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https://www.readbyqxmd.com/read/29031230/astatine-211-labeled-anti-her2-5f7-single-domain-antibody-fragment-conjugates-radiolabeling-and-preliminary-evaluation
#1
Jaeyeon Choi, Ganesan Vaidyanathan, Eftychia Koumarianou, Choong Mo Kang, Michael R Zalutsky
INTRODUCTION: Derived from heavy chain only camelid antibodies, ~15-kDa single-domain antibody fragments (sdAbs) are an attractive platform for developing molecularly specific imaging probes and targeted radiotherapeutics. The rapid tumor accumulation and normal tissue clearance of sdAbs might be ideal for use with (211)At, a 7.2-h half-life α-emitter, if appropriate labeling chemistry can be devised to trap (211)At in cancer cells after sdAb binding. This study evaluated two reagents, [(211)At]SAGMB and iso-[(211)At]SAGMB, for this purpose...
September 19, 2017: Nuclear Medicine and Biology
https://www.readbyqxmd.com/read/29031204/ginkgetin-inhibits-growth-of-breast-carcinoma-via-regulating-mapks-pathway
#2
Jun Cao, Chuang Tong, Yanyan Liu, Jianguo Wang, Xiaoyan Ni, Mao-Ming Xiong
The purpose of present study was to investigate anti-tumor activity of Ginkgetin (GK) and its mechanism of action in breast cancer. The effects of GK on growth of human breast cancer cell lines MDA-MB-231, BT-474 and MCF-7 were examined by MTT assay. Cells apoptosis in MCF-7 cells were analyzed by TUNEL staining and annexin-V and propidium iodide double staining. The effects of GK on expression of apoptotic associated proteins and mitogen-activated protein kinases (MAPKs) were determined by western blotting...
October 11, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29031202/targeting-of-cell-cycle-and-let-7a-stat3-pathway-by-niclosamide-inhibits-proliferation-migration-and-invasion-in-oral-squamous-cell-carcinoma-cells
#3
Xiaoxu Li, Ruiyu Ding, Zewen Han, Zeyun Ma, Yixiang Wang
The low median survival rate of oral squamous cell carcinoma (OSCC) is associated with chemotherapeutic resistance. Niclosamide is an oral anti-helminthic drug, its anti-cancer effect has been reported in recent years. However, the effect of niclosamide on OSCC remains largely unknown. In this study, we, for the first time, investigated the underlying mechanisms from cell cycle arrest and let-7a/STAT3 axis through CCK-8, cell cycle, apoptosis, wound healing, Transwell invasion, generation of stable cell line, real-time PCR, and western blot assays using two OSCC cell lines WSU-HN6 and Tca83...
October 11, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29031195/ginsenoside-rg3-attenuates-cisplatin-resistance-in-lung-cancer-by-downregulating-pd-l1-and-resuming-immune
#4
Zhansheng Jiang, Yanfang Yang, Yinli Yang, Yu Zhang, Zhensong Yue, Zhanyu Pan, Xiubao Ren
Programmed death ligand 1 (PD-L1) as one the most important immune checkpoint was verified to involve in chemotherapy resistance in non-small cell lung cancer (NSCLC). Ginsenoside Rg3 is isolated from Chinese herb-Panax ginseng which is recognized to boost immune and has anti-cancer activity against a majority of carcinomas including NSCLC. In this study, we aim to identify whether Rg3 could attenuate the PD-L1 expression induced by resistance to cisplatin and draw out the underlying mechanisms of PD-L1 in this process...
October 11, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29031074/synthesis-antiproliferative-anti-tubulin-activity-and-docking-study-of-new-1-2-4-triazoles-as-potential-combretastatin-analogues
#5
Muhamad Mustafa, Dalia Abdelhamid, ElShimaa M N Abdelhafez, Mahmoud A A Ibrahim, Amira M Gamal-Eldeen, Omar M Aly
Combretastatin A4 (CA4) is a natural product characterized by a powerful inhibition of tubulin polymerization and a potential anticancer activity. However, therapeutic application of CA4 is substantially hindered due to geometric isomerization. In the current study, new cis-restricted Combretastatin A4 analogues containing 1,2,4-triazle in place of the olefinic bond were designed and synthesized. The synthesized compounds were evaluated for their in vitro antiproliferative activity in human hepatocellular carcinoma HepG2 and leukemia HL-60 cell lines using MTT assay...
