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https://www.readbyqxmd.com/read/29928971/the-venom-of-spider-haplopelma-hainanum-suppresses-proliferation-and-induces-apoptosis-in-hepatic-cancer-cells-by-caspase-activation-in-vitro
#1
Weiguang Lian, Hongguang Lian, Qian Li, Hu An, Shufeng Liu
ETHNOPHARMACOLOGICAL RELEVANCE: Spiders and spider venoms have been used in traditional Chinese medicine to treat various ailments for more than 1,000 years. For instance, several large spiders have been utilized by the Li People, who mainly live in Hainan Island of China, in their own unique traditional Chinese medicine therapy. Recent studies have indicated that spider venoms may be an important source of bioactive compounds for anti-tumor treatments. However, the specific mechanisms underlying these activities are not yet completely understood...
June 18, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29928333/combined-treatment-with-acetazolamide-and-cisplatin-enhances-chemosensitivity-in-laryngeal-carcinoma-hep-2-cells
#2
Hong Gao, Hai Dong, Guijun Li, Hui Jin
The aim of the present study was to determine whether acetazolamide (Ace) treatment enhances the chemosensitivity of Hep-2 laryngeal cells to cisplatin (Cis). At the logarithmic growth phase, Hep-2 cells were treated with Ace, Cis or both, and cell viability was detected using an MTT assay. The degree of apoptosis was detected using flow cytometry. Expression levels of apoptosis-related proteins, including BCL2 apoptosis regulator (bcl-2), BCL2 associated X (bax) and caspase-3, and of proliferation-related proteins, including proliferating cell nuclear antigen (PCNA) and tumor protein p53 (P53), were detected using western blotting...
June 2018: Oncology Letters
https://www.readbyqxmd.com/read/29926548/bleomycin-inhibits-proliferation-via-schlafen-mediated-cell-cycle-arrest-in-mouse-alveolar-epithelial-cells
#3
Soojin Jang, Se Min Ryu, Jooyeon Lee, Hanbyeol Lee, Seok Ho Hong, Kwon Soo Ha, Won Sun Park, Eun Taek Han, Se Ran Yang
BACKGROUND: Idiopathic pulmonary fibrosis involves irreversible alveolar destruction. Although alveolar epithelial type II cells are key functional participants within the lung parenchyma, how epithelial cells are affected upon bleomycin (BLM) exposure remains unknown. In this study, we determined whether BLM could induce cell cycle arrest via regulation of Schlafen (SLFN) family genes, a group of cell cycle regulators known to mediate growth-inhibitory responses and apoptosis in alveolar epithelial type II cells...
June 19, 2018: Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/29923513/low-spontaneous-apoptosis-index-at-diagnosis-predicts-a-high-risk-phenotype-in-paediatric-acute-lymphoblastic-leukaemia
#4
Ankita Singh, Prateek Bhatia, Amita Trehan, Deepak Bansal, Ajit Singh, Alka Bhatia
Background & objectives: Significance of apoptosis as a prognostic marker is less well studied in paediatric acute lymphoblastic leukaemia (ALL) cases. Hence, a prospective study, involving 30 paediatric ALL cases, was done to assess the clinical relevance of in vivo apoptosis. Methods: Peripheral blood mononuclear cells from all patients were subjected to annexin V/propidium iodide staining to detect the degree of apoptosis [apoptotic index (AI)] at day 0 and day 35 post-induction chemotherapy...
March 2018: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/29923357/the-protective-mechanism-of-nigella-sativa-against-diethylnitrosamine-induced-hepatocellular-carcinoma-through-its-antioxidant-effect-and-egfr-erk1-2-signaling
#5
Y R Shahin, N M Elguindy, A Abdel Bary, M Balbaa
A wide variety of natural products have powerful chemopreventive effects due to their antioxidant, antimutagenic, and anti-inflammatory activities that enable them to arrest cell proliferation in several cancer models. In the present study, we shed light on the protective mechanism of Nigella sativa extract against diethylnitrosamine (DENA)-induced preneoplastic stage of hepatocellular carcinoma (HCC) in rats. We studied the extract effect on EGFR/ERK1/2 signaling pathway as one of the major signaling pathways controlling cell proliferation during hepatocarcinogenesis as well as the investigation of its antioxidant activity...
June 19, 2018: Environmental Toxicology
https://www.readbyqxmd.com/read/29923216/betulinic-acid-induces-apoptosis-and-inhibits-metastasis-of-human-renal-carcinoma-cells-in-vitro-and-in-vivo
#6
Chunming Yang, Yan Li, Liye Fu, Tao Jiang, Fandong Meng
Betulinic acid (BA), a natural product with a broad range of biological properties, is a lupane-type pentacyclic triterpene isolated from various plants. Evidence is accumulating that BA is cytotoxic against multiple types of human cancer cells; however, its effects on renal carcinoma cells remain obscure. This study aimed to evaluate the anticancer activity of BA in human renal cancer cells in vitro and in vivo. In the current study, we found that BA inhibited renal cancer cell proliferation in a time-dependent and dose-dependent manner in vitro...
