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Frontiers in Oncology

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https://www.readbyqxmd.com/read/29780748/cell-adhesion-and-matrix-stiffness-coordinating-cancer-cell-invasion-and-metastasis
#1
REVIEW
Vasiliki Gkretsi, Triantafyllos Stylianopoulos
Metastasis is a multistep process in which tumor extracellular matrix (ECM) and cancer cell cytoskeleton interactions are pivotal. ECM is connected, through integrins, to the cell's adhesome at cell-ECM adhesion sites and through them to the actin cytoskeleton and various downstream signaling pathways that enable the cell to respond to external stimuli in a coordinated manner. Cues from cell-adhesion proteins are fundamental for defining the invasive potential of cancer cells, and many of these proteins have been proposed as potent targets for inhibiting cancer cell invasion and thus, metastasis...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29780747/precision-medicine-in-hormone-receptor-positive-breast-cancer
#2
REVIEW
Azadeh Nasrazadani, Roby A Thomas, Steffi Oesterreich, Adrian V Lee
In recent decades, breast cancer has become largely manageable due to successes with hormone receptor targeting. Hormone receptor-positive tumors have favorable outcomes in comparison to estrogen receptor (ESR1, ER)/progesterone receptor-negative tumors given the targetable nature of these tumors, as well as their inherently less aggressive character. Nonetheless, treatment resistance is frequently encountered due to a variety of mechanisms, including ESR1 mutations and loss of ER expression. A new era of precision medicine utilizes a range of methodologies to allow real-time analysis of individual genomic signatures in metastases and liquid biopsies with the goal of finding clinically actionable targets...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29774202/loss-of-the-cyclin-dependent-kinase-inhibitor-1-in-the-context-of-brachyury-mediated-phenotypic-plasticity-drives-tumor-resistance-to-immune-attack
#3
Duane H Hamilton, Kristen K McCampbell, Claudia Palena
The acquisition of mesenchymal features by carcinoma cells is now recognized as a driver of metastasis and tumor resistance to a range of anticancer therapeutics, including chemotherapy, radiation, and certain small-molecule targeted therapies. With the recent successful implementation of immunotherapies for the treatment of various types of cancer, there is growing interest in understanding whether an immunological approach could be effective at eradicating carcinoma cells bearing mesenchymal features. Recent studies, however, demonstrated that carcinoma cells that have acquired mesenchymal features may also exhibit decreased susceptibility to lysis mediated by immune effector cells, including antigen-specific CD8+ T cells, innate natural killer (NK), and lymphokine-activated killer (LAK) cells...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29774201/investigation-of-experimental-factors-that-underlie-brca1-2-mrna-isoform-expression-variation-recommendations-for-utilizing-targeted-rna-sequencing-to-evaluate-potential-spliceogenic-variants
#4
Vanessa L Lattimore, John F Pearson, Margaret J Currie, Amanda B Spurdle, Bridget A Robinson, Logan C Walker
PCR-based RNA splicing assays are commonly used in diagnostic and research settings to assess the potential effects of variants of uncertain clinical significance in BRCA1 and BRCA2 . The Evidence-based Network for the Interpretation of Germline Mutant Alleles (ENIGMA) consortium completed a multicentre investigation to evaluate differences in assay design and the integrity of published data, raising a number of methodological questions associated with cell culture conditions and PCR-based protocols. We utilized targeted RNA-seq to re-assess BRCA1 and BRCA2 mRNA isoform expression patterns in lymphoblastoid cell lines (LCLs) previously used in the multicentre ENIGMA study...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29765907/attenuated-bacteria-as-immunotherapeutic-tools-for-cancer-treatment
#5
Suneesh Kaimala, Ashraf Al-Sbiei, Otavio Cabral-Marques, Maria J Fernandez-Cabezudo, Basel K Al-Ramadi
The use of attenuated bacteria as cancer therapeutic tools has garnered increasing scientific interest over the past 10 years. This is largely due to the development of bacterial strains that maintain good anti-tumor efficacy, but with reduced potential to cause toxicities to the host. Because of its ability to replicate in viable as well as necrotic tissue, cancer therapy using attenuated strains of facultative anaerobic bacteria, such as Salmonella , has several advantages over standard treatment modalities, including chemotherapy and radiotherapy...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29765906/epstein-barr-virus-and-human-papillomaviruses-interactions-and-their-roles-in-the-initiation-of-epithelial-mesenchymal-transition-and-cancer-progression
#6
REVIEW
Farhan S Cyprian, Halema F Al-Farsi, Semir Vranic, Saghir Akhtar, Ala-Eddin Al Moustafa
Oncoviruses are implicated in around 20% of all human cancers including both solid and non-solid malignancies. Epstein-Barr virus (EBV) and human papillomaviruses (HPVs) are the most common oncoviruses worldwide. Currently, it is well established that onco-proteins of EBV (LMP1, LMP2A, and EBNA1) and high-risk HPVs (E5 and E6/E7) play an important role in the initiation and/or progression of several human carcinomas, including cervical, oral, and breast. More significantly, it has been recently pointed out that viral onco-proteins of EBV and high-risk HPVs can be co-present and consequently cooperate to initiate and/or amplify epithelial-mesenchymal transition (EMT), which is the hallmark of cancer progression and metastasis...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29761078/novel-immunotherapy-options-for-extranodal-nk-t-cell-lymphoma
#7
REVIEW
Boyu Hu, Yasuhiro Oki
