3,036 Works

Data from: CXCL17 expression predicts poor prognosis and correlates with adverse immune infiltration in hepatocellular carcinoma

Li Li, Jing Yan, Jing Xu, Chao-Qun Liu, Zuo-Jun Zhen, Huan-Wei Chen, Yong Ji, Zhi-Peng Wu, Jian-Yuan Hu, Limin Zheng & Wan Yee Lau
CXC ligand 17 (CXCL17) is a novel CXC chemokine whose clinical significance remains largely unknown. In the present study, we characterized the prognostic value of CXCL17 in patients with hepatocellular carcinoma (HCC) and evaluated the association of CXCL17 with immune infiltration. We examined CXCL17 expression in 227 HCC tissue specimens by immunohistochemical staining, and correlated CXCL17 expression patterns with clinicopathological features, prognosis, and immune infiltrate density (CD4 T cells, CD8 T cells, B cells, natural...

Culture-related grief beliefs of Chinese Shidu parents: Development and psychometric properties of a new scale

Guangyuan Shi, Jun Wen, Xin Xu, Ningning Zhou, Jiani Wang, Yuqing Shi, Han Liu, Jianping Wang & Eva-Maria Stelzer
Background: In China, parents whose only-child dies and who have no living or adopted child are called Shidu parents. Negative thinking is assumed to contribute to the development of emotional problems in bereavement. Because grief cognitions are likely influenced by the concepts of Chinese traditional culture (e.g., family continuation), Shidu parents may hold specific culture-related grief beliefs about themselves or the world, which, in turn, could impede their recovery. Objective: This study developed a questionnaire...

OCTN2-targeted nanoparticles for oral delivery of paclitaxel: differential impact of the polyethylene glycol linker size on drug delivery in vitro, in situ, and in vivo

Longfa Kou, Rui Sun, Shuyi Xiao, Xiao Cui, Jin Sun, Vadivel Ganapathy, Qing Yao & Ruijie Chen
Targeted nanocarriers have shown great promise in drug delivery because of optimized drug behavior and improved therapeutic efficacy. How to improve the targeting efficiency of nanocarriers for the maximum possible drug delivery is a critical issue. Here we developed L-carnitine-conjugated nanoparticles targeting the carnitine transporter OCTN2 on enterocytes for improved oral absorption. As a variable, we introduced various lengths of the polyethylene glycol linker (0, 500, 1000, and 2000) between the nanoparticle surface and the...

Presence and persistence of hepatitis E virus RNA and proteins in human bone marrow

Lin Wang, Li Yan, Jieling Jiang, Yuyi Zhang, Qiyu He, Hui Zhuang & Ling Wang
Hepatitis E virus (HEV) infection is primarily manifesting as acute hepatitis, but extra-hepatic replication and injury are frequently reported. During the study period, we discovered two acute myeloid leukaemia (AML) patients infected with HEV genotype 3 and 4, respectively, and HEV RNA and/or viral proteins were persistently detected in the bone marrow of both patients. The finding suggests that HEV can replicate in human bone marrow as it may serve as a new target site...

Smart phase transformation system based on lyotropic liquid crystalline@hard capsules for sustained release of hydrophilic and hydrophobic drugs

Xuejuan Zhang, Yujun Xiao, Zhengwei Huang, Jintian Chen, Yingtong Cui, Boyi Niu, Ying Huang, Xin Pan & Chuanbin Wu
Smart phase transformation systems@hard capsule (SPTS@hard capsule) based on lyotropic liquid crystalline (LLC) were developed for oral sustained release in this study. Doxycycline hydrochloride (DOXY) and meloxicam (MLX) were used as hydrophilic and hydrophobic model drug, respectively. Two systems were added with different additives, that is, gelucire 39/01, PEG 1000 and Tween 80 to adjust their melting point and release profiles. The phase transformation of these systems could be triggered by water as well as...

Colistin-resistance gene mcr in clinical carbapenem-resistant Enterobacteriaceae strains in China, 2014–2019

Hong Huang, Ning Dong, Lingbin Shu, Jiayue Lu, Qiaoling Sun, Edward Wai-Chi Chan, Sheng Chen & Rong Zhang
To investigate whether introduction of colistin into the clinical settings selected colistin-resistant CRE, we performed molecular epidemiological study of 1868 CRE strains collected from different geographical locales in China during the period 2014–2019. 1755 (96.18%) isolates carried the carbapenemase genes blaKPC and blaNDM; 14 Escherichia coli isolates (0.75%) carrying mcr-1 and blaNDM (MCR-CREC) were also identified. Importantly, the number and relative prevalence of MCR-CREC isolates increased from 5 (0.41%) to 9 (1.38%) after introduction of...

