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1.
Int Wound J ; 21(3): e14505, 2023 Dec 04.
Article in English | MEDLINE | ID: mdl-38049311

ABSTRACT

The Wound-QoL assesses the impact of chronic wounds on patients' health-related quality of life (HRQoL). A 17-item and a shortened 14-item version are available. The Wound-QoL-17 has been validated for multiple languages. For the Wound-QoL-14, psychometric properties beyond internal consistency were lacking. We aimed to validate both Wound-QoL versions for international samples representing a broad range of European countries, including countries for which validation data had yet been pending. Patients with chronic wounds of any aetiology or location were recruited in Austria, Lithuania, the Netherlands, Poland, Slovakia, Spain, Switzerland and Ukraine. Psychometric properties were determined for both Wound-QoL versions for the overall sample and, if feasible, country-wise. We included 305 patients (age 68.5 years; 52.8% males). Internal consistency was high in both Wound-QoL-17 (Cronbach's α: 0.820-0.933) and Wound-QoL-14 (0.779-0.925). Test-retest reliability was moderate to good (intraclass correlation coefficient: 0.618-0.808). For Wound-QoL-17 and Wound-QoL-14, convergent validity analyses showed highest correlations with global HRQoL rating (r = 0.765; r = 0.751) and DLQI total score (r = 0.684; r = 0.681). Regarding clinical data, correlations were largest with odour (r = -0.371; r = -0.388) and wound size (r = 0.381; r = 0.383). Country-wise results were similar. Both Wound-QoL versions are valid to assess HRQoL of patients with chronic wounds. Due to its psychometric properties and brevity, the Wound-QoL-14 might be preferrable in clinical practice where time is rare. The availability of various language versions allows for the use of this questionnaire in international studies and in clinical practice when foreign language patients are being treated.

2.
Int Wound J ; 20(10): 4138-4150, 2023 Dec.
Article in English | MEDLINE | ID: mdl-37475498

ABSTRACT

Chronic wounds can severely limit patient's social life. This cross-sectional study investigated quantitatively social support of patients with chronic wounds, its association with health-related quality of life as well as qualitatively changes in social participation of these patients. Overall, 263 patients from seven countries participated. The most frequent wound class was leg ulcer (49.2%). Results revealed generally high levels of social support (mean global score: 5.5) as measured with the Multidimensional Scale of Perceived Social Support. However, individuals differed considerably (range 1.0-7.0). All dimensions of social support differed by patients' family and living situations (p < 0.001 to p = 0.040) and were positively correlated with generic health-related quality of life (r = 0.136-0.172). Having children, living with others and being in a relationship were significant predictors of having higher global social support. Patients reported great support from family members. Many participants reported no changes in relationships with friends. Wound care managers took an important role and provided additional emotional support. Patients reported a range of discontinued activities. Despite the high overall level of social support, inter-individual differences should be acknowledged. The importance of family carers should be acknowledged to be able to reduce caregiver burden and to ensure high-qualitative wound care.


Subject(s)
Quality of Life , Social Participation , Child , Humans , Quality of Life/psychology , Cross-Sectional Studies , Family/psychology , Social Support
3.
Eur J Dermatol ; 2021 Aug 17.
Article in English | MEDLINE | ID: mdl-34405807

ABSTRACT

Skin cancer is the most common malignancy with rising incidence. Although early detection can be lifesaving, prevention programmes are under-utilized. In 2008, a group of board-certified dermatologists in Switzerland established a website aimed at educating about skin cancer risk factors and providing guidance on self-assessment. To present the data of this programme over the last 10 years with regards to representation of the targeted groups and sustained impact on primary skin cancer prevention. A comprehensive web-based health promotion campaign was established for education and guidance on self-assessment. Teledermatological evaluation was offered and participants were then interviewed. In total, 11,171 digital photos were evaluated during 2008-2018; 54.3% (n = 6,067) from females and 45.7% (n = 5,104) from males. In 26.7% (n = 2,983), clinical examination was recommended. Of the participants, 1,874 replied revealing 103 malignancies (9.2% of the lesions were presented to a physician): 34 melanomas in situ, six squamous cell carcinomas, 53 basal cell carcinomas and 10 malignant lesions (not further specified). Of the participants, 40.5% (n = 683) changed their attitude towards sun exposure, 48.7% (n = 820) used more sunscreen, and 57.5% (n = 966) improved sunscreen measures. Web-based educational programmes raise public awareness, enhance prevention, and support early diagnosis of skin cancer. Teledermatology might contribute to reducing skin cancer mortality rates.

