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Fochi S, Orlandi E, Ceccuzzi L, Rodolfo M, Vergani E, Turco A, Romanelli MG, Gomez-Lira M. Identification of suitable mRNAs and microRNAs as reference genes for expression analyses in skin cells under sex hormone exposure. Gene 2020; 769:145336. [PMID: 33301797 DOI: 10.1016/j.gene.2020.145336] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 10/02/2020] [Accepted: 11/27/2020] [Indexed: 12/27/2022]
Abstract
Quantitative RT-PCR is the most accurate technique for the study of gene expression profiles, however, to ensure the accuracy of qPCR results, suitable reference genes are necessary for data normalization. Hormones influence the development and function of skin cells, regulating the expression of genes and miRNAs. Nevertheless, the stability of reference genes after sex hormone treatment has not been thoroughly investigated. In this study, we evaluated the expression of a set of candidate mRNAs and microRNsA (miRNA) as reference genes in keratinocytes (HaCaT cells), primary human fibroblasts and a melanoma cell line (LM-36 cells) under testosterone or 17β-estradiol treatment. Two algorithms, namely geNorm, Best-Keeper, and the comparative ΔCt method were used to evaluate the expression stability of the candidate reference genes. The comprehensive ranking showed that TBP and miR-191-5p are the most stable expressed genes across all cultured cells under hormone treatment. Furthermore, we observed that GAPDH, HPRT1 and U6 snRNA expression may be altered by hormone exposure, thus, these genes are not recommended as reference genes. In conclusion, the present study provides, to the best of our knowledge, the first evaluation of expressed mRNA(s) and miRNA(s) as reference genes in three different types of skin cells under the stimulation of sex hormones.
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Affiliation(s)
- S Fochi
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Biology and Genetics, University of Verona, Italy.
| | - E Orlandi
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Biology and Genetics, University of Verona, Italy.
| | - L Ceccuzzi
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Biology and Genetics, University of Verona, Italy.
| | - M Rodolfo
- Melanoma and Sarcoma Surgery Unit and Unit of Immunotherapy, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy.
| | - E Vergani
- Melanoma and Sarcoma Surgery Unit and Unit of Immunotherapy, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy.
| | - A Turco
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Biology and Genetics, University of Verona, Italy.
| | - M G Romanelli
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Biology and Genetics, University of Verona, Italy.
| | - M Gomez-Lira
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Biology and Genetics, University of Verona, Italy.
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Lorenzi P, Sangalli A, Fochi S, Dal Molin A, Malerba G, Zipeto D, Romanelli MG. RNA-binding proteins RBM20 and PTBP1 regulate the alternative splicing of FHOD3. Int J Biochem Cell Biol 2018; 106:74-83. [PMID: 30468920 DOI: 10.1016/j.biocel.2018.11.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 10/29/2018] [Accepted: 11/19/2018] [Indexed: 12/12/2022]
Abstract
Regulation of alternative splicing events is an essential step required for the expression of functional cytoskeleton and sarcomere proteins in cardiomyocytes. About 3% of idiopathic dilated cardiomyopathy cases present mutations in the RNA binding protein RBM20, a tissue specific regulator of alternative splicing. Transcripts expressed preferentially in skeletal and cardiac muscle, including TTN, CAMK2D, LDB3, LMO7, PDLIM3, RTN4, and RYR2, are RBM20-dependent splice variants. In the present study, we investigated the RBM20 involvement in post-transcriptional regulation of splicing variants expressed by Formin homology 2 domain containing 3 (FHOD3) gene. FHOD3 is a sarcomeric protein highly expressed in the cardiac tissue and required for the assembly of the contractile apparatus. Recently, FHOD3 mutations have been found associated with heart diseases. We identified novel FHOD3 splicing variants differentially expressed in human tissues and provided evidences that FHOD3 transcripts are specific RBM20 and PTBP1 targets. Furthermore, we demonstrated that the expression of RBM20 and PTBP1 promoted the alternative shift, from inclusion to exclusion, of selected FHOD3 exons. These results indicate that RBM20 and PTBP1 play a role in the actin filament functional organization mediated by FHOD3 isoforms and suggest their possible involvement in heart diseases.
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Affiliation(s)
- P Lorenzi
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Biology and Genetics, University of Verona, Italy.
| | - A Sangalli
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Biology and Genetics, University of Verona, Italy.
| | - S Fochi
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Biology and Genetics, University of Verona, Italy.
| | - A Dal Molin
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Biology and Genetics, University of Verona, Italy.
| | - G Malerba
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Biology and Genetics, University of Verona, Italy.
| | - D Zipeto
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Biology and Genetics, University of Verona, Italy.
| | - M G Romanelli
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Biology and Genetics, University of Verona, Italy.
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Ferronato S, Scuro A, Fochi S, Orlandi E, Gomez-Lira M, Olivato S, Mazzucco S, Turco A, Romanelli MG. Expression of TLR4-PTGE2 signaling genes in atherosclerotic carotid plaques and peripheral blood. Mol Biol Rep 2018; 46:1317-1321. [PMID: 30421129 DOI: 10.1007/s11033-018-4478-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 11/07/2018] [Indexed: 01/01/2023]
Abstract
Toll-like receptor 4 (TLR4)/prostaglandine synthetase 2 (PTGS2) signaling plays a relevant role in atherosclerotic plaque vulnerability. The purpose of this study was to check the gene expression of 6 genes participating to TLR4/PTGS2 signaling (TLR4, PTGS2, ACSL4, PTGER3, PTGER4, and EPRAP) in carotid plaques and blood samples from the same individual and to evaluate these genes as biomarker of plaque progression. We investigated differential gene expression by qRT-PCR in 62 atherosclerotic patients' carotid plaques and corresponding blood sample. A very weak or no correlation was observed in the overall population or analyzing asymptomatic patients. These analyzed genes are most likely not suitable for inclusion in the clinical routine as biomarkers of plaque instability.
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Affiliation(s)
- S Ferronato
- Section of Biology and Genetics, Department of Neurosciences, Biomedicine, and Movement Sciences, University of Verona, Strada Le Grazie, 8, 37134, Verona, Italy
| | - A Scuro
- Department of Surgery, Dentistry, Pediatrics and Gynaecology, Unit of Vascular and Endovascular Surgery, University of Verona, Verona, Italy
| | - S Fochi
- Section of Biology and Genetics, Department of Neurosciences, Biomedicine, and Movement Sciences, University of Verona, Strada Le Grazie, 8, 37134, Verona, Italy
| | - E Orlandi
- Section of Biology and Genetics, Department of Neurosciences, Biomedicine, and Movement Sciences, University of Verona, Strada Le Grazie, 8, 37134, Verona, Italy
| | - M Gomez-Lira
- Section of Biology and Genetics, Department of Neurosciences, Biomedicine, and Movement Sciences, University of Verona, Strada Le Grazie, 8, 37134, Verona, Italy.
| | - S Olivato
- Section of Neurophatology, Department of Neurosciences, Biomedicine, and Movement Sciences, University of Verona, Verona, Italy
| | - S Mazzucco
- Department of Clinical Neurosciences, Centre for Prevention of Stroke and Dementia Nuffield, University of Oxford, Oxford, UK
| | - A Turco
- Section of Biology and Genetics, Department of Neurosciences, Biomedicine, and Movement Sciences, University of Verona, Strada Le Grazie, 8, 37134, Verona, Italy
| | - M G Romanelli
- Section of Biology and Genetics, Department of Neurosciences, Biomedicine, and Movement Sciences, University of Verona, Strada Le Grazie, 8, 37134, Verona, Italy
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