1.Relationship between family functioning and non-suicidal self-injury behaviors in adolescents with depressive disorders
Tongxing MA ; Zilong SONG ; Yingyi CHEN ; Xinzhu ZHENG ; Junsong LIANG ; Liping LIU
Sichuan Mental Health 2026;39(1):14-20
BackgroundFamily functioning is one of the factors influencing non-suicidal self-injury (NSSI) behaviors in adolescents with depressive disorders. Previous studies have treated family functioning as a unitary construct, which may obscure the differential impacts of specific dimensions on NSSI behaviors. ObjectiveTo explore the relationships between various dimensions of family functioning and NSSI behaviors in adolescents with depressive disorders, aiming to provide precise targets for family-based interventions for adolescents with depressive disorders who exhibit NSSI behaviors. MethodsIn this cross-sectional study, 217 adolescent patients who were treated at the outpatient or inpatient department of The First Psychiatric Hospital of Harbin from January to July 2025 and met the diagnostic criteria for depressive disorders as stipulated in the Diagnostic and Statistical Manual of Mental Disorders, fifth edition (DSM-5) were included as the research subjects. Assessments included a self-designed questionnaire, the Hamilton Depression Scale-17 item (HAMD-17), and the Family Assessment Device (FAD). Univariate Logistic regression analysis was employed to investigate the association between each dimension of family functioning and the NSSI behaviors, and multivariate Logistic regression was used to test the independent effect of each dimension of family functioning on the NSSI behaviors. ResultsA total of 204 cases (94.01%) of adolescent patients with depressive disorders completed the valid questionnaire survey. Among them, 134 cases (65.69%) exhibited NSSI behaviors (NSSI group), and 70 cases (34.31%) did not exhibit NSSI behaviors (non-NSSI group). Compared with the non-NSSI group, the NSSI group had a higher HAMD-17 score [(20.97±7.50) vs. (17.79±6.95), t=8.705, P=0.004], a higher FAD total score [(155.68±21.84) vs. (148.87±22.72), t=4.348, P=0.038], and a higher problem-solving dimension score [(2.54±0.49) vs. (2.34±0.51), t=7.399, P=0.007]. All the differences were statistically significant. The results of the Logistic regression analysis showed that the FAD total score (OR=1.014, 95% CI: 1.001–1.028, P=0.041) and the problem-solving dimension score (OR=2.241, 95% CI: 1.228–4.090, P=0.009) were both risk factors for NSSI behaviors. After adjusting for gender, age, residence, educational level, monthly family income, and whether being an only child, the correlation between the FAD total score and NSSI behaviors was not statistically significant (OR=1.010, 95% CI: 0.995–1.025, P=0.185), while the correlation between the FAD problem-solving dimension score and NSSI behaviors remained statistically significant (OR=2.000, 95% CI: 1.028–3.889, P=0.041). ConclusionImpaired problem-solving capacity within family functioning may constitute a risk factor for NSSI behaviors in adolescents with depressive disorders. [Funded by Research Project of Heilongjiang Provincial Health Commission (number, 20240303090148, 20230303090154)]
2.Comparison of sleep EEG power spectral density between depressive episode patients and schizophrenia patients with suicidal behavior
Jingwen LIU ; Yunfei ZHOU ; Jingchu HU ; Jiaoyan ZHOU ; Junwei YANG ; Jie LIANG ; Hong XU ; Yu CANG ; Shimeng MA
Sichuan Mental Health 2026;39(1):50-57
BackgroundPatients with depressive episode and schizophrenia have a high risk of suicide. The sleep electroencephalogram power spectral density characteristics of patients with depressive episode accompanied by suicidal behavior and those with schizophrenia may be different, but there is currently a lack of direct comparative studies on these two groups of patients. ObjectiveTo compare the sleep electroencephalogram power spectral density between depressive episode and schizophrenic patients with suicidal behavior, in order to provide references for exploring predictive indicators of suicidal behavior. MethodsFrom June 2018 to December 2020, 20 patients with depressive episode and 20 patients with schizophrenia who had committed suicide within the past month and were treated at the outpatient department of Shenzhen Kangning Hospital were selected. All of them met the diagnostic criteria for depressive episode or schizophrenia as defined in the International Classification of Diseases, tenth edition (ICD-10). Using a random sampling method, 20 volunteers with matching gender and age to