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Science China. Life Sciences

Yan Xiong, Xiangfang Tang, Qingshi Meng, Hongfu Zhang
Ammonia has been considered the contaminant primarily responsible for respiratory disease in poultry. Even though it can cause tracheal lesions, its adverse effects on the trachea have not been sufficiently studied. The present study investigated tracheal changes in Arbor Acres broilers (Gallus gallus) induced by high concentration of ammonia using isobaric tag for relative and absolute quantification (iTRAQ)-based proteome analysis. In total, 3,706 proteins within false discovery rate of 1% were identified, including 119 significantly differentially expressed proteins...
October 17, 2016: Science China. Life Sciences
Xiaolu Zhao, Yuanyuan Wang, Yurui Wang, Yifan Liu, Shan Gao
DNA replication elongation is tightly controlled by histone-modifying enzymes. Our previous studies showed that the histone methytransferase TXR1 (Tetrahymena Trithorax related protein 1) specifically catalyzes H3K27 monomethylation and affects DNA replication elongation in Tetrahymena thermophila. In this study, we investigated whether TXR1 has a substrate preference to the canonical H3 over the replacement variant H3.3. We demonstrated by histone mutagenesis that K27Q mutation in H3.3 further aggravated the replication stress phenotype of K27Q mutation in canonical H3, supporting H3...
October 17, 2016: Science China. Life Sciences
Huiling Wu, Jieqiong Li, Weicheng Liu, Xuelian Bai, Dewen Liu, Jiewei Zhang
No abstract text is available yet for this article.
October 12, 2016: Science China. Life Sciences
Xue Li, Shaoya Zhang, Qingfeng Liang, Mei Wang, Ailian Hu, Xiuyuan Li, Benshan Yang, Mingxin Zhang, Ningli Wang, Xinxin Lu
No abstract text is available yet for this article.
October 12, 2016: Science China. Life Sciences
Lei Li, Yufei Yu, Zhaoyang Zhou, Jian-Min Zhou
Plants are exposed to numerous potential pathogenic microbes. To counter the threat, plants have evolved diverse patternrecognition receptors (PRRs), which are receptor kinases (RKs) and receptor proteins (RPs) specialized to detect conserved pathogen/microbe-associated molecular patterns (PAMPs/MAMPs). Although only a handful of RKs and RPs are known PRRs, they belong to the receptor-like kinase (RLK) and receptor-like protein (RLP) superfamilies that undergo lineagespecific expansion, suggesting that many of these RLKs and RLPs are potential PRRs...
October 12, 2016: Science China. Life Sciences
Ping Lu, Xiaolong Chen, Yun Feng, Qiao Zeng, Cizhong Jiang, Xianmin Zhu, Guoping Fan, Zhigang Xue
Fragile X syndrome (FXS) patients carry the expansion of over 200 CGG repeats at the promoter of fragile X mental retardation 1 (FMR1), leading to decreased or absent expression of its encoded fragile X mental retardation protein (FMRP). However, the global transcriptional alteration by FMRP deficiency has not been well characterized at single nucleotide resolution, i.e., RNA-seq. Here, we performed in-vitro neuronal differentiation of human induced pluripotent stem (iPS) cells that were derived from fibroblasts of a FXS patient (FXS-iPSC)...
October 11, 2016: Science China. Life Sciences
Lihua Qi, Yu Yu, Xiaochun Chi, Danyu Lu, Yao Song, Youyi Zhang, Hongquan Zhang
Kindlin-2, a member of the Kindlin family focal adhesion proteins, plays an important role in cardiac development. It is known that defects in the Z-disc proteins lead to hypertrophic cardiomyopathy (HCM) or dilated cardiomyopathy (DCM). Our previous investigation showed that Kindlin-2 is mainly localized at the Z-disc and depletion of Kindlin-2 disrupts the structure of the Z-Disc. Here, we reported that depletion of Kindlin-2 leads to the disordered myocardial fibers, fractured and vacuolar degeneration in myocardial fibers...
September 20, 2016: Science China. Life Sciences
Lidan Zhao, Linfang Huang, Xuan Zhang
Rapid progress has been made in exploring the connections between the skeletal system and the immune system over the past decade. Bone tissue forms developmental niches for hematopoietic stem cells, and activated immune cells are involved in bone metabolism regulation and are potent mediators of osteoporosis and bone erosion under pathological conditions. The interdisciplinary field of osteoimmunology has emerged to pool the knowledge of the interdependence of these two systems, including the shared ligands and receptors, their crosstalk and interaction, and common intracellular signaling pathways with bidirectional influence...
September 20, 2016: Science China. Life Sciences
Lu Zhang, Jiazi Liu, Dajun Wang, Hao Wang, Yonglin Wu, Zhi Lü
No abstract text is available yet for this article.
September 20, 2016: Science China. Life Sciences
Xuzhen Wang, Xiaoni Gan, Junbing Li, Yiyu Chen, Shunping He
Origin and diversification of the Tibetan polyploid cyprinids (schizothoracins) may help us to explore relationships between diversification of the cyprinids and the Tibetan Plateau uplift. Cyprininae phylogeny was analyzed using mitochondrial and nuclear DNA sequences to trace origins of polyploidy and diversifications of schizothoracins. Ancestral states reconstruction for ploidy levels indicated that the Cyprininae was diploid origin and the schizothoracin clades tetraploid origins. There were two diversification rate shifts along with diversification of the cyprinine fishes in response to the Tibetan uplift...
September 20, 2016: Science China. Life Sciences
Reqing He, Dashi Yu, Xinmei Li, Guifang Duan, Yunxuan Zhang, Dongying Tang, Xiaoying Zhao, Xuanming Liu
No abstract text is available yet for this article.
