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https://www.readbyqxmd.com/read/28716123/differentiating-mouse-embryonic-stem-cells-express-markers-of-human-endometrium
#1
P Parasar, C R Sacha, N Ng, E R McGuirk, S Chinthala, P Ozcan, J Lindsey, S Salas, M R Laufer, S A Missmer, R M Anchan
BACKGROUND: Modeling early endometrial differentiation is a crucial step towards understanding the divergent pathways between normal and ectopic endometrial development as seen in endometriosis. METHODS: To investigate these pathways, mouse embryonic stem cells (mESCs) and embryoid bodies (EBs) were differentiated in standard EB medium (EBM). Immunofluorescence (IF) staining and reverse-transcription polymerase chain reaction (RT-PCR) were used to detect expression of human endometrial cell markers on differentiating cells, which were sorted into distinct populations using fluorescence-activated cell sorting (FACS)...
July 17, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/28714970/bone-marrow-adipocytes-promote-the-regeneration-of-stem-cells-and-haematopoiesis-by-secreting-scf
#2
Bo O Zhou, Hua Yu, Rui Yue, Zhiyu Zhao, Jonathan J Rios, Olaia Naveiras, Sean J Morrison
Endothelial cells and leptin receptor(+) (LepR(+)) stromal cells are critical sources of haematopoietic stem cell (HSC) niche factors, including stem cell factor (SCF), in bone marrow. After irradiation or chemotherapy, these cells are depleted while adipocytes become abundant. We discovered that bone marrow adipocytes synthesize SCF. They arise from Adipoq-Cre/ER(+) progenitors, which represent ∼5% of LepR(+) cells, and proliferate after irradiation. Scf deletion using Adipoq-Cre/ER inhibited haematopoietic regeneration after irradiation or 5-fluorouracil treatment, depleting HSCs and reducing mouse survival...
July 17, 2017: Nature Cell Biology
https://www.readbyqxmd.com/read/28714595/telocytes-in-normal-and-keratoconic-human-cornea-an-immunohistochemical-and-transmission-electron-microscopy-study
#3
Mirca Marini, Rita Mencucci, Irene Rosa, Eleonora Favuzza, Daniele Guasti, Lidia Ibba-Manneschi, Mirko Manetti
Telocytes (TC) are typically defined as cells with telopodes by their ultrastructural features. Their presence was reported in the interstitium of various organs in vertebrates, including humans. However, no study has yet described the presence of TC in the human eye and in particular, within the stromal compartment of the cornea. To address this issue, samples of normal and pathologic (keratoconic) human corneas were tested by immunohistochemistry for CD34, platelet-derived growth factor receptor α (PDGFRα) and c-kit/CD117 or examined by transmission electron microscopy...
July 17, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28713938/effects-of-age-on-biological-and-functional-characterization-of-adipose%C3%A2-derived-stem-cells-from-patients-with-end%C3%A2-stage-liver-disease
#4
Yanyu Jin, Lei Yang, Yanyan Zhang, Wei Gao, Zhi Yao, Yang Song, Yuliang Wang
Adipose‑derived mesenchymal stromal cells (ADSCs) possess a multilineage potential and immunoregulatory properties, and may have great potential in autologous cell‑based technologies. The aim of the present study was to investigate how the age of patients with benign end‑stage liver disease affected the biological and functional characteristics of ADSCs, which is important for increasing the potential effectiveness of autologous cell therapy. ADSCs were obtained and cultured from three distinct age groups: Infant, adult and elderly...
July 13, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28713638/neurovascular-cell-sheet-transplantation-in-a-canine-model-of-intracranial-hemorrhage
#5
Woo-Jin Lee, Jong Young Lee, Keun-Hwa Jung, Soon-Tae Lee, Hyo Yeol Kim, Dong-Kyu Park, Jung-Suk Yu, So-Yun Kim, Daejong Jeon, Manho Kim, Sang Kun Lee, Jae-Kyu Roh, Kon Chu
Cell-based therapy for intracerebral hemorrhage (ICH) has a great therapeutic potential. However, methods to effectively induce direct regeneration of the damaged neural tissue after cell transplantation have not been established, which, if done, would improve the efficacy of cell-based therapy. In this study, we aimed to develop a cell sheet with neurovasculogenic potential and evaluate its usefulness in a canine ICH model. We designed a composite cell sheet made of neural progenitors derived from human olfactory neuroepithelium and vascular progenitors from human adipose tissue-derived stromal cells...
