A 110 (% o f D a y 1 ) R e la tiv e b o d y w e ig h t 120 C y c lo d e x t r in ip 1 q w 100 o n a le s p ib 5 5 m g /k g ip 1 q w 90 E r lo t in ib 1 2 . 5 m g / k g p o q d E r lo t in ib + o n a le s p ib 80 70 0 50 100 150 200 250 300 350 400 450 D ay B 120 (% o f D a y 1 ) R e la t iv e b o d y w e ig h t 130 110 C o n tro l O n a le s p ib 5 5 m g /k g ip 1 q w 100 C r iz o t in ib 5 0 m g / k g p o q d C r iz o t in ib + o n a le s p ib 90 80 0 3 2 0 1 0 1 0 1 1 0 0 0 0 1 9 8 0 0 0 7 6 5 4 0 3 2 0 0 1 0 70 D ay C (% o f D a y 1 ) R e la t iv e b o d y w e ig h t 110 100 C r iz o tin ib 5 0 m g /k g p o q d C r iz o tin ib + o n a le s p ib 5 5 m g /k g ip q w 90 80 70 0 2 4 6 8 10 12 Day Figure S1: Effects of onalespib combinations on body weight of mice bearing tumor xenografts Relative body weight change of mice bearing HCC827 (A), H2228 (B) or H2228-CR6 (C) tumour xenografts treated with 55 mg/kg onalespib in combination with 12.5 mg/kg erlotinib (A) or 50 mg/kg crizotinib (B, C). 1400 3 T u m o u r v o lu m e (m m ) 1 1200 2 1000 3 4 800 5 6 600 7 400 200 0 1 29 57 85 113 141 169 197 225 253 281 D ay Figure S2: Generation of crizotinib-resistant models H2228 tumours were grown subcutaneously in BALB/c SCID mice and continuously treated with crizotinib (50 mg/kg, p.o) from the day after cell implantation until they acquired resistance to treatment. A H 2 2 2 8 -C S 3 M 40 1 M 0 .3 M 30 0 .1 M 0 .0 3 M 0 .0 1 M 20 0 .0 0 3 M DMSO 10 3 M 50 100 IC50 Proliferation (µM) 1 M 0 .3 M 30 0 .1 M Crizotinib Onalespib H2228-CS 1.3 0.043 H2228-CR2 6.2 0.03 H2228-CR4 2.9 0.04 H2228-CR6 2.8 0.058 0 .0 3 M 20 0 .0 1 M DMSO 10 0 0 B 10 M 40 0 0 150 50 100 150 T im e (h ) T im e (h ) H 2 2 2 8 -C R 2 H 2 2 2 8 -C R 2 c r iz o tin ib 150 O n a le s p ib 100 10 M 3 M 1 M 0 .3 M 100 0 .1 M 0 .0 3 M 0 .0 1 M 50 0 .0 0 3 M DMSO M e a n p e rc e n t c o n flu e n c e M e a n p e rc e n t c o n flu e n c e o n a le s p ib 50 10 M M e a n p e rc e n t c o n flu e n c e M e a n p e rc e n t c o n flu e n c e H 2 2 2 8 -C S c r iz o tin ib 50 0 10 M 3 M 80 1 M 0 .3 M 60 0 .1 M 0 .0 3 M 40 0 .0 1 M 0 .0 0 3 M DMSO 20 0 0 50 100 150 0 50 100 150 T im e (h ) T im e (h ) H 2 2 2 8 -C R 4 c riz o tin ib 10 M M e a n p e rc e n t c o n flu e n c e 100 3 M 80 1 M 0 .3 M 60 0 .1 M 0 .0 3 M 40 0 .0 1 M 20 0 .0 0 3 M O n a le s p ib 80 M e a n p e rc e n t c o n flu e n c e H 2 2 2 8 -C R 4 0 50 100 3 M 1 M 60 0 .3 M 0 .1 M 40 0 .0 3 M 0 .0 1 M 0 .0 0 3 M 20 DMSO 0 DMSO 0 10 M 0 150 50 100 150 T im e (h ) T im e (h ) H 2 2 2 8 -C R 6 H 2 2 2 8 -C R 6 c r iz o tin ib 10 M 3 M 1 M 60 0 .3 M 0 .1 M 40 0 .0 3 M 0 .0 1 M 0 .0 0 3 M 20 DMSO o n a le s p ib 80 M e a n p e rc e n t c o n flu e n c e M e a n p e rc e n t c o