Antibodies in celiac disease: implications beyond diagnostics

Caja, Sergio; Mäki, Markku; Kaukinen, Katri; Lindfors, Katri

doi:10.1038/cmi.2010.65

Cited by 68 publications

(65 citation statements)

References 95 publications

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“…Its role in the tissue homeostasis is variable and associations with pathological conditions such as fibrosis, atherosclerosis, neurodegenerative diseases, autoimmune diseases and cancer metastasis have been documented [2,15,17]. TG2 is also the major autoantigen in human celiac disease, a gluten-generated systemic disorder including the inflammatory encephalopathy [6,8,9,11,12]. In this study, we report the anti-TG2 antibodies in the CSF of canine idiopathic encephalitis.…”

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confidence: 97%

“…For example, anti-aquaporin 4 antibodies in neuromyelitis optica [10], anti-N-methyl D-aspartate receptor (NMDAR) antibodies in NMDAR encephalitis [14], anti-glutamate receptor 3 antibodies in Rasmussen syndrome [20] and anti-transglutaminase (TG) antibodies in CNS celiac disease are currently known disease-specific autoantibodies [6]. In our preliminary study we surveyed these autoantibodies in the canine CSF and found a presence of anti-TG autoantibodies in the canine idiopathic encephalitis.…”

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confidence: 99%

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Transglutaminase 2: A Novel Autoantigen in Canine Idiopathic Central Nervous System Inflammatory Diseases

Tanaka

Inoue

Yamamoto

et al. 2012

The Journal of Veterinary Medical Science

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ABSTRACT. Necrotizing meningoencephalitis (NME), necrotizing leukoencephalitis (NLE) and granulomatous meningoencephalomyelitis (GME) are common idiopathic inflammatory central nervous system (CNS) diseases with unknown etiology in dogs. We previously showed that IgG autoantibodies in the cerebrospinal fluid (CSF) of NME cases reacted to unknown brain proteins as well as to glial fibrillary acidic protein (GFAP). In the present report, we evaluated the autoantibodies against transglutaminase2 (TG2) in the canine CNS diseases. CSF samples obtained from dogs with NME (n=19), NLE (n=7), GME (n=11) and miscellaneous CNS diseases (n=12) were subjected. CSFs from 20 healthy dogs were used as controls. Indirect fluorescent antibody test on the canine cerebrum revealed astrocyte-binding IgG in the CSF of NME. After absorption of the CSF with bovine GFAP, the CSF still possessed the reactivity to astrocytes. Double-color staining showed clear colocalization of the autoantibodies and anti-human TG2 rabbit polyclonal IgG. An immunoblot assay against human recombinant TG2 revealed anti-TG2 IgG in the CSF from dogs with NME, NLE and GME. The CSF of canine idiopathic encephalitis cases, notably of NME, tended to show high ELISA OD values against human recombinant TG2 compared to healthy controls. The presence of anti-TG2 autoantibodies in the CSF may contribute to the elucidation of the etiology of canine NME, NLE and GME.

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confidence: 99%

Transglutaminase 2: A Novel Autoantigen in Canine Idiopathic Central Nervous System Inflammatory Diseases

Tanaka

Inoue

Yamamoto

et al. 2012

The Journal of Veterinary Medical Science

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“…Celiac disease is an example of a quite common intestinal disease that was widely undiagnosed until recent dramatic improvements in immunodiagnostic markers [161][162][163][164]. Celiac disease is a hypersensitivity to the wheat protein gluten.…”

Section: Markers For Autoimmune Diseasementioning

confidence: 99%

Immunodiagnostics and immunosensor design (IUPAC Technical Report)

Gubala

Klein²,

Templeton

et al. 2014

Pure and Applied Chemistry

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This work compiles information on the principles of diagnostic immunochemical methods and the recent advances in this field. It presents an overview of modern techniques for the production of diagnostic antibodies, their modification with the aim of improving their diagnostic potency, the different types of immunochemical detection systems, and the increasing diagnostic applications for human health that include specific disease markers, individualized diagnosis of cancer subtypes, therapeutic and addictive drugs, food residues, and environmental contaminants. A special focus lies in novel developments of immunosensor techniques, promising approaches to miniaturized detection units and the associated microfluidic systems. The trends towards high-throughput systems, multiplexed analysis, and miniaturization of the diagnostic tools are discussed. It is also made evident that progress in the last few years has largely relied on novel chemical approaches.

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“…It is thus advisable to obtain a small-intestine biopsy sample in young children with severe symptoms suggestive of CD, even when their serology is negative. [15] If villous atrophy is found in children who are negative for CDspecific antibodies, then a later gluten challenge procedure followed by biopsy always should be performed to confirm CD as a cause of the enteropathy [8].…”

Section: International Journal Of Celiac Diseasementioning

confidence: 99%

The Usefulness of IgA/IgG DGP/tTG Screen Assay for Celiac Disease Detection among Symptomatic and at Risk Young Children

Belei¹,

Marginean²

2016

IJCD

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Background: It has been postulated that IgA anti tissue-transglutaminase (tTG) and anti-endomisium (EMA) antibodies can be false negative in young children.ESPGHAN recommended for seronegative children younger than 2 years old with clinical suspicion of celiac disease to perform duodenal biopsies. Recent studies sugested that the combined assay for IgA/IgG deamidated gliadin peptides (DGP) and tTG can detect celiac disease among seronegative young children. Aim: To assess if the new combined assay with synthetic gliadin derived peptides IgA/IgG-DGP/tTG is useful to detect celiac disease in IgA tTG or EMA seronegative children younger than 2 years old. Methods: The authors screened a lot of children aged 6 months to 2 years old that associated characteristic symptoms/risk factors for gluten enteropathy. 368 children were tested for IgAtTG, EMA and IgA/IgG-tTG/DGP combined assay. All children had normal total IgA concentration and were consuming gluten at the time of enrolment. Children with at least one positive serologic test underwent intestinal biopsy, including seronegative infants, DQ2/DQ8 positive, with clinical suspicion of celiac disease that underwent the 2 biopsies protocol. Results: Celiac disease was diagnosed in 22 children based on histology. 19 children were positive for IgA tTG, 20 were positive for EMA and 21 tested positive for IgA/IgG-DGP/tTG. IgA tTG sensitivity was 86.3%, IgA EMA sensitivity was 91% and IgA/IgG-DGP/tTG sensitivity was 95.4% (p=0.002). Conclusions: The sensitivity of IgA/IgG DGP/tTG assay was significantly higher than that of IgAtTG in celiac patients younger than 2 years old.The better performance of this new combined test can avoid repeated intestinal biopsies in young children with high clinical suspicion of celiac disease but negative tTG/ EMA serology.

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Antibodies in celiac disease: implications beyond diagnostics

Cited by 68 publications

References 95 publications

Transglutaminase 2: A Novel Autoantigen in Canine Idiopathic Central Nervous System Inflammatory Diseases

Transglutaminase 2: A Novel Autoantigen in Canine Idiopathic Central Nervous System Inflammatory Diseases

Immunodiagnostics and immunosensor design (IUPAC Technical Report)

The Usefulness of IgA/IgG DGP/tTG Screen Assay for Celiac Disease Detection among Symptomatic and at Risk Young Children

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