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https://www.readbyqxmd.com/read/28549768/myasthenia-gravis-after-allogeneic-bone-marrow-transplantation-a-case-report-and-literature-review
#1
Yutaka Tsutsumi, Takashi Kamiishi, Ryo Kikuchi, Shinichi Ito, Satomi Matsuoka, Takanori Teshima
A 52-year-old man with acute myeloid leukemia underwent allogeneic hematopoietic stem cell transplantation and developed extensive chronic graft-versus-host disease and myasthenia gravis (MG), which became involved with oculobulbar and proximal upper and lower limb weakness in 677days. In the literature, we identified 24 cases where MG developed after allo-SCT. Graft-versus-host disease development and male recipients of female donors might be prone to the development of posttransplant MG (odds ratio, 3.75)...
May 18, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28546514/the-nuclear-matrix-protein-ciz1-facilitates-localization-of-xist-rna-to-the-inactive-x-chromosome-territory
#2
Rebeca Ridings-Figueroa, Emma R Stewart, Tatyana B Nesterova, Heather Coker, Greta Pintacuda, Jonathan Godwin, Rose Wilson, Aidan Haslam, Fred Lilley, Renate Ruigrok, Sumia A Bageghni, Ghadeer Albadrani, William Mansfield, Jo-An Roulson, Neil Brockdorff, Justin F X Ainscough, Dawn Coverley
The nuclear matrix protein Cip1-interacting zinc finger protein 1 (CIZ1) promotes DNA replication in association with cyclins and has been linked to adult and pediatric cancers. Here we show that CIZ1 is highly enriched on the inactive X chromosome (Xi) in mouse and human female cells and is retained by interaction with the RNA-dependent nuclear matrix. CIZ1 is recruited to Xi in response to expression of X inactive-specific transcript (Xist) RNA during the earliest stages of X inactivation in embryonic stem cells and is dependent on the C-terminal nuclear matrix anchor domain of CIZ1 and the E repeats of Xist CIZ1-null mice, although viable, display fully penetrant female-specific lymphoproliferative disorder...
May 25, 2017: Genes & Development
https://www.readbyqxmd.com/read/28542635/frap-analysis-of-chromatin-looseness-in-mouse-zygotes-that-allows-full-term-development
#3
Masatoshi Ooga, Teruhiko Wakayama
Chromatin looseness, which can be analyzed by fluorescence recovery after photobleaching (FRAP) using eGFP-tagged core histone proteins, is an important index of the differentiation potential of blastomere cells and embryonic stem cells. Whether chromatin looseness is a reliable index of the developmental potential of embryos during ontogenesis is not known. As a necessary first step toward answering this question, we investigated whether FRAP-analyzed embryos are capable of normal preimplantation and full-term development...
2017: PloS One
https://www.readbyqxmd.com/read/28539277/-efficacy-of-gamma-irradiated-adipose-derived-stem-cells-for-treatment-of-thin-endometrium-in-rats
#4
Ming-Xia Ye, Ling Yu, Shu-Fang Wang, Wen-Sheng Fan, Yuan-Guang Meng
OBJECTIVE: Transplantation of adipose-derived stem cells (ADSCs) is associated with potential risks of late complications including tumorigenesis due to the active proliferation of the cells. We aimed to test the effect of transplantation of ADSCs with suppressed proliferation by gamma irradiation in the treatment of thin endometrium in rats. METHODS: ADSCs were isolated from female SD rats and identified by detecting the surface antigens with flow cytometry. After exposure to gamma irradiation at 0, 5 Gy and 10 Gy, the cells were examined for changes in colony-forming ability...
May 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28535182/characterization-of-liver-injury-oval-cell-proliferation-and-cholangiocarcinogenesis-in-glutathione-s-transferase-a3-knockout-mice
#5
Dana R Crawford, Zoran Ilic, Ian Guest, Ginger L Milne, John D Hayes, Stewart Sell
We recently generated glutathione S-transferase (GST) A3 knockout (KO) mice as a novel model to study the risk factors for liver cancer. GSTA3 KO mice are sensitive to the acute cytotoxic and genotoxic effects of aflatoxin B1 (AFB1), confirming the crucial role of GSTA3 in resistance to AFB1. We now report histopathological changes, tumor formation, biochemical changes and gender response following AFB1 treatment as well as the contribution of oxidative stress. Using a protocol of weekly 0.5 mg AFB1/kg administration, we observed extensive oval (liver stem) cell (OC) proliferation within 1-3 weeks followed by microvesicular lipidosis, megahepatocytes, nuclear inclusions, cholangiomas, and small nodules...
