Evidence map›Paper›PMID 24794868›Full record

ArticleThe Journal of biological chemistry2014

α1-adrenergic receptor signaling in osteoblasts regulates clock genes and bone morphogenetic protein 4 expression through up-regulation of the transcriptional factor nuclear factor IL-3 (Nfil3)/E4 promoter-binding protein 4 (E4BP4).

Takao Hirai, Kenjiro Tanaka, Akifumi Togari

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.8field-weighted citation impact, top 16% 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

20 citing papers in PubMed, 34 citations in OpenAlex.

  1. Review
  2. Article
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  5. The function of GPCRs in different bone cells.International journal of biological sciences · 2025
    Review
  6. The specificities, influencing factors, and medical implications of bone circadian rhythms.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2024
    Review
  7. A wrinkle in time: circadian biology in pulmonary vascular health and disease.American journal of physiology. Lung cellular and molecular physiology · 2022
    Article
  8. Article
  9. Review
  10. Article
  11. Article
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  13. Review
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  16. Article
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  20. Obstructive sleep apnea and metabolic bone disease: insights into the relationship between bone and sleep.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2015
    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

3 authors at 1 institution in 1 country.

Takao HiraiFrom the Department of Pharmacology, School of Dentistry, Aichi-Gakuin University, Nagoya 464-8650, Japan.
Kenjiro TanakaFrom the Department of Pharmacology, School of Dentistry, Aichi-Gakuin University, Nagoya 464-8650, Japan.
Akifumi TogariFrom the Department of Pharmacology, School of Dentistry, Aichi-Gakuin University, Nagoya 464-8650, Japan togariaf@dpc.agu.ac.jp.
Aichi Gakuin University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Several studies have demonstrated that the α1-adrenergic receptor (AR) plays an important role in regulating cell growth and function in osteoblasts. However, the physiological role of α1-AR signaling in bone metabolism is largely unknown. In this study, the stimulation of phenylephrine (PHE), a nonspecific α1-AR agonist, increased the transcriptional factor Nfil3/E4BP4 and led to the rhythmic expression of bone morphogenetic protein 4 (Bmp4) in MC3T3-E1 osteoblastic cells. We also showed that Bmp4 mRNA expression peaked in bone near zeitgeber time 8 in a 24-h rhythm. Furthermore, the expression of Nfil3 and Bmp4 displayed a circadian pattern with opposing phases, which suggested that Nfil3 repressed the expression of the Bmp4 gene during a circadian cycle. On a molecular level, both loss-of-function and gain-of-function experiments demonstrated that Nfil3/E4BP4 negatively regulated Bmp4 expression in osteoblasts. Furthermore, the systemic administration of PHE increased the expression of Nfil3 mRNA in bone, whereas it decreased that of Bmp4 mRNA. The expression of Bmp4 mRNA was decreased significantly by exposure to PHE, and this was concomitant with the increase in Nfil3 binding to the D-box-containing Bmp4 promoter region in MC3T3-E1 cells, which indicates that the expression of Nfil3 by α1-AR signaling can bind directly to the Bmp4 promoter and inhibit Bmp4 expression in osteoblasts. Our results suggest that α1-AR signaling regulates clock genes and Bmp4 expression in osteoblasts. Moreover, α1-AR signaling negatively regulated Bmp4 expression by up-regulating the transcriptional factor Nfil3/E4BP4 in osteoblasts.

Indexed as

Up-RegulationAdrenergic alpha-1 Receptor AgonistsAnimalsBasic-Leucine Zipper Transcription FactorsBone Morphogenetic Protein 4Cell LineCircadian RhythmMaleMiceMice, Inbred C57BLOsteoblastsPeriod Circadian ProteinsPhenylephrineRNA, MessengerSignal TransductionAdrenergic alpha-1 Receptor AgonistsBasic-Leucine Zipper Transcription FactorsBmp4 protein, mouseBone Morphogenetic Protein 4Nfil3 protein, mousePeriod Circadian ProteinsPhenylephrineRNA, MessengerAdrenergic ReceptorBmp4Bone Morphogenetic Protein (BMP)Clock GeneNfil3OsteoblastTranscription Factorα1-Adrenergic Receptor

Identifiers

PMID24794868
PMCPMC4059158
OpenAlexW2080942463

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.