Impact of SOD2, PNPLA3, ABCC1, CBR1 And ABCG2 Variants Upon Toxicities of Induction Therapy In Childhood Acute Lymphoblastic Leukemia

Abstract Chemotherapy related toxicities have been the major factor limiting the success of acute lymphoblastic leukemia (ALL) induction therapy. Several factors, including the pharmacogenetics of asparagenase and anthracyclines, could contribute to difference in treatment outcome in ALL. We investigated the significance of variations in genes that are involved in hepatic toxicity and cardiotoxicity in acute lymphoblastic leukemia (ALL). Genotyping of SOD2 (rs4880), PNPL3 (rs738409) and ABCC1 (rs4148350), CBR1 (rs9024) and ABCG2 (rs2231142) was performed by Tetra-ARMS PCR-based technique to evaluate the genotype-phenotype correlation. Our results showed only the minor allele G of SOD2 rs4880 increase the risk of hepatic toxicity [OR=2.63 (1.42-4.84), P=<.05] while minor alleles of other SNPs showed protective impact. However, the genetic contrast analysis showed a recessive form of SOD2 rs4880 [OR=7.82 (3.86-15.85), P=<0.05] and PNPLA3 I148M [OR=5.82 (3.43-9.87), P=<0.05] variants whereas dominant genotype of ABCC1 rs4148350 [OR=2.52 (1.55-4.10), P=<0.05] significantly predisposes hepatotoxicity. Furthermore, heterozygous form of ABCG2 rs2231142 [OR=5.25 (1.84-14.95), P=<0.05] and recessive genotype of 3′UTR variant CBR1 rs9024 [OR=2.31 (1.31-4.07), P=<0.05] were strongly associated with cardiotoxicity. The information obtained from these genetic variations could offer biomarkers for individualization of therapeutic intervention in ALL.

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Pharmacogenetics of induction therapy-related toxicities in childhood acute lymphoblastic leukemia patients treated with UKALL 2003 protocol

Scientific Reports ◽

10.1038/s41598-021-03208-9 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Sara Aslam ◽

Sonia Ameer ◽

N. A. Shabana ◽

Mehboob Ahmed

Keyword(s):

Acute Lymphoblastic Leukemia ◽

Induction Therapy ◽

Cardiac Toxicity ◽

Lymphoblastic Leukemia ◽

Phenotype Correlation ◽

Recessive Form ◽

Minor Alleles ◽

Contrast Analysis ◽

Heterozygous Form ◽

Dominant Genotype

AbstractChemotherapy related toxicities have been the major factor limiting the success of acute lymphoblastic leukemia (ALL) induction therapy. Several factors, including the pharmacogenetics of asparaginase and anthracyclines, could contribute to difference in treatment outcome in ALL. We investigated the significance of variations in genes involved in hepatic and cardiac toxicity in acute lymphoblastic leukemia (ALL). Genotyping of SOD2 (rs4880), PNPL3 (rs738409) and ABCC1 (rs4148350), CBR1 (rs9024) and ABCG2 (rs2231142) was performed by Tetra-ARMS PCR-based technique to evaluate the genotype–phenotype correlation. Our results showed only minor allele G of SOD2 rs4880 increase the risk of hepatic toxicity [OR 2.63 (1.42–4.84), P = < 0.05] while minor alleles of other SNPs showed protective impact. However, the genetic contrast analysis showed a recessive form of SOD2 rs4880 [OR 7.82 (3.86–15.85), P = < 0.05] and PNPLA3 I148M [OR 5.82 (3.43–9.87), P = < 0.05] variants whereas dominant genotype of ABCC1 rs4148350 [OR 2.52 (1.55–4.10), P = < 0.05] significantly predisposes hepatotoxicity. Furthermore, heterozygous form of ABCG2 rs2231142 [OR 5.25 (1.84–14.95), P = < 0.05] and recessive genotype of 3′UTR variant CBR1 rs9024 [OR 2.31 (1.31–4.07), P = < 0.05] were strongly associated with cardiotoxicity. The information obtained from these genetic variations could offer biomarkers for individualization of therapeutic intervention in ALL.

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