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Morishita A, Yeh TW, Tomari K, Furuichi M, Kashimada K, Morio T, Takagi M, Imai K. Transient immune deficiency accompanied with homozygous CBL rare variant. Pediatr Int 2022; 65:e15439. [PMID: 36495474 DOI: 10.1111/ped.15439] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/08/2022] [Accepted: 12/09/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND CBL plays a critical role in cellular proliferation. Germline heterozygous CBL variants give rise to CBL syndrome, which is phenotypically similar to RASopathy. Somatic mutations in CBL have been reported in patients with juvenile myelomonocytic leukemia (JMML). METHODS Exome analysis was performed in a patient with immunodeficiency who developed Pneumocystis jirovecii pneumonia. RESULTS Exome analysis identified a homozygous CBL missense variant. Cell biological analysis of this CBL variant confirmed attenuated function. CONCLUSION Spontaneous regression of hematological proliferation has been observed in patients with CBL mutated JMML and in patients with CBL syndrome. Intriguingly, immunological impairment was spontaneously ameliorated by aging in this patient.
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Affiliation(s)
- Aoi Morishita
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Tzu-Wen Yeh
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kouki Tomari
- Department of General Pediatrics, Okinawa Prefectural Nanbu Medical Center & Children's Medical Center, Okinawa, Japan
| | - Mihoko Furuichi
- Division of Infectious Diseases and Immunology, Saitama Prefectural Children's Medical Center, Saitama, Japan.,Division of Infectious Diseases, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - Kenichi Kashimada
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Tomohiro Morio
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Masatoshi Takagi
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kohsuke Imai
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.,Department of Pediatrics, National Defense Medical College, Saitama, Japan
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Yeh TW, Okano T, Naruto T, Yamashita M, Okamura M, Tanita K, Du L, Pan-Hammarström Q, Mitsuiki N, Okada S, Kanegane H, Imai K, Morio T. APRIL-dependent lifelong plasmacyte maintenance and immunoglobulin production in humans. J Allergy Clin Immunol 2020; 146:1109-1120.e4. [DOI: 10.1016/j.jaci.2020.03.025] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 03/13/2020] [Accepted: 03/20/2020] [Indexed: 12/20/2022]
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Hoshino A, Takashima T, Yoshida K, Morimoto A, Kawahara Y, Yeh TW, Okano T, Yamashita M, Mitsuiki N, Imai K, Sakatani T, Nakazawa A, Okuno Y, Shiraishi Y, Chiba K, Tanaka H, Miyano S, Ogawa S, Kojima S, Morio T, Kanegane H. Dysregulation of Epstein-Barr Virus Infection in Hypomorphic ZAP70 Mutation. J Infect Dis 2019; 218:825-834. [PMID: 29684201 DOI: 10.1093/infdis/jiy231] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 04/17/2018] [Indexed: 12/17/2022] Open
Abstract
Background Some patients with genetic defects develop Epstein-Barr virus (EBV)-associated lymphoproliferative disorder (LPD)/lymphoma as the main feature. Hypomophic mutations can cause different clinical and laboratory manifestations from null mutations in the same genes. Methods We sought to describe the clinical and immunologic phenotype of a 21-month-old boy with EBV-associated LPD who was in good health until then. A genetic and immunologic analysis was performed. Results Whole-exome sequencing identified a novel compound heterozygous mutation of ZAP70 c.703-1G>A and c.1674G>A. A small amount of the normal transcript was observed. Unlike ZAP70 deficiency, which has been previously described as severe combined immunodeficiency with nonfunctional CD4+ T cells and absent CD8+ T cells, the patient had slightly low numbers of CD8+ T cells and a small amount of functional T cells. EBV-specific CD8+ T cells and invariant natural killer T (iNKT) cells were absent. The T-cell receptor repertoire, determined using next generation sequencing, was significantly restricted. Conclusions Our patient showed that a hypomorphic mutation of ZAP70 can lead to EBV-associated LPD and that EBV-specific CD8+ T cells and iNKT cells are critically involved in immune response against EBV infection.
