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Alkhalifah M, AlMezaine H, AlMoallem B. Identification of AIRE pathogenic variants ends diagnostic odyssey for Saudi child with infantile-onset keratoconjunctivitis as an early sign of autoimmune polyglandular syndrome type1; a case report. Ophthalmic Genet 2024; 45:59-62. [PMID: 37017251 DOI: 10.1080/13816810.2023.2196565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 03/23/2023] [Indexed: 04/06/2023]
Abstract
PURPOSE Chronic keratoconjunctivitis is a rare presentation of autoimmune polyglandular syndrome type 1 (APS-1) during the first year of life. Herein, We report a case of a 10-month-old baby girl with chronic bilateral keratoconjunctivitis, corneal scarring and neovascularization that was treated initially with topical immunosuppressants. METHODS Detailed ophthalmological assessment followed by molecular testing using whole exome sequencing. RESULTS In addition to the severe chronic bilateral keratoconjunctivitis, corneal scarring and neovascularization, patient weight was found to be low than 10th percentile. Further genetic testing revealed autoimmune regulator (AIRE) gene variant that was only reported once in the literature confirming the diagnosis of APS-1. Further workup detected hypoparathyroidism that was treated with calcium supplementation. CONCLUSION Our case represents the importance of multidisciplinary services and highlights the role of genetic testing in diagnosing such syndromic cases. We reviewed previous reports and found that available treatment for ocular involvement is usually nonsatisfactory; however, early detection and referral by ophthalmologists could result in treating previously undetected endocrine disorders that can be life threatening if left untreated.
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Affiliation(s)
- Muhannad Alkhalifah
- Anterior Segment Division, King Khaled Eye Specialist Hospital, Riyadh, Saudi Arabia
| | - Hani AlMezaine
- Department of Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
- Department of Ophthalmology, King Saud University Medical City (KSUMC), Riyadh, Saudi Arabia
| | - Basamat AlMoallem
- Department of Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
- Department of Ophthalmology, King Saud University Medical City (KSUMC), Riyadh, Saudi Arabia
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Vitozzi S, Correa SG, Lozano A, Fernández EJ, Quiroga R. A novel missense mutation in the AIRE gene underlying autoimmune polyglandular syndrome type 1. Immunogenetics 2024; 76:69-74. [PMID: 38030802 DOI: 10.1007/s00251-023-01324-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 10/08/2023] [Indexed: 12/01/2023]
Abstract
The immune regulator gene AIRE plays an essential role in the establishment of immune tolerance and the prevention of autoimmunity. This transcription factor plays a critical role in promoting self-tolerance in the thymus by regulating the expression of a large number of self-antigens that share the common feature of being tissue-restricted in their expression pattern in the periphery. Dysfunction of AIRE in humans causes a rare disease, autoimmune polyglandular syndrome type 1 (APS1), characterized by an autoimmune response against peripheral tissues, particularly endocrine tissues. Although a few dominant mutations have been described, the inactivation of AIRE is usually caused by recessive mutations. Recent data suggests that alterations in AIRE function contribute not only to APS1 but also to more common forms of autoimmune disease. Here, we present a previously unreported missense mutation (NM_000383.2:c.260 T > C) in exon 2 of the AIRE gene, predicted to cause the substitution (p.(Leu87Pro)) in the CARD domain of the AIRE protein. When inherited in conjunction with another dysfunctional AIRE allele, this mutation was associated with immune dysregulation in a pediatric patient. The presence of hypergammaglobulinemia, malabsorption syndrome, ectodermal dysplasia, mucocutaneous candidiasis, vitiligo, and hypothyroidism as well as the presence of multiple autoantibodies allowed us to confirm an APS1 diagnosis.
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Affiliation(s)
- Susana Vitozzi
- Laboratorios LACE, Córdoba, Argentina.
