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https://www.readbyqxmd.com/read/29793116/patterns-of-invasive-growth-in-malignant-gliomas-the-hippocampus-emerges-as-an-invasion-spared-brain-region
#1
Awais A Mughal, Lili Zhang, Artem Fayzullin, Andres Server, Yuping Li, Yingxi Wu, Rainer Glass, Torstein Meling, Iver A Langmoen, Trygve B Leergaard, Einar O Vik-Mo
BACKGROUND: Widespread infiltration of tumor cells into surrounding brain parenchyma is a hallmark of malignant gliomas, but little data exist on the overall invasion pattern of tumor cells throughout the brain. METHODS: We have studied the invasive phenotype of malignant gliomas in two invasive mouse models and patients. Tumor invasion patterns were characterized in a patient-derived xenograft mouse model using brain-wide histological analysis and magnetic resonance (MR) imaging...
May 21, 2018: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/29793087/skin-allografting-activates-anti-tumor-immunity-and-suppresses-growth-of-colon-cancer-in-mice
#2
Xiang Li, Xu Lan, Grace Wang, Yi Liu, Ke Zhao, Shan-Zheng Lu, Xiao-Xi Xu, Gang-Gang Shi, Kui Ye, Bao-Ren Zhang, Yi-Ming Zhao, Hong-Qiu Han, Cai-Gan Du, Thomas E Ichim, Hao Wang
INTRODUCTION: The tumor cells could escape from the immune elimination through the immunoediting mechanisms including the generation of immunosuppressive or immunoregulative cells. By contrast, allograft transplantation could activate the immune system and induce a strong allogenic response. The aim of this study was to investigate the efficacy of allogenic skin transplantation in the inhibition of tumor growth through the activation of allogenic immune response. METHODS: Full-thickness skin transplantation was performed from C57BL/6 (H-2b ) donors to BALB/c (H-2d ) recipients that were receiving subcutaneous injection of isogenic CT26 colon cancer cells (2 × 106 cells) at the same time...
May 21, 2018: Translational Oncology
https://www.readbyqxmd.com/read/29793046/validation-of-the-revised-pam-score-in-patients-with-aml-undergoing-allogeneic-hematopoietic-stem-cell-transplantation
#3
Jan M Middeke, Frederike Kollinger, Henning Baldauf, Friedrich Stölzel, Martin Wermke, Malte von Bonin, Katja Sockel, Cornelia S Link, Raphael Teipel, Christoph Röllig, Christian Thiede, Uwe Platzbecker, Gerhard Ehninger, Martin Bornhäuser, Johannes Schetelig
PURPOSE: Despite recent advances, allogeneic hematopoietic stem cell transplantation (alloHSCT) continues to be accompanied by a high rate of morbidity and mortality. Several scores have been developed to predict outcome after HSCT. The PAM score has been recently revised, and utilizes information on patient age, donor type, disease risk, cytomegalovirus (CMV) serostatus of patients and donors, and the forced expiratory volume in one second (FEV1). The aim of this study was to analyze the predictive power of the PAM score in an independent, large cohort of acute myeloid leukemia (AML) patients...
May 21, 2018: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29792912/heat-shock-protein-b1-is-required-for-the-prolactin-induced-cytoprotective-effects-on-pancreatic-islets
#4
Rosangela Am Wailemann, Letícia F Terra, Talita C de Oliveira, Ancély F Dos Santos, Vinícius M Gomes, Leticia Labriola
The success of islet transplantation has improved lately. Unfortunately, it is still compromised by cell loss. We have shown that prolactin (PRL) inhibits beta-cell apoptosis and up-regulates the antiapoptotic Heat Shock Protein B1 (HSPB1) in human islets. Since its function in pancreatic islets has not been studied, we explored the role of HSPB1 in PRL-induced beta-cell survival. The significant PRL-induced cytoprotection in control cells was abrogated in HSPB1 silenced cells, overexpression of HSPB1 recovered survival...
May 21, 2018: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/29792719/-sinusoidal-obstruction-syndrome-induced-by-monocrotaline-in-a-large-animal-experiment-a-pilot-study
#5
R Pálek, V Liška, V Třeška, J Rosendorf, M Emingr, V Tégl, A Králíčková, K Bajcurová, M Jiřík, Z Tonar
INTRODUCTION: Sinusoidal obstruction syndrome (SOS) is a disease which is caused by toxic injury to hepatic sinusoids. This syndrome is most frequently caused by myeloablative radiochemotherapy in patients before hematopoietic stem cells transplantation and also by oxaliplatin mainly in patients with colorectal liver metastases. The aim of this study was to establish a large animal model of SOS, which would enable further study of this disease and facilitate translation of experimental outcomes into human medicine...
