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Hsu HC, Huang PW, Cho YT, Chu CY. Cotrimoxazole as a Preventative Intervention for Pneumocystis Pneumonia in Pemphigus Patients Treated with Rituximab: A Retrospective Study. Dermatol Ther (Heidelb) 2023:10.1007/s13555-023-00953-9. [PMID: 37322166 DOI: 10.1007/s13555-023-00953-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 05/30/2023] [Indexed: 06/17/2023] Open
Abstract
INTRODUCTION Pneumocystis jirovecii pneumonia (PJP) is a severe, life-threatening complication in patients treated with rituximab. However, there is no consensus on the primary prophylaxis for it in rituximab-treated pemphigus patients. Therefore, we sought to investigate the prophylactic efficacy and safety profile of cotrimoxazole for reducing the risk of developing PJP in pemphigus patients receiving rituximab. METHODS This single-center retrospective study investigated 148 pemphigus patients undergoing a first cycle of rituximab between 2008 and 2021 at a tertiary referral center in northern Taiwan. Patients were divided into the prophylaxis group (N = 113) and the control group (N = 35) according to whether or not cotrimoxazole was administered. The primary outcome was the 1-year incidence of PJP in the two groups, while the secondary outcome was the incidence of cotrimoxazole-related adverse events. RESULTS Of the 148 patients enrolled in this study, three patients, all in the control group, developed PJP during the 1-year follow-up. The incidence of PJP (8.6%) in the control group was significantly higher than that in the prophylaxis group (0%) (p = 0.012). The incidence of cotrimoxazole-related adverse events was 2.7%, and none of the cases were associated with life-threatening conditions. In addition, the cumulative prednisolone dose was associated with a trend of a higher risk of PJP (p = 0.0483). CONCLUSIONS Prophylactic cotrimoxazole significantly reduces the risk of PJP in a certain high-risk population and has a tolerable safety profile.
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Affiliation(s)
- Hao-Chen Hsu
- Department of Dermatology, National Taiwan University Hospital and National Taiwan University College of Medicine, No. 7, Chung-Shan South Road, Taipei, Taiwan
| | - Po-Wei Huang
- Department of Dermatology, National Taiwan University Hospital and National Taiwan University College of Medicine, No. 7, Chung-Shan South Road, Taipei, Taiwan
- Department of Surgery and Section of Dermatology, National Taiwan University Cancer Center, Taipei, Taiwan
| | - Yung-Tsu Cho
- Department of Dermatology, National Taiwan University Hospital and National Taiwan University College of Medicine, No. 7, Chung-Shan South Road, Taipei, Taiwan
| | - Chia-Yu Chu
- Department of Dermatology, National Taiwan University Hospital and National Taiwan University College of Medicine, No. 7, Chung-Shan South Road, Taipei, Taiwan.
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Antiga E, Bech R, Maglie R, Genovese G, Borradori L, Bockle B, Caproni M, Caux F, Chandran NS, Corrà A, D’Amore F, Daneshpazhooh M, De D, Didona D, Dmochowski M, Drenovska K, Ehrchen J, Feliciani C, Goebeler M, Groves R, Günther C, Handa S, Hofmann SC, Horvath B, Ioannidis D, Jedlickova H, Kowalewski C, Kridin K, Joly P, Lim YL, Marinovic B, Maverakis E, Meijer J, Patsatsi A, Pincelli C, Prost C, Setterfield J, Sprecher E, Skiljevic D, Tasanen K, Uzun S, Van Beek N, Vassileva S, Vorobyev A, Vujic I, Wang G, Wang M, Wozniak K, Yayli S, Zambruno G, Hashimoto T, Schmidt E, Mascarò JM, Marzano AV. S2k guidelines on the management of paraneoplastic pemphigus/paraneoplastic autoimmune multiorgan syndrome initiated by the European Academy of Dermatology and Venereology (EADV). J Eur Acad Dermatol Venereol 2023; 37:1118-1134. [PMID: 36965110 PMCID: PMC10806824 DOI: 10.1111/jdv.18931] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 01/16/2023] [Indexed: 03/27/2023]
Abstract
BACKGROUND Paraneoplastic pemphigus (PNP), also called paraneoplastic autoimmune multiorgan syndrome (PAMS), is a rare autoimmune disease with mucocutaneous and multi-organ involvement. PNP/PAMS is typically associated with lymphoproliferative or haematological malignancies, and less frequently with solid malignancies. The mortality rate of PNP/PAMS is elevated owing to the increased risk of severe infections and disease-associated complications, such as bronchiolitis obliterans. OBJECTIVES These guidelines summarize evidence-based and expert-based recommendations (S2k level) for the clinical characterization, diagnosis and management of PNP/PAMS. They have been initiated by the Task Force Autoimmune Blistering Diseases of the European Academy of Dermatology and Venereology with the contribution of physicians from all relevant disciplines. The degree of consent among all task force members was included. RESULTS Chronic severe mucositis and polymorphic skin lesions are clue clinical characteristics of PNP/PAMS. A complete assessment of the patient with suspected PNP/PAMS, requiring histopathological study and immunopathological investigations, including direct and indirect immunofluorescence, ELISA and, where available, immunoblotting/immunoprecipitation, is recommended to achieve a diagnosis of PNP/PAMS. Detection of anti-envoplakin antibodies and/or circulating antibodies binding to the rat bladder epithelium at indirect immunofluorescence is the most specific tool for the diagnosis of PNP/PAMS in a patient with compatible clinical and anamnestic features. Treatment of PNP/PAMS is highly challenging. Systemic steroids up to 1.5 mg/kg/day are recommended as first-line option. Rituximab is also recommended in patients with PNP/PAMS secondary to lymphoproliferative conditions but might also be considered in cases of PNP/PAMS associated with solid tumours. A multidisciplinary approach involving pneumologists, ophthalmologists and onco-haematologists is recommended for optimal management of the patients. CONCLUSIONS These are the first European guidelines for the diagnosis and management of PNP/PAMS. Diagnostic criteria and therapeutic recommendations will require further validation by prospective studies.
