Spleen dendritic cells exhibit altered morphology and increased allostimulatory capacity after short‐term culture

G. Girolomoni, G. Zambruno, V. Manca, P. R. Bergstresser, Ponciano D Cruz

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

Abstract la‐bearing dendritic cells (DC) are a class of bone marrow‐derived antigen‐presenting cells that appear to possess an increased capacity to stimulate resting T lymphocytes. DC from different tissues share several morphologic, phenotypic and functional attributes. For example, freshly isolated DC from spleen resemble phenotypically and functionally freshly isolated Langerhans cells (LC) from epidermis; in addition, during short‐term culture both DC and LC undergo several parallel changes including modifications affecting phenotype, capacity to present protein antigens, and ability to route surface la molecules into intracellular acidic compartments (J Immunol 1990: 145: 2820–2826). In the present study we show, using immunoelectron microscopy with anti‐la and anti‐33Dl monoclonal antibodies, freshly isolated DC in suspension to have a smooth cell surface with few and short cytoplasmic projections. By contrast, cultured DC display conspicuous bulbous cytoplasmic protrusions. In addition, spleen DC following culture for 24–48 hours exhibit an increased ability to stimulated allogeneic T lymphocytes in the primary mixed leukocyte reaction. These changes, similar to those described for freshly isolated and cultured LC respectively, further substantiate the close relationship between DC and LC.

Original languageEnglish (US)
Pages (from-to)129-133
Number of pages5
JournalExperimental Dermatology
Volume1
Issue number3
DOIs
StatePublished - Jun 1992

Keywords

  • Langerhans cells
  • immunoelectron microscopy
  • short‐term culture
  • spleen dendritic cells

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology
  • Dermatology

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