrial membrane potential was detected by immunofluorescence. The expression levels of intracellular Bax, Bcl-2, microtubule-associated protein 1 light chain 3 (LC3) and p62 were detected by Western blotting. (2) Animal experiments: male C57BL/6 mice were randomly divided into a sham operation group (Sham group), DOX group (acute cardiotoxicity model was constructed by intraperitoneal injection of DOX 15 mg/kg), DOX+NC group and DOX+TERT group (modeled after transfection with airborne adenovirus or TERT overexpression adenovirus for 7 days). After 7 days of modeling, the area of myocardial fibrosis was detected by Sirius scarlet staining, and cardiac function was detected by echocardiography.
RESULTS:
(1) Cellular experiments: the mRNA expression level of TERT was significantly higher in the TERT group compared with the CON and NC groups. Compared with the CON group, the TERT mRNA expression level of cardiomyocytes in the DOX group and the DOX+NC group were significantly lower, the level of mitochondrial membrane potential was significantly lower, the protein expressions of Bax and LC3 were significantly increased, and the protein expressions of Bcl-2 and p62 were significantly decreased. No significant differences were found between the DOX group and DOX+NC group. Compared with the DOX group and DOX+NC group, the TERT mRNA expression level was increased in the DOX+TERT group (relative expression: 1.02±0.10 vs. 0.61±0.05, 0.54±0.03, both P < 0.05), the level of mitochondrial membrane potential was significantly increased (1.14±0.05 vs. 0.96±0.01, 0.96±0.01, both P < 0.05), the protein expressions of Bax and LC3 were significantly decreased, and the protein expressions of Bcl-2 and p62 were significantly increased (Bax/β-actin: 0.88±0.01 vs. 1.31±0.02, 1.26±0.01; LC3-II/I: 2.16±0.05 vs. 2.64±0.06, 2.58±0.02; Bcl-2/β-actin: 0.65±0.01 vs. 0.40±0.01, 0.41±0.01; p62/β-actin: 0.45±0.01 vs. 0.23±0.02, 0.29±0.01; all P < 0.05). (2) Animal experiments: compared with the Sham group, the percentage of myocardial fibrosis area was significantly increased and left ventricular ejection fraction (LVEF) and fractional shortening (FS) were significantly decreased in the DOX group and DOX+NC group. Compared with the DOX group and DOX+NC group, the percentage of myocardial fibrotic area was significantly decreased in the DOX+TERT group (%: 2.33±0.06 vs. 3.76±0.07, 3.87±0.06, both P < 0.05), and the LVEF and FS were significantly increased [LVEF (%): 67.00±1.14 vs. 54.60±1.57, 53.40±2.18; FS (%): 38.60±0.51 vs. 30.60±1.10, 30.00±0.71; all P < 0.05].
CONCLUSION
Up-regulation of TERT expression can inhibit DOX-induced cardiomyocyte autophagy and apoptosis, attenuate DOX-induced myocardial fibrosis in mice, improve cardiac function, and thus alleviate DOX-induced cardiotoxicity.
Animals
;
Doxorubicin/toxicity*
;
Telomerase/metabolism*
;
Myocytes, Cardiac/metabolism*
;
Rats
;
Male
;
Cardiotoxicity
;
Mice, Inbred C57BL
;
Mice
;
Membrane Potential, Mitochondrial
;
Adenoviridae
;
bcl-2-Associated X Protein/metabolism*
;
Proto-Oncogene Proteins c-bcl-2/metabolism*
;
Transfection
;
Apoptosis
5.Construction and validation of a prognostic prediction model for pediatric sepsis based on the Phoenix sepsis score.
Yongtian LUO ; Hui SUN ; Zhigui JIANG ; Zhen YANG ; Chengxi LU ; Lufei RAO ; Tingting PAN ; Yuxin RAO ; Xiao LI ; Honglan YANG
Chinese Critical Care Medicine 2025;37(9):856-860
OBJECTIVE:
To construct and validate a prognostic prediction model for children with sepsis using the Phoenix sepsis score (PSS).
