Abstract: The present disclosure is generally directed to compositions that include antibodies, e.g., monoclonal, chimeric, humanized antibodies, antibody fragments, etc., that specifically bind on or more epitopes within a Siglec-5 protein, e.g., human Siglec-5 or a mammalian Siglec-5, and use of such compositions in preventing, reducing risk, or treating an individual in need thereof.

Abstract: An optimization method for capturing proteins by multi-column continuous chromatography (MCC), including the following steps: step 1, under the conditions of a set loading protein concentration and an arbitrary load residence time, performing a single time of protein breakthrough experiment to obtain a protein breakthrough curve; step 2, under a set breakthrough percentage for a target protein, integrating the breakthrough curve to obtain a single-column loading capacity and establishing a linear relationship between the interconnected load time and the load residence time; step 3, solving for the optimal number of operating columns for capturing proteins by MCC based on step 2; step 4, solving for the optimal load residence time for capturing proteins by MCC based on step 2, step 3; and step 5, solving for the maximum productivity of capturing proteins by MCC based on step 4.

Abstract: The invention pertains to methods of purifying fusion proteins, in particular TNFR:Fc fusion proteins. Methods disclosed herein can be used to produce highly pure TNFR:Fc fusion proteins (e.g., etanercept) having a biological activity by removing hard to separate product related impurities such as clipped and/or mis-fold/aggregated TNFR:Fc fusion proteins.

Abstract: Methods of enhancing efficiency of downstream chromatography steps for purification of proteins comprising: (a) passing a composition comprising a polypeptide of interest and various contaminants through an ion exchange membrane, wherein the polypeptide and the membrane have opposite charge, at operating conditions comprised of a buffer having a pH sufficiently distinct from the pi of the polypeptide to enhance the charge of the polypeptide and a low ionic strength effective to prevent the shielding of charges by buffer ions, which cause the membrane to bind the polypeptide and at least one contaminant, (b) overloading the ion exchange membrane such that at least one contaminant remains bound to the membrane while the polypeptide of interest is primarily in the effluent; (c) collecting the effluent from the ion exchange membrane comprising the polypeptide of interest; (d) subjecting the membrane effluent comprising the polypeptide of interest to a purification step of similar charge as the previous membrane,

Abstract: The disclosure relates to antibodies and antigen-binding fragments thereof that bind to Stem Cell Factor (SCF). The antibodies and antigen-binding fragments thereof specifically bind to SCF248. The disclosure further relates to methods for making the antibodies, and to methods of use of the antibodies including methods of treatment for inflammatory and/or fibrotic diseases and disorders.

Abstract: Monocytopoiesis is a hematological process that supplies the periphery with monocytes and subsequently with macrophages and monocyte-derived dendritic cells. Typically, monocytes circulate in the bloodstream for a very short time before undergoing apoptosis, however, stimulatory signals can trigger monocyte survival by inhibiting the apoptotic pathway, and thus contribute to the maintenance of the inflammatory response. Accordingly, there is a need for methods and pharmaceutical compositions for modulating monocytopoiesis. Now, the inventors show that type I interferons signaling promote the differentiation of monocyte-derived phagocytes at the level of their progenitors. Importantly, IFN-alpha and -beta were found to efficiently generate the development of monocyte-derived antigen-presenting cells while having no impact on the precursor activity of conventional dendritic cells. Accordingly, modulators of type I interferon (e.g.

Abstract: An antibody targeting Galectin-9 is provided as are methods of using the same treatment of chronic immune conditions such as infections, inflammatory diseases and cancer, in particular malignant mesothelioma.

Abstract: Herein is reported a method for the final filtration of concentrated polypeptide solutions comprising the combination of two immediately consecutive filtration steps with a first filter of 3.0 ?m and 0.8 ?m pore size and a second filter of 0.45 ?m and 0.22 ?m pore size.

Abstract: Methods are provided for isolation of immunoglobulin G (IgG) from plasma, where IgG is initially fractioned by salt precipitation, followed by successive ion exchange steps in which IgG appears in unbound, flow-through fractions of the ion exchange steps. Some embodiments employ successive anion exchange steps. Other embodiments employ an anion exchange step followed by application of flow-through of the anion exchange step to a cation exchange step, with IgG collected in flow-through fractions from the cation exchange step. IgG is collected at high yield (typically about 75% or greater) and high purity. Avoidance of binding and elution from chromatography media simplifies processing and scale up without sacrificing IgG quality or yield.

