1
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Fujii R, Asai T, Yamada M, Sako R, Tamiya Y, Furusawa M. Root Canal Treatment of Oehlers Type III Dens Invaginatus in Maxillary Lateral Incisor and Remote Sinus Tract Using Dental Surgical Microscope and Cone-Beam Computed Tomography. Bull Tokyo Dent Coll 2023. [PMID: 37183009 DOI: 10.2209/tdcpublication.2022-0032] [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] [Indexed: 05/16/2023]
Abstract
Dens invaginatus is a morphological abnormality of the tooth that results from a developmental anomaly during tooth formation, in which part of the enamel and dentin of the crown invaginates into the pulp cavity. This report describes a case of a maxillary lateral incisor with apical periodontitis apparently caused by Oehlers Type III dens invaginatus. The patient was a 69-year-old man who visited our clinic complaining of discomfort in the maxillary right lateral incisor. Cone-beam computed tomography (CBCT) revealed dens invaginatus of the maxillary lateral incisor and a sinus tract in the maxillary central incisor region, which was derived from apical periodontitis of the maxillary lateral incisor. The dens invaginatus was accompanied by a complex root canal morphology. Treatment, which was performed using a dental surgical microscope, had a favorable outcome. The patient remains in good condition at 1 year postoperatively.
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Affiliation(s)
- Rie Fujii
- Department of Endodontics, Tokyo Dental College
| | | | | | - Ryo Sako
- Department of Endodontics, Tokyo Dental College
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2
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Fujii R, Hasegawa S, Maekawa H, Inoue T, Yoshioka K, Uni R, Ikeda Y, Nangaku M, Inagi R. Decreased IFT88 expression with primary cilia shortening causes mitochondrial dysfunction in cisplatin-induced tubular injury. Am J Physiol Renal Physiol 2021; 321:F278-F292. [PMID: 34338030 DOI: 10.1152/ajprenal.00673.2020] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 01/11/2023] Open
Abstract
The relevance of primary cilia shortening in kidney disease and its pathomechanism are largely unknown. Tubular damage in acute kidney injury (AKI) is strongly associated with mitochondrial dysfunction. Thus, we investigated the interaction between primary cilia and mitochondria in cisplatin-induced AKI mouse models. We observed that the expression of intraflagellar transport 88 (IFT88), a ciliary maintenance protein, was decreased in the renal cortex following tubular damage due to cisplatin-induced AKI. This result was consistent with the decreased IFT88 expression in cisplatin-treated RPTEC/TERT1 cells (human primary proximal tubular cells) parallel to the shortening of primary cilia, suggesting a causative link between tubular damage and IFT88-mediated cilia regulation. To address the effect of impaired primary cilia with decreased IFT88 expression on tubular function, RPTEC/TERT1 cells treated with cisplatin and knocked down for IFT88 using siRNA (IFT88-KD) were assessed for phenotypic changes and mitochondrial metabolic function. Both cisplatin and IFT88-KD caused primary cilia shortening, downregulated mitochondrial oxidative phosphorylation capacity, and had defective fatty acid oxidation and decreased ATP production. Furthermore, IFT88 overexpression enhanced mitochondrial respiration, which partially counteracted cisplatin-induced defective fatty acid oxidation. These results are indicative of the contribution of IFT88 to mitochondrial homeostasis. Our findings suggest that tubular mitochondrial dysfunction in cisplatin-induced AKI is mediated, at least in part, by a decrease in IFT88 expression with primary cilia shortening. That is, tubular mitochondrial damage followed by tubular injury in AKI may occur through alteration of IFT88 expression and subsequent ciliary shortening in tubular cells.NEW & NOTEWORTHY Here, we demonstrated organelle cross-talk between primary cilia and mitochondria of proximal tubular cells in cisplatin-induced acute kidney injury. The primary cilia-mitochondria interaction may open new avenues for the development of novel therapeutic approaches in the treatment of acute kidney injury.
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Affiliation(s)
- Rie Fujii
- Division of Nephrology and Endocrinology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan.,Division of Chronic Kidney Disease Pathophysiology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Sho Hasegawa
- Division of Nephrology and Endocrinology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan.,Division of Chronic Kidney Disease Pathophysiology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Hiroshi Maekawa
- Division of Nephrology and Endocrinology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan.,Division of Chronic Kidney Disease Pathophysiology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Tsuyoshi Inoue
- Department of Physiology of Visceral Function and Body Fluid, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Kentaro Yoshioka
- Division of Nephrology and Endocrinology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan.,Division of Chronic Kidney Disease Pathophysiology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan.,R&D Division, Kyowa Kirin Company, Limited, Tokyo, Japan
| | - Rie Uni
- Division of Nephrology and Endocrinology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan.,Division of Chronic Kidney Disease Pathophysiology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Yoichiro Ikeda
- Division of Nephrology and Endocrinology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Masaomi Nangaku
- Division of Nephrology and Endocrinology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Reiko Inagi
- Division of Chronic Kidney Disease Pathophysiology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
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3
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Hasegawa S, Inoue T, Nakamura Y, Fukaya D, Uni R, Wu CH, Fujii R, Peerapanyasut W, Taguchi A, Kohro T, Yamada S, Katagiri M, Ko T, Nomura S, Nakanishi Ozeki A, Susaki EA, Ueda HR, Akimitsu N, Wada Y, Komuro I, Nangaku M, Inagi R. Activation of Sympathetic Signaling in Macrophages Blocks Systemic Inflammation and Protects against Renal Ischemia-Reperfusion Injury. J Am Soc Nephrol 2021; 32:1599-1615. [PMID: 33875568 PMCID: PMC8425643 DOI: 10.1681/asn.2020121723] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 02/15/2021] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND The sympathetic nervous system regulates immune cell dynamics. However, the detailed role of sympathetic signaling in inflammatory diseases is still unclear because it varies according to the disease situation and responsible cell types. This study focused on identifying the functions of sympathetic signaling in macrophages in LPS-induced sepsis and renal ischemia-reperfusion injury (IRI). METHODS We performed RNA sequencing of mouse macrophage cell lines to identify the critical gene that mediates the anti-inflammatory effect of β2-adrenergic receptor (Adrb2) signaling. We also examined the effects of salbutamol (a selective Adrb2 agonist) in LPS-induced systemic inflammation and renal IRI. Macrophage-specific Adrb2 conditional knockout (cKO) mice and the adoptive transfer of salbutamol-treated macrophages were used to assess the involvement of macrophage Adrb2 signaling. RESULTS In vitro, activation of Adrb2 signaling in macrophages induced the expression of T cell Ig and mucin domain 3 (Tim3), which contributes to anti-inflammatory phenotypic alterations. In vivo, salbutamol administration blocked LPS-induced systemic inflammation and protected against renal IRI; this protection was mitigated in macrophage-specific Adrb2 cKO mice. The adoptive transfer of salbutamol-treated macrophages also protected against renal IRI. Single-cell RNA sequencing revealed that this protection was associated with the accumulation of Tim3-expressing macrophages in the renal tissue. CONCLUSIONS The activation of Adrb2 signaling in macrophages induces anti-inflammatory phenotypic alterations partially via the induction of Tim3 expression, which blocks LPS-induced systemic inflammation and protects against renal IRI.
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Affiliation(s)
- Sho Hasegawa
- Division of Nephrology and Endocrinology, University of Tokyo Graduate School of Medicine, Tokyo, Japan,Division of CKD Pathophysiology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Tsuyoshi Inoue
- Division of CKD Pathophysiology, University of Tokyo Graduate School of Medicine, Tokyo, Japan,Department of Physiology of Visceral Function and Body Fluid, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Yasuna Nakamura
- Division of Nephrology and Endocrinology, University of Tokyo Graduate School of Medicine, Tokyo, Japan,Department of Physiology of Visceral Function and Body Fluid, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Daichi Fukaya
- Division of CKD Pathophysiology, University of Tokyo Graduate School of Medicine, Tokyo, Japan,Department of Nephrology, Saitama Medical University, Saitama, Japan
| | - Rie Uni
- Division of Nephrology and Endocrinology, University of Tokyo Graduate School of Medicine, Tokyo, Japan,Division of CKD Pathophysiology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Chia-Hsien Wu
- Division of Nephrology and Endocrinology, University of Tokyo Graduate School of Medicine, Tokyo, Japan,Department of Physiology of Visceral Function and Body Fluid, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Rie Fujii
- Division of Nephrology and Endocrinology, University of Tokyo Graduate School of Medicine, Tokyo, Japan,Division of CKD Pathophysiology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Wachirasek Peerapanyasut
- Division of CKD Pathophysiology, University of Tokyo Graduate School of Medicine, Tokyo, Japan,Mahidol University, Nakhonsawan Campus, Nakhonsawan, Thailand
| | - Akashi Taguchi
- Isotope Science Center, University of Tokyo, Tokyo, Japan
| | - Takahide Kohro
- Department of Clinical Informatics/Cardiology, Jichi Medical University, Tochigi, Japan
| | - Shintaro Yamada
- Department of Cardiovascular Medicine, University of Tokyo Graduate School of Medicine, Tokyo, Japan,Genome Science Division, Research Center for Advanced Science and Technologies, University of Tokyo, Tokyo, Japan
| | - Mikako Katagiri
- Department of Cardiovascular Medicine, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Toshiyuki Ko
- Department of Cardiovascular Medicine, University of Tokyo Graduate School of Medicine, Tokyo, Japan,Genome Science Division, Research Center for Advanced Science and Technologies, University of Tokyo, Tokyo, Japan
| | - Seitaro Nomura
- Department of Cardiovascular Medicine, University of Tokyo Graduate School of Medicine, Tokyo, Japan,Genome Science Division, Research Center for Advanced Science and Technologies, University of Tokyo, Tokyo, Japan
| | | | - Etsuo A. Susaki
- Department of Systems Pharmacology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan,Laboratory for Synthetic Biology, RIKEN Center for Biosystems Dynamics Research, Suita, Japan
| | - Hiroki R. Ueda
- Department of Systems Pharmacology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan,Laboratory for Synthetic Biology, RIKEN Center for Biosystems Dynamics Research, Suita, Japan
| | | | - Youichiro Wada
- Isotope Science Center, University of Tokyo, Tokyo, Japan
| | - Issei Komuro
- Department of Cardiovascular Medicine, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Masaomi Nangaku
- Division of Nephrology and Endocrinology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Reiko Inagi
- Division of CKD Pathophysiology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
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4
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Fujii R, Morinaga K, Asai T, Aida N, Yamada M, Sako R, Furusawa M. Intentional Replantation to Treat Apical Periodontitis of Maxillary First Molar with Foreign Body Located Outside Apical Foramen Using CBCT: A Case Report. Bull Tokyo Dent Coll 2020; 61:127-133. [PMID: 32507779 DOI: 10.2209/tdcpublication.2019-0016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The recent use of cone beam computed tomography (CBCT) in the field of dentistry to obtain 3-dimensional (3D) images has enabled more effective examination and diagnosis in endodontic treatment. Such information has also been reported to be of benefit in surgical endodontic treatment such as intentional replantation. Here, we report a case of intentional replantation with the assistance of CBCT in which a good therapeutic outcome was achieved. The patient was a 30-year-old woman who visited our hospital with the chief complaint of spontaneous pain in the right maxillary first molar. Dental radiographs revealed a radiolucent area in the apical portion of the distal root, and a radiopaque area thought to be a broken shard from a small surgical instrument measuring approximately 1.5 mm in length. The shard was located outside the distal apical foramen. Based on these findings, the diagnosis was acute suppurative apical periodontitis of the right maxillary first molar. Infected root canal therapy was subsequently commenced. The patient's symptoms showed no improvement, however, and the pain persisted. Therefore, dental CBCT was performed to obtain 3D images, which confirmed a radiopaque area thought to be a broken shard from a small surgical instrument located outside the apical foramen of the distal root and facing in a direction that made it impossible to remove from the root canal. Because the patient's symptoms had shown no improvement and a foreign body was observed outside the apical foramen, intentional replantation combined with root resection was performed with informed consent. At a 1-year follow-up visit, progress was good, and there were no reported symptoms or signs. When reaching a diagnosis is difficult based on clinical findings and dental radiographs alone, the 3D images provided by CBCT offer a means of securing a more reliable diagnosis, allowing planning of treatment to be more effective.
