Described herein are methods for inhibiting the acute relapse or worsening of glomerular disease in response to viral infections associated with the common cold or flu comprising administration of anti-cytokine antibodies, anti-receptor antibodies, soluble receptors, or blocking agents to a subject in need thereof. Also described are methods for depleting a subjects systemic levels of one or more of cytokines IL-2, IL-6, IL-10, INF-γ, or TNFα, or inhibiting the receptors IL-4R or ICAM-1 comprising contacting the cytokines or receptors with one or more anti-cytokine antibodies, anti-receptor antibodies, soluble receptors, or blocking agents.

The present invention relates to immune-stimulating IL-2 fusion proteins comprising antibodies joined to human interleukin-2 (hIL-2). The invention more specifically relates to humanized monoclonal antibodies or fragments thereof joined to hIL-2 or variants thereof and displaying a unique capability of preferentially stimulating cytotoxic T cells and NK cells compared to Treg cells. Furthermore, the invention relates to in vitro and in vivo therapeutic applications of the IL-2 fusion proteins, in particular as an immunotherapy in the treatment of cancer.

De novo designed polypeptides that bind to IL-2 receptor β.sub.c heterodimer (IL-2Rβ.sub.c), IL-4 receptor α.sub.c heterodimer (IL-4Rα.sub.c), or IL-13 receptor α subunit (IL-13Rα) are disclosed, as are methods for using and designing the polypeptides.

The present invention relates to targeted, masked cytokines, comprising a cytokine or functional fragment thereof, a masking moiety, a targeting moiety and a proteolytically cleavable linker. The targeting moiety comprises an antigen-binding moiety that specifically binds to an antigen expressed on the surface of a target cell The masking moiety masks the cytokine or functional fragment thereof thereby reducing or preventing binding of the cytokine or functional fragment thereof to its cognate receptor, but upon proteolytic cleavage of the cleavable linker at a target site, the cytokine or functional fragment thereof becomes activated, which renders it capable or more capable of binding to its cognate receptor.

The present invention provides antibodies, or antigen-binding portions thereof, which specifically bind to IL-2 and reduce the affinity of IL-2 binding to IL-2Rα and IL-2Rβ. The invention further provides a method of obtaining such antibodies and nucleic acids encoding the same. The invention further relates to compositions and therapeutic methods for use of these antibodies for the treatment and/or prevention of autoimmune diseases, disorders or conditions and for immunosuppression, including, but not limited to, administering a complex comprising the antibody and IL-2.

Disclosed herein are methods for treating a lung cancer in a subject in need thereof, comprising administering IL-2 conjugates in combination with the anti-PD-1 antibody or antigen-binding fragment thereof (e.g., pembrolizumab).

The present invention provides antibodies, or antigen-binding portions thereof, which specifically bind to IL-2 and reduce the affinity of IL-2 binding to IL-2Rα and IL-2Rβ. The invention further provides a method of obtaining such antibodies and nucleic acids encoding the same. The invention further relates to compositions and therapeutic methods for use of these antibodies for the treatment and/or prevention of autoimmune diseases, disorders or conditions and for immunosuppression, including, but not limited to, administering a complex comprising the antibody and IL-2.

The present disclosure is generally directed to compositions that include antibodies, e.g., monoclonal, antibodies, antibody fragments, etc., that specifically bind a SIRPA polypeptide, e.g., a mammalian SIRPA or human SIRPA, and use of such compositions in preventing, reducing risk, or treating an individual in need thereof.

The present invention provides an engineered T cell for use in a method of treatment of a proliferative disorder in a mammalian subject, wherein the T cell has been engineered (i) to overexpress BLIMP1 and/or (ii) to knock-out or decrease expression of BCL6. Further provided is a BCL6 inhibitor for use in a method of enhancing immunotherapy in a subject having a proliferative disorder. Also provided are related methods of treatment employing the engineered T cell and/or BCL6 inhibitor.

An interleukin which binds to IL-2 receptor (IL-2R), or a nucleotide sequence encoding therefor, wherein the interleukin or nucleotide sequence is adapted to be targeted to the liver.