Identification of crystallin family proteins in vitreous body in rat endotoxin-induced uveitis: Involvement of crystallin truncation in uveitis pathogenesis.
Endotoxin-induced uveitis (EIU) is an animal model of acute ocular inflammation. To characterize the mechanism of EIU, we analyzed the infiltration of proteins in the vitreous bodies of rats with EIU and normal rats using 2-DE and micro LC/LC-MS/MS. Twenty spots were identified in vitreous bodies of rats. Eighteen of these spots were members of the crystallin family. The truncated form of beta A4- and beta B2-crystallin were predominant in normal vitreous bodies, but there were intact form of crystallins in lipopolysaccharide-injected rats with EIU. These results suggest that crystallin family proteins are the major group of proteins involved in uveitic vitreous and that C-terminal truncation of beta-crystallins may play a role in EIU-related disease progression.
Bahk
Song-Chul
SC
Genome Research Center for Immune Disorders, School of Medicine, Wonkwang University, Iksan, Republic of Korea.
Lee
Sook-Hee
SH
Jang
Jung-Un
JU
Choi
Chang-Uk
CU
Lee
Bok-Soo
BS
Chae
Soo-Cheon
SC
Song
Hye-Jin
HJ
Park
Zee-Yong
ZY
Yang
Yun-Sik
YS
Chung
Hun-Taeg
HT
D000595:Amino Acid Sequence; D000818:Animals; D003459:Crystallins / Q000378:metabolism*; D015180:Electrophoresis, Gel, Two-Dimensional; D008070:Lipopolysaccharides; D008297:Male; D013058:Mass Spectrometry; D008969:Molecular Sequence Data; D020543:Proteome / Q000378:metabolism*; D051381:Rats; D011917:Rats, Inbred Lew; D014605:Uveitis / Q000139:chemically induced / Q000378:metabolism*; D014822:Vitreous Body / Q000378:metabolism*
D003459:Crystallins; D008070:Lipopolysaccharides; D020543:Proteome