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Frontiers in Cell and Developmental Biology

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https://www.readbyqxmd.com/read/28529939/naturally-engineered-maturation-of-cardiomyocytes
#1
REVIEW
Gaetano J Scuderi, Jonathan Butcher
Ischemic heart disease remains one of the most prominent causes of mortalities worldwide with heart transplantation being the gold-standard treatment option. However, due to the major limitations associated with heart transplants, such as an inadequate supply and heart rejection, there remains a significant clinical need for a viable cardiac regenerative therapy to restore native myocardial function. Over the course of the previous several decades, researchers have made prominent advances in the field of cardiac regeneration with the creation of in vitro human pluripotent stem cell-derived cardiomyocyte tissue engineered constructs...
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/28529938/senescence-inflammatory-regulation-of-reparative-cellular-reprogramming-in-aging-and-cancer
#2
Javier A Menendez, Tomás Alarcón
The inability of adult tissues to transitorily generate cells with functional stem cell-like properties is a major obstacle to tissue self-repair. Nuclear reprogramming-like phenomena that induce a transient acquisition of epigenetic plasticity and phenotype malleability may constitute a reparative route through which human tissues respond to injury, stress, and disease. However, tissue rejuvenation should involve not only the transient epigenetic reprogramming of differentiated cells, but also the committed re-acquisition of the original or alternative committed cell fate...
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/28523267/a-novel-role-for-the-bmp-antagonist-noggin-in-sensitizing-cells-to-non-canonical-wnt-5a-ror2-disheveled-pathway-activation
#3
Ondrej Bernatik, Tomasz Radaszkiewicz, Martin Behal, Zankruti Dave, Florian Witte, Annika Mahl, Nicole H Cernohorsky, Pavel Krejci, Sigmar Stricker, Vitezslav Bryja
Mammalian limb development is driven by the integrative input from several signaling pathways; a failure to receive or a misinterpretation of these signals results in skeletal defects. The brachydactylies, a group of overlapping inherited human hand malformation syndromes, are mainly caused by mutations in BMP signaling pathway components. Two closely related forms, Brachydactyly type B2 (BDB2) and BDB1 are caused by mutations in the BMP antagonist Noggin (NOG) and the atypical receptor tyrosine kinase ROR2 that acts as a receptor in the non-canonical Wnt pathway...
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/28523266/stimulating-fracture-healing-in-ischemic-environments-does-oxygen-direct-stem-cell-fate-during-fracture-healing
#4
REVIEW
Katherine R Miclau, Sloane A Brazina, Chelsea S Bahney, Kurt D Hankenson, Thomas K Hunt, Ralph S Marcucio, Theodore Miclau
Bone fractures represent an enormous societal and economic burden as one of the most prevalent causes of disability worldwide. Each year, nearly 15 million people are affected by fractures in the United States alone. Data indicate that the blood supply is critical for fracture healing; as data indicate that concomitant bone and vascular injury are major risk factors for non-union. However, the various role(s) that the vasculature plays remains speculative. Fracture stabilization dictates stem cell fate choices during repair...
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/28516085/analysis-of-septin-reorganization-at-cytokinesis-using-polarized-fluorescence-microscopy
#5
Molly McQuilken, Maximilian S Jentzsch, Amitabh Verma, Shalin B Mehta, Rudolf Oldenbourg, Amy S Gladfelter
Septins are conserved filament-forming proteins that act in diverse cellular processes. They closely associate with membranes and, in some systems, components of the cytoskeleton. It is not well understood how filaments assemble into higher-order structures in vivo or how they are remodeled throughout the cell cycle. In the budding yeast S. cerevisiae, septins are found through most of the cell cycle in an hourglass organization at the mother-bud neck until cytokinesis when the collar splits into two rings that disassemble prior to the next cell cycle...
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/28507987/pitx2-in-embryonic-and-adult-myogenesis
#6
REVIEW
Francisco Hernandez-Torres, Lara Rodríguez-Outeiriño, Diego Franco, Amelia E Aranega
Skeletal muscle is a heterogeneous tissue that represents between 30 and 38% of the human body mass and has important functions in the organism, such as maintaining posture, locomotor impulse, or pulmonary ventilation. The genesis of skeletal muscle during embryonic development is a process controlled by an elaborate regulatory network combining the interplay of extrinsic and intrinsic regulatory mechanisms that transform myogenic precursor cells into functional muscle fibers through a finely tuned differentiation program...
