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International Journal of Biochemistry & Cell Biology

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https://www.readbyqxmd.com/read/29777777/mir-128-3p-directly-targets-vegfc-vegfr3-to-modulate-the-proliferation-of-lymphatic-endothelial-cells-through-ca-2-signaling
#1
Jie Zhou, Zhiyou He, Le Guo, Jizhang Zeng, Pengfei Liang, Licheng Ren, Minghua Zhang, Pihong Zhang, Xiaoyuan Huang
Lymphangiogenesis has been regarded as a physiological response to pathologic stimuli. The abnormal proliferation of lymphatic endothelial cell (LECs) and lymphangiogenesis is involved in the development of lymphatic disorders. Reportedly, VEGFC/VEGFR3 plays a key role in lymphangiogenesis; moreover, VEGFC/VEGFR3 exerts their cellular effects through activation of Ca2+ signaling in several cell types. Herein, we demonstrated that VEGFC significantly up-regulated LEC proliferation through VEGFR3; moreover, VEGFC/VEGFR3 induced Ca2+ signaling activation...
May 16, 2018: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/29775742/ryanodine-receptor-ca-2-release-channel-post-translational-modification-central-player-in-cardiac-and-skeletal-muscle-disease
#2
Amanda Denniss, Angela F Dulhunty, Nicole A Beard
Calcium release from internal stores is a quintessential event in excitation-contraction coupling in cardiac and skeletal muscle. The ryanodine receptor Ca2+ release channel is embedded in the internal sarcoplasmic reticulum Ca2+ store, which releases Ca2+ into the cytoplasm, enabling contraction. Ryanodine receptors form the hub of a macromolecular complex extending from the extracellular space to the sarcoplasmic reticulum lumen. Ryanodine receptor activity is influenced by the integrated effects of associated co-proteins, ions, and post-translational phosphor and redox modifications...
May 15, 2018: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/29772357/modelling-the-dorsal-root-ganglia-using-human-pluripotent-stem-cells-a-platform-to-study-peripheral-neuropathies
#3
Serena Viventi, Mirella Dottori
Sensory neurons of the dorsal root ganglia (DRG) are the primary responders to stimuli inducing feelings of touch, pain, temperature, vibration, pressure and muscle tension. They consist of multiple subpopulations based on their morphology, molecular and functional properties. Our understanding of DRG sensory neurons has been predominantly driven by rodent studies and using transformed cell lines, whereas less is known about human sensory DRG neurons simply because of limited availability of human tissue. Although these previous studies have been fundamental for our understanding of the sensory system, it is imperative to profile human DRG subpopulations as it is becoming evident that human sensory neurons do not share the identical molecular and functional properties found in other species...
May 14, 2018: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/29768183/ndrg1-disruption-alleviates-cisplatin-sodium-glycididazole-induced-dna-damage-response-and-apoptosis-in-ercc1-defective-lung-cancer-cells
#4
Lang He, Kang Liu, Xiaoshan Wang, Hong Chen, Jin Zhou, Xun Wu, Tao Liu, Yongxue Yang, Xuemei Yang, Dandan Cui, Guiqin Song, Jianguo Lei, Jun Wang
BACKGROUND: Resistance to platinum-based chemotherapy becomes a major obstacle in lung cancer treatment. Compensatory activation of nucleotide excision repair (NER) pathway is the major mechanism accounting for cisplatin-resistance. We aimed at identifying additional regulators in NER-mediated chemoresistance in a hypoxic setting induced by sodium glycididazole (CMNa)-sensitized cisplatin chemotherapy of non-small cell lung cancer (NSCLC). METHODS: We performed an RNA-sequencing (RNA-Seq) analysis to identify the genes whose expression had been differentially regulated in NER-deficient cells that had been treated by cisplatin/CMNa...
May 13, 2018: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/29753783/nicotine-induced-autophagy-of-leydig-cells-rather-than-apoptosis-is-the-major-reason-of-the-decrease-of-serum-testosterone
#5
Xianglong Zhao, Wangjie Xu, Jiajie Wu, Dong Zhang, Abdelrahman Abou-Shakra, Ling Di, Zhaoxia Wang, Lianyun Wang, Fan Yang, Zhongdong Qiao
A new report has shown that nicotine exposure can decrease serum testosterone by apoptosis in Leydig cells; however, in our previous studies, we have almost never observed apoptosis there. The purpose of this study is to ensure whether apoptosis or autophagy in Leydig cells occurred. Our results confirmed again that the concentration of testosterone in the sera of nicotine-treated mice statistically decreased (P < 0.05). Furthermore, the data of single cell transcriptome indicated that the expression of autophagy-related genes was increased after nicotine exposure...
