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2016 ; 6
(ä): 36048
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Fish gut-liver immunity during homeostasis or inflammation revealed by
integrative transcriptome and proteome studies
#MMPMID27808112
Wu N
; Song YL
; Wang B
; Zhang XY
; Zhang XJ
; Wang YL
; Cheng YY
; Chen DD
; Xia XQ
; Lu YS
; Zhang YA
Sci Rep
2016[Nov]; 6
(ä): 36048
PMID27808112
show ga
The gut-associated lymphoid tissue, connected with liver via bile and blood,
constructs a local immune environment of both defense and tolerance. The
gut-liver immunity has been well-studied in mammals, yet in fish remains largely
unknown, even though enteritis as well as liver and gallbladder syndrome emerged
as a limitation in aquaculture. In this study, we performed integrative
bioinformatic analysis for both transcriptomic (gut and liver) and proteomic
(intestinal mucus and bile) data, in both healthy and infected tilapias. We found
more categories of immune transcripts in gut than liver, as well as more adaptive
immune in gut meanwhile more innate in liver. Interestingly reduced differential
immune transcripts between gut and liver upon inflammation were also revealed. In
addition, more immune proteins in bile than intestinal mucus were identified. And
bile probably providing immune effectors to intestinal mucus upon inflammation
was deduced. Specifically, many key immune transcripts in gut or liver as well as
key immune proteins in mucus or bile were demonstrated. Accordingly, we proposed
a hypothesized profile of fish gut-liver immunity, during either homeostasis or
inflammation. Current data suggested that fish gut and liver may collaborate
immunologically while keep homeostasis using own strategies, including potential
unique mechanisms.