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Li X, Xing L, Lai R, Yuan C, Humbert P. Literature mapping: association of microscopic skin microflora and biomarkers with macroscopic skin health. Clin Exp Dermatol 2020; 46:21-27. [PMID: 32786033 PMCID: PMC7754415 DOI: 10.1111/ced.14353] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 03/09/2020] [Accepted: 05/27/2020] [Indexed: 10/27/2022]
Abstract
Associations between skin microbes or biomarkers and pathological conditions have been reported in the literature. However, there is a lack of clarity on the interaction between the coexistence of common skin microbes with skin physiology and subsequent development of clinical symptoms, and the role of biomarkers in mediating these changes before the development of skin disease. In this review, we aim to identify areas in which extensive research for the studied factors has already been conducted, and which research areas are under-represented. The SciFinder database was searched for articles containing key words including specific skin microbes, biomarkers, skin physiology and diseases from the beginning of the SciFinder data record to 26 April 2016, and we included an additional relevant recent publication from our group. Among the 8000 + articles selected, the frequency of keyword pairs between two roles [microscopic markers (microflora or biomarkers) and reactions (skin physiology or clinical symptoms, or skin disease)] was investigated. Associated research between the individual factors such as skin microflora or biomarkers (chosen based on our earlier publication) and specific biophysical parameters, symptoms or skin disease was identified. The present research heatmap emphasizes the significance of a structured review of research on concerned factor associations to identify early/subclinical clues that can be used to prevent progression to overt skin disease with the help of precise skin care or early intervention, as indicated by skin microflora, biomarkers and an interactive skin biophysics profile. The findings provide a novel approach to explore such associations and may guide future research directed towards predicting disease from early/subclinical symptoms.
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Affiliation(s)
- X Li
- Clinical Science APAC, Johnson & Johnson (China) Ltd, Shanghai Technology and Research Center, Shanghai, China
| | - L Xing
- Clinical Science APAC, Johnson & Johnson (China) Ltd, Shanghai Technology and Research Center, Shanghai, China
| | - R Lai
- External Innovation, Johnson & Johnson (China) Ltd, Minhang District, Shanghai, China
| | - C Yuan
- Skin and Cosmetic Research Department, Shanghai Skin Disease Hospital, Shanghai, China
| | - P Humbert
- Department of Dermatology, Research and Clinic Centre on the Tegument, Clinical Investigation Center, Besançon University Hospital, Besançon, France.,University of Franche-Comté, Inserm U1098, Besançon, France
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Couffignal C, Kolta S, Flamant M, Cazanave C, Haymann JP, Mentré F, Duval X, Leport C, Raffi F, Chêne G, Salamon R, Moatti JP, Pierret J, Spire B, Brun-Vézinet F, Fleury H, Masquelier B, Peytavin G, Garraffo R, Costagliola D, Dellamonica P, Katlama C, Meyer L, Salmon D, Sobel A, Cuzin L, Dupon M, Le Moing V, Marchou B, May T, Morlat P, Rabaud C, Waldner-Combernoux A, Hardel L, Reboud P, Couffin-Cadiergues S, Marchand L, Assuied A, Carrieri P, Habak S, Couturier F, Jadand C, Perrier A, Préau M, Protopopescu C, Schmit J, Chennebault J, Faller J, Magy-Bertrand N, Chirouze C, Humbert P, Longy-Boursier, Neau D, Granier P, Ansart S, Verdon R, Merrien D, Chevojon P, Sobel A, Levy Y, Piroth L, Perronne C, Froguel E, Ceccaldi J, Chidiac C, Grégoire V, Reynes J, Fuzibet JG, Arsac P, Bouvet E, Bricaire F, Monsonego J, Girard P, Guillevin L, Herson S, Molina J, Pialoux G, Sain O, Sellier P, Roblot F, Bani-Sadr F, Michelet C, Lucht F, Debord C, Martin T, De Jaureguiberry J, Bernard L. Nevirapine Use Is Associated with Higher Bone Mineral Density in HIV-1 Positive Subjects on Long-Term Antiretroviral Therapy. AIDS Res Hum Retroviruses 2020; 36:399-405. [PMID: 31891665 DOI: 10.1089/aid.2019.0229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
We assessed bone mineral density (BMD) in a cohort of human immunodeficiency virus (HIV)-positive patients after a median of 11 years of combination antiretroviral therapy (cART) and evaluated the respective role of HIV infection and antiretroviral drugs (ARVs). A cross-sectional study of 162 participants (131 male) from the ANRS-C08 cohort was performed with bone dual-energy X-ray absorptiometry (DXA) scans and renal assessment. The window of exposure to ARVs was defined as an exposure of more than six cumulative months during the last 3 years before the DXA evaluation to account for a cumulative exposure that could affect bone remodeling. The association with low BMD (Z-score < -2) was assessed by a multiple logistic regression model. The study population was 50 years (median), hepatitis C virus (HCV) (18%), and hepatitis B virus (HBV) (8%) coinfection with HIV-RNA <50 c/mL in 89%, median CD4 of 619/mm3. Prevalence of low BMD was 18% in males and 6% in females. The factors associated with a Z-score < -2 in males were uric acid renal loss [adjusted odds ratio (aOR): 6.1; 95% confidence interval (CI): 1.2-31.5; p = .03], HCV coinfection (aOR: 4.0; 95% CI: 1.3-12.2; p = .02), and less frequent window of exposure to nevirapine (NVP) (aOR: 0.1; 95% CI: 0.02-0.6; p = .01). For the full study sample, there was a strong positive association between duration of exposure to NVP and lumbar spine Z-score (p = .004). HIV-positive patients exposed to long-term cART have a high incidence of low BMD. Tenofovir disoproxil fumarate and ritonavir-boosted protease inhibitors did not seem to be associated with increased risk of low BMD, whereas NVP exposure appeared to have an independent positive association.
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Affiliation(s)
- Camille Couffignal
- Infection, Antimicrobials, Modeling, Evolution (IAME) UMR 1137, INSERM and Université of Paris, Paris, France
| | - Sami Kolta
- Department of Rheumatology, University Hospital Cochin, Assistance Publique–Hôpitaux de Paris, INSERM UMR-1153, Paris, France
| | - Martin Flamant
- Department of Physiology, University Hospital Bichat, Assistance Publique–Hôpitaux de Paris, Paris, France
| | - Charles Cazanave
- Infectious Diseases Department, University Hospital Bordeaux, Bordeaux, France
| | - Jean-Philippe Haymann
- Department of Physiology, University Hospital Tenon, and INSERM UMR_S1155, Paris, France
| | - France Mentré
- Infection, Antimicrobials, Modeling, Evolution (IAME) UMR 1137, INSERM and Université of Paris, Paris, France
| | - Xavier Duval
- Infection, Antimicrobials, Modeling, Evolution (IAME) UMR 1137, INSERM and Université of Paris, Paris, and INSERM CIC1425, Paris, France
| | - Catherine Leport
- Unité COREB (Coordination du Risque Epidémique et Biologique), Assistance Publique–Hôpitaux de Paris, Paris, France
| | - François Raffi
- Infectious Diseases Department, University Hospital Hotel-Dieu, and INSERM CIC 1413, University of Nantes, Nantes, France
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Abstract
OBJECTIVE In venous leg ulcer (VLU), the impaired healing has been shown to be associated with excessive levels of protease activities such as matrix metalloproteinases (MMPs) and elastases found in exudates. The present study focused on exudates absorption and proteases trapping capacity of a new generation of polyacrylate superabsorbent, Tegaderm superabsorber (TS), compared with a traditional dressing such as Zetuvit. METHOD We studied the proteases implicated in VLU (MMP-1, MMP-2, MMP-9 and PMN elastase). Absorption was tested using an artificial exudate like fluid, over 30 minutes. The protein trapping ability was obtained using ELISA assays (enzyme-linked immunosorbent assay) to determine the amount retained by the dressings from spiked fluid samples. RESULTS TS had a higher exudate absorption capacity (72.8±1.7%) compared with the standard dressing (36.5±1.6%), and was also able to trap and retain proteases while the standard dressing released them. The difference was shown to be much larger for MMP-2 and PMN elastase. CONCLUSION In our knowledge, this is the first comparative in vitro study evaluating absorption capacity as well as protease trapping capacity of a polyacrylate dressing for the four most implicated proteases in VLU. TS could be an appropriate alternative to improve the management of VLU by trapping MMPs and PMN elastse with a particularly high affinity for MMP-2 and PMN elastase.
