Negative feedback-defective PRPS1 mutants drive thiopurine resistance in relapsed childhood ALL.

Lentiviral-mediated overexpression of NT5C2 R238W (a relapse specific variant) in Reh cells resulted in resistance against thiopurines (mercaptopurine and thioguanine) compared to NT5C2 wildtype overe… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

PRPS1 exons were sequenced in the diagnosis and relapse samples of 358 B-Cell Childhood Acute Lymphoblastic Leukemia relapse patients (138 Chinese and 220 German). PRPS1 A190T was detected only at rel… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Treatment with the GART inhibitor, Lometrexol (de novo purine synthesis inhibitor), sensitized Reh cells overexpressing PRPS1 A190T to mercaptopurine (6-MP) as evidenced by significant reduction of th… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of PRPS1 A190T in Reh cells resulted in significant resistance against mercaptopurine (6-MP) and thioguanine (6-TG) as indicated by IC50 increases and reduced apopto… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of PRPS1 A190T in Reh cells resulted no difference in response to Methotrexate, Cytarabine, Daunorubicin, or L-Asparginase compared to empty vector and wildtype PRPS… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

PRPS1 exons were sequenced in the diagnosis and relapse samples of 358 B-Cell Childhood Acute Lymphoblastic Leukemia relapse patients (138 Chinese and 220 German). PRPS1 A190V was detected only at rel… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of PRPS1 A190V in Reh cells resulted in significant resistance against mercaptopurine (6-MP) and thioguanine (6-TG) as indicated by IC50 increases and reduced apopto… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of PRPS1 A87T in Reh cells resulted in similar cytotoxic response (IC50 and apoptosis %) compared to controls (empty vector and wildtype PRPS1 overexpression) after … (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of PRPS1 C77S in Reh cells resulted in similar cytotoxic response to controls (empty vector and overexpression of known reduced-function PRPS1 mutants) after exposur… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of PRPS1 D139G in Reh cells resulted in similar cytotoxic response to controls (empty vector and overexpression of known reduced-function PRPS1 mutants) after exposu… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

PRPS1 exons were sequenced in the diagnosis and relapse samples of 358 B-Cell Childhood Acute Lymphoblastic Leukemia relapse patients (138 Chinese and 220 German). PRPS1 D183E was detected only at rel… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of PRPS1 D183E in Reh cells resulted in significant resistance against mercaptopurine (6-MP) and thioguanine (6-TG) as indicated by IC50 increases and reduced apopto… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of PRPS1 D183E in Reh cells resulted no difference in response to Methotrexate, Cytarabine, Daunorubicin, or L-Asparginase compared to empty vector and wildtype PRPS… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of D183H in Reh cells resulted in significant resistance against mercaptopurine (6-MP) and thioguanine (6-TG) as indicated by IC50 increases and reduced apoptosis co… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

PRPS1 exons were sequenced in the diagnosis and relapse samples of 358 B-Cell Childhood Acute Lymphoblastic Leukemia relapse patients (138 Chinese and 220 German). PRPS1 G174E was detected only at rel… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of PRPS1 G174E in Reh cells resulted in significant resistance against mercaptopurine (6-MP) and thioguanine (6-TG) as indicated by IC50 increases and reduced apopto… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of PRPS1 I72V in Reh cells resulted in similar cytotoxic response to controls (empty vector and overexpression of known reduced-function PRPS1 mutants) after exposur… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

PRPS1 exons were sequenced in the diagnosis and relapse samples of 358 B-Cell Childhood Acute Lymphoblastic Leukemia relapse patients (138 Chinese and 220 German). PRPS1 K176N was detected only at rel… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of PRPS1 K176N in Reh cells resulted in significant resistance against mercaptopurine (6-MP) and thioguanine (6-TG) as indicated by IC50 increases and reduced apopto… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of PRPS1 K176N in Reh cells resulted no difference in response to Methotrexate, Cytarabine, Daunorubicin, or L-Asparginase compared to empty vector and wildtype PRPS… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

PRPS1 exons were sequenced in the diagnosis and relapse samples of 358 B-Cell Childhood Acute Lymphoblastic Leukemia relapse patients (138 Chinese and 220 German). PRPS1 L191F was detected only at rel… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of PRPS1 L191F in Reh cells resulted in sensitivity to cytarabine (Ara-C) treatment as indicated by reduced cell viability and IC50 compared to empty vector and wild… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of PRPS1 L191F in Reh cells resulted in significant resistance against mercaptopurine (6-MP) and thioguanine (6-TG) as indicated by IC50 increases and reduced apopto… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of PRPS1 L191F in Reh cells resulted no difference in response to Methotrexate, Daunorubicin, or L-Asparginase compared to empty vector and wildtype PRPS1 overexpres… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of PRPS1 M115T in Reh cells resulted in similar cytotoxic response (IC50 and apoptosis %) compared to controls (empty vector and wildtype PRPS1 overexpression) after… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Sequencing revealed relapse specific PRPS1 mutations in 24/358 (6.7%) relapsed childhood B-ALL cases derived from multiple cohorts. In the Chinese cohort, 18/138 (13%) cases harbored relapse specific … (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

