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https://www.readbyqxmd.com/read/28192253/hematopoietic-stem-cell-transplantation-using-preimplantation-genetic-diagnosis-and-hla-typing-for-hla-matched-sibling-donor-a-turkish-multicenter-study
#1
Emin Kurekci, Alphan Küpesiz, Sema Anak, Gülyüz Öztürk, Orhan Gürsel, Serap Aksoylar, Talia Ileri, Barış Kuşkonmaz, Ibrahim Eker, Mualla Cetin, Gülsün Tezcan Karasu, Zühre Kaya, Tunç Fışgın, Mehmet Ertem, Savaş Kansoy, Mehmet Akif Yeşilipek
Preimplantation genetic diagnosis involves the diagnosis of a genetic disorder in embryos obtained through in vitro fertilization, selection of healthy embryos, and transferring them to the mother's uterus. Preimplantation genetic diagnosis has been used not only to avoid the risk of having an affected child, but also by using HLA matching together, it offers preselection of potential HLA-genoidentical healthy donor progeny for an affected sibling, who requires bone marrow transplantation. Here, we share the hematopoietic stem cell transplantation results of 52 patients with different benign and malign hematological or metabolic diseases or immunodeficiencies, whose donors were their siblings borned with this technique in Turkey since 2008...
February 10, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28182733/pyruvate-dehydrogenase-kinase-1-is-essential-for-transplantable-mouse-bone-marrow-hematopoietic-stem-cell-and-progenitor-function
#2
Camilla Halvarsson, Pernilla Eliasson, Jan-Ingvar Jönsson
BACKGROUND: Accumulating evidence suggests that hypoxic areas in the bone marrow are crucial for maintenance of hematopoietic stem cells (HSCs) by supporting a quiescent state of cell cycle and regulating the transplantation capacity of long-term (LT)-HSCs. In addition, HSCs seem to express a metabolic profile of energy production away from mitochondrial oxidative phosphorylation in favor of glycolysis. At oxygen deprivation, hypoxia inducible factor 1α (HIF-1α) is known to induce glycolytic enzymes as well as suppressing mitochondrial energy production by inducing pyruvate dehydrogenase kinase 1 (Pdk1) in most cell types...
2017: PloS One
https://www.readbyqxmd.com/read/28176272/effects-of-combined-raav-mediated-tgf-%C3%AE-and-sox9-gene-transfer-and-overexpression-on-the-metabolic-and-chondrogenic-activities-in-human-bone-marrow-aspirates
#3
Ke Tao, Ana Rey-Rico, Janina Frisch, Jagadeesh Kumar Venkatesan, Gertrud Schmitt, Henning Madry, Jianhao Lin, Magali Cucchiarini
BACKGROUND: Transplantation of genetically modified bone marrow concentrates is an attractive approach to conveniently activate the chondrogenic differentiation processes as a means to improve the intrinsic repair capacities of damaged articular cartilage. METHODS: Human bone marrow aspirates were co-transduced with recombinant adeno-associated virus (rAAV) vectors to overexpress the pleiotropic transformation growth factor beta (TGF-β) and the cartilage-specific transcription factor sox9 as a means to enhance the chondroreparative processes in conditions of specific lineage differentiation...
December 2017: Journal of Experimental Orthopaedics
https://www.readbyqxmd.com/read/28174669/cell-therapy-for-liver-disease-using-bioimaging-rats
#4
REVIEW
Junko Haga, Shin Enosawa, Eiji Kobayashi
Advances in stem cell research suggest that cell therapy is a potential alternative to liver transplantation. The use of individualized and minimally invasive cell therapy is desirable to avoid rejection and reduce patient burden. While allo-hepatocyte transplantation has been performed for metabolic hepatic disease, auto-bone marrow transplantation (BMT) has shifted toward mesenchymal stem cells (MSCs) transplantation for liver cirrhosis. In this article, an overview of cell transplantation research for liver disease is provided through our recent rat studies...
January 8, 2017: Cell Medicine
https://www.readbyqxmd.com/read/28170175/genetic-modification-of-human-peripheral-blood-aspirates-using-recombinant-adeno-associated-viral-vectors-for-articular-cartilage-repair-with-a-focus-on-chondrogenic-transforming-growth-factor-%C3%AE-gene-delivery
#5
Janina Frisch, Patrick Orth, Jagadeesh Kumar Venkatesan, Ana Rey-Rico, Gertrud Schmitt, Dieter Kohn, Henning Madry, Magali Cucchiarini
Transplantation of genetically modified peripheral blood aspirates that carry chondrogenically competent progenitor cells may offer new, convenient tools to treat articular cartilage lesions compared with the more complex and invasive application of bone marrow concentrates or of bone marrow-derived mesenchymal stem cells. Here, we show that recombinant adeno-associated viral (rAAV) vectors are powerful gene vehicles capable of successfully targeting primary human peripheral blood aspirates in a stable and safe manner, allowing for an efficient and long-term transgene expression in such samples (up to 63 days with use of a lacZ reporter gene and for at least 21 days with application of the pleiotropic, chondrogenic factor transforming growth factor-β [TGF-β])...