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Affiliation(s)
- Rie Fujii
- Department of Endodontics, Tokyo Dental College
| | | | - Tomohiro Asai
- Department of Endodontics, Tokyo Dental College.,Department of Endodontics, Tokyo Dental College
| | | | | | - Ryo Sako
- Department of Endodontics, Tokyo Dental College
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5
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Tanaka I, Saito H, Matsuda T, Matsumoto T, Munehisa Y, Fujii R, Hirasawa D. Massive esophageal hemorrhage after a MitraClip procedure successfully treated by balloon compression. Clin J Gastroenterol 2020; 13:693-696. [PMID: 32588330 DOI: 10.1007/s12328-020-01160-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 06/03/2020] [Indexed: 11/26/2022]
Abstract
MitraClip procedure is an effective treatment for mitral regurgitation, performed globally. During the MitraClip procedure, transesophageal echocardiography is an essential modality to perform the operation safely. Although a few transesophageal echocardiography-related complications, such as esophageal hematoma, have been reported, there are no reports on massive esophageal bleeding after the MitraClip procedure. We present the first case of massive esophageal hemorrhage caused by transesophageal echocardiography after a MitraClip procedure and the successful treatment by balloon compression using a Sengstaken-Blakemore tube.
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Affiliation(s)
- Ippei Tanaka
- Department of Gastroenterology, Sendai Kousei Hospital, 4-15, Hirose-machi, Aoba-ku, Sendai, Miyagi, 980-0873, Japan.
| | - Hiroaki Saito
- Department of Gastroenterology, Sendai Kousei Hospital, 4-15, Hirose-machi, Aoba-ku, Sendai, Miyagi, 980-0873, Japan
| | - Tomoki Matsuda
- Department of Gastroenterology, Sendai Kousei Hospital, 4-15, Hirose-machi, Aoba-ku, Sendai, Miyagi, 980-0873, Japan
| | - Takashi Matsumoto
- Department of Cardiology, Sendai Kousei Hospital, 4-15, Hirose-machi, Aoba-ku, Sendai, Miyagi, 980-0873, Japan
| | - Yoshiko Munehisa
- Department of Cardiology, Sendai Kousei Hospital, 4-15, Hirose-machi, Aoba-ku, Sendai, Miyagi, 980-0873, Japan
| | - Rie Fujii
- Department of Gastroenterology, Sendai Kousei Hospital, 4-15, Hirose-machi, Aoba-ku, Sendai, Miyagi, 980-0873, Japan
| | - Dai Hirasawa
- Department of Gastroenterology, Sendai Kousei Hospital, 4-15, Hirose-machi, Aoba-ku, Sendai, Miyagi, 980-0873, Japan
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6
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Uni R, Inoue T, Nakamura Y, Fukaya D, Hasegawa S, Wu CH, Fujii R, Surattichaiyakul B, Peerapanyasut W, Ozeki A, Akimitsu N, Wada Y, Nangaku M, Inagi R. Vagus nerve stimulation even after injury ameliorates cisplatin-induced nephropathy via reducing macrophage infiltration. Sci Rep 2020; 10:9472. [PMID: 32528023 PMCID: PMC7290038 DOI: 10.1038/s41598-020-66295-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 05/15/2020] [Indexed: 01/25/2023] Open
Abstract
The efficacy of prior activation of an anti-inflammatory pathway called the cholinergic anti-inflammatory pathway (CAP) through vagus nerve stimulation (VNS) has been reported in renal ischemia-reperfusion injury models. However, there have been no reports that have demonstrated the effectiveness of VNS after injury. We investigated the renoprotective effect of VNS in a cisplatin-induced nephropathy model. C57BL/6 mice were injected with cisplatin, and VNS was conducted 24 hours later. Kidney function, histology, and a kidney injury marker (Kim-1) were evaluated 72 hours after cisplatin administration. To further explore the role of the spleen and splenic macrophages, key players in the CAP, splenectomy, and adoptive transfer of macrophages treated with the selective α7 nicotinic acetylcholine receptor agonist GTS-21 were conducted. VNS treatment significantly suppressed cisplatin-induced kidney injury. This effect was abolished by splenectomy, while adoptive transfer of GTS-21-treated macrophages improved renal outcomes. VNS also reduced the expression of cytokines and chemokines, including CCL2, which is a potent chemokine attracting monocytes/macrophages, accompanied by a decline in the number of infiltrating macrophages. Taken together, stimulation of the CAP protected the kidney even after injury in a cisplatin-induced nephropathy model. Considering the feasibility and anti-inflammatory effects of VNS, the findings suggest that VNS may be a promising therapeutic tool for acute kidney injury.
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Affiliation(s)
- Rie Uni
- Division of Nephrology and Endocrinology, The University of Tokyo Graduate, School of Medicine, Bunkyo-ku, Tokyo, 113-8655, Japan.,Division of CKD, Pathophysiology, The University of Tokyo Graduate School of Medicine, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Tsuyoshi Inoue
- Division of CKD, Pathophysiology, The University of Tokyo Graduate School of Medicine, Bunkyo-ku, Tokyo, 113-8655, Japan.
| | - Yasuna Nakamura
- Division of Nephrology and Endocrinology, The University of Tokyo Graduate, School of Medicine, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Daichi Fukaya
- Division of CKD, Pathophysiology, The University of Tokyo Graduate School of Medicine, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Sho Hasegawa
- Division of Nephrology and Endocrinology, The University of Tokyo Graduate, School of Medicine, Bunkyo-ku, Tokyo, 113-8655, Japan.,Division of CKD, Pathophysiology, The University of Tokyo Graduate School of Medicine, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Chia-Hsien Wu
- Division of Nephrology and Endocrinology, The University of Tokyo Graduate, School of Medicine, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Rie Fujii
- Division of Nephrology and Endocrinology, The University of Tokyo Graduate, School of Medicine, Bunkyo-ku, Tokyo, 113-8655, Japan.,Division of CKD, Pathophysiology, The University of Tokyo Graduate School of Medicine, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Bongkod Surattichaiyakul
- Division of CKD, Pathophysiology, The University of Tokyo Graduate School of Medicine, Bunkyo-ku, Tokyo, 113-8655, Japan
| | | | - Atsuko Ozeki
- Isotope Science Center, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0032, Japan
| | - Nobuyoshi Akimitsu
- Isotope Science Center, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0032, Japan
| | - Youichiro Wada
- Isotope Science Center, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0032, Japan
| | - Masaomi Nangaku
- Division of Nephrology and Endocrinology, The University of Tokyo Graduate, School of Medicine, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Reiko Inagi
- Division of CKD, Pathophysiology, The University of Tokyo Graduate School of Medicine, Bunkyo-ku, Tokyo, 113-8655, Japan
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Hosokawa K, Miyoshi Y, Ozaki M, Oyama SI, Ogawa Y, Kurita S, Kasahara Y, Kasaba Y, Yagitani S, Matsuda S, Tsuchiya F, Kumamoto A, Kataoka R, Shiokawa K, Raita T, Turunen E, Takashima T, Shinohara I, Fujii R. Multiple time-scale beats in aurora: precise orchestration via magnetospheric chorus waves. Sci Rep 2020; 10:3380. [PMID: 32098993 PMCID: PMC7042315 DOI: 10.1038/s41598-020-59642-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 01/31/2020] [Indexed: 11/26/2022] Open
Abstract
The brightness of aurorae in Earth’s polar region often beats with periods ranging from sub-second to a few tens of a second. Past observations showed that the beat of the aurora is composed of a superposition of two independent periodicities that co-exist hierarchically. However, the origin of such multiple time-scale beats in aurora remains poorly understood due to a lack of measurements with sufficiently high temporal resolution. By coordinating experiments using ultrafast auroral imagers deployed in the Arctic with the newly-launched magnetospheric satellite Arase, we succeeded in identifying an excellent agreement between the beats in aurorae and intensity modulations of natural electromagnetic waves in space called “chorus”. In particular, sub-second scintillations of aurorae are precisely controlled by fine-scale chirping rhythms in chorus. The observation of this striking correlation demonstrates that resonant interaction between energetic electrons and chorus waves in magnetospheres orchestrates the complex behavior of aurora on Earth and other magnetized planets.
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Affiliation(s)
- K Hosokawa
- Graduate School of Informatics and Engineering, University of Electro-Communications, Chofu, Tokyo, Japan. .,Center for Space Science and Radio Engineering, University of Electro-Communications, Chofu, Tokyo, Japan.
| | - Y Miyoshi
- Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Aichi, Japan
| | - M Ozaki
- Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - S-I Oyama
- Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Aichi, Japan.,National Institute of Polar Research, Tachikawa, Tokyo, Japan.,Ionospheric Physics Research Unit, University of Oulu, Oulu, Finland
| | - Y Ogawa
- National Institute of Polar Research, Tachikawa, Tokyo, Japan.,The Graduate University for Advanced Studies, Hayama, Kanagawa, Japan
| | - S Kurita
- Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Aichi, Japan
| | - Y Kasahara
- Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Y Kasaba
- Department of Geophysics, Graduate School of Science, Tohoku University, Sendai, Miyagi, Japan
| | - S Yagitani
- Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - S Matsuda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara, Kanagawa, Japan
| | - F Tsuchiya
- Department of Geophysics, Graduate School of Science, Tohoku University, Sendai, Miyagi, Japan
| | - A Kumamoto
- Department of Geophysics, Graduate School of Science, Tohoku University, Sendai, Miyagi, Japan
| | - R Kataoka
- National Institute of Polar Research, Tachikawa, Tokyo, Japan.,The Graduate University for Advanced Studies, Hayama, Kanagawa, Japan
| | - K Shiokawa
- Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Aichi, Japan
| | - T Raita
- Sodankylä Geophysical Observatory, University of Oulu, Sodankylä, Finland
| | - E Turunen
- Sodankylä Geophysical Observatory, University of Oulu, Sodankylä, Finland
| | - T Takashima
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara, Kanagawa, Japan
| | - I Shinohara
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara, Kanagawa, Japan
| | - R Fujii
- Research Organization of Information and Systems, Tokyo, Japan
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8
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Maekawa H, Inoue T, Ouchi H, Jao TM, Inoue R, Nishi H, Fujii R, Ishidate F, Tanaka T, Tanaka Y, Hirokawa N, Nangaku M, Inagi R. Mitochondrial Damage Causes Inflammation via cGAS-STING Signaling in Acute Kidney Injury. Cell Rep 2019; 29:1261-1273.e6. [DOI: 10.1016/j.celrep.2019.09.050] [Citation(s) in RCA: 162] [Impact Index Per Article: 32.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 09/01/2019] [Accepted: 09/18/2019] [Indexed: 12/19/2022] Open
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9
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Matsunaga S, Yamada M, Kasahara N, Kasahara M, Odaka K, Fujii R, Miyayoshi N, Sekiya S, Sako R, Sugiuchi A, Abe S, Furusawa M. Tooth Root Cross-section Variations of Significance for Endodontic Microsurgery and Predicted Risk of Concealed Canal Isthmus Based on Cross-sectional Morphology: Three-dimensional Morphological Analysis of Japanese Maxillary First Molars Using Micro-CT. J HARD TISSUE BIOL 2019. [DOI: 10.2485/jhtb.28.153] [Citation(s) in RCA: 1] [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: 10/27/2022]
Affiliation(s)
| | | | - Norio Kasahara
- Department of Forensic Odontology and Anthropology, Tokyo Dental College
| | | | - Kento Odaka
- Department of Oral and Maxillofacial Radiology, Tokyo Dental College
| | - Rie Fujii
- Department of Endodontics, Tokyo Dental College
| | | | - Sayo Sekiya
- Department of Endodontics, Tokyo Dental College
| | - Ryo Sako
- Department of Endodontics, Tokyo Dental College
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10
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Ishida S, Horiuchi S, kuroda Y, Fujii R, Kim SR, Kanda Y. DNA microarray analysis on characteristics of hepatocyte-like cells derived from human iPS cells for the application to the cell based drug safety tests. Toxicol Lett 2018. [DOI: 10.1016/j.toxlet.2018.06.957] [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: 10/28/2022]
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11
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Affiliation(s)
- P. M. Huang
- University of Saskatchewan; Saskatoon Saskatchewan Canada
| | - R. Fujii
- U. S. Department of the Interior, Geological Survey; Sacramento California
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12
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Tanaka A, Hayashi T, Nakazono M, Akiyama H, Muramatsu M, Fujii R, Osakabe H, Hara K, Nagasawa S, Kumazu Y, Oshima T, Yamada T, Ogata T, Yoshikawa T. Alternation of dietary ingestion after gastrectomy: Investigated using food frequency questionnaire with 82-food items. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2018.06.1571] [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: 11/15/2022]
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13
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Nakazono M, Hayashi T, Akiyama H, Muramatsu M, Tanaka A, Fujii R, Osakabe H, Hara K, Shimoda Y, Nagasawa S, Kumazu Y, Yamada T, Rino Y, Masuda M, Oshima T, Ogata T, Yoshikawa T. Comparison of dietary intake alternation between total and distal gastrectomy. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2018.06.1979] [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: 10/28/2022]
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Kawamura T, Fujii R, Li X, Higashida K, Muraoka I. Effects of exhaustive exercises, with different intensities, on oxidative stress markers in rat plasma and skeletal muscle. Sci Sports 2018. [DOI: 10.1016/j.scispo.2017.08.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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15
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Fujii R, Wong HC, Schlom J, Hodge JW. Abstract P3-05-04: An IL-15 superagonist enhances antibody-dependent cell-mediated cytotoxicity against breast cancer cells regardless of FCGR3A (CD16) genotype and rescues NK cell from TGF-β1-induced immunosuppression. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p3-05-04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
It has been reported that the Natural killer (NK) cell with FCGR3A (CD16a) V genotype is associated with enhanced clinical response to IgG1 monoclonal Ab (mAb) therapy such as trastuzumab, rituximab and cetuximab (1,2), suggesting a role of antibody-dependent cell-mediated cytotoxicity (ADCC) induced by NK cells. NK cells express three types of polymorphism of CD16; FcγRIIIa-158 VV, VF, FF, which are derived from the genotype of FCGR3A. It is a clinical challenge to improve the outcome in patients with FCGR3A 158FF genotype whose NK cells have lower affinity to mAb and mediate poor ADCC activity. The IL-15 superagonist/IL-15Rα-Fc fusion complex (ALT-803) activates the IL-15 receptor on CD8 T cells and NK cells, inducing their expansion, cytotoxity, and ADCC against B cell lymphoma (3, 4, 5).