- Facultad de Ciencias de la Salud, Cátedra de Inmunología, Universidad Católica de Córdoba, Córdoba, Argentina.
| | - Silvia Graciela Correa
- Facultad de Ciencias Químicas, Departamento de Bioquímica Clínica, Universidad Nacional de Córdoba, Córdoba, Argentina
- Centro de Investigaciones en Bioquímica Clínica E Inmunología (CIBICI), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Córdoba, Argentina
| | - Alejandro Lozano
- Facultad de Ciencias de la Salud, Cátedra de Inmunología, Universidad Católica de Córdoba, Córdoba, Argentina
- Servicio de Alergia e Inmunología, Clínica Universitaria Reina Fabiola, Córdoba, Argentina
| | | | - Rodrigo Quiroga
- Facultad de Ciencias Químicas, Departamento de Química Teórica y Computacional, Universidad Nacional de Córdoba, Córdoba, Argentina.
- Instituto de Investigaciones en Físico-Química de Córdoba (INFIQC), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Córdoba, Argentina.
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Fierabracci A, Lanzillotta M, Vorgučin I, Palma A, Katanić D, Betterle C. Report of two siblings with APECED in Serbia: is there a founder effect of c.769C>T AIRE genotype? Ital J Pediatr 2021; 47:126. [PMID: 34078422 PMCID: PMC8173724 DOI: 10.1186/s13052-021-01075-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 05/17/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Autoimmune polyendocrinopathy-candidiasis-ectodermal-dystrophy (APECED) or autoimmune polyglandular syndrome Type 1 is a rare autosomal recessive syndrome. The disorder is caused by mutations in the AIRE (AutoImmune Regulator) gene. According to the classic criteria, clinical diagnosis requires the presence of at least two of three main components: chronic mucocutaneous candidiasis, hypoparathyroidism and primary adrenal insufficiency. Furthermore, patients are often affected by other endocrine or non-endocrine associated autoimmune conditions. The enrichment of the non-classical triad seems to occur differently in different cohorts. Screenings of the population revealed that homozygous AIRE mutations c.769C > T, c.415C > T and c.254A > G have a founder effect in Finnish, Sardinian and Iranian Jew populations respectively. CASE PRESENTATION We report here the clinical and genetic characteristics of two new Serbian APECED siblings, one male and one female, actual age of 27 and 24 respectively, born from non-consanguineous parents. Addison's disease was diagnosed in the male at the age of 3.5 and hypoparathyroidism at the age of 4. The female developed hypoparathyroidism at 4 years of age. She presented diffuse alopecia, madarosis, onychomycosis, teeth enamel dysplasia. She further developed Addison's disease at the age of 11 and Hashimoto's thyroiditis at the age of 13.5. She had menarche at the age of 14 but developed autoimmune oophoritis and premature ovarian failure at the age of 16. A treatment with hydrocortisone, fludrocortisone and alfacalcidiol was established for both siblings; L-T4 (levo-thyroxine) for thyroid dysfunction and levonorgestrel and etinilestradiol for POF were also administered to the female. Genetic screening revealed a homozygous c.769C > T (R257X (p.Arg257X)) AIRE mutation. We additionally reviewed the literature on 11 previously published Serbian patients and evaluated the frequency of their main diseases in comparison to Finnish, Sardinian, Turkish, Indian and North/South American cohorts. CONCLUSION A founder effect was discovered for the R257X genotype detected in the DNA of 10 homozygous and 2 heterozygous patients. Of note, all Serbian APECED patients were affected by adrenal insufficiency and 10 out of 13 patients presented CMC.
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Affiliation(s)
- Alessandra Fierabracci
- Infectivology and Clinical Trials Research Department, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy.
