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https://www.readbyqxmd.com/read/28230065/in-vivo-evaluation-of-a-novel-format-of-a-bivalent-her3-targeting-and-albumin-binding-therapeutic-affibody-construct
#1
Tarek Z Bass, Maria Rosestedt, Bogdan Mitran, Fredrik Y Frejd, John Löfblom, Vladimir Tolmachev, Stefan Ståhl, Anna Orlova
Overexpression of human epidermal growth factor receptor 3 (HER3) is involved in resistance to several therapies for malignant tumours. Currently, several anti-HER3 monoclonal antibodies are under clinical development. We introduce an alternative approach to HER3-targeted therapy based on engineered scaffold proteins, i.e. affibody molecules. We designed a small construct (22.5 kDa, denoted 3A3), consisting of two high-affinity anti-HER3 affibody molecules flanking an albumin-binding domain ABD, which was introduced for prolonged residence in circulation...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28212385/the-effect-of-tumour-size-on-drug-transport-and-uptake-in-3-d-tumour-models-reconstructed-from-magnetic-resonance-images
#2
Wenbo Zhan, Wladyslaw Gedroyc, Xiao Yun Xu
Drug transport and its uptake by tumour cells are strongly dependent on tumour properties, which vary in different types of solid tumours. By simulating the key physical and biochemical processes, a numerical study has been carried out to investigate the transport of anti-cancer drugs in 3-D tumour models of different sizes. The therapeutic efficacy for each tumour is evaluated by using a pharmacodynamics model based on the predicted intracellular drug concentration. Simulation results demonstrate that interstitial fluid pressure and interstitial fluid loss vary non-linearly with tumour size...
2017: PloS One
https://www.readbyqxmd.com/read/28211676/electrochemical-genetic-profiling-of-single-cancer-cells
#3
Josep L Acero Sanchez, Hamdi Joda, Olivier Yves Henry, Beata W Solnestam, Linda Kvastad, Pelin S Akan, Joakim Lundeberg, Nadja Laddach, Dheeraj Ramakrishnan, Ian Riley, Carmen Schwind, Daniel Latta, Ciara K O' Sullivan
Recent understandings in the development and spread of cancer have lead to the realisation of novel single cell analysis platforms focused on circulating tumour cells (CTCs). A simple, rapid and inexpensive analytical platform capable of providing genetic information of these rare cells is highly desirable to support clinicians and researchers alike to either support the selection or adjustment of therapy or provide fundamental insights into cell function and cancer progression mechanisms. We report on the genetic profiling of single cancer cells, exploiting a combination of multiplex ligation-dependent probe amplification (MLPA) and electrochemical detection...
February 17, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28211508/mvp-mediated-exosomal-sorting-of-mir-193a-promotes-colon-cancer-progression
#4
Yun Teng, Yi Ren, Xin Hu, Jingyao Mu, Abhilash Samykutty, Xiaoying Zhuang, Zhongbin Deng, Anil Kumar, Lifeng Zhang, Michael L Merchant, Jun Yan, Donald M Miller, Huang-Ge Zhang
Exosomes are emerging mediators of intercellular communication; whether the release of exosomes has an effect on the exosome donor cells in addition to the recipient cells has not been investigated to any extent. Here, we examine different exosomal miRNA expression profiles in primary mouse colon tumour, liver metastasis of colon cancer and naive colon tissues. In more advanced disease, higher levels of tumour suppressor miRNAs are encapsulated in the exosomes. miR-193a interacts with major vault protein (MVP)...
February 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/28202659/the-short-and-the-long-non-coding-rnas-and-growth-factors-in-cancer-progression
#5
REVIEW
Aldema Sas-Chen, Swati Srivastava, Yosef Yarden
A relatively well-understood multistep process enables mutation-bearing cells to form primary tumours, which later use the circulation system to colonize new locations and form metastases. However, in which way the emerging abundance of different non-coding RNAs supports tumour progression is poorly understood. Here, we review new lines of evidence linking long and short types of non-coding RNAs to signalling pathways activated in the course of cancer progression by growth factors and by the tumour micro-environment...
February 8, 2017: Biochemical Society Transactions
https://www.readbyqxmd.com/read/28202367/exosomes-therapy-delivery-tools-and-biomarkers-of-diseases
#6
REVIEW
Lucio Barile, Giuseppe Vassalli
Virtually all cells in the organism secrete extracellular vesicles (EVs), a heterogeneous population of lipid bilayer membrane-enclosed vesicles that transport and deliver payloads of proteins and nucleic acids to recipient cells, thus playing central roles in cell-cell communications. Exosomes, nanosized EVs of endosomal origin, regulate many pathophysiological processes including immune responses and inflammation, tumour growth, and infection. Healthy subjects and patients with different diseases release exosomes with different RNA and protein contents into the circulation, which can be measured as biomarkers...
