Cyclic tetrapeptides with –SS– bridging between amino acid side chains for potent histone deacetylases’ inhibition
作者:Toru Arai、Md. Ashraful Hoque、Norikazu Nishino、Hyun-Jung Kim、Akihiro Ito、Minoru Yoshida
DOI:10.1007/s00726-013-1527-8
日期:2013.10
Cyclic depsipeptide FK228 with an intramolecular disulfide bond is a potent inhibitor of histone deacetylases (HDAC). FK228 is stable in blood because of its prodrug function, whose –SS– bond is reduced within the cell. Here, cyclic peptides with –SS– bridges between a variety of amino acids were synthesized and assayed for HDAC inhibition. Cyclic peptide 3, cyclo(-l-amino acid-l-amino acid-l-Val-d-Pro-)
具有分子内二硫键的环状二肽FK228是组蛋白脱乙酰基酶(HDAC)的有效抑制剂。由于FK228的前药功能,其在细胞内的–SS–键减少,因此在血液中稳定。在这里,合成了在多种氨基酸之间带有–SS–桥的环状肽,并检测了其对HDAC的抑制作用。环肽3,环( -升-氨基酸升-氨基酸升-Val- d -Pro-),与第一和第二个氨基酸之间的-SS-桥,被发现是一种有效的HDAC抑制剂。环肽7,环( -升-氨基酸d -氨基酸升-Val- d- Pro-)在第一个和第二个氨基酸之间带有-SS-桥,也是一种有效的HDAC抑制剂。