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Penrod RD, Taniguchi M, Kearns AM, Hopkins JL, Reichel CM. Differential Roles of Oxytocin Receptors in the Prefrontal Cortex and Nucleus Accumbens on Cocaine Self-Administration and Reinstatement of Cued Cocaine Seeking in Male Rats. Int J Neuropsychopharmacol 2023; 26:817-827. [PMID: 37875346 PMCID: PMC10726405 DOI: 10.1093/ijnp/pyad059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 10/23/2023] [Indexed: 10/26/2023] Open
Abstract
BACKGROUND Little is known about the specific roles of cortical and accumbal oxytocin receptors in drug use disorders. To better understand the importance of the endogenous oxytocin system in cocaine relapse behavior, we developed an adeno-associated viral vector-expressing short hairpin (sh) RNAs to selectively degrade the rat oxytocin receptor (OxyR) mRNA in vivo. METHODS Male (Sprague-Dawley) rats received bilateral infusions of the shRNA for the oxytocin receptor (shOxyR) or an shRNA control virus into the prefrontal cortex (PFC) or the nucleus accumbens core (NAc). Rats self-administered cocaine on an escalating FR ratio for 14 days, lever responding was extinguished, and rats were tested for cued and cocaine-primed reinstatement of drug seeking. RESULTS OxyR knockdown in the PFC delayed the acquisition of lever pressing on an fixed ratio 1 schedule of reinforcement. All rats eventually acquired the same level of lever pressing and discrimination, and there were no differences in extinction. OxyR knockdown in the NAc had no effect during acquisition. In both the PFC and NAc, the shOxyR decreased cued reinstatement relative to shRNA control virus but was without effect during drug-primed reinstatement. OxyR knockdown in the PFC increased chamber activity during a social interaction task. CONCLUSIONS This study provides critical new information about how endogenous OxyRs function to affect drug seeking in response to different precipitators of relapse. The tool developed to knockdown OxyRs in rat could provide important new insights that aid development of oxytocin-based therapeutics to reduce return-to-use episodes in people with substance use disorder and other neuropsychiatric disorders.
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Affiliation(s)
- Rachel D Penrod
- Department of Neuroscience, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Makoto Taniguchi
- Department of Neuroscience, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Angela M Kearns
- Department of Neuroscience, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Jordan L Hopkins
- Department of Neuroscience, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Carmela M Reichel
- Department of Neuroscience, Medical University of South Carolina, Charleston, South Carolina, USA
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Chowdhury G, Kitahara K, Taniguchi M, Uesaka K, Muzembo BA, Mitra D, Ohno A, Ramamurthy T, Dutta S, Miyoshi SI, Mukhopadhyay AK. Complete genomic sequence of Vibrio fluvialis strain IDH5335 isolated from a patient with diarrhea in Kolkata, India. Microbiol Resour Announc 2023; 12:e0070723. [PMID: 37943041 PMCID: PMC10871063 DOI: 10.1128/mra.00707-23] [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: 08/06/2023] [Accepted: 10/03/2023] [Indexed: 11/10/2023] Open
Abstract
We isolated a Vibrio fluvialis strain (IDH5335) from a stool sample collected from a patient with diarrhea. In this announcement, we report the complete genomic sequence of this organism, which was obtained by combining Illumina and Oxford Nanopore sequencing data.
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Affiliation(s)
- Goutam Chowdhury
- ICMR-National Institute of Cholera and Enteric Diseases, Kolkata, West Bengal, India
- Collaborative Research Center of Okayama University for Infectious Diseases in India at ICMR-NICED, Kolkata, West Bengal, India
| | - Kei Kitahara
- Collaborative Research Center of Okayama University for Infectious Diseases in India at ICMR-NICED, Kolkata, West Bengal, India
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Makoto Taniguchi
- Oral Microbiome Center, Taniguchi Dental Clinic, Takamatsu, Kagawa, Japan
| | - Kazuma Uesaka
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi, Japan
| | - Basilua Andre Muzembo
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Debmalya Mitra
- Collaborative Research Center of Okayama University for Infectious Diseases in India at ICMR-NICED, Kolkata, West Bengal, India
| | - Ayumu Ohno
- Collaborative Research Center of Okayama University for Infectious Diseases in India at ICMR-NICED, Kolkata, West Bengal, India
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | | | - Shanta Dutta
- ICMR-National Institute of Cholera and Enteric Diseases, Kolkata, West Bengal, India
| | - Shin-ichi Miyoshi
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
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Barber KR, Vizcarra VS, Zilch A, Majuta L, Diezel CC, Culver OP, Hughes BW, Taniguchi M, Streicher JM, Vanderah TW, Riegel AC. The Role of Ryanodine Receptor 2 in Drug-Associated Learning. bioRxiv 2023:2023.10.03.560743. [PMID: 37873212 PMCID: PMC10592901 DOI: 10.1101/2023.10.03.560743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
Type-2 ryanodine receptor (RyR2) ion channels facilitate the release of Ca 2+ from stores and serve an important function in neuroplasticity. The role for RyR2 in hippocampal-dependent learning and memory is well established and chronic hyperphosphorylation of RyR2 (RyR2P) is associated with pathological calcium leakage and cognitive disorders, including Alzheimer's disease. By comparison, little is known about the role of RyR2 in the ventral medial prefrontal cortex (vmPFC) circuitry important for working memory, decision making, and reward seeking. Here, we evaluated the basal expression and localization of RyR2 and RyR2P in the vmPFC. Next, we employed an operant model of sucrose, cocaine, or morphine self-administration (SA) followed by a (reward-free) recall test, to reengage vmPFC neurons and reactivate reward-seeking and re-evaluated the expression and localization of RyR2 and RyR2P in vmPFC. Under basal conditions, RyR2 was expressed in pyramidal cells but not regularly detected in PV/SST interneurons. On the contrary, RyR2P was rarely observed in PFC somata and was restricted to a different subcompartment of the same neuron - the apical dendrites of layer-5 pyramidal cells. Chronic SA of drug (cocaine or morphine) and nondrug (sucrose) rewards produced comparable increases in RyR2 protein expression. However, recalling either drug reward impaired the usual localization of RyR2P in dendrites and markedly increased its expression in somata immunoreactive for Fos, a marker of highly activated neurons. These effects could not be explained by chronic stress or drug withdrawal and instead appeared to require a recall experience associated with prior drug SA. In addition to showing the differential distribution of RyR2/RyR2P and affirming the general role of vmPFC in reward learning, this study provides information on the propensity of addictive drugs to redistribute RyR2P ion channels in a neuronal population engaged in drug-seeking. Hence, focusing on the early impact of addictive drugs on RyR2 function may serve as a promising approach to finding a treatment for substance use disorders.
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Asahina H, Ogasawara T, Akieda T, Miyahara K, Okada Y, Matsumura K, Taniguchi M, Yoshida A, Kakinoki Y. Palatal microbiota associated with membranous substances in older Japanese individuals undergoing tube feeding in long-term care: A cross-sectional study. Heliyon 2023; 9:e20401. [PMID: 37780754 PMCID: PMC10539663 DOI: 10.1016/j.heliyon.2023.e20401] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 09/14/2023] [Accepted: 09/22/2023] [Indexed: 10/03/2023] Open
Abstract
Objective Tube feeders are prone to membranous substance formation on the palate, and those with membranous substances have a risk of fever, with the probable involvement of their oral bacteria. However, the palatal microbiota of those with membranous substances has not been elucidated. Therefore, we evaluated the differences in palatal microbiota between tube-fed individuals with and without membranous substances to clarify the microbiota. Materials and methods This study included 19 participants aged 65 years who required tube feeding. The participants' characteristics were collected from nursing records and oral examinations. If membranous materials were found on the palate, a specimen was collected. Membranous substances were defined as keratotic degeneration observed under a microscope. Additionally, we performed a comprehensive microbiome analysis by extracting DNA from the samples and performing 16 S rRNA gene sequencing. Finally, we compared the participant demographics and oral microbiota between patients with and without membranous substances. Results A total of 11 participants had membranous substances associated with "mouth dryness" (p < 0.001) and "constant mouth opening" (p = 0.020). Palatal microbiota differed between those with and without membranous substances. Among the bacteria with a relative abundance greater than 1.0%, the abundance of Streptococcus (p = 0.007), Fusobacterium (p = 0.041), Streptococcus agalactiae (p = 0.009), and Fusobacterium nucleatum subsp. vincentii (p = 0.026) was significantly higher in the membranous substance group than in the non-membranous substance group. Conclusions The palatal microbiota of individuals undergoing tube feeding differed depending on the presence or absence of membranous substances. Membrane substance formation associated with dry mouth purportedly alters the palatal microbiota. Streptococcus, Fusobacterium, S. agalactiae, and F. nucleatum subsp. vincentii were more abundant in the oral microbiota of patients with membranous substances. Thus, preventing this formation may help in controlling the growth of these microbes.
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Affiliation(s)
- Hironao Asahina
- Department of Oral Health Promotion, Graduate School of Oral Medicine, Matsumoto Dental University, Nagano, 399-0704, Japan
- Department of Special Care Dentistry, Hiroshima University Hospital, Hiroshima, 734-8551, Japan
| | - Tadashi Ogasawara
- Matsumoto Dental University, Nagano, 399-0704, Japan
- Yokosuna Dental Clinic, Shizuoka, 424-0035, Japan
| | | | - Kohta Miyahara
- Department of Special Care Dentistry, Hiroshima University Hospital, Hiroshima, 734-8551, Japan
| | - Yoshiyuki Okada
- Department of Special Care Dentistry, Hiroshima University Hospital, Hiroshima, 734-8551, Japan
| | | | | | - Akihiro Yoshida
- Department of Oral Microbiology, Matsumoto Dental University, Nagano, 399-0704, Japan
| | - Yasuaki Kakinoki
- Department of Special Needs and Geriatric Dentistry, Kyushu Dental University, Fukuoka, 803-8580, Japan
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Kitahara K, Muzembo BA, Morohoshi S, Kunihiro T, Tazato N, Ohno A, Uesaka K, Taniguchi M, Miyoshi SI. Flavobacterium okayamense sp. nov. isolated from surface seawater. Arch Microbiol 2023; 205:346. [PMID: 37773547 PMCID: PMC10542280 DOI: 10.1007/s00203-023-03682-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 09/08/2023] [Accepted: 09/08/2023] [Indexed: 10/01/2023]
Abstract
Strain KK2020170T, a Gram-stain negative, yellow colony-forming bacterium, was isolated from surface seawater sampled in Kojima Bay, Okayama, Japan. Phylogenetic analysis based on the 16S rRNA gene revealed that strain KK2020170T belongs to the genus Flavobacterium, with Flavobacterium haoranii LQY-7T (98.1% similarity) being its closest relative, followed by Flavobacterium sediminis MEBiC07310T (96.9%) and Flavobacterium urocaniciphilum YIT 12746T (96.0%). Whole-genome shotgun sequencing showed that strain KK2020170T, when paralleled with F. haoranii LQY-7 T, had 81.3% average nucleotide identity, and 24.6% in silico DNA-DNA hybridization values, respectively. The DNA G + C content of strain KK2020170T was 31.1 mol%. The most abundant fatty acids (> 10%) of strain KK2020170T were iso-C15: 0, iso-C17: 0 3-OH and iso-C15: 1 G. The dominant respiratory quinone of the strain was menaquinone MK-6. Based on the phylogenetic and phenotypic analysis results, we propose that strain KK2020170T represents a novel species, for which the name Flavobacterium okayamense sp. nov. has been proposed. The type strain is KK2020170T (= ATCC TSD-280 T = NBRC 115344 T).
