6,372 Works

Role of lncRNA LINC01194 in hepatocellular carcinoma via the miR-655-3p/SMAD family member 5 axis

Yang Liu, Jie Liu, Junkai Cui, Ruolei Zhong & Guoyang Sun
Long non-coding RNAs (lncRNAs) are involved in developing hepatocellular carcinoma (HCC). The present study explored the role of lncRNA LINC01194, which is upregulated in HCC tissues and might be a vital regulator in HCC progression. Levels of LINC01194, microRNA (miR)-655-3p, and SMAD family member 5 (SMAD5) were assessed using reverse transcription quantitative real-time polymerase chain reaction (RT-qPCR). The bioactivity of Huh-7 cells was assessed using cell counting kit-8 and transwell assays and flow cytometry. Western...

Metabolomics research on the effect of dexamethasone‐induced chronic stress in serum of rabbits

Hongli Liu, Bin Zhang, Lei Liu & Fuchang Li
Stress is a common factor that reduces production performance. However, the physiology of stress is not fully understood. In this study, 40-day-old rabbits were injected 1.0 mg/kg BW Dexamethasone to induce stress. A metabolomic study on serum of stress-induced rabbits was performed to research the metabolism mechanism of stress by using ultra-performance liquid chromatography coupled to mass spectrometry (UPLC–MS). Clear separations between stress rabbits and control rabbits were observed by principal component analysis (PCA) based...

Metabolomics research on the effect of dexamethasone‐induced chronic stress in serum of rabbits

Hongli Liu, Bin Zhang, Lei Liu & Fuchang Li
Stress is a common factor that reduces production performance. However, the physiology of stress is not fully understood. In this study, 40-day-old rabbits were injected 1.0 mg/kg BW Dexamethasone to induce stress. A metabolomic study on serum of stress-induced rabbits was performed to research the metabolism mechanism of stress by using ultra-performance liquid chromatography coupled to mass spectrometry (UPLC–MS). Clear separations between stress rabbits and control rabbits were observed by principal component analysis (PCA) based...

Nutritional components and protein quality analysis of genetically modified phytase maize

Yichun Hu, Liqin Linghu, Min Li, Deqian Mao, Yu Zhang, Xiaoguang Yang & Lichen Yang
The nutritional components and protein quality of genetically modified maize expressing phytase gene (GM) were analyzed and evaluated in this study. The nutritional components were analyzed by Chinese national standard methods. The ileostomy Bama miniature pigs were utilized to analyze the true digestibility of protein and amino acids. The digestible indispensable amino acid score (DIAAS) was adopted to evaluate the protein quality of GM, its parental maize (PM) and commercial available maize Zhengdan 958 (ZD)....

ESM of determination of transdermal rate of metallic microneedle array through impedance measurements-based numerical check screening algorithm

Hui-Jiuan Chen
Microneedle systems have been widely used in health monitoring, painless drug delivery, and medical cosmetology. Although many studies on microneedle materials, structures, and applications have been conducted, the applications of microneedles often suffered from issues of inconsistent penetration rates due to the complication of skin-microneedle interface. In this study, we demonstrated a methodology of determination of transdermal rate of metallic microneedle array through impedance measurements-based numerical check screening algorithm. Metallic sheet microneedle array sensors with...

MeCP2-induced heterochromatin organization is driven by oligomerization-based liquid–liquid phase separation and restricted by DNA methylation

Hui Zhang, Hector Romero, Annika Schmidt, Katalina Gagova, Weihua Qin, Bianca Bertulat, Anne Lehmkuhl, Manuela Milden, Malte Eck, Tobias Meckel, Heinrich Leonhardt & M. Cristina Cardoso
Heterochromatin is the highly compacted form of chromatin with various condensation levels hallmarked by high DNA methylation. MeCP2 is mostly known as a DNA methylation reader but has also been reported as a heterochromatin organizer. Here, we combine liquid–liquid phase separation (LLPS) analysis and single-molecule tracking with quantification of local MeCP2 concentrations in vitro and in vivo to explore the mechanism of MeCP2-driven heterochromatin organization and dynamics. We show that MeCP2 alone forms liquid-like spherical...

