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https://www.readbyqxmd.com/read/28646810/synergistic-anti-breast-cancer-effects-of-combined-treatment-with-oleuropein-and-doxorubicin-in-vivo
#1
Maha H Elamin, Abdelsalam B Elmahi, Maha H Daghestani, Ebtesam M Al-Olayan, Reem A Al-Ajmi, Afrah F Alkhuriji, Sherifa S Hamed, Manal F Elkhadragy
Context • Breast cancer is a leading cause of cancer fatalities among women worldwide. Of the more than 80% of patients who receive adjuvant chemotherapy, approximately 40% relapse. The majority of these patients die of disseminated metastatic disease, which emphasizes the need for new therapeutic strategies Objective • The study intended to investigate the anticancer effects of oleuropein (OL) and doxorubicin (DOX) individually and in combination on breast tumor xenografts and also to evaluate the molecular pathways involved...
June 23, 2017: Alternative Therapies in Health and Medicine
https://www.readbyqxmd.com/read/28646535/targeting-stat3-by-ho3867-induces-apoptosis-in-ovarian-clear-cell-carcinoma
#2
Kristin Bixel, Uksha Saini, Hemant Kumar Bid, John Fowler, Maria Riley, Ross Wanner, Kalpana Deepa Priya Dorayappan, Sneha Rajendran, Ikuo Konishi, Noriomi Matsumura, David E Cohn, Karuppaiyah Selvendiran
Advanced ovarian clear cell carcinoma (OCCC) carries a very poor prognosis in large part secondary to the extremely high rate of resistance to standard platinum and taxane chemotherapy. STAT3 expression and activation has been shown to regulate tumor progression in various human cancers, though has not been well studied in OCCC. Preliminary work in our lab has demonstrated constitutive activation of STAT3 (pSTAT3Tyr705 or pSTAT3727) in OCCC cell lines as well as human OCCC tumor tissue samples. Significantly, pSTAT3 is expressed in the absence of other forms of activated STAT (pSTAT1, 2, 6)...
June 24, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28646318/primary-renal-paragangliomas-and-renal-neoplasia-associated-with-pheochromocytoma-paraganglioma-analysis-of-von-hippel-lindau-vhl-succinate-dehydrogenase-sdhx-and-transmembrane-protein-127-tmem127
#3
Sounak Gupta, Jun Zhang, Dragana Milosevic, John R Mills, Stefan K Grebe, Steven C Smith, Lori A Erickson
Alterations of von Hippel-Lindau (VHL), succinate dehydrogenase (SDHX), and TMEM127 have been associated with the development of pheochromocytomas (PCs) and paragangliomas (PGLs) and are also associated with the development of renal neoplasms. This study involved 2 primary renal PGL and 12 cases of PC/PGL with associated renal neoplasia with a mean follow up of 74 months. Germline VHL and SDHX mutation status was obtained from the medical record. Immunohistochemistry for SDHB and mutation analysis for TMEM127 was performed, in addition to analysis of The Cancer Genome Atlas datasets for SDHX and TMEM127 mutated renal cell carcinomas (RCCs)...
June 23, 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28644129/anti-cd47-antibodies-induce-phagocytosis-of-live-malignant-b-cells-by-macrophages-via-the-fc-domain-resulting-in-cell-death-by-phagoptosis
#4
Lucy E Métayer, Anna Vilalta, G A Amos Burke, Guy C Brown
When expressed on the surface of cells, CD47 inhibits phagocytosis of these cells by phagocytes. Most human cancers overexpress CD47, and antibodies to CD47 have shown a remarkable ability to clear a range of cancers in animal models. However, the mechanism by which these antibodies cause cancer cell death is unclear. We find that CD47 is expressed on the surface of three B-cell lines from human malignancies: 697 (pre-B-ALL lymphoblasts), Ramos and DG-75 (both mature B-cells, Burkitt's lymphoma), and anti-CD47 antibodies greatly increase the phagocytosis of all three cell line by macrophages...
June 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28642601/cancer-models-modeling-clear-cell-renal-cell-carcinoma
#5
Anna Dart
No abstract text is available yet for this article.
