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학술저널
저자정보
이지원 (삼성서울병원) 배준설 (삼성서울병원) 김진호 (서울대학교병원) 조희원 (성균관대학교 의과대학 소아과학교실) 주희영 (삼성서울병원) 유건희 (성균관대학교) 구홍회 (성균관대학교) 우숙영 (삼성서울병원) 김선우 (삼성서울병원) 성기웅 (삼성서울병원)
저널정보
대한암학회 Cancer Research and Treatment Cancer Research and Treatment 제54권 제1호
발행연도
2022.1
수록면
259 - 268 (10page)
DOI
10.4143/crt.2021.010

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Purpose We performed this study to determine whether the degree of neutropenia after the first chemotherapy cycle can be used as a surrogate marker of individual susceptibility to chemotherapeutic agents affecting treatment outcome in patients with neuroblastoma.Materials and Methods The study included 313 patients who received the first cycle chemotherapy with a CEDC (cisplatin+etoposide+doxorubicin+cyclophosphamide) regimen and had absolute neutrophil count (ANC) data available. The cumulative incidences of progression and treatment-related mortality (TRM) were estimated. To identify genetic variations associated with the ANC, a genome-wide association study (GWAS) was performed.Results An ANC of 32.5/μL was determined as the cutoff point to categorize patients into the good and poor prognosis subgroups in terms of progression. Patients with a high nadir ANC had a higher cumulative incidence of progression than those with a low nadir ANC (p < 0.001). In multivariate analysis, high nadir ANC, age, bone marrow involvement, and unfavorable histology were poor prognostic factors. With regard to the TRM, patients with a low nadir ANC (ANC < 51.0/μL) had a higher cumulative incidence of TRM than those with a high nadir ANC (p=0.010). In GWAS, single-nucleotide polymorphisms of LPHN2 and CRHR1 were significantly associated with the nadir ANC.Conclusion In neuroblastoma patients, the degree of neutropenia after the first chemotherapy cycle can be used as a surrogate marker to predict an individual’s susceptibility to chemotherapeutic agents. Tailoring of treatment based on the degree of neutropenia needs to be considered.

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