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squamous cell skin cancer

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https://www.readbyqxmd.com/read/27906449/differential-mutation-frequencies-in-metastatic-cutaneous-squamous-cell-carcinomas-versus-primary-tumors
#1
Ayse Selen Yilmaz, Hatice Gulcin Ozer, Jessica L Gillespie, Dawn C Allain, Madison N Bernhardt, Karina Colossi Furlan, Leticia T F Castro, Sara B Peters, Priyadharsini Nagarajan, Stephen Y Kang, O Hans Iwenofu, Thomas Olencki, Theodoros N Teknos, Amanda Ewart Toland
BACKGROUND: Exome and targeted sequencing studies have identified potential driver mutations for a variety of tumor types. Cutaneous squamous cell carcinoma (cSCC) is one of the most highly mutated cancers but typically is associated with low rates of metastasis and high survival rates. Nevertheless, metastatic cSCC is a significant health threat; up to 8800 individuals die each year of this disease. METHODS: Because it is difficult to predict which cSCCs are more likely to metastasize, and because to the best of the authors' knowledge there are no targeted therapies specifically designated for patients with metastatic cSCC, exome and/or targeted sequencing of 18 metastatic and 10 primary cSCCs was performed to identify mutations that were more frequent in metastatic tumors and might be targeted for therapeutic benefit...
December 1, 2016: Cancer
https://www.readbyqxmd.com/read/27906042/what-is-the-impact-of-biologic-therapies-on-common-co-morbidities-in-patients-with-rheumatoid-arthritis
#2
REVIEW
Jenny Humphreys, Kimme Hyrich, Deborah Symmons
Biologic therapies have revolutionised disease control in patients with rheumatoid arthritis (RA). Theoretically, they have the potential to influence co-morbid disease associated with RA through better control of systemic inflammation. Conversely, co-morbidity may occur as an adverse effect of the drugs. The latest evidence from observational data shows an increased risk of infection in the first 6 months of treatment with tumour necrosis factor inhibitor (TNFi) therapies and potentially other biologic therapies...
December 1, 2016: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/27900035/differences-in-tumor-stroma-derived-from-irradiated-versus-non-irradiated-fibroblasts-in-a-co-culture-model-with-head-and-neck-squamous-cell-carcinoma
#3
Thomas Gehrke, Agmal Scherzad, Stephan Hackenberg, Philipp Schendzielorz, Rudolf Hagen, Norbert Kleinsasser
Cancer cells have a variety of interactions with neighboring connective tissue, and this activity primarily involves fibroblasts. Co-culture of fibroblasts derived from human skin with cancer cells results in the conversion of fibroblasts into cancer-associated fibroblasts, which are known to support tumor growth and invasiveness. To evaluate the effect of radiation on tumor-fibroblast interactions, the present study co-cultivated fibroblasts from pre-irradiated and non-irradiated human skin with FaDu head and neck squamous cell carcinoma cells for 3 days...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27900023/synchronous-papillary-urothelial-carcinoma-of-the-bladder-and-squamous-cell-carcinoma-with-sarcomatoid-differentiation-a-case-report
#4
Mahizer Yaldiz, Nur Cihan Cosansu, Berna Solak, Zeynep Kahyaoglu, Mustafa Teoman Erdem
The incidence rate of multiple primary tumors is 37% in all types of cancer. A patient diagnosed with primary cancer is 1.29 times more likely to develop an additional primary cancer when compared with the general population. Furthermore, in patients diagnosed with primary cancer, the possibility of a secondary malignancy in the same or different organ is increased. Following the identification of a secondary tumor, the risk of relapse or metastasis must be considered. The present study reports the case of a 76-year-old man who was admitted to Sakarya University Training and Research Hospital (Sakarya, Turkey) with swelling of the head, which had been apparent for 15 days...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27898109/body-mass-index-and-risk-of-non-melanoma-skin-cancer-cumulative-evidence-from-prospective-studies
#5
Daijun Zhou, Jun Wu, Gaoxing Luo
Prospective epidemiologic studies that investigated the association between body mass index (BMI) and non-melanoma skin cancer (NMSC) yielded inconsistent findings. A dose-response meta-analysis was conducted to quantitatively summarize the evidence. PubMed and Embase databases were searched for relevant studies. Study-specific relative risk (RR) and 95% confidence interval (CI) for an increase in BMI of 5 kg/m(2) was computed with the generalized least squares trend estimation, and these risk estimates were combined with the random-effects model...
