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Transplantation induction therapies

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https://www.readbyqxmd.com/read/28944920/periodic-acid%C3%A2-schiff-staining-method-for-function-detection-of-liver-cells-is-affected-by-2-horse-serum-in-induction-medium
#1
Hui Hui, Wenjun Ma, Jiejie Cui, Mengjia Gong, Yi Wang, Yuanyuan Zhang, Tongchuan He, Yang Bi, Yun He
Developing a thorough understanding of experimental methods of hepatic differentiation in hepatic progenitor cells (HPCs) should expand the knowledge of hepatocyte induction in vitro and may help to develop cell transplantation therapies for the clinical usage of HPCs in liver diseases. A previous induction method effectively induced differentiation and metabolic abilities in HPCs. Periodic acid‑Schiff (PAS) staining is used to identify glycogen synthesis and hepatocyte function; however, this method failed to detect induced hepatocytes...
September 22, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28941322/stromal-cell-derived-factor-1-mediates-cardiac-allograft-tolerance-induced-by-human-endometrial-regenerative-cell-based-therapy
#2
Xu Lan, Grace Wang, Xiaoxi Xu, Shanzheng Lu, Xiang Li, Baoren Zhang, Ganggang Shi, Yiming Zhao, Caigan Du, Hao Wang
Endometrial regenerative cells (ERCs) are mesenchymal-like stromal cells, and their therapeutic potential has been tested in the prevention of renal ischemic reperfusion injury, acute liver injury, ulcerative colitis, and immunosuppression. However, their potential in the induction of transplant tolerance has not been investigated. The present study was undertaken to investigate the efficacy of ERCs in inducing cardiac allograft tolerance and the function of stromal cell-derived factor-1 (SDF-1) in the ERC-mediated immunoregulation...
September 23, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28939161/t-cell-mediated-antitumor-immune-response-eliminates-skin-tumors-induced-by-mouse-papillomavirus-mmupv1
#3
Joongho Joh, Paula M Chilton, Sarah A Wilcher, Maryam Zahin, Jino Park, Mary L Proctor, Shin-Je Ghim, Alfred B Jenson
Previous studies of naturally occurring mouse papillomavirus (PV) MmuPV1-induced tumors in B6.Cg-Foxn1(nu/nu) mice suggest that T cell deficiency is necessary and sufficient for the development of such tumors. To confirm this, MmuPV1-induced tumors were transplanted from T cell-deficient mice into immunocompetent congenic mice. Consequently, the tumors regressed and eventually disappeared. The elimination of MmuPV1-infected skin/tumors in immunocompetent mice was consistent with the induction of antitumor T cell immunity...
September 19, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/28925935/technical-advances-in-the-measurement-of-residual-disease-in-acute-myeloid-leukemia
#4
REVIEW
Gregory W Roloff, Catherine Lai, Christopher S Hourigan, Laura W Dillon
Outcomes for those diagnosed with acute myeloid leukemia (AML) remain poor. It has been widely established that persistent residual leukemic burden, often referred to as measurable or minimal residual disease (MRD), after induction therapy or at the time of hematopoietic stem cell transplant (HSCT) is highly predictive for adverse clinical outcomes and can be used to identify patients likely to experience clinically evident relapse. As a result of inherent genetic and molecular heterogeneity in AML, there is no uniform method or protocol for MRD measurement to encompass all cases...
September 19, 2017: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/28924460/recent-progress-in-cell-therapy-in-solid-organ-transplantation
#5
REVIEW
R Garakani, R F Saidi
There has been ample of preclinical and animal studies showing efficacy and safety of using various cells, such as stem cells or T regulatory cells, after transplantation for tissue repair, immunosuppression or tolerance induction. However, there has been a significant progress recently using cell therapy in solid organ transplantation in small clinical trials. Recent results have been promising and using cell therapy in solid organ transplantation seems feasible and safe. However, there are more hurdles to overcome such as dose and timing of the infusions...
2017: International Journal of Organ Transplantation Medicine
https://www.readbyqxmd.com/read/28923618/impact-of-induction-therapy-on-delayed-graft-function-following-kidney-transplantation-in-mated-kidneys
#6
T Butler, N Hayde
BACKGROUND: Delayed graft function (DGF) is defined as the need for dialysis within 1 week of transplantation and occurs in 20%-50% of deceased-donor kidney transplant recipients. Although recovery from DGF often occurs within a few days, many cases may take weeks to months before the transplant function begins. The delay in function increases the complexity of recipient care, makes the diagnosis of acute rejection more difficult, prolongs length of stay, and increases hospital costs...