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/28507986/more-than-just-a-simple-cardiac-envelope-cellular-contributions-of-the-epicardium
#7
REVIEW
Angel Dueñas, Amelia E Aranega, Diego Franco
The adult pumping heart is formed by distinct tissue layers. From inside to outside, the heart is composed by an internal endothelial layer, dubbed the endocardium, a thick myocardial component which supports the pumping capacity of the heart and exteriorly covered by a thin mesothelial layer named the epicardium. Cardiac insults such as coronary artery obstruction lead to ischemia and thus to an irreversible damage of the myocardial layer, provoking in many cases heart failure and death. Thus, searching for new pathways to regenerate the myocardium is an urgent biomedical need...
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/28507985/control-of-neuronal-migration-and-aggregation-by-reelin-signaling-in-the-developing-cerebral-cortex
#8
REVIEW
Yuki Hirota, Kazunori Nakajima
The mammalian cerebral neocortex has a well-organized laminar structure, achieved by the highly coordinated control of neuronal migration. During cortical development, excitatory neurons born near the lateral ventricle migrate radially to reach their final positions to form the cortical plate. During this process, dynamic changes are observed in the morphologies and migration modes, including multipolar migration, locomotion, and terminal translocation, of the newborn neurons. Disruption of these migration processes can result in neuronal disorders such as lissencephaly and periventricular heterotopia...
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/28491867/metabolic-reprogramming-in-glioma
#9
REVIEW
Marie Strickland, Elizabeth A Stoll
Many cancers have long been thought to primarily metabolize glucose for energy production-a phenomenon known as the Warburg Effect, after the classic studies of Otto Warburg in the early twentieth century. Yet cancer cells also utilize other substrates, such as amino acids and fatty acids, to produce raw materials for cellular maintenance and energetic currency to accomplish cellular tasks. The contribution of these substrates is increasingly appreciated in the context of glioma, the most common form of malignant brain tumor...
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/28491866/pulmonary-extracellular-vesicles-as-mediators-of-local-and-systemic-inflammation
#10
REVIEW
Casper J E Wahlund, Anders Eklund, Johan Grunewald, Susanne Gabrielsson
Cells of the airways are constantly exposed to environmental hazards including cigarette smoke, irritants, pathogens, and mechanical insults. Maintaining barrier integrity is vital, and mounting responses to threats depends on intercellular communication. Extracellular vesicles (EVs), including exosomes and microvesicles, are major signal mediators between cells, shuttling cargo in health and disease. Depending on the state of the originating cells, EVs are capable of inducing proinflammatory effects including antigen presentation, cellular migration, apoptosis induction, and inflammatory cytokine release...
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/28470001/mtdna-metastasis-and-the-mitochondrial-unfolded-protein-response-upr-mt
#11
REVIEW
Timothy C Kenny, Doris Germain
While several studies have confirmed a link between mitochondrial DNA (mtDNA) mutations and cancer cell metastasis, much debate remains regarding the nature of the alternations in mtDNA leading to this effect. Meanwhile, the mitochondrial unfolded protein response (UPR(mt)) has gained much attention in recent years, with most studies of this pathway focusing on its role in aging. However, the UPR(mt) has also been studied in the context of cancer. More recent work suggests that rather than a single mutation or alternation, specific combinatorial mtDNA landscapes able to activate the UPR(mt) may be those that are selected by metastatic cells, while mtDNA landscapes unable to activate the UPR(mt) do not...
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/28443281/myc-and-ampk-save-energy-or-die
#12
REVIEW
Heidi M Haikala, Johanna M Anttila, Juha Klefström
MYC sustains non-stop proliferation by altering metabolic machinery to support growth of cell mass. As part of the metabolic transformation MYC promotes lipid, nucleotide and protein synthesis by hijacking citric acid cycle to serve biosynthetic processes, which simultaneously exhausts ATP production. This leads to the activation of cellular energy sensing protein, AMP-activated protein kinase (AMPK). Cells with normal growth control can stop cell proliferation machinery to replenish ATP reservoirs whereas MYC prevents such break by blocking the cell cycle exit...
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/28443280/in-vivo-reprogramming-of-cancer-metabolism-by-myc
#13
REVIEW
Roman Camarda, Jeremy Williams, Andrei Goga
The past few decades have welcomed tremendous advancements toward understanding the functional significance of altered metabolism during tumorigenesis. However, many conclusions drawn from studies of cancer cells in a dish (i.e., in vitro) have been put into question as multiple lines of evidence have demonstrated that the metabolism of cells can differ significantly from that of primary tumors (in vivo). This realization, along with the need to identify tissue-specific vulnerabilities of driver oncogenes, has led to an increased focus on oncogene-dependent metabolic programming in vivo...
