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Piezo1 channel exaggerates ferroptosis of nucleus pulposus cells by mediating mechanical stress-induced iron influx

Bone Research 2024年第2期12卷 334-348页

作者： Ziqian Xiang Pengfei Zhang Chunwang Jia Rongkun Xu Dingren Cao Zhaoning Xu Tingting Lu Jingwei Liu Xiaoxiong Wang Cheng Qiu Wenyang Fu Weiwei Li Lei Cheng Qiang Yang Shiqing Feng Lianlei Wang Yunpeng Zhao Xinyu Liu department of Orthopaedics Qilu Hospital of Shandong UniversityJinan 250012China University of Health and Rehabilitation Sciences Qingdao 226000China Xiangya School of Medicine Central South UniversityChangsha 410013China School of Nursing and Rehabilitation Shandong UniversityJinan 250012China department of Pediatrics Cangzhou Central HospitalCangzhou 061011China department of Pediatric Surgery Qilu Hospital of Shandong UniversityJinan 250012China department of pathology Qilu Hospital of Shandong UniversityJinan 250012China department of Spine Surgery Tianjin HospitalTianjin UniversityTianjin 30021China The Second hospital of shandong University Cheeloo College of MedicineShandong UniversityJinan 250012China

To date,several molecules have been found to facilitate iron influx,while the types of iron influx channels remain to be ***,Piezo1 channel was identified as a key iron transporter in response to mechanical ***1-mediated iron overload disturbed iron metabolism and exaggerated ferroptosis in nucleus pulposus cells(NPCs).Importantly,Piezo1-induced iron influx was independent of the transferrin receptor(TFRC),a well-recognized iron ***,pharmacological inactivation of Piezo1 profoundly reduced iron accumulation,alleviated mitochondrial ROS,and suppressed ferroptotic alterations in stimulation of mechanical ***,conditional knockout of Piezo1(Col2a1-CreERT Piezo1^(flox/flox))attenuated the mechanical injury-induced intervertebral disc degeneration(IVDD).Notably,the protective effect of Piezo1 deficiency in IVDD was dampened in Piezo1/Gpx4 conditional double knockout(cDKO)mice(Col2a1-CreERT Piezo1^(flox/flox)/Gpx4^(flox/flox)).These findings suggest that Piezo1 is a potential determinant of iron influx,indicating that the Piezo1-iron-ferroptosis axis might shed light on the treatment of mechanical stress-induced diseases.

关键词： stress overload channel

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Intestinal malrotation complicated with gastric cancer: A case report

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World Journal of Clinical Cases 2024年第1期12卷 210-216页

作者： Xiang-Hao Jia Shuai Kong Xin-Xin Gao Bi-Cong Cong Chun-Ning Zheng School of Clinical Medicine Weifang Medical UniversityWeifang 261053Shandong ProvinceChina department of Gastrointestinal Surgery Provincial Hospital Affiliated to Shandong First Medical UniversityJinan 250000Shandong ProvinceChina

BACKGROUND Intestinal malrotation is a congenital defect of embryonic development caused by various teratogenic *** this condition,the intestinal tube,along with the superior mesenteric artery serving as the axis for the counterclockwise movement,is incomplete or abnormally rotated due to incomplete attachment of the mesentery and abnormal intestinal tube *** a case is usually asymp-tomatic and thus difficult to ***,similar variant malformations are only found during an operation required for other abdominal *** SUMMARY An elderly male patient was admitted to the hospital due to gastric *** abdominal computed tomography(CT)scan with contrast revealed that the ascending and descending colon were parallel on the right side of the abdominal cavity,while the sigmoid colon extended into the right iliac fossa,allowing the diagnosis of congenital midgut *** thorough preoperative preparation,the patient underwent laparoscopic radical gastrectomy to treat his gastric ***,an exploration of the abdominal cavity uncovered the absence of the transverse *** distal colon at the hepatic flexure,along with the ascending colon,extended into the right iliac fossa,where it continued as the sigmoid *** planned,the laparoscopic radical gastrectomy was perform-ed,and the patient was discharged from the hospital 7 d after the *** Asymptomatic intestinal malrotation is best detected by CT,requiring no treatment but possibly interfering with the treatment of other diseases.

