1
|
V RP, Finnell RH, Ross ME, Alarcón P, Suazo J. Neural tube defects and epigenetics: role of histone post-translational histone modifications. Epigenomics 2024; 16:419-426. [PMID: 38410929 DOI: 10.2217/epi-2023-0357] [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] [Indexed: 02/28/2024] Open
Abstract
Neural tube defects (NTDs) are the most common congenital anomalies of the CNS. It is widely appreciated that both genetic and environmental factors contribute to their etiology. The inability to ascribe clear genetic patterns of inheritance to various NTD phenotypes suggests it is possible that epigenetic mechanisms are involved in the etiology of NTDs. In this context, the contribution of DNA methylation as an underlying contributing factor to the etiology of NTDs has been extensively reviewed. Here, an updated accounting of the evidence linking post-translational histone modifications to these birth defects, relying heavily upon studies in humans, and the possible molecular implications inferred from reports based on cellular and animal models, are presented.
Collapse
Affiliation(s)
- Rosa Pardo V
- Section of Genetics, Hospital Clínico Universidad de Chile, Dr. Carlos Lorca Tobar #999, Santiago, Chile
- Unit of Neonatology, Hospital Clínico Universidad de Chile, Dr. Carlos Lorca Tobar #999, Santiago, Chile
| | - Richard H Finnell
- Center for Precision Environmental Health, Department of Molecular & Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX, USA
| | - M Elizabeth Ross
- Center for Neurogenetics, Feil Family Brain & Mind Research Institute, Weill Cornell Medicine, 407 East 61st Street, NY, USA
| | - Pablo Alarcón
- Section of Genetics, Hospital Clínico Universidad de Chile, Dr. Carlos Lorca Tobar #999, Santiago, Chile
- Section of Genetics, Hospital Sótero del Río, Avenida Concha y Toro #3459, Santiago, Chile
| | - José Suazo
- Institute for Research in Dental Sciences, School of Dentistry, Universidad de Chile, Olivos #943, Santiago, Chile
| |
Collapse
|
2
|
Shlobin NA, Yerkes EB, Swaroop VT, Lam S, McLone DG, Bowman RM. Multidisciplinary spina bifida clinic: the Chicago experience. Childs Nerv Syst 2022; 38:1675-1681. [PMID: 35870009 DOI: 10.1007/s00381-022-05594-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 06/23/2022] [Indexed: 11/03/2022]
Abstract
Open spina bifida (open SB) is the most complex congenital abnormality of the central nervous system compatible with long-term survival. Multidisciplinary care is required to address the effect of this disease on the neurological, musculoskeletal, genitourinary, and gastrointestinal systems, as well as the complex psychosocial impact on the developing child. Individuals with SB benefit from the involvement of neurosurgeons, orthopedic surgeons, urologists, physical medicine and rehabilitation specialists, pediatricians, psychologists, physical/occupational/speech therapists, social workers, nurse coordinators, and other personnel. Multidisciplinary clinics are the gold standard for coordinated, optimal medical and surgical care. Ann and Robert H. Lurie Children's Hospital, formerly known as Children's Memorial Hospital, was one of the first hospitals in the USA to manage patients with this complex disease in a multidisciplinary manner. We describe the longitudinal experience of the multidisciplinary Spina Bifida Center at our institution and highlight the advances that have arisen from this care model over time. This clinic serves as an exemplar of organized, effective, and patient-centered approach to the comprehensive care of people living with open SB.