February 12, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28198401/enrichment-of-circulating-head-and-neck-tumour-cells-using-spiral-microfluidic-technology
#7
Arutha Kulasinghe, Thao Huynh Phuoc Tran, Tony Blick, Ken O'Byrne, Erik W Thompson, Majid E Warkiani, Colleen Nelson, Liz Kenny, Chamindie Punyadeera
Whilst locoregional control of head and neck cancers (HNCs) has improved over the last four decades, long-term survival has remained largely unchanged. A possible reason for this is that the rate of distant metastasis has not changed. Such disseminated disease is reflected in measurable levels of cancer cells in the blood of HNC patients, referred to as circulating tumour cells (CTCs). Numerous marker-independent techniques have been developed for CTC isolation and detection. Recently, microfluidics-based platforms have come to the fore to avoid molecular bias...
February 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28194229/circulating-and-tissue-biomarkers-in-early-stage-non-small-cell-lung-cancer
#8
Caterina Fumagalli, Fabrizio Bianchi, Paola Rafaniello Raviele, Davide Vacirca, Giovanni Bertalot, Cristiano Rampinelli, Matteo Lazzeroni, Bernardo Bonanni, Giulia Veronesi, Nicola Fusco, Massimo Barberis, Elena Guerini-Rocco
OBJECTIVE: We sought to characterise circulating and tissue tumour biomarkers of patients who developed early-stage non-small cell lung cancer (NSCLC) during long-term follow-up of a chemoprevention trial (NCT00321893). MATERIALS AND METHODS: Blood and sputum samples were collected from 202 high-risk asymptomatic individuals with CT-detected stable lung nodules. Real-time PCR was performed on plasma to quantify free circulating DNA. Baseline serum was investigated with a previously validated test based on 13 circulating miRNAs (miR-Test)...
2017: Ecancermedicalscience
https://www.readbyqxmd.com/read/28187917/oxygen-and-placental-development-parallels-and-differences-with-tumour-biology
#9
Graham J Burton, Eric Jauniaux, Andrew J Murray
Human placentation involves the invasion of the conceptus into the wall of the uterus, and establishment of a blood supply from the maternal spiral arteries. The placenta has therefore been likened to a malignant tumour, albeit a highly regulated one. Oxygen plays an important role in controlling both placental development and tumour behaviour. In the placenta, early development takes place in a physiological low oxygen environment, which undergoes a transition with onset of the full maternal arterial circulation towards the end of the first trimester...
February 1, 2017: Placenta
https://www.readbyqxmd.com/read/28185532/the-metabolites-in-peripheral-blood-mononuclear-cells-showed-greater-differences-between-patients-with-impaired-fasting-glucose-or-type-2-diabetes-and-healthy-controls-than-those-in-plasma
#10
Minjoo Kim, Minkyung Kim, Ji Yun Han, Sang-Hyun Lee, Sun Ha Jee, Jong Ho Lee
To determine differences between peripheral blood mononuclear cells and the plasma metabolites in patients with impaired fasting glucose or type 2 diabetes and healthy controls. In all, 65 nononobese patients (aged 30-70 years) with impaired fasting glucose or type 2 diabetes and 65 nonobese sex-matched healthy controls were included, and fasting peripheral blood mononuclear cell and plasma metabolomes were profiled. The diabetic or impaired fasting glucose patients showed higher circulating and peripheral blood mononuclear cell lipoprotein phospholipase A2 activities, high-sensitivity C-reactive protein and tumour necrosis factor-α than controls...
March 2017: Diabetes & Vascular Disease Research
https://www.readbyqxmd.com/read/28183782/telomere-maintenance-in-soft-tissue-sarcomas
#11
REVIEW
Nicholas Eastley, Barbara Ottolini, Carmen Garrido, Jacqueline A Shaw, Thomas Alasdair McCulloch, Robert U Ashford, Nicola J Royle
Soft tissue sarcomas (STS) are a diverse group of heterogeneous malignant tumours derived from mesenchymal tissues. Over 50 different STS subtypes are recognised by WHO, which show a wide range of different biological behaviours and prognoses. At present, clinicians managing this complex group of tumours face several challenges. This is reflected by the relatively poor outcome of patients with STSs compared with many other solid malignant tumours. These include difficulties securing accurate diagnoses, a lack of effective systemic treatments and absence of any sensitive circulating biomarkers to monitor patients throughout their treatment and follow-up...
