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https://www.readbyqxmd.com/read/29775452/the-effects-of-a-pulsed-electromagnetic-field-on-the-proliferation-and-osteogenic-differentiation-of-human-adipose-derived-stem-cells
#1
Yukun Yin, Ping Chen, Qiang Yu, Yan Peng, ZeHao Zhu, Jing Tian
BACKGROUND A low frequency pulsed electromagnetic field (PEMF) has been confirmed to play an important role in promoting the osteogenic differentiation of human bone marrow stem cells (BMSCs). Adipose-derived stem cells (ASCs) possess some attractive characteristics for clinical application compared to BMSCs, such as abundant stem cells from lipoaspirates, faster growth, less discomfort and morbidity during surgery. ASCs can become adipocytes, osteoblasts, chondrocytes, myocytes, neurocytes, and other cell types...
May 18, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29774117/investigation-of-tumor-tumor-interactions-in-a-double-human-cervical-carcinoma-xenograft-model-in-nude-mice
#2
Barbara Mertens, Tatiane Cristina de Araujo Nogueira, Dimitrios Topalis, Ruzena Stranska, Robert Snoeck, Graciela Andrei
Tumor-tumor distant interactions within one organism are of major clinical relevance determining clinical outcome. To investigate this poorly understood phenomenon, a double human cervical xenograft model in nude mice was developed. A first tumor was induced subcutaneously by injection of human papillomavirus positive cervical carcinoma cells into the mouse lower right flank and 3 weeks later, animals were challenged with the same tumor cell line injected subcutaneously into the upper left flank. These tumors had no direct physical contact and we found no systemic changes induced by the primary tumor affecting the growth of a secondary tumor...
April 24, 2018: Oncotarget
https://www.readbyqxmd.com/read/29773469/the-effect-of-the-deuterium-depleted-water-on-the-biological-activity-of-the-eukaryotic-cells
#3
A V Syroeshkin, N V Antipova, A V Zlatska, I A Zlatskiy, M D Skylska, T V Grebennikova, V V Goncharuk
Here we show the dependence of the unicellular biosensor S.ambigua lifespan on the water D/H isotopic composition. This dependence is bell-shaped with descents both in case of deficiency or excess of deuterium in water. The influence of the water D/H isotopic composition on the cell culture proliferative potential and colony forming efficiency in vitro was tested on the human dermal fibroblasts. We observed that the deuterium depleted water stimulates cell colony formation at the early passages. The dynamics of the cell doubling index in the deuterium depleted water-based growth medium showed higher proliferation potential compared to the water with normal isotopic composition...
May 14, 2018: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/29771943/cross-talk-between-human-airway-epithelial-cells-and-3t3-j2-feeder-cells-involves-partial-activation-of-human-met-by-murine-hgf
#4
Robert E Hynds, Kate H C Gowers, Ersilia Nigro, Colin R Butler, Paola Bonfanti, Adam Giangreco, Cecilia M Prêle, Sam M Janes
There is considerable interest in the ex vivo propagation of primary human basal epithelial stem/progenitor cells with a view to their use in drug development, toxicity testing and regenerative medicine. These cells can be expanded in co-culture with mitotically inactivated 3T3-J2 murine embryonic feeder cells but, similar to other epithelial cell culture systems employing 3T3-J2 cells, the aspects of cross-talk between 3T3-J2 cells and human airway basal cells that are critical for their expansion remain largely unknown...
2018: PloS One
https://www.readbyqxmd.com/read/29770592/particles-of-vaterite-a-metastable-caco-3-polymorph-exhibit-high-biocompatibility-for-human-osteoblasts-and-endothelial-cells-and-may-serve-as-a-biomaterial-for-rapid-bone-regeneration
#5
Romina Schröder, Laura Besch, Hannah Pohlit, Martin Panthöfer, Wilfried Roth, Holger Frey, Wolfgang Tremel, Ronald E Unger
We have previously described a promising alternative to conventional synthetic bone biomaterials using vaterite, a metastable CaCO3 polymorph, that increases the local Ca2+ concentration in vitro and leads to an over-saturation of phosphate, the primary bone mineral. This stimulates a natural bone-like mineralization in a short period of time. In this study, sterile and endotoxin-free vaterite particles were synthesized in a nearly quantitative yield. The 500-1000 nm vaterite particles did not exhibit any cytotoxic effects as measured by MTT, LDH or crystal violet assays on the human osteoblast cell line (MG-63) exposed to concentrations up to 500 μg/ml vaterite up to 72 hr...