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Affiliation(s)
- Akihiro Hoshino
- Department of Pediatrics, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Japan.,Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Japan
| | - Takehiro Takashima
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Japan
| | - Kenichi Yoshida
- Department of Pathology and Tumor Biology, Graduate School of Medicine, Kyoto University, Japan
| | - Akira Morimoto
- Department of Pediatrics, Jichi Medical University of Medicine, Shimotsuke, Japan
| | - Yuta Kawahara
- Department of Pediatrics, Jichi Medical University of Medicine, Shimotsuke, Japan
| | - Tzu-Wen Yeh
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Japan
| | - Tsubasa Okano
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Japan
| | - Motoi Yamashita
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Japan
| | - Noriko Mitsuiki
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Japan
| | - Kohsuke Imai
- Department of Community Pediatrics, Perinatal and Maternal Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Japan
| | - Takashi Sakatani
- Department of Diagnostic Pathology, Jichi Medical University Hospital, Shimotsuke, Japan
| | - Atsuko Nakazawa
- Department of Pathology, National Center for Child Health and Development, Tokyo, Japan
| | - Yusuke Okuno
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Japan
| | - Yuichi Shiraishi
- Laboratory of DNA Information Analysis, The University of Tokyo, Japan
| | - Kenichi Chiba
- Laboratory of DNA Information Analysis, The University of Tokyo, Japan
| | - Hiroko Tanaka
- Laboratory of Sequence Analysis, Human Genome Center, Institute of Medical Science, The University of Tokyo, Japan
| | - Satoru Miyano
- Laboratory of DNA Information Analysis, The University of Tokyo, Japan.,Laboratory of Sequence Analysis, Human Genome Center, Institute of Medical Science, The University of Tokyo, Japan
| | - Seishi Ogawa
- Department of Pathology and Tumor Biology, Graduate School of Medicine, Kyoto University, Japan
| | - Seiji Kojima
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Japan
| | - Tomohiro Morio
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Japan
| | - Hirokazu Kanegane
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Japan
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4
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Tanita K, Hoshino A, Imadome KI, Kamiya T, Inoue K, Okano T, Yeh TW, Yanagimachi M, Shiraishi A, Ishimura M, Schober T, Rohlfs M, Takagi M, Imai K, Takada H, Ohga S, Klein C, Morio T, Kanegane H. Epstein-Barr Virus-Associated γδ T-Cell Lymphoproliferative Disorder Associated With Hypomorphic IL2RG Mutation. Front Pediatr 2019; 7:15. [PMID: 30778380 PMCID: PMC6369201 DOI: 10.3389/fped.2019.00015] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 01/15/2019] [Indexed: 12/11/2022] Open
Abstract
Chronic active Epstein-Barr virus (EBV) infection (CAEBV) is an EBV-associated lymphoproliferative disease characterized by repeated or sustainable infectious mononucleosis (IM)-like symptoms. EBV is usually detected in B cells in patients who have IM or Burkitt's lymphoma and even in patients with X-linked lymphoproliferative syndrome, which is confirmed to have vulnerability to EBV infection. In contrast, EBV infects T cells (CD4+ T, CD8+ T, and γδT) or NK cells mono- or oligoclonally in CAEBV patients. It is known that the CAEBV phenotypes differ depending on which cells are infected with EBV. CAEBV is postulated to be associated with a genetic immunological abnormality, although its cause remains undefined. Here we describe a case of EBV-related γδT-cell proliferation with underlying hypomorphic IL2RG mutation. The immunological phenotype consisted of γδT-cell proliferation in the peripheral blood. A presence of EBV-infected B cells and γδT cells mimicked γδT-cell-type CAEBV. Although the patient had normal expression of CD132 (common γ chain), the phosphorylation of STAT was partially defective, indicating impaired activation of the downstream signal of the JAK/STAT pathway. Although the patient was not diagnosed as having CAEBV, this observation shows that CAEBV might be associated with immunological abnormality.
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Affiliation(s)
- Kay Tanita
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Akihiro Hoshino
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Ken-Ichi Imadome
- Department of Advanced Medicine for Virus Infections, National Center for Child Health and Development, Tokyo, Japan
| | - Takahiro Kamiya
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kento Inoue
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Tsubasa Okano
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Tzu-Wen Yeh
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Masakatsu Yanagimachi
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Akira Shiraishi
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Masataka Ishimura
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Tilmann Schober
- Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Meino Rohlfs
- Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Masatoshi Takagi
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kohsuke Imai
- Department of Community Pediatrics, Perinatal and Maternal Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hidetoshi Takada
- Department of Child Health, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Shouichi Ohga
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Christoph Klein
- Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Tomohiro Morio
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hirokazu Kanegane
- Department of Child Health and Development, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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5
