3,255 Works

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...

An overview of the methods for analyzing the chemical forms of metals in plants

Jiawei Yang, Lin Sun, Xing Shen, Min Dai, Imran Ali, Changsheng Peng & Iffat Naz
Currently, the occurrence of toxic levels of metals in soils is a serious environmental issue worldwide. Phytoremediation is getting much attention to control metals soil pollution because it is economic and environmentally friendly. However, the methods used to detect metals in plants are not uniform and have depicted poor comparability of the research investigations. Therefore, the present overview is designed to discuss the possible chemical forms of metals in various environmental matrixes and the detection...

Plant elicitor peptide 1 fortifies root cell walls and triggers a systemic root-to-shoot immune signaling in Arabidopsis

Jie Zhang, Yuxi Li, Qixin Bao, Hongbo Wang & Shuguo Hou
Plant immunity is initiated by cell surface-localized receptors upon perception of pathogen-derived microbe or pathogen-associated molecular patterns (MAMPs/PAMPs), damage/danger-associated molecular patterns (DAMPs), and phytocytokines. Different patterns activate highly overlapping immune signaling at the early stage but divergent physiological responses at the late stage. Here, we indicate that plant elicitor peptide 1 (Pep1), a well-known DAMP, induces lignin and callose depositions, two types of late immune responses for strengthening the plant cell wall. Pep1-induced lignin and...

Assessing spatiotemporal variations and predicting changes in ecosystem service values in the Guangdong–Hong Kong–Macao Greater Bay Area

Jie Zhang, Xuecao Li, Chenchen Zhang, Le Yu, Jingzhe Wang, Xiangyin Wu, Zhongwen Hu, Zihan Zhai, Qingquan Li, Guofeng Wu & Tiezhu Shi
Rapid economic development and interference by human activities in rapid urbanization regions have caused great land use/land cover change (LUCC), which significantly affects ecosystem functions and services. It is crucial to assess the spatiotemporal evolution of ecosystem service value (ESV) in such regions, especially for the Guangdong–Hong Kong–Macao Greater Bay Area (GBA) in China. In this study, we investigated and predicted the effect of LUCC on the ESV in the GBA from 1990 to 2030...

Two new cytisine-type alkaloids from the seeds of Thermopsis lanceolata

Peng Zhang, Ji-Bin Zou, Qiao An, Ping Yi, Chun-Mao Yuan, Lie-Jun Huang, Wei Gu, Zhan-Xing Hu & Xiao-Jiang Hao
Two new (1 and 2) cytisine-type alkaloids that were chemically inseparable isomers (present in a 1:1 ratio) were identified from the seeds of Thermopsis lanceolata R. Br. Their structures were elucidated by comprehensive spectroscopic data analysis (IR, UV, NMR, HRESIMS) and ECD calculation. Compound 1 displayed significant anti-tobacco mosaic virus (TMV) activity, while compounds 1 and 2 displayed moderate insecticidal activities against Aphis fabae with LC50 value of 43.15 and 46.47 mg/L, respectively.

ETS Proto-Oncogene 1-activated muskelin 1 antisense RNA drives the malignant progression of hepatocellular carcinoma by targeting miR-22-3p to upregulate ETS Proto-Oncogene 1

Guozheng Pan, Jian Zhang, Faping You, Tao Cui, Peng Luo, Shuling Wang, Xiaomei Li & Qingzhong Yuan
Long noncoding RNA muskelin 1 antisense RNA (MKLN1-AS) acted as an oncogenic regulator in hepatocellular carcinoma (HCC). This study was performed to investigate the functional mechanism of MKLN1-AS. MKLN1-AS, microRNA-22-3p (miR-22-3p) and ETS Proto-Oncogene 1 (ETS1) levels were examined using reverse transcription-quantitative polymerase-chain reaction. Protein expression was detected by Western blot. The target relation was analyzed by dual-luciferase reporter assay, RNA immunoprecipitation assay and RNA pull-down assay. Cell proliferation ability was determined through cell counting...

New cytotoxic ergosterols from a plant-associated fungus Colletotrichum magnisporum

Yanqi Hao, Lan Wei, Li Li, Yanlei Wang, Ning Li, Yingni Pan & Yi Sun
Three new ergosterols, colletosterols A-C (1–3), together with two known analogues 4 and 5, were isolated from the endophytic fungus Colletotrichum magnisporum associated with the leaves of Rauvolfia verticillata by a bioassay-guided fractionation method. The new structures were elucidated on the basis of extensive spectroscopic analyses and electronic circular dichroism (ECD) calculations. All the ergosterols were evaluated for their cytotoxic activities against A549 and HeLa cell lines. Compounds 1–3 exhibited notable cytotoxicity with the IC50...