June 20, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29922432/cyclooxygenase-inhibitors-combined-with-deuterium-enriched-water-augment-cytotoxicity-in-a549-lung-cancer-cell-line-via-activation-of-apoptosis-and-mapk-pathways
#7
Abdolreza Hassanzade, Ali Mandegary, Elham Sharif, Rokhsana Rasooli, Reza Mohammadnejad, Yaser Masoumi-Ardekani
Objectives: Combination chemotherapy is a rational strategy to increase patient response and tolerability and to decrease adverse effects and drug resistance. Recently, the use of non-steroidal anti-inflammatory drugs (NSAIDs) has been reported to be associated with reduction in occurrence of a variety of cancers including lung cancer. On the other hand, growing evidences suggest that deuterium-enriched water (DEW, D2O) and deuterium-depleted water (DDW) play a role both in treatment and prevention of cancers...
May 2018: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29921925/author-correction-disruption-of-the-beclin-1-bcl2-autophagy-regulatory-complex-promotes-longevity-in-mice
#8
Álvaro F Fernández, Salwa Sebti, Yongjie Wei, Zhongju Zou, Mingjun Shi, Kathryn L McMillan, Congcong He, Tabitha Ting, Yang Liu, Wei-Chung Chiang, Denise K Marciano, Gabriele G Schiattarella, Govind Bhagat, Orson W Moe, Ming Chang Hu, Beth Levine
In this Letter, the graphs in Fig. 2a and c were inadvertently the same owing to a copy and paste error from the original graphs in Prism. The Source Data files containing the raw data were correct. Fig. 2c has been corrected online.
June 19, 2018: Nature
https://www.readbyqxmd.com/read/29915190/mesenchymal-stem-cell-mediated-notch2-activation-overcomes-radiation-induced-injury-of-the-hematopoietic-system
#9
Areumnuri Kim, Sehwan Shim, Min-Jung Kim, Jae Kyung Myung, Sunhoo Park
Radiation exposure severely damages the hematopoietic system. Although several radio-protectors have been proposed to prevent radiation-induced damage, most agents have limited efficacy. In the present study, we investigated whether mesenchymal stem cells (MSCs) could contribute to the expansion of hematopoietic cells and mitigate radiation-induced hematopoietic injury in vitro and in vivo. We found that co-culture with MSCs promoted hematopoietic progenitor/stem cell (HPSCs) maintenance by providing a bone marrow-like microenvironment...
June 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29914415/map3k7-is-recurrently-deleted-in-pediatric-t-lymphoblastic-leukemia-and-affects-cell-proliferation-independently-of-nf-%C3%AE%C2%BAb
#10
David M Cordas Dos Santos, Juliane Eilers, Alfonso Sosa Vizcaino, Elena Orlova, Martin Zimmermann, Martin Stanulla, Martin Schrappe, Kathleen Börner, Dirk Grimm, Martina U Muckenthaler, Andreas E Kulozik, Joachim B Kunz
BACKGROUND: Deletions of 6q15-16.1 are recurrently found in pediatric T-cell acute lymphoblastic leukemia (T-ALL). This chromosomal region includes the mitogen-activated protein kinase kinase kinase 7 (MAP3K7) gene which has a crucial role in innate immune signaling and was observed to be functionally and prognostically relevant in different cancer entities. Therefore, we correlated the presence of MAP3K7 deletions with clinical parameters in a cohort of 327 pediatric T-ALL patients and investigated the function of MAP3K7 in the T-ALL cell lines CCRF-CEM, Jurkat and MOLT-4...
June 18, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29913410/incensole-acetate-prevents-beta-amyloid-induced-neurotoxicity-in-human-olfactory-bulb-neural-stem-cells
#11
Mohammed A El-Magd, Sara F Khalifa, Faisal Abdulrahman A Alzahrani, Abdelnaser A Badawy, Eman S El-Shetry, Lamess M Dawood, Mohammed M Alruwaili, Hedib A Alrawaili, Engi F Risha, Fathy M El-Taweel, Hany E Marei
β-Amyloid peptide (Aβ) is a potent neurotoxic protein associated with Alzheimer's disease (AD) which causes oxidative damage to neurons. Incensole acetate (IA) is a major constituent of Boswellia carterii resin, which has anti-inflammatory and protective properties against damage of a large verity of neural subtypes. However, this neuroprotective effect was not studied on human olfactory bulb neural stem cells (hOBNSCs). Herein, we evaluated this effect and studied the underlying mechanisms. Exposure to Aβ25-35 (5 and 10 μM for 24 h) inhibited proliferation (revealed by downregulation of Nestin and Sox2 gene expression), and induced differentiation (marked by increased expression of the immature neuronal marker Map2 and the astrocyte marker Gfap) of hOBNSCs...
