Evidence map›Paper›PMID 30290792›Full record

ArticleBMC genomics2018

Transcriptional profiling of embryos lacking the lipoprotein receptor SR-B1 reveals a regulatory circuit governing a neurodevelopmental or metabolic decision during neural tube closure.

Nicolás Santander, Carlos Lizama, Leandro Murgas, Sebastián Contreras, Alberto J M Martin, Paz Molina, Alonso Quiroz, Katherine Rivera, Francisca Salas-Pérez, Alejandro Godoy and 2 more

Open access · goldAbstract read
In one paragraph

Article in BMC genomics, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
0.9field-weighted citation impact, top 23% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 15 citations in OpenAlex.

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  2. Transcription-based comparison ofMicrobiology spectrum · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors at 4 institutions in 2 countries.

Nicolás SantanderDepartment of Nutrition, Diabetes, and Metabolism, School of Medicine, Pontificia Universidad Católica de Chile, Marcoleta 367, 83300024, Santiago, CP, Chile.
Carlos LizamaCardiovascular Research Institute, University of California, San Francisco, CA, USA.
Leandro MurgasNetwork Biology Laboratory, Center for Genomics and Bioinformatics, Faculty of Sciences, Universidad Mayor, Santiago, Chile.
Sebastián ContrerasNetwork Biology Laboratory, Center for Genomics and Bioinformatics, Faculty of Sciences, Universidad Mayor, Santiago, Chile.
Alberto J M MartinNetwork Biology Laboratory, Center for Genomics and Bioinformatics, Faculty of Sciences, Universidad Mayor, Santiago, Chile.
Paz MolinaDepartment of Nutrition, Diabetes, and Metabolism, School of Medicine, Pontificia Universidad Católica de Chile, Marcoleta 367, 83300024, Santiago, CP, Chile.
Alonso QuirozDepartment of Nutrition, Diabetes, and Metabolism, School of Medicine, Pontificia Universidad Católica de Chile, Marcoleta 367, 83300024, Santiago, CP, Chile.
Katherine RiveraDepartment of Nutrition, Diabetes, and Metabolism, School of Medicine, Pontificia Universidad Católica de Chile, Marcoleta 367, 83300024, Santiago, CP, Chile.
Francisca Salas-PérezDepartment of Nutrition, Diabetes, and Metabolism, School of Medicine, Pontificia Universidad Católica de Chile, Marcoleta 367, 83300024, Santiago, CP, Chile.
Alejandro GodoyFaculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile.
Attilio RigottiDepartment of Nutrition, Diabetes, and Metabolism, School of Medicine, Pontificia Universidad Católica de Chile, Marcoleta 367, 83300024, Santiago, CP, Chile.
Dolores BussoDepartment of Nutrition, Diabetes, and Metabolism, School of Medicine, Pontificia Universidad Católica de Chile, Marcoleta 367, 83300024, Santiago, CP, Chile. dbusso@med.puc.cl.ORCID http://orcid.org/0000-0003-2113-1926
Pontificia Universidad Católica de Chile · CLUniversidad Mayor · CLRoswell Park Comprehensive Cancer Center · USUniversity of California, San Francisco · US

Funding

Acquisition of Covaris E220 and Sciclone G3 systems for high throughput sequencinS10OD010786 · OD · UNIVERSITY OF CALIFORNIA AT DAVIS · PI COMAI, LUCA · 2012 to 2012
$311k
CONICYT PhD Fellowship 21130444CONICYT PhD Fellowship 21170306Fondo Nacional de Desarrollo Científico y Tecnológico 1140342Fondo Nacional de Desarrollo Científico y Tecnológico 1141236Fondo Nacional de Desarrollo Científico y Tecnológico 1150399Fondo Nacional de Desarrollo Científico y Tecnológico 1180347Fondo Nacional de Desarrollo Científico y Tecnológico 1181089NIH HHS S10 OD010786
6 · The paper itself

Abstract

backgroundThe high-density lipoprotein receptor SR-B1 mediates cellular uptake of several lipid species, including cholesterol and vitamin E. During early mouse development, SR-B1 is located in the maternal-fetal interface, where it facilitates vitamin E transport towards the embryo. Consequently, mouse embryos lacking SR-B1 are vitamin E-deficient, and around half of them fail to close the neural tube and show cephalic neural tube defects (NTD). Here, we used transcriptomic profiling to identify the molecular determinants of this phenotypic difference between SR-B1 deficient embryos with normal morphology or with NTD.

resultsWe used RNA-Seq to compare the transcriptomic profile of three groups of embryos retrieved from SR-B1 heterozygous intercrosses: wild-type E9.5 embryos (WT), embryos lacking SR-B1 that are morphologically normal, without NTD (KO-N) and SR-B1 deficient embryos with this defect (KO-NTD). We identified over 1000 differentially expressed genes: down-regulated genes in KO-NTD embryos were enriched for functions associated to neural development, while up-regulated genes in KO-NTD embryos were enriched for functions related to lipid metabolism. Feeding pregnant dams a vitamin E-enriched diet, which prevents NTD in SR-B1 KO embryos, resulted in mRNA levels for those differentially expressed genes that were more similar to KO-N than to KO-NTD embryos. We used gene regulatory network analysis to identify putative transcriptional regulators driving the different embryonic expression profiles, and identified a regulatory circuit controlled by the androgen receptor that may contribute to this dichotomous expression profile in SR-B1 embryos. Supporting this possibility, the expression level of the androgen receptor correlated strongly with the expression of several genes involved in neural development and lipid metabolism.

conclusionsOur analysis shows that normal and defective embryos lacking SR-B1 have divergent expression profiles, explained by a defined set of transcription factors that may explain their divergent phenotype. We propose that distinct expression profiles may be relevant during early development to support embryonic nutrition and neural tube closure.

Indexed as

Gene Expression ProfilingGene Knockout TechniquesGene Regulatory NetworksTranscription, GeneticAnimalsCD36 AntigensHumansMiceNeural TubeNeural Tube DefectsPhenotypeWeaningCD36 AntigensAndrogen receptorGene expressionNeural tube defectsRNA-SeqSR-B1

Identifiers

PMID30290792
PMCPMC6173885
OpenAlexW2895278890

What Socratic holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.