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Affiliation(s)
- Emiliano Antiga
- Department of Health Sciences, Section of Dermatology, University of Florence, Florence, Italy
| | - Rikke Bech
- Department of Dermatology and Venerology, Aarhus University Hospital, Aarhus, Denmark
| | - Roberto Maglie
- Department of Health Sciences, Section of Dermatology, University of Florence, Florence, Italy
| | - Giovanni Genovese
- Dermatology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Luca Borradori
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Barbara Bockle
- Department of Dermatology, Venereology and Allergology, Innsbruck Medical University, Innsbruck, Austria
| | - Marzia Caproni
- Department of Health Sciences, Section of Dermatology, University of Florence, Florence, Italy
- Rare Diseases Unit, Azienda USL Toscana Centro, European Reference Network Skin Member, Florence, Italy
| | - Frédéric Caux
- Department of Dermatology, Groupe Hospitalier Paris-Seine-Saint-Denis, AP-HP, Bobigny, France
| | - Nisha Suyien Chandran
- Division of Dermatology, Department of Medicine, National University Hospital, Singapore, Singapore
- Department of Medicine, NUS Yong Loo Lin School of Medicine, Singapore, Singapore
| | - Alberto Corrà
- Department of Health Sciences, Section of Dermatology, University of Florence, Florence, Italy
| | - Francesco D’Amore
- Department of Haematology, University Hospital of Aarhus, Aarhus, Denmark
| | - Maryam Daneshpazhooh
- Autoimmune Bullous diseases Research Center, Department of Dermatology, Razi Hospital, University of Medical Sciences, Tehran, Iran
| | - Dipankar De
- Department of Dermatology, PGIMER, Chandigarh, India
| | - Dario Didona
- Department of Dermatology and Allergology, Philipps University, Marburg, Germany
| | - Marian Dmochowski
- Autoimmune Blistering Dermatoses Section, Department of Dermatology, Poznan University of Medical Sciences, Poznań, Poland
| | - Kossara Drenovska
- Department of Dermatology and Venereology, Medical Faculty, Medical University, Sofia, Bulgaria
| | - Jan Ehrchen
- Department of Dermatology, University of Münster, Münster, Germany
| | - Claudio Feliciani
- Section of Dermatology, Department of Clinical and Experimental Medicine, University of Parma, Parma, Italy
| | - Matthias Goebeler
- Department of Dermatology, Venereology and Allergology, University Hospital Würzburg, Würzburg, Germany
| | - Richard Groves
- Clinical Immunodermatology, St. John’s Institute of Dermatology Guy’s Hospital, Great Maze Pond, London, United Kingdom
| | - Claudia Günther
- Department of Dermatology, University Hospital Carl Gustav Carus, Technical University Dresden, Dresden, Germany
| | - Sanjeev Handa
- Department of Dermatology, Venereology & Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Silke C. Hofmann
- Department of Dermatology, Allergy and Dermatosurgery, Helios University Hospital, University Witten/Herdecke, Wuppertal, Germany
| | - Barbara Horvath
- Department of Dermatology, Expertise Center for Blistering disease, University Medical Center Groningen, University of Groningen, The Netherlands
| | - Dimitrios Ioannidis
- 1 Department of Dermatology-Venereology, Aristotle University School of Medicine, Thessaloniki, Greece
| | - Hana Jedlickova
- Department of Dermatovenereology, Masaryk University, St. Anna Hospital, Brno, Czech Republic
| | - Cezary Kowalewski
- Department Dermatology and Immunodermatology, Medical University of Warsaw, Poland
| | - Khalaf Kridin
- Unit of Dermatology and Skin Research Laboratory, Baruch Padeh Medical Center, Poriya, Israel
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Pascal Joly
- Department of Dermatology, Rouen University Hospital and INSERM U1234, Centre de référence des maladies bulleuses autoimmunes, Normandie University, Rouen, France
| | - Yen Loo Lim
- National Skin Centre, Singapore
- Yong Loo Lin School of Medicine, Lee Kong Chian School of Medicine, Duke-NUS, Singapore
| | - Branka Marinovic
- University Hospital Center Zagreb, School of Medicine University of Zagreb, Zagreb, Croatia
| | - Emanual Maverakis
- Department of Dermatology, University of California Davis, Sacramento, California, USA
| | - Joost Meijer
- Department of Dermatology, Expertise Center for Blistering disease, University Medical Center Groningen, University of Groningen, The Netherlands
| | - Aikaterini Patsatsi
- Autoimmune Bullous Diseases Unit, 2nd Dermatology Department, Aristotle University School of Medicine, Thessaloniki, Greece
| | - Carlo Pincelli
- DermoLab, Department of Surgical, Medical, Dental and Morphological Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Catherine Prost
- Department of Dermatology and Referral Center for Autoimmune Bullous Diseases (MALIBUL), Avicenne University Hospital, Hôpitaux Universitaires de Paris Seine-Saint-Denis (HUPSSD), Assistance Publique – Hôpitaux de Paris (AP-HP), Université Sorbonne Paris Nord (USPN), Bobigny, France
| | - Jane Setterfield
- Centre for Host-Microbiome Interactions, Faculty of Dentistry, Oral and Craniofacial Sciences, King’s College London, London, United Kingdom
| | - Eli Sprecher
- Division of Dermatology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Israel
| | - Dusan Skiljevic
- Department of Dermatovenereology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
- Clinic of Dermatovenereology, University Clinical Center of Serbia, Belgrade, Serbia
| | - Kaisa Tasanen
- PEDEGO Research Unit, Department of Dermatology, Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland
| | - Soner Uzun
- Department of Dermatology and Venereology, Akdeniz University Faculty of Medicine, Antalya, Turkey
| | - Nina Van Beek
- Department of Dermatology, University of Lübeck, Lübeck, Germany
| | - Snejina Vassileva
- Department of Dermatology and Venereology, Medical Faculty, Medical University, Sofia, Bulgaria
| | - Artem Vorobyev
- Department of Dermatology, University of Lübeck, Lübeck, Germany
| | - Igor Vujic
- Department of Dermatology, Klinik Landstraße, Vienna, Austria
- Faculty of Medicine and Dentistry, Danube Private University, Krems, Austria
| | - Gang Wang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi’an, China
| | - Mingyue Wang
- Department of Dermatology, Peking University First Hospital, Beijing, China
- National Clinical Research Center for Skin and Immune Diseases, Beijing, China
| | - Katarzyna Wozniak
- Department of Dermatology, Immunodermatology and Venereology, Medical University of Warsaw, Warsaw, Poland
| | - Savas Yayli
- Department of Dermatology, Koç University School of Medicine, Istanbul, Turkey
| | - Giovanna Zambruno
- Genodermatosis Unit, Genetics and Rare Diseases Research Division, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy
| | - Takashi Hashimoto
- Department of Dermatology, Osaka Metroplitan University Graduate School of Medicine, Osaka, Japan
| | - Enno Schmidt
- Department of Dermatology, University of Lübeck, Lübeck, Germany
- Lübeck Institute of Experimental Dermatology (LIED), University of Lübeck, Lübeck, Germany
| | - José Manuel Mascarò
- Department of Dermatology, Hospital Clínic of Barcelona, Universitat de Barcelona, Barcelona, Spain
| | - Angelo Valerio Marzano
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy
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Foulad DP, Cirillo N, Grando SA. The Role of Non-Neuronal Acetylcholine in the Autoimmune Blistering Disease Pemphigus Vulgaris. BIOLOGY 2023; 12:biology12030354. [PMID: 36979046 PMCID: PMC10045443 DOI: 10.3390/biology12030354] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 01/25/2023] [Accepted: 02/22/2023] [Indexed: 02/25/2023]
Abstract
The importance of acetylcholine (ACh) in keratinocyte adhesion and acantholysis has been investigated over the last three decades, particularly in the pathophysiology of autoimmune blistering dermatoses. Pemphigus vulgaris (PV) is an autoimmune blistering skin disease where autoantibody-mediated suprabasilar intraepidermal splitting causes flaccid blisters and non-healing erosions of the oral mucosa and sometimes also of the skin. Historically, acantholysis in PV was thought to be driven by anti-desmoglein (Dsg) antibodies. Herein, we describe the role of autoantibodies against keratinocyte muscarinic and nicotinic acetylcholine receptors, as well as the annexin-like molecule pemphaxin that also binds ACh, in the immunopathogenesis of PV. The identification of targets in this disease is important, as they may lead to novel diagnostic and therapeutic options in the future for this potentially deadly disease.
