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https://www.readbyqxmd.com/read/28340496/recent-developments-in-nanomedicine-for-melanoma-treatment
#1
REVIEW
Jian-Qin Tang, Xiao-Yang Hou, Chun-Sheng Yang, Ya-Xi Li, Yong Xin, Wen-Wen Guo, Zhi-Ping Wei, Yan-Qun Liu, Guan Jiang
Melanoma is a most aggressive skin cancer with limited therapeutic options and its incidence is increasing rapidly in recent years. The discovery and application of new targeted therapy agents have shown significant benefits. However, adverse side-effects and resistance to chemotherapy remain formidable challenges in the clinical treatment of malignant melanoma. Nanotherapeutics offers an important prospect of overcoming these drawbacks. The anti-tumoral applications of nanomedicine are varied, including those in chemotherapy, RNA interference, photothermal therapy, and photodynamic therapy...
March 24, 2017: International Journal of Cancer. Journal International du Cancer
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/28339780/adverse-kidney-effects-of-epidermal-growth-factor-receptor-inhibitors
#3
Hassan Izzedine, Mark A Perazella
The epidermal growth factor receptor (EGFR) is implicated in various malignancies. The past decade has seen the development and widespread use of EGFR inhibitors for the successful treatment of such cancers. Available EGFR inhibitors include small molecule tyrosine-kinase inhibitors and monoclonal antibodies. Class-related renal adverse events result in dual toxicity including tubular/electrolyte disorders and glomerulopathies. Tubular injury is common and mainly due to monoclonal antibodies while glomerulopathy is rare and related to various anti-EGFR agents...
February 23, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28339056/nobiletin-inhibits-invasion-via-inhibiting-akt-gsk3%C3%AE-%C3%AE-catenin-signaling-pathway-in-slug-expressing-glioma-cells
#4
Xiang Zhang, Kebin Zheng, Chunhui Li, Yonghui Zhao, Heyang Li, Xuguang Liu, Yinbo Long, Junchao Yao
Epithelial-mesenchymal transition (EMT) is a pivotal event in tumor progression during which cancer cells undergo dramatic changes acquiring highly invasive properties. In this study, we found that nobiletin, a polymethoxylated flavone, suppressed migration and invasion in both U87 and U251 glioma cells. Expression of epithelial markers (E-cadherin and occludin) was upregulated; mesenchymal markers (N-cadherin, fibronectin) and the transcriptional factor Slug were downregulated after nobiletin treatment. Transforming growth factor β (TGF-β) was applied to stimulate EMT and the results showed that nobiletin not only influenced basal level cell migration but also prevented TGF-β-triggered migration and EMT, with the AKT/GSK3β/β-catenin signaling pathway greatly involved...
March 23, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28338158/-diagnosis-and-treatment-of-duodenal-injury-and-fistula
#5
Kunmei Gong, Shikui Guo, Kunhua Wang
Duodenal injury is a serious abdominal organ injury. Duodenal fistula is one of the most serious complications in gastrointestinal surgery, which is concerned for its critical status, difficulty in treatment and high mortality. Thoracic and abdominal compound closed injury and a small part of open injury are common causes of duodenal injury. Iatrogenic or traumatic injury, malnutrition, cancer, tuberculosis, Crohn's disease etc. are common causes of duodenal fistula, however, there has been still lacking of ideal diagnosis and treatment by now...
March 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28337964/targeting-cd47-enhances-the-efficacy-of-anti-pd-1-and-ctla-4-in-esophageal-squamous-cell-cancer-preclinical-model
#6
Hua Tao, Pudong Qian, Feijiang Wang, Hongliang Yu, Yesong Guo
Esophageal squamous cell cancer is a highly aggressive cancer with dismal five-year survival rate. CD47 is a cell transmembrane protein that is involved in cell apoptosis, proliferation, adhesion, migration, and antigen presenting of the immune system. Via interacting with signal regulatory protein-alpha expressed in antigen presenting cells (APCs), CD47 acts as an antiphagocytic mechanism to inhibit APCs dependent antigen presenting. Overxpression of CD47 was found in various cancer types. However, its role in esophageal squamous cell cancer is not clear yet...