February 9, 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28183253/optimal-management-of-prostate-cancer-based-on-its-natural-clinical-history
#12
Gaetano Facchini, Francesco Perri, Gabriella Misso, Carmine D Aniello, Giuseppina Della Vittoria Scarpati, Sabrina Rossetti, Chiara Della Pepa, Salvatore Pisconti, Gerhard Unteregger, Alessia Cossu, Michele Caraglia, Massimiliano Berretta, Carla Cavaliere
Prostate cancer is the most common malignancy in males and, despite a marked improvement in diagnostic techniques, a not small percentage of prostate tumours is still diagnosed in advanced stage. It is now clear that prostate cancer passes through distinct phases during its natural history, starting from an initial phase, in which the disease has a locoregional extent, until a very late phase when it becomes refractory to hormone therapy. It is important to distinguish between local disease, in which tumor may be considered localized in the gland and a systemic disease characterized by high tumor burden and/or dissemination of circulating tumour cells...
February 8, 2017: Current Cancer Drug Targets
https://www.readbyqxmd.com/read/28182321/detection-and-oncological-effect-of-circulating-tumour-cells-in-patients-with-variant-urothelial-carcinoma-histology-treated-with-radical-cystectomy
#13
Armin Soave, Sabine Riethdorf, Roland Dahlem, Sarah Minner, Lars Weisbach, Oliver Engel, Margit Fisch, Klaus Pantel, Michael Rink
OBJECTIVES: To investigate for the presence of circulating tumour cells (CTC) in patients with variant urothelial carcinoma of the bladder (UCB) histology treated with radical cystectomy (RC), and to determine their impact on oncological outcomes. PATIENTS AND METHODS: We prospectively collected data of 188 patients with UCB treated with RC without neoadjuvant chemotherapy. Pathological specimens were meticulously reviewed for pure and variant UCB histology. Preoperatively collected blood samples (7...
February 9, 2017: BJU International
https://www.readbyqxmd.com/read/28181495/expression-of-%C3%AE-globin-by-cancer-cells-promotes-cell-survival-during-blood-borne-dissemination
#14
Yu Zheng, David T Miyamoto, Ben S Wittner, James P Sullivan, Nicola Aceto, Nicole Vincent Jordan, Min Yu, Nezihi Murat Karabacak, Valentine Comaills, Robert Morris, Rushil Desai, Niyati Desai, Erin Emmons, John D Milner, Richard J Lee, Chin-Lee Wu, Lecia V Sequist, Wilhelm Haas, David T Ting, Mehmet Toner, Sridhar Ramaswamy, Shyamala Maheswaran, Daniel A Haber
Metastasis-competent circulating tumour cells (CTCs) experience oxidative stress in the bloodstream, but their survival mechanisms are not well defined. Here, comparing single-cell RNA-Seq profiles of CTCs from breast, prostate and lung cancers, we observe consistent induction of β-globin (HBB), but not its partner α-globin (HBA). The tumour-specific origin of HBB is confirmed by sequence polymorphisms within human xenograft-derived CTCs in mouse models. Increased intracellular reactive oxygen species (ROS) in cultured breast CTCs triggers HBB induction, mediated through the transcriptional regulator KLF4...
February 9, 2017: Nature Communications
https://www.readbyqxmd.com/read/28179316/correlation-of-blood-t-cells-to-intratumoural-density-and-location-of-cd3-and-cd8-t-cells-in-colorectal-cancer
#15
Hanne R Hagland, Dordi Lea, Martin M Watson, Kjetil Søreide
AIM: To test the feasibility of conducting parallel analyses of circulating T-cells in blood and intratumoural T-cells in colorectal cancer. A pre-operative 'liquid biopsy' to determine immune status would facilitate clinical decision-making. MATERIALS AND METHODS: A total of 18 patients with stage I-III colorectal cancer (CRC) were included. Blood was analyzed for T-cell type (CD3(+), CD4(+) and CD8(+)) and count using flow cytometry. Intratumoural T-cells were stained using immunohistochemistry and quantified by digital pathology...