September 28, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29031066/serendipitous-discovery-of-potent-human-head-and-neck-squamous-cell-carcinoma-anti-cancer-molecules-a-fortunate-failure-of-a-rational-molecular-design
#6
Chiara Zagni, Venerando Pistarà, Luciana A Oliveira, Rogerio M Castilho, Giovanni Romeo, Ugo Chiacchio, Antonio Rescifina
Histone deacetylase inhibitors (HDACis) play an important role as valuable drugs targeted to cancer therapy: several HDACis are currently being tested in clinical trials. Two new potential HDACis 1a and 1d, characterized by the presence of a biphenyl-4-sulfonamide group as a connection unit between the N-{4-[(E)-(2-formylhydrazinylidene)methyl]-3-hydroxyphenyl} and the 2-hydroxy-N-(trifluoroacetyl)benzamide moiety, respectively, as two zinc-binding group (ZBG), have been designed, synthesized and tested for their biological activity...
October 5, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29031063/anticancer-properties-of-4-thiazolidinone-derivatives-depend-on-peroxisome-proliferator-activated-receptor-gamma-ppar%C3%AE
#7
Konrad A Szychowski, Marcin L Leja, Danylo V Kaminskyy, Anna P Kryshchyshyn, Urszula E Binduga, Oleh R Pinyazhko, Roman B Lesyk, Jakub Tobiasz, Jan Gmiński
Peroxisome proliferator-activated receptors (PPARs) play an important role in numerous chronic diseases such as diabetes, obesity, atherosclerosis and cancer, and PPAR modulators are among the approved drugs and drug-candidates for their treatment. The aim of this study was to elucidate the involvement of PPARs in the mechanism of cytotoxic and pro-apoptotic action of novel anticancer 4-thiazolidinone derivatives (Les-2194, Les-3377, Les-3640) and approved 4-thiazolidinones (Rosiglitazone, Pioglitazone) towards the human squamous carcinoma (SCC-15) cell line...
September 30, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29029123/outcome-of-elevated-ca125-values-from-primary-care-following-implementation-of-ovarian-cancer-guidelines
#8
S Michael Crawford, Colin Evans
Background: Ovarian cancer presents later in the UK compared to economically similar countries. National guidance suggests measuring CA125 in primary care as a means of bringing patients to specialist attention. Aim: To investigate the outcome of CA125 values measured in accordance with this policy. Setting and design: Examination of the laboratory records of female patients from the usual catchment population of one general hospital in whom CA125 was measured from primary care in a calendar year...
September 28, 2017: Family Practice
https://www.readbyqxmd.com/read/29029040/herbacetin-suppresses-cutaneous-squamous-cell-carcinoma-and-melanoma-cell-growth-by-targeting-akt-and-odc
#9
Dong Joon Kim, Mee-Hyun Lee, KangDong Liu, Do Young Lim, Eunmiri Roh, Hanyong Chen, Sung-Hyun Kim, Jung-Hyun Shim, Myoung Ok Kim, Wenwen Li, Fayang Ma, Mangaladoss Fredimoses, Ann M Bode, Zigang Dong
Herbacetin is a flavonol compound that is found in plants such as flaxseed and ramose scouring rush herb, it possesses a strong antioxidant capacity, and exerts anticancer effects on colon and breast cancer. However, the effect of herbacetin on skin cancer has not been investigated. Herein, we identified herbacetin as a dual V-akt murine thymoma viral oncogene homolog (AKT) and ornithine decarboxylase (ODC) inhibitor, and illustrated its anticancer effects in vitro and in vivo against cutaneous squamous cell carcinoma (SCC) and melanoma cell growth...
September 23, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/29029037/functional-variants-in-the-low-density-lipoprotein-receptor-gene-are-associated-with-clear-cell-renal-cell-carcinoma-susceptibility
#10
Gui-Ming Zhang, Meng-Yun Wang, Ya-Nan Liu, Yao Zhu, Fang-Ning Wan, Qing-Yi Wei, Ding-Wei Ye
Recent studies indicate that abnormal levels of low-density lipoprotein (LDL), which is an important component of dyslipidaemia, are associated with alterations to cancer risk, including that of renal cell carcinoma (RCC). Single nucleotide polymorphisms at microRNA-binding sites contribute to cancer susceptibility and progression by affecting the mRNA function of target genes. In this case-control study, we examined the frequency of six potentially functional single nucleotide polymorphisms in the LDL receptor gene (LDLR) in 1004 clear cell RCC (ccRCC) patients and 1065 cancer-free subjects...
