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The original histological characteristics of the colon carcinoma were maintained throughout transplantation in nude mice.

After 23 passages in athymic mice, the T84 cell line was established. These cells grow to confluence as monolayers and exhibit tight junctions and desmosomes between adjacent cells.

They have receptors for many peptide hormones and neurotransmitters and maintain vectorial electrolyte transport.

This line exhibits tight junctions, and desmosomes between adjacent cells.

The cells are positive for keratin by immunoperoxidase staining.

1. Remove and discard culture medium.
2. Briefly rinse the cell layer with 0.25% (w/v) Trypsin- 0.53 mM EDTA solution to remove all traces of serum that contains trypsin inhibitor.
3. Add 2.0 to 3.0 mL of Trypsin-EDTA solution to flask and observe cells under an inverted microscope until cell layer is dispersed (usually within 5 to 15 minutes).
   Note: To avoid clumping do not agitate the cells by hitting or shaking the flask while waiting for the cells to detach. Cells that are difficult to detach may be placed at 37°C to facilitate dispersal.
4. Add 6.0 to 8.0 mL of complete growth medium and aspirate cells by gently pipetting.
5. Add appropriate aliquots of the cell suspension to new culture vessels.
6. Incubate cultures at 37°C.

Dharmsathaphorn K, et al. A human colonic tumor cell line that maintains vectorial electrolyte transport. Am. J. Physiol. 246: G204-G208, 1984. PubMed: 6141741

Murakami H, Masui H. Hormonal control of human colon carcinoma cell growth in serum-free medium. Proc. Natl. Acad. Sci. USA 77: 3464-3468, 1980. PubMed: 6932031

White LJ, et al. Attachment and entry of recombinant norwalk virus capsids to cultured human and animal cell lines. J. Virol. 70: 6589-6597, 1996. PubMed: 8794293

Nucleotide (GenBank) : BE519991 EST-TIG1 cDNA from T84 cells Homo sapiens cDNA, mRNA sequence.