May 16, 2018: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29769722/bystander-cd8-t-cells-are-abundant-and-phenotypically-distinct-in-human-tumour-infiltrates
#6
Yannick Simoni, Etienne Becht, Michael Fehlings, Chiew Yee Loh, Si-Lin Koo, Karen Wei Weng Teng, Joe Poh Sheng Yeong, Rahul Nahar, Tong Zhang, Hassen Kared, Kaibo Duan, Nicholas Ang, Michael Poidinger, Yin Yeng Lee, Anis Larbi, Alexis J Khng, Emile Tan, Cherylin Fu, Ronnie Mathew, Melissa Teo, Wan Teck Lim, Chee Keong Toh, Boon-Hean Ong, Tina Koh, Axel M Hillmer, Angela Takano, Tony Kiat Hon Lim, Eng Huat Tan, Weiwei Zhai, Daniel S W Tan, Iain Beehuat Tan, Evan W Newell
Various forms of immunotherapy, such as checkpoint blockade immunotherapy, are proving to be effective at restoring T cell-mediated immune responses that can lead to marked and sustained clinical responses, but only in some patients and cancer types1-4 . Patients and tumours may respond unpredictably to immunotherapy partly owing to heterogeneity of the immune composition and phenotypic profiles of tumour-infiltrating lymphocytes (TILs) within individual tumours and between patients5,6 . Although there is evidence that tumour-mutation-derived neoantigen-specific T cells play a role in tumour control2,4,7-10 , in most cases the antigen specificities of phenotypically diverse tumour-infiltrating T cells are largely unknown...
May 16, 2018: Nature
https://www.readbyqxmd.com/read/29769706/red-algal-extracts-from-plocamium-lyngbyanum-and-ceramium-secundatum-stimulate-osteogenic-activities-in-vitro-and-bone-growth-in-zebrafish-larvae
#7
Matthew A Carson, John Nelson, M Leonor Cancela, Vincent Laizé, Paulo J Gavaia, Margaret Rae, Svenja Heesch, Eugene Verzin, Christine Maggs, Brendan F Gilmore, Susan A Clarke
Through the current trend for bioprospecting, marine organisms - particularly algae - are becoming increasingly known for their osteogenic potential. Such organisms may provide novel treatment options for osteoporosis and other musculoskeletal conditions, helping to address their large healthcare burden and the limitations of current therapies. In this study, extracts from two red algae - Plocamium lyngbyanum and Ceramium secundatum - were tested in vitro and in vivo for their osteogenic potential. In vitro, the growth of human bone marrow stromal cells (hBMSCs) was significantly greater in the presence of the extracts, particularly with P...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29768523/extracellular-calcium-increases-fibroblast-growth-factor-2-gene-expression-via-extracellular-signal-regulated-kinase-1-2-and-protein-kinase-a-signaling-in-mouse-dental-papilla-cells
#8
Sousuke Kanaya, Binlu Xiao, Yukihiko Sakisaka, Mizuki Suto, Kentaro Maruyama, Masahiro Saito, Eiji Nemoto
We previously reported that elevated extracellular calcium (Ca2+) levels increase bone morphogenetic protein 2 expression in human dental pulp (hDP) cells. However, it is unknown whether extracellular Ca2+ affects the expression of other growth factors such as fibroblast growth factor 2 (FGF2). The present study aimed to examine the effect of extracellular Ca2+ on FGF2 gene expression in hDP and immortalized mouse dental papilla (mDP) cells. Cells were stimulated with 10 mM CaCl2 in the presence or absence of cell signaling inhibitors...
May 14, 2018: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29768013/synergistic-effects-of-electrical-stimulation-and-aligned-nanofibrous-microenvironment-on-growth-behaviour-of-mesenchymal-stem-cells
#9
Lin Jin, Bin Hu, Zhanrong Li, Jingguo Li, Yanzheng Gao, Zhenling Wang, Jianhua Hao
Incontrollable cellular growth behaviour is a significant issue that severely affects the functional tissue formation and cellular protein expression. Development of natural extracellular matrix (ECM) like biomaterials to present microenvironment cues for the regulation of cell responses can effectively overcome this problem. The external simulation and topological characteristics as guiding cues are capable of providing diverse influences on cellular growth. Herein, we developed two dimensional aligned conductive nanofibers (2D-ACNFs) by electrospinning process and surface polymerization, and provided the effects of both alignment and electrical stimulation (ES) on cellular response of human mesenchymal cells (hMSCs)...