November 29, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27896230/evaluation-of-symptoms-and-prevention-of-cancer-in-menopause-the-value-of-vulvar-exam
#6
A R Palumbo, C Fasolino, G Santoro, V Gargano, M Rinaldi, B Arduino, M Belli, M Guida
Vulvar and vaginal atrophy (VVA), is a chronic medical condition experienced by postmenopausal women, with prevalence estimated ranging from 10% to 50% [1]. VVA is characterized by a constellation of symptoms, that may affect daily activities, sexuality, relationships, and quality of life [3]. Early recognition and effective treatment of VVA may enhance sexual health and the quality of life of women and their partners. Some vulvar conditions such as lichen sclerosus are more prevalent in the postmenopausal years...
November 2016: Translational Medicine @ UniSa
https://www.readbyqxmd.com/read/27896185/the-relationship-between-the-size-and-the-invasion-depth-of-tumors-in-head-and-neck-cutaneous-squamous-cell-carcinoma
#7
Sam Yong Lee, Won Joo Hwang, Kyung Pil Kim, Hong Min Kim, Jae Ha Hwang, Kwang Seog Kim
BACKGROUND: Cutaneous squamous cell carcinoma (SCC), which occurs in keratinocytes of the epidermis and is the second most common skin cancer, has a more invasive growth pattern and higher potential to metastasize than basal cell carcinoma. Total excision of the primary tumor is the treatment of choice. For clear excision of the tumor, invasion depth is one of the most important factors. This study was conducted to clarify the relationship between the size and the invasion depth of cutaneous SCC...
November 2016: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/27892984/anatomical-distributions-of-basal-cell-carcinoma-and-squamous-cell-carcinoma-in-a-population-based-study-in-queensland-australia
#8
Padmini Subramaniam, Catherine M Olsen, Bridie S Thompson, David C Whiteman, Rachel E Neale
Importance: Keratinocyte cancers (KCs), including basal cell carcinoma (BCC) and squamous cell carcinoma (SCC), are the most common cancers among fair-skinned populations worldwide. Although studies have indicated that the anatomical distribution of BCC and SCC differ, few have compared them directly in well-defined population samples. Objectives: To describe and compare the anatomical distribution of BCC and SCC in a population-based sample in Queensland, Australia...
November 23, 2016: JAMA Dermatology
https://www.readbyqxmd.com/read/27891443/a-randomized-prospective-study-of-concurrent-chemo-radiotherapy-vs-accelerated-hyperfractionation-in-advanced-cancer-of-head-and-neck
#9
Himanshu Mishra, Ritusha Mishra, Uday Prataap Shahi, Abhijit Mandal
INTRODUCTION: Locally advanced unresectable squamous cell carcinoma of head and neck has poor locoregional control when treated with conventionally fractionated Radiation Therapy (RT) alone. However, Concurrent Chemo-Radiotherapy (CRT) and altered fractionated RT schedules like Accelerated Hyperfractionation (AHF) are two different treatment strategies that have shown to be associated with better efficacy as compared to conventional RT alone in such cases. AIM: Aim of the study was to compare these two treatment strategies i...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27889319/cell-type-specific-chromatin-states-differentially-prime-squamous-cell-carcinoma-tumor-initiating-cells-for-epithelial-to-mesenchymal-transition
#10
Mathilde Latil, Dany Nassar, Benjamin Beck, Soufiane Boumahdi, Li Wang, Audrey Brisebarre, Christine Dubois, Erwin Nkusi, Sandrine Lenglez, Agnieszka Checinska, Alizée Vercauteren Drubbel, Michael Devos, Wim Declercq, Rui Yi, Cédric Blanpain
Epithelial to mesenchymal transition (EMT) in cancer cells has been associated with metastasis, stemness, and resistance to therapy. Some tumors undergo EMT while others do not, which may reflect intrinsic properties of their cell of origin. However, this possibility is largely unexplored. By targeting the same oncogenic mutations to discrete skin compartments, we show that cell-type-specific chromatin and transcriptional states differentially prime tumors to EMT. Squamous cell carcinomas (SCCs) derived from interfollicular epidermis (IFE) are generally well differentiated, while hair follicle (HF) stem cell-derived SCCs frequently exhibit EMT, efficiently form secondary tumors, and possess increased metastatic potential...
