NCIt synonyms : L19IL2/L19TNF; Darleukin/Fibromun; L19-IL2 and L19-TNF-alpha; Darleukin and Fibromun; L19-IL2/L19-TNF-alpha;
NCIt definition : A combination of darleukin (L19-IL2), an immunocytokine consisting of the recombinant
form of interleukin-2 (IL-2), fused to a human single-chain variable fragment (scFv)
directed against the extra-domain B (ED-B) of fibronectin (L19), and fibromun (L19-TNFalpha),
an immunocytokine consisting of human tumor necrosis factor alpha (TNFalpha) fused
to a human scFv antibody fragment directed against the ED-B of L19, with potential
antineoplastic and immunostimulating activities. Upon administration, the L-19 moieties
of each immunocytokine bind to the ED-B domain of fibronectin on tumor cells in the
tumor neovasculature. In turn, the IL-2 and TNF-alpha moieties of darleukin and fibromun,
respectively, may locally induce an immune response against ED-B fibronectin-expressing
tumor cells. ED-B is predominantly expressed during angiogenesis and tumor growth.;