the patient groups were selected from the Cuiping community in Shenzhen as the control group. The subjective sleep of the patients was evaluated using the Insomnia Severity Index (ISI), the Dysfunctional Belief and Attitude about Sleep (DBAS), the Disturbing Dreams and Nightmare Severity Index (DDNSI), and the Epworth Somnolence Scale (ESS). The objective sleep of the patients was assessed using polysomnography. The sleep electroencephalogram was filtered and the power spectral density of the brain wave was analyzed and processed for all the subjects. The subjective and objective sleep conditions of the two patient groups were compared, and the sleep electroencephalogram power spectral density of the patient groups and the control group were also compared. ResultsA comparison of subjective and objective sleep conditions between patients with depressive episode accompanied by suicidal behavior and patients with schizophrenia accompanied by suicidal behavior showed no statistically significant differences (P>0.05). Comparisons of sleep electroencephalogram power spectral density in the W stage (average power of α wave, total power of δ wave, average power of δ wave, average power of θ wave), N1 stage (average power of β wave, total power of α wave, total power of δ wave), N2 stage (total power of α wave, average power of α wave, total power of δ wave, average power of δ wave), N3 stage (average power of α wave, average power of δ wave), and R stage (total power of α wave, average power of α wave, total power of δ wave, average power of δ wave) between patients with depressive episode accompanied by suicidal behavior, patients with schizophrenia accompanied by suicidal behavior, and the control group showed statistically significant differences (P<0.05 or 0.01). The total power of δ wave in the W stage and the average power of β wave and δ wave in the N1 stage were higher in two patient groups were higher than those of the control group. The total power of α wave and the average power of α wave in the N2 stage were lower than those of the control group, while the average power of δ wave was higher than that of the control group. The average power of α wave in the N3 stage of both patient groups were lower than that of the control group, while the average power of δ wave was higher than that of the control group. The total power and average power of α wave in the R stage were lower than those of the control group, while the total power and average power of δ wave were higher than those of the control group. All the differences were statistically significant. Patients with depressive episode accompanied by suicidal behavior had higher average powers of α wave, δ wave, and θ wave in the W stage compared with the control group, while the total power of α wave in the N1 stage was lower in the former group. All these differences were statistically significant (P<0.05). ConclusionThe depressive episode patients accompanied by suicidal behavior have highly overlapping sleep electroencephalogram abnormal patterns with those of schizophrenia patients, mainly manifested as a general decrease in α wave power (N2, N3, R stage) and a general increase in δ wave power (W, N1, N2, N3, R stage) as well as β wave power in N1 stage. At the same time, patients with depressive episode accompanied by suicidal behavior also show specific changes, including an increase in the average power of α and θ waves during the wakefulness period (W stage), and a decrease in the total power of α wave in N1 stage. [Funded by Guangdong Province High-level Clinical Key Specialty (with supporting funds from Shenzhen City) (number, SZGSP013); Shenzhen Key Medical Discipline (number, SZXK041); Shenzhen Clinical Medicine Research Center Project (number, 20210617155253001)]
3.Relationship between family function and anxiety among lower-grade college students: the moderating role of emotion regulation strategies
Rongrong LI ; Liang LIU ; Yuhong YAO ; Shuanglei WU ; Yanbo WANG
Sichuan Mental Health 2026;39(1):70-75
