142,125 results match your criteria Malignant Melanoma

Phospho-β-catenin expression in primary and metastatic melanomas and in tumor-free visceral tissues, and associations with expression of PD-L1 and PD-L2.

Pathol Res Pract 2021 Jun 17;224:153527. Epub 2021 Jun 17.

Department of Microbiology, Immunology and Cancer Biology, University of Virginia School of Medicine, Charlottesville, VA 22908, USA; Beirne Carter Center for Immunology Research, University of Virginia School of Medicine, Charlottesville, VA 22908, USA; UVA Cancer Center, University of Virginia School of Medicine, Charlottesville, VA 22908, USA.

β-catenin (βcat) is an important downstream effector in the Wnt signaling pathway and plays important roles in the development and progression of many cancers including melanoma. βcat expression is regulated by GSK-3β-mediated phosphorylation at positions 33, 37 and 41. In normal cells, phosphorylation at these sites triggers proteasomal degradation, which prevents accumulation of free cytoplasmic βcat. Read More

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Obstructive sleep apnea and incidence of malignant tumors: a meta-analysis.

Sleep Med 2021 Jun 21;84:195-204. Epub 2021 Jun 21.

Department of Physiology, School of Basic Medical Sciences, Xinjiang Medical University, Urumqi, Xinjiang, China. Electronic address:

Objectives: This paper assessed the connection between obstructive sleep apnea (OSA) and the incidence of malignant tumors.

Methods: PubMed, Cochrane, Scopus, Health Source Nursing Academic Edition, EMBASE, and Web of Sciences were searched until the date of July 25, 2020. The analysis included an assessment of the overall incidence of OSA malignancies, the incidence of OSA malignancies by age and gender, and the incidence of different types of malignancies in patients with OSA. Read More

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Sarcopenia and prognosis of advanced cancer patients receiving immune checkpoint inhibitors: A comprehensive systematic review and meta-analysis.

Nutrition 2021 May 21;90:111345. Epub 2021 May 21.

Lung Cancer Center, West China Hospital, Sichuan University, Chengdu, China. Electronic address:

Objectives: Sarcopenia is commonly encountered in patients with advanced cancer, but the role of sarcopenia in predicting prognosis in this group of patients receiving immune checkpoint inhibitors (ICIs) remains undetermined. The aim of this study was to performed the first meta-analysis focusing on the prognostic value of sarcopenia in patients with advanced cancer who were treated with ICIs comprehensively.

Methods: A systematic search for relevant studies in the Web of Science, PubMed, and Embase was conducted on August 19, 2020. Read More

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A melanoma patient with macrophage-cancer cell hybrids in the primary tumor, a lymph node metastasis and a brain metastasis.

Cancer Genet 2021 May 28;256-257:162-164. Epub 2021 May 28.

Department of Dermatology and The Yale Cancer Center, Yale School of Medicine, New Haven, Connecticut, United States. Electronic address:

In 1911 it was proposed that cancer might result from fusion and hybridization between macrophages and cancer cells. Using immunohistochemistry it was determined that essentially all solid tumors expressed macrophage-like molecules on their cell surface. More recently we have used forensic (STR) genetics that allows one to detect DNA from more than one individual in the same sample. Read More

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Survival and medical costs of melanoma patients with subsequent cancer diagnoses: A South Korean population-based retrospective cohort study.

Asia Pac J Clin Oncol 2021 Jun 24. Epub 2021 Jun 24.

BK21 FOUR Community-Based Intelligent Novel Drug Discovery Education Unit, College of Pharmacy and Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, South Korea.

Aim: Subsequent cancers (SCs) after melanoma diagnosis further increases the risks of mortality and medical costs. This population-based analysis aimed to evaluate risk factors for SC, mortality, and medical costs of melanoma patients with SC.

Methods: A retrospective cohort analysis was conducted using a nationwide claims database during 2002-2017 in South Korea. Read More

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Genetics of white color and iridophoroma in "Lemon Frost" leopard geckos.

PLoS Genet 2021 Jun 24;17(6):e1009580. Epub 2021 Jun 24.

Department of Human Genetics, Department of Biological Chemistry, Howard Hughes Medical Institute, University of California, Los Angeles, California, United States of America.

