Evidence map›Paper›PMID 22569184›Full record

ArticleRetrovirology2012

HIV-1-encoded antisense RNA suppresses viral replication for a prolonged period.

Mie Kobayashi-Ishihara, Makoto Yamagishi, Takuma Hara, Yuka Matsuda, Ryutaro Takahashi, Ariko Miyake, Kazumi Nakano, Tadanori Yamochi, Takaomi Ishida, Toshiki Watanabe

Open access · goldAbstract read
In one paragraph

Article in Retrovirology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed, 1 pooled it
4.0field-weighted citation impact, top 5% 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

71 citing papers in PubMed, 1 synthesis or guideline pooled it, 104 citations in OpenAlex.

  1. Pooled it
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  13. Creation of the HIV-1 antisense geneMicrobiology spectrum · 2024
    Article
  14. Review
  15. Plumbing mysterious RNAs in "dark genome" for the conquest of human diseases.Molecular therapy : the journal of the American Society of Gene Therapy · 2023
    Review
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11 more citing papers are in PubMed but not listed here.

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 1 country.

Mie Kobayashi-IshiharaLaboratory of Tumor Cell Biology, Department of Medical Genome Sciences, Graduate School of Frontier Sciences, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo, 1088639, Japan.
Makoto Yamagishi
Takuma Hara
Yuka Matsuda
Ryutaro Takahashi
Ariko Miyake
Kazumi Nakano
Tadanori Yamochi
Takaomi Ishida
Toshiki Watanabe
The University of Tokyo · JPTokushima University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRecent evidence proposes a novel concept that mammalian natural antisense RNAs play important roles in cellular homeostasis by regulating the expression of several genes. Identification and characterization of retroviral antisense RNA would provide new insights into mechanisms of replication and pathogenesis. HIV-1 encoded-antisense RNAs have been reported, although their structures and functions remain to be studied. We have tried to identify and characterize antisense RNAs of HIV-1 and their function in viral infection.

resultsCharacterization of transcripts of HEK293T cells that were transiently transfected with an expression plasmid with HIV-1NL4-3 DNA in the antisense orientation showed that various antisense transcripts can be expressed. By screening and characterizing antisense RNAs in HIV-1NL4-3-infected cells, we defined the primary structure of a major form of HIV-1 antisense RNAs, which corresponds to a variant of previously reported ASP mRNA. This 2.6 kb RNA was transcribed from the U3 region of the 3' LTR and terminated at the env region in acutely or chronically infected cell lines and acutely infected human peripheral blood mononuclear cells. Reporter assays clearly demonstrated that the HIV-1 LTR harbours promoter activity in the reverse orientation. Mutation analyses suggested the involvement of NF-κΒ binding sites in the regulation of antisense transcription. The antisense RNA was localized in the nuclei of the infected cells. The expression of this antisense RNA suppressed HIV-1 replication for more than one month. Furthermore, the specific knockdown of this antisense RNA enhanced HIV-1 gene expression and replication.

conclusionsThe results of the present study identified an accurate structure of the major form of antisense RNAs expressed from the HIV-1NL4-3 provirus and demonstrated its nuclear localization. Functional studies collectively demonstrated a new role of the antisense RNA in viral replication. Thus, we suggest a novel viral mechanism that self-limits HIV-1 replication and provides new insight into the viral life cycle.

Indexed as

Gene Expression Regulation, ViralVirus ReplicationCell NucleusGenes, ReporterHEK293 CellsHIV-1HIV InfectionsHIV Long Terminal RepeatHumansLeukocytes, MononuclearMutationNF-kappa BNucleic Acid ConformationPlasmidsPromoter Regions, GeneticProvirusesNF-kappa BRNA, AntisenseRNA, MessengerRNA, Viral

Identifiers

PMID22569184
PMCPMC3410806
OpenAlexW2165473240

What OpenQuestion holds

Textmetadata
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.