Method of Treating Cystic Fibrosis with Src Kinase Inhibitors
Scientists have shown that src kinase inhibitors are effective at treating CF patients with a frame deletion of F508 in the CFTR gene.
The most common mutation in CF patients is a frame deletion of phenylalanine 508 in the CFTR gene. Cincinnati Children’s researchers have shown that src kinase inhibitiors, alone or in combination with existing treatments, are effective at treating CF patients with this deletion. In particular, PP2, a known src kinase inhibitor, resulted in better restoration of ion channel function in bronchial epithelia of CF patients than Orkambi. Further the combination of PP2 and Orkambi was synergistic. It is hypothesized that src kinase inhibitors produce anti-inflammatory and anti-infective properties giving them a dual-action benefit to patients. Significantly lower doses of the src kinase inhibitors were given in vivo to show efficacy indicating the possibility of identifying a therapeutic window below the MTC.
- CF therapy
- Combination therapy
- Better efficacy than current treatments
- Small molecule strategy
- Therapeutic and anti-infective dual action
There are nearly 2000 mutations in the CFTR gene that can cause CF, and the F508del mutation is found in ~70% of CF patients. The high occurrence of the F508del mutation in the CF population makes it an ideal drug target.
Anjaparavanda P. Naren PhD, Division of Pulmonary Medicine & Anil Jegga DVM, MRes, Division of Biomedical Informatics