Collapse
Affiliation(s)
- Nathan A Shlobin
- Department of Neurological Surgery, Division of Pediatric Neurosurgery, Ann & Robert H. Lurie Children's Hospital, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Elizabeth B Yerkes
- Department of Urology, Division of Pediatric Urology, Ann & Robert H. Lurie Children's Hospital, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Vineeta T Swaroop
- Department of Orthopedic Surgery, Division of Pediatric Orthopedic Surgery, Ann & Robert H. Lurie Children's Hospital, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Sandi Lam
- Department of Neurological Surgery, Division of Pediatric Neurosurgery, Ann & Robert H. Lurie Children's Hospital, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - David G McLone
- Department of Neurological Surgery, Division of Pediatric Neurosurgery, Ann & Robert H. Lurie Children's Hospital, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Robin M Bowman
- Department of Neurological Surgery, Division of Pediatric Neurosurgery, Ann & Robert H. Lurie Children's Hospital, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
| |
Collapse
|
3
|
Erol SA, Tanacan A, Firat Oguz E, Anuk AT, Goncu Ayhan S, Neselioglu S, Sahin D. A comparison of the maternal levels of serum proprotein convertase subtilisin/kexin type 9 in pregnant women with the complication of fetal open neural tube defects. Congenit Anom (Kyoto) 2021; 61:169-176. [PMID: 34128273 DOI: 10.1111/cga.12432] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 05/08/2021] [Accepted: 05/25/2021] [Indexed: 11/30/2022]
Abstract
It was aimed to evaluate the levels of maternal serum proprotein convertase subtilisin/kexin type 9 (PCSK9) in pregnant women with a fetus diagnosed with open neural tube defects (NTDs). This case-control study included 38 pregnant women carrying fetuses with open NTDs and 44 age-matched, pregnant women with no specified risk factors. Comparisons were made of the groups in respect of demographic and clinical data and PCSK9 levels. To examine the performance of PCSK9 levels in the prediction of fetal open NTDs, receiver operating characteristic (ROC) curve analysis was used. In the first and second trimesters, PCSK9 levels were determined to be lower in the NTD group than in the control group (p = 0.010 and p = 0.015, respectively). In the first trimester, the lower PCSK9 levels in the NTD group were not statistically significant (p = 0.575). In the second trimester, the ROC curve value with the best balance of sensitivity/specificity for PCSK9 was 71.9 ng/ml (84.6% sensitivity, 51.7% specificity) and in the first and second trimester combined, 74.4 ng/ml (81.6% sensitivity, 45.5% specificity) (p = 0.015, p = 0.036, respectively). PCSK9 may be involved in the etiopathogenesis of open NTDs at the critical steps of fetal neuronal differentiation. Although it has limitations, PCSK9 may be used as an additional biomarker for the screening of NTDs.
Collapse
Affiliation(s)
- Seyit Ahmet Erol
- Department of Perinatology, Turkish Ministry of Health, Ankara City Hospital, Ankara, Turkey
| | - Atakan Tanacan
- Department of Perinatology, Turkish Ministry of Health, Ankara City Hospital, Ankara, Turkey
| | - Esra Firat Oguz
- Department of Clinical Biochemistry, Turkish Ministry of Health, Ankara City Hospital, Ankara, Turkey
| | - Ali Taner Anuk
- Department of Perinatology, Turkish Ministry of Health, Ankara City Hospital, Ankara, Turkey
| | - Sule Goncu Ayhan
- Department of Perinatology, Turkish Ministry of Health, Ankara City Hospital, Ankara, Turkey
| | - Salim Neselioglu
- Department of Clinical Biochemistry, Turkish Ministry of Health, Ankara City Hospital, Ankara, Turkey.,Yildirim Beyazit University, Ankara, Turkey
| | - Dilek Sahin
- Department of Perinatology, University of Health Sciences, Turkish Ministry of Health, Ankara City Hospital, Ankara, Turkey
| |
Collapse
|
4
|
Clark DF, Schmelz R, Rogers N, Smith NE, Shorter KR. Acute high folic acid treatment in SH-SY5Y cells with and without MTHFR function leads to gene expression changes in epigenetic modifying enzymes, changes in epigenetic marks, and changes in dendritic spine densities. PLoS One 2021; 16:e0245005. [PMID: 33411826 PMCID: PMC7790414 DOI: 10.1371/journal.pone.0245005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 12/19/2020] [Indexed: 12/12/2022] Open
Abstract