June 23, 2017: Nature Reviews. Cancer
https://www.readbyqxmd.com/read/28641694/-mir-133b-affect-the-proliferation-and-drug-sensitivity-in-a549-lung-cancer-stem-cells-by-targeting-pkm2
#6
Yonghua Mi, Miao He, Beizhong Liu
BACKGROUND: It has been proven that miR-133b could inhibit cancer cell growth, the expression level of miR-133b was significant reduction in lung cancer tissue and serum of patients, and increase the radiation sensitivity of squamous cell carcinoma by targeting PKM2, but the exist mechanisms is not clear. The aim of this study is to explore the effect of miR-133b on proliferation in A549 lung cancer stem cells and drug sensitivity in DDP, and to explore the relationship between miR-133b and PKM2 gene, as well as the effect of cancer stem cells...
June 20, 2017: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
https://www.readbyqxmd.com/read/28639902/mild-hyperthermia-enhances-sensitivity-of-gastric-cancer-cells-to-chemotherapy-through-reactive-oxygen-species-induced-autophagic-death
#7
Ming-Chen Ba, Hui Long, Shu-Zhong Cui, Yuan-Feng Gong, Zhao-Fei Yan, Shuai Wang, Yin-Bing Wu
Mild hyperthermia enhances anti-cancer effects of chemotherapy, but the precise biochemical mechanisms involved are not clear. This study was carried out to investigate whether mild hyperthermia sensitizes gastric cancer cells to chemotherapy through reactive oxygen species-induced autophagic death. In total, 20 BABL/c mice of MKN-45 human gastric cancer tumor model were divided into hyperthermia + chemotherapy group, hyperthermia group, chemotherapy group, N-acetyl-L-cysteine group, and mock group. Reactive oxygen species production and expression of autophagy-related genes Beclin1, LC3B, and mammalian target of rapamycin were determined...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28639257/large-scale-genome-wide-screening-of-circulating-micrornas-in-clear-cell-renal-cell-carcinoma-reveals-specific-signatures-in-late-stage-disease
#8
Estelle Chanudet, Magdalena B Wozniak, Liacine Bouaoun, Graham Byrnes, Anush Mukeriya, David Zaridze, Paul Brennan, David C Muller, Ghislaine Scelo
Circulating miRNAs have shown great promises as non-invasive diagnostic and predictive biomarkers in several solid tumors. While the miRNA profiles of renal tumors have been extensively explored, knowledge of their circulating counterparts is limited. Our study aimed to provide a large-scale genome-wide profiling of plasma circulating miRNA in clear-cell renal cell carcinoma (ccRCC). Plasma samples from 94 ccRCC cases and 100 controls were screened for 754 circulating micro-RNAs (miRNA) by TaqMan arrays. Analyses including known risk factors for renal cancer, namely age, sex, hypertension, obesity, diabetes, tobacco smoking and alcohol consumption, highlighted that circulating miRNA profiles were tightly correlated with the stage of the disease...
June 22, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28638478/-177-lu-labeled-phosphoramidate-based-psma-inhibitors-the-effect-of-an-albumin-binder-on-biodistribution-and-therapeutic-efficacy-in-prostate-tumor-bearing-mice
#9
Cindy J Choy, Xiaoxi Ling, Jonathan J Geruntho, Sophia K Beyer, Joseph D Latoche, Beatrice Langton-Webster, Carolyn J Anderson, Clifford E Berkman
Prostate-specific membrane antigen (PSMA) continues to be an active biomarker for small-molecule PSMA-targeted imaging and therapeutic agents for prostate cancer and various non-prostatic tumors that are characterized by PSMA expression on their neovasculature. One of the challenges for small-molecule PSMA inhibitors with respect to delivering therapeutic payloads is their rapid renal clearance. In order to overcome this pharmacokinetic challenge, we outfitted a (177)Lu-labeled phosphoramidate-based PSMA inhibitor (CTT1298) with an albumin-binding motif (CTT1403) and compared its in vivo performance with that of an analogous compound lacking the albumin-binding motif (CTT1401)...
2017: Theranostics
https://www.readbyqxmd.com/read/28638088/chemokine-receptor-cxcr4-regulates-camkii-creb-pathway-in-spinal-neurons-that-underlies-cancer-induced-bone-pain
#10
Xue-Ming Hu, Hui Zhang, Heng Xu, Hai-Long Zhang, Li-Ping Chen, Wen-Qiang Cui, Wei Yang, Wen Shen
We previously demonstrated that the chemokine receptor CXCR4 plays an important role in cancer-induced bone pain by activating spinal neurons and glial cells. However, the specific neuronal mechanism of CXCR4 signaling is not clear. We further report that CXCR4 contributes to the activation of the neuronal CaMKII/CREB pathway in cancer-induced bone pain. We used a tumor cell implantation (TCI) model and observed that CXCR4, p-CaMKII and p-CREB were persistently up-regulated in spinal neurons. CXCR4 also co-expressed with p-CaMKII and p-CREB, and mediated p-CaMKII and p-CREB expression after TCI...
