Induction of angiogenesis in chick yolk-sac membrane by polyamines and its inhibition by tissue inhibitors of metalloproteinases (TIMP and TIMP-2).
Treatment of yolk-sac membranes of 4-day-old chick embryos with spermine or spermidine resulted in angiogenesis in the membranes. The angiogenic activity of spermine was stronger than that of spermidine. Putrescine, polylysine and histamine did not induce angiogenesis in the membranes. Administration of putrescine, spermidine and spermine increased their respective levels in yolk-sac membranes, but no interconversion of these amines was observed. The increases in spermidine and spermine levels in yolk-sac membranes preceded induction of angiogenesis. The angiogenesis induced by spermine was inhibited by tissue inhibitors of metalloproteinases, that is, TIMP and TIMP-2. These findings suggest that spermine and spermidine are angiogenesis factors in yolk-sac membranes of chick embryos and that matrix metalloproteinases represented by collagenase are involved in their action.
Department of Biochemistry and Calcified-Tissue Metabolism, Faculty of Dentistry, Osaka University, Japan.
M
M
Takigawa
Y
Y
Nishida
F
F
Suzuki
J
J
Kishi
K
K
Yamashita
T
T
Hayakawa
D000818:Animals; D002642:Chick Embryo; D006023:Glycoproteins / Q000494:pharmacology*; D006632:Histamine / Q000494:pharmacology; D007700:Kinetics; D008666:Metalloendopeptidases / Q000037:antagonists & inhibitors; D009389:Neovascularization, Pathologic; D011073:Polyamines / Q000494:pharmacology*; D011107:Polylysine / Q000494:pharmacology; D011700:Putrescine / Q000494:pharmacology; D013095:Spermidine / Q000494:pharmacology; D013096:Spermine / Q000494:pharmacology; D019714:Tissue Inhibitor of Metalloproteinases; D015017:Yolk Sac / Q000098:blood supply* / Q000187:drug effects
D006023:Glycoproteins; D011073:Polyamines; D019714:Tissue Inhibitor of Metalloproteinases; D011107:Polylysine; D013096:Spermine; D006632:Histamine; D008666:Metalloendopeptidases; D013095:Spermidine; D011700:Putrescine