Epigenetics are known to be involved in various disorders, including neurobiological disorders like autism. Dietary factors such as folic acid can affect epigenetic marks using methylenetetrahydrofolate reductase (MTHFR) to metabolize folic acid to a one-carbon methyl group. As MTHFR mutations are frequent, it is curious as to whether excess folic acid, with or without functioning MTHFR, could affect gene expression, epigenetics, and neuromorphology. Here, we investigated gene expression and activity of epigenetic modifying enzymes, genome-wide DNA methylation, histone 3 modifications, and dendritic spine densities in SH-SY5Y cells with or without a knockdown of MTHFR and with or without an excess of folic acid. We found alterations to gene expression of epigenetic modifying enzymes, including those associated with disorders like autism. Grouping the epigenetic modifying enzymes by function indicated that gene expression was widely affected for genes that code for enzymes affecting DNA methylation, histone acetylation, histone methylation, histone phosphorylation, and histone ubiquitination when excess folic acid treatment occurred with or without the knockdown of MTHFR. MTHFR was significantly reduced upon excess folic acid treatment whether MTHFR was knocked-down or not. Further, methyl-CpG binding protein 2 expression was significantly decreased with excess folic acid treatment with and without proper MTHFR expression. Global DNA methylation decreased due to the knockdown alone while global hydroxymethylated DNA increased due to the knockdown alone. TET2 expression significantly increased with the MTHFR knockdown alone. Excess folic acid alone induced a decrease in TET3 expression. Excess folic acid induced an increase in dendritic spines without the MTHFR knockdown, but folic acid induced a decrease in dendritic spines when MTHFR was knocked-down. The knockdown alone also increased the dendritic spines significantly. Histone 3 acetylation at lysine 18 was significantly increased when excess folic acid was applied to cells with the MTHFR knockdown, as was histone 3 phosphorylation at serine 10. Broadly, our results indicate that excess folic acid, even with functioning MTHFR, could have detrimental effects on cells.
Collapse
Affiliation(s)
- Daniel F. Clark
- Division of Natural Sciences and Engineering, University of South Carolina Upstate, Spartanburg, South Carolina, United States of America
| | - Rachael Schmelz
- Division of Natural Sciences and Engineering, University of South Carolina Upstate, Spartanburg, South Carolina, United States of America
| | - Nicole Rogers
- Division of Natural Sciences and Engineering, University of South Carolina Upstate, Spartanburg, South Carolina, United States of America
| | - Nuri E. Smith
- Division of Natural Sciences and Engineering, University of South Carolina Upstate, Spartanburg, South Carolina, United States of America
| | - Kimberly R. Shorter
- Division of Natural Sciences and Engineering, University of South Carolina Upstate, Spartanburg, South Carolina, United States of America
- * E-mail:
| |
Collapse
|
5
|
The Impact of Epigenetic Signatures on Amniotic Fluid Stem Cell Fate. Stem Cells Int 2018; 2018:4274518. [PMID: 30627172 PMCID: PMC6304862 DOI: 10.1155/2018/4274518] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 10/04/2018] [Indexed: 02/07/2023] Open
Abstract
Epigenetic modifications play a significant role in determining the fate of stem cells and in directing the differentiation into multiple lineages. Current evidence indicates that mechanisms involved in chromatin regulation are essential for maintaining stable cell identities. There is a tight correlation among DNA methylation, histone modifications, and small noncoding RNAs during the epigenetic control of stem cells' differentiation; however, to date, the precise mechanism is still not clear. In this context, amniotic fluid stem cells (AFSCs) represent an interesting model due to their unique features and the possible advantages of their use in regenerative medicine. Recent studies have elucidated epigenetic profiles involved in AFSCs' lineage commitment and differentiation. In order to use these cells effectively for therapeutic purposes, it is necessary to understand the basis of multiple-lineage potential and elaborate in detail how cell fate decisions are made and memorized. The present review summarizes the most recent findings on epigenetic mechanisms of AFSCs with a focus on DNA methylation, histone modifications, and microRNAs (miRNAs) and addresses how their unique signatures contribute to lineage-specific differentiation.
