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Simultaneous activation of Tor and suppression of ribosome biogenesis by TRIM-NHL proteins promotes terminal differentiation

ABSTRACT: Simultaneous activation of Tor and suppression of ribosome biogenesis by TRIM-NHL proteins promotes terminal differentiation

PROVIDER: PRJNA902740 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR26619841.fastq.gz	Fastqsanger.gz
	SRR26619842.fastq.gz	Fastqsanger.gz
	SRR26619843.fastq.gz	Fastqsanger.gz
	SRR26619844.fastq.gz	Fastqsanger.gz
	SRR26619845.fastq.gz	Fastqsanger.gz

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Simultaneous activation of Tor and suppression of ribosome biogenesis by TRIM-NHL proteins promotes terminal differentiation

Project description:Tissue development and homeostasis depend on the balance between growth and terminal differentiation, but the mechanisms coordinating these processes remain elusive. Accumulating evidence indicates that ribosome biogenesis (RiBi) and protein synthesis, two cellular processes sustaining growth, are tightly regulated and yet can be uncoupled during stem cell differentiation. Using the Drosophila adult female germline stem cell (GSC) and larval neuroblast (NB) systems, we show that Mei-P26 and Brat, two Drosophila TRIM-NHL paralogs, are responsible for uncoupling RiBi and protein synthesis during differentiation. In differentiating cells, Mei-P26 and Brat activate the Target of rapamycin (Tor) kinase to promote translation, while concomitantly repressing RiBi. Depletion of Mei-P26 or Brat results in defective terminal differentiation, which can be rescued by ectopic activation of Tor together with suppression of RiBi. Our results indicate that uncoupling RiBi and translation activities by TRIM-NHL activity creates the conditions required for terminal differentiation.

2023-03-03 | GSE218205 | GEO

Post-transcriptional regulation by the let-7 microRNA and the TRIM-NHL protein LIN41

Project description:Post-transcriptional regulation by the let-7 microRNA and the TRIM-NHL protein LIN41

| PRJNA318055 | ENA

Casein kinase II suppresses autophagy by activating Filamin-NHL containing TRIM proteins

Project description:Autophagy is a tightly regulated process integral to cellular homeostasis and innate immunity. As such, dysregulation of autophagy is associated with cancer, neurodegenerative disorders, and infectious diseases. While many factors have been characterized that promote autophagy, key players preventing excessive autophagy are less well understood. Here, we identify Casein kinase II (CK2) as a negative regulator of autophagy. Pharmacological inhibition of CK2 activity or siRNA-mediated depletion of CK2 increased basal autophagic flux in cell lines and primary human lung cells. Vice versa, ectopic expression of CK2 reduced autophagic flux. Mechanistically, CK2 interacts with tripartite motif (TRIM) family members TRIM2, TRIM3 and TRIM71 at their shared C-terminal NHL domain. This interaction was required for autophagy inhibition by CK2. TRIM3 was highly phosphorylated by CK2 at serine 661, and a phosphorylation-defective mutant of TRIM3 was unable to reduce autophagy induction. Targeting of the CK2-TRIM axis promoted autophagy during influenza A virus (IAV) and measles virus (MeV) infection. In line with this, inhibition of CK2 enhanced autophagy-dependent restriction of IAV, MeV and human immunodeficiency virus 1 (HIV-1). Thus, our results identify the CK2-TRIM2/3/71 axis as a key regulatory pathway that limits autophagy. Targeting this axis may allow therapeutic induction of autophagy against viral infections and diseases associated with dysregulated autophagy.

2023-05-16 | MSV000091956 | MassIVE

Tor tor

Project description:Tor tor overview

| PRJNA973154 | ENA

Tor tor

Project description:Tor tor Partial genome sequencing

| PRJNA638510 | ENA

rnai tor time course - The signalization way TOR/PTEN in Arabidopsis

Project description:gnp_blan06_torpten - rnai tor time course - The impact of the TOR pathway on growth and stress responses. Modification of translational and transcriptional profiles in Tor-inducible RNAi mutants and identification of TOR targets.

2011-01-07 | GSE25701 | GEO

RNA co-immunoprecipitation coupled to RNA sequencing (RIP-seq) to identify somatic target mRNAs of the TRIM-NHL protein LIN41

Project description:RNA co-immunoprecipitation coupled to RNA sequencing (RIP-seq) to identify somatic target mRNAs of the TRIM-NHL protein LIN41

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tor-Transcriptome analysis of TOR (Target of Rapamycin) mutant.

Project description:ra03-07_tor - tor - Study of 2 TOR mutants (7817 Strong, 7846 weak) - Mutant vs wild type on different nitrogen conditions (10mM=control and 100uM) Keywords: treated vs untreated comparison,wt vs mutant comparison

2007-06-20 | GSE7987 | GEO

rnai tor time course - The signalization way TOR/PTEN in Arabidopsis

2011-01-07 | E-GEOD-25701 | biostudies-arrayexpress

dark hypocotyls tor rnai-Dark hypocotyls TOR RNAi

Project description:fapesp-bra-inra-10-01_bioen_hypocotyl - dark hypocotyls tor rnai - Transcriptional comparison between 2 TOR RNAi mutants versus GUS control. - Sowing after 24h imbibition at 4°C in the dark, on MS1/5, no sucrose, 10 mM ethanol, 8 g/l agar, vertical growth with 3h light, 6 days growth in the dark (20°C), hypocotyls were harvested under green light ; cotyledons and root were removed.

2012-10-10 | GSE41404 | GEO

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