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https://www.readbyqxmd.com/read/29149414/role-of-tctp-for-cellular-differentiation-and-cancer-therapy
#1
Ean-Jeong Seo, Nicolas Fischer, Thomas Efferth
The translationally controlled tumor protein (TCTP) is a highly conserved protein that is regulated due to a high number of extracellular stimuli. TCTP has an important role for cell cycle and normal development. On the other side, tumor reversion and malignant transformation have been associated with TCTP. TCTP has been found among the 12 genes that are differentially expressed during mouse oocyte maturation, and an overexpression of this gene was reported in a wide variety of different cancer types. Its antiapoptotic effect is indicated by the interaction with several proapoptotic proteins of the Bcl-2 family and the p53 tumor suppressor protein...
2017: Results and Problems in Cell Differentiation
https://www.readbyqxmd.com/read/29149105/lgr5-expression-is-regulated-by-egf-in-early-colorectal-adenomas-and-governs-egfr-inhibitor-sensitivity
#2
R G Morgan, E Mortensson, D N Legge, B Gupta, T J Collard, A Greenhough, A C Williams
BACKGROUND: LGR5 serves as a co-receptor for Wnt/β-catenin signalling and marks normal intestinal stem cells; however, its role in colorectal cancer (CRC) remains controversial. LGR5(+) cells are known to exist outside the stem cell niche during CRC progression, and the requirement for epidermal growth factor (EGF) signalling within early adenomas remains to be fully elucidated. METHODS: Epidermal growth factor and gefitinib treatments were performed in EGF-responsive LGR5(+) early adenoma RG/C2 cells...
November 16, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/29149101/how-does-p53-induce-apoptosis-and-how-does-this-relate-to-p53-mediated-tumour-suppression
#3
REVIEW
Brandon J Aubrey, Gemma L Kelly, Ana Janic, Marco J Herold, Andreas Strasser
The tumour suppressor gene TP53 is mutated in ~50% of human cancers. In addition to its function in tumour suppression, p53 also plays a major role in the response of malignant as well as nontransformed cells to many anticancer therapeutics, particularly those that cause DNA damage. P53 forms a homotetrameric transcription factor that is reported to directly regulate ~500 target genes, thereby controlling a broad range of cellular processes, including cell cycle arrest, cell senescence, DNA repair, metabolic adaptation and cell death...
November 17, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/29149077/rna-virus-evolution-via-a-quasispecies-based-model-reveals-a-drug-target-with-a-high-barrier-to-resistance
#4
Richard J Bingham, Eric C Dykeman, Reidun Twarock
The rapid occurrence of therapy-resistant mutant strains provides a challenge for anti-viral therapy. An ideal drug target would be a highly conserved molecular feature in the viral life cycle, such as the packaging signals in the genomes of RNA viruses that encode an instruction manual for their efficient assembly. The ubiquity of this assembly code in RNA viruses, including major human pathogens, suggests that it confers selective advantages. However, their impact on viral evolution cannot be assessed in current models of viral infection that lack molecular details of virus assembly...
November 17, 2017: Viruses
https://www.readbyqxmd.com/read/29147869/hematological-adverse-effects-in-breast-cancer-patients-treated-with-cyclin-dependent-kinase-4-and-6-inhibitors-a-systematic-review-and-meta-analysis
#5
REVIEW
Loay Kassem, Kyrillus S Shohdy, Shaimaa Lasheen, Omar Abdel-Rahman, Thomas Bachelot
BACKGROUND: The introduction of specific cyclin-dependent kinase 4 and 6 (CDK4/6) inhibitors significantly improved progression-free survival in hormone receptor-positive metastatic breast cancer. CDK 4/6 inhibitors induce cell cycle arrest via liberating the tumor suppressor retinoblastoma protein from CDK4/6 inhibitory effect. Preliminary studies suggested an increase in the hematological toxicities which might affect the quality of life in such palliative setting. METHODS: We searched PubMed, ASCO, ESMO and San Antonio meeting databases for randomized phase II/III trials in metastatic breast cancer receiving CDK4/6 inhibitors with safety data provided on the incidence of hematological adverse effects...
