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https://www.readbyqxmd.com/read/29895828/bone-conditioned-medium-contributes-to-initiation-and-progression-of-osteogenesis-by-exhibiting-synergistic-tgf-%C3%AE-1-bmp-2-activity
#1
Maria B Asparuhova, Jordi Caballé-Serrano, Daniel Buser, Vivianne Chappuis
Guided bone regeneration (GBR) often utilizes a combination of autologous bone grafts, deproteinized bovine bone mineral (DBBM), and collagen membranes. DBBM and collagen membranes pre-coated with bone-conditioned medium (BCM) extracted from locally harvested autologous bone chips have shown great regenerative potential in GBR. However, the underlying molecular mechanism remains largely unknown. Here, we investigated the composition of BCM and its activity on the osteogenic potential of mesenchymal stromal cells...
June 12, 2018: International Journal of Oral Science
https://www.readbyqxmd.com/read/29885529/rna-interfering-molecule-delivery-from-in-situ-forming-biodegradable-hydrogels-for-enhancement-of-bone-formation-in-rat-calvarial-bone-defects
#2
Minh K Nguyen, Oju Jeon, Phuong N Dang, Cong T Huynh, Davood Varghai, Hooman Riazi, Alexandra McMillan, Samuel Herberg, Eben Alsberg
RNA interference (RNAi) may be an effective and valuable tool for promoting the growth of functional tissue, as short interfering RNA (siRNA) and microRNA (miRNA) can block the expression of genes that have negative effects on tissue regeneration. Our group has recently reported that the localized and sustained presentation of siRNA against noggin (siNoggin) and miRNA-20a from in situ forming poly(ethylene glycol) (PEG) hydrogels enhanced osteogenic differentiation of encapsulated human bone marrow-derived mesenchymal stem cells (hMSCs)...
June 6, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29879471/trapidil-induces-osteogenesis-by-upregulating-the-signaling-of-bone-morphogenetic-proteins
#3
Bongjun Kim, Jong-Ho Lee, Won Jong Jin, Hong-Hee Kim, Hyunil Ha, Zang Hee Lee
Platelet-derived growth factor receptor (PDGFR) signaling has been shown to inhibit osteogenesis. However, therapeutic efficacy of inhibiting PDGF signaling to bone regeneration in vivo and the specific mechanisms by which PDGFR signaling inhibits osteogenic differentiation remain unclear. In the present study, we examined the osteogenic effect of inhibiting PDGFR using trapidil, a PDGFR antagonist, in vivo and in vitro, and evaluated its mechanisms. A rat calvarial defect model was analyzed by micro-computed tomography and histology to determine the pro-osteogenic effect of trapidil in vivo...
June 4, 2018: Cellular Signalling
https://www.readbyqxmd.com/read/29789443/low-intensity-pulsed-ultrasound-stimulation-facilitates-in-vitro-osteogenic-differentiation-of-human-adipose-derived-stem-cells-via-up-regulation-of-heat-shock-protein-hsp-70-hsp90-and-bone-morphogenetic-protein-bmp-signaling-pathway
#4
Zhonglei Zhang, Yalin Ma, Shaowen Guo, Yi He, Gang Bai, Wenjun Zhang
Low-intensity pulsed ultrasound (LIPUS) has positive effects on osteogenic differentiation. However, the effect of LIPUS on osteogenic differentiation of human adipose-derived stem cells (hASCs) is unclear. In the present study, we investigated whether LIPUS could promote the proliferation and osteogenic differentiation of hASCs. hASCs were isolated and osteogenically induced with LIPUS stimulation at 20 and 30 mW cm-2 for 30 min day-1 Cell proliferation and osteogenic differentiation potential of hASCs were respectively analyzed by cell counting kit-8 assay, Alizarin Red S staining, real-time polymerase chain reaction, and Western blotting...
May 29, 2018: Bioscience Reports
https://www.readbyqxmd.com/read/29771958/cooperation-of-bmp-and-ihh-signaling-in-interdigital-cell-fate-determination
#5
Arunima Murgai, Sara Altmeyer, Stephanie Wiegand, Przemko Tylzanowski, Sigmar Stricker
The elaborate anatomy of hands and feet is shaped by coordinated formation of digits and regression of the interdigital mesenchyme (IM). A failure of this process causes persistence of interdigital webbing and consequently cutaneous syndactyly. Bone morphogenetic proteins (BMPs) are key inductive factors for interdigital cell death (ICD) in vivo. NOGGIN (NOG) is a major BMP antagonist that can interfere with BMP-induced ICD when applied exogenously, but its in vivo role in this process is unknown. We investigated the physiological role of NOG in ICD and found that Noggin null mice display cutaneous syndactyly and impaired interdigital mesenchyme specification...