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Affiliation(s)
- Kei Kitahara
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan.
| | - Basilua Andre Muzembo
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Sho Morohoshi
- TechnoSuruga Laboratory Co., Ltd, Nagasaki, Shizuoka, Japan
| | - Tadao Kunihiro
- TechnoSuruga Laboratory Co., Ltd, Nagasaki, Shizuoka, Japan
| | - Nozomi Tazato
- TechnoSuruga Laboratory Co., Ltd, Nagasaki, Shizuoka, Japan
| | - Ayumu Ohno
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Kazuma Uesaka
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Makoto Taniguchi
- Oral Microbiome Center, Taniguchi Dental Clinic, Takamatsu, Japan
| | - Shin-Ichi Miyoshi
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
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Kato Y, Oi T, Taniguchi M. Aggregative movement of C 4 mesophyll chloroplasts is promoted by low CO 2 under high intensity blue light. Plant Biol (Stuttg) 2023; 25:563-570. [PMID: 36790102 DOI: 10.1111/plb.13512] [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] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 02/07/2023] [Indexed: 05/17/2023]
Abstract
C4 plants supply concentrated CO2 to bundle sheath (BS) cells, improving photosynthetic efficiency by suppressing photorespiration. Mesophyll chloroplasts in C4 plants are redistributed toward the sides of the BS cells (aggregative movement) in response to environmental stresses under light. Although this chloroplast movement is common in C4 plants, the significance and mechanisms underlying the aggregative movement remain unknown. Under environmental stresses, such as drought and salt, CO2 uptake from the atmosphere is suppressed by closing stomata to prevent water loss. We hypothesized that CO2 limitation may induce the chloroplast aggregative movement. In this study, the mesophyll chloroplast arrangement in a leaf of finger millet, an NAD-malic enzyme type C4 plant, was examined under different CO2 concentrations and light conditions. CO2 limitation around the leaves promoted the aggregative movement, but the aggregative movement was not suppressed, even at the higher CO2 concentration than in the atmosphere, under high intensity blue light. In addition, mesophyll chloroplasts did not change their arrangement under darkness or red light. From these results, it can be concluded that CO2 limitation is not a direct inducer of the aggregative movement but would be a promoting factor of the movement under high intensity blue light.
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Affiliation(s)
- Y Kato
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - T Oi
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - M Taniguchi
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
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7
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Chao YS, Parrilla-Carrero J, Eid M, Culver OP, Jackson TB, Lipat R, Taniguchi M, Jhou TC. Innate cocaine-seeking vulnerability arising from loss of serotonin-mediated aversive effects of cocaine in rats. Cell Rep 2023; 42:112404. [PMID: 37083325 DOI: 10.1016/j.celrep.2023.112404] [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: 08/12/2022] [Revised: 01/11/2023] [Accepted: 04/02/2023] [Indexed: 04/22/2023] Open
Abstract
Cocaine blocks dopamine reuptake, thereby producing rewarding effects that are widely studied. However, cocaine also blocks serotonin uptake, which we show drives, in rats, individually variable aversive effects that depend on serotonin 2C receptors (5-HT2CRs) in the rostromedial tegmental nucleus (RMTg), a major GABAergic afferent to midbrain dopamine neurons. 5-HT2CRs produce depolarizing effects in RMTg neurons that are particularly strong in some rats, leading to aversive effects that reduce acquisition of and relapse to cocaine seeking. In contrast, 5-HT2CR signaling is largely lost after cocaine exposure in other rats, leading to reduced aversive effects and increased cocaine seeking. These results suggest a serotonergic biological marker of cocaine-seeking vulnerability that can be targeted to modulate drug seeking.
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Affiliation(s)
- Ying S Chao
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC 29425, USA
| | | | - Maya Eid
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Oliver P Culver
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Tyler B Jackson
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Rachel Lipat
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Makoto Taniguchi
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Thomas C Jhou
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
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Komiyama R, Ohira S, Ueda H, Masaoka A, Ikawa T, Taniguchi M, Isono M, Miyazaki M, Konishi K. [Improved Patients' Satisfaction Level of Radiation Therapy: The Effect of "Explainer Videos about Radiation Therapy", "Treatment of Breast Cancer Patients by Female Radiation Therapists" and "Treating Male Patients While Wearing Underwear in Pelvic Radiation Therapy"]. Nihon Hoshasen Gijutsu Gakkai Zasshi 2023; 79:252-261. [PMID: 36709971 DOI: 10.6009/jjrt.2023-1269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
PURPOSE The questionnaire survey investigated whether "Explainer videos about radiation therapy (RT-Video)", "Treatment of breast cancer patients by female radiation therapists (F-RTT)" and "Treating male patients while wearing underwear in pelvic radiation therapy (M-RTT)" can improve patient's satisfaction. METHODS The RT-Video survey included questions regarding the impression of radiation therapy, improving its understanding, and anxiety reduction (102 patients received radiation therapy). Fifty-one breast cancer patients were asked whether they preferred an F-RTT treatment. Subsequently, the patients treated with F-RTT (41 patients) and M-RTT (50 patients) were surveyed about their treatment satisfaction on a five-point scale. RESULTS RT-Video improved the understanding of radiation therapy for 86 out of 102 patients (84%). In all, 68 out of 102 patients (68%) had a negative impression of radiotherapy; among them, watching the RT-Video reduced anxiety in 63% of patients. A total of 14 out of 51 breast cancer patients (28%) preferred the F-RTT treatment. The percentage of patients who received treatment satisfaction by F-RTT and M-RTT was 95% and 84%, respectively. CONCLUSION RT-Video, F-RTT and M-RTT treatments improved patients' satisfaction.
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Affiliation(s)
- Riho Komiyama
- Department of Radiation Oncology, Osaka International Cancer Institute
| | - Shingo Ohira
- Department of Radiation Oncology, Osaka International Cancer Institute
| | - Hikari Ueda
- Department of Radiation Oncology, Osaka International Cancer Institute
| | - Akira Masaoka
- Department of Radiation Oncology, Osaka International Cancer Institute
| | - Toshiki Ikawa
- Department of Radiation Oncology, Osaka International Cancer Institute
| | - Makoto Taniguchi
- Department of Radiation Oncology, Osaka International Cancer Institute
| | - Masaru Isono
- Department of Radiation Oncology, Osaka International Cancer Institute
| | | | - Koji Konishi
- Department of Radiation Oncology, Osaka International Cancer Institute
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Kondo M, Kimura K, Kobayashi-Sun J, Yamamori S, Taniguchi M, Traver D, Kobayashi I. The sinusoidal hematopoietic niche is formed by Jam1a via Notch signaling in the zebrafish kidney. iScience 2023; 26:106508. [PMID: 37123221 PMCID: PMC10139997 DOI: 10.1016/j.isci.2023.106508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 02/03/2023] [Accepted: 03/24/2023] [Indexed: 03/29/2023] Open
Abstract
The zebrafish is a unique model to understand hematopoietic niches as hematopoietic stem/progenitor cells are maintained in the kidney. However, little is known about which cell types in the kidney play a role in hematopoietic niches. Here, we demonstrate that the sinusoidal endothelium is an essential and conserved niche component in the zebrafish kidney. Histological analysis revealed that runx1:mCherry + hematopoietic cells were predominantly detected in the dorsolateral region of the kidney where sinusoids are highly developed. Loss of Junctional adhesion molecule 1a (Jam1a), which is expressed in both sinusoidal endothelial cells and hematopoietic cells, resulted in a remarkable reduction in sinusoids and a defect in hematopoietic niches. We found that Jam1a regulates jagged-1a expression in vascular endothelial cells to form a sinusoidal structure in the kidney. Collectively, these data suggest that sinusoids are formed by Jam1a via endothelial Notch signaling to provide hematopoietic niches in the zebrafish kidney.
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Hughes BW, Siemsen BM, Tsvetkov E, Berto S, Kumar J, Cornbrooks RG, Akiki RM, Cho JY, Carter JS, Snyder KK, Assali A, Scofield MD, Cowan CW, Taniguchi M. NPAS4 in the medial prefrontal cortex mediates chronic social defeat stress-induced anhedonia-like behavior and reductions in excitatory synapses. eLife 2023; 12:e75631. [PMID: 36780219 PMCID: PMC9925055 DOI: 10.7554/elife.75631] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 01/29/2023] [Indexed: 02/14/2023] Open
Abstract
Chronic stress can produce reward system deficits (i.e., anhedonia) and other common symptoms associated with depressive disorders, as well as neural circuit hypofunction in the medial prefrontal cortex (mPFC). However, the molecular mechanisms by which chronic stress promotes depressive-like behavior and hypofrontality remain unclear. We show here that the neuronal activity-regulated transcription factor, NPAS4, in the mPFC is regulated by chronic social defeat stress (CSDS), and it is required in this brain region for CSDS-induced changes in sucrose preference and natural reward motivation in the mice. Interestingly, NPAS4 is not required for CSDS-induced social avoidance or anxiety-like behavior. We also find that mPFC NPAS4 is required for CSDS-induced reductions in pyramidal neuron dendritic spine density, excitatory synaptic transmission, and presynaptic function, revealing a relationship between perturbation in excitatory synaptic transmission and the expression of anhedonia-like behavior in the mice. Finally, analysis of the mice mPFC tissues revealed that NPAS4 regulates the expression of numerous genes linked to glutamatergic synapses and ribosomal function, the expression of upregulated genes in CSDS-susceptible animals, and differentially expressed genes in postmortem human brains of patients with common neuropsychiatric disorders, including depression. Together, our findings position NPAS4 as a key mediator of chronic stress-induced hypofrontal states and anhedonia-like behavior.
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Affiliation(s)
- Brandon W Hughes
- Department of Neuroscience, Medical University of South CarolinaCharlestonUnited States
| | - Benjamin M Siemsen
- Department of Neuroscience, Medical University of South CarolinaCharlestonUnited States
- Department of Anesthesiology, Medical University of South CarolinaCharlestonUnited States
| | - Evgeny Tsvetkov
- Department of Neuroscience, Medical University of South CarolinaCharlestonUnited States
| | - Stefano Berto
- Department of Neuroscience, Medical University of South CarolinaCharlestonUnited States
| | - Jaswinder Kumar
- Department of Psychiatry, Harvard Medical SchoolBelmontUnited States
- Neuroscience Graduate Program, University of Texas Southwestern Medical CenterDallasUnited States
| | - Rebecca G Cornbrooks
- Department of Neuroscience, Medical University of South CarolinaCharlestonUnited States
| | - Rose Marie Akiki
- Department of Neuroscience, Medical University of South CarolinaCharlestonUnited States
| | - Jennifer Y Cho
- Department of Neuroscience, Medical University of South CarolinaCharlestonUnited States
| | - Jordan S Carter
- Department of Neuroscience, Medical University of South CarolinaCharlestonUnited States
| | - Kirsten K Snyder
- Department of Neuroscience, Medical University of South CarolinaCharlestonUnited States
| | - Ahlem Assali
- Department of Neuroscience, Medical University of South CarolinaCharlestonUnited States
| | - Michael D Scofield
- Department of Neuroscience, Medical University of South CarolinaCharlestonUnited States
- Department of Anesthesiology, Medical University of South CarolinaCharlestonUnited States
| | - Christopher W Cowan
- Department of Neuroscience, Medical University of South CarolinaCharlestonUnited States
- Department of Psychiatry, Harvard Medical SchoolBelmontUnited States
- Neuroscience Graduate Program, University of Texas Southwestern Medical CenterDallasUnited States
| | - Makoto Taniguchi
- Department of Neuroscience, Medical University of South CarolinaCharlestonUnited States
- Department of Psychiatry, Harvard Medical SchoolBelmontUnited States
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Taniguchi M, Uesaka K. Microbial Genome Sequencing and Assembly Using Nanopore Sequencers. Methods Mol Biol 2023; 2632:31-39. [PMID: 36781719 DOI: 10.1007/978-1-0716-2996-3_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/27/2023]
Abstract
Microbial genomes are typically several million base pairs in length and are relatively easy to sequence and assemble into a single chromosome, given the advances in long-read sequencing platforms such as that of Oxford Nanopore Technologies. This chapter describes the experimental as well as computational steps in the sequencing and assembly of microbial genomes.
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Affiliation(s)
- Makoto Taniguchi
- Oral Microbiome Center, Taniguchi Dental Clinic, Kagawa, Japan.