New cytotoxic ergosterols from a plant-associated fungus Colletotrichum magnisporum

Yanqi Hao, Lan Wei, Li Li, Yanlei Wang, Ning Li, Yingni Pan & Yi Sun
Three new ergosterols, colletosterols A-C (1–3), together with two known analogues 4 and 5, were isolated from the endophytic fungus Colletotrichum magnisporum associated with the leaves of Rauvolfia verticillata by a bioassay-guided fractionation method. The new structures were elucidated on the basis of extensive spectroscopic analyses and electronic circular dichroism (ECD) calculations. All the ergosterols were evaluated for their cytotoxic activities against A549 and HeLa cell lines. Compounds 1–3 exhibited notable cytotoxicity with the IC50...

Upstream stimulatory factor 2 (USF2) induced upregulation of triggering receptor expressed on myeloid cells 1 (TREM1) promotes endometritis by regulating toll-like receptor (TLR) 2/4-nuclear factor-kappaB (NF-κB) signaling pathway

Miao Zhang, Chengkun Yin, Yan Chen, Juan Wang & Jing Jiang
Triggering receptor expressed on myeloid cells 1 (TREM1) participates in the development of endometritis. This study aims at identifying the effects and interaction of TREM1 and upstream stimulatory factor 2 (USF2) in endometritis by using a model of lipopolysaccharide (LPS)-induced human endometrial epithelial cells (HEnEpCs). ELISA was performed to determine the levels of interleukin (IL)-6, IL-1β, and tumor necrosis factor (TNF-α) after LPS stimulation. TREM1 and USF2 expression was examined with RT-qPCR and Western blot....

Safety, mucosal and systemic immunopotency of an aerosolized adenovirus-vectored vaccine against SARS-CoV-2 in rhesus macaques

Fang Xu, Shipo Wu, Linan Yi, Shaodan Peng, Fan Wang, Weixue Si, Lihua Hou & Tao Zhu
Mucosal immunity provides a potential for preventing initial infection and stopping subsequent transmission of SARS-CoV-2. Here, we examined the safety and immunogenicity of a replication-defective adenovirus type-5 vectored vaccine (Ad5-nCov) encoding SARS-CoV-2 spike protein delivered by nebulization inhalation in rhesus macaques. The vaccine-associated clinical pathology and toxicity were not observed in the NHP model. The extensive safety study indicated that Ad5-nCoV was mainly confined to the organs related to respiratory system and was rapidly cleared...

Safety, mucosal and systemic immunopotency of an aerosolized adenovirus-vectored vaccine against SARS-CoV-2 in rhesus macaques

Fang Xu, Shipo Wu, Linan Yi, Shaodan Peng, Fan Wang, Weixue Si, Lihua Hou & Tao Zhu
Mucosal immunity provides a potential for preventing initial infection and stopping subsequent transmission of SARS-CoV-2. Here, we examined the safety and immunogenicity of a replication-defective adenovirus type-5 vectored vaccine (Ad5-nCov) encoding SARS-CoV-2 spike protein delivered by nebulization inhalation in rhesus macaques. The vaccine-associated clinical pathology and toxicity were not observed in the NHP model. The extensive safety study indicated that Ad5-nCoV was mainly confined to the organs related to respiratory system and was rapidly cleared...

Polygonum cuspidatum inhibits the growth of osteosarcoma cells via impeding Akt/ERK/EGFR signaling pathways

Jun Zhao, Boyu Pan, Xinglu Zhou, Chunnuan Wu, Fengcheng Hao, Jie Zhang & Liren Liu
Osteosarcoma (OS), the most prevalent bone malignancy, mainly affects children and adolescents. Despite recent advances in multimodal therapy, the overall survival rate for OS patients remains poor. Chinese herb medicine (CHM) is an alternative therapeutic option for multifaceted diseases such as malignant tumors. For centuries in China, polygonum cuspidatum, a classic CHM, has been used to treat several diseases, nevertheless, the mechanisms underlying its therapeutic effects have not been fully elucidated. Through network pharmacology and...

BUB1B (BUB1 Mitotic Checkpoint Serine/Threonine Kinase B) promotes lung adenocarcinoma by interacting with Zinc Finger Protein ZNF143 and regulating glycolysis

Xiaolei Zhou, Yanli Yuan, Hongping Kuang, Bingxiang Tang, Hui Zhang & Manlin Zhang
Lung adenocarcinoma (LUAD) is one of the most common causes of cancer death in men. BUB1B (BUB1 mitotic checkpoint serine/threonine kinase B) has been reported to contribute to the initiation and development of several cancers. Here, we aimed to explore the potential role of BUB1B in LUAD. We found BUB1B was upregulated in LUAD, suggesting its potential role as a biomarker for LUAD diagnosis. Significantly, LUAD patients with high BUB1B expression had a shorter survival...

