1.FBXO43 expression in pan-cancer and its relationship with immune cell infiltration and prognosis
Songhua LIU ; Yao RONG ; Mingzheng TANG ; Yunyang CHEN ; Pengfei LI ; Xiaojun YANG
Journal of China Medical University 2024;53(9):834-844
Objective To investigate the expression of FBXO43in various cancers and its relationship with immune cell infiltration and prognosis using bioinformatics.Methods Gene expression data for 33 cancers were obtained from The Cancer Genome Atlas(TCGA)and Genotype-Tissue Expression(GTEx)databases to analyze FBXO43expression.Clinical and survival data were sourced from the TCGA database.Gene Expression Profiling Interactive Analysis(GEPIA)was used to assess the correlation between FBXO43expression and the clinical stage.Kaplan-Meier survival analysis was used to evaluate the relationship between FBXO43expression and prognosis.R lan-guage was used to analyze the associations between FBXO43expression and clinical stages,immune cell infiltration,immune checkpoint genes,tumor mutation burden(TMB),microsatellite instability(MSI),and mismatch repair(MMR)genes.The potential biological mech-anisms of FBXO43were explored using gene set enrichment analysis(GSEA).Moreover,qRT-PCR was performed to measure FBXO43 expression in normal gastric mucosal cells(GES-1),gastric cancer cells(HGC-27,MGC-803,and MKN-45),normal liver cells(LO-2),and liver cancer cells(SMMC-7721,HEPG2,HuH7,and MHCC97-H).Results Combined TCGA and GTEx database statistics revealed higher FBXO43expression in 26 types of cancer tissues,including adrenocortical carcinoma(ACC),bladder urothelial carcinoma,breast invasive carcinoma,cervical squamous cell carcinoma and endocervical adenocarcinoma,cholangiocarcinoma,colon adenocarcinoma,and diffuse large B-cell lymphoma,than in normal tissues(P<0.05).However,FBXO43expression was lower in three types of cancer tissues:kidney chromophobe(KICH),testicular germ cell tumor(TGCT),and thyroid carcinoma(P<0.05).GEPIA data analysis showed that FBXO43expression positively correlated with the clinical stages of ACC,KICH,kidney renal clear cell carcinoma(KIRC),and kidney renal papillary cell carcinoma(KIRP)and negatively correlated with the clinical stages of ovarian serous cystadenocarcinoma(OV)and TGCT(P<0.05).Kaplan-Meier survival analysis indicated that abnormal FBXO43expression was associated with the prognosis of various cancers(P<0.05).Specifically,high FBXO43expression was a risk factor for ACC,KICH,KIRC,KIRP,low-grade glioma,liver hepato-cellular carcinoma,mesothelioma,and sarcoma,but protective in thymoma(THYM).The XCELL algorithm found that FBXO43expres-sion was negatively correlated with immune scores in nine types of cancer tissues,including glioblastoma multiforme,KIRP,acute myeloid leukemia,lung squamous cell carcinoma,and OV,and closely related to immune cell infiltration levels in 24 types of cancer tissues,espe-cially showing a significant negative correlation with most immune cells in SARC(P<0.01).Correlation analysis revealed a significant association between FBXO43and TMB,MSI,and MMR in all cancers.GSEA analysis indicated that FBXO43is involved in the cell cycle and immune-related functions in various tumors.qRT-PCR results showed that FBXO43expression was upregulated in liver cancer cells and downregulated in gastric cancer cells(all P<0.05).Conclusion Abnormal FBXO43expression is closely associated with the occur-rence and progression of multiple cancers.Thus,FBXO43may serve as a novel marker of immune cell infiltration and prognosis,thereby offering new directions for targeted cancer therapy.
2.Mineralocorticoid receptor antagonist finerenone in DKD: From molecular structure to the cardio-renal protective mechanism
Ruolin LYU ; Lili XU ; Yunyang WANG ; Song LIU ; Zhongchao WANG ; Wenshan LYU ; Yangang WANG ; Bingzi DONG
Chinese Journal of Endocrinology and Metabolism 2024;40(7):608-613
Mineralocorticoid receptor(MR) overactivation plays an important role in the development and progression of diabetic kidney disease(DKD) by mediating pro-inflammatory and pro-fibrotic processes, making it a key therapeutic target for DKD. Finerenone, a third-generation, highly selective, novel nonsteroidal mineralocorticoid receptor antagonist(MRA), mitigates MR overactivation through anti-inflammatory and anti-fibrotic effects and by improving the immune-inflammatory environment. This significantly reduces cardiovascular and renal composite endpoints in patients with type 2 diabetes mellitus(T2DM) and chronic kidney disease(CKD), and improve cardiorenal outcomes. Based on its novel molecular structure, Finerenone exhibits a lower incidence of adverse effects compared to the previous MRAs. This article elucidates the molecular structure and pathophysiological role of MR, and explores the molecular mechanisms through which finerenone provides cardiorenal benefits. It also discusses the advantages and safety of finerenone compared to first- and second-generation MRAs from a molecular structure perspective, providing evidence for its clinical application.