- Genome Read Inc., Kagawa, Japan.
| | - Kazuma Uesaka
- The Center for Gene Research, Nagoya University, Aichi, Japan
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12
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Haraguchi M, Neise T, She W, Taniguchi M. Conversion strategy builds supply chain resilience during the COVID-19 pandemic: A typology and research directions. Prog Disaster Sci 2023; 17:100276. [PMID: 36748009 PMCID: PMC9892297 DOI: 10.1016/j.pdisas.2023.100276] [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] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 01/22/2023] [Accepted: 01/26/2023] [Indexed: 06/18/2023]
Abstract
This study proposes a novel typology of adaptation to hazards-a conversion strategy as a countermeasure to manage risks in interconnected supply chains. Conversion strategies are intended to transform one or multiple supply chain functions for a different one to manage the changing environment. Supply chain disruptions due to natural hazards have been researched in key manufacturing-based economies like Thailand, the US, Japan, and China. Limited studies, however, have looked at the nature of interconnected risks and its effective countermeasures that arise when the COVID-19 pandemic disrupt supply chains. Here, we examine systemic risks by contrasting supply chain disruptions caused by natural hazards and the pandemic. Our study investigates whether businesses can manage systemic risks brought on by the pandemic by learning from dealing with disruptions caused by natural hazards. We offer a typology of conversion strategies to demonstrate how conversion strategies can be a successful response to pandemic scenarios. Specifically, we propose six conversion types: production location, production line, storage, usage, distributional channel, and workforce skill set. Then, we conclude with the future research directions as well as the kinds of policy supports required to assist businesses in implementing conversion measures by drawing on prior work addressing natural hazards.
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Affiliation(s)
- Masahiko Haraguchi
- Research Institute for Humanity and Nature, Japan
- Harvard University, United States
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Watai K, Sekiya K, Taniguchi M. P07-36 Metagenomic analysis of gut microbiome in multiple chemical sensitivity. Toxicol Lett 2022. [DOI: 10.1016/j.toxlet.2022.07.379] [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: 11/17/2022]
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Abstract
Substance use induces long-lasting behavioral changes and drug craving. Increasing evidence suggests that epigenetic gene regulation contributes to the development and expression of these long-lasting behavioral alterations. Here we systematically review extensive evidence from rodent models of drug-induced changes in epigenetic regulation and epigenetic regulator proteins. We focus on histone acetylation and histone methylation in a brain region important for drug-related behaviors: the nucleus accumbens. We also discuss how experimentally altering these epigenetic regulators via systemically administered compounds or nucleus accumbens-specific manipulations demonstrate the importance of these proteins in the behavioral effects of drugs and suggest potential therapeutic value to treat people with substance use disorder. Finally, we discuss limitations and future directions for the field of epigenetic studies in the behavioral effects of addictive drugs and suggest how to use these insights to develop efficacious treatments.
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Ishizu A, Taniguchi M, Arai S, Nishibata Y, Masuda S, Tomaru U, Shimizu T, Sinko W, Nagakura T, Terada Y. OP0090 PRECLINICAL STUDIES OF A NOVEL CATHEPSIN C INHIBITOR IN MPO-ANCA-ASSOCIATED VASCULITIS MODEL. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundMPO-ANCA-associated vasculitis (MPO-AAV) is a systemic small vessel vasculitis with the production of MPO-ANCA in the serum. This disease develops necrotizing and crescent glomerulonephritis (NCGN) and peritubular capillaritis-mediated interstitial damages in the kidneys, and pulmonary hemorrhage due to capillaritis in the lungs. Recent studies have revealed that neutrophil extracellular traps (NETs) induced by MPO-ANCA are critically involved in its pathogenesis,1 and neutrophil elastase (NE) plays an essential role in the formation of NETs.2 Cathepsin C (CatC) functions as a key enzyme in the activation process of several neutrophil serine proteases (NSPs) such as NE, proteinase 3 and cathepthin G by converting the inactive forms of the NSPs to the active forms by digesting dipeptides at the N-terminus of the enzymes.3ObjectivesAlthough glucocorticoids and immunosuppressive drugs used as the standard of cares can lead remission in MPO-AAV patients, there are remaining unmet medical needs such as severe side effects, resistance to the treatment and relapse. Therefore, development of new therapeutic strategies is awaited. The aim of this study is to demonstrate the efficacy of MOD06051, a novel CatC inhibitor, against MPO-AAV, using an MPO-AAV rat model established previously.4MethodsIn vitro studies: Cathpsins and NE inhibitory activity was measured using recombinant enzymes and fluorescent substrates. Cellular NE activity in the granulocytes differentiated from the primary human bone marrow-derived hematopietic stem cells under the presence or absence of MOD06051 was determined using fluorescent substrates.In vivo studies: 4-week-old Wistar Kyoto (WKY) rats were immunized with human MPO according to Little’s protocol.4 The rats were divided into three groups (n=8 in each group), and vehicle (0.5% methylcellulose) or MOD06051 (0.3 or 3 mg/kg bid) was orally administered every day for 42 days. All rats were euthanized at the end of the study for serological and histological evaluations.ResultsIn vitro studies: MOD06051 inhibited the enzymatic activity of human recombinant CatC with an IC50 value of 1.5 nM, and no other cathepsins nor NE inhibition was observed at 10 μM. The NE activity in primary human granulocytes was suppressed by MOD06051 with an IC50 value of 18 nM.In vivo studies: MPO-ANCA was induced in all groups at the same level. The percentage of affected glomeruli including those with NCGN, NET-forming neutrophils in the peripheral blood and glomeruli, and glomerular neutrophil counts were significantly suppressed by MOD06051 treatment in a dose-dependent manner. Furthermore, hematuria score, urinary NGAL (Neutrophil Gelatinase-Associated Lipocalin), tubular erythrocyte cast counts, and pulmonary hemorrhage foci were significantly decreased in the 3 mg/kg of MOD06051 treated group with the similar trends in 0.3 mg/kg group.ConclusionMOD06051 showed sepcific inhibition of CatC activity. This compound suppressed the serine proteases activation in primary human neutrophils and NET formation in the MPO-AAV model rats, resulting in amelioration of MPO-ANCA-induced tissue destruction, including NCGN and tubular interstitial damages in the kidneys, and disorder of alveolar septal capillaries in the lungs. MOD06051 appears to be a promising agent for treatment of MPO-AAV patients.References[1]Nakazawa D, et al. Nat Rev Rheumatol 15: 91-101, 2019.[2]Papayannopoulos V, et al. J Cell Biol 191: 677-691, 2010.[3]Korkmaz B, et al. Pharmacol Ther 190: 202-236, 2018.[4]Little MA, et al. Am J Pathol 174: 1212-1220, 2009.Disclosure of InterestsAkihiro Ishizu Grant/research support from: Modulus Discovery, Inc., Mai Taniguchi: None declared, Suishin Arai: None declared, Yuka Nishibata Grant/research support from: Modulus Discovery, Inc., Sakiko Masuda Grant/research support from: Modulus Discovery, Inc., Utano Tomaru: None declared, Takafumi Shimizu Shareholder of: Modulus Discovery, Inc., Employee of: Modulus Discovery, Inc., William Sinko Shareholder of: Modulus Discovery, Inc., Employee of: Modulus Discovery, Inc., Tadashi Nagakura Shareholder of: Modulus Discovery, Inc., Employee of: Modulus Discovery, Inc., Yoh Terada Shareholder of: Modulus Discovery, Inc., Employee of: Modulus Discovery, Inc.
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Yamamoto T, Taniguchi M, Matsunaga K, Kawata Y, Kawamura M, Okubo K, Yamashiro K, Omori K, Takashiba S. Analysis of subgingival microbiota in monozygotic twins with different severity and progression risk of periodontitis. Clin Case Rep 2022; 10:e05725. [PMID: 35449775 PMCID: PMC9014707 DOI: 10.1002/ccr3.5725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 03/11/2022] [Accepted: 03/27/2022] [Indexed: 11/24/2022] Open
Abstract
The study aims to reveal the composition of subgingival bacteria in monozygotic twins with discordant in severity and progression risk of periodontitis. Microbiome analysis indicated that most bacteria were heritable but differed in their abundance and immune response. The dysbiotic bacteria can be considered as risk markers for periodontitis progression.
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Affiliation(s)
- Tadashi Yamamoto
- Department of Pathophysiology ‐ Periodontal Science Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences Okayama Japan
| | | | - Kazuyuki Matsunaga
- Department of Pathophysiology ‐ Periodontal Science Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences Okayama Japan
- Department of Neurology Brain Attack Center Ota Memorial Hospital Fukuyama, Hiroshima Japan
| | - Yusuke Kawata
- Department of Pathophysiology ‐ Periodontal Science Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences Okayama Japan
| | - Mari Kawamura
- Department of Pathophysiology ‐ Periodontal Science Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences Okayama Japan
| | - Keisuke Okubo
- Department of Pathophysiology ‐ Periodontal Science Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences Okayama Japan
| | - Keisuke Yamashiro
- Department of Pathophysiology ‐ Periodontal Science Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences Okayama Japan
| | - Kazuhiro Omori
- Department of Pathophysiology ‐ Periodontal Science Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences Okayama Japan
| | - Shogo Takashiba
- Department of Pathophysiology ‐ Periodontal Science Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences Okayama Japan
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Fujita J, Taniguchi M, Hashizume C, Ueda Y, Sakai S, Kondo T, Hashimoto-Nishimura M, Hanada K, Kosaka T, Okazaki T. Nuclear Ceramide Is Associated with Ataxia Telangiectasia Mutated Activation in the Neocarzinostatin-Induced Apoptosis of Lymphoblastoid Cells. Mol Pharmacol 2022; 101:322-333. [PMID: 35273080 DOI: 10.1124/molpharm.121.000379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 02/22/2022] [Indexed: 01/14/2023] Open
Abstract
Ceramide is a bioactive sphingolipid that mediates ionizing radiation- and chemotherapy-induced apoptosis. Neocarzinostatin (NCS) is a genotoxic anti-cancer drug that induces apoptosis in response to DNA double-strand breaks (DSBs) through ataxia telangiectasia mutated (ATM) activation. However, the involvement of ceramide in NCS-evoked nuclear events such as DSB-activated ATM has not been clarified. Here, we found that nuclear ceramide increased by NCS-mediated apoptosis through the enhanced assembly of ATM and the meiotic recombination 11/double-strand break repair/Nijmengen breakage syndrome 1 (MRN) complex proteins in human lymphoblastoid L-39 cells. NCS induced an increase of ceramide production through activation of neutral sphingomyelinase (nSMase) and suppression of sphingomyelin synthase (SMS) upstream of DSB-mediated ATM activation. In ATM-deficient lymphoblastoid AT-59 cells compared with L-39 cells, NCS treatment showed a decrease of apoptosis even though ceramide increase and DSBs were observed. Expression of wild-type ATM, but not the kinase-dead mutant ATM, in AT-59 cells increased NCS-induced apoptosis despite similar ceramide accumulation. Interestingly, NCS increased ceramide content in the nucleus through nSMase activation and SMS suppression and promoted colocalization of ceramide with phosphorylated ATM and foci of MRN complex. Inhibition of ceramide generation by the overexpression of SMS suppressed NCS-induced apoptosis through the inhibition of ATM activation and assembly of the MRN complex. In addition, inhibition of ceramide increased by the nSMase inhibitor GW4869 prevented NCS-mediated activation of the ATM. Therefore, our findings suggest the involvement of the nuclear ceramide with ATM activation in NCS-mediated apoptosis. SIGNIFICANCE STATEMENT: This study demonstrates that regulation of ceramide with neutral sphingomyelinase and sphingomyelin synthase in the nucleus in double-strand break-mimetic agent neocarzinostatin (NCS)-induced apoptosis. This study also showed that ceramide increase in the nucleus plays a role in NCS-induced apoptosis through activation of the ataxia telangiectasia mutated/meiotic recombination 11/double-strand break repair/Nijmengen breakage syndrome 1 complex in human lymphoblastoid cells.
