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Stem cells transplantation

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https://www.readbyqxmd.com/read/28732247/repairing-sciatic-nerve-injury-with-an-epo-loaded-nerve-conduit-and-sandwiched-in-strategy-of-transplanting-mesenchymal-stem-cells
#1
Wei Zhang, Lihai Zhang, Jianheng Liu, Licheng Zhang, Jian Zhang, Peifu Tang
Transplantation of a biosynthetic nerve conduit carrying neuro-protective cytokines is promising for treating peripheral nerve injury. Here we developed a novel strategy for repairing sciatic nerve injury by EPO-loaded Chitosan nerve conduit (EPO/Chi) and sandwiched-in transplantation of mesenchymal stem cells (MSCs). Then, the beneficial effect of EPO/Chi + MSCs on nerve regeneration was also further investigated by in vitro cellular experiments. In vivo experiment showed that combination of EPO-loaded Chitosan nerve conduit with MSCs could significantly accelerate nerve healing and improve morphological repair...
July 11, 2017: Biomaterials
https://www.readbyqxmd.com/read/28732241/generation-of-skeletal-myogenic-progenitors-from-human-pluripotent-stem-cells-using-non-viral-delivery-of-minicircle-dna
#2
Jaemin Kim, Vanessa K P Oliveira, Ami Yamamoto, Rita C R Perlingeiro
Currently, the most efficient and promising approach for generating large numbers of engraftable human skeletal myogenic progenitors from pluripotent stem cells requires the conditional in vitro overexpression of PAX7 using lentiviral vectors. Because a non-integrating approach would be preferable to eliminate or minimize the risk associated with random genomic integration, here we investigate whether transient expression of PAX7 using minicircle DNA would enable the generation of functional pluripotent stem cell-derived myogenic progenitors, equivalent to those generated by lentivirus...
July 12, 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28731908/prognostic-factors-in-lung-transplantation-after-hematopoietic-stem-cell-transplantation
#3
Toyofumi F Chen-Yoshikawa, Seiichiro Sugimoto, Takeshi Shiraishi, Masato Minami, Yasushi Matsuda, Masayuki Chida, Sumiko Maeda, Akihiro Aoyama, Yoshinori Okada, Meinoshin Okumura, Akinori Iwasaki, Shinichiro Miyoshi, Takahiro Oto, Hiroshi Date
BACKGROUND: Lung transplantation is the final life-saving option for patients with pulmonary complications after hematopoietic stem cell transplantation (HSCT). Patients undergoing HSCT for hematologic diseases are thought to be high-risk candidates for lung transplantation; therefore, few lung transplants are performed for these patients, and few studies have been reported. This study aimed to describe the characteristics and outcomes of lung transplantation in patients with pulmonary complications after HSCT...
July 21, 2017: Transplantation
https://www.readbyqxmd.com/read/28731615/the-prevalence-of-ccr5-%C3%AE-32-mutation-in-a-cohort-of-saudi-stem-cell-donors
#4
M Alarifi, F Al-Amro, A Alalwan, A Al-Turki, H Fakhoury, N Atallah, M Al Muallimi, M Al-Balwi, M ALzahrani, A Alaskar, A Hajeer, D Jawdat
CCR5 is a chemokine receptor that also was found to be used by HIV as a co-receptor for entering target cells. A 32 bp deletion was described in certain people that rendered CCR5 non-functional. The mutant allele CCR5-Δ32 has been shown to prevent HIV infection. In addition, stem cell transplantation with the CCR5-Δ32 homozygous genotype can lead to clearance of HIV infection. In this study, our aim was to investigate the frequency of CCR5-Δ32 mutation in a cohort of stem cell donors from cord blood bank and stem cell donor registry...
July 21, 2017: HLA
https://www.readbyqxmd.com/read/28731588/human-leukocyte-antigen-distribution-and-genomic-ancestry-in-brazilian-patients-with-sickle-cell-disease
#5
M C F da Silva-Malta, P S Rodrigues, L W Zuccherato, F C B de Souza, E M F L Domingues, V R Souza, E Tarazona-Santos, M L Martins
Hematopoietic stem-cell transplantation (HSCT) is currently the only established curative treatment for sickle cell disease (SCD), but is limited by donor availability. Ethnicity is thought to have an impact on the complications experienced by patients that undergo HSCT and on the likelihood of identifying an HLA matched donor. In the present study, we investigated the genomic ancestry and the distribution of HLA allele groups in Brazilian patients with SCD, compared these HLA profiles to worldwide populations and evaluate the availability of HLA-matched donors...
