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Stem cell transplant harvest

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https://www.readbyqxmd.com/read/29780916/visual-acuity-of-20-32-13-5-years-after-a-retinal-pigment-epithelium-and-choroid-graft-transplantation
#1
Elsbeth J T van Zeeburg, Kristel J M Maaijwee, Jan C van Meurs
Purpose: To present the 13.5-year-survival of an autologous retinal pigment epithelium (RPE) and choroid graft transplantation with good visual acuity results. Observations: A 72-year old patient presented with a 5-weeks-old visual acuity deterioration to excentric finger counting at half a meter. Fundoscopy showed a fibrotic macular scar, a large subretinal hemorrhage, partly recent, combined with intraretinal fluid, blood, and hard exudates. RPE-choroid graft surgery was performed, and visual acuity improved to 20/32, and maintained up until 13...
June 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29777574/factors-influencing-the-umbilical-cord-blood-stem-cell-industry-an-evolving-treatment-landscape
#2
REVIEW
Carla Dessels, Marco Alessandrini, Michael Sean Pepper
Hematopoietic stem cell transplantation (HSCT) is common practice today for life threatening malignant and non-malignant diseases of the blood and immune systems. Umbilical cord blood (UCB) is rich in hematopoietic stem cells (HSCs) and is an attractive alternative to harvesting HSCs from bone marrow or when mobilized into peripheral blood. One of the most appealing attributes of UCB is that it can be banked for future use and hence provides an off-the-shelf solution for patients in urgent need of a transplantation...
May 18, 2018: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/29769672/pancreas-regeneration
#3
REVIEW
Qiao Zhou, Douglas A Melton
The pancreas is made from two distinct components: the exocrine pancreas, a reservoir of digestive enzymes, and the endocrine islets, the source of the vital metabolic hormone insulin. Human islets possess limited regenerative ability; loss of islet β-cells in diseases such as type 1 diabetes requires therapeutic intervention. The leading strategy for restoration of β-cell mass is through the generation and transplantation of new β-cells derived from human pluripotent stem cells. Other approaches include stimulating endogenous β-cell proliferation, reprogramming non-β-cells to β-like cells, and harvesting islets from genetically engineered animals...
May 2018: Nature
https://www.readbyqxmd.com/read/29766024/integrating-hdad5-35-vectors-as-a-new-platform-for-hsc-gene-therapy-of-hemoglobinopathies
#4
Chang Li, Nikoletta Psatha, Hongjie Wang, Manvendra Singh, Himanshu Bhusan Samal, Wenli Zhang, Anja Ehrhardt, Zsuzsanna Izsvák, Thalia Papayannopoulou, André Lieber
We generated an integrating, CD46-targeted, helper-dependent adenovirus HDAd5/35++ vector system for hematopoietic stem cell (HSC) gene therapy. The ∼12-kb transgene cassette included a β-globin locus control region (LCR)/promoter driven human γ-globin gene and an elongation factor alpha-1 (EF1α)-mgmtP140K expression cassette, which allows for drug-controlled increase of γ-globin-expressing erythrocytes. We transduced bone marrow lineage-depleted cells from human CD46-transgenic mice and transplanted them into lethally irradiated recipients...
June 15, 2018: Molecular Therapy. Methods & Clinical Development
https://www.readbyqxmd.com/read/29764513/cellular-therapy-with-human-autologous-adipose-derived-adult-cells-of-stromal-vascular-fraction-for-alopecia-areata
#5
Rami Anderi, Nehman Makdissy, Albert Azar, Francine Rizk, Aline Hamade
BACKGROUND: Most common forms of hair loss (alopecia) are caused by aberrant hair follicle cycling and changes in hair follicle morphology. However, current treatments for alopecia do not specifically target these processes. Adipose-derived stromal vascular cells (ADSVCs) that can be harvested from fat cells are one of the latest breakthroughs in the aesthetic field. The potential use of stem cell-based therapies (SCBT) for the repair and regeneration of various tissues and organs offers a paradigm shift that may provide alternative therapeutic solutions, which can be applied to prevent hair loss...
