1.Mechanism of ginsenoside Rg1 inhibiting the proliferation and metastasis of tongue squamous cell carcinoma
Xue LI ; Sha-Fei ZHAI ; Xin-Yang MA ; Dan-Yang WANG ; Juan CHAI ; Fang ZHOU ; Jia ZHANG
The Chinese Journal of Clinical Pharmacology 2024;40(13):1888-1892
Objective To investigate the inhibitory effect of Ginsenosides Rg1(GS-Rg1)on the proliferation and metastasis of tongue squamous cell carcinoma(TSCC),and its related mechanisms of action.Methods TSCC cells were treated with GS-Rg1 at concentrations of 1.25,2.5,5.0 and 10.0 μmol·L-1 for 48 hours.The proliferation ability of cells at different concentrations was measured by cell counting kit-8(CCK-8)experiment,and the IC5ovalue of GS-Rg1 at CAL-27 for 48 hours was calculated.TSCC cells CAL-27 were divided into control group and GS-Rg1 group.The control group and GS-Rg1 group were treated with 0.9%NaCl and IC50concentration of GS-Rg1 for 48 hours,respectively.The cell cycle distribution of each group was detected by flow cytometry,and the cell metastasis ability of each group was detected by Transwell experiment.Construct TOP/FOP Flash plasmid,transfect control group and GS-Rg1 group,and detect the effect of GS-Rg1 effect on wnt/β-catenin signaling pathway activity in TSCC cell CAL-27 using luciferase assay.Using wnt/β-catenin pathway inhibitor XAV939 treated GS-Rg1 group cells(XAV939+GS-Rg1 group),and wnt/β-catenin pathway activator HLY78 was used to treat GS-Rg1 group cells(HLY78+GS-Rg1 group)and detect changes of wnt/β-catenin signaling pathway activity,the cell proliferation ability,cell cycle distribution,and metastasis ability in XAV939+GS-Rg1 group,HLY78+GS-Rg1 group and GS-Rg1 group.The expression of wnt/β-catenin signaling pathway related proteins β-catenin,and its downstream cell cycle related proteins cellular myelocytomatosis oncogene(cMYC),Cyclin dependent kinase 4(CDK4),andcyclinD1,as well as metastasis related proteins E-cadherin,N-cadherin and matrix metalloproteinase 2(MMP-2)were detected by Western blotting in each group of cells.Results GS-Rg1 significantly inhibited the proliferation ability of TSCC cells CAL-27(P<0.05),and the IC50value of GS-Rg1 on CAL-27 was(5.46±1.58)μmol·L-1.The ratio of GO/G1 phase cells in the control group and GS-Rg1 group were(60.65±2.16)%and(71.20±2.38)%,respectively;the number of cell transmembrane penetration were 87.33±7.51 and 50.67±3.21,respectively;the luciferase activity were 1.00±0.02 and 0.35±0.06,respectively.Compared with the control group,the GS-Rg1 group showed cell cycle arrest in GO/G1 phase,decreased cell metastasis ability,and the activity of wnt/β-catenin signaling pathway decreased(P<0.05,P<0.01).Compared with the GS-Rg1 group,the activity of the wnt/β-catenin signaling pathway was decreased,cell proliferation ability and metastasis ability was decreased(P<0.05),while the number of GO/G1 phase cells was increased(P<0.05),the expression of β-catenin,cMYC,CDK4,cyclinD1,E-cadherin and MMP-2 proteins were decreased(P<0.05),while the expression of N-cadherin protein increased in XAV939+GS-Rg1 group cells.However,the result were opposite in the HLY78+GS-Rg1 group of cells.Conclusion GS-Rg1 downregulates wnt/β-catenin signaling pathway inhibits the proliferation and metastasis ability of TSCC cells.
