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Ohtsuka Y, Suehiro S, Inoue A, Ohnishi T, Nishikawa M, Yamashita D, Yano H, Choudhury ME, Ozaki S, Sampetrean O, Saya H, Watanabe H, Tanaka J, Kunieda T. Berberine as a potential enhancer for 5-ALA-mediated fluorescence in glioblastoma: increasing detectability of infiltrating glioma stem cells to optimize 5-ALA-guided surgery. J Neurosurg 2024:1-11. [PMID: 38457785 DOI: 10.3171/2023.12.jns231506] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 12/26/2023] [Indexed: 03/10/2024]
Abstract
OBJECTIVE The prognosis of glioblastoma (GBM) correlates with residual tumor volume after surgery. In fluorescence-guided surgery, 5-aminolevulinic acid (ALA) has been used to maximize resection while avoiding neurological morbidity. However, not all tumor cells, particularly glioma stem cells (GSCs), display 5-ALA-mediated protoporphyrin IX (PpIX) fluorescence (5-ALA fluorescence). The authors searched for repositioned drugs that affect mitochondrial functions and energy metabolism, identifying berberine (BBR) as a potential enhancer of 5-ALA fluorescence. In this study, they investigated whether BBR can enhance 5-ALA fluorescence in GSCs and whether BBR can be applied to clinical practice as a 5-ALA fluorescence enhancer. METHODS The effects of BBR on 5-ALA fluorescence in glioma and GSCs were evaluated by flow cytometry (fluorescence-activated cell sorting [FACS]) analysis. As 5-ALA is metabolized for heme synthesis, the effects of BBR on mRNA expressions of 7 enzymes in the heme-synthesis pathway were analyzed. Enzymes showing significantly higher expression than control in all cells were identified and protein analysis was performed. To examine clinical availability, the detectability and cytotoxicity of BBR in tumor-transplanted mice were analyzed. RESULTS Fluorescence microscopy revealed much more intense 5-ALA fluorescence in both GSCs and non-stem cells with 5-ALA and BBR than with 5-ALA alone. FACS showed that BBR greatly enhanced 5-ALA fluorescence compared with 5-ALA alone, and enhancement was much higher for GSCs than for glioma cells. Among the 7 enzymes examined, BBR upregulated mRNA expressions of ALA synthetase 1 (ALAS1) more highly in all cells, and activated ALAS1 through deregulating ALAS1 activity inhibited by the negative feedback of heme. An in vivo study showed that 5-ALA fluorescence with 5-ALA and BBR was significantly stronger than with 5-ALA alone, and the sensitivity and specificity of BBR-enhanced fluorescence were both 100%. In addition, BBR did not show any cytotoxicity for normal brain tissue surrounding the tumor mass. CONCLUSIONS BBR enhanced 5-ALA-mediated PpIX fluorescence by upregulating and activating ALAS1 through deregulation of negative feedback inhibition by heme. BBR is a clinically used drug with no side effects. BBR is expected to significantly augment fluorescence-guided surgery and photodynamic therapy.
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Affiliation(s)
- Yoshihiro Ohtsuka
- 1Department of Neurosurgery, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime
| | - Satoshi Suehiro
- 1Department of Neurosurgery, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime
| | - Akihiro Inoue
- 1Department of Neurosurgery, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime
| | - Takanori Ohnishi
- 2Department of Neurosurgery, Washoukai Sadamoto Hospital, Takehara, Matsuyama, Ehime
| | - Masahiro Nishikawa
- 1Department of Neurosurgery, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime
| | - Daisuke Yamashita
- 1Department of Neurosurgery, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime
| | - Hajime Yano
- 3Department of Molecular Biology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime
| | - Mohammed E Choudhury
- 3Department of Molecular Biology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime
| | - Saya Ozaki
- 1Department of Neurosurgery, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime
| | - Oltea Sampetrean
- 4Division of Gene Regulation, Institute for Advanced Medical Research, School of Medicine, Keio University, Shinanomachi, Shinjuku-ku, Tokyo; and
| | - Hideyuki Saya
- 5Division of Gene Regulation, Cancer Center, Fujita Health University, Kutsukake Dengakugakubo, Toyoake, Aichi, Japan
| | - Hideaki Watanabe
- 1Department of Neurosurgery, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime
| | - Junya Tanaka
- 3Department of Molecular Biology, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime
| | - Takeharu Kunieda
- 1Department of Neurosurgery, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime
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Inoue A, Ohnishi T, Nishikawa M, Ohtsuka Y, Kusakabe K, Yano H, Tanaka J, Kunieda T. A Narrative Review on CD44's Role in Glioblastoma Invasion, Proliferation, and Tumor Recurrence. Cancers (Basel) 2023; 15:4898. [PMID: 37835592 PMCID: PMC10572085 DOI: 10.3390/cancers15194898] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/05/2023] [Accepted: 10/06/2023] [Indexed: 10/15/2023] Open
Abstract
High invasiveness is a characteristic of glioblastoma (GBM), making radical resection almost impossible, and thus, resulting in a tumor with inevitable recurrence. GBM recurrence may be caused by glioma stem-like cells (GSCs) that survive many kinds of therapy. GSCs with high expression levels of CD44 are highly invasive and resistant to radio-chemotherapy. CD44 is a multifunctional molecule that promotes the invasion and proliferation of tumor cells via various signaling pathways. Among these, paired pathways reciprocally activate invasion and proliferation under different hypoxic conditions. Severe hypoxia (0.5-2.5% O2) upregulates hypoxia-inducible factor (HIF)-1α, which then activates target genes, including CD44, TGF-β, and cMET, all of which are related to tumor migration and invasion. In contrast, moderate hypoxia (2.5-5% O2) upregulates HIF-2α, which activates target genes, such as vascular endothelial growth factor (VEGF)/VEGFR2, cMYC, and cyclin D1. All these genes are related to tumor proliferation. Oxygen environments around GBM can change before and after tumor resection. Before resection, the oxygen concentration at the tumor periphery is severely hypoxic. In the reparative stage after resection, the resection cavity shows moderate hypoxia. These observations suggest that upregulated CD44 under severe hypoxia may promote the migration and invasion of tumor cells. Conversely, when tumor resection leads to moderate hypoxia, upregulated HIF-2α activates HIF-2α target genes. The phenotypic transition regulated by CD44, leading to a dichotomy between invasion and proliferation according to hypoxic conditions, may play a crucial role in GBM recurrence.
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Affiliation(s)
- Akihiro Inoue
- Department of Neurosurgery, Ehime University Graduate School of Medicine, 454 Shitsukawa, Toon 791-0295, Ehime, Japan; (M.N.); (Y.O.); (K.K.); (T.K.)
| | - Takanori Ohnishi
- Department of Neurosurgery, Ehime University Graduate School of Medicine, 454 Shitsukawa, Toon 791-0295, Ehime, Japan; (M.N.); (Y.O.); (K.K.); (T.K.)
- Department of Neurosurgery, Advanced Brain Disease Center, Washoukai Sadamoto Hospital, 1-6-1 Takehara, Matsuyama 790-0052, Ehime, Japan
| | - Masahiro Nishikawa
- Department of Neurosurgery, Ehime University Graduate School of Medicine, 454 Shitsukawa, Toon 791-0295, Ehime, Japan; (M.N.); (Y.O.); (K.K.); (T.K.)
| | - Yoshihiro Ohtsuka
- Department of Neurosurgery, Ehime University Graduate School of Medicine, 454 Shitsukawa, Toon 791-0295, Ehime, Japan; (M.N.); (Y.O.); (K.K.); (T.K.)
| | - Kosuke Kusakabe
- Department of Neurosurgery, Ehime University Graduate School of Medicine, 454 Shitsukawa, Toon 791-0295, Ehime, Japan; (M.N.); (Y.O.); (K.K.); (T.K.)
| | - Hajime Yano
- Department of Molecular and Cellular Physiology, Ehime University Graduate School of Medicene, 454 Shitsukawa, Toon 791-0295, Ehime, Japan; (H.Y.); (J.T.)
| | - Junya Tanaka
- Department of Molecular and Cellular Physiology, Ehime University Graduate School of Medicene, 454 Shitsukawa, Toon 791-0295, Ehime, Japan; (H.Y.); (J.T.)
| | - Takeharu Kunieda
- Department of Neurosurgery, Ehime University Graduate School of Medicine, 454 Shitsukawa, Toon 791-0295, Ehime, Japan; (M.N.); (Y.O.); (K.K.); (T.K.)
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Inoue A, Ohnishi T, Nishikawa M, Watanabe H, Kusakabe K, Taniwaki M, Yano H, Ohtsuka Y, Matsumoto S, Suehiro S, Yamashita D, Shigekawa S, Takahashi H, Kitazawa R, Tanaka J, Kunieda T. Identification of CD44 as a Reliable Biomarker for Glioblastoma Invasion: Based on Magnetic Resonance Imaging and Spectroscopic Analysis of 5-Aminolevulinic Acid Fluorescence. Biomedicines 2023; 11:2369. [PMID: 37760811 PMCID: PMC10525185 DOI: 10.3390/biomedicines11092369] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 08/17/2023] [Accepted: 08/22/2023] [Indexed: 09/29/2023] Open
Abstract
Recurrent glioblastoma multiforme (GBM) is largely attributed to peritumoral infiltration of tumor cells. As higher CD44 expression in the tumor periphery correlates with higher risk of GBM invasion, the present study analyzed the relationship between CD44 expression and magnetic resonance imaging (MRI)-based invasiveness of GBM on a large scale. We also quantitatively evaluated GBM invasion using 5-aminolevulinic acid (5-ALA) spectroscopy to investigate the relationship between CD44 expression and tumor invasiveness as evaluated by intraoperative 5-ALA intensity. Based on MRI, GBM was classified as high-invasive type in 28 patients and low-invasive type in 22 patients. High-invasive type expressed CD44 at a significantly higher level than low-invasive type and was associated with worse survival. To quantitatively analyze GBM invasiveness, the relationship between tumor density in the peritumoral area and the spectroscopic intensity of 5-ALA was investigated. Spectroscopy showed that the 5-ALA intensity of infiltrating tumor cells correlated with tumor density as represented by the Ki-67 staining index. No significant correlation between CD44 and degree of 5-ALA-based invasiveness of GBM was found, but invasiveness of GBM as evaluated by 5-ALA matched the classification from MRI in all except one case, indicating that CD44 expression at the GBM periphery could provide a reliable biomarker for invasiveness in GBM.