| | - Mariafrancesca Lanzillotta
- Infectivology and Clinical Trials Research Department, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Ivana Vorgučin
- Institute for Child and Youth Health Care of Vojvodina, Faculty of Medicine Novi Sad, Vojvodina, Serbia
| | - Alessia Palma
- Research Laboratories, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Dragan Katanić
- Institute for Child and Youth Health Care of Vojvodina, Faculty of Medicine Novi Sad, Vojvodina, Serbia
| | - Corrado Betterle
- Endocrine Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
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Fierabracci A, Arena A, Toto F, Gallo N, Puel A, Migaud M, Kumar M, Chengappa KG, Gulati R, Negi VS, Betterle C. Autoimmune polyendocrine syndrome type 1 (APECED) in the Indian population: case report and review of a series of 45 patients. J Endocrinol Invest 2021; 44:661-677. [PMID: 32767280 DOI: 10.1007/s40618-020-01376-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 07/26/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Autoimmune polyendocrinopathy-candidiasis-ectodermal-dystrophy (APECED) or autoimmune polyglandular syndrome type 1 (APS-1) is a rare autosomal recessive genetic disease due to mutations in the AIRE (AutoImmune REgulator) gene. The clinical diagnosis is classically based on the presence of at least two of the three main components: chronic mucocutaneous candidiasis, hypoparathyroidism and primary adrenal insufficiency. Patients often suffer from other endocrine or non-endocrine autoimmune conditions throughout life. APECED etiopathogenesis is mediated by T lymphocytes. Autoantibodies against proteins of the affected organs are found in the serum of APECED patients as well as neutralizing antibodies against cytokines. We report here the clinical and genetic characteristics of 45 Indian APECED patients in comparison to Finnish, Sardinian, Turkish and North/South American cohorts from their published results. We also report a new case of APECED of Indian origin, a 2-year old child suffering from chronic mucocutaneous candidiasis since the age of 8 months, with confirmatory AIRE homozygous mutation c.274C > T (p.R92W). CONCLUSION With the inherent limitations of a retrospective study, analysis of Indian APECED patients suggested that compared to classic criteria, application of Ferre/Lionakis criteria validated in North/South American patients could help in earlier diagnosis in 3 of 8 (37.5%) patients for whom adequate information for evaluation was available.
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Affiliation(s)
- A Fierabracci
- Infectivology and Clinical Trials Research Department, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy.
| | - A Arena
- Infectivology and Clinical Trials Research Department, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - F Toto
- Infectivology and Clinical Trials Research Department, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - N Gallo
- Laboratory Medicine, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - A Puel
- Laboratory of Human Genetics of Infectious Diseases, INSERM UMR 1163, Imagine Institute, University of Paris, Paris, France
| | - M Migaud
- Laboratory of Human Genetics of Infectious Diseases, INSERM UMR 1163, Imagine Institute, University of Paris, Paris, France
| | - M Kumar
- Department of Clinical Immunology, JIPMER, Pondicherry, India
| | - K G Chengappa
- Department of Clinical Immunology, JIPMER, Pondicherry, India
| | - R Gulati
- Endocrine Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - V S Negi
- Department of Clinical Immunology, JIPMER, Pondicherry, India
| | - C Betterle
- Endocrine Unit, Department of Medicine (DIMED), University of Padua, Padua, Italy
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Laurer E, Grünberger J, Naidoo U, Lanzersdorfer R, Wimleitner M, Tischlinger K, Högler W. Recombinant human parathyroid hormone (1-84) replacement therapy in a child with hypoparathyroidism. Bone 2021; 144:115834. [PMID: 33359892 DOI: 10.1016/j.bone.2020.115834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 12/17/2020] [Accepted: 12/19/2020] [Indexed: 10/22/2022]
Abstract
First line conventional therapy of hypoparathyroidism comprises oral calcium and active vitamin D analogues. This approach may fail to correct hypocalcemia and hyperphosphatemia caused by the absence of parathyroid hormone and carries the risk of long-term complications including ectopic calcifications and renal damage. Full-length recombinant human parathyroid hormone (rhPTH[1-84]) is approved for the treatment of hypoparathyroidism in adults refractory to conventional therapy. To date, there is no data in children. Here, we report the successful use of rhPTH(1-84) in a 5-year old girl with hypoparathyroidism and concomitant chronic diarrhea manifesting as part of the autoimmune polyglandular syndrome type 1. Prior to starting rhPTH(1-84), the patient had been on conventional and later on rhPTH(1-34) continuous pump therapy. Conventional therapy failed to meet serum and urinary calcium target levels, whilst the pump therapy wasn't well tolerated and posed handling difficulties. Dose optimization for rhPTH(1-84) was informed by serum ionized calcium, spot urinary calcium-to-creatinine ratio and 24-hour urinary calcium excretion. Twice-daily subcutaneous injections of rhPTH(1-84) with a total dose of 3.35 μg/kg/d was well-tolerated, raised serum ionized calcium to target range (1.05-1.15 mmol/L) and normalized serum phosphate levels. Urinary calcium excretion was slightly above the recommended limit of 4 mg/kg/24 h, but improved compared to conventional therapy, with no evidence of nephrocalcinosis. Twice-daily administration stabilized serum calcium and phosphate levels compared to once-daily injections. rhPTH(1-84) treatment was well tolerated and the girl did not manifest any acute clinical complications of hypoparathyroidism throughout the entire observation period. Our experience with this case indicates that rhPTH(1-84) may be a physiological hormone replacement for managing hypoparathyroidism in children.