Abstract: Embodiments of the present disclosure are directed to methods for preparing a target polypeptide from a mixture including the target polypeptide. The method may include contacting the mixture to a hydrophobic interaction chromatography (HIC) apparatus including multiple chromatographic zones. The method may further include passing the target polypeptide through the outlets of at least a first zone and a second zone of the HIC apparatus. A residence time for the mixture including the target polypeptide in a first zone may be approximately the same as a residence time of one or more mobile phases in the second zone.

Abstract: The present invention provides a sensitive and specific indirect homogeneous mobility shift assay using size exclusion chromatography to measure biologics such as vedolizumab and ustekinumab in a patient sample. The assays of the present invention are particularly advantageous for detecting the presence or level of biologics that target complex or large antigens including cell surface proteins, transmembrane proteins, heavily glycosylated proteins, and multimeric proteins, as well as antigens that cannot be purified, impure antigens, and partially or substantially purified antigens. The present invention also provides isolated soluble ?4?7 integrin heterodimers and isolated soluble IL-12p40 monomers that are suitable for use in the indirect assays described herein.

Abstract: The present invention relates to an antibody that specifically binds to death receptor 5 (DR5) and has a function of killing cancer cells. Specifically, provided are an anti-DR5 antibody or antigen-binding fragment thereof, and a use of the antibody or antigen-binding fragment for preventing or treating cancer. The present invention is characterized in that the anti-DR5 antibody or antigen-binding fragment thereof is improved in terms of affinity to DR5, stability, and an effect of killing cancer cells.

Abstract: This disclosure relates to IL-2 variants and methods of use thereof, including methods of treating or inhibiting a cancer or tumor. The IL-2 variants may have reduced ability in binding to or activating IL-2R?. The IL-2 variants may retain the ability in binding to or activating IL-2R? and/or IL-2R??. In addition, the IL-2 variants may have decreased Treg activity but maintain the capacity to activate NK cells and T effector cells.

Abstract: The present invention relates to recombinant multi-specific proteins comprising binding agents with binding specificity for different targets, such as, e.g. CD3, CD33, CD123 and CD70. In addition, the invention relates to nucleic acids encoding such multi-specific proteins, pharmaceutical compositions comprising such proteins or nucleic acids, and the use of such binding proteins, nucleic acids or pharmaceutical compositions in methods for treating or diagnosing diseases, such as cancer, e.g. acute myeloid leukaemia (AML), in a mammal, including a human.

Abstract: Provided are novel anti-?v?6 antibodies and antibody-drug conjugates and methods of using such anti-?v?6 antibodies and antibody-drug conjugates to treat cancer.

Abstract: Described herein are antibodies (e.g., single chain variable fragment (scFv) antibodies) and constructs comprising antibody moieties that bind to the extracellular domain of CD22 or a portion thereof (e.g., SEQ ID NO: 205 or a portion thereof). Also provided herein are methods of using the same or compositions thereof for the therapeutic treatment of diseases characterized by CD22 expression, in particular, B-cell lymphomas and leukemias.

Abstract: The present invention elates to the applications of neuregulin in the preparation of drugs for preventing, treating or delaying the ischemia-reperfusion injury (IRI) in mammals, particularly in humans. In particular, the present invention provides the neuregulin based compositions and methods for preventing, treating or delaying the myocardial ischemia-reperfusion injury. Specifically, although it has been shown in cytological experiments, animal studies and clinical trials that neuregulin can improve the cytoskeleton structure of myocytes and cardiac function, it is still unknown whether neuregulin has effects on the myocardial ischemia-reperfusion injury. The present invention proves that neuregulin reduces the infarction size in the rat IRI model, which indicates that neuregulin can be used for preventing, treating or delaying the myocardial ischemia-reperfusion injury.

Abstract: Herein is reported the use of an immobilized non-covalent complex of a neonatal Fc receptor (FcRn) and beta-2-microglobulin (b2m) as affinity chromatography ligand in general and, for example, for the determination of the in vivo half-live of an antibody by determining the ratio of the retention times of the antibody and a reference antibody.

Abstract: The present invention provides novel biomarkers for regulatory T cells (Treg) function and Parkinson's disease.

Abstract: The present disclosure relates to, inter alia, compositions containing an inhibitor of human complement and use of the compositions in methods for treating or preventing complement-associated disorders. In some embodiments, the inhibitor is chronically administered to patients. In some embodiments, the inhibitor is administered to a patient in an amount and with a frequency to maintain systemic complement inhibition and prevent breakthrough. In some embodiments, the compositions contain an antibody, or antigen-binding fragment thereof, that binds to a human complement component C5 protein or a fragment of the protein such as C5a or C5b.