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2015 ; 10
(7
): e0131730
Nephropedia Template TP
gab.com Text
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English Wikipedia
Association of Anti-GT1a Antibodies with an Outbreak of Guillain-Barré Syndrome
and Analysis of Ganglioside Mimicry in an Associated Campylobacter jejuni Strain
#MMPMID26197476
Zhang M
; Gilbert M
; Yuki N
; Cao F
; Li J
; Liu H
; Li Q
; Meng F
; Zhang J
PLoS One
2015[]; 10
(7
): e0131730
PMID26197476
show ga
An outbreak of Guillain-Barré syndrome (GBS), subsequent to Campylobacter jejuni
enteritis, occurred in China in 2007. Serum anti-ganglioside antibodies were
measured in GBS patients and controls. Genome sequencing was used to determine
the phylogenetic relationship among three C. jejuni strains from a patient with
GBS (ICDCCJ07001), a patient with gastroenteritis (ICDCCJ07002) and a healthy
carrier (ICDCCJ07004), which were all associated with the outbreak. The
ganglioside-like structures of the lipo-oligosaccharides of these strains were
determined by mass spectrometry. Seventeen (53%) of the GBS patients had
anti-GT1a IgG antibodies. GT1a mimicry was found in the lipo-oligosaccharides of
strain ICDCCJ07002 and ICDCCJ07004; but a combination of GM3/GD3 mimics was
observed in ICDCCJ07001, although this patient had anti-GT1a IgG antibodies. A
single-base deletion in a glycosyltransferase gene caused the absence of GT1a
mimicry in ICDCCJ07001. The phylogenetic tree showed that ICDCCJ07002 and
ICDCCJ07004 were genetically closer to each other than to ICDCCJ07001. C. jejuni,
bearing a GT1a-like lipo-oligosaccharide, might have caused the GBS outbreak and
the loss of GT1a mimicry may have helped ICDCCJ07001 to survive in the host.