کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5507109 1536899 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Adult human dermal fibroblasts exposed to nanosecond electrical pulses exhibit genetic biomarkers of mechanical stress
ترجمه فارسی عنوان
فیبروبلاست های پوستی بالغ در معرض پالس های الکتریکی نانوذره ای نشانگر زیستی ژنتیکی فشارهای مکانیکی
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
چکیده انگلیسی


- Global gene expression analysis was performed on primary cells exposed to nsEP.
- The bioeffects of nsEP on adult human dermal fibroblasts were investigated.
- Microarray analysis suggests nsEP imparts a mechanical stress on cells.
- FOS, NR4A2, ITPKB, KLHL24, and SOD2 were upregulated in response to nsEP.

BackgroundExposure of cells to very short (<1 µs) electric pulses in the megavolt/meter range have been shown to cause a multitude of effects, both physical and molecular in nature. Physically, nanosecond electrical pulses (nsEP) can cause disruption of the plasma membrane, cellular swelling, shrinking and blebbing. Molecularly, nsEP have been shown to activate signaling pathways, produce oxidative stress, stimulate hormone secretion and induce both apoptotic and necrotic death. We hypothesize that studying the genetic response of primary human dermal fibroblasts exposed to nsEP, will gain insight into the molecular mechanism(s) either activated directly by nsEP, or indirectly through electrophysiology interactions.MethodsMicroarray analysis in conjunction with quantitative real time polymerase chain reaction (qRT-PCR) was used to screen and validate genes selectively upregulated in response to nsEP exposure.ResultsExpression profiles of 486 genes were found to be significantly changed by nsEP exposure. 50% of the top 20 responding genes coded for proteins located in two distinct cellular locations, the plasma membrane and the nucleus. Further analysis of five of the top 20 upregulated genes indicated that the HDFa cells' response to nsEP exposure included many elements of a mechanical stress response.ConclusionsWe found that several genes, some of which are mechanosensitive, were selectively upregulated due to nsEP exposure. This genetic response appears to be a primary response to the stimuli and not a secondary response to cellular swelling.General significanceThis work provides strong evidence that cells exposed to nsEP interpret the insult as a mechanical stress.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemistry and Biophysics Reports - Volume 9, March 2017, Pages 302-309
نویسندگان
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