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Affiliation(s)
- P Humbert
- Professor of Dermatology, Dermatology, University Hospital, 2 boulevard Fleming, 25030 Besançon; University of Franche-Comté, INSERM UMR1098; SFR FED 4234 IBCT, Besançon, France
| | - C Courderot-Masuyer
- Doctor of Pharmaceutical Science, Laboratoire Bioexigence, 8 rue Alfred de Vigny, 25000 Besançon, France
| | - S Robin
- Doctor of the University of Franche-Comté, Research Engineer, Dermatology, University Hospital, 2 boulevard Fleming, 25030 Besançon; University of Franche-Comté, INSERM UMR1098; SFR FED 4234 IBCT, Besançon, France
| | - D Oster
- Technical Engineer, Laboratoire national de métrologie et d'essais, 29 avenue Roger Hennequin, 78197 Trappes cedex
| | - R Pegahi
- Medical Affairs Manager, Critical and chronic care solution Division, 3M France, Boulevard de l'Oise, 95006 Cergy Pontoise
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Lombart F, Dillies A, Senet P, Pourchot D, Oro S, Modiano P, Barete S, Perceau G, Humbert P, Brault F, Poreaux C, Lorriaux A, Lok C, Chaby G. Calciphylaxie chez des patients non insuffisants rénaux : série de 10 cas. Ann Dermatol Venereol 2018. [DOI: 10.1016/j.annder.2018.09.483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Ellis S, Dew A, Lim A, Novita N, Borg J, Skinner C, Dawson M, Liao Y, Shi W, Walkley C, Purton L, Humbert P. The Cell Polarity and Scaffolding Protein, PAR3, Acts as A Tumour Suppressor in Acute Myeloid Leukemia Through Regulation of the Hippo Pathway. Exp Hematol 2018. [DOI: 10.1016/j.exphem.2018.06.217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Affiliation(s)
- P. Humbert
- University of Franche-Comté; Besancon France
| | - L. Louvrier
- University of Franche-Comté; Besancon France
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Rahrovan S, Fanian F, Mehryan P, Humbert P, Firooz A. Male versus female skin: What dermatologists and cosmeticians should know. Int J Womens Dermatol 2018; 4:122-130. [PMID: 30175213 PMCID: PMC6116811 DOI: 10.1016/j.ijwd.2018.03.002] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 02/23/2018] [Accepted: 03/04/2018] [Indexed: 02/08/2023] Open
Abstract
Introduction The skin is important for the perception of health and beauty. Knowledge of the physiological, chemical, and biophysical differences between the skin of male and female patients helps dermatologists develop a proper approach not only for the management of skin diseases but also to properly take care of cosmetic issues. The influence of genetic and environmental factors on skin characteristics is also critical to consider. Methods A literature search of PubMed and Google was conducted to compare the biophysical and biomechanical properties of the skin of male and female patients using the keywords "skin", "hydration", "water loss", "sebum", "circulation", "color", "thickness", "elasticity", "pH", "friction", "wrinkle", "sex", "male", and "female". Results A total of 1070 titles were found. After removing duplications and non-English papers, the number was reduced to 632. Of the 632 titles, 57 were deemed suitable for inclusion in this review. The studies show that the skin parameters of hydration, transepidermal water loss, sebum, microcirculation, pigmentation, and thickness are generally higher in men but skin pH is higher in women. Conclusions These parameters can be considered as age markers in some cases and are susceptible to change according to environment and life style. Biometrological studies of the skin provide useful information in the selection of active principles and other ingredients of formulations to develop a specific approach for cosmetic treatments.
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Affiliation(s)
- S Rahrovan
- Center for Research and Training in Skin Disease and Leprosy, Tehran University of Medical Sciences, Tehran, Iran
| | - F Fanian
- Research and Studies Center on the Integument, Department of Dermatology, Clinical Investigation Center, Besançon University Hospital, University of Franche-Comté, Besançon, France
| | - P Mehryan
- Center for Research and Training in Skin Disease and Leprosy, Tehran University of Medical Sciences, Tehran, Iran
| | - P Humbert
- Research and Studies Center on the Integument, Department of Dermatology, Clinical Investigation Center, Besançon University Hospital, University of Franche-Comté, Besançon, France
| | - A Firooz
- Center for Research and Training in Skin Disease and Leprosy, Tehran University of Medical Sciences, Tehran, Iran
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Mahevas T, Jachiet M, Servy A, Livideanu CB, Cribier B, Frances C, Le Moigne M, Sbidian E, Bouaziz JD, Descamps V, D’incan M, Humbert P, Beylot-Barry M, Passeron T, Arnulf B, Harel S, Sassolas B, de Moreuil C, Hermine O, Dupuy A, Barbarot S, Debardieux S, Carpentier O, Brault F, Schmutz JL, Thomas-Beaulieu D, Zarnitsky C, Limal N, Le-Bras F, Osio A, Battistella M, Tauber M, Mékinian A, Fain O. Caractéristiques clinicobiologiques, facteurs pronostiques et prise en charge thérapeutique du scléromyxœdème : étude rétrospective multicentrique. Ann Dermatol Venereol 2017. [DOI: 10.1016/j.annder.2017.09.157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Humbert P, Guichard A, Bennani I, Chiheb S. [Giardia duodenalis and its involvement in skin diseases]. Ann Dermatol Venereol 2017; 144:676-684. [PMID: 28965699 DOI: 10.1016/j.annder.2017.08.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 02/01/2017] [Accepted: 08/07/2017] [Indexed: 10/18/2022]
Abstract
BACKGOUND Over the last thirty years, the scientific community has become increasingly interested in the intestinal flora, whether commensal or pathogenic, and its impact on other organs. In dermatology, the correlation between intestinal microbial agents and cutaneous lesions is well established. Giardia duodenalis, an intestinal parasite, has been particularly widely studied. The aim of this work is to provide a review of studies demonstrating the involvement of G. duodenalis in various forms of dermatosis. PATIENTS AND METHODS The data were obtained by an English-language literature search of Medline, PubMed and Google Scholar for the period 1975-2015. Among the thirty case reports since 1976, we selected the twenty most objective and clinically relevant. RESULTS AND DISCUSSION This review demonstrates that intestinal giardiasis may be an etiological factor, either alone or in combination with other agents, of various dermatoses through inflammatory and allergic mechanisms or intestinal hyperpermeability. The mucocutaneous lesions are varied: urticaria, angioedema, atopic dermatitis, erythema nodosum, Wells syndrome, among others. The role and origin of the infection are often unknown, and it is thus difficult to determine the interval between parasite infestation and the onset of skin lesions. Consequently, a fecal examination to identify G. duodenalis should be considered in chronic urticaria or angioedema, and where atopic dermatitis occurs in adulthood without any specific etiology. Therapeutic test should be done in every suspicion.
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Affiliation(s)
- P Humbert
- Service de dermatologie, centre d'études et de recherche sur le tégument (CERT), centre d'investigation clinique (CIC BT506), université de Franche-Comté, centre hospitalier universitaire Besançon, Inserm UMR1098, SFR FED 4234 IBCT, 25030 Besançon, France; Fondation Cheikh Khalifa Mohammed VI, Casablanca, Maroc.
| | - A Guichard
- Service de dermatologie, centre d'études et de recherche sur le tégument (CERT), centre d'investigation clinique (CIC BT506), université de Franche-Comté, centre hospitalier universitaire Besançon, Inserm UMR1098, SFR FED 4234 IBCT, 25030 Besançon, France
| | - I Bennani
- Fondation Cheikh Khalifa Mohammed VI, Casablanca, Maroc
| | - S Chiheb
- Fondation Cheikh Khalifa Mohammed VI, Casablanca, Maroc; Faculté de médecine et de pharmacie, université Hassan II, Casablanca, Maroc
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Goorochurn R, Viennet C, Tissot M, Locatelli F, Granger C, Varin-Blank N, Humbert P, Le Roy C. Differential morphological and functional features of fibroblasts explanted from solar lentigo. Br J Dermatol 2017; 177:e109-e111. [DOI: 10.1111/bjd.15386] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- R. Goorochurn
- LIBC, Engineering and Cutaneous Biology Laboratory; UMR 1098 INSERM; EFS BFC; University of Bourgogne Franche-Comté; Besançon France
- UMR U978 INSERM; Bobigny Cedex France
- ASIH; Signaling Adaptors in Hematology; University SPC; Paris 13, UFR-SMBH; Labex INFLAMEX; Bobigny Cedex France
- DERMANCE Laboratoire; Dermo-cosmetic and Mature Skin Expertise Paris; France
| | - C. Viennet
- LIBC, Engineering and Cutaneous Biology Laboratory; UMR 1098 INSERM; EFS BFC; University of Bourgogne Franche-Comté; Besançon France
| | - M. Tissot
- LIBC, Engineering and Cutaneous Biology Laboratory; UMR 1098 INSERM; EFS BFC; University of Bourgogne Franche-Comté; Besançon France
| | - F. Locatelli
- Department of Dermatology, Research and Studies Center on the Integument (CERT); Clinical Investigation Center (CIC 1431); Besançon University Hospital; Besançon France
| | - C. Granger
- DERMANCE Laboratoire; Dermo-cosmetic and Mature Skin Expertise Paris; France
| | - N. Varin-Blank
- UMR U978 INSERM; Bobigny Cedex France
- ASIH; Signaling Adaptors in Hematology; University SPC; Paris 13, UFR-SMBH; Labex INFLAMEX; Bobigny Cedex France
| | - P. Humbert
- LIBC, Engineering and Cutaneous Biology Laboratory; UMR 1098 INSERM; EFS BFC; University of Bourgogne Franche-Comté; Besançon France
- Department of Dermatology, Research and Studies Center on the Integument (CERT); Clinical Investigation Center (CIC 1431); Besançon University Hospital; Besançon France
| | - C. Le Roy
- UMR U978 INSERM; Bobigny Cedex France
- ASIH; Signaling Adaptors in Hematology; University SPC; Paris 13, UFR-SMBH; Labex INFLAMEX; Bobigny Cedex France
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Humbert P, Fanian F, Lihoreau T, Jeudy A, Pierard G. Bateman purpura (dermatoporosis): a localized scurvy treated by topical vitamin C - double-blind randomized placebo-controlled clinical trial. J Eur Acad Dermatol Venereol 2017; 32:323-328. [DOI: 10.1111/jdv.14525] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Accepted: 07/13/2017] [Indexed: 11/27/2022]
Affiliation(s)
- P. Humbert
- Department of Dermatology; Research and Studies Center on the Integument (CERT); Clinical Investigation Center (CIC BT506); Besançon University Hospital; Besançon France
- INSERM UMR1098; SFR FED 4234 IBCT; University of Franche-Comté; Besançon France
| | - F. Fanian
- Department of Dermatology; Research and Studies Center on the Integument (CERT); Clinical Investigation Center (CIC BT506); Besançon University Hospital; Besançon France
| | - T. Lihoreau
- Department of Dermatology; Research and Studies Center on the Integument (CERT); Clinical Investigation Center (CIC BT506); Besançon University Hospital; Besançon France
| | - A. Jeudy
- Department of Dermatology; Research and Studies Center on the Integument (CERT); Clinical Investigation Center (CIC BT506); Besançon University Hospital; Besançon France
| | - G.E. Pierard
- Laboratory of Skin Bioengineering and Imaging (LABIC); Department of Clinical Sciences; University of Liège; Liège Belgium
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Elfatoifi F, Fanian F, Chiheb S, Humbert P. Maladie de Hailey-Hailey : efficacité de l’association doxycycline et vitamine PP. Ann Dermatol Venereol 2017; 144:216-217. [DOI: 10.1016/j.annder.2016.09.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 07/24/2016] [Accepted: 09/14/2016] [Indexed: 10/20/2022]
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Piérard GE, Nizet JL, Humbert P. [New paradigms and metaphors in cutaneous melanoma treatment]. Rev Med Liege 2016; 71:562-566. [PMID: 28387097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In recent years, new drugs have been designed for treating advanced cutaneous malignant melanoma, in particular the metastases. They afford modest benefits despite the fact they are commonly heralded as breakthroughs in the lay press and by some medical opinion leaders. Unfortunately, the use of inflated descriptors of the drug efficacy leads to misunderstandings among the clinicians in charge of patients. Currently, vemurafenib, ipilimumab, pembrolizumab and nivolumab have demonstrated their relative activity in the control of advanced malignant melanoma. The results expected from surrogate markers of efficacy are magnified and idealized regarding the expectations from many patients. The recent therapeutic advance improves the median overall survival for a few months. Some combined treatments could possibly boost the current beneficial effects.