关键词： Intestinal malrotation Congenital malformation Gastric cancer Abdominal

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Computed tomography-based radiomics combined with machine learning allows differentiation between primary intestinal lymphoma and Crohn's disease

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World Journal of Gastroenterology 2024年第25期30卷 3155-3165页

作者： Meng-Jun Xiao Yu-Teng Pan Jia-He Tan Hai-Ou Li Hai-Yan Wang department of Radiology Shandong Provincial Hospital Affiliated to Shandong First Medical UniversityJinan 250021Shandong ProvinceChina Medical Science and Technology Innovation Center Shandong First Medical University&Shandong Academy of Medical SciencesJinan 250000Shandong ProvinceChina University of California DavisCA 95616United States Qilu hospital Cheeloo College of MedicineShandong UniversityJinan 250012Shandong ProvinceChina

BACKGROUND Due to similar clinical manifestations and imaging signs,differential diagnosis of primary intestinal lymphoma(PIL)and Crohn's disease(CD)is a challenge in clinical *** To investigate the ability of radiomics combined with machine learning methods to differentiate PIL from *** We collected contrast-enhanced computed tomography(CECT)and clinical data from 120 patients form center 1.A total of 944 features were extracted singlephase images of CECT *** the last absolute shrinkage and selection operator model,the best predictive radiographic features and clinical indications were *** from 54 patients were collected at center 2 as an external validation set to verify the robustness of the *** area under the receiver operating characteristic curve,accuracy,sensitivity and specificity were used for *** A total of five machine learning models were built to distinguish PIL from *** on the results from the test group,most models performed well with a large area under the curve(AUC)(>0.850)and high accuracy(>0.900).The combined clinical and radiomics model(AUC=1.000,accuracy=1.000)was the best model among all *** Based on machine learning,a model combining clinical data with radiologic features was constructed that can effectively differentiate PIL from CD.

关键词： Primary intestinal lymphoma Crohn's disease Radiomics Machine learning Diagnosis

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Impact of Alcian blue and periodic acid Schiff expression on the prognosis of gastric signet ring cell carcinoma

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World Journal of Gastrointestinal Oncology 2024年第3期16卷 687-698页

作者： Juan Lin Zhu-Feng Chen Guo-Dong Guo Xin Chen Shengli Clinical Medical College Fujian Medical UniversityFuzhou 350001Fujian ProvinceChina department of pathology Fujian Provincial HospitalFuzhou 350001Fujian ProvinceChina department of Internal Medicine Fujian Provincial HospitalFuzhou 350001Fujian ProvinceChina

BACKGROUND The Alcian blue(AB)and periodic acid Schiff(PAS)stains are representative mucus markers in gastric signet ring cell carcinoma(SRCC).They are low-cost special staining methods used to detect acidic mucus and neutral mucus,***,the clinical importance of the special combined AB and PAS stain is *** To investigate AB expression,PAS expression and the AB-to-PAS(A/P)ratio in gastric SRCC patients and to assess patient *** Paraffin-embedded sections from 83 patients with gastric SRCC were stained with AB and PAS,and signet ring cell positivity was assessed ***-histochemical staining for Ki67,protein 53(P53)and human epidermal growth factor receptor 2(HER2)was performed *** cancer-specific survival(CSS)rate was estimated via Kaplan-Meier *** proportional hazards models were used for univariate and multivariate survival *** Kaplan-Meier survival analysis revealed that the 3-year CSS rate was significantly greater in the high-PAS-expression subgroup than in the low-PAS-expression subgroup(P0.5 group(P=0.042).Univariate Cox regression analysis revealed that the factors affecting prognosis included tumor diameter,lymph node metastasis,vessel carcinoma embolus,tumor stage,the A/P ratio and the expression of Ki67,P53 and the *** multivariate regression analysis confirmed that low PAS expression[hazard ratio(HR)=3.809,95%confidence interval(CI):1.563-9.283,P=0.003]and large tumor diameter(HR=2.761,95%CI:1.086-7.020,P=0.033)were independent risk factors for poor *** A/P>0.5 is potentially a risk factor for prognosis,and low PAS expression is an independent risk factor in the prognosis of gastric *** expression and the A/P ratio could help in predicting the clinical prognosis of patients with SRCC.

