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https://www.readbyqxmd.com/read/28324751/the-rationale-of-indoleamine-2-3-dioxygenase-inhibition-for-cancer-therapy
#1
REVIEW
Lieve Brochez, Ines Chevolet, Vibeke Kruse
Indoleamine 2,3-dioxygenase (IDO, also referred to as IDO1) has been demonstrated to be a normal endogenous mechanism of acquired peripheral immune tolerance in vivo. In the field of oncology, IDO expression and/or activity has been observed in several cancer types and has usually been associated with negative prognostic factors and worse outcome measures. This manuscript reviews current available data on the role of IDO in cancer and the current results obtained with IDO inhibition, both in animal models and in phase 1 and 2 clinical trials in humans...
March 18, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28323576/tat-rasgap317-326-enhances-radiosensitivity-of-human-carcinoma-cell-lines-in-vitro-and-in-vivo-through-promotion-of-delayed-mitotic-cell-death
#2
Pelagia Tsoutsou, Alessandro Annibaldi, David Viertl, Jonathan Ollivier, Franz Buchegger, Marie-Catherine Vozenin, Jean Bourhis, Christian Widmann, Oscar Matzinger
The synthetic peptide TAT-RasGAP317-326 has been shown to potentiate the efficacy of anti-cancer drugs. In this study, we explored the action of TAT-RasGAP317-326 when combined with radiation by investigating its radiosensitizing activity in vitro and in vivo. To investigate the modulation of intrinsic radiosensitivity induced by TAT-RasGAP317-326, clonogenic assays were performed using four human cancer cell lines, HCT116 p53(+/+) (ATCC: CCL-247), HCT116 p53(-/-), PANC-1 (ATCC: CRL-1469) and HeLa (ATCC: CCL-2), as well as one nontumor cell line, HaCaT (CLS: 300493)...
March 21, 2017: Radiation Research
https://www.readbyqxmd.com/read/28320094/lncrna-meg3-had-anti-cancer-effects-to-suppress-pancreatic-cancer-activity
#3
Lei Gu, Jiaqiang Zhang, Minmin Shi, Qian Zhan, Baiyong Shen, Chenghong Peng
AIM: The aim of this study was to explain the mechanism of lncRNA MEG 3 in pancreatic cancer. METHODS: We were collecting 30 pancreatic cancer patients, taking the sample from these patients. We measured the PI3K protein expressions from 30 patients by IHC and WB methods and MEG 3 expression by RT-PCR, and analyzed the relationship between PI3K protein expression and pancreatic cancer patients' clinical pathology and the correlation between lncRNA MEG 3 and PI3K...
March 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28319409/investigation-of-anticarcinogenic-and-antioxidant-effects-of-methylimidazole
#4
M Norizadeh Tazehkand, O Hajipour, F Moridikia, A Moridikia, E Valipour, M B Yilmaz, M Topaktas
4-methylimidazole is widely used in pharmaceuticals, photographic and agricultural chemicals. The substance is extensively found in many human and animals foods. In this research, anticancer effect of the 4-MEI was studded using MTT test using MCF-7 cell line. Effect of the 4-MEI on apoptosis or necrosis was analyzed by DNA fragmentation assay using Swiss Albino rats as a model organism. Antioxidant effect of the substance was investigated by assaying protective effect of the substance on circular plasmid DNA against H2O2 as an oxidative agent...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/28318251/molecular-simulation-studies-on-the-binding-selectivity-of-type-i-inhibitors-in-the-complexes-with-ros1-versus-alk
#5
Yuanxin Tian, Yonghuan Yu, Yudong Shen, Hua Wan, Shan Chang, Tingting Zhang, Shanhe Wan, Jiajie Zhang
ROS1 and ALK are promising targets of anti-cancer drugs for non small cell lung cancer. Since they have 49% amide acid sequence homology in the kinases domain and 77% identity at the ATP binding area, some ALK inhibitors also showed some significant responses for ROS1 in the clinical trial, such as the type-I binding inhibitor crizotinib and PF-06463922. As a newly therapeutic target, selective ROS1 inhibitor is relative rarely. Moreover, the molecular basis for the selectivity of ROS1 versus ALK still remains unclear...
