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Record W2070003798 · doi:10.1089/dna.2006.0570

Gene Set Enrichment Analyses Revealed Several Affected Pathways in Niemann-Pick Disease Type C Fibroblasts

2007· article· en· W2070003798 on OpenAlexaff
Aloys De Windt, Myriam Rai, Leena Kytömäki, Karin Thelen, Dieter Lütjohann, Lise Bernier, Jean Davignon, Juhani T. Soini, Massimo Pandolfo, Reijo Laaksonen

Bibliographic record

VenueDNA and Cell Biology · 2007
Typearticle
Languageen
FieldMedicine
TopicLysosomal Storage Disorders Research
Canadian institutionsMontreal Clinical Research Institute
Fundersnot available
KeywordsBiologyNPC1Downregulation and upregulationNeurodegenerationGene expressionCell biologyBiological pathwayCancer researchDrug discoveryGeneGene expression profilingDiseaseBioinformaticsEndosomeGeneticsInternal medicineIntracellularMedicine

Abstract

fetched live from OpenAlex

Niemann-pick type C (NPC) disease is characterized by endosomal and lysosomal accumulation of lipids, impaired tubulovesicular trafficking, and neurodegeneration leading to premature death. Current treatment options are limited to mainly symptomatic treatments. Thus, new and efficient drug targets are needed, and therefore we performed a Gene Set Enrichment Analysis (GSEA) on NPC and healthy fibroblasts to identify globally affected pathways in NPC that could serve as targets for later drug discovery programs. Cell lines were characterized by analyzing cellular concentrations of cholesterol, its precursors and metabolites, as well as cellular plant sterol levels. Gene expression analyses were performed with Sentrix Human-8 Expression BeadChips, analyzing 23,000 transcripts. Pathway analysis of the expression data was performed using the GSEA method. Twenty-seven upregulated and 33 downregulated pathways emerged as globally affected in the GSEA analysis. These pathways included, for example, mitochondrial pathway, caspase cascade, as well as prostaglandin and leukotriene metabolism. Based on the present results and earlier published data, anti-inflammatory and antiapoptotic treatment could be beneficial in NPC.

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: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.003
Threshold uncertainty score0.007

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.001
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)0.0020.000

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 head0.040
GPT teacher head0.336
Teacher spread0.295 · 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 designBench or experimental
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

Citations21
Published2007
Admission routes1
Has abstractyes

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Same venueDNA and Cell BiologySame topicLysosomal Storage Disorders ResearchFrench-language works237,207