p53 in pretreated patients and 4601
It is my understanding that p53 is mutated and stop responding to Temozolomide due to MGMT level.
In a nutshell, in mutated p53 AKT activation is an alternative pathway and no apoptosis occurs.
4601 should be effective in mutated p53. Mutated p53 are indenpendant of MDM2 inhibition effect, they seem to be always inactive.
Also, wild type p53 (cancerous p53) activition is closely dependant on MDM2.
4601 directly reduces MDM2 level by shutting down AKT.
So far very encouraging reading.
Will completed DD on p53 later.
Cheers.