Establishing a Standardized Method for the Effective Intraoperative Collection and Biological Preservation of Brain...

Area of Science:

• Neuro-oncology
• Molecular Biology
• Surgical Innovation

Background:

• Glioblastoma (GB) exhibits significant heterogeneity, complicating effective treatment strategies.
• Inconsistent procurement of high-quality, biologically preserved specimens hinders molecular research and xenograft model development.
• Lack of standardized intraoperative tissue collection methods compromises RNA integrity.

Purpose of the Study:

• To compare traditional intraoperative tissue handling with an automated preservation system (APS) for glioblastoma specimens.
• To evaluate the impact of APS on tissue viability, RNA and protein concentrations, and cell line isolation.
• To establish a standardized, repeatable method for intraoperative glioblastoma tissue collection and preservation.

Main Methods:

• Matched glioblastoma specimens from 6 patients were processed using traditional methods and the APS.
• Specimens were analyzed at various time points and temperatures for viability, RNA/protein concentrations.
• Primary glioblastoma cell lines were isolated and cultured from processed specimens.

Main Results:

• APS-processed glioblastoma slices maintained viability and high-quality RNA/protein concentrations for up to 24 hours.
• Primary glioblastoma cell cultures derived using APS showed improved growth compared to traditional methods.
• The automated system eliminated methodological inconsistencies in tissue handling and preservation.

Conclusions:

• The automated preservation system (APS) ensures consistent, high-quality glioblastoma tissue for research.
• APS facilitates improved primary glioblastoma cell culture and establishes a standardized intraoperative collection protocol.
• This automated approach enhances reproducibility and requires no additional personnel.