Journal Article

DKFZ-2018-01217

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Pathway analysis of genetic variants in folate-mediated one-carbon metabolism-related genes and survival in a prospectively followed cohort of colorectal cancer patients.

Ose, J. ; Botma, A.DKFZ* ; Balavarca, Y.DKFZ* ; Buck, K.DKFZ* ; Scherer, D. ; Habermann, N.DKFZ* ; Beyerle, J.DKFZ* ; Pfütze, K.DKFZ* ; Seibold, P.DKFZ* ; Kap, E. J.DKFZ* ; Benner, A.DKFZ* ; Jansen, L.DKFZ* ; Butterbach, K.DKFZ* ; Hoffmeister, M.DKFZ* ; Brenner, H.DKFZ* ; Ulrich, A. ; Schneider, M. ; Chang-Claude, J.DKFZ* ; Burwinkel, B.DKFZ* ; Ulrich, C. M.

2018
Wiley Hoboken, NJ

This record in other databases:

Please use a persistent id in citations: doi:10.1002/cam4.1407

Abstract: Folate-mediated one-carbon metabolism (FOCM) is a key pathway essential for nucleotide synthesis, DNA methylation, and repair. This pathway is a critical target for 5-fluorouracil (5-FU), which is predominantly used for colorectal cancer (CRC) treatment. A comprehensive assessment of polymorphisms in FOCM-related genes and their association with prognosis has not yet been performed. Within 1,739 CRC cases aged ≥30 years diagnosed from 2003 to 2007 (DACHS study), we investigated 397 single nucleotide polymorphisms (SNPs) and 50 candidates in 48 FOCM-related genes for associations with overall- (OS) and disease-free survival (DFS) using multiple Cox regression (adjusted for age, sex, stage, grade, BMI, and alcohol). We investigated effect modification by 5-FU-based chemotherapy and assessed pathway-specific effects. Correction for multiple testing was performed using false discovery rates (FDR). After a median follow-up time of 5.0 years, 585 patients were deceased. For one candidate SNP in MTHFR and two in TYMS, we observed significant inverse associations with OS (MTHFR: rs1801133, C677T: HRhet  = 0.81, 95% CI: 0.67-0.97; TYMS: rs1001761: HRhet  = 0.82, 95% CI: 0.68-0.99 and rs2847149: HRhet  = 0.82, 95% CI: 0.68-0.99). After FDR correction, one polymorphism in paraoxonase 1 (PON1; rs3917538) was significantly associated with OS (HRhet  = 1.28, 95% CI: 1.07-1.53; HRhzv  = 2.02, 95% CI:1.46-2.80; HRlogAdd  = 1.31, pFDR  = 0.01). Adjusted pathway analyses showed significant associations for pyrimidine biosynthesis (P = 0.04) and fluorouracil drug metabolism (P < 0.01) with significant gene-chemotherapy interactions, including PON1 rs3917538. This study supports the concept that FOCM-related genes could be associated with CRC survival and may modify effects of 5-FU-based chemotherapy in genes in pyrimidine and fluorouracil metabolism, which are relevant targets for therapeutic response and prognosis in CRC. These results require confirmation in additional clinical studies.

---

Contributing Institute(s):

1. Präventive Onkologie (G110)
2. Molekulare Epidemiologie (C080)
3. C020 Epidemiologie von Krebs (C020)
4. C060 Biostatistik (C060)
5. C070 Klinische Epidemiologie und Alternf. (C070)

Research Program(s):

1. 313 - Cancer risk factors and prevention (POF3-313) (POF3-313)

Appears in the scientific report 2018

---

Database coverage:
; ; ; BIOSIS Previews ; Current Contents - Clinical Medicine ; DOAJ Seal ; IF < 5 ; JCR ; NCBI Molecular Biology Database ; SCOPUS ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

---