The CTS Rotea Counterflow Centrifugation instrument, single-use kit, and CTS Rotea software work together seamlessly to provide a closed cell processing system. The CTS Rotea instrument is compact and versatile and integrates smoothly at multiple points in your workflow. The single-use kit includes all tubing and the rotating centrifuge chamber. Compatible with Luer connectors and sterile welding to the fluid containers, the gamma-irradiated kits help to ensure a closed system. Finally, the CTS Rotea software runs on an adjacent tablet computer, allowing you to view and modify protocols and visually monitor the process in real time.
Highly flexible instrument and software with sterile single use kit that scales with you from research through commercial manufacturing.
The CTS Rotea system separates cells using the principle of counterflow centrifugation (CFC), a versatile method for separating cells based on their sedimentation characteristics (size and density). The system suspends cells in a fluidized bed by exerting a constant flow force against centrifugal forces. The fluid-suspended cells are gently concentrated without ever forming a pellet in the cone and washed efficiently at unmatched recovery rates. Using elutriation, dead cells can be removed to optimize viability. Cell types of different sizes and densities can be separated with the CTS Rotea system by tuning centrifugal speed and flow rate to create an imbalance of forces.
The CTS Rotea CFC process is powerful yet extremely gentle on cells compared to other separation methods. The fluidized bed supports low-shear processing, enabling over 95% cell recovery while maintaining cell viability and achieving high throughput. Research shows that cell morphology and viability of cells are similar before and after CFC, confirming that the process minimally perturbs cells.¹
The CTS Rotea system is designed to handle a wide range of input volumes from 50 mL to 20 L, and produce output volumes as low as 5 mL at concentrations up to 300 million cells/mL. These highly concentrated, low-volume cell outputs contain very little buffer or carryover, making them ideal for autologous cell therapy.
The multipurpose CTS Rotea system is designed to fit within multiple stages of your existing processes and offers exceptional cell recovery and high throughput, making it easily serve a variety of processes including cell separation, concentration, washing, buffer exchange, and cryopreservation. This highly versatile system can process small-to-large input volumes (50 mL to 20 L) and output concentrations (5–300 x 10⁶ cells/mL). All of the cell processing is contained within a closed, sterile single-use kit, whose fluid path is designed to be gentle on cells and allow easy recovery of cells from the processing chamber.
A user-friendly graphical user interface controls the CTS Rotea system. Choose from a menu of preset protocols or create and optimize your own protocol for cell separation, washing, and concentration. The on-board protocol builder guides you through the development process, and simulation software helps to ensure the protocols you create will perform as you intend before you try them on your samples. Additionally, the software is easily locked, so that when you’re ready to move your optimized process to manufacturing, users can no longer adjust the process settings.
Using counterflow centrifugation and elutriation of smaller cells, the CTS Rotea Counterflow Centrifugation System is designed to separate cells, aggregates, or beads based on size and is very gentle on fragile cells such as primary cells and iPSC aggregates. Labs using the CTS Rotea system can take advantage of its utility at multiple stages of their existing process workflows.
The CTS Rotea system offers superior utility in these applications:
|Cell wash/buffer exchange||T cell and MSC wash and concentration|
|Cell concentration||iPSC aggregate processing|
|Elutriation/cell separation||PBMC/monocyte separation|
|Cell isolation and selection||Dead cell removal and depletion|
|Low-volume recovery||QC sample prep and isolation|
|Small- to mid-scale cell processing||Formulation for cryopreservation|
Often, laboratory processes are not suitable for commercial manufacturing because they are not reproducible at that scale. Such processes can be difficult and costly to scale up or to transfer to a different commercial system.
The CTS Rotea Counterflow Centrifugation System can readily process a wide range of input and output volumes. That makes it useful not only for different tasks in the cell processing workflow, but also for different stages in the development and manufacturing process. You can use the system to develop and refine your processes, then later transition the processes seamlessly and confidently, locking protocols to meet clinical GMP manufacturing requirements and dramatically reducing the costs of transitioning to another system.² Alternatively, you can use CTS Rotea instruments for key processes to supplement, streamline, and even improve existing manufacturing workflows in fully integrated cell therapy processing systems.
Because the system is modular, you can separate rapid process steps such as cell separation, washing, and concentration from lengthy process steps such as cell expansion. As you scale up, simply add as many CTS Rotea instruments as you need for each step to keep up with the workflow. If needed, you can transition from standard single-use kits (flow rates 5–110 mL/min) to high-flow kits (30–160 mL/min), while all processes remain exactly the same.
The modular, closed process minimizes the need for biosafety cabinets and large, costly class A and B clean rooms. With single-use kits, you can simultaneously process multiple batches in a shared grade C clean room. Only the more hazardous processes need to be contained and mitigated.
Choosing a system that meets regulatory requirements is critical for the long-term success of your therapeutic development and has significant implications for clinical translation and manufacturability. Investing in the development of a closed, scalable automated system prior to regulatory approval can reduce risk and potential time lost to changing systems as you progress from research to commercialization. A Gibco CTS Rotea system can streamline and expedite your cell therapy development.
Cell therapy systems (CTS) products are designed to enable GMP clinical and commercial cell and gene therapy manufacturing. They are backed by testing and regulatory support to help reduce risk and enable you to confidently move from research to clinical and commercial cell therapy development.
Regulatory Support Files (RSF) are available upon request and include:
For the instrument
Instrument safety compliance standards
For single-use kits
Materials of Construction
Extractable and sterility assurance summary data
Detailed lot-specific Certificate of Analysis
CTS Rotea Counterflow Centrifuge and CTS Rotea Single-Use Kit are manufactured under ISO13485, adhering to all compliance guidelines.
Rotea graphical user interface software has multiple user privileges, including locked manufacturing operator mode.
OPCUA interface, industry-standard machine communication language, enables connection to a MES/LIM or 21 CFR Part 11 compliant system.
For Research Use or Manufacturing of Cell, Gene, or Tissue-Based Products.