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Sernicola A, Mazzetto R, Tartaglia J, Ciolfi C, Miceli P, Alaibac M. Role of Human Leukocyte Antigen Class II in Antibody-Mediated Skin Disorders. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1950. [PMID: 38003999 PMCID: PMC10673328 DOI: 10.3390/medicina59111950] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 10/27/2023] [Accepted: 11/02/2023] [Indexed: 11/26/2023]
Abstract
HLA class II molecules are key factors determining susceptibility to autoimmune disorders, and their role in immune-mediated skin conditions such as psoriasis has been extensively investigated. However, there is currently little understanding of their role in antibody-mediated skin diseases such as autoimmune blistering disorders. We researched the available literature using PubMed to narratively review the current knowledge on HLA associations in antibody-mediated blistering skin pathologies. Our results summarized the risk alleles that are identified in the literature, together with certain known protective alleles: in the pemphigus group, alleles HLA-DQB1*0503 and HLA-DRB1*0402 are most commonly associated with disease; in the pemphigoid group, the most studied allele is HLA-DQB1*0301; in epidermolysis bullosa acquisita, few genetic studies are available; in dermatitis herpetiformis, the association with haplotypes HLA-DQ2 and HLA-DQ8 is strongly established; finally, in linear IgA bullous disease, specific HLA alleles may be responsible for pediatric presentations. Our current pathogenic understanding of this group of disorders assigns a key role to predisposing HLA class II alleles that are able to bind disease autoantigens and therefore stimulate antigen-specific autoreactive T cells. The latter engage B lymphocytes that will produce pathogenic autoantibodies. The distribution of HLA alleles and their disease associations are variable across demographics, and an in-depth pathogenetic understanding is needed to support associations between HLA alleles and disease phenotypes. Additionally, in a personalized medicine approach, the identification of HLA alleles associated with the risk of disease may become clinically relevant in identifying susceptible subjects that should avoid exposure to known triggers, such as medication, when possible.
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Singh A, Ganguly S, Chhabra N, Singh V. Rare Co-Existent Dermatitis Herpetiformis and Psoriasis in a Child: A Causal Relationship? Cureus 2022; 14:e29218. [PMID: 36258965 PMCID: PMC9569416 DOI: 10.7759/cureus.29218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/15/2022] [Indexed: 11/05/2022] Open
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Quddusi FI, Youssef MJ, Davis DMR. Dermatologic Manifestations of Systemic Diseases in Childhood. Pediatr Rev 2021; 42:655-671. [PMID: 34850179 DOI: 10.1542/pir.2020-000679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
| | - Molly J Youssef
- Department of Pediatric and Adolescent Medicine.,Department of Dermatology, Mayo Clinic, Rochester, MN
| | - Dawn Marie R Davis
- Department of Pediatric and Adolescent Medicine.,Department of Dermatology, Mayo Clinic, Rochester, MN
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Abstract
Although relatively uncommon, autoimmune bullous diseases carry the risk of increased mortality and can significantly impact quality of life. This group of diseases is broad and encompasses subepidermal conditions like bullous pemphigoid, cicatricial pemphigoid, epidermolysis bullosa acquisita, dermatitis herpetiformis, and linear IgA bullous dermatosis, as well as intraepidermal conditions like pemphigus and its variants. The pathophysiology of each condition is incompletely understood but broadly involves the formation of autoantibodies targeting skin adhesion proteins, a process which relies on a complex interplay between a dysregulated immune system, genetic predisposition, and environmental factors. We review the impact of nutrition on pathogenesis, clinical course, and treatment of various autoimmune bullous diseases.
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Abstract
Dermatitis herpetiformis (DH), presenting with an intense itch and blistering symmetrical rash, typically on the elbows, knees, and buttocks, is a cutaneous manifestation of celiac disease. Though overt gastrointestinal symptoms are rare, three-fourths of patients with DH have villous atrophy in the small bowel, and the rest have celiac-type inflammatory changes. DH affects mostly adults and slightly more males than females. The mean age at onset is about 50 years. DH diagnosis is confirmed by showing granular immunoglobulin A deposits in the papillary dermis. The DH autoantigen, transglutaminase 3, is deposited at the same site in tightly bound immune complexes. At present, the DH-to-celiac disease prevalence is 1:8. The incidence of DH is decreasing, whereas that of celiac disease is increasing, probably because of improved diagnostics. In DH, the treatment of choice for all patients is a gluten-free diet (GFD) in which uncontaminated oats are allowed. At onset, most patients need additional dapsone to rapidly control the rash and itching. Dapsone can be stopped after a mean of 2 years, and a strict lifelong GFD alone is required. Dietary adherence offers an excellent long-term prognosis for patients with DH, with a normal quality of life and all-cause mortality.
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Affiliation(s)
- Timo Reunala
- Celiac Disease Research Center, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.
| | - Kaisa Hervonen
- Celiac Disease Research Center, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Dermatology, Tampere University Hospital, Tampere, Finland
| | - Teea Salmi
- Celiac Disease Research Center, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Dermatology, Tampere University Hospital, Tampere, Finland
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Abstract
BACKGROUND It is not known if genetic background, characteristics at diagnosis, physical and psychological well-being, and adherence to a gluten-free diet are comparable between patients with familial or sporadic celiac disease. These issues were investigated in a follow-up study. METHODS Altogether 1064 patients were analyzed for celiac disease-associated serology, predisposing HLA-DQ, and non-HLA genotypes. Medical data were collected from patient records and supplementary interviews. Current symptoms and quality of life were further evaluated with the Gastrointestinal Symptom Rating Scale (GSRS), the Psychological General Well-Being questionnaire (PGWB), and Short Form 36 (SF-36) questionnaires. RESULTS Familial and sporadic groups differed (P < 0.001) in the reason for diagnosis and clinical presentation at diagnosis, familial patients being more often screen-detected (26% vs. 2%, P < 0.001) and having less often gastrointestinal (49% vs. 69%) and severe symptoms (47% vs. 65%). The groups were comparable in terms of histological damage, frequency of malabsorption, comorbidities, childhood diagnoses, and short-term treatment response. At the time of the study, familial cases reported fewer symptoms (21% vs. 30%, P = 0.004) and lower prevalence of all (78% vs. 86%, P = 0.007), neurological (10% vs. 15%, P = 0.013), and dermatological (9% vs. 17%, P = 0.001) comorbidities. Dietary adherence and GSRS scores were comparable, but familial cases had better quality of life according to PGWB and SF-36. High-risk genotype HLA-DQ2.5/DQ2.5 was more frequent among familial cases, and four non-HLA SNPs were associated with familial celiac disease. CONCLUSIONS Despite the greater proportion of high-risk genotypes, familial cases had milder symptoms at presentation than did sporadic cases. Worse experience of symptoms and poorer quality of life in sporadic disease indicate a need for intensified support.
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First-degree Relatives of Celiac Disease Patients Have Increased Seroreactivity to Serum Microbial Markers. Nutrients 2020; 12:nu12041073. [PMID: 32294897 PMCID: PMC7230150 DOI: 10.3390/nu12041073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 04/02/2020] [Accepted: 04/08/2020] [Indexed: 01/22/2023] Open
Abstract
Risk of celiac disease (CD) is increased in relatives of CD patients due to genetic and possible environmental factors. We recently reported increased seropositivity to anti-Saccharomyces cerevisiae (ASCA), Pseudomonas fluorescens-associated sequence (anti-I2) and Bacteroides caccae TonB-linked outer membrane protein (anti-OmpW) antibodies in CD. We hypothesized these markers also to be overrepresented in relatives. Seropositivity and levels of ASCA, anti-I2 and anti-OmpW were compared between 463 first-degree relatives, 58 untreated and 55 treated CD patients, and 80 controls. CD-associated human leukocyte antigen (HLA)-haplotypes and transglutaminase (tTGab) and endomysium (EmA) antibodies were determined. One or more of the microbial antibodies was present in 75% of relatives, 97% of untreated and 87% of treated CD patients and 44% of the controls. The relatives had higher median ASCA IgA (9.13 vs. 4.50 U/mL, p < 0.001), ASCA IgG (8.91 vs. 5.75 U/mL, p < 0.001) and anti-I2 (absorbance 0.74 vs. 0.32, p < 0.001) levels than controls. There was a weak, positive correlation between tTGab and ASCA (r = 0.31, p < 0.001). Seropositivity was not significantly associated with HLA. To conclude, seropositivity to microbial markers was more common and ASCA and anti-I2 levels higher in relatives of CD patients than controls. These findings were not associated with HLA, suggesting the role of other genetic and environmental factors.