May 23, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/28533196/transformation-of-mycosis-fungoides-sezary-syndrome-clinical-characteristics-and-prognosis
#6
Seçil Vural, Bengü Nisa Akay, Ayşenur Botsalı, Erden Atilla, Nehir Parlak, Aylin Okçu Heper, Hatice Şanlı
INTRODUCTION: Transformed mycosis fungoides (T-MF) is a rare variant of mycosis fungoides (MF) with an aggressive course. OBJECTIVES: In this study we aimed to describe characteristics MF/Sezary syndrome (SS) cases with transformation. MATERIALS AND METHODS: Patients diagnosed with transformed MF (T-MF) among MF/SS patients between 2000 and 2014 in a single center are evaluated retrospectively.Demographic, clinical, laboratory, immunophenotype features, response to treatment, survival and histopathologic features were analyzed...
May 23, 2017: Turkish Journal of Haematology: Official Journal of Turkish Society of Haematology
https://www.readbyqxmd.com/read/28529586/immunohistochemical-analysis-of-nanog-expression-and-epithelial-mesenchymal-transition-in-pulmonary-sarcomatoid-carcinoma
#7
Takeshi Tamaki, Toshiki Shimizu, Maiko Niki, Michiomi Shimizu, Tohru Nishizawa, Shosaku Nomura
Pulmonary sarcomatoid carcinomas (PSCs) are defined as a group of poorly differentiated non-small cell lung cancers that demonstrate sarcoma-like differentiation. The mechanism of mesenchymal differentiation in PSC is epithelial-mesenchymal transition (EMT). The expression of homeobox protein NANOG (NANOG), which regulates the pluripotency of embryonic stem cells, is associated with the EMT process. Therefore, the present study aimed to assess the expression level of NANOG and the status of the EMT process in PSC...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28528817/tracing-and-characterizing-the-development-of-transplanted-female-germline-stem-cells-in%C3%A2-vivo
#8
Changqing Wu, Bo Xu, Xiaoyong Li, Wenzhi Ma, Ping Zhang, Xuejin Chen, Ji Wu
It has long been believed that most female mammalian species lose the ability to generate oocytes in postnatal ovaries. Recent evidence has demonstrated the isolation and culture of female germline stem cells (FGSCs) from adult mice and humans. However, the process and mechanisms of FGSC differentiation in vivo following transplantation have not yet been studied. Here, we isolated and characterized FGSCs from a single EGFP-transgenic mouse, and traced the development and behavior of transplanted FGSCs (F-TFs) in vivo...
May 6, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28525352/evaluation-of-endocrine-and-metabolic-dysfunctions-after-hematopoietic-stem-cell-transplantation-in-children-a-study-from-turkey
#9
Dilek Gurlek Gokcebay, Fatih Azik, Cengiz Bayram, Arzu Yazal Erdem, Ali Fettah, Pamir Isik, Nese Yarali, Fatma Demirel, Bahattin Tunc, Namik Ozbek
BACKGROUND: Endocrine organs are highly susceptible to effects of high-dose chemotherapy. The objective of the study was to evaluate endocrine and metabolic complications after hematopoietic stem cell transplantation (HSCT) in children. METHODS: The patients who underwent HSCT in our center from April 2010 to October 2014 with at least 1 year follow-up were analyzed retrospectively. RESULTS: One-hundred children (M/F:59/41; mean age 8.9±4...
May 18, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28524885/ocular-surface-analysis-in-hematological-patients-before-and-after-allogeneic-hematopoietic-stem-cell-transplantation-implication-for-daily-clinical-practice
#10
G Giannaccare, F Bonifazi, M Sessa, E Dan, M Arpinati, M Fresina, G Bandini, M Cavo, P Versura, E C Campos
PurposeTo evaluate ocular surface parameters before and after hematopoietic stem cell transplantation (HSCT) and to correlate them with clinical and transplant variables.MethodsThis is a retrospective analysis of data from 93 patients affected by hematological malignancies undergoing HSCT. Values from Ocular Surface Disease Index, Schirmer test, Break-up Time, ocular surface staining, and Meibomian Gland Dysfunction score obtained before HSCT and 3-6 months after were retrieved from charts. Diagnosis and staging of dry eye (DE) disease was performed according to Dry Eye WorkShop criteria...
