Evidence map›Paper›PMID 12414956›Full record

ArticleJournal of virology2002

The human papillomavirus type 16 E5 protein impairs TRAIL- and FasL-mediated apoptosis in HaCaT cells by different mechanisms.

Kirsten Kabsch, Angel Alonso

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 14% 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, 1 synthesis or guideline pooled it, 115 citations in OpenAlex.

  1. The role of bevacizumab as an adjuvant to surgery in recurrent laryngeal papillomatosis: a systematic review of recurrence event outcomes.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2026
    Pooled it
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  5. FAS mediates apoptosis, inflammation, and treatment of pathogen infection.Frontiers in cellular and infection microbiology · 2025
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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

2 authors at 2 institutions in 1 country.

Kirsten KabschDeutsches Krebsforschungszentrum, 69120 Heidelberg, Germany. k.kabsch@dkfz-heidelberg.de
Angel Alonso
DKFZ-ZMBH Alliance · DEGerman Cancer Research Center · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The effect of the human papillomavirus type 16 (HPV-16) E5 protein on apoptosis was investigated by using the polyclonal HaCaT-cell lines stably transfected either with E5 (HaCaT/E5) or the empty vector (HaCaT/pMSG) as reference. Apoptosis was triggered either by Fas ligand (FasL) or by tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) and was monitored by detection of cleavage of procaspase-8 and procaspase-3, as well as their substrate poly(ADP-ribose) polymerase (PARP). In contrast to the HaCaT/pMSG control cells we found that apoptosis induced by either of the two ligands is strongly suppressed in the E5-expressing keratinocytes. Fas expression is reduced by about a factor of two in HaCaT/E5 cells, which could be part of the mechanisms that protect the cells from FasL-induced apoptosis. For the TRAIL receptors, no such downregulation was observed. Here, E5 impairs the formation of the death-inducing signaling complex triggered by TRAIL. Apparently, E5 employs different mechanisms to inhibit death receptor signaling. This effect is not restricted to HaCaT/E5 cells since we found that the mouse fibroblast cell line A31-E5 is protected from TRAIL-induced apoptosis, as well but not the E5-lacking control cells A31-Neo. However, no such protection was observed upon FasL-induced apoptosis. Presumably, some of the antiapoptotic mechanisms employed by E5 of the human pathogenic HPV-16 are cell type specific. We propose that inhibition of ligand-mediated apoptosis in human keratinocytes is a primary function of the HPV-16 E5 protein needed to prevent apoptosis at early stages of viral infection.

Indexed as

AnimalsApoptosisApoptosis Regulatory ProteinsCaspase 3Caspase 8Caspase 9CaspasesCell LineEnzyme PrecursorsFas Ligand Proteinfas ReceptorHumansMembrane GlycoproteinsMiceModels, BiologicalOncogene Proteins, ViralApoptosis Regulatory ProteinsCASP3 protein, humanCasp3 protein, mouseCASP8 protein, humanCasp8 protein, mouseCASP9 protein, humanCasp9 protein, mouseCaspase 3Caspase 8Caspase 9CaspasesEnzyme PrecursorsFASLG protein, humanFas Ligand ProteinFasl protein, mousefas ReceptorMembrane Glycoproteinsoncogene protein E5, Human papillomavirus type 16Oncogene Proteins, ViralPoly(ADP-ribose) PolymerasesReceptors, TNF-Related Apoptosis-Inducing LigandReceptors, Tumor Necrosis FactorTNF-Related Apoptosis-Inducing LigandTNFRSF10A protein, humanTNFRSF10B protein, humanTnfrsf10b protein, mouseTNFSF10 protein, humanTnfsf10 protein, mouseTumor Necrosis Factor-alphaViroporin Proteins

Identifiers

PMID12414956
PMCPMC136856
OpenAlexW2168005410

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.