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https://www.readbyqxmd.com/read/28220264/treatment-of-stage-ii-medication-related-osteonecrosis-of-the-jaw-with-necrosectomy-and-autologous-bone-marrow-mesenchymal-stem-cells
#1
Pit Jacob Voss, Akihiko Matsumoto, Esteban Alvarado, Rainer Schmelzeisen, Fabian Duttenhöfer, Philipp Poxleitner
Treatment strategies for medication-related osteonecrosis of the jaw (MRONJ) remain controversial. Although the AAOMS suggests a conservative approach, a surgical management with necrosectomy is often required when conservative management has failed. Moreover, recent studies have shown promising results using an early stage surgical treatment. Over the past decade, cell-based bone regeneration utilizing bone marrow mesenchymal stem cells (MSCs) received increased attention. MSCs are known to promote wound healing and induce new bone formation in compromised tissue...
February 20, 2017: Odontology
https://www.readbyqxmd.com/read/28219836/donor-lymphocyte-infusion-for-relapsed-hematological-malignancies-after-unrelated-allogeneic-bone-marrow-transplantation-facilitated-by-the-japan-marrow-donor-program
#2
Toshihiro Miyamoto, Takahiro Fukuda, Marie Nakashima, Tomoko Henzan, Shinsuke Kusakabe, Naoki Kobayashi, Junichi Sugita, Takeshi Mori, Mineo Kurokawa, Shin-Ichiro Mori
To evaluate the safety and efficacy of donor lymphocyte infusion (DLI), we retrospectively analyzed 414 recipients who received unrelated DLI (UDLI) for the treatment of relapsed hematological malignancy after unrelated bone marrow transplantation (BMT). UDLI was administered for acute myelogenous leukemia (n=184), myelodysplastic syndrome (n=69), acute lymphocytic leukemia (n=57), chronic myelogenous leukemia (CML, n=36), lymphoid neoplasms (n=38), adult T-cell leukemia/lymphoma (n=18), and multiple myeloma (n=12)...
February 17, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28218738/adipogenic-niches-for-melanoma-cell-colonization-and-growth-in-bone-marrow
#3
Juan Wang, Guang-Liang Chen, Shan Cao, Ming-Chun Zhao, Yong-Qing Liu, Xiao-Xiang Chen, Cheng Qian
Bone marrow (BM) adipocytes are abundant in BM and may be involved in the process of bone metastasis. However, their behaviors in metastatic BM niches during bone metastasis have not been fully explored. In this study, intracardiac transplantation of B16-F10 melanoma cells into immunocompetent C57BL/6 mice was performed. Tibial marrow sections were stained with hematoxylin and eosin, Masson's trichrome, tartrate-resistant acid phosphatase, and fatty acid-binding protein 4 (FABP4) and analyzed using a histomorphometric system...
February 20, 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/28215056/an-analysis-of-blood-utilization-for-stem-cell-transplant-patients-in-a-tertiary-care-hospital
#4
Natasha Ali
Background and Objective: Haematopoietic stem cell transplant is a potentially curative treatment option in various benign and malignant haematological diseases. Patients undergoing stem cell transplant procedure require blood transfusion on a daily basis. Currently, there is paucity of data from developing countries on transfusion practices. This audit was undertaken to determine the consumption of packed red blood cells (PRBCs) transfusion in the bone marrow transplant unit of the Aga Khan University Hospital...
February 28, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/28210842/uric-acid-as-a-novel-biomarker-for-bone-marrow-function-and-incipient-hematopoietic-reconstitution-after-aplasia-in-patients-with-hematologic-malignancies
#5
Sebastian P Haen, Vicky Eyb, Nora Mirza, Aline Naumann, Andreas Peter, Markus W Löffler, Christoph Faul, Wichard Vogel, Wolfgang A Bethge, Hans-Georg Rammensee, Lothar Kanz, Martin Heni
PURPOSE: Prolonged aplasia and graft failure (GF) represent life-threatening complications after hematopoietic cell transplantation (HCT) requiring suitable biomarkers for early detection and differentiation between GF and poor graft function (PGF). Uric acid (UA) is a strong immunological danger signal. METHODS: Laboratory results were analyzed from patients undergoing either allogeneic or autologous HCT or induction chemotherapy for acute leukemia (n = 50 per group, n = 150 total)...