Two new terpenoids with anti-inflammatory activity from the fruits of Arenga pinnata (Wurmb) Merr.

Jia-Tong Wu, Adnan Mohammed Algradi, Yan Liu, Jin-Hai Huo, Xiao-Mao Li, Bing-You Yang & Wei-Ming Wang
Two new terpenoids (1 and 2), arenterpenoid D (1) and pinnasesquiterpene A (2), along with 16 phenylpropanoids (3–18) and 8 known terpenoids (19–26) were isolated from 70% EtOH extract of the Arenga pinnata (Wurmb) Merr. fruits. Their structures were elucidated by spectroscopic methods including HR-ESI-MS, 1D, and 2D NMR. The absolute configuration of arenterpenoid D (1) was defined by X-ray crystallographic analysis. Furthermore, we evaluated the anti-inflammatory activity of all compounds, and outcomes showed that...

Two new terpenoids with anti-inflammatory activity from the fruits of Arenga pinnata (Wurmb) Merr.

Jia-Tong Wu, Adnan Mohammed Algradi, Yan Liu, Jin-Hai Huo, Xiao-Mao Li, Bing-You Yang & Wei-Ming Wang
Two new terpenoids (1 and 2), arenterpenoid D (1) and pinnasesquiterpene A (2), along with 16 phenylpropanoids (3–18) and 8 known terpenoids (19–26) were isolated from 70% EtOH extract of the Arenga pinnata (Wurmb) Merr. fruits. Their structures were elucidated by spectroscopic methods including HR-ESI-MS, 1D, and 2D NMR. The absolute configuration of arenterpenoid D (1) was defined by X-ray crystallographic analysis. Furthermore, we evaluated the anti-inflammatory activity of all compounds, and outcomes showed that...

Hyperthermia inhibits growth of nasopharyngeal carcinoma through degradation of c-Myc

Xiaole Li, Shichao Duan, Yingjuan Zheng, Yongqiang Yang, Lei Wang, Xinqiang Li, Qing Zhang, Rick F. Thorne, Wencai Li & Daoke Yang
Hyperthermia is a widely used adjunct treatment for different cancers including nasopharyngeal carcinoma (NPC). The protooncogene c-Myc is up-regulated in NPC and its expression is associated with poor prognosis. We hypothesized that c-Myc constitutes an important hyperthermia treatment target, and we investigated its contribution to hyperthermia responses in NPC. The growth of the human NPC cell lines CNE1 and CNE2 was analyzed using CCK-8 and clonogenicity assays after 43 °C hyperthermia, knockdown or overexpression of...

Origin of the volcanic rocks in Dianzhong Formation, central Lhasa Terrane, Tibet: implication for the genesis of syn-collisional magmatism and Neo-Tethyan slab roll-back

Yutong Zhang, Feng Huang, Jifeng Xu, Yunchuan Zeng, Baodi Wang, Mingda Lv, Le Zhang, Mingjian Li, Zhao Zhang, Ye Tian, Qian Liu & Liying Zhang
The origin and formation of the continental collision-related magmas remain elusive. The volcanic rocks erupted during India-Asia continental collision offer an ideal opportunity to explore their genesis and geodynamic process. Here, we report new zircon U-Pb dating results and Hf isotope, whole-rock element and Sr-Nd isotope data of volcanic rocks in Linzhou Basin, central Lhasa Terrane, southern Tibet. These volcanic rocks are mainly comprised of andesites and belong to Dianzhong Formation. The timing of their...

Genome-wide analysis of the GRF gene family and their expression profiling in peach (Prunus persica)

Li Liu, Xiu-jie Li, Bo Li, Ming-yue Sun & Shao-xuan Li
Growth-regulating factors (GRFs) are plant-specific transcription factors with vital roles in multiple biological processes. Although GRFs have been identified in various plant species, a comprehensive analysis of GRF genes in peach (Prunus persica) has not yet been reported. In this study, 10 PpGRF genes distributed on 6 chromosomes were identified in peach genome and their properties were analyzed systematically. Expression pattern analysis suggested that most PpGRFs were preferentially expressed in young tissues. Multiple types of...

Genome-wide analysis of the GRF gene family their expression profiling in peach (Prunus persica)

Li Liu, Xiu-jie Li, Bo Li, Ming-yue Sun & Shao-xuan Li
Growth-regulating factors (GRFs) are plant-specific transcription factors with vital roles in multiple biological processes. Although GRFs have been identified in various plant species, a comprehensive analysis of GRF genes in peach (Prunus persica) has not yet been reported. In this study, 10 PpGRF genes distributed on 6 chromosomes were identified in peach genome and their properties were analyzed systematically. Expression pattern analysis suggested that most PpGRFs were preferentially expressed in young tissues. Multiple types of...

