@article{3056233,
    title = "Lack of association of CD44-rs353630 and CHI3L2-rs684559 with pancreatic ductal adenocarcinoma survival",
    author = "Gentiluomo, M. and Corradi, C. and Vanella, G. and Johansen, A.Z. and Strobel, O. and Szentesi, A. and Milanetto, A.C. and Hegyi, P. and Kupcinskas, J. and Tavano, F. and Neoptolemos, J.P. and Bozzato, D. and Hackert, T. and Pezzilli, R. and Johansen, J.S. and Costello, E. and Mohelnikova-Duchonova, B. and van Eijck, C.H.J. and Talar-Wojnarowska, R. and Hansen, C.P. and Darvasi, E. and Chen, I.M. and Cavestro, G.M. and Soucek, P. and Piredda, L. and Vodicka, P. and Gazouli, M. and Arcidiacono, P.G. and Canzian, F. and Campa, D. and Capurso, G.",
    journal = "Scientific Reports",
    year = "2021",
    volume = "11",
    number = "1",
    publisher = "Institute of Geographic Sciences and Natural Resources Research",
    issn = "2045-2322",
    doi = "10.1038/s41598-021-87130-0",
    keywords = "CD44 protein, human;  CHI3L2 protein, human;  chitinase;  hyaluronic acid binding protein;  tumor marker, aged;  clinical trial;  female;  genetics;  human;  Kaplan Meier method;  male;  middle aged;  mortality;  multicenter study;  pancreas carcinoma;  pancreas tumor;  single nucleotide polymorphism, Aged;  Biomarkers, Tumor;  Carcinoma, Pancreatic Ductal;  Chitinases;  Female;  Humans;  Hyaluronan Receptors;  Kaplan-Meier Estimate;  Male;  Middle Aged;  Pancreatic Neoplasms;  Polymorphism, Single Nucleotide",
    abstract = "Although pancreatic ductal adenocarcinoma (PDAC) survival is poor, there are differences in patients’ response to the treatments. Detection of predictive biomarkers explaining these differences is of the utmost importance. In a recent study two genetic markers (CD44-rs353630 and CHI3L2-rs684559) were reported to be associated with survival after PDAC resection. We attempted to replicate the associations in 1856 PDAC patients (685 resected with stage I/II) from the PANcreatic Disease ReseArch (PANDoRA) consortium. We also analysed the combined effect of the two genotypes in order to compare our results with what was previously reported. Additional stratified analyses considering TNM stage of the disease and whether the patients received surgery were also performed. We observed no statistically significant associations, except for the heterozygous carriers of CD44-rs353630, who were associated with worse OS (HR = 5.01; 95% CI 1.58–15.88; p = 0.006) among patients with stage I disease. This association is in the opposite direction of those reported previously, suggesting that data obtained in such small subgroups are hardly replicable and should be considered cautiously. The two polymorphisms combined did not show any statistically significant association. Our results suggest that the effect of CD44-rs353630 and CHI3L2-rs684559 cannot be generalized to all PDAC patients. © 2021, The Author(s)."
}