February 16, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28209562/vinexin-%C3%AE-ablation-inhibits-atherosclerosis-in-apolipoprotein-e-deficient-mice-by-inactivating-the-akt-nuclear-factor-%C3%AE%C2%BAb-inflammatory-axis
#6
Hongjing Guan, Wen-Lin Cheng, Junhong Guo, Meng-Lin Chao, Yan Zhang, Jun Gong, Xue-Yong Zhu, Zhi-Gang She, Zan Huang, Hongliang Li
BACKGROUND: Vinexin β is a novel adaptor protein that regulates cellular adhesion, cytoskeletal reorganization, signal transduction, and transcription; however, the exact role that vinexin β plays in atherosclerosis remains unknown. METHODS AND RESULTS: Immunoblot analysis showed that vinexin β expression is upregulated in the atherosclerotic lesions of both patients with coronary heart disease and hyperlipemic apolipoprotein E-deficient mice and is primarily localized in macrophages indicated by immunofluorescence staining...
February 16, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28196298/human-to-human-transmission-of-brucella-a-systematic-review
#7
REVIEW
Felipe F Tuon, Regina B Gondolfo, Natacha Cerchiari
OBJECTIVE: The most common form of transmitting human brucellosis is through contaminated food or direct contact with infected animals. Human-to-human transmission (HHT) has been described as isolated case reports. The aim of this systematic review was to describe all cases of HHT of human brucellosis reported in the medical literature. METHODS: A literature search was conducted using PubMed, Scopus and Scielo databases using specific search terms published until March 2016...
February 14, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28195232/hematopoietic-pannexin-1-function-is-critical-for-neuropathic-pain
#8
Janelle L Weaver, Sanja Arandjelovic, Gregory Brown, Suresh K Mendu, Michael S Schappe, Monica W Buckley, Yu-Hsin Chiu, Shaofang Shu, Jin K Kim, Joyce Chung, Julia Krupa, Vesna Jevtovic-Todorovic, Bimal N Desai, Kodi S Ravichandran, Douglas A Bayliss
Neuropathic pain symptoms respond poorly to available therapeutics, with most treated patients reporting unrelieved pain and significant impairment in daily life. Here, we show that Pannexin 1 (Panx1) in hematopoietic cells is required for pain-like responses following nerve injury in mice, and a potential therapeutic target. Panx1 knockout mice (Panx1(-/-)) were protected from hypersensitivity in two sciatic nerve injury models. Bone marrow transplantation studies show that expression of functional Panx1 in hematopoietic cells is necessary for mechanical hypersensitivity following nerve injury...
February 14, 2017: Scientific Reports
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
#9
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/28187784/let-7a-transfected-mesenchymal-stem-cells-ameliorate-monocrotaline-induced-pulmonary-hypertension-by-suppressing-pulmonary-artery-smooth-muscle-cell-growth-through-stat3-bmpr2-signaling
#10
Gesheng Cheng, Xingye Wang, Yongxin Li, Lu He
BACKGROUND: Cell-based gene therapy has become a subject of interest for the treatment of pulmonary arterial hypertension (PAH), a devastating disease characterized by pulmonary artery smooth muscle cell (PASMC) hyperplasia. Mesenchymal stem cells (MSCs) have been recently acknowledged as a potential cell vector for gene therapy. Here, we investigated the effect of MSC-based let-7a for PAH. METHODS: After isolation and identification of MSCs from rat bone marrow, cells were infected with recombinant adenovirus vector Ad-let-7a...
February 10, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28187777/gmp-conformant-on-site-manufacturing-of-a-cd133-stem-cell-product-for-cardiovascular-regeneration
#11
Anna Skorska, Paula Müller, Ralf Gaebel, Jana Große, Heiko Lemcke, Cornelia A Lux, Manuela Bastian, Frauke Hausburg, Nicole Zarniko, Sandra Bubritzki, Ulrike Ruch, Gudrun Tiedemann, Robert David, Gustav Steinhoff
BACKGROUND: CD133(+) stem cells represent a promising subpopulation for innovative cell-based therapies in cardiovascular regeneration. Several clinical trials have shown remarkable beneficial effects following their intramyocardial transplantation. Yet, the purification of CD133(+) stem cells is typically performed in centralized clean room facilities using semi-automatic manufacturing processes based on magnetic cell sorting (MACS®). However, this requires time-consuming and cost-intensive logistics...
