Ly6C expression differentiates plasma cells from other B cell subsets in mice.
Författare
Summary, in English
Plasma cell differentiation is induced in vitro by lipopolysaccharide (LPS) stimulation but can be blocked by including anti-CD40 antibodies. Using subtractive cDNA hybridization we have identified the cell surface protein Ly6C as differentially expressed on B cells stimulated with LPS only. Ly6C has been shown to be expressed on certain T cell subsets and on subsets of macrophages and NK cells, but not on resting B cells. We show that Ly6C is up-regulated upon LPS stimulation of B cells in vitro and that this up-regulation is blocked by anti-CD40 or anti-Ig antibodies. Furthermore, ELISPOT analysis of cells sorted by magnetic-activated cell sorting show that Ly6C is expressed on ex vivo plasma cells from the spleen and bone marrow. Flow cytometric analysis showed that Ly6C is expressed on splenic plasma cells as well as on lamina propria plasma cells. Finally, Ly6C cross-linking positively up-regulated the amount of immunoglobulin produced by LPS-stimulated splenic B cells in vitro.
Avdelning/ar
- Immunology
Publiceringsår
2002
Språk
Engelska
Sidor
97-103
Publikation/Tidskrift/Serie
European Journal of Immunology
Volym
32
Issue
1
Länkar
Dokumenttyp
Artikel i tidskrift
Förlag
John Wiley & Sons Inc.
Ämne
- Immunology in the medical area
Nyckelord
- B-Lymphocyte Subsets : cytology : drug effects : metabolism
- Animal
- Gene Expression
- Intestine Small : cytology
- Lipopolysaccharides : pharmacology
- Membrane Glycoproteins : genetics : metabolism
- Mice
- Mice Inbred C57BL
- Mitogens : pharmacology
- Phosphatidylinositols : metabolism
- Plasma Cells
- Support Non-U.S. Gov't
- Spleen : cytology
- Biological Markers
- Bone Marrow Cells : cytology
- Cell Differentiation
- Cell Lineage
- Cells Cultured
- Cross-Linking Reagents
Status
Published
Forskningsgrupp
- Immunology
ISBN/ISSN/Övrigt
- ISSN: 1521-4141