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https://www.readbyqxmd.com/read/29774098/establishment-of-primary-cell-culture-and-an-intracranial-xenograft-model-of-pediatric-ependymoma-a-prospect-for-therapy-development-and-understanding-of-tumor-biology
#1
Lorena Favaro Pavon, Tatiana Tais Sibov, Silvia Regina Caminada de Toledo, Daniela Mara de Oliveira, Francisco Romero Cabral, Jean Gabriel de Souza, Pamela Boufleur, Luciana C Marti, Jackeline Moraes Malheiros, Edgar Ferreira da Cruz, Fernando F Paiva, Suzana M F Malheiros, Manoel A de Paiva Neto, Alberto Tannús, Sérgio Mascarenhas de Oliveira, Nasjla Saba Silva, Andrea Maria Cappellano, Antonio Sérgio Petrilli, Ana Marisa Chudzinski-Tavassi, Sérgio Cavalheiro
Background: Ependymoma (EPN), the third most common pediatric brain tumor, is a central nervous system (CNS) malignancy originating from the walls of the ventricular system. Surgical resection followed by radiation therapy has been the primary treatment for most pediatric intracranial EPNs. Despite numerous studies into the prognostic value of histological classification, the extent of surgical resection and adjuvant radiotherapy, there have been relatively few studies into the molecular and cellular biology of EPNs...
April 24, 2018: Oncotarget
https://www.readbyqxmd.com/read/29772358/tumor-to-lesion-metastasis-a-case-report-of-carcinoma-metastasis-to-multiple-sclerosis-lesion
#2
Jian-Qiang Lu, Suresh Menon, Crystal Fong, Boleslaw Lach, Christopher Power
BACKGROUND: The term of "tumor-to-lesion metastasis" is an extension of "tumor-to-tumor metastasis", which is a rare but well-documented phenomenon. Tumor metastasis to the meninges and/or central nervous system (CNS) is rare in patents with multiple sclerosis (MS), although MS lesions bear many similarities to the primary tumor microenvironment and the metastatic niche. We present the first case of malignant tumor metastasis to MS lesions with immunophenotyping of inflammatory cells in the metastatic foci...
May 14, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29771407/association-of-sox11-gene-expression-withclinical-features-and-prognosis-of-mantle-cell-lymphoma
#3
J-X He, Y-F Xi, L-P Su, N Gao, E-W Xu, L-W Xie, L-Y Wang, Y-P Zheng, W-E Han, J Chang, H-W Wang
OBJECTIVE: To study the expression of SOX11 in the patients with mantle cell lymphoma (MCL) and explore the clinical values of SOX11 in MCL. PATIENTS AND METHODS: In the paraffin-embedded MCL tissues of 75 patients diagnosed in the Department of Hematology, Shanxi Tumor Hospital, were performed the immunohistochemical labeling of Ki67 and SOX11 by the EnVision method. Meanwhile, the expression of SOX11 mRNA was also detected by reverse transcriptase-polymerase chain reaction (RT-PCR), and the association of SOX11 with such prognostic indexes as pathological typing, staging, immunophenotyping, and MIPI was analyzed using the statistical method...
May 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29770705/gingival-mesenchymal-stem-cells-outperform-haploidentical-dental-pulp-derived-mesenchymal-stem-cells-in-proliferation-rate-migration-ability-and-angiogenic-potential
#4
Ioannis Angelopoulos, Claudia Brizuela, Maroun Khoury
High donor variation makes comparison studies between different dental sources dubious. Dental tissues offer a rare opportunity for comparing the biological characteristics of haploidentical mesenchymal stem cells (MSCs) isolated from the same donor. The objective was to identify the optimal dental source of MSCs through a biological and functional comparison of haploidentical MSCs from gingival (GMSCs) and dental pulp stem cells (DPSCs) focusing mainly on their angiogenic potential. The comparison study included (1) surface markers expression, (2) mesodermal differentiation capacity (chondrogenic, adipogenic, and osteogenic), (3) proliferation, (4) migration potential, (5) ability to form colony units, and (6) angiogenic potential in vitro and in vivo...
January 1, 2018: Cell Transplantation
https://www.readbyqxmd.com/read/29769264/rhoa-g17v-is-sufficient-to-induce-autoimmunity-and-promotes-t-cell-lymphomagenesis-in-mice
#5
Samuel Y Ng, Leon Brown, Kristen Stevenson, Tiffany deSouza, Jon C Aster, Abner Louissaint, David M Weinstock
Patients with angioimmunoblastic T-cell lymphoma (AITL) and other peripheral T-cell lymphomas (PTCL) that harbor features of follicular helper T (TFH) cells have a very poor prognosis. These lymphomas commonly present with paraneoplastic autoimmunity and lymphopenia. RhoA G17V mutation is present in 60% of TFH-like lymphomas but its role in tumorigenesis is poorly understood. We generated transgenic mice that express RhoA G17V under the control of murine CD4 regulatory elements at levels comparable to a heterozygous mutation (tgRhoA mice)...
