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Cell transplantation

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https://www.readbyqxmd.com/read/29149239/label-free-in-vivo-imaging-of-corneal-lymphatic-vessels-using-microscopic-optical-coherence-tomography
#1
Jens Horstmann, Hinnerk Schulz-Hildebrandt, Felix Bock, Sebastian Siebelmann, Eva Lankenau, Gereon Hüttmann, Philipp Steven, Claus Cursiefen
Purpose: Corneal neovascularization, in particular lymphangiogenesis, is a limiting factor in corneal transplant survival. Novel treatment approaches focus on (selective) inhibition and regression of lymphatic vessels. Imaging clinically invisible corneal lymphatic vessels is a prerequisite for these strategies. Using a murine model, this study investigates whether corneal lymphatic vessels can be imaged using microscopic optical coherence tomography (mOCT). Methods: Corneal neovascularization was induced by intrastromal placement of 11...
November 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29149103/human-hepatocyte-transplantation-for-liver-disease-current-status-and-future-perspectives
#2
REVIEW
Valeria Iansante, Ragai R Mitry, Céline Filippi, Emer Fitzpatrick, Anil Dhawan
Liver transplantation is the accepted treatment for patients with acute liver failure and liver-based metabolic disorders. However, donor organ shortage and lifelong need for immunosuppression are the main limitations to liver transplantation. In addition, loss of the native liver as target organ for future gene therapy for metabolic disorders limits the futuristic treatment options, resulting in the need for alternative therapeutic strategies. A potential alternative to liver transplantation is allogeneic hepatocyte transplantation...
November 14, 2017: Pediatric Research
https://www.readbyqxmd.com/read/29147612/low-dose-post-transplant-cyclophosphamide-can-mitigate-gvhd-and-enhance-the-g-csf-atg-induced-gvhd-protective-activity-and-improve-haploidentical-transplant-outcomes
#3
Yu Wang, Ying-Jun Chang, Lu Chen, Lan-Ping Xu, Zhi-Lei Bian, Xiao-Hui Zhang, Chen-Hua Yan, Kai-Yan Liu, Xiao-Jun Huang
Use of high-dose, post-transplant cyclophosphamide (PTCy) results in low rates of graft-versus-host-disease (GVHD) and favorable immune reconstitution, although with higher rates of relapse and somewhat high rates of graft failure. We hypothesized that permissible dose reduction of PTCy might be feasible. The current study attempts to establish a murine model and focus on regulatory T cells (Tregs) to clarify the immunological mechanisms for GVHD prevention by low-dose PTCy. In addition, a prospective, clinical cohort study in haploidentical, T-cell replete transplantation is initiated to support the rational...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29147589/%C3%AE-%C3%AE-t-cell-acute-lymphoblastic-leukemia-lymphoma-discussion-of-two-pediatric-cases-and-its-distinction-from-other-mature-%C3%AE-%C3%AE-t-cell-malignancies
#4
Eric X Wei, Vasiliki Leventaki, John K Choi, Susana C Raimondi, Elizabeth M Azzato, Sheila A Shurtleff, Menchu G Ong, Diana M Veillon, James D Cotelingam, Rodney E Shackelford
Gamma delta (γδ) T-cell antigen receptor (TCR) expression and its related T-cell differentiation are not commonly reported in T-cell acute lymphoblastic leukemia/lymphoma (T-ALL). Here we report two pediatric T-ALL cases and present their clinical features, histology, immunophenotypes, cytogenetics, and molecular diagnostic findings. The first patient is a two-year-old girl with leukocytosis, circulating lymphoblasts, and a cryptic insertion of a short-arm segment at 10p12 into the long-arm segment of 11q23 resulting in an MLL and AF10 fusion transcript, which may be the first reported in γδ T-ALL...