January 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28161839/osteoprotegerin-and-uremic-osteoporosis-in-chronic-hemodialysis-patients
#6
Diana Moldovan, Crina Rusu, Alina Potra, Ioan Moldovan, Ioan Mihai Patiu, Mirela Gherman-Caprioara, Ina Maria Kacso
INTRODUCTION: Osteoprotegerin (OPG) is a powerful inhibitor of osteoclast activity, and it plays an important role in bone metabolism. In hemodialysis (HD) patients, the relationship between OPG and bone mineral density (BMD) is important, but remains unclear yet. The study objective was to assess the OPG role related to uremic osteoporosis in HD patients. METHODS: This cross-sectional study has been realized on a cohort of 63 chronic HD patients. INCLUSION CRITERIA: elderly prevalent HD patients with an age over 55 years old...
February 4, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28148490/characterisation-of-osteophytes-as-an-autologous-bone-graft-source-an-experimental-study-in-vivo-and-in-vitro
#7
K Ishihara, K Okazaki, T Akiyama, Y Akasaki, Y Nakashima
OBJECTIVES: Osteophytes are products of active endochondral and intramembranous ossification, and therefore could theoretically provide significant efficacy as bone grafts. In this study, we compared the bone mineralisation effectiveness of osteophytes and cancellous bone, including their effects on secretion of growth factors and anabolic effects on osteoblasts. METHODS: Osteophytes and cancellous bone obtained from human patients were transplanted onto the calvaria of severe combined immunodeficient mice, with Calcein administered intra-peritoneally for fluorescent labelling of bone mineralisation...
February 2017: Bone & Joint Research
https://www.readbyqxmd.com/read/28114966/tgf-%C3%AE-1-induced-differentiation-of-shed-into-functional-smooth-muscle-cells
#8
Jian Guang Xu, Shao Yue Zhu, Boon Chin Heng, Waruna Lakmal Dissanayaka, Cheng Fei Zhang
BACKGROUND: Adequate vascularization is crucial for supplying nutrition and discharging metabolic waste in freshly transplanted tissue-engineered constructs. Obtaining the appropriate building blocks for vascular tissue engineering (i.e. endothelial and mural cells) is a challenging task for tissue neovascularization. Hence, we investigated whether stem cells from human exfoliated deciduous teeth (SHED) could be induced to differentiate into functional vascular smooth muscle cells (vSMCs)...
January 23, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28078791/effects-of-stem-cell-transplantation-on-bone-mineral-density-and-vitamin-d-status-in-children-with-thalassemia-major
#9
Dilek Gürlek Gökçebay, Namik Ozbek, Arzu Yazal Erdem, Vildan Culha, Nese Yarali, Pamir Isik, Zekai Avci, Fatih Azik, Fatma Demirel, Bahattin Tunc
HSCT is a curative treatment in TM, but conditioning and immunosuppressive treatment may affect bone metabolism. In this retrospective study, we aimed to compare BMD, vitamin D status, and growth in children with TM who underwent HSCT to those in children with TD TM. Twenty-three children with TM who underwent HSCT (mean age 7.1 years [1.03-14.7]) and 24 children with TD thalassemia (mean age 9.8 years [1.6-14]) were recruited. Lumbar spine BMD of TD thalassemia patients was higher than those in patients who had HSCT at both baseline and second-year assessments (P=...
January 12, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28066800/cd36-deficiency-impairs-the-small-intestinal-barrier-and-induces-subclinical-inflammation-in-mice
#10
Vincenza Cifarelli, Stoyan Ivanov, Yan Xie, Ni-Huiping Son, Brian T Saunders, Terri A Pietka, Trevor M Shew, Jun Yoshino, Sinju Sundaresan, Nicholas O Davidson, Ira J Goldberg, Andrew E Gelman, Bernd H Zinselmeyer, Gwendalyn J Randolph, Nada A Abumrad
BACKGROUND & AIMS: CD36 has immuno-metabolic actions and is abundant in the small intestine on epithelial, endothelial and immune cells. We examined the role of CD36 in gut homeostasis using mice null for CD36 (CD36KO) and with CD36 deletion specific to enterocytes (Ent-CD36KO) or endothelial cells (EC-CD36KO). METHODS: Intestinal morphology was evaluated using immunohistochemistry and electron microscopy (EM). Intestinal inflammation was determined from neutrophil infiltration and expression of cytokines, toll-like receptors and COX-2...
