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https://www.readbyqxmd.com/read/29352749/tips-for-optimizing-organ-preservation-solutions
#1
Aneta Ostróżka-Cieślik, Barbara Dolińska, Florian Ryszka
Organ injury during ischemia is one of the clinical problems of today's transplantation. It occurs during warm ischemia time (WIT) when the blood flow is cut off and during cold ischemia when a graft is chilled in situ until the circulation is restored to the recipient organism. Fast cooling of the organ slows down metabolism and activates intracellular enzymes, which minimizes the effects of warm ischemia. Unfortunately, hypothermia also results in inhibition of ATP synthesis, cell swelling and intracellular acidity...
January 20, 2018: Acta Biochimica Polonica
https://www.readbyqxmd.com/read/29352743/co-transplantation-of-adipose-tissue-derived-stromal-cells-and-olfactory-ensheathing-cells-for-spinal-cord-injury-repair
#2
Eduardo D Gomes, Sofia S Mendes, Rita C Assunção-Silva, Fábio G Teixeira, Ana O Pires, Sandra I Anjo, Bruno Manadas, Hugo Leite-Almeida, Jeffrey M Gimble, Nuno Sousa, Angelo C Lepore, Nuno A Silva, António J Salgado
Patients suffering from Spinal Cord Injury (SCI) still have a dismal prognosis. Despite all the efforts developed in this area, currently there are no effective treatments. Therefore, cell therapies have been proposed as a viable alternative to the current treatments employed. Adipose tissue-derived Stem Cells (ASCs) and Olfactory Ensheathing Cells (OECs) have been used with promising results in different models of SCI, namely due to the regenerative properties of the secretome of the first, and the guidance capability of the second...
January 20, 2018: Stem Cells
https://www.readbyqxmd.com/read/29352737/bronchiolitis-obliterans-syndrome-is-associated-with-increased-p-glycoprotein-expression-and-loss-of-glucocorticoid-receptor-from-steroid-resistant-pro-inflammatory-cd8-t-cells
#3
Greg Hodge, Sandra Hodge, Phan Tien Nguyen, Aeneas Yeo, Parama Sarkar, Arash Badiei, C L Holmes-Liew, Paul N Reynolds, Mark Holmes
Immunosuppressive therapy fails to suppress the production of pro-inflammatory cytokines, particularly by CD8+T cells, in stable lung transplant recipients and those undergoing chronic rejection, suggesting that some patients may become relatively resistant to immunosuppressants such as glucocorticoids (GC). We have shown loss of GC receptor (GCR) from the CD8+ cells, and we hypothesized that the drug membrane efflux pump, p-glycoprotein-1 (Pgp), may also be involved in lymphocyte steroid resistance following lung transplant...
January 20, 2018: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/29352666/handling-processing-and-disposal-of-stem-cell-products-in-europe-a-survey-by-the-cellular-therapy-and-immunobiology-working-party-of-the-european-society-for-blood-and-marrow-transplantation
#4
Andreas Holbro, Helen Baldomero, Francesco Lanza, Christian Chabannon, John A Snowden, Andreas Buser, Laura Infanti, Nina Worel, Anna Sureda, Manuela Badoglio, Jakob Passweg, Chiara Bonini
BACKGROUND: There is considerable heterogeneity in processing of stem cells for hematopoietic stem cell transplantation across Europe. The Foundation for the Accreditation of Cellular Therapy (FACT)-Joint Accreditation Committee International Society for Cellular Therapy and European Society for Blood and Marrow Transplantation (EBMT) (JACIE) standards provide minimum guidelines that, however, leave room for significant variations in practices at the individual transplantation center (TC)...
January 15, 2018: Cytotherapy
https://www.readbyqxmd.com/read/29352605/a-new-treatment-option-for-highly-sensitized-patients-awaiting-kidney-transplantation
#5
EDITORIAL
Enver Akalin
No abstract text is available yet for this article.
January 15, 2018: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/29352516/successful-hematopoietic-cell-transplantation-following-cardiac-transplantation-in-two-pediatric-patients
#6
Rachel Phelan, Angela R Smith, Paul J Orchard, Rebecca K Ameduri
We report two patients who underwent cardiac transplantation at a young age and subsequently required a HCT for varied indications. Despite the challenges associated with HCT following cardiac transplant, including need for altered immunosuppression, toxicities related to chemotherapy exposure, and infection risks, both patients are currently alive and well. There is a paucity of such successful cases documented in the literature, and these cases highlight the critical importance of an experienced, multidisciplinary team when caring for this patient population...
