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Molecular and Cellular Biochemistry

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https://www.readbyqxmd.com/read/28526936/fingerprint-of-long-non-coding-rna-regulated-by-cyclic-mechanical-stretch-in-human-aortic-smooth-muscle-cells-implications-for-hypertension
#1
Laura-Eve Mantella, Krishna K Singh, Paul Sandhu, Crystal Kantores, Azza Ramadan, Nadiya Khyzha, Adrian Quan, Mohammed Al-Omran, Jason E Fish, Robert P Jankov, Subodh Verma
Emerging evidence suggests that long non-coding RNAs (lncRNAs) represent a cellular hub coordinating various cellular processes that are critical in health and disease. Mechanical stress triggers changes in vascular smooth muscle cells (VSMCs) that in turn contribute to pathophysiological changes within the vasculature. We sought to evaluate the role that lncRNAs play in mechanical stretch-induced alterations of human aortic smooth muscle cells (HASMCs). RNA (lncRNA and mRNA) samples isolated from HASMCs that had been subjected to 10 or 20% elongation (1 Hz) for 24 h were profiled with the Arraystar Human LncRNA Microarray V3...
May 19, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28526935/diabetes-induced-abnormalities-of-mitochondrial-function-in-rat-brain-cortex-the-effect-of-n-3-fatty-acid-diet
#2
Maria Chomova, Maria Balazova, Jana Muchova
Diabetic encephalopathy, a proven complication of diabetes is associated with gradually developing end-organ damage in the CNS increasing the risk of stroke, cognitive dysfunction or Alzheimer's disease. This study investigated the response of rat cortical mitochondria to streptozotocin-induced diabetes and the potential for fish oil emulsion (FOE) to modulate mitochondrial function. Diabetes-induced deregulation of the respiratory chain function as a result of diminished complex I activity (CI) and cytochrome c oxidase hyperactivity was associated with attenuation of antioxidant defense of isolated cortical mitochondria, monitored by SOD activity, the thiol content, the dityrosine and protein-lipid peroxidation adduct formation...
May 19, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28526934/exogenous-proline-stimulates-type-i-collagen-and-hif-1%C3%AE-expression-and-the-process-is-attenuated-by-glutamine-in-human-skin-fibroblasts
#3
Lukasz Szoka, Ewa Karna, Kornelia Hlebowicz-Sarat, Jacek Karaszewski, Jerzy A Palka
Abundance of proline (Pro) in collagen molecule led us to investigate whether Pro supply affects collagen biosynthesis in human skin fibroblasts. Treatment of the cells with milimolar concentrations (5 and 10 mM) of Pro for 24 and 48 h contributed to increase in α1 subunit of collagen type I (COL1A1) expression in both cells and culture medium. However, the effect was more pronounced in glutamine-free medium. In such condition, Pro induced collagen expression by about twofold in the cells, while in the medium only by about 30% during 24 h incubation, compared to control...
May 19, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28526933/protection-of-tubular-epithelial-cells-during-renal-injury-via-post-transcriptional-control-of-bmp7
#4
Jiping Sun, Aiping Yin, Fei Zhao, Wenjing Zhang, Jia Lv, Jing Lv
Severe injury of renal tubular epithelial cells may cause acute renal failure, the progression of which results in renal fibrosis, and obstructive nephropathy. Transforming growth factor β 1 and bone morphogenic protein 7 (BMP7) play contradicting roles in and coordinate the process of epithelial-to-mesenchymal transition of renal tubular epithelial cells, but the molecular regulation of BMP7 remains ill-defined. Here, we addressed this question. We found that after induction of unilateral ureteral obstruction (UUO) in mice, the increases in BMP7 mRNA were much more pronounced than BMP7 protein in kidney, suggesting the presence of post-transcriptional control of BMP7...
May 19, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28523512/reduced-adipogenesis-after-lung-tumor-exosomes-priming-in-human-mesenchymal-stem-cells-via-tgf%C3%AE-signaling-pathway
#5
Shihua Wang, Xiaoxia Li, Meiqian Xu, Jing Wang, Robert Chunhua Zhao
A key feature of cancer cachexia is the loss of adipose tissue, mainly due to increased lipolysis and an impairment of adipogenesis. Recent findings have shown that cancer exosomes promoted lipolysis in adipose tissue. However, effects of cancer exosomes on adipogenesis were not reported. In this study, we found that lung cancer exosomes could be internalized by human adipose tissue-derived mesenchymal stem cells (hAD-MSCs) and significantly inhibited hAD-MSC adipogenesis as demonstrated by Oil Red O staining and decreased expression of adipogenic-specific genes...
