Primary amnion cells at 50% confluence were transfected with 100nmol/L using SilenceMag reagent for 48H.
This article highlights the capacity of Magnetofection technology to efficiently silence gene expression into primary amnion epithelial cells with siRNA using SilenceMag from OZ Biosciences.article reference: Reprod Sci. 2014 Jan 15.
Class I to III Histone Deacetylases Differentially Regulate Inflammation-Induced Matrix Metalloproteinase 9 Expression in Primary Amnion Cells.
Abstract
Matrix
metalloproteinase (MMP) 9 plays an important role in the degradation of
the extracellular matrix in fetal membranes, and pathological activation
of MMP-9 can lead to preterm birth. In nongestational tissues,
modulation of histone deacetylases (HDACs) regulates MMP-9 expression.
The aim of this study was to determine whether class I to III HDACs
regulate MMP-9 expression and activity in primary amnion cells. Class I
and II HDAC regulation of MMP-9 was assessed using the general class I
and II HDAC inhibitors (HDACi) trichostatin A (TSA) and suberoylanilide
hydroxamic acid (SAHA), the class I HDACi MS-275, and the class II HDACi
MC1568. Class III HDAC regulation of MMP-9 was assessed using the SIRT1
activators resveratrol and SRT1720 as well as SIRT1 small interfering
RNA (siRNA). Primary amnion epithelial cells were incubated with 1 ng/mL
interleukin (IL) 1β in the absence or presence of 0.3 μmol/L TSA, 5
μmol/L SAHA, 2.5 μmol/L MS-275, 2.5 μmol/L MC1568, 50 μmol/L
resveratrol, or 10 μmol/L SRT1720 for 20 hours. We found that the class I
and II HDACi TSA and SAHA and the class II HDACi MC1568 significantly
decreased IL-β-induced MMP-9 gene and pro-MMP-9 expression in primary
amnion cells. There was, however, no effect of the class I HDACi MS-275
on IL-β-induced MMP-9 expression. On the other hand, inhibition of class
III HDAC SIRT1 using siRNA significantly augmented IL-1β-induced MMP-9,
and SIRT1 activation using resveratrol and SRT1720 inhibited
IL-1β-induced MMP-9 expression. In summary, class I to III HDACs
differentially regulate inflammation-induced MMP-9 expression in primary
amnion cells.
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