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Kurihara M, Hayakawa J, Sugihara J, Takeshita H, Narazaki H, Migita M. Wiskott-Aldrich syndrome diagnosed after cellulitis at the BCG vaccination site. Pediatr Int 2023; 65:e15681. [PMID: 37888485 DOI: 10.1111/ped.15681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 09/07/2023] [Accepted: 09/12/2023] [Indexed: 10/28/2023]
Affiliation(s)
- Mami Kurihara
- Department of Pediatrics, Nippon Medical School Musashikosugi Hospital, Kanagawa, Japan
| | - Jun Hayakawa
- Department of Pediatrics, Nippon Medical School Musashikosugi Hospital, Kanagawa, Japan
| | - Junya Sugihara
- Department of Pediatrics, Nippon Medical School Musashikosugi Hospital, Kanagawa, Japan
| | - Hikaru Takeshita
- Department of Pediatrics, Nippon Medical School Musashikosugi Hospital, Kanagawa, Japan
| | - Hidehiko Narazaki
- Department of Pediatrics, Nippon Medical School Hospital, Tokyo, Japan
| | - Makoto Migita
- Department of Pediatrics, Nippon Medical School Musashikosugi Hospital, Kanagawa, Japan
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2
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Kawabata H, Tamura T, Tamai S, Fujibayashi A, Sugimura M, Hayakawa J, Oku H, Ota Y, Nishiguchi S, Yamada K, Nomura M, Mizutani T, Tamura Y, Amemiya K, Urabe M, Henmi H, Aisaka K, Fujito A, Oku M, Tei C, Kawata A, Hirose M, Yoshioka M, Nishizawa C, Horiguchi I, Hirai K, Tanabe A, Yoshida S, Umezawa Y, Kashiwazaki Y, Kamegai H, Saito T, Naritaka K, Yamauchi S, Akazawa K, Kobiki K, Tsujioka H, Sumi Y, Matsumoto R, Kiuchi M, Utsugisawa Y, Maruyama M, Furumoto H, Minegishi K, Takane M, Yoshii A, Yokokura T, Hanashi H, Yukawa S. Correction to: Intravenous ferric derisomaltose versus saccharated ferric oxide for iron deficiency anemia associated with menorrhagia: a randomized, open-label, active-controlled, noninferiority study. Int J Hematol 2022; 116:976-977. [DOI: 10.1007/s12185-022-03485-8] [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: 11/11/2022]
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3
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Ito-Muramatsu A, Fukuyama M, Hayakawa J, Ohyama M. Long-term remission of unusual plasmoacanthoma on the nasal canthus achieved by intralesional corticosteroid injection: Insights into the pathogenesis and treatment planning based on a literature review. J Dermatol 2021; 48:1081-1085. [PMID: 33739545 DOI: 10.1111/1346-8138.15852] [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: 01/12/2021] [Revised: 02/22/2021] [Accepted: 02/26/2021] [Indexed: 11/28/2022]
Abstract
Plasmoacanthoma (PA) is a verrucous tumor predominantly developing on periorificial areas, which has been considered as an unusual subtype of plasmacytosis circumorificialis. Because of its rarity and clinical resemblance to several verrucous dermatological disorders, accurate diagnosis of PA is quite challenging. Herein, we present an extremely unusual case of PA which arose on both sides of the nasal canthus and was successfully treated with intralesional corticosteroid injections. To elucidate clinicopathological features of this condition, a literature review was also attempted. A 78-year-old woman visited us with a 2-year history of eruptions affecting both sides of the nasal canthus. At a local clinic, the diagnosis and treatment had been unsuccessful due to non-specific histological findings, leading to the referral to our institute. On physical examination, verrucous and lobulated reddish plaques were observed. In histology, psoriasiform epidermal change and dense plasma cell infiltration in the dermis were detected. The diagnosis of PA was made. After 5-monthly intralesional triamcinolone acetonide injections, the lesions became hardly noticeable with no evidence of recurrence. A literature review found five PA cases. PA predominantly arose on the periorificial area, mostly in or around the mouth, except one case which developed on the extra-oral or perioral area. Intralesional corticosteroid injection has been preferably performed, which frequently achieved successful remission. Chronic inflammation has been reported as a preceding condition. Abundance of plasma cells in the lacrimal glands and conjunctiva, together with pre-existing allergic conjunctivitis and habitual scratching, might have contributed to PA development in our case. Histopathological detection of psoriasiform epidermal change and dense dermal plasma cell infiltration is indispensable for the diagnosis of PA. For accurate diagnosis, optimization of treatment, and further accumulation of extra-oral/perioral PA cases, a skin biopsy needs to be proactively performed on verrucous lesions on relatively unfamiliar orifice sites.
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Affiliation(s)
- Aria Ito-Muramatsu
- Department of Dermatology, Kyorin University Faculty of Medicine, Tokyo, Japan
| | - Masahiro Fukuyama
- Department of Dermatology, Kyorin University Faculty of Medicine, Tokyo, Japan
| | - Jun Hayakawa
- Department of Dermatology, Kyorin University Faculty of Medicine, Tokyo, Japan
| | - Manabu Ohyama
- Department of Dermatology, Kyorin University Faculty of Medicine, Tokyo, Japan
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4
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Hayakawa J, Takakura H, Mizukawa Y, Shiohara T. COVID-19-related cutaneous manifestations associated with multiple drug sensitization as shown by lymphocyte transformation test. J Eur Acad Dermatol Venereol 2020; 34:e779-e781. [PMID: 32810920 PMCID: PMC7461526 DOI: 10.1111/jdv.16878] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/30/2020] [Accepted: 08/11/2020] [Indexed: 11/29/2022]
Affiliation(s)
- J Hayakawa
- Division of Dermatology, Kosei Hospital, Tokyo, Japan
| | - H Takakura
- Division of Respiratory medicine, Kosei Hospital, Tokyo, Japan
| | - Y Mizukawa
- Division of Dermatology, Kosei Hospital, Tokyo, Japan.,Department of Dermatology, Kyorin University School of Medicine, Tokyo, Japan
| | - T Shiohara
- Division of Dermatology, Kosei Hospital, Tokyo, Japan.,Department of Dermatology, Kyorin University School of Medicine, Tokyo, Japan
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Hayakawa J, Masuko T, Takehana T, Suzuki T. Genetic and Antigenic Characterization and Retrospective Surveillance of Bovine Influenza D Viruses Identified in Hokkaido, Japan from 2018 to 2020. Viruses 2020; 12:v12080877. [PMID: 32796617 PMCID: PMC7472347 DOI: 10.3390/v12080877] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 08/06/2020] [Accepted: 08/10/2020] [Indexed: 12/19/2022] Open
Abstract
Influenza D virus (IDV), which is a new member of the Orthomyxoviridae family, is potentially involved in bovine respiratory diseases (BRDs). Bovine IDVs (BIDVs) from Japan have been distributed nationwide since 2010 and are genetically distinct from foreign IDVs. We isolated BIDVs from three BRD outbreaks, in Hokkaido during 2018–2020, to understand their genetic and antigenic characteristics. Retrospective surveillance was performed using sera collected throughout the last decade in Hokkaido to investigate BIDV existence. Three BIDVs were isolated using cell culture. Comparative and phylogenetic analyses using sequence data of the three BIDVs and IDVs from Japan and other countries available in GenBank demonstrated that Japanese BIDVs, including the three BIDV isolates, were genetically distinct from other IDVs. Genotype classifications based on the rotavirus genotype classification revealed multiple genotypes of RNA segments 1–7. Two BIDVs were of a new genotype, different from those of other Japanese BIDVs. Neutralization assays against two BIDVs with different genotypes using sera collected in acute and recovery phases of BRD revealed differences in cross-reactivity to heterogenous BIDVs. Retrospective surveillance suggested that BIDV existed in Hokkaido, in 2009. Our findings suggest that BIDVs of different genotypes and antigenicity are distributed and maintained in Hokkaido and provide new insights into molecular characteristics and the evolution of IDVs.
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Affiliation(s)
- Jun Hayakawa
- Hokkaido Abashiri Livestock Hygiene Service Centre, Kitami, Hokkaido 090-0008, Japan; (J.H.); (T.M.); (T.T.)
| | - Tomomi Masuko
- Hokkaido Abashiri Livestock Hygiene Service Centre, Kitami, Hokkaido 090-0008, Japan; (J.H.); (T.M.); (T.T.)
| | - Tae Takehana
- Hokkaido Abashiri Livestock Hygiene Service Centre, Kitami, Hokkaido 090-0008, Japan; (J.H.); (T.M.); (T.T.)
