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RNA-binding protein complex AMG-1/SLRP-1 mediates germline development and spermatogenesis by maintaining mitochondrial homeostasis in Caenorhabditis elegans [LACE-seq]

ABSTRACT: RNA-binding protein complex AMG-1/SLRP-1 mediates germline development and spermatogenesis by maintaining mitochondrial homeostasis in Caenorhabditis elegans [LACE-seq]

PROVIDER: PRJNA918365 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR22967853.fastq.gz	Fastqsanger.gz
	SRR22967854.fastq.gz	Fastqsanger.gz
	SRR22967855.fastq.gz	Fastqsanger.gz
	SRR22967856.fastq.gz	Fastqsanger.gz
	SRR22967857.fastq.gz	Fastqsanger.gz

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RNA-binding protein complex AMG-1/SLRP-1 mediates germline development and spermatogenesis by maintaining mitochondrial homeostasis in Caenorhabditis elegans [LACE-seq]

Project description:The mechanisms of RNA-binding proteins (RBPs)-mediated post-transcriptional regulation of pre-existing mRNAs, which is essential for spermatogenesis, remains poorly understood. Here, we identify a germline-specific mitochondrial RBP AMG-1, a homolog of mammalian LRPPRC, required for spermatogenesis in C. elegans. amg-1 mutation hinders germline development without affecting somatic development and leads to the aberrant mitochondrial morphology and structure associated with mitochondrial dysfunctions specifically in germline. We demonstrate that AMG-1 is most frequently bound to mtDNA-encoded 12S and 16S ribosomal RNA, the essential components of mitochondrial ribosome, and that 12S rRNA expression mediated by AMG-1 is crucial for germline mitochondrial protein homeostasis. Besides, mitochondrial dysfunction by AMG-1 mutation triggers sperm apoptosis in C. elegans. Furthermore, SLRP-1, the homolog of mammalian SLIRP in C. elegans, interacts with AMG-1 genetically to regulate germline development and reproductive success in C. elegans. Taken together, these findings reveal the novel function of mtRBP in specifically regulating germline development.

2023-01-16 | GSE222138 | GEO

RNA-binding protein complex AMG-1/SLRP-1 mediates germline development and spermatogenesis by maintaining mitochondrial homeostasis in Caenorhabditis elegans [RNA-seq]

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RNA-binding protein complex AMG-1/SLRP-1 mediates germline development and spermatogenesis by maintaining mitochondrial homeostasis in Caenorhabditis elegans

Project description:RNA-binding protein complex AMG-1/SLRP-1 mediates germline development and spermatogenesis by maintaining mitochondrial homeostasis in Caenorhabditis elegans

| PRJNA918363 | ENA

RNA-binding protein complex AMG-1/SLRP-1 mediates germline development and spermatogenesis by maintaining mitochondrial homeostasis in Caenorhabditis elegans [RNA-seq]

Project description:RNA-binding protein complex AMG-1/SLRP-1 mediates germline development and spermatogenesis by maintaining mitochondrial homeostasis in Caenorhabditis elegans [RNA-seq]

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SRSF2 is required for mRNA splicing and spermatogenesis [LACE-seq]

Project description:Serine/arginine-rich splicing factor 2 (SRSF2), also known as SC35, is a member of a SRs protein family, which plays significant roles in numerous fundamental biological activities. However, the roles and underlying mechanisms of SRSF2 remain largely unclear during spermatogenesis. Here, we report that SRSF2 is involved in alternative splicing and that male germ cell-specific deletion of Srsf2 by Stra8-GFPCre causes absolute infertility and defective spermatogenesis. Further analyses revealed that deletion of Srsf2 in the male germ cells had harmful influences on the differentiation of spermatogonia and meiosis initiation. Mechanistically, by combining RNA-seq data with LACE-seq data, we showed that spermatogenesis, meiotic cell cycle, male gamete generation, reproductive development, and male sex differentiation were involved in the SRSF2 regulatory networks. Furthermore, SRSF2 affects expression and AS of Stra8, Stag3 and Atr in a direct manner, which were critical factors during spermatogenesis. Taken together, our results demonstrate that SRSF2 has important functions in spermatogenesis and male fertility by regulating alternative splicing.

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SRSF2 is required for mRNA splicing and spermatogenesis [LACE-seq]

Project description:SRSF2 is required for mRNA splicing and spermatogenesis [LACE-seq]

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Transcription profiling of rat tissues dosed with AMG A or AMG B

Project description:To evaluate and characterize gene expression changes and toxicity following oral gavage administration of AMG A & AMG B in male Sprague Dawley rats. Experiment Overall Design: This toxicogenomics study is designed to determine the toxicity and gene expression of AMG A and AMG B dosed orally daily (AMG A at 0mg/kg, 3mg/kg and 30 mg/kg and AMG B at 0mg/kg, 3mg/kg and 60mg/kg) for 1, 4 and 14 days. These doses are expected to produce mild and moderate changes in clinical pathology and histology associated with the pharmacologic antiangiogenic effect.

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Expression data from rat tissues dosed with AMG A or AMG B

Project description:To evaluate and characterize gene expression changes and toxicity following oral gavage administration of AMG A & AMG B in male Sprague Dawley rats. Keywords: dose response

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SRSF1-mediated alternative splicing is required for spermatogonial stem cell differentiation and mitotic-to-meiotic transition [LACE-seq]

Project description:Alternative splicing (AS) plays significant roles in fundamental biological activities. AS also are prevalent in the testis, but the regulations of alternative splicing in spermatogenesis is vague. Here, we report that Serine/arginine-rich splicing factor 1 (SRSF1), plays critical roles in alternative splicing and male reproduction. Male germ cell-specific deletion of Srsf1 led to complete infertility and abnormal spermatogenesis. We further demonstrated that Srsf1 is required for spermatogonial stem cell differentiation and mitotic-to-meiotic transition. Mechanistically, by combining RNA-seq data with LACE-seq data, we showed that SRSF1 regulatory networks have functions in spermatogenesis. Particularly, we found that SRSF1 affects the AS of Stra8 in a direct manner and Dazl, Dmc1, Mre11a, Syce2 and Rif1 in an indirect manner. Taken together, our findings demonstrate that SRSF1 has crucial functions in spermatogenesis and male fertility by regulating alternative splicing.

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SRSF2 is required for mRNA splicing and spermatogenesis [RNA-seq]

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