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Updated: Dec 20, 2025
Fractionation for Resolution of Soluble and Insoluble Huntingtin Species
Published on: February 27, 2018
Interleukin-6 deficiency exacerbates Huntington's disease model phenotypes
Mary H Wertz1,2, S Sebastian Pineda2,3,4, Hyeseung Lee1,2
1Picower Institute for Learning and Memory, Cambridge, MA, 02139, USA.
Interleukin-6 (IL-6) deficiency worsened Huntington's disease (HD) symptoms in mice, contrary to expectations. This suggests IL-6 plays a role in regulating genes vital for synaptic function in HD.
Area of Science:
- Neuroscience
- Immunology
- Genetics
Background:
- Huntington's disease (HD) is a neurodegenerative disorder linked to CAG trinucleotide repeats in the huntingtin gene.
- Immune activation and inflammation, marked by elevated interleukin-6 (IL-6), are observed in HD and are implicated in its pathogenesis.
Purpose of the Study:
- To investigate the protective role of IL-6 in Huntington's disease.
- To test if IL-6 deficiency mitigates the effects of mutant huntingtin.
Main Methods:
- Generated R6/2 HD model mice lacking IL-6.
- Performed single nuclear RNA sequencing (snRNA-seq) on striatal cell types.
Main Results:
- IL-6 deficiency exacerbated behavioral deficits in HD model mice.
- snRNA-seq revealed dysregulation of synaptic function genes and the BDNF receptor Ntrk2 in IL-6 deficient HD mice.
- IL-6 deficiency led to altered gene expression in striatal neurons.
Conclusions:
- IL-6 deficiency worsens HD pathogenesis by disrupting genes critical for synaptic function.
- Modulating IL-6 levels to maintain proper synaptic gene regulation may offer a therapeutic strategy for HD.
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