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Affiliation(s)
- Delila Pouldar Foulad
- Division of Dermatology, University of California, Los Angeles, CA 90095, USA
- Correspondence: ; Tel.: +1-310-825-6911; Fax: +1-310-794-7005
| | - Nicola Cirillo
- Melbourne Dental School, University of Melbourne, Carlton, VI 3053, Australia
| | - Sergei A. Grando
- Department of Dermatology, University of California, Irvine, CA 92697, USA
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De D, Bishnoi A, Shilpa, Kamboj P, Arora AK, Pal A, Mahajan R, Handa S. Effectiveness of topical pilocarpine in refractory oral lesions of pemphigus vulgaris: Results from an open-label, prospective, pilot study. Dermatol Ther 2022; 35:e15449. [PMID: 35289044 DOI: 10.1111/dth.15449] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 12/19/2021] [Accepted: 03/13/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND The literature suggests a beneficial role of cholinomimetic agents in the treatment of pemphigus. In the present open-label, prospective pilot study, we assessed the effectiveness of topical pilocarpine 2% eye-drops in the treatment of recalcitrant oral lesions of pemphigus. METHODS Twenty patients with recalcitrant oral lesions of pemphigus were recruited and instructed to apply pilocarpine 2% eye-drops twice daily on the resistant oral lesions for 180 days. The systemic immunosuppression at the time of inclusion in the present study was continued at the same dose throughout the study duration. The photographs of the lesions were obtained at baseline and an interval of 30 days. The area representing the erosion was measured on clinical photographs using the imageJ software (National Institute of Health). Visual analogue scale and oral health impact profile-14 questionnaire were used to assess the degree of subjective improvement. Anti-desmoglein 1 and 3, and anti-acetylcholine M3 receptor antibodies were measured both in serum and saliva; at baseline and at the completion of the study. RESULTS Twenty patients were recruited in this pilot study. Mean total duration of illness was 3.4±1.3 years. The mean area of the erosions decreased significantly from 142.01±130.05 mm2 to 44.38±67.78 mm2 at study completion at 180 days (p 0.002, paired t-test). Repeated measures ANOVA demonstrated a significant trend in the reduction of the mean area of the erosions from baseline to day 180 (p 0.002). Mean VAS decreased significantly from 7.2±1.0 at baseline to 5.1±1.9 at day 180 (paired t-test, p 0.001). Mean OHIP-14 decreased significantly from 10.1±2.7 at baseline to 8.4±2.9 at day 180. No significant difference was observed between pre- and post-treatment levels of anti-desmoglein 1, anti-desmoglein 3, and anti-acetylcholine M3 receptor antibodies, in both serum and saliva. LIMITATIONS The depth component in the erosions could not be measured. An orabase formulation could be used in future studies to facilitate retention of the medication at the site of application. CONCLUSION Topical pilocarpine holds potential for the treatment of recalcitrant oral lesions of pemphigus vulgaris. It probably brings about re-epithelialization without imparting any immunomodulatory activity. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Dipankar De
- Department of Dermatology, Venereology and Leprology
| | | | - Shilpa
- Department of Dermatology, Venereology and Leprology
| | - Parul Kamboj
- Department of Dermatology, Venereology and Leprology
| | | | - Arnab Pal
- Department of Biochemistry, Postgraduate Institute of Medical Education and Research; Chandigarh, 160012, India
| | - Rahul Mahajan
- Department of Dermatology, Venereology and Leprology
| | - Sanjeev Handa
- Department of Dermatology, Venereology and Leprology
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Chernyavsky A, Khylynskyi MM, Patel KG, Grando SA. Chronic exposure to the anti-m3 muscarinic acetylcholine receptor autoantibody in pemphigus vulgaris contributes to disease pathophysiology. J Biol Chem 2022; 298:101687. [PMID: 35143842 PMCID: PMC8897697 DOI: 10.1016/j.jbc.2022.101687] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 02/01/2022] [Accepted: 02/03/2022] [Indexed: 12/31/2022] Open
Abstract
Pemphigus vulgaris (PV) is a potentially lethal autoimmune mucocutaneous blistering disease characterized by binding of IgG autoantibodies (AuAbs) to keratinocytes (KCs). In addition to AuAbs against adhesion molecules desmogleins 1 and 3, PV patients also produce an AuAb against the M3 muscarinic acetylcholine (ACh) receptor (M3AR) that plays an important role in regulation of vital functions of KCs upon binding endogenous ACh. This anti-M3AR AuAb is pathogenic because its adsorption eliminates the acantholytic activity of PV IgG; however, the molecular mechanism of its action is unclear. In the present study, we sought to elucidate the mode of immunopharmacologic action of the anti-M3AR AuAb in PV. Short-term exposures of cultured KCs to PV IgG or the muscarinic agonist muscarine both induced changes in the expression of keratins 5 and 10, consistent with the inhibition of proliferation and upregulated differentiation and in keeping with the biological function of M3AR. In contrast, long-term incubations induced a keratin expression pattern consistent with upregulated proliferation and decreased differentiation, in keeping with the hyperproliferative state of KCs in PV. This change could result from desensitization of the M3AR, representing the net antagonist-like effect of the AuAb. Therefore, chronic exposure of KCs to the anti-M3AR AuAb interrupts the physiological regulation of KCs by endogenous ACh, contributing to the onset of acantholysis. Since cholinergic agents have already demonstrated antiacantholytic activity in a mouse model of PV and in PV patients, our results have translational significance and can guide future development of therapies for PV patients employing cholinergic drugs.
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Affiliation(s)
- Alex Chernyavsky
- Department of Dermatology, University of California Irvine, Irvine, California, USA
| | | | - Krupa G Patel
- Department of Neurology, Oakland University William Beaumont School of Medicine, Rochester, Michigan, USA
| | - Sergei A Grando
- Department of Dermatology, University of California Irvine, Irvine, California, USA; Department of Biological Chemistry, University of California Irvine, Irvine, California, USA; Institute for Immunology, University of California Irvine, Irvine, California, USA.
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Toosi R, Teymourzadeh A, Mahmoudi H, Balighi K, Daneshpazhooh M. Correlation of anti-γ/ε nicotinic acetylcholine receptor antibody levels with anti-desmoglein 1,3 antibody levels and disease severity in pemphigus vulgaris. Clin Exp Dermatol 2021; 46:1230-1235. [PMID: 33713456 DOI: 10.1111/ced.14645] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 01/29/2021] [Accepted: 03/08/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND A role for nondesmoglein antigens in the pathogenesis of pemphigus vulgaris (PV) has been suggested in several studies. Acetylcholine receptors (AchR), are one of the most important groups of these antigens. However, the exact role of both antimuscarinic (m) and nicotinic (n) AchR antibodies (Abs) is still controversial. AIM To evaluate anti-desmoglein (Dsg)1, Dsg 3 and anti-γ/ε nAchR Abs values in patients with PV before and 3 months after rituximab (RTX) treatment, and to assess their correlation with disease severity. METHODS In total, 75 patients with PV (26 men, 49 women) who were planned to receive RTX were enrolled. Disease activity was assessed by using the Pemphigus Disease Area Index (PDAI). Using ELISA, anti-Dsg1,3 and anti-γ/ε nAchR Abs were determined at baseline and 3 months after RTX treatment. RESULTS At baseline, 53.33% patients had positive values for anti-Dsg1, 89.33% for anti-Dsg3 and 13.33% for anti-γ/ε nAchR Abs. All patients with positive anti-γ/ε nAchR Abs had the mucocutaneous phenotype. PDAI, anti-Dsg1,3 and anti-γ/ε nAchR values were dramatically decreased 3 months after RTX infusion (P < 0.001). There was a significant positive correlation between disease activity and anti-γ/ε nAchR values at baseline (P = 0.04), whereas no significant correlation was observed between anti-Dsg1,3 and anti-γ/ε nAchR values at baseline and 3 months after RTX infusion. CONCLUSION The reduction in anti-γ/ε nAchR Abs with clinical improvement in this study may suggest a synergic role for anti-γ/ε nAchR Abs with anti-Dsg1,3 Abs, or it could be an epiphenomenon.
