Another Mudskipper Antimicrobial Peptide Shows Broad-Spectrum Bacterial Killing and Fish Protection
Boleokidin39-61, an amphibious fish-derived AMP, showed broad-spectrum activity against Gram-positive and Gram-negative bacteria including MDR strains, with in vivo fish protection.
Quick Facts
What This Study Found
Boleokidin39-61 exhibited broad-spectrum antibacterial activity including against MDR strains, with confirmed in vivo protective efficacy in fish.
Key Numbers
How They Did This
Gene expression analysis in infected mudskipper, peptide synthesis, broad-spectrum antimicrobial testing, and in vivo fish infection protection studies.
Why This Research Matters
Discovering multiple effective AMPs from the same fish species builds a toolkit of peptide alternatives to antibiotics for aquaculture disease management.
The Bigger Picture
Amphibious fish, living between water and land, may have evolved uniquely potent immune peptides that provide new templates for antimicrobial drug development.
What This Study Doesn't Tell Us
Aquaculture-focused; human therapeutic potential not explored; production scaling challenges.
Questions This Raises
- ?Could Boleokidin39-61 and Pecbloodin18-37 be used in combination for broader aquaculture disease protection?
- ?What structural features give amphibious fish AMPs their broad-spectrum activity?
Trust & Context
- Key Stat:
- Broad-spectrum + in vivo efficacy Boleokidin39-61 kills Gram-positive and Gram-negative bacteria and protects fish from infection
- Evidence Grade:
- Preclinical aquaculture study — demonstrates practical antimicrobial potential with in vivo validation.
- Study Age:
- Published 2026 in Journal of Natural Products.
- Original Title:
- An Amphibious Fish-Derived Antimicrobial Peptide, Boleokidin39-61, with Broad-Spectrum Antibacterial Activity and In Vivo Protective Efficacy.
- Published In:
- Journal of natural products (2026)
- Authors:
- Bai, Yuqi(3), Zhan, Jingyuan(2), Zhang, Weibin(3), Zheng, Wenbin, Chen, Fangyi, Wang, Ke-Jian
- Database ID:
- RPEP-14814
Evidence Hierarchy
Frequently Asked Questions
Why are mudskippers good sources of antimicrobial peptides?
Mudskippers live between water and land, exposing them to diverse pathogens in both environments. Their immune systems have evolved potent antimicrobial peptides to handle this challenge.
Could fish peptides eventually help fight human infections?
Potentially — while these peptides are being developed for aquaculture, the broad-spectrum activity against drug-resistant bacteria makes them interesting templates for human antibiotic development too.
Read More on RethinkPeptides
Related articles coming soon.
Cite This Study
https://rethinkpeptides.com/research/RPEP-14814APA
Bai, Yuqi; Zhan, Jingyuan; Zhang, Weibin; Zheng, Wenbin; Chen, Fangyi; Wang, Ke-Jian. (2026). An Amphibious Fish-Derived Antimicrobial Peptide, Boleokidin39-61, with Broad-Spectrum Antibacterial Activity and In Vivo Protective Efficacy.. Journal of natural products. https://doi.org/10.1021/acs.jnatprod.5c01507
MLA
Bai, Yuqi, et al. "An Amphibious Fish-Derived Antimicrobial Peptide, Boleokidin39-61, with Broad-Spectrum Antibacterial Activity and In Vivo Protective Efficacy.." Journal of natural products, 2026. https://doi.org/10.1021/acs.jnatprod.5c01507
RethinkPeptides
RethinkPeptides Research Database. "An Amphibious Fish-Derived Antimicrobial Peptide, Boleokidin..." RPEP-14814. Retrieved from https://rethinkpeptides.com/research/bai-2026-an-amphibious-fishderived-antimicrobial
Access the Original Study
Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.
This study breakdown was produced by the RethinkPeptides research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.