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Perisic L, Aldi S, Sun Y, Folkersen L, Razuvaev A, Roy J, Lengquist M, Åkesson S, Wheelock CE, Maegdefessel L, Gabrielsen A, Odeberg J, Hansson GK, Paulsson-Berne G, Hedin U. Gene expression signatures, pathways and networks in carotid atherosclerosis. J Intern Med 2016; 279:293-308. [PMID: 26620734 DOI: 10.1111/joim.12448] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Embolism from unstable atheromas in the carotid bifurcation is a major cause of stroke. Here, we analysed gene expression in endarterectomies from patients with symptomatic (S) and asymptomatic (AS) carotid stenosis to identify pathways linked to plaque instability. METHODS Microarrays were prepared from plaques (n = 127) and peripheral blood samples (n = 96) of S and AS patients. Gene set enrichment, pathway mapping and network analyses of differentially expressed genes were performed. RESULTS These studies revealed upregulation of haemoglobin metabolism (P = 2.20E-05) and bone resorption (P = 9.63E-04) in S patients. Analysis of subgroups of patients indicated enrichment of calcification and osteoblast differentiation in S patients on statins, as well as inflammation and apoptosis in plaques removed >1 month compared to <2 weeks after symptom. By prediction profiling, a panel of 30 genes, mostly transcription factors, discriminated between plaques from S versus AS patients with 78% accuracy. By meta-analysis, common gene networks associated with atherosclerosis mapped to hypoxia, chemokines, calcification, actin cytoskeleton and extracellular matrix. A set of dysregulated genes (LMOD1, SYNPO2, PLIN2 and PPBP) previously not described in atherosclerosis were identified from microarrays and validated by quantitative PCR and immunohistochemistry. CONCLUSIONS Our findings confirmed a central role for inflammation and proteases in plaque instability, and highlighted haemoglobin metabolism and bone resorption as important pathways. Subgroup analysis suggested prolonged inflammation following the symptoms of plaque instability and calcification as a possible stabilizing mechanism by statins. In addition, transcriptional regulation may play an important role in the determination of plaque phenotype. The results from this study will serve as a basis for further exploration of molecular signatures in carotid atherosclerosis.
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Affiliation(s)
- L Perisic
- Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
| | - S Aldi
- Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
| | - Y Sun
- Translational Science Center, Personalized Healthcare and Biomarkers, R&D, Astra Zeneca, Stockholm, Sweden
| | - L Folkersen
- Department of Molecular Genetics, Novo Nordisk, Copenhagen, Denmark.,Department of Medicine, Karolinska Institute, Stockholm, Sweden
| | - A Razuvaev
- Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
| | - J Roy
- Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
| | - M Lengquist
- Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
| | - S Åkesson
- Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
| | - C E Wheelock
- Division of Physiological Chemistry 2, Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden
| | - L Maegdefessel
- Department of Medicine, Karolinska Institute, Stockholm, Sweden
| | - A Gabrielsen
- Department of Medicine, Karolinska Institute, Stockholm, Sweden
| | - J Odeberg
- Department of Medicine, Karolinska Institute, Stockholm, Sweden.,Science for Life Laboratory, Department of Proteomics, School of Biotechnology, Royal Institute of Technology, Stockholm, Sweden
| | - G K Hansson
- Department of Medicine, Karolinska Institute, Stockholm, Sweden
| | | | - U Hedin
- Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
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Nurnberg ST, Cheng K, Raiesdana A, Kundu R, Miller CL, Kim JB, Arora K, Carcamo-Oribe I, Xiong Y, Tellakula N, Nanda V, Murthy N, Boisvert WA, Hedin U, Perisic L, Aldi S, Maegdefessel L, Pjanic M, Owens GK, Tallquist MD, Quertermous T. Coronary Artery Disease Associated Transcription Factor TCF21 Regulates Smooth Muscle Precursor Cells that Contribute to the Fibrous Cap. Genom Data 2015; 5:36-37. [PMID: 26090325 PMCID: PMC4467834 DOI: 10.1016/j.gdata.2015.05.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
TCF21 is a basic helix-loop-helix transcription factor that has recently been implicated as contributing to susceptibility to coronary heart disease based on genome wide association studies. In order to identify transcriptionally regulated target genes in a major disease relevant cell type, we performed siRNA knockdown of TCF21 in in vitro cultured human coronary artery smooth muscle cells and compared the transcriptome of siTCF21 versus siCONTROL treated cells. The raw (FASTQ) as well as processed (BED) data from 3 technical replicates per treatment has been deposited with Gene Expression Omnibus (GSE44461).