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Affiliation(s)
- T. T. Salmi
- Celiac Disease Research Center Faculty of Medicine and Health Technology Tampere University Tampere Finland
- Department of Dermatology Tampere University Hospital Tampere Finland
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Kauma S, Kaukinen K, Huhtala H, Kivelä L, Pekki H, Salmi T, Saavalainen P, Lindfors K, Kurppa K. The Phenotype of Celiac Disease Has Low Concordance between Siblings, Despite a Similar Distribution of HLA Haplotypes. Nutrients 2019; 11:nu11020479. [PMID: 30823533 PMCID: PMC6412523 DOI: 10.3390/nu11020479] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 02/20/2019] [Accepted: 02/22/2019] [Indexed: 12/12/2022] Open
Abstract
The factors determining the presentation of celiac disease are unclear. We investigated the phenotypic concordance and the distribution of human leukocyte antigen (HLA) risk haplotypes in affected siblings. One hundred sibling pairs were included. Clinical and histological parameters and HLA haplotypes were compared between the first diagnosed indexes and their siblings. The phenotype was categorized into gastrointestinal, extra-intestinal, malabsorption/anemia, and asymptomatic. The phenotype was fully concordant in 21 pairs. The most common concordant phenotype was gastrointestinal (14 pairs). Indexes had more anemia/malabsorption and extra-intestinal symptoms than siblings (45% vs. 20%, p < 0.001 and 33% vs. 12%, p < 0.001, respectively). Twenty siblings and none of the indexes were asymptomatic. The indexes were more often women (81% vs. 63%, p = 0.008). They were also more often seronegative (11% vs. 0%, p = 0.03) and younger (37 vs. 43 year, p < 0.001), and had more severe histopathology (total/subtotal atrophy 79% vs. 58%, p = 0.047) at diagnosis. The indexes and siblings were comparable in other disease features. Pairs with discordant presentation had similar HLA haplotypes more often than the concordant pairs. The phenotype was observed to vary markedly between siblings, with the indexes generally having a more severe presentation. HLA did not explain the differences, suggesting that non-HLA genes and environmental factors play significant roles.
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Affiliation(s)
- Saana Kauma
- Celiac Disease Research Centre, Faculty of Medicine and Life Sciences, Tampere University, 33520 Tampere, Finland.
| | - Katri Kaukinen
- Celiac Disease Research Centre, Faculty of Medicine and Life Sciences, Tampere University, 33520 Tampere, Finland.
- Department of Internal Medicine, Tampere University Hospital, 33521 Tampere, Finland.
| | - Heini Huhtala
- Faculty of Social Sciences, Tampere University, 33520 Tampere, Finland.
| | - Laura Kivelä
- Tampere Centre for Child Health Research, Tampere University and Tampere University Hospital, 33521 Tampere, Finland.
| | - Henna Pekki
- Celiac Disease Research Centre, Faculty of Medicine and Life Sciences, Tampere University, 33520 Tampere, Finland.
| | - Teea Salmi
- Celiac Disease Research Centre, Faculty of Medicine and Life Sciences, Tampere University, 33520 Tampere, Finland.
- Department of Dermatology, Tampere University Hospital, 33521 Tampere, Finland.
| | - Päivi Saavalainen
- Research Program Unit, Immunobiology, and Department of Medical and Clinical Genetics, University of Helsinki, 00014 Helsinki, Finland.
| | - Katri Lindfors
- Celiac Disease Research Centre, Faculty of Medicine and Life Sciences, Tampere University, 33520 Tampere, Finland.
| | - Kalle Kurppa
- Tampere Centre for Child Health Research, Tampere University and Tampere University Hospital, 33521 Tampere, Finland.
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Popp A, Mäki M. Gluten-Induced Extra-Intestinal Manifestations in Potential Celiac Disease-Celiac Trait. Nutrients 2019; 11:nu11020320. [PMID: 30717318 PMCID: PMC6412544 DOI: 10.3390/nu11020320] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 01/28/2019] [Accepted: 01/29/2019] [Indexed: 12/24/2022] Open
Abstract
Celiac disease patients may suffer from a number of extra-intestinal diseases related to long-term gluten ingestion. The diagnosis of celiac disease is based on the presence of a manifest small intestinal mucosal lesion. Individuals with a normal biopsy but an increased risk of developing celiac disease are referred to as potential celiac disease patients. However, these patients are not treated. This review highlights that patients with normal biopsies may suffer from the same extra-intestinal gluten-induced complications before the disease manifests at the intestinal level. We discuss diagnostic markers revealing true potential celiac disease. The evidence-based medical literature shows that these potential patients, who are “excluded” for celiac disease would in fact benefit from gluten-free diets. The question is why wait for an end-stage disease to occur when it can be prevented? We utilize research on dermatitis herpetiformis, which is a model disease in which a gluten-induced entity erupts in the skin irrespective of the state of the small intestinal mucosal morphology. Furthermore, gluten ataxia can be categorized as its own entity. The other extra-intestinal manifestations occurring in celiac disease are also found at the latent disease stage. Consequently, patients with celiac traits should be identified and treated.
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Affiliation(s)
- Alina Popp
- University of Medicine and Pharmacy "Carol Davila" and National Institute for Mother and Child Health "Alessandrescu-Rusescu", Bucharest 020395, Romania.
- Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, 33520 Tampere, Finland.
| | - Markku Mäki
- Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, 33520 Tampere, Finland.
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Affiliation(s)
- François Rodrigues
- Department of Internal Medicine, Tenon Hospital (AP-HP), Paris 75020, France
| | - Claude Bachmeyer
- Department of Internal Medicine, Tenon Hospital (AP-HP), Paris 75020, France.
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12
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Laurikka P, Nurminen S, Kivelä L, Kurppa K. Extraintestinal Manifestations of Celiac Disease: Early Detection for Better Long-Term Outcomes. Nutrients 2018; 10:E1015. [PMID: 30081502 PMCID: PMC6115849 DOI: 10.3390/nu10081015] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Revised: 07/25/2018] [Accepted: 07/31/2018] [Indexed: 12/11/2022] Open
Abstract
Population-based screening studies have shown celiac disease to be one of the most common chronic gastrointestinal diseases. Nevertheless, because of the diverse clinical presentation, the great majority of patients remain unrecognized. Particularly difficult to identify are the multifaceted extraintestinal symptoms that may appear at variable ages. Although the pathogenesis and long-term outcome of these manifestations are still poorly established, there is some evidence that unrecognized celiac disease predisposes to severe complications if not diagnosed and prevented with an early-initiated gluten-free diet. Therefore, it is of utmost importance that physicians of different disciplines learn to recognize celiac disease in individuals with non-gastrointestinal symptoms. In the future, more studies are needed to clarify the factors affecting development and prognosis of the extraintestinal manifestations.
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Affiliation(s)
- Pilvi Laurikka
- Celiac Disease Research Center, Faculty of Medicine and Life Sciences, University of Tampere, 33014 Tampere, Finland.
- Department of Internal Medicine, Hospital District of South Ostrobothnia, 60200 Seinäjoki, Finland.
| | - Samuli Nurminen
- Tampere Center for Child Health Research, Tampere University Hospital and University of Tampere, 33014 Tampere, Finland.
| | - Laura Kivelä
- Tampere Center for Child Health Research, Tampere University Hospital and University of Tampere, 33014 Tampere, Finland.
| | - Kalle Kurppa
- Tampere Center for Child Health Research, Tampere University Hospital and University of Tampere, 33014 Tampere, Finland.
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Dermatitis Herpetiformis: A Common Extraintestinal Manifestation of Coeliac Disease. Nutrients 2018; 10:nu10050602. [PMID: 29757210 PMCID: PMC5986482 DOI: 10.3390/nu10050602] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 05/04/2018] [Accepted: 05/09/2018] [Indexed: 12/20/2022] Open
Abstract
Dermatitis herpetiformis (DH) is a common extraintestinal manifestation of coeliac disease presenting with itchy papules and vesicles on the elbows, knees, and buttocks. Overt gastrointestinal symptoms are rare. Diagnosis of DH is easily confirmed by immunofluorescence biopsy showing pathognomonic granular immunoglobulin A (IgA) deposits in the papillary dermis. A valid hypothesis for the immunopathogenesis of DH is that it starts from latent or manifest coeliac disease in the gut and evolves into an immune complex deposition of high avidity IgA epidermal transglutaminase (TG3) antibodies, together with the TG3 enzyme, in the papillary dermis. The mean age at DH diagnosis has increased significantly in recent decades and presently is 40⁻50 years. The DH to coeliac disease prevalence ratio is 1:8 in Finland and the United Kingdom (U.K.). The annual DH incidence rate, currently 2.7 per 100,000 in Finland and 0.8 per 100,000 in the U.K., is decreasing, whereas the reverse is true for coeliac disease. The long-term prognosis of DH patients on a gluten-free diet is excellent, with the mortality rate being even lower than for the general population.