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Okano T, Imai K, Tsujita Y, Mitsuiki N, Yoshida K, Kamae C, Honma K, Mitsui-Sekinaka K, Sekinaka Y, Kato T, Hanabusa K, Endo E, Takashima T, Hiroki H, Yeh TW, Tanaka K, Nagahori M, Tsuge I, Bando Y, Iwasaki F, Shikama Y, Inoue M, Kimoto T, Moriguchi N, Yuza Y, Kaneko T, Suzuki K, Matsubara T, Maruo Y, Kunitsu T, Waragai T, Sano H, Hashimoto Y, Tasaki K, Suzuki O, Shirakawa T, Kato M, Uchiyama T, Ishimura M, Tauchi T, Yagasaki H, Jou ST, Yu HH, Kanegane H, Kracker S, Durandy A, Kojima D, Muramatsu H, Wada T, Inoue Y, Takada H, Kojima S, Ogawa S, Ohara O, Nonoyama S, Morio T. Hematopoietic stem cell transplantation for progressive combined immunodeficiency and lymphoproliferation in patients with activated phosphatidylinositol-3-OH kinase δ syndrome type 1. J Allergy Clin Immunol 2019; 143:266-275. [DOI: 10.1016/j.jaci.2018.04.032] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 03/20/2018] [Accepted: 04/09/2018] [Indexed: 11/15/2022]
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Kamae C, Imai K, Kato T, Okano T, Honma K, Nakagawa N, Yeh TW, Noguchi E, Ohara A, Shigemura T, Takahashi H, Takakura S, Hayashi M, Honma A, Watanabe S, Shigemori T, Ohara O, Sasaki H, Kubota T, Morio T, Kanegane H, Nonoyama S. Clinical and Immunological Characterization of ICF Syndrome in Japan. J Clin Immunol 2018; 38:927-937. [PMID: 30353301 DOI: 10.1007/s10875-018-0559-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [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: 06/21/2018] [Accepted: 10/03/2018] [Indexed: 12/31/2022]
Abstract
OBJECTIVE Immunodeficiency, centromeric instability, and facial anomalies (ICF) syndrome is a rare autosomal recessive primary immunodeficiency. Hypogammaglobulinemia is a major manifestation of ICF syndrome, but immunoglobulin replacement therapy does not seem to be effective for some ICF patients. Therefore, we aimed to reassess the immunological characteristics of this syndrome. METHODS Eleven Japanese patients with ICF syndrome were enrolled. We performed whole-exome sequencing in four cases and homozygosity mapping using SNP analysis in two. We evaluated their clinical manifestations and immunological status. RESULTS We newly diagnosed six ICF patients who had tentatively been diagnosed with common variable immunodeficiency. We identified two novel mutations in the DNMT3B gene and one novel mutation in the ZBTB24 gene. All patients showed low serum IgG and/or IgG2 levels and were treated by periodic immunoglobulin replacement therapy. Three of the six patients showed worse results of the mitogen-induced lymphocyte proliferation test. Analyses of lymphocyte subpopulations revealed that CD19+CD27+ memory B cells were low in seven of nine patients, CD3+ T cells were low in three patients, CD4/8 ratio was inverted in five patients, CD31+ recent thymic emigrant cells were low in two patients, and CD19+ B cells were low in four patients compared with those in the normal controls. ICF2 patients showed lower proportions of CD19+ B cells and CD16+56+ NK cells and significantly higher proportions of CD3+ T cells than ICF1 patients. T cell receptor excision circles were undetectable in two patients. Despite being treated by immunoglobulin replacement therapy, three patients died of influenza virus, fatal viral infection with persistent Epstein-Barr virus infection, or JC virus infection. One of three dead patients showed normal intelligence with mild facial anomaly. Two patients presented with autoimmune or inflammatory manifestations. Infectious episodes decreased in three patients who were started on trimethoprim-sulfamethoxazole and/or antifungal drugs in addition to immunoglobulin replacement therapy. These patients might have suffered from T cell immunodeficiency. CONCLUSION These results indicate that patients with ICF syndrome have a phenotype of combined immunodeficiency. Thus, to achieve a better prognosis, these patients should be treated as having combined immunodeficiency in addition to receiving immunoglobulin replacement therapy.
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Affiliation(s)
- Chikako Kamae
- Department of Pediatrics, National Defense Medical College, 3-2, Namiki, Tokorozawa, Saitama, 359-0042, Japan.
- Department of Pediatrics, Self Defense Forces Central Hospital, Tokyo, Japan.
| | - Kohsuke Imai
- Department of Community Pediatrics, Perinatal and Maternal Medicine, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Tamaki Kato
- Department of Pediatrics, National Defense Medical College, 3-2, Namiki, Tokorozawa, Saitama, 359-0042, Japan
- Department of Pediatrics, Self Defense Forces Central Hospital, Tokyo, Japan
| | - Tsubasa Okano
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kenichi Honma
- Department of Pediatrics, National Defense Medical College, 3-2, Namiki, Tokorozawa, Saitama, 359-0042, Japan
| | - Noriko Nakagawa
- Department of Pediatrics, National Defense Medical College, 3-2, Namiki, Tokorozawa, Saitama, 359-0042, Japan
- Department of Pediatrics, Self Defense Forces Central Hospital, Tokyo, Japan
| | - Tzu-Wen Yeh
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Emiko Noguchi
- Department of Medical Genetics, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Akira Ohara
- Department of Pediatrics, Toho University School of Medicine, Tokyo, Japan
| | - Tomonari Shigemura
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Japan
| | - Hiroshi Takahashi
- Department of Neurology, National Hospital Organization, Tottori Medical Center, Tottori, Japan
| | - Shunichi Takakura
- Department of Infectious Diseases, Okinawa Chubu Hospital, Uruma, Japan
| | | | - Aoi Honma
- Department of Pediatrics, Tsuchiura Kyodo General Hospital, Tsuchiura, Japan
| | - Seiichi Watanabe
- Department of Pediatrics, Tsuchiura Kyodo General Hospital, Tsuchiura, Japan
| | - Tomoko Shigemori
- Department of Pediatrics, Nippon Medical School Tama Nagayama Hospital, Tama, Japan
| | - Osamu Ohara
- Department of Applied Genomics, Kazusa DNA Research Institute, Kisarazu, Japan
| | - Hiroyuki Sasaki
- Division of Epigenomics and Development, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Takeo Kubota
- Faculty of Child Studies, Seitoku University, Matsudo, Japan
| | - Tomohiro Morio
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Hirokazu Kanegane
- Department of Child Health and Development, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Shigeaki Nonoyama
