Dietary supplementation of recombinant tilapia piscidin 4-expressing yeast enhances growth and immune response in Lates calcarifer

Marine antimicrobial peptide tilapia piscidin (TP) 4 possesses antibacterial and immune regulatory activities, making it a potentially valuable feed supplement in aquaculture. In this study, we expressed the TP4 peptide, originally identified from Oreochromis niloticus, in yeast (Pichia pastoris) un...

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Main Authors: Han-Ning Huang, Bor-Chyuan Su, Tsung-Yu Tsai, Venugopal Rajanbabu, Chieh-Yu Pan, Jyh-Yih Chen
Format: Article
Language:English
Published: Elsevier 2020-03-01
Series:Aquaculture Reports
Online Access:http://www.sciencedirect.com/science/article/pii/S2352513419301693
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author Han-Ning Huang
Bor-Chyuan Su
Tsung-Yu Tsai
Venugopal Rajanbabu
Chieh-Yu Pan
Jyh-Yih Chen
author_facet Han-Ning Huang
Bor-Chyuan Su
Tsung-Yu Tsai
Venugopal Rajanbabu
Chieh-Yu Pan
Jyh-Yih Chen
author_sort Han-Ning Huang
collection DOAJ
description Marine antimicrobial peptide tilapia piscidin (TP) 4 possesses antibacterial and immune regulatory activities, making it a potentially valuable feed supplement in aquaculture. In this study, we expressed the TP4 peptide, originally identified from Oreochromis niloticus, in yeast (Pichia pastoris) under the control of an alcohol oxidase (Aox) 1 promoter. Recombinant (r)TP4 expression was induced by methanol. Transformation was confirmed by PCR, and expression was confirmed by colony hybridization. For scalable production, transformed yeast was cultured and induced in a bench-top fermenter bioreactor system under controlled conditions. The rTP4-expressing yeast cells were then pelleted and fed to 28-day-old Lates calcarifer as a 0, 1, 3 or 5 % supplement to the normal diet. Growth performance and immune response were monitored in the fish for four weeks. The 3 and 5 % rTP4-yeast groups showed significant improvements in weight gain, feed efficiency, survival, protein efficiency ratio, and hepatosomatic index. In addition, rTP4-yeast increased the levels of IgM, which plays a critical role in innate immunity. Furthermore, rTP4-yeast-containing diet elevated SOD, GPx and catalase activities. Since feeding L. calcarifer with bioreactor-produced rTP4-expressing yeast significantly enhanced growth and immunity, rTP4 should be considered for use as a functional feed supplement to replace excessively administered antibiotics in farmed fish. Keyword: Tilapia
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spelling doaj.art-9385b7748dbb4683b58318bf6832354b2022-12-21T19:05:01ZengElsevierAquaculture Reports2352-51342020-03-0116Dietary supplementation of recombinant tilapia piscidin 4-expressing yeast enhances growth and immune response in Lates calcariferHan-Ning Huang0Bor-Chyuan Su1Tsung-Yu Tsai2Venugopal Rajanbabu3Chieh-Yu Pan4Jyh-Yih Chen5Genomics Biotechnology Co., Ltd, 14F., No.100, Sec. 1, Xintai 5th Rd., Xizhi Dist., New Taipei City TaiwanDepartment of Anatomy and Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, TaiwanMarine Research Station, Institute of Cellular and Organismic Biology, Academia Sinica, 23-10 Dahuen Road, Jiaushi, Ilan 262, TaiwanAnbil Dharmalingam Agricultural College and Research Institute, Tamil Nadu Agricultural University, Tiruchchirapalli 620027, Tamil Nadu, IndiaDepartment and Graduate Institute of Aquaculture, National Kaohsiung University of Science and Technology, Kaohsiung 811, TaiwanMarine Research Station, Institute of Cellular and Organismic Biology, Academia Sinica, 23-10 Dahuen Road, Jiaushi, Ilan 262, Taiwan; Corresponding author.Marine antimicrobial peptide tilapia piscidin (TP) 4 possesses antibacterial and immune regulatory activities, making it a potentially valuable feed supplement in aquaculture. In this study, we expressed the TP4 peptide, originally identified from Oreochromis niloticus, in yeast (Pichia pastoris) under the control of an alcohol oxidase (Aox) 1 promoter. Recombinant (r)TP4 expression was induced by methanol. Transformation was confirmed by PCR, and expression was confirmed by colony hybridization. For scalable production, transformed yeast was cultured and induced in a bench-top fermenter bioreactor system under controlled conditions. The rTP4-expressing yeast cells were then pelleted and fed to 28-day-old Lates calcarifer as a 0, 1, 3 or 5 % supplement to the normal diet. Growth performance and immune response were monitored in the fish for four weeks. The 3 and 5 % rTP4-yeast groups showed significant improvements in weight gain, feed efficiency, survival, protein efficiency ratio, and hepatosomatic index. In addition, rTP4-yeast increased the levels of IgM, which plays a critical role in innate immunity. Furthermore, rTP4-yeast-containing diet elevated SOD, GPx and catalase activities. Since feeding L. calcarifer with bioreactor-produced rTP4-expressing yeast significantly enhanced growth and immunity, rTP4 should be considered for use as a functional feed supplement to replace excessively administered antibiotics in farmed fish. Keyword: Tilapiahttp://www.sciencedirect.com/science/article/pii/S2352513419301693
spellingShingle Han-Ning Huang
Bor-Chyuan Su
Tsung-Yu Tsai
Venugopal Rajanbabu
Chieh-Yu Pan
Jyh-Yih Chen
Dietary supplementation of recombinant tilapia piscidin 4-expressing yeast enhances growth and immune response in Lates calcarifer
Aquaculture Reports
title Dietary supplementation of recombinant tilapia piscidin 4-expressing yeast enhances growth and immune response in Lates calcarifer
title_full Dietary supplementation of recombinant tilapia piscidin 4-expressing yeast enhances growth and immune response in Lates calcarifer
title_fullStr Dietary supplementation of recombinant tilapia piscidin 4-expressing yeast enhances growth and immune response in Lates calcarifer
title_full_unstemmed Dietary supplementation of recombinant tilapia piscidin 4-expressing yeast enhances growth and immune response in Lates calcarifer
title_short Dietary supplementation of recombinant tilapia piscidin 4-expressing yeast enhances growth and immune response in Lates calcarifer
title_sort dietary supplementation of recombinant tilapia piscidin 4 expressing yeast enhances growth and immune response in lates calcarifer
url http://www.sciencedirect.com/science/article/pii/S2352513419301693
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