ArticleCancer chemotherapy and pharmacology2024
Gene polymorphisms of TACR1 serve as the potential pharmacogenetic predictors of response to the neurokinin-1 receptor antagonist-based antiemetic regimens: a candidate-gene association study in breast cancer patients.
Article in Cancer chemotherapy and pharmacology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 8 citations in OpenAlex.
- Anti-Inflammatory Activities of Ocotillol Isolated fromPharmaceuticals (Basel, Switzerland) · 2026Article
- ETV1 genetic polymorphisms as a candidate prognosis biomarker of Gastrointestinal stromal tumor.Cancer chemotherapy and pharmacology · 2025Article
- Identifying the potential mediators of pathological complete response to neoadjuvant chemotherapy among TACR1 gene polymorphisms: a study on breast cancer patients.Breast cancer research and treatment · 2025Article
- Personalized Prophylactic Antiemetic Regimens for Control of Chemotherapy-Induced Nausea and Vomiting by Pharmacogenetic Analysis of Three Receptor Genes:JCO precision oncology · 2025Article
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6 authors at 3 institutions in 2 countries.
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Abstract
purposeThe current candidate gene association study aims to investigate tag SNPs from the TACR1 gene as pharmacogenetic predictors of response to the antiemetic guidelines-recommended, NK-1 receptor antagonist-based, triple antiemetic regimens.
methodsA set of eighteen tag SNPs of TACR1 were genotyped in breast cancer patients receiving anthracycline and cyclophosphamide (with/without docetaxel) applying real-time PCR-HRMA. Data analysis for 121 ultimately enrolled patients was initiated by defining haplotype blocks using PHASE v.2.1. The association of each tag SNP and haplotype alleles with failure to achieve the defined antiemetic regimen efficacy endpoints was tested using PLINK (v.1.9 and v.1.07, respectively) based on the logistic regression, adjusting for the previously known chemotherapy-induced nausea and vomiting (CINV) prognostic factors. All reported p-values were corrected using the permutation test (n = 100,000).
resultsFour variants of rs881, rs17010730, rs727156, and rs3755462, as well as haplotypes containing the mentioned variants, were significantly associated with failure to achieve at least one of the defined efficacy endpoints. Variant annotation via in-silico studies revealed that the non-seed sequence variant, rs881, is located in the miRNA (hsa-miR-613) binding site. The other three variants or a variant in complete linkage disequilibrium with them overlap a region of high H3K9ac-promoter-like signature or regions of high enhancer-like signature in the brain or gastrointestinal tissue.
conclusionPlaying an essential role in regulating TACR1 expression, gene polymorphisms of TACR1 serve as the potential pharmacogenetic predictors of response to the NK-1 receptor antagonist-based, triple antiemetic regimens. If clinically approved, modifying the NK-1 receptor antagonist dose leads to better management of CINV in risk-allele carriers.
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