Development Capability
Mimetica has demonstrated the ability to successfully transfer the
biological activity of peptide GPCR ligands to its proprietary scaffolds
in every case attempted.
It has also demonstrated the ability to optimise those active compounds
to increase activity and selectivity.
Lead Compounds
Mimetica has developed active (< 10 uM) mimetics against several
receptors including:
- C5a – inflammation
- MC-1 – inflammation, pigmentation
- MC-4 – obesity, sexual
function
- MC-5 – dermatology
- SST-4/5 – anti-angiogenesis, cancer
- urotensin II
- integrin GPIIb/IIIa
The most advanced compounds are those for MC5-R
which show low nanomolar activity and 100 fold selectivity.
The mimetics have several advantages over native peptides making them
more likely to be useful drugs:
- enhanced stability
- increased lipophilicity
- improved bioavailability
- increased rigidity
- decreased size
Representative mimetics have demonstrated good levels
of caco-2 permeability, stability to plasma and cellular proteases
and oral availability in rat models. No evidence of systematic stability
or toxicity problems has been found.
Mimetica’s unique chemistry provides many opportunities for
the optimisation of the lead compounds initially generated. The unique
flexibility and control of the synthesis and the range of Mimetica’s
scaffolds means that iterative optimisation can be highly effective.
Mimetica has demonstrated that variation of the scaffold shape can
lead to large increases in activity and selectivity.
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