目的:探讨同源异形盒基因B13(HOXB13)和c-myc在结直肠癌中表达的变化及意义。方法:用RT-PCR法和Western blot法检测54例结直肠癌患者癌组织及相应癌旁组织中HOXB13与c-myc的表达,并分析两者表达与结直肠癌的临床病理特征的关系。结果:...目的:探讨同源异形盒基因B13(HOXB13)和c-myc在结直肠癌中表达的变化及意义。方法:用RT-PCR法和Western blot法检测54例结直肠癌患者癌组织及相应癌旁组织中HOXB13与c-myc的表达,并分析两者表达与结直肠癌的临床病理特征的关系。结果:结直肠癌组织中的HOXB13 m RNA和蛋白的表达明显低于癌旁正常结直肠组织,而c-myc m RNA和蛋白的表达明显高于癌旁正常结直肠组织(均P<0.05);两者的表达均与淋巴转移以及TNM分期有关(均P<0.05);结直肠组织中HOXB13蛋白与c-myc蛋白的表达呈负相关(r=-0.572,P<0.001)。结论:HOXB13的表达降低可能促进了原癌基因c-myc的表达,从而促进结直肠癌的发生、发展和转移。展开更多
The influence ofγ-irradiation on properties of METGLAS 2605S2 and FC3-1 Fe78B13Si9 has been investigated by Möissbauer spectroscopy and bending test.The ductility and orientation of magnetization were changed by...The influence ofγ-irradiation on properties of METGLAS 2605S2 and FC3-1 Fe78B13Si9 has been investigated by Möissbauer spectroscopy and bending test.The ductility and orientation of magnetization were changed byγ-irradiation.They probably correlated with the change of microscopic free volume and release of stress in the ribbon,respectively.展开更多
Background:Aortic dissection(AD)is a fatal cardiovascular disease for which the key involved genes are largely unknown.Here,we aimed to identify promising AD biomarkers from high-throughput RNA expressing data.Methods...Background:Aortic dissection(AD)is a fatal cardiovascular disease for which the key involved genes are largely unknown.Here,we aimed to identify promising AD biomarkers from high-throughput RNA expressing data.Methods:In the GSE98770 dataset,differentially expressed mRNAs(DE-mRNAs)and microRNAs(DE-microRNAs)were identified through differentially expressed gene analysis and gene set enrichment analysis.The regulatory network between DE-mRNAs and DE-microRNAs was established,and hub genes were identified with Cytoscape.Relationships between hub genes and AD were confirmed in the Comparative Toxicogenomics Database(CTD).Potential key transcription factors were discovered with Cytoscape.Hub gene verification was performed by qPCR and immunofluorescence analyses of human specimens.Results:DE-mRNAs and DE-microRNAs were identified.Four mRNAs and microRNA-1321(miR-1321)were found to have the most connections with other genes.CBL was connected to the most genes and interacted with miR-1321,which was also connected to the most genes among the DE-microRNAs.In addition,CBL was associated with AD in the CTD.Among the top five transcription factors potentially regulating CBL transcription,only HOXB13 was a DE-mRNA.The findings were further successfully verified in human specimens.Conclusion:CBL,which may be transcriptionally regulated by HOXB13 and post-transcriptionally regulated by miR-1321,was identified as the most promising potential biomarker for AD.展开更多
文摘目的:探讨同源异形盒基因B13(HOXB13)和c-myc在结直肠癌中表达的变化及意义。方法:用RT-PCR法和Western blot法检测54例结直肠癌患者癌组织及相应癌旁组织中HOXB13与c-myc的表达,并分析两者表达与结直肠癌的临床病理特征的关系。结果:结直肠癌组织中的HOXB13 m RNA和蛋白的表达明显低于癌旁正常结直肠组织,而c-myc m RNA和蛋白的表达明显高于癌旁正常结直肠组织(均P<0.05);两者的表达均与淋巴转移以及TNM分期有关(均P<0.05);结直肠组织中HOXB13蛋白与c-myc蛋白的表达呈负相关(r=-0.572,P<0.001)。结论:HOXB13的表达降低可能促进了原癌基因c-myc的表达,从而促进结直肠癌的发生、发展和转移。
文摘The influence ofγ-irradiation on properties of METGLAS 2605S2 and FC3-1 Fe78B13Si9 has been investigated by Möissbauer spectroscopy and bending test.The ductility and orientation of magnetization were changed byγ-irradiation.They probably correlated with the change of microscopic free volume and release of stress in the ribbon,respectively.
基金supported by grants from the Guangzhou Basic and Applied Basic Research Foundation(202201010940)National Natural Science Foundation of China(82200306)Guangdong Basic and Applied Basic Research Foundation(2021A1515111092).
文摘Background:Aortic dissection(AD)is a fatal cardiovascular disease for which the key involved genes are largely unknown.Here,we aimed to identify promising AD biomarkers from high-throughput RNA expressing data.Methods:In the GSE98770 dataset,differentially expressed mRNAs(DE-mRNAs)and microRNAs(DE-microRNAs)were identified through differentially expressed gene analysis and gene set enrichment analysis.The regulatory network between DE-mRNAs and DE-microRNAs was established,and hub genes were identified with Cytoscape.Relationships between hub genes and AD were confirmed in the Comparative Toxicogenomics Database(CTD).Potential key transcription factors were discovered with Cytoscape.Hub gene verification was performed by qPCR and immunofluorescence analyses of human specimens.Results:DE-mRNAs and DE-microRNAs were identified.Four mRNAs and microRNA-1321(miR-1321)were found to have the most connections with other genes.CBL was connected to the most genes and interacted with miR-1321,which was also connected to the most genes among the DE-microRNAs.In addition,CBL was associated with AD in the CTD.Among the top five transcription factors potentially regulating CBL transcription,only HOXB13 was a DE-mRNA.The findings were further successfully verified in human specimens.Conclusion:CBL,which may be transcriptionally regulated by HOXB13 and post-transcriptionally regulated by miR-1321,was identified as the most promising potential biomarker for AD.
