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https://www.readbyqxmd.com/read/28282922/the-development-of-a-novel-therapeutic-strategy-to-target-hyaluronan-in-the-extracellular-matrix-of-pancreatic-ductal-adenocarcinoma
#1
REVIEW
Daisuke Kudo, Akiko Suto, Kenichi Hakamada
Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal diseases to affect humans, regardless of whether patients receive multimodal therapy (including surgery, radiotherapy, and chemotherapy). This resistance to intervention is currently considered to be caused by the desmoplastic change of the extracellular matrix (ECM) in PDAC tissues, which is characterized by the accumulation of cancer-associated fibroblasts, collagen, proteoglycan, and hyaluronan. Among these ECM components, hyaluronan has attracted interest because various studies have indicated that hyaluronan-rich PDAC is correlated with the progressive properties of cancer cells, both in experimental and clinical settings...
March 9, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28279493/effect-of-melanoma-cells-on-proliferation-and-migration-of-activated-hepatic-stellate-cells-in-vitro
#2
Theresa Meyer, Andreas Koch, Eva-Vanessa Ebert, Barbara Czech, Martina Mueller, Anja Bosserhoff, Sven Arke Lang, Claus Hellerbrand
Melanoma is a highly aggressive tumor of the skin. The clinical outcome is determined by the presence or absence of metastases, and the liver is a common site of distant metastases. Hepatic metastasis is causing activation of hepatic stellate cells (HSC), which form the stroma of hepatic metastases and are increasingly recognized as a crucial component of the pro- metastatic liver microenvironment. Most studies have focused on the effects of HSC on (metastasizing) tumor cells. Here, we aimed to analyze functional in vitro effects of conditioned medium (CM) of twelve different human melanoma cell lines on LX2 cells and HSC(htert) cells, two well established human activated HSC cell lines...
December 26, 2016: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28273977/amelanotic-melanoma-arising-in-filarial-leg-a-report-of-a-rare-case
#3
Mamita Nayak, Susama Patra, Susanta Meher, Prakash Kumar Sasmal
Amelanotic melanoma arising on chronic lymphoedema has not been reported earlier. We reported a case of amelanotic melanoma of right leg developing in a background of chronic lymphoedema of filarial origin in an elderly male of 60 years, who underwent wide local excision of the lesion followed by skin grafting for the same. A histopathological diagnosis of amelanotic melanoma was made. The patient was on follow up when he developed brain metastasis within a period of nine months for which he was operated and is on regular follow up now...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28252938/transdermal-gene-delivery-by-functional-peptide-conjugated-cationic-gold-nanoparticle-reverses-the-progression-and-metastasis-of-cutaneous-melanoma
#4
Jie Niu, Yang Chu, Yan-Fen Huang, Yee-Song Chong, Zhi-Hong Jiang, Zheng-Wei Mao, Li-Hua Peng, Jian-Qing Gao
Permeability barrier imposed by stratum corneum makes an extreme challenge for the topical delivery of plasmid DNA (pDNA), which is widely used in gene therapy. Existing techniques to overcome the skin barrier for bio-macromolecules delivery rely on sophisticated mechanical devices. It is still a big challenge to treat the skin cancer, for example, melanoma, that initiates in the dermal layer by topical gene therapy. To facilitate the skin penetration of pDNA deeply into the melanoma tissues, we here present a cell-penetrating peptide and cationic poly(ethyleneimine) conjugated gold nanoparticle (AuPT) that can compact the pDNAs into cationic nanocomplexes and penetrate through the intact stratum corneum without any additional enhancement used...
March 8, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28225791/characterization-of-long-noncoding-rna-and-messenger-rna-signatures-in-melanoma-tumorigenesis-and-metastasis
#5
Siqi Wang, Wenliang Fan, Bing Wan, Mengqi Tu, Feng Jin, Fang Liu, Haibo Xu, Ping Han
The incidence of melanoma, the most aggressive and life-threatening form of skin cancer, has significantly risen over recent decades. Therefore, it is essential to identify the mechanisms that underlie melanoma tumorigenesis and metastasis and to explore novel and effective melanoma treatment strategies. Accumulating evidence s uggests that aberrantly expressed long noncoding RNAs (lncRNAs) have vital functions in multiple cancers. However, lncRNA functions in melanoma tumorigenesis and metastasis remain unclear...
