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https://www.readbyqxmd.com/read/28926927/grim-19-represses-the-proliferation-and-invasion-of-cutaneous-squamous-cell-carcinoma-cells-associated-with-downregulation-of-stat3-signaling
#1
Na Wu, Haiying Hui, Li Cui, Fan Yang
The gene associated with retinoid-interferon-induced mortality-19 (GRIM-19) has been identified as a tumor suppressor in many human cancers. However, little is known about the role of GRIM-19 in cutaneous squamous cell carcinoma (CSCC). Here, we aimed to investigate the potential function of GRIM-19 in CSCC and explore the underlying molecular mechanisms. We found that GRIM-19 protein and transcript levels were significantly decreased in CSCC cell lines. Overexpression of GRIM-19 suppressed the proliferation and invasion of CSCC cells, whereas knockdown of GRIM-19 promoted the proliferation and invasion of CSCC cells...
September 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28925390/alterations-of-micrornas-throughout-the-malignant-evolution-of-cutaneous-squamous-cell-carcinoma-the-role-of-mir-497-in-epithelial-to-mesenchymal-transition-of-keratinocytes
#2
A Mizrahi, A Barzilai, D Gur-Wahnon, I Z Ben-Dov, S Glassberg, T Meningher, E Elharar, M Masalha, J Jacob-Hirsch, H Tabibian-Keissar, I Barshack, J Roszik, R Leibowitz-Amit, Y Sidi, D Avni
Skin carcinogenesis is known to be a multi-step process with several stages along its malignant evolution. We hypothesized that transformation of normal epidermis to cutaneous squamous cell carcinoma (cSCC) is causally linked to alterations in microRNAs (miRNA) expression. For this end we decided to evaluate their alterations in the pathologic states ending in cSCC. Total RNA was extracted from formalin fixed paraffin embedded biopsies of five stages along the malignant evolution of keratinocytes towards cSCC: Normal epidermis, solar elastosis, actinic keratosis KIN1-2, advanced actinic keratosis KIN3 and well-differentiated cSCC...
September 18, 2017: Oncogene
https://www.readbyqxmd.com/read/28925330/preoperative-positron-emission-tomography-for-node-positive-head-and-neck-cutaneous-squamous-cell-carcinoma
#3
Nir Hirshoren, Elizabeth Olayos, Alan Herschtal, Aravind S Ravi Kumar, David E Gyorki
Objectives Surgery is the primary treatment modality for node-positive cutaneous squamous cell carcinoma of the head and neck with no distant disease (HNcSCC-M0). The role of preoperative positron emission tomography/computed tomography (PET/CT) scan for these patients is unclear. We compared preoperative PET/CT with final histopathology among patients undergoing lymphadenectomy and/or parotidectomy for HNcSCC-M0. Study Design Case series with chart review. Setting Single Australian center. Subjects and Methods Investigation included disease parameters and preoperative CT and PET/CT findings of 64 patients with node-positive HNcSCC without distant metastatic disease...
September 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28917382/a-new-evidence-based-risk-stratification-system-for-cutaneous-squamous-cell-carcinoma-into-low-intermediate-and-high-risk-groups-with-implications-for-management
#4
REVIEW
Christian L Baum, Adam C Wright, Juan-Carlos Martinez, Christopher J Arpey, Jerry D Brewer, Randall K Roenigk, Clark C Otley
Most primary cutaneous squamous cell carcinomas are cured with surgery. A subset, however, may develop local and nodal metastasis that may eventuate in disease-specific; death. This subset has been variably termed high risk. Herein, we review; an emerging body of data on the risks of these outcomes and propose an evidence-based; risk stratification for low-, intermediate-, and high-risk tumors that takes into; account both tumor and patient characteristics. Finally, we discuss a framework for; management of these tumors on the basis of data, when available, and our; recommendations when data are sparse...
September 13, 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28914954/resident-rounds-part-iii-case-report-metastatic-cutaneous-squamous-cell-carcinoma-in-an-african-american-female
#5
Jennifer N Harb, Alexandra L Owens, Kathryn Mooneyham Potter, Michael Montuno, Reordan O De Jesus, Sailesh Konda
Cutaneous squamous cell carcinoma (cSCC) is the most common skin cancer diagnosed in African Americans.<sup>1</sup> Twenty to forty percent of cSCCs reported in African Americans are related to chronic scarring processes or areas of in ammation.<sup>2</sup> Risk factors for developing cSCCs in patients of color include chronic scars resulting from burns, skin ulcers, and radiation sites; and chronic inflammatory diseases such as discoid lupus and hidradenitis suppuritiva.<sup>1</sup> Although skin cancer only accounts for 1% to 2% of cancers diagnosed within African Americans, it is associated with increased morbidity and mortality in this population...
