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Basal cell carcinoma, Squamous cell carcinoma

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https://www.readbyqxmd.com/read/28433834/antimicrobial-and-anticancer-photodynamic-activity-of-a-phthalocyanine-photosensitizer-with-n-methyl-morpholiniumethoxy-substituents-in-non-peripheral-positions
#1
Jolanta Dlugaszewska, Wojciech Szczolko, Tomasz Koczorowski, Paulina Skupin-Mrugalska, Anna Teubert, Krystyna Konopka, Malgorzata Kucinska, Marek Murias, Nejat Düzgüneş, Jadwiga Mielcarek, Tomasz Goslinski
Photodynamic therapy involves the use of a photosensitizer that is irradiated with visible light in the presence of oxygen, resulting in the formation of reactive oxygen species. A novel phthalocyanine derivative, the quaternary iodide salt of magnesium(II) phthalocyanine with N-methyl morpholiniumethoxy substituents, was synthesized, and characterized. The techniques used included mass spectrometry (MALDI TOF), UV-vis, NMR spectroscopy, and photocytotoxicity against bacteria, fungi and cancer cells. The phthalocyanine derivative possessed typical characteristics of compounds of the phthalocyanine family but the effect of quaternization was observed on the optical properties, especially in terms of absorption efficiency...
April 8, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28430799/diagnostic-and-prognostic-value-of-long-noncoding-rnas-as-biomarkers-in-urothelial-carcinoma
#2
Johanna Droop, Tibor Szarvas, Wolfgang A Schulz, Christian Niedworok, Günter Niegisch, Kathrin Scheckenbach, Michèle J Hoffmann
Many long noncoding RNAs (lncRNAs) are deregulated in cancer and contribute to oncogenesis. In urothelial carcinoma (UC), several lncRNAs have been reported to be overexpressed and proposed as biomarkers. As most reports have not been confirmed independently in large tissue sets, we aimed to validate the diagnostic and prognostic value of lncRNA upregulation in independent cohorts of UC patients. Thus, expression of seven lncRNA candidates (GAS5, H19, linc-UBC1, MALAT1, ncRAN, TUG1, UCA1) was measured by RT-qPCR in cell lines and tissues and correlated to clinicopathological parameters including follow-up data (set 1: N n = 10; T n = 106)...
2017: PloS One
https://www.readbyqxmd.com/read/28414587/non-melanoma-skin-cancer-new-and-future-synthetic-drug-treatments
#3
Teresa Amaral, Claus Garbe
Non-melanoma skin cancers (NMSC) mainly comprise two different entities: basal cell carcinoma (BCC) and squamous cell carcinoma (SCC); beneath these two entities, Merkel cell carcinoma, adnexal tumors, dermatofibrosarcoma protuberans, angiosarcoma, and cutaneous lymphoma belong to NMSC. These rare skin tumors are not the topic of this review. BCC and SCC are the most common cancers diagnosed in humans. The preferred treatment is surgery, which in most cases is curative. Although a high recurrence rate is seen, these cancers rarely metastasize...
April 17, 2017: Expert Opinion on Pharmacotherapy
https://www.readbyqxmd.com/read/28414022/cigarette-smoking-and-the-risks-of-basal-cell-carcinoma-and-squamous-cell-carcinoma
#4
J C Dusingize, C M Olsen, N P Pandeya, P Subramaniam, B S Thompson, R E Neale, A C Green, D C Whiteman
Sunlight is the principal environmental risk factor for keratinocyte cancers, but other carcinogens have also been implicated, including tobacco smoke. Findings have been conflicting however. We investigated associations between cigarette smoking and incidence of BCC or SCC in QSkin, a prospective study of skin cancer (n=43,794). Smoking history was self-reported at baseline; newly diagnosed BCCs and SCCs were ascertained through data linkage and verified by histopathology reports. We restricted analyses to white participants who at baseline reported no past history of skin cancer excisions and no more than 5 destructively-treated actinic skin lesions...
April 13, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28408001/cost-effectiveness-analysis-of-a-skin-awareness-intervention-for-early-detection-of-skin-cancer-targeting-men-older-than-50-years
#5
Louisa G Gordon, Joshua Brynes, Peter D Baade, Rachel E Neale, David C Whiteman, Philippa H Youl, Joanne F Aitken, Monika Janda
OBJECTIVES: To assess the cost-effectiveness of an educational intervention encouraging self-skin examinations for early detection of skin cancers among men older than 50 years. METHODS: A lifetime Markov model was constructed to combine data from the Skin Awareness Trial and other published sources. The model incorporated a health system perspective and the cost and health outcomes for melanoma, squamous and basal cell carcinomas, and benign skin lesions. Key model outcomes included Australian costs (2015), quality-adjusted life-years (QALYs), life-years, and counts of skin cancers...
