DOCK8 mutation diagnosed using whole-exome sequencing of the dried blood spot-derived DNA: a case report of an Iraqi girl diagnosed in Japan
Abstract Background Dedicator of cytokinesis 8 (DOCK8) deficiency (MIM #243700) is a rare disease, leads to a combined primary immunodeficiency (PID), and accounts for the autosomal recessive-hyper immunoglobulin E syndrome (AR-HIES). DOCK8 deficiency status characterizes by recurrent infections, at...
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| Format: | Article |
| Language: | English |
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BMC
2019-06-01
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| Series: | BMC Medical Genetics |
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| Online Access: | http://link.springer.com/article/10.1186/s12881-019-0837-4 |
| _version_ | 1819062319406120960 |
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| author | Lika’a Fasih Y. Al-Kzayer Hanadi Munaf H. Al-Aradi Tomonari Shigemura Kenji Sano Miyuki Tanaka Motoharu Hamada Kenan Hussien Ali Osamah Mohammed Aldaghir Yozo Nakazawa Yusuke Okuno |
| author_facet | Lika’a Fasih Y. Al-Kzayer Hanadi Munaf H. Al-Aradi Tomonari Shigemura Kenji Sano Miyuki Tanaka Motoharu Hamada Kenan Hussien Ali Osamah Mohammed Aldaghir Yozo Nakazawa Yusuke Okuno |
| author_sort | Lika’a Fasih Y. Al-Kzayer |
| collection | DOAJ |
| description | Abstract Background Dedicator of cytokinesis 8 (DOCK8) deficiency (MIM #243700) is a rare disease, leads to a combined primary immunodeficiency (PID), and accounts for the autosomal recessive-hyper immunoglobulin E syndrome (AR-HIES). DOCK8 deficiency status characterizes by recurrent infections, atopy, and risk of cancer. Lymphoproliferative disease complicating PID, is difficult to diagnose. Our aim is to present a rare case of PID, and to the best of our knowledge, she is the first case of DOCK8 deficiency from Iraq. The genetic diagnosis was carried out in Japan using dried blood spot-based DNA transfer and whole-exome sequencing. Case presentation An 11-year-old Iraqi girl, of double first-cousin-parents, had a history of severe eczema, food allergy, and repeated infections. She presented with a jaw mass, bilateral cervical and axillary lymphadenopathy, and immunoglobulin (Ig) assays of 20, 3.3 and 1.7-fold above maximum normal level for age of IgE, IgA and IgG, respectively, along with a low IgM, eosinophilia and lymphopenia. Based on the jaw mass biopsy, non-Hodgkin lymphoma was suggested in Iraq, whereas histopathological re-evaluation in Japan revealed the diagnosis of a polyclonal reactive proliferation spectrum of lymphoproliferative disorders/plasmacytic hyperplasia, complicating PID. Whole-exome sequencing supported the diagnosis of PID by identifying a homozygous DOCK8 mutation with previously reported pathogenicity (NM_203447:c.3332delT, p.Phe1113Leufs*2), that may be attributed to consanguinity. Conclusions International collaboration using an effective DNA transportation technique and next-generation sequencing was the key to pinpoint the diagnosis of DOCK8 deficiency. Our case asserted that careful pathogenetic evaluation, in an advanced setting, was crucial for ruling out the neoplastic process. Pediatricians in areas with a high prevalence of consanguinity marriage should have a high index of suspicion of DOCK8 deficiency in patients with recalcitrant eczema, and frequent respiratory and skin infectious episodes. |
| first_indexed | 2024-12-21T14:56:53Z |
| format | Article |
| id | doaj.art-6e98f0ae7a2a455c8ceeb1783c571814 |
| institution | Directory Open Access Journal |
| issn | 1471-2350 |
| language | English |
| last_indexed | 2024-12-21T14:56:53Z |
| publishDate | 2019-06-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Medical Genetics |
| spelling | doaj.art-6e98f0ae7a2a455c8ceeb1783c5718142022-12-21T18:59:42ZengBMCBMC Medical Genetics1471-23502019-06-012011610.1186/s12881-019-0837-4DOCK8 mutation diagnosed using whole-exome sequencing of the dried blood spot-derived DNA: a case report of an Iraqi girl diagnosed in JapanLika’a Fasih Y. Al-Kzayer0Hanadi Munaf H. Al-Aradi1Tomonari Shigemura2Kenji Sano3Miyuki Tanaka4Motoharu Hamada5Kenan Hussien Ali6Osamah Mohammed Aldaghir7Yozo Nakazawa8Yusuke Okuno9Department of Pediatrics, Shinshu University School of MedicineDepartment of Pediatrics, Al-Hussein Teaching HospitalDepartment of Pediatrics, Shinshu University School of MedicineDepartment of Pathology, Iida Municipal Hospital, IidaDepartment of