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In Vitro Cytotoxicity Analysis Service

All products and services are For Research Use Only and CANNOT be used in the treatment or diagnosis of disease.

Current immunotherapies show great promise in cancer clinical trials, but meanwhile posing significant safety risks, i.e. on-target on-tumor, on-target off-tumor, and off-target toxicities. Toxic effects previously reported vary from mild-severe cytokine release syndromes (CRS) to neurotoxicity and death.

A sensitive and reproducible cytotoxicity assay that collectively reflects these functions is an essential requirement for the translation of these cellular therapeutic agents. With advanced technology platforms and extensive expertise, Creative Biolabs is dedicated to developing customized in vitro cytotoxicity analysis services for our global clients.

In Vitro Cytotoxicity Analysis

In Vitro Cytotoxicity Analysis Service To study cytotoxicity effects in immunotherapies, several in vitro cytotoxicity assays have been developed. These cell-based assays include colorimetric-based approaches such as MTT and lactate dehydrogenase (LDH) assays, fluorescent-based assays using Calcein AM, luminescent-based assays measuring adenosine triphosphate (ATP) readouts with reagents like CellTiter-Glo, and homogeneous assays using cell lines engineered to express firefly luciferase.

What's more, with the development of multiparameter flow cytometry methods, the measurement of immune-mediated cell killing of tumor cells has become possible. The application of flow cytometry makes it possible to quantify and character both immune effector and tumor cells at the single-cell level. Using different labeling methods (e.g., CellTrace Violet and CFSE), researchers can distinguish effector and target cells by dye labeling, identify live and dead cells by cell viability markers, and characterize the function of the immune cells with multiparameter flow cytometry.

Creative Biolabs has robustly developed in vitro platforms to provide reproducible cell-based cytotoxicity assays for our clients all over the world. We are dedicated to design comprehensive research practices and handle high-quality in vitro studies to support your gene therapy-based I-O products development.

Features of Our Services

  • Extensive experience in immunology
  • Advanced techniques and custom assay service
  • Excellent quality and timely feedback

Creative Biolabs'scientists are confident in helping our clients shorten the clinical study journey. We are committed to providing one-stop cytokine release syndrome (CRS) management solutions to reducing the overall project development timeline for our clients. For further details, please don't hesitate to contact us and see how we can help you reach your clinical vision.

References

  1. Kiesgen S, et al. Comparative analysis of assays to measure CAR T-cell-mediated cytotoxicity. Nature Protocols. 2021 Feb 15: 1-2.
  2. Martinez EM, et al. High-throughput flow cytometric method for the simultaneous measurement of CAR-T cell characterization and cytotoxicity against solid tumor cell lines. SLAS DISCOVERY: Advancing Life Sciences R&D. 2018 Aug; 23(7): 603-12.
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