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Affiliation(s)
- G E Piérard
- Laboratoire de Bioingénierie et d'Imagerie cutanée, Département des Sciences Cliniques, Université de Liège
- Hôpital Saint-Jacques, Service de Dermatologie, Université de Franche-Comté, Besançon, France
| | - J L Nizet
- Service de Chirurgie Plastique, Maxillo-Faciale et Microchirurgie
| | - P Humbert
- Hôpital Saint-Jacques, Service de Dermatologie, Université de Franche-Comté, Besançon, France
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14
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Ma YF, Yuan C, Jiang WC, Wang XL, Humbert P. Reflectance confocal microscopy for the evaluation of sensitive skin. Skin Res Technol 2016; 23:227-234. [PMID: 27782310 DOI: 10.1111/srt.12327] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/23/2016] [Indexed: 11/29/2022]
Abstract
BACKGROUND Nowadays, the diagnosis for sensitive skin relies on subjective assessment or on the combination of subjective and objective evaluation. No quantitative evaluation is available. It could be expected that confocal microscopy imaging could be of interest to better define the condition. METHODS Total 166 healthy female subjects were recruited in this study. Firstly, all subjects completed the sensitive questionnaire. Then, the cutaneous structures were measured by the reflectance confocal microscopy (RCM) on the face and fossa cubitalia. The lactic acid sting test was conducted finally. According to the results of self-perception sensitive skin questionnaire and lactic acid stinging test to evaluate facial skin sensitivity the both positive subjects were regarded as sensitive skin group and both negative group as healthy control group. RESULT The results of RCM indicating that the proportion of 'disarranged honeycomb pattern' and 'spongiform edema' in the sensitive group and healthy control group were statistically different (P < 0.05), respectively; The following report 'damaged dermal papilla rings' was not a distinctive pattern, with no significant statistical difference (P > 0.05). The epidermal thickness was 38.88 ± 6.81 μm, healthy control group was 40.31 ± 9.37 μm in, respectively, sensitive skin group and healthy control group, there was no significant statistical difference between the two groups (P > 0.05). The honeycomb structure depth of sensitive group was 20.57 ± 4.86 μm. It was for 23.27 ± 6.38 μm, healthy control group the difference being statistically different between the two groups (P < 0.05). CONCLUSION Based on the RCM results, 'epidermal honeycomb structure' and 'spongiform edema' may be used as new skin signs of RCM evaluation of sensitive skin effectively. Indeed, sensitive skin honeycomb structure depth was thinner compared with healthy control group. Such a specific pattern has good clinical and monitoring value for the further exploration. RCM could provide new data and patterns for the evaluation of sensitive skin.
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Affiliation(s)
- Y-F Ma
- Department of Skin and Cosmetic Research, Shanghai Skin Disease Hospital, Shanghai, China
| | - C Yuan
- Department of Skin and Cosmetic Research, Shanghai Skin Disease Hospital, Shanghai, China
| | - W-C Jiang
- Department of Skin and Cosmetic Research, Shanghai Skin Disease Hospital, Shanghai, China
| | - X-L Wang
- Department of Phototherapy, Shanghai Skin Disease Hospital, Shanghai, China
| | - P Humbert
- Research and Studies Center on the Integument (CERT), Department of Dermatology, Clinical Investigation Center (CIC INSERM 1431), Besançon University Hospital, Besançon, France.,INSERM UMR1098, FED4234 IBCT, University of Franche-Comté, Besançon, France
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15
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Elfatoifi FZ, Chiheb S, Humbert P. [Infrapatellar hypertrichosis in adult dermatomyositis]. Ann Dermatol Venereol 2016; 144:161-162. [PMID: 27765415 DOI: 10.1016/j.annder.2016.07.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 07/04/2016] [Accepted: 07/26/2016] [Indexed: 10/20/2022]
Affiliation(s)
- F-Z Elfatoifi
- Service de dermatologie, CHU Ibn Roch, 20000 Casablanca, Maroc.
| | - S Chiheb
- Service de dermatologie, CHU Ibn Roch, 20000 Casablanca, Maroc
| | - P Humbert
- Service de dermatologie, centre d'études et de recherche sur le tégument (CERT), centre d'investigation clinique (CIC BT506), CHRU de Besançon, 25030 Besançon cedex, France; Inserm UMR1098, SFR FED 4234 IBCT, université de Franche-Comté, CHRU de Besançon, 25030 Besançon cedex, France
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16
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Lindley RA, Humbert P, Larner C, Akmeemana EH, Pendlebury CRR. Association between targeted somatic mutation (TSM) signatures and HGS-OvCa progression. Cancer Med 2016; 5:2629-40. [PMID: 27485054 PMCID: PMC5055158 DOI: 10.1002/cam4.825] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2015] [Revised: 06/08/2016] [Accepted: 06/13/2016] [Indexed: 12/30/2022] Open
Abstract
Evidence already exists that the activation‐induced cytidine deaminase (AID/APOBEC) and the adenosine deaminase (ADAR) families of enzymes are implicated as powerful mutagens in oncogenic processes in many somatic tissues. Each deaminase is identified by the DNA or RNA nucleotide sequence (“motif”) surrounding the nucleotide targeted for deamination. The primary objective of this study is to develop an in silico approach to identify nucleotide sequence changes of the target motifs of key deaminases during oncogenesis. If successful, a secondary objective is to investigate if such changes are associated with disease progression indicators that include disease stage and progression‐free survival time. Using a discovery cohort of 194 high‐grade serous ovarian adenocarcinoma (HGS‐OvCa) exomes, the results confirm the ability of the novel in silico approach used to identify changes in the preferred target motifs for AID, APOBEC3G, APOBEC3B, and ADAR1 during oncogenesis. Using this approach, a set of new cancer‐progression associated signatures (C‐PASs) were identified. Furthermore, it was found that the C‐PAS identified can be used to differentiate between the cohort of patients that remained progression‐free for longer than 60 months, from those in which disease progressed within 60 months (sensitivity 95%, specificity 90%). The spectrum of outcomes observed here could provide a foundation for future clinical assessment of susceptibility variants in ovarian, and several other cancers as disease progresses. The ability of the in silico methodology used to identify changes in deaminase motifs during oncogenesis also suggests new links between immune system function and tumorigenesis.
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Affiliation(s)
- Robyn A Lindley
- Department of Pathology, University of Melbourne, Parkville, Victoria, 3010, Australia. .,GMDx Pty Ltd, Melbourne, Victoria, 3000, Australia.
| | - Patrick Humbert
- Department of Pathology, University of Melbourne, Parkville, Victoria, 3010, Australia.,Department of Biochemistry and Molecular Biology, University of Melbourne, Parkville, Victoria, 3010, Australia.,Cell Cycle and Cancer Genetics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Victoria, 3002, Australia.,Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Cliff Larner
- Swinburne University of Technology, Hawthorn, Victoria, 3132, Australia
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17
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Chen A, Sceneay J, Gödde N, Thompson E, Humbert P, Möller A. Abstract B48: The effects of different types of hypoxia on tumor progression in breast cancer. Cancer Res 2016. [DOI: 10.1158/1538-7445.tummet15-b48] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Hypoxia, the state of low oxygen conditions, occurs frequently in solid tumors and is a poor prognostic factor. The expression of Hif-1α,the main mediator of the hypoxic response pathway, and the subsequent up-regulation of its target genes have been implicated in tumor growth, invasion, angiogenesis, therapy resistance and metastasis. There are two forms of hypoxia present in a growing tumor: chronic hypoxia (caused by limitations in oxygen diffusion from abnormal tumor vasculature) and intermittent hypoxia (caused by the aberrant, repeated and temporary closing and re-opening of blood vessels, leading to fluctuations in oxygen supply). This study investigates the phenotypes endowed by different forms of hypoxia that mediate metastatic potential in a syngeneic mouse model of breast cancer.
By exposing murine breast cancer cells to 9 days of 20% O2 (normoxia), 1% O2 (chronic hypoxia) or alternating 24 hour cycles in 20% O2 and 1% O2 (intermittent hypoxia), we observe that intermittent hypoxia produces tumor cells with greater metastatic potential. These treatments produce no difference in primary tumor growth when orthotopically injected into the mammary fat pad of female C57Bl/6 mice. However, intermittent hypoxia-treated cells give rise to a greater number of and larger lung metastases when injected intravenously via the tail-vein of female C57Bl/6 mice. Intermittent hypoxia, but not chronic hypoxia, up-regulated the expression of genes that predict lung metastasis in breast cancer, endowed cells with an enhanced ability for anchorage-independent growth and produced greater clonal diversity. Furthermore, intermittent hypoxia also caused a switch to glycolysis in cells and induced a pro-tumorigenic, immunosuppressive secretory profile in vitro. Finally, intermittent hypoxia up-regulated the expression of mammary stem cell genes, increased expression of stem cell marker Sca-1 as well as CD14, and generated tumor-initiating cells at a higher frequency as evidenced by in vivo limiting dilution assays.
