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cell signalling review

Wei-Lin Jin, Xiao-Yuan Mao, Guan-Zhong Qiu
Glioblastoma (GBM) is regarded as the most common primary intracranial neoplasm. Despite standard treatment with tumor resection and radiochemotherapy, the outcome remains gloomy. It is evident that a combination of oncogenic gain of function and tumor-suppressive loss of function has been attributed to glioma initiation and progression. The ubiquitin-proteasome system is a well-orchestrated system that controls the fate of most proteins by striking a dynamic balance between ubiquitination and deubiquitination of substrates, having a profound influence on the modulation of oncoproteins, tumor suppressors, and cellular signaling pathways...
October 24, 2016: Medicinal Research Reviews
Y-M Feng, X-H Chen, X Zhang
Platelet endothelial cell adhesion molecule-1 (PECAM-1/CD31) belongs to immunoglobulin superfamily, which is key factor for adhesion and accumulation of platelets. It is proved that PECAM-1 is closely correlative with cell migration, proliferation, apoptosis, signal transduction and cellular immunity. Meanwhile, PECAM-1 involves in multiple clinical diseases, such as atherosclerosis, thrombosis and leukemia. This paper reviewed the structure and function of PECAM-1, and its roles in cell function and disease generation and progression...
October 2016: European Review for Medical and Pharmacological Sciences
I C Haznedaroglu, U Y Malkan
The existence of a local renin-angiotensin system (RAS) specific to the hematopoietic bone marrow (BM) microenvironment had been proposed two decades ago. Most of the RAS molecules including ACE, ACE2, AGT, AGTR1, AGTR2, AKR1C4, AKR1D1, ANPEP, ATP6AP2, CMA1, CPA3, CTSA, CTSD, CTSG, CYP11A1, CYP11B1, CYP11B2, CYP17A1, CYP21A2, DPP3, EGFR, ENPEP, GPER, HSD11B1, HSD11B2, IGF2R, KLK1, LNPEP, MAS1, MME, NR3C1, NR3C2, PREP, REN, RNPEP, and THOP1 are locally present in the BM microenvironment. Local BM RAS peptides control the hematopoietic niche, myelopoiesis, erythropoiesis, thrombopoiesis and the development of other cellular lineages...
October 2016: European Review for Medical and Pharmacological Sciences
Magdalena Paolino, Josef M Penninger
The TAM receptor protein tyrosine kinases-Tyro3, Axl, and Mer-are essential regulators of immune homeostasis. Guided by their cognate ligands Growth arrest-specific gene 6 (Gas6) and Protein S (Pros1), these receptors ensure the resolution of inflammation by dampening the activation of innate cells as well as by restoring tissue function through promotion of tissue repair and clearance of apoptotic cells. Their central role as negative immune regulators is highlighted by the fact that deregulation of TAM signaling has been linked to the pathogenesis of autoimmune, inflammatory, and infectious diseases...
October 21, 2016: Cancers
M Cebová, M Košútová, O Pecháňová
Gasotransmitters represent a subfamily of the endogenous gaseous signaling molecules that include nitric oxide (NO), carbon monoxide (CO), and hydrogen sulphide (H(2)S). These particular gases share many common features in their production and function, but they fulfill their physiological tasks in unique ways that differ from those of classical signaling molecules found in tissues and organs. These gasotransmitters may antagonize or potentiate each other's cellular effects at the level of their production, their downstream molecular targets and their direct interactions...
October 24, 2016: Physiological Research
Sho-Ichi Yamagishi, Takanori Matsui, Yuji Ishibashi, Fumiyuki Isami, Yumi Abe, Tatsuya Sakaguchi, Yuichiro Higashimoto
Reducing sugars can react non-enzymatically with amino groups of proteins and lipids to form irreversibly cross-linked macroprotein derivatives called as advanced glycation end products (AGEs). Cross-linking modification of extracellular matrix proteins by AGEs deteriorate their tertiary structural integrity and function, contributing to aging-related organ damage and diabetes-associated complications, such as cardiovascular disease (CVD). Moreover, engagement of receptor for AGEs, RAGE with the ligands evoke oxidative stress generation and inflammatory, thrombotic and fibrotic reactions in various kinds of tissues, further exacerbating the deleterious effects of AGEs on multiple organ systems...