January 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28914690/incidence-trends-and-survival-of-skin-melanoma-and-squamous-cell-carcinoma-in-cluj-county-romania
#6
Ofelia Şuteu, Mihaiela L Blaga, Florian Nicula, Patricia Şuteu, Ovidiu Coza, Patriciu Achimaş-Cadariu, Daniela Coza
The aim of this study was to determine the incidence trends of cutaneous melanoma (CM) and squamous cell carcinoma (SCC) in Cluj County, from 1998 to 2011, and the 5-year net survival between 2006 and 2010. Data on all cases of CM and SCC between 1998 and 2011 were obtained from Cluj Cancer Registry. Incidence rates were age standardized by the direct method Age Standardized Incidence Rate (ASIR), using the world standard population. Trends and annual percentage change (APC) of incidence rates were calculated by joinpoint regression analysis...
September 2017: European Journal of Cancer Prevention
https://www.readbyqxmd.com/read/28913301/concordant-surgical-treatment-non-melanocytic-skin-cancer-of-the-head-and-neck
#7
Wan Cheol Ryu, In Chang Koh, Yong Hae Lee, Jong Hyun Cha, Sang Il Kim, Chang Gyun Kim
BACKGROUND: Skin cancer is the most common type of cancer. Of the 4 million skin lesions excised annually worldwide, approximately 2 million are considered cancerous. In this study, we aimed to describe a regional experience with skin cancers treated by a single senior surgeon and to provide a treatment algorithm. METHODS: The medical records of 176 patients with head and neck non-melanocytic skin cancer (NMSC) who were treated by a single surgeon at our institution between January 2010 and May 2016 were retrospectively reviewed, and their data (age, sex, pathological type, tumor location/size, treatment modality) were analyzed...
March 2017: Arch Craniofac Surg
https://www.readbyqxmd.com/read/28913292/the-effect-of-botulinum-toxin-on-an-iatrogenic-sialo-cutaneous-fistula
#8
Seung Eun Hong, Jung Woo Kwon, So Ra Kang, Bo Young Park
A sialo-cutaneous fistula is a communication between the skin and a salivary gland or duct discharging saliva. Trauma and iatrogenic complications are the most common causes of this condition. Treatments include aspiration, compression, and the administration of systemic anticholinergics; however, their effects are transient and unsatisfactory in most cases. We had a case of a patient who developed an iatrogenic sialo-cutaneous fistula after wide excision of squamous cell carcinoma in the parotid region that was not treated with conventional management, but instead completely resolved with the injection of botulinum toxin...
December 2016: Arch Craniofac Surg
https://www.readbyqxmd.com/read/28913152/early-vulvar-and-umbilical-incisional-scar-recurrence-of-cervical-squamous-cell-carcinoma-earlier-than-usually-expected
#9
Hüseyin Çağlayan Özcan, Aynur Mustafa, Zehra Bozdağ, Seyhun Sucu, Mete Gürol Uğur, Özcan Balat
Cutaneous metastasis is considered as a hazardous condition depending on the mean survival around 9 months, which usually originates from cancers of the breast, lung, ovary, colon, and rarely from the cervix. The crucial prognostic factor of cutaneous metastasis depends on the period between the primary malignancy and cutaneous metastasis. We report two cases of the unusual presentation of squamous cell cancer of the cervix that developed vulvar and umbilical metastasis in the 5(th) month of primary treatment...
June 2017: Turk J Obstet Gynecol
https://www.readbyqxmd.com/read/28898461/risks-of-different-skin-tumor-combinations-after-a-first-melanoma-squamous-cell-carcinoma-and-basal-cell-carcinoma-in-dutch-population-based-cohorts-1989-2009
#10
R J T van der Leest, L M Hollestein, L Liu, T Nijsten, E de Vries
BACKGROUND: Skin cancer patients are primarily at increased risk of developing subsequent skin cancers of the same type. Shared risk factors might also increase the occurrence of a different type of subsequent skin cancer. OBJECTIVE: To investigate risks of different skin tumor combinations after a first melanoma, squamous cell carcinoma (SCC) and basal cell carcinoma (BCC). METHODS: All melanoma and SCC patients included in the national Netherlands Cancer Registry (NCR) and all BCC patients included in the regional Eindhoven Cancer Registry (ECR) between 1989 and 2009 were followed until diagnosis of a subsequent different skin cancer (melanoma, SCC or BCC), date of death or end of study...
