Research Article

Modulation of the Ribonucleotide Reductase-Antimetabolite Drug Interaction in Cancer Cell Lines

Table 3

Endogenous RRM1 levels and gemcitabine, pemetrexed, and carboplatin efficacy in 26 NSCLC cell lines.

Cell LineATCC #Histological Subtype p53 mutation ( = s t o p )  based on CCDS11118.1 cod on 72 either proline or arginineK-ras mutationDoubling Time (hr)RRM1RRM2aRRM2bERCC1TSTP53P38MCM2Gem IC50 (uM)Pem IC50 (uM)Carbo IC50 (uM)

A549CLL-185AD-BACwtG12S482.301.081.232.490.900.530.910.830.0100.10341.003
ADLC5M2ADwtwt242.421.790.302.400.660.120.581.220.0790.0446.678
EPLC65HSQwtwt472.831.070.553.921.230.121.220.970.0190.0397.590
H125CRL-5801AD/SQ N 2 3 9 wt701.652.531.053.640.600.000.920.87 > 10000.37439.678
H1299CRL-5803NSCLC-NOShomozygous deletionwt461.922.432.181.310.910.002.011.370.0240.23627.273
H1355CRL-5865ADE258KG13C362.042.321.083.681.120.580.540.940.0060.35530.651
H157CRL-5802SQ E 2 9 8 G12R582.222.801.160.730.730.031.651.010.0360.43321.766
H1648CRL-5882ADframe shift codon 35; D 4 2 wt572.261.141.320.270.080.001.551.58 > 1000 > 100019.730
H1650CRL-5883ADwtwt490.831.581.071.090.080.020.970.810.0200.05314.535
H1703CRL-5889ADwtwt420.912.451.450.730.660.040.641.020.0020.17328.421
H1975CRL-5908ADR273Hwt391.942.241.050.130.151.011.251.050.1450.05119.250
H2122CRL-5985ADQ16L; C176FG12C721.041.420.610.900.050.370.950.92 > 10000.05456.217
H2172CRL-5930NSCLC-NOSframe shift codon 72; V 1 2 2 wt451.990.292.201.210.000.000.941.000.4350.53310.800
H2228CRL-5935AD Q 3 3 1 wt500.680.120.251.530.090.550.631.180.0230.03911.036
H226CRL-5826SQwtwt762.300.453.280.790.240.451.630.967.491 > 100037.317
H23CRL-5800ADM246IG12C451.001.001.001.001.001.001.001.000.0080.12521.220
H292CRL-1848MEwtwt312.111.901.132.080.930.611.260.730.0110.02630.326
H322CRL-5806AD-BACR248Lwt361.261.651.061.650.380.720.761.020.0160.11841.434
H358CRL-5807AD-BAChomozygous deletionG12C741.611.361.223.800.290.002.021.200.1350.03023.634
H441HTB-174ADR158LG12V581.861.914.490.990.050.472.771.870.0330.09323.545
H460HTB-177LCwtQ61H352.472.131.301.150.840.760.790.940.0530.18385.373
H522CRL-5810ADframe shift codon 191 with deletion of Pwt1081.083.170.737.041.100.221.740.89 > 1000 > 100021.298
H596HTB-178AD/SQG245Cwt491.611.981.003.000.530.681.250.930.0310.01228.626
H650CRL-5835ADK164Nwt831.251.341.571.550.130.660.770.91 > 1000 > 100032.422
H661HTB-183LCR158L; S215Iwt471.341.050.862.060.880.540.881.230.024 > 100057.253
H820HTB-181ADT284Pwt686.883 > 100032.116

AD: adenocarcinoma, AD-BAC: adenocarcinoma with bronchoalveolar features, LC: large cell carcinoma, SQ: squamous cell carcinoma, ME: mucoepidermoid bronchial gland carcinoma, AD/SQ: mixed adenosquamous cell carcinoma, NSCLC-NOS: nonsmall cell lung cancer, not otherwise specified. IC50 values are the means of at least three experiments; 3–6 wells per experiment and dose level; 4,000 cells per well; 96 hr exposure.