Evidence map›Paper›PMID 27297658›Full record

ArticleMolecular and cellular endocrinology2016

Alternative splicing of DENND1A, a PCOS candidate gene, generates variant 2.

Meng Kian Tee, Mart Speek, Balázs Legeza, Bhavi Modi, Maria Eugenia Teves, Janette M McAllister, Jerome F Strauss, Walter L Miller

Open access · bronzeAbstract read
In one paragraph

Article in Molecular and cellular endocrinology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
5.7field-weighted citation impact, top 5% 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

23 citing papers in PubMed, 37 citations in OpenAlex.

  1. Review
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  13. Article
  14. Human DENND1A.V2 DrivesInternational journal of molecular sciences · 2020
    Article
  15. Recent advances in mammalian reproductive biology.Science China. Life sciences · 2020
    Review
  16. Article
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  18. Review
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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

8 authors at 3 institutions in 1 country.

Meng Kian TeeDepartment of Pediatrics and the Center for Reproductive Sciences, University of California, San Francisco, United States.
Mart SpeekDepartment of Pediatrics and the Center for Reproductive Sciences, University of California, San Francisco, United States.
Balázs LegezaDepartment of Pediatrics and the Center for Reproductive Sciences, University of California, San Francisco, United States.
Bhavi ModiDepartment of Obstetrics and Gynecology, Virginia Commonwealth University, Richmond, VA 23298, United States; Department of Human and Molecular Genetics, Virginia Commonwealth University, Richmond, VA 23298, United States.
Maria Eugenia TevesDepartment of Obstetrics and Gynecology, Virginia Commonwealth University, Richmond, VA 23298, United States; Department of Human and Molecular Genetics, Virginia Commonwealth University, Richmond, VA 23298, United States.
Janette M McAllisterDepartment of Pathology, Pennsylvania State College of Medicine, Hershey, PA 17033, United States; Department of Obstetrics and Gynecology, Pennsylvania State College of Medicine, Hershey, PA 17033, United States.
Jerome F StraussDepartment of Obstetrics and Gynecology, Virginia Commonwealth University, Richmond, VA 23298, United States; Department of Human and Molecular Genetics, Virginia Commonwealth University, Richmond, VA 23298, United States.
Walter L MillerDepartment of Pediatrics and the Center for Reproductive Sciences, University of California, San Francisco, United States. Electronic address: wlmlab@ucsf.edu.
University of California, San Francisco · USVirginia Commonwealth University · USPenn State Milton S. Hershey Medical Center · US

Funding

Translational Research in Polycystic Ovary SyndromeU54HD034449 · NICHD · VIRGINIA COMMONWEALTH UNIVERSITY · PI NESTLER, JOHN E · 1997 to 2012
$15.0M
Functional Analysis of PCOS Candidate GenesR01HD083323 · NICHD · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI MCALLISTER, JAN M, STRAUSS, JEROME F · 2016 to 2020
$2.7M
17 ALPHA HYDROXYLASE EXPRESSION IN HUMAN OVARIAN CELLSR01HD033852 · NICHD · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI MCALLISTER, JAN M · 1996 to 2010
$2.4M
Mechanism of Metformin Action in Normal and PCOS Theca CellsR01HD058300 · NICHD · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI MCALLISTER, JAN M · 2008 to 2012
$1.7M
NICHD NIH HHS R01 HD033852NICHD NIH HHS R01 HD058300NICHD NIH HHS R01 HD083323NICHD NIH HHS U54 HD034449
6 · The paper itself

Abstract

Polycystic ovary syndrome (PCOS) is a common endocrinopathy characterized by hyperandrogenism and metabolic disorders. The excess androgens may be of both ovarian and adrenal origin. PCOS has a strong genetic component, and genome-wide association studies have identified several candidate genes, notably DENND1A, which encodes connecdenn 1, involved in trafficking of endosomes. DENND1A encodes two principal variants, V1 (1009 amino acids) and V2 (559 amino acids). The androgen-producing ovarian theca cells of PCOS women over-express V2. Knockdown of V2 in these cells reduces androgen production, and overexpression of V2 in normal theca cells confers upon them a PCOS phenotype of increased androgen synthesis. We report that human adrenal NCI-H295A cells express V1 and V2 mRNA and that the V2 isoform is produced by exonization of sequences in intron 20, which generates a unique exon 20A, encoding the C-terminus of V2. As in human theca cells from normal women, forced expression of V2 in NCI-H295A cells resulted in increased abundance of CYP17A1 and CYP11A1 mRNAs. We also found genetic variation in the intronic region 330 bp upstream from exon 20A, which could have the potential to drive the selective expression of V2. There was no clear association with these variants with PCOS when we analyzed genomc DNA from normal women and women with PCOS. Using minigene expression vectors in NCI-H295A cells, this variable region did not consistently favor splicing of the V2 transcript. These findings suggest increased V2 expression in PCOS theca cells is not the result of genomic sequence variation in intron 20.

Indexed as

Alternative SplicingCell LineCholesterol Side-Chain Cleavage EnzymeDeath Domain Receptor Signaling Adaptor ProteinsFemaleGenetic VariationGenome-Wide Association StudyGuanine Nucleotide Exchange FactorsHumansPolycystic Ovary SyndromeSequence Analysis, DNASteroid 17-alpha-HydroxylaseTheca CellsUp-RegulationCholesterol Side-Chain Cleavage EnzymeCYP17A1 protein, humanDeath Domain Receptor Signaling Adaptor ProteinsDENND1A protein, humanGuanine Nucleotide Exchange FactorsSteroid 17-alpha-HydroxylaseAdrenalAlternate splicingAndrogensNCI-H295A cellsOvaryRNA splicing

Identifiers

PMID27297658
PMCPMC4983473
OpenAlexW2418363996

What OpenQuestion holds

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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 OpenQuestion graph.