May 15, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29756539/skin-regeneration-with-a-scaffold-of-predefined-shape-and-bioactive-peptide-hydrogels
#6
Heejung Im, Su Hee Kim, Soo Hyun Kim, Youngmee Jung
We developed a highly elastic customized scaffold for soft-tissue regeneration and combined them with bioactive hydrogels with stem-cell-inducing ability. This was done to mimic mechanical properties of native soft tissues and improve the viability of transplanted cells as well as efficiency of tissue regeneration. The proposed study was aimed at evaluating various characteristics of scaffolds and investigating their tissue regenerating ability. Finger shaped porous scaffolds were successfully fabricated by an indirect 3D printing of poly (L-lactide-co-ε-caprolactone) (PLCL) which provides a high elasticity for soft tissue engineering...
May 14, 2018: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29753677/multicenter-phase-1-2-application-of-adenovirus-specific-t-cells-in-high-risk-pediatric-patients-after-allogeneic-stem-cell-transplantation
#7
Winnie Ip, Juliana M F Silva, Hubert Gaspar, Arindam Mitra, Shreenal Patel, Kanchan Rao, Robert Chiesa, Persis Amrolia, Kimberly Gilmour, Gul Ahsan, Mary Slatter, Andrew R Gennery, Robert F Wynn, Paul Veys, Waseem Qasim
BACKGROUND: Adenovirus (ADV) reactivation can cause significant morbidity and mortality in children after allogeneic stem cell transplantation. Antiviral drugs can control viremia, but viral clearance requires recovery of cell-mediated immunity. METHOD: This study was an open-label phase 1/2 study to investigate the feasibility of generating donor-derived ADV-specific T cells (Cytovir ADV, Cell Medica) and to assess the safety of pre-emptive administration of ADV-specific T cells in high-risk pediatric patients after allogeneic hematopoietic stem cell transplantation (HSCT) to treat adenoviremia...
May 9, 2018: Cytotherapy
https://www.readbyqxmd.com/read/29704116/protocols-for-full-thickness-skin-wound-repair-using-prevascularized-human-mesenchymal-stem-cell-sheet
#8
Lei Chen, Daniel Radke, Shaohai Qi, Feng Zhao
Split thickness skin grafts (STSGs) are one of the standard treatments available for full thickness wound repair when full thickness grafts (FTGs) are not viable, such as in the case of wounds with large surface areas. The donor sites of STSGs may be harvested repeatedly, but STSG transplants are still limited by insufficient blood supply at the early stages of wound healing. Prevascularized human mesenchymal stem cell (hMSC) sheets may accelerate wound healing and improve regeneration by providing preformed vessel structures and angiogenic factors to overcome this limitation...
April 28, 2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29701160/non-pregnant-human-uterus-as-source-of-mesenchymal-stem-cells
#9
Noemi Eiro, Maria Fraile, Jose Schneider, Francisco Vizoso
Stem/progenitor cells for cell therapy and regenerative medicine should ideally be available in large numbers, after having been isolated using minimally invasive or non-invasive methodologies. Also, they should exhibit wide differentiation potential into multiple lineages, as well as capability to be used successfully in autologous or allogeneic transplantation, and all this in accordance with the applicable guidelines of good manufacturing practice. Thus, the identification and characterization of alternative sources of mesenchymal stem cells (MSCs) is of great importance...
April 26, 2018: Current Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29680669/exposing-mesenchymal-stem-cells-to-chondroitin-sulphated-proteoglycans-reduces-their-angiogenic-and-neuro-adhesive-paracrine-activity
#10
Chelsea R Wood, Ibtesam R T Al Delfi, John F Innes, Peter Myint, William E B Johnson
The multifactorial complexity of spinal cord injuries includes the formation of a glial scar, of which chondroitin sulphated proteoglycans (CSPG) are an integral component. Previous studies have shown CSPG to have inhibitory effects on endothelial and neuronal cell growth, highlighting the difficulty of spinal cord regeneration. Mesenchymal stem/stromal cells (MSC) are widely used a cell therapy, and there is mounting evidence for their angiogenic and neurotrophic paracrine properties. However, in vivo studies have observed poor engraftment and survival of MSC when injected into SCI...
