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https://www.readbyqxmd.com/read/29351263/twenty-nine-new-limonoids-with-skeletal-diversity-from-the-mangrove-plant-xylocarpus-moluccensis
#1
Jianzhi Zhang, Wanshan Li, Yiguo Dai, Li Shen, Jun Wu
Twenty-nine new limonoids-named xylomolins A₁-A₇, B₁-B₂, C₁-C₂, D-F, G₁-G₅, H-I, J₁-J₂, K₁-K₂, L₁-L₂, and M-N, were isolated from the seeds of the mangrove plant, Xylocarpus moluccensis. Compounds 1-13 are mexicanolides with one double bond or two conjugated double bonds, while 14 belongs to a small group of mexicanolides with an oxygen bridge between C1 and C8. Compounds 15-19 are khayanolides containing a Δ8,14 double bond, whereas 20 and 21 are rare khayanolides containing a Δ14,15 double bond and Δ8,9, Δ14,15 conjugated double bonds, respectively...
January 19, 2018: Marine Drugs
https://www.readbyqxmd.com/read/29351206/antibody-biomimetic-material-made-of-pyrrole-for-ca-15-3-and-its-application-as-sensing-material-in-ion-selective-electrodes-for-potentiometric-detection
#2
Alexandra R T Santos, Felismina T C Moreira, Luísa A Helguero, M Goreti F Sales
This work reports a very simple approach for creating a synthetic antibody against any protein of interest and its application in potentiometric transduction. The selected protein was Breast Cancer Antigen (CA 15-3), which is implicated in breast cancer disease and used to follow-up breast cancer patients during treatment. The new material with antibody-like properties was obtained by molecular-imprinting technology, prepared by electropolymerizing pyrrol (Py, 5.0 × 10-3 mol/L) around Breast Cancer Antigen (CA 15-3) (100 U/mL) on a fluorine doped tin oxide (FTO) conductive glass support...
January 19, 2018: Biosensors
https://www.readbyqxmd.com/read/29349050/a-comparison-of-the-local-flap-and-skin-graft-by-location-of-face-in-reconstruction-after-resection-of-facial-skin-cancer
#3
Kyung Suk Lee, Jun Oh Kim, Nam Gyun Kim, Yoon Jung Lee, Young Ji Park, Jun Sik Kim
Background: Surgery for reconstruction of defects after surgery should be performed selectively and the many points must be considered. The authors conducted this study to compare the local flap and skin graft by facial location in the reconstruction after resection of facial skin cancer. Methods: The authors performed the study in patients that had received treatment in Department of Plastic Surgery, Gyeongsang National University. The cases were analyzed according to the reconstruction methods for the defects after surgery, sex, age, tumor site, and tumor size...
December 2017: Archives of Craniofacial Surgery
https://www.readbyqxmd.com/read/29346028/biophysics-model-of-heavy-ion-degradation-of-neuron-morphology-in-mouse-hippocampal-granular-cell-layer-neurons
#4
Murat Alp, Francis A Cucinotta
Exposure to heavy-ion radiation during cancer treatment or space travel may cause cognitive detriments that have been associated with changes in neuron morphology and plasticity. Observations in mice of reduced neuronal dendritic complexity have revealed a dependence on radiation quality and absorbed dose, suggesting that microscopic energy deposition plays an important role. In this work we used morphological data for mouse dentate granular cell layer (GCL) neurons and a stochastic model of particle track structure and microscopic energy deposition (ED) to develop a predictive model of high-charge and energy (HZE) particle-induced morphological changes to the complex structures of dendritic arbors...
January 18, 2018: Radiation Research
https://www.readbyqxmd.com/read/29345363/effects-of-il-10-and-th-2-cytokines-on-human-m%C3%AF-phenotype-and-response-to-csf1r-inhibitor
#5
Leon P Pradel, Andreas Franke, Carola H Ries
Tumor-associated Mφs display a plastic phenotype that is regulated by the local tumor milieu. Gene expression analysis and functional characterization of Mφs exposed in vitro to individual cytokines aids to delineate the cross-talk between defined cytokines shaping the complex Mφ phenotype. Human monocyte-derived Mφs can be differentiated in vitro with the T helper cell type 2 response cytokines IL-4 and IL-13 or the immunosuppressive IL-10. Notably, only the latter subset undergoes apoptosis when treated with the CSF 1 receptor (CSF1R) blocking antibody emactuzumab...