Collapse
|
6
|
Hauptman JS, Bollo R, Damerla R, Gibbs B, Lo C, Katz A, Greene S. Coincident myelomeningocele and gastroschisis: report of 2 cases. J Neurosurg Pediatr 2018. [PMID: 29521606 DOI: 10.3171/2017.11.peds17540] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Myelomeningocele and gastroschisis, on their own, are both relatively common entities encountered in pediatric surgical care. Coexistence of these pathologies, however, is exceedingly rare. The authors report on 2 patients who presented with myelomeningocele and gastroschisis at birth. They obtained blood for whole-exome analysis for one of the patients and identified 3 mutations that could be related to the underlying anomalies: homozygous mutations in FAM171B and ABCA1 and a hemizygous (X-linked) mutation in COL4A5. Of these, FAM171B and ABCA1 both have function that may be related to the underlying disease.
Collapse
Affiliation(s)
- Jason S Hauptman
- 1Department of Neurosurgery, Seattle Children's Hospital, Seattle, Washington
| | - Robert Bollo
- 2Department of Pediatric Neurosurgery, Primary Children's Medical Center, Salt Lake City, Utah
| | - Rama Damerla
- 3Department of Embryology, University of Pittsburgh; and Departments of
| | - Brian Gibbs
- 3Department of Embryology, University of Pittsburgh; and Departments of
| | - Cecilia Lo
- 3Department of Embryology, University of Pittsburgh; and Departments of
| | | | | |
Collapse
|
7
|
Histone Modifications Pattern Associated With a State of Mesenchymal Stem Cell Cultures Derived From Amniotic Fluid of Normal and Fetus‐Affected Gestations. J Cell Biochem 2017; 118:3744-3755. [DOI: 10.1002/jcb.26022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 03/30/2017] [Indexed: 12/17/2022]
|
8
|
Tauheed J, Sanchez-Guerra M, Lee JJ, Paul L, Ibne Hasan MOS, Quamruzzaman Q, Selhub J, Wright RO, Christiani DC, Coull BA, Baccarelli AA, Mazumdar M. Associations between post translational histone modifications, myelomeningocele risk, environmental arsenic exposure, and folate deficiency among participants in a case control study in Bangladesh. Epigenetics 2017; 12:484-491. [PMID: 28387569 DOI: 10.1080/15592294.2017.1312238] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Arsenic exposure may contribute to disease risk in humans through alterations in the epigenome. Previous studies reported that arsenic exposure is associated with changes in plasma histone concentrations. Posttranslational histone modifications have been found to differ between the brain tissue of human embryos with neural tube defects and that of controls. Our objectives were to investigate the relationships between plasma histone 3 levels, history of having an infant with myelomeningocele, biomarkers of arsenic exposure, and maternal folate deficiency. These studies took place in Bangladesh, a country with high environmental arsenic exposure through contaminated drinking water. We performed ELISA assays to investigate plasma concentration of total histone 3 (H3) and the histone modification H3K27me3. The plasma samples were collected from 85 adult women as part of a case-control study of arsenic and myelomeningocele risk in Bangladesh. We found significant associations between plasma %H3K27me3 levels and risk of myelomeningocele (P<0.05). Mothers with higher %H3K27me3 in their plasma had lower risk of having an infant with myelomeningocele (odds ratio: 0.91, 95% confidence interval: 0.84, 0.98). We also found that arsenic exposure, as estimated by arsenic concentration in toenails, was associated with lower total H3 concentrations in plasma, but only among women with folate deficiency (β = -9.99, standard error = 3.91, P=0.02). Our results suggest that %H3K27me3 in maternal plasma differs between mothers of infants with myelomeningocele and mothers of infants without myelomeningocele, and may be a marker for myelomeningocele risk. Women with folate deficiency may be more susceptible to the epigenetic effects of environmental arsenic exposure.
