The “New” Biochemistry of Polyamines: When Metabolic Pathways Collide

基础生物化学和增殖的代谢调节仍然是细胞生物学知识的基本组成部分，使生物学和医学取得了突破性进展。多胺是一种独特而普遍存在的低mr胺，在许多生物过程中起着至关重要的作用，包括增殖、DNA/RNA合成等。这一提议将从机制上剖析多胺的“新”生物化学，因为我们已经发现，多胺受铁在2个主要水平上调节，涉及100个10个关键的多胺途径蛋白。这一建议代表了首次专门设计的实地研究，以剖析涉及这种关系的机制。我们的中心假设是铁调节多胺代谢。

Basic biochemistry and the metabolic regulation of proliferation remain as the fundamental building blocks of knowledge in cell biology that have enabled breakthrough advances in biology and medicine. Polyamines are unique and ubiquitous low-Mr amines that play vital roles in many biological processes, including proliferation, DNA/RNA synthesis, etc. This proposal will mechanistically dissect the "new" biochemistry of polyamines, as we have discovered that polyamines are regulated by iron at 2-major levels, involving >10-key polyamine pathway proteins. This proposal represents first-in-field studies specifically designed to dissect mechanisms involved in this relationship. Our Central Hypothesis is that iron regulates polyamine metabolism.