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M9640690.TXT
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1996-03-04
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Document 0690
DOCN M9640690
TI Stable transfection of cloned murine T helper cells.
DT 9604
AU Will A; Rollinghoff M; Gessner A; Institut fur Klinische Mikrobiologie
und Immunologie,; Universitat Erlangen-Nurberg, Erlangen, Germany.
SO J Immunol Methods. 1995 Dec 15;188(1):139-46. Unique Identifier :
AIDSLINE MED/96140789
AB Here we describe a protocol for the stable transfection of murine T
helper (Th) cells and long term culture of the resulting transfectants.
The electroporation protocol was established for the murine Th2 clone
L1/1 by testing different parameters determining the electric field
(capacitance, voltage, single or twin pulse) as well as the activation
status of the cells. The transfected T cells were genetically altered by
stable integration of the neomycin resistance gene, encoded in the
vector pM5neo, into the genome. For selection and long term culture of
stable transfectants a scheme combining selection with the antibiotic
neomycin (G-418, Geneticin) and repeated stimulation with antigen
presenting cells (APC) and antigen was established. This protocol should
also be applicable to other antigen reactive T cells. The resistance of
the T cells to neomycin correlated directly with expression of the
transferred neomycin resistance gene as demonstrated by mRNA analysis.
Applying periodic reselection with neomycin the transfected Th2 cells
were found to be stable for more than 18 months in culture and displayed
an unaltered antigen recognition and lymphokine production pattern as
compared with the untransfected L1/1 Th2 cells.
DE Animal Antigen-Presenting Cells/IMMUNOLOGY/METABOLISM Base Sequence
Cell Line Clone Cells/IMMUNOLOGY Electroporation Female
Genes/IMMUNOLOGY Lymphocyte Transformation/GENETICS Mice Mice, Inbred
BALB C Molecular Sequence Data Support, Non-U.S. Gov't Th2
Cells/IMMUNOLOGY/*METABOLISM Transfection/GENETICS/*METHODS JOURNAL
ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).