April 19, 2018: Biochimie
https://www.readbyqxmd.com/read/29649413/neural-stem-cells-derived-directly-from-adipose-tissue
#11
Eric D Petersen, Jessica R Zenchak, Olivia V Lossia, Ute Hochgeschwender
Neural stem cells (NSCs) are characterized as self-renewing cell populations with the ability to differentiate into the multiple tissue types of the central nervous system. These cells can differentiate into mature neurons, astrocytes, and oligodendrocytes. This category of stem cells has been shown to be a promisingly effective treatment for neurodegenerative diseases and neuronal injury. Most treatment studies with NSCs in animal models use embryonic brain-derived NSCs. This approach presents both ethical and feasibility issues for translation to human patients...
April 16, 2018: Stem Cells and Development
https://www.readbyqxmd.com/read/29624731/a-novel-microsurgical-rodent-model-for-the-transplantation-of-engineered-cardiac-muscle-flap
#12
Richard Tee, Wayne Allan Morrison, Rodney J Dilley
BACKGROUND: The survival of engineered cardiac muscle 'grafts' to the epicardium is limited by vascularization post-transplantation in rat models. In this article, we describe the methodology of a novel rat model that allows for the transplantation of an engineered cardiac muscle flap (ECMF) onto the epicardium. MATERIALS AND METHODS: A total of 40 rats were used. Twenty-four neonatal rats were used to harvest cardiomyocytes. At week 1, ECMF were generated by seeding cardiomyocytes into the arteriovenous loop (AVL) tissue engineering chamber implanted into the right groin of adult rats (n = 8)...
April 6, 2018: Microsurgery
https://www.readbyqxmd.com/read/29605509/the-effects-of-lower-cd34-yields-after-lowe-dose-g-csf-induction-on-long-term-autologous-stem-cell-transplantation-outcome-a-single-center-study
#13
Mohammad Vaezi, Mohammad Shakouri, Maryam Souri, Mohammad Amin Setaredan, Seyed Asadollah Mossavi, Saeed Mohammadi, Kamran Alimoghaddam, Ardeshir Ghavamzadeh
Peripheral blood stem cell transplantation (PBSCT) is an effective treatment for hematological malignancies. Mobilization of peripheral blood stem cells performs in different ways among transplantation centers. Since the Effects of lower CD34+ cells dose after low dose G-CSF induction on autologous stem cell transplantation outcomes are not studied much, so this study was performed for this purpose. 735 autologous stem cell transplanted patients with diagnoses of multiple myeloma (n = 330), Hodgkin lymphoma (n = 200), non-Hodgkin lymphoma (n = 129), acute myeloid leukemia (n = 54) and solid tumors (n = 22) were retrospectively evaluated...
March 23, 2018: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/29596344/treatment-of-arsenite-intoxication-induced-peripheral-vasculopathy-with-mesenchymal-stem-cells
#14
Yi-Hung Chiang, Chai-Chin Lin, Yen-Chung Chen, Oscar K Lee
Arsenite (As), a notorious toxic metal, is ubiquitously distributed in the earth and poses a serious threat to human health. Histopathological lesions of As intoxication are known as thromboangiitis obliterans, which are resistant to current treatment and often lead to lower limb amputation. In this study, we attempt to find that treatment with mesenchymal stem cells (MSCs) may be effective for As-induced vasculopathy. We first conducted an in vitro study with a co-culture system containing human MSCs and human umbilical vein endothelial cells (HUVECs) and treated individual and co-cultured cells with various concentrations of arsenite...
March 29, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29576502/the-healthy-donor-profile-of-immunoregulatory-soluble-mediators-is-altered-by-stem-cell-mobilization-and-apheresis
#15
Guro Kristin Melve, Elisabeth Ersvaer, Kristin Paulsen Rye, Aymen Bushra Ahmed, Einar K Kristoffersen, Tor Hervig, Håkon Reikvam, Kimberley Joanne Hatfield, Øystein Bruserud
BACKGROUND: Peripheral blood stem cells from healthy donors mobilized by granulocyte colony-stimulating factor (G-CSF) and thereafter harvested by leukapheresis are commonly used for allogeneic stem cell transplantation. METHODS: Plasma levels of 38 soluble mediators (cytokines, soluble adhesion molecules, proteases, protease inhibitors) were analyzed in samples derived from healthy stem cell donors before G-CSF treatment and after 4 days, both immediately before and after leukapheresis...
