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Kamiya C, Iwatani Y, Yoshimoto S, Taniguchi H, Kitabatake Y, Kagitani-Shimono K. Inter-hemispheric somatosensory coherence and parental stress in hypersensitivity at 8 months old: An electroencephalography study. Clin Neurophysiol 2024; 163:185-196. [PMID: 38759514 DOI: 10.1016/j.clinph.2024.04.015] [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] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 04/03/2024] [Accepted: 04/17/2024] [Indexed: 05/19/2024]
Abstract
OBJECTIVE Infant hypersensitivity affects daily challenges and parental stress. Although the crucial role of tactile sensation in infants' brain function has been highlighted, hypersensitive infants and their families lack support. Electroencephalography may be useful for understanding hypersensitivity traits. We investigated the relationship between infant perceptual hypersensitivity and parental stress, somatosensory-evoked potential (SEP), and magnitude-squared coherence (MSC) in the general population. METHODS Infants aged 8 months (n = 63) were evaluated for hypersensitivity and parental stress using a questionnaire and for cortical activity using electroencephalography. Vibration stimuli were applied to the infant's left foot. SEP components that peaked around 150 ms (N2) and at 200 ms (P2) after stimulus onset were evaluated by amplitude and latency at the midline electrode (Cz) and MSC between the midline electrodes (C3-C4). RESULTS Parental stress was associated with infant hypersensitivity. The latency of Cz was delayed, and C3-C4 delta MSC was high in infants with hypersensitivity. CONCLUSIONS Increasing inter-hemispheric MSC synchrony in the stimulated condition in infants with hypersensitivity suggested atypical somatosensory cortical function. SIGNIFICANCE These findings contribute to identifying, understanding the mechanisms of, and developing effective coping strategies for early-stage hypersensitivity.
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Affiliation(s)
- Chiori Kamiya
- Division of Developmental Neuroscience, United Graduate School of Child Development, Osaka University, 2-2, Yamadaoka, Suita City, Osaka Prefecture 565-0871, Japan
| | - Yoshiko Iwatani
- Division of Developmental Neuroscience, United Graduate School of Child Development, Osaka University, 2-2, Yamadaoka, Suita City, Osaka Prefecture 565-0871, Japan; Molecular Research Center for Children's Mental Development, United Graduate School of Child Development, Osaka University, 2-2, Yamadaoka, Suita City, Osaka Prefecture 565-0871, Japan; Department of Pediatrics, Graduate School of Medicine, Osaka University, 2-15, Yamadaoka, Suita City, Osaka Prefecture, 565-0871, Japan
| | - Shunsuke Yoshimoto
- Department of Human and Engineered Environmental Studies, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa City, Chiba Prefecture, Japan
| | - Hidetoshi Taniguchi
- Department of Pediatrics, Graduate School of Medicine, Osaka University, 2-15, Yamadaoka, Suita City, Osaka Prefecture, 565-0871, Japan; Izumi Pediatric and Rehabilitation Clinic, 2-1-1, Higashiyama, Kaizuka City, Osaka Prefecture, Japan
| | - Yasuji Kitabatake
- Department of Pediatrics, Graduate School of Medicine, Osaka University, 2-15, Yamadaoka, Suita City, Osaka Prefecture, 565-0871, Japan
| | - Kuriko Kagitani-Shimono
- Division of Developmental Neuroscience, United Graduate School of Child Development, Osaka University, 2-2, Yamadaoka, Suita City, Osaka Prefecture 565-0871, Japan; Molecular Research Center for Children's Mental Development, United Graduate School of Child Development, Osaka University, 2-2, Yamadaoka, Suita City, Osaka Prefecture 565-0871, Japan; Department of Pediatrics, Graduate School of Medicine, Osaka University, 2-15, Yamadaoka, Suita City, Osaka Prefecture, 565-0871, Japan.
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Hanai A, Ishikawa T, Sugao S, Fujii M, Hirai K, Watanabe H, Matsuzaki M, Nakamoto G, Takeda T, Kitabatake Y, Itoh Y, Endo M, Kimura T, Kawakami E. Explainable Machine Learning Classification to Identify Vulnerable Groups Among Parenting Mothers: Web-Based Cross-Sectional Questionnaire Study. JMIR Form Res 2024; 8:e47372. [PMID: 38324356 PMCID: PMC10882468 DOI: 10.2196/47372] [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] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 12/20/2023] [Accepted: 12/21/2023] [Indexed: 02/08/2024] Open
Abstract
BACKGROUND One life event that requires extensive resilience and adaptation is parenting. However, resilience and perceived support in child-rearing vary, making the real-world situation unclear, even with postpartum checkups. OBJECTIVE This study aimed to explore the psychosocial status of mothers during the child-rearing period from newborn to toddler, with a classifier based on data on the resilience and adaptation characteristics of mothers with newborns. METHODS A web-based cross-sectional survey was conducted. Mothers with newborns aged approximately 1 month (newborn cohort) were analyzed to construct an explainable machine learning classifier to stratify parenting-related resilience and adaptation characteristics and identify vulnerable populations. Explainable k-means clustering was used because of its high explanatory power and applicability. The classifier was applied to mothers with infants aged 2 months to 1 year (infant cohort) and mothers with toddlers aged >1 year to 2 years (toddler cohort). Psychosocial status, including depressed mood assessed by the Edinburgh Postnatal Depression Scale (EPDS), bonding assessed by the Postpartum Bonding Questionnaire (PBQ), and sleep quality assessed by the Pittsburgh Sleep Quality Index (PSQI) between the classified groups, was compared. RESULTS A total of 1559 participants completed the survey. They were split into 3 cohorts, comprising populations of various characteristics, including parenting difficulties and psychosocial measures. The classifier, which stratified participants into 5 groups, was generated from the self-reported scores of resilience and adaptation in the newborn cohort (n=310). The classifier identified that the group with the greatest difficulties in resilience and adaptation to a child's temperament and perceived support had higher incidences of problems with depressed mood (relative prevalence [RP] 5.87, 95% CI 2.77-12.45), bonding (RP 5.38, 95% CI 2.53-11.45), and sleep quality (RP 1.70, 95% CI 1.20-2.40) compared to the group with no difficulties in perceived support. In the infant cohort (n=619) and toddler cohort (n=461), the stratified group with the greatest difficulties had higher incidences of problems with depressed mood (RP 9.05, 95% CI 4.36-18.80 and RP 4.63, 95% CI 2.38-9.02, respectively), bonding (RP 1.63, 95% CI 1.29-2.06 and RP 3.19, 95% CI 2.03-5.01, respectively), and sleep quality (RP 8.09, 95% CI 4.62-16.37 and RP 1.72, 95% CI 1.23-2.42, respectively) compared to the group with no difficulties. CONCLUSIONS The classifier, based on a combination of resilience and adaptation to the child's temperament and perceived support, was able identify psychosocial vulnerable groups in the newborn cohort, the start-up stage of childcare. Psychosocially vulnerable groups were also identified in qualitatively different infant and toddler cohorts, depending on their classifier. The vulnerable group identified in the infant cohort showed particularly high RP for depressed mood and poor sleep quality.
