Discovery of Hyperstable Noncanonical Plant-Derived Epidermal Growth Factor Receptor Agonist and Analogs

Here, we report the discovery of the first plant-derived and noncanonical epidermal growth factor receptor (EGFR) agonist, the 36-residue bleogen pB1 from Pereskia bleo of the Cactaceae family. We show that bleogen pB1 is a low-affinity EGFR agonist using a suite of chemical, biochemical, cellular, and animal experiments which include incisor eruption and wound-healing mouse models. A focused positional scanning pB1 library of Ala- and d-amino acid scans yielded a high-affinity pB1 analog, [K29k]pB1, with a 60-fold-improved EGFR affinity and mitogenicity. We show that the potency of [K29k]pB1 and the epidermal growth factor (EGF) is comparable in a diabetic mouse wound-healing model. We also show that both bleogen pB1 and [K29k]pB1 are hyperstable, being >100-fold more stable than EGF against proteolytic degradation. Overall, our discovery of a noncanonical proteolytic-resistant EGFR agonist scaffold could open new avenues for developing wound healing and skin regeneration therapeutics and biomaterials.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:64

Enthalten in:

Journal of medicinal chemistry - 64(2021), 11 vom: 10. Juni, Seite 7746-7759

Sprache:

Englisch

Beteiligte Personen:

Loo, Shining [VerfasserIn]
Kam, Antony [VerfasserIn]
Li, Bin Bin [VerfasserIn]
Feng, Nan [VerfasserIn]
Wang, Xiaoliang [VerfasserIn]
Tam, James P [VerfasserIn]

Links:

Volltext

Themen:

EC 2.7.10.1
ErbB Receptors
Journal Article
Peptides
Plant Proteins
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 17.06.2021

Date Revised 17.06.2021

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1021/acs.jmedchem.1c00551

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM325653291