2018: Rozhledy V Chirurgii: Měsíčník Československé Chirurgické Společnosti
https://www.readbyqxmd.com/read/29792527/enteric-neural-stem-cells-expressing-insulin-like-growth-factor-1-a-novel-cellular-therapy-for-hirschsprung-s-disease-in-mouse-model
#6
Wei Liu, Lijuan Zhang, Rongde Wu
Transplanting enteric neural stem cells (ENSCs) is an innovative approach for replacing enteric neurons in Hirschsprung's disease (HSCR). However, posttransplantation cell survival and differentiation limit efficacy. We aimed to investigate whether transplantation of ENSCs engineered with insulin-like growth factor 1 (IGF-1) could improve survival and differentiation of the engrafted cells and promote functional recovery of the aganglionic colon. ENSCs were isolated from the intestine of neonatal mice and genetically modified to express IGF-1...
May 24, 2018: DNA and Cell Biology
https://www.readbyqxmd.com/read/29792386/disparate-effects-of-shb-gene-deficiency-on-disease-characteristics-in-murine-models-of-myeloid-b-cell-and-t-cell-leukemia
#7
Maria Jamalpour, Xiujuan Li, Karin Gustafsson, Jeffrey W Tyner, Michael Welsh
The Src homology-2 domain protein B is an adaptor protein operating downstream of tyrosine kinases. The Shb gene knockout has been found to accelerate p210 Breakpoint cluster region-cAbl oncogene 1 tyrosine kinase-induced leukemia. In human myeloid leukemia were tumors with high Src homology-2 domain protein B mRNA content, tumors were, however, associated with decreased latency and myeloid leukemia exhibiting immune cell characteristics. Thus, the aim of this study was to investigate the effects of Shb knockout on the development of leukemia in three additional models, that is, colony stimulating factor 3 receptor-T618I-induced neutrophilic leukemia, p190 Breakpoint cluster region-cAbl oncogene 1 tyrosine kinase-induced B-cell leukemia, and G12D-Kras-induced T-cell leukemia/thymic lymphoma...
April 2018: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/29792274/ex-vivo-expanded-natural-regulatory-t-cells-from-patients-with-end-stage-renal-disease-or-kidney-transplantation-are-useful-for-autologous-cell-therapy
#8
Sybille Landwehr-Kenzel, Anne Zobel, Henrike Hoffmann, Niels Landwehr, Michael Schmueck-Henneresse, Thomas Schachtner, Andy Roemhild, Petra Reinke
Novel concepts employing autologous, ex vivo expanded natural regulatory T cells (nTreg) for adoptive transfer has potential to prevent organ rejection after kidney transplantation. However, the impact of dialysis and maintenance immunosuppression on the nTreg phenotype and peripheral survival is not well understood, but essential when assessing patient eligibility. The current study investigates regulatory T-cells in dialysis and kidney transplanted patients and the feasibility of generating a clinically useful nTreg product from these patients...
June 2018: Kidney International
https://www.readbyqxmd.com/read/29791180/-heart-transplantation-and-follow-up-treatment-with-al-amyloidosis-in-5-patients
#9
Zdeněk Adam, Eva Ozábalová, Petr Němec, Helena Bedáňová, Milan Kuman, Jan Krejčí, Lenka Špinarová, Víta Žampachová, Zdeňka Čermáková, Luděk Pour, Marta Krejčí, Viera Sanecká, Martin Štork, Tomáš Pika, Jan Straub, Dagmar Adamová, Yvetta Stavařová, Zdeněk Král, Jiří Mayer
The prognosis for patients with cardiac impairment due to AL-amyloid deposition and severe cardiac insufficiency is poor, with a survival median in the order of months. The classical treatment of AL-amyloidosis in combination with cardiac insufficiency is very poorly tolerated and the treatment of such patients is associated with considerably higher mortality than among other patients with AL-amyloidosis. If, however, patients with an isolated or another dominating cardiac impairment, without severe damage to other organs and tissues, have a heart transplant performed, their cardiovascular condition will significantly improve as a result, along with their ability to tolerate any kind of treatment for AL-amyloidosis including that using high-dose chemotherapy with a transplant of autologous hematopoietic stem cells...
