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1996-02-26
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Document 0477
DOCN M9620477
TI Experimental hypersensitivity pneumonitis: in vitro effects of
interleukin-2 and interferon-gamma.
DT 9602
AU Fei R; Gott K; Edwards B; Schuyler M; Department of Medicine,
Albuquerque Veterans Administration; Medical Center, NM 87108, USA.
SO J Lab Clin Med. 1995 Nov;126(5):485-94. Unique Identifier : AIDSLINE
MED/96074348
AB Cultured CD4+ cells are responsible for transfer of adoptive murine
experimental hypersensitivity pneumonitis (EHP) (ARRD 1992; 146:1582-8).
To characterize interactions that occur in vitro that result in cells
able to transfer EHP, we added either antibody to IFN-gamma, antibody to
IL-2, or 30 or 300 micrograms/ml IFN-gamma at the onset of 72-hour
culture of C3H/HeJ spleen cells from either M. faeni or ovalbumin
(control) sensitized donors with 30 micrograms/ml Micropolyspora faeni.
We determined the phenotype of cells after culture and the amount of
IL-2 or IFN-gamma in the culture supernatants, transferred cells to
naive recipients, challenged the recipients intratracheally with M.
faeni, and determined the extent of pulmonary inflammatory changes 4
days thereafter. Substantial amounts of IL-2 and IFN-gamma were detected
in supernatants of cultures from M. faeni-sensitized animals, and lesser
amounts were detected in culture supernatants from ovalbumin-sensitized
donors. Treatment of cultures of M. faeni-sensitized cells with antibody
to IL-2 or IFN-gamma blocked or reduced measurable IL-2 or IFN-gamma for
the duration of culture. Treatment with IFN-gamma blocked increased
levels of IL-2 at 48 and 72 hours of culture. Cultured M.
faeni-sensitized cells adoptively transfer EHP. Cells from cultures
depleted of either IL-2 or IFN-gamma or supplemented with IFN-gamma
could transfer EHP equally well. We conclude that in vitro maturation of
cells capable of adoptive EHP is not dependent on soluble IL-2 or
IFN-gamma and is not altered by exogenous IFN-gamma.
DE Alveolitis, Extrinsic Allergic/*IMMUNOLOGY/PATHOLOGY Animal
Antibodies, Monoclonal/PHARMACOLOGY Antigens, Bacterial/IMMUNOLOGY
Cytokines/BIOSYNTHESIS/IMMUNOLOGY Immunophenotyping Immunotherapy,
Adoptive Interferon Type II/IMMUNOLOGY/*PHARMACOLOGY
Interleukin-2/IMMUNOLOGY/*PHARMACOLOGY Lung/PATHOLOGY Male Mice
Mice, Inbred BALB C Mice, Inbred C3H Micromonosporaceae/IMMUNOLOGY
Ovalbumin/IMMUNOLOGY Spleen/CYTOLOGY/DRUG EFFECTS Support, U.S. Gov't,
Non-P.H.S. Support, U.S. Gov't, P.H.S. Th1 Cells/IMMUNOLOGY Th2
Cells/IMMUNOLOGY JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).