November 16, 2016: Cell Stem Cell
https://www.readbyqxmd.com/read/27879972/responses-of-metastatic-basal-cell-and-cutaneous-squamous-cell-carcinomas-to-anti-pd1-monoclonal-antibody-regn2810
#11
Gerald S Falchook, Rom Leidner, Elizabeth Stankevich, Brian Piening, Carlo Bifulco, Israel Lowy, Matthew G Fury
BACKGROUND: Basal cell carcinoma (BCC) and cutaneous squamous cell carcinoma (CSCC) share exposure to UV light as the dominant risk factor, and these tumors therefore harbor high mutation burdens. In other malignancies, high mutation burden has been associated with clinical benefit from therapy with antibodies directed against the Programmed Death 1 (PD-1) immune checkpoint receptor. Highly mutated tumors are more likely to express immunogenic tumor neoantigens that attract effector T cells, which can be unleashed by blockade of the PD-1 immune checkpoint...
2016: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/27878063/retrospective-study-of-punch-scoring-versus-freehand-approach-for-first-stage-mohs-micrographic-surgery
#12
Nikoo Cheraghi, Abdulhadi Jfri, Robert Bacigalupi, Hooman Khorasani
Objective: The objective was to observe whether there is a difference in the number of subjects requiring more than one stage of Mohs micrographic surgery for small lesion nonmelanoma skin cancers using the punch scoring method versus freehand approach. Design: Retrospective review. Setting: Outpatient Mohs Clinic. Participants: Thirty patients with small lesion (<5mm) basal cell and squamous cell carcinoma who had Mohs micrographic surgery using either the punch scoring method (15) for scoring the first layer or the freehand method (15)...
September 2016: Journal of Clinical and Aesthetic Dermatology
https://www.readbyqxmd.com/read/27876545/submental-island-flap-reconstruction-in-oral-cavity-cancer-patients-with-level-i-lymph-node-metastasis
#13
P Sittitrai, C Srivanitchapoom, D Reunmakkaew, K Yata
The submental island flap is useful as an alternative to microvascular free tissue transfer for the reconstruction of defects after resection of oral cancer because it is simple to harvest, reliable, and is associated with good oral function and low morbidity. However, because cancer of the oral cavity carries a risk of level I nodal metastases, the oncological safety of the flap remains controversial. Between April 2012 and September 2016, we studied patients with squamous cell carcinoma of the oral cavity who underwent surgical resection with submental island flap reconstruction for viability of the flap, signs of recurrence, and complications...
November 19, 2016: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/27876303/rapid-visualization-of-nonmelanoma-skin-cancer
#14
Ethan Walker, Margaret Mann, Kord Honda, Allison Vidimos, Mark D Schluchter, Brian Straight, Matthew Bogyo, Daniel Popkin, James P Basilion
BACKGROUND: Mohs micrographic surgery examines all margins of the resected sample and has a 99% cure rate. However, many nonmelanoma skin cancers (NMSCs) are not readily amenable to Mohs micrographic surgery. This defines an unmet clinical need to assess the completeness of non-Mohs micrographic surgery resections during surgery to prevent re-excision/recurrence. OBJECTIVE: We sought to examine the utility of quenched activity-based probe imaging to discriminate cancerous versus normal-appearing skin tissue...
November 19, 2016: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/27876133/skin-phenotypes-can-offer-some-insight-about-the-association-between-telomere-length-and-cancer-susceptibility
#15
S Ribero, M Mangino, V Bataille
The role of telomere biology in cancer has been studied for a wide variety of different cancers but the association with telomere length has been controversial. This is because some cancers have been found to be associated with longer telomeres in circulating white cells whilst other cancer types are more common in individuals with shorter telomeres. Hence, there has been some skepticism as to whether telomere length may be helpful in estimating cancer risk. For melanoma, however, results have been fairly consistent showing that longer telomeres are associated with an increased risk...
