TYMP and cancer: Thus, expression of TP by cancer cells was shown in carcinomas of the breast (Fox et al, 1995a; Toi et al, 1995), lung (Koukourakis et al, 1997), head and neck (Giatromanolaki et al, 1998) and stomach (Giatromanolaki et al, 2000), whereas a predominant stromal cell TP expression was shown in colorectal (Takebayashi et al, 1996) and endometrial carcinomas (Sivridis et al, 1999), particularly at the invading tumour front.