Xiangru Wang

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Strains of extraintestinal pathogenic Escherichia coli (ExPEC) can invade and colonize extraintestinal sites and cause a wide range of infections. Genomic analysis of ExPEC has mainly focused on isolates of human and avian origins, with porcine ExPEC isolates yet to be sequenced. To better understand the genomic attributes underlying the pathogenicity of(More)
The capD gene, encoding a polysaccharide biosynthesis protein, was identified previously as a differential gene between Haemophilus parasuis virulent strain Nagasaki and avirulent strain SW114; however, the characteristics of this gene associating with the pathogenicity of H. parasuis remain unclear. Here, the capD deletion mutant (ΔcapD) and its complement(More)
Streptococcus suis serotype 2 (S. suis 2) is a serious zoonotic pathogen causing septicemia and meningitis in piglets and humans. The capsular polysaccharide (CPS) is an essential virulence factor for S. suis 2 to infect the host. The synthesis of CPS repeating units involves multiple glycosyltransferases. In this study, four genes (cps2E, cps2G, cps2J and(More)
Escherichia coli is the most common Gram-negative bacterium that possesses the ability to cause neonatal meningitis, which develops as circulating bacteria penetrate the blood-brain barrier (BBB). However, whether meningitic E. coli could induce disruption of the BBB and the underlying mechanisms are poorly understood. Our current work highlight for the(More)
Haemophilus parasuis is a commensal bacterium in the swine upper respiratory tract, but virulent strains can invade host and cause Glässer's disease under certain conditions. In order to explore the virulence difference in H. parasuis strains, a virulent isolate, SH0165 (serotype 5), and an avirulent isolate, 7140 (serotype 4), were selected to investigate(More)
The aim of this study was to identify cancer stem cells (CSC) from three hepatocellular carcinoma (HCC) cell lines and to screen for specific microRNAs (miRNAs) regulating CSCs. Side population (SP) phenotype analysis was used. Four factors in the staining process, the incubation time, shaking interval, culture time and Hoechst 33342 concentration were(More)
Accumulating studies have indicated the influence of long non-coding RNAs (lncRNAs) on various biological processes as well as disease development and progression. However, the lncRNAs involved in bacterial meningitis and their regulatory effects are largely unknown. By RNA-sequencing, the transcriptional profiles of host lncRNAs in primary human brain(More)
We present a scheme of nonmechanical laser beam steering using ZnS/InP quantum dots doping nematic liquid crystal as the optical recording film. Because of its internal electric field generated by blue laser-induced charge carrier distribution, liquid crystal molecules are reoriented to form a phase grating which make the incident angle steer to the angle(More)
Extraintestinal pathogenic Escherichia coli (ExPEC) can invade and colonize multiple extraintestinal tissues and can cause a wide range of infections; however the mechanisms of its pathogenicity are not well understood. Flagella contribute to the infection of E. coli strains by mediating adhesion and invasion. Our previous bioinformatic analysis revealed(More)