January 4, 2018: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/29345348/roles-of-neutrophils-in-cancer-growth-and-progression
#6
REVIEW
Maria Rosaria Galdiero, Gilda Varricchi, Stefania Loffredo, Alberto Mantovani, Gianni Marone
Chronic inflammation is a well-known tumor-enabling capacity, which allows nascent tumors to acquire all the hallmark capabilities, including the escape from immunosurveillance. Soluble and cellular inflammatory mediators constitute the complex network of the tumor microenvironment, in which tumors grow and with which constantly interact. Myeloid cells (e.g., tumor associated macrophages) are pivotal players of the tumor microenvironment and are characterized by plasticity, which consists of the ability to acquire distinct phenotypes in response to the microenvironment in which they reside...
December 15, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/29337961/how-the-evolution-of-multicellularity-set-the-stage-for-cancer
#7
REVIEW
Anna S Trigos, Richard B Pearson, Anthony T Papenfuss, David L Goode
Neoplastic growth and many of the hallmark properties of cancer are driven by the disruption of molecular networks established during the emergence of multicellularity. Regulatory pathways and molecules that evolved to impose regulatory constraints upon networks established in earlier unicellular organisms enabled greater communication and coordination between the diverse cell types required for multicellularity, but also created liabilities in the form of points of vulnerability in the network that when mutated or dysregulated facilitate the development of cancer...
January 16, 2018: British Journal of Cancer
https://www.readbyqxmd.com/read/29337896/caffeic-acid-and-metformin-inhibit-invasive-phenotype-induced-by-tgf-%C3%AE-1-in-c-4i-and-htb-35-siha-human-cervical-squamous-carcinoma-cells-by-acting-on-different-molecular-targets
#8
Malgorzata Tyszka-Czochara, Malgorzata Lasota, Marcin Majka
During the progression of epithelial cancer, the cells may lose epithelial markers and gain mesenchymal phenotype via Epithelial-Mesenchymal Transition (EMT). Such transformation of epithelial cancer cells to mesenchymal-like characteristic benefits plasticity and supports their ability to migrate. The aim of this study was to evaluate the influence of natural compound Caffeic Acid (CA) alone and in combination with antidiabetic drug Metformin (Met) on metastatic progression of two human cervical squamous cell cancer lines, C-4I and HTB-35/SiHa cells...
January 16, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29337038/back-to-the-future-epigenetic-clock-plasticity-towards-healthy-aging
#9
REVIEW
Ken Declerck, Wim Vanden Berghe
Aging is the most important risk factor for major human lifestyle diseases, including cancer, neurological and cardiometabolic disorders. Due to the complex interplay between genetics, lifestyle and environmental factors, some individuals seem to age faster than others, whereas centenarians seem to have a slower aging process. Therefore, a biochemical biomarker reflecting the relative biological age would be helpful to predict an individual's health status and aging disease risk. Although it is already known for years that cumulative epigenetic changes occur upon aging, DNA methylation patterns were only recently used to construct an epigenetic clock predictor for biological age, which is a measure of how well your body functions compared to your chronological age...
January 11, 2018: Mechanisms of Ageing and Development
https://www.readbyqxmd.com/read/29335394/landscape-of-oncoplastic-breast-surgery-across-poland
#10
Agnieszka Kolacinska, Diana Hodorowicz-Zaniewska, Artur Bocian, Dariusz Michalik, Rafal Matkowski, Andrzej Kurylcio, Pawel Pyka, Michal Charytonowicz, Maciej Berkan
Oncoplastic and reconstructive techniques are essential tools in the armamentarium of contemporary breast surgeons. The aim of the study was to identify oncoplastic reconstructive patterns in breast cancer centers across Poland. A questionnaire of 18 questions was sent by email to the members of the Polish Society of Surgical Oncology and the Polish Society of Plastic, Reconstructive and Esthetic Surgery via their dedicated websites. The numbers of breast cancer patients operated on in each center ranged from 120 to 904 per year...
