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PubMed1990

The relationship of pemphigus to neoplasia.

A statistically increased incidence of malignancy has been observed in patients with pemphigus. A review of the literature reveals 42 cases of nonthymic malignancies and 18 cases of thymic malignancies. A significant predominance of men, with mean age at onset of 50 years, was observed. Pemphigus vulgaris is more common in patients with nonthymic neoplasms, whereas pemphigus foliaceus or pemphigus erythematosus and pemphigus vulgaris are equally common in patients with thymic neoplasms. Lymphoreticular malignancies, especially Kaposi's sarcoma, are most frequently observed. The majority of patients with nonthymic neoplasms have pemphigus before the detection of the malignancy and have a favorable 5-year survival rate after tumor resection. The majority of the patients with thymic neoplasms have a thymoma before the development of pemphigus. In some patients pemphigus develops after thymectomy and myasthenia gravis is often associated. Overall, 37 of the 60 patients, or 61%, had a neoplasm of the immune system.

Adult↗
PubMed1998

Epidemiologic analysis and clinical course of 84 consecutive cases of pemphigus in eastern Sicily.

BACKGROUND: The purpose of this study was to examine the clinical and epidemiologic features of pemphigus in eastern Sicily. METHODS: All new cases of pemphigus seen in the Dermatology Clinic at the University of Catania during the period January 1982 to June 1996 were studied retrospectively. RESULTS: Eighty-four patients with pemphigus represented 1.3% of 6653 patients admitted to our clinic in a 13.5-year period, with an average annual incidence of six cases per year. The most common form of presentation was pemphigus vulgaris (PV) (75%), followed by pemphigus erythematosus (17%), pemphigus herpetiformis (6%), and pemphigus vegetans (2%). In 6% of PV patients, the oral lesions were not followed by skin involvement, and the lag time between the onset of illness and the final diagnosis in five PV cases was prolonged, ranging from 4 to 7 years, probably due to the mild clinical presentation of the disease. Two trauma-related PV cases were documented; in one case, the blisters were located in a surgical scar and in the other in a burn scar. CONCLUSIONS: Our findings showed that pemphigus has a relatively high prevalence in eastern Sicily compared with other Italian regions; PV is the most common variant, and may have a mild course not always requiring aggressive therapy.

Adult↗
PubMed1998

Treatment of pemphigus.

A general review of the treatment of autoimmune diseases classified as pemphigus is presented and includes pemphigus vulgaris, pemphigus vegetans, pemphigus foliaceous, pemphigus erythematosus, druginduced pemphigus, IgA pemphigus, and paraneoplastic pemphigus. The nurse plays an essential role in educating patients and their families about local skin and oral care related to these diseases.

Adrenal Cortex Hormones↗
PubMed2004

Systemic lupus erythematosus and pemphigus vulgaris: association or coincidence.

Few cases have been published relating systemic lupus erythematosus (SLE) and pemphigus vulgaris (PV). We describe a patient with this association. A 35-year old woman who started to develop persistent pain and morning stiffness of proximal inter and metacarpo-phalangeal joints. During the following year, the patient recalled the onset of blisters on both legs, face, arms and thorax, as well as erosions appearing on oral mucous membranes. We observed generalized multiple erosions on her trunk and legs, flaccid bullae located on her right thigh and multiple erosions on oral mucous membranes. A skin biopsy reported PV Direct immunofluorescence on the perilesional skin specimen, showed beehive intercellular IgG deposits in the epidermis (+++), suggesting PV; granular discontinuous IgM and C3 deposits in the dermal-epidermal union (+++), suggesting SLE. Direct immunofluorescence of the healthy unexposed skin specimen, reported granular discontinuous IgG deposits in the dermal-epidermal union and beehive intercellular IgG deposits in the lower levels of the epidermis (+++); granular continuous IgM deposits in the dermal-epidermal union (+++). The results of rheumatic studies were obtained as follows: ANA :3 +, Anti-DNA, Anti-Sm, Anti-Ro and Anti-La :4 + . The definite diagnosis was PVand SLE. Treatment with 50 mg of prednisone daily with good evolution.

Adult↗
PubMed2003

Cyclosporin: applications in small animal dermatology.