Collapse
Affiliation(s)
- Jannah Tauheed
- a Department of Environmental Health , Harvard T.H. Chan School of Public Health , Boston , MA , USA
| | - Marco Sanchez-Guerra
- a Department of Environmental Health , Harvard T.H. Chan School of Public Health , Boston , MA , USA.,b Department of Developmental Neurobiology , National Institute of Perinatology , Mexico City , Mexico
| | - Jane J Lee
- a Department of Environmental Health , Harvard T.H. Chan School of Public Health , Boston , MA , USA.,c Department of Neurology , Boston Children's Hospital , Boston , MA , USA
| | - Ligi Paul
- d Jean Mayer USDA Human Nutrition Research Center on Aging , Tufts University , Boston , MA , USA
| | | | | | - Jacob Selhub
- d Jean Mayer USDA Human Nutrition Research Center on Aging , Tufts University , Boston , MA , USA
| | - Robert O Wright
- f Department of Preventive Medicine , Icahn School of Medicine at Mount Sinai , New York , NY , USA
| | - David C Christiani
- a Department of Environmental Health , Harvard T.H. Chan School of Public Health , Boston , MA , USA
| | - Brent A Coull
- g Department of Biostatistics , Harvard T.H. Chan School of Public Health , Boston , MA , USA
| | - Andrea A Baccarelli
- h Department of Environmental Health Sciences , Columbia Mailman School of Public Health , New York , NY , USA
| | - Maitreyi Mazumdar
- a Department of Environmental Health , Harvard T.H. Chan School of Public Health , Boston , MA , USA.,c Department of Neurology , Boston Children's Hospital , Boston , MA , USA
| |
Collapse
|
9
|
Gardner NM, Riley RT, Showker JL, Voss KA, Sachs AJ, Maddox JR, Gelineau-van Waes JB. Elevated nuclear sphingoid base-1-phosphates and decreased histone deacetylase activity after fumonisin B1 treatment in mouse embryonic fibroblasts. Toxicol Appl Pharmacol 2016; 298:56-65. [PMID: 26905748 DOI: 10.1016/j.taap.2016.02.018] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 02/14/2016] [Accepted: 02/19/2016] [Indexed: 02/07/2023]
Abstract
Fumonisin B1 (FB1) is a mycotoxin produced by a common fungal contaminant of corn. Administration of FB1 to pregnant LM/Bc mice induces exencephaly in embryos, and ingestion of FB1-contaminated food during early pregnancy is associated with increased risk for neural tube defects (NTDs) in humans. FB1 inhibits ceramide synthase enzymes in sphingolipid biosynthesis, causing sphinganine (Sa) and bioactive sphinganine-1-phosphate (Sa1P) accumulation in blood, cells, and tissues. Sphingosine kinases (Sphk) phosphorylate Sa to form Sa1P. Upon activation, Sphk1 associates primarily with the plasma membrane, while Sphk2 is found predominantly in the nucleus. In cells over-expressing Sphk2, accumulation of Sa1P in the nuclear compartment inhibits histone deacetylase (HDAC) activity, causing increased acetylation of histone lysine residues. In this study, FB1 treatment in LM/Bc mouse embryonic fibroblasts (MEFs) resulted in significant accumulation of Sa1P in nuclear extracts relative to cytoplasmic extracts. Elevated nuclear Sa1P corresponded to decreased histone deacetylase (HDAC) activity and increased histone acetylation at H2BK12, H3K9, H3K18, and H3K23. Treatment of LM/Bc MEFs with a selective Sphk1 inhibitor, PF-543, or with ABC294640, a selective Sphk2 inhibitor, significantly reduced nuclear Sa1P accumulation after FB1, although Sa1P levels remained significantly increased relative to basal levels. Concurrent treatment with both PF-543 and ABC294640 prevented nuclear accumulation of Sa1P in response to FB1. Other HDAC inhibitors are known to cause NTDs, so these results suggest that FB1-induced disruption of sphingolipid metabolism leading to nuclear Sa1P accumulation, HDAC inhibition, and histone hyperacetylation is a potential mechanism for FB1-induced NTDs.
