Abstract: The present disclosure relates to an isolated antibody or antigen-binding fragment thereof that binds to human Sema3A. The isolated antibody or antigen-binding fragment according to the present disclosure i) binds to human Sema3A of the sequence of SEQ ID NO: 600 with a dissociation constant (KD)?50 nM, ?20 nM, ?10 nM, ?1 nM, or ?0.1 nM; ii) cross-reacts with mouse, cynomolgus, rat, pig and/or dog Sema3A, particularly wherein said isolated antibody or antigen-binding fragment thereof binds to mouse, cynomolgus, rat, pig and/or dog Sema3A with a dissociation constant (KD)?50 nM, ?20 nM, ?10 nM, ?1 nM, or ?0.1 nM; iii) binds to human Sema3A of the sequence of SEQ ID NO: 600 with a binding activity as measured by surface plasmon resonance (SPR) of ?60%, ?70%, ?80%, or ?90%; iv) inhibits the activity of human Sema3A of the sequence of SEQ ID NO: 600 in an in vitro mesangial cell migration assay with an EC50 of ?10 nM, ?5 nM, ?2.