Single cell analysis of low-power laser irradiation-induced activation of signaling pathway in cell proliferation

2007 ◽  
Author(s):  
Da Xing ◽  
Xuejuan Gao
Keyword(s):  
Cell Proliferation ◽  
Low Power ◽  
Single Cell ◽  
Laser Irradiation ◽  
Signaling Pathway ◽  
Single Cell Analysis ◽  
Cell Analysis ◽  
Power Laser

scholarly journals Role of Calcium Signaling Pathway-Related Gene Regulatory Networks in Ischemic Stroke Based on Multiple WGCNA and Single-Cell Analysis

2021 ◽  
Vol 2021 ◽  
pp. 1-35
Author(s):  
Weiwei Lin ◽  
Yangxin Wang ◽  
Yisheng Chen ◽  
Qiangwei Wang ◽  
Zhaowen Gu ◽  
...  
Keyword(s):  
Gene Expression ◽  
Calcium Signaling ◽  
Single Cell ◽  
Signaling Pathway ◽  
Single Cell Analysis ◽  
Cell Analysis ◽  
Kegg Pathways ◽  
Calcium Signaling Pathway ◽  
Core Genes

Background. This study is aimed at investigating the changes in relevant pathways and the differential expression of related gene expression after ischemic stroke (IS) at the single-cell level using multiple weighted gene coexpression network analysis (WGCNA) and single-cell analysis. Methods. The transcriptome expression datasets of IS samples and single-cell RNA sequencing (scRNA-seq) profiles of cerebrovascular tissues were obtained by searching the Gene Expression Omnibus (GEO) database. First, gene pathway scoring was calculated via gene set variation analysis (GSVA) and was imported into multiple WGCNA to acquire key pathways and pathway-related hub genes. Furthermore, SCENIC was used to identify transcription factors (TFs) regulating these core genes using scRNA-seq data. Finally, the pseudotemporal trajectory analysis was used to analyse the role of these TFs on various cell types under hypoxic and normoxic conditions. Results. The scores of 186 KEGG pathways were obtained via GSVA using microarray expression profiles of 40 specimens. WGCNA of the KEGG pathways revealed the two following pathways: calcium signaling pathway and neuroactive ligand-receptor interaction pathways. Subsequently, WGCNA of the gene expression matrix of the samples revealed the calcium signaling pathway-related genes (AC079305.10, BCL10, BCL2A1, BRE-AS1, DYNLL2, EREG, and PTGS2) that were identified as core genes via correlation analysis. Furthermore, SCENIC and pseudotemporal analysis revealed JUN, IRF9, ETV5, and PPARA score gene-related TFs. Jun was found to be associated with hypoxia in endothelial cells, whereas Irf9 and Etv5 were identified as astrocyte-specific TFs associated with oxygen concentration in the mouse cerebral cortex. Conclusions. Calcium signaling pathway-related genes (AC079305.10, BCL10, BCL2A1, BRE-AS1, DYNLL2, EREG, and PTGS2) and TFs (JUN, IRF9, ETV5, and PPARA) were identified to play a key role in IS. This study provides a new perspective and basis for investigating the pathogenesis of IS and developing new therapeutic approaches.

Single cell analysis of PKC activation during proliferation and apoptosis induced by laser irradiation

2005 ◽  
Vol 206 (2) ◽  
pp. 441-448 ◽  
Author(s):  
Xuejuan Gao ◽  
Tongsheng Chen ◽  
Da Xing ◽  
Fang Wang ◽  
Yihui Pei ◽  
...  
Keyword(s):  
Single Cell ◽  
Laser Irradiation ◽  
Single Cell Analysis ◽  
Cell Analysis ◽  
Proliferation And Apoptosis ◽  
Pkc Activation

Low-power laser irradiation promotes cell proliferation by activating PI3K/Akt pathway

2009 ◽  
Vol 219 (3) ◽  
pp. 553-562 ◽  
Author(s):  
Lingling Zhang ◽  
Da Xing ◽  
Xuejuan Gao ◽  
Shengnan Wu
Keyword(s):  
Cell Proliferation ◽  
Low Power ◽  
Laser Irradiation ◽  
Akt Pathway ◽  
Power Laser
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