May 19, 2017: Eye
https://www.readbyqxmd.com/read/28524827/impact-of-human-leukocyte-antigen-loci-and-haplotypes-on-intestinal-acute-graft-versus-host-disease-after-human-leukocyte-antigen-matched-sibling-peripheral-blood-stem-cell-transplantation
#11
Fa-Hong Yan, Mei Wang, Jian-Feng Yao, Er-Lie Jiang, Ming-Zhe Han
BACKGROUND: Acute graft-versus-host disease (aGVHD) is a common and severe complication of allogeneic hematopoietic stem cell transplantation (allo-HSCT). Some studies have found that the presence of certain specific human leukocyte antigen (HLA) loci could affect the occurrence of aGVHD. Meanwhile, the impact of HLA haplotypes on aGVHD has been rarely studied. This study aimed to investigate the effects of HLA loci and haplotypes on intestinal aGVHD. METHODS: Totally, 345 consecutive patients undergoing first HLA-matched sibling peripheral blood stem cell transplantation (PBSCT) from February 2004 to June 2013 at Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, were enrolled in this study...
June 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28524369/therapeutic-roles-of-telocytes-in-ova-induced-acute-asthma-in-mice
#12
Ling Ye, Dongli Song, Meiling Jin, Xiangdong Wang
Telocytes (TCs) newly discovered as the mesenchyme-derived interstitial cells were found to have supportive effects on mesenchymal stem cells (MSCs). The present study aimed at investigating effects of TCs or TCs gathered with MSCs on experimental airway inflammation and hyper-responsiveness. The TCs were isolated from the lung tissue of the female BALB/c mice. The ovalbumin (OVA)-induced asthma model was established. TCs (1 × 10(6) /2 × 10(6) ) and/or MSCs (1 × 10(6) ) were injected through mice tail vein for consecutive three days before OVA excited the mice...
May 19, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28523122/sex-differences-in-rat-placental-development-from-pre-implantation-to-late-gestation
#13
J I Kalisch-Smith, D G Simmons, M Pantaleon, K M Moritz
BACKGROUND: A male fetus is suggested to be more susceptible to in utero and birth complications. This may be due in part to altered morphology or function of the XY placenta. We hypothesised that sexual dimorphism begins at the blastocyst stage with sex differences in the progenitor trophectoderm (TE) and its derived trophoblast lineages, as these cells populate the majority of cell types within the placenta. We investigated sex-specific differences in cell allocation in the pre-implantation embryo and further characterised growth and gene expression of the placental compartments from the early stages of the definitive placenta through to late gestation...
2017: Biology of Sex Differences
https://www.readbyqxmd.com/read/28522430/the-drosophila-lin54-homolog-mip120-controls-two-aspects-of-oogenesis
#14
Mei-Hsin Cheng, Laura Andrejka, Paul J Vorster, Albert Hinman, Joseph S Lipsick
The conserved multi-protein MuvB core associates with the Myb oncoproteins and with the RB-E2F-DP tumor suppressor proteins in complexes that regulate cell proliferation, differentiation, and apoptosis. Drosophila Mip120, a homolog of LIN54, is a sequence-specific DNA-binding protein within the MuvB core. A mutant of Drosophila mip120 was previously shown to cause female and male sterility. We now show that Mip120 regulates two different aspects of oogenesis. First, in the absence of the Mip120 protein, egg chambers arrest during the transition from stage 7 to 8 with a failure of the normal program of chromosomal dynamics in the ovarian nurse cells...
May 18, 2017: Biology Open
https://www.readbyqxmd.com/read/28514773/a-feasibility-study-of-the-full-outpatient-conduction-of-hematopoietic-transplants-in-persons-with-multiple-sclerosis-employing-autologous-non-cryopreserved-peripheral-blood-stem-cells
#15
Guillermo J Ruiz-Argüelles, Andrés A León-Peña, Mónica León-González, Ana Karen Nuñez-Cortes, Juan Carlos Olivares-Gazca, Iván Murrieta-Alvarez, Jocelyn Vargas-Espinosa, Emilio Medina-Ceballos, Yahveth Cantero-Fortiz, Alejandro Ruiz-Argüelles, Manuel A Ruiz-Delgado, Rodrigo J Ruiz-Delgado, Guillermo Ruiz-Reyes, Manuel Priesca-Marín, Merari Starlight Torres-Priego, David Blumenkron-Marroquin, Guillermo J Ruiz-Delgado
BACKGROUND: With the goal of achieving immune system reset, autologous hematopoietic stem cell transplantations have been performed in patients with multiple sclerosis (MS). MATERIAL AND METHODS: Two hundred and eighty-six consecutive patients with MS were autografted in a single center using non-frozen peripheral blood stem cells (PBSCs), on an outpatient basis and conditioning with cyclophosphamide and rituximab. The protocol was registered in ClinicalTrials.gov identifier NCT02674217...
