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Rey F, Esposito L, Maghraby E, Mauri A, Berardo C, Bonaventura E, Tonduti D, Carelli S, Cereda C. Role of epigenetics and alterations in RNA metabolism in leukodystrophies. WILEY INTERDISCIPLINARY REVIEWS. RNA 2024; 15:e1854. [PMID: 38831585 DOI: 10.1002/wrna.1854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 04/24/2024] [Accepted: 04/25/2024] [Indexed: 06/05/2024]
Abstract
Leukodystrophies are a class of rare heterogeneous disorders which affect the white matter of the brain, ultimately leading to a disruption in brain development and a damaging effect on cognitive, motor and social-communicative development. These disorders present a great clinical heterogeneity, along with a phenotypic overlap and this could be partially due to contributions from environmental stimuli. It is in this context that there is a great need to investigate what other factors may contribute to both disease insurgence and phenotypical heterogeneity, and novel evidence are raising the attention toward the study of epigenetics and transcription mechanisms that can influence the disease phenotype beyond genetics. Modulation in the epigenetics machinery including histone modifications, DNA methylation and non-coding RNAs dysregulation, could be crucial players in the development of these disorders, and moreover an aberrant RNA maturation process has been linked to leukodystrophies. Here, we provide an overview of these mechanisms hoping to supply a closer step toward the analysis of leukodystrophies not only as genetically determined but also with an added level of complexity where epigenetic dysregulation is of key relevance. This article is categorized under: Regulatory RNAs/RNAi/Riboswitches > Regulatory RNA RNA in Disease and Development > RNA in Disease RNA in Disease and Development > RNA in Development.
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Affiliation(s)
- Federica Rey
- Pediatric Clinical Research Center "Romeo ed Enrica Invernizzi," Department of Biomedical and Clinical Sciences, University of Milano, Milan, Italy
- Center of Functional Genomics and Rare Diseases, Department of Pediatrics, Buzzi Children's Hospital, Milan, Italy
| | - Letizia Esposito
- Pediatric Clinical Research Center "Romeo ed Enrica Invernizzi," Department of Biomedical and Clinical Sciences, University of Milano, Milan, Italy
- Center of Functional Genomics and Rare Diseases, Department of Pediatrics, Buzzi Children's Hospital, Milan, Italy
| | - Erika Maghraby
- Center of Functional Genomics and Rare Diseases, Department of Pediatrics, Buzzi Children's Hospital, Milan, Italy
- Department of Biology and Biotechnology "L. Spallanzani" (DBB), University of Pavia, Pavia, Italy
| | - Alessia Mauri
- Pediatric Clinical Research Center "Romeo ed Enrica Invernizzi," Department of Biomedical and Clinical Sciences, University of Milano, Milan, Italy
- Center of Functional Genomics and Rare Diseases, Department of Pediatrics, Buzzi Children's Hospital, Milan, Italy
| | - Clarissa Berardo
- Pediatric Clinical Research Center "Romeo ed Enrica Invernizzi," Department of Biomedical and Clinical Sciences, University of Milano, Milan, Italy
- Center of Functional Genomics and Rare Diseases, Department of Pediatrics, Buzzi Children's Hospital, Milan, Italy
| | - Eleonora Bonaventura
- Unit of Pediatric Neurology, COALA Center for Diagnosis and Treatment of Leukodystrophies, V. Buzzi Children's Hospital, Milan, Italy
- Department of Biomedical and Clinical Sciences, University of Milan, Milan, Italy
| | - Davide Tonduti
- Unit of Pediatric Neurology, COALA Center for Diagnosis and Treatment of Leukodystrophies, V. Buzzi Children's Hospital, Milan, Italy
- Department of Biomedical and Clinical Sciences, University of Milan, Milan, Italy
| | - Stephana Carelli
- Pediatric Clinical Research Center "Romeo ed Enrica Invernizzi," Department of Biomedical and Clinical Sciences, University of Milano, Milan, Italy
- Center of Functional Genomics and Rare Diseases, Department of Pediatrics, Buzzi Children's Hospital, Milan, Italy
| | - Cristina Cereda
- Center of Functional Genomics and Rare Diseases, Department of Pediatrics, Buzzi Children's Hospital, Milan, Italy
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Ishibashi S, Kamei N, Tsuchikawa Y, Nakamae T, Akimoto T, Miyaki S, Adachi N. Myelin-Specific microRNA-23a/b Cluster Deletion Inhibits Myelination in the Central Nervous System during Postnatal Growth and Aging. Genes (Basel) 2024; 15:402. [PMID: 38674338 PMCID: PMC11049049 DOI: 10.3390/genes15040402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 03/21/2024] [Accepted: 03/23/2024] [Indexed: 04/28/2024] Open
Abstract
Microribonucleic acids (miRNAs) comprising miR-23a/b clusters, specifically miR-23a and miR-27a, are recognized for their divergent roles in myelination within the central nervous system. However, cluster-specific miRNA functions remain controversial as miRNAs within the same cluster have been suggested to function complementarily. This study aims to clarify the role of miR-23a/b clusters in myelination using mice with a miR-23a/b cluster deletion (KO mice), specifically in myelin expressing proteolipid protein (PLP). Inducible conditional KO mice were generated by crossing miR-23a/b clusterflox/flox mice with PlpCre-ERT2 mice; the offspring were injected with tamoxifen at 10 days or 10 weeks of age to induce a myelin-specific miR-23a/b cluster deletion. Evaluation was performed at 10 weeks or 12 months of age and compared with control mice that were not treated with tamoxifen. KO mice exhibit impaired motor function and hypoplastic myelin sheaths in the brain and spinal cord at 10 weeks and 12 months of age. Simultaneously, significant decreases in myelin basic protein (MBP) and PLP expression occur in KO mice. The percentages of oligodendrocyte precursors and mature oligodendrocytes are consistent between the KO and control mice. However, the proportion of oligodendrocytes expressing MBP is significantly lower in KO mice. Moreover, changes in protein expression occur in KO mice, with increased leucine zipper-like transcriptional regulator 1 expression, decreased R-RAS expression, and decreased phosphorylation of extracellular signal-regulated kinases. These findings highlight the significant influence of miR-23a/b clusters on myelination during postnatal growth and aging.
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Affiliation(s)
- Shigeki Ishibashi
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8551, Japan; (S.I.); (T.N.); (S.M.); (N.A.)
| | - Naosuke Kamei
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8551, Japan; (S.I.); (T.N.); (S.M.); (N.A.)
| | - Yuji Tsuchikawa
- Orthopedics and Micro-Surgical Spine Center, Hiroshima City North Medical Center Asa Citizens Hospital, Hiroshima 731-0293, Japan;
| | - Toshio Nakamae
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8551, Japan; (S.I.); (T.N.); (S.M.); (N.A.)
| | - Takayuki Akimoto
- Faculty of Sport Sciences, Waseda University, Tokorozawa 359-1192, Japan;
| | - Shigeru Miyaki
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8551, Japan; (S.I.); (T.N.); (S.M.); (N.A.)
- Medical Center for Translational and Clinical Research, Hiroshima University Hospital, Hiroshima 734-8551, Japan
| | - Nobuo Adachi
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8551, Japan; (S.I.); (T.N.); (S.M.); (N.A.)
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3
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Benarroch E. What Is the Role of Nuclear Envelope Proteins in Neurologic Disorders? Neurology 2024; 102:e209202. [PMID: 38330281 DOI: 10.1212/wnl.0000000000209202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 12/12/2023] [Indexed: 02/10/2024] Open
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Ashrafi M, Kameli R, Hosseinpour S, Razmara E, Zamani Z, Rezaei Z, Mashayekhi R, Pak N, Barzegar M, Azizimalamiri R, Kashani MR, Khosroshahi N, Rasulinezhad M, Heidari M, Amanat M, Abdi A, Mohammadi B, Mohammadi M, Zamani GR, Badv RS, Omrani A, Nikbakht S, Bereshneh AH, Movahedinia M, Moghaddam HF, Ardakani HS, Akbari MG, Tousi MB, Shahi MV, Hosseini F, Amouzadeh MH, Hosseini SA, Nikkhah A, Khajeh A, Alizadeh H, Yarali B, Rohani M, Karimi P, Elahi HML, Hosseiny SMM, Sadeghzadeh MS, Mohebbi H, Moghadam MH, Aryan H, Vahidnezhad H, Soveizi M, Rabbani B, Rabbani A, Mahdieh N, Garshasbi M, Tavasoli AR. High genetic heterogeneity of leukodystrophies in Iranian children: the first report of Iranian Leukodystrophy Registry. Neurogenetics 2023; 24:279-289. [PMID: 37597066 DOI: 10.1007/s10048-023-00730-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Accepted: 08/09/2023] [Indexed: 08/21/2023]
Abstract
Leukodystrophies (LDs) are a heterogeneous group of progressive neurological disorders and characterized by primary involvement of white matter of the central nervous system (CNS). This is the first report of the Iranian LD Registry database to describe the clinical, radiological, and genomic data of Persian patients with leukodystrophies. From 2016 to 2019, patients suspicious of LDs were examined followed by a brain magnetic resonance imaging (MRI). A single gene testing or whole-exome sequencing (WES) was used depending on the neuroradiologic phenotypes. In a few cases, the diagnosis was made by metabolic studies. Based on the MRI pattern, diagnosed patients were divided into cohorts A (hypomyelinating LDs) versus cohort B (Other LDs). The most recent LD classification was utilized for classification of diagnosed patients. For novel variants, in silico analyses were performed to verify their pathogenicity. Out of 680 registered patients, 342 completed the diagnostic evaluations. In total, 245 patients met a diagnosis which in turn 24.5% were categorized in cohort A and the remaining in cohort B. Genetic tests revealed causal variants in 228 patients consisting of 213 variants in 110 genes with 78 novel variants. WES and single gene testing identified a causal variant in 65.5% and 34.5% cases, respectively. The total diagnostic rate of WES was 60.7%. Lysosomal disorders (27.3%; GM2-gangliosidosis-9.8%, MLD-6.1%, KD-4.5%), amino and organic acid disorders (17.15%; Canavan disease-4.5%, L-2-HGA-3.6%), mitochondrial leukodystrophies (12.6%), ion and water homeostasis disorders (7.3%; MLC-4.5%), peroxisomal disorders (6.5%; X-ALD-3.6%), and myelin protein disorders (3.6%; PMLD-3.6%) were the most commonly diagnosed disorders. Thirty-seven percent of cases had a pathogenic variant in nine genes (ARSA, HEXA, ASPA, MLC1, GALC, GJC2, ABCD1, L2HGDH, GCDH). This study highlights the most common types as well as the genetic heterogeneity of LDs in Iranian children.