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Coeliac disease in children with type 1 diabetes. THE LANCET CHILD & ADOLESCENT HEALTH 2018; 2:133-143. [DOI: 10.1016/s2352-4642(17)30172-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Revised: 10/13/2017] [Accepted: 10/27/2017] [Indexed: 12/17/2022]
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The Decreasing Prevalence of Severe Villous Atrophy in Dermatitis Herpetiformis: A 45-Year Experience in 393 Patients. J Clin Gastroenterol 2017; 51:235-239. [PMID: 27136959 DOI: 10.1097/mcg.0000000000000533] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
GOALS We analyzed from our prospectively collected series of patients with dermatitis herpetiformis (DH) whether small-bowel histologic findings are changing and how serum tissue transglutaminase (TG2) IgA antibodies correlate to mucosal damage. BACKGROUND DH is an extraintestinal manifestation of celiac disease presenting with itchy blistering rash and pathognomonic IgA deposits in the skin. Prominent gastrointestinal symptoms are rare, and small-bowel findings range from severe villous atrophy (SVA) and partial villous atrophy (PVA) to normal mucosa with inflammatory changes. METHODS The cohort included 393 patients (214 male and 179 female) with DH having small-bowel biopsies performed at Tampere University Hospital since 1970. The small-bowel findings were calculated in the three 15-year periods, and in the last period they were correlated with serum IgA class TG2 antibody levels measured by enzyme-linked immunosorbent assay. RESULTS The prevalence of SVA decreased significantly (P=0.032), from 42% in the first study period to 29% in the last study period. A concomitant increase was seen in PVA, from 33% to 41%, and normal villous architecture, from 25% to 30%. The patients with SVA (P<0.001) and PVA (P=0.046) had significantly higher TG2 antibody levels than those with normal villous architecture. CONCLUSIONS This long-term study in patients with DH disclosed a significant decrease in the occurrence of SVA. Serum IgA TG2 antibody levels correlated to damage in the small bowel. The trend toward milder small-bowel histology in DH suggests that a similar pattern could occur in the pool of undiagnosed celiac disease from which DH develops.
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Collin P, Salmi TT, Hervonen K, Kaukinen K, Reunala T. Dermatitis herpetiformis: a cutaneous manifestation of coeliac disease. Ann Med 2017; 49:23-31. [PMID: 27499257 DOI: 10.1080/07853890.2016.1222450] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Dermatitis herpetiformis (DH) is an itchy blistering skin disease with predilection sites on elbows, knees, and buttocks. Diagnosis is confirmed by showing granular immunoglobulin A deposits in perilesional skin. DH is one manifestation of coeliac disease; the skin symptoms heal with gluten free diet (GFD) and relapse on gluten challenge. Of the first-degree relatives, 5% may be affected by either condition. Tissue transglutaminase (TG2) is the autoantigen in coeliac disease and epidermal transglutaminase (TG3) in DH. Both diseases conditions exhibit TG2-specific autoantibodies in serum and small bowel mucosa; patients with DH have IgA-TG3 in the skin. There are some divergencies between these two phenotypes. One-fourth of DH patients do not have small bowel mucosal villous atrophy, but virtually all have coeliac-type inflammatory changes. The skin symptoms respond slowly to GFD. The incidence of coeliac disease is increasing, whereas the opposite is true for DH. A female predominance is evident in coeliac disease, while DH may be more common in males. Coeliac disease carries the risk of small intestinal T-cell lymphoma; in DH B-cell lymphomas at any site may prevail. Adult coeliac disease carries a slightly increased elevated mortality risk, whereas in DH, the relative mortality rate is significantly decreased. Key messages Dermatitis herpetiformis is a cutaneous manifestation of coeliac disease; both conditions are genetically determined and gluten-dependent. Gastrointestinal symptoms and the degree of villous atrophy are less obvious in dermatitis herpetiformis than in coeliac disease. Both show tissue transglutaminase (TG2) specific autoantibodies in serum and small bowel mucosa. In addition, TG3-targeted IgA antibodies are found in the skin of DH patients Both conditions carry an increased elevated risk of lymphoma, in coeliac disease small intestinal T-cell lymphoma, in dermatitis herpetiformis mainly B-cell lymphoma at various sites. Coeliac disease is currently eight times more common that DH; the incidence of DH is decreasing in contrast to that of coeliac disease, where it is increasing.
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Affiliation(s)
- Pekka Collin
- a Department of Gastroenterology and Alimentary Tract Surgery , Tampere University Hospital , Tampere , Finland
| | - Teea T Salmi
- b Department of Dermatology , Tampere University Hospital , Tampere , Finland.,c School of Medicine , University of Tampere , Tampere , Finland
| | - Kaisa Hervonen
- b Department of Dermatology , Tampere University Hospital , Tampere , Finland.,c School of Medicine , University of Tampere , Tampere , Finland
| | - Katri Kaukinen
- c School of Medicine , University of Tampere , Tampere , Finland.,d Department of Internal Medicine , Tampere University Hospital , Tampere , Finland
| | - Timo Reunala
- b Department of Dermatology , Tampere University Hospital , Tampere , Finland.,c School of Medicine , University of Tampere , Tampere , Finland
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Serum transglutaminase 3 antibodies correlate with age at celiac disease diagnosis. Dig Liver Dis 2016; 48:632-7. [PMID: 27026081 DOI: 10.1016/j.dld.2016.03.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 02/29/2016] [Accepted: 03/02/2016] [Indexed: 12/11/2022]
Abstract
BACKGROUND Transglutaminase (TG)2 is the autoantigen in celiac disease, but also TG3 antibodies have been detected in the serum of celiac disease patients. AIMS To investigate the correlations between serum TG3 antibodies and clinical and histological manifestations of celiac disease and to assess gluten-dependency of TG3 antibodies. METHODS Correlations between serum TG3 antibody levels measured from 119 adults and children with untreated coeliac disease and the demographic data, clinical symptoms, celiac antibodies, histological data and results of laboratory tests and bone mineral densities were tested. TG3 antibodies were reinvestigated in 97 celiac disease patients after 12 months on a gluten-free diet (GFD). RESULTS TG3 antibody titers were shown to correlate with the age at celiac disease diagnosis. Further, negative correlation with TG3 antibodies and intestinal γδ+ cells at diagnosis and on GFD was detected. Correlations were not detected with the clinical manifestation of celiac disease, TG2 or endomysial autoantibodies, laboratory values, severity of mucosal villous atrophy, associated diseases or complications. TG3 antibody titers decreased on GFD in 56% of the TG3 antibody positive patients. CONCLUSION Serum TG3 antibody positivity in celiac disease increases as the diagnostic age rises. TG3 antibodies did not show similar gluten-dependency as TG2 antibodies.
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Clarindo MV, Possebon AT, Soligo EM, Uyeda H, Ruaro RT, Empinotti JC. Dermatitis herpetiformis: pathophysiology, clinical presentation, diagnosis and treatment. An Bras Dermatol 2015; 89:865-75; quiz 876-7. [PMID: 25387490 PMCID: PMC4230654 DOI: 10.1590/abd1806-4841.20142966] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2013] [Accepted: 08/07/2013] [Indexed: 02/06/2023] Open
Abstract
Researches on DH have shown that it is not just a bullous skin disease, but a
cutaneous-intestinal disorder caused by hypersensitivity to gluten. Exposure to
gluten is the starting point of an inflammatory cascade capable of forming
autoantibodies that are brought to the skin, where they are deposited, culminating in
the formation of skin lesions. These lesions are vesico-bullous, pruritic, and
localized especially on elbows, knees and buttocks, although atypical presentations
can occur. Immunofluorescence of perilesional area is considered the gold standard
for diagnosis, but serological tests help in cases where it is negative. Patients who
follow glutenfree diets have better control of symptoms on the skin and intestine, as
well as lower risks of progression to lymphoma. Dapsone remains the main drug for
treatment, but it requires monitoring of possible side effects, some potentially
lethal.