2017: Anticancer Research
https://www.readbyqxmd.com/read/28177480/circulating-tumour-cells-and-pathological-complete-response-independent-prognostic-factors-in-inflammatory-breast-cancer-in-a-pooled-analysis-of-two-multicentre-phase-ii-trials-beverly-1-and-2-of-neoadjuvant-chemotherapy-combined-with-bevacizumab
#16
J-Y Pierga, F-C Bidard, A Autret, T Petit, F Andre, F Dalenc, C Levy, J-M Ferrero, G Romieu, J Bonneterre, F Lerebours, T Bachelot, P Kerbrat, M Campone, J-C Eymard, M-A Mouret-Reynier, J Gligorov, A-C Hardy-Bessard, A Lortholary, P Soulie, J-M Boher, C Proudhon, E Charafe-Jaufret, J Lemonnier, F Bertucci, P Viens
No abstract text is available yet for this article.
January 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28165076/zwitterionic-gold-nanorods-low-toxicity-and-high-photothermal-efficacy-for-cancer-therapy
#17
Huangyong Jiang, Dong Chen, Dongbo Guo, Nan Wang, Yue Su, Xin Jin, Gangsheng Tong, Xinyuan Zhu
Novel "zwitterionic" gold nanorods (Au NRs) were constructed through a facile ligand exchange process between cetyltrimethylammonium bromide (CTAB)-Au NRs and the zwitterionic block polymer {poly(2-methacryloyloxyethyl phosohorylcholine)-b-poly(lipoic methacrylate) (pMPC-b-pLA)}. In vitro, they exhibited low dark cytotoxicity and a high therapeutic efficacy to cancer cells. Their blood circulation half-life in vivo (t1/2, ∼10 h) was 20-fold longer than that of CTAB-Au NRs (t1/2, <30 min). After intravenous administration, they accumulated in tumour sites via an enhanced permeability and retention (EPR) effect and enabled destruction of human xenograft tumours in mice after exposure of the tumour location to NIR laser irradiation at 808 nm...
February 6, 2017: Biomaterials Science
https://www.readbyqxmd.com/read/28163102/the-peritumoural-adipose-tissue-microenvironment-and-cancer-the-roles-of-fatty-acid-binding-protein-4-and-fatty-acid-binding-protein-5
#18
S Guaita-Esteruelas, J Gumà, L Masana, J Borràs
The adipose tissue microenvironment plays a key role in tumour initiation and progression because it provides fatty acids and adipokines to tumour cells. The fatty acid-binding protein (FABP) family is a group of small proteins that act as intracellular fatty acid transporters. Adipose-derived FABPs include FABP4 and FABP5. Both have an important role in lipid-related metabolic processes and overexpressed in many cancers, such as breast, prostate, colorectal and ovarian. Moreover, their expression in peritumoural adipose tissue is deregulated, and their circulating levels are upregulated in some tumours...
February 3, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28149842/inertia-based-microfluidic-capture-and-characterisation-of-circulating-tumour-cells-for-the-diagnosis-of-lung-cancer
#19
Dimple Y Chudasama, Daria V Freydina, Maxim B Freidin, Maria Leung, Angeles Montero Fernandez, Alexandra Rice, Andrew G Nicholson, Emmanouil Karteris, Vladimir Anikin, Eric Lim
BACKGROUND: Routine clinical application of circulating tumour cells (CTCs) for blood based diagnostics is yet to be established. Despite growing evidence of their clinical utility for diagnosis, prognosis and treatment monitoring, the efficacy of a robust platform and universally accepted diagnostic criteria remain uncertain. We evaluate the diagnostic performance of a microfluidic CTC isolation platform using cytomorphologic criteria in patients undergoing lung cancer surgery. METHODS: Blood was processed from 51 patients undergoing surgery for known or suspected lung cancer using the ClearBridge ClearCell FX system(TM) (ClearBridge Biomedics, Singapore)...
December 2016: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28143425/higher-igfbp-1-to-igf-1-serum-ratio-predicts-unfavourable-survival-in-patients-with-nasopharyngeal-carcinoma
#20
Xinwei Feng, Jianhua Lin, Shan Xing, Wanli Liu, Ge Zhang
BACKGROUND: The insulin-like growth factor (IGF) system plays an important role in the development and progression of cancer. However, little is known about the expression of the IGF system components and their clinicopathological significance and prognostic value in nasopharyngeal carcinoma (NPC). METHODS: IGF system components (IGF-1, IGF-2, IGF-1SR, IGFBP-1, IGFBP-2, IGFBP-3, IGFBP-4 and IGFBP-6) were quantified from the plasma of NPC patients and healthy individuals using the RayBio Human Cytokine Antibody Array...
January 31, 2017: BMC Cancer
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