1.Clinical prognosis analysis of 177 cases bladder adenocarcinoma in a single center in China and comparison with SEER database
Tianxiang ZHANG ; Lu ZHANG ; Guoliang YANG ; Lianhua ZHANG ; Ming CAO ; Di JIN ; Ruiyun ZHANG ; Guanglei ZHUANG ; Yiran HUANG ; Wei XUE ; Haige CHEN
Chinese Journal of Urology 2025;46(3):166-172
Objective:To investigate the clinical and pathological characteristics, prognostic factors, and treatment outcomes of bladder adenocarcinoma.Methods:The data of 177 bladder adenocarcinoma patients treated at Renji Hospital, Shanghai Jiaotong University School of Medicine from January 2003 to December 2023, and 2 687 bladder adenocarcinoma patients from the SEER database (2000—2021) were reviewed retrospectively. The clinicopathological and prognostic characteristics were compared between the two cohorts. Patients with urachal adenocarcinoma or primary bladder adenocarcinoma were included, while metastatic bladder adenocarcinoma from other sites and urothelial carcinoma with glandular components were excluded. The Chi-square test was used for comparison of categorical data, and propensity score matching (1∶1) was applied to match baseline data between the Renji and SEER cohorts. Kaplan-Meier survival curves were generated, and log-rank tests were used for comparisons. Univariate and multivariate Cox regression analyses were performed using the survival R package, with P-values calculated via Wald tests. Results:The proportion of localized bladder adenocarcinoma was significantly higher in the Renji cohort than in the SEER cohort [61.0% (108/177) vs. 19.4% (521/2 687), P<0.001], and mucinous adenocarcinoma was more common in Renji cohort [33.3% (59/177) vs. 22.6% (607/2 687), P<0.001]. After matching for baseline factors, including SEER stage and pathological grade, survival analysis revealed that the Renji cohort patients had slightly better survival compared to the SEER cohort [median survival: 55.4 (24.1, 196.2) months vs. 39.2 (13.6, 137.4)months, P=0.033]. Multivariate Cox analysis identified SEER stage [Renji cohort: HR=3.83 (95% CI 1.62-9.07), P=0.002; SEER cohort: HR=3.67 (95% CI 3.13-4.31), P<0.001] and pathological grade [Renji cohort: HR = 2.76 (95% CI 1.54-4.95), P=0.001; SEER cohort: HR=1.46 (95% CI 1.29-1.65), P<0.001] as independent prognostic factors. In the Renji cohort, no significant differences were observed in the median progression-free survival [40.1 (19.5, 91.6) months vs. 40.9 (12.8, not reached)months, P=0.976] and overall survival [79.3 (37.1, 195.8) months vs. 53.9 (16.4, 129.5)months, P=0.374] between patients receiving adjuvant chemotherapy and those not receiving it. However, among patients with lymph node-positive bladder adenocarcinoma, adjuvant chemotherapy significantly improved both progression-free survival [40.1 (38.2, 75.4) months vs. 12.2 (3.1, 12.2)months, P=0.004] and overall survival [68.2 (46.2, 84.5)months vs. 28.1 (4.3, 28.3)months, P=0.006]. Conclusions:Bladder adenocarcinoma is rare and associated with poor prognosis. Compared to the SEER cohort, Renji cohort patients had more localized disease, with no significant differences in other features. SEER stage and pathological grade were independent prognostic factors in both cohorts. Lymph node-positive bladder adenocarcinoma patients in the Renji cohort benefited significantly from adjuvant chemotherapy.
2.GPT2-ICC: A data-driven approach for accurate ion channel identification using pre-trained large language models.
