Multitarget Strategy for Primary Podocytopathies

Inclusion Criteria: * Signature of informed consent for study participation * One of the following conditions: 1. Patients with primary podocytopathies (with a histological diagnosis of FSGS or MCD) showing clinical and/or histological evidence of post-transplant recurrence. 2. Patients with primary podocytopathies (with a histological diagnosis of FSGS or MCD) without clinical and/or histological evidence of post-transplant recurrence. 3. Patients with primary podocytopathies in their native kidneys in an active clinical phase of the disease. 4. Patients with podocytopathies presenting clinical features compatible with a secondary form due to another condition. 5. Patients with glomerulonephritis other than primary podocytopathies (e.g., IgA nephropathy, systemic lupus erythematosus, membranous nephropathy). 6. Patients with no history of renal diseases Exclusion Criteria: * Subjects affected by primary podocytopathies or other glomerulonephritides in clinical remission or with ESRD (eGFR \< 15 ml/min) and/or on renal replacement therapy * Individuals unable to understand and consent to the study procedures * Any clinical condition that, according to the investigator's judgment, could compromise patient safety during study participation