Evidence map›Paper›PMID 25798063›Full record

ArticleInternational journal of biological sciences2015

Tetratricopeptide repeat domain 9A negatively regulates estrogen receptor alpha activity.

Smeeta Shrestha, Yang Sun, Thomas Lufkin, Petra Kraus, Yuzuan Or, Yenni A Garcia, Naihsuan Guy, Paola Ramos, Marc B Cox, Fiona Tay and 1 more

Open access · goldAbstract read
In one paragraph

Article in International journal of biological sciences, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.7field-weighted citation impact, top 14% 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

18 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
  2. Central amygdalaNeurobiology of stress · 2026
    Article
  3. Article
  4. [A pan-cancer analysis of TTC9A expression level and its correlation with prognosis and immune microenvironment].Nan fang yi ke da xue xue bao = Journal of Southern Medical University · 2024
    Article
  5. FKBP5 inhibitors modulate alcohol drinking and trauma-related behaviors in a model of comorbid post-traumatic stress and alcohol use disorder.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2023
    Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
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  14. Article
  15. Article
  16. Article
  17. Replication of Epigenetic Postpartum Depression Biomarkers and Variation with Hormone Levels.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2016
    Article
  18. Gene-Stress-Epigenetic Regulation of FKBP5: Clinical and Translational Implications.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2016
    Review
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

11 authors at 2 institutions in 1 country.

Smeeta Shrestha1. School of Biological Sciences, Nanyang Technological University, Singapore;
Yang Sun1. School of Biological Sciences, Nanyang Technological University, Singapore;
Thomas Lufkin2. Genome Institute of Singapore, Singapore;
Petra Kraus2. Genome Institute of Singapore, Singapore;
Yuzuan Or1. School of Biological Sciences, Nanyang Technological University, Singapore;
Yenni A Garcia3. Department of Biological Sciences, University of Texas at El Paso, USA.
Naihsuan Guy3. Department of Biological Sciences, University of Texas at El Paso, USA.
Paola Ramos3. Department of Biological Sciences, University of Texas at El Paso, USA.
Marc B Cox3. Department of Biological Sciences, University of Texas at El Paso, USA.
Fiona Tay1. School of Biological Sciences, Nanyang Technological University, Singapore;
Valerie C L Lin1. School of Biological Sciences, Nanyang Technological University, Singapore;
Nanyang Technological University · SGGenome Institute of Singapore · SG

Funding

TCCG12MD007592 · NIMHD · UNIVERSITY OF TEXAS EL PASO · PI KIRKEN, ROBERT A. · 2012 to 2018
$19.4M
NIMHD NIH HHS G12 MD007592NIMHD NIH HHS G12MD007592
6 · The paper itself

Abstract

Tetratricopeptide repeat domain 9A (TTC9A) is a target gene of estrogen and progesterone. It is over-expressed in breast cancer. However, little is known about the physiological function of TTC9A. The objectives of this study were to establish a Ttc9a knockout mouse model and to study the consequence of Ttc9a gene inactivation. The Ttc9a targeting vector was generated by replacing the Ttc9a exon 1 with a neomycin cassette. The mice homozygous for Ttc9a exon 1 deletion appear to grow normally and are fertile. However, further characterization of the female mice revealed that Ttc9a deficiency is associated with greater body weight, bigger thymus and better mammary development in post-pubertal mice. Furthermore, Ttc9a deficient mammary gland was more responsive to estrogen treatment with greater mammary ductal lengthening, ductal branching and estrogen target gene induction. Since Ttc9a is induced by estrogen in estrogen target tissues, these results suggest that Ttc9a is a negative regulator of estrogen function through a negative feedback mechanism. This is supported by in vitro evidence that TTC9A over-expression attenuated ERα activity in MCF-7 cells. Although TTC9A does not bind to ERα or its chaperone protein Hsp90 directly, TTC9A strongly interacts with FKBP38 and FKBP51, both of which interact with ERα and Hsp90 and modulate ERα activity. It is plausible therefore that TTC9A negatively regulates ERα activity through interacting with co-chaperone proteins such as FKBP38 and FKBP51.

Indexed as

AnimalsEstrogen Receptor alphaFemaleHumansMammary Glands, HumanMCF-7 CellsMiceMice, KnockoutMicrofilament ProteinsNerve Tissue ProteinsProtein BindingSignal TransductionTacrolimus Binding Protein 5Tacrolimus Binding ProteinsEstrogen Receptor alphaFKBP8 protein, humanMicrofilament ProteinsNerve Tissue ProteinsTacrolimus Binding Protein 5Tacrolimus Binding Proteinstetratricopeptide repeat protein 9A, mouseTTC9 protein, humanCo-chaperone.ERαKnockout MouseMammary glandTTC9A

Identifiers

PMID25798063
PMCPMC4366642
OpenAlexW2163378454

What OpenQuestion holds

Textmetadata
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 OpenQuestion graph.