Zihan ZHOU ; Yang YU ; Chengji YANG ; Leyan CAO ; Shaoying ZHANG ; Junnan LI ; Yingnan ZHANG ; Huayun HAN ; Guoliang SHI ; Qiansen ZHANG ; Juwen SHEN ; Huaiyu YANG
Journal of Pharmaceutical Analysis 2025;15(8):101302-101302
Current experimental and computational methods have limitations in accurately and efficiently classifying ion channels within vast protein spaces. Here we have developed a deep learning algorithm, GPT2 Ion Channel Classifier (GPT2-ICC), which effectively distinguishing ion channels from a test set containing approximately 239 times more non-ion-channel proteins. GPT2-ICC integrates representation learning with a large language model (LLM)-based classifier, enabling highly accurate identification of potential ion channels. Several potential ion channels were predicated from the unannotated human proteome, further demonstrating GPT2-ICC's generalization ability. This study marks a significant advancement in artificial-intelligence-driven ion channel research, highlighting the adaptability and effectiveness of combining representation learning with LLMs to address the challenges of imbalanced protein sequence data. Moreover, it provides a valuable computational tool for uncovering previously uncharacterized ion channels.
3.GPT2-ICC:A data-driven approach for accurate ion channel identification using pre-trained large language models
Zihan ZHOU ; Yang YU ; Chengji YANG ; Leyan CAO ; Shaoying ZHANG ; Junnan LI ; Yingnan ZHANG ; Huayun HAN ; Guoliang SHI ; Qiansen ZHANG ; Juwen SHEN ; Huaiyu YANG
Journal of Pharmaceutical Analysis 2025;15(8):1800-1809
Current experimental and computational methods have limitations in accurately and efficiently classi-fying ion channels within vast protein spaces.Here we have developed a deep learning algorithm,GPT2 Ion Channel Classifier(GPT2-ICC),which effectively distinguishing ion channels from a test set con-taining approximately 239 times more non-ion-channel proteins.GPT2-ICC integrates representation learning with a large language model(LLM)-based classifier,enabling highly accurate identification of potential ion channels.Several potential ion channels were predicated from the unannotated human proteome,further demonstrating GPT2-ICC's generalization ability.This study marks a significant advancement in artificial-intelligence-driven ion channel research,highlighting the adaptability and effectiveness of combining representation learning with LLMs to address the challenges of imbalanced protein sequence data.Moreover,it provides a valuable computational tool for uncovering previously uncharacterized ion channels.
4.Clinical prognosis analysis of 177 cases bladder adenocarcinoma in a single center in China and comparison with SEER database
Tianxiang ZHANG ; Lu ZHANG ; Guoliang YANG ; Lianhua ZHANG ; Ming CAO ; Di JIN ; Ruiyun ZHANG ; Guanglei ZHUANG ; Yiran HUANG ; Wei XUE ; Haige CHEN
Chinese Journal of Urology 2025;46(3):166-172
Objective:To investigate the clinical and pathological characteristics, prognostic factors, and treatment outcomes of bladder adenocarcinoma.Methods:The data of 177 bladder adenocarcinoma patients treated at Renji Hospital, Shanghai Jiaotong University School of Medicine from January 2003 to December 2023, and 2 687 bladder adenocarcinoma patients from the SEER database (2000—2021) were reviewed retrospectively. The clinicopathological and prognostic characteristics were compared between the two cohorts. Patients with urachal adenocarcinoma or primary bladder adenocarcinoma were included, while metastatic bladder adenocarcinoma from other sites and urothelial carcinoma with glandular components were excluded. The Chi-square test was used for comparison of categorical data, and propensity score matching (1∶1) was applied to match baseline data between the Renji and SEER cohorts. Kaplan-Meier survival curves were generated, and log-rank tests were used for comparisons. Univariate and multivariate Cox regression analyses were performed using the survival R package, with P-values calculated via Wald tests. Results:The proportion of localized bladder adenocarcinoma was significantly higher in the Renji cohort than in the SEER cohort [61.0% (108/177) vs. 19.4% (521/2 687), P<0.001], and mucinous adenocarcinoma was more common in Renji cohort [33.3% (59/177) vs. 22.6% (607/2 687), P<0.001]. After matching for baseline factors, including SEER stage and pathological grade, survival analysis revealed that the Renji cohort patients had slightly better survival compared to the SEER cohort [median survival: 55.4 (24.1, 196.2) months vs. 39.2 (13.6, 137.4)months, P=0.033]. Multivariate Cox analysis identified SEER stage [Renji cohort: HR=3.83 (95% CI 1.62-9.07), P=0.002; SEER cohort: HR=3.67 (95% CI 3.13-4.31), P<0.001] and pathological grade [Renji cohort: HR = 2.76 (95% CI 1.54-4.95), P=0.001; SEER cohort: HR=1.46 (95% CI 1.29-1.65), P<0.001] as independent prognostic factors. In the Renji cohort, no significant differences were observed in the median progression-free survival [40.1 (19.5, 91.6) months vs. 40.9 (12.8, not reached)months, P=0.976] and overall survival [79.3 (37.1, 195.8) months vs. 53.9 (16.4, 129.5)months, P=0.374] between patients receiving adjuvant chemotherapy and those not receiving it. However, among patients with lymph node-positive bladder adenocarcinoma, adjuvant chemotherapy significantly improved both progression-free survival [40.1 (38.2, 75.4) months vs. 12.2 (3.1, 12.2)months, P=0.004] and overall survival [68.2 (46.2, 84.5)months vs. 28.1 (4.3, 28.3)months, P=0.006]. Conclusions:Bladder adenocarcinoma is rare and associated with poor prognosis. Compared to the SEER cohort, Renji cohort patients had more localized disease, with no significant differences in other features. SEER stage and pathological grade were independent prognostic factors in both cohorts. Lymph node-positive bladder adenocarcinoma patients in the Renji cohort benefited significantly from adjuvant chemotherapy.