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Affiliation(s)
- Mahmoudreza Ashrafi
- Myelin Disorders Clinic, Pediatric Neurology Division, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, No. 61, Gharib Street, Keshavarz Blvd, Tehran, 1419733151, Iran
| | - Reyhaneh Kameli
- Myelin Disorders Clinic, Pediatric Neurology Division, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, No. 61, Gharib Street, Keshavarz Blvd, Tehran, 1419733151, Iran
| | - Sareh Hosseinpour
- Myelin Disorders Clinic, Pediatric Neurology Division, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, No. 61, Gharib Street, Keshavarz Blvd, Tehran, 1419733151, Iran
| | - Ehsan Razmara
- Australian Regenerative Medicine Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Zahra Zamani
- MD, MPH, Community Medicine Specialist, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Rezaei
- Myelin Disorders Clinic, Pediatric Neurology Division, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, No. 61, Gharib Street, Keshavarz Blvd, Tehran, 1419733151, Iran
| | - Raziyeh Mashayekhi
- Myelin Disorders Clinic, Pediatric Neurology Division, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, No. 61, Gharib Street, Keshavarz Blvd, Tehran, 1419733151, Iran
| | - Neda Pak
- Department of Radiology, Children's Hospital Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Barzegar
- Pediatric Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Azizimalamiri
- Department of Pediatric Neurology, Golestan Medical, Educational, and Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | | | - Nahideh Khosroshahi
- Department of Pediatric Neurology, Bahrami Children Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Rasulinezhad
- Myelin Disorders Clinic, Pediatric Neurology Division, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, No. 61, Gharib Street, Keshavarz Blvd, Tehran, 1419733151, Iran
| | - Morteza Heidari
- Myelin Disorders Clinic, Pediatric Neurology Division, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, No. 61, Gharib Street, Keshavarz Blvd, Tehran, 1419733151, Iran
| | - Man Amanat
- Myelin Disorders Clinic, Pediatric Neurology Division, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, No. 61, Gharib Street, Keshavarz Blvd, Tehran, 1419733151, Iran
| | - Alireza Abdi
- Myelin Disorders Clinic, Pediatric Neurology Division, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, No. 61, Gharib Street, Keshavarz Blvd, Tehran, 1419733151, Iran
| | - Bahram Mohammadi
- Myelin Disorders Clinic, Pediatric Neurology Division, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, No. 61, Gharib Street, Keshavarz Blvd, Tehran, 1419733151, Iran
| | - Mahmoud Mohammadi
- Pediatric Neurology Division, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, Tehran, Iran
| | - Gholam Reza Zamani
- Pediatric Neurology Division, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Shervin Badv
- Pediatric Neurology Division, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, Tehran, Iran
| | - Abdolmajid Omrani
- Division of Clinical Studies, The Persian Gulf Nuclear Medicine Research Center, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Sedigheh Nikbakht
- Myelin Disorders Clinic, Pediatric Neurology Division, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, No. 61, Gharib Street, Keshavarz Blvd, Tehran, 1419733151, Iran
| | - Ali Hosseini Bereshneh
- Prenatal Diagnosis and Genetic Research Center, Dastgheib Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mojtaba Movahedinia
- Department of Pediatric, Growth Disorders of Children Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | | | | | - Masood Ghahvechi Akbari
- Department of Physical Medicine and Rehabilitation, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehran Beiraghi Tousi
- Pediatric Ward, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Vafaee Shahi
- Pediatric Growth and Development Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Firouzeh Hosseini
- Department of Pediatric Neurology, Hamedan University of Medical Sciences, Hamedan, Iran
| | | | - Seyed Ahmad Hosseini
- Department of Pediatric Neurology, Golestan University of Medical Sciences, Gorgan, Iran
| | - Ali Nikkhah
- Department of Pediatric Neurology, Mofid Children Hospital, Shahid Beheshti University of Medical, Tehran, Iran
| | - Ali Khajeh
- Children and Adolescence Research Center, Zahedan University of Medical Sciences, Zahedan, 000000321469345, Iran
| | - Hooman Alizadeh
- Department of Radiology, Children's Hospital Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Bahram Yarali
- Pediatric Neurology Division, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Rohani
- Department of Neurology, Hazrat-E-Rasool Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Parviz Karimi
- Department of Pediatric Neurology, Ilam University of Medical Sciences, Ilam, Iran
| | - Hadi Montazer Lotf Elahi
- Department of Pediatric Neurology, Imam Ali Hospital, Alborz University of Medical Sciences, Karaj, Iran
| | - Seyyed Mohamad Mahdi Hosseiny
- Myelin Disorders Clinic, Pediatric Neurology Division, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, No. 61, Gharib Street, Keshavarz Blvd, Tehran, 1419733151, Iran
| | - Masoumeh Sadat Sadeghzadeh
- Myelin Disorders Clinic, Pediatric Neurology Division, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, No. 61, Gharib Street, Keshavarz Blvd, Tehran, 1419733151, Iran
| | - Hossein Mohebbi
- Department of Pediatric Neurology, AJA University of Medical Sciences, Tehran, Iran
| | - Maryam Hosseini Moghadam
- Cardiogenetic Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Hajar Aryan
- Farhud Medical Genetic Laboratory, Tehran University of Medical Sciences, Tehran, Iran
| | - Hassan Vahidnezhad
- Center for Applied Genomics, Children's Hospital of Philadelphia, Philadelphia, USA
- Department of Pediatrics, The University of Pennsylvania School of Medicine, Philadelphia, USA
| | - Mahdieh Soveizi
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Bahareh Rabbani
- Growth and Development Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Rabbani
- Growth and Development Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Nejat Mahdieh
- Growth and Development Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Masoud Garshasbi
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Jalal-Al Ahmad Hwy, Tehran, Iran.
| | - Ali Reza Tavasoli
- Myelin Disorders Clinic, Pediatric Neurology Division, Children's Medical Center, Pediatrics Center of Excellence, Tehran University of Medical Sciences, No. 61, Gharib Street, Keshavarz Blvd, Tehran, 1419733151, Iran.
- Pediatric Headache Program, Barrow Neurological Institute, Phoenix Children's Hospital, Phoenix, AZ, USA.
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Mustafin RN, Khusnutdinova EK. The relationship of lamins with epigenetic factors during aging. Vavilovskii Zhurnal Genet Selektsii 2022; 26:40-49. [PMID: 35342861 PMCID: PMC8892175 DOI: 10.18699/vjgb-22-06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 05/23/2021] [Accepted: 09/28/2021] [Indexed: 11/26/2022] Open
Abstract
The key factor of genome instability during aging is transposon dysregulation. This may be due to senile changes in the expression of lamins, which epigenetically modulate transposons. Lamins directly physically interact with transposons. Epigenetic regulators such as SIRT7, BAF, and microRNA can also serve as intermediaries for their interactions. There is also an inverse regulation, since transposons are sources of miRNAs that affect lamins. We suggest that lamins can be attributed to epigenetic factors, since they are part of the NURD, interact with histone deacetylases and regulate gene expression without changing the nucleotide sequences. The role of lamins in the etiopathogenesis of premature aging syndromes may be associated with interactions with transposons. In various human cells, LINE1 is present in the heterochromatin domains of the genome associated with lamins, while SIRT7 facilitates the interaction of this retroelement with lamins. Both retroelements and the nuclear lamina play an important role in the antiviral response of organisms. This may be due to the role of lamins in protection from both viruses and transposons, since viruses and transposons are evolutionarily related. Transposable elements and lamins are secondary messengers of environmental stressors that can serve as triggers for aging and carcinogenesis. Transposons play a role in the development of cancer, while the microRNAs derived from them, participating in the etiopathogenesis of tumors, are important in human aging. Lamins have similar properties, since lamins are dysregulated in cancer, and microRNAs affecting them are involved in carcinogenesis. Changes in the expression of specif ic microRNAs were also revealed
in laminopathies. Identif ication of the epigenetic mechanisms of interaction of lamins with transposons during
aging
can become the basis for the development of methods of life extension and targeted therapy of age-associated
cancer
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Affiliation(s)
| | - E. K. Khusnutdinova
- Institute of Biochemistry and Genetics – Subdivision of the Ufa Federal Research Centre of the Russian Academy of Sciences
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Shu Y, Luo T, Wang M, Zhang Y, Zhang L, Xiao Z, Wang Q, Zhang Q, Zou J, Yu C, Xu S, Yu T, Zhou L, Yu S. Gastrodin promotes CNS myelination via a lncRNA Gm7237/miR-142a/MRF pathway. RNA Biol 2021; 18:1279-1290. [PMID: 33151124 PMCID: PMC8354603 DOI: 10.1080/15476286.2020.1841976] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 10/20/2020] [Accepted: 10/21/2020] [Indexed: 12/12/2022] Open
Abstract
Treatment of central nervous system (CNS) demyelination is greatly hindered by lack of the knowledge regarding to underlying molecular mechanisms as well as therapeutic agents. Here, we report a novel small molecule agent, gastrodin (GAS), which can significantly promote CNS myelination in in vivo mice models. By using high-throughput sequencing analysis, we discover a key long non-coding RNA Gm7237 that can enhance CNS myelination and is up-regulated by GAS. Through using bioinformatic analysis and experimental validations, we further unravel that microRNA-142a (miR-142a) and its target myelin gene regulatory factor (MRF) is under the direct regulation by Gm7237. Finally, we demonstrate that Gm7237/miR-142a/MRF axis is the key pathway involved in CNS myelination mediated by GAS. Overall, our results provide not only a novel agent for therapeutic treatment of CNS demyelination but also a molecular basis responsible for GAS-promoted CNS myelination.