Collapse
Affiliation(s)
- Nicole M Gardner
- Department of Pharmacology, Creighton University School of Medicine, Omaha, NE 68178, United States.
| | - Ronald T Riley
- USDA-ARS, Toxicology and Mycotoxin Research Unit, Athens, GA 30605, United States
| | - Jency L Showker
- USDA-ARS, Toxicology and Mycotoxin Research Unit, Athens, GA 30605, United States
| | - Kenneth A Voss
- USDA-ARS, Toxicology and Mycotoxin Research Unit, Athens, GA 30605, United States
| | - Andrew J Sachs
- Department of Pharmacology, Creighton University School of Medicine, Omaha, NE 68178, United States
| | - Joyce R Maddox
- Department of Pharmacology, Creighton University School of Medicine, Omaha, NE 68178, United States
| | | |
Collapse
|
10
|
Gardner NM, Riley RT, Showker JL, Voss KA, Sachs AJ, Maddox JR, Gelineau-van Waes JB. Elevated Nuclear and Cytoplasmic FTY720-Phosphate in Mouse Embryonic Fibroblasts Suggests the Potential for Multiple Mechanisms in FTY720-Induced Neural Tube Defects. Toxicol Sci 2015; 150:161-8. [PMID: 26719367 DOI: 10.1093/toxsci/kfv321] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
FTY720 (fingolimod) is a U.S. Food and Drug Administration-approved drug to treat relapsing remitting multiple sclerosis. FTY720 treatment in pregnant inbred LM/Bc mice results in approximately 60% of embryos having a neural tube defect (NTD). Sphingosine kinases (Sphk1, Sphk2) phosphorylate FTY720 in vivo to form the bioactive metabolite FTY720-1-phosphate (FTY720-P). Cytoplasmic FTY720-P is an agonist for 4 of the 5 sphingosine-1-phosphate (S1P) receptors (S1P1, 3-5) and can also act as a functional antagonist of S1P1, whereas FTY720-P generated in the nucleus inhibits histone deacetylases (HDACs), leading to increased histone acetylation. This study demonstrates that treatment of LM/Bc mouse embryonic fibroblasts (MEFs) with FTY720 results in a significant accumulation of FTY720-P in both the cytoplasmic and nuclear compartments. Elevated nuclear FTY720-P is associated with decreased HDAC activity and increased histone acetylation at H3K18 and H3K23 in LM/Bc MEFs. Treatment of LM/Bc MEFs with FTY720 and a selective Sphk2 inhibitor, ABC294640, significantly reduces the amount of FTY720-P that accumulates in the nucleus. The data provide insight into the relative amounts of FTY720-P generated in the nuclear versus cytoplasmic subcellular compartments after FTY720 treatment and the specific Sphk isoforms involved. The results of this study suggest that FTY720-induced NTDs may involve multiple mechanisms, including: (1) sustained and/or altered S1P receptor activation and signaling by FTY720-P produced in the cytoplasm and (2) HDAC inhibition and histone hyperacetylation by FTY720-P generated in the nucleus that could lead to epigenetic changes in gene regulation.
