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Cellular & Molecular Biology Letters

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https://www.readbyqxmd.com/read/29456557/the-altered-expression-of-perineuronal-net-elements-during-neural-differentiation
#1
Nazli F Eskici, Sevim Erdem-Ozdamar, Didem Dayangac-Erden
Background: Perineuronal nets (PNNs), which are localized around neurons during development, are specialized forms of neural extracellular matrix with neuroprotective and plasticity-regulating roles. Hyaluronan and proteoglycan link protein 1 (HAPLN1), tenascin-R (TNR) and aggrecan (ACAN) are key elements of PNNs. In diseases characterized by neuritogenesis defects, the expression of these proteins is known to be downregulated, suggesting that PNNs may have a role in neural differentiation...
2018: Cellular & Molecular Biology Letters
https://www.readbyqxmd.com/read/29416550/the-wnt7b-%C3%AE-catenin-signaling-pathway-is-involved-in-the-protective-action-of-calcitonin-gene-related-peptide-on-hyperoxia-induced-lung-injury-in-premature-rats
#2
Shaohua Wang, Hongxing Dang, Feng Xu, Jian Deng, Xuemei Zheng
Background: Calcitonin gene-related peptide (CGRP) can protect against hyperoxia-induced lung injury, making the upregulation of CGRP a potential therapeutic approach for this type of injury. However, the effects of CGRP on the Wnt7b/β-catenin signaling pathway are unclear. In this study, we investigated the roles of CGRP and the Wnt7b/β-catenin signaling pathway in hyperoxia-induced lung injury. Methods: Premature Sprague Dawley (SD) rats were exposed to 21, 40, 60 and 95% oxygen for 3, 7 and 14 days...
2018: Cellular & Molecular Biology Letters
https://www.readbyqxmd.com/read/29308069/orally-administered-endoxifen-inhibits-tumor-growth-in-melanoma-bearing-mice
#3
Paul Chen, Saifuddin Sheikh, Ateeq Ahmad, Shoukath M Ali, Moghis U Ahmad, Imran Ahmad
Endoxifen, an active metabolite of tamoxifen, has been shown to be an effective anti-estrogenic agent in estrogen receptor-positive breast cancer patients. In melanoma, estrogen receptor expression is shown to be associated with disease progression. However, the therapeutic benefit of endoxifen in melanoma has not yet been evaluated. Here, we present the first demonstration of the anti-melanogenic activity of endoxifen in vitro and in vivo. The in vitro cytotoxic effect of endoxifen was tested using a cell viability assay...
2018: Cellular & Molecular Biology Letters
https://www.readbyqxmd.com/read/29308068/vegf-and-sema4d-have-synergistic-effects-on-the-promotion-of-angiogenesis-in-epithelial-ovarian-cancer
#4
Ying Chen, Lei Zhang, Wen-Xin Liu, Ke Wang
Background: Anti-angiogenesis therapy that targets VEGF is one of the important treatment strategies in advanced ovarian cancer. However, depending on the pharmaceutical agent, treatment can have undesirable side effects. SEMA4D has recently gained interest for its role in promoting angiogenesis. Here, we try to further understand the mechanism by which SEMA4D promotes angiogenesis in ovarian cancer. Methods: Correlation and western blot assaya were used to detect the relationship between VEGF and SEMA4D in clinical tissues and cells...
2018: Cellular & Molecular Biology Letters
https://www.readbyqxmd.com/read/29308067/effects-of-calcium-ionophore-a23187-on-the-apoptosis-of-hepatic-stellate-cells-stimulated-by-transforming-growth-factor-%C3%AE-1
#5
Yanan Li, Yu Yan, Fang Liu, Ming Wang, Fumin Feng, Yonghong Xiao
Background: Our previous study showed that during in vitro experiments changes in calcium concentration were associated with apoptosis. We presumed that the calcium ion might play a role as intermediate messenger for apoptosis-related genes. No such evidence has been reported in the literature. Here, we investigate the effect of calcium ionophore A23187 on the apoptosis of rat hepatic stellate cells (HSCs) stimulated by transforming growth factor-β1 (TGF-β1) to explore the mechanism of apoptosis through the endoplasmic reticulum stress pathway...