- Department of Pediatrics, National Defense Medical College, 3-2, Namiki, Tokorozawa, Saitama, 359-0042, Japan
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Nakagawa R, Takasawa K, Yeh TW, Imai K, Kashimada K, Morio T. Type 1 diabetes mellitus associated with activated phosphatidylinositol 3-kinase delta syndrome, type 2. J Diabetes 2018; 10:421-422. [PMID: 29280567 DOI: 10.1111/1753-0407.12638] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 12/21/2017] [Accepted: 12/21/2017] [Indexed: 11/29/2022] Open
Affiliation(s)
- Ryuichi Nakagawa
- Department of Paediatrics and Developmental Biology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kei Takasawa
- Department of Paediatrics and Developmental Biology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Tzu-Wen Yeh
- Department of Paediatrics and Developmental Biology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kohsuke Imai
- Department of Paediatrics and Developmental Biology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kenichi Kashimada
- Department of Paediatrics and Developmental Biology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Tomohiro Morio
- Department of Paediatrics and Developmental Biology, Tokyo Medical and Dental University, Tokyo, Japan
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8
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Okano T, Tsujita Y, Kanegane H, Mitsui-Sekinaka K, Tanita K, Miyamoto S, Yeh TW, Yamashita M, Terada N, Ogura Y, Takagi M, Imai K, Nonoyama S, Morio T. Droplet Digital PCR-Based Chimerism Analysis for Primary Immunodeficiency Diseases. J Clin Immunol 2018; 38:300-306. [PMID: 29671114 DOI: 10.1007/s10875-018-0497-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 04/05/2018] [Indexed: 11/28/2022]
Abstract
OBJECTIVE In the current study, we aimed to accurately evaluate donor/recipient or male/female chimerism in samples from patients who underwent hematopoietic stem cell transplantation (HSCT). METHODS We designed the droplet digital polymerase chain reaction (ddPCR) for SRY and RPP30 to detect the male/female chimerism. We also developed mutation-specific ddPCR for four primary immunodeficiency diseases. RESULTS The accuracy of the male/female chimerism analysis using ddPCR was confirmed by comparing the results with those of conventional methods (fluorescence in situ hybridization and short tandem repeat-PCR) and evaluating dilution assays. In particular, we found that this method was useful for analyzing small samples. Thus, this method could be used with patient samples, especially to sorted leukocyte subpopulations, during the early post-transplant period. Four mutation-specific ddPCR accurately detected post-transplant chimerism. CONCLUSION ddPCR-based male/female chimerism analysis and mutation-specific ddPCR were useful for all HSCT, and these simple methods contribute to following the post-transplant chimerism, especially in disease-specific small leukocyte fractions.
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Affiliation(s)
- Tsubasa Okano
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Yuki Tsujita
- Department of Pediatrics, National Defense Medical College, Saitama, Japan
| | - Hirokazu Kanegane
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.
| | | | - Kay Tanita
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Satoshi Miyamoto
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Tzu-Wen Yeh
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Motoi Yamashita
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Naomi Terada
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Yumi Ogura
- Department of Pediatrics, National Defense Medical College, Saitama, Japan
| | - Masatoshi Takagi
- Department of Community Pediatrics, Perinatal and Maternal Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kohsuke Imai
- Department of Community Pediatrics, Perinatal and Maternal Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Shigeaki Nonoyama
- Department of Pediatrics, National Defense Medical College, Saitama, Japan
| | - Tomohiro Morio
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
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9
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Asano T, Okada S, Tsumura M, Yeh TW, Mitsui-Sekinaka K, Tsujita Y, Ichinose Y, Shimada A, Hashimoto K, Wada T, Imai K, Ohara O, Morio T, Nonoyama S, Kobayashi M. Enhanced AKT Phosphorylation of Circulating B Cells in Patients With Activated PI3Kδ Syndrome. Front Immunol 2018; 9:568. [PMID: 29675019 PMCID: PMC5895775 DOI: 10.3389/fimmu.2018.00568] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 03/06/2018] [Indexed: 01/15/2023] Open
Abstract
Activated PI3Kδ syndrome (APDS) is a primary immunodeficiency characterized by recurrent respiratory tract infections, lymphoproliferation, and defective IgG production. Heterozygous mutations in PIK3CD, PIK3R1, or PTEN, which are related to the hyperactive phosphoinositide 3-kinase (PI3K) signaling, were recently presented to cause APDS1 or APDS2 (APDSs), or APDS-like (APDS-L) disorder. In this study, we examined the AKT phosphorylation of peripheral blood lymphocytes and monocytes in patients with APDSs and APDS-L by using flow cytometry. CD19+ B cells of peripheral blood in APDS2 patients showed the enhanced phosphorylation of AKT at Ser473 (pAKT) without any specific stimulation. The enhanced pAKT in CD19+ B cells was normalized by the addition of a p110δ inhibitor. In contrast, CD3+ T cells and CD14+ monocytes did not show the enhanced pAKT in the absence of stimulation. These findings were similarly observed in patients with APDS1 and APDS-L. Among CD19+ B cells, enhanced pAKT was prominently detected in CD10+ immature B cells compared with CD10− mature B cells. Enhanced pAKT was not observed in B cells of healthy controls, patients with common variable immunodeficiency, and hyper IgM syndrome due to CD40L deficiency. These results suggest that the enhanced pAKT in circulating B cells may be useful for the discrimination of APDS1, APDS2, and APDS-L from other antibody deficiencies.
