1
|
Fan Y, Zhao M, Hao F, Sun R, Chen J, Liu J. Neuroprotective role of FOXA1 in Parkinson's disease: Involvements of NF1 transcription activation and MAPK signaling pathway inhibition. Brain Res Bull 2024; 206:110860. [PMID: 38143008 DOI: 10.1016/j.brainresbull.2023.110860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 12/07/2023] [Accepted: 12/20/2023] [Indexed: 12/26/2023]
Abstract
Forkhead box A1 (FOXA1), a member of the forkhead family of transcription factors, plays a crucial role in the development of various organ systems and exhibits neuroprotective properties. This study aims to investigate the effect of FOXA1 on Parkinson's disease (PD) and unravel the underlying mechanism. Transcriptome analysis of PD was conducted using three GEO datasets to identify aberrantly expressed genes. A mouse model of PD was generated by injecting neurotoxin 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine hydrochloride (MPTP), resulting in reduced FOXA1 expression. FOXA1 decline was also observed in 1-methyl-4-phenylpyridinium-treated SH-SY5Y cells. Artificial upregulation of FOXA1 improved motor abilities of mice according to rotarod and pole tests, and it mitigated tissue damage, cell loss, and neuronal damage in the mouse substantia nigra or in vitro. FOXA1 was found to bind to the neurofibromin 1 (NF1) promoter, thereby inducing its transcription and inactivating the mitogen-activated protein kinase (MAPK) signaling pathway. Further experimentation revealed that silencing NF1 in mice or SH-SY5Y cells counteracted the neuroprotective effects of FOXA1. In conclusion, this research suggests that FOXA1 activates NF1 transcription and inactivates the MAPK signaling pathway, ultimately ameliorating neuronal damage and motor disability in PD. The findings may offer novel ideas in the field of PD management.
Collapse
Affiliation(s)
- Yu Fan
- Department of Neurology, The Baotou Central Hospital, Baotou 014040, Inner Mongolia, PR China
| | - Meili Zhao
- Department of Neurology, The Baotou Central Hospital, Baotou 014040, Inner Mongolia, PR China
| | - Fei Hao
- Department of Neurology, The Baotou Central Hospital, Baotou 014040, Inner Mongolia, PR China
| | - Ruyi Sun
- Department of Neurology, The Baotou Central Hospital, Baotou 014040, Inner Mongolia, PR China
| | - Jinyu Chen
- Department of Neurology, The Baotou Central Hospital, Baotou 014040, Inner Mongolia, PR China
| | - Jiahui Liu
- Department of Neurology, The Baotou Central Hospital, Baotou 014040, Inner Mongolia, PR China.
| |
Collapse
|
2
|
Lu YT, Rejiepu B, Zhang D, Cai DC, Yang KQ, Tian T, Zhou XL, Fan P. Childhood-Onset Refractory Hypertension Results from Neurofibromatosis Type 1 Caused by a Splicing NF1 Mutation. Kidney Blood Press Res 2023; 48:568-577. [PMID: 37562365 PMCID: PMC10614435 DOI: 10.1159/000533144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 07/19/2023] [Indexed: 08/12/2023] Open
Abstract
INTRODUCTION Neurofibromatosis type 1 (NF-1) is caused by mutations in the NF1 gene that encodes neurofibromin, a negative regulator of RAS proto-oncogene. Approximately one-third of the reported pathogenic mutations in NF1 are splicing mutations, but most consequences are unclear. The objective of this study was to identify the pathogenicity of splicing mutation in a Chinese family with NF-1 and determine the effects of the pre-mRNA splicing mutation by in vitro functional analysis. METHODS Next-generation sequencing was used to screen candidate mutations. We performed a minigene splicing assay to determine the effect of the splicing mutation on NF1 expression, and three-dimensional structure models of neurofibromin were generated using SWISS-MODEL and PROCHECK methods, respectively. RESULTS A pathogenic splicing mutation c.479+1G>C in NF1 was found in the proband characterized by childhood-onset refractory hypertension. In vitro analysis demonstrated that c.479+1G>C mutation caused the skipping of exon 4, leading to a glutamine-to-valine substitution at position 97 in neurofibromin and an open reading frame shift terminating at codon 108. Protein modeling showed that several major domains were missing in the truncated neurofibromin protein. CONCLUSION The splicing mutation c.479+1G>C identified in a Chinese patient with NF-1 and childhood-onset refractory hypertension caused the skipping of exon 4 and a truncated protein. Our findings offer new evidence for the molecular diagnosis of NF-1.
Collapse
Affiliation(s)
- Yi-Ting Lu
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Buweimairemu Rejiepu
- Department of Cardiac Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Di Zhang
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Dong-Cheng Cai
- Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Kun-Qi Yang
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Tao Tian
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xian-Liang Zhou
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Peng Fan
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| |
Collapse
|
3
|
Kuhn E, Natacci F, Corbo M, Pisani L, Ferrero S, Bulfamante G, Gambini D. The Contribution of Oxidative Stress to NF1-Altered Tumors. Antioxidants (Basel) 2023; 12:1557. [PMID: 37627552 PMCID: PMC10451967 DOI: 10.3390/antiox12081557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/02/2023] [Accepted: 08/03/2023] [Indexed: 08/27/2023] Open
Abstract
The neurofibromatosis-1 gene (NF1) was initially characterized because its germline mutation is responsible for an inherited syndromic disease predisposing tumor development, in particular neurofibromas but also various malignancies. Recently, large-scale tumor sequencing efforts have demonstrated NF1 as one of the most frequently mutated genes in human cancer, being mutated in approximately 5-10% of all tumors, especially in malignant peripheral nerve sheath tumors and different skin tumors. NF1 acts as a tumor suppressor gene that encodes neurofibromin, a large protein that controls neoplastic transformation through several molecular mechanisms. On the other hand, neurofibromin loss due to NF1 biallelic inactivation induces tumorigenic hyperactivation of Ras and mTOR signaling pathways. Moreover, neurofibromin controls actin cytoskeleton structure and the metaphase-anaphase transition. Consequently, neurofibromin deficiency favors cell mobility and proliferation as well as chromosomal instability and aneuploidy, respectively. Growing evidence supports the role of oxidative stress in NF1-related tumorigenesis. Neurofibromin loss induces oxidative stress both directly and through Ras and mTOR signaling activation. Notably, innovative therapeutic approaches explore drug combinations that further increase reactive oxygen species to boost the oxidative unbalance of NF1-altered cancer cells. In our paper, we review NF1-related tumors and their pathogenesis, highlighting the twofold contribution of oxidative stress, both tumorigenic and therapeutic.
Collapse
Affiliation(s)
- Elisabetta Kuhn
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, 20122 Milan, Italy; (S.F.); (G.B.)