2017: Case Reports in Hematology
https://www.readbyqxmd.com/read/29147489/the-effect-of-platelet-rich-plasma-on-human-mesenchymal-stem-cell-induced-bone-regeneration-of-canine-alveolar-defects-with-calcium-phosphate-based-scaffolds
#5
Reihaneh Shafieian, Maryam Moghaddam Matin, Amin Rahpeyma, Alireza Fazel, Hamideh Salari Sedigh, Ariane Sadr-Nabavi, Halimeh Hassanzadeh, Alireza Ebrahimzadeh-Bideskan
Objectives: Autologous bone transplantation known as the "gold standard" to reconstruction of osseous defects has known disadvantages. This study was designed to explore the effects of hydroxy-apatite/tricalcium-phosphate (HA/TCP) and platelet-rich plasma (PRP) on the osteogenesis ability of human adipose-derived mesenchymal stem cells (hAdMSCs) in vitro and in vivo. Materials and Methods: hAdMSCs were incubated with HA/TCP granules and/or PRP in vitro and then, cell proliferation and differentiation was assessed by MTT assay, AZR S staining and SEM examination...
October 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29146943/cryopreservation-of-human-mesenchymal-stem-cells-in-an-allogeneic-bioscaffold-based-on-platelet-rich-plasma-and-synovial-fluid
#6
Haritz Gurruchaga, Laura Saenz Del Burgo, Ane Garate, Diego Delgado, Pello Sanchez, Gorka Orive, Jesús Ciriza, Mikel Sanchez, Jose Luis Pedraz
Transplantation of mesenchymal stem cells (MSCs) has emerged as an alternative strategy to treat knee osteoarthritis. In this context, MSCs derived from synovial fluid could provide higher chondrogenic and cartilage regeneration, presenting synovial fluid as an appropriate MSCs source. An allogeneic and biomimetic bioscaffold composed of Platelet Rich Plasma and synovial fluid that preserve and mimics the natural environment of MSCs isolated from knee has also been developed. We have optimized the cryopreservation of knee-isolated MSCs embedded within the aforementioned biomimetic scaffold, in order to create a reserve of young autologous embedded knee MSCs for future clinical applications...
November 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29146882/physiological-srsf2-p95h-expression-causes-impaired-hematopoietic-stem-cell-functions-and-aberrant-rna-splicing-in-mice
#7
Ayana Kon, Satoshi Yamazaki, Yasuhito Nannya, Keisuke Kataoka, Yasunori Ota, Masahiro Marshall Nakagawa, Kenichi Yoshida, Yusuke Shiozawa, Maiko Morita, Tetsuichi Yoshizato, Masashi Sanada, Manabu Nakayama, Haruhiko Koseki, Hiromitsu Nakauchi, Seishi Ogawa
Splicing factor (SF) mutations are characteristic of myelodysplastic syndromes (MDS) and related myeloid neoplasms and implicated in their pathogenesis, but their roles in the development of MDS have not fully been elucidated. Here, we investigated the consequence of mutant Srsf2 expression using newly generated Vav1-Cre-mediated conditional knock-in mice. Mice carrying a heterozygous Srsf2 P95H mutation showed significantly reduced numbers of hematopoietic stem and progenitor cells (HSPCs) and differentiation defects both in the steady-state condition and transplant settings...
November 16, 2017: Blood
https://www.readbyqxmd.com/read/29146734/humanized-mice-in-studying-efficacy-and-mechanisms-of-pd-1-targeted-cancer-immunotherapy
#8
Minan Wang, Li-Chin Yao, Mingshan Cheng, Danying Cai, Jan Martinek, Chong-Xian Pan, Wei Shi, Ai-Hong Ma, Ralph W De Vere White, Susan Airhart, Edison T Liu, Jacques Banchereau, Michael A Brehm, Dale L Greiner, Leonard D Shultz, Karolina Palucka, James G Keck
Establishment of an in vivo small animal model of human tumor and human immune system interaction would enable preclinical investigations into the mechanisms underlying cancer immunotherapy. To this end, non-obese diabetic (NOD).Cg-Prkdc(scid)IL2rg(tm1Wjl) /Sz (null; NSG) mice were transplanted with human (h)CD34(+) hematopoietic progenitor and stem cells, which leads to the development of human hematopoietic and immune systems [humanized NSG (HuNSG)]. HuNSG mice received human leukocyte antigen partially matched tumor implants from patient-derived xenografts [PDX; nonsmall cell lung cancer (NSCLC), sarcoma, bladder cancer, and triple-negative breast cancer (TNBC)] or from a TNBC cell line-derived xenograft (CDX)...