January 2017: Cellular and Molecular Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28061861/oxidative-status-predicts-quality-in-human-mesenchymal-stem-cells
#11
Alessandro Bertolo, Simona Capossela, Gion Fränkl, Martin Baur, Tobias Pötzel, Jivko Stoyanov
BACKGROUND: Human bone marrow-derived mesenchymal stem cells (MSC) are adult progenitor cells with great potential for application in cell-based therapies. From a cell-based therapy perspective, there are two limitations to MSC use: (1) these therapies require large numbers of cells, and long-term expansion of MSC in vitro promotes replicative senescence; and (2) patient variability is a challenge for defining MSC quality standards for transplantation. This study aimed to determine whether low or high oxidative status of MSC correlate with changes in cell expansion and differentiation potentials...
January 6, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28044208/hepatic-vagus-nerve-regulates-kupffer-cell-activation-via-%C3%AE-7-nicotinic-acetylcholine-receptor-in-nonalcoholic-steatohepatitis
#12
Takahiro Nishio, Kojiro Taura, Keiko Iwaisako, Yukinori Koyama, Kazutaka Tanabe, Gen Yamamoto, Yukihiro Okuda, Yoshinobu Ikeno, Kenji Yoshino, Yosuke Kasai, Masayuki Okuno, Satoru Seo, Takaki Sakurai, Masataka Asagiri, Etsuro Hatano, Shinji Uemoto
BACKGROUND: Nonalcoholic fatty liver disease ranges from simple steatosis to nonalcoholic steatohepatitis (NASH). Kupffer cells play a central role in promoting hepatic inflammation, which leads to the development of NASH. We investigated the anti-inflammatory effect of hepatic vagus-mediated stimulation of the α7 nicotinic acetylcholine receptor (α7nAChR) on Kupffer cells in NASH pathogenesis. METHODS: Wild-type (WT) mice undergoing hepatic vagotomy (HV) were fed a methionine- and choline-deficient (MCD) diet for 1 week...
January 2, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28006991/efficacy-of-autologous-bone-marrow-derived-mesenchymal-stem-cell-and-mononuclear-cell-transplantation-in-type-2-diabetes-mellitus-a-randomized-placebo-controlled-comparative-study
#13
Shobhit Bhansali, Pinaki Dutta, Vinod Kumar, Mukesh Kumar Yadav, Ashish Jain, Sunder Mudaliar, Shipra Bhansali, Ratti Ram Sharma, Vivekanand Jha, Neelam Marwaha, Niranjan Khandelwal, Anand Srinivasan, Naresh Sachdeva, Meredith Hawkins, Anil Bhansali
Drugs targeting β-cells have provided new options in the management of T2DM; however, their role in β-cell regeneration remains elusive. The recent emergence of cell-based therapies such as autologous bone marrow-derived mesenchymal stem cells (ABM-MSCs) and mononuclear cells (ABM-MNCs) seems to offer a pragmatic approach to augment β-cell function/mass. This study aims to examine the efficacy and safety of ABM-MSC and ABM-MNC transplantation in T2DM and explores alterations in glucose-insulin homeostasis by metabolic studies...
January 24, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/27998642/bone-histomorphometry-in-de-novo-renal-transplant-recipients-indicates-a-further-decline-in%C3%A2-bone-resorption-1-year-posttransplantation
#14
Pieter Evenepoel, Geert J Behets, Liesbeth Viaene, Patrick C D'Haese
Renal transplantation is believed to have a major impact on bone health. The present prospective observational bone biopsy study aimed to define the natural history of bone histomorphometry parameters in contemporaneous de novo renal transplant recipients. Paired bone biopsies were performed at the time of transplantation and at one-year posttransplantation in an unselected cohort of 36 patients referred for deceased kidney replacement. Parameters of mineral metabolism and circulating bone turnover markers were monitored as well...
December 17, 2016: Kidney International
https://www.readbyqxmd.com/read/27990445/voriconazole-induced-periostitis-enthesopathy-in-solid-organ-transplant-patients-case-reports
#15
Monica Sircar, Camille Kotton, David Wojciechowski, Kassem Safa, Hannah Gilligan, Eliot Heher, Winfred Williams, Ravi Thadhani, Nina Tolkoff-Rubin
BACKGROUND: Voriconazole is frequently used to treat fungal infections in solid organ transplant patients. Recently, there have been reports suggesting that prolonged voriconazole therapy may lead to periostitis. AIM: Here we present two cases of voriconazole-induced periostitis in solid organ transplant patients. CASE PRESENTATION: Voriconazole was given to two transplant patients-one with a liver transplant and the second with a heart transplant, to treat their fungal infections...