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Affiliation(s)
- Yue Shu
- Key Laboratory of Brain Science, Zunyi Medical University, Zunyi, China
- Guizhou Key Laboratory of Anesthesia and Organ Protection, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Tianyuan Luo
- Guizhou Key Laboratory of Anesthesia and Organ Protection, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Department of Anesthesiology, Affiliated Hospital, Zunyi Medical University, Zunyi, China
| | - Mingda Wang
- Key Laboratory of Brain Science, Zunyi Medical University, Zunyi, China
- Department of Cell Biology, Zunyi Medical University, Zunyi, China
| | - Yu Zhang
- Guizhou Key Laboratory of Anesthesia and Organ Protection, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Department of Anesthesiology, Affiliated Hospital, Zunyi Medical University, Zunyi, China
| | - Lin Zhang
- Guizhou Key Laboratory of Anesthesia and Organ Protection, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Department of Anesthesiology, Affiliated Hospital, Zunyi Medical University, Zunyi, China
| | - Zhi Xiao
- Key Laboratory of Brain Science, Zunyi Medical University, Zunyi, China
| | - Qianxing Wang
- Department of Cell Biology, Zunyi Medical University, Zunyi, China
| | - Qiang Zhang
- Key Laboratory of Brain Science, Zunyi Medical University, Zunyi, China
- Department of Cerebrovascular, Affiliated Hospital, Zunyi Medical University, Zunyi, China
| | - Jia Zou
- Key Laboratory of Brain Science, Zunyi Medical University, Zunyi, China
| | - Changyin Yu
- Key Laboratory of Brain Science, Zunyi Medical University, Zunyi, China
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Shangfu Xu
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China
| | - Tian Yu
- Key Laboratory of Brain Science, Zunyi Medical University, Zunyi, China
- Guizhou Key Laboratory of Anesthesia and Organ Protection, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Liang Zhou
- Key Laboratory of Brain Science, Zunyi Medical University, Zunyi, China
| | - Shouyang Yu
- Key Laboratory of Brain Science, Zunyi Medical University, Zunyi, China
- Guizhou Key Laboratory of Anesthesia and Organ Protection, Affiliated Hospital of Zunyi Medical University, Zunyi, China
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7
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Sferra A, Fortugno P, Motta M, Aiello C, Petrini S, Ciolfi A, Cipressa F, Moroni I, Leuzzi V, Pieroni L, Marini F, Boespflug Tanguy O, Eymard-Pierre E, Danti FR, Compagnucci C, Zambruno G, Brusco A, Santorelli FM, Chiapparini L, Francalanci P, Loizzo AL, Tartaglia M, Cestra G, Bertini E. Biallelic mutations in RNF220 cause laminopathies featuring leukodystrophy, ataxia and deafness. Brain 2021; 144:3020-3035. [PMID: 33964137 DOI: 10.1093/brain/awab185] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 04/14/2021] [Accepted: 04/29/2021] [Indexed: 11/13/2022] Open
Abstract
Leukodystrophies are a heterogeneous group of rare inherited disorders that involve preferentially the white matter of the central nervous system (CNS). These conditions are characterized by a primary glial cell and myelin sheath pathology of variable etiology, which causes secondary axonal degeneration, generally emerging with disease progression. Whole exome sequencing performed in 5 large consanguineous nuclear families allowed to identify homozygosity for two recurrent missense variants affecting highly conserved residues of RNF220 as the causative event underlying a novel form of leukodystrophy with ataxia and sensorineural deafness. We report on two homozygous missense variants (p.R363Q and p.R365Q) in the ubiquitin E3 ligase RNF220 as the cause underlying a novel form of leukodystrophy with ataxia and sensorineural deafness having fibrotic cardiomyopathy and hepatopathy as associated features, in seven consanguineous families. Mass spectrometry analysis identified lamin B1 as RNF220 binding protein and co-immunoprecipitation experiments demonstrated reduced binding of both RNF220 mutants to lamin B1. We demonstrate that RNF220 silencing in Drosophila melanogaster specifically affects proper localization of lamin Dm0, the fly lamin B1 orthologue, promotes its aggregation, and causes a neurodegenerative phenotype, strongly supporting the functional link between RNF220 and lamin B1. Finally, we demonstrate that RNF220 plays a crucial role in the maintenance of nuclear morphology: mutations primary skin fibroblasts determine nuclear abnormalities such as blebs, herniations and invaginations, which are typically observed in cells of patients affected by laminopathies. Overall, our data identify RNF220 as a gene implicated in leukodystrophy with ataxia and sensorineural deafness, and document a critical role of RNF220 in the regulation of nuclear lamina. Our findings provide further evidence on the direct link between nuclear lamina dysfunction and neurodegeneration.
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Affiliation(s)
- Antonella Sferra
- Genetics and Rare Diseases Research Division, Bambino Gesù Children's Hospital, IRCCS, 00146 Rome, Italy
| | - Paola Fortugno
- Department of Life, Health and Environmental Sciences University of L'Aquila, 00167 Rome, Italy.,Human Functional Genomics, IRCCS San Raffaele Pisana, 00166 Rome, Italy
| | - Marialetizia Motta
- Genetics and Rare Diseases Research Division, Bambino Gesù Children's Hospital, IRCCS, 00146 Rome, Italy
| | - Chiara Aiello
- Genetics and Rare Diseases Research Division, Bambino Gesù Children's Hospital, IRCCS, 00146 Rome, Italy
| | - Stefania Petrini
- Confocal Microscopy Core Facility, Research Laboratories, Ospedale Pediatrico Bambino Gesù, 00146 Rome, Italy
| | - Andrea Ciolfi
- Genetics and Rare Diseases Research Division, Bambino Gesù Children's Hospital, IRCCS, 00146 Rome, Italy
| | - Francesca Cipressa
- University of Rome "Sapienza", Department of Biology and Biotechnology, 00185 Rome, Italy
| | - Isabella Moroni
- Department of Pediatric Neuroscience, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy
| | - Vincenzo Leuzzi
- Department of Human Neuroscience, Unit of Child Neurology and Psychiatry, Sapienza University, 00185 Rome, Italy
| | | | - Federica Marini
- Institute of Biochemistry and Clinical Biochemistry, Università Cattolica del Sacro Cuore, 00168 Rome, Italy.,Department of Laboratory Diagnostic and Infectious Diseases, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy
| | - Odile Boespflug Tanguy
- Service de Neurologie Pédiatrique, Centre de reference leucodystrophies et leucoencephalopathies de cause rare (LEUKOFRANCE), APHP Hopital Robert-Debré, 75019 Paris, France.,Université de Paris, NeuroDiderot, UMR 1141 INSERM 75651 Paris, France
| | - Eleonore Eymard-Pierre
- Service de Cytogénétique Médicale CHU de Clermont Ferrand, Hopital ESTAING 63003 CLERMONT FERRAND, France
| | - Federica Rachele Danti
- Department of Pediatric Neuroscience, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy
| | - Claudia Compagnucci
- Genetics and Rare Diseases Research Division, Bambino Gesù Children's Hospital, IRCCS, 00146 Rome, Italy
| | - Giovanna Zambruno
- Genetics and Rare Diseases Research Division, Bambino Gesù Children's Hospital, IRCCS, 00146 Rome, Italy
| | - Alfredo Brusco
- Department of Medical Sciences, University of Torino, 10124 Turin, Italy
| | | | - Luisa Chiapparini
- Neuroradiology Department, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy
| | - Paola Francalanci
- Department of Laboratories, Pathology Unit, IRCCS Bambino Gesù Children's Hospital, 00165 Rome, Italy
| | - Anna Livia Loizzo
- DIDASCO Società Cooperativa Sociale- Centro di riabilitazione, 00185 Rome, Italy
| | - Marco Tartaglia
- Genetics and Rare Diseases Research Division, Bambino Gesù Children's Hospital, IRCCS, 00146 Rome, Italy
| | - Gianluca Cestra
- University of Rome "Sapienza", Department of Biology and Biotechnology, 00185 Rome, Italy.,Santa Lucia IRCCS Foundation, 00179 Rome, Italy.,Institute of Biochemistry and Clinical Biochemistry, Università Cattolica del Sacro Cuore, 00168 Rome, Italy.,Institute of Molecular Biology and Pathology (IBPM), National Research Council (CNR) 00185 Rome, Italy
| | - Enrico Bertini
- Genetics and Rare Diseases Research Division, Bambino Gesù Children's Hospital, IRCCS, 00146 Rome, Italy
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8
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Ding B, Tang Y, Ma S, Akter M, Liu ML, Zang T, Zhang CL. Disease Modeling with Human Neurons Reveals LMNB1 Dysregulation Underlying DYT1 Dystonia. J Neurosci 2021; 41:2024-2038. [PMID: 33468570 PMCID: PMC7939088 DOI: 10.1523/jneurosci.2507-20.2020] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 12/23/2020] [Accepted: 12/30/2020] [Indexed: 02/08/2023] Open
Abstract
DYT1 dystonia is a hereditary neurologic movement disorder characterized by uncontrollable muscle contractions. It is caused by a heterozygous mutation in Torsin A (TOR1A), a gene encoding a membrane-embedded ATPase. While animal models provide insights into disease mechanisms, significant species-dependent differences exist since animals with the identical heterozygous mutation fail to show pathology. Here, we model DYT1 by using human patient-specific cholinergic motor neurons (MNs) that are generated through either direct conversion of patients' skin fibroblasts or differentiation of induced pluripotent stem cells (iPSCs). These human MNs with the heterozygous TOR1A mutation show reduced neurite length and branches, markedly thickened nuclear lamina, disrupted nuclear morphology, and impaired nucleocytoplasmic transport (NCT) of mRNAs and proteins, whereas they lack the perinuclear "blebs" that are often observed in animal models. Furthermore, we uncover that the nuclear lamina protein LMNB1 is upregulated in DYT1 cells and exhibits abnormal subcellular distribution in a cholinergic MNs-specific manner. Such dysregulation of LMNB1 can be recapitulated by either ectopic expression of the mutant TOR1A gene or shRNA-mediated downregulation of endogenous TOR1A in healthy control MNs. Interestingly, downregulation of LMNB1 can largely ameliorate all the cellular defects in DYT1 MNs. These results reveal the value of disease modeling with human patient-specific neurons and indicate that dysregulation of LMNB1, a crucial component of the nuclear lamina, may constitute a major molecular mechanism underlying DYT1 pathology.SIGNIFICANCE STATEMENT Inaccessibility to patient neurons greatly impedes our understanding of the pathologic mechanisms for dystonia. In this study, we employ reprogrammed human patient-specific motor neurons (MNs) to model DYT1, the most severe hereditary form of dystonia. Our results reveal disease-dependent deficits in nuclear morphology and nucleocytoplasmic transport (NCT). Most importantly, we further identify LMNB1 dysregulation as a major contributor to these deficits, uncovering a new pathologic mechanism for DYT1 dystonia.
