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Record W2049009935 · doi:10.1089/jir.2008.0144

A Biosensor-Based Characterization of the Affinity Maturation of the Immune Response Against Interferon-β and Correlations with Neutralizing Antibodies in Treated Multiple Sclerosis Patients

2008· article· en· W2049009935 on OpenAlexafffund
Ebrima Gibbs, Joël Oger

Bibliographic record

VenueJournal of Interferon & Cytokine Research · 2008
Typearticle
Languageen
FieldMedicine
TopicMonoclonal and Polyclonal Antibodies Research
Canadian institutionsUniversity of British Columbia
FundersUniversity of British ColumbiaMultiple Sclerosis SocietyUniversity of Regina
KeywordsAntibodySurface plasmon resonanceTiterDissociation rateImmune systemChemistryImmunologyAffinity maturationAntibody titerMultiple sclerosisDissociation (chemistry)Internal medicineMedicine

Abstract

fetched live from OpenAlex

The study of antibodies against Interferon-beta (IFN-beta) in treated multiple sclerosis (MS) patients has focused primarily on detection and quantification, with no single method of detection providing a comprehensive characterization. We assessed serial samples of 18 MS patients, treated with IFN-beta for between 66 and 198 months, to characterize the affinity maturation of these antibodies using a biosensor-based approach (Biacore). Biacore utilizes the principles of surface plasmon resonance (SPR) with data from the dissociation phase of the antigen-antibody reaction being inversely proportional to relative antibody affinity. In patients with neutralizing antibodies (NAbs+), mean antibody dissociation rates decreased from 0.00118 +/- 0.00030 s(-1) at month 6 to 0.00021 +/- 0.00008 s(-1) at month 36, followed by a slight increase to 0.00027 +/- 0.00003 s(-1) at month 60. In NAb- patients, mean antibody dissociation rates decreased only very slightly from 0.00130 +/- 0.00025 s(-1) to 0.00105 +/- 0.00020 s(-1) at month 18, followed by a gradual increase to 0.00243 +/- 0.00099 s(-1) at month 60. Our study shows little improvement in antibody affinity in NAb- patients, in contrast to a marked increase in antibody affinity over time in NAb+ patients with a significant correlation between NAb titers and relative antibody dissociation rates (Spearman's correlation, R(2) = -0.374, p < 0.001). The evaluation of relative antibody affinities will contribute to a thorough understanding of the anti-IFN-beta antibody response.

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 distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.001
Version: codex-gemma-dda1882f352aValidation 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 score0.308
Threshold uncertainty score0.334

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0000.001
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0000.000

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 head0.080
GPT teacher head0.305
Teacher spread0.224 · 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 teacher head, 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

Citations15
Published2008
Admission routes2
Has abstractyes

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