A bispecific antibody targeting EGFR and AXL delays resistance to osimertinib.
Cell Rep Med
; 5(9): 101703, 2024 Sep 17.
Article
en En
| MEDLINE
| ID: mdl-39216477
ABSTRACT
Activating EGFR (epidermal growth factor receptor) mutations can be inhibited by specific tyrosine kinase inhibitors (TKIs), which have changed the landscape of lung cancer therapy. However, due to secondary mutations and bypass receptors, such as AXL (AXL receptor tyrosine kinase), drug resistance eventually emerges in most patients treated with the first-, second-, or third-generation TKIs (e.g., osimertinib). To inhibit AXL and resistance to osimertinib, we compare two anti-AXL drugs, an antibody (mAb654) and a TKI (bemcentinib). While no pair of osimertinib and an anti-AXL drug is able to prevent relapses, triplets combining osimertinib, cetuximab (an anti-EGFR antibody), and either anti-AXL drug are initially effective. However, longer monitoring uncovers superiority of the mAb654-containing triplet, possibly due to induction of receptor endocytosis, activation of immune mechanisms, or disabling intrinsic mutators. Hence, we constructed a bispecific antibody that engages both AXL and EGFR. When combined with osimertinib, the bispecific antibody consistently inhibits tumor relapses, which warrants clinical trials.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Acrilamidas
/
Proteínas Proto-Oncogénicas
/
Proteínas Tirosina Quinasas Receptoras
/
Anticuerpos Biespecíficos
/
Resistencia a Antineoplásicos
/
Receptores ErbB
/
Tirosina Quinasa del Receptor Axl
/
Compuestos de Anilina
Límite:
Animals
/
Female
/
Humans
Idioma:
En
Revista:
Cell Rep Med
Año:
2024
Tipo del documento:
Article
País de afiliación:
Israel
Pais de publicación:
Estados Unidos