1,548 Works

Macrophage-derived exosomes accelerate wound healing through their anti-inflammation effects in a diabetic rat model

Mengdie Li, Tao Wang, He Tian, Guohua Wei, Liang Zhao & Yijie Shi
Chronic, subclinical inflammation was often observed in the diabetic wound area, causing inadequate and delayed wound-healing effects by failing to initiate cell migration, proliferation, and extracellular matrix deposition. Therefore, we presented macrophage-derived exosomes (Exos) and explored their potential for inhibiting inflammation and accelerating diabetic wound healing in a skin defect, diabetic rat model. A thorough investigation demonstrated that Exos exerted anti-inflammatory effects by inhibiting the secretion of pro-inflammatory enzymes and cytokines. Furthermore, they accelerated the...

MicroRNA-409-5p promotes retinal neovascularization in diabetic retinopathy

Ying Wang, Wenwen Lin & Jianghua Ju
Background: Retinal neovascularization, which is characterized by the increased proliferation, migration, and tube formation of retinal microvascular endothelial cells (RMECs), contributes to the progression of diabetic retinopathy (DR). MiR-409-5p has been reported to be upregulated in peripheral blood of DR patients and in vascular endothelial growth factor (VEGF)-induced RMECs. However, the role of miR-409-5p in retinal neovascularization of DR remains unelucidated. Method: The expression of miR-409-5p was measured in retinal tissues of streptozocin-induced and db/db...

Increasing SARS-CoV-2 nucleic acid testing capacity during the COVID-19 epidemic in Beijing: experience from a general hospital

Qi Wang, Xiaotao Zhao, Zhihong Yue, Xiaohui Bai, Huiying Rao, Na Han, Tianbing Wang, Hui Wang & Baoguo Jiang
Under the ongoing COVID-19 prevention and control measures in China, increasing the laboratory severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) nucleic acid testing capacity has become the top priority. Since the COVID-19 outbreak in Xinfadi market in Beijing in June 2020, large-scale screening of key populations has been carried out, challenging the nucleic acid testing capabilities of hospital laboratories. Therefore, within 48 hours, Peking University People’s Hospital (PKUPH) transformed a non-nucleic acid testing laboratory into...

BNIP3L/NIX degradation leads to mitophagy deficiency in ischemic brains

Xiaoli Wu, Yanrong Zheng, Mengru Liu, Yue Li, Shijia Ma, Weidong Tang, Wenping Yan, Ming Cao, Wanqing Zheng, Lei Jiang, Jiaying Wu, Feng Han, Zhenghong Qin, Liang Fang, Weiwei Hu, Zhong Chen & Xiangnan Zhang
Mitophagy, the elimination of damaged mitochondria through autophagy, promotes neuronal survival in cerebral ischemia. Previous studies found deficient mitophagy in ischemic neurons, but the mechanisms are still largely unknown. We determined that BNIP3L/NIX, a mitophagy receptor, was degraded by proteasomes, which led to mitophagy deficiency in both ischemic neurons and brains. BNIP3L exists as a monomer and homodimer in mammalian cells, but the effects of homodimer and monomer on mitophagy are unclear. Site-specific mutations in...

Whole-genome sequencing of rough Brucella melitensis in China provides insights into its genetic features

Xiaowen Yang, Dongri Piao, Lingling Mao, Bo Pang, Hongyan Zhao, Guozhong Tian, Hai Jiang & Biao Kan
Brucella spp. can cause the zoonosis brucellosis, which affects public health and safety and even economic development. B. melitensis has a smooth phenotype, while 28 B. melitensis isolates had a rough phenotype in 2018. In this study, rough phenotype detection and whole genome sequencing methods were used to analyze the genetic features of rough B. melitensis. A drug susceptibility test was also performed. The results showed that the rough B. melitensis strains originated from strains...

