Provided are proteins and polynucleotides, complexes and compositions containing the proteins, and methods for their use in administration to subjects and for disease treatment. Among the provided proteins and complexes are complexes containing a TGF-beta associated with immunoglobulins (such as IgGs) or functional portions thereof including Fc portions, such as by non-covalent bonds. The provided complexes include those in which the immunoglobulin portion binds to inhibitory Fcγ receptors to a greater degree than to activating Fcγ receptors. The provided complexes further include those in which the immunoglobulin portion bind to activating Fcγ receptors to a greater degree than to inhibitory Fcγ receptors. The complexes and compositions can be used for administration to subjects, such as for increasing immunity or decreasing inflammation, such as for treating diseases including autoimmune diseases and cancer.