September 22, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/29029021/aetiological-heterogeneity-of-head-and-neck-squamous-cell-carcinomas-the-role-of-human-papillomavirus-infections-smoking-and-alcohol
#11
Nada J Farsi, Marie-Claude Rousseau, Nicolas Schlecht, Geneviève Castonguay, Paul Allison, Phuc Félix Nguyen-Tan, Denis Soulieres, Francois Coutlée, Michael Hier, Sreenath Madathil, Eduardo L Franco, Belinda Nicolau
Tobacco and alcohol consumption are the main risk factors for head and neck squamous cell carcinoma (HNSCC). In addition, human papillomavirus (HPV) infection plays a causal role in oropharyngeal cancer (OPC), a subset of HNSCC. We assessed the independent effects of tobacco, alcohol, and HPV infection on OPC risk in the Head and Neck Cancer(HeNCe) Life study, a hospital-based case-control study of HNSCC with frequency-matched controls by age and sex from four Montreal hospitals. Interviewers collected information on socio-demographic and behavioural factors...
September 28, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/29028842/in-vitro-investigation-of-head-and-neck-cancer-stem-cell-proportions-and-their-changes-following-x-ray-irradiation-as-a-function-of-hpv-status
#12
Paul Reid, Puthenparampil Wilson, Yanrui Li, Loredana G Marcu, Alexander H Staudacher, Michael P Brown, Eva Bezak
INTRODUCTION: Some head and neck squamous cell carcinomas (HNSCC) have a distinct aetiology, which depends on the presence of oncogenic human papilloma virus (HPV). Also, HNSCC contains cancer stem cells (CSCs) that have greater radioresistance and capacity to change replication dynamics in response to irradiation compared to non-clonogenic cells. Since there is limited data on CSCs in HNSCC as a function of HPV status, better understanding of their radiobiology may enable improved treatment outcome...
2017: PloS One
https://www.readbyqxmd.com/read/29028683/lung-cancer-associated-with-arsenic-ingestion-cell-type-specificity-and-dose-response
#13
Yau-Chang Kuo, Yu-Shing Lo, How-Ran Guo
BACKGROUND: Arsenic is a well-documented human carcinogen, and studies on urinary and skin cancers have shown that the carcinogenicity of ingested arsenic has cell-type specificity. To evaluate whether this is also true for lung cancers, we conducted a study on 243 townships in Taiwan. METHODS: The arsenic levels were assessed using measurement reports from a previous survey, and the incidence of lung cancer was assessed using the data gathered by the National Cancer Registry Program...
October 2017: Epidemiology
https://www.readbyqxmd.com/read/29028541/tuning-the-structure-of-aminoferrocene-based-anticancer-prodrugs-to-prevent-their-aggregation-in-aqueous-solution
#14
Steffen Daum, Svetlana Babiy, Helen Konovalova, Walter Hofer, Alexander Shtemenko, Natalia Shtemenko, Christina Janko, Christoph Alexiou, Andriy Mokhir
Aminoferrocene-based prodrugs are activated in cancer cells by reactive oxygen species (ROS). They were shown to exhibit high cytotoxicity towards a variety of cancer cell lines and primary cancer cells, but remain not toxic towards non-malignant cells. However, these prodrugs have rather high lipophilicity leading to relatively low water solubility. In particular, an n-octanol/water partition coefficient for the best aminoferrocene-based prodrug (2) was found to be 4.51±0.03. Though the approaches for decreasing lipophilicity are straightforward and include the addition of polar residues to the drug structure, these modifications also lead to dramatic decrease of cell permeability and, correspondingly, lower the activity of the drug...
September 15, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/29028510/comparison-of-virtual-monochromatic-series-iodine-overlay-maps-and-single-energy-ct-equivalent-images-in-head-and-neck-cancer-conspicuity
#15
Michael Kraft, Mohannad Ibrahim, Matthew Spector, Reza Forghani, Ashok Srinivasan
OBJECTIVE: To compare lesion conspicuity amongst DECT monochromatic series (40, 45, 50keV), and single-energy CT (SECT) equivalent images in head and neck squamous cell carcinomas (HNSCC). METHODS: Two readers compared DECT images to 70keV SECT equivalent series in 39 patients with HNSCC on lesion margin, enhancement, and overall conspicuity. RESULTS: The 45keV and 50keV images were significantly better (p-values ≤0.001) than the SECT equivalent in lesion enhancement, margins, and overall conspicuity for both readers...
