Analyte Overview


IL-21 Overview

Name(s): IL-21, Interleukin 21


      Human: 2000-2.74 pg/ml

Species: Human

Sample Type: Serum, EDTA Plasma

Detection: Chemiluminescent

Singleplex or Multiplex: Singleplex and Multiplex Available


Analyte Description

Interleukin 21 (IL-21) is a powerful cytokine that regulates the cells of both the innate and adaptive immune systems. In healthy individuals, IL-21 is produced by activated T cells, and it is also produced by cancerous cells in Hodgkin’s lymphoma. It is particularly influential on natural killer cells and cytotoxic T cells which work to eliminate infected and cancerous cells from the body. It also induces the proliferation of T cells, B cells, and natural killer cells. Dysregulation of IL-21 is often associated with immune-mediated diseases such as lupus, chronic inflammatory diseases, and psoriasis. Clinically, administration of IL-21 reduces the severity of allergic responses, encourages an anti-tumor immune response, and controls persistent viral infections. In patients with HIV, IL-21 inhibits viral reproduction and improves the function of other immune system components.

Q-Plex™ Products featuring IL-21

Human Multiplex Kits

Current retail kits unavailable, contact an Account Manager for custom printing.

As researchers and problem solvers ourselves, we understand the value of sound data. We are proud to be a part of research that can better the world. We value the relationships, partnerships, and friendships that we have built with the people who trust and use our technology. We are committed to building these relationships. You can count on us to answer the phone and take time to thoroughly address questions or concerns about any of our products. In an industry that is reputed for grandiose claims, we trust that our quality standards and our customer service set us apart from the competition. If you’re happy with our products or if you think we can do something better, we hope you will let us know.



365 North 600 West Logan, UT 84321