关键词： Alcian blue Periodic acid-Schiff Prognosis Gastric Signet ring cell carcinoma

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Percutaneous transhepatic cholangioscopy-assisted biliary polypectomy for local palliative treatment of intraductal papillary neoplasm of the bile duct

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World Journal of Gastrointestinal Oncology 2024年第5期16卷 1821-1832页

作者： Xu Ren Yong-Ping Qu Chun-Lan Zhu Xiao-Hong Xu Hong Jiang Yi-Xia Lu Hong-Peng Xue Digestive Disease hospital of Heilongjiang provincial hospital Heilongjiang Provincial Clinical Medical Research Center for Minimally Invasive Diagnosis and Treatment of Pancreaticobiliary DiseasesHarbin 150001Heilongjiang ProvinceChina Digestive Endoscopy Center of Heilongjiang provincial hospital Heilongjiang Provincial Clinical Medical Research Center for Minimally Invasive Diagnosis and Treatment of Pancreaticobiliary DiseasesHarbin 150001Heilongjiang ProvinceChina Second department of Gastroenterology Digestive Disease Hospital of Heilongjiang Provincial Hospitaland Heilongjiang Provincial Clinical Medical Research Center for Minimally Invasive Diagnosis and Treatment of Pancreaticobiliary DiseasesHarbin 150001Heilongjiang ProvinceChina department of pathology Heilongjiang Provincial HospitalHarbin 150001Heilongjiang ProvinceChina

BACKGROUND Intraductal papillary neoplasm of the bile duct(IPNB)is a premalignant biliarytype epithelial neoplasm with intraductal papillary or villous *** reported local palliative therapeutic modalities,including endoscopic nasobiliary drainage,stenting and biliary curettage,endoscopic biliary polypectomy,percutaneous biliary drainage,laser ablation,argon plasma coagulation,photodynamic therapy,and radiofrequency ablation to relieve mechanical obstruction are limited with weaknesses and *** have applied percutaneous transhepatic cholangioscopy(PTCS)-assisted biliary polypectomy(PTCS-BP)technique for the management of IPNB including mucin-hypersecreting cast-like and polypoid type tumors since *** To assess the technical feasibility,efficacy,and safety of PTCS-BP for local palliative treatment of *** Patients with mucin-hypersecreting cast-like or polypoid type IPNB and receiving PTCS-BP between September 2010 and December 2019 were ***-BP was performed by using a half-moon type snare with a soft stainless-steel wire,and the tumor was snared and resected with *** primary outcome was its feasibility,indicated by technical *** secondary outcomes were efficacy,including therapeutic success,curative resection,and clinical success,and *** Five patients(four with mucin-hypersecreting cast-like type and one with polypoid type IPNB)were ***-and high-grade intraepithelial neoplasia(HGIN)and recurrent IPNB with invasive carcinoma were observed in one,two,and two patients,*** cholangitis and/or obstructive jaundice were presented in all four patients with mucin-hypersecreting cast-like type *** five patients achieved technical success of *** patients(three with mucin-hypersecreting cast-like type and one with polypoid type IPNB)obtained therapeutic success;one with mucin-hypersecreting cast-like type tumors in the intrahepatic small bile duct and HGIN h

关键词： Intraductal papillary neoplasm of the bile duct Percutaneous transhepatic cholangioscopy Biliary polypectomy Feasibility Efficacy

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In Situ Raman Monitoring of Trace Antibiotics in Different Harsh Water Environments

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Energy & Environmental Materials 2024年第1期7卷 284-293页

