Evidence map›Paper›PMID 24379119›Full record

ArticlePituitary2014

Downregulation of Insulin-like growth factor binding protein 6 is associated with ACTH-secreting pituitary adenoma growth.

Yakun Yang, Miaomiao Sheng, Fengming Huang, Dechao Bu, Xiaohai Liu, Yong Yao, Congxin Dai, Bowen Sun, Jindong Zhu, Yonghui Jiao and 6 more

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Article in Pituitary, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.0field-weighted citation impact, top 22% 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

6 citing papers in PubMed, 12 citations in OpenAlex.

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  5. Over-expression of LRIG1 suppresses biological function of pituitary adenoma via attenuation of PI3K/AKT and Ras/Raf/ERK pathways in vivo and in vitro.Journal of Huazhong University of Science and Technology. Medical sciences = Hua zhong ke ji da xue xue bao. Yi xue Ying De wen ban = Huazhong keji daxue xuebao. Yixue Yingdewen ban · 2016
    Article
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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

16 authors at 5 institutions in 2 countries.

Yakun YangDepartment of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, 100730, China.
Miaomiao Sheng
Fengming Huang
Dechao Bu
Xiaohai Liu
Yong Yao
Congxin Dai
Bowen Sun
Jindong Zhu
Yonghui Jiao
Zhenqing Wei
Huijuan Zhu
Lin Lu
Yi Zhao
Chengyu Jiang
Renzhi Wang
Peking Union Medical College Hospital · CNChinese Academy of Medical Sciences & Peking Union Medical College · CNChinese Academy of Sciences · CNTsinghua University · CNAcademy of Medical Sciences · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAdrenocorticotrophic hormone (ACTH)-dependent Cushing's syndrome, called Cushing disease, is caused by a corticotroph tumor of the pituitary gland. Insulin-like growth factor binding protein 6 (IGFBP6), which regulates insulin-like growth factor (IGF) activity and inhibits several IGF2-dependent cancer growths, plays a pivotal role in the tumorigenesis of malignancy, but its roles in ACTH-secreting pituitary adenomas remain unclear.

objectiveTo investigate IGFBP6 expression in ACTH-secreting pituitary adenomas, and its involvement in tumor growth.

methodsSporadic ACTH-secreting pituitary adenomas specimens (n = 41) and adjacent non-tumorous pituitary tissues (n = 9) were collected by transphenoidal surgery. IGFBP6 expression was assessed by quantitative reverse transcriptase polymerase chain reaction (qRT-PCR) and validated by Western blotting. Associations of IGFBP6 expression with maximum tumor diameter or Ki-67 labeling index were evaluated in ACTH-secreting pituitary adenomas.

resultsIGFBP6 mRNA and protein expression were both decreased in ACTH-secreting pituitary adenomas, compared to adjacent non-tumorous pituitary tissues (P < 0.01). IGFBP6 expression was correlated inversely with maximum tumor diameter (Rho = -0.53, P < 0.0001) and Ki-67 levels (Rho = -0.52, P < 0.05). Moreover, IGFBP6 downregulation activated PI3 K-AKT-mTOR pathway in ACTH-secreting pituitary adenomas.

conclusionsIGFBP6 attenuation in ACTH-secreting pituitary adenomas is associated with tumor growth, through activation of PI3K-AKT-mTOR pathway. The finding underlies IGFBP6 roles in Cushing disease and would potentially provide a novel target of medical therapies.

Indexed as

ACTH-Secreting Pituitary AdenomaAdultBiomarkers, TumorDown-RegulationFemaleHumansInsulin-Like Growth Factor Binding Protein 6In Vitro TechniquesKi-67 AntigenMaleMiddle AgedOncogene Protein v-aktPhosphatidylinositol 3-KinasesPituitary NeoplasmsSignal TransductionTOR Serine-Threonine KinasesBiomarkers, TumorInsulin-Like Growth Factor Binding Protein 6Ki-67 AntigenOncogene Protein v-aktPhosphatidylinositol 3-KinasesTOR Serine-Threonine Kinases

Identifiers

PMID24379119
OpenAlexW2084812332

What OpenQuestion holds

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Registered trials

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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.