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Affiliation(s)
- Jun Fujita
- Division of General and Digestive Surgery, Department of Medicine (J.F., C.H., T.K.) and Medical Research Institute (M.T.), Kanazawa Medical University, Ishikawa, Japan; Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, Ishikawa, Japan (C.H., T.O.); Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, Japan (Y.U.); Department of Biochemistry and Cell Biology, National Institute of Infectious Diseases, Tokyo, Japan. (S.S., K.H.); Department of Hematology/Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan (T.K.); and Department of Hematology/Oncology, Faculty of Medicine, Tottori University, Yonago, Japan (M.H.-N.)
| | - Makoto Taniguchi
- Division of General and Digestive Surgery, Department of Medicine (J.F., C.H., T.K.) and Medical Research Institute (M.T.), Kanazawa Medical University, Ishikawa, Japan; Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, Ishikawa, Japan (C.H., T.O.); Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, Japan (Y.U.); Department of Biochemistry and Cell Biology, National Institute of Infectious Diseases, Tokyo, Japan. (S.S., K.H.); Department of Hematology/Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan (T.K.); and Department of Hematology/Oncology, Faculty of Medicine, Tottori University, Yonago, Japan (M.H.-N.)
| | - Chieko Hashizume
- Division of General and Digestive Surgery, Department of Medicine (J.F., C.H., T.K.) and Medical Research Institute (M.T.), Kanazawa Medical University, Ishikawa, Japan; Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, Ishikawa, Japan (C.H., T.O.); Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, Japan (Y.U.); Department of Biochemistry and Cell Biology, National Institute of Infectious Diseases, Tokyo, Japan. (S.S., K.H.); Department of Hematology/Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan (T.K.); and Department of Hematology/Oncology, Faculty of Medicine, Tottori University, Yonago, Japan (M.H.-N.)
| | - Yoshibumi Ueda
- Division of General and Digestive Surgery, Department of Medicine (J.F., C.H., T.K.) and Medical Research Institute (M.T.), Kanazawa Medical University, Ishikawa, Japan; Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, Ishikawa, Japan (C.H., T.O.); Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, Japan (Y.U.); Department of Biochemistry and Cell Biology, National Institute of Infectious Diseases, Tokyo, Japan. (S.S., K.H.); Department of Hematology/Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan (T.K.); and Department of Hematology/Oncology, Faculty of Medicine, Tottori University, Yonago, Japan (M.H.-N.)
| | - Shota Sakai
- Division of General and Digestive Surgery, Department of Medicine (J.F., C.H., T.K.) and Medical Research Institute (M.T.), Kanazawa Medical University, Ishikawa, Japan; Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, Ishikawa, Japan (C.H., T.O.); Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, Japan (Y.U.); Department of Biochemistry and Cell Biology, National Institute of Infectious Diseases, Tokyo, Japan. (S.S., K.H.); Department of Hematology/Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan (T.K.); and Department of Hematology/Oncology, Faculty of Medicine, Tottori University, Yonago, Japan (M.H.-N.)
| | - Tadakazu Kondo
- Division of General and Digestive Surgery, Department of Medicine (J.F., C.H., T.K.) and Medical Research Institute (M.T.), Kanazawa Medical University, Ishikawa, Japan; Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, Ishikawa, Japan (C.H., T.O.); Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, Japan (Y.U.); Department of Biochemistry and Cell Biology, National Institute of Infectious Diseases, Tokyo, Japan. (S.S., K.H.); Department of Hematology/Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan (T.K.); and Department of Hematology/Oncology, Faculty of Medicine, Tottori University, Yonago, Japan (M.H.-N.)
| | - Mayumi Hashimoto-Nishimura
- Division of General and Digestive Surgery, Department of Medicine (J.F., C.H., T.K.) and Medical Research Institute (M.T.), Kanazawa Medical University, Ishikawa, Japan; Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, Ishikawa, Japan (C.H., T.O.); Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, Japan (Y.U.); Department of Biochemistry and Cell Biology, National Institute of Infectious Diseases, Tokyo, Japan. (S.S., K.H.); Department of Hematology/Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan (T.K.); and Department of Hematology/Oncology, Faculty of Medicine, Tottori University, Yonago, Japan (M.H.-N.)
| | - Kentaro Hanada
- Division of General and Digestive Surgery, Department of Medicine (J.F., C.H., T.K.) and Medical Research Institute (M.T.), Kanazawa Medical University, Ishikawa, Japan; Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, Ishikawa, Japan (C.H., T.O.); Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, Japan (Y.U.); Department of Biochemistry and Cell Biology, National Institute of Infectious Diseases, Tokyo, Japan. (S.S., K.H.); Department of Hematology/Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan (T.K.); and Department of Hematology/Oncology, Faculty of Medicine, Tottori University, Yonago, Japan (M.H.-N.)
| | - Takeo Kosaka
- Division of General and Digestive Surgery, Department of Medicine (J.F., C.H., T.K.) and Medical Research Institute (M.T.), Kanazawa Medical University, Ishikawa, Japan; Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, Ishikawa, Japan (C.H., T.O.); Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, Japan (Y.U.); Department of Biochemistry and Cell Biology, National Institute of Infectious Diseases, Tokyo, Japan. (S.S., K.H.); Department of Hematology/Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan (T.K.); and Department of Hematology/Oncology, Faculty of Medicine, Tottori University, Yonago, Japan (M.H.-N.)
| | - Toshiro Okazaki
- Division of General and Digestive Surgery, Department of Medicine (J.F., C.H., T.K.) and Medical Research Institute (M.T.), Kanazawa Medical University, Ishikawa, Japan; Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, Ishikawa, Japan (C.H., T.O.); Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, Japan (Y.U.); Department of Biochemistry and Cell Biology, National Institute of Infectious Diseases, Tokyo, Japan. (S.S., K.H.); Department of Hematology/Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan (T.K.); and Department of Hematology/Oncology, Faculty of Medicine, Tottori University, Yonago, Japan (M.H.-N.)
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Ohkura N, Taniguchi M, Oishi K, Inoue K, Ohta M. Angelica keiskei (Ashitaba) has potential as an antithrombotic health food. Food Res 2022. [DOI: 10.26656/fr.2017.6(2).121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Angelica keiskei (Ashitaba) is a large perennial herb that is native to the Pacific coast of
Japan. It has recently become popular as a healthy food in Asian countries because it
might have various physiological benefits including antithrombotic properties. Most
studies of the bioactive constituents from Ashitaba have focused on the activities of the
major chalcones, xanthoangelol and 4-hydroxyderricin. However, other chalcones,
flavanones and coumarins have also been isolated from Ashitaba, precisely characterized,
and investigated in vivo. Platelets play a key role in haemostasis and wound healing
processes. Dysregulated platelet activity is associated with the progression of platelet
aggregation and decreased venous blood flow, which results in thrombotic diseases. A
minor chalcone, xanthoangelol E, inhibits TXB2 synthesis in rabbit platelets, which seems
to be the source of the belief that Ashitaba has antithrombotic properties. However, recent
data showed that xanthoangelol and 4-hydroxyderricin inhibited the aggregation of rabbit
platelets. Platelet aggregation stimulated by collagen was also inhibited in whole blood
incubated with Xanthoangelol or 4-hydroxyderricin. Plasminogen activator inhibitor-1 is
the primary physiological inhibitor of tissue type plasminogen activator, a key protease of
the fibrinolytic system. An increase in plasma of this inhibitor is associated with
thrombotic conditions. Ashitaba yellow exudate inhibited the elevation of plasma
plasminogen activator inhibitor-1 in mice induced by obesity or chronic low-grade
inflammation. These studies showed the yellow exudate from stem cuttings and chalcones
isolated from Ashitaba roots and leaves might have antithrombotic activity. This article
reviews the possible antithrombotic properties of Ashitaba.
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Ideta S, Johnston S, Yoshida T, Tanaka K, Mori M, Anzai H, Ino A, Arita M, Namatame H, Taniguchi M, Ishida S, Takashima K, Kojima KM, Devereaux TP, Uchida S, Fujimori A. Hybridization of Bogoliubov Quasiparticles between Adjacent CuO_{2} Layers in the Triple-Layer Cuprate Bi_{2}Sr_{2}Ca_{2}Cu_{3}O_{10+δ} Studied by Angle-Resolved Photoemission Spectroscopy. Phys Rev Lett 2021; 127:217004. [PMID: 34860085 DOI: 10.1103/physrevlett.127.217004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 07/08/2021] [Accepted: 10/20/2021] [Indexed: 06/13/2023]
Abstract
Hybridization of Bogoliubov quasiparticles (BQPs) between the CuO_{2} layers in the triple-layer cuprate high-temperature superconductor Bi_{2}Sr_{2}Cu_{2}Cu_{3}O_{10+δ} is studied by angle-resolved photoemission spectroscopy (ARPES). In the superconducting state, an anticrossing gap opens between the outer- and inner-BQP bands, which we attribute primarily to interlayer single-particle hopping with possible contributions from interlayer Cooper pairing. We find that the d-wave superconducting gap of both BQP bands smoothly develops with momentum without an abrupt jump in contrast to a previous ARPES study. Hybridization between the BQPs also gradually increases in going from the off nodal to the antinodal region, which is explained by the momentum dependence of the interlayer single-particle hopping. As possible mechanisms for the enhancement of the superconducting transition temperature, the hybridization between the BQPs as well as the combination of phonon modes of the triple CuO_{2} layers and spin fluctuations represented by a four-well model are discussed.
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Affiliation(s)
- S Ideta
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
- UVSOR-III Synchrotron, Institute for Molecular Science, Okazaki 444-8585, Japan
| | - S Johnston
- Department of Physics and Astronomy, The University of Tennessee, Knoxville, Tennessee 37996, USA
| | - T Yoshida
- Department of Human and Environmental studies, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
| | - K Tanaka
- UVSOR-III Synchrotron, Institute for Molecular Science, Okazaki 444-8585, Japan
| | - M Mori
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - H Anzai
- Graduate School of Engineering, Osaka Prefecture University, Sakai 599-8531, Japan
- Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - A Ino
- Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima 739-0046, Japan
- Department of Education and Creation Engineering, Kurume Institute of Technology, Fukuoka 2286-66, Japan
| | - M Arita
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima 739-0046, Japan
| | - H Namatame
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima 739-0046, Japan
| | - M Taniguchi
- Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima 739-0046, Japan
| | - S Ishida
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
- National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8568, Japan
| | - K Takashima
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - K M Kojima
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
- J-PARC Center and Institute of Materials Structure Science, KEK, Tsukuba, Ibaraki 305-0801, Japan
- Centre for Molecular and Materials Science, TRIUMF, 4004 Vancouver, Canada
| | - T P Devereaux
- Geballe Laboratory for Advanced Materials, Stanford University, Stanford, California 94305, USA
- Stanford Institute for Materials and Energy Sciences, SLAC National Laboratory and Stanford University, Menlo Park, California 94025, USA
- Department of Materials Science and Engineering Stanford University, Stanford, California 94305, USA
| | - S Uchida
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
- National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8568, Japan
| | - A Fujimori
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
- Department of Applied Physics, Waseda University, Shinjuku-ku, Tokyo 169-8555, Japan
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Falk J, Attig-Bahar F, Colwell RR, Behera SK, El-Beltagy AS, von Braun J, Dasgupta P, Gleick PH, Kaneko R, Kennel CF, Koundouri P, Lee YT, Lovejoy TE, Luers A, Murray CA, Lal R, Serageldin I, Sokona Y, Takeuchi K, Taniguchi M, Watanabe C, Yasunari T. Addressing our planetary crisis: Consensus statement from the presenters and International Advisory Committee of the Regional Action on Climate Change (RACC) Symposium held in conjunction with the Kyoto-based Science and Technology in Society (STS) Forum, 1 October 2021. Sustain Sci 2021; 17:5-7. [PMID: 34745367 PMCID: PMC8559913 DOI: 10.1007/s11625-021-01059-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
- Jim Falk
- Melbourne Sustainable Society Institute, University of Melbourne, Melbourne, Australia
- University of Wollongong, Wollongong, Australia
| | | | - Rita R. Colwell
- Center for Bioinformatics and Computational Biology, University of Maryland, College Park, USA
- Johns Hopkins Bloomberg School of Public Health, Baltimore, USA
| | - Swadhin K. Behera
- Application Laboratory, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Japan
- Department of Ocean Technology, Policy, and Environment, The University of Tokyo, Tokyo, Japan
| | - Adel S. El-Beltagy
- International Dryland Development Commission, Arid Land Agricultural Graduate Studies and Research Institute, Ain Shams University, Cairo, Egypt
| | - Joachim von Braun
- Pontifical Academy of Sciences, Vatican City, Vatican City
- Center for Development Research (ZEF), Bonn University, Bonn, Germany
| | - Partha Dasgupta
- Faculty of Economics, University of Cambridge, Cambridge, UK
| | - Peter H. Gleick
- Pacific Institute for Studies in Development, Environment and Security, Oakland, USA
| | - Ryuichi Kaneko
- School of Political Science and Economics, Meiji University, Tokyo, Japan
| | - Charles F. Kennel
- Scripps Institution of Oceanography, University of California (UCSD), San Diego, USA
- Centre for Science and Policy, University of Cambridge, Cambridge, UK
| | - Phoebe Koundouri
- ReSEES Research Laboratory, Sustainable Development Unit and EIT Climate-KIC Hub, Athena Research Center, Athens University of Economics and Business, Athens, Greece
| | | | - Thomas E. Lovejoy
- Department of Environmental Science and Policy, George Mason University, Fairfax, USA
- United Nations Foundation, Washington, DC, USA
| | - Amy Luers
- Sustainability Science, Microsoft, Redmond, USA
| | - Cherry A. Murray
- Harvard University, Cambridge, USA
- University of Arizona, Tucson, USA
| | - Rattan Lal
- CFAES Rattan Lal Center for Carbon Management and Sequestration, The Ohio State University, Columbus, USA
| | | | | | - Kazuhiko Takeuchi
- Institute for Global Environmental Strategies (IGES), Kanagawa, Japan
- Institute for Future Initiatives (IFI), The University of Tokyo, Tokyo, Japan
| | - Makoto Taniguchi
- RIHN Center, Research Institute for Humanity and Nature (RIHN), Kyoto, Japan
| | - Chiho Watanabe
- School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki, Japan
- The University of Tokyo, Tokyo, Japan
| | - Tetsuzo Yasunari
- RIHN Center, Research Institute for Humanity and Nature (RIHN), Kyoto, Japan
- Kyoto Climate Change Adaptation Center (KCCAC), Kyoto, Japan
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22
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Kawamura K, Ejiri K, Toda H, Miyoshi T, Yamanaka T, Taniguchi M, Kawamoto K, Tokioka K, Naito Y, Yoshioka R, Karashima E, Fujio H, Fuke S, Nakamura K, Ito H. Association between adherence to home-based walking exercise with a pedometer and one-year adverse outcomes among lower extremity peripheral artery disease patients with endovascular treatment. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Home-based exercise after endovascular treatment (EVT) for lower extremity peripheral artery disease (LE-PAD) patients with intermittent claudication is suggested as an alternative therapy for supervised exercise; however, an association of adherence to home-based exercise with clinical adverse events has not been fully investigated.