May 18, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28501934/cx-4945-the-protein-kinase-ck2-inhibitor-and-anti-cancer-drug-shows-anti-fungal-activity
#6
Maciej Masłyk, Monika Janeczko, Aleksandra Martyna, Konrad Kubiński
CX-4945 is a selective inhibitor of protein kinase CK2 exhibiting clinical significance. Its antitumor properties arise from the abrogation of CK2-mediated pro-survival cellular pathways. The presented data reveal the influence of CX-4945 on the growth of yeast cells showing variable potency against Saccharomyces cerevisiae deletion strains with different contents of CK2 subunits. The catalytic subunit CK2α appears to sensitize yeast to the CX-4945 action. Moreover, the compound suppresses hyphal growth and cell adhesion of Candida albicans, thereby abolishing some hallmarks of invasiveness of the pathogen...
May 13, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28497372/scara5-plays-a-critical-role-in-the-progression-and-metastasis-of-breast-cancer-by-inactivating-the-erk1-2-stat3-and-akt-signaling-pathways
#7
Kai You, Fei Su, Lihua Liu, Xiaohong Lv, Jianguo Zhang, Yafang Zhang, Baoquan Liu
Scavenger receptor class A member 5 (SCARA5) is a candidate anti-oncogene in several malignancies. However, whether SCARA5 is a suppressor gene in breast cancer and its role in breast cancer cell growth and metastasis remain to be determined. Here, we investigated the biological functions of SCARA5 in the progression and metastasis of breast cancer and explored the underlying mechanisms. A total of 65 breast cancer patients and three cell lines (ZR-75-30, MCF-7, and MDA-MB-231) were analyzed in the study. RT-qPCR, western blotting, and immunohistochemistry were used to detect mRNA and protein expression, and lymphatic vessel density (LVD) and microvessel density (MVD)...
May 11, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28497371/sestrin-2-attenuates-neonatal-rat-cardiomyocyte-hypertrophy-induced-by-phenylephrine-via-inhibiting-erk1-2
#8
Bin Dong, Ruicong Xue, Yu Sun, Yugang Dong, Chen Liu
Cardiac hypertrophy is an adaptive response triggered by many physiological and pathological conditions and will lead to heart failure eventually. Sestrin 2, which is a stress-responsive protein, was reported to protect heart from ischemia reperfusion injury. However, the role of Sestrin 2 in cardiac hypertrophy remains unknown. In our present study, we aimed to explore the effects of Sestrin 2 on cardiomyocyte hypertrophy. We found that knockdown of Sestrin 2 protein aggravated cardiomyocyte hypertrophy induced by phenylephrine (PE), featured by increased hypertrophic marker ANP and cell surface area...
May 11, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28497370/igf2bp1-a-novel-binding-protein-of-p38-mapk
#9
Jacob Rini, Moorthy Anbalagan
Signal transduction pathways control various biological processes in cells leading to distinct cellular functions. Protein-protein interactions and post-translational modifications are the physiological events that occur in signaling pathway. p38 MAPK are known to be involved in regulating wide range of cellular processes by interacting and activating relevant signaling molecules by means of phosphorylation. Deregulation of p38 MAPK is associated with various pathological conditions. In order to get an insight into the role played by p38 MAPK in cellular signaling, studies were carried out to identify proteins that interact with p38 MAPK...
May 11, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28497369/co-enzyme-q10-and-acetyl-salicylic-acid-enhance-hsp70-expression-in-primary-chicken-myocardial-cells-to-protect-the-cells-during-heat-stress
#10
Jiao Xu, Shu Tang, Bin Yin, Jiarui Sun, Erbao Song, Endong Bao
We investigated the effects of co-enzyme Q10 (Q10) and acetyl salicylic acid (ASA) on expression of Hsp70 in the protection of primary chicken myocardial cells during heat stress. Western blot analysis showed that Q10 and ASA accelerated the induction of Hsp70 when chicken myocardial cells were exposed to hyperthermia. In the absence of heat stress, however, neither Q10 nor ASA are able to upregulate Hsp70 expression. Analysis of enzymes that respond to cellular damage and pathological examination revealed that ectopic expression of ASA and Q10 alleviate cellular damage during heat stress...