BackgroundAnxiety exhibits a rising prevalence among college students. Investigating the mechanisms through which family function relates to anxiety and examining the moderating role of emotion regulation strategies within this context hold substantial implications for promoting mental health among college students. However, existing research has not sufficiently elucidated the complex interplay among family function, emotion regulation, and anxiety among college students. Further research is warranted to clarify the underlying mechanisms linking family function to anxiety outcomes and to examine the potential moderating role of emotion regulation strategies in this causal pathway. ObjectiveTo explore the relationship between family function and anxiety among lower-grade college students, and to validate the moderating role of emotion regulation strategies in this relationship, thereby offering evidence-based insights for anxiety reduction interventions in this population. MethodsIn March 2023, a total of 1 980 first- and second-year students from a comprehensive university in Shanghai were selected using the cluster sampling method. A self-designed demographic questionnaire, the Emotion Regulation Questionnaire (ERQ), the Family Adaptability and Cohesion Evaluation Scale Ⅱ-Chinese Version (FACES Ⅱ-CV), and the Symptom Checklist-90 (SCL-90) were utilized for assessment. Pearson correlation analysis and Spearman correlation analysis were employed to test the correlations of each variable. Hierarchical linear regression analysis was conducted to certify the moderating role of emotion regulation strategies in the relationship between family function and anxiety. ResultsCompared with female students, male students scored significantly lower on ERQ cognitive reappraisal (t=-5.793, P<0.01) but significantly higher on ERQ expressive suppression (t=8.359, P<0.01). For lower-grade college students, scores on adaptability and cohesion subscales of FACES Ⅱ-CV showed a positive association with cognitive reappraisal in ERQ (r=0.251, 0.302, P<0.01), while simultaneously displaying negative correlations with both expressive suppression in ERQ (r=-0.113, -0.154, P<0.01) and anxiety in SCL-90 (r=-0.243, -0.202, P<0.01). Notably, anxiety scores in SCL-90 were inversely related to cognitive reappraisal scores in ERQ (r=-0.159, P<0.01) but directly associated with expressive suppression scores in ERQ (r=0.171, P<0.01). Hierarchical regression analysis indicated that cognitive reappraisal significantly moderated the relationship between family cohesion and anxiety (β=-0.421, P<0.01). ConclusionThe cognitive reappraisal strategy serves as a moderator in the relationship between family cohesion and anxiety, potentially mitigating the escalation of anxiety levels associated with family dysfunction. [Funded by Science and Technology Development Fund of Shanghai Pudong New Area (number, PKJ2023-Y21)]
4.Clinical decision and prescription generation for diarrhea in traditional Chinese medicine based on large language model
Jiaze WU ; Hao LIANG ; Haoran DAI ; Hongliang RUI ; Baoli LIU
Digital Chinese Medicine 2026;9(1):13-30
Objective:
To develop a clinical decision and prescription generation system (CDPGS) specifically for diarrhea in traditional Chinese medicine (TCM), utilizing a specialized large language model (LLM), Qwen-TCM-Dia, to standardize diagnostic processes and prescription generation.
Methods:
Two primary datasets were constructed: an evaluation benchmark and a fine-tuning dataset consisting of fundamental diarrhea knowledge, medical records, and chain-of-thought (CoT) reasoning datasets. After an initial evaluation of 16 open-source LLMs across inference time, accuracy, and output quality, Qwen2.5 was selected as the base model due to its superior overall performance. We then employed a two-stage low-rank adaptation (LoRA) fine-tuning strategy, integrating continued pre-training on domain-specific knowledge with instruction fine-tuning using CoT-enriched medical records. This approach was designed to embed the clinical logic (symptoms → pathogenesis → therapeutic principles → prescriptions) into the model’s reasoning capabilities. The resulting fine-tuned model, specialized for TCM diarrhea, was designated as Qwen-TCM-Dia. Model performance was evaluated for disease diagnosis and syndrome type differentiation using accuracy, precision, recall, and F1-score. Furthermore, the quality of the generated prescriptions was compared with that of established open-source TCM LLMs.
Results:
Qwen-TCM-Dia achieved peak performance compared to both the base Qwen2.5 model and five other open-source TCM LLMs. It achieved 97.05% accuracy and 91.48% F1-score in disease diagnosis, and 74.54% accuracy and 74.21% F1-score in syndrome type differentiation. Compared with existing open-source TCM LLMs (BianCang, HuangDi, LingDan, TCMLLM-PR, and ZhongJing), Qwen-TCM-Dia exhibited higher fidelity in reconstructing the “symptoms → pathogenesis → therapeutic principles → prescriptions” logic chain. It provided complete prescriptions, whereas other models often omitted dosages or generated mismatched prescriptions.
