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Journal of Cellular Physiology

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https://www.readbyqxmd.com/read/28436035/nap-counteracts-hyperglycemia-hypoxia-induced-retinal-pigment-epithelial-barrier-breakdown-through-modulation-of-hifs-and-vegf-expression
#1
Agata Grazia D'Amico, Grazia Maugeri, Daniela Maria Rasà, Valentina La Cognata, Salvatore Saccone, Concetta Federico, Sebastiano Cavallaro, Velia D'Agata
Diabetic macular edema (DME) is a common complication leading to a central vision loss in patients with diabetes. In this eye pathology, the hyperglycaemic/hypoxic microenvironment of pigmented epithelium is responsible for outer blood retinal barrier integrity changes. More recently, we have shown that a small peptide derived from the activity-dependent neuroprotective protein (ADNP), known as NAP, counteracts damages occurring during progression of diabetic retinopathy by modulating HIFs/VEGF pathway. Here, we have investigated for the first time the role of this peptide on outer blood retinal barrier (BRB) integrity exposed to hyperglycaemic/hypoxic insult mimicking a model in vitro of DME...
April 24, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28436029/wnt4-acts-downstream-of-bmp2-to-mediate-the-regulation-of-atra-signaling-on-runx1-expression-implications-for-terminal-differentiation-of-antler-chondrocytes
#2
Hong-Liang Zhang, Zhan-Qing Yang, Cui-Cui Duan, Shuang Geng, Kai Wang, Hai-Fan Yu, Zhan-Peng Yue, Bin Guo
Although ATRA is involved in regulating the proliferation and differentiation of chondrocytes, its underlying mechanism remains unknown. Here we showed that ATRA could stimulate the proliferation of antler chondrocytes and expression of COL X and MMP13 which were two well-known markers for hypertrophic chondrocytes. Silencing of CRABP2 prevented the induction of ATRA on chondrocyte terminal differentiation, while overexpression of CRABP2 exhibited the opposite effects. CYP26A1 and CYP26B1 weakened the sensitivity of antler chondrocytes to ATRA...
April 24, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28430356/crispr-cas9-an-rna-guided-highly-precise-synthetic-tool-for-plant-genome-editing
#3
REVIEW
Yeliz Demirci, Baohong Zhang, Turgay Unver
CRISPR/Cas 9 is a newly developed and naturally occurred genome editing tool, which is originally used by bacteria for immune defence. In the past years, it has been quickly employed and modified to precisely edit genome sequences in both plants and animals. Compared with the well-developed zinc finger nucleases (ZFNs) and transcription activator-like effector nucleases (TALENs), CRISPR/Cas 9 has lots of advantages, including easier to design and implement, higher targeting efficiency, and less expensive. Thus, it is becoming one of the most powerful tools for knockout of an individual gene as well as insertion of one gene and/or control of gene transcription...
April 21, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28425564/osteoblast-role-in-osteoarthritis-pathogenesis
#4
REVIEW
Nicola Maruotti, Addolorata Corrado, Francesco Paolo Cantatore
Even if osteoarthritis pathogenesis is still poorly understood, numerous evidences suggest that osteoblasts dysregulation plays a key role in osteoarthritis pathogenesis. An abnormal expression of OPG and RANKL has been described in osteoarthritis osteoblasts, which is responsible for abnormal bone remodeling and decreased mineralization. Alterations in genes expression are involved in dysregulation of osteoblast function, bone remodeling and mineralization, leading to osteoarthritis development. Moreover, osteoblasts produce numerous transcription factors, growth factors and other proteic molecules which are involved in osteoarthritis pathogenesis...
April 20, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28422287/genetic-variants-as-potential-predictive-biomarkers-in-advanced-colorectal-cancer-patients-treated-with-oxaliplatin-based-chemotherapy
#5
REVIEW
Afsane Bahrami, Forouzan Amerizadeh, Seyed Mahdi Hassanian, Soodabeh ShahidSales, Majid Khazaei, Mina Maftouh, Majid Ghayour-Mobarhan, Gordon A Ferns, Amir Avan
Chemotherapy regimen containing oxaliplatin is often the first-line treatment for patient with advanced colorectal cancer. Oxaliplatin binds to DNA, leading to the formation of crosslinks and bulky adducts. Approximately 50% of patients with CRC benefit from treatment with oxaliplatin. It is possible that genetic variants in biological pathways involved in drug transportation, drug metabolism, DNA damage repair, and cell cycle modulation might affect the activity, or efficacy of oxaliplatin. Because oxaliplatin resistance may be related to these genetic variants and may therefore be an important reason for treatment failure, we have summarized the genetic variations that have been reported to be predictive markers of the response to oxaliplatin based therapy in patients with advanced CRC...
