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https://www.readbyqxmd.com/read/29429153/cancer-prevention-with-green-tea-and-its-principal-constituent-egcg-from-early-investigations-to-current-focus-on-human-cancer-stem-cells
#1
Hirota Fujiki, Tatsuro Watanabe, Eisaburo Sueoka, Anchalee Rawangkan, Masami Suganuma
Cancer preventive activities of green tea and its main constituent, (-)-epigallocatechin gallate (EGCG) have been extensively studied by scientists all over the world. Since 1983, we have studied the cancer chemopreventive effects of EGCG as well as green tea extract and underlying molecular mechanisms. The first part of this review summarizes groundbreaking topics with EGCG and green tea extract: 1) Delayed cancer onset as revealed by a 10-year prospective cohort study, 2) Prevention of colorectal adenoma recurrence by a double-blind randomized clinical phase II trial, 3) Inhibition of metastasis of B16 melanoma cells to the lungs of mice, 4) Increase in the average value of Young's moduli, i...
January 31, 2018: Molecules and Cells
https://www.readbyqxmd.com/read/29415335/high-density-of-m2-macrophages-in-acral-lentiginous-melanoma-compared-to-superficial-spreading-melanoma
#2
M Zúñiga-Castillo, N V Pereira, M N Sotto
AIMS: Acral lentiginous melanoma (ALM) is the most common type of melanoma in people with darker skin phototypes. There is some evidences that the etiology, pathogenesis, risk factors, and natural history of ALM differ from those of superficial spreading melanoma (SSM). ALM behaves more aggressively than SSM, but the biological explanation for these differences remains unknown. The presence of one subtype of macrophages, termed M2-macrophage (M2-M), has been found to be related to local progression, metastasis, and poor prognosis in several neoplasms...
February 7, 2018: Histopathology
https://www.readbyqxmd.com/read/29405038/systemic-treatments-for-metastatic-cutaneous-melanoma
#3
REVIEW
Sandro Pasquali, Andreas V Hadjinicolaou, Vanna Chiarion Sileni, Carlo Riccardo Rossi, Simone Mocellin
BACKGROUND: The prognosis of people with metastatic cutaneous melanoma, a skin cancer, is generally poor. Recently, new classes of drugs (e.g. immune checkpoint inhibitors and small-molecule targeted drugs) have significantly improved patient prognosis, which has drastically changed the landscape of melanoma therapeutic management. This is an update of a Cochrane Review published in 2000. OBJECTIVES: To assess the beneficial and harmful effects of systemic treatments for metastatic cutaneous melanoma...
February 6, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29397746/solid-in-oil-peptide-nanocarriers-for-transcutaneous-cancer-vaccine-delivery-against-melanoma
#4
Rie Wakabayashi, Masato Sakuragi, Shuto Kozaka, Yoshiro Tahara, Noriho Kamiya, Masahiro Goto
Cancer vaccines represent a prophylactic or therapeutic method of suppressing cancer by activating the adaptive immune system. The immune response is initiated by the delivery of tumor antigens to antigen presenting cells (APCs). The use of peptides, as vaccine antigens, is advantageous especially in the availability and productivity of pure and defined antigens. However, their limited immunogenicity remains a major drawback and therefore the utilization of nanocarriers as a means of delivering antigens to target cells and/or the addition of immune stimulants have been investigated as an efficient peptide-based cancer vaccine...
February 5, 2018: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/29388568/salinomycin-loaded-lipid-polymer-nanoparticles-with-anti-cd20-aptamers-selectively-suppress-human-cd20-melanoma-stem-cells
#5
Yi-Bin Zeng, Zuo-Chong Yu, Yan-Ni He, Tong Zhang, Ling-Bo Du, Yin-Mei Dong, Huai-Wen Chen, Ying-Ying Zhang, Wu-Qing Wang
Melanoma is the deadliest type of skin cancer. CD20+ melanoma stem cells (CSCs) are pivotal for metastasis and initiation of melanoma. Therefore, selective elimination of CD20+ melanoma CSCs represents an effective treatment to eradicate melanoma. Salinomycin has emerged as an effective drug toward various CSCs. Due to its poor solubility, its therapeutic efficacy against melanoma CSCs has never been evaluated. In order to target CD20+ melanoma CSCs, we designed salinomycin-loaded lipid-polymer nanoparticles with anti-CD20 aptamers (CD20-SA-NPs)...
