Detection of cell surface and intracellular antigens by human monoclonal antibodies. Hybrid cell lines derived from lymphocytes of patients with malignant melanoma

A. N. Houghton, H. Brooks, Richard J Cote, M. C. Taormina, H. F. Oettgen, L. J. Old

Research output: Contribution to journalArticle

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Abstract

This study represents an initial attempt to analyze the humoral immune reactions of patients with malignant melanoma by hybridoma methodology. Using lymphocytes from regional lymph nodes, peripheral blood and tumor infiltrates, 158 fusions were performed with SKO-007 (human myeloma line), LICR-LON-HMy2 (LICR-2), GM 4672 (human lymphoblastoid lines), or NS-1 (mouse myeloma line). Fusion of lymph node lymphocytes with NS-1 resulted in a 3-4 times higher frequency of clones than fusion with LICR-2, and a 10 times higher frequency than fusion with SKO-007 or GM 4672. In the case of peripheral blood lymphocytes, fusion with NS-1 gave >25 times higher frequency than fusion with SKO-007 or GM 4672. In the case of peripheral blood lymphocytes, fusion with NS-1 gave >25 times higher frequency of clones than fusion with LICR-2 or SKO-007. Production of human μ, γ, or α heavy chains was detected in 50-80% of wells containing growing clones, and the levels of immunoglobulin ranged from 0.3 μg to 40 μg/ml. NS-1-derived clones could be easily subcultured, while LICR-2 and SKO-007 clones grew more slowly on subculturing. In this study, Ig secretion appeared to be a more stable property of LICR-2-derived clones than NS-1-derived clones. A panel of 20 human cancer cell lines was used to screen 771 Ig-secreting cultures for antibody to cell surface or intracellular antigens. Reactivity with cell surface antigens was found infrequently (6 cultures), whereas reactivity with intracellular antigens was more common (27 cultures). A new cell surface antigen with properties of a glycolipid was defined with an IgM monoclonal antibody secreted by a tetraploid cell derived from a fusion of LICR-2 with lymphocytes from the axillary lymph node of a patient with melanoma. The hybrid cell line has been subcloned four times and secretes 5 μg IgM/ml. The antigen detected by this IgM antibody was found on 5 of 23 melanoma cell lines and 12 of 30 epithelial cancer cell lines. No reactions were found with 11 cultures derived from normal cells. Stable cell lines secreting human antibody that detected nuclei, nucleoli, cytoskeletal elements, Golgi complex, or other cytoplasmic components were also isolated in this study. One of these antibodies detected an intracellular antigen that is restricted to cells of neuroectodermal derivation, and a second antibody reacted primarily with cells of epithelial origin. Using these methods to isolate and analyze human monoclonal antibody, it should now be possible to define the repertorie of the humoral immume response to melanoma.

Original languageEnglish
Pages (from-to)53-65
Number of pages13
JournalJournal of Experimental Medicine
Volume158
Issue number1
StatePublished - Sep 8 1983
Externally publishedYes

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Hybrid Cells
Surface Antigens
Melanoma
Clone Cells
Monoclonal Antibodies
Lymphocytes
Cell Line
Antibodies
Immunoglobulin M
Antigens
Lymph Nodes
Epithelial Cells
Neoplasms
Tetraploidy
Glycolipids
Hybridomas
Golgi Apparatus
4-(2-(4-isopropylbenzamido)ethoxy)benzoic acid
Immunoglobulins

ASJC Scopus subject areas

  • Immunology

Cite this

Detection of cell surface and intracellular antigens by human monoclonal antibodies. Hybrid cell lines derived from lymphocytes of patients with malignant melanoma. / Houghton, A. N.; Brooks, H.; Cote, Richard J; Taormina, M. C.; Oettgen, H. F.; Old, L. J.

In: Journal of Experimental Medicine, Vol. 158, No. 1, 08.09.1983, p. 53-65.

Research output: Contribution to journalArticle

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AU - Brooks, H.

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AU - Oettgen, H. F.

AU - Old, L. J.

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