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1996-02-26
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Document 0604
DOCN M9620604
TI Human lactoferrin induces phenotypic and functional changes in murine
splenic B cells.
DT 9602
AU Zimecki M; Mazurier J; Spik G; Kapp JA; Institute of Immunology and
Experimental Therapy, Polish Academy; of Sciences, Wroclaw, Poland.
SO Immunology. 1995 Sep;86(1):122-7. Unique Identifier : AIDSLINE
MED/96091081
AB The immunotropic activities of human lactoferrin were studied with
respect to phenotypic and functional changes in murine splenic B cells.
Phenotypic changes were induced by human lactoferrin in splenic B-cell
fractions separated by buoyant density. B cells from 7-8-day-old BALB/c
mice isolated from a 50/60% Percoll gradient, gained characteristic
features of more mature B cells manifested by an increase of surface IgD
and complement receptor expression. Incubation of the analogous B-cell
fraction from adult mice with human lactoferrin resulted in minor
changes in relation to IgM and IgD expression. Besides induction of
phenotypic changes on immature B cells, human lactoferrin enabled B
cells from normal newborn and adult immunodeficient CBA/N mice to
present antigen to an antigen-specific T-helper type 2 (Th2) cell line.
We conclude that human lactoferrin acts as a maturation factor for B
cells with regard to their phenotype and function.
DE Animal Animals, Newborn Antigen Presentation/DRUG EFFECTS
B-Lymphocytes/CYTOLOGY/*DRUG EFFECTS/IMMUNOLOGY Cell Division Cell
Line Human IgD/*IMMUNOLOGY IgM/*IMMUNOLOGY Lactoferrin/*PHARMACOLOGY
Macrophage-1 Antigen/IMMUNOLOGY Mice Mice, Inbred BALB C Mice, Inbred
CBA Support, Non-U.S. Gov't Support, U.S. Gov't, P.H.S. Th2
Cells/IMMUNOLOGY JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).