This work demonstrates that intermittent hypoxia enhances metastatic seeding and outgrowth by priming cells intrinsically to metastasize, while activating co-operating factors that act extrinsically to form a permissive, immunosuppressive microenvironment. By delineating the contributions of different forms of hypoxia to metastasis, critical molecular mediators can be identified in aid of the development of efficacious therapies that could inhibit, prevent or cure metastatic disease.
Citation Format: Anna Chen, Jaclyn Sceneay, Nathan Gödde, Erik Thompson, Patrick Humbert, Andreas Möller. The effects of different types of hypoxia on tumor progression in breast cancer. [abstract]. In: Proceedings of the AACR Special Conference on Tumor Metastasis; 2015 Nov 30-Dec 3; Austin, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(7 Suppl):Abstract nr B48.
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Affiliation(s)
- Anna Chen
- 1Peter MacCallum Cancer Centre, Melbourne, Australia,
| | - Jaclyn Sceneay
- 2QIMR Berghofer Medical Research Institute, Brisbane, Australia,
| | - Nathan Gödde
- 1Peter MacCallum Cancer Centre, Melbourne, Australia,
| | - Erik Thompson
- 3Institute of Health and Biomedical Innovation and School of Biomedical Sciences, Brisbane, Australia
| | | | - Andreas Möller
- 2QIMR Berghofer Medical Research Institute, Brisbane, Australia,
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18
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Sbidian E, Hotz C, Seneschal J, Maruani A, Amelot F, Aubin F, Paul C, Beylot Barry M, Humbert P, Dupuy A, Caux F, Dupin N, Modiano P, Lepesant P, Ingen-Housz-Oro S, Mahé E, Bachelez H, Chosidow O, Wolkenstein P. Antitumour necrosis factor-α therapy for hidradenitis suppurativa: results from a national cohort study between 2000 and 2013. Br J Dermatol 2015; 174:667-70. [PMID: 26406350 DOI: 10.1111/bjd.14199] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- E Sbidian
- AP-HP, Département de Dermatologie, UPEC, Hôpitaux Universitaires Henri Mondor, Créteil, F-94010, France. .,INSERM, Centre d'Investigation Clinique 1430, Créteil, F-94010, France. .,EA 7379 EpiDermE, UPEC, Université Paris-Est Créteil, Créteil, F-94010, France.
| | - C Hotz
- AP-HP, Département de Dermatologie, UPEC, Hôpitaux Universitaires Henri Mondor, Créteil, F-94010, France
| | - J Seneschal
- Département de Dermatologie, Centre de Référence des Maladies Cutanées Rares, INSERM U1035, Université de Bordeaux, Hôpital Saint-André, Bordeaux, F-33000, France
| | - A Maruani
- Service de Dermatologie, Hôpitaux Universitaires de Tours, Hôpital Trousseau, Université François Rabelais, Tours, F-37000, France
| | - F Amelot
- Département de Dermatologie, UMR CNRS 5165, INSERM 1056, Université Paul Sabatier, Hôpitaux Universitaires de Toulouse, Toulouse, F-31000, France
| | - F Aubin
- EA 3181, SFR4234, Département de Dermatologie, Centre Hospitalier Universitaire, Université de Franche Comté, Besançon, F-25000, France
| | - C Paul
- Département de Dermatologie, UMR CNRS 5165, INSERM 1056, Université Paul Sabatier, Hôpitaux Universitaires de Toulouse, Toulouse, F-31000, France
| | - M Beylot Barry
- Département de Dermatologie, Centre Hospitalier Universitaire, Hôpital du Haut Lévêque, Université de Bordeaux EA 2406, Pessac, F-33600, France
| | - P Humbert
- Département de Dermatologie, INSERM U1098, SFR4234, Centre Hospitalier Universitaire, Université de Franche Comté, Besançon, F-25000, France
| | - A Dupuy
- Département de Dermatologie, INSERM CIC 1414, Centre Hospitalier Universitaire de Rennes, Hôpital Pontchaillou, Université de Rennes 1, Rennes, F-35000, France
| | - F Caux
- AP-HP, Département de Dermatologie, Centre de Référence MAGEC, Université Paris 13, Hôpitaux Universitaires Avicenne, Bobigny, F-93000, France
| | - N Dupin
- AP-HP, Département de Dermatologie, Université Paris Descartes Paris V, Hôpitaux Universitaires Cochin, Paris, F-75014, France
| | - P Modiano
- GHICL, Département de Dermatologie, Hôpital Saint-Vincent-de-Paul, Lille, F-59000, France
| | - P Lepesant
- GHICL, Département de Dermatologie, Hôpital Saint-Vincent-de-Paul, Lille, F-59000, France
| | - S Ingen-Housz-Oro
- AP-HP, Département de Dermatologie, UPEC, Hôpitaux Universitaires Henri Mondor, Créteil, F-94010, France.,EA 7379 EpiDermE, UPEC, Université Paris-Est Créteil, Créteil, F-94010, France
| | - E Mahé
- Département de Dermatologie, Hôpital Victor Dupouy, Argenteuil, F-95100, France
| | - H Bachelez
- Sorbonne Paris Cité, Service de Dermatologie, AP-HP, Hôpital Saint-Louis, Université Paris Diderot, Paris, F-75010, France
| | - O Chosidow
- AP-HP, Département de Dermatologie, UPEC, Hôpitaux Universitaires Henri Mondor, Créteil, F-94010, France.,INSERM, Centre d'Investigation Clinique 1430, Créteil, F-94010, France.,EA 7379 EpiDermE, UPEC, Université Paris-Est Créteil, Créteil, F-94010, France
| | - P Wolkenstein
- AP-HP, Département de Dermatologie, UPEC, Hôpitaux Universitaires Henri Mondor, Créteil, F-94010, France.,EA 7379 EpiDermE, UPEC, Université Paris-Est Créteil, Créteil, F-94010, France
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19
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Guichard A, Ma L, Tan Y, Yuan C, Wang H, Lihoreau T, Humbert P, Wang X. What if scalp flora was involved in sensitive scalp onset? Int J Cosmet Sci 2015; 38:429-30. [PMID: 26648476 DOI: 10.1111/ics.12298] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- A Guichard
- Department of Skin and Cosmetic Research, Shanghai Skin Disease Hospital, Shanghai, 200442, China
| | - L Ma
- Department of Skin and Cosmetic Research, Shanghai Skin Disease Hospital, Shanghai, 200442, China
| | - Y Tan
- Department of Skin and Cosmetic Research, Shanghai Skin Disease Hospital, Shanghai, 200442, China
| | - C Yuan
- Department of Skin and Cosmetic Research, Shanghai Skin Disease Hospital, Shanghai, 200442, China
| | - H Wang
- Guanghua Integrative Medicine Hospital, Changning District, Shanghai, 200442, China
| | - T Lihoreau
- Department of Dermatology, Research and Studies Center on the Integument (CERT), Clinical Investigation Center (CIC INSERM 1431), Besançon University Hospital, Besançon, France.,INSERM UMR1098, FED4234 IBCT, University of Franche-Comté, Besançon, France
| | - P Humbert
- Department of Dermatology, Research and Studies Center on the Integument (CERT), Clinical Investigation Center (CIC INSERM 1431), Besançon University Hospital, Besançon, France.,INSERM UMR1098, FED4234 IBCT, University of Franche-Comté, Besançon, France
| | - X Wang
- Department of Skin and Cosmetic Research, Shanghai Skin Disease Hospital, Shanghai, 200442, China.
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20
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Fournier A, Roche-Kubler B, Laresche C, Humbert P, Aubin F, Dupond AS. Dermato-neuro syndrome d’évolution favorable sous immunoglobulines intraveineuses. Ann Dermatol Venereol 2015. [DOI: 10.1016/j.annder.2015.10.436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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21
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Pelletier F, Girardin M, Humbert P, Puyraveau M, Aubin F, Parratte B. Long-term assessment of effectiveness and quality of life of OnabotulinumtoxinA injections in provoked vestibulodynia. J Eur Acad Dermatol Venereol 2015; 30:106-11. [PMID: 26491951 DOI: 10.1111/jdv.13437] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Accepted: 07/27/2015] [Indexed: 11/29/2022]
Abstract
BACKGROUND Provoked vestibulodynia is a relatively common condition that affects sexual activity. Multidisciplinary care is indicated and OnabotulinumtoxinA injections are safe and effective treatment in this indication. AIMS To assess the long-term efficacy of OnabotulinumtoxinA in provoked vestibulodynia. MATERIALS AND METHODS Twenty-one patients treated with OnabotulinumtoxinA injections (50U in each bulbospongiosus muscle) 24 months prior to the study were included. Data on pain [assessed using a visual analogue scale (VAS)], quality of life [measured by the Dermatology Life Quality Index (DLQI)] and quality of sex life [assessed using the Female Sexual Function Index (FSFI)] were collected before treatment, and 3 and 24 months after injection. RESULTS Nineteen patients participated in the study and 37% had no pain after 24 months. Significant improvements were noted in the VAS, DLQI and FSFI scores between baseline and 24 months post treatment (P < 0.0001). After 24 months, 18 patients (95%) were able to have sexual intercourse. This study was open and non-controlled. DISCUSSION AND CONCLUSION 100U OnabotulinumtoxinA injections constitute an effective treatment in provoked vestibulodynia with results maintained after 2 years. They significantly improve pain, and have a positive impact on patient quality of life and sex life. Beneficial effects continue in the long-term, allowing patients to resume sexual activity.
