CD8+ T cell-derived IL-13 increases macrophage IL-10 to resolve neuropathic pain.

Understanding the endogenous mechanisms regulating resolution of pain may identify novel targets for treatment of chronic pain. Resolution of chemotherapy-induced peripheral neuropathy (CIPN) after treatment completion depends on CD8+ T cells and on IL-10 produced by other cells. Using Rag2-/- mice lacking T and B cells and adoptive transfer of Il13-/- CD8+ T cells, we showed that CD8+ T cells producing IL-13 were required for resolution of CIPN.

HDAC6 inhibition effectively reverses chemotherapy-induced peripheral neuropathy.

Chemotherapy-induced peripheral neuropathy is one of the most common dose-limiting side effects of cancer treatment. Currently, there is no Food and Drug Administration-approved treatment available. Histone deacetylase 6 (HDAC6) is a microtubule-associated deacetylase whose function includes regulation of α-tubulin-dependent intracellular mitochondrial transport.