June 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28637507/dysregulated-expression-of-long-noncoding-rnas-in-gynecologic-cancers
#11
REVIEW
Elahe Seyed Hosseini, Matthieu Meryet-Figuiere, Hamed Sabzalipoor, Hamed Haddad Kashani, Hossein Nikzad, Zatollah Asemi
Cancers of the female reproductive system include ovarian, uterine, vaginal, cervical and vulvar cancers, which are termed gynecologic cancer. The emergence of long noncoding RNAs (lncRNAs), which are believed to play a crucial role in several different biological processes, has made the regulation of gene expression more complex. Although the function of lncRNAs is still rather elusive, their broad involvement in the initiation and progression of various cancers is clear. They are also involved in the pathogenesis of cancers of the female reproductive system...
June 21, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28637493/the-role-of-nlrp3-inflammasome-in-5-fluorouracil-resistance-of-oral-squamous-cell-carcinoma
#12
Xiaodong Feng, Qingqiong Luo, Han Zhang, Han Wang, Wantao Chen, Guangxun Meng, Fuxiang Chen
BACKGROUND: 5-Fluorouracil (5-FU) is a widely used drug for the therapy of cancer. However, the chemoresistance of tumor cells to 5-FU usually limits its clinical effectiveness. In this study, we explored the role of NLRP3 inflammasome in 5-FU resistance of oral squamous cell carcinoma (OSCC). METHODS: The mRNA and protein expression levels of NLRP3, Caspase1 and IL-1β in resected OSCC specimens or cell lines were measured respectively by quantitative real time-PCR (qRT-PCR) and western blot...
June 21, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28637416/mixed-micelles-as-nano-polymer-therapeutics-of-docetaxel-increased-in-vitro-cytotoxicity-and-decreased-in-vivo-toxicity
#13
Arehalli S Manjappa, Popat S Kumbhar, Prajakta S Khopade, Ajit B Patil, John I Disouza
Docetaxel (DTX) has been used to treat several types of cancers, but it has provided pharmaceutical challenges due to its poor water solubility and toxicities associated with the co-solvents (tween-80 and ethanol). Nanopolymer therapeutics can be engineered to deliver anticancer agent specifically to cancer cells, thereby leaving normal healthy cells unaffected by toxic drugs such as DTX. The objective of the present study was to synthesize the polyacrylic acid (PAA)-DTX conjugate (PAADC) and preparation of nanopolymer therapeutics such as PAADC/DSPE-mPEG2000 mixed micelles (PAADC-DP MMs)...
June 21, 2017: Current Drug Delivery
https://www.readbyqxmd.com/read/28637005/cxcl13-is-androgen-responsive-and-involved-in-androgen-induced-prostate-cancer-cell-migration-and-invasion
#14
Long Fan, Qingyi Zhu, Li Liu, Cuicui Zhu, Haojie Huang, Shan Lu, Ping Liu
Androgen receptor (AR) is a key transcription factor playing a critical role in prostate cancer (PCa) initiation and progression. However, the molecular mechanisms of AR action in prostate cancer are not very clear. CXCL13, known as B cell attracting chemokine1 (BCA-1), is a member of CXC chemokine family and relevant to cancer metastasis. This study shows that CXCL13 is an androgen-responsive gene and involved in AR-induced PCa cell migration and invasion. In clinical specimens, expression of CXCL13 in PCa tissues is markedly higher than that in adjacent normal tissues...
June 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28635256/in-situ-gelation-induced-death-of-cancer-cells-based-on-proteinosomes
#15
Yuting Zhou, Jianmin Song, Lei Wang, Xuting Xue, Xiaoman Liu, Hui Xie, Xin Huang
Hydrogel is quite a nice kind of material, which can be utilized as the platform for cell culture. However, when bulky hydrogel was formed inside cancer cells, results would be changed. In this study, we showed a way of in situ gelation inside the cells which could induce the death of cancer cells. A glutathione (GSH) responsive proteinosomes, with nice biocompatibility, were prepared as carriers of sodium alginate to be endocytosed by cancer cells, where the chelation between sodium alginate and free calcium ions in the culture medium occurred during the diffusion process...