Here, we examined the effect of ALT803 on NK cell-mediated ADCC activity by the the anti-HER2 IgG1 mAb trastuzumab in HER2+ cell lines (SKBR3, BT474, MDA-MB-453). In addition, we used the anti-epidermal growth factor receptor(EGFR) IgG1 mAb cetuximab in EGFR positive TNBC cell lines (MDA-MB-231, SUM149, BT549). Finally, we examined the anti-PD-L1 IgG1 mAb avelumab was used for PD-L1 positive breast cancer cell lines (MDA-MB-231, BT549). Trastuzumab, cetuximab, and avelumab all significantly increased NK cell-induced lysis via ADCC. ALT803 significantly further increased both NK induced lysis and ADCC activity in all the cell lines. There was a significant positive correlation for the mean of ADCC lysis induced by NK cells from three FF (21%), three VF (33%), three VV (45%) donors. ALT803 significantly increased the mean of ADCC lysis by NK cells from all donors of each genotype to the same extent. ALT803 increased the expression of NK cell-activating receptors and cytotoxic granules regardless of the genotype of NK cell FCGR3A in terms VV, VF, or FF.
We further examined the potential of ALT803 for NK cell-cytotoxicity suppressed by TGF-β1 which is one of the main barriers to immunity in the tumor microenvionment (TME). NK cells treated with TGF-β1 showed lower expression of activating receptors and cytotoxic granules, culminating in decreased lysis of MDA-MB231. ALT803 inhibited TGF-β1 from down-regulating the expression of NK cell-activating receptors and cytotoxic granules, and from suppressing the cytotoxicity of NK cells to MDA-MB231.
In conclusion, the IL-15 superagonist ALT803 can potentially increase the clinical benefit of ADCC-based mAb therapy for breast cancer patients, regardless of the genotype of FCGR3A. Moreover, ALT803 prevented NK cell-cytotoxity from TGF-β1-induced suppression, providing a rationale for ALT803 therapy to overcome TME-mediated immunosuppression.
References
(1) Gavin et. al. JAMA Oncol.2017;3(3)
(2) Musolino et. al. J Clin Oncol.2008;26(33)
(3) Xu et. al. Cancer Res.2013;73(10)
(4) Kim et. al. Oncotarget.2016;7(13)
(5) Rosario et. al. Clin. Cancer Res. 2016; 22(3)
Citation Format: Fujii R, Wong HC, Schlom J, Hodge JW. An IL-15 superagonist enhances antibody-dependent cell-mediated cytotoxicity against breast cancer cells regardless of FCGR3A (CD16) genotype and rescues NK cell from TGF-β1-induced immunosuppression [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P3-05-04.
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Affiliation(s)
- R Fujii
- Laboratory of Tumor Immunology and Biology, National Cancer Institute, NIH, Bethesda, MD; Altor BioScience Corporation, Miramar, FL
| | - HC Wong
- Laboratory of Tumor Immunology and Biology, National Cancer Institute, NIH, Bethesda, MD; Altor BioScience Corporation, Miramar, FL
| | - J Schlom
- Laboratory of Tumor Immunology and Biology, National Cancer Institute, NIH, Bethesda, MD; Altor BioScience Corporation, Miramar, FL
| | - JW Hodge
- Laboratory of Tumor Immunology and Biology, National Cancer Institute, NIH, Bethesda, MD; Altor BioScience Corporation, Miramar, FL
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Fujii R, Suehara M, Sekiya S, Miyayoshi N, Asai T, Morinaga K, Muramatsu T, Furusawa M. CBCT-based Diagnosis of Periapical Lesion of Maxillary First Premolar Mimicking That of Second Premolar. Bull Tokyo Dent Coll 2017; 57:291-297. [PMID: 28049977 DOI: 10.2209/tdcpublication.2016-1900] [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: 11/06/2022]
Abstract
Apical periodontitis is usually diagnosed based on clinical findings and dental X-rays. Recently, however, dental cone beam computed tomography (CBCT), which provides 3-D images of the maxillofacial region, has enabled dentists to examine patients undergoing endodontic therapy more effectively, improving diagnostic accuracy. Here, we describe a positive treatment outcome achieved using CBCT to diagnose apical periodontitis of the maxillary premolars, which had proven difficult to diagnose based on clinical findings and dental radiography alone. The patient was a 42-year-old Japanese man who presented with the chief complaint of gingival swelling in the maxillary right premolar region. Our initial diagnosis, based on clinical findings and dental X-ray, was apical periodontitis of the maxillary right second premolar, and treatment was started. However, after the patient failed to respond to the treatment, CBCT was performed. Based on these new findings, the diagnosis was changed to one of apical periodontitis of the upper right first premolar, and the patient was treated accordingly. Previous studies have described the complex anatomical morphology of the upper premolars, noting multiple roots and variation in the morphology of the root canals. The 3-D images provided by dental CBCT allow better assessment of oral conditions than the traditional 2-D images provided by dental X-rays, which in turn enables the dentist to better select the most appropriate treatment. Here, the patient showed no symptoms and was progressing well at a 6-month follow-up visit. The present results indicate that when clinical findings and dental X-rays alone are insufficient to allow a secure diagnosis, CBCT offers an effective alternative which will enable the appropriate treatment to be selected more reliably.
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Affiliation(s)
- Rie Fujii
- Department of Endodontics and Clinical Cariology, Tokyo Dental College
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17
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Fujii R, Muramatsu T, Yamaguchi Y, Asai T, Aida N, Suehara M, Morinaga K, Furusawa M. An endodontic-periodontal lesion with primary periodontal disease: a case report on its bacterial profile. Bull Tokyo Dent Coll 2016; 55:33-7. [PMID: 24717928 DOI: 10.2209/tdcpublication.55.33] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The microflora in the periodontal pockets can affect the dental pulp and cause endodontic-periodontal lesions or retrograde pulpitis. Here we report an endodontic-periodontal lesion together with its bacterial profile. The lesion occurred in the maxillary right first molar of a 40-year-old woman who presented at our hospital complaining of a violent toothache since the previous night. Clinically, the tooth was caries-free and an electric pulp test showed it to be vital. The tooth showed signs of advanced periodontitis and the periodontal pocket was deep, reaching the apex of the palatal root. The clinical diagnosis was an endodontic-periodontal lesion with primary periodontal disease. Subsequent endodontic treatment comprised pulp extirpation and root canal filling, followed by periodontal treatment consisting of scaling and root planing. The tooth was finally restored with a full metal crown. No further signs of periodontal disease or periapical lesions have been observed to date. Bacteria were sampled from the root canal and periodontal pocket for a microbiological assessment using 16S rRNA gene-based PCR. Microbiologically, the profile of the bacterial species from the palatal root canal was similar to that from the periodontal pocket of the palatal root. Porphyromonas gingivalis, Fusobacterium nucleatum and Eikenella corrodens were detected in both samples. The occurrence of bacteria common to both sites in this patient further supports the proposition that periodontal disease is the definitive source of root canal infections. The present results suggest that a bacterial examination would be helpful in confirming and supporting the clinical diagnosis in such lesions.
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Affiliation(s)
- Rie Fujii
- Department of Endodontics and Clinical Cariology, Tokyo Dental College
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18
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Narita M, Shibahara T, Takano N, Fujii R, Okuda K, Ishihara K. Antimicrobial Susceptibility of Microorganisms Isolated from Periapical Periodontitis Lesions. Bull Tokyo Dent Coll 2016; 57:133-42. [DOI: 10.2209/tdcpublication.2015-0018] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Masato Narita
- Department of Oral and Maxillofacial Surgery, Tokyo Dental College
| | | | - Nobuo Takano
- Department of Oral and Maxillofacial Surgery, Tokyo Dental College
| | - Rie Fujii
- Department of Endodontics and Clinical Cariology, Tokyo Dental College
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19
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Fujii R. The Relationship between Leisure-Time Exercise and Lipid Profiles is Affected by
Q192R
Polymorphisms of Paraoxonase-1 among Japanese Women. Int J Epidemiol 2015. [DOI: 10.1093/ije/dyv096.175] [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: 11/14/2022] Open
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20
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Suehara M, Sano Y, Sako R, Aida N, Fujii R, Muramatsu T, Furusawa M. Microscopic Endodontics in Infected Root Canal with Calcified Structure: A Case Report. Bull Tokyo Dent Coll 2015; 56:169-75. [PMID: 26370577 DOI: 10.2209/tdcpublication.56.169] [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] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Calcium deposited within a root canal due to exogenous stimuli may hamper root canal treatment. In endodontic treatment, an operating microscope allows the conditions within the root canal to be directly viewed and evaluated. This report describes a case in which an operating microscope was used to facilitate the excision of a calcified structure from within a root canal at an early stage in the treatment of an infection. An 18-year-old man was referred to our clinic due to suspected chronic suppurative apical periodontitis of the right maxillary central incisor. Periapical radiography confirmed the presence of a radioopaque structure inside the root canal that was likely to pose an obstacle to endodontic treatment. After opening the pulp chamber, an operating microscope was used to directly confirm the presence of the calcified structure in the root canal, which was removed using an ultrasonic tip. The infected root canal was treated using calcium hydroxide. Two months later, closure of the apical foramen as a result of calcification of the apical foramen was confirmed and the root canal filled. Using an operating microscope to directly view a structure posing an obstacle to root canal treatment made it possible to perform an excision while avoiding risks such as canal perforation.
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Affiliation(s)
- Masataka Suehara
- Department of Endodontics and Clinical Cariology, Tokyo Dental College
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21
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Kosumi D, Maruta S, Fujii R, Sugisaki M, Takaichi S, Cogdell RJ, Hashimoto H. A Regulation of Energy Flow in Purple Bacterial Photosynthetic Antennas. Springer Proceedings in Physics 2015. [DOI: 10.1007/978-3-319-13242-6_140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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22
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Takemoto N, Koyanagi A, Yamamoto H, Shimura K, Fujii R. Comparison of the Indocyanine Green Dye Method Versus the Combined Method of Indigo Carmine Blue Dye with Indocyanine Green Fluorescence Imaging for Sentinel Lymph Node Biopsy in Patients with Stage I Or II Breast Cancer. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu063.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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23
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Fujii R, Hanamura T, Niwa T, Yamaguchi Y, Ishida T, Sasano H, Ohuchi N, Hayashi SI. Abstract P5-09-10: Androgen receptor signal acquired oncogenic role in aromatase inhibitor resistant model of breast cancer cell. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p5-09-10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Aromatase inhibitors (AI) are the common treatment for postmenopausal estrogen receptor (ER) positive breast cancer. However, not a few of these patients acquire resistance to AI.To investigate this molecular mechanism of resistance, we have established several breast cancer cell lines as AI resistant models. Recently, we reported on AD-EDR cells (androgen metabolite-dependent and estrogen depletion resistant cells) derived from MCF-7, in which ER activity depends on one of androgen metabolite, 5a-androstane-3β, 17β-diol (3βdiol).
