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A review of the literature on the use of CRISPR/Cas9 gene therapy to treat hepatocellular carcinoma 被引量:1
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作者 ELHAM AMJAD RAFAELE PEZZANI BABAK SOKOUTI 《Oncology Research》 SCIE 2024年第3期439-461,共23页
Noncoding RNAs instruct the Cas9 nuclease to site speifillyl cleave DNA in the CRISPR/Cas9 system.Despite the high incidence of hepatocellular carcinoma(HCC),the patient's outcome is poor.As a result of the emerge... Noncoding RNAs instruct the Cas9 nuclease to site speifillyl cleave DNA in the CRISPR/Cas9 system.Despite the high incidence of hepatocellular carcinoma(HCC),the patient's outcome is poor.As a result of the emergence of therapeutic resistance in HCC patients,dlinicians have faced difficulties in treating such tumor.In addition,CRISPR/Cas9 screens were used to identify genes that improve the dlinical response of HCC patients.It is the objective of this article to summarize the current understanding of the use of the CRISPR/Cas9 system for the treatment of cancer,with a particular emphasis on HCC as part of the current state of knowledge.Thus,in order to locate recent developments in oncology research,we examined both the Scopus database and the PubMed database.The ability to selectively interfere with gene expression in combinatorial CRISPR/Cas9 screening can lead to the discovery of new effective HCC treatment regimens by combining clinically approved drugs.Drug resistance can be overcome with the help of the CRISPR/Cas9 system.HCC signature genes and resistance to treatment have been uncovered by genome-scale CRISPR activation screening although this method is not without limitations.It has been extensively examined whether CRISPR can be used as a tool for disease research and gene therapy.CRISPR and its applications to tumor research,particularly in HCC,are examined in this study through a review of the literature. 展开更多
关键词 CRISPR/Cas9 system gene therapy TUMOR Hepatocellular carcinoma Liver cancer gene editing
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Studies on the temporal,structural,and interacting features of the clubroot resistance gene Rcr1 using CRISPR/Cas9-based systems
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作者 Hao Hu Fengqun Yu 《Horticultural Plant Journal》 SCIE CAS CSCD 2024年第4期1035-1048,共14页
Clubroot disease is a severe threat to Brassica crops globally,particularly in western Canada.Genetic resistance,achieved through pyramiding clubroot resistance(CR)genes with different modes of action,is the most impo... Clubroot disease is a severe threat to Brassica crops globally,particularly in western Canada.Genetic resistance,achieved through pyramiding clubroot resistance(CR)genes with different modes of action,is the most important strategy for managing the disease.However,studies on the CR gene functions are quite limited.In this study,we have conducted investigations into the temporal,structural,and interacting features of a newly cloned CR gene,Rcr1,using CRISPR/Cas9 technology.For temporal functionality,we developed a novel CRISPR/Cas9-based binary vector,pHHIGR-Hsp18.2,to deliver Rcr1 into a susceptible canola line(DH12075)and observed that early expression of Rcr1 is critical for conferring resistance.For structural functionality,several independent mutations in specific domains of Rcr1 resulted in loss-offunction,highlighting their importance for CR phenotype.In the study of the interacting features of Rcr1,a cysteine protease gene and its homologous allele in canola were successfully disrupted via CRISPR/Cas9 as an interacting component with Rcr1 protein,resulting in the conversion from clubroot resistant to susceptible in plants carrying intact Rcr1.These results indicated an indispensable role of these two cysteine proteases in Rcr1-mediated resistance response.This study,the first of its kind,provides valuable insights into the functionality of Rcr1.Further,the new vector p HHIGR-Hsp18.2 demonstrated an inducible feature on the removal of add-on traits,which should be useful for functional genomics and other similar research in brassica crops. 展开更多