Conclusion
By integrating continued pre-training, CoT reasoning, and a two-stage fine-tuning strategy, this study establishes a CDPGS for diarrhea in TCM. The results demonstrate the synergistic effect of strengthening domain representation through pre-training and activating logical reasoning via CoT. This research not only provides critical technical support for the standardized diagnosis and treatment of diarrhea but also offers a scalable paradigm for the digital inheritance of expert TCM experience and the intelligent transformation of TCM.
5.SNORA71A regulates the malignant biological behaviors of esophageal squamous cell carcinoma TE-1 cells via the TLR3/PD-L1 expression
SHEN Supenga ; LIANG Jiaa ; CAO Shirua ; ZHAO Yanb ; DONG Zhiminga ; LIU Leic
Chinese Journal of Cancer Biotherapy 2026;33(2):147-154
[摘 要] 目的:探讨核仁小RNA(snoRNA)71A通过TLR3/PD-L1通路对食管鳞状细胞癌(ESCC)细胞增殖、迁移及侵袭能力的影响。方法:qPCR检测52例ESCC患者的配对肿瘤组织、癌旁组织,以及人ESCC细胞中SNORA71A的表达情况。将反义寡核苷酸(SNORA71A-ASO-29、SNORA71A-ASO-102和NC-ASO)或小干扰RNA(siTLR3、siTLR3-NC)分别转染至人ESCC TE-1细胞,分别记为SNORA71A-ASO1组、SNORA71A-ASO2组、NC-ASO组及siTLR3组、siNC组。另外将过表达质粒pcDNA3.1-SNORA71A和pcDNA3.1空载体质粒分别转染至TE-1细胞,分别记为SNORA71A组和Vector组。细胞功能学实验(MTS实验、划痕愈合实验,以及Transwell侵袭实验)评估各组细胞在敲低或过表达SNORA71A后增殖、迁移和侵袭能力的变化。高通量转录组测序筛选SNORA71A下游作用靶基因,基因本体论(GO)和京都基因与基因组百科全书(KEGG)功能富集分析预测SNORA71A下游作用靶基因可能参与的生物学过程和信号通路。qPCR检测测序筛选出的下游作用靶基因TLR3在ESCC组织以及细胞中的表达。同时,qPCR和WB检测TE-1细胞在敲低或过表达TLR3后PD-L1 mRNA和蛋白质表达变化。细胞功能学实验检测TLR3敲低对SNORA71A所促进的TE-1细胞恶性生物行为(增殖、迁移、侵袭)的影响。结果:在52例ESCC患者的肿瘤组织以及ESCC细胞中SNORA71A表达均呈高水平(P < 0.01或P < 0.05)。敲低SNORA71A抑制TE-1细胞增殖、迁移和侵袭(P < 0.01或P < 0.05),过表达SNORA71A则促进TE-1细胞增殖、迁移和侵袭(P < 0.01或P < 0.05)。高通量转录组测序筛选到TLR3为SNORA71A下游作用靶基因。TLR3在ESCC组织以及TE-1细胞中呈低表达(P < 0.01或P < 0.05)。TLR3正向调控PD-L1 mRNA和蛋白质表达(P < 0.01或P < 0.05)。细胞功能学实验中,TLR3可以部分削弱SNORA71A对PD-L1表达的调控(P < 0.01)。结论:SNORA71A通过调控TLR3/PD-L1通路调节TE-1细胞增殖、迁移和侵袭。
6.Research progress on the impact of dietary and sleep rhythm disruption on blood pressure among children and adolescents
Chinese Journal of School Health 2026;47(3):448-451
Abstract
The prevalence of hypertension in children and adolescents continues to rise with a trend toward earlier onset, presenting a phenomenon that cannot be fully explained by traditional risk factor frameworks. Circadian rhythm disruption, particularly the dual disturbance of dietary and sleep rhythms, has emerged as a novel risk factor and become a research hotspot. The review systematically summarizes the epidemiological associations, biological mechanisms, and intervention strategies regarding dietary rhythm, sleep rhythm, and their co exposure with blood pressure in children and adolescents. Future research needs to focus on Chinese pediatric populations through longitudinal cohort studies and randomized controlled trials to clarify causal relationships and regulatory mechanisms, thereby providing evidence based guidance for chronic disease prevention and control in children.
