Proliferation and immunoglobulin secretion of lymphoblastoid cell lines are differently affected by soluble cytokines

M. P. Pistillo, M. Cella, S. Mantero, G. B. Ferrara

Research output: Contribution to journalArticlepeer-review

Abstract

The aim of our study was to investigate whether supernatant from lipopolysaccharide-activated monocytes (monocyte-factor) and/or cytokines could enhance secretion of human monoclonal antibodies specific to HLA antigens produced by Epstein-Barr virus lymphoblastoid cell lines (EBV-LCLs). In a low cell density culture system, the monocyte-factor significantly stimulated cell growth of three monoclonal and two polyclonal EBV-LCLs while no enhancement of immunoglobulin production was observed. The enhancement of proliferation was completely neutralized by an antiserum to human IL-6 suggesting that IL-6 was required for the stimulation of growth of LCLs. The effect of cytokines on proliferation showed large variations among the cell lines, with IL-1β generally inducing the highest response. Of the cytokines tested, only IL-2 was able to enhance total immunoglobulin secretion due to the induction of a higher production of light chains. The specific anti-HLA activity was slightly increased by IL-10 although this cytokine had no effect on total immunoglobulin concentration or proliferation.

Original languageEnglish
Pages (from-to)293-305
Number of pages13
JournalCell Proliferation
Volume27
Issue number6
Publication statusPublished - 1994

ASJC Scopus subject areas

  • Cell Biology

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