Jeffamine Derivatized TentaGel Beads and Poly(dimethylsiloxane) Microbead Cassettes for Ultrahigh-Throughput in Situ Releasable Solution-Phase Cell-Based Screening of One-Bead-One-Compound Combinatorial Small Molecule Libraries
作者:Jared B. Townsend、Farzana Shaheen、Ruiwu Liu、Kit S. Lam
DOI:10.1021/cc100083f
日期:2010.9.13
segregated bilayer TentaGel (TG) beads with solid phase peptide synthesis chemistry resulting in beads with increased loading capacity, hydrophilicity, and porosity at the outer layer. We have found that such bead configuration can facilitate ultrahigh-throughput in situ releasable solution-phase screening of OBOC libraries. An encoded releasable OBOC small molecule library was constructed on Jeffamine
一种有效地将大量微珠以阵列形式固定和分配在微细加工的聚二甲基硅氧烷(PDMS)盒中的方法,用于基于超高通量原位可释放溶液相细胞的单珠一化合物(OBOC)筛选描述了组合库。将可商购的Jeffamine三胺T-403(〜440 Da)衍生化,以使其两个氨基被Fmoc保护,其余氨基被琥珀酸酐封端以生成羧基。然后,通过固相肽合成化学将该所得的三官能亲水性聚合物依次两次偶联至拓扑分离的双层TentaGel(TG)珠的外层,从而在外层产生具有增加的负载能力,亲水性和孔隙率的珠。我们发现,这种微珠配置可以促进OBOC库的超高通量原位可释放溶液相筛选。在Jeffamine衍生的TG磁珠上构建了编码的可释放OBOC小分子文库,该库化合物通过二硫键连接到外层,并在磁珠内部编码标签。可以将化合物珠子有效地装载(5-10分钟)到直径为5 cm的培养皿中,该培养皿中装有10,000孔PDMS微珠盒,这样90%的微孔