Prospero homeobox 1 promotes proliferation, migration, and invasion of osteosarcoma cells and its clinical significance

Dawei Liu, Ran Wang, Yuefeng Wang, Ye Wang & Liantang Wang
Osteosarcoma (OS) is the most common primary malignant bone tumor. Prospero homeobox 1 (PROX1) is a key transcription factor involved in some cancers, but the role of PROX1 in OS is unclear. This study aimed to explore the clinical and biology significance of PROX1 in OS. Fifty-four OS tissues and matched nontumor tissues were collected to explore the relationship between PROX1 expression and clinical characteristics and prognosis. qRT-PCR and immunohistochemistry were used to investigate the...

Ultrasound targeted microbubble destruction-mediated SOCS3 attenuates biological characteristics and epithelial-mesenchymal transition (EMT) of breast cancer stem cells

Xiaojiang Tang, Na Hao, Yuhui Zhou & Yang Liu
SOCS3 is low-expressed in breast cancer and may be a potential target. Ultrasound targeted microbubble destruction (UTMD) improved the efficiency of gene transfection. We explored the effects of UTMD-mediated transfection of SOCS3 on the biological characteristics and epithelial-mesenchymal transition (EMT) of breast cancer stem cells (BCSCs). The expression of SOCS3 in breast cancer (BC) and its association with prognosis were evaluated by GEPIA and The Cancer Genome Atlas (TCGA) websites. BCSCs were sorted by flow...

Aetiology of severe community acquired pneumonia in adults identified by combined detection methods: a multi-centre prospective study in China

Jieming Qu, Jing Zhang, Yu Chen, Yi Huang, Yusang Xie, Min Zhou, Yuping Li, Dongwei Shi, Jinfu Xu, Qiuyue Wang, Bei He, Ning Shen, Bin Cao, Danyang She, Yi Shi, Xin Su, Hua Zhou, Hong Fan, Feng Ye, Qiao Zhang, Xinlun Tian & Guoxiang Lai
Severe Community Acquired Pneumonia (SCAP) challenges public health globally. Considerable improvements in molecular pathogen testing emerged in the last few years. Our prospective study combinedly used traditional culture, antigen tests, PCR and mNGS in SCAP pathogen identification with clinical outcomes. From June 2018 to December 2019, we conducted a multi-centre prospective study in 17 hospitals of SCAP patients within 48 hours of emergency room stay or hospitalization in China. All clinical data were uploaded into...

Aetiology of severe community acquired pneumonia in adults identified by combined detection methods: a multi-centre prospective study in China

Jieming Qu, Jing Zhang, Yu Chen, Yi Huang, Yusang Xie, Min Zhou, Yuping Li, Dongwei Shi, Jinfu Xu, Qiuyue Wang, Bei He, Ning Shen, Bin Cao, Danyang She, Yi Shi, Xin Su, Hua Zhou, Hong Fan, Feng Ye, Qiao Zhang, Xinlun Tian & Guoxiang Lai
Severe Community Acquired Pneumonia (SCAP) challenges public health globally. Considerable improvements in molecular pathogen testing emerged in the last few years. Our prospective study combinedly used traditional culture, antigen tests, PCR and mNGS in SCAP pathogen identification with clinical outcomes. From June 2018 to December 2019, we conducted a multi-centre prospective study in 17 hospitals of SCAP patients within 48 hours of emergency room stay or hospitalization in China. All clinical data were uploaded into...