- Pathology Unit, Foundation IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Federica Natacci
- Medical Genetics Unit, Foundation IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy;
| | - Massimo Corbo
- Department of Neurorehabilitation Sciences, Casa di Cura Igea, 20144 Milan, Italy; (M.C.); (L.P.); (D.G.)
| | - Luigi Pisani
- Department of Neurorehabilitation Sciences, Casa di Cura Igea, 20144 Milan, Italy; (M.C.); (L.P.); (D.G.)
| | - Stefano Ferrero
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, 20122 Milan, Italy; (S.F.); (G.B.)
- Pathology Unit, Foundation IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Gaetano Bulfamante
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, 20122 Milan, Italy; (S.F.); (G.B.)
- Human Pathology and Molecular Pathology, TOMA Advanced Biomedical Assays S.p.A., 21052 Busto Arsizio, Italy
| | - Donatella Gambini
- Department of Neurorehabilitation Sciences, Casa di Cura Igea, 20144 Milan, Italy; (M.C.); (L.P.); (D.G.)
| |
Collapse
|
4
|
Liang C, Huo L, Zhu Y, Yao Z, Wu X, Liang J. The Q181X Point Mutation in Nf1 Induces Cerebral Vessel Stenosis. Neurosci Bull 2023; 39:813-816. [PMID: 36592273 PMCID: PMC9806808 DOI: 10.1007/s12264-022-01005-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 09/20/2022] [Indexed: 01/03/2023] Open
Affiliation(s)
- Chensi Liang
- Central Laboratory, Department of Neurology, Fuxing Hospital, Capital Medical University, Beijing, 100038, China
| | - Lirong Huo
- Central Laboratory, Department of Neurology, Fuxing Hospital, Capital Medical University, Beijing, 100038, China.
| | - Yan Zhu
- Central Laboratory, Department of Neurology, Fuxing Hospital, Capital Medical University, Beijing, 100038, China
| | - Zhichao Yao
- Central Laboratory, Department of Neurology, Fuxing Hospital, Capital Medical University, Beijing, 100038, China
| | - Xiaolong Wu
- Neurosurgery of Xuanwu Hospital, Capital Medical University, Beijing, 100053, China
| | - Jiantao Liang
- Neurosurgery of Xuanwu Hospital, Capital Medical University, Beijing, 100053, China
| |
Collapse
|
5
|
Ognibene M, Scala M, Iacomino M, Schiavetti I, Madia F, Traverso M, Guerrisi S, Di Duca M, Caroli F, Baldassari S, Tappino B, Romano F, Uva P, Vozzi D, Chelleri C, Piatelli G, Diana MC, Zara F, Capra V, Pavanello M, De Marco P. Moyamoya Vasculopathy in Neurofibromatosis Type 1 Pediatric Patients: The Role of Rare Variants of RNF213. Cancers (Basel) 2023; 15:cancers15061916. [PMID: 36980803 PMCID: PMC10047491 DOI: 10.3390/cancers15061916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/15/2023] [Accepted: 03/21/2023] [Indexed: 03/30/2023] Open
Abstract
Neurofibromatosis type 1 (NF1) is a neurocutaneous disorder caused by mutations in NF1 gene, coding for neurofibromin 1. NF1 can be associated with Moyamoya disease (MMD), and this association, typical of paediatric patients, is referred to as Moyamoya syndrome (MMS). MMD is a cerebral arteriopathy characterized by the occlusion of intracranial arteries and collateral vessel formation, which increase the risk of ischemic and hemorrhagic events. RNF213 gene mutations have been associated with MMD, so we investigated whether rare variants of RNF213 could act as genetic modifiers of MMS phenotype in a pediatric cohort of 20 MMS children, 25 children affected by isolated MMD and 47 affected only by isolated NF1. By next-generation re-sequencing (NGS) of patients' DNA and gene burden tests, we found that RNF213 seems to play a role only for MMD occurrence, while it does not appear to be involved in the increased risk of Moyamoya for MMS patients. We postulated that the loss of neurofibromin 1 can be enough for the excessive proliferation of vascular smooth muscle cells, causing Moyamoya arteriopathy associated with NF1. Further studies will be crucial to support these findings and to elucidate the possible role of other genes, enhancing our knowledge about pathogenesis and treatment of MMS.
Collapse
Affiliation(s)
- Marzia Ognibene
- U.O.C. Genetica Medica, IRCCS Istituto Giannina Gaslini, 16147 Genova, Italy
| | - Marcello Scala
- U.O.C. Genetica Medica, IRCCS Istituto Giannina Gaslini, 16147 Genova, Italy
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, Università Degli Studi di Genova, 16145 Genova, Italy
| | - Michele Iacomino
- U.O.C. Genetica Medica, IRCCS Istituto Giannina Gaslini, 16147 Genova, Italy
| | - Irene Schiavetti
- Dipartimento di Scienze della Salute, Università di Genova, 16132 Genova, Italy
| | - Francesca Madia
- U.O.C. Genetica Medica, IRCCS Istituto Giannina Gaslini, 16147 Genova, Italy
| | - Monica Traverso
- U.O.C. Neurologia Pediatrica e Malattie Muscolari, IRCCS Istituto Giannina Gaslini, 16147 Genova, Italy
| | - Sara Guerrisi
- U.O.C. Genetica Medica, IRCCS Istituto Giannina Gaslini, 16147 Genova, Italy
| | - Marco Di Duca
- U.O.C. Genetica Medica, IRCCS Istituto Giannina Gaslini, 16147 Genova, Italy
| | - Francesco Caroli
- U.O.C. Genetica Medica, IRCCS Istituto Giannina Gaslini, 16147 Genova, Italy
| | - Simona Baldassari
- U.O.C. Genetica Medica, IRCCS Istituto Giannina Gaslini, 16147 Genova, Italy
| | - Barbara Tappino
- LABSIEM (Laboratory for the Study of Inborn Errors of Metabolism), IRCCS Istituto Giannina Gaslini, 16147 Genova, Italy
| | - Ferruccio Romano
- U.O.C. Genomica e Genetica Clinica, IRCCS Istituto Giannina Gaslini, 16147 Genova, Italy
| | - Paolo Uva
- Unità di Bioinformatica Clinica, Direzione Scientifica, IRCCS Istituto Giannina Gaslini, 16147 Genova, Italy
| | - Diego Vozzi
- Genomic Facility, Istituto Italiano di Tecnologia, 16163 Genova, Italy
| | - Cristina Chelleri
- U.O.C. Neurologia Pediatrica e Malattie Muscolari, IRCCS Istituto Giannina Gaslini, 16147 Genova, Italy
| | - Gianluca Piatelli
- U.O.C. Neurochirurgia, IRCCS Istituto Giannina Gaslini, 16147 Genova, Italy
| | - Maria Cristina Diana
- U.O.C. Neurologia Pediatrica e Malattie Muscolari, IRCCS Istituto Giannina Gaslini, 16147 Genova, Italy
| | - Federico Zara
- U.O.C. Genetica Medica, IRCCS Istituto Giannina Gaslini, 16147 Genova, Italy
| | - Valeria Capra