| | - Tohru Suzuki
- Division of Pathology and Pathophysiology, Hokkaido Research Station, National Institute of Animal Health, NARO, Sapporo, Hokkaido 062-0045, Japan
- Correspondence: ; Tel.: +81-11-851-2132; Fax: +81-11-853-0767
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Aozasa N, Miyazaki M, Hayakawa J, Tamaki T, Hamaguchi Y, Sato S, Asano Y. Case of systemic sclerosis with multiple primary malignancies in whom anti-RNA polymerase III antibody was detected by immunoprecipitation. J Dermatol 2020; 47:e269-e270. [PMID: 32415760 DOI: 10.1111/1346-8138.15383] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Naohiko Aozasa
- Department of Dermatology, Faculty of Medicine, University of Tokyo, Tokyo, Japan.,Department of Dermatology, Kosei General Hospital, Tokyo, Japan.,Department of Dermatology, Center Hospital of the National Center for Global Health and Medicine, Tokyo, Japan
| | - Miki Miyazaki
- Department of Dermatology, Faculty of Medicine, University of Tokyo, Tokyo, Japan
| | - Jun Hayakawa
- Department of Dermatology, Kosei General Hospital, Tokyo, Japan
| | - Takeshi Tamaki
- Department of Dermatology, Center Hospital of the National Center for Global Health and Medicine, Tokyo, Japan
| | - Yasuhito Hamaguchi
- Department of Dermatology, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Shinichi Sato
- Department of Dermatology, Faculty of Medicine, University of Tokyo, Tokyo, Japan
| | - Yoshihide Asano
- Department of Dermatology, Faculty of Medicine, University of Tokyo, Tokyo, Japan
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7
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Uchimura R, Ueda T, Fukazawa R, Hayakawa J, Ohashi R, Nagi-Miura N, Ohno N, Migita M, Itoh Y. Adipose tissue-derived stem cells suppress coronary arteritis of Kawasaki disease in vivo. Pediatr Int 2020; 62:14-21. [PMID: 31758839 DOI: 10.1111/ped.14062] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 03/11/2019] [Revised: 08/06/2019] [Accepted: 09/30/2019] [Indexed: 01/08/2023]
Abstract
BACKGROUND Kawasaki disease (KD) is a systemic inflammatory disease resulting in an acute febrile syndrome commonly affecting children younger than 5 years. Coronary arteritis in KD is occasionally non-responsive to several treatments. Recently, adipose tissue-derived stem cells (ADSCs) have been shown to have anti-inflammatory, immunosuppressive, and tissue-repair characteristics and are considered a useful treatment for inflammatory disease. The present study aimed to elucidate whether the administration of ADSCs can suppress KD-associated vasculitis in vivo. METHODS Candida albicans water-soluble fraction is often used to model KD via the induction of severe coronary arteritis. Kawasaki disease model mice were intravenously administered ADSCs and phosphate-buffered saline (PBS). On day 29, the mice were sacrificed and hearts from mice in each group were dissected. This was followed by serum collection. Cardiac tissue sections were subjected to histopathological examination to evaluate the inflammatory area. The levels of pro-inflammatory cytokines in the serum were analyzed at days 15 and 29. The survival rates of both groups were compared. RESULTS The mean inflammatory area in coronary arteritis was significantly lower in the ADSC group compared to the PBS group (P < 0.01). Furthermore, the levels of pro-inflammatory cytokines, such as IL-1β, IL-12, IL-17, RANTES, INF-γ, and TNF-α, in the ADSC group were significantly lower than those in the PBS group. Moreover, the ADSC group had a significantly higher survival rate than the PBS group. CONCLUSIONS These findings highlight that ADSCs have anti-inflammatory and immune regulatory functions that could provide novel cell-based therapeutic strategies for severe KD.
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Affiliation(s)
- Ryoichi Uchimura
- Department of Pediatrics, Nippon Medical School, Sendagi, Tokyo, Japan
| | - Takahiro Ueda
- Department of Pediatrics, Nippon Medical School, Sendagi, Tokyo, Japan
| | - Ryuji Fukazawa
- Department of Pediatrics, Nippon Medical School, Sendagi, Tokyo, Japan
| | - Jun Hayakawa
- Department of Pediatrics, Nippon Medical School, Sendagi, Tokyo, Japan
| | - Ryuji Ohashi
- Department of Pathology, Nippon Medical School, Sendagi, Tokyo, Japan
| | - Noriko Nagi-Miura
- Laboratory for Immunopharmacology of Microbial Products, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, Japan
| | - Naohito Ohno
- Laboratory for Immunopharmacology of Microbial Products, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, Japan
| | - Makoto Migita
- Department of Pediatrics, Nippon Medical School, Sendagi, Tokyo, Japan
| | - Yasuhiko Itoh
- Department of Pediatrics, Nippon Medical School, Sendagi, Tokyo, Japan
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Ueda T, Migita M, Itabashi T, Tanabe Y, Uchimura R, Gocho Y, Yamanishi M, Kobayashi F, Yoshino M, Fujita A, Yamanishi S, Kaizu K, Hayakawa J, Asano T, Maeda M, Itoh Y. Therapy-related Secondary Malignancy After Treatment of Childhood Malignancy: Cases from a Single Center. J NIPPON MED SCH 2019; 86:207-214. [DOI: 10.1272/jnms.jnms.2018_86-401] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | - Mio Yoshino
- Department of Pediatrics, Nippon Medical School
| | - Atsushi Fujita
- Department of Pediatrics, Nippon Medical School Chiba Hokusoh Hospital
| | | | | | | | - Takeshi Asano
- Department of Pediatrics, Nippon Medical School Chiba Hokusoh Hospital
| | - Miho Maeda
- Department of Pediatrics, Nippon Medical School
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Tsujii N, Nishide A, Hayakawa J, Mori T. Observation of enhanced thermopower due to spin fluctuation in weak itinerant ferromagnet. Sci Adv 2019; 5:eaat5935. [PMID: 30801005 PMCID: PMC6386555 DOI: 10.1126/sciadv.aat5935] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 01/11/2019] [Indexed: 05/27/2023]
Abstract
Increasing demand for higher energy efficiency calls for waste heat recovery technology. Thus, facilitating practical thermoelectric generation systems is strongly desired. One option is enhancing the thermoelectric power factor, S 2/r, where S is the Seebeck coefficient and r is the electrical resistivity, although it is still challenging because of the trade-off between S and r. We demonstrate that enhanced S 2/r can be achieved by incorporating magnetic interaction in ferromagnetic metals via the spin fluctuation arising from itinerant electrons. We show that electron-doped Heusler alloys exhibit weak ferromagnetism at T C near room temperature with a small magnetic moment. A pronounced enhancement around T C was observed, with a 20% improvement in the power factor from the case where spin fluctuation is suppressed by applying magnetic field. This result supports the merit of using spin fluctuation to further enhance thermoelectric properties and the potential to further probe correlations and synergy between magnetic and thermoelectric fields.
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Affiliation(s)
- Naohito Tsujii
- International Center for Materials Nanoarchitectonics (MANA) and Center for Functional Sensor & Actuator (CFSN), National Institute for Materials Science, Tsukuba, Ibaraki 305-0047, Japan
| | - Akinori Nishide
- Center for Exploratory Research, Research & Development Group, Hitachi Ltd., Akanuma 2520, Hatoyama-machi, Hiki-gun, Saitama 350-0395, Japan
| | - Jun Hayakawa
- Center for Exploratory Research, Research & Development Group, Hitachi Ltd., Akanuma 2520, Hatoyama-machi, Hiki-gun, Saitama 350-0395, Japan
| | - Takao Mori
- International Center for Materials Nanoarchitectonics (MANA) and Center for Functional Sensor & Actuator (CFSN), National Institute for Materials Science, Tsukuba, Ibaraki 305-0047, Japan
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Nitta K, Kano Y, Ushigome Y, Hayakawa J, Shiohara T. Two Cases of Acute Febrile Neutrophilic Dermatosis Thought to be Caused by Topical Clindamycin. Acta Derm Venereol 2019; 99:228-229. [PMID: 30176042 DOI: 10.2340/00015555-3019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Kiriko Nitta
- Department of Dermatology, Kyorin University School of Medicine, 6-20-2 Shinkawa Mitaka, Tokyo 181-8611, Japan.
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Murata S, Takeuchi Y, Yamanaka K, Hayakawa J, Yoshida M, Yokokawa R, Wakana A, Sawata M, Tanaka Y. Safety and Immunogenicity of the Quadrivalent HPV Vaccine in Japanese Boys: a Phase 3, Open-Label Study. Jpn J Infect Dis 2019; 72:299-305. [DOI: 10.7883/yoken.jjid.2018.448] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Nakamoto K, Hayakawa J, Kawamura T, Kodama M, Yamada H, Kitagawa T, Watanabe Y. Data on species list and the amount of macrophytes and mobile epi-benthic invertebrates in a subtropical seagrass-seaweed mixed bed in Ishigaki Island, Japan. Data Brief 2018; 19:2442-2444. [PMID: 30229117 PMCID: PMC6141488 DOI: 10.1016/j.dib.2018.07.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 07/09/2018] [Accepted: 07/10/2018] [Indexed: 11/30/2022] Open
Abstract
In April 2014 and 2015, field samplings were conducted in a subtropical seagrass-seaweed mixed bed in Ishigaki Island, southwest Japan in order to collect macrophytes and mobile epi-benthic invertebrates. This article describes macrophyte biomass of 16 species or groups and invertebrate abundance of 66 species or groups. This data is associated with “Phylogenetically diverse macrophyte community promotes species diversity of mobile epi-benthic invertebrates” (Nakamoto et al., 2018) [1]
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Affiliation(s)
- Kenta Nakamoto
- International Coastal Research Center, Atmosphere and Ocean Research Institute, The University of Tokyo, 2-106-1, Akahama, Otsuchi, Iwate 028-1102, Japan
| | - Jun Hayakawa
- International Coastal Research Center, Atmosphere and Ocean Research Institute, The University of Tokyo, 2-106-1, Akahama, Otsuchi, Iwate 028-1102, Japan
| | - Tomohiko Kawamura
- International Coastal Research Center, Atmosphere and Ocean Research Institute, The University of Tokyo, 2-106-1, Akahama, Otsuchi, Iwate 028-1102, Japan
| | - Masafumi Kodama
- International Coastal Research Center, Atmosphere and Ocean Research Institute, The University of Tokyo, 2-106-1, Akahama, Otsuchi, Iwate 028-1102, Japan
| | - Hideaki Yamada
- Seikai National Fisheries Research Institute, Japan Fisheries Research and Education Agency, 1551-8, Taira-machi, Nagasaki, Nagasaki 851-2213, Japan
| | - Takashi Kitagawa
- International Coastal Research Center, Atmosphere and Ocean Research Institute, The University of Tokyo, 2-106-1, Akahama, Otsuchi, Iwate 028-1102, Japan
| | - Yoshiro Watanabe
- Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba 277-8564, Japan
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Hayakawa J, Wang M, Wang C, Han RH, Jiang ZY, Han X. Lipidomic analysis reveals significant lipogenesis and accumulation of lipotoxic components in ob/ob mouse organs. Prostaglandins Leukot Essent Fatty Acids 2018; 136:161-169. [PMID: 28110829 PMCID: PMC6203299 DOI: 10.1016/j.plefa.2017.01.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 12/03/2016] [Accepted: 01/03/2017] [Indexed: 12/13/2022]
Abstract
To further understand the role of lipogenesis and lipotoxicity in the development of obesity and diabetes, lipidomes of various organs from ob/ob mice and their wild type controls were analyzed by shotgun lipidomics at 10, 12, and 16 weeks of age. We observed that the amounts of fatty acyl (FA) chains corresponding to those from de novo synthesis (e.g., 16:0, 16:1, and 18:1 FA) were substantially elevated in ob/ob mice, consistent with increased expression of genes and proteins involved in biosynthesis. Polyunsaturated fatty acid species were moderately increased in the examined tissues of ob/ob mice, since they can only be absorbed from diets or elongated from the ingested n-3 or n-6 FA. Different profiles of FA chains between ob/ob mouse liver and skeletal muscle reflect diverging lipogenesis pathways in these organs. Amounts of vaccenic acids (i.e., 18:1(n-7) FA) in 12- and 16-week ob/ob mouse liver were significantly increased compared to their controls, indicating enhanced de novo synthesis of this acid through 16:1(n-7) FA in the liver starting at 12 weeks of age. Coincidentally, synthesis of triacylglycerol from monoacylglycerol in the liver was also increased in ob/ob mice starting at 12 weeks of age, as revealed by simulation of triacylglycerol synthesis. Moreover, levels of lipotoxic lipid classes were significantly higher in ob/ob mice than their age-matched controls, supporting the notion that elevated lipotoxic components are tightly associated with insulin resistance in ob/ob mice. Taken together, the current study revealed that lipogenesis and lipotoxicity in ob/ob mice likely contribute to insulin resistance and provides great insights into the underlying mechanisms of diabetes and obesity.