December 30, 2017: Polski Przeglad Chirurgiczny
https://www.readbyqxmd.com/read/29330773/mechanistic-regulation-of-epithelial-to-mesenchymal-transition-through-ras-signaling-pathway-and-therapeutic-implications-in-human-cancer
#11
REVIEW
Kiran Tripathi, Minal Garg
RAS effector signaling instead of being simple, unidirectional and linear cascade, is actually recognized as highly complex and dynamic signaling network. RAF-MEK-ERK cascade, being at the center of complex signaling network, links to multiple scaffold proteins through feed forward and feedback mechanisms and dynamically regulate tumor initiation and progression. Three isoforms of Ras harbor mutations in a cell and tissue specific manner. Besides mutations, their epigenetic silencing also attributes them to exhibit oncogenic activities...
January 12, 2018: Journal of Cell Communication and Signaling
https://www.readbyqxmd.com/read/29330268/pelvic-and-buttock-hypoplasia-reconstructed-with-anatomical-breast-implants
#12
Felicity Page, Ayad Harb, Garth Titley
Radiation therapy is used in the management of a number of childhood cancers and can have significant effects on skeletal growth. We present the case of a 35-year-old woman who developed a hypoplastic pelvis and buttocks following radiotherapy for rhabdomyosarcoma of the vagina at the age of 2. At the age of 25, the patient underwent bilateral buttock augmentation with a two-stage reconstruction using tissue expansion followed by definitive augmentation with anatomical breast implant insertion. The patient continues to have a satisfactory outcome 10 years following reconstruction, having undergone a single uplift procedure and exchange of implants through the original incision 9 years postoperatively...
January 12, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29328534/split-thickness-skin-grafting-for-reconstruction-of-auricular-skin-defects-a-statistical-analysis
#13
Tobias Thuile, Lorenz Larcher, Barbara Gatscher, Karl Schwaiger, Jenny Deluca, Amgiad Fallaha, Lukas Tappeiner, Mario Puviani, Klaus Eisendle
BACKGROUND AND OBJECTIVES: Surgical reconstruction following the removal of large malignant auricular lesions is challenging. While many options for defect closure have been described, in the elderly population usually affected flap surgery, long anesthesia times, patient compliance, and anticoagulant therapy pose additional risks. An alternative quick, simple, and effective method of defect closure is therefore highly desirable. The objective of the present study was to assess the aesthetic outcome, healing process, complications, and recurrence rates associated with unmeshed split-thickness skin grafts (STSGs) used for covering large auricular skin defects following cartilage-sparing skin cancer removal...
January 12, 2018: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/29326438/conditional-knockout-of-n-myc-and-stat-interactor-disrupts-normal-mammary-development-and-enhances-metastatic-ability-of-mammary-tumors
#14
Hawley C Pruitt, Brandon J Metge, Shannon E Weeks, Dongquan Chen, Shi Wei, Robert A Kesterson, Lalita A Shevde, Rajeev S Samant
The process of organ development requires a delicate balance between cellular plasticity and differentiation. This balance is disrupted in cancer initiation and progression. N-Myc and STAT interactor (NMI: human or Nmi: murine) has emerged as a relevant player in the etiology of breast cancer. However, a fundamental understanding of its relevance to normal mammary biology is lacking. To gain insight into its normal function in mammary gland, we generated a mammary-specific Nmi knockout mouse model. We observed that Nmi protein expression is induced in mammary epithelium at the onset of pregnancy, in luminal cells and persists throughout lactation...
January 12, 2018: Oncogene
https://www.readbyqxmd.com/read/29325808/dutch-breast-reconstruction-guideline
#15
REVIEW
Marc A M Mureau
Treatment of breast cancer is complex and multidisciplinary by nature, with protocols that are updated continuously. During preoperative multidisciplinary team meetings, regularly there is discussion between team members regarding optimal timing and type of breast reconstruction, due to conflicting interests of oncological and reconstructive treatments. Therefore, a multidisciplinary, evidence-based guideline for breast reconstruction in women undergoing breast conserving therapy or mastectomy for breast cancer, or following prophylactic mastectomy was developed by a multidisciplinary working group...
