Abstract: Methods and compositions for treating acute kidney injury in a subject are provided. The methods include measuring or having measured a level of soluble urokinase plasminogen activator receptor (suPAR) in a biological sample from the subject, determining or having determined the level of suPAR in the sample compared to a control suPAR level, and administering a therapeutically effective amount of an agent that antagonizes soluble urokinase plasminogen activator receptor (suPAR) to the subject having an elevated level of suPAR relative to the control suPAR level.

Abstract: Methods treating an aberrant activation of ?v?3 integrin are provided. The methods include administering a therapeutically effective amount of inducible co-stimulator ligand (ICOSL) polypeptide to a subject in need thereof. Methods of identifying subjects having a kidney injury are also provided.

Abstract: Proteinuria markers and methods for their use are provided. These markers find many uses, including in diagnosing proteinuria, and treating proteinuria. In addition, reagents, devices and kits thereof that find use in practicing the subject methods are provided.

Abstract: The following disclosure generally relates to methods of culturing podocytes in vitro. The cultures can be used for drug screening (such as medium or high throughput drug screening), and for studying molecular pathways involved in glomerular diseases. The disclosure also provides methods for analyzing the healthiness of podocytes in a cell culture. The disclosure also relates to diagnosis of kidney diseases.

Abstract: The present invention is directed to methods of treating proteinuric diseases by the administration of av?3 integrin inhibitors.

Abstract: Methods for diagnosing suPAR-?3 integrin driven kidney diseases that can include detection of one, two or more variables, e.g., biomarkers (plasma suPAR levels, urine IL6 levels) and/or bioassays (?3 integrin activation and presence of distinct suPAR fragments/isoforms in plasma).

Abstract: Methods of treating kidney diseases or disorders and methods of identifying agents for treatment of kidney diseases or disorders are provided. The method includes administering to a subject in need thereof, an effective amount of an agent which inhibits myeloid progenitor cells in the subject from producing soluble urokinase receptor (suPAR). The method includes administering the agent to a patient, where the patient, has an increased number of Gr-1 low cells relative to a control.

Abstract: Focal segmental glomerulosclerosis (FSGS) is a common cause of proteinuric kidney disease, which comprises both native and transplanted kidneys. Treatment was limited in the past due to the complicated pathogenesis of FSGS, including previously unidentified serum factors. Here, serum soluble urokinase receptor (suPAR) is reported to be elevated in FSGS patients but not in patients with other primary glomerular diseases. Higher pre-transplantation suPAR levels are associated with risk for FSGS recurrence in kidney grafts. Renal disease only develops when suPAR sufficiently activates podocyte ?3 integrin. Thus, disease pathogenesis can be stopped or slowed by ex vivo removal of suPAR from a subject's circulation. Removal may be measured by comparing the level (e.g., amount or concentration) of suPAR before and after such treatment.

Abstract: Methods of treating kidney disease and protecting podocytes from injury are provided. Methods of screening agents for the treatment of kidney disease are also provided. In addition, methods of identifying structural or functional defects in a patient's podocytes and methods of identifying kidney disease causing agents in a patient's biological sample are also provided.

Abstract: This invention generally relates to methods and biomarkers for assessing a subject's susceptibility to developing diabetic nephropathy, or for assessing the progression of diabetic nephropathy in a subject. The invention also relates to methods of treating diabetic nephropathy, and methods for identifying a candidate agent for treating diabetic nephropathy.

Abstract: The present invention is directed to methods of treating proteinuric diseases by the administration of av?3 integrin inhibitors.

Abstract: Proteinuria markers and methods for their use are provided. These markers find many uses, including in diagnosing proteinuria, prognosing proteinuria, and treating proteinuria. In addition, reagents, devices and kits thereof that find use in practicing the subject methods are provided.

Abstract: The present invention is directed to methods of treating proteinuric diseases by the administration of av?3 integrin inhibitors.

Abstract: The following disclosure generally relates to methods of culturing podocytes in vitro. The cultures can be used for drug screening (such as medium or high throughput drug screening), and for studying molecular pathways involved in glomerular diseases. The disclosure also provides methods for analyzing the healthiness of podocytes in a cell culture. The disclosure also relates to diagnosis of kidney diseases.

Abstract: Compositions are directed to the treatment of kidney diseases in a cell-specific manner. Methods of treating kidney diseases comprise the use of the compositions. Assays for identification of further compounds are provided. Biomarkers for predisposition to kidney diseases and diagnosis are indentified.

Abstract: This invention relates generally to the treatment of cathepsin or dynamin mediated diseases, such as proteinuria, cancer, and cognitive disease and related products. Diagnostic and other assays are also provided, as well as methods for podocyte cell gene transfer.

Abstract: Methods and compositions are provided for diagnosing and treating a diabetic kidney disease (DKD) in an individual. In aspects of the methods, the levels of soluble circulating urokinase receptor (suPAR) in the blood are measured to predict a DKD, diagnose a DKD, or provide a prognosis pertaining to a DKD. In addition, reagents, devices and kits thereof that find use in practicing the subject methods are provided.

Abstract: Focal segmental glomerulosclerosis (FSGS) is a common cause of proteinuric kidney disease, which comprises both native and transplanted kidneys. Treatment was limited in the past due to the complicated pathogenesis of FSGS, including previously unidentified serum factors. Here, serum soluble urokinase receptor (suPAR) is reported to be elevated in FSGS patients but not in patients with other primary glomerular diseases. Higher pre-transplantation suPAR levels are associated with risk for FSGS recurrence in kidney grafts. Renal disease only develops when suPAR sufficiently activates podocyte ?3 integrin. Thus, disease pathogenesis can be stopped or slowed by ex vivo removal of suPAR from a subject's circulation. Removal may be measured by comparing the level (e.g., amount or concentration) of suPAR before and after such treatment.

Abstract: This invention relates generally to the treatment of cathepsin or dynamin mediated diseases, such as proteinuria, cancer, and cognitive disease and related products. Diagnostic and other assays are also provided, as well as methods for podocyte cell gene transfer.

Abstract: Compositions are directed to the treatment of kidney diseases in a cell-specific manner. Methods of treating kidney diseases comprise the use of the compositions. Assays for identification of further compounds are provided.