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Affiliation(s)
- Akihiro Inoue
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime 791-0295, Japan; (M.N.); (H.W.); (K.K.); (Y.O.); (S.M.); (S.S.); (D.Y.); (S.S.); (T.K.)
| | - Takanori Ohnishi
- Department of Neurosurgery, Washoukai Sadamoto Hospital, 1-6-1 Takehara, Matsuyama, Ehime 790-0052, Japan;
| | - Masahiro Nishikawa
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime 791-0295, Japan; (M.N.); (H.W.); (K.K.); (Y.O.); (S.M.); (S.S.); (D.Y.); (S.S.); (T.K.)
| | - Hideaki Watanabe
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime 791-0295, Japan; (M.N.); (H.W.); (K.K.); (Y.O.); (S.M.); (S.S.); (D.Y.); (S.S.); (T.K.)
| | - Kosuke Kusakabe
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime 791-0295, Japan; (M.N.); (H.W.); (K.K.); (Y.O.); (S.M.); (S.S.); (D.Y.); (S.S.); (T.K.)
| | - Mashio Taniwaki
- Division of Diagnostic Pathology, Ehime University Hospital, 454 Shitsukawa, Toon, Ehime 791-0295, Japan; (M.T.); (R.K.)
| | - Hajime Yano
- Department of Molecular and Cellular Physiology, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime 791-0295, Japan; (H.Y.); (J.T.)
| | - Yoshihiro Ohtsuka
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime 791-0295, Japan; (M.N.); (H.W.); (K.K.); (Y.O.); (S.M.); (S.S.); (D.Y.); (S.S.); (T.K.)
| | - Shirabe Matsumoto
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime 791-0295, Japan; (M.N.); (H.W.); (K.K.); (Y.O.); (S.M.); (S.S.); (D.Y.); (S.S.); (T.K.)
| | - Satoshi Suehiro
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime 791-0295, Japan; (M.N.); (H.W.); (K.K.); (Y.O.); (S.M.); (S.S.); (D.Y.); (S.S.); (T.K.)
| | - Daisuke Yamashita
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime 791-0295, Japan; (M.N.); (H.W.); (K.K.); (Y.O.); (S.M.); (S.S.); (D.Y.); (S.S.); (T.K.)
| | - Seiji Shigekawa
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime 791-0295, Japan; (M.N.); (H.W.); (K.K.); (Y.O.); (S.M.); (S.S.); (D.Y.); (S.S.); (T.K.)
| | - Hisaaki Takahashi
- Division of Pathophysiology, Faculty of Pharmaceutical Sciences, Hokuriku University, Kanazawa, Ishikawa 920-1181, Japan;
| | - Riko Kitazawa
- Division of Diagnostic Pathology, Ehime University Hospital, 454 Shitsukawa, Toon, Ehime 791-0295, Japan; (M.T.); (R.K.)
| | - Junya Tanaka
- Department of Molecular and Cellular Physiology, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime 791-0295, Japan; (H.Y.); (J.T.)
| | - Takeharu Kunieda
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime 791-0295, Japan; (M.N.); (H.W.); (K.K.); (Y.O.); (S.M.); (S.S.); (D.Y.); (S.S.); (T.K.)
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Kusakabe K, Inoue A, Watanabe H, Nakamura Y, Nishikawa M, Ohtsuka Y, Ogura M, Shigekawa S, Taniwaki M, Kitazawa R, Kunieda T. Perioperative perampanel administration for early seizure prophylaxis in brain tumor patients. Surg Neurol Int 2023; 14:287. [PMID: 37680915 PMCID: PMC10481804 DOI: 10.25259/sni_495_2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Accepted: 07/26/2023] [Indexed: 09/09/2023] Open
Abstract
Background The efficacy of perioperative prophylactic antiepileptic drug therapy in "seizure-naïve" patients with brain tumor, including glioblastoma (GBM), remains controversial. This study investigated whether perampanel (PER) is effective and safe for preventing perioperative onset of epileptic seizures, so-called early seizure, in patients with brain tumors. Methods Forty-five patients underwent tumor resection through craniotomy for a primary supratentorial brain tumor at Ehime University Hospital between April 2021 and July 2022. PER was administered from the 1st to the 6th day after surgery for seizure prophylaxis. Occurrence of early seizure, hematological toxicities, and various side effects were recorded on postoperative days 7 and 14. In addition, the clinical course of these patients was compared with 42 brain tumor patients under the same treatment protocol who received levetiracetam (LEV) for seizure prophylaxis between April 2017 and October 2018. Results In 45 patients with brain tumor, including GBM, who received PER administration, no early seizures were identified within 7 days postoperatively. No adverse drug reactions such as hematological toxicity, liver or kidney dysfunction, or exanthematous drug eruption were observed in any cases. As side effects, somnolence was reported in 14 patients (31.1%), vertigo in 3 patients (6.7%), and headache in 3 patients (6.7%). Although somnolence and vertigo were difficult to assess in the case of intraparenchymal tumors, particularly GBM, these side effects were not identified in patients with extraparenchymal tumors such as meningiomas, epidermoid cysts, and pituitary adenomas. In addition, no significant differences were identified compared to patients who received LEV. Conclusion The efficacy and safety of PER in preventing early seizures among patients with brain tumors were retrospectively evaluated. Perioperative administration of PER to patients with brain tumors may reduce the risk of early seizures without incurring serious side effects, showing no significant differences compared to patients who received LEV.
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Affiliation(s)
- Kosuke Kusakabe
- Department of Neurosurgery, Ehime University School of Medicine, Toon, Japan
| | - Akihiro Inoue
- Department of Neurosurgery, Ehime University School of Medicine, Toon, Japan
| | - Hideaki Watanabe
- Department of Neurosurgery, Ehime University School of Medicine, Toon, Japan
| | - Yawara Nakamura
- Department of Neurosurgery, Ehime University School of Medicine, Toon, Japan
| | - Masahiro Nishikawa
- Department of Neurosurgery, Ehime University School of Medicine, Toon, Japan
| | - Yoshihiro Ohtsuka
- Department of Neurosurgery, Ehime University School of Medicine, Toon, Japan
| | - Masahiro Ogura
- Department of Rehabilitation, Ehime University Hospital, Toon, Japan
| | - Seiji Shigekawa
- Department of Neurosurgery, Ehime University School of Medicine, Toon, Japan
| | - Mashio Taniwaki
- Division of Diagnostic Pathology, Ehime University Hospital, Toon, Japan
| | - Riko Kitazawa
- Division of Diagnostic Pathology, Ehime University Hospital, Toon, Japan
| | - Takeharu Kunieda
- Department of Neurosurgery, Ehime University School of Medicine, Toon, Japan
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Nakamura Y, Inoue A, Nishikawa M, Ohnishi T, Yano H, Kanemura Y, Ohtsuka Y, Ozaki S, Kusakabe K, Suehiro S, Yamashita D, Shigekawa S, Watanabe H, Kitazawa R, Tanaka J, Kunieda T. Quantitative measurement of peritumoral concentrations of glutamate, N-acetyl aspartate, and lactate on magnetic resonance spectroscopy predicts glioblastoma-related refractory epilepsy. Acta Neurochir (Wien) 2022; 164:3253-3266. [PMID: 36107232 DOI: 10.1007/s00701-022-05363-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 09/03/2022] [Indexed: 02/01/2023]
Abstract
BACKGROUND Increased extracellular glutamate is known to cause epileptic seizures in patients with glioblastoma (GBM). However, predicting whether the seizure will be refractory is difficult. The present study investigated whether evaluation of the levels of various metabolites, including glutamate, can predict the occurrence of refractory seizure in GBM by quantitative measurement of metabolite concentrations on magnetic resonance spectroscopy (MRS). METHODS Forty patients were treated according to the same treatment protocol for primary GBM at Ehime University Hospital between April 2017 and July 2021. Of these patients, 23 underwent MRS to determine concentrations of metabolites, including glutamate, N-acetylaspartate, creatine, and lactate, in the tumor periphery by applying LC-Model. The concentration of each metabolite was expressed as a ratio to creatine concentration. Patients were divided into three groups: Type A, patients with no seizures; Type B, patients with seizures that disappeared after treatment; and Type C, patients with seizures that remained unrelieved or appeared after treatment (refractory seizures). Relationships between concentrations of metabolites and seizure types were investigated. RESULTS In 23 GBMs, seizures were confirmed in 11 patients, including Type B in four and Type C in seven. Patients with epilepsy (Type B or C) showed significantly higher glutamate and N-acetylaspartate values than did non-epilepsy patients (Type A) (p < 0.05). No significant differences in glutamate or N-acetylaspartate levels were seen between Types B and C. Conversely, Type C showed significantly higher concentrations of lactate than did Type B (p = 0.001). Cutoff values of lactate-to-creatine, glutamate-to-creatine, and N-acetylaspartate-to-creatine ratios for refractory seizure were > 1.25, > 1.09, and > 0.88, respectively. CONCLUSIONS Extracellular concentrations of glutamate, N-acetylaspartate, and lactate in the tumor periphery were significantly elevated in patients with GBM with refractory seizures. Measurement of these metabolites on MRS may predict refractory epilepsy in such patients and could be an indicator for continuing the use of antiepileptic drugs.
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Affiliation(s)
- Yawara Nakamura
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Akihiro Inoue
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan.
| | - Masahiro Nishikawa
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Takanori Ohnishi
- Department of Neurosurgery, Washoukai Sadamoto Hospital, 1-6-1 Takehara, Matsuyama, Ehime, 790-0052, Japan
| | - Hajime Yano
- Department of Molecular and Cellular Physiology, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Yonehiro Kanemura
- Department of Biomedical Research and Innovation, Institute for Clinical Research, National Hospital Organization Osaka National Hospital, 2-1-14 Hoenzaka, Osaka, 540-0006, Japan.,Department of Neurosurgery, National Hospital Organization Osaka National Hospital, 2-1-14 Hoenzaka, Osaka, 540-0006, Japan
| | - Yoshihiro Ohtsuka
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Saya Ozaki
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Kosuke Kusakabe
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Satoshi Suehiro
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Daisuke Yamashita
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Seiji Shigekawa
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Hideaki Watanabe
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Riko Kitazawa
- Division of Diagnostic Pathology, Ehime University Hospital, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Junya Tanaka
- Department of Molecular and Cellular Physiology, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Takeharu Kunieda
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
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Yamashita D, Suehiro S, Ohtsuka Y, Ozaki S, Nishikawa M, Inoue A, Kohno S, Ohue S, Ohnishi T, Kunieda T. COT-3 Exosomal microRNA expression signature in blood and cerebrospinal fluid of glioblastoma patients. Neurooncol Adv 2021. [PMCID: PMC8648223 DOI: 10.1093/noajnl/vdab159.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Analysis of exosomes derived from plasma or cerebrospinal fluid (CSF) has emerged as a promising biomarker platform for therapeutic monitoring in glioblastoma patients. However, the contents of the various subpopulations of exosomes in these clinical specimens remain poorly defined. Here we characterize the relative abundance of miRNA species in exosomes derived from the plasma and CSF of glioblastoma patients. To this end, we first employed miRNA arrays to measure the expression of exosomal miRNAs in the plasma from glioblastoma patients (n = 24) and healthy volunteers (n = 7) as control. In addition, we performed global miRNA profiling of exosomal miRNAs in the CSF from glioblastoma patients (n = 5) and non-tumoral patients (n = 3; hydrocephalus patients) as control. In plasma derived exosomes, 80 miRNAs were altered by >2-fold in glioblastoma patients compared to controls. In CSF, 92 miRNAs were altered by >2-fold in glioblastoma patients compared to controls. Combined analysis of plasma and CSF revealed a similar fold difference in eight miRNAs. Next, we measured these eight miRNAs expression in in the plasma from pre- and post-operative glioblastoma patients (n = 9). Among these eight miRNAs, we identified only one miRNA (miR-34b-3p) that was upregulated in exosomes from pre-operative glioblastoma patients. Our results suggest that miR-34b-3p might have a potential as a novel diagnostic marker or a therapeutic tool for glioblastoma patients.