March 23, 2017: Oncology Research
https://www.readbyqxmd.com/read/28337955/examining-the-in-vitro-efficacy-of-the-iap-antagonist-birinapant-as-a-single-agent-or-in-combination-with-dacarbazine-to-induce-melanoma-cell-death
#7
Vesna Vetma, Jan Rožanc, Emilie M Charles, Christian T Hellwig, Leonidas G Alexopoulos, Markus Rehm
Antagonists of inhibitor of apoptosis proteins (IAPs), alone or in combination with genotoxic therapeutics, have been shown to efficiently induce cell death in various solid tumours. The IAP antagonist birinapant is currently being tested in phase II clinical trials. We herein aimed to investigate the in vitro anti-tumour efficacy of dacarbazine, both as a single agent and in combination with birinapant, in melanoma cell lines. Covering clinically relevant drug concentration ranges, we conducted a total of 5400 measurements in a panel of 12 human melanoma cell lines representing different stages of disease progression...
March 23, 2017: Oncology Research
https://www.readbyqxmd.com/read/28337821/mindfulness-based-stress-reduction-added-to-care-as-usual-for-lung-cancer-patients-and-or-their-partners-a-multi-centre-randomized-controlled-trial
#8
M P J Schellekens, D G M van den Hurk, J B Prins, A R T Donders, J Molema, R Dekhuijzen, M A van der Drift, A E M Speckens
BACKGROUND: Lung cancer patients report among the highest distress rates of all cancer patients. Partners report similar distress rates. The present study examined the effectiveness of additional Mindfulness-Based Stress Reduction (CAU + MBSR) versus solely care as usual (CAU) to reduce psychological distress in lung cancer patients and/or their partners. METHODS: We performed a multicentre, parallel-group, randomized controlled trial. MBSR is an 8-week group-based intervention, including mindfulness practice and teachings on stress...
March 23, 2017: Psycho-oncology
https://www.readbyqxmd.com/read/28337388/the-clinical-significance-of-anti-mitotic-spindle-apparatus-antibody-msa-and-anti-centromere-antibody-aca-detected-in-patients-with-small-cell-lung-cancer-sclc
#9
Liming Tan, Yuhong Zhang, Yongqing Jiang, Hua Li, Juanjuan Chen, Feng Ming, Waimei Wang, Jianlin Yu, Tingting Zeng, Yongjian Tian, Yang Wu
PURPOSE: The project is aimed to detect anti-mitotic spindle apparatus antibody (MSA) and anti-centromere antibody (ACA) and explore the clinical value for the diagnosis of small cell lung cancer (SCLC), providing clinical evidence for molecular studies of SCLC. METHODS: 93 SCLC patients, 208 patients with other cancers and 50 healthy controls were enrolled in this study. MSA antibodies were detected by enzyme linked immunosorbent assay (ELISA). MSA, ACA and anti nuclear antibodies (ANA) were examined by indirect immuno-fluorescence (IIF)...
2017: American Journal of Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28337376/curcumin-derivative-wz35-efficiently-suppresses-colon-cancer-progression-through-inducing-ros-production-and-er-stress-dependent-apoptosis
#10
Junru Zhang, Zhiguo Feng, Chunhua Wang, Huiping Zhou, Weidong Liu, Karvannan Kanchana, Xuanxuan Dai, Peng Zou, Junlian Gu, Lu Cai, Guang Liang
Colon cancer is characterized by its fast progression and poor prognosis, and novel agents of treating colon cancer are urgently needed. WZ35, a synthetic curcumin derivative, has been reported to exhibit promising antitumor activity. Here, we investigated the in vitro and in vivo activities of WZ35 and explored the underlying mechanisms in colon cancer cell lines. WZ35 treatment significantly decreased the cell viability associated with G2/M cell cycle arrest and apoptosis induction in colon cancer cell lines...
2017: American Journal of Cancer Research
https://www.readbyqxmd.com/read/28337333/efficient-semisynthesis-of-pseudoirroratin-a-from-flexicaulin-a-and-assessment-of-their-antitumor-activities
#11
Lei Guo, Siu Wai Tsang, Tong-Xin Zhang, Kang-Lun Liu, Yi-Fu Guan, Bo Wang, Han-Dong Sun, Hong-Jie Zhang, Man Shing Wong
Accumulating evidence indicates that natural ent-kaurane diterpenoids show great potential for medical treatment of different pathological conditions including cytotoxicity, antibacterial, and anti-inflammatory activity. Among a variety of diterpenoids tested, (-)-pseudoirroratin A displayed a promising antitumor property in vitro and in vivo. However, this diterpenoid could merely be isolated in a limited amount from a rare source of Isodon pseudoirrorata. To overcome such scanty source, we developed a novel, facile, and efficient semisynthetic strategy to prepare (-)-pseudoirroratin A from natural (-)-flexicaulin A, which can be expediently obtained from I...
