کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5857937 1562154 2016 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Differential epigenetic effects of chlorpyrifos and arsenic in proliferating and differentiating human neural progenitor cells
ترجمه فارسی عنوان
اثرات اپی ژنتیکی دیفرانسیل کلرپیریفوس و آرسنیک در تکثیر و تمایز سلول های پیش گیاه عصبی انسان
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست بهداشت، سم شناسی و جهش زایی
چکیده انگلیسی


- We evaluated histone modifications in hNPC exposed to chlorpyrifos or arsenic.
- Differentiation status influences histone modifications with chlorpyrifos exposure.
- Differentiation status influences histone modifications with arsenic exposure.
- Protein expression levels of differentiation markers influenced by arsenic.
- Protein expression levels of differentiation markers influenced by chlorpyrifos.

Understanding the underlying temporal and mechanistic responses to neurotoxicant exposures during sensitive periods of neuronal development are critical for assessing the impact of these exposures on developmental processes. To investigate the importance of timing of neurotoxicant exposure for perturbation of epigenetic regulation, we exposed human neuronal progenitor cells (hNPCs) to chlorpyrifos (CP) and sodium arsenite (As; positive control) during proliferation and differentiation. CP or As treatment effects on hNPCs morphology, cell viability, and changes in protein expression levels of neural differentiation and cell stress markers, and histone H3 modifications were examined. Cell viability, proliferation/differentiation status, and epigenetic results suggest that hNPCs cultures respond to CP and As treatment with different degrees of sensitivity. Histone modifications, as measured by changes in histone H3 phosphorylation, acetylation and methylation, varied for each toxicant and growth condition, suggesting that differentiation status can influence the epigenetic effects of CP and As exposures.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reproductive Toxicology - Volume 65, October 2016, Pages 212-223
نویسندگان
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