id sid tid token lemma pos w0892805b86 1 1 chemoresistance chemoresistance NOUN w0892805b86 1 2 is be AUX w0892805b86 1 3 a a DET w0892805b86 1 4 leading lead VERB w0892805b86 1 5 cause cause NOUN w0892805b86 1 6 of of ADP w0892805b86 1 7 breast breast NOUN w0892805b86 1 8 cancer cancer NOUN w0892805b86 1 9 related relate VERB w0892805b86 1 10 deaths death NOUN w0892805b86 1 11 . . PUNCT w0892805b86 2 1 therefore therefore ADV w0892805b86 2 2 , , PUNCT w0892805b86 2 3 understanding understand VERB w0892805b86 2 4 the the DET w0892805b86 2 5 molecular molecular ADJ w0892805b86 2 6 basis basis NOUN w0892805b86 2 7 for for ADP w0892805b86 2 8 chemoresistance chemoresistance NOUN w0892805b86 2 9 is be AUX w0892805b86 2 10 essential essential ADJ w0892805b86 2 11 for for ADP w0892805b86 2 12 novel novel ADJ w0892805b86 2 13 therapeutic therapeutic ADJ w0892805b86 2 14 advancement advancement NOUN w0892805b86 2 15 and and CCONJ w0892805b86 2 16 improving improve VERB w0892805b86 2 17 patient patient ADJ w0892805b86 2 18 outcome outcome NOUN w0892805b86 2 19 . . PUNCT w0892805b86 3 1 the the DET w0892805b86 3 2 adenomatous adenomatous ADJ w0892805b86 3 3 polyposis polyposis NOUN w0892805b86 3 4 coli coli NOUN w0892805b86 3 5 ( ( PUNCT w0892805b86 3 6 apc apc X w0892805b86 3 7 ) ) PUNCT w0892805b86 3 8 tumor tumor NOUN w0892805b86 3 9 suppressor suppressor NOUN w0892805b86 3 10 is be AUX w0892805b86 3 11 lost lose VERB w0892805b86 3 12 in in ADP w0892805b86 3 13 up up ADP w0892805b86 3 14 to to PART w0892805b86 3 15 70 70 NUM w0892805b86 3 16 % % NOUN w0892805b86 3 17 of of ADP w0892805b86 3 18 sporadic sporadic ADJ w0892805b86 3 19 breast breast NOUN w0892805b86 3 20 cancer cancer NOUN w0892805b86 3 21 ; ; PUNCT w0892805b86 3 22 however however ADV w0892805b86 3 23 , , PUNCT w0892805b86 3 24 little little ADJ w0892805b86 3 25 is be AUX w0892805b86 3 26 known know VERB w0892805b86 3 27 about about ADP w0892805b86 3 28 how how SCONJ w0892805b86 3 29 apc apc PUNCT w0892805b86 3 30 loss loss NOUN w0892805b86 3 31 contributes contribute VERB w0892805b86 3 32 to to ADP w0892805b86 3 33 chemoresistance chemoresistance NOUN w0892805b86 3 34 . . PUNCT w0892805b86 4 1 using use VERB w0892805b86 4 2 mammary mammary ADJ w0892805b86 4 3 tumor tumor NOUN w0892805b86 4 4 cells cell NOUN w0892805b86 4 5 isolated isolate VERB w0892805b86 4 6 from from ADP w0892805b86 4 7 the the DET w0892805b86 4 8 apcmin/+ apcmin/+ PROPN w0892805b86 4 9 mouse mouse NOUN w0892805b86 4 10 crossed cross VERB w0892805b86 4 11 to to ADP w0892805b86 4 12 the the DET w0892805b86 4 13 polyoma polyoma ADJ w0892805b86 4 14 middle middle PROPN w0892805b86 4 15 t t PROPN w0892805b86 4 16 antigen antigen NOUN w0892805b86 4 17 ( ( PUNCT w0892805b86 4 18 pymt pymt PROPN w0892805b86 4 19 ) ) PUNCT w0892805b86 4 20 transgenic transgenic NOUN w0892805b86 4 21 model model NOUN w0892805b86 4 22 , , PUNCT w0892805b86 4 23 we we PRON w0892805b86 4 24 made make VERB