Proteins or antibodies are used to treat melanoma. Specifically, monoclonal antibodies, such as pembrolizumab (Keytruda) and nivolumab (Opdivo), are used in immune checkpoint therapy for treating melanoma.
While there are treatments for lymphoma and hepatitis B that involve proteins or antibodies, melanoma is a prominent example where these therapies are commonly applied. Inherited blindness treatments typically involve gene therapy rather than protein or antibody treatments.