It is supposed that tumor heterogeneity contributes to the acquired resistance to drugs.To examine this diversity, we established another AI resistant model derived from T-47D, to compare characters of these AI resistant models from different parents. Then, we found that the androgen receptor (AR) signal acquired oncogenic role in this model in contrast to AD-EDR cells established from MCF-7.
We cultured ER positive breast cancer cells, T47D-TE8, stably transfected with ERE-GFP reporter into T47D, under estrogen-depleted and androgen-supplemented conditions for more than three months, simulating the AI treatment, and established estrogen deprivation-resistant cells (TE8-EDR cells).
TE8-EDR cells had little ERE-GFP activity and proliferation response to estrogen though estrogen stimulated proliferation of parental T47D-TE8. The mRNA for ER and progesterone receptor was hardly detected in TE8-EDR cells. These results suggested that they had lost the ER-mediated pathway of growth. On the contrary, Dihydrotestosterone (DHT) increased growth of T47D-TE8 cells, while it was more remarkable in TE8-EDR, and this proliferative effect was reduced by AR antagonist, bicalutamide. The mRNA expressions of AR and its target gene, PSA, were extremely increased in TE8-EDR cells. These results indicated that TE8-EDR enhanced AR-regulated pathway for growth.
Increased AR expression was presumed to be one of the factors elevating AR activity. To identify other elements enhancing AR-mediated signal, we compared the gene expression of TE8-EDR cells with that of T47D-TE8 by microarray analysis. The outcome showed that the expression of some well-known androgen-related genes were increased in TE8-EDR cells. Among these genes, we focused on DDC (L-dopa decarboxylase) which has been reported as one of the AR coactivator, and its overexpression increase proliferative effect in prostate cancer cell lines.By real-time RT-PCR, we confirmed that the mRNA expression of DDC in TE8-EDR was higher over one-hundred fold than T47D-TE8. In addition, DHT-induced proliferation was cancelled by DDC inhibitor, NSD-1015.
This study suggests that TE8-EDR cells shift their growth pathway from ER to AR signal, and the AR activity is enhanced by high-expression of DDC. Whereas, MCF7-derived AD-EDR cells still depends on ER signal for their proliferation. So far, few studies have shown the proliferative effects of androgen as AI resistant mechanism. Our results provide new mechanism of acquired AI-resistance in breast cancer. Moreover, the fact that the character of AI resistant models varied with their parent cells supports the hypothesis that tumor heterogeneity contributes to diversify the mechanism of acquired resistance to hormonal therapy.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P5-09-10.
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Affiliation(s)
- R Fujii
- Graduate School of Medicine, Tohoku University, Sendai, Japan; Graduate School of Medicine, Shinsyu University, Matsumoto, Japan; Research Institute for Clinical Oncology, Saitama Cancer Center, Saitama, Japan
| | - T Hanamura
- Graduate School of Medicine, Tohoku University, Sendai, Japan; Graduate School of Medicine, Shinsyu University, Matsumoto, Japan; Research Institute for Clinical Oncology, Saitama Cancer Center, Saitama, Japan
| | - T Niwa
- Graduate School of Medicine, Tohoku University, Sendai, Japan; Graduate School of Medicine, Shinsyu University, Matsumoto, Japan; Research Institute for Clinical Oncology, Saitama Cancer Center, Saitama, Japan
| | - Y Yamaguchi
- Graduate School of Medicine, Tohoku University, Sendai, Japan; Graduate School of Medicine, Shinsyu University, Matsumoto, Japan; Research Institute for Clinical Oncology, Saitama Cancer Center, Saitama, Japan
| | - T Ishida
- Graduate School of Medicine, Tohoku University, Sendai, Japan; Graduate School of Medicine, Shinsyu University, Matsumoto, Japan; Research Institute for Clinical Oncology, Saitama Cancer Center, Saitama, Japan
| | - H Sasano
- Graduate School of Medicine, Tohoku University, Sendai, Japan; Graduate School of Medicine, Shinsyu University, Matsumoto, Japan; Research Institute for Clinical Oncology, Saitama Cancer Center, Saitama, Japan
| | - N Ohuchi
- Graduate School of Medicine, Tohoku University, Sendai, Japan; Graduate School of Medicine, Shinsyu University, Matsumoto, Japan; Research Institute for Clinical Oncology, Saitama Cancer Center, Saitama, Japan
| | - S-I Hayashi
- Graduate School of Medicine, Tohoku University, Sendai, Japan; Graduate School of Medicine, Shinsyu University, Matsumoto, Japan; Research Institute for Clinical Oncology, Saitama Cancer Center, Saitama, Japan
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24
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Hagiwara R, Suehara M, Fujii R, Kato H, Nakagawa KI, Oda Y. Laser Welding Method for Removal of Instruments Debris from Root Canals. Bull Tokyo Dent Coll 2013; 54:81-8. [DOI: 10.2209/tdcpublication.54.81] [Citation(s) in RCA: 5] [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] [Indexed: 11/06/2022]
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25
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Yoshimatsu O, Abe K, Sakai S, Horibe T, Fujii R, Nango M, Hashimoto H, Yoshizawa M. Dark excited states of carotenoid in light harvesting complex probing with femtosecond stimulated Raman spectroscopy. EPJ Web of Conferences 2013. [DOI: 10.1051/epjconf/20134108007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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26
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Makinoda S, Shibata T, Neyatani N, Waseda T, Takagi H, Fujii R. O428 AN EFFECTIVE TREATMENT AGAINST LUTEINIZED UNRUPTURED FOLLICLE (LUF) USING GRANULOCYTE COLONY-STIMULATING FACTOR (G-CSF). Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)60858-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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27
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Kosumi D, Kita M, Fujii R, Sugisaki M, Oka N, Takaesu Y, Taira T, Iha M, Hashimoto H. Excitation Energy-Transfer Dynamics of Brown Algal Photosynthetic Antennas. J Phys Chem Lett 2012; 3:2659-2664. [PMID: 26295888 DOI: 10.1021/jz300612c] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [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: 06/04/2023]
Abstract
Fucoxanthin-chlorophyll-a/c protein (FCP) complexes from brown algae Cladosiphon okamuranus TOKIDA (Okinawa Mozuku in Japanese) contain the only species of carbonyl carotenoid, fucoxanthin, which exhibits spectral characteristics attributed to an intramolecular charge-transfer (ICT) property that arises in polar environments due to the presence of the carbonyl group in its polyene backbone. Here, we investigated the role of the ICT property of fucoxanthin in ultrafast energy transfer to chlorophyll-a/c in brown algal photosynthesis using femtosecond pump-probe spectroscopic measurements. The observed excited-state dynamics show that the ICT character of fucoxanthin in FCP extends its absorption band to longer wavelengths and enhances its electronic interaction with chlorophyll-a molecules, leading to efficient energy transfer from fucoxanthin to chlorophyll-a.
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Affiliation(s)
- D Kosumi
- †The Osaka City University Advanced Research Institute for Natural Science and Technology (OCARINA), 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
- ‡JST/CREST, 4-1-8 Hon-chou, Kawaguchi, Saitama 332-0012, Japan
| | - M Kita
- ‡JST/CREST, 4-1-8 Hon-chou, Kawaguchi, Saitama 332-0012, Japan
- §Department of Physics, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - R Fujii
- †The Osaka City University Advanced Research Institute for Natural Science and Technology (OCARINA), 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
- ⊥JST/PRESTO, 4-1-8 Hon-chou, Kawaguchi, Saitama 332-0012, Japan
| | - M Sugisaki
- ‡JST/CREST, 4-1-8 Hon-chou, Kawaguchi, Saitama 332-0012, Japan
- §Department of Physics, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - N Oka
- #South Product Co. Ltd., 12-75 Suzaki, Uruma-shi, Okinawa 904-2234, Japan
| | - Y Takaesu
- #South Product Co. Ltd., 12-75 Suzaki, Uruma-shi, Okinawa 904-2234, Japan
| | - T Taira
- #South Product Co. Ltd., 12-75 Suzaki, Uruma-shi, Okinawa 904-2234, Japan
| | - M Iha
- #South Product Co. Ltd., 12-75 Suzaki, Uruma-shi, Okinawa 904-2234, Japan
| | - H Hashimoto
- †The Osaka City University Advanced Research Institute for Natural Science and Technology (OCARINA), 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
- ‡JST/CREST, 4-1-8 Hon-chou, Kawaguchi, Saitama 332-0012, Japan
- §Department of Physics, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
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Fujii R, Fujimoto M, Nakane J, Kuga M. P-656 - Maintaining involvement as an effective method for the treatment of the criminally insane with drug dependence. Eur Psychiatry 2012. [DOI: 10.1016/s0924-9338(12)74823-x] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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29
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Colakoglu M, Toy H, Icen MS, Vural M, Mahmoud AS, Yazici F, Buendgen N, Cordes T, Schultze-Mosgau A, Diedrich K, Beyer D, Griesinger G, Oude Loohuis EJ, Nahuis MJ, Bayram N, Hompes PGA, Oosterhuis GJE, Bossuyt PM, van der Veen F, Mol BWJ, van Wely M, Nahuis MJ, Oude Loohuis EJ, Kose N, Bayram N, Hompes PGA, Oosterhuis GJE, Bossuyt PM, van der Veen F, Mol BWJ, van Wely M, Yaba A, Demir N, Allegra A, Pane A, Marino A, Scaglione P, Ruvolo G, Manno M, Volpes A, Lunger F, Wildt L, Seeber B, Kolibianakis EM, Venetis CA, Bosdou J, Toulis K, Goulis DG, Tarlatzi TB, Tarlatzis BC, Franz M, Keck C, Daube S, Pietrowski D, Demir N, Yaba A, Iannetta R, Santos RDS, Lima TP, Giolo F, Iannetta O, Martins WP, Paula FJ, Ferriani RA, Rosa e Silva ACJS, Martinelli CE, Reis RM, Devesa M, Rodriguez I, Coroleu B, Tur R, Gonzalez C, Barri PN, Nardo LG, Mohiyiddeen L, Mulugeta B, McBurney H, Roberts SA, Newman WG, Grynberg M, Lamazou F, Even M, Gallot V, Frydman R, Fanchin R, Abdalla H, Nicopoullos J, Leader A, Pang S, Witjes H, Gordon K, Devroey P, Arrivi C, Ferraretti AP, Magli MC, Tartaglia ML, Fasolino MC, Gianaroli L, Macek sr. M, Feldmar P, Kluckova H, Hrehorcak M, Diblik J, Cernikova J, Paulasova P, Turnovec M, Macek jr. M, Hillensjo T, Yeko T, Witjes H, Elbers J, Devroey P, Mardesic T, Abuzeid M, Witjes H, Mannaerts B, Okubo T, Matsuo R, Kuwayama M, Teramoto S, Chakraborty P, Goswami SK, Chakravarty BN, Nandi SS, Kabir SN, Ramos Vidal J, Prados N, Caligara C, Garcia J, Carranza FJ, Gonzalez-Ravina A, Salazar A, Tocino A, Rodriguez I, Fernandez-Sanchez M, Ito H, Iwasa T, Hasegawa E, Hatano K, Nakayama D, Kazuka M, Usuda S, Isaka K, Ventura