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https://www.readbyqxmd.com/read/29352451/involvement-of-tsukushi-in-diverse-developmental-processes
#1
Shah Adil Ishtiyaq Ahmad, Mohammad Badrul Anam, Naofumi Ito, Kunimasa Ohta
Tsukushi (TSK) is a small signaling molecule which takes part in different developmental processes of multiple vertebrate organisms. The diverse activity of TSK depends on its ability to bind various intermediate molecules from different major signaling pathways. Interactions of TSK with BMP, FGF, TGF-β and Wnt pathways have already been confirmed. In this review, we will introduce the latest information regarding the involvement of TSK in developmental events. We suggest a fine tuning role for TSK in multiple signaling cascades...
January 19, 2018: Journal of Cell Communication and Signaling
https://www.readbyqxmd.com/read/29352019/opposing-roles-of-tgf%C3%AE-and-bmp-signaling-in-prostate-cancer-development
#2
Xin Lu, Eun-Jung Jin, Xi Cheng, Shan Feng, Xiaoying Shang, Pingna Deng, Shan Jiang, Qing Chang, Sharif Rahmy, Seema Chaudhary, Xuemin Lu, Ren Zhao, Y Alan Wang, Ronald A DePinho
SMAD4 constrains progression of Pten-null prostate cancer and serves as a common downstream node of transforming growth factor β (TGFβ) and bone morphogenetic protein (BMP) pathways. Here, we dissected the roles of TGFβ receptor II (TGFBR2) and BMP receptor II (BMPR2) using a Pten-null prostate cancer model. These studies demonstrated that the molecular actions of TGFBR2 result in both SMAD4-dependent constraint of proliferation and SMAD4-independent activation of apoptosis. In contrast, BMPR2 deletion extended survival relative to Pten deletion alone, establishing its promoting role in BMP6-driven prostate cancer progression...
December 1, 2017: Genes & Development
https://www.readbyqxmd.com/read/29351213/cyclin-b3-deficiency-impairs-germline-stem-cell-maintenance-and-its-overexpression-delays-cystoblast-differentiation-in-drosophila-ovary
#3
Dongsheng Chen, Lijuan Zhou, Fuling Sun, Mingzhong Sun, Xiaoqian Tao
It is well known that cyclinB3 (cycB3) plays a key role in the control of cell cycle progression. However, whether cycB3 is involved in stem cell fate determination remains unknown. The Drosophila ovary provides an exclusive model for studying the intrinsic and extrinsic factors that modulate the fate of germline stem cells (GSCs). Here, using this model, we show that DrosophilacycB3 plays a new role in controlling the fate of germline stem cells (GSC). Results from cycB3 genetic analyses demonstrate that cycB3 is intrinsically required for GSC maintenance...
January 19, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29350886/the-cell-biology-and-molecular-genetics-of-m%C3%A3-llerian-duct-development
#4
REVIEW
Zahida Yesmin Roly, Brendan Backhouse, Andrew Cutting, Tiong Yang Tan, Andrew H Sinclair, Katie L Ayers, Andrew T Major, Craig A Smith
The Müllerian ducts are part of the embryonic urogenital system. They give rise to mature structures that serve a critical function in the transport and development of the oocyte and/or embryo. In most vertebrates, both sexes initially develop Müllerian ducts during embryogenesis, but they regress in males under the influence of testis-derived Anti-Müllerian Hormone (AMH). A number of regulatory factors have been shown to be essential for proper duct development, including Bmp and Wnt signaling molecules, together with homeodomain transcription factors such as PAX2 and LIM1...
January 19, 2018: Wiley Interdisciplinary Reviews. Developmental Biology
https://www.readbyqxmd.com/read/29341308/stiffness-regulates-the-proliferation-and-osteogenic-odontogenic-differentiation-of-human-dental-pulp-stem-cells-via-the-wnt-signalling-pathway
#5
Nanxin Liu, Mi Zhou, Qi Zhang, Tao Zhang, Taoran Tian, Quanquan Ma, Changyue Xue, Shiyu Lin, Xiaoxiao Cai
OBJECTIVES: Researches showed that stiffness of the extracellular matrix can affect the differentiation of many stem cells. Dental pulp stem cells (DPSCs) are a promising type of adult stem cell. However, we know little about whether and how the behaviour of DPSCs is influenced by stiffness. MATERIALS AND METHODS: We carried out a study that cultured DPSCs on tunable elasticity polydimethylsiloxane substrates to investigate the influence on morphology, proliferation, osteogenic/odontogenic differentiation and its possible mechanism...