The lipoprotein NlpD in Cronobacter sakazakii responds to acid stress and regulates macrophage resistance and virulence by maintaining membrane integrity

Xuemeng Ji, Ping Lu, Juan Xue, Ning Zhao, Yan Zhang, Lu Dong, Xuejiao Zhang, Ping Li, Yaozhong Hu, Jin Wang, Bowei Zhang, Jingmin Liu, Huan lv & Shuo Wang
Cronobacter sakazakii, an emerging opportunistic pathogen, is implicated in severe foodborne outbreak infections in premature and full-term infants. Generally, acid tolerance is vital for the pathogenesis of foodborne pathogens; however, its role in C. sakazakii virulence remains largely unknown. To screen out acid-tolerance determinants from transposon mutants, anovel counterselection method using gentamicin and acid was developed. Using the counterselection method and growth assay, we screened several acid-sensitive mutants and found that nlpD encodes an acid-resistance...

Long non-coding RNA DUXAP8 promotes the cell proliferation, migration, and invasion of papillary thyroid carcinoma via miR-223-3p mediated regulation of CXCR4

Yan Liu, Hejia Zhang, Hui Wang, Jiarui Du, Peng Dong, Meihan Liu & Yuanqiang Lin
Papillary thyroid carcinoma (PTC) is a differentiated type of thyroid malignancy with a high incidence. Long non-coding RNA (lncRNA) DUXAP8 has been reported to participate in the proliferation, migration, and invasion of several cancer types. However, its association with PTC has not yet been reported. The current study aimed to investigate the role of DUXAP8 in PTC and revealed the underlying mechanisms. The expression of DUXAP8 was knocked down in two PTC cell lines and...

Genomic population structure of Helicobacter pylori Shanghai isolates and identification of genomic features uniquely linked with pathogenicity

Feng Yang, Jinghao Zhang, Su Wang, Zhaoyang Sun, Jun Zhou, Feng Li, Yue Liu, Li Ding, Yixin Liu, Wenjing Chi, Tao Liu, Yongqun He, Ping Xiang, Zhijun Bao, Michal A. Olszewski, Hu Zhao & Yanmei Zhang
Severe Helicobacter pylori-linked gastric disorders are especially prevalent in the East Asia region. The ability of H. pylori to cause different clinical outcomes is thought to be associated with unique sets of its genetic features. However, only few genetic features have been definitively linked to specific gastrointestinal pathologies. Genome heterogeneity of clinical H. pylori strains from patients with four different gastric disorders was studied to explore the population structure and molecular genomic features and their...

Long non-coding RNA LINC00649 regulates YES-associated protein 1 (YAP1)/Hippo pathway to accelerate gastric cancer (GC) progression via sequestering miR-16-5p

Hongyan Wang, Xin Di, Yingjie Bi, Shidong Sun & Tao Wang
Although long non-coding RNA (LncRNA) LINC00649 is reported to be closely associated with acute myeloid leukemia (AML), prostate cancer and colorectal cancer, its role in regulating other types of cancer, such as gastric cancer (GC), has not been studied. This study analyzed the expression status of LINC00649 in GC tissues and cells by performing Real-Time qPCR analysis, and we found that LINC00649 tended to be enriched in cancerous tissues and cells but not in their...

A virulent Bacillus cereus strain from deep-sea cold seep induces pyroptosis in a manner that involves NLRP3 inflammasome, JNK pathway, and lysosomal rupture

Yan Zhao, Shuai Jiang, Jian Zhang, Xiao-Lu Guan, Bo-Guang Sun & Li Sun
Recent studies indicate that the Bacillus species is distributed in deep-sea environments. However, no specific studies on deep-sea Bacillus cereus have been documented. In the present work, we isolated a B. cereus strain, H2, from the deep-sea cold seep in South China Sea. We characterized the pathogenic potential of H2 and investigated H2-induced death of different types of cells. We found that H2 was capable of tissue dissemination and causing acute mortality in mice and...

