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https://www.readbyqxmd.com/read/29458013/ago2-rna-immunoprecipitation-reveals-distinct-mirna-targetomes-of-primary-burkitt-lymphoma-tumors-and-normal-b-cells
#1
Agnieszka Dzikiewicz-Krawczyk, Arjan Diepstra, Bea Rutgers, Gertrud Kortman, Debora de Jong, Jasper Koerts, Marian Bulthuis, Tineke van der Sluis, Annika Seitz, Lydia Visser, Klaas Kok, Joost Kluiver, Anke van den Berg
MicroRNAs (miRNAs) are small noncoding RNAs involved in the posttranscriptional regulation of gene expression. Deregulated miRNA levels have been linked to Burkitt lymphoma (BL) pathogenesis. To date, the number of known pathogenesis-related miRNA-target gene interactions is limited. Here, we determined for the first time the miRNA targetomes of primary BL tumors and normal B cells. AGO2-RNA immunoprecipitation (AGO2-RIP) of two frozen diagnostic BL tissue samples and three CD19+ B-cell samples isolated from routinely removed tonsils revealed distinct miRNA targetomes of BL and normal B cells...
February 16, 2018: American Journal of Pathology
https://www.readbyqxmd.com/read/29457525/interleukin-1%C3%AE-induces-apoptosis-in-annulus-fibrosus-cells-through-the-extracellular-signal-regulated-kinase-pathway
#2
Xing Yang, Lei Wang, Zhang-Qin Yuan, Ping-Hui Zhou, Geng-Lei Chu, Bin Li, Jun-Ying Sun
The loss of intervertebral disc (IVD) cells due to excessive apoptosis is a central factor in the process of IVD degeneration. However, whether interleukin-1β (IL-1β) induces apoptosis through the extracellular signal-regulated kinase (ERK) pathway in annulus fibrosus cells (AFCs) has not been investigated. In this study, we observed increases in expression of Bax, caspase-3, and caspase-9, and a decrease in expression of Bcl-2 in patients with degenerative IVDs. In vitro, we found that IL-1β induced apoptosis and ERK pathway activation in AFCs...
February 18, 2018: Connective Tissue Research
https://www.readbyqxmd.com/read/29457438/-ct-and-mri-manifestation-of-primary-spinal-large-b-cell-lymphoma
#3
Ping Tian, Kai Jiang, Zhi-Qiang Cai, Yong-Tao Wang, Sheng-de Deng
OBJECTIVE: To investigate CT and MRI characteristics of primary spinal large B cell lymphoma. METHODS: CT and MRI data of 23 patients with primary spinal large B cell lymphoma confirmed by histopathology were retrospectively analyzed from March 2011 to August 2015. Among them, including 14 males and 9 females aged from 28 to 70 years old with an average of 53.4 years old. The clinical manifestation mainly focus on pain around spinal and minority peripheral nerve symptom...
December 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29457294/cytology-of-cerebrospinal-fluid-involvement-in-systemic-anaplastic-large-cell-lymphoma
#4
P Dehuri, C Bhandary, D Gochhait, B H Srinivas, D Basu, N Siddaraju
No abstract text is available yet for this article.
February 19, 2018: Cytopathology: Official Journal of the British Society for Clinical Cytology
https://www.readbyqxmd.com/read/29456744/cardamonin-enhances-the-anti-proliferative-effect-of-cisplatin-on-ovarian-cancer
#5
Peiguang Niu, Daohua Shi, Shusheng Zhang, Yanting Zhu, Jintuo Zhou
The mammalian target of rapamycin (mTOR) is well-known as a promising therapeutic target in various cancer cells. mTOR activation decreases the sensitivity of ovarian cancer to cisplatin. Cardamonin inhibits the proliferation of various cancer cells by mTOR suppression. The present study examined whether cardamonin combined with cisplatin is efficacious for the anti-proliferation of ovarian cancer cells. The anti-proliferative effect was determined by MTT and cell cycle assays. Activation of the mTOR signal pathway and the expression of anti-apoptotic proteins were evaluated by western blot analysis...