Extranodal NK/T-cell lymphoma (ENKTCL) is a highly aggressive mature NK/T-cell neoplasm marked by NK-cell phenotypic expression of CD3ε and CD56. While the disease is reported worldwide, there is a significant geographic variation with its highest incidence in East Asian countries possibly related to the frequent early childhood exposure of Epstein-Barr virus (EBV) and specific ethnic-genetical background, which contributes to the tumorigenesis. Historically, anthracycline-based chemotherapy such as CHOP (cyclophosphamide, adriamycin, vincristine, and prednisone) was used, but resulted in poor outcomes...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29761077/anatomical-cadaver-study-of-endolaryngeal-vascularization-focus-on-the-glottis-supraglottis-and-subglottis-from-the-transoral-microsurgical-point-of-view
#8
Pietro Perotti, Marco Ferrari, Nausica Montalto, Davide Lancini, Alberto Paderno, Fabiola Incandela, Barbara Buffoli, Luigi Fabrizio Rodella, Cesare Piazza
Introduction: Carbon dioxide laser coagulation during transoral laser microsurgery (TLM) for laryngeal cancer allows control of bleeding from vessels smaller than 0.5 mm. Therefore, larger arteries and veins must be carefully managed by clipping and/or monopolar cautery. The aim of this paper is to detail endolaryngeal vascular anatomy and identify areas of possible bleeding during TLM. Methods: We performed an anatomical study on a series of 11 fresh-frozen human cadavers...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29761076/synchronous-bone-metastasis-from-multiple-myeloma-and-prostate-adenocarcinoma-as-initial-presentation-of-coexistent-malignancies
#9
Diego Andres Adrianzen Herrera, Shlomit Goldberg-Stein, Alexander Sankin, Judy Sarungbam, Janaki Sharma, Benjamin A Gartrell
The radiographic appearance of bone metastases is usually determined by tumor histology and can be osteolytic, osteoblastic, or mixed. We present a patient with coexistent bone metastasis from multiple myeloma and prostate adenocarcinoma who exhibited synchronous bone involvement of both histologies within the same bone lesion, a rare phenomenon that has not been previously reported and led to atypical radiographic findings. The radiograph of a 71-year-old man with thigh swelling and pain demonstrated a lytic femoral lesion...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29761075/transforming-growth-factor-%C3%AE-signaling-plays-a-pivotal-role-in-the-interplay-between-osteosarcoma-cells-and-their-microenvironment
#10
REVIEW
Franck Verrecchia, Françoise Rédini
Osteosarcomas are the most frequent form of primary bone tumors and mainly affect children, adolescents, and young adults. Despite encouraging progress in therapeutic management, including the advent of multidrug chemotherapy, the survival rates have remained unchanged for more than four decades: 75% at 5 years for localized disease, but two groups of patients are still at high risk: metastatic at diagnosis (overall survival around 40% at 5 years) and/or poor responders to chemotherapy (20% at 5 years)...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29761074/the-clinical-utility-of-cell-free-dna-measurement-in-differentiated-thyroid-cancer-a-systematic-review
#11
Jonathan M Fussey, Jennifer L Bryant, Nikolaos Batis, Rachael J Spruce, Andrew Hartley, James S Good, Christopher J McCabe, Kristien Boelaert, Neil Sharma, Hisham Mehanna
Background: Cell-free DNA (cfDNA) can be detected in the circulation of healthy individuals, but is found in higher concentrations in cancer patients. Furthermore, mutations in tumor cells can be identified in circulating DNA fragments. This has been the subject of significant interest in the field of cancer research, but little has been published in thyroid cancer. Objectives: To assess all available evidence on the use of circulating cfDNA in the diagnosis, management and surveillance of patients with differentiated thyroid cancer, and collate it into a systematic review to guide future research...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29761073/radiation-oncology-in-the-21st-century-prospective-randomized-trials-that-changed-practice%C3%A2-or-didn-t
#12
REVIEW
Kaveh Zakeri, C Norman Coleman, Bhadrasain Vikram
In a two-part article published in 2009, we discussed the limitations of conventional radiation therapy, the challenges of studying new technologies in radiation oncology, and summarized the state-of-the science for various malignancies (1, 2). Here, we summarize some of the most important prospective, randomized trials that during the intervening years have attempted to improve the tumor control and/or decrease the adverse effects of radiation therapy. For consistency, we have focused here on the null and alternate hypotheses as articulated by the investigators at the onset of each trial, since the outcome of the investigational treatment should be considered clinically significant only if the null hypothesis was rejected...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29755956/preleukemia-and-leukemia-initiating-cell-activity-in-inv-16-acute-myeloid-leukemia
#13
REVIEW
John Anto Pulikkan, Lucio Hernán Castilla
Acute myeloid leukemia (AML) is a collection of hematologic malignancies with specific driver mutations that direct the pathology of the disease. The understanding of the origin and function of these mutations at early stages of transformation is critical to understand the etiology of the disease and for the design of effective therapies. The chromosome inversion inv(16) is thought to arise as a founding mutation in a hematopoietic stem cell (HSC) to produce preleukemic HSCs (preL-HSCs) with myeloid bias and differentiation block, and predisposed to AML...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29755955/editorial-immunotherapy-for-tumor-in-the-brain-insights-from-and-for-other-tumor-sites
#14
EDITORIAL
Lois A Lampson
No abstract text is available yet for this article.