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Affiliation(s)
- Takaki Asano
- Department of Pediatrics, Hiroshima University Graduate School of Biomedical & Health Sciences, Hiroshima, Japan
| | - Satoshi Okada
- Department of Pediatrics, Hiroshima University Graduate School of Biomedical & Health Sciences, Hiroshima, Japan
| | - Miyuki Tsumura
- Department of Pediatrics, Hiroshima University Graduate School of Biomedical & Health Sciences, Hiroshima, Japan
| | - Tzu-Wen Yeh
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | | | - Yuki Tsujita
- Department of Pediatrics, National Defense Medical College, Tokorozawa, Japan
| | | | - Akira Shimada
- Department of Pediatrics, Okayama University Graduate School of Medicine, Okayama, Japan
| | - Kunio Hashimoto
- Department of Pediatrics, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Taizo Wada
- Department of Pediatrics, School of Medicine, Institute of Medical, Pharmaceutical, and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Kohsuke Imai
- Department of Community Pediatrics, Perinatal and Maternal Medicine, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Osamu Ohara
- Department of Technology Development, Kazusa DNA Research Institute, Kisarazu, Japan
| | - Tomohiro Morio
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Shigeaki Nonoyama
- Department of Pediatrics, National Defense Medical College, Tokorozawa, Japan
| | - Masao Kobayashi
- Department of Pediatrics, Hiroshima University Graduate School of Biomedical & Health Sciences, Hiroshima, Japan
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Okano T, Nishikawa T, Watanabe E, Watanabe T, Takashima T, Yeh TW, Yamashita M, Tanaka-Kubota M, Miyamoto S, Mitsuiki N, Takagi M, Kawano Y, Mochizuki Y, Imai K, Kanegane H, Morio T. Maternal T and B cell engraftment in two cases of X-linked severe combined immunodeficiency with IgG1 gammopathy. Clin Immunol 2017; 183:112-120. [PMID: 28780374 DOI: 10.1016/j.clim.2017.08.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 06/21/2017] [Accepted: 08/01/2017] [Indexed: 01/12/2023]
Abstract
X-linked severe combined immunodeficiency (X-SCID), caused by defects in the common gamma chain, is typically characterized by T and NK cell defects with the presence of B cells. T cell dysfunction and impaired class-switch recombination of B cells mean that patients typically have defects in class-switched immunoglobulins (IgG, IgA, and IgE) with detectable IgM. Here, we describe two patients with X-SCID with IgG1 gammopathy, in whom we identified maternal T and B cell engraftment. Exclusively, maternal B cells were found among the IgD-CD27+ class-switched memory B cells, whereas the patients' B cells remained naïve. In vitro stimulation with CD40L+IL-21 revealed that peripheral blood cells from both patients produced only IgG1. Class-switched maternal B cells had restricted receptor repertoires with various constant regions and few somatic hypermutations. In conclusion, engrafted maternal B cells underwent class-switch recombination and produced immunoglobulin, causing hypergammaglobulinemia in patients with X-SCID.
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Affiliation(s)
- Tsubasa Okano
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Takuro Nishikawa
- Department of Pediatrics, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Eri Watanabe
- Laboratory of Diagnostic Medicine, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Takashi Watanabe
- Laboratory for Integrative Genomics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Takehiro Takashima
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Tzu-Wen Yeh
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Motoi Yamashita
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Mari Tanaka-Kubota
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Satoshi Miyamoto
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Noriko Mitsuiki
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Masatoshi Takagi
- Department of Community Pediatrics, Perinatal and Maternal Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yoshifumi Kawano
- Department of Pediatrics, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Yoshiki Mochizuki
- Laboratory for Integrative Genomics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Kohsuke Imai
- Department of Community Pediatrics, Perinatal and Maternal Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.
| | - Hirokazu Kanegane
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.
| | - Tomohiro Morio
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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Lee CY, Lai TY, Tsai MK, Chang YC, Ho YH, Yu IS, Yeh TW, Chou CC, Lin YS, Lawrence T, Hsu LC. The ubiquitin ligase ZNRF1 promotes caveolin-1 ubiquitination and degradation to modulate inflammation. Nat Commun 2017; 8:15502. [PMID: 28593998 PMCID: PMC5472178 DOI: 10.1038/ncomms15502] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 04/05/2017] [Indexed: 02/07/2023] Open
Abstract
Caveolin-1 (CAV1), the major constituent of caveolae, plays a pivotal role in various cellular biological functions, including cancer and inflammation. The ubiquitin/proteasomal pathway is known to contribute to the regulation of CAV1 expression, but the ubiquitin ligase responsible for CAV1 protein stability remains unidentified. Here we reveal that E3 ubiquitin ligase ZNRF1 modulates CAV1 protein stability to regulate Toll-like receptor (TLR) 4-triggered immune responses. We demonstrate that ZNRF1 physically interacts with CAV1 in response to lipopolysaccharide and mediates ubiquitination and degradation of CAV1. The ZNRF1-CAV1 axis regulates Akt-GSK3β activity upon TLR4 activation, resulting in enhanced production of pro-inflammatory cytokines and inhibition of anti-inflammatory cytokine IL-10. Mice with deletion of ZNRF1 in their hematopoietic cells display increased resistance to endotoxic and polymicrobial septic shock due to attenuated inflammation. Our study defines ZNRF1 as a regulator of TLR4-induced inflammatory responses and reveals another mechanism for the regulation of TLR4 signalling through CAV1.