5.Research on ameliorating pulmonary fibrosis in silicosis mice of Cordyceps cicadae polysaccharides
Lei CAO ; Guoliang WANG ; Lei CHEN ; Shengping LIU
Chinese Journal of Industrial Hygiene and Occupational Diseases 2024;42(9):641-649
Objective:A mouse silicosis model was constructed by injecting silicon dioxide (SiO 2) particles into the trachea to explore the effect and mechanism of Cordyceps cicadae polysaccharides (CCP) on ameliorating pulmonary fibrosis in silicosis mice. Methods:In May 2023, CCP were extracted and isolated, the monosaccharide composition and functional group composition were analyzed by high performance liquid chromatography and Fourier transform infrared spectroscopy. C57BL/6J mice were injected with 50 μl 50 mg/ml SiO 2 suspension to construct silicosis mouse model, which were then randomly divided into model group, CCP intervention groups [low dose group (LCCP group), medium dose group (MCCP group) and high dose group (HCCP group) ], the control group was administered by physiological saline, 8 mice in each group. Mice in the CCP intervention groups received oral gavage administration once daily with CCP solution (100, 200 and 400 mg/kg), while control group and model group received physiological saline, lasted for 30 days. The body weight of mice was recorded and the lung coefficient was calculated. The pathomorphological changes of mouse lung tissue were determined by HE and Masson staining. The contents of fibrosis indexes [hydroxyproline acid (HYP), connective tissue growth factor (CTGF) and matrix metallopeptidase 2 (MMP-2) ] of lung tissue and the pro-inflammatory factors[tumor necrosis factor-alpha (TNF-α), interleukin-1 beta (IL-1β) and interleukin-6 (IL-6) ] of lung tissue and alveolar lavage fluid were determined by ELISA. The expression level of Collagen Ⅰ was determined by immunohistochemistry. The relative protein expression levels of transforming growth factor-β1 (TGF-β1), P-Smad2, α-smooth muscle actin (α-SMA), Toll-like receptor 4 (TLR4), nuclear factor kappa-B p65 (NF-κBp65) and myeloid differentiation primary response gene 88 (MyD88) in lung tissue were determined by Western blot. Results:The total sugar content of the CCP was 86.78%, composed of D-mannose, D-rhamnose, D-glucose and D-galactose, with a molar ratio of 12.71∶1.53∶1.00∶12.64. The infrared spectrum indicated the characteristic groups of its polysaccharides. Compared with the control group, the body weight of mice in the model group was decreased, lung coefficient was increased, the contents of HYP, CTGF and MMP-2 in lung tissue were increased, and the contents of TNF-α, IL-1β and IL-6 in lung tissue and alveolar lavage fluid were increased ( P<0.05). The mice lung showed massive inflammatory cell infiltration and collagen fiber deposition, and the silicosis fibrosis was severe. The expression of CollagenⅠin lung tissue of model group was increased, and the proteins expression levels of TGF-β1, P-Smad2/Smad2, α-SMA, TLR4, NF-κBp65 and MyD88 were increased in mouse lung tissue ( P<0.05). Compared with the model group, the body weights of mice in the MCCP and HCCP groups were increased, the lung coefficients were decreased, the contents of HYP, CTGF and MMP-2 in lung tissue were decreased, and the contents of TNF-α, IL-1β and IL-6 in lung tissue and alveolar lavage fluid were decreased ( P<0.05). The inflammatory cell infiltration in the lung was reduced, and the degree of fibrosis was improved to varying degrees. The expression level of CollagenⅠwas down-regulated in the lung tissue of MCCP and HCCP groups, and the protein expression levels of TGF-β1, P-Smad2/Smad2, α-SMA, TLR4, NF-κBp65 and MyD88 were decreased in lung tissue ( P<0.05) . Conclusion:The CCP could reduce the levels of fibrosis-related indicators and pro-inflammatory factors in lung tissue, ameliorating mouse lung inflammation and silicosis fibrosis caused by SiO 2 particles by inhibiting the activation of TGF-β1/Smad pathway and TLR4/nuclear factor kappa-B (NF-κB) pathway.
