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Stem cell therapy

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https://www.readbyqxmd.com/read/27936464/refractory-testicular-germ-cell-tumors-are-highly-sensitive-to-the-second-generation-dna-methylation-inhibitor-guadecitabine
#1
Costantine Albany, Mary P Hever-Jardine, Katherine M von Herrmann, Christina Y Yim, Janice Tam, Joshua M Warzecha, Leah Shin, Sarah E Bock, Brian S Curran, Aneeq S Chaudhry, Fred Kim, George E Sandusky, Pietro Taverna, Sarah J Freemantle, Brock C Christensen, Lawrence H Einhorn, Michael J Spinella
Testicular germ cell tumors (TGCTs) are the most common cancers of young males. A substantial portion of TGCT patients are refractory to cisplatin. There are no effective therapies for these patients, many of whom die from progressive disease. Embryonal carcinoma (EC) are the stem cells of TGCTs. In prior in vitro studies we found that EC cells were highly sensitive to the DNA methyltransferase inhibitor, 5-aza deoxycytidine (5-aza). Here, as an initial step in bringing demethylation therapy to the clinic for TGCT patients, we evaluated the effects of the clinically optimized, second generation demethylating agent guadecitabine (SGI-110) on EC cells in an animal model of cisplatin refractory testicular cancer...
December 7, 2016: Oncotarget
https://www.readbyqxmd.com/read/27936076/angiogenic-capacity-of-periodontal-ligament-stem-cells-pretreated-with-deferoxamine-and-or-fibroblast-growth-factor-2
#2
Jessica Ratajczak, Petra Hilkens, Pascal Gervois, Esther Wolfs, Reinhilde Jacobs, Ivo Lambrichts, Annelies Bronckaers
Periodontal ligament stem cells (PDLSCs) represent a good source of multipotent cells for cell-based therapies in regenerative medicine. The success rate of these treatments is severely dependent on the establishment of adequate vasculature in order to provide oxygen and nutrients to the transplanted cells. Pharmacological preconditioning of stem cells has been proposed as a promising method to augment their therapeutic efficacy. In this study, the aim was to improve the intrinsic angiogenic properties of PDLSCs by in vitro pretreatment with deferoxamine (DFX; 100μM), fibroblast growth factor-2 (FGF-2; 10ng/mL) or both substances combined...
2016: PloS One
https://www.readbyqxmd.com/read/27935867/the-bromodomain-inhibitor-otx015-mk-8628-exerts-anti-tumor-activity-in-triple-negative-breast-cancer-models-as-single-agent-and-in-combination-with-everolimus
#3
Ramiro Vázquez, María E Riveiro, Lucile Astorgues-Xerri, Elodie Odore, Keyvan Rezai, Eugenio Erba, Nicolò Panini, Andrea Rinaldi, Ivo Kwee, Luca Beltrame, Mohamed Bekradda, Esteban Cvitkovic, Francesco Bertoni, Roberta Frapolli, Maurizio D'Incalci
Triple-negative breast cancer (TNBC) is an aggressive and heterogeneous subgroup of breast tumors clinically defined by the lack of estrogen, progesterone and HER2 receptors, limiting the use of the targeted therapies employed in other breast malignancies. Recent evidence indicates that c-MYC is a key driver of TNBC. The BET-bromodomain inhibitor OTX015 (MK-8628) has potent antiproliferative activity accompanied by c-MYC down-regulation in several tumor types, and has demonstrated synergism with the mTOR inhibitor everolimus in different models...
December 7, 2016: Oncotarget
https://www.readbyqxmd.com/read/27935576/acute-lymphoblastic-leukemia-relapsing-after-first-line-pediatric-inspired-therapy-a-retrospective-graall-study
#4
A Desjonquères, P Chevallier, X Thomas, F Huguet, T Leguay, M Bernard, J-O Bay, E Tavernier, A Charbonnier, F Isnard, M Hunault, P Turlure, M Renaud, J-N Bastié, C Himberlin, S Lepretre, B Lioure, V Lhéritier, V Asnafi, K Beldjord, M Lafage-Pochitaloff, M C Béné, N Ifrah, H Dombret
The outcome of adult patients with Philadelphia chromosome-negative acute lymphoblastic leukemia (Ph- ALL) relapsing after pediatric-inspired front-line therapy is ill known. Here 229 relapsing Ph- ALL younger adults (18-63 years) treated within the Group for Research on Adult Acute Lymphoblastic Leukemia (GRAALL)-2003/-2005 trials were considered. Salvage regimens consisted of potentially curative therapies in 194 cases, low-intensity therapies in 21, allogeneic stem cell transplant (allo-SCT) in 6 and best supportive care in 8...
