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Energy decomposition and waterswapping analysis to investigate the SNP associated DPD mediated 5-FU resistance.
Verma, H; Doshi, J; Narendra, G; Raju, B; Singh, P K; Silakari, O.
Afiliación
  • Verma H; Molecular Modelling Laboratory (MML), Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, India.
  • Doshi J; BioInsight Solutions, Mumbai, India.
  • Narendra G; Molecular Modelling Laboratory (MML), Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, India.
  • Raju B; Molecular Modelling Laboratory (MML), Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, India.
  • Singh PK; Integrative Physiology and Pharmacology, Institute of Biomedicine, Faculty of Medicine, University of Turku, Turku, Finland.
  • Silakari O; Molecular Modelling Laboratory (MML), Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, India.
SAR QSAR Environ Res ; 34(1): 39-64, 2023 Jan.
Article en En | MEDLINE | ID: mdl-36779961
5-fluorouracil is an essential component of systemic chemotherapy for colon, breast, head, and neck cancer patients. However, tumoral overexpression of the dihydropyrimidine dehydrogenase has rendered 5-FU clinically ineffective by inactivating it to 5'-6'-dihydro fluorouracil. The responses to 5-FU in terms of efficacy and toxicity greatly differ depending upon the population group, because of variability in the DPD activity levels. In the current study, key active site amino acids involved in the 5-FU inactivation were investigated by modelling the 3D structure of human DPD in a complex with 5-FU. The identified amino acids were analyzed for their possible missense mutations available in dbSNP database. Out of 12 missense SNPs, four were validated either by sequencing in the 1000 Genomes project or frequency/genotype data. The recorded validated missense SNPs were further considered to analyze the effect of their respective alterations on 5-FU binding. Overall findings suggested that population bearing the Glu611Val DPD mutation (rs762523739) is highly vulnerable to 5-FU resistance. From the docking, electrostatic complementarity, dynamics, and energy decomposition analyses it was found that the above mutation showed superior scores than the wild DPD -5FU complex. Therefore, prescribing prodrug NUC-3373 or DPD inhibitors (Gimeracil/3-Cyano-2,6-Dihydroxypyridines) as adjuvant therapy may overcome the 5-FU resistance.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Polimorfismo de Nucleótido Simple / Dihidrouracilo Deshidrogenasa (NADP) Tipo de estudio: Prognostic_studies / Risk_factors_studies Límite: Humans Idioma: En Revista: SAR QSAR Environ Res Asunto de la revista: SAUDE AMBIENTAL Año: 2023 Tipo del documento: Article País de afiliación: India Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Polimorfismo de Nucleótido Simple / Dihidrouracilo Deshidrogenasa (NADP) Tipo de estudio: Prognostic_studies / Risk_factors_studies Límite: Humans Idioma: En Revista: SAR QSAR Environ Res Asunto de la revista: SAUDE AMBIENTAL Año: 2023 Tipo del documento: Article País de afiliación: India Pais de publicación: Reino Unido