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SF3B1 inhibitor pladienolide B induces pyroptosis of ovarian cancer cells

ABSTRACT: SF3B1 inhibitor pladienolide B induces pyroptosis of ovarian cancer cells

PROVIDER: PRJNA918583 | ENA |

REPOSITORIES: ENA

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SF3B1 inhibitor pladienolide B induces pyroptosis of ovarian cancer cells

Project description:In order to explore the effect of SF3B1 inhibitor, pladienolide B, on ovarian cancer cells, OVCAR8 cells were treated with DMSO or 2nM pladienolide B for 72h. Cells were collected and performed RNA sequencing.

2023-11-25 | GSE222199 | GEO

Citric acid, an ovarian cancer metabolite, induces pyroptosis via caspase-4/TXNIP-NLRP3-GSDMD pathway in ovarian cancer

Project description:Malignant tumors display profound changes in cellular metabolism, yet how these altered metabolites affect the development and growth of tumors is not fully understood. Here, we used metabolomics to analyze the metabolic profile differences in ovarian cancer, and found that citric acid (CA) is the most significantly downregulated metabolite. Recently, CA has been reported to inhibit the growth of a variety of tumor cells, but whether it is involved in pyroptosis of ovarian cancer and its potential molecular mechanisms still remains to be further investigated. Here, we demonstrated that CA inhibits the growth of ovarian cancer cells in a dose-dependent manner. RNA-seq analysis revealed that CA significantly promoted the expression of thioredoxin interacting protein (TXNIP) and caspase-4 (CASP4). Morphologic examination by transmission electron microscopy indicated that CA-treated ovarian cancer cells exhibited typical pyroptosis characteristics. Further mechanistic analyses showed that CA facilitates pyroptosis via CASP4/TXNIP-NLRP3-Gesdermin-d (GSDMD) pathway in ovarian cancer. This study elucidated that CA induces ovarian cancer cell death through classical and non-classical pyroptosis pathways, which may be beneficial as an ovarian cancer therapy.

2022-08-01 | GSE189851 | GEO

Regulation of pyroptosis in radiation induces mouse intestine cells

Project description:Pyroptosis is a recently discovered form of lytic cell death that is characterized by cell swelling and formation of pores and large bubbles on the plasma membrane. We find radiation could induce pyroptosis in human colorectal cancer HCT116 cells, and irradiation induces pyroptosis in mouse normal intestine MODEK cells only after 36 hours and over 8.0 Gy. In view of the significant pyroptosis effect of MODE-K cells, we selected 4Gy and 12Gy, 24h and 48h for experiments. After ONT full-length transcriptome sequencing, the cell pyroptosis model can screen out the differential genes related to cell pyroptosis, which is helpful to further explore the mechanism of pyroptosis of MODE-K cells.

2024-08-01 | GSE211709 | GEO

Citric acid, an ovarian cancer metabolite, induces pyroptosis via caspase-4/TXNIP-NLRP3-GSDMD pathway in ovarian cancer

Project description:Citric acid, an ovarian cancer metabolite, induces pyroptosis via caspase-4/TXNIP-NLRP3-GSDMD pathway in ovarian cancer

| PRJNA784786 | ENA

Regulation of pyroptosis in radiation induces mouse intestine cells

Project description:Regulation of pyroptosis in radiation induces mouse intestine cells

| PRJNA871879 | ENA

SF3B1 Degron knockdown RNA-seq

Project description:Knockdown of mutant and/or wild-type SF3B1 in MEL202 cell line by Degron knock-in, followed by RNA-seq, to identify splicing events governed by mutant SF3B1. Control: parental MEL202 cell line. Experiments: mutant-SF3B1 knockdown; wildtype-SF3B1 knockdown; mutant SF3B1 knockout. Treatments: each of these four conditions plus and minus shld.

2015-03-11 | E-GEOD-66719 | biostudies-arrayexpress

SF3B1

Project description:SF3B1

| PRJNA848802 | ENA

Diabetes induces macrophage dysfunction through cytoplasmic dsDNA/AIM2 associated pyroptosis

Project description:Diabetes induces macrophage dysfunction through cytoplasmic dsDNA/AIM2 associated pyroptosis

| PRJNA716974 | ENA

SF3B1 association with chromatin determines splicing outcomes

Project description:Much remains unknown concerning the mechanism by which the splicing machinery pinpoints short exons within intronic sequences and how splicing factors are directed to their pre-mRNA targets. Part of the explanation probably lies in differences in chromatin organization between exons and introns. Proteomic, co-immunoprecipitation, and sedimentation analyses described here indicated that SF3B1, an essential splicing component of the U2 snRNP complex, is strongly associated with nucleosomes. ChIP-seq and RNA-seq analyses revealed that SF3B1 is specifically bound to nucleosomes located at exonic positions. SF3B1 binding is enriched at nucleosomes positioned over short exons flanked by long introns that are also characterized by differential GC content between exons and introns. Disruption of SF3B1 binding to such nucleosomes affected the splicing of these exons similarly to inhibition of SF3B1 expression. Our findings suggest that the association of SF3B1 with nucleosomes is functionally important for splice site recognition and that SF3B1 conveys splicing-relevant information embedded in chromatin structure. MNase-seq on Input and SF3B1 pull-down, mRNA-seq on control and SF3B1 si-RNA treated cells as well as on TSA (Trichostatin A) treated and untreated cells.

2015-04-22 | E-GEOD-65644 | biostudies-arrayexpress

Lip-1 induces cell cycle arrest, apoptosis, and pyroptosis in K562 cells

Project description:summary (1)Objective: To investigate the antileukemic role of Lip-1 in K562 leukemia cells. (2)Methods: We performed CCK-8, flow cytometry, microscopy, western blotting assay, next generation sequencing, PCR assays to evaluate the effect of Lip-1 in K562 leukemia cells. (3)Results: Lip-1 inhibited K562 cell proliferation in a dose- and time-dependent manner. RNA sequencing revealed several pathways that were affected by Lip-1, such as the G1/S transition of the mitotic cell cycle and extrinsic or intrinsic apoptotic signaling pathways. The results of flow cytometry indicated that Lip-1 arrests the cell cycle. K562 cells were characterized by swelling and plasma membrane rupture. The expression of the hallmark of pyroptosis, the cleaved N-terminal GSDME, increased. Endoplasmic reticulum stress and autophagy were involved in Lip-1-induced cell death. (4)Conclusion：Lip-1 induces cell cycle arrest, apoptosis, and secondary pyroptosis in K562 leukemia cells, which provides new hope for the treatment of leukemia.

2022-05-31 | GSE205036 | GEO

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