Skip to main content
An official website of the United States government
Government Funding Lapse
Because of a lapse in government funding, the information on this website may not be up to date, transactions submitted via the website may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted.

The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit cc.nih.gov.

Updates regarding government operating status and resumption of normal operations can be found at opm.gov.

autologous ACTR-CD16-CD28-expressing T lymphocytes ACTR707

A preparation of autologous T lymphocytes that have been genetically modified, using proprietary Antibody-Coupled T-cell Receptor (ACTR) technology, to express a chimeric protein containing, at least, the extracellular Fc receptor domain of CD16, normally found on certain immune cells, such as natural killer (NK) cells, coupled to the co-stimulatory signaling domain of CD28, with potential immunostimulating and antineoplastic activities. Upon reintroduction into the patient with co-administration of a cancer-specific antibody, the co-administered antibody targets and binds to the tumor-associated antigen (TAA) expressed on the tumor cell. In turn, the autologous ACTR-CD16-CD28-expressing T lymphocytes ACTR707 bind to the antibody, become activated and induce the destruction of the tumor cells by a) releasing cytotoxins that directly kill cancer cells; b) releasing cytokines that trigger an immune response and recruit other immune-mediated killer cells to kill the tumor cells; c) targeting and killing adjacent tumor cells that are not bound to the antibody; d) inducing T-cell proliferation and thereby further enhancing the T-cell mediated tumor cell attack. Compared to other T-cell products, ACTR-based products do not target a specific TAA and can potentially be used in a variety of tumors because targeting is based on the specificity of the co-administered antibody.
Synonym:ACTR707 cells
ACTR707 T cells
Code name:ACTR707
Search NCI's Drug Dictionary