为了解决骨形态发生蛋白10(bone morphogenetic protein 10,BMP10)前体蛋白proBMP10在中国仓鼠卵巢(CHO)细胞中由于Furin导致的表达产物不均一问题,构建了proBMP10在Furin酶切识别位点处的突变体proBMP10-1(R313K)和proBMP10-2(R316K),...为了解决骨形态发生蛋白10(bone morphogenetic protein 10,BMP10)前体蛋白proBMP10在中国仓鼠卵巢(CHO)细胞中由于Furin导致的表达产物不均一问题,构建了proBMP10在Furin酶切识别位点处的突变体proBMP10-1(R313K)和proBMP10-2(R316K),并分别将目的基因定点整合进CHO-K1-BAK-/BAX-基因组,成功构建了稳定表达目标蛋白质的重组CHO细胞株。结果表明,proBMP10-2 (R316K)不再被Furin切割,且具有生物活性,而proBMP10-1(R313K)仍然会被Furin切割。展开更多
Objective:Lung squamous cell carcinoma(LUSC)is associated with a low survival rate.Evidence suggests that bone morphogenetic proteins(BMPs)and their receptors(BMPRs)play crucial roles in tumorigenesis and progression....Objective:Lung squamous cell carcinoma(LUSC)is associated with a low survival rate.Evidence suggests that bone morphogenetic proteins(BMPs)and their receptors(BMPRs)play crucial roles in tumorigenesis and progression.However,a comprehensive analysis of their role in LUSC is lacking.Our study aimed to explore the relationship between BMPs/BMPRs expression levels and the tumorigenesis and prognosis of LUSC.Methods:The“R/Limma”package was utilized to analyze the differential expression characteristics of BMPs/BMPRs in LUSC,using data from TCGA,GTEx,and GEO databases.Concurrently,the“survminer”packages were employed to investigate their prognostic value and correlation with clinical features in LUSC.The core gene associated with LUSC progression was further explored through weighted gene correlation network analysis(WGCNA).LASSO analysis was conducted to construct a prognostic risk model for LUSC.Clinical specimens were examined by immunohistochemical analysis to confirm the diagnostic value in LUSC.Furthermore,based on the tumor immune estimation resource database and tumor-immune system interaction database,the role of the core gene in the tumor microenvironment of LUSC was explored.Results:GDF10 had a significant correlation only with the pathological T stage of LUSC,and the protein expression level of GDF10 decreased with the tumorigenesis of LUSC.A prognostic risk model was constructed with GDF10 as the core gene and 5 hub genes(HRASLS,HIST1H2BH,FLRT3,CHEK2,and ALPL)for LUSC.GDF10 showed a significant positive correlation with immune cell infiltration and immune checkpoint expression.Conclusion:GDF10 might serve as a diagnostic biomarker reflecting the tumorigenesis of LUSC and regulating the tumor immune microenvironment to guide more effective treatment for LUSC.展开更多
目的:评价γ-干扰素诱导蛋白10(IP-10)鉴别结核分枝杆菌不同感染状态的诊断效能.方法:检索Cochrane Library、PubMed、Web of Science、中国知网、维普、万方等数据库,检索自建库至2023年1月的相关文献,进行数据提取和质量评价,采用RevM...目的:评价γ-干扰素诱导蛋白10(IP-10)鉴别结核分枝杆菌不同感染状态的诊断效能.方法:检索Cochrane Library、PubMed、Web of Science、中国知网、维普、万方等数据库,检索自建库至2023年1月的相关文献,进行数据提取和质量评价,采用RevMan 5.3和Stata 17.0软件进行统计分析.结果:共纳入75篇文献,96项研究,共11116例患者.Meta分析结果为IP-10用于鉴别结核感染和非结核感染的合并敏感度为0.82(95%CI:0.79~0.84),特异度为0.87(95%CI:0.84~0.90),阳性似然比为6.40(95%CI:5.20~8.00),阴性似然比为0.21(95%CI:0.18~0.24),诊断比数比为31(95%CI:23~420),受试者工作曲线的曲线下面积为0.91(95%CI:0.88~0.93).结论:IP-10有助于鉴别结核不同感染状态,但最终确诊需要结合病史、症状等进行综合诊断.展开更多
文摘为了解决骨形态发生蛋白10(bone morphogenetic protein 10,BMP10)前体蛋白proBMP10在中国仓鼠卵巢(CHO)细胞中由于Furin导致的表达产物不均一问题,构建了proBMP10在Furin酶切识别位点处的突变体proBMP10-1(R313K)和proBMP10-2(R316K),并分别将目的基因定点整合进CHO-K1-BAK-/BAX-基因组,成功构建了稳定表达目标蛋白质的重组CHO细胞株。结果表明,proBMP10-2 (R316K)不再被Furin切割,且具有生物活性,而proBMP10-1(R313K)仍然会被Furin切割。
文摘Objective:Lung squamous cell carcinoma(LUSC)is associated with a low survival rate.Evidence suggests that bone morphogenetic proteins(BMPs)and their receptors(BMPRs)play crucial roles in tumorigenesis and progression.However,a comprehensive analysis of their role in LUSC is lacking.Our study aimed to explore the relationship between BMPs/BMPRs expression levels and the tumorigenesis and prognosis of LUSC.Methods:The“R/Limma”package was utilized to analyze the differential expression characteristics of BMPs/BMPRs in LUSC,using data from TCGA,GTEx,and GEO databases.Concurrently,the“survminer”packages were employed to investigate their prognostic value and correlation with clinical features in LUSC.The core gene associated with LUSC progression was further explored through weighted gene correlation network analysis(WGCNA).LASSO analysis was conducted to construct a prognostic risk model for LUSC.Clinical specimens were examined by immunohistochemical analysis to confirm the diagnostic value in LUSC.Furthermore,based on the tumor immune estimation resource database and tumor-immune system interaction database,the role of the core gene in the tumor microenvironment of LUSC was explored.Results:GDF10 had a significant correlation only with the pathological T stage of LUSC,and the protein expression level of GDF10 decreased with the tumorigenesis of LUSC.A prognostic risk model was constructed with GDF10 as the core gene and 5 hub genes(HRASLS,HIST1H2BH,FLRT3,CHEK2,and ALPL)for LUSC.GDF10 showed a significant positive correlation with immune cell infiltration and immune checkpoint expression.Conclusion:GDF10 might serve as a diagnostic biomarker reflecting the tumorigenesis of LUSC and regulating the tumor immune microenvironment to guide more effective treatment for LUSC.
