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(Skin metastasis) melanoma

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https://www.readbyqxmd.com/read/30218634/the-vascular-morphology-of-melanoma-is-related-to-breslow-index-an-in-vivo-study-with-dynamic-optical-coherence-tomography
#1
N De Carvalho, J Welzel, S Schuh, L Themstrup, M Ulrich, G B E Jemec, J Holmes, S Kaleci, J Chester, L Bigi, S Ciardo, G Pellacani
BACKGROUND: Malignant melanoma is an aggressive skin cancer, which can lead to metastasis development. Vascularization enhancement is fundamental for tumor growth, worsening the prognosis. Dynamic Optical Coherence Tomography (D-OCT) enables the in vivo evaluation of vascular patterns in skin lesions. OBJECTIVE: In vivo evaluation of the melanoma vessel morphology by means of D-OCT and correlation with Breslow index. METHODS: Retrospective analysis of histologically proven melanomas, evaluated by D-OCT at three different depths (150, 300 and 500 μm) was performed...
September 15, 2018: Experimental Dermatology
https://www.readbyqxmd.com/read/30216200/expression-and-clinical-significance-of-s100-family-genes-in-patients-with-melanoma
#2
Xiong Tingfeng, Pan Fuqiang, Li Dong
Genes in the S100 family are abnormally expressed in a variety of tumor cells and are associated with clinical pathology, but their prognostic value in melanoma patients has not yet been fully elucidated. In this study, we extracted and profiled S100 family mRNA expression data and corresponding clinical data from the Gene Expression Omnibus database to analyze how expression of these genes correlates with clinical pathology. Compared with normal skin, S100A1, S100A13, and S100B were expressed at significantly higher levels in melanoma samples...
September 13, 2018: Melanoma Research
https://www.readbyqxmd.com/read/30186583/multiple-subcutaneous-nodules-leading-to-diagnosis-of-colon-cancer
#3
Irappa Madabhavi, Nagaveni Kadakol, Chidanand Chavan, Malay Sarkar
Skin metastases from colorectal carcinoma are rare and signal advanced disease. Skin metastasis refers to growth of cancer cells in the skin originating from an internal cancer. In most cases, cutaneous metastasis develops after the initial diagnosis of the primary internal malignancy and late in the course of the disease. In very rare cases, skin metastasis may occur at the same time or before the primary cancer has been discovered and may be the prompt for further thorough investigation. The incidence of skin metastasis varies but is somewhere between 3-10% in patients with a primary malignant tumor...
July 2018: Middle East Journal of Digestive Diseases
https://www.readbyqxmd.com/read/30179611/the-advent-of-oncolytic-virotherapy-in-oncology-the-rigvir%C3%A2-story
#4
Pēteris Alberts, Andra Tilgase, Agnija Rasa, Katrīna Bandere, Dite Venskus
Oncolytic viruses are a fast-developing cancer treatment field. Numerous viruses have been tested in clinical trials and three are approved. The first, Rigvir, is an immunomodulator with anti-tumour effect for treatment of melanoma, local treatment of skin and subcutaneous metastases of melanoma, for prevention of relapse and metastasis after radical surgery registered in Latvia, Georgia, Armenia and Uzbekistan. The aim of the present review is to summarize the development of Rigvir. Approximately 60 viruses were screened preclinically...
September 1, 2018: European Journal of Pharmacology
https://www.readbyqxmd.com/read/30171604/palpebral-cutaneous-melanomas-a-review-of-17-cases-from-a-tertiary-center
#5
Faruk Tas, Kayhan Erturk
BACKGROUND: Melanomas arising from eyelid skin are exceptionally rare, accounting for <1% of eyelid malignancies and all cutaneous melanomas. The aim of this study was to identify the histopathological features and clinical behaviors of the palpebral skin melanoma patients from a single tertiary institution. PATIENTS AND METHODS: Seventeen Caucasian patients diagnosed with eyelid cutaneous melanoma were analyzed retrospectively. RESULTS: The median age of patients was 59 years, and females were predominant (n = 11)...
