Antimicrobial Secretions of Toads (Anura, Bufonidae): Bioactive Extracts and Isolated Compounds against Human Pathogens

Species of the family Bufonidae, better known as true toads, are widespread and produce bioactive substances in the secretions obtained from specialized skin macroglands. Some true toads have been employed as a folk remedy to treat infectious diseases caused by microbial pathogens. Recent publicatio...

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Main Authors: Candelario Rodriguez, Roberto Ibáñez, Louise A. Rollins-Smith, Marcelino Gutiérrez, Armando A. Durant-Archibold
Format: Article
Language:English
Published: MDPI AG 2020-11-01
Series:Antibiotics
Subjects:
Online Access:https://www.mdpi.com/2079-6382/9/12/843
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author Candelario Rodriguez
Roberto Ibáñez
Louise A. Rollins-Smith
Marcelino Gutiérrez
Armando A. Durant-Archibold
author_facet Candelario Rodriguez
Roberto Ibáñez
Louise A. Rollins-Smith
Marcelino Gutiérrez
Armando A. Durant-Archibold
author_sort Candelario Rodriguez
collection DOAJ
description Species of the family Bufonidae, better known as true toads, are widespread and produce bioactive substances in the secretions obtained from specialized skin macroglands. Some true toads have been employed as a folk remedy to treat infectious diseases caused by microbial pathogens. Recent publications based on in silico analysis highlighted the Bufonidae as promising sources of antimicrobial peptides. A review of the literature reveals that Bufonidae skin secretion extracts show inhibitory activity in vitro against clinical isolates of bacteria, resistant and standard strains of bacterial, and fungal and parasitic human pathogens. Secondary metabolites belonging to the classes of alkaloids, bufadienolides, and peptides with antimicrobial activity have been isolated from species of the genera <i>Bufo</i>, <i>Bufotes</i>, <i>Duttaphrynus,</i> and <i>Rhinella</i>. Additionally, some antimicrobial extracts and purified compounds display low cytotoxicity against mammal cells.
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spelling doaj.art-42214ce60153416dba8ec8395adf92202023-11-20T22:21:40ZengMDPI AGAntibiotics2079-63822020-11-0191284310.3390/antibiotics9120843Antimicrobial Secretions of Toads (Anura, Bufonidae): Bioactive Extracts and Isolated Compounds against Human PathogensCandelario Rodriguez0Roberto Ibáñez1Louise A. Rollins-Smith2Marcelino Gutiérrez3Armando A. Durant-Archibold4Centro de Biodiversidad y Descubrimiento de Drogas, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), Clayton, Panama City 0843-01103, PanamaSmithsonian Tropical Research Institute (STRI), Balboa 0843-03092, PanamaDepartment of Pathology, Microbiology, and Immunology, and Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, TN 37232, USACentro de Biodiversidad y Descubrimiento de Drogas, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), Clayton, Panama City 0843-01103, PanamaCentro de Biodiversidad y Descubrimiento de Drogas, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), Clayton, Panama City 0843-01103, PanamaSpecies of the family Bufonidae, better known as true toads, are widespread and produce bioactive substances in the secretions obtained from specialized skin macroglands. Some true toads have been employed as a folk remedy to treat infectious diseases caused by microbial pathogens. Recent publications based on in silico analysis highlighted the Bufonidae as promising sources of antimicrobial peptides. A review of the literature reveals that Bufonidae skin secretion extracts show inhibitory activity in vitro against clinical isolates of bacteria, resistant and standard strains of bacterial, and fungal and parasitic human pathogens. Secondary metabolites belonging to the classes of alkaloids, bufadienolides, and peptides with antimicrobial activity have been isolated from species of the genera <i>Bufo</i>, <i>Bufotes</i>, <i>Duttaphrynus,</i> and <i>Rhinella</i>. Additionally, some antimicrobial extracts and purified compounds display low cytotoxicity against mammal cells.https://www.mdpi.com/2079-6382/9/12/843alkaloidsamphibiansantimicrobial peptidesbufadienolidesBufonidaecrude extract
spellingShingle Candelario Rodriguez
Roberto Ibáñez
Louise A. Rollins-Smith
Marcelino Gutiérrez
Armando A. Durant-Archibold
Antimicrobial Secretions of Toads (Anura, Bufonidae): Bioactive Extracts and Isolated Compounds against Human Pathogens
Antibiotics
alkaloids
amphibians
antimicrobial peptides
bufadienolides
Bufonidae
crude extract
title Antimicrobial Secretions of Toads (Anura, Bufonidae): Bioactive Extracts and Isolated Compounds against Human Pathogens
title_full Antimicrobial Secretions of Toads (Anura, Bufonidae): Bioactive Extracts and Isolated Compounds against Human Pathogens
title_fullStr Antimicrobial Secretions of Toads (Anura, Bufonidae): Bioactive Extracts and Isolated Compounds against Human Pathogens
title_full_unstemmed Antimicrobial Secretions of Toads (Anura, Bufonidae): Bioactive Extracts and Isolated Compounds against Human Pathogens
title_short Antimicrobial Secretions of Toads (Anura, Bufonidae): Bioactive Extracts and Isolated Compounds against Human Pathogens
title_sort antimicrobial secretions of toads anura bufonidae bioactive extracts and isolated compounds against human pathogens
topic alkaloids
amphibians
antimicrobial peptides
bufadienolides
Bufonidae
crude extract
url https://www.mdpi.com/2079-6382/9/12/843
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