RTN4/Nogo-A-S1PR2 negatively regulates angiogenesis and secondary neural repair through enhancing vascular autophagy in the thalamus after cerebral cortical infarction

Peiyi Xiao, Jinmin Gu, Wei Xu, Xingyang Niu, Jian Zhang, Jingjing Li, Yicong Chen, Zhong Pei, Jinsheng Zeng & Shihui Xing
Cerebral infarction induces angiogenesis in the thalamus and influences functional recovery. The mechanisms underlying angiogenesis remain unclear. This study aimed to investigate the role of RTN4/Nogo-A in mediating macroautophagy/autophagy and angiogenesis in the thalamus following middle cerebral artery occlusion (MCAO). We assessed secondary neuronal damage, angiogenesis, vascular autophagy, RTN4 and S1PR2 signaling in the thalamus. The effects of RTN4-S1PR2 on vascular autophagy and angiogenesis were evaluated using lentiviral and pharmacological approaches. The results showed that...

Nepetin reduces virulence factors expression by targeting ClpP against MRSA-induced pneumonia infection

Shisong Jing, Xinran Ren, Li Wang, Xiangri Kong, Xingye Wang, Xiren Chang, Xuerui Guo, Yan Shi, Jiyu Guan, Tiedong Wang, Bingmei Wang, Wu Song & Yicheng Zhao
The resistance of Staphylococcus aureus (S. aureus) to various antibiotics has increased dramatically due to the misuse of antibiotics, and thus the development of new anti-infective drugs with new targets is urgently needed to combat resistance. Caseinolytic peptidase P is a case in hydrolase that regulates the virulence level of S. aureus. Here, we found that nepetin, a small-molecule compound from traditional Chinese herbal flavonoids, effectively inhibits ClpP activity. Nepetin suppressed the virulence of S....

Implementing a Canadian shared-care ADHD program in Beijing: Barriers and facilitators to consider prior to start-up

Sayna Bahraini, Alexander R. Maisoneuve, Yirong Liu, André Samson, Qian Ying, Fei Li, Li Yang & Philippe Robaey
Abstract Background The shared care pathway for ADHD is a program developed in Canada with two main strategies: (a) implement a shared care pathway between general practitioners (GPs) and specialists, and (b) step up or down care so that the patient is treated at the most appropriate level of care, depending on the complexity or outcome of their illness. The current study aims to identify the challenges and facilitators of implementing this program in a...

Implementing a Canadian shared-care ADHD program in Beijing: Barriers and facilitators to consider prior to start-up

Sayna Bahraini, Alexander R. Maisonneuve, Yirong Liu, André Samson, Qian Ying, Fei Li, Li Yang & Philippe Robaey
Abstract Background The shared care pathway for ADHD is a program developed in Canada with two main strategies: (a) implement a shared care pathway between general practitioners (GPs) and specialists, and (b) step up or down care so that the patient is treated at the most appropriate level of care, depending on the complexity or outcome of their illness. The current study aims to identify the challenges and facilitators of implementing this program in a...

Evolutionary analysis of MIR156/157 family during floral induction in walnut (Juglans regia L.)

Xing Yuan, Jianxin Niu, Li Zhou, Shaowen Quan, Li Ma & Hang Xu
The miR156/157 family is widely identified in various plant species and plays important regulatory roles in floral induction and stress response. However, information regarding evolution of miR156/157s and their functions during floral induction in walnut (Juglans regia) remains unknown. In this study, four precursors and four mature miR156/157s were identified in J. regia via small RNA sequencing. We constructed phylogenetic trees for precursor sequences of miR156/157s from different plants, as well as J. regia. The...

Long non-coding RNA-PCGEM1 contributes to prostate cancer progression by sponging microRNA miR-129-5p to enhance chromatin licensing and DNA replication factor 1 expression

Qiao Fu, Fangfang Wang, Jun Yang, Wei Sun, Zhi Hu, Lv Xu, Hao Chu, Xiao Wang & Wei Zhang
PCGEM1 facilitates prostate cancer (PCa) progression. This study aimed to elucidate the mechanism of action of PCGEM1 in PCa. The expression of PCGEM1, microRNA miR-129-5p, chromatin licensing, and DNA replication factor 1 (CDT1) was detected by quantitative reverse transcription-PCR (qRT-PCR). A series of function experiments including cell counting kit-8 (CCK-8), caspase-3 activity, and cell cycle assays were performed to evaluate the influence of PCGEM1, miR-129-5p, and CDT1 on the biological processes of PCa cells. CyclinD1,...

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