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Affiliation(s)
- Daisuke Yamashita
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Satoshi Suehiro
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Yoshihiro Ohtsuka
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Saya Ozaki
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
- Department of Regeneration of Community Medicine, Ehime University Graduate School of Medicine, Toon, Japan
| | - Masahiro Nishikawa
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
- Department of Neurosurgery, Oozuchuo Hospital, Oozu, Japan
| | - Akihiro Inoue
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Shohei Kohno
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
- Department of Neurosurgery, Japanese Red Cross Society Himeji Hospital, Himeji, Japan
| | - Shiro Ohue
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
- Department of Neurosurgery, Stroke Center, Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - Takanori Ohnishi
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
- Department of Neurosurgery, Washoukai Sadamoto Hospital, Matsuyama, Japan
| | - Takeharu Kunieda
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
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Ozaki S, Umakoshi A, Yano H, Ohsumi S, Sumida Y, Hayase E, Usa E, Islam A, Choudhury ME, Nishi Y, Yamashita D, Ohtsuka Y, Nishikawa M, Inoue A, Suehiro S, Kuwabara J, Watanabe H, Takada Y, Watanabe Y, Nakano I, Kunieda T, Tanaka J. Chloride intracellular channel protein 2 is secreted and inhibits MMP14 activity, while preventing tumor cell invasion and metastasis. Neoplasia 2021; 23:754-765. [PMID: 34229297 PMCID: PMC8260957 DOI: 10.1016/j.neo.2021.06.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 06/02/2021] [Accepted: 06/02/2021] [Indexed: 12/20/2022] Open
Abstract
CLIC2 is highly expressed in benign, less invasive and less metastatic tumors. Forced expression of CLIC2 prevents metastasis and invasion in animal tumor models. CLIC2 is associated with decreased vascular permeability in tumor masses. CLIC2, a secretable soluble protein, can bind to and inhibit MMP14. Extracellular CLIC2 can suppress malignant cell invasion.
The abilities to invade surrounding tissues and metastasize to distant organs are the most outstanding features that distinguish malignant from benign tumors. However, the mechanisms preventing the invasion and metastasis of benign tumor cells remain unclear. By using our own rat distant metastasis model, gene expression of cells in primary tumors was compared with that in metastasized tumors. Among many distinct gene expressions, we have focused on chloride intracellular channel protein 2 (CLIC2), an ion channel protein of as-yet unknown function, which was predominantly expressed in the primary tumors. We created CLIC2 overexpressing rat glioma cell line and utilized benign human meningioma cells with naturally high CLIC2 expression. CLIC2 was expressed at higher levels in benign human brain tumors than in their malignant counterparts. Moreover, its high expression was associated with prolonged survival in the rat metastasis and brain tumor models as well as with progression-free survival in patients with brain tumors. CLIC2 was also correlated with the decreased blood vessel permeability likely by increased contents of cell adhesion molecules. We found that CLIC2 was secreted extracellularly, and bound to matrix metalloproteinase (MMP) 14. Furthermore, CLIC2 prevented the localization of MMP14 in the plasma membrane, and inhibited its enzymatic activity. Indeed, overexpressing CLIC2 and recombinant CLIC2 protein effectively suppressed malignant cell invasion, whereas CLIC2 knockdown reversed these effects. Thus, CLIC2 suppress invasion and metastasis of benign tumors at least partly by inhibiting MMP14 activity.
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Affiliation(s)
- Saya Ozaki
- Department of Neurosurgery, Graduate School of Medicine, Ehime University, Japan
| | - Akihiro Umakoshi
- Department of Molecular and Cellular Physiology, Graduate School of Medicine, Ehime University, Japan
| | - Hajime Yano
- Department of Molecular and Cellular Physiology, Graduate School of Medicine, Ehime University, Japan
| | - Shota Ohsumi
- Department of Molecular and Cellular Physiology, Graduate School of Medicine, Ehime University, Japan
| | - Yutaro Sumida
- Department of Molecular and Cellular Physiology, Graduate School of Medicine, Ehime University, Japan
| | - Erika Hayase
- Department of Molecular and Cellular Physiology, Graduate School of Medicine, Ehime University, Japan
| | - Eika Usa
- Department of Molecular and Cellular Physiology, Graduate School of Medicine, Ehime University, Japan
| | - Afsana Islam
- Department of Molecular and Cellular Physiology, Graduate School of Medicine, Ehime University, Japan
| | - Mohammed E Choudhury
- Department of Molecular and Cellular Physiology, Graduate School of Medicine, Ehime University, Japan
| | - Yusuke Nishi
- Department of Hepato-biliary Pancreatic Surgery and Breast Surgery, Graduate School of Medicine, Ehime University, Japan
| | - Daisuke Yamashita
- Department of Neurosurgery, Graduate School of Medicine, Ehime University, Japan
| | - Yoshihiro Ohtsuka
- Department of Neurosurgery, Graduate School of Medicine, Ehime University, Japan
| | - Masahiro Nishikawa
- Department of Neurosurgery, Graduate School of Medicine, Ehime University, Japan
| | - Akihiro Inoue
- Department of Neurosurgery, Graduate School of Medicine, Ehime University, Japan
| | - Satoshi Suehiro
- Department of Neurosurgery, Graduate School of Medicine, Ehime University, Japan
| | - Jun Kuwabara
- Department of Gastrointestinal Surgery and Surgical Oncology, Graduate School of Medicine, Ehime University, Japan
| | - Hideaki Watanabe
- Department of Neurosurgery, Graduate School of Medicine, Ehime University, Japan
| | - Yasutsugu Takada
- Department of Hepato-biliary Pancreatic Surgery and Breast Surgery, Graduate School of Medicine, Ehime University, Japan
| | - Yuji Watanabe
- Department of Gastrointestinal Surgery and Surgical Oncology, Graduate School of Medicine, Ehime University, Japan
| | - Ichiro Nakano
- Research and Development Center for Precision Medicine, University of Tsukuba, Tsukuba, Japan
| | - Takeharu Kunieda
- Department of Neurosurgery, Graduate School of Medicine, Ehime University, Japan
| | - Junya Tanaka
- Department of Molecular and Cellular Physiology, Graduate School of Medicine, Ehime University, Japan.
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8
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Nishikawa M, Inoue A, Ohnishi T, Yano H, Ozaki S, Kanemura Y, Suehiro S, Ohtsuka Y, Kohno S, Ohue S, Shigekawa S, Watanabe H, Kitazawa R, Tanaka J, Kunieda T. Hypoxia-induced phenotypic transition from highly invasive to less invasive tumors in glioma stem-like cells: Significance of CD44 and osteopontin as therapeutic targets in glioblastoma. Transl Oncol 2021; 14:101137. [PMID: 34052625 PMCID: PMC8175402 DOI: 10.1016/j.tranon.2021.101137] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 05/10/2021] [Accepted: 05/21/2021] [Indexed: 01/13/2023] Open
Abstract
CD44, upregulated by HIF-1α under 1%O2, induces highly invasive phenotype GSCs. HIF-2α-activated OPN under 5%O2 promotes less-invasive/proliferative type GSCs. CD44 and OPN knockdowns inhibit in vitro/vivo GSCs invasion and proliferation.
The poor prognosis of glioblastoma multiforme (GBM) is primarily due to highly invasive glioma stem-like cells (GSCs) in tumors. Upon GBM recurrence, GSCs with highly invasive and highly migratory activities must assume a less-motile state and proliferate to regenerate tumor mass. Elucidating the molecular mechanism underlying this transition from a highly invasive phenotype to a less-invasive, proliferative tumor could facilitate the identification of effective molecular targets for treating GBM. Here, we demonstrate that severe hypoxia (1% O2) upregulates CD44 expression via activation of hypoxia-inducible factor (HIF-1α), inducing GSCs to assume a highly invasive tumor. In contrast, moderate hypoxia (5% O2) upregulates osteopontin expression via activation of HIF-2α. The upregulated osteopontin inhibits CD44-promoted GSC migration and invasion and stimulates GSC proliferation, inducing GSCs to assume a less-invasive, highly proliferative tumor. These data indicate that the GSC phenotype is determined by interaction between CD44 and osteopontin. The expression of both CD44 and osteopontin is regulated by differential hypoxia levels. We found that CD44 knockdown significantly inhibited GSC migration and invasion both in vitro and in vivo. Mouse brain tumors generated from CD44-knockdown GSCs exhibited diminished invasiveness, and the mice survived significantly longer than control mice. In contrast, siRNA-mediated silencing of the osteopontin gene decreased GSC proliferation. These results suggest that interaction between CD44 and osteopontin plays a key role in tumor progression in GBM; inhibition of both CD44 and osteopontin may represent an effective therapeutic approach for suppressing tumor progression, thus resulting in a better prognosis for patients with GBM.
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Affiliation(s)
- Masahiro Nishikawa
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Ehime 791-0295, Japan
| | - Akihiro Inoue
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Ehime 791-0295, Japan.
| | - Takanori Ohnishi
- Department of Neurosurgery, Washokai Sadamoto Hospital, Matsuyama, Ehime 790-0052, Japan
| | - Hajime Yano
- Department of Molecular and Cellular Physiology, Ehime University Graduate School of Medicine, Toon, Ehime 791-0295, Japan
| | - Saya Ozaki
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Ehime 791-0295, Japan
| | - Yonehiro Kanemura
- Department of Biomedical Research and Innovation, Institute for Clinical Research, National Hospital Organization Osaka National Hospital, Osaka 540-0006, Japan; Department of Neurosurgery, National Hospital Organization Osaka National Hospital, Osaka 540-0006, Japan
| | - Satoshi Suehiro
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Ehime 791-0295, Japan
| | - Yoshihiro Ohtsuka
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Ehime 791-0295, Japan
| | - Shohei Kohno
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Ehime 791-0295, Japan
| | - Shiro Ohue
- Department of Neurosurgery, Ehime Prefectural Central Hospital, Matsuyama, Ehime 790-0024, Japan
| | - Seiji Shigekawa
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Ehime 791-0295, Japan
| | - Hideaki Watanabe
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Ehime 791-0295, Japan
| | - Riko Kitazawa
- Division of Diagnostic Pathology, Ehime University Hospital, Toon, Ehime 791-0295, Japan
| | - Junya Tanaka
- Department of Molecular and Cellular Physiology, Ehime University Graduate School of Medicine, Toon, Ehime 791-0295, Japan
| | - Takeharu Kunieda
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Ehime 791-0295, Japan
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9
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Yamashita D, Flanary V, Yamaguchi S, Ohtsuka Y, Ozaki S, Suehiro S, Inoue A, Gorospe M, Nakano I, Kunieda T. CBMS-01 Mechanism of brain tumor malignancy caused by aging and social isolation. Neurooncol Adv 2020. [PMCID: PMC7699091 DOI: 10.1093/noajnl/vdaa143.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The rise in population aging worldwide is causing an unparalleled increase in death from many cancers, including glioblastoma (GBM). In advanced countries, the number of elderly people living alone is increasing due to the rapid aging of the population and the socialization of nuclear families. Here, we explored the impact of aging and social isolation on GBM tumorigenesis. In normal brain tissue, aging promoted pathways related to cytokines and inflammation, which were further promoted by social isolation. In tumor tissues, the expression of neuron/synapse-related genes was significantly reduced in aged mice, and their expression was further reduced by social isolation. In addition, the survival period of aged mice was significantly shorter than that of young mice, and the survival period was further shortened by social isolation, which was characteristic of males. This phenomenon was the same in humans, and the survival period in the young group was significantly longer than that in the elderly group, and in the elderly group, the survival period was shortened in the male elderly group living alone. Our data indicate that social isolation contributes to the highly aggressive GBM by the shift to neuro-inflammation in the elderly brain.
