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Transplant medicine

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https://www.readbyqxmd.com/read/28533168/prospects-for-therapeutic-mitochondrial-transplantation
#1
REVIEW
Jenna L Gollihue, Alexander G Rabchevsky
Mitochondrial dysfunction has been implicated in a multitude of diseases and pathological conditions- the organelles that are essential for life can also be major players in contributing to cell death and disease. Because mitochondria are so well established in our existence, being present in all cell types except for red blood cells and having the responsibility of providing most of our energy needs for survival, then dysfunctional mitochondria can elicit devastating cellular pathologies that can be widespread across the entire organism...
May 19, 2017: Mitochondrion
https://www.readbyqxmd.com/read/28532627/regenerative-medicine-in-hearing-recovery
#2
REVIEW
Edi Simoni, Giulia Orsini, Milvia Chicca, Simone Bettini, Valeria Franceschini, Alessandro Martini, Laura Astolfi
Hearing loss, or deafness, affects 360 million people worldwide of which about 32 million are children. Deafness is irreversible when it involves sensory hair cell death because the regenerative ability of these cells is lost in mammals after embryo development. The therapeutic strategies for deafness include hearing aids and/or implantable devices. However, not all patients are eligible or truly benefit from these medical devices. Regenerative medicine based on stem cell application could play a role in both improvement of extant medical devices and in vivo recovery of auditory function by regeneration of inner ear cells and neurons...
May 19, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28529134/direct-reprogramming-epigenetics-and-cardiac-regeneration
#3
REVIEW
Shota Kurotsu, Takeshi Suzuki, Masaki Ieda
The discovery of induced pluripotent stem cells (iPSCs) has revolutionized regenerative medicine. Autologous iPSCs can be generated by introducing 4 stem cell-specific factors (Oct4, Sox2, Klf4, c-Myc) into fibroblasts. iPSCs can propagate indefinitely and differentiate into clinically important cell types including cardiomyocytes, in vitro. The iPSC-derived cardiomyocytes represent a promising source of cells for cell-based therapeutic approaches for cardiac regeneration. However, there are several challenges in the clinical application of iPSCs: tumorigenicity of immature cells, poor survival of the transplanted myocardial cells, and cost and efficacy of this therapeutic approach...
May 18, 2017: Journal of Cardiac Failure
https://www.readbyqxmd.com/read/28526628/heparin-based-hydrogels-induce-human-renal-tubulogenesis-in-vitro
#4
Heather M Weber, Mikhail V Tsurkan, Valentina Magno, Uwe Freudenberg, Carsten Werner
Dialysis or kidney transplantation is the only therapeutic option for end stage renal disease. Accordingly, there is a large unmet clinical need for new causative therapeutic treatments. Obtaining robust models that mimic the complex nature of the human kidney is a critical step in the development of new therapeutic strategies. Here we establish a synthetic in vitro human renal tubulogenesis model based on a tunable glycosaminoglycan-hydrogel platform. In this system, renal tubulogenesis can be modulated by the adjustment of hydrogel mechanics and degradability, growth factor signaling, and the presence of insoluble adhesion cues, potentially providing new insights for regenerative therapy...
May 16, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28523560/stem-cell-technology-for-epi-genetic-brain-disorders
#5
Renzo J M Riemens, Edilene S Soares, Manel Esteller, Raul Delgado-Morales
Despite the enormous efforts of the scientific community over the years, effective therapeutics for many (epi)genetic brain disorders remain unidentified. The common and persistent failures to translate preclinical findings into clinical success are partially attributed to the limited efficiency of current disease models. Although animal and cellular models have substantially improved our knowledge of the pathological processes involved in these disorders, human brain research has generally been hampered by a lack of satisfactory humanized model systems...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28518214/immune-monitoring-as-prerequisite-for-transplantation-tolerance-trials
#6
REVIEW
Katayoun Behnam Sani, Birgit Sawitzki
Ever since its first application in clinical medicine, scientists have urged to induce tolerance towards foreign allogeneic transplants and thus avoid rejection by the recipient's immune system. This would circumvent chronic use of immunosuppressive drugs (IS) and thus avoid development of IS-induced side effects, which are contributing to the still unsatisfactory long-term graft and patient survival after solid organ transplantation. Although manifold strategies of tolerance induction have been described in preclinical models, only three therapeutic approaches have been successfully utilized in a still small number of patients...
