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Cellular & Molecular Biology Letters

Lifan Zhuang, Jianhua Tian, Xinzhi Zhang, Hong Wang, Chenghui Huang
Background: Lnc-DC is a specific group of long non-coding (Lnc) RNAs in dendritic cells (DCs). Its function has been previously studied, and includes roles in dendritic cell differentiation and the progression of some diseases. In this study, we observed the critical role of Lnc-DC in regulating the differentiation, growth, and apoptosis of dendritic cells. Methods: We first isolated peripheral blood mononuclear cells to culture and induce into DCs, which were then co-cultured with hepatitis B virus (HBV)-secreting HepG2...
2018: Cellular & Molecular Biology Letters
Mohammad Reza Abbaszadegan, Anali Riahi, Mohammad Mahdi Forghanifard, Meysam Moghbeli
Background: Esophageal squamous cell carcinoma (ESCC) is the most common histological type of esophageal cancer, with a poor prognosis. Deregulation of WNT and NOTCH signaling pathways is important in ESCC progression, which can be due to either malfunction of their components or crosstalk with other pathways. Therefore, identification of new crosstalk between such pathways may be effective to introduce new strategies for targeted therapy of cancer. A correlation study was performed to assess the probable interaction between growth factor receptors and WNT/NOTCH pathways via the epidermal growth factor receptor (EGFR) and Musashi1 (MSI1), respectively...
2018: Cellular & Molecular Biology Letters
Zhi-Qiang Tian, Hong Jiang, Zhi-Bing Lu
Background: MicroRNAs play important roles in regulation of the cardiovascular system. The purpose of this study was to investigate microRNA-320 (miR-320) expression in myocardial ischemia-reperfusion (I/R) injury and the roles of miR-320 in cardiomyocyte apoptosis by targeting AKIP1 (A kinase interacting protein 1). Methods: The level of miR-320 was detected using quantitative real-time polymerase chain reaction (qRT-PCR), and cardiomyocyte apoptosis was detected via terminal dUTP nick end-labeling assay...
2018: Cellular & Molecular Biology Letters
Xin Ni, Xin-Zhi Li, Zhi-Ru Fan, Ai Wang, Hai-Chao Zhang, Liang Zhang, Li Li, Jun-Qiang Si, Ke-Tao Ma
Background: Imbalances in circulating T lymphocytes play critical roles in the pathogenesis of hypertension-mediated inflammation. Connexins (Cxs) in immune cells are involved in the maintenance of homeostasis of T lymphocytes. However, the association between Cxs in peripheral blood T lymphocytes and hypertension-mediated inflammation remains unknown. This study was designed to investigate the role of Cxs in T lymphocytes in hypertension-mediated inflammation in spontaneously hypertensive rats (SHRs)...
2018: Cellular & Molecular Biology Letters
Fengrui Wu, Qingqing Wu, Dengkun Li, Yuan Zhang, Rong Wang, Yong Liu, Wenyong Li
Background: The transcription factor Oct4 plays a pivotal role in the pre-implantation development of the mouse embryo. DNA methyltransferase 1 (Dnmt1) maintains the changes in DNA methylation during mammalian early embryonic development. Little is known of the role of Oct4 in DNA methylation in mice. In this study, Kunming white mice were used as an animal model to reveal any correlation between DNA methylation and Oct4 during mammalian embryonic development. Results: The expressions of Dnmt1 and Oct4 were initially studied using real-time PCR...
2018: Cellular & Molecular Biology Letters
Guangzhe Yu, Qian Liu, Xuening Dong, Kaihong Tang, Bohui Li, Chunmei Liu, Wenzheng Zhang, Yiduo Wang, Yingyu Jin
Background: Inflammation is an important pathogenic component of endotoxemia-induced acute kidney injury (AKI), finally resulting in renal failure. Diacerein is an interleukin-1β (IL-1β) inhibitor used for osteoarthritis treatment by exerting anti-inflammatory effects. This study aims to investigate the effects of diacerein on endotoxemia-induced AKI. Methods: Male C57BL/6 mice were intraperitoneally injected with lipopolysaccharide (LPS, 10 mg/kg) for 24 h prior to diacerein treatment (15 mg/kg/day) for another 48 h...
2018: Cellular & Molecular Biology Letters
Jian-Peng Hu, Rong Zhang, Min Tang, Yu-Lian Li, Lin-Ting Xun, Zhi-Zhou Shi, Ying An, Ting Li, Zheng-Ji Song
Background: We investigated the activity of loureirin B against liver fibrosis and the underlying molecular mechanisms. Methods: Hepatic stellate cells (HSCs) from Sprague-Dawley rats were treated with different concentrations of loureirin B. We used the MTT assay to determine HSC proliferation, flow cytometry to analyze apoptosis, and western blot to determine the expressions of Bax, Bcl-2, Wnt1 and β-catenin. Real-time PCR was used to determine the expressions of Wnt1 and miR-148-3p...