February 2018: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29377892/network-based-co-expression-analysis-for-exploring-the-potential-diagnostic-biomarkers-of-metastatic-melanoma
#6
Li-Xin Wang, Yang Li, Guan-Zhi Chen
Metastatic melanoma is an aggressive skin cancer and is one of the global malignancies with high mortality and morbidity. It is essential to identify and verify diagnostic biomarkers of early metastatic melanoma. Previous studies have systematically assessed protein biomarkers and mRNA-based expression characteristics. However, molecular markers for the early diagnosis of metastatic melanoma have not been identified. To explore potential regulatory targets, we have analyzed the gene microarray expression profiles of malignant melanoma samples by co-expression analysis based on the network approach...
2018: PloS One
https://www.readbyqxmd.com/read/29374701/hmga1-and-mmp-11-are-overexpressed-in-human-non-melanoma-skin-cancer
#7
Manfredi Greco, Biagio Arcidiacono, Eusebio Chiefari, Tiziana Vitagliano, Antonio Greto Ciriaco, Francesco Saverio Brunetti, Giovanni Cuda, Antonio Brunetti
BACKGROUND/AIM: The High-Mobility Group A1 (HMGA1) protein has been implicated in human malignancies, playing an important role in cancer proliferation, angiogenesis and metastasis. Increased HMGA1 expression has been found in skin mouse tumors, whereas Hmga1-null mice were protected against skin carcinogenesis. Here, we examined the expression of HMGA1 in human skin tumors, squamous cell carcinoma and basal cell carcinoma. MATERIALS AND METHODS: Tumor and normal skin tissues from 15 affected patients were surgically excised, and mRNA and protein extraction was performed...
February 2018: Anticancer Research
https://www.readbyqxmd.com/read/29370558/pim-3-enhances-melanoma-cell-migration-and-invasion-by-promoting-stat3-phosphorylation
#8
Jing Liu, Xinyu Qu, Liwei Shao, Yuan Hu, Xin Yu, Peixiang Lan, Qie Guo, Qiuju Han, Jian Zhang, Cai Zhang
Melanoma is the deadliest form of commonly encountered skin cancer, and has fast propagating and highly invasive characteristics. Pim-3, a highly expressed oncogene in melanoma, is a highly conserved serine/threonine kinase with various biological activities, such as proliferation-accelerating and anti-apoptosis effects on cancer progression. However, whether Pim-3 regulates melanoma metastasis has not been determined. Here, we constructed a Pim-3-silencing short hairpin RNA (sh-Pim-3), a TLR7-stimulating ssRNA and a dual-function vector containing a sh-Pim-3 and a ssRNA, and transfected them into the B16F10 melanoma cell line to investigate the effects of Pim-3 on migration and invasion in melanoma...
January 25, 2018: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/29360813/development-and-validation-of-a-plasma-based-melanoma-biomarker-suitable-for-clinical-use
#9
Ryan Van Laar, Mitchel Lincoln, Barton Van Laar
BACKGROUND: In Australia, more money is spent on skin cancer than any other malignancy. Despite this, the mortality rate of melanoma, the deadliest form, has steadily increased over the past 50 years. Diagnostic imprecision and a lack of complimentary molecular biomarkers are partially responsible for this lack of progress. METHODS: Whole-microRNAome profiling was performed on plasma samples from 32 patients with histologically confirmed melanoma and 16 normal controls...
January 23, 2018: British Journal of Cancer
https://www.readbyqxmd.com/read/29348670/intradermal-delivery-of-stat3-sirna-to-treat-melanoma-via-dissolving-microneedles
#10
Jingtong Pan, Wenyi Ruan, Mengyao Qin, Yueming Long, Tao Wan, Kaiyue Yu, Yuanhao Zhai, Chuanbin Wu, Yuehong Xu
Hyperactivity of signal transducer and activity of transcription 3 (STAT3) plays a crucial role in melanoma invasion and metastasis. Gene therapy applying siRNA targeting STAT3 is a potential therapeutic strategy for melanoma. In this article, we first fabricated safe and novel dissolving microneedles (MNs) for topical application of STAT3 siRNA to enhance the skin penetration of siRNA and used polyethylenimine (PEI, 25 kDa) as carrier to improve cellular uptake of siRNA. The results showed that MNs can effectively penetrate skin and rapidly dissolve in the skin...