May 18, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28514976/working-despite-having-influenza-like-illness-results-of-an-anonymous-survey-of-healthcare-providers-who-care-for-transplant-recipients
#7
Sherif B Mossad, Abhishek Deshpande, Sarah Schramm, Xiaobo Liu, Michael B Rothberg
OBJECTIVE To compare the rates of and reasons for presenteeism associated with influenza-like illness (ILI) among healthcare professionals (HCPs) caring for hospitalized inpatient transplant recipients and internal medicine patients. DESIGN We designed a 10-question anonymous survey in which ILI was defined as fever (>37.8°C) and cough and/or sore throat and ILI B was defined as fever (>37.8°C) or cough or sore throat; both definitions were considered in the absence of another known cause. SETTING Tertiary-care center...
May 18, 2017: Infection Control and Hospital Epidemiology
https://www.readbyqxmd.com/read/28512560/the-start-up-of-the-first-hematopoietic-stem-cell-transplantation-center-in-the-iraqi-kurdistan-a-capacity-building-cooperative-project-by-the-hiwa-cancer-hospital-sulaymaniyah-and-the-italian-agency-for-development-cooperation-an-innovative-approach
#8
Ignazio Majolino, Dosti Othman, Attilio Rovelli, Dastan Hassan, Luqman Rasool, Michele Vacca, Nigar Abdalrahman, Chra Abdullah, Zhalla Ahmed, Dlir Ali, Kosar Ali, Chiara Broggi, Cinzia Calabretta, Marta Canesi, Gloria Ciabatti, Claudia Del Fante, Elisabetta De Sapio, Giovanna Dore, Andrea Frigato, Marcela Gabriel, Francesco Ipsevich, Harem Kareem, Dana Karim, Rosa Leone, Tavan Mahmood, Annunziata Manna, Maria Speranza Massei, Andrea Mastria, Dereen Mohammed, Rebar Mohammed, Khoshnaw Najmaddin, Diana Noori, Angelo Ostuni, Angelo Palmas, Marco Possenti, Ali Qadir, Giorgio Real, Rebwar Shrif, Caterina Valdatta, Stefania Vasta, Marta Verna, Mariangela Vittori, Awder Yousif, Francesco Zallio, Alessandro Calisti, Sergio Quattrocchi, Corrado Girmenia
We describe the entire process leading to the start-up of a hematopoietic stem cell transplantation center at the Hiwa Cancer Hospital, in the city of Sulaymaniyah, Kurdistan Iraqi Region. This capacity building project was funded by the Italian Development Cooperation Agency and implemented with the support of the volunteer work of Italian professionals, either physicians, nurses, biologists and technicians. The intervention started in April 2016, was based exclusively on training and coaching on site, that represent a significant innovative approach, and led to a first autologous transplant in June 2016 and to the first allogeneic transplant in October...
2017: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/28512290/evolution-of-drug-resistant-acinetobacter-baumannii-after-dcd-renal-transplantation
#9
Hong Jiang, Luxi Cao, Lihui Qu, Tingting Qu, Guangjun Liu, Rending Wang, Bingjue Li, Yuchen Wang, Chaoqun Ying, Miao Chen, Yingying Lu, Shi Feng, Yonghong Xiao, Junwen Wang, Jianyong Wu, Jianghua Chen
Infection after renal transplantation remains a major cause of morbidity and death, especially infection from the extensively drug-resistant bacteria, A. baumannii. A total of fourteen A. baumannii isolates were isolated from the donors' preserved fluid from DCD (donation after cardiac death) renal transplantation and four isolates in the recipients' draining liquid at the Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, from March 2013 to November 2014. An outbreak of A...
May 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28511664/yields-and-chondrogenic-potential-of-primary-synovial-mesenchymal-stem-cells-are-comparable-between-rheumatoid-arthritis-and-osteoarthritis-patients
#10
Yuji Kohno, Mitsuru Mizuno, Nobutake Ozeki, Hisako Katano, Keiichiro Komori, Shizuka Fujii, Koji Otabe, Masafumi Horie, Hideyuki Koga, Kunikazu Tsuji, Mikio Matsumoto, Haruka Kaneko, Yuji Takazawa, Takeshi Muneta, Ichiro Sekiya
BACKGROUND: Mesenchymal stem cells derived from the synovial membrane (synovial MSCs) are a candidate cell source for regenerative medicine of cartilage and menisci due to their high chondrogenic ability. Regenerative medicine can be expected for RA patients with the inflammation well-controlled as well as OA patients and transplantation of synovial MSCs would also be a possible therapeutic treatment. Some properties of synovial MSCs vary dependent on the diseases patients have, and whether or not the pathological condition of RA affects the chondrogenesis of synovial MSCs remains controversial...
