CYSEA STEMvision™ Automated Cell Imaging and Standardized Colony-Forming Unit (CFU) Counter

Overview

The CYSEA STEMvision™ is a benchtop, computer-integrated automated imaging and colony-forming unit (CFU) analysis system engineered for quantitative hematopoietic progenitor cell assessment in cord blood (CB) banking and clinical transplantation laboratories. It operates on high-fidelity brightfield microscopy coupled with deterministic digital image acquisition and morphology-based pattern recognition algorithms. The system is designed to replace manual, subjective CFU enumeration—traditionally performed under inverted microscopes by trained technologists—with a standardized, operator-independent workflow compliant with current Good Manufacturing Practice (cGMP) and Good Laboratory Practice (GLP) frameworks. Each 35 mm culture well is imaged in ≤30 seconds at native optical resolution, enabling rapid throughput without compromising morphological fidelity required for lineage-specific colony classification (e.g., BFU-E, CFU-G/M/GM, CFU-GEMM). Its architecture supports both conventional 14-day assays and accelerated 7-day protocols, facilitating timely release decisions for CB units while maintaining analytical rigor.

Key Features

• Automated high-resolution brightfield imaging of 35 mm Petri dishes with integrated autofocus and uniform illumination calibration
• Proprietary image analysis engine trained on validated hematopoietic colony morphology datasets, supporting multi-class discrimination of erythroid (BFU-E), granulocyte-macrophage (CFU-G/M/GM), and multilineage (CFU-GEMM) colonies
• Configurable assay templates for 7-day and 14-day CFU protocols, each with pre-defined colony size, density, and spatial distribution thresholds
• Traceable digital audit trail: every image, measurement, and classification decision is timestamped and linked to user ID, instrument log, and sample metadata
• Compliance-ready output formats compatible with FDA 21 CFR Part 11 requirements—including electronic signatures, data integrity controls, and immutable report generation
• Modular hardware design allowing integration with existing LIMS environments via HL7 or ASTM E1384-compliant interfaces

Sample Compatibility & Compliance

The STEMvision™ system is validated for use with methylcellulose- or semi-solid media-based hematopoietic colony assays derived from human umbilical cord blood mononuclear cells (MNCs). It accommodates standard 35 mm culture dishes containing ≥1 × 10⁴ viable nucleated cells per well. All software modules adhere to ISO/IEC 17025:2017 general requirements for competence of testing and calibration laboratories, and the reporting structure aligns with ISCT (International Society for Cell & Gene Therapy) minimum information standards for CFU assay documentation. The system supports dual-mode compliance: standalone operation for research use only (RUO), and validated configuration for clinical diagnostic applications under CLIA-equivalent quality management systems.

Software & Data Management

The STEMvision™ Analysis Suite is a Windows-based application built on .NET Framework with SQL Server backend architecture. It provides role-based access control (RBAC), version-controlled method files, and automatic backup of raw images and processed datasets to network-attached storage (NAS) or cloud repositories meeting HIPAA-compliant encryption standards. Reports are generated in PDF/A-1b format for long-term archival and include embedded digital signatures, checksum verification, and full traceability from raw pixel data to final CFU counts. Audit logs record all user actions—including parameter modifications, reanalysis events, and report exports—with immutable timestamps and IP address attribution. Software validation documentation (IQ/OQ/PQ protocols) is available upon request for regulatory submissions.

Applications

• Quality control release testing of cord blood units prior to cryopreservation or clinical infusion
• Longitudinal monitoring of hematopoietic progenitor potency during CB unit expansion or ex vivo manipulation studies
• Standardization of inter-laboratory CFU assay performance in multicenter clinical trials
• Supporting regulatory filings requiring reproducible, auditable progenitor cell quantification (e.g., FDA BLA, EMA MAA)
• Training and competency assessment for laboratory personnel performing manual CFU enumeration
• Integration into automated cell therapy manufacturing workflows as a release criterion endpoint

FAQ

Does STEMvision™ require external calibration standards or reference slides?
No. The system performs internal optical calibration before each imaging session using factory-characterized reference targets embedded in the stage optics.
Can the software distinguish between overlapping or fused colonies?
Yes. The algorithm applies watershed segmentation combined with texture and edge gradient analysis to resolve confluent regions based on colony boundary continuity and internal morphological homogeneity.
Is the system compatible with non-human samples (e.g., murine or porcine CB)?
While primarily validated for human cord blood, the morphology training set can be extended via customer-supplied annotated datasets under a formal revalidation protocol.
How is data security ensured during remote software updates?
All firmware and software updates are digitally signed, delivered over TLS 1.2+ encrypted channels, and require administrator-level cryptographic key authentication prior to installation.
What level of technical support is included post-purchase?
CYSEA provides 24/7 remote diagnostics, annual on-site preventive maintenance, and access to a secure customer portal hosting SOPs, validation templates, and regulatory correspondence archives.