Cyclosporin has been increasingly used for the treatment of skin diseases in small animals. Reported uses include the treatment of atopy, cutaneous lupus erythematosus, feline acquired alopecia resembling pseudopelade of humans, pemphigus erythematosus, pemphigus foliaceus, perianal fistulae and sebaceous adenitis. In addition, cyclosporin has been used anecdotally for several other skin diseases. Few side effects have been noted at doses therapeutic for dermatologic diseases. Current suggestions for monitoring, and the value of trough cyclosporin serum concentrations for prediction of toxicity and efficacy are discussed.

Administration, Oral↗
PubMed2005

Localization of haptoglobin in normal human skin and some skin diseases.

BACKGROUND: Haptoglobin (Hp) is an acute-phase reactant, known to be produced mainly in the liver. Haptoglobin can also be detected in the cytoplasm of normal epidermal Langerhans cells (LCs), and can prevent their functional maturation. The synthesis of Hp in skin cells has not been well studied. METHODS: We examined Hp expression at mRNA and protein levels by in situ hybridization and immunohistochemistry, respectively, in normal human skin and in the skin of patients with psoriasis, lichen planus, erythroderma, seborrheic keratosis, verruca vulgaris, basal cell carcinoma, systemic lupus erythematosus, pemphigus and bullous pemphigoid. RESULTS: (1) Haptoglobin mRNA was expressed in the epidermal keratinocytes (KCs), the epithelial cells of hair follicles, sebaceous glands and eccrine glands in normal skin and all dermatoses investigated. (2) Whereas compared with normal skin, the Hp mRNA in KCs of patients with psoriasis, lichen planus, erythroderma, seborrhoea keratosis and verruca vulgaris was significantly intensified, it was weaker in patients with systemic lupus erythematosus, pemphigus and bullous pemphigoid. (3) Haptoglobin protein only stained positively in some KCs of patients with psoriasis, lichen planus and erythroderma. (4) Although some but not all epidermal LCs were positively stained with anti-Hp antibody in normal skin and in skin samples from all patients, the ratios of Hp-positive LCs/total LCs were significantly higher in those diseases with intensified Hp mRNA in KCs. CONCLUSIONS: Skin is another extrahepatic organ where Hp can be synthesized by KCs. The expression of Hp mRNA in KCs and the Hp protein in both LCs and KCs appears to be correlated with the amount of inflammation, which might indicate that skin itself is involved in down-regulating the local inflammatory reaction by KC-synthesized Hp.

Haptoglobins↗
PubMed2004

Pemphigus: current therapy.

Pemphigus is an autoimmune skin disease that can present in a variety of forms and can be a challenging disease to manage and treat. An overview of the different forms of pemphigus and diagnostics are discussed including pemphigus foliaceus (PF), pemphigus erythematosus (PE), panepidermal pustular pemphigus (PPP), pemphigus vulgaris (PV) and paraneoplastic pemphigus (PNP). Emphasis on therapy is presented. Included are the most current commonly used therapeutics (glucocorticoids, azathioprine, chlorambucil and tetracycline and niacinamide); current alternative therapeutics (cyclosporin and tacrolimus and mycophenolate mofetil) and additional alternative therapeutics (cyclophosphamide, chrysotherapy, dapsone, sulfasalazine and intravenous immunoglobulin (IVIG) therapy).

Animals↗
PubMed1982

[Senear-Usher syndrome: acquired hemophilia caused by the occurrence of a factor VIII inhibitor].

A 25-year-old woman who had suffered from pemphigus for 2 years developed widespread, scalded skin-like lesions after stopping an immunosuppressive treatment. Histological and immunofluorescence studies confirmed the diagnosis of pemphigus erythematosus. Apart from IgG pemphigus antibodies, granular deposits for IgM at the dermoepidermal junction and circulating antinuclear IgM-antibodies could be detected. Despite of restarting an immunosuppressive regime, the patient developed severe hemophilia due to the occurrence of a factor VIII antiglobulin. Its possible immunopathologic basis is discussed.

Adult↗
PubMed2006

A review of autoimmune skin diseases in domestic animals: I - superficial pemphigus.