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Affiliation(s)
- Baojin Ding
- Department of Molecular Biology, Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, Texas 75390
- Department of Biology, University of Louisiana at Lafayette, Lafayette, Louisiana 70503
| | - Yu Tang
- Department of Molecular Biology, Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, Texas 75390
- National Clinical Research Center for Geriatric Disorders, Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, Hunan Province 410008, China
| | - Shuaipeng Ma
- Department of Molecular Biology, Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, Texas 75390
| | - Masuma Akter
- Department of Biology, University of Louisiana at Lafayette, Lafayette, Louisiana 70503
| | - Meng-Lu Liu
- Department of Molecular Biology, Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, Texas 75390
| | - Tong Zang
- Department of Molecular Biology, Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, Texas 75390
| | - Chun-Li Zhang
- Department of Molecular Biology, Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, Texas 75390
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9
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Ratti S, Rusciano I, Mongiorgi S, Owusu Obeng E, Cappellini A, Teti G, Falconi M, Talozzi L, Capellari S, Bartoletti-Stella A, Guaraldi P, Cortelli P, Suh PG, Cocco L, Manzoli L, Ramazzotti G. Cell signaling pathways in autosomal-dominant leukodystrophy (ADLD): the intriguing role of the astrocytes. Cell Mol Life Sci 2021; 78:2781-2795. [PMID: 33034697 PMCID: PMC8004488 DOI: 10.1007/s00018-020-03661-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 09/02/2020] [Accepted: 09/28/2020] [Indexed: 12/17/2022]
Abstract
Autosomal-dominant leukodystrophy (ADLD) is a rare fatal neurodegenerative disorder with overexpression of the nuclear lamina component, Lamin B1 due to LMNB1 gene duplication or deletions upstream of the gene. The molecular mechanisms responsible for driving the onset and development of this pathology are not clear yet. Vacuolar demyelination seems to be one of the most significant histopathological observations of ADLD. Considering the role of oligodendrocytes, astrocytes, and leukemia inhibitory factor (LIF)-activated signaling pathways in the myelination processes, this work aims to analyze the specific alterations in different cell populations from patients with LMNB1 duplications and engineered cellular models overexpressing Lamin B1 protein. Our results point out, for the first time, that astrocytes may be pivotal in the evolution of the disease. Indeed, cells from ADLD patients and astrocytes overexpressing LMNB1 show severe ultrastructural nuclear alterations, not present in oligodendrocytes overexpressing LMNB1. Moreover, the accumulation of Lamin B1 in astrocytes induces a reduction in LIF and in LIF-Receptor (LIF-R) levels with a consequential decrease in LIF secretion. Therefore, in both our cellular models, Jak/Stat3 and PI3K/Akt axes, downstream of LIF/LIF-R, are downregulated. Significantly, the administration of exogenous LIF can partially reverse the toxic effects induced by Lamin B1 accumulation with differences between astrocytes and oligodendrocytes, highlighting that LMNB1 overexpression drastically affects astrocytic function reducing their fundamental support to oligodendrocytes in the myelination process. In addition, inflammation has also been investigated, showing an increased activation in ADLD patients' cells.
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Affiliation(s)
- Stefano Ratti
- Cellular Signalling Laboratory, Department of Biomedical and NeuroMotor Sciences (DIBINEM), University of Bologna, Bologna, Italy
| | - Isabella Rusciano
- Cellular Signalling Laboratory, Department of Biomedical and NeuroMotor Sciences (DIBINEM), University of Bologna, Bologna, Italy
| | - Sara Mongiorgi
- Cellular Signalling Laboratory, Department of Biomedical and NeuroMotor Sciences (DIBINEM), University of Bologna, Bologna, Italy
| | - Eric Owusu Obeng
- Cellular Signalling Laboratory, Department of Biomedical and NeuroMotor Sciences (DIBINEM), University of Bologna, Bologna, Italy
| | - Alessandra Cappellini
- Cellular Signalling Laboratory, Department of Biomedical and NeuroMotor Sciences (DIBINEM), University of Bologna, Bologna, Italy
| | - Gabriella Teti
- Department of Biomedical and NeuroMotor Sciences (DIBINEM), University of Bologna, Via Irnerio 48, Bologna, Italy
| | - Mirella Falconi
- Department of Biomedical and NeuroMotor Sciences (DIBINEM), University of Bologna, Via Irnerio 48, Bologna, Italy
| | - Lia Talozzi
- Functional MR Unit, Department of Biomedical and NeuroMotor Sciences (DIBINEM), University of Bologna, Bologna, Italy
| | - Sabina Capellari
- Department of Biomedical and NeuroMotor Sciences (DIBINEM), University of Bologna, Bologna, Italy
- IRCCS Istituto delle Scienze Neurologiche di Bologna, UOC NeuroMet, Bologna, Italy
| | | | - Pietro Guaraldi
- IRCCS Istituto delle Scienze Neurologiche di Bologna, UOC NeuroMet, Bologna, Italy
| | - Pietro Cortelli
- Department of Biomedical and NeuroMotor Sciences (DIBINEM), University of Bologna, Bologna, Italy
- IRCCS Istituto delle Scienze Neurologiche di Bologna, UOC NeuroMet, Bologna, Italy
| | - Pann-Ghill Suh
- Korea Brain Research Institute, Daegu, Republic of Korea
- School of Life Sciences, UNIST, Ulsan, Republic of Korea
| | - Lucio Cocco
- Cellular Signalling Laboratory, Department of Biomedical and NeuroMotor Sciences (DIBINEM), University of Bologna, Bologna, Italy.
| | - Lucia Manzoli
- Cellular Signalling Laboratory, Department of Biomedical and NeuroMotor Sciences (DIBINEM), University of Bologna, Bologna, Italy.
| | - Giulia Ramazzotti
- Cellular Signalling Laboratory, Department of Biomedical and NeuroMotor Sciences (DIBINEM), University of Bologna, Bologna, Italy
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10
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Koffler-Brill T, Taiber S, Anaya A, Bordeynik-Cohen M, Rosen E, Kolla L, Messika-Gold N, Elkon R, Kelley MW, Ulitsky I, Avraham KB. Identification and characterization of key long non-coding RNAs in the mouse cochlea. RNA Biol 2020; 18:1160-1169. [PMID: 33131415 DOI: 10.1080/15476286.2020.1836456] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
The auditory system is a complex sensory network with an orchestrated multilayer regulatory programme governing its development and maintenance. Accumulating evidence has implicated long non-coding RNAs (lncRNAs) as important regulators in numerous systems, as well as in pathological pathways. However, their function in the auditory system has yet to be explored. Using a set of specific criteria, we selected four lncRNAs expressed in the mouse cochlea, which are conserved in the human transcriptome and are relevant for inner ear function. Bioinformatic characterization demonstrated a lack of coding potential and an absence of evolutionary conservation that represent properties commonly shared by their class members. RNAscope® analysis of the spatial and temporal expression profiles revealed specific localization to inner ear cells. Sub-cellular localization analysis presented a distinct pattern for each lncRNA and mouse tissue expression evaluation displayed a large variability in terms of level and location. Our findings establish the expression of specific lncRNAs in different cell types of the auditory system and present a potential pathway by which the lncRNA Gas5 acts in the inner ear. Studying lncRNAs and deciphering their functions may deepen our knowledge of inner ear physiology and morphology and may reveal the basis of as yet unresolved genetic hearing loss-related pathologies. Moreover, our experimental design may be employed as a reference for studying other inner ear-related lncRNAs, as well as lncRNAs expressed in other sensory systems.
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Affiliation(s)
- Tal Koffler-Brill
- Department of Human Molecular Genetics & Biochemistry, Sackler Faculty of Medicine and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
| | - Shahar Taiber
- Department of Human Molecular Genetics & Biochemistry, Sackler Faculty of Medicine and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
| | - Alejandro Anaya
- Laboratory of Cochlear Development, National Institute on Deafness and Other Communication Disorders, NIH, Bethesda, Maryland, USA
| | - Mor Bordeynik-Cohen
- Department of Human Molecular Genetics & Biochemistry, Sackler Faculty of Medicine and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
| | - Einat Rosen
- Department of Human Molecular Genetics & Biochemistry, Sackler Faculty of Medicine and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
| | - Likhitha Kolla
- Laboratory of Cochlear Development, National Institute on Deafness and Other Communication Disorders, NIH, Bethesda, Maryland, USA
| | - Naama Messika-Gold
- Department of Human Molecular Genetics & Biochemistry, Sackler Faculty of Medicine and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
| | - Ran Elkon
- Department of Human Molecular Genetics & Biochemistry, Sackler Faculty of Medicine and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
| | - Matthew W Kelley
- Laboratory of Cochlear Development, National Institute on Deafness and Other Communication Disorders, NIH, Bethesda, Maryland, USA
| | - Igor Ulitsky
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, Israel
| | - Karen B Avraham
- Department of Human Molecular Genetics & Biochemistry, Sackler Faculty of Medicine and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
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11
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Su X, Xiao D, Huang L, Li S, Ying J, Tong Y, Ye Q, Mu D, Qu Y. MicroRNA Alteration in Developing Rat Oligodendrocyte Precursor Cells Induced by Hypoxia-Ischemia. J Neuropathol Exp Neurol 2020; 78:900-909. [PMID: 31403686 DOI: 10.1093/jnen/nlz071] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
microRNAs (miRNAs) are involved in the pathogenesis of white matter injury (WMI). However, their roles in developing rat brains under hypoxia-ischemia (HI) insult remain unknown. Here, we examined the expression profiles of miRNAs in oligodendrocyte precursor cells using microarray analysis. We identified 162 miRNAs and only 6 were differentially regulated in HI compared with sham. Next, we used these 6 miRNAs and 525 extensively changed coding genes (fold change absolute: FC(abs) ≥2, p < 0.05) to establish the coexpression network, the result revealed that only 3 miRNAs (miR-142-3p, miR-466b-5p, and miR-146a-5p) have differentially expressed targeted mRNAs. RT-PCR analysis showed that the expression of the miRNAs was consistent with the microarray analysis. Further gene ontology and KEGG pathway analysis of the targets of these 3 miRNAs indicated that they were largely associated with neural activity. Furthermore, we found that 2 of the 3 miRNAs, miR-142-3p, and miR-466b-5p, have the same target gene, Capn6, an antiapoptotic gene that is tightly regulated in the pathogenesis of neurological diseases. Collectively, we have shown that a number of miRNAs change in oligodendrocyte precursor cells in response to HI insult in developing brains, and miR-142-3p/miR-466b-5p/Capn6 pathway might affect the pathogenesis of WMI, providing us new clues for the diagnosis and therapy for WMI.