Purpose
We aimed to investigate the association of adherence to home-based exercise with 1-year major adverse events (MAE), patency, and leg symptoms after EVT in a contemporary Japanese registry.
Methods
A total of 500 patients with LE-PAD within the Long Term Outcome of Endovascular Therapy for PAD with Intermittent Claudication Observational Prospective Multicenter (ASHIMORI-IC) registry (UMINCTR, UMINehab724.203718753) who underwent EVT between January 2016 and March 2019 were included in the analysis. After EVT, all patients were instructed to do home-based walking exercise with a pedometer. The study population was divided and compared between 2 groups according to adherence to home-based exercise: well-adherence and poor-adherence. The adherence of home-based exercise was as defined by step count derived from a pedometer on sites. The primary outcome was MAE defined as composite of all-cause death, myocardial infarction, stroke, target vessel revascularization, and major amputation of target lower limb for one year. The main secondary outcome was 1-year primary patency of the treated lesion, and the improvement of leg symptom (6-minute walk distance [6MWD] and claudication distance). The study followed the Consensus definitions from peripheral academic research consortium criteria.
Results
Overall, the mean age was 72.8 years, and 78% were men. At 1 year, MAE occurred in 45 patients (9.0%), and the primary patency rate was 85.3% (94.2% of EVT for aortoiliac and 71.9% of EVT for femoropopliteal). A significant difference in the incidence of MAE was observed between the well-adherence group and the poor-adherence group (10 of 233 patients [4.3%] vs. 35 of 267 patients [13.1%]; P<0.001). After multivariate Cox regression analysis, patients in the well-adherence group showed the lower hazard ratio for 1-year MAE (0.30; 95% confidence interval, 0.15–0.58; P<0.001) compared to those in the poor-adherence group. In the well-adherence group, compared with the poor-adherence group, higher primary patency rate (88.9% vs 81.5%; p=0.015), longer claudication onset distance (370 m [IQR 240–453 m] vs 240m [IQR 126–324 m]; P<0.001), and longer 6MWD (422 m [IQR 359–483 m] vs 325 m [IQR 213–400 m]; P<0.001) were observed even after adjusting for each baseline value.
Conclusion
Our study demonstrates the importance of adherence to home-based walking exercise after EVT in LE-PAD patients.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
| | - K Ejiri
- Okayama University Hospital, Okayama, Japan
| | - H Toda
- Okayama University Hospital, Okayama, Japan
| | - T Miyoshi
- Okayama University Hospital, Okayama, Japan
| | - T Yamanaka
- Tsuyama Central Hospital, Tsuyama, Japan
| | - M Taniguchi
- Fukuyama Cardiovascular Hospital, Fukuyama, Japan
| | | | - K Tokioka
- Okayama City Hospital, Okayama, Japan
| | - Y Naito
- Fukuyama City Hospital, Fukuyama, Japan
| | - R Yoshioka
- The Sakakibara Heart Institute of Okayama, Okayama, Japan
| | - E Karashima
- Shimonoseki City Hospital, Shimonoseki, Japan
| | - H Fujio
- Himeji Red Cross Hospital, Himeji, Japan
| | - S Fuke
- Japanese Red Cross Okayama Hospital, Okayama, Japan
| | - K Nakamura
- Okayama University Hospital, Okayama, Japan
| | - H Ito
- Okayama University Hospital, Okayama, Japan
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23
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Shintani A, Sakata-Haga H, Moriguchi K, Tomosugi M, Sakai D, Tsukada T, Taniguchi M, Asano M, Shimada H, Otani H, Shoji H, Hatta J, Mochizuki T, Hatta T. MC5R Contributes to Sensitivity to UVB Waves and Barrier Function in Mouse Epidermis. JID Innov 2021; 1:100024. [PMID: 34909724 PMCID: PMC8659802 DOI: 10.1016/j.xjidi.2021.100024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 03/23/2021] [Accepted: 04/05/2021] [Indexed: 12/29/2022] Open
Abstract
MC5R is known for its role in the exocrine function of sebaceous glands, but other functions in the epidermis remain unclear. This study focused on the relationship between MC5R and homeostasis in the epidermis and examined the role of MC5R in mice whose skin was irradiated with UVB waves. UVB irradiation-induced skin ulcers and severe inflammation at lower doses in homozygotes of MC5R-deficient (i.e., MC5R -/- ) mice (150 mJ/cm2) than the doses in wild-type mice (500 mJ/cm2). Transepidermal water loss was increased (approximately 10-fold) in adult MC5R -/- mice compared with that in wild-type mice. In neonates, a dye exclusion assay showed no remarkable difference between MC5R -/- and wild-type mice. After UVB irradiation, compared with wild-type mice, MC5R -/- mice showed increased inflammatory cell infiltration in the dermis of the ulcerative region, significantly increased thickness of the epidermis in the nonulcerative region, significantly more prickle cells in the nonulcerative region, and increased serum IL-6 levels but decreased IL-10 levels. Transmission electron microscopy revealed fewer lamellar granules, less lipid secretion, and an expansion of the trans-Golgi network in the epidermis in MC5R -/- mice. This study elucidated the increased sensitivity to UVB irradiation and decreased barrier function in MC5R -/- mice.
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Affiliation(s)
- Akari Shintani
- Department of Anatomy, School of Medicine, Kanazawa Medical University, Uchinada, Japan
| | - Hiromi Sakata-Haga
- Department of Anatomy, School of Medicine, Kanazawa Medical University, Uchinada, Japan
| | - Keiichi Moriguchi
- Department of Oral Anatomy, School of Dentistry, Aichi Gakuin University, Nagoya, Aichi, Japan
| | - Mitsuhiro Tomosugi
- Department of Anatomy, School of Medicine, Kanazawa Medical University, Uchinada, Japan
| | - Daisuke Sakai
- Department of Biology, Kanazawa Medical University, Uchinada, Japan
| | - Tsuyoshi Tsukada
- Department of Anatomy, School of Medicine, Kanazawa Medical University, Uchinada, Japan
| | - Makoto Taniguchi
- Department of Life Science, Medical Research Institute, Kanazawa Medical University, Uchinada, Japan
| | - Masahide Asano
- Institute of Laboratory Animals, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Division of Transgenic Animal Science, Advanced Science Research Center, Kanazawa University, Kanazawa, Japan
| | - Hiroki Shimada
- Department of Medical Science, School of Nursing, Kanazawa Medical University, Uchinada, Japan
| | - Hiroki Otani
- Department of Developmental Biology, Faculty of Medicine, Shimane University, Izumo, Japan
| | - Hiroki Shoji
- Department of Biology, Kanazawa Medical University, Uchinada, Japan
| | - Junko Hatta
- Department of Dermatology, School of Medicine, Kanazawa Medical University, Uchinada, Japan
| | - Takashi Mochizuki
- Department of Dermatology, School of Medicine, Kanazawa Medical University, Uchinada, Japan
| | - Toshihisa Hatta
- Department of Anatomy, School of Medicine, Kanazawa Medical University, Uchinada, Japan
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24
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Taniguchi M, Okazaki T. Role of ceramide/sphingomyelin (SM) balance regulated through "SM cycle" in cancer. Cell Signal 2021; 87:110119. [PMID: 34418535 DOI: 10.1016/j.cellsig.2021.110119] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 08/16/2021] [Accepted: 08/16/2021] [Indexed: 12/15/2022]
Abstract
Sphingomyelin synthase (SMS), which comprises of two isozymes, SMS1 and SMS2, is the only enzyme that generates sphingomyelin (SM) by transferring phosphocholine of phosphatidylcholine to ceramide in mammals. Conversely, ceramide is generated from SM hydrolysis via sphingomyelinases (SMases), ceramide de novo synthesis, and the salvage pathway. The biosynthetic pathway for SM and ceramide content by SMS and SMase, respectively, is called "SM cycle." SM forms a SM-rich microdomain on the cell membrane to regulate signal transduction, such as proliferation/survival, migration, and inflammation. On the other hand, ceramide acts as a lipid mediator by forming a ceramide-rich platform on the membrane, and ceramide exhibits physiological actions such as cell death, cell cycle arrest, and autophagy induction. Therefore, the regulation of ceramide/SM balance by SMS and SMase is responsible for diverse cell functions not only in physiological cells but also in cancer cells. This review outlines the implications of ceramide/SM balance through "SM cycle" in cancer progression and prevention. In addition, the possible involvement of "SM cycle" is introduced in anti-cancer tumor immunity, which has become a hot topic to innovate a more effective and safer way to conquer cancer in recent years.
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Affiliation(s)
- Makoto Taniguchi
- Department of Life Science, Medical Research Institute, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku 920-0293, Japan
| | - Toshiro Okazaki
- Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, 1-308 Suematsu, Nonoichi-shi, Ishikawa 921-8836, Japan; Faculty of Advanced Life Science, Graduate School of Life Science, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo 060-0810, Japan.
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25
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Kubota Y, Yoshimura K, Hamada K, Hirasawa Y, Shida M, Taniguchi M, Matsui H, Ariizumi H, Ishiguro T, Suzuki N, Ohkuma R, Sambe T, Ishida H, Horiike A, Wada S, Tsurutani J, Iwamoto S, Uchida N, Kiuchi Y, Kobayashi S, Tsunoda T. Rare Nivolumab-associated Super Hyper Progressive Disease in Patients With Advanced Gastric Cancer. In Vivo 2021; 35:1865-1875. [PMID: 33910874 DOI: 10.21873/invivo.12449] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 02/04/2021] [Accepted: 02/10/2021] [Indexed: 12/20/2022]
Abstract
BACKGROUND/AIM Rapid tumor growth after administration of immune checkpoint inhibitors is designated hyper progressive disease (HPD). In this study, besides the conventional HPD category, we proposed the "super HPD" category where the disease is naturally rapidly growing. PATIENTS AND METHODS Patients treated for advanced gastric cancer with irinotecan or nivolumab as a third-line treatment were retrospectively compared. RESULTS Eighteen and 26 patients were treated with irinotecan or nivolumab, respectively. There were 3 HPD cases (16.7%) in the irinotecan group, 6 cases (23.1%) in the nivolumab group, and the frequency of HPD was not significantly different. Two cases satisfied the super HPD definition only in the nivolumab group. When one of them was analyzed immunologically, the number of regulatory T cells was found to be increased, resulting in a low neutrophil-to-lymphocyte ratio. CONCLUSION Our proposed super HPD was likely to represent a true HPD, with a frequency of 7.7%.
