Laser-Assisted Lentiviral Gene Delivery: A Technique to Permeabilize Mouse Fertilized Eggs to Facilitate Lentiviral Gene Delivery
Published: April 30, 2023
Abstract
Source: Martin, N. P., et al. Laser-assisted Lentiviral Gene Delivery to Mouse Fertilized Eggs. J. Vis. Exp. (2018).
In this video, we demonstrate the laser-assisted permeation of the protective layer of zona pellucida in mouse fertilized eggs for facilitating lentiviral gene delivery. Lentivirus enables the generation of transgenic animals with a gene of interest stably integrated into their genome.
Protocol
1. Perforation of Mouse Fertilized Eggs with XYClone Laser Setup and calibrate XYClone laser according to the manufacturer's recommendation. Other lasers, typically used for in vitro fertilization, can be substituted for XYClone laser to perforate fertilized eggs. Attach the laser controller box wire to the laser apparatus on the microscope. Attach the laser controller box to the computer running the laser software via a USB port. 3.1.3. Plug in the laser controll…
Representative Results
Figure 1: Laser-Treatment of Mouse Fertilized Eggs. Examples of perforating the zona to produce a hole vs thinning of the zona.
開示
The authors have nothing to disclose.
Materials
| CD510B-1 plasmid | System Biosciences | CD510B-1 | used to package the lentivirus expressing EF1a-copGFP |
| Dimethylpolysiloxane | Sigma | DMPS5X | culturing embryos |
| XYClone Laser | Hamilton Thorne Biosciences | perforating mouse fertilized eggs | |
| Non-Surgical Embryo Transfer (NSET) Device | ParaTechs | 60010 | NSET of embryos |
| KSOM medium | Millipore | MR-020P-5F | culturing embryos |
| Composition of KSOM: | mg/100mL | ||
| NaCl | 555 | ||
| KCl | 18.5 | ||
| KH2PO4 | 4.75 | ||
| MgSO4 7H2O | 4.95 | ||
| CaCl2 2H2O | 25 | ||
| NaHCO3 | 210 | ||
| Glucose | 3.6 | ||
| Na-Pyruvate | 2.2 | ||
| DL-Lactic Acid, sodium salt | 0.174mL | ||
| 10 mM EDTA | 100µL | ||
| Streptomycin | 5 | ||
| Penicillin | 6.3 | ||
| 0.5% phenol red | 0.1mL | ||
| L-Glutamine | 14.6 | ||
| MEM Essential Amino Acids | 1mL | ||
| MEM Non-essential AA | 0.5mL | ||
| BSA | 100 |