METHODS:
A retrospective case series study was conducted to collect clinical data of children with sepsis admitted to the pediatric intensive care unit (PICU) of the Affiliated Hospital of Guizhou Medical University from January 2022 to April 2024. The data included general information, the worst values of laboratory indicators within the first 24 hours of PICU admission, PSS score, pediatric critical illness score (PCIS), and the survival status of the children within 30 days of admission. The statistically significant indicators in univariate Logistic regression analysis were included in multivariate Logistic regression analysis to screen the risk factors affecting the prognosis of children with sepsis and construct a nomogram model. The receiver operator characteristic curve (ROC curve) was drawn to evaluate the predictive performance of the model. The Bootstrap method was used to perform 1 000 repeated sampling internal verification and draw the calibration curve of the model.
RESULTS:
A total of 199 children with sepsis were included, of which 32 died and 167 survived 30 days after admission. In the univariate Logistic regression analysis, shock, white blood cell count (WBC), international normalized ratio (INR), lactic acid (Lac), PSS score, and PCIS score were identified as statistically significant predictors. These variables were then included in the multivariate Logistic regression analysis, which demonstrated that shock [odds ratio (OR) = 4.258, 95% confidence interval (95%CI) was 1.049-17.288], WBC (OR = 1.124, 95%CI was 1.052-1.210), and PSS score (OR = 1.977, 95%CI was 1.298-3.012) were independent risk factors for mortality in pediatric patients with sepsis (all P < 0.05). A nomogram model was constructed based on these three risk factors, with the model equation as follows: -4.809+1.449×shock+0.682×PSS score+0.117×WBC. The calibration curve results showed that the model's predictions were highly consistent with the actual observations. The ROC curve showed that when the Youden index of the prediction model was 0.792, the sensitivity and specificity were 90.6% and 88.6%, respectively, and the area under the curve (AUC) was 0.957 (95%CI was 0.930-0.984), which was higher than the AUC of shock, WBC, and PSS score alone (0.808, 0.667, 0.908, respectively).
CONCLUSIONS
Shock, WBC, and PSS score have demonstrated certain predictive value for mortality in children with sepsis. The nomogram model based on the above indicators has important clinical significance for evaluating the prognosis and guiding treatment of children with sepsis.
Humans
;
Sepsis/diagnosis*
;
Prognosis
;
Retrospective Studies
;
Logistic Models
;
Intensive Care Units, Pediatric
;
Nomograms
;
Child
;
ROC Curve
;
Risk Factors
;
Male
;
Female
;
Child, Preschool
;
Infant
6.The Effect of Fuzheng Huaji Formula (扶正化积方) for Chronic Hepatitis B on Reduction of the Incidence of Liver Cirrhosis and Hepatocellular Carcinoma:A Retrospective Cohort Study
Simiao YU ; Jiahui LI ; Jing JING ; Tingting HE ; Yongqiang SUN ; Liping WANG ; Aozhe ZHANG ; Xiaohe XIAO ; Xia DING ; Ruilin WANG
Journal of Traditional Chinese Medicine 2025;66(3):268-274
ObjectiveTo evaluate the clinical efficacy of Fuzheng Huaji Formula (扶正化积方) for chronic hepatitis B to reduce the incidence of liver cirrhosis and hepatocellular carcinoma. MethodsA retrospective cohort study was conducted, collecting medical records of 118 patients with chronic hepatitis B and 234 patients with hepatitis B-related cirrhosis who visited the hospital between January 1, 2014, and December 31, 2018. The use of Fuzheng Huaji Formula was designated as the exposure factor. Patients receiving antiviral treatment for hepatitis B without concurrent Fuzheng Huaji Formula therapy were included in the western medicine group, while those receiving antiviral treatment combined with Fuzheng Huaji Formula for a cumulative treatment lasting longer than 3 months were included in the combined treatment group. The follow-up observation period was five years. Kaplan-Meier survival analysis was used to assess the cumulative incidence of cirrhosis in patients with chronic hepatitis B and the cumulative incidence of hepatocellular carcinoma in patients with hepatitis B-related cirrhosis. Univariate and multivariate Cox regression analyses were employed to examine the factors influencing the occurrence of cirrhosis and hepatocellular carcinoma. ResultsAmong patients with chronic hepatitis B, there were 55 cases in the combined treatment group and 63 cases in the western medicine group; among patients with hepatitis B-related cirrhosis, there were 110 cases in the combined treatment group and 124 cases in the western medicine group. Five-year follow-up outcomes for chronic hepatitis B patients showed that the cumulative incidence of cirrhosis was 5.45% (3/55) in the combined treatment group and 17.46% (11/63) in the western medicine group, with a statistically significant difference between groups (Z = 2.003, P = 0.045). Five-year follow-up outcomes for hepatitis B-related cirrhosis patients showed that the cumulative incidence of hepatocellular carcinoma was 8.18% (9/110) in the combined treatment group and 22.58% (28/124) in the western medicine group, also showing a statistically significant difference (Z = 3.007, P = 0.003). Univariate and multivariate Cox regression analyses indicated that treatment with Fuzheng Huaji Formula is an independent protective factor in preventing the progression of chronic hepatitis B to cirrhosis and the progression of hepatitis B-related cirrhosis to hepatocellular carcinoma (P<0.05). ConclusionCombining Fuzheng Huaji Formula with antiviral therapy for hepatitis B can effectively intervene in the disease progression of chronic hepatitis B, reducing the incidence of cirrhosis and hepatocellular carcinoma.