关键词 Clubroot resistance Brassica crops CANOLA Rcr1 CRISPR/Cas9 system gene knock-out Timing control Non-synonymous mutation Protein-protein interaction
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Understanding the role of transmembrane 9 superfamily member 1 in bladder cancer pathogenesis
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作者 Venkata Krishna Vamsi Gade Budhi Singh Yadav 《World Journal of Clinical Oncology》 2024年第4期468-471,共4页
In this editorial we comment on the article by Wei et al,published in the recent issue of the World Journal of Clinical Oncology.The authors investigated the role of Transmembrane 9 superfamily member 1(TM9SF1)protein... In this editorial we comment on the article by Wei et al,published in the recent issue of the World Journal of Clinical Oncology.The authors investigated the role of Transmembrane 9 superfamily member 1(TM9SF1)protein in bladder cancer(BC)carcinogenesis.Lentiviral vectors were used to achieve silencing or overexpression of TM9SF1 gene in three BC cell lines.These cell lines were then subject to cell counting kit 8,wound-healing assay,transwell assay,and flow cytometry.Proliferation,migration,and invasion of BC cells were increased in cell lines subjected to TM9SF1 overexpression.TM9SF1 silencing inhibited proliferation,migration and invasion of BC cells.The authors conclude that TM9SF1 may be an oncogene in bladder cancer pathogenesis. 展开更多
关键词 Urinary bladder cancer Transmembrane 9 superfamily member 1 gene cell line Lentiviral vectors Wound healing assay ONCOgene Proliferation Migration
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Cloning and Phylogenetic Analysis of a Fatty Acid Elongase Gene from Nannochloropsis oculata CS179 被引量:4
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作者 MA Xiaolei YU Jianzhong +1 位作者 ZHU Baohua YANG Guanpin 《Journal of Ocean University of China》 SCIE CAS 2009年第4期392-398,共7页
Nannochloropsis oculata CS179, a unicellular marine microalga, is rich in long-chain polyunsaturated fatty acids (LCPUFAs). Elongase and desaturase play a key role in the biosynthesis of PUFAs. A new elongase gene, ... Nannochloropsis oculata CS179, a unicellular marine microalga, is rich in long-chain polyunsaturated fatty acids (LCPUFAs). Elongase and desaturase play a key role in the biosynthesis of PUFAs. A new elongase gene, which encodes 322 amino acids, was identified via RT-PCR and 5' and 3' RACE. The sequence of the elongase gene was blast-searched in the NCBI GenBank and showed a similarity to those of the coptosporidium. But the NJ-tree revealed that the N. oculata CS 179 elongase clustered with those of the microalgae Phaeodac^lum tricornutum, Ostreocoecus tauri and Thalassiosira pseudonana. 展开更多
关键词 Nannochloropsis oculata gene cloning elongase PUFAS
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miR-126过表达和ADAM9基因沉默对胃癌SGC-7901细胞生物学行为的影响及其机制
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作者 魏海峰 倪志强 +5 位作者 魏雁虹 王起来 李首庆 马寅芙 谭岩 方艳秋 《吉林大学学报(医学版)》 CAS CSCD 北大核心 2024年第2期310-319,共10页
目的:探讨微小RNA-126(miR-126)过表达和解整联蛋白金属蛋白酶9(ADAM9)基因沉默对胃癌细胞生物学行为的影响,并阐明其作用机制。方法:体外培养人胃低分化腺癌SGC-7901细胞和人正常胃黏膜上皮NGEC细胞,提取细胞中总RNA,采用实时荧光定量P... 目的:探讨微小RNA-126(miR-126)过表达和解整联蛋白金属蛋白酶9(ADAM9)基因沉默对胃癌细胞生物学行为的影响,并阐明其作用机制。方法:体外培养人胃低分化腺癌SGC-7901细胞和人正常胃黏膜上皮NGEC细胞,提取细胞中总RNA,采用实时荧光定量PCR(RT-qPCR)法检测2种细胞中miR-126和ADAM9 mRNA表达水平。将处于对数生长期的SGC-7901细胞分为miR-126过表达组(miR-126-OE组)和ADAM9基因沉默组(ADAM9 siRNA组),以LipofectamineTM 2000为载体分别转染miR-126模拟物(miR-126 mimics)和敲低ADAM9的RNA寡核苷酸,并设置相应的阴性对照组。采用噻唑蓝(MTT)法检测各组细胞增殖活性,细胞划痕实验检测各组细胞迁移率,Transwell小室实验检测各组细胞的迁移细胞数和侵袭细胞数,Western blotting法检测各组细胞中E-钙黏蛋白、N-钙黏蛋白和波形蛋白表达水平。TargerScan网站预测miR-126的靶基因并通过双荧光素酶报告基因实验验证miR-126和ADAM9的靶向调控关系,采用RT-qPCR法和Western blotting法检测转染miR-126 mimics后SGC-7901细胞中ADAM9 mRNA和蛋白表达水平。结果:RT-qPCR法检测,与人正常胃黏膜上皮NGEC细胞比较,胃癌SGC-7901细胞中miR-126表达水平明显降低(P<0.05),而ADAM9mRNA表达水平明显升高(P<0.05)。MTT法检测,SGC-7901细胞过表达miR-126或沉默ADAM9基因48和72 h后,与相应阴性对照组比较,miR-126 OE组和ADAM9 siRNA组细胞增殖活性均明显降低(P<0.05或P<0.01)。细胞划痕实验检测,与相应阴性对照组比较,48 h后miR-126 OE组和ADAM9 siRNA组细胞迁移率明显降低(P<0.05)。Transwell小室实验检测,与相应阴性对照组比较,miR-126 OE组和ADAM9 siRNA组迁移细胞数和侵袭细胞数明显减少(P<0.05或P<0.01)。Western blotting法检测,与相应阴性对照组比较,miR-126-OE组和ADAM9 siRNA组细胞中E-钙黏蛋白表达水平明显升高(P<0.05或P<0.01),而N-钙黏蛋白和波形蛋白表达水平明显降低(P<0.05或P<0.01)。靶基因预测,ADAM9的3´-UTR含有与miR-126-3p互补的核苷酸序列。双荧光素酶报告基因实验,ADAM9是miR-126靶向负调控的下游基因。SGC-7901细胞转染miR-126 mimics 48 h后,与mimics NC组比较,miR-126 OE组细胞中ADAM9 mRNA和蛋白表达水平均明显降低(P<0.05或P<0.01)。结论:胃癌SGC-7901细胞中miR-126低表达而ADAM9基因高表达。miR-126过表达可抑制胃癌SGC-7901细胞增殖活性、迁移和侵袭能力,其机制可能与miR-126靶向负调控ADAM9并抑制胃癌细胞的上皮-间质转化(EMT)进程有关。 展开更多