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Affiliation(s)
- Chih-Yuan Lee
- Institute of Molecular Medicine, National Taiwan University, No. 7 Chung San South Road, Taipei 10002, Taiwan
- Department of Surgery, National Taiwan University Hospital, No. 7 Chung San South Road, Taipei 10002, Taiwan
| | - Ting-Yu Lai
- Institute of Molecular Medicine, National Taiwan University, No. 7 Chung San South Road, Taipei 10002, Taiwan
| | - Meng-Kun Tsai
- Department of Surgery, National Taiwan University Hospital, No. 7 Chung San South Road, Taipei 10002, Taiwan
| | - Yung-Chi Chang
- Institute of Molecular Medicine, National Taiwan University, No. 7 Chung San South Road, Taipei 10002, Taiwan
| | - Yu-Hsin Ho
- Institute of Molecular Medicine, National Taiwan University, No. 7 Chung San South Road, Taipei 10002, Taiwan
| | - I-Shing Yu
- Laboratory Animal Center, College of Medicine, National Taiwan University, No. 7 Chung San South Road, Taipei 10002, Taiwan
| | - Tzu-Wen Yeh
- Institute of Molecular Medicine, National Taiwan University, No. 7 Chung San South Road, Taipei 10002, Taiwan
| | - Chih-Chang Chou
- Institute of Molecular Medicine, National Taiwan University, No. 7 Chung San South Road, Taipei 10002, Taiwan
| | - You-Sheng Lin
- Institute of Molecular Medicine, National Taiwan University, No. 7 Chung San South Road, Taipei 10002, Taiwan
| | - Toby Lawrence
- Institut National de la Santé et de la Recherche Médicale (INSERM), U1104, 13288 Marseille, France
| | - Li-Chung Hsu
- Institute of Molecular Medicine, National Taiwan University, No. 7 Chung San South Road, Taipei 10002, Taiwan
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Tsujita Y, Mitsui-Sekinaka K, Imai K, Yeh TW, Mitsuiki N, Asano T, Ohnishi H, Kato Z, Sekinaka Y, Zaha K, Kato T, Okano T, Takashima T, Kobayashi K, Kimura M, Kunitsu T, Maruo Y, Kanegane H, Takagi M, Yoshida K, Okuno Y, Muramatsu H, Shiraishi Y, Chiba K, Tanaka H, Miyano S, Kojima S, Ogawa S, Ohara O, Okada S, Kobayashi M, Morio T, Nonoyama S. Phosphatase and tensin homolog (PTEN) mutation can cause activated phosphatidylinositol 3-kinase δ syndrome-like immunodeficiency. J Allergy Clin Immunol 2016; 138:1672-1680.e10. [PMID: 27426521 DOI: 10.1016/j.jaci.2016.03.055] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 02/27/2016] [Accepted: 03/16/2016] [Indexed: 11/15/2022]
Abstract
BACKGROUND Activated phosphatidylinositol 3-kinase δ syndrome (APDS) is a recently discovered primary immunodeficiency disease (PID). Excess phosphatidylinositol 3-kinase (PI3K) activity linked to mutations in 2 PI3K genes, PIK3CD and PIK3R1, causes APDS through hyperphosphorylation of AKT, mammalian target of rapamycin (mTOR), and S6. OBJECTIVE This study aimed to identify novel genes responsible for APDS. METHODS Whole-exome sequencing was performed in Japanese patients with PIDs. Immunophenotype was assessed through flow cytometry. Hyperphosphorylation of AKT, mTOR, and S6 in lymphocytes was examined through immunoblotting, flow cytometry, and multiplex assays. RESULTS We identified heterozygous mutations of phosphatase and tensin homolog (PTEN) in patients with PIDs. Immunoblotting and quantitative PCR analyses indicated that PTEN expression was decreased in these patients. Patients with PTEN mutations and those with PIK3CD mutations, including a novel E525A mutation, were further analyzed. The clinical symptoms and immunologic defects of patients with PTEN mutations, including lymphocytic AKT, mTOR, and S6 hyperphosphorylation, resemble those of patients with APDS. Because PTEN is known to suppress the PI3K pathway, it is likely that defective PTEN results in activation of the PI3K pathway. CONCLUSION PTEN loss-of-function mutations can cause APDS-like immunodeficiency because of aberrant PI3K pathway activation in lymphocytes.
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Affiliation(s)
- Yuki Tsujita
- Department of Pediatrics, National Defense Medical College, Saitama, Japan
| | | | - Kohsuke Imai
- Department of Pediatrics, National Defense Medical College, Saitama, Japan; Department of Community Pediatrics, Perinatal and Maternal Medicine, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.