November 16, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29146707/outcomes-after-allogeneic-hematopoietic-stem-cell-transplantation-in-patients-with-acute-myeloid-leukemia-harboring-t-7-11-p15-p15
#9
Kaito Harada, Noriko Doki, Jun Aoki, Jinichi Mori, Shinichiro Machida, Masayoshi Masuko, Naoyuki Uchida, Yuho Najima, Takahiro Fukuda, Heiwa Kanamori, Hiroyasu Ogawa, Shuichi Ota, Kazuei Ogawa, Satoshi Takahashi, Masanobu Kasai, Akio Maeda, Koji Nagafuji, Toshiro Kawakita, Tatsuo Ichinohe, Yoshiko Atsuta
No abstract text is available yet for this article.
November 16, 2017: Haematologica
https://www.readbyqxmd.com/read/29146706/the-clinical-and-laboratory-evaluation-of-familial-hemophagocytic-lymphohistiocytosis-and-the-importance-of-hepatic-and-spinal-cord-involvement-a-single-center-experience
#10
Burcin Beken, Selin Aytac, Gunay Balta, Baris Kuskonmaz, Duygu Uckan, Sule Unal, Mualla Cetin, Fatma Gumruk
Familial hemophagocytic lymphohistiocytosis is an autosomal recessive, life-threatening condition characterized by defective immune response. A retrospective analysis was performed on 57 patients diagnosed with familial hemophagocytic lymphohistiocytosis at Hacettepe University Pediatric Hematology Department. Mutation analysis was performed on 37 patients and of these; 11 had UNC13D, 10 had PRF1 and 3 had STX11 gene mutation. Of these patients 44% were found to have central nervous system involvement on admission and spinal cord involvement was also seen in 5 patients...
November 16, 2017: Haematologica
https://www.readbyqxmd.com/read/29146241/cardiac-progenitor-cells-activated-by-mitochondrial-delivery-of-resveratrol-enhance-the-survival-of-a-doxorubicin-induced-cardiomyopathy-mouse-model-via-the-mitochondrial-activation-of-a-damaged-myocardium
#11
Jiro Abe, Yuma Yamada, Takeda Atsuhito, Hideyoshi Harashima
It has been reported that transplanting native cells would lack efficiency without producing artificial cell-tissue, due to the exaggerated oxidative stress in doxorubicin-induced cardiomyopathy. We attempted to activate cardiac progenitor cells (CPCs) by delivering resveratrol to mitochondria using a mitochondrial drug delivery system (MITO-Porter system). We first evaluated the viability of H9c2 cells (a cardio myoblast cell line) after doxorubicin treatment, where H9c2 cells were co-cultured with or without the mitochondria activated CPCs (referred to herein as MITO cell)...
November 13, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29146208/glaucoma-associated-corneal-endothelial-cell-damage-a-review
#12
REVIEW
Ben J Janson, Wallace L Alward, Young H Kwon, Daniel I Bettis, John H Fingert, Lorraine M Provencher, Kenneth M Goins, Michael D Wagoner, Mark A Greiner
The corneal endothelium is critical in maintaining a healthy and clear cornea. Corneal endothelial cells have a significant reserve function, but preservation of these cells is paramount as they have limited regenerative capacity. Glaucoma is a prevalent disease, and damage to the corneal endothelium may be caused by the disease process itself as well as by its treatment. The mechanisms involved in glaucoma-associated damage to the corneal endothelium need further investigation. Understanding how glaucoma and glaucoma surgery impact the endothelium is important for protecting corneal clarity and visual acuity in all glaucoma patients, including those undergoing corneal transplant...