May 10, 2018: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/29738828/time-course-expression-profile-and-diagnostic-potential-of-a-mirna-panel-in-exosomes-and-total-serum-in-acute-liver-injury
#6
Tarek K Motawi, Mohamed R Mohamed, Nancy N Shahin, Mohamed A M Ali, May A Azzam
Circulating miRNAs have recently emerged as attractive candidates for biomarker discovery. However, they have a variant distribution in circulation, and the diagnostic significance of their compartmentalization is yet to be elucidated. This study explored the time-course expression profile and the diagnostic potential of miRNAs-122a-5p, 192-5p, 193a-3p and 194-5p in exosomal and total serum compartments in two rat models of acute liver injury (ALI)1 . Exosomes were isolated and characterized in terms of morphology, size and CD-63 surface marker expression...
May 5, 2018: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/29729889/the-inflammatory-state-of-adipose-tissue-is-not-affected-by-the-anti-inflammatory-response-of-the-a2a-adenosine-system-and-mir-221-pten
#7
J D Cortés-Garcia, M Briones-Espinoza, M Vega-Cárdenas, V M Ruíz-Rodríguez, A Mendez-Mancilla, Arturo E Gómez-Otero, J M Vargas Morales, M H García-Hernández, D P Portales-Pérez
Obesity is a chronic inflammatory state with cytokines, adipokines, and miRNAs. The A2a-adenosine system decreases activation and cytokine release in immune cells. MiR-221 is upregulated in carcinogenesis and inflammatory processes, where its targets PTEN and ETS-1, negatively regulates the Akt pathway and induces the release of pro-inflammatory cytokines, respectively. However, the roles of the A2a-adenosine system and miR-221 in adipose tissue are unknown. The aim of this work was to evaluate the A2a-adenosine and miRNA pathways as immune modulators in adipose tissue...
May 3, 2018: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/29727715/microrna-326-aggravates-acute-lung-injury-in-septic-shock-by-mediating-the-nf-%C3%AE%C2%BAb-signaling-pathway
#8
Chun-Ting Wu, Yan Huang, Zhen-Ye Pei, Xi Xin, Guang-Fa Zhu
Previously, several previous studies have demonstrated that the activation of the nuclear factor-kappa B (NF-κB) signaling pathway contributes to the development of lipopolysaccharide (LPS)-induced acute lung injury (ALI) as well as an inflammatory reaction, and its inhibition may provide future therapeutic values. Thereby, this currents study aims to explore the effects of miR-326 on inflammatory response and ALI in mice with septic shock via the NF-κB signaling pathway. The study included normal mice and LPS-induced mouse models of septic shock with ALI...
May 1, 2018: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/29727714/inhibitory-effect-of-microrna-154-targeting-whsc1-on-cell-proliferation-of-human-skin-squamous-cell-carcinoma-through-mediating-the-p53-signaling-pathway
#9
Hong-Quan Chen, Dong Gao
OBJECTIVE: Skin squamous cell carcinoma (SCC) is a common, morbid, and frequently lethal malignancy and ranks as the sixth most deadly cancer worldwide. Hence, this study aims to explore the effect of microRNA-154 (miR-154) targeting WHSC1 on proliferation and apoptosis of SCC cells via the P53 signaling pathway. METHODS: The targeting relationship between WHSC1 and miR-154 was validated using dual-luciferase reporter assay. Normal human epidermal keratinocytes (NHEK) were included, and SCC A431 and SCC-15 cell lines were cultured and transfected with miR-154 mimic, miR-154 inhibitor or siRNA-WHSC1...
May 1, 2018: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/29704625/tricyclic-antidepressants-inhibit-hippocampal-%C3%AE-7-and-%C3%AE-9%C3%AE-10-nicotinic-acetylcholine-receptors-by-different-mechanisms
#10
Hugo R Arias, Elizabeth Vázquez-Gómez, Andy Hernández-Abrego, Sofía Gallino, Dominik Feuerbach, Marcelo O Ortells, Ana Belén Elgoyhen, Jesús García-Colunga
The activity of tricyclic antidepressants (TCAs) at α7 and α9α10 nicotinic acetylcholine receptors (AChRs) as well as at hippocampal α7-containing (i.e., α7*) AChRs is determined by using Ca2+ influx and electrophysiological recordings. To determine the inhibitory mechanisms, additional functional tests and molecular docking experiments are performed. The results established that TCAs (a) inhibit Ca2+ influx in GH3-α7 cells with the following potency (IC50 in µM) rank: amitriptyline (2.7 ± 0.3) > doxepin (5...