December 2016: Medical Hypotheses
https://www.readbyqxmd.com/read/27875814/characterisation-of-prognosis-and-invasion-of-cutaneous-squamous-cell-carcinoma-by-podoplanin-and-e-cadherin-expression
#16
Kristina Hesse, Imke Satzger, Vivien Schacht, Brigitta Köther, Uwe Hillen, Joachim Klode, Katrin Schaper, Ralf Gutzmer
BACKGROUND: Around 5% of all cutaneous squamous cell carcinoma (cSCC) metastasise. Metastases usually locate in regional skin and lymph nodes, suggesting collective cancer invasion. The cellular level of tumour invasion and prognostic parameters remain to be characterised. METHODS: We performed immunohistochemical analyses of E-cadherin (marker for collective cancer invasion) and podoplanin (marker for epithelial-mesenchymal transition [EMT], single-cell invasion) expression in 102 samples of metastatic and non-metastatic cSCC and 18 corresponding skin and lymph node metastases to characterise the invasion of cSCC...
November 23, 2016: Dermatology: International Journal for Clinical and Investigative Dermatology
https://www.readbyqxmd.com/read/27875372/cutaneous-malignancies-in-hiv
#17
Aileen Y Chang, Phil Doiron, Toby Maurer
PURPOSE OF REVIEW: As patients with HIV infection are living longer with their disease, we have seen the evolution of skin cancer in this population. Cancer registries have not documented the incidence and prevalence of these cancers but we do have relevant data from cohorts. This article attempts to bring to light the extent to which skin cancer is an issue in HIV disease both domestically and internationally. RECENT FINDINGS: Squamous cell cancer is increasing in incidence in the United States and elsewhere...
January 2017: Current Opinion in HIV and AIDS
https://www.readbyqxmd.com/read/27869649/randomized-trial-of-calcipotriol-combined-with-5-fluorouracil-for-skin-cancer-precursor-immunotherapy
#18
Trevor J Cunningham, Mary Tabacchi, Jean-Pierre Eliane, Sara Moradi Tuchayi, Sindhu Manivasagam, Hengameh Mirzaalian, Ahu Turkoz, Raphael Kopan, Andras Schaffer, Arturo P Saavedra, Michael Wallendorf, Lynn A Cornelius, Shadmehr Demehri
BACKGROUND: Actinic keratosis is a precursor to cutaneous squamous cell carcinoma. Long treatment durations and severe side effects have limited the efficacy of current actinic keratosis treatments. Thymic stromal lymphopoietin (TSLP) is an epithelium-derived cytokine that induces a robust antitumor immunity in barrier-defective skin. Here, we investigated the efficacy of calcipotriol, a topical TSLP inducer, in combination with 5-fluorouracil (5-FU) as an immunotherapy for actinic keratosis...
November 21, 2016: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/27864996/skin-microtopography-as-a-measure-of-photoaging-and-risk-of-squamous-cell-carcinoma-of-the-skin-in-a-us-population
#19
L F Kuklinski, M S Zens, A E Perry, A C Green, M R Karagas
BACKGROUND: Skin microtopography as a measure of photoaging is a non-invasive approach to measuring chronic ultraviolet radiation (UVR) exposure, and reflects the degree of dermal elastosis in populations of European descent in the subtropics. Less is known about the utility of this approach in populations at different latitudes, and whether it relates to skin cancer risk. METHODS: A population-based case-control study of 342 SCC cases and 331 age- and gender-matched controls were evaluated for histologic evidence of solar damage and severity of photoaging based on microtopography on a six-grade scale...
November 19, 2016: Photodermatology, Photoimmunology & Photomedicine
https://www.readbyqxmd.com/read/27859308/resatorvid-based-pharmacological-antagonism-of-cutaneous-tlr4-blocks-uv-induced-nf-%C3%AE%C2%BAb-and-ap-1-signaling-in-keratinocytes-and-mouse-skin
#20
Jaroslav Janda, Nichole Burkett, Karen Blohm-Mangone, Vivian Huang, Clara Curiel-Lewandrowski, David S Alberts, Emanuel F Petricoin, Valerie S Calvert, Janine Einspahr, Zigang Dong, Ann M Bode, Georg T Wondrak, Sally E Dickinson
Cutaneous exposure to solar ultraviolet (UV) radiation is a major causative factor in skin carcinogenesis, and improved molecular strategies for efficacious chemoprevention of non-melanoma skin cancer (NMSC) are urgently needed. Toll-like receptor 4 (TLR4) signaling has been shown to drive skin inflammation, photoimmunosuppression and chemical carcinogenesis. Here we have examined the feasibility of genetic and pharmacological antagonism targeting cutaneous TLR4 for the suppression of UV-induced NF-κB and AP-1 signaling in keratinocytes and mouse skin...
November 10, 2016: Photochemistry and Photobiology
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