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/28428954/uncovering-the-roles-of-septins-in-cilia
#14
REVIEW
Oliva Palander, Maha El-Zeiry, William S Trimble
Septins are a family of GTP-binding proteins that associate with cellular membranes and the cytoskeleton. Their ability to polymerize into filamentous structures permits them to serve as diffusion barriers for membrane proteins and as multi-molecular scaffolds that recruit components of signaling pathways. At the cellular level, septins contribute to the regulation of numerous processes, including cytokinesis, cell polarity, cell migration, and many others. In this review, we discuss emerging evidence for roles of mammalian septins in the biogenesis and function of flagella and cilia, and how this may impact human diseases such as ciliopathies...
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/28428953/tetraspanins-function-as-regulators-of-cellular-signaling
#15
REVIEW
Christina M Termini, Jennifer M Gillette
Tetraspanins are molecular scaffolds that distribute proteins into highly organized microdomains consisting of adhesion, signaling, and adaptor proteins. Many reports have identified interactions between tetraspanins and signaling molecules, finding unique downstream cellular consequences. In this review, we will explore these interactions as well as the specific cellular responses to signal activation, focusing on tetraspanin regulation of adhesion-mediated (integrins/FAK), receptor-mediated (EGFR, TNF-α, c-Met, c-Kit), and intracellular signaling (PKC, PI4K, β-catenin)...
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/28424773/septins-focus-cellular-growth-for-host-infection-by-pathogenic-fungi
#16
REVIEW
Michelle Momany, Nicholas J Talbot
One of the key challenges faced by microbial pathogens is invasion of host tissue. Fungal pathogens adopt a number of distinct strategies to overcome host cell defenses, including the development of specialized infection structures, the secretion of proteins that manipulate host responses or cellular organization, and the ability to facilitate their own uptake by phagocytic mechanisms. Key to many of these adaptations is the considerable morphogenetic plasticity displayed by pathogenic species. Fungal pathogens can, for example, shift their growth habit between non-polarized spores, or yeast-like cells, and highly polarized hyphal filaments...
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/28424772/putting-cells-into-context
#17
Sigmar Stricker, Petra Knaus, Hans-Georg Simon
No abstract text is available yet for this article.
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/28424771/ptk7-faces-the-wnt-in-development-and-disease
#18
REVIEW
Hanna Berger, Andreas Wodarz, Annette Borchers
PTK7 (protein tyrosine kinase 7) is an evolutionarily conserved transmembrane receptor regulating various processes in embryonic development and tissue homeostasis. On a cellular level PTK7 affects the establishment of cell polarity, the regulation of cell movement and migration as well as cell invasion. The PTK7 receptor has been shown to interact with ligands, co-receptors, and intracellular transducers of Wnt signaling pathways, pointing to a function in the fine-tuning of the Wnt signaling network. Here we will review recent findings implicating PTK7 at the crossroads of Wnt signaling pathways in development and disease...
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/28421183/organ-to-organ-communication-a-drosophila-gastrointestinal-tract-perspective
#19
REVIEW
Qiang Liu, Li Hua Jin
The long-term maintenance of an organism's homeostasis and health relies on the accurate regulation of organ-organ communication. Recently, there has been growing interest in using the Drosophila gastrointestinal tract to elucidate the regulatory programs that underlie the complex interactions between organs. Data obtained in this field have dramatically improved our understanding of how organ-organ communication contributes to the regulation of various aspects of the intestine, including its metabolic and physiological status...
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/28421182/tgf-%C3%AE-1-pretreatment-improves-the-function-of-mesenchymal-stem-cells-in-the-wound-bed
#20
Deepraj Ghosh, Daniel J McGrail, Michelle R Dawson
The wound healing process initiates after injury to a tissue and involves a series of orchestrated events to minimize the invasion of foreign matters such as bacteria and efficiently regenerate the damaged tissue. A variety of cells must be recruited to the tissue during wound healing. However, this process is severely disrupted in patients suffering from chronic illness, including diabetes, leading to impaired healing or non-healing wounds. Current avenues of treatment include negative-pressure therapy, wound debridement, growth factor replacement, and cell-based therapies...
2017: Frontiers in Cell and Developmental Biology
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