April 2017: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/28406864/multistep-approach-for-improved-aesthetic-and-functional-outcomes-for-lower-extremity-wound-closure-after-mohs-micrographic-surgery
#6
Elizabeth Kiwanuka, Antonio P Cruz
BACKGROUND: Lower extremity wounds present a major clinical challenge. OBJECTIVE: This paper introduces a new multistep approach for improved aesthetic and functional outcome for lower extremity wound closure after Mohs micrographic surgery. PATIENTS AND METHODS: In this prospective case series, 12 consecutive patients undergoing Mohs micrographic surgery for cutaneous malignancies of the lower extremities underwent closure assisted by elastic bandages, proper positioning with 45° flexion of the knee, buried vertical mattress sutures, and careful eversion, using a premium angled stapler...
April 11, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28399340/what-s-new-in-eyelid-tumors
#7
Nora Silverman, Roman Shinder
Eyelid malignancies represent between 5% and 10% of all skin cancers. Basal cell carcinoma is the most common, followed by squamous cell carcinoma, sebaceous cell carcinoma, Merkel cell carcinoma, and melanoma. The gold standard treatment for periocular epithelial malignancies is surgical excision. Given the constraints of the anatomy and function of the eyelids, excision with negative margins and reconstruction can be challenging. In cases of significant tissue invasion or metastasis, complete tumor removal may not be possible...
March 2017: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/28377416/spectrum-of-immune-related-conditions-associated-with-risk-of-keratinocyte-cancers-among-elderly-adults-in-the-united-states
#8
Elizabeth L Yanik, Ruth M Pfeiffer, D Michael Freedman, Martin A Weinstock, Elizabeth K Cahoon, Sarah T Arron, Matthew Chaloux, M Kari Connolly, Priyadharsini Nagarajan, Eric A Engels
Elevated keratinocyte carcinoma (KC) risk is present with several immune-related conditions, e.g., solid organ transplantation and non-Hodgkin lymphoma. Because many immune-related conditions are rare, their relationships with KC have not been studied. We used Medicare claims to identify cutaneous squamous cell carcinoma (SCC) and basal cell carcinoma (BCC) cases in 2012, and controls matched on sex and age. All subjects were aged 65-95 years, of white race, and had attended ≥1 dermatologist visit in 2010-2011...
April 4, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28376160/history-of-keratinocyte-carcinoma-and-risk-of-melanoma-a-prospective-cohort-study
#9
Shaowei Wu, Eunyoung Cho, Wen-Qing Li, Abrar A Qureshi
Background: The association between history of keratinocyte carcinoma (KC, also known as nonmelanoma skin cancer) and risk of developing invasive melanoma has not been assessed comprehensively using prospective data. Methods: We followed 91 846 women in the Nurses' Health Study (NHS; 1984-2010), 114 918 women in the NHSII (1989-2011), and 48 946 men in the Health Professionals Follow-up Study (1986-2010) for diagnoses of KC and melanoma biennially. Cox proportional hazards models were used to compute hazard ratios (HRs) and 95% confidence intervals (CIs) of melanoma associated with history of KC, basal cell carcinoma (BCC), and squamous cell carcinoma (SCC)...
April 1, 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/28370784/reviewing-the-genetic-alterations-in-high-risk-cutaneous-squamous-cell-carcinoma-a-search-for-prognostic-markers-and-therapeutic-targets
#10
Bruce G Ashford, Jonathan Clark, Ruta Gupta, N Gopalakrishna Iyer, Bing Yu, Marie Ranson
Cutaneous squamous cell carcinoma (SCC) is second only in incidence to basal cell carcinoma (BCC), effecting up to 500 000 people in the United States annually. Metastasis to regional lymph nodes occurs in approximately 5% of cases and imparts significant morbidity. Standard treatment in this group involves a combination of surgery and adjuvant radiation. Currently, there are no clinically useful biomarkers of metastatic potential in primary cutaneous SCC and histological predictors can be unreliable. The high level of mutational burden in normal UV-exposed skin has hampered the search for novel drivers of invasive disease, and indeed metastatic potential...