- U.O.C. Genomica e Genetica Clinica, IRCCS Istituto Giannina Gaslini, 16147 Genova, Italy
| | - Marco Pavanello
- U.O.C. Neurochirurgia, IRCCS Istituto Giannina Gaslini, 16147 Genova, Italy
| | - Patrizia De Marco
- U.O.C. Genetica Medica, IRCCS Istituto Giannina Gaslini, 16147 Genova, Italy
| |
Collapse
|
6
|
Vickridge E, Faraco CCF, Nepveu A. Base excision repair accessory factors in senescence avoidance and resistance to treatments. CANCER DRUG RESISTANCE (ALHAMBRA, CALIF.) 2022; 5:703-720. [PMID: 36176767 PMCID: PMC9511810 DOI: 10.20517/cdr.2022.36] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 05/20/2022] [Accepted: 05/26/2022] [Indexed: 06/16/2023]
Abstract
Cancer cells, in which the RAS and PI3K pathways are activated, produce high levels of reactive oxygen species (ROS), which cause oxidative DNA damage and ultimately cellular senescence. This process has been documented in tissue culture, mouse models, and human pre-cancerous lesions. In this context, cellular senescence functions as a tumour suppressor mechanism. Some rare cancer cells, however, manage to adapt to avoid senescence and continue to proliferate. One well-documented mode of adaptation involves increased production of antioxidants often associated with inactivation of the KEAP1 tumour suppressor gene and the resulting upregulation of the NRF2 transcription factor. In this review, we detail an alternative mode of adaptation to oxidative DNA damage induced by ROS: the increased activity of the base excision repair (BER) pathway, achieved through the enhanced expression of BER enzymes and DNA repair accessory factors. These proteins, exemplified here by the CUT domain proteins CUX1, CUX2, and SATB1, stimulate the activity of BER enzymes. The ensued accelerated repair of oxidative DNA damage enables cancer cells to avoid senescence despite high ROS levels. As a by-product of this adaptation, these cancer cells exhibit increased resistance to genotoxic treatments including ionizing radiation, temozolomide, and cisplatin. Moreover, considering the intrinsic error rate associated with DNA repair and translesion synthesis, the elevated number of oxidative DNA lesions caused by high ROS leads to the accumulation of mutations in the cancer cell population, thereby contributing to tumour heterogeneity and eventually to the acquisition of resistance, a major obstacle to clinical treatment.
Collapse
Affiliation(s)
- Elise Vickridge
- Goodman Cancer Institute, McGill University, 1160 Pine avenue West, Montreal, Québec H3A 1A3, Canada
- These authors contributed equally to this work
| | - Camila C. F. Faraco
- Goodman Cancer Institute, McGill University, 1160 Pine avenue West, Montreal, Québec H3A 1A3, Canada
- Departments of Biochemistry, McGill University, 1160 Pine avenue West, Montreal, Québec H3A 1A3, Canada
- These authors contributed equally to this work
| | - Alain Nepveu
- Goodman Cancer Institute, McGill University, 1160 Pine avenue West, Montreal, Québec H3A 1A3, Canada
- Departments of Biochemistry, McGill University, 1160 Pine avenue West, Montreal, Québec H3A 1A3, Canada
- Medicine, McGill University, 1160 Pine avenue West, Montreal, Québec H3A 1A3, Canada
- Oncology, McGill University, 1160 Pine avenue West, Montreal, Québec H3A 1A3, Canada
| |
Collapse
|
7
|
Tritz R, Hudson FZ, Harris V, Ghoshal P, Singla B, Lin H, Csanyi G, Stansfield BK. MEK inhibition exerts temporal and myeloid cell-specific effects in the pathogenesis of neurofibromatosis type 1 arteriopathy. Sci Rep 2021; 11:24345. [PMID: 34934133 PMCID: PMC8692602 DOI: 10.1038/s41598-021-03750-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 12/09/2021] [Indexed: 11/18/2022] Open
Abstract
Mutations in the NF1 tumor suppressor gene are linked to arteriopathy. Nf1 heterozygosity (Nf1+/–) results in robust neointima formation, similar to humans, and myeloid-restricted Nf1+/– recapitulates this phenotype via MEK-ERK activation. Here we define the contribution of myeloid subpopulations to NF1 arteriopathy. Neutrophils from WT and Nf1+/– mice were functionally assessed in the presence of MEK and farnesylation inhibitors in vitro and neutrophil recruitment to lipopolysaccharide was assessed in WT and Nf1+/– mice. Littermate 12–15 week-old male wildtype and Nf1+/– mice were subjected to carotid artery ligation and provided either a neutrophil depleting antibody (1A8), liposomal clodronate to deplete monocytes/macrophages, or PD0325901 and neointima size was assessed 28 days after injury. Bone marrow transplant experiments assessed monocyte/macrophage mobilization during neointima formation. Nf1+/– neutrophils exhibit enhanced proliferation, migration, and adhesion via p21Ras activation of MEK in vitro and in vivo. Neutrophil depletion suppresses circulating Ly6Clow monocytes and enhances neointima size, while monocyte/macrophage depletion and deletion of CCR2 in bone marrow cells abolish neointima formation in Nf1+/– mice. Taken together, these findings suggest that neurofibromin-MEK-ERK activation in circulating neutrophils and monocytes during arterial remodeling is nuanced and points to important cross-talk between these populations in the pathogenesis of NF1 arteriopathy.
Collapse
Affiliation(s)
- Rebekah Tritz
- Vascular Biology Center, Augusta University, Augusta, GA, USA
| | - Farlyn Z Hudson
- Vascular Biology Center, Augusta University, Augusta, GA, USA
| | - Valerie Harris
- Vascular Biology Center, Augusta University, Augusta, GA, USA
| | | | - Bhupesh Singla
- Vascular Biology Center, Augusta University, Augusta, GA, USA
| | - Huiping Lin
- Vascular Biology Center, Augusta University, Augusta, GA, USA
| | - Gabor Csanyi
- Vascular Biology Center, Augusta University, Augusta, GA, USA.,Department of Pharmacology and Toxicology, Augusta University, Augusta, GA, USA
| | - Brian K Stansfield
- Vascular Biology Center, Augusta University, Augusta, GA, USA. .,Division of Neonatology, Department of Pediatrics, Medical College of Georgia at Augusta University, Augusta University, 1120 15th St, BIW6033, Augusta, GA, 30912, USA.
