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Acta Biochimica et Biophysica Sinica

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https://www.readbyqxmd.com/read/29346479/a-karyozoic-phenomenon-for-neospora-caninum
#1
Jingquan Dong, Jianhua Li, Xiaocen Wang, Ju Yang, Pengtao Gong, Xichen Zhang
No abstract text is available yet for this article.
January 16, 2018: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/29342224/elabela-apj-axis-contributes-to-embryonic-development-and-prevents-pre-eclampsia-in-pregnancy
#2
Qionglin Zhou, Kai Zhang, Yu Guo, Linxi Chen, Lanfang Li
No abstract text is available yet for this article.
January 12, 2018: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/29340620/delivery-of-tapasin-modified-ctl-epitope-peptide-via-cytoplasmic-transduction-peptide-induces-ctls-by-jak-stat-signaling-pathway-in-vivo
#3
Shanshan Wu, Xiaohua Chen, Yuyan Tang, Yi Zhang, Dan Li, Jie Chen, Jieling Wang, Zhenghao Tang, Guoqing Zang, Yongsheng Yu
Hepatitis B virus (HBV)-specific cytotoxic T lymphocytes (CTLs) play a vital role in viral control and clearance. Recent studies have elucidated that Tapasin, an endoplasmic reticulum chaperone, is a well-known molecule that appears to be essential in peptide-loading process. The Janus kinase/signal transducers and activators of transcription (JAK/STAT) pathway plays an important role in immune response regulation and cytokines secretion. We have previously verified that fusion protein CTP-HBcAg18-27-Tapasin could facilitate the maturation of bone marrow derived dendritic cells and enhance specific CTLs responses in vitro, which might be associated with the activation of JAK/STAT signaling pathway...
January 11, 2018: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/29329364/downregulation-of-drp1-a-fission-regulator-is-associated-with-human-lung-and-colon-cancers
#4
Young Yeon Kim, Seong-Hoon Yun, Jeanho Yun
Dynamin-related protein 1 (Drp1), a dynamin-related GTPase, is a key regulator of mitochondrial fission. Although recent studies have shown that Drp1 plays important roles in various important cellular processes, such as maintaining proper mitochondrial function, apoptosis and necrosis, the potential involvement of Drp1 in cancer development has not been fully addressed. To explore the role of Drp1 in cancer, we examined Drp1 levels in various human cancer tissues. Tissue array analysis showed that the level of Drp1 was decreased significantly in malignant colon and lung cancer tissues, whereas no change in Drp1 was observed in breast and prostate tumors...
January 10, 2018: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/29329362/clostridium-butyricum-regulates-visceral-hypersensitivity-of-irritable-bowel-syndrome-by-inhibiting-colonic-mucous-low-grade-inflammation-through-its-action-on-nlrp6
#5
Kejia Zhao, Leimin Yu, Xi Wang, Yibo He, Bin Lu
Visceral hypersensitivity induced by stress is quite common in irritable bowel syndrome (IBS) patients. Probiotics play an important role in reducing visceral hypersensitivity in IBS patients. However, the mechanism has not been clearly elucidated. In this study, we investigated the role of nod-like receptor pyrin domain-containing protein 6 (NLRP6) in Clostridium butyricum-regulated IBS induced by stress. Our results showed that NLRP6 was down-regulated in IBS group colon tissues. In addition, IL-18, IL-1β, myeloperoxidase (MPO), d-lactic acid (D-LA), and CD172a were up-regulated in the IBS group of colonic mucous...
January 10, 2018: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/29329360/tumor-suppressor-mir-128-3p-inhibits-metastasis-and-epithelial-mesenchymal-transition-by-targeting-zeb1-in-esophageal-squamous-cell-cancer
#6
Lili Zhao, Rui Li, Shanling Xu, Yi Li, Pei Zhao, Wei Dong, Zhenjun Liu, Qian Zhao, Bo Tan
MicroRNAs (miRNAs) are some short RNAs that regulate multiple biological functions at post-transcriptional levels, such as tumorigenic processes, inflammatory lesions and cell apoptosis. Zinc finger E-box binding homeobox factor 1 (ZEB1) is a crucial mediator of epithelial-mesenchymal transition (EMT). It induces malignant progression of various cancers including human esophageal squamous-cell carcinoma (ESCC). In this study, we found that miR-128-3p was downregulated in ESCC tissues and cells by using PCR...