2.Advances in Quantification and Site Stoichiometry Analysis Methods for Phosphorylated Proteins
Yuan LIU ; Rui ZHAI ; Fan WU ; Zhan-Ying CHU ; Yang ZHAO ; Xin-Hua DAI ; Xiang FANG ; Xiao-Ping YU
Chinese Journal of Analytical Chemistry 2024;52(5):609-623
The post-translational modification of proteins is a key mechanism that imparts physiological functions to proteins,among which reversible phosphorylation modifications play a pivotal role in many biological processes.Aberrant changes in phosphorylation are often closely associated with various major disease processes.In recent years,with the aid of proteomic technologies and methods,high-throughput,high-precision qualitative and quantitative approaches for phosphorylated proteins have rapidly advanced.This article reviews the research progress of phosphorylated protein quantification and chemical proteomics analysis methods based on the"bottom-up"strategy,including phosphopeptide enrichment methods,mass spectrometry fragmentation methods,quantification analysis methods and phosphorylation site stoichiometry,and discusses the development trend of quantification and stoichiometric analysis methods for phosphorylated proteins.
3.The role of endoplasmic reticulum stress in gut-pancreas axis dysfunction in type 2 diabetes
Li-ran LEI ; Ya-xin FU ; Quan LIU ; Jia-yu ZHAI ; Zhu-fang SHEN ; Hui CAO ; Shuai-nan LIU
Acta Pharmaceutica Sinica 2024;59(12):3189-3198
Type 2 diabetes mellitus (T2DM) is a complex metabolic disorder characterized by chronic hyperglycemia, hyperlipidemia, and peripheral insulin resistance. Endoplasmic reticulum stress (ERS), a response to cellular stress, is activated across various tissues during the progression of T2DM, leading to disruptions in protein synthesis. Notably, epithelial and endocrine cells with hormone-secreting functions are particularly vulnerable to functional impairments induced by ERS. The gut-pancreas axis is essential for regulating metabolism and the progression of T2DM. Intestinal epithelial L cells, integral to the intestinal barrier, can secrete the glucagon-like peptide-1 (GLP-1). This hormone promotes insulin secretion from pancreatic
4.Myosin Heavy Chain 7 Gene-derived miRNA-208b-3p Enhances the Fibrosis-related Gene Expression in Cardiac Fibroblasts
Meng-zhen ZHANG ; Lin ZHAI ; Lin-lin GOU ; Jie-ning ZHU ; Hui LI ; Jin-dong XU ; Xian-hong FANG ; Zhi-xin SHAN
Journal of Sun Yat-sen University(Medical Sciences) 2023;44(4):642-650
ObjectiveTo investigate the effect of myosin heavy chain 7 gene-derived miRNA-208b-3p on the fibrotic phenotype of cardiac fibroblasts. MethodsmiRNA chip array was performed to detect the dysregulated miRNAs in the myocardium of diabetic db/db mice and db/m control mice. Neonatal mouse ventricular cardiomyocytes (NMVCs) and cardiac fibroblasts (CFs) were isolated from C57BL/6 mice and cultured. Real-time quantitative PCR (RT-qPCR) was conducted to determine the expression of miR-208b-3p in mouse CFs and NMVCs subjected to angiotensinⅡ(AngⅡ) and high glucose plus glucose oxidase (G/Go) treatment, respectively. Cell counting kit 8(CCk8) assay, flow cytometry and determination of fibrosis-related protein, including COL1A1, COL3A1and α-SMA, were performed in mCFs transfected with miR-208b-3p. Dual luciferase reporter assay was performed to confirm the interaction between miR-208b-3p and the 3'-UTR of metal response element binding transcription factor 2 (Mtf2) and progesterone receptor membrane component 1(Pgrmc1), respectively. The expressions of Mtf2 and Pgrmc1 at the mRNA and protein levels in mCFs after miR-208b-3p mimic transfection were determined using RT-qPCR and Western blot assay, respectively. The small interfering RNA (siRNA) was used to inhibit Mtf2 and Pgrmc1 expression in mCFs, and the effects of Mtf2 siRNA, Pgrmc1 siRNA and miR-208b-3p on fibrosis-related protein expression in mCFs were investigated. ResultsResults of miRNA chip array and RT-qPCR assay showed that miR-208b-3p was up-regulated in the myocardium of the diabetic db/db mice. miR-208b precursor and the host gene of Myh7 were consistently increased in db/db mice. miR-208b-3p and Myh7 mRNA were expressed in mCFs and NMVCs, but the levels of miR-208b-3p and Myh7 mRNA in NMVCs were much higher than those in mCFs. miR-208b-3p was up-regulated in mCFs and NMVCs subjected to Ang Ⅱ and G/Go treatment, respectively. miR-208b-3p could significantly enhance fibrosis-related protein, including COL1A1, COL3A1 and α-SMA, in mCFs, without affecting the proliferation activity and cell cycle distribution of mCFs. Dual luciferase reporter assay revealed the interactions of miR-208b-3p with the 3'-UTR of Mtf2 and Pgrmc1. The results of RT-qPCR and Western blotting confirmed that miR-208b-3p inhibited Mtf2 and Pgrmc1 expression at the post- transcriptional level. Transfection with miR-208b-3p mimic, Mtf2 siRNA and Pgrmc1 siRNA could consistently enhance the fibrosis-related protein expression in the cardiac fibroblasts. ConclusionsmiR-208b-3p enhances fibrosis-related gene expression by targeting Mtf2 and Pgrmc1in mCFs.
