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https://www.readbyqxmd.com/read/28441794/reciprocal-interactions-of-leukemic-cells-with-bone-marrow-stromal-cells-promote-enrichment-of-leukemic-stell-cell-compartments-in-response-to-curcumin-and-daunorubicin
#1
Saeed Mohammadi, Mohsen Nikbakht, Seyed Mehdi Sajjadi, Fariba Rad, Bahram Chahardouli, Javid Sabour Takanlu, Shahrbano Rostami, Kamran Alimoghaddam, Ardeshir Ghavamzadeh, Seyed H Ghaffari
A predominant challenge in developing curative leukemia therapy is interactions of leukemic cells with the bone marrow stromal microenvironment. We aimed to investigate the role of stromal cells, such as bone marrow mesenchymal stromal cells (BMSCs) and osteoblasts (OBs), in curcumin (CUR) and daunorubicin (DNR) induced apoptosis of acute myeloid leukemia (AML) cells. We used KG1 and U937 as leukemia cell line models and treated them with CUR and DNR. The cells were then co-cultured with BMSCs or a combination of BMSCs and OBs as feeders...
March 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28441375/primary-adrenal-angiosarcoma-a-rare-and-potentially-misdiagnosed-tumor
#2
Ariel Grajales-Cruz, Francis Baco-Viera, Ernesto Rive-Mora, Carlos Ramirez-Tanchez, David Tasso, Norma Arroyo-Portela, Elizabeth Calderon, Ilean Joan Padua-Octaviani, William Caceres-Perkins
A man aged 69 years presented with acute right flank pain secondary to a hemorrhagic large adrenal tumor. En bloc resection was performed to repair the inferior vena cava. Immunoperoxidase levels in the tumor were positive for factor VIII and CD31 and negative for S100, protein Melan-A, CD34, synaptophysin, chromogranin, desmin, muscle specific actin, ETFA (EMA), KRT20 (CK20), CDX2, TTF1, LNPEP (PLAP), inhibin, ?-fetoprotein, CD30, hepatocyte paraffin, and aberrant expression of cytokeratin 7 and pankeratin...
April 2017: Cancer Control: Journal of the Moffitt Cancer Center
https://www.readbyqxmd.com/read/28440611/the-meningioma-1-mn1-gene-is-an-independent-poor-prognostic-factor-in-adult-egyptian-acute-myeloid-leukemia-patients
#3
Roxan E Shafik, Naglaa M Hassan, Yomna M El Meligui, Hanan E Shafik
Aim: To determine the prognostic importance of meningioma 1 (MN1) gene expression levels in the context of other predictive markers for acute myeloid leukemia (AML) cases. Methods: MN1 expression was measured in 85 newly diagnosed adults younger than 60 years by real-time reverse-transcriptase polymerase chain reaction. Results: At diagnosis 67.4% of cases had elevated MN1 expression, this being associated with a worse prognosis, higher incidence of lymphadenopathy and CD34 transcript expression (p=0.02 and <0...
March 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28435991/polycythemia-capillary-rarefaction-and-focal-glomerulosclerosis-in-two-adolescents-born-extremely-low-birth-weight-and-premature
#4
Nariaki Asada, Takanori Tsukahara, Megumi Furuhata, Daisuke Matsuoka, Shunsuke Noda, Kuniaki Naganuma, Akinori Hashiguchi, Midori Awazu
BACKGROUND: Low birthweight infants have a reduced number of nephrons and are at high risk of chronic kidney disease. Preterm birth and/or intrauterine growth restriction (IUGR) may also affect peritubular capillary development, as has been shown in other organs. CASE-DIAGNOSIS/TREATMENT: We report two patients with a history of preterm birth and extremely low birthweight who showed polycythemia and renal capillary rarefaction. Patient 1 and 2, born at 25 weeks of gestation with a birthweight of 728 and 466 g, showed mild proteinuria at age 8 and 6 years, respectively...
April 24, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28434701/upregulated-interleukins-il-6-il-10-and-il-13-in-immunoglobulin-g4-related-aortic-aneurysm-patients
#5
Satomi Kasashima, Atsuhiro Kawashima, Yoh Zen, Satoru Ozaki, Fuminori Kasashima, Masamitsu Endo, Yasushi Matsumoto, Kengo Kawakami
OBJECTIVE: Immunoglobulin (Ig) G4-related aortic aneurysms (IgG4-AAs) are a special aortic aneurysm among IgG4-related diseases (IgG4-RDs), which are inflammatory and fibrous conditions characterized by tumorous swelling of affected organs and high serum IgG4 concentrations. Recently, IgG4-RD pathogenesis was shown to be associated with T-helper-2 (Th2) and regulatory T (Treg) dominant cytokine production, such as interleukin (IL)-4, IL-10, and IL-13. IL-6 is a key proinflammatory cytokine contributing to lymphocyte and plasmacyte maturation and to atherosclerosis and aneurysm development...