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Affiliation(s)
- Akiko Hanai
- Medical Data Mathematical Reasoning Team, Advanced Data Science Project, RIKEN Information R&D and Strategy Headquarters, RIKEN, Yokohama, Japan
- Artificial Intelligence Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
- Institute for Datability Science, Osaka University, Suita, Japan
| | - Tetsuo Ishikawa
- Medical Data Mathematical Reasoning Team, Advanced Data Science Project, RIKEN Information R&D and Strategy Headquarters, RIKEN, Yokohama, Japan
- Artificial Intelligence Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
- Institute for Datability Science, Osaka University, Suita, Japan
- Department of Extended Intelligence for Medicine, The Ishii-Ishibashi Laboratory, Keio University School of Medicine, Tokyo, Japan
| | - Shoko Sugao
- Graduate School of Human Sciences, Osaka University, Suita, Japan
| | - Makoto Fujii
- Division of Health Sciences, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Kei Hirai
- Graduate School of Human Sciences, Osaka University, Suita, Japan
| | - Hiroko Watanabe
- Division of Health Sciences, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Masayo Matsuzaki
- Department of Reproductive Health Nursing, Graduate School of Health Care Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Goji Nakamoto
- Division of Health Sciences, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Toshihiro Takeda
- Department of Medical Informatics, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Yasuji Kitabatake
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Yuichi Itoh
- Department of Integrated Information Technology, College of Science and Engineering, Aoyama Gakuin University, Sagamihara, Japan
| | - Masayuki Endo
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Tadashi Kimura
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Eiryo Kawakami
- Medical Data Mathematical Reasoning Team, Advanced Data Science Project, RIKEN Information R&D and Strategy Headquarters, RIKEN, Yokohama, Japan
- Artificial Intelligence Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
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3
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Suginobe H, Ishida H, Ishii Y, Ueda K, Yoshihara C, Ueyama A, Wang R, Tsuru H, Hashimoto K, Hirose M, Ishii R, Narita J, Kitabatake Y, Ozono K. Isogenic pairs of induced-pluripotent stem-derived endothelial cells identify DYRK1A/PPARG/EGR1 pathway is responsible for Down syndrome-associated pulmonary hypertension. Hum Mol Genet 2023; 33:78-90. [PMID: 37792788 PMCID: PMC10729858 DOI: 10.1093/hmg/ddad162] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 08/30/2023] [Accepted: 08/30/2023] [Indexed: 10/06/2023] Open
Abstract
Down syndrome (DS) is the most prevalent chromosomal disorder associated with a higher incidence of pulmonary arterial hypertension (PAH). The dysfunction of vascular endothelial cells (ECs) is known to cause pulmonary arterial remodeling in PAH, although the physiological characteristics of ECs harboring trisomy 21 (T21) are still unknown. In this study, we analyzed the human vascular ECs by utilizing the isogenic pairs of T21-induced pluripotent stem cells (iPSCs) and corrected disomy 21 (cDi21)-iPSCs. In T21-iPSC-derived ECs, apoptosis and mitochondrial reactive oxygen species (mROS) were significantly increased, and angiogenesis and oxygen consumption rate (OCR) were significantly impaired as compared with cDi21-iPSC-derived ECs. The RNA-sequencing identified that EGR1 on chromosome 5 was significantly upregulated in T21-ECs. Both EGR1 suppression by siRNA and pharmacological inhibitor could recover the apoptosis, mROS, angiogenesis, and OCR in T21-ECs. Alternately, the study also revealed that DYRK1A was responsible to increase EGR1 expression via PPARG suppression, and that chemical inhibition of DYRK1A could restore the apoptosis, mROS, angiogenesis, and OCR in T21-ECs. Finally, we demonstrated that EGR1 was significantly upregulated in the pulmonary arterial ECs from lung specimens of a patient with DS and PAH. In conclusion, DYRK1A/PPARG/EGR1 pathway could play a central role for the pulmonary EC functions and thus be associated with the pathogenesis of PAH in DS.
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Affiliation(s)
- Hidehiro Suginobe
- Department of Pediatrics, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Hidekazu Ishida
- Department of Pediatrics, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yoichiro Ishii
- Department of Pediatric Cardiology, Osaka Children’s and Women’s Hospital, 840 Murodohcho, Izumi, Osaka 594-1101, Japan
| | - Kazutoshi Ueda
- Department of Pediatrics, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Chika Yoshihara
- Department of Pediatrics, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Atsuko Ueyama
- Department of Pediatrics, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Renjie Wang
- Department of Pediatrics, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Hirofumi Tsuru
- Department of Pediatrics, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
- Department of Pediatrics, Niigata University School of Medicine, 1-757 Asahimachi-dori, chuo-ku, Niigata 951-8510, Japan
| | - Kazuhisa Hashimoto
- Department of Pediatrics, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Masaki Hirose
- Department of Pediatrics, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Ryo Ishii
- Department of Pediatrics, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Jun Narita
- Department of Pediatrics, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yasuji Kitabatake
- Department of Pediatrics, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Keiichi Ozono
- Department of Pediatrics, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
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Yoshimatsu H, Iwai M, Kitabatake Y, Ozono K, Nakamura K. Prediction scores based on neonatal inflammatory markers for chorioamnionitis and funisitis in extremely low gestational age neonates. Acta Paediatr 2023; 112:726-733. [PMID: 36740931 DOI: 10.1111/apa.16701] [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: 10/20/2022] [Revised: 01/24/2023] [Accepted: 02/03/2023] [Indexed: 02/07/2023]
Abstract
AIM The aim of the study was to examine the predictive value of inflammatory markers for chorioamnionitis and funisitis in extremely low gestational age neonates. METHODS According to the Redline histopathological classification, extremely low gestational age neonates were classified into: (1) maternal inflammatory response ≤1 or ≥2, based on inflammatory findings of the placenta and (2) foetal inflammatory response ≤1 or ≥2, based on inflammatory findings of the umbilical cord. On admission and 12-36 h postnatally, procalcitonin and high-sensitivity C-reactive protein levels and white blood cell and neutrophil counts were compared. For both maternal and foetal inflammatory responses ≥2, the predictive value of each inflammatory marker was calculated. RESULTS On admission, procalcitonin had the best predictive value for maternal and foetal inflammatory response ≥2. The maternal inflammatory response ≥2 prediction score includes procalcitonin level on admission, high-sensitivity C-reactive protein level and white blood cell count at 12-36 h postnatally. Foetal inflammatory response ≥2 prediction score includes procalcitonin level and white blood cell count on admission and 12-36 h postnatally. The sensitivities were 96.4% and 96.3%, respectively. CONCLUSION Procalcitonin, high-sensitivity C-reactive protein levels and white blood cell count provide highly sensitive prediction scores for chorioamnionitis and funisitis in extremely low gestational age neonates.
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Affiliation(s)
- Hidetaka Yoshimatsu
- Department of Pediatrics, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan.,Division of Neonatology, Perinatal Center, Kumamoto University Hospital, Kumamoto, Japan.,Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan.,Division of Neonatology, Perinatal Center, Kumamoto City Hospital, Kumamoto, Japan
| | - Masanori Iwai
- Department of Pediatrics, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan.,Division of Neonatology, Perinatal Center, Kumamoto University Hospital, Kumamoto, Japan
| | - Yasuji Kitabatake
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Keiichi Ozono
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Kimitoshi Nakamura
- Department of Pediatrics, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
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5
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Saeki S, Taniguchi H, Arahori H, Kitabatake Y, Ozono K. An International Aircraft Transport of a Neonate From Georgia to Japan. Cureus 2022; 14:e28952. [PMID: 36225492 PMCID: PMC9541845 DOI: 10.7759/cureus.28952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/08/2022] [Indexed: 11/26/2022] Open
Abstract
International air transport over long distances necessitates considerable effort. It is even more challenging when the patient is a neonate and has a congenital disease. We hereby report a case of an international aircraft transport of a neonate from Tbilisi, Georgia to Osaka, Japan. The patient was transported to Osaka University Hospital after being diagnosed with a double outlet right ventricle (DORV), requiring surgical intervention. This unique experience has raised four issues: 1) language issues for referral and consultation; 2) medical equipment and healthcare professionals required to accompany the transport for adequate care; 3) scheduling of the international flight; and 4) the administrative procedures such as birth certificate, passport, and healthcare insurance. In this report, we describe how the patient was successfully transported, received treatment, and discharged home.
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6
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Wakita S, Hara M, Kitabatake Y, Kawatani K, Kurahashi H, Hashizume R. Experimental method for haplotype phasing across the entire length of chromosome 21 in trisomy 21 cells using a chromosome elimination technique. J Hum Genet 2022; 67:565-572. [PMID: 35637312 PMCID: PMC9510051 DOI: 10.1038/s10038-022-01049-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 04/25/2022] [Accepted: 05/12/2022] [Indexed: 11/09/2022]
Abstract
Modern sequencing technologies produce a single consensus sequence without distinguishing between homologous chromosomes. Haplotype phasing solves this limitation by identifying alleles on the maternal and paternal chromosomes. This information is critical for understanding gene expression models in genetic disease research. Furthermore, the haplotype phasing of three homologous chromosomes in trisomy cells is more complicated than that in disomy cells. In this study, we attempted the accurate and complete haplotype phasing of chromosome 21 in trisomy 21 cells. To separate homologs, we established three corrected disomy cell lines (ΔPaternal chromosome, ΔMaternal chromosome 1, and ΔMaternal chromosome 2) from trisomy 21 induced pluripotent stem cells by eliminating one chromosome 21 utilizing the Cre-loxP system. These cells were then whole-genome sequenced by a next-generation sequencer. By simply comparing the base information of the whole-genome sequence data at the same position between each corrected disomy cell line, we determined the base on the eliminated chromosome and performed phasing. We phased 51,596 single nucleotide polymorphisms (SNPs) on chromosome 21, randomly selected seven SNPs spanning the entire length of the chromosome, and confirmed that there was no contradiction by direct sequencing.
