BIOFOUNDRY FOR BIOPHARMACEUTICAL CELL BANKS
"Early Development and Scale-up Proof of Concept (PoC) for Biotherapeutics and Vaccines"

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Cell Authentication

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Cell bank authentication services are crucial for ensuring the identity, purity, and quality of strains used in research, pharmaceutical manufacturing, and biotechnology applications. These services verify that the strains, often stored in cell banks, are correctly identified and free from contamination. Authentication helps ensure reproducibility in research and compliance with regulatory standards, particularly in the production of biopharmaceuticals, vaccines, and industrial biotechnology products.

  • Genetic Profiling: Molecular techniques, such as 16S rRNA sequencing for bacteria or ITS (Internal Transcribed Spacer) sequencing for fungi, are used to identify microbial species accurately. This is the most reliable method for confirming the identity of microbial cell banks.
  • Whole Genome Sequencing (WGS): Provides a more detailed and comprehensive analysis of the microbial genome to confirm strain identity and identify any genetic variations.
  • Biochemical Characterization: Traditional methods including BIOLOG involve testing the physiological and biochemical properties of the microorganisms (e.g., fermentation patterns, enzyme activities, nutrient utilization) to identify strains.
  • API (Analytical Profile Index): A commercial system VITEK 2 uses a series of tests to identify and test the antibiotic susceptibility of different bacterial species.

  • Endotoxin Testing: Detection of endotoxins (from Gram-negative bacteria) to ensure the safety and quality of the cell bank, particularly in pharmaceutical applications.
  • Fungal and Bacterial Contamination Screening: Testing for the presence of unintended microbial contaminants such as other bacteria, fungi, or viruses that might have been introduced during culturing or storage.
  • Antibiotic Resistance Testing: Ensures the strain has not developed resistance to critical antibiotics that may affect research or therapeutic use.

  • Colony Morphology Analysis: Ensuring that the cell bank is free from contaminants by examining the characteristics of colonies, such as size, shape, and color.
  • Microscopic Examination: Direct observation under a microscope to identify any morphological differences or contaminants in the cell bank.

  • Passage Number Analysis: Monitoring the number of passages a microbial strain has undergone to assess genetic stability over time.
  • Cryopreservation and Viability Testing: Ensuring that microbial strains are properly frozen, stored, and remain viable for future use. This is especially important for long-term storage of microbial cultures in a bank.

  • Good Manufacturing Practice (GMP) Compliance: Authentication services help ensure that microbial strains meet GMP standards, especially when the strains are used for commercial-scale production of biologics, vaccines, or antibiotics.
  • ISO Certification: Microbial cell banks may also need to be ISO-certified to comply with international standards for strain authentication and quality control.
  • Pharmacopoeia Compliance: For strains used in the production of biopharmaceuticals, compliance with standards set by global pharmacopoeias (e.g., USP, EP) is necessary.

  • Strain History and Data Records: Detailed records about the origin, collection, passage history, and testing results of cell banks are kept ensuring traceability and transparency.
  • Certificate of Analysis (COA): A formal document that confirms the authentication, quality, and purity of the cell bank. This is essential for regulatory submissions.

  • Cryogenic Storage: Cell banks are stored in cryogenic conditions to preserve their integrity and viability. Authentication services ensure that the freezing process is done correctly and that strains are stored in validated conditions.
  • Long-Term Monitoring: Ensuring that cell banks maintain their identity and purity over time, especially when stored for long periods.