Abstract: Compounds of general formula (1): X1Y1X2Y2X3Y3X4Y4Y5X5X6Y6X7Y7X8X9X10 wherein X1-X10 are any natural or unnatural amino acids and Y1 is Gln; Y2 is Met or Leu; Y3 is He; Y4 is Pro or Ser; Y5 is His or Gly; Y6 is Gln or Pro; Y7 is He or Tyr or their homolog or ortolog are described; these compounds are able to bind to the VEGF receptors and to modulate the angiogenesis mediated by the VEG.

Abstract: The present invention is related to new peptide antagonists of ?v?3 receptor, designed on the basis of the crystal structure of integrin ?v?3 in complex with c(RGDf[NMe]V) and the NMR structure of echistatin. These peptides are potent and selective antagonists of the ?v?3 receptor and can be used as novel anticancer drugs and/or new class of diagnostic non-invasive tracers as suitable tools for ?v?3-targeted therapy and imaging.

Abstract: Compounds of general formula (1): X1Y1X2Y2X3Y3X4Y4Y5X5X6Y6X7Y7X8X9X10 wherein X1-X10 are any natural or unnatural amino acids and Y1 is Gln; Y2 is Met or Leu; Y3 is He; Y4 is Pro or Ser; Y5 is His or Gly; Y6 is Gln or Pro; Y7 is He or Tyr or their homolog or ortolog are described; these compounds are able to bind to the VEGF receptors and to modulate the angiogenesis mediated by the VEG.

Abstract: Delivery systems based on liposomes functionalized with peptides and chelating agents, for therapy and imaging by selective targeting of tumour cells expressing the receptors GRP, BB1, BB2, BB3 e BB4 and any other receptor which recognizes the bombesin peptide or analogues thereof are described. In particular, the liposomes contain within them cytotoxic drugs, such as for example doxorubicin, for target-selective antitumour therapy, and, through the presence of the chelating agent, can contain radioactive or paramagnetic ions for the real time visualization of the tumour cells. The liposomes described in this invention thus act as a selective delivery system for drugs and/or contrast agents onto tumour cells expressing the receptors for the class of known peptides such as bombesin (endogenous sequence, analogous or peptidomimetic peptides, agonists or non agonists).

Abstract: Compounds of general formula (1): X1Y1X2Y2X3Y3X4Y4Y5X5X6Y6X7Y7X8X9X10 wherein X1-X10 are any natural or unnatural amino acids and Y1 is Gln; Y2 is Met or Leu; Y3 is He; Y4 is Pro or Ser; Y5 is His or Gly; Y6 is Gln or Pro; Y7 is He or Tyr or their homolog or ortolog are described; these compounds are able to bind to the VEGF receptors and to modulate the angiogenesis mediated by the VEG.

Abstract: The present invention is related to new peptide antagonists of ?v?3 receptor, designed on the basis of the crystal structure of integrin ?v?3 in complex with c(RGDf[NMe]V) and the NMR structure of echistatin. These peptides are potent and selective antagonists of the ?v?3 receptor and can be used as novel anticancer drugs and/or new class of diagnostic non-invasive tracers as suitable tools for ?v?3-targeted therapy and imaging.

Abstract: The present invention is related to new peptide antagonists of ?v?3 receptor, designed on the basis of the crystal structure of integrin ?v?3 in complex with c(RGDf[NMe]V) and the NMR structure of echistatin. These peptides are potent and selective antagonists of the ?v?3 receptor and can be used as novel anticancer drugs and/or new class of diagnostic non-invasive tracers as suitable tools for ?v?3-targeted therapy and imaging.

Abstract: Compounds of general formula (1): X1Y1X2Y2X3Y3X4Y4Y5X5X6Y6X7Y7X8X9X10 wherein X1-X10 are any natural or unnatural amino acids and Y1 is Gln; Y2 is Met or Leu; Y3 is He; Y4 is Pro or Ser; Y5 is His or Gly; Y6 is Gln or Pro; Y7 is He or Tyr or their homolog or ortolog are described; these compounds are able to bind to the VEGF receptors and to modulate the angiogenesis mediated by the VEG.

