目的:利用噬菌体7肽库筛选高转移潜能卵巢癌细胞株HO-8910PM表面转移相关分子结合肽。方法:利用噬菌体展示技术体外快速差减筛选(biopanning and rapid analysis of selective interactive ligands,BRASIL)卵巢癌细胞株HO-8910和HO-8910...目的:利用噬菌体7肽库筛选高转移潜能卵巢癌细胞株HO-8910PM表面转移相关分子结合肽。方法:利用噬菌体展示技术体外快速差减筛选(biopanning and rapid analysis of selective interactive ligands,BRASIL)卵巢癌细胞株HO-8910和HO-8910PM,经过连续5轮生物淘洗,随机挑选14个噬菌体单克隆进行DNA测序,并进行ELISA、噬菌体竞争结合实验验证阳性噬菌体的亲和性。结果:噬菌体克隆Z3(短肽LRLRNTR)对高转移潜能卵巢癌细胞株HO-8910PM有较高的亲和性。结论:噬菌体展示技术筛选的短肽LRLRNTR可望为卵巢肿瘤早期诊断、转移复发及治疗提供新的方向。展开更多
Luminescent quantum dots(QDs) are a promising alternative to organic dyes for fluorescence-based applications. Filamentous phage was labeled with QDs and its infective capability is observed after labeling. The experi...Luminescent quantum dots(QDs) are a promising alternative to organic dyes for fluorescence-based applications. Filamentous phage was labeled with QDs and its infective capability is observed after labeling. The experimental result shows that the labeling phage can still infect E.coli K91 normally. We have also developed the procedures for using QDs to label CHO-IR cells and Mouse Kidney tissue slice. The tissue slice remained stably labeled for over 10 d and the cells remained stably labeled even for over 5 months.展开更多
文摘目的:利用噬菌体7肽库筛选高转移潜能卵巢癌细胞株HO-8910PM表面转移相关分子结合肽。方法:利用噬菌体展示技术体外快速差减筛选(biopanning and rapid analysis of selective interactive ligands,BRASIL)卵巢癌细胞株HO-8910和HO-8910PM,经过连续5轮生物淘洗,随机挑选14个噬菌体单克隆进行DNA测序,并进行ELISA、噬菌体竞争结合实验验证阳性噬菌体的亲和性。结果:噬菌体克隆Z3(短肽LRLRNTR)对高转移潜能卵巢癌细胞株HO-8910PM有较高的亲和性。结论:噬菌体展示技术筛选的短肽LRLRNTR可望为卵巢肿瘤早期诊断、转移复发及治疗提供新的方向。
文摘Luminescent quantum dots(QDs) are a promising alternative to organic dyes for fluorescence-based applications. Filamentous phage was labeled with QDs and its infective capability is observed after labeling. The experimental result shows that the labeling phage can still infect E.coli K91 normally. We have also developed the procedures for using QDs to label CHO-IR cells and Mouse Kidney tissue slice. The tissue slice remained stably labeled for over 10 d and the cells remained stably labeled even for over 5 months.