Collapse
Affiliation(s)
- Nicole M Gardner
- *Department of Pharmacology, Creighton University School of Medicine, Omaha, Nebraska 68178 and
| | - Ronald T Riley
- USDA-ARS, Toxicology and Mycotoxin Research Unit, Athens, Georgia 30605
| | - Jency L Showker
- USDA-ARS, Toxicology and Mycotoxin Research Unit, Athens, Georgia 30605
| | - Kenneth A Voss
- USDA-ARS, Toxicology and Mycotoxin Research Unit, Athens, Georgia 30605
| | - Andrew J Sachs
- *Department of Pharmacology, Creighton University School of Medicine, Omaha, Nebraska 68178 and
| | - Joyce R Maddox
- *Department of Pharmacology, Creighton University School of Medicine, Omaha, Nebraska 68178 and
| | | |
Collapse
|
11
|
Egloff A, Bulas D. Magnetic Resonance Imaging Evaluation of Fetal Neural Tube Defects. Semin Ultrasound CT MR 2015; 36:487-500. [DOI: 10.1053/j.sult.2015.06.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
12
|
Ceccarelli G, Pozzo E, Scorletti F, Benedetti L, Cusella G, Ronzoni FL, Sahakyan V, Zambaiti E, Mimmi MC, Calcaterra V, Deprest J, Sampaolesi M, Pelizzo G. Molecular signature of amniotic fluid derived stem cells in the fetal sheep model of myelomeningocele. J Pediatr Surg 2015; 50:1521-7. [PMID: 26026346 DOI: 10.1016/j.jpedsurg.2015.04.014] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Revised: 02/23/2015] [Accepted: 04/15/2015] [Indexed: 02/01/2023]
Abstract
Abnormal cord development results in spinal cord damage responsible for myelomeningocele (MMC). Amniotic fluid-derived stem cells (AFSCs) have emerged as a potential candidate for applications in regenerative medicine. However, their differentiation potential is largely unknown as well as the molecular signaling orchestrating the accurate spinal cord development. Fetal lambs underwent surgical creation of neural tube defect and its subsequent repair. AFSCs were isolated, cultured and characterized at the 12th (induction of MMC), 16th (repair of malformation), and 20th week of gestation (delivery). After performing open hysterectomy, AF collections on fetuses with sham procedures at the same time points as the MMC creation group have been used as controls. Cytological analyses with the colony forming unit assay, XTT and alkaline-phosphatase staining, qRT-PCR gene expression analyses (normalized with aged match controls) and NMR metabolomics profiling were performed. Here we show for the first time the metabolomics and molecular signature variation in AFSCs isolated in the sheep model of MMC, which may be used as diagnostic tools for the in utero identification of the neural tube damage. Intriguingly, PAX3 gene involved in the murine model for spina bifida is modulated in AFSCs reaching the peak of expression at 16 weeks of gestation, 4 weeks after the intervention. Our data strongly suggest that AFSCs reorganize their differentiation commitment in order to generate PAX3-expressing progenitors to counteract the MMC induced in the sheep model. The gene expression signature of AFSCs highlights the plasticity of these cells reflecting possible alterations of embryonic development.
Collapse
Affiliation(s)
- Gabriele Ceccarelli
- Department of Public Health, Experimental and Forensic Medicine, Division of Human Anatomy, University of Pavia, Pavia, Italy
| | - Enrico Pozzo
- Department of Public Health, Experimental and Forensic Medicine, Division of Human Anatomy, University of Pavia, Pavia, Italy; Department of Development and Reproduction, Stem Cell Institute, Translational Cardiomyology Laboratory, KU Leuven, Leuven, Belgium
| | - Federico Scorletti
- Department of Maternal and Children's Health, Paediatric Surgery Unit, Fondazione IRCCS Policlinico San Matteo and University of Pavia, Pavia, Italy
| | - Laura Benedetti
- Department of Public Health, Experimental and Forensic Medicine, Division of Human Anatomy, University of Pavia, Pavia, Italy
| | - Gabriella Cusella
- Department of Public Health, Experimental and Forensic Medicine, Division of Human Anatomy, University of Pavia, Pavia, Italy
| | - Flavio Lorenzo Ronzoni
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Vardine Sahakyan
- Department of Development and Reproduction, Stem Cell Institute, Translational Cardiomyology Laboratory, KU Leuven, Leuven, Belgium
| | - Elisa Zambaiti
- Department of Maternal and Children's Health, Paediatric Surgery Unit, Fondazione IRCCS Policlinico San Matteo and University of Pavia, Pavia, Italy
| | - Maria Chiara Mimmi
- Department of Medical and Biological Sciences, University of Udine, Udine, Italy
| | - Valeria Calcaterra
- Department of Internal Medicine, University of Pavia and Department of Maternal and Children's Health, Paediatric Endocrinology and Diabetes Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Jan Deprest
- Department Development and Regeneration, Organ System Cluster and Stem Cell Institute, Group Biomedical Sciences and Division Woman and Child, University Hospitals Leuven, KU Leuven, Leuven, Belgium
| | - Maurilio Sampaolesi
- Department of Public Health, Experimental and Forensic Medicine, Division of Human Anatomy, University of Pavia, Pavia, Italy; Department of Development and Reproduction, Stem Cell Institute, Translational Cardiomyology Laboratory, KU Leuven, Leuven, Belgium.