December 27, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/29324933/brachytherapy-in-soft-tissue-tumours-an-interdisciplinary-challenge
#16
Silvanie Volz, Konstantinos Kalousis, Jung In Song, Tobias Kisch, Eike Wenzel, Peter Mailänder
OBJECTIVE: Interdisciplinary work including surgery and additive radiotherapy is often needed for the therapy of tumours. Beneath this, brachytherapy is an important part of the radiotherapy. It was first used over 100 years ago and is in regular use after the development of afterload technology in the early 1970s. Today it is often used in different tumour therapies, for example in soft tissue sarcoma or breast tumours, in order to decrease the risk of local recurrence. Concerning its benefits, higher doses could be used because of the localized effect with equivalent local control rate and less toxicity of treatment...
September 2017: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/29323728/3d-reconstruction-of-prostate-cancer-architecture-with-serial-immunohistochemical-sections-hallmarks-of-tumour-growth-tumour-compartmentalization-and-implications-for-grading-and-heterogeneity
#17
Yuri Tolkach, Stefan Thomann, Glen Kristiansen
BACKGROUND: Conventional morphology of the prostate cancer (PCA) considers only two-dimensional architecture of the tumour. Our aim was to examine the feasibility of 3D-reconstruction of tumour morphology based on multiple consecutive histological sections and to decipher relevant features of PCA architecture. METHODS: Seventy-five consecutive histological sections (5μm) of a typical prostate adenocarcinoma (Gleason-Score 3+4=7) were immunostained (Pan-Cytokeratin) and scanned for further 3D reconstructions with Fiji / ImageJ software...
January 11, 2018: Histopathology
https://www.readbyqxmd.com/read/29320425/targeting-pancreatic-cancer-cell-plasticity-the-latest-in-therapeutics
#18
REVIEW
Jacob M Smigiel, Neetha Parameswaran, Mark W Jackson
Mortality remains alarmingly high for patients diagnosed with pancreatic ductal adenocarcinoma (PDAC), with 93% succumbing to the disease within five years. The vast majority of PDAC cases are driven by activating mutations in the proto-oncogene KRAS, which results in constitutive proliferation and survival signaling. As efforts to target RAS and its downstream effectors continue, parallel research aimed at identifying novel targets is also needed in order to improve therapeutic options and efficacy. Recent studies demonstrate that self-renewing cancer stem cells (CSCs) contribute to metastatic dissemination and therapy failure, the causes of mortality from PDAC...
January 10, 2018: Cancers
https://www.readbyqxmd.com/read/29317347/using-virtual-reality-to-control-preoperative-anxiety-in-ambulatory-surgery-patients-a-pilot-study-in-maxillofacial-and-plastic-surgery
#19
L Ganry, B Hersant, M SidAhmed-Mezi, G Dhonneur, J P Meningaud
INTRODUCTION: Preoperative anxiety may lead to medical and surgical complications, behavioral problems and emotional distress. The most common means of prevention are based on using medication and, more recently, hypnosis. The aim of our study was to determine whether a virtual reality (VR) program presenting natural scenes could be part of a new therapy to reduce patients' preoperative anxiety. MATERIALS AND METHODS: Our prospective pilot study consisted of a single-blind trial in skin cancer surgery at the Henri Mondor Teaching Hospital in France...
January 6, 2018: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29316250/dual-inhibition-of-wnt-and-yes-associated-protein-signaling-retards-the-growth-of-triple-negative-breast-cancer-in-both-mesenchymal-and-epithelial-states
#20
Andrew Sulaiman, Sarah McGarry, Li Li, Deyong Jia, Sarah Ooi, Christina Addison, Jim Dimitroulakos, Angel Arnaout, Carolyn Nessim, Zemin Yao, Guang Ji, Haiyan Song, Suresh Gadde, Xuguang Li, Lisheng Wang
Triple negative breast cancer (TNBC), the most refractory subtype of breast cancer to current treatments, accounts disproportionately for the majority of breast cancer related deaths. This is largely due to cancer plasticity and the development of cancer stem cells (CSCs). Recently, distinct yet interconvertible mesenchymal-like and epithelial-like states have been revealed in breast CSCs. Thus, strategies capable of simultaneously inhibiting bulk and CSC populations in both mesenchymal and epithelial states have yet to be developed...
January 9, 2018: Molecular Oncology
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