Metastatic behavior and cell surface properties of HT-29 human colon carcinoma variant cells selected for their differential expression of sialyl-dimeric Le(x)-antigen.

Published

Journal Article

Immunochemical studies of human colorectal carcinoma with various monoclonal antibodies against Le(X)-related carbohydrate antigens previously revealed that the amount of sialyl-dimeric Le(X) antigen (NeuAc alpha 2-3Gal beta 1-4(Fuc alpha 1-3)GlcNAc beta 1-3Gal beta 1-4(Fuc alpha 1-3)GlcNAc beta 1-R: SLX) associated with metastatic lesions was greater than in the primary tumors. To assess whether an experimental model can be used to study the direct relationship between this carbohydrate antigen and the tumor cell's metastatic behavior, we selected variant cells with increased surface SLX from established human colon carcinoma cell line HT-29. The cells in the upper 5% or lower 5% population in fluorescence intensity after reacting with a monoclonal antibody, FH6, were retrieved separately by a fluorescence-activated cell sorter and propagated. After three- or four-times selection, we obtained stable cell lines with low and high cell surface SLX antigens (HT-29 M1 and HT-29 M2, respectively). Binding of monoclonal antibody FH6 was detected to glycolipids extracted from HT-29 M2 cells but not from HT-29 M1 cells. Glycoprotein components having reactivity with monoclonal antibody FH6 were below the detectable level. HT-29 M2 cells injected intrasplenically into nude mice showed a slightly reduced incidence of metastasis to lung, liver and lymph nodes than did HT-29 M1 cells. Subsequently we found that SLX antigen was not detectable by immunohistochemical examination of these tumor cells grown in nude mice. Re-established cell line from nude mice xenografts expressed SLX antigen in vitro.

Full Text

Duke Authors

Cited Authors

  • Matsushita, Y; Hoff, SD; Nudelman, ED; Otaka, M; Hakomori, S; Ota, DM; Cleary, KR; Irimura, T

Published Date

  • May 1991

Published In

Volume / Issue

  • 9 / 3

Start / End Page

  • 283 - 299

PubMed ID

  • 1676354

Pubmed Central ID

  • 1676354

Electronic International Standard Serial Number (EISSN)

  • 1573-7276

International Standard Serial Number (ISSN)

  • 0262-0898

Digital Object Identifier (DOI)

  • 10.1007/bf01753731

Language

  • eng