November 16, 2017: Breast Cancer: the Journal of the Japanese Breast Cancer Society
https://www.readbyqxmd.com/read/29147793/pharmacophoric-characteristics-of-dengue-virus-ns2b-ns3pro-inhibitors-a-systematic-review-of-the-most-promising-compounds
#6
REVIEW
Camyla Alves Leonel, William Gustavo Lima, Michelli Dos Santos, Ariane Coelho Ferraz, Alex Gutterres Taranto, José Carlos de Magalhães, Luciana Lara Dos Santos, Jaqueline Maria Siqueira Ferreira
Dengue virus (DENV) infection can lead to a wide range of clinical manifestations, including fatal hemorrhagic complications. There is a need to find effective pharmacotherapies to treat this disease due to the lack of specific immunotherapies and antiviral drugs. That said, the DENV NS2B/NS3pro protease complex is essential in both the viral multiplication cycle and in disease pathogenesis, and is considered a promising target for new antiviral therapies. Here, we performed a systematic review to evaluate the pharmacophoric characteristics of promising compounds against NS2B/NS3pro reported in the past 10 years...
November 16, 2017: Archives of Virology
https://www.readbyqxmd.com/read/29147444/visceral-crisis-means-short-survival-among-patients-with-luminal-a-metastatic-breast-cancer-a-retrospective-cohort-study
#7
Yassir Sbitti, Khaoula Slimani, Adil Debbagh, Anouar Mokhlis, Habiba Kadiri, Abdelilah Laraqui, Hassan Errihani, Mohamed Ichou
Background: Patients with visceral crisis from luminal metastatic breast cancer (mBC) are often treated with palliative chemotherapy. No studies have analyzed the aggressiveness of the care in visceral crisis from luminal mBC patients. The objective of this study was to assess practices in this setting in a university medical oncology department. Methods: This retrospective study included all patients who were managed for luminal mBC between January 2013 and April 2016...
August 2017: World Journal of Oncology
https://www.readbyqxmd.com/read/29146887/targeted-therapy-of-gastroenteropancreatic-neuroendocrine-tumours-preclinical-strategies-and-future-targets
#8
Elke Tatjana Aristizabal Prada, Christoph J Auernhammer
Molecular targeted therapy of advanced neuroendocrine tumours (NETs) of the gastroenteropancreatic (GEP) system currently encompasses approved therapy with the mTOR-inhibitor everolimus and the multi-tyrosinkinase inhibitor sunitinib. However clinical efficacy of these treatment strategies is limited by low objective response rates and limited progression free survival due to tumor resistance. Further novel strategies for molecular targeted therapy of NETs of the GEP-system are needed. This paper reviews preclinical research models and signaling pathways in NETs of the GEP-system...
November 16, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/29146383/not-just-antibiotics-is-cancer-chemotherapy-driving-antimicrobial-resistance
#9
REVIEW
Lito E Papanicolas, David L Gordon, Steve L Wesselingh, Geraint B Rogers
The global spread of antibiotic-resistant pathogens threatens to increase the mortality of cancer patients significantly. We propose that chemotherapy contributes to the emergence of antibiotic-resistant bacteria within the gut and, in combination with antibiotics, drives pathogen overgrowth and translocation into the bloodstream. In our model, these processes are mediated by the effects of chemotherapy on bacterial mutagenesis and horizontal gene transfer, the disruption of commensal gut microbiology, and alterations to host physiology...
November 13, 2017: Trends in Microbiology
https://www.readbyqxmd.com/read/29145973/tak-ing-aim-at-chemoresistance-the-emerging-role-of-map3k7-as-a-target-for-cancer-therapy
#10
Raffaela Santoro, Carmine Carbone, Geny Piro, Paul J Chiao, Davide Melisi
Cellular drug resistance remains the main obstacle to the clinical efficacy of cancer chemotherapy. Alterations in key pathways regulating cell cycle checkpoints, apoptosis and Epithelial to Mesenchymal Transition (EMT), such as the Mitogen-activated protein kinase (MAPK) pathway, appear to be closely associated to cancer chemoresistance. Transforming growth factor-β (TGF-β)- activated kinase 1 (TAK1, also known as MAP3K7) is a serine/threonine kinase in the mitogen-activated protein kinase (MAP3K) family...