6.Pharmacokinetics of Total Alkaloids of Corydalis saxicola in Depression Model Rats
Huaxi HANG ; Meishuang YU ; Yu YE ; Qian HUANG ; Yiran WANG ; Xuewen SHAO ; Peiyao CHEN ; Yang CAO ; Guoliang DAI ; Wenzheng JU
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(14):175-183
ObjectiveTo investigate the effect of total alkaloids of Corydalis saxicola on a rat model of lipopolysaccharide(LPS)-induced depression, as well as the pharmacokinetic characteristics of 8 of its major components. MethodTwenty-four male SD rats were randomly divided into normal group, model group, fluoxetine group(10 mg·kg-1) and total alkaloids of C. saxicola group(210 mg·kg-1), with 6 rats in each group. In addition to the normal group, the rats were injected intraperitoneally with LPS to establish the inflammation model of depression, and the drug administration was started 1 week after modeling, and the administration groups were gavaged according to the corresponding dose, and the normal and model groups were intragastric administration with equal volume of distilled water, and the administration was performed along with the modeling. After two weeks of continuous administration, the effect of total alkaloids of C. saxicola on the behavior of depressed rats were tested by sucrose preference, forced swimming and open field experiments, the levels of tumor necrosis factor-α(TNF-α), interleukin(IL)-1β and IL-6 in serum of rats were determined by enzyme-linked immunosorbent assay(ELISA), the histopathological changes of rat hippocampus were observed by hematoxylin-eosin(HE) staining. After the last administration, blood was collected from orbit according to the set time, and ultra-high performance liquid chromatography-triple quadrupole tandem mass spectrometry(UPLC-QqQ-MS) was established to simultaneously detect the concentrations of dehydrocavidine, tetrahydropalmatine, coptisine, palmatine, jatrorrhizine, berberine, berberrubine and epiberberine in plasma, and drug-time curves were drawn. The pharmacokinetic parameters were analyzed by DAS 2.0 software. ResultCompared with the normal group, the model group exhibited a decrease in sucrose preference rate, total distance traveled in the open field, as well as an increase in swimming immobility time and serum inflammatory factor expression(P<0.01). In contrast, compared with the model group, rats in each administration group showed an increase in sucrose preference rate and total distance traveled in the open field, a decrease in swimming immobility time, and a reduction in serum inflammatory factor expression(P<0.05, P<0.01). Additionally, HE staining results revealed that neurons in the hippocampus of rats from the model group were characterized by loss, disorganization and residual vacuoles, whereas those from the total alkaloids of C.saxicola group displayed an increase in number with orderly arrangement and clear cytoplasm. Pharmacokinetic results showed that the time to peak(tmax) and half-life(t1/2) of the 8 active ingredients were 0.19-2.06 h and 3.71-8.70 h after continuous administration of total alkaloids of C. saxicola. Among them, the area under the curve(AUC0-∞) of tetrahydropalmatine was the highest and the t1/2 was the shortest, and the AUC0-∞ of coptisine, palmatine, jatrorrhizine, berberine, berberrubine and epiberberine were low. The curves of dehydrocavidine, coptisine, palmatine, berberine and epiberberine showed obvious double peak phenomenon. ConclusionTotal alkaloids of C. saxicola can improve the depression-like behavior of rats, inhibit the expression of inflammatory factors in serum, improve the pathological injury of hippocampus, and has the antidepressant effect. Meanwhile, the effective site is absorbed quickly and eliminated slowly in the depressed model rats, and the efficacy is maintained for a long time.