MicroRNA-146b-3p regulates the dysfunction of vascular smooth muscle cells via repressing phosphoinositide-3 kinase catalytic subunit gamma

Xijing Zhuang, Feng Gao, Lei Shi, Wei Liu, Wenjun Wang, Xuezhi He & Yang Gao
MicroRNAs are crucial regulators in the phenotype switch of vascular smooth muscle cells (VSMCs). Nonetheless, the role of miR-146b-3p in VSMCs remains unclear. In the present study, platelet-derived growth factor-BB (PDGF-BB) at different concentrations was employed to stimulate VSMCs for different times, to establish the model of VSMC dysfunction. The relative expression of miR-146b-3p was quantified by quantitative real-time polymerase chain reaction (qRT-PCR). The proliferation of VSMCs was measured by BrdU assay. Flow cytometry analysis...

Two new sesquiterpenoid lactone derivatives from Lindera aggregata

Song-Song Wen, Yan Wang, Jia-Ping Xu, Qi Liu, Lei Zhang, Jing Zheng, Lin Li, Na Zhang, Xin Liu, Yu-Wen Xu & Zhen-Liang Sun
Two new sesquiterpenoid lactone derivatives, linderin A (1) and linderin B (2) comprising a sesquiterpenoid lactone and a methyl geranylhomogentisate moiety together with six known compounds were isolated from the roots of Lindera aggregata. Their chemical structures were elucidated using extensive spectroscopic analysis including 1 D, 2 D NMR, and HR-ESI-MS data and compared with previously reported data. The absolute configurations of 1 and 2 were assigned based on the electronic circular dichroism calculation. Compound...

Additional file 1 of Effect of Baduanjin exercise intervention on cognitive function and quality of life in women with breast cancer receiving chemotherapy: study protocol of a randomized controlled trial

Xiao-Lin Wei, Ru-Zhen Yuan, Yong-Mei Jin, Shu Li, Ming-Yue Wang, Jie-Ting Jiang, Cai-Qin Wu & Kun-Peng Li
Additional file 1:. SPIRIT 2013 checklist: recommended items to address in a clinical trial protocol and related documents.

STAT3-induced ZBED3-AS1 promotes the malignant phenotypes of melanoma cells by activating PI3K/AKT signaling pathway

Yang Wang, Nan Lou, Min Zuo, Fuqiang Zhu, Yan He, Zhiqiang Cheng & Xiaomei Wang
Melanoma is considered as the most frequent primary malignancy occurring in skin. Accumulating studies have suggested that long non-coding RNAs (lncRNAs) play critical parts in multiple cancers. In this study, we explored the molecular mechanism of ZBED3 antisense RNA 1 (ZBED3-AS1) in melanoma. We observed that ZBED3-AS1 expression was remarkably up-regulated in melanoma tissues, and high ZBED3-AS1 level was linked to unsatisfactory survival of melanoma patients. Then, we discovered that ZBED3-AS1 was overexpressed in melanoma...

Efficacy of statins on renal function in patients with chronic kidney disease: a systematic review and meta-analysis

Lin Zhao, Shu Li & Ying Gao
Studies have shown that the use of statins could significantly improve lipid profiles; however, it remains controversial whether the use of statins could improve renal function in patients with chronic kidney disease (CKD). Therefore, we conducted a meta-analysis of randomized controlled trials (RCTs) to evaluate the effects of statins on renal function in patients with CKD. We systematically searched PubMed, EMBASE, and the Cochrane Library databases for eligible RCTs from inception to October 2020. Pooled...

M. tuberculosis CRISPR/Cas proteins are secreted virulence factors that trigger cellular immune responses

Jianjian Jiao, Nan Zheng, Wenjing Wei, Joy Fleming, Xingyun Wang, Zihui Li, Lili Zhang, Yi Liu, Zongde Zhang, Adong Shen, Li Chuanyou, Lijun Bi & Hongtai Zhang
The role of prokaryotic CRISPR/Cas system proteins as a defensive shield against invasive nucleic acids has been studied extensively. Non-canonical roles in pathogenesis involving intracellular targeting of certain virulence-associated endogenous mRNA have also been reported for some Type I and Type II CRISPR/Cas proteins, but no such roles have yet been established for Type III system proteins. Here, we demonstrate that M. tuberculosis (Type III-A system) CRISPR/Cas proteins Csm1, Csm3, Csm5, Csm6, and Cas6 are...

