Mutant W99F confers resistance to CHI-DEL
Researchers generated a W99F mutant resistant to CHI-DEL, proving the drug specifically targets CHI3L1. In cells with wild-type rescue, CHI-DEL sensitivity was restored, whereas the W99F rescue maintained tumor growth while conferring complete resistance.
- Field
- the brain and neuroscience
- What they did
- Researchers created a new protein (mutant W99F) that makes the target action of the drug CHI-DEL on the protein CHI3L1 impossible, while preserving normal cell function.
- Why it matters
- This allows researchers to prove that the drug works specifically on its target and not on other processes, which is critical for treating glioblastoma.
#glioblastoma#chi3l1#small molecule#drug resistance#crystal structure