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Salmi TT, Hervonen K, Kurppa K, Collin P, Kaukinen K, Reunala T. Celiac disease evolving into dermatitis herpetiformis in patients adhering to normal or gluten-free diet. Scand J Gastroenterol 2015; 50:387-92. [PMID: 25639558 DOI: 10.3109/00365521.2014.974204] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVE Dermatitis herpetiformis (DH) is a cutaneous form of celiac disease affecting ∼ 17% of celiac disease patients. The aim was to determine how often celiac disease precedes the development of DH, and what is the impact of gluten-free diet (GFD) in this phenotype change. MATERIAL AND METHODS Our prospectively collected DH series from 1970 comprised 514 patients. We analyzed all DH patients who at least 2 years earlier had been diagnosed with celiac disease. DH diagnosis was confirmed by showing immunoglobulin A deposits in dermis. Serological and small bowel mucosal findings were analyzed, and the strictness of GFD treatment before and after the diagnosis of DH was evaluated. RESULTS Twenty (4%) DH patients had a prior diagnosis of celiac disease. The median time interval between celiac disease and DH detection was 9.5 years. Before DH appeared 4 patients had been on a normal gluten-containing diet, 10 had dietary lapses on a GFD, and 6 were on a strict GFD. Celiac autoantibodies were positive in 7 out of 19 patients, and 5 out of 7 undergoing small bowel biopsy had partial villous atrophy. Following DH diagnosis the rash was controlled after a median of 6 months on a strict GFD. CONCLUSIONS Patients with celiac disease may develop DH by time. This is most often an indicator of poor adherence to GFD, and a rigorous dietary intervention is necessary. In the majority of cases, DH will be detected without prior celiac disease diagnosis, but the physicians should recognize this phenotype alteration.
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Affiliation(s)
- Teea T Salmi
- Department of Dermatology, Tampere University Hospital , Tampere , Finland
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Barakauskas VE, Lam GY, Estey MP. Digesting all the options: Laboratory testing for celiac disease. Crit Rev Clin Lab Sci 2014; 51:358-78. [DOI: 10.3109/10408363.2014.958813] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Hervonen K, Salmi TT, Kurppa K, Kaukinen K, Collin P, Reunala T. Dermatitis herpetiformis in children: a long-term follow-up study. Br J Dermatol 2014; 171:1242-3. [PMID: 24720674 DOI: 10.1111/bjd.13047] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- K Hervonen
- Department of Dermatology and, Tampere University Hospital, PO Box 2000, 33521, Tampere, Finland; School of Medicine and, University of Tampere, Tampere, Finland
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Ingen-Housz-Oro S, Amiot A, Ortonne N, Hüe S. [Dermatitis herpetiformis antibodies: What the dermatologist must know]. Ann Dermatol Venereol 2014; 141:387-91. [PMID: 24835656 DOI: 10.1016/j.annder.2014.03.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 02/26/2014] [Accepted: 03/05/2014] [Indexed: 01/16/2023]
Affiliation(s)
- S Ingen-Housz-Oro
- Service de dermatologie, CHU Henri-Mondor, AP-HP, 51, avenue du Maréchal-de-Lattre-de-Tassigny, 94000 Créteil, France.
| | - A Amiot
- Service de gastro-entérologie, CHU Henri-Mondor, AP-HP, 51, avenue du Maréchal-de-Lattre-de-Tassigny, 94000 Créteil, France; Université Paris-Est-Créteil (UPEC) Val-de-Marne, 61, avenue du Général-de-Gaulle, 94010 Créteil, France
| | - N Ortonne
- Université Paris-Est-Créteil (UPEC) Val-de-Marne, 61, avenue du Général-de-Gaulle, 94010 Créteil, France; Service d'anatomie pathologique, CHU Henri-Mondor, AP-HP, 51, avenue du Maréchal-de-Lattre-de-Tassigny, 94000 Créteil, France
| | - S Hüe
- Université Paris-Est-Créteil (UPEC) Val-de-Marne, 61, avenue du Général-de-Gaulle, 94010 Créteil, France; Service d'immunologie biologique, équipe 16, U955, IMRB, CHU Henri-Mondor, AP-HP, 51, avenue du Maréchal-de-Lattre-de-Tassigny, 94000 Créteil, France
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The duodenal microbiota composition of adult celiac disease patients is associated with the clinical manifestation of the disease. Inflamm Bowel Dis 2013; 19:934-41. [PMID: 23478804 DOI: 10.1097/mib.0b013e31828029a9] [Citation(s) in RCA: 123] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Celiac disease is classically manifested in the gastrointestinal (GI) tract but extraintestinal symptoms, such as dermatitis herpetiformis (DH), are also common. Besides several well-known shared genetic risk factors and an environmental trigger, gliadin, factors determining the clinical outcome of the disease are not known. In this study, the role of duodenal microbiota in the celiac disease outcome was studied by analyzing mucosa-associated microbiota in celiac disease patients with a variety of intestinal and extraintestinal symptoms. METHODS Microbiota in duodenal biopsy samples obtained from 33 patients with celiac disease with GI, DH, anemia, or mixed symptoms, as well as screen-detected asymptomatic celiac disease and 18 control subjects were analyzed using PCR denaturing gradient gel electrophoresis and a subset of samples additionally by the 16S ribosomal RNA gene sequencing. RESULTS The composition and diversity of mucosal microbiota was associated with the manifestation of celiac disease when analyzed using PCR denaturing gradient gel electrophoresis and the 16S ribosomal RNA gene sequencing. The patients with celiac disease with GI symptoms or anemia had lower microbial diversity than those with DH. Moreover, the patients with GI symptoms had different intestinal microbiota composition and structure, dominated by Proteobacteria, in comparison to those with DH or control subjects (patients with dyspepsia). The relatively similar intestinal microbiota composition in the control subjects and those with DH was characterized by the high abundance of Firmicutes. CONCLUSIONS The two common outcomes of celiac disease, classical GI and extraintestinal manifestations, had marked differences on the diversity and composition of intestinal microbiota. This association suggested that intestinal microbiota may have a role in the manifestation of the disease.
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Hogenson TL. Epigenetics as the Underlying Mechanism for Monozygotic Twin Discordance. ACTA ACUST UNITED AC 2013. [DOI: 10.1159/000353688] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Dermatitis herpetiformis: from the genetics to the development of skin lesions. Clin Dev Immunol 2012; 2012:239691. [PMID: 22778763 PMCID: PMC3386601 DOI: 10.1155/2012/239691] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2012] [Accepted: 04/11/2012] [Indexed: 01/26/2023]
Abstract
Dermatitis herpetiformis (DH) is a rare autoimmune disease linked to gluten sensitivity with a chronic-relapsing course. It is currently considered to be the specific cutaneous manifestation of celiac disease (CD). Both conditions are mediated by the IgA class of autoantibodies, and the diagnosis of DH is dependent on the detection of granular deposits of IgA in the skin. There is an underlying genetic predisposition to the development of DH, but environmental factors are also important. This paper describes these different factors and discusses the known mechanism that lead to the development of skin lesions.
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Chronic gastritis in dermatitis herpetiformis: a controlled study. Clin Dev Immunol 2012; 2012:640630. [PMID: 22611420 PMCID: PMC3351085 DOI: 10.1155/2012/640630] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2012] [Accepted: 02/27/2012] [Indexed: 12/13/2022]
Abstract
Background and Objective. Previous small studies suggest that chronic atrophic gastritis is common in dermatitis herpetiformis (DH). We here examined the frequency and topography of chronic gastritis in 93 untreated DH subjects and in 186 controls with dyspepsia. Methods. Specimens were drawn from the gastric corpus and antrum and examined for atrophy, intestinal metaplasia, and Helicobacter pylori. Duodenal biopsies were taken. Results. Atrophic corpus gastritis was more frequent in DH than in controls (16.0% and 2.7%, resp., P < 0.001); atrophy in the antrum was rare in both groups (3.2% and 1.1%, P = 0.34). Intestinal metaplasia was present in 13 (14.0%) DH and 12 (6.5%) control patients (P = 0.038) and H. pylori in 17 (18.3%) and 17 (9.3%) (P = 0.028), respectively. Small-bowel villous atrophy was seen in 76% of the DH patients, equally in patients with and without chronic gastritis. One DH patient with atrophic gastritis developed gastric cancer. Conclusion. In DH, chronic atrophic gastritis was common in the corpus, but not in the antrum. H. pylori will partly explain this, but corpus atrophy is suggestive of an autoimmune etiology. Atrophic gastritis may increase the risk of gastric cancer. We advocate performing upper endoscopy with sufficient histologic samples in DH.
