TY - JOUR
T1 - A prospective study of the immune system activation biomarker neopterin and colorectal cancer risk
AU - Aleksandrova, Krasimira
AU - Chuang, Shu Chun
AU - Boeing, Heiner
AU - Zuo, Hui
AU - Tell, Grethe S.
AU - Pischon, Tobias
AU - Jenab, Mazda
AU - Bueno-De-Mesquita, Bas
AU - Vollset, Stein Emil
AU - Midttun, Øivind
AU - Ueland, Per Magne
AU - Fedirko, Veronika
AU - Johansson, Mattias
AU - Weiderpass, Elisabete
AU - Severi, Gianluca
AU - Racine, Antoine
AU - Boutron-Ruault, Marie Christine
AU - Kaaks, Rudolf
AU - Kühn, Tilman
AU - Tjønneland, Anne
AU - Overvad, Kim
AU - Quirós, J. Ramón
AU - Jakszyn, Paula
AU - Sánchez, María José
AU - Dorronsoro, Miren
AU - Chirlaque, Maria Dolores
AU - Ardanaz, Eva
AU - Khaw, Kay Tee
AU - Wareham, Nicholas J.
AU - Travis, Ruth C.
AU - Trichopoulou, Antonia
AU - Lagiou, Pagona
AU - Trichopoulos, Dimitrios
AU - Palli, Domenico
AU - Sieri, Sabina
AU - Tumino, Rosario
AU - Panico, Salvatore
AU - May, Anne M.
AU - Palmqvist, Richard
AU - Ljuslinder, Ingrid
AU - Kong, So Yeon J.
AU - Freisling, Heinz
AU - Gunter, Marc J.
AU - Lu, Yunxia
AU - Cross, Amanda J.
AU - Riboli, Elio
AU - Vineis, Paolo
N1 - Publisher Copyright:
© 2015 The Author. Published by Oxford University Press. All rights reserved.
PY - 2015/4/1
Y1 - 2015/4/1
N2 - Background: Neopterin may be relevant for colorectal cancer (CRC) development, as a biomarker of cellular immune activity exerting pleiotropic effects on cellular ageing, oxidative stress, and inflammation. So far, the association between prediagnostic neopterin and colon and rectal cancer risk has not been evaluated in human populations. Methods: A nested case-control study was conducted within the European Prospective Investigation into Cancer and Nutrition cohort using data on plasma concentrations of total neopterin (T-N, sum of neopterin and 7,8-dihydroneopterin) in 830 incident CRC case patients (561 colon and 269 rectal) matched within risk sets to 830 control participants. A subsequent replication study used data from the Hordaland Health Study, where 173 CRC case patients have been diagnosed among 6594 healthy participants over 12 years of follow-up. Results: After multivariable adjustment for a priori chosen CRC risk factors, a "U-shaped" association of T-N with CRC was revealed. Compared with the second quintile of the T-N distribution, the relative risks for the first, third, fourth, and fifth quintiles were 2.37 (95% CI = 1.66 to 3.39), 1.24 (95% CI = 0.87 to 1.77), 1.55 (95% CI = 1.08 to 2.22), and 2.31 (95% CI = 1.63 to 3.27), respectively. Replication of these associations within the Hordaland Health Study yielded similar results. No differences have been observed when the associations were explored by colon and rectal cancer site (two-sided P difference =. 87) and after excluding case patients diagnosed within the first four follow-up years. Conclusions: These novel findings provide evidence of the role of both suppressed and activated cell-mediated immunity as reflected by prediagnostic T-N concentrations in the development of CRC.
AB - Background: Neopterin may be relevant for colorectal cancer (CRC) development, as a biomarker of cellular immune activity exerting pleiotropic effects on cellular ageing, oxidative stress, and inflammation. So far, the association between prediagnostic neopterin and colon and rectal cancer risk has not been evaluated in human populations. Methods: A nested case-control study was conducted within the European Prospective Investigation into Cancer and Nutrition cohort using data on plasma concentrations of total neopterin (T-N, sum of neopterin and 7,8-dihydroneopterin) in 830 incident CRC case patients (561 colon and 269 rectal) matched within risk sets to 830 control participants. A subsequent replication study used data from the Hordaland Health Study, where 173 CRC case patients have been diagnosed among 6594 healthy participants over 12 years of follow-up. Results: After multivariable adjustment for a priori chosen CRC risk factors, a "U-shaped" association of T-N with CRC was revealed. Compared with the second quintile of the T-N distribution, the relative risks for the first, third, fourth, and fifth quintiles were 2.37 (95% CI = 1.66 to 3.39), 1.24 (95% CI = 0.87 to 1.77), 1.55 (95% CI = 1.08 to 2.22), and 2.31 (95% CI = 1.63 to 3.27), respectively. Replication of these associations within the Hordaland Health Study yielded similar results. No differences have been observed when the associations were explored by colon and rectal cancer site (two-sided P difference =. 87) and after excluding case patients diagnosed within the first four follow-up years. Conclusions: These novel findings provide evidence of the role of both suppressed and activated cell-mediated immunity as reflected by prediagnostic T-N concentrations in the development of CRC.
UR - http://www.scopus.com/inward/record.url?scp=84930701125&partnerID=8YFLogxK
U2 - 10.1093/jnci/djv010
DO - 10.1093/jnci/djv010
M3 - Article
C2 - 25713165
AN - SCOPUS:84930701125
SN - 0027-8874
VL - 107
JO - Journal of the National Cancer Institute
JF - Journal of the National Cancer Institute
IS - 4
ER -