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A herpesvirus microRNA targets host microRNA processing to promote virus reactivation from latency [Lytic infection]

ABSTRACT: In a major study, we found that miR-aU14, a potential miRNA expressed by human herpesvirus 6A (HHV-6A), acts to selectively inhibit the processing of members of the human miR-30 family through direct RNA:RNA interaction and causes changes in mitochondrial arcchitecture through p53-Drp1 axis. In order to characterize miR-aU14 during virus reactivation, we carried out small RNA-seq from U2-OS cells carrying latent HHV-6A. Virus reactivation was carried out using 80 ng/ml of Trichostatin-A (TSA).

ORGANISM(S): Homo sapiens

PROVIDER: GSE179865 | GEO | 2022/02/17

REPOSITORIES: GEO

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A herpesvirus microRNA targets host microRNA processing to promote virus reactivation from latency [Latent reactivation]

Project description:In a major study, we found that miR-aU14, a potential miRNA expressed by human herpesvirus 6A (HHV-6A), acts to selectively inhibit the processing of members of the human miR-30 family through direct RNA:RNA interaction and causes changes in mitochondrial arcchitecture through p53-Drp1 axis. In order to characterize miR-aU14 during virus reactivation, we carried out small RNA-seq from U2-OS cells carrying latent HHV-6A. Virus reactivation was carried out using 80 ng/ml of Trichostatin-A (TSA).

2022-02-15 | GSE179864 | GEO

A herpesvirus microRNA targets host microRNA processing to promote virus reactivation from latency [dRNA-seq]

Project description:In a major study, we found that miR-aU14, a potential miRNA expressed by human herpesvirus 6A (HHV-6A), acts to selectively inhibit the processing of members of the human miR-30 family through direct RNA:RNA interaction and causes changes in mitochondrial arcchitecture through p53-Drp1 axis. In order to characterize miR-aU14, we carried out differentia lRNA-seq (dRNA-seq) from HHV-6A lytic infected HSB2 cells.

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Protemics of human cell during HHV-6A reactivation

Project description:HHV-6A is a human herpesvirus that integrates into human sub telomeric regions to acquire latency. This latent virus frequently reactivates causing numerous diseases. The project was aimed to understand changes in host cell prteomics upon virus reactivation, which might helpin understanding the pathophysiology of virus reactivation.

2020-04-07 | PXD016211 | Pride

Human Herpesvirus 6A encoded miRNAs: A role in viral lytic replication

Project description:We report the application of size selection of small RNA species isolated from Jjhan cells harboring the human herpesvirus 6A genome. We ammassed >3.4million reads of sequence from three different sources: Normal Brain cell total RNA, Jjhan total RNA and HHV-6A BAC transfected Jjhan total RNA. Sequences were mapped to the HHV-6A Uganda 1102 strain genome (GenBank: X83413.1) with no less than 100% match for reads >20nt and <23nt. The resulting pool of candidates was mapped to the HHV-6A genome. Single pass 36nt sequencing of samples either with or without HHV-6a genomes present.

2015-01-09 | E-GEOD-62233 | biostudies-arrayexpress

Human Herpesvirus 6A encoded miRNAs: A role in viral lytic replication

2015-01-09 | GSE62233 | GEO

Transcriptomics of small RNAs upon HHV-6A reactivation

Project description:In order to understand the effect of HHV-6A reactivation on host cell, U2-OS bone osteosarcoma cells were generated carrying latent HHV-6A genome. These cells were either treated with DMSO (solvent control) or Trichostatin-A (TSA) for viral reactivation. As a control cells carrying no HHV-6A were used and treated similarly. Two biological replicates of each sample were processed for small RNA transcriptomics (small RNAseq). Furthermore, HeLa (cervical epithelial cells) were generated carrying lentiviral insertions of one of the small non-coding RNA from HHV-6A (sncRNA-U14). These cells could be transiently induced for sncRNA-U14 transcription using Doxycycline. HeLa cells having a mock lentiviral backbone was used as a control and was treated similarly. Two biological replicates of each sample were processed for small RNA transcriptomics (small RNAseq).

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Small RNA deep-sequencing identifies microRNAs and other small non-coding RNAs from human herpesvirus 6 (HHV-6B)

Project description:Roseolovirus, or human herpesvirus 6 (HHV-6) is a ubiquitous human pathogen infecting over 95% of the population by the age of two years. As with other herpesviruses, reactivation of HHV-6 can present with severe complications in immunocompromised individuals. Recent studies have highlighted the importance of herpesvirus-derived micro (mi)RNAs in modulating both cellular and viral gene expression. An initial report, which computed the likelihood of various viruses to encode for miRNAs, did not predict HHV-6 miRNAs. To experimentally screen for small HHV-6 encoded RNAs, we conducted large-scale sequencing of Sup-T-1 cells lytically infected with a laboratory strain of HHV-6B. This revealed an abundant 60-65 nucleotide RNA of unknown function derived from the lytic origin of replication (OriLyt) that gave rise to smaller RNA species of 18-19 nucleotides in length. In addition, we identified four pre-miRNAs, whose mature forms accumulated in Argonaute 2. In contrast to other beta-herpesviruses, HHV-6B miRNAs are expressed from direct repeat regions (DRL and DRR) located at either side of the genome. All miRNAs are conserved in the closely related HHV-6A variant, and one of them is a seed ortholog of the human miR-582-5p. Similar to alpha-herpesvirus miRNAs, they are expressed antisense to immediate early ORFs and thus have the potential to regulate key viral regulators. Small RNA sequencing from total RNA or Ago2 associated small RNAs extracted from HHV-6 infected Sup-T-1 cells

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Project description:Transcriptomics of small RNAs upon HHV-6A reactivation

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RNA sequencing analysis of HHV-6A-infected T cells

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Single-Cell Transcriptomics of Epstein-Barr Virus and Human Herpesvirus 6 Coinfection

Project description:Epstein-Barr virus (EBV) and human herpesvirus 6 (HHV-6) infection is widespread among people. Here I describe single-cell RNA sequencing of two lymphoblastoid cell lines harboring both episomal EBV and inherited chromosomally integrated HHV-6. Rare instances of HHV-6 expression appear enriched with EBV reactivation.

2023-05-24 | GSE230239 | GEO

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