7.Mediating Effect of Hope on Self-perceived Burden and Quality of Life in Patients with Recurrent Malignant Tumor
Yaoyao PEI ; Zhangying XU ; Wei XIAO ; Xiuxian LI ; Tingting HU
Journal of Kunming Medical University 2025;46(1):105-110
Objective To explore the mediating effect of hope between self-perceived burden and quality of life in patients with recurrent malignant tumors.Methods A cross-sectional survey was conducted using convenience sampling,selecting 204 patients with recurrent malignant tumors from the Oncology Department of Xiangyang Central Hospital in Hubei Province from September to December 2023.A general information questionnaire,Self-Perceived Burden Scale(SPBS),hope level(HHI),and EORTC QLQ-C30 quality of life questionnaire were utilized for the investigation.Results The SPBS score for patients with recurrent malignant tumors was(28.28±8.92),the HHI score was(35.83±4.30)and the quality of life score was(59.68±23.96).Self-perceived burden was negatively correlated with hope and quality of life(P<0.05;P<0.01),while hope was positively correlated with quality of life(P<0.01).The mediating effect of hope between the burden of self-perception and quality of life is reflected,with the indirect effect accounting for 21.18%of the total effect.Conclusion Patients with recurrent malignant tumors generally have a low quality of life and moderate levels of hope,both of which require improvement.The self-perceived burden of patients is at a mild to moderate level.Healthcare professionals should take effective measures to enhance patients'levels of hope and reduce their self-perceived burden,thereby improving the quality of life for patients with recurrent malignant tumors.
8.Predictive value of pre-treatment circulating tumor DNA genomic landscape in patients with relapsed/refractory multiple myeloma undergoing anti-BCMA CAR-T therapy: Insights from tumor cells and T cells
Rongrong CHEN ; Chunxiang JIN ; Kai LIU ; Mengyu ZHAO ; Tingting YANG ; Mingming ZHANG ; Pingnan XIAO ; Jingjing FENG ; Ruimin HONG ; Shan FU ; Jiazhen CUI ; Simao HUANG ; Guoqing WEI ; He HUANG ; Yongxian HU
Chinese Medical Journal 2025;138(19):2481-2490
Background::B-cell maturation antigen (BCMA)-directed chimeric antigen receptor T (CAR-T) therapy yield remarkable responses in patients with relapsed/refractory multiple myeloma (R/RMM). Circulating tumor DNA (ctDNA) reportedly exhibits distinct advantages in addressing the challenges posed by tumor heterogeneity in the distribution and genetic variations in R/RMM.Methods::Herein, the ctDNA of 108 peripheral blood plasma samples from patients with R/RMM at the First Affiliated Hospital, School of Medicine, Zhejiang University was thoroughly investigated before administration of anti-BCMA CAR-T therapy to establish its predictive potential. Flow cytometry is used primarily to detect subgroups of T cells or CAR-T cells.Results::In this study, several tumor and T cell effector-mediated factors were considered to be related to treatment failure by an integrat analysis, including higher percentages of multiple myeloma (MM) cells in the bone marrow ( P = 0.0125), lower percentages of CAR-T cells in the peripheral blood at peak ( P = 0.0375), and higher percentages of CD8 + T cells ( P = 0.0340). Furthermore, there is a substantial correlation between high ctDNA level (>143 ng/mL) and shorter progression-free survival (PFS) ( P = 0.007). Multivariate Cox regression analysis showed that high levels of ctDNA (>143 ng/mL), MM-driven high-risk mutations (including IGLL5 [ P = 0.004], IRF4 [ P = 0.024], and CREBBP [ P = 0.041]), number of multisite mutations, and resistance-related mutation ( ERBB4, P = 0.040) were independent risk factors for PFS. Conclusion::Finally, a ctDNA-based risk model was built based on the above independent risk factors, which serves as an adjunct non-invasive measure of substantial tumor burden and a prognostic genetic feature that can assist in predicting the response to anti-BCMA CAR-T therapy.
