Table 1.
Copy number alterations in addition to the KIF5B-RET fusion. Interestingly AKT2 amplification seen is a critical component of the PI3K/mTOR pathway, alterations of which has been associated with both de novo and acquired resistance to targeted therapy. The addition of the rapamycin analog everolimus may have both overcome the AKT amplification to produce a response in addition to its direct effects on the RET gene. In addition there was full homozygous loss of CDKN2A/B.
Gene | Copy Number | Position |
---|---|---|
MDM2 | 9 | chr12:69153996-69277205 |
NFKBIA | 10 | chr14:35871177-35873850 |
NKX2-1 | 10 | chr14:36947748-37023501 |
CCNE1 | 8 | chr19:30253918-30360638 |
AKT2 | 8 | chr19:40701261-40791492 |
AXL | 8 | chr19:41725275-41765809 |
CDKN2A | 0 | chr9:21853212-21998002 |
CDKN2B | 0 | chr9:21998748-22101832 |