Targeting phthalocyanines to tumor cells using epidermal growth factor conjugates.
Epidermal growth factor (EGF) was used as a vector for targeted delivery of phthalocyanines to tumor cells. The conjugates of EGF with disulfochloride aluminum phthalocyanine [Pc(Al)] and disulfochloride cobalt phthalocyanine [Pc(Co)] were synthesized. The cytotoxic activity of the conjugates against the human breast carcinoma cell line MCF-7 was determined. The cytotoxic activity of the EGF-Pc(Co) conjugate was 4.5 times higher than that of the EGF-Pc(Al) conjugate. The antitumor activity of the EGF-Pc(Co) conjugate was also studied in vivo in murine melanoma B16. Compared to free Pc(Co), intravenous injections of Pc(Co) conjugated with EGF inhibited tumor development and increased mean life span and mean survival time of experimental animals.
Lutsenko
S V
SV
Research Center for Bioengineering, Russian Academy of Sciences, Moscow, Russia.
Feldman
N B
NB
Finakova
G V
GV
Posypanova
G A
GA
Severin
S E
SE
Skryabin
K G
KG
Kirpichnikov
M P
MP
Lukyanets
E A
EA
Vorozhtsov
G N
GN
D000818:Animals; D000970:Antineoplastic Agents / Q000494:pharmacology*; D004815:Epidermal Growth Factor / Q000494:pharmacology*; D006801:Humans; D007211:Indoles / Q000494:pharmacology*; D008297:Male; D008546:Melanoma, Experimental / Q000188:drug therapy; D051379:Mice; D008810:Mice, Inbred C57BL; D009942:Organometallic Compounds / Q000494:pharmacology*; D014407:Tumor Cells, Cultured
D000970:Antineoplastic Agents; D007211:Indoles; D009942:Organometallic Compounds; C063633:cobalt phthalocyanine; C060570:aluminum phthalocyanine; D004815:Epidermal Growth Factor