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Affiliation(s)
- Xiaojuan Su
- Department of Pediatrics, West China Second University Hospital.,Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education
| | - Dongqiong Xiao
- Department of Pediatrics, West China Second University Hospital.,Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education
| | - Lingyi Huang
- West China College of Stomatology, Sichuan University, Chengdu, China
| | - Shiping Li
- Department of Pediatrics, West China Second University Hospital.,Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education
| | - Junjie Ying
- Department of Pediatrics, West China Second University Hospital.,Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education
| | - Yu Tong
- Department of Pediatrics, West China Second University Hospital.,Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education
| | - Qianghua Ye
- Department of Pediatrics, West China Second University Hospital.,Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education
| | - Dezhi Mu
- Department of Pediatrics, West China Second University Hospital.,Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education
| | - Yi Qu
- Department of Pediatrics, West China Second University Hospital.,Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education
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12
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Takamori Y, Hirahara Y, Wakabayashi T, Mori T, Koike T, Kataoka Y, Tamura Y, Kurebayashi S, Kurokawa K, Yamada H. Differential expression of nuclear lamin subtypes in the neural cells of the adult rat cerebral cortex. IBRO Rep 2018; 5:99-109. [PMID: 30505974 PMCID: PMC6251786 DOI: 10.1016/j.ibror.2018.11.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 10/12/2018] [Accepted: 11/03/2018] [Indexed: 11/30/2022] Open
Abstract
Lamins are type V intermediate filament proteins that are located beneath the inner nuclear membrane. In mammalian somatic cells, LMNB1 and LMNB2 encode somatic lamins B1 and B2, respectively, and the LMNA gene is alternatively spliced to generate somatic lamins A and C. Mutations in lamin genes have been linked to many human hereditary diseases, including neurodegenerative disorders. Knowledge about lamins in the nervous system has been accumulated recently, but a precise analysis of lamin subtypes in glial cells has not yet been reported. In this study we investigated the composition of lamin subtypes in neurons, astrocytes, oligodendrocyte-lineage cells, and microglia in the adult rat cerebral cortex using an immunohistochemical staining method. Lamin A was not observed in neurons and glial cells. Lamin C was observed in astrocytes, mature oligodendrocytes and neurons, but not observed in oligodendrocyte progenitor cells. Microglia also did not stain positive for lamin C which differed from macrophages, with lamin C positive. Lamin B1 and B2 were observed in all glial cells and neurons. Lamin B1 was intensely positive in oligodendrocyte progenitor cells compared with other glial cells and neurons. Lamin B2 was weakly positive in all glial cells compared to neurons. Our current study might provide useful information to reveal how the onset mechanisms of human neurodegenerative diseases are associated with mutations in genes for nuclear lamin proteins.
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Affiliation(s)
- Yasuharu Takamori
- Department of Anatomy and Cell Science, Kansai Medical University, Osaka, Japan
| | - Yukie Hirahara
- Department of Anatomy and Cell Science, Kansai Medical University, Osaka, Japan
| | | | - Tetsuji Mori
- Department of Anatomy and Cell Science, Kansai Medical University, Osaka, Japan.,Faculty of Medicine, Tottori University, Tottori, Japan
| | - Taro Koike
- Department of Anatomy and Cell Science, Kansai Medical University, Osaka, Japan
| | - Yosky Kataoka
- Laboratory for Cellular Function Imaging, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan.,Multi-Modal Microstructure Analysis Unit, RIKEN-JEOL Collaboration Center, Kobe, Japan
| | - Yasuhisa Tamura
- Laboratory for Cellular Function Imaging, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan.,Multi-Modal Microstructure Analysis Unit, RIKEN-JEOL Collaboration Center, Kobe, Japan
| | - Shuji Kurebayashi
- Department of Anatomy and Cell Science, Kansai Medical University, Osaka, Japan.,Department of School Education Research, Shizuoka University, Shizuoka, Japan
| | - Kiyoshi Kurokawa
- Department of Anatomy and Cell Science, Kansai Medical University, Osaka, Japan.,Department of Human Health Science, Osaka international University, Osaka, Japan
| | - Hisao Yamada
- Department of Anatomy and Cell Science, Kansai Medical University, Osaka, Japan
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13
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Jiang Y, Ji JY. Understanding lamin proteins and their roles in aging and cardiovascular diseases. Life Sci 2018; 212:20-29. [DOI: 10.1016/j.lfs.2018.09.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 09/12/2018] [Accepted: 09/14/2018] [Indexed: 02/04/2023]
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14
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Frankel D, Delecourt V, Harhouri K, De Sandre-Giovannoli A, Lévy N, Kaspi E, Roll P. MicroRNAs in hereditary and sporadic premature aging syndromes and other laminopathies. Aging Cell 2018; 17:e12766. [PMID: 29696758 PMCID: PMC6052405 DOI: 10.1111/acel.12766] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/19/2018] [Indexed: 12/11/2022] Open
Abstract
Hereditary and sporadic laminopathies are caused by mutations in genes encoding lamins, their partners, or the metalloprotease ZMPSTE24/FACE1. Depending on the clinical phenotype, they are classified as tissue‐specific or systemic diseases. The latter mostly manifest with several accelerated aging features, as in Hutchinson–Gilford progeria syndrome (HGPS) and other progeroid syndromes. MicroRNAs are small noncoding RNAs described as powerful regulators of gene expression, mainly by degrading target mRNAs or by inhibiting their translation. In recent years, the role of these small RNAs has become an object of study in laminopathies using in vitro or in vivo murine models as well as cells/tissues of patients. To date, few miRNAs have been reported to exert protective effects in laminopathies, including miR‐9, which prevents progerin accumulation in HGPS neurons. The recent literature has described the potential implication of several other miRNAs in the pathophysiology of laminopathies, mostly by exerting deleterious effects. This review provides an overview of the current knowledge of the functional relevance and molecular insights of miRNAs in laminopathies. Furthermore, we discuss how these discoveries could help to better understand these diseases at the molecular level and could pave the way toward identifying new potential therapeutic targets and strategies based on miRNA modulation.
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Affiliation(s)
- Diane Frankel
- Aix Marseille Univ; INSERM; MMG; Marseille France
- APHM, Hôpital la Timone; Service de Biologie Cellulaire; Marseille France
| | | | | | - Annachiara De Sandre-Giovannoli
- Aix Marseille Univ; INSERM; MMG; Marseille France
- APHM, Hôpital la Timone; Département de Génétique Médicale; Marseille France
| | - Nicolas Lévy
- Aix Marseille Univ; INSERM; MMG; Marseille France
- APHM, Hôpital la Timone; Département de Génétique Médicale; Marseille France
| | - Elise Kaspi
- Aix Marseille Univ; INSERM; MMG; Marseille France
- APHM, Hôpital la Timone; Service de Biologie Cellulaire; Marseille France
| | - Patrice Roll
- Aix Marseille Univ; INSERM; MMG; Marseille France
- APHM, Hôpital la Timone; Service de Biologie Cellulaire; Marseille France
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15
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Cai M, Wang YW, Xu SH, Qiao S, Shu QF, Du JZ, Li YG, Liu XL. Regulatory effects of the long non‑coding RNA RP11‑543N12.1 and microRNA‑324‑3p axis on the neuronal apoptosis induced by the inflammatory reactions of microglia. Int J Mol Med 2018; 42:1741-1755. [PMID: 29956723 DOI: 10.3892/ijmm.2018.3736] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 06/15/2018] [Indexed: 11/06/2022] Open
Abstract
The present study aimed to examine how the long non‑coding RNA (lncRNA) RP11‑543N12.1 interacted with microRNA (miR)‑324‑3p to modify microglials (MIs)‑induced neuroblastoma cell apoptosis, which may pose benefits to the treatment of Alzhemier's disease (AD). The cell model of AD was established by treating SH‑SY5Y cells with amyloid β (Aβ)25‑35, and MI were acquired using primary cell culture technology. The lncRNAs that were differentially expressed between SH‑SY5Y and control cells were screened through a microarray assay and confirmed via polymerase chain reaction. In addition, overexpression of RP11‑543N12.1 and miR‑324‑3p was established by transfection of SH‑SY5Y cells with pcDNA3.1(+)‑RP11‑543N12.1 and miR‑324‑3p mimics, respectively, while downregulation of RP11‑543N12.1 and miR‑324‑3p was achieved by transfection with RP11‑543N12.1‑small interfering RNA (siRNA) and miR‑324‑3p inhibitor, respectively. The interaction between RP11‑543N12.1 and miR‑324‑3p was confirmed with a dual‑luciferase reporter gene assay. The results revealed that the expression levels of total and phosphorylated tau in SH‑SY5Y cells were significantly elevated following Aβ25‑35 treatment (P<0.05), and RP11‑543N12.1 was found to be differentially expressed between the control and Aβ25‑35‑treated cells (P<0.05). Furthermore, the targeted association of RP11‑543N12.1 and miR‑324‑3p was predicted based on miRDB4.0 and PITA databases, and then validated via the dual‑luciferase reporter gene assay. SH‑SY5Y cells transfected with siRNA or inhibitor, and treated with Aβ25‑35 displayed cellular survival and apoptosis that were similar to the normal levels (P<0.05). Finally, co‑culture of MI and SH‑SY5Y cells transfected with RP11‑543N12.1‑siRNA/miR‑324‑3p inhibitor significantly enhanced cell apoptosis (P<0.05). In conclusion, RP11‑543N12.1 targeted miR‑324‑3p to suppress proliferation and promote apoptosis in the AD cell model, suggesting that RP11‑543N12.1 and miR‑324‑3p may be potential biomarkers and therapeutic targets for AD.
