Evidence map›Paper›PMID 9819427›Full record

ArticleMolecular and cellular biology1998

Thyroid transcription factor 1 is calcium modulated and coordinately regulates genes involved in calcium homeostasis in C cells.

K Suzuki, S Lavaroni, A Mori, F Okajima, S Kimura, R Katoh, A Kawaoi, L D Kohn

Abstract read
In one paragraph

Article in Molecular and cellular biology, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.4field-weighted citation impact, top 10% 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

16 citing papers in PubMed, 77 citations in OpenAlex.

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  13. Calcium sensing by endocrine cells.Endocrine pathology · 2004
    Review
  14. Article
  15. Article
  16. Activation of target-tissue immune-recognition molecules by double-stranded polynucleotides.Proceedings of the National Academy of Sciences of the United States of America · 1999
    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

8 authors at 4 institutions in 2 countries.

K SuzukiCell Regulation Section, Metabolic Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA.
S Lavaroni
A Mori
F Okajima
S Kimura
R Katoh
A Kawaoi
L D Kohn
National Institute of Diabetes and Digestive and Kidney Diseases · USUniversity of Yamanashi · JPGunma University · JPNational Institutes of Health · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Thyroid transcription factor 1 (TTF-1) was identified for its critical role in thyroid-specific gene expression; its level in the thyroid is regulated by thyrotropin-increased cyclic AMP levels. TTF-1 was subsequently found in lung tissue, where it regulates surfactant expression, and in certain neural tissues, where its function is unknown. Ligands or signals regulating TTF-1 levels in lung or neural tissue are unknown. We recently identified TTF-1 in rat parafollicular C cells and parathyroid cells. In this report, we show that TTF-1 is present in the parafollicular C cells of multiple species and that it interacts with specific elements on the 5'-flanking regions of the extracellular Ca2+-sensing receptor (CaSR), calmodulin, and calcitonin genes in C cells. When intracellular Ca2+ levels are increased or decreased in C cells, by the calcium ionophore A23187, by physiologic concentrations of the P2 purinergic receptor ligand ATP, or by changes in extracellular Ca2+ levels, the promoter activity, RNA levels, and binding of TTF-1 to these genes are, respectively, decreased or increased. The changes in TTF-1 inversely alter CaSR gene and calcitonin gene expression. We show, therefore, that TTF-1 is a Ca2+-modulated transcription factor that coordinately regulates the activity of genes critical for Ca2+ homeostasis by parafollicular C cells. We hypothesize that TTF-1 similarly coordinates Ca2+-dependent gene expression in all cells in which TTF-1 and the CaSR are expressed, i. e., parathyroid cells, neural cells in the anterior pituitary or hippocampus, and keratinocytes.

Indexed as

AnimalsBase SequenceBinding SitesCalciumCells, CulturedDNA-Binding ProteinsGene Expression RegulationHomeostasisImmunohistochemistryIn Situ HybridizationMolecular Sequence DataNuclear ProteinsOligonucleotides, AntisensePromoter Regions, GeneticRatsReceptors, Calcium-SensingCalciumDNA-Binding Proteinsextracellular calcium cation-sensing receptor, ratNkx2-1 protein, ratNuclear ProteinsOligonucleotides, AntisenseReceptors, Calcium-SensingReceptors, Cell SurfaceRNA, MessengerThyroid Nuclear Factor 1Transcription Factors

Identifiers

PMID9819427
PMCPMC109322
OpenAlexW2160302391

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.