January 17, 2018: Cell Proliferation
https://www.readbyqxmd.com/read/29340375/enhancement-of-bmp-2-mediated-angiogenesis-and-osteogenesis-by-2-n-6-o-sulfated-chitosan-in-bone-regeneration
#6
Yuanzhong Pan, Jie Chen, Yuanman Yu, Kai Dai, Jing Wang, Changsheng Liu
Sulfated polysaccharides are attractive semi-synthesized materials that can be used as a mimic of heparan sulfate to modulate the protein activity and other physiological processes. In this study, we employed sulfated chitosan to enhance the angiogenic capacity of bone morphogenic protein-2 (BMP-2). Bone marrow stromal cells (BMSCs) cultured in a combination of BMP-2 and 2-N,6-O-sulfated chitosan (SCS) group exhibited a higher cell viability and sprouting ability. The cells also secreted more VEGF and NO. The expression patterns of angiogenic and osteogenic genes were analyzed, and VEGFR2 signaling was found to play a role in the enhancing effect of SCS...
January 17, 2018: Biomaterials Science
https://www.readbyqxmd.com/read/29339534/inactivating-mutations-in-drosha-mediate-vascular-abnormalities-similar-to-hereditary-hemorrhagic-telangiectasia
#7
Xuan Jiang, Whitney L Wooderchak-Donahue, Jamie McDonald, Prajakta Ghatpande, Mai Baalbaki, Melissa Sandoval, Daniel Hart, Hilary Clay, Shaun Coughlin, Giorgio Lagna, Pinar Bayrak-Toydemir, Akiko Hata
The transforming growth factor-β (TGF-β) and bone morphogenetic protein (BMP) family of cytokines critically regulates vascular morphogenesis and homeostasis. Impairment of TGF-β or BMP signaling leads to heritable vascular disorders, including hereditary hemorrhagic telangiectasia (HHT). Drosha, a key enzyme for microRNA (miRNA) biogenesis, also regulates the TGF-β and BMP pathway through interaction with Smads and their joint control of gene expression through miRNAs. We report that mice lacking Drosha in the vascular endothelium developed a vascular phenotype resembling HHT that included dilated and disorganized vasculature, arteriovenous fistulae, and hemorrhages...
January 16, 2018: Science Signaling
https://www.readbyqxmd.com/read/29339095/patterning-the-gastrointestinal-epithelium-to-confer-regional-specific-functions
#8
REVIEW
Cayla A Thompson, Ann DeLaForest, Michele A Battle
The gastrointestinal (GI) tract, in simplest terms, can be described as an epithelial-lined muscular tube extending along the cephalocaudal axis from the oral cavity to the anus. Although the general architecture of the GI tract organs is conserved from end to end, the presence of different epithelial tissue structures and unique epithelial cell types within each organ enables each to perform the distinct digestive functions required for efficient nutrient assimilation. Spatiotemporal regulation of signaling pathways and downstream transcription factors controls GI epithelial morphogenesis during development to confer essential regional-specific epithelial structures and functions...
January 12, 2018: Developmental Biology
https://www.readbyqxmd.com/read/29337188/abrogation-of-fam20c-altered-cell-behaviors-and-bmp-signaling-of-immortalized-dental-mesenchymal-cells
#9
Chao Liu, Nan Zhou, Yu Wang, Hua Zhang, Priyam Jani, Xiaofang Wang, Yongbo Lu, Nan Li, Jing Xiao, Chunlin Qin
FAM20C mutations compromise the mineralization of skeleton and tooth in both human and mouse. Putatively, the mineralization disorder is attributed to the elevated fibroblast growth factor 23 (FGF23), which reduced the serum phosphorus by suppressing the reabsorption of phosphorus in kidney. Besides the regulation on systemic phosphorus homeostasis, FAM20C was also implicated to regulate cell behaviors and gene expression through a cell-autonomous manner. To identify the primary effects of Fam20c on dental mesenchymal cells, mouse Fam20c-deficient dental mesenchymal cells were generated by removing the floxed alleles from the immortalized mouse Fam20cf/f dental mesenchymal cells with Cre-expressing lentivirus...
January 11, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29337183/temporal-layering-of-signaling-effectors-drives-chromatin-remodeling-during-hair-follicle-stem-cell-lineage-progression
#10
Rene C Adam, Hanseul Yang, Yejing Ge, Wen-Hui Lien, Ping Wang, Yilin Zhao, Lisa Polak, John Levorse, Sanjeethan C Baksh, Deyou Zheng, Elaine Fuchs
Tissue regeneration relies on resident stem cells (SCs), whose activity and lineage choices are influenced by the microenvironment. Exploiting the synchronized, cyclical bouts of tissue regeneration in hair follicles (HFs), we investigate how microenvironment dynamics shape the emergence of stem cell lineages. Employing epigenetic and ChIP-seq profiling, we uncover how signal-dependent transcription factors couple spatiotemporal cues to chromatin dynamics, thereby choreographing stem cell lineages. Using enhancer-driven reporters, mutagenesis, and genetics, we show that simultaneous BMP-inhibitory and WNT signals set the stage for lineage choices by establishing chromatin platforms permissive for diversification...