3.Effect of tRF-1:30 on the expression of inflammatory factors in renal tubular epithelial cells induced by high glucose
Yuwei XIA ; Yunyang QIAO ; Xuewei LIU ; Huimin SHI ; Gaoting QU ; Aiqing ZHANG ; Weihua GAN
Tianjin Medical Journal 2024;52(6):561-566
Objective To investigate the effect and molecular mechanism of tRF-1:30-Gln-CTG-4(tRF-1:30)on the expression of inflammatory factors in high glucose(HG)-induced renal tubular epithelial cells(RTECs).Methods RTECs were divided into the control group,the HG group,the HG+tRF-1:30 mimic group,the HG+tRF-1:30 negative control(NC)group,the HG+si-IKZF2 group and the HG+si-NC group.Real-time quantitative polymerase chain reaction(RT-qPCR)was used to detect the expression levels of tRF-1:30,tumor necrosis factor-α(TNF-α),interleukin-6(IL-6),monocyte chemoattractant protein-1(MCP-1)and IKAROS family zinc finger protein 2(IKZF2).Enzyme-linked immunosorbent assay(ELISA)was used to detect levels of TNF-α,IL-6 and MCP-1.Protein expression of IKZF2 was detected by Western blot assay.Dual-luciferase reporter assay was used to detect the targeting relationship between tRF-1:30 and IKZF2.Results The expression levels of inflammatory factors were elevated in HG-induced RTECs,and the expression level of tRF-1:30 was decreased(P<0.05).Overexpression of tRF-1:30 significantly decreased expression levels of inflammatory factors in HG-induced RTECs(P<0.05),and the expression level of IKZF2 was significantly increased(P<0.05).Further knockdown of IKZF2 can inhibit the release of inflammatory factors,and the expression level of IKZF2 was down-regulated after overexpression of tRF-1:30.Double luciferase reporting experiment further verified the possible targeting relationship between tRF-1:30 and IKZF2.Conclusion Overexpression of tRF-1:30 inhibits the expression of inflammatory factors in HG-induced RTECs by target binding and negatively regulating the expression of IKZF2.
4.Bionic design,preparation and clinical translation of oral hard tissue restorative materials
Han ZHAO ; Yan WEI ; Xuehui ZHANG ; Xiaoping YANG ; Qing CAI ; Chengyun NING ; Mingming XU ; Wenwen LIU ; Ying HUANG ; Ying HE ; Yaru GUO ; Shengjie JIANG ; Yunyang BAI ; Yujia WU ; Yusi GUO ; Xiaona ZHENG ; Wenjing LI ; Xuliang DENG
Journal of Peking University(Health Sciences) 2024;56(1):4-8
Oral diseases concern almost every individual and are a serious health risk to the popula-tion.The restorative treatment of tooth and jaw defects is an important means to achieve oral function and support the appearance of the contour.Based on the principle of"learning from the nature",Deng Xu-liang's group of Peking University School and Hospital of Stomatology has proposed a new concept of"microstructural biomimetic design and tissue adaptation of tooth/jaw materials"to address the worldwide problems of difficulty in treating dentine hypersensitivity,poor prognosis of restoration of tooth defects,and vertical bone augmentation of alveolar bone after tooth loss.The group has broken through the bottle-neck of multi-stage biomimetic technology from the design of microscopic features to the enhancement of macroscopic effects,and invented key technologies such as crystalline/amorphous multi-level assembly,ion-transportation blocking,and multi-physical properties of the micro-environment reconstruction,etc.The group also pioneered the cationic-hydrogel desensitizer,digital stump and core integrated restora-tions,and developed new crown and bridge restorative materials,gradient functionalisation guided tissue regeneration membrane,and electrically responsive alveolar bone augmentation restorative membranes,etc.These products have established new clinical strategies for tooth/jaw defect repair and achieved inno-vative results.In conclusion,the research results of our group have strongly supported the theoretical im-provement of stomatology,developed the technical system of oral hard tissue restoration,innovated the clinical treatment strategy,and led the progress of the stomatology industry.