7.Staged Efficacy of Qijia Rougan Prescription Combined with Entecavir for Chronic Hepatitis B-related Hepatic Fibrosis with Qi Deficiency and Collateral Stasis Syndrome Based on "Zhu Ke Jiao" Theory
Baixue LI ; Xin WANG ; Jibin LIU ; Li WEN ; Cen JIANG ; Wenjun WU ; Dong WANG ; Shuwan LIU ; Huabao LIU ; Yongli ZHENG ; Liang HUANG ; Yue SU ; Song ZHANG ; Yanan SHANG ; Hang ZHOU ; Quansheng FENG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(9):180-188
ObjectiveThis paper aims to investigate and evaluate the staged efficacy and safety of the representative empirical prescription of the “Zhu Ke Jiao” theory, Qijia Rougan prescription, combined with entecavir in the treatment of hepatic fibrosis in chronic hepatitis B. MethodsA multicenter randomized controlled clinical study was conducted, and 101 patients diagnosed with chronic hepatitis B-related hepatic fibrosis (CHB-HF) who met the diagnosis and inclusion criteria were randomly assigned to an observation group (Qijia Rougan prescription + entecavir) and a control group (entecavir). The treatment duration was 24 weeks. Liver stiffness measurement (LSM), fibrosis-4 index (FIB-4), portal vein diameter, hepatitis B serology, biochemical indicators, hepatic fibrosis markers in serum [hyaluronic acid (HA), laminin (LN), procollagen Ⅲ peptide (PⅢP), and type Ⅳ collagen (Ⅳ-C)], and traditional Chinese medicine syndrome scores were used as efficacy evaluation indicators. Efficacy assessments and explorations of different staged subgroups of Qijia Rougan prescription were conducted according to LSM values based on the Metavir pathological staging standard. ResultsA total of 98 cases were included for statistical analysis, with 49 cases in the observation group and 49 in the control group. The general data of the patients in both groups were comparable. Compared with the same group before treatment, the observation group showed a significant reduction in LSM and FIB-4 (P<0.01), as well as notable improvements in LN, Ⅳ-C, and various TCM syndrome scores (P<0.05, P<0.01). When compared to the control group after treatment, the observation group demonstrated significant improvements in LSM, FIB-4, and various TCM syndrome score indicators (P<0.05, P<0.01), indicating that the observation group performed better than the control group. Subgroup analysis of the regression of hepatic fibrosis stages showed that compared to the same group before treatment, the observation group had better improvement in regression of stages F2 and F3 (P<0.05). When compared to the control group after treatment, the observation group exhibited superior improvement in regression of stage F3 (P<0.05). No adverse events occurred in either group during the treatment period. ConclusionCompared with entecavir alone, the combination of Qijia Rougan prescription and entecavir significantly improves the degree of hepatic fibrosis and clinical TCM symptoms in patients. The optimal intervention period is primarily during stage F3, which is a potential “interception” point of the “Zhu Ke Jiao” theory.
