Generating an Ex Vivo Ovine Wounded Skin Model Infected with a Bacterial Pathogen

Published: May 31, 2024

Abstract

Source: Regan, H. C., et al. A Novel High-Throughput Ex Vivo Ovine Skin Wound Model for Testing Emerging Antibiotics. J. Vis. Exp. (2022).

The video demonstrates the generation of an ex vivo ovine skin model infected with Staphylococcus aureus. This entails treating a lamb's forehead skin biopsy section with antibiotics, establishing a wound bed, positioning it on a permeable membrane in a multiwell plate with antibiotic-free medium, and establishing bacterial infection in the skin wound.

Protocol

All procedures involving animal models have been reviewed by the local institutional animal care committee and the JoVE veterinary review board. 1. Sterilization Disinfect forceps prior to collection of the heads by taking clean forceps and performing dry heat sterilization in an oven at 200 °C for 1 h. Autoclave all glassware at 121 °C for 15 min before use. Carry out all described work within a microbiology class 2 cabinet. Prepare all reagent…

Divulgations

The authors have nothing to disclose.

Materials

24 Well Companion Plate SLS 353504
4 mm Biopsy Punch Williams Medical D7484
50 ml centrifuge tubes Fisher Scientific 10788561
8 mm Biopsy Punch Williams Medical D7488
Amphotericin B solution, sterile Sigma A2942
Colour Pro Style Cordless Hair Clipper Wahl 9639-2117X Hair Clippers
Dual Oven Incubator SLS OVe1020 Sterilising oven
Epidermal growth factor SLS E5036-200UG
Ethanol Honeywell 458600-2.5L
F12 HAM Sigma N4888
Foetal bovine serum Labtech International CA-115/500
Forceps Fisher Scientific 15307805
Hair Removal Cream Veet Not applicable
Heracell VIOS 160i Thermo Scientific 15373212 Tissue culture incubator
Heraeus Megafuge 16R VWR 521-2242 Centrifuge
Insert Individual 24 well 0.4um membrane VWR International 353095
Insulin, recombinant Human SLS 91077C-1G
Medium 199 (MK media) Sigma M0393
Microplate, cell culture Costar 96 well Fisher Scientific 10687551
Multitron Infors Not applicable Bacterial incubator
PBS tablets Sigma P4417-100TAB
Penicillin-Streptomycin SLS P0781
Plate seals Fisher Scientific ESI-B-100
Safe 2020 Fisher Scientific 1284804 Class II microbiology safety cabinet
Scalpel blade number 15 Fisher Scientific O305
Scalpel Swann Morton Fisher Scientific 11849002
Sodium bicarbonate Sigma S5761-1KG
Toothed Allis Tissue Forceps Rocialle RSPU500-322
Tryptic Soy Broth Merck Life Science UK Limited 41298-500G-F
Vimoba Tablets Quip Labs VMTAB75BX

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Citer Cet Article
Generating an Ex Vivo Ovine Wounded Skin Model Infected with a Bacterial Pathogen. J. Vis. Exp. (Pending Publication), e22251, doi: (2024).

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