April 20, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28434170/establishment-and-characterization-of-novel-epithelial-like-cell-lines-derived-from-human-periodontal-ligament-tissue-in-vitro
#6
Kallapat Tansriratanawong, Hiroshi Ishikawa, Junko Toyomura, Soh Sato
In this study, novel human-derived epithelial-like cells (hEPLCs) lines were established from periodontal ligament (PDL) tissues, which were composed of a variety of cell types and exhibited complex cellular activities. To elucidate the putative features distinguishing these from epithelial rest of Malassez (ERM), we characterized hEPLCs based on cell lineage markers and tight junction protein expression. The aim of this study was, therefore, to establish and characterize hEPLCs lines from PDL tissues. The hEPLCs were isolated from PDL of third molar teeth...
April 22, 2017: Human Cell
https://www.readbyqxmd.com/read/28433555/systemic-application-of-sirolimus-prevents-neointima-formation-not-via-a-direct-anti-proliferative-effect-but-via-its-anti-inflammatory-properties
#7
Jan-Marcus Daniel, Jochen Dutzmann, Hannes Brunsch, Johann Bauersachs, Rüdiger Braun-Dullaeus, Daniel G Sedding
BACKGROUND: Systemic treatment with sirolimus, as used for immunosuppression in transplant patients, results in markedly low rates of in-stent restenosis. Since the underlying mechanisms remain obscure, we aimed to determine the molecular and cellular effects of systemic sirolimus treatment on vascular remodeling processes. METHODS AND RESULTS: Systemic sirolimus treatment significantly reduced smooth muscle cell (SMC) proliferation 14days after wire-induced injury and neointima formation 28days after injury in C57BL/6 mice, while simultaneously impairing re-endothelialization...
March 14, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28428057/natural-killer-cells-differentiated-in-vitro-from-cord-blood-cd34-cells-are-more-advantageous-for-use-as-an-immunotherapy-than-peripheral-blood-and-cord-blood-natural-killer-cells
#8
Anna Domogala, Michael Blundell, Adrian Thrasher, Mark W Lowdell, J Alejandro Madrigal, Aurore Saudemont
BACKGROUND AIMS: Natural killer (NK) cells have the potential to become a successful immunotherapy as they can target malignant cells without being direct effectors of graft-versus-host disease. Our group has previously shown that large numbers of functional NK cells can be differentiated in vitro from umbilical cord blood (CB) CD34(+) cells. To produce a clinically relevant and effective immunotherapy, we hypothesized that it is essential that the NK cells are able to proliferate and persist in vivo while maintaining an optimal activation status and killing capacity...
April 17, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28427227/high-dose-ascorbate-and-arsenic-trioxide-selectively-kill-acute-myeloid-leukemia-and-acute-promyelocytic-leukemia-blasts-in-vitro
#9
Nélida I Noguera, Elvira Pelosi, Daniela F Angelini, Maria Liliana Piredda, Gisella Guerrera, Eleonora Piras, Luca Battistini, Lauretta Massai, Anna Berardi, Gianfranco Catalano, Laura Cicconi, Germana Castelli, Agnese D'Angiò, Luca Pasquini, Grazia Graziani, Giuseppe Fioritoni, Maria Teresa Voso, Domenico Mastrangelo, Ugo Testa, Francesco Lo-Coco
The use of high-dose ascorbate (ASC) for the treatment of human cancer has been attempted several decades ago and has been recently revived by several in vitro and in vivo studies in solid tumors. We tested the cytotoxic effects of ASC, alone or in combination with arsenic trioxide (ATO) in acute myeloid leukemia (AML) and acute promyelocytic leukemia (APL). Leukemic cell lines and primary blasts from AML and APL patients were treated with graded concentrations of ASC, alone or in association with standard concentration (1 μM) of ATO...
March 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28426268/putative-biomarkers-of-response-to-treatment-in-breast-cancer-patients-a-pilot-assay
#10
María J Rico, Herman A Perroud, Cintia Herrera, Carlos M Alasino, Eduardo A Roggero, Stella M Pezzotto, Ana Lía Nocito, Viviana R Rozados, O Graciela Scharovsky
Identifying tumor biomarkers associated with clinical behavior in breast cancer patients may allow higher accuracy in the selection of treatment. Different types of cells were determined in the primary tumors of stage I, II, and III of breast cancer patients, who were assigned to one of the two groups: (1) disease-free or (2) relapsed/progressed, at 5 years after primary treatment. We studied 32 tumor samples. CD4(+) lymphocytes and CD44(+)CD24(-/low) cells (cancer stem cells) showed a significant association with clinical outcome at 5 years of primary treatment, while CD8(+), Foxp3(+), CD34(+), and myeloid-derived suppressor cells did not show any association...