2018: Cellular & Molecular Biology Letters
https://www.readbyqxmd.com/read/29299035/ectopic-expression-of-twist1-upregulates-the-stemness-marker-oct4-in-the-esophageal-squamous-cell-carcinoma-cell-line-kyse30
#6
Mohammad Hossein Izadpanah, Mohammad Reza Abbaszadegan, Yasaman Fahim, Mohammad Mahdi Forghanifard
Background: The transcription factor TWIST1 plays an important role in the epithelial-mesenchymal transition (EMT) process and in the migration, invasion and metastasis of cancer cells. OCT4, which is a homeobox transcription factor, has an important role in the self-renewal potential of cancer cells. Our aim here is to elucidate impact of ectopic expression of TWIST1 on OCT4 gene expression in esophageal squamous cell carcinoma (ESCC). Methods: The ESCC line was KYSE30...
2017: Cellular & Molecular Biology Letters
https://www.readbyqxmd.com/read/29299034/the-crucial-role-of-sema3f-in-suppressing-the-progression-of-oral-squamous-cell-carcinoma
#7
Yi Liu, Ronghua Li, Kai Yin, Gang Ren, Yongdong Zhang
Background: Oral squamous cell carcinoma (OSCC) is one of the most common types of malignancy. Semaphorin 3F (SEMA3F) is highly conserved but present at a lower level in various cancers than in healthy tissues. While it has been reported that SEMA3F is involved in cancer cell proliferation, migration and invasion, its function in OSCC remains unknown. Methods: The expression of SEMA3F in OSCC tissues and OSCC-derived cells was analyzed using qRT-PCR and western blotting...
2017: Cellular & Molecular Biology Letters
https://www.readbyqxmd.com/read/29299033/the-mechanism-of-taxifolin-s-protective-antioxidant-effect-for-%C3%A2-oh-treated-bone-marrow-derived-mesenchymal-stem-cells
#8
Xican Li, Hong Xie, Qian Jiang, Gang Wei, Lishan Lin, Changying Li, Xingmei Ou, Lichan Yang, Yulu Xie, Zhen Fu, Yamei Liu, Dongfeng Chen
The natural dihydroflavonol (+) taxifolin was investigated for its protective effect on Fenton reagent-treated bone marrow-derived mesenchymal stem cells (bmMSCs). Various antioxidant assays were used to determine the possible mechanism. These included •OH-scavenging, 2-phenyl-4, 4, 5, 5-tetramethylimidazoline-1-oxyl-3-oxide radical-scavenging (PTIO•-scavenging), 1, 1-diphenyl-2-picryl-hydrazl radical-scavenging (DPPH•-scavenging), 2, 2'-azino-bis (3-ethylbenzo-thiazoline-6-sulfonic acid) radical-scavenging (ABTS+•-scavenging), Fe3+-reducing, and Cu2+-reducing assays...
2017: Cellular & Molecular Biology Letters
https://www.readbyqxmd.com/read/29270202/knockdown-of-rab21-inhibits-proliferation-and-induces-apoptosis-in-human-glioma-cells
#9
Jian Ge, Qianxue Chen, Baohui Liu, Long Wang, Shenqi Zhang, Baowei Ji
Background: Gliomas are commonly malignant tumors that arise in the human central nervous system and have a low overall five-year survival rate. Previous studies reported that several members of Rab GTPase family are involved in the development of glioma, and abnormal expression of Rab small GTPases is known to cause aberrant tumor cell behavior. In this study, we characterized the roles of Rab21 (Rab GTPase 21), a member of Rab GTPase family, in glioma cells. Methods: The study involved downregulation of Rab21 in two glioma cell lines (T98G and U87) through transfection with specific-siRNA...
2017: Cellular & Molecular Biology Letters
https://www.readbyqxmd.com/read/29270201/the-role-of-bone-marrow-mononuclear-cell-conditioned-medium-in-the-proliferation-and-migration-of-human-dermal-fibroblasts
#10
Yolanda Menéndez-Menéndez, Jesús Otero-Hernández, Jose Antonio Vega, Marcos Pérez-Basterrechea, Silvia Pérez-López, María Álvarez-Viejo, Amaia Ferrero-Gutiérrez
Background: Several recent studies have demonstrated the great potential of bone marrow cells in regenerative medicine, not only for their ability to differentiate to match a damaged cell type, but also because they synthesize and release various growth factors and cytokines.We examined the effect of bone marrow cell-conditioned medium in the healing process, especially in terms of fibroblast proliferation and migration. Methods: These in vitro studies consisted of co-culture (without direct contact) of dermal fibroblasts with mononuclear bone marrow cells and the use of conditioned medium obtained from these cultures in a scratch wound model...
