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Amniotic fluid stem cells

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https://www.readbyqxmd.com/read/28752425/minimal-modulation-of-the-host-immune-response-to-sis-matrix-implants-by-mesenchymal-stem-cells-from-the-amniotic-fluid
#1
F Lesage, S Pranpanus, F M Bosisio, M Jacobs, S Ospitalieri, J Toelen, J Deprest
PURPOSE: Surgical restoration of soft tissue defects often requires implantable devices. The clinical outcome of the surgery is determined by the properties inherent to the used matrix. Mesenchymal stem cells (MSC) modulate the immune processes after in vivo transplantation and their addition to matrices is associated with constructive remodeling. Herein we evaluate the potential of MSC derived from the amniotic fluid (AF-MSC), an interesting MSC source for cell therapeutic applications in the perinatal period, for immune modulation when added to a biomaterial...
July 27, 2017: Hernia: the Journal of Hernias and Abdominal Wall Surgery
https://www.readbyqxmd.com/read/28747757/tgf%C3%AE-induced-osteogenic-potential-of-human-amniotic-fluid-stem-cells-via-cd73-generated-adenosine-production
#2
Kwan-Leong Hau, Anna Maria Ranzoni, Filipa Vlahova, Kate Hawkins, Paolo De Coppi, Anna L David, Pascale V Guillot
The human amniotic fluid stem cell (hAFSC) population consists of two morphologically distinct subtypes, spindle-shaped and round-shaped cells (SS-hAFSCs and RS-hAFSCs). Whilst SS-hAFSCs are routinely expanded in mesenchymal-type (MT) conditions, we previously showed that they acquire broader differentiation potential when cultured under embryonic-type (ET) conditions. However, the effects of culture conditions on RS-hAFSCs have not been determined. Here, we show that culturing RS-hAFSCs under ET conditions confers faster proliferation and enhances the efficiency of osteogenic differentiation of the cells...
July 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28708036/amniotic-fluid-cells-show-higher-pluripotency-related-gene-expression-than-allantoic-fluid-cells
#3
Debora Kehl, Melanie Generali, Sabrina Görtz, Diego Geering, Jaroslav Slamecka, Simon P Hoerstrup, Ulrich Bleul, Benedikt Weber
Amniotic fluid represents an abundant source of multipotent stem cells, referred as broadly multipotent given their differentiation potential and expression of pluripotency-related genes. However, the origin of this broadly multipotent cellular fraction is not fully understood. Several sources have been proposed so far, including embryonic and extraembryonic tissues. In this regard, the ovine developmental model uniquely allows for direct comparison of fetal fluid-derived cells from two separate fetal fluid cavities, the allantois and the amnion, over the entire duration of gestation...
August 14, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28679310/protein-and-molecular-characterisation-of-a-clinically-compliant-amniotic-fluid-stem-cell-derived-extracellular-vesicle-fraction-capable-of-accelerating-muscle-regeneration-through-the-enhancement-of-angiogenesis
#4
Ben Mellows, Robert Mitchell, Manuela Antonioli, Oliver Kretz, David Chamber, Marie-Theres Zeuner, Bernd Denecke, Luca Musante, Durrgah Ramachandra, Florence Debacq-Chainiaux, Harry Holthofer, Barbara Joch, Steve Ray, Darius Widera, Anna L David, Tobios B Huber, Joern Dengjel, Paolo De Coppi, Ketan Patel
The secretome of human amniotic fluid stem cells (AFSC) has great potential as a therapeutic agent in regenerative medicine. However it must be produced in a clinically compliant manner before it can be used in humans. Here we developed a means of producing a biologically active secretome from AFSCs that is free of all exogenous molecules. We demonstrate that the full secretome is capable of promoting stem cell proliferation, migration and protection of cells against senescence. Furthermore, it has significant anti-inflammatory properties...
July 5, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28675062/lung-regeneration-using-amniotic-fluid-mesenchymal-stem-cells
#5
Alireza Azargoon, Babak Negahdari
Respiratory diseases, such as chronic obstructive pulmonary disease (COPD), pulmonary hypertension and lung fibrosis, are yet a major challenge in the world and they result in irreversible structural lung damage. Lung transplantation as the only therapeutic option face some major challenges like graft rejection and cancer, arising as a result of immunosuppression. A low survival rate faced by lung transplantation patients is presently limited to approximately 5 years. Lungs shortage therefore calls for a mechanism that would increase the availability of suitable organs for transplantation...
