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https://www.readbyqxmd.com/read/28926891/-advances-in-immune-checkpoint-inhibitors-in-gastrointestinal-cancer
#1
X R Zhu, L Z Zheng
Currently, immunotherapy is considered as the fourth major modality of cancer treatment except surgery, chemotherapy and radiotherapy. The new therapeutic approach based on immune checkpoint inhibitors is a landmark innovation. Strategies considering checkpoint inhibitors have shown good anti-tumor effect by targeting cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) and programmed cell death protein 1 (PD-1) or programmed cell death ligand 1 (PD-L1). Moreover, DNA mismatch repair-deficient tumors appear to be potential candidates for these therapies...
September 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28925482/microrna-509-5p-functions-as-an-anti-oncogene-in-breast-cancer-via-targeting-sod2
#2
Y-H Song, J Wang, G Nie, Y-J Chen, X Li, X Jiang, W-H Cao
OBJECTIVE: Breast cancer is one of the most common malignant tumors in women worldwide. Considering the poor therapeutic effect of breast cancer, we are supposed to dissect the functioning mode of miR-509-5p on breast cancer cell growth and metastasis, providing therapeutic targets for breast cancer. PATIENTS AND METHODS: Quantitative Real-time PCR (qRT-PCR) assay was employed to detect miR-509-5p expression level. CCK8 assay and colony formation assay were incorporated to assess cell viability and proliferation capacities...
August 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28923221/an-update-on-randomized-clinical-trials-in-breast-cancer
#3
REVIEW
Kayla Barnard, V Suzanne Klimberg
Numerous clinical trials reveal new innovations and therapies that continually change the treatment and prevention of breast cancer. Earlier trials have changed the standard of care from radical mastectomy to breast conservation therapy and individualized treatment based on tumor-specific biology. As research continues and long-term follow-up results become available, updated reviews on randomized clinics trials become exceedingly important in discerning the most effective and oncologically safe therapies to provide optimal outcomes...
October 2017: Surgical Oncology Clinics of North America
https://www.readbyqxmd.com/read/28923217/current-challenges-in-the-management-of-breast-cancer-brain-metastases
#4
REVIEW
Ciara C O'Sullivan, Nicole N Davarpanah, Jame Abraham, Susan E Bates
Approximately 50% of patients with advanced human epidermal growth factor 2 (HER2)-positive breast cancer and triple-negative breast cancer (TNBC) ultimately develop breast cancer brain metastases (BCBM), which are associated with significant morbidity and mortality. The advent of HER2-directed therapy resulted in greatly improved survival outcomes, but unfortunately at the price of an increased cumulative incidence of BCBM. We review challenges in the management of BCBM, and potential treatment strategies, including novel agents such as poly-adenosine diphosphate (ADP) ribose polymerase (PARP) inhibitors (olaparib, veliparib), cyclin-dependent kinase 4/6 (CDK4/6) inhibitors (palbociclib, abemaciclib), and taxane derivatives (eg, ANG1005 and TPI-287)...
April 2017: Seminars in Oncology
https://www.readbyqxmd.com/read/28922540/ape1-ref-1-knockdown-in-pancreatic-ductal-adenocarcinoma-characterizing-gene-expression-changes-and-identifying-novel-pathways-using-single-cell-rna-sequencing
#5
Fenil Shah, Emery Goossens, Nadia M Atallah, Michelle Grimard, Mark R Kelley, Melissa L Fishel
Apurinic/apyrimidinic endonuclease 1/redox factor-1 (APE1/Ref-1 or APE1) is a multifunctional protein that regulates numerous transcription factors associated with cancer-related pathways. Because APE1 is essential for cell viability, generation of APE1 knockout cell lines and determining a comprehensive list of genes regulated by APE1 has not been possible. To circumvent this challenge, we utilized single-cell RNA Sequencing to identify differentially expressed genes in relation to APE1 protein levels within the cell...