December 9, 2016: Blood Cancer Journal
https://www.readbyqxmd.com/read/27935095/alteration-of-neurotrophic-factors-after-transplantation-of-bone-marrow-derived-lin-ve-stem-cell-in-nmda-induced-mouse-model-of-retinal-degeneration
#5
Neeru Jindal, Avijit Banik, Sudesh Prabhakar, Kim Vaiphie, Akshay Anand
Retinal ganglion cell layer (RGCs) is one of the important layers of retina, depleted in Glaucoma. Loss of RGC neurons is a major cellular mechanism involved in its pathogenesis resulting in severe vision loss. Stem cell therapy has emerged as a potential strategy to arrest the apoptotic loss of RGCs and also replace the degenerative cells in damaged retina. Here we have investigated the incorporation and survival of mouse bone marrow derived Lin-ve stem cells in N-methyl-D-aspartate (NMDA) induced mouse model of retinal degeneration...
December 9, 2016: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/27934940/accelerated-craniofacial-bone-regeneration-through-dense-collagen-gel-scaffolds-seeded-with-dental-pulp-stem-cells
#6
Frédéric Chamieh, Anne-Margaux Collignon, Benjamin R Coyac, Julie Lesieur, Sandy Ribes, Jérémy Sadoine, Annie Llorens, Antonino Nicoletti, Didier Letourneur, Marie-Laure Colombier, Showan N Nazhat, Philippe Bouchard, Catherine Chaussain, Gael Y Rochefort
Therapies using mesenchymal stem cell (MSC) seeded scaffolds may be applicable to various fields of regenerative medicine, including craniomaxillofacial surgery. Plastic compression of collagen scaffolds seeded with MSC has been shown to enhance the osteogenic differentiation of MSC as it increases the collagen fibrillary density. The aim of the present study was to evaluate the osteogenic effects of dense collagen gel scaffolds seeded with mesenchymal dental pulp stem cells (DPSC) on bone regeneration in a rat critical-size calvarial defect model...
December 9, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27934912/bix01294-an-inhibitor-of-histone-methyltransferase-induces-autophagy-dependent-differentiation-of-glioma-stem-like-cells
#7
Iwona Anna Ciechomska, Piotr Przanowski, Judyta Jackl, Bartosz Wojtas, Bozena Kaminska
Glioblastoma (GBM) contains rare glioma stem-like cells (GSCs) with capacities of self-renewal, multi-lineage differentiation, and resistance to conventional therapy. Drug-induced differentiation of GSCs is recognized as a promising approach of anti-glioma therapy. Accumulating evidence suggests that unique properties of stem cells depend on autophagy. Here we demonstrate that BIX01294, an inhibitor of a G9a histone methyltransferase (introducing H3K9me2 and H3K27me3 repressive marks) triggers autophagy in human glioma cells...
December 9, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27934864/an-updated-view-of-hypothalamic-vascular-pituitary-unit-function-and-plasticity
#8
REVIEW
Paul Le Tissier, Pauline Campos, Chrystel Lafont, Nicola Romanò, David J Hodson, Patrice Mollard
The discoveries of novel functional adaptations of the hypothalamus and anterior pituitary gland for physiological regulation have transformed our understanding of their interaction. The activity of a small proportion of hypothalamic neurons can control complex hormonal signalling, which is disconnected from a simple stimulus and the subsequent hormone secretion relationship and is dependent on physiological status. The interrelationship of the terminals of hypothalamic neurons and pituitary cells with the vasculature has an important role in determining the pattern of neurohormone exposure...
December 9, 2016: Nature Reviews. Endocrinology
https://www.readbyqxmd.com/read/27934561/various-regimens-of-total-body-irradiation-for-hematopoietic-stem-cell-transplant
#9
Naoya Ishibashi, Toshiya Maebayashi, Takuya Aizawa, Masakuni Sakaguchi, Osamu Abe, Kazuyoshi Sakanishi, Yuji Endoh, Tsutomu Saito, Jiro Kawamori, Yoshiaki Tanaka
OBJECTIVES: We aimed to evaluate the safety of total body irradiation before bone marrow transplant. MATERIALS AND METHODS: We analyzed 110 patients (65 male, 45 female) who underwent total body irradiation for hematopoietic stem cell transplant between May 1998 and March 2013. Median age at total body irradiation was 17 years (range, 1-62 y). Median observation time was 777 days (range, 31-5494 d). Initial diagnoses were acute lymphoblastic leukemia (24 patients), acute myeloid leukemia (26 patients), chronic myeloid leukemia (7 patients), myelodysplastic syndrome (8 patients), malignant lymphoma (13 patients), mucopolysaccharidosis (12 patients), neuroblastoma (10 patients), and other diseases (10 patients)...