October 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28894560/poems-syndrome-an-update
#7
REVIEW
Andrea Nozza
POEMS syndrome is a rare, chronic and disabling condition. The causes of this condition remain unknown; however, chronic overproduction of proinflammatory cytokines appears to be a major contributor. Early diagnosis is essential to start treatment before the clinical state of the patient becomes compromised. A complete evaluation of the disease at its onset is critical to the treatment decision. In localized disease, curative doses of radiation (50 Gy) is the recommended therapy. On the other hand, patients with disseminated disease should be given systemic therapy...
2017: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/28894451/inflammatory-conditions-dictate-the-effect-of-mesenchymal-stem-or-stromal-cells-on-b-cell-function
#8
Franka Luk, Laura Carreras-Planella, Sander S Korevaar, Samantha F H de Witte, Francesc E Borràs, Michiel G H Betjes, Carla C Baan, Martin J Hoogduijn, Marcella Franquesa
The immunomodulatory capacity of mesenchymal stem or stromal cells (MSC) makes them a promising tool for treatment of immune disease and organ transplantation. The effects of MSC on B cells are characterized by an abrogation of plasmablast formation and induction of regulatory B cells (Bregs). It is, however, unknown how MSC interact with B cells under inflammatory conditions. In this study, adipose tissue-derived MSC were pretreated with 50 ng/ml IFN-γ for 96 h (MSC-IFN-γ) to simulate inflammatory conditions...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28894277/host-expression-of-the-cd8-treg-nk-cell-restriction-element-qa-1-is-dispensable-for-transplant-tolerance
#9
Blair T Stocks, Christopher S Wilson, Andrew F Marshall, Lauren A Brewer, Daniel J Moore
Disruption of the non-classical Major Histocompatibility Complex (MHC) Ib molecule Qa-1 impairs CD8 Treg and natural killer (NK) cell function and promotes a lupus-like autoimmune disease. This immune perturbation would be expected to enhance anti-transplant responses and impair tolerance induction, but the effect of Qa-1 deficiency on the transplant response has not been previously reported. Qa-1 deficiency enhanced CD4 TFH and germinal center (GC) B cell numbers in naïve mice and hastened islet allograft rejection...
September 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28889951/pancreatic-%C3%AE-cell-regeneration-as-a-possible-therapy-for-diabetes
#10
REVIEW
Cristina Aguayo-Mazzucato, Susan Bonner-Weir
Diabetes is the result of having inadequate supply of functional insulin-producing β cells. Two possible approaches for replenishing the β cells are: (1) replacement by transplanting cadaveric islets or β cells derived from human embryonic stem cells/induced pluripotent stem cells and (2) induction of endogenous regeneration. This review focuses on endogenous regeneration, which can follow two pathways: enhanced replication of existing β cells and formation of new β cells from cells not expressing insulin, either by conversion from a differentiated cell type (transdifferentiation) or differentiation from progenitors (neogenesis)...
September 5, 2017: Cell Metabolism
https://www.readbyqxmd.com/read/28887399/validation-of-post-induction-curie-scores-in-high-risk-neuroblastoma-a-children-s-oncology-group-cog-and-siopen-group-report-on-siopen-hr-nbl1
#11
Gregory A Yanik, Marguerite T Parisi, Arlene Naranjo, Helen Nadel, Michael J Gelfand, Julie R Park, Ruth L Ladenstein, Ulrike Poetschger, Ariane Boubaker, Dominique Valteau-Couanet, Bieke Lambert, Maria-Rita Castellani, Zvi Bar-Sever, Aurore Oudoux, Anna Kaminska, Susan G Kreissman, Barry L Shulkin, Katherine K Matthay
A semi-quantitative metaiodobenzylguanidine (mIBG) scoring method (Curie scoring, CS) was previously examined in the Children's Oncology Group (COG) high risk neuroblastoma trial, COG A3973 (A Randomized Study of Purged vs. Unpurged Peripheral Blood Stem Cell Transplant Following Dose Intensive Induction Therapy for High Risk Neuroblastoma), with a post-induction CS>2 associated with poor event free survival (EFS). The validation of Curie scoring in an independent data set, High Risk Neuroblastoma1/International Society of Pediatric Oncology European Network (SIOPEN/HR-NBL1), is now reported...