April 25, 2018: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/29704624/positive-allosteric-modulators-of-%C3%AE-7-or-%C3%AE-2-nicotinic-acetylcholine-receptors-trigger-different-kinase-pathways-in-mitochondria
#11
Kateryna Uspenska, Olena Lykhmus, Hugo R Arias, Stephanie Pons, Uwe Maskos, Serghiy Komisarenko, Maryna Skok
Mitochondrial nicotinic acetylcholine receptors (nAChRs) regulate the early stage of mitochondria-driven apoptosis, including cytochrome c release. Mitochondrial nAChR signaling is mainly mediated by intra-mitochondrial kinases, in an ion-independent manner. To determine the relationship between specific nAChR subtypes and mitochondrial kinases, the effects of a set of nAChR subtype-selective positive allosteric modulators (PAMs) on cytochrome c release from mouse liver mitochondria stimulated by 0.9 µM Ca2+ , 0...
April 25, 2018: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/29684477/assessment-of-myoblast-circular-rna-dynamics-and-its-correlation-with-mirna-during-myogenic-differentiation
#12
Pengpeng Zhang, Haixia Xu, Rui Li, Wei Wu, Zhe Chao, Cencen Li, Wei Xia, Lei Wang, Jinzeng Yang, Yongjie Xu
Myoblast differentiation is a highly complex process that is regulated by proteins as well as by non-coding RNAs. Circular RNAs have been identified as an emerging new class of non-coding RNA in the modulation of skeletal muscle development, whereas their expression profiles and functional regulation in myoblast differentiation remain unknown. In the present study, we performed deep RNA-sequencing of C2C12 myoblasts during cell differentiation and uncovered 37,751 unique circular RNAs derived from 6,943 hosting genes...
April 20, 2018: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/29679766/aminoacyl-trna-synthetase-complex-interacting-multifunctional-protein-1-simultaneously-binds-glutamyl-prolyl-trna-synthetase-and-scaffold-protein-aminoacyl-trna-synthetase-complex-interacting-multifunctional-protein-3-of-the-multi-trna-synthetase-complex
#13
Margaret A Schwarz, Daniel D Lee, Seamus Bartlett
Higher eukaryotes have developed extensive compartmentalization of amino acid (aa) - tRNA coupling through the formation of a multi-synthetase complex (MSC) that is composed of eight aa-tRNA synthetases (ARS) and three scaffold proteins: aminoacyl tRNA synthetase complex interacting multifunctional proteins (AIMP1, 2 and 3). Lower eukaryotes have a much smaller complex while yeast MSC consists of only two ARS (MetRS and GluRS) and one ARS cofactor 1 protein, Arc1p (Simos et al., 1996), the homolog of the mammalian AIMP1...
April 18, 2018: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/29678785/integrin-%C3%AE-v%C3%AE-6-structure-function-and-role-in-health-and-disease
#14
REVIEW
Leeni Koivisto, Jiarui Bi, Lari Häkkinen, Hannu Larjava
Integrins are cell surface receptors that traditionally mediate cell-to-extracellular matrix and cell-to-cell adhesion. They can, however, also bind a large repertoire of other molecules. Integrin αvβ6 is exclusively expressed in epithelial cells where it can, for example, serve as a fibronectin receptor. However, its hallmark function is to activate transforming growth factor-β1 (TGF-β1) to modulate innate immune surveillance in lungs and skin and along the gastrointestinal tract, and to maintain epithelial stem cell quiescence...
April 17, 2018: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/29673878/down-regulation-of-mir-373-increases-the-radiosensitivity-of-lung-cancer-cells-by-targeting-timp2
#15
Yinghua Guo, Yingxiao Jiang, Maozhong Sang, Chunli Xu
BACKGROUND: Radiotherapy is a widely used effective treatment for lung cancer in clinic. MicroRNAs (miRNAs) have been proved to play an important role in radiation response. This study aimed to explore the regulatory role and mechanism of miR-373 in lung cancer cell radiosensitivity. METHODS: qRT-PCR was used to analyze the expression of miR-373 in lung cancer tissues and cell lines. MiR-373 expression was overexpressed or knocked down by transfection with miR-373 mimic or inhibitor...