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Affiliation(s)
- Sachiko Wakita
- Department of Pathology and Matrix Biology, Mie University Graduate School of Medicine, Mie, Japan
| | - Mari Hara
- Department of Pathology and Matrix Biology, Mie University Graduate School of Medicine, Mie, Japan
| | - Yasuji Kitabatake
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Keiji Kawatani
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan.,Department of Neuroscience, Mayo Clinic, Scottsdale, AZ, USA
| | - Hiroki Kurahashi
- Division of Molecular Genetics, Institute for Comprehensive Medical Science, Fujita Health University, Toyoake, Japan
| | - Ryotaro Hashizume
- Department of Pathology and Matrix Biology, Mie University Graduate School of Medicine, Mie, Japan. .,Department of Genomic Medicine, Mie University Hospital, Mie, Japan.
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7
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Kawatani K, Nambara T, Nawa N, Yoshimatsu H, Kusakabe H, Hirata K, Tanave A, Sumiyama K, Banno K, Taniguchi H, Arahori H, Ozono K, Kitabatake Y. A human isogenic iPSC-derived cell line panel identifies major regulators of aberrant astrocyte proliferation in Down syndrome. Commun Biol 2021; 4:730. [PMID: 34127780 PMCID: PMC8203796 DOI: 10.1038/s42003-021-02242-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 05/18/2021] [Indexed: 12/15/2022] Open
Abstract
Astrocytes exert adverse effects on the brains of individuals with Down syndrome (DS). Although a neurogenic-to-gliogenic shift in the fate-specification step has been reported, the mechanisms and key regulators underlying the accelerated proliferation of astrocyte precursor cells (APCs) in DS remain elusive. Here, we established a human isogenic cell line panel based on DS-specific induced pluripotent stem cells, the XIST-mediated transcriptional silencing system in trisomic chromosome 21, and genome/chromosome-editing technologies to eliminate phenotypic fluctuations caused by genetic variation. The transcriptional responses of genes observed upon XIST induction and/or downregulation are not uniform, and only a small subset of genes show a characteristic expression pattern, which is consistent with the proliferative phenotypes of DS APCs. Comparative analysis and experimental verification using gene modification reveal dose-dependent proliferation-promoting activity of DYRK1A and PIGP on DS APCs. Our collection of human isogenic cell lines provides a comprehensive set of cellular models for further DS investigations. Keiji Kawatani et al. developed a panel of Down syndrome (DS) isogenic astrocytes derived from iPSCs to observe the consequence of DS on astrocyte precursor proliferation, differentiation, and gene expression. Their results suggest a dose-dependent effect of DYRK1A and PIGP on DS-derived astrocyte precursor proliferation, and represent a valuable resource and cellular model for future DS research.
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Affiliation(s)
- Keiji Kawatani
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Toshihiko Nambara
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Nobutoshi Nawa
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Hidetaka Yoshimatsu
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Haruna Kusakabe
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Katsuya Hirata
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan.,Department of Neonatal Medicine, Osaka Women's and Children's Hospital, Izumi, Osaka, Japan
| | - Akira Tanave
- Laboratory for Mouse Genetic Engineering, RIKEN Center for Biosystems Dynamics Research, Suita, Osaka, Japan
| | - Kenta Sumiyama
- Laboratory for Mouse Genetic Engineering, RIKEN Center for Biosystems Dynamics Research, Suita, Osaka, Japan
| | - Kimihiko Banno
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan.,Department of Physiology II, Nara Medical University, Kashihara, Nara, Japan
| | - Hidetoshi Taniguchi
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Hitomi Arahori
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Keiichi Ozono
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Yasuji Kitabatake
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan.
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8
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Yokota C, Kagawa N, Bamba Y, Tazuke Y, Kitabatake Y, Nakagawa T, Hirayama R, Okuyama H, Kishima H. Successful neurosurgical separation of conjoined spinal cords in pygopagus twins: illustrative cases. Journal of Neurosurgery: Case Lessons 2021; 1:CASE218. [PMID: 35854707 PMCID: PMC9241251 DOI: 10.3171/case218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 01/08/2021] [Indexed: 11/06/2022]
Abstract
BACKGROUNDConjoined twins represent a rare congenital malformation. Pygopagus twins are fused at the sacrum and perineum, with union of the spine. The authors report a successful separation of a unique case of pygopagus twins sharing a U-shaped spinal cord, which the authors identified through aberrant nerves by intraoperative physiological spinal root examination.OBSERVATIONSThe 6-month-old male pygopagus conjoined twins, who were diagnosed in the prenatal period, underwent separation. They had a single dural sac containing a U-shaped continuous spinal cord; their filum terminale appeared completely fused and the anatomical border of the spinal cord was not distinguishable. A triggered electromyogram (tEMG) was used on each nerve root to determine which belonged to one twin versus the other, to detect nerve cross, and to identify functional midline cleavage. Finally, the twins were separated after spinal division. Both twins recovered uneventfully with no lower limb neurological deficits or walking impairment for 16 months.LESSONSPygopagus twins with a conjoined spinal cord are very rare, but a good long-term functional prognosis can be expected with successful separation. Intraoperative tEMG is useful in spinal separation surgery for twins with a conjoined spinal cord.
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Affiliation(s)
- Chisato Yokota
- Departments of Neurosurgery,
- Department of Neurosurgery, Suita Municipal Hospital, Suita, Osaka, Japan; and
| | | | - Yohei Bamba
- Departments of Neurosurgery,
- Department of Neurosurgery, Iseikai Hospital, Higashi-yodogawaku, Osaka, Japan
| | | | - Yasuji Kitabatake
- Pediatrics, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
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9
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Itai T, Miyatake S, Taguri M, Nozaki F, Ohta M, Osaka H, Morimoto M, Tandou T, Nohara F, Takami Y, Yoshioka F, Shimokawa S, Okuno-Yuguchi J, Motobayashi M, Takei Y, Fukuyama T, Kumada S, Miyata Y, Ogawa C, Maki Y, Togashi N, Ishikura T, Kinoshita M, Mitani Y, Kanemura Y, Omi T, Ando N, Hattori A, Saitoh S, Kitai Y, Hirai S, Arai H, Ishida F, Taniguchi H, Kitabatake Y, Ozono K, Nabatame S, Smigiel R, Kato M, Tanda K, Saito Y, Ishiyama A, Noguchi Y, Miura M, Nakano T, Hirano K, Honda R, Kuki I, Takanashi JI, Takeuchi A, Fukasawa T, Seiwa C, Harada A, Yachi Y, Higashiyama H, Terashima H, Kumagai T, Hada S, Abe Y, Miyagi E, Uchiyama Y, Fujita A, Imagawa E, Azuma Y, Hamanaka K, Koshimizu E, Mitsuhashi S, Mizuguchi T, Takata A, Miyake N, Tsurusaki Y, Doi H, Nakashima M, Saitsu H, Matsumoto N. Prenatal clinical manifestations in individuals with COL4A1/2 variants. J Med Genet 2020; 58:505-513. [PMID: 32732225 DOI: 10.1136/jmedgenet-2020-106896] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [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: 02/03/2020] [Revised: 05/13/2020] [Accepted: 06/08/2020] [Indexed: 01/16/2023]
Abstract
BACKGROUND Variants in the type IV collagen gene (COL4A1/2) cause early-onset cerebrovascular diseases. Most individuals are diagnosed postnatally, and the prenatal features of individuals with COL4A1/2 variants remain unclear. METHODS We examined COL4A1/2 in 218 individuals with suspected COL4A1/2-related brain defects. Among those arising from COL4A1/2 variants, we focused on individuals showing prenatal abnormal ultrasound findings and validated their prenatal and postnatal clinical features in detail. RESULTS Pathogenic COL4A1/2 variants were detected in 56 individuals (n=56/218, 25.7%) showing porencephaly (n=29), schizencephaly (n=12) and others (n=15). Thirty-four variants occurred de novo (n=34/56, 60.7%). Foetal information was available in 47 of 56 individuals, 32 of whom (n=32/47, 68.1%) had one or more foetal abnormalities. The median gestational age at the detection of initial prenatal abnormal features was 31 weeks of gestation. Only 14 individuals had specific prenatal findings that were strongly suggestive of features associated with COL4A1/2 variants. Foetal ventriculomegaly was the most common initial feature (n=20/32, 62.5%). Posterior fossa abnormalities, including Dandy-Walker malformation, were observed prenatally in four individuals. Regarding extrabrain features, foetal growth restriction was present in 16 individuals, including eight individuals with comorbid ventriculomegaly. CONCLUSIONS Prenatal observation of ventriculomegaly with comorbid foetal growth restriction should prompt a thorough ultrasound examination and COL4A1/2 gene testing should be considered when pathogenic variants are strongly suspected.
