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Record W6996817096

A study of primary neural stem cell differentiation in vitro, focusing on the Three Amino acid Loop Extension (TALE) homeobox transcription factors

2012· dissertation· en· W6996817096 on OpenAlexaff

Bibliographic record

VenueMspace (University of Manitoba) · 2012
Typedissertation
Languageen
FieldMedicine
TopicObesity, Physical Activity, Diet
Canadian institutionsUniversity of Manitoba
Fundersnot available
KeywordsHomeoboxNeurosphereNeural stem cellEmbryonic stem cellStem cellCellular differentiationTranscription factorNeural cellHox geneNeuroepithelial cell
DOInot available

Abstract

fetched live from OpenAlex

Neural stem cells are capable of self-renewal and multilineage differentiation into the main cell types of the central nervous system, which are the neurons, astrocytes, and oligodendrocytes. These properties make neural stem cells an attractive cell source for potential cell-based therapies; however, thoroughly describing their gene expression programs is required to predict their safety and efficacy. In this study, we reveal that mouse embryonic day (E14) forebrain-derived primary neural stem cells have an astrocytic gene expression profile. We show that the NOTCH and BMP signalling pathways exhibit transcription profiles that are specific to the proliferation and differentiation of this neural stem cell source. Finally, we report the expression patterns of the Hox and TALE family homeobox genes in the E14 forebrain, E14 forebrain-derived primary neural stem cells, and their differentiating progeny. Protein expression analysis suggests that PREP2 is involved in neural stem cell proliferation and neuronogenesis, and that MEIS1 is involved in astrocyte differentiation. This is the first report on the expression patterns of TALE genes in forebrain-derived NSC differentiated in vitro, which provides a starting point to investigate the role of TALE genes in forebrain neurogenesis.

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 score0.002
Threshold uncertainty score0.004

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)0.0010.001

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 head0.031
GPT teacher head0.219
Teacher spread0.188 · 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
Published2012
Admission routes1
Has abstractyes

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