July 21, 2017: HLA
https://www.readbyqxmd.com/read/28731526/drug-discovery-and-development-for-rare-genetic-disorders
#6
REVIEW
Wei Sun, Wei Zheng, Anton Simeonov
Approximately 7,000 rare diseases affect millions of individuals in the United States. Although rare diseases taken together have an enormous impact, there is a significant gap between basic research and clinical interventions. Opportunities now exist to accelerate drug development for the treatment of rare diseases. Disease foundations and research centers worldwide focus on better understanding rare disorders. Here, the state-of-the-art drug discovery strategies for small molecules and biological approaches for orphan diseases are reviewed...
July 21, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28731172/comparison-of-the-neuronal-differentiation-abilities-of-bone-marrow%C3%A2-derived-and-adipose-tissue%C3%A2-derived-mesenchymal-stem-cells
#7
Yani Zheng, Chao Huang, Fang Liu, Haiyan Lin, Xiangqun Yang, Zhiying Zhang
Bone marrow‑derived mesenchymal stem cells (BMSCs) and adipose tissue‑derived mesenchymal stem cells (ADSCs) are able to differentiate into neuron‑like cells when exposed to small molecule compounds, however the specific differences in their neuronal differentiation abilities remain to be fully elucidated. The present study aimed to compare the neuronal differentiation abilities of BMSCs and ADSCs. BMSCs and ADSCs from the same Sprague Dawley rats were isolated and cultured for use. The proliferation capacity was revealed using a cell counting method...
July 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28731141/botulinum-toxin-a-improves-adipose-tissue-engraftment-by-promoting-cell-proliferation-adipogenesis-and-angiogenesis
#8
Qi Tang, Chang Chen, Xiaqi Wang, Wei Li, Yan Zhang, Muyao Wang, Wei Jing, Hang Wang, Weihua Guo, Weidong Tian
Adipose tissue engraftment has become a well-established therapy in plastic and reconstructive surgery used to restore age-related or injury-related soft tissue loss. However, the unpredictable absorption rates limit its further application. Some clinicians have noted that more optimal aesthetic results are achieved when botulinum toxin A (BoNTA) is applied prior to adipose tissue grafting. In the present study, we transplanted allogeneic adipose tissue treated with or without BoNTA in SD rats in vivo. We subsequently evaluated the survival rate (weight, volume, apoptosis and cellular integrity) and revascularization of the adipose tissue...
July 19, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28730556/stem-cell-derived-retinal-pigment-epithelium-the-role-of-pigmentation-as-maturation-marker-and-gene-expression-profile-comparison-with-human-endogenous-retinal-pigment-epithelium
#9
A Bennis, J G Jacobs, L A E Catsburg, J B Ten Brink, C Koster, R O Schlingemann, J van Meurs, T G M F Gorgels, P D Moerland, V M Heine, A A Bergen
In age-related macular degeneration (AMD) the retinal pigment epithelium (RPE) deteriorates, leading to photoreceptor decay and severe vision loss. New therapeutic strategies aim at RPE replacement by transplantation of pluripotent stem cell (PSC)-derived RPE. Several protocols to generate RPE have been developed where appearance of pigmentation is commonly used as indicator of RPE differentiation and maturation. It is, however, unclear how different pigmentation stages reflect developmental stages and functionality of PSC-derived RPE cells...
July 21, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/28730381/pooled-human-serum-increases-regenerative-potential-of-in-vitro-expanded-stem-cells-from-human-extracted-deciduous-teeth
#10
Nazmul Haque, Noor Hayaty Abu Kasim
In regenerative therapy, in vitro expansion of stem cells is critical to obtain a significantly higher number of cells for successful engraftment after transplantation. However, stem cells lose its regenerative potential and enter senescence during in vitro expansion. In this study, the influence of foetal bovine serum (FBS) and pooled human serum (pHS) on the proliferation, morphology and migration of stem cells from human extracted deciduous teeth (SHED) was compared. SHED (n = 3) was expanded in KnockOut DMEM supplemented with either pHS (pHS-SM) or FBS (FBS-SM)...
