Evidence map›Paper›PMID 19584288›Full record

ArticleCancer research2009

Kruppel-associated box domain-associated protein-1 as a latency regulator for Kaposi's sarcoma-associated herpesvirus and its modulation by the viral protein kinase.

Pei-Ching Chang, Latricia D Fitzgerald, Albert Van Geelen, Yoshihiro Izumiya, Thomas J Ellison, Don-Hong Wang, David K Ann, Paul A Luciw, Hsing-Jien Kung

Open access · greenAbstract read
In one paragraph

Article in Cancer research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed
3.1field-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

81 citing papers in PubMed, 97 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. KAP1 in antiviral immunity: dual roles in viral silencing and immune regulation.Frontiers in cellular and infection microbiology · 2025
    Review
  8. Article
  9. Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Review
  20. Article

21 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

9 authors at 2 institutions in 1 country.

Pei-Ching ChangDepartment of Biological Chemistry and Molecular Medicine and University of California-Davis Cancer Center, California 95817, USA.
Latricia D Fitzgerald
Albert Van Geelen
Yoshihiro Izumiya
Thomas J Ellison
Don-Hong Wang
David K Ann
Paul A Luciw
Hsing-Jien Kung
University of California, Davis · USCity Of Hope National Medical Center · US

Funding

Staff InvestigatorsP30CA093373 · NCI · UNIVERSITY OF CALIFORNIA DAVIS · PI Laura Marcu · 2002 to 2026
$84.9M
ORF36 Viral Kinase as a Transcriptional Regulator of KSHVP01DE019085 · NIDCR · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI SUN, REN · 2008 to 2012
$6.4M
Training Program in Oncogenic Signals and Chromosome BiologyT32CA108459 · NCI · UNIVERSITY OF CALIFORNIA AT DAVIS · PI HEYER, WOLF-DIETRICH · 2006 to 2020
$3.6M
Androgen signaling and kinase regulation in PCAR01CA114575 · NCI · UNIVERSITY OF CALIFORNIA DAVIS · PI KUNG, HSING-JIEN · 2005 to 2009
$1.3M
K-bZIP and Transcriptional Regulation of KSHVR01CA111185 · NCI · UNIVERSITY OF CALIFORNIA DAVIS · PI KUNG, HSING-JIEN · 2004 to 2008
$1.1M
NCI NIH HHS CA111185NCI NIH HHS CA114575-S1NCI NIH HHS P30 CA093373NCI NIH HHS R01 CA111185NCI NIH HHS R01 CA114575NCI NIH HHS T32 CA108459NIDCR NIH HHS DE019085NIDCR NIH HHS P01 DE019085
6 · The paper itself

Abstract

Kaposi's sarcoma-associated herpesvirus (KSHV) has been linked to the development of Kaposi's sarcoma, a major AIDS-associated malignancy, and to hematologic malignancies, including primary effusion lymphoma and multicentric Castleman's disease. Like other herpesviruses, KSHV is capable of both latent and lytic replication. Understanding the molecular details associated with this transition from latency to lytic replication is key to controlling virus spread and can affect the development of intervention strategies. Here, we report that Kruppel-associated box domain-associated protein-1 (KAP-1)/transcriptional intermediary factor 1beta, a cellular transcriptional repressor that controls chromosomal remodeling, participates in the process of switching viral latency to lytic replication. Knockdown of KAP-1 by small interfering RNA leads to KSHV reactivation mediated by K-Rta, a key transcriptional regulator. In cells harboring latent KSHV, KAP-1 was associated with the majority of viral lytic-gene promoters. K-Rta overexpression induced the viral lytic cycle with concomitant reduction of KAP-1 binding to viral promoters. Association of KAP-1 with heterochromatin was modulated by both sumoylation and phosphorylation. During lytic replication of KSHV, KAP-1 was phosphorylated at Ser(824). Several lines of evidence directly linked the viral protein kinase to this post-translational modification. Additional studies showed that this phosphorylation of KAP-1 produced a decrease in its sumoylation, consequently decreasing the ability of KAP-1 to condense chromatin on viral promoters. In summary, the cellular transcriptional repressor KAP-1 plays a role in regulating KSHV latency, and viral protein kinase modulates the chromatin remodeling function of this repressor.

Indexed as

Blotting, WesternCell LineCell Line, TumorChromatin ImmunoprecipitationGreen Fluorescent ProteinsHerpesvirus 8, HumanHumansImmediate-Early ProteinsPhosphorylationProtein BindingProtein KinasesRepressor ProteinsRNA InterferenceSerineSmall Ubiquitin-Related Modifier ProteinsTrans-ActivatorsGreen Fluorescent ProteinsImmediate-Early ProteinsProtein KinasesRepressor ProteinsRta protein, Human herpesvirus 8SerineSmall Ubiquitin-Related Modifier ProteinsTrans-ActivatorsTRIM28 protein, humanTripartite Motif-Containing Protein 28Viral Proteins

Identifiers

PMID19584288
PMCPMC2731626
OpenAlexW2122553957

What OpenQuestion holds

Textmetadata
LicenceTDM
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.