Our NK-Activity ePBMC® has been characterized for cytolytic activity against K562 tumor cells. This cell line expresses no MHC-I at its’ surface, which enables testing of NK activity.


Natural Killer cells (NK cells) are a part of Peripheral Blood Mononuclear Cells (PBMC) and fulfil a crucial function in the innate immune system when detecting virus infected- and tumor cells. Some viruses internalize the MHC-I, attempting to hide their presence of the adaptive immune system. NK cells circulate in the blood and screen every cell if the major-histocompatibility complex (MHC-I) molecule is expressed on the surface. Missing MHC-I triggers apoptosis from the NK cell inside the effector cell.

≥10 million cells per vial Cat# CTL-NCP1

Learn more about the NK-TVA™ Platform

Please contact us if you are interested in a donor with a defined Killing % Effector:Target Ratios.



Request for Quotation

By sending this form you agree that we will use your information to answer your request or contact you. Further information on data protection can also be found in the data protection declaration on this website.

Your message has been sent. Thank you!