February 10, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28177531/recruitment-of-bone-marrow-derived-cells-to-the-periodontal-ligament-via-the-stromal-cell-derived-factor-1-c-x-c-chemokine-receptor-type-4-axis
#12
M Kaku, M Kitami, J M Rosales Rocabado, T Ida, Y Akiba, K Uoshima
BACKGROUND/OBJECTIVES: The periodontal ligament (PDL) is a non-mineralized connective tissue that exists between the alveolar bone and root surface cementum and plays important roles in tooth function. The PDL harbors a remarkable reserve of multipotent stem cells, which maintain various types of cells. However, the sources of these stem cells, other than their developmental origin, are not well understood. MATERIAL AND METHODS: To elucidate the recruitment of bone marrow (BM)-derived stem cells in the PDL, green fluorescent protein (GFP)-expressing BM-derived cells were transplanted into the femoral BM of immunodeficient rats, and the distribution and expression of stem cell markers in the PDL were analyzed in vivo...
February 8, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28167301/non-invasive-tracking-of-injected-bone-marrow-mononuclear-cells-to-injury-and-implanted-biomaterials
#13
Richard P Tan, Bob S L Lee, Alex H P Chan, Sui Ching G Yuen, Juichien Hung, Steven G Wise, Martin K C Ng
: Biomaterial scaffolds enhancing the engraftment of transplanted bone-marrow mononuclear cells (BM-MNC) have enormous potential for tissue regeneration applications. However, development of appropriate materials is challenging given the precise microenvironments required to support BM-MNC engraftment and function. In this study, we have developed a non-invasive, real-time tracking model of injected BM-MNC engraftment to wounds and implanted biomaterial scaffolds. BM-MNCs, encoded with firefly luciferase and enhanced GFP reporter genes, were tail vein injected into subcutaneously wounded mice...
February 3, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28162930/a-randomized-study-of-autologous-bone-marrow-derived-stem-cells-in-pediatric-cardiomyopathy
#14
E Sian Pincott, Deborah Ridout, Margaret Brocklesby, Angus McEwan, Vivek Muthurangu, Michael Burch
BACKGROUND: Bone marrow mononuclear cell fraction has been used as therapy for dilated cardiomyopathy in adults. Although case series are reported, there are no randomized controlled studies in children. METHODS: We designed a randomized, crossover, controlled pilot study to determine safety and feasibility of intracoronary stem cell therapy in children. The primary safety end-point was freedom from death and transplantation or any complication that could be considered related to bone marrow injection or anesthesia (e...
January 5, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28146572/a-melanoma-lymph-node-metastasis-with-a-donor-patient-hybrid-genome-following-bone-marrow-transplantation-a-second-case-of-leucocyte-tumor-cell-hybridization-in-cancer-metastasis
#15
Greggory S LaBerge, Eric Duvall, Zachary Grasmick, Kay Haedicke, John Pawelek
BACKGROUND: Metastatic disease is the principal cause of mortality in cancer, yet the underlying mechanisms are not fully understood. Macrophage-cancer cell fusion as a cause of metastasis was proposed more than a century ago by German pathologist Prof. Otto Aichel. Since then this theory has been confirmed in numerous animal studies and recently in a patient with metastatic melanoma. METHODS: Here we analyzed tumor DNA from a 51-year-old man who, 8 years following an allogeneic BMT from his brother for treatment of chronic myelogenous leukemia (CML), developed a nodular malignant melanoma on the upper back with spread to an axillary sentinal lymph node...