Prognostic and immunological significance of metastasis associated lung adenocarcinoma transcript 1 among different kinds of cancers

Lili Guo, Xiuwen Zhang, Hongli Pan, Yang Li, Jing Wang, Lin Li, Yafang Dong, Xinxin Du, Jun Chen & Fengjie Guo
LncRNAs belong to the type of noncoding RNA transcripts, which exceed 200 nucleotides in size. MALAT1 as one of the earlier identified lncRNAs in cancer is investigated by more and more scientific researchers. Expression, clinical significance and function of MALAT1 in pan-cancer exist as big difference. To detect the expression and clinical significance of MALAT1 gene precisely and comprehensively among different kinds of cancers, some classical databases such as GEPIA, TIMER, KM Plotter, and PrognoScan...

Quantitative proteomics reveals that dormancy-related proteins mediate the attenuation in mycobacterium strains

Hong Wang, Li Wan, Jiahui Shi, Tao Zhang, Huiming Zhu, Songhao Jiang, Shuhong Meng, Shujia Wu, Jinshuai Sun, Lei Chang, Liqun Zhang, Kanglin Wan, Jiaqi Yang, Xiuqin Zhao, Haican Liu, Yao Zhang, Erhei Dai & Ping Xu
Although members of the Mycobacterium tuberculosis complex (MTBC) exhibit high similarity, they are characterized by differences with respect to virulence, immune response, and transmissibility. To understand the virulence of these bacteria and identify potential novel therapeutic targets, we systemically investigated the total cell protein contents of virulent H37Rv, attenuated H37Ra, and avirulent M. bovis BCG vaccine strains at the log and stationary phases, based on tandem mass tag (TMT) quantitative proteomics. Data analysis revealed that...

Yiguanjian decoction inhibits macrophage M1 polarization and attenuates hepatic fibrosis induced by CCl4/2-AAF

Ying Xu, Wen Xu, Wei Liu, Gaofeng Chen, Shili Jiang, Jiamei Chen, Xun Jian, Hua Zhang, Ping Liu & Yongping Mu
Our previous studies indicated that Yiguanjian decoction (YGJ) has an anti-hepatic-fibrosis effect and could regulate macrophage status. To elucidate the mechanism of YGJ in regulating macrophages. Liver cirrhosis was induced by CCl4 for 12 weeks combined with 2-acetylaminofluorene (2-AAF) for the last 4 weeks in male Wistar rats. YGJ (3.56 mg/kg) orally administered in the last 4 weeks, and SORA (1 mg/kg) as control. In vitro, RAW264.7 cells were treated with lipopolysaccharides (LPSs) to induce...

Efficacy and safety of novel-targeted drugs in the treatment of pulmonary arterial hypertension: a Bayesian network meta-analysis

Wenhai Fu, Wenjun He, Yuexin Li, Yangxiao Chen, Jingyi Liang, Hui Lei, Lin Fu, Yanghang Chen, Ni Ren, Qian Jiang, Yi Shen, Ran Ma, Tao Wang, Xinni Wang, Nuofu Zhang, Dakai Xiao & Chunli Liu
Background: Pulmonary arterial hypertension (PAH) is a severe and fatal clinical syndrome characterized by high blood pressure and vascular remodeling in the pulmonary arterioles, which is also a rapidly progressing disease of the lung vasculature with a poor prognosis. Although PAH medication made great advances in recent years, the efficacy and safety of the medication are unsatisfactory. Therefore, we aimed to update and expand previous studies to explore the efficacy and safety of PAH-targeted medications....