7.Experts consensus on standard items of the cohort construction and quality control of temporomandibular joint diseases (2024)
Min HU ; Chi YANG ; Huawei LIU ; Haixia LU ; Chen YAO ; Qiufei XIE ; Yongjin CHEN ; Kaiyuan FU ; Bing FANG ; Songsong ZHU ; Qing ZHOU ; Zhiye CHEN ; Yaomin ZHU ; Qingbin ZHANG ; Ying YAN ; Xing LONG ; Zhiyong LI ; Yehua GAN ; Shibin YU ; Yuxing BAI ; Yi ZHANG ; Yanyi WANG ; Jie LEI ; Yong CHENG ; Changkui LIU ; Ye CAO ; Dongmei HE ; Ning WEN ; Shanyong ZHANG ; Minjie CHEN ; Guoliang JIAO ; Xinhua LIU ; Hua JIANG ; Yang HE ; Pei SHEN ; Haitao HUANG ; Yongfeng LI ; Jisi ZHENG ; Jing GUO ; Lisheng ZHAO ; Laiqing XU
Chinese Journal of Stomatology 2024;59(10):977-987
Temporomandibular joint (TMJ) diseases are common clinical conditions. The number of patients with TMJ diseases is large, and the etiology, epidemiology, disease spectrum, and treatment of the disease remain controversial and unknown. To understand and master the current situation of the occurrence, development and prevention of TMJ diseases, as well as to identify the patterns in etiology, incidence, drug sensitivity, and prognosis is crucial for alleviating patients′suffering.This will facilitate in-depth medical research, effective disease prevention measures, and the formulation of corresponding health policies. Cohort construction and research has an irreplaceable role in precise disease prevention and significant improvement in diagnosis and treatment levels. Large-scale cohort studies are needed to explore the relationship between potential risk factors and outcomes of TMJ diseases, and to observe disease prognoses through long-term follw-ups. The consensus aims to establish a standard conceptual frame work for a cohort study on patients with TMJ disease while providing ideas for cohort data standards to this condition. TMJ disease cohort data consists of both common data standards applicable to all specific disease cohorts as well as disease-specific data standards. Common data were available for each specific disease cohort. By integrating different cohort research resources, standard problems or study variables can be unified. Long-term follow-up can be performed using consistent definitions and criteria across different projects for better core data collection. It is hoped that this consensus will be facilitate the development cohort studies of TMJ diseases.
8.Efficacy and safety of transcatheter arterial infusion chemotherapy with gemcitabine and nab-paclitaxel regimen for advanced pancreatic cancer
Zhewei ZHANG ; Hui ZENG ; Jiaping ZHENG ; Jun LUO ; Liwen GUO ; Fei CAO ; Weiren LIANG ; Guoliang SHAO
Journal of Interventional Radiology 2024;33(5):512-515
Objective To evaluate the clinical efficacy and safety of transcatheter arterial infusion with gemcitabine and nab-paclitaxel(GN)as first-line therapy in treating patients with advanced pancreatic cancer.Methods The clinical data of a total of 50 patients with advanced pancreatic cancer,who were treated with transcatheter arterial infusion chemotherapy with GN regimen at the Zhejiang Cancer Hospital of China between January 2016 and December2020,were collected The objective effective rate(ORR),progression-free survival(PFS),overall survival(OS)and treatment-related toxic reactions were analyzed.Results A total of 236 times of transcatheter arterial infusion chemotherapy were carried out in the 50 patients,with an average perfusion procedure of 4.72 times per patient.Complete remission(CR)was obtained in 0 patient,partial remission(PR)in 16 patients,and stable disease(SD)in 21 patients.The ORR was 32%,the median PFSwas5.1 months,and the OS was 9.8 months.The main adverse events included neutropenia,thrombocytopenia,vomiting,nausea,fatigue,etc.Conclusion For patients with advanced pancreatic cancer,transcatheter arterial infusion chemotherapy with GN regimen carries good short-term efficacy and safety,it can improve patient's PFS and OS to a certain extent.(J Intervent Radiol,2024,33:512-515)