September 8, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28885352/successful-5-azacytidine-treatment-of-myeloid-sarcoma-and-leukemia-cutis-associated-with-myelodysplastic-syndrome-a-case-report-and-literature-review
#12
REVIEW
Takayuki Katagiri, Takashi Ushiki, Masayoshi Masuko, Tomoyuki Tanaka, Shukuko Miyakoshi, Kyoko Fuse, Yasuhiko Shibasaki, Jun Takizawa, Sadao Aoki, Hirohito Sone
RATIONALE: Myeloid sarcoma (MS) and leukemia cutis (LC) are extramedullary tumors comprising myeloid blasts. They can occur de novo or concurrently with hematological disorders, usually acute myeloid leukemia (AML). AML chemotherapy is generally the initial therapy for MS and LC, and hematopoietic stem cell transplantation (HSCT) can be considered as additional therapy. However, treatment for older patients who are unable to continue intensive chemotherapy is not currently standardized...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28884412/mesenchymal-stem-cells-mscs-therapy-for-recovery-of-fertility-a-systematic-review
#13
REVIEW
Zahra Fazeli, Atieh Abedindo, Mir Davood Omrani, Sayyed Mohammad Hossein Ghaderian
In recent years, the mesenchymal stem cells (MSCs) have provided the new opportunities to treat different disorders including infertility. Different studies have suggested that the MSCs have ability to differentiate into germ-like cells under specific induction conditions as well as transplantation to gonadal tissues. The aim of this systematic review was to evaluate the results obtained from different studies on MSCs therapy for promoting fertility. This search was done in PubMed and Science Direct databases using key words MSCs, infertility, therapy, germ cell, azoospermia, ovarian failure and mesenchymal stem cell...
September 7, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/28874533/type-1-diabetes-induction-in-humanized-mice
#14
Shulian Tan, Yang Li, Jinxing Xia, Chun-Hui Jin, Zheng Hu, Gaby Duinkerken, Yuying Li, Mohsen Khosravi Maharlooei, Estefania Chavez, Grace Nauman, Nichole Danzl, Maki Nakayama, Bart O Roep, Megan Sykes, Yong-Guang Yang
There is an urgent and unmet need for humanized in vivo models of type 1 diabetes to study immunopathogenesis and immunotherapy, and in particular antigen-specific therapy. Transfer of patient blood lymphocytes to immunodeficient mice is associated with xenogeneic graft-versus-host reactivity that complicates assessment of autoimmunity. Improved models could identify which human T cells initiate and participate in beta-cell destruction and help define critical target islet autoantigens. We used humanized mice (hu-mice) containing robust human immune repertoires lacking xenogeneic graft-versus-host reactivity to address this question...
September 5, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28873970/immunosuppressive-agents-in-adult-kidney-transplantation-in-the-national-health-service-a-model-based-economic-evaluation
#15
Tristan M Snowsill, Jason Moore, Ruben E Mujica Mota, Jaime L Peters, Tracey L Jones-Hughes, Nicola J Huxley, Helen F Coelho, Marcela Haasova, Chris Cooper, Jenny A Lowe, Jo L Varley-Campbell, Louise Crathorne, Matt J Allwood, Rob Anderson
Background: Immunosuppression is required in kidney transplantation to prevent rejection and prolong graft survival. We conducted an economic evaluation to support England's National Institute for Health and Care Excellence in developing updated guidance on the use of immunosuppression, incorporating new immunosuppressive agents, and addressing changes in pricing and the evidence base. Methods: A discrete-time state transition model was developed to simulate adult kidney transplant patients over their lifetime...
July 1, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28873074/adipose-derived-cellular-therapies-in-solid-organ-and-vascularized-composite-allotransplantation
#16
Katlin B Stivers, Jason E Beare, Paula M Chilton, Stuart K Williams, Christina L Kaufman, James B Hoying
PURPOSE OF REVIEW: Controlling acute allograft rejection following vascularized composite allotransplantation requires strict adherence to courses of systemic immunosuppression. Discovering new methods to modulate the alloreactive immune response is essential for widespread application of vascularized composite allotransplantation. Here, we discuss how adipose-derived cellular therapies represent novel treatment options for immune modulation and tolerance induction in vascularized composite allotransplantation...
