Method of diagnosing neoplasms

Abstract

The present invention relates generally to nucleic acid molecules, the RNA and protein expression profiles of which are indicative of the onset, predisposition to the onset and/or progression of a neoplasm. More particularly, the present invention is directed to nucleic acid molecules, the expression profiles of which are indicative of the onset and/or progression of a large intestine neoplasm, such as an adenoma or an adenocarcinoma. The expression profiles of the present invention are useful in a range of applications including, but not limited to, those relating to the diagnosis and/or monitoring of colorectal neoplasms, such as colorectal adenocarcinomas. Accordingly, in a related aspect the present invention is directed to a method of screening a subject for the onset, predisposition to the onset and/or progression of a neoplasm by screening for modulation in the expression profile of one or more nucleic acid molecule markers.

1 . A method of screening for the onset or predisposition to the onset of a large intestine neoplasm or monitoring the progress of a neoplasm in an individual, said method comprising measuring the level of expression of one or more genes or transcripts selected from:
 (i) the gene, genes or transcripts detected by Affymetrix probeset IDs:
 205513_at; and/or 
   (ii) TCN1   in a biological sample from said individual wherein a higher level of expression of the genes or transcripts of group (i) and/or group (ii) relative to control levels is indicative of a neoplastic large intestine cell or a cell predisposed to the onset of a neoplastic state.   
     
     
         2 . The method according to  claim 1  wherein said control level is a non-neoplastic level. 
     
     
         3 . The method according to  claim 1  wherein said neoplastic cell is an adenoma or an adenocarcinoma. 
     
     
         4 . The method according to  claim 1  wherein said cell is a colorectal cell. 
     
     
         5 . The method according to  claim 1  wherein said biological sample is a faecal sample, enema wash, surgical resection, tissue biopsy or blood sample. 
     
     
         6 . The method according to  claim 1  wherein said level of expression is mRNA expression or protein expression. 
     
     
         7 . The method according to  claim 1  wherein said biological sample is a fecal sample, enema wash, surgical resection, tissue biopsy or blood sample. 
     
     
         8 . The method according to  claim 1  wherein said individual is a human.