In Vivo Studies

The EMSR uses in vivo models to complete preclinical research and evaluate anti-cancer agents for efficacy in prevention, intervention and regression. We perform these studies in both xenograft and genetically engineered mouse (GEM) models. The EMSR is a full-service facility, and our team provides technical and scientific expertise to investigators regarding the choice of in vivo model, study design and data collection. 

Xenograft Studies

The EMSR maintains a colony of SCID (severe combined immune deficient) mice to help reduce the cost of xenograft studies; however, any strain of mouse can be utilized. The service can perform xenograft studies from cell culture to tissue harvest. Our team is certified to perform surgeries, irradiation, fluorescence and bioluminescence imaging.
Implantation options include:

  • Subcutaneous injection of tumor cells (flank, mammary fat pad, dorsal)
  • Orthotopic injection or implantation
  • Window chamber
  • Intracardiac injection
  • Intraosseus injection

All xenograft options can also be performed in any mouse and rat model.

Acute Toxicity, MTD Studies, and Pharmacokinetic Studies

The Shared Resource can test Maximum Tolerated Dose in novel compounds. These studies often lead to subsequent pharmacokinetics and then xenograft or GEM model studies. Important aspects of early preclinical drug development,the EMSR Team offers basic services in bioavailability, pharmacokinetics, and toxicity analysis.Toxicology studies can include any or all of the following:

  • Timed agent dosing and sampling
  • Tissue and/or organ preservation
  • Plasma and/or serum sampling
  • Histology and pathology
  • Complete Blood Counts with differentials

Pharmacokinetic sampling can be designed as a stand alone experiment, or it can be included into your therapeutic agent efficacy design. The EMSR works in collaboration with the Analytical Chemistry Shared Resource for design and analysis of the pharmacokinetic samples.

Sample Analysis

Samples harvested from in-vivo studies can be sent to the Tissue Acquisition and Cellular/Molecular Analysis Shared Resource, the University Animal Care Pathology Services, or the investigator’s lab for processing and analysis.

Disclaimer: The Experimental Mouse Shared Resource will perform experiments outlined in the investigator approved experimental designs with the highest care and quality. The Experimental Mouse Shared Resource is not responsible or liable for any claims, loss or damage arising from the quality of the material (cell lines etc.) or the experimental design (drug doses, frequency, etc.) provided by the Investigator.