August 31, 2018: International Journal of Dermatology
https://www.readbyqxmd.com/read/30159123/stromal-cd38-regulates-outgrowth-of-primary-melanoma-and-generation-of-spontaneous-metastasis
#6
Bar Ben Baruch, Eran Blacher, Einav Mantsur, Hila Schwartz, Hananya Vaknine, Neta Erez, Reuven Stein
The outgrowth of primary melanoma, the deadliest skin cancer, and generation of metastasis is supported by the tumor microenvironment (TME) which includes non-cancerous cells. Since the TME plays an important role in melanoma pathogenesis, its targeting is a promising therapeutic approach. Thus, it is important to identify proteins in the melanoma TME that may serve as therapeutic targets. Here we show that the nicotinamide adenine dinucleotide glycohydrolase CD38 is a suitable target for this purpose. Loss of CD38 in the TME as well as inhibition of its enzymatic activity restrained outgrowth of primary melanoma generated by two transplantable models of melanoma, B16F10 and Ret-mCherry-sorted (RMS) melanoma cells...
August 7, 2018: Oncotarget
https://www.readbyqxmd.com/read/30151286/a-case-of-gastric-metastatic-melanoma-15-years-after-the-initial-diagnosis-of-cutaneous-melanoma
#7
Sohail Farshad, Scott Keeney, Alexandra Halalau, Gehad Ghaith
Melanoma is the most common cancer to metastasize to the gastrointestinal tract; however, metastasis to the stomach is a rare occurrence. We present the case of a patient with a history of melanoma of the chest wall 15 years prior to presentation who initially presented to the hospital with sepsis but was later found to have metastatic melanoma in the gastric cardia. This case illustrates the rare occurrence of metastatic melanoma to the stomach which occurred 15 years after the initial skin diagnosis of melanoma was made, its endoscopic appearance, and how the nonspecific symptoms frequently lead to a delayed diagnosis or one that is not made at all until after autopsy...
2018: Case Reports in Gastrointestinal Medicine
https://www.readbyqxmd.com/read/30131413/primary-amelanotic-malignant-melanoma-of-cervix-masquerading-as-squamous-cell-carcinoma-presenting-with-extensive-metastases
#8
Pallavi Srivastava, Satyajeet Rath, Rahat Hadi, Nuzhat Husain
Amelanotic melanoma of cervix is a rare and aggressive neoplasm and only few cases have been reported in the literature. We report a rare case of an amelanotic melanoma of the uterine cervix with extensive metastases and multiple subcutaneous nodules. Due to the unusual site and amelanotic nature of the lesion, chances of misdiagnosis are high and immunohistochemical markers for melanoma help establish the diagnosis. The possibility of metastasis from a primary malignant melanoma of the skin needs to be ruled out...
August 20, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/30122899/sinomenine-inhibits-the-growth-of-melanoma-by-enhancement-of-autophagy-via-pi3k-akt-mtor-inhibition
#9
Zheng Sun, Lingling Zheng, Xujun Liu, Wenlong Xing, Xinhai Liu
Background: Melanoma is a common skin tumor in adults with high metastasis and mortality rates. Thus, finding a better effective approach to treat melanoma has become very urgent. Sinomenine (SIN), the major active compound of Sinomenium acutum , has shown antitumorigenic activities in certain cancers. However, its role in melanoma remains unclear. Purpose: This study aimed to explore the effects of SIN on melanoma in vitro and in vivo, in addition to exploring the underlying mechanism...
2018: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/30112032/mist1-regulates-snai1-and-acts-through-the-pten-akt-signaling-axis-to-promote-anoikisresistance-in-human-melanoma-cells
#10
Yiju Lee, Weifeng Yao, Chunjun Yang, Yunrui Li, Haiyang Ni, Lei Wang, Bin Ji, Yongge Gu, Sen Yang
Cutaneous malignant melanoma (CMM) is one of the most dangerous types of skin cancer. The prognosis of CMM patients with ulcers, regional lymph node metastasis or organ metastasis is poor. In this process, resistance to anoikis is a critical step in tumor cell metastasis. Tumor cells survive in the vascular and lymphatic system through the escape of anoikis to finally form clones in the distal tissue. The present study revealed that muscle intestine and stomach expression 1 (MIST1), a secreting cell-restricted transcription factor, was overexpressed in melanoma cells...