4.
Cancers (Basel) ; 13(12)2021 Jun 11.
Article in English | MEDLINE | ID: mdl-34208218

ABSTRACT

Immune checkpoint inhibitors (ICIs) can induce immune-related adverse events (irAEs), which may result in treatment discontinuation. We sought to describe the onset, frequency, and kinetics of irAEs in melanoma patients in a real-life setting and to further investigate the prognostic role of irAEs in treatment outcomes. In this retrospective single-center cohort study, we included 249 melanoma patients. Onset, grade, and resolution of irAEs and their treatment were analyzed. A total of 191 (74.6%) patients in the non-adjuvant and 65 (25.3%) in the adjuvant treatment setting were identified. In the non-adjuvant setting, 29 patients (59.2%) with anti-CTLA4, 43 (58.1%) with anti-PD1, and 54 (79.4%) with anti-PD1/anti-CTLA4 experienced some grade of irAE and these had an improved outcome. In the adjuvant setting, the frequency of irAEs was 84.6% in anti-CTLA4 and 63.5% in anti-PD1, but no correlation with disease relapse was observed. Patients with underlying autoimmune conditions have a risk of disease exacerbation. Immunomodulatory agents had no impact on treatment efficacy. IrAEs are correlated with increased treatment efficacy in the non-adjuvant setting. Application of steroids and immunomodulatory agents, such as anti-TNF-alpha or anti-IL6, did not affect ICI efficacy. These data support irAEs as possible prognostic markers for ICI treatment.

5.
Genes (Basel) ; 12(5)2021 05 20.
Article in English | MEDLINE | ID: mdl-34065301

ABSTRACT

BACKGROUND: We investigated the mutational landscape of skin tumors in patients with Muir-Torre Syndrome (MTS) a hereditary autosomal dominant mismatch repair disorder of increased cancer susceptibility, and examined mutations other than in the DNA mismatch repair (MMR) genes. METHODS: This retrospective single-center case series included seven patients with the diagnosis of Muir-Torre Syndrome with precise medical history and family history. Mutational analysis of tumor samples Formalin-fixed paraffin-embedded tissue blocks of skin lesions associated with Muir-Torre Syndrome were used for further analysis. All skin tumors were analyzed with the Oncomine Comprehensive Assay v3 (Life Technologies), which includes 161 of the most relevant cancer driver genes. RESULTS: Eleven skin neoplasms (nine sebaceous tumors, one melanoma, one cutaneous squamous cell carcinoma) were diagnosed in seven patients. In two patients, visceral malignancies preceded the diagnosis of the skin tumors and one patient was diagnosed with a visceral malignancy after a sebaceous tumor. History of familial cancer of Lynch Syndrome (LS) was reported in three patients. The most frequently detected mutation was in the MSH2 gene, followed by mutations in the NOTCH1/2 and TP53 gene. Conclusion, this study provides a molecular analysis of Muir-Torre Syndrome associated and non-associated skin tumors in patients with Muir-Torre Syndrome. Patients with sebaceous lesions should undergo microsatellite instability analysis and accurate evaluation of personal and family history to detect a possible Muir-Torre syndrome. As secondary malignancies may appear years after the first occurrence of sebaceous tumors, lifelong screening is mandatory.


Subject(s)
Carcinoma, Squamous Cell/genetics , Genetic Testing/methods , Melanoma/genetics , Muir-Torre Syndrome/genetics , Skin Neoplasms/genetics , Aged , Carcinoma, Squamous Cell/pathology , Female , Genetic Testing/standards , High-Throughput Nucleotide Sequencing/methods , High-Throughput Nucleotide Sequencing/standards , Humans , Male , Melanoma/pathology , Middle Aged , Muir-Torre Syndrome/pathology , MutS Homolog 2 Protein/genetics , Mutation , Receptor, Notch1/genetics , Receptor, Notch2/genetics , Sequence Analysis, DNA/methods , Sequence Analysis, DNA/standards , Skin Neoplasms/pathology , Tumor Suppressor Protein p53/genetics
6.
Clin Case Rep ; 8(11): 2324-2325, 2020 Nov.
Article in English | MEDLINE | ID: mdl-33235795

ABSTRACT

Ectopic breast tissue can persist in the axilla due to lack of involution of mammary glands along the mammary lines. It is rare in men, and the malignant transformation to breast cancer has occasionally been described. Differential diagnosis of any axillary tumor should include breast cancer arising at ectopic sites.