April 20, 2017: Cancer Investigation
https://www.readbyqxmd.com/read/28425129/role-of-sialyl-6-sulfo-lewis-x-in-anti-tumor-immunity-against-oral-squamous-cell-carcinoma
#11
Hisato Yoshida, Hitomi Hoshino, Yoshiaki Imamura, Hitoshi Yoshimura, Kazuo Sano, Motohiro Kobayashi
BACKGROUND: Tumor-infiltrating lymphocytes (TILs) reportedly play a pivotal role in anti-tumor immunity against oral squamous cell carcinoma (OSCC); however, mechanisms governing TIL recruitment to OSCC tissues remain to be clarified. The present study was undertaken to assess a potential association between TILs and high endothelial venule (HEV)-like vessels that express sialyl 6-sulfo Lewis X (LeX). METHODS: OSCC tissue sections (n = 41) were subjected to immunohistochemistry for sialyl 6-sulfo LeX and CD34 to allow quantitation of HEV-like vessels...
April 20, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28423526/cd163-as-a-marker-of-m2-macrophage-contribute-to-predicte-aggressiveness-and-prognosis-of-kazakh-esophageal-squamous-cell-carcinoma
#12
Jian Ming Hu, Kai Liu, Ji Hong Liu, Xian Li Jiang, Xue Li Wang, Yun Zhao Chen, Shu Gang Li, Hong Zou, Li Juan Pang, Chun Xia Liu, Xiao Bin Cui, Lan Yang, Jin Zhao, Xi Hua Shen, Jin Fang Jiang, Wei Hua Liang, Xiang Lin Yuan, Feng Li
M2 macrophages was domesticated by tumor microenvironment to produce some angiogenic molecules and protease, facilitating angiogenesis and matrix breakdown, promoting tumor invasive and metastasis. However, The function of M2 macrophages to progression of eophageal carcinoma, especially Kazakh esophageal carcinoma is still dimness. This study aims to investigate M2 macrophages correlated with matrix metalloproteinase-9 (MMP9) and microvessel density, and the role in the progression of Kazakh esophageal squamous cell carcinoma...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423484/mir-494-3p-overexpression-promotes-megakaryocytopoiesis-in-primary-myelofibrosis-hematopoietic-stem-progenitor-cells-by-targeting-socs6
#13
Sebastiano Rontauroli, Ruggiero Norfo, Valentina Pennucci, Roberta Zini, Samantha Ruberti, Elisa Bianchi, Simona Salati, Zelia Prudente, Chiara Rossi, Vittorio Rosti, Paola Guglielmelli, Giovanni Barosi, Alessandro Vannucchi, Enrico Tagliafico, Rossella Manfredini
Primary myelofibrosis (PMF) is a chronic Philadelphia-negative myeloproliferative neoplasm characterized by hematopoietic stem cell-derived clonal myeloproliferation, involving especially the megakaryocyte lineage. To better characterize how the altered expression of microRNAs might contribute to PMF pathogenesis, we have previously performed the integrative analysis of gene and microRNA expression profiles of PMF hematopoietic stem/progenitor cells (HSPCs), which allowed us to identify miR-494-3p as the upregulated microRNA predicted to target the highest number of downregulated mRNAs...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423296/eltrombopag-added-to-standard-immunosuppression-for-aplastic-anemia
#14
Danielle M Townsley, Phillip Scheinberg, Thomas Winkler, Ronan Desmond, Bogdan Dumitriu, Olga Rios, Barbara Weinstein, Janet Valdez, Jennifer Lotter, Xingmin Feng, Marie Desierto, Harshraj Leuva, Margaret Bevans, Colin Wu, Andre Larochelle, Katherine R Calvo, Cynthia E Dunbar, Neal S Young
Background Acquired aplastic anemia results from immune-mediated destruction of bone marrow. Immunosuppressive therapies are effective, but reduced numbers of residual stem cells may limit their efficacy. In patients with aplastic anemia that was refractory to immunosuppression, eltrombopag, a synthetic thrombopoietin-receptor agonist, led to clinically significant increases in blood counts in almost half the patients. We combined standard immunosuppressive therapy with eltrombopag in previously untreated patients with severe aplastic anemia...
April 20, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28422936/phenotypic-characterization-of-adherent-cells-population-cd34-cd90-cd105-derived-from-wharton-s-jelly
#15
Irena Walecka, Paulina Gil-Kulik, Arkadiusz Krzyżanowski, Marcin Czop, Dariusz Galkowski, Jolanta Karwat, Piotr Chomik, Małgorzata Świstowska, Anna Kwaśniewska, Anna Bogucka-Kocka, Janusz Kocki
BACKGROUND Mesenchymal stromal cells, MSCs, show expression of specific antigens on their surface. The aim of the study is to assess the phenotype of stem cells like isolated from the umbilical cord with respect to the presence of surface antigens CD34, CD90, and CD105 and differences in the expression of surface antigens in cells isolated from freshly sampled material in comparison with the phenotype of cells from in vitro culture. MATERIAL AND METHODS Stem cells collected from the umbilical cord from healthy patients and then cultured in vitro...