关键词 胃肿瘤 微小RNA-126 靶基因 解整联蛋白金属蛋白酶9 上皮-间质转化
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MMP9、AEG-1及EphA7蛋白在中耳鳞癌组织中的表达及其临床意义
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作者 朱丽丽 陈晓君 +1 位作者 朱晓丹 刘梦君 《实用癌症杂志》 2024年第10期1601-1603,1607,共4页
目的探讨基质金属蛋白酶-9(MMP-9)、星形细胞提升基因-1(AEG-1)、络氨酸蛋白激酶受体A7(EphA7)蛋白在中耳鳞癌组织中的表达及其意义。方法选取65例中耳鳞癌患者作为研究对象,均行手术治疗,术中采集癌组织及癌旁正常组织送检,检测MMP-9、... 目的探讨基质金属蛋白酶-9(MMP-9)、星形细胞提升基因-1(AEG-1)、络氨酸蛋白激酶受体A7(EphA7)蛋白在中耳鳞癌组织中的表达及其意义。方法选取65例中耳鳞癌患者作为研究对象,均行手术治疗,术中采集癌组织及癌旁正常组织送检,检测MMP-9、AEG-1、EphA7蛋白表达情况,比较癌组织与癌旁正常组织内上述表达差异;并分析MMP-9、AEG-1、EphA7蛋白表达与年龄、性别、肿瘤分期、淋巴结转移、分化程度等病理特征的关系。结果癌组织内MMP-9、AEG-1、EphA7蛋白阳性表达率高于癌旁正常组织,差异有统计学意义(P<0.05);MMP-9、AEG-1、EphA7蛋白阳性表达患者Ⅲ~Ⅳ期、有淋巴结转移占比高于阴性表达患者,差异有统计学意义(P<0.05)。结论MMP-9、AEG-1、EphA7蛋白在中耳鳞癌组织内呈高表达状况,且其表达与肿瘤分期、淋巴结转移关系密切,或可作为临床治疗的新靶点。 展开更多
关键词 中耳鳞癌 基质金属蛋白酶-9 星形细胞提升基因-1 络氨酸蛋白激酶受体A7
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Genome-wide identification of the MATE gene family and functional characterization of PbrMATE9 related to anthocyanin in pear 被引量:2
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作者 Jiawen Sheng Xuening Chen +4 位作者 Bobo Song Hainan Liu Jiaming Li Runze Wang Jun Wu 《Horticultural Plant Journal》 SCIE CAS CSCD 2023年第6期1079-1094,共16页
Plant multidrug and toxic compound extrusion(MATE) genes play an important role in the process of detoxification, plant morphogenesis, and anthocyanin accumulation. However, whether the MATE gene family functions in p... Plant multidrug and toxic compound extrusion(MATE) genes play an important role in the process of detoxification, plant morphogenesis, and anthocyanin accumulation. However, whether the MATE gene family functions in pear peel coloration is still unknown. To evaluate and identify the MATE gene family members which are involving in anthocyanin accumulation and coloration in pear. In this study, 85 MATE genes were identified in the reference pear genome of ‘Dangshansuli’ through genome-wide identification. Based on gene structure and phylogenetic tree analysis, the MATE family was divided into five subfamilies. RNA sequencing and quantitative real-time polymerase chain reaction(qRTPCR) indicated that the expression patterns of PbrMATEs were tissue-specific. 28.24%(24) of PbrMATE genes were expressed in the fruits, and44.71%(38) of PbrMATE genes were expressed in the leaves. Additionally, we found that the expression levels of PbrMATE9, PbrMATE26,PbrMATE50, and PbrMATE69 in debagged fruits with red peel were significantly higher than those in bagged fruits without red peel, according to our bagging/debagging treatment of ‘Mantianhong’. The expression pattern of PbrMATE9 was consistent with the variation trend in anthocyanin content, suggesting that it might play an important role in anthocyanin accumulation in response to light exposure. Subcellular localization showed that PbrMATE9 was a membrane protein. More strikingly, the transient overexpression of PbrMATE9 promoted anthocyanin accumulation in the peel of pear, and the expression of structural genes(PbrCHI, PbrANS, PbrDFR, and PbrUFGT) in the anthocyanin biosynthesis pathway also increased significantly. Through co-expression network analysis, the transcription factors were identified, such as WRKY, COL,GATA, and BBX, which might be involved in the regulation of PbrMATE9. The study has enriched the genetic resources and improved the understanding of the regulation network of anthocyanin accumulation in pear. 展开更多
关键词 PEAR ANTHOCYANIN COLORATION MATE gene family PbrMATE9 RNA-SEQ
