Evidence map›Paper›PMID 18056838›Full record

ArticleBlood2008

Regulation of adult erythropoiesis by prolyl hydroxylase domain proteins.

Kotaro Takeda, Hector L Aguila, Nehal S Parikh, Xiping Li, Katie Lamothe, Li-Juan Duan, Hiromi Takeda, Frank S Lee, Guo-Hua Fong

Open access · bronzeAbstract read
In one paragraph

Article in Blood, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 143 papers.

0numbers the graph read from it
0cells of the map it votes in
143citing papers in PubMed
9.0field-weighted citation impact, top 2% 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

143 citing papers in PubMed, 260 citations in OpenAlex.

  1. Trial
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  5. Ipriflavone FromMedComm · 2026
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  9. PHD1-3 oxygen sensors in vivo-lessons learned from gene deletions.Pflugers Archiv : European journal of physiology · 2024
    Review
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  15. Article
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83 more citing papers are in PubMed but not listed here.

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

9 authors at 4 institutions in 1 country.

Kotaro TakedaCenter for Vascular Biology, Department of Cell Biology, University of Connecticut Health Center, Farmington, CT 06030-3501, USA.
Hector L Aguila
Nehal S Parikh
Xiping Li
Katie Lamothe
Li-Juan Duan
Hiromi Takeda
Frank S Lee
Guo-Hua Fong
Center for Vascular Biology Research · USUConn Health · USUniversity of Pennsylvania · USConnecticut Children's Medical Center · US

Funding

Vascular Pathophysiology and History Core (VPHC)P01HL070694 · NHLBI · UNIVERSITY OF CONNECTICUT SCH OF MED/DNT · PI COWAN, ANN E. · 2002 to 2013
$17.5M
Molecular Mechanisms of the Hypoxic ResponseR01CA090261 · NCI · UNIVERSITY OF PENNSYLVANIA · PI LEE, FRANK S · 2002 to 2006
$1.3M
NCI NIH HHS R01 CA090261NHLBI NIH HHS 5P01-HL70694NHLBI NIH HHS P01 HL070694PHS HHS R01-C090261
6 · The paper itself

Abstract

Polycythemia is often associated with erythropoietin (EPO) overexpression and defective oxygen sensing. In normal cells, intracellular oxygen concentrations are directly sensed by prolyl hydroxylase domain (PHD)-containing proteins, which tag hypoxia-inducible factor (HIF) alpha subunits for polyubiquitination and proteasomal degradation by oxygen-dependent prolyl hydroxylation. Here we show that different PHD isoforms differentially regulate HIF-alpha stability in the adult liver and kidney and suppress Epo expression and erythropoiesis through distinct mechanisms. Although Phd1(-/-) or Phd3(-/-) mice had no apparent defects, double knockout of Phd1 and Phd3 led to moderate erythrocytosis. HIF-2alpha, which is known to activate Epo expression, accumulated in the liver. In adult mice deficient for PHD2, the prototypic Epo transcriptional activator HIF-1alpha accumulated in both the kidney and liver. Elevated HIF-1alpha levels were associated with dramatically increased concentrations of both Epo mRNA in the kidney and Epo protein in the serum, which led to severe erythrocytosis. In contrast, heterozygous mutation of Phd2 had no detectable effects on blood homeostasis. These findings suggest that PHD1/3 double deficiency leads to erythrocytosis partly by activating the hepatic HIF-2alpha/Epo pathway, whereas PHD2 deficiency leads to erythrocytosis by activating the renal Epo pathway.

Indexed as

ErythropoiesisAgingAnimalsDNA-Binding ProteinsHematopoietic Stem CellsHypoxia-Inducible Factor-Proline DioxygenasesImmediate-Early ProteinsMiceMice, KnockoutProcollagen-Proline DioxygenaseDNA-Binding ProteinsEgln1 protein, mouseHypoxia-Inducible Factor-Proline DioxygenasesImmediate-Early ProteinsPHD1 protein, mousePHD3 protein, mouseProcollagen-Proline Dioxygenase

Identifiers

PMID18056838
PMCPMC2265459
OpenAlexW2030334534

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.