May 11, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28497368/honeydew-honey-biological-effects-on-skin-cells
#11
Simona Martinotti, Giorgio Calabrese, Elia Ranzato
Honey is a natural product well known by humankind and now reconsidered for its use as topical agent for wound and burn treatments. Floral honey is made by honeybees from the nectar of blossoms, while honeydew honey is prepared from secretions of plants or excretions of plant-sucking insects. Chemical composition is different between blossom and honeydew honeys and there is very few information about the biological properties of honeydew honey. So, this study was specifically designed to explore the potential wound healing effects of the honeydew honey...
May 11, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28497367/enpp1-121q-functional-variant-enhances-susceptibility-to-coronary-artery-disease-in-south-indian-patients-with-type-2-diabetes-mellitus
#12
S Sumi, Surya Ramachandran, V RamanKutty, Maulin M Patel, T N Anand, Ajit S Mullasari, C C Kartha
Insulin resistance is associated with endothelial dysfunction and ensuing cardiovascular diseases in type 2 diabetes mellitus (T2DM) patients. ENPP1 is a key modulator of insulin signaling and its polymorphism, K121Q, increases the potency to competitively inhibit insulin receptor binding. We investigated the association of ENPP1 121Q variant with coronary artery disease (CAD) in patients with and without T2DM in South Indian population. Our study was conducted in 913 subjects: 198 patients with CAD, 284 patients in whom T2DM and CAD co-exists, 160 patients with T2DM and no CAD history, and 271 healthy volunteers...
May 11, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28484937/effects-of-ganoderma-lucidum-shell-broken-spore-on-oxidative-stress-of-the-rabbit-urinary-bladder-using-an-in-vivo-model-of-ischemia-reperfusion
#13
Robert M Levin, Li Xia, Wu Wei, Catherine Schuler, Robert E Leggett, Alpha D-Y Lin
Oxidative stress plays an important role in specific disease pathophysiology and the aging process. In the history of human kind, many herbs were utilized for disease prevention and anti-aging treatment. However, there are few direct evidences provided by modern laboratory technology. The current study was designed to evaluate Ganoderma Lucidum's (GL) ability to reduce the damage from in vivo ischemia/reperfusion (I/R) using a rabbit model of I/R that has been effectively utilized to prove the effects of drugs and supplements to reduce oxidative stress...
May 8, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28474284/damage-associated-molecular-patterns-in-the-pathogenesis-of-osteoarthritis-potentially-novel-therapeutic-targets
#14
REVIEW
John H Rosenberg, Vikrant Rai, Matthew F Dilisio, Devendra K Agrawal
Osteoarthritis (OA) is a chronic disease that degrades the joints and is often associated with increasing age and obesity. The two most common sites of OA in adults are the knee and hip joints. Increased mechanical stress on the joint from obesity can cause the articular cartilage to degrade and release damage-associated molecular patterns (DAMPs). These DAMPs are involved in various molecular pathways that interact with nuclear factor-kappa B and result in the transcription of inflammatory cytokines and activation of matrix metalloproteinases that progressively destroy cartilage...
May 4, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28474283/hucmncs-protect-vascular-endothelium-and-prevent-isr-after-endovascular-interventional-therapy-for-vascular-diseases-in-t2dm-rabbits
#15
Haixia Ding, Tong Zhang, Yaping Du, Bei Liu, Yueqin Liu, Fujun Wang
The therapeutic effect of transplantation of human umbilical cord blood cell-derived mononuclear cells (HUCMNCs) on treating in-stent restenosis (ISR) after endovascular interventional therapy (EIT) was evaluated in preclinical rabbit model of type 2 diabetes mellitus (T2DM)-related peripheral artery disease (PAD). HUCMNCs were transplanted to T2DM rabbits subjected to femoral artery occlusion surgery and received EIT. Serum concentration of soluble vascular endothelial cadherin (VE-cad) and plasma concentration of lipoprotein-associated phospholipase A2 (Lp-PLA2) were determined with enzyme-linked immunosorbent assay before and after the transplantation...
