Beyond Dermatological Findings: Multisystem Involvement in Prolidase Deficiency
Objective: Prolidase deficiency is a metabolic and immunological disorder that is inherited in an autosomal recessive manner. In prolidase deficiency, a broad spectrum of differences is observed in patients, ranging from asymptomatic to multisystem involvement. There is scarce information in the lit...
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| Format: | Article |
| Language: | English |
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AVES Yayincilik
2025-01-01
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| Series: | Turkish Archives of Pediatrics |
| Online Access: | https://www.turkarchpediatr.org/en/beyond-dermatological-findings-multisystem-involvement-in-prolidase-deficiency-131727 |
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| author | Ezgi Yalcin Gungoren Zeynep Meric Asena Pinar Sefer Asuman Deveci Ozkan Salim Can Royala Babayeva Nurhan Kasap Ercan Nain Esra Ozek Yucel Ayca Kiykim Sevgi Bilgic-Eltan Ayse Deniz Yucelten Elif Karakoc-Aydiner Ahmet Ozen Safa Baris |
| author_facet | Ezgi Yalcin Gungoren Zeynep Meric Asena Pinar Sefer Asuman Deveci Ozkan Salim Can Royala Babayeva Nurhan Kasap Ercan Nain Esra Ozek Yucel Ayca Kiykim Sevgi Bilgic-Eltan Ayse Deniz Yucelten Elif Karakoc-Aydiner Ahmet Ozen Safa Baris |
| author_sort | Ezgi Yalcin Gungoren |
| collection | DOAJ |
| description | Objective: Prolidase deficiency is a metabolic and immunological disorder that is inherited in an autosomal recessive manner. In prolidase deficiency, a broad spectrum of differences is observed in patients, ranging from asymptomatic to multisystem involvement. There is scarce information in the literature on the atypical features and immunophenotypes of this disease. Aim of this study is to present 4 new cases to provide information on the rare features of the disease and to raise awareness.
Materials and Methods: This study included 4 female patients with prolidase deficiency. Their demographic, clinical, and immunologic characteristics were obtained from their medical records.
Results: There were 4 female patients (P1-P4), with a mean age of 18.5 years (min-max: 10-29) and a mean age of symptom onset of 6.9 years (min-max: 0.04-27). The main presenting complaints of the patients were skin lesions (100%), dysmorphic features (100%), neurodevelopmental delay (100%), frequent infections (100%), and prolonged diarrhea (50%). P2 had diffuse large B-cell lymphoma, resulting in early death. Interestingly, P1 and P2 experienced opportunistic infections such as cytomegalovirus, Epstein-Barr virus, and Pneumocystis jirovecii. Three patients (75%) had lymphopenia. Two patients had elevated IgE levels. Lymphocyte subgroup analysis showed an inverted CD4/CD8 ratio in all patients. In patients P1 and P2, the percentages of naive T cells and recent thymic emigrants were reduced, suggesting combined immune deficiency at the time of diagnosis. CD19+ B cells were also low in P1 and P2. Metabolic evaluations revealed low prolidase enzyme activity in P1 and P2.