May 16, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29767252/colony-stimulating-factor-1-and-colony-stimulating-factor-1-receptor-co-expression-is-associated-with-disease-progression-in-gastric-cancer
#10
Yoshinaga Okugawa, Yuji Toiyama, Takashi Ichikawa, Mikio Kawamura, Hiromi Yasuda, Hiroyuki Fujikawa, Susumu Saigusa, Masaki Ohi, Toshimitsu Araki, Koji Tanaka, Yasuhiro Inoue, Motoyoshi Tanaka, Chikao Miki, Masato Kusunoki
Colony‑stimulating‑factor‑1 (CSF‑1) is a hematopoietic growth factor that exerts its effects through the c‑fms/CSF‑1 receptor (CSF‑1R). The CSF‑1/CSF‑1R axis is thought to be involved in the development of several types of cancer. This study aimed to clarify the clinical and biological significance of the CSF‑1/CSF‑1R axis in gastric cancer (GC). For this purpose, we evaluated CSF‑1 and CSF‑1R expression in GC tissues from 148 patients by RT‑qPCR and immunohistochemistry. The biological roles of the CSF‑1/CSF‑1R axis were investigated by measuring the cell proliferation and migration, and anoikis resistance in a human GC cell line following treatment with recombinant human CSF‑1 and/or CSF‑1R inhibitor...
May 16, 2018: International Journal of Oncology
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
#11
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/29766147/the-non-preventive-effects-of-human-menopausal-gonadotropins-on-ovarian-tissues-in-nandrolone-decanoate-treated-female-rats-a-histochemical-and-ultra-structural-study
#12
Fakhroddin Mesbah, Hossein Bordbar, Tahereh Talaei Khozani, Farzaneh Dehghani, Hossein Mirkhani
Background: The follicular growth and development may be affected by abused drugs. Nandrolone decanoate (ND) as an anabolic androgenic steroid can damage the morphological and functional features of the ovary and may lead to reproductive failure. Objective: This study was designed to evaluate the effects of synchronized and non-synchronized administration of Human Menopausal Gonadotropins (hMG) with ND on ovarian tissue and level of sex hormones in the adult female rat...
March 2018: International Journal of Reproductive Biomedicine (Yazd, Iran)
https://www.readbyqxmd.com/read/29761549/sprifermin-treatment-enhances-cartilage-integration-in-an-in-vitro-repair-model
#13
Mackenzie L Sennett, Gregory R Meloni, Alexandra J E Farran, Hans Guehring, Robert L Mauck, George R Dodge
Cartilage integration remains a clinical challenge for treatment of focal articular defects. Cartilage exhibits limited healing capacity that declines with tissue maturation. Many approaches have been investigated for their ability to stimulate healing of mature cartilage or integration of repair tissue or tissue-engineered constructs with native cartilage. Growth factors present in immature tissue may enhance chondrogenesis and promote integrative repair of cartilage defects. In this study, we assessed the role of one such factor, fibroblast growth factor 18 (FGF18)...
May 14, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29761169/prolonged-cenicriviroc-therapy-reduces-hepatic-fibrosis-despite-steatohepatitis-in-a-diet-induced-mouse-model-of-nonalcoholic-steatohepatitis
#14
Annie J Kruger, Bryan C Fuchs, Ricard Masia, Jacinta A Holmes, Shadi Salloum, Mozhdeh Sojoodi, Diego S Ferreira, Stephanie M Rutledge, Peter Caravan, Nadia Alatrakchi, Pam Vig, Eric Lefebvre, Raymond T Chung
Nonalcoholic steatohepatitis (NASH) is a progressive liver disease projected to become the leading cause of cirrhosis and liver transplantation in the next decade. Cenicriviroc (CVC), a dual chemokine receptor 2 and 5 antagonist, prevents macrophage trafficking and is under clinical investigation for the treatment of human NASH fibrosis. We assessed the efficacy and durability of short and prolonged CVC therapy in a diet-induced mouse model of NASH, the choline deficient, L-amino acid-defined, high-fat diet (CDAHFD) model...
May 2018: Hepatology Communications
https://www.readbyqxmd.com/read/29760819/antibacterial-and-anti-inflammatory-potential-of-morus-alba-stem-extract
#15
Ichaya Yiemwattana, Niratcha Chaisomboon, Kusuma Jamdee
Background: Periodontitis, a chronic inflammatory disease, is the leading cause of tooth loss in adults. Evidence for the anti inflammatory activity of M. alba Stem Extract (MSE) in periodontal disease is limited. Objective: The study aimed to investigate the inhibitory effect of MSE on the growth of periodontopathic bacteria and expression of interleukin (IL)-6 and IL-8 in Porphyromonas gingivalis Lipopolysaccharide (LPS)-stimulated human Periodontal Ligament (hPDL) fibroblasts...