March 20, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28317492/monoclonal-antibodies-production-against-a-40kda-band-of-hydatid-cyst-fluid
#6
Hossein Yousofi Darani, Behroz Ataei, Seyedeh Maryam Sharafi, Hedayat Shirzad
BACKGROUND AND OBJECTIVES: Hydatid cyst is the larval stage of the tapeworm Echinococcus granulosus. Hydatid cyst fluid, cyst membrane and Protoscolices, contain a complex mixture of antigens that can induce immune responses in the host. Anti-cancer properties of Protoscolices and hydatid cyst fluid has been shown. In order to identify antigens of hydatid cyst fluid that have anti-cancer effect, in this study production of monoclonal antibodies against one of the hydatid cyst fluid band (40KDa) has been investigated...
March 17, 2017: Recent Patents on Biotechnology
https://www.readbyqxmd.com/read/28317223/cancer-with-low-cathepsin-d-levels-is-susceptible-to-v-atpase-inhibition
#7
Satoshi Kitazawa, Satoru Nishizawa, Hideyuki Nakagawa, Masaaki Funata, Kazuho Nishimura, Tomoyoshi Soga, Takahito Hara
Vacuolar (H(+) )-ATPases (V-ATPases) have important roles in the supply of nutrients to tumors by mediating autophagy and the endocytic uptake of extracellular fluids. Accordingly, V-ATPases are attractive therapeutic targets for cancer. However, the clinical use of V-ATPase inhibitors as anti-cancer drugs has not been realized, possibly owing to their high toxicity in humans. V-ATPase inhibition may be an appropriate strategy in highly susceptible cancers. In this study, we explored markers of V-ATPase inhibitor sensitivity...
March 19, 2017: Cancer Science
https://www.readbyqxmd.com/read/28315871/effects-of-glycyrrhizin-in-a-mouse-model-of-lung-adenocarcinoma
#8
Qing-Ping Deng, Mao-Jie Wang, Xing Zeng, George Gong Chen, Run-Yue Huang
BACKGROUND: Currently, there is a global attempt to identify potential anti-cancer agents with low toxicity. Previous studies have found that glycyrrhizin exerts anti-cancer action with low toxicity through suppressing thromboxane A2 (TxA2) in lung cancer cell lines. However, these effects have not yet been determined in animal models of lung cancer. METHODS: Human lung adenocarcinoma xenografts were established in nude mice by the introduction of A549 cells with stable transfection of the TxA2 receptor (TPα)...
March 16, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28315822/protective-effect-of-zerumbone-reduces-lipopolysaccharide-induced-acute-lung-injury-via-antioxidative-enzymes-and-nrf2-ho-1-pathway
#9
Wai-Shing Leung, Ming-Ling Yang, Shiuan-Shinn Lee, Chi-Wen Kuo, Yung-Chyuan Ho, Rosa Huang-Liu, Hui-Wen Lin, Yu-Hsiang Kuan
Acute lung injury (ALI) is a serious disease with high morbidity and mortality rate. Although there are effective strategies for treatment of ALI; a widely accepted specific pharmacotherapy has not yet established. Zerumbone, the major active phytochemical compound from Zingiber zerumbet Smith, exhibits various beneficial biological and pharmacological activities, such as antioxidation, anti-inflammation, immunomodulation, and anti-cancer. We aimed to study the potential protective effects and mechanisms of zerumbone in mouse model of lipopolysaccharide (LPS)-induced ALI...
March 15, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28315687/-10-gingerol-a-major-phenolic-constituent-of-ginger-root-induces-cell-cycle-arrest-and-apoptosis-in-triple-negative-breast-cancer-cells
#10
Megan M Bernard, Jason R McConnery, David W Hoskin
The ginger rhizome is rich in bioactive compounds, including [6]-gingerol, [8]-gingerol, and [10]-gingerol; however, to date, most research on the anti-cancer activities of gingerols have focused on [6]-gingerol. In this study, we compared [10]-gingerol with [8]-gingerol and [6]-gingerol in terms of their ability to inhibit the growth of human and mouse mammary carcinoma cells. A colorimetric assay based on the enzymatic reduction of 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide revealed that [10]-gingerol was more potent than [6]-gingerol and at least as potent as [8]-gingerol for the inhibition of triple-negative human (MDA-MB-231, MDA-MB-468) and mouse (4T1, E0771) mammary carcinoma cell growth...
