Abstract

Biologic therapies targeting aberrant immune responses in cutaneous and systemic autoimmune diseases have had a significant impact on reducing mortality and morbidity for conditions that could not be treated with conventional drugs. However, their systemic effects increase vulnerability to infections, malignancies, and development of secondary autoimmune complications, underscoring the need for localized, targeted delivery of biologics. The article by Ying-Chao et al. (2022) titled “A keratinocyte-tethered biologic enables location-precise treatment in mouse vitiligo” highlights the potential for using bispecific antibodies (BsAbs) as a novel method of localized drug delivery through tethering, where one of the two antibody specificities is used to target a structural surface protein to anchor the biologic within the tissue.

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