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miRNA Regulation of α‐2,6‐ Sialylation: Comprehensive Analysis of ST6GAL1 & 2

2022· article· en· W4225302989 on OpenAlexaff
Faezeh Jame Chenarboo, Lara K. Mahal

Bibliographic record

VenueThe FASEB Journal · 2022
Typearticle
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicGlycosylation and Glycoproteins Research
Canadian institutionsUniversity of Alberta
Fundersnot available
KeywordsmicroRNABiologyGlycoproteinUntranslated regionGlycosylationWestern blotGene expressionComputational biologyMessenger RNAGlycobiologyGeneMolecular biologyBiochemistryGlycan

Abstract

fetched live from OpenAlex

MicroRNAs (miRs) are endogenous non‐coding RNAs that modulate gene expression at either the transcriptional or translational level through interaction with untranslated regions of mRNA. Works from the Mahal Lab and others have shown miRs as major regulators of glycosylation. ST6GAL1 and ST6GAL2 decorate glycoproteins with α‐2,6‐sialic acid, an epitope with important roles in immunology and cancer biology. Herein, we analyze miRs that regulate ST6Gal1 and ST6Gal2 gene expression through interaction with 3′UTR regions of target mRNAs. Using miRFluR, a high throughput fluorescent sensor‐based method recently introduced by the Mahal Lab, we analyzed miR regulation of ST6Gal1 & 2 with miR mimics representing the currently known human miRome (~2700 miRs). Our analysis identified 89 miR regulators of ST6GAL1 and 102 regulators of ST6GAL2. Selected hits were validated by Western blot analysis and RT‐PCR. Finally, we took advantage of SNA staining assay using fluorescence microscopy to validate the sialylation outcome by ST6GAL1 after treatment with specific miR mimics. Our data reveals miRNA regulation of α‐2,6‐sialylation that is associated with pancreatic and other cancers.

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 score0.001
Threshold uncertainty score0.002

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
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 head0.027
GPT teacher head0.296
Teacher spread0.268 · 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

Citations0
Published2022
Admission routes1
Has abstractyes

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