September 12, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28892046/targeting-nuclear-receptors-in-cancer-associated-fibroblasts-as-concurrent-therapy-to-inhibit-development-of-chemoresistant-tumors
#11
J S K Chan, M K Sng, Z Q Teo, H C Chong, J S Twang, N S Tan
Most anticancer therapies to date focus on druggable features of tumor epithelia. Despite the increasing repertoire of treatment options, patient responses remain varied. Moreover, tumor resistance and relapse remain persistent clinical challenges. These observations imply an incomplete understanding of tumor heterogeneity. The tumor microenvironment is a major determinant of disease progression and therapy outcome. Cancer-associated fibroblasts (CAFs) are the dominant cell type within the reactive stroma of tumors...
September 11, 2017: Oncogene
https://www.readbyqxmd.com/read/28887802/small-molecule-inhibitors-of-the-hedgehog-pathway-in-the-treatment-of-basal-cell-carcinoma-of-the-skin
#12
REVIEW
Rebecca Danhof, Karl Lewis, Mariah Brown
Basal cell carcinoma (BCC) is the most common type of skin cancer, with rising incidence rates primarily attributed to an aging population and ultraviolet radiation exposure. While the majority of BCCs are localized and respond to standard therapies, a very small minority of these tumors become locally destructive or metastasize. These advanced BCCs may not be amenable to localized treatment with surgery and/or radiation therapy. Most BCCs result from mutations in key receptors in the Hedgehog (HH) signaling pathway...
September 8, 2017: American Journal of Clinical Dermatology
https://www.readbyqxmd.com/read/28887499/transcription-factors-nrf2-and-hsf1-have-opposing-functions-in-autophagy
#13
Sharadha Dayalan Naidu, Dina Dikovskaya, Egle Gaurilcikaite, Elena V Knatko, Zachary R Healy, Hema Mohan, Glenn Koh, Axel Laurell, Graeme Ball, David Olagnier, Laureano de la Vega, Ian G Ganley, Paul Talalay, Albena T Dinkova-Kostova
Autophagy plays a critical role in the maintenance of cellular homeostasis by degrading proteins, lipids and organelles. Autophagy is activated in response to stress, but its regulation in the context of other stress response pathways, such as those mediated by heat shock factor 1 (HSF1) and nuclear factor-erythroid 2 p45-related factor 2 (NRF2), is not well understood. We found that the Michael acceptor bis(2-hydoxybenzylidene)acetone (HBB2), a dual activator of NRF2 and HSF1, protects against the development of UV irradiation-mediated cutaneous squamous cell carcinoma in mice...
September 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28880987/association-of-mohs-reconstructive-surgery-timing-with-postoperative-complications
#14
Matthew Q Miller, Abel P David, James E McLean, Stephen S Park, Jared Christophel
Importance: Same-day Mohs reconstructive surgery is not always possible; moreover, a delay can offer benefits such as improved surgical planning and increased blood supply to the cauterized wound bed. However, recent work found that delaying reconstruction by more than 2 days increases the postoperative complication rate. Objective: To review the outcomes of Mohs micrographic surgery (MMS) reconstruction with respect to patient- and surgery-specific variables, especially timing of repair...
September 7, 2017: JAMA Facial Plastic Surgery
https://www.readbyqxmd.com/read/28874625/a-rare-case-of-squamous-cell-carcinoma-of-a-proliferating-trichilemmal-tumour
#15
Bruno Di Pace, Vincenzo Verdura, Marina Concilio, Carlo Baldi, Pio Zeppa, Giovanni Francesco Nicoletti, Corrado Rubino
INTRODUCTION: Squamous Cell Carcinoma (SCC) includes several subtypes and these can be classified according to their clinical behaviours from the least invasive to the most aggressive. Moreover, it is appropriate to analyse their clinicalpathological patterns 1. In light of its wide histopathological variability, we encountered a rare malignant cutaneous lesion: a SCC of a proliferating trichilemmal tumour (PTT) nature. CASE REPORT: We describe the clinical and pathologic findings of an 82-year-old woman, who developed a SCC with areas of trichilemmal differentiation...