September 18, 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28921650/antibody-drug-conjugates-as-cancer-therapeutics-past-present-and-future
#6
Heather E Vezina, Monette Cotreau, Tae H Han, Manish Gupta
Antibody-drug conjugates (ADCs) represent an innovative therapeutic approach that provides novel treatment options and hope for patients with cancer. By coupling monoclonal antibodies (mAbs) to cytotoxic small-molecule payloads with a plasma-stable linker, ADCs offer the potential for increased drug specificity and fewer off-target effects than systemic chemotherapy. As evidence for the potential of these therapies, many new ADCs are in various stages of clinical development. Because their structure poses unique challenges to pharmacokinetic and pharmacodynamic characterization, it is critical to recognize the differences between ADCs and conventional chemotherapy in the design of ADC clinical development strategies...
October 2017: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28921643/bridging-adult-experience-to-pediatrics-in-oncology-drug-development
#7
Ruby Leong, Hong Zhao, Gregory Reaman, Qi Liu, Yaning Wang, Clinton F Stewart, Gilbert Burckart
Pediatric drug development in the United States has grown under the current regulations made permanent by the Food and Drug Administration Safety and Innovation Act of 2012. Over 1200 pediatric studies have now been submitted to the US FDA, but there is still a high rate of failure to obtain pediatric labeling for the indication pursued. Pediatric oncology represents special problems in that the disease is most often dissimilar to any cancer found in the adult population. Therefore, the development of drug dosing in pediatric oncology patients represents a special challenge...
October 2017: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28918872/-management-of-ablative-therapies-in-prostate-cancer
#8
E Barret, R Sanchez-Salas, M Galiano, N Cathala, A Mombet, D Prapotnich, F Rozet, A Gangi, H Lang, X Cathelineau
OBJECTIVES: To describe the specific modalities of ablative therapies management in prostate cancer. MATERIALS AND METHODS: A review of the scientific literature was performed in Medline database (http://www.ncbi.nlm.nih.gov) and Embase (http://www.embase.com) using different associations of keywords. Publications obtained were selected based on methodology, language and relevance. After selection, 61 articles were analysed. RESULTS: Development of innovations such as ablative therapies in prostate cancer induces specific modalities in their management, during pre-, per- and post-procedure...
September 14, 2017: Progrès en Urologie
https://www.readbyqxmd.com/read/28918408/effectiveness-cost-utility-and-implementation-of-a-decision-aid-for-patients-with-localised-prostate-cancer-and-their-partners-study-protocol-of-a-stepped-wedge-cluster-randomised-controlled-trial
#9
Hoda H M Al-Itejawi, Cornelia F van Uden-Kraan, Peter M van de Ven, Veerle M H Coupé, André N Vis, Jakko A Nieuwenhuijzen, Jeroen A van Moorselaar, Irma M Verdonck-de Leeuw
INTRODUCTION: Patient decision aids (PDAs) have been developed to help patients make an informed choice for a treatment option. Despite proven benefits, structural implementation falls short of expectations. The present study aims to assess the effectiveness and cost-utility of the PDA among newly diagnosed patients with localised prostate cancer and their partners, alongside implementation of the PDA in routine care. METHODS/ANALYSIS: A stepped-wedge cluster randomised trial will be conducted...
September 15, 2017: BMJ Open
https://www.readbyqxmd.com/read/28916955/multicenter-randomized-single-port-versus-multiport-laparoscopic-surgery-simple-trial-in-colon-cancer-an-interim-analysis
#10
Byung Mo Kang, Hyung Jin Kim, Bong-Hyeon Kye, Sang Chul Lee, Kil Yeon Lee, Sun Jin Park, Suk-Hwan Lee, Sang Woo Lim, Yoon Suk Lee, Ji Hoon Kim, Jinkwon Lee, Min Ki Kim, Jun-Gi Kim
BACKGROUND: Single-port laparoscopic surgery (SPLS) was recently introduced as an innovative minimally invasive surgery method. Retrospective studies have revealed the safety and feasibility of SPLS for colon cancer treatment. However, no prospective randomized trials have been performed. The multicenter, randomized SIMPLE (single-port versus multiport laparoscopic surgery) trial aimed to investigate short-term perioperative outcomes of SPLS for colon cancer treatment, compared with multiport laparoscopic surgery (MPLS)...