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Affiliation(s)
- Toshiyuki Itai
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - Satoko Miyatake
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan.,Clinical Genetics Department, Yokohama City University Hospital, Yokohama, Kanagawa, Japan
| | - Masataka Taguri
- Department of Data Science, Yokohama City University School of Data Science, Yokohama, Kanagawa, Japan
| | - Fumihito Nozaki
- Department of Pediatrics, Shiga Medical Center for Children, Moriyama, Shiga, Japan
| | - Masayasu Ohta
- Department of Pediatrics, JA Toride General Medical Center, Toride, Ibaraki, Japan
| | - Hitoshi Osaka
- Department of Pediatrics, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Masafumi Morimoto
- Division of Pediatrics, Department of Medical Science, School of Nursing, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto, Japan
| | - Tomoko Tandou
- Department of Pediatrics, Yamanashi Prefectural Central Hospital, Kofu, Yamanashi, Japan
| | - Fumikatsu Nohara
- Department of Pediatrics, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Yuichi Takami
- Department of Pediatrics, Japanese Red Cross Society Himeji Hospital, Himeji, Hyogo, Japan
| | | | - Shoko Shimokawa
- Department of Neurosurgery, Saga University, Saga, Saga, Japan
| | - Jiu Okuno-Yuguchi
- Division of Neurology, Nagano Children's Hospital, Azumino, Nagano, Japan
| | - Mitsuo Motobayashi
- Division of Neurology, Nagano Children's Hospital, Azumino, Nagano, Japan
| | - Yuko Takei
- Division of Neurology, Nagano Children's Hospital, Azumino, Nagano, Japan
| | - Tetsuhiro Fukuyama
- Division of Neurology, Nagano Children's Hospital, Azumino, Nagano, Japan
| | - Satoko Kumada
- Department of Neuropediatrics, Tokyo Metropolitan Neurological Hospital, Fuchu, Tokyo, Japan
| | - Yohane Miyata
- Department of Neuropediatrics, Tokyo Metropolitan Neurological Hospital, Fuchu, Tokyo, Japan
| | - Chikako Ogawa
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Yuki Maki
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Noriko Togashi
- Department of Neurology, Miyagi Children's Hospital, Sendai, Miyagi, Japan
| | - Teruyuki Ishikura
- Department of Neurology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Makoto Kinoshita
- Department of Neurology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Yusuke Mitani
- Department of Pediatrics, Kanazawa University Hospital, Kanazawa, Ishikawa, Japan
| | - Yonehiro Kanemura
- Department of Biomedical Research and Innovation, Institute for Clinical Research and Department of Neurosurgery, National Hospital Organization Osaka National Hospital, Osaka, Osaka, Japan
| | - Tsuyoshi Omi
- Department of Pediatrics, Okinawa Nanbu Medical Treatment and Education Center, Naha, Okinawa, Japan
| | - Naoki Ando
- Department of Pediatrics and Neonatology, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Aichi, Japan
| | - Ayako Hattori
- Department of Pediatrics and Neonatology, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Aichi, Japan
| | - Shinji Saitoh
- Department of Pediatrics and Neonatology, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Aichi, Japan
| | - Yukihiro Kitai
- Department of Pediatric Neurology, Bobath Memorial Hospital, Osaka, Osaka, Japan
| | - Satori Hirai
- Department of Pediatric Neurology, Bobath Memorial Hospital, Osaka, Osaka, Japan
| | - Hiroshi Arai
- Department of Pediatric Neurology, Bobath Memorial Hospital, Osaka, Osaka, Japan
| | - Fumihiko Ishida
- Perinatal Center for Maternity and Neonate, Yokohama City University Medical Center, Yokohama, Kanagawa, Japan
| | - Hidetoshi Taniguchi
- Department of Pediatrics, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Yasuji Kitabatake
- Department of Pediatrics, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Keiichi Ozono
- Department of Pediatrics, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Shin Nabatame
- Department of Pediatrics, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Robert Smigiel
- Department of Pediatrics and Rare Disorders, Wroclaw Medical University, Wroclaw, Poland
| | - Mitsuhiro Kato
- Department of Pediatrics, Showa University School of Medicine, Shinagawa-ku, Tokyo, Japan
| | - Koichi Tanda
- Department of Pediatrics, Japanese Red Cross Kyoto Daiichi Hospital, Kyoto, Kyoto, Japan
| | - Yoshihiko Saito
- Department of Child Neurology, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
| | - Akihiko Ishiyama
- Department of Child Neurology, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
| | - Yushi Noguchi
- Division of Pediatrics and Perinatology, Tottori University Faculty of Medicine, Yonago, Tottori, Japan
| | - Mazumi Miura
- Division of Pediatrics and Perinatology, Tottori University Faculty of Medicine, Yonago, Tottori, Japan
| | - Takaaki Nakano
- Department of Neurosurgery, Akiyama Neurosurgical Hospital, Yokohama, Kanagawa, Japan
| | - Keiko Hirano
- Department of Pediatrics, Iwata City Hospital, Iwata, Shizuoka, Japan
| | - Ryoko Honda
- Department of Pediatrics, National Hospital Organisation Nagasaki Medical Center, Omura, Nagasaki, Japan
| | - Ichiro Kuki
- Department of Child Neurology, Osaka City General Hospital, Osaka, Osaka, Japan
| | - Jun-Ichi Takanashi
- Department of Pediatrics, Tokyo Women's Medical University Yachiyo Medical Center, Yachiyo, Chiba, Japan
| | - Akihito Takeuchi
- Division of Neonatology and Neuropediatrics, National Hospital Organization Okayama Medical Center, Okayama, Okayama, Japan
| | - Tatsuya Fukasawa
- Department of Pediatrics, Anjo Kosei Hospital, Anjo, Aichi, Japan
| | - Chizuru Seiwa
- Department of Pediatrics, Yamagata Prefectural Rehabilitation Center for Children with Disabilities, Kaminoyama, Yamagata, Japan
| | - Atsuko Harada
- Department of Pediatric Neurosurgery, Takatsuki General Hospital, Takatsuki, Osaka, Japan
| | - Yusuke Yachi
- Department of Pediatrics, Toyama Prefectural Central Hospital, Toyama, Toyama, Japan
| | - Hiroyuki Higashiyama
- Department of Pediatrics, Toyama Prefectural Central Hospital, Toyama, Toyama, Japan
| | - Hiroshi Terashima
- Division of Neurology, National Center for Child Health and Development, Setagaya-ku, Tokyo, Japan
| | - Tadayuki Kumagai
- Division of Neurology, National Center for Child Health and Development, Setagaya-ku, Tokyo, Japan
| | - Satoshi Hada
- Department of Neonatology, Hiroshima Prefectural Hospital, Hiroshima, Hiroshima, Japan
| | - Yoshiichi Abe
- Department of Pediatrics, Oita University Faculty Of Medicine, Yufu, Oita, Japan
| | - Etsuko Miyagi
- Department of Obstetrics and Gynecology, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - Yuri Uchiyama
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan.,Department of Oncology, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - Atsushi Fujita
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - Eri Imagawa
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - Yoshiteru Azuma
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - Kohei Hamanaka
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - Eriko Koshimizu
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - Satomi Mitsuhashi
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - Takeshi Mizuguchi
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - Atsushi Takata
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - Noriko Miyake
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - Yoshinori Tsurusaki
- Faculty of Nutritional Science, Sagami Women's University, Sagamihara, Kanagawa, Japan
| | - Hiroshi Doi
- Department of Neurology and Stroke Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - Mitsuko Nakashima
- Department of Biochemistry, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Hirotomo Saitsu
- Department of Biochemistry, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Naomichi Matsumoto
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
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10
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Mimura K, Endo M, Takahashi A, Doi Y, Sakuragi M, Kiyokawa T, Taniguchi H, Kitabatake Y, Handa M, Tomimatsu T, Tomiyama Y, Isaka Y, Kimura T. Successful management of fetal hemolytic disease due to strong anti-Rh17 with plasma exchange and intrauterine transfusion in a woman with the D-- phenotype. Int J Hematol 2019; 111:149-154. [PMID: 31538326 DOI: 10.1007/s12185-019-02735-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 02/08/2019] [Revised: 09/09/2019] [Accepted: 09/12/2019] [Indexed: 11/24/2022]
Abstract
The rare blood phenotype D-- is characterized by the absence of RhCcEe antigens. Women with this blood type who have experienced previous pregnancies may produce anti-Rh17 antibodies, which may cause severe fetal hemolytic anemia or fetal death in subsequent pregnancies. We report successful management of a pregnancy associated with fetal hemolytic disease owing to high titers of anti-Rh17 (1:4096) in a woman with a history of a pregnancy with fetal hydrops and intrauterine fetal death. During her second pregnancy, she received two sets of plasma exchange (PE) per week from weeks 12 till 20. Intrauterine transfusions (IUTs) were performed at 26, 27, 29, and 31 weeks. A male infant was born at 32 weeks and 4 days by normal vaginal delivery, with a birth weight of 1916 g (+ 0.16 SD). He received an exchange transfusion on day 0, immunoglobulin (intravenous immunoglobulin: 1 g/kg) on days 0 and 1, and photo therapy from days 0 to 6. He showed normal development without neurological abnormality and was discharged from the hospital on day 36. We successfully prevented complications caused by the presence of anti-Rh17 antibodies in the mother during pregnancy. The IUT and maternal PE may have promoted this favorable outcome.
