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https://www.readbyqxmd.com/read/28818497/drp1-regulates-mitochondrial-morphology-and-cell-proliferation-in-cutaneous-squamous-cell-carcinoma
#1
Shinya Kitamura, Teruki Yanagi, Keisuke Imafuku, Hiroo Hata, Riichiro Abe, Hiroshi Shimizu
BACKGROUND: Dynamin-related protein 1 (Drp1) mediates mitochondrial fission. Recently, several studies have shown that Drp1 plays an important role in some cancers. However, little is known about Drp1 in cutaneous squamous cell carcinoma (SCC). OBJECTIVE: To investigate the role of Drp1 in the tumorigenesis of cutaneous SCCs. METHODS AND RESULTS: We investigated cell proliferation, cell cycle, mitochondrial morphology, and MAPK signaling pathway using cutaneous SCC A431 and DJM1 cells that were transfected with shRNA vectors targeting Drp1...
August 5, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28811301/topically-applied-carvedilol-attenuates-solar-ultraviolet-radiation-induced-skin-carcinogenesis
#2
Kevin M Huang, Sherry Liang, Steven Yeung, Etuajie Oiyemhonlan, Kristan H Cleveland, Cyrus Parsa, Robert Orlando, Frank L Meyskens, Bradley Andresen, Ying Huang
In previous studies, the β-blocker carvedilol inhibited EGF-induced epidermal cell transformation and chemical carcinogen-induced mouse skin hyperplasia. As exposure to ultraviolet (UV) radiation leads to skin cancer, the present study examined whether carvedilol can prevent UV-induced carcinogenesis. Carvedilol absorbs UV like a sunscreen; thus, to separate pharmacological from sunscreen effects, 4-hydroxycarbazole (4-OHC), which absorbs UV to the same degree as carvedilol, served as control. JB6 P+ cells, an established epidermal model for studying tumor promotion, were used for evaluating the effect of carvedilol on UV-induced neoplastic transformation...
August 15, 2017: Cancer Prevention Research
https://www.readbyqxmd.com/read/28807942/nuclear-fak-and-runx1-cooperate-to-regulate-igfbp3-cell-cycle-progression-and-tumor-growth
#3
Marta Canel, Adam Byron, Andrew H Sims, Jessy Cartier, Hitesh Patel, Margaret C Frame, Valerie G Brunton, Bryan Serrels, Alan Serrels
Nuclear focal adhesion kinase (FAK) is a potentially important regulator of gene expression in cancer, impacting both cellular function and the composition of the surrounding tumor microenvironment. Here we report in a murine model of skin squamous cell carcinoma (SCC) that nuclear FAK regulates Runx1-dependent transcription of insulin-like growth factor binding protein 3 (IGFBP3), and that this regulates SCC cell cycle progression and tumor growth in vivo. Furthermore, we identified a novel molecular complex between FAK and Runx1 in the nucleus of SCC cells and showed that FAK interacted with a number of Runx1 regulatory proteins, including Sin3a and other epigenetic modifiers known to alter Runx1 transcriptional function through post-translational modification...
August 14, 2017: Cancer Research
https://www.readbyqxmd.com/read/28805940/new-and-current-preventive-treatment-options-in-actinic-keratosis
#4
REVIEW
P Arenberger, M Arenbergerova
Actinic keratosis (AK) is a characteristic skin lesion on skin areas of subjects with mainly phototype I and phototype II, or with specific genetic factors and who are exposed to prolonged ultraviolet radiation. AK may be considered a precursor of in situ squamous cell carcinoma (SCC), a type of non-melanoma skin cancer (NMSC). However, it is still not possible to predict which AK lesions will develop into SCC. Early treatment of AK is therefore recommended. Despite the increasing number of patients with AK developing into SCC, to date, there is still no clear suggestion of therapeutic strategy for AK...
September 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28800923/-squamous-cell-carcinoma-associated-with-use-of-skin-lightening-cream
#5
O Faye, A-A Dicko, S Berthé, L Cissé, B Traoré, A Keita, Y Fofana, K Coulibaly, B Keita
BACKGROUND: Women widely use skin-lightening products for cosmetic purposes in sub-Saharan Africa despite numerous reported cutaneous and systemic complications. The occurrence of epidermoid carcinoma has long been reported, but only three cases have been published so far. We report the first case in Mali. PATIENTS AND METHODS: A 30-year old woman with no noteworthy medical history was seen at our outpatient center for cervical ulceration that had been present for the last 5 years...
