Evidence map›Paper›PMID 14968115›Full record

ArticleOncogene2004

Expression of human papillomavirus type 16 E6 and E7 oncoproteins in primary foreskin keratinocytes is sufficient to alter the expression of angiogenic factors.

Esra Toussaint-Smith, David B Donner, Ann Roman

Abstract read
PubMed Publisher
In one paragraph

Article in Oncogene, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers.

0numbers the graph read from it
0cells of the map it votes in
58citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

58 citing papers in PubMed, 148 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

3 authors at 2 institutions in 1 country.

Esra Toussaint-SmithDepartment of Microbiology and Immunology and Walther Oncology Center, Indiana University School of Medicine and Walther Cancer Institute, IN 46202-5120, USA.
David B Donner
Ann Roman
Indiana University · USWalther Cancer Foundation · US

Funding

VIRAL DETERMINANTS OF HSV DISEASE IN MICEU19AI031494 · NIAID · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI KATZ, BARRY P. · 1995 to 2009
$13.6M
Tumor Necrosis Factor Action in CellsR01CA067891 · NCI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI DONNER, DAVID B · 1997 to 2006
$2.2M
VASCULAR ENDOTHELIAL CELL GROWTH FACTOR IN PATHOLOGYR01CA073023 · NCI · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI DONNER, DAVID B · 1997 to 2001
$481k
TUMOR NECROSIS FACTOR ACTION IN CELLSR55CA067891 · NCI · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI DONNER, DAVID B · 1996 to 1996
–
VARIABILITY IN HERPES SIMPLEX VIRUS GLYCOPROTEINS AND INFECTIVITYU01AI031494 · NIAID · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI JONES, ROBERT B · 1991 to 1994
–
NCI NIH HHS CA67891NCI NIH HHS CA73023NIAID NIH HHS AI31494
6 · The paper itself

Abstract

Human papillomavirus (HPV) 16 is involved in causing cervical cancer. The E6 and E7 proteins of HPV 16 immortalize human keratinocytes and this is due, at least in part, to inactivation of the tumor suppressor proteins p53 and pRB. These tumor suppressor proteins also regulate the expression of pro- and antiangiogenic factors by cells. For this reason, experiments were conducted to determine whether the expression of E6 and E7 in primary keratinocytes alters the phenotype of these cells such that they express diminished levels of antiangiogenic factors and/or increased levels of proangiogenic factors. To avoid variances in experimental observations, pools of human foreskin keratinocytes from multiple sources were infected with recombinant retrovirus expressing HPV 16 E6 and E7 or control retrovirus. Gene array analysis, RT-PCR, ELISAs and Western blotting showed that in cells expressing HPV 16 E6 and E7, expression levels of two potent angiogenesis inhibitors, thrombospondin-1 and maspin, were lower compared to controls. Additionally, major angiogenesis inducers, interleukin-8 and vascular endothelial growth factor (VEGF), were increased relative to controls. VEGF can be produced as multiple splice variants, all of which are required for the formation of patent blood vessels. The expression of HPV 16 E6 and E7 in keratinocytes augmented expression of VEGF 121, 145, 165 and 189. These observations show that HPV 16 E6 and E7 alter the phenotype of primary keratinocytes, diminishing expression of inhibitors and increasing expression of inducers of angiogenesis. This altered phenotype may permit keratinocytes infected by HPV 16 to play a role in the progression of cancer by permitting tumors to acquire a blood supply permissive of growth and spread.

Indexed as

Repressor ProteinsCells, CulturedHumansInfant, NewbornInterleukin-8KeratinocytesMaleOligonucleotide Array Sequence AnalysisOncogene Proteins, ViralPapillomaviridaePapillomavirus E7 ProteinsProtein-Tyrosine KinasesRecombinant ProteinsReverse Transcriptase Polymerase Chain ReactionSkinTransfectionE6 protein, Human papillomavirus type 16Interleukin-8oncogene protein E7, Human papillomavirus type 16Oncogene Proteins, ViralPapillomavirus E7 ProteinsProtein-Tyrosine KinasesRecombinant ProteinsRepressor Proteins

Identifiers

PMID14968115
OpenAlexW2007672298

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.