Morphology and phylogeny of two new Thalassiosiroid taxa (Bacillariophyceae), with two marginal rimoportulae

Biaobiao Niu, Yaqiong Guo, Nina Lundholm & Yang Li
Thalassiosira and related taxa i.e. the taxa within Thalassiosirales are among the most abundant and widespread diatoms. The vast majority have one marginal rimoportula, but very few always have two. The knowledge on Thalassiosiroid taxa in Chinese waters is restricted, and to explore the diversity, monoclonal strains were established from southern Chinese coastal waters. Morphological data were based on light and scanning electron microscopy. The D1‒D3 region of the ribosomal large subunit (LSU) and the...

Short divalent ethacrynic amides as pro-inhibitors of glutathione S-transferase isozyme Mu and potent sensitisers of cisplatin-resistant ovarian cancers

Bangtian Xu, Tingting Tong, Xin Wang, Fang Liu, Xiang Zhang, Xiaolei Hu, Xinpeng Li, Xiaolan Yang & Fei Liao
The linking of ethacrynic acid with ethylenediamine and 1,4-butanediamine gave EDEA and BDEA, respectively, as membrane-permeable divalent pro-inhibitors of glutathione S-transferase (GST). Their divalent glutathione conjugates showed subnanomolar inhibition and divalence-binding to GSTmu (GSTM) (PDB: 5HWL) at ∼0.35 min−1. In cisplatin-resistant SK-OV-3, COC1, SGC7901 and A549 cells, GSTM activities probed by 15 nM BDEA or EDEA revealed 5-fold and 1.0-fold increases in cisplatin-resistant SK-OV-3 and COC1 cells, respectively, in comparison with the susceptible parental cells....

Short divalent ethacrynic amides as pro-inhibitors of glutathione S-transferase isozyme Mu and potent sensitisers of cisplatin-resistant ovarian cancers

Bangtian Xu, Tingting Tong, Xin Wang, Fang Liu, Xiang Zhang, Xiaolei Hu, Xinpeng Li, Xiaolan Yang & Fei Liao
The linking of ethacrynic acid with ethylenediamine and 1,4-butanediamine gave EDEA and BDEA, respectively, as membrane-permeable divalent pro-inhibitors of glutathione S-transferase (GST). Their divalent glutathione conjugates showed subnanomolar inhibition and divalence-binding to GSTmu (GSTM) (PDB: 5HWL) at ∼0.35 min−1. In cisplatin-resistant SK-OV-3, COC1, SGC7901 and A549 cells, GSTM activities probed by 15 nM BDEA or EDEA revealed 5-fold and 1.0-fold increases in cisplatin-resistant SK-OV-3 and COC1 cells, respectively, in comparison with the susceptible parental cells....

Long noncoding RNA H19 suppresses cardiac hypertrophy through the MicroRNA-145-3p/SMAD4 axis

Hao Wang, Xiaoqing Lian, Wei Gao, Jie Gu, Haojie Shi, Yao Ma, Yafei Li, Yi Fan, Qiming Wang & Liansheng Wang
Sustained cardiac hypertrophy (CH) contributes to many heart diseases. Long noncoding RNAs (lncRNAs) collectively play critical roles in cardiovascular diseases (CVDs). However, the roles of lncRNA H19 in CH are still unclear. A CH model was constructed utilizing isoproterenol (ISO). We demonstrated H19 could participate in regulating ISO-induced CH development both in vivo and in vitro. The online databases DIANA and TargetScan were used to predict the targets of H19 and MicroRNA-145-3p (miR-145-3p), respectively. Luciferase...

Knockdown of circ_0001679 alleviates lipopolysaccharide-induced MLE-12 lung cell injury by regulating the miR-338-3p/ mitogen-activated protein kinase 1 axis

Shenggui Lu, Xinmiao Wu, Shuai Xin, Jing Zhang, Hanying Lin, Yu Miao & Yixin Li
The upregulation of circ_0001679 was reported in lipopolysaccharide (LPS)-induced lung injury mouse model, but its functional roles and mechanisms in LPS-induced lung injury remain to be investigated. In this study, we aimed to explore the potential role of circ_0001679 in septic acute lung injury. We initially established an in vitro lung cell injury model using LPS-treated MLE-12 cells. siRNAs targeting circRNA_0001679 were employed to stably knock down circRNA_0001679, followed by functional assays to investigate the...

