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Cell & Bioscience

Li Niu, Cuifang Ye, Yun Sun, Ting Peng, Shiming Yang, Weixi Wang, He Li
Background: Iron accumulation in basal ganglia accompanies neuronal loss in Huntington's disease (HD) patients and mouse disease models. Disruption of HD brain iron homeostasis occurs before the onset of clinical signs. Therefore, investigating the mechanism of iron accumulation is essential to understanding its role in disease pathogenesis. Methods: N171-82Q HD transgenic mice brain iron was detected by using Diaminobenzidine-enhanced Perls' stain. Iron homeostatic proteins including iron response protein 1 (IRP1), transferrin (Tf), ferritin and transferrin receptor (TfR) were determined by using western blotting and immunohistochemistry, and their relative expression levels of RNA were measured by RT-PCR in both N171-82Q HD transgenic mice and HEK293 cells expressing N-terminal of huntingtin...
2018: Cell & Bioscience
Qisheng Zuo, Chen Zhang, Kai Jin, Jin Jing, Changhua Sun, Mahmoud F Ahmed, Jiuzhou Song, Yani Zhang, Guohong Chen, Bichun Li
Background: Notch signaling is mainly regulated by Notch1 during development of chicken germ stem cells; however, the molecular mechanisms that contribute to generation of these germ stem cells have not been thoroughly investigated. Results: In our studies, Overexpression of the Notch1 NICD promoted development of the reproductive ridge, but inhibited the formation of seminiferous tubules. The formation efficiency of PGCs in the reproductive ridge following overexpression of NICD (7...
2018: Cell & Bioscience
Suaka Kagbo-Kue, Taiwo Ajose, Nicolas Bakinde
No abstract text is available yet for this article.
2018: Cell & Bioscience
Xuehong Xu, Steven P Balk, William B Isaacs, Jianjie Ma
No abstract text is available yet for this article.
2018: Cell & Bioscience
Zhoutao He, Xiaoning Sun, Zhichao Ma, Jiao Fu, Baili Huang, Fujin Liu, Yi Chen, Taozhi Deng, Xiangyang Han, Deming Sun, Cheng Lan
Background: This study investigated the role of HSP70 in modulating intestinal γδ T cells' Th17 response in Trichinella spiralis -induced PI-IBS mice model. Methods: The intestinal HSP70's expression and mRNA level were measured by Western blot and RT-PCR. The intestinal γδ T cell's morphological changes were analyzed using immunofluorescence staining and confocal laser scanning microscope. The pro-inflammatory cytokines' level was detected by ELISA. The isolated and purified γδ T cells were pre-incubated with HSP70 and their functions including proliferation, apoptosis, activation and production of IL-17 were also detected...
2018: Cell & Bioscience
Jian Zhang, Joseph R Lakowicz
Background: Near-field fluorescence (NFF) effects were employed to develop a novel near-infrared (NIR) luminescent nanoparticle (LNP) with superior brightness. The LNP is used as imaging contrast agent for cellular and small animal imaging and furthermore suggested to use for detecting voltage-sensitive calcium in living cells and animals with high sensitivity. Results: NIR Indocyanine green (ICG) dye was conjugated with human serum albumin (HSA) followed by covalently binding to gold nanorod (AuNR)...
2018: Cell & Bioscience
Zhao-Shan Liu, Zi-Yu Zhang, Hong Cai, Ming Zhao, Jie Mao, Jiang Dai, Tian Xia, Xue-Min Zhang, Tao Li
Background: As an important danger signal, the presence of DNA in cytoplasm triggers potent immune responses. Cyclic GMP-AMP synthase (cGAS) is a recently characterized key sensor for cytoplasmic DNA. The engagement of cGAS with DNA leads to the synthesis of a second messenger, cyclic GMP-AMP (cGAMP), which binds and activates the downstream adaptor protein STING to promote type I interferon production. Although cGAS has been shown to play a pivotal role in innate immunity, the exact regulation of cGAS activation is not fully understood...