December 2016: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/27933352/intracochlear-drug-delivery-in%C3%A2-combination-with-cochlear-implants-current-aspects
#10
S K Plontke, G Götze, T Rahne, A Liebau
Local drug application to the inner ear offers a number of advantages over systemic delivery. Local drug therapy currently encompasses extracochlear administration (i. e., through intratympanic injection), intracochlear administration (particularly for gene and stem cell therapy), as well as various combinations with auditory neurosensory prostheses, either evaluated in preclinical or clinical studies, or off-label. To improve rehabilitation with cochlear implants (CI), one focus is the development of drug-releasing electrode carriers, e...
December 8, 2016: HNO
https://www.readbyqxmd.com/read/27933316/systemic-therapy-with-oncolytic-myxoma-virus-cures-established-residual-multiple-myeloma-in-mice
#11
Eric Bartee, Mee Y Bartee, Bjarne Bogen, Xue-Zhong Yu
Multiple myeloma is an incurable malignancy of plasma B-cells. Traditional chemotherapeutic regimes often induce initial tumor regression; however, virtually all patients eventually succumb to relapse caused by either reintroduction of disease during autologous transplant or expansion of chemotherapy resistant minimal residual disease. It has been previously demonstrated that an oncolytic virus known as myxoma can completely prevent myeloma relapse caused by reintroduction of malignant cells during autologous transplant...
2016: Molecular Therapy Oncolytics
https://www.readbyqxmd.com/read/27933299/strategy-to-prime-the-host-and-cells-to-augment-therapeutic-efficacy-of-progenitor-cells-for-patients-with-myocardial-infarction
#12
REVIEW
Jeehoon Kang, Tae-Won Kim, Jin Hur, Hyo-Soo Kim
Cell therapy in myocardial infarction (MI) is an innovative strategy that is regarded as a rescue therapy to repair the damaged myocardium and to promote neovascularization for the ischemic border zone. Among several stem cell sources for this purpose, autologous progenitors from bone marrow or peripheral blood would be the most feasible and safest cell-source. Despite the theoretical benefit of cell therapy, this method is not widely adopted in the actual clinical practice due to its low therapeutic efficacy...
2016: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/27932791/migration-and-invasion-of-drug-resistant-lung-adenocarcinoma-cells-are-dependent-on-mitochondrial-activity
#13
Ji Hoon Jeon, Dong Keon Kim, Youngmi Shin, Hee Yeon Kim, Bomin Song, Eun Young Lee, Jong Kwang Kim, Hye Jin You, Heesun Cheong, Dong Hoon Shin, Seong-Tae Kim, Jae-Ho Cheong, Soo Youl Kim, Hyonchol Jang
A small proportion of cancer cells have stem-cell-like properties, are resistant to standard therapy and are associated with a poor prognosis. The metabolism of such drug-resistant cells differs from that of nearby non-resistant cells. In this study, the metabolism of drug-resistant lung adenocarcinoma cells was investigated. The expression of genes associated with oxidative phosphorylation in the mitochondrial membrane was negatively correlated with the prognosis of lung adenocarcinoma. Because the mitochondrial membrane potential (MMP) reflects the functional status of mitochondria and metastasis is the principal cause of death due to cancer, the relationship between MMP and metastasis was evaluated...
December 9, 2016: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/27932474/recent-developments-in-stem-and-progenitor-cell-therapy-for-cardiac-repair
#14
John Zhao, Shahab Ghafghazi, Abdur Rahman Khan, Talha Ahmad Farid, Joseph B Moore
No abstract text is available yet for this article.
December 9, 2016: Circulation Research
https://www.readbyqxmd.com/read/27932392/digital-gene-expression-profiling-analysis-of-dna-repair-pathways-in-colon-cancer-stem-population-of-ht29-cells
#15
Wenxue Wang, Guoxiu Zhang, Jing Yang, Huan Gu, Lei Ding, Haijing Yu, Min Yu, Qinghua Cui, Xinglai Ji, Meizhang Li
Cancer stem cells (CSCs) contribute to the relapse and development of new neoplasm lesions. While most available clinical approaches, such as chemical and radiation therapies, will kill the majority of cancer cells, they do not kill them all. Some resisting cells, like CSCs, are able to survive due to their excellent self-maintaining capabilities, even in challenging environments. In the present study, we investigated the mRNA level of DNA repair genes of colon CSCs from the HT29 cell line in response to single-strand damage and double-strand breaks, as well as the evident upregulation of key genes in base excision repair, mismatch repair, non-homologous end-joining, and homologous recombination pathways in these cells...
