1
|
Peng C, den Dekker M, Cardenas A, Rifas-Shiman SL, Gibson H, Agha G, Harris MH, Coull BA, Schwartz J, Litonjua AA, DeMeo DL, Hivert MF, Gilman MW, Sagiv SK, de Kluizenaar Y, Felix JF, Jaddoe VW, Oken E, Duijts L, Gold DR, Baccarelli AA. Residential Proximity to Major Roadways at Birth, DNA Methylation at Birth and Midchildhood, and Childhood Cognitive Test Scores: Project Viva(Massachusetts, USA). ENVIRONMENTAL HEALTH PERSPECTIVES 2018; 126:97006. [PMID: 30226399 PMCID: PMC6375460 DOI: 10.1289/ehp2034] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 08/06/2018] [Accepted: 08/15/2018] [Indexed: 05/23/2023]
Abstract
BACKGROUND Epigenetic variability is hypothesized as a regulatory pathway through which prenatal exposures may influence child development and health. OBJECTIVE We sought to examine the associations of residential proximity to roadways at birth and epigenome-wide DNA methylation. We also assessed associations of differential methylation with child cognitive outcomes. METHODS We estimated residential proximity to roadways at birth using a geographic information system (GIS) and cord blood methylation using Illumina's HumanMethylation450-array in 482 mother-child pairs in Project Viva. We identified individual CpGs associated with residential-proximity-to-roadways at birth using robust linear regression [[Formula: see text]]. We also estimated association between proximity-to-roadways at birth and methylation of the same sites in blood samples collected at age 7-11 y ([Formula: see text]). We ran the same analyses in the Generation R Study for replication ([Formula: see text]). In Project Viva, we investigated associations of differential methylation at birth with midchildhood cognition using linear regression. RESULTS Living closer to major roadways at birth was associated with higher cord blood (and-more weakly-midchildhood blood) methylation of four sites in LAMB2. For each halving of residential-proximity-to-major-roadways, we observed a 0.82% increase in DNA methylation at cg05654765 [95% confidence interval (CI): (0.54%, 1.10%)], 0.88% at cg14099457 [95% CI: (0.56%, 1.19%)], 0.19% at cg03732535 [95% CI: (0.11%, 0.28)], and 1.08% at cg02954987 [95% CI: (0.65%, 1.51%)]. Higher cord blood methylation of these sites was associated with lower midchildhood nonverbal cognitive scores. Our results did not replicate in the Generation R Study. CONCLUSIONS Our discovery results must be interpreted with caution, given that they were not replicated in a separate cohort. However, living close to major roadways at birth was associated with cord blood methylation of sites in LAMB2-a gene known to be linked to axonal development-in our U.S. cohort. Higher methylation of these sites associated with lower nonverbal cognitive scores at age 7-11 y in the same children. https://doi.org/10.1289/EHP2034.
Collapse
Affiliation(s)
- Cheng Peng
- 1 Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School , Boston, Massachusetts, USA
| | - Martijn den Dekker
- 2 The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam , Rotterdam, Netherlands
- 3 Department of Pediatrics, Division of Respiratory Medicine and Allergology, Erasmus MC, University Medical Center Rotterdam , Rotterdam, Netherlands
- 4 Department of Epidemiology, Erasmus MC, University Medical Center Rotterdam , Rotterdam, Netherlands
| | - Andres Cardenas
- 5 Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute , Boston, Massachusetts, USA
| | - Sheryl L Rifas-Shiman
- 5 Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute , Boston, Massachusetts, USA
| | - Heike Gibson
- 6 Department of Environmental Health, Harvard T. H. Chan School of Public Health , Boston, Massachusetts, USA
| | - Golareh Agha
- 7 Department of Environmental Health Sciences, Columbia University Mailman School of Public Health , New York, USA
| | - Maria H Harris
- 8 Department of Epidemiology, University of California, Berkeley School of Public Health , Berkeley, California, USA
| | - Brent A Coull
- 9 Department of Biostatistics, Harvard T.H Chan School of Public Health , Boston, Massachusetts, USA
| | - Joel Schwartz
- 1 Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School , Boston, Massachusetts, USA
- 6 Department of Environmental Health, Harvard T. H. Chan School of Public Health , Boston, Massachusetts, USA
| | - Augusto A Litonjua
- 1 Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School , Boston, Massachusetts, USA
| | - Dawn L DeMeo
- 1 Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School , Boston, Massachusetts, USA
| | - Marie-France Hivert
