Changing the paradigm of cancer therapy and beyond

Cytonus™, derived from the Greek words Cyto meaning cell and Onus or carrier. Cytonus Therapeutics Inc, has developed a next-generation Adoptive Cellular Therapy (ACT) platform technology with numerous medical applications. Our team of leading cell engineering and immunotherapy scientists have created a unique cell-line, CARGOCYTE™ that has proven to have many attributes and benefits in the continued quest to find safe, precise, and controllable cell-based immunotherapies. Our CARGOCYTE™ platform has the potential to change the paradigm of cancer therapy and beyond.

About us

The Cytonus team

We are a cell-based platform technology company focused on immune-oncology and gene therapies for devastative and rare diseases. For the past 25 years, our Co-Founder, Dr. Richard Klemke has been a leader in the field of cell engineering and cancer immunotherapy. As a clinical-stage biotechnology spinout of his lab at University of California San Diego (UC San Diego) with research fully funded by the National Institute of Health (NIH), Cytonus Therapeutics’ proprietary CARGOCYTE™ cell platform of therapeutics target the most difficult to treat cancers.

Click here to meet our team

Therapeutic Cargocytes

CARGOCYTES™: Engineered enucleated cells that carry multiple therapeutic payloads in a precise, safe, and predictable manner to specific targets (cancer cells). They are specifically designed to locate and activate the host’s immune system to attack cancer cells. The advantages of using our proprietary CARGOCYTE™ platform as compared to other Adoptive Cellular Therapy (ACTs) are:

Ideal Cell-based TherapyTILCAR-TCARGOCYTE™
Homogeneous SourceX
Unlimited EngineeringXX
Controllable EngraftmentXX
Safe after EngineeringXX or

TIL- Tumor Infiltrating Lymphocyte
CAR-Chimeric Antigen Receptors

Time-lapse video of Lifeact-RFP hTERT MSCs and derived Cargocytes (red) migrating through 1 µm and 15µm constrictions inside a microfluidic device towards chemoattractant (FBS). The enucleated Cargocytes migrate faster through the small constrictions, likely due to the absence of the large/dense nucleus. The MSCs and Cargocytes were stained with nuclear dye Hoechst 33342 (blue). Video courtesy of J. Keys (Lammerding Lab, Cornell).

Our pipeline

We have a unique cell-therapy that expands the possibility of immunotherapy to solid tumors as well as hematologic tumors and beyond. We believe our cell-transportation platform is the safest and most cost efficient in the world today with unlimited applications in oncology and many other diseases.



Cytonus Therapeutics reveals new strategic partnership agreement with Austria-based Phoenestra

Cytonus Therapeutics to meet with the FDA in 2020 with its immuno-oncology platform technology

Press releases


Exhibited at ASCB/EMBO 2018, San Diego

Exhibited at AACR 2019, Atlanta

Exhibited at ASGCT 2019, Washington DC

Contact us


Foundations, researchers, and patients:

We welcome the opportunity to partner with foundations, researchers, and patients. Please contact us to discuss how we can work together to improve the lives of those afflicted by cancer.

Biotechnology and pharmaceutical industry: 

We are currently engaged in research and development involving combining such payloads with the CARGOCYTE™ platform, including the development, licensing and sale of cancer and other therapies using our technology, as well as contract manufacturing of cell lines and payloads using our CARGOCYTE™ technology for pharma companies and research institutions. We invite entities interested in collaborating with us on these applications to contact us concerning possible commercial partnerships and licensing opportunities.