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Piñero-Pérez R, López-Cabrera A, Álvarez-Córdoba M, Cilleros-Holgado P, Talaverón-Rey M, Suárez-Carrillo A, Munuera-Cabeza M, Gómez-Fernández D, Reche-López D, Romero-González A, Romero-Domínguez JM, de Pablos RM, Sánchez-Alcázar JA. Actin Polymerization Defects Induce Mitochondrial Dysfunction in Cellular Models of Nemaline Myopathies. Antioxidants (Basel) 2023; 12:2023. [PMID: 38136143 PMCID: PMC10740811 DOI: 10.3390/antiox12122023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 11/18/2023] [Accepted: 11/19/2023] [Indexed: 12/24/2023] Open
Abstract
Nemaline myopathy (NM) is one of the most common forms of congenital myopathy and it is identified by the presence of "nemaline bodies" (rods) in muscle fibers by histopathological examination. The most common forms of NM are caused by mutations in the Actin Alpha 1 (ACTA1) and Nebulin (NEB) genes. Clinical features include hypotonia and muscle weakness. Unfortunately, there is no curative treatment and the pathogenetic mechanisms remain unclear. In this manuscript, we examined the pathophysiological alterations in NM using dermal fibroblasts derived from patients with mutations in ACTA1 and NEB genes. Patients' fibroblasts were stained with rhodamine-phalloidin to analyze the polymerization of actin filaments by fluorescence microscopy. We found that patients' fibroblasts showed incorrect actin filament polymerization compared to control fibroblasts. Actin filament polymerization defects were associated with mitochondrial dysfunction. Furthermore, we identified two mitochondrial-boosting compounds, linoleic acid (LA) and L-carnitine (LCAR), that improved the formation of actin filaments in mutant fibroblasts and corrected mitochondrial bioenergetics. Our results indicate that cellular models can be useful to study the pathophysiological mechanisms involved in NM and to find new potential therapies. Furthermore, targeting mitochondrial dysfunction with LA and LCAR can revert the pathological alterations in NM cellular models.
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Affiliation(s)
- Rocío Piñero-Pérez
- Departamento de Fisiología, Anatomía y Biología Celular, Centro Andaluz de Biología del Desarrollo (CABD-CSIC-Universidad Pablo de Olavide), 41013 Sevilla, Spain; (R.P.-P.); (A.L.-C.); (M.Á.-C.); (P.C.-H.); (M.T.-R.); (A.S.-C.); (M.M.-C.); (D.G.-F.); (D.R.-L.); (A.R.-G.); (J.M.R.-D.)
| | - Alejandra López-Cabrera
- Departamento de Fisiología, Anatomía y Biología Celular, Centro Andaluz de Biología del Desarrollo (CABD-CSIC-Universidad Pablo de Olavide), 41013 Sevilla, Spain; (R.P.-P.); (A.L.-C.); (M.Á.-C.); (P.C.-H.); (M.T.-R.); (A.S.-C.); (M.M.-C.); (D.G.-F.); (D.R.-L.); (A.R.-G.); (J.M.R.-D.)
| | - Mónica Álvarez-Córdoba
- Departamento de Fisiología, Anatomía y Biología Celular, Centro Andaluz de Biología del Desarrollo (CABD-CSIC-Universidad Pablo de Olavide), 41013 Sevilla, Spain; (R.P.-P.); (A.L.-C.); (M.Á.-C.); (P.C.-H.); (M.T.-R.); (A.S.-C.); (M.M.-C.); (D.G.-F.); (D.R.-L.); (A.R.-G.); (J.M.R.-D.)
| | - Paula Cilleros-Holgado
- Departamento de Fisiología, Anatomía y Biología Celular, Centro Andaluz de Biología del Desarrollo (CABD-CSIC-Universidad Pablo de Olavide), 41013 Sevilla, Spain; (R.P.-P.); (A.L.-C.); (M.Á.-C.); (P.C.-H.); (M.T.-R.); (A.S.-C.); (M.M.-C.); (D.G.-F.); (D.R.-L.); (A.R.-G.); (J.M.R.-D.)
| | - Marta Talaverón-Rey
- Departamento de Fisiología, Anatomía y Biología Celular, Centro Andaluz de Biología del Desarrollo (CABD-CSIC-Universidad Pablo de Olavide), 41013 Sevilla, Spain; (R.P.-P.); (A.L.-C.); (M.Á.-C.); (P.C.-H.); (M.T.-R.); (A.S.-C.); (M.M.-C.); (D.G.-F.); (D.R.-L.); (A.R.-G.); (J.M.R.-D.)
| | - Alejandra Suárez-Carrillo
- Departamento de Fisiología, Anatomía y Biología Celular, Centro Andaluz de Biología del Desarrollo (CABD-CSIC-Universidad Pablo de Olavide), 41013 Sevilla, Spain; (R.P.-P.); (A.L.-C.); (M.Á.-C.); (P.C.-H.); (M.T.-R.); (A.S.-C.); (M.M.-C.); (D.G.-F.); (D.R.-L.); (A.R.-G.); (J.M.R.-D.)