August 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/30104884/linc00888-promoted-tumorigenicity-of-melanoma-via-mir-126-crk-signaling-axis
#11
Wei Lu, Xiaohua Tao, Yibin Fan, Yi Tang, Xin Xu, Shasha Fan, Youming Huang, Yong Yu, Dan Luo
Objectives: Melanoma is an aggressive skin cancer. Understanding the underlying mechanisms for melanomagenesis and identification of novel and effective melanoma treatment strategies are urgently necessary. The long-noncoding RNAs are considered as new essential players during cancer development, including the melanoma. Materials and methods: In this study, we first determined the expression of LINC00888 in tumor tissues and adjacent normal tissues from 28 patients with melanoma using quantitative polymerase chain reaction, and the correlation between the expression level of LINC00888 and the survival months was also examined...
2018: OncoTargets and Therapy
https://www.readbyqxmd.com/read/30104528/berberine-inhibits-human-melanoma-a375-s2-cell-migration-and-invasion-via-affecting-the-fak-upa-and-nf-%C3%AE%C2%BAb-signaling-pathways-and-inhibits-plx4032-resistant-a375-s2-cell-migration-in-vitro
#12
Jia-Fang Liu, Kuang Chi Lai, Shu-Fen Peng, Pornsuda Maraming, Yi-Ping Huang, An-Cheng Huang, Fu-Shin Chueh, Wen-Wen Huang, Jing-Gung Chung
Many studies have demonstrated that berberine inhibited the cell migration and invasion in human cancer cell lines. However, the exact molecular mechanism of berberine inhibiting the cell migration and invasion of human melanoma A375.S2 and A375.S2/PLX (PLX4032 induced resistant A375.S2) skin cancer cells remains unknown. In this study, we investigated the anti-metastasis mechanisms of berberine in human melanoma cancer A375.S2 cells and A375.S2/PLX resistant cells in vitro. Berberine at low concentrations (0, 1, 1...
August 13, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/30083351/cutaneous-squamous-carcinoma-in-a-patient-with-diabetic-foot-an-unusual-evolution-of-a-frequent-complication
#13
Alessandro Mantovani, Ilaria Teobaldi, Vincenzo Stoico, Fabrizia Perrone, Marina Zannoni, Luca Cima, Massimiliano Bruti, Lucia Mingolla, Maddalena Trombetta, Enzo Bonora
After basal cell carcinoma, the cutaneous squamous cell carcinoma (cSCC) is the second most frequent non-melanoma skin cancer worldwide, and, classically, arises from the upper coats of the epidermis of sun-exposed areas or from skin areas constantly exposed to a chronic inflammatory stimulus. The occurrence of cSCC seems to be linked to several factors, including exposure to sunlight (or other ultraviolet radiations), immunosuppression, chronic scarring conditions and some familial cancer syndromes. Although the majority of cSCCs are adequately eradicated by surgical excision, a subgroup of cSCC may be linked with an increased risk of recurrence, metastasis and death...
2018: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/30037646/murine-models-of-melanoma
#14
REVIEW
Jasmine Saleh
Melanoma is an aggressive and highly metastatic skin cancer, carrying a poor prognosis with a median survival time of 5.3-10 months depending on the stage of disease. Research has advanced our understanding of the underlying pathology of melanoma and strategies to prevent and treat melanoma. Mouse models have been developed to elucidate the molecular, immunological, and cellular mechanisms contributing to proliferation and metastasis of melanoma. This review article aims to provide an overview of various types of murine melanoma models, including xenograft and syngeneic transplantation models, genetically modified models, ultraviolent radiation models, and chemically induced models, and discuss the advantages and limitations of each model...
September 2018: Pathology, Research and Practice
https://www.readbyqxmd.com/read/30026332/targeting-usp7-identifies-a-metastasis-competent-state-within-bone-marrow-resident-melanoma-ctcs
#15
Monika Vishnoi, Debasish Boral, Haowen Liu, Marc L Sprouse, Wei Yin, Debalina Goswami-Sewell, Michael T Tetzlaff, Michael A Davies, Isabella C Glitza Oliva, Dario Marchetti
Systemic metastasis is the major cause of death from melanoma, the most lethal form of skin cancer. Although most patients with melanoma exhibit a substantial gap between onset of primary and metastatic tumors, signaling mechanisms implicated in the period of metastatic latency remain unclear. We hypothesized that melanoma circulating tumor cells (CTC) home to and reside in the bone marrow during the asymptomatic phase of disease progression. Using a strategy to deplete normal cell lineages (Lin- ), we isolated CTC-enriched cell populations from the blood of patients with metastatic melanoma, verified by the presence of putative CTCs characterized by melanoma-specific biomarkers and upregulated gene transcripts involved in cell survival and prodevelopment functions...