June 15, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29912596/understanding-resistance-mechanisms-to-btk-and-bcl2-inhibitors-in-mantle-cell-lymphoma-implications-for-design-of-clinical-trials
#12
Rishu Agarwal, Mark A Dawson, Martin Dreyling, Constantine S Tam
Novel targeted therapeutics has significantly improved the outlook of patients with relapsed/refractory mantle cell lymphoma (R/R MCL). Despite significant efficacy, one of the major limitations of these targeted agents is presence of primary or acquired resistance to these novel drugs. Patients who fail primary therapy especially with ibrutinib have poor outcomes and may respond poorly to subsequent therapies. Hence, it is important to understand resistance mechanisms a priori to identify patients who are unlikely to respond, and to explore alternative therapeutic strategies...
June 18, 2018: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/29909260/the-toxic-effect-of-aflatoxin-b1-on-early-porcine-embryonic-development
#13
Kyung-Tae Shin, Jing Guo, Ying-Jie Niu, Xiang-Shun Cui
Aflatoxin B1 (AFB1) is a type of mycotoxin produced by the fungi Aspergillus flavus and Aspergillus parasiticus. AFB1 is considered as the most toxic mycotoxin owing to its toxic effect on health. In the present study, the toxic effect of AFB1 on early porcine embryonic development and its possible mechanism were investigated. Blastocyst formation was impaired with treatment of 1 nM AFB1 compared with control, 0.01, 0.1 group (40.13 ± 2.10%, 28.21 ± 1.62%, 32.34 ± 2.07% vs 19.01 ± 1.06%)...
June 8, 2018: Theriogenology
https://www.readbyqxmd.com/read/29908833/direct-actions-of-adiponectin-on-changes-in-reproductive-metabolic-and-anti-oxidative-enzymes-status-in-the-testis-of-adult-mice
#14
Mayank Choubey, Ashutosh Ranjan, Puran S Bora, Fátima Baltazar, Amitabh Krishna
Obesity is a major health problem that is linked to decreased sperm count. It is hypothesized that an obesity-associated reduction in adiponectin secretion may be responsible for impairment of spermatogenesis. Therefore, the aim of the study was to evaluate the direct role of adiponectin in spermatogenesis and steroid synthesis in adult mice. This study showed that adiponectin receptors (AdipoR1 and AdipoR2) were localized in Leydig cells and seminiferous tubules in the testis of adult mice. The result of the in vitro study showed the direct action of adiponectin on spermatogenesis by stimulating cell proliferation (PCNA) and survival (Bcl2) and by suppressing cell apoptosis...
June 14, 2018: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/29906621/deoxynivalenol-decreased-the-growth-performance-and-impaired-intestinal-physical-barrier-in-juvenile-grass-carp-ctenopharyngodon-idella
#15
Chen Huang, Pei Wu, Wei-Dan Jiang, Yang Liu, Yun-Yun Zeng, Jun Jiang, Sheng-Yao Kuang, Ling Tang, Yong-An Zhang, Xiao-Qiu Zhou, Lin Feng
Deoxynivalenol (DON) is one of the most common mycotoxin contaminants of animal feed worldwide and brings significant threats to the animal production. However, studies concerning the effect of DON on fish intestine are scarce. This study explored the effects of DON on intestinal physical barrier in juvenile grass carp (Ctenopharyngodon idella). A total of 1440 juvenile grass carp (12.17 ± 0.01 g) were fed six diets containing graded levels of DON (27, 318, 636, 922, 1243 and 1515 μg/kg diet) for 60 days...
June 12, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29903764/inferior-survival-in-high-grade-b-cell-lymphoma-with-myc-and-bcl2-and-or-bcl6-rearrangements-is-not-associated-with-myc-ig-gene-rearrangements
#16
Ellen D McPhail, Matthew J Maurer, William R Macon, Andrew L Feldman, Paul J Kurtin, Rhett P Ketterling, Rakhee Vaidya, James R Cerhan, Stephen M Ansell, Luis F Porrata, Grzegorz S Nowakowski, Thomas E Witzig, Thomas M Habermann
High-grade B-cell lymphoma with MYC and BCL2 and/or BCL6 rearrangements (double-/triple-hit lymphoma) has an aggressive clinical course. We investigated prognostic value of transformation from low-grade lymphoma, cytologic features (high grade versus large cell), MYC gene rearrangement partners (immunoglobulin versus nonimmunoglobulin gene), and treatment. We evaluated 100 adults with double-/triple-hit lymphoma, reviewing cytologic features; cell of origin; and rearrangements of MYC, BCL2, and BCL6 using MYC, BCL2, and BCL6 break-apart and IGH/MYC, IGL/MYC, IGK/MYC, and IGH/BCL2 dual-fusion interphase fluorescence in situ hybridization probes...