9.Mechanism Investigation of Qi-invigorating and Blood-activating Drug Combination in Yitangkang Compound Against Diabetic Cardiomyopathy Using Multimodal Research Approach
Chenghao YU ; Tingting LI ; Mingbo ZHANG ; Honghe XIAO ; Yufeng YANG ; Yan SHI
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(24):94-106
ObjectiveThrough multimodal research methods including medication rule mining, network pharmacology, molecular docking and dynamics simulation, and in vivo animal experiments, this study aims to speculate and verify the core composition (Ginseng Radix et Rhizoma Rubra-Salviae Miltiorrhizae Radix et Rhizoma-Notoginseng Radix et Rhizoma) and efficacy (Qi-invigorating and blood-activating) of the drug combination in Yitangkang Compound for improving diabetic cardiomyopathy (DCM), investigate the interaction relationship and binding strength between core active ingredients of the drug combination and key signaling pathway targets, and further explore the mechanism by which the Qi-invigorating and blood-activating drug combination regulates the calcium signaling pathway to improve cardiac function in DCM rats. MethodsThe Ancient and Modern Medical Cases Cloud Platform was used to construct a DCM prescription database, and the "Analysis Method" module of the platform was applied to mine and summarize medication rules, thereby determining the core composition of the Qi-invigorating and blood-activating drug combination in Yitangkang. Drug-active ingredient-signaling pathway-core target-disease analysis and visualization were conducted by combining network pharmacology with the Traditional Chinese Medicine System Pharmacology Platform (TCMSP) database, SwissTargetPrediction platform, GeneCards database, MetaScape database, CytoScape software, etc. Then, molecular docking was performed via the CB-Dock2 platform, and molecular dynamics simulation of the high-binding-strength docking complexes was carried out by Gromacs software. Finally, in vivo animal experiments were carried out. Twenty-eight Sprague Dawley (SD) rats meeting the research criteria were divided into a normal group, a model group, a drug combination group (3.3 g·kg-1), and a Yitangkang group (20 g·kg-1). A type 2 diabetes mellitus (T2DM) rat model was established by high-fat diet feeding combined with intraperitoneal injection of streptozotocin (STZ), followed by continuous feeding for eight weeks until the DCM model was successfully established. During this period, the traditional Chinese medicine (TCM) compound and drug combination were administered for prevention and treatment intervention. Meanwhile, changes in blood glucose, body weight, and heart index of each group were monitored. Cardiac function was assessed by echocardiography, and electrophysiological signals were detected by an electrocardiogram. The heart tissue was observed for pathological changes by hematoxylin-eosin (HE) and Masson staining, and the expression of L-type calcium channel (CACNA1C), calmodulin (CALM1), calcium/calmodulin-dependent protein kinase Ⅱδ (CAMK2D), and neuronal nitric oxide synthase (NOS1) proteins in the calcium signaling pathway of myocardial tissue was detected by Western blot. ResultsIn 62 DCM prescriptions, Ginseng Radix et Rhizoma Rubra, Salviae Miltiorrhizae Radix et Rhizoma, and Notoginseng Radix et Rhizoma were used most frequently. Their meridian tropism mainly involved the spleen, heart, and lung, and their sweet and warm properties were prominent. The drugs for tonifying or blood-activating and stasis-resolving ranked top. In association rule analysis, (Ginseng Radix et Rhizoma Rubra, Salviae Miltiorrhizae Radix et Rhizoma)-Notoginseng Radix et Rhizoma had the highest lift. Network pharmacology obtained 75 active ingredients of the drug combination, 714 drug combination action targets, 2 702 disease targets, and 286 intersection targets. Protein-protein interaction (PPI) network predicted nine interaction component-targets (nine active ingredients and four calcium signaling pathway target genes). Molecular docking showed the four complexes with the lowest binding energy were 2f3z-ginsenoside Re, 1cll-quercetin, 9blh-(6S)-6-(hydroxymethyl)-1,6-dimethyl-8,9-dihydro-7H-naphtho[8,7-g]benzofuran-10,11-dione, and 5vv0-miltionone Ⅱ. Dynamics simulation showed the CALM1-quercetin complex had the strongest binding affinity. The animal experiment results revealed that compared with the normal group, the model group showed significant changes in blood glucose, body weight, myocardial tissue morphology, heart index, cardiac function, electrophysiological indexes, and the expression levels of CACNA1C, CALM1, CAMK2D, and NOS1 proteins (P<0.05, P<0.01). Compared with the model group, the Yitangkang group had a certain improvement effect on the above indexes (P<0.05, P<0.01). Compared with the Yitangkang group, the drug combination group showed no significant difference in improving myocardial tissue morphology, heart index, cardiac function, electrophysiological indexes, and the expression of CACNA1C, CALM1, CAMK2D, and NOS1 proteins, except for blood glucose and body weight. ConclusionGinseng Radix et Rhizoma Rubra, Salviae Miltiorrhizae Radix et Rhizoma, and Notoginseng Radix et Rhizoma are the core Qi-invigorating and blood-activating drug combination in Yitangkang Compound. They have a good preventive and therapeutic effect on STZ-induced DCM in rats, and their mechanism of action may be related to the regulation of the calcium signaling pathway.