2017: Cellular & Molecular Biology Letters
https://www.readbyqxmd.com/read/29225630/bio-and-chemocatalysis-cascades-as-a-bridge-between-biology-and-chemistry-for-green-polymer-synthesis
#11
REVIEW
Aleksandra Marszałek-Harych, Dawid Jędrzkiewicz, Jolanta Ejfler
The development and integration of bio- and chemocatalytic processes to convert renewable or biomass feedstocks into polymers is a vibrant field of research with enormous potential for environmental protection and the mitigation of global warming. Here, we review the biotechnological and chemical synthetic strategies for producing platform monomers from bio-based sources and transforming them into eco-polymers. We also discuss their advanced bio-application using the example of polylactide (PLA), the most valuable green polymer on the market...
2017: Cellular & Molecular Biology Letters
https://www.readbyqxmd.com/read/29213293/collagen-derived-dipeptide-prolyl-hydroxyproline-promotes-osteogenic-differentiation-through-foxg1
#12
Yoshifumi Kimira, Haruka Odaira, Kaho Nomura, Yuri Taniuchi, Naoki Inoue, Sachie Nakatani, Jun Shimizu, Masahiro Wada, Hiroshi Mano
Prolyl-hydroxyproline (Pro-Hyp) is one of the major constituents of collagen-derived dipeptides. We previously reported that Pro-Hyp promotes the differentiation of osteoblasts by increasing Runx2, osterix and Col1α1 mRNA expression levels. Here, to elucidate the mechanism of Pro-Hyp promotion of osteoblast differentiation, we focus on the involvement of Foxo1 in osteoblast differentiation via Runx2 regulation and the role of Foxg1 in Foxo1 regulation. The addition of Pro-Hyp had no effect on MC3T3-E1 cell proliferation in Foxo1- or Foxg1-knockdown cells...
2017: Cellular & Molecular Biology Letters
https://www.readbyqxmd.com/read/29213292/ifn-%C3%AE-1-in-cho-cells-its-expression-and-biological-activity
#13
Wu-Mei Yuan, Wan-Ju Zhang, Fen-Lian Ma, Jin-Song Li, Qian Zhang, Li-Shu Zheng
Background: Many studies have investigated the characteristics and biological activities of type III interferon (IFN), finding that it has similar features to type I IFN but also unique actions because it is recognized by a different receptor. Results: A full-length recombinant human IFN-λ1 (rhIFN-λ1) cDNA was cloned into the pDF expression vector and stably expressed in Flp-In-CHO cells. After four purification steps (ammonium sulfate precipitation, SP Sepharose chromatography, Blue Sepharose 6 fast flow affinity chromatography and molecular sieve chromatography), the rhIFN-λ1 had a purity of about 90% and was found to have the predicted biological activities...
2017: Cellular & Molecular Biology Letters
https://www.readbyqxmd.com/read/29213291/apolipoprotein-e-polymorphism-and-the-risk-of-aneurysmal-subarachnoid-hemorrhage-in-a-south-indian-population
#14
Arati Suvatha, Sibin Madathan Kandi, Dhananjaya Ishwara Bhat, Narasinga Rao, Vikas Vazhayil, Chetan Ghati Kasturirangan
Background: The rupture of a brain aneurysm causes bleeding in the subarachnoid space. This is known as aneurysmal subarachnoid hemorrhage (aSAH). We evaluated the association of apolipoprotein E (APOE) polymorphism and the risk of aSAH in a South Indian population. Methods: The study was performed on 200 subjects with aSAH and 253 healthy control subjects. Blood samples (5 ml) were used to isolate DNA and genotyping was performed for rs7412 and rs429358 using a Taqman allelic discrimination assay...
2017: Cellular & Molecular Biology Letters
https://www.readbyqxmd.com/read/29209372/heat-shock-protein-27-plays-a-protective-role-in-thoracic-aortic-dissection-by-promoting-cell-proliferation-and-inhibiting-apoptosis
#15
Sili Zou, Mingfang Liao, Junlin Yang, Tong Huang, Mark Green, Jianjin Wu, Lefeng Qu
Background: Thoracic aortic dissection (TAD) is one of the most severe aortic diseases. The study aimed to explore the potential role of heat shock protein 27 (HSP27) in the pathogenesis of TAD using an in vitro model of oxidative stress in vascular smooth muscle cells (VSMCs). Methods: HSP27 was analyzed in aortic surgical specimens from 12 patients with TAD and 8 healthy controls. A lentiviral vector was used to overexpress HSP27 in rat aortic VSMCs. Cell proliferation and apoptosis were measured under oxidative stress induced by H2O2...