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Research progress and application of the CRISPR/Cas9 gene-editing technology based on hepatocellular carcinoma 被引量:1
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作者 Shijing Yu Ruirui Zhao +5 位作者 Bingchen Zhang Chunmei Lai Linyan Li Jiangwen Shen Xiarong Tan Jingwei Shao 《Asian Journal of Pharmaceutical Sciences》 SCIE CAS 2023年第4期1-21,共21页
Hepatocellular carcinoma(HCC)is now a common cause of cancer death,with no obvious change in patient survival over the past few years.Although the traditional therapeutic modalities for HCC patients mainly involved in... Hepatocellular carcinoma(HCC)is now a common cause of cancer death,with no obvious change in patient survival over the past few years.Although the traditional therapeutic modalities for HCC patients mainly involved in surgery,chemotherapy,and radiotherapy,which have achieved admirable achievements,challenges are still existed,such as drug resistance and toxicity.The emerging gene therapy of clustered regularly interspaced short palindromic repeat/CRISPR-associated nuclease 9-based(CRISPR/Cas9),as an alternative to traditional treatment methods,has attracted considerable attention for eradicating resistant malignant tumors and regulating multiple crucial events of target gene-editing.Recently,advances in CRISPR/Cas9-based anti-drugs are presented at the intersection of science,such as chemistry,materials science,tumor biology,and genetics.In this review,the principle as well as statues of CRISPR/Cas9 technique were introduced first to show its feasibility.Additionally,the emphasis was placed on the applications of CRISPR/Cas9 technology in therapeutic HCC.Further,a broad overview of non-viral delivery systems for the CRISPR/Cas9-based anti-drugs in HCC treatment was summarized to delineate their design,action mechanisms,and anticancer applications.Finally,the limitations and prospects of current studies were also discussed,and we hope to provide comprehensively theoretical basis for the designing of anti-drugs. 展开更多
关键词 Hepatocellular carcinoma CRISPR/Cas9 Screen gene Delivery strategy
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美仁牦牛MYL 9基因克隆、生物信息学分析及组织表达研究
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作者 马荣 喇永福 +6 位作者 包鹏甲 郭宪 路建卫 扎老 赵雪 梁春年 成述儒 《中国畜牧兽医》 CAS CSCD 北大核心 2024年第4期1410-1419,共10页
【目的】克隆美仁牦牛肌球蛋白轻链9(myosin light chain 9,MYL9)基因CDS区并对其进行生物信息学分析,检测MYL 9基因的组织表达特征,为探究该基因功能提供一定理论依据。【方法】以美仁牦牛肌肉组织cDNA为模板,利用PCR扩增并克隆美仁牦... 【目的】克隆美仁牦牛肌球蛋白轻链9(myosin light chain 9,MYL9)基因CDS区并对其进行生物信息学分析,检测MYL 9基因的组织表达特征,为探究该基因功能提供一定理论依据。【方法】以美仁牦牛肌肉组织cDNA为模板,利用PCR扩增并克隆美仁牦牛CDS区序列,与其他物种进行相似性比对及系统进化树构建;通过在线软件对MYL9蛋白进行生物信息学分析,利用实时荧光定量PCR检测MYL 9基因在美仁牦牛心脏、肝脏、脾脏、肺脏、肾脏、肌肉、脂肪和睾丸组织中表达情况。【结果】美仁牦牛MYL 9基因CDS区长516 bp,共编码171个氨基酸。系统进化树结果显示,美仁牦牛与野牦牛、普通牛亲缘关系最近,与高山倭蛙亲缘关系最远。MYL9蛋白分子式为C 858 H 1324 N 234 O 274 S 12,原子数为2702,理论等电点为4.85,不稳定系数和总平均亲水性分别为37.22和―0.772,属于稳定亲水性蛋白。MYL9蛋白无信号肽和跨膜螺旋结构,属于非分泌性蛋白;主要定位于线粒体、细胞核、细胞质中,具有17个特异性磷酸化位点。MYL9蛋白二级结构主要由α-螺旋、无规则卷曲、β-折叠和延伸链构成,三级结构预测结果与二级结构一致。实时荧光定量PCR结果显示,MYL 9基因在美仁牦牛心脏、肝脏、脾脏、肺脏、肾脏、肌肉、脂肪和睾丸组织中均表达,且肝脏和肌肉组织中表达量显著高于其他组织(P<0.05)。【结论】本研究成功克隆美仁牦牛MYL 9基因CDS区,探究了MYL 9基因的生物学功能及组织表达特征,研究结果为进一步探究牦牛MYL 9基因功能特征提供了参考。 展开更多
关键词 美仁牦牛 MYL 9基因 克隆 生物信息学 组织表达
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Genome-wide analysis of nuclear factor Y genes and functional investigation of watermelon ClNF-YB9 during seed development
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作者 Qin Feng Ling Xiao +8 位作者 Jiafa Wang Jie Wang Chenyang Chen Jianyang Sun Xixi Wu Man Liu Xian Zhang Shujuan Tian Li Yuan 《The Crop Journal》 SCIE CSCD 2023年第5期1469-1479,共11页
