Evidence map›Paper›PMID 9765424›Full record

ArticleJournal of virology1998

CD4 promoter transactivation by human herpesvirus 6.

L Flamand, F Romerio, M S Reitz, R C Gallo

Open access · bronzeAbstract read
In one paragraph

Article in Journal of virology, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.4field-weighted citation impact, top 19% 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

13 citing papers in PubMed, 44 citations in OpenAlex.

  1. Review
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  8. Left out but not forgotten: Should closer attention be paid to coinfection with herpes simplex virus type 1 and HIV?The Canadian journal of infectious diseases & medical microbiology = Journal canadien des maladies infectieuses et de la microbiologie medicale · 2009
    Article
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  11. Review
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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

4 authors at 2 institutions in 2 countries.

L FlamandLaboratory of Virology, Rheumatology and Immunology Research Center, Centre de Recherche du CHUL and Laval University, Sainte-Foy, Quebec, Canada. louis.flamand@crchul.ulaval.ca
F Romerio
M S Reitz
R C Gallo
University of Maryland, Baltimore · USUniversité Laval · CA

Funding

HHV-6 IN AIDS--MECHANISMS OF CD4 GENE ACTIVATIONR03AI041854 · NIAID · UNIVERSITY OF MARYLAND COLLEGE PK CAMPUS · PI REITZ, MARVIN S · 1997 to 1998
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NIAID NIH HHS R03 AI41854-02
6 · The paper itself

Abstract

The observation that human herpesvirus 6 (HHV-6) can induce CD4 gene transcription and expression in CD4(-) cells was reported several years ago (P. Lusso, A. De Maria, M. Malnati, F. Lori, S. E. DeRocco, M. Baseler, and R. C. Gallo, Nature 349:533-535, 1991) and subsequently confirmed (P. Lusso, M. S. Malnati, A. Garzino-Demo, R. W. Crowley, E. O. Long, and R. C. Gallo, Nature 362:458-462, 1993; G. Furlini, M. Vignoli, E. Ramazzotti, M. C. Re, G. Visani, and M. LaPlaca, Blood 87:4737-4745, 1996). Our objective was to identify the mechanisms underlying such phenomena. Using reporter gene constructs driven by the CD4 promoter, we report that HHV-6 can efficiently transactivate such genetic elements. Activation of the CD4 promoter occurs in the presence of the viral DNA polymerase inhibitor phosphonoformic acid, which limits expression to the immediate-early and early classes of viral genes. Using deletion mutants and specific CD4 promoter mutants, we identified an ATF/CRE binding site located at nucleotides -67 to -60 upstream of the CD4 gene transcription start site that is important for HHV-6 transactivation. The ATF/CRE site is also essential for CD4 promoter activation by forskolin, an activator of adenylate cyclase. Using electrophoretic mobility shift assays and specific antibodies, we showed that CREB-1 binds specifically to the -79 to -52 region of the CD4 promoter. Last, we have identified two open reading frames (ORFs) of HHV-6, U86 and U89 from the immediate-early locus A, that can transactivate the CD4 promoter in HeLa cells. However, transactivation of the CD4 promoter by ORFs U86 and U89 is independent of the CRE element, suggesting that additional HHV-6 ORFs are likely to contribute to CD4 gene activation. Taken together, our results will help to understand the complex interactions occurring between HHV-6 and the CD4 promoter and provide additional information regarding the class of transcription factors involved in the control of CD4 gene expression.

Indexed as

Promoter Regions, GeneticTranscriptional ActivationBase SequenceBinding SitesCD4 AntigensCD4-Positive T-LymphocytesCell LineColforsinCyclic AMP Response Element-Binding ProteinDNA PrimersGenes, ViralHeLa CellsHerpesvirus 6, HumanHIV InfectionsHumansKineticsCD4 AntigensColforsinCyclic AMP Response Element-Binding ProteinDNA PrimersTranscription Factors

Identifiers

PMID9765424
PMCPMC110296
OpenAlexW2148551962

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.