May 16, 2018: Blood
https://www.readbyqxmd.com/read/29768357/dysembryoplastic-neuroepithelial-tumor-like-pilocytic-astrocytoma-a-case-report
#6
Jia-Ming Liao, Wei Wang, Jing Xie, Hai-Bo Wu
RATIONALE: Pilocytic astrocytoma (PA) typically shows biphasic pattern with a mixture of loose microcystic and compact regions, in which it is not uncommon to see heterogeneous morphology. However, there has not been reported in the literatures of the PA type that shows similarity to dysembryoplastic neuroepithelial tumor (DNT) in both histological morphology and immunophenotype. PATIENT CONCERNS: The present study described a case of PA affecting the right temporal-occipital lobe in a 22-year-old male patient...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29762555/global-transcriptome-analysis-identifies-weight-regain-induced-activation-of-adaptive-immune-responses-in-white-adipose-tissue-of-mice
#7
D S Kyung, H R Sung, Y J Kim, K D Kim, S Y Cho, J H Choi, Y-H Lee, I Y Kim, J K Seong
OBJECTIVE: Studies have indicated that weight regain following weight loss predisposes obese individuals to metabolic disorders; however, the molecular mechanism of this potential adverse effect of weight regain is not fully understood. Here we investigated global transcriptome changes and the immune response in mouse white adipose tissue caused by weight regain. DESIGN: We established a diet switch protocol to compare the effects of weight regain with those of weight gain without precedent weight loss, weight loss maintenance and chow diet...
December 7, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29761525/ets2-is-a-prostate-basal-cell-marker-and-is-highly-expressed-in-prostate-cancers-aberrantly-expressing-p63
#8
Alba Torres, Mohammed Alshalalfa, Elai Davicioni, Anuj Gupta, Srinivasan Yegnasubramanian, Sarah J Wheelan, Jonathan I Epstein, Angelo M De Marzo, Tamara L Lotan
BACKGROUND: Rare prostate carcinomas aberrantly express p63 and have an immunophenotype intermediate between basal and luminal cells. Here, we performed gene expression profiling on p63-expressing prostatic carcinomas and compared them to usual-type adenocarcinoma. We identify ETS2 as highly expressed in p63-expressing prostatic carcinomas and benign prostate basal cells, with lower expression in luminal cells and primary usual-type adenocarcinomas. METHODS: A total of 8 p63-expressing prostate carcinomas at radical prostatectomy were compared to 358 usual-type adenocarcinomas by gene expression profiling performed on formalin fixed paraffin embedded tumor tissue using Affymetrix 1...
May 15, 2018: Prostate
https://www.readbyqxmd.com/read/29758330/human-liver-infiltrating-%C3%AE-%C3%AE-t-cells-are-composed-of-clonally-expanded-circulating-and-tissue-resident-populations
#9
Stuart Hunter, Carrie Willcox, Martin Davey, Sofya Kasatskaya, Hannah Jeffery, Dmitriy Chudakov, Ye Oo, Benjamin Willcox
BACKGROUND & AIM: γδ T-cells comprise a substantial proportion of tissue-associated lymphocytes. However, our current understanding of human γδ T-cells is primarily based on peripheral blood subsets, while the immunobiology of tissue-associated subsets remains largely unclear. METHODS: To address this, we characterised the TCR diversity, immunophenotype and function of human liver infiltrating γδ T-cells, focussing on the predominant tissue-associated Vδ2neg γδ subset, which is implicated in liver immunopathology...
May 11, 2018: Journal of Hepatology
https://www.readbyqxmd.com/read/29756323/primary-mediastinal-histiocytic-sarcoma-presenting-as-pleural-effusion
#10
Jie-Yang Jhuang, Wei-Yu Chen, Shih-Sung Chuang
Histiocytic sarcoma (HS) is a rare malignant neoplasm showing morphological and immunophenotypic features of mature tissue histiocytes. As HS may mimic non-Hodgkin lymphoma (NHL) pathologically, before the era of immunohistochemistry, many previously reported cases were misdiagnosed NHL. Up to date, there are only a few reports delineating the cytological features in fine-needle aspiration or bronchoalveolar lavage, but not in the effusion fluid yet. Herein, we report the case of a 61-year-old male with a mediastinal tumor presenting with malignant pleural effusion...