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Affiliation(s)
- Kazuya Mimura
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka, 565-0871, Japan. .,Center for Fetal Diagnosis and Treatment, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.
| | - Masayuki Endo
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka, 565-0871, Japan.,Center for Fetal Diagnosis and Treatment, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Atsushi Takahashi
- Department of Nephrology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Yohei Doi
- Department of Nephrology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Mikiko Sakuragi
- Department of Blood Transfusion, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Tomoko Kiyokawa
- Department of Blood Transfusion, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Hidetoshi Taniguchi
- Department of Pediatrics, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Yasuji Kitabatake
- Center for Fetal Diagnosis and Treatment, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.,Department of Pediatrics, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Mika Handa
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Takuji Tomimatsu
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Yoshiaki Tomiyama
- Department of Blood Transfusion, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Yoshitaka Isaka
- Department of Nephrology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Tadashi Kimura
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka, 565-0871, Japan
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11
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Nawa N, Hirata K, Kawatani K, Nambara T, Omori S, Banno K, Kokubu C, Takeda J, Nishimura K, Ohtaka M, Nakanishi M, Okuzaki D, Taniguchi H, Arahori H, Wada K, Kitabatake Y, Ozono K. Elimination of protein aggregates prevents premature senescence in human trisomy 21 fibroblasts. PLoS One 2019; 14:e0219592. [PMID: 31356639 PMCID: PMC6663065 DOI: 10.1371/journal.pone.0219592] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 06/27/2019] [Indexed: 12/12/2022] Open
Abstract
Chromosome abnormalities induces profound alterations in gene expression, leading to various disease phenotypes. Recent studies on yeast and mammalian cells have demonstrated that aneuploidy exerts detrimental effects on organismal growth and development, regardless of the karyotype, suggesting that aneuploidy-associated stress plays an important role in disease pathogenesis. However, whether and how this effect alters cellular homeostasis and long-term features of human disease are not fully understood. Here, we aimed to investigate cellular stress responses in human trisomy syndromes, using fibroblasts and induced pluripotent stem cells (iPSCs). Dermal fibroblasts derived from patients with trisomy 21, 18 and 13 showed a severe impairment of cell proliferation and enhanced premature senescence. These phenomena were accompanied by perturbation of protein homeostasis, leading to the accumulation of protein aggregates. We found that treatment with sodium 4-phenylbutyrate (4-PBA), a chemical chaperone, decreased the protein aggregates in trisomy fibroblasts. Notably, 4-PBA treatment successfully prevented the progression of premature senescence in secondary fibroblasts derived from trisomy 21 iPSCs. Our study reveals aneuploidy-associated stress as a potential therapeutic target for human trisomies, including Down syndrome.
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Affiliation(s)
- Nobutoshi Nawa
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Katsuya Hirata
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
- Department of Neonatal Medicine, Osaka Women’s and Children’s Hospital, Izumi, Osaka, Japan
| | - Keiji Kawatani
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Toshihiko Nambara
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Sayaka Omori
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Kimihiko Banno
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
| | - Chikara Kokubu
- Department of Genome Biology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Junji Takeda
- Department of Genome Biology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Ken Nishimura
- Laboratory of Gene Regulation, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Manami Ohtaka
- Biotechnology Research Institute for Drug Discovery, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan
| | - Mahito Nakanishi
- Biotechnology Research Institute for Drug Discovery, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan
| | - Daisuke Okuzaki
- Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
| | - Hidetoshi Taniguchi
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Hitomi Arahori
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Kazuko Wada
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
- Department of Neonatal Medicine, Osaka Women’s and Children’s Hospital, Izumi, Osaka, Japan
| | - Yasuji Kitabatake
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
- * E-mail:
| | - Keiichi Ozono
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
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12
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Nakano C, Kitabatake Y, Takeyari S, Ohata Y, Kubota T, Taketani K, Kogo M, Ozono K. Genetic correction of induced pluripotent stem cells mediated by transcription activator-like effector nucleases targeting ALPL recovers enzyme activity and calcification in vitro. Mol Genet Metab 2019; 127:158-165. [PMID: 31178256 DOI: 10.1016/j.ymgme.2019.05.014] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 05/25/2019] [Accepted: 05/25/2019] [Indexed: 01/22/2023]
Abstract
Hypophosphatasia (HPP) is an inheritable disease affecting both skeletal systems and extra-skeletal organs due to mutations of the gene ALPL, which encodes tissue-nonspecific alkaline phosphatase. Recently, an enzyme replacement therapy using asfotase alfa was developed to ameliorate the complications of HPP. However, it requires frequent injections and is expensive to maintain. As an alternative, cell and gene therapy using human induced pluripotent stem cells (iPSCs) after precise correction of the mutation is feasible due to advances in genome-editing technology. In the study, we examined the alkaline phosphatase (ALP) activity and calcification in vitro of two childhood HPP patient-derived iPSCs after the correction of the c.1559delT mutation, which is the most frequent mutation in Japanese patients with HPP, using transcription activator-like effector nucleases (TALENs). The gene correction targeting vector was designed for site-directed mutagenesis using TALEN. After selection with antibiotics, some clones with the selection cassette were obtained. Gene correction was confirmed by Sanger sequencing. The mutation was corrected in one allele of ALPL in homozygous patients and compound heterozygous patients. The correction of ALPL did not result in an increase in ALP when the selection cassette remained. Conversely, iPSCs exhibited ALP activity after the elimination of the cassette using Cre/LoxP. The quantitative analysis showed the half ALP activity in corrected iPSCs of that of control iPSCs, corresponding to heterozygous correction of the mutation. In addition, osteoblasts differentiated from the corrected iPSCs exhibited high ALP activity and some calcification in vitro. Moreover, the osteoblast-like phenotype was confirmed by increased expression of osteoblast-specific genes such as COL1A1 and osteocalcin. These results suggest that gene correction in iPSCs may be a candidate treatment for HPP patients.
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Affiliation(s)
- Chiho Nakano
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan; Unit of Dentistry, Osaka University Hospital, Osaka, Japan
| | - Yasuji Kitabatake
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Shinji Takeyari
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yasuhisa Ohata
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Takuo Kubota
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Ken Taketani
- Department of Pediatrics, Shimane University, Osaka, Japan
| | - Mikihiko Kogo
- Department of Oral and Maxillofacial Surgery, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Keiichi Ozono
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan.