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Bogdanos DP, Smyk DS, Rigopoulou EI, Mytilinaiou MG, Heneghan MA, Selmi C, Gershwin ME. Twin studies in autoimmune disease: genetics, gender and environment. J Autoimmun 2011; 38:J156-69. [PMID: 22177232 DOI: 10.1016/j.jaut.2011.11.003] [Citation(s) in RCA: 194] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2011] [Accepted: 11/12/2011] [Indexed: 02/08/2023]
Abstract
Twin studies are powerful tools to discriminate whether a complex disease is due to genetic or environmental factors. High concordance rates among monozygotic (MZ) twins support genetic factors being predominantly involved, whilst low rates are suggestive of environmental factors. Twin studies have often been utilised in the study of systemic and organ specific autoimmune diseases. As an example, type I diabetes mellitus has been investigated to establish that that disease is largely affected by genetic factors, compared to rheumatoid arthritis or scleroderma, which have a weaker genetic association. However, large twin studies are scarce or virtually non-existent in other autoimmune diseases which have been limited to few sets of twins and individual case reports. In addition to the study of the genetic and environmental contributions to disease, it is likely that twin studies will also provide data in regards to the clinical course of disease, as well as risk for development in related individuals. More importantly, genome-wide association studies have thus far reported genomic variants that only account for a minority of autoimmunity cases, and cannot explain disease discordance in MZ twins. Future research is therefore encouraged not only in the analysis of twins with autoimmune disease, but also in regards to epigenetic factors or rare variants that may be discovered with next-generation sequencing. This review will examine the literature surrounding twin studies in autoimmune disease including discussions of genetics and gender.
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Affiliation(s)
- Dimitrios P Bogdanos
- Institute of Liver Studies, Liver Immunopathology, King's College London School of Medicine at King's College Hospital, London, UK.
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Bolotin D, Petronic-Rosic V. Dermatitis herpetiformis. Part I. Epidemiology, pathogenesis, and clinical presentation. J Am Acad Dermatol 2011; 64:1017-24; quiz 1025-6. [PMID: 21571167 DOI: 10.1016/j.jaad.2010.09.777] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2010] [Revised: 09/12/2010] [Accepted: 09/18/2010] [Indexed: 02/07/2023]
Abstract
Dermatitis herpetiformis (DH) is an autoimmune disease that is linked to gluten sensitivity and has a clear relationship to celiac disease. Both conditions are mediated by the IgA class of autoantibodies and the diagnosis of DH is dependent on detection of granular deposits of IgA in the skin. There is an underlying genetic predisposition to the development of DH but environmental factors are also important. Typically, young adults present with excoriations only, as the severe pruritus effectively destroys any primary lesions. Based upon our experience with DH and a comprehensive literature review, we provide an update of DH epidemiology, pathophysiology, and clinical presentation.
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Affiliation(s)
- Diana Bolotin
- Section of Dermatology, The University of Chicago, Chicago, Illinois 60637, USA.
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Salmi T, Hervonen K, Kautiainen H, Collin P, Reunala T. Prevalence and incidence of dermatitis herpetiformis: a 40-year prospective study from Finland. Br J Dermatol 2011; 165:354-9. [DOI: 10.1111/j.1365-2133.2011.10385.x] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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[Dermatitis herpetiformis: a review]. Ann Dermatol Venereol 2011; 138:221-7. [PMID: 21397152 DOI: 10.1016/j.annder.2011.01.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2010] [Accepted: 01/06/2011] [Indexed: 01/08/2023]
Abstract
BACKGROUND Dermatitis herpetiformis (DH) is a rare auto-immune bullous disease characterized by its almost constant association to gluten sensitivity. OBJECTIVE Review of literature about epidemiology, physiopathology, clinical data and treatment of DH. METHODS Research on Medline and Embase database without any time limit until April 2010. Because of the lack of randomized therapeutic trials in DH, retrospective series and case reports have been analyzed. RESULTS DH is related to auto-antibodies against epidermal transglutaminase, which belongs to the same family as tissue transglutaminase, the auto-antigen of celiac disease. Physiopathology is complex, occurring in HLA DQ2 or DQ8 predisposed patients, and implies gluten, immunological reaction in the intestinal wall then in the skin. DH and celiac disease may be encountered in the same family. DH is characterized by a very pruritic microvesicular eruption typically located on elbows, knees and buttocks. Digestive manifestations of celiac disease occur in 15% of cases. Direct immunofluorescence is necessary to confirm the diagnosis, showing granular IgA±C3 deposits in the papillary dermis. Circulating IgA and IgG antiendomysium and antitransglutaminase antibodies are detected in almost all patients at the acute phase and follow the clinical course of the disease. Gastro-intestinal endoscopy with multiple duodenal biopsies shows partial or complete villous atrophy in two thirds of cases, intraepithelial lymphocyte infiltrate in the other cases. Other auto-immune diseases may be associated in 10-20% of cases. The main long-term risk is the occurrence of T or B nodal or intestinal tract lymphoma in 2% of cases (relative risk close to 6 in several studies, but not admitted by all authors), especially if adherence to gluten-free diet is not strict. Treatment is based on dapsone, which is quickly efficient on cutaneous manifestations, but not on the digestive involvement and on strict and definitive gluten-free diet, which cures villous atrophy and reduces the risk of lymphoma. CONCLUSION DH is associated to a gluten enteropathy and its physiopathology is better known. Even if the risk of secondary lymphoma seems little, most of the authors recommend a definitive gluten-free diet.
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Roujon P, Guidicelli G, Moreau JF, Taupin JL. [Immunogenetics of celiac disease]. PATHOLOGIE-BIOLOGIE 2011; 61:e5-11. [PMID: 21616607 DOI: 10.1016/j.patbio.2011.03.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2011] [Accepted: 03/23/2011] [Indexed: 01/31/2023]
Abstract
Celiac disease is an auto-immune enteropathy involving genetic factors. It is associated in almost all the patients, to specific susceptibility alleles encoding histocompatibility antigens (HLA for human leucocyte antigen), specifically certain variants of the HLA-DQ2, and the HLA-DQ8 HLA class II molecules. Its estimated prevalence is 1% in the european and north-american populations. However, although these alleles represent the main genetic factor for this disease, they do not explain it on their own, as they are expressed by up to 30% of the population. Recent immunological advances allowed identifying the immunodominant epitopes of gluten, to establish the role of tissue transglutaminase in the disease and to define at the atomic level the presentation of these antigens by the HLA-DQ molecule. It is noteworthy that the HLA susceptibility alleles only account for 40% of the whole genetic risk, and the challenge is now to explain the remaining 60%. Genome-wide association studies using the DNA arrays technology to screen single nucleotide polymorphisms to pinpoint candidate regions and genes, have started to provide answers, but contradictory results sometimes still persist. Most of the genes emerging as statistically significantly associated with celiac disease are involved in the immune response, and suggest that the situation is complex.
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Affiliation(s)
- P Roujon
- Laboratoire d'immunologie et d'immunogénétique, hôpital Pellegrin, CHU de Bordeaux, place Amélie-Raba-Léon,33076 Bordeaux cedex, France
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Lioger B, Machet MC, Machet L. [Dermatitis herpetiformis]. Presse Med 2010; 39:1042-8. [PMID: 20832975 DOI: 10.1016/j.lpm.2010.07.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2010] [Revised: 06/25/2010] [Accepted: 07/06/2010] [Indexed: 01/14/2023] Open
Abstract
Dermatitis herpetiformis is a subepidermal autoimmune acquired blistering skin disorder that is associated with intestinal gluten sensitivity. The multifactorial pathogenesis associated genetic background with Major histocompatibility complex II molecules (HLA-DQ2 and HLA-DQ8), its absence has a great negative predictive value and environmental factor with gluten consumption. There is also an increased incidence of autoimmune disorders. Skin lesions are small vesicles and/or bullae, with pruritus, located at the extensor surface of the elbows, proximal forearms and the buttocks. Gastrointestinal manifestations are rare. The biopsies from uninvolved skin establish the diagnostic with a deposition of IgA in the dermal papillae for direct immunofluorescence and in a representative lesion classically neutrophil micro-abcesses within the papillary dermis. The differential diagnosis is clinical with other causes of pruritus and histological with the linear IgA bullous dermatosis. Usually the treatment begin with dapsone for symptomatic skin lesions, it can be considered like a therapeutic test. A gluten-free diet is the treatment of choice and reduce the risk of lymphoma, the major complication.
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Affiliation(s)
- Bertrand Lioger
- CHRU de Tours, service de dermatologie, 37044 Tours cedex, France.
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Abstract
Celiac sprue (CS) is a gluten-sensitive enteropathy with many autoimmune features. CS involves multiple organs through immune and nonimmune processes, and is frequently associated with other autoimmune disorders. This article reviews the co-occurrence of CS with autoimmune disorders of the cutaneous, nervous, endocrine, musculoskeletal, gastrointestinal and cardiovascular systems. The types of autoimmune disorders associated with CS and the prevalence of CS in other autoimmune disorders are also discussed. A brief review of the literature on the potential mechanisms behind these associations and the therapeutic effects of a gluten-free diet for autoimmune comorbidities in CS is also provided.