| | - Manuel Munuera-Cabeza
- Departamento de Fisiología, Anatomía y Biología Celular, Centro Andaluz de Biología del Desarrollo (CABD-CSIC-Universidad Pablo de Olavide), 41013 Sevilla, Spain; (R.P.-P.); (A.L.-C.); (M.Á.-C.); (P.C.-H.); (M.T.-R.); (A.S.-C.); (M.M.-C.); (D.G.-F.); (D.R.-L.); (A.R.-G.); (J.M.R.-D.)
| | - David Gómez-Fernández
- Departamento de Fisiología, Anatomía y Biología Celular, Centro Andaluz de Biología del Desarrollo (CABD-CSIC-Universidad Pablo de Olavide), 41013 Sevilla, Spain; (R.P.-P.); (A.L.-C.); (M.Á.-C.); (P.C.-H.); (M.T.-R.); (A.S.-C.); (M.M.-C.); (D.G.-F.); (D.R.-L.); (A.R.-G.); (J.M.R.-D.)
| | - Diana Reche-López
- Departamento de Fisiología, Anatomía y Biología Celular, Centro Andaluz de Biología del Desarrollo (CABD-CSIC-Universidad Pablo de Olavide), 41013 Sevilla, Spain; (R.P.-P.); (A.L.-C.); (M.Á.-C.); (P.C.-H.); (M.T.-R.); (A.S.-C.); (M.M.-C.); (D.G.-F.); (D.R.-L.); (A.R.-G.); (J.M.R.-D.)
| | - Ana Romero-González
- Departamento de Fisiología, Anatomía y Biología Celular, Centro Andaluz de Biología del Desarrollo (CABD-CSIC-Universidad Pablo de Olavide), 41013 Sevilla, Spain; (R.P.-P.); (A.L.-C.); (M.Á.-C.); (P.C.-H.); (M.T.-R.); (A.S.-C.); (M.M.-C.); (D.G.-F.); (D.R.-L.); (A.R.-G.); (J.M.R.-D.)
| | - José Manuel Romero-Domínguez
- Departamento de Fisiología, Anatomía y Biología Celular, Centro Andaluz de Biología del Desarrollo (CABD-CSIC-Universidad Pablo de Olavide), 41013 Sevilla, Spain; (R.P.-P.); (A.L.-C.); (M.Á.-C.); (P.C.-H.); (M.T.-R.); (A.S.-C.); (M.M.-C.); (D.G.-F.); (D.R.-L.); (A.R.-G.); (J.M.R.-D.)
| | - Rocío M. de Pablos
- Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad de Sevilla, 41012 Sevilla, Spain;
- Instituto of Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío (HUVR)/CSIC/Universidad de Sevilla, 41012 Sevilla, Spain
| | - José A. Sánchez-Alcázar
- Departamento de Fisiología, Anatomía y Biología Celular, Centro Andaluz de Biología del Desarrollo (CABD-CSIC-Universidad Pablo de Olavide), 41013 Sevilla, Spain; (R.P.-P.); (A.L.-C.); (M.Á.-C.); (P.C.-H.); (M.T.-R.); (A.S.-C.); (M.M.-C.); (D.G.-F.); (D.R.-L.); (A.R.-G.); (J.M.R.-D.)
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Davis G, Hameister B, Dunnum C, Vanderpas E, Carter B. Incorporating Primer Amplification Efficiencies in Quantitative Reverse Transcription Polymerase Chain Reaction Experiments; Considerations for Differential Gene Expression Analyses in Zebrafish. Zebrafish 2023; 20:189-199. [PMID: 37722027 DOI: 10.1089/zeb.2023.0008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/20/2023] Open
Abstract
Quantitative reverse transcription polymerase chain reaction (RT-qPCR) is commonly used to measure the mRNA expression of target genes in zebrafish. Gene expression values from RT-qPCR are typically reported as relative fold-changes, and relative quantification of RT-qPCR data incorporates primer amplification efficiency values for each target gene. We describe the influence of the primer amplification efficiency analysis method on RT-qPCR gene expression fold-change calculations. This report describes (1) a sample analysis demonstrating incorporation of primer amplification efficiency into RT-qPCR analysis for comparing gene expression of a gene of interest between two groups when normalized to multiple reference genes, (2) the influence of differences in primer amplification efficiencies between measured genes on gene expression differences calculated from theoretical delta-Cq (dCq) values, and (3) an empirical comparison of the influence of three methods of defining primer amplification efficiency in gene expression analyses (delta-delta-Cq [ddCq], standard curve, LinRegPCR) using mRNA measurements of a set of genes in zebrafish embryonic development. Given the need to account for the influence of primer amplification efficiency along with the simplicity of using software programs (LinRegPCR) to measure primer amplification efficiency from RT-qPCR data, we encourage using empirical measurements of primer amplification efficiency for RT-qPCR analysis of differential gene expression in zebrafish.
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Affiliation(s)
- Gillian Davis
- Department of Biology, University of Wisconsin Eau Claire, Eau Claire, Wisconsin, USA
| | - Brianna Hameister
- Department of Biology, University of Wisconsin Eau Claire, Eau Claire, Wisconsin, USA
| | - Cora Dunnum
- Department of Biology, University of Wisconsin Eau Claire, Eau Claire, Wisconsin, USA
| | - Emily Vanderpas
- Department of Biology, University of Wisconsin Eau Claire, Eau Claire, Wisconsin, USA
| | - Brad Carter
- Department of Biology, University of Wisconsin Eau Claire, Eau Claire, Wisconsin, USA
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