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Affiliation(s)
- Daisuke Yamashita
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Victoria Flanary
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Shinobu Yamaguchi
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Yoshihiro Ohtsuka
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Saya Ozaki
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Satoshi Suehiro
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Akihiro Inoue
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Myriam Gorospe
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Ichiro Nakano
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Takeharu Kunieda
- Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
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10
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Yamashita D, Suehiro S, Kohno S, Ohue S, Nakamura Y, Kouno D, Ohtsuka Y, Nishikawa M, Matsumoto S, Bernstock JD, Harada S, Mizuno Y, Kitazawa R, Ohnishi T, Kunieda T. Intracranial anaplastic solitary fibrous tumor/hemangiopericytoma: immunohistochemical markers for definitive diagnosis. Neurosurg Rev 2020; 44:1591-1600. [PMID: 32671693 DOI: 10.1007/s10143-020-01348-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/15/2020] [Accepted: 07/06/2020] [Indexed: 11/25/2022]
Abstract
Intracranial anaplastic hemangiopericytoma (AHPC) is a rare and malignant subset of solitary fibrous tumor/hemangiopericytoma (SFT/HPC) as per the WHO 2016 Classification of Tumors of the Central Nervous System. AHPC portends a poor prognosis and is associated with higher rates of recurrence/metastasis in comparison with SFT/HPC. Accordingly, it is critical to continue to define the clinical course of patients with AHPC and in so doing further refine clinicopathologic/immunohistochemical (IHC) criteria needed for definitive diagnosis. Herein, we describe clinical/histological characteristics of six patients with AHPC. In addition, we reviewed and analyzed the expression of various IHC markers reported within the literature (i.e., a total of 354 intracranial SFT/HPCs and 460 meningiomas). Histologically, tumors from our six patients were characterized by a staghorn-like vascular pattern, mitotic cells, and strong nuclear atypia. Immunohistochemically, all tumors displayed positive nuclear staining for STAT6; other markers, including CD34 and Bcl-2, were expressed only in three patients. Analysis of IHC expression patterns for SFT/HPC and meningioma within the literature revealed that nuclear expression of STAT6 had the highest specificity (100%) for SFT/HPC, followed by ALDH1 (97.2%) and CD34 (93.6%). Of note, SSTR2A (95.2%) and EMA (85%) displayed a high specificity for meningioma. Anaplastic SFT/HPC is a tumor with poor prognosis that is associated with higher rates of recurrence and metastasis in comparison with SFT/HPC. Given that anaplastic SFT/HPC requires more aggressive treatment than meningioma despite of a similar presentation on imaging, it is crucial to be able to distinguish between these tumors.
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Affiliation(s)
- Daisuke Yamashita
- Department of Neurosurgery, Ehime University Graduate School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan.
| | - Satoshi Suehiro
- Department of Neurosurgery, Ehime University Graduate School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Shohei Kohno
- Department of Neurosurgery, Ehime University Graduate School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan.,Department of Neurosurgery, Japanese Red Cross Society Himeji Hospital, Himeji, Hyogo, Japan
| | - Shiro Ohue
- Department of Neurosurgery, Ehime University Graduate School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan.,Department of Neurosurgery, Stroke Center, Ehime Prefectural Central Hospital, Matsuyama, Ehime, Japan
| | - Yawara Nakamura
- Department of Neurosurgery, Ehime University Graduate School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Daisuke Kouno
- Department of Neurosurgery, Ehime University Graduate School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Yoshihiro Ohtsuka
- Department of Neurosurgery, Ehime University Graduate School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Masahiro Nishikawa
- Department of Neurosurgery, Ehime University Graduate School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Shirabe Matsumoto
- Department of Neurosurgery, Ehime University Graduate School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Joshua D Bernstock
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard University, Boston, MA, USA
| | - Shuko Harada
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Yosuke Mizuno
- Division of Diagnostic Pathology, Ehime University Hospital, Toon, Ehime, Japan
| | - Riko Kitazawa
- Division of Diagnostic Pathology, Ehime University Hospital, Toon, Ehime, Japan
| | - Takanori Ohnishi
- Department of Neurosurgery, Ehime University Graduate School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan.,Department of Neurosurgery, Washoukai Sadamoto Hospital, Matsuyama, Ehime, Japan
| | - Takeharu Kunieda
- Department of Neurosurgery, Ehime University Graduate School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
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11
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Li C, Cho HJ, Yamashita D, Abdelrashid M, Chen Q, Bastola S, Chagoya G, Elsayed GA, Komarova S, Ozaki S, Ohtsuka Y, Kunieda T, Kornblum HI, Kondo T, Nam DH, Nakano I. Tumor edge-to-core transition promotes malignancy in primary-to-recurrent glioblastoma progression in a PLAGL1/CD109-mediated mechanism. Neurooncol Adv 2020; 2:vdaa163. [PMID: 33392508 PMCID: PMC7764499 DOI: 10.1093/noajnl/vdaa163] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Glioblastoma remains highly lethal due to its inevitable recurrence. Most of this recurrence is found locally, indicating that postsurgical tumor-initiating cells (TICs) accumulate at the tumor edge. These edge-TICs then generate local recurrence harboring new core lesions. Here, we investigated the clinical significance of the edge-to-core (E-to-C) signature generating glioblastoma recurrence and sought to identify its central mediators. METHODS First, we examined the association of E-to-C-related expression changes to patient outcome in matched primary and recurrent samples (n = 37). Specifically, we tested whether the combined decrease of the edge-TIC marker PROM1 (CD133) with the increase of the core-TIC marker CD109, representing E-to-C transition during the primary-to-recurrence progression, indicates poorer patient outcome. We then investigated the specific molecular mediators that trigger tumor recurrence driven by the E-to-C progression. Subsequently, the functional and translational significance of the identified molecule was validated with our patient-derived edge-TIC models in vitro and in vivo. RESULTS Patients exhibiting the CD133low/CD109high signature upon recurrence representing E-to-C transition displayed a strong association with poorer progression-free survival and overall survival among all tested patients. Differential gene expression identified that PLAGL1 was tightly correlated with the core TIC marker CD109 and was linked to shorter patient survival. Experimentally, forced PLAGL1 overexpression enhanced, while its knockdown reduced, glioblastoma edge-derived tumor growth in vivo and subsequent mouse survival, suggesting its essential role in the E-to-C-mediated glioblastoma progression. CONCLUSIONS E-to-C axis represents an ongoing lethal process in primary glioblastoma contributing to its recurrence, partly in a PLAGL1/CD109-mediated mechanism.
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Affiliation(s)
- Chaoxi Li
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hee Jin Cho
- Research Institute for Future Medicine, Samsung Medical Center, Seoul, Republic of Korea
- Institute for Refractory Cancer Research, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | | | - Moaaz Abdelrashid
- Department of Neurology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Qin Chen
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Soniya Bastola
- Intellectual and Developmental Disabilities Research Center, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Gustavo Chagoya
- Department of Neurosurgery, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Galal A Elsayed
- Department of Neurosurgery, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Svetlana Komarova
- Department of Neurosurgery, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Saya Ozaki
- Department of Neurosurgery, Ehime University, Japan
| | | | | | - Harley I Kornblum
- Intellectual and Developmental Disabilities Research Center, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Toru Kondo
- Division of Stem Cell Biology, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan
| | - Do-Hyun Nam
- Research Institute for Future Medicine, Samsung Medical Center, Seoul, Republic of Korea
- Institute for Refractory Cancer Research, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Ichiro Nakano
- Department of Neurosurgery, Ehime University, Japan
- Research and Development Center for Precision Medicine, Tsukuba University, Tsukuba, Japan
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12
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Nishikawa M, Inoue A, Ohtsuka Y, Ozaki S, Matsumoto S, Suehiro S, Yano H, Kanemura Y, Tanaka J, Ohnishi T, Kunieda T. CBMS-04 SIGNIFICANT ROLE OF HYPOXIA IN THE EXPRESSION AND FUNCTION OF OSTEOPONTIN IN CD44-HIGHLY EXPRESSED GLIOMA STEM-LIKE CELLS IN TUMOR PROGRESSION OF GLIOBLASTOMA. Neurooncol Adv 2019. [PMCID: PMC7213098 DOI: 10.1093/noajnl/vdz039.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The poor prognosis of glioblastoma multiforme (GBM) may be due to the surviving glioma stem-like cells (GSCs) in the tumor periphery after tumor resection. We demonstrated that CD44-expressed GSCs existed much more in the tumor periphery of high invasive (HI) type GBM than low invasive (LI) type GBM. The HI type was significantly associated with worse outcome, but how GSCs with high CD44 expression relate to tumor progression remains unknown. In this study, we investigated effects of hypoxia on CD44-directed signal pathways, leading to tumor invasion and proliferation in GBM. We focused on the CD44 ligand osteopontin (OPN) because it is known hypoxia affects the interaction of CD44 and OPN which promotes stemness and proliferation of cancer stem cells. We examined mRNA expressions of hypoxia inducible factor (HIF)-1a, HIF-2a, CD44 and OPN in tumor tissues of GBM and investigated effects of hypoxia (1%O2:severe or 5%O2:moderate) on the expression of these molecules using cultured GSCs that were established from tumor tissues showing high CD44 expression in the periphery of GBMs. In addition, we analyzed the effects of OPN on invasive, migratory and proliferative activities of GSCs under the hypoxic conditions. OPN was much higher expressed in the tumor periphery of LI type GBM than HI type GBM. Severe hypoxia significantly increased the expressions of HIF-1a and CD44 but did not OPN. On the other hands, moderate hypoxia promoted the expressions of HIF-2a and OPN. Knockdown of HIF-2a significantly inhibited OPN expression. In addition, the more OPN was expressed in the cultured GSCs under moderate hypoxia, the more the GSCs proliferated and decreased their invasive and migratory activities. In conclusion, GSCs existing in the tumor periphery of GBM can migrate or proliferate by changing CD44-directed signal pathways. Moderate hypoxia promoted HIF-2a/OPN/CD44 pathway, resulting in phenotypic transition to high proliferative tumors.