w0892805b86 4 25 the the DET w0892805b86 4 26 novel novel ADJ w0892805b86 4 27 observation observation NOUN w0892805b86 4 28 that that SCONJ w0892805b86 4 29 apc apc NOUN w0892805b86 4 30 loss loss NOUN w0892805b86 4 31 decreased decrease VERB w0892805b86 4 32 doxorubicin doxorubicin NOUN w0892805b86 4 33 ( ( PUNCT w0892805b86 4 34 dox)-induced dox)-induce VERB w0892805b86 4 35 apoptosis apoptosis NOUN w0892805b86 4 36 . . PUNCT w0892805b86 5 1 we we PRON w0892805b86 5 2 hypothesized hypothesize VERB w0892805b86 5 3 that that SCONJ w0892805b86 5 4 apc apc NOUN w0892805b86 5 5 loss loss NOUN w0892805b86 5 6 prevents prevent VERB w0892805b86 5 7 dox dox PROPN w0892805b86 5 8 - - PUNCT w0892805b86 5 9 mediated mediate VERB w0892805b86 5 10 apoptosis apoptosis NOUN w0892805b86 5 11 through through ADP w0892805b86 5 12 : : PUNCT w0892805b86 5 13 1 1 X w0892805b86 5 14 ) ) PUNCT w0892805b86 5 15 reduced reduce VERB w0892805b86 5 16 intracellular intracellular ADJ w0892805b86 5 17 dox dox NOUN w0892805b86 5 18 and and CCONJ w0892805b86 5 19 2 2 X w0892805b86 5 20 ) ) PUNCT w0892805b86 5 21 alterations alteration NOUN w0892805b86 5 22 in in ADP w0892805b86 5 23 dna dna NOUN w0892805b86 5 24 damage damage NOUN w0892805b86 5 25 and and CCONJ w0892805b86 5 26 repair repair NOUN w0892805b86 5 27 with with ADP w0892805b86 5 28 the the DET w0892805b86 5 29 goal goal NOUN w0892805b86 5 30 to to PART w0892805b86 5 31 discover discover VERB w0892805b86 5 32 new new ADJ w0892805b86 5 33 combination combination NOUN w0892805b86 5 34 therapies therapy NOUN w0892805b86 5 35 for for ADP w0892805b86 5 36 apc apc NOUN w0892805b86 5 37 - - PUNCT w0892805b86 5 38 deficient deficient ADJ w0892805b86 5 39 cancer.to cancer.to NUM w0892805b86 5 40 investigate investigate VERB w0892805b86 5 41 the the DET w0892805b86 5 42 intracellular intracellular ADJ w0892805b86 5 43 dox dox NOUN w0892805b86 5 44 accumulation accumulation NOUN w0892805b86 5 45 , , PUNCT w0892805b86 5 46 we we PRON w0892805b86 5 47 measured measure VERB w0892805b86 5 48 the the DET w0892805b86 5 49 amount amount NOUN w0892805b86 5 50 of of ADP w0892805b86 5 51 dox dox PROPN w0892805b86 5 52 intracellular intracellular ADJ w0892805b86 5 53 fluorescence fluorescence NOUN w0892805b86 5 54 and and CCONJ w0892805b86 5 55 found find VERB w0892805b86 5 56 decreased decrease VERB w0892805b86 5 57 intracellular intracellular ADJ w0892805b86 5 58 dox dox NOUN w0892805b86 5 59 retention retention NOUN w0892805b86 5 60 with with ADP w0892805b86 5 61 apc apc NOUN w0892805b86 5 62 loss loss NOUN w0892805b86 5 63 . . PUNCT w0892805b86 6 1 the the DET w0892805b86 6 2 atp atp ADV w0892805b86 6 3 - - PUNCT w0892805b86 6 4 binding bind VERB w0892805b86 6 5 cassette cassette NOUN w0892805b86 6 6 ( ( PUNCT w0892805b86 6 7 abc abc PROPN w0892805b86 6 8 ) ) PUNCT w0892805b86 6 9 transporters transporter NOUN w0892805b86 6 10 , , PUNCT w0892805b86 6 11 multidrug multidrug NOUN w0892805b86 