July 4, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28653478/different-rna-and-protein-expression-of-surface-markers-in-rabbit-amniotic-fluid-derived-mesenchymal-stem-cells
#6
Michal Kovac, Jaromir Vasicek, Barbora Kulikova, Miroslav Bauer, Jozef Curlej, Andrej Balazi, Peter Chrenek
Over the years, there has been much confusion in defining molecular markers of mesenchymal stem cells (MSCs) for other than human species due to a lack of species-specific antibodies. Therefore, the aim of our study was to define rabbit amniotic fluid-derived mesenchymal stem cells (rAF-MSCs) and to reflect upon the current identification of AF-MSCs by providing a summary of detected surface markers in different species. The expression of rAF-MSC surface markers was analyzed at the protein and mRNA level. Flow cytometry analyses showed that rAF-MSCs were positive for CD29 and CD44, low positive for CD90, but negative for CD73, CD105 and CD166...
June 27, 2017: Biotechnology Progress
https://www.readbyqxmd.com/read/28629288/p53-mutation-and-epigenetic-imprinted-igf2-h19-gene-analysis-in-mesenchymal-stem-cells-derived-from-amniotic-fluid-amnion-endometrium-and-wharton-s-jelly
#7
Tatsanee Phermthai, Puttachart Pokathikorn, Suparat Wichitwiengrat, Sasiprapa Thongbopit, Kittima Tungprasertpol, Suphakde Julavijitphong
Mesenchymal stem cells (MSC) are promising cells for medical therapy. In in vitro expansion, MSC can give rise to progeny with genomic and epigenomic alterations, resulting in senescence, loss of terminal differentiation, and transformation to cancer. However, MSC genome protects its genetic instability by a guardian function of the P53 tumor suppressor gene and epigenetic balance system during MSC culture. Mutations of P53 and epigenetic alterations have been reported to disrupt the quality and quantity of MSC and initiate tumorigenesis...
June 14, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28624056/evaluating-the-efficacy-of-different-types-of-stem-cells-in-preserving-gut-barrier-function-in-necrotizing-enterocolitis
#8
Christopher J McCulloh, Jacob K Olson, Yijie Wang, Jennifer Vu, Sarah Gartner, Gail E Besner
BACKGROUND: Necrotizing enterocolitis (NEC) is a leading cause of morbidity and mortality in premature infants. Increased intestinal permeability is central to NEC development. We have shown that stem cells (SCs) can reduce the incidence and severity of NEC. Our current goal was to investigate the efficacy of four different types of SC in preservation of gut barrier function during NEC. MATERIALS AND METHODS: We compared (1) amniotic fluid-derived mesenchymal SC, (2) bone marrow-derived mesenchymal SC, (3) amniotic fluid-derived neural SC, and (4) enteric neural SC...
June 15, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28620747/amniotic-fluid-cells-current-progress-and-emerging-challenges-in-renal-regeneration
#9
REVIEW
Stefano Da Sacco, Laura Perin, Sargis Sedrakyan
Amniotic fluid (AF) contains a heterogeneous population of cells that have been identified to possess pluripotent and progenitor-like characteristics. These cells have been applied in various regenerative medicine applications ranging from in vitro cell differentiation to tissue engineering to cellular therapies for different organs including the heart, the liver, the lung, and the kidneys. In this review, we examine the different methodologies used for the derivation of amniotic fluid stem cells and renal progenitors, and their application in renal repair and regeneration...
June 15, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28605059/amniotic-fluid-stem-cells-ameliorate-bladder-dysfunction-induced-by-chronic-bladder-ischemia-in-rat
#10
Ching-Chung Liang, Sheng-Wen Steven Shaw, Yi-Hao Lin, Tsong-Hai Lee
AIMS: This study investigated the protective effect of human amniotic fluid-derived stem cells (hAFSCs) against bladder overactivity in rat model of atherosclerosis-induced chronic bladder ischemia. METHODS: Adult female Sprague-Dawley rats were divided into six groups: (1) Normal control with a regular diet for 8 weeks, (2) Sham-operation, (3) arterial balloon endothelial injury (AEI) of common iliac artery (AEI only), and post-AEI consecutive hAFSCs treatment for (4) 1 day, (5) 3 days, and (6) 7 days...