January 19, 2018: Pediatric Transplantation
https://www.readbyqxmd.com/read/29352515/principles-of-alemtuzumab-immunoablation-in-hematopoietic-cell-transplantation-for-non-malignant-diseases-in-children-a-review
#7
REVIEW
Gregory M T Guilcher, Ravi Shah, Shalini Shenoy
Alemtuzumab is a humanized mAb targeted to CD52. Alemtuzumab is highly immunosuppressive with the ability to deplete T and B cells (in addition to other immune cell lines). A growing understanding of the PKs, dosing, and timing of administration of alemtuzumab has allowed for the study of its use as a conditioning agent for allogeneic HCT. The highly immunosuppressive properties of the drug are particularly appealing in the setting of non-malignant HCT, where GVHD provides no clinical benefit and relapse of malignancy is not applicable...
January 19, 2018: Pediatric Transplantation
https://www.readbyqxmd.com/read/29352420/diagnosis-and-management-of-hepatitis-c-infection-in-primary-care-settings
#8
Debra Guss, Jagannath Sherigar, Paul Rosen, Smruti R Mohanty
Hepatitis C virus (HCV) infection is a significant health problem worldwide, and is the leading cause of cirrhosis, hepatocellular carcinoma, and liver transplantation in the United States. The management of HCV has changed significantly over the last 5 years, as treatments have become simpler and more efficacious. Medication efficacy is now greater than 90%, with a high barrier to resistance and few side effects. This review is a collaboration between primary care and hepatology providers to explore all aspects of HCV management: acute versus chronic HCV infection, transmission and testing, and diagnosis and treatment...
January 19, 2018: Journal of General Internal Medicine
https://www.readbyqxmd.com/read/29352391/functional-recovery-by-application-of-human-dedifferentiated-fat-cells-on-cerebral-infarction-mice-model
#9
Tomoki Kakudo, Naotaka Kishimoto, Tomohiro Matsuyama, Yoshihiro Momota
Elderly people whose daily activities have declined due to a cerebrovascular disorder may suffer from dysphagia and may find oral hygiene difficult. Therefore, it is important to establish an effective therapy for the underlying cerebrovascular disorder. Dedifferentiated fat cells (DFAT) were obtained from mature adipocytes isolated from human buccal adipose pads in a ceiling culture. DFAT expressed the neural markers Nestin and SOX2. Flow cytometric analysis revealed that the cells had properties similar to mesenchymal stem cells...
January 19, 2018: Cytotechnology
https://www.readbyqxmd.com/read/29352347/autologous-cell-based-therapy-for-treatment-of-large-bone-defects-from-bench-to-bedside
#10
REVIEW
R Verboket, M Leiblein, C Seebach, C Nau, M Janko, M Bellen, H Bönig, D Henrich, I Marzi
OBJECTIVES: Reconstruction of long segmental bone defects is demanding for patients and surgeons, and associated with long-term treatment periods and substantial complication rates in addition to high costs. While defects up to 4-5 cm length might be filled up with autologous bone graft, heterologous bone from cadavers, or artificial bone graft substitutes, current options to reconstruct bone defects greater than 5 cm consist of either vascularized free bone transfers, the Masquelet technique or the Ilizarov distraction osteogenesis...
January 19, 2018: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/29352225/a-humanized-mouse-model-of-liver-fibrosis-following-expansion-of-transplanted-hepatic-stellate-cells
#11
Daniel Benten, Johannes Kluwe, Jan W Wirth, Nina D Thiele, Antonia Follenzi, Kuldeep K Bhargava, Christopher J Palestro, Michael Koepke, Reni Tjandra, Tassilo Volz, Marc Lutgehetmann, Sanjeev Gupta
Hepatic stellate cells (HSCs) are major contributors to liver fibrosis, as hepatic injuries may cause their transdifferentiation into myofibroblast-like cells capable of producing excessive extracellular matrix proteins. Also, HSCs can modulate engraftment of transplanted hepatocytes and contribute to liver regeneration. Therefore, understanding the biology of human HSCs (hHSCs) is important, but effective methods have not been available to address their fate in vivo. To investigate whether HSCs could engraft and repopulate the liver, we transplanted GFP-transduced immortalized hHSCs into immunodeficient NOD/SCID mice...
January 19, 2018: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/29352190/autophagy-promotes-msc-mediated-vascularization-in-cutaneous-wound-healing-via-regulation-of-vegf-secretion
#12
Y An, W J Liu, P Xue, Y Ma, L Q Zhang, B Zhu, M Qi, L Y Li, Y J Zhang, Q T Wang, Y Jin
Vascularization deficiency caused a lot of diseases, such as diabetes ulcer and myocardial infarction. Mesenchymal stem cells (MSCs), with the self-renewal and multipotent differentiation capacities, have been used for many diseases treatment through regulation microenvironment. Numerous studies reported that MSCs transplantation could largely improve cutaneous wound healing via paracrine secretion of growth factors. However, whether MSCs take part in the angiogenesis process directly remains elusive. Previous study proved that autophagy inhibited immunosuppressive function of MSCs and prevented the degradation of MSCs function in inflammatory and senescent microenvironment...
