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Record W4220971922 · doi:10.1101/2022.03.04.22271927

Persistence of targetable lesions, predicted therapy sensitivity and proteomes through disease evolution in pediatric acute lymphoblastic leukemia

2022· preprint· en· W4220971922 on OpenAlexafffund
Amanda Lorentzian, Jenna Rever, Enes K. Ergin, Meiyun Guo, Neha M. Akella, Nina Rolf, Chinten James Lim, Gregor S. D. Reid, Christopher A. Maxwell, Philipp F. Lange

Bibliographic record

VenuemedRxiv · 2022
Typepreprint
Languageen
FieldMedicine
TopicPARP inhibition in cancer therapy
Canadian institutionsBC Children's HospitalUniversity of British Columbia
FundersUniversity of British ColumbiaCanada Research ChairsMichael Smith Health Research BCBC Children's HospitalChildren's Hospital Foundation
KeywordsProteomeDiseasePersistence (discontinuity)MedicineOncologyPrecision medicineGenomeLymphoblastic LeukemiaBioinformaticsComputational biologyBiologyLeukemiaInternal medicineGeneticsGenePathology

Abstract

fetched live from OpenAlex

ABSTRACT Childhood acute lymphoblastic leukemia (ALL) genomes show that relapses often arise from subclonal outgrowths. However, the impact of clonal evolution on the actionable proteome and response to targeted therapy is not known. Here, we present a comprehensive retrospective analysis of paired ALL diagnosis and relapsed specimen. Targeted next generation sequencing and proteome analysis indicated persistence of actionable genome variants and stable proteomes through disease progression. Paired viably-frozen biopsies showed high correlation of drug response to variant-targeted therapies but in vitro selectivity was low. Proteome analysis prioritized PARP1 as a new pan-ALL target candidate needed for survival following cellular stress; diagnostic and relapsed ALL samples demonstrated robust sensitivity to treatment with two PARP1/2 inhibitors. Together, these findings support initiating prospective precision oncology approaches at ALL diagnosis and emphasize the need to incorporate proteome analysis to prospectively determine tumor sensitivities, which are likely to be retained at disease relapse. STATEMENT OF SIGNIFICANCE We discover that disease progression and evolution in pediatric acute lymphoblastic leukemia is defined by the persistence of targetable genomic variants and stable proteomes, which reveal pan-ALL target candidates. Thus, personalized treatment options in childhood ALL may be improved with the incorporation of prospective proteogenomic approaches initiated at disease diagnosis.

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)0.001
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 score0.002

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0010.000
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 head0.030
GPT teacher head0.283
Teacher spread0.254 · 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

Citations1
Published2022
Admission routes2
Has abstractyes

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