April 19, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28421549/extragastrointestinal-stromal-tumor-of-the-inferior-vena-cava-a-case-report
#16
Kazuhide Ko, Kimiyoshi Shimanuki, Wataru Sakamoto, Keisuke Hara, Eiji Uchida
Here, we present a case report of a 60-year-old female with a 5-cm tumor in the inferior vena cava (IVC) that was positive for c-kit and CD34 expression. Thus, we considered this to be an extragastrointestinal c-kit-positive stromal tumor (EGIST). To the best of our knowledge, no primary EGISTs of the IVC have been described thus far. The potential occurrence of EGISTs outside the tubular gastrointestinal tract should be recognized in the differential diagnosis of tumors of the great vessels. Thus, we concluded that primary c-kit-positive stromal tumors of the IVC do indeed occur...
December 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28421369/immunophenotypic-profiles-for-distinguishing-orbital-mucosa-associated-lymphoid-tissue-lymphoma-from-benign-lymphoproliferative-tumors
#17
Shunichiro Ueda, Yoshihiko Usui, Takeshi Nagai, Daniel Diaz-Aguilar, Toshitaka Nagao, Hiroshi Goto
PURPOSE: To evaluate novel immunophenotypic profiles of patients with orbital lymphoproliferative tumors. METHODS: From 2006 to 2014, surgical biopsies from consecutive patients with newly diagnosed orbital mucosa-associated lymphoid tissue (MALT) lymphoma and IgG4-related ophthalmic disease (IgG4-ROD) were collected from Tokyo Medical University Hospital. A total of 44 tumors from 44 patients were analyzed, including 21 with orbital MALT lymphoma (11 men and 10 women, mean age 67...
April 18, 2017: Japanese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28420485/subcutaneous-dermatofibrosarcoma-protuberans-a-rare-subtype-with-predilection-for-the-head-a-retrospective-series-of-18-cases
#18
Beatriz Llombart, Carlos Serra-Guillén, Luis Rubio, Eduardo Nagore, Celia Requena, Victor Traves, Laura Calomarde, Bernardo Bancalari, José Antonio López-Guerrero, Carlos Guillen-Barona, Onofre Sanmartín
BACKGROUND: Dermatofibrosarcoma protuberans (DFSP) typically affects the dermis and subcutaneous tissue. The subcutaneous variant is rare. OBJECTIVE: We sought to characterize the subcutaneous DFSP (SC-DFSP) variant and compare it with cutaneous DFSP (C-DFSP). METHODS: This work was a retrospective study of DFSP treated in our institution. RESULTS: Of 124 cases of DFSP, 18 were SC-DFSP (14.5%). Except for the deep location, the pathologic and genetic features were indistinguishable from the C-DFSP variant...
April 15, 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28420432/elevated-gab2-induces-tumor-growth-and-angiogenesis-in-colorectal-cancer-through-upregulating-vegf-levels
#19
Chenbo Ding, Junmin Luo, Xiaobo Fan, Longmei Li, Shanshan Li, Kunming Wen, Jihong Feng, Guoqiu Wu
BACKGROUND: Grb2-associated binder 2 (Gab2) is a scaffolding protein that serves as a critical signaling amplifier downstream of tyrosine kinase receptors. Our previous study has shown that Gab2 induces epithelial-to-mesenchymal transition (EMT) and promotes metastasis in colorectal cancer (CRC). However, the role of Gab2 in CRC growth and angiogenesis remains unclear. METHODS: The expression of vascular endothelial growth factor (VEGF) in different colorectal tissues was detected by immunohistochemistry and qRT-PCR to evaluate its correlation with Gab2...
April 18, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28420427/isolation-and-characterization-of-equine-native-msc-populations
#20
Cristina L Esteves, Tara A Sheldrake, Simone P Mesquita, Juan J Pesántez, Timothy Menghini, Lucy Dawson, Bruno Péault, F Xavier Donadeu
BACKGROUND: In contrast to humans in which mesenchymal stem/stromal cell (MSC) therapies are still largely in the clinical trial phase, MSCs have been used therapeutically in horses for over 15 years, thus constituting a valuable preclinical model for humans. In human tissues, MSCs have been shown to originate from perivascular cells, namely pericytes and adventitial cells, which are identified by the presence of the cell surface markers CD146 and CD34, respectively. In contrast, the origin of MSCs in equine tissues has not been established, preventing the isolation and culture of defined cell populations in that species...
April 18, 2017: Stem Cell Research & Therapy
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