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13
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Banno K, Omori S, Hirata K, Nawa N, Nakagawa N, Nishimura K, Ohtaka M, Nakanishi M, Sakuma T, Yamamoto T, Toki T, Ito E, Yamamoto T, Kokubu C, Takeda J, Taniguchi H, Arahori H, Wada K, Kitabatake Y, Ozono K. Systematic Cellular Disease Models Reveal Synergistic Interaction of Trisomy 21 and GATA1 Mutations in Hematopoietic Abnormalities. Cell Rep 2016; 15:1228-41. [PMID: 27134169 DOI: 10.1016/j.celrep.2016.04.031] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2015] [Revised: 12/22/2015] [Accepted: 04/04/2016] [Indexed: 11/25/2022] Open
Abstract
Chromosomal aneuploidy and specific gene mutations are recognized early hallmarks of many oncogenic processes. However, the net effect of these abnormalities has generally not been explored. We focused on transient myeloproliferative disorder (TMD) in Down syndrome, which is characteristically associated with somatic mutations in GATA1. To better understand functional interplay between trisomy 21 and GATA1 mutations in hematopoiesis, we constructed cellular disease models using human induced pluripotent stem cells (iPSCs) and genome-editing technologies. Comparative analysis of these engineered iPSCs demonstrated that trisomy 21 perturbed hematopoietic development through the enhanced production of early hematopoietic progenitors and the upregulation of mutated GATA1, resulting in the accelerated production of aberrantly differentiated cells. These effects were mediated by dosage alterations of RUNX1, ETS2, and ERG, which are located in a critical 4-Mb region of chromosome 21. Our study provides insight into the genetic synergy that contributes to multi-step leukemogenesis.
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Affiliation(s)
- Kimihiko Banno
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Sayaka Omori
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan; Japan Society for the Promotion of Science, Chiyoda-ku, Tokyo 102-0083, Japan
| | - Katsuya Hirata
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Nobutoshi Nawa
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Natsuki Nakagawa
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Ken Nishimura
- Laboratory of Gene Regulation, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Manami Ohtaka
- Biotechnology Research Institute for Drug Discovery, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8562, Japan
| | - Mahito Nakanishi
- Biotechnology Research Institute for Drug Discovery, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8562, Japan
| | - Tetsushi Sakuma
- Department of Mathematical and Life Sciences, Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan
| | - Takashi Yamamoto
- Department of Mathematical and Life Sciences, Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan
| | - Tsutomu Toki
- Department of Pediatrics, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori 036-8562, Japan
| | - Etsuro Ito
- Department of Pediatrics, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori 036-8562, Japan
| | - Toshiyuki Yamamoto
- Institute for Integrated Medical Sciences, Tokyo Women's Medical University, Shinjuku-ku, Tokyo 162-8666, Japan
| | - Chikara Kokubu
- Department of Genome Biology, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Junji Takeda
- Department of Genome Biology, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Hidetoshi Taniguchi
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Hitomi Arahori
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Kazuko Wada
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yasuji Kitabatake
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan; Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012, Japan.
| | - Keiichi Ozono
- Department of Pediatrics, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
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14
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Fujiwara M, Kubota T, Wang W, Ohata Y, Miura K, Kitaoka T, Okuzaki D, Namba N, Michigami T, Kitabatake Y, Ozono K. Successful induction of sclerostin in human-derived fibroblasts by 4 transcription factors and its regulation by parathyroid hormone, hypoxia, and prostaglandin E2. Bone 2016; 85:91-8. [PMID: 26851122 DOI: 10.1016/j.bone.2016.01.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [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: 09/28/2015] [Revised: 12/28/2015] [Accepted: 01/12/2016] [Indexed: 11/28/2022]
Abstract
Sclerostin, coded by SOST, is a secretory protein that is specifically expressed in osteocytes and suppresses osteogenesis by inhibiting WNT signaling. The regulatory mechanism underlying SOST expression remains unclear mainly due to the absence of an adequate human cell model. Thus, we herein attempted to establish a cell model of human dermal fibroblasts in order to investigate the functions of sclerostin. We selected 20 candidate transcription factors (TFs) that induce SOST expression by analyzing gene expression patterns in the human sarcoma cell line, SaOS-2, between differentiation and maintenance cultures using microarrays. An effective set of TFs to induce SOST expression was sought by their viral transduction into fibroblasts, and a combination of four TFs: ATF3, KLF4, PAX4, and SP7, was identified as the most effective inducer of SOST expression. Quantitative PCR demonstrated that the expression levels of SOST in fibroblasts treated with the 4 TFs were 199- and 1439-fold higher than those of the control after 1-week and 4-week cultures, respectively. The level of sclerostin in the conditioned medium, as determined by ELISA, was 21.2pmol/l 4weeks after the transduction of the 4 TFs. Interestingly, the production of Dickkopf1 (DKK1), another secreted inhibitor of WNT signaling, was also increased by transduction of these 4 TFs. Parathyroid hormone (PTH) significantly suppressed the induced SOST by 38% and sclerostin by 82% that of the vehicle. Hypoxia increased the induced SOST by 62% that of normoxia. Furthermore, prostaglandin E2 (PGE2) increased SOST expression levels to 16-fold those of the vehicle. In conclusion, the efficient induction of SOST expression and sclerostin production was achieved in human dermal fibroblasts by the transduction of ATF3, KLF4, PAX4, and SP7, and the induced SOST and sclerostin were regulated by PTH, hypoxia, and PGE2. This model may contribute to elucidating the regulatory mechanisms underlying SOST expression and advancing drug development for metabolic bone diseases.
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Affiliation(s)
- Makoto Fujiwara
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka 565-0871, Japan; First Department of Oral and Maxillofacial Surgery, Osaka University Graduate School of Dentistry, Osaka 565-0871, Japan
| | - Takuo Kubota
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka 565-0871, Japan
| | - Wei Wang
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka 565-0871, Japan
| | - Yasuhisa Ohata
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka 565-0871, Japan
| | - Kohji Miura
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka 565-0871, Japan
| | - Taichi Kitaoka
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka 565-0871, Japan
| | - Daisuke Okuzaki
- DNA-chip Development Center for Infectious Diseases, Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Noriyuki Namba
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka 565-0871, Japan; Department of Pediatrics, JCHO Osaka Hospital, Osaka 553-0003, Japan
| | - Toshimi Michigami
- Department of Bone and Mineral Research, Osaka Medical Center and Research Institute for Maternal and Child Health, Osaka 594-1101, Japan
| | - Yasuji Kitabatake
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka 565-0871, Japan
| | - Keiichi Ozono
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka 565-0871, Japan.
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15
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Kitabatake Y, Wakabayashi C, Nobuhara H, Sakai H. The relationship exercise habits and sleep in community-dwelling people. J Sci Med Sport 2014. [DOI: 10.1016/j.jsams.2014.11.372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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16
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Jang MH, Kitabatake Y, Kang E, Jun H, Pletnikov MV, Christian KM, Hen R, Lucae S, Binder EB, Song H, Ming GI. Secreted frizzled-related protein 3 (sFRP3) regulates antidepressant responses in mice and humans. Mol Psychiatry 2013; 18. [PMID: 23207650 PMCID: PMC3970729 DOI: 10.1038/mp.2012.158] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- M-H Jang
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Neurologic Surgery, Department of Biochemistry and Molecular Biology, Mayo College of Medicine, Rochester, MN, USA
| | - Y Kitabatake
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Pediatrics, Osaka University School of Medicine, Osaka, Japan
| | - E Kang
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Pre-doctoral Program in Human Genetics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - H Jun
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - MV Pletnikov
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Psychiatry, Johns Hopkins University School of Medicine, Baltimore, MD, USA,The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - KM Christian
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - R Hen
- Department of Psychiatry, Columbia University, New York, NY, USA,The New York State Psychiatric Institute, New York, NY, USA
| | - S Lucae
- Max Planck Institute of Psychiatry, Munich, Germany
| | - EB Binder
- Max Planck Institute of Psychiatry, Munich, Germany,Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, USA
| | - H Song
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Pre-doctoral Program in Human Genetics, Johns Hopkins University School of Medicine, Baltimore, MD, USA,The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - G-I Ming
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA,The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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17
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Koyama S, Tomimatsu T, Sawada K, Kanagawa T, Isobe A, Taniguchi Y, Wada T, Kimura T, Arahori H, Kitabatake Y, Wada K. Prenatal diagnosis of fetal intracranial hemorrhage in pregnancy complicated by idiopathic thrombocytopenic purpura. Prenat Diagn 2010; 30:489-91. [PMID: 20440739 DOI: 10.1002/pd.2518] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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18
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Ma DK, Jang MH, Guo JU, Kitabatake Y, Chang ML, Pow-Anpongkul N, Flavell RA, Lu B, Ming GL, Song H. Neuronal activity-induced Gadd45b promotes epigenetic DNA demethylation and adult neurogenesis. Science 2009; 323:1074-7. [PMID: 19119186 DOI: 10.1126/science.1166859] [Citation(s) in RCA: 698] [Impact Index Per Article: 46.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The mammalian brain exhibits diverse types of neural plasticity, including activity-dependent neurogenesis in the adult hippocampus. How transient activation of mature neurons leads to long-lasting modulation of adult neurogenesis is unknown. Here we identify Gadd45b as a neural activity-induced immediate early gene in mature hippocampal neurons. Mice with Gadd45b deletion exhibit specific deficits in neural activity-induced proliferation of neural progenitors and dendritic growth of newborn neurons in the adult hippocampus. Mechanistically, Gadd45b is required for activity-induced DNA demethylation of specific promoters and expression of corresponding genes critical for adult neurogenesis, including brain-derived neurotrophic factor and fibroblast growth factor. Thus, Gadd45b links neuronal circuit activity to epigenetic DNA modification and expression of secreted factors in mature neurons for extrinsic modulation of neurogenesis in the adult brain.