June 12, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28591652/fetal-therapy-model-of-myelomeningocele-with-three-dimensional-skin-using-amniotic-fluid-cell-derived-induced-pluripotent-stem-cells
#11
Kazuhiro Kajiwara, Tomohiro Tanemoto, Seiji Wada, Jurii Karibe, Norimasa Ihara, Yu Ikemoto, Tomoyuki Kawasaki, Yoshie Oishi, Osamu Samura, Kohji Okamura, Shuji Takada, Hidenori Akutsu, Haruhiko Sago, Aikou Okamoto, Akihiro Umezawa
Myelomeningocele (MMC) is a congenital disease without genetic abnormalities. Neurological symptoms are irreversibly impaired after birth, and no effective treatment has been reported to date. Only surgical repairs have been reported so far. In this study, we performed antenatal treatment of MMC with an artificial skin using induced pluripotent stem cells (iPSCs) generated from a patient with Down syndrome (AF-T21-iPSCs) and twin-twin transfusion syndrome (AF-TTTS-iPSCs) to a rat model. We manufactured three-dimensional skin with epidermis generated from keratinocytes derived from AF-T21-iPSCs and AF-TTTS-iPSCs and dermis of human fibroblasts and collagen type I...
June 6, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28571656/development-of-a-novel-method-for-amniotic-fluid-stem-cell-storage
#12
Manuela Zavatti, Francesca Beretti, Francesca Casciaro, Giuseppina Comitini, Fabrizia Franchi, Veronica Barbieri, Laura Bertoni, Anto De Pol, Giovanni B La Sala, Tullia Maraldi
BACKGROUND AIMS: Current procedures for collection of human amniotic fluid stem cells (hAFSCs) indicate that cells cultured in a flask for 2 weeks can then be used for research. However, hAFSCs can be retrieved directly from a small amount of amniotic fluid that can be obtained at the time of diagnostic amniocentesis. The aim of this study was to determine whether direct freezing of amniotic fluid cells is able to maintain or improve the potential of a sub-population of stem cells. METHODS: We compared the potential of the hAFSCs regarding timing of freezing, cells obtained directly from amniotic fluid aspiration (D samples) and cells cultured in a flask before freezing (C samples)...
May 29, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28564708/modulation-of-the-early-host-response-to-electrospun-polylactic-acid-matrices-by-mesenchymal-stem-cells-from-the-amniotic-fluid
#13
Flore Lesage, Sabiniano Roman, Savitree Pranpanus, Simona Ospitalieri, Silvia Zia, Julio Jimenez, Sheila MacNeil, Jaan Toelen, Jan Deprest
No abstract text is available yet for this article.
May 31, 2017: European Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28545044/differentiation-of-spontaneously-contracting-cardiomyocytes-from-non-virally-reprogrammed-human-amniotic-fluid-stem-cells
#14
Aaron J Velasquez-Mao, Christopher J M Tsao, Madeline N Monroe, Xavier Legras, Beatrice Bissig-Choisat, Karl-Dimiter Bissig, Rodrigo Ruano, Jeffrey G Jacot
Congenital heart defects are the most common birth defect. The limiting factor in tissue engineering repair strategies is an autologous source of functional cardiomyocytes. Amniotic fluid contains an ideal cell source for prenatal harvest and use in correction of congenital heart defects. This study aims to investigate the potential of amniotic fluid-derived stem cells (AFSC) to undergo non-viral reprogramming into induced pluripotent stem cells (iPSC) followed by growth-factor-free differentiation into functional cardiomyocytes...
2017: PloS One
https://www.readbyqxmd.com/read/28520465/mesenchymal-stem-stromal-cells-in-regenerative-medicine-past-present-and-future
#15
Ourania Trohatou, Maria G Roubelakis
The concept of Regenerative Medicine combined with Cell based Therapy and Tissue Engineering represents the fourth pillar of healthcare and provides a promising approach for the treatment of serious diseases. Recently, cell based therapies are focused on the use of mesenchymal stem/stromal cells (MSCs). Human MSCs, that represent a mesoderm derived population of progenitors, are easily expanded in culture. They are capable to differentiate into osteoblasts, chondrocytes, and adipocytes and exhibit the potential to repair or regenerate damaged tissues...