March 2018: Oncology Letters
https://www.readbyqxmd.com/read/29456710/mechanism-of-apoptosis-induction-associated-with-erk1-2-upregulation-via-goniothalamin-in-melanoma-cells
#6
Suphakorn Tangchirakhaphan, Sukanda Innajak, Sirinun Nilwarangkoon, Nudjaree Tanjapatkul, Wilawan Mahabusrakum, Ramida Watanapokasin
The present study aimed to investigate the effect of goniothalamin on apoptosis induction in the A375 melanoma cell line. Melanoma is a type of skin cancer with increased prevalence and no potential standard treatment. Goniothalamin is a plant, bioactive styrly-lactone, which has various bioactivities including anti-microbial, anti-inflammatory and anti-cancer. Apoptosis induction by goniothalamin has been studied in numerous cancer cell lines, however not in the melanoma cell line A375. The results of the MTT assay demonstrated that goniothalamin induced anti-proliferation in a dose dependent manner...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29456707/resveratrol-induces-autophagic-apoptosis-via-the-lysosomal-cathepsin-d-pathway-in-human-drug-resistant-k562-adm-leukemia-cells
#7
Zhewen Zhang, Zhuan Liu, Jing Chen, Juan Yi, Juan Cheng, Wangqing Dun, Hulai Wei
The aim of the present study was to investigate the crosstalk between resveratrol (Res)-induced autophagy and apoptosis, and the molecular pathway by which autophagy leads to apoptotic death in drug-resistant K562/ADM leukemia cells. The viability of K562/ADM cells was determined using the MTT assay. The formation of autophagic vacuoles was detected using transmission electron microscopy and monodansylcadaverine (MDC) staining. Cell apoptosis was evaluated using flow cytometry. The expression of apoptosis- or autophagy-associated proteins was measured using western blotting...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29456694/correlation-of-expression-levels-of-caspase-3-and-bcl-2-in-alveolar-lavage-fluid-in-neonatal-respiratory-distress-syndrome-and-prognosis
#8
Yongmei Li, Lu Lin, Qingxi Wang
This study was designed to investigate the correlation between expression levels of cysteine aspartic protease-3 (caspase-3) and B-cell lymphoma gene-2 (Bcl-2) proteins in alveolar lavage fluid and the prognosis of infants with neonatal respiratory distress syndrome (RDS). A total of 150 infants with neonatal RDS undergoing alveolar lavages were divided into four groups: RDS1 (group A, n=42), RDS2 (group B, n=38), RDS3 (group C, n=38) and RDS4 (group D, n=32) according to their thoracic X-ray film grading. The oxygen uptake score, oxygenation saturation, mean airway pressure and expression levels of caspase-3 and Bcl-2 in alveolar lavage fluid of the infants in the four groups were measured and compared...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29456668/fpoa-induces-the-apoptosis-of-hepg2-cells
#9
Mingjie Song, Haiying Bao, Tolgor Bau
The triterpenoid 3-acetoxylanosta-8,24-dien-21-oic acid (FPOA) is isolated from the fruiting body of Fomitopsis pinicola . The present study reports that FPOA exerts cytotoxic activity and describes the molecular mechanism of FPOA-induced apoptosis on human HepG2 hepatoma cells. FPOA exhibited significant cytotoxic effects against HepG2, MCF-7 and HeLa cells. However, FPOA was particularly cytotoxic towards HepG2 cells, with a half maximal inhibitory concentration value of 42.10 µM, thus these cells were taken forward for further analysis...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29456531/first-occurrence-of-plasmablastic-lymphoma-in-adenosine-deaminase-deficient-severe-combined-immunodeficiency-disease-patient-and-review-of-the-literature
#10
Maddalena Migliavacca, Andrea Assanelli, Maurilio Ponzoni, Roberta Pajno, Federica Barzaghi, Fabio Giglio, Francesca Ferrua, Marta Frittoli, Immacolata Brigida, Francesca Dionisio, Roberto Nicoletti, Miriam Casiraghi, Maria Grazia Roncarolo, Claudio Doglioni, Jacopo Peccatori, Fabio Ciceri, Maria Pia Cicalese, Alessandro Aiuti
Adenosine deaminase-deficient severe combined immunodeficiency disease (ADA-SCID) is a primary immune deficiency characterized by mutations in the ADA gene resulting in accumulation of toxic compounds affecting multiple districts. Hematopoietic stem cell transplantation (HSCT) from a matched donor and hematopoietic stem cell gene therapy are the preferred options for definitive treatment. Enzyme replacement therapy (ERT) is used to manage the disease in the short term, while a decreased efficacy is reported in the medium-long term...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29456493/administration-of-ketamine-causes-autophagy-and-apoptosis-in-the-rat-fetal-hippocampus-and-in-pc12-cells
#11
Xinran Li, Yanan Li, Jinghua Zhao, Lina Li, Yuxin Wang, Yiming Zhang, Yue Li, Yu Chen, Wenhan Liu, Li Gao
Drug abuse during pregnancy is a serious problem. Like alcohol, anticonvulsants, sedatives, and anesthetics, such as ketamine, can pass through the placental barrier and affect the growing fetus. However, the mechanism by which ketamine causes damage to fetal rats is not well understood. Therefore, in this study, we anesthetized pregnant rats with ketamine and evaluated the Total Antioxidant Capacity (T-AOC), Reactive Oxygen Species (ROS), and Malondialdehyde (MDA). Moreover, we determined changes in the levels of Cleaved-Caspase-3 (C-Caspase-3), Beclin-1, B-cell lymphoma-2 (Bcl-2), Bcl-2 Associated X Protein (Bax), Autophagy-related gene 4 (Atg4), Atg5, p62 (SQSTM1), and marker of autophagy Light Chain 3 (LC3)...