2017: PloS One
https://www.readbyqxmd.com/read/28144574/current-management-of-talar-osteochondral-lesions
#16
REVIEW
Arianna L Gianakos, Youichi Yasui, Charles P Hannon, John G Kennedy
Osteochondral lesions of the talus (OLT) occur in up to 70% of acute ankle sprains and fractures. OLT have become increasingly recognized with the advancements in cartilage-sensitive diagnostic imaging modalities. Although OLT may be treated nonoperatively, a number of surgical techniques have been described for patients whom surgery is indicated. Traditionally, treatment of symptomatic OLT have included either reparative procedures, such as bone marrow stimulation (BMS), or replacement procedures, such as autologous osteochondral transplantation (AOT)...
January 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28135282/mesenchymal-cell-reprogramming-in-experimental-mplw515l-mouse-model-of-myelofibrosis
#17
Ying Han, Lanzhu Yue, Max Wei, Xiubao Ren, Zonghong Shao, Ling Zhang, Ross L Levine, Pearlie K Epling-Burnette
Myelofibrosis is an indicator of poor prognosis in myeloproliferative neoplasms (MPNs), but the precise mechanism(s) contributing to extracellular matrix remodeling and collagen deposition in the bone marrow (BM) niche remains unanswered. In this study, we isolated mesenchymal stromal cells (MSCs) from mice transplanted with wild-type thrombopoietin receptor (MPLWT) and MPLW515L retroviral-transduced bone marrow. Using MSCs derived from MPLW515-transplant recipients, excessive collagen deposition was maintained in the absence of the virus and neoplastic hematopoietic cells suggested that the MSCs were reprogrammed in vivo...
2017: PloS One
https://www.readbyqxmd.com/read/28132869/bone-marrow-derived-mesenchymal-stromal-cells-from-sickle-cell-disease-patients-display-intact-functionality
#18
Elizabeth O Stenger, Raghavan Chinnadurai, Shala Yuan, Marco Garcia, Dalia Arafat, Greg Gibson, Lakshmanan Krishnamurti, Jacques Galipeau
Hematopoietic cell transplantation (HCT) is the only cure for sickle cell disease (SCD), but engraftment remains challenging in patients lacking matched donors. Infusion of mesenchymal stromal cells (MSCs) at time of HCT may promote hematopoiesis and ameliorate graft-versus-host disease. Experimental murine models suggest MSC major histocompatibility complex compatibility with recipient impacts their in vivo function, suggesting autologous MSCs could be superior to third-party MSCs for promoting HCT engraftment...
January 26, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28132855/bone-marrow-derived-mesenchymal-stem-cells-expressing-thioredoxin-1-attenuate-bleomycin-induced-skin-fibrosis-and-oxidative-stress-in-scleroderma
#19
Miao Jiang, Yiwu Yu, Jingying Luo, Qingyun Gao, Lili Zhang, Qiangxiong Wang, Jingjun Zhao
Systemic sclerosis (SSc) is an autoimmune disorder that affects multiple organs. It is characterised by a thickening of the dermis and connective tissue caused by collagen accumulation, and vascular injuries that induce hypoxia. The present study investigated the therapeutic potential of bone marrow-derived mesenchymal stem cells (BMSCs) expressing thioredoxin 1 (Trx-1) in treating SSc-mediated skin disease following transplantation into a bleomycin-induced murine model. Mice with bleomycin-induced SSc were subcutaneously injected with BMSCs or Trx-1-overexpressing BMSCs and exposed to hypoxic conditions for 48 h...
January 26, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28124967/-a-rare-and-mortal-infection-agent-in-patients-with-hematological-malignancies-saprochaete-capitata
#20
Lale Aydın Kaynar, Zübeyde Nur Özkurt, Burcu Ülküden, Özlem Güzel Tunçcan, Gülbin Aygencel, Nalan Akyürek, Ayşe Kalkancı
Saprochaete capitata (formerly known as Geotrichum capitatum and Blastoschizomyces capitatus) is a rare invasive fungal agent that may lead to mortal clinical course in patients with hematological malignancies. This agent can be colonized in skin, lungs and intestines, and it can cause major opportunistic infections. Invasive systemic infections due to S.capitata have been reported in immunosuppressed patients. In this report, two patients with invasive S.capitata infections detected during the course of persistent neutropenic fever in acute leukemia, were presented...
October 2016: Mikrobiyoloji Bülteni
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