Glycosylation is a common post-translational modification in eukaryotic cells.It is involved in the production of many biologically active glycoproteins and the regulation of protein structure and function.Core fucosy...Glycosylation is a common post-translational modification in eukaryotic cells.It is involved in the production of many biologically active glycoproteins and the regulation of protein structure and function.Core fucosylation plays a vital role in the immune response.Most immune system molecules are core fucosylated glycoproteins such as complements,cluster differentiation antigens,immunoglobulins,cytokines,major histocompatibility complex molecules,adhesion molecules,and immune molecule synthesis-related transcription factors.These core fucosylated glycoproteins play important roles in antigen recognition and clearance,cell adhesion,lymphocyte activation,apoptosis,signal transduction,and endocytosis.Core fucosylation is dominated by fucosyltransferase 8(Fut8),which catalyzes the addition ofα-1,6-fucose to the innermost GlcNAc residue of N-glycans.Fut8 is involved in humoral,cellular,and mucosal immunity.Tumor immunology is associated with aberrant core fucosylation.Here,we summarize the roles and potential modulatory mechanisms of Fut8 in various immune processes of the gastrointestinal system.展开更多
虽然妊娠期合并恶性肿瘤较为罕见,但随着女性妊娠期年龄的增大、头颈部癌症(head and neck cancer,HNC)患者的年轻化,妊娠期合并HNC的发病率略有增加。然而,目前临床尚缺乏关于妊娠期HNC的规范化诊疗标准。本研究通过系统检索PubMed数据...虽然妊娠期合并恶性肿瘤较为罕见,但随着女性妊娠期年龄的增大、头颈部癌症(head and neck cancer,HNC)患者的年轻化,妊娠期合并HNC的发病率略有增加。然而,目前临床尚缺乏关于妊娠期HNC的规范化诊疗标准。本研究通过系统检索PubMed数据库,评估孕妇(含围产期)患HNC的频率、肿瘤类型、相关因素和特异性生物标志物,并依据循证医学证据,对妊娠期合并HNC的研究进行综述,以期为临床工作提供指导。展开更多
CDCA5高表达已被发现在多种肿瘤中具有致癌作用.运用生物信息学方法探讨CDCA5在泛癌中的表达特征,通过TCGA和GTEX数据库获得CDCA5在肿瘤样本和癌旁样本中的表达情况,从基因表达、生存分析、基因变异和免疫浸润等方面探讨了CDCA5在不同...CDCA5高表达已被发现在多种肿瘤中具有致癌作用.运用生物信息学方法探讨CDCA5在泛癌中的表达特征,通过TCGA和GTEX数据库获得CDCA5在肿瘤样本和癌旁样本中的表达情况,从基因表达、生存分析、基因变异和免疫浸润等方面探讨了CDCA5在不同肿瘤发病机制中的作用;通过GSCA(Gene Set Cancer Analysis)分析CDCA5表达与药物IC_(50)(半数抑制浓度)的关系并用免疫组化验证了该基因;通过STRING和GEPIA2数据库获取与CDCA5相关的基因并进行KEGG(Kyoto Encyclopedia of Genes and Genomes)富集分析.结果表明:CDCA5在大多数肿瘤中高表达,且与部分肿瘤患者的预后存在明显的相关性.CDCA5表达与肿瘤浸润免疫细胞(TIICs)显著相关并且TIICs标记物表现出不同的免疫浸润模式.拷贝数变异(CNV)与CDCA5的表达呈正相关,甲基化与CDCA5的表达呈负相关.IC_(50)数据显示多种药物可显著抑制CDCA5的表达.免疫组化实验证实了CDCA5在肝恶性肿瘤和结肠恶性肿瘤中具有促癌作用,可作为肿瘤治疗的生物标志物,为肿瘤治疗提供了一种新的研究方向.展开更多
基金Supported by the National Natural Science Foundation of China,No.32171279Natural Science Foundation of Liaoning Province,No.2022-BS-254,and No.2022-MS-317the Project of Dalian Medical Science Research,No.2012026.
文摘Glycosylation is a common post-translational modification in eukaryotic cells.It is involved in the production of many biologically active glycoproteins and the regulation of protein structure and function.Core fucosylation plays a vital role in the immune response.Most immune system molecules are core fucosylated glycoproteins such as complements,cluster differentiation antigens,immunoglobulins,cytokines,major histocompatibility complex molecules,adhesion molecules,and immune molecule synthesis-related transcription factors.These core fucosylated glycoproteins play important roles in antigen recognition and clearance,cell adhesion,lymphocyte activation,apoptosis,signal transduction,and endocytosis.Core fucosylation is dominated by fucosyltransferase 8(Fut8),which catalyzes the addition ofα-1,6-fucose to the innermost GlcNAc residue of N-glycans.Fut8 is involved in humoral,cellular,and mucosal immunity.Tumor immunology is associated with aberrant core fucosylation.Here,we summarize the roles and potential modulatory mechanisms of Fut8 in various immune processes of the gastrointestinal system.
文摘虽然妊娠期合并恶性肿瘤较为罕见,但随着女性妊娠期年龄的增大、头颈部癌症(head and neck cancer,HNC)患者的年轻化,妊娠期合并HNC的发病率略有增加。然而,目前临床尚缺乏关于妊娠期HNC的规范化诊疗标准。本研究通过系统检索PubMed数据库,评估孕妇(含围产期)患HNC的频率、肿瘤类型、相关因素和特异性生物标志物,并依据循证医学证据,对妊娠期合并HNC的研究进行综述,以期为临床工作提供指导。
文摘CDCA5高表达已被发现在多种肿瘤中具有致癌作用.运用生物信息学方法探讨CDCA5在泛癌中的表达特征,通过TCGA和GTEX数据库获得CDCA5在肿瘤样本和癌旁样本中的表达情况,从基因表达、生存分析、基因变异和免疫浸润等方面探讨了CDCA5在不同肿瘤发病机制中的作用;通过GSCA(Gene Set Cancer Analysis)分析CDCA5表达与药物IC_(50)(半数抑制浓度)的关系并用免疫组化验证了该基因;通过STRING和GEPIA2数据库获取与CDCA5相关的基因并进行KEGG(Kyoto Encyclopedia of Genes and Genomes)富集分析.结果表明:CDCA5在大多数肿瘤中高表达,且与部分肿瘤患者的预后存在明显的相关性.CDCA5表达与肿瘤浸润免疫细胞(TIICs)显著相关并且TIICs标记物表现出不同的免疫浸润模式.拷贝数变异(CNV)与CDCA5的表达呈正相关,甲基化与CDCA5的表达呈负相关.IC_(50)数据显示多种药物可显著抑制CDCA5的表达.免疫组化实验证实了CDCA5在肝恶性肿瘤和结肠恶性肿瘤中具有促癌作用,可作为肿瘤治疗的生物标志物,为肿瘤治疗提供了一种新的研究方向.
