PMID- 30169651 OWN - NLM STAT- MEDLINE DCOM- 20190221 LR - 20191204 IS - 1525-3163 (Electronic) IS - 0021-8812 (Print) IS - 0021-8812 (Linking) VI - 96 IP - 12 DP - 2018 Dec 3 TI - Dietary sulfur amino acids affect jejunal cell proliferation and functions by affecting antioxidant capacity, Wnt/beta-catenin, and the mechanistic target of rapamycin signaling pathways in weaning piglets. PG - 5124-5133 LID - 10.1093/jas/sky349 [doi] AB - Intestinal epithelial cells undergo rapid renewal along the crypt-villus axis (CVA), which ensures intestinal functions. Weaning stress differentially effects intestinal epithelial cell metabolism and physiological states along the CVA. Sulfur amino acids (SAA) play a key role in intestinal epithelial cell functioning. This study evaluated the effects of SAA dietary supplementation on weaning pig jejunal epithelial cells along the CVA. Sixteen Duroc x Landrace x Yorkshire piglets (6.16 +/- 0.22 kg BW) were weaned at 21 d of age and were blocked by BW and gender and the randomly assigned to 1 of 2 groups fed diets consisting of low (0.53%) or high (0.85%) levels of SAA for a 7-d period. All piglets were euthanized for tissue sampling on day 7 postweaning. Jejunal epithelial cells were isolated along the CVA to yield 3 "cell fractions" (upper villus, middle villus, and crypt cells). The number of proliferating cells per crypt of piglets fed the high SAA diet was lower (P < 0.05) than that for low SAA diet. High SAA diet piglets tended to have decreased (P = 0.059) sucrase activities compared low SAA diet piglets. A high SAA diet increased (P < 0.05) total antioxidant capacity, catalase, and superoxide dismutase activities compared with a low SAA diet. mRNA expression levels of claudin-1, Slc5a1, and Slc7a9 in high SAA diet piglets were lower (P < 0.05) than for low SAA diet piglets. There were no interactions between dietary SAA and cell sections along the CVA for enzyme activities and mRNA expression in any of the weaned piglets. Protein amounts and phosphorylation levels related to Wnt/beta-catenin and mechanistic targeting of rapamycin (mTOR) signaling pathways were affected by SAA in weaning piglets. These findings indicate that dietary SAA affects jejunal cell proliferation and functions in weaning piglets. There appears to be no interactions between dietary SAA and cell sections along the CVA. The effects of SAA may be partly through affecting antioxidant capacity, and Wnt/beta-catenin and mTOR signaling pathway. FAU - Yan, Shanling AU - Yan S AD - Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, Animal Nutrition and Human Health Laboratory, School of Life Sciences, Hunan Normal University, Changsha City, Hunan, China. FAU - Long, Lina AU - Long L AD - Chinese Academy of Science, Institute of Subtropical Agriculture, Research Center for Healthy Breeding of Livestock and Poultry, Hunan Engineering and Research Center of Animal and Poultry Science and Key Laboratory for Agroecological Processes in Subtropical Region, Scientific Observation and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Changsha City, Hunan, China. FAU - Zong, Enyan AU - Zong E AD - Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, Animal Nutrition and Human Health Laboratory, School of Life Sciences, Hunan Normal University, Changsha City, Hunan, China. FAU - Huang, Pengfei AU - Huang P AD - Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, Animal Nutrition and Human Health Laboratory, School of Life Sciences, Hunan Normal University, Changsha City, Hunan, China. FAU - Li, Jianzhong AU - Li J AD - Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, Animal Nutrition and Human Health Laboratory, School of Life Sciences, Hunan Normal University, Changsha City, Hunan, China. FAU - Li, Yali AU - Li Y AD - Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, Animal Nutrition and Human Health Laboratory, School of Life Sciences, Hunan Normal University, Changsha City, Hunan, China. FAU - Ding, Xueqin AU - Ding X AD - Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, Animal Nutrition and Human Health Laboratory, School of Life Sciences, Hunan Normal University, Changsha City, Hunan, China. FAU - Xiong, Xia AU - Xiong X AD - Chinese Academy of Science, Institute of Subtropical Agriculture, Research Center for Healthy Breeding of Livestock and Poultry, Hunan Engineering and Research Center of Animal and Poultry Science and Key Laboratory for Agroecological Processes in Subtropical Region, Scientific Observation and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Changsha City, Hunan, China. FAU - Yin, Yulong AU - Yin Y AD - Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, Animal Nutrition and Human Health Laboratory, School of Life Sciences, Hunan Normal University, Changsha City, Hunan, China. AD - Chinese Academy of Science, Institute of Subtropical Agriculture, Research Center for Healthy Breeding of Livestock and Poultry, Hunan Engineering and Research Center of Animal and Poultry Science and Key Laboratory for Agroecological Processes in Subtropical Region, Scientific Observation and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Changsha City, Hunan, China. FAU - Yang, Huansheng AU - Yang H AD - Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, Animal Nutrition and Human Health Laboratory, School of Life Sciences, Hunan Normal University, Changsha City, Hunan, China. AD - Chinese Academy of Science, Institute of Subtropical Agriculture, Research Center for Healthy Breeding of Livestock and Poultry, Hunan Engineering and Research Center of Animal and Poultry Science and Key Laboratory for Agroecological Processes in Subtropical Region, Scientific Observation and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Changsha City, Hunan, China. LA - eng PT - Clinical Trial, Veterinary PT - Journal Article PL - United States TA - J Anim Sci JT - Journal of animal science JID - 8003002 RN - 0 (Amino Acids, Sulfur) RN - 0 (Antioxidants) RN - 0 (beta Catenin) SB - IM MH - Amino Acids, Sulfur/administration & dosage/*pharmacology MH - Animal Feed/*analysis MH - Animal Nutritional Physiological Phenomena MH - Animals MH - Antioxidants/metabolism MH - Cell Proliferation MH - Diet/*veterinary MH - Dietary Supplements MH - Epithelial Cells/drug effects/metabolism MH - Intestinal Mucosa/metabolism MH - Jejunum/cytology/*drug effects/metabolism MH - Random Allocation MH - Signal Transduction MH - Swine/*physiology MH - beta Catenin/*metabolism PMC - PMC6276574 EDAT- 2018/09/01 06:00 MHDA- 2019/02/23 06:00 PMCR- 2019/12/03 CRDT- 2018/09/01 06:00 PHST- 2018/04/11 00:00 [received] PHST- 2018/08/25 00:00 [accepted] PHST- 2018/09/01 06:00 [pubmed] PHST- 2019/02/23 06:00 [medline] PHST- 2018/09/01 06:00 [entrez] PHST- 2019/12/03 00:00 [pmc-release] AID - 5085566 [pii] AID - sky349 [pii] AID - 10.1093/jas/sky349 [doi] PST - ppublish SO - J Anim Sci. 2018 Dec 3;96(12):5124-5133. doi: 10.1093/jas/sky349.