May 16, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28510115/application-of-decellularized-tissue-scaffolds-in-ovarian-tissue-transplantation
#11
Enes Taylan, Kutluk Oktay
In tissue engineering, decellularized scaffolds have been proved to have remarkable capacity to promote regeneration in various organs such as kidney, heart, lung, and liver. Marrying the field of cryobiology and reproductive medicine resulted in considerable progress and breakthroughs, which led to the emergence of ovarian tissue cryopreservation and transplantation as a promising option for fertility preservation. Here we describe an innovative application of decellularized tissue scaffolds as a regenerative platform for reconstruction of ovarian grafts for auto-transplantation...
May 17, 2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28509371/quantitative-assessment-of-sialo-glycoproteins-and-n-glycans-during-cardiomyogenic-differentiation-of-human-induced-pluripotent-stem-cells
#12
Sarah Anna Konze, Samanta Cajic, Astrid Oberbeck, René Hennig, Andreas Pich, Erdmann Rapp, Falk Buettner
Human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) may be used in regenerative medicine for individualized tissue transplants in future. For application in patients, the generated CMs have to be highly pure and well characterized. To overcome the prevalent scarcity of CM-specific markers, we quantitatively assessed cell surface exposed sialo-glycoproteins and N-glycans of hiPSCs, CM progenitors and CMs derived thereof. Applying a combination of metabolic labeling and specific sialo-glycoprotein capture, we could highly enrich and quantify membrane proteins during cardiomyogenic differentiation...
May 16, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28508004/tacrolimus-associated-dilated-cardiomyopathy-in-adult-patient-after-orthotopic-liver-transplant
#13
Jennifer McLeod, Stephanie Wu, Luanda Grazette, Anna Sarcon
This report presents a case of tacrolimus cardiotoxicity in an adult patient who received tacrolimus immunosuppression for orthotopic liver transplant (OLT). Tacrolimus-associated cardiotoxicity has been described in the literature, however this is the first case to document the development of a dilated cardiomyopathy in a patient shortly after initiating tacrolimus therapy post transplant. With the growing use of tacrolimus in transplant medicine, this case report expands the literature of tacrolimus cardiotoxicity and can aid clinicians in the evaluation and management of patients exposed to this form of immunosuppression...
April 2017: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/28503549/learning-from-mother-nature-innovative-tools-to-boost-endogenous-repair-of-critical-or-difficult-to-heal-large-tissue-defects
#14
REVIEW
Ranieri Cancedda, Sveva Bollini, Fiorella Descalzi, Maddalena Mastrogiacomo, Roberta Tasso
For repair of chronic or difficult-to-heal tissue lesions and defects, major constraints exist to a broad application of cell therapy and tissue engineering approaches, i.e., transplantation of "ex vivo" expanded autologous stem/progenitor cells, alone or associated with carrier biomaterials. To enable a large number of patients to benefit, new strategies should be considered. One of the main goals of contemporary regenerative medicine is to develop new regenerative therapies, inspired from Mother Nature. In all injured tissues, when platelets are activated by tissue contact, their released factors promote innate immune cell migration to the wound site...
