PBS Biotech
Cell Therapy · Natural Killer Cells

NK & CAR-NK Cells

Scale allogeneic NK and CAR-NK therapies from 60 mL to 80 L, with cytotoxic potency intact and perfusion built in.

60 mL–80 L
one platform
≥ G-Rex
cytotoxic potency
ATF
perfusion-ready
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Why Vertical-Wheel® for NK cells

NK cells are a promising allogeneic immunotherapy with less cytokine-release risk than CAR-T, but traditional autologous platforms cannot reach commercial allogeneic scale. Vertical-Wheel® bioreactors span a wide working-volume range for parallel optimization and scale-up.

Potency preserved

Gentle mixing maintains cytotoxic potency, matching or exceeding static G-Rex in head-to-head expansion.

Allogeneic scale

One platform spans 60 mL to 80 L for parallel process optimization and commercial allogeneic supply.

Perfusion-intensified

Integrates Repligen XCell® ATF perfusion for high-density CAR-NK expansion at 3 L and beyond.

Applications

What You Can Build.

Workflows our customers and collaborators run on the Vertical-Wheel® platform, every one backed by published data or a protocol below.

  • NK expansion
  • CAR-NK
  • Allogeneic immunotherapy
  • Perfusion culture
  • NK-derived EVs
≥ G-Rex

Vertical-Wheel® matched or exceeded static G-Rex cytotoxic potency while scaling NK expansion from 60 mL to 80 L.

Source · NK cell case study · potency vs static culture
The Technology

One Wheel. Gentle, Homogeneous Mixing.

Every result on this page comes back to the same mechanism: a single vertically-oriented wheel that suspends cells uniformly at low shear, from 0.1 L to 80 L.

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Ready to Scale Your NK cells Process?

Talk to an application scientist about a Vertical-Wheel® path tuned to your cell type and timeline.