November 13, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/29146190/newly-developed-selective-immunoinactivation-assay-revealed-reduction-in-adipose-triglyceride-lipase-activity-in-peripheral-leucocytes-from-patients-with-idiopathic-triglyceride-deposit-cardiomyovasculopathy
#13
Atsuko Takagi, Yasuyuki Ikeda, Kunihisa Kobayashi, Kazuhiro Kobayashi, Yoshihiko Ikeda, Junji Kozawa, Hideyuki Miyauchi, Ming Li, Chikako Hashimoto, Yasuhiro Hara, Satoshi Yamaguchi, Akira Suzuki, Tatsushi Toda, Hironori Nagasaka, Ken-Ichi Hirano
Triglyceride deposit cardiomyovasculopathy (TGCV) is a rare and newly identified disease among patients requiring cardiac transplantation. TGCV is characterized by cardiomyocyte steatosis and triglyceride (TG)-deposit atherosclerosis, resulting from the abnormal intracellular metabolism of TG. TGCV is classified into primary and idiopathic types. Primary TGCV carries ultra-rare genetic mutations in the adipose triglyceride lipase (ATGL), a rate-liming enzyme that hydrolyzes intracellular TG in adipose and non-adipose tissues...
November 13, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29146059/oral-lymphomatoid-papulosis-type-c-a-diagnostic-pitfall-often-confused-with-t-cell-lymphoma
#14
Ziv Schwartz, Morton Coleman, Jennifer P Toyohara, Paul D Freedman, Cynthia M Magro
Eosinophilic ulcer of the oral mucosa (EUOM) is a rare, benign, self-resolving lymphoproliferative disorder, which typically presents with asymptomatic to mildly tender ulcers. Histological findings of EUOM are characterized by a polymorphic infiltrate with many eosinophils often extending into the underlying muscle. Although this entity is well documented within the dental literature, it is not well known to physicians. The pathogenesis of the condition is unclear, although reports dating back to 1997 suggest that at least a subset of EUOM represents CD30 positive lymphoproliferative disorder (CD30+ LPD)...
December 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29145997/correlation-of-graft-immune-composition-with-outcomes-after-allogeneic-stem-cell-transplantation-moving-towards-a-perfect-transplant
#15
REVIEW
Guang Gu, Jian-Zhu Yang, Li-Xia Sun
Allogeneic stem cell transplantation (allo-SCT) offers an important curative therapy for hematological malignancies and other diseases. A number of studies have demonstrated the association of immune compositions in allografts with outcomes after allo-SCT, which promote graft engineering to improve transplant prognosis. This review summarizes the advances in investigating the correlation of the graft immune compositions with transplant outcomes in different transplant modalities, focusing on the immune subsets likely to have the greatest impact on clinical outcomes...
November 7, 2017: Cellular Immunology
https://www.readbyqxmd.com/read/29145898/making-gametes-from-alternate-sources-of-stem-cells-past-present-and-future
#16
REVIEW
Deepa Bhartiya, Sandhya Anand, Hiren Patel, Seema Parte
Infertile couples including cancer survivors stand to benefit from gametes differentiated from embryonic or induced pluripotent stem (ES/iPS) cells. It remains challenging to convert human ES/iPS cells into primordial germ-like cells (PGCLCs) en route to obtaining gametes. Considerable success was achieved in 2016 to obtain fertile offspring starting with mouse ES/iPS cells, however the specification of human ES/iPS cells into PGCLCs in vitro is still not achieved. Human ES cells will not yield patient-specific gametes unless and until hES cells are derived by somatic cell nuclear transfer (therapeutic cloning) whereas iPS cells retain the residual epigenetic memory of the somatic cells from which they are derived and also harbor genomic and mitochondrial DNA mutations...
