Local delivery of IL-1α polymeric microspheres for the immunotherapy of an experimental fibrosarcoma Academic Article uri icon


  • The immunotherapeutic effects of interleukin-1α (IL-1α) encapsulated within 1–5 μm- diameter poly (D, L-lactide) microspheres and delivered intratumorally into fibrosarcoma- bearing mice were investigated. Such microspheres are avidly taken up by macrophages, and directing IL-1α into these cells may activate them to participate in antitumor responses in vivo. Treating of tumor-bearing mice with IL-1α microspheres has increased their survival rate, as compared with control mice, untreated or treated with microspheres containing …

publication date

  • January 1, 2003