Secretome of primary cultures is an accessible source of biological markers compared to more complex and less decipherable mixtures such as serum or plasma. The protonation state (PS) of secretome reflects the metabolism of cells and can be used for cancer early detection. Here, we demonstrate a superhydrophobic organic electrochemical device that measures PS in a drop of secretome derived from liquid biopsies.
View Article and Find Full Text PDFActa Dermatovenerol Croat
December 2017
Hand eczema is a chronic disease (1), commonly considered the expression of a contact allergic or irritative dermatitis. However, when the prick/patch tests and laboratory investigations are negative, important diagnostic challenges may arise. Peripheral nerve fibers are in fact capable of releasing neuromediators.
View Article and Find Full Text PDFJ Eur Acad Dermatol Venereol
January 2019
Background: Patients with multiple actinic keratoses (AKs) should be treated with field-directed therapy. Such treatments challenge patients' adherence due to out-of-pocket costs, length of treatment and severity of local skin reactions (LSRs). Effective physician-patient communication (PPC) may buffer therapy-related distress, thus improving quality of life, treatment satisfaction and adherence.
View Article and Find Full Text PDFActinic keratosis (AK) is a clinical condition characterized by keratinocytic dysplastic lesions of the epidermis, affecting individuals chronically exposed to sunlight. Topical therapies allow the treatment of a whole area of affected skin and currently include diclofenac sodium gel, 5-fluorouracil cream, 5-fluorouracil and acetylsalicylic acid solution, imiquimod cream, and ingenol mebutate gel. Due to the comparable efficacy of 3% diclofenac, ingenol mebutate, and 3.
View Article and Find Full Text PDFMelanoma is a severe form of cancer, resistant to conventional therapies. According to in vitro studies, sulforaphane, a dietary component, has been considered a promising antineoplastic candidate. The present study analyzes the in vitro biological effects of sulforaphane in A375 melanoma cell line with or without the addition of Nerve Growth Factor.
View Article and Find Full Text PDFG Ital Dermatol Venereol
April 2018
Scleroderma is divided into a systemic form called systemic sclerosis and a localized form also called morphea. According to 2013 ACR/EULAR Classification Criteria for Systemic Sclerosis, developed by the American College of Rheumatology (ACR) and the European League Against Rheumatism (EULAR), skin thickening of the fingers extending proximal to the metacarpophalangeal joints is sufficient for a patient to be classified as having scleroderma. Histological examination is not included in the diagnostic criteria and is not routinely performed.
View Article and Find Full Text PDF(1) Background: Non-melanoma skin cancer is the most frequently diagnosed cancer in humans. The process of skin carcinogenesis is still not fully understood. However, several studies have been conducted to better explain the mechanisms that lead to malignancy; (2) Methods: We reviewed the more recent literature about the pathogenesis of non-melanoma skin cancer focusing on basal cell carcinomas, squamous cell carcinoma and actinic keratosis; (3) Results: Several papers reported genetic and molecular alterations leading to non-melanoma skin cancer.
View Article and Find Full Text PDFG Ital Dermatol Venereol
February 2019
Despite the presence of several studies in literature, the real connection between vitamin D serological levels, vitamin D receptor and melanoma remains unclear, probably because of the complex correlation between vitamin D and melanoma. Indeed, UV radiations are not reported as the main risk factor for melanoma in non-sun-exposed, while systemic immunosuppression, anatomical and physiological features may contribute to malignancy. Therefore, the correlation between melanoma cells in sun-exposed areas and vitamin D, as well as vitamin D receptor could be different from the one in melanoma of sun-shielded sites.
View Article and Find Full Text PDFPsoriasis is a chronic inflammatory skin disease affecting 2%-3% of the population. The wide range of drugs currently available for its treatment could be associated, in the long term, with organ toxicity and adverse events, thus, clinical monitoring throughout treatment is required. This investigator-initiated trial (IIT) evaluated the efficacy and the safety of a vitamin B-containing ointment in comparison with glycerol-petrolatum-based emollient cream used twice a day to treat mild-to-moderate plaque psoriasis for a period over 12 weeks followed by a wash-out observation period of 4 weeks.