September 15, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28916141/in-vivo-multimodal-tumor-imaging-and-photodynamic-therapy-with-novel-theranostic-agents-based-on-the-porphyrazine-framework-chelated-gadolinium-iii-cation
#11
Diana V Yuzhakova, Svetlana A Lermontova, Ilya S Grigoryev, Maria S Muravieva, Alena I Gavrina, Marina V Shirmanova, Irina V Balalaeva, Larisa G Klapshina, Elena V Zagaynova
BACKGROUND: A promising strategy for cancer diagnosis and therapy is the development of an agent for multimodal imaging and treatment. In the present paper we report on two novel multifunctional agents prepared on the porphyrazine pigment platform using a gadolinium (III) cation chelated by red-fluorescent tetrapyrrole macrocycles (GdPz1 and GdPz2). METHODS: Spectral and magnetic properties of the compounds were analyzed. Monitoring of GdPz1 and GdPz2 accumulation in the murine colon carcinoma CT26 was performed in vivo using fluorescence imaging and MRI...
September 12, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28911882/aromatase-inhibitors-a-new-approach-for-controlling-ovarian-function-in-cattle
#12
M J Yapura, E M Zwiefelhofer, R A Pierson, G P Adams
Numerous treatments and protocols have been used to control the reproductive cycle in cattle, with varying effectiveness and many involving the administration of steroid hormones. Steroid hormones, such as estradiol, are perceived as having a negative impact on consumer health. This internationally shared opinion has led to a ban on the use of steroid hormones in food producing animals in many countries (i.e., European Union, New Zealand, and Australia). Letrozole, a non-steroidal aromatase inhibitor, inactivates the aromatase enzyme responsible for the synthesis of estrogens by reversibly binding to the "heme" group of the P450 subunit...
September 11, 2017: Theriogenology
https://www.readbyqxmd.com/read/28911307/tumor-targeting-of-polymeric-nanoparticles-conjugated-with-peptides-saccharides-and-small-molecules-for-anticancer-drugs
#13
Banu Bayram, Aykut Özgür, Lütfi Tutar, Yusuf Tutar
Targeting drugs or pharmaceutical compounds to tumor site increases cancer treatment efficiency and therapeutic outcome. Nanoparticles are unique delivery systems for site-targeting within an organism. Many novel technologies have been established in drug research and development area. Nanotechnology now offers nanometer size polymeric nanoparticles and these particles direct drugs to their targets, protect drugs against degradation, and release the drug in a controlled manner. Modification of nanoparticle surface by molecules leads to prolonged retention and accumulation in the target area of the organism...
June 7, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28911272/exploring-health-navigating-design-momentary-contentment-in-a-cancer-context
#14
Ulrika Sandén, Lars Harrysson, Hans Thulesius, Fredrik Nilsson
PURPOSE: The technocratic and medicalized model of healthcare is rarely optimal for patients. By connecting two different studies we explore the possibilities of increasing quality of life in cancer care. METHODS: The first study captures survival strategies in a historically isolated Arctic village in Norway resulting in Momentary contentment theory, which emerged from analysing four years of participant observation and interview data. The second study conceptualizes everyday life of cancer patients based on in-depth interviews with 19 cancer patients; this was conceptualized as Navigating a new life situation...
2017: International Journal of Qualitative Studies on Health and Well-being
https://www.readbyqxmd.com/read/28895435/intranasal-delivery-of-stem-cell-based-therapies-for-the-treatment-of-brain-malignancies
#15
Gina Li, Nicolas Bonamici, Mahua Dey, Maciej S Lesniak, Irina V Balyasnikova
Glioblastoma (GBM) is the most aggressive malignant brain cancer in adults, and its poor prognosis and resistance to the existing standard of care require the development of innovative therapeutic modalities. The local delivery of stem cells as therapeutic carriers against glioma has produced encouraging results, but encounters obstacles with regards to the repeatability and invasiveness of administration. Intranasal delivery of therapeutic stem cells could overcome these obstacles, among others, as a noninvasive and easily repeatable mode of administration...
