Targeting Core

核心标题：瞄准核心 核心概述：传统上，强大的蛋白质特异性靶向配基要求是由抗体(Abs)来满足的。然而，抗体往往存在明显的问题，包括成本高、选择困难、选择性问题、制备困难、稳定性和免疫原性。靶向核心目标是为纳米粒子提供TCCN系列靶向试剂中的项目，这些纳米粒子不仅包括“黄金标准”抗体，而且还包括针对内皮细胞、癌细胞和干细胞的新型适配子和多肽，既针对特定的细胞表面配体，也针对细胞本身。所有项目都将使用来自生物靶向核心的资源。具体地说，靶向核心将开发针对CD44(项目1；目标2)、E-选择素(项目1：目标2，项目2：目标2)、VGFR、EGFR、ICAM-1和细胞(项目3：目标1)的纳米颗粒，以及通过噬菌体展示靶向蛋白质(项目1；目标2)和细胞(项目3：目标1；项目4：目标2)的多肽和抗体。此外，靶向核心将提供靶向配体和所有微米/纳米颗粒的共轭(项目1-3)。

CORE TITLE: Targeting Core CORE SUMMARY: Traditionally, robust protein-specific targeting ligand requirements are met by antibodies (Abs). Antibodies however often have significant problems, including high cost, selection difficulties, selectivity problems, preparation difficulties, stability and immunogenicity. The Targeting Core objective is to provide the Projects in the TCCN sets of targeting reagents for the nanoparticles that not only includes "gold standard" antibodies but novel aptamers and peptides to both endothelial, cancer and stem cells, both to specific cell surface ligands as well as the cells themselves. All projects will use the resources from the Biological Targeting Core. Specifically, the Targeting Core will develop thioaptamers and next-generation Xaptamers for targeting nanoparticles to CD44 (Project 1; Aim 2), E-Selectin, (Project 1: Aim 2, Project 2: Aim 2), VGFR, EGFR, ICAM-1 and cells (Project 3: Aim 1) and peptides and antibodies via phage display for targeting proteins (Project 1; Aim 2) and cells (Project 3: Aim 1; Project 4: Aim 2). Additionally, the Targeting Core will provide conjugation of targeting ligands and all micro/nanoparticles (Projects 1-3).