Evidence map›Paper›PMID 27849015›Full record

ArticleScientific reports2016

Sterile inflammation as a factor in human male infertility: Involvement of Toll like receptor 2, biglycan and peritubular cells.

C Mayer, M Adam, L Glashauser, K Dietrich, J U Schwarzer, F-M Köhn, L Strauss, H Welter, M Poutanen, A Mayerhofer

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

27 citing papers in PubMed, 58 citations in OpenAlex.

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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

10 authors at 2 institutions in 2 countries.

C MayerBiomedical Center (BMC), Cell Biology, Anatomy III, Ludwig-Maximilians-Universität (LMU), D-82152 Planegg, Germany.
M AdamBiomedical Center (BMC), Cell Biology, Anatomy III, Ludwig-Maximilians-Universität (LMU), D-82152 Planegg, Germany.
L GlashauserBiomedical Center (BMC), Cell Biology, Anatomy III, Ludwig-Maximilians-Universität (LMU), D-82152 Planegg, Germany.
K DietrichBiomedical Center (BMC), Cell Biology, Anatomy III, Ludwig-Maximilians-Universität (LMU), D-82152 Planegg, Germany.
J U SchwarzerAndrology-Center, D-81241 Munich, Germany.
F-M KöhnAndrologicum, D-80331 Munich, Germany.
L StraussTurku Center for Disease Modeling and Department of Physiology, Institute of Biomedicine, University of Turku, FL-20520 Turku, Finland.
H WelterBiomedical Center (BMC), Cell Biology, Anatomy III, Ludwig-Maximilians-Universität (LMU), D-82152 Planegg, Germany.
M PoutanenTurku Center for Disease Modeling and Department of Physiology, Institute of Biomedicine, University of Turku, FL-20520 Turku, Finland.
A MayerhoferBiomedical Center (BMC), Cell Biology, Anatomy III, Ludwig-Maximilians-Universität (LMU), D-82152 Planegg, Germany.
Ludwig-Maximilians-Universität München · DEUniversity of Turku · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Changes in the wall of seminiferous tubules in men with impaired spermatogenesis imply sterile inflammation of the testis. We tested the hypothesis that the cells forming the wall of seminiferous tubules, human testicular peritubular cells (HTPCs), orchestrate inflammatory events and that Toll like receptors (TLRs) and danger signals from the extracellular matrix (ECM) of this wall are involved. In cultured HTPCs we detected TLRs, including TLR2. A TLR-2 ligand (PAM) augmented interleukin 6 (IL-6), monocyte chemo-attractant protein-1 (MCP-1) and pentraxin 3 (PTX3) in HTPCs. The ECM-derived proteoglycan biglycan (BGN) is secreted by HTPCs and may be a TLR2-ligand at HTPCs. In support, recombinant human BGN increased PTX3, MCP-1 and IL-6 in HTPCs. Variable endogenous BGN levels in HTPCs derived from different men and differences in BGN levels in the tubular wall in infertile men were observed. In testes of a systemic mouse model for male infertility, testicular sterile inflammation and elevated estradiol (E2) levels, BGN was also elevated. Hence we studied the role of E2 in HTPCs and observed that E2 elevated the levels of BGN. The anti-estrogen ICI 182,780 blocked this action. We conclude that TLR2 and BGN contribute to sterile inflammation and infertility in man.

Indexed as

AdultBiglycanChemokine CCL2C-Reactive ProteinEstradiolFulvestrantHumansInfertility, MaleInflammationInterleukin-6MaleMiddle AgedPentraxinsSeminiferous TubulesSerum Amyloid P-ComponentToll-Like Receptor 2BiglycanCCL2 protein, humanChemokine CCL2C-Reactive ProteinEstradiolFulvestrantIL6 protein, humanInterleukin-6PentraxinsSerum Amyloid P-ComponentTLR2 protein, humanToll-Like Receptor 2

Identifiers

PMID27849015
PMCPMC5111051
OpenAlexW2556591952

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.