Abstract: The present invention is related to the use of compounds which bind to the Vascular Endothelial Growth Factor Receptors and modulate the angiogenic response. The compounds, which mimic the VEGF amino acid region 17-25 involved in receptor recognition thereby inhibiting or stimulating the angiogenic process, can be used in the treatment of diseases characterized by excessive or defective angiogenesis VEGF-dependent, such as chronic ischemia, cancer, proliferative retinopathy and rheumatoid arthritis, states or conditions benefiting from the formation or regeneration of new vessels, as well as in the diagnosis of pathologies which present a overexpression of VEGF receptors or as biochemical tools to analyze the cellular pathways dependent on VEGF receptor activation.

Abstract: The present invention is related to new peptide antagonists of ?v?3 receptor, designed on the basis of the crystal structure of integrin ?v?3 in complex with c(RGDf[NMe]V) and the NMR structure of echistatin. These peptides are potent and selective antagonists of the ?v?3 receptor and can be used as novel anticancer drugs and/or new class of diagnostic non-invasive tracers as suitable tools for ?v?3-targeted therapy and imaging.

Abstract: This patent application describes the preparation of cyclic and branched peptides of general formula (I) and their conjugated derivatives labelled with a paramagnetic or radioactive metal. The compounds of the present invention are used as diagnostic agents to identify and locate primary tumours and their metastases which over-express type A and/or B cholecystokinin receptors, and as therapeutic agents and cholecystokinin agonists or antagonists.

Abstract: The present invention relates to a novel class of contrast agents for use in nuclear magnetic resonance (MRI), to identify and locate primary human tumours and their metastases which over-express type CCK A and/or type B cholecystokinin receptors, and/or type SSTR 1-5 somatostatin receptors.

Abstract: This patent application describes the preparation of cyclic and branched peptides of general formula (I) and their conjugated derivatives labelled with a paramagnetic or radioactive metal. The compounds of the present invention are used as diagnostic agents to identify and locate primary tumours and their metastases which over-express type A and/or B cholecystokinin receptors, and as therapeutic agents and cholecystokinin agonists or antagonists.

Abstract: The compounds of formula (I) cyclo[X.sub.1.sup.1 --Z.sub.1.sup.2 --X.sub.2.sup.3 --X.sub.3.sup.4 --Z.sub.2.sup.5 --X.sub.4.sup.6 ]cyclo(2.beta.-5.beta.) wherein: X.sub.1 =(D or L)Cys(Y) or (D or L)SeCys(Y), Z.sub.1 =Asp and Z.sub.2 =Dap or Z.sub.1 =Dap and Z.sub.2 =Asp and X.sub.2, X.sub.3 and X.sub.4 =natural or synthetic hydrophobic amino acids, having Z.sub.1, Z.sub.2, X.sub.2, X.sub.3 and X.sub.4 the same D or L configuration; Y=is a glycosidic group selected from the aldo and keto hexoses in the furanose or pyranose form bound to the cysteine with an .alpha. or .beta. thioacetalic bond or a cyclithol or a polyvinyl alcohol or PEG, constituted of 5 to 10 monomeric unities, bound to the cysteine with a thioether bond, are endowed of high solubility and of potent tachykinin-antagonistic activity.

Abstract: Tachyikinin antagonist compounds of the general formula: ##STR1## are described where: X1, X2, X3, X4, X5, and X6 are identical or different and are --NR'--CO-- or --CO--NR"--, where R' is H or C.sub.1-3 alkyl;Y is --CONR--, --NRCO--, OCO, --COO--, --CH.sub.2 --NR--, --NR--CH.sub.2 --, --SS--, --CH.sub.2 --CH.sub.2 --, cis or trans --CH.dbd.CH-- where R is H or C.sub.1-3 alkyl;R1, R2, R3, and R4 are each a hydrophobic group;n and m are identical or different and are each a whole number from 1 to 4. The preparation and pharmaceutical compositions of the compounds are also disclosed.