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Affiliation(s)
- Dengke K Ma
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, 733 North Broadway, Baltimore, MD 21205, USA.
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19
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Kamiya A, Kitabatake Y, Sawa A. [Neurodevelopmental disturbance in the pathogenesis of major mental disorders]. Brain Nerve 2008; 60:445-452. [PMID: 18421986] [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: 05/26/2023]
Abstract
Neurodevelopmental disturbance may underlie the pathogenesis of major mental disorders, including autism and schizophrenia, based on evidence in epidemiology, clinical psychiatry, brain imaging, and neuropathology. This notion is further supported by the fact that many of genetic susceptibility factors for these disorders have key roles in neurodevelopment. Majority of these genetic factors, such as Neuroligins, SHANK3, Neureglin-1, Dysbindin, and Disrupted-in-Schizophrenia-1 (DISC1) are associated with "synapse." Therefore, "synapse" is one of the most promising sites of convergence in regard to molecular pathways for these mental conditions. In this review, we will summarize the updates of schizophrenia and autism research, with an emphasis on neurodevelopmental disturbances.
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Affiliation(s)
- Atsushi Kamiya
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 600 N Wolfe Street, CMSC 9-120, Baltimore MD 21287, USA
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20
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Duan X, Chang JH, Ge S, Faulkner RL, Kim JY, Kitabatake Y, Liu XB, Yang CH, Jordan JD, Ma DK, Liu CY, Ganesan S, Cheng HJ, Ming GL, Lu B, Song H. Disrupted-In-Schizophrenia 1 regulates integration of newly generated neurons in the adult brain. Cell 2007; 130:1146-58. [PMID: 17825401 PMCID: PMC2002573 DOI: 10.1016/j.cell.2007.07.010] [Citation(s) in RCA: 441] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2007] [Revised: 05/03/2007] [Accepted: 07/06/2007] [Indexed: 01/08/2023]
Abstract
Adult neurogenesis occurs throughout life in discrete regions of the adult mammalian brain. Little is known about the mechanism governing the sequential developmental process that leads to integration of new neurons from adult neural stem cells into the existing circuitry. Here, we investigated roles of Disrupted-In-Schizophrenia 1 (DISC1), a schizophrenia susceptibility gene, in adult hippocampal neurogenesis. Unexpectedly, downregulation of DISC1 leads to accelerated neuronal integration, resulting in aberrant morphological development and mispositioning of new dentate granule cells in a cell-autonomous fashion. Functionally, newborn neurons with DISC1 knockdown exhibit enhanced excitability and accelerated dendritic development and synapse formation. Furthermore, DISC1 cooperates with its binding partner NDEL1 in regulating adult neurogenesis. Taken together, our study identifies DISC1 as a key regulator that orchestrates the tempo of functional neuronal integration in the adult brain and demonstrates essential roles of a susceptibility gene for major mental illness in neuronal development, including adult neurogenesis.
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Affiliation(s)
- Xin Duan
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, 733 N. Broadway, Baltimore, MD 21205, USA
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21
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Abstract
The discovery of active adult neurogenesis in mammals, a process of generating functional neurons from neural stem cells, suggests that the adult brain is more dynamic than once imagined. The coincidence of this phenomenon occurring in the hippocampus, a region critical to the learning process, begs the question of whether adult neurogenesis is involved in memory formation. Here, the authors review rapidly accumulating evidence showing a strong correlation between certain types of memory functions and adult neurogenesis in the hippocampus. Establishment of the potential link between memory formation and adult neurogenesis is instrumental, at a basic science level, to understand the function of neural networks and is essential, at a clinical level, to develop effective therapies for various cognitive dysfunctions.
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22
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Ge S, Goh EL, Sailor KA, Kitabatake Y, Ming GL, Song H. GABA regulates synaptic integration of newly generated neurons in the adult brain. Nature 2005; 439:589-93. [PMID: 16341203 PMCID: PMC1420640 DOI: 10.1038/nature04404] [Citation(s) in RCA: 951] [Impact Index Per Article: 50.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2005] [Accepted: 11/08/2005] [Indexed: 01/19/2023]
Abstract
Adult neurogenesis, the birth and integration of new neurons from adult neural stem cells, is a striking form of structural plasticity and highlights the regenerative capacity of the adult mammalian brain. Accumulating evidence suggests that neuronal activity regulates adult neurogenesis and that new neurons contribute to specific brain functions. The mechanism that regulates the integration of newly generated neurons into the pre-existing functional circuitry in the adult brain is unknown. Here we show that newborn granule cells in the dentate gyrus of the adult hippocampus are tonically activated by ambient GABA (gamma-aminobutyric acid) before being sequentially innervated by GABA- and glutamate-mediated synaptic inputs. GABA, the major inhibitory neurotransmitter in the adult brain, initially exerts an excitatory action on newborn neurons owing to their high cytoplasmic chloride ion content. Conversion of GABA-induced depolarization (excitation) into hyperpolarization (inhibition) in newborn neurons leads to marked defects in their synapse formation and dendritic development in vivo. Our study identifies an essential role for GABA in the synaptic integration of newly generated neurons in the adult brain, and suggests an unexpected mechanism for activity-dependent regulation of adult neurogenesis, in which newborn neurons may sense neuronal network activity through tonic and phasic GABA activation.
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Affiliation(s)
| | | | | | | | | | - Hongjun Song
- Correspondence should be addressed to: Hongjun Song Institute for Cell Engineering, Departments of Neurology and Neuroscience, Johns Hopkins University School of Medicine, 733 N. Broadway, BRB735, Baltimore, MD 21205, USA; Tel: 443-287-7499; Fax: 410-614-9568; E-mail:
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23
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Yamamoto M, Wada N, Kitabatake Y, Watanabe D, Anzai M, Yokoyama M, Teranishi Y, Nakanishi S. Reversible suppression of glutamatergic neurotransmission of cerebellar granule cells in vivo by genetically manipulated expression of tetanus neurotoxin light chain. J Neurosci 2003; 23:6759-67. [PMID: 12890769 PMCID: PMC6740723] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023] Open
Abstract
We developed a novel technique that allowed reversible suppression of glutamatergic neurotransmission in the cerebellar network. We generated two lines of transgenic mice termed Tet and TeNT mice and crossed the two transgenic lines to produce the Tet/TeNT double transgenic mice. In the Tet mice, the tetracycline-controlled reverse activator (rtTA) was expressed selectively in cerebellar granule cells by the promoter function of the GABA(A) receptor alpha6 subunit gene. In the TeNT mice, the fusion gene of tetanus neurotoxin light chain (TeNT) and enhanced green fluorescent protein (EGFP) was designed to be induced by the interaction of doxycycline (DOX)-activated rtTA with the tetracycline-responsive promoter. The Tet/TeNT mice grew normally even after DOX treatment and exhibited a restricted DOX-dependent expression of TeNT in cerebellar granule cells. Along with this expression, TeNT proteolytically cleaved the synaptic vesicle protein VAMP2 (also termed synaptobrevin2) and reduced glutamate release from granule cells. Both cleavage of VAMP2/synaptobrevin2 and reduction of glutamate release were reversed by removal of DOX. Among the four genotypes generated by heterozygous crossing of Tet and TeNT mice, only Tet/TeNT mice showed DOX-dependent reversible motor impairments as analyzed with fixed bar and rota-rod tests. Reversible suppression of glutamatergic neurotransmission thus can be manipulated with spatiotemporal accuracy by DOX treatment and removal. These transgenic mice will serve as an animal model to study the cerebellar function in motor coordination and learning.