2018: Cellular & Molecular Biology Letters
Wei Wu, Li Nie, Li Zhang, Yan Li
Background: Oncogenic Notch1 is known to activate the NF-κB pathway in T cell acute lymphoblastic leukemia (T-ALL) and to up-regulate the transcription of Asb2α, a specificity factor for an E3 ubiquitin ligase complex that plays an important role in hematopoietic differentiation. Therefore, we hypothesize that Notch1 might regulate the NF-κB pathway through Asb2α. Methods: The study involved down-regulation of Notch1 in T-ALL cell lines (CCRF-CEM cells and MOLT-4 cells) through treatment with gamma-secretase inhibitor (GSI) as well as the modulation of Asb2 in CCRF-CEM cells and MOLT-4 cells through transduction with lentivirus carrying Asb2 or Asb2 -shRNA...
2018: Cellular & Molecular Biology Letters
Liqun Chen, Lingjuan Wu, Linyan Zhu, Yiyi Zhao
The nuclear receptor RXRα (retinoid X receptor-α) is a transcription factor that regulates the expression of multiple genes. Its non-genomic function is largely related to its structure, polymeric forms and modification. Previous research revealed that some non-genomic activity of RXRα occurs via formation of heterodimers with Nur77. RXRα-Nur77 heterodimers translocate from the nucleus to the mitochondria in response to certain apoptotic stimuli and this activity correlates with cell apoptosis. More recent studies revealed a significant role for truncated RXRα (tRXRα), which interacts with the p85α subunit of the PI3K/AKT signaling pathway, leading to enhanced activation of AKT and promoting cell growth in vitro and in animals...
2018: Cellular & Molecular Biology Letters
Ying Huang, Wuping Yang, Huihong Zeng, Chuan Hu, Yaqiong Zhang, Nanhua Ding, Guangqin Fan, Lijian Shao, Bohai Kuang
Upregulation of histone acetylation plays a critical role in the dysregulation of transcription. It alters the structure of chromatin, which leads to the onset of cancer. Histone deacetylase inhibitors may therefore be a promising way to limit cancer progression. In this study, we examined the effects of droxinostat on the growth of HT-29 colon cancer cells. Our results show that droxinostat effectively inhibited cell growth and colony-forming ability by inducing cellular apoptosis and ROS production in HT-29 cells...
2018: Cellular & Molecular Biology Letters
Shaoxian Liu, Junyi Yue, Wei Du, Jian Han, Weidong Zhang
Background: Osteosarcoma (OS) is a common malignant tumor that predominantly occurs in adolescents. Its most common metastasis is to the lungs. As shown in our earlier study, lysosome-associated membrane glycoprotein 3 (LAMP3) is highly upregulated in metastatic OS. However, its role in the regulation of OS cell viability and apoptosis remains unknown. Methods: We knocked down and overexpressed LAMP3 in OS cells and assessed the cell viability and apoptosis. Then, we investigated the expression of apoptosis-associated genes to identify the downstream gene(s) of LAMP3 ...
2018: Cellular & Molecular Biology Letters
Marta Pałka, Aleksandra Tomczak, Katarzyna Grabowska, Magdalena Machowska, Katarzyna Piekarowicz, Dorota Rzepecka, Ryszard Rzepecki
Lamin proteins are type V intermediate filament proteins (IFs) located inside the cell nucleus. They are evolutionarily conserved and have similar domain organization and properties to cytoplasmic IFs. Lamins provide a skeletal network for chromatin, the nuclear envelope, nuclear pore complexes and the entire nucleus. They are also responsible for proper connections between the karyoskeleton and structural elements in the cytoplasm: actin and the microtubule and cytoplasmic IF networks. Lamins affect transcription and splicing either directly or indirectly...
2018: Cellular & Molecular Biology Letters
Nikolaos G Nikitakis, Ioannis Gkouveris, Jaya Aseervatham, Kelvin Barahona, Kalu U E Ogbureke
Background: Recent findings indicate that dentin sialophosphoprotein (DSPP) and matrix metalloproteinase (MMP) 20 interact in oral squamous cell carcinoma (OSCC). The objective of this study was to determine the effects of DSPP/MMP20 gene silencing on oral cancer stem cell (OCSC) markers. Methods: The expression of well-established OCSC markers: ABCG2; ALDH1; CD133; CD44; BMI1; LGR4, and Podoplanin in DSPP/MMP20-silenced OSCC cell line, OSC2, and controls were assayed by western blot (WB), and flow cytometry techniques...