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Affiliation(s)
- Jun Hayakawa
- Center for Metabolic Origins of Disease, Sanford Burnham Prebys Medical Discovery Institute, Orlando, FL 32827, USA
| | - Miao Wang
- Center for Metabolic Origins of Disease, Sanford Burnham Prebys Medical Discovery Institute, Orlando, FL 32827, USA
| | - Chunyan Wang
- Center for Metabolic Origins of Disease, Sanford Burnham Prebys Medical Discovery Institute, Orlando, FL 32827, USA
| | - Rowland H Han
- Center for Metabolic Origins of Disease, Sanford Burnham Prebys Medical Discovery Institute, Orlando, FL 32827, USA
| | - Zhen Y Jiang
- Department of Pharmacology & Experimental Therapeutics, Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, MA 02118, USA
| | - Xianlin Han
- Center for Metabolic Origins of Disease, Sanford Burnham Prebys Medical Discovery Institute, Orlando, FL 32827, USA.
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Nitta K, Hayakawa J, Ohyama M. A case of coxsackie virus-induced acute generalized exanthematous pustulosis with unique periadnexal eosinophilic infiltration. DERMATOL SIN 2018. [DOI: 10.1016/j.dsi.2017.12.001] [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: 10/18/2022] Open
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15
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Shiota R, Morita H, Matsumoto T, Morimoto A, Hayakawa J, Oka M, Kamimori H. Bioanalytical Method for the Determination of Hydroxyproline in Mouse Kidney by High-Performance Liquid Chromatography with Tandem Mass Spectrometric Detection. ANAL SCI 2017; 33:719-722. [PMID: 28603192 DOI: 10.2116/analsci.33.719] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
An analytical method was developed and validated for the measurement of hydroxyproline (Hyp) levels in mouse kidney by high-performance liquid chromatography with tandem mass spectrometric detection (LC/MS/MS) using an analytical column specially designed for the LC/MS/MS analysis for intact amino acids. Tissue hydrolyzed with hydrochloric acid could be directly injected into the LC/MS/MS, as well as separated and detected using the deuterium labelled Hyp as an internal standard. The calibration curve showed good linearity from 5 to 500 nmol/mg of tissue; the precision and accuracy, including within- and between-run, were less than 6% and within 100 ± 6%, respectively.
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Affiliation(s)
| | | | | | | | | | - Masako Oka
- Pharmaceutical Research Division, Shionogi & Co. Ltd
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16
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Haruna T, Soga M, Morioka Y, Imura K, Furue Y, Yamamoto M, Hayakawa J, Deguchi M, Arimura A, Yasui K. The Inhibitory Effect of S-777469, a Cannabinoid Type 2 Receptor Agonist, on Skin Inflammation in Mice. Pharmacology 2017; 99:259-267. [PMID: 28214870 DOI: 10.1159/000455916] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 01/10/2017] [Indexed: 11/19/2022]
Abstract
We investigated the effects of S-777469 (1-[[6-Ethyl-1-[4-fluorobenzyl]-5-methyl-2-oxo-1, 2-dihydropyridine-3-carbonyl]amino]-cyclohexanecarboxylic acid), a novel cannabinoid type 2 receptor (CB2) agonist, on 1-fluoro-2,4-dinitrobenzene (DNFB)-induced ear inflammation and mite antigen-induced dermatitis in mice. The oral administration of S-777469 significantly suppressed DNFB-induced ear swelling in a dose-dependent manner. In addition, S-777469 significantly alleviated mite antigen-induced atopic dermatitis-like skin lesions in NC/Nga mice. A histological analysis revealed that S-777469 significantly reduced the epidermal thickness and the number of mast cells infiltrating skin lesions. We demonstrated that S-777469 inhibited mite antigen-induced eosinophil accumulation in skin lesions and an endogenous CB2 ligand, 2-arachidonoylglycerol (2-AG)-induced eosinophil migration in vitro. Moreover, we confirmed that 2-AG levels significantly increased in skin lesions of mite antigen-induced dermatitis model. Together, these results suggest that S-777469 inhibits skin inflammation in mice by blocking the activities of 2-AG.
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Affiliation(s)
- Takayo Haruna
- Drug Discovery and Disease Research Laboratory,SHIONOGI & Co., Ltd., Osaka, Japan
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Takeda T, Kondo A, Koga S, Hayakawa J, Hayakawa K, Hiramatsu K, Yaegashi N. Effectiveness of ethinylestradiol/drospirenone for premenstrual symptoms in Japanese patients with dysmenorrhea: Open-label pilot study. J Obstet Gynaecol Res 2015; 41:1584-90. [PMID: 26310836 DOI: 10.1111/jog.12774] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [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: 12/26/2014] [Revised: 04/20/2015] [Accepted: 05/08/2015] [Indexed: 11/29/2022]
Abstract
AIM A combined oral contraceptive containing ethinylestradiol 20 µg plus drospirenone 3 mg (EE20 + DRSP) in a 24/4 regimen has been shown to alleviate the symptoms of premenstrual syndrome and premenstrual dysphoric disorder. This study was conducted to evaluate the efficacy of EE20 + DRSP in Japanese patients with premenstrual symptoms. MATERIAL AND METHODS A multicenter, prospective, open-label, single-arm, phase IV study was performed in Japanese women with dysmenorrhea and premenstrual symptoms. They were treated with EE20 + DRSP to alleviate the symptoms of dysmenorrhea for six treatment cycles. Premenstrual symptoms were evaluated using a Premenstrual Symptoms Questionnaire at baseline and after three and six cycles of EE20 + DRSP. The degree of dysmenorrhea was also evaluated using a visual analog scale at baseline and after one, three, and six cycles of EE20 + DRSP. RESULTS Forty-eight patients were treated with EE20 + DRSP. Most of the premenstrual symptoms were alleviated significantly by three and six cycles of EE20 + DRSP treatment. EE20 + DRSP treatment significantly improved the severity of premenstrual symptoms. We also confirmed the effectiveness of EE20 + DRSP for the treatment for dysmenorrhea. CONCLUSION This study showed that EE20 + DRSP could be a useful treatment strategy for premenstrual symptoms in Japanese women.
