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https://www.readbyqxmd.com/read/28545079/interleukin-like-emt-inducer-regulates-partial-phenotype-switching-in-mitf-low-melanoma-cell-lines
#1
Ken Noguchi, Annamarie C Dalton, Breege V Howley, Buckley J McCall, Akihiro Yoshida, J Alan Diehl, Philip H Howe
ILEI (FAM3C) is a secreted factor that contributes to the epithelial-to-mesenchymal transition (EMT), a cell biological process that confers metastatic properties to a tumor cell. Initially, we found that ILEI mRNA is highly expressed in melanoma metastases but not in primary tumors, suggesting that ILEI contributes to the malignant properties of melanoma. While melanoma is not an epithelial cell-derived tumor and does not undergo a traditional EMT, melanoma undergoes a similar process known as phenotype switching in which high (micropthalmia-related transcription factor) MITF expressing (MITF-high) proliferative cells switch to a low expressing (MITF-low) invasive state...
2017: PloS One
https://www.readbyqxmd.com/read/28543698/adoptive-t-cell-therapy-an-overview-of-obstacles-and-opportunities
#2
REVIEW
Erez Nissim Baruch, Amy Lauren Berg, Michal Judith Besser, Jacob Schachter, Gal Markel
The therapeutic potential of adoptive cell therapy (ACT) in cancer patients was first acknowledged 3 decades ago, but it was an esoteric approach at the time. In recent years, technological advancements have transformed ACT into a viable therapeutic option that can be curative in some patients. In fact, current ACT response rates are 80% to 90% for hematological malignancies and 30% for metastatic melanoma refractory to multiple lines of therapy. Although these results are encouraging, there is still much to be done to fulfill ACT's potential, specifically with regard to improving clinical efficacy, expanding clinical indications, reducing toxicity, and increasing production and cost-effectiveness...
June 1, 2017: Cancer
https://www.readbyqxmd.com/read/28543693/somatic-driver-mutations-in-melanoma
#3
REVIEW
Bobby Y Reddy, David M Miller, Hensin Tsao
Melanoma has one of the highest somatic mutational burdens among solid malignancies. Although the rapid progress in genomic research has contributed immensely to our understanding of the pathogenesis of melanoma, the clinical significance of the vast array of genomic alterations discovered by next-generation sequencing is far from being fully characterized. Most mutations prevalent in melanoma are simply neutral "passengers," which accompany functionally significant "drivers" under transforming conditions. The delineation of driver mutations from passenger mutations is critical to the development of targeted therapies...
June 1, 2017: Cancer
https://www.readbyqxmd.com/read/28543606/reflectance-confocal-microscopy-analysis-of-equivocal-melanocytic-lesions-with-severe-regression
#4
M Agozzino, A Ferrari, C Cota, C Franceschini, P Buccini, L Eibenshutz, M Ardigò
BACKGROUND: The differential diagnosis between regressing nevi and melanoma might be challenging; regressing areas can represent a confounding factor for the diagnosis and the histology still remain mandatory to rule out melanoma. Reflectance confocal microscopy may add valuable information by revealing features suggestive of the nature of the melanocytic proliferation. OBJECTIVE: To assess the impact of confocal microscopy in the management of regressive melanocytic lesions...
May 21, 2017: Skin Research and Technology
https://www.readbyqxmd.com/read/28543532/intraepidermal-merkel-cell-carcinoma-a-case-series-of-a-rare-entity-with-clinical-follow-up
#5
George Jour, Phyu P Aung, Eduardo Rozas-Muñoz, Johnathan L Curry, Victor Prieto, Doina Ivan
BACKGROUND: Merkel cell carcinoma (MCC) is a rare but aggressive cutaneous carcinoma. MCC involves typically dermis and although epidermotropism has been reported, MCC strictly intraepidermal or in situ (MCCIS) is exceedingly rare. Most of the cases of MCCIS described so far have associated other lesions, such as squamous or basal cell carcinoma, actinic keratosis, etc. Herein, we describe three patients with MCC strictly in situ, without a dermal component. METHODS: Our patients were elderly, two of the lesions involved the head and neck area and one was on a finger...