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29337932/high-number-of-circulating-tumor-cells-predicts-poor-survival-of-cutaneous-melanoma-patients-in-china
#11
Jisen Li, Wenhua Fu, Wei Zhang, Peng Li
BACKGROUND Melanoma is an aggressive cancer with complex etiology and poor prognosis. Surgical resection is still the primary treatment of melanoma, but shows limited efficacy in late-stage patients. Additionally, reliable prognostic markers of skin melanoma patients are still lacking. Circulating tumor cells (CTCs) have shown promise in predicting prognosis of multiple cancers. Evaluating the prognostic value of CTC number in melanoma patients. MATERIAL AND METHODS CTCs were isolated by immunomagnetic capture from 7...
January 16, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29330296/tumor-progression-is-mediated-by-thymosin-%C3%A3-4-through-a-tgf%C3%A3-mrtf-signaling-axis
#12
Tsuyoshi Morita, Kenichiro Hayashi
Although enhanced thymosin beta-ß4 (TMSBX4/Tß4) expression is associated with tumor progression and metastasis, its tumor-promoting functions remain largely unknown. Here it is demonstrated that transforming growth factor beta (TGFß) facilitates Tß4 expression and leads to the activation of myocardin-related transcription factors (MRTFs), which are co-activators of serum response factor (SRF) and regulate the expression of genes critical for the epithelial-mesenchymal transition (EMT) and tumor metastasis...
January 12, 2018: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/29289416/lymphatic-transit-rate-as-a-predictive-parameter-for-nodal-metastasis-in-primary-limb-malignant-melanoma
#13
Masao Fujiwara, Takahiro Suzuki, Akira Kasuya, Takatoshi Shimauchi, Hidekazu Fukamizu, Yoshiki Tokura
BACKGROUND: The status of sentinel lymph node (SLN) is one of the most predictive prognostic factors in patients with clinically localized malignant melanomas (MMs). However, since the positive SLN metastatic rate is as low as 20%, it is desirable to minimize SLN biopsy performance with imaging. By dynamic lymphoscintigraphy, we have proposed the lymphatic transit rate (LTR), the value that the distance between the primary lesion and SLN is divided by scintigraphic saturation time. LTR represents the scintigraphic saturation velocity and can be used for evaluation of metastasis of skin cancers...
December 24, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/29286144/effect-of-long-non-coding-rna-pvt1-on-cell-proliferation-and-migration-in-melanoma
#14
Lamei Chen, Dongmei Ma, Yuanyuan Li, Xiaoying Li, Lei Zhao, Jing Zhang, Yali Song
The present study aimed to investigate the potential role of the long non‑coding RNA (lncRNA) Pvt1 oncogene (non‑protein coding) (PVT1) in the progression and metastasis of malignant melanoma, and to reveal its possible molecular mechanisms. The expression of lncRNA PVT1 in melanoma tissues and adjacent normal skin from patients with melanoma, and in the melanoma A‑375 and sk‑mel‑5 cell lines, was analyzed using reverse transcription‑quantitative polymerase chain reaction and western blot analyses...
December 20, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29285197/correlation-of-telomere-length-to-malignancy-potential-in-non-melanoma-skin-cancers
#15
Hanae Yamada-Hishida, Yoshimasa Nobeyama, Hidemi Nakagawa
Telomeres are associated with cell fate and aging through their role in the cellular response to stress and growth stimulation resulting from previous cell divisions and DNA damage. Telomere shortening has been observed in most human cancers, and is known to be a feature of malignancy. The aim of this study is to clarify whether telomere length is related to the malignant potential of non-melanoma skin cancers. Telomere length was analyzed using tissue quantitative fluorescence in situ hybridization in 36 non-melanoma skin cancers including basal cell carcinoma (BCC), squamous cell carcinoma (SCC), Bowen's disease (BD) and actinic keratosis (AK), and also in 26 samples of normal-appearing epidermal tissue surrounding or located close to each tumor...