6 12 resistance resistance NOUN w0892805b86 6 13 1 1 NUM w0892805b86 6 14 ( ( PUNCT w0892805b86 6 15 mdr1 mdr1 PROPN w0892805b86 6 16 ) ) PUNCT w0892805b86 6 17 and and CCONJ w0892805b86 6 18 multidrug multidrug VERB w0892805b86 6 19 resistance resistance NOUN w0892805b86 6 20 protein protein NOUN w0892805b86 6 21 1 1 NUM w0892805b86 6 22 ( ( PUNCT w0892805b86 6 23 mrp1 mrp1 PROPN w0892805b86 6 24 ) ) PUNCT w0892805b86 6 25 , , PUNCT w0892805b86 6 26 are be AUX w0892805b86 6 27 well well ADV w0892805b86 6 28 established establish VERB w0892805b86 6 29 to to PART w0892805b86 6 30 contribute contribute VERB w0892805b86 6 31 to to ADP w0892805b86 6 32 drug drug NOUN w0892805b86 6 33 resistance resistance NOUN w0892805b86 6 34 through through ADP w0892805b86 6 35 drug drug NOUN w0892805b86 6 36 efflux efflux NOUN w0892805b86 6 37 and and CCONJ w0892805b86 6 38 are be AUX w0892805b86 6 39 overexpressed overexpresse VERB w0892805b86 6 40 in in ADP w0892805b86 6 41 tumor tumor NOUN w0892805b86 6 42 initiating initiate VERB w0892805b86 6 43 cells cell NOUN w0892805b86 6 44 ( ( PUNCT w0892805b86 6 45 tics tic NOUN w0892805b86 6 46 ) ) PUNCT w0892805b86 6 47 . . PUNCT w0892805b86 7 1 we we PRON w0892805b86 7 2 showed show VERB w0892805b86 7 3 that that SCONJ w0892805b86 7 4 mmtv mmtv PROPN w0892805b86 7 5 - - PUNCT w0892805b86 7 6 pymt;apcmin/+ pymt;apcmin/+ PROPN w0892805b86 7 7 cells cell NOUN w0892805b86 7 8 have have VERB w0892805b86 7 9 an an DET w0892805b86 7 10 increased increase VERB w0892805b86 7 11 tic tic ADJ w0892805b86 7 12 population population NOUN w0892805b86 7 13 . . PUNCT w0892805b86 8 1 to to PART w0892805b86 8 2 investigate investigate VERB w0892805b86 8 3 this this DET w0892805b86 8 4 decreased decrease VERB w0892805b86 8 5 intracellular intracellular ADJ w0892805b86 8 6 dox dox NOUN w0892805b86 8 7 accumulation accumulation NOUN w0892805b86 8 8 , , PUNCT w0892805b86 8 9 we we PRON w0892805b86 8 10 found find VERB w0892805b86 8 11 increased increase VERB w0892805b86 8 12 expression expression NOUN w0892805b86 8 13 of of ADP w0892805b86 8 14 mdr1 mdr1 PROPN w0892805b86 8 15 and and CCONJ w0892805b86 8 16 mrp1 mrp1 PROPN w0892805b86 8 17 . . PUNCT w0892805b86 9 1 mdr1 mdr1 PROPN w0892805b86 9 2 inhibition inhibition NOUN w0892805b86 9 3 and and CCONJ w0892805b86 9 4 mrp1 mrp1 NOUN w0892805b86 9 5 silencing silencing NOUN w0892805b86 9 6 restored restore VERB w0892805b86 9 7 dox dox PROPN w0892805b86 9 8 intracellular intracellular ADJ w0892805b86 9 9 retention retention NOUN w0892805b86 9 10 , , PUNCT w0892805b86 9 11 decreased decrease VERB w0892805b86 9 12 the the DET w0892805b86 9 13 tic tic ADJ w0892805b86 9 14 population population NOUN w0892805b86 9 15 , , PUNCT w0892805b86 9 16 and and CCONJ w0892805b86 9 17 increased increase VERB w0892805b86 9 18 dox dox NOUN w0892805b86 9 19 - - PUNCT w0892805b86 9 20 induced induce VERB w0892805b86 9 21 cleaved cleaved ADJ w0892805b86 9 22 caspase caspase