Conclusion: Beyond the well-known classical dermatological findings, the presence of recurrent opportunistic infections, gastrointestinal involvement, malignancy, and flow cytometry findings suggestive of combined immunodeficiency indicate that the diagnosis of prolidase deficiency may be underestimated. Knowing the atypical and rare presentations will facilitate diagnosis and treatment of affected patients. |
| format | Article |
| id | doaj-art-25f6dca458634b31ab60c90fdd80a4d3 |
| institution | Kabale University |
| issn | 2757-6256 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | AVES Yayincilik |
| record_format | Article |
| series | Turkish Archives of Pediatrics |
| spelling | doaj-art-25f6dca458634b31ab60c90fdd80a4d32025-01-13T08:30:08ZengAVES YayincilikTurkish Archives of Pediatrics2757-62562025-01-01601485610.5152/TurkArchPediatr.2025.24172Beyond Dermatological Findings: Multisystem Involvement in Prolidase DeficiencyEzgi Yalcin Gungoren0Zeynep Meric1Asena Pinar Sefer2Asuman Deveci Ozkan3Salim Can4Royala Babayeva5Nurhan Kasap6Ercan Nain7 Esra Ozek Yucel8Ayca Kiykim9Sevgi Bilgic-Eltan10Ayse Deniz Yucelten11Elif Karakoc-Aydiner12Ahmet Ozen13Safa Baris14Division of Allergy and Immunology, Department of Pediatrics, Marmara University Faculty of Medicine, İstanbul, Türkiye ; İstanbul Jeffrey Modell Diagnostic and Research Center for Primary Immunodeficiencies, İstanbul, Türkiye ; Division of Pediatric Allergy and Immunology, Marmara University, The Işıl Berat Barlan Center for Translational Medicine, İstanbul, TürkiyeDivision of Allergy and Immunology, Department of Pediatrics, İstanbul University-Cerrahpaşa, İstanbul, TürkiyeDivision of Allergy and Immunology, Department of Pediatrics, Marmara University Faculty of Medicine, İstanbul, Türkiye ; İstanbul Jeffrey Modell Diagnostic and Research Center for Primary Immunodeficiencies, İstanbul, Türkiye ; Division of Pediatric Allergy and Immunology, Marmara University, The Işıl Berat Barlan Center for Translational Medicine, İstanbul, TürkiyeDepartment of Medical Biology, Sakarya University Faculty of Medicine, Sakarya, TürkiyeDivision of Allergy and Immunology, Department of Pediatrics, Marmara University Faculty of Medicine, İstanbul, Türkiye ; İstanbul Jeffrey Modell Diagnostic and Research Center for Primary Immunodeficiencies, İstanbul, Türkiye ; Division of Pediatric Allergy and Immunology, Marmara University, The Işıl Berat Barlan Center for Translational Medicine, İstanbul, TürkiyeDivision of Allergy and Immunology, Department of Pediatrics, Marmara University Faculty of Medicine, İstanbul, Türkiye ; İstanbul Jeffrey Modell Diagnostic and Research Center for Primary Immunodeficiencies, İstanbul, Türkiye ; Division of Pediatric Allergy and Immunology, Marmara University, The Işıl Berat Barlan Center for Translational Medicine, İstanbul, TürkiyeDivision of Allergy and Immunology, Department of Pediatrics, Marmara University Faculty of Medicine, İstanbul, Türkiye ; İstanbul Jeffrey Modell Diagnostic and Research Center for Primary Immunodeficiencies, İstanbul, Türkiye ; Division of Pediatric Allergy and Immunology, Marmara University, The Işıl Berat Barlan Center for Translational Medicine, İstanbul, TürkiyeDivision of Allergy and Immunology, Department of Pediatrics, Marmara University Faculty of Medicine, İstanbul, Türkiye ; İstanbul Jeffrey Modell Diagnostic and Research Center for Primary Immunodeficiencies, İstanbul, Türkiye ; Division of Pediatric Allergy and Immunology, Marmara University, The Işıl Berat Barlan Center for Translational Medicine, İstanbul, TürkiyeDivision of Allergy and Immunology, Department of Pediatrics, İstanbul University-Cerrahpaşa, İstanbul, TürkiyeDivision of Allergy and Immunology, Department of Pediatrics, İstanbul University-Cerrahpaşa, İstanbul, TürkiyeDivision of Allergy and Immunology, Department of Pediatrics, Marmara University Faculty of Medicine, İstanbul, Türkiye ; İstanbul Jeffrey Modell Diagnostic and Research Center for Primary Immunodeficiencies, İstanbul, Türkiye ; Division of Pediatric Allergy and Immunology, Marmara University, The Işıl Berat Barlan Center for Translational Medicine, İstanbul, TürkiyeDepartment of Dermatology, Marmara University Faculty of Medicine, İstanbul, TürkiyeDivision of Allergy and Immunology, Department of Pediatrics, Marmara University Faculty