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Parkinson's Disease Skin Fibroblasts Display Signature Alterations in Growth, Redox Homeostasis, Mitochondrial Function, and Autophagy
The discovery of biomarkers for Parkinson's disease (PD) is challenging due to the heterogeneous nature of this disorder, and a poor correlation between the underlying pathology and the clinically expressed phenotype. An ideal biomarker would inform on PD-relevant pathological changes via an ea...
Autores principales: | , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5770791/ https://www.ncbi.nlm.nih.gov/pubmed/29379409 http://dx.doi.org/10.3389/fnins.2017.00737 |
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author | Teves, Joji M. Y. Bhargava, Vedanshi Kirwan, Konner R. Corenblum, Mandi J. Justiniano, Rebecca Wondrak, Georg T. Anandhan, Annadurai Flores, Andrew J. Schipper, David A. Khalpey, Zain Sligh, James E. Curiel-Lewandrowski, Clara Sherman, Scott J. Madhavan, Lalitha |
author_facet | Teves, Joji M. Y. Bhargava, Vedanshi Kirwan, Konner R. Corenblum, Mandi J. Justiniano, Rebecca Wondrak, Georg T. Anandhan, Annadurai Flores, Andrew J. Schipper, David A. Khalpey, Zain Sligh, James E. Curiel-Lewandrowski, Clara Sherman, Scott J. Madhavan, Lalitha |
author_sort | Teves, Joji M. Y. |
collection | PubMed |
description | The discovery of biomarkers for Parkinson's disease (PD) is challenging due to the heterogeneous nature of this disorder, and a poor correlation between the underlying pathology and the clinically expressed phenotype. An ideal biomarker would inform on PD-relevant pathological changes via an easily assayed biological characteristic, which reliably tracks clinical symptoms. Human dermal (skin) fibroblasts are accessible peripheral cells that constitute a patient-specific system, which potentially recapitulates the PD chronological and epigenetic aging history. Here, we compared primary skin fibroblasts obtained from individuals diagnosed with late-onset sporadic PD, and healthy age-matched controls. These fibroblasts were studied from fundamental viewpoints of growth and morphology, as well as redox, mitochondrial, and autophagic function. It was observed that fibroblasts from PD subjects had higher growth rates, and appeared distinctly different in terms of morphology and spatial organization in culture, compared to control cells. It was also found that the PD fibroblasts exhibited significantly compromised mitochondrial structure and function when assessed via morphological and oxidative phosphorylation assays. Additionally, a striking increase in baseline macroautophagy levels was seen in cells from PD subjects. Exposure of the skin fibroblasts to physiologically relevant stress, specifically ultraviolet irradiation (UVA), further exaggerated the autophagic dysfunction in the PD cells. Moreover, the PD fibroblasts accumulated higher levels of reactive oxygen species (ROS) coupled with lower cell viability upon UVA treatment. In essence, these studies highlight primary skin fibroblasts as a patient-relevant model that captures fundamental PD molecular mechanisms, and supports their potential utility to develop diagnostic and prognostic biomarkers for the disease. |
format | Online Article Text |
id | pubmed-5770791 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-57707912018-01-29 Parkinson's Disease Skin Fibroblasts Display Signature Alterations in Growth, Redox Homeostasis, Mitochondrial Function, and Autophagy Teves, Joji M. Y. Bhargava, Vedanshi Kirwan, Konner R. Corenblum, Mandi J. Justiniano, Rebecca Wondrak, Georg T. Anandhan, Annadurai Flores, Andrew J. Schipper, David A. Khalpey, Zain Sligh, James E. Curiel-Lewandrowski, Clara Sherman, Scott J. Madhavan, Lalitha Front Neurosci Neuroscience The discovery of biomarkers for Parkinson's disease (PD) is challenging due to the heterogeneous nature of this disorder, and a poor correlation between the underlying pathology and the clinically expressed phenotype. An ideal biomarker would inform on PD-relevant pathological changes via an easily assayed biological characteristic, which reliably tracks clinical symptoms. Human dermal (skin) fibroblasts are accessible peripheral cells that constitute a patient-specific system, which potentially recapitulates the PD chronological and epigenetic aging history. Here, we compared primary skin fibroblasts obtained from individuals diagnosed with late-onset sporadic PD, and healthy age-matched controls. These fibroblasts were studied from fundamental viewpoints of growth and morphology, as well as redox, mitochondrial, and autophagic function. It was observed that fibroblasts from PD subjects had higher growth rates, and appeared distinctly different in terms of morphology and spatial organization in culture, compared to control cells. It was also found that the PD fibroblasts exhibited significantly compromised mitochondrial structure and function when assessed via morphological and oxidative phosphorylation assays. Additionally, a striking increase in baseline macroautophagy levels was seen in cells from PD subjects. Exposure of the skin fibroblasts to physiologically relevant stress, specifically ultraviolet irradiation (UVA), further exaggerated the autophagic dysfunction in the PD cells. Moreover, the PD fibroblasts accumulated higher levels of reactive oxygen species (ROS) coupled with lower cell viability upon UVA treatment. In essence, these studies highlight primary skin fibroblasts as a patient-relevant model that captures fundamental PD molecular mechanisms, and supports their potential utility to develop diagnostic and prognostic biomarkers for the disease. Frontiers Media S.A. 2018-01-12 /pmc/articles/PMC5770791/ /pubmed/29379409 http://dx.doi.org/10.3389/fnins.2017.00737 Text en Copyright © 2018 Teves, Bhargava, Kirwan, Corenblum, Justiniano, Wondrak, Anandhan, Flores, Schipper, Khalpey, Sligh, Curiel-Lewandrowski, Sherman and Madhavan. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Neuroscience Teves, Joji M. Y. Bhargava, Vedanshi Kirwan, Konner R. Corenblum, Mandi J. Justiniano, Rebecca Wondrak, Georg T. Anandhan, Annadurai Flores, Andrew J. Schipper, David A. Khalpey, Zain Sligh, James E. Curiel-Lewandrowski, Clara Sherman, Scott J. Madhavan, Lalitha Parkinson's Disease Skin Fibroblasts Display Signature Alterations in Growth, Redox Homeostasis, Mitochondrial Function, and Autophagy |
title | Parkinson's Disease Skin Fibroblasts Display Signature Alterations in Growth, Redox Homeostasis, Mitochondrial Function, and Autophagy |
title_full | Parkinson's Disease Skin Fibroblasts Display Signature Alterations in Growth, Redox Homeostasis, Mitochondrial Function, and Autophagy |
title_fullStr | Parkinson's Disease Skin Fibroblasts Display Signature Alterations in Growth, Redox Homeostasis, Mitochondrial Function, and Autophagy |
title_full_unstemmed | Parkinson's Disease Skin Fibroblasts Display Signature Alterations in Growth, Redox Homeostasis, Mitochondrial Function, and Autophagy |
title_short | Parkinson's Disease Skin Fibroblasts Display Signature Alterations in Growth, Redox Homeostasis, Mitochondrial Function, and Autophagy |
title_sort | parkinson's disease skin fibroblasts display signature alterations in growth, redox homeostasis, mitochondrial function, and autophagy |
topic | Neuroscience |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5770791/ https://www.ncbi.nlm.nih.gov/pubmed/29379409 http://dx.doi.org/10.3389/fnins.2017.00737 |
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