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Affiliation(s)
- Yutaro Kubota
- Division of Medical Oncology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Kiyoshi Yoshimura
- Division of Medical Oncology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan; .,Department of Clinical Immuno-Oncology, Clinical Research Institute for Clinical Pharmacology and Therapeutics, Showa University, Tokyo, Japan
| | - Kazuyuki Hamada
- Division of Medical Oncology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Yuya Hirasawa
- Division of Medical Oncology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Midori Shida
- Department of Clinical Immuno-Oncology, Clinical Research Institute for Clinical Pharmacology and Therapeutics, Showa University, Tokyo, Japan
| | - Makoto Taniguchi
- Department of Clinical Immuno-Oncology, Clinical Research Institute for Clinical Pharmacology and Therapeutics, Showa University, Tokyo, Japan
| | - Hiroto Matsui
- Department of Gastroenterological, Breast and Endocrine Surgery, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Hirotsugu Ariizumi
- Division of Medical Oncology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Tomoyuki Ishiguro
- Division of Medical Oncology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Norihiro Suzuki
- Division of Gastroenterology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Ryotaro Ohkuma
- Division of Medical Oncology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Takehiko Sambe
- Division of Clinical Pharmacology, Department of Pharmacology, Showa University School of Medicine, Tokyo, Japan
| | - Hiroo Ishida
- Division of Medical Oncology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Atsushi Horiike
- Division of Medical Oncology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Satoshi Wada
- Division of Medical Oncology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan.,Department of Clinical Diagnostic Oncology, Clinical Research Institute for Clinical Pharmacology and Therapeutics, Showa University, Tokyo, Japan
| | - Junji Tsurutani
- Division of Medical Oncology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan.,Advanced Cancer Translational Research Institute, Showa University, Tokyo, Japan
| | - Sanju Iwamoto
- Department of Biochemistry, Showa University School of Medicine, Tokyo, Japan
| | - Naoki Uchida
- Division of Clinical Pharmacology, Department of Pharmacology, Showa University School of Medicine, Tokyo, Japan
| | - Yuji Kiuchi
- Department of Pharmacology, Showa University School of Medicine, Tokyo, Japan
| | - Shinichi Kobayashi
- Clinical Research Institute for Clinical Pharmacology and Therapeutics, Showa University, Tokyo, Japan
| | - Takuya Tsunoda
- Division of Medical Oncology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
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26
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Hirasawa Y, Yoshimura K, Matsui H, Kubota Y, Ishida H, Arai J, Sakaki M, Oguro N, Shida M, Taniguchi M, Hamada K, Ariizumi H, Ishiguro T, Ohkuma R, Sambe T, Horiike A, Imamura CK, Shiozawa E, Wada S, Tsurutani J, Iwamoto S, Uchida N, Kiuchi Y, Tate G, Kobayashi S, Tsunoda T. A case report on severe nivolumab-induced adverse events similar to primary sclerosing cholangitis refractory to immunosuppressive therapy. Medicine (Baltimore) 2021; 100:e25774. [PMID: 34114983 PMCID: PMC8202549 DOI: 10.1097/md.0000000000025774] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 04/15/2021] [Indexed: 01/04/2023] Open
Abstract
INTRODUCTION Immune checkpoint inhibitors (ICIs), particularly anti-PD-1 antibody, have dramatically changed cancer treatment; however, fatal immune-related adverse events (irAEs) can develop. Here, we describe a severe case of sclerosing cholangitis-like irAE. We report the use of 3 immunosuppressive agents that resulted in the death of the patient due to treatment inefficacy. According to a postmarketing study of nivolumab, the frequency of ICI-related sclerosing cholangitis is 0.27% and that of ICI-related cholangitis is 0.20%. There have been 4 case reports of sclerosing cholangitis-like irAE, with imaging findings, including typical intrahepatic bile duct beaded constriction in primary sclerosing cholangitis. Treatment starts with prednisolone and is combined with an immunosuppressant in refractory cases. There are no reports of severe cases that ultimately led to death. PATIENTS CONCERNS The patient is a 64-year-old male with Stage IV squamous cell lung carcinoma; he was hospitalized with abdominal pain and elevation of aspartate transaminase and alanine transaminase, approximately 4 months after ICI administration was suspended. This occurred because the patient treated with nivolumab as the second-line chemotherapy and developed type 1 diabetes mellitus after 11 courses. DIAGNOSIS A grade 3 increase in bilirubin was observed and he was diagnosed with sclerosing cholangitis, based on magnetic resonance cholangiopancreatography imaging and pathological findings of the liver and bile duct. INTERVENTIONS Prednisolone, mycophenolate mofetil, and tacrolimus combination therapy was administered. OUTCOMES The treatment was difficult and failed. He died from liver failure 8 months after diagnosis. In this case, hepatitis and cholangitis, mainly alanine transaminase-dominant liver disorder, developed in the early stages of irAEs. Although he showed some improvement after prednisolone administration, bilirubin levels began rising again, and sclerosing cholangitis did not improve even with the use of 3 immunosuppressive agents recommended by the ESMO Clinical Practice Guidelines for immune-related hepatotoxicity management. Although the antitumor effect showed a complete response, liver failure led to death. CONCLUSION This is the first case report on the ineffectiveness of triple immunosuppressant combination therapy recommended by the guidelines for immune-related hepatotoxicity. It is necessary to develop more appropriate treatment for severe sclerosing cholangitis-like irAE based on the robust evidence.
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Affiliation(s)
- Yuya Hirasawa
- Division of Medical Oncology, Department of Medicine, Showa University School of Medicine
| | - Kiyoshi Yoshimura
- Division of Medical Oncology, Department of Medicine, Showa University School of Medicine
- Department of Clinical Immuno-Oncology, Clinical Research Institute of Clinical Pharmacology and Therapeutics, Showa University
| | - Hiroto Matsui
- Division of Medical Oncology, Department of Medicine, Showa University School of Medicine
| | - Yutaro Kubota
- Division of Medical Oncology, Department of Medicine, Showa University School of Medicine
| | - Hiroo Ishida
- Division of Medical Oncology, Department of Medicine, Showa University School of Medicine
| | - Jun Arai
- Division of Gastroenterology, Department of Medicine
| | | | - Nao Oguro
- Division of Rheumatology, Department of Medicine
| | - Midori Shida
- Department of Clinical Immuno-Oncology, Clinical Research Institute of Clinical Pharmacology and Therapeutics, Showa University
| | - Makoto Taniguchi
- Department of Clinical Immuno-Oncology, Clinical Research Institute of Clinical Pharmacology and Therapeutics, Showa University
| | - Kazuyuki Hamada
- Division of Medical Oncology, Department of Medicine, Showa University School of Medicine
| | - Hirotsugu Ariizumi
- Division of Medical Oncology, Department of Medicine, Showa University School of Medicine
| | - Tomoyuki Ishiguro
- Division of Medical Oncology, Department of Medicine, Showa University School of Medicine
| | - Ryotaro Ohkuma
- Division of Medical Oncology, Department of Medicine, Showa University School of Medicine
| | - Takehiko Sambe
- Division of Clinical Pharmacology, Department of Pharmacology, Showa University School of Medicine
| | - Atsushi Horiike
- Division of Medical Oncology, Department of Medicine, Showa University School of Medicine
| | - Chiyo K. Imamura
- Advanced Cancer Translational Research Institute, Showa University
| | - Eisuke Shiozawa
- Department of Pathology and Laboratory Medicine, Showa University School of Medicine
| | - Satoshi Wada
- Division of Medical Oncology, Department of Medicine, Showa University School of Medicine
- Department of Clinical Diagnostic Oncology, Clinical Research Institute for Clinical Pharmacology and Therapeutics, Showa University
| | - Junji Tsurutani
- Division of Medical Oncology, Department of Medicine, Showa University School of Medicine
- Advanced Cancer Translational Research Institute, Showa University
| | - Sanju Iwamoto
- Division of Physiology and Pathology, Department of Pharmacology, Toxicology and Therapeutics, Showa University School of Pharmacy
| | - Naoki Uchida
- Division of Clinical Pharmacology, Department of Pharmacology, Showa University School of Medicine
| | - Yuji Kiuchi
- Division of Medical Pharmacology, Department of Pharmacology, Showa University School of Medicine
| | - Genshu Tate
- Department of Pathology and Laboratory Medicine, Showa University School of Medicine
| | - Shinichi Kobayashi
- Clinical Research Institute for Clinical Pharmacology and Therapeutics, Showa University, Tokyo, Japan
| | - Takuya Tsunoda
- Division of Medical Oncology, Department of Medicine, Showa University School of Medicine
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27
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Sadakari Y, Yoshida N, Iwanaga A, Saruwatari A, Kaneshiro K, Hirokata G, Aoyagi T, Tamehiro K, Ogata T, Taniguchi M. The use of ultrasound in central vascular ligation during laparoscopic right-sided colon cancer surgery: technical notes. Tech Coloproctol 2021; 25:1155-1161. [PMID: 34095976 DOI: 10.1007/s10151-021-02472-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 05/29/2021] [Indexed: 11/24/2022]
Abstract
BACKGROUND Complete mesocolic excision (CME) with central vascular ligation (CVL) requires the surgeon to sharply dissect the mesocolon and approach the superior mesenteric artery (SMA) and superior mesenteric vein (SMV) for ligation of the supplying vessels relating to right-sided colon cancer at their origin. Even with preoperative images, it can still be challenging to identify these structures during laparoscopic surgery because of various intraoperative conditions. The aim of this study was to assess the efficacy of intraoperative ultrasound (IOUS) for identification of blood vessels during right-sided colon cancer surgery. METHODS We performed IOUS on 19 patients diagnosed with right-sided colon cancer at our institution, in January-October 2020. Preoperatively, a three-dimensional computed tomography (3D-CT) angiogram was obtained for the majority of patients to visualize the SMA, SMV, and their respective branches. The running position of the ileocolic artery (ICA) and right colic artery (RCA) related to the SMV and the presence of the middle colic artery were identified and compared using preoperative 3D-CT, IOUS, and intraoperative findings. RESULTS Nineteen patients [seven men and 12 women with a mean age of 73.9 ± 8.4 years (range 58-82 years)] were studied, including some with a body mass index of > 30 kg/m2, locally advanced cancer, and severe adhesion. There were IOUSs that detected the SMA, SMV, and their tributaries in all patients. The positional relationships between the SMV and the ICA and RCA revealed by IOUS were consistent with the preoperative and intraoperative findings. CONCLUSION IOUS is a safe, feasible, and reproducible technique that can assist in detecting the branching of the SMA and SMV during CME with CVL in laparoscopic right-sided colon cancer surgery, regardless of individual conditions.
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Affiliation(s)
- Y Sadakari
- Department of Surgery, St Mary's Hospital, Kurume, Japan.