2017: Cell Medicine
https://www.readbyqxmd.com/read/28713379/op9-feeder-cells-are-superior-to-m2-10b4-cells-for-the-generation-of-mature-and-functional-natural-killer-cells-from-umbilical-cord-hematopoietic-progenitors
#6
Lara Herrera, Juan Manuel Salcedo, Silvia Santos, Miguel Ángel Vesga, Francisco Borrego, Cristina Eguizabal
Adoptive natural killer (NK) cell therapy relies on the acquisition of large numbers of mature and functional NK cells. An option for future immunotherapy treatments is to use large amounts of NK cells derived and differentiated from umbilical cord blood (UCB) CD34(+) hematopoietic stem cells (HSCs), mainly because UCB is one of the most accessible HSC sources. In our study, we compared the potential of two stromal cell lines, OP9 and M2-10B4, for in vitro generation of mature and functional CD56(+) NK cells from UCB CD34(+) HSC...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28711757/cxcr4-and-cxcr7-play-distinct-roles-in-cardiac-lineage-specification-and-pharmacologic-%C3%AE-adrenergic-response
#7
Delaine K Ceholski, Irene C Turnbull, Venu Pothula, Laura Lecce, Andrew A Jarrah, Changwon Kho, Ahyoung Lee, Lahouaria Hadri, Kevin D Costa, Roger J Hajjar, Sima T Tarzami
CXCR4 and CXCR7 are prominent G protein-coupled receptors (GPCRs) for chemokine stromal cell-derived factor-1 (SDF-1/CXCL12). This study demonstrates that CXCR4 and CXCR7 induce differential effects during cardiac lineage differentiation and β-adrenergic response in human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs). Using lentiviral vectors to ablate CXCR4 and/or CXCR7 expression, hiPSC-CMs were tested for phenotypic and functional properties due to gene knockdown. Gene expression and flow cytometry confirmed the pluripotent and cardiomyocyte phenotype of undifferentiated and differentiated hiPSCs, respectively...
July 8, 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28710961/epigenetic-modification-differences-between-fetal-fibroblast-cells-and-mesenchymal-stem-cells-of-the-arbas-cashmere-goat
#8
Xiao Wang, Zhimin Wang, Qing Wang, Hefei Wang, Hao Liang, Dongjun Liu
To explore the epigenetic mechanisms regulating mesenchymal stem cells, we analyzed epigenetic patterns in control goat fetal fibroblast cells (gFFCs), adipose-derived stem cells (gADSCs), bone marrow stromal cells (gBMSCs), and muscle-derived satellite cells (gMDSCs). We found that the 5mC content of gBMSC genomes was lower than that of gFFC genomes, while the 5mC content of gADSC and gMDSC genomes surpassed that of gFFC genomes. H3K9 acetylation did not differ significantly among those cells; gFFCs, gADSCs, and gMDSCs contained acetylated H3K9, H3K14, H3K18, H4K5, and H4K12, but gBMSCs contained almost no acetylated H4K5 and H4K12...
July 9, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28710685/pericytes-extend-survival-of-als-sod1-mice-and-induce-the-expression-of-antioxidant-enzymes-in-the-murine-model-and-in-ipscs-derived-neuronal-cells-from-an-als-patient
#9
Giuliana Castello Coatti, Miriam Frangini, Marcos C Valadares, Juliana Plat Gomes, Natalia O Lima, Natale Cavaçana, Amanda F Assoni, Mayra V Pelatti, Alexander Birbrair, Antonio Carlos Pedroso de Lima, Julio M Singer, Francisco Marcelo M Rocha, Giovani Loiola Da Silva, Mario Sergio Mantovani, Lucia Inês Macedo-Souza, Merari F R Ferrari, Mayana Zatz
Amyotrophic Lateral Sclerosis (ALS) is one of the most common adult-onset motor neuron disease causing a progressive, rapid and irreversible degeneration of motor neurons in the cortex, brain stem and spinal cord. No effective treatment is available and cell therapy clinical trials are currently being tested in ALS affected patients. It is well known that in ALS patients, approximately 50% of pericytes from the spinal cord barrier are lost. In the central nervous system, pericytes act in the formation and maintenance of the blood-brain barrier, a natural defense that slows the progression of symptoms in neurodegenerative diseases...
