title: Factors influencing the discrimination and classification of prostate cancer cell lines by FTIR microspectroscopy.
abstract: In this study we obtained Fourier transform infrared (FTIR) spectra of fixed prostate cell lines of differing types as well as the primary epithelial cells from benign prostatic hyperplasia (BPH). Results showed that by using multivariate chemometric analysis it was possible to discriminate and classify these cell lines, which gave rise to sensitivity and specificity values of >94% and >98%, respectively. Following on from these results the possible influences of different factors on the discrimination and classification of the prostate cell lines were examined. Firstly, the effect of using different growth media during cell culturing was investigated, with results indicating that this did not influence chemometric discrimination. Secondly, differences in the nucleus-to-cytoplasm (N/C) ratio were examined, and it was concluded that this factor was not the main reason for the discrimination and classification of the prostate cancer (CaP) cell lines. In conclusion, given the fact that neither growth media nor N/C ratio could totally explain the classification it is likely that actual biochemical differences between the cell lines is the major contributing factor.
authors.affiliation: School of Chemical Engineering and Analytical Science, Manchester Interdisciplinary Biocentre, University of Manchester, 131 Princess Street, Manchester, UK M1 7DN.
authors.forename: T J
authors.initials: TJ
authors.lastname: Harvey
authors.forename: E
authors.initials: E
authors.lastname: Gazi
authors.forename: A
authors.initials: A
authors.lastname: Henderson
authors.forename: R D
authors.initials: RD
authors.lastname: Snook
authors.forename: N W
authors.initials: NW
authors.lastname: Clarke
authors.forename: M
authors.initials: M
authors.lastname: Brown
authors.forename: P
authors.initials: P
authors.lastname: Gardner
mesh_terms: D045744:Cell Line, Tumor; D002467:Cell Nucleus / Q000378:metabolism; D003470:Culture Media; D003593:Cytoplasm / Q000378:metabolism; D016002:Discriminant Analysis; D006801:Humans; D008297:Male; D015999:Multivariate Analysis; D025341:Principal Component Analysis; D011471:Prostatic Neoplasms / Q000378:metabolism / Q000473:pathology*; D017550:Spectroscopy, Fourier Transform Infrared
chemical_list: D003470:Culture Media