June 14, 2018: Haematologica
https://www.readbyqxmd.com/read/29902576/lymphomas-with-pseudo-double-hit-bcl6-myc-translocations-due-to-t-3-8-q27-q24-are-associated-with-a-germinal-center-immunophenotype-extranodal-involvement-and-frequent-bcl2-translocations
#17
Steven M Johnson, Jayadev Manikkam Umakanthan, Ji Yuan, Yuri Fedoriw, R Gregory Bociek, Kathleen Kaiser-Rogers, Jennifer N Sanmann, Nathan D Montgomery
High-grade B-cell lymphomas with MYC, BCL2, and/or BCL6 rearrangements, "double hit" or "triple hit" lymphomas (DTHL), are aggressive neoplasms associated with a poor prognosis. A t(3;8)(q27;q24) rarely occurs in B-cell lymphomas that results in a unique "pseudo-double hit" BCL6-MYC fusion, indistinguishable by interphase fluorescence in situ hybridization (FISH) from more conventional DTHL with independent MYC and BCL6 translocations. Reports of t(3;8)(q27;q24) lymphomas are sparse, and to better characterize their pathologic, cytogenetic, and clinical features, 6 new cases from 2 institutions and 19 previously published cases were reviewed...
June 11, 2018: Human Pathology
https://www.readbyqxmd.com/read/29901224/pathway-focused-gene-expression-profiles-and-immunohistochemistry-detection-identify-contrasting-association-of-caspase-3-casp3-expression-with-prognosis-in-pediatric-classical-hodgkin-lymphoma
#18
Gabriela Vera-Lozada, Priscilla Segges, Claudio Gustavo Stefanoff, Mário Henrique M Barros, Gerald Niedobitek, Rocio Hassan
The search for clinically relevant molecular markers in classical Hodgkin lymphoma (cHL) is hampered by the histopathological complexity of the disease, resulting from the admixture of a small number of neoplastic Hodgkin and Reed-Sternberg (H-RS) cells with an abundant and heterogeneous microenvironment. In this study, we evaluated gene expression profiles of 11 selected genes previously proposed as a molecular score for adult cHL, aiming to validate its application in the pediatric setting. Assays were performed by RT-qPCR from formalin-fixed paraffin-embedded (FFPE) lymph nodes in 80 patients with cHL...
June 14, 2018: Hematological Oncology
https://www.readbyqxmd.com/read/29901120/identification-of-genes-and-signaling-pathways-associated-with-the-pathogenesis-of-juvenile-spondyloarthritis
#19
Zhe Wang, Yudi Han, Zhaoqing Zhang, Cunfeng Jia, Qiang Zhao, Wei Song, Tao Chen, Yifan Zhang, Xiuhui Wang
The aim of the present study was to identify key genes and signaling pathways associated with the pathogenesis of juvenile spondyloarthritis (JSA). The gene expression profile dataset GSE58667, including data from 15 human whole blood samples collected from 11 patients with JSA and four healthy controls, was analyzed to identify differentially expressed genes (DEGs) associated with disease characteristics. Additionally, Gene Ontology term and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analyses of the DEGs were performed...
June 6, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29901085/cdmp1-overexpression-mediates-inflammatory-cytokine%C3%A2-induced-apoptosis-via-inhibiting-the-wnt-%C3%AE-%C3%A2-catenin-pathway-in-rat-dorsal-root-ganglia-neurons
#20
Zhongwei Jia, Yingang Zhang, Yunxing Su, Xiaojian Wang, Jianping Yu, Qiling Yuan, Liang Liu
Cartilage‑derived morphogenetic protein‑1 (CDMP1) is a polypeptide growth factor with specific cartilage inducibility, which is predominantly expressed in the developmental long bone cartilage core and in the pre‑cartilage matrix in the embryonic stage. The aim of the present study was to investigate the roles and the mechanisms of CDMP1 overexpression on the apoptosis of rat dorsal root ganglia (DRG) neurons that were induced by inflammatory cytokines. Cell counting Kit‑8 assay, flow cytometry and TdT‑mediated dUTP nick‑end labeling assay were performed to examine cell viability and apoptosis...
June 5, 2018: International Journal of Molecular Medicine
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