October 21, 2016: Current Pharmaceutical Design
Pedro Casado, Maruan Hijazi, David Britton, Pedro R Cutillas
Signalling pathways driven by protein and lipid kinases are altered in most human diseases. Therefore, pharmacological inhibitors of cell signalling are one of the most intensively pursued therapeutic approaches for the treatment of diseases such as cancer, neurodegeneration and metabolic syndromes. Phosphoproteomics is a technique that measures the products of kinase activities and, with the appropriate bioinformatics techniques, the methodology can also provide measures of kinase pathway activation and network circuitry...
October 24, 2016: Proteomics
Jose Maria Carvajal-Gonzalez, Sonia Mulero-Navarro, Marek Mlodzik
Planar cell polarity (PCP)-signaling and associated tissue polarization are evolutionarily conserved. A well documented feature of PCP-signaling in vertebrates is its link to centriole/cilia positioning, although the relationship of PCP and ciliogenesis is still debated. A recent report in Drosophila established that Frizzled (Fz)-PCP core signaling has an instructive input to polarized centriole positioning in non-ciliated Drosophila wing epithelia as a PCP read-out. Here, we review the impact of this observation in the context of recent descriptions of the relationship(s) of core Fz-PCP signaling and cilia/centriole positioning in epithelial and non-epithelial cells...
October 24, 2016: BioEssays: News and Reviews in Molecular, Cellular and Developmental Biology
Nisha Panth, Keshav Raj Paudel, Kalpana Parajuli
Cardiovascular diseases (CVDs) have been the prime cause of mortality worldwide for decades. However, the underlying mechanism of their pathogenesis is not fully clear yet. It has been already established that reactive oxygen species (ROS) play a vital role in the progression of CVDs. ROS are chemically unstable reactive free radicals containing oxygen, normally produced by xanthine oxidase, nicotinamide adenine dinucleotide phosphate oxidase, lipoxygenases, or mitochondria or due to the uncoupling of nitric oxide synthase in vascular cells...
2016: Advances in Medicine
Xiangyang Xia, Quanwei Tao, Qunchao Ma, Huiqiang Chen, Jian'an Wang, Hong Yu
Mesenchymal stromal cells (MSCs) are promising candidates for regenerative medicine because of their multipotency, immune-privilege, and paracrine properties including the potential to promote angiogenesis. Accumulating evidence suggests that the inherent properties of cytoprotection and tissue repair by native MSCs can be enhanced by various preconditioning stimuli implemented prior to cell transplantation. Growth hormone-releasing hormone (GHRH), a stimulator in extrahypothalamus systems including tumors, has attracted great attentions in recent years because GHRH and its agonists could promote angiogenesis in various tissues...
2016: Stem Cells International
Jorge L Gutierrez-Pajares, Céline Ben Hassen, Stéphan Chevalier, Philippe G Frank
Studies have demonstrated the significant role of cholesterol and lipoprotein metabolism in the progression of cancer. The SCARB1 gene encodes the scavenger receptor class B type I (SR-BI), which is an 82-kDa glycoprotein with two transmembrane domains separated by a large extracellular loop. SR-BI plays an important role in the regulation of cholesterol exchange between cells and high-density lipoproteins. Accordingly, hepatic SR-BI has been shown to play an essential role in the regulation of the reverse cholesterol transport pathway, which promotes the removal and excretion of excess body cholesterol...
2016: Frontiers in Pharmacology
Ana B García-Redondo, Andrea Aguado, Ana M Briones, Mercedes Salaices
Reactive oxygen species (ROS) are key signaling molecules that regulate vascular function and structure in physiological conditions. A misbalance between the production and detoxification of ROS increases oxidative stress that is involved in the vascular remodeling associated with cardiovascular diseases such as hypertension by affecting inflammation, hypertrophy, migration, growth/apoptosis and extracellular matrix protein turnover. The major and more specific source of ROS in the cardiovascular system is the NADPH oxidase (NOX) family of enzymes composed of seven members (NOX1-5, DUOX 1/2)...
October 20, 2016: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
Barbara Jung, Jonas J Staudacher, Daniel Beauchamp
Transforming growth factor beta (TGFB) cytokines signal via a complex network of pathways to regulate proliferation, differentiation, adhesion, migration, and other functions in many cell types. A high percentage of colorectal tumors contain mutations that disrupt TGFB family member signaling. We review how TGFB family member signaling is altered during development of colorectal cancer, models of study, interaction of pathways, and potential therapeutic strategies.