April 3, 2017: Head & Neck
https://www.readbyqxmd.com/read/28368419/%C3%AE-np63%C3%AE-promotes-adhesion-of-metastatic-prostate-cancer-cells-to-the-bone-through-regulation-of-cd82
#11
V Di Giacomo, T V Tian, A Mas, M Pecoraro, L Batlle-Morera, L Noya, J Martín-Caballero, J Ruberte, W M Keyes
ΔNp63α is a critical mediator of epithelial development and stem cell function in a variety of tissues including the skin and breast, while overexpression of ΔNp63α acts as an oncogene to drive tumor formation and cancer stem cell properties in squamous cell carcinoma. However, with regards to the prostate, while ΔNp63α is expressed in the basal stem cells of the mature gland, during adenocarcinoma development, its expression is lost and its absence is used to clinically diagnose the malignant state. Surprisingly, here we identify a sub-population of bone metastatic prostate cancer cells in the PC3 cell line that express ΔNp63α...
April 3, 2017: Oncogene
https://www.readbyqxmd.com/read/28365039/tumor-recurrence-of-keratinocyte-carcinomas-judged-appropriate-for-mohs-micrographic-surgery-using-appropriate-use-criteria
#12
Sarah E Stuart, Patrick Schoen, Chengshi Jin, Rupa Parvataneni, Sarah Arron, Eleni Linos, W John Boscardin, Mary-Margaret Chren
BACKGROUND: The use of Mohs micrographic surgery (MMS) has increased greatly to treat basal cell and cutaneous squamous cell carcinomas (keratinocyte carcinoma [KC]), and consensus-based Appropriate Use Criteria (AUC) were developed to identify tumors for which MMS is appropriate. OBJECTIVE: We sought to compare recurrence rates after different treatments in tumors judged appropriate for MMS. METHODS: We used data from an observational prospective cohort study and retrospectively categorized consecutive tumors as appropriate for MMS according to the AUC...
March 29, 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28363758/fluorescence-spectroscopy-as-a-tool-to-in-vivo-discrimination-of-distinctive-skin-disorders
#13
Vitoria Helena Maciel, Wagner Rafael Correr, Cristina Kurachi, Vanderlei Salvador Bagnato, Cacilda da Silva Souza
BACKGROUND: Fast and non-invasive analytical methods, as fluorescence spectroscopy, have potential applications to detect modifications of biochemical and morphologic properties of malignant tissues. In this study, we propose to analyze the fluorescence spectra using k-Nearest Neighbours algorithm (k-NN) and ratio of the fluorescence intensity (FI) to differentiate skin disorders of distinctive etiologies and morphologies. MATERIALS AND METHODS: Laser-induced autofluorescence spectra upon excitation at 408nm were collected from basal cell carcinoma (BCC) subtypes (n=45/212 spectra), psoriasis (PS) (n=37/193 spectra) and Bowen's disease (BD) (n=04/19 spectra) lesions and respective normal skin at sun-exposed (EXP) and non-exposed (NEXP) sites of the same patient...
March 28, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28361252/-single-center-analysis-of-the-dermatosurgical-patient-cohort-of-a%C3%A2-tumor-center-in-germany
#14
A Lobeck, C Weiss, A Orouji, P-S Koch, M Heck, J Utikal, W Koenen, J Faulhaber, C-D Klemke, M Felcht
BACKGROUND: The incidence of skin cancer continues to increase. However, little is known about the dermatosurgical characteristics of the patients. PATIENTS AND METHODS: In this single center, retrospective study, dermatosurgical reports of all patients treated because of basal cell carcinomas (BCC), squamous cell carcinomas (SCC), and malignant melanoma (MM) between 2004 and 2013 were analyzed. RESULTS: During the observed period, the number of operated BCC rose by a factor of 1...
March 30, 2017: Der Hautarzt; Zeitschrift Für Dermatologie, Venerologie, und Verwandte Gebiete
https://www.readbyqxmd.com/read/28352657/randomized-placebo-controlled-window-trial-of-egfr-src-or-combined-blockade-in-head-and-neck-cancer
#15
Julie E Bauman, Umamaheswar Duvvuri, William E Gooding, Tanya J Rath, Neil D Gross, John Song, Antonio Jimeno, Wendell G Yarbrough, Faye M Johnson, Lin Wang, Simion Chiosea, Malabika Sen, Jason Kass, Jonas T Johnson, Robert L Ferris, Seungwon Kim, Fred R Hirsch, Kimberly Ellison, John T Flaherty, Gordon B Mills, Jennifer R Grandis
BACKGROUND. EGFR and Src family kinases are upregulated in head and neck squamous cell carcinoma (HNSCC). EGFR interacts with Src to activate STAT3 signaling, and dual EGFR-Src targeting is synergistic in HNSCC preclinical models. pSrc overexpression predicted resistance to the EGFR inhibitor, erlotinib, in a prior window trial. We conducted a 4-arm window trial to identify biomarkers associated with response to EGFR and/or Src inhibition. METHODS. Patients with operable stage II-IVa HNSCC were randomized to 7-21 days of neoadjuvant erlotinib, the Src inhibitor dasatinib, the combination of both, or placebo...
