Abstract
AbstractPartial least squares discriminant analysis (PLS‐DA) provides a sound statistical basis for the selection, from an original 9605‐data set, of a limited number of gene transcripts most effective in discriminating different tumour histotypes. The potentialities of the PLS‐DA approach are pointed out by its ability to identify genes which, according to current knowledge, are associated with cancer development. Moreover, PLS‐DA was able to identify MUC 13 and S100P proteins as candidates for the development of new colon cancer diagnostics. Various genes with unknown function and ESTs (expressed sequence tags), found to be important in discriminating genes for colon, leukaemia, renal and central nervous system tumour cells, are indicated as deserving high priority in future molecular studies. Copyright © 2004 John Wiley & Sons, Ltd.
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