2017: Cellular & Molecular Biology Letters
https://www.readbyqxmd.com/read/29167681/mir-200b-downregulates-cftr-during-hypoxia-in-human-lung-epithelial-cells
#16
Sylwia Bartoszewska, Wojciech Kamysz, Bogdan Jakiela, Marek Sanak, Jarosław Króliczewski, Zsuzsa Bebok, Rafal Bartoszewski, James F Collawn
Background: Hypoxic conditions induce the expression of hypoxia-inducible factors (HIFs) that allow cells to adapt to the changing conditions and alter the expression of a number of genes including the cystic fibrosis transmembrane conductance regulator (CFTR). CFTR is a low abundance mRNA in airway epithelial cells even during normoxic conditions, but during hypoxia its mRNA expression decreases even further. Methods: In the current studies, we examined the kinetics of hypoxia-induced changes in CFTR mRNA and protein levels in two human airway epithelial cell lines, Calu-3 and 16HBE14o-, and in normal primary bronchial epithelial cells...
2017: Cellular & Molecular Biology Letters
https://www.readbyqxmd.com/read/29118814/tgf-%C3%AE-1-induced-epithelial-mesenchymal-transition-in-lung-cancer-cells-involves-upregulation-of-mir-9-and-downregulation-of-its-target-e-cadherin
#17
Hui Wang, Qian Wu, Ying Zhang, Hua-Nan Zhang, Yong-Bin Wang, Wei Wang
Background: TGF-β1 plays an important role in the epithelial-mesenchymal transition (EMT) of epithelial cancers, including non-small cell lung cancer (NSCLC). While the full underlying mechanism remains unclear, miR-9 is known to play a critical role in the regulation of NSCLC cell invasion. We tested whether miR-9 targets E-cadherin and thus affects TGF-β1-induced EMT in NSCLC cells by assessing the expression levels of miR-9 and E-cadherin for NSCLC patients and then verifying the targeting of E-cadherin by miR-9 using the dual luciferase reporter system...
2017: Cellular & Molecular Biology Letters
https://www.readbyqxmd.com/read/28932249/the-novel-protein-c3orf43-accelerates-hepatocyte-proliferation
#18
Chunyan Zhang, Cuifang Chang, Deming Li, Fuchun Zhang, Cunshuan Xu
BACKGROUND: Our previous study found that single-pass membrane protein with coiled-coil domains 1 (C3orf43; XM_006248472.3) was significantly upregulated in the proliferative phase during liver regeneration. This indicates that C3orf43 plays a vital role in liver cell proliferation. However, its physiological functions remains unclear. METHODS: The expressions of C3orf43 in BRL-3A cells transfected with C3orf43-siRNA (C3-siRNA) or overexpressing the vector plasmid pCDH-C3orf43 (pCDH-C3) were measured via RT-qPCR and western blot...
2017: Cellular & Molecular Biology Letters
https://www.readbyqxmd.com/read/28878809/are-online-prediction-tools-a-valid-alternative-to-genomic-profiling-in-the-context-of-systemic-treatment-of-er-positive-breast-cancer
#19
REVIEW
Umar Wazir, Kinan Mokbel, Amtul Carmichael, Kefah Mokbel
BACKGROUND: Clinicians use clinical and pathological parameters, such as tumour size, grade and nodal status, to make decisions on adjuvant treatments for breast cancer. However, therapeutic decisions based on these features tend to vary due to their subjectivity. Computational and mathematical algorithms were developed using clinical outcome data from breast cancer registries, such as Adjuvant! Online and NHS PREDICT. More recently, assessments of molecular profiles have been applied in the development of better prognostic tools...
2017: Cellular & Molecular Biology Letters
https://www.readbyqxmd.com/read/28878808/luteolin-quercetin-genistein-and-quercetagetin-inhibit-the-effects-of-lipopolysaccharide-obtained-from-porphyromonas-gingivalis-in-h9c2-cardiomyoblasts
#20
Gloria Gutiérrez-Venegas, Alfredo Torras-Ceballos, Juan Arturo Gómez-Mora, Berenice Fernández-Rojas
BACKGROUND: One of the microorganisms from dental plaque associated with severe inflammatory responses in infectious endocarditis is Porphyromonas gingivalis. It is a Gram-negative bacteria harvested from chronic periodontitis patients. Lipopolysaccharide (LPS) obtained from P. gingivalis promotes the expressions of interleukin-1 (IL-1), IL-6 and tumor necrosis factor alpha (TNF-α). Flavonoids are thought to participate in processes that control inflammation, such as the expression of cyclooxygenase-2 (COX-2)...
2017: Cellular & Molecular Biology Letters
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