of Medicine, İstanbul, Türkiye ; İstanbul Jeffrey Modell Diagnostic and Research Center for Primary Immunodeficiencies, İstanbul, Türkiye ; Division of Pediatric Allergy and Immunology, Marmara University, The Işıl Berat Barlan Center for Translational Medicine, İstanbul, TürkiyeDivision of Allergy and Immunology, Department of Pediatrics, Marmara University Faculty of Medicine, İstanbul, Türkiye ; İstanbul Jeffrey Modell Diagnostic and Research Center for Primary Immunodeficiencies, İstanbul, Türkiye ; Division of Pediatric Allergy and Immunology, Marmara University, The Işıl Berat Barlan Center for Translational Medicine, İstanbul, TürkiyeDivision of Allergy and Immunology, Department of Pediatrics, Marmara University Faculty of Medicine, İstanbul, Türkiye ; İstanbul Jeffrey Modell Diagnostic and Research Center for Primary Immunodeficiencies, İstanbul, Türkiye ; Division of Pediatric Allergy and Immunology, Marmara University, The Işıl Berat Barlan Center for Translational Medicine, İstanbul, TürkiyeObjective: Prolidase deficiency is a metabolic and immunological disorder that is inherited in an autosomal recessive manner. In prolidase deficiency, a broad spectrum of differences is observed in patients, ranging from asymptomatic to multisystem involvement. There is scarce information in the literature on the atypical features and immunophenotypes of this disease. Aim of this study is to present 4 new cases to provide information on the rare features of the disease and to raise awareness. Materials and Methods: This study included 4 female patients with prolidase deficiency. Their demographic, clinical, and immunologic characteristics were obtained from their medical records. Results: There were 4 female patients (P1-P4), with a mean age of 18.5 years (min-max: 10-29) and a mean age of symptom onset of 6.9 years (min-max: 0.04-27). The main presenting complaints of the patients were skin lesions (100%), dysmorphic features (100%), neurodevelopmental delay (100%), frequent infections (100%), and prolonged diarrhea (50%). P2 had diffuse large B-cell lymphoma, resulting in early death. Interestingly, P1 and P2 experienced opportunistic infections such as cytomegalovirus, Epstein-Barr virus, and Pneumocystis jirovecii. Three patients (75%) had lymphopenia. Two patients had elevated IgE levels. Lymphocyte subgroup analysis showed an inverted CD4/CD8 ratio in all patients. In patients P1 and P2, the percentages of naive T cells and recent thymic emigrants were reduced, suggesting combined immune deficiency at the time of diagnosis. CD19+ B cells were also low in P1 and P2. Metabolic evaluations revealed low prolidase enzyme activity in P1 and P2. Conclusion: Beyond the well-known classical dermatological findings, the presence of recurrent opportunistic infections, gastrointestinal involvement, malignancy, and flow cytometry findings suggestive of combined immunodeficiency indicate that the diagnosis of prolidase deficiency may be underestimated. Knowing the atypical and rare presentations will facilitate diagnosis and treatment of affected patients.https://www.turkarchpediatr.org/en/beyond-dermatological-findings-multisystem-involvement-in-prolidase-deficiency-131727 |
| spellingShingle | Ezgi Yalcin Gungoren Zeynep Meric Asena Pinar Sefer Asuman Deveci Ozkan Salim Can Royala Babayeva Nurhan Kasap Ercan Nain Esra Ozek Yucel Ayca Kiykim Sevgi Bilgic-Eltan Ayse Deniz Yucelten Elif Karakoc-Aydiner Ahmet Ozen Safa Baris Beyond Dermatological Findings: Multisystem Involvement in Prolidase Deficiency Turkish Archives of Pediatrics |
| title | Beyond Dermatological Findings: Multisystem Involvement in Prolidase Deficiency |
| title_full | Beyond Dermatological Findings: Multisystem Involvement in Prolidase Deficiency |
| title_fullStr | Beyond Dermatological Findings: Multisystem Involvement in Prolidase Deficiency |
| title_full_unstemmed | Beyond Dermatological Findings: Multisystem Involvement in Prolidase Deficiency |
| title_short | Beyond Dermatological Findings: Multisystem Involvement in Prolidase Deficiency |
| title_sort | beyond dermatological findings multisystem involvement in prolidase deficiency |
| url | https://www.turkarchpediatr.org/en/beyond-dermatological-findings-multisystem-involvement-in-prolidase-deficiency-131727 |
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