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Affiliation(s)
- Miao Cai
- Department of Neurology, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
| | - Yan-Wen Wang
- Department of Neurology, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
| | - Shan-Hu Xu
- Department of Neurology, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
| | - Song Qiao
- Department of Neurology, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
| | - Qin-Fen Shu
- Department of Neurology, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
| | - Jian-Zong Du
- Department of Neurology, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
| | - Ya-Guo Li
- Department of Neurology, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
| | - Xiao-Li Liu
- Department of Neurology, Zhejiang Hospital, Hangzhou, Zhejiang 310013, P.R. China
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16
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Xiao D, Qu Y, Pan L, Li X, Mu D. MicroRNAs participate in the regulation of oligodendrocytes development in white matter injury. Rev Neurosci 2018; 29:151-160. [DOI: 10.1515/revneuro-2017-0019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 07/21/2017] [Indexed: 12/21/2022]
Abstract
AbstractWhite matter injury (WMI) often results in cognitive impairment, behavioral disorders, and cerebral palsy and thus imposes a tremendous burden on society. The cells in brain white matter mainly comprise oligodendrocytes (OLs), astrocytes, and microglia. The dysregulation of OLs development is the pathological hallmark of WMI. Recent studies have demonstrated that microRNAs (miRNAs or miRs) participate in the regulation of OLs development, and the dysregulation of this process represents the pathogenesis of WMI. This review summarizes the progress made in this field that will help clinicians and researchers understand the molecular etiology of WMI and develop miRNAs as new agents for the prevention and treatment of WMI.
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17
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Wang AS, Ong PF, Chojnowski A, Clavel C, Dreesen O. Loss of lamin B1 is a biomarker to quantify cellular senescence in photoaged skin. Sci Rep 2017; 7:15678. [PMID: 29142250 PMCID: PMC5688158 DOI: 10.1038/s41598-017-15901-9] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 11/06/2017] [Indexed: 12/26/2022] Open
Abstract
Skin ageing is an inevitable consequence of life and accelerated by exposure to ultraviolet (UV) rays. Senescence is an irreversible growth arrest and senescent cells accumulate in ageing tissues, at sites of age-related pathologies and in pre-neoplastic lesions. Conventionally, senescent cells have been detected by senescence associated-β-galactosidase (SA-β-gal) staining, a procedure that requires enzymatic activity, which is lost in fixed tissue samples. We previously demonstrated that loss of lamin B1 is a novel marker to identify senescent cells. Here, we demonstrate that loss of lamin B1 facilitates the detection and quantification of senescent cells upon UV-exposure in vitro and upon chronic UV-exposure and skin regeneration in vivo. Taken together, this marker enables the study of environmental conditions on tissue ageing and regeneration in vivo, serves as a diagnostic tool to distinguish senescent from proliferating cells in pre-neoplastic lesions, and facilitates investigating the role of senescent cells in various age-related pathologies.
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Affiliation(s)
- Audrey Shimei Wang
- Cell Ageing, Institute of Medical Biology, 8A Biomedical Grove, #06-06, Immunos, 138648, Singapore
| | - Peh Fern Ong
- Cell Ageing, Institute of Medical Biology, 8A Biomedical Grove, #06-06, Immunos, 138648, Singapore
| | - Alexandre Chojnowski
- Developmental and Regenerative Biology, 8A Biomedical Grove, #06-06, Immunos, 138648, Singapore
| | - Carlos Clavel
- Hair & Pigment Development, Institute of Medical Biology, 8A Biomedical Grove, #06-06, Immunos, 138648, Singapore.
| | - Oliver Dreesen
- Cell Ageing, Institute of Medical Biology, 8A Biomedical Grove, #06-06, Immunos, 138648, Singapore.
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18
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Sandoval-Rodríguez V, Cansino-Torres MA, Sáenz-Farret M, Castañeda-Cisneros G, Moreno G, Zúñiga-Ramírez C. Autosomal dominant leukodystrophy presenting as Alzheimer's-type dementia. Mult Scler Relat Disord 2017; 17:230-233. [PMID: 29055464 DOI: 10.1016/j.msard.2017.08.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 08/14/2017] [Accepted: 08/21/2017] [Indexed: 12/13/2022]
Abstract
Autosomal dominant leukodystrophy is a neurodegenerative disorder caused by either point mutations or duplication of the lamin B1 gene on chromosome 5q23. The typical clinical picture consists of autonomic symptoms as well as cerebellar and pyramidal signs. Here we present the case of a 57-year-old female referred to our clinic due to cognitive decline. Neurological examination was significant for cognitive impairment as well as pyramidal and cerebellar signs. Brain MRI displayed diffuse hyperintense lesions in the subcortical white matter, pontine nuclei, brachium pontis and restiform body. The diagnosis was confirmed via genetic testing. Autosomal dominant leukodystrophy should be included in the differential diagnosis of patients presenting with cognitive impairment, motor signs, and leukodystrophy-like images.
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Affiliation(s)
- Valeria Sandoval-Rodríguez
- Movement Disorders and Neurodegenerative Diseases Unit, Hospital Civil de Guadalajara, "Fray Antonio Alcalde," Hospital, 278 Col. El Retiro, 44280 Guadalajara, Mexico
| | - Mariana Aurora Cansino-Torres
- Movement Disorders and Neurodegenerative Diseases Unit, Hospital Civil de Guadalajara, "Fray Antonio Alcalde," Hospital, 278 Col. El Retiro, 44280 Guadalajara, Mexico
| | - Michel Sáenz-Farret
- Movement Disorders and Neurodegenerative Diseases Unit, Hospital Civil de Guadalajara, "Fray Antonio Alcalde," Hospital, 278 Col. El Retiro, 44280 Guadalajara, Mexico
| | - Gema Castañeda-Cisneros
- Department of Medical Neurogenetics, Genomic Markers, Av. México 3370, 44690 Guadalajara, Mexico
| | - Gabriel Moreno
- Department of Neurology, University of California Davis Medical Center, One Shields Avenue, 95616 Davis, United States
| | - Carlos Zúñiga-Ramírez
- Movement Disorders and Neurodegenerative Diseases Unit, Hospital Civil de Guadalajara, "Fray Antonio Alcalde," Hospital, 278 Col. El Retiro, 44280 Guadalajara, Mexico.
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19
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Millan MJ. Linking deregulation of non-coding RNA to the core pathophysiology of Alzheimer's disease: An integrative review. Prog Neurobiol 2017; 156:1-68. [PMID: 28322921 DOI: 10.1016/j.pneurobio.2017.03.004] [Citation(s) in RCA: 96] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 03/09/2017] [Accepted: 03/09/2017] [Indexed: 02/06/2023]
Abstract
The human genome encodes a vast repertoire of protein non-coding RNAs (ncRNA), some specific to the brain. MicroRNAs, which interfere with the translation of target mRNAs, are of particular interest since their deregulation has been implicated in neurodegenerative disorders like Alzheimer's disease (AD). However, it remains challenging to link the complex body of observations on miRNAs and AD into a coherent framework. Using extensive graphical support, this article discusses how a diverse panoply of miRNAs convergently and divergently impact (and are impacted by) core pathophysiological processes underlying AD: neuroinflammation and oxidative stress; aberrant generation of β-amyloid-42 (Aβ42); anomalies in the production, cleavage and post-translational marking of Tau; impaired clearance of Aβ42 and Tau; perturbation of axonal organisation; disruption of synaptic plasticity; endoplasmic reticulum stress and the unfolded protein response; mitochondrial dysfunction; aberrant induction of cell cycle re-entry; and apoptotic loss of neurons. Intriguingly, some classes of miRNA provoke these cellular anomalies, whereas others act in a counter-regulatory, protective mode. Moreover, changes in levels of certain species of miRNA are a consequence of the above-mentioned anomalies. In addition to miRNAs, circular RNAs, piRNAs, long non-coding RNAs and other types of ncRNA are being increasingly implicated in AD. Overall, a complex mesh of deregulated and multi-tasking ncRNAs reciprocally interacts with core pathophysiological mechanisms underlying AD. Alterations in ncRNAs can be detected in CSF and the circulation as well as the brain and are showing promise as biomarkers, with the ultimate goal clinical exploitation as targets for novel modes of symptomatic and course-altering therapy.
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Affiliation(s)
- Mark J Millan
- Centre for Therapeutic Innovation in Neuropsychiatry, institut de recherche Servier, 125 chemin de ronde, 78290 Croissy sur Seine, France.
