287 Works
Serial two-photon tomography (STPT) of the brain through bi-channel image registration and deep learning segmentation (BIRDS)
Peng Fei
We have developed an open-source software called BIRDS (bi-channel image registration and deep learning segmentation) for the mapping and analysis of 3D microscopy data and applied this to the mouse brain. The BIRDS pipeline includes image pre-processing, bi-channel registration, automatic annotation, creation of a 3D digital frame, high-resolution visualization, and expandable quantitative analysis. This new bi-channel registration algorithm is adaptive to various types of whole-brain data from different microscopy platforms and shows dramatically improved registration...
Deletion of Polyamine Transport Protein PotD Exacerbates Virulence in Glaesserella (Haemophilus) parasuis in the Form of Non-biofilm-generated Bacteria in a Murine Acute Infection Model
Ke Dai, Zhen Yang, Xiaoyu Ma, Yung-Fu Chang, Sanjie Cao, Qin Zhao, Xiaobo Huang, Rui Wu, Yong Huang, Jing Xia, Qigui Yan, Xinfeng Han, Xiaoping Ma, Xintian Wen & Yiping Wen
Polyamines are small, polycationic molecules with a hydrocarbon backbone and multiple amino groups required for optimal cell growth. The potD gene, belonging to the ABC (ATP-binding cassette) transport system potABCD, encodes the bacterial substrate-binding subunit of the polyamine transport system, playing a pivotal role in bacterial metabolism and growth. The swine pathogen Glaesserella parasuis possesses an intact pot operon, and the studies presented here mainly examined the involvement of PotD in Glaesserella pathogenesis. A potD-deficient...
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)...
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...
Additional file 1 of Transcriptional dynamics of transposable elements when converting fibroblast cells of Macaca mulatta to neuroepithelial stem cells
Dahai Liu, Li Liu, Kui Duan, Junqiang Guo, Shipeng Li, Zhigang Zhao, Xiaotuo Zhang, Nan Zhou & Yun Zheng
Additional file 1 Supplementary Table S1. The expression levels of 1627 dynamically expressed genes in the reprogramming procedure of rhesus monkey fibroblast cells toward neuroephithelia stem cells. Supplementary Table S2 to S17. The enriched GO terms of genes in Cluster G0 to G15 of Figure 1A, respectively. Supplementary Table S18. The expression levels of 495 dynamically expressed TEs in the reprogramming procedure of rhesus monkey fibroblast cells toward neuroephithelia stem cells. Supplementary Table S19. The...
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,...
Trypanosoma evansi evades host innate immunity by releasing extracellular vesicles to activate TLR2-AKT signaling pathway
Ran Wei, Xin Li, Xiaocen Wang, Nan Zhang, Yuru Wang, Xichen Zhang, Pengtao Gong & Jianhua Li
Surra, one of the most important animal diseases with economic consequences in Asia and South America, is caused by Trypanosoma evansi. However, the mechanism of immune evasion by T. evansi has not been extensively studied. In the present study, T. evansi extracellular vesicles (TeEVs) were characterized and the role of TeEVs in T. evansi infection were examined. The results showed that T. evansi and TeEVs could activate TLR2-AKT pathway to inhibit the secretions of IL-12p40,...
Unique features of the m6A methylome and its response to drought stress in sea buckthorn (Hippophae rhamnoides Linn.)
Guoyun Zhang, Zhongrui Lv, Songfeng Diao, Hong Liu, Aiguo Duan, Caiyun He & Jianguo Zhang
In plants, recent studies have revealed that N6-methyladenosine (m6A) methylation of mRNA has potential regulatory functions of this mRNA modification in many biological processes. m6A methyltransferase, m6A demethylase and m6A-binding proteins can cause differential phenotypes, indicating that m6A may have critical roles in the plant. In this study, we depicted the m6A map of sea buckthorn (Hippophae rhamnoides Linn.) transcriptome. Similar to A. thaliana, m6A sites of sea buckthorn transcriptome is significantly enriched around the...