The squamates (lizards and snakes) are close relatives of birds and mammals, with more than 10,000 described species that display extensive variation in a number of important biological traits, including coloration, venom production, and regeneration. Due to a lack of genomic tools, few genetic studies in squamates have been carried out. The leopard gecko, Eublepharis macularius, is a popular companion animal, and displays a variety of coloration patterns. Read More

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Esophageal Achalasia Induced by Ipilimumab and Nivolumab Combination: A Rare Neurological Manifestation of Immune-related Autonomic Neuropathy.

J Immunother 2021 Jun 23. Epub 2021 Jun 23.

Dermatology Department Neurology Department Gastroenterology Department, CHU de Bordeaux University of Bordeaux, Inserm U-1035 Dermatology Department, CH La Rochelle, Bordeaux, France.

Immunotherapy with immune checkpoint inhibitors (ICIs) has improved the prognosis of many cancers; a combination of nivolumab (anti-programmed cell death protein 1) and ipilimumab (anti-cytotoxic T-lymphocyte-associated protein 4) is approved as first-line therapy for advanced melanoma, with objective responses obtained in more than half of patients. However, this combination is associated with a high rate of immune-related adverse events, which are often severe and multiple. Neurological immune-related adverse events are rare but feared because they can be life-threatening, their diagnosis and management are challenging, and patients can have irreversible sequelae. Read More

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Cat at home? Cat scratch disease with atypical presentations and aggressive radiological findings mimicking sarcoma, a potential diagnostic pitfall.

Acta Orthop 2021 Jun 24:1-7. Epub 2021 Jun 24.

Department of Orthopedics and Trauma, Medical University of Graz, Graz.

Background and purpose - Cat scratch disease (CSD) is a self-limiting disease caused by It is characterized by granulomatous infection, most frequently involving lymph nodes. However, it can present with atypical symptoms including musculoskeletal manifestations, posing a diagnostic challenge. We describe the prevalence and demographics of CSD cases referred to a sarcoma center, and describe the radiological, histological, and molecular findings. Read More

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The moonlighting activities of dihydrolipoamide dehydrogenase: Biotechnological and biomedical applications.

J Mol Recognit 2021 Jun 23:e2924. Epub 2021 Jun 23.

The Shmunis School of Biomedicine and Cancer Research, The George Wise Faculty of Life Sciences, Tel Aviv University, Ramat Aviv, Israel.

Dihydrolipoamide dehydrogenase (DLDH) is a homodimeric flavin-dependent enzyme that catalyzes the NAD -dependent oxidation of dihydrolipoamide. The enzyme is part of several multi-enzyme complexes such as the Pyruvate Dehydrogenase system that transforms pyruvate into acetyl-co-A. Concomitantly with its redox activity, DLDH produces Reactive Oxygen Species (ROS), which are involved in cellular apoptotic processes. Read More

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Diagnostic utility of PRAME in distinguishing proliferative nodules from melanoma in giant congenital melanocytic nevi.

J Cutan Pathol 2021 Jun 23. Epub 2021 Jun 23.

Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX.

We describe a case of a melanocytic proliferation arising in a giant congenital melanocytic nevus (CMN) and outline the potential utility of an immunohistochemical study with PReferentially expressed Antigen in MElanoma (PRAME) in distinguishing benign proliferative nodules (PN) from melanoma in this context. A 15-day-old girl presented with a fibrotic nodule clinically suspicious for melanoma within a giant CMN. Histopathologic examination showed a predominantly intradermal melanocytic nevus with congenital features intermixing with an ill-defined proliferation of larger melanocytes demonstrating mild to moderate cytologic atypia and increased mitotic activity. Read More

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Phase 1 study of safety, pharmacokinetics, and pharmacodynamics of tivantinib in combination with bevacizumab in adult patients with advanced solid tumors.

Cancer Chemother Pharmacol 2021 Jun 23. Epub 2021 Jun 23.

Division of Hematology/Oncology, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.

Purpose: We investigated the combination of tivantinib, a c-MET tyrosine kinase inhibitor (TKI), and bevacizumab, an anti-VEGF-A antibody.

Methods: Patients with advanced solid tumors received bevacizumab (10 mg/kg intravenously every 2 weeks) and escalating doses of tivantinib (120-360 mg orally twice daily). In addition to safety and preliminary efficacy, we evaluated pharmacokinetics of tivantinib and its metabolites, as well as pharmacodynamic biomarkers in peripheral blood and skin. Read More

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Real-world safety and efficacy data of immunotherapy in patients with cancer and autoimmune disease: the experience of the Hellenic Cooperative Oncology Group.