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Affiliation(s)
- R Toosi
- Autoimmune Bullous Diseases Research Center, Department of Dermatology, Tehran University of Medical Sciences, Tehran, Iran
| | - A Teymourzadeh
- Autoimmune Bullous Diseases Research Center, Department of Dermatology, Tehran University of Medical Sciences, Tehran, Iran
| | - H Mahmoudi
- Autoimmune Bullous Diseases Research Center, Department of Dermatology, Tehran University of Medical Sciences, Tehran, Iran
| | - K Balighi
- Autoimmune Bullous Diseases Research Center, Department of Dermatology, Tehran University of Medical Sciences, Tehran, Iran
| | - M Daneshpazhooh
- Autoimmune Bullous Diseases Research Center, Department of Dermatology, Tehran University of Medical Sciences, Tehran, Iran
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Amber KT, Valdebran M, Grando SA. Paraneoplastic autoimmune multiorgan syndrome (PAMS): Beyond the single phenotype of paraneoplastic pemphigus. Autoimmun Rev 2018; 17:1002-1010. [DOI: 10.1016/j.autrev.2018.04.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 04/15/2018] [Indexed: 12/20/2022]
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Sinha AA, Sajda T. The Evolving Story of Autoantibodies in Pemphigus Vulgaris: Development of the "Super Compensation Hypothesis". Front Med (Lausanne) 2018; 5:218. [PMID: 30155465 PMCID: PMC6102394 DOI: 10.3389/fmed.2018.00218] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Accepted: 07/16/2018] [Indexed: 12/11/2022] Open
Abstract
Emerging data and innovative technologies are re-shaping our understanding of the scope and specificity of the autoimmune response in Pemphigus vulgaris (PV), a prototypical humorally mediated autoimmune skin blistering disorder. Seminal studies identified the desmosomal proteins Desmoglein 3 and 1 (Dsg3 and Dsg1), cadherin family proteins which function to maintain cell adhesion, as the primary targets of pathogenic autoAbs. Consequently, pathogenesis in PV has primarily considered to be the result of anti-Dsg autoAbs alone. However, accumulating data suggesting that anti-Dsg autoAbs by themselves cannot adequately explain the loss of cell-cell adhesion seen in PV, nor account for the disease heterogeneity exhibited across PV patients has spurred the notion that additional autoAb specificities may contribute to disease. To investigate the role of non-Dsg autoAbs in PV, an increasing number of studies have attempted to characterize additional targets of PV autoAbs. The recent advent of protein microarray technology, which allows for the rapid, highly sensitive, and multiplexed assessment of autoAb specificity has facilitated the comprehensive classification of the scope and specificity of the autoAb response in PV. Such detailed deconstruction of the autoimmune response in PV, beyond simply tracking anti-Dsg autoAbs, has provided invaluable new insights concerning disease mechanisms and enhanced disease classification which could directly translate into superior tools for prognostics and clinical management, as well as the development of novel, disease specific treatments.
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Affiliation(s)
- Animesh A Sinha
- Department of Dermatology, University at Buffalo, Buffalo, NY, United States
| | - Thomas Sajda
- Department of Dermatology, University at Buffalo, Buffalo, NY, United States
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Lai O, Recke A, Zillikens D, Kasperkiewicz M. Influence of cigarette smoking on pemphigus - a systematic review and pooled analysis of the literature. J Eur Acad Dermatol Venereol 2018; 32:1256-1262. [DOI: 10.1111/jdv.14886] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 01/26/2018] [Indexed: 01/21/2023]
Affiliation(s)
- O. Lai
- Department of Dermatology; University of Illinois at Chicago; Chicago IL USA
| | - A. Recke
- Department of Dermatology; University of Lübeck; Lübeck Germany
| | - D. Zillikens
- Department of Dermatology; University of Lübeck; Lübeck Germany
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Paraneoplastic Pemphigus. A Life-Threatening Autoimmune Blistering Disease. ACTAS DERMO-SIFILIOGRAFICAS 2017; 108:902-910. [DOI: 10.1016/j.ad.2017.04.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Revised: 04/16/2017] [Accepted: 04/18/2017] [Indexed: 11/18/2022] Open
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Tirado-Sánchez A, Bonifaz A. Paraneoplastic Pemphigus. A Life-Threatening Autoimmune Blistering Disease. ACTAS DERMO-SIFILIOGRAFICAS 2017. [DOI: 10.1016/j.adengl.2017.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Chernyavsky AI, Galitovskiy V, Grando SA. Molecular mechanisms of synergy of corneal muscarinic and nicotinic acetylcholine receptors in upregulation of E-cadherin expression. Int Immunopharmacol 2015; 29:15-20. [DOI: 10.1016/j.intimp.2015.04.036] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 03/31/2015] [Accepted: 04/17/2015] [Indexed: 12/20/2022]
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Pemphigus vulgaris antibodies target the mitochondrial nicotinic acetylcholine receptors that protect keratinocytes from apoptolysis. Int Immunopharmacol 2015; 29:76-80. [PMID: 25998908 DOI: 10.1016/j.intimp.2015.04.046] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2015] [Revised: 04/04/2015] [Accepted: 04/23/2015] [Indexed: 11/23/2022]
Abstract
The mechanism of detachment and death of keratinocytes in pemphigus vulgaris (PV) involves pro-apoptotic action of constellations of autoantibodies determining disease severity and response to treatment. The presence of antibodies to nicotinic acetylcholine receptors (nAChRs) and the therapeutic efficacy of cholinomimetics in PV is well-established. Recently, adsorption of anti-mitochondrial antibodies abolished the ability of PVIgGs to cause acantholysis, demonstrating their pathophysiological significance. Since, in addition to cell membrane, nAChRs are also present on the mitochondrial outer membrane, wherein they act to prevent activation of intrinsic (mitochondrial apoptosis), we hypothesized that mitochondrial (mt)-nAChRs might be targeted by PVIgGs. To test this hypothesis, we employed the immunoprecipitation-western blot assay of keratinocyte mitochondrial proteins that visualized the α3, α5, α7, α9, α10, β2 and β4 mt-nAChR subunits precipitated by PV IgGs, suggesting that functions of mt-nAChRs are compromised in PV. To pharmacologically counteract the pro-apoptotic action of anti-mitochondrial antibodies in PV, we exposed naked keratinocyte mitochondria to PVIgGs in the presence of the nicotinic agonist nicotine ± antagonists, and measured cytochrome c (CytC) release. Nicotine abolished PVIgG-dependent CytC release, showing a dose-dependent effect, suggesting that protection of mitochondria can be a novel mechanism of therapeutic action of nicotinic agonists in PV. The obtained results indicated that the mt-nAChRs targeted by anti-mitochondrial antibodies produced by PV patients are coupled to inhibition of CytC release, and that nicotinergic stimulation can abolish PVIgG-dependent activation of intrinsic apoptosis in KCs. Future studies should determine if and how the distinct anti-mt-nAChR antibodies penetrate KCs and correlate with disease severity.
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Chernyavsky AI, Marchenko S, Phillips C, Grando SA. Auto/paracrine nicotinergic peptides participate in cutaneous stress response to wounding. DERMATO-ENDOCRINOLOGY 2013; 4:324-30. [PMID: 23467535 PMCID: PMC3583894 DOI: 10.4161/derm.22594] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Restoration of epidermal barrier (epithelialization), is a major component of cutaneous response to stress imposed by wounding. Learning physiologic regulation of epithelialization may lead to novel treatments of chronic wounds. The non-canonical ligands of nicotinic acetylcholine receptors SLURP (secreted mammalian Ly-6/urokinase-type plasminogen activator receptor-related proteins)-1 and -2 are produced by keratinocytes (KCs) and inflammatory cells to augment physiologic responses to non-neuronal acetylcholine, suggesting that they can affect wound epithelialization and inflammation. In this study, recombinant (r)SLURP-1 and -2 exhibited dose dependent effects on migration of cultured KCs, and monoclonal antibodies inactivating auto/paracrine SLURPs in mouse skin delayed wound epithelialization. While effects of rSLURPs on migration were opposite, with rSLURP-1 inhibiting and rSLURP-2 stimulating migration of KCs, each anti-SLURP antibody produced a negative effect on epithelialization in vivo, suggesting their more extensive than regulation of keratinocyte migration involvement in wound repair. Since inflammation plays an important role in stress response to wounding, we measured inflammation biomarkers in wounds treated with anti-SLURP antibodies. Both anti-SLURP-1 and -2 antibodies, or their mixture, caused significant elevation of wound myeloperoxidase, IL-1β, IL-6 and TNFα. Taken together, results of this study demonstrated that SLURP-1 slows crawling locomotion of KCs, and exhibits a strong anti-inflammatory activity in wound tissue. In contrast, SLURP-2 facilitates lateral migration of KCs, but shows a lesser anti-inflammatory capacity. Thus, combined biologic activities of both SLURPs may be required for normal stress response to skin wounding, which favors clinical trial of rSLURP-1 and -2 in wounds that fail to heal.