2018: Cellular & Molecular Biology Letters
Junxia Zhang, Baochun Yang, Xiaocheng Wen, Guoqiang Sun
Background: Bamei pigs are special germplasm resources in Qinghai. In the specific environment of the Qinghai plateau, local breeds, through long-term natural and artificial selection, have acquired a relatively stable population structure and genetic diversity. This study revealed Bamei pigs' genetic diversity at the molecular level and the degree of introgression of commercial breeds into Bamei pigs. Methods: The mitochondrial DNA D-loop region was amplified and sequenced using the ABI 3130 DNA sequencer...
2018: Cellular & Molecular Biology Letters
Jingjing Lu, Feng Xu, Yingna Zhang, Hong Lu, Jiewen Zhang
Background: Mishandling of intracellular chloride (Cl- ) concentration ([Cl- ]i ) in cerebrovascular smooth muscle cells is implicated in several pathological processes, including hyperplasia and remodeling. We investigated the effects of ClC-2-mediated Cl- efflux on the proliferation of human brain vascular smooth muscle cells (HBVSMCs) induced by angiotensin II (AngII). Methods: Cell proliferation and motility were determined using the CCK-8, bromodeoxyuridine staining, wound healing and invasion assays...
2018: Cellular & Molecular Biology Letters
Bingxia Shi, Wei Yan, Guolin Liu, Yanjun Guo
Background: It has been reported that the expression of activating transcription factor 3 (ATF3) is closely associated with both microRNA (miRNA) processing and the progress of many cancers. Our study aimed to explore the interaction between ATF3 and miR-488 in tongue squamous cell carcinoma (TSCC). Methods: Quantitative real-time PCR was performed to detect the levels of ATF3 and miR-488 in TSCC tissues and cell lines. Cell invasion and epithelial-mesenchymal transition (EMT) were assessed to determine the biological functions of miR-488 and ATF3 in TSCC cells...
2018: Cellular & Molecular Biology Letters
Hongxia Li, Yi Cui, Fuyan Li, Wenqi Shi, Wenjing Gao, Xiao Wang, Qingshi Zeng
Background: Radiotherapy is among the commonly applied treatment options for glioma, which is one of the most common types of primary brain tumor. To evaluate the effect of radiotherapy noninvasively, it is vital for oncologists to monitor the effects of X-ray irradiation on glioma cells. Preliminary research had showed that PKC-ι expression correlates with tumor cell apoptosis induced by X-ray irradiation. It is also believed that the lactate-to-creatine (Lac/Cr) ratio can be used as a biomarker to evaluate apoptosis in glioma cells after X-ray irradiation...
2018: Cellular & Molecular Biology Letters
Wenming Feng, Tao Xue, Sanxiong Huang, Qilin Shi, Chengwu Tang, Ge Cui, Guanghui Yang, Hui Gong, Huihui Guo
Background: Hypoxia plays a critical role in many cancers. Hypoxia inducible factor-1α (HIF-1α) is an important mediator of the hypoxia response. It regulates the expression of various chemokines involved in tumor growth, angiogenesis and metastasis but the associated pathway needs further investigation. Methods: The expression level of HIF-1α was determined in hepatocellular carcinoma (HCC) cells. The correlation of interleukin-8 (IL-8) and HIF-1α was assessed by knocking down HIF-1α...
2018: Cellular & Molecular Biology Letters
Aixia Sun, Hongwei Zhang, Feng Pang, Guifen Niu, Jianzhong Chen, Fei Chen, Jian Zhang
Background: Although significant advances have been made in understanding the mechanisms of macrophage response to Staphylococcus aureus infection, the molecular details are still elusive. Identification of the essential genes and biological processes of macrophages that are specifically changed at different durations of S. aureus exposure is of great clinical significance. Methods: We aimed to identify the significantly changed genes and biological processes of S...
2018: Cellular & Molecular Biology Letters
Yanfen Zhang, Wenjing Zhang, Caijun Zha, Yanhong Liu
Background: Patients with anti-β2GPI antibodies display significantly higher platelet activation/aggregation and vascular endothelial cell damage. The mechanism underlying the correlation between platelet activation, vascular endothelial cell dysfunctions and anti-β2GPI antibodies remains unknown. Methods: In this study, we derived miR-96 and -26a from platelets activated by the anti-β2GPI/β2GPI complex and explored their role in modulating human umbilical vein endothelial cell (HUVEC) migration and tube formation...
2018: Cellular & Molecular Biology Letters
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