| |
Collapse
|
8
|
Cutruzzolà A, Irace C, Frazzetto M, Sabatino J, Gullace R, De Rosa S, Spaccarotella C, Concolino D, Indolfi C, Gnasso A. Functional and morphological cardiovascular alterations associated with neurofibromatosis 1. Sci Rep 2020; 10:12070. [PMID: 32694667 PMCID: PMC7374589 DOI: 10.1038/s41598-020-68908-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 06/30/2020] [Indexed: 11/26/2022] Open
Abstract
Subjects with Neurofibromatosis 1 (NF1) develop vascular complications. The protein product of the gene affected in NF1, neurofibromin, physiologically modulates endothelial function and preserves vascular and myocardial structure. Our study aimed to verify whether subjects with NF1 have early, preclinical abnormalities of carotid artery structure, brachial artery function, and cardiac function. We recruited 22 NF1 subjects without previous cardiovascular events and 22 healthy control subjects. All subjects underwent measurement of carotid artery intima-media thickness (IMT), evaluation of brachial artery endothelial function after ischemia and exercise, and cardiac function. Mean IMT was 543 ± 115 μ in NF1 subjects and 487 ± 70 μ in Controls (p < 0.01). Endothelial function was significantly dumped in NF1 subjects. The dilation after ischemia and exercise was respectively 7.5(± 4.8)% and 6.7(± 3.0)% in NF1 versus 10.5(± 1.2)% and 10.5(± 2.1)% in control subjects (p < 0.02; p < 0.002). Left ventricular systolic function assessed by Global Longitudinal Strain was significantly different between NF1 subjects and Controls: − 19.3(± 1.7)% versus − 21.5(± 2.7)% (p < 0.008). These findings demonstrate that NF1 patients have early morphological and functional abnormalities of peripheral arteries and systolic cardiac impairment and suggest the need for a tight cardiovascular risk evaluation and primary prevention in subjects with NF1.
Collapse
Affiliation(s)
- Antonio Cutruzzolà
- Dipartimento di Medicina Sperimentale e Clinica, University Magna Græcia, Viale Europa Località Germaneto, 88100, Catanzaro, Italy
| | - Concetta Irace
- Dipartimento di Scienze della Salute, University Magna Græcia, Catanzaro, Italy
| | - Marco Frazzetto
- Dipartimento di Scienze della Salute, University Magna Græcia, Catanzaro, Italy
| | - Jolanda Sabatino
- Dipartimento di Scienze Mediche e Chirurgiche, University Magna Græcia, Catanzaro, Italy.,Center of Cardiovascular Research, University Magna Graecia, Mediterranea Cardio Centro, Catanzaro, Napoli, Italy
| | - Rosa Gullace
- Dipartimento di Scienze della Salute, University Magna Græcia, Catanzaro, Italy
| | - Salvatore De Rosa
- Dipartimento di Scienze Mediche e Chirurgiche, University Magna Græcia, Catanzaro, Italy.,Center of Cardiovascular Research, University Magna Graecia, Mediterranea Cardio Centro, Catanzaro, Napoli, Italy
| | - Carmen Spaccarotella
- Center of Cardiovascular Research, University Magna Graecia, Mediterranea Cardio Centro, Catanzaro, Napoli, Italy
| | - Daniela Concolino
- Dipartimento di Scienze della Salute, University Magna Græcia, Catanzaro, Italy
| | - Ciro Indolfi
- Dipartimento di Scienze Mediche e Chirurgiche, University Magna Græcia, Catanzaro, Italy.,Center of Cardiovascular Research, University Magna Graecia, Mediterranea Cardio Centro, Catanzaro, Napoli, Italy
| | - Agostino Gnasso
- Dipartimento di Medicina Sperimentale e Clinica, University Magna Græcia, Viale Europa Località Germaneto, 88100, Catanzaro, Italy.
| |
Collapse
|
9
|
Dote Y, Kibe T, Murakami T, Awazu M. Ask-Upmark kidney in a girl with neurofibromatosis type 1. CEN Case Rep 2020; 9:285-288. [PMID: 32277359 DOI: 10.1007/s13730-020-00470-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 03/25/2020] [Indexed: 11/26/2022] Open
Abstract
Ask-Upmark kidney (AUK) is a scarred segment of the kidney, characterized by formation of primitive tubular and glomerular structures, and sporadically diagnosed as a cause of hypertension (HTN). A 6-year-old girl with neurofibromatosis type 1 (NF1) and moyamoya syndrome had severe HTN. Based on past history, she had HTN at the age of 1.5 years. Laboratory examination revealed slightly elevated plasma and renal venous renin activity without lateralization. No evidence of pheochromocytoma, or coarctation of the aorta was found. Contrast-enhanced computed tomography (CT) showed an area of hypoperfusion in the upper and middle poles with reduced size of the right kidney. The results of dimercaptosuccinic acid scintigraphy were in accordance with those of contrast-enhanced CT. Selected renal arteriography revealed a paucity of peripheral vascularity in the same parts of the right kidney. In the absence of a history of urinary tract infection and vesicoureteral reflux by cystography, we presumed that the severe HTN may be due to segmental hypoplasia of the kidney, AUK, with a possible contribution from NF1. Although renal artery stenosis and pheochromocytoma are well-known causes of HTN in NF1, this case demonstrates that HTN can be caused by AUK in patients with NF1.
Collapse
Affiliation(s)
- Yuri Dote
- Department of Pediatrics, Seirei-Mikatahara General Hospital, 3453 Mikatahara, Hamamatsu, Shizuoka, 433-8558, Japan.
| | - Tetsuya Kibe
- Department of Pediatrics, Seirei-Mikatahara General Hospital, 3453 Mikatahara, Hamamatsu, Shizuoka, 433-8558, Japan
| | - Tomotaka Murakami
- Department of Pediatrics, Seirei-Mikatahara General Hospital, 3453 Mikatahara, Hamamatsu, Shizuoka, 433-8558, Japan
| | - Midori Awazu
- Department of Pediatrics, Keio University School of Medicine, Tokyo, Japan
| |
Collapse
|
10
|
Incecik F, Avcıoğlu G, Erel Ö, Neşelioğlu S, Besen S, Altunbaşak S. Dynamic thiol/disulphide homeostasis in children with neurofibromatosis type 1 and tuberous sclerosis. Acta Neurol Belg 2019; 119:419-422. [PMID: 30820867 DOI: 10.1007/s13760-019-01100-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Accepted: 02/19/2019] [Indexed: 12/24/2022]
Abstract
Neurofibromatosis type 1 (NF1) and tuberous sclerosis (TSC) are autosomal dominant neurocutaneous diseases. Epilepsy, malignancy and other neurological complications are common in both diseases. We aimed to investigate the thiol/disulphide balance as an oxidative stress marker in children who suffer from NF1 and TSC. Twenty-two patients with NF1, 20 TCS, and 22 healthy control subjects were included in the study. The total thiol, native thiol, and disulphide levels were measured and the disulphide/native thiol, disulphide/total thiol and native thiol/total thiol ratios were calculated and compared in three groups. The mean age and sex distribution of the patients with TSC and NF1 and the healthy control were similar. The total thiol, native thiol, and disulfide level was lower in TSC and NF1 group than the healthy control group. There were no significant differences among disulphide/native thiol and disulphide/total thiol ratios of three groups. We detected that the total thiol, native thiol, and disulfide levels were lower in TSC and NF1 group than the healthy control group. These results indicate that dynamic thiol-disulphide homeostasis can be used as a marker of oxidative stress in clinical trials with TSC and NF1.
