IL21 and Huntington disease: Downregulated expression during HD treatment in viral-infected cells as compared to their untreated viral-infected counterparts includes CCR1, CCL26, and CCL15 at 6 m p.t, and CCL5, IL21, and IL17C at 6 h p.t. Upon AC treatment, compared to untreated viral-infected samples, CCL5, CCl26, IL21, and CCL15 levels were decreased at 6 m p.t. In contrast, CCR1, CCL26, and AIMP1 levels were elevated following AC treatment in viral-infected cells.