V, Doria S, Fernandes S, Barros A, Valkenburg O, Lao O, Schipper I, Louwers YV, Uitterlinden AG, Kayser M, Laven JSE, Sharma S, Goswami S, Goswami SK, Ghosh S, Chattopadhyay R, Sarkar A, Chakravarty BN, Louwers YV, Valkenburg O, Lie Fong S, van Dorp W, de Jong FH, Laven JSE, Ghosh S, Chattopadhyay R, Goswami SK, Radhika KL, Chakravarty BN, Benkhalifa M, Demirol A, Montjeant D, Delagrange P, Gentien D, Giakoumakis G, Menezo Y, Dattilo M, Gurgan T, Engels S, Blockeel C, Haentjens P, De Vos M, Camus M, Devroey P, Dimitraki M, Koutlaki N, Gioka T, Messini CI, Dafopoulos K, Messinis IE, Gurlek B, Batioglu S, Ozyer S, Nafiye Y, Kale I, Karayalcin R, Uncu G, Kasapoglu I, Uncu Y, Celik N, Ozerkan K, Ata B, Ferrero H, Gomez R, Delgado F, Simon C, Gaytan F, Pellicer A, Osborn JC, Fien L, Wolyncevic J, Esler JH, Choi D, Kim N, Choi J, Jo M, Lee E, Lee D, Fujii R, Neyatani N, Waseda T, Oka Y, Takagi H, Tomizawa H, Sasagawa T, Makinoda S, Ajina M, Zorgati H, Ben Salem A, Ben Ali H, Mehri S, Touhami M, Saad A, Piouka A, Karkanaki A, Katsikis I, Delkos D, Mousatat T, Daskalopoulos G, Panidis D, Pantos K, Stavrou D, Sfakianoudis K, Angeli E, Chronopoulou M, Vaxevanoglou T, Jones R GMJ, Lee WD, Kim SD, Jee BC, Kim KC, Kim KH, Kim SH, Kim YJ, Park KA, Chae SJ, Lim KS, Hur CY, Kang YJ, Lee WD, Lim JH, Tomizawa H, Makinoda S, Fujita S, Waseda T, Fujii R, Utsunomiya R T, Vieira C, Martins WP, Fernandes JBF, Soares GM, Reis RM, Silva de Sa MF, Ferriani R RA, Yoo JH, Kim HO, Cha SH, Koong MK, Song IO, Kang IS, Hatakeyama N, Jinno M, Watanabe A, Hirohama J, Hiura R, Konig TE, Beemsterboer SN, Overbeek A, Hendriks ML, Heymans MW, Hompes P, Homburg R, Schats R, Lambalk CB, van der Houwen L, Konig TE, Overbeek A, Hendriks ML, Beemsterboer SN, Kuchenbecker WK, Renckens CNM, Bernardus RE, Schats R, Homburg R, Hompes P, Lambalk CB, Potdar N, Gelbaya TA, Nardo LG, de Groot PCM, Dekkers OM, Romijn JA, Dieben SWM, Helmerhorst FM, Guivarch Leveque A, Homer L, Broux PL, Moy L, Priou G, Vialard J, Colleu D, Arvis P, Dewailly D, Aghahosseini M, Aleyasin A, Sarvi F, Safdarian L, Rahmanpour H, Akhtar MA, Navaratnam K, Ankers D, Sharma SD, Son WY, Chung JT, Reinblatt S, Dahan M, Demirtas M, Holzer H, Aspichueta F, Exposito A, Crisol L, Prieto B, Mendoza R, Matorras R, Kim K, Lee J, Jee B, Lee W, Suh C, Moon J, Kim S, Sarapik A, Velthut A, Haller-Kikkatalo K, Faure GC, Bene MC, de Carvalho M, Massin F, Uibo R, Salumets A, Alhalabi M, Samawi S, Taha A, Kafri N, Modi S, Khatib A, Sharif J, Othman A, Hamamah S, Assou S, Anahory T, Loup V, Dechaud H, Dewailly D, Mousavi Fatemi H, Doody K, Witjes H, Mannaerts B, Basconi V, Jungblut L, Young E, Van Thillo G, Paz D, Pustovrh MC, Fabbri R, Pasquinelli G, Magnani V, Macciocca M, Parazza I, Battaglia C, Paradisi R, Venturoli S, Ono M, Teranisi A, Fumino T, Ohama N, Hamai H, Chikawa A, Takata R, Teramura S, Iwahasi K, Shigeta M, Heidari M, Farahpour M, Talebi S, Edalatkhah H, Zarnani AH, Ardekani AM, Pietrowski D, Szabo L, Sator M, Just A, Franz M, Egarter C, Hope N, Motteram C, Rombauts LJ, Lee W, Chang E, Han J, Won H, Yoon T, Seok H, Diao FY, Mao YD, Wang W, Ding W, Liu JY, Chang E, Yoon T, Lee W, Cho J, Kwak I, Kim Y, Afshan I, Cartwright R, Trew G, Lavery S, Lockwood G, Niyani K, Banerjee S, Chambers A, Pados G, Tsolakidis D, Billi H, Athanatos D, Tarlatzis B, Salumets A, Laanpere M, Altmae S, Kaart T, Stavreus-Evers A, Nilsson TK, van Dulmen-den Broeder E, van der Stroom E, Konig TE, van Montfrans J, Overbeek A, van den Berg MH, van Leeuwen FE, Lambalk CB, Taketani T, Tamura H, Tamura I, Asada H, Sugino N, Al - Azemi M, Kyrou D, Papanikolaou EG, Polyzos NP, Devroey P, Fatemi HM, Qiu Z, Yang L, Yan G, Sun H, Hu Y, Mohiyiddeen L, Higgs J, Roberts S, Newman W, Nardo LG, Ho C, Guijarro JA, Nunez R, Alonso J, Garcia A, Cordeo C, Cortes S, Caballero P, Soliman S, Baydoun R, Wang B, Shreeve N, Cagampang F, Sadek K, Hill CM, Brook N, Macklon N, Cheong Y, Santana R, Setti AS, Maldonado LG, Valente FM, Iaconelli C, Braga DPAF, Iaconelli Jr. A, Borges Jr. E, Yoon JS, Won MY, Kim SD, Jung JH, Yang SH, Lim JH, Kavrut M, Kahraman S, Sadek KH, Bruce KB, Macklon N, Cagampang FR, Cheong YC, Cota AMM, Oliveira JBA, Petersen CG, Mauri AL, Massaro FC, Silva LFI, Vagnini LD, Nicoletti A, Pontes A, Cavagna M, Baruffi RLR, Franco Jr. JG, Won MY, Kim SD, Yoon JS, Jung JH, Yang SH, Lim JH, Kim SD, Kim JW, Yoon TK, Lee WS, Han JE, Lyu SW, Shim SH, Kuwabara Y, Katayama A, Tomiyama R, Piao H, Ono S, Shibui Y, Abe T, Ichikawa T, Mine K, Akira S, Takeshita T, Hatzi E, Lazaros L, Xita N, Kaponis A, Makrydimas G, Sofikitis N, Stefos T, Zikopoulos K, Georgiou I, Guimera M, Casals G, Fabregues F, Estanyol JM, Balasch J, Mochtar MH, Van den Wijngaard L, Van Voorst S, Koks CAM, Van Mello NM, Mol BWJ, Van der Veen F, Van Wely M, Fabregues F, Iraola A, Casals G, Creus M, Carmona F, Balasch J, Villarroel C, Lopez P, Merino P, Iniguez G, Codner E, Xu B, Cui Y, Gao L, Xue KAI, Li MEI, Zhang YUAN, Diao F, Ma X, Liu J, Leonhardt H, Gull B, Kishimoto K, Kataoka M, Stener-Victorin E, Hellstrom M, Cui Y, Wang X, Zhang Z, Ding G, HU X, Sha J, Zhou Z, Liu J, Liu J, Kyrou D, Kolibianakis EM, Fatemi HM, Camus M, Tournaye H, Tarlatzis BC, Devroey P, Davari F, Rashidi B, Rahmanpour Zanjani H, Al-Inany H, Youssef M, Aboulghar M, Broekmans F, Sterrenburg M, Smit J, Abousetta A, Van Dessel H, Van Leeuwen J, McGee EA, Bodri D, Guillen JJ, Rodriguez A, Trullenque M, Coll O, Vernaeve V, Snajderova M, Keslova P, Sedlacek P, Formankova R, Kotaska K, Stary J, Weghofer A, Dietrich W, Barad DH, Gleicher N, Rustamov O, Pemberton P, Roberts S, Smith A, Yates A, Patchava S, Nardo L, Toulis KA, Mintziori G, Goulis DG, Kintiraki E, Eukarpidis E, Mouratoglou SA, Pavlaki A, Stergianos S, Poulasouhidou M, Tzellos TG, Tarlatzis BC, Nasiri R, Ramezanzadeh F, Sarafraz Yazdi M, Baghrei M, Lee RKK, Wu FS, Lin S, Lin MH, Hwu YM. POSTER VIEWING SESSION - REPRODUCTIVE ENDOCRINOLOGY. Hum Reprod 2011. [DOI: 10.1093/humrep/26.s1.90] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Ogawa Y, Buchert SC, Häggström I, Rietveld MT, Fujii R, Nozawa S, Miyaoka H. On the statistical relation between ion upflow and naturally enhanced ion-acoustic lines observed with the EISCAT Svalbard radar. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2010ja015827] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Y. Ogawa
- National Institute of Polar Research; Tokyo Japan
| | | | | | | | - R. Fujii
- Solar-Terrestrial Environment Laboratory; Nagoya University; Nagoya Japan
| | - S. Nozawa
- Solar-Terrestrial Environment Laboratory; Nagoya University; Nagoya Japan
| | - H. Miyaoka
- National Institute of Polar Research; Tokyo Japan
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Fujii R, Fujimoto M, Kuga M, Kudo Y, Suzuki H, Haki K, Nishimon S, Nakane J. The current status of forensic psychiatry in japan. Eur Psychiatry 2011. [DOI: 10.1016/s0924-9338(11)72484-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
In 2005, the Medical Treatment and Supervision (MTS) Act was enacted in Japan to hospitalize the criminally insane and to promote a self-supporting lifestyle after deinstitutionalization. As of October 2010, 490 patients remain hospitalized in 23 highly secure forensic hospitals. Most patients are diagnosed with chronic schizophrenia and exhibit symptoms of drug resistance. Battering is the most common criminal act they have committed.The increased prevalence of the combination of criminal insanity with drug dependence is a common problem in other countries as well. It is a serious problem that diversity in prison medical care has not been achieved.A characteristic feature of care for criminally insane patients in Japan is that they must live in a residential district where a public health center is located and close to forensic hospitals after deinstitutionalization. Although there may be concerns about social prejudice against psychiatric disorders, this limited area would help support rehabilitation of patients because medical staff can easily know the whereabouts, psychiatric condition and aspects, of daily life for each patient through frequent reports obtained from home-visiting nurses. As a result, patients who have been successfully deinstitutionalized lead a self-supporting lifestyle without treatment interruption or repetition of similar criminal acts.In this presentation, we will show the current status of forensic care in Japan, analyze its characteristics and problems described above, and make suggestions for the treatment of the criminally insane in countries with a small national land area such as Japan.
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Sasajima J, Mizukami Y, Sugiyama Y, Nakamura K, Kawamoto T, Koizumi K, Fujii R, Motomura W, Sato K, Suzuki Y, Tanno S, Fujiya M, Sasaki K, Shimizu N, Karasaki H, Kono T, Kawabe JI, Ii M, Yoshiara H, Kamiyama N, Ashida T, Bardeesy N, Chung DC, Kohgo Y. Transplanting normal vascular proangiogenic cells to tumor-bearing mice triggers vascular remodeling and reduces hypoxia in tumors. Cancer Res 2010; 70:6283-92. [PMID: 20631070 DOI: 10.1158/0008-5472.can-10-0412] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Blood vessels deliver oxygen and nutrients to tissues, and vascular networks are spatially organized to meet the metabolic needs for maintaining homeostasis. In contrast, the vasculature of tumors is immature and leaky, resulting in insufficient delivery of nutrients and oxygen. Vasculogenic processes occur normally in adult tissues to repair "injured" blood vessels, leading us to hypothesize that bone marrow mononuclear cells (BMMNC) may be able to restore appropriate vessel function in the tumor vasculature. Culturing BMMNCs in endothelial growth medium resulted in the early outgrowth of spindle-shaped attached cells expressing CD11b/Flt1/Tie2/c-Kit/CXCR4 with proangiogenic activity. Intravenous administration of these cultured vascular proangiogenic cells (VPC) into nude mice bearing pancreatic cancer xenografts and Pdx1-Cre;LSL-Kras(G12D);p53(lox/+) genetically engineered mice that develop pancreatic ductal adenocarcinoma significantly reduced areas of hypoxia without enhancing tumor growth. The resulting vasculature structurally mimicked normal vessels with intensive pericyte coverage. Increases in vascularized areas within VPC-injected xenografts were visualized with an ultrasound diagnostic system during injection of a microbubble-based contrast agent (Sonazoid), indicating a functional "normalization" of the tumor vasculature. In addition, gene expression profiles in the VPC-transplanted xenografts revealed a marked reduction in major factors involved in drug resistance and "stemness" of cancer cells. Together, our findings identify a novel alternate approach to regulate abnormal tumor vessels, offering the potential to improve the delivery and efficacy of anticancer drugs to hypoxic tumors.
