Evidence map›Paper›PMID 32166374›Full record

ArticleArchives of dermatological research2020

PIWIL-2 and piRNAs are regularly expressed in epithelia of the skin and their expression is related to differentiation.

Johannes Pammer, Heidi Rossiter, Martin Bilban, Leopold Eckhart, Maria Buchberger, Laura Monschein, Michael Mildner

Open access · hybridAbstract read
In one paragraph

Article in Archives of dermatological research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.9field-weighted citation impact, top 13% 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

10 citing papers in PubMed, 15 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

7 authors at 1 institution in 1 country.

Johannes PammerClinical Institute of Pathology, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria. johannes.pammer@meduniwien.ac.at.
Heidi RossiterDepartment of Dermatology, Medical University of Vienna, Vienna, Austria.
Martin BilbanDepartment of Laboratory Medicine and Core Facility Genomics, Medical University of Vienna, Vienna, Austria.
Leopold EckhartDepartment of Dermatology, Medical University of Vienna, Vienna, Austria.
Maria BuchbergerDepartment of Dermatology, Medical University of Vienna, Vienna, Austria.
Laura MonscheinClinical Institute of Pathology, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria.
Michael MildnerDepartment of Dermatology, Medical University of Vienna, Vienna, Austria.
Medical University of Vienna · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

PIWI proteins play multiple roles in germline stem cell maintenance and self-renewal. PIWI-interacting RNAs (piRNAs) associate with PIWI proteins, form effector complexes and maintain genome integrity and function in the regulation of gene expression by epigenetic modifications. Both are involved in cancer development. In this study, we investigated the expression of PIWIL-2 and piRNAs in normal human skin and epithelial tumors and its regulation during keratinocyte (KC) differentiation. Immunohistochemistry showed that PIWIL-2 was regularly expressed in the epidermis and adnexal tissue with strongest expression in sebaceous glands. Cell culture studies revealed an association of PIWIL-2 expression with the state of differentiated KC. In contrast, the PIWIL-2 expression pattern did not correlate with stem cell compartments or malignancy. piRNAs were consistently detected in KC in vitro by next-generation sequencing and the expression levels of numerous piRNAs were regulated during KC differentiation. Epidermal piRNAs were predominantly derived from processed snoRNAs (C/D-box snoRNAs), tRNAs and protein coding genes. Our data indicate that components of the PIWIL-2-piRNA pathway are present in epithelial cells of the skin and are regulated in the context of KC differentiation, suggesting a role of somatic gene regulation. However, putative roles in the maintenance of stem cell compartments or the development of malignancy in the skin were not supported by this study.

Indexed as

AnimalsArgonaute ProteinsBiopsyCell DifferentiationEpidermisGene Expression RegulationHigh-Throughput Nucleotide SequencingHumansKeratinocytesMicePrimary Cell CultureRNA-SeqRNA, Small InterferingSebaceous GlandsArgonaute ProteinsPIWIL2 protein, humanPiwil2 protein, mouseRNA, Small InterferingCarcinomaHiliKeratinocytencRNApiRNAPIWIL2Skin

Identifiers

PMID32166374
PMCPMC7548280
OpenAlexW3012558435

What OpenQuestion holds

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LicenceCC BY
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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.