2018: PloS One
https://www.readbyqxmd.com/read/29767257/bmp%C3%A2-6-protects-retinal-pigment-epithelial-cells-from-oxidative-stress%C3%A2-induced-injury-by-inhibiting-the-mapk-signaling-pathways
#6
Li Chen, Ming Liu, Yan Luan, Yingfei Liu, Zhichao Zhang, Bo Ma, Xuan Liu, Yong Liu
Worldwide, neovascular age‑related macular degeneration (nAMD) is one of the most common causes of blindness in the elderly. In particular, degeneration of retinal pigment epithelial (RPE) cells represents the main pathological process in the development of nAMD, and oxidative stress serves a major role. The present study aimed to investigate the association between bone morphogenetic protein 6 (BMP‑6) and nAMD. BMP‑6 concentration was significantly reduced in patients with wet nAMD compared with in the control group...
May 14, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29767241/transcriptome-sequencing-analysis-reveals-the-effect-of-combinative-treatment-with-low%C3%A2-intensity-pulsed-ultrasound-and-magnesium-ions-on-hfob1-19-human-osteoblast-cells
#7
Haiyue Zu, Xueting Yi, Dewei Zhao
Biodegradable magnesium (Mg) materials are considered ideal as osteosynthesis implants. However, clinical application has proven complex. This is primarily associated with the issue of reducing the extent of implant degradation to a range acceptable for the human body, while simultaneously enhancing osteogenesis or osteoinduction. In the present study, a combination of Mg ions and low‑intensity pulsed ultrasound (LIPUS) treatment was applied in hFOB 1.19 human osteoblast cells as a potential strategy to resolve this issue...
May 11, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29754876/bone-morphogenetic-protein-4-antagonizes-hair-cell-regeneration-in-the-avian-auditory-epithelium
#8
Rebecca M Lewis, Jesse J Keller, Liangcai Wan, Jennifer S Stone
Permanent hearing loss is often a result of damage to cochlear hair cells, which mammals are unable to regenerate. Non-mammalian vertebrates such as birds replace damaged hair cells and restore hearing function, but mechanisms controlling regeneration are not understood. The secreted protein bone morphogenetic protein 4 (BMP4) regulates inner ear morphogenesis and hair cell development. To investigate mechanisms controlling hair cell regeneration in birds, we examined expression and function of BMP4 in the auditory epithelia (basilar papillae) of chickens of either sex after hair cell destruction by ototoxic antibiotics...
May 2, 2018: Hearing Research
https://www.readbyqxmd.com/read/29752282/niche-mediated-bmp-smad-signaling-regulates-lung-alveolar-stem-cell-proliferation-and-differentiation
#9
Mei-I Chung, Melissa Bujnis, Christina E Barkauskas, Yoshihiko Kobayashi, Brigid L M Hogan
The bone morphogenetic protein (BMP) signaling pathway, including antagonists, functions in lung development and regeneration of tracheal epithelium from basal stem cells. Here, we explore its role in the alveolar region, where type 2 epithelial cells (AT2s) and Pdgfrα+ type 2-associated stromal cells (TASCs) are components of the stem cell niche. We use organoids and in vivo alveolar regrowth after pneumonectomy (PNX) - a process that requires proliferation of AT2s and differentiation into type 1 cells (AT1s)...
May 11, 2018: Development
https://www.readbyqxmd.com/read/29716947/embryonic-bone-morphogenetic-protein-and-nodal-induce-invasion-in-melanocytes-and-melanoma-cells
#10
Tobias Sinnberg, Heike Niessner, Mitchell P Levesque, Christoph Dettweiler, Claus Garbe, Christian Busch
Despite recent progress in melanoma therapy via inhibition of activated oncogenes or immune stimulation, most stage IV melanoma patients still have limited survival times. Existing therapeutic approaches eventually fail to prevent further invasion and metastasis, which is driven by a morphological process termed epithelial-mesenchymal transition (EMT). We previously demonstrated that inhibition of EMT in melanoma cells via antagonizing the bone morphogenetic protein (BMP)-pathway abrogated EMT and neural crest migration of melanoma cells in chick embryos...