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Affiliation(s)
- Junpei Sasajima
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical College, Asahikawa, Hokkaido, Japan
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Fujii R, Fujita S, Waseda T, Oka Y, Takagi H, Tomizawa H, Sasagawa T, Makinoda S, Cavagna M, Braga DPAF, Figueira RCS, Aoki T, Maldonado LGL, Iaconelli A, Borges E, Prabhakar S, Dittrich R, Beckmann MW, Hoffmann I, Mueller A, Kjotrod S, Carlsen SM, Rasmussen PE, Holst-Larsen T, Mellembakken J, Thurin-Kjellberg A, Haapaniemi Kouru K, Morin Papunen L, Humaidan P, Sunde A, von During V, Pappalardo S, Valeri C, Crescenzi F, Manna C, Sallam HN, Polec A, Raki M, Tanbo T, Abyholm T, Fedorcsak P, Tabanelli C, Ferraretti AP, Feliciani E, Magli MC, Fasolino C, Gianaroli L, Wang T, Feng C, Song Y, Dong MY, Sheng JZ, Huang HF, Sayyah Melli M, Kazemi-shishvan M, Snajderova M, Zemkova D, Pechova M, Teslik L, Lanska V, Ketel I, Serne E, Stehouwer C, Korsen T, Hompes P, Smulders Y, Voorstemans L, Homburg R, Lambalk C, Bellver J, Martinez-Conejero JA, Pellicer A, Labarta E, Alama P, Melo MAB, Horcajadas JA, Agirregoitia N, Peralta L, Mendoza R, Exposito A, Matorras R, Agirregoitia E, Ajina M, Chaouache N, Gaddas M, Souissi A, Tabka Z, Saad A, Zaouali-Ajina M, Zbidi A, Eguchi N, Jinno M, Watanabe A, Hirohama J, Hatakeyama N, Choi YM, Kim JJ, Kim DH, Yoon SH, Ku SY, Kim SH, Kim JG, Lee KS, Moon SY, Hirohama J, Jinno M, Watanabe A, Eguchi N, Hatakeyama N, Jinno M, Watanabe A, Hirohama J, Eguchi N, Hatakeyama N, Xiong Y, Liang X, Li Y, Yang X, Wei L, Makinoda S, Tomizawa H, Fujita S, Takagi H, Oka Y, Waseda T, Sasagawa T, Fujii R, Utsunomiya T, Chu S, Li P, Akarsu S, Dirican EK, Akin KO, Kormaz C, Goktolga U, Ceyhan ST, Kara C, Nadamoto K, Tarui S, Ida M, Sugihara K, Haruki A, Hukuda A, Morimoto Y, Albu A, Albu D, Sandu L, Kong G, Cheung L, Lok I, Pinto A, Teixeira L, Figueiredo H, Pires I, Silva Carvalho JL, Pereira ML, Faut M, de Zuniga I, Colaci D, Barrios E, Oubina A, Terrado Gil G, Motta A, Colaci D, de Zuniga I, Horton M, Faut M, Sobral F, Gomez Pena M, Motta A, Gleicher N, Barad DH, Li YP, Zhao HC, Spaczynski RZ, Guzik P, Banaszewska B, Krauze T, Wykretowicz A, Wysocki H, Pawelczyk L, Sarikaya E, Gulerman C, Cicek N, Mollamahmutoglu L, Venetis CA, Kolibianakis EM, Toulis K, Goulis D, Loutradi K, Chatzimeletiou K, Papadimas I, Bontis I, Tarlatzis BC, Schultze-Mosgau A, Griesinger G, Schoepper B, Cordes T, Diedrich K, Al-Hasani S, Gomez R, Jovanovic V, Sauer CM, Shawber CJ, Sauer MV, Kitajewski J, Zimmermann RC, Bungum L, Jacobsson AK, Rosen F, Becker C, Andersen CY, Guner N, Giwercman A, Kiapekou E, Zapanti E, Boukelatou D, Mavreli T, Bletsa R, Stefanidis K, Drakakis P, Mastorakos G, Loutradis D, Malhotra N, Sharma V, Kumar S, Roy KK, Sharma JB, Ferraretti A, Gianaroli L, Magli MC, Crippa A, Stanghellini I, Robles F, Serdynska-Szuster M, Spaczynski RZ, Banaszewska B, Pawelczyk L, Kristensen SL, Ernst E, Toft G, Olsen SF, Bonde JP, Vested A, Ramlau-Hansen CH, Wang FF, Qu F, Ding GL, Huang HF, Gallot V, Genro V, Roux I, Scheffer JB, Frydman R, Fanchin R, Kanta Goswami S, Banerjee S, Chakravarty BN, Kabir SN, Seeber BE, Morandell E, Kurzthaler D, Wildt L, Dieplinger H, Tutuncu L, Bodur S, Dundar O, Ron - El R, Seger R, Komarovsky D, Kasterstein E, Komsky A, Maslansky B, Strassburger D, Ben-Ami I, Zhao XM, Ni RM, Lin L, Dong M, Tu CH, He ZH, Yang DZ, Karamalegos C, Polidoropoulos N, Papanikopoulos C, Stefanis P, Argyrou M, Doriza S, Sisi V, Moschopoulou M, Karagianni T, Mentorou C, Economou K, Davies S, Mastrominas M, Gougeon A, De Los Santos MJ, Garcia-Laez V, Martinez-Conejero JA, Horcajadas JA, Esteban F, Labarta E, Crespo J, Pellicer A, Li HWR, Anderson RA, Yeung WSB, Ho PC, Ng EHY, Yang HI, Lee KE, Seo SK, Kim HY, Cho SH, Choi YS, Lee BS, Park KH, Cho DJ, Hart R, Doherty D, Mori T, Hickey M, Sloboda D, Norman R, Huang RC, Beilin L, Freiesleben N, Lossl K, Johannsen TH, Loft A, Bangsboll S, Hougaard D, Friis-Hansen L, Christiansen M, Nyboe Andersen A, Thum MY, Abdalla H, Martinez-Salazar J, De la Fuente G, Kohls G, Pellicer A, Garcia Velasco JA, Yasmin E, Kukreja S, Barth J, Balen AH, Esra T, Var T, Citil A, Dogan M, Cicek N, Messini CI, Dafopoulos K, Chalvatzas N, Georgoulias P, Anifandis G, Messinis IE, Celik O, Hascalik S, Celik N, Sahin I, Aydin S, Hanna CW, Bretherick KL, Liu CC, Stephenson MD, Robinson WP, Louwers YV, Goodarzi MO, Taylor KD, Jones MR, Cui J, Kwon S, Chen YDI, Guo X, Stolk L, Uitterlinden AG, Laven JSE, Azziz R, Navaratnarajah R, Grun B, Sinclair J, Dafou D, Gayther S, Timms JF, Hardiman PJ, Ye Y, Wu R, Ou J, Kim SD, Jee BC, Lee JY, Suh CS, Kim SH, Jung JH, Moon SY, Opmeer BC, Broeze KA, Coppus SF, Collins JA, Den Hartog JE, Land JA, Van der Linden PJ, Marianowski P, Ng E, Van der Steeg JW, Steures P, Strandell A, Mol BW, Tarlatzi TB, Kyrou D, Mertzanidou A, Fatemi HM, Tarlatzis BC, Devroey P, Batenburg TE, Konig TE, Overbeek A, Hompes P, Schats R, Lambalk CB, Carone D, Vizziello G, Vitti A, Chiappetta R, Topcu HO, Yuksel B, Islimye M, Karakaya J, ozat M, Batioglu S, Kuchenbecker WK, Groen H, Bolster JH, van Asselt S, Wolffenbuettel BH, Land JA, Hoek A, Wu Y, Pan H, Chen X, Wang T, Huang H, Zavos A, Dafopoulos K, Georgoulias P, Messini CI, Verikouki C, Messinis IE, Van Os L, Vink-Ranti CQJ, Rijnders PM, Tucker KE, Jansen CAM, Lucco F, Pozzobon C, Lara E, Galliano D, Pellicer A, Ballesteros A, Ghoshdastidar B, Maity SP, Ghoshdastidar B, Ghoshdastidar S, Luna M, Vela G, Sandler B, Barritt J, Flisser ED, Copperman AB, Nogueira D, Prat L, Degoy J, Bonald F, Montagut J, Ghoshdastidar S, Maity S, Ghoshdastidar B, Chen S, Chen X, Luo C, Zhen H, Shi X, Wu F, Ni Y, Merdassi G, Chaker A, Kacem K, Benmeftah M, Fourati S, Wahabi D, Zhioua F, Zhioua A, Saini P, Saini A, Sugiyama R, Nakagawa K, Nishi Y, Jyuen H, Kuribayashi Y, Sugiyama R, Inoue M, Jancar N, Vrtacnik Bokal E, Virant-Klun I, Lee JH, Kim SG, Cha EM, Park IH, Lee KH, Dahdouh EM, Desrosiers P, St-Michel P, Villeneuve M, Fontaine JY, Granger L, Ramon O, Matorras R, Burgos J, Abanto E, Gonzalez M, Mugica J, Corcostegui B, Exposito A, Tal J, Ziskind G, Ohel G, Paltieli Y, Paz G, Lewit N, Sendel H, Khouri S, Calderon I, van Gelder P, Al-Inany HG, Antaki R, Dean N, Lapensee L, Racicot M, Menard S, Kadoch I, Meylaerts LJ, Dreesen L, Vandersteen M, Neumann C, Zollner U, Kato K, Segawa T, Kawachiya S, Okuno T, Kobayashi T, Takehara Y, Kato O, Jayaprakasan K, Nardo L, Hopkisson J, Campbell B, Raine-Fenning N. Posters * Reproductive Endocrinology (i.e. PCOS, Menarche, Menopause etc.). Hum Reprod 2010. [DOI: 10.1093/humrep/de.25.s1.438] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Nakamura K, Sasajima J, Mizukami Y, Sugiyama Y, Yamazaki M, Fujii R, Kawamoto T, Koizumi K, Sato K, Fujiya M, Sasaki K, Tanno S, Okumura T, Shimizu N, Kawabe JI, Karasaki H, Kono T, Ii M, Bardeesy N, Chung DC, Kohgo Y. Hedgehog promotes neovascularization in pancreatic cancers by regulating Ang-1 and IGF-1 expression in bone-marrow derived pro-angiogenic cells. PLoS One 2010; 5:e8824. [PMID: 20098680 PMCID: PMC2809097 DOI: 10.1371/journal.pone.0008824] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [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: 10/11/2009] [Accepted: 01/01/2010] [Indexed: 01/11/2023] Open
Abstract
Background The hedgehog (Hh) pathway has been implicated in the pathogenesis of cancer including pancreatic ductal adenocarcinoma (PDAC). Recent studies have suggested that the oncogenic function of Hh in PDAC involves signaling in the stromal cells rather than cell autonomous effects on the tumor cells. However, the origin and nature of the stromal cell type(s) that are responsive to Hh signaling remained unknown. Since Hh signaling plays a crucial role during embryonic and postnatal vasculogenesis, we speculated that Hh ligand may act on tumor vasculature specifically focusing on bone marrow (BM)-derived cells. Methodology/Principal Findings Cyclopamine was utilized to inhibit the Hh pathway in human PDAC cell lines and their xenografts. BM transplants, co-culture systems of tumor cells and BM-derived pro-angiogenic cells (BMPCs) were employed to assess the role of tumor-derived Hh in regulating the BM compartment and the contribution of BM-derived cells to angiogenesis in PDAC. Cyclopamine administration attenuated Hh signaling in the stroma rather than in the cancer cells as reflected by decreased expression of full length Gli2 protein and Gli1 mRNA specifically in the compartment. Cyclopamine inhibited the growth of PDAC xenografts in association with regression of the tumor vasculature and reduced homing of BM-derived cells to the tumor. Host-derived Ang-1 and IGF-1 mRNA levels were downregulated by cyclopamine in the tumor xenografts. In vitro co-culture and matrigel plug assays demonstrated that PDAC cell-derived Shh induced Ang-1 and IGF-1 production in BMPCs, resulting in their enhanced migration and capillary morphogenesis activity. Conclusions/Significance We identified the BMPCs as alternative stromal targets of Hh-ligand in PDAC suggesting that the tumor vasculature is an attractive therapeutic target of Hh blockade. Our data is consistent with the emerging concept that BM-derived cells make important contributions to epithelial tumorigenesis.