April 16, 2018: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/29660399/cacybp-sip-a-hsp90-binding-chaperone-in-cellular-stress-response
#16
Agnieszka Góral, Katarzyna Bartkowska, Rouzanna L Djavadian, Anna Filipek
CacyBP/SIP interacts with Hsp90 and is able to protect proteins from denaturation and/or aggregation induced by elevated temperature. In this work we studied the influence of different stress factors on CacyBP/SIP level in HEp-2 cells. We have found that H2 O2 and radicicol treatment resulted in a significant increase (up to 40-50%) in the CacyBP/SIP level. We have also found that HEp-2 cells overexpressing CacyBP/SIP were more resistant to stress-induced death. Further studies have revealed that the Hsf1 transcription factor binds to the CacyBP/SIP gene promoter and up-regulates CacyBP/SIP expression under stress conditions...
April 13, 2018: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/29655920/suppressing-ku70-ku80-expression-elevates-homology-directed-repair-efficiency-in-primary-fibroblasts
#17
Guoling Li, Dewu Liu, Xianwei Zhang, Rong Quan, Cuili Zhong, Jianxin Mo, Yaoqiang Huang, Haoqiang Wang, Xiaofang Ruan, Zheng Xu, Enqin Zheng, Ting Gu, Linjun Hong, Zicong Li, Zhenfang Wu, Huaqiang Yang
The main DNA repair pathways, nonhomologous end joining (NHEJ) and homology-directed repair (HDR), are complementary to each other; hence, interruptions of the NHEJ pathway can favor HDR. Improving HDR efficiency in animal primary fibroblasts can facilitate the generation of gene knock-in animals with agricultural and biomedical values by somatic cell nuclear transfer. In this study, we used siRNA to suppress the expression of Ku70 and Ku80, which are the key factors in NHEJ pathway, to investigate the effect of Ku silencing on the HDR efficiency in pig fetal fibroblasts...
April 12, 2018: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/29655919/endocannabinoid-system-in-systemic-lupus-erythematosus-first-evidence-for-a-deranged-2-arachidonoylglycerol-metabolism
#18
Luca Navarini, Tiziana Bisogno, Pamela Mozetic, Fabiana Piscitelli, Domenico Paolo Emanuele Margiotta, Fabio Basta, Antonella Afeltra, Mauro Maccarrone
The endocannabinoid (eCB) system plays a key role in many physiological and pathological conditions and its dysregulation has been described in several rheumatological and autoimmune diseases. Yet, its possible alteration in systemic lupus erythematosus (SLE) has never been investigated. Here, we aimed filling this gap in plasma and peripheral blood mononuclear cells (PBMCs) of patients with SLE and age- and sex- matched healthy subjects (HS). Liquid chromatography-mass spectrometry quantitation of eCB levels highlighted that plasma levels of 2-arachidonoylglycerol (2-AG) were significantly increased in SLE patients compared to HS (p = 0...
April 12, 2018: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/29654900/urinary-extracellular-vesicle-biomarkers-in-urological-cancers-from-discovery-towards-clinical-implementation
#19
REVIEW
Bert Dhondt, Jan Van Deun, Silke Vermaerke, Ario de Marco, Nicolaas Lumen, Olivier De Wever, An Hendrix
Urine contains cellular elements, biochemicals, and proteins derived from glomerular filtration of plasma, renal tubule excretion, and urogenital tract secretions that reflect an individual's metabolic and pathophysiologic state. Despite intensive research into the discovery of urinary biomarkers to facilitate early diagnosis, accurate prognosis and prediction of therapy response in urological cancers, none of these markers has reached widespread use. Their implementation into daily clinical practice is hampered by a substantial degree of heterogeneity in performance characteristics and uncertainty about reliability, clinical utility and cost-effectiveness, in addition to several technical limitations...
April 11, 2018: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/29649565/polyamines-protect-nucleic-acids-against-depurination
#20
Yusuke Terui, Taketo Yoshida, Akihiko Sakamoto, Daisuke Saito, Tairo Oshima, Masahito Kawazoe, Shigeyuki Yokoyama, Kazuei Igarashi, Keiko Kashiwagi
Depurination is accelerated by heat and reactive oxygen species under physiological conditions. We previously reported that polyamines are involved in mitigation of heat shock and oxidative stresses through stimulation of the synthesis of heat shock and antioxidant proteins. This time, we investigated whether polyamines are directly involved in protecting nucleic acids from thermal depurination induced by high temperature. The suppressing efficiencies of depurination of DNA by spermine, caldopentamine and caldohexamine in the presence of 1 mM Mg2+ , were approximately 50%, 60% and 80%, respectively...
April 9, 2018: International Journal of Biochemistry & Cell Biology
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