作者： Chundong Liu Fengcai Lei Maogang Gong Xiaoming Zhou Xiaofei Zhao Zhen Li Chao Zhang Baoyuan Man Jing Yu School of Physics and Electronics Institute of Materials and Clean EnergyShandong Normal UniversityJinan 250014China College of Chemistry Chemical Engineering and Materials ScienceInstitute of Biomedical SciencesShandong Normal UniversityJinan 250014China department of Physics and Astronomy University of KansasLawrenceKansas 66045USA shandong provincial hospital Shandong First Medical UniversityJinan 250021China

In situ surface-enhanced Raman scattering(SERS)is a widely used operando analytical technique,while facing numerous complex factors in applications under aqueous environment,such as low detection sensitivity,poor anti-interference capability,etc.,resulting in unreliable *** address these issues,herein a new hydrophobic SERS strategy has been *** comprehensively designing and researching a SERS-active structure of superhydrophobic ZnO/Ag nanowires,we demonstrate that hydrophobicity can not only draw analytes from water onto substrate,but also adjust"hottest spot"from the bottom of the nanowires to the *** a result,the structure can simultaneously concentrate the dispersed molecules in water and the enhanced electric field in structure into a same zone,while perfecting its own anti-interference *** underwater in situ analytical enhancement factor of this platform is as high as 1.67×10^(11),and the operando limited of detection for metronidazole(MNZ)reaches to 10^(-9)*** importantly,we also successfully generalized this structure to various real in situ detection scenarios,including on-site detection of MNZ in corrosive urine,real-time warning of wrong dose of MNZ during intravenous therapy,in situ monitoring of MNZ in flowing wastewater with particulate interference,etc.,demonstrating the great application potential of this hydrophobic *** work realizes a synergistic promotion for in situ SERS performance under aqueous environment,and also provides a novel view for improving other in situ analytical techniques.

关键词： antibiotic detection hydrophobic structure In situ Raman metronidazole wettability

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Analysis of vascular thrombus and clinicopathological factors in prognosis of gastric cancer:A retrospective cohort study

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World Journal of Gastrointestinal Oncology 2024年第8期16卷 3436-3444页

作者： Guo-Yue Chen Ping Ren Zhen Gao Hao-Ming Yang Yan Jiao department of Radiology Jinan Central HospitalJinan 250013Shandong ProvinceChina department of Gastrointestinal Surgery Jiangsu Provincial People's HospitalNanjing 210029Jiangsu ProvinceChina

BACKGROUND Gastric cancer(GC)is one of the most common malignant tumors in the world,and its prognosis is closely related to many *** recent years,the incidence of vascular thrombosis in patients with GC has gradually attracted increasing attention,and studies have shown that it may have a significant impact on the survival rate and prognosis of ***,the specific mechanism underlying the association between vascular thrombosis and the prognosis of patients with GC remains *** To analyze the relationships between vascular cancer support and other clinicopathological factors and their influence on the prognosis of patients with *** This study retrospectively analyzed the clinicopathological data of 621 patients with GC and divided them into a positive group and a negative group according to the presence or absence of a vascular *** difference in the 5-year cumulative survival rate between the two groups was compared,and the relationships between vascular cancer thrombus and other clinicopathological factors and their influence on the prognosis of patients with GC were *** Among 621 patients with GC,the incidence of vascular thrombi was 31.7%(197 patients).Binary logistic regression analysis revealed that the degree of tumor differentiation,depth of invasion,and extent of lymph node metastasis were independent influencing factors for the occurrence of vascular thrombi in GC patients(P<0.01).The trend of the χ^(2) test showed that the degree of differentiation,depth of invasion,and extent of lymph node metastasis were linearly correlated with the percentage of vascular thrombi in GC patients(P<0.01),and the correlation between lymph node metastasis and vascular thrombi was more significant(r=0.387).Univariate analysis revealed that the 5-year cumulative survival rate of the positive group was significantly lower than that of the negative group(46.7%vs 73.3%,P<0.01).Multivariate analysis revealed that age,tumor diam