November 2017: Drug Resistance Updates: Reviews and Commentaries in Antimicrobial and Anticancer Chemotherapy
https://www.readbyqxmd.com/read/29145543/association-of-ipilimumab-with-safety-and-antitumor-activity-in-women-with-metastatic-or-recurrent-human-papillomavirus-related-cervical-carcinoma
#11
Stephanie Lheureux, Marcus O Butler, Blaise Clarke, Mihaela C Cristea, Lainie P Martin, Katia Tonkin, Gini F Fleming, Anna V Tinker, Hal W Hirte, Daliah Tsoref, Helen Mackay, Neesha C Dhani, Prafull Ghatage, Johanne Weberpals, Stephen Welch, Nhu-An Pham, Vinicius Motta, Valentin Sotov, Lisa Wang, Katherine Karakasis, Smitha Udagani, Suzanne Kamel-Reid, Howard Z Streicher, Patricia Shaw, Amit M Oza
Importance: Based on evidence of human papillomavirus (HPV)-induced immune evasion, immunotherapy may be an attractive strategy in cervical cancer. Ipilimumab is a fully humanized monoclonal antibody that blocks cytotoxic T-lymphocyte antigen-4 (CTLA-4), which acts to downregulate the T-cell immune response. Objective: To assess the safety and antitumor activity of ipilimumab in recurrent cervical cancer. Design, Setting, and Participants: A multicenter trial was designed for patients with metastatic cervical cancer (squamous cell carcinoma or adenocarcinoma) with measurable disease and progression after at least 1 line of platinum chemotherapy...
November 16, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/29145260/reversible-severe-fatty-liver-induced-by-capecitabine-a-case-report
#12
Yiyan Jiang, Qiancheng He, Suxia Li, Chang Shi, Xiaolei Yang
RATIONALE: Capecitabine (CAP) is a chemotherapeutic agent used to treat breast and gastrointestinal cancers. The most common adverse reactions of CAP primarily included gastrointestinal and dermatological effects. Whereas, the CAP-induced fatty liver had never been reported. PATIENT CONCERNS: In this study, a-69-year old female presented a history of hypertension with regulated blood pressure, whereas diabetes mellitus, hyperlipidemia, and hepatitis were excluded...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145241/the-prognostic-value-of-the-serum-neuron-specific-enolase-and-lactate-dehydrogenase-in-small-cell-lung-cancer-patients-receiving-first-line-platinum-based-chemotherapy
#13
Xiaofan Liu, Weiming Zhang, Wen Yin, Yang Xiao, Changzhi Zhou, Yi Hu, Shuang Geng
The aim of this study was to investigate the associations of serum levels of neuron-specific enolase (NSE), pro-gastrin releasing peptide (ProGRP), and lactate dehydrogenase (LDH) with clinical response and survival in small cell lung cancer (SCLC) patients receiving first-line platinum-based chemotherapy.One hundred thirty-six patients with SCLC were recruited in this study. All the patients received first-line platinum-based chemotherapy. Clinical efficacy was assessed according to Response Evaluation Criteria in Solid Tumors v1...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29144993/evaluate-the-effects-of-antiepileptic-drugs-on-reproductive-endocrine-system-in-newly-diagnosed-female-epileptic-patients-receiving-either-valproate-or-lamotrigine-monotherapy-a-prospective-study
#14
Harpreet Singh Sidhu, R Srinivasa, Akshay Sadhotra
OBJECTIVE: To investigate the development of reproductive endocrine changes in Indian women with epilepsy initiating on either Valproate (VPA) or Lamotrigine (LTG) monotherapy. METHODS: Reproductive hormonal profiles, hirsutism, ovarian morphology by ultrasonography and menstrual cycle data in newly diagnosed women with epilepsy taking VPA (n=34) or LTG (n=32) monotherapy were compared. None of the women were receiving hormonal contraception. Patients gave details of seizure type and frequency, medical and drug history...
October 28, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/29144985/a-phase-1-2-study-of-rigosertib-in-patients-with-myelodysplastic-syndromes-mds-and-mds-progressed-to-acute-myeloid-leukemia
#15
Shyamala C Navada, Steven M Fruchtman, Rosalie Odchimar-Reissig, Erin P Demakos, Michael E Petrone, Patrick S Zbyszewski, James F Holland, Lewis R Silverman
This Phase 1/2, dose-escalating study of rigosertib enrolled 22 patients with higher-risk myelodysplastic syndromes (MDS) (n=9) and acute myeloid leukemia (AML; n=13) who had relapsed or were refractory to standard therapy and for whom no second-line therapies were approved. Patients received 3- to 7-day continuous intravenous infusions of rigosertib, an inhibitor of Ras-effector pathways that interacts with the Ras-binding domains, common to several signaling proteins including Raf and PI3 kinase. Rigosertib was administered at doses of 650-1700mg/m(2)/day in 14-day cycles...