May 18, 2017: Acta Haematologica
https://www.readbyqxmd.com/read/28513420/optimization-of-glioblastoma-mouse-orthotopic-xenograft-models-for-translational-research
#16
Susan M Irtenkauf, Susan Sobiechowski, Laura A Hasselbach, Kevin K Nelson, Andrea D Transou, Enoch T Carlton, Tom Mikkelsen, Ana C deCarvalho
Glioblastoma is an aggressive primary brain tumor predominantly localized to the cerebral cortex. We developed a panelofpatient-derived mouse orthotopic xenografts (PDOX) for preclinical drug studies by implanting cancer stem cells (CSC) cultured from fresh surgical specimens intracranially into 8-wk-old female athymic nude mice. Here we optimize the glioblastoma PDOX model by assessing the effect of implantation location on tumor growth, survival, and histologic characteristics. To trace the distribution of intracranial injections, toluidine blue dye was injected at 4 locations with defined mediolateral, anterioposterior, and dorsoventral coordinates within the cerebral cortex...
May 16, 2017: Comparative Medicine
https://www.readbyqxmd.com/read/28511686/intrathymic-injection-of-hematopoietic-progenitor-cells-establishes-functional-t-cell-development-in-a-mouse-model-of-severe-combined-immunodeficiency
#17
Andrea Z Tuckett, Raymond H Thornton, Richard J O'Reilly, Marcel R M van den Brink, Johannes L Zakrzewski
BACKGROUND: Even though hematopoietic stem cell transplantation can be curative in patients with severe combined immunodeficiency, there is a need for additional strategies boosting T cell immunity in individuals suffering from genetic disorders of lymphoid development. Here we show that image-guided intrathymic injection of hematopoietic stem and progenitor cells in NOD-scid IL2rγ(null) mice is feasible and facilitates the generation of functional T cells conferring protective immunity...
May 16, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28510779/modelling-foetal-exposure-to-maternal-smoking-using-hepatoblasts-from-pluripotent-stem-cells
#18
Baltasar Lucendo-Villarin, Panagiotis Filis, Madeleine J Swortwood, Marilyn A Huestis, Jose Meseguer-Ripolles, Kate Cameron, John P Iredale, Peter J O'Shaughnesy, Paul A Fowler, David C Hay
The liver is a dynamic organ which is both multifunctional and highly regenerative. A major role of the liver is to process both endo and xenobiotics. Cigarettes are an example of a legal and widely used drug which can cause major health problems for adults and constitute a particular risk to the foetus, if the mother smokes during pregnancy. Cigarette smoke contains a complex mixture of thousands of different xenobiotics, including nicotine and polycyclic aromatic hydrocarbons. These affect foetal development in a sex-specific manner, inducing sex-dependant molecular responses in different organs...
May 16, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28508054/flexible-adaptation-of-male-germ-cells-from-female-ipscs-of-endangered-tokudaia-osimensis
#19
Arata Honda, Narantsog Choijookhuu, Haruna Izu, Yoshihiro Kawano, Mizuho Inokuchi, Kimiko Honsho, Ah-Reum Lee, Hiroki Nabekura, Hiroshi Ohta, Tomoyuki Tsukiyama, Yasuhide Ohinata, Asato Kuroiwa, Yoshitaka Hishikawa, Mitinori Saitou, Takamichi Jogahara, Chihiro Koshimoto
In mammals, the Y chromosome strictly influences the maintenance of male germ cells. Almost all mammalian species require genetic contributors to generate testes. An endangered species, Tokudaia osimensis, has a unique sex chromosome composition XO/XO, and genetic differences between males and females have not been confirmed. Although a distinctive sex-determining mechanism may exist in T. osimensis, it has been difficult to examine thoroughly in this rare animal species. To elucidate the discriminative sex-determining mechanism in T...
May 2017: Science Advances
https://www.readbyqxmd.com/read/28506355/-effects-of-adipose-derived-stem-cells-and-non-methylated-cpg-oligodeoxynucleotides-on-peripheral-blood-cd4-cd25-regulatory-t-cells-in-young-mice-with-food-allergy
#20
Xu-Lin Chen, Cheng-Zhong Zheng
OBJECTIVE: To investigate the effects of adipose-derived stem cells (ADSC) and non-methylated CpG-oligodeoxynucleotides (CpG-ODN) on the expression of peripheral blood CD4(+)CD25(+) regulatory T (Treg) cells in young mice with food allergy, as well as their immune intervention effects. METHODS: A total of 40 female BALB/c mice were randomly divided into control group, allergic group, ADSC treatment group, and CpG-ODN treatment group, with 10 mice in each group. A mouse model of food allergy was established by intraperitoneal injection and intragastric administration of ovalbumin (OVA) for sensitization and challenge...
May 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
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