Abstract: The invention is related to CD20 antibodies with improved characteristics. Some embodiments describe antibodies comprising a mouse IgG2; a human IgG1, IgA1 or IgA2 constant region and a variable domain that can bind the epitope “EPANpSEK” on human CD20 expressed on Ramos cells and which antibody has an increased PCD functionality when compared to Rituximab with a constant region of the same isotype.

Abstract: CD20 antibodies with improved characteristics. Some embodiments describe antibodies comprising a mouse IgG2; a human IgG1, IgA1 or IgA2 constant region and a variable domain that can bind the epitope “EPANpSEK” (SEQ ID NO:31) on human CD20 expressed on Ramos cells and which antibody has an increased PCD functionality when compared to Rituximab with a constant region of the same isotype.

Abstract: The present invention relates to active agents or compounds as well as pharmaceutical compositions comprising said compounds, which are capable of reducing or inhibiting or blocking the enzymatic activity of the glutaminyl-peptide cyclotransferase (QPCT) protein, the glutaminyl-peptide cyclotransferase-like protein (QPCTL) protein, or combinations thereof or are capable of reducing or inhibiting the expression of QPCT gene, the QPCTL gene, or combinations thereof. Also provided are methods for screening or selecting for said compounds. The present invention further relates to a pharmaceutical composition comprising a first active agent for use in a method of treating a condition in a subject that would benefit from reducing the signaling or the binding between SIRP? and CD47 in the subject (e.g. cancer), wherein the method of treating comprises reducing expression or enzymatic activity of QPCTL, QPCT, or combinations thereof in the cell with CD47 on the surface.

Abstract: Provided herein are therapeutic agents, pharmaceutical compositions, and methods comprising an IgA constant region. The compositions and methods described herein facilitate binding of an antibody construct comprising an IgA constant domain to CD47 and an antigen for instance a tumor related antigen such as CD20 or CD19.

Abstract: The invention provides means and methods for stimulating neutrophil-mediated killing of CD47 expressing cells. Methods may include contacting neutrophils with cells that express CD47 and another extracellular membrane-bound antigen in the presence of a first and a second binding moiety, wherein said first binding moiety specifically binds a myeloid IgA receptor (CD89) and said antigen, and wherein said second binding moiety specifically binds CD47 and/or SIRP? and blocks CD47 mediated signaling of SIRP? in said neutrophil.

Abstract: The present invention relates to active agents or compounds as well as pharmaceutical compositions comprising said compounds, which are capable of reducing or inhibiting or blocking the enzymatic activity of the glutaminyl-peptide cyclotransferase (QPCT) protein, the glutaminyl-peptide cyclotransferase-like protein (QPCTL) protein, or combinations thereof or are capable of reducing or inhibiting the expression of QPCT gene, the QPCTL gene, or combinations thereof. Also provided are methods for screening or selecting for said compounds. The present invention further relates to a pharmaceutical composition comprising a first active agent for use in a method of treating a condition in a subject that would benefit from reducing the signaling or the binding between SIRP? and CD47 in the subject (e.g. cancer), wherein the method of treating comprises reducing expression or enzymatic activity of QPCTL, QPCT, or combinations thereof in the cell with CD47 on the surface.