Expression of monocarboxylate transporter 1 (MCT1) in the dog intestine.
In this study, the expression and distribution of monocarboxyolate transporter 1 (MCT1) along the intestines (duodenum, jejunum, ileum, cecum, colon and rectum) of dogs were investigated at both the mRNA and protein levels. The expression of MCT1 protein and its distribution were confirmed by Western blotting and immunohistochemical staining using the antibody for MCT1. We identified mRNA coding for MCT1 and a 43-kDa band of MCT1 protein in all regions from the duodenum to the rectum. Immunoreactive staining for MCT1 was also observed in epithelial cells throughout the intestines. MCT1 immunoreactivity was greater in the large intestine than in the small intestine. MCT1 protein was predominantly expressed on the basolateral membranes along intestinal epithelial cells, suggesting that MCT1 may play an important role in lactate efflux and transport of short-chain fatty acids (SCFAs) to the bloodstream across the basolateral membranes of the dog intestine.
Shimoyama
Yumiko
Y
Department of Veterinary Pathology, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido, Japan.
Kirat
Doaa
D
Akihara
Yuko
Y
Kawasako
Kazufumi
K
Komine
Misa
M
Hirayama
Kazuko
K
Matsuda
Kazuya
K
Okamoto
Minoru
M
Iwano
Hidetomo
H
Kato
Seiyu
S
Taniyama
Hiroyuki
H
D000818:Animals; D004285:Dogs / Q000235:genetics* / Q000378:metabolism*; D005786:Gene Expression Regulation; D007413:Intestinal Mucosa / Q000378:metabolism*; D007422:Intestines / Q000166:cytology; D027501:Monocarboxylic Acid Transporters / Q000235:genetics* / Q000378:metabolism*; D012333:RNA, Messenger / Q000378:metabolism; D027981:Symporters / Q000235:genetics* / Q000378:metabolism*; D000099233:Monocarboxylate Transport Protein 1
D027501:Monocarboxylic Acid Transporters; D012333:RNA, Messenger; D027981:Symporters; D000099233:Monocarboxylate Transport Protein 1