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Affiliation(s)
- Takashi Takeda
- Division of Women's Health, Research Institute of Traditional Asian Medicine, Kinki University School of Medicine, Osaka-Sayama, Japan.,Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Aoba, Japan
| | - Akiko Kondo
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Aoba, Japan
| | | | | | | | | | - Nobuo Yaegashi
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Aoba, Japan
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18
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Terasako-Saito K, Nakasone H, Tanaka Y, Yamazaki R, Sato M, Sakamoto K, Ishihara Y, Kawamura K, Akahoshi Y, Hayakawa J, Wada H, Harada N, Nakano H, Kameda K, Ugai T, Yamasaki R, Ashizawa M, Kimura SI, Kikuchi M, Tanihara A, Kanda J, Kako S, Nishida J, Kanda Y. Persistence of recipient-derived as well as donor-derived clones of cytomegalovirus pp65-specific cytotoxic T cells long after allogeneic hematopoietic stem cell transplantation. Transpl Infect Dis 2014; 16:930-40. [DOI: 10.1111/tid.12318] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Accepted: 09/14/2014] [Indexed: 11/27/2022]
Affiliation(s)
- K. Terasako-Saito
- Division of Hematology; Saitama Medical Center; Jichi Medical University; Saitama Japan
| | - H. Nakasone
- Division of Hematology; Saitama Medical Center; Jichi Medical University; Saitama Japan
| | - Y. Tanaka
- Division of Hematology; Saitama Medical Center; Jichi Medical University; Saitama Japan
| | - R. Yamazaki
- Division of Hematology; Saitama Medical Center; Jichi Medical University; Saitama Japan
| | - M. Sato
- Division of Hematology; Saitama Medical Center; Jichi Medical University; Saitama Japan
| | - K. Sakamoto
- Division of Hematology; Saitama Medical Center; Jichi Medical University; Saitama Japan
| | - Y. Ishihara
- Division of Hematology; Saitama Medical Center; Jichi Medical University; Saitama Japan
| | - K. Kawamura
- Division of Hematology; Saitama Medical Center; Jichi Medical University; Saitama Japan
| | - Y. Akahoshi
- Division of Hematology; Saitama Medical Center; Jichi Medical University; Saitama Japan
| | - J. Hayakawa
- Division of Hematology; Saitama Medical Center; Jichi Medical University; Saitama Japan
| | - H. Wada
- Division of Hematology; Saitama Medical Center; Jichi Medical University; Saitama Japan
| | - N. Harada
- Division of Hematology; Saitama Medical Center; Jichi Medical University; Saitama Japan
| | - H. Nakano
- Division of Hematology; Saitama Medical Center; Jichi Medical University; Saitama Japan
| | - K. Kameda
- Division of Hematology; Saitama Medical Center; Jichi Medical University; Saitama Japan
| | - T. Ugai
- Division of Hematology; Saitama Medical Center; Jichi Medical University; Saitama Japan
| | - R. Yamasaki
- Division of Hematology; Saitama Medical Center; Jichi Medical University; Saitama Japan
| | - M. Ashizawa
- Division of Hematology; Saitama Medical Center; Jichi Medical University; Saitama Japan
| | - S.-I. Kimura
- Division of Hematology; Saitama Medical Center; Jichi Medical University; Saitama Japan
| | - M. Kikuchi
- Division of Hematology; Saitama Medical Center; Jichi Medical University; Saitama Japan
| | - A. Tanihara
- Division of Hematology; Saitama Medical Center; Jichi Medical University; Saitama Japan
| | - J. Kanda
- Division of Hematology; Saitama Medical Center; Jichi Medical University; Saitama Japan
| | - S. Kako
- Division of Hematology; Saitama Medical Center; Jichi Medical University; Saitama Japan
| | - J. Nishida
- Division of Hematology; Saitama Medical Center; Jichi Medical University; Saitama Japan
| | - Y. Kanda
- Division of Hematology; Saitama Medical Center; Jichi Medical University; Saitama Japan
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19
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Wang M, Hayakawa J, Yang K, Han X. Characterization and quantification of diacylglycerol species in biological extracts after one-step derivatization: a shotgun lipidomics approach. Anal Chem 2014; 86:2146-55. [PMID: 24432906 DOI: 10.1021/ac403798q] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Diacylglycerols (DAGs) are important intermediates of lipid metabolism and cellular signaling. It is well-known that the mass levels of DAG are altered under disease states. Therefore, quantitative analysis of DAGs in biological samples can provide critical information to uncover underlying mechanisms of various cellular functional disorders. Although great efforts on the analysis of individual DAG species have recently been made by utilizing mass spectrometry with or without derivatization, cost-effective and high throughput methodologies for identification and quantification of all DAG species including regioisomers, particularly in an approach of shotgun lipidomics, are still missing. Herein, we described a novel method for directly identifying and quantifying DAG species including regioisomers present in lipid extracts of biological samples after facile one-step derivatization with dimethylglycine based on the principles of multidimensional mass spectrometry-based shotgun lipidomics. The established method provided substantial sensitivity (low limit of quantification at amol/μL), high specificity, and broad linear dynamics range (2500-fold) without matrix effects. By exploiting this novel method, we revealed a 16-fold increase of total DAG mass in the livers of ob/ob mice compared to their wild type controls at 4 months of age (an insulin-resistant state) versus a 5-fold difference between 3 month old mice (with normal insulin). These results demonstrated the importance and power of the method for studying biochemical mechanisms underpinning disease states.
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Affiliation(s)
- Miao Wang
- Diabetes and Obesity Research Center, Sanford-Burnham Medical Research Institute, Orlando, FL 32827
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20
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Hayakawa J, Mizukawa Y, Kurata M, Shiohara T. A syringotropic variant of cutaneous sarcoidosis: Presentation of 3 cases exhibiting defective sweating responses. J Am Acad Dermatol 2013; 68:1016-21. [DOI: 10.1016/j.jaad.2012.11.039] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2012] [Revised: 10/30/2012] [Accepted: 11/08/2012] [Indexed: 10/27/2022]
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21
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Ueda T, Hayakawa J, Yamanishi M, Maeda M, Fukunaga Y. Efficacy of eculizumab in a patient with paroxysmal nocturnal hemoglobinuria requiring transfusions 14 years after a diagnosis in childhood. J NIPPON MED SCH 2013; 80:155-9. [PMID: 23657069 DOI: 10.1272/jnms.80.155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Paroxysmal nocturnal hemoglobinuria (PNH) is a rare, acquired clonal disorder characterized by chronic complement-mediated hemolysis. The humanized anti-C5 antibody eculizumab binds to the C5 protein and suppresses hemolysis by inhibiting C5b-9 generation. Here, we report on a 27-year-old woman who was found to have PNH in 1997 (at 13 years of age), without subsequent transfusions, thrombosis, or renal disorder. She had been experiencing frequent malaise and fatigue and was sometimes unable to participate in social activities. She had also experienced repeated hemolytic episodes due to infection, and the hemoglobin level had decreased from 7.0 to 5.0 g/dL several times since February 2010. Red blood cell transfusion was necessary, and 6 months later, treatment with eculizumab was started. The hemoglobin level stabilized, and the patient became transfusion-independent. Furthermore, the patient showed significant improvements in fatigue scale scores and quality of life. Six months after the start of eculizumab therapy, the percentage of PNH-type red blood cells was found to have increased from 82.0% (1.95 × 10(12) cells/L) to 89.1% (2.78 × 10(12) cells/L). Furthermore, during treatment with eculizumab, intravascular hemolysis occurred due to a viral infection accompanied by a high fever. We also observed a persistent elevation in reticulocytes and total bilirubin levels, as well as a persistent reduction in haptoglobin levels. Extravascular hemolytic findings were also observed. Because treatment with eculizumab was started at a young age (27 years) and will be continued for many years, careful observation of the patient is required.
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Affiliation(s)
- Takahiro Ueda
- Department of Pediatrics, Nippon Medical School, Tokyo, Japan.
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22
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Hayakawa J, Ueda T, Fujiwara Y, Ozaki Y, Wakita S, Maeda M, Fukunaga Y. Successful coil embolization for life-threatening hemorrhage in childhood leukemia induction therapy. Pediatr Int 2013; 55:248-51. [PMID: 23679168 DOI: 10.1111/j.1442-200x.2012.03682.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An 11-year-old boy was experienced severe life-threatening hemorrhage from a branch of the superior mesenteric artery (SMA) after acute lymphoblastic leukemia induction therapy. The patient had a history of attention deficit hyperactivity disorder (ADHD), diagnosed at 3 years of age. Subsequent to discontinuing his psychotropic medication, the patient's mental status deteriorated and treatment with midazolam for 3 weeks was necessary to allow the completion of the leukemia induction regimen. On day 51, although there was no indication of thrombocytopenia or a coagulation disorder, the patient began to hemorrhage suddenly from anal with resulting hypovolemic shock, and large-volume blood transfusion was initiated. Although upper and lower endoscopy failed to determine the location of the hemorrhage, angiography enabled us to determine that it was a branch of the SMA (the middle colic artery #6), and selective arterial embolization was used to arrest the bleeding. There could have been underlying causes, such as, a probable malformation or aneurysm in that area, although there was no indication before or after the event. This is a rare case of arterial hemorrhage from a branch of the SMA that occurred in a pediatric patient idiopathically during the induction therapy of leukemia.
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Affiliation(s)
- Jun Hayakawa
- Department of Pediatrics, Nippon Medical School, Tokyo, Japan.
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23
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Noda-Seino H, Sawada K, Hayakawa J, Ohyagi-Hara C, Mabuchi S, Takahashi K, Nishio Y, Sakata M, Kurachi H, Kimura T. Estradiol and raloxifene induce the proliferation of osteoblasts through G-protein-coupled receptor GPR30. J Endocrinol Invest 2013; 36:21-7. [PMID: 22453024 DOI: 10.3275/8301] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
BACKGROUND Although G-protein-coupled receptor, GPR30, has been considered as a G-protein-coupled estrogen receptor, conflicting results have been reported and the function of GPR30 in bone remains unresolved. The aim of this study was to clarify the functional role of GPR30 in osteoblasts using its derived cell line. METHODS AND RESULTS Immunohistochemical study revealed that GPR30 is expressed in human osteoblasts. Human fetal osteoblast cell lines, hFOB cells, which express GPR30 but lack estrogen receptor, were used for the in vitro experiments. Estradiol or raloxifene induced the proliferation of hFOB cells, which was accompanied by the activation of mitogen-activated protein (MAP) kinase. Those proliferative effects were completely abrogated by the transfection of GPR30 small interfering RNA, while the transfection alone did not affect the cell viability. CONCLUSION GPR30 is required for the proliferation of hFOB cells induced by estradiol or raloxifene. This proliferative effect was at least partly mediated via MAP kinase activation. These findings revealed a novel function of GPR30 in osteoblasts and might lead to a better understanding of how estrogen and selective estrogen receptor modulators show their osteoprotective effects.
