Therapeutic use of the smr1 protein and active derivatives...

C - Chemistry – Metallurgy – 07 – K

Patent

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Details

C07K 14/72 (2006.01) A61K 31/59 (2006.01) A61K 38/08 (2006.01) A61K 38/22 (2006.01) A61K 38/23 (2006.01) A61K 38/29 (2006.01) C07K 7/06 (2006.01) C07K 14/47 (2006.01) C07K 14/475 (2006.01) C07K 14/575 (2006.01) G01N 33/58 (2006.01) G01N 33/68 (2006.01) A61K 38/00 (2006.01)

Patent

CA 2281912

The present invention pertains to the use of a peptide molecule consisting in a maturation product of SMR1 (Submandibular rat protein 1) of structural formula QHNPR, as well as the biologically active derivatives of the said peptide, for preventing or treating diseases associated with a mineral ion imbalance in a human or an animal body. More particularly, the present invention relates to the therapeutic use of the above-cited molecules for preventing or treating an hydromineral imbalance in organs and tissues such as kidney, bone, dental enamel, dental ivory, gut matrix, pancreas or glandular gastric mucosa. This invention also deals with therapeutic compositions comprising a pharmaceutically active amount of the above-described therapeutic molecules as well as with therapeutic methods using the said therapeutic compositions. Finally, the present invention relates to processes for selecting ligand molecules that possess an agonist or an antagonist biological activity on the target receptor of the QHNPR pentapeptide as well as to the selected ligand molecules themselves.

La présente invention concerne l'utilisation d'une molécule peptidique consistant en un produit de maturation de SMR1 (protéine 1 sous-maxillaire du rat) de formule structurelle QHNPR, ainsi que les dérivés de ce peptide actifs sur le plan biologique, dans la prévention ou le traitement de maladies associées à un déséquilibre en ions minéraux, chez l'homme ou l'animal. Cette invention concerne notamment l'utilisation thérapeutique des molécules ci-dessus, aux fins de prévention ou de traitement d'un déséquilibre hydrominéral dans des organes et tissus comme les reins, les os, l'émail dentaire, l'ivoire dentaire, la matrice intestinale, le pancréas ou la tunique muqueuse de l'estomac. Cette invention concerne encore des compositions thérapeutiques contenant une dose active sur le plan pharmacologique des molécules thérapeutiques ci-dessus décrites, de même que des procédés thérapeutiques dans lesquels on utilise de telles compositions. L'invention concerne enfin des procédés de sélection de molécules coordinats possédant une activité biologique, agoniste ou antagoniste, sur le récepteur cible du pentapeptide QHNPR, de même que ces molécules elles-mêmes.

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