July 14, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/28706537/can-human-embryonic-stem-cell-derived-stromal-cells-serve-a-starting-material-for-myoblasts
#10
Yu Ando, Marie Saito, Masakazu Machida, Chikako Yoshida-Noro, Hidenori Akutsu, Masataka Takahashi, Masashi Toyoda, Akihiro Umezawa
A large number of myocytes are necessary to treat intractable muscular disorders such as Duchenne muscular dystrophy with cell-based therapies. However, starting materials for cellular therapy products such as myoblasts, marrow stromal cells, menstrual blood-derived cells, and placenta-derived cells have a limited lifespan and cease to proliferate in vitro. From the viewpoints of manufacturing and quality control, cells with a long lifespan are more suitable as a starting material. In this study, we generated stromal cells for future myoblast therapy from a working cell bank of human embryonic stem cells (ESCs)...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28706339/expansion-of-bone-marrow-derived-human-mesenchymal-stem-stromal-cells-hmscs-using-a-two-phase-liquid-liquid-system
#11
Mariana P Hanga, Halina Murasiewicz, Andrzej W Pacek, Alvin W Nienow, Karen Coopman, Christopher J Hewitt
BACKGROUND: Human mesenchymal stem/stromal cells (hMSCs) are at the forefront of regenerative medicine applications due to their relatively easy isolation and availability in adults, potential to differentiate and to secrete a range of trophic factors that could determine specialised tissue regeneration. To date, hMSCs have been successfully cultured in vitro on substrates such as polystyrene dishes (TCPS) or microcarriers. However, hMSC sub-cultivation and harvest typically employs proteolytic enzymes that act by cleaving important cell membrane proteins resulting in long-term cell damage...
July 2017: Journal of Chemical Technology and Biotechnology
https://www.readbyqxmd.com/read/28705238/interleukin-3-enhances-the-migration-of-human-mesenchymal-stem-cells-by-regulating-expression-of-cxcr4
#12
Amruta Barhanpurkar-Naik, Suhas T Mhaske, Satish T Pote, Kanupriya Singh, Mohan R Wani
BACKGROUND: Mesenchymal stem cells (MSCs) represent an important source for cell therapy in regenerative medicine. MSCs have shown promising results for repair of damaged tissues in various degenerative diseases in animal models and also in human clinical trials. However, little is known about the factors that could enhance the migration and tissue-specific engraftment of exogenously infused MSCs for successful regenerative cell therapy. Previously, we have reported that interleukin-3 (IL-3) prevents bone and cartilage damage in animal models of rheumatoid arthritis and osteoarthritis...
July 14, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28705007/pancreas-adenocarcinoma-novel-therapeutics
#13
Benjamin A Krantz, Kenneth H Yu, Eileen M O'Reilly
Pancreatic ductal adenocarcinoma (PDAC) is the third highest cause of cancer-related deaths in the US, and is projected to be second only to non-small cell lung cancer (NSCLC) by the 2020s. Current therapies have a modest impact on survival and median overall survival (mOS) across all stages of disease remains under a year. Over the last decade, however, great strides have been made in the understanding of PDAC pathobiology including the role of the tumor microenvironment (TME), DNA damage repair and mechanism of immunosuppression...
June 2017: Chinese Clinical Oncology
https://www.readbyqxmd.com/read/28703802/an-autocrine-inflammatory-forward-feedback-loop-after-chemotherapy-withdrawal-facilitates-the-repopulation-of-drug-resistant-breast-cancer-cells
#14
Deyong Jia, Li Li, Sulaiman Andrew, David Allan, Xuguang Li, Jonathan Lee, Guang Ji, Zemin Yao, Suresh Gadde, Danial Figeys, Lisheng Wang
Stromal cells, infiltrating immune cells, paracrine factors and extracellular matrix have been extensively studied in cancers. However, autocrine factors produced by tumor cells and communications between autocrine factors and intracellular signaling pathways in the development of drug resistance, cancer stem-like cells (CSCs) and tumorigenesis have not been well investigated, and the precise mechanism and tangible approaches remain elusive. Here we reveal a new mechanism by which cytokines produced by breast cancer cells after chemotherapy withdrawal activate both Wnt/β-catenin and NF-κB pathways, which in turn further promote breast cancer cells to produce and secrete cytokines, forming an autocrine inflammatory forward-feedback loop to facilitate the enrichment of drug-resistant breast cancer cells and/or CSCs...
July 13, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28701751/secretome-of-in-vitro-cultured-human-embryos-contains-extracellular-vesicles-that-are-uptaken-by-the-maternal-side
#15
Elisa Giacomini, Riccardo Vago, Ana Maria Sanchez, Paola Podini, Natasa Zarovni, Valentina Murdica, Roberta Rizzo, Daria Bortolotti, Massimo Candiani, Paola Viganò
Communication between embryo and maternal endometrium occurs during a specific time frame in which implantation is possible. Here we demonstrate for the first time that conditioned media from non-manipulated human embryos cultured in vitro for 3 days or up to the blastocyst stage contain extracellular vesicles (EVs) with a diameter of 50 to 200 nm and bearing the traditional microvesicle and exosome marker proteins CD63, CD9 and ALIX. The embryonic origin of these EVs has been confirmed by the presence of stemness gene transcripts and their enrichment in the non-classical HLA-G protein...
