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https://www.readbyqxmd.com/read/28340379/knockdown-of-ska1-gene-inhibits-cell-proliferation-and-metastasis-in-human-adenoid-cystic-carcinoma
#1
Li-Juan Zhao, Hong-Li Yang, Ke-Yi Li, Yue-Hua Gao, Kai Dong, Zhong-Hao Liu, Le-Xin Wang, Bin Zhang
The spindle and kinetochore-associated complex subunit 1(SKA1) is a newly discovered gene, which has been associated with mitosis and tumorigenesis. However, its role insalivary adenoid cystic carcinoma (SACC) is still unknown, and the invasive and metastatic mechanism in SACC is still unclear. To explore the molecular mechanism of SKA1 in the process of malignant proliferation and metastasis in adenoid cystic cancer (ACC) cells, we employed lentivirus-mediated short hairpin RNA to knockdown SKA1 in SACC-83 cells...
March 21, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28340172/repositioning-disulfiram-as-a-radiosensitizer-against-atypical-teratoid-rhabdoid-tumor
#2
Young Eun Lee, Seung Ah Choi, Pil Ae Kwack, Hak Jae Kim, Il Han Kim, Kyu-Chang Wang, Ji Hoon Phi, Ji Yeoun Lee, Sangjoon Chong, Sung-Hye Park, Kyung Duk Park, Do Won Hwang, Kyeung Min Joo, Seung-Ki Kim
Background.: Atypical teratoid/rhabdoid tumor (AT/RT) is one of the most common malignant brain tumors in infants. Although cancer stem cells of AT/RT express aldehyde dehydrogenase (ALDH), effective chemotherapies against AT/RT have not been established. Here, we examined radiosensitizing effects of disulfiram (DSF), an irreversible inhibitor of ALDH against AT/RT for a novel therapeutic method. Methods.: Patient-derived primary cultured AT/RT cells (SNU.AT/RT-5 and SNU...
March 17, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28335578/exploring-the-antitumor-mechanism-of-high-dose-cytarabine-through-the-metabolic-perturbations-of-ribonucleotide-and-deoxyribonucleotide-in-human-promyelocytic-leukemia-hl-60-cells
#3
Zheng Li, Jian-Ru Guo, Qian-Qian Chen, Cai-Yun Wang, Wei-Jia Zhang, Mei-Cun Yao, Wei Zhang
Despite the apparent clinical benefits of high-dose cytarabine (Ara-C) over lower dose Ara-C in acute myeloid leukemia (AML) therapy, the mechanism behind high-dose Ara-C therapy remains uncertain. In this study, a LC-MS-based method was carried out to investigate the metabolic alteration of ribonucleotide and deoxyribonucleotide in human promyelocytic leukemia cells (HL-60) after treatment with Ara-C to reveal its antitumor mechanism. The metabolic results revealed that four nucleotides (ATP, ADP, CDP, and dCTP) could be used as potential biomarkers indicating the benefit of high-dose Ara-C over lower dose Ara-C treatment...
March 21, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28334112/human-mitochondrial-pyrroline-5-carboxylate-reductase-1-promotes-invasiveness-and-impacts-survival-in-breast-cancers
#4
Jiefeng Ding, Mei-Ling Kuo, Leila Su, Lijun Xue, Frank Luh, Hang Zhang, Jianghai Wang, Tiffany G Lin, Keqiang Zhang, Peiguo Chu, Shu Zheng, Xiyong Liu, Yun Yen
Human mitochondrial pyrroline-5-carboxylate reductase (PYCR) is a house keeping enzyme that catalyzes the reduction of ?1-pyrroline-5-carboxylate (P5C) to proline. This enzymatic cycle plays pivotal roles in amino acid metabolism, intracellular redox potential, and mitochondrial integrity. Here, we hypothesize that PYCR1 might be a novel prognostic biomarker and therapeutic target for breast cancer. In this study, breast cancer tissue samples were obtained from Zhejiang University (ZJU set). Immunohistochemistry analysis was performed to detect the protein level of PYCR1, and Kaplan-Meier and Cox proportional analyses were employed in this outcome study...
February 24, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/28333235/ovarian-hormones-and-obesity
#5
Brigitte Leeners, Nori Geary, Philippe N Tobler, Lori Asarian
BACKGROUND: Obesity is caused by an imbalance between energy intake, i.e. eating and energy expenditure (EE). Severe obesity is more prevalent in women than men worldwide, and obesity pathophysiology and the resultant obesity-related disease risks differ in women and men. The underlying mechanisms are largely unknown. Pre-clinical and clinical research indicate that ovarian hormones may play a major role. OBJECTIVE AND RATIONALE: We systematically reviewed the clinical and pre-clinical literature on the effects of ovarian hormones on the physiology of adipose tissue (AT) and the regulation of AT mass by energy intake and EE...