September 9, 2016: Science China. Life Sciences
Zuoqiong Zhou, Xiyang Peng, Jianbin Chen, Xiushan Wu, Yuequn Wang, Yunhan Hong
Magnetoreception is essential for magnetic orientation in animal migration. The molecular basis for magnetoreception has recently been elucidated in fruitfly as complexes between the magnetic receptor magnetoreceptor (MagR) and its ligand cryptochrome (Cry). MagR and Cry are present in the animal kingdom. However, it is unknown whether they perform a conserved role in diverse animals. Here we report the identification and expression of zebrafish MagR and Cry homologs towards understanding their roles in lower vertebrates...
September 6, 2016: Science China. Life Sciences
Guixiang Li, Guorui Xu, Congcong Shen, Yong Tang, Yuxin Zhang, Keming Ma
Above- and below-ground organisms are closely linked, but how elevational distribution pattern of soil microbes shifting across the treeline still remains unknown. Sampling of 140 plots with transect, we herein investigated soil bacterial distribution pattern from a temperate forest up to a subalpine meadow along an elevational gradient using Illumina sequencing. Our results revealed distinct elevational patterns of bacterial diversity above and below the treeline in responding to changes in soil conditions: a hollow elevational pattern in the forest (correlated with soil temperature, pH, and C:N ratio) and a significantly decreasing pattern in the meadow (correlated with soil pH, and available phosphorus)...
September 5, 2016: Science China. Life Sciences
Jian-Fei Pei, Yun-Fei Yan, Xiaoqiang Tang, Yang Zhang, Shen-Shen Cui, Zhu-Qin Zhang, Hou-Zao Chen, De-Pei Liu
Cardiac hypertrophy is the strongest predictor of the development of heart failure, and anti-hypertrophic treatment holds the key to improving the clinical syndrome and increasing the survival rates for heart failure. The paraoxonase (PON) gene cluster (PC) protects against atherosclerosis and coronary artery diseases. However, the role of PC in the heart is largely unknown. To evaluate the roles of PC in cardiac hypertrophy, transgenic mice carrying the intact human PON1, PON2, and PON3 genes and their flanking sequences were studied...
August 30, 2016: Science China. Life Sciences
Hu Lei, Yue Wang, Tian Zhang, Leilei Chang, Yelin Wu, Yuping Lai
Human S100A7 (psoriasin) is highly expressed in psoriasis and other inflammatory diseases; however, the function of S100A7 in wound repair remains largely unknown. Here we demonstrated that skin injury increased the expression of S100A7. Damaged cells from wounded skin induced the expression of S100A7 via the activation of Toll-like receptor 3 (TLR3) followed by the activation of p38 MAPK. S100A7, in turn, acted on keratinocytes to induce the expression of terminal differentiation marker gene loricrin through the activation of p38 MAPK and caspase-1...
August 17, 2016: Science China. Life Sciences
Xiangyu Zhao, Feng Gao, Xiaohui Zhang, Yu Wang, Lanping Xu, Kaiyan Liu, Xiaosu Zhao, Yingjun Chang, Han Wei, Huan Chen, Yuhong Chen, Zhengfan Jiang, Xiaojun Huang
The effects of haploidentical rhG-CSF-mobilized blood and marrow transplantation (HBMT) on hematological malignances are well established. Previous prospective single-center studies have demonstrated better survival after HBMT versus haploidentical rhG-CSF-mobilized peripheral blood stem cell transplantation (HPBSCT) for acute leukemia (AL) not in remission (NR) or in more than the second complete remission (>CR2). To test the hypothesis that HBMT is still superior to HPBSCT for patients with AL, multiple myeloma (MM), or non-Hodgkin lymphoma (NHL) in CR1/CR2 and for patients with chronic myeloid leukemia in the first and second chronic phase lacking a matched donor, we designed a propensity score method-based multicenter study...
August 17, 2016: Science China. Life Sciences
Yong Lu, Hua Lin, Kan Zhai, Xiaojuan Wang, Qiong Zhou, Huanzhong Shi
Th17 and Th9 cells have been demonstrated to possess immune regulatory functions in malignant pleural effusion (MPE). However, whether IL-17 can affect differentiation and function of Th9 cells in MPE remains unknown. The objective of the present study was to explore the impact of IL-17 on the in vivo differentiation of Th9 cells in relation to Th2 cells in a murine model of MPE, and to explore whether IL-17 inhibits MPE formation via IL-9‒dependent mechanism. It was found that Th9 and Th2 cells were decreased in MPE from IL-17 (-/-) mice as compared with wild type mice...
August 17, 2016: Science China. Life Sciences
Fang Wang, Lijuan Lian, Yunfeng Liu, Yuman Zhang, Rongxiang Fang, Qinglin Liu
No abstract text is available yet for this article.
August 17, 2016: Science China. Life Sciences
Xudong Wu
No abstract text is available yet for this article.
July 28, 2016: Science China. Life Sciences
Jiawei Guo, Weiwei Yu, Hui Su, Xiufeng Pang
Gastric cancer imposes a considerable health burden worldwide, and its mortality ranks as the second highest for all types of cancers. The limited knowledge of the molecular mechanisms underlying gastric cancer tumorigenesis hinders the development of therapeutic strategies. However, ongoing collaborative sequencing efforts facilitate molecular classification and unveil the genomic landscape of gastric cancer. Several new drivers and tumorigenic pathways in gastric cancer, including chromatin remodeling genes, RhoA-related pathways, TP53 dysregulation, activation of receptor tyrosine kinases, stem cell pathways and abnormal DNA methylation, have been revealed...
July 26, 2016: Science China. Life Sciences
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