Peptide P2 targeting Vibrio parahaemolyticus PirB toxins blocks the cytotoxic effects to shrimp Litopenaeus vannamei

PirB is the main virulence factor of acute hepatopancreatic necrosis disease (AHPND) which induced the sloughing of hepatopancreatic cells and shrimp death. In addition, Litopenaeus vannamei aminopeptidase N (Lv-APN) is reported to be a functional receptor that mediates the pathogenicity by VpAHPND....

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Main Authors: Xin Zhang, Ting Chen, Chunhua Ren, Yanhong Wang, Xiao Jiang, Jiasheng Huang, Bo Ma, Boxiang Zhu, Jiayue Yin, Chaoqun Hu, Peng Luo
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:Aquaculture Reports
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Online Access:http://www.sciencedirect.com/science/article/pii/S2352513424006525
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author Xin Zhang
Ting Chen
Chunhua Ren
Yanhong Wang
Xiao Jiang
Jiasheng Huang
Bo Ma
Boxiang Zhu
Jiayue Yin
Chaoqun Hu
Peng Luo
author_facet Xin Zhang
Ting Chen
Chunhua Ren
Yanhong Wang
Xiao Jiang
Jiasheng Huang
Bo Ma
Boxiang Zhu
Jiayue Yin
Chaoqun Hu
Peng Luo
author_sort Xin Zhang
collection DOAJ
description PirB is the main virulence factor of acute hepatopancreatic necrosis disease (AHPND) which induced the sloughing of hepatopancreatic cells and shrimp death. In addition, Litopenaeus vannamei aminopeptidase N (Lv-APN) is reported to be a functional receptor that mediates the pathogenicity by VpAHPND. This study aims to screen the PirB binding peptide to rescue the survival rate under VpAHPND infection. Here, the PirB toxin-binding peptides were selected using the random phage peptide library kit, and their biological function was verified by injecting them under VpAHPND challenge. The receptor candidates for PirB were genome-wide identified and selected based on gene expression profiles, and the biological function of Lv-APN1 was confirmed through RNAi. Docking analysis of Peptide-Lv-APN1 and PirB-Lv-APN1 was conducted using the MDockPeP server, with comparative analysis implied. As a result, a total of 11 PirB binding peptides were screened, among which P2 was found to effectively improve the shrimp survival rate under VpAHPND challenge. And knocked down of Lv-APN1, candidate receptor for PirB toxin, rescued mortality under VpAHPND challenge. Furthermore, docking analysis revealed that the interface of Lv-APN1 to rPirB was consistent with the P2 to rPirB, suggesting that P2 is likely to bind to PirB to block its binding to Lv-APN1 to reduce the mortality. In conclusion, both the injection of P2 and inference of Lv-APN1 can rescue the mortality of shrimp under VpAHPND challenge, and docking analysis revealed P2 is likely to bind to rPirB, blocking its binding to Lv-APN1 and reducing VpAHPND infection.