May 4, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28470345/lncrna-ccat1-inhibits-cell-apoptosis-of-renal-cell-carcinoma-through-up-regulation-of-livin-protein
#16
Shaoan Chen, Pengpeng Ma, Bin Li, Dawei Zhu, Xiude Chen, Yuzhu Xiang, Tengteng Wang, Xiangbin Ren, Chuan Liu, Xunbo Jin
This study was to investigate the involvement of long non-coding RNA (lncRNA) colon cancer-associated transcript-1 (CCAT1) in renal cell carcinoma (RCC) and to further uncover its underlying mechanism. In this study, the expression of CCAT1 and Livin of RCC tissues or cells was determined using qRT-PCR (quantitative real-time PCR) and western blot, respectively. RNA pulldown and RIP (RNA-Binding Protein Immunoprecipitation) assays were performed to examine the sequence interaction between CCAT1 and Livin. The viability and apoptosis of RCC cells was assessed by MTT(3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) and TUNEL (TdT-mediated dUTP nick end labeling) assays, respectively...
May 3, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28470344/mitogenic-lectins-from-cephalosporium-curvulum-csl-and-aspergillus-oryzae-aol-mediate-host-pathogen-interactions-leading-to-mycotic-keratitis
#17
Suhas Ballal, Shivakumar Belur, Preeti Laha, Sanhita Roy, B M Swamy, Shashikala R Inamdar
A core-fucose-specific lectin, CSL from Cephalosporium curvulum, has been reported earlier. Here we assign the role for CSL and another lectin AOL, from pathogenic fungus Aspergillus oryzae, in causing mycotic keratitis. CSL and AOL show strong binding to immortalized and primary human corneal epithelial cells (HCECs) which are inhibited by asialofetuin, confirming their glycan-mediated binding. CSL and AOL showed increase in viability at lower concentrations (0.07 µg/ml) whereas at higher concentrations (0...
May 3, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28470343/pbmc-activation-via-the-erk-and-stat-signaling-pathways-enhances-the-anti-tumor-activity-of-staphylococcal-enterotoxin-a
#18
Xueting Liu, Liping Zeng, Zhongqiu Zhao, Jianxing He, Yang Xie, Lanyan Xiao, Shan Wang, Junyan Zhang, Zehong Zou, Ying He, Ailin Tao, Jianguo Zhang
Staphylococcal enterotoxin A (SEA) is well known as a superantigen and is highly potent in activating T lymphocytes. And it has been used clinically as an immunomodifier in the treatment of a number of tumors for years. However, the mechanism of its action remains largely unclear. In this study, SEA was found to significantly inhibit the proliferation and induce the death of human lung carcinoma A549 cells when co-cultured with human peripheral blood mononuclear cells (PBMCs). SEA could also induce the proliferation of human PBMCs and stimulate human PBMCs to release a wide range of cytokines that have broad anti-tumor activities such as IFN-γ, TNF-α, IL-2...
May 3, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28470342/ten-gigahertz-microwave-radiation-impairs-spatial-memory-enzymes-activity-and-histopathology-of-developing-mice-brain
#19
Archana Sharma, Kavindra Kumar Kesari, Virender Kumar Saxena, Rashmi Sisodia
For decades, there has been an increasing concern about the potential hazards of non-ionizing electromagnetic fields that are present in the environment and alarming as a major pollutant or electro-pollutant for health risk and neuronal diseases. Therefore, the objective of the present study was to explore the effects of 10 GHz microwave radiation on developing mice brain. Two weeks old mice were selected and divided into two groups (i) sham-exposed and (ii) microwave-exposed groups. Animals were exposed for 2 h/day for 15 consecutive days...
May 3, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28466458/rip1-dependent-reactive-oxygen-species-production-executes-artesunate-induced-cell-death-in-renal-carcinoma-caki-cells
#20
Anil Kumar Chauhan, Kyoung-Jin Min, Taeg Kyu Kwon
Artesunate is a well-known anti-malarial drug originated from artemisinin as a Chinese herb and has been reported to have anti-cancer potential in many cancer cells. In the present study, we examined the efficacy of artesunate against the renal carcinoma Caki cells and explored its mechanism of cytotoxicity. A steep decline in cell viability within 18 h was recorded upon artesunate exposure, but pretreatment of z-VAD-FMK had no effect on the loss of the cell viability by artesunate. On the other hand, necrostatin-1 pretreatment and knockdown of RIP-1 significantly reduced the cytotoxicity of artesunate against Caki cell...
May 2, 2017: Molecular and Cellular Biochemistry
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