5.Steroid and triterpenoid saponins from the rhizomes of Paris polyphylla var. stenophylla.
Jinming HU ; Yunyang LU ; Shuxian ZHENG ; Yunyuan TIAN ; Tianyi LI ; Haifeng TANG ; Zhao YANG ; Yang LIU
Chinese Journal of Natural Medicines (English Ed.) 2023;21(10):789-800
Five new saponins, including three steroid saponins, paristenoids A-C (1-3), and two triterpenoid saponins, paristenoids D-E (4-5), along with four known ones (6-9) were isolated from the rhizomes of Paris polyphylla var. stenophylla. The structures of the isolated compounds were identified mainly by detailed spectroscopic analysis, including extensive 1D and 2D NMR, MS, as well as chemical methods. Compound 3 is a new cyclocholestanol-type steroidal saponin with a rare 6/6/6/5/5 fused-rings cholestanol skeleton, and this skeleton has been first found from the genus Paris. The cytotoxicities of the isolated compounds against three human three glioma cell lines (U87MG, U251MG and SHG44) were evaluated, and compound 7 displayed certain inhibitory effect with IC50 values of 15.22 ± 1.73, 18.87 ± 1.81 and 17.64 ± 1.69 μmol·L-1, respectively.
Humans
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Rhizome/chemistry*
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Steroids/chemistry*
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Liliaceae/chemistry*
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Saponins/chemistry*
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Triterpenes/analysis*
6.Advances of Kunitz-type serine protease inhibitors.
Yunyang LIU ; Shuai JIANG ; Qian LI ; Yi KONG
Chinese Journal of Biotechnology 2021;37(11):3988-4000
Kunitz-type serine protease inhibitors are a class of ubiquitous protease inhibitors, which play important roles in various life activities. The structures of such inhibitors are generally stable, and are usually characterized by the presence of one or several Kunitz domains in tandem, which are able to bind to serine proteases in a manner similar to substrate binding, thereby inhibiting enzyme activity. In terms of function, Kunitz-type serine protease inhibitors are involved in processes such as blood coagulation and fibrinolysis, tumor immunity, inflammation regulation, and resistance to bacterial and fungal infections. This article summarizes the advances of Kunitz-type serine protease inhibitors and provides new ideas for the development of novel Kunitz-type serine protease inhibitors.
Protease Inhibitors
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Serine Proteases
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Serine Proteinase Inhibitors
7.Excavation and Analysis of ADR Signals of Fluconazole ,Ketoconazole,Itraconazole and Voriconazole after Marketing
Hailin LIU ; Hongmei YUAN ; Hu WANG ; Junlin DIAO ; Chunqiao ZHOU ; Xiaoli DING ; Xuelin ZHANG ; Zhi DONG ; Song WANG
China Pharmacy 2020;31(9):1118-1123
OBJECTIVE:To excavate the safety warning signals induced by azole antifungal agents ,including fluconazole , ketoconazole,itraconazole and voriconazole after marketing ,and to provide references for rational drug use in the clinic. METHODS:Reporting odds ratio (ROR)data mining algorithm was used to investigate signals of adverse drug event (ADE)for fluconazole,ketoconazole,itraconazole and voriconazole from FDA Adverse Event Reporting System (FAERS)during January 1st,2004 to March 30th,2019. ROR data mining method was used to excavate the ADR signals of the drugs ,and main ADR involved in the safety information of azole antifungal agents instructions were analyzed. RESULTS :A total of 27 831,5 712, 5 381 and 11 333 reports were picked out for fluconazole ,ketoconazole,itraconazole and voriconazole ,respectively. All of these drugs had exhibited high-risk signals detection by ROR ,including medical examination ,blood and lymphatic system disorders , renal and urinary disorders ,endocrine diseases ,hepatobiliary disorders. The hepatotoxic-related ADR signals were mainly concentrated in fluconazole and voriconazole (fluconazole ROR =6.51,voriconazole ROR =14.65);ADR detection results of Cushing’s-like syndrome (ROR=24.86) and adrenal suppression (ROR=44.06) by itraconazole showed high-risk signals ; ketoconazole and itraconazole had showed a strong ADR signal in adrenocortical dysfunction (ketoconazole ROR =15.64, itraconazole ROR =23.26),and the signal intensity of ketoconazole (ROR=2.81)in skin and subcutaneous tissue disorders was significantly higher than that of other drugs . In addition ,hemorrhagic cystitis caused by fluconazole,itraconazole and voriconazole were not included in the drug instructions (fluconazole ROR =17.73,itraconazole ROR =31.43,voriconazole ROR =17.06); netted green spot caused by fluconazole (ROR=10.50)were not included in the drug instructions . CONCLUSIONS:Clinical staff should pay more attention to the differences in serious ADR related to fluconazole ,ketoconazole,itraconazole and voriconazole ; particularly some ADRs not mentioned in the drug instructions but have high incidence such as hemorrhagic cystitis caused by fluconazole,itraconazole,voriconazole and netted green spot caused by fluconazole ,as well as ADRs mentioned in the drug instructions but have abnormally high signal ,such as Cushing ’s-like syndrome and adrenal suppression caused by itraconazole .