Collapse
|
11
|
Messina S, De Simone G, Ascenzi P. Cysteine-based regulation of redox-sensitive Ras small GTPases. Redox Biol 2019; 26:101282. [PMID: 31386964 PMCID: PMC6695279 DOI: 10.1016/j.redox.2019.101282] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 07/21/2019] [Accepted: 07/24/2019] [Indexed: 12/22/2022] Open
Abstract
Reactive oxygen and nitrogen species (ROS and RNS, respectively) activate the redox-sensitive Ras small GTPases. The three canonical genes (HRAS, NRAS, and KRAS) are archetypes of the superfamily of small GTPases and are the most common oncogenes in human cancer. Oncogenic Ras is intimately linked to redox biology, mainly in the context of tumorigenesis. The Ras protein structure is highly conserved, especially in effector-binding regions. Ras small GTPases are redox-sensitive proteins thanks to the presence of the NKCD motif (Asn116-Lys 117-Cys118-Asp119). Notably, the ROS- and RNS-based oxidation of Cys118 affects protein stability, activity, and localization, and protein-protein interactions. Cys residues at positions 80, 181, 184, and 186 may also help modulate these actions. Moreover, oncogenic mutations of Gly12Cys and Gly13Cys may introduce additional oxidative centres and represent actionable drug targets. Here, the pathophysiological involvement of Cys-redox regulation of Ras proteins is reviewed in the context of cancer and heart and brain diseases.
Collapse
Affiliation(s)
- Samantha Messina
- Department of Science, Roma Tre University, Viale Guglielmo Marconi 446, I-00146, Roma, Italy.
| | - Giovanna De Simone
- Department of Science, Roma Tre University, Viale Guglielmo Marconi 446, I-00146, Roma, Italy
| | - Paolo Ascenzi
- Department of Science, Roma Tre University, Viale Guglielmo Marconi 446, I-00146, Roma, Italy
| |
Collapse
|
12
|
Loss of GTPase activating protein neurofibromin stimulates paracrine cell communication via macropinocytosis. Redox Biol 2019; 27:101224. [PMID: 31201114 PMCID: PMC6859534 DOI: 10.1016/j.redox.2019.101224] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 04/26/2019] [Accepted: 05/16/2019] [Indexed: 12/28/2022] Open
Abstract
Neurofibromin, the protein product of the neurofibromatosis type 1 (NF1) tumor suppressor gene, is a negative regulator of Ras signaling. Patients with mutations in NF1 have a strong predisposition for cardiovascular disease, which contributes to their early mortality. Nf1 heterozygous (Nf1+/-) bone marrow to wild type chimeras and mice with heterozygous recombination of Nf1 in myeloid cells recapitulate many of the vascular phenotypes observed in Nf1+/- mutants. Although these results suggest that macrophages play a central role in NF1 vasculopathy, the underlying mechanisms are currently unknown. In the present study, we employed macrophages isolated from either Nf1+/- or Lysm Cre+/Nf1f/f mice to test the hypothesis that loss of Nf1 stimulates macropinocytosis in macrophages. Scanning electron microscopy and flow cytometry analysis of FITC-dextran internalization demonstrated that loss of Nf1 in macrophages stimulates macropinocytosis. We next utilized various cellular and molecular approaches, pharmacological inhibitors and genetically modified mice to identify the signaling mechanisms mediating macropinocytosis in Nf1-deficient macrophages. Our results indicate that loss of Nf1 stimulates PKCδ-mediated p47phox phosphorylation via RAS activation, leading to increased NADPH oxidase 2 activity, reactive oxygen species generation, membrane ruffling and macropinocytosis. Interestingly, we also found that Nf1-deficient macrophages internalize exosomes derived from angiotensin II-treated endothelial cells via macropinocytosis in vitro and in the peritoneal cavity in vivo. As a result of exosome internalization, Nf1-deficient macrophages polarized toward an inflammatory M1 phenotype and secreted increased levels of proinflammatory cytokines compared to controls. In conclusion, the findings of the present study demonstrate that loss of Nf1 stimulates paracrine endothelial to myeloid cell communication via macropinocytosis, leading to proinflammatory changes in recipient macrophages.
Collapse
|
13
|
The Protective Roles of Estrogen Receptor β in Renal Calcium Oxalate Crystal Formation via Reducing the Liver Oxalate Biosynthesis and Renal Oxidative Stress-Mediated Cell Injury. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:5305014. [PMID: 31178964 PMCID: PMC6501165 DOI: 10.1155/2019/5305014] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 11/06/2018] [Accepted: 11/15/2018] [Indexed: 11/18/2022]
Abstract
Females develop kidney stones less frequently than males do. However, it is unclear if this gender difference is related to altered estrogen/estrogen receptor (ER) signaling. Here, we found that ER beta (ERβ) signals could suppress hepatic oxalate biosynthesis via transcriptional upregulation of the glyoxylate aminotransferase (AGT1) expression. Results from multiple in vitro renal cell lines also found that ERβ could function via suppressing the oxalate-induced injury through increasing the reactive oxygen species (ROS) production that led to a decrease of the renal calcium oxalate (CaOx) crystal deposition. Mechanism study results showed that ERβ suppressed oxalate-induced oxidative stress via transcriptional suppression of the NADPH oxidase subunit 2 (NOX2) through direct binding to the estrogen response elements (EREs) on the NOX2 5′ promoter. We further applied two in vivo mouse models with glyoxylate-induced renal CaOx crystal deposition and one rat model with 5% hydroxyl-L-proline-induced renal CaOx crystal deposition. Our data demonstrated that mice lacking ERβ (ERβKO) as well as mice or rats treated with ERβ antagonist PHTPP had increased renal CaOx crystal deposition with increased urinary oxalate excretion and renal ROS production. Importantly, targeting ERβ-regulated NOX2 with the NADPH oxidase inhibitor, apocynin, can suppress the renal CaOx crystal deposition in the in vivo mouse model. Together, results from multiple in vitro cell lines and in vivo mouse/rat models all demonstrate that ERβ may protect against renal CaOx crystal deposition via inhibiting the hepatic oxalate biosynthesis and oxidative stress-induced renal injury.