2018: Cell & Bioscience
Fei Tang, Pan Zheng
Antibody blockade of the PD-1/PD-L1 pathway has elicited durable antitumor responses in the therapy of a broad spectrum of cancers. PD-L1 is constitutively expressed in certain tumors and host immune cells, and its expression can be induced or maintained by many factors. The expression of PD-L1 on tumor tissues has been reported to be positively correlated with the efficacy of anti-PD-1/PD-L1 therapy in patients. However, multiple clinical trials indicate that patients with PD-L1-negative tumors also respond to this blockade therapy, which suggests the potential contribution of PD-L1 from host immune cells...
2018: Cell & Bioscience
Chengcheng Li, Yi Luo, Lijian Shao, Aimin Meng, Daohong Zhou
Objective: Previous studies have shown that inhibition of inducible NO synthase (NOS2 or iNOS) with an inhibitor can selectively protect several normal tissues against radiation during radiotherapy. However, the role of NOS2 in ionizing radiation (IR)-induced bone marrow (BM) suppression is unknown and thus was investigated in the present study using NOS2- /- and wild-type mice 14 days after they were exposed to a sublethal dose of total body irradiation (TBI). Methods: The effects of different doses of IR (1, 2 and 4 Gy) on the apoptosis and colony-forming ability of bone marrow cells from wild-type (WT) and NOS2- /- mice were investigated in vitro...
2018: Cell & Bioscience
Souqi Liao, Wenyan Dong, Hui Zhao, Ruijin Huang, Xufeng Qi, Dongqing Cai
Two studies have recently focused on adult heart regeneration in Xenopus . While we reported on cardiac myogenic regeneration in Xenopus tropicalis after injury, Marshall and colleagues found no regeneration in an injured heart in Xenopus laevis. Here, we would like to join the discussion initiated by Marshall et al. who debated the methods and species differences in both studies. We agree with their view that the species difference in cardiac regenerative capacity could lead to different results in both of these studies...
2018: Cell & Bioscience
Lindsey Marshall, Fabrice Girardot, Barbara A Demeneix, Laurent Coen
We recently used an endoscopy-based resection method to explore the consequences of cardiac injury in adult Xenopus laevis , obtaining the result that the adult Xenopus heart is unable to regenerate. At 11 months post-amputation, cellular and biological marks of scarring persisted. We thus concluded that, contrary to urodeles and teleosts, adult anurans share a cardiac injury outcome similar to adult mammals. However, in their work published in this journal on the 13 December 2017, Liao et al. showed that the adult Xenopus tropicalis heart is capable of efficient, almost scar free regeneration, a result at odds with our previous observation...
2018: Cell & Bioscience
Fei Tang, Xuexiang Du, Mingyue Liu, Pan Zheng, Yang Liu
Antibodies to human CTLA-4 have been shown to induce long-lasting protection against melanoma. It is assumed that these antibodies cause tumor rejection by blocking negative signaling from the B7-CTLA-4 interactions to enhance priming of naïve T cells in the lymphoid organs. Recently, we reported that anti-CTLA-4 antibody Ipilimumab effectively induces tumor rejection in vivo although it blocks neither B7 transendocytosis by CTLA-4 nor CTLA-4 binding to immobilized or cell-associated B7. Using genetic model in which the anti-CTLA-4 antibodies are unable to engage more than 50% of CTLA-4, we demonstrated that saturating binding of CTLA-4 is not necessary for tumor rejection...
2018: Cell & Bioscience
Xinyu Feng, Jiatong Wu, Shuisen Zhou, Jingwen Wang, Wei Hu
Background: microRNAs (miRNAs) are one kind of small non-coding RNAs widely distributed in insects. Many studies have shown that miRNAs play critical roles in development, differentiation, apoptosis, and innate immunity. However, there are a few reports describing miRNAs in Anopheles sinensis , the most common, and one of the dominant malaria mosquito in China. Here, we investigated the global miRNA expression profile across four different developmental stages including embryo, larval, pupal, and adult stages using Illumina Hiseq 2500 sequencing...
2018: Cell & Bioscience
Sheng Wang, Kristyn Gumpper, Tao Tan, Xianzhang Luo, Hui Guo, Changsheng Ming, Hanying Jiang, Jiangguo Fang, Guang Du, Hua Zhu, Jianjie Ma, Zhishui Chen, Nianqiao Gong
Organ preservation solutions are designed to minimize organ damage during transplantation. A novel preservation solution, WMO-II, was developed to have a low viscosity and to improve microvasculature perfusion for kidneys. In an autologous canine transplantation model, kidney function and recovery were evaluated after organs were flushed and cold-stored with WMO-II or HTK solution, a perfusate currently approved for clinical use. The average number of red blood cells remaining in a single glomerulus after flushing with WMO-II was significantly reduced when compared with HTK solution...