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Affiliation(s)
- Shadi Rashtak
- Division of Medicine, Department of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Eric V Marietta
- Division of Medicine, Department of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
- Department of Dermatology, Mayo Clinic, Rochester, MN, USA
- Department of Immunology, Mayo Clinic, Rochester, MN, USA
| | - Joseph A Murray
- Department of Medicine, Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine, 200 First Street, SW, Rochester, MN 55905, USA, Tel.: +1 507 284 2631, Fax: +1 507 266 9081,
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Kantele JM, Savilahti E, Westerholm-Ormio M, Pakkanen S, Arvilommi HS, Reunala T, Kantele AM. Decreased numbers of circulating plasmablasts and differences in IgA1-plasmablast homing to skin in coeliac disease and dermatitis herpetiformis. Clin Exp Immunol 2009; 156:535-41. [PMID: 19438608 DOI: 10.1111/j.1365-2249.2009.03922.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] Open
Abstract
The two clinical phenotypes of gluten enteropathy, coeliac disease (CD) and dermatitis herpetiformis (DH), were characterized for numbers and homing profiles of circulating final effector B cells, plasmablasts, identified as immunoglobulin (Ig)-secreting cells (ISC). In CD, the numbers of ISC were approximately 50% lower than in DH or controls. ISC expressed peripheral lymph node homing receptor (HR), L-selectin, less frequently in CD (54%) and DH (52%) patients than in controls (70%). The expression of gut mucosal HR, alpha(4)beta(7), was less frequent in CD (42%) than in DH (65%) or controls (60%). In DH, but not in CD or controls, a higher proportion of IgA1-ISC (40%) than IgA2-ISC (25%) expressed the skin HR, cutaneous lymphocyte-associated antigen. In gluten enteropathy circulating plasmablasts are more mature, but decreased in number, and have distorted homing profiles. Differential IgA1-plasmablast homing could be associated with the development of skin rash with IgA1-deposits in DH but not in CD.
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Affiliation(s)
- J M Kantele
- Department of Medical Microbiology and Immunology, University of Turku, Turku, Finland
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Doffoel-Hantz V, Cogné M, Sparsa A, Bonnetblanc JM, Drouet M, Bédane C. Physiopathologie de la dermatite herpétiforme. Données actuelles. Ann Dermatol Venereol 2008; 135:784-8; quiz 783. [DOI: 10.1016/j.annder.2008.02.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2008] [Accepted: 02/29/2008] [Indexed: 12/30/2022]
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Increased frequency of Ig heavy-chain HS1,2-A enhancer *2 allele in dermatitis herpetiformis, plaque psoriasis, and psoriatic arthritis. J Invest Dermatol 2008; 128:1920-4. [PMID: 18323783 DOI: 10.1038/jid.2008.40] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The enhancer DNase-hypersensitive region 1,2 (HS1,2), a member of the Ig heavy-chain 3' regulatory region (3'RR) cluster, is active in human B cells transfected with reporter genes and in mouse is activated in late maturation. HS1,2-A contains binding sites for several transcription factors. There are four known alleles, that is, (*)1, (*)2, (*)3, and (*)4, which differ in their lengths in transcription factor binding. We showed that in celiac disease the frequency of the (*)2 allele is increased. Both dermatitis herpetiformis (DH) and psoriasis can be associated with different frequencies with celiac disease. Thus, we further investigate the frequency of allele (*)2 in DH, plaque psoriatic, and psoriatic arthritis patients. HS1,2-A allele frequencies were investigated in 37 DH, 61 plaque psoriatic, 28 psoriatic arthritis patients, and 265 healthy donors, age- and sex-matched, from the same geographical area. The frequency of the (*)2 allele changes from 0.39 in controls to 0.63 in DH, 0.59 in plaque psoriasis and 0.75 in psoriatic arthritis (P between 10(-4)-10(-5)). Our data evidence an increased frequency of the (*)2 allele of HS1,2-A in these cutaneous immune-related disorders. We suggest a related genetic predisposition in these pathogeneses.
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Adamovic S, Amundsen SS, Lie BA, Hellqvist A, Gudjónsdóttir AH, Ek J, Nilsson S, Wahlström J, Ascher H, Sollid LM, Naluai AT. Fine mapping study in Scandinavian families suggests association between coeliac disease and haplotypes in chromosome region 5q32. TISSUE ANTIGENS 2007; 71:27-34. [PMID: 17971050 DOI: 10.1111/j.1399-0039.2007.00955.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
The previous genome-wide scan in Scandinavian families supported earlier evidence for linkage of a region on chromosome 5 (5q31-33) to coeliac disease. This study deals with further genetic mapping of an 18 cM region, spanning from marker GAh18A (131.87 Mb) to D5S640 (149.96 Mb). Linkage and association analyses were performed in a two-step approach. First, seven microsatellites were added. Strong evidence for linkage was obtained with a Zlr score of 3.96, P(nc) = 4 x 10(-5) at marker D5S436. The strongest association was with a haplotype consisting of the markers D5S2033 and D5S2490 (P(nc) < 0.001). In the second step, we added 17 microsatellites and 69 single nucleotide polymorphisms (SNPs) to the analysis. These markers were located close to or within candidate genes across the region of approximately 7 Mb beneath the linkage peak marked by D5S2017 and D5S812. A substantial increase of the linkage signal with a maximum Zlr score of 4.6 at marker rs1972644 (P(nc) = 2 x 10(-6)) was obtained and several SNPs showed association. Seven SNPs that individually showed the strongest association were genotyped in a second independent family sample set (225 trios). In the trio family sample as well as in the multiplex family sample, the strongest association was found with SNPs within the region flanked by the associated microsatellites D5S2033 and D5S2490 at 5q32.
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Affiliation(s)
- S Adamovic
- Department of Medical and Clinical Genetics, Institute of Biomedicine, Sahlgrenska Academy, Göteborg University, Göteborg, Sweden
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Collin P, Huhtala H, Virta L, Kekkonen L, Reunala T. Diagnosis of celiac disease in clinical practice: physician's alertness to the condition essential. J Clin Gastroenterol 2007; 41:152-6. [PMID: 17245213 DOI: 10.1097/01.mcg.0000212618.12455.a8] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
GOALS We have for several years been training health personnel to recognize celiac disease, and have advocated serologic screening in risk groups. The aim was to establish whether this approach would offer an alternative to population screening, which has yielded a prevalence of 1% in Finland. BACKGROUND The number of detected celiac disease cases is much lower than that obtained in serologic screening studies. STUDY Nationwide recommendations for the detection of celiac disease were published in 1998, and training of health personnel took place in 2001 to 2002. The prevalence of celiac disease was calculated from the national registry of patients receiving reimbursement for dietary costs, attested by physician's statement. In 1 of the 10 statements the diagnostic criteria and clinical manifestations were scrutinized. RESULTS The nationwide prevalence of celiac disease was 0.45%; 0.7% in the highest to 0.3% in the lowest area. The annual number of new patients increased from 5/100,000 in the early 1980s to 20/100,000 today. The percentage of patients found in risk groups (relatives of celiac disease patients, patients with extraintestinal symptoms or concomitant autoimmune disorders) was currently 16.3% in the high and 6.6% in the low prevalence area. Seventeen percent of patients had dermatitis herpetiformis, and its incidence was declining. CONCLUSIONS A maximal prevalence of 0.7% of celiac disease was ascertained; educating primary health care staff regarding the protean manifestations of the disease seemed to be the key issue. The increase in incidence implies that a prevalence of 1.0% is possible, rendering population screening unnecessary.
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Affiliation(s)
- Pekka Collin
- Department of Gastroenterology and Alimentary Tract Surgery, Tampere University Hospital, Medical School, Tampere, Finland.