April 19, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28422286/isorhapontigenin-induced-cell-growth-inhibition-and-apoptosis-by-targeting-egfr-related-pathways-in-prostate-cancer
#6
Cuicui Zhu, Qingyi Zhu, Zhaomeng Wu, Yingying Yin, Dan Kang, Shan Lu, Ping Liu
Isorhapontigenin (ISO), a naturally phytopolyphenol compound existing in Chinese herb, apples and various vegetables, has attracted extensive interest in recent years for its diverse pharmacological characteristics. Increasing evidences reveal that ISO can inhibit cancer cell growth by induced apoptosis, however the molecular mechanisms is not fully understood. In this study, we found for the first time that ISO apparently induced cell growth inhibition and apoptosis by targeting EGFR and its downstream signal pathways in prostate cancer (PCa) cells both in vitro and in vivo, whereas no obviously effect on normal prostate cells...
April 19, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28422285/hematopoietic-stem-progenitor-cell-differentiation-towards-myeloid-lineage-is-modulated-by-light-light-receptor-signaling
#7
Weikai Chen, Xin Lv, Changlong Liu, Ruoping Chen, Jianhe Liu, Haiyan Dai, Gang-Ming Zou
The cytokine LT-related inducible ligand that competes for glycoprotein D binding to herpesvirus entry mediator on T cells (LIGHT) is a member of the tumor necrosis factor (TNF) superfamily. It is expressed primarily on activated T lymphocytes, and detectable on monocytes, granulocytes, and immune dendritic cells. It mainly plays a role in immune regulation including T cell activation and dendritic cell maturation. We recently reported its role as an inducer in embryonic stem cell differentiation, but its role in regulation of adult stem cell has not been defined...
April 19, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28422283/agarose-hydrogel-induced-mcf-7-and-bmg-1-cell-line-progressive-3d-and-3d-revert-cultures
#8
Aishwarya Subramaniyan, Maddaly Ravi
3D culture systems have enhanced the utility of cancer cell lines as they are considered closer to the in vivo systems. A variety of changes are induced in cells cultured in 3D systems; an apparent and striking feature being the spontaneous acquisition of distinct morphological entities. 3D reverts (3DRs) can be obtained by introducing 3D aggregates in scaffold/matrix-free culture units. It could be seen that the two cell lines used in this study exhibited differences in 3DR structures, though both were cultured on agarose hydrogels...
April 19, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28419469/the-endoplasmic-reticulum-associated-protein-os-9-behaves-as-a-lectin-in-targeting-the-immature-calcium-sensing-receptor
#9
Bryan K Ward, Sarah L Rea, Aaron L Magno, Bernadette Pedersen, Suzanne J Brown, Shelby Mullin, Ajanthy Arulpragasam, Evan Ingley, Arthur D Conigrave, Thomas Ratajczak
The mechanisms responsible for the processing and quality control of the calcium-sensing receptor (CaSR) in the endoplasmic reticulum (ER) are largely unknown. In a yeast two-hybrid screen of the CaSR C-terminal tail (residues 865 -1078), we identified osteosarcoma-9 (OS-9) protein as a binding partner. OS-9 is an ER-resident lectin that targets misfolded glycoproteins to the ER-associated degradation (ERAD) pathway through recognition of specific N-glycans by its mannose-6-phosphate receptor homology (MRH) domain...
April 17, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28419458/therapeutic-potential-of-novel-formulated-forms-of-curcumin-in-the-treatment-of-breast-cancer-by-the-targeting-of-cellular-and-physiological-dysregulated-pathways
#10
REVIEW
Amir Tajbakhsh, Malihe Hasanzadeh, Mehdi Rezaee, Mostafa Khedri, Majid Khazaei, Soodabeh Shahid Sales, Gordon A Ferns, Seyed Mahdi Hassanian, Amir Avan
Breast cancer is among the most important causes of cancer related death in women. There is a need for novel agents for targeting key signaling pathways to either improve the efficacy of the current therapy, or reduce toxicity. There is some evidence that curcumin may have antitumor activity in breast cancer. Several clinical trials have investigated its activity in patients with breast cancer, including a recent trial in breast cancer patients receiving radiotherapy, in whom it was shown that curcumin reduced the severity of radiation dermatitis, although it is associated with low bioavailability...