September 29, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/29028099/the-diagnostic-value-of-determination-of-serum-golph3-associated-with-ca125-ca19-9-in-patients-with-ovarian-cancer
#16
H-Y Fan, D-M Duan, Y-F Liu
OBJECTIVE: To evaluate the value of three tumor markers serum Golgi phosphoprotein-3 (GOLPH3), cancer antigen 125 (CA125) and cancer antigen 19-9 (CA19.9) in the diagnosis and postoperative evaluation of ovarian cancer by detecting these three markers. PATIENTS AND METHODS: A total of 187 patients were studied and included in the ovarian cancer group, benign pelvic mass group, and the normal control group. The levels of serum Golgi phosphoprotein-3 (GOLPH3), cancer antigen 125 (CA125) and cancer antigen 199 (CA19...
September 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29028087/axillary-ectopic-lobular-carcinoma-of-breast-two-rare-case-reports
#17
A Conversi, M L Meggiorini, P Fino, G Soda, N Scuderi, M G Onesti
OBJECTIVE: The presence of ectopic or supernumerary breast tissue is a rare event, related to a not complete regression of breast tissue along the milk line. Primary ectopic breast cancer of the axilla can create many difficulties in differential diagnosis with subsequent delayed specific treatments. The incidence of ectopic breast tissue is 0.2-6%, and the axilla is the most common site involved. In this tissue, the same physiologic and pathologic changes as seen in ectopic breast tissue may occur, including carcinoma formation...
September 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29028085/nestin-and-cd146-expression-in-metaplastic-breast-cancer-stem-cell-therapy-in-need-lessons-reported-from-a-male-patient
#18
A Tampakis, E C Tampaki, D Trafalis, A Nonni, K Kontzoglou, E Patsouris, M Kontos, G Kouraklis
OBJECTIVE: Metaplastic breast carcinomas represent a rare subtype of breast cancer exhibiting aggressive clinical features. They appear as highly chemoresistant tumors, therefore showing poor outcome and high rates of local recurrence or distant metastasis. CASE REPORT: A 37-year-old greek man was referred to our hospital for evaluation of a locally advanced, ulcerated, fixed, irregular and hard in consistency mass covering his left breast and chest wall. Further work out with CT and biopsy of the tumor revealed a triple negative metaplastic breast cancer classified as cT4cN3cM1...
September 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29027828/folate-decorated-and-nir-activated-nanoparticles-based-on-platinum-iv-prodrugs-for-targeted-therapy-of-ovarian-cancer
#19
Yu Sun, Tian-Yi Shi, Ling-Yun Zhou, Yu-Yan Zhou, Bai-Wang Sun, Xiao-Ping Liu
Platinum-based drugs are used to treat a variety of cancers but have many side effects such as nephrotoxicity and neurotoxicity. A folate-decorated nanoparticles system with a good drug payload can selectively deliver drugs into folate receptor (FR)-overexpressing cancer cells to prevent the shortcomings of platinum-based chemotherapy. Here, folate-decorated and near-infrared (NIR) laser-activated nanoparticles (abbreviated as Pt(IV)-FINPs) were prepared via ultrasonic self-assembling of platinum(IV) prodrug c,c,t-Pt(NH3)2Cl2(OOCCH2CH2COOH)2, folic acid (FA)-functionalized lipid DSPE-PEG-FA and NIR fluorescent dye indocyanine green (ICG)...
October 13, 2017: Journal of Microencapsulation
https://www.readbyqxmd.com/read/29027712/upregulation-of-ube2q1-via-gene-copy-number-gain-in-hepatocellular-carcinoma-promotes-cancer-progression-through-%C3%AE-catenin-egfr-pi3k-akt-mtor-signaling-pathway
#20
Bin Zhang, Chao Deng, Lei Wang, Fan Zhou, Shu Zhang, Wei Kang, Ping Zhan, Juan Chen, Shanshan Shen, Huimin Guo, Ming Zhang, Yi Wang, Feng Zhang, Wei Zhang, Jiangqiang Xiao, Bo Kong, Helmut Friess, Yuzheng Zhuge, Hongli Yan, Xiaoping Zou
Hepatocellular carcinoma (HCC) is the most common type of liver cancer and represents a highly malignant tumor with a poor prognosis. Therapeutic modalities for HCC are limited and generally ineffective. UBE2Q1 is a putative E2 ubiquitin conjugating enzyme, and has been shown to be overexpressed in various types of cancers including HCC. How UBE2Q1 contributes to hepatocarcinogenesis remains unknown. Here, we show that UBE2Q1 is up-regulated in HCC cell lines and in a subset of human HCC tissues. Up-regulation of UBE2Q1 in primary HCC tumors was significantly correlated with shorter overall survival and disease-free survival...
October 13, 2017: Molecular Carcinogenesis
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