Collapse
|
14
|
Zhang H, Hudson FZ, Xu Z, Tritz R, Rojas M, Patel C, Haigh SB, Bordán Z, Ingram DA, Fulton DJ, Weintraub NL, Caldwell RB, Stansfield BK. Neurofibromin Deficiency Induces Endothelial Cell Proliferation and Retinal Neovascularization. Invest Ophthalmol Vis Sci 2019; 59:2520-2528. [PMID: 29847659 PMCID: PMC5963003 DOI: 10.1167/iovs.17-22588] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Purpose Neurofibromatosis type 1 (NF1) is the result of inherited mutations in the NF1 tumor suppressor gene, which encodes the protein neurofibromin. Eye manifestations are common in NF1 with recent reports describing a vascular dysplasia in the retina and choroid. Common features of NF1 retinopathy include tortuous and dilated feeder vessels that terminate in capillary tufts, increased endothelial permeability, and neovascularization. Given the retinal vascular phenotype observed in persons with NF1, we hypothesize that preserving neurofibromin may be a novel strategy to control pathologic retinal neovascularization. Methods Nf1 expression in human endothelial cells (EC) was reduced using small hairpin (sh) RNA and EC proliferation, migration, and capacity to form vessel-like networks were assessed in response to VEGF and hypoxia. Wild-type (WT), Nf1 heterozygous (Nf1+/−), and Nf1flox/+;Tie2cre pups were subjected to hyperoxia/hypoxia using the oxygen-induced retinopathy model. Retinas were analyzed quantitatively for extent of retinal vessel dropout, neovascularization, and capillary branching. Results Neurofibromin expression was suppressed in response to VEGF, which corresponded with activation of Mek-Erk and PI3-K-Akt signaling. Neurofibromin-deficient EC exhibited enhanced proliferation and network formation in response to VEGF and hypoxia via an Akt-dependent mechanism. In response to hyperoxia/hypoxia, Nf1+/− retinas exhibited increased vessel dropout and neovascularization when compared with WT retinas. Neovascularization was similar between Nf1+/− and Nf1flox/+;Tie2cre retinas, but capillary drop out in Nf1flox/+;Tie2cre retinas was significantly reduced when compared with Nf1+/− retinas. Conclusions These data suggest that neurofibromin expression is essential for controlling endothelial cell proliferation and retinal neovascularization and therapies targeting neurofibromin-deficient EC may be beneficial.
Collapse
Affiliation(s)
- Hanfang Zhang
- Department of Pediatrics and Neonatal-Perinatal Medicine, Augusta University, Augusta, Georgia, United States.,Vascular Biology Center, Augusta University, Augusta, Georgia, United States
| | - Farlyn Z Hudson
- Department of Pediatrics and Neonatal-Perinatal Medicine, Augusta University, Augusta, Georgia, United States.,Vascular Biology Center, Augusta University, Augusta, Georgia, United States
| | - Zhimin Xu
- Vascular Biology Center, Augusta University, Augusta, Georgia, United States
| | - Rebekah Tritz
- Department of Pediatrics and Neonatal-Perinatal Medicine, Augusta University, Augusta, Georgia, United States.,Vascular Biology Center, Augusta University, Augusta, Georgia, United States
| | - Modesto Rojas
- Vascular Biology Center, Augusta University, Augusta, Georgia, United States.,Department of Pharmacology and Toxicology, Augusta University, Augusta, Georgia, United States
| | - Chintan Patel
- Vascular Biology Center, Augusta University, Augusta, Georgia, United States
| | - Stephen B Haigh
- Vascular Biology Center, Augusta University, Augusta, Georgia, United States
| | - Zsuzsanna Bordán
- Vascular Biology Center, Augusta University, Augusta, Georgia, United States
| | - David A Ingram
- Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana, United States.,Department of Neonatal-Perinatal Medicine, Indiana University School of Medicine, Indianapolis, Indiana, United States
| | - David J Fulton
- Vascular Biology Center, Augusta University, Augusta, Georgia, United States.,Department of Pharmacology and Toxicology, Augusta University, Augusta, Georgia, United States
| | - Neal L Weintraub
- Vascular Biology Center, Augusta University, Augusta, Georgia, United States.,Department of Cardiology, Augusta University, Augusta, Georgia, United States
| | - Ruth B Caldwell
- Vascular Biology Center, Augusta University, Augusta, Georgia, United States.,Vision Discovery Institute, Augusta University, Augusta, Georgia, United States.,Department of Cellular Biology and Anatomy, Augusta University, Augusta, Georgia, United States.,Charlie Norwood VA Medical Center, Augusta, Georgia, United States
| | - Brian K Stansfield
- Department of Pediatrics and Neonatal-Perinatal Medicine, Augusta University, Augusta, Georgia, United States.,Vascular Biology Center, Augusta University, Augusta, Georgia, United States.,Vision Discovery Institute, Augusta University, Augusta, Georgia, United States
| |
Collapse
|
15
|
Jutant EM, Girerd B, Jaïs X, Savale L, O'Connell C, Perros F, Sitbon O, Humbert M, Montani D. Pulmonary hypertension associated with neurofibromatosis type 1. Eur Respir Rev 2018; 27:27/149/180053. [PMID: 30158278 PMCID: PMC9488681 DOI: 10.1183/16000617.0053-2018] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Accepted: 07/28/2018] [Indexed: 12/11/2022] Open
Abstract
Neurofibromatosis type 1 (NF1), also known as von Recklinghausen disease, is a frequent autosomal dominant genetic disorder with a prevalence of 1 in 3000. Pulmonary hypertension (PH) associated with NF1 (PH-NF1) is a rare but severe complication of NF1 and is classified as Group 5 PH, defined as “PH with unclear and/or multifactorial mechanisms”. A literature review in PubMed on the association between NF1 and PH identified 18 articles describing 31 cases. PH-NF1 was characterised by a female predominance, an advanced age at diagnosis, an association with parenchymal lung disease in two out of three cases and poor long-term prognosis. NF1 is generally associated with interstitial lung disease but some cases of severe PH without parenchymal lung disease suggest that there could be a specific pulmonary vascular disease. There is no data available on the efficacy of specific pulmonary arterial hypertension treatment in PH-NF1. Therefore, these patients should be evaluated in expert PH centres and referred for lung transplantation at an early stage. As these patients have an increased risk of malignancy, careful assessment of the post-transplant malignancy risk prior to listing for transplantation is necessary. Clinical trials are needed to evaluate promising treatments targeting the RAS-downstream signalling pathways. Pulmonary hypertension is a rare but severe complication of neurofibromatosis type 1. There are no data about the efficacy of specific PAH treatment in this disease and lung transplantation should be discussed at an early stage.http://ow.ly/JMU030lezfY
Collapse
Affiliation(s)
- Etienne-Marie Jutant
- Université Paris-Sud, Faculté de Médecine, Paris, France.,AP-HP, Centre de Référence de l'Hypertension Pulmonaire Sévère, Dépt Hospitalo-Universitaire (DHU) Thorax Innovation (TORINO), Service de Pneumologie, Hôpital de Bicêtre, Paris, France.,UMR_S 999, Univ. Paris-Sud, INSERM, Laboratoire d'Excellence (LabEx) en Recherche sur le Médicament et l'Innovation Thérapeutique (LERMIT), Hôpital Marie-Lannelongue, Paris, France
| | - Barbara Girerd
- Université Paris-Sud, Faculté de Médecine, Paris, France.,AP-HP, Centre de Référence de l'Hypertension Pulmonaire Sévère, Dépt Hospitalo-Universitaire (DHU) Thorax Innovation (TORINO), Service de Pneumologie, Hôpital de Bicêtre, Paris, France.,UMR_S 999, Univ. Paris-Sud, INSERM, Laboratoire d'Excellence (LabEx) en Recherche sur le Médicament et l'Innovation Thérapeutique (LERMIT), Hôpital Marie-Lannelongue, Paris, France
| | - Xavier Jaïs
- Université Paris-Sud, Faculté de Médecine, Paris, France.,AP-HP, Centre de Référence de l'Hypertension Pulmonaire Sévère, Dépt Hospitalo-Universitaire (DHU) Thorax Innovation (TORINO), Service de Pneumologie, Hôpital de Bicêtre, Paris, France.,UMR_S 999, Univ. Paris-Sud, INSERM, Laboratoire d'Excellence (LabEx) en Recherche sur le Médicament et l'Innovation Thérapeutique (LERMIT), Hôpital Marie-Lannelongue, Paris, France