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
| | - N Yoshida
- Department of Surgery, St Mary's Hospital, Kurume, Japan
| | - A Iwanaga
- Department of Surgery, St Mary's Hospital, Kurume, Japan
| | - A Saruwatari
- Department of Surgery, St Mary's Hospital, Kurume, Japan
| | - K Kaneshiro
- Department of Surgery, St Mary's Hospital, Kurume, Japan
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - G Hirokata
- Department of Surgery, St Mary's Hospital, Kurume, Japan
| | - T Aoyagi
- Department of Surgery, St Mary's Hospital, Kurume, Japan
| | - K Tamehiro
- Department of Surgery, St Mary's Hospital, Kurume, Japan
| | - T Ogata
- Department of Surgery, St Mary's Hospital, Kurume, Japan
| | - M Taniguchi
- Department of Surgery, St Mary's Hospital, Kurume, Japan
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28
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Sakai S, Makino A, Nishi A, Ichikawa T, Yamashita T, Taniguchi M, Tokudome Y, Hirabayashi Y, Akiyama M, Crumrine D, Uchida Y, Elias PM, Tsuchida T, Hamanaka S. [Pathogenic and Compensatory Mechanisms in Epidermis of Sphingomyelin Synthase 2-Deficient Mice]. Skin Pharmacol Physiol 2021; 34:246-252. [PMID: 33915532 DOI: 10.1159/000515608] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 01/05/2021] [Indexed: 11/19/2022]
Abstract
Sphingomyelin (SM) is a constituent of cellular membranes, while ceramides (Cer) produced from SM on plasma membranes serve as a lipid mediator that regulates cell proliferation, differentiation, and apoptosis. In the skin, SM also is a precursor of Cer, an important constituent of epidermal permeability barrier. We investigated the role of epidermal SM synthase (SMS)2, an isoform of SMS, which modulates SM and Cer levels on plasma membranes. Although SMS2-knockout (SMS2-KO) mice were not neonatal lethal, an ichthyotic phenotype with epidermal hyperplasia and hyperkeratosis was evident at birth, which persisted until 2 weeks of age. These mice showed abnormal lamellar body morphology and secretion, and abnormal extracellular lamellar membranes in the stratum corneum. These abnormalities were no longer evident by 4 weeks of age in SMS2-KO mice. Our study suggests that (1) exposure to a dry terrestrial environment initiates compensatory responses, thereby normalizing epidermal ichthyotic abnormalities and (2) that a nonlethal gene abnormality can cause an ichthyotic skin phenotype.
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Affiliation(s)
- Shota Sakai
- Laboratory of Biomembrane and Biofunctional Chemistry, Faculty of Advanced Life Science, Hokkaido University, Sapporo, Japan.,Department of Biochemistry & Cell Biology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Asami Makino
- Lipid Biology Laboratory, Advanced Science Institute, RIKEN Laboratory of Biochemistry, Asaka, Japan
| | - Akihito Nishi
- Laboratory of Biochemistry, Azabu University School of Veterinary Medicine, Sagamihara, Japan
| | - Takeshi Ichikawa
- Department of Life Science, Medical Research Institute, Kanazawa Medical University, Kahoku, Japan
| | - Tadashi Yamashita
- Laboratory of Biochemistry, Azabu University School of Veterinary Medicine, Sagamihara, Japan
| | - Makoto Taniguchi
- Department of Life Science, Medical Research Institute, Kanazawa Medical University, Kahoku, Japan
| | - Yoshihiro Tokudome
- Laboratory of Dermatological Physiology, Faculty of Pharmaceutical Sciences, Josai University, Sakado, Japan
| | - Yoshio Hirabayashi
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masashi Akiyama
- Laboratory of Dermatological Physiology, Faculty of Pharmaceutical Sciences, Josai University, Sakado, Japan
| | - Debra Crumrine
- Department of Dermatology, School of Medicine, University of California, San Francisco, California, USA.,Northern California Institute for Research and Education, Veterans Affairs Medical Center, San Francisco, California, USA
| | - Yoshikazu Uchida
- Department of Dermatology, School of Medicine, University of California, San Francisco, California, USA.,Northern California Institute for Research and Education, Veterans Affairs Medical Center, San Francisco, California, USA
| | - Peter M Elias
- Department of Dermatology, School of Medicine, University of California, San Francisco, California, USA.,Northern California Institute for Research and Education, Veterans Affairs Medical Center, San Francisco, California, USA
| | - Tetsuya Tsuchida
- Department of Dermatology, Faculty of Medicine, Saitama Medical University, Moroyama, Japan
| | - Sumiko Hamanaka
- Department of Dermatology, Faculty of Medicine, Saitama Medical University, Moroyama, Japan
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Niwa R, Takai K, Taniguchi M. Nonrheumatoid Retro-Odontoid Pseudotumors: Characteristics, Surgical Outcomes, and Time-Dependent Regression After Posterior Fixation. Neurospine 2021; 18:177-187. [PMID: 33819944 PMCID: PMC8021830 DOI: 10.14245/ns.2040526.263] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 08/27/2020] [Accepted: 12/09/2020] [Indexed: 01/12/2023] Open
Abstract
Objective Although a retro-odontoid pseudotumor associated with rheumatoid arthritis is a well-known clinical entity, little is known about retro-odontoid pseudotumors not associated with rheumatoid arthritis due to their rarity.
Methods Between 2006 and 2019, consecutive patients with nonrheumatoid pseudotumors were included and retrospectively compared with patients with rheumatoid pseudotumors.
Results Nineteen patients had nonrheumatoid pseudotumors (mean age, 73 ± 6 years; male, 53%). All had cervical lesions including ossified anterior and posterior longitudinal ligaments with a history of cervical surgery in 5. The mean thickness of the pseudotumors at diagnosis was 8.1 mm (range, 4.2–17.2 mm). Pseudotumor thickness had a significant negative correlation with the atlantodental interval (p = 0.008) and the subaxial range of motion (p = 0.049). In comparison with 7 rheumatoid pseudotumor patients, nonrheumatoid pseudotumor patients were older (p = 0.042), had a higher proportion of males (p = 0.023), had a smaller atlantodental interval (p = 0.007), and had larger pseudotumors at diagnosis (p = 0.030). Of the 19 patients, 18 received posterior fixation with or without C1 laminectomy, while the other received C1 laminectomy alone. The percent pseudotumor thickness at follow-up to those at diagnosis was 91%, 77%, 68%, 46%, 58%, and 49% at 1, 3, 6, 12, 24, and 36 months after surgery, respectively.
Conclusion This study revealed markedly clinical and radiological differences between nonrheumatoid and rheumatoid pseudotumors. The main etiology for nonrheumatoid pseudotumors was subaxial cervical degeneration and ossified lesions. There were good outcomes following posterior fixation and time-dependent pseudotumor regression within 12 months.
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Affiliation(s)
- Ryoko Niwa
- Department of Neurosurgery, Tokyo Metropolitan Neurological Hospital, Tokyo, Japan
| | - Keisuke Takai
- Department of Neurosurgery, Tokyo Metropolitan Neurological Hospital, Tokyo, Japan
| | - Makoto Taniguchi
- Department of Neurosurgery, Tokyo Metropolitan Neurological Hospital, Tokyo, Japan
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Watanabe A, Togi M, Koya T, Taniguchi M, Sakamoto T, Iwabuchi K, Kato T, Shimodaira S. Identification of CD56 dim subpopulation marked with high expression of GZMB/PRF1/PI-9 in CD56 + interferon-α-induced dendritic cells. Genes Cells 2021; 26:313-327. [PMID: 33662167 DOI: 10.1111/gtc.12844] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 02/15/2021] [Accepted: 02/28/2021] [Indexed: 01/08/2023]
Abstract
As the sentinels of innate and adaptive immune system, dendritic cells (DCs) have been considered to hold a great promise for medical application. Among the diverse types of DCs, monocyte-derived DCs (mo-DCs) generated in vitro have been most commonly employed. We have been improving the culture protocol and devised a protocol to produce mature interferon-α-induced DCs (IFN-DCs), hereinafter called (mat)IFN-DCs. While exploring the relationship between the expression of CD56 and the cytotoxic activity of (mat)IFN-DCs, we unexpectedly found that sorting of (mat)IFN-DCs with CD56 antibody-coated microbeads (MB) resulted in fractionating cells with tumoricidal activity into the flow-through (FT) but not MB-bound fraction. We uncovered that the FT fraction contains cells expressing low but substantial level of CD56. Moreover, those cells express granzyme B (GrB), perforin (PFN), and serpin B9 at high levels. By employing a specific inhibitor of PFN, we confirmed that direct tumoricidal activity relies on the GrB/PFN pathway. We designated subpopulation in FT fraction as CD56dim and that in CD56 positively sorted fraction as CD56bright , respectively. This is the first time, to our knowledge, to identify subpopulations of CD56-positive IFN-DCs with distinct tumoricidal activity which is ascribed to high expression of the components of GrB/PFN pathway.
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Affiliation(s)
- Asuka Watanabe
- Department of Regenerative Medicine, School of Medicine, Kanazawa Medical University, Kahoku-gun, Japan
| | - Misa Togi
- Department of Regenerative Medicine, School of Medicine, Kanazawa Medical University, Kahoku-gun, Japan.,Division of Stem Cell Medicine, Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, Kahoku-gun, Japan
| | - Terutsugu Koya
- Department of Regenerative Medicine, School of Medicine, Kanazawa Medical University, Kahoku-gun, Japan
| | - Makoto Taniguchi
- Division of Genome Damage Response Research, Department of Life Science, Medical Research Institute, Kanazawa Medical University, Kahoku-gun, Japan
| | - Takuya Sakamoto
- Department of Regenerative Medicine, School of Medicine, Kanazawa Medical University, Kahoku-gun, Japan
| | - Kuniyoshi Iwabuchi
- Division of Genome Damage Response Research, Department of Life Science, Medical Research Institute, Kanazawa Medical University, Kahoku-gun, Japan.,Department of Biochemistry I, School of Medicine, Kanazawa Medical University, Kahoku-gun, Japan
| | - Tomohisa Kato
- Division of Stem Cell Medicine, Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, Kahoku-gun, Japan
| | - Shigetaka Shimodaira
- Department of Regenerative Medicine, School of Medicine, Kanazawa Medical University, Kahoku-gun, Japan.,Division of Stem Cell Medicine, Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, Kahoku-gun, Japan
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31
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Do LTK, Wittayarat M, Sato Y, Chatdarong K, Tharasanit T, Techakumphu M, Hirata M, Tanihara F, Taniguchi M, Otoi T. Comparison of Blastocyst Development between Cat-Cow and Cat-Pig Interspecies Somatic Cell Nuclear Transfer Embryos Treated with Trichostatin A. BIOL BULL+ 2021. [DOI: 10.1134/s1062359021020035] [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: 11/23/2022]
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32
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Zhang X, Sakamoto W, Canals D, Ishibashi M, Matsuda M, Nishida K, Toyoshima M, Shigeta S, Taniguchi M, Senkal CE, Okazaki T, Yaegashi N, Hannun YA, Nabe T, Kitatani K. Ceramide synthase 2-C 24:1 -ceramide axis limits the metastatic potential of ovarian cancer cells. FASEB J 2021; 35:e21287. [PMID: 33423335 PMCID: PMC8237407 DOI: 10.1096/fj.202001504rr] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 11/28/2020] [Accepted: 12/03/2020] [Indexed: 12/23/2022]
Abstract
Regulation of sphingolipid metabolism plays a role in cellular homeostasis, and dysregulation of these pathways is involved in cancer progression. Previously, our reports identified ceramide as an anti-metastatic lipid. In the present study, we investigated the biochemical alterations in ceramide-centered metabolism of sphingolipids that were associated with metastatic potential. We established metastasis-prone sublines of SKOV3 ovarian cancer cells using an in vivo selection method. These cells showed decreases in ceramide levels and ceramide synthase (CerS) 2 expression. Moreover, CerS2 downregulation in ovarian cancer cells promoted metastasis in vivo and potentiated cell motility and invasiveness. Moreover, CerS2 knock-in suppressed the formation of lamellipodia required for cell motility in this cell line. In order to define specific roles of ceramide species in cell motility controlled by CerS2, the effect of exogenous long- and very long-chain ceramide species on the formation of lamellipodia was evaluated. Treatment with distinct ceramides increased cellular ceramides and had inhibitory effects on the formation of lamellipodia. Interestingly, blocking the recycling pathway of ceramides by a CerS inhibitor was ineffective in the suppression of exogenous C24:1 -ceramide for the formation of lamellipodia. These results suggested that C24:1 -ceramide, a CerS2 metabolite, predominantly suppresses the formation of lamellipodia without the requirement for deacylation/reacylation. Moreover, knockdown of neutral ceramidase suppressed the formation of lamellipodia concomitant with upregulation of C24:1 -ceramide. Collectively, the CerS2-C24:1 -ceramide axis, which may be countered by neutral ceramidase, is suggested to limit cell motility and metastatic potential. These findings may provide insights that lead to further development of ceramide-based therapy and biomarkers for metastatic ovarian cancer.