May 13, 2018: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/29754509/-new-and-traditional-directions-in-the-biology-and-management-of-childhood-acute-lymphoblastic-leukemia
#11
Bálint Egyed, Gábor Kovács, Nóra Kutszegi, Andrea Rzepiel, Judit Csányiné Sági, Dániel János Erdélyi, Judit Müller, Ágnes Félné Semsei
Owing to clinical trials and improvement over the past few decades, the majority of children with acute lymphoblastic leukemia (ALL) survive by first-line chemotherapy and combat with the problems of returning to community. However, many patients may have severe acute or late therapeutic side effects, and the survival rate in some groups (e.g., patients with MLL rearrangements, hypodiploidy, IKZF1 mutation or early precursor T cell phenotype) is far behind the average. Innovative strategies in medical attendance provide better clinical outcomes for them: complete gene diagnostics, molecularly targeted anticancer treatment, immuno-oncology and immune cell therapy...
May 2018: Orvosi Hetilap
https://www.readbyqxmd.com/read/29753961/the-role-of-parp-inhibition-in-triple-negative-breast-cancer-unraveling-the-wide-spectrum-of-synthetic-lethality
#12
REVIEW
Marios Papadimitriou, Giannis Mountzios, Christos A Papadimitriou
Triple-negative breast cancer (TNBC) accounts for approximately 15-20% of all breast cancers and is characterized by a lack of immunohistochemical expression of estrogen receptors (ER), progesterone receptors (PR) and HER2. TNBC is associated with poor long-term outcomes compared with other breast cancer subtypes. Many of these tumors are also basal-like cancers which are characterized by an aggressive biological behavior with a distant recurrence peak observed early at 3 years following diagnosis. Furthermore, metastatic TNBC bears a dismal prognosis with an average survival of 12 months...
May 2, 2018: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/29753948/gender-related-differences-observed-among-immune-cells-in-synovial-fluid-in-knee-osteoarthritis
#13
E Kriegova, G Manukyan, Z Mikulkova, G Gabcova, M Kudelka, P Gajdos, J Gallo
OBJECTIVE: There is no existing comprehensive report on the cellular composition of synovial fluids (SFs) from knee osteoarthritis (OA). We therefore aimed to characterise the immune cell composition in SFs from knee OA and in subgroups according to gender. DESIGN: The immunophenotyping of monocyte/macrophage lineage cells, T and B cells, NK cells, neutrophils, dendritic and mast cells present in SFs from 53 patients (24 males/29 females) with knee OA was performed using 6-colour flow cytometry...
May 10, 2018: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/29752628/correlation-between-heat-shock-proteins-adiponectin-and-t-lymphocyte-cytokine-expression-in-type-2-diabetics
#14
Fadia F Mahmoud, David Haines, Ali A Dashti, Sherief El-Shazly, Fawzia Al-Najjar
Type 2 diabetes mellitus (T2DM) features insulin resistance, hyperglycemia, dyslipidemia, overproduction of inflammatory cytokines, and systemic oxidative stress. Here, heat shock proteins Hsp70 and Hsp 90, adiponectin, and heme oxygenase-1 (HO-1, Hsp32) are profiled in peripheral blood mononuclear cells (PBMC) and serum from 25 T2DM patients and 25 healthy control subjects. Cells cultured with phorbol 12-myristate 13-acetate/ionomycin were evaluated by three-color flow cytometry for immunophenotypic biomarkers...
May 11, 2018: Cell Stress & Chaperones
https://www.readbyqxmd.com/read/29752148/malignant-primary-diffuse-leptomeningeal-gliomatosis-with-histone-h3-3-k27m-mutation
#15
C Champeaux, A Drier, B Devaux, A Tauziède-Espariat
INTRODUCTION: Malignant primary diffuse leptomeningeal gliomatosis (MPDLG) are rare central nervous system neoplasms associated with a poor outcome. CASE REPORT: We report the case of a 40-year-old woman who presented with unusual worsening of bilateral sciatica, headaches, diplopia and a left proptosis. MRI of the head and spine showed multiple leptomeningeal lesions with no intra parenchymal involvement. The search for a primary tumor was negative. An open surgical biopsy of the prominent intradural lumbar tumor was performed within a week...