5.The efficacy of radiotherapy based combined therapy for unresectable locally invasive bladder cancer and its associated factors analysis.
Si Jin ZHONG ; Jun Jun GAO ; Ping TANG ; Yue Ping LIU ; Shu Lian WANG ; Hui FANG ; Jing Ping QIU ; Yong Wen SONG ; Bo CHEN ; Shu Nan QI ; Yuan TANG ; Ning Ning LU ; Hao JING ; Yi Rui ZHAI ; Ai Ping ZHOU ; Xin Gang BI ; Jian Hui MA ; Chang Ling LI ; Yong ZHANG ; Jian Zhong SHOU ; Nian Zeng XING ; Ye Xiong LI
Chinese Journal of Oncology 2023;45(2):175-181
Objective: Retrospective analysis of the efficacy and influencing factors of bladder preservation integrated therapy for unresectable invasive bladder cancer confined to the pelvis was done, also including the bladder function preservation and adverse effects analysis. Methods: Sixty-nine patients with unresectable locally invasive bladder cancer who received radiotherapy-based combination therapy from March 1999 to December 2021 at our hospital were selected. Among them, 42 patients received concurrent chemoradiotherapy, 32 underwent neoadjuvant chemotherapyand 43 with transurethral resection of bladder tumors (TURBT) prior to radiotherapy. The late adverse effect of radiotherapy, preservation of bladder function, replase and metastasis and survival were followed-up. Cox proportional hazards models were applied for the multifactorial analysis. Results: The median age was 69 years. There were 63 cases (91.3%) of uroepithelial carcinoma, 64 of stage Ⅲ and 4 of stage Ⅳ. The median duration of follow-up was 76 months. There were 7 grade 2 late genito urinary toxicities, 2 grade 2 gastrointestinal toxicities, no grade 3 or higher adverse events occurred. All patients maintained normal bladder function, except for 8 cases who lost bladder function due to uncontrolled tumor in the bladder. Seventeen cases recurred locally. There were 11 cases in the concurrent chemoradiotherapy group with a local recurrence rate of 26.2% (11/42) and 6 cases in the non-concurrent chemoradiotherapy group with a local recurrence rate of 22.2% (6/27), and the difference in local recurrence rate between the two groups was not statistically significant (P=0.709). There were 23 cases of distant metastasis (including 2 cases of local recurrence with distant metastasis), including 10 cases in the concurrent chemoradiotherapy group with a distant metastasis rate of 23.8% (10/42) and 13 cases in the non-concurrent chemoradiotherapy group with a distant metastasis rate of 48.1% (13/27), and the distant metastasis rate in the non-concurrent chemoradiotherapy group was higher than that in the concurrent chemoradiotherapy group (P=0.036). The median 5-year overall survival (OS) time was 59 months and the OS rate was 47.8%. The 5-year progression-free survival (PFS) time was 20 months and the PFS rate was 34.4%. The 5-year OS rates of concurrent and non-concurrent chemoradiotherapy group were 62.9% and 27.6% (P<0.001), and 5-year PFS rates were 45.4% and 20.0%, respectively (P=0.022). The 5-year OS rates of with or without neoadjuvant chemotherapy were 78.4% and 30.1% (P=0.002), and the 5-year PFS rates were 49.1% and 25.1% (P=0.087), respectively. The 5-year OS rates with or without TURBT before radiotherapy were 45.5% and 51.9% (P=0.233) and the 5-year PFS rates were 30.8% and 39.9% (P=0.198), respectively. Multivariate Cox regression analysis results showed that the clinical stage (HR=0.422, 95% CI: 0.205-0.869) was independent prognostic factor for PFS of invasive bladder cancer. The multivariate analysis showed that clinical stages (HR=0.278, 95% CI: 0.114-0.678), concurrent chemoradiotherapy (HR=0.391, 95% CI: 0.165-0.930), neoadjuvant chemotherapy (HR=0.188, 95% CI: 0.058-0.611), and recurrences (HR=10.855, 95% CI: 3.655-32.638) were independent prognostic factors for OS of invasive bladder cancer. Conclusion: Unresectable localized invasive bladder cancer can achieve satisfactory long-term outcomes with bladder-preserving combination therapy based on radiotherapy, most patients can retain normal bladder function with acceptable late adverse effects and improved survival particularly evident in patients with early, concurrent chemoradiotherapy and neoadjuvant chemotherapy.