March 15, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/28314758/immune-checkpoint-dysfunction-in-medium-and-large-vessel-vasculitis
#11
Ryu Watanabe, Hui Zhang, Gerald Berry, Jorg J Goronzy, Cornelia M Weyand
Giant cell arteritis (GCA) is a granulomatous vasculitis of the aorta and its medium-sized branch vessels. CD4 T-cells, macrophages and dendritic cells build granulomatous infiltrates that injure the vessel wall and elicit a maladaptive response-to-injury. Pathologic consequences include fragmentation of elastic membranes, destruction of the medial layer, microvascular neoangiogenesis, massive outgrowth of myofibroblasts, and lumen-occlusive intimal hyperplasia. Antigens have been suspected to drive the local activation of vasculitogenic CD4 T-cells, but recent data suggest a more generalized defect in the threshold setting of such T-cells, rendering them hyperreactive...
March 17, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28314481/benzophenones-and-xanthone-derivatives-from-garcinia-schomburgkiana-induced-p-glycoprotein-overexpression-in-human-colorectal-caco-2-cells-via-oxidative-stress-mediated-mechanisms
#12
Cherdsak Boonyong, Chutichot Pattamadilok, Rutt Suttisri, Suree Jianmongkol
BACKGROUND: Up-regulation of P-gp is an adaptive survival mechanism of cancer cells from chemotherapy. Three new phytochemicals including two benzophenones, guttiferone K (GK) and oblongifolin C (OC), and a xanthone, isojacaruebin (ISO), are potential anti-cancer agents. However, the capability of these compounds to increase multidrug-resistance (MDR) through P-gp up-regulation in cancer cells has not been reported. PURPOSE: This study was to investigate the effects of GK, OC and ISO on P-gp up-regulation in colorectal adenocarcinoma cells (Caco-2 cells)...
April 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28314389/the-us-chinese-anti-cancer-association-and-the-asian-fund-for-cancer-research-recognize-young-chinese-cancer-researchers-with-the-2016-uscaca-afcr-scholar-awards
#13
EDITORIAL
Wei Zhang, Li Yan, Wei Zhang, Yunguang Tong, Shi-Yuan Cheng
No abstract text is available yet for this article.
March 17, 2017: Chinese Journal of Cancer
https://www.readbyqxmd.com/read/28304343/understanding-the-effectiveness-of-natural-compound-mixtures-in-cancer-through-their-molecular-mode-of-action
#14
REVIEW
Thazin Nwe Aung, Zhipeng Qu, R Daniel Kortschak, David L Adelson
Many approaches to cancer management are often ineffective due to adverse reactions, drug resistance, or inadequate target specificity of single anti-cancer agents. In contrast, a combinatorial approach with the application of two or more anti-cancer agents at their respective effective dosages can achieve a synergistic effect that boosts cytotoxicity to cancer cells. In cancer, aberrant apoptotic pathways allow cells that should be killed to survive with genetic abnormalities, leading to cancer progression...
March 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28303530/a-randomized-open-label-multicenter-phase-ii-study-evaluating-the-efficacy-and-safety-of-bth1677-1-3-1-6-beta-glucan-imprime-pgg-in-combination-with-cetuximab-and-chemotherapy-in-patients-with-advanced-non-small-cell-lung-cancer
#15
M Thomas, P Sadjadian, J Kollmeier, J Lowe, P Mattson, J R Trout, M Gargano, M L Patchen, R Walsh, M Beliveau, J F Marier, N Bose, K Gorden, F Schneller
Introduction BTH1677, a 1,3-1,6 beta-glucan immunomodulator, stimulates a coordinated anti-cancer immune response in combination with anti-tumor antibody therapies. This phase II study explored the efficacy, pharmacokinetics (PK), and safety of BTH1677 combined with cetuximab/carboplatin/paclitaxel in untreated stage IIIB/IV non-small cell lung cancer (NSCLC) patients. Methods Patients were randomized 2:1 to the BTH1677 arm (N=60; BTH1677, 4 mg/kg, weekly; cetuximab, initial dose 400 mg/m(2) and subsequent doses 250 mg/m(2), weekly; carboplatin, 6 mg/mL/min AUC (area-under-the-curve) by Calvert formula, once each 3-week cycle [Q3W]); and paclitaxel, 200 mg/m(2), Q3W) or Control arm (N=30; cetuximab/carboplatin/paclitaxel as above)...