August 8, 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/28799948/anticancer-drugs-and-the-regulation-of-hedgehog-genes-gli1-and-ptch1-a-comparative-study-in-nonmelanoma-skin-cancer-cell-lines
#6
Uffe H Olesen, Sophie Bojesen, Julie Gehl, Merete Haedersdal
Nonmelanoma skin cancer is the most common cancer in humans, comprising mainly basal cell carcinoma (BCC) and squamous cell carcinoma (SCC). BCC proliferation is highly dependent on the Hedgehog signaling pathway. We aimed to investigate a panel of anticancer drugs with known activity against skin cancer for their therapeutic potential in localized, enhanced topical treatment of SCC and BCC. Cytotoxicity profiles for vismodegib, 5-fluorouracil (5-FU), methotrexate (MTX), cisplatin, bleomycin, and vorinostat were established in terms of half maximal inhibitory concentration values in a panel of immortalized keratinocytes (HaCaT), BCC (UWBCC1 and BCC77015), and SCC (A431 and SCC25) cell lines...
August 9, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28799019/endometriosis-and-the-risk-of-skin-cancer-a-prospective-cohort-study
#7
Leslie V Farland, Simon Lorrain, Stacey A Missmer, Laureen Dartois, Iris Cervenka, Isabelle Savoye, Sylvie Mesrine, Marie-Christine Boutron-Ruault, Marina Kvaskoff
PURPOSE: Endometriosis has been associated with an increased risk of skin melanoma. However, associations with other skin cancer types and how they compare with melanoma are unclear. Our objective was to prospectively investigate the relationships between endometriosis and risk of non-melanoma and melanoma skin cancers. METHODS: E3N is a prospective cohort of 98,995 French women aged 40-65 years in 1990. Data on surgically confirmed endometriosis and skin cancer diagnoses were collected every 2-3 years through self-report, with skin cancer cases confirmed through pathology reports...
August 10, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28797620/extended-follow-up-of-patients-treated-with-bendamustine-for-lymphoid-malignancies
#8
Mara Penne, Maryam Sarraf Yazdy, Kruti Sheth Nair, Bruce D Cheson
INTRODUCTION: Bendamustine, typically in combination with rituximab, is an effective treatment for chronic lymphocytic leukemia (CLL) and B-cell non-Hodgkin lymphoma. Despite its acceptable short-term toxicity profile, long-term toxicities are less well established. This study investigated the long-term adverse effects of bendamustine and responses to subsequent treatments. PATIENTS AND METHODS: Charts of 194 patients were retrospectively reviewed; 54% had received prior treatment (76% attained complete response [CR] or partial response [PR])...
June 30, 2017: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/28797028/characterisation-of-the-cancer-associated-glucocorticoid-system-key-role-of-11%C3%AE-hydroxysteroid-dehydrogenase-type-2
#9
Nicola Cirillo, David J Morgan, Maria Carmela Pedicillo, Antonio Celentano, Lorenzo Lo Muzio, Michael J McCullough, Stephen S Prime
BACKGROUND: Recent studies have shown that production of cortisol not only takes place in several non-adrenal peripheral tissues such as epithelial cells but, also, the local inter-conversion between cortisone and cortisol is regulated by the 11β-hydroxysteroid dehydrogenases (11β-HSDs). However, little is known about the activity of this non-adrenal glucocorticoid system in cancers. METHODS: The presence of a functioning glucocorticoid system was assessed in human skin squamous cell carcinoma (SCC) and melanoma and further, in 16 epithelial cell lines from 8 different tissue types using ELISA, western blotting and immunofluorescence...
August 10, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28796401/combination-cisplatin-and-sulforaphane-treatment-reduces-proliferation-invasion-and-tumor-formation-in-epidermal-squamous-cell-carcinoma
#10
Candace Kerr, Gautam Adhikary, Daniel Grun, Nicholas George, Richard L Eckert
Epidermal squamous cell carcinoma is an extremely common type of cancer. Early tumors can be successfully treated by surgery, but recurrent disease is aggressive and resistant to therapy. Cisplatin is often used as a treatment, but the outcome is rarely satisfactory. For this reason new strategies are required. Sulforaphane is a diet-derived cancer prevention agent that is effective in suppressing tumor growth in animal models of skin cancer. We monitored the efficacy of sulforaphane and cisplatin as a combined therapy for squamous cell carcinoma...