View Article and Find Full Text PDFPurpose: Human melanoma is a highly aggressive incurable cancer due to intrinsic cellular resistance to apoptosis, reprogramming, proliferation and survival during tumour progression. Sulforaphane (SFN), an isothiocyanate found in cruciferous vegetables, plays a role in carcinogenesis in many cancer types. However, the cytotoxic molecular mechanisms and gene expression profiles promoted by SFN in human melanoma remain unknown.
View Article and Find Full Text PDFG Ital Dermatol Venereol
February 2020
Background: Head and neck melanoma is a clinical challenge. Indeed, cutaneous head and neck melanoma shows a worse prognosis in comparison to melanomas of other body sites. Although the emphasis on facial cosmetic preservation plays a pivotal role in comparison to other body areas, specific Facial Aesthetic Units (FAU) could also play a key role in the prognostic evaluation of the malignancy.
View Article and Find Full Text PDFG Ital Dermatol Venereol
June 2018
Background: Dermatofibrosarcoma protuberans is a malignant tumor that affects exclusively the skin. It is a low-grade malignant tumor of subcutaneous tissues, characterized by a local recurrence but it seldom metastasizes. This study aimed to evaluate the impact of different clinical parameters on disease free survival and overall survival of dermatofibrosarcoma protuberans patients.
View Article and Find Full Text PDFG Ital Dermatol Venereol
February 2019
Background: Serum tryptase results from the constant release of the enzyme from mast cells and serum tryptase levels are commonly considered to be related to the total number of mast cells. They are increased in several malignancies, as pancreatic carcinoma, angiosarcoma, hepatic carcinoma and proliferative and/or non-proliferative hematological disorders. Contrariwise, it has been reported that the number of tryptase- and chymase-positive mast cells was lower in deeply invasive melanoma compared to in-situ melanoma and dysplastic nevi.
View Article and Find Full Text PDFThe skin immune system is composed of a vast network of immune cells, including lymphocytes, macrophages, neutrophils, dendritic cells and Langerhans cells, which not only are involved in inflammatory responses but also contribute to homeostatic function and may participate in the various steps of carcinogenesis. Many studies support the notion that innate immunity has a key role in the development, growth and prognosis of cutaneous malignant melanoma (MM), through the release of pro- and/or anti-inflammatory cytokines and tumour growth factors. The tumour environment in a major subset of cutaneous MM shows evidence of a T cell-infiltrated phenotype, but there is less known about the presence and the phenotype of other immune system cells.
View Article and Find Full Text PDFUltraviolet rays are one of the leading factors in the development of melanoma (MM); however, ultraviolet rays seem not to play a role in non-sun-exposed MM, where systemic immunosuppression, anatomical, and physiological features may contribute toward the development of the malignancy. Our aim was to evaluate vitamin D receptor (VDR) expression in shield-site melanoma (ST-MM) and non-shield-site melanoma (NST-MM) to find features that could explain the different biological behavior of MM according to the area of onset. We reviewed 118 specimens of MM.
View Article and Find Full Text PDFImatinib mesylate (IM) represents the first-line treatment of patients with chronic myeloid leukemia (CLM) or gastrointestinal stromal tumor (GIST). It presents several side effects. However, less than 10% are nonhematologic including nausea, vomiting, diarrhea, muscle cramps, and cutaneous reactions.
View Article and Find Full Text PDFInt J Immunopathol Pharmacol
December 2016
Tumor-associated macrophages (TAMs) are considered to affect tumor growth and progression. Macrophages can be classified into two states of polarized activation, namely classically activated M1 macrophages and alternatively activated M2 macrophages. The dynamic balance between TAMs and tumor cells has an important impact on tumor homeostasis and progression.
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