July 21, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28730239/wnt-and-nodal-signaling-simultaneously-induces-definitive-endoderm-differentiation-of-mouse-embryonic-stem-cells
#11
Wa Zhong, Yu Lai, Tao Yu, Zhong Sheng Xia, Yu Hong Yuan, Hui Ouyang, Ti Dong Shan, Qi Kui Chen
Induced differentiation of definitive endoderm (DE) from embryonic stem cells (ESCs) has been the recent focus of studies investigating regeneration and transplantation of organs of the digestive system. Poor cell survival is the most important challenge to DE differentiation from ESCs. This study aimed to optimize culture conditions to promote the differentiation of mouse ESCs into DE, and to investigate the roles of the Wnt and Nodal signaling pathways in the DE differentiation. The mouse ESCs were treated with or without leukemia inhibitory factor, Wnt3a and Activin A alone or together, and examined the DE differentiation by the DE marker CXCR4 and the ESC marker Oct4...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28729726/heart-regeneration-and-repair-after-myocardial-infarction-translational-opportunities-for-novel-therapeutics
#12
REVIEW
Thomas J Cahill, Robin P Choudhury, Paul R Riley
Current therapies for heart failure after myocardial infarction are limited and non-curative. Although regenerative approaches are receiving significant attention, clinical efforts that involve transplantation of presumed stem and progenitor cells have largely failed to deliver. Recent studies of endogenous heart regeneration in model organisms, such as zebrafish and neonatal mice, are yielding mechanistic insights into the roles of cardiomyocyte proliferation, resident stem cell niches, neovascularization, the immune system and the extracellular matrix...
July 21, 2017: Nature Reviews. Drug Discovery
https://www.readbyqxmd.com/read/28729299/notch2-blockade-enhances-hematopoietic-stem-cell-mobilization-and-homing
#13
Weihuan Wang, Shuiliang Yu, Jay Myers, Yiwei Wang, William W Xin, Marwah Alkabri, Alison W Xin, Ming Li, Alex Y Huang, Wei Xin, Christian W Siebel, Hillard M Lazarus, Lan Zhou
Despite use of newer approaches, some patients being considered for autologous hematopoietic cell transplantation may mobilize limited numbers of hematopoietic progenitor cells into blood, precluding use of the procedure, or being placed at increased risk for complications due to slow hematopoietic reconstitution. Developing more efficacious hematopoietic progenitor cell mobilization regimens and strategies may enhance the mobilization process and improve patient outcome. Although Notch signaling is dispensable for homeostasis of adult hematopoietic stem cells, Notch-ligand adhesive interaction maintains hematopoietic stem cell quiescence and niche retention...
July 20, 2017: Haematologica
https://www.readbyqxmd.com/read/28729120/hematopoietic-stem-cell-transplantation-for-multiple-myeloma
#14
REVIEW
Heather L Koniarczyk, Christina Ferraro, Teresa Miceli
OBJECTIVE: To provide an overview of the hematopoietic stem cell transplantation (HSCT) process specific to patients with multiple myeloma (MM) and their caregivers. DATA SOURCES: Research studies, book chapters, websites, expert knowledge, and journal articles. CONCLUSION: Although not curative, autologous HSCT is an important, manageable treatment modality, and continues to be a standard of care in MM for those patients who are eligible...
July 17, 2017: Seminars in Oncology Nursing
https://www.readbyqxmd.com/read/28728493/treating-breast-cancer-with-cell-based-approaches-an-overview
#15
Susanna Gallo, Dario Sangiolo, Fabrizio Carnevale Schianca, Massimo Aglietta, Filippo Montemurro
Breast cancer is the most common malignancy in women. Despite there being considerable progress in the treatment of this disease, metastatic dissemination is still considered an incurable condition at the present time, causing 500,000 deaths worldwide every year. Although most of the research efforts have been focused on pharmacological approaches, over the last three decades, the use of bone marrow and peripheral blood-derived cell therapy approaches have been attempted and developed. Areas covered: This review will briefly address cell therapy for breast cancer, including autologous stem cell transplantations for overcoming the myelosuppressive effects of high-dose chemotherapy, allogeneic stem cell transplants and adoptive immunotherapy using bone-marrow derived T-cells...