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MESH Headings
- Blotting, Western
- Cell Proliferation/drug effects
- Cells, Cultured
- Estradiol/pharmacology
- Estrogens/pharmacology
- Fetus/cytology
- Fetus/drug effects
- Fetus/metabolism
- Humans
- Immunoenzyme Techniques
- Mitogen-Activated Protein Kinase 1/genetics
- Mitogen-Activated Protein Kinase 1/metabolism
- Mitogen-Activated Protein Kinase 3/genetics
- Mitogen-Activated Protein Kinase 3/metabolism
- Osteoblasts/cytology
- Osteoblasts/drug effects
- Osteoblasts/metabolism
- Proto-Oncogene Proteins c-myc/genetics
- Proto-Oncogene Proteins c-myc/metabolism
- RNA, Messenger/genetics
- RNA, Small Interfering/genetics
- Raloxifene Hydrochloride/pharmacology
- Real-Time Polymerase Chain Reaction
- Receptors, Estrogen/antagonists & inhibitors
- Receptors, Estrogen/genetics
- Receptors, Estrogen/metabolism
- Receptors, G-Protein-Coupled/antagonists & inhibitors
- Receptors, G-Protein-Coupled/genetics
- Receptors, G-Protein-Coupled/metabolism
- Reverse Transcriptase Polymerase Chain Reaction
- Selective Estrogen Receptor Modulators/pharmacology
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Affiliation(s)
- H Noda-Seino
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
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24
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Martí X, Park BG, Wunderlich J, Reichlová H, Kurosaki Y, Yamada M, Yamamoto H, Nishide A, Hayakawa J, Takahashi H, Jungwirth T. Electrical measurement of antiferromagnetic moments in exchange-coupled IrMn/NiFe stacks. Phys Rev Lett 2012; 108:017201. [PMID: 22304281 DOI: 10.1103/physrevlett.108.017201] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2011] [Indexed: 05/31/2023]
Abstract
We employ antiferromagnetic tunneling anisotropic magnetoresistance to study the behavior of antiferromagnetically ordered moments in IrMn exchange coupled to NiFe. Experiments performed by common laboratory tools for magnetization and electrical transport measurements allow us to directly link the broadening of the NiFe hysteresis loop and its shift (exchange bias) to the rotation and pinning of antiferromagnetic moments in IrMn. At higher temperatures, the broadened loops show zero shift, which correlates with the observation of fully rotating antiferromagnetic moments inside the IrMn film. The onset of exchange bias at lower temperatures is linked to a partial rotation between distinct metastable states and pinning of the IrMn antiferromagnetic moments in these states. The observation complements common pictures of exchange bias and reveals an electrically measurable memory effect in an antiferromagnet.
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Affiliation(s)
- X Martí
- Faculty of Mathematics and Physics, Charles University in Prague, Ke Karlovu 3, 121 16 Prague 2, Czech Republic
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25
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Hayakawa J, Kawakami Y, Takeda S, Ozawa H, Fukazawa R, Takase M, Fukunaga Y. A Neonate with Reduced Cytomegalovirus DNA Copy Number and Marked Improvement of Hearing in the Treatment of Congenital Cytomegalovirus Infection. J NIPPON MED SCH 2012; 79:471-7. [DOI: 10.1272/jnms.79.471] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Jun Hayakawa
- Department of Pediatrics, Nippon Medical School Tama Nagayama Hospital
- Department of Pediatrics, Nippon Medical School
| | - Yasuhiko Kawakami
- Department of Pediatrics, Nippon Medical School Tama Nagayama Hospital
| | - Sachiyo Takeda
- Department of Pediatrics, Nippon Medical School Tama Nagayama Hospital
| | - Hiroshi Ozawa
- Department of Pediatrics, Nippon Medical School Tama Nagayama Hospital
- Department of Handicapped Children's Support, Shimada Center for Rehabilitation and Neurodevelopmental Intervention
| | - Ryuji Fukazawa
- Department of Pediatrics, Nippon Medical School Tama Nagayama Hospital
| | - Masato Takase
- Department of Pediatrics, Nippon Medical School Tama Nagayama Hospital
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Nishida S, Fukazawa R, Imai T, Takeda S, Hayakawa J, Takeuchi H, Shimizu K, Kawakami Y, Takase M. Serum KL-6 and surfactant protein D in children with 2009 pandemic H1N1 influenza infection. Pediatr Int 2011; 53:910-4. [PMID: 21605280 DOI: 10.1111/j.1442-200x.2011.03398.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND A global pandemic influenza A (H1N1) outbreak occurred in 2009. Rapid progress of respiratory distress is one of the characteristic features of pandemic influenza A (H1N1) infection. The physiologic mechanism causing hypoxia in pandemic influenza A (H1N1) infection, however, has not been elucidated. METHODS The serum levels of KL-6 and surfactant protein D (SP-D) were evaluated in 21 cases of pandemic influenza A (H1N1) infection associated with chest radiographic abnormality in order to estimate alveolar involvement. The clinical features were also analyzed. RESULTS All of the patients had high fever, and rapidly progressed to respiratory distress within several days of disease onset. Despite mild radiographic abnormality in these patients, dyspnea was severe and they had low blood oxygen saturation levels. Many of the patients had a history of allergic diseases including asthma. Serum KL-6 and SP-D levels on admission were 191 ± 69 U/mL and 32.6 ± 18.9 ng/mL, respectively. These two levels were still below the upper normal limit 1 week later. There were no clear relationships between specific clinical symptoms and KL-6 or SP-D levels. All patients were treated with oseltamivir and/or zanamivir, and improved without mechanical ventilation management. CONCLUSION KL-6 and SP-D elevation were not significant in pandemic influenza A (H1N1) infection associated with chest radiographic abnormality. In pandemic influenza A (H1N1) infection, alveolar involvement was estimated to be little, and severe respiratory distress was probably caused by obstruction of peripheral bronchi.
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Affiliation(s)
- Satoko Nishida
- Department of Pediatrics, Nippon Medical School, Tama-Nagayama Hospital, Tama City, Tokyo, Japan
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Abstract
While sweat is thought to be one of the important factors provoking exacerbations of clinical symptoms in atopic dermatitis (AD), little attention has been drawn to a beneficial role of sweat in the development of AD lesions. However, if the permeability barrier and antimicrobial barrier dysfunction represents the primary event in the development of AD, an evaluation of sweating responses in AD is a logical place to look for changes that predispose to the disease. In this regard, there have been conflicting data regarding whether sweating responses are impaired, normal or enhanced in AD patients. Consistent with the results of most recent studies, our recent study showed that most AD patients exhibit a defective ability to deliver sweat to the skin surface in response to thermal stress. Despite such defective sweating responses observed in the most part, a marked augmentation in the sweating response with delayed kinetics can be paradoxically detected in some sweating glands of these AD patients, indicating compensatory hyperhidrosis. Dermcidin, a new antimicrobial peptide exclusively produced by sweat glands, was abundantly detected not only in the sweat glands and ducts, and the lumen, but also in the dermal tissues adjacent to the sweat glands. These results indicate that the sweat may be retained in the lumen or pour into the dermal tissues, thereby causing inflammation. Thus, chronic inflammation in AD may be caused in part by a dysfunction of the sweat delivery system.
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Uchida N, Hsieh MM, Hayakawa J, Madison C, Washington KN, Tisdale JF. Optimal conditions for lentiviral transduction of engrafting human CD34+ cells. Gene Ther 2011; 18:1078-86. [PMID: 21544097 DOI: 10.1038/gt.2011.63] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Cytokines are required for γ-retroviral transduction of human CD34+ cells. However, cytokines may reduce engraftment of CD34+ cells and may not be necessary for their lentiviral transduction. We sought to optimize transduction and engraftment of human CD34+ cells using lentiviral vectors. Single 24 h transduction of human CD34+ cells with human immunodeficiency virus type 1 (HIV1)-based lentiviral vectors in media containing stem cell factor (SCF), FMS-like tyrosine kinase 3 (FLT3) ligand, thrombopoietin (each 100 ng ml⁻¹) and 10% fetal bovine serum was compared with various cytokine conditions during ex vivo culture and assayed using humanized xenograft mice for 6 months after transplantation. Serum-free media improved transduction efficiency of human CD34+ cells. Interleukin-3 (20 ng ml⁻¹) had little effect on transduction efficiency or engraftment. Threefold higher cytokine mixture (each 300 ng ml⁻¹) reduced engraftment of CD34+ cells. SCF alone (100 ng ml⁻¹) proved insufficient for maintaining engraftment ability and reduced transduction efficiency. Short-term prestimulation had little effect on transduction efficiency or engraftment, yet 24 h prestimulation showed higher transduction efficiency, higher gene expression levels and lower engraftment. In summary, 24 h prestimulation followed by single 24-h lentiviral transduction in serum-free media with SCF, FLT3 ligand and thrombopoietin yields high transduction efficiency to engrafting human CD34+ cells, and is applicable in human clinical gene therapy trials.
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Affiliation(s)
- N Uchida
- Molecular and Clinical Hematology Branch, National Heart Lung and Blood Institute-NHLBI/National Institute of Diabetes and Digestive and Kidney Diseases-NIDDK, National Institutes of Health-NIH, Bethesda, MD 20892, USA
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29
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Park BG, Wunderlich J, Martí X, Holý V, Kurosaki Y, Yamada M, Yamamoto H, Nishide A, Hayakawa J, Takahashi H, Shick AB, Jungwirth T. A spin-valve-like magnetoresistance of an antiferromagnet-based tunnel junction. Nat Mater 2011; 10:347-351. [PMID: 21399629 DOI: 10.1038/nmat2983] [Citation(s) in RCA: 141] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2010] [Accepted: 02/02/2011] [Indexed: 05/30/2023]
Abstract
A spin valve is a microelectronic device in which high- and low-resistance states are realized by using both the charge and spin of carriers. Spin-valve structures used in modern hard-drive read heads and magnetic random access memoriescomprise two ferromagnetic electrodes whose relative magnetization orientations can be switched between parallel and antiparallel configurations, yielding the desired giant or tunnelling magnetoresistance effect. Here we demonstrate more than 100% spin-valve-like signal in a NiFe/IrMn/MgO/Pt stack with an antiferromagnet on one side and a non-magnetic metal on the other side of the tunnel barrier. Ferromagneticmoments in NiFe are reversed by external fields of approximately 50 mT or less, and the exchange-spring effect of NiFe on IrMn induces rotation of antiferromagnetic moments in IrMn, which is detected by the measured tunnelling anisotropic magnetoresistance. Our work demonstrates a spintronic element whose transport characteristics are governed by an antiferromagnet. It demonstrates that sensitivity to low magnetic fields can be combined with large, spin-orbit-coupling-induced magnetotransport anisotropy using a single magnetic electrode. The antiferromagnetic tunnelling anisotropic magnetoresistance provides a means to study magnetic characteristics of antiferromagnetic films by an electronic-transport measurement.
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Affiliation(s)
- B G Park
- Hitachi Cambridge Laboratory, Cambridge CB3 0HE, UK.