March 22, 2018: Cytotherapy
https://www.readbyqxmd.com/read/29573222/concise-review-altered-versus-unaltered-amniotic-membrane-as-a-substrate-for-limbal-epithelial-cells
#16
REVIEW
Tor Paaske Utheim, Øygunn Aass Utheim, Panagiotis Salvanos, Catherine J Jackson, Stefan Schrader, Gerd Geerling, Amer Sehic
Limbal stem cell deficiency (LSCD) can result from a variety of corneal disorders, including chemical and thermal burns, infections, and autoimmune diseases. The symptoms of LSCD may include irritation, epiphora, blepharospasms, photophobia, pain, and decreased vision. There are a number of treatment options, ranging from nonsurgical treatments for mild LSCD to various forms of surgery that involve different cell types cultured on various substrates. Ex vivo expansion of limbal epithelial cells (LEC) involves the culture of LEC harvested either from the patient, a living relative, or a cadaver on a substrate in the laboratory...
March 23, 2018: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/29555414/medical-and-ethical-considerations-on-hematopoietic-stem-cells-mobilization-for-healthy-donors
#17
V Moalic-Allain
Hematopoietic stem cell transplantation is a common procedure potentially beneficial to many individuals with cancer, hematological, or inherited disorders, and has highlighted the need of related or unrelated donors to perform allograft. Donation of hematopoietic stem cells, either through bone marrow harvest or peripheral blood stem cell collection, is well-established and widespread. Over the past two decades, the peripheral blood stem cell collection by aphaeresis has become the main source of hematopoietic stem cells for transplantation, due to faster engraftment and practicability and lower risk of relapse for high-risk patients...
March 16, 2018: Transfusion Clinique et Biologique: Journal de la Société Française de Transfusion Sanguine
https://www.readbyqxmd.com/read/29536619/postnatal-periodontal-ligament-as-a-novel-adult-stem-cell-source-for-regenerative-corneal-cell-therapy
#18
Gary Hin-Fai Yam, Ericia Pei-Wen Teo, Melina Setiawan, Matthew J Lovatt, Nur Zahirah Binte M Yusoff, Matthias Fuest, Bee-Tin Goh, Jodhbir S Mehta
Corneal opacities are a leading cause of global blindness. They are conventionally treated by the transplantation of donor corneal tissue, which is, restricted by a worldwide donor material shortage and allograft rejection. Autologous adult stem cells with a potential to differentiate into corneal stromal keratocytes (CSKs) could offer a suitable choice of cells for regenerative cell therapy. Postnatal periodontal ligament (PDL) contains a population of adult stem cells, which has a similar embryological origin as CSK, that is cranial neural crest...
March 13, 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29515065/-efficacy-and-safety-of-biosimilar-filgrastim-for-autologous-peripheral-blood-stem-cell-harvest-and-transplantation-a-single-institutional-retrospective-analysis
#19
Masaki Iino, Takeo Yamamoto
Three biosimilar filgrastim products are currently available in Japan. Among these, the safety and efficacy of two imported drugs for autologous peripheral blood stem cell harvest (autoPBSCH) and autologous peripheral blood stem cell transplantation (autoPBSCT) have been studied widely; however, evidence of the safety and efficacy of domestically manufactured filgrastim is limited. Therefore, we compared the efficacy and safety of domestic biosimilar filgrastim (BF1, n=23) with those of originator filgrastim (OF, n=21) for autoPBSCH and autoPBSCT...
2018: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/29502978/combined-transplantation-of-mesenchymal-stem-cells-and-endothelial-progenitor-cells-restores-cavernous-nerve-injury-related-erectile-dysfunction
#20
Jia-Feng Fang, Xu-Na Huang, Xiao-Yan Han, Xi Ouyang, Lei Fan, Xin Zhao, Ze-Hong Chen, Hong-Bo Wei
BACKGROUND: Whether combined transplantation of mesenchymal stem cells (MSCs) and endothelial progenitor cells (EPCs) is more effective than transplantation of a single cell type in the restoration of erectile function is unknown. AIM: To investigate the effect of combined transplantation of MSCs and EPCs on restoration of erectile function in rats with cavernous nerve injury (CNI). METHODS: MSCs were isolated from human bone marrow and EPCs were isolated from human umbilical cord blood...
March 2018: Journal of Sexual Medicine
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