May 23, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28542862/subsequent-primary-malignancies-after-diffuse-large-b-cell-lymphoma-in-the-modern-treatment-era
#6
Li Tao, Christina A Clarke, Aaron S Rosenberg, Ranjana H Advani, Brian A Jonas, Christopher R Flowers, Theresa H M Keegan
With the addition of rituximab and other treatment advances, survival after diffuse large B-cell lymphoma (DLBCL) has improved, but subsequent primary malignancies (SPMs) have emerged as an important challenge for DLBCL survivorship. We calculated standardized incidence ratios (SIRs) and 95% confidence intervals (CIs) for SPMs among 23 879 patients who survived at least 1 year after a first primary DLBCL diagnosed during 1989-2012, compared to the general population in California. Cumulative incidence (CMI) of SPMs, accounting for the competing risk of death, also was calculated...
May 25, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28541267/choroidal-melanoma-sector-melanocytosis-and-retinal-pigment-epithelial-microdetachments-in-birt-hogg-dub%C3%A3-syndrome
#7
Charlotte L Marous, Molly R Marous, R Joel Welch, Jerry A Shields, Carol L Shields
PURPOSE: Birt-Hogg-Dubé Syndrome (BHDS) is a rare autosomal dominant condition that can predispose patients to numerous cutaneous fibrofolliculomas and other cutaneous lesions, pulmonary cysts with spontaneous pneumothorax, and multifocal renal tumors and cancer. The genetic mutations responsible for BHDS are related to tumor suppression and the mammalian target of rapamycin (mTOR) pathway. Previous reports of the ocular findings in BHDS include eyelid fibrofolliculomas, "flecked chorioretinopathy," and one report of choroidal melanoma...
May 22, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28540796/myoglobin-does-not-predict-local-toxicity-in-isolated-limb-perfusion
#8
Andreas Nyström Wendt, Jan Mattsson, Roger Olofsson Bagge
INTRODUCTION: Isolated limb perfusion (ILP) is a treatment option for patients with in-transit metastases of malignant melanoma in the extremities, as well as locally advanced sarcoma. ILP allows for a delivery of high-dose chemotherapy to an isolated extremity with minimal systemic toxicity. However, local toxicity like oedema, blistering, nerve damage and compartment syndrome can occur. Myoglobin measurements have been used as a screening method to predict the most severe cases of local toxicity...
April 10, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28538413/a-long-term-survivor-with-esophageal-melanoma-and-pulmonary-metastasis-after-single-stage-esophagectomy-and-lobectomy-case-report-and-literature-review
#9
Tian Zhao, Feng-Wei Kong, Heng Wang, Dong Liu, Chun-Ying Wang, Jin-Hua Luo, Miao Zhang, Wen-Bin Wu
RATIONALE: The optimal therapeutic regimen for primary malignant melanoma of the esophagus (PMME) need to be further elucidated. Besides, the efficacy of surgery for PMME with remote metastasis is uncertain for its rarity. PATIENT CONCERNS: Herein a previously healthy patient was admitted for dysphagia and fatigue, without significant weight loss. DIAGNOSES: The pathological and molecular tests revealed his diagnosis of BRAF-mutant, advanced PMME with localized pulmonary metastasis...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28537681/rlip76-silencing-inhibits-cell-proliferation-and-invasion-in-melanoma-cell-line-a375
#10
N Liu, C-H Du
OBJECTIVE: RLIP76 is a stress-responsive membrane protein regulating multiple cellular signaling pathways and is overexpressed in a number of malignant tumor cells. The aim of this study is to test whether the RLIP76 plays a critical role in cellular growth, apoptosis, cell cycle distribution and chemoresistance in melanoma. MATERIALS AND METHODS: In this study, human melanoma cell line A375 was stably transfected with an RLIP76-targeted shRNA-containing vector to investigate the role of RLIP76 in cellular function...