Humans
;
Aged
;
Treatment Outcome
;
Retrospective Studies
;
Combined Modality Therapy
;
Chemoradiotherapy/methods*
;
Urinary Bladder Neoplasms/radiotherapy*
;
Antineoplastic Combined Chemotherapy Protocols/therapeutic use*
;
Neoplasm Staging
6.Association between metabolic risk factors and the hepatitis B reactivation of inactive HBsAg carriers in Jiangsu province: a cohort study.
Jian Fang XU ; Jie JIANG ; Li YANG ; Jiao QIAN ; Han WANG ; Hai Ming CHEN ; Hong Jian LIU ; Ci SONG ; Xin XU ; Feng Cai ZHU ; Li Guo ZHU ; Xiang Jun ZHAI
Chinese Journal of Epidemiology 2022;43(8):1301-1308
Objective: To analyze the impact of metabolic risk factors on the epidemiological characteristics of the reactivation of inactive HBsAg carriers (IHC) and provide effective intervention measures to standardize the management of chronic hepatitis B infections. Methods: Based on the chronic hepatitis B infection cohort established in 2010 in Jiangsu province, six follow-up visits from 2012 to 2020 were conducted to analyze the characteristics and influencing factors of the hepatitis B reactivation of IHC and the impact of metabolic risk factors, including obesity, high blood pressure, diabetes and hyperglycemia. Results: From 2012 to 2020, 2 527 IHC and 17 730 person-years were observed during a median follow-up period of 7.0 person-years. Ninety-eight cases of hepatitis B reactivation, with a cumulative reaction rate, was 3.9%, and the incidence density was 5.53/1 000 person-years. Multivariate Cox proportional risk regression analysis showed that age and baseline HBV DNA were independent risk factors of HBV reactivation. Compared with the patients ≥60 years, 40-49 age group (aHR=2.16, 95%CI:1.20-3.90) and 20-29 age group (aHR=5.48, 95%CI:2.07-14.48) were significantly associated with hepatitis B reactivation. Compared with the HBV DNA negative patients at baseline, the risk of hepatitis B reactivation was higher in the group with low HBV DNA level 100-1 999 IU/ml (aHR=1.67, 95%CI:1.11-2.52). Stratification analysis results showed that compared with those without metabolic risk factors, in the ≥50 age group, patients with ≥2 metabolic risk factors showed adjusted HR of 2.73 (95%CI:1.08-6.96). Conclusions: The risk of hepatitis B being reactive is the persistent existence of IHC in communities in Jiangsu province, especially young adults, low-level HBV DNA carriers, and IHC with ≥2 metabolic risk factors. Follow-up for these IHC should be strengthened to reduce the risk of disease progression by antiviral treatment at the right time.