n flu e n c e 80 10 M 3 M 1 M 60 0 .3 M 0 .1 M 40 0 .0 3 M 0 .0 1 M 0 .0 0 3 M 20 DMSO 0 0 0 50 100 T im e (h ) 150 0 50 100 T im e (h ) 150 Figure S3: The crizotinib-resistant cell lines are sensitive to onalespib A - H2228 cell lines generated from the crizotinib-resistant tumours presented in Figure S2 (CR2, CR4, CR6 originated from tumours 2, 4, 6 respectively) or from a crizotinibsensitive tumour (CS) were treated in vitro with concentrations of crizotinib or onalespib ranging from 0 to 10 µM for 7 days. Proliferation was measured in real-time using cell live microscopy and expressed as the mean percent confluency. B – Relative proliferation for each concentration of crizotinib and onalespib was calculated from the area under the curve (AUC) and IC50s determined. Figure S4: Exome-sequencing for crizotinib-resistant H2228-CR1, -CR5 and -CR7 cell lines Circos plot displaying non-synonymous somatic mutations and copy number variations in H2228-CR1, -CR5 and –CR7 samples (compared to H2228-CS) that were analysed after exome sequencing. Mutations are displayed as coloured radial lines. The inner ring displays copy number data for each sample. A pALK IC50 (µM) H2228-CS H2228-CR6 Onalespib 0.29 0.55 Crizotinib 0.20 1.70 H 2 2 2 8 -C R 6 100 50 H 2 2 2 8 -C S p A L K ( % c o n tr o l) p A L K ( % C o n tr o l) H 2 2 2 8 -C S H 2 2 2 8 -C R 6 100 50 0 0 -4 -3 -2 -1 0 1 -4 2 17AAG (nM) 0 ALK ALK ERK ERK pERK pERK AKT AKT pAKT pAKT S6 S6 pS6 pS6 HSP70 β-actin HSP70 H2228-CR6 (ALKamp, ALKC1156Y) 0 30 100 300 1000 0 H2228-CS (ALK+) 30 100 300 1000 1000 300 100 30 Onalespib (nM) 0 1000 H2228-CR6 (ALKamp, ALKC1156Y) H2228-CS (ALK+) 30 100 300 B -3 -2 -1 0 1 2 L o g 1 0 [ o n a le s p ib ] µ M L o g 1 0 [ C r iz o t in ib ] µ M C Proliferation IC50 (µM) H2228-CS H2228-CR6 Onalespib 0.043 0.058 17AAG 0.047 0.043 Ganetespib 0.028 0.023 β-actin Figure S5: Further characterisation of the H2228-CR6 cell line Inhibition of phospho-ALK was measured for H2228-CS and –CR6 lines treated with crizotinib or onalespib for 6h and IC50 values determined. PhosphoALK levels were measured using the PathScan® Phospho-ALK (Tyr1604) Chemiluminescent Sandwich ELISA. Representative curves are shown (A). H2228CS and –CR6 lines were treated with onalespib or 17-AAG at the indicated concentrations for 24h. The effect on protein levels associated with the ALK signalling pathway was measured by western blot (B). H2228-CS and –CR6 lines were treated in vitro with onalespib, 17-AAG or ganetespib and proliferation was measured in real-time using cell live microscopy. The area under the growth curve (AUC) was calculated for each concentration and used to calculate IC50 values (C).
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