October 2017: Current Opinion in Organ Transplantation
https://www.readbyqxmd.com/read/28872470/stop-and-go-hematopoietic-cell-transplantation-in-the-era-of-chimeric-antigen-receptor-t-cells-and-checkpoint-inhibitors
#17
Arnab Ghosh, Ioannis Politikos, Miguel-Angel Perales
PURPOSE OF REVIEW: For several decades, hematopoietic cell transplantation (HCT) has been considered the standard curative therapy for many patients with hematological malignancies. In addition to the cytotoxic effects of the chemotherapy and radiation used in the conditioning regimen, the benefits of HCT are derived from a reset of the immune system and harnessing the ability of donor T cells to eliminate malignant cells. With the dawn of the era of immunotherapies in the form of checkpoint inhibitors and chimeric antigen receptor (CAR) T cells, the role of HCT has evolved...
September 1, 2017: Current Opinion in Oncology
https://www.readbyqxmd.com/read/28869950/interleukin-10-gene-modified-dendritic-cell-induced-type-1-regulatory-t-cells-induce-transplant-tolerance-and-impede-graft-versus-host-disease-after-allogeneic-stem-cell-transplantation
#18
Jiangbo Wan, Fang Huang, Siguo Hao, Weiwei Hu, Chuanxu Liu, Wenhao Zhang, Xiaohui Deng, Linjun Chen, Liyuan Ma, Rong Tao
BACKGROUND/AIMS: Tr1 cells can induce peripheral tolerance to self- and foreign antigens, and have been developed as a therapeutic tool for the induction of tolerance to transplanted tissue. We explored the feasibility of generating Tr1 cells by using IL-10 gene-modified recipient DCs (DCLV-IL-10) to stimulate donor naive CD4+ T cells. We also investigated some biological properties of Tr1 cells. METHODS: DCLV-IL-10 were generated through DCs transduced with a lentivirus vector carrying the IL-10 gene, and Tr1 cells were produced by using DCLV-IL-10 to stimulate naive CD4+ T cells...
August 31, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28869816/timed-sequential-therapy-for-acute-myelogenous-leukemia-results-of-a-retrospective-study-of-301-patients-and-review-of-the-literature
#19
Kelly J Norsworthy, Amy E DeZern, Hua-Ling Tsai, Wesley A Hand, Ravi Varadhan, Steven D Gore, Ivana Gojo, Keith Pratz, Hetty E Carraway, Margaret Showel, Michael A McDevitt, Douglas Gladstone, Gabriel Ghiaur, Gabrielle Prince, Amy H Seung, Dina Benani, Mark J Levis, Judith E Karp, B Douglas Smith
Timed sequential therapy (TST) aims to improve outcomes in acute myelogenous leukemia (AML) by harnessing drug-induced cell cycle kinetics of AML, where a second drug is timed to coincide with peak leukemia proliferation induced by the first drugs. We analyzed outcomes in 301 newly diagnosed AML patients treated from 2004-2013 with cytarabine, anthracycline, and etoposide TST induction. Median age was 52 (range 20-74) and complete remission rate 68%. With median follow-up 5.8 years, 5-year DFS and overall survival (OS) were 37% (95% CI 31-45%) and 32% (95% CI 27-38%), respectively...
August 30, 2017: Leukemia Research
https://www.readbyqxmd.com/read/28866278/precise-immune-tolerance-for-hpsc-derivatives-in-clinical-application
#20
Wenliang Zhu, Mengqi Li, Yihui Wu, Baoyang Hu
Human pluripotent stem cells (hPSCs) promise a foreseeing future for regeneration medicine and cell replacement therapy with their abilities to produce almost any types of somatic cells of the body. The complicated immunogenicity of hPSC derivatives and context dependent responses in variable transplantations greatly hurdle the practical application of hPSCs in clinic. Especially for applications of hPSCs, induction of immune tolerance at the same time increases the risks of tumorigenesis. Over the past few years, thanks to the progress in immunology and practices in organ transplantation, endeavors on exploring strategies to induce long term protection of allogeneic transplants have shed light on overcoming this barrier...
August 30, 2017: Cellular Immunology
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