Your MSC CDMO

MSC therapies,
with real potency.

Engineered and unmodified mesenchymal stromal cell manufacturing —
tissue-derived expansion, banking, and GMP release testing inside one organization.

In short

Mesenchymal stromal cell (MSC) therapy manufacturing isolates MSCs from bone marrow, adipose, umbilical cord, or placental tissue, banks them, and expands them adherently into a dose — engineered or unmodified. MSCs act largely through immunomodulatory and secretory mechanisms rather than by engrafting, which is why their defining manufacturing challenge is not scale but demonstrating potency against the proposed mechanism.

GeneFab is an MSC CDMO for GMP mesenchymal stromal cell manufacturing. We cover tissue-derived isolation, GMP Master and Working cell banking, bounded adherent expansion, engineering and secreted-payload genetic circuit design where the program calls for it, and mechanism-matched potency assay development alongside GMP release testing.

What we do.

Scope of work

MSC programs enter with a tissue source, a bank, or an expansion process. These are the pieces we own.

Tissue source & bank strategy.

Bone marrow, adipose, umbilical cord, and placental sources. Donor selection and banking strategy are decided up front, because every comparability argument downstream depends on them.

  • Tissue-derived isolation and characterization
  • GMP Master and Working cell bank manufacture
  • Donor-to-donor comparability planning

Expansion — adherent
and scaled.

Adherent expansion through to scaled formats, with passage number, phenotype drift, and senescence treated as bounded process parameters rather than emergent surprises.

Engineering & genetic circuits.

Where the program calls for it, genetic circuit design from our synthetic biology group with vector we manufacture ourselves — including secreted-payload strategies.

  • Genetic circuit architecture and promoter selection
  • Secreted payload design
  • Transduction and non-viral delivery development

Potency assay development.

A potency assay built against the proposed mechanism — immunomodulatory, secretory, or regenerative — rather than a proliferation readout that proves nothing about the clinical hypothesis.

Formulation & cryopreservation.

Closed wash, concentration, and cryopreservation into the final container, with post-thaw viability and retained function treated as release-relevant.

Process development &
scale-up.

MSC doses are large, so scale-up is the defining commercial question. Development targets yield per run and cost of goods per dose while holding passage number, phenotype, and potency inside their defined limits — because scale that costs you potency is not scale.

  • Adherent scale-up and scaled format evaluation
  • Yield and cost of goods per dose modelling
  • Potency and phenotype retention at scale
  • Scale change comparability planning

Analytics & GMP release.

Identity, purity, potency, and safety assays developed against the process, with core biosafety testing performed in house.

  • GMP sterility, mycoplasma, and endotoxin
  • Identity and phenotype by flow cytometry
  • Mechanism-matched potency assay
  • Karyology and genomic stability characterization

Potency, not
proliferation.

What we insist on

An MSC product that expands beautifully and cannot demonstrate mechanism is not a product. The potency assay is the first conversation we have, not the last.

Mechanism first

The potency assay is designed against your clinical hypothesis, then the process is developed to preserve what it measures.

Bounded expansion

Passage number, phenotype, and senescence held inside defined process limits rather than discovered at scale.

Comparable across donors

Donor-to-donor comparability planned at the banking stage, where it is still cheap to address.

Common questions.

What sponsors ask before choosing a MSC CDMO for a MSC program.

Does GeneFab manufacture mesenchymal stromal cell therapies?

Yes. We manufacture engineered and unmodified MSC products under GMP, from tissue-derived starting material through banking, expansion, formulation, and release.

Which tissue sources do you work with?

Bone marrow, adipose, umbilical cord, and placental sources. Donor selection and banking strategy are addressed up front because downstream comparability depends on them.

Can you develop an MSC potency assay?

Yes, and we consider it the central analytical problem. The assay is built against the proposed mechanism — immunomodulatory, secretory, or regenerative — alongside process development.

Can you engineer MSCs?

Yes. Where the program calls for it, our synthetic biology group supports genetic circuit design including secreted-payload strategies, and we manufacture the vector or use non-viral delivery.

How do you handle phenotype drift and senescence?

Passage number, phenotype, and senescence are treated as bounded process parameters with defined limits, characterized during development rather than discovered at scale.

Do you support MSC process development and scale-up?

Yes. MSC doses are large, so scale-up is central. We develop yield per run and cost of goods per dose while holding passage number, phenotype, and potency inside defined limits, with comparability planned around any scale change.

How does an MSC program start with GeneFab?

A technical exchange under CDA, then a gap assessment of your process and analytics, a tech transfer plan, and engineering runs before GMP. Requesting a quote starts that conversation.