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Heil PM, Volc-Platzer B, Karlhofer F, Gebhart W, Huber WD, Benesch T, Vogelsang H, Stingl G. Transglutaminases as diagnostically relevant autoantigens in patients with gluten sensitivity. Transglutaminasen als diagnostisch relevante Autoantigene bei Patienten mit Glutensensitivitat. J Dtsch Dermatol Ges 2005; 3:974-8. [PMID: 16405713 DOI: 10.1111/j.1610-0387.2005.05762.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Patients with gluten sensitivity, i. e. celiac disease and dermatitis herpetiformis have anti-endomysial antibodies recognizing transglutaminases, which are usually detected on appropriate tissue sections. It would be desirable to have available a reliable, tissue-independent serological diagnostic tool. We compared disease-specificity and sensitivity of tTG versus eTG-based detection systems for the diagnosis of anti-endomysial IgA-antibodies. PATIENTS AND METHODS We examined 204 serum samples in duplicates with commercial human ELISA-kits: 54 healthy blood donors, 20 celiac disease, 29 dermatitis herpetiformis and 101 with other autoimmune dermatoses. RESULTS The tTG-based ELISA proved to be very disease-specific (100 %) and sensitive for the diagnosis of gluten sensitivity (95 % celiac disease; 96.6 % dermatitis herpetiformis). The eTG-based ELISA was also perfectly specific (100 %), but only 15 % of celiac disease-sera and 44.8 % of dermatitis herpetiformis-sera yielded positive results. CONCLUSIONS The human tTG-ELISA fulfills all criteria of a screening test and, because of being investigator-independent, inexpensive and highly reproducible, compares favorably with the current diagnostic gold standard (indirect immunofluorescence and biopsy) of celiac disease and dermatitis herpetiformis. The low sensitivity of the eTG-ELISA may have technical reasons, but could theoretically also be linked to disease activity or indicate the existence of an as yet undefined disease subset. Studies are currently under way to address these issues.
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Affiliation(s)
- Peter Maximilian Heil
- Division of Immunology, Allergy and Infectious Diseases, Department of Dermatology, Medical University of Vienna
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Invernizzi P, Selmi C, Mackay IR, Podda M, Gershwin ME. From bases to basis: linking genetics to causation in primary biliary cirrhosis. Clin Gastroenterol Hepatol 2005; 3:401-10. [PMID: 15880308 DOI: 10.1016/s1542-3565(04)00678-0] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Primary biliary cirrhosis (PBC) is a multifactorial autoimmune disease with inherited and environmental components in pathogenesis. It is exceptional among autoimmune diseases in showing strong heritability according to familial occurrence and monozygotic twins concordance, yet with weak associations with the usual genetic risk elements for autoimmunity, such as the HLA alleles. Among the latter, there is risk (at least in some populations) conferred by HLA DRB1*08 and possibly some protection by DRB1*11. However, the inconsistency among studies on HLA is surprising, given that PBC is a relatively homogenous disease entity. Among non-HLA genes, some studies implicate polymorphisms of genes for cytotoxic T-lymphocyte antigen-4, interleukin-2, or interleukin-10; polymorphisms of the vitamin D receptor could synergize with low sunlight exposure to create deficiency of the immunoregulatory factor, activated vitamin D. A new lead is available from the finding in female subjects with PBC of an increase in the degree of monosomy of the X chromosome that is presumed to carry immune response genes. A further suggested source of inquiry is the apparent protection of African-American women from PBC. Finally, data on inheritance should be sought in PBC by descent methodology, rather than by cross-sectional association studies in cases and control subjects, and based on analysis of a large number of families with an affected member through a worldwide effort.
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Affiliation(s)
- Pietro Invernizzi
- Division of Internal Medicine, Department of Medicine, Surgery and Dentistry, San Paolo School of Medicine, University of Milan, Italy
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Marietta E, Black K, Camilleri M, Krause P, Rogers RS, David C, Pittelkow MR, Murray JA. A new model for dermatitis herpetiformis that uses HLA-DQ8 transgenic NOD mice. J Clin Invest 2004; 114:1090-7. [PMID: 15489956 PMCID: PMC522239 DOI: 10.1172/jci21055] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2004] [Accepted: 08/24/2004] [Indexed: 11/17/2022] Open
Abstract
Dermatitis herpetiformis (DH) is an autoimmune blistering skin disorder that is associated with gluten sensitivity. It presents as a papulovesicular rash and is often associated with enteropathy. The rash resolves when the patient is placed on a gluten-free diet and/or dapsone. DH, as well as celiac disease, is tightly associated with DQ2 and DQ8. A novel mouse model for DH is described that utilizes the NOD background and the HLA-DQ8 transgene. The addition of DQ8 contributes sensitivity to gliadin, and the addition of the NOD background contributes to autoimmunity and pathogenesis. Fifteen NOD DQ8+ mice of 90 that were sensitized to gluten developed blistering pathology similar to that seen in DH. Neutrophil infiltration of the dermis, deposition of IgA at the dermal-epidermal junction, and a complete reversal of the blistering phenomenon with the administration of a gluten-free diet with or without dapsone were observed. None of the 3 blistering mice examined had small-bowel pathology. This animal model of DH will be useful to determine the specificity of the IgA deposits, as well as the pathogenic mechanisms that occur in the skin as a result of gluten ingestion.
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Affiliation(s)
- Eric Marietta
- Department of Immunology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
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Kárpáti S. Dermatitis herpetiformis: close to unravelling a disease. J Dermatol Sci 2004; 34:83-90. [PMID: 15033190 DOI: 10.1016/j.jdermsci.2003.11.004] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2003] [Revised: 11/04/2003] [Accepted: 11/04/2003] [Indexed: 01/01/2023]
Abstract
Dermatitis herpetiformis is characterised by granular IgA precipitates in the papillary dermis. In contrast to other autoimmune blistering diseases, where tissue-deposited and circulating autoantibodies recognise the same target within the skin, in dermatitis herpetiformis a serum IgA reacting with a component of the healthy papillary dermis has not been detected. Recently, the antigenic specificity of pathognomic skin-bound IgA has been clarified: the immune precipitates contain epidermal transglutaminase, an enzyme not previously detected in the papillary region of normal skin. Furthermore, serum IgA in dermatitis herpetiformis has been found to bind epidermal transglutaminase. These findings may relate to the fact, that dermatitis herpetiformis is associated with gluten sensitive enteropathy, coeliac disease, which is characterised by IgA type autoantibodies to a closely related enzyme, tissue transglutaminase. The two transglutaminases are highly homologous, and therefore, cross reactivity of the two antibodies might explain why patients with gluten sensitive enteropathy, with or without skin disease, generally have serum autoantibodies to both enzymes. There is growing evidence that dermatitis herpetiformis should be considered as the skin manifestation of gluten sensitivity developing in those patients with mild coeliac disease, who produce epidermal transglutaminase autoantibodies of high avidity and affinity. Both the skin and the small bowel diseases are gluten dependent and are strongly associated with HLA DQ with no genetic differences to explain the two phenotypes. The question should be asked whether the rash in dermatitis herpetiformis is a classic autoimmune blistering disease or whether it has an immune complex basis, which is the most likely alternative.
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Affiliation(s)
- Sarolta Kárpáti
- Department of Dermatology, Semmelweis University, Maria utca 41, 1085 Budapest, Hungary.
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Marietta E, Black K, Camilleri M, Krause P, Rogers RS, David C, Pittelkow MR, Murray JA. A new model for dermatitis herpetiformis that uses HLA-DQ8 transgenic NOD mice. J Clin Invest 2004. [DOI: 10.1172/jci200421055] [Citation(s) in RCA: 105] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Selmi C, Mayo MJ, Bach N, Ishibashi H, Invernizzi P, Gish RG, Gordon SC, Wright HI, Zweiban B, Podda M, Gershwin ME. Primary biliary cirrhosis in monozygotic and dizygotic twins: genetics, epigenetics, and environment. Gastroenterology 2004; 127:485-92. [PMID: 15300581 DOI: 10.1053/j.gastro.2004.05.005] [Citation(s) in RCA: 378] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND & AIMS There is growing evidence that the interplay of genetic susceptibility and environmental factors leads to primary biliary cirrhosis (PBC). In particular, family members of an infected individual have up to a 100-fold higher risk of developing PBC. Although concordant rates for identical twins in other autoimmune diseases range between 25% and 50%, there are no such data on PBC. Accordingly, we evaluated the concordance of PBC in a genetically defined population of twin sets and evaluated the clinical characteristics between concordant subjects. METHODS We identified 16 pairs of twins within a 1400-family cohort followed up by several centers worldwide, evaluated the diagnosis of PBC in all individuals, and determined the zygosity of sets reported as identical by the analysis of 2 highly variable HLA class II regions and 5 short tandem repeats. RESULTS Eight of 16 sets of twins were monozygotic. In 5 of 8 monozygotic twin sets, both individuals had PBC (pairwise concordance rate, 0.63). Among the dizygotic twins (n = 8), no set was found to be concordant for PBC. Interestingly, the age at onset of disease was similar in 4 of 5 concordant sets of monozygotic pairs; however, there were differences in natural history and disease severity. CONCLUSIONS The concordance rate of PBC in identical twins is among the highest reported in autoimmunity. However, discordant pairs were identified. The data show not only the role of genetics but also emphasize that either epigenetic factors and/or environment play a critical role.
