Custom Cell Banking — MCB, WCB & GMP Cryopreservation Guide
Cell lines are invaluable research assets representing years of development and investment. Loss of a critical cell line due to contamination, genetic drift, or storage failure can set back research programs by months or years. SeamlessBio supplies all critical reagents for successful cell banking — from research-grade to GMP-compliant.
Comprehensive Cell Banking Solutions
Master Cell Bank (MCB)
The original authenticated cell stock serving as the foundation for all future work.
- Identity authentication (STR profiling)
- Mycoplasma testing
- Viability assessment (>90% post-thaw)
- Sterility testing
- Comprehensive documentation
- Typical: 50–100 vials
Working Cell Bank (WCB)
Derived from MCB within defined passage — for routine laboratory use.
- Derived from MCB within defined passage
- Quality control testing
- Growth characterization
- Mycoplasma screening
- Full traceability to MCB
- Typical: 100–200 vials
Cryopreservation Optimisation
Develop and validate optimal freezing protocols for your specific cell lines.
- Cell-type-specific protocol development
- Cryoprotectant optimisation (DMSO concentration)
- Controlled-rate freezing protocols
- Post-thaw viability >90%
- Long-term stability studies
GMP-Grade Cell Banking
Regulatory-compliant cell banking for clinical and commercial applications.
- Full cGMP compliance
- Extensive testing (ICH Q5A, Q5D)
- Adventitious agent testing
- Complete documentation packages
- Regulatory support for IND/BLA
Cell Line Authentication
Verify identity and purity through comprehensive testing.
- STR profiling (short tandem repeat)
- Species verification
- Mycoplasma detection (PCR)
- Comparison to reference databases
- Certificate of authentication
Long-Term Storage
Secure, monitored cryogenic storage with full traceability.
- Liquid nitrogen vapor phase storage
- 24/7 temperature monitoring
- Backup power systems
- Automated inventory management
- Flexible retrieval options
Cell Banking Process: From Consultation to Delivery
Initial Consultation & Assessment
We discuss your specific needs, cell line characteristics, and intended applications. Our experts recommend the optimal banking strategy including serum grade selection and cryoprotectant.
Cell Receipt & Expansion
Your cells are received, authenticated, and expanded under optimal conditions using premium media and reserved serum lots from our validated suppliers. Strict passage control maintained.
Quality Control Testing
Comprehensive QC panel including viability, mycoplasma screening (PCR ± culture), sterility testing, and identity verification (STR profiling). Additional ICH Q5A adventitious agent testing for GMP applications.
Cryopreservation & Banking
Cells frozen using validated controlled-rate protocols with optimised cryoprotectant (DMSO concentration validated per cell type). Each vial labeled, logged, and stored under monitored conditions.
Post-Thaw Viability Verification
Representative vials thawed to confirm >90% viability (GMP) or >85% (research) and normal growth characteristics. Recovery protocols documented for your laboratory.
Documentation & Delivery
Complete documentation package: Certificate of Analysis, banking record, culture protocols, QC data, regulatory documentation. Cells shipped on dry ice with temperature monitoring.
Serum by Cell Type — Cryopreservation Selection Guide
| Cell Type | Cryopreservation Medium | Key Note |
|---|---|---|
| Standard cell lines (CHO, HEK293, Vero, HeLa) | 90% FBS Low Endotoxin ≤5 EU/mL + 10% DMSO | Low Endotoxin mandatory — endotoxin activates innate immune genes during freeze-thaw, affecting recovered cell quality |
| PBMC — research or clinical immunomonitoring | 90% FBS Very Low Endotoxin ≤1 EU/mL or 90% Human Serum AB HI + 10% DMSO | Endotoxin activates PBMCs during freeze-thaw — reduces post-thaw functional recovery |
| iPSC — research grade | 90% FBS ES-Zelle, vorab getestet + 10% DMSO | Same lot as culture medium — lot change causes differentiation stress. ES Cell Pre-Tested screened for pluripotency maintenance |
| iPSC — GMP / clinical | 4–10% rHSA Premium Grade + 10% DMSO in DMEM/F12 | Xeno-free regulatory path — no animal components. ISO 13485 documentation for GMP dossier |
| MSC (mesenchymal stem cells) | 90% hPL + 10% DMSO or xeno-free cryo medium | Xeno-free cryoprotection with high growth factor content. EU GMP-grade for MSC-based ATMP banks |
| T cells / NK cells (CAR-T bank) | 90% Human Serum AB OTC Male or AB HI + 10% DMSO | EMA/410/01 preferred — xeno-free path. Human matrix prevents xenogenic activation during banking |
| Hybridoma / mAb-producing cells | 90% FBS – extrem niedriger IgG-Wert + 10% DMSO | Consistent with culture medium — bovine IgG in standard FBS co-purifies with mAb. Ultra Low IgG throughout banking programme |
Research Grade vs GMP Grade — Testing Requirements
| Testing Parameter | Research Grade | GMP Grade |
|---|---|---|
| Viability (Post-Thaw) | >85% | >90% |
| Mycoplasma Testing | PCR | PCR + Culture (28 days) |
| Sterility Testing | Standard (14 days) | Extended (28 days) |
| Identity Verification | STR Profiling | STR Profiling + Isoenzyme Analysis |
| Adventitious Agents | Not required | Full panel (ICH Q5A) |
| Documentation | Certificate of Analysis | Complete regulatory package (IND/BLA ready) |
| Turnaround Time | 6–8 weeks | 12–16 weeks |
| Applicable Guidelines | Internal QC | ICH Q5A, Q5D, FDA/EMA GMP |
Frequently Asked Questions
Request Cell Banking Reagent Samples & Batch Reservation
Free test volumes for cell banking validation. Lot reservation for MCB/WCB campaigns. Full GMP documentation: CoA, STR profiling, ICH Q5A/Q5D packages available.
Email: info@seamlessbio.de | +49 851 37932226
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