Macrophage chemotactic factor (MCF) produced by a human T cell hybridoma clone

Cellular Immunology
N YoshizukaT Osawa

Abstract

A human T cell hybridoma clone, D6-18, producing high levels of macrophage chemotactic factor (MCF) was established by the emetine-actinomycin D selection method. MCF was found to be present not only in the culture medium but also in the cell lysate of D6-18 cells. The secretion of the MCF from D6-18 cells was effectively inhibited by disodium cromoglycate, which is an inhibitor of the degranulation of mast cells, suggesting that MCF is stored in granules. The MCF of D6-18 cells was purified from the sonicated cell lysate by ion-exchange chromatographies and high-performance liquid chromatography. The amino acid sequence of the purified MCF was revealed to be WLGREDGSE or WLGRQDGSE. The synthetic peptide WLGREDGSE showed chemotactic activity against guinea pig macrophages and human monocytes at the concentration of about 10(-8) M.

References

Mar 7, 1969·Science·P A WardJ R David

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Citations

Mar 3, 2009·Hybridoma·Reza GolestaniSeyed Mohammad Moazzeni
Nov 1, 2011·Journal of Biochemistry·Kazuo Yamamoto, Tatsuro Irimura
Aug 1, 1991·Lymphokine and Cytokine Research·S OkiT Osawa
Apr 15, 1991·Cellular Immunology·Y SasakiW L Epstein

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