March 2, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/28333033/freeze-all-cycle-in-reproductive-medicine-current-perspectives
#6
Matheus Roque, Marcello Valle, Alessandra Kostolias, Marcos Sampaio, Selmo Geber
The freeze-all strategy has emerged as an alternative to fresh embryo transfer (ET) during in vitro fertilization (IVF) cycles. Although fresh ET is the norm during assisted reproductive therapies (ART), there are many concerns about the possible adverse effects of controlled ovarian stimulation (COS) over the endometrium. The supra-physiologic hormonal levels that occur during a conventional COS are associated with modifications in the peri-implantation endometrium, which may be related to a decrease in pregnancy rates and poorer obstetric and perinatal outcomes when comparing fresh to frozen-thawed embryo transfers...
February 1, 2017: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/28332584/akt-targeting-as-a-strategy-to-boost-chemotherapy-efficacy-in-non-small-cell-lung-cancer-through-metabolism-suppression
#7
Marion Le Grand, Raphael Berges, Eddy Pasquier, Marie-Pierre Montero, Laurence Borge, Alice Carrier, Sophie Vasseur, Veronique Bourgarel, Duje Buric, Nicolas André, Diane Braguer, Manon Carré
Metabolic reprogramming is a hallmark of cancer development, mediated by genetic and epigenetic alterations that may be pharmacologically targeted. Among oncogenes, the kinase Akt is commonly overexpressed in tumors and favors glycolysis, providing a rationale for using Akt inhibitors. Here, we addressed the question of whether and how inhibiting Akt activity could improve therapy of non-small cell lung cancer (NSCLC) that represents more than 80% of all lung cancer cases. First, we demonstrated that Akt inhibitors interacted synergistically with Microtubule-Targeting Agents (MTAs) and specifically in cancer cell lines, including those resistant to chemotherapy agents and anti-EGFR targeted therapies...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28332095/identification-of-t-cell-target-antigens-in-glioblastoma-stem-like-cells-using-an-integrated-proteomics-based-approach-in-patient-specimens
#8
Carmen Rapp, Rolf Warta, Slava Stamova, Ali Nowrouzi, Christoph Geisenberger, Zoltan Gal, Saskia Roesch, Steffen Dettling, Simone Juenger, Mariana Bucur, Christine Jungk, Philip DaoTrong, Rezvan Ahmadi, Felix Sahm, David Reuss, Valentina Fermi, Esther Herpel, Volker Eckstein, Niels Grabe, Christoph Schramm, Markus A Weigand, Juergen Debus, Andreas von Deimling, Andreas Unterberg, Amir Abdollahi, Philipp Beckhove, Christel Herold-Mende
Glioblastoma (GBM) is a highly aggressive brain tumor and still remains incurable. Among others, an immature subpopulation of self-renewing and therapy-resistant tumor cells-often referred to as glioblastoma stem-like cells (GSCs)-has been shown to contribute to disease recurrence. To target these cells personalized immunotherapy has gained a lot of interest, e.g. by reactivating pre-existing anti-tumor immune responses against GSC antigens. To identify T cell targets commonly presented by GSCs and their differentiated counterpart, we used a proteomics-based separation of GSC proteins in combination with a T cell activation assay...
March 22, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28331909/evaluating-the-effect-of-insulin-sensitizers-metformin-and-pioglitazone-alone-and-in-combination-on-women-with-polycystic-ovary-syndrome-an-rct
#9
Seyed Mojtaba Sohrevardi, Fahime Nosouhi, Saeed Hossein Khalilzade, Parichehr Kafaie, Mojgan Karimi-Zarchi, Iman Halvaei, Mehdi Mohsenzadeh
BACKGROUND: Insulin resistance and hyperinsulinemia may play a role in pathogenesis of PCOS. One of the common therapeutic methods is using insulin-sensitizing drugs such as metformin and thiazolidinediones. OBJECTIVE: The purpose was to determine the effect of metformin and pioglitazone on clinical, hormonal and metabolic parameters in women with PCOS. MATERIALS AND METHODS: Eighty four women randomly received one of the following for 3 months: metformin (n=28) (500 mg three times a day), pioglitazone (30 mg daily) (n=28) and combination of both metformin and pioglitazone (n=28) (30 mg/day pioglitazone plus 500 mg metformin three times a day)...