Cancer Immunol Immunother 2021 Jun 23. Epub 2021 Jun 23.

First Department of Medicine, Laiko General Hospital, National and Kapodistrian University of Athens School of Medicine, Athens, Greece.

Background: Data on the safety and efficacy of immune checkpoint inhibitors (ICI) in patients with concurrent autoimmune diseases (AID) are limited.

Methods: We performed a retrospective multicenter review of medical records of patients with cancer and underlying AID who received ICI. The primary endpoint was progression-free survival (PFS). Read More

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Tumor microenvironment immune-related lncRNA signature for patients with melanoma.

Ann Transl Med 2021 May;9(10):857

Department of Oncology, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.

Background: The incidence of malignant melanoma accounts for only approximately 5% of skin malignant tumors, however, it accounts for 75% of its mortality. Long-chain non-coding RNA (lncRNA) has a wide range of functional activities. Disorders of lncRNAs may lead to the occurrence and development of melanoma, and may also be related to immunotherapy. Read More

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B Cell Orchestration of Anti-tumor Immune Responses: A Matter of Cell Localization and Communication.

Front Cell Dev Biol 2021 7;9:678127. Epub 2021 Jun 7.

Translational Immuno-oncology Group, International Research Center, A.C. Camargo Cancer Center, São Paulo, Brazil.

The immune system plays a crucial role in cancer development either by fostering tumor growth or destroying tumor cells, which has open new avenues for cancer immunotherapy. It was only over the last decade that the role of B cells in controlling anti-tumor immune responses in the tumor milieu has begun to be appreciated. B and plasma cells can exert anti-tumor effects through antibody-dependent cell cytotoxicity (ADCC) and activation of the complement cascade, even though their effector functions extend beyond the classical humoral immunity. Read More

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Immunotherapy-Induced Acute Tubulointerstitial Nephritis.

Cureus 2021 May 31;13(5):e15358. Epub 2021 May 31.

Nephrology, Grand Strand Medical Center, Myrtle Beach, USA.

Due to its minimal side-effect profile, immunotherapy has become a popular choice for the treatment of advanced melanoma as compared to conventional chemotherapy. The most common side effects associated with immunotherapy include gastrointestinal, pulmonary, and dermatologic manifestations. However, there have been very few documented occurrences of nephrotoxic side effects. Read More

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Surmounting tumor resistance to metallodrugs by co-loading a metal complex and siRNA in nanoparticles.

Chem Sci 2021 Feb 9;12(12):4547-4556. Epub 2021 Feb 9.

State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University Nanjing 210023 China

Copper complexes are promising anticancer agents widely studied to overcome tumor resistance to metal-based anticancer drugs. Nevertheless, copper complexes encounter drug resistance from time to time. Adenosine-5'-triphosphate (ATP)-responsive nanoparticles containing a copper complex CTND and B-cell lymphoma 2 (Bcl-2) small interfering RNA (siRNA) were constructed to cope with the resistance of cancer cells to the complex. Read More

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February 2021

Photoacoustic detection of circulating melanoma cells in late stage patients.

J Innov Opt Health Sci 2020 Nov 5;13(6). Epub 2020 Aug 5.

Department of Bioengineering, University of Pittsburgh, 3700 O'Hara Street Pittsburgh, PA 15260, USA.

Melanoma is the deadliest skin cancer and is responsible for over 7000 deaths in the US annually. The spread of cancer, or metastasis, is responsible for these deaths, as secondary tumors interrupt normal organ function. Circulating tumor cells, or those cells that spread throughout the body from the primary tumor, are thought to be responsible for metastasis. Read More

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November 2020

Identifying the 'Active Ingredients' of an Effective Psychological Intervention to Reduce Fear of Cancer Recurrence: A Process Evaluation.

Front Psychol 2021 7;12:661190. Epub 2021 Jun 7.

Cincinnati Children's Center for Heart Disease and Mental Health, Heart Institute and the Division of Behavioral Medicine & Clinical Psychology, Cincinnati Children's Hospital, Cincinnati, OH, United States.