| | - Tzu-Wen Yeh
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Noriko Mitsuiki
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Takaki Asano
- Department of Pediatrics, Hiroshima University Graduate School of Biomedical & Health Sciences, Hiroshima, Japan
| | - Hidenori Ohnishi
- Department of Pediatrics, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Zenichiro Kato
- Department of Pediatrics, Gifu University Graduate School of Medicine, Gifu, Japan; Structural Medicine, United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Gifu, Japan
| | - Yujin Sekinaka
- Department of Pediatrics, National Defense Medical College, Saitama, Japan
| | - Kiyotaka Zaha
- Department of Pediatrics, National Defense Medical College, Saitama, Japan
| | - Tamaki Kato
- Department of Pediatrics, National Defense Medical College, Saitama, Japan
| | - Tsubasa Okano
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Takehiro Takashima
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | | | - Mitsuaki Kimura
- Department of Allergy and Clinical Immunology, Shizuoka Children's Hospital, Shizuoka, Japan
| | - Tomoaki Kunitsu
- Department of Pediatrics, Shiga University of Medical Science, Shiga, Japan
| | - Yoshihiro Maruo
- Department of Pediatrics, Shiga University of Medical Science, Shiga, Japan
| | - Hirokazu Kanegane
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Masatoshi Takagi
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kenichi Yoshida
- Department of Pathology and Tumor Biology, Kyoto University, Kyoto, Japan
| | - Yusuke Okuno
- Department of Pediatrics, Nagoya University Gradual School of Medicine, Nagoya, Japan
| | - Hideki Muramatsu
- Department of Pediatrics, Nagoya University Gradual School of Medicine, Nagoya, Japan
| | - Yuichi Shiraishi
- Laboratory of DNA Information Analysis, Human Genome Center, Institute of Medical Science University of Tokyo, Tokyo, Japan
| | - Kenichi Chiba
- Laboratory of DNA Information Analysis, Human Genome Center, Institute of Medical Science University of Tokyo, Tokyo, Japan
| | - Hiroko Tanaka
- Laboratory of Sequence Analysis, Human Genome Center, Institute of Medical Science University of Tokyo, Tokyo, Japan
| | - Satoru Miyano
- Laboratory of DNA Information Analysis, Human Genome Center, Institute of Medical Science University of Tokyo, Tokyo, Japan; Laboratory of Sequence Analysis, Human Genome Center, Institute of Medical Science University of Tokyo, Tokyo, Japan
| | - Seiji Kojima
- Department of Pediatrics, Nagoya University Gradual School of Medicine, Nagoya, Japan
| | - Seishi Ogawa
- Department of Pathology and Tumor Biology, Kyoto University, Kyoto, Japan
| | - Osamu Ohara
- Department of Technology Development, Kazusa DNA Research Institute, Chiba, Japan
| | - Satoshi Okada
- Department of Pediatrics, Hiroshima University Graduate School of Biomedical & Health Sciences, Hiroshima, Japan
| | - Masao Kobayashi
- Department of Pediatrics, Hiroshima University Graduate School of Biomedical & Health Sciences, Hiroshima, Japan
| | - Tomohiro Morio
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Shigeaki Nonoyama
- Department of Pediatrics, National Defense Medical College, Saitama, Japan
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Horiuchi K, Imai K, Mitsui-Sekinaka K, Yeh TW, Ochs HD, Durandy A, Nonoyama S. Analysis of somatic hypermutations in the IgM switch region in human B cells. J Allergy Clin Immunol 2014; 134:411-9. [DOI: 10.1016/j.jaci.2014.02.043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Revised: 02/06/2014] [Accepted: 02/06/2014] [Indexed: 11/16/2022]
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Lee CY, Lai TY, Yeh TW, Chou CC, Tsai MK, Hsu LC. The use of IKK inhibitor as a lymphocyte depleting agent (47.4). The Journal of Immunology 2012. [DOI: 10.4049/jimmunol.188.supp.47.4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
Purposes: Transcription factor NF-κB and its activating kinase IκB Kinase β (IKKβ) are critical for inflammation and innate immunity. In our previoius report, MLN120B, an IKKβ inhibitor, would cause neutrophilia in mice but their peripheral blood lymphocyte numbers were not affected. We tried other IKK inhibitors; however, we found that feeding with BMS-345541, a highly selective IKKβ inhibitor, would cause lymphopenia in mice. We explored the possibility of BMS-345541 as a therapeutic agent in depleting lymphocytes. Results: To characterize how BMS-345541 affects lymphocyte homeostatsis, C57BL/6 mice received vehicle, or BMS-345541 oral gavage once daily at different dose (10, 25, 50, and 100 mg/kg body weight in 3% Tween 80), and mice were sacrificed on day 3 or day 5. We collected the peripheral blood for blood cell counts and also collected spleen and lymphnodes for histology examination. The lymphocytes, but not neutrophils, were significantly decreased in mice received BMS-345541. Our preliminary results showed that the effect of BMS-345541 on lymphocytes were through apoptosis rather than trapping the lymphocytes in lymphoid organs. BMS-345541 affected both T cells and B cells. Conclusion: We conclude that oral administration of BMS-345541 would reduce lymphocyte counts and could be helpful in depleting lymphocytes in circulation, which would be useful as a therapeutic agent for lymphoproliferative disorder.