2017: PloS One
https://www.readbyqxmd.com/read/28213066/inguinal-lymph-node-presenting-as-the-delayed-site-of-metastasis-in-early-stage-endometrial-carcinoma-case-report
#6
Shomaila Amir M Akbar, Mutahir A Tunio, Wafa AlShakweer, AbdulAziz AlObaid, Mushabbab AlAsiri
INTRODUCTION: Inguinal lymph nodes are the frequent sites of metastasis for malignant lymphoma, squamous cell carcinoma of anal canal, vulva and penis, malignant melanoma and squamous cell carcinoma of skin over lower extremities or trunk. Anatomically, endometrial carcinoma is less likely to spread to the superficial or deep inguinal lymph nodes, thus metastatic involvement of these lymph nodes can easily be overlooked. CASE PRESENTATION: Here-in we report a case of a 65-year old Saudi morbid obese female, who presented with left inguinal lymphadenopathy as initial delayed site of metastasis almost 19 months after the initial treatment for FIGO IA endometrial carcinoma...
January 19, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28188308/tetraspanin-8-is-a-novel-regulator-of-ilk-driven-%C3%AE-1-integrin-adhesion-and-signaling-in-invasive-melanoma-cells
#7
Manale El Kharbili, Clément Robert, Tiffany Witkowski, Emmanuelle Danty-Berger, Laetitia Barbollat-Boutrand, Ingrid Masse, Nicolas Gadot, Arnaud de la Fouchardière, Paul C McDonald, Shoukat Dedhar, François Le Naour, Françoise Degoul, Odile Berthier-Vergnes
Melanoma is well known for its propensity for lethal metastasis and resistance to most current therapies. Tumor progression and drug resistance depend to a large extent on the interplay between tumor cells and the surrounding matrix. We previously identified Tetraspanin 8 (Tspan8) as a critical mediator of melanoma invasion, whose expression is absent in healthy skin. The present study investigated whether Tspan8 may influence cell-matrix anchorage and regulate downstream molecular pathways leading to an aggressive behavior...
February 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28171845/a-first-reported-case-of-metastatic-anorectal-amelanotic-melanoma-with-a-marked-response-to-anti-pd-1-antibody-nivolumab-a-case-report
#8
Katsuji Tokuhara, Kazuyoshi Nakatani, Hirotsugu Tanimura, Kazuhiko Yoshioka, Takahiro Kiyohara, Masanori Kon
INTRODUCTION: Anorectal amelanotic melanoma (AAMM) is a rare disease with poor prognosis. A standard treatment strategy for AAMM has not been established. PRESENTATION OF CASE: We report a case of successful treatment of AAMM with nivolumab. A 67-year-old man was referred for colonoscopy which revealed type I tumor in the rectum. AAMM was diagnosed with immunostaining histopathological biopsy findings. Enhanced computed tomography (ECT) revealed the rectal tumor without distant organ metastasis...
January 23, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28166075/clinico-histopathological-survey-of-head-and-neck-cancer-at-tertiary-health-care-centre-dhulikhel-hospital
#9
S Dixit, C Upadhyaya, M Humagain, R Srii, V Marla
Background Head and neck is one of the most prevalent site for cancers along with lungs, cervix, breast and stomach. Hospital based cancer registries required for effective evaluation of diagnosis and management of cancer is inadequate in Nepal. Cancer registry system established by WHO is acquired by seven major hospitals in our country. However, data from tertiary health care centres like ours remain undocumented. Objective The objective of this study is to perform retrospective analysis of clinicohistopathological types of head and neck lesions which were eventually diagnosed as cancer in Dhulikel Hospital, a tertiary health care centre of Central East Nepal...
April 2016: Kathmandu University Medical Journal (KUMJ)
https://www.readbyqxmd.com/read/28162999/health-related-quality-of-life-with-adjuvant-ipilimumab-versus-placebo-after-complete-resection-of-high-risk-stage-iii-melanoma-eortc-18071-secondary-outcomes-of-a-multinational-randomised-double-blind-phase-3-trial
#10
Corneel Coens, Stefan Suciu, Vanna Chiarion-Sileni, Jean-Jacques Grob, Reinhard Dummer, Jedd D Wolchok, Henrik Schmidt, Omid Hamid, Caroline Robert, Paolo A Ascierto, Jon M Richards, Celeste Lebbé, Virginia Ferraresi, Michael Smylie, Jeffrey S Weber, Michele Maio, Andrew Bottomley, Srividya Kotapati, Veerle de Pril, Alessandro Testori, Alexander M M Eggermont
BACKGROUND: The EORTC 18071 phase 3 trial compared adjuvant ipilimumab with placebo in patients with stage III melanoma. The primary endpoint, recurrence-free survival, was significantly longer in the ipilimumab group than in the placebo group. Investigator-reported toxic effects of ipilimumab consisted mainly of skin, gastrointestinal, endocrine, and hepatic immune-related adverse events. Adjuvant treatment with ipilimumab in this setting was approved in October, 2014, by the US Food and Drug Administration based on the results of the primary outcome of this trial...