7.
Inflamm Intest Dis ; 5(3): 109-116, 2020 Aug.
Article in English | MEDLINE | ID: mdl-32999883

ABSTRACT

BACKGROUND/AIMS: Among the severe immune-related adverse events (irAEs) that occur with immune checkpoint inhibitor (ICI) therapy, colitis is the most frequent one. This study aimed at describing the experience from the largest gastroenterology unit in Switzerland with immune checkpoint inhibitor-associated colitis (ICIAC), its clinical presentation, management, and outcomes. METHODS: We performed a retrospective review of patients who were referred for the evaluation of ICIAC between January 2011 and October 2018 to the Division of Gastroenterology and Hepatology, University Hospital Zurich. RESULTS: Thirty-three patients with immune-related colitis grade 3 or 4 met the inclusion criteria and were analyzed in detail: All patients had diarrhea, 64% had abdominal pain, 42% had bloody stool, 27% had emesis, and 18% developed fever. In total, 33% were successfully treated with corticosteroids alone; 66% were steroid-refractory and treated with infliximab or vedolizumab. Two of these patients developed severe complications requiring surgery. All patients reached complete remission of ICIAC and its symptoms. At colonoscopy, ulcerations were seen in 37% of steroid-refractory versus 63% of steroid-responsive cases. Deep histological ulcerations invading the submucosa were only present in steroid-refractory cases. CONCLUSION: ICIAC is a severe irAE which frequently requires high-dose steroids and a close follow-up due to deleterious complications. The detection of histologically diagnosed deep ulcerations may predict a steroid-refractory course and may warrant early application of infliximab. However, larger studies are required to confirm our findings.

8.
ESMO Open ; 4(Suppl 2): e000509, 2019.
Article in English | MEDLINE | ID: mdl-31423341

ABSTRACT

Tremendous progress in basic and clinical research has completely revolutionised the management of advanced melanoma, and this dramatic development is still ongoing. In this environment, state-of-the-art patient care is a major challenge. We describe how patient-centred medicine is organised in a leading referral centre that is also involved in early and late clinical trials and is part of a worldwide network for translational research.

9.
Melanoma Res ; 29(6): 648-654, 2019 12.
Article in English | MEDLINE | ID: mdl-30870270

ABSTRACT

Ipilimumab is approved for adjuvant melanoma treatment at a dose of 10 mg/kg, but its use is limited owing to high toxicity and treatment-associated costs. We retrospectively analyzed 29 patients who underwent complete resection of stage IIC-III melanoma and were treated with ipilimumab 3 mg/kg in an adjuvant setting. The aim was to assess development of adverse events (primary endpoint) and to evaluate survival outcomes (secondary endpoint) under adjuvant treatment with ipilimumab in a real-life setting. Immune-related adverse events (irAE) of all grades were reported in 72.4% of patients, grade 3 in 5.3% (n = 2), and none for grade 4 or 5. Immune-related hypophysitis resolved in 3/8 (37.5%) and immune-related thyroiditis in 7/10 (70%) cases, whereas the others remained on substitution drugs. The rest irAEs affected the gut (n = 8), skin (n = 5), liver (n = 2), and uvea (n = 2) and resolved completely. Only one patient required tumor necrosis factor-α owing to grade 3 colitis. Hospitalization was required in five cases owing to irAE (four colitis and one hypophysitis). At a median follow-up of 9.7 (1.7-16.8) months, 65.5% of the patients were free of disease. Median progression-free survival was 15.1 months, and median overall survival was not reached yet. Ipilimumab 3 mg/kg for the adjuvant treatment of high-risk patients with fully resected melanoma favors a better safety profile compared with the approved dose of 10 mg/kg in the same setting. Although its limited application owing lately promising data of antiprogrammed cell death protein-1 treatment, it may be considered as additional option or second-line treatment after fully resected disease recurrence under antiprogrammed cell death protein-1 treatment.