April 17, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28419445/activation-of-clc-3-chloride-channel-by-17%C3%AE-estradiol-relies-on-the-estrogen-receptor-%C3%AE-expression-in-breast-cancer
#11
Haifeng Yang, Lianshun Ma, Yawei Wang, Wanhong Zuo, Bingxue Li, Yaping Yang, Yehui Chen, Lixin Chen, Liwei Wang, Linyan Zhu
Although extensively studied, the mechanisms by which estrogen promotes breast cancer growth remain to be fully elucidated. Tamoxifen, an antiestrogen to treat ERα+ breast cancer, is also a high-affinity blocker of the chloride channels. In this study, we explored the involvement of the chloride channels in the action of estrogen in breast cancer. We found that 17β-estradiol (17β-E2) concentration-dependently activated the chloride currents in ERα+ breast cancer MCF-7 cells. Extracellular hypertonic challenge and chloride channel blockers, NPPB and DIDS inhibited the 17β-E2-activated chloride currents...
April 17, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28419442/characterization-of-runx2-phosphorylation-sites-required-for-tgf-%C3%AE-1-mediated-stimulation-of-matrix-metalloproteinase-13-expression-in-osteoblastic-cells
#12
B Arumugam, M Vairamani, N C Partridge, N Selvamurugan
Transforming growth factor-beta1 (TGF-β1), a highly abundant growth factor in skeletal tissues, stimulates matrix metalloproteinase-13 (MMP-13) expression in osteoblastic cells. MMP-13 plays a critical role in bone remodeling. Runx2, a bone transcription factor, is required for TGF-β1-mediated stimulation of MMP-13 expression in osteoblastic cells. In this study, the molecular mechanism responsible for TGF-β1-stimulation of MMP-13 expression via Runx2 in osteoblastic cells was elucidated. TGF-β1 stimulated the phosphorylation of Runx2 at serine amino acids, and ERK inhibition blocked this effect in rat (UMR106-01) and human (MG-63) osteoblastic cells...
April 17, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28419435/osteogenic-differentiation-potential-of-mesenchymal-stem-cells-cultured-on-nanofibrous-scaffold-improved-in-the-presence-of-pulsed-electromagnetic-field
#13
Monireh Arjmand, Abdolreza Ardeshirylajimi, Hossein Maghsoudi, Esmaeel Azadian
Nowadays, tissue engineering by using stem cells in combination with scaffolds and bioactive molecules has made significant contributions to the regeneration of damaged bone tissues. Since the usage of bioactive molecules including, growth factors to induce differentiation is safety limited in clinical applications, and it has also been previously observed that extremely low frequency pulsed electromagnetic fields (PEMF) can be effective in the enhancement of proliferation rate and osteogenic differentiation of stem cells, the aim of this study was investigating the osteoinductive potential of PEMF in combination with Poly(caprolactone) (PCL) nanofibrous scaffold...
April 17, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28409836/platelet-derived-microparticles-regulates-thrombin-generation-via-phophatidylserine-in-abdominal-sepsis
#14
Yongzhi Wang, Su Zhang, Lingtao Luo, Eva Norström, Oscar Ö Braun, Matthias Mörgelin, Henrik Thorlacius
Sepsis is associated with dysfunctional coagulation. Recent data suggest that platelets play a role in sepsis by promoting neutrophil accumulation. Herein, we show that cecal ligation and puncture (CLP) triggered systemic inflammation, which is characterized by formation of IL-6 and CXC chemokines as well as neutrophil accumulation in the lung. Platelet depletion decreased neutrophil accumulation, IL-6 and CXC chemokines formation in septic lungs. Depletion of platelets increased peak thrombin formation and total thrombin generation (TG) in plasma from septic animals...
April 14, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28409828/leucine-elicits-myotube-hypertrophy-and-enhances-maximal-contractile-force-in-tissue-engineered-skeletal-muscle-in-vitro
#15
N R W Martin, M C Turner, R Farrington, D J Player, M P Lewis
The amino acid leucine is thought to be important for skeletal muscle growth by virtue of its ability to acutely activate mTORC1 and enhance muscle protein synthesis, yet little data exist regarding its impact on skeletal muscle size and its ability to produce force. We utilised a tissue engineering approach in order to test whether supplementing culture medium with leucine could enhance mTORC1 signalling, myotube growth and muscle function. Phosphorylation of the mTORC1 target proteins 4EBP-1 and rpS6 and myotube hypertrophy appeared to occur in a dose dependent manner, with 5 and 20mM of leucine inducing similar effects, which were greater than those seen with 1mM...