November 2016: Journal of biosciences and medicines
https://www.readbyqxmd.com/read/27934558/fibroblast-growth-factor-23-in-postrenal-transplant-an-often-forgotten-hormone
#16
Fateme Shamekhi Amiri, Mohammad Reza Khatami
Fibroblast growth factor 23 is likely to be the most important regulator of phosphate homeostasis, which mediates its functions through fibroblast growth factor receptors and the coreceptor Klotho. In addition to reducing expression of the sodium-phosphate cotransporters NPT2a and NPT2c in the proximal tubules, fibroblast growth factor 23 inhibits renal 1α-hydroxylase and stimulates 24-hydroxylase and appears to reduce parathyroid hormone secretion in short-term studies. Fibroblast growth factor 23 synthesis and secretion by osteocytes and osteoblasts are upregulated through 1,25-dihydroxyvitamin D3 and through an increased dietary phosphate intake...
December 2016: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/27931083/the-therapeutic-potential-of-t-cell-metabolism
#17
REVIEW
A Zarrinpar, S J Bensinger
Transplant rejection mediated by the adaptive immune system remains a major barrier to achieving long-term tolerance and graft survival. Emerging evidence indicates that lymphocytes rapidly shift their metabolic programs in response to activation, co-stimulatory, and cytokine signals to support required effector cell differentiation and function. These observations have led to the hypothesis that manipulating the metabolic programs of immune cells could serve as a powerful therapeutic strategy for attenuating deleterious immune responses and facilitating durable tolerance in the setting of allogeneic solid organ or bone marrow transplant...
December 8, 2016: American Journal of Transplantation
https://www.readbyqxmd.com/read/27927037/clinical-hepatotoxicity-associated-with-antifungal-agents
#18
Ioannis Kyriakidis, Athanasios Tragiannidis, Silke Munchen, Andreas H Groll
Invasive fungal diseases (IFDs) are a leading cause of morbidity and mortality among immunocompromised patients with bone marrow failure syndromes, hematological malignancies, hematopoietic stem cell transplantation (HSCT), those admitted in intensive care units (ICUs) and those with prolonged febrile neutropenia. IFDs occur in a setting of multiple morbidities and are associated with case fatality rates between 30 and 70%. Along with the development of classes and compounds, the last two decades have seen substantial improvements in the prevention and management of these infections and an overall increased use of antifungal agents...
December 16, 2016: Expert Opinion on Drug Safety
https://www.readbyqxmd.com/read/27892944/veno-occlusive-disease-sinusoidal-obstruction-syndrome-after-haematopoietic-stem-cell-transplantation-middle-east-north-africa-regional-consensus-on-prevention-diagnosis-and-management
#19
A H Al Jefri, H Abujazar, A Al-Ahmari, A Al Rawas, Z Al Zahrani, A Alhejazi, M A Bekadja, A Ibrahim, M Lahoucine, S Ousia, A Bazarbachi
Veno-occlusive disease/sinusoidal obstruction syndrome (VOD/SOS) of the liver is a serious, early complication of haematopoietic stem cell transplantation (HSCT), severe and very severe forms of which are associated with a high mortality rate. A wide variety of patient, disease and treatment-related risk factors for VOD/SOS have been identified. Several bodies have published recommendations for the diagnosis, prevention and management of VOD/SOS following HSCT. A group of regional experts have developed a consensus statement on the diagnosis, prevention and management of VOD/SOS in the Middle East and North Africa region to help in the management of HSCT patients in the region...
November 28, 2016: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/27871893/clinical-effects-of-pre-transplant-serum-25-hydroxyvitamin-d-level-on-post-transplant-immunologic-and-non-immunologic-outcomes-in-kidney-transplant-recipients
#20
Tae Hyun Ban, Jeong Ho Kim, Han Beol Jang, Yoon Seo Lee, Bum Soon Choi, Cheol Whee Park, Chul Woo Yang, Yong-Soo Kim, Byung Ha Chung
BACKGROUND: The aim of this study was to investigate the effects of pre-transplant serum 25-hydroxyvitamin D (25(OH)D) level on non-immunologic and immunologic aspects of post-transplant clinical outcomes in kidney transplant recipients (KTRs). METHODS: We investigated 174 KTRs with low immunologic risk at baseline. We divided the patients into three groups according to baseline serum 25(OH)D level and compared the post-transplant clinical outcomes of acute rejection, infectious complications, and osteoporosis among the groups...
November 18, 2016: Transplant Immunology
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