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Affiliation(s)
- Kazumasa Nakamura
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical College, Asahikawa, Japan
| | - Junpei Sasajima
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical College, Asahikawa, Japan
| | - Yusuke Mizukami
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical College, Asahikawa, Japan
- * E-mail:
| | - Yoshiaki Sugiyama
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical College, Asahikawa, Japan
| | - Madoka Yamazaki
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical College, Asahikawa, Japan
| | - Rie Fujii
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical College, Asahikawa, Japan
| | - Toru Kawamoto
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical College, Asahikawa, Japan
| | - Kazuya Koizumi
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical College, Asahikawa, Japan
| | - Kazuya Sato
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical College, Asahikawa, Japan
| | - Mikihiro Fujiya
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical College, Asahikawa, Japan
| | - Katsunori Sasaki
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical College, Asahikawa, Japan
| | - Satoshi Tanno
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical College, Asahikawa, Japan
- Department of General Medicine, Asahikawa Medical College, Asahikawa, Japan
| | - Toshikatsu Okumura
- Department of General Medicine, Asahikawa Medical College, Asahikawa, Japan
| | - Norihiko Shimizu
- Department of Animal Facility, Asahikawa Medical College, Asahikawa, Japan
| | - Jun-ichi Kawabe
- Department of Cardiovascular Regeneration and Innovation, Asahikawa Medical College, Asahikawa, Japan
| | - Hidenori Karasaki
- Division of Gastroenterological and General Surgery, Department of Surgery, Asahikawa Medical College, Asahikawa, Japan
| | - Toru Kono
- Division of Gastroenterological and General Surgery, Department of Surgery, Asahikawa Medical College, Asahikawa, Japan
| | - Masaaki Ii
- Group of Vascular Regeneration Research, Institute of Biomedical Research and Innovation, Kobe, Japan
| | - Nabeel Bardeesy
- Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts, United States of America
| | - Daniel C. Chung
- Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts, United States of America
- Gastrointestinal Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, United States of America
| | - Yutaka Kohgo
- Division of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical College, Asahikawa, Japan
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Fujii R, Saito Y, Tokura Y, Nakagawa KI, Okuda K, Ishihara K. Characterization of bacterial flora in persistent apical periodontitis lesions. ACTA ACUST UNITED AC 2010; 24:502-5. [PMID: 19832803 DOI: 10.1111/j.1399-302x.2009.00534.x] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
INTRODUCTION Microorganisms are able to survive and induce persistent infection in periapical tissues. The aim of this study was to investigate the composition of the microflora of persistent apical periodontitis lesions. METHODS Twenty apical lesion samples were obtained from 20 patients with chronic apical periodontitis by root end surgery and processed using aerobic or anaerobic culture techniques. All isolated strains were identified by 16S ribosomal DNA sequence analysis. RESULTS Seventy-four strains were isolated, belonging to 31 bacterial species obtained from the 20 apical lesions that were isolated. The majority of the strains were facultative anaerobes (51.6%). Propionibacterium acnes, Staphylococcus epidermidis, Pseudomonas aeruginosa and Fusobacterium nucleatum were isolated from 16.2, 9.5, 6.8 and 5.4% of the samples, respectively. Fifteen samples harboured more than one species. The predominant association was P. acnes, S. epidermidis and F. nucleatum. CONCLUSION The microbiota of persistent apical periodontitis lesions is composed by diverse types of microorganisms with biofilm-forming capacity, including P. acnes, S. epidermidis and F. nucleatum.
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Affiliation(s)
- R Fujii
- Department of Endodontics, Pulp and Periapical Biology, Tokyo Dental College, Chiba, Japan
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Tomizawa H, Neyatani N, Takagi H, Fujii R, Makinoda S. O941 Usefulness of G-CSF in the treatment of luteinized unruptured follicle (LUF). Int J Gynaecol Obstet 2009. [DOI: 10.1016/s0020-7292(09)61314-x] [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]
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Fujita S, Oka Y, Waseda T, Mosfeque R, Fujii R, Makinoda S. P1010 A case of primary uterine atypical polypoid adenomyoma (APA) recurring after pregnancy and delivery. Int J Gynaecol Obstet 2009. [DOI: 10.1016/s0020-7292(09)62496-6] [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: 10/20/2022]
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Makinoda S, Hirosaki N, Waseda T, Tomizawa H, Fujii R. Granulocyte colony-stimulating factor (G-CSF) in the mechanism of human ovulation and its clinical usefulness. Curr Med Chem 2008; 15:604-13. [PMID: 18336275 DOI: 10.2174/092986708783769740] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In 1980, Espey proposed a famous hypothesis that mammalian ovulation is comparable to an inflammatory reaction and many researches have proved the validity of his hypothesis in the last three decades. For example, interleukin (IL)-1beta, IL-6, tumor necrosis factor (TNF)- alpha, granulocyte-macrophage colony-stimulating factor (GM-CSF), macrophage colony-stimulating factor (M-CSF) and other inflammatory cytokines presence was proven in the preovulatory follicle. Since granulocyte is the major leukocyte and it plays a very important role during inflammation, the importance of granulocyte and its related cytokine, granulocyte colony-stimulating factor (G-CSF) in the mechanism of human ovulation is easily predictable. G-CSF is one of the hemopoietic cytokines and it has strong positive effects on granulocytes. G-CSF increases the number of granulocytes and it improves the function of granulocytes. In this review, the participation of leukocytes in the ovulation mechanism is demonstrated first. Second, the participation of G-CSF is shown in comparison with the above mentioned cytokines. Finally, since G-CSF has been used for more than 20 years as a medicine without severe side effects in the field of oncology, the clinical application of G-CSF for the treatment of an ovulation disorder, luteinized unruptured follicle (LUF), will be discussed.
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Affiliation(s)
- S Makinoda
- Department of Obstetrics and Gynecology, Kanazawa Medical University, Uchinada, 920-0293 Japan.
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Yamauchi O, Yajima T, Fujii R, Shimazaki Y, Yabusaki M, Takani M, Tashiro M, Motoyama T, Kakuto M, Nakabayashi Y. CH⋯Metal(II) axial interaction in planar complexes (metal=Cu, Pd) and implications for possible environmental effects of alkyl groups at biological copper sites. J Inorg Biochem 2008; 102:1218-26. [DOI: 10.1016/j.jinorgbio.2007.11.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2007] [Revised: 10/15/2007] [Accepted: 11/30/2007] [Indexed: 11/29/2022]
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Saito Y, Fujii R, Nakagawa KI, Kuramitsu HK, Okuda K, Ishihara K. Stimulation of Fusobacterium nucleatum biofilm formation by Porphyromonas gingivalis. ACTA ACUST UNITED AC 2008; 23:1-6. [PMID: 18173791 DOI: 10.1111/j.1399-302x.2007.00380.x] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND/AIMS Bacterial infection is a major cause of periapical periodontitis. Eradication of these microorganisms from apical lesions is essential to the success of endodontic treatment. The aim of this study was to clarify the molecular interaction between Fusobacterium nucleatum, Porphyromonas gingivalis and other microorganisms associated with periapical periodontitis. METHODS Microorganisms isolated from periapical lesions were inoculated into type-I collagen-coated polystyrene microtiter plates and maintained at 37 degrees C under anaerobic conditions for 2 days, after which, the quantity of organized biofilm on the plates was evaluated by crystal violet staining. Growth enhancement via soluble factor was evaluated by separated coculture using a 0.4-mum membrane filter. RESULTS F. nucleatum exhibited strong adherence to type-I collagen-coated polystyrene microplates. Biofilm formation by F. nucleatum was significantly enhanced by P. gingivalis. It was complemented by compartmentalized coculture with P. gingivalis. Enhancement of biofilm formation by P. gingivalis was only slightly reduced by inactivation of its autoinducer-2-producing gene luxS. CONCLUSION The results suggest that P. gingivalis enhances biofilm formation by F. nucleatum by releasing diffusible signaling molecules other than autoinducer-2.
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Affiliation(s)
- Y Saito
- Department of Endodontics, Pulp and Periapical Biology, Tokyo Dental College, Chiba, Japan
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Mampuku M, Yamanaka T, Sakai H, Fujii R, Maki T, Uchida M, Sakai H, Yahagi W, Tsutsumi H. Organic geochemical study of continuous lacustrine sediments obtained from Kathmandu Valley, central Himalaya: interpretation of paleoenvironmental changes in the late Quaternary. ACTA ACUST UNITED AC 2008. [DOI: 10.3126/hjs.v2i4.878] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Fujii R, Kanai T, Nemoto Y, Makita S, Oshima S, Okamoto R, Tsuchiya K, Totsuka T, Watanabe M. FTY720 suppresses CD4+CD44highCD62L- effector memory T cell-mediated colitis. Am J Physiol Gastrointest Liver Physiol 2006; 291:G267-74. [PMID: 16574986 DOI: 10.1152/ajpgi.00496.2005] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.0] [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] [Indexed: 01/31/2023]
Abstract
FTY720, a sphingosine-derived immunomodulator, causes immunosuppression via enhancement of lymphocyte sequestration into secondary lymphoid organs, thereby preventing their antigen-activated T cell egress to sites of inflammation. FTY720 is highly effective in inhibiting autoimmunity in various animal models. However, there is little known about how FTY720 controls the migration property of memory T cells. Here, we demonstrated that FTY720 prevents the development of colitis induced by the adoptive transfer of lamina propria (LP) colitogenic effector memory CD4+ T cells (TEM cells; CD45RB(low)CD44(high)CD62L-) into severe combined immunodeficiency (SCID) mice and suppresses interferon-gamma, interleukin-2, and tumor necrosis factor-alpha production by LP CD4+ T cells. The numbers of spleen, peripheral blood, mesenteric lymph node, and LP CD4+ T cells in FTY720-treated mice were significantly reduced compared with those in control mice. Notably, LP CD4+ TEM cells as well as splenic CD4+CD45RBhigh T cells expressed several spingosine-1-phosphate receptors that are targets for FTY720. Furthermore, FTY720 also prevented the development of colitis induced by the adoptive transfer of splenic CD4+CD45RBhigh T cells into SCID mice. Collectively, the present data indicate that FTY720 treatment may offer the potential not only to prevent the onset of disease but also to treat memory T cell-mediated autoimmune diseases including inflammatory bowel diseases.
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Affiliation(s)
- R Fujii
- Department of Gastroenterology and Hepatology, Graduate School, Tokyo Medical and Dental University, Tokyo 113-8519, Japan
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Kanai T, Tanimoto K, Nemoto Y, Fujii R, Makita S, Totsuka T, Watanabe M. Naturally arising CD4+CD25+ regulatory T cells suppress the expansion of colitogenic CD4+CD44highCD62L- effector memory T cells. Am J Physiol Gastrointest Liver Physiol 2006; 290:G1051-8. [PMID: 16373426 DOI: 10.1152/ajpgi.00429.2005] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [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] [Indexed: 01/31/2023]
Abstract
Naturally arising CD4+CD25+ regulatory T (T(R)) cells have been shown to prevent and cure murine T cell-mediated colitis. However, their exact mechanism of controlling colitogenic memory CD4+ T cells in in vivo systems excluding the initial process of naive T cell activation and differentiation has not been examined to date. Using the colitogenic effector memory (T(EM)) CD4+ cell-mediated colitis model induced by adoptive transfer of colitogenic CD4+CD44(high)CD62L(-) lamina propria (LP) T cells obtained from colitic CD4+CD45RB(high) T cell-transferred mice, we have shown in the present study that CD4+CD25+ T(R) cells are able not only to suppress the development of colitis, Th1 cytokine production, and the expansion of colitogenic LP CD4+ T(EM) cells but also to expand these cells by themselves extensively in vivo. An in vitro coculture assay revealed that CD4+CD25+ T(R) cells proliferated in the presence of IL-2-producing colitogenic LP CD4+ T(EM) cells at the early time point (48 h after culture), followed by the acquisition of suppressive activity at the late time point (96 h after culture). Collectively, these data suggest the distinct timing of the IL-2-dependent expansion of CD4+CD25+ T(R) cells and the their suppressive activity on colitogenic LP CD4+ T(EM) cells.
