期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
总状蕨藻盾叶变种寡糖的酶解制备及其免疫调节活性的作用机制
1
作者 曾瑾子 林倩敏 +3 位作者 许静宜 徐宝军 黄耀南 黄日明 《食品科学》 EI CAS CSCD 北大核心 2024年第17期42-51,共10页
将总状蕨藻盾叶变种多糖经乳糖酶酶解、膜过滤、透析和冻干制备获得总状蕨藻盾叶变种寡糖(Caulerpa racemosa var.peltate oligosaccharide,CRVO-G),测定CRVO-G的相对分子质量与单糖组成,评价CRVO-G的免疫调节活性,并对其作用机制展开... 将总状蕨藻盾叶变种多糖经乳糖酶酶解、膜过滤、透析和冻干制备获得总状蕨藻盾叶变种寡糖(Caulerpa racemosa var.peltate oligosaccharide,CRVO-G),测定CRVO-G的相对分子质量与单糖组成,评价CRVO-G的免疫调节活性,并对其作用机制展开研究。结果显示,CRVO-G主要是由相对分子质量分别为617.115、621.081和995.368的2种四糖和1种六糖组成的寡糖混合物,主要由半乳糖(51.0%)、甘露糖(21.3%)、葡萄糖(11.5%)、木糖(6.5%)、鼠李糖(2.3%)、葡萄糖醛酸(2.0%)、盐酸氨基葡萄糖(1.8%)、岩藻糖(0.8%)、盐酸氨基半乳糖(0.7%)、半乳糖醛酸(0.7%)、甘露糖醛酸(0.7%)和阿拉伯糖(0.6%)组成。此外,CRVO-G具有良好的免疫调节活性,能促进一氧化氮(NO)和免疫因子的释放,如白细胞介素-1β、白细胞介素-6和肿瘤坏死因子-α。代谢组学和蛋白免疫印迹结果表明,CRVO-G可以促进巨噬细胞花生四烯酸代谢通路中血栓素A2和15-酮前列腺素F2α的合成,提高环氧合酶-2(cyclooxygenase-2,COX-2)、诱导型一氧化氮合酶(inducible nitric oxide synthase,iNOS)和核因子κB(nuclear factorκB,NF-κB)的磷酸化蛋白的表达水平。研究表明,在巨噬细胞RAW264.7细胞中CRVO-G通过NF-κB/iNOS/COX-2途径发挥免疫调节作用。 展开更多
关键词 总状蕨藻盾叶变种 寡糖 酶解 免疫调节 分子机制
下载PDF
The potential development of drug resistance in rheumatoid arthritis patients identified with p53 mutations
2
作者 Congling Qiu Joyce Tsz Wai Chan +8 位作者 David Wei Zhang io nam wong Yaling Zeng Betty Yuen Kwan Law Simon Wing Fai Mok Ivo Ricardo De Seabra Rodrigues Dias Wenfeng Liu Liang Liu Vincent Kam Wai wong 《Genes & Diseases》 SCIE CSCD 2023年第6期2252-2255,共4页
Rheumatoid arthritis(RA)is a chronic inflammatory disease characterized by cartilage and bone damage with the presence of pannus formation which causes uncontrollable proliferation and invasion of fibroblast-like syno... Rheumatoid arthritis(RA)is a chronic inflammatory disease characterized by cartilage and bone damage with the presence of pannus formation which causes uncontrollable proliferation and invasion of fibroblast-like synoviocytes(FLS).Since rheumatoid arthritis is a chronic disorder,the patients normally need to undergo prolonged antirheumatic treatment with the use of disease-modifying antirheumatic drugs(DMARDs),steroids,and nonsteroidal anti-inflammatory drugs(NSAIDs).The efficacy of such long-term pharmaceutical intervention can be significantly affected by the development of drug resistance.The pathological relationship between rheumatoid arthritis and cancer hinted that some chemotherapeutic drugs,such as methotrexate(MTX),could be used for RA treatment.This idea was reinforced by the analysis of mutations in p53 tumor suppressor gene.Around 50%of p53 somatic mutations observed from various cancers are also identified in the synovium of RA patients1(Fig.1A).Of note,the hyperplastic synovium in RA with overexpressed p53 mutants contributed to the destruction of joints in patients with erosive RA. 展开更多
关键词 PATIENTS DRUGS RHEUMATOID
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部