2018: Open Dentistry Journal
https://www.readbyqxmd.com/read/29756135/microbial-small-molecules-weapons-of-plant-subversion
#16
REVIEW
Ioannis A Stringlis, Hao Zhang, Corné M J Pieterse, Melvin D Bolton, Ronnie de Jonge
Covering: up to 2018Plants live in close association with a myriad of microbes that are generally harmless. However, the minority of microbes that are pathogens can severely impact crop quality and yield, thereby endangering food security. By contrast, beneficial microbes provide plants with important services, such as enhanced nutrient uptake and protection against pests and diseases. Like pathogens, beneficial microbes can modulate host immunity to efficiently colonize the nutrient-rich niches within and around the roots and aerial tissues of a plant, a phenomenon mirroring the establishment of commensal microbes in the human gut...
May 14, 2018: Natural Product Reports
https://www.readbyqxmd.com/read/29756076/gap-junctional-communication-is-involved-in-differentiation-of-osteoclasts-from-bone-marrow-and-peripheral-blood-monocytes
#17
Elina Kylmäoja, Miho Nakamura, Hanna Kokkonen-Puuperä, Veli-Pekka Ronkainen, Petri Lehenkari, Juha Tuukkanen
Aims: The aim of the study was to compare the influence of gap junctional communication (GJC) in osteoclastogenesis from bone marrow (BM) and peripheral blood (PB) monocytes. These widely used sources differ in purity, since BM cultures contain a significant number of stromal cells. We studied whether stimulation of GJC in BM monocyte/stromal cell cultures differs from the effect in pure PB monocyte cultures. We compared the differentiation also in acidosis, which is a known inducer of bone resorption...
May 2018: Heliyon
https://www.readbyqxmd.com/read/29755461/efficient-uptake-of-recombinant-lipidated-survivin-by-antigen-presenting-cells-initiates-antigen-cross-presentation-and-antitumor-immunity
#18
Chen-Yi Chiang, Yi-Jyun Chen, Chiao-Chieh Wu, Shih-Jen Liu, Chih-Hsiang Leng, Hsin-Wei Chen
Survivin is overexpressed in various types of human cancer, but rarely expressed in terminally differentiated adult tissues. Thus, survivin is a potential target antigen for a cancer vaccine. However, self-tumor-associated antigens are not highly immunogenic. Bacteria-derived lipoproteins can activate antigen-presenting cells through their toll-like receptors to enhance immune responses. In this context, lipidated survivin is an attractive candidate for cancer immunotherapy. In the present study, recombinant lipidated human survivin (LSur) was prepared from an Escherichia coli -based system...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29752774/mesenchymal-stem-cells-promote-lymphangiogenic-properties-of-lymphatic-endothelial-cells
#19
Jan W Robering, Annika Weigand, Romy Pfuhlmann, Raymund E Horch, Justus P Beier, Anja M Boos
Lymphatic metastasis is one of the main prognostic factors concerning long-term survival of cancer patients. In this regard, the molecular mechanisms of lymphangiogenesis are still rarely explored. Also, the interactions between stem cells and lymphatic endothelial cells (LEC) in humans have not been well examined. Therefore, the main objective of this study was to assess the interactions between mesenchymal stem cells (MSC) and LEC using in vitro angiogenesis assays. Juvenile LEC were stimulated with VEGF-C, bFGF, MSC-conditioned medium (MSC-CM) or by co-culture with MSC...
May 11, 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29752412/properly-folded-and-functional-porb-from-neisseria-gonorrhoeae-inhibits-dendritic-cell-stimulation-of-cd4-t-cell-proliferation
#20
Weiyan Zhu, Joshua Tomberg, Kayla J Knilans, James E Anderson, Karen P McKinnon, Gregory D Sempowski, Robert A Nicholas, Joseph A Duncan
Neisseria gonorrhoeae is an exclusive human pathogen that evades the host immune system through multiple mechanisms. We have shown that N. gonorrhoeae  suppresses the capacity of antigen-presenting cells to induce CD4+ T cell proliferation. In this study, we sought to determine the gonococcal factors involved in this adaptive immune suppression. We show that suppression of the capacity of antigen-pulsed dendritic cells to induce T cell proliferation is recapitulated by administration of a high molecular weight fraction of conditioned medium from N...
May 11, 2018: Journal of Biological Chemistry
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