Cited by 130Amyotrophic Lateral Sclerosis ResearchMultiple Sclerosis Research StudiesLysosomal Storage Disorders Research

Cerebrospinal fluid macrophage biomarkers in amyotrophic lateral sclerosis

Thompson, Alexander G., Gray, Elizabeth, Thézénas, Marie‐Laëtitia, Charles, Philip D., Evetts, Samuel, Hu, Michele T., Talbot, Kevin, Fischer, Roman +2 more·2018·Annals of Neurology

Abstract

Objective: The neurodegenerative disease, amyotrophic lateral sclerosis (ALS), is a heterogeneous clinical syndrome involving multiple molecular pathways. The development of biomarkers for use in therapeutic trials is a priority. We sought to use a high‐throughput proteomic method to identify novel biomarkers in individual cerebrospinal fluid (CSF) samples. Methods: Liquid chromatography/tandem mass spectrometry with label‐free quantification was used to identify CSF proteins using samples from a well‐characterized longitudinal cohort comprising patients with ALS (n = 43), the upper motor neuron variant, primary lateral sclerosis (PLS; n = 6), and cross‐sectional healthy (n = 20) and disease controls (Parkinsons' disease, n = 20; ALS mimic disorders, n = 12). Results: Three macrophage‐derived chitinases showed increased abundance in ALS: chitotriosidase (CHIT1), chitinase‐3‐like protein 1 (CHI3L1), and chitinase‐3‐like protein 2 (CHI3L2). Elevated CHI3L1 was common to ALS and PLS, whereas CHIT1 and CHI3L2 levels differed. Chitinase levels correlated with disease progression rate (CHIT1, r = 0.56, p < 0.001; CHI3L1, r = 0.31; p = 0.028; CHI3L2, r = 0.29, p = 0.044). CHIT1, CHI3L1, and CHI3L2 levels correlated with phosphorylated neurofilament heavy chain (pNFH; r = 0.62, p < 0.001; r = 0.49, p < 0.001; r = 0.41, p < 0.001). CHI3L1 levels, but not CHIT1 or CHI3L2, increased over time in those with low initial levels (gradient = 0.005 log abundance units/month, p = 0.001). High CHIT1 was associated with shortened survival (hazard ratio [HR] 2.84; p = 0.009). Inclusion of pNFH in survival models left only an association of pNFH and survival (HR 1.26; p = 0.019). Interpretation: Neuroinflammatory mechanisms have been consistently implicated through various experimental paradigms. These results support a key role for macrophage activity in ALS pathogenesis, offering novel target engagement and pharmacodynamic biomarkers for neuroinflammation‐focused ALS therapy. Ann Neurol 2018;83:258–268

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Crossref · 10.1002/ana.25143

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Authors
Thompson, A. G., Gray, E., Thézénas, M., Charles, P. D., Evetts, S., Hu, M. T., Talbot, K., Fischer, R., Kessler, B. M., & Turner, M. R.
Affiliations
  • University of Oxford (GB)
  • Nuffield Department of Clinical Neurosciences University of Oxford United Kingdom
Corresponding author
  • Kessler, Benedikt M.
  • Turner, Martin R.
Venue
Annals of Neurology
Publisher
Wiley
Published
2018-02
Volume
83
Issue
2
Pages
258-268
ISSN
  • 0364-5134 (ISSN-L)
  • 1531-8249
OpenAlex
W2794716002
Cited by
130
References
27
Citations by year
2026: 3 · 2025: 13 · 2024: 7 · 2023: 13 · 2022: 20 · 2021: 22 · 2020: 20 · 2019: 16 · 2018: 16
FWCI
12.47
Type
journal article
Language
en
Open access
closed
Locations
  • Annals of Neurology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Medical Research Council (MR/K01014X/1)
Topics
  • Health Sciences › Medicine › Neurology › Amyotrophic Lateral Sclerosis Research
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Multiple Sclerosis Research Studies
  • Health Sciences › Medicine › Physiology › Lysosomal Storage Disorders Research
Keywords
amyotrophic lateral sclerosis, cerebrospinal fluid biomarkers, chitotriosidase, YKL-40, primary lateral sclerosis, disease progression, survival prediction, neuroinflammation, proteomics
MeSH terms
Amyotrophic Lateral Sclerosis, Chitinases, Cross-Sectional Studies, Female, Humans, Macrophages, Male, Middle Aged, Cohort Studies, Biomarkers, Disease Progression, Proteomics

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