The type I-E CRISPR-Cas system influences the acquisition of blaKPC-IncF plasmid in Klebsiella pneumonia
Ying Zhou, Yu Tang, Pan Fu, Dongxing Tian, Lianhua Yu, Yunkun Huang, Gang Li, Meng Li, Yong Wang, Zehua Yang, Xiaogang Xu, Zhe Yin, Dongsheng Zhou, Laurent Poirel & Xiaofei Jiang
Klebsiella pneumoniae carbapenemase (KPC)-producing K. pneumoniae (KPC-KP) have disseminated worldwide and emerged as major threats to public health. Of epidemiological significance, the international pandemic of KPC-KP is primarily associated with CG258 isolates and blaKPC-IncF plasmids. CRISPR-Cas system is an adaptive immune system that can hinder gene expansion driven by horizontal gene transfer. Because of blaKPC-IncF plasmids are favored by CG258 K. pneumoniae, it was of interest to examine the co-distribution of CRISPR and blaKPC-IncF plasmids...
Inference on moderation effect with third-variable effect analysis – application to explore the trend of racial disparity in oncotype dx test for breast cancer treatment
Qingzhao Yu, Lu Zhang, Xiaocheng Wu & Bin Li
Third variable effect refers to the effect from a third variable that explains an observed relationship between an exposure and an outcome. Depending on whether there is causal relationship, typically, a third variable takes the format of a mediator or a confounder. A moderation effect is a special case of the third-variable effect, where the moderator and other variables have an interactive effect on the outcome. In this paper, we extend the R package ‘mma’...
Genetic identification of a major, novel and stably expressed QTL for effective tiller number from tetraploid wheat
Li Chen, Hua Li, Yanmei Liu, Juan Yang & Ying Hou
Effective tiller number (ETN) is an important factor affecting plant architecture and wheat yield. The reduction of genetic diversity in common wheat breeding forces us to explore new genetic resources for ETN from wheat related species to increase wheat yield. Here, a tetraploid wheat recombinant inbred line (RIL) population developed from the cross between a durum and a wild emmer accession was used to construct a genetic map using the wheat 55 K single nucleotide...
Genetic identification of a major, novel and stably expressed QTL for effective tiller number from tetraploid wheat
Li Chen, Hua Li, Yanmei Liu, Juan Yang & Ying Hou
Effective tiller number (ETN) is an important factor affecting plant architecture and wheat yield. The reduction of genetic diversity in common wheat breeding forces us to explore new genetic resources for ETN from wheat related species to increase wheat yield. Here, a tetraploid wheat recombinant inbred line (RIL) population developed from the cross between a durum and a wild emmer accession was used to construct a genetic map using the wheat 55 K single nucleotide...
Downregulation of Smad4 expression confers chemoresistance against imatinib mesylate to chronic myeloid leukemia K562 cells
Jiangzhao Zhang, Min Zhang, Yan Liang, Min Liu & Zhiping Huang
Objective: Imatinib mesylate (IM), a tyrosine kinase inhibitor, exhibits clinically prominent effects against chronic myeloid leukemia (CML); however, a few patients have shown resistance to IM treatment, resulting in disease progression. Smad4 is a tumor inhibitor that transduces TGF-β signaling and modulates genomic stability. Previous studies have indicated that decreased Smad4 expression played a bidirectional role in chemosensitivity in many types of cancers. Therefore, this study aims to evaluate the association between IM sensitivity and...
Spatiotemporal specificity of correlated DNA methylation and gene expression pairs across different human tissues and stages of brain development
Kangli Wang, Rujia Dai, Yan Xia, Jianghua Tian, Chuan Jiao, Tatiana Mikhailova, Chunling Zhang, Chao Chen & Chunyu Liu
DNA methylation (DNAm) that occurs on promoter regions is primarily considered to repress gene expression. Previous studies indicated that DNAm could also show positive correlations with gene expression. Both DNAm and gene expression profiles are known to be tissue- and development-specific. This study aims to investigate how DNAm and gene expression are coordinated across different human tissues and developmental stages, as well as the biological significance of such correlations. By analyzing 2,239 samples with both...
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...
