Evidence map›Paper›PMID 17172443›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2006

Modulation of Leydig cell function by cyclic nucleotide phosphodiesterase 8A.

Valeria Vasta, Masami Shimizu-Albergine, Joseph A Beavo

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
1.0field-weighted citation impact, top 27% 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

46 citing papers in PubMed, 91 citations in OpenAlex.

  1. Review
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  12. Phosphodiesterase 4B inhibition: a potential novel strategy for treating pulmonary fibrosis.European respiratory review : an official journal of the European Respiratory Society · 2023
    Review
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  19. PDE8 Is Expressed in Human Airway Smooth Muscle and Selectively Regulates cAMP Signaling by βAmerican journal of respiratory cell and molecular biology · 2018
    Article
  20. 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.

Valeria VastaDepartment of Pharmacology, University of Washington, 1959 NE Pacific Street, Seattle, WA 98195-7280, USA.
Masami Shimizu-Albergine
Joseph A Beavo
University of Washington · US

Funding

Spermatogonial Stem Cell Self-Renewal and DifferentiationU54HD042454 · NICHD · UNIVERSITY OF WASHINGTON · PI BRAUN, ROBERT E · 2002 to 2016
$26.9M
METABOLISM AND FUNCTION OF CYCLIC NUCLEOTIDESR01DK021723 · NIDDK · UNIVERSITY OF WASHINGTON · PI BEAVO, JOSEPH A · 1986 to 2007
$2.9M
NICHD NIH HHS HD 42454NICHD NIH HHS U54 HD042454NIDDK NIH HHS DK 21723NIDDK NIH HHS R01 DK021723
6 · The paper itself

Abstract

Leydig cells produce testosterone in the testes under the pulsatile control of pituitary luteinizing hormone (LH). cAMP is the intracellular messenger for LH action on steroidogenesis, and pharmacological evidence indicates that the response to LH can be modulated by cyclic nucleotide phosphodiesterases (PDEs). However the types and roles of the PDEs present in Leydig cells have not been fully defined. We report here that PDE8A is expressed in Leydig cells, and using PDE8A knockout mice we provide evidence that PDE8A is a key regulator of LH signaling and steroidogenesis. A 4-fold increase in the sensitivity to LH for testosterone production was detected in Leydig cells isolated from PDE8A knockout mice. In Leydig cells from wild-type mice, 3-isobutyl-1-methylxanthine, a compound that inhibits all cAMP PDEs except PDE8A, elicited only a small increase in the sensitivity of testosterone production to LH. However, in the PDE8-null mice, the effect of this inhibitor is much more pronounced. These observations indicate that PDE8A and at least one other PDE control the same or a complementary pool of cAMP that mediates LH-regulated steroidogenesis. Overall, these results suggest that pharmacological manipulation of PDE8A, alone or in combination with other PDEs present in Leydig cells, may be exploited to modulate testosterone synthesis and possibly to treat various conditions where the local levels of this androgen need to be altered.

Indexed as

3',5'-Cyclic-AMP PhosphodiesterasesAnimalsIn Situ HybridizationLeydig CellsLuteinizing HormoneMaleMiceMice, Inbred C57BLMice, KnockoutModels, MolecularProtein Structure, Tertiary3',5'-Cyclic-AMP PhosphodiesterasesLuteinizing HormonePde8a protein, mouse

Identifiers

PMID17172443
PMCPMC1750886
OpenAlexW2089141991

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.