Subject(s)
Antineoplastic Agents, Immunological/therapeutic use , Ipilimumab/therapeutic use , Melanoma/drug therapy , Skin Neoplasms/drug therapy , Adolescent , Adult , Aged , Antineoplastic Agents, Immunological/pharmacology , Female , Humans , Ipilimumab/pharmacology , Male , Melanoma/pathology , Middle Aged , Neoplasm Staging , Retrospective Studies , Skin Neoplasms/pathology , Young Adult
10.
Dermatopathology (Basel) ; 6(1): 1-11, 2019.
Article in English | MEDLINE | ID: mdl-30800656

ABSTRACT

INTRODUCTION: Solar lentigines (SL) affect chronically UV-radiated skin. Treatment is often refractory. Deeper knowledge on its pathogenesis might improve therapeutic effects. MATERIAL AND METHODS: Morphological characterization of 190 SL was performed and epidermal thickness, pigment distribution, dendricity, and cornification grade were measured. Immunoreactivity was investigated using Melan A, Tyrosinase, MITF, p53, and CD20, as well as Notch1 using immunofluorescence. RESULTS: We found 2 groups of histological patterns, i.e., either acanthotic or atrophic epidermis. Lesions with basket-woven cornification and atrophic epidermis were observed in 6 out of 9 and 14 out of 16 cases from the face, respectively. Consistency of areas with a high pigmentation was observed in 96-97% of the cases. Hyperpigmentation grade and acanthosis or cornification disorders correlated positively in 88.5% of the cases. Overexpressed of p53 was found in 19 out of 20 lesions, presenting in a scattered distribution. A significant correlation of p53 and acanthosis (p = 0.003) and cornification grade (p = 0.0008) was observed. Notch1 was expressed in all SL, with the highest immunoreactivity in atrophic facial lesions. Lesions from the hands expressed Notch1 mainly in acanthotic areas with elongated rete ridges and less compact cornification. DISCUSSION: We suggest that Notch1-dependent keratinocytic malfunction causes the development of SL. Consequently, hyperpigmentation would be a result and not the primary cause of the pathogenesis. Confirmation of these findings might have clinical implications as hitherto treatment has mainly focused on melanocytes and pigmentation and not on the proliferation/differentiation balance of keratinocytes.

11.
Oncotarget ; 9(77): 34457-34458, 2018 Oct 02.
Article in English | MEDLINE | ID: mdl-30349640
12.
Dermatol Ther ; 31(6): e12692, 2018 11.
Article in English | MEDLINE | ID: mdl-30246910

ABSTRACT

Pruritus is associated with various skin diseases, dry skin, and with it an impaired skin barrier function. The study objective was to investigate short-term and long-term effects of two emollients on symptoms and skin barrier functions in xerotic eczema. Randomized, double-blind, study enrolling females/males, with bilateral itching. Two emollients, containing lactic acid and refined almond oil with/without polidocanol were administered on left versus right body sides. Itching severity, skin moisture, lipid content, and pH were assessed on Day 1, within 30-120 min after first administration, and on Days 7 and 14, and compared with baseline assessments. Severity of itching decreased 30 min after first administration of both emollients compared with baseline (p < .0001) and reached a maximum reduction of 63% (p < .0001) and 69% (p < .0001) on Day 14. Skin moisture and lipid content increased after first application, and further ameliorated within 14 days of treatment (p < .0001). Both emollients were tolerated well, and only a few adverse events were reported. This study confirmed the clinical efficacy of the two study emollients to substantially reduce itching already after first administration, and restore skin barrier integrity and thus should be considered as therapeutic approach for xerotic eczema.


