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- 저자 : Sibo Wang (검색결과 4 건)
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Sibo Wang,Jingsong Guo,Ying Zhang,Yushuang Guo,Wei Ji 한국유전학회 2021 Genes & Genomics Vol.43 No.7
Background In response to various abiotic stressors such as drought, many plants engage diferent protein phosphatases linked to several physiological and developmental processes. However, comprehensive analysis of this gene family is lacking for soybean. Objective This study was performed to identify the TOPP-type protein phosphatase family in soybean and investigate the gene’s role under drought stress. Methods Soybean genome sequences and transcriptome data were downloaded from the Phytozome v.12, and the microarray data were downloaded from NCBI GEO datasets GSE49537. Expression profles of GmTOPP13 were obtained based on qRT-PCR results. GmTOPP13 gene was transformed into tobacco plants via Agrobacterium mediated method, and the drought tolerance was analyzed by water defcit assay. Results 15 GmTOPP genes were identifed in the soybean genome database (GmTOPP1–15). GmTOPP genes were distributed on 9 of 20 chromosomes, with similar exon-intron structure and motifs arrangement. All GmTOPPs contained Metallophos and STPPase_N domains as well as the core catalytic sites. Cis-regulatory element analysis predicted that GmTOPPs were widely involved in plant development, stress and hormone response in soybean. Expression profles showed that GmTOPPs expressed in diferent tissues and exhibited divergent expression patterns in leaf and root in response to drought stimulus. Moreover, GmTOPP13 gene was isolated and expression pattern analysis indicated that this gene was highly expressed in seed, root, leaf and other tissues detected, and intensively induced upon PEG6000 treatment. In addition, overexpression of GmTOPP13 gene enhanced the drought tolerance in tobacco plants. The transgenic tobacco plants showed regulation of stress-responsive genes including CAT, SOD, ERD10B and TIP during drought stress. Conclusions This study provides valuable information for the study of GmTOPP gene family in soybean, and lays a foundation for further functional studies of GmTOPP13 gene under drought and other abiotic stresses.
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Tao Yang,Sibo Wang,Xuyong Zhang,Jie Xia,Jun Guo,Jixue Hou,Hongwei Zhang,Xueling Chen,Xiangwei Wu 대한기생충학열대의학회 2016 The Korean Journal of Parasitology Vol.54 No.2
Human and animal alveolar echinococcosis (AE) are important helminth infections endemic in wide areas of the Northern hemisphere. Monitoring Echinococcus multilocularis viability and spread using real-time fluorescent imaging in vivo provides a fast method to evaluate the load of parasite. Here, we generated a kind of fluorescent protoscolices in vivo imaging model and utilized this model to assess the activity against E. multilocularis protoscolices of metformin (Met). Results indicated that JC-1 tagged E. multilocularis can be reliably and confidently used to monitor protoscolices in vitro and in vivo. The availability of this transient in vivo fluorescent imaging of E. multilocularis protoscolices constitutes an important step toward the long term bio-imaging research of the AE-infected mouse models. In addition, this will be of great interest for further research on infection strategies and development of drugs and vaccines against E. multilocularis and other cestodes.
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Jing Xiao,Sibo Zhu,Haochen Guan,Haochen Guan,Fengqin Li,Xiaoli Zhang,Hui Guo,Xiaojun Wang,Zhibin Ye 생화학분자생물학회 2019 Experimental and molecular medicine Vol.51 No.-
One of the mechanisms in hyperuricemia (HUA)-induced renal tubular injury is the impairment of Na+-K+-ATPase (NKA) signaling, which further triggers inflammation, autophagy, and mitochondrial dysfunction and leads to cell injury. Here, we used RNA sequencing to screen the most likely regulators of NKA signaling and found that the liver kinase B1(LKB1)/adenosine monophosphate (AMP)-activated protein kinase (AMPK)/ mammalian target of rapamycin (mTOR) pathway was the most abundantly enriched pathway in HUA. AMPK is a key regulator of cell energy metabolism; hence, we examined the effect of AMPK on HUA-induced dysregulation of NKA signaling and cell injury. We first detected AMPK activation in high uric acid (UA)-stimulated proximal tubular epithelial cells (PTECs). We further found that sustained treatment with the AMPK activator 5-aminoimidazole-4-carboxamide 1-β-d-ribofuranoside (AICAR), but not the AMPK inhibitor Compound C, significantly alleviated UA-induced reductions in NKA activity and NKA α1 subunit expression on the cell membrane by reducing NKA degradation in lysosomes; sustained AICAR treatment also significantly alleviated activation of the NKA downstream molecules Src and interleukin-1β (IL-1β) in PTECs. AICAR further alleviated high UA-induced apoptosis, autophagy, and mitochondrial dysfunction. Although AMPK activation by metformin did not reduce serum UA levels in hyperuricemic rats, it significantly alleviated HUAinduced renal tubular injury and NKA signaling impairment in vivo with effects similar to those of febuxostat. Our study suggests that AMPK activation may temporarily compensate for HUA-induced renal injury. Sustained AMPK activation could reduce lysosomal NKA degradation and maintain NKA function, thus alleviating NKA downstream inflammation and protecting tubular cells from high UA-induced renal tubular injury.
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