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The differentially expressed genes in SRSF3 siRNA-treated HCT116 cells

ABSTRACT: Several members of SRSF family play wide-ranging roles in the regulation of transcription and post-splicing processes as well as splice sites selection. Although the expression of SRSF3 was reported to be overexpressed in several cancers, the roles of SRSF3 in the cancer cells are almost unknown. We analyzed differentially expressed genes in SRSF3 siRNA-treated HCT116 cells and identified the specific pathways regulated by SRSF3. After treatment of HCT116 cells with SRSF3 (sample 02) or control (sample 01) siRNA, total RNA was extracted using RNeasy Mini Kit (Qiagen, Valencia, CA). The quality of the purified RNA and its applicability for microarray analysis were assessed by the Agilent 2100 Bioanalyzer using a RNA 6000 Nano Labchip kit (Agilent Technologies, Palo Alto, CA, USA). Total RNA (400 ng) was used for amplification, labeling and hybridization to a whole human genome oligoDNA microarray (4x44k; Agilent) according to the manufacture’s instructions.

ORGANISM(S): Homo sapiens

SUBMITTER: Ken Kurokawa

PROVIDER: E-GEOD-31876 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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The differentially expressed genes in SRSF3 siRNA-treated HCT116 cells

Project description:Several members of SRSF family play wide-ranging roles in the regulation of transcription and post-splicing processes as well as splice sites selection. Although the expression of SRSF3 was reported to be overexpressed in several cancers, the roles of SRSF3 in the cancer cells are almost unknown. We analyzed differentially expressed genes in SRSF3 siRNA-treated HCT116 cells and identified the specific pathways regulated by SRSF3.

2013-08-04 | GSE31876 | GEO

Analysis of gene expression and splicing after doxycycline-induced knockdown of SRSF3

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Analysis of gene expression and splicing after doxycycline-induced knockdown of SRSF3

Project description:SRSF3 is overexpressed in human invasive ovarian cancer and its overexpression is required for cancer cell growth and survival. To decipher the mechnisms behind the role of SRSF3 in ovarian cancer, we examined the gene expression and splicing in the ovarian cancer cell line that was engineered to express a doxycycline-induced SRSF3 siRNA, which was able to knockdown SRSF3 expression by 90% and induce apoptosis. Total RNAs extracted from A2780/SRSF3si2, a subline of ovarian cancer cell line A2780, treated with or without doxycycline at 0.1ug/ml for three days were analyzed using Affymetrix GeneChip® Human Exon 1.0 ST Array

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Host pathogen interaction between Staphylococcus aureus ATCC25923 and murine RAW264.7 macrophage-like cells

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Cardiomyocyte-specific Srsf3 deletion reveals a mitochondrial regulatory role

Project description:Serine-rich splicing factor 3 (SRSF3) was recently reported as being necessary to preserve RNA stability via an mTOR mechanism in a cardiac mouse model in adulthood. Here, we demonstrate the link between Srsf3 and mitochondrial integrity in an embryonic cardiomyocyte-specific Srsf3 conditional knockout (cKO) mouse model. Fifteen-day-old Srsf3 cKO mice showed dramatically reduced (below 50%) survival and reduced the left ventricular systolic performance, and histological analysis of these hearts revealed a significant increase in cardiomyocyte size, confirming the severe remodeling induced by Srsf3 deletion. RNA-seq analysis of the hearts of 5-day-old Srsf3 cKO mice revealed early changes in expression levels and alternative splicing of several transcripts related to mitochondrial integrity and oxidative phosphorylation. Likewise, the levels of several protein complexes of the electron transport chain decreased, and mitochondrial complex I-driven respiration of permeabilized cardiac muscle fibers from the left ventricle was impaired. Furthermore, transmission electron microscopy analysis showed disordered mitochondrial length and cristae structure. Together with its indispensable role in the physiological maintenance of mouse hearts, these results highlight the previously unrecognized function of Srsf3 in regulating the mitochondrial integrity.

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Homo sapiens

Project description:The differentially expressed genes in SRSF3 siRNA-treated HCT116 cells

| PRJNA145233 | ENA

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Srsf3 mediates alternative RNA splicing downstream of PDGFRα signaling.

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