Subject(s)
Eczema/drug therapy , Emollients/administration & dosage , Lactic Acid/administration & dosage , Plant Oils/administration & dosage , Pruritus/drug therapy , Skin/drug effects , Administration, Cutaneous , Adolescent , Adult , Aged , Double-Blind Method , Drug Administration Schedule , Eczema/diagnosis , Eczema/physiopathology , Emollients/adverse effects , Female , Humans , Lactic Acid/adverse effects , Male , Middle Aged , Plant Oils/adverse effects , Polidocanol/administration & dosage , Pruritus/diagnosis , Pruritus/physiopathology , Skin/innervation , Skin/pathology , Switzerland , Time Factors , Treatment Outcome , Young Adult
13.
Curr Oncol Rep ; 20(11): 87, 2018 09 24.
Article in English | MEDLINE | ID: mdl-30250984

ABSTRACT

PURPOSE OF REVIEW: As cancer remains an increasing problem in industrial countries, the incidence of melanoma has risen rapidly in many populations during the last decades and still continues to rise. Current strategies aiming to control the disease have largely focused on improving the understanding of the interplay of causal factors for this cancer. RECENT FINDINGS: Cutaneous melanoma shows clear differences in incidence, mortality, genomic profile, and anatomic presentation, depending on the country of residence, ethnicity, and socioeconomic status. Known risk factors are multiple atypical nevi, positive family and/or personal history, immune suppressive diseases or treatments, and fair skin phenotype. Besides new adjuvant therapeutic options, changed attitude toward leisure and sun exposure, primary prevention, and early detection are major contributors to disease control. Melanoma is a disease of multifactorial causality and heterogeneous presentation. Its subtypes differ in origin, anatomical site, role of UV radiation, and mutational profile. Better understanding of these differences may improve prevention strategies and therapeutic developments.


Subject(s)
Melanoma/epidemiology , Melanoma/pathology , Skin Neoplasms/epidemiology , Skin Neoplasms/pathology , Humans , Melanoma/genetics , Risk Factors , Skin Neoplasms/genetics , Ultraviolet Rays/adverse effects , Melanoma, Cutaneous Malignant
14.
Melanoma Res ; 28(3): 230-236, 2018 06.
Article in English | MEDLINE | ID: mdl-29485531

ABSTRACT

The development of cancer immunotherapy and targeted therapy has reached an important inflection point in the history of melanoma. Immune checkpoint inhibitors and kinase inhibitors are today's standard of care treatments in advanced melanoma patients. Treatment-related toxicities can be very intriguing and quite challenging. Sarcoidosis is a multisystemic granulomatous disease characterized by an aberrant immune response to unknown antigens, whereas sarcoid-like reactions (SLRs) refer to localized clinical features. We carried out a single-center observational study in patients with stage IIB-IV melanoma treated with BRAF/MEK inhibitors and immune checkpoint inhibitors. A description of the sarcoidosis-related manifestations was provided from patients' records. We observated eight cases of SLRs in a cohort of 200 patients. The clinical courses were characterized by a variety of symptoms, accompanied by cutaneous signs and extracutaneous manifestations such as bilateral, hilar lymphadenopathy. We identified a histologically granulomatous inflammation involving the skin, the lungs, and the lymph nodes. Two patients presented with cutaneous lesions only, and three patients had lung involvement only. Three patients achieved complete and partial response of the melanoma disease, and three patients had stable disease. Disease progression was documented in two patients. The reported immune-related adverse events were mild to severe and in most of the cases were continued without any treatment cessation. SLRs appear during treatment with both kinase and immune checkpoint inhibitors. Awareness of these can avoid misdiagnosis of disease progression and unnecessary treatment changes.


Subject(s)
Immunotherapy/methods , Melanoma/drug therapy , Sarcoidosis/etiology , Skin Neoplasms/drug therapy , Adult , Aged , Humans , Male , Melanoma/pathology , Middle Aged , Programmed Cell Death 1 Receptor/antagonists & inhibitors , Protein Kinase Inhibitors/adverse effects , Protein Kinase Inhibitors/therapeutic use , Retrospective Studies , Sarcoidosis/chemically induced , Sarcoidosis/pathology , Skin Neoplasms/pathology , Young Adult
16.
Dermatol Surg ; 42(7): 853-7, 2016 Jul.
Article in English | MEDLINE | ID: mdl-27341683