2018: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/29456131/high-expression-of-cc-chemokine-receptor-5-ccr5-promotes-disease-progression-in-patients-with-b-cell-non-hodgkin-lymphomas
#12
Aleksandra Butrym, Ilona Kryczek, Dorota Dlubek, Emilia Jaskula, Andrzej Lange, Artur Jurczyszyn, Grzegorz Mazur
Chemokines are small proteins, that regulate cell migration in many physiological and pathologic processes in human body. They are also responsible for cancer progression. CC chemokine receptor 5 (CCR5) is responsible for cell recruitment in inflammation and may be involved in antitumor immune response controlling. Aberrant CCR5 can be found in different kind of cancers, not only hematological, but also solid tumors. Non-Hodgkin lymphomas consist of many lymphoma subtypes. They predominantly derive from B cells and can have very heterogenous clinical course...
January 10, 2018: Current Problems in Cancer
https://www.readbyqxmd.com/read/29455639/role-of-bruton-s-tyrosine-kinase-in-b-cells-and-malignancies
#13
REVIEW
Simar Pal Singh, Floris Dammeijer, Rudi W Hendriks
Bruton's tyrosine kinase (BTK) is a non-receptor kinase that plays a crucial role in oncogenic signaling that is critical for proliferation and survival of leukemic cells in many B cell malignancies. BTK was initially shown to be defective in the primary immunodeficiency X-linked agammaglobulinemia (XLA) and is essential both for B cell development and function of mature B cells. Shortly after its discovery, BTK was placed in the signal transduction pathway downstream of the B cell antigen receptor (BCR). More recently, small-molecule inhibitors of this kinase have shown excellent anti-tumor activity, first in animal models and subsequently in clinical studies...
February 19, 2018: Molecular Cancer
https://www.readbyqxmd.com/read/29455626/diagnosis-of-anaplastic-large-cell-lymphoma-in-a-dog-using-cd30-immunohistochemistry
#14
Rachel Pittaway, Ying Wu, Balazs Szladovits, Alejandro Suárez-Bonnet, Emma J Scurrell, Oliver A Garden, Gerry Polton, Simon L Priestnall
Anaplastic large-cell lymphoma or null-cell lymphoma is a clinical entity reported in people, classified according to the unique appearance of large pleomorphic cells that express CD30. Null-cell lymphoma has also been described in dogs when neither CD3 nor CD79α is expressed by the tumor. We describe a case of lymphoma in the dog in which neoplastic cells did not express routine B- or T-lymphocyte markers on flow cytometry or immunohistochemistry; however, cells immunohistochemically labeled for CD30. The dog in our case died 5 mo after initial presentation, confirming a poor prognosis...
February 1, 2018: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/29455312/combining-baseline-tmtv-and-gene-profiling-for-a-better-risk-stratification-in-diffuse-large-b-cell-lymphoma
#15
EDITORIAL
Nicolas Aide, Charline Lasnon, Gandhi Damaj
No abstract text is available yet for this article.
February 17, 2018: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29454632/a-case-of-epstein-barr-virus-negative-human-immunodeficiency-virus-related-primary-effusion-lymphoma
#16
Shinichiro Ota, Yuji Fujikura, Takayuki Yamamoto, Yohei Maki, Atsushi Kurokawa, Takuya Maeda, Soichiro Kanoh, Akihiko Kawana
Primary effusion lymphoma (PEL) is a rare subtype of large B-cell lymphoma associated with human herpesvirus-8. Most cases are co-infected with Epstein-Barr virus (EBV). The prognosis of PEL is extremely poor and no optimal treatment regimen has been established. We report a case of EBV-negative PEL in a 49-year-old human immunodeficiency virus-positive man, presenting with massive bilateral pleural effusion.