December 2016: International Journal of Reproductive Biomedicine (Yazd, Iran)
https://www.readbyqxmd.com/read/28331101/immunotherapy-of-nivolumab-with-dendritic-cell-vaccination-is-effective-against-intractable-recurrent-primary-central-nervous-system-lymphoma-a-case-report
#10
Motomasa Furuse, Naosuke Nonoguchi, Naoki Omura, Mitsuaki Shirahata, Koichi Iwasaki, Toshio Inui, Toshihiko Kuroiwa, Hiroko Kuwabara, Shin-Ichi Miyatake
We report effective treatment with nivolumab of a patient with recurrent primary central nervous system lymphoma (PCNSL) after multiple therapies. A 41-year-old woman with a right parietal PCNSL underwent treatment with high-dose methotrexate and radiotherapy. After recurrence in the left frontal lobe, the patient received several chemotherapies, including methotrexate and rituximab, and underwent surgery. The tumor was refractory to these treatments, and the patient then underwent intensity-modulated radiotherapy (IMRT)...
March 23, 2017: Neurologia Medico-chirurgica
https://www.readbyqxmd.com/read/28330462/prospective-phase-ii-trial-of-everolimus-in-pik3ca-amplification-mutation-and-or-pten-loss-patients-with-advanced-solid-tumors-refractory-to-standard-therapy
#11
Seung Tae Kim, Jeeyun Lee, Se Hoon Park, Joon Oh Park, Young Suk Park, Won Ki Kang, Ho Yeong Lim
BACKGROUND: We designed a single-arm, open-label phase II trial of everolimus in PIK3CA amplification/mutation and/or PTEN loss patients with advanced solid tumors refractory to standard therapy (#NCT02449538). METHODS: Everolimus was administered orally at a daily dose of 10 mg continuously (28-day cycles). Treatment was continued until progression of the disease or intolerable toxicity was observed. Based on Simon's two-stage optimal design, 10 patients were treated with everolimus during the first stage...
March 23, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28329745/interleukin-6-and-hepcidin-levels-during-hormone-deplete-and-hormone-replete-phases-of-an-oral-contraceptive-cycle-a-pilot-study
#12
Marc Sim, Brian Dawson, Grant Landers, Dorine W Swinkels, Erwin Wiegerinck, Bu B Yeap, Debbie Trinder, Peter Peeling
BACKGROUND: In the past, elevated estradiol levels were reported to downregulate the iron regulatory hormone hepcidin, thereby potentially improving iron metabolism. As estrogen plays a role in regulating the menstrual cycle and can influence the cytokine interleukin-6 (IL-6; a hepcidin up-regulator), this investigation examined the effects of estradiol supplementation achieved by the use of a monophasic oral contraceptive pill (OCP) on IL-6, hepcidin levels and iron status during the hormone-deplete versus hormone-replete phases within an oral contraceptive cycle (OCC)...
March 23, 2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/28329268/dynamics-of-cough-frequency-in-adults-undergoing-treatment-for-pulmonary-tuberculosis
#13
Alvaro Proaño, Marjory A Bravard, José W Lopez, Gwenyth O Lee, David Bui, Sumona Datta, Germán Comina, Mirko Zimic, Jorge Coronel, Luz Caviedes, José L Cabrera, Antonio Salas, Eduardo Ticona, Nancy M Vu, Daniela E Kirwan, Maria-Cristina I Loader, Jon S Friedland, David A Moore, Carlton A Evans, Brian H Tracey, Robert H Gilman
Background: Cough is the major determinant of tuberculosis transmission. Despite this, there is a paucity of information regarding characteristics of cough frequency throughout the day and in response to tuberculosis therapy. Here we evaluate the circadian cycle of cough; cough frequency risk factors; and the impact of appropriate treatment on cough and bacillary load. Methods: We prospectively evaluated HIV-negative adults (n=64) with a new diagnosis of culture-proven, drug-susceptible pul-monary tuberculosis immediately prior to treatment and repeatedly until treatment day 62...
January 25, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28328856/the-influence-of-different-growth-hormone-addition-protocols-to-poor-ovarian-responders-on-clinical-outcomes-in-controlled-ovary-stimulation-cycles-a-systematic-review-and-meta-analysis
#14
Xue-Li Li, Li Wang, Fang Lv, Xia-Man Huang, Li-Ping Wang, Yu Pan, Xiao-Mei Zhang
BACKGROUND: Growth hormone (GH) is used as an adjuvant therapy in in vitro fertilization and embryo transfer (IVF-ET) for poor ovarian responders, but findings for its effects on outcomes of IVF have been conflicting. The aim of the study was to compare IVF-ET outcomes among women with poor ovarian responders, and find which subgroup can benefit from the GH addition. METHODS: We searched the databases, using the terms "growth hormone," "GH," "IVF," "in vitro fertilization...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28326740/successful-pregnancy-after-intralipid-addition-to-sildenafil-and-enoxaparin-in-woman-with-history-of-recurrent-pregnancy-loss-rpl
#15
(no author information available yet)
OBJECTIVES: Does addition of Intralipid to sildenafil and enoxaparin immunotherapy improve pregnancy outcome? MATERIALS AND METHOD: Report of a striking case of a patient with history of 4 recurrent pregnancy losses (RPL) and IVF failures. RESULTS: Adding of Intralipid resulted in giving birth to a healthy male baby in the 3th IVF cycle. CONCLUSION: Combination therapy that includes Intralipid may generate successful IVF outcome, although this problem merits further study, especially regarding safety issues...