Cohort Studies
;
DNA, Viral
;
Hepatitis B/epidemiology*
;
Hepatitis B Surface Antigens
;
Hepatitis B virus/genetics*
;
Hepatitis B, Chronic/epidemiology*
;
Humans
;
Risk Factors
;
Young Adult
7.Lipid markers and targets of coronary artery disease based on lipidomics
Guan-lin YANG ; Qiong ZHAI ; Xin DONG ; Ren BU ; Pei-feng XUE ; Fang-xin ZHAO ; Jing-kun LU
Acta Pharmaceutica Sinica 2022;57(7):2003-2011
Coronary artery disease is the leading cause of death worldwide, the coronary artery stenosis or occlusion caused by atherosclerosis leads to myocardial ischemia, hypoxia, or necrosis, that is main histopathological features of coronary artery disease. Atherosclerosis relates closely to abnormal lipid regulation, chronic inflammation, and endothelial dysfunction. Cardiac enzymes and high, low-density lipoprotein are currently used to diagnose a variety of coronary artery diseases, but the evidence is inadequate. Thus, new cardioprotective therapies are required to explore sensitive molecular markers for the prediction of cardiovascular events. Lipids have an important role in maintaining the myocardial cell structure as well as cardiac function. Lipidomics is a newly emerged discipline that studies lipids on a large scale. Recent advancements in lipidomics on coronary artery disease have shown that certain lipids, such as ceramide, sphingosine, lysophosphatidic acid, oxidized lipids, and so on, are associated with the clinical classification and characteristics of coronary artery disease. In addition, recent studies of lipid profiles of the cardiac, fat, liver, and other tissue samples in animal models also have provided a novel viewpoint. Given the increasing application of lipidomics techniques for coronary artery disease, we provide a review of lipidomics technology, sensitive lipid markers, recent studies of therapeutic targets, and drug discovery for coronary artery disease.
8.Correlation of VISTA and PD-L1 expression with the clinicopathological features and prognosis in triple-negative breast cancer.
Bo Ya ZHAI ; Ye Fang YANG ; Yu Xin GONG ; Zhen Dong HUANG ; Guo Xin SONG ; Zhi Hong ZHANG
Chinese Journal of Pathology 2022;51(9):832-837
Objective: To investigate the expression of VISTA and PD-L1 in triple-negative breast cancer (TNBC) and to explore its relationship with clinicopathologic features and prognosis. Methods: Ninety TNBC patients who underwent surgical resections between 2016 to 2018 in Jiangsu Province Hospital were selected. The expression of VISTA and PD-L1 in both tumor cells and immune cells was evaluated by immunohistochemistry, and the relationship with clinicopathologic parameters and prognosis was analyzed. Results: VISTA was expressed in 17.8% (16/90) of the tumors. The expression of VISTA in tumor cells was related to a higher Ki-67 proliferation index (P=0.02) and higher number of tumor-infiltrating lymphocytes (TIL, P<0.01). VISTA was expressed in 71.1% (64/90) of the immune cells and the expression correlated with smaller tumor size (P=0.02), lower T stage (P=0.04), higher number of TIL (P<0.01), higher number of CD8+T cells (P=0.03) and higher Ki-67 proliferation index (P=0.02). PD-L1 was expressed in 17.8% (16/90) of the immune cells and the expression correlated with higher histologic grade (P=0.04), higher Ki-67 proliferation index (P=0.02) and higher number of TIL (P<0.01). VISTA expression was higher in immune cells within TNBC patients than PD-L1 (P<0.01). Among 90 TNBC patients, complete follow-up was obtained in 85 patients, 8 of whom had recurrences or metastasis after surgery, and two patients cases died of recurrences or metastasis. Conclusions: The expression rate of VISTA is higher than that of PD-L1 in TNBC. The expression of VISTA in immune cells predicts a lower T stage. VISTA may act as an effective immunotherapy target.
B7-H1 Antigen/metabolism*
;
Humans
;
Ki-67 Antigen
;
Prognosis
;
Recurrence
;
Triple Negative Breast Neoplasms/surgery*
9.ABC prognostic classification and MELD 3.0 and COSSH-ACLF Ⅱ prognostic evaluation in acute-on-chronic liver failure.