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Affiliation(s)
- F Pelletier
- Department of Dermatology, Besançon University Hospital, Besançon, France.,INSERM UMR1098, University of Franche-Comté, Besançon, France
| | - M Girardin
- Department of Dermatology, Besançon University Hospital, Besançon, France
| | - P Humbert
- Department of Dermatology, Besançon University Hospital, Besançon, France.,INSERM UMR1098, University of Franche-Comté, Besançon, France
| | - M Puyraveau
- Clinical Methodology Centre, Besançon University Hospital, Besançon, France
| | - F Aubin
- Department of Dermatology, Besançon University Hospital, Besançon, France.,University of Franche-Comté, Besançon, France
| | - B Parratte
- Department of Physical Medicine and Readaptation, Besançon University Hospital, Besançon, France.,Anatomy Laboratory, University of Franche-Comté, Besançon, France
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22
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Pearson HB, McGlinn E, Phesse TJ, Schlüter H, Srikumar A, Gödde NJ, Woelwer CB, Ryan A, Phillips WA, Ernst M, Kaur P, Humbert P. The polarity protein Scrib mediates epidermal development and exerts a tumor suppressive function during skin carcinogenesis. Mol Cancer 2015; 14:169. [PMID: 26376988 PMCID: PMC4574215 DOI: 10.1186/s12943-015-0440-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 08/31/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The establishment and maintenance of polarity is vital for embryonic development and loss of polarity is a frequent characteristic of epithelial cancers, however the underlying molecular mechanisms remain unclear. Here, we identify a novel role for the polarity protein Scrib as a mediator of epidermal permeability barrier acquisition, skeletal morphogenesis, and as a potent tumor suppressor in cutaneous carcinogenesis. METHODS To explore the role of Scrib during epidermal development, we compared the permeability of toluidine blue dye in wild-type, Scrib heterozygous and Scrib KO embryonic epidermis at E16.5, E17.5 and E18.5. Mouse embryos were stained with alcian blue and alizarin red for skeletal analysis. To establish whether Scrib plays a tumor suppressive role during skin tumorigenesis and/or progression, we evaluated an autochthonous mouse model of skin carcinogenesis in the context of Scrib loss. We utilised Cre-LoxP technology to conditionally deplete Scrib in adult epidermis, since Scrib KO embryos are neonatal lethal. RESULTS We establish that Scrib perturbs keratinocyte maturation during embryonic development, causing impaired epidermal barrier formation, and that Scrib is required for skeletal morphogenesis in mice. Analysis of conditional transgenic mice deficient for Scrib specifically within the epidermis revealed no skin pathologies, indicating that Scrib is dispensable for normal adult epidermal homeostasis. Nevertheless, bi-allelic loss of Scrib significantly enhanced tumor multiplicity and progression in an autochthonous model of epidermal carcinogenesis in vivo, demonstrating Scrib is an epidermal tumor suppressor. Mechanistically, we show that apoptosis is the critical effector of Scrib tumor suppressor activity during skin carcinogenesis and provide new insight into the function of polarity proteins during DNA damage repair. CONCLUSIONS For the first time, we provide genetic evidence of a unique link between skin carcinogenesis and loss of the epithelial polarity regulator Scrib, emphasizing that Scrib exerts a wide-spread tumor suppressive function in epithelia.
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Affiliation(s)
- Helen B Pearson
- Peter MacCallum Cancer Centre, St Andrew's Place, East Melbourne, VIC, 3002, Australia. .,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, VIC, 3010, Australia.
| | - Edwina McGlinn
- EMBL Australia, Australian Regenerative Medicine Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Toby J Phesse
- Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, 3052, Australia.,Present address: Olivia Newton-John Cancer Research Institute and School of Cancer Medicine at La Trobe University, Heidelberg, VIC, 3084, Australia
| | - Holger Schlüter
- Peter MacCallum Cancer Centre, St Andrew's Place, East Melbourne, VIC, 3002, Australia.,Present address: National Center for Tumor Diseases Heidelberg (NCT), German Cancer Research Centre (DKFZ), 69120, Heidelberg, Germany
| | - Anuratha Srikumar
- Peter MacCallum Cancer Centre, St Andrew's Place, East Melbourne, VIC, 3002, Australia
| | - Nathan J Gödde
- Peter MacCallum Cancer Centre, St Andrew's Place, East Melbourne, VIC, 3002, Australia
| | - Christina B Woelwer
- Peter MacCallum Cancer Centre, St Andrew's Place, East Melbourne, VIC, 3002, Australia
| | - Andrew Ryan
- TissuPath Laboratories, Mount Waverley, VIC, 3149, Australia
| | - Wayne A Phillips
- Peter MacCallum Cancer Centre, St Andrew's Place, East Melbourne, VIC, 3002, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, VIC, 3010, Australia.,Department of Surgery (St. Vincent's Hospital), The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Matthias Ernst
- Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, 3052, Australia.,Present address: Olivia Newton-John Cancer Research Institute and School of Cancer Medicine at La Trobe University, Heidelberg, VIC, 3084, Australia
| | - Pritinder Kaur
- Peter MacCallum Cancer Centre, St Andrew's Place, East Melbourne, VIC, 3002, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Patrick Humbert
- Peter MacCallum Cancer Centre, St Andrew's Place, East Melbourne, VIC, 3002, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, VIC, 3010, Australia.,Department of Pathology, The University of Melbourne, Parkville, VIC, 3010, Australia.,Department of Biochemistry and Molecular Biology, The University of Melbourne, Parkville, VIC, 3010, Australia
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23
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Deveza E, Puzenat E, Manzoni P, Humbert P, Aubin F. [Congenital hemangiomas: Report on ten patients]. Arch Pediatr 2015; 22:685-92. [PMID: 26047746 DOI: 10.1016/j.arcped.2015.04.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Revised: 03/17/2015] [Accepted: 04/11/2015] [Indexed: 11/25/2022]
Abstract
INTRODUCTION Congenital hemangiomas (CHs) are rare congenital vascular tumors seldom mentioned in the literature. MATERIALS AND METHODS We carried out a retrospective study of all the cases of CH diagnosed and treated at Besançon Hospital from 2008 to 2014. The clinical, radiological, and histological data of each case were collected. All the children were seen again in 2014. RESULTS Ten CHs (seven rapidly involuting CHs, RICH and three non-involuting CH, NICH), predominantly full-term eutrophic male infants, were enrolled. RICHs were located on the head (n=2), trunk (n=2), and lower limbs (n=3), and NICHs were found on the hands. Diagnosis was clinical for all ten infants. All CHs resembled "tumor" congenital lesions: single, oval-shaped, nonpulsatile, and well delimited, and their size did not increase after birth. Two RICHs were warm, one had phlebolites, and two had draining veins at the first visit. The mean age of the RICH involution onset was 1.7 months and the mean time to complete involution was 10.4 months. One CH was classified as a PICH (partially involuting CH) due to partial regression, two RICHs were still in the involution process at the age of 10 and 15 months, and one regressed very quickly within 7 days. No complications were observed in the NICH. Two RICHs presented benign complications (ulcerations and bleeding). Two RICHs regressed entirely, and five regressed with sequelae: lipoatrophy (n=3), cutaneous excess (n=2), dysplastic veins (n=3), a pigmented area (n=1), and an anemic halo (n=2). DISCUSSION The small number of patients in our cohort, in spite of the length of the study, confirms the rarity of CH. The sex-ratio in favor of male infants and the location of NICH on the hands have not been reported. The most discriminating element remained the follow-up over 1 year. The initial clinical aspect of the NICH and the progression of one RICH into a NICH suggested possible overlapping forms between RICH and NICH. Some CHs, including one PICH, presented clinical and radiological criteria similar to those of vascular malformations (warm lesion, dysplastic veins, and echo-Doppler results in favor of vascular malformation). RICH regressed with sequelae in most cases. CONCLUSION This study reveals a polymorphous clinical presentation of CH and provides a thorough description of their progression. It underlines the existence of overlapping phenomena between RICH and NICH, and between CH and vascular malformations, thus suggesting a possible link between proliferation and malformation phenomena at the origin of these lesions.
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Affiliation(s)
- E Deveza
- Service de dermatologie, CHU Besançon, 3, boulevard Fleming, 25030 Besançon cedex, France
| | - E Puzenat
- Service de dermatologie, CHU Besançon, 3, boulevard Fleming, 25030 Besançon cedex, France.