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30
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Fukumi K, Chayahara A, Adachi M, Kadono K, Sakaguchi T, Miya M, Horino Y, Kitamura N, Hayakawa J, Yamashita H, Fujii K, Satou M. Formation of Au Colloid Particles in Silica Glass by Ion Implantation. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-235-389] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTFormation of Au colloid particles and their optical property have been investigated in silica glasses implanted with Au+ ions at an acceleration energy of 1.5MeV and fluence levels of 1016-1017 ions/cm2. The Au colloid particles are formed in the as-implanted glasses. It is inferred that the average radius of Au colloid particles depends on the fluence level, although the fluence level does not affect the distribution of Au atomic concentration. The heat-treatment little affects the Au atomic distribution. The Au colloid particles grow to 4.3nm in average radius during heat treatment. It is revealed that the large nonlinear optical property of the Au+ -ion-implanted silica glass is attributed to the high concentration of the Au colloid particles in the narrow region.
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Abstract
AbstractAg+ ions were implanted in silica glass at an acceleration energy of 1.5MeV. It is found that Ag atoms are present in both the metallic and ionic states. Ag atoms in the metallic state increase when the Ag atom concentration increases. It is shown that the structure of damaged glass recovers monotonically from the surface to the inside of the glass. The state of the Ag atoms does not depend on the glass structure damaged by ion implantation.
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Hayakawa J, Migita M, Ueda T, Itoh Y, Fukunaga Y. An Infantile Case of Early Manifestation of SLE-like Symptoms in Complete C1q Deficiency. J NIPPON MED SCH 2011; 78:322-8. [DOI: 10.1272/jnms.78.322] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Jun Hayakawa
- Department of Pediatrics, Graduate School of Medicine, Nippon Medical School
- Department of Pediatrics, Nippon Medical School
| | - Makoto Migita
- Department of Pediatrics, Graduate School of Medicine, Nippon Medical School
- Department of Pediatrics, Nippon Medical School
| | - Takahiro Ueda
- Department of Pediatrics, Graduate School of Medicine, Nippon Medical School
- Department of Pediatrics, Nippon Medical School
| | - Yasuhiko Itoh
- Department of Pediatrics, Graduate School of Medicine, Nippon Medical School
- Department of Pediatrics, Nippon Medical School
| | - Yoshitaka Fukunaga
- Department of Pediatrics, Graduate School of Medicine, Nippon Medical School
- Department of Pediatrics, Nippon Medical School
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Fukazawa R, Tamai J, Imai T, Takeda S, Hayakawa J, Narazaki H, Shimizu K, Takase M. Multi-row Detector Computed Tomography Coronary Angiogram Image of an Anomalous Left Coronary Artery from the Pulmonary Artery. J NIPPON MED SCH 2011; 78:2-3. [DOI: 10.1272/jnms.78.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Ryuji Fukazawa
- Department of Pediatrics, Graduate School of Medicine, Nippon Medical School
- Department of Pediatrics, Nippon Medical School Tama Nagayama Hospital
| | - Jin Tamai
- Department of Clinical Radiology, Graduate School of Medicine, Nippon Medical School
- Department of Radiology, Nippon Medical School Tama Nagayama Hospital
| | - Takehide Imai
- Department of Pediatrics, Graduate School of Medicine, Nippon Medical School
- Department of Pediatrics, Nippon Medical School Tama Nagayama Hospital
| | - Sachiyo Takeda
- Department of Pediatrics, Graduate School of Medicine, Nippon Medical School
- Department of Pediatrics, Nippon Medical School Tama Nagayama Hospital
| | - Jun Hayakawa
- Department of Pediatrics, Graduate School of Medicine, Nippon Medical School
- Department of Pediatrics, Nippon Medical School Tama Nagayama Hospital
| | - Hidehiko Narazaki
- Department of Pediatrics, Graduate School of Medicine, Nippon Medical School
- Department of Pediatrics, Nippon Medical School Tama Nagayama Hospital
| | - Kiwako Shimizu
- Department of Pediatrics, Graduate School of Medicine, Nippon Medical School
- Department of Pediatrics, Nippon Medical School Tama Nagayama Hospital
| | - Masato Takase
- Department of Pediatrics, Graduate School of Medicine, Nippon Medical School
- Department of Pediatrics, Nippon Medical School Tama Nagayama Hospital
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Hayakawa J, Joyal EG, Gildner JF, Washington KN, Phang OA, Uchida N, Hsieh MM, Tisdale JF. 5% dimethyl sulfoxide (DMSO) and pentastarch improves cryopreservation of cord blood cells over 10% DMSO. Transfusion 2010; 50:2158-66. [PMID: 20492608 DOI: 10.1111/j.1537-2995.2010.02684.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Cell number and viability are important in cord blood (CB) transplantation. While 10% dimethyl sulfoxide (DMSO) is the standard medium, adding a starch to freezing medium is increasingly utilized as a cytoprotectant for the thawing process. Similar to hetastarch, pentastarch has the advantages of faster renal clearance and less effect on the coagulation system. STUDY DESIGN AND METHODS We compared a lower DMSO concentration (5%) containing pentastarch with 10% DMSO and performed cell viability assay, colony-forming units (CFUs), and transplantation of CB cells in NOD/SCID IL2Rγ(null) mice. RESULTS CB cells in 5% DMSO/pentastarch had similar CD34+, CD3+, and CD19+ cell percentages after thawing as fresh CB cells. CB cells in 5% DMSO/pentastarch had higher viability (83.3±9.23%) than those frozen in 10% DMSO (75.3±11.0%, p<0.05). We monitored cell viability postthaw every 30 minutes. The mean loss in the first 30 minutes was less in the 5% DMSO/pentastarch group. At the end of 3 hours, the viability decreased by a mean of 7.75% for the 5% DMSO/pentastarch and 17.5% for the 10% DMSO groups. CFUs were similar between the two cryopreserved groups. Frozen CB cells engrafted equally well in IL2Rγ(null) mice compared to fresh CB cells up to 24 weeks, and CB cells frozen in 5% DMSO/pentastarch engrafted better than those in 10% DMSO. CONCLUSION Our data indicate that the lower DMSO concentration with pentastarch represents an improvement in the CB cryopreservation process and could have wider clinical application as an alternate freezing medium over 10% DMSO.
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Affiliation(s)
- Jun Hayakawa
- Molecular and Clinical Hematology Branch (MCHB), National Institutes of Diabetes and Digestive and Kidney Disorders (NIDDK), National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health, Bethesda, Maryland, USA
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Ikeda S, Miura K, Yamamoto H, Mizunuma K, Gan HD, Endo M, Kanai S, Hayakawa J, Matsukura F, Ohno H. A perpendicular-anisotropy CoFeB-MgO magnetic tunnel junction. Nat Mater 2010; 9:721-4. [PMID: 20622862 DOI: 10.1038/nmat2804] [Citation(s) in RCA: 442] [Impact Index Per Article: 31.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2010] [Accepted: 06/16/2010] [Indexed: 05/25/2023]
Abstract
Magnetic tunnel junctions (MTJs) with ferromagnetic electrodes possessing a perpendicular magnetic easy axis are of great interest as they have a potential for realizing next-generation high-density non-volatile memory and logic chips with high thermal stability and low critical current for current-induced magnetization switching. To attain perpendicular anisotropy, a number of material systems have been explored as electrodes, which include rare-earth/transition-metal alloys, L1(0)-ordered (Co, Fe)-Pt alloys and Co/(Pd, Pt) multilayers. However, none of them so far satisfy high thermal stability at reduced dimension, low-current current-induced magnetization switching and high tunnel magnetoresistance ratio all at the same time. Here, we use interfacial perpendicular anisotropy between the ferromagnetic electrodes and the tunnel barrier of the MTJ by employing the material combination of CoFeB-MgO, a system widely adopted to produce a giant tunnel magnetoresistance ratio in MTJs with in-plane anisotropy. This approach requires no material other than those used in conventional in-plane-anisotropy MTJs. The perpendicular MTJs consisting of Ta/CoFeB/MgO/CoFeB/Ta show a high tunnel magnetoresistance ratio, over 120%, high thermal stability at dimension as low as 40 nm diameter and a low switching current of 49 microA.
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Hayakawa J, Hsieh MM, Anderson DE, Phang O, Uchida N, Washington K, Tisdale JF. The assessment of human erythroid output in NOD/SCID mice reconstituted with human hematopoietic stem cells. Cell Transplant 2010; 19:1465-73. [PMID: 21214970 PMCID: PMC3879801 DOI: 10.3727/096368910x314161] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [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] [Indexed: 11/24/2022] Open
Abstract
The third-generation NOD/LtSz-scid/IL2Rγ(null) (NOD/SCID IL2Rγ(null)) mouse represents a significantly improved xenograft model allowing high levels of human leukocyte engraftment over extended follow up. One remaining limitation of this mouse model, however, is the low level of circulating human erythrocytes. We established a practical ex vivo erythroid culture system of xenograft marrow progenitors to enrich for human erythroid progeny. At various time points after transplant, erythroid cells were easily assayed after 17 days of ex vivo culture of xenograft marrow, with nearly all nucleated cells of human origin and approximately 60% human GPA or CD71 positive. We then transplanted cord blood CD34(+) cells marked with a lentiviral vector encoding green fluorescent protein (GFP). Three months later, ex vivo culture of xenograft marrow progenitors showed 41.3% of the cultured erythroid cells were positive for GFP and human CD71, and 56.2% were positive for GFP and human GPA, similar to that of circulating leukocytes at the same time point. Next, G-CSF mobilized peripheral blood CD34(+) cells from a sickle cell trait subject were infused in this mouse model to determine if the hemoglobin pattern could be modeled. CD34(+) cells from the sickle cell trait subject engrafted equally compared to CD34(+) cells from normal subjects, establishing the sickle cell trait phenotype. Lastly, a comparison of adult-derived peripheral blood CD34(+) cells and cord blood-derived CD34(+) cells xenografted mice was made, and long term follow-up demonstrated a recapitulation of the fetal to adult hemoglobin switch. This approach should prove a useful tool for testing strategies for genetic manipulation of erythroid progeny and the study of hemoglobin switching.