10.Paroxetine alleviates dendritic cell and T lymphocyte activation via GRK2-mediated PI3K-AKT signaling in rheumatoid arthritis.
Tingting LIU ; Chao JIN ; Jing SUN ; Lina ZHU ; Chun WANG ; Feng XIAO ; Xiaochang LIU ; Liying LV ; Xiaoke YANG ; Wenjing ZHOU ; Chao TAN ; Xianli WANG ; Wei WEI
Chinese Medical Journal 2025;138(4):441-451
BACKGROUND:
G protein-coupled receptor kinase 2 (GRK2) could participate in the regulation of diverse cells via interacting with non-G-protein-coupled receptors. In the present work, we explored how paroxetine, a GRK2 inhibitor, modulates the differentiation and activation of immune cells in rheumatoid arthritis (RA).
METHODS:
The blood samples of healthy individuals and RA patients were collected between July 2021 and March 2022 from the First Affiliated Hospital of Anhui Medical University. C57BL/6 mice were used to induce the collagen-induced arthritis (CIA) model. Flow cytometry analysis was used to characterize the differentiation and function of dendritic cells (DCs)/T cells. Co-immunoprecipitation was used to explore the specific molecular mechanism.
RESULTS:
In patients with RA, high expression of GRK2 in peripheral blood lymphocytes, accompanied by the increases of phosphatidylinositol 3 kinase (PI3K), protein kinase B (AKT), and mammalian target of rapamycin (mTOR). In animal model, a decrease in regulatory T cells (T regs ), an increase in the cluster of differentiation 8 positive (CD8 + ) T cells, and maturation of DCs were observed. Paroxetine, when used in vitro and in CIA mice, restrained the maturation of DCs and the differentiation of CD8 + T cells, and induced the proportion of T regs . Paroxetine inhibited the secretion of pro-inflammatory cytokines, the expression of C-C motif chemokine receptor 7 in DCs and T cells. Simultaneously, paroxetine upregulated the expression of programmed death ligand 1, and anti-inflammatory cytokines. Additionally, paroxetine inhibited the PI3K-AKT-mTOR metabolic pathway in both DCs and T cells. This was associated with a reduction in mitochondrial membrane potential and changes in the utilization of glucose and lipids, particularly in DCs. Paroxetine reversed PI3K-AKT pathway activation induced by 740 Y-P (a PI3K agonist) through inhibiting the interaction between GRK2 and PI3K in DCs and T cells.
CONCLUSION
Paroxetine exerts an immunosuppressive effect by targeting GRK2, which subsequently inhibits the metabolism-related PI3K-AKT-mTOR pathway of DCs and T cells in RA.
G-Protein-Coupled Receptor Kinase 2/metabolism*
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Arthritis, Rheumatoid/immunology*
;
Animals
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Dendritic Cells/metabolism*
;
Paroxetine/therapeutic use*
;
Proto-Oncogene Proteins c-akt/metabolism*
;
Mice
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Humans
;
Mice, Inbred C57BL
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Signal Transduction/drug effects*
;
Male
;
Phosphatidylinositol 3-Kinases/metabolism*
;
Lymphocyte Activation/drug effects*
;
Female
;
T-Lymphocytes/metabolism*
;
Middle Aged


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