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Affiliation(s)
- Alex I Chernyavsky
- Departments of Dermatology and Biochemistry; University of California; Irvine, CA USA
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Grando SA. Muscarinic receptor agonists and antagonists: effects on keratinocyte functions. Handb Exp Pharmacol 2012:429-50. [PMID: 22222709 DOI: 10.1007/978-3-642-23274-9_18] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The stratified epithelium enveloping the skin and lining the surfaces of oral and vaginal mucosa is comprised by keratinocytes that synthesize, secrete, degrade, and respond to acetylcholine via muscarinic and nicotinic receptors. The two pathways may compete or synergize with one another, so that net biologic effect represents the biologic sum of the effects of distinct acetylcholine receptors expressed by a keratinocyte at a particular stage of its development. Keratinocytes express a unique combination of muscarinic receptor subtypes at each stage of their development. Experimental results indicate that muscarinic receptors expressed in human keratinocytes regulate their viability, proliferation, migration, adhesion, and terminal differentiation, hair follicle cycling, and secretion of humectants, cytokines, and growth factors. Learning the muscarinic pharmacology of keratinocyte development and functions has salient clinical implications for patients with nonhealing wounds, mucocutaneous cancers, and various autoimmune and inflammatory diseases. Successful therapy of pemphigus lesions with topical pilocarpine and disappearance of psoriatic lesions due to systemic atropine therapy illustrate that such therapeutic approach is feasible.
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Affiliation(s)
- Sergei A Grando
- Departments of Dermatology and Biological Chemistry, University of California, 134 Sprague Hall, Irvine, CA 92697, USA.
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Botelho-Nogueira L, Quarantini L, Miranda-Scippa Â. Use of anticholinergic drugs and worsening of pemphigus foliaceus in a patient with bipolar disorder. BRAZILIAN JOURNAL OF PSYCHIATRY 2011; 33:412-3. [DOI: 10.1590/s1516-44462011000400017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
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Abstract
The goal of contemporary research in pemphigus vulgaris and pemphigus foliaceus is to achieve and maintain clinical remission without corticosteroids. Recent advances of knowledge on pemphigus autoimmunity scrutinize old dogmas, resolve controversies, and open novel perspectives for treatment. Elucidation of intimate mechanisms of keratinocyte detachment and death in pemphigus has challenged the monopathogenic explanation of disease immunopathology. Over 50 organ-specific and non-organ-specific antigens can be targeted by pemphigus autoimmunity, including desmosomal cadherins and other adhesion molecules, PERP cholinergic and other cell membrane (CM) receptors, and mitochondrial proteins. The initial insult is sustained by the autoantibodies to the cell membrane receptor antigens triggering the intracellular signaling by Src, epidermal growth factor receptor kinase, protein kinases A and C, phospholipase C, mTOR, p38 MAPK, JNK, other tyrosine kinases, and calmodulin that cause basal cell shrinkage and ripping desmosomes off the CM. Autoantibodies synergize with effectors of apoptotic and oncotic pathways, serine proteases, and inflammatory cytokines to overcome the natural resistance and activate the cell death program in keratinocytes. The process of keratinocyte shrinkage/detachment and death via apoptosis/oncosis has been termed apoptolysis to emphasize that it is triggered by the same signal effectors and mediated by the same cell death enzymes. The natural course of pemphigus has improved due to a substantial progress in developing of the steroid-sparing therapies combining the immunosuppressive and direct anti-acantholytic effects. Further elucidation of the molecular mechanisms mediating immune dysregulation and apoptolysis in pemphigus should improve our understanding of disease pathogenesis and facilitate development of steroid-free treatment of patients.
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Affiliation(s)
- Sergei A Grando
- Department of Dermatology, University of California, Irvine, CA 92697, USA.
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Czernik A, Camilleri M, Pittelkow MR, Grando SA. Paraneoplastic autoimmune multiorgan syndrome: 20 years after. Int J Dermatol 2011; 50:905-14. [DOI: 10.1111/j.1365-4632.2011.04868.x] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Induction of hyper-adhesion attenuates autoimmune-induced keratinocyte cell–cell detachment and processing of adhesion molecules via mechanisms that involve PKC. Exp Cell Res 2010; 316:580-92. [DOI: 10.1016/j.yexcr.2009.10.005] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2009] [Revised: 10/01/2009] [Accepted: 10/02/2009] [Indexed: 11/20/2022]
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Abstract
In this new century of pemphigus research, the search for novel treatments is switching from a monospecific approach, focused on immunosuppression, to a polyspecific approach that includes drugs acting on novel pathophysiologic pathways. Current research argues that acantholysis in pemphigus occurs as an active process resulting from intracellular signaling triggered as a result of IgG binding to the keratinocyte membrane antigens in a receptor-ligand fashion. Recent progress regarding the pathophysiology of pemphigus acantholysis led to, or was accompanied by, breakthrough discoveries of safer treatments. Both the identification of cell-surface receptors to acetylcholine among the nondesmoglein (Dsg) targets for pemphigus antibodies, and the elucidation of the cholinergic control of keratinocyte cell adhesion provide an explanation for the therapeutic efficacy of cholinomimetics in patients with pemphigus. In patients' skin, Fas-L, TNFalpha, and, probably, IL-1alpha act as autocrine/paracrine co-factors for anti-keratinocyte IgG. Thus, it appears that an array of interconnected signaling cascades is responsible for acantholysis and cell death in pemphigus. Future studies should define the signaling pathways mediating acantholysis that occur in individual pemphigus patients and identify the membrane proteins (receptors) triggering signaling along a specific pathway upon their ligation by autoantibodies. It will be important to determine which pathway 1) leads directly to a loss of cell-cell adhesion (primary pathway), 2) which is being activated due to cell shrinkage/detachment (secondary pathway), 3) which contributes to utilization of altered proteins and organelles (scavenging pathway), and 4) which represents the cell defense (protective pathway). To dissect out the signaling pathways originating from binding of pemphigus IgG to non-Dsg targets on the keratinocyte plasma membrane experiments should be performed in cultures of murine keratinocytes grown from the Dsg3-/- mice or human keratinocytes with the knocked-down expression of the Dsg1 and/or Dsg3 gene by the RNA interference.
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Affiliation(s)
- Sergei A Grando
- Department of Dermatology, University of California-Davis, Sacramento, CA 95816, USA.
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Abstract
The pathogenesis of pemphigus vulgaris (PV) is a highly controversial, "hot" topic that has received considerable enrichment in recent years by both clinical and basic researchers. On the one hand, the classical view of desmogleins (Dsg) as main targets of this autoimmune disease is supported by the characterization of pathogenic anti-Dsg3 antibodies from both patients and animal models. On the other hand, fundamental doubt has been raised towards this monopathogenic view by several independent factors: (1) pemphigus lesions can be induced in Dsg3-knockout (KO) mice; (2) pemphigus sera contain multiple autoantibodies against different adhesion molecules and also cholinergic receptors; (3) experimental inhibition of PV IgG induced acantholysis can be obtained by interference with different signaling cascades regulating both calcium homeostasis and apoptosis; and (4) cholinergic agonists exhibit anti-acantholytic activity both in vitro and in vivo. The field is open for controlled clinical trials and further basic research to unfold the true story of the pemphigus enigma and provide the basis for a better treatment of pemphigus patients.
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Affiliation(s)
- Hjalmar Kurzen
- Department of Dermatology, University Medical Center Mannheim, University of Heidelberg, Heidelberg, Germany.