2018: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/29791053/impact-of-ruxolitinib-pretreatment-on-outcomes-after-allogeneic-stem-cell-transplantation-in-patients-with-myelofibrosis
#10
Sharifah Shahnaz Syed Abd Kadir, Maximilian Christopeit, Wulf Gerald, Eva Wagner, Martin Bornhauser, Thomas Schroeder, Martina Crysandt, Karin Mayer, Julia Jonas, Matthias Stelljes, Anita Badbaran, Francis Ayuketang Ayuk, Ioanna Triviai, Dominik Wolf, Christine Wolschke, Nicolaus Kröger
INTRODUCTION: Ruxolitinib is the first approved drug for treatment of myelofibrosis, but its impact of outcome after allogeneic stem cell transplantation (ASCT) is unknown. PATIENTS AND METHODS: We reported on 159 myelofibrosis patients (pts) with a median age of 59 years (r: 28 - 74) who received reduced intensity ASCT between 2000 and 2015 in 8 German centers from related (n = 23), matched (n=86) or mismatched (n=50) unrelated donors. Forty-six (29%) patients received ruxolitinib at any time point prior to ASCT...
May 23, 2018: European Journal of Haematology
https://www.readbyqxmd.com/read/29791047/cell-surface-engineering-for-advanced-cell-therapy
#11
Jung Kyu Lee, Insung S Choi, Tong In Oh, EunAh Lee
Stem cells opened great opportunity to overcome diseases that conventional therapy had only limited success. Use of scaffolds made from biomaterials not only helps handling of stem cells for delivery or transplantation but also supports enhanced cell survival. Likewise, cell encapsulation can provide stability for living animal cells even in a state of separateness. Although various chemical reactions were tried to encapsulate stolid microbial cells such as yeasts, a culture environment for the growth of animal cells allows only highly biocompatible reactions...
May 23, 2018: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29790808/comparison-of-time-to-engraftment-between-autologous-patients-receiving-washed-versus-non-washed-cryopreserved-peripheral-blood-stem-cell-products
#12
Ronit Reich-Slotky, Sarah S Makhani, Ljiljana V Vasovic, Roger N Pearse, Adriana Rossi, Adrianne Philips, Melissa M Cushing, Amrita D Singh, Koen van-Besien
Washing cryopreserved peripheral blood stem cell (PBSC) products can decrease infusion-related adverse reactions but can also result in cell loss and reduced cell viability. To assess the risk and benefit of washing products, we compared the time to neutrophil and platelet engraftment between autologous patients that received washed products (n = 201) and non-washed products (n = 89). The effect of the other variables, including age, gender, diagnosis, transplant dose, method of stem cell mobilization, and growth factor support regimen post-transplant, was assessed...
May 23, 2018: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/29790621/generation-and-application-of-human-induced-stem-cell-memory-t-it-scm-cells-for-adoptive-immunotherapy
#13
Taisuke Kondo, Yuuki Imura, Shunsuke Chikuma, Sana Hibino, Setsuko Omata-Mise, Makoto Ando, Takashi Akanuma, Mana Iizuka, Ryota Sakai, Rimpei Morita, Akihiko Yoshimura
Adoptive T cell therapy is an effective strategy for cancer immunotherapy. However, infused T cells frequently become functionally exhausted, and consequently offer a poor prognosis after transplantation into patients. Adoptive transfer of tumor antigen-specific stem cell memory T (TSCM ) cells is expected to overcome this shortcoming since TSCM cells are close to naïve T cells, but are also highly proliferative, long-lived, and produce a large number of effector T cells in response to antigen stimulation...
May 23, 2018: Cancer Science
https://www.readbyqxmd.com/read/29790481/antiviral-combination-therapy-for-cytomegalovirus-infection-in-high-risk-infants
#14
Surabhi B Vora, Adam W Brothers, Alpana Waghmare, Janet A Englund
BACKGROUND: Cytomegalovirus (CMV) infection is a major risk factor for mortality in infants with severe combined immunodeficiency (SCID) and other profound immune defects. Specific antiviral therapy must be initiated early and aggressively because of the potential for antiviral resistance, rapid dissemination and poor transplant outcomes. Combination antiviral therapy is routinely administered for some viral infections, but the value of this approach for the treatment of CMV is unclear...
May 23, 2018: Antiviral Therapy
https://www.readbyqxmd.com/read/29790457/comparison-of-different-conditioning-regimens-of-haploidentical-hematopoietic-stem-cell-transplant-in-patients-with-acute-myeloid-leukemia
#15
Yujie Jiang, Xiaosheng Fang, Xiaohui Sui, Xin Liu, Ying Li, Xianghua Wang, Hongzhi Xu, Lingyan Zhang, Xin Wang
OBJECTIVES: We evaluated the safety and efficacy of 2 conditioning regimens (busulfan/fludarabine vs modified busulfan/cyclophosphamide) in patients with acute myeloid leukemia undergoing haploidentical hematopoietic stem cell transplant. MATERAILS AND METHODS: Twenty patients with primary acute myeloid leukemia had been randomized into busulfan/fludarabine and modified busulfan/cyclophosphamide groups. We retrospectively compared hematopoietic engraftment, regimen-related toxicity, graft-versus-host disease, transplant-related mortality, leukemia-free survival, and overall survival between the groups...
