The present disclosure relates to an antibody or an antigen-binding fragment thereof specifically binding to GRP94, and uses thereof. A GRP94 antibody or antigen-binding fragment thereof according to the present disclosure has very high specificity and affinity to GRP94, and excellent growth-inhibiting, infiltration-inhibiting, and angiogenesis-inhibiting effects on colorectal cancer cell lines, and thus can be useful as a composition for treating cancer, inhibiting cancer metastasis, and inhibiting angiogenesis.

Disclosed are a composition and method for the diagnosis of diseases accompanied by impaired glucose tolerance, comprising a material for ITIH1 detection. The composition and method according to the present application enable a relatively sensitive response even to small changes in blood sugar according to various stimulants in a hyperglycemic situation as compared to glycated hemoglobin (HbA1c) which is an existing diagnostic marker widely used for patients with diabetes, which is a typical disease accompanied by impaired glucose tolerance, and thus can more precisely detect blood sugar changes under various stress situations.

Disclosed are a composition and method for the diagnosis of diseases accompanied by impaired glucose tolerance, comprising a material for ITIH1 detection. The composition and method according to the present application enable a relatively sensitive response even to small changes in blood sugar according to various stimulants in a hyperglycemic situation as compared to glycated hemoglobin (HbA1c) which is an existing diagnostic marker widely used for patients with diabetes, which is a typical disease accompanied by impaired glucose tolerance, and thus can more precisely detect blood sugar changes under various stress situations.

Disclosed are compositions and methods for the detection of a Flavivirus infection. In some embodiments, the method comprises detecting a recent Flavivirus infection by measuring the amount of anti-NS1 IgG3. In other embodiments, the method comprises detecting a prior Dengue virus infection in a subject previously immunized with a Dengue virus vaccine comprising one or more non-Dengue Flavivirus proteins.

Disclosed are compositions and methods for the detection of a Flavivirus infection. In some embodiments, the method comprises detecting a recent Flavivirus infection by measuring the amount of anti-NS1 IgG3. In other embodiments, the method comprises detecting a prior Dengue virus infection in a subject previously immunized with a Dengue virus vaccine comprising one or more non-Dengue Flavivirus proteins.

The present invention relates to the field of ophthalmology. More specifically, the present invention provides compositions and methods useful for screening for drugs to treat age-related macular degeneration (AMD) including geographic atrophy (GA). In one embodiment, a method comprises the steps of (a) administering a drug to a mammal, wherein the mammal comprises a rat or a mouse; (b) enucleating the eyes of the mammal; (c) removing the anterior eye and excising the retina from the eye, wherein the eye comprises an eyecup that comprises choroidal mast cells (MCs); and (d) measuring mast cell degranulation. In an alternative embodiment, a method of the present invention can comprise the steps of (a) contacting an eyecup of a mammal with a drug, wherein the eyecup comprises choroidal mast cells; and (b) measuring MC degranulation.

The present invention relates to the field of ophthalmology. More specifically, the present invention provides compositions and methods useful for screening for drugs to treat age-related macular degeneration (AMD) including geographic atrophy (GA). In one embodiment, a method comprises the steps of (a) administering a drug to a mammal, wherein the mammal comprises a rat or a mouse; (b) enucleating the eyes of the mammal; (c) removing the anterior eye and excising the retina from the eye, wherein the eye comprises an eyecup that comprises choroidal mast cells (MCs); and (d) measuring mast cell degranulation. In an alternative embodiment, a method of the present invention can comprise the steps of (a) contacting an eyecup of a mammal with a drug, wherein the eyecup comprises choroidal mast cells; and (b) measuring MC degranulation.

Recurrent tonsillitis disease (RT) is a common indication for pediatric tonsillectomy, the most frequent childhood surgery. It is unknown why some children develop RT. The present disclosure demonstrates that RT tonsils exhibit significantly smaller germinal centers than non-RT tonsils, concomitant with a bias against Group A Streptococcus (GAS)-specific germinal center follicular helper CD4.sup.+ T cells (GC Tfh), and significantly reduced antibodies to the GAS virulence factor SpeA. The present disclosure also shows a significant immunogenetic component to this disease, with the identification of ‘at risk’ and ‘protective’ HLA alleles for RT. Finally, the present disclosure identifies a new cell type, granzyme B+GC Tfh cells, which are activated by SpeA, are significantly more abundant in RT GC Tfh cells, and have the capacity to kill B cells, thus, providing a window into the immunology and genetics of a classic childhood disease and identifies a new type of pathogenic T cell.

Recurrent tonsillitis disease (RT) is a common indication for pediatric tonsillectomy, the most frequent childhood surgery. It is unknown why some children develop RT. The present disclosure demonstrates that RT tonsils exhibit significantly smaller germinal centers than non-RT tonsils, concomitant with a bias against Group A Streptococcus (GAS)-specific germinal center follicular helper CD4.sup.+ T cells (GC Tfh), and significantly reduced antibodies to the GAS virulence factor SpeA. The present disclosure also shows a significant immunogenetic component to this disease, with the identification of ‘at risk’ and ‘protective’ HLA alleles for RT. Finally, the present disclosure identifies a new cell type, granzyme B+GC Tfh cells, which are activated by SpeA, are significantly more abundant in RT GC Tfh cells, and have the capacity to kill B cells, thus, providing a window into the immunology and genetics of a classic childhood disease and identifies a new type of pathogenic T cell.

The invention is concerned with a method of predicting response to a PD-1 axis inhibitor such as anti-PD-L1 antibody by determining the abundance of dendritic cells (DCs) in a tumor tissue sample. The abundance of DCs characterized by enhanced expressions of XCR1, IRF8, BATF3 and FLT3 predicts clinical response to the PD-L1 blockade 5 treatment.