January 9, 2018: Cell Stem Cell
https://www.readbyqxmd.com/read/29337130/an-organizing-role-for-the-tgf-%C3%AE-signaling-pathway-in-axes-formation-of-the-annelid-capitella-teleta
#11
Alexis R Lanza, Elaine C Seaver
Embryonic organizers are signaling centers that coordinate developmental events within an embryo. Localized to either an individual cell or group of cells, embryonic organizing activity induces the specification of other cells in the embryo and can influence formation of body axes. In the spiralian Capitella teleta, previous cell deletion studies have shown that organizing activity is localized to a single cell, 2d, and this cell induces the formation of the dorsal-ventral axis and bilateral symmetry. In this study, we attempt to identify the signaling pathway responsible for the organizing activity of 2d...
January 11, 2018: Developmental Biology
https://www.readbyqxmd.com/read/29336212/simulated-microgravity-impairs-cardiac-autonomic-neurogenesis-from-neural-crest-cells
#12
Konstantinos E Hatzistergos, Zhijie Jiang, Krystalenia Valasaki, Lauro M Takeuchi, Wayne Balkan, Preethi Atluri, Dieter Saur, Barbara Seidler, Nicholas Tsinoremas, Darcy DiFede, Joshua M Hare
Microgravity-induced alterations in the autonomic nervous system (ANS) contribute to derangements in both the mechanical and electrophysiologic function of the cardiovascular system, leading to severe symptoms in humans following space travel. Because the ANS forms embryonically from neural crest progenitors (NCs), we hypothesized that microgravity can impair NC derived cardiac structures. Accordingly, we conducted in vitro simulated microgravity experiments employing NC genetic lineage-tracing in mice with cKitCreERT2/+, Isl1nLacZ and Wnt1-Cre reporter alleles...
January 16, 2018: Stem Cells and Development
https://www.readbyqxmd.com/read/29332162/roles-of-irisin-in-the-linkage-from-muscle-to-bone-during-mechanical-unloading-in-mice
#13
Naoyuki Kawao, Akihiro Moritake, Kohei Tatsumi, Hiroshi Kaji
Mechanical unloading induces disuse muscle atrophy and bone loss, but the details in mechanism involved in those pathophysiological conditions are not fully understood. Interaction between muscle and bone has been recently noted. Here, we investigated the roles of humoral factors linking muscle to bone during mechanical unloading using mice with hindlimb unloading (HU) and sciatic neurectomy (SNX). HU and SNX reduced muscle volume surrounding the tibia, tissue weights of soleus and gastrocnemius muscle, and trabecular bone mineral density (BMD) in the tibia of mice...
January 13, 2018: Calcified Tissue International
https://www.readbyqxmd.com/read/29330921/four-and-a-half-domain-2-fhl2-scaffolding-protein-is-a-marker-of-connective-tissues-of-developing-digits-and-regulates-fibrogenic-differentiation-of-limb-mesodermal-progenitors
#14
C I Lorda-Diez, J A Montero, C Sanchez-Fernandez, J A Garcia-Porrero, J Chimal-Monroy, J M Hurle
FHL2 is a multifunctional scaffolding protein of well-known function regulating cell signaling cascades and gene transcription in cancer tissues. However, its function in embryonic systems is poorly characterized. Here, we show that Fhl2 is involved in the differentiation of connective tissues of developing limb autopod. We show that Fhl2 exhibits spatially restricted and temporally dynamic expression around the tendons of developing digits, interphalangeal joint capsules, and fibrous peridigital tissue. Immunolabeling analysis of the skeletal progenitors identified a predominant, but not exclusive, cytoplasmic distribution of FHL2 being associated with focal adhesions and actin cytoskeleton...
January 12, 2018: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29326173/transcriptional-regulator-zeb2-is-essential-for-bergmann-glia-development
#15
Li He, Kun Yu, Fanghui Lu, Jiajia Wang, Laiman N Wu, Chuntao Zhao, Qianmei Li, Xianyao Zhou, Hanmin Liu, Dezhi Mu, Mei Xin, Mengsheng Qiu, Q Richard Lu
Bergmann glia facilitate granule neuron migration during development and maintain the cerebellar organization and functional integrity. At present, molecular control of Bergmann glia specification from cerebellar radial glia is not fully understood. In this report, we show that Zeb2 (a.k.a. Sip1 or Zfhx1b), a Mowat-Wilson-syndrome-associated transcriptional regulator, is highly expressed in Bergmann glia, but hardly detectable in astrocytes in the cerebellum. The mice lacking Zeb2 in cerebellar radial glia exhibit severe deficits in Bergmann glia specification, and develop cerebellar cortical lamination dysgenesis and locomotion defects...