November 16, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/29145879/allogeneic-mesenchymal-stem-cell-as-induction-therapy-to-prevent-both-delayed-graft-function-and-acute-rejection-in-deceased-donor-renal-transplantation-study-protocol-for-a-randomized-controlled-trial
#17
Qipeng Sun, Liangqing Hong, Zhengyu Huang, Ning Na, Xuefeng Hua, Yanwen Peng, Ming Zhao, Ronghua Cao, Qiquan Sun
BACKGROUND: Using kidneys from deceased donors is an available strategy to meet the growing need of grafts. However, higher incidences of delayed graft function (DGF) and acute rejection exert adverse effects on graft outcomes. Since ischemia-reperfusion injury (IRI) and ongoing process of immune response to grafts are the major causes of DGF and acute rejection, the optimal induction intervention should possess capacities of both repairing renal structure injury and suppressing immune response simultaneously...
November 16, 2017: Trials
https://www.readbyqxmd.com/read/29145491/the-urine-biomarker-panel-igfbp7-x-timp-2-nephrocheck%C3%A2-parameter-does-not-correlate-with-igfbp7-and-timp-2-gene-expression-in-urinary-sediment
#18
Daniela Knafl, Markus Müller, Sahra Pajenda, Zeynep Genc, Manfred Hecking, Ludwig Wagner
BACKGROUND: Acute kidney injury (AKI) is frequently observed in serious infections, following nephrotoxic medication, surgery and trauma. Here we tested whether the detection of two recently identified biomarkers for AKI, Tissue Inhibitor of Metalloproteinase-2 (TIMP-2) and Insulin-Like Growth Factor Binding Protein 7 (IGFBP7), depends on the expression of these proteins in cells of the urinary sediment. METHOD: We collected urine samples of 33 kidney transplant recipients and 14 non-transplanted patients who all had AKI (stages 1-3 according to KDIGO), and measured [IGFBP7]x[TIMP-2] using the NephroCheck® Astute1 40 ™ meter...
2017: PloS One
https://www.readbyqxmd.com/read/29145424/levosimendan-protects-human-hepatocytes-from-ischemia-reperfusion-injury
#19
Stefanie N Brunner, Nicolai V Bogert, Andreas A Schnitzbauer, Eva Juengel, Anton Moritz, Isabella Werner, Angela Kornberger, Andres Beiras-Fernandez
BACKGROUND: Ischemia-reperfusion injury (IRI) is a major challenge in liver transplantation. The mitochondrial pathway plays a pivotal role in hepatic IRI. Levosimendan, a calcium channel sensitizer, was shown to attenuate apoptosis after IRI in animal livers. The aim of this study was to investigate the effect of levosimendan on apoptosis in human hepatocytes. METHODS: Primary human hepatocytes were either exposed to hypoxia or cultured under normoxic conditions...
2017: PloS One
https://www.readbyqxmd.com/read/29144272/body-composition-in-children-with-chronic-illness-accuracy-of-bedside-assessment-techniques
#20
Enid E Martinez, Craig D Smallwood, Nicolle L Quinn, Katelyn Ariagno, Lori J Bechard, Christopher P Duggan, Nilesh M Mehta
OBJECTIVE: To evaluate the accuracy of estimated fat mass and fat-free mass from bedside methods compared with reference methods in children with chronic illnesses. STUDY DESIGN: Fat mass and fat-free mass values were obtained by skinfold, bioelectrical impedance analysis (BIA), dual-energy x-ray absorptiometry (DXA), and deuterium dilution method in children with spinal muscular atrophy, intestinal failure, and post hematopoietic stem cell transplantation (HSCT)...
November 2017: Journal of Pediatrics
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