February 2, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28128848/head-and-neck-cancers-major-changes-in-the-american-joint-committee-on-cancer-eighth-edition-cancer-staging-manual
#11
William M Lydiatt, Snehal G Patel, Brian O'Sullivan, Margaret S Brandwein, John A Ridge, Jocelyn C Migliacci, Ashley M Loomis, Jatin P Shah
Answer questions and earn CME/CNE The recently released eighth edition of the American Joint Committee on Cancer (AJCC) Staging Manual, Head and Neck Section, introduces significant modifications from the prior seventh edition. This article details several of the most significant modifications, and the rationale for the revisions, to alert the reader to evolution of the field. The most significant update creates a separate staging algorithm for high-risk human papillomavirus-associated cancer of the oropharynx, distinguishing it from oropharyngeal cancer with other causes...
March 2017: CA: a Cancer Journal for Clinicians
https://www.readbyqxmd.com/read/28118487/electrochemotherapy-in-the-treatment-of-metastatic-malignant-melanoma-a-prospective-cohort-study-by-inspect
#12
C Kunte, V Letulé, J Gehl, K Dahlstroem, P Curatolo, R Rotunno, T Muir, A Occhini, G Bertino, B Powell, W Saxinger, G Lechner, S-H Liew, R Pritchard-Jones, P Rutkowski, M Zdzienicki, D Mowatt, A J Sykes, A Orlando, G Mitsala, C R Rossi, L Campana, M Brizio, F de Terlizzi, P Quaglino, J Odili
BACKGROUND: Electrochemotherapy (ECT) is an effective local treatment for cutaneous metastasis. Treatment involves the administration of chemotherapeutic drugs followed by delivery of electrical pulses to the tumour. The aim of this study was to investigate the effectiveness of ECT in cutaneous metastases of melanoma and to identify factors which affect (beneficially or adversely) the outcome. METHODS: 13 cancer centres in the International Network for Sharing Practices on Electrochemotherapy (INSPECT) consecutively and prospectively uploaded data to a common database...
January 24, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28107182/the-nitrobenzoxadiazole-derivative-mc3181-blocks-melanoma-invasion-and-metastasis
#13
Anastasia De Luca, Debora Carpanese, Maria Cristina Rapanotti, Tara Mayte Suarez Viguria, Maria Antonietta Forgione, Dante Rotili, Chiara Fulci, Egidio Iorio, Luigi Quintieri, Sergio Chimenti, Luca Bianchi, Antonio Rosato, Anna Maria Caccuri
The novel nitrobenzoxadiazole (NBD) derivative MC3181 is endowed with remarkable therapeutic activity in mice bearing both sensitive and vemurafenib-resistant human melanoma xenografts. Here, we report that subtoxic concentrations of this compound significantly reduced invasiveness of BRAF-V600D mutated WM115 and WM266.4 melanoma cell lines derived from the primary lesion and related skin metastasis of the same patient, respectively. The strong antimetastatic activity of MC3181 was observed in both 2D monolayer cultures and 3D multicellular tumor spheroids, and confirmed in vivo by the significant decrease in the number of B16-F10 melanoma lung metastases in drug-treated mice...
January 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28105694/lack-of-xage-1b-and-ny-eso-1-in-metastatic-lymph-nodes-may-predict-the-potential-survival-of-stage-iii-melanoma-patients
#14
Mariko Mori, Takeru Funakoshi, Kaori Kameyama, Yutaka Kawakami, Eiichi Sato, Eiichi Nakayama, Masayuki Amagai, Keiji Tanese
The cancer-testis antigens (CTA) are a large family of tumor-associated antigens expressed by a variety of cancer cells and primitive germ cells of the adult testis and placenta. These tumor-restricted expressing patterns suggest that CTA would be ideal targets for tumor-specific immunotherapy. XAGE-1 is a CTA that was originally identified by computer-based screening, and four transcription variants, XAGE-1a, -1b, -1c and -1d, have been characterized to date. Although the presence of XAGE-1 transcripts has been reported in various cancers, the expression of XAGE-1b in melanoma has not been fully characterized...
January 20, 2017: Journal of Dermatology
https://www.readbyqxmd.com/read/28099368/recurrence-behavior-in-early-stage-cutaneous-melanoma-pattern-timing-survival-and-influencing-factors
#15
Faruk Tas, Kayhan Erturk
Nearly one-third of all melanoma patients will experience disease recurrence and the majority of the relapses eventually develop metastatic disease as a consequence of disease progression in the early-stage melanoma patients. Although the factors that predict the recurrence have already been described, very few numbers of studies have investigated the natural recurrence history of melanoma. In this retrospective study, we analyzed the time until recurrence along with the patterns and outcomes of the recurrences; thus, we aimed to understand the possible factors that might influence the recurrence course in early-stage cutaneous melanoma at the first relapse...