9.Research on ameliorating pulmonary fibrosis in silicosis mice of Cordyceps cicadae polysaccharides
Lei CAO ; Guoliang WANG ; Lei CHEN ; Shengping LIU
Chinese Journal of Industrial Hygiene and Occupational Diseases 2024;42(9):641-649
Objective:A mouse silicosis model was constructed by injecting silicon dioxide (SiO 2) particles into the trachea to explore the effect and mechanism of Cordyceps cicadae polysaccharides (CCP) on ameliorating pulmonary fibrosis in silicosis mice. Methods:In May 2023, CCP were extracted and isolated, the monosaccharide composition and functional group composition were analyzed by high performance liquid chromatography and Fourier transform infrared spectroscopy. C57BL/6J mice were injected with 50 μl 50 mg/ml SiO 2 suspension to construct silicosis mouse model, which were then randomly divided into model group, CCP intervention groups [low dose group (LCCP group), medium dose group (MCCP group) and high dose group (HCCP group) ], the control group was administered by physiological saline, 8 mice in each group. Mice in the CCP intervention groups received oral gavage administration once daily with CCP solution (100, 200 and 400 mg/kg), while control group and model group received physiological saline, lasted for 30 days. The body weight of mice was recorded and the lung coefficient was calculated. The pathomorphological changes of mouse lung tissue were determined by HE and Masson staining. The contents of fibrosis indexes [hydroxyproline acid (HYP), connective tissue growth factor (CTGF) and matrix metallopeptidase 2 (MMP-2) ] of lung tissue and the pro-inflammatory factors[tumor necrosis factor-alpha (TNF-α), interleukin-1 beta (IL-1β) and interleukin-6 (IL-6) ] of lung tissue and alveolar lavage fluid were determined by ELISA. The expression level of Collagen Ⅰ was determined by immunohistochemistry. The relative protein expression levels of transforming growth factor-β1 (TGF-β1), P-Smad2, α-smooth muscle actin (α-SMA), Toll-like receptor 4 (TLR4), nuclear factor kappa-B p65 (NF-κBp65) and myeloid differentiation primary response gene 88 (MyD88) in lung tissue were determined by Western blot. Results:The total sugar content of the CCP was 86.78%, composed of D-mannose, D-rhamnose, D-glucose and D-galactose, with a molar ratio of 12.71∶1.53∶1.00∶12.64. The infrared spectrum indicated the characteristic groups of its polysaccharides. Compared with the control group, the body weight of mice in the model group was decreased, lung coefficient was increased, the contents of HYP, CTGF and MMP-2 in lung tissue were increased, and the contents of TNF-α, IL-1β and IL-6 in lung tissue and alveolar lavage fluid were increased ( P<0.05). The mice lung showed massive inflammatory cell infiltration and collagen fiber deposition, and the silicosis fibrosis was severe. The expression of CollagenⅠin lung tissue of model group was increased, and the proteins expression levels of TGF-β1, P-Smad2/Smad2, α-SMA, TLR4, NF-κBp65 and MyD88 were increased in mouse lung tissue ( P<0.05). Compared with the model group, the body weights of mice in the MCCP and HCCP groups were increased, the lung coefficients were decreased, the contents of HYP, CTGF and MMP-2 in lung tissue were decreased, and the contents of TNF-α, IL-1β and IL-6 in lung tissue and alveolar lavage fluid were decreased ( P<0.05). The inflammatory cell infiltration in the lung was reduced, and the degree of fibrosis was improved to varying degrees. The expression level of CollagenⅠwas down-regulated in the lung tissue of MCCP and HCCP groups, and the protein expression levels of TGF-β1, P-Smad2/Smad2, α-SMA, TLR4, NF-κBp65 and MyD88 were decreased in lung tissue ( P<0.05) . Conclusion:The CCP could reduce the levels of fibrosis-related indicators and pro-inflammatory factors in lung tissue, ameliorating mouse lung inflammation and silicosis fibrosis caused by SiO 2 particles by inhibiting the activation of TGF-β1/Smad pathway and TLR4/nuclear factor kappa-B (NF-κB) pathway.