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Affiliation(s)
- Elisabeth Laurer
- Department of Pediatrics and Adolescent Medicine, Johannes Kepler University Linz, Austria.
| | - Johanna Grünberger
- Department of Pediatrics and Adolescent Medicine, Johannes Kepler University Linz, Austria
| | - Uvistra Naidoo
- South African Tuberculosis Vaccine Institute, University of Cape Town, South Africa
| | - Roland Lanzersdorfer
- Department of Pediatrics and Adolescent Medicine, Johannes Kepler University Linz, Austria
| | - Marlene Wimleitner
- Department of Pediatrics and Adolescent Medicine, Johannes Kepler University Linz, Austria
| | - Katharina Tischlinger
- Department of Pediatrics and Adolescent Medicine, Johannes Kepler University Linz, Austria
| | - Wolfgang Högler
- Department of Pediatrics and Adolescent Medicine, Johannes Kepler University Linz, Austria
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Chen CB, Tahboub F, Plesec T, Kay M, Radhakrishnan K. A Review of Autoimmune Enteropathy and Its Associated Syndromes. Dig Dis Sci 2020; 65:3079-3090. [PMID: 32833153 DOI: 10.1007/s10620-020-06540-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 08/05/2020] [Indexed: 01/01/2023]
Abstract
Autoimmune enteropathy is an extremely rare condition characterized by an abnormal intestinal immune response which typically manifests within the first 6 months of life as severe, intractable diarrhea that does not respond to dietary modification. Affected individuals frequently present with other signs of autoimmunity. The diagnosis is made based on a characteristic combination of clinical symptoms, laboratory studies, and histological features on small bowel biopsy. Autoimmune enteropathy is associated with a number of other conditions and syndromes, most notably immunodysregulation polyendocrinopathy enteropathy X-linked (IPEX) syndrome and autoimmune polyglandular syndrome type 1 (APS-1). Diagnosis and treatment is challenging, and further research is needed to better understand the pathogenesis, disease progression, and long-term outcomes of these conditions.
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Affiliation(s)
- Charles B Chen
- Department of Pediatric Gastroenterology, Hepatology, and Nutrition, Cleveland Clinic Foundation, 9500 Euclid Ave, Cleveland, OH, 44195, USA.
| | - Farah Tahboub
- The University of Jordan School of Medicine, Queen Rania St 212, Amman, Jordan
| | - Thomas Plesec
- Department of Anatomic Pathology, Cleveland Clinic Foundation, 9500 Euclid Ave, Cleveland, OH, 44195, USA
| | - Marsha Kay
- Department of Pediatric Gastroenterology, Hepatology, and Nutrition, Cleveland Clinic Foundation, 9500 Euclid Ave, Cleveland, OH, 44195, USA
| | - Kadakkal Radhakrishnan
- Department of Pediatric Gastroenterology, Hepatology, and Nutrition, Cleveland Clinic Foundation, 9500 Euclid Ave, Cleveland, OH, 44195, USA
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