January 11, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29325369/-cd137-signaling-promotes-the-formation-of-plaque-calcification-via-inhibiting-the-fusion-of-autophagy-and-lysosomal-in-apo-e-mice
#16
X Y Li, R Chen, W Zhong, B Li, C Shao, Z Q Wang, J C Yan
Objective: To investigate whether CD137 signaling promoted the formation of atherosclerotic plaque calcification by inhibiting the fusion of autophagosome and lysosome. Methods: (1) In vivo, CD137 agonist antibody and anti-CD137 antibody were used to stimulate and inhibit the CD137 signaling, respectively. Fifteen Apo E(-/-) mice were randomly divided into three groups: control group (intraperitoneal injection of IgG2b 200 µg) , CD137 agonist group (intraperitoneal injection of CD137 agonist antibody 200 µg) , anti-CD137 group (pretreatment with 200 µg anti-CD137 antibody for 24 hours, then injection of CD137 agonist antibody) ...
December 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/29324800/hepcidin-deficiency-and-iron-deficiency-do-not-alter-tuberculosis-susceptibility-in-a-murine-m-tb-infection-model
#17
Rachel Harrington-Kandt, Elena Stylianou, Lucy A Eddowes, Pei Jin Lim, Lisa Stockdale, Nawamin Pinpathomrat, Naomi Bull, Janet Pasricha, Marta Ulaszewska, Yulia Beglov, Sophie Vaulont, Hal Drakesmith, Helen McShane
Tuberculosis (TB), caused by the macrophage-tropic pathogen Mycobacterium tuberculosis (M.tb) is a highly prevalent infectious disease. Since an immune correlate of protection or effective vaccine have yet to be found, continued research into host-pathogen interactions is important. Previous literature reports links between host iron status and disease outcome for many infections, including TB. For some extracellular bacteria, the iron regulatory hormone hepcidin is essential for protection against infection...
2018: PloS One
https://www.readbyqxmd.com/read/29324456/targeted-knockdown-of-bone-morphogenetic-protein-signaling-within-neural-progenitors-protects-the-brain-and-improves-motor-function-following-postnatal-hypoxia-ischemia
#18
Robert W Dettman, Derin Birch, Augusta Fernando, John A Kessler, Maria L V Dizon
Hypoxic-ischemic injury (HI) to the neonatal human brain results in myelin loss that, in some children, can manifest as cerebral palsy. Previously, we had found that neuronal overexpression of the bone morphogenic protein (BMP) inhibitor noggin during development increased oligodendroglia and improved motor function in an experimental model of HI utilizing unilateral common carotid artery ligation followed by hypoxia. As BMPs are known to negatively regulate oligodendroglial fate specification of neural stem cells and alter differentiation of committed oligodendroglia, BMP signaling is likely an important mechanism leading to myelin loss...
January 12, 2018: Developmental Neuroscience
https://www.readbyqxmd.com/read/29321139/bmp-smad-pathway-promotes-neurogenesis-of-midbrain-dopaminergic-neurons-in-vivo-and-in-human-induced-pluripotent-and-neural-stem-cells
#19
V M Jovanovic, A Salti, H Tilleman, K Zega, M M Jukic, H Zou, R H Friedel, N Prakash, S Blaess, F Edenhofer, C Brodski
The embryonic formation of midbrain dopaminergic (mDA) neurons in vivo provides critical guidelines for the in vitro differentiation of mDA neurons from stem cells, currently being developed for Parkinson's disease cell replacement therapy. Bone morphogenetic protein (BMP)/SMAD inhibition is routinely used during early steps of stem cell differentiation protocols, including for the generation of mDA neurons. However, the function of the BMP/SMAD pathway for in vivo specification of mammalian mDA neurons is virtually unknown...
January 10, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29318958/a-cell-engineered-small-intestinal-submucosa-based-bone-mimetic-construct-for-bone-regeneration
#20
Mei Li, Chi Zhang, Yuxing Mao, Yi Zhong, Jiyuan Zhao
Extracellular matrix (ECM)-ornamented biomaterials have attracted attention due to their high potential to improve the bio-functionality of original materials. It is thought that ECM with a bone mimetic microenvironment generated by the specific induction of osteoblasts would be more beneficial for bone regeneration than regular ECM. In this study, we developed an osteogenic and mineralized ECM construct (Os/M-ECM-SIS) under the guidance of osteoblasts on a small intestinal submucosa (SIS) scaffold co-treated with icariin and calcium...
January 10, 2018: Tissue Engineering. Part A
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