8.Correlation between liver fibrosis degree and carotid plaque in patients with lean metabolic dysfunction-associated fatty liver disease
Shuai ZHANG ; Shoulu JIN ; Wanqing LI ; Xijing SHI ; Hao LIANG ; Hao DONG ; Dailong LU ; Ying ZHU ; Xiaoxing XIANG ; Jun LIU
Journal of Clinical Hepatology 2026;42(2):319-325
ObjectiveTo investigate the association between noninvasive liver fibrosis markers and carotid plaque (CP) in patients with lean metabolic dysfunction-associated fatty liver disease (MAFLD), and to provide a basis for screening high-risk populations. MethodsA total of 957 patients with lean MAFLD who underwent physical examination in Subei People’s Hospital from January 2021 to June 2023 was enrolled as the observation cohort, with the presence or absence of CP as the outcome, and fibrosis-4 (FIB-4) index and nonalcoholic fatty liver disease fibrosis score (NFS) were used to assess liver fibrosis degree. The independent-samples t test was used for comparison of normally distributed continuous data between two groups, and the Mann-Whitney U test was used for comparison of non-normally distributed continuous data between two groups; the chi-square test was used for comparison of categorical data between two groups. The multivariate logistic regression analysis, the restricted cubic spline analysis, the receiver operating characteristic curve, and the mediation effect analysis were used to investigate the association between liver fibrosis degree and CP. ResultsThe prevalence rate of CP was 36.6% in the lean MAFLD population. Compared with the non-CP group(n=607), the CP group (n=350) had a significantly higher proportion of male patients, a significantly higher proportion of patients with smoking/diabetes/hypertension, and significantly higher levels of age, creatinine, blood urea nitrogen, triglycerides, fasting blood glucose, aspartate aminotransferase, aspartate aminotransferase/alanine aminotransferase ratio, NFS, and FIB-4 index, as well as significantly lower levels of platelet count and albumin (all P<0.05). The multivariate logistic regression analysis showed that after adjustment for confounding factors, FIB-4 index (odds ratio[OR]=2.979, 95% confidence interval[CI]:2.141 — 4.219, P<0.001) and NFS (OR=1.747, 95%CI: 1.499 — 2.046, P<0.001) were positively correlated with CP. Both FIB-4 index and NFS had a good value in predicting CP. Hypertension had a significant indirect effect on the prevalence rate of CP through its impact on liver fibrosis markers, and its mediating effect accounted for 39.5% — 40.8% of the total effect (P<0.001). ConclusionIn patients with lean MAFLD, NFS and FIB-4 index are significantly positively correlated with the prevalence rate of CP, and they can be used as potential epidemiological predictive indicators. Liver fibrosis markers may play a mediating role in the association between hypertension and CP. Interventions targeting hypertension and liver fibrosis markers may help to prevent and delay the progression of CP.
9.Expert consensus on clinical application of parenteral direct thrombin inhibitors in perioperative period
Mingyu JIANG ; Yuan BIAN ; Lizhu HAN ; Qinan YIN ; Fengjiao KANG ; Anhua WEI ; Danjie ZHAO ; Lin WANG ; Ying SHAO ; Li TANG ; Yi WANG ; Shuhong LIANG ; Huijuan LIU ; Guirong XIAO ; Yue LI
China Pharmacy 2026;37(6):689-699
OBJECTIVE To form an expert consensus on the clinical application of parenteral direct thrombin inhibitors (DTIs) in patients during the perioperative period. METHODS Led by Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital (the Affiliated Hospital of UESTC), a multidisciplinary working group was established. Through literature review and the Delphi method, clinical questions related to the rational perioperative use of parenteral DTIs were identified. A structured design was adopted using the “Population-Intervention-Comparison-Outcome” framework; systematic searches were conducted in CNKI, Medline, Embase and other databases. Relevant evidence from randomized controlled trials and cohort studies was included and synthesized. Evidence quality was assessed using the Grades of Recommendations Assessment,Development and Evaluation (GRADE) approach, and recommendations were formulated through multiple rounds of Delphi surveys and expert consensus meetings. RESULTS &CONCLUSIONS Seven recommendations (each with an expert consensus rate exceeding 90%) on the use of parenteral DTIs in perioperative patients were developed. These recommendations specify drug selection, dosing ranges, key monitoring points, and safety management strategies for parenteral DTIs in various scenarios, including the perioperative period of ventricular assist device implantation, the perioperative period of cardiac surgery, perioperative patients with lower-extremity atherosclerotic disease, the perioperative period of percutaneous coronary intervention in patients with acute coronary syndrome, the perioperative period of carotid artery stenting in patients with carotid stenosis, the perioperative period of patients with right heart thrombosis, and patients who develop related thrombosis and dysfunction after a central venous catheter insertion. In addition, warning and management pathways for perioperative bleeding and thrombotic events were proposed. This expert consensus, which is formulated based on the best available evidence, provides evidence-based guidance for standardized and individualized use of parenteral DTIs in perioperative period.