November 11, 2017: Leukemia Research
https://www.readbyqxmd.com/read/29144585/therapeutic-potential-of-low-dose-il-2-in-immune-thrombocytopenia-an-analysis-of-3-cases
#16
Jiakui Zhang, Yanjie Ruan, Xuanxuan Xu, Huiping Wang, Qianshan Tao, Jun Lu, Linhuan Xia, Qiuye Zhang, Jeffrey Wang, Yiping Wang, Zhimin Zhai
Immune thrombocytopenia (ITP) is an acquired immune-mediated disorder with regulatory T cells (Tregs) reduction. Recent studies have shown that low-dose interleukin-2 can preferentially induce regulatory T cell expansion in vivo, and therefore offers a therapeutic strategy against immune thrombocytopenia. We have demonstrated in a previous study that Tregs and platelet counts significantly improve in an adult with ITP following low-dose IL-2 treatment. Here we report the efficacy of low-dose interleukin-2 in another three adults with immune thrombocytopenia who failed the first-line treatment...
November 16, 2017: Cytometry. Part B, Clinical Cytometry
https://www.readbyqxmd.com/read/29144216/the-truth-about-in-vitro-culture-of-cryptosporidium-species
#17
Panagiotis Karanis
Cryptosporidium research has focused on the development of infection control, and effective therapy that has thus far been hampered by the inability to culture Cryptosporidium in vitro. Other limitations include inadequate animal models, cumbersome screening procedures for chemotherapeutic approaches and a lack of tools for genetic manipulation. These limitations can, however, be eased by the improvement and focused development of in vitro cultivation. The ability to culture relevant Cryptosporidium isolates in vitro and to propagate the life cycle stages that are responsible for causing disease in an infected host is still a critical link...
November 16, 2017: Parasitology
https://www.readbyqxmd.com/read/29144172/disruptions-in-sleep-wake-cycles-in-community-dwelling-cancer-patients-receiving-palliative-care-and-their-correlates
#18
Marie Solange Bernatchez, Josée Savard, Hans Ivers
Significant disruptions in sleep-wake cycles have been found in advanced cancer patients in prior research. However, much remains to be known about specific sleep-wake cycle variables that are impaired in patients with a significantly altered performance status. More studies are also needed to explore the extent to which disrupted sleep-wake cycles are related to physical and psychological symptoms, time to death, maladaptive sleep behaviors, quality of life and 24-h light exposure. This study conducted in palliative cancer patients was aimed at characterizing patients' sleep-wake cycles using various circadian parameters (i...
November 16, 2017: Chronobiology International
https://www.readbyqxmd.com/read/29143969/the-molecular-basis-of-cytotoxicity-of-%C3%AE-spinasterol-from-ganoderma-resinaceum-induction-of-apoptosis-and-overexpression-of-p53-in-breast-and-ovarian-cancer-cell-lines
#19
Nada K Sedky, Zaynab El Gammal, Amir E Wahba, Eman Mosad, Zahraa Y Waly, Amira Ali El-Fallal, Reem K Arafa, Nagwa El-Badri
OBJECTIVES: Despite advances in therapy of breast and ovarian cancers, they still remain among the most imperative causes of cancer death in women. The first can be considered one of the most widespread diseases among females, while the latter is more lethal and needs prompt treatment. Thus, the research field can still benefit from discovery of new compounds that can be of potential use in management of these grave illnesses. We hereby aimed to assess the antitumor activity of the phytosterol α-spinasterol isolated from Ganoderma resinaceum mushroom on human breast cancer cell lines (MCF-7, MDA-MB-231), as well as, on human ovarian cancer cell line (SKOV-3)...
November 16, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29143796/angelica-sinensis-polysaccharides-ameliorate-stress-induced-premature-senescence-of-hematopoietic-cell-via-protecting-bone-marrow-stromal-cells-from-oxidative-injuries-caused-by-5-fluorouracil
#20
Hanxianzhi Xiao, Lirong Xiong, Xiaoying Song, Pengwei Jin, Linbo Chen, Xiongbin Chen, Hui Yao, Yaping Wang, Lu Wang
Myelosuppression is the most common complication of chemotherapy. Decline of self-renewal capacity and stress-induced premature senescence (SIPS) of hematopoietic stem cells (HSCs) induced by chemotherapeutic agents may be the cause of long-term myelosuppression after chemotherapy. Whether the mechanism of SIPS of hematopoietic cells relates to chemotherapeutic injury occurred in hematopoietic microenvironment (HM) is still not well elucidated. This study explored the protective effect of Angelica sinensis polysaccharide (ASP), an acetone extract polysaccharide found as the major effective ingredients of a traditional Chinese medicinal herb named Chinese Angelica (Dong Quai), on oxidative damage of homo sapiens bone marrow/stroma cell line (HS-5) caused by 5-fluorouracil (5-FU), and the effect of ASP relieving oxidative stress in HM on SIPS of hematopoietic cells...
October 28, 2017: International Journal of Molecular Sciences
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