April 14, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28409819/spermicidal-efficacy-of-vrp-a-synthetic-cationic-antimicrobial-peptide-inducing-apoptosis-and-membrane-disruption
#16
Prasanta Ghosh, Arpita Bhoumik, Sudipta Saha, Sandipan Mukherjee, Sarfuddin Azmi, Jimut Kanti Ghosh, Sandhya Rekha Dungdung
Presently available contraceptives are mostly hormonal or detergent in nature with numerous side effects like irritation, lesion, inflammation in vagina, alteration of body homeostasis etc. Antimicrobial peptides with spermicidal activity but without adverse effects may be suitable alternatives. In the present study spermicidal activity of a cationic antimicrobial peptide VRP on human spermatozoa has been elucidated. Progressive forward motility of human spermatozoa was instantly stopped after 100 µM VRP treatment and at 350 µM all kinds of sperm motility ceased within 20 seconds as assessed by the Sander-Cramer assay...
April 14, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28407293/anti-tumor-effects-of-crocetin-and-related-molecular-targets
#17
REVIEW
Maliheh Moradzadeh, Hamid Reza Sadeghnia, Alijan Tabarraei, Amirhossein Sahebkar
Natural products have gained a wide popularity as chemopreventive and anti-cancer agents owing to their multi-mechanistic mode of action, availability and synergism with several conventional chemotherapeutic agents. Crocetin is a carotenoid compound isolated from the stigma of Crocus sativus L. (saffron). Crocetin has shown promising effects as an anti-tumor agent in animal models and cell culture systems. Crocetin retards the growth of cancer cells via inhibiting nucleic acid synthesis, enhancing anti-oxidative system, and inducing apoptosis and differentiation pathways...
April 13, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28407290/a-highly-efficient-method-for-extracting-next-generation-sequencing-quality-rna-from-adipose-tissue-of-recalcitrant-animal-species
#18
Davinder Sharma, Naresh Golla, Dheer Singh, Suneel Kumar Onteru
The next-generation sequencing (NGS) based RNA sequencing (RNA-Seq) and transcriptome profiling offers an opportunity to unveil complex evolutionary processes. Successful RNA-Seq and transcriptome profiling requires a large amount of high-quality RNA. However, NGS-quality RNA isolation is extremely difficult from recalcitrant adipose tissue (AT) with high lipid content and low cell numbers. Further, the amount and biochemical composition of AT lipid varies depending upon the animal species which can pose different degree of resistance to RNA extraction...
April 13, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28407244/complex-osteoclastogenic-inductive-effects-of-nicotine-over-hydroxyapatite
#19
J Costa-Rodrigues, I Rocha, M H Fernandes
Cigarette smoke is associated to pathological weakening of bone tissue, being considered an important playmaker in conditions such as osteoporosis and periodontal bone loss. In addition, it is also associated with an increased risk of failure in bone regeneration strategies. The present work aimed to characterize the effects of nicotine on human osteoclastogenesis over a hydroxyapatite substrate. Osteoclast precursors were maintained in the absence or presence of the osteoclastogenesis enhancers M-CSF and RANKL, and were further treated with nicotine levels representative of the concentrations observed in the plasma and saliva of smokers...
April 13, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28407241/leptin-accelerates-the-pathogenesis-of-heterotopic-ossification-in-rat-tendon-tissues-via-mtorc1-signaling
#20
Huaji Jiang, Yuhui Chen, Guorong Chen, Xinggui Tian, Jiajun Tang, Lei Luo, Minjun Huang, Bin Yan, Xiang Ao, Wen Zhou, Liping Wang, Xiaochun Bai, Zhongmin Zhang, Liang Wang, Cory J Xian
Leptin, an adipocyte-derived cytokine associated with bone metabolism, is believed to play a critical role in the pathogenesis of heterotopic ossification (HO). The effect and underlying action mechanism of leptin were investigated on osteogenic differentiation of tendon-derived stem cells (TDSCs) in vitro and the HO formation in rat tendons. Isolated rat TDSCs were treated with various concentrations of leptin in the presence or absence of mTORC1 signaling specific inhibitor rapamycin in vitro. A rat model with Achilles tenotomy was employed to evaluate the effect of leptin on HO formation together with or without rapamycin treatment...
April 13, 2017: Journal of Cellular Physiology
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