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Hutson MR, Keyte AL, Hernández-Morales M, Gibbs E, Kupchinsky ZA, Argyridis I, Erwin KN, Pegram K, Kneifel M, Rosenberg PB, Matak P, Xie L, Grandl J, Davis EE, Katsanis N, Liu C, Benner EJ. Temperature-activated ion channels in neural crest cells confer maternal fever-associated birth defects. Sci Signal 2017; 10:10/500/eaal4055. [PMID: 29018170 DOI: 10.1126/scisignal.aal4055] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Birth defects of the heart and face are common, and most have no known genetic cause, suggesting a role for environmental factors. Maternal fever during the first trimester is an environmental risk factor linked to these defects. Neural crest cells are precursor populations essential to the development of both at-risk tissues. We report that two heat-activated transient receptor potential (TRP) ion channels, TRPV1 and TRPV4, were present in neural crest cells during critical windows of heart and face development. TRPV1 antagonists protected against the development of hyperthermia-induced defects in chick embryos. Treatment with chemical agonists of TRPV1 or TRPV4 replicated hyperthermia-induced birth defects in chick and zebrafish embryos. To test whether transient TRPV channel permeability in neural crest cells was sufficient to induce these defects, we engineered iron-binding modifications to TRPV1 and TRPV4 that enabled remote and noninvasive activation of these channels in specific cellular locations and at specific developmental times in chick embryos with radio-frequency electromagnetic fields. Transient stimulation of radio frequency-controlled TRP channels in neural crest cells replicated fever-associated defects in developing chick embryos. Our data provide a previously undescribed mechanism for congenital defects, whereby hyperthermia activates ion channels that negatively affect fetal development.
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Affiliation(s)
- Mary R Hutson
- Division of Neonatology, Department of Pediatrics, Duke University Medical Center, Jean and George Brumley, Jr. Neonatal-Perinatal Institute, Durham, NC 27710, USA
| | - Anna L Keyte
- Division of Neonatology, Department of Pediatrics, Duke University Medical Center, Jean and George Brumley, Jr. Neonatal-Perinatal Institute, Durham, NC 27710, USA.,Brain Imaging and Analysis Center, Duke University School of Medicine, Durham, NC 27710, USA.,Department of Radiology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Miriam Hernández-Morales
- Brain Imaging and Analysis Center, Duke University School of Medicine, Durham, NC 27710, USA.,Department of Radiology, Duke University School of Medicine, Durham, NC 27710, USA.,Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, CA 94720, USA.,Helen Wills Neuroscience Institute, University of California, Berkeley, CA 94720, USA
| | - Eric Gibbs
- Brain Imaging and Analysis Center, Duke University School of Medicine, Durham, NC 27710, USA.,Department of Radiology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Zachary A Kupchinsky
- Center for Human Disease Modeling, Duke University Medical Center, Durham, NC 27710, USA
| | - Ioannis Argyridis
- Brain Imaging and Analysis Center, Duke University School of Medicine, Durham, NC 27710, USA.,Department of Radiology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Kyle N Erwin
- Division of Neonatology, Department of Pediatrics, Duke University Medical Center, Jean and George Brumley, Jr. Neonatal-Perinatal Institute, Durham, NC 27710, USA
| | - Kelly Pegram
- Division of Neonatology, Department of Pediatrics, Duke University Medical Center, Jean and George Brumley, Jr. Neonatal-Perinatal Institute, Durham, NC 27710, USA
| | - Margaret Kneifel
- Brain Imaging and Analysis Center, Duke University School of Medicine, Durham, NC 27710, USA.,Department of Radiology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Paul B Rosenberg
- Department of Medicine, Duke University School of Medicine, Durham, NC 27710, USA
| | - Pavle Matak
- Department of Pharmacology and Cancer Biology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Luke Xie
- Brain Imaging and Analysis Center, Duke University School of Medicine, Durham, NC 27710, USA.,Department of Radiology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Jörg Grandl
- Department of Neurobiology, Duke University Medical Center, Durham, NC 27710, USA
| | - Erica E Davis
- Center for Human Disease Modeling, Duke University Medical Center, Durham, NC 27710, USA
| | - Nicholas Katsanis
- Center for Human Disease Modeling, Duke University Medical Center, Durham, NC 27710, USA
| | - Chunlei Liu
- Brain Imaging and Analysis Center, Duke University School of Medicine, Durham, NC 27710, USA. .,Department of Radiology, Duke University School of Medicine, Durham, NC 27710, USA.,Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, CA 94720, USA.,Helen Wills Neuroscience Institute, University of California, Berkeley, CA 94720, USA
| | - Eric J Benner
- Division of Neonatology, Department of Pediatrics, Duke University Medical Center, Jean and George Brumley, Jr. Neonatal-Perinatal Institute, Durham, NC 27710, USA.
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Homocysteine induced SH-SY5Y apoptosis through activation of NADPH oxidase in U251MG cells. Neurosci Res 2011; 72:9-15. [PMID: 22001762 DOI: 10.1016/j.neures.2011.09.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2011] [Revised: 09/14/2011] [Accepted: 09/29/2011] [Indexed: 11/23/2022]
Abstract
Epidemiological studies have indicated a correlation between homocysteinemia and dementia, including Alzheimer's disease. However, the mechanism by which homocysteine (Hcy) induces neuronal cell death remains unknown. We found that micromolar concentrations of Hcy induced neuroblastoma SH-SY5Y cell death only when co-cultured with glioblastoma U251MG cells. In this culture system, cysteine had no effect on SH-SY5Y cell death. There was an increase in TUNEL-positive cells and loss of mitochondrial membrane potential following treatment with 100 μM Hcy. Addition of conditioned medium prepared from U251MG cells in the presence of 100 μM Hcy also reduced SH-SY5Y cell viability, while this effect was prevented when using conditioned medium from U251MG cells exposed to 100 μM Hcy+apocynin, a specific NADPH oxidase inhibitor. Following exposure to 100 μM Hcy in U251MG cells, expression of Rac1, a compartment of NADPH oxidase, was translocated to the plasma membrane, and the active form of Rac1 was increased. There was no change in peroxide concentration in the medium of U251MG cells after addition of Hcy. Overall, these data suggest that Hcy stimulates Rac1 activation and NADPH oxidase, resulting in superoxide anion production that may induce SH-SY5Y cell apoptosis.
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Mayanil CS, Ichi S, Farnell BM, Boshnjaku V, Tomita T, McLone DG. Maternal intake of folic acid and neural crest stem cells. VITAMINS AND HORMONES 2011; 87:143-73. [PMID: 22127242 DOI: 10.1016/b978-0-12-386015-6.00028-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Maternal folic acid (FA) intake has beneficial effects in preventing neural tube defects and may also play a role in the prevention of adult onset diseases such as Alzheimer's disease, dementia, neuropsychiatric disorders, cardiovascular diseases, and cerebral ischemia. This review will focus on the effects of maternal FA intake on neural crest stem cell proliferation and differentiation. Although FA is generally considered beneficial, it has the potential of promoting cell proliferation at the expense of differentiation. In some situations, this may lead to miscarriage or postnatal developmental abnormalities. Therefore, a blind approach such as "FA for everyone" is not necessarily the best course of action. Ultimately, the best approach for FA supplementation, and potentially other nutritional supplements, will include customized patient genomic profiles for determining dose and duration.
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Affiliation(s)
- Chandra S Mayanil
- Developmental Biology Program, Children's Memorial Research Center, Department of Pediatric Neurosurgery, Children's Memorial Medical Center and Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
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