May 23, 2018: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29790427/simulated-microgravity-culture-enhances-the-neuroprotective-effects-of-human-cranial-bone-derived-mesenchymal-stem-cells-in-traumatic-brain-injury
#16
Takashi Otsuka, Takeshi Imura, Kei Nakagawa, Looniva Shrestha, Shinya Takahashi, Yumi Kawahara, Taijiro Sueda, Kaoru Kurisu, Louis Yuge
Fundamental cures of central nervous system (CNS) diseases are rarely achieved due to the low regenerative ability of the CNS. Recently, cell-based therapy using mesenchymal stem cells (MSCs) has been explored as effective treatments for CNS diseases. Among the various tissue-derived MSCs, we have isolated human cranial bone-derived MSCs (cMSCs) in our laboratory. In addition, we have focused on simulated microgravity (MG) as a valuable culture environment of MSCs. However, the detailed mechanisms underlying functional recovery from the transplantation of MSCs cultured under MG conditions remain unclear...
May 23, 2018: Stem Cells and Development
https://www.readbyqxmd.com/read/29790422/autologous-induced-pluripotent-stem-cell-derived-neurons-to-treat-parkinson-s-disease
#17
Jeanne F Loring
In 2012, we planned a program to develop a neuron replacement therapy for Parkinson's disease (PD) that would have the greatest promise to help the patients. PD is a movement disorder caused by the progressive, inevitable loss of a specific type of dopamine neuron in the brain. The only viable treatment to reverse the progress of the disease is to replace those neurons; we decided to make dopamine neurons that matched the patients, by differentiating induced pluripotent stem cells (iPSCs) that we generated from individuals with PD...
May 23, 2018: Stem Cells and Development
https://www.readbyqxmd.com/read/29790403/the-amelioration-of-pain-related-behavior-in-mice-with-chronic-spinal-cord-injury-treated-with-neural-stem-progenitor-cell-transplantation-combined-with-treadmill-training
#18
Syoichi Tashiro, Soraya Nishimura, Munehisa Shinozaki, Morito Takano, Tsunehiko Konomi, Osahiko Tsuji, Narihito Nagoshi, Yoshiaki Toyama, Meigen Liu, Hideyuki Okano, Masaya Nakamura
Progress in regenerative medicine is realizing the possibility of neural regeneration and functional recovery in spinal cord injury (SCI). Recently, rehabilitation has attracted much attention in respect to the synergistic promotion of functional recovery in combination with neural stem/progenitor cell (NS/PC) transplantation, even in the chronic refractory phase of SCI. Nevertheless, sensory disturbance is one of the most prominent sequelae, even though the effects of combination or single therapies have been investigated almost only in the context of motor recovery...
May 23, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29790274/polymer-scafffolds-for-pancreatic-islet-transplantion-progress-and-challenges
#19
Alexandra M Smink, Bart J de Haan, Jonathan R T Lakey, Paul de Vos
Pancreatic-islet transplantation is a safe and non-invasive therapy for Type 1 diabetes. However, the currently applied site for transplantation, i.e. the liver, is not the most optimal site for islet survival. Since the human body has shortcomings in providing an optimal site, artificial transplantation sites have been proposed. Such an artificial site could consist of a polymeric scaffold that mimics the pancreatic microenvironment and supports islet function. Recently, remarkable progress has been made in the technology of engineering scaffolds...
May 22, 2018: American Journal of Transplantation
https://www.readbyqxmd.com/read/29790247/the-promotion-of-tissue-engineering-blood-vessel-patency-by-cgs21680-through-regulating-pro-inflammatory-activities-of-endothelial-progenitor-cell
#20
Wen Chen, Li Xiao, Jian Bai, Wen Zeng, Mingcan Yang, Bingyi Shi, Chuhong Zhu
The mobilization and homing of endothelial progenitor cells (EPCs) contribute to the rapid endothelialization of tissue engineering blood vessel (TEBV). Inflammation can affect TEBV patency, and monocytes/macrophages (MM) are the main effector cells. But it is not clear how EPCs interact with MM after TEBV transplantation. Our results showed acellular materials would not directly cause acute and severe inflammatory responses but activate E-selectin expression in homing EPCs, gradually promoting the polarization of MM to the M1...
May 23, 2018: Journal of Biomedical Materials Research. Part A
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