Efficacy and safety of novel-targeted drugs in the treatment of pulmonary arterial hypertension: a Bayesian network meta-analysis

Wenhai Fu, Wenjun He, Yuexin Li, Yangxiao Chen, Jingyi Liang, Hui Lei, Lin Fu, Yanghang Chen, Ni Ren, Qian Jiang, Yi Shen, Ran Ma, Tao Wang, Xinni Wang, Nuofu Zhang, Dakai Xiao & Chunli Liu
Background: Pulmonary arterial hypertension (PAH) is a severe and fatal clinical syndrome characterized by high blood pressure and vascular remodeling in the pulmonary arterioles, which is also a rapidly progressing disease of the lung vasculature with a poor prognosis. Although PAH medication made great advances in recent years, the efficacy and safety of the medication are unsatisfactory. Therefore, we aimed to update and expand previous studies to explore the efficacy and safety of PAH-targeted medications....

Identification of hsa_circ_0002024 as a prognostic competing endogenous RNA (ceRNA) through the hsa_miR_129-5p/Anti-Silencing Function 1B Histone Chaperone (ASF1B) axis in renal cell carcinoma

Zhe Chen, Dehua Ou, Zhuangkai Huang & Peilin Shen
We aimed to identify novel circular RNAs (circRNAs) as prognostic competing endogenous RNAs (ceRNAs) to serve as genetic biomarkers and therapeutic targets for renal cell carcinoma (RCC). High-throughput sequencing data of circRNAs from Gene Expression Omnibus (GEO) and of microRNAs (miRNAs) and messenger RNAs (mRNAs) from The Cancer Genome Atlas (TCGA) were retrieved to identify differentially expressed RNAs (DERNAs). DEmRNAs were subjected to weighted gene coexpression network analysis (WGCNA) to identify prognostic DEmRNA (proDEmRNA) modules....

N(6)-adenosine-methyltransferase-14 promotes glioma tumorigenesis by repressing argininosuccinate synthase 1 expression in an m6A-dependent manner

You-Qing Miao, Wei Chen, Jianfeng Zhou, Qiyang Shen, Ying Sun, Tao Li & Sheng-Chan Wang
Glioma is one of the leading causes of tumor-related deaths worldwide, but its potential mechanism remains unclear. This study aimed to explore the biological role and potential mechanism of argininosuccinate synthase 1 (ASS1) in glioma. The relative expression levels of ASS1 in glioma specimens and cell lines were calculated by quantitative reverse transcription-polymerase chain reaction (qRT-PCR) and Western blotting. The biological functions of ASS1 were demonstrated using the 5-ethynyl-2ʹ-deoxyuridine (EdU) assay, transwell assay, and in...

Prevalence of major morbidities and outcome of all hospitalized neonates. A retrospective cohort study of Huai’an neonatal survivals

Yaling Xu, Xiaoqin Zhu, Hui Wang, Zhaojun Pan, Xiaoqiong Li, Xiaojing Guo, Hongni Yue & Bo Sun
Reliable data for causal implication of neonatal survival in China are lacking. We assumed that by analyzing surviving data of in-hospital neonatal care based on all livebirths in Huai’an, prevalence of neonatal morbidity, mortality and causal relations may be derived comprehensively. Data of all regionally hospitalized neonates were retrospectively linked with corresponding whole livebirths (59,056) in 2015 as a cohort. Diagnoses of diseases and causes of deaths were redefined and categorized. Disease patterns, prevalence of...

Classification and expression analysis of cucumber (Cucumis sativus L.) callose synthase (CalS) family genes and localization of CsCalS4, a protein involved in pollen development

Hongyun Wang, Shoujun Cao, Tao Li, Lili Zhang, Jiangang Yao, Xiubo Xia & Ruiqing Zhang
Callose plays an important role in plant development and response to multiple biotic and abiotic stresses. Callose synthase (CalS; EC 2.4.1.34), the main enzyme in callose synthesis, has been studied in a number of crops but not in cucumber (Cucumis sativus L.). In this study, 10 genes encoding putative callose synthase were identified and classified into four clades. Expression levels of the 10 CsCalS genes, which varied considerably, were detected in most analyzed organs. Transcription...

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