February 14, 2018: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/29454324/investigation-of-the-anti-cataractogenic-mechanisms-of-curcumin-through-in-vivo-and-in-vitro-studies
#17
Jing Cao, Tao Wang, Meng Wang
BACKGROUND: Cataract is the leading cause of blindness in elderly people worldwide, especially in developing countries. Studies to identify strategies that can prevent or retard cataract formation are urgently required. This study aimed to investigate the potential mechanism of the cytoprotective effects of curcumin in in vivo and in vitro experiments. METHODS: Male Wistar rats were randomly divided into three groups: the control group, the model group (administered 20 μmol/kg sodium selenite), and the curcumin group (pretreated with 75 mg/kg body weight curcumin 24 h prior to the administration of sodium selenite)...
February 17, 2018: BMC Ophthalmology
https://www.readbyqxmd.com/read/29454012/immunologic-effects-of-chronic-administration-of-tofacitinib-a-janus-kinase-inhibitor-in-cynomolgus-monkeys-and-rats-comparison-of-juvenile-and-adult-responses
#18
Mark Collinge, Douglas J Ball, Christopher J Bowman, Andrea L Nilson, Zaher A Radi, W Mark Vogel
Tofacitinib, an oral Janus kinase (JAK) inhibitor for treatment of rheumatoid arthritis, targets JAK1, JAK3, and to a lesser extent JAK2 and TYK2. JAK1/3 inhibition impairs gamma common chain cytokine receptor signaling, important in lymphocyte development, homeostasis and function. Adult and juvenile cynomolgus monkey and rat studies were conducted and the impact of tofacitinib on immune parameters (lymphoid tissues and lymphocyte subsets) and function (T-dependent antibody response (TDAR), mitogen-induced T cell proliferation) assessed...
February 14, 2018: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/29453628/safety-tolerability-and-preliminary-activity-of-imgn529-a-cd37-targeted-antibody-drug-conjugate-in-patients-with-relapsed-or-refractory-b-cell-non-hodgkin-lymphoma-a-dose-escalation-phase-i-study
#19
Anastasios Stathis, Ian W Flinn, Sumit Madan, Kami Maddocks, Arnold Freedman, Steven Weitman, Emanuele Zucca, Mihaela C Munteanu, M Lia Palomba
Background CD37 is expressed on B-cell lymphoid malignancies, thus making it an attractive candidate for targeted therapy in non-Hodgkin lymphoma (NHL). IMGN529 is an antibody-drug conjugate comprising a CD37-binding antibody linked to the maytansinoid DM1, a potent anti-mitotic agent. Methods This first-in-human, phase 1 trial recruited adult patients with relapsed or refractory B-cell NHL. The primary objective was to determine the maximum tolerated dose (MTD) and recommended phase 2 dose. Secondary objectives were to evaluate safety, pharmacokinetics, and preliminary clinical activity...
February 17, 2018: Investigational New Drugs
https://www.readbyqxmd.com/read/29453281/the-pi3k%C3%AE-selective-inhibitor-idelalisib-minimally-interferes-with-immune-effector-function-mediated-by-rituximab-or-obinutuzumab-and-significantly-augments-b-cell-depletion-in-vivo
#20
Adam Palazzo, Sylvia Herter, Laura Grosmaire, Randy Jones, Christian R Frey, Florian Limani, Marina Bacac, Pablo Umana, Robert J Oldham, Michael J E Marshall, Kerry L Cox, Anna H Turaj, Mark S Cragg, Christian Klein, Matthew J Carter, Stacey Tannheimer
Idelalisib is a highly selective oral inhibitor of PI3Kδ indicated for the treatment of patients with relapsed chronic lymphocytic leukemia in combination with rituximab. Despite additive clinical effects, previous studies have paradoxically demonstrated that targeted therapies potentially negatively affect anti-CD20 mAb effector mechanisms. To address these potential effects, we investigated the impact of PI3Kδ inhibition by idelalisib on the effector mechanisms of rituximab and obinutuzumab. At clinically relevant concentrations, idelalisib minimally influenced rituximab- and obinutuzumab-mediated Ab-dependent cellular cytotoxicity and phagocytosis on human lymphoma cell lines, while maintaining the superiority of obinutuzumab-mediated Ab-dependent cellular cytotoxicity...
February 16, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
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