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-Gal and Anti-Gal - 1,3-Galactosyltransferase, -Gal Epitopes, and the Natural Anti-Gal Antibody Subcellular Biochemistry (Paperback, Softcover reprint of the original 1st ed. 1999)
Loot Price: R5,739
Discovery Miles 57 390
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-Gal and Anti-Gal - 1,3-Galactosyltransferase, -Gal Epitopes, and the Natural Anti-Gal Antibody Subcellular Biochemistry (Paperback, Softcover reprint of the original 1st ed. 1999)
Series: Subcellular Biochemistry, 32
Expected to ship within 10 - 15 working days
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It has been 15 years since the first report on the isolation of
anti-Gal from human serum and the demonstration that this antibody
is the most prevalent antibody in humans (Galili et al. , ]. Exp.
Med. 160: 1519, 1984). Subsequent interdisciplinary studies in
immunology, carbohydrate biochemistry, molecular biology, and evo-
lution demonstrated the highly restricted specificity of anti-Gal
for the carbohy- drate epitope Gal al-3Galpl-4GIcNAc-R, (termed
here the a-gal epitope), the unprecedented evolutionary pattern of
distribution of a-gal and anti-Gal in mam- mals, and explained the
evolution of this antigen and antibody by analysis of the a 1
,3galactosyltransferase gene, the gene that encodes the enzyme that
synthesizes the a-gal epitope. These studies have suggested that a
major selection process that occurred in the course of evolution of
ancestral Old World primates resulted in the inactivation of the a1
,3galactosyltransferase gene and the subsequent appearance of
anti-Gal in these primates. Other studies in immunoparasitology
have demon- strated the possible physiologic significance of
anti-Gal in protection against cer- tain parasitic infections.
Major scientific attention was focused on a-gal and anti-Gal with
the real- ization in the early nineties that the interaction
between this antigen and antibody is the major obstacle to
xenotransplantation. The success of immunosuppressive drugs, in the
last two decades of the 20th century, in preventing allograft
rejection, has raised hopes for cure in many patients in need of
organ transplant. Because of limited supply of allografts, only 20%
of patients receive the needed organ.
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