Therapeutic uses for nitric oxide inhibitors

A - Human Necessities – 61 – K

Patent

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Details

A61K 31/131 (2006.01) A61K 31/155 (2006.01) A61K 31/198 (2006.01) A61K 31/223 (2006.01) A61K 35/28 (2006.01) A61P 7/00 (2006.01) A61P 7/06 (2006.01) C12N 5/06 (2006.01)

Patent

CA 2374209

Nitric oxide (NO) is an important growth regulator in an intact developing organism. The present invention relates to a method of increasing in a mammal a population of hematopoietic stem cells which are capable of undergoing normal hematopoiesis, differentiation and maturation in hematopoietic tissue, wherein the hematopoietic tissue is contacted with multiple doses of at least one inhibitor of NO, such as inhibitors of nitric oxide synthase (NOS). The present invention also relates to a method of increasing a population of cells in S phase in a tissue of a mammal, comprising contacting the tissue with multiple doses of at least one inhibitor of NO, such as an inhibitor of NOS. The invention also pertains to a method of regenerating tissue in an adult mammal comprising contacting a selected tissue (e.g., blood, skin, bone and digestive epithelium), or precursor cells, with multiple doses of at least one inhibitor of NO, thereby inhibiting differentiation and inducing proliferation of cells of the tissue.

L'oxyde nitrique (NO) constitue un important régulateur de croissance dans un organisme en développement intact. Cette invention se rapporte à un procédé permettant d'accroître chez un mammifère la population de cellules souches hématopoïétiques qui sont capables de subir une hématopoïèse, une différenciation et une maturation normales du tissu hématopoïétique, lequel est mis en contact avec des doses multiples d'au moins un inhibiteur de NO, tel que des inhibiteurs d'oxyde nitrique synthase (NOS). Cette invention se rapporte également à un procédé qui sert à augmenter la population de cellules en phase S dans un tissu d'un mammifère et consistant à cet effet à mettre en contact le tissu avec des doses multiples d'au moins un inhibiteur de NO, tel qu'un inhibiteur de NOS. Cette invention concerne en outre un procédé servant à régénérer des tissus chez un mammifère adulte et consistant à mettre en contact un tissu sélectionné (par exemple sang, peau, os et épithélium digestif) ou des cellules précurseurs, avec des doses multiples d'au moins un inhibiteur de NO, qui inhibe la différenciation et induit la prolifération de cellules de ce tissu.

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