| Abstract |
A new cell line, Mm-2T, derived from the thymus of an Indian muntjac was
established, which is known to have a small number of chromosomes.
Morphologically, the Mm-2T cells showed an epithilial appearance. About 1
month after the initiation of culture no growing cells were detected.
However. After about 2 years and a half surviving cells began to
proliferate abruptly, and finally, were established as the strain Mm-2T.
For 2 years the cells have been showed constant proliferation rate.
Karyotype is not diploidy, but more than 80% of the chromosomes have been
kept to be 7 or 6 in number. This chromosome number may be the fewest in
the mammalian cell lines. The doubling time of the Mm-2T cells was
ascertained 67.5 hr in an average by cinemicrography.
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