Pediatrics, Shinshu University School of MedicineDepartment of Pediatrics, Nagoya University Graduate School of MedicineDepartment of Family Medicine, Baghdad University, College of MedicineDepartment of Oral and Maxillofacial Surgery, College of Dentistry, Al-Muthanna UniversityDepartment of Pediatrics, Shinshu University School of MedicineCenter for Advanced Medicine and Clinical Research, Nagoya University HospitalAbstract Background Dedicator of cytokinesis 8 (DOCK8) deficiency (MIM #243700) is a rare disease, leads to a combined primary immunodeficiency (PID), and accounts for the autosomal recessive-hyper immunoglobulin E syndrome (AR-HIES). DOCK8 deficiency status characterizes by recurrent infections, atopy, and risk of cancer. Lymphoproliferative disease complicating PID, is difficult to diagnose. Our aim is to present a rare case of PID, and to the best of our knowledge, she is the first case of DOCK8 deficiency from Iraq. The genetic diagnosis was carried out in Japan using dried blood spot-based DNA transfer and whole-exome sequencing. Case presentation An 11-year-old Iraqi girl, of double first-cousin-parents, had a history of severe eczema, food allergy, and repeated infections. She presented with a jaw mass, bilateral cervical and axillary lymphadenopathy, and immunoglobulin (Ig) assays of 20, 3.3 and 1.7-fold above maximum normal level for age of IgE, IgA and IgG, respectively, along with a low IgM, eosinophilia and lymphopenia. Based on the jaw mass biopsy, non-Hodgkin lymphoma was suggested in Iraq, whereas histopathological re-evaluation in Japan revealed the diagnosis of a polyclonal reactive proliferation spectrum of lymphoproliferative disorders/plasmacytic hyperplasia, complicating PID. Whole-exome sequencing supported the diagnosis of PID by identifying a homozygous DOCK8 mutation with previously reported pathogenicity (NM_203447:c.3332delT, p.Phe1113Leufs*2), that may be attributed to consanguinity. Conclusions International collaboration using an effective DNA transportation technique and next-generation sequencing was the key to pinpoint the diagnosis of DOCK8 deficiency. Our case asserted that careful pathogenetic evaluation, in an advanced setting, was crucial for ruling out the neoplastic process. Pediatricians in areas with a high prevalence of consanguinity marriage should have a high index of suspicion of DOCK8 deficiency in patients with recalcitrant eczema, and frequent respiratory and skin infectious episodes.http://link.springer.com/article/10.1186/s12881-019-0837-4DOCK8 deficiencyPrimary immune deficiency (PID)Dried blood spotsFlinders technology associates (FTA) cardsWhole exome sequencing (WES)Hyper immunoglobulin E syndrome (HIES) |
| spellingShingle | Lika’a Fasih Y. Al-Kzayer Hanadi Munaf H. Al-Aradi Tomonari Shigemura Kenji Sano Miyuki Tanaka Motoharu Hamada Kenan Hussien Ali Osamah Mohammed Aldaghir Yozo Nakazawa Yusuke Okuno DOCK8 mutation diagnosed using whole-exome sequencing of the dried blood spot-derived DNA: a case report of an Iraqi girl diagnosed in Japan BMC Medical Genetics DOCK8 deficiency Primary immune deficiency (PID) Dried blood spots Flinders technology associates (FTA) cards Whole exome sequencing (WES) Hyper immunoglobulin E syndrome (HIES) |
| title | DOCK8 mutation diagnosed using whole-exome sequencing of the dried blood spot-derived DNA: a case report of an Iraqi girl diagnosed in Japan |
| title_full | DOCK8 mutation diagnosed using whole-exome sequencing of the dried blood spot-derived DNA: a case report of an Iraqi girl diagnosed in Japan |
| title_fullStr | DOCK8 mutation diagnosed using whole-exome sequencing of the dried blood spot-derived DNA: a case report of an Iraqi girl diagnosed in Japan |
| title_full_unstemmed | DOCK8 mutation diagnosed using whole-exome sequencing of the dried blood spot-derived DNA: a case report of an Iraqi girl diagnosed in Japan |
| title_short | DOCK8 mutation diagnosed using whole-exome sequencing of the dried blood spot-derived DNA: a case report of an Iraqi girl diagnosed in Japan |
| title_sort | dock8 mutation diagnosed using whole exome sequencing of the dried blood spot derived dna a case report of an iraqi girl diagnosed in japan |
| topic | DOCK8 deficiency Primary immune deficiency (PID) Dried blood spots Flinders technology associates (FTA) cards Whole exome sequencing (WES) Hyper immunoglobulin E syndrome (HIES) |
| url | http://link.springer.com/article/10.1186/s12881-019-0837-4 |
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