March 9, 2017: ACS Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28337269/the-role-of-prrx1-in-the-apoptosis-of-a549-cells-induced-by-cisplatin
#12
Hongbin Zhu, Gengyun Sun, Jiahui Dong, Liming Fei
Paired related homeobox1 (PRRX1) was a newly identified Epithelial mesenchymal transition (EMT) inducer. It was found that the decreased expression of PRRX1 in breast cancer and liver cancer could enable tumor cells to obtain tumor stem cell characteristics in vitro studies. However, the role of PRRX1 in lung cancer was still unknown. The down-regulated PRRX1 gene in A549 cells was established by slow virus infection in this study. The apoptosis of A549 cells was observed after the treatment of different concentrations of cisplatin and the role of PRRX1 in the apoptosis of A549 cells was explored...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28337197/hypofractionated-irradiation-has-immune-stimulatory-potential-and-induces-a-timely-restricted-infiltration-of-immune-cells-in-colon-cancer-tumors
#13
Benjamin Frey, Michael Rückert, Julia Weber, Xaver Mayr, Anja Derer, Michael Lotter, Christoph Bert, Franz Rödel, Rainer Fietkau, Udo S Gaipl
In addition to locally controlling the tumor, hypofractionated radiotherapy (RT) particularly aims to activate immune cells in the RT-modified microenvironment. Therefore, we examined whether hypofractionated RT can activate dendritic cells (DCs), induce immune cell infiltration in tumors, and how the chronology of immune cell migration into tumors occurs to gain knowledge for future definition of radiation breaks and inclusion of immunotherapy. Colorectal cancer treatments offer only limited survival benefit, and immunobiological principles for additional therapies need to be explored with preclinical models...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28337142/icariside-ii-effectively-reduces-spatial-learning-and-memory-impairments-in-alzheimer-s-disease-model-mice-targeting-beta-amyloid-production
#14
Lingli Yan, Yuanyuan Deng, Jianmei Gao, Yuangui Liu, Fei Li, Jingshan Shi, Qihai Gong
Icariside II (ICS II) is a broad-spectrum anti-cancer natural compound extracted from Herba Epimedii Maxim. Recently, the role of ICS II has been investigated in central nervous system, especially have a neuroprotective effect in Alzheimer's disease (AD). In this study, we attempted to investigate the effects of ICS II, on cognitive deficits and beta-amyloid (Aβ) production in APPswe/PS1dE9 (APP/PS1) double transgenic mice. It was found that chronic ICS II administrated not only effectively ameliorated cognitive function deficits, but also inhibited neuronal degeneration and reduced the formation of plaque burden...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28337019/apigenin-induced-lysosomal-degradation-of-%C3%AE-catenin-in-wnt-%C3%AE-catenin-signaling
#15
Chung-Ming Lin, Hsin-Han Chen, Chun-An Lin, Hui-Chung Wu, Jim Jinn-Chyuan Sheu, Hui-Jye Chen
The bioflavonoid apigenin has been shown to possess cancer-preventive and anti-cancer activities. In a drug screening, we found that apigenin can inhibit Wnt/β-catenin signaling, a pathway that participates in pivotal biological functions, which dis-regulation results in various human diseases including cancers. However, the underlying mechanism of apigenin in this pathway and its link to anti-cancer activities remain largely unknown. Here we showed that apigenin reduced the amount of total, cytoplasmic, and nuclear β-catenin, leading to the suppression in the β-catenin/TCF-mediated transcriptional activity, the expression of Wnt target genes, and cell proliferation of Wnt-stimulated P19 cells and Wnt-driven colorectal cancer cells...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28337018/rheumatoid-arthritis-fibroblast-like-synoviocyte-suppression-mediated-by-pten-involves-survivin-gene-silencing
#16
Danna Chen, Dongdong Liu, Dan Liu, Min He, Anping Peng, Jiarui Xu, Li Lin, Fudong Luo, Lin Chen, Xianzhang Huang, Junhua Zhuang, Jianhua Xu