ABSTRACT

BACKGROUND: Quality-switched (QS) laser therapy is a safe and well-established treatment option for removing solar lentigines. Triple combination therapy (TCT) with the active pharmaceutical ingredients hydroquinone 5%, tretinoin 0.03%, and dexamethasone 0.03% is often used for skin-lightening. OBJECTIVE: This prospective, open-label trial compares the efficacy and safety of a QS Ruby laser (QSRL) and a TCT in the treatment of solar lentigines. METHODS: In total, 15 patients with symmetrically distributed solar lentigines on the back of both hands were included. The lesions on the back of the right hand were treated in one or 2 sessions with a QSRL, the ones on the back of the left hand with a TCT for 7 weeks accompanied by UV protection. Clinical results were evaluated 4 weeks, 8 weeks, and 20 weeks after baseline. RESULTS: Treatment with QSRL provided significant lightening (p = .01) compared with TCT. Both procedures were generally well-tolerated. Comparing the side effects, the laser produced significantly more crusting and hyperpigmentation than the TCT. CONCLUSION: Both QSRL and TCT were capable in reducing solar lentigines in Fitzpatrick skin Type I to IV with an acceptable side effect profile. The QSRL provides faster, superior, and long lasting lightening compared with TCT.


Subject(s)
Hand Dermatoses/therapy , Lasers, Solid-State/therapeutic use , Lentigo/therapy , Skin Cream/therapeutic use , Skin Lightening Preparations/therapeutic use , Aged , Dexamethasone/therapeutic use , Drug Combinations , Erythema/etiology , Female , Humans , Hydroquinones/therapeutic use , Lasers, Solid-State/adverse effects , Male , Middle Aged , Pain/etiology , Prospective Studies , Skin Cream/adverse effects , Skin Lightening Preparations/adverse effects , Tretinoin/therapeutic use
17.
Pediatr Dermatol ; 33(2): 184-90, 2016.
Article in English | MEDLINE | ID: mdl-26840644

ABSTRACT

BACKGROUND: Topical use of timolol for infantile hemangiomas has recently emerged with promising results. It is unknown whether topical ß-blockers act locally or if their effect is partly due to systemic absorption. This study investigates whether topically applied timolol is absorbed and reports on the efficacy of this treatment. METHODS: We treated 40 infants with small proliferating hemangiomas with topical timolol gel 0.5% twice daily and assessed urinary excretion and serum levels in a proportion of patients. Clinical response was evaluated on a visual analog scale of standardized photographs after 1, 2, 3, and 5 months. RESULTS: Forty infants with a median age of 18 weeks (range 2-35 wks) were included; 23 (58%) had superficial and 17 (42%) mixed-type hemangiomas. The median size was 3 cm(2) (range 0.1-15 cm(2) ) and nine hemangiomas were ulcerated. The hemangiomas improved significantly during treatment, with a median increase in visual analog scale of 7 points after 5 months (p < 0.001). Urinalysis for timolol was performed in 24 patients and was positive in 20 patients (83%). In three infants, serum levels of timolol were also measured and were all positive (median 0.16 ng/mL [range 0.1-0.18 ng/mL]). No significant side effects were recorded. CONCLUSION: Topical therapy with timolol is effective for infantile hemangiomas, but systemic absorption occurs. Serum levels in our patients were low, suggesting that using timolol for small hemangiomas is safe, but caution is advised when treating ulcerated or large hemangiomas, very young infants, or concomitantly using systemic propranolol.


Subject(s)
Adrenergic beta-Antagonists/administration & dosage , Hemangioma/drug therapy , Timolol/administration & dosage , Absorption, Physiological , Administration, Topical , Adrenergic beta-Antagonists/metabolism , Child, Preschool , Female , Humans , Infant , Infant, Newborn , Pregnancy , Timolol/metabolism
18.
Oncoimmunology ; 4(2): e988458, 2015 Feb.
Article in English | MEDLINE | ID: mdl-25949886