| | - Gloria Pelizzo
- Department of Maternal and Children's Health, Paediatric Surgery Unit, Fondazione IRCCS Policlinico San Matteo and University of Pavia, Pavia, Italy
| |
Collapse
|
13
|
Puvirajesinghe TM, Borg JP. Neural tube defects: from a proteomic standpoint. Metabolites 2015; 5:164-83. [PMID: 25789708 PMCID: PMC4381295 DOI: 10.3390/metabo5010164] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Revised: 02/08/2015] [Accepted: 03/04/2015] [Indexed: 12/16/2022] Open
Abstract
Neural tube defects (NTDs) are congenital birth defects classified according to their resulting morphological characteristics in newborn patients. Current diagnosis of NTDs relies largely on the structural evaluation of fetuses using ultrasound imaging, with biochemical characterization used as secondary screening tools. The multigene etiology of NTDs has been aided by genetic studies, which have discovered panels of genes mutated in these diseases that encode receptors and cytoplasmic signaling molecules with poorly defined functions. Animal models ranging from flies to mice have been used to determine the function of these genes and identify their associated molecular cascades. More emphasis is now being placed on the identification of biochemical markers from clinical samples and model systems based on mass spectrometry, which open novel avenues in the understanding of NTDs at protein, metabolic and molecular levels. This article reviews how the use of proteomics can push forward the identification of novel biomarkers and molecular networks implicated in NTDs, an indispensable step in the improvement of patient management.
Collapse
Affiliation(s)
- Tania M Puvirajesinghe
- CRCM, Cell Polarity, Cell signalling and Cancer, Equipe labellisée Ligue Contre le Cancer, Inserm, U1068, Marseille F-13009, France.
- Institut Paoli-Calmettes, Marseille F-13009, France.
- Aix-Marseille University, F-13284 Marseille, France.
- The National Center for Scientific Research, CNRS, UMR7258, F-13009, France.
| | - Jean-Paul Borg
- CRCM, Cell Polarity, Cell signalling and Cancer, Equipe labellisée Ligue Contre le Cancer, Inserm, U1068, Marseille F-13009, France.
- Institut Paoli-Calmettes, Marseille F-13009, France.
- Aix-Marseille University, F-13284 Marseille, France.
- The National Center for Scientific Research, CNRS, UMR7258, F-13009, France.
| |
Collapse
|
14
|
Fueyo R, García MA, Martínez-Balbás MA. Jumonji family histone demethylases in neural development. Cell Tissue Res 2014; 359:87-98. [PMID: 24950624 DOI: 10.1007/s00441-014-1924-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Accepted: 05/15/2014] [Indexed: 10/25/2022]
Abstract
Central nervous system (CNS) development is driven by coordinated actions of developmental signals and chromatin regulators that precisely regulate gene expression patterns. Histone methylation is a regulatory mechanism that controls transcriptional programs. In the last 10 years, several histone demethylases (HDM) have been identified as important players in neural development, and their implication in cell fate decisions is beginning to be recognized. Identification of the physiological roles of these enzymes and their molecular mechanisms of action will be necessary for completely understanding the process that ultimately generates different neural cells in the CNS. In this review, we provide an overview of the Jumonji family of HDMs involved in neurodevelopment, and we discuss their roles during neural fate establishment and neuronal differentiation.
Collapse
Affiliation(s)
- Raquel Fueyo
- Department of Molecular Genomics, Instituto de Biología Molecular de Barcelona (IBMB), Consejo Superior de Investigaciones Científicas (CSIC), Parc Científic de Barcelona (PCB), Barcelona, 08028, Spain
| | | | | |
Collapse
|