June 7, 2018: Biology Open
https://www.readbyqxmd.com/read/29667005/the-bmp-2-mutant-l51p-a-bmp-receptor-ia-binding-deficient-inhibitor-of-noggin
#11
REVIEW
Hany Mohamed Khattab, Satoshi Kubota, Masaharu Takigawa, Takuo Kuboki, Walter Sebald
The antagonist-specific regulation in tissue engineering constitutes important attempts to achieve an improved and rapid bone regeneration by controlling the natural biological response of the natural body growth factors. L51P is molecularly engineered bone morphogentic protein-2 (BMP-2) variant with a substitution of the 51st leucine with a proline residue. L51P is deficient in BMP receptor binding, but maintains its structure and affinity for inhibitory proteins such as noggin, chordin, and gremlin. These modifications convert the BMP-2 variant L51P into a receptor-inactive inhibitor of BMP antagonists...
April 17, 2018: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/29587276/improving-bone-regeneration-using-chordin-sirna-delivered-by-ph-responsive-and-non-toxic-polyspermine-imidazole-4-5-imine
#12
Chuandong Wang, Fei Xiao, Yaokai Gan, Weien Yuan, Zhanjing Zhai, Tuo Jin, Xiaodong Chen, Xiaoling Zhang
BACKGROUND/AIMS: Bone nonunion remains a challenge for orthopaedists. The technological advancements that have been made in precisely silencing target genes have provided promising methods to address this challenge. METHODS: We detected the expression levels of the bone morphogenetic protein (BMP) inhibitors Chordin, Gremlin and Noggin using realtime PCR in bone mesenchymal stem cells (BMSCs) isolated from patients with normal fracture healing and those with bone nonunion...
2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29577917/msx2-supports-epidermal-competency-during-wound-induced-hair-follicle-neogenesis
#13
Michael W Hughes, Ting-Xin Jiang, Maksim V Plikus, Christian Fernando Guerrero-Juarez, Chein-Hong Lin, Christopher Schafer, Robert Maxson, Randall B Widelitz, Cheng-Ming Chuong
Cutaneous wounds in adult mammals typically heal by scarring. However, large full-thickness wounds undergo wound-induced hair follicle neogenesis (WIHN), a novel form of regeneration. Here, we demonstrate WIHN requires transient expression of epidermal Msx2 in two phases; the wound margin early and the wound center late. Msx2 expression is present in the migrating epithelium during early wound healing, and then presents in the epithelium and mesenchyme later in the wound center. WIHN is abrogated in germline and epithelial-specific Msx2 mutant mice...
March 22, 2018: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/29576501/intrastriatal-transplantation-of-stem-cells-from-human-exfoliated-deciduous-teeth-reduces-motor-defects-in-parkinsonian-rats
#14
Nan Zhang, Xianjie Lu, Shichao Wu, Xueli Li, Jing Duan, Chao Chen, Wei Wang, Hao Song, Jiabei Tong, Sen Li, Yanming Liu, Xinjiang Kang, Xuexiang Wang, Fabin Han
BACKGROUND: This study explored the neural differentiation and therapeutic effects of stem cells from human exfoliated deciduous teeth (SHED) in a rat model of Parkinson's disease (PD). METHODS: The SHED were isolated from fresh dental pulp and were induced to differentiate to neurons and dopamine neurons by inhibiting similar mothers against dpp (SMAD) signaling with Noggin and increase conversion of dopamine neurons from SHED with CHIR99021, Sonic Hedgehog (SHH) and FGF8 in vitro...
May 2018: Cytotherapy
https://www.readbyqxmd.com/read/29572187/joggin-the-noggin-towards-a-physiological-understanding-of-exercise-induced-cognitive-benefits
#15
REVIEW
Nikolas J Stimpson, Glen Davison, Amir-Homayoun Javadi
This narrative review examines literature pertaining to possible physiological explanations for observed cognitive benefits stemming from improvements to cardiovascular fitness following chronic aerobic exercise. Studies regarding exercise and cardiovascular fitness, angiogenesis, neuroinflammation in relation to IGF-1 signalling, regulation of neurotrophins, neurogenesis and plasticity, cognitive training, are briefly described. We propose that current evidence points towards a mechanism by which cardiovascular fitness improvements act to promote long-term angiogenesis and cerebral circulation...
