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Cartland SP, Lin RCY, Genner S, Patil MS, Martínez GJ, Barraclough JY, Gloss B, Misra A, Patel S, Kavurma MM. Vascular transcriptome landscape of Trail -/- mice: Implications and therapeutic strategies for diabetic vascular disease. FASEB J 2020; 34:9547-9562. [PMID: 32501591 DOI: 10.1096/fj.201902785r] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 04/30/2020] [Accepted: 05/08/2020] [Indexed: 12/20/2022]
Abstract
Circulating plasma TRAIL levels are suppressed in patients with cardiovascular and diabetic diseases. To identify novel targets in vascular metabolic diseases, genome-wide transcriptome of aortic tissue from Trail-/- versus Trail+/+ mice were interrogated. We found 861 genes differentially expressed with TRAIL deletion. Gene enrichment analyses showed many of these genes were related to inflammation, cell-to-cell cytoskeletal interactions, and transcriptional modulation. We identified vascular protective and pathological gene clusters, with Ifi205 as the most significantly reduced vascular protective gene, whereas Glut1, the most significantly increased pathological gene with TRAIL deletion. We hypothesized that therapeutic targets could be devised from such integrated analysis and validated our findings from vascular tissues of diabetic mice. From the differentially expressed gene targets, enriched transcription factor (TF) and microRNA binding motifs were identified. The top two TFs were Elk1 and Sp1, with enrichment to eight gene targets common to both. miR-520d-3p and miR-377-3p were the top enriched microRNAs with TRAIL deletion; with four overlapping genes enriched for both microRNAs. Our findings offer an alternate in silico approach for therapeutic target identification and present a deeper understanding of gene signatures and pathways altered with TRAIL suppression in the vasculature.
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Affiliation(s)
- Siân P Cartland
- Heart Research Institute, Sydney, NSW, Australia.,Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Ruby C Y Lin
- Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia.,School of Medical Sciences, University of New South Wales, Sydney, NSW, Australia.,Westmead Institute for Medical Research, Sydney, NSW, Australia
| | - Scott Genner
- Heart Research Institute, Sydney, NSW, Australia
| | - Manisha S Patil
- Heart Research Institute, Sydney, NSW, Australia.,Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Gonzalo J Martínez
- Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia.,Westmead Institute for Medical Research, Sydney, NSW, Australia.,División de Enfermedades Cardiovasculares, Pontificia Universidad Católica de Chile, Santiago, Chile.,Millennium Nucleus for Cardiovascular Magnetic Resonance, Santiago, Chile
| | - Jennifer Y Barraclough
- Heart Research Institute, Sydney, NSW, Australia.,Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia.,Department of Cardiology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - Brian Gloss
- Westmead Institute for Medical Research, Sydney, NSW, Australia
| | - Ashish Misra
- Heart Research Institute, Sydney, NSW, Australia.,Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Sanjay Patel
- Heart Research Institute, Sydney, NSW, Australia.,Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia.,Department of Cardiology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - Mary M Kavurma
- Heart Research Institute, Sydney, NSW, Australia.,Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
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The interferon-inducible protein p202 promotes osteogenesis in mouse bone marrow stromal cells. Biosci Rep 2018; 38:BSR20171618. [PMID: 29853536 PMCID: PMC6019357 DOI: 10.1042/bsr20171618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 05/29/2018] [Accepted: 05/31/2018] [Indexed: 11/25/2022] Open
Abstract
In the present study, we explored the role of the interferon-inducible protein p202 in osteoblast differentiation of mouse bone marrow stromal cells (BMSCs). Both the mRNA and protein levels of p202 increased initially and decreased afterward in the course of BMSC osteogenesis. The intracellular distribution of this protein also changed in the differentiation process. p202 knockdown inhibited, while p202 overexpression enhanced, the osteoblast differentiation of BMSCs. This was identified by evaluation of expression of osteogenic markers, Alizarin Red S staining, and determination of alkaline phosphatase activity. Further study revealed that p202 disturbs the formation of Runx2/Ids complex and frees Runx2 to induce the differentiation process. The findings demonstrated that p202 plays a positive role in BMSC osteogenesis.
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Ghosh S, Wallerath C, Covarrubias S, Hornung V, Carpenter S, Fitzgerald KA. The PYHIN Protein p205 Regulates the Inflammasome by Controlling Asc Expression. THE JOURNAL OF IMMUNOLOGY 2017; 199:3249-3260. [PMID: 28931603 DOI: 10.4049/jimmunol.1700823] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 08/22/2017] [Indexed: 11/19/2022]
Abstract
Members of the IFN-inducible PYHIN protein family, such as absent in melanoma-2 and IFN-γ-inducible protein (IFI)16, bind dsDNA and form caspase-1-activating inflammasomes that are important in immunity to cytosolic bacteria, DNA viruses, or HIV. IFI16 has also been shown to regulate transcription of type I IFNs during HSV infection. The role of other members of the PYHIN protein family in the regulation of immune responses is much less clear. In this study, we identified an immune-regulatory function for a member of the murine PYHIN protein family, p205 (also called Ifi205). Examination of immune responses induced by dsDNA and other microbial ligands in bone marrow-derived macrophages lacking p205 revealed that inflammasome activation by dsDNA, as well as ligands that engage the NLRP3 inflammasome, was severely compromised in these cells. Further analysis revealed that p205-knockdown cells showed reduced expression of apoptosis-associated speck-like molecule containing CARD domain (Asc) at the protein and RNA levels. p205 knockdown resulted in reduced binding of actively transcribing RNA polymerase II to the endogenous Asc gene, resulting in decreased transcription and processing of Asc pre-mRNA. Deletion of p205 in B16 melanoma cells using CRISPR/Cas9 showed a similar loss of Asc expression. Ectopic expression of p205 induced expression of an Asc promoter-luciferase reporter gene. Together, these findings suggest that p205 controls expression of Asc mRNA to regulate inflammasome responses. These findings expand on our understanding of immune-regulatory roles for the PYHIN protein family.
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Affiliation(s)
- Sreya Ghosh
- Program in Innate Immunity, Department of Medicine, University of Massachusetts Medical School, Worcester, MA 01605
| | - Christina Wallerath
- Gene Center, Ludwig Maximilian University of Munich, Munich 81377, Germany.,Department of Biochemistry, Ludwig Maximilian University of Munich, Munich 81377, Germany; and
| | - Sergio Covarrubias
- Department of Molecular, Cell and Developmental Biology, University of California, Santa Cruz, Santa Cruz, CA 95064
| | - Veit Hornung
- Gene Center, Ludwig Maximilian University of Munich, Munich 81377, Germany.,Department of Biochemistry, Ludwig Maximilian University of Munich, Munich 81377, Germany; and
| | - Susan Carpenter
- Department of Molecular, Cell and Developmental Biology, University of California, Santa Cruz, Santa Cruz, CA 95064
| | - Katherine A Fitzgerald
- Program in Innate Immunity, Department of Medicine, University of Massachusetts Medical School, Worcester, MA 01605;
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