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Derivation
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LS411N is a colorectal carcinoma cell line isolated in 1985 from a primary tumor biopsy of a Dukes' B, poorly differentiated cecal carcinoma. The cells obtained after passage in nude mice are referred to as LS411N cells.
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Antigen Expression
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carcinoembryonic antigen (CEA); ICAM-1; MHC class I positive; MHC Class II (HLA DR, DQ, DP) negative
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Genes Expressed
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transforming growth factor beta 1 (TGF, 189 pg per 106 cells per 24 hours),carcinoembryonic antigen (CEA); ICAM-1; MHC class I positive; MHC Class II (HLA DR, DQ, DP) negative
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Effects
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Yes, forms tumors in nude mice
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Comments
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The LS411 cell line was found to be contaminated with mycoplasma, and was passed through nude mice to clear the cells of mycoplasma.
A culture submitted to the ATCC in September 1994 was found to be contaminated with mycoplasma, and progeny were cured by a 21 day treatment with BM Cycline.
Approximately 20% of LS411N cells express surface carcinoembryonic antigen (CEA).
The cells express low levels of ICAM-1 HLA class I antigen beta-2-microglobulin.
The cells secrete low levels of latent TGF-beta 1.
TGF-beta 1 and TGF betaÄ2 are do not inhibit the proliferation of LS411N cells.
Colony forming efficiency was 25% in methylcellulose medium.
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