June 21, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28633075/elective-unilateral-nodal-irradiation-in-head-and-neck-squamous-cell-carcinoma-a-paradigm-shift
#16
A Al-Mamgani, M Verheij, M W M van den Brekel
There is a long-standing convention to irradiate the great majority of head and neck squamous cell carcinoma (HNSCC) electively to both sides of the neck, to reduce the theoretically increased risk of contralateral regional failure (cRF). With the currently available diagnostic imaging techniques this treatment paradigm means, in our opinion, an overtreatment in considerable proportion of these patients. From all the published studies (n = 11, with 1116 patients treated in total), the incidence of cRF in patients with oropharyngeal cancer treated to one side of the neck is 2...
June 17, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28632992/targeting-the-rhogtpase-rock-pathway-for-the-treatment-of-vhl-hif-pathway-driven-cancers
#17
Jordan M Thompson, Jaime Landman, Olga V Razorenova
The loss of the von Hippel-Lindau (VHL) tumor-suppressor is a major driver of Clear Cell Renal Cell Carcinoma (CC-RCC) resulting in the stabilization and overactivation of hypoxia inducible factors (HIFs). ROCK 1 is a well-known protein serine/threonine kinase which is recognized as having a role in cancer including alterations in cell motility, metastasis and angiogenesis. As a function of the later effect, we recently investigated and identified a synthetic lethal interaction between VHL loss and ROCK1 inhibition in CC-RCC that is dependent on HIF overactivation...
June 20, 2017: Small GTPases
https://www.readbyqxmd.com/read/28631135/long-term-clinical-benefit-from-salvage-egfr-tyrosine-kinase-inhibitors-in-advanced-non-small-cell-lung-cancer-patients-with-egfr-wild-type-tumors
#18
F Koinis, A Voutsina, A Kalikaki, A Koutsopoulos, E Lagoudaki, E Tsakalaki, E K Dermitzaki, E Kontopodis, A G Pallis, V Georgoulias, A Kotsakis
BACKGROUND: Erlotinib has been approved for the management of NSCLC patients after failure of the first or subsequent line of chemotherapy. Although the efficacy of erlotinib is clearly associated with the presence of EGFR mutations, there is a subset of patients with EGFR wild-type (EGFRwt) tumors who impressively respond. PATIENTS AND METHODS: Patients with EGFRwt NSCLC who received salvage (≥2nd line) treatment with erlotinib for a prolonged period (>6 months), were sought from the database of the Hellenic Oncology Research Group...
June 19, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28631038/the-significance-of-timd4-expression-in-clear-cell-renal-cell-carcinoma
#19
Hiromu Yano, Takanobu Motoshima, Chaoya Ma, Cheng Pan, Sohsuke Yamada, Toshiyuki Nakayama, Shohei Kitada, Naohiro Fujimoto, Tomomi Kamba, Motohiro Takeya, Yoshihiro Komohara
T-cell immunoglobulin and mucin domain (TIMD) family genes are related to innate immune responses. TIMD4 is a receptor for phosphatidylserine and is involved in the phagocytosis of apoptotic cells by macrophages. In the present study, we found that TIMD4 is expressed on the cancer cells of patients with clear cell renal cell carcinoma (ccRCC). TIMD4 was immunostained in the resected samples of 89 patients diagnosed as ccRCC. High expression of TIMD4 in cancer cells was closely related to short progression free survival time; however, it was not correlated with other clinicopathological factors...
June 19, 2017: Medical Molecular Morphology
https://www.readbyqxmd.com/read/28630426/the-down-regulation-of-slc7a11-enhances-ros-induced-p-gp-over-expression-and-drug-resistance-in-mcf-7-breast-cancer-cells
#20
Chun Ge, Bei Cao, Dong Feng, Fang Zhou, Jingwei Zhang, Na Yang, Siqi Feng, Guangji Wang, Jiye Aa
Adriamycin (ADR) induces the over-expression of P-glycoprotein (P-gp) and multiple drug resistance in breast cancer cells. However, the biochemical process and underlying mechanisms are not clear. Our previous study revealed that ADR increased reactive oxygen species (ROS) generation and decreased glutathione (GSH) biosynthesis, while N-acetylcysteine, the ROS scavenger, reversed the over-expression of P-gp. The present study showed that ADR inhibited the influx of cystine (the source material of GSH) and the activity of the SLC7A11 transporter (in charge of cystine uptake) in MCF-7 cells...
June 19, 2017: Scientific Reports
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