August 10, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28795467/cenp-r-acts-bilaterally-as-a-tumor-suppressor-and-an-oncogene-in-the-two-stage-skin-carcinogenesis-model
#11
Kazuhiro Okumura, Naoko Kagawa, Megumi Saito, Yasuhiro Yoshizawa, Haruka Munakata, Eriko Isogai, Tatsuo Fukagawa, Yuichi Wakabayashi
CENP-R is a component of the CENP-O complex, including CENP-O, CENP-P, CENP-Q, CENP-R, and CENP-U and is constitutively localized to kinetochores throughout the cell cycle in vertebrates. CENP-R deficient chicken DT40 cells are viable and show very minor effect on mitosis. To investigate the functional roles of CENP-R in vivo, we generated CENP-R deficient mice (Cenp-r(-/-) ). Mice heterozygous or homozygous for Cenp-r null mutation are viable and healthy, with no apparent defect in growth and morphology, indicating Cenp-r is not essential for normal development...
August 9, 2017: Cancer Science
https://www.readbyqxmd.com/read/28780365/risk-of-cutaneous-squamous-cell-carcinoma-after-treatment-of-basal-cell-carcinoma-with-vismodegib
#12
Tina Bhutani, Michael Abrouk, Camelia S Sima, Natalia Sadetsky, Jeannie Hou, Ivor Caro, Mary-Margaret Chren, Sarah T Arron
BACKGROUND: Vismodegib is a first-in-class agent targeting the hedgehog signaling pathway for treatment of patients with locally advanced basal cell carcinoma (BCC) and metastatic BCC. There have been concerns about the development of squamous cell carcinoma (SCC) in patients treated with this drug. OBJECTIVE: We sought to determine whether treatment with vismodegib is associated with an increase in the risk of cutaneous SCC. METHODS: In this retrospective cohort study, patients treated with vismodegib as part of phase I and II clinical studies were compared with participants from the University of California, San Francisco, Nonmelanoma Skin Cancer Cohort who received standard therapy for primary BCC...
August 2, 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28780363/effect-of-voriconazole-on-risk-of-nonmelanoma-skin-cancer-after-hematopoietic-cell-transplantation
#13
Lawrence F Kuklinski, Shufeng Li, Margaret R Karagas, Wen-Kai Weng, Bernice Y Kwong
BACKGROUND: Voriconazole has previously been associated with increased risk for cutaneous squamous cell carcinoma (SCC) in solid organ transplant recipients. Less is known about the risk in patients after hematopoietic cell transplantation (HCT). OBJECTIVE: We evaluated the effect of voriconazole on the risk for nonmelanoma skin cancer (NMSC), including SCC and basal cell carcionoma, among those who have undergone allogeneic and autologous HCT. METHODS: In all, 1220 individuals who had undergone allogeneic HCT and 1418 who had undergone autologous HCT were included in a retrospective cohort study...
August 2, 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28776778/eruptive-keratoacanthomas-arising-in-the-setting-of-lichenoid-toxicity-after-pd1-inhibition-with-nivolumab
#14
Stephanie I Feldstein, Forum Patel, Larissa Larsen, Edward Kim, Samuel Hwang, Maxwell A Fung
We were fascinated to read the observations of Bandino et al. who described two patients who developed keratoacanthomas and squamous cell carcinoma in association with bullous pemphigoid-like lesions after treatment with PD-1 inhibitors, nivolumab or pembrolizumab, in a recent issue of the Journal. Herein we report two patients with no prior history of skin cancer who developed eruptive keratoacanthomas in the setting of lichenoid skin toxicity after starting nivolumab. This article is protected by copyright...
August 3, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28771885/in-vivo-measurements-of-blood-vessels-distribution-in-non-melanoma-skin-cancer-by-dynamic-optical-coherence-tomography-a-new-quantitative-measure
#15
V Sigsgaard, L Themstrup, P Theut Riis, J Olsen, G B Jemec
BACKGROUND: Skin biopsies only provide point-in-time data making longitudinal studies difficult. Using Dynamic optical coherence tomography (D-OCT) in vivo, non-invasive imaging of the microvasculature becomes possible. The current OCT literature is almost exclusively based on qualitative information but quantitative data may offer additional advantages, for example, by reducing observer variation. The objective of this study was to evaluate the in vivo superficial distribution of blood vessels, defined as the surface-to-first-vessel distance, in actinic keratosis, basal cell carcinoma, squamous cell carcinoma and normal skin...