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Affiliation(s)
- Jun Hayakawa
- Molecular and Clinical Hematology Branch, National Institutes of Diabetes and Digestive and Kidney Disorders (NIDDK) and National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health, Bethesda, MD, USA
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Hayakawa J, Hsieh MM, Anderson DE, Phang O, Uchida N, Washington K, Tisdale JF. The assessment of human erythroid output in NOD/SCID mice reconstituted with human hematopoietic stem cells. Cell Transplant 2010. [DOI: 10.3727/096368910x514161] [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: 11/24/2022] Open
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Hayakawa J, Migita M, Ueda T, Fukazawa R, Adachi K, Ooue Y, Hayakawa M, Shimada T, Fukunaga Y. Dextran sulfate and stromal cell derived factor-1 promote CXCR4 expression and improve bone marrow homing efficiency of infused hematopoietic stem cells. J NIPPON MED SCH 2009; 76:198-208. [PMID: 19755795 DOI: 10.1272/jnms.76.198] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Although the homing of hematopoietic stem cells (HSC) to the bone marrow (BM) is a crucial step in hematopoietic development and BM repopulation, the mechanisms underlying these processes have not been fully clarified. Recent studies suggest that interaction between the chemokine receptor CXCR4 and its ligand, stromal cell-derived factor 1 (SDF-1), plays a critical role in these processes. In addition, dextran sulfate increases plasma SDF-1 levels in mice and nonhuman primates. Thus, we examined the effects of preconditioning with SDF-1 and dextran sulfate on the homing efficiency of HSCs following BM transplantation in mice. We found that the preconditioning of donor mice with either SDF-1 or dextran sulfate enhanced the homing efficiency of infused HSCs in vivo. The greatest effects were obtained with dextran sulfate. Moreover, reverse transcriptase polymerase chain reaction analysis demonstrated that SDF-1 and dextran sulfate increased transcription of a variety of homing-related genes, including those for CXCR4, lymphocyte function associated antigen-1, matrix metalloproteinase-9, very late antigen-4/5, and macrophage inflammatory protein-1. We suggest that whereas SDF-1 directly acts to upregulate CXCR4 expression in HSCs, dextran sulfate acts via multiple pathways involved in the induction of various homing-related molecules, in addition to SDF-1. Thus, preconditioning donors with dextran sulfate offers a novel clinical approach for improving the homing and engraftment of HSCs in the BM.
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Affiliation(s)
- Jun Hayakawa
- Department of Pediatrics, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
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Hayakawa J, Ueda T, Lisowski L, Hsieh MM, Washington K, Phang O, Metzger M, Krouse A, Donahue RE, Sadelain M, Tisdale JF. Transient in vivo beta-globin production after lentiviral gene transfer to hematopoietic stem cells in the nonhuman primate. Hum Gene Ther 2009; 20:563-72. [PMID: 19222366 DOI: 10.1089/hum.2008.186] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Inherited disorders of globin synthesis remain desirable targets for hematopoietic stem cell (HSC)-based therapies. Gene transfer using retroviral vectors offers an alternative to allogeneic HSC transplantation by the permanent integration of potentially therapeutic genes into primary autologous HSCs. Although proof of principle has been demonstrated in humans, this approach has been met by formidable obstacles, and large-animal models have become increasingly important for the preclinical development of gene addition strategies. Here we report lentiviral gene transfer of the human beta-globin gene under the control of the globin promoter and large fragments of the globin locus control region (LCR) in the nonhuman primate. Using an HIV-1, vesicular stomatitis virus glycoprotein G (VSV-G)-pseudotyped vector, modified to overcome a species-specific restriction to HIV-1, gene transfer to colony-forming units (CFU) derived from mobilized peripheral blood (PB) rhesus CD34+ cells was 84.4 +/- 2.33%. Erythroid cells derived from transduced rhesus CD34+ cells expressed human beta-globin at high levels as assessed by flow cytometry with a human beta-globin-specific antibody. Two rhesus macaques (RQ3586 and RQ3583) were transplanted with mobilized PB CD34+ cells transduced with our modified HIV vector at a multiplicity of infection of 80. High gene transfer rates to CFUs were achieved in vitro (RQ3586, 87.5%; RQ3583, 83.3%), with efficient human beta-globin expression among erythroid progeny generated in vitro. Early posttransplantation, gene transfer rates of 5% or higher were detectable and confirmed by genomic Southern blotting, with equivalent-level human beta-globin expression detected by flow cytometry. Long-term gene marking levels among mononuclear cells and granulocytes assessed by quantitative polymerase chain reaction gradually decreased to about 0.001% at 2 years, likely due to additional HIV-1 restrictive elements in the rhesus macaque. No evidence of clonal hematopoiesis has occurred in our animals in up to 2 years. Current efforts are aimed at developing a lentiviral vector capable of efficiently transducing both human and rhesus HSCs to allow preclinical modeling of globin gene transfer.
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Affiliation(s)
- Jun Hayakawa
- Molecular and Clinical Hematology Branch (MCHB), National Institutes of Diabetes and Digestive and Kidney Disorders (NIDDK) , National Institutes of Health (NIH), Bethesda, MD 20892, USA
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Abstract
Xenografting immunodeficient mice after low-dose irradiation has been used as a surrogate human hematopoietic stem cell (HSC) assay; however, irradiation requires strict and meticulous animal support and can produce significant mortality rates, limiting the usefulness of this model. In this work, we examined the use of parenteral busulfan as an alternative conditioning agent. Busulfan led to dose-dependent human HSC engraftment in NOD/LtSz-scid/IL2Rgamma(null) mice, with marked improvement in survival rates. Terminally differentiated B and T lymphocytes made up most of the human CD45+ cells observed during the initial 5 weeks post-transplant when unselected cord blood (CB) products were infused, suggesting derivation from existing mature elements rather than HSCs. Beyond 5 weeks, CD34+-enriched products produced and sustained superior engraftment rates compared with unselected grafts (CB CD34+, 65.8% +/- 5.35%, vs. whole CB, 4.27% +/- 0.67%, at 24 weeks). CB CD34+ group achieved significantly higher levels of engraftment than mobilized CD34+-enriched peripheral blood (PB CD34+). At 8 weeks, all leukocyte subsets were detected, yet human red blood cells (RBCs) were not observed. Transfused human red cells persisted in the chimeric mice for up to 3 days; an accompanying rise in total bilirubin suggested hemolysis as a contributing factor to their clearance. Recipient mouse-derived human HSCs had the capacity to form erythroid colonies in vitro at various time points post-transplant in the presence of human transferrin (Tf). When human Tf was administered singly or in combination with anti-CD122 antibody and human cytokines, up to 0.1% human RBCs were detectable in the peripheral blood. This long evasive model should prove valuable for the study of human erythroid cells.
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Affiliation(s)
- Jun Hayakawa
- Molecular and Clinical Hematology Branch, National Institutes of Diabetes and Digestive and Kidney Disorders, Bethesda, Maryland 20892, USA
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Hayakawa J, Washington K, Uchida N, Phang O, Kang EM, Hsieh MM, Tisdale JF. Long-term vector integration site analysis following retroviral mediated gene transfer to hematopoietic stem cells for the treatment of HIV infection. PLoS One 2009; 4:e4211. [PMID: 19148292 PMCID: PMC2615408 DOI: 10.1371/journal.pone.0004211] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [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: 10/01/2008] [Accepted: 11/25/2008] [Indexed: 12/24/2022] Open
Abstract
We previously reported the efficacy of nonmyeloablative allogeneic transplantation in 2 HIV positive recipients, one of whom received retrovirus transduced hematopoietic stem cells to confer resistance to HIV. Here we report an assessment of retroviral integration sites (RISs) recovered out to 3 years post-transplantation. We identified 213 unique RISs from the patient's peripheral blood samples by linear amplification-mediated PCR (LAM-PCR). While vector integration patterns were similar to that previously reported, only 3.76% of RISs were common among early (up to 3 months) and late samples (beyond 1 year). Additionally, common integration sites were enriched among late samples (14.9% vs. 36.8%, respectively). Three RISs were found near or within known oncogenes, but 2 were limited to early timepoints. Interestingly, an integration site near the MDS1 gene was detected in long-term follow-up samples; however, the overall contribution of MDS1 integrated clone remained stably low during follow-up.
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Affiliation(s)
- Jun Hayakawa
- Molecular and Clinical Hematology Branch (MCHB), National Institutes of Diabetes and Digestive and Kidney Disorders (NIDDK) and National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, Maryland, United States of America
| | - Kareem Washington
- Molecular and Clinical Hematology Branch (MCHB), National Institutes of Diabetes and Digestive and Kidney Disorders (NIDDK) and National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, Maryland, United States of America
| | - Naoya Uchida
- Molecular and Clinical Hematology Branch (MCHB), National Institutes of Diabetes and Digestive and Kidney Disorders (NIDDK) and National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, Maryland, United States of America
| | - Oswald Phang
- Molecular and Clinical Hematology Branch (MCHB), National Institutes of Diabetes and Digestive and Kidney Disorders (NIDDK) and National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, Maryland, United States of America
| | - Elizabeth M. Kang
- Molecular and Clinical Hematology Branch (MCHB), National Institutes of Diabetes and Digestive and Kidney Disorders (NIDDK) and National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, Maryland, United States of America
| | - Matthew M. Hsieh
- Molecular and Clinical Hematology Branch (MCHB), National Institutes of Diabetes and Digestive and Kidney Disorders (NIDDK) and National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, Maryland, United States of America
| | - John F. Tisdale
- Molecular and Clinical Hematology Branch (MCHB), National Institutes of Diabetes and Digestive and Kidney Disorders (NIDDK) and National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, Maryland, United States of America
- * E-mail:
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Sawada K, Morishige KI, Nishio Y, Hayakawa J, Mabuchi S, Isobe A, Ogata S, Sakata M, Ohmichi M, Kimura T. Peripheral quantitative computed tomography is useful to monitor response to alendronate therapy in postmenopausal women. J Bone Miner Metab 2009; 27:175-81. [PMID: 19152069 DOI: 10.1007/s00774-008-0025-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2007] [Accepted: 06/05/2008] [Indexed: 10/21/2022]
Abstract
A forearm fracture (Colles' fracture) is often the first sign of osteoporosis and may suggest underlying skeletal fragility. Therefore, establishment of a more accurate and reliable method for the measurement of bone mineral density (BMD) at the distal radius would be beneficial for patients who suffer from osteoporosis. The objective of this study was to evaluate the usefulness of peripheral quantitative computed tomography (pQCT) to monitor the response to alendronate therapy at the distal radius in early postmenopausal Japanese women. Thirty-two early postmenopausal women who were diagnosed with osteoporosis or osteopenia were randomized to either alendronate or control treatment. We analyzed the BMD of the distal radius by pQCT, lumbar spine by dual-energy X-ray absorptiometry (DXA) and the biochemical markers of bone turnover (deoxypyridinoline) at baseline, 3, 6 and 12 months. The control group showed a significant decrease from baseline in the trabecular BMD of the radius at 12 months (3.5 +/- 3.7%; p < 0.01), whereas the alendronate group showed a significant increase (4.3 +/- 8.1%). The changes in the trabecular BMD of the radius between the alendronate and control groups were statistically different at 6 and 12 months (p < 0.01). However, in the total BMD at the diaphysis of the radius, no significant differences were seen in the changes in bone densities between the alendronate and control groups after 1 year of treatment. pQCT detected significant differences in BMD of the radius in early postmenopausal women after 1 year of treatment with alendronate. Collectively, our preliminary clinical trial showed that pQCT might be useful to monitor response to alendronate therapy, especially at the radius, and it might explain why alendronate prevents Colles' fracture.