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Affiliation(s)
- Mutsuya Yamamoto
- Mitsubishi Pharma Corporation, Discovery Technology Laboratory, Yokohama, 227-0033, Japan.
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24
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Kitabatake Y, Hikida T, Watanabe D, Pastan I, Nakanishi S. Impairment of reward-related learning by cholinergic cell ablation in the striatum. Proc Natl Acad Sci U S A 2003; 100:7965-70. [PMID: 12802017 PMCID: PMC164696 DOI: 10.1073/pnas.1032899100] [Citation(s) in RCA: 93] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The striatum in the basal ganglia-thalamocortical circuitry is a key neural substrate that is implicated in motor balance and procedural learning. The projection neurons in the striatum are dynamically modulated by nigrostriatal dopaminergic input and intrastriatal cholinergic input. The role of intrastriatal acetylcholine (ACh) in learning behaviors, however, remains to be fully clarified. In this investigation, we examine the involvement of intrastriatal ACh in different categories of learning by selectively ablating the striatal cholinergic neurons with use of immunotoxin-mediated cell targeting. We show that selective ablation of cholinergic neurons in the striatum impairs procedural learning in the tone-cued T-maze memory task. Spatial delayed alternation in the T-maze learning test is also impaired by cholinergic cell elimination. In contrast, the deficit in striatal ACh transmission has no effect on motor learning in the rota-rod test or spatial learning in the Morris water-maze test or on contextual- and tone-cued conditioning fear responses. We also report that cholinergic cell elimination adaptively up-regulates nicotinic ACh receptors not only within the striatum but also in the cerebral cortex and substantia nigra. The present investigation indicates that cholinergic modulation in the local striatal circuit plays a pivotal role in regulation of neural circuitry involving reward-related procedural learning and working memory.
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Affiliation(s)
- Yasuji Kitabatake
- Department of Biological Sciences, Kyoto University Faculty of Medicine, Kyoto 606-8501, Japan
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25
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Hikida T, Kitabatake Y, Pastan I, Nakanishi S. Acetylcholine enhancement in the nucleus accumbens prevents addictive behaviors of cocaine and morphine. Proc Natl Acad Sci U S A 2003; 100:6169-73. [PMID: 12721372 PMCID: PMC156344 DOI: 10.1073/pnas.0631749100] [Citation(s) in RCA: 125] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Drug addiction poses serious social, medical, and economic problems, but effective treatments for drug addiction are still limited. Cocaine and morphine elevate dopamine levels in the nucleus accumbens (NAc), and the overwhelming actions of dopamine are implicated in reinforcement and addiction of abusive drugs. In our previous studies, we reported the regulatory role of acetylcholine (ACh) in the NAc function by selectively ablating the NAc cholinergic neurons with use of immunotoxin-mediated cell targeting. These studies indicated that ACh and dopamine acted convergently but oppositely on the NAc circuit and that cholinergic cell ablation enhanced long-lasting behavioral changes of cocaine addiction. In this investigation, we showed that immunotoxin-mediated ablation of the NAc cholinergic neurons enhanced not only the sensitivity to morphine in conditioned place preference but also negative reinforcement of morphine withdrawal in conditioned place aversion. Remarkably, acetylcholinesterase (AChE) inhibitors that act on the brain AChE suppressed both cocaine- and morphine-induced conditioned place preference and blocked the induction and persistence of cocaine-evoked hyperlocomotion. Importantly, this inhibition was abolished by ablation of the NAc cholinergic neurons. These results demonstrate that centrally active AChE inhibitors prevent long-lasting behavioral abnormalities associated with cocaine and morphine addictions by potentiating the actions of ACh released from the NAc cholinergic neurons. Centrally active AChE inhibitors could thus be approached as novel and potential therapeutic agents for drug addiction.
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Affiliation(s)
- Takatoshi Hikida
- Department of Biological Sciences, Kyoto University Faculty of Medicine, Japan
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Hikida T, Kaneko S, Isobe T, Kitabatake Y, Watanabe D, Pastan I, Nakanishi S. Increased sensitivity to cocaine by cholinergic cell ablation in nucleus accumbens. Proc Natl Acad Sci U S A 2001; 98:13351-4. [PMID: 11606786 PMCID: PMC60874 DOI: 10.1073/pnas.231488998] [Citation(s) in RCA: 86] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Chronic exposure to cocaine causes long-lasting behavioral changes associated with cocaine reinforcement and addiction. An important neural substrate for cocaine addiction is the nucleus accumbens (NAc), which receives dopaminergic input from the ventral tegmental area. Although the neural circuit of the NAc is controlled by several other neurotransmitters, their involvement in cocaine addiction remains elusive. In this investigation, we ablated cholinergic interneurons from the adult NAc with immunotoxin-mediated cell targeting and examined the role of acetylcholine transmitter in adaptive behavioral changes associated with cocaine reinforcement and addiction. Acute exposure to cocaine induced abnormal rotation in unilaterally cholinergic cell-eliminated mice. This abnormal turning was enhanced by repeated exposure of cocaine. In bilaterally cholinergic cell-eliminated mice, chronic cocaine administration induced a prominent and progressive increase in locomotor activity. Moreover, these mice showed robust conditioned place preference with a lower dose of cocaine, compared with wild-type littermates. This investigation demonstrates that acetylcholine in the NAc plays a key role in both acute and chronic actions of cocaine.
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Affiliation(s)
- T Hikida
- Department of Biological Sciences, Faculty of Medicine, Kyoto University, Kyoto 606-8501, Japan
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27
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Egawa K, Oida Y, Kitabatake Y, Maie H, Mano T, Iwase S, Miwa C. Postural modulation of soleus H-reflex under simulated hypogravity by head-out water immersion in humans. Environ Med 2000; 44:117-20. [PMID: 12353528] [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: 04/19/2023]
Abstract
To test our hypothesis that somatosensory inputs would influence postural modulation of soleus H-reflex, eleven subjects were investigated under the head-out water immersion (HOWI) conditions. Subjects were supine or standing on a tilting bed in each condition. They were instructed to maintain an upright posture with both legs. The water was filled to the subject's neck level in a test tank to reduce 95% of the gravitational effect by buoyancy. Surface electromyography of the soleus and tibialis anterior was measured. The soleus H-reflex was elicited at a stimulation intensity of 1.05 times the motor threshold. The recruitment profile of the motor response was unchanged between the conditions. The background activities of the soleus and tibialis anterior were not detected in any condition. The peak-to-peak amplitude of the H-reflex was significantly different between the conditions while the stimulation intensity (small M size) was not different. The soleus H-reflex during standing was significantly decreased compared with being supine in the control condition, whereas it did not in the HOWI condition. It was concluded that somatosensory inputs due to gravity exert an influence on postural modulation of the soleus H-reflex to maintain static posture in humans.
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Affiliation(s)
- K Egawa
- Motor Control Laboratory, Physical Fitness Research Institute, Meiji Life Foundation of Health and Welfare, Hachioji, Tokyo, Japan.
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28
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Oida Y, Arao T, Nishijima Y, Kitabatake Y, Nagamatsu T, Ichigi A, Ebashi H, Maeda A. [Development of a functional fitness test for the elderly]. Nihon Koshu Eisei Zasshi 1996; 43:196-208. [PMID: 8991496] [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: 05/22/2023]
Abstract
A test of functional fitness defined as physical capacity to independently perform daily functional activities was developed for aged persons. The functional fitness test was composed of four physical capacity evaluation tasks representing physical abilities necessary to perform main activities of daily living; viz. sitting and standing up test, zig-zag walking test, hand working test with pegboard for dexterity evaluation, and rope working test for self-care evaluation. The reliability and feasibility of the test were examined with 765 aged persons living in the community. The distribution of measurement values in each item showed neither extreme skewness nor kurtosis. Retest reliabilities for each task were 0.857 to 0.942, but the second trial showed significantly reduced (p < 0.001) values than the first trial in test-retest. Significant relationships (r = 0.503 to 0.627) between measurement values in each items and chronological age were found in both male and female. Functional fitness test and physical fitness test scores were correlated 0.740. These results showed that the functional fitness test developed in the present study has a high reliability and feasibility to evaluate functional capacity of daily living in aged persons.
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Affiliation(s)
- Y Oida
- Meiji Health and Physical Fitness Research Institute
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