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Billet SE, Grando SA, Pittelkow MR. Paraneoplastic autoimmune multiorgan syndrome: Review of the literature and support for a cytotoxic role in pathogenesis. Autoimmunity 2009; 39:617-30. [PMID: 17101506 DOI: 10.1080/08916930600972099] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Paraneoplastic autoimmune multiorgan syndrome (PAMS), first described as paraneoplastic pemphigus in 1990, is an autoimmune blistering disease associated with neoplasia. Patients with this rare disorder have severe blistering and painful erosions of the oral cavity and various other cutaneous findings ranging from classic pemphigus vulgaris-like erosions to targetoid lesions resembling erythema multiforme and papular to more confluent lichenoid eruptions. This syndrome involves multiple organ systems, and its high rate of mortality often stems from constrictive bronchiolitis obliterans. The histologic findings are as diverse as the clinical presentation, often making diagnosis difficult initially. Immunodermatologic and serologic laboratory findings typically establish the diagnosis. These results can be confirmed with immunoprecipitation profiling of specific molecular weight protein markers. The proposed pathogenesis of PAMS continues to evolve, and recent reports implicate the involvement of cell-mediated, cytotoxic immunity, in addition to humoral autoantibodies. This review characterizes and summarizes the clinical, pathologic, and immunohistologic features of PAMS and outlines the possible role of cytotoxic T lymphocytes in the pathogenesis of this syndrome.
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Affiliation(s)
- Sara E Billet
- Department of Dermatology, Mayo Clinic, Rochester, MN 55905, USA
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Lanza A, Stellavato A, Heulfe I, Landi C, Gombos F, Cirillo N. Serum of patients with oral pemphigus vulgaris impairs keratinocyte wound repair in vitro: a time-lapse study on the efficacy of methylprednisolone and pyridostigmine bromide. Oral Dis 2009; 15:478-83. [PMID: 19519621 DOI: 10.1111/j.1601-0825.2009.01574.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVES Pemphigus vulgaris (PV) is an autoimmune blistering disease affecting primarily oral mucosa and skin. Among the drugs used for the therapy of pemphigus, both methylprednisolone (MP) and pyridostigmine bromide (PBr) can prevent acantholysis in vitro. However, their putative therapeutic properties in regenerating PV-like lesions and promoting the healing process still remain to be demonstrated. To address this issue, here we have developed a model for studying the process of epithelial cleft regeneration in PV by artificially wounding keratinocyte monolayers. MATERIALS AND METHODS The experimental model was established by scratching confluent monolayers to simulate the epithelial cleft; then, wound regeneration in the presence of submaximal concentrations of PV sera was studied by time-lapse microscopy, with or without the addition of MP and PBr in the culture medium. RESULTS Pemphigus vulgaris serum inhibited epithelial cleft repair of wounded monolayers. Indeed, in the presence of 10% (v/v) PV serum, keratinocytes reached only 2% confluence within 72 h vs an almost complete healing of controls. When administered together with PV sera, MP significantly (P < 0.01) enhanced wound fill by 30% after 72 h. PV-associated wound repair was significantly (P < 0.05) ameliorated by PBr by 24 h and keratinocytes reached 20% confluence after 72 h. Interestingly, neither MP nor PBr could accelerate wound healing when compared with untreated control monolayers. CONCLUSIONS In PV, MP and PBr exert their curative effects in part by enhancing the regeneration properties of keratinocytes. Indeed, our data suggest that both drugs can specifically counterbalance the detrimental effects of PV serum on keratinocyte wound healing. These findings provide an explanation for the efficacy of MP and PBr in the treatment of PV lesions in human skin and oral mucosa.
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Affiliation(s)
- A Lanza
- Regional Center on Craniofacial Malformations-MRI, II University of Naples, Naples 80138, Italy
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Valikhani M, Kavusi S, Chams-Davatchi C, Hallaji Z, Esmaili N, Ghandi N, Farahani F, Lajevardi V. Impact of smoking on pemphigus. Int J Dermatol 2008; 47:567-70. [DOI: 10.1111/j.1365-4632.2008.03645.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Cirillo N, Dell’ Ermo A, Gombos F, Lanza A. The specific proteolysis hypothesis of pemphigus: Does the song remain the same? Med Hypotheses 2008; 70:333-7. [DOI: 10.1016/j.mehy.2006.12.067] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2006] [Accepted: 12/12/2006] [Indexed: 10/23/2022]
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Chernyavsky AI, Arredondo J, Piser T, Karlsson E, Grando SA. Differential coupling of M1 muscarinic and alpha7 nicotinic receptors to inhibition of pemphigus acantholysis. J Biol Chem 2007; 283:3401-3408. [PMID: 18073210 DOI: 10.1074/jbc.m704956200] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The mechanisms mediating and regulating assembly and disassembly of intercellular junctions is a subject of intensive research. The IgG autoantibodies produced in patients with the immunoblistering skin disease pemphigus vulgaris (PV) can induce keratinocyte (KC) dyshesion (acantholysis) via mechanisms that involve signaling kinases targeting intercellular adhesion molecules, thus providing a useful model to study the physiologic regulation of KC cohesion. Previous studies showed that activation of Src and protein kinase C are the earliest events in the PV IgG-induced intracellular phosphorylation cascades and that cholinergic agonists are effective for treating patients with pemphigus. In this study, we sought to elucidate the molecular mechanisms allowing cholinergic agonists to inhibit PV IgG-induced acantholysis and phosphorylation of KC adhesion molecules. The extent of acantholysis in KC monolayers correlated closely with the degree of PV IgG-induced phosphorylation of p120- and beta-catenins, with classic isoforms of protein kinase C mediating serine phosphorylation of beta-catenin and Src-tyrosine phosphorylation of p120-catenin. The M(1) muscarinic agonist pilocarpine blocked phosphorylation of both catenins, which could be abolised by the M(1) antagonist MT7. The alpha7 nicotinic agonist AR-R17779 inhibited phosphorylation of P120-cateinin. The alpha7 antagonist methyllycaconitine abolished the effect of AR-R17779. Okadaic acid abrogated protective effects of agonists on phosphorylation of beta-catenin, and pervanadate, on that of p120-catenin. Stimulation of KCs with pilocarpine significantly (p < 0.05) elevated both serine/threonine and tyrosine phosphatase activities in KCs. AR-R17779 both stimulated tyrosine phosphatase and decreased PV IgG-induced Src activity. Methyllycaconitine released Src activity in intact KCs and caused acantholysis. Thus, downstream signaling from M(1) abolished PV IgG-dependent catenin phosphorylation due to activation of both serine/threonine and tyrosine phosphatases, whereas alpha7 action involved both activation of tyrosine phosphatase and inhibition of Src. These findings identified novel paradigm of regulation of signaling kinases associated with cholinergic receptors and provided mechanistic explanation of therapeutic activity of cholinomimetics in PV patients.
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Affiliation(s)
- Alex I Chernyavsky
- Department of Dermatology, University of California, Irvine, California 92697
| | - Juan Arredondo
- Department of Dermatology, University of California, Irvine, California 92697
| | - Timothy Piser
- AstraZeneca Pharmaceuticals, Wilmington, Delaware 19850
| | - Evert Karlsson
- Karolinska Institute, Lindsbergsgatan 11A, Uppsala 752 40, Sweden
| | - Sergei A Grando
- Department of Dermatology, University of California, Irvine, California 92697.
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Baroni A, Lanza A, Cirillo N, Brunetti G, Ruocco E, Ruocco V. Vesicular and Bullous Disorders: Pemphigus. Dermatol Clin 2007; 25:597-603, ix. [PMID: 17903618 DOI: 10.1016/j.det.2007.07.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Pemphigus is a chronic, autoimmune disease involving the skin and Malpighian mucous membranes. Pemphigus leads to progressive blistering and subsequent erosions. This article describes the etiology and treatment of pemphigus.