Survivin is a proto-oncogene biomarker known for its anti-apoptotic and cell cycle regulating properties induced by the activation of the phosphoinositide 3-kinase (PI3K)/Akt pathway. In the context of non-cancer pathology, such as rheumatoid arthritis (RA), survivin has emerged as a feature associated with severe joint damage and poor treatment response. Phosphatase and tensin homolog (PTEN) is a phosphatase antagonizing all classes of PI3K. The interplay between survivin oncogenic mechanisms and proliferation suppression networks in RA has remained largely elusive...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28336956/preclinical-development-of-a-humanized-neutralizing-antibody-targeting-hgf
#17
Hyori Kim, Sung Hee Hong, Jung Yong Kim, In-Chull Kim, Young-Whan Park, Song-Jae Lee, Seong-Won Song, Jung Ju Kim, Gunwoo Park, Tae Min Kim, Yun-Hee Kim, Jong Bae Park, Junho Chung, In-Hoo Kim
Hepatocyte growth factor (HGF) and its receptor, cMET, play critical roles in cell proliferation, angiogenesis and invasion in a wide variety of cancers. We therefore examined the anti-tumor activity of the humanized monoclonal anti-HGF antibody, YYB-101, in nude mice bearing human glioblastoma xenografts as a single agent or in combination with temozolomide. HGF neutralization, The extracellular signal-related kinases 1 and 2 (ERK1/2) phosphorylation, and HGF-induced scattering were assessed in HGF-expressing cell lines treated with YYB-101...
March 24, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28336374/developments-and-future-clinical-outlook-of-taxane-nanomedicines
#18
REVIEW
Benoit Louage, Olivier De Wever, Wim E Hennink, Bruno G De Geest
Taxanes are highly valuable drugs for cancer treatment. Low water-solubility however puts a major challenge in obtaining formulations that are stable and easy-to-use in clinical practice. Initially, solubilization and lowering toxicity of taxanes has been the main research focus. However, emerging passive and active targeting strategies, especially in the field of nanomedicine, have been capital incentives to further broaden therapeutic index by improving efficacy. This review provides an up-to-date clinical track record of taxane nanomedicines in view of the current state-of-the-art in anti-cancer drug delivery...
March 20, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28335888/second-and-third-generation-drugs-for-immuno-oncology-treatment-the-more-the-better
#19
REVIEW
Wolfram C M Dempke, Klaus Fenchel, Peter Uciechowski, Stephen P Dale
Recent success in cancer immunotherapy (anti-CTLA-4, anti-PD1/PD-L1) has confirmed the hypothesis that the immune system can control many cancers across various histologies, in some cases producing durable responses in a way not seen with many small-molecule drugs. However, only less than 25% of all patients do respond to immuno-oncology drugs and several resistance mechanisms have been identified (e.g. T-cell exhaustion, overexpression of caspase-8 and β-catenin, PD-1/PD-L1 gene amplification, MHC-I/II mutations)...
March 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28335614/therapeutic-targeting-of-protein-kinase-ck2-gene-expression-in-feline-oral-squamous-cell-carcinoma-a-naturally-occurring-large-animal-model-of-head-and-neck-cancer
#20
Claire Cannon, Janeen Trembley, Betsy Kren, Gretchen Unger, M Gerard O'Sullivan, Ingrid Cornax, Jaime Modiano, Khalil Ahmed
Protein kinase CK2 (CK2) is a highly promising target for cancer therapy and anti-CK2 gene expression therapy has shown effectiveness in rodent models of human head and neck cancer (HNC). To date, there has been no large animal model of cancer in which to further explore anti-CK2 therapies. Feline oral squamous cell carcinoma (FOSCC) has been proposed as a large animal model for human HNC and we have previously shown that CK2 is a rational target in FOSCC. We hypothesized that a novel tenfibgen coated tumor-specific nanocapsule carrying RNAi oligonucleotides targeting feline CK2α and CK2α' (TBG-RNAi-fCK2αα') would be safe in cats with FOSCC...
March 23, 2017: Human Gene Therapy. Clinical Development
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