January 19, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29352165/construction-of-full-length-japanese-reference-panel-of-class-i-hla-genes-with-single-molecule-real-time-sequencing
#13
Takahiro Mimori, Jun Yasuda, Yoko Kuroki, Tomoko F Shibata, Fumiki Katsuoka, Sakae Saito, Naoki Nariai, Akira Ono, Naomi Nakai-Inagaki, Kazuharu Misawa, Keiko Tateno, Yosuke Kawai, Nobuo Fuse, Atsushi Hozawa, Shinichi Kuriyama, Junichi Sugawara, Naoko Minegishi, Kichiya Suzuki, Kengo Kinoshita, Masao Nagasaki, Masayuki Yamamoto
Human leukocyte antigen (HLA) is a gene complex known for its exceptional diversity across populations, importance in organ and blood stem cell transplantation, and associations of specific alleles with various diseases. We constructed a Japanese reference panel of class I HLA genes (ToMMo HLA panel), comprising a distinct set of HLA-A, HLA-B, HLA-C, and HLA-H alleles, by single-molecule, real-time (SMRT) sequencing of 208 individuals included in the 1070 whole-genome Japanese reference panel (1KJPN). For high-quality allele reconstruction, we developed a novel pipeline, Primer-Separation Assembly and Refinement Pipeline (PSARP), in which the SMRT sequencing and additional short-read data were used...
January 19, 2018: Pharmacogenomics Journal
https://www.readbyqxmd.com/read/29352109/role-of-b-and-t-lymphocyte-attenuator-in-renal-transplant-recipients-with-biopsy-proven-acute-rejection
#14
Zijie Wang, Haiwei Yang, Xuzhong Liu, Jingying Zhang, Zhijian Han, Jun Tao, Chunchun Zhao, Xiaobin Ju, Ruoyun Tan, Min Gu
BACKGROUND Acute rejection is a common predisposing cause of allograft dysfunction in kidney transplantation. Recently, the B and T lymphocyte attenuator (BTLA)/herpes virus entry mediator (HVEM)/lymphotoxin (LIGHT)/CD160 pathway was found to be potentially involved in the regulation of T cell activation. This could mean that this pathway is involved in graft rejection in kidney transplantation; the present study aimed to explore this possibility. MATERIAL AND METHODS The expression of BTLA, HVEM, LIGHT and CD160 on peripheral CD4+, CD8+ and CD19+ lymphocytes were analyzed by flow cytometry in recipients with biopsy-proven acute rejection (BPAR) or stable allograft function, as well as in healthy volunteers...
January 20, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29352038/microenvironment-induced-cd44v6-promotes-early-disease-progression-in-chronic-lymphocytic-leukemia
#15
Julia C Gutjahr, Eva Szenes, Lisa Tschech, Daniela Asslaber, Michaela Schlederer, Simone Roos, Xiaobing Yu, Tamara Girbl, Christina Sternberg, Alexander Egle, Fritz Aberger, Ronen Alon, Lukas Kenner, Richard Greil, Veronique Orian-Rousseau, Tanja N Hartmann
Chronic lymphocytic leukemia (CLL) outgrowth depends on signals from the microenvironment. We have previously found that in vitro reconstitution of this microenvironment induces specific variant isoforms of the adhesion molecule CD44, which confer human CLL with high affinity to hyaluronan (HA). Here, we determined the in vivo contribution of standard CD44 and its variants to leukemic B-cell homing and proliferation in Tcl1 transgenic mice with a B-cell-specific CD44 deficiency. In these mice, leukemia onset was delayed and leukemic infiltration of spleen, liver, and lungs, but not of bone marrow was decreased...
January 19, 2018: Blood
https://www.readbyqxmd.com/read/29351987/cd83-is-a-new-potential-biomarker-and-therapeutic-target-for-hodgkin-lymphoma
#16
Ziduo Li, Xinsheng Ju, Kenneth Lee, Candice Clarke, Jennifer L Hsu, Edward Abadir, Christian E Bryant, Suzanne Pears, Neroli Sunderland, Scott Heffernan, Annemarie Hennessy, Tsun-Ho Lo, Geoffrey A Pietersz, Fiona Kupresanin, Phillip D Fromm, Pablo A Silveira, Con Tsonis, Wendy A Cooper, Ilona Cunningham, Christina Brown, Georgina J Clark, Derek N J Hart
Chemotherapy and hematopoietic stem cell transplantation are effective treatments for most Hodgkin lymphoma patients, however there remains a need for better tumor-specific target therapy in Hodgkin lymphoma patients with refractory or relapsed disease. We demonstrate that membrane CD83 is a diagnostic and therapeutic target, highly expressed in Hodgkin lymphoma cell lines and Hodgkin and Reed-Sternberg cells in 29/35 (82.9%) Hodgkin lymphoma patient lymph node biopsies. CD83 from Hodgkin lymphoma tumor cells was able to trogocytose to surrounding T cells and interestingly, the trogocytosing CD83+T cells expressed significantly more PD-1 compared to CD83- T cells...