July 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28701189/stromal-derived-factor-1-mediates-the-lung-regenerative-effects-of-mesenchymal-stem-cells-in-a-rodent-model-of-bronchopulmonary-dysplasia
#16
Joel Reiter, Shelley Drummond, Ibrahim Sammour, Jian Huang, Victoria Florea, Polliana Dornas, Joshua M Hare, Claudia O Rodrigues, Karen C Young
BACKGROUND: Mesenchymal stem cells (MSCs) attenuate lung injury in experimental models of bronchopulmonary dysplasia (BPD). Stromal derived factor-1 (SDF-1), a chemokine secreted by MSCs, modulates angiogenesis and stem cell recruitment. Here we tested the hypothesis that SDF-1 mediates MSC protective effects in experimental BPD by modulating angiogenesis. METHODS: SDF-1 was knocked down in MSCs using lentiviral vectors carrying anti-SDF-1 short hairpin RNA (MSC-SDF KD)...
July 12, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28701175/isolation-and-characterization-of-equine-endometrial-mesenchymal-stromal-cells
#17
B Elisabeth Rink, Karin R Amilon, Cristina L Esteves, Hilari M French, Elaine Watson, Christine Aurich, F Xavier Donadeu
BACKGROUND: Equine mesenchymal stromal/stem cells (MSCs) are most commonly harvested from bone marrow (BM) or adipose tissue, requiring the use of surgical procedures. By contrast, the uterus can be accessed nonsurgically, and may provide a more readily available cell source. While human endometrium is known to harbor mesenchymal precursor cells, MSCs have not been identified in equine endometrium. This study reports the isolation, culture, and characterization of MSCs from equine endometrium...
July 12, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28700252/modified-allogenic-simple-limbal-epithelial-transplantation-followed-by-keratoplasty-as-treatment-for-total-limbal-stem-cell-deficiency
#18
Alfonso Vasquez-Perez, Mayank A Nanavaty
PURPOSE: To describe a modified allogenic simple limbal epithelial transplant (SLET) technique with large donor tissue explants followed by keratoplasty. METHODS: A 69-year-old with conjunctival melanoma on her left eye developed total limbal stem cell deficiency (LSCD) after multiple cycles of topical mitomycin. She also had herpes stromal keratitis while on treatment with mitomycin. She underwent modified allogenic SLET with large donor limbal tissue explants glued on the cornea directly and the amniotic membrane placed over the limbal explants...
July 12, 2017: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/28699788/allogeneic-cell-therapy-manufacturing-process-development-technologies-and-facility-design-options
#19
Saeed Abbasalizadeh, Mohammad Pakzad, Joaquim M S Cabral, Hossein Baharvand
Currently, promising outcomes from clinical trials of allogeneic cells, especially allogeneic mesenchymal stromal cells, fibroblasts, keratinocytes, and human cardiac stem cells, have encouraged research institutions, small and medium enterprises (SMEs), and big pharmaceutical companies to invest and focus on developing allogeneic cell therapy products. Commercial and large-scale production of allogeneic cell therapy products requires unique capabilities to develop technologies that generate safe and effective allogeneic cells/cell lines and their fully characterized master/working banks...
July 12, 2017: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/28699252/mesenchymal-stromal-cell-derived-il-6-promotes-epithelial-mesenchymal-transition-and-acquisition-of-epithelial-stem-like-cell-properties-in-ameloblastoma-epithelial-cells
#20
Chunmiao Jiang, Qunzhou Zhang, Rabie M Shanti, Shihong Shi, Ting-Han Chang, Lee Carrasco, Faizan Alawi, Anh D Le
Epithelial-mesenchymal transition (EMT), a biological process associated with cancer stem-like or cancer-initiating cell (CSC) formation, contributes to the invasiveness, metastasis, drug resistance, and recurrence of the malignant tumors; it remains to be determined whether similar processes contribute to the pathogenesis and progression of ameloblastoma, a benign but locally invasive odontogenic neoplasm. Here, we demonstrated that EMT- and stem cell-related genes were expressed in the epithelial islands of the most common histologic variant subtype, the follicular ameloblastoma...
July 11, 2017: Stem Cells
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