American Chemical Society
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Retargeted Clostridial Neurotoxins as Novel Agents for Treating Chronic Diseases

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journal contribution
posted on 2015-12-16, 20:31 authored by Felix L. Yeh, Yiming Zhu, William H. Tepp, Eric A. Johnson, Paul J. Bertics, Edwin R. Chapman
Botulinum neurotoxin (BoNT) A and B are used to treat neuropathic disorders; if retargeted, these agents could be used to treat medical conditions that involve secretion from nonneuronal cells. Here, we report novel strategies for successfully retargeting BoNTs, and also tetanus neurotoxin (TeNT), to primary human blood monocyte-derived macrophages where BoNT/B inhibited the release of tumor necrosis factor-α, a cytokine that plays a key role in inflammation. Furthermore, mice treated with retargeted BoNT/B exhibited a significant reduction in macrophage (MΦ) recruitment, indicating that these toxins can be used to treat chronic inflammation.