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Affiliation(s)
- Masahiro Nishikawa
- The Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Akihiro Inoue
- The Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Yoshihiro Ohtsuka
- The Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Saya Ozaki
- The Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Shirabe Matsumoto
- The Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Satoshi Suehiro
- The Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Hajime Yano
- The Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Yonehiro Kanemura
- The Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Junya Tanaka
- The Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Takanori Ohnishi
- The Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
| | - Takeharu Kunieda
- The Department of Neurosurgery, Ehime University Graduate School of Medicine, Toon, Japan
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13
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Lee HT, Ohtsuka Y, Ueda Y, Sugiyama K, Markina E, Yoshida N. Incident Ion Energy and Temperature Dependence of Helium Bubble Formation and Its Impact on D-Retention under Simultaneous He-D Irradiation of Tungsten. Fusion Science and Technology 2017. [DOI: 10.13182/fst13-a16913] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- H. T. Lee
- Graduate School of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Y. Ohtsuka
- Graduate School of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Y. Ueda
- Graduate School of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - K. Sugiyama
- Max-Planck-Institut für Plasmaphysik, EURATOM-Association, Garching, 85748, Germany
| | - E. Markina
- Max-Planck-Institut für Plasmaphysik, EURATOM-Association, Garching, 85748, Germany
| | - N. Yoshida
- Research Institute for Applied Mechanics, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
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14
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Tsukatani K, Ueda Y, Tanimoto K, Lee HT, Ohtsuka Y, Taniguchi M, Inoue T, Sakamoto K, Takagi I, Yoshida N. Deuterium Retention in Damaged Tungsten. Fusion Science and Technology 2017. [DOI: 10.13182/fst11-a12727] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- K. Tsukatani
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Y. Ueda
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - K. Tanimoto
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - H. T. Lee
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Y. Ohtsuka
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - M. Taniguchi
- Japan Atomic Energy Agency: 801-1 Mukoyama, Naka, Ibaraki, Japan
| | - T. Inoue
- Japan Atomic Energy Agency: 801-1 Mukoyama, Naka, Ibaraki, Japan
| | - K. Sakamoto
- Japan Atomic Energy Agency: 801-1 Mukoyama, Naka, Ibaraki, Japan
| | - I. Takagi
- Graduate School of Engineering, Kyoto University: Yoshidahonmachi, Sakyo, Kyoto, Japan
| | - N. Yoshida
- Interdiscplinary Graduate School of Engineering Sciences, Kyusyu University: 6-1 Kasugakoen, Kasuga, Fukuoka, Japan
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15
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Ueda Y, Kashiwagi H, Fukumoto M, Ohtsuka Y, Yoshida N. Effects of Helium Ions on Hydrogen Isotope Behavior in Tungsten. Fusion Science and Technology 2017. [DOI: 10.13182/fst09-a8881] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Y. Ueda
- Graduate School of Engineering, Osaka University, Suita, Osaka 565-9871, Japan
| | - H. Kashiwagi
- Graduate School of Engineering, Osaka University, Suita, Osaka 565-9871, Japan
| | - M. Fukumoto
- Graduate School of Engineering, Osaka University, Suita, Osaka 565-9871, Japan
| | - Y. Ohtsuka
- Graduate School of Engineering, Osaka University, Suita, Osaka 565-9871, Japan
| | - N. Yoshida
- Research Institute for Applied Mechanics, Kyushu University, Fukuoka, Japan
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16
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Inoue A, Watanabe H, Kumon Y, Ohtsuka Y, Tagawa M, Seyama T, Takechi A, Mizuno Y, Kitazawa R, Ohnishi T. [A Case of Peripheral Middle Cerebral Artery Aneurysm Showing Repeated Morphological Changes]. No Shinkei Geka 2015. [PMID: 26224465 DOI: 10.11477/mf.1436203108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
We describe a case of a peripheral ruptured middle cerebral artery(MCA)aneurysm showing repeated morphological changes within a short period of 3 months. A 69-year-old woman was admitted to her primary care hospital with headache. Cranial computed tomography (CT) showed subarachnoid hemorrhage (SAH), but ruptured aneurysm was not confirmed on 4-vessel cerebral angiography. Conservative treatment was provided in the form of pain relief and blood pressure control. However, left internal carotid artery angiography (ICAG) conducted 12 days post-onset showed a peripheral MCA aneurysm, which was enlarged 1 week later. The patient did not tolerate balloon test occlusion, showing neurological deficit. Direct surgery was planned, but angiography on day 30 revealed a reduction in aneurysm size. Medical therapy was therefore continued for 1 month; however, the aneurysm showed repeated enlargements over 3 months. The patient therefore consulted our hospital for surgery, which was performed using a transsylvian approach. As we were unable to rule out pseudoaneurysm, we performed superficial temporal artery-MCA anastomosis as a form of trapping surgery. However, the lesion appeared to likely represent a congenital aneurysm when viewed macroscopically, so we performed neck clipping as a definitive treatment. Navigation and motor-evoked potential monitoring were useful to approach the aneurysm and predict the preservation of motor function. Histological examination revealed a congenital aneurysm with organized thrombus. The postoperative course was uneventful and the patient was discharged 2 weeks after surgery without any neurological deficit.
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Affiliation(s)
- Akihiro Inoue
- Department of Neurosurgery, Ehime University School of Medicine
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17
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Inoue A, Ohnishi T, Kohno S, Ohtsuka Y, Nakamura Y, Mizuno Y, Kitazawa R, Ohue S. Two cases of pineal-region meningiomas derived from arachnoid membrane over the vein of Galen without dural attachment. World J Surg Oncol 2015. [PMID: 26205525 PMCID: PMC4513678 DOI: 10.1186/s12957-015-0645-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [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] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND We present two rare cases of pineal-region meningiomas. These tumors are the first reported cases of dura-unrelated meningiomas originating from the arachnoid membrane over the vein of Galen (AMG). CASE DESCRIPTION In Case 1, a 37-year-old woman presented with a progressing headache. Magnetic resonance imaging (MRI) showed a large tumor in the pineal region, displacing the vein of Galen upward. Angiography disclosed occlusion of the vein of Galen, with deep venous flow draining through the veins on the right medial surface of the occipital lobe to the superior sagittal sinus. In Case 2, a 67-year-old man presented with dizziness. MRI demonstrated a large mass in the pineal region, displacing the vein of Galen inferiorly. Angiography disclosed occlusion of the vein of Galen, with deep venous flow draining through the collateral venous channel into the transverse sinus. Both tumors were totally excised (Simpson Grade III for Case 1, Grade I for Case 2) via a left occipital transtentorial approach. No dural attachment was recognized in either case, but the tumor in Case 1 was firmly adherent to the inferior portion of the AMG, while that in Case 2 was attached to the superior portion of the AMG, but remained dissectible. CONCLUSIONS We reported two cases of pineal-region meningiomas originating from the arachnoid membrane over the vein of Galen, resulting in meningioma without dural attachment. These tumors can be totally resected by careful dissection of the tumor from the arachnoid membrane surrounding the vein of Galen.
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Affiliation(s)
- Akihiro Inoue
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan.
| | - Takanori Ohnishi
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan.
| | - Shohei Kohno
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan.
| | - Yoshihiro Ohtsuka
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan.
| | - Yawara Nakamura
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan.
| | - Yosuke Mizuno
- Division of Diagnostic Pathology, Ehime University Hospital, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan.
| | - Riko Kitazawa
- Division of Diagnostic Pathology, Ehime University Hospital, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan.
| | - Shiro Ohue
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan.
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18
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Inoue A, Tagawa M, Kumon Y, Watanabe H, Ohue S, Ohtsuka Y, Nakamura Y, Ohnishi T. Usefulness of the fusion imaging of 3D-CT and MRA for carotid artery stenting with minimum use of contrast medium in patient with renal dysfunction. Interv Neuroradiol 2015; 21:277-81. [PMID: 25934657 DOI: 10.1177/1591019915581941] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Patients with severe internal carotid artery (ICA) stenosis with multiple medical problems generally undergo carotid artery stenting (CAS). However, it is difficult to perform CAS in some patients because iodinated contrast medium is hard to use. We report a patient with asymptomatic ICA stenosis and chronic renal failure, in whom successful treatment was achieved using CAS with minimal use of iodinated contrast medium. A 68-year-old man with severely chronic renal failure was consulted for treatment of left ICA stenosis. Magnetic resonance angiography (MRA) and carotid echography revealed left ICA severe stenosis, and systemic non-contrast MRA showed left femoral artery constriction, but right femoral artery to be intact. CAS was therefore performed through the right femoral artery, using non-contrast three-dimensional computed tomography (3D-CT) with MRA fusion imaging, intravascular ultrasonography, and a small amount of iodinated low-osmolar contrast medium. Postoperative course was uneventful with no aggravation of renal dysfunction, and he was discharged 7 days postoperatively. These techniques are very useful for patients with chronic renal failure, and this present case represents the first report of CAS treated by using non-contrast 3D-CT with MRA fusion image technique.
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Affiliation(s)
- Akihiro Inoue
- Department of Neurosurgery, Ehime University School of Medicine, Toon, Japan
| | - Masahiko Tagawa
- Department of Neurosurgery, Ehime University School of Medicine, Toon, Japan
| | - Yoshiaki Kumon
- Department of Regeneration of Community Medicine, Ehime University School of Medicine, Toon, Japan
| | - Hideaki Watanabe
- Department of Neurosurgery, Ehime University School of Medicine, Toon, Japan
| | - Shiro Ohue
- Department of Neurosurgery, Ehime University School of Medicine, Toon, Japan
| | - Yoshihiro Ohtsuka
- Department of Neurosurgery, Ehime University School of Medicine, Toon, Japan
| | - Yawara Nakamura
- Department of Neurosurgery, Ehime University School of Medicine, Toon, Japan
| | - Takanori Ohnishi
- Department of Neurosurgery, Ehime University School of Medicine, Toon, Japan
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19
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Kaneko Y, Okita H, Haruta M, Arai Y, Oue T, Tanaka Y, Horie H, Hinotsu S, Koshinaga T, Yoneda A, Ohtsuka Y, Taguchi T, Fukuzawa M. A high incidence of WT1 abnormality in bilateral Wilms tumours in Japan, and the penetrance rates in children with WT1 germline mutation. Br J Cancer 2015; 112:1121-33. [PMID: 25688735 PMCID: PMC4366886 DOI: 10.1038/bjc.2015.13] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [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: 09/30/2014] [Revised: 12/24/2014] [Accepted: 12/31/2014] [Indexed: 01/22/2023] Open
Abstract
Background: Bilateral Wilms tumours (BWTs) occur by germline mutation of various predisposing genes; one of which is WT1 whose abnormality was reported in 17–38% of BWTs in Caucasians, whereas no such studies have been conducted in East-Asians. Carriers with WT1 mutations are increasing because of improved survival. Methods: Statuses of WT1 and IGF2 were examined in 45 BWTs from 31 patients with WT1 sequencing and SNP array-based genomic analyses. The penetrance rates were estimated in WT1-mutant familial Wilms tumours collected from the present and previous studies. Results: We detected WT1 abnormalities in 25 (81%) of 31 patients and two families, which were included in the penetrance rate analysis of familial Wilms tumour. Of 35 BWTs from the 25 patients, 31 had small homozygous WT1 mutations and uniparental disomy of IGF2, while 4 had large 11p13 deletions with the retention of 11p heterozygosity. The penetrance rate was 100% if children inherited small WT1 mutations from their fathers, and 67% if inherited the mutations from their mothers, or inherited or had de novo 11p13 deletions irrespective of parental origin (P=0.057). Conclusions: The high incidence of WT1 abnormalities in Japanese BWTs sharply contrasts with the lower incidence in Caucasian counterparts, and the penetrance rates should be clarified for genetic counselling of survivors with WT1 mutations.