January 2018: Oncology Letters
https://www.readbyqxmd.com/read/29250646/timps-expression-in-lentigo-maligna%C3%A3-lentigo-maligna-melanoma-versus-aged-skin-a-review-of-the-literature-and-personal-experience
#16
Alice Brînzea, Roxana Ioana Nedelcu, Gabriela Turcu, Mihaela Antohe, Sabina Andrada Zurac, Daniela Adriana Ion
Mechanisms involved in melanoma invasiveness and metastasis are essential to understanding the behavior of this aggressive melanocytic skin cancer. The epithelial-mesenchymal transition (EMT) is considered fundamental for overcoming the in situ stage of melanoma and its proliferation beyond the basal membrane. Matrix metalloproteinases (MMPs) and their tissue inhibitors (TIMPs) are key molecules involved in EMT about whose expression in lentigo maligna (LM) and lentigo maligna melanoma (LMM) little has been studied so far...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/29240580/prognostic-significance-of-periadnexal-extension-in-cutaneous-melanoma-and-its-implications-for-pathologic-reporting-and-staging
#17
Tristan J Dodds, Serigne Lo, Louise Jackett, Omgo Nieweg, John F Thompson, Richard A Scolyer
Tumor thickness is the strongest predictor of outcome for clinically localized melanoma. Therefore, accurate assessment is critical for appropriate staging, reliable estimation of prognosis, and management. When melanoma extends alongside skin adnexal structures more deeply than the main tumor mass (periadnexal extension), it is currently unknown whether the prognosis is more accurately reflected by the deepest point of periadnexal tumor extension or the main tumor mass. This study sought to address this question...
December 7, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29231248/slurp-1-is-mutated-in-mal-de-meleda-a-potential-molecular-signature-for-melanoma-and-a-putative-squamous-lineage-tumor-suppressor-gene
#18
Christina Bergqvist, Humam Kadara, Lamiaa Hamie, Georges Nemer, Remi Safi, Mirna Karouni, Nadine Marrouche, Ossama Abbas, Divina J Hasbani, Abdul G Kibbi, Dany Nassar, Yutaka Shimomura, Mazen Kurban
BACKGROUND: Mal de Meleda (MDM) is a rare inherited autosomal recessive genodermatosis characterized by palmoplantar keratoderma (PPK) with transgrediens and caused by mutations in the SLURP1 gene. Uncommonly, cutaneous tumors have been found at PPK sites in MDM patients. OBJECTIVE: To study a Middle Eastern family with MDM with both PPK and skin tumors. METHODS: We studied a Middle Eastern (Palestinian) family with clinical features of MDM and cutaneous tumors...
December 12, 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/29227546/high-levels-of-extracellular-atp-lead-to-chronic-inflammatory-response-in-melanoma-patients
#19
Aline Manica, Alexsandra Da Silva, Andreia Machado Cardoso, Marcelo Moreno, Daniela B Leal, Anielen Dutra Da Silva, Maria Rosa Chitolina Schetinger, Vera Maria Morsch, Margarete Dulce Bagatini
Skin cancer represents a serious public health problem and melanoma is considered the most significant due to its high metastasis capacity. Evasion mechanisms are the main characteristic of these tumor cells to escape of immune response. Extracellular nucleotides and nucleosides play an important role in inflammatory and immune responses. In this study, we analyzed the expression and activity of purinergic system enzymes in platelets and lymphocytes, ATP levels quantification, as well the level of pro and anti-inflammatory interleukins in the serum of 23 patients with surgical melanoma removal (CM group) and 23 control subjects (CT group)...
December 11, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29221137/ev20-sap-a-novel-anti-her-3-antibody-drug-conjugate-displays-promising-antitumor-activity-in-melanoma
#20
Emily Capone, Francesco Giansanti, Sara Ponziani, Alessia Lamolinara, Manuela Iezzi, Annamaria Cimini, Francesco Angelucci, Rossana La Sorda, Vincenzo De Laurenzi, Pier Giorgio Natali, Rodolfo Ippoliti, Stefano Iacobelli, Gianluca Sala
Melanoma is the most biologically aggressive skin cancer of well established constitutive and induced resistance to pharmacological treatment. Despite the recent progresses in immunotherapies, many advanced metastatic melanoma patients still face a significant mortality risk. The aggressive nature of this disease sustains an urgent need for more successful, effective drugs. HER-3 - one of the four member of the tyrosin kinase epidermal growth factor receptors (EGFRs) family- is frequently overexpressed in solid tumors, including melanoma...
November 10, 2017: Oncotarget
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