The present invention relates to the discovery that etanercept reduces the rate of resistance to intravenous gamma globulin (IVIG) in subjects with acute Kawasaki disease (KD). In certain embodiments, the co-administration of etanercept and IVIG more effectively treats acute KD in subjects older than 12 months than IVIG alone. In other embodiments, the co-administration of etanercept and IVIG ameliorates coronary artery dilation in high risk subjects.

Disclosed herein are conditioning regimens and methods for inducing MHC- or HLA-mismatched mixed chimerism by conditioning a recipient with radiation-free, low-doses of cyclophosphamide (CY), pentostatin (PT), and anti-thymocyte globulin (ATG) prior to transplantation of donor bone marrow cells. In certain embodiments, the donor bone marrow cells may be CD4+ T-depleted bone marrow cells. The conditioning regimens and methods may also include administering one or more populations of conditioning donor cells selected from donor CD4.sup.+ T-depleted spleen cells, donor CD8.sup.+ T cells, and donor G-CSF-mobilized peripheral blood mononuclear cells. The conditioning regimen is clinically acceptable and can be used for treating hereditary hematological diseases and autoimmune diseases, as well as for promoting organ transplantation immune tolerance.

The invention generally provides compositions and methods of treating or preventing an arenavirus infection, using an agent that inhibits binding of an arenavirus glycoprotein 1 (GP1) polypeptide to transferrin receptor 1 (TfR1). The invention also provides methods of designing or identifying therapeutic agents that bind to or target a GP1 receptor-binding site (RBS) to inhibit arenavirus attachment to a cell, and therapeutic agents identified using the methods.

The present invention relates to compositions and methods for the treatment of immunodeficiency (e.g., primary immunodeficiency disease). In particular, the invention provides human plasma immunoglobulin compositions containing select antibody titers specific for a plurality of respiratory pathogens, methods of identifying human donors and donor samples for use in the compositions, methods of manufacturing the compositions, and methods of utilizing the compositions (e.g., for prophylactic administration and/or therapeutic treatment (e.g., passive immunization (e.g., immune-prophylaxis))).

The present disclosure relates to a recombinant endothelial growth factor like 7 (EGFL7) peptide and uses thereof for treating graft-versus-host disease (GVHD).

This invention is in the field of preventing or treating acute exacerbations in chronic lung diseases, such as chronic obstructive pulmonary disease and non-cystic fibrosis bronchiectasis, by administration of polyclonal immunoglobulin to the respiratory tract, in particular by direct application of an aerosolized composition comprising polyclonal immunoglobulin.

Compositions comprising a highly sialylated IgG preparation and methods for treating a patient using such preparations are described. This application is based, in part, on the surprising discovery that a dose of a highly sialylated IgG (hsIgG) preparation that is about 1%-10% of the effective dose for IVIG can be effective for treating disorders that are treated with IVIG.

The present invention relates to compositions and methods for the treatment of immunodeficiency (e.g., primary immunodeficiency disease). In particular, the invention provides human plasma immunoglobulin compositions containing select antibody titers specific for a plurality of respiratory pathogens, methods of identifying human donors and donor samples for use in the compositions, methods of manufacturing the compositions, and methods of utilizing the compositions (e.g., for prophylactic administration and/or therapeutic treatment (e.g., passive immunization (e.g., immune-prophylaxis))).

The present invention provides compositions and methods for preventing an anaphylactoid hypersensitivity reaction in a subject by providing to that subject a combination of antigen-binding IgG and an anti-IgE antibody.

The present invention relates to compositions and methods for the treatment of immunodeficiency (e.g., primary immunodeficiency disease). In particular, the invention provides human plasma immunoglobulin compositions containing select antibody titers specific for a plurality of respiratory pathogens, methods of identifying human donors and donor samples for use in the compositions, methods of manufacturing the compositions, and methods of utilizing the compositions (e.g., for prophylactic administration and/or therapeutic treatment (e.g., passive immunization (e.g., immune-prophylaxis))).