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Proteogenomic immune signatures delineate the landscape of pediatric acquired demyelinating syndromes

2022· article· en· W4313431794 on OpenAlexaff
Diego A. Espinoza, Ina Mexhitaj, Jacqueline Smiler, Fernanda Mafra, Renata Pellegrino da Silva, Giulia Fadda, Eric Yeh, Ruth Ann Marrie, Douglas L. Arnold, Rui Li, Brenda Banwell, Amit Bar‐Or

Bibliographic record

VenueThe Journal of Immunology · 2022
Typearticle
Languageen
FieldMedicine
TopicMultiple Sclerosis Research Studies
Canadian institutionsMcGill UniversityUniversity of ManitobaUniversity of TorontoSickKids FoundationMontreal Neurological Institute and HospitalHospital for Sick Children
Fundersnot available
KeywordsMedicineImmune systemImmunologyMultiple sclerosisMyelin oligodendrocyte glycoproteinExperimental autoimmune encephalomyelitis

Abstract

fetched live from OpenAlex

Abstract Approximately 20–30% of children presenting with acquired inflammatory demyelinating syndromes (ADS) have multiple sclerosis (MS). Another 30% harbor serum antibodies against myelin oligodendrocyte glycoprotein and are referred to as having MOG-associated disease (MOGAD). While MS and MOGAD can have similar features, differences in response to immune therapies point to distinct underlying immune mechanisms. To assess potentially distinct immune mechanisms underlying MS and MOGAD, we applied proteogenomics to high quality cryopreserved peripheral blood mononuclear cells collected from patients with ADS prior to institution of immune therapy, as well as from healthy controls. CITE-Seq profiling was applied to a total of 92,716 single cells with equal contribution from 24 children (6 healthy donors; 6 with ADS but neither MS or MOGAD; 6 with MOGAD; and 6 with MS, ascertained with long-term follow-up). Analysis revealed a pan-ADS enrichment of atypical (CD11c+) B cells compared to healthy controls. Children with MS were distinguished from children with MOGAD by MS-specific enrichments of checkpoint-molecule (TIGIT and CD137)-expressing CD8 memory T cells, STAT4+ Th1 CD4 memory T cells and CD56dim/CD16+ NK cells. Overall, our study identifies distinct features of circulating cellular immune profiles that may serve to distinguish children with MS and MOGAD, and provides novel insights into early immune mechanisms that may be involved in each of these conditions.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.001
Threshold uncertainty score0.003

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.034
GPT teacher head0.296
Teacher spread0.262 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2022
Admission routes1
Has abstractyes

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