Differential roles of human PUS10 in miRNA processing and tRNA pseudouridylation
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA512491 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR8383340_1.fastq.gz | Fastqsanger.gz | |||
| SRR8383340_2.fastq.gz | Fastqsanger.gz | |||
| SRR8383350.fastq.gz | Fastqsanger.gz | |||
| SRR8383360.fastq.gz | Fastqsanger.gz | |||
| SRR8383341.fastq.gz | Fastqsanger.gz |
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Project description:Pseudouridine synthases (PUSs) are responsible for the installation of pseudouridine (Ψ) modification in RNA. However, the activity and function of the PUS enzymes remain largely unexplored. Here we focus on human PUS10 and find that it co-expresses with the microprocessor (DROSHA–DGCR8 complex). Depletion of PUS10 results in a marked reduction of the expression level of a large number of mature miRNAs and concomitant accumulation of unprocessed primary microRNAs (pri-miRNAs) in multiple human cells. Mechanistically, PUS10 directly binds to pri-miRNAs and interacts with the microprocessor to promote miRNA biogenesis. Unexpectedly, this process is independent of the catalytic activity of PUS10. Additionally, we develop a sequencing method to profile Ψ in the tRNAome and report PUS10-dependent Ψ sites in tRNA. Collectively, our findings reveal differential functions of PUS10 in nuclear miRNA processing and in cytoplasmic tRNA pseudouridylation.
2019-11-21 | GSE124558 | GEO
Project description:Pseudouridine synthases (PUSs) catalyze the isomerization of uridine (U)-to-pseudouridine (Ψ) and have emerging roles in development and disease. How PUSs adapt gene expression under stress remains mostly unexplored. We identify an unconventional role for the Ψ “writer” PUS10 impacting intracellular innate immunity. Using Pus10 knock-out mice, we uncover cell-intrinsic upregulation of interferon (IFN) signalling, conferring resistance to inflammation in vivo. Pus10 loss alters tRNA-derived small RNAs (tdRs) abundance, perturbing translation and endogenous retroelements expression. We found one of the differentially expressed tDRs is derived from tRNA glycine (tDR Gly). To delinate the tDR Gly interactome, we employed an optimized pull-down strategy using PUS10 KO cells followed by data-independent acquisition-based quantitative mass spectrometry analysis.
2025-05-27 | PXD061235 | Pride
Project description:Pseudouridine synthases (PUSs) catalyze the isomerization of uridine (U)-to-pseudouridine (Ψ) and have emerging roles in development and disease. How PUSs adapt gene expression under stress remains mostly unexplored. We identify an unconventional role for the Ψ “writer” PUS10 impacting intracellular innate immunity. Using Pus10 knockout mice, we uncover cell-intrinsic upregulation of interferon (IFN) signaling, conferring resistance to inflammation in vivo. Pus10 loss alters tRNA-derived small RNAs (tdRs) abundance, perturbing translation and endogenous retroelements expression. These alterations promote proinflammatory RNA-DNA hybrids accumulation, potentially activating cyclic GMP-AMP synthase (cGAS)-stimulator of interferon gene (STING). Supplementation with selected tdR pools partly rescues these effects through interactions with RNA processing factors that modulate immune responses, revealing a regulatory circuit that counteracts cell-intrinsic inflammation. By extension, we define a PUS10-specific molecular fingerprint linking its dysregulation to human autoimmune disorders, including inflammatory bowel diseases. Collectively, these findings establish PUS10 as a viral mimicry modulator, with broad implications for innate immune homeostasis and autoimmunity.
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Project description:Pseudouridine (Y) is the most widespread RNA modification type on cellular RNAs and is dynamically catalyzed by a family of Y synthases (PUSes) in response to pathophysiological cues. PUS10 has been previously shown to regulate miRNA biogenesis in addition to modifying tRNAs, however its role in adapting gene expression to stress remains elusive. Here, we establish a novel role for PUS10 as a regulator of LTR retrotransposon-driven inflammatory response. Using Pus10 KO mice, we demonstrate that Pus10 depletion leads to upregulation of interferon-stimulated genes (ISGs) and increased resistance to viral infection in vitro and in vivo. Mechanistically, PUS10 regulates a subset of 5’-derived tRNA (tdR) fragment, 5’ tdR Gly-GCC, that via targeting specific LTR retroelements modulates RNA-DNA hybrids accumulation and cGAS/STING/IRF3 pathway. Importantly, reduced PUS10 activity correlate with chronic autoimmune conditions, pinpointing PUS10 as a potential contributor to human immune regulation.