| | - Laurent Savale
- Université Paris-Sud, Faculté de Médecine, Paris, France.,AP-HP, Centre de Référence de l'Hypertension Pulmonaire Sévère, Dépt Hospitalo-Universitaire (DHU) Thorax Innovation (TORINO), Service de Pneumologie, Hôpital de Bicêtre, Paris, France.,UMR_S 999, Univ. Paris-Sud, INSERM, Laboratoire d'Excellence (LabEx) en Recherche sur le Médicament et l'Innovation Thérapeutique (LERMIT), Hôpital Marie-Lannelongue, Paris, France
| | - Caroline O'Connell
- Service de Chirurgie Thoracique, Vasculaire et Transplantation Pulmonaire, Hôpital Marie-Lannelongue, Paris, France
| | - Frederic Perros
- Université Paris-Sud, Faculté de Médecine, Paris, France.,UMR_S 999, Univ. Paris-Sud, INSERM, Laboratoire d'Excellence (LabEx) en Recherche sur le Médicament et l'Innovation Thérapeutique (LERMIT), Hôpital Marie-Lannelongue, Paris, France
| | - Olivier Sitbon
- Université Paris-Sud, Faculté de Médecine, Paris, France.,AP-HP, Centre de Référence de l'Hypertension Pulmonaire Sévère, Dépt Hospitalo-Universitaire (DHU) Thorax Innovation (TORINO), Service de Pneumologie, Hôpital de Bicêtre, Paris, France.,UMR_S 999, Univ. Paris-Sud, INSERM, Laboratoire d'Excellence (LabEx) en Recherche sur le Médicament et l'Innovation Thérapeutique (LERMIT), Hôpital Marie-Lannelongue, Paris, France
| | - Marc Humbert
- Université Paris-Sud, Faculté de Médecine, Paris, France.,AP-HP, Centre de Référence de l'Hypertension Pulmonaire Sévère, Dépt Hospitalo-Universitaire (DHU) Thorax Innovation (TORINO), Service de Pneumologie, Hôpital de Bicêtre, Paris, France.,UMR_S 999, Univ. Paris-Sud, INSERM, Laboratoire d'Excellence (LabEx) en Recherche sur le Médicament et l'Innovation Thérapeutique (LERMIT), Hôpital Marie-Lannelongue, Paris, France
| | - David Montani
- Université Paris-Sud, Faculté de Médecine, Paris, France.,AP-HP, Centre de Référence de l'Hypertension Pulmonaire Sévère, Dépt Hospitalo-Universitaire (DHU) Thorax Innovation (TORINO), Service de Pneumologie, Hôpital de Bicêtre, Paris, France.,UMR_S 999, Univ. Paris-Sud, INSERM, Laboratoire d'Excellence (LabEx) en Recherche sur le Médicament et l'Innovation Thérapeutique (LERMIT), Hôpital Marie-Lannelongue, Paris, France
| |
Collapse
|
16
|
Santoro C, Giugliano T, Kraemer M, Torella A, Schwitalla JC, Cirillo M, Melis D, Berlit P, Nigro V, Perrotta S, Piluso G. Whole exome sequencing identifies MRVI1 as a susceptibility gene for moyamoya syndrome in neurofibromatosis type 1. PLoS One 2018; 13:e0200446. [PMID: 30001348 PMCID: PMC6042724 DOI: 10.1371/journal.pone.0200446] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 06/26/2018] [Indexed: 12/30/2022] Open
Abstract
Background and purpose Moyamoya angiopathy is a progressive cerebral vasculopathy. The p.R4810K substitution in RNF213 has previously been linked to moyamoya disease in Asian populations. When associated with other medical conditions, such as neurofibromatosis type 1, this vasculopathy is frequently reported as moyamoya syndrome. Intriguingly, most cases of moyamoya-complicated neurofibromatosis type 1 have been described in Caucasians, inverting the population ratio observed in Asians, although prevalence of neurofibromatosis type 1 is constant worldwide. Our aim was to investigate whether, among Caucasians, additive genetic factors may contribute to the occurrence of moyamoya in neurofibromatosis type 1. Methods Whole exome sequencing was carried out on an Italian family with moyamoya-complicated neurofibromatosis type 1 to identify putative genetic modifiers independent of the NF1 locus and potentially involved in moyamoya pathogenesis. Results were validated in an unrelated family of German ancestry. Results We identified the p.P186S substitution (rs35857561) in MRVI1 that segregated with moyamoya syndrome in both the Italian and German family. Conclusions The rs35857561 polymorphism in MRVI1 may be a genetic susceptibility factor for moyamoya in European patients with neurofibromatosis type 1. MRVI1 is a functional partner of ITPR1, PRKG1 and GUCY1A3, which are involved in response to nitric oxide. Mutations in GUCY1A3 have been recently linked to a recessive syndromic form of moyamoya with esophageal achalasia.
Collapse
Affiliation(s)
- Claudia Santoro
- Dipartimento della Donna, del Bambino e di Chirurgia Generale e Specialistica, Università degli Studi della Campania “Luigi Vanvitelli”, Naples, Italy
| | - Teresa Giugliano
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania “Luigi Vanvitelli”, Naples, Italy
| | - Markus Kraemer
- Department of Neurology, Alfried Krupp Hospital, Essen, Germany
- Department of Neurology, Heinrich-Heine-University, Medical Faculty, Düsseldorf, Germany
| | - Annalaura Torella
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania “Luigi Vanvitelli”, Naples, Italy
- Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Italy
| | | | - Mario Cirillo
- Dipartimento di Scienze Mediche, Chirurgiche, Neurologiche, Metaboliche e dell’Invecchiamento, Università degli Studi della Campania “Luigi Vanvitelli”, Naples, Italy
| | - Daniela Melis
- Dipartimento di Pediatria, Università degli Studi di Napoli "Federico II", Naples, Italy
| | - Peter Berlit
- Department of Neurology, Alfried Krupp Hospital, Essen, Germany
| | - Vincenzo Nigro
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania “Luigi Vanvitelli”, Naples, Italy
- Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Italy
| | - Silverio Perrotta
- Dipartimento della Donna, del Bambino e di Chirurgia Generale e Specialistica, Università degli Studi della Campania “Luigi Vanvitelli”, Naples, Italy
| | - Giulio Piluso
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania “Luigi Vanvitelli”, Naples, Italy
- * E-mail:
| |
Collapse
|
17
|
When and why is surgical revascularization indicated for the treatment of moyamoya syndrome in patients with RASopathies? A systematic review of the literature and a single institute experience. Childs Nerv Syst 2018; 34:1311-1323. [PMID: 29797062 DOI: 10.1007/s00381-018-3833-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 05/13/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND Moyamoya disease (MMD) is a cerebrovascular disorder characterized by the progressive occlusion of the supraclinoid internal carotid artery (ICA), resulting in the formation of an abnormal cerebral vascular network. When MMD occurs in association with an underlying medical condition, including some distinctive genetic disorders, it is named moyamoya syndrome (MMS). The discrimination between MMD and MMS has been validated by recent genetic researches and international reviews. Similarly to patients suffering from MMD, patients with MMS generally become symptomatic because of ischemic complications, which lead to hemiparesis, transient ischemic events, seizures, and sensory symptoms. RASopathies are a group of neurodevelopmental disorders that can be associated with MMS. RESULTS We retrospectively reviewed 18 RASopathy patients with MMS treated at our institution from 2000 to 2015 (16 neurofibromatosis type 1, 1 Costello syndrome, and 1 Schimmelpenning syndrome). Here, we report clinical data, performed surgical procedures, and clinic-radiological outcome of these patients. Most of them received both indirect revascularization and medical therapy. CONCLUSIONS At the moment, there are no univocal recommendations on which of these two treatment strategies is the treatment of choice in patients with RASopathies and MMS. We suggest that patients with a good overall prognosis (primarily depending on the distinctive underlying genetic disorder) and initial cerebrovascular disease could benefit from a prophylactic surgical revascularization, in order to prevent the cognitive impairment due to the progression of the vasculopathy.