关键词： Vascular cancer thrombus Gastric cancer Survival prognosis TNM staging Retrospective study

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Adenylate cyclase activates the cAMP signalling pathway to enhance platelet-rich plasma-treated Achilles tendon disease,a theoretical bioinformatics-based study

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World Journal of Orthopedics 2024年第2期15卷 192-200页

作者： Jing-Yi Sun Cai Li Feng-Ying Du College of Basic Medical Science Qilu Medical UniversityZibo 255300Shandong ProvinceChina department of Gastroenterological Surgery Shandong Provincial Hospital of Shandong First Medical UniversityJinan 250021Shandong ProvinceChina

The effectiveness of platelet-rich plasma(PRP)for the treatment of Achilles tendon disorders still needs to be evaluated through a series of prospective studies,but genomic analysis can reveal the existence of complementary PRP treatment *** on the 96 platelet activation-related genes in the Kyoto Encyclopedia of Genes and Genomes(KEGG)database,we performed Gene Ontology functional enrichment analysis and KEGG enrichment analysis,pathway correlation analysis,and enrichment mapping to determine the enrichment results of the gene set enrichment analysis and found that the cAMP signalling pathway may be the key to enhancing the effectiveness of PRP *** cAMP signalling pathway interacts with the Rap1 signalling pathway and cGMPPKG signalling pathway to mediate the entire pathophy-siological process of Achilles tendon ***,ADCY1-9 may be the key to the activation of the cAMP signalling *** based on the data in the Gene Expression Omnibus database,it was found that ADCY4 and ADCY7 may be the players that play a major role,associated with the STAT4-ADCY4-LAMA5 axis and the GRbeta-ADCY7-SEMA3C axis,which is expected to be a complementary target for enhancing the efficacy of PRP in the treatment of Achilles tendon disease.

关键词： Platelet-rich plasma Achilles tendon disease cAMP Adenylate cyclase Complementary target

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Real-world data on ALK rearrangement test in Chinese advanced non-small cell lung cancer(RATICAL):a nationwide multicenter retrospective study

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Cancer Communications 2024年第9期44卷 992-1004页

作者： Lin Li Wencai Li ChunyanWu Yanfeng Xi Lei Guo Yuan Ji Lili Jiang Ji Li Jingping Yun Gang Chen Yuan Li Yueping Liu DianbinMu Yuchen Han Leina Sun Qingxin Xia Xiaodong Teng Nanying Che WeiWu Xueshan Qiu Chao Liu Xiaochu Yan Daiqiang Li Zhihong Zhang ZheWang Yujun Li ZhengWang Lingchuan Guo Xiu Nie Jingshu Geng Jianhua Zhou Jianming Ying department of pathology National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking UnionMedical CollegeBeijingP.R.China department of pathology the First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenanP.R.China department of pathology Shanghai Pulmonary HospitalSchool of MedicineTongji UniversityShanghaiP.R.China department of pathology Cancer Hospital Affiliated to Shanxi Medical UniversityShanxi Province Cancer HospitalShanxi Hospital Affiliated to Cancer HospitalChinese Academy of Medical SciencesTaiyuanShanxiP.R.China department of pathology Zhongshan HospitalFudan UniversityShanghaiP.R.China department of pathology West China Hospital of Sichuan UniversityChengduSichuanP.R.China department of pathology Peking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingP.R.China department of pathology Sun Yat-sen University Cancer CenterState Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouGuangdongP.R.China department of pathology Fujian Cancer HospitalFujian Medical University Cancer HospitalFuzhouFujianP.R.China department of pathology Department of OncologyFudan University Cancer CenterShanghaiMedical College of Fudan UniversityShanghaiP.R.China department of pathology The Fourth Hospital of Hebei Medical UniversityShijiazhuangHebeiP.R.China department of pathology Shandong Cancer HospitalJinanShandongP.R.China department of pathology Shanghai Chest HospitalShanghai Jiao Tong UniversityShanghaiP.R.China department of pathology Tianjin Medical University Cancer Institute and HospitalTianjinP.R.China department of pathology the Affiliated Cancer Hospital of Zhengzhou UniversityHenan Provincial Cancer HospitalZhengzhouHenanP.R.China department of pathology the First Affiliated HospitalCollege of MedicineZhejiang UniversityHangzhouZhejiangP.R.China department of pathology Bei