March 16, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/28303220/anemone-medicinal-plants-ethnopharmacology-phytochemistry-and-biology
#16
REVIEW
Da-Cheng Hao, Xiaojie Gu, Peigen Xiao
The Ranunculaceae genus Anemone (order Ranunculales), comprising more than 150 species, mostly herbs, has long been used in folk medicine and worldwide ethnomedicine. Various medicinal compounds have been found in Anemone plants, especially triterpenoid saponins, some of which have shown anti-cancer activities. Some Anemone compounds and extracts display immunomodulatory, anti-inflammatory, antioxidant, and antimicrobial activities. More than 50 species have ethnopharmacological uses, which provide clues for modern drug discovery...
March 2017: Acta Pharmaceutica Sinica. B
https://www.readbyqxmd.com/read/28302961/getting-to-the-heart-of-the-matter-in-cancer-novel-approaches-to-targeting-cancer-stem-cells
#17
Hugh Colvin, Masaki Mori
Cancer is one of the leading causes of deaths worldwide. While cancers may initially show good response to chemotherapy or radiotherapy, it is not uncommon for them to recur at a later date. This phenomenon may be explained by the existence of a small population of cancer stem cells, which are inherently resistant to anti-cancer treatment as well as being capable of self-renewal. Therefore, while most of the tumour bulk consisting of cells that are not cancer stem cells respond to treatment, the cancer stem cells remain, leading to disease recurrence...
2017: Proceedings of the Japan Academy. Series B, Physical and Biological Sciences
https://www.readbyqxmd.com/read/28302904/pharmacological-inhibition-of-the-spliceosome-subunit-sf3b-triggers-ejc-independent-nmd
#18
Teresa Carvalho, Sandra Martins, José Rino, Sérgio Marinho, Maria Carmo-Fonseca
Spliceostatin A, meayamycin, and pladienolide B are small molecules that target the SF3b subunit of spliceosomal U2 snRNP. These compounds are attracting much attention as tools to manipulate splicing and potential anti-cancer drugs. We investigated the effects of these inhibitors on mRNA transport and stability in human cells. Upon splicing inhibition unspliced pre-mRNAs accumulated in the nucleus, particularly within enlarged nuclear speckles. Yet, a small fraction of the pre-mRNA molecules were exported to the cytoplasm...
March 16, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/28302215/-altered-treg-and-il-1a-expression-in-the-immune-microenvironment-%C3%A2-of-lung-squamous-cell-cancer-after-egfr-blockade
#19
Haiyang He, Luyu Qi, Yiling Hou
BACKGROUND: Targeting the mutations and amplifications in the epidermal growth factor receptor (EGFR) gene has curative effects on cancers of the lung, oral cavity, and gastrointestinal system. However, a systemic immune inflammation is an adverse effect of this therapeutic strategy. In this study, we aimed to identify the possible changes in the tumor microenvironment that contribute to the anti-cancer activity of EGFR inhibition. METHODS: Squamous-cell cancers were induced by the syngeneic transplantation of either EGFR-null or wild-type mouse primary keratinocytes that had been transduced with an oncogenic H-ras retrovirus...
March 20, 2017: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
https://www.readbyqxmd.com/read/28302042/natural-anti-cancer-agents-implications-in-gemcitabine-resistant-pancreatic-cancer-treatment
#20
Bishal Marasini, Ravi P Sahu
Pancreatic cancer is one of the most lethal malignancy accounting for the fourth leading cause of cancer-related deaths in the United States. Among several explored anti-cancer agents, Gemcitabine, a nucleoside analogue remained a front line chemotherapeutic agent for the treatment of pancreatic cancer. However, gemcitabine exerts a low response rate with limited progression free survival in cancer patients due to cellular resistance of pancreatic tumors to this therapy. Several chemotherapeutic agents have been explored in combination with gemcitabine against pancreatic cancer with overall mixed responses and survival rates...
March 15, 2017: Mini Reviews in Medicinal Chemistry
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