May 2018: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/29564941/gene-expression-and-localization-of-lamtor3-in-the-skin-cells-of-liaoning-cashmere-goats
#16
Mei Jin, Ming Cao, Mingxing Chu, Jing'ai Piao, Xu Guo, Fengqin Zhao, Jun Piao
Liaoning cashmere goats are the most precious genetic resources in China. The function of LAMTOR3 [late endosomal/lysosomal adaptor, mitogen-activated protein kinase (MAPK), and mammalian target of rapamycin activator 3/MAPK scaffold protein 1] gene is expressed in the skin of Liaoning cashmere goats. In situ hybridization (ISH) found that LAMTOR3 is expressed in the inner root sheath (IRS) of hair follicles. During the anagen or catagen phase, the expression of LAMTOR3 is higher in secondary hair follicles than in primary hair follicles...
March 22, 2018: Animal Biotechnology
https://www.readbyqxmd.com/read/29563538/ucma-grp-inhibits-phosphate-induced-vascular-smooth-muscle-cell-calcification-via-smad-dependent-bmp-signalling
#17
Brecht A Willems, Malgorzata Furmanik, Marjolein M J Caron, Martijn L L Chatrou, Dennis H M Kusters, Tim J M Welting, Michael Stock, Marta S Rafael, Carla S B Viegas, Dina C Simes, Cees Vermeer, Chris P M Reutelingsperger, Leon J Schurgers
Vascular calcification (VC) is the process of deposition of calcium phosphate crystals in the blood vessel wall, with a central role for vascular smooth muscle cells (VSMCs). VC is highly prevalent in chronic kidney disease (CKD) patients and thought, in part, to be induced by phosphate imbalance. The molecular mechanisms that regulate VC are not fully known. Here we propose a novel role for the mineralisation regulator Ucma/GRP (Upper zone of growth plate and Cartilage Matrix Associated protein/Gla Rich Protein) in phosphate-induced VSMC calcification...
March 21, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29559302/myo-nog-cells-are-present-in-the-ciliary-processes-on-the-zonule-of-zinn-and-posterior-capsule-of-the-lens-following-cataract-surgery
#18
Jacquelyn Gerhart, Colleen Withers, Colby Gerhart, Liliana Werner, Nick Mamalis, Arturo Bravo-Nuevo, Victoria Scheinfeld, Paul FitzGerald, Robert Getts, Mindy George-Weinstein
Myo/Nog cells, named for their expression of MyoD and noggin, enter the eye during early stages of embryonic development. Their release of noggin is critical for normal morphogenesis of the lens and retina. Myo/Nog cells are also present in adult eyes. Single nucleated skeletal muscle cells designated as myofibroblasts arise from Myo/Nog cells in cultures of lens tissue. In this report we document the presence of Myo/Nog cells in the lens, ciliary body and on the zonule of Zinn in mice, rabbits and humans. Myo/Nog cells were rare in all three structures...
June 2018: Experimental Eye Research
https://www.readbyqxmd.com/read/29545164/interaction-between-orexin-a-and-bone-morphogenetic-protein-system-on-progesterone-biosynthesis-by-rat-granulosa-cells
#19
Shiho Fujita, Toru Hasegawa, Yuki Nishiyama, Satoshi Fujisawa, Yasuhiro Nakano, Takahiro Nada, Nahoko Iwata, Yasuhiko Kamada, Hisashi Masuyama, Fumio Otsuka
The involvement of orexins in reproductive function has been gradually uncovered. However, the functional role of orexins in ovarian steroidogenesis remains unclear. In the present study, we investigated the effects of orexin A on ovarian steroidogenesis by using rat primary granulosa cells that express both OX1 and OX2 receptors for orexins. Treatment with orexin A enhanced progesterone, but not estradiol, biosynthesis induced by FSH, whereas it did not affect basal levels of progesterone or estradiol. In accordance with the effects on steroidogenesis, orexin A increased the mRNA levels of progesterogenic enzymes, including StAR, P450scc and 3βHSD, but not P450arom, and cellular cAMP synthesis induced by FSH...
March 12, 2018: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29509914/culture-and-characterization-of-chicken-small-intestinal-crypts
#20
J Li, J Li, S Y Zhang, R X Li, X Lin, Y L Mi, C Q Zhang
The integrity and normal function of the small intestinal epithelium depends critically on the rapid renewal of epithelial cells from basal stem cells. The intensive proliferation that fuels this self-renewal process is confined to the intestinal crypts. Establishment of suitable protocols for crypt isolation and culture is pivotal for the studies of intestinal self-renewal mechanisms. In this study, chicken small intestinal crypts were isolated, purified, and further cultured in a Matrigel 3-D culture system...
May 1, 2018: Poultry Science
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