January 17, 2017: Melanoma Research
https://www.readbyqxmd.com/read/28096290/the-epidermal-polarity-protein-par3-is-a-non-cell-autonomous-suppressor-of-malignant-melanoma
#16
Melina Mescher, Peter Jeong, Sina K Knapp, Matthias Rübsam, Michael Saynisch, Marina Kranen, Jennifer Landsberg, Max Schlaak, Cornelia Mauch, Thomas Tüting, Carien M Niessen, Sandra Iden
Melanoma, an aggressive skin malignancy with increasing lifetime risk, originates from melanocytes (MCs) that are in close contact with surrounding epidermal keratinocytes (KCs). How the epidermal microenvironment controls melanomagenesis remains poorly understood. In this study, we identify an unexpected non-cell autonomous role of epidermal polarity proteins, molecular determinants of cytoarchitecture, in malignant melanoma. Epidermal Par3 inactivation in mice promotes MC dedifferentiation, motility, and hyperplasia and, in an autochthonous melanoma model, results in increased tumor formation and lung metastasis...
February 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28087048/-characteristics-and-risk-factors-for-recurrence-of-cutaneous-squamous-cell-carcinoma-with-conventional-surgery-and-surgery-with-delayed-intraoperative-margin-assessment
#17
Judith Domínguez-Cherit, Georgina Rodríguez-Gutiérrez, Verónica Narváez Rosales, Sonia Toussaint Caire, Verónica Fonte Avalos
BACKGROUND: Non-melanoma skin cancer includes basal cell carcinoma and squamous cell carcinoma (SCC). Basal cell carcinoma is the most common and least aggressive but in a low percentage of cases, despite appropriate wide surgical margins, it can be aggressive, producing local invasion, recurrences and distance metastasis. SCC has a more aggressive behaviour invading first the skin, the lymph nodes and less frequently produces distance metastasis OBJECTIVE: To identify the characteristics of recurrent SCC and frequency of new SCC after conventional surgical and primary closure or closure delayed until a histological reporting of tumour-free surgical margins, in order to achieve a better surgical option, in our Mexican population...
January 10, 2017: Cirugia y Cirujanos
https://www.readbyqxmd.com/read/28012339/rare-nodular-malignant-melanoma-of-the-heel-in-the-caribbean-a-case-report
#18
Wayne A Warner, Vandana Devika Sookdeo, Srikanth Umakanthan, Kevin Sarran, Lemuel Pran, Maurice Fortuné, Wesley Greaves, Sharda Narinesingh, Dave Harnanan, Ravi Maharaj
INTRODUCTION: Malignant melanoma of the heel is a rare melanoma subtype with incidence rates that reflect the complex relationship between sun exposure at certain geographic locations, individual melanin levels and overall melanoma risk. It is oftentimes characterized by poor prognosis because of delays in presentation resulting in longitudinal tumor invasion, lymph node involvement and metastasis. PRESENTATION OF CASE: A 59-year-old woman was admitted to the Eric Williams Medical Sciences Complex, Trinidad and Tobago with a 5mm pruritic lesion on her left heel...
November 27, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28012127/fluorescein-sodium-guided-resection-of-cerebral-metastases-an-update
#19
Julius Höhne, Christoph Hohenberger, Martin Proescholdt, Markus J Riemenschneider, Christina Wendl, Alexander Brawanski, Karl-Michael Schebesch
BACKGROUND: Cerebral metastasis (CM) is the most common malignancy affecting the brain. In patients eligible for surgery, complete tumor removal is the most important predictor of overall survival and neurological outcome. The emergence of surgical microscopes fitted with a fluorescein-specific filter have facilitated fluorescein-guided microsurgery and identification of tumor tissue. In 2012, we started evaluating fluorescein (FL) with the dedicated microscope filter in cerebral metastases (CM)...
February 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28000788/in-vivo-label-free-photoacoustic-flow-cytography-and-on-the-spot-laser-killing-of-single-circulating-melanoma-cells
#20
Yun He, Lidai Wang, Junhui Shi, Junjie Yao, Lei Li, Ruiying Zhang, Chih-Hsien Huang, Jun Zou, Lihong V Wang
Metastasis causes as many as 90% of cancer-related deaths, especially for the deadliest skin cancer, melanoma. Since hematogenous dissemination of circulating tumor cells is the major route of metastasis, detection and destruction of circulating tumor cells are vital for impeding metastasis and improving patient prognosis. Exploiting the exquisite intrinsic optical absorption contrast of circulating melanoma cells, we developed dual-wavelength photoacoustic flow cytography coupled with a nanosecond-pulsed melanoma-specific laser therapy mechanism...
December 21, 2016: Scientific Reports
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