Immune response modifying activity in mice of polyinosinic: polycytidylic acid stabilized with poly-L-lysine, in carboxymethylcellulose [poly-ICLC
Abstract
Poly-ICLC, a polyinosinic: polycytidylic acid stabilized with poly-L-lysine in carboxymethyl-cellulose was tested in mice for its immunoregulatory activity. Poly-ICLC was found to enhance T cell responsiveness but not B cells. It augmented the delayed type hypersensitivity response significantly. The results indicate Poly-ICLC to be a T cell stimulator. Macrophage tumoricidal activity was markedly enhanced both in vitro and in vivo after exposure to Poly-ICLC. Natural killer cell cytotoxicity was significantly augmented in vivo. Both macrophage and natural killer cell activity was maintained for over 3 days after only one treatment. The extended period of tumor cell cytotoxicity, exhibited by macrophages and natural killer cells, may correlate to Poly-ICLC induction of early and high levels of interferon which are maintained in the serum for a longer period of time.
References
Citations
Related Concepts
Related Feeds
Cancer Biology: Molecular Imaging
Molecular imaging enables noninvasive imaging of key molecules that are crucial to tumor biology. Discover the latest research in molecular imaging in cancer biology in this feed.