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20
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Abstract
Medulloblastoma is the most common malignant brain tumor in children. SPARC (secreted protein acidic and rich in cysteine), a multicellular non-structural glycoprotein is known to be involved in multiple processes in various cancers. Previously, we reported that SPARC expression significantly impairs medulloblastoma tumor growth in vitro and in vivo and also alters chemo sensitivity. MicroRNAs are a class of post-transcriptional gene regulators with critical functions in tumor progression. In addition, microRNA (miRNA) expression changes are also involved in chemo-resistance. Herein, we assessed microRNA (miRNA) profiling to identify the functional network and biological pathways altered in SPARC-overexpressed medulloblastoma cells. A total of 27 differentially expressed miRNAs were identified between the control and SPARC-overexpressed samples. Potential messenger RNA (mRNA) targets of the differentially expressed miRNA were identified using Ingenuity Pathway Analysis (IPA). Network-based functional analyses were performed on the available human protein interaction and miRNA-gene association data to highlight versatile miRNAs among the significantly deregulated miRNAs using the IPA, and the biological pathway analysis using the PANTHER web-based tool. We have identified six miRNAs (miR-125b1*, miR-146a-5p, miR-181a-5p, miR-204-5p, miR-219-5p and miR-509-3p) that are associated with SPARC sensitivity by comparison of miRNA expression patterns from the SPARC treated cells with the control cells. Furthermore, pathway enrichment analysis outline that these six microRNAs mainly belong to biological processes related to cancer related signaling pathways. Collectively, these studies have the potential to indicate novel biomarkers for treatment response and can also be applied to develop novel therapeutic treatment for medulloblastoma.
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21
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Wang B, Gan Z, Wang Z, Yu D, Lin Z, Lu Y, Wu Z, Jian J. Integrated analysis neurimmiRs of tilapia (Oreochromis niloticus) involved in immune response to Streptococcus agalactiae, a pathogen causing meningoencephalitis in teleosts. FISH & SHELLFISH IMMUNOLOGY 2017; 61:44-60. [PMID: 27956091 DOI: 10.1016/j.fsi.2016.12.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 11/30/2016] [Accepted: 12/07/2016] [Indexed: 06/06/2023]
Abstract
MicroRNAs (miRNAs) are a class of noncoding RNA molecules and play important roles in a wide spectrum of biological processes, including in immune response. Recent years have witnessed considerable amount of research interest in studies on miRNA-mediated modulation gene function during neuroinflammation. Here, we evaluated Streptococcus agalactiae infected tilapia (Oreochromis niloticus) brain for the expression profile of miRNAs, potential functions and their correlation with genes involved in inflammatory pathways. A total of 1981 miRNAs were identified, including in 486 miRNAs which have homologues in the currently available databases and 1945 novel miRNAs. The expression levels of 547 miRNAs were significantly altered at 6 h-48 h post-bacterial infection, and these miRNAs were therefore classified as differentially expressed tilapia miRNAs. Real-time PCR were implemented for 14 miRNAs co-expressed in five samples, and agreement was confirmed between the high-throughput sequencing and real-time PCR data. For the 486 differentially expressed miRNAs target 41,820 genes. GO and KEGG enrichment analysis revealed that some target genes of miRNAs were grouped mainly into the categories of apoptotic, signal pathwayand immune response. This is the first report of comprehensive identification of teleost miRNAs being differentially regulated in brain in normal conditions relating to bacterial infection.
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Affiliation(s)
- Bei Wang
- College of Fishery, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animal, Key Laboratory of Control for Disease of Aquatic Animals of Guangdong Higher Education Institutes, Zhanjiang, 524025, China
| | - Zhen Gan
- College of Fishery, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animal, Key Laboratory of Control for Disease of Aquatic Animals of Guangdong Higher Education Institutes, Zhanjiang, 524025, China; State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Zhongliang Wang
- College of Fishery, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animal, Key Laboratory of Control for Disease of Aquatic Animals of Guangdong Higher Education Institutes, Zhanjiang, 524025, China
| | - Dapeng Yu
- College of Fishery, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animal, Key Laboratory of Control for Disease of Aquatic Animals of Guangdong Higher Education Institutes, Zhanjiang, 524025, China
| | - Ziwei Lin
- College of Fishery, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animal, Key Laboratory of Control for Disease of Aquatic Animals of Guangdong Higher Education Institutes, Zhanjiang, 524025, China
| | - Yishan Lu
- College of Fishery, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animal, Key Laboratory of Control for Disease of Aquatic Animals of Guangdong Higher Education Institutes, Zhanjiang, 524025, China
| | - Zaohe Wu
- College of Fishery, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animal, Key Laboratory of Control for Disease of Aquatic Animals of Guangdong Higher Education Institutes, Zhanjiang, 524025, China
| | - Jichang Jian
- College of Fishery, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animal, Key Laboratory of Control for Disease of Aquatic Animals of Guangdong Higher Education Institutes, Zhanjiang, 524025, China.
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22
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Henderson M, Rice B, Sebastian A, Sullivan PG, King C, Robinson RAS, Reed TT. Neuroproteomic study of nitrated proteins in moderate traumatic brain injured rats treated with gamma glutamyl cysteine ethyl ester administration post injury: Insight into the role of glutathione elevation in nitrosative stress. Proteomics Clin Appl 2016; 10:1218-1224. [PMID: 27739215 DOI: 10.1002/prca.201600004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 08/30/2016] [Accepted: 10/10/2016] [Indexed: 01/18/2023]
Abstract
PURPOSE The aims of this study are to establish a time point to determine the most beneficial time to administer GCEE post incident to reduce oxidative damage and second, by using redox proteomics, to determine if GCEE can readily suppress 3-NT modification in TBI animals. EXPERIMENTAL DESIGN By using a moderate traumatic brain injury model with Wistar rats, it is hypothesized that the role of 3-nitrotyrosine (3-NT) formation as an intermediate will predict the involvement of protein nitration/nitrosation and oxidative damage in the brain. RESULTS In this experiment, the levels of protein carbonyls, 4-hydroxynonenal, and 3-nitrotyrosine were significantly elevated in TBI injured, saline treated rats compared with those who sustained an injury and were treated with 150 mg/kg of the glutathione mimetic, GCEE. CONCLUSION AND CLINICAL RELEVANCE Determining the existence of elevated 3-NT levels provides insight into the relationship between the protein nitration/nitrosation and the oxidative damage, which can determine the pathogenesis and progression of specific neurological diseases.
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Affiliation(s)
- Moses Henderson
- Department of Chemistry, Eastern Kentucky University, Richmond, KY, USA
| | - Brittany Rice
- Department of Chemistry, Eastern Kentucky University, Richmond, KY, USA
| | - Andrea Sebastian
- Spinal Cord & Brian Injury Research Center, University of Kentucky, Lexington, KY, USA
| | - Patrick G Sullivan
- Spinal Cord & Brian Injury Research Center, University of Kentucky, Lexington, KY, USA
| | - Christina King
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, USA
| | - Renã A S Robinson
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, USA
| | - Tanea T Reed
- Department of Chemistry, Eastern Kentucky University, Richmond, KY, USA
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23
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Urbanski MM, Kingsbury L, Moussouros D, Kassim I, Mehjabeen S, Paknejad N, Melendez-Vasquez CV. Myelinating glia differentiation is regulated by extracellular matrix elasticity. Sci Rep 2016; 6:33751. [PMID: 27646171 PMCID: PMC5028715 DOI: 10.1038/srep33751] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 09/02/2016] [Indexed: 12/27/2022] Open
Abstract
The mechanical properties of living tissues have a significant impact on cell differentiation, but remain unexplored in the context of myelin formation and repair. In the PNS, the extracellular matrix (ECM) incorporates a basal lamina significantly denser than the loosely organized CNS matrix. Inhibition of non-muscle myosin II (NMII) enhances central but impairs peripheral myelination and NMII has been implicated in cellular responses to changes in the elasticity of the ECM. To directly evaluate whether mechanotransduction plays a role in glial cell differentiation, we cultured Schwann cells (SC) and oligodendrocytes (OL) on matrices of variable elastic modulus, mimicking either their native environment or conditions found in injured tissue. We found that a rigid, lesion-like matrix inhibited branching and differentiation of OL in NMII-dependent manner. By contrast, SC developed normally in both soft and stiffer matrices. Although SC differentiation was not significantly affected by changes in matrix stiffness alone, we found that expression of Krox-20 was potentiated on rigid matrices at high laminin concentration. These findings are relevant to the design of biomaterials to promote healing and regeneration in both CNS and PNS, via transplantation of glial progenitors or the implantation of tissue scaffolds.
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Affiliation(s)
- Mateusz M Urbanski
- Hunter College, Department of Biological Sciences, New York, NY 10065, USA.,The Graduate Center, Molecular Cellular and Developmental Biology, The City University of New York, NY 10016, USA
| | - Lyle Kingsbury
- Hunter College, Department of Biological Sciences, New York, NY 10065, USA
| | - Daniel Moussouros
- Hunter College, Department of Biological Sciences, New York, NY 10065, USA
| | - Imran Kassim
- Hunter College, Department of Biological Sciences, New York, NY 10065, USA
| | - Saraf Mehjabeen
- Hunter College, Department of Biological Sciences, New York, NY 10065, USA
| | - Navid Paknejad
- Molecular Cytology Core Facility, Zuckerman Research Center, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Carmen V Melendez-Vasquez
- Hunter College, Department of Biological Sciences, New York, NY 10065, USA.,The Graduate Center, Molecular Cellular and Developmental Biology, The City University of New York, NY 10016, USA
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24
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Liu J, Moyon S, Hernandez M, Casaccia P. Epigenetic control of oligodendrocyte development: adding new players to old keepers. Curr Opin Neurobiol 2016; 39:133-8. [PMID: 27308779 PMCID: PMC4987162 DOI: 10.1016/j.conb.2016.06.002] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 05/27/2016] [Accepted: 06/01/2016] [Indexed: 01/08/2023]
Abstract
Emerging and strengthening evidence suggests an important role of myelin in plasticity and axonal survival. However, the mechanisms regulating progression from oligodendrocyte progenitor cells (OPCs) to myelinating oligodendrocytes remain only partially understood. A series of overlapping yet distinct epigenetic events occur as a proliferating OPC exits the cell cycle, initiates differentiation, and becomes a myelin-forming oligodendrocyte that wraps axons. Here we discuss recent advances towards understanding the epigenetic control of oligodendrocyte development that integrates environmental stimuli. We suggest that OPCs are directly responsive to extrinsic signals due to predominantly euchromatic nuclei, while the heterochromatic nuclei render differentiating and myelinating cells less susceptible to signals modulating the epigenome.