January 10, 2018: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/29324976/ginsenoside-rg1-inhibits-apoptosis-by-increasing-autophagy-via-the-ampk-mtor-signaling-in-serum-deprivation-macrophages
#7
Ping Yang, Lu Ling, Wenjing Sun, Junquan Yang, Ling Zhang, Guoji Chang, Jiazhi Guo, Jun Sun, Lin Sun, Di Lu
Ginsenoside Rg1 (Rg1) has been widely used in a broad range of cardiovascular and cerebral-vascular diseases because of its unique therapeutic properties. However, the underlying mechanisms of Rg1 in the treatment of atherosclerosis have not been fully explored. This study sought to determine the precise molecular mechanisms on how Rg1 might be involved in regulating apoptosis in serum deprivation-induced Raw264.7 macrophages and primary bone marrow-derived macrophages. Results demonstrated that Rg1 treatment effectively suppressed apoptosis and the expression of phosphorylation level of mTOR induced by serum deprivation in Raw264...
January 9, 2018: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/29293886/tgf-%C3%AE-family-co-receptor-function-and-signaling
#8
Joachim Nickel, Peter Ten Dijke, Thomas D Mueller
Transforming growth factor-β (TGF-β) family members, which include TGF-βs, activins and bone morphogenetic proteins, are pleiotropic cytokines that elicit cell type-specific effects in a highly context-dependent manner in many different tissues. These secreted protein ligands signal via single-transmembrane Type I and Type II serine/threonine kinase receptors and intracellular SMAD transcription factors. Deregulation in signaling has been implicated in a broad array of diseases, and implicate the need for intricate fine tuning in cellular signaling responses...
December 27, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/29293883/down-regulation-of-cask-in-glucotoxicity-induced-insulin-dysfunction-in-pancreatic-%C3%AE-cells
#9
Yao Wang, Nana Hao, Haiyan Lin, Tianyuan Wang, Jinyang Xie, Yuexing Yuan
High-glucose level exerts deleterious effects on pancreatic β cells, but the mechanisms remain unclear. Calcium/calmodulin-dependent serine protein kinase (CASK) plays a vital role in neural development and release of neurotransmitters, and probably plays a role in the anchoring of insulin on pancreatic β cell membrane. Hypoxia-inducible factor 1α (HIF1α) is involved in β-cell dysfunction. The aim of this study was to provide some basic evidence that CASK could be involved in glucotoxicity-induced insulin secretion dysfunction mediated by HIF1α in INS-1E cells...
December 26, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/29309704/biochemical-characterization-of-a-fibrinolytic-enzyme-composed-of-multiple-fragments
#10
Yuhao Ren, Xia Pan, Qianqian Lyu, Weizhi Liu
No abstract text is available yet for this article.
December 22, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/29309501/ectopic-expression-of-bdcipk31-confers-enhanced-low-temperature-tolerance-in-transgenic-tobacco-plants
#11
Qingchen Luo, Qiuhui Wei, Ruibin Wang, Yang Zhang, Fan Zhang, Yuan He, Guangxiao Yang, Guangyuan He
Calcineurin B-like protein (CBL), the Ca2+ sensor, and its interacting protein kinases (CIPKs) play essential roles in plants' response to stress. However, few studies have focused on the functions of CIPKs in low-temperature response. In the present study, BdCIPK31, a cold-responsive CIPK in Brachypodium distachyon, was found to participate in low-temperature response. Ectopic expression of BdCIPK31 conferred cold tolerance in transgenic tobaccos. Further analyses indicated that expression of BdCIPK31 improved ROS detoxication and omsoprotectant biosynthesis in transgenic plants under low-temperature treatment, suggesting that the BdCIPK31 functions positively in plant adaption to the cold-induced oxidative and osmotic stresses...
December 22, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/29272322/flna-negatively-regulated-proliferation-and-metastasis-in-lung-adenocarcinoma-a549-cells-via-suppression-of-egfr
#12
Yuna Zhang, Tienian Zhu, Jingpu Liu, Jiankun Liu, Dongmei Gao, Tongyi Su, Ruijing Zhao
Filamin A (FLNa) is a ubiquitously expressed cytoplasmic protein, which composes of an N-terminal actin binding domain (ABD) followed by 24 Ig-like repeats. FLNa functions as a cytoskeletal protein that links transmembrane receptors, including integrins, to F-actin and serves as a signaling intermediate. Recent studies have identified FLNa as a scaffold protein that interacts with over 90 proteins and plays vital roles in cellular signaling transduction. Mutations or defects in human FLNa gene have been shown to cause numerous developmental defects...
