2019
DOI: 10.1038/s41598-019-45808-6
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GSTM1, GSTT1 and GSTP1 Ile105Val polymorphisms in outcomes of head and neck squamous cell carcinoma patients treated with cisplatin chemoradiation

Abstract: Cisplatin (CDDP) combined with radiotherapy (RT) is employed in head and neck squamous cell carcinoma (HNSCC) with variable toxicities and clinical response. Glutathione S-transferases (GSTs) participate in CDDP excretion from cells, and genes encoding GSTs, GSTM1 , GSTT1 and GSTP1 , are polymorphic in humans. This prospective study aimed to evaluate the roles of GSTM1 , GSTT1 , and GS… Show more

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Cited by 13 publications
(21 citation statements)
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“…According to the data of Table 2, the association between late ototoxicity and the GSTP1 polymorphism is very controversial. Both the homozygous mutant [14,26,32] and the wild genotype [28,30,33] were associated with ototoxicity [26,28] or a protective effect [14,30,32,33], or no effect was found [23,27,29,31].…”
Section: Discussionmentioning
confidence: 98%
“…According to the data of Table 2, the association between late ototoxicity and the GSTP1 polymorphism is very controversial. Both the homozygous mutant [14,26,32] and the wild genotype [28,30,33] were associated with ototoxicity [26,28] or a protective effect [14,30,32,33], or no effect was found [23,27,29,31].…”
Section: Discussionmentioning
confidence: 98%
“…It has been documented that those individuals carrying both the mutant alleles for the GSTP1 IIe 105 Val polymorphism are more susceptible to inflammatory symptoms. 33 The decrease in the activity of GSTP1 in lung cancer subjects harboring the heterozygous or mutant genotype may result in high exposure to platinum-based compounds and thus proportional increase towards drug toxicity because of reduced GSTP1 mediated catalyzed reactions, thus leading to reduced metabolism of platinum-based drugs.…”
Section: Discussionmentioning
confidence: 99%
“…Moreover, during treatment, drug resistance may develop, necessitating higher doses to achieve former antitumor effects; however, higher doses may exaggerate severe side effects [ 21 ]. Accordingly, combination treatment with various drugs with distinct mechanisms is a therapeutic strategy that may potentiate the therapeutic efficacy of each drug [ 22 , 23 , 24 , 25 ]. In view of these problems, combined treatment with other anticancer agents is an effective strategy to overcome those limitations for clinical application.…”
Section: Discussionmentioning
confidence: 99%