The present invention relates to compositions and methods for inhibiting and reversing nonenzymatic cross-linking (protein aging). Accordingly, compositions are disclosed which comprise an agent capable of inhibiting the formation of advanced glycosylation endproducts of target proteins, and which additionally reverse pre-formed crosslinks in the advanced glycosylation endproducts by cleaving alpha-dicarbonyl-based protein crosslinks present in the advanced glycosylation endproducts. Certain agents useful are thiazolium salts. The method comprises contacting the target protein with the composition. Both industrial and therapeutic applications for the invention are envisioned, as food spoilage and animal protein aging can be treated. A novel immunoassay for detection of the reversal of the nonenzymatic crosslinking is also disclosed.
本发明涉及用于抑制和逆转非酶交联(蛋白老化)的组合物和方法。因此,揭示了包括一种能够抑制靶蛋白的高级糖基化终产物形成的药剂的组合物,并且通过裂解存在于高级糖基化终产物中的α-二
酮基蛋白交联,进一步逆转了预先形成的交联。某些有用的药剂是
噻唑盐。该方法包括将目标蛋白与该组合物接触。本发明预见了工业和治疗应用,因为可以治疗食品变质和动物蛋白质老化。还揭示了一种用于检测非酶交联逆转的新型免疫测定法。