December 7, 2016: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/27931749/-hereditary-epidermolysis-bullosa-french-national-guidelines-pnds-for-diagnosis-and-treatment
#16
C Chiaverini, E Bourrat, J Mazereeuw-Hautier, S Hadj-Rabia, C Bodemer, J-P Lacour
Hereditary epidermolysis bullosa (EB) is a heterogeneous group of rare genetic diseases characterized by fragile skin and/or mucous membrane, and it may be either local or generalized. It is caused by mutations in genes encoding different proteins involved mainly in the structure and function of the dermal-epidermal junction. Nineteen genes have so far been identified. They are classified by level of skin cleavage (from top to bottom) into four groups: EB simplex, junctional EB, dystrophic EB and Kindler syndrome...
December 5, 2016: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/27931534/advances-in-clinical-immunology-in-2015
#17
REVIEW
Javier Chinen, Luigi D Notarangelo, William T Shearer
Advances in clinical immunology in the past year included the report of practice parameters for the diagnosis and management of primary immunodeficiencies to guide the clinician in the approach to these relatively uncommon disorders. We have learned of new gene defects causing immunodeficiency and of new phenotypes expanding the spectrum of conditions caused by genetic mutations such as a specific regulator of telomere elongation (RTEL1) mutation causing isolated natural killer cell deficiency and mutations in ras-associated RAB (RAB27) resulting in immunodeficiency without albinism...
December 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27931511/myod-overexpressed-equine-adipose-derived-stem-cells-enhanced-myogenic-differentiation-potential
#18
Soo-Eun Sung, Meeyul Hwang, Ah-Young Kim, Eun-Mi Lee, Eun-Joo Lee, Su-Kyeong Hwang, Shin-Yoon Kim, Hong-Kyun Kim, Kyu-Shik Jeong
Mesenchymal stem cells could potentially be used in the clinical treatment of muscle disorders and muscle regeneration. Adipose-derived stem cells (ADSCs) can be easily isolated from adipose tissue, as opposed to stem cells of other tissues. We believe that cell therapy using ADSCs could be applied to muscle disorders in horses and other species. We sought to improve the myogenic differentiation potential of equine ADSCs (eqADSCs) using a MyoD lentiviral vector. MyoD lentiviruses were transduced into eqADSCs and selected using puromycin...
November 2016: Cell Transplantation
https://www.readbyqxmd.com/read/27931507/hiv-non-nucleoside-reverse-transcriptase-inhibitor-efavirenz-reduces-neural-stem-cell-proliferation-in-vitro-and-in-vivo
#19
Jingji Jin, Bethany Grimmig, James Izzo, Lecia A M Brown, Charles Hudson, Adam J Smith, Jun Tan, Paula C Bickford, Brian Giunta
The prevalence of HIV-associated neurocognitive disorders (HAND) remains high despite combination antiretroviral therapy (cART). There is evidence that neural stem cells (NSCs) can migrate to sites of brain injury such as those caused by inflammation and oxidative stress, which are pathological features of HAND. Thus, reductions in NSCs may contribute to HAND pathogenesis. Since the HIV non-nucleoside reverse transcriptase inhibitor efavirenz (EFV) has previously been associated with cognitive deficits and promotion of oxidative stress pathways, we examined its effect on NSCs in vitro as well as in C57BL/6J mice...
November 2016: Cell Transplantation
https://www.readbyqxmd.com/read/27931506/neural-stem-cells-derived-from-human-parthenogenetic-stem-cells-engraft-and-promote-recovery-in-a-nonhuman-primate-model-of-parkinsons-disease
#20
Rodolfo Gonzalez, Ibon Garitaonandia, Maxim Poustovoitov, Tatiana Abramihina, Caleb McEntire, Ben Culp, Jordan Attwood, Alexander Noskov, Trudy Christiansen-Weber, Marwa Khater, Sergio Mora-Castilla, Cuong To, Andrew Crain, Glenn Sherman, Andrey Semechkin, Louise C Laurent, John D Elsworth, John Sladek, Evan Y Snyder, D Eugene Redmond, Russell A Kern
Cell therapy has attracted considerable interest as a promising therapeutic alternative for patients with Parkinsons disease (PD). Clinical studies have shown that grafted fetal neural tissue can achieve considerable biochemical and clinical improvements in PD. However, the source of fetal tissue grafts is limited and ethically controversial. Human parthenogenetic stem cells offer a good alternative because they are derived from unfertilized oocytes without destroying potentially viable human embryos and can be used to generate an unlimited supply of neural cells for transplantation...
November 2016: Cell Transplantation
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