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Affiliation(s)
- Carlo Selmi
- Division of Rheumatology, Allergy, and Clinical Immunology, University of California at Davis, 95616, USA
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Affiliation(s)
- Marie Eleanore O Nicolas
- Department of Dermatology and the Division of Gastroenterology and Hepatology and Internal Medicine, Mayo Clinic, Rochester, MN 55905, USA
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Mustalahti K, Holopainen P, Karell K, Mäki M, Partanen J. Genetic dissection between silent and clinically diagnosed symptomatic forms of coeliac disease in multiplex families. Dig Liver Dis 2002; 34:842-5. [PMID: 12643291 DOI: 10.1016/s1590-8658(02)80253-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND Coeliac disease has a large variation in clinical outcome. In addition to the classical disease with malabsorption, many individuals have a silent form, in which subject symptoms are missing but autoantibodies and mucosa lesions are identical to the symptomatic disease. AIM To investigate whether differences in HLA DR-DQ genes explain the variation in outcome. MATERIALS AND METHODS HLA DQ alleles were determined in 28 multiplex families with sibling pairs in which one had the symptomatic disease but the other had the silent form. RESULTS No differences in the distribution of HLA DR-DQ haplotypes could be observed. The clinically diagnosed coeliac disease seemed to have earlier onset than silent coeliac disease. CONCLUSIONS Results indicate that the major genetic susceptibility locus, HLA DQ, does not determine the exact clinical outcome of coeliac disease.
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Affiliation(s)
- K Mustalahti
- Medical School Paediatric Research Centre, University of Tampere, Finland
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Abstract
Celiac disease is a permanent intolerance to dietary gluten. Its well known features are abdominal symptoms, malabsorption of nutrients, and small-bowel mucosal inflammation with villous atrophy, which recover on a gluten-free diet. Diagnosis is challenging in that patients often suffer from subtle, if any, symptoms. The risk of clinically silent celiac disease is increased in various autoimmune conditions. The endocrinologist, especially, should maintain high suspicion and alertness to celiac disease, which is to be found in 2-5% of patients with insulin-dependent diabetes mellitus or autoimmune thyroid disease. Patients with multiple endocrine disorders, Addison's disease, alopecia, or hypophysitis may also have concomitant celiac disease. Similar heredity and proneness to autoimmune conditions are considered to be explanations for these associations. A gluten-free diet is essential to prevent celiac complications such as anemia, osteoporosis, and infertility. The diet may also be beneficial in the treatment of the underlying endocrinological disease; prolonged gluten exposure may even contribute to the development of autoimmune diseases. The diagnosis of celiac disease requires endoscopic biopsy, but serological screening with antiendomysial and antitissue transglutaminase antibody assays is an easy method for preliminary case finding. Celiac disease will be increasingly detected provided the close association with autoimmune endocrinological diseases is recognized.
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Affiliation(s)
- Pekka Collin
- Department of Medicine, Tampere University Hospital and University of Tampere, 33014 Tampere, Finland.
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Liu J, Juo SH, Holopainen P, Terwilliger J, Tong X, Grunn A, Brito M, Green P, Mustalahti K, Mäki M, Gilliam TC, Partanen J. Genomewide linkage analysis of celiac disease in Finnish families. Am J Hum Genet 2002; 70:51-9. [PMID: 11715113 PMCID: PMC384903 DOI: 10.1086/338453] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2001] [Accepted: 10/26/2001] [Indexed: 11/03/2022] Open
Abstract
Celiac disease (CD), or gluten-sensitive enteropathy, is a common multifactorial disorder resulting from intolerance to cereal prolamins. The only established genetic susceptibility factor is HLA-DQ, which appears to explain only part of the overall genetic risk. We performed a genomewide scan of CD in 60 Finnish families. In addition to strong evidence for linkage to the HLA region at 6p21.3 (Z(max)>5), suggestive evidence for linkage was found for six other chromosomal regions--1p36, 4p15, 5q31, 7q21, 9p21-23, and 16q12. We further analyzed the three most convincing regions--4p15, 5q31, and 7q21--by evaluation of dense marker arrays across each region and by analysis of an additional 38 families. Although multipoint analysis with dense markers provided supportive evidence (multipoint LOD scores 3.25 at 4p15, 1.49 at 5q31, and 1.04 at 7q21) for the initial findings, the additional 38 families did not strengthen evidence for linkage. The role that HLA-DQ plays was studied in more detail by analysis of DQB1 alleles in all 98 families. All but one patient carried one or two HLA-DQ risk alleles, and 65% of HLA-DQ2 carriers were affected. Our study indicates that the HLA region harbors a predominant CD-susceptibility locus in these Finnish families.
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Affiliation(s)
- Jianjun Liu
- Columbia Genome Center and Departments of Psychiatry, Medicine, and Genetics and Development, Columbia University, and New York State Psychiatric Institute, New York; Department of Tissue Typing, Finnish Red Cross Blood Transfusion Service, Helsinki; and Medical School, University of Tampere and Tampere University Hospital, Tampere, Finland
| | - Suh-Hang Juo
- Columbia Genome Center and Departments of Psychiatry, Medicine, and Genetics and Development, Columbia University, and New York State Psychiatric Institute, New York; Department of Tissue Typing, Finnish Red Cross Blood Transfusion Service, Helsinki; and Medical School, University of Tampere and Tampere University Hospital, Tampere, Finland
| | - Päivi Holopainen
- Columbia Genome Center and Departments of Psychiatry, Medicine, and Genetics and Development, Columbia University, and New York State Psychiatric Institute, New York; Department of Tissue Typing, Finnish Red Cross Blood Transfusion Service, Helsinki; and Medical School, University of Tampere and Tampere University Hospital, Tampere, Finland
| | - Joseph Terwilliger
- Columbia Genome Center and Departments of Psychiatry, Medicine, and Genetics and Development, Columbia University, and New York State Psychiatric Institute, New York; Department of Tissue Typing, Finnish Red Cross Blood Transfusion Service, Helsinki; and Medical School, University of Tampere and Tampere University Hospital, Tampere, Finland
| | - Xiaomei Tong
- Columbia Genome Center and Departments of Psychiatry, Medicine, and Genetics and Development, Columbia University, and New York State Psychiatric Institute, New York; Department of Tissue Typing, Finnish Red Cross Blood Transfusion Service, Helsinki; and Medical School, University of Tampere and Tampere University Hospital, Tampere, Finland
| | - Adina Grunn
- Columbia Genome Center and Departments of Psychiatry, Medicine, and Genetics and Development, Columbia University, and New York State Psychiatric Institute, New York; Department of Tissue Typing, Finnish Red Cross Blood Transfusion Service, Helsinki; and Medical School, University of Tampere and Tampere University Hospital, Tampere, Finland
| | - Miguel Brito
- Columbia Genome Center and Departments of Psychiatry, Medicine, and Genetics and Development, Columbia University, and New York State Psychiatric Institute, New York; Department of Tissue Typing, Finnish Red Cross Blood Transfusion Service, Helsinki; and Medical School, University of Tampere and Tampere University Hospital, Tampere, Finland
| | - Peter Green
- Columbia Genome Center and Departments of Psychiatry, Medicine, and Genetics and Development, Columbia University, and New York State Psychiatric Institute, New York; Department of Tissue Typing, Finnish Red Cross Blood Transfusion Service, Helsinki; and Medical School, University of Tampere and Tampere University Hospital, Tampere, Finland
| | - Kirsi Mustalahti
- Columbia Genome Center and Departments of Psychiatry, Medicine, and Genetics and Development, Columbia University, and New York State Psychiatric Institute, New York; Department of Tissue Typing, Finnish Red Cross Blood Transfusion Service, Helsinki; and Medical School, University of Tampere and Tampere University Hospital, Tampere, Finland
| | - Markku Mäki
- Columbia Genome Center and Departments of Psychiatry, Medicine, and Genetics and Development, Columbia University, and New York State Psychiatric Institute, New York; Department of Tissue Typing, Finnish Red Cross Blood Transfusion Service, Helsinki; and Medical School, University of Tampere and Tampere University Hospital, Tampere, Finland
| | - T. Conrad Gilliam
- Columbia Genome Center and Departments of Psychiatry, Medicine, and Genetics and Development, Columbia University, and New York State Psychiatric Institute, New York; Department of Tissue Typing, Finnish Red Cross Blood Transfusion Service, Helsinki; and Medical School, University of Tampere and Tampere University Hospital, Tampere, Finland
| | - Jukka Partanen
- Columbia Genome Center and Departments of Psychiatry, Medicine, and Genetics and Development, Columbia University, and New York State Psychiatric Institute, New York; Department of Tissue Typing, Finnish Red Cross Blood Transfusion Service, Helsinki; and Medical School, University of Tampere and Tampere University Hospital, Tampere, Finland
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