NOUN w0892805b86 9 23 3 3 NUM w0892805b86 9 24 expression expression NOUN w0892805b86 9 25 in in ADP w0892805b86 9 26 apc apc ADJ w0892805b86 9 27 - - PUNCT w0892805b86 9 28 deficient deficient ADJ w0892805b86 9 29 cells cell NOUN w0892805b86 9 30 . . PUNCT w0892805b86 10 1 dual dual PROPN w0892805b86 10 2 mdr1 mdr1 PROPN w0892805b86 10 3 / / SYM w0892805b86 10 4 mrp1 mrp1 NOUN w0892805b86 10 5 inhibition inhibition NOUN w0892805b86 10 6 did do AUX w0892805b86 10 7 not not PART w0892805b86 10 8 have have VERB w0892805b86 10 9 an an DET w0892805b86 10 10 additive additive ADJ w0892805b86 10 11 effect effect NOUN w0892805b86 10 12 . . PUNCT w0892805b86 11 1 increased increase VERB w0892805b86 11 2 mdr1 mdr1 PROPN w0892805b86 11 3 activity activity NOUN w0892805b86 11 4 was be AUX w0892805b86 11 5 specific specific ADJ w0892805b86 11 6 to to ADP w0892805b86 11 7 apc apc NOUN w0892805b86 11 8 loss loss NOUN w0892805b86 11 9 , , PUNCT w0892805b86 11 10 which which PRON w0892805b86 11 11 was be AUX w0892805b86 11 12 shown show VERB w0892805b86 11 13 to to PART w0892805b86 11 14 be be AUX w0892805b86 11 15 mediated mediate VERB w0892805b86 11 16 through through ADP w0892805b86 11 17 signal signal ADJ w0892805b86 11 18 transducer transducer NOUN w0892805b86 11 19 and and CCONJ w0892805b86 11 20 activator activator NOUN w0892805b86 11 21 of of ADP w0892805b86 11 22 transcription transcription NOUN w0892805b86 11 23 3 3 NUM w0892805b86 11 24 ( ( PUNCT w0892805b86 11 25 stat3 stat3 NOUN w0892805b86 11 26 ) ) PUNCT w0892805b86 11 27 . . PUNCT w0892805b86 12 1 to to PART w0892805b86 12 2 investigate investigate VERB w0892805b86 12 3 the the DET w0892805b86 12 4 effect effect NOUN w0892805b86 12 5 of of ADP w0892805b86 12 6 apc apc ADJ w0892805b86 12 7 loss loss NOUN w0892805b86 12 8 on on ADP w0892805b86 12 9 dna dna PROPN w0892805b86 12 10 damage damage NOUN w0892805b86 12 11 repair repair NOUN w0892805b86 12 12 pathways pathway NOUN w0892805b86 12 13 , , PUNCT w0892805b86 12 14 we we PRON w0892805b86 12 15 measured measure VERB w0892805b86 12 16 the the DET w0892805b86 12 17 amount amount NOUN w0892805b86 12 18 of of ADP w0892805b86 12 19 dox dox NOUN w0892805b86 12 20 - - PUNCT w0892805b86 12 21 induced induce VERB w0892805b86 12 22 dna dna NOUN w0892805b86 12 23 damage damage NOUN w0892805b86 12 24 in in ADP w0892805b86 12 25 apc apc ADJ w0892805b86 12 26 - - PUNCT w0892805b86 12 27 deficient deficient ADJ w0892805b86 12 28 cells cell NOUN w0892805b86 12 29 . . PUNCT w0892805b86 13 1 there there PRON w0892805b86 13 2 was be VERB w0892805b86 13 3 decreased decrease VERB w0892805b86 13 4 dox dox NOUN w0892805b86 13 5 - - PUNCT w0892805b86 13 6 induced induce VERB w0892805b86 13 7 dna dna NOUN w0892805b86 13 8 damage damage NOUN w0892805b86 13 9 and and CCONJ w0892805b86 13 10 damage damage NOUN w0892805b86 13 11 signaling signal VERB w0892805b86 13 12 mediated mediate VERB w0892805b86 13 13 through through ADP