In humans, the pemphigus denomination encompasses a group of autoimmune blistering skin diseases with intraepidermal separation resulting from cell-cell detachment by acantholysis. Entities are classified based on the level of blistering in the epidermis, and both superficial (pemphigus foliaceus, IgA pemphigus) and deep (pemphigus vulgaris, pemphigus vegetans and paraneoplastic pemphigus) variants are recognized. In domestic animals, subsets of pemphigus have been recognized since the mid-1970s, and the disease classification resembles that used for human patients. This article reviews up-to-date knowledge on the epidemiology, clinical signs, histopathology, immunopathology and treatment outcome of superficial pemphigus in domestic animals. Detailed information on canine, feline, equine and caprine pemphigus foliaceus, canine and feline pemphigus erythematosus and canine panepidermal pustular pemphigus is provided.

Animal Diseases↗
PubMed1980

The comparative pathology of non-viral bullous skin diseases in domestic animals.

In a review of non-viral bullous skin diseases of domestic animals and a 4-year study of cases presented to the New York State College of Veterinary Medicine, we found 15 diseases: pemphigus vulgaris, pemphigus vegetans, pemphigus foliaceus, pemphigus erythematosus, bullous pemphigoid, systemic lupus erythematosus, dermatitis herpetiformis, toxic epidermal necrolysis, drug eruption, epidermolysis bullosa, epidermolysis bullosa simplex, familial acantholysis, bovine congenital porphyria, impetigo and subcorneal pustular dermatosis. The 15 diseases were placed in five categories: autoimmune, immune-mediated, hereditary, bacterial and idiopathic. A histologic classification of these disorders based on the site of blister formation and other important clinicopathologic, histologic and immunopathologic findings was developed.

Acantholysis↗
PubMed2003

Analyses of autoantigens in a new form of endemic pemphigus foliaceus in Colombia.

BACKGROUND: We previously described a new focus of endemic pemphigus foliaceus in rural areas of El Bagre, Colombia, with clinical and direct immunofluorescence characteristics of pemphigus erythematosus. OBJECTIVE: The aim of this study was to characterize autoantigen profiles for 34 serum samples obtained from patients with this condition. METHODS: Immunofluorescence, various immunoblot analyses with different antigen sources and detection methods, and immunoprecipitation were performed. RESULTS: Immunofluorescence with the use of human skin sections showed IgG autoantibodies against keratinocyte cell surfaces in all 34 serum samples. Some samples also showed weak reactivity with the basement membrane zone. The results of immunoblot and immunoprecipitation analysis indicated that all sera had antibodies reactive with desmoglein 1, the pemphigus foliaceus antigen. In addition, in various immunoblot assays, many sera reacted with several other proteins with molecular weights of 250 kd, 210 kd, and 190 kd, which appear to correspond to desmoplakin I, envoplakin, and periplakin, respectively. CONCLUSION: This endemic pemphigus disease in El Bagre showed immunologic features similar to pemphigus foliaceus or erythematosus. In addition, paraneoplastic pemphigus-like reactivity with various epidermal antigens was detected.

Autoantigens↗
PubMedDate not supplied

[Pemphigus].

Pemphigus is an infrequent, organ-specific, autoimmune bullous disease, which affects the skin, mucous membranes and appendages. Histopathologically, it is characterized by acantholysis. Pemphigus has classically been divided into two major groups, pemphigus vulgaris and pemphigus foliaceus, with their respective clinical variants pemphigus vegetans and pemphigus erythematosus. In recent years, new variants of pemphigus have been described: paraneoplastic pemphigus, IgA pemphigus and pemphigus herpetiformis. This article reviews the epidemiology, etiopathogenesis, clinical symptoms, diagnosis, treatment and prognosis of pemphigus. Advances in molecular biology techniques have made it possible to more precisely identify the different antigens against which antibodies are directed, and to fine-tune ELISA diagnostic techniques. Treating pemphigus vulgaris and foliaceus with general steroids has modified their prognosis; it is estimated that mortality in recent decades is less than 10 %. Managing the clinical complications that appear during the evolution of the pemphigus has contributed to reducing morbidity and mortality.

Humans↗