The present invention relates to a method for assaying antigen-specific T-cell responses through boosted flow cytometry and boosted ELISPOT technologies that are based on the use of specific combinations of monoclonal antibodies to stain simultaneously cytokines that in their combination identify specific T-cell polarization profiles. The method allows the identification of Tfc CD8+ T cell responses unrecognized so far.

Provided are various embodiments relating to IL13R/IL4R heterodimeric proteins derived from companion animal species and that bind to IL13 and/or IL4. Such heterodimeric proteins can be used in methods to treat IL13 and/or IL4-induced conditions in companion animals, such as canines, felines, and equines.

The disclosure relates to methods for redirecting an active form of an endogenous cytokine to a target cell or target tissue of interest in a biological system or subject in need thereof by administering a multi-specific binding molecule comprising (a) a binding domain that specifically binds to an active form of a cytokine and (b) a binding domain that specifically binds to an epitope on a molecule that is a marker on a target cell or tissue, wherein the multi-specific binding molecule, when bound to the cytokine, does not block or only partially blocks, the ability of the cytokine to bind to and agonize a cognate receptor for the cytokine.

The disclosure relates to methods for redirecting an active form of an endogenous cytokine to a target cell or target tissue of interest in a biological system or subject in need thereof by administering a multi-specific binding molecule comprising (a) a binding domain that specifically binds to an active form of a cytokine and (b) a binding domain that specifically binds to an epitope on a molecule that is a marker on a target cell or tissue, wherein the multi-specific binding molecule, when bound to the cytokine, does not block or only partially blocks, the ability of the cytokine to bind to and agonize a cognate receptor for the cytokine.

The present invention relates to the field of medical diagnostics. In particular, it relates to methods and kits for determining treatment efficacy of allergen immunotherapy, and for measuring or detecting biomarkers in a subject undergoing allergen immunotherapy. For example, the invention provides a method of determining efficacy of an allergen immunotherapy in a subject, the method comprising: providing a first sample obtained from a subject before receiving allergen immunotherapy; providing a second sample obtained from the subject who has received, or who is receiving, allergen immunotherapy; wherein the first and second samples comprise B-cells; and determining the level or amount of one or more biomarkers in B-cells, preferably allergen-specific B-cells, in the first and second samples, wherein the biomarkers are selected from the group consisting of IgE, CD29, CD69, IL13R, CD99, IgD, CXCR4, FCRL3, FCRL2, FCRL5, SIGLEC10, CDIc, CD23, and IL4R; wherein an increase in the level or amount of one or more biomarkers selected from IgE, CD29, IL13R, CD99, FCRL3, FCRL2, SIGLEC10, CD1c, CD23, and IL4R in B-cells in the second sample compared to the first sample indicates efficacy of an allergen immunotherapy in a subject, and/or wherein a decrease in the level or amount of one or more biomarkers selected from CD69, IgD, CXCR4, FCRL3, FCRL2, FCRL5, CD1c, CD23, IL4R in B-cells in the second sample compared to the first sample indicates efficacy of an allergen immunotherapy in a subject.

Provided herein is a method for measuring the levels of chronic inflammaging (SCI) of a subject. In some embodiments, the method may comprise measuring the amount of two or more of the proteins C-X-C motif ligand 9 (CXCL9), TNF-related apoptosis-inducing ligand (TRAIL), interferon gamma (IFNG), eosinophil chemotactic protein (EOTAXIN) and growth-regulated alpha protein (GROA) in a sample (e.g., blood serum) from the subject calculating a score based on the weighted amounts of each of those proteins.

Compositions and methods are disclosed herein for the treatment of neurocognitive disorders or central nervous system (CNS) disorders such as Alzheimer's disease (AD) and congenital heart diseases such as hypoplastic left heart syndrome (HLHS) with allogeneic mesenchymal stem cells (MSCs). The methods of treatment involve an administration of a composition of allogeneic mesenchymal stem cells to a subject in need thereof, wherein the effectiveness of the treatment methods can be determined through the measurement of specific biomarkers.