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Affiliation(s)
- Adone Baroni
- Department of Dermatology, Second University of Naples, Via Sergio Pansini 5, 80131-Naples, Italy
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Michailidou EZ, Belazi MA, Markopoulos AK, Tsatsos MI, Mourellou ON, Antoniades DZ. Epidemiologic survey of pemphigus vulgaris with oral manifestations in northern Greece: retrospective study of 129 patients. Int J Dermatol 2007; 46:356-61. [PMID: 17442072 DOI: 10.1111/j.1365-4632.2006.03044.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
OBJECTIVE To evaluate the epidemiology of pemphigus vulgaris (PV) in a Greek population and to compare it with other countries. MATERIALS AND METHODS A retrospective study was conducted based on the records of 129 patients (41 males and 88 females) with PV who visited the Department of the Oral Medicine and Maxillofacial Pathology, Aristotle University of Thessaloniki, Greece and the State Hospital for Skin and Venereal Diseases of Thessaloniki, Greece, between 1985 and 2004. A group of 73 individuals was used as controls. RESULTS The average annual incidence was found to be eight patients per year. The male to female ratio was 1 : 2.25. The difference in the age of onset between the two genders was statistically significant in marginal levels (P = 0.05). In addition, 86.1% of the patients showed oral lesions only, 13.3% oral and skin lesions and 1.3% manifested oral, skin, and ocular lesions. Twenty-eight of the 88 females were in the premenopausal period-of-life. Additionally, 19 males were farmers who had daily contact with organophosphoric pesticides. Co-existing pathologic conditions were present in 75 of the 129 patients, and of these 75 patients six (8%) were diabetics, 15 (20%) presented with hypertension, two (2.6%) faced problems from their thyroid gland, and 10 (13.3%) of the patients complained of allergic reactions. CONCLUSIONS The results of this study demonstrated a relatively high incidence of PV in northern Greece compared with that in other countries. The disease most frequently occurred in the sixth decade-of-life and the majority of the patients manifested oral lesions. Further epidemiological studies are needed to elucidate whether this region is constituted from population groups with high susceptibility to PV.
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Affiliation(s)
- Evangelia Z Michailidou
- Department of Oral Medicine and Maxillofacial Pathology, Aristotle University of Thessaloniki, State Hospital of Skin and Venereal Diseases, Thessaloniki, Greece
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Abstract
Pemphigus is a group of rare autoimmune mucocutaneous bullous diseases with potential significant morbidity and mortality. The two main subtypes are pemphigus vulgaris (PV) and pemphigus foliaceus (PF). Systemic corticosteroid use and other advances in management have dramatically decreased the mortality rate for pemphigus. At present, the primary cause of morbidity and mortality is complications from treatment. Thus, the goal of pemphigus management is to induce and maintain remission with the lowest possible doses of medication and with the fewest side effects. Although our scientific knowledge of pemphigus is advancing and our treatment options are expanding, there are still very few randomized, controlled studies to evaluate the true effectiveness of the available therapies. Here we review the available treatment options and novel therapies for pemphigus and the supporting data.
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Affiliation(s)
- Sarah E Dick
- Department of Dermatology, Philadelphia VA Medical Center, University of Pennsylvania, Philadelphia, PA, USA
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Kurzen H, Henrich C, Booken D, Poenitz N, Gratchev A, Klemke CD, Engstner M, Goerdt S, Maas-Szabowski N. Functional Characterization of the Epidermal Cholinergic System In Vitro. J Invest Dermatol 2006; 126:2458-72. [PMID: 16810300 DOI: 10.1038/sj.jid.5700443] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The aim of this study was to analyze the influence of cholinergic and anticholinergic drugs on epidermal physiology using organotypic cocultures (OTCs). Blocking of all acetylcholine receptors (AChRs) by combined treatment with mecamylamine and atropine or treatment with strychnine (blocking alpha9nAChR) for 7-14 days resulted in a complete inhibition of epidermal differentiation and proliferation. Blockage of nicotinic (n)AChR with mecamylamine led to a less pronounced delay in epidermal differentiation and proliferation than blockage of muscarinic (m)AChR with atropine, evidenced by reduced epithelial thickness and expression of terminal differentiation markers like cytokeratin 2e or filaggrin. In OTCs treated with atropine, mecamylamine, or strychnine, we could demonstrate intracellular lipid accumulation in the lower epidermal layers, indicating a severely disturbed epidermal barrier. In addition, we observed prominent acantholysis in the basal and lower suprabasal layers in mecamylamine-, atropine-, and strychnine-treated cultures, accompanied by a decreased expression of cell adhesion proteins. This globally reduced cell adhesion led to cell death via intrinsic activation of apoptosis. In contrast, stimulation of nAChR and mAChR with cholinergic drugs resulted in a significantly thickened epithelium, accompanied by an improved epithelial maturation. In summary, we show that epidermal AChR are crucially involved in the regulation of epidermal homeostasis.
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Affiliation(s)
- Hjalmar Kurzen
- Department of Dermatology, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany.
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Grando SA. Viewpoint 6. Exp Dermatol 2006. [DOI: 10.1111/j.1600-0625.2006.00499_10.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Paus R, Amagai M, Ahmed AR, Kitajima Y, Bystryn JC, Milner Y, Gniadecki R, Hertl M, Pincelli C, Fridkis-Hareli M, Aoyama Y, Frušić-Zlotkin M, Müller E, David M, Mimouni D, Vind-Kezunovic D, Michel B, Mahoney M, Grando S. Are desmoglein autoantibodies essential for the immunopathogenesis of pemphigus vulgaris, or just ‘witnesses of disease'? Exp Dermatol 2006. [DOI: 10.1111/j.1600-0625.2006.00499.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Grando SA, Pittelkow MR, Schallreuter KU. Adrenergic and Cholinergic Control in the Biology of Epidermis: Physiological and Clinical Significance. J Invest Dermatol 2006; 126:1948-65. [PMID: 16912692 DOI: 10.1038/sj.jid.5700151] [Citation(s) in RCA: 200] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The presence of an autocrine adrenergic and cholinergic intra/intercellular signal transduction network in the human epidermis contributes significantly to homeostatic and compensatory responses regulating vital functions in keratinocytes and melanocytes. The ligands produced control autocrine and paracrine loops to initiate responses through cognate receptors expressed within the same or adjacent cells. The epidermal adrenergic signal controls calcium homeostasis, cell growth, differentiation, motility, and pigmentation via the beta2 and alpha1 adrenoceptors. The cholinergic system is highly complex comprising both nicotinic and muscarinic receptors with multiple subtypes and this system plays an important role in keratinocyte cell cycle progression, differentiation, directional migration, adhesion, and apoptotic secretion. Moreover, lymphocytes also express adrenergic and cholinergic receptors. Both types of signal transduction receptors are coupled to classical intracellular second messenger pathways, including cAMP-, cGMP-, and calcium-mediated downstream responses. To date, it has been recognized that several dermatoses such as psoriasis, atopic dermatitis, Mal de Meleda, vitiligo, palmoplantar pustulosis, and pemphigus may be mediated, in part, by the non-neuronal adrenergic/cholinergic systems. A detailed understanding of the physiology and pathophysiology of the adrenergic/cholinergic network in the skin could offer the development of specific drugs for novel treatment modalities.
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Affiliation(s)
- Sergei A Grando
- Department of Dermatology, University of California, Davis, 95817, USA.
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Lanza A, Cirillo N, Femiano F, Gombos F. How does acantholysis occur in pemphigus vulgaris: a critical review. J Cutan Pathol 2006; 33:401-12. [PMID: 16776715 DOI: 10.1111/j.0303-6987.2006.00523.x] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Pemphigus vulgaris is a life-threatening autoimmune blistering disease targeting skin and mucous membranes, characterized by disruption of keratinocytes' adhesion termed acantholysis. Today multiple classes of targets are considered to play a role in the genesis of the acantholysis; of these, the classical pemphigus antigens, desmosomal cadherins (desmoglein 1 and 3) are the best characterized and considered as the most important. Additional antigens include the novel epithelial acetylcholine receptors (alpha9 and pemphaxin). Thus, acantholysis in pemphigus seems to result from a cooperative action of antibodies to different keratinocyte self-antigens, but the mechanisms by which epithelial cleft occurs are not yet clearly understood. In fact, the binding of the autoantibodies to these targets generates a plethora of biological effects due, on one hand, to their direct interference with adhesive function and, on the other, to more complex events involving intracellular pathways that modify proteases activity or calcium metabolism, leading to loss of cell-cell adhesion.