May 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28537538/-increasing-incidence-of-thin-melanomas-in-the-netherlands
#11
J Zoutendijk, R J T van der Leest, T Nijsten, W J Mooi, J I van der Rhee, E de Vries, L M Hollestein
OBJECTIVE: In the Netherlands the incidence of melanomas in situ and thin invasive melanomas is rising more quickly than that of thicker melanomas. Our aim was to gain insight into this increase and to test the hypothesis that it is attributable to over-diagnosis. METHOD: We analysed data taken from the Netherlands Cancer Registry on all primary melanomas diagnosed between 1994 and 2010. We assessed trends in European standardised rates (ESR) using joinpoint analysis, and expressed these trends as estimated annual percentage change (EAPC)...
2017: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/28537531/clinical-features-of-nivolumab-induced-thyroiditis-a-case-series-study
#12
Ichiro Yamauchi, Yoriko Sakane, Yorihide Fukuda, Toshihito Fujii, Daisuke Taura, Masakazu Hirata, Keisho Hirota, Yohei Ueda, Yugo Kanai, Yui Yamashita, Eri Kondo, Masakatsu Sone, Akihiro Yasoda, Nobuya Inagaki
BACKGROUND: The programmed cell death-1 (PD-1) pathway is a novel therapeutic target in immune checkpoint therapy for cancer. It consists of the PD-1 receptor and its two ligands, programmed death-ligand 1 (PD-L1) and programmed death-ligand 2 (PD-L2). Nivolumab is an anti-PD-1 monoclonal antibody approved for malignant melanoma, advanced non-small cell lung cancer, and advanced renal cell carcinoma in Japan. Thyrotoxicosis and hypothyroidism have both been reported in international phase 3 studies and national postmarketing surveillance of nivolumab in Japan...
May 24, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28536525/immune-checkpoint-in-glioblastoma-promising-and-challenging
#13
REVIEW
Jing Huang, Fangkun Liu, Zhixiong Liu, Hui Tang, Haishan Wu, Qianni Gong, Jindong Chen
Glioblastoma (GBM) is a severe malignant brain cancer with poor overall survival. Conventional intervention remains dismal to prevent recurrence and deterioration of GBM cell. Recent years have witnessed exciting breakthroughs in novel immune strategies, especially checkpoint inhibitors, some of which have become adjuvant setting after standard of care in melanoma. Several clinical trials of checkpoint inhibitors are ongoing in glioblastoma and other brain carcinomas. Plus, synergistic combinations of checkpoint inhibitors with conventional therapy strategies-radiotherapy, temozolomide, bevacizumab, and corticosteroids are now being exploited and applied in clinical settings...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28536353/the-continued-promise-and-many-disappointments-of-oncolytic-virotherapy-in-gastrointestinal-malignancies
#14
REVIEW
Daniel H Ahn, Tanios Bekaii-Saab
Oncolytic virotherapy represents a novel therapeutic strategy in the treatment of gastrointestinal malignancies. Oncolytic viruses, including genetically engineered and naturally occurring viruses, can selectively replicate in and induce tumor cell apoptosis without harming normal tissues, thus offering a promising tool in the armamentarium for cancer therapy. While this approach has garnered much interest over the past several decades, there has not been significant headway across various tumor types. The recent approval of talimogene laherparepvec, a second-generation oncolytic herpes simplex virus type-1, for the treatment of metastatic melanoma, confirms the therapeutic potential of oncolytic viral therapy...
March 4, 2017: Biomedicines
https://www.readbyqxmd.com/read/28535963/usefulness-of-11-c-methionine-pet-for-predicting-the-efficacy-of-carbon-ion-radiation-therapy-for-head-and-neck-mucosal-malignant-melanoma
#15
M Hasebe, K Yoshikawa, R Nishii, K Kawaguchi, T Kamada, Y Hamada
The aim of this study was to determine whether l-methyl-[(11)C]-methionine (MET) positron emission tomography (PET) allows the prediction of outcomes in patients with head and neck mucosal malignant melanoma treated with carbon ion radiation therapy (CIRT). This was a retrospective cohort study involving 85 patients who underwent a MET-PET or MET-PET/computed tomography (CT) examination before and after CIRT. MET uptake in the tumour was evaluated semi-quantitatively using the tumour-to-normal tissue ratio (TNR)...