Collapse
|
18
|
Lipoamide Inhibits NF1 Deficiency-induced Epithelial-Mesenchymal Transition in Murine Schwann Cells. Arch Med Res 2017; 48:498-505. [PMID: 29198560 DOI: 10.1016/j.arcmed.2017.11.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 11/24/2017] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND AIMS Neurofibromatosis type I (NF1) is one of the most common neurocutaneous syndromes characterized by development of adult neurofibromas which is mainly made up of Schwann cells. The disease is generally accepted to be caused by inactivation mutation of Nf1 gene. And Nf1 deficiency had been reported to lead to ROS overproduction and epithelial-mesenchymal transition (EMT) phenotype. This study was designed to investigate whether excessive ROS conferred to Nf1 deficiency-induced EMT in Schwann cells. METHODS Colony formation, wound healing assay and transwell assay was used to evaluate the effects of stable Nf1 knockdown in SW10 Schwann cells. Western blot and ROS assay was conducted to explore the molecular mechanisms of Nf1 inactivation in tumorigenesis. Animal experiments were performed to assess the inhibitory effects of lipoamide, which is the neutral amide of α-lipoic acid and functions as a potent antioxidant to scavenge ROS, on Nf1-deficiency tumor growth in vivo. RESULTS Nf1 knockdown enhanced the cellular capacities of proliferation, migration and invasion, promoted ROS generation, decreased the expression of epithelial surface marker E-cadherin, and up-regulated several EMT-associated molecules in Schwann cells. Moreover, lipoamide dose-dependently inhibited not only Nf1 deficiency-induced EMT but also spontaneous EMT. Furthermore, lipoamide markedly suppresses tumor growth in a mouse model of NF1-associated neurofibroma. CONCLUSIONS Our results clearly reveal that ROS overproduction is responsible for Nf1 deficiency-induced EMT and plays a crucial role in NF1 tumor growth. The findings presented herein shed light on the potential of antioxidant therapy to prevent the progression of NF1-associated neurofibroma.
Collapse
|
19
|
Genetic and Epigenetic Regulation of Aortic Aneurysms. BIOMED RESEARCH INTERNATIONAL 2017; 2017:7268521. [PMID: 28116311 PMCID: PMC5237727 DOI: 10.1155/2017/7268521] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 12/15/2016] [Indexed: 02/07/2023]
Abstract
Aneurysms are characterized by structural deterioration of the vascular wall leading to progressive dilatation and, potentially, rupture of the aorta. While aortic aneurysms often remain clinically silent, the morbidity and mortality associated with aneurysm expansion and rupture are considerable. Over 13,000 deaths annually in the United States are attributable to aortic aneurysm rupture with less than 1 in 3 persons with aortic aneurysm rupture surviving to surgical intervention. Environmental and epidemiologic risk factors including smoking, male gender, hypertension, older age, dyslipidemia, atherosclerosis, and family history are highly associated with abdominal aortic aneurysms, while heritable genetic mutations are commonly associated with aneurysms of the thoracic aorta. Similar to other forms of cardiovascular disease, family history, genetic variation, and heritable mutations modify the risk of aortic aneurysm formation and provide mechanistic insight into the pathogenesis of human aortic aneurysms. This review will examine the relationship between heritable genetic and epigenetic influences on thoracic and abdominal aortic aneurysm formation and rupture.
Collapse
|
20
|
Soares Moretti AI, Martins Laurindo FR. Protein disulfide isomerases: Redox connections in and out of the endoplasmic reticulum. Arch Biochem Biophys 2016; 617:106-119. [PMID: 27889386 DOI: 10.1016/j.abb.2016.11.007] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 11/08/2016] [Accepted: 11/21/2016] [Indexed: 12/13/2022]
Abstract
Protein disulfide isomerases are thiol oxidoreductase chaperones from thioredoxin superfamily. As redox folding catalysts from the endoplasmic reticulum (ER), their roles in ER-related redox homeostasis and signaling are well-studied. PDIA1 exerts thiol oxidation/reduction and isomerization, plus chaperone effects. Also, substantial evidence indicates that PDIs regulate thiol-disulfide switches in other cell locations such as cell surface and possibly cytosol. Subcellular PDI translocation routes remain unclear and seem Golgi-independent. The list of signaling and structural proteins reportedly regulated by PDIs keeps growing, via thiol switches involving oxidation, reduction and isomerization, S-(de)nytrosylation, (de)glutathyonylation and protein oligomerization. PDIA1 is required for agonist-triggered Nox NADPH oxidase activation and cell migration in vascular cells and macrophages, while PDIA1-dependent cytoskeletal regulation appears a converging pathway. Extracellularly, PDIs crucially regulate thiol redox signaling of thrombosis/platelet activation, e.g., integrins, and PDIA1 supports expansive caliber remodeling during injury repair via matrix/cytoskeletal organization. Some proteins display regulatory PDI-like motifs. PDI effects are orchestrated by expression levels or post-translational modifications. PDI is redox-sensitive, although probably not a mass-effect redox sensor due to kinetic constraints. Rather, the "all-in-one" organization of its peculiar redox/chaperone properties likely provide PDIs with precision and versatility in redox signaling, making them promising therapeutic targets.
Collapse
Affiliation(s)
- Ana Iochabel Soares Moretti
- Vascular Biology Laboratory, Heart Institute (InCor), University of São Paulo, School of Medicine, São Paulo, Brazil
| | | |
Collapse
|