IL6 and Huntington disease: There are clinical trials for safety assessment (NCT02728115, 2016), for analyzing dose-response (NCT03252535, 2017) and as an extension (NCT04219241, 2020), based on the intravenous administration of hMSC (CellAvitaTM) to HD patients and whose approach include the measurement of the inflammatory markers such as IL-6, TNFα, IL-4 and IL-10 as well as the immune response by the measurement of lymphocytes CD4+ and CD8+ proliferation.