October 20, 2016: Gastroenterology
Li Yu, Ling Li, L Jeffrey Medeiros, Ken H Young
The NF-κB pathway, a critical regulator of apoptosis, plays a key role in many normal cellular functions. Genetic alterations and other mechanisms leading to constitutive activation of the NF-κB pathway contribute to cancer development, progression and therapy resistance by activation of downstream anti-apoptotic pathways, unfavorable microenvironment interactions, and gene dysregulation. Not surprisingly, given its importance to normal and cancer cell function, the NF-κB pathway has emerged as a target for therapy...
October 13, 2016: Blood Reviews
Takanori Yamada, Ken Sugimoto
Guggulsterone is a plant sterol derived from gum resin of Commiphora wightii. The gum resin from guggul plants has been used for thousand years in Ayurveda to treat various disorders, including internal tumors, obesity, liver disorders, malignant sores and ulcers, urinary complaints, intestinal worms, leucoderma, sinuses, edema, and sudden paralytic seizures. Guggulsterone has been identified a bioactive components of this gum resin. This plant steroid has been reported to work as an antagonist of certain nuclear receptors, especially farnesoid X receptor, which regulates bile acids and cholesterol metabolism...
2016: Advances in Experimental Medicine and Biology
Ana Clara Aprotosoaie, Irina-Iuliana Costache, Anca Miron
Anethole is the main fragrance and bioactive compound of anise, fennel, and star anise spices and more than other 20 plant species. It is widely used as flavor agent in food industry and other industries, in cosmetics, perfumery, and pharmaceuticals. In the last few years, various studies have revealed multiple beneficial effects of anethole for human health, such as anti-inflammatory, anticarcinogenic and chemopreventive, antidiabetic, immunomodulatory, neuroprotective, or antithrombotic, that are mediated by the modulation of several cell signaling pathways, mainly NF-kB and TNF-α signaling, and various ion channels...
2016: Advances in Experimental Medicine and Biology
E S Fernandes, A R A Cerqueira, A G Soares, Soraia K P Costa
A significant number of experimental and clinical studies published in peer-reviewed journals have demonstrated promising pharmacological properties of capsaicin in relieving signs and symptoms of non-communicable diseases (chronic diseases). This chapter provides an overview made from basic and clinical research studies of the potential therapeutic effects of capsaicin, loaded in different application forms, such as solution and cream, on chronic diseases (e.g. arthritis, chronic pain, functional gastrointestinal disorders and cancer)...
2016: Advances in Experimental Medicine and Biology
Camila Cristina Guimarães Nobre, Josélio Maria Galvão de Araújo, Thales Allyrio Araújo de Medeiros Fernandes, Ricardo Ney Oliveira Cobucci, Daniel Carlos Ferreira Lanza, Vânia Sousa Andrade, José Veríssimo Fernandes
Macrophage migration inhibitory factor (MIF) emerged in recent years as an important inflammation mediator, playing a prominent role in the pathogenesis of various types of malignant neoplasm. MIF is a glycoprotein that presents a wide spectrum of biological activities and exerts a complex interaction with various cellular signaling pathways, causing imbalance of homeostasis. Experimental and clinical studies show that high levels of MIF are found in almost all types of human cancers and are implicated in seemingly all stages of development of the tumors...
October 23, 2016: Pathology Oncology Research: POR
Chia-Feng Liu, William E Samsa, Guang Zhou, Véronique Lefebvre
A milestone in the evolutionary emergence of vertebrates was the invention of cartilage, a tissue that has key roles in modeling, protecting and complementing the bony skeleton. Cartilage is elaborated and maintained by chondrocytes. These cells derive from multipotent skeletal progenitors and they perform highly specialized functions as they proceed through sequential lineage commitment and differentiation steps. They form cartilage primordia, the primary skeleton of the embryo. They then transform these primordia either into cartilage growth plates, temporary drivers of skeletal elongation and endochondral ossification, or into permanent tissues, namely articular cartilage...
October 19, 2016: Seminars in Cell & Developmental Biology
J Gourlay, A P Morokoff, R B Luwor, H-J Zhu, A H Kaye, S S Stylli
Extracellular vesicles (EVs) are known mediators of intercellular communication for both normal and tumour cells. With the capability to transfer nucleic acids, proteins and lipids, EVs are able to influence numerous functional and pathological aspects of both donor and recipient cells. The tumour microenvironment possesses a high level of complex heterogeneity, particularly within the most prominent brain malignancy, glioblastoma multiforme (GBM). This complexity relies on a network-based communication between many different components of the local niche, including the various cell types, stroma, blood vessels, secreted factors and surrounding matrix...
October 19, 2016: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
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