Novel mammalian midbody proteins by MALDI-MS

本项目的目标是通过基质辅助激光解吸/电离（MALDI-MS）鉴定和表征构成哺乳动物中体的蛋白质，以鉴定有丝分裂纺锤体组装和细胞分裂过程中的新参与者。我计划筛选爪蟾纺锤体提取物中可能影响纺锤体组装的蛋白质。我将利用秀丽隐杆线虫系统利用实时成像和RNA干扰技术寻找影响细胞分裂的蛋白质。此外，秀丽隐杆线虫和人类细胞系将为研究这些蛋白在有丝分裂过程中的定位提供良好的系统。最终，我希望以学术或研究机构的独立研究者的身份解决细胞组织和细胞质分裂的问题。由于许多细胞分裂过程在癌细胞和出生缺陷中受到干扰，对细胞分裂过程的机制的理解应该导致对癌症病理基础的理解。在后基因组时代，发现构成细胞结构的蛋白质，即蛋白质组学，将有助于药物开发，因为所有药物都是针对蛋白质的。

The goal of this project is to identify and characterize proteins that comprise the mammalian midbody by matrix assisted laser desorption/ionization (MALDI-MS) to identify novel players during mitotic spindle assembly and cytokinesis. I plan to screen Xenopus spindle extracts for proteins that may affect spindle assembly. I will utilize the C. elegans system to look for proteins that affect cytokinesis utilizing live imaging and RNA interference techniques. In addition, C. elegans and human cell lines will provide excellent systems to study the localization of these proteins during mitosis. Ultimately, I hope to address questions of cellular organization and cytokinesis as an independent investigator at an academic or research institute. Since many cell division processes are perturbed in cancerous cells and birth defects, the understanding of the mechanisms that underlie cell division processes ought to lead to an understanding of the basis for cancer pathology. In the post-genomic era, the discovery of proteins that comprise cellular structures, proteomics, will aid in drug development since all drugs are directed against proteins.