PMID- 19003396 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20110714 LR - 20211020 IS - 0920-9069 (Print) IS - 1573-0778 (Electronic) IS - 0920-9069 (Linking) VI - 34 IP - 3 DP - 2000 Nov TI - Growing colorectal tumors: minimizing microbial and stromal competition and assessing in vitro selection pressures. PG - 205-11 LID - 10.1023/A:1008131428992 [doi] AB - Development of primary colorectal cancer cell lines ishampered by contamination from regional microbes, overgrowthof stromal cells, and purported genetic drift from selectionpressures in vitro. We initiated 32 primaryadenocarcinomas, 3 recurrences and 6 distant metastases incell culture. Twelve cell lines from eleven tumors weregenerated (26.8%) overall. Nine of 32 primary tumorsyielded 10 cell lines, 5 were lost to contamination, 13 wereoverwhelmed by stromal cells, and 5 demonstrated no growth.Addition of isobutyl methyl xanthine (IBMX) to culturelimited fibroblastoid growth. There was no associationbetween tumor location (p = 0.535, mid-P), degree ofdifferentiation (p = 0.850, mid-P) or clinicopathologic stage(p = 0.400, mid-P), and the ability of cells to becomeestablished in culture. The majority of cell lines hadsimilar nuclear DNA content and expression of cell-surfaceantigens compared with their parent tumors. Microbialcontamination and stromal cell overgrowth present thegreatest obstacle to capturing a representative bank ofcolon tumors in vitro. FAU - Farrell, T M AU - Farrell TM AD - Departments of Surgery and Pathology, Dartmouth-Hitchcock Medical Center, Lebanon, NH, U.S.A.. FAU - Pettengill, O S AU - Pettengill OS FAU - Longnecker, D S AU - Longnecker DS FAU - Cate, C C AU - Cate CC FAU - Cohn, K H AU - Cohn KH LA - eng PT - Journal Article PL - United States TA - Cytotechnology JT - Cytotechnology JID - 8807027 PMC - PMC3449633 EDAT- 2008/11/13 09:00 MHDA- 2008/11/13 09:01 PMCR- 2001/11/01 CRDT- 2008/11/13 09:00 PHST- 2008/11/13 09:00 [pubmed] PHST- 2008/11/13 09:01 [medline] PHST- 2008/11/13 09:00 [entrez] PHST- 2001/11/01 00:00 [pmc-release] AID - 276709 [pii] AID - 10.1023/A:1008131428992 [doi] PST - ppublish SO - Cytotechnology. 2000 Nov;34(3):205-11. doi: 10.1023/A:1008131428992.