Abstract:
The invention provides new culture media and methods for hPCs' isolation and expansion using said media, which provide significant advantages over known culture media and isolation and expansion methods. These culture media are characterized by the presence of a nitric oxide donor. In addition the culture media of the invention are preferably serum supplemented or serum-free.
Abstract:
El mantenimiento en cultivo de las células pluripotenciales y progenitoras en estado no diferenciado presenta diversos problemas dependiendo del tipo, origen y uso futuro de las células. Actualmente es posible realizar el cultivo de las células pluripotenciales de mamífero en sistemas que mantengan su estado no diferenciado; sin embargo la diferenciación espontánea inherente al cultivo es alta, situación que genera dificultades en los procedimientos para obtener células. El procedimiento objeto de la presente invención permite el mantenimiento y cultivo de células pluripotenciales y progenitoras de mamífero en estado no diferenciado mediante la utilización de óxido nítrico.
Abstract:
The invention provides methods and materials related to heart valves and the treatment of valvular heart disease. Specifically, the invention provides non-murine heart valve cells and heart valve cusps as well as methods for making heart valves. The invention also provides methods and materials for (1) slowing heart valve degeneration, thrombosis, and calcification, (2) treating carcinoid heart disease, (3) identifying inhibitors of heart valve degeneration, thrombosis, and calcification, and (4) determining the safety of drugs.
Abstract:
Described herein are methods, compositions and kits related to manipulating hematopoietic stem cells (HSC) and more particularly to methods, compositions and kits related to increasing the number of hematopoietic stem cells in vitro, ex vivo and/or in vivo. Also described are methods, compositions and kits related to making an expanded population of HSC and methods, compositions and kits related to using the expanded population of HSC. For example, HSC growth may be enhanced by contacting the nascent stem cells or HSC with an agent that stimulates the nitric oxide signaling pathway.
Abstract:
The invention relates to a method of growing CD4+,CD25+ T cells in vitro, comprising culturing CD4+,CD25+ T cells under conditions that inhibit the effect of nitric oxide production on the survival and/or proliferation of CD4+,CD25+ T cells. The invention also relates to methods of increasing tolerance in a subject by administering CD4+, CD25+ T cells grown in vitro.
Abstract:
The present invention provides a novel method for treating leukemia and more particularly acute myelogenous leukemia (AML) in a host comprising administering to the host a therapeutically effective amount of a compound having formula (I): wherein B is cytosine or 5-fluorocytosine and R is selected from the group comprising H, monophosphate, diphosphate, triphosphate, carbonyl substituted with a C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C6-10 aryl, and (a) wherein each Rc is independently selected from the group comprising H, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl and an hydroxy protecting group; and wherein said compound is substantially in the form of the (-) enantiomer.
Abstract:
The invention provides methods and materials related to heart valves and the treatment of valvular heart disease. Specifically, the invention provides non-murine heart valve cells and heart valve cusps as well as methods for making heart valves. The invention also provides methods and materials for (1) slowing heart valve degeneration, thrombosis, and calcification, (2) treating carcinoid heart disease, (3) identifying inhibitors of heart valve degeneration, thrombosis, and calcification, and (4) determining the safety of drugs.
Abstract:
The present invention describes novel compositions and methods to enhance the in vitro and in vivo production of platelets and/or proplatelets from megakaryocytes. The present invention describes compositions comprising megakaryocytes, nitric oxide donors (i.e. compounds that donate, transfer or release nitric oxide, elevate endogenous levels of endothelium-derived relaxing factor, stimulate endogenous synthesis of nitric oxide or are substrates for nitric oxide synthase), and, optionally, at least one thrombopoiesis stimulating factor. The thrombopoiesis stimulating factor is preferably thrombopoietin. The nitric oxide donor is preferable S-nitrosoglutathione. The present invention also describes compositions comprising at least one nitric oxide donor and at least one thrombopoiesis stimulating factor. The present invention also provides methods for treating and/or preventing blood platelet disorders, and for producing platelets and/or proplatelets in vitro and in vivo. The compounds and/or compositions of the present invention can be provided in the form of a pharmaceutical kit.
Abstract:
The present invention provides a novel method for treating leukemia and more particularly acute myelogenous leukemia (AML) in a host comprising administering to the host a therapeutically effective amount of a compound having formula (I): wherein B is cytosine or 5-fluorocytosine and R is selected from the group comprising H, monophosphate, diphosphate, triphosphate, carbonyl substituted with a C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C6-10 aryl, and (a) wherein each Rc is independently selected from the group comprising H, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl and an hydroxy protecting group; and wherein said compound is substantially in the form of the (-) enantiomer.
Abstract:
Insulin producing cells capable of secreting blood glucose regulating hormones, specially insulin, in response to physiological signals, method of production of said cells and uses thereof.