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29755954/immune-response-generated-with-the-administration-of-autologous-dendritic-cells-pulsed-with-an-allogenic-tumoral-cell-lines-lysate-in-patients-with-newly-diagnosed-diffuse-intrinsic-pontine-glioma
#15
Daniel Benitez-Ribas, Raquel Cabezón, Georgina Flórez-Grau, Mari Carmen Molero, Patricia Puerta, Antonio Guillen, Sonia Paco, Angel M Carcaboso, Vicente Santa-Maria Lopez, Ofelia Cruz, Carmen de Torres, Noelia Salvador, Manel Juan, Jaume Mora, Andres Morales La Madrid
Background and objective: Diffuse intrinsic pontine glioma (DIPG) is a lethal brainstem tumor in children. Dendritic cells (DCs) have T-cell stimulatory capacity and, therefore, potential antitumor activity for disease control. DCs vaccines have been shown to reactivate tumor-specific T cells in both clinical and preclinical settings. We designed a phase Ib immunotherapy (IT) clinical trial with the use of autologous dendritic cells (ADCs) pulsed with an allogeneic tumors cell-lines lysate in patients with newly diagnosed DIPG after irradiation (radiation therapy)...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29755953/first-line-treatment-in-egfr-mutant-non-small-cell-lung-cancer-is-there-a-best-option
#16
REVIEW
Ajaz Bulbul, Hatim Husain
First generation or second generation EGFR tyrosine kinase inhibitors are currently the standard of care for the first-line management of non-small cell lung cancer (NSCLC) patients with activating mutations within the kinase domain of the epidermal growth factor receptor gene (1, 2). Resistance to targeted therapy can develop after 9-11 months (3-8). Third generation inhibitors were developed to target the EGFR T790M clone, which is the most common dominant second site resistance mutation after first or second generation inhibitors...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29740540/signaling-pathways-regulating-redox-balance-in-cancer-metabolism
#17
REVIEW
Maria Chiara De Santis, Paolo Ettore Porporato, Miriam Martini, Andrea Morandi
The interplay between rewiring tumor metabolism and oncogenic driver mutations is only beginning to be appreciated. Metabolic deregulation has been described for decades as a bystander effect of genomic aberrations. However, for the biology of malignant cells, metabolic reprogramming is essential to tackle a harsh environment, including nutrient deprivation, reactive oxygen species production, and oxygen withdrawal. Besides the well-investigated glycolytic metabolism, it is emerging that several other metabolic fluxes are relevant for tumorigenesis in supporting redox balance, most notably pentose phosphate pathway, folate, and mitochondrial metabolism...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29740539/beyond-the-biomarker-understanding-the-diverse-roles-of-human-epididymis-protein-4-in-the-pathogenesis-of-epithelial-ovarian-cancer
#18
REVIEW
Nicole E James, Clinton Chichester, Jennifer R Ribeiro
Human epididymis protein 4 (HE4) is an important clinical biomarker used for the detection of epithelial ovarian cancer (EOC). While much is known about the predictive power of HE4 clinically, less has been reported regarding its molecular role in the progression of EOC. A deeper understanding of HE4's mechanistic functions may help contribute to the development of novel targeted therapies. Thus far, it has been difficult to recommend HE4 as a therapeutic target owing to the fact that its role in the progression of EOC has not been extensively evaluated...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29740538/novel-mitochondria-targeted-furocoumarin-derivatives-as-possible-anti-cancer-agents
#19
Andrea Mattarei, Matteo Romio, Antonella Managò, Mario Zoratti, Cristina Paradisi, Ildikò Szabò, Luigi Leanza, Lucia Biasutto
Targeting small molecules to appropriate subcellular compartments is a way to increase their selectivity and effectiveness while minimizing side effects. This can be accomplished either by stably incorporating specific "homing" properties into the structure of the active principle, or by attaching to it a targeting moiety via a labile linker, i.e., by producing a "targeting pro-drug." Mitochondria are a recognized therapeutic target in oncology, and blocking the population of the potassium channel Kv1...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29740537/l-lactate-transport-and-metabolism-in-mitochondria-of-hep-g2-cells-the-cori-cycle-revisited
#20
Salvatore Passarella, Avital Schurr
No abstract text is available yet for this article.
2018: Frontiers in Oncology
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