Transcriptome analysis of adipocytokines and their-related LncRNAs in lung adenocarcinoma revealing the association with prognosis, immune infiltration, and metabolic characteristics

Jie Ren, Hui Zhang, Jinna Wang, Yingsong Xu, Lei Zhao & Qihang Yuan
Lung adenocarcinoma (LUAD) is amongst the major contributors to cancer-related deaths on a global scale. Adipocytokines and long non-coding RNAs (lncRNAs) are indispensable participants in cancer. We performed a pan-cancer analysis of the mRNA expression, single nucleotide variation, copy number variation, and prognostic value of adipocytokines. LUAD samples were obtained from the Gene Expression Omnibus (GEO) and The Cancer Genome Atlas (TCGA) databases. Simultaneously, train, internal and external cohorts were grouped. After a stepwise screening...

Stachydrine is effective and selective against blast phase chronic myeloid leukaemia through inhibition of multiple receptor tyrosine kinases

Ruixin Gu, Wei Zhang & Dandan Xu
Resistance to BCR-ABL tyrosine kinase inhibitor (TKI) is the cause of treatment failure in blast phase chronic myeloid leukaemia (BP-CML). Agents that act synergistically with BCR-ABL TKI are required to improve response. This work investigated the effects of stachydrine in CML. CML cells were treated with control or stachydrine at 20, 40 and 80 µM. Proliferation and apoptosis were examined after 72 h treatment. Combination studies were performed in four groups: control, TKI, stachydrine and...

Abietane diterpenoids with neuroprotective activities from Phlegmariurus carinatus

Yang Liu, Qiang Wang, Dong-Kun Zheng, De Zhang, Zhen Xie, Jia-Wei Hu, Xin-Hua Xie, Jing Li & Shu-Ping Jiang
Two new abietane diterpenoids, phlecarinatone A (1) and phlecarinatone B (2), along with two known analogues (3 and 4), were isolated from Phlegmariurus carinatus. The structures of 1 − 4 were unambiguously elucidated by comprehensive spectroscopic analyses. Abietane diterpenoids were isolated from the plant for the first time. All isolates were tested for their neuroprotective activities against H2O2-induced SH-SY5Y cells injury, and compound 2 showed moderate effect at the concentrations ranging from 5 ∼ 20...

Novel H5N6 reassortants bearing the clade 2.3.4.4b HA gene of H5N8 virus have been detected in poultry and caused multiple human infections in China

Wenli Gu, Jianzhong Shi, Pengfei Cui, Cheng Yan, Yaping Zhang, Congcong Wang, Yuancheng Zhang, Xin Xing, Xianying Zeng, Liling Liu, Guobin Tian, Yasuo Suzuki, Chengjun Li, Guohua Deng & Hualan Chen
The globally circulating H5N8 avian influenza viruses bearing the clade 2.3.4.4b hemagglutinin (HA) gene are responsible for the loss of more than 33 million domestic poultry since January 2020. Moreover, the H5N8 viruses have reassorted with other avian influenza viruses and formed H5N1, H5N2, H5N3, H5N4, and H5N5 viruses in Europe, Africa, and North America. In this study, we analyzed 15 H5N6 viruses isolated from poultry and seven H5N6 viruses isolated from humans, and found...

Identification of novel susceptibility methylation loci for pancreatic cancer in a two-phase epigenome-wide association study

Ziqiao Wang, Yue Lu, Myriam Fornage, Li Jiao, Jianjun Shen, Donghui Li & Peng Wei
The role of DNA methylation and its interplay with gene expression in the susceptibility to pancreatic cancer (PanC) remains largely unexplored. To fill in this gap, we conducted an integrative two-phase epigenome-wide association study (EWAS) of PanC using genomic DNA from 44 cases and 556 controls (20 local controls and 536 public controls in the Framingham Heart Study) in phase 1 and 23 cases and 22 controls in phase 2. We validated the findings using...