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Affiliation(s)
- Xuewei Zhang
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Wataru Sakamoto
- Department of Medicine, Stony Brook Cancer Center, Stony Brook, NY, USA
| | - Daniel Canals
- Department of Medicine, Stony Brook Cancer Center, Stony Brook, NY, USA
| | - Masumi Ishibashi
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Masaya Matsuda
- Laboratory of Immunopharmacology, Faculty of Pharmaceutical Science, Setsunan University, Osaka, Japan
| | - Kentaro Nishida
- Department of Integrative Pharmaceutical Sciences, Faculty of Pharmaceutical Science, Setsunan University, Osaka, Japan
| | - Masafumi Toyoshima
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Shogo Shigeta
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Makoto Taniguchi
- Medical Research Institute, Kanazawa Medical University, Ishikawa, Japan
| | - Can E. Senkal
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University, VA, USA
| | - Toshiro Okazaki
- Medical Research Institute, Kanazawa Medical University, Ishikawa, Japan
- Department of Hematology and Immunology, Kanazawa Medical University, Ishikawa, Japan
| | - Nobuo Yaegashi
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Yusuf A. Hannun
- Department of Medicine, Stony Brook Cancer Center, Stony Brook, NY, USA
- Stony Brook Cancer Center, Stony Brook University, Stony Brook, NY, USA
- Department of Biochemistry, Stony Brook University, Stony Brook, NY, USA
| | - Takeshi Nabe
- Laboratory of Immunopharmacology, Faculty of Pharmaceutical Science, Setsunan University, Osaka, Japan
| | - Kazuyuki Kitatani
- Laboratory of Immunopharmacology, Faculty of Pharmaceutical Science, Setsunan University, Osaka, Japan
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Kariyama N, Sakata-Haga H, Tsukada T, Shimada H, Taniguchi M, Hatta T. Rapid bone staining with hair removal (RAP-B/HR): a non-destructive and rapid whole-mount bone staining protocol optimized for adult hairy mice. Sci Rep 2021; 11:1950. [PMID: 33479385 PMCID: PMC7820006 DOI: 10.1038/s41598-021-81616-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 01/01/2021] [Indexed: 11/16/2022] Open
Abstract
We developed a non-destructive and rapid whole-mount bone staining method for small fish, Xenopus laevis, and rodent fetuses (RAP-B). RAP-B does not require skin or soft tissue removal. However, RAP-B requires hair removal from hairy animals, such as adult mice and rats. In the present study, we investigated hair removal chemical treatments that did not result in soft tissue destruction. The hair removal effectiveness was investigated using a calcium mercaptoacetate or sodium mercaptoacetate solution on skin fragments obtained from the back of adult mice. A mixture of 2% sodium mercaptoacetate in 3% potassium hydroxide was found to be the most effective in complete hair removal from the skin. Using this hair removal treatment as a pretreatment for RAP-B, the preparation of fast-acting artifact-free whole-mount bone staining was possible without skin and soft tissue removal (RAP-B/HR). We performed a seamless observation from a low magnification wide-view to a high magnification without artifactacting artifacts using fluorescence zoom microscopy. Therefore, the combination of RAP-B/HR and fluorescent zoom microscopy is a novel platform for three-dimensional, wide-field, high-resolution pathological anatomical analysis.
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Affiliation(s)
- Nobuo Kariyama
- Department of Anatomy, Kanazawa Medical University, Ishikawa, Japan.,Department of Physical Therapy, Kanazawa Rehabilitation Academy, Ishikawa, Japan
| | | | - Tsuyoshi Tsukada
- Department of Anatomy, Kanazawa Medical University, Ishikawa, Japan.,Department of Neurosurgery, Kanazawa Medical University, Ishikawa, Japan
| | - Hiroki Shimada
- Department of Medical Science, Kanazawa Medical University, Ishikawa, Japan
| | - Makoto Taniguchi
- Department of Life Science, Medical Research Institute, Kanazawa Medical University, Ishikawa, Japan
| | - Toshihisa Hatta
- Department of Anatomy, Kanazawa Medical University, Ishikawa, Japan.
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Miyagawa K, Yamanaka S, Isobe H, Shoji M, Kawakami T, Taniguchi M, Okumura M, Yamaguchi K. Electronic and spin structures of CaMn 4O x clusters in the S 0 state of the oxygen evolving complex of photosystem II. Domain-based local pair natural orbital (DLPNO) coupled-cluster (CC) calculations using optimized geometries and natural orbitals (UNO) by hybrid density functional theory (HDFT) calculations. Phys Chem Chem Phys 2021; 22:27191-27205. [PMID: 33226053 DOI: 10.1039/d0cp04762g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Domain-based local pair natural orbital (DLPNO) coupled cluster single and double (CCSD) with triple perturbation (T) correction methods were performed to elucidate the relative stabilities of ten different intermediate structures of the CaMn4Ox cluster in the S0 state of the oxygen evolving complex (OEC) of photosystem II (PSII). Full geometry optimizations of all the S0 intermediates were performed by the UB3LYP-D3/Def2-TZVP methods, providing the assumed geometrical structures and starting natural orbitals (UNO) for DLPNO-CCSD(T)/Def2TZVP calculations. The effective exchange integrals (J) for the spin Hamiltonian models for the ten intermediates were obtained by the UB3LYP/Def2-TZVP calculations followed by the general spin projections. DLPNO-CCSD(T) calculations followed by the CBS extrapolation procedure elucidated that the (II, III, IV, IV) and (III, III, III, IV) valence states in the CaMn4O5 cluster of the OEC of the PS II were nearly degenerated in energy in the S0 state, indicating an important role of dynamical electron correlation effects for the valence and spin fluctuations in strongly correlated electron systems (SCESs) consisting of 3d transition metals.
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Affiliation(s)
- K Miyagawa
- Institute for Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan.
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35
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Takai K, Taniguchi M. Superficial siderosis of the central nervous system associated with ventral dural defects: bleeding from the epidural venous plexus. J Neurol 2021; 268:1491-1494. [PMID: 33389031 DOI: 10.1007/s00415-020-10319-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 11/15/2020] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Superficial siderosis of the central nervous system is a rare intractable disease induced by chronic subarachnoid hemorrhage. Neurological deficits, such as cerebellar ataxia and hearing difficulties, gradually progress if left undiagnosed. Hemosiderin deposition is irreversible because standard medical treatment has not yet been established. Interventions at the source of bleeding may be the key to a preferable outcome of treatment for chronic subarachnoid hemorrhage; however, the source is not clear in many cases. METHODS Among the consecutive cases diagnosed with a spontaneous cerebrospinal fluid (CSF) leak, cases of superficial siderosis associated with a CSF leak due to a ventral dural defect were retrospectively analyzed. RESULTS Among 77 cases of a CSF leak, 7 cases (9%) of superficial siderosis were identified (median age of 59 years, male, 4 cases). Defects were diagnosed on 1-mm sliced fast imaging employing steady-state acquisition MRI (n = 5), conventional myelographic CT (n = 1), or dynamic myelographic CT (n = 1) at high thoracic levels (T1-T4). All defects were repaired by direct neurosurgery. During surgery, continuous bleeding from the epidural veins of the internal vertebral venous plexus was identified as the source of subarachnoid hemorrhage. Epidural CSF pulsations through the defect prevented clot formation by the epidural veins. Dural repair stopped free communication between the subarachnoid and epidural spaces, leading to the disappearance of chronic subarachnoid hemorrhage. CONCLUSION Bleeding from the epidural venous plexus may be the cause of superficial siderosis associated with ventral dural defects. Neurosurgical repair may stop the progression of this condition.
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Affiliation(s)
- Keisuke Takai
- Department of Neurosurgery, Tokyo Metropolitan Neurological Hospital, 2-6-1 Musashidai, Fuchu, Tokyo, 183-0042, Japan.
| | - Makoto Taniguchi
- Department of Neurosurgery, Tokyo Metropolitan Neurological Hospital, 2-6-1 Musashidai, Fuchu, Tokyo, 183-0042, Japan
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36
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Matsuhashi A, Takai K, Taniguchi M. Microsurgical anatomy and treatment of dural defects in spontaneous spinal cerebrospinal fluid leaks. J Neurosurg Spine 2020:1-9. [PMID: 33186904 DOI: 10.3171/2020.6.spine20487] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 06/29/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Spontaneous spinal CSF leaks are caused by abnormalities of the spinal dura mater. Although most cases are treated conservatively or with an epidural blood patch, some intractable cases require neurosurgical treatment. However, previous reports are limited to a small number of cases. Preoperative detection and localization of spinal dural defects are difficult, and surgical repair of these defects is technically challenging. The authors present the anatomical characteristics of dural defects and surgical techniques in treating spontaneous CSF leaks. METHODS Among the consecutive patients who were diagnosed with spontaneous CSF leaks at the authors' institution between 2010 and 2020, those who required neurosurgical treatment were included in the study. All patients' clinical information, radiological studies, surgical notes, and outcomes were reviewed retrospectively. Outcomes of two different procedures in repairing dural defects were compared. RESULTS Among 77 patients diagnosed with spontaneous CSF leaks, 21 patients (15 men; mean age 57 years) underwent neurosurgery. Dural defects were detected by FIESTA MRI in 7 patients, by CT myelography in 12, by digital subtraction myelography in 1, and by dynamic CT myelography in 1. The spinal levels of the defects were localized at the cervicothoracic junction in 16 patients (76%) and thoracolumbar junction in 4 (19%). Intraoperative findings revealed that the dural defects were small, circumscribed longitudinal slits located at the ventral aspect of the dura mater. The median dural defect size was 5 × 2 mm. The presence of dural defects at the thoracolumbar junction was associated with manifestation of an altered mental status, which was an unusual manifestation of CSF leaks (p = 0.003). Eight patients were treated via the posterior transdural approach with watertight primary sutures of the ventral defects, and 13 were treated with muscle or fat grafting. Regardless of the two different procedures, postoperative MRI showed either complete disappearance or significant reduction of the extradural CSF collection. No patient experienced postoperative neurological deficits. Clinical symptoms improved or stabilized in 20 patients with a median follow-up of 12 months. CONCLUSIONS Dural defects in spontaneous CSF leaks were small, circumscribed longitudinal slits located ventral to the spinal cord at either the cervicothoracic or thoracolumbar junction. Muscle/fat grafting may be an alternative treatment to watertight primary sutures of ventral dural defects with a good outcome.
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Takai K, Endo T, Yasuhara T, Seki T, Watanabe K, Tanaka Y, Kurokawa R, Kanaya H, Honda F, Itabashi T, Ishikawa O, Murata H, Tanaka T, Nishimura Y, Eguchi K, Takami T, Watanabe Y, Nishida T, Hiramatsu M, Ohtonari T, Yamaguchi S, Mitsuhara T, Matsui S, Uchikado H, Hattori G, Yamahata H, Taniguchi M. Neurosurgical versus endovascular treatment of spinal dural arteriovenous fistulas: a multicenter study of 195 patients. J Neurosurg Spine 2020:1-8. [PMID: 33186917 DOI: 10.3171/2020.6.spine20309] [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: 03/04/2020] [Accepted: 06/29/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE The purpose of the present study was to compare the treatment success rates of primary neurosurgical and endovascular treatments in patients with spinal dural arteriovenous fistulas (dAVFs). METHODS Data from 199 consecutive patients with thoracic and lumbosacral spinal dAVFs were collected from 18 centers. Angiographic and clinical findings, the rate of initial treatment failure or recurrence by procedures, risk factors for treatment failure, complications, and neurological outcomes were statistically analyzed. RESULTS Spinal dAVFs were frequently detected in the thoracic region (81%), fed by a single feeder (86%), and shunted into an intradural vein via the dura mater. The fistulous connection between the feeder(s) and intradural vein was located at a single spinal level in 195 patients (98%) and at 2 independent levels in 4 patients (2%). Among the neurosurgical (n = 145), and endovascular (n = 50) treatment groups of single dAVFs (n = 195), the rate of initial treatment failure or recurrence was significantly higher in the index endovascular treatment group (0.68% and 36%). A multivariate analysis identified endovascular treatment as an independent risk factor with significantly higher odds of initial treatment failure or recurrence (OR 69; 95% CI 8.7-546). The rate of complications did not significantly differ between