Preventing Candida albicans from subverting host plasminogen for invasive infection treatment

Si-Min Chen, Zui Zou, Shi-Yu Guo, Wei-Tong Hou, Xi-Ran Qiu, Yu Zhang, Li-Jun Song, Xin-Yu Hu, Yuan-Ying Jiang, Hui Shen & Mao-Mao An
Candida albicans is a common fungal pathogen in humans that colonizes the skin and mucosal surfaces of the majority healthy individuals. How C. albicans disseminates into the bloodstream and causes life-threatening systemic infections in immunocompromised patients remains unclear. Plasminogen system activation can degrade a variety of structural proteins in vivo and is involved in several homeostatic processes. Here, for the first time, we characterized that C. albicans could capture and “subvert” host plasminogen to invade...

Establishment of replication-competent vesicular stomatitis virus-based recombinant viruses suitable for SARS-CoV-2 entry and neutralization assays

Hongyue Li, Chaoyue Zhao, Yuhang Zhang, Fei Yuan, Qi Zhang, Xuanling Shi, Linqi Zhang, Chengfeng Qin & Aihua Zheng
Replication-competent vesicular stomatitis virus (VSV)-based recombinant viruses are useful tools for studying emerging and highly pathogenic enveloped viruses in level 2 biosafety facilities. Here, we used a replication-competent recombinant VSVs (rVSVs) encoding the spike (S) protein of SARS-CoV-2 in place of the original G glycoprotein (rVSV-eGFP-SARS-CoV-2) to develop a high-throughput entry assay for SARS-CoV-2. The S protein was incorporated into the recovered rVSV-eGFP-SARS-CoV-2 particles, which could be neutralized by sera from convalescent COVID-19 patients. The...

Identification of novel tetracycline resistance gene tet(X14) and its co-occurrence with tet(X2) in a tigecycline-resistant and colistin-resistant Empedobacter stercoris

Yingying Cheng, Yong Chen, Yang Liu, Yuqi Guo, Yanzi Zhou, Tingting Xiao, Shuntian Zhang, Hao Xu, Yunbo Chen, Tongling Shan, Yonghong Xiao & Kai Zhou
Tigecycline is one of the last-resort antibiotics to treat severe infections. Recently, tigecycline resistance has sporadically emerged with an increasing trend, and Tet(X) family represents a new resistance mechanism of tigecycline. In this study, a novel chromosome-encoded tigecycline resistance gene, tet(X14), was identified in a tigecycline-resistant and colistin-resistant Empedobacter stercoris strain ES183 recovered from a pig fecal sample in China. Tet(X14) shows 67.14-96.39% sequence identity to the other variants [Tet(X) to Tet(X13)]. Overexpression of Tet(X14)...

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...

Risk factors associated with COVID-19 infection: a retrospective cohort study based on contacts tracing

Tao Liu, Wenjia Liang, Haojie Zhong, Jianfeng He, Zihui Chen, Guanhao He, Tie Song, Shaowei Chen, Ping Wang, Jialing Li, Yunhua Lan, Mingji Cheng, Jinxu Huang, Jiwei Niu, Liang Xia, Jianpeng Xiao, Jianxiong Hu, Lifeng Lin, Qiong Huang, Zuhua Rong, Aiping Deng, Weilin Zeng, Jiansen Li, Xing Li, Xiaohua Tan … & Wenjun Ma
This study aimed to estimate the attack rates, and identify the risk factors of COVID-19 infection. Based on a retrospective cohort study, we investigated 11,580 contacts of COVID-19 cases in Guangdong Province from 10 January to 15 March 2020. All contacts were tested by RT-PCR to detect their infection of SARS-COV-2. Attack rates by characteristics were calculated. Logistic regression was used to estimate the risk factors of infection for COVID-19. A total of 515 of...

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...

Two new amide glycosides with anti-inflammatory activity from the leaves of Streblus ilicifolius (Vidal) Corner

Yan Huang, Xishan Huang, Guobiao Tian, Wenxiu Zhang, Shanshan Su, Xia Xu, Jun Li & Buming Liu
Two new amide glycosides, streblusoamides A (1) and B (2), along with 11 known compounds (3–13) were isolated from the leaves of Streblus ilicifolius. The structures of the isolates were elucidated by spectroscopic methods. All of the isolates were tested for inhibition of NO production in lipopolysaccharide (LPS)-induced RAW 264.7 cells to investigate their anti-inflammatory effects. The results revealed that compounds 1, 5 and 6 moderately inhibited the release of NO production with IC50 values...