The nuclear factor Y(NF-Y) gene family is a class of transcription factors that are widely distributed in eukaryotes and are involved in various biological processes. However, the NF-Y gene family members in watermelo... The nuclear factor Y(NF-Y) gene family is a class of transcription factors that are widely distributed in eukaryotes and are involved in various biological processes. However, the NF-Y gene family members in watermelon, a valued and nutritious fruit, remain largely unknown and their functions have not been characterized. In the present study, 22 ClNF-Y genes in watermelon, 29 CsNF-Y genes in cucumber, and 24CmNF-Y genes in melon were identified based on the whole-genome investigation and their protein properties, gene location, gene structure, motif composition, conserved domain, and evolutionary relationship were investigated. ClNF-YB9 from watermelon and its homologs in cucumber and melon were expressed specifically in seeds. Its expression remained low in the early stages of watermelon seed development,increased at 20 days after pollination(DAP), and peaked at 45–50 DAP. Moreover, the knockout mutant Clnf-yb9 exhibited abnormal leafy cotyledon phenotype, implying its critical role during seed formation.Finally, protein interaction assays showed that ClNF-YB9 interacts with all ClNF-YCs and the ClNF-YB9-YC4 heterodimer was able to recruit a ClNF-YA7 subunit to assemble a complete NF-Y complex, which may function in seed development. This study revealed the structure and evolutionary relationships of the NF-Y gene family in Cucurbitaceae and the novel function of ClNF-YB9 in regulating seed development in watermelon. 展开更多
关键词 WATERMELON NF-Y gene family Evolution relationship ClNF-YB9 gene function Seed development
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miR-9-5p对肺腺癌细胞增殖和侵袭迁移能力的调控作用及其机制
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作者 赵宝山 孙光蕊 +2 位作者 黄景涛 侯继申 梁宗英 《山东医药》 CAS 2024年第8期19-23,共5页
目的观察微小RNA(miR)-9-5p对肺腺癌细胞增殖和侵袭迁移能力的调控作用,并基于痉挛性截瘫20(SPG20)基因及Notch信号通路探讨相关机制。方法培养肺腺癌细胞株A549并分为抑制物组、阴性对照组和未转染组,抑制物组和阴性对照组分别转染miR-... 目的观察微小RNA(miR)-9-5p对肺腺癌细胞增殖和侵袭迁移能力的调控作用,并基于痉挛性截瘫20(SPG20)基因及Notch信号通路探讨相关机制。方法培养肺腺癌细胞株A549并分为抑制物组、阴性对照组和未转染组,抑制物组和阴性对照组分别转染miR-9-5p抑制物和阴性对照,未转染组不进行转染;采用MTT法检测细胞增殖能力,Transwell小室实验检测细胞侵袭能力,划痕愈合实验检测细胞迁移能力,Western blotting法检测Notch信号通路相关蛋白[E-钙黏蛋白(E-cadherin)、Notch1、Snail和基质金属蛋白酶2(MMP-2)]。采用TargetScan(http://www.targetscan.org/vert_80/)预测miR-9-5p与SPG20基因结合位点,并用双荧光素酶报告基因分析进行验证;检测肺腺癌组织和细胞中的miR-9-5p、SPG20 mRNA和蛋白;将A549细胞分为抑制物组、阴性对照组和未转染组,采用RT-PCR法检测各组细胞中的SPG20 mRNA。结果培养12、24、36、48 h时miR-9-5p抑制物组细胞增殖能力低于阴性对照组和未转染组(P均<0.05)。抑制物组穿模细胞数和细胞迁移距离低于阴性对照组和为转染组(P均<0.05)。抑制物组Notch1、Snail、MMP-2蛋白表达低于阴性对照组和未转染组,E-cadherin蛋白表达高于阴性对照组和未转染组(P均<0.05)。SPG20基因存在连续的可以与miR-9-5p互补的核苷酸序列;共转染SPG20-WT和miR-9-5p质粒的A549细胞相对荧光素酶活性低于其他细胞(P均<0.05)。肺腺癌组织和细胞中miR-9-5p高表达、SPG20mRNA和蛋白低表达(P均<0.05),肺腺癌组织中miR-9-5p与SPG20 mRNA表达呈负相关(r=-0.914,P<0.05)。抑制物组SPG20 mRNA表达高于阴性对照组和未转染组(P均<0.05)。结论miR-9-5p能够抑制肺腺癌细胞的增殖能力及侵袭、迁移能力,作用机制可能与负性调节SPG20基因表达及调控Notch信号通路有关。 展开更多
关键词 微小RNA-9-5p SPG20基因 肺腺癌 NOTCH信号通路
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Gene Repair of iPSC Line with GARS (G294R) Mutation of CMT2D Disease by CRISPR/Cas9
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作者 Pei-jie LU Pei ZHANG +8 位作者 Yu-chun LIU Na JING Ya-nan GUO Peng-shuai WANG Lin-lin SU Qi GUO Qiang MA Yu-ming XU Shou-tao ZHANG 《Current Medical Science》 SCIE CAS 2023年第2期261-267,共7页
Objective Charcot-Marie-Tooth disease(CMT)severely affects patient activity,and may cause disability.However,no clinical treatment is available to reverse the disease course.The combination of CRISPR/Cas9 and iPSCs ma... Objective Charcot-Marie-Tooth disease(CMT)severely affects patient activity,and may cause disability.However,no clinical treatment is available to reverse the disease course.The combination of CRISPR/Cas9 and iPSCs may have therapeutic potential against nervous diseases,such as CMT.Methods In the present study,the skin fibroblasts of CMT type 2D(CMT2D)patients with the c.880G>A heterozygous nucleotide mutation in the GARS gene were reprogrammed into iPSCs using three plasmids(pCXLE-hSK,pCXLE-hUL and pCXLE-hOCT3/4-shp5-F).Then,CRISPR/Cas9 technology was used to repair the mutated gene sites at the iPSC level.Results An iPSC line derived from the GARS(G294R)family with fibular atrophy was successfully induced,and the mutated gene loci were repaired at the iPSC level using CRISPR/Cas9 technology.These findings lay the foundation for future research on drug screening and cell therapy.Conclusion iPSCs can differentiate into different cell types,and originate from autologous cells.Therefore,they are promising for the development of autologous cell therapies for degenerative diseases.The combination of CRISPR/Cas9 and iPSCs may open a new avenue for the treatment of nervous diseases,such as CMT. 展开更多
