Prospective highlights of serum glycoproteins in spontaneous tolerance after orthotopic liver transplantation

We examined the effects and the mechanisms of serum glycoproteins on spontaneous tolerance after orthotopic liver transplantation (OLT) between DA (RT-1 a) and PVG (RT-1 c) rats. A functional proteome analysis was introduced to investigate differently expressed proteins involved in overcoming major...

Full description

Saved in:
Bibliographic Details
Published in:Clinica chimica acta 2011-03, Vol.412 (7), p.604-613
Main Authors: Pan, Tai-Long, Wang, Pei-Wen, Chen, Shui-Ten, Fang, Jia-You, Hsu, Teng-Kuei, Sintupisut, Nardnisa, Goto, Shigeru, Chen, Chao-Long
Format: Article
Language:English
Subjects:
Adaptation, Physiological
Allograft rejection
Amino Acid Sequence
Blotting, Western
Electrophoresis, Gel, Two-Dimensional
Enzyme-Linked Immunosorbent Assay
Fucosylation
Glycoproteins - blood
Glycoproteins - chemistry
Humans
IL-6
Immunosuppressive
Interleukin-6 - metabolism
Liver Transplantation
Mass Spectrometry
Molecular Sequence Data
Orthotopic liver transplantation
Prospective Studies
Proteomics
Signal Transduction
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We examined the effects and the mechanisms of serum glycoproteins on spontaneous tolerance after orthotopic liver transplantation (OLT) between DA (RT-1 a) and PVG (RT-1 c) rats. A functional proteome analysis was introduced to investigate differently expressed proteins involved in overcoming major histocompatibility complex (MHC) barriers and lectin blotting was applied to survey the levels of fucosylated proteins. Two-dimensional difference gel electrophoresis (2D-DIGE) coupled with mass spectrometry revealed statistically significant changes in the intensity of 19 proteins at 14 and 60 post-OLT days which respectively corresponded to rejection and tolerance. An interaction network analysis of the identified proteins indicated that the interleukin (IL)-6 signaling pathway might be correlated with the immune events in this model. The peak of IL-6 expression occurred during the recovery period might play a role in the remarkable shifts in the immune response towards spontaneous tolerance. Furthermore, increased levels of IL-6-modulated fucosylation of Igh-6 were also observed during the rejection response while fucosylated hemopexin and haptoglobin were obviously upregulated in the tolerogenic period. These findings suggest that IL-6 and glycoproteins may play critical roles in this spontaneous tolerogenic DA/PVG OLT model and shed light on prolonging hepatic allograft survival in the future.
ISSN:0009-8981
1873-3492
DOI:10.1016/j.cca.2010.12.014