December 22, 2016: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/28325261/cdk4-6-inhibitors-in-her2-positive-breast-cancer
#16
REVIEW
Silvia Paola Corona, Andrea Ravelli, Daniele Cretella, Maria Rosa Cappelletti, Laura Zanotti, Martina Dester, Angela Gobbi, Pier Giorgio Petronini, Daniele Generali
Notwithstanding the continuous progress made in cancer treatment in the last 20 years, and the availability of new targeted therapies, metastatic Breast Cancer (BC) is still incurable. Targeting the cell cycle machinery has emerged as an attractive strategy to tackle cancer progression, showing very promising results in the preclinical and clinical settings. The first selective inhibitors of CDK4/6 received breakthrough status and FDA approval in combination with letrozole (February 2015) and fulvestrant (February 2016) as first-line therapy in ER-positive advanced and metastatic BC...
April 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28325093/differences-in-intracellular-mobile-zinc-levels-affect-susceptibility-to-plasma-activated-medium-induced-cytotoxicity
#17
Hirokazu Hara, Sayako Sueyoshi, Miko Taniguchi, Tetsuro Kamiya, Tetsuo Adachi
There is growing evidence that plasma-activated medium (PAM), which is prepared by non-thermal plasma (NTP) irradiation of cell-free medium, is a beneficial tool for cancer therapy. PAM has been reported to preferentially kill cancer cells; however, its mechanism is not fully understood. Since PAM contains reactive oxygen species (ROS) and reactive nitrogen species, the anti-cancer effects of PAM are thought to be attributed to oxidative stress induced by these reactive molecules. Oxidative stress has been shown to release zinc (Zn(2+)) from intracellular Zn(2+) stores and provoke Zn(2+)-dependent cell death...
March 21, 2017: Free Radical Research
https://www.readbyqxmd.com/read/28324846/novel-alk5-inhibitor-tp0427736-reduces-tgf-%C3%AE-%C3%A3-induced-growth-inhibition-in-human-outer-root-sheath-cells-and-elongates-anagen-phase-in-mouse-hair-follicles
#18
Takumi Naruse, Mari Aoki, Natsuko Fujimoto, Seiji Arase, Hajimu Oura, Yasuji Ueda, Akiko Ikeda
BACKGROUND: Androgenic alopecia (AGA) occurs as a result of the contraction of the anagen phase because of the action of androgens on hair follicles. TGF-β production from dermal papillae is enhanced by androgens, and growth inhibition of hair-follicle cells is induced by TGF-β, and the hair cycle progresses from the anagen phase to the catagen phase. We investigated both the in vitro and in vivo potency of the newly identified ALK5 inhibitor TP0427736 {6-[4-(4-methyl-1,3-thiazol-2-yl)-1H-imidazol-5-yl]-1,3-benzothiazole}...
January 25, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28324595/recent-advances-in-developing-antiviral-therapies-for-respiratory-syncytial-virus
#19
REVIEW
Brian C Shook, Kai Lin
Respiratory syncytial virus (RSV) infection presents a significant health challenge in small children, the elderly and immunocompromised patients. There is still a high unmet medical need among patients with RSV infection, and no specific antiviral therapy is available. The only approved agents are palivizumab, which has to be given prophylactically, mainly in high-risk infants, and ribavirin, which is rarely used due to toxicity concerns and questionable benefits. Efforts to develop new antiviral agents have been hampered by the perceived need for high safety hurdles in pediatric patient populations use and the lack of well-characterized druggable targets...
April 2017: Topics in Current Chemistry (Journal)
https://www.readbyqxmd.com/read/28324298/circadian-disruption-associated-with-alzheimer-s-disease
#20
REVIEW
Yumna Saeed, Sabra M Abbott
Alzheimer's disease (AD) is increasing in prevalence and has a significant impact on caregivers and the healthcare system. One of the many physiologic process affected by AD is the circadian system, with disruption reflected in abnormalities of the sleep-wake cycle. This interaction is bidirectional, with circadian and sleep disruption influencing disease progression. Understanding the bidirectional relationship between AD and circadian disruption may allow for earlier recognition of the potential to develop dementia as well as improved targeted approaches for therapy...
April 2017: Current Neurology and Neuroscience Reports
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