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Affiliation(s)
- Jia Liu
- Department of Neuroscience, Friedman Brain Institute and Mount Sinai School of Medicine, One Gustave Levy Place, New York, NY 10029, United States.
| | - Sarah Moyon
- Department of Neuroscience, Friedman Brain Institute and Mount Sinai School of Medicine, One Gustave Levy Place, New York, NY 10029, United States
| | - Marylens Hernandez
- Department of Neuroscience, Friedman Brain Institute and Mount Sinai School of Medicine, One Gustave Levy Place, New York, NY 10029, United States
| | - Patrizia Casaccia
- Department of Neuroscience, Friedman Brain Institute and Mount Sinai School of Medicine, One Gustave Levy Place, New York, NY 10029, United States; Department of Genetics and Genomics, Friedman Brain Institute and Mount Sinai School of Medicine, One Gustave Levy Place, New York, NY 10029, United States
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25
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Abstract
Aging is a universal phenomenon in metazoans, characterized by a general decline of the organism physiology associated with an increased risk of mortality and morbidity. Aging of an organism correlates with a decline in function of its cells, as shown for muscle, immune, and neuronal cells. As the DNA content of most cells within an organism remains largely identical throughout the life span, age-associated transcriptional changes must be achieved by epigenetic mechanisms. However, how aging may impact on the epigenetic state of cells is only beginning to be understood. In light of a growing number of studies demonstrating that noncoding RNAs can provide molecular signals that regulate expression of protein-coding genes and define epigenetic states of cells, we hypothesize that noncoding RNAs could play a direct role in inducing age-associated profiles of gene expression. In this context, the role of long noncoding RNAs (lncRNAs) as regulators of gene expression might be important for the overall transcriptional landscape observed in aged human cells. The possible functions of lncRNAs and other noncoding RNAs, and their roles in the regulation of aging-related cellular pathways will be analyzed.
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26
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Hu YB, Li CB, Song N, Zou Y, Chen SD, Ren RJ, Wang G. Diagnostic Value of microRNA for Alzheimer's Disease: A Systematic Review and Meta-Analysis. Front Aging Neurosci 2016; 8:13. [PMID: 26903857 PMCID: PMC4746262 DOI: 10.3389/fnagi.2016.00013] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 01/15/2016] [Indexed: 01/12/2023] Open
Abstract
Sound evidence indicates that microRNAs (miRNAs) are aberrantly expressed in Alzheimer's disease (AD) patients. We performed a systematic review and meta-analysis to investigate the role of miRNA in AD pathogenesis and their clinical diagnostic value; a systematic review of literature and meta-analysis of clinical trials were performed. In the systematic review, 236 papers were included, and we reviewed the dysregulated miRNA expression in different parts of AD patients in order to identify the relationship between aberrantly expressed miRNAs and AD pathology. In the subsequent meta-analysis, seven studies were statistically analyzed with the following results: pooled sensitivity 0.86 (95%CI 0.79-0.90), pooled specificity 0.87 (95%CI 0.72-0.95), diagnostic odds ratio (28.29), and the area under the curve (0.87). In conclusion, our review indicated that aberrant expression of various miRNAs plays an important role in the pathological process of AD, and statistical analysis of quantitative studies reveal the potential value of specific miRNAs in the diagnosis of AD.
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Affiliation(s)
- Yong-Bo Hu
- Department of Neurology, Neuroscience Institute, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai , China
| | - Chun-Bo Li
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine , Shanghai , China
| | - Ning Song
- St George Hospital , Sydney, NSW , Australia
| | - Yang Zou
- Department of Neurology, Neuroscience Institute, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai , China
| | - Sheng-Di Chen
- Department of Neurology, Neuroscience Institute, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai , China
| | - Ru-Jing Ren
- Department of Neurology, Neuroscience Institute, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai , China
| | - Gang Wang
- Department of Neurology, Neuroscience Institute, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai , China
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27
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Intracellular Protein Shuttling: A Mechanism Relevant for Myelin Repair in Multiple Sclerosis? Int J Mol Sci 2015; 16:15057-85. [PMID: 26151843 PMCID: PMC4519887 DOI: 10.3390/ijms160715057] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 06/23/2015] [Accepted: 06/25/2015] [Indexed: 12/15/2022] Open
Abstract
A prominent feature of demyelinating diseases such as multiple sclerosis (MS) is the degeneration and loss of previously established functional myelin sheaths, which results in impaired signal propagation and axonal damage. However, at least in early disease stages, partial replacement of lost oligodendrocytes and thus remyelination occur as a result of resident oligodendroglial precursor cell (OPC) activation. These cells represent a widespread cell population within the adult central nervous system (CNS) that can differentiate into functional myelinating glial cells to restore axonal functions. Nevertheless, the spontaneous remyelination capacity in the adult CNS is inefficient because OPCs often fail to generate new oligodendrocytes due to the lack of stimulatory cues and the presence of inhibitory factors. Recent studies have provided evidence that regulated intracellular protein shuttling is functionally involved in oligodendroglial differentiation and remyelination activities. In this review we shed light on the role of the subcellular localization of differentiation-associated factors within oligodendroglial cells and show that regulation of intracellular localization of regulatory factors represents a crucial process to modulate oligodendroglial maturation and myelin repair in the CNS.
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28
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Giorgio E, Robyr D, Spielmann M, Ferrero E, Di Gregorio E, Imperiale D, Vaula G, Stamoulis G, Santoni F, Atzori C, Gasparini L, Ferrera D, Canale C, Guipponi M, Pennacchio LA, Antonarakis SE, Brussino A, Brusco A. A large genomic deletion leads to enhancer adoption by the lamin B1 gene: a second path to autosomal dominant adult-onset demyelinating leukodystrophy (ADLD). Hum Mol Genet 2015; 24:3143-54. [PMID: 25701871 PMCID: PMC4424952 DOI: 10.1093/hmg/ddv065] [Citation(s) in RCA: 105] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Accepted: 02/13/2015] [Indexed: 01/23/2023] Open
Abstract
Chromosomal rearrangements with duplication of the lamin B1 (LMNB1) gene underlie autosomal dominant adult-onset demyelinating leukodystrophy (ADLD), a rare neurological disorder in which overexpression of LMNB1 causes progressive central nervous system demyelination. However, we previously reported an ADLD family (ADLD-1-TO) without evidence of duplication or other mutation in LMNB1 despite linkage to the LMNB1 locus and lamin B1 overexpression. By custom array-CGH, we further investigated this family and report here that patients carry a large (∼660 kb) heterozygous deletion that begins 66 kb upstream of the LMNB1 promoter. Lamin B1 overexpression was confirmed in further ADLD-1-TO tissues and in a postmortem brain sample, where lamin B1 was increased in the frontal lobe. Through parallel studies, we investigated both loss of genetic material and chromosomal rearrangement as possible causes of LMNB1 overexpression, and found that ADLD-1-TO plausibly results from an enhancer adoption mechanism. The deletion eliminates a genome topological domain boundary, allowing normally forbidden interactions between at least three forebrain-directed enhancers and the LMNB1 promoter, in line with the observed mainly cerebral localization of lamin B1 overexpression and myelin degeneration. This second route to LMNB1 overexpression and ADLD is a new example of the relevance of regulatory landscape modifications in determining Mendelian phenotypes.
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Affiliation(s)
- Elisa Giorgio
- Department of Medical Sciences, University of Torino, via Santena, 19, Torino 10126, Italy
| | - Daniel Robyr
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva 1211, Switzerland
| | - Malte Spielmann
- Max Planck Institute for Molecular Genetics, Ihnestr. 63-73, Berlin 14195, Germany
| | - Enza Ferrero
- Department of Medical Sciences, University of Torino, via Santena, 19, Torino 10126, Italy
| | - Eleonora Di Gregorio
- Department of Medical Sciences, University of Torino, via Santena, 19, Torino 10126, Italy Medical Genetics Unit and
| | - Daniele Imperiale
- Centro Regionale Malattie Da Prioni - Domp (ASLTO2), Torino 10144, Italy
| | - Giovanna Vaula
- Department of Neurology, Città della Salute e della Scienza University Hospital, Torino 10126, Italy
| | - Georgios Stamoulis
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva 1211, Switzerland
| | - Federico Santoni
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva 1211, Switzerland
| | - Cristiana Atzori
- Centro Regionale Malattie Da Prioni - Domp (ASLTO2), Torino 10144, Italy
| | | | | | - Claudio Canale
- Department of Nanophysics, Istituto Italiano di Tecnologia, Genoa 16163, Italy and
| | - Michel Guipponi
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva 1211, Switzerland
| | - Len A Pennacchio
- Genomics Division, Lawrence Berkeley National Laboratory, MS 84-171, Berkeley, CA 9472, USA
| | - Stylianos E Antonarakis
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva 1211, Switzerland
| | - Alessandro Brussino
- Department of Medical Sciences, University of Torino, via Santena, 19, Torino 10126, Italy
| | - Alfredo Brusco
- Department of Medical Sciences, University of Torino, via Santena, 19, Torino 10126, Italy Medical Genetics Unit and
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29
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Abstract
Much of the work on nuclear lamins during the past 15 years has focused on mutations in LMNA (the gene for prelamin A and lamin C) that cause particular muscular dystrophy, cardiomyopathy, partial lipodystrophy, and progeroid syndromes. These disorders, often called "laminopathies," mainly affect mesenchymal tissues (e.g., striated muscle, bone, and fibrous tissue). Recently, however, a series of papers have identified important roles for nuclear lamins in the central nervous system. Studies of knockout mice uncovered a key role for B-type lamins (lamins B1 and B2) in neuronal migration in the developing brain. Also, duplications of LMNB1 (the gene for lamin B1) have been shown to cause autosome-dominant leukodystrophy. Finally, recent studies have uncovered a peculiar pattern of nuclear lamin expression in the brain. Lamin C transcripts are present at high levels in the brain, but prelamin A expression levels are very low-due to regulation of prelamin A transcripts by microRNA 9. This form of prelamin A regulation likely explains why "prelamin A diseases" such as Hutchinson-Gilford progeria syndrome spare the central nervous system. In this review, we summarize recent progress in elucidating links between nuclear lamins and neurobiology.
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