September 15, 2018: Cancer Research
https://www.readbyqxmd.com/read/30013664/clinicopathological-characteristics-of-malignant-melanomas-of-the-skin-and-gastrointestinal-tract
#16
Michiko Akiyama, Yoko Matsuda, Tomio Arai, Hidehisa Saeki
The present study examined the differences between gastrointestinal melanoma (GM) and skin melanoma (SM). The clinicopathological characteristics, the expression of melanoma stem cell markers nestin, sex determining region Y-box 2 and ATP-binding cassette sub-family B member 5, and the presence of the BRAFV600E mutation were evaluated in 10 cases of GM and 31 cases of SM. Patients with GM had an increased mean age compared with those with SM (76 vs. 68 years). In addition, GMs were significantly more likely than SMs to be amelanotic (50 vs...
August 2018: Oncology Letters
https://www.readbyqxmd.com/read/30008656/intramedullary-spinal-cord-metastasis-from-malignant-melanoma-a-case-report-of-a-central-nervous-system-secondary-lesion-occurred-15-years-after-the-primary-skin-lesion-resection
#17
Maciej Śniegocki, Agnieszka Nowacka, Wojciech Smuczyński, Kamila Woźniak
No abstract text is available yet for this article.
June 2018: Postȩpy Dermatologii i Alergologii
https://www.readbyqxmd.com/read/29998149/the-value-of-technetium-99m-labeled-alpha-melanocyte-stimulating-hormone-99m-tc-%C3%AE-msh-in-diagnosis-of-primary-and-metastatic-lesions-of-malignant-melanoma
#18
Saeed Farzanefar, Rahman Etemadi, Mohammad Shirkhoda, Habibollah Mahmoodzadeh, Mostafa Erfani, Babak Fallahi, Mehrshad Abbasi, Narjess Ayati, Arman Hassanzadeh-Rad, Mohammad Eftekhari, Davood Beiki
Objectives: Malignant melanoma is the most lethal type of skin cancers with unfavorable prognosis. Alpha-MSH peptide analogues have a high affinity for melanocortine-1 (MC1) receptors on melanocytes over expressing in malignant melanoma cells. Pre-clinical studies have shown promising results for radiolabeled MSH imaging in this malignancy. The purpose of this study is to assess the diagnostic value of 99m Tc-α-MSH imaging in malignant melanoma. Methods: Twenty-one patients (13 men) with pathologically confirmed malignant melanoma with or without metastatic distribution were included in this study...
2018: Asia Oceania Journal of Nuclear Medicine & Biology
https://www.readbyqxmd.com/read/29975041/a-fluorescent-probe-for-early-detection-of-melanoma-and-its-metastasis-by-specifically-imaging-tyrosinase-activity-in-a-mouse-model
#19
Chenyue Zhan, Jiatian Cheng, Bowen Li, Shuailing Huang, Fang Zeng, Shuizhu Wu
Melanoma is a type of highly malignant and metastatic skin cancer, and early detection of melanoma by analyzing the level of its biomarker may decrease the likelihood of mortality. In this study, a fluorescent probe called NBR-AP for detecting tyrosinase (a biomarker of melanoma) has been created by incorporating a hydroxyphenylurea group (as a substrate for the enzyme) onto a fluorescent dye phenoxazine derivative (as an activatable signal reporter). This probe can be activated to generate fluorescence through a tyrosinase-mediated oxidation followed by hydrolysis of the urea linkage...
August 7, 2018: Analytical Chemistry
https://www.readbyqxmd.com/read/29959090/dermal-delivery-of-fe-chlorophyllin-via-ultradeformable-nanovesicles-for-photodynamic-therapy-in-melanoma-animal-model
#20
Mai Rady, Iman Gomaa, Nagia Afifi, Mahmoud Abdel-Kader
Melanoma is resistant to chemotherapeutics with poor prognosis and high potential of metastasis. Photodynamic therapy (PDT) represents a localized therapeutic modality, as cytotoxicity occurs when light activates photosensitizer (PS) at the tumour site. The aim of this study is dermal delivery of a high molecular weight hydrophilic photosensitizer (PS), ferrous chlorophyllin (Fe-CHL) via transethosomes for treatment of melanoma by PDT. Transethosomes were made of phosphatidyl choline, edge activator and 20% w/v Ethanol...
September 5, 2018: International Journal of Pharmaceutics
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