July 20, 2017: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/28728478/psychosocial-response-to-new-onset-diabetes-as-a-long-term-effect-of-allogeneic-hematopoietic-stem-cell-transplantation
#16
Jill M Olausson, Lauren Clark, Janice M Morse, Marilyn Hammer, Nancy Allen, Marcia Grant
Currently, little information is available to guide health care practitioners on how to facilitate positive outcomes in individuals who develop new-onset diabetes after allogeneic hematopoietic stem cell transplantation (allo HSCT) for treatment of hematological cancers. Results from this constructivist grounded theory study provide a theoretical framework explaining the psychosocial process of change that middle-age and older adults experience when developing new-onset diabetes in this context. Two predominant factors influenced this change: treatment burden and perception of diabetes...
July 1, 2017: Qualitative Health Research
https://www.readbyqxmd.com/read/28728454/quantification-of-marrow-hematogones-following-autologous-stem-cell-transplant-in-adult-patients-with-plasma-cell-myeloma-or-diffuse-large-b-cell-lymphoma-and-correlation-with-outcome
#17
Victor Santiago, Aleksandr Lazaryan, Brian McClune, Robert W McKenna, Elizabeth L Courville
In this retrospective study, we quantified the hematogone (normal B-lineage precursor) population by flow cytometric immunophenotyping in post-transplant bone marrow biopsy specimens from adult patients who received an autologous stem cell transplant for either plasma cell myeloma (n = 57) or diffuse large B-cell lymphoma (n = 73). The majority of patients (80%) had <5% marrow hematogones post-transplant. Extreme (>10%) hematogone percentages were quite rare, seen in only four patients, and were not associated with disease progression...
July 21, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28728274/-a-retrospective-study-of-10-cases-of-post-transplant-bronchiolitis-obliterans
#18
J J Chai, T Liu, B Q Cai, H D Zhu
Objective: To analyze the clinical features of bronchiolitis obliterans syndrome (BOS) in patients with allogeneic hematopoietic stem cell transplantation (HSCT). Methods: This retrospective study included patients who underwent allogeneic HSCT from January 1998 to December 2016. The clinical features, radiological manifestations and treatment of clinically proven BOS were reviewed. Results: Of 681 patients who experienced HSCT, 10(1.47%) met the diagnostic criteria. The duration of BOS onset after transplantation was 5-48 months, averaging (18±15) months...
July 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28727771/randomized-controlled-trial-on-the-effects-of-a-supervised-high-intensity-exercise-program-in-patients-with-a-hematologic-malignancy-treated-with-autologous-stem-cell-transplantation-results-from-the-exist-study
#19
Saskia Persoon, Mai J M ChinAPaw, Laurien M Buffart, Roberto D K Liu, Pierre Wijermans, Harry R Koene, Monique C Minnema, Pieternella J Lugtenburg, Erik W A Marijt, Johannes Brug, Frans Nollet, Marie José Kersten
BACKGROUND: This single blind, multicenter randomized controlled trial aimed to evaluate the effectiveness of a supervised high intensity exercise program on physical fitness and fatigue in patients with multiple myeloma or lymphoma recently treated with autologous stem cell transplantation. METHODS: 109 patients were randomly assigned to the 18-week exercise intervention or the usual care control group. The primary outcomes included physical fitness (VO2peak and Wpeak determined using a cardiopulmonary exercise test; grip strength and the 30s chair stand test) and fatigue (Multidimensional Fatigue Inventory) and were assessed prior to randomization and after completion of the intervention or at similar time points for the control group...
2017: PloS One
https://www.readbyqxmd.com/read/28726797/multiple-myeloma
#20
REVIEW
Shaji K Kumar, Vincent Rajkumar, Robert A Kyle, Mark van Duin, Pieter Sonneveld, María-Victoria Mateos, Francesca Gay, Kenneth C Anderson
Multiple myeloma is a malignancy of terminally differentiated plasma cells, and patients typically present with bone marrow infiltration of clonal plasma cells and monoclonal protein in the serum and/or urine. The diagnosis of multiple myeloma is made when clear end-organ damage attributable to the plasma cell proliferative disorder or when findings that suggest a high likelihood of their development are present. Distinguishing symptomatic multiple myeloma that requires treatment from the precursor stages of monoclonal gammopathy of undetermined significance and smouldering multiple myeloma is important, as observation is the standard for those conditions...
July 20, 2017: Nature Reviews. Disease Primers
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