Cardiopulmonary Complex Decellularization: A Technique for Decellularizing Heart and Lungs from Murine Model
Published: April 30, 2023
Abstract
Source: Mayorca-Guiliani, A. E. et al. Decellularization of the Murine Cardiopulmonary Complex. J. Vis. Exp. (2021)
This video demonstrates a method of producing decellularized extracellular matrix or ECM scaffolds by applying antegrade perfusion of detergents through the vasculature. The structural ECM scaffolds can then be used to analyze ECM remodeling associated with cardiopulmonary disease.
Protocol
All procedures involving animal models have been reviewed by the local institutional animal care committee and the JoVE veterinary review board. 1. Post-mortem Microsurgery Euthanize the mouse using a CO2 chamber. Place mouse into a 4 L chamber, and begin to fill with 100% CO2, starting at 0.2 L/min for 2 min, increasing until reaching a flow of 0.8 L/min after 3 min. The mouse should fall unconscious during the…
開示
The authors have nothing to disclose.
Materials
| MICROSURGERY | |||
| 6-0 suture, triangular section needle (Vicryl) | Ethicon | 6301124 | |
| 9-0 micro-suture (Safil) | B Braun | G1048611 | |
| Adson forceps | Fine Science Tools | 11006-12 | |
| Adson forceps with teeth | Fine Science Tools | 11027-12 | |
| Castroviejo microneedle holder | Fine Science Tools | 12061-01 | |
| CO2 ventilation chamber for mouse euthanasia | |||
| Deionized water (Milli-Q IQ 7000, Ultrapure lab water system) | Merck | ZIQ7000T0 | |
| Disposable polystyrene tray (~30 × 50 cm) | |||
| Dissection microscope (Greenough, with two-armed gooseneck) | Leica | S6 D | |
| Double-ended microspatula | Fine Science Tools | 10091-12 | |
| Dumont microforceps (two) | Fine Science Tools | 11252-20 | |
| Dumont microforceps with 45° tips | Fine Science Tools | 11251-35 | |
| Hair clippers | Oster | 76998-320-051 | |
| Halsey needle holder (with tungsten carbide jaws) | Fine Science Tools | 12500-12 | |
| Intravenous 24-gauge catheter (Insyte) | BD | 381512 | |
| Intravenous 26-gauge catheter (Terumo) | Surflo-W | SR+DM2619WX | |
| Mayo scissors (tough cut, straight) | Fine Science Tools | 14110-15 | |
| Microforceps with ringed tips | Aesculap | FM571R | |
| Micro-spring scissors (Vannas, curved) | Fine Science Tools | 15001-08 | |
| Needles (27 gauge; Microlance) | BD | 21018 | |
| Paper towel (sterile) or surgical napkin | |||
| Serrated scissors (CeramaCut, straight) | Fine Science Tools | 14958-09 | |
| Spatula (Freer-Yasargil) | Aesculap | OL166R | |
| Syringes (1 mL; Plastipak) | BD | 3021001 | |
| Syringes (10 mL; Plastipak) | BD | 3021110 | |
| Tendon scissors (Walton) | Fine Science Tools | 14077-09 | |
| DECELLULARIZATION | |||
| 70% Ethanol (absolute alcohol 99.9%); absolute alcohol must be adjusted to 70% (vol/vol) using deionized water | Plum | 1680766 | |
| Deionized water (Milli-Q IQ 7000, Ultrapure lab water system) | Merck | ZIQ7000T0 | |
| Luer-to-tubing male fittings (1/8 inch) | World Precision Instruments | 13158-100 | |
| Luer-to-tubing male fittings (1/8 inch) | World Precision Instruments | 13158-100 | |
| PBS (pH 7.4, 10×, Gibco) | Thermo Fisher Scientific | 70011044 | |
| Penicillin-streptomycin | Gibco | 15140122 | |
| Peristaltic pump (with 12 channels) | Ole Dich | 110AC(R)20G75 | |
| Silicone tubing (with 2-mm i.d. and 4 mm o.d.) | Ole Dich | 31399 | |
| Sodium Azide | Sigma-Aldrich | 08591-1ML-F | |
| Sodium deoxycholate (DOC) | Sigma-Aldrich | D6750-100G |