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Project description:Pseudouridine (Y) is the most widespread RNA modification type on cellular RNAs and is dynamically catalyzed by a family of Y synthases (PUSes) in response to pathophysiological cues. PUS10 has been previously shown to regulate miRNA biogenesis in addition to modifying tRNAs, however its role in adapting gene expression to stress remains elusive. Here, we establish a novel role for PUS10 as a regulator of LTR retrotransposon-driven inflammatory response. Using Pus10 KO mice, we demonstrate that Pus10 depletion leads to upregulation of interferon-stimulated genes (ISGs) and increased resistance to viral infection in vitro and in vivo. Mechanistically, PUS10 regulates a subset of 5’-derived tRNA (tdR) fragment, 5’ tdR Gly-GCC, that via targeting specific LTR retroelements modulates RNA-DNA hybrids accumulation and cGAS/STING/IRF3 pathway. Importantly, reduced PUS10 activity correlate with chronic autoimmune conditions, pinpointing PUS10 as a potential contributor to human immune regulation.
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Project description:Pseudouridine (Y) is the most widespread RNA modification type on cellular RNAs and is dynamically catalyzed by a family of Y synthases (PUSes) in response to pathophysiological cues. PUS10 has been previously shown to regulate miRNA biogenesis in addition to modifying tRNAs, however its role in adapting gene expression to stress remains elusive. Here, we establish a novel role for PUS10 as a regulator of LTR retrotransposon-driven inflammatory response. Using Pus10 KO mice, we demonstrate that Pus10 depletion leads to upregulation of interferon-stimulated genes (ISGs) and increased resistance to viral infection in vitro and in vivo. Mechanistically, PUS10 regulates a subset of 5’-derived tRNA (tdR) fragment, 5’ tdR Gly-GCC, that via targeting specific LTR retroelements modulates RNA-DNA hybrids accumulation and cGAS/STING/IRF3 pathway. Importantly, reduced PUS10 activity correlate with chronic autoimmune conditions, pinpointing PUS10 as a potential contributor to human immune regulation.
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Project description:Pseudouridine (Y) is the most widespread RNA modification type on cellular RNAs and is dynamically catalyzed by a family of Y synthases (PUSes) in response to pathophysiological cues. PUS10 has been previously shown to regulate miRNA biogenesis in addition to modifying tRNAs, however its role in adapting gene expression to stress remains elusive. Here, we establish a novel role for PUS10 as a regulator of LTR retrotransposon-driven inflammatory response. Using Pus10 KO mice, we demonstrate that Pus10 depletion leads to upregulation of interferon-stimulated genes (ISGs) and increased resistance to viral infection in vitro and in vivo. Mechanistically, PUS10 regulates a subset of 5’-derived tRNA (tdR) fragment, 5’ tdR Gly-GCC, that via targeting specific LTR retroelements modulates RNA-DNA hybrids accumulation and cGAS/STING/IRF3 pathway. Importantly, reduced PUS10 activity correlate with chronic autoimmune conditions, pinpointing PUS10 as a potential contributor to human immune regulation.
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Project description:Pseudouridine (Y) is the most widespread RNA modification type on cellular RNAs and is dynamically catalyzed by a family of Y synthases (PUSes) in response to pathophysiological cues. PUS10 has been previously shown to regulate miRNA biogenesis in addition to modifying tRNAs, however its role in adapting gene expression to stress remains elusive. Here, we establish a novel role for PUS10 as a regulator of LTR retrotransposon-driven inflammatory response. Using Pus10 KO mice, we demonstrate that Pus10 depletion leads to upregulation of interferon-stimulated genes (ISGs) and increased resistance to viral infection in vitro and in vivo. Mechanistically, PUS10 regulates a subset of 5’-derived tRNA (tdR) fragment, 5’ tdR Gly-GCC, that via targeting specific LTR retroelements modulates RNA-DNA hybrids accumulation and cGAS/STING/IRF3 pathway. Importantly, reduced PUS10 activity correlate with chronic autoimmune conditions, pinpointing PUS10 as a potential contributor to human immune regulation.
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Project description:Human PUS7 in tRNA pseudouridylation
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Project description:Pseudouridine (Y) is the most widespread RNA modification type on cellular RNAs and is dynamically catalyzed by a family of Y synthases (PUSes) in response to pathophysiological cues. PUS10 has been previously shown to regulate miRNA biogenesis in addition to modifying tRNAs, however its role in adapting gene expression to stress remains elusive. Here, we establish a novel role for PUS10 as a regulator of LTR retrotransposon-driven inflammatory response. Using Pus10 KO mice, we demonstrate that Pus10 depletion leads to upregulation of interferon-stimulated genes (ISGs) and increased resistance to viral infection in vitro and in vivo. Mechanistically, PUS10 regulates a subset of 5’-derived tRNA (tdR) fragment, 5’ tdR Gly-GCC, that via targeting specific LTR retroelements modulates RNA-DNA hybrids accumulation and cGAS/STING/IRF3 pathway. Importantly, reduced PUS10 activity correlate with chronic autoimmune conditions, pinpointing PUS10 as a potential contributor to human immune regulation.
2025-06-13 | GSE291045 | GEO