August 3, 2017: Skin Research and Technology
https://www.readbyqxmd.com/read/28766045/pad2-overexpression-in-transgenic-mice-augments-malignancy-and-tumor-associated-inflammation-in-chemically-initiated-skin-tumors
#16
Sunish Mohanan, Sachi Horibata, Lynne J Anguish, Chinatsu Mukai, Kelly Sams, John L McElwee, Dalton McLean, Angela Yan, Scott A Coonrod
We previously found that transgenic mice overexpressing MMTV-FLAG-hPAD2 (PAD2OE) developed spontaneous skin lesions, with a subset of these lesions progressing to invasive squamous cell carcinoma (SCC). The goal of this report was to better understand the potential mechanisms by which PAD2 overexpression promotes skin cancer. Here, PAD2OE mice were treated with the carcinogen, 9,10-dimethyl-1,2-benzanthracene and with O-tetradecanoylphorbol-13-acetate and then scored for papilloma formation. Additionally, tumor sections were evaluated for evidence of tumor cell invasion and inflammation...
August 2, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28766013/metal-arc-welding-and-the-risk-of-skin-cancer
#17
K N Heltoft, R M Slagor, T Agner, J P Bonde
OBJECTIVES: Arc welding produces the full spectrum of ultraviolet radiation and may be a contributory cause of skin cancer; however, there has been little research into this occupational hazard. The aim of this study is to explore if metal arc welding increases the risk of malignant melanoma and/or basal cell carcinoma (BCC) and squamous cell carcinoma (SCC) on skin areas which may possibly be exposed (neck, head, and upper extremities). METHOD: A Danish national company-based historic cohort of 4333 male metal arc welders was followed from 1987 through 2012 to identify the risk of skin cancer...
August 1, 2017: International Archives of Occupational and Environmental Health
https://www.readbyqxmd.com/read/28764171/evaluation-of-hypoxia-inducible-factor-1%C3%AE-and-glucose-transporter-1-expression-in-non-melanoma-skin-cancer-an-immunohistochemical-study
#18
Iman Seleit, Ola Ahmed Bakry, Dalia Rifaat Al-Sharaky, Rania Abdel Aziz Ragab, Shimaa Ahmed Al-Shiemy
INTRODUCTION: Hypoxia Inducible Factor-1 (HIF-1) is a mediator enabling cell adaptation to hypoxia. It plays its role mainly through transcription of many target genes including Glucose Transporter-1 (GLUT-1) gene. AIM: The present work aimed at evaluating the pattern and distribution of HIF-1α and GLUT-1 in each case and control. MATERIALS AND METHODS: A case-control and retrospective study was conducted on archival blocks diagnosed from pathology department as, Basal Cell Carcinoma (BCC, 20 cases), cutaneous Squamous Cell Carcinoma (SCC, 20 cases) and 20 normal site-matched skin biopsies from age and gender-matched healthy subjects as a control...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28763595/psychosocial-distress-and-desire-for-support-among-inpatients-with-skin-cancer
#19
Britta Buchhold, Andreas Arnold, Stine Lutze, Andreas Jülich, Monique Winkler, Johannes Bahlmann, Claudia Eggert, Michael Jünger, Hans-Joachim Hannich
BACKGROUND: Regular assessment of psychosocial distress is an important component of adequate psycho-oncological and social support in cancer patients. To date, relevant studies on skin cancer patients have primarily included individuals with melanoma. OBJECTIVES: (1) Does the need for psychosocial support vary with the type of skin cancer? (2) Do mentally distressed patients desire support? (3) From the various individuals in the treatment team, whom do patients choose as potential contact person? PATIENTS UND METHODS: Inpatients with skin cancer were asked to self-assess their psychosocial situation using the Hornheide questionnaire...
August 2017: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/28762849/first-line-carboplatin-pemetrexed-and-panitumumab-in-patients-with-advanced-non-squamous-kras-wild-type-wt-non-small-cell-lung-cancer-nsclc
#20
David R Spigel, Tarek M Mekhail, David Waterhouse, Terence Hadley, Charles Webb, Howard A Burris, John D Hainsworth, F Anthony Greco
BACKGROUND: We added panitumumab to standard combination chemotherapy as first-line treatment for patients with advanced KRAS WT non-squamous NSCLC. METHODS: Patients received panitumumab 9 mg/kg IV, pemetrexed 500 mg/m(2) IV, and carboplatin AUC = 6 IV every 21 days. After 6 cycles, maintenance therapy with panitumumab and pemetrexed was administered every 21 days until progressive disease or unacceptable toxicity. RESULTS: 29 of 66 patients (44%) had objective responses...
August 1, 2017: Cancer Investigation
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