March 23, 2017: JCI Insight
https://www.readbyqxmd.com/read/28346486/grem1-is-expressed-in-the-cancer-associated-myofibroblasts-of-basal-cell-carcinomas
#16
Hye Sung Kim, Myung Soo Shin, Min Seok Cheon, Jae Wang Kim, Cheol Lee, Woo Ho Kim, Young Sill Kim, Bo Gun Jang
Cancer-associated fibroblasts (CAFs) play important roles in cancer progression through their complex interactions with cancer cells. The secreted bone morphogenetic protein antagonist, gremlin1 (GREM1) is expressed by the CAFs of basal cell carcinomas (BCCs), and promotes the growth of cancer cells. In this study, we investigated the expression of GREM1 mRNAs in various benign and malignant skin tumors, including various BCC subtypes. Analysis by RNA in situ hybridization (ISH) revealed that fibroblasts in the scar tissue expressed GREM1 and α-smooth muscle actin (α-SMA), whereas resident fibroblasts in the dermis of the normal skin did not express GREM1...
2017: PloS One
https://www.readbyqxmd.com/read/28344599/does-ultrasound-measurement-improve-the-accuracy-of-electronic-brachytherapy-in-the-treatment-of-superficial-non-melanomatous-skin-cancer
#17
Uma Goyal, Junhan Pan, Haiyan Cui, Baldassarre Stea
PURPOSE: Electronic brachytherapy (eBT) is a form of contact radiation therapy used for thin superficial non-melanomatous skin cancers (NMSCs). An accurate measurement of diameter and depth is important for eBT treatment planning. Therefore, we compared clinical measurements by an experienced physician to measurements obtained using ultrasound (US), an objective imaging modality, in order to determine if clinical measurements were accurate enough for adequate NMSC treatment. MATERIAL AND METHODS: Eighteen patients with 20 biopsy-proven NMSCs first had a clinical examination and then an US evaluation prior to starting eBT...
February 2017: Journal of Contemporary Brachytherapy
https://www.readbyqxmd.com/read/28343330/human-papilloma-virus-hpv-infection-leads-to-the-development-of-head-and-neck-lesions-but-offers-better-prognosis-in-malignant-indian-patients
#18
Shreya Sarkar, Neyaz Alam, Jayanta Chakraborty, Jaydip Biswas, Syam Sundar Mandal, Susanta Roychoudhury, Chinmay Kumar Panda
Head and neck cancers constitute a multifactorial global disease burden and are associated with human papilloma virus (HPV) as a possible risk factor. The aim of the study is to understand the relationship between HPV and the development of head and neck lesions in Indian patients. To this end, frequency of HPV was assessed in relation to different demographic and etiological features and correlated with patient survival. The prevalence of HPV significantly increased from mild dysplastic lesions (43.6%) to head and neck squamous cell carcinoma (HNSCC) stage IV (68...
March 25, 2017: Medical Microbiology and Immunology
https://www.readbyqxmd.com/read/28343197/-skin-cancers-in-kidney-transplant-recipients
#19
Anna Bieryło, Szymon Brzósko, Elżbieta Laudańska, Beata Naumnik
Kidney transplantation is the best treatment for end-stage renal failure. It prolongs the patient's life, improves quality of life and reduces costs associated with renal replacement therapy. Increasingly, newer immunosuppressive regimens allow for the proper functioning of the transplanted organ for many years. The progress in transplantation, qualification patients in older age for the procedure and longer survival of kidney graft lead to an increase in the number of patients receiving immunosuppressive drugs...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28341226/lung-adenocarcinoma-and-squamous-cell-carcinoma-gene-expression-subtypes-demonstrate-significant-differences-in-tumor-immune-landscape
#20
Hawazin Faruki, Gregory M Mayhew, Jonathan S Serody, D Neil Hayes, Charles M Perou, Myla Lai-Goldman
INTRODUCTION: Molecular subtyping of lung Adenocarcinoma (AD) and lung Squamous Cell Carcinoma (SQ) reveal biologically diverse tumors that vary in their genomic and clinical attributes. METHODS: Using published immune cell signatures and several Lung AD and SQ gene expression datasets including The Cancer Genome Atlas (TCGA), immune response in relation to AD and SQ expression subtypes was examined. Expression of immune cell populations and other immune related genes including CD274 (PD-L1) was investigated in the tumor microenvironment relative to the expression subtypes of AD (Terminal Respiratory Unit (TRU), Proximal Proliferative (PP), and Proximal Inflammatory (PI)) and SQ subtypes (Primitive, Classical, Secretory, Basal)...
March 21, 2017: Journal of Thoracic Oncology
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