Targeted Angiotensin 1-7 Peptide Conjugates and Formation and Use Thereof

Angiotensin peptide conjugates, methods of forming the conjugates, and methods of using the conjugates are described. Peptide conjugates include an Ang 1-7-based peptide (e.g., Ang 1-7 or a functional equivalent thereof), a linking agent, and a targeting moiety. Linking agents can include polymeric linkers such as PEG linkers, e.g., monodisperse PEG linkers. Targeting moieties can target tissue or cell types. Targeting moieties can include sulfhydryl groups for targeting hydroxyapatite of bone tissue. Conjugates can exhibit extended plasma half-life and can target bone tissue for use as a reservoir for extended delivery of the peptide.