As some investigations have shown that human anti-keratin auto antibody (AK auto Abs) generally exist in human and animal bodies, and compose of the basic part of immune system. AK auto Abs play an important role in immune homeostasis.

• 研究表明，人体内存在的天然抗角蛋白自身抗体(anti-keratin auto antibody，AK auto Abs)存在于人和多种动物体内，构成了免疫系统的基本组成部分，参与免疫自稳态的调节。