2017: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/28859143/the-effect-of-wool-hydrolysates-on-squamous-cell-carcinoma-cells-in-vitro-possible-implications-for-cancer-treatment
#16
Tatsiana Damps, Anna Katarzyna Laskowska, Tomasz Kowalkowski, Monika Prokopowicz, Anna Katarzyna Puszko, Piotr Sosnowski, Joanna Czuwara, Marek Konop, Krzysztof Różycki, Joanna Karolina Borkowska, Aleksandra Misicka, Lidia Rudnicka
Squamous cell carcinoma of the skin is the second most common cutaneous malignancy. Despite various available treatment methods and advances in noninvasive diagnostic techniques, the incidence of metastatic cutaneous squamous cell carcinoma is rising. Deficiency in effective preventive or treatment methods of transformed keratinocytes leads to necessity of searching for new anticancer agents. The present study aims to evaluate the possibility of using wool hydrolysates as such agents. Commercially available compounds such as 5-fluorouracil, ingenol mebutate, diclofenac sodium salt were also used in this study...
2017: PloS One
https://www.readbyqxmd.com/read/28858932/utilization-of-topographical-mohs-micrographic-surgery-maps-for-rapid-review-of-clinicopathologic-characteristics-of-nonmelanoma-skin-cancers-of-the-ear
#17
Stanislav N Tolkachjov
BACKGROUND: Nonmelanoma skin cancers (NMSCs) of the ear are considered high risk. Precise location of tumor sites is important when identifying surgical treatment sites. OBJECTIVE: Review precise locations and histopathologic subtypes of auricular NMSC treated with Mohs micrographic surgery (MMS) using a standardized topographical numbering system for rapid data extraction. MATERIALS AND METHODS: Using a MMS topographical number system, the author performed a retrospective chart review of 649 consecutive patients treated with MMS at Mayo Clinic for primary cutaneous basal cell carcinomas (BCCs) or squamous cell carcinomas (SCCs) of the ear...
August 29, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28857981/toll-like-receptor-7-staining-in-malignant-epithelial-tumors
#18
Regina Franz, Nathalie Ritter, Rüdiger Hein, Tilo Biedermann, Mohammed Al-Sisi, Kilian Eyerich, Natalie Garzorz-Stark, Christian Andres
BACKGROUND: As important players of the innate immune system, Toll-like receptors (TLRs) and their role for tumorigenesis have been in the focus of research. In particular TLR7 is an interesting candidate, as TLR7 agonists are broadly used for the treatment of cutaneous tumors. However, data addressing the baseline expression of TLR7 in both basal cell carcinoma (BCC) and squamous cell carcinoma (SCC) on the protein level are lacking, while on the genomic level significantly elevated expression of TLR7 in SCC but not in BCC has been demonstrated...
October 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28857248/microrna-142-5p-induces-cancer-stem-cell-like-properties-of-cutaneous-squamous-cell-carcinoma-via-inhibiting-pten
#19
Xinping Bai, Yu Zhou, Ming Yang
Cutaneous squamous cell carcinoma (cSCC) is a malignancy of keratinocyte-derived skin tumor, which is regarded as the second most common skin cancer worldwide. Accumulating evidence has established that microRNAs (miRNAs) can play a critical role in tumor initiation, progression and metastasis including cSCC. Abnormal expression of hsa-miR-142-5p has been elaborated in various tumors. Nevertheless, its expression and function in the development of cSCC remain unclear. In our study, we found that the expression of hsa-miR-142-5p in cSCC cells were greatly overexpressed compared to human benign epidermal keratinocyte cells...
August 31, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28845516/is-uv-exposure-acquired-at-work-the-most-important-risk-factor-for-cutaneous-squamous-cell-carcinoma-results-of-the-population-based-case-control-study-fb-181
#20
J Schmitt, E Haufe, F Trautmann, H-J Schulze, P Elsner, H Drexler, A Bauer, S Letzel, S M John, M Fartasch, T Brüning, A Seidler, S Dugas-Breit, M Gina, W Weistenhöfer, K Bachmann, I Bruhn, B M Lang, S Bonness, J P Allam, W Grobe, T Stange, S Westerhausen, P Knuschke, M Wittlich, T L Diepgen, Thomas Bieber, Richard Brans, Beate Brecht, Stephan Grabbe, Denise Küster, Linda Ruppert, Victoria Stephan, Anja Thielitz, Elisabeth Zimmermann
BACKGROUND: Squamous cell carcinoma (SCC) is among the most frequent types of cancer constituting a significant public health burden. Prevention strategies focus on limiting UV-exposure during leisure time. However, the relative impact of occupational and non-occupational UV-exposure for SCC occurrence is unclear. OBJECTIVES: To investigate the association between occupational and non-occupational UV-exposure with SCC in a multicenter population-based case-control study hypothesizing that high occupational UV-exposure increases the risk for SCC...
August 27, 2017: British Journal of Dermatology
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