January 19, 2018: Haematologica
https://www.readbyqxmd.com/read/29351985/tocilizumab-tacrolimus-and-methotrexate-for-the-prevention-of-acute-graft-versus-host-disease-low-incidence-of-lower-gastrointestinal-tract-disease
#17
William R Drobyski, Aniko Szabo, Fenlu Zhu, Carolyn Keever-Taylor, Kyle M Hebert, Renee Dunn, Sharon Yim, Bryon Johnson, Anita D'Souza, Mary Eapen, Timothy S Fenske, Parameswaran Hari, Mehdi Hamadani, Mary M Horowitz, J Douglas Rizzo, Wael Saber, Nirav Shah, Bronwen Shaw, Marcelo Pasquini
We conducted a phase 2 study in which patients undergoing allogeneic hematopoietic stem cell transplantation received Tocilizumab in addition to standard immune suppression with tacrolimus and methotrexate for graft versus host disease prophylaxis. Thirty-five patients were enrolled between January 2015 and June 2016. The median age of the cohort was 66 (range 22-76). All patients received busulfan-based conditioning, and were transplanted with HLA-matched related or matched unrelated bone marrow or peripheral stem cell grafts...
January 19, 2018: Haematologica
https://www.readbyqxmd.com/read/29351983/partial-tandem-duplication-of-kmt2a-mll-may-predict-a-subset-of-myelodysplastic-syndrome-with-unique-characteristics-and-poor-outcome
#18
Sarah M Choi, Rajan Dewar, Patrick W Burke, Lina Shao
Partial tandem duplication (PTD) of the KMT2A (MLL) gene is a poor prognostic factor in acute myeloid leukemia, but its significance in the context of myelodysplastic syndrome (MDS) is unknown. Here, we used cytogenomic array to identify MLL-PTD in a group of MDS patients and compared their clinicopathologic characteristics with a cohort of high-risk MDS patients without MLL-PTD. We show that MLL-PTD defines a subset of MDS characterized by high blast count, normal karyotype, and extremely poor prognosis exceeding that of non-MLL-PTD high risk MDS, including those with complex karyotype...
January 19, 2018: Haematologica
https://www.readbyqxmd.com/read/29351982/prevalence-and-characteristics-of-metabolic-syndrome-in-adults-from-the-french-childhood-leukemia-survivors-cohort-a-comparison-with-controls-from-the-french-population
#19
Claire Oudin, Julie Berbis, Yves Bertrand, Camille Vercasson, Frédérique Thomas, Pascal Chastagner, Stéphane Ducassou, Justyna Kanold, Marie-Dominique Tabone, Catherine Paillard, Marilyne Poirée, Dominique Plantaz, Jean-Hugues Dalle, Virginie Gandemer, Sandrine Thouvenin, Nicolas Sirvent, Paul Saultier, Sophie Béliard, Guy Leverger, André Baruchel, Pascal Auquier, Bruno Pannier, Gérard Michel
The prevalence of the metabolic syndrome among adults from the French childhood acute leukemia survivors' cohort was prospectively evaluated considering the type of anti-leukemic treatment received, and compared with that of controls. The metabolic profile of those patients was compared with that of controls. 3203 patients from a French volunteer cohort were age- and sex-matched 3:1 to 1025 leukemia survivors (in both cohorts, mean age: 24.4 years, female individuals: 51%). Metabolic syndrome was defined according to the National Cholesterol Education Program's Adult Treatment Panel III criteria...
January 19, 2018: Haematologica
https://www.readbyqxmd.com/read/29351922/activation-of-constitutive-androstane-receptor-ameliorates-renal-ischemia-reperfusion-induced-liver-and-kidney-injury
#20
You-Jin Choi, Dong Zhou, Anne Barbosa, Yongdong Niu, Xiudong Guan, Meishu Xu, Songrong Ren, Thomas Nolin, Yiuhua Liu, Wen Xie
Acute kidney injury (AKI) is associate with high mortality. Despite the evidence of AKI-induced distant organ injury, a relationship between AKI and liver injury has not been clearly established. The goal of this study is to investigate whether renal ischemia-reperfusion (IR) can affect liver pathophysiology. We showed that renal IR in mice induced fatty liver and compromised liver function through the down-regulation of constitutive androstane receptor (CAR; -90.4%) and inhibition of hepatic very low-density lipoprotein-triglyceride (VLDL-TG) secretion (-28...
January 19, 2018: Molecular Pharmacology
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