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Affiliation(s)
- Y Kaneko
- 1] Department of Cancer Diagnosis, Research Institute for Clinical Oncology, Saitama Cancer Center, Ina, Saitama 362-0806, Japan [2] Japan Wilms Tumor Study Group (JWiTS), Itabashi-Ku, Tokyo 173-8610, Japan
| | - H Okita
- Japan Wilms Tumor Study Group (JWiTS), Itabashi-Ku, Tokyo 173-8610, Japan
| | - M Haruta
- 1] Department of Cancer Diagnosis, Research Institute for Clinical Oncology, Saitama Cancer Center, Ina, Saitama 362-0806, Japan [2] Japan Wilms Tumor Study Group (JWiTS), Itabashi-Ku, Tokyo 173-8610, Japan
| | - Y Arai
- Division of Cancer Genomics, National Cancer Center Research Institute, Chuo-Ku, Tokyo 104-0045, Japan
| | - T Oue
- Japan Wilms Tumor Study Group (JWiTS), Itabashi-Ku, Tokyo 173-8610, Japan
| | - Y Tanaka
- Japan Wilms Tumor Study Group (JWiTS), Itabashi-Ku, Tokyo 173-8610, Japan
| | - H Horie
- Japan Wilms Tumor Study Group (JWiTS), Itabashi-Ku, Tokyo 173-8610, Japan
| | - S Hinotsu
- Japan Wilms Tumor Study Group (JWiTS), Itabashi-Ku, Tokyo 173-8610, Japan
| | - T Koshinaga
- Japan Wilms Tumor Study Group (JWiTS), Itabashi-Ku, Tokyo 173-8610, Japan
| | - A Yoneda
- Japan Wilms Tumor Study Group (JWiTS), Itabashi-Ku, Tokyo 173-8610, Japan
| | - Y Ohtsuka
- Japan Wilms Tumor Study Group (JWiTS), Itabashi-Ku, Tokyo 173-8610, Japan
| | - T Taguchi
- Japan Wilms Tumor Study Group (JWiTS), Itabashi-Ku, Tokyo 173-8610, Japan
| | - M Fukuzawa
- Japan Wilms Tumor Study Group (JWiTS), Itabashi-Ku, Tokyo 173-8610, Japan
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20
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Inoue A, Ohnishi T, Kohno S, Nishida N, Nakamura Y, Ohtsuka Y, Matsumoto S, Ohue S. Usefulness of an Image Fusion Model Using Three-Dimensional CT and MRI with Indocyanine Green Fluorescence Endoscopy as a Multimodal Assistant System in Endoscopic Transsphenoidal Surgery. Int J Endocrinol 2015; 2015:694273. [PMID: 26339240 PMCID: PMC4539066 DOI: 10.1155/2015/694273] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Accepted: 07/15/2015] [Indexed: 11/25/2022] Open
Abstract
Purpose. We investigate the usefulness of multimodal assistant systems using a fusion model of preoperative three-dimensional (3D) computed tomography (CT) and magnetic resonance imaging (MRI) along with endoscopy with indocyanine green (ICG) fluorescence in establishing endoscopic endonasal transsphenoidal surgery (ETSS) as a more effective treatment procedure. Methods. Thirty-five consecutive patients undergoing ETSS in our hospital between April 2014 and March 2015 were enrolled in the study. In all patients, fusion models of 3D-CT and MRI were created by reconstructing preoperative images. In addition, in 10 patients, 12.5 mg of ICG was intravenously administered, allowing visualization of surrounding structures. We evaluated the accuracy and utility of these combined modalities in ETSS. Results. The fusion model of 3D-CT and MRI clearly demonstrated the complicated structures in the sphenoidal sinus and the position of the internal carotid arteries (ICAs), even with extensive tumor infiltration. ICG endoscopy enabled us to visualize the surrounding structures by the phasic appearance of fluorescent signals emitted at specific consecutive elapsed times. Conclusions. Preoperative 3D-CT and MRI fusion models with intraoperative ICG endoscopy allowed distinct visualization of vital structures in cases where tumors had extensively infiltrated the sphenoidal sinus. Additionally, the ICG endoscope was a useful real-time monitoring tool for ETSS.
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Affiliation(s)
- Akihiro Inoue
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime 791-0295, Japan
- *Akihiro Inoue:
| | - Takanori Ohnishi
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime 791-0295, Japan
| | - Shohei Kohno
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime 791-0295, Japan
| | - Naoya Nishida
- Department of Otolaryngology, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime 791-0295, Japan
| | - Yawara Nakamura
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime 791-0295, Japan
| | - Yoshihiro Ohtsuka
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime 791-0295, Japan
| | - Shirabe Matsumoto
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime 791-0295, Japan
| | - Shiro Ohue
- Department of Neurosurgery, Ehime University School of Medicine, 454 Shitsukawa, Toon, Ehime 791-0295, Japan
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21
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Ohtsuka Y, Higashimoto K, Sasaki K, Jozaki K, Yoshinaga H, Okamoto N, Takama Y, Kubota A, Nakayama M, Yatsuki H, Nishioka K, Joh K, Mukai T, Yoshiura KI, Soejima H. Autosomal recessive cystinuria caused by genome-wide paternal uniparental isodisomy in a patient with Beckwith-Wiedemann syndrome. Clin Genet 2014; 88:261-6. [PMID: 25171146 DOI: 10.1111/cge.12496] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Revised: 08/25/2014] [Accepted: 08/27/2014] [Indexed: 01/08/2023]
Abstract
Approximately 20% of Beckwith-Wiedemann syndrome (BWS) cases are caused by mosaic paternal uniparental disomy of chromosome 11 (pUPD11). Although pUPD11 is usually limited to the short arm of chromosome 11, a small minority of BWS cases show genome-wide mosaic pUPD (GWpUPD). These patients show variable clinical features depending on mosaic ratio, imprinting status of other chromosomes, and paternally inherited recessive mutations. To date, there have been no reports of a mosaic GWpUPD patient with an autosomal recessive disease caused by a paternally inherited recessive mutation. Here, we describe a patient concurrently showing the clinical features of BWS and autosomal recessive cystinuria. Genetic analyses revealed that the patient has mosaic GWpUPD and an inherited paternal homozygous mutation in SLC7A9. This is the first report indicating that a paternally inherited recessive mutation can cause an autosomal recessive disease in cases of GWpUPD mosaicism. Investigation into recessive mutations and the dysregulation of imprinting domains is critical in understanding precise clinical conditions of patients with mosaic GWpUPD.
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Affiliation(s)
- Y Ohtsuka
- Division of Molecular Genetics and Epigenetics, Department of Biomolecular Sciences, Faculty of Medicine, Saga University, Saga, Japan
| | - K Higashimoto
- Division of Molecular Genetics and Epigenetics, Department of Biomolecular Sciences, Faculty of Medicine, Saga University, Saga, Japan
| | - K Sasaki
- Department of Human Genetics, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - K Jozaki
- Division of Molecular Genetics and Epigenetics, Department of Biomolecular Sciences, Faculty of Medicine, Saga University, Saga, Japan
| | - H Yoshinaga
- Division of Molecular Genetics and Epigenetics, Department of Biomolecular Sciences, Faculty of Medicine, Saga University, Saga, Japan
| | - N Okamoto
- Department of Medical Genetics, Osaka Medical Center and Research Institute for Maternal and Child Health, Osaka, Japan
| | - Y Takama
- Department of Pediatric Surgery, Osaka Medical Center and Research Institute for Maternal and Child Health, Osaka, Japan
| | - A Kubota
- Department of Pediatric Surgery, Osaka Medical Center and Research Institute for Maternal and Child Health, Osaka, Japan
| | - M Nakayama
- Department of Pathology, Osaka Medical Center and Research Institute for Maternal and Child Health, Osaka, Japan
| | - H Yatsuki
- Division of Molecular Genetics and Epigenetics, Department of Biomolecular Sciences, Faculty of Medicine, Saga University, Saga, Japan
| | - K Nishioka
- Division of Molecular Genetics and Epigenetics, Department of Biomolecular Sciences, Faculty of Medicine, Saga University, Saga, Japan
| | - K Joh
- Division of Molecular Genetics and Epigenetics, Department of Biomolecular Sciences, Faculty of Medicine, Saga University, Saga, Japan
| | - T Mukai
- Nishikyushu University, Saga, Japan
| | - K-i Yoshiura
- Department of Human Genetics, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - H Soejima
- Division of Molecular Genetics and Epigenetics, Department of Biomolecular Sciences, Faculty of Medicine, Saga University, Saga, Japan
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22
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Hashimoto Y, Khorsand AR, Savoini M, Koene B, Bossini D, Tsukamoto A, Itoh A, Ohtsuka Y, Aoshima K, Kimel AV, Kirilyuk A, Rasing T. Ultrafast time-resolved magneto-optical imaging of all-optical switching in GdFeCo with femtosecond time-resolution and a μm spatial-resolution. Rev Sci Instrum 2014; 85:063702. [PMID: 24985822 DOI: 10.1063/1.4880015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We developed an ultrafast time-resolved magneto-optical (MO) imaging system with several millidegree resolution of light polarization angle, 100 fs time-resolution, and a micrometer spatial resolution. A CCD camera with about 10(6) pixels is used for detection and MO images with an absolute angle of the light polarization are acquired by the rotating analyzer method. By optimizing the analysis procedure with a least square method and the help of graphical processor units, this novel system significantly improves the speed for MO imaging, allowing to obtain a MO map of a sample within 15 s. To demonstrate the strength of the technique, we applied the method in a pump-and-probe experiment of all-optical switching in a GdFeCo sample in which we were able to detect temporal evolution of the MO images with sub-picosecond resolution.
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Affiliation(s)
- Y Hashimoto
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - A R Khorsand
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - M Savoini
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - B Koene
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - D Bossini
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - A Tsukamoto
- College of Science and Technology, Nihon University, 7-24-1 Funabashi, Chiba, Japan
| | - A Itoh
- College of Science and Technology, Nihon University, 7-24-1 Funabashi, Chiba, Japan
| | - Y Ohtsuka
- Science and Technology Research Laboratories, Japan Broadcasting Corporation, 1-10-11 Kinuta, Setagaya-ku, Tokyo 157-8510, Japan
| | - K Aoshima
- Science and Technology Research Laboratories, Japan Broadcasting Corporation, 1-10-11 Kinuta, Setagaya-ku, Tokyo 157-8510, Japan
| | - A V Kimel
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - A Kirilyuk
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - Th Rasing
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
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23
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Higashimoto K, Jozaki K, Kosho T, Matsubara K, Fuke T, Yamada D, Yatsuki H, Maeda T, Ohtsuka Y, Nishioka K, Joh K, Koseki H, Ogata T, Soejima H. A novel de novo point mutation of the OCT-binding site in the IGF2/H19-imprinting control region in a Beckwith-Wiedemann syndrome patient. Clin Genet 2013; 86:539-44. [PMID: 24299031 DOI: 10.1111/cge.12318] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Revised: 10/21/2013] [Accepted: 11/06/2013] [Indexed: 11/29/2022]
Abstract
The IGF2/H19-imprinting control region (ICR1) functions as an insulator to methylation-sensitive binding of CTCF protein, and regulates imprinted expression of IGF2 and H19 in a parental origin-specific manner. ICR1 methylation defects cause abnormal expression of imprinted genes, leading to Beckwith-Wiedemann syndrome (BWS) or Silver-Russell syndrome (SRS). Not only ICR1 microdeletions involving the CTCF-binding site, but also point mutations and a small deletion of the OCT-binding site have been shown to trigger methylation defects in BWS. Here, mutational analysis of ICR1 in 11 BWS and 12 SRS patients with ICR1 methylation defects revealed a novel de novo point mutation of the OCT-binding site on the maternal allele in one BWS patient. In BWS, all reported mutations and the small deletion of the OCT-binding site, including our case, have occurred within repeat A2. These findings indicate that the OCT-binding site is important for maintaining an unmethylated status of maternal ICR1 in early embryogenesis.