10.Mycobacterium tuberculosis induces differentiation imbalance of innate lymphoid cells via CD14 + monocytes/macrophages
Su ZHANG ; Min OU ; Xuefeng ZHOU ; Yuping MO ; Tingzhi CAO ; Guoliang ZHANG
Chinese Journal of Infectious Diseases 2024;42(10):608-617
Objective:To analyze the proportions of innate lymphoid cells (ILCs) subgroups during the process of Mycobacterium tuberculosis (MTB) infection, and to explore the molecular mechanism regulating the differentiation of ILCs during MTB infection. Methods:From March to October 2022, 31 patients with active pulmonary tuberculosis (ATB) and 17 patients who had recovered from pulmonary tuberculosis were enrolled from Shenzhen Third People′s Hospital. Additionally, 30 healthy controls were recruited from the physical examination department. Peripheral blood mononuclear cells (PBMCs) were extracted from all subjects, and the proportions of ILC, ILC1, ILC2 and ILC3 in lymphocytes of PBMCs from different populations were analyzed using flow cytometry. PBMCs from 18 healthy controls were induced in vitro with MTB H37Rv lysate or live Bacillus Calmette-Guérin (BCG) bacteria, and the differentiation of ILC subgroups was analyzed using flow cytometry. CD14 + cells from PBMCs of 29 healthy controls were isolated using magnetic bead sorting technology, and the cells were divided into three groups, including control group, CD14 - group, and CD14 + complement group. The CD14 + complement group was supplemented with CD14 + cells into CD14 - PBMCs through a Transwell chamber, and induced in vitro with H37Rv lysate. The differentiation of ILC subgroups was analyzed using flow cytometry. Statistical analyses were performed using Mann-Whitney U test, Kruskal-Wallis test, and Wilcoxon signed-rank test. Results:The proportions of ILCs in lymphocytes in healthy controls, ATB and recovered tuberculosis groups showed no statistically significant differences ( H=0.07, P=0.965). The proportion of ILC1 in lymphocytes in the peripheral blood of patients with ATB was lower than that in the healthy control group ( U=271.00), and the proportion of ILC2 was higher than that in the healthy control group ( U=299.00). The proportion of ILC1 in the peripheral blood of recovered tuberculosis patients was lower than that in the healthy control group ( U=123.00), and the proportion of ILC3 in the recovered tuberculosis group was higher than those in ATB and healthy control groups ( U=78.00 and 102.50, respectively). All differences were statistically significant (all P<0.05). Compared with the control group, the proportions of ILC ( W=-116.00 and -145.00, respectively) and ILC2 ( W=-149.00 and -155.00, respectively) in lymphocytes decreased after PBMCs induced by H37Rv lysate or BCG live bacteria (all P<0.05). The proportion of ILC1 showed no significant change after induction by H37Rv lysate ( W=-67.00, P=0.154), but decreased after induction by BCG ( W=-121.00, P=0.007) with statistical significance. There was no significant difference in the proportions of ILC1 in lymphocytes among control group, CD14 - group, and CD14 + complement group before and after induction by H37Rv lysate ( W=-159.00, 43.00 and -37.00, respectively, all P>0.05). The proportions of ILC2 in lymphocytes decreased after induction ( W=-435.00, -383.00 and -405.00, respectively) among the three groups, and the differences were all statistically significant (all P<0.001). The proportions of ILC3 in lymphocytes in the control group and CD14 + complement group decreased ( W=-250.00 and -262.00, respectively), and the differences were statistically significant (all P<0.05), while the proportion of ILC3 in lymphocytes in the CD14 - group did not change before and after induction, and the difference was not statistically significant ( W=-172.00, P=0.051). Conclusions:MTB infection induces an imbalance in the differentiation of ILCs subgroups, and the removal of CD14 + cells inhibits MTB-induced ILC3 differentiation without significantly affecting the differentiation of ILC1 and ILC2.

Result Analysis
Print
Save
E-mail