ABSTRACT

Sorafenib is a multi-kinase inhibitor used alone or in combination with dacarbazine to treat metastasized melanoma. Our study investigated the relationship between metabolic response assessed by PET-CT and global transcriptome changes during sorafenib and dacarbazine therapy in patients with advanced melanoma. We conducted an open-label, investigator-initiated study that enrolled 13 sorafenib-naïve Stage IV melanoma patients, whose metastases were accessible for repeated biopsies. Treatment regimen included orally administered sorafenib and intravenous dacarbazine. Biopsies of skin or superficial lymph node metastases were taken before treatment (baseline), during sorafenib and after dacarbazine therapy and used for transcriptional profiling and validation experiments. Serum samples were evaluated for cytokine production. Metabolic response to therapy was observed in 45.5% of patients. The study drugs were well tolerated. We observed a clear upregulation of interferon (IFN)-stimulated immune response genes in profiled metastases. The IFNγ-induced gene signature seemed to be enhanced after addition of dacarbazine to sorafenib. Serum IFNγ also increased during therapy, particularly after addition of dacarbazine. Induction of IFNγ stimulated genes correlating with increased serum IFNγ was predictive of better clinical outcome and responders who had significantly higher serum IFNγ levels lived longer. Our data reveal in situ changes in melanoma metastases during treatment with sorafenib and dacarbazine and suggest an additional mechanism of action through immunomodulation.

19.
Dermatopathology (Basel) ; 1(1): 35-46, 2014.
Article in English | MEDLINE | ID: mdl-27047921

ABSTRACT

BACKGROUND: Congenital melanocytic nevi (CMNs) are melanocytic neoplasms that can transform into melanoma. However, this development is impeded in the majority of cases and mostly affects patients with large or giant CMNs. METHODS: To elucidate mechanisms that keep CMNs from malignant transformation, CMN tissue biopsies were investigated for p-ERK and senescence markers by immunohistochemistry and for SOX10/CD271 (p75(NTR)) by immunofluorescence. CMN cells were cultivated, and MTT assays were performed for evaluating cell viability. Mutation status for NRAS and BRAF was performed by real-time PCR. RESULTS: 13 CMNs (from patients aged 0.5-11.8 years, mean: 2.7) showed immunoreactivity for SOX10/CD271 (p75(NTR)) in 34.2%. p-ERK was immunoreactive in 80% (4/5); ß-galactosidase was significantly stronger expressed in CMNs compared to melanocytic nevi of patients over 70 years (p = 0.0085). The 5 CMN cultures were immunoreactive for SOX10/CD271 (p75(NTR)) in 36.7%. By silencing SOX10 by siRNA in 2 CMN cell cultures, cell viability decreased significantly. NRAS(Q61K) mutation was found in 91.7% (11/12) and BRAF(V600E) in 6.3% of all analyzable CMNs (1/16). CONCLUSIONS: Oncogene-induced senescence might prevent malignant transformation through activation of the mitogen-activated protein kinase pathway. SOX10 is necessary for the viability of human CMN cell cultures and may be responsible for clinical changes during aging.

20.
Dermatology ; 227(4): 361-6, 2013.
Article in English | MEDLINE | ID: mdl-24281776

ABSTRACT

BACKGROUND: Split-thickness skin graft (STSG) donor sites sometimes cause more postoperative morbidity for patients than the wound covered with the graft. Yet, there is no consensus on which dressings are best suited to treat these donor sites. OBJECTIVE: To evaluate two commonly used modern wound dressings in the postoperative healing of STSG donor sites in a prospective randomized controlled trial. METHODS: 38 patients were randomly assigned to treatment of an STSG donor site with an alginate dressing or a polyurethane film dressing. The primary outcome measures were postoperative pain scores, secondary outcome variables were time to epithelialization, dressing changes and complications. RESULTS: Postoperative pain on day 1 was significantly lower in the polyurethane film group (2.05 vs. 0.79, p = 0.035) as compared to the alginate group. This difference was not detected on day 5 (0.89 vs. 0.53, p = 0.52). Time to epithelialization did not differ significantly between the two dressing groups. There were more dressing changes in the polyurethane film group and problems with leakage. CONCLUSION: Whereas film dressings resulted in initially lower pain scores, alginate dressings caused fewer additional dressing changes and less leakage.


Subject(s)
Alginates/therapeutic use , Biocompatible Materials/therapeutic use , Pain, Postoperative/drug therapy , Polyurethanes/therapeutic use , Skin Transplantation , Transplant Donor Site/surgery , Adult , Aged , Aged, 80 and over , Bandages , Female , Glucuronic Acid/therapeutic use , Hexuronic Acids/therapeutic use , Humans , Male , Middle Aged , Re-Epithelialization , Time Factors
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