May 20, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28535001/standardization-of-a375-human-melanoma-models-on-chicken-embryo-chorioallantoic-membrane-and-balb-c-nude-mice
#16
Stefana Avram, Dorina-Elena Coricovac, Ioana Zinuca Pavel, Iulia Pinzaru, Roxana Ghiulai, Flavia Baderca, Codruta Soica, Danina Muntean, Daciana E Branisteanu, Demetrios A Spandidos, Aristides M Tsatsakis, Cristina Adriana Dehelean
Cutaneous melanoma is a metastatic disease characterized by high resistance to treatment, the incidence of which has alarmingly increased worldwide over the past years. A thorough characterization of tumor onset, progression and metastasis is compulsory to overcome the gaps existent in melanoma biology. The present study suggests a well‑established protocol and a detailed histological description of human melanoma models in ovo and in vivo obtained by the inoculation of A375 cells to chick embryo chorioallantoic membrane (CAM) and Balb/c nude mice...
May 22, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28534378/secondary-malignant-tumors-of-the-parotid-gland-not-a-secondary-problem
#17
Antonio Pastore, Andrea Ciorba, Marco Soliani, Andrea Di Laora, Giorgia Valpiani, Chiara Bianchini, Francesco Stomeo, Roberto Merlo, Stefano Pelucchi
PURPOSE: To present the clinical features of patients with parotid gland metastasis, and compare the results with previously published series. Most of the relevant literature arises from case reports, while there are only few series reported, as secondary neoplastic lesions of the parotid gland are uncommon. METHODS: The medical records of patients with parotid gland metastasis, treated at the ENT Department of the University Hospital of Ferrara, between January 1st 1965 and December 31th 2014, were retrospectively reviewed...
March 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28533998/ipilimumab-as-a-cause-of-severe-pan-colitis-and-colonic-perforation
#18
Raj Shah, Danielle Witt, Talal Asif, Fahad F Mir
Ipilimumab is a human monoclonal antibody that functions as a cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4) inhibitor that is used to treat malignant melanoma. Due to ipilimumab's removal of immune regulation, specifically through the inactivation of CTLA-4, it is commonly associated with inflammatory and autoimmune events. Gastrointestinal (GI) related immune-related adverse events such as diarrhea occur in 29% of patients with 7.6% of patients specifically suffering from colitis. We describe a case of colonic perforation with ipilimumab use...
April 20, 2017: Curēus
https://www.readbyqxmd.com/read/28533636/comparison-of-spect-ct-and-planar-lympho-scintigraphy-in-sentinel-node-biopsies-of-oral-cavity-squamous-cell-carcinomas
#19
Piyush Chandra, Sanket Dhake, Sneha Shah, Archi Agrawal, Nilendu Purandare, Venkatesh Rangarajan
INTRODUCTION: Evidence supporting the use of Sentinel node biopsy (SNB) for nodal staging of early oral squamous cell carcinomas (OSCC) appears to be very promising. Pre-operative lymphatic mapping using planar lymphoscinitigraphy (PL) with or without SPECT/CT in the SNB procedure is useful in sentinel node localization and for planning appropriate surgery. Recently, a large prospective multi-centric study evaluating SNB in cutaneous melanoma, breast and pelvic malignancies, demonstrated that adding SPECT to PL leads to surgical adjustments in a considerable number of patients...
April 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28532456/mechanisms-of-tanshinone-ii-a-inhibits-malignant-melanoma-development-through-blocking-autophagy-signal-transduction-in-a375-cell
#20
Xiaojing Li, Zhifeng Li, Xianping Li, Baoguo Liu, Zhijun Liu
BACKGROUND: Malignant melanoma (MM) is one of the high degree of malignancy and early prone to blood and lymph node metastasis. There is not cured for MM. Tan II A has been reported to reduce cancer cell proliferation. But the mechanism by which Tan II A inhibited melanoma growth are not well characterized. We sought to explore the possible mechanism by which Tan II A regulated cell proliferation through autophagy signaling pathway in A375 cells. METHODS: We tested the effects of Tan II A on melanoma A375, MV3, M14, and other human cell lines including Hacat and HUVEC cells in cell culture model...
May 22, 2017: BMC Cancer
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