[Establishment of a glioma orthotopic xenograft model based on imaging technology]

Area of Science:

• Neuro-oncology
• Preclinical cancer research
• Medical imaging

Background:

• Orthotopic xenograft models are crucial for evaluating anti-cancer drug efficacy.
• Human brain cancer models require robust monitoring tools for preclinical studies.

Purpose of the Study:

• To establish and validate an orthotopic xenograft model of human brain cancer (U87MG-m Cherry-luc) in Balb/c nude mice.
• To assess the utility of integrated imaging technologies for monitoring tumor progression.
• To evaluate the model's capacity for assessing antitumor drug activity.

Main Methods:

• Establishment of an orthotopic xenograft model using U87MG-m Cherry-luc human brain cancer cells in Balb/c nude mice.
• Tumor growth monitoring using magnetic resonance imaging (MRI), in vivo imaging (IVI), and micro-computed tomography (micro-CT).
• Evaluation of the model's response to temozolomide, a positive control drug.

Main Results:

• Successful establishment of the U87MG-m Cherry-luc orthotopic xenograft model.
• Demonstrated feasibility of monitoring tumor progression using combined MRI, IVI, and micro-CT.
• The model showed sensitivity to temozolomide, indicating its utility for drug evaluation.

Conclusions:

• The integrated imaging approach provides comprehensive monitoring of glioma progression in the established orthotopic xenograft model.
• This validated model and imaging strategy are effective for evaluating the antitumor activity of therapeutic agents against brain cancer.