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Affiliation(s)
- Chih-Yuan Lee
- 1Surgery, National Taiwan University Hospital, Taipei, Taiwan
- 2Molecular Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Ting-Yu Lai
- 2Molecular Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Tzu-Wen Yeh
- 2Molecular Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Chih-Chung Chou
- 2Molecular Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Meng-Kun Tsai
- 1Surgery, National Taiwan University Hospital, Taipei, Taiwan
| | - Li-Chung Hsu
- 2Molecular Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
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Lee CY, Lai TY, Hsu LC, Yeh TW, Enzler T, Karin M. The role of IL-1β on IKKβ inhibitors induced neutrophilia (116.4). The Journal of Immunology 2011. [DOI: 10.4049/jimmunol.186.supp.116.4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
Transcription factor NF-κB and its activating kinase IκB Kinase β (IKKβ) are critical for inflammation and immunity. Pharmacological inhibitors of IKKβ-NF-κB could be used for the treatment of inflammation. It was unexpected that IKKβ inhibitors (MLN120B) cause neutrophilia in mice but the mechanism remained unknown. IL-1β acted as a growth factor for myeloid progenitors and a survival factor for mature neutrophils. We tried to investigate the role of IL-1β on IKKβ inhibitors induced neutrophilia. Using conditional deletion of loxP-flanked Ikbkb alleles in myeloid cells in mice, we found severe neutrophilia after IKKβ deletion. Without any stimulus, Ikkβ-deleted mice produced more circulating IL-1β than age-matched wild-type mice. Isolated Ikkβ-deleted monocytes and macrophages secreted higher amounts of IL-1β than wild-type controls without stimulation. Treatment of wild-type mice with IKKβ inhibitors also led to neutrophilia within 8 days, which would be prevented by concomitant treatment with IL-1 receptor antagonis. Neutrophilia in mice after deletion of IKKβ seems IL-1β dependent. Excessive IL-1β signaling is responsible for the uncontrolled neutrophilia and inflammation in IKKβ-deleted mice. Enhanced IL-1β production represents a compensatory mechanism for maintaining immunity when NF-κB is inhibited and compensates for loss of NF-κB-dependent antibacterial immunity.
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Affiliation(s)
- Chih-Yuan Lee
- 1Institute of Molecular Medicine, National Taiwan University, Taipei, Taiwan
- 2Department of Surgery, National Taiwan University, Taipei, Taiwan
| | - Ting-Yu Lai
- 1Institute of Molecular Medicine, National Taiwan University, Taipei, Taiwan
| | - Li-Chung Hsu
- 1Institute of Molecular Medicine, National Taiwan University, Taipei, Taiwan
- 3Laboratory of Gene Regulation and Signal Transduction, Department of Pharmacology and Department of Pathology, School of Medicine, University of California, San Diego, CA
| | - Tzu-Wen Yeh
- 1Institute of Molecular Medicine, National Taiwan University, Taipei, Taiwan
| | - Thomas Enzler
- 3Laboratory of Gene Regulation and Signal Transduction, Department of Pharmacology and Department of Pathology, School of Medicine, University of California, San Diego, CA
- 4Department of Hematology and Oncology, Universitaetsmedizin Goettingen, Goettingen, Germany
| | - Michael Karin
- 3Laboratory of Gene Regulation and Signal Transduction, Department of Pharmacology and Department of Pathology, School of Medicine, University of California, San Diego, CA
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Su YM, Cheng TP, Yeh TW, Wen CY, Wang DI. Influence of morning or evening administration on absorption of theophylline. Zhonghua Yi Xue Za Zhi (Taipei) 2000; 63:113-8. [PMID: 10677921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
BACKGROUND Bronchoconstriction during the night causing nocturnal and early morning wheezing is recognized as a major problem for asthmatics. Oral sustained-release theophyllines (SRTs) were developed to reduce the symptoms. A circadian variation in theophylline kinetics has been demonstrated with many SRTs. The purpose of this study was to evaluate the differences in serum theophylline concentration (STC) caused by morning or evening dosing of Euphyllin Retard, a brand of SRT, for a period of 36 hours following oral administration. METHODS A total of nine non-smoking healthy male volunteers were involved in the study, with a two-period crossover comparison. They were randomly divided into two groups. The first group took a single oral dose of 350 mg Euphyllin Retard at 8:00 A.M. and the second group took it at 8:00 P.M. Blood samples were collected during the 36 hours following administration. Two weeks later, the first group took the drug at night and the second group took it in the morning. The difference in the absorption of theophylline with daytime administration versus night-time administration was assessed using pharmacokinetic parameters derived from the plasma drug concentration vs time curve. RESULTS The means of unextrapolated area under the concentration vs time curve (AUC) from time 0 to 24 hours (AUCUN) and of the extrapolated AUC from time 0 to infinity (AUCEX) in the night phase were higher than those in the day phase (62.403 micrograms/ml/hr vs 53.081 micrograms/ml/hr, p = 0.9186; 107.21 micrograms/ml/hr vs 98.879 micrograms/ml/hr, p = 0.8807, respectively). The mean of maximum concentration (Cmax) was higher in the night phase than that in the day phase (4.166 micrograms/dl vs 3.451 micrograms/dl, p = 0.9234). Daytime administration showed a delayed time to maximum concentration (Tmax) when compared to that of night-time administration (6.5 hr vs 5.75 hr, p = 0.6244). The terminal elimination rate constant (Kel) was lower in the day phase than in the night phase (0.053 l/hr vs 0.06 l/hr, p = 0.7601). The day phase and night phase data are combined data from the two night and two day groups. The statistical analysis of the results show that the time of administration does not influence the STC. CONCLUSIONS No diurnal variation in theophylline kinetics was found with Euphyllin Retard. This study was performed in a limited number of normal healthy subjects, and the same result is yet to be proved in asthmatic patients and a larger population of normal subjects.
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Affiliation(s)
- Y M Su
- Department of Internal Medicine, Far Eastern Memorial Hospital, Pan-Chiao, Taipei, Taiwan, ROC
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