December 20, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/29267844/nalmefene-attenuates-malignant-potential-in-colorectal-cancer-cell-via-inhibition-of-opioid-receptor
#13
Qichao Wu, Xiangyuan Chen, Jiaqiang Wang, Pengfei Sun, Meilin Weng, Wankun Chen, Zhirong Sun, Minmin Zhu, Changhong Miao
Morphine is postulated a risk factor in promoting tumor growth and metastasis during the preoperative period, and high glycolysis of tumor cells is proved to accelerate tumor progression. In this study, we investigated whether nalmefene, an opioid receptor inhibitor, could inhibit CT26 colon cancer cell growth through influencing cell glycolysis. CCK8 and transwell migration assays showed that nalmefene inhibited CT26 cells viability and migration in a concentration-dependent manner. Extracellular acidification rate and oxygen consumption rate showed that nalmefene inhibited glycolysis of CT26 cells...
December 18, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/29267839/a-special-issue-on-tgf-%C3%AE-signaling-regulation-crosstalk-and-biology
#14
Xiaohua Yan, Long Zhang
No abstract text is available yet for this article.
December 18, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/29228156/feedback-regulation-of-tgf-%C3%AE-signaling
#15
Xiaohua Yan, Xiangyang Xiong, Ye-Guang Chen
Transforming growth factor beta (TGF-β) is a multi-functional polypeptide that plays a critical role in regulating a broad range of cellular functions and physiological processes. Signaling is initiated when TGF-β ligands bind to two types of cell membrane receptors with intrinsic Ser/Thr kinase activity and transmitted by the intracellular Smad proteins, which act as transcription factors to regulate gene expression in the nucleus. Although it is relatively simple and straight-forward, this TGF-β/Smad pathway is regulated by various feedback loops at different levels, including the ligand, the receptor, Smads and transcription, and is thus fine-tuned in terms of signaling robustness, duration, specificity, and plasticity...
December 8, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/29206939/paradoxical-roles-of-tgf-%C3%AE-signaling-in-suppressing-and-promoting-squamous-cell-carcinoma
#16
Fanglong Wu, Kelsey J Weigel, Xiao-Jing Wang
Transforming growth factor β (TGF-β) signaling either promotes or inhibits tumor formation and/or progression of many cancer types including squamous cell carcinoma (SCC). Canonical TGF-β signaling is mediated by a number of downstream proteins including Smad family proteins. Alterations in either TGF-β or Smad signaling can impact cancer. For instance, defects in TGF-β type I and type II receptors (TGF-βRI and TGF-βRII) and in Smad2/3/4 could promote tumor development. Conversely, increased TGF-β1 and activated TGF-βRI and Smad3 have all been shown to have tumor-promoting effects in experimental systems of human and mouse SCCs...
December 1, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/29206913/molecular-regulation-of-nodal-signaling-during-mesendoderm-formation
#17
Shi Wei, Qiang Wang
One of the most important events during vertebrate embryogenesis is the formation or specification of the three germ layers, endoderm, mesoderm, and ectoderm. After a series of rapid cleavages, embryos form the mesendoderm and ectoderm during late blastulation and early gastrulation. The mesendoderm then further differentiates into the mesoderm and endoderm. Nodal, a member of the transforming growth factor β (TGF-β) superfamily, plays a pivotal role in mesendoderm formation by regulating the expression of a number of critical transcription factors, including Mix-like, GATA, Sox, and Fox...
December 1, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/29206897/optimization-of-poplar-mrna-purification-for-trancriptome-library-construction
#18
Lina Wang, Yucheng Wang, Dandan Zang, Zhibo Sun, Chuanping Yang
No abstract text is available yet for this article.
December 1, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/29190318/crosstalk-between-tgf-%C3%AE-signaling-and-epigenome
#19
Jianbo Bai, Qiaoran Xi
The transforming growth factor beta (TGF-β) family of ligands plays major roles in embryonic development, tissue homeostasis, adult immunity, and wound repair. Dysregulation of TGF-β signaling pathway leads to severe diseases. Its key components have been revealed over the past two decades. This family of cytokines acts by activating receptor activated SMAD (R-SMAD) transcription factors, which in turn modulate the expression of specific sets of target genes. Cells of a multicellular organism have the same genetic information, yet they show structural and functional differences owing to differential expression of their genes...
November 28, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/29190317/tgf-%C3%AE-signaling-pathway-in-early-mouse-development-and-embryonic-stem-cells
#20
Chang Liu, Guangdun Peng, Naihe Jing
TGF-β superfamily signaling pathways essentially contribute to the broad spectrum of early developmental events including embryonic patterning, cell fate determination and dynamic movements. In this review, we first introduced some key developmental processes that require TGF-β signaling to show the fundamental importance of these pathways. Then we discuss how their activities are regulated, and new findings about how the TGF-β superfamily ligands bind to the chromatin to regulate transcription during embryo development...
November 28, 2017: Acta Biochimica et Biophysica Sinica
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