August 2017: Cellular Reprogramming
https://www.readbyqxmd.com/read/28508565/menaquinone-4-enhances-osteogenic-potential-of-human-amniotic-fluid-mesenchymal-stem-cells-cultured-in-a-2d-and-3d-dynamic-culture-system
#16
Domitilla Mandatori, Letizia Penolazzi, Caterina Pipino, Pamela Di Tomo, Sara Di Silvestre, Natalia Di Pietro, Sara Trevisani, Marco Angelozzi, Mariangela Ucci, Roberta Piva, Assunta Pandolfi
Menaquinones, also known as Vitamin K2 family, regulate calcium homeostasis in a "bone-vascular cross talk" and recently received particular attention for their positive effect on bone formation. Since the correlation between menaquinones and bone metabolism to date is still unclear, the objective of our study was to investigate the possible role of menaquinone-4 (MK-4), an isoform of the menaquinones family, in the modulation of osteogenesis. For this reason we used a model of human Amniotic Fluid Mesenchymal Stem Cells (hAFMSCs) cultured both in two-dimensional (2D) and three-dimensional (3D, RCCS™bioreactor) in vitro culture systems...
May 16, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28499502/sesamin-encouraging-effects-on-chondrogenic-differentiation-of-human-amniotic-fluid-derived-mesenchymal-stem-cells
#17
Suteera Narakornsak, Sirinda Aungsuchawan, Peeraphan Pothacharoen, Runchana Markmee, Waleephan Tancharoen, Tanongsak Laowanitwattana, Chawapon Thaojamnong, Lamaiporn Peerapapong, Nonglak Boonma, Witoon Tasuya, Junjira Keawdee, Naree Poovachiranon
Worldwide, the most recognized musculoskeletal degenerative disease is osteoarthritis (OA). Sesamin, a major abundant lignan compound present in Sesamun Indicum Linn, has been described for its various pharmacological effects and health benefits. However, the promoting effects of sesamin on chondrogenic differentiation have not yet been observed. Herein, the aim of this study was to investigate the effects of sesamin on cell cytotoxicity and the potent supporting effects on chondrogenic differentiation of human amniotic fluid-derived mesenchymal stem cells (hAF-MSCs)...
May 9, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/28499241/pathophysiology-mechanisms-and-applications-of-mesenchymal-stem-cells-for-the-treatment-of-spinal-cord-injury
#18
REVIEW
Pravin Shende, Muna Subedi
Spinal Cord Injury (SCI) is a serious devastating condition associated to the high chances of morbidity and mortality. It involves a primary and a secondary injury, former cause damages to both lower and upper motor neurones and disrupts sensory, motor and autonomic functions while the latter involves various stages of molecular plus cellular incidents which elaborate the original injury. In the treatment of SCI, stem cells possess a good therapeutic potential. Bone marrow, adipose tissue, placenta, amniotic fluid and umbilical cord are the good sources for mesenchymal stem cells...
July 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28482121/cell-therapy-for-stress-urinary-incontinence-present-day-frontiers
#19
REVIEW
Andrey Vinarov, Anthony Atala, James Yoo, Roman Slusarenco, Marat Zhumataev, Alexey Zhito, Denis Butnaru
CONTEXT: Stress urinary incontinence (SUI) significantly diminishes the quality of patients' lives. Currently available surgical and nonsurgical therapies remain far from ideal. At present advancements in cellular technologies have stirred growing interest in the use of autologous cell treatments aimed to regain urinary control. OBJECTIVE: To conduct a review of the literature and analyze preclinical and clinical studies dedicated to various cell therapies for SUI, assessing their effectiveness, safety, and future prospects...
May 8, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28379622/histone-modifications-pattern-associated-with-a-state-of-mesenchymal-stem-cell-cultures-derived-from-amniotic-fluid-of-normal-and-fetus-affected-gestations
#20
Jūratė Savickienė, Dalius Matuzevičius, Sandra Baronaitė, Gražina Treigytė, Natalija Krasovskaja, Ilona Zaikova, Dalius Navakauskas, Algirdas Utkus, Rūta Navakauskienė
Human amniotic fluid (AF)-derived mesenchymal stem cells (MSCs) sharing embryonic and adult stem cells characteristics are interesting by their multipotency and the usage for regenerative medicine. However, the usefulness of these cells for revealing the fetal diseases still needs to be assessed. Here, we have analyzed the epigenetic environment in terms of histone modifications in cultures of MSCs derived from AF of normal pregnancies and those with fetal abnormalities. The comparison of MSCs samples from AF of normal pregnancies (N) and fetus-affected (P) revealed two distinct cultures by their proliferation potential (P I and P II)...
April 5, 2017: Journal of Cellular Biochemistry
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