2017: Frontiers in Bioengineering and Biotechnology
https://www.readbyqxmd.com/read/28503544/update-on-foregut-molecular-embryology-and-role-of-regenerative-medicine-therapies
#15
REVIEW
Silvia Perin, Conor J McCann, Osvaldo Borrelli, Paolo De Coppi, Nikhil Thapar
Esophageal atresia (OA) represents one of the commonest and most severe developmental disorders of the foregut, the most proximal segment of the gastrointestinal (GI) tract (esophagus and stomach) in embryological terms. Of intrigue is the common origin from this foregut of two very diverse functional entities, the digestive and respiratory systems. OA appears to result from incomplete separation of the ventral and dorsal parts of the foregut during development, resulting in disruption of esophageal anatomy and frequent association with tracheo-oesophageal fistula...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28502521/-extracorporeal-life-support-in-thoracic-surgery-what-are-the-indications-and-the-pertinence
#16
REVIEW
J Reeb, A Olland, S Renaud, O Collange, X Delabranche, N Santelmo, F Meziani, P-M Mertes, G Massard, P-E Falcoz
INTRODUCTION: In thoracic surgery, extracorporeal life support (ECLS) technologies are used in cases of severe and refractory respiratory failure or as intraoperative cardiorespiratory support. The objectives of this review are to describe the rationale of ECLS techniques, to review the pulmonary diseases potentially treated by ECLS, and finally to demonstrate the efficacy of ECLS, using recently published data from the literature, in order to practice evidence based medicine. STATE OF THE ART: ECLS technologies should only be undertaken in expert centers...
May 12, 2017: Revue des Maladies Respiratoires
https://www.readbyqxmd.com/read/28499512/the-organ-transplant-imperative
#17
REVIEW
Wil L Santivasi, Jacob J Strand, Paul S Mueller, Thomas J Beckman
More than 120,000 US patients were listed for solid organ transplants in 2016. Although data are scarce, we suspect that many of these patients will die while awaiting transplant and without engaging in goals-of-care discussions with their physicians. The challenges of addressing goals of care in patients with malignancy, end-stage renal disease, and heart failure have been studied. However, there is sparse literature on addressing goals of care throughout the dynamic process of transplant assessment and listing...
May 10, 2017: Mayo Clinic Proceedings
https://www.readbyqxmd.com/read/28499136/a-novel-tool-for-the-identification-of-correlations-in-medical-data-by-faceted-search
#18
Danilo Schmidt, Klemens Budde, Daniel Sonntag, Hans-Jürgen Profitlich, Matthias Ihle, Oliver Staeck
This work focuses on the integration of multifaceted extensive data sets (e.g. laboratory values, vital data, medications) and partly unstructured medical data such as discharge letters, diagnostic reports, clinical notes etc. in a research database. Our main application is an integrated faceted search in nephrology based on information extraction results. We describe the details of the application of transplant medicine and the resulting technical architecture of the faceted search application.
April 14, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28495397/safety-profile-and-long-term-engraftment-of-human-cd31-blood-progenitors-in-bone-tissue-engineering
#19
Hadar Zigdon-Giladi, Rina Elimelech, Gal Michaeli-Geller, Utai Rudich, Eli E Machtei
BACKGROUND: Endothelial progenitor cells (EPCs) participate in angiogenesis and induce favorable micro-environments for tissue regeneration. The efficacy of EPCs in regenerative medicine is extensively studied; however, their safety profile remains unknown. Therefore, our aims were to evaluate the safety profile of human peripheral blood-derived EPCs (hEPCs) and to assess the long-term efficacy of hEPCs in bone tissue engineering. METHODS: hEPCs were isolated from peripheral blood, cultured and characterized...
May 8, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28489049/superparamagnetic-iron-oxide-nanoparticles-complexed-cationic-amylose-for-in-vivo-magnetic-resonance-imaging-tracking-of-transplanted-stem-cells-in-stroke
#20
Bing-Ling Lin, Jun-Zhao Zhang, Lie-Jing Lu, Jia-Ji Mao, Ming-Hui Cao, Xu-Hong Mao, Fang Zhang, Xiao-Hui Duan, Chu-Shan Zheng, Li-Ming Zhang, Jun Shen
Cell-based therapy with mesenchymal stem cells (MSCs) is a promising strategy for acute ischemic stroke. In vivo tracking of therapeutic stem cells with magnetic resonance imaging (MRI) is imperative for better understanding cellular survival and migrational dynamics over time. In this study, we develop a novel biocompatible nanocomplex (ASP-SPIONs) based on cationic amylose, by introducing spermine and the image label, ultrasmall superparamagnetic iron oxide nanoparticles (SPIONs), to label MSCs. The capacity, efficiency, and cytotoxicity of the nanocomplex in transferring SPIONs into green fluorescence protein-modified MSCs were tested; and the performance of in vivo MRI tracking of the transplanted cells in acute ischemic stroke was determined...
May 10, 2017: Nanomaterials
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