PRPS1 exons were sequenced in the diagnosis and relapse samples of 358 B-Cell Childhood Acute Lymphoblastic Leukemia relapse patients (138 Chinese and 220 German). PRPS1 N114D was detected only at rel… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of PRPS1 N114D in Reh cells resulted in significant resistance against mercaptopurine (6-MP) and thioguanine (6-TG) as indicated by IC50 increases and reduced apopto… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

PRPS1 exons were sequenced in the diagnosis and relapse samples of 358 B-Cell Childhood Acute Lymphoblastic Leukemia relapse patients (138 Chinese and 220 German). PRPS1 N144S was detected only at rel… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of PRPS1 N144S in Reh cells resulted in sensitivity to cytarabine (Ara-C) treatment as indicated by reduced cell viability and IC50 compared to empty vector and wild… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of PRPS1 N144S in Reh cells resulted in significant resistance against mercaptopurine (6-MP) and thioguanine (6-TG) as indicated by IC50 increases and reduced apopto… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of PRPS1 N144S in Reh cells resulted no difference in response to Methotrexate, Daunorubicin, or L-Asparginase compared to empty vector and wildtype PRPS1 overexpres… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

PRPS1 exons were sequenced in the diagnosis and relapse samples of 358 B-Cell Childhood Acute Lymphoblastic Leukemia relapse patients (138 Chinese and 220 German). PRPS1 S103I was detected only at rel… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of PRPS1 S103I in Reh cells resulted in significant resistance against mercaptopurine (6-MP) and thioguanine (6-TG) as indicated by IC50 increases and reduced apopto… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

PRPS1 exons were sequenced in the diagnosis and relapse samples of 358 B-Cell Childhood Acute Lymphoblastic Leukemia relapse patients (138 Chinese and 220 German). PRPS1 S103N was detected only at rel… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of PRPS1 S103N in Reh cells resulted in significant resistance against mercaptopurine (6-MP) and thioguanine (6-TG) as indicated by IC50 increases and reduced apopto… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of PRPS1 S103N in Reh cells resulted no difference in response to Methotrexate, Cytarabine, Daunorubicin, or L-Asparginase compared to empty vector and wildtype PRPS… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

PRPS1 exons were sequenced in the diagnosis and relapse samples of 358 B-Cell Childhood Acute Lymphoblastic Leukemia relapse patients (138 Chinese and 220 German). PRPS1 S103T was detected only at rel… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Treatment with the GART inhibitor, Lometrexol (de novo purine synthesis inhibitor), sensitized Reh cells overexpressing PRPS1 S103T to 6-MP as evidenced by significant reduction of the cell line's 6-M… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of PRPS1 S103T in Reh cells resulted in significant resistance against mercaptopurine (6-MP) and thioguanine (6-TG) as indicated by IC50 increases and reduced apopto… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of PRPS1 S103T in Reh cells resulted no difference in response to Methotrexate, Cytarabine, Daunorubicin, or L-Asparginase compared to empty vector and wildtype PRPS… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

PRPS1 exons were sequenced in the diagnosis and relapse samples of 358 B-Cell Childhood Acute Lymphoblastic Leukemia relapse patients (138 Chinese and 220 German). PRPS1 T303S was detected only at rel… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of PRPS1 T303S in Reh cells resulted in significant resistance against mercaptopurine (6-MP) and thioguanine (6-TG) as indicated by IC50 increases and reduced apopto… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of PRPS1 T303S in Reh cells resulted no difference in response to Methotrexate, Cytarabine, Daunorubicin, or L-Asparginase compared to empty vector and wildtype PRPS… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of PRPS1 V53A in Reh cells resulted in similar cytotoxic response to controls (empty vector and overexpression of known reduced-function PRPS1 mutants) after exposur… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC

Lentiviral-mediated overexpression of PRPS1 Y311C in Reh cells resulted in similar cytotoxic response to controls (empty vector and overexpression of known reduced-function PRPS1 mutants) after exposu… (full text at CIViC)

PMID 25962120 · Li et al., 2015 · Open in CIViC