PMID: 2496193May 1, 1989Paper

Differential induction of macrophage GSIB4-binding activity

Journal of Leukocyte Biology
D R TaborR F Jacobs

Abstract

Activated macrophages display a terminal galactopyranosyl group on their membrane surface that binds the lectin Griffonia simplicifolia-IB4 (GSIB4). Using FITC-conjugated GSIB4, we examined the induction and subsequent expression of this corresponding marker on peritoneal macrophages from normal (NMO) and LPS-treated (LPS MO) mice. Although the percentage of fresh LPS MO explants that bound GSIB4 was always higher when compared to the NMO counterparts, marker expression on the latter was readily enhanced by culturing the cells in vitro either alone or with stimuli. Moreover, we found that an increase in this activity was promoted by either nonspecific phagocytosis of latex beads, or gamma-interferon (gamma-IFN) treatment. Further investigation showed that a prerequisite sequence of signal delivery to the macrophages was associated with maximal expression of the GSIB4 binding. When gamma-IFN treatment preceded latex bead ingestion, maximum GSIB4 binding occurred. Data obtained from using short-term (1 hr) and long-term (24 hr) exposure to latex beads showed that metabolic processing of induction signals was required to enhance the response over time. This yielded better GSIB4-binding activity when responses to these pulses were ...Continue Reading

Citations

Jul 4, 2013·Journal of the Association for Research in Otolaryngology : JARO·Fei ZhangXiaorui Shi
Apr 5, 2008·Journal of Materials Science. Materials in Medicine·Daniel G OlmedoRómulo Luis Cabrini
Mar 1, 1996·Journal of Interferon & Cytokine Research : the Official Journal of the International Society for Interferon and Cytokine Research·J ThieleR Fischer
Apr 19, 2005·American Journal of Physiology. Heart and Circulatory Physiology·Dan ChalothornJames E Faber

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