Psychological interventions targeting fear of cancer recurrence (FCR) are effective in reducing fear and distress. Process evaluations are an important, yet scarce adjunct to published intervention trials, despite their utility in guiding the interpretation of study outcomes and optimizing intervention design for broader implementation. Accordingly, this paper reports the findings of a process evaluation conducted alongside a randomized controlled trial of a psychological intervention for melanoma patients. Read More

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Clinical Characteristics of Lipid Metabolism in Untreated Patients with Anti-MDA5 Antibody-Positive.

Int J Gen Med 2021 14;14:2507-2512. Epub 2021 Jun 14.

Department of Rheumatology and Immunology of the Second Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China.

Objective: Clinical characterization of lipid metabolism in untreated patients with anti-melanoma differentiation-associated gene 5 antibodies-positive (anti-MDA5).

Methods: Body-mass index (BMI), autoantibodies, lipid levels, and serum ferritin levels in 57 anti-MDA5 patients were determined in the Department of Rheumatology and Immunology of the Second Affiliated Hospital of Chongqing Medical University.

Results: Plasma high-density lipoprotein (HDL) and apolipoprotein A1 (ApoA1) levels were significantly lower in deceased group than in the survival group (P < 0. Read More

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Reactivation of the tumor suppressor PTEN by mRNA nanoparticles enhances antitumor immunity in preclinical models.

Sci Transl Med 2021 Jun;13(599)

Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.

Increasing clinical evidence has demonstrated that the deletion or mutation of tumor suppressor genes such as the gene-encoding phosphatase and tensin homolog deleted on chromosome 10 (PTEN) in cancer cells may correlate with an immunosuppressive tumor microenvironment (TME) and poor response or resistance to immune checkpoint blockade (ICB) therapy. It is largely unknown whether the restoration of functional PTEN may modulate the TME and improve the tumor's sensitivity to ICB therapy. Here, we demonstrate that mRNA delivery by polymeric nanoparticles can effectively induce expression of PTEN in -mutated melanoma cells and -null prostate cancer cells, which in turn induces autophagy and triggers cell death-associated immune activation via release of damage-associated molecular patterns. Read More

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Rejection of benign melanocytic nevi by nevus-resident CD4 T cells.

Sci Adv 2021 Jun 23;7(26). Epub 2021 Jun 23.

Center for Cancer Immunology and Cutaneous Biology Research Center, Department of Dermatology, Center for Cancer Research, Massachusetts General Hospital Cancer Center, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA.

Melanoma and melanocytic nevi harbor shared lineage-specific antigens and oncogenic mutations. Yet, the relationship between the immune system and melanocytic nevi is unclear. Using a patient-derived xenograft (PDX) model, we found that 81. Read More

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Detection of cell-free microbial DNA using a contaminant-controlled analysis framework.

Genome Biol 2021 Jun 23;22(1):187. Epub 2021 Jun 23.

Peter MacCallum Cancer Centre, Melbourne, Australia.

Background: The human microbiome plays an important role in cancer. Accumulating evidence indicates that commensal microbiome-derived DNA may be represented in minute quantities in the cell-free DNA of human blood and could possibly be harnessed as a new cancer biomarker. However, there has been limited use of rigorous experimental controls to account for contamination, which invariably affects low-biomass microbiome studies. Read More

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Cancer incidence among musicians: 45 years of follow-up in four Nordic countries.

Acta Oncol 2021 Jun 23:1-7. Epub 2021 Jun 23.

International Agency for Research on Cancer/World Health Organization (IARC/WHO), Lyon, France.

Background: There are studies suggesting that participation in musical activities may protect from cancer. On the other hand, some musicians have a lifestyle that might increase the risk of cancer. The objective of this study was to assess the cancer pattern of musicians in four Nordic countries. Read More

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Tumor-Penetrable Nitric Oxide-Releasing Nanoparticles Potentiate Local Antimelanoma Therapy.

ACS Appl Mater Interfaces 2021 Jun 23. Epub 2021 Jun 23.

College of Pharmacy, Pusan National University, Busan, South Korea.

Although nitric oxide (NO) has been emerging as a novel local anticancer agent because of its potent cytotoxic effects and lack of off-target side effects, its clinical applications remain a challenge because of the short effective diffusion distance of NO that limits its anticancer activity. In this study, we synthesized albumin-coated poly(lactic--glycolic acid) (PLGA)-conjugated linear polyethylenimine diazeniumdiolate (LP/NO) nanoparticles (Alb-PLP/NO NPs) that possess tumor-penetrating and NO-releasing properties for an effective local treatment of melanoma. Sufficient NO-loading and prolonged NO-releasing characteristics of Alb-PLP/NO NPs were acquired through PLGA-conjugated LP/NO copolymer (PLP/NO) synthesis, followed by nanoparticle fabrication. Read More

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Identification of survival-related genes and a novel gene-based prognostic signature involving the tumor microenvironment of uveal melanoma.