May 8, 2018: Neuro-Chirurgie
https://www.readbyqxmd.com/read/29752049/the-screening-and-electron-microscopy-observation-of-mammary-analogue-secretory-carcinoma-in-chinese
#16
Yi Zhong, Liu Liu, Bin Qi, Xiaoling Song, Linhan Shen, Hongwei Li
Mammary analogue secretory carcinoma of salivary gland (MASC) is a tumor with histopathologic and immunophenotypic features mimicking secretory carcinoma of the breast harboring the ETV6 split. The expression of mammaglobin, S-100, Ki-67, P63 and ETV6 split were detected in twelve cases of acinar cell carcinoma and fourteen cases of mammary analogue secretory carcinoma of salivary gland by immunohistochemistry and fluorescence in situ hybridization respectively. The expression of ETV6 gene split was detected in fourteen mammary analogue secretory carcinomas of salivary gland with positive expression of mammaglobin...
October 19, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29751882/hepatic-lymphoma-diagnosis
#17
REVIEW
Won-Tak Choi, Ryan M Gill
Systemic hematopoietic disorders may present on liver biopsy, and rare cases of primary hepatic lymphoma (PHL) may be encountered. Hepatopathologists must be familiar with the full spectrum of hematopoietic disorders involving the liver and be prepared to exclude benign mimics. PHL, which is confined to the liver without extrahepatic involvement, can present as solitary or multiple nodules, raising consideration for carcinoma on imaging, or may mimic benign inflammatory conditions, posing a diagnostic challenge...
June 2018: Surgical Pathology Clinics
https://www.readbyqxmd.com/read/29751821/improved-gmp-compliant-approach-to-manipulate-lipoaspirates-to-cryopreserve-stromal-vascular-fraction-and-to-expand-adipose-stem-cells-in-xeno-free-media
#18
Francesco Agostini, Francesca Maria Rossi, Donatella Aldinucci, Monica Battiston, Elisabetta Lombardi, Stefania Zanolin, Samuele Massarut, Pier Camillo Parodi, Alessandro Da Ponte, Giovanni Tessitori, Barbara Pivetta, Cristina Durante, Mario Mazzucato
BACKGROUND: The stromal vascular fraction (SVF) derived from adipose tissue contains adipose-derived stromal/stem cells (ASC) and can be used for regenerative applications. Thus, a validated protocol for SVF isolation, freezing, and thawing is required to manage product administration. To comply with Good Manufacturing Practice (GMP), fetal bovine serum (FBS), used to expand ASC in vitro, could be replaced by growth factors from platelet concentrates. METHODS: Throughout each protocol, GMP-compliant reagents and devices were used...
May 11, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29748447/morphologic-immunophenotypic-and-genetic-features-of-chronic-lymphocytic-leukemia-with-trisomy-12-a-comprehensive-review
#19
Francesco Autore, Paolo Strati, Luca Laurenti, Alessandra Ferrajoli
Chronic lymphocytic leukemia is an extremely heterogeneous disease and prognostic factors such as chromosomal abnormalities are important predictors of time to first treatment and survival. Trisomy 12 is the second most frequent aberration detected by fluorescence in situ hybridization at the time of diagnosis (10% to 25%), and it confers an intermediate prognostic risk, with a median time to first treatment of 33 months and a median overall survival of 114 months. Here, we review the unique morphologic, immunophenotypic, and genetic characteristics of patients with chronic lymphocytic leukemia and trisomy 12...
May 10, 2018: Haematologica
https://www.readbyqxmd.com/read/29747123/hiv-aspartyl-protease-inhibitors-modify-the-percentage-of-activated-leukocytes-as-well-as-serum-levels-of-il-17a-and-no-during-experimental-leishmaniasis
#20
Daniele Luísa Ribeiro Alvarenga, Amanda Helen Dos Santos Silva, Jacqueline Araújo Fiuza, Soraya Torres Gaze, Jaquelline Germano de Oliveira, Rodrigo Corrêa Oliveira, Carlos Eduardo Calzavara-Silva, Marcelo Antônio Pascoal-Xavier, Érica Alessandra Rocha Alves
HIV aspartyl protease inhibitors are able to modulate multiple defense mechanisms. However, their influence on the immune response against Leishmania has rarely been investigated. The aim of our study was to investigate whether in vivo treatment with HIV aspartyl protease inhibitors is able to modulate the immune response during Leishmania infection. Using Leishmania (L.) amazonensis-infected mice, we analyzed the disease evolution and parasite load, immunophenotypic profiles of splenic T and B lymphocytes, numbers of lymphoid aggregates in the spleen, percentages of circulating atypical lymphocytes and reactive monocytes, and serum levels of cytokines and nitric oxide (NO) after 30 days of oral treatment with lopinavir/ritonavir (LPV/RTV) or atazanavir (ATV)...
May 7, 2018: International Immunopharmacology
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