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Affiliation(s)
- Alessandro Lanza
- Regional Center on Craniofacial Malformations, School of Medicine, II University of Naples, 80100 Naples, Italy.
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Abstract
The non-neuronal cholinergic system of human epidermis includes the keratinocyte (KC) acetylcholine (ACh) axis composed of the enzymes mediating ACh synthesis and degradation, and two classes of ACh receptors, the nicotinic and muscarinic ACh receptors, mediating biological effects of the cutaneous cytotransmitter ACh. Regulation of KC cell-cell and cell-matrix adhesion is one of the important biological functions of cutaneous ACh. The downstream targets of ACh effects mediated by distinct ACh receptor subtypes include both the intercellular adhesion molecules, such as classical and desmosomal cadherins, and integrins mediating KC adhesion to a substrate. The signaling pathways include activation or inhibition of kinase cascades resulting in either up- or down-regulation of the expression of cell adhesion molecules or changes in their phosphorylation status, or both. The components of the KC ACh axis are involved in cutaneous blistering in patients with autoimmune pemphigus, junctional and dystrophic forms of epidermolysis bullosa, thermal burns, and mustard-induced vesication. Recent progress with the development of antiacantholytic therapies of patients with pemphigus using cholinomimetics indicates that cholinergic drugs may be a promising approach for other cutaneous blistering disorders.
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Affiliation(s)
- Sergei A Grando
- Department of Dermatology, University of California at Davis, Sacramento, CA 95817, USA.
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Abstract
BACKGROUND The high rate of morbidity and mortality resulting from long-term use of corticosteroids in pemphigus vulgaris (PV) warrants discovery of a new treatment strategy. Based on a new theory on the pathophysiology of PV, cholinomimetics can block the process of blister formation. AIMS This study was conducted to evaluate the clinical effectiveness of Pilocarpine gel in the treatment of skin lesions of PV. METHODS In a double-blind, placebo-controlled study, three PV patients with a total of 64 skin lesions were treated by either Pilocarpine or placebo gel. After 15 days of treatment an epithelialization index of the two groups was compared. RESULTS The mean of the epithelialization index in skin lesions that received Pilocarpine was significantly higher than that of the placebo group (40.3 +/- 1.7 vs. 24.4 +/- 3.3, P < 0.001). CONCLUSIONS Pilocarpine gel effectively treats PV.
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Affiliation(s)
- Fariba Iraji
- Department of Dermatology, AL-Zahra Hospital, Isfahan University of Medical Sciences, Iran.
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Affiliation(s)
- Robert A Schwartz
- Department of Dermatology, New Jersey Medical School, Newark, NJ 07103, USA.
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Abstract
Pemphigus is an umbrella term for more than 10 different epidermal disease types and subtypes currently classified under this name. Characteristic for pemphigus are the presence of autoantibodies against epidermal cell adhesion structures (desmosomes), leading to a breakdown of cutaneous and mucosal barriers. The two most important disease types for dentists are pemphigus vulgaris and paraneoplastic pemphigus because they almost invariably present with oral manifestations. This article highlights current knowledge on the pathophysiology, the clinical signs, and the practical clinical diagnostic approach to these two serious disorders and treatment.
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Affiliation(s)
- Dominik A Ettlin
- Clinic for Masticatory Disorders and Complete Dentures, Center for Dental and Oral Medicine and Cranio-Maxillofacial Surgery, University of Zurich, Plattenstrasse 11, CH-8028 Zurich, Switzerland.
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Abstract
The adverse effects of tobacco on the skin are well known but the role of nicotine is more controversial. Nicotinic receptors are expressed in the skin, on keratinocytes, fibroblasts and blood vessels. Nicotine induces vasoconstriction associated with local hyperaemia. It inhibits inflammation through effects on central and peripheral nervous system and through direct effect on immune cells. It delays wound healing and accelerates skin aging. The role of nicotine on skin diseases remains unclear. Therapeutic effects of nicotine could be possible and this a new stimulating field of research.
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Affiliation(s)
- Laurent Misery
- Laboratory of Cutaneous Neurobiology, Department of Dermatology, University Hospital, Brest, France.
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Nguyen VT, Chernyavsky AI, Arredondo J, Bercovich D, Orr-Urtreger A, Vetter DE, Wess J, Beaudet AL, Kitajima Y, Grando SA. Synergistic control of keratinocyte adhesion through muscarinic and nicotinic acetylcholine receptor subtypes. Exp Cell Res 2004; 294:534-49. [PMID: 15023540 DOI: 10.1016/j.yexcr.2003.12.010] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2003] [Indexed: 11/30/2022]
Abstract
The biological mechanisms involved in initiating, coordinating, and ultimately terminating cell-cell adhesion in the stratified epithelium are not well understood at present. This study was designed to elucidate the roles of the muscarinic M3, the nicotinic alpha3, and the mixed muscarinic-nicotinic alpha9 acetylcholine receptors in physiologic control of keratinocyte adhesion. Both muscarinic and nicotinic antagonists caused keratinocyte detachment and reversibly increased the permeability of keratinocyte monolayers, indicative of the involvement of both muscarinic and nicotinic pathways in the cholinergic control of keratinocyte adhesion. Since phosphorylation of adhesion proteins plays an important role in rapid assembly and disassembly of intercellular junctions, we measured muscarinic and nicotinic effects on phosphorylation of keratinocyte adhesion molecules. The phosphorylation levels of E-cadherin, beta-catenin, and gamma-catenin increased following pharmacological blockage of muscarinic receptors. Long-term blocking of alpha3, alpha9, and M3 receptor signaling pathways with antisense oligonucleotides resulted in cell-cell detachment and changes in the expression levels of E-cadherin, beta-catenin, and gamma-catenin in cultured human keratinocytes. Simultaneous inhibition of several receptor subtypes with a mixture of antisense oligonucleotides produced intensified abnormalities with cell adhesion. Moreover, altered cell-cell adhesion was found in the stratified epithelium of alpha3, alpha9, and M3 receptor knockout mice. Keratinocytes from these mice exhibited abnormal expression of adhesion molecules at both the protein and the mRNA levels. Thus, our data indicate that the alpha3, alpha9, and M3 acetylcholine receptors play key roles in regulating in a synergistic mode keratinocyte adhesion, most probably by modulating cadherin and catenin levels and activities. These findings may aid in the development of novel methods useful for the treatment of skin adhesion diseases and tumor metastasis.
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MESH Headings
- Animals
- Cadherins/metabolism
- Cell Adhesion/drug effects
- Cell Adhesion/genetics
- Cell Adhesion Molecules/metabolism
- Cell Communication/drug effects
- Cell Communication/genetics
- Cell Membrane/drug effects
- Cell Membrane/metabolism
- Cells, Cultured
- Cytoskeletal Proteins/metabolism
- Desmoplakins
- Humans
- Keratinocytes/drug effects
- Keratinocytes/metabolism
- Mice
- Mice, Knockout
- Muscarinic Antagonists/pharmacology
- Nicotinic Antagonists/pharmacology
- Oligonucleotides, Antisense/pharmacology
- Phosphorylation
- RNA, Messenger/drug effects
- RNA, Messenger/metabolism
- Receptors, Muscarinic/drug effects
- Receptors, Muscarinic/genetics
- Receptors, Muscarinic/metabolism
- Receptors, Nicotinic/deficiency
- Receptors, Nicotinic/drug effects
- Receptors, Nicotinic/genetics
- Receptors, Nicotinic/metabolism
- Trans-Activators/metabolism
- beta Catenin
- gamma Catenin
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Affiliation(s)
- Vu Thuong Nguyen
- Department of Dermatology, University of California, Davis, Sacramento, CA 95817, USA
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