Abstract: GDF promoters (e.g., GDF-8 promoters) are described. Also described are methods of using the GDF promoters to regulate tissue-specific gene expression, and to identify compounds which regulate GDF expression.

Abstract: Multispecific multivalent molecules which are specific to an Fc receptor (FcR), and therapeutic uses and therapeutic uses and methods for making the molecules are described.

Abstract: Multispecific multivalent molecules which are specific to an Fc receptor (FcR), and therapeutic uses and therapeutic uses and methods for making the molecules are described.

Abstract: Methods for treating diabetes by administering an inhibitor of GDF-8, or a related member of Transforming Growth Factor-beta (TGF-&bgr;) superfamily of structurally-related growth factors (e.g., GDF-11) are disclosed. Also disclosed are methods for upregulating expression of hexose transporters, such as GLUT4 and GLUT1, in a subject by administering an inhibitor of GDF-8. Also disclosed are methods for increasing glucose uptake by cells in a subject, by administering an inhibitor of GDF-8.

Abstract: Multispecific molecules which target immune cells are disclosed. The molecules are “multispecific” because they bind to multiple (two or more), distinct targets, one of which is a molecule on the surface of an immune cell. Multispecific molecules of the invention include molecules comprised of at least one portion which binds to a molecule on an effector cell, such as an Fc receptor, and at least one portion (e.g., two, three, four or more portions) which binds to a different target, such as an antigen on a tumor cell or a pathogen. Multispecific molecules of the invention also include antigen “multimer complexes” comprised of multiple (i.e., two or more) portions which bind to a molecule on an antigen presenting cell (APC), such as an Fc receptor, linked to one or more antigens. These multimer complexes target antigens, such as self-antigens, to APCs to induce and/or enhance internalization (endocytosis), processing and/or presentation of the antigen by the APC.

Abstract: Therapeutic multispecific compounds comprised of anti-Fc&agr; receptor antibodies and methods of use are provided.

Abstract: Multispecific multivalent molecules which are specific to an Fc receptor (FcR), and therapeutic uses and therapeutic uses and methods for making the molecules are described.

Abstract: Disclosed are methods of stimulating in a subject an immune response to an antigen to which the immune response is targeted. This method includes the step of administering to the subject a binding agent which binds a surface receptor of an antigen-presenting cell, in some instances without being blocked substantially by the natural ligand for the surface receptor, and an antigen to which the immune response is targeted, in a physiologically acceptable medium to the subject. Also disclosed are molecular complexes including the binding agent coupled to an antigen.

Abstract: Disclosed are methods of stimulating in a subject an immune response to an antigen to which the immune response is targeted. This method includes the step of administering to the subject a binding agent which binds a surface receptor of an antigen-presenting cell, in some instances without being blocked substantially by the natural ligand for the surface receptor, and an antigen to which the immune response is targeted, in a physiologically acceptable medium to the subject. Also disclosed are molecular complexes including the binding agent coupled to an antigen.

Abstract: Gene therapy methods and compositions for high level expression of anti-sickling globin proteins in erythroid cells for treating Sickle Cell disease are described.