Tumour suppressor TET2 safeguards enhancers from aberrant DNA methylation and epigenetic reprogramming in ERα-positive breast cancer cells
Ruitu Lyu, Xuguo Zhu, Yinghui Shen, Lijun Xiong, Lu Liu, Hang Liu, Feizhen Wu, Christian Argueta & Li Tan
Aberrant DNA methylation is an epigenetic hallmark of malignant tumours. The DNA methylation level is regulated by not only DNA methyltransferases (DNMTs) but also Ten-Eleven Translocation (TET) family proteins. However, the exact role of TET genes in breast cancer remains controversial. Here, we uncover that the ERα-positive breast cancer patients with high TET2 mRNA expression had better overall survival rates. Consistently, knockout of TET2 promotes the tumorigenesis of ERα-positive MCF7 breast cancer cells. Mechanistically, TET2...
Tumor suppressor TET2 safeguards enhancers from aberrant DNA methylation and epigenetic reprogramming in ERα-positive breast cancer cells
Ruitu Lyu, Xuguo Zhu, Yinghui Shen, Lijun Xiong, Lu Liu, Hang Liu, Feizhen Wu, Christian Argueta & Li Tan
Aberrant DNA methylation is an epigenetic hallmark of malignant tumors. The DNA methylation level is regulated by not only DNA methyltransferases (DNMTs) but also Ten-Eleven Translocation (TET) family proteins. However, the exact role of TET genes in breast cancer remains controversial. Here, we uncover that the ERα-positive breast cancer patients with high TET2 mRNA expression had better overall survival rates. Consistently, knockout of TET2 promotes the tumorigenesis of ERα-positive MCF7 breast cancer cells. Mechanistically, TET2...
Multiple Imputation Inference with Integer-Valued Point Estimates
Bo Liu & Jerome P. Reiter
We consider settings where an analyst of multiply imputed data desires an integer-valued point estimate and an associated interval estimate, for example, a count of the number of individuals with certain characteristics in a population. Even when the point estimate in each completed dataset is an integer, the multiple imputation point estimator, that is, the average of these completed-data estimators, is not guaranteed to be an integer. One natural approach is to round the standard...
An interpretation of the genetic polymorphism and population genetic background of Ankang Han population via a novel InDel panel
Wei Cui, Xiaoye Jin, Yating Fang, Qiong Lan, Jiangwei Lan, Man Chen, Shuyan Mei, Tong Xie & Bofeng Zhu
In this research, genotyping data of 43 InDel loci in 311 Han individuals in Ankang City, Shaanxi Province, China were detected using a self-developed five-dye multiplex amplification panel. The allelic frequencies and forensic parameters of all InDel loci were calculated. The combined power of discrimination and probability of exclusion values were 0.999 999 999 999 999 998 827 39 and 0.999 887 424, respectively, which demonstrated that this 43-InDel panel was powerful for individual identifications...
Protective effect of Qingre Huoxue decoction against myocardial infarction via PI3K/Akt autophagy pathway based on UPLC-MS, network pharmacology, and in vivo evidence
Zheng Jin, Wenbo Zhang, Yuan Luo, Xiushen Li, Lijin Qing, Qiang Zuo, Junfeng Fang & Wei Wu
Qingre Huoxue (QRHX) decoction, a traditional Chinese medicine, has been widely used to prevent and treat myocardial infarction (MI). This study elucidates the possible mechanisms of QRHX in preventing or treating MI in a rat model. The chemical constituents of QRHX were identified by UPLC-MS. Sprague-Dawley rats were randomly divided into the Sham (normal saline), Model (normal saline), QRHX-L, QRHX-M and QRHX-H group (n = 10 per group). QRHX decoction was administered by gavage to...
CGAS is a micronucleophagy receptor for the clearance of micronuclei
Mengmeng Zhao, Fei Wang, Juehui Wu, Yuanna Cheng, Yajuan Cao, Xiangyang Wu, Mingtong Ma, Fen Tang, Zhi Liu, Haipeng Liu & Baoxue Ge
Micronuclei are constantly considered as a marker of genome instability and very recently found to be a trigger of innate immune responses. An increased frequency of micronuclei is associated with many diseases, but the mechanism underlying the regulation of micronuclei homeostasis remains largely unknown. Here, we report that CGAS (cyclic GMP-AMP synthase), a known regulator of DNA sensing and DNA repair, reduces the abundance of micronuclei under genotoxic stress in an autophagy-dependent manner. CGAS accumulates...