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spelling doaj-art-ccccb71d832946b3a5eba7f2a10ef1622025-02-06T05:12:09ZengElsevierAquaculture Reports2352-51342025-03-0140102564Peptide P2 targeting Vibrio parahaemolyticus PirB toxins blocks the cytotoxic effects to shrimp Litopenaeus vannameiXin Zhang0Ting Chen1Chunhua Ren2Yanhong Wang3Xiao Jiang4Jiasheng Huang5Bo Ma6Boxiang Zhu7Jiayue Yin8Chaoqun Hu9Peng Luo10Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture (CAS), Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, ChinaKey Laboratory of Breeding Biotechnology and Sustainable Aquaculture (CAS), Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, ChinaKey Laboratory of Breeding Biotechnology and Sustainable Aquaculture (CAS), Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, ChinaKey Laboratory of Breeding Biotechnology and Sustainable Aquaculture (CAS), Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, ChinaKey Laboratory of Breeding Biotechnology and Sustainable Aquaculture (CAS), Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, ChinaKey Laboratory of Breeding Biotechnology and Sustainable Aquaculture (CAS), Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; University of Chinese Academy of Sciences, Beijing, PR ChinaKey Laboratory of Breeding Biotechnology and Sustainable Aquaculture (CAS), Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; University of Chinese Academy of Sciences, Beijing, PR ChinaShanghai Collaborative Innovation Centre for Aquatic Animal Genetics and Breeding, research Centre on Aquaculture Nutrition and Environmental Ecology of the Ministry of Agriculture and Rural Affair, Shanghai Ocean University, Shanghai, PR ChinaKey Laboratory of Breeding Biotechnology and Sustainable Aquaculture (CAS), Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; University of Chinese Academy of Sciences, Beijing, PR ChinaKey Laboratory of Breeding Biotechnology and Sustainable Aquaculture (CAS), Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Corresponding authors.Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture (CAS), Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Corresponding authors.PirB is the main virulence factor of acute hepatopancreatic necrosis disease (AHPND) which induced the sloughing of hepatopancreatic cells and shrimp death. In addition, Litopenaeus vannamei aminopeptidase N (Lv-APN) is reported to be a functional receptor that mediates the pathogenicity by VpAHPND. This study aims to screen the PirB binding peptide to rescue the survival rate under VpAHPND infection. Here, the PirB toxin-binding peptides were selected using the random phage peptide library kit, and their biological function was verified by injecting them under VpAHPND challenge. The receptor candidates for PirB were genome-wide identified and selected based on gene expression profiles, and the biological function of Lv-APN1 was confirmed through RNAi. Docking analysis of Peptide-Lv-APN1 and PirB-Lv-APN1 was conducted using the MDockPeP server, with comparative analysis implied. As a result, a total of 11 PirB binding peptides were screened, among which P2 was found to effectively improve the shrimp survival rate under VpAHPND challenge. And knocked down of Lv-APN1, candidate receptor for PirB toxin, rescued mortality under VpAHPND challenge. Furthermore, docking analysis revealed that the interface of Lv-APN1 to rPirB was consistent with the P2 to rPirB, suggesting that P2 is likely to bind to PirB to block its binding to Lv-APN1 to reduce the mortality. In conclusion, both the injection of P2 and inference of Lv-APN1 can rescue the mortality of shrimp under VpAHPND challenge, and docking analysis revealed P2 is likely to bind to rPirB, blocking its binding to Lv-APN1 and reducing VpAHPND infection.http://www.sciencedirect.com/science/article/pii/S2352513424006525Litopenaeus vannameiAHPNDPir BBinding peptideAPN
spellingShingle Xin Zhang
Ting Chen
Chunhua Ren
Yanhong Wang
Xiao Jiang
Jiasheng Huang
Bo Ma
Boxiang Zhu
Jiayue Yin
Chaoqun Hu
Peng Luo
Peptide P2 targeting Vibrio parahaemolyticus PirB toxins blocks the cytotoxic effects to shrimp Litopenaeus vannamei
Aquaculture Reports
Litopenaeus vannamei
AHPND
Pir B
Binding peptide
APN
title Peptide P2 targeting Vibrio parahaemolyticus PirB toxins blocks the cytotoxic effects to shrimp Litopenaeus vannamei
title_full Peptide P2 targeting Vibrio parahaemolyticus PirB toxins blocks the cytotoxic effects to shrimp Litopenaeus vannamei
title_fullStr Peptide P2 targeting Vibrio parahaemolyticus PirB toxins blocks the cytotoxic effects to shrimp Litopenaeus vannamei
title_full_unstemmed Peptide P2 targeting Vibrio parahaemolyticus PirB toxins blocks the cytotoxic effects to shrimp Litopenaeus vannamei
title_short Peptide P2 targeting Vibrio parahaemolyticus PirB toxins blocks the cytotoxic effects to shrimp Litopenaeus vannamei
title_sort peptide p2 targeting vibrio parahaemolyticus pirb toxins blocks the cytotoxic effects to shrimp litopenaeus vannamei
topic Litopenaeus vannamei
AHPND
Pir B
Binding peptide
APN
url http://www.sciencedirect.com/science/article/pii/S2352513424006525
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