10.IL-22 impairs NK cell function and promotes cisplatin resistance in bladder cancer cells via activating the STAT3 signaling axis
YANG Yunjie1 ; CHEN Yang2 ; LIU Qi3 ; GUAN Lixian2 ; LIANG Gengqi2
Chinese Journal of Cancer Biotherapy 2026;33(3):280-287
[摘 要] 目的:探讨IL-22通过STAT3信号轴损害NK细胞功能并促进膀胱癌细胞耐药的机制。方法:常规培养T24细胞,用梯度递增法构建耐药T24/顺铂(DDP)细胞。将细胞分为对照组(不处理)、DDP组、IL-22组、IL-22 + DDP组、IL-22 + anti-IL-22组、IL-22 + DDP + Stattic(STAT3抑制剂)组。qPCR法检测各组T24细胞中IL-22、cyclin D1、Bcl-2 mRNA的表达,WB法检测各组细胞中BAX、BCL2和p-STAT3的表达,CCK-8法检测各组细胞的增殖活性,流式细胞术检测各组细胞的凋亡,ELISA检测各组细胞上清液中乳酸脱氢酶(LDH)、TNF-α、IFN-γ、颗粒酶B(GzmB)和穿孔素(PRF)蛋白的水平。结果:T24/DDP细胞对DDP敏感性降低(P < 0.05);其耐药相关基因P-糖蛋白(P-gp)、肺耐药蛋白(LRP)、多药耐药相关蛋白1(MRP1)和IL-22及其受体表达水平均明显升高(均P < 0.05),说明T24/DDP细胞构建成功。与对照组比较,DDP组T24细胞的增殖活力明显降低、凋亡率升高、BAX蛋白表达升高、BCL2表达下降(均P < 0.05);与DDP组比较,IL-22 + DDP组T24细胞的增殖活明显升高、凋亡率明显下降、BAX蛋白表达降低、BCL2表达升高(均P < 0.05),表明IL-22通过调节BAX/Bcl-2的表达促进T24细胞对DDP耐药性。与对照组比较,IL-22组T24细胞总细胞和核中p-STAT3表达水平均明显升高(均P < 0.05);与IL-22组比较,IL-22 + anti IL-22组T24细胞中 p-STAT3水平明显降低(P < 0.05),说明IL-22激活T24细胞中STAT3的磷酸化过程,并促进其转核。与对照组比较,DDP组T24与NK92细胞共培养上清液中LDH、TNF-α、IFN-γ、GzmB及PRF蛋白水平均明显升高(均P < 0.05),与DDP组比较,IL-22 + DDP组共培养上清液中上述蛋白水平均明显降低(均P < 0.05);与对照组比较,IL-22组共培养上清液中LDH、TNF-α、IFN-γ、GzmB及PRF蛋白水平明显降低(均P < 0.05);与IL-22组比较,IL-22 + Stattic组共培养上清液中上述蛋白水平均明显升高(均P < 0.05),说明IL-22可降低NK92细胞对T24细胞的毒性,STAT3抑制剂可逆转此作用。与DDP组比较,IL-22 + DDP组T24细胞增殖活力明显升高(P < 0.05);与IL-22 + DDP组比较,IL-22 + DDP + Stattic组T24细胞增殖活力明显降低(P < 0.05);与DDP组比较,IL-22 + DDP组T24细胞的凋亡率明显升高(P < 0.05);与IL-22 + DDP组比较,IL-22 + DDP + Stattic组T24细胞的凋亡率明显升高(P < 0.05),说明IL-22调控STAT3影响T24细胞DDP耐药性及NK细胞免疫功能。结论: IL-22通过激活STAT3信号轴促进T24细胞的DDP耐药性,抑制NK细胞功能。


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