Synthesis, Cell Viability, and Flow Cytometric Fluorescence Pulse Width Analysis of Dendrimers with Indazoles Surface Unit

2017 ◽  
Vol 54 (6) ◽  
pp. 3042-3050
Author(s):  
Mani Jayanthi ◽  
Perumal Rajakumar
2010 ◽  
Vol 32 (8) ◽  
pp. 1045-1052 ◽  
Author(s):  
Kyungsu Kang ◽  
Saet Byoul Lee ◽  
Ji-Hye Yoo ◽  
Chu Won Nho

2020 ◽  
Vol 42 (5-6) ◽  
pp. 187-194
Author(s):  
Ruixiang Li ◽  
Jiahua Hu ◽  
Sue Cao

Temporal lobe epilepsy (TLE) is the most familiar localized epilepsy in children. MicroRNAs (miRNAs) are essential for the inhibition or promotion of numerous diseases. This study aimed to detect the expression of miR-135b-5p and primarily uncover its underlying function and mechanism in children with TLE. Quantitative real-time polymerase chain reaction was used to evaluate the expression of miR-135b-5p in children with TLE and in a rat model of epilepsy. MTT assay and flow cytometric apoptosis assay were conducted to evaluate the effects of miR-135b-5p on cell viability and apoptosis. Additionally, the dual luciferase reporter assay was performed to confirm the direct target of miR-135b-5p. Our data showed that the expression of miR-135b-5p was significantly decreased in children with TLE and in the epileptic rat neuron model. The dysregulation of miR-135b-5p could serve as a promising diagnostic biomarker for children with TLE. The overexpression of miR-135b-5p moderated the adverse influence on cell viability and apoptosis induced by magnesium-free medium. SIRT1 was identified as a target gene of miR-135b-5p. These results proved that miR-135b-5p might serve as a potential diagnostic biomarker in children with TLE. Overexpression of miR-135b-5p alleviates the postepileptic influence on cell viability and apoptosis by targeting SIRT1.


2016 ◽  
Vol 36 (5) ◽  
pp. 0519001
Author(s):  
王波鹏 Wang Bopeng ◽  
粟敬钦 Su Jingqin ◽  
曾小明 Zeng Xiaoming ◽  
王晓东 Wang Xiaodong ◽  
王逍 Wang Xiao ◽  
...  

1988 ◽  
Vol 6 (4) ◽  
pp. 467-474 ◽  
Author(s):  
R. S. Bell ◽  
L. A. Bourret ◽  
D. F. Bell ◽  
M. C. Gebhardt ◽  
A. Rosenberg ◽  
...  

2018 ◽  
Vol 1019 ◽  
pp. 012012 ◽  
Author(s):  
Suhassni Ganeson ◽  
Muhammad Mahadi Abdul Jamil ◽  
Hassan Buhari Mamman ◽  
Nur Adilah Abd Rahman

Cytometry ◽  
1987 ◽  
Vol 8 (4) ◽  
pp. 421-426 ◽  
Author(s):  
Deborah L. Berglund ◽  
Rolf E. Taffs ◽  
Nancy P. Robertson

2019 ◽  
Vol 37 (1) ◽  
Author(s):  
Harrison J. Wensley ◽  
David A. Johnston ◽  
Wendy S. Smith ◽  
Suzanne E. Holmes ◽  
Sopsamorn U. Flavell ◽  
...  

Abstract Purpose The aim of this work was to develop a quantitative, flow cytometric method for tracking the endolysosomal escape of a fluorescently labelled saporin toxin. Methods Flow cytometric measurements of fluorescent pulse width and height were used to track the endocytic uptake into Daudi cells of a fluorescently labelled saporin toxin and the saporin based immunotoxin, OKT10-SAP. Subsequently, measurement of changes in pulse width were used to investigate the effect of a triterpenoid saponin on the endolysosomal escape of internalised toxin into the cytosol. Live cell confocal microscopy was used to validate the flow cytometry data. Results Increased endolysosomal escape of saporin and OKT10-SAP was observed by confocal microscopy in cells treated with saponin. Fluorescent pulse width measurements were also able to detect and quantify escape more sensitively than confocal microscopy. Saponin induced endolysosomal escape could be abrogated by treatment with chloroquine, an inhibitor of endolysosomal acidification. Chloroquine abrogation of escape was also mirrored by a concomitant abrogation of cytotoxicity. Conclusions Poor endolysosomal escape is often a rate limiting step for the cytosolic delivery of protein toxins and other macromolecules. Pulse width analysis offers a simple method to semi-quantify the endolysosomal escape of this and similar molecules into the cytosol.


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