| | - P Manzoni
- Service de Radiologie A, CHU Besançon, 3, boulevard Fleming, 25030 Besançon cedex, France
| | - P Humbert
- Service de dermatologie, CHU Besançon, 3, boulevard Fleming, 25030 Besançon cedex, France; Inserm U1098, SFR FED 4234 IBCT, université de Franche-Comté, 25030 Besançon, France
| | - F Aubin
- Service de dermatologie, CHU Besançon, 3, boulevard Fleming, 25030 Besançon cedex, France; EA 3181, SFR FED 4234 IBCT, université de Franche-Comté, 25030 Besançon, France
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Wang Y, Rolin G, Tissot M, Muret P, Viennet C, Berthon J, Humbert P. Développement et validation d’une méthode simple et commune pour l’extraction de cellules épidermiques. Ann Dermatol Venereol 2015. [DOI: 10.1016/j.annder.2015.04.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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25
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Fournier A, Roche Kubler B, Laresche C, Humbert P, Aubin F, Dupond A. Dermatoneuro-syndrome d’évolution favorable sous immunoglobulines intraveineuses. Rev Med Interne 2015. [DOI: 10.1016/j.revmed.2015.03.068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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26
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Messikh R, Try C, Bennani B, Humbert P. Efficacité des diurétiques dans le traitement de la maladie de Morbihan. Rev Med Interne 2015. [DOI: 10.1016/j.revmed.2015.03.294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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27
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Deveza E, Locatelli F, Girardin M, Valmary-Degano S, Daguindau E, Aubin F, Humbert P, Pelletier F. [Vulvar oedema revealing systemic mastocytosis]. Ann Dermatol Venereol 2015; 142:685-9. [PMID: 26003033 DOI: 10.1016/j.annder.2015.04.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 02/25/2015] [Accepted: 04/09/2015] [Indexed: 11/17/2022]
Abstract
BACKGROUND Systemic mastocytosis is characterised by abnormal proliferation of mast cells in various organs. We report an original case of systemic mastocytosis revealed by vulvar oedema. PATIENTS AND METHODS A 24-year-old patient was examined in the dermatology department for vulvar oedema appearing during sexual intercourse. She presented vasomotor dysfunction of the lower limbs, urticaria on the trunk on exertion, diarrhoea and bone pains. Laboratory tests showed serum tryptase of 29.7μg and plasma histamine at twice the normal value. Myelogram results showed infiltration by dysmorphic mast cells. Screening for c-kit D816V mutation was positive. Duodenal biopsies revealed mast-cell clusters with aggregation involving over 15 mast cells. CD2 staining was inconclusive and CD25 staining could not be done. Trabecular osteopenia was found, and we thus made a diagnosis of indolent systemic mastocytosis (ISM variant Ia) as per the WHO 2008 criteria. Symptomatic treatment was initiated (antiH1, H2, antileukotrienes) and clinical and laboratory follow-up was instituted. DISCUSSION The cutaneous signs leading to diagnosis in this patient of systemic mastocytosis involving several organs were seemingly minimal signs associated with mastocyte degranulation. This is the third recorded case of mastocytosis revealed by vulvar oedema and the first case revealing systemic involvement. The two previously reported cases of vulvar oedema revealed cutaneous mastocytosis alone. Mastocytosis, whether systemic or cutaneous, must be included among the differential diagnoses considered in the presence of vulvar oedema.
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Affiliation(s)
- E Deveza
- Unité d'allergologie, service de dermatologie, centre de compétences des mastocytoses, CHRU de Besançon, 3, boulevard Fleming, 25030 Besançon cedex, France.
| | - F Locatelli
- Unité d'allergologie, service de dermatologie, centre de compétences des mastocytoses, CHRU de Besançon, 3, boulevard Fleming, 25030 Besançon cedex, France
| | - M Girardin
- Unité d'allergologie, service de dermatologie, centre de compétences des mastocytoses, CHRU de Besançon, 3, boulevard Fleming, 25030 Besançon cedex, France
| | - S Valmary-Degano
- Service d'anatomopathologie, CHRU de Besançon, 25030 Besançon cedex, France
| | - E Daguindau
- Service d'hématologie, CHRU de Besançon, 25030 Besançon cedex, France
| | - F Aubin
- Unité d'allergologie, service de dermatologie, centre de compétences des mastocytoses, CHRU de Besançon, 3, boulevard Fleming, 25030 Besançon cedex, France; EA3181, SFR FED 4234 IBCT, université de Franche-Comté, 25030 Besançon cedex, France
| | - P Humbert
- Unité d'allergologie, service de dermatologie, centre de compétences des mastocytoses, CHRU de Besançon, 3, boulevard Fleming, 25030 Besançon cedex, France; Inserm U1098, SFR FED 4234 IBCT, université de Franche-Comté, 25030 Besançon cedex, France
| | - F Pelletier
- Unité d'allergologie, service de dermatologie, centre de compétences des mastocytoses, CHRU de Besançon, 3, boulevard Fleming, 25030 Besançon cedex, France; Inserm U1098, SFR FED 4234 IBCT, université de Franche-Comté, 25030 Besançon cedex, France
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Salard D, Mercier S, Thauvin C, Küry S, Bézieau S, Altuzarra C, Humbert P, Aubin F, Puzenat E. Mutation dans le gène FAM111B : une nouvelle cause de poïkilodermie héréditaire. Ann Dermatol Venereol 2014. [DOI: 10.1016/j.annder.2014.09.347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Deveza E, Puzenat E, Manzoni P, Aubin F, Humbert P. Hémangiomes congénitaux : cohorte de 10 cas suivis au CHU de Besançon de 2008 à 2014. Ann Dermatol Venereol 2014. [DOI: 10.1016/j.annder.2014.09.252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Guichard A, Fanian F, Girardin P, Humbert P. Patch test allergologique et eczéma de contact en microscopie confocale. Ann Dermatol Venereol 2014; 141:805-7. [DOI: 10.1016/j.annder.2014.09.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 08/11/2014] [Accepted: 09/23/2014] [Indexed: 10/24/2022]
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Humbert P, Yuan C, Wang X, Guichard A, Lihoreau T, Lafforgue C. Demodex folliculorum dans la rosacée papulo-pustuleuse : comparaison de deux méthodes de caractérisation. Ann Dermatol Venereol 2014. [DOI: 10.1016/j.annder.2014.09.518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Yuan C, Wang XM, Guichard A, Lihoreau T, Mac-Mary S, Khyat L, Ardigò M, Humbert P. Comparison of reflectance confocal microscopy and standardized skin surface biopsy for three different lesions in a pityriasis folliculorum patient. Br J Dermatol 2014; 172:1440-2. [PMID: 25363861 DOI: 10.1111/bjd.13506] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- C Yuan
- Department of Skin & Cosmetic Research, Shanghai Skin Disease Hospital, Shanghai, China
| | - X-M Wang
- Department of Skin & Cosmetic Research, Shanghai Skin Disease Hospital, Shanghai, China
| | - A Guichard
- Research and Studies Center on the Integument (CERT); Clinical Investigation Center (CIC BT506), Department of Dermatology, Besançon University Hospital, University of Franche-Comté, 3, Boulevard Alexandre Fleming, Besancon, France
| | - T Lihoreau
- Research and Studies Center on the Integument (CERT); Clinical Investigation Center (CIC BT506), Department of Dermatology, Besançon University Hospital, University of Franche-Comté, 3, Boulevard Alexandre Fleming, Besancon, France
| | | | - L Khyat
- Research and Studies Center on the Integument (CERT); Clinical Investigation Center (CIC BT506), Department of Dermatology, Besançon University Hospital, University of Franche-Comté, 3, Boulevard Alexandre Fleming, Besancon, France
| | - M Ardigò
- San Gallicano Dermatological Institute-IRCCS, Rome, Italy
| | - P Humbert
- Research and Studies Center on the Integument (CERT); Clinical Investigation Center (CIC BT506), Department of Dermatology, Besançon University Hospital, University of Franche-Comté, 3, Boulevard Alexandre Fleming, Besancon, France
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Takizawa I, Lawrence M, Pearson H, Pedersen J, Pouliot N, Humbert P, Furic L, Risbridger G. Abstract 2106: Estrogen receptor alpha drives proliferation of prostate cancer through PI3K and MAPK signaling. Cancer Res 2014. [DOI: 10.1158/1538-7445.am2014-2106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Prostate cancer, a hormone-dependent disease of aging men, occurs as the relative levels of estrogen compared to testosterone are increasing. Indeed, high doses of estrogen, in combination with androgens, can initiate prostate cancer. This effect is attributed to the activity of the estrogen receptor α (ERα), but a paucity of suitable models means that the precise role of ERα in prostate cancer is still poorly understood.
In this study we observed increased ERα expression in three different models of prostate cancer, PTEN null mice, Hi-Myc mice, and high grade human tumor specimens. Within the PTEN null prostate, there was a consistent pattern of ERα expression: low in benign glands, moderate in tumors within the dorsal, lateral and ventral lobes, and high in tumors within the anterior prostate. This pattern significantly correlated with the levels of the proliferative marker Ki67. There was also a significant correlation between ERα and Ki67 within individual malignant glands in the anterior prostate. Furthermore, we demonstrated that ERα sustained the in vitro proliferation of cells derived from a PTEN null tumor in 2D and 3D assays. There was a significant decrease in proliferation in cells treated with TPSF, a non-competitive ERα antagonist, or with ERα-specific shRNA. Loss of ERα caused a significant decrease in the levels of MYC and other ERα target genes. It also reduced the activity of both the PI3K and MAPK pathways as measured by decreased levels of phosphorylated erk1/2, S6 kinase and other downstream factors. This effect was reversed in rescue experiments with expression constructs for both full length ERα, capable of genomic and non-genomic actions, and membrane-only ERα, only able to trigger rapid non-genomic signalling.
Collectively, these results demonstrate that ERα levels increase in prostate cancer, which promotes proliferation through classical genomic and rapid non-genomic signalling.
