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Animal Models

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Division of Comparative Medicine

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Simian Immunodeficiency Virus and Storage Buffer: Field-Friendly Preservation Methods for RNA Viral Detection in Primate Feces

Wilde et al., mSphere. 2023.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10732032/

Simian immunodeficiency virus (SIV) infects more than 40 nonhuman primate (NHP) species in sub-Saharan Africa, but testing in wild NHP populations can be challenging. Researchers compared methods for SIV RNA preservation and recovery from NHP fecal samples stored in four different buffers. The goal of this work was to identify a robust “field-friendly” method (i.e., without freezing or refrigeration) for this effort, and the samples were collected from a mantled guereza colobus housed at the Columbus Zoo and Aquarium. The authors reported that the DNA/RNA shield is an optimal buffer for preserving SIV RNA in fecal samples in the field. Their findings will inform future fieldwork and facilitate improved approaches for studies of SIV and other RNA viruses. Supported by ORIP (P51OD011132) and NIAID.

Zebrafish as a High Throughput Model for Organ Preservation and Transplantation Research

Da Silveira Cavalcante et al., The FASEB Journal. 2023.

https://faseb.onlinelibrary.wiley.com/doi/10.1096/fj.202300076R

Organ transplantation increases the quality of life and life expectancy of patients with chronic end-stage diseases, but the preservation of organs for transplantation remains a significant barrier. In the current study, researchers demonstrate the value of zebrafish as a high-throughput model organism in the fields of solid-organ preservation and transplantation, with a focus on heart preservation via partial freezing. Their techniques have the potential to advance research in the fields of cryobiology and solid-organ transplantation. Supported by ORIP (R24OD031955) and NHLBI.

3-D Printed Customizable Vitrification Devices for Preservation of Genetic Resources of Aquatic Species

Tiersch et al., Aquacultural Engineering. 2020.

https://www.sciencedirect.com/science/article/pii/S0144860920300406

Sperm vitrification as an alternative approach to conventional cryopreservation allows quick and low-cost sample preservation and is suitable for small-bodied aquatic species with miniscule testis, fieldwork at remote locations, and small-scale freezing for research purposes. Tiersch et al. report the developing of operational prototypes of 3-dimensional (3-D) printed vitrification devices. This study demonstrated the feasibility of developing standardized low-cost devices fabricated by 3-D printing with functions including vitrification, volume control, labeling, protection, and storage. These prototypes can be further developed to assist development of germplasm repositories to protect the genetic resources of aquatic species by breeders, hatcheries, aquariums, and researchers. Supported by ORIP (R24OD010441).