w0892805b86 13 14 ataxia ataxia NOUN w0892805b86 13 15 - - PUNCT w0892805b86 13 16 telangiectasia telangiectasia PROPN w0892805b86 13 17 mutated mutate VERB w0892805b86 13 18 ( ( PUNCT w0892805b86 13 19 atm atm NOUN w0892805b86 13 20 ) ) PUNCT w0892805b86 13 21 activation activation NOUN w0892805b86 13 22 with with ADP w0892805b86 13 23 apc apc NOUN w0892805b86 13 24 loss loss NOUN w0892805b86 13 25 . . PUNCT w0892805b86 14 1 inhibiting inhibit VERB w0892805b86 14 2 atm atm NOUN w0892805b86 14 3 or or CCONJ w0892805b86 14 4 dna dna PROPN w0892805b86 14 5 - - PUNCT w0892805b86 14 6 pk pk PROPN w0892805b86 14 7 increased increase VERB w0892805b86 14 8 dox dox NOUN w0892805b86 14 9 - - PUNCT w0892805b86 14 10 induced induce VERB w0892805b86 14 11 apoptosis apoptosis NOUN w0892805b86 14 12 . . PUNCT w0892805b86 15 1 in in ADP w0892805b86 15 2 addition addition NOUN w0892805b86 15 3 , , PUNCT w0892805b86 15 4 we we PRON w0892805b86 15 5 found find VERB w0892805b86 15 6 that that SCONJ w0892805b86 15 7 apc apc NOUN w0892805b86 15 8 loss loss NOUN w0892805b86 15 9 affects affect VERB w0892805b86 15 10 topo topo NOUN w0892805b86 15 11 iiα iiα NOUN w0892805b86 15 12 activity activity NOUN w0892805b86 15 13 decreasing decrease VERB w0892805b86 15 14 topo topo NOUN w0892805b86 15 15 iiα iiα NOUN w0892805b86 15 16 / / SYM w0892805b86 15 17 dna dna PROPN w0892805b86 15 18 complexes complex NOUN w0892805b86 15 19 . . PUNCT w0892805b86 16 1 taken take VERB w0892805b86 16 2 together together ADV w0892805b86 16 3 , , PUNCT w0892805b86 16 4 apc apc PROPN w0892805b86 16 5 loss loss NOUN w0892805b86 16 6 decreased decrease VERB w0892805b86 16 7 intracellular intracellular ADJ w0892805b86 16 8 dox dox NOUN w0892805b86 16 9 accumulation accumulation NOUN w0892805b86 16 10 through through ADP w0892805b86 16 11 increased increase VERB w0892805b86 16 12 efflux efflux NOUN w0892805b86 16 13 and and CCONJ w0892805b86 16 14 decreased decrease VERB w0892805b86 16 15 dox dox NOUN w0892805b86 16 16 - - PUNCT w0892805b86 16 17 induced induce VERB w0892805b86 16 18 dna dna NOUN w0892805b86 16 19 damage damage NOUN w0892805b86 16 20 . . PUNCT w0892805b86 17 1 mdr1 mdr1 PROPN w0892805b86 17 2 and and CCONJ w0892805b86 17 3 atm atm NOUN w0892805b86 17 4 inhibition inhibition NOUN w0892805b86 17 5 restore restore VERB w0892805b86 17 6 dox dox NOUN w0892805b86 17 7 sensitivity sensitivity NOUN w0892805b86 17 8 specifically specifically ADV w0892805b86 17 9 with with ADP w0892805b86 17 10 apc apc NOUN w0892805b86 17 11 loss loss NOUN w0892805b86 17 12 demonstrating demonstrate VERB w0892805b86 17 13 the the DET w0892805b86 17 14 potential potential ADJ w0892805b86 17 15 use use NOUN w0892805b86 17 16 of of ADP w0892805b86 17 17 combination combination NOUN w0892805b86 17 18 therapy therapy NOUN w0892805b86 17 19 to to PART w0892805b86 17 20 overcome overcome VERB w0892805b86 17 21 chemoresistance chemoresistance NOUN w0892805b86 17 22 . . PUNCT