Two new amide glycosides with anti-inflammatory activity from the leaves of Streblus ilicifolius (Vidal) Corner

Yan Huang, Xishan Huang, Guobiao Tian, Wenxiu Zhang, Shanshan Su, Xia Xu, Jun Li & Buming Liu
Two new amide glycosides, streblusoamides A (1) and B (2), along with 11 known compounds (3–13) were isolated from the leaves of Streblus ilicifolius. The structures of the isolates were elucidated by spectroscopic methods. All of the isolates were tested for inhibition of NO production in lipopolysaccharide (LPS)-induced RAW 264.7 cells to investigate their anti-inflammatory effects. The results revealed that compounds 1, 5 and 6 moderately inhibited the release of NO production with IC50 values...

Biological mechanisms of growth performance and meat quality in porcine muscle tissue

Chen Fang, Fei Guo, Xiaoqi Zhao, Zining Zhang, Junlan Lu, Hongbin Pan, Taojie Xu, Weizhen Li, Minghua Yang, Ying Huang, Yanguang Zhao & Sumei Zhao
Growth performance and meat quality are important traits for pig production. The aim of the present study was to investigate the molecular mechanisms underlying growth performance and meat quality, and to identify novel target molecules for predicting the growth performance and meat quality. The differentially expressed genes (DEGs) in Diannan small ears pigs (DSP) and Landrace pigs (LP) were assessed by RNA-sequencing analyzing technology. A total of 339 DEGs were obtained between DSP and LP....

Convergence of carbapenem resistance and hypervirulence in a highly-transmissible ST11 clone of K. pneumoniae: An epidemiological, genomic and functional study

Ping Li, Qiqiang Liang, Wugao Liu, Beiwen Zheng, Lizhang Liu, Wei Wang, Zhijiang Xu, Man Huang & Youjun Feng
Co-occurrence of hypervirulence and KPC-2 carbapenem resistant phenotypes in a highly-transmissible ST11 clone ofKlebsiella pneumoniae has elicited deep concerns from public health stand point. To address this puzzle, we conducted a large-scale epidemiological, clinical and genomic study of K. pneumonia ST11 clones with both hypervirulence and carbapenem resistance in two tertiary hospitals in Zhejiang province. Most of the patients (15/23) were diagnosed with exclusively carbapenem-resistant K. pneumoniae (CRKP) infections. Ten death cases were reported, some...

Effectiveness of electroacupuncture for thin endometrium in infertile women: study protocol for a single-blind, randomized controlled trial

Fangyuan Li, Hua Lu, Xinxin Wang, Qi Zhang, Qianchen Liu & Tong Wang
Abstract Background Thin endometrium negatively impacts the reproductive function. Current treatments for thin endometrium do not always improve endometrial receptivity. Preliminary evidence suggests that electroacupuncture could have potential therapy for thin endometrium in infertile women. Thus, this randomized controlled trial was designed to test whether electroacupuncture can improve endometrial receptivity in infertile women with thin endometrium. Methods This study is a randomized, single-blinded, controlled, clinical trial. A total of 142 eligible patients will be recruited...

The synergistic antitumor activity of 3-(2-nitrophenyl) propionic acid-paclitaxel nanoparticles (NPPA-PTX NPs) and anti-PD-L1 antibody inducing immunogenic cell death

Xiao-Chuan Duan, Li-Yuan Peng, Xin Yao, Mei-Qi Xu, Hui Li, Shuai-Qiang Zhang, Zhuo-Yue Li, Jing-Ru Wang, Zhen-Han Feng, Guang-Xue Wang, Ai Liao, Ying Chen & Xuan Zhang
Cancer immunotherapy is a strategy that is moving to the frontier of cancer treatment in the current decade. In this study, we show evidence that 3-(2-nitrophenyl) propionic acid-paclitaxel nanoparticles (NPPA-PTX NPs), act as immunogenic cell death (ICD) inducers, stimulating an antitumor response which results in synergistic antitumor activity by combining anti-PD-L1 antibody (aPD-L1) in vivo. To investigate the antitumor immunity induced by NPPA-PTX NPs, the expression of both ICD marker calreticulin (CRT) and high mobility...

MicroRNA miR-188-5p as a mediator of long non-coding RNA MALAT1 regulates cell proliferation and apoptosis in multiple myeloma

Hui Liu, Zuofei Chi, Hong Jin & Wei Yang
Multiple myeloma (MM), a malignancy of plasma cells mainly derived from the bone marrow, has remained incurable generally. LncRNA MALAT1 has been reported to be upregulated in the MM cells and knockdown of MALAT1 inhibited MM cell cycle progression and enhanced cell apoptosis. Online target prediction showed that two target sites for MALAT1 existed in miR-188-5p, which has been identified as a tumor suppressor in other types of cancers. However, the role of miR-188-5p in...