关键词 Charcot-Marie-Tooth disease GARS CRISPR/Cas9 IPSCS gene therapy
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伴有PAX9突变非综合征型先天缺牙患者的牙颌面表型研究
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作者 窦嘉琪 高洁 +3 位作者 卞晓玲 王凤 代庆刚 吴轶群 《上海交通大学学报(医学版)》 CAS CSCD 北大核心 2024年第6期687-693,共7页
目的·评估配对盒基因9(paired box gene 9,PAX9)突变非综合征型先天缺牙(non-syndromic tooth agenesis,NSTA)患者的牙颌面表型。方法·对2016年1月—2023年12月于上海交通大学医学院附属第九人民医院口腔第二门诊部就诊的NST... 目的·评估配对盒基因9(paired box gene 9,PAX9)突变非综合征型先天缺牙(non-syndromic tooth agenesis,NSTA)患者的牙颌面表型。方法·对2016年1月—2023年12月于上海交通大学医学院附属第九人民医院口腔第二门诊部就诊的NSTA患者进行全外显子组测序,筛查PAX9突变患者。对筛查到的患者采用曲面体层摄影片评估缺牙的位置和数目,采用X射线头影测量评估患者的牙颌面畸形情况。结果·7例PAX9突变的NSTA患者纳入研究,男性3例(42.9%),女性4例(57.1%)。患者首诊年龄7~31岁,平均(19.7±8.0)岁。7例患者均携带PAX9杂合突变,其中4例为错义突变,3例为移码突变。平均缺失恒牙(15.9±2.9)颗,上颌缺失数[(9.6±2.6)颗]略多于下颌[(6.3±2.4)颗](P=0.030)。上颌第二磨牙(100.0%)、上颌尖牙(85.7%)、下颌第二前磨牙(85.7%)为最常见的缺失位点,下颌侧切牙(14.3%)、下颌尖牙(14.3%)为最少缺失的位点。移码突变的患者缺牙数[(18.3±2.1)颗]多于错义突变[(14.0±1.8)颗](P=0.032)。X射线头影测量结果显示:PAX9突变成年患者上牙槽座角(angle sella-nasion-subspinale,SNA)、颌凸角(angle nasion-subspinale-subspinale-porion,NA-APo)和前颅底长度(sella-nasion,S-N)均明显小于正常参考范围,提示上颌后缩,前颅底矢状向发育不足;面角(frankfort horizontal plane-nasion-porion,FH-NPo)大于参考值、Y轴角(Y axis)小于参考值,提示下颌前伸;上/下牙槽座角(angle subspinale-nasion-supramental,ANB)小于参考值,提示骨性Ⅲ类错畸形;上中切牙角(angle upper central incisor-nasion-subspinale,angle U1-NA)大于参考值,提示上中切牙唇倾;下中切牙-下颌平面角(angle lower central incisor-mandibular plane,IMPA)、下中切牙凸度(lower central incisor-nasion-supramental,L1-NB)小于参考值,提示下中切牙舌倾,上下前牙反倾向。结论·较为全面地报道了PAX9突变NSTA患者的牙颌面表型,有利于进一步理解PAX9在人类颌面部发育中的作用。 展开更多
关键词 配对盒基因9 牙颌面畸形 X射线头影测量 非综合征型先天缺牙 骨性Ⅲ类错畸形
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基于蛋白激酶NEK9/MTA2信号通路泛素化修饰探讨胃癌的转移机制
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作者 王志英 解祥军 蔡珂 《河北医学》 CAS 2024年第7期1087-1093,共7页
目的:基于永离有丝分裂基因A相关激酶9(NEK9)/转移相关肿瘤基因家族2(MTA2)信号通路泛素化修饰探讨胃癌(GC)的转移机制。方法:使用癌症基因组图谱(TCGA)和Kaplan-Meier Plotter数据库分析NEK9表达与GC分期、预后之间的关联。体外实验中,... 目的:基于永离有丝分裂基因A相关激酶9(NEK9)/转移相关肿瘤基因家族2(MTA2)信号通路泛素化修饰探讨胃癌(GC)的转移机制。方法:使用癌症基因组图谱(TCGA)和Kaplan-Meier Plotter数据库分析NEK9表达与GC分期、预后之间的关联。体外实验中,将GC细胞分为:对照组、shNC组、shNEK9组、shNC+NC-OE组、shNEK9+NC-OE组和shNEK9+MTA2-OE组。分别采用MTT和Transwell法测定细胞的增殖、迁移和侵袭,并通过Western blot检测NEK9、MTA2、上皮间充质转化(EMT)标记和PI3K/AKT信号通路蛋白表达。结果:TCGA数据库分析显示,NEK9 mRNA在肿瘤组织中的表达明显上调,并且与TNM分期较晚和NEK9高表达者的预后较差密切相关。此外,NEK9在7个GC细胞系中的表达明显高于正常胃上皮GES-1细胞(P<0.05)。与对照组相比,shNEK9组细胞活力、相对集落形成、EdU阳性细胞数、侵袭和迁移细胞数均显著降低(P<0.05)。此外,在shNEK9组细胞中,E-钙粘蛋白水平上调(P<0.05),波形蛋白水平下调(P<0.05)。通过免疫共沉淀试验证明NEK9与MTA2有相互作用。NEK9敲低加速了HGC-27细胞中MTA2的降解,并且MTA2泛素化在NEK9沉默的细胞中增加。与shNEK9+NC-OE组组相比,shNEK9+MTA2-OE组相对集落形成、EdU阳性细胞数和迁移和侵袭数均显著增加(P<0.05)。结论:NEK9在GC中明显上调,其敲低在体外抑制GC细胞的生长和转移。NEK9可能通过去泛素化途径稳定MTA2进而激活PI3K-AKT信号通路来对GC细胞产生促癌影响。 展开更多
关键词 胃癌 永离有丝分裂基因A相关激酶9 转移相关肿瘤基因家族2 泛素化修饰
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苗药紫金牛、铁扫帚组方干预慢性阻塞性肺疾病大鼠气道Wnt通路RhoA基因与TGF-β_(1)、MMP-9的相关性研究
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作者 罗弦 葛正行 +3 位作者 周洵 袁霞 李波 杨义 《贵州医药》 CAS 2024年第8期1179-1182,F0003,共5页
目的研究苗药紫金牛、铁扫帚组方干预COPD大鼠气道Wnt通路RhoA基因与TGF-β_(1)、MMP-9的相关性,从而探讨苗药紫金牛、铁扫帚配方干预COPD大鼠气道重塑的调控机制。方法构建COPD大鼠模型,进行气道成纤维细胞的培养,采用ELISA检测气道成... 目的研究苗药紫金牛、铁扫帚组方干预COPD大鼠气道Wnt通路RhoA基因与TGF-β_(1)、MMP-9的相关性,从而探讨苗药紫金牛、铁扫帚配方干预COPD大鼠气道重塑的调控机制。方法构建COPD大鼠模型,进行气道成纤维细胞的培养,采用ELISA检测气道成纤维细胞上清液中TGF-β_(1)、MMP-9细胞因子的含量,并运用Westernblot方法检测气道成纤维细胞中RhoA基因蛋白的表达,从而研究RhoA基因表达与TGF-β_(1)、MMP-9细胞因子的相关性及苗药紫金牛、铁扫帚的影响。结果与正常组相比,COPD大鼠模型组气道成纤维细胞上清液中TGF-β_(1)、MMP-9的含量升高,同时RhoA基因在也是表达增高。经苗药紫金牛、铁扫帚治疗后,细胞因子TGF-β_(1)、MMP-9与RhoA基因的表达则降低,从而得出TGF-β_(1)、MMP-9细胞因子与RhoA基因呈正相关。结论COPD大鼠气道成纤维细胞上清液中TGF-β_(1)、MMP-9细胞因子是COPD大鼠气道重建中成纤维细胞增殖的关键因子。而RhoA基因对组织纤维化有关,且能调控细胞因子TGF-β_(1)、MMP-9。苗药紫金牛、铁扫帚能够抑制炎性因子TGF-β_(1)、MMP-9的表达及WNT通路的RhoA基因的增殖,从而寻求苗药紫金牛、铁扫帚配方干预COPD气道重塑的机制。 展开更多
关键词 慢性阻塞性肺疾病 RHOA基因 TGF-β_(1) MMP-9 紫金牛 铁扫帚
