Evidence map›Paper›PMID 26795955›Full record

ArticleScientific reports2016

Tsc1 deficiency impairs mammary development in mice by suppression of AKT, nuclear ERα, and cell-cycle-driving proteins.

Zhenqi Qin, Hang Zheng, Ling Zhou, Yanhua Ou, Bin Huang, Bo Yan, Zhenshu Qin, Cuilan Yang, Yongchun Su, Xiaochun Bai and 2 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.3field-weighted citation impact, top 32% 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

7 citing papers in PubMed, 10 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Article
  6. Role of TSC1 in physiology and diseases.Molecular and cellular biochemistry · 2021
    Review
  7. Article
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 5 institutions in 1 country.

Zhenqi QinDepartment of Histology and Embryology, Southern Medical University, Guangzhou, China.
Hang ZhengDepartment of Oncology, Nanfang Hospital, Postal code 510515, Guangzhou, China.
Ling ZhouDepartment of Oncology, Nanfang Hospital, Postal code 510515, Guangzhou, China.
Yanhua OuDepartment of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.
Bin HuangAcademy of Orthopedics of Guangdong Province, Department of Orthopedics, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China.
Bo YanAcademy of Orthopedics of Guangdong Province, Department of Orthopedics, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China.
Zhenshu QinDepartment of Orthopedics, The First People Hospital of Chen Zhou , University of South China, Hunan Province, China.
Cuilan YangDepartment of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.
Yongchun SuDepartment of Bioinformatics, School of Basic Medical Science, Southern Medical University, Guangzhou, China.
Xiaochun BaiDepartment of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.
Jiasong GuoDepartment of Histology and Embryology, Southern Medical University, Guangzhou, China.
Jun LinDepartment of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.
Southern Medical University · CNNanfang Hospital · CNThird Affiliated Hospital of Southern Medical University · CNKey Laboratory of Guangdong Province · CNUniversity of South China · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Loss of Tsc1/Tsc2 results in excess cell growth that eventually forms hamartoma in multiple organs. Our study using a mouse model with Tsc1 conditionally knockout in mammary epithelium showed that Tsc1 deficiency impaired mammary development. Phosphorylated S6 was up-regulated in Tsc1(-/-) mammary epithelium, which could be reversed by rapamycin, suggesting that mTORC1 was hyperactivated in Tsc1(-/-) mammary epithelium. The mTORC1 inhibitor rapamycin restored the development of Tsc1(-/-) mammary glands whereas suppressed the development of Tsc1(wt/wt) mammary glands, indicating that a modest activation of mTORC1 is critical for mammary development. Phosphorylated PDK1 and AKT, nuclear ERα, nuclear IRS-1, SGK3, and cell cycle regulators such as Cyclin D1, Cyclin E, CDK2, CDK4 and their target pRB were all apparently down-regulated in Tsc1(-/-) mammary glands, which could be reversed by rapamycin, suggesting that suppression of AKT by hyperactivation of mTORC1, inhibition on nuclear ERα signaling, and down-regulation of cell-cycle-driving proteins play important roles in the retarded mammary development induced by Tsc1 deletion. This study demonstrated for the first time the in vivo role of Tsc1 in pubertal mammary development of mice, and revealed that loss of Tsc1 does not necessarily lead to tissue hyperplasia.

Indexed as

AnimalsCell Cycle ProteinsCell NucleusDown-RegulationEpitheliumEstrogen Receptor alphaInsulin Receptor Substrate ProteinsMammary Glands, AnimalMice, KnockoutProto-Oncogene Proteins c-aktSirolimusTuberous Sclerosis Complex 1 ProteinTumor Suppressor ProteinsCell Cycle ProteinsEstrogen Receptor alphaInsulin Receptor Substrate ProteinsIrs1 protein, mouseProto-Oncogene Proteins c-aktSirolimusTsc1 protein, mouseTuberous Sclerosis Complex 1 ProteinTumor Suppressor Proteins

Identifiers

PMID26795955
PMCPMC4726182
OpenAlexW2417556946

What OpenQuestion 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 OpenQuestion graph.