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Affiliation(s)
- K Higashimoto
- Division of Molecular Genetics & Epigenetics, Department of Biomolecular Sciences, Faculty of Medicine, Saga University, Saga, Japan
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24
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Hamaji Y, Wada T, Lee HT, Ohtsuka Y, Ueda Y, Kreter A, Philipps V, Yamauchi Y, Ashikawa N. Structure of C Deposition Layers under Various Deposition Conditions. Fusion Science and Technology 2013. [DOI: 10.13182/fst13-a16958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Y. Hamaji
- Graduate school of engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - T. Wada
- Graduate school of engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - H. T. Lee
- Graduate school of engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Y. Ohtsuka
- Graduate school of engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Y. Ueda
- Graduate school of engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - A. Kreter
- IFE:4 Plasmaphysik, Forschungszentrum Jülich, Association EURATOM-FZJ, Germany
| | - V. Philipps
- IFE:4 Plasmaphysik, Forschungszentrum Jülich, Association EURATOM-FZJ, Germany
| | - Y. Yamauchi
- Laboratory of Plasma Physics and Engineering, Hokkaido University, Sapporo, Hokkaido, 060-8628, Japan
| | - N. Ashikawa
- National Institute for Fusion Science, Toki, Gifu, 509-5292, Japan
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Abstract
In our sequential EEG study performed on 68 infants with various pre- and perinatal brain insults, we found peculiar abnormal fast activity (AFAs) in 12 patients. 9 of the 12 patients with AFAs later developed West syndrome (WS) compared with only 3 of the 56 patients without AFAs (p<0.001, χ(2) test). We analyzed these AFAs using EEG topography, and compared them with ictal fast activity (IFA) corresponding to tonic spasms observed later in the same patients after they had developed WS. We also investigated the clinical and EEG features in these patients. AFAs were first observed commonly at 4-5 months of CA, before the onset of WS. AFA topographic maps revealed posterior predominance in 11 of the 12 patients; IFA maps also showed posterior predominance but were more widely distributed. We propose that, though AFAs and IFAs are different, they share certain aspects of their pathophysiology, and that the maturational process of the occipital cortex plays an important role in the shared aspects. Since AFAs are observed before the onset of WS, they can be considered a sign that WS is imminent.
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Affiliation(s)
- F Endoh
- Department of Child Neurology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
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27
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Ohtsuka Y. [Compassionate use of vigabatrin for intractable epilepsy in Japan]. No To Hattatsu 2011; 43:61-64. [PMID: 21400936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
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28
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Ohtsuka Y. Modification of Fresnel Diffraction by a Straight Edge Object with Acoustically Coherence-controllable Illumination. ACTA ACUST UNITED AC 2010. [DOI: 10.1080/713821209] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Yoshihiro Ohtsuka
- a Department of Engineering Science, Faculty of Engineering, Hokkaido University, Sapporo 060, Hokkaido, Japan
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30
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lmai Y, Watanabe Y, Watanabe K, Ohtsuka Y. [An infant with bromoderma tuberosum]. No To Hattatsu 2009; 41:462-464. [PMID: 19928547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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Fujinaga S, Ohtomo Y, Hirano D, Nishizaki N, Someya T, Ohtsuka Y, Kaneko K, Shimizu T. Mycophenolate mofetil therapy for childhood-onset steroid dependent nephrotic syndrome after long-term cyclosporine: extended experience in a single center. Clin Nephrol 2009; 72:268-273. [PMID: 19825332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023] Open
Abstract
BACKGROUND Mycophenolate mofetil (MMF) is being used increasingly in children with steroid-dependent nephrotic syndrome (SDNS). However, there is limited information on the optimal therapeutic range for mycophenolic acid (MPA), the active metabolite of MMF, in these patients. METHODS 26 patients with SDNS (mean age 13.1 years, 19 with minimal change disease and 7 with focal segmental glomerulosclerosis) who had received MMF for at least 6 months after longterm cyclosporine (CsA, mean 56 months) at Saitama Children's Medical Center between September 2002 and August 2008 were analyzed. MMF was introduced at an initial dose of 250 mg/12 h, adjusted to maintain target predose MPA at greater than 2 microg/ml (maximum 1 g twice daily) gradually over 4 weeks. After the introduction of MMF, the dosages of both CsA and prednisolone (PSL) were tapered off if possible. RESULTS The mean MMF dose required was 34 +/- 6 mg/kg, which maintained the mean predose MPA levels of 3.1 mg/ml. In 26 patients, treatment with MMF for a mean follow-up period of 19 months (range 7 - 42), resulted in a reduction of the mean PSL dose from 0.33 +/- 0.23 to 0.17 +/- 0.11 mg/kg per day (p < 0.01) and mean CsA dose from 3.2 +/- 1.7 to 1.3 +/- 1.8 mg/kg per day (p < 0.01). The mean 12-monthly relapse rates decreased from 2.5 +/- 1.4 to 0.8 +/- 1.2 episodes (p < 0.01). In 20 patients treated with MMF (77%), the dose of PSL and/or CsA was successfully tapered with a reduction in the relapse rates. In 6 patients, however, CsA therapy was reintroduced or its dose was increased because of treatment failure. The patients whose average predose MPA levels were less than 3 microg/ml were significantly likely to have treatment failure (p < 0.05). 2 patients reduced the MMF dosage because of anemia or herpes labialis. However, no severe gastrointestinal discomfort was seen in any patients. Despite long-term CsA therapy, marked tubulointerstitial fibrosis developed during MMF therapy in surveillance biopsies of only one of these five patients. CONCLUSIONS Therapy with MMF based on the predose MPA levels can be a less toxic alternative to CsA or in some cases a useful additional medication to allow for a reduction in the CsA and/or PSL dosage.
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Affiliation(s)
- S Fujinaga
- Division of Nephrology Saitama Children's Medical Center, Saitama City, Japan.
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Ueshima S, Aiba T, Ishikawa N, Sato T, Kawasaki H, Kurosaki Y, Ohtsuka Y, Sendo T. Poor applicability of estimation method for adults to calculate unbound serum concentrations of valproic acid in epileptic neonates and infants. J Clin Pharm Ther 2009; 34:415-22. [DOI: 10.1111/j.1365-2710.2009.01022.x] [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: 11/30/2022]
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Yamawaki A, Fukumoto M, Soga Y, Ohtsuka Y, Ueda Y, Ohya K. Temperature Dependence of Carbon Deposition on Tungsten. Fusion Science and Technology 2009. [DOI: 10.13182/fst09-a9048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- A. Yamawaki
- Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - M. Fukumoto
- Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Y. Soga
- Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Y. Ohtsuka
- Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Y. Ueda
- Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - K. Ohya
- Institute of Technology and Science, The University of Tokushima, Tokushima 770-8506, Japan
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Ueshima S, Aiba T, Makita T, Nishihara S, Kitamura Y, Kurosaki Y, Kawasaki H, Sendo T, Ohtsuka Y, Gomita Y. Characterization of non-linear relationship between total and unbound serum concentrations of valproic acid in epileptic children. J Clin Pharm Ther 2008; 33:31-8. [PMID: 18211614 DOI: 10.1111/j.1365-2710.2008.00885.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To establish a regression equation to properly estimate the unbound serum concentration of valproic acid (VPA) from its total serum concentration; the relationship between total and unbound serum VPA concentrations was retrospectively characterized. METHODS Data were obtained from the clinical examination records that were routinely archived during therapeutic drug monitoring. The screening encompassed 342 records of 108 paediatric patients whose total and unbound VPA concentrations had been determined. The relationship between total and unbound VPA concentrations was characterized according to the Langmuir equation by taking account of inter-individual variability with the nonmem program. RESULTS The total VPA concentration (C(t)) in the screened patients ranged from 5.5 to 179.8 microg/mL, and the unbound VPA concentration (C(f)) increased in a non-linear manner as the total VPA concentration increased. Taking account of the effects of antiepileptics concurrently administered, the VPA dissociation constant (K(d)) and maximum binding site concentration (B(m)) were 7.8 +/- 0.7 and 130 +/- 4.5 microg/mL respectively, for the regression equation, C(t) = C(f) + B(m) x C(f)/(K(d) + C(f)). An alteration in the unbound concentration was seen in patients who were treated with the combination of VPA and ethosuximide and in those who received two additional antiepileptics. CONCLUSIONS A regression equation for estimation of the unbound VPA concentration, based on total VPA concentration collected during routine therapeutic drug monitoring was established. Use of two additional antiepileptics and ethosuximide treatment was considered as potential factors affecting unbound VPA concentration.
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Affiliation(s)
- S Ueshima
- Department of Hospital Pharmacy, Okayama University Hospital, Okayama, Japan
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Kobayashi K, Oka M, Akiyama T, Inoue T, Abiru K, Ogino T, Yoshinaga H, Ohtsuka Y, Oka E. Rhythmic 60–100Hz activity on scalp EEG associated with epileptic spasms. Clin Neurophysiol 2007. [DOI: 10.1016/j.clinph.2007.06.024] [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: 10/22/2022]
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36
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Kobayashi K, Inoue T, Kikumoto K, Endoh F, Miya K, Oka M, Yoshinaga H, Ohtsuka Y. Relation of spasms and myoclonus to suppression-burst on EEG in epileptic encephalopathy in early infancy. Neuropediatrics 2007; 38:244-50. [PMID: 18330839 DOI: 10.1055/s-2008-1062716] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
PURPOSE This study was intended to clarify the relation between spasms in series and a suppression-burst (SB) EEG pattern which have a common nature of repetitive bursting activity in epileptic encephalopathy in early infancy. METHODS The ictal EEG traces of spasms were temporally compressed and expanded to study the beginning and ending phases of series along with their spectral analysis in two patients with Ohtahara syndrome (OS) and one with early myoclonic encephalopathy (EME). The EEG bursts associated with myoclonus were also investigated. RESULTS A mutual transition was indicated between the ictal activity of spasms and the bursts in the peri-series SB on EEG. Gamma rhythm was detected in common in the ictal activity and the peri-series and interictal bursts on EEG, and also in the bursts with myoclonus. CONCLUSION The relation between the ictal activity of spasms and SB on EEG was shown to be close. The generative mechanisms of spasms and myoclonus might be linked to the bursting tendency intrinsic to immature brain function.
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Affiliation(s)
- K Kobayashi
- Department of Child Neurology, Okayama University Hospital, Okayama, Japan.
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Yoshinaga H, Kobayashi K, Ogino T, Ito M, Nakahori T, Ohtsuka Y. EEG dipole in Panayiotopoulos syndrome. Clin Neurophysiol 2007. [DOI: 10.1016/j.clinph.2007.05.025] [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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Okuyama H, Ohtsuka Y, Aruga T. Secondary oxidation product on Si(111)-(7 x 7) characterized by isotope-labeled vibrational spectroscopy. J Chem Phys 2007; 122:234709. [PMID: 16008475 DOI: 10.1063/1.1937394] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The reaction of O(2) with Si(111)-(7 x 7) has been studied by electron energy-loss spectroscopy at 82 K. In addition to the losses due to Si-O-Si configurations, we observed two Si-O stretch modes depending on the coverage. A 146-meV peak appears at the initial reaction stage and was ascribed to a metastable product with one oxygen atom bonding on top of Si adatom and the other inserted into the backbond. The initial product is further oxidized to produce the second Si-O stretch peak at 150 meV. The secondary product was partially substituted with isotopes and analyzed with a simple model of coupled oscillators. The vibrational spectra reflect dynamical couplings between the isotopes, which is consistent with those predicted from the tetrahedral SiO(4) structure with one on top and three inserted oxygen atoms.