Wan Shu LIU ; Li Jun SHEN ; Hua TIAN ; Qing Hui ZHAI ; Dong Ze LI ; Fang Jiao SONG ; Shao Jie XIN ; Shao Li YOU
Chinese Journal of Hepatology 2022;30(9):976-980
Objective: To investigate the ABC prognostic classification and the updated version of Model for End-stage Liver Disease (MELD) score 3.0 and Chinese Group on the Study of Severe Hepatitis B ACLF Ⅱ score (COSSH-ACLF Ⅱ score) to evaluate the prognostic value in acute-on-chronic liver failure (ACLF). Methods: ABC classification was performed on a 1 409 follow-up cohorts. The area under the receiver operating characteristic curve (AUROC) was used to analyze MELD, MELD 3.0, COSSH-Ⅱ and COSSH-Ⅱ score after 3 days of hospitalization (COSSH-Ⅱ-3d). The prognostic predictive ability of patients were evaluated for 360 days, and the prediction differences of different classifications and different etiologies on the prognosis of ACLF were compared. Results: The survival curve of 1 409 cases with ACLF showed that the difference between class A, B, and C was statistically significant, Log Rank (Mantel-Cox) χ2=80.133, P<0.01. Compared with class A and C, χ2=76.198, P<0.01, the difference between class B and C, was not statistically significant χ2=3.717, P>0.05. AUROC [95% confidence interval (CI)] analyzed MELD, MELD 3.0, COSSH-Ⅱ and COSSH-Ⅱ-3d were 0.644, 0.655, 0.817 and 0.839, respectively (P<0.01). COSSH-Ⅱ had better prognostic predictive ability with class A ACLF and HBV-related ACLF (HBV-ACLF) for 360-days, and AUROC (95% CI) were 0.877 and 0.881, respectively (P<0.01), while MELD 3.0 prognostic predictive value was not better than MELD. Conclusion: ACLF prognosis is closely related to ABC classification. COSSH-Ⅱ score has a high predictive value for the prognostic evaluation of class A ACLF and HBV-ACLF. COSSH-Ⅱ score has a better prognostic evaluation value after 3 days of hospitalization, suggesting that attention should be paid to the treatment of ACLF in the early stage of admission.
Humans
;
Acute-On-Chronic Liver Failure
;
Prognosis
;
End Stage Liver Disease/complications*
;
Retrospective Studies
;
Severity of Illness Index
10.Expert Consensus for Thermal Ablation of Pulmonary Subsolid Nodules (2021 Edition).
Xin YE ; Weijun FAN ; Zhongmin WANG ; Junjie WANG ; Hui WANG ; Jun WANG ; Chuntang WANG ; Lizhi NIU ; Yong FANG ; Shanzhi GU ; Hui TIAN ; Baodong LIU ; Lou ZHONG ; Yiping ZHUANG ; Jiachang CHI ; Xichao SUN ; Nuo YANG ; Zhigang WEI ; Xiao LI ; Xiaoguang LI ; Yuliang LI ; Chunhai LI ; Yan LI ; Xia YANG ; Wuwei YANG ; Po YANG ; Zhengqiang YANG ; Yueyong XIAO ; Xiaoming SONG ; Kaixian ZHANG ; Shilin CHEN ; Weisheng CHEN ; Zhengyu LIN ; Dianjie LIN ; Zhiqiang MENG ; Xiaojing ZHAO ; Kaiwen HU ; Chen LIU ; Cheng LIU ; Chundong GU ; Dong XU ; Yong HUANG ; Guanghui HUANG ; Zhongmin PENG ; Liang DONG ; Lei JIANG ; Yue HAN ; Qingshi ZENG ; Yong JIN ; Guangyan LEI ; Bo ZHAI ; Hailiang LI ; Jie PAN
Chinese Journal of Lung Cancer 2021;24(5):305-322
"The Expert Group on Tumor Ablation Therapy of Chinese Medical Doctor Association, The Tumor Ablation Committee of Chinese College of Interventionalists, The Society of Tumor Ablation Therapy of Chinese Anti-Cancer Association and The Ablation Expert Committee of the Chinese Society of Clinical Oncology" have organized multidisciplinary experts to formulate the consensus for thermal ablation of pulmonary subsolid nodules or ground-glass nodule (GGN). The expert consensus reviews current literatures and provides clinical practices for thermal ablation of GGN. The main contents include: (1) clinical evaluation of GGN, (2) procedures, indications, contraindications, outcomes evaluation and related complications of thermal ablation for GGN and (3) future development directions.
.

Result Analysis
Print
Save
E-mail