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水通道蛋白9商品化抗体和自制抗体识别位点的分析和应用
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作者 程全成 丁慧如 +3 位作者 王子元 方金玉 张晓丽 张卫光 《解剖学报》 CAS CSCD 2024年第2期237-240,共4页
目的分析水通道蛋白9(AQP9)商品化抗体和自制抗体的抗原识别位点,并鉴别其应用效果。方法利用Western blotting对比3种商品化抗体与自制AQP9抗体鉴定基因型的效果。分析4种抗体的抗原识别位点,及其在实际应用中的特异性。结果Western bl... 目的分析水通道蛋白9(AQP9)商品化抗体和自制抗体的抗原识别位点,并鉴别其应用效果。方法利用Western blotting对比3种商品化抗体与自制AQP9抗体鉴定基因型的效果。分析4种抗体的抗原识别位点,及其在实际应用中的特异性。结果Western blotting结果显示,3种商品化抗体在野生型(WT)和Aqp9^(-/-)小鼠中均可见蛋白条带。3种商品化抗体对应的血蓝蛋白(KLH)共轭合成肽依次为大鼠、人源和人源,与小鼠AQP9氨基酸序列存在一定差异。AQP3/7与AQP9分子量相近,且在肝中均有表达,同源性较高。自制抗体在WT鼠的27 kD位置可见一明显条带,但是Aqp9^(-/-)鼠的相应位置未见条带。结论1号和3号商品化抗体可用于辅助鉴别Aqp9^(-/-)鼠的基因型,自制抗体在蛋白水平上可以准确鉴定基因型。 展开更多
关键词 水通道蛋白9 肝脏 抗体 基因敲除 免疫印迹法 小鼠 大鼠
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SOX9调控肝星状细胞活化与增殖促进肝纤维化进展
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作者 熊敏莉 龚晓媛 +1 位作者 万舒淇 罗声政 《肝脏》 2024年第2期174-177,192,共5页
目的探究SOX9基因对肝星状细胞活化与增殖的影响。方法通过每周三次腹腔注射15%的四氯化碳或玉米油构建肝纤维化及对照小鼠模型。HE染色、Masson染色观察小鼠肝纤维化造模情况,qPCR检测小鼠肝脏SOX9、α-SMA、Col1基因表达。用TGFβ1细... 目的探究SOX9基因对肝星状细胞活化与增殖的影响。方法通过每周三次腹腔注射15%的四氯化碳或玉米油构建肝纤维化及对照小鼠模型。HE染色、Masson染色观察小鼠肝纤维化造模情况,qPCR检测小鼠肝脏SOX9、α-SMA、Col1基因表达。用TGFβ1细胞因子诱导LX2细胞活化,qPCR检测LX2细胞活化状态及敲减SOX9基因后SOX9、α-SMA、Col1、CyclinD1、PCNA基因mRNA表达。结果HE、Masson染色表明肝纤维化模型成功构建。qPCR结果表示肝纤维化标志基因α-SMA(造模组:2.568±0.726,对照组:1.000±0.272,t=4.518,P=0.002)与Col1表达明显上升(造模组:3.125±0.775,对照组:1.000±0.398,t=5.454,P=0.001)。SOX9基因在纤维化的小鼠肝脏中也显著上升(造模组:1.986±0.634,对照组:1.000±0.288,t=3.126,P=0.014)。在活化的LX2细胞中SOX9基因表达显著上调(活化组:1.718±0.395,对照组:1.000±0.155,t=3.783,P=0.005),敲减SOX9基因后胶原合成基因α-SMA(敲减组:0.621±0.142,对照组:1.000±0.188,t=3.590,P=0.007)与Col1(敲减组:0.558±0.170,对照组:1.000±0.130,t=4.608,P=0.002)以及增殖相关基因CyclinD1(敲减组:0.614±0.106,对照组:1.000±0.166,t=4.392,P=0.002)和PCNA(敲减组:0.525±0.138,对照组:1.000±0.234,t=3.897,P=0.005)表达明显下降,肝星状细胞活化与增殖被明显抑制。结论SOX9基因在肝纤维化小鼠肝脏中表达明显上升,敲减SOX9基因可以明显减轻肝星状细胞的活化,可能成为治疗肝纤维化的靶点。 展开更多
关键词 性别决定区域Y相关的高迁移率族框9基因 肝星状细胞 肝纤维化
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Facing ethical concerns in the age of precise gene therapy:Outlook on inherited arrhythmias
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作者 Federico Carbone Fabrizio Montecucco 《World Journal of Cardiology》 2024年第2期64-66,共3页
This editorial,comments on the article by Spartalis et al published in the recent issue of the World Journal of Cardiology.We here provide an outlook on potential ethical concerns related to the future application of ... This editorial,comments on the article by Spartalis et al published in the recent issue of the World Journal of Cardiology.We here provide an outlook on potential ethical concerns related to the future application of gene therapy in the field of inherited arrhythmias.As monogenic diseases with no or few therapeutic options available through standard care,inherited arrhythmias are ideal candidates to gene therapy in their treatment.Patients with inherited arrhythmias typically have a poor quality of life,especially young people engaged in agonistic sports.While genome editing for treatment of inherited arrhythmias still has theoretical application,advances in CRISPR/Cas9 technology now allows the generation of knock-in animal models of the disease.However,clinical translation is somehow expected soon and this make consistent discussing about ethical concerns related to gene editing in inherited arrhythmias.Genomic off-target activity is a known technical issue,but its relationship with ethnical and individual genetical diversity raises concerns about an equitable accessibility.Meanwhile,the costeffectiveness may further limit an equal distribution of gene therapies.The economic burden of gene therapies on healthcare systems is is increasingly recognized as a pressing concern.A growing body of studies are reporting uncertainty in payback periods with intuitive short-term effects for insurance-based healthcare systems,but potential concerns for universal healthcare systems in the long term as well.Altogether,those aspects strongly indicate a need of regulatory entities to manage those issues. 展开更多