Citation Format: Itsuhiro Takizawa, Mitchell Lawrence, Helen Pearson, John Pedersen, Normand Pouliot, Australian Prostate Cancer BioResource, Patrick Humbert, Luc Furic, Gail Risbridger. Estrogen receptor alpha drives proliferation of prostate cancer through PI3K and MAPK signaling. [abstract]. In: Proceedings of the 105th Annual Meeting of the American Association for Cancer Research; 2014 Apr 5-9; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2014;74(19 Suppl):Abstract nr 2106. doi:10.1158/1538-7445.AM2014-2106
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Affiliation(s)
| | | | - Helen Pearson
- 2Peter MacCallum Cancer Centre, Melbourne, Australia
| | | | | | | | - Luc Furic
- 1Monash University, Melbourne, Australia
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Boczonadi V, Gillespie R, Keenan I, Ramsbottom SA, Donald-Wilson C, Al Nazer M, Humbert P, Schwarz RJ, Chaudhry B, Henderson DJ. Scrib:Rac1 interactions are required for the morphogenesis of the ventricular myocardium. Cardiovasc Res 2014; 104:103-15. [PMID: 25139745 PMCID: PMC4174891 DOI: 10.1093/cvr/cvu193] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Aims The organization and maturation of ventricular cardiomyocytes from the embryonic to the adult form is crucial for normal cardiac function. We have shown that a polarity protein, Scrib, may be involved in regulating the early stages of this process. Our goal was to establish whether Scrib plays a cell autonomous role in the ventricular myocardium, and whether this involves well-known polarity pathways. Methods and results Deletion of Scrib in cardiac precursors utilizing Scribflox mice together with the Nkx2.5-Cre driver resulted in disruption of the cytoarchitecture of the forming trabeculae and ventricular septal defects. Although the majority of mice lacking Scrib in the myocardium survived to adulthood, they developed marked cardiac fibrosis. Scrib did not physically interact with the planar cell polarity (PCP) protein, Vangl2, in early cardiomyocytes as it does in other tissues, suggesting that the anomalies did not result from disruption of PCP signalling. However, Scrib interacted with Rac1 physically in embryonic cardiomyocytes and genetically to result in ventricular abnormalities, suggesting that this interaction is crucial for the development of the early myocardium. Conclusions The Scrib–Rac1 interaction plays a crucial role in the organization of developing cardiomyocytes and formation of the ventricular myocardium. Thus, we have identified a novel signalling pathway in the early, functioning, heart muscle. These data also show that the foetus can recover from relatively severe abnormalities in prenatal ventricular development, although cardiac fibrosis can be a long-term consequence.
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Affiliation(s)
- Veronika Boczonadi
- Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne NE1 3BZ, UK
| | - Rachel Gillespie
- Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne NE1 3BZ, UK
| | - Iain Keenan
- Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne NE1 3BZ, UK
| | - Simon A Ramsbottom
- Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne NE1 3BZ, UK
| | | | - Mariana Al Nazer
- Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne NE1 3BZ, UK
| | - Patrick Humbert
- Cell Cycle and Cancer Genetics Laboratory, Peter MacCallum Cancer Centre, East Melbourne, Australia Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Melbourne, Australia Department of Biochemistry and Molecular Biology, University of Melbourne, Parkville, Melbourne, Australia Department of Pathology, University of Melbourne, Parkville, Melbourne, Australia
| | | | - Bill Chaudhry
- Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne NE1 3BZ, UK
| | - Deborah J Henderson
- Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne NE1 3BZ, UK
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Ellis S, Campanale N, Borg J, Reardon M, Adolph L, Williams S, Humbert P, Walkley C, Purton L, Russell S. Role of the polarity protein, scribble, in hematopoiesis and leukemia. Exp Hematol 2014. [DOI: 10.1016/j.exphem.2014.07.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Viennet C, Laurensou C, Goydadin AC, Faivre B, Muret P, Humbert P. Development of an in vitro fibrin clot model to evaluate fibrinolytic agents for wound care application. J Wound Care 2014; 23:66-7, 70, 72. [PMID: 24526082 DOI: 10.12968/jowc.2014.23.2.66] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE To describe an in vitro fibrin clot model that could reliably assess the fibrinolytic activity of enzymatic debriding agents for wound care application. METHOD A model of a fibrin clot was reconstructed in vitro by mixture of human fibrinogen and (alpha)-thrombin supplemented with factor XIII. These clots were then treated with enzymatic ointments. Fibrinolytic activity was investigated by measuring D-dimer levels, using an automated immunoturbidimetric Liatest D-dimer assay. RESULTS Collagenase and papain-urea ointments demonstrated fibrinolytic activity which was macroscopically visible. Their effect was identical on the in vitro reconstructed fibrin clot and ex vivo collected wound fibrin clot; collagenase and papain-urea both induced a complete degradation and dissolution of both fibrin clots after 24 hours of treatment. This was associated with an increase in D-dimer concentration. CONCLUSION This reconstructed fibrin clot in vitro model has the potential to predict the efficacy of fibrinolytic agents and therefore appears to be a suitable model for in vitro assays. DECLARATION OF INTEREST This study was supported by a grant from URGO Laboratory.
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Affiliation(s)
- C Viennet
- PhD, Research Engineer, Engineering and Cutaneous Biology Laboratory, UMR 1098, University of Franche-Comte, France
| | - C Laurensou
- Industrial Pharmacist, URGO Laboratory, France
| | - A C Goydadin
- Research Technician, Engineering and Cutaneous Biology Laboratory, UMR 1098, University of Franche-Comte, France
| | - B Faivre
- MD, Dermatologist, Department of Dermatology, Besançon University Hospital, France
| | - P Muret
- MD, PhD, Hospital Practitioner, Engineering and Cutaneous Biology Laboratory, UMR 1098, University of Franche-Comte, France, Department of Clinical Pharmacology, Besançon University Hospital, France
| | - P Humbert
- MD, PhD, Professor of Dermatology, Engineering and Cutaneous Biology Laboratory, UMR 1098, University of Franche-Comte, France, Department of Dermatology, Besançon University Hospital, France
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Puzenat E, Bellaud G, Saugier-Veber P, Crémillieux C, Mignot B, Humbert P, Aubin F. [The challenge for dermatologists of early APECED diagnosis]. Ann Dermatol Venereol 2014; 141:290-4. [PMID: 24703644 DOI: 10.1016/j.annder.2014.01.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Revised: 10/31/2013] [Accepted: 01/10/2014] [Indexed: 11/20/2022]
Abstract
BACKGROUND Polyglandular auto-immune syndrome type 1 (PAS-1) or auto-immune polyendocrinopathy-candidiasis-ectodermal dystrophy (APECED) is a rare autosomal recessive disorder linked to auto-immune regulator (AIRE) gene mutations. Herein, we report the case of a 3-year-old boy with APECED emphasizing the wide phenotypic variability and the extent of skin lesions. PATIENTS AND METHODS A 3-year-old boy with a history of auto-immune hepatitis was referred for a generalized pruriginous urticaria-like eruption present for one month. He was born to non-consanguineous parents. Cutaneous examination revealed twenty-nail dystrophy, which had been present since the age of 2 years. Both direct microscopy and culture of nail samples were negative for Candida albicans. Esophagogastroduodenoscopy revealed esophageal candidiasis. A diagnosis of APECED was suspected and subsequently confirmed by molecular analysis of the AIRE gene, which showed two mutations. No other auto-immune endocrinopathies were found. DISCUSSION Our case report illustrates the phenotypic variability of APECED with the absence of typical manifestations such as Addison's disease and hypoparathyroidism. APECED should thus be systematically suspected in young children presenting with cutaneous lesions associated with mucocutaneous candidiasis or auto-immune disease, even in the absence of known endocrinopathies. CONCLUSION Dermatologists should be aware of this association since early diagnosis of APECED is critical in preventing life-threatening endocrinological crises.
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Affiliation(s)
- E Puzenat
- Service de dermatologie, CHU Jean Minjoz, 3, boulevard Alexandre-Fleming, 25030 Besançon cedex, France.
| | - G Bellaud
- Service de dermatologie, CHU Jean Minjoz, 3, boulevard Alexandre-Fleming, 25030 Besançon cedex, France
| | - P Saugier-Veber
- Laboratoire de génétique moléculaire, CHU, 1, rue de Germont, 76000 Rouen, France
| | - C Crémillieux
- Service de pédiatrie, CHU de Besançon, 25030 Besançon cedex, France
| | - B Mignot
- Service de pédiatrie, CHU de Besançon, 25030 Besançon cedex, France
| | - P Humbert
- Service de dermatologie, CHU Jean Minjoz, 3, boulevard Alexandre-Fleming, 25030 Besançon cedex, France; Inserm U1098, SFR FED 4234 IBCT, université de Franche-Comté, 25030 Besançon cedex, France
| | - F Aubin
- Service de dermatologie, CHU Jean Minjoz, 3, boulevard Alexandre-Fleming, 25030 Besançon cedex, France; EA3081, SFR FED 4234 IBCT, université de Franche-Comté, 25030 Besançon cedex, France
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Humbert P, Faivre B, Véran Y, Debure C, Truchetet F, Bécherel PA, Plantin P, Kerihuel JC, Eming SA, Dissemond J, Weyandt G, Kaspar D, Smola H, Zöllner P. Protease-modulating polyacrylate-based hydrogel stimulates wound bed preparation in venous leg ulcers--a randomized controlled trial. J Eur Acad Dermatol Venereol 2014; 28:1742-50. [PMID: 24612304 PMCID: PMC4263240 DOI: 10.1111/jdv.12400] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Accepted: 01/14/2014] [Indexed: 01/10/2023]
Abstract
Background Stringent control of proteolytic activity represents a major therapeutic approach for wound-bed preparation. Objectives We tested whether a protease-modulating polyacrylate- (PA-) containing hydrogel resulted in a more efficient wound-bed preparation of venous leg ulcers when compared to an amorphous hydrogel without known protease-modulating properties. Methods Patients were randomized to the polyacrylate-based hydrogel (n = 34) or to an amorphous hydrogel (n = 41). Wound beds were evaluated by three blinded experts using photographs taken on days 0, 7 and 14. Results After 14 days of treatment there was an absolute decrease in fibrin and necrotic tissue of 37.6 ± 29.9 percentage points in the PA-based hydrogel group and by 16.8 ± 23.0 percentage points in the amorphous hydrogel group. The absolute increase in the proportion of ulcer area covered by granulation tissue was 36.0 ± 27.4 percentage points in the PA-based hydrogel group and 14.5 ± 22.0 percentage points in the control group. The differences between the groups were significant (decrease in fibrin and necrotic tissue P = 0.004 and increase in granulation tissue P = 0.0005, respectively). Conclusion In particular, long-standing wounds profited from the treatment with the PA-based hydrogel. These data suggest that PA-based hydrogel dressings can stimulate normalization of the wound environment, particularly in hard-to-heal ulcers.