September 12, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/28894763/adaptive-anatomical-preservation-optimal-denoising-for-radiation-therapy-daily-mri
#16
Rapeepan Maitree, Gloria J Guzman Perez-Carrillo, Joshua S Shimony, H Michael Gach, Anupama Chundury, Michael Roach, H Harold Li, Deshan Yang
Low-field magnetic resonance imaging (MRI) has recently been integrated with radiation therapy systems to provide image guidance for daily cancer radiation treatments. The main benefit of the low-field strength is minimal electron return effects. The main disadvantage of low-field strength is increased image noise compared to diagnostic MRIs conducted at 1.5 T or higher. The increased image noise affects both the discernibility of soft tissues and the accuracy of further image processing tasks for both clinical and research applications, such as tumor tracking, feature analysis, image segmentation, and image registration...
July 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/28893523/-therapeutic-innovations-in-urology-for-localized-prostate-cancer
#17
L Cormier, G Créhange
The management of localized prostate cancer has been marked over these last years by the importance of Active Surveillance for low risk forms. Indeed, the long follow-up and the quality of the results are now sufficient to offer this option even in relatively young people. However, the question is still under investigation concerning intermediate risk of prostate cancer. Patients' selection and follow-up management are of very high importance. Another major evolution is the robotic assistance for radical prostatectomy...
September 8, 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/28892296/tailored-approaches-in-drug-development-and-diagnostics-from-molecular-design-to-biological-model-systems
#18
REVIEW
Cecilia Sahlgren, Annika Meinander, Hongbo Zhang, Fang Cheng, Maren Preis, Chunlin Xu, Tiina A Salminen, Diana Toivola, Daniel Abankwa, Ari Rosling, Didem Şen Karaman, Outi M H Salo-Ahen, Ronald Österbacka, John E Eriksson, Stefan Willför, Ion Petre, Jouko Peltonen, Reko Leino, Mark Johnson, Jessica Rosenholm, Niklas Sandler
Approaches to increase the efficiency in developing drugs and diagnostics tools, including new drug delivery and diagnostic technologies, are needed for improved diagnosis and treatment of major diseases and health problems such as cancer, inflammatory diseases, chronic wounds, and antibiotic resistance. Development within several areas of research ranging from computational sciences, material sciences, bioengineering to biomedical sciences and bioimaging is needed to realize innovative drug development and diagnostic (DDD) approaches...
September 11, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28890087/-therapeutic-innovations-in-radiation-oncology-for-localized-prostate-cancer
#19
G Créhange, L Cormier
Intensity-modulated radiation therapy, image-guided radiation therapy with fiducial markers and prostate brachytherapy allow the delivery of dose escalation for localized prostate cancer with very low rates of long-term toxicity and sequelae. Nowadays, modern radiotherapy techniques make it possible to shorten treatment time with hypofractionation, to better protect surrounding healthy tissues and to escalate the dose even further. Advances in radiotherapy are closely linked to advances in magnetic resonance imaging (MRI) and/or PET imaging...
September 7, 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/28888556/telehealth-in-older-adults-with-cancer-in-the-united-states-the-emerging-use-of-wearable-sensors
#20
REVIEW
John Shen, Arash Naeim
As the aging and cancer populations in the world continue to increase, the need for complements to traditional geriatric assessments and the logical incorporation of fast and reliable telehealth tools have become interlinked. In the United States, studies examining the use of telehealth for chronic disease management have shown promising results in small groups. The implementation of health technology on a broader scale requires older adults to both accept and adapt such innovation into routine medical care...
September 6, 2017: Journal of Geriatric Oncology
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