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Affiliation(s)
- S T Nurnberg
- Department of Medicine, Cardiovascular Research Institute, Stanford University School of Medicine, Stanford CA 94305
| | - K Cheng
- Department of Medicine, Cardiovascular Research Institute, Stanford University School of Medicine, Stanford CA 94305
| | - A Raiesdana
- Department of Medicine, Cardiovascular Research Institute, Stanford University School of Medicine, Stanford CA 94305
| | - R Kundu
- Department of Medicine, Cardiovascular Research Institute, Stanford University School of Medicine, Stanford CA 94305
| | - C L Miller
- Department of Medicine, Cardiovascular Research Institute, Stanford University School of Medicine, Stanford CA 94305
| | - J B Kim
- Department of Medicine, Cardiovascular Research Institute, Stanford University School of Medicine, Stanford CA 94305
| | - K Arora
- Center for Cardiovascular Research, University of Hawaii, Honolulu, Hawaii 96813
| | - I Carcamo-Oribe
- Department of Medicine, Cardiovascular Research Institute, Stanford University School of Medicine, Stanford CA 94305
| | - Y Xiong
- Department of Medicine, Cardiovascular Research Institute, Stanford University School of Medicine, Stanford CA 94305
| | - N Tellakula
- Department of Medicine, Cardiovascular Research Institute, Stanford University School of Medicine, Stanford CA 94305
| | - V Nanda
- Department of Medicine, Cardiovascular Research Institute, Stanford University School of Medicine, Stanford CA 94305
| | - N Murthy
- Department of Medicine, Cardiovascular Research Institute, Stanford University School of Medicine, Stanford CA 94305
| | - W A Boisvert
- Center for Cardiovascular Research, University of Hawaii, Honolulu, Hawaii 96813
| | - U Hedin
- Departments of Molecular Medicine and Surgery and Medicine, Karolinska Institute, 17176 Stockholm, Sweden
| | - L Perisic
- Departments of Molecular Medicine and Surgery and Medicine, Karolinska Institute, 17176 Stockholm, Sweden
| | - S Aldi
- Departments of Molecular Medicine and Surgery and Medicine, Karolinska Institute, 17176 Stockholm, Sweden
| | - L Maegdefessel
- Departments of Molecular Medicine and Surgery and Medicine, Karolinska Institute, 17176 Stockholm, Sweden
| | - M Pjanic
- Department of Medicine, Cardiovascular Research Institute, Stanford University School of Medicine, Stanford CA 94305
| | - G K Owens
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia 22908
| | - M D Tallquist
- Center for Cardiovascular Research, University of Hawaii, Honolulu, Hawaii 96813
| | - T Quertermous
- Department of Medicine, Cardiovascular Research Institute, Stanford University School of Medicine, Stanford CA 94305
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Galzio R, Rosati F, Benedetti E, Cristiano L, Aldi S, Mei S, D'Angelo B, Gentile R, Laurenti G, Cifone MG, Giordano A, Cimini A. Glycosilated nucleolin as marker for human gliomas. J Cell Biochem 2012; 113:571-9. [PMID: 21938743 DOI: 10.1002/jcb.23381] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Nucleolin is a multifunctional DNA and RNA binding protein involved in regulation of gene transcription, chromatin remodeling, RNA metabolism, and ribosomal RNA synthesis. Nucleolin seems to be over-expressed in highly proliferative cells and is involved in many aspect of gene expression: DNA recombination and replication, RNA transcription by RNA polymerase I and II, rRNA processing, mRNA stabilization, cytokinesis, and apoptosis. Although nucleolin is localized predominantly in the nucleolus, it has also been shown to be localized in a phosphorylated/glycolsilated form on the cell surface of different cells. Numerous articles dealing with surface nucleolin targeting for tumor therapy have been recently published. However, at present, no extensive informations are so far available for the presence of nucleolin in human gliomas. In the present work we investigated on the presence and localization of nucleolin in glioma on glioma specimens at different grade of malignancy and on primary glioma cell cultures derived by surgical resection, trying to correlate the presence of glycosilated membrane nucleolin with the malignancy grade. To this purpose an antibody produced by us against gp273 protein, demonstrated to recognized the glycosilated surface nucleolin, has been used. The results obtained demonstrate that surface nucleolin increase with the malignancy grade thus suggesting that it may constitute a histopathological marker for glioma grading and a possible tool for targeted therapy.
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Affiliation(s)
- R Galzio
- Department of Health Sciences, University of L'Aquila, L'Aquila, Italy
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Ermini L, Spagnoletti A, Bechi N, Aldi S, Bhattacharjee J, Buffi C, Paulesu L, Rosati F, Ietta F. Effect of the oxygen tension on the expression and function of Galβ1-3GalNAc disaccharide in the first trimester trophoblast cells. Placenta 2011. [DOI: 10.1016/j.placenta.2011.07.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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