- 5 Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute , Boston, Massachusetts, USA
- 10 Diabetes Unit, Massachusetts General Hospital , Boston, Massachusetts, USA
| | - Matthew W Gilman
- 5 Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute , Boston, Massachusetts, USA
- 11 Environmental Influences on Child Health Outcomes (ECHO) Program, Office of the Director , National Institutes of Health , Bethesda, Maryland, USA
| | - Sharon K Sagiv
- 8 Department of Epidemiology, University of California, Berkeley School of Public Health , Berkeley, California, USA
| | - Yvonne de Kluizenaar
- 12 The Netherlands Organization for Applied Scientific Research (TNO) , Delft, Netherlands
| | - Janine F Felix
- 2 The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam , Rotterdam, Netherlands
- 4 Department of Epidemiology, Erasmus MC, University Medical Center Rotterdam , Rotterdam, Netherlands
- 13 Department of Pediatrics, Erasmus MC, University Medical Center Rotterdam , Rotterdam, Netherlands
| | - Vincent W Jaddoe
- 2 The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam , Rotterdam, Netherlands
- 4 Department of Epidemiology, Erasmus MC, University Medical Center Rotterdam , Rotterdam, Netherlands
- 13 Department of Pediatrics, Erasmus MC, University Medical Center Rotterdam , Rotterdam, Netherlands
| | - Emily Oken
- 5 Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute , Boston, Massachusetts, USA
| | - Liesbeth Duijts
- 2 The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam , Rotterdam, Netherlands
- 3 Department of Pediatrics, Division of Respiratory Medicine and Allergology, Erasmus MC, University Medical Center Rotterdam , Rotterdam, Netherlands
- 14 Department of Pediatrics, Division of Neonatology, Erasmus MC, University Medical Center Rotterdam , Rotterdam, Netherlands
| | - Diane R Gold
- 1 Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School , Boston, Massachusetts, USA
- 6 Department of Environmental Health, Harvard T. H. Chan School of Public Health , Boston, Massachusetts, USA
| | - Andrea A Baccarelli
- 1 Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School , Boston, Massachusetts, USA
- 7 Department of Environmental Health Sciences, Columbia University Mailman School of Public Health , New York, USA
| |
Collapse
|
5
|
Rohwedel J, Kleppisch T, Pich U, Guan K, Jin S, Zuschratter W, Hopf C, Hoch W, Hescheler J, Witzemann V, Wobus AM. Formation of postsynaptic-like membranes during differentiation of embryonic stem cells in vitro. Exp Cell Res 1998; 239:214-25. [PMID: 9521839 DOI: 10.1006/excr.1997.3903] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
To analyze the formation of neuromuscular junctions, mouse pluripotent embryonic stem (ES) cells were differentiated via embryoid bodies into skeletal muscle and neuronal cells. The developmentally controlled expression of skeletal muscle-specific genes coding for myf5, myogenin, myoD and myf6, alpha 1 subunit of the L-type calcium channel, cell adhesion molecule M-cadherin, and neuron-specific genes encoding the 68-, 160-, and 200-kDa neurofilament proteins, synaptic vesicle protein synaptophysin, brain-specific proteoglycan neurocan, and microtubule-associated protein tau was demonstrated by RT-PCR analysis. In addition, genes specifically expressed at neuromuscular junctions, the gamma- and epsilon-subunits of the nicotinic acetylcholine receptor (AChR) and the extracellular matrix protein S-laminin, were found. At the terminal differentiation stage characterized by the formation of multinucleated spontaneously contracting myotubes, the myogenic regulatory gene myf6 and the AChR epsilon-subunit gene, both specifically expressed in mature adult skeletal muscle, were found to be coexpressed. Only the terminally differentiated myotubes showed a clustering of nicotinic acetylcholine receptors (AChR) and a colocalization with agrin and synaptophysin. The formation of AChRs was also demonstrated on a functional level by using the patch clamp technique. Taken together, our results showed that during ES cell differentiation in vitro neuron- and muscle-specific genes are expressed in a developmentally controlled manner, resulting in the formation of postsynaptic-like membranes. Thus, the embryonic stem cell differentiation model will be helpful for studying cellular interactions at neuromuscular junctions by "loss of function" analysis in vitro.
Collapse
Affiliation(s)
- J Rohwedel
- In Vitro Differentiation Group, IPK Gatersleben, Germany
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|