PRDX1 activates autophagy via the PTEN-AKT signaling pathway to protect against cisplatin-induced spiral ganglion neuron damage
Wenwen Liu, Lei Xu, Xue Wang, Daogong Zhang, Gaoying Sun, Man Wang, Mingming Wang, Yuechen Han, Renjie Chai & Haibo Wang
Spiral ganglion neurons (SGNs) are auditory neurons that relay sound signals from the inner ear to the brainstem. The ototoxic drug cisplatin can damage SGNs and thus lead to sensorineural hearing loss (SNHL), and there are currently no methods for preventing or treating this. Macroautophagy/autophagy plays a critical role in SGN development, but the effect of autophagy on cisplatin-induced SGN injury is unclear. Here, we first found that autophagic flux was activated in SGNs after...
Atg9-centered multi-omics integration reveals new autophagy regulators in Saccharomyces cerevisiae
Di Peng, Chen Ruan, Shanshan Fu, Chengwen He, Jingzhen Song, Hui Li, Yiran Tu, Dachao Tang, Lan Yao, Shaofeng Lin, Ying Shi, Weizhi Zhang, Hao Zhou, Le Zhu, Cong Ma, Cheng Chang, Jie Ma, Zhiping Xie, Chenwei Wang & Yu Xue
In Saccharomyces cerevisiae, Atg9 is an important autophagy-related (Atg) protein, and interacts with hundreds of other proteins. How many Atg9-interacting proteins are involved in macroautophagy/autophagy is unclear. Here, we conducted a multi-omic profiling of Atg9-dependent molecular landscapes during nitrogen starvation-induced autophagy, and identified 290 and 256 genes to be markedly regulated by ATG9 in transcriptional and translational levels, respectively. Unexpectedly, we found most of known Atg proteins and autophagy regulators that interact with Atg9 were...
CREG1 improves the capacity of the skeletal muscle response to exercise endurance via modulation of mitophagy
HaiXu Song, Xiaoxiang Tian, Dan Liu, Meili Liu, Yanxia Liu, Jing Liu, Zhu Mei, Chenghui Yan & Yaling Han
CREG1 (cellular repressor of E1A-stimulated genes 1) is involved in tissue homeostasis and influences macroautophagy/autophagy to protect cardiovascular function. However, the physiological and pathological role of CREG1 in the skeletal muscle is not clear. Here, we established a skeletal muscle-specific creg1 knockout mouse model (creg1;Ckm-Cre) by crossing the Creg1-floxed mice (Creg1fl/fl) with a transgenic line expressing Cre recombinase under the muscle-specific Ckm (creatine kinase, muscle) promoter. In creg1;Ckm-Cre mice, the exercise time to exhaustion and...
CREG1 promotes lysosomal biogenesis and function
Jie Liu, Yanmei Qi, Joshua Chao, Pranav Sathuvalli, Leonard Y. Lee & Shaohua Li
CREG1 is a small glycoprotein which has been proposed as a transcription repressor, a secretory ligand, a lysosomal, or a mitochondrial protein. This is largely because of lack of antibodies for immunolocalization validated through gain- and loss-of-function studies. In the present study, we demonstrate, using antibodies validated for immunofluorescence microscopy, that CREG1 is mainly localized to the endosomal-lysosomal compartment. Gain- and loss-of-function analyses reveal an important role for CREG1 in both macropinocytosis and clathrin-dependent endocytosis....
Affiliations
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Huazhong University of Science and Technology287
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Chinese Academy of Medical Sciences & Peking Union Medical College187
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Shanghai Jiao Tong University165
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Fudan University164
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Sun Yat-sen University156
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Sichuan University145
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Zhejiang University143
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Chinese Academy of Sciences138
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Capital Medical University130
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Peking University129