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Affiliation(s)
- T Kanai
- Department of Gastroenterology and Hepatology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan.
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Hosono N, Sakaura H, Mukai Y, Fujii R, Yoshikawa H. C3-6 laminoplasty takes over C3-7 laminoplasty with significantly lower incidence of axial neck pain. Eur Spine J 2006; 15:1375-9. [PMID: 16547754 PMCID: PMC2438573 DOI: 10.1007/s00586-006-0089-9] [Citation(s) in RCA: 99] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2005] [Revised: 11/22/2005] [Accepted: 02/10/2006] [Indexed: 11/30/2022]
Abstract
Five-lamina (C3-7) procedure is the most popular cervical laminoplasty and there have been no studies on the most appropriate number of laminae to be opened. We prospectively reduced the range of laminoplasty from C3-7 to C3-6 in 2002 and compared the outcome of C3-6 laminoplasty (n=37) to that of C3-7 laminoplasty (n=28). In both groups, neurological gain was satisfactory, radiographic changes were minimal, and postoperative MRI indicated sufficient expansion of the dura and the spinal cord. Average operating period was significantly shorter, and length of the operative wound was significantly less in the C3-6 group than in the C3-7 group. Postoperative axial neck pain was significantly rarer after C3-6 laminoplasty than after C3-7 laminoplasty (5.4% vs. 29%, P=0.015). Due to its simplicity and various benefits, C3-6 laminoplasty is a promising alternative to conventional C3-7 laminoplasty for treatment of multisegmental compression myelopathy.
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Affiliation(s)
- N Hosono
- Department of Spine Surgery, Osaka Kosei-Nenkin Hospital, Osaka, Japan.
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Fleck JA, Bossio DA, Fujii R. Dissolved organic carbon and disinfection by-product precursor release from managed peat soils. J Environ Qual 2004; 33:465-475. [PMID: 15074797 DOI: 10.2134/jeq2004.4650] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A wetland restoration demonstration project examined the effects of a permanently flooded wetland on subsidence of peat soils. The project, started in 1997, was done on Twitchell Island, in the Sacramento-San Joaquin Delta of California. Conversion of agricultural land to a wetland has changed many of the biogeochemical processes controlling dissolved organic carbon (DOC) release from the peat soils, relative to the previous land use. Dissolved organic C in delta waters is a concern because it reacts with chlorine, added as a disinfectant in municipal drinking waters, to form carcinogenic disinfection byproducts (DBPs), including trihalomethanes (THMs) and haloacetic acids (HAAs). This study explores the effects of peat soil biogeochemistry on DOC and DBP release under agricultural and wetland management. Results indicate that organic matter source, extent of soil organic matter decomposition, and decomposition pathways all are factors in THM formation. The results show that historical management practices dominate the release of DOC and THM precursors. However, within-site differences indicate that recent management decisions can contribute to changes in DOC quality and THM precursor formation. Not all aromatic forms of carbon are highly reactive and certain environmental conditions produce the specific carbon structures that form THMs. Both HAA and THM precursors are elevated in the DOC released under wetland conditions. The findings of this study emphasize the need to further investigate the roles of organic matter sources, microbial decomposition pathways, and decomposition status of soil organic matter in the release of DOC and DBP precursors from delta soils under varying land-use practices.
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Affiliation(s)
- J A Fleck
- California State University Foundation, Sacramento, CA 95819, USA.
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Waseda T, Makinoda S, Watanabe Y, Sasakura C, Imafuku N, Hirosaki N, Inoue H, Ohshima K, Fujii R, Iura T. Hemodynamic response of ovarian artery after hCG injection. Mol Cell Endocrinol 2003; 202:71-5. [PMID: 12770733 DOI: 10.1016/s0303-7207(03)00065-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [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] [Indexed: 11/18/2022]
Abstract
We have analyzed ovarian hemodynamics immediately after human chorionic gonadotropin (hCG) administration in patients treated by clomiphene-hCG and human menopausal gonadotropin-hCG. This study involved 40 infertile women who signed consents to participate in this study. After intramuscular injection of 10000 IU hCG, the change of ovarian arterial blood flow (BF) was evaluated by color Doppler. Pulsatility index, resistance index, maximum velocity (V(max)), mean velocity, minimum velocity, cross-sectional area of ovarian artery (Area) and BF were measured before and 15-180 min after hCG administration. In the 36 subjects in which ovulation was induced successfully, V(max) and BF increased significantly even at 15 min after hCG administration and thereafter. In the 4 non-ovulatory subjects, no significant changes in any of indices at any of measured time points were observed. Comparative study of non-ovulatory and ovulatory subjects suggested that ovulation may be predicted by the ovarian hemodynamic analysis immediately after hCG administration.
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Affiliation(s)
- T Waseda
- Department of OB/GYN, Kanazawa Medical University, Uchinada 920-0293, Japan.
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Yanagi K, Makinoda S, Fujii R, Miyazaki S, Fujita S, Tomizawa H, Yoshida K, Iura T, Takegami T, Nojima T. Cyclic changes of granulocyte colony-stimulating factor (G-CSF) mRNA in the human follicle during the normal menstrual cycle and immunolocalization of G-CSF protein. Hum Reprod 2002; 17:3046-52. [PMID: 12456601 DOI: 10.1093/humrep/17.12.3046] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [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: 11/12/2022] Open
Abstract
BACKGROUND Ovulation has several similarities with inflammation and is closely connected to the activity of leukocytes and inflammatory cytokines. Since granulocytes are one of the major leukocytes, we focused our attention on the presence and local production of granulocyte colony-stimulating factor (G-CSF) in the human ovary. METHODS The presence of G-CSF protein in the follicular fluid and perifollicular tissues was examined by Western blot analysis (n = 5) and immunohistochemical staining (n = 10). The relative expression levels of G-CSF mRNA in relation to GAPDH in granulosa, theca and luteal cells during the menstrual cycle were measured by quantitative RT-PCR using TaqMan technology (n = 15). RESULTS G-CSF protein was detected in all follicular fluid and located mainly in granulosa cells of the follicle and luteal cells. The expression level of G-CSF mRNA in the late follicular phase was 137.6 +/- 18.5, which was approximately 10-fold greater than other phases during the menstrual cycle (P < 0.05). CONCLUSIONS These results demonstrate that G-CSF is produced in the human follicle shortly before the ovulatory phase and may play an important role in the mechanism of ovulation.
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Affiliation(s)
- K Yanagi
- Department of Obstetrics and Gynecology, Kanazawa Medical University, Uchinada, 920-0293, Japan
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Abstract
The possible involvement of nitric oxide (NO) in regulating the motile activities of teleostean melanophores was studied in the dark chub Zacco temmincki (Cyprinidae, Cypriniformes) and in the translucent glass catfish Kryptopterus bicirrhis (Siluridae, Siluriformes). NO donors, including (+/-)-(E)-methyl-2-[(E)-hydroxyimino]-5-nitro-6-methoxy-3-hexaneamide (NOR1), molsidomine (MSD), sodium nitroprusside (SNP) and glyceryl trinitrate (GTN), had no pigment-aggregating action on melanophores, but actively dispersed melanosomes in those cells. Among those reagents, NOR 1, a spontaneous releaser of NO, was the most effective. Inhibitors for nitric oxide synthase (NOS), i.e. N omega-nitro-L-arginine methyl ester (L-NNA), N omega-nitro-L-arginine (L-NAME) and N omega-monomethyl-L-arginine (L-NMMA), showed melanosome-aggregating effects. A membrane-permeable analogue of cyclic guanosine-3',5'-monophosphate (8-Br-cGMP) was effective in dispersing melanosomes. The sum of these results suggests that NO plays an active role in the elaborate control of color changes in teleosts by dispersing pigment in melanophores via activation of soluble guanylyl cyclase to increase cytosolic levels of cGMP.
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Affiliation(s)
- H Hayashi
- Department of Biomolecular Science, Faculty of Science, Toho University, Miyama, Funabashi, Chiba 274-8510, Japan
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Sakai H, Fujii R, Kuwahara Y, Upreti BN, Shrestha SD. Core drilling of the basin-fill sediments in the Kathmandu Valley for palaeoclimatic study: preliminary results. ACTA ACUST UNITED AC 2001. [DOI: 10.3126/jngs.v25i0.32038] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Core drillings in ancient lake sediments of the Kathmandu Valley, central Nepal Himalaya were carried out in order to clarify the past Indian monsoon climate and its linkage to the uplift of the Himalaya. This is the first large-scale drilling project in the valley with full core recovery, and solely dedicated to academic research purpose. The drilling penetrated the whole sequence of 208 m thick Kalimati Clay, newly defined as the Kalimati Formation.
Based on the drill-core study, the sediments are divided into three formations: 1) Bagmati Formation, 2) Kalimati Formation, and 3) Patan Formation in ascending order. These formations have very distinct sedimentary characteristics: Bagmati essentially gravelly, Kalimati clayey and Patan sandy. The lower part of the Kalimati Formation, showing marginal lake facies, has been designated as the Basal Lignite Member. Judging from the lithology and sedimentary facies and previous studies on the Lukundol Formation, the Bagmati Formation is interpreted to have been deposited by the Proto-Bagmati River prior to the appearance of the lake before 2 Ma. The clay-predominant Kalimati Formation lying over the Lignite Member was deposited in an open lacustrine environment, which is mainly composed of carbonaceous clay yielding abundant fossil leaves and diatomaceous laminite. The fluvial sand of the Patan Formation rests on the Kalimati clay bed with a marked erosional base. The 14C age of the uppermost part of-the Kalimati Formation suggests that the lake water of the Kathmandu Basin was drained out later than 10 kyr B. P. (Fujii and Sakai 2002). Based on comparison of the present altitude of the ancient lake floor and top set beds of the lacustrine delta sediments (dated as 29 kyr B.P.), the water-depth of the Palaeo-Kathmandu Lake in the central part of the valley is estimated to be about 70 m.
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Fukusumi S, Habata Y, Yoshida H, Iijima N, Kawamata Y, Hosoya M, Fujii R, Hinuma S, Kitada C, Shintani Y, Suenaga M, Onda H, Nishimura O, Tanaka M, Ibata Y, Fujino M. Characteristics and distribution of endogenous RFamide-related peptide-1. Biochim Biophys Acta 2001; 1540:221-32. [PMID: 11583817 DOI: 10.1016/s0167-4889(01)00135-5] [Citation(s) in RCA: 137] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
We have recently identified RFamide-related peptide (RFRP) gene that would encode three peptides (i.e., RFRP-1, -2, and -3) in human and bovine, and demonstrated that synthetic RFRP-1 and -3 act as specific agonists for a G protein-coupled receptor OT7T022. However, molecular characteristics and tissue distribution of endogenous RFRPs have not been determined yet. In this study, we prepared a monoclonal antibody for the C-terminal portion of rat RFRP-1. As this antibody could recognize a consensus sequence among the C-terminal portions of rat, human, and bovine RFRP-1, we purified endogenous RFRP-1 from bovine hypothalamus on the basis of immunoreactivity to the antibody. The purified bovine endogenous RFRP-1 was found to have 35-amino-acid length that corresponds to 37-amino-acid length in human and rat. We subsequently constructed a sandwich enzyme immunoassay using the monoclonal antibody and a polyclonal antibody for the N-terminal portion of rat RFRP-1, and analyzed the tissue distribution of endogenous RFRP-1 in rats. Significant levels of RFRP-1 were detected only in the central nervous system, and the highest concentration of RFRP-1 was detected in the hypothalamus. RFRP-1-positive nerve cells were detected in the rat hypothalamus by immunohistochemical analyses using the monoclonal antibody. In culture, RFRP-1 lowered cAMP production in Chinese hamster ovary cells expressing OT7T022 and it was abolished by pre-treatment with pertussis toxin, suggesting that OT7T022 couples G(i)/G(o) in the signal transduction pathway.
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Affiliation(s)
- S Fukusumi
- Discovery Research Laboratories I, Pharmaceutical Research Division, Takeda Chemical Industries Ltd., Tsukuba, Japan
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