A further look at quantitative trait loci for growth and fatness traits in a White Duroc × Erhualian F3 intercross population

Zheng Deng, Tao Huang, Guorong Yan, Bin Yang, Zhiyan Zhang, Shijun Xiao, Huashui Ai & Lusheng Huang
Genetic analysis of porcine growth and fatness traits is beneficial to the swine industry and provides a reference to understand human obesity. Here, we obtained 29 growth and fatness traits for 473 individuals from a White Duroc × Erhualian F3 intercross population. Basic statistical analyses showed that: (1) Positive correlations between different-stage body weights were detected, the shorter the time interval the stronger the correlation. (2) Strong correlations existed in the paired fatness traits. (3)...

Network analysis of PTSD in college students across different areas after the COVID-19 epidemic

Rui Sun, Junjun Qi, Jiali Huang & Xiao Zhou
Background: Various studies have examined the psychological ‘typhoon eye’ and ‘ripple’ effects in mental disorders following COVID-19. However, these studies only considered the disorders as entities and assessed severity, and overlooked the differences in specific symptoms of disorders. Objectives: This aim of the study is to assess the psychological typhoon eye and ripple effects at the symptom-level in posttraumatic stress disorder (PTSD), which is considered as a common psychopathology following the COVID-19 epidemic. Method: In...

Nanoparticle-mediated delivery of Tanshinone IIA reduces adverse cardiac remodeling following myocardial infarctions in a mice model: role of NF-κB pathway

Shuai Mao, Lei Wang, Peipei Chen, Yong Lan, Rui Guo & Minzhou Zhang
Our previous works have shown that tanshinone IIA inhibited maladaptive extracellular matrix remodeling in cardiac fibroblasts implicating its potential role in treating of pathologic cardiac remodeling. However, the intrinsically poor solubility and bioavailability of tanshinone IIA hindered its clinical application. Here we develop monomethoxy-poly (ethylene glycol)-poly (lactic acid)-D-α-Tocopheryl polyethylene glycol 1000 succinate (mPEG-PLA-TPGS) nanoparticle incorporating tanshinone IIA (tanshinone IIA-NPs) and study its efficacy in post-infarction left ventricular (LV) remodeling. Male C57BL/6 mice underwent left coronary...

The antagonist of P2Y11 receptor NF157 ameliorates oxidized LDL-induced vascular endothelial inflammation

Yun Kuang, Hui Liu, Siyu Guo, Yufei Wang, Huijuan Zhang & Yanxiang Qiao
Atherosclerosis is the chronic inflammatory disease, and inflammation-elicited endothelial activation is an early event in the development of atherosclerosis. The P2Y11 receptor is a purinergic receptor and a member of the P2 family of G coupled protein which has been shown to modulate vascular function. Progress in the study of purine receptors has been tremendous and these receptors have become pharmacological targets for various diseases. In this study, we show that the P2Y11R antagonist NF157...

Comparative study of bioinformatic tools for the identification of chimeric RNAs from RNA Sequencing

Sandeep Singh & Hui Li
Chimeric RNAs are gaining more and more attention as they have broad implications in both cancer and normal physiology. To date, over 40 chimeric RNA prediction methods have been developed to facilitate their identification from RNA sequencing data. However, a limited number of studies have been conducted to compare the performance of these tools; additionally, previous studies have become outdated as more software tools have been developed within the last three years. In this study,...

HRM and CRAC in MxIRT1 act as iron sensors to determine MxIRT1 vesicle-PM fusion and metal transport

Song Tan, Xi Zhang, Qi Zhang, Yu-Meng Li, Peng Zhang & Li-Ping Yin
The IRON-REGULATED TRANSPORTER1 (IRT1) is critical for iron uptake in roots, and its exocytosis to the plasma membrane (PM) is regulated by detergent-resistant membranes. However, studies on IRT1 exocytosis and function in response to iron status are limited. Presently, we found that the histidine-rich motif (HRM) of MxIRT1 could bind to iron directly and HRM determined the delivery of MxIRT1 to the PM, after which the cholesterol recognition amino acid consensus (CRAC) motif-regulated MxIRT1 mediated...

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  • Sun Yat-sen University Cancer Center
  • Sun Yat-sen University
  • Shanghai Jiao Tong University
  • Chinese Academy of Medical Sciences & Peking Union Medical College
  • Zhejiang University
  • Sichuan University
  • Fudan University
  • Capital Medical University
  • Huazhong University of Science and Technology
  • Shandong University