关键词 ETHICS Inherited arrhythmias CRISPR/Cas9 gene therapy Equitable accessibility
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Exercise-induced modulation of miR-149-5p and MMP9 in LPS-triggered diabetic myoblast ER stress: licorice glycoside E as a potential therapeutic target
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作者 Yi Du Hong Liu 《Traditional Medicine Research》 2024年第8期23-34,共12页
Background:This study explores the relationship between endoplasmic reticulum(ER)stress and diabetes,particularly focusing on the impact of physical exercise on ER stress mechanisms and identifying potential therapeut... Background:This study explores the relationship between endoplasmic reticulum(ER)stress and diabetes,particularly focusing on the impact of physical exercise on ER stress mechanisms and identifying potential therapeutic drugs and targets for diabetes-related sepsis.The research also incorporates traditional physical therapy perspectives,emphasizing the genomic insights gained from exercise therapy in disease management and prevention.Methods:Gene analysis was conducted on the GSE168796 and GSE94717 datasets to identify ER stress-related genes.Gene interactions and immune cell correlations were mapped using GeneCard and STRING databases.A screening of 2,456 compounds from the TCMSP database was performed to identify potential therapeutic agents,with a focus on their docking potential.Techniques such as luciferase reporter gene assay and RNA interference were used to examine the interactions between microRNA-149-5p and MMP9.Results:The study identified 2,006 differentially expressed genes and 616 miRNAs.Key genes like MMP9,TNF-α,and IL1B were linked to an immunosuppressive state.Licorice glycoside E demonstrated high affinity for MMP9,suggesting its potential effectiveness in treating diabetes.The constructed miRNA network highlighted the regulatory roles of MMP9,IL1B,IFNG,and TNF-α.Experimental evidence confirmed the binding of microRNA-149-5p to MMP9,impacting apoptosis in diabetic cells.Conclusion:The findings highlight the regulatory role of microRNA-149-5p in managing MMP9,a crucial gene in diabetes pathophysiology.Licorice glycoside E emerges as a promising treatment option for diabetes,especially targeting MMP9 affected by ER stress.The study also underscores the significance of physical exercise in modulating ER stress pathways in diabetes management,bridging traditional physical therapy and modern scientific understanding.Our study has limitations.It focuses on the microRNA-149-5p-MMP9 network in sepsis,using cell-based methods without animal or clinical trials.Despite strong in vitro findings,in vivo studies are needed to confirm licorice glycoside E’s therapeutic potential and understand the microRNA-149-5p-MMP9 dynamics in real conditions. 展开更多
关键词 ER stress diabetes physical exercise gene expression microRNA-149-5p MMP9 licorice glycoside E traditional physical therapy genomics insights
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SNX9基因敲除小鼠模型的构建及表型分析
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作者 林恒 蒋晓倩 +3 位作者 胥元博 潘宗岳 任洋 杨朝鲜 《西南医科大学学报》 2024年第4期300-305,共6页
目的利用CRISPR/Cas9技术构建分选连接蛋白9(sorting nexin 9,SNX9)基因敲除小鼠模型并对其表型进行分析。方法针对C57BL/6小鼠SNX9基因第3~5外显子,设计gRNA靶位点并在体外转录获得sgRNA,与编码Cas9的mRNA混合后通过受精卵显微注射方... 目的利用CRISPR/Cas9技术构建分选连接蛋白9(sorting nexin 9,SNX9)基因敲除小鼠模型并对其表型进行分析。方法针对C57BL/6小鼠SNX9基因第3~5外显子,设计gRNA靶位点并在体外转录获得sgRNA,与编码Cas9的mRNA混合后通过受精卵显微注射方法获得F0代阳性敲除小鼠。通过繁育及基因型鉴定获得SNX9基因敲除纯合子小鼠(SNX9^(-/-)小鼠);取小鼠尾部组织提取DNA,用PCR和琼脂糖凝胶电泳进行基因型鉴定;提取SNX9基因敲除小鼠脑组织蛋白,用Western blot检测SNX9蛋白和小胶质细胞标志蛋白的表达水平;记录SNX9基因敲除小鼠的繁殖率和体重,并与野生型小鼠比较;步态系统分析SNX9基因敲除小鼠的步态情况;苏木精-伊红(HE)染色观察小鼠脑组织的形态结构。结果F1代杂合子(SNX9^(+/-))小鼠繁育后可获得3种基因型:野生型(SNX9^(+/+))、杂合子(SNX9^(+/-))、纯合子(SNX9^(-/-));鼠尾提取的DNA用聚合酶链反应(PCR)能鉴定出小鼠的基因型,SNX9敲除小鼠脑组织的SNX9蛋白表达显著低于野生型小鼠;SNX9基因敲除小鼠可正常生长繁殖,但繁殖率显著低于野生型小鼠(P<0.001),体重无显著差异(P>0.05);SNX9基因敲除小鼠脑组织形态学特征与野生型小鼠相比无明显差异;SNX9基因敲除小鼠脑组织的小胶质细胞标志蛋白表达水平与野生型小鼠相比差异无统计学意义(P>0.05)。结论利用CRISPR/Cas9技术成功获得SNX9基因敲除小鼠,为研究SNX9基因的生物学功能和调控机制提供了实验动物模型。 展开更多
关键词 分选连接蛋白9 CRISPR/Cas9 基因敲除 表型分析
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