Background:Anaplastic lymphoma kinase(ALK)test in advanced non-small cell lung cancer(NSCLC)can help physicians provide target therapies for patients harboring ALK gene *** study aimed to investigate the real-world test patterns and positive rates of ALK gene rearrangements in advanced ***:In this real-world study(ChiCTR2000030266),patientswith advanced NSCLC who underwent an ALK rearrangement test in 30 medical centers in China between October 1,2018 and December 31,2019 were retrospectively *** training was conducted before the study was *** controls were performed at participating centers using immunohistochemistry(IHC)-*** positive ALK gene rearrangement rate and consistency rate were *** associated clinicopathological characteristics of ALK gene rearrangement were investigated as ***:The overall ALK gene rearrangement rate was 6.7%in 23,689 patients with advanced NSCLC and 8.2%in 17,436 patients with advanced lung *** quality control analysis of IHC-VENTANA-D5F3 revealed an intrahospital consistency rate of 98.2%(879/895)and an inter-hospital consistency rate of 99.2%(646/651).IHC-VENTANA-D5F3 was used in 53.6%,real-time polymerase chain reaction(RT-PCR)in 25.4%,next-generation sequencing(NGS)in 18.3%,and fluorescence in-situ hybridization(FISH)in 15.9%in the adenocarcinoma *** specimens tested with multiple methods,the consistency rates confirmed by IHC-VENTANA-D5F3 were 98.0%(822/839)for FISH,98.7%(1,222/1,238)forNGS,and 91.3%(146/160)for *** overall ALK gene rearrangement rateswere higher in females,patients of≤35 years old,never smokers,tumor cellularity of>50,and metastatic specimens used for testing in the total NSCLC population and adenocarcinoma subgroup(all P<0.05).Conclusions:This study highlights the real-world variability and challenges of ALK test in advanced NSCLC,demonstrating a predominant use of IHCVENTANA-D5F3 with high co

关键词： anaplastic lymphoma kinase diagnosis gene fusion non-small cell lung cancer

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UBE2T mediates the stemness properties of breast cancer cells through the mTOR signaling pathway

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BIOCELL 2024年第6期48卷 959-970页

作者： JIAWEI YIN YONGSHENG WANG GUANGWEI WEI MINGXIN WEN department of Traumatology The Second Hospital of Shandong UniversityJinan250033China department of pathology Weifang People’s HospitalWeifang261000China department of Human Anatomy Shandong University School of MedicineJinan250012China department of Cell Biology and Key Laboratory of Experimental Teratology Shandong University School of MedicineJinan250012China

Objectives:This study aimed to reveal the role and possible mechanism of the ubiquitin-conjugating enzyme 2T(UBE2T)in the biological activities of breast cancer stem cells(BCSCs).Methods:The specific protein and gene expression were quantified by Western blotting and quantitative real-time polymerase chain reaction,the proportion of BCSCs was examined by flow cytometry,and the self-renewal and proliferation of BCSCs were verified by serial sphere formation and soft ***:Increasing expression of UBE2T was drastically found in breast cancer than that in adjacent ***,UBE2T overexpression significantly increased the proportion of BCSCs in breast cancer cells and promoted their self-renewal and *** UBE2T exhibited the opposite ***2T increased the levels of the mammalian target of rapamycin and the phosphorylated mammalian target of *** target of rapamycin(mTOR)inhibitor rapamycin inhibited the function of UBE2T in ***:UBE2T plays a role in BCSCs through mTOR pathway and may suggest a novel therapeutic strategy for breast cancer.

关键词： UBE2T Breast cancer Breast cancer stem cell mTOR

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