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Affiliation(s)
- H Okuyama
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan.
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Inukai T, Hirose K, Inaba T, Kurosawa H, Hama A, Inada H, Chin M, Nagatoshi Y, Ohtsuka Y, Oda M, Goto H, Endo M, Morimoto A, Imaizumi M, Kawamura N, Miyajima Y, Ohtake M, Miyaji R, Saito M, Tawa A, Yanai F, Goi K, Nakazawa S, Sugita K. Hypercalcemia in childhood acute lymphoblastic leukemia: frequent implication of parathyroid hormone-related peptide and E2A-HLF from translocation 17;19. Leukemia 2006; 21:288-96. [PMID: 17183364 DOI: 10.1038/sj.leu.2404496] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Hypercalcemia is relatively rare but clinically important complication in childhood leukemic patients. To clarify the clinical characteristics, mechanisms of hypercalcemia, response to management for hypercalcemia, incidence of t(17;19) and final outcome of childhood acute lymphoblastic leukemia (ALL) accompanied by hypercalcemia, clinical data of 22 cases of childhood ALL accompanied by hypercalcemia (>12 mg/dl) reported in Japan from 1990 to 2005 were retrospectively analyzed. Eleven patients were 10 years and older. Twenty patients had low white blood cell count (<20 x 10(9)/l), 15 showed hemoglobin> or =8 g/dl and 14 showed platelet count > or =100 x 10(9)/l. Parathyroid hormone-related peptide (PTHrP)-mediated hypercalcemia was confirmed in 11 of the 16 patients in whom elevated-serum level or positive immunohistochemistry of PTHrP was observed. Hypercalcemia and accompanying renal insufficiency resolved quickly, particularly in patients treated with bisphosphonate. t(17;19) or add(19)(p13) was detected in five patients among 17 patients in whom karyotypic data were available, and the presence of E2A-HLF was confirmed in these five patients. All five patients with t(17;19)-ALL relapsed very early. Excluding the t(17;19)-ALL patients, the final outcome of ALL accompanied by hypercalcemia was similar to that of all childhood ALL patients, indicating that the development of hypercalcemia itself is not a poor prognostic factor.
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Affiliation(s)
- T Inukai
- Department of Pediatrics, University of Yamanashi, School of Medicine, Yamanashi, Japan.
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Sakaue S, Ishimaru S, Hizawa N, Ohtsuka Y, Tsujino I, Honda T, Suzuki J, Kawakami Y, Nishihira J, Nishimura M. Promoter polymorphism in the macrophage migration inhibitory factor gene is associated with obesity. Int J Obes (Lond) 2006; 30:238-42. [PMID: 16247506 DOI: 10.1038/sj.ijo.0803148] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [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: 12/14/2022]
Abstract
OBJECTIVE To explore the association of promoter polymorphisms of macrophage migration inhibitory factor (MIF) gene with obesity. SUBJECTS In total, 213 nondiabetic Japanese subjects. They were divided into three groups according to World Health Organization definitions: lean (body mass index (BMI) <25 kg/m2), overweight (25 < or = BMI < 30 kg/m2) and obese (BMI> or = 30 kg/m2). METHODS We examined two polymorphic loci in the MIF gene in the subjects: a single-nucleotide polymorphism at position -173 (G/C) and a CATT-tetranucleotide repeat polymorphism at position -794, which both can affect promoter activity in different cells. RESULTS We detected four alleles: 5-, 6-, 7- and 8-CATT at position -794. Genotypes without the 5-CATT allele (X/X, X refers to 6-, 7- or 8-CATT alleles) were more common in obese subjects than in lean or overweight groups (P = 0.013). The X-CATT allele was more frequent in obese subjects than in lean or overweight subjects (P = 0.030). In contrast, -173G/C was not associated with obesity. Among the haplotypes of the two promoter polymorphisms, G/5-CATT ((-173G/C)/(-794[CATT](5-8))) was associated with a decreased risk of obesity (P = 0.025) and G/6-CATT with an increased risk of overweight (P=0.028). CONCLUSION Promoter polymorphism in the MIF gene is linked with obesity.
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Affiliation(s)
- S Sakaue
- First Department of Medicine, Hokkaido University School of Medicine, Sapporo, Japan.
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Abstract
Inter-individual variations in the development of silicosis, even within the same environments, have been reported, which suggest the contribution of genetic factors in silicosis aetiology. The aim of the present study was to determine whether there is any significant genetic influence on the development of silicosis. Furthermore, which genetic loci are responsible for the pulmonary response to silica exposure? Eight strains of inbred mice were used to examine the genetic influence on the lung fibrotic response to silica exposure. After intercross-breeding between the most susceptible and most resistant strains, a genome-wide linkage analysis of quantitative trait loci (QTL) was performed. Hydroxyproline was applied as an index, and genotypes of 167 marker genes were analysed by fragment analysis using a capillary-type sequencer. There was significant inter-strain difference in the mean concentration of hydroxyproline contents among the eight strains of mice. Breeding studies were conducted between the most susceptible, C57BL/6J, and the most resistant strain, CBA/J. A genome-wide linkage analysis of silica-exposed intercrossed cohorts identified significant QTL on chromosome 4 and suggestive QTL on chromosomes 3 and 18. The present study demonstrates that genetic factors may play a significant role in fibrotic-lung responses to silica; one significant and two suggestive quantitative trait loci were identified.
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Affiliation(s)
- Y Ohtsuka
- Dept of Internal Medicine, Iwamizawa Rosai Hospital, 4-jyo, Higashi 16-chome 5, Iwamizawa, Hokkaido 068-0004, Japan.
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Kobayashi K, Hata H, Oka M, Ito M, Yoshinaga H, Kashihara K, Ohtsuka Y. Age-related electrical status epilepticus during sleep and epileptic negative myoclonus in DRPLA. Neurology 2006; 66:772-3. [PMID: 16534126 DOI: 10.1212/01.wnl.0000200958.30060.36] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- K Kobayashi
- Department of Child Neurology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
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Manabe A, Ohtsuka Y, Yabe M, Ogawa C, Okamura J, Kojima S, Nakahata T. Hematopoietic stem cell transplantation (HSCT) for juvenile myelomonocytic leukemia (JMML). Leuk Res 2006. [DOI: 10.1016/s0145-2126(06)80021-4] [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: 11/28/2022]
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Ohtsuka Y, Higashi M, Nishikawa M. Fundamental experiment for inspection of cooling pipes in operation by using ultrasonic technique. Fusion Engineering and Design 2006. [DOI: 10.1016/j.fusengdes.2005.09.044] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Yoshikawa M, Sugawara A, Ishlda T, Moriya H, Yamazaki K, Asano F, Inoue K, Saito J, Ohtsuka Y, Munakata M. O-031 Bronchoscopy with real-time virtual navigation under fluoroscopy is useful for diagnosis of small peripheral pulmonary lesions. Lung Cancer 2005. [DOI: 10.1016/s0169-5002(05)80163-1] [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: 11/29/2022]
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Zhang B, Ohtsuka Y, Fujii T, Baba H, Okada K, Shoji H, Nagata S, Shimizu T, Yamashiro Y. Immunological development of preterm infants in early infancy. Clin Exp Immunol 2005; 140:92-6. [PMID: 15762879 PMCID: PMC1809341 DOI: 10.1111/j.1365-2249.2005.02741.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
To evaluate the immunological development of preterm infants, especially in early infancy, we examined the serum cytokine levels and the expression of Th2 and Th1 chemokine receptors, CCR4 and CCR5, on days 0, 14 and 28 in 16 low birth weight infants (1720.38 +/- 502.80 g) born at less than 37 (33.63 +/- 3.29) weeks of gestation. Using an enzyme-linked immunosorbent assay (ELISA), serum interleukin (IL)-4 levels exhibited an increase on day 14, but decreased to the initial level on day 28 (P < 0.05). The significant elevation of serum transforming growth factor (TGF)-beta levels was confirmed on day 14 (P < 0.05) but decreased to the initial level on day 28 (P < 0.05). The expression of CCR4 and CCR5 were examined using reverse transcription-polymerase chain reaction (RT-PCR) and flow cytometric analysis. The RT-PCR confirmed the expression of CCR5-mRNA soon after birth, while there was no expression of CCR4-mRNA. Thereafter, the expression of CCR4-mRNA increased significantly and reached the level of CCR5-mRNA expression on day 28 (P < 0.05). Flow cytometric analysis, however, revealed that the expression levels of both CCR4 and CCR5 were low at birth. Thus, CCR4(+) CD4(+) cells were significantly increased from days 0-28 (P < 0.05), while CCR5(+) CD4(+) cells were not. Increased IL-4 and TGF-beta synthesis as well as increased CCR4(+) CD4(+) cells suggest that, under extra-maternal circumstances, there is a shift in bias toward Th2 responses even in preterm infants soon after delivery, while they may be capable of developing Th1 mediated responses soon after birth.
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MESH Headings
- Actins/analysis
- Biomarkers/analysis
- Chemokines, CC/immunology
- Cytokines/blood
- Female
- Humans
- Infant, Low Birth Weight/immunology
- Infant, Newborn
- Infant, Premature/immunology
- Male
- RNA, Messenger/analysis
- Receptors, CCR4
- Receptors, CCR5/analysis
- Receptors, CCR8
- Receptors, CXCR3
- Receptors, Chemokine/analysis
- Reverse Transcriptase Polymerase Chain Reaction/methods
- Th1 Cells/immunology
- Th2 Cells/immunology
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Affiliation(s)
- B Zhang
- Department of Pediatrics, Juntendo University School of Medicine, Tokyo, Japan
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Ueda S, Ohtsuka Y, Kondo K, Inaba J. Sedimentation rate in brackish Lake Obuchi, Rokkasho Village, Japan, bordered by nuclear fuel cycle facilities. J Radioanal Nucl Chem 2005. [DOI: 10.1007/s10967-005-0719-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Affiliation(s)
- T Ogino
- Department of Child Neurology, Okayama University Graduate School of Medicine and Dentistry, Shikata-cho 2-5-1, Okayama 700-8558, Japan.
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Hasegawa D, Manabe A, Kubota T, Kawasaki H, Ohtsuka Y, Isomura M, Kojima S, Tsuji K, Nakahata T. P-88 Methylation status of the P15 and P16 genes in pediatric myelodysplastic syndrome and juvenile myelomonocytic leukemia. Leuk Res 2005. [DOI: 10.1016/s0145-2126(05)80152-3] [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: 10/25/2022]
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Ohtsuka Y, Manabe A, Okamura J, Kojima S, Ohara A, Tsuchida M, Ikuta K, Hibi S, Kawa K, Yabe M, Watanabe A, eda K, Nakazawa S, Miyazaki S, Nakahata T. P-95 Acute myeloid leukemia (AML)-type chemotherapy for newly diagnosed children with myelodysplastic syndrome (MDS): A Japanese childhood MDS study group trial MDS99. Leuk Res 2005. [DOI: 10.1016/s0145-2126(05)80159-6] [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: 11/16/2022]
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