Int Immunopharmacol 2021 Jul 2;96:107816. Epub 2021 Jun 2.

Department of Gerontology and Geriatrics, Shengjing Hospital of China Medical University, Shenyang 110004, China. Electronic address:

Uveal melanoma (UM) is the most common primary intraocular malignant tumor in adults and almost fifty percent of patients subsequently develop systemic metastases usually involving the liver. The tumor microenvironment (TME) is crucial to the initiation and progression of tumors. In the present study, we comprehensively evaluated the TME of primary UM samples from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) database by using several bioinformatic algorithms. Read More

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Thymic carcinoma with Lynch syndrome or microsatellite instability, a rare entity responsive to immunotherapy.

Eur J Cancer 2021 Jun 20;153:162-167. Epub 2021 Jun 20.

Division of Medical Oncology for Melanoma & Sarcoma, IEO, European Institute of Oncology IRCCS, Milan, Italy.

Importance: Thymic carcinoma (TC) is a rare aggressive tumour occurring in adults characterised by one of the lowest tumor mutational burdens (TMB). Microsatellite instability (MSI) is a mutational signature, caused by defects in the DNA MisMatch Repair (MMR) system, that predicts benefit from immunotherapy and causes high TMB. Fragmentary and unstructured evidence of these conditions co-occurring are reported in literature. Read More

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Riok3 inhibits the antiviral immune response by facilitating TRIM40-mediated RIG-I and MDA5 degradation.

Cell Rep 2021 Jun;35(12):109272

Cancer Institute, ZJU-UCLA Joint Center for Medical Education and Research, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, P.R. China; Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA. Electronic address:

The type I interferon (IFN) pathway is a key component of innate immune response upon invasion of foreign pathogens. It is also under precise control to prevent excessive upregulation and undesired inflammation cascade. In the present study, we report that Riok3, an atypical kinase, negatively regulates retinoic acid-inducible gene-I (RIG-I)-like receptors (RLRs) sensing-induced type I IFN signaling. Read More

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Facial Seborrheic Keratosis with Unusual Dermoscopic Patterns can be differentiated from other skin malignancies by In Vivo Reflectance Confocal Microscopy.

J Eur Acad Dermatol Venereol 2021 Jun 23. Epub 2021 Jun 23.

Dermatology Unit, Department of Surgical, Medical, Dental and Morphological Sciences related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Italy.

Different dermoscopic presentations of typical seborrheic keratosis (SK) have been widely described but atypical SKs have not yet been distinguished from cutaneous neoplasms. In these cases, histopathological diagnosis is needed to rule out malignancy . Reflectance confocal microscopy (RCM) improves cutaneous skin differential diagnoses, also for benign lesions with common dermoscopic melanoma-associated features . Read More

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Prevalence of premalignant and malignant skin lesions in oculocutaneous albinism patients.

Rev Assoc Med Bras (1992) 2021 Jan;67(1):77-82

Hospital Universitário Professor Edgard Santos, Departamento de Dermatologia - Salvador (BA), Brasil.

Objective: Oculocutaneous albinism describes a group of pigmentary disorders that lead to skin sensitivity and predisposition to skin malignances.

Aims: To analyze clinical and epidemiological data in oculocutaneous albinism patients and to determine the prevalence of malignant skin lesions, assessing possible risk factors for skin cancer.

Methods: Cross-sectional study evaluating epidemiological data, habits of sun exposure and sun protection, and clinical examination of albino patients followed in a reference dermatology outpatient clinic in Brasil. Read More

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January 2021

[Treatment of melanoma with immune checkpoints inhibitors].

Rev Prat 2021 Apr;71(4):380-383

Service de dermatologie, institut Gustave-Roussy, Villejuif, France.

Treatment of melanoma with immune checkpoints inhibitors .Immunotherapy with checkpoints inhibitors stimulates the anti-tumor response. It has dramatically changed the prognosis of advanced melanoma and other cancers. Read More

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