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Affiliation(s)
- Kenjiro Sawada
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
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Kawai K, Hayakawa J, Miyamoto T, Imamura Y, Yamane S, Wakita H, Fujii H, Kawamura K, Matsuura H, Izumimoto N, Kobayashi R, Endo T, Nagase H. Design, synthesis, and structure-activity relationship of novel opioid kappa-agonists. Bioorg Med Chem 2008; 16:9188-201. [PMID: 18829333 DOI: 10.1016/j.bmc.2008.09.011] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2008] [Revised: 09/02/2008] [Accepted: 09/05/2008] [Indexed: 10/21/2022]
Abstract
By focusing on 4,5-epoxymorphinan, a traditional opioid skeleton but a new structure in the opioid kappa-agonist research field, and by rationally applying the 'message-address concept' and 'accessory site hypothesis,' we discovered a new chemical class opioid kappa-agonist, TRK-820 (1). Its development as an antipruritus is now in the final stage. Here, the full scope of its design, synthesis, and structure-activity relationship are described.
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Affiliation(s)
- Koji Kawai
- Pharmaceutical Research Laboratories, Toray Industries, Inc., 6-10-1 Tebiro, Kamakura, Kanagawa 248-8555, Japan
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Devolder T, Hayakawa J, Ito K, Takahashi H, Ikeda S, Crozat P, Zerounian N, Kim JV, Chappert C, Ohno H. Single-shot time-resolved measurements of nanosecond-scale spin-transfer induced switching: stochastic versus deterministic aspects. Phys Rev Lett 2008; 100:057206. [PMID: 18352422 DOI: 10.1103/physrevlett.100.057206] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2007] [Revised: 10/16/2007] [Indexed: 05/26/2023]
Abstract
Using high bandwidth resistance measurements, we study the single-shot response of tunnel junctions subjected to spin torque pulses. After the pulse onset, the switching proceeds by a ns-scale incubation delay during which the resistance is quiet, followed by a 400 ps transition terminated by a large ringing that is damped progressively. While the incubation delay fluctuates significantly, the resistance traces are reproducible once this delay is passed. After switching, the time-resolved resistance traces indicate micromagnetic configurations that are rather spatially coherent.
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Affiliation(s)
- T Devolder
- Institut d'Electronique Fondamentale, CNRS UMR 8622, Bât. 220, université Paris-Sud, 91405 Orsay, France
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Igarashi T, Miyake K, Hayakawa J, Kawabata K, Ishizaki M, Takahashi H, Shimada T. Apoptotic cell death and regeneration in the newborn retina after irradiation prior to bone marrow transplantation. Curr Eye Res 2007; 32:543-53. [PMID: 17612970 DOI: 10.1080/02713680701389333] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [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: 10/23/2022]
Abstract
PURPOSE We studied the contribution made by circulating bone marrow (BM)-derived cells to the newborn and mature retinas of BM-transplanted mice. METHODS Newborn and adult C57BL/6J mice were administered a lethal dose of total-body irradiation, after which pathologic changes to the retinas were periodically assessed. In addition, mice received BM cells from 8-week-old green fluorescent protein (GFP) transgenic mice, and the subsequent differentiation of GFP+ cells was studied. RESULTS Within 5 hr after irradiation of newborn mice, retinal cells began to die due to apoptosis. By contrast, irradiation of adult mice elicited no histologic changes in the retina. BM cells generally did not differentiate in adult mice, but numerous GFP+ BM cells were integrated into the retinal tissue of newborn mice, where they expressed various cell type-specific markers. Finally, examination of whole retina mounts showed that GFP+ cells also contributed to retinal vascularization. CONCLUSIONS Our findings underscore the importance of careful evaluation of the biological effects of irradiation in models making use of BM transplantation.
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Affiliation(s)
- Tsutomu Igarashi
- Department of Biochemistry, Nippon Medical School, Tokyo, Japan.
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Houjou T, Hayakawa J, Watanabe R, Tashima Y, Maeda Y, Kinoshita T, Taguchi R. Changes in molecular species profiles of glycosylphosphatidylinositol anchor precursors in early stages of biosynthesis. J Lipid Res 2007; 48:1599-606. [PMID: 17449863 DOI: 10.1194/jlr.m700095-jlr200] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [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: 11/20/2022] Open
Abstract
Glycosylphosphatidylinositol (GPI) anchor is a major lipidation in posttranslational modification. GPI anchor precursors are biosynthesized from endogenous phosphatidylinositols (PIs) and attached to proteins in the endoplasmic reticulum. Endogenous PIs are characterized by domination of diacyl species and the presence of polyunsaturated fatty acyl chain, such as 18:0-20:4, at the sn-2 position. In contrast, the features of mammalian glycosylphosphatidylinositol-anchored proteins (GPI-APs) are domination of alkyl/acyl PI species and the presence of saturated fatty acyl chains at the sn-2 position, the latter being consistent with association with lipid rafts. Recent studies showed that saturated fatty acyl chain at sn-2 is introduced by fatty acid remodeling that occurs in GPI-APs. To gain insight into the former feature, we analyzed the molecular species of several different GPI precursors derived from various mammalian mutant cell lines. Here, we show that the PI species profile greatly changed in the precursor glucosamine (GlcN)-acyl-PI and became very similar to that of GPI-APs before fatty acid remodeling. They had alkyl (or alkenyl)/acyl types with unsaturated acyl chain as the major PI species. Therefore, a specific feature of the PI moieties of mature GPI-APs, domination of alkyl (or alkenyl)/acyl type species over diacyl types, is established at the stage of GlcN-acyl-PI.
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Affiliation(s)
- Toshiaki Houjou
- Graduate School of Medicine, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
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Yada-Hashimoto N, Nishio Y, Ohmichi M, Hayakawa J, Mabuchi S, Hisamoto K, Nakatsuji Y, Sasaki H, Seino-Noda H, Sakata M, Tasaka K, Murata Y. Estrogen and raloxifene inhibit the monocytic chemoattractant protein-1-induced migration of human monocytic cells via nongenomic estrogen receptor alpha. Menopause 2007; 13:935-41. [PMID: 17006379 DOI: 10.1097/01.gme.0000248732.78698.a7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
OBJECTIVE To investigate the effects of estradiol (E2) and raloxifene on the migration of human monocytic THP-1 cells to endothelium. DESIGN A prospective comparative study. THP-1 cells, a human acute monocytic leukemia cell line, were used for the study. Migration assays were performed using transwell inserts. THP-1 cells were exposed to E2 or raloxifene in the presence of monocytic chemoattractant protein-1 (MCP-1), a major chemoattractant for monocytes. The cells were transfected with small interfering RNA (siRNA) against estrogen receptor (ER) alpha and ERbeta for gene silencing. ER expression was evaluated by Western blot analysis. RESULTS MCP-1 induced the migration of the cells for 90 minutes. The addition of E2 or raloxifene significantly inhibited the MCP-1-induced migration for 90 minutes. Preincubation of THP-1 cells with an ER antagonist, ICI 182780, significantly attenuated the inhibitory effects of E2 and raloxifene. Whereas transfection with siRNA of ERalpha significantly attenuated the inhibition by E2 of MCP-1-induced monocyte migration, transfection with control siRNA or siRNA of ERbeta had no effect on the rapid inhibitory action of E2. Moreover, preincubation of THP-1 cells with a transcriptional inhibitor, actinomycin D, had no effect on the rapid inhibitory action of E2. CONCLUSIONS Our findings suggest that both E2 and raloxifene inhibited the MCP-1-induced monocyte migration through nongenomic ERalpha. This result may explain one of the antiatherosclerotic effects of E2 and raloxifene on vasculature.
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Affiliation(s)
- Namiko Yada-Hashimoto
- Department of Obstetrics and Gynecology, School of Medicine, Osaka University, Osaka, Japan
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Hayakawa J, Okabayashi Y. Simultaneous Analysis of Eight Phospholipid Classes by Liquid Chromatography/Mass Spectrometry: Application to Human HDL. J LIQ CHROMATOGR R T 2007. [DOI: 10.1081/jlc-200058333] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Jun Hayakawa
- a Shionogi Research Laboratories , Shionogi & Co., Ltd. , Osaka, Japan
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Affiliation(s)
- Jun Hayakawa
- Department of Pediatrics, Nippon Medical School, Sendagi, Tokyo, Japan.
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