Na+/K+-ATPase-specific peptide inhibitors/activators of Src and Src family kinases

摘要

A method for regulating Src and its downstream signaling pathway which includes binding between Src and Na+/K+-ATPase is disclosed. The Na+/K+-ATPase/Src complex is a functional receptor for cardiotonic steroids such as ouabain. Also disclosed are Src inhibitors or activators which include either Na+/K+-ATPase or Src that interfere with the interaction between the Na/K-ATPase and Src, act via a different mechanism from ATP analogs, and is pathway (Na+/K+-ATPase) specific.

主权项

1. A pharmaceutical composition for regulation of one or more signaling pathways involved in fibrosis, the composition comprising:
one or more Src and Src family kinases inhibitors comprised of one or more isolated peptides, or fragments thereof, that do not inhibit the ion pumping function of Na+/K+-ATPase; wherein the one or more isolated peptides comprises the active isolated Src-inhibitory peptide (P3) consisting of the amino acid sequence of SEQ ID NO: 2.