2018: Cell & Bioscience
MengMeng Xu, Andreas Seas, Musa Kiyani, Keven S Y Ji, Hannah N Bell
Background: Although the study of calcium (Ca2+ ) is classically associated with excitable cells such as myocytes or neurons, the ubiquity of this essential element in all cellular processes has led to interest in other cell types. The importance of Ca2+ to apoptosis, cell signaling, and immune activation is of special import in cancer. Main: Here we review the current understanding of Ca2+ in each of these processes vital to the initiation, spread, and drug resistance of malignancies...
2018: Cell & Bioscience
Juliann G Kiang, Marsha N Anderson, Joan T Smith
Background: Radiation injury combined wound (CI) enhances acute radiation syndrome and subsequently mortality as compared to radiation injury alone (RI). We previously reported that ghrelin (a 28-amino-acid-peptide secreted from the stomach) treatment significantly increased a 30-day survival, mitigated hematopoietic death, circulating white blood cell (WBC) depletion and splenocytopenia and accelerated skin-wound healing on day 30 after CI. Herein, we aimed to study the ghrelin efficacy at early time points after CI...
2018: Cell & Bioscience
Hongyu Guan, Yan Guo, Liehua Liu, Runyi Ye, Weiwei Liang, Hai Li, Haipeng Xiao, Yanbing Li
Background: Innate immunity activator (INAVA) has been shown to be elevated in lung adenocarcinoma. However, its expression pattern and function in papillary thyroid cancer (PTC) are unknown. This study aimed to identify the clinical, biological, and mechanistic impacts of INAVA on PTC. Methods: Using The Cancer Genome Atlas dataset, real time PCR, and immunohistochemistry, the expression of INAVA in PTC was analyzed. Gain- and loss-of-function assays were performed to investigate the role of INAVA in PTC cell invasion, migration, and metastasis...
2018: Cell & Bioscience
Xin Zhou, Zhongguang Li, Zefan Wang, Eda Chen, Juan Wang, Frederic Chen, Odell Jones, Tao Tan, Shawn Chen, Hiroshi Takeshima, Joseph Bryant, Jianjie Ma, Xuehong Xu
Macrophages are traditionally viewed as a key component of the immunity defense system. Recent studies have identified resident macrophages in multiple organs including the heart, in which the cells perform their crucial role on tissue repair after myocardial infarction (MI). The cardiac-specific macrophages interdigitate with cardiomyocytes particularly at the atrioventricular node region. The integrative communication between macrophage and cardiomyocytes can modulate the contractile function of the heart...
2018: Cell & Bioscience
Huijuan Xiao, Yihe Liu, Pan Liang, Bo Wang, Hongna Tan, Yonggao Zhang, Xianzheng Gao, Jianbo Gao
Background: The acquisition of drug resistance has been considered as a main obstacle for cancer chemotherapy. Tumor protein 53 target gene 1 (TP53TG1), a p53-induced lncRNA, plays a vital role in the progression of human cancers. However, little is known about the detailed function and molecular mechanism of TP53TG1 in cisplatin resistance of NSCLC. Methods: qRT-PCR analysis was used to detect the expression of TP53TG1, miR-18a and PTEN mRNA in NSCLC tissues and cells...
2018: Cell & Bioscience
Susanne Staehlke, Henrike Rebl, Birgit Finke, Petra Mueller, Martina Gruening, J Barbara Nebe
Background: Biomaterial modifications-chemical and topographical-are of particular importance for the integration of materials in biosystems. Cells are known to sense these biomaterial characteristics, but it has remained unclear which physiological processes bio modifications trigger. Hence, the question arises of whether the dynamic of intracellular calcium ions is important for the characterization of the cell-material interaction. In our prior research we could demonstrate that a defined geometrical surface topography affects the cell physiology; this was finally detectable in a reduced intracellular calcium mobilization after the addition of adenosine triphosphate (ATP)...
2018: Cell & Bioscience
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