TB5 is primarily used in the field of biochemistry and molecular biology as a synthetic peptide. It is often employed in research to study cellular processes, particularly those related to cell signaling and growth regulation. TB5 is known for its potential role in modulating immune responses, making it a subject of interest in immunology studies. Additionally, it has been explored for its possible applications in regenerative medicine, where it may aid in tissue repair and wound healing. Researchers also investigate its effects on stem cell differentiation, which could have implications for developing therapies for various diseases.