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Affiliation(s)
- P Humbert
- Research and Studies Center on the Integument (CERT), Clinical Investigation Center (CIC BT506), Department of Dermatology, University Hospital, Besançon, France; INSERM UMR, University of Franche-Comté, Besançon, France
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Lboutounne Y, Silva J, Pazart L, Bérard M, Muret P, Humbert P. Microclimate next to the skin: influence on percutaneous absorption of caffeine (ex-vivostudy). Skin Res Technol 2013; 20:293-8. [DOI: 10.1111/srt.12118] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/19/2013] [Indexed: 11/30/2022]
Affiliation(s)
- Y. Lboutounne
- Univ Hospital of Besançon; Clinical Investigation Centre; Besançon France
- Inserm UMR 1098; Besançon France
| | - J. Silva
- Univ Hospital of Besançon; Clinical Investigation Centre; Besançon France
- Inserm UMR 1098; Besançon France
| | - L. Pazart
- Univ Hospital of Besançon; Clinical Investigation Centre; Besançon France
- Inserm UMR 1098; Besançon France
| | - M. Bérard
- Department of Clinical Pharmacology and Toxicology; Univ Hospital of Besançon; Besançon France
| | - P. Muret
- Inserm UMR 1098; Besançon France
- Univ Franche-Comte; Besançon France
- Department of Clinical Pharmacology and Toxicology; Univ Hospital of Besançon; Besançon France
| | - P. Humbert
- Inserm UMR 1098; Besançon France
- Univ Franche-Comte; Besançon France
- Department of Dermatology; Univ Hospital of Besançon; Besançon France
- Research and Studies Centre on the Integument (CERT); Besançon France
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Laresche C, Fournier E, Dupond AS, Woronoff AS, Drobacheff-Thiébaut MC, Pelletier F, Humbert P, Aubin F. Étude épidémiologique rétrospective descriptive de la maladie de Kaposi dans le Doubs sur la période 1977 à 2009. Ann Dermatol Venereol 2013. [DOI: 10.1016/j.annder.2013.09.257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Robin S, Courderot-Masuyer C, Tauzin H, Harbon S, Mary SM, Trompezinski S, Chavagnac-Bonneville M, Cadars B, Jourdan E, Humbert P. Développement et utilisation d’un modèle d’hématome induit pour évaluer l’effet d’une association contenant un extrait d’arnica et de l’apigénine. Ann Dermatol Venereol 2013. [DOI: 10.1016/j.annder.2013.09.618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Moreau J, Puzenat E, Rohrlich PS, Beaussant-Cohen S, Aubin F, Humbert P. Mutation DOCK 8 : une nouvelle cause du syndrome hyper-IgE. Ann Dermatol Venereol 2013. [DOI: 10.1016/j.annder.2013.09.425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Guichard A, Agozzino M, Humbert P, Fanian F, Elkhyat A, Ardigò M. Skin rejecting tattoo ink followed, in vivo,
by reflectance confocal microscopy. J Eur Acad Dermatol Venereol 2013; 28:391-3. [DOI: 10.1111/jdv.12200] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- A. Guichard
- Department of Dermatology; Research and Studies Center on the Integument (CERT); Clinical Investigation Center (CIC BT506); Besançon University Hospital; University of Franche-Comté; Besançon France
| | - M. Agozzino
- Department of Dermatology; Research and Studies Center on the Integument (CERT); Clinical Investigation Center (CIC BT506); Besançon University Hospital; University of Franche-Comté; Besançon France
| | - P. Humbert
- Department of Dermatology; Research and Studies Center on the Integument (CERT); Clinical Investigation Center (CIC BT506); Besançon University Hospital; University of Franche-Comté; Besançon France
| | - F. Fanian
- Department of Dermatology; Research and Studies Center on the Integument (CERT); Clinical Investigation Center (CIC BT506); Besançon University Hospital; University of Franche-Comté; Besançon France
| | - A. Elkhyat
- Department of Dermatology; Research and Studies Center on the Integument (CERT); Clinical Investigation Center (CIC BT506); Besançon University Hospital; University of Franche-Comté; Besançon France
| | - M. Ardigò
- Department of Dermatology; Research and Studies Center on the Integument (CERT); Clinical Investigation Center (CIC BT506); Besançon University Hospital; University of Franche-Comté; Besançon France
- San Gallicano Dermatological Institute - IRCCS; Rome Italy
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Dreno B, Bensadoun RJ, Humbert P, Krutmann J, Luger T, Triller R, Rougier A, Seité S. Algorithm for dermocosmetic use in the management of cutaneous side-effects associated with targeted therapy in oncology. J Eur Acad Dermatol Venereol 2013; 27:1071-80. [PMID: 23368717 PMCID: PMC3883088 DOI: 10.1111/jdv.12082] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Accepted: 11/27/2012] [Indexed: 12/21/2022]
Abstract
Currently, numerous patients who receive targeted chemotherapy for cancer suffer from disabling skin reactions due to cutaneous toxicity, which is a significant problem for an increasing number of patients and their treating physicians. In addition, using inappropriate personal hygiene products often worsens these otherwise manageable side-effects. Cosmetic products for personal hygiene and lesion camouflage are part of a patients’ well-being and an increasing number of physicians feel that they do not have adequate information to provide effective advice on concomitant cosmetic therapy. Although ample information is available in the literature on pharmaceutical treatment for cutaneous side-effects of chemotherapy, little is available for the concomitant use of dermatological skin-care products with medical treatments. The objective of this consensus study is to provide an algorithm for the appropriate use of dermatological cosmetics in the management of cutaneous toxicities associated with targeted chemotherapy such as epidermal growth factor receptor inhibitors and other monoclonal antibodies. These guidelines were developed by a French and German expert group of dermatologists and an oncologist for oncologists and primary care physicians who manage oncology patients. The information in this report is based on published data and the expert group’s opinion. Due to the current lack of clinical evidence, only a review of published recommendations including suggestions for concomitant cosmetic use was conducted.
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Affiliation(s)
- B Dreno
- Department of Cancero-Dermatology, Hôtel Dieu, CHU Nantes, France
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Abstract
Gene expression profiles can show significant changes when genetically diseased cells are compared with non-diseased cells. Biological networks are often used to identify active subnetworks (ASNs) of the diseases from the expression profiles to understand the reason behind the observed changes. Current methodologies for discovering ASNs mostly use undirected PPI networks and node centric approaches. This can limit their ability to find the meaningful ASNs when using integrated networks having comprehensive information than the traditional protein-protein interaction networks. Using appropriate scoring functions to assess both genes and their interactions may allow the discovery of better ASNs. In this paper, we present CASNet, which aims to identify better ASNs using (i) integrated interaction networks (mixed graphs), (ii) directions of regulations of genes, and (iii) combined node and edge scores. We simplify and extend previous methodologies to incorporate edge evaluations and lessen their sensitivity to significance thresholds. We formulate our objective functions using mixed integer programming (MIP) and show that optimal solutions may be obtained. We compare the ASNs obtained by CASNet and similar other approaches to show that CASNet can often discover more meaningful and stable regulatory ASNs. Our analysis of a breast cancer dataset finds that the positive feedback loops across 7 genes, AR, ESR1, MYC, E2F2, PGR, BCL2 and CCND1 are conserved across the basal/triple negative subtypes in multiple datasets that could potentially explain the aggressive nature of this cancer subtype. Furthermore, comparison of the basal subtype of breast cancer and the mesenchymal subtype of glioblastoma ASNs shows that an ASN in the vicinity of IL6 is conserved across the two subtypes. This result suggests that subtypes of different cancers can show molecular similarities indicating that the therapeutic approaches in different types of cancers may be shared.
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Affiliation(s)
- Raj K Gaire
- NICTA, Victoria Laboratory and Department of Computing and Information Systems, University of Melbourne, Parkville, Vic 3010, Australia.
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Viennet C, Gheit T, Muret P, Aubin F, Cabou J, Marchal A, Tommasino M, Humbert P. Assessment of the efficacy of a new formulation for plantar wart mummification: new experimental design and human papillomavirus identification. Clin Exp Dermatol 2012; 38:85-8. [DOI: 10.1111/ced.12025] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/07/2012] [Indexed: 12/01/2022]
Affiliation(s)
- C. Viennet
- Engineering and Cutaneous Biology Laboratory, INSERM UMR1098, SFR FED 4234; University of Franche-Comte; Besançon; France
| | - T. Gheit
- International Agency for Research on Cancer; Lyon; France
| | | | - F. Aubin
- Department of Dermatology; University Hospital; Besançon; France
| | - J. Cabou
- Auriga International; Braine-L'Alleud; Belgium
| | - A. Marchal
- Auriga International; Braine-L'Alleud; Belgium
| | - M. Tommasino
- International Agency for Research on Cancer; Lyon; France
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Puzenat E, Bellaud G, Saugier-Veber P, Cremillieux C, Mignot B, Humbert P, Aubin F. Diagnostic précoce du syndrome APECED : un challenge pour le dermatologue. Ann Dermatol Venereol 2012. [DOI: 10.1016/j.annder.2012.10.298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Bellaud G, Amsallem D, David A, Schwartz C, Aubin F, Humbert P, Puzenat E. Syndrome PHACE : l’expérience bisontine à propos de six patients. Ann Dermatol Venereol 2012. [DOI: 10.1016/j.annder.2012.10.182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Girardin M, Puzenat E, Algros MP, Hoen B, Janin S, Humbert P, Aubin F. L’insuffisance aortique, une complication rare du syndrome de Sweet. Ann Dermatol Venereol 2012. [DOI: 10.1016/j.annder.2012.10.332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Guichard A, Thanacody B, Girardin P, Vigan M, Humbert P. Cosmétovigilance : analyse rétrospective de l’expérience franc-comtoise et comparaison avec le fichier national. Ann Dermatol Venereol 2012. [DOI: 10.1016/j.annder.2012.10.161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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