8. Clinical study on the treatment of lumbar hyperosteogenywith Tenghuang-Jiangu tablet and osteopeptide injection
Qin LIU ; Ning LI ; Yanxia ZHU
International Journal of Traditional Chinese Medicine 2019;41(10):1071-1074
Objective:
To evaluate the efficacy of
9.Value of percutaneous transhepatic choledochoscopic lithotripsy in treatment of hepatolithiasis
Xinwen LIU ; Yao CHENG ; Jianping GONG
Journal of Clinical Hepatology 2019;35(7):1640-1643
Hepatolithiasis is a common benign biliary disease in China. It is a challenge to treat hepatolithiasis. Some patients with complicated hepatolithiasis fail to achieve satisfactory outcomes after several biliary operations, and therefore, how to improve the treatment outcome of hepatolithiasis is a major problem for biliary surgeons. At present, surgery is still the main treatment method for hepatolithiasis. Percutaneous transhepatic choledochoscopic lithotripsy (PTCSL), as a minimally invasive surgical treatment for hepatolithiasis, has been accepted by many biliary surgeons and patients with hepatolithiasis and gradually gains a place in the treatment of hepatolithiasis. This article reviews the research advances in PTCSL in the treatment of hepatolithiasis.
10.Mechanism of granulocyte colony-stimulating factor for promoting cell viability of bone marrow mesenchymal stem cells..
Long CHEN ; Fan-Jun CHENG ; Qi-Huan LIU ; Jun-Ming TANG ; Qin-Bing ZENG ; Xia KONG ; Ling-Yun GUO ; Jia-Ning WANG
Acta Physiologica Sinica 2009;61(2):169-174
The present study was aimed to investigate the mechanism of the granulocyte colony-stimulating factor (G-CSF) on the viability of the bone marrow mesenchymal stem cells (MSCs). MSCs were cultured by classical whole bone marrow adhering method, and the MSCs were analyzed for the cell surface differentiation markers CD34, CD133, CD90 and CD105 by flow cytometry (FCM). The ability of the MSCs to differentiate into osteocytes and adipocytes was tested in osteogenic and adipogenic mediums, separately. The effect of G-CSF (20 mug/mL) on the passage 3 MSCs viability was evaluated by MTT method, and the molecular mechanism of the G-CSF mediated effects was assayed through the pretreatment of the signal pathway inhibitors including 50 nmol/L wortmannin (phosphatidylinoesitol 3 kinase inhibitor), 50 mumol/L PD98059 [extracellular signal-regulated-kinase1/2 (ERK1/2) inhibitor], 30 mumol/L SB203580 (p38 mitogen-activated protein kinase inhibitor), 10 mumol/L H89 (protein kinase A inhibitor), 20 mumol/L Y27632 (Rho kinase inhibitor), 1 mumol/L rapamycin [mammalian target of rapamycin (mTOR) inhibitor], 10 mmol/L straurosporine [protein kinase C (PKC) inhibitor], 6 nmol/L G0697 (PKCalpha inhibitor) and 50 mumol/L Pseudo Z (PKCzeta inhibitor). Cultured passage 3 MSCs expressed CD90 and CD105 strongly, and showed the ability of multi-differentiation into osteocytes and adipocytes. G-CSF promoted the viability of MSCs, and the promotion was completely inhibited by PKC inhibitor straurosporine and partially inhibited by wortmannin, rapamycin, PD98059, SB203580 or G0697. However, its effect was not inhibited by H89, Y27632 and Pseudo Z. It is thus suggested that the promoting effect of G-CSF on MSCs viability was closely related to AKT-mTOR-PKC signal pathway, and PKC maybe the central role in the signal pathway.
Animals
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Bone Marrow Cells
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cytology
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Cell Differentiation
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Cell Survival
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Cells, Cultured
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Enzyme Inhibitors
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pharmacology
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Granulocyte Colony-Stimulating Factor
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pharmacology
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Hematopoietic Stem Cells
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Humans
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Mesenchymal Stromal Cells
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cytology
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Signal Transduction

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