Development of a multi-view and geo-event-driven real-time collaborative GIS

Sun Yaqin, Xu Chen, Wu Jinxiong, Yuan Hang, Shi Haibo, Zhan Xiumei & Zhang Lin
Supporting distributed real-time collaborative work has become an important development trend in GIS. It enables group users to cooperate and improve the use of scientific data and collaboration technologies. Real-time collaborative GIS (RCGIS) provides a platform for supporting synchronous collaboration using geospatial data in various forms. Traditional RCGIS generally works on a single map view, which has the disadvantage of collaborative interface confusion. The traditional system-driven mechanism of RCGIS is a computer-interaction event that has...

Timosaponin B-II alleviates osteoarthritis-related inflammation and extracellular matrix degradation through inhibition of mitogen-activated protein kinases and nuclear factor-κB pathways in vitro

Xinwei Liu, Dulei Xiang, Wenming Jin, Gen Zhao, Han Li, Bing Xie & Xiaochuan Gu
Osteoarthritis (OA), an inflammatory response in chondrocytes, leads to extracellular matrix (ECM) degradation and cartilage destruction. Timosaponin B-II (TB-II) is the main bioactive component of Rhizoma Anemarrhenae with reported antioxidant and anti-inflammatory effects. This study investigated the anti-OA function and mechanism of TB-II on IL-1β-stimulated SW1353 cells and primary rat chondrocytes. We firstly screened the concentration of TB-II in SW1353 cells and primary rat chondrocytes using CCK-8 assay. Thereafter, SW1353 cells and chondrocytes were, respectively,...

miR-669a-5p promotes adipogenic differentiation and induces browning in preadipocytes

Xiaoqiong Tan, Tingting Zhu, Linqiang Zhang, Lin Fu, Ying Hu, Huiqin Li, Chengbin Li, Jingjing Zhang, Bin Liang & Jing Liu
Obesity is a major global health issue that contributes to the occurrence of metabolic disorders. Based on this fact, understanding the underlying mechanisms and to uncover promising therapeutic approaches for obesity have attracted intense investigation. Brown adipose tissue (BAT) can help burns excess calories. Therefore, promoting White adipose tissue (WAT) browning and BAT activation is an attractive strategy for obesity treatment. MicroRNAs (miRNAs) are small, non-coding RNAs, which are involved in regulation of adipogenic processes...

Late paleozoic–mesozoic subduction and accretion of the paleo-pacific plate: insights from the ocean plate stratigraphy of the wandashan accretionary complex, NE China

Yong Liang, Han Zheng, Huan Li, Michael W. Förster & Zhihan Li
The Wandashan accretionary complex (AC) is located in the easternmost part of Northeast China and consists of the Raohe complex in the east and Yuejinshan complex in the west. It represents an excellent location for insights into Paleo-Pacific subduction and accretion processes. However, the protolith (mainly contains Ocean Plate Stratigraphy ‘OPS’ and ophiolite) nature and tectonic evolution of the Wandashan AC are under debate. This contribution reports three representative geological sections, conducts the OPS reconstruction,...

Late paleozoic–mesozoic subduction and accretion of the paleo-pacific plate: insights from the ocean plate stratigraphy of the wandashan accretionary complex, NE China

Yong Liang, Han Zheng, Huan Li, Michael W. Förster & Zhihan Li
The Wandashan accretionary complex (AC) is located in the easternmost part of Northeast China and consists of the Raohe complex in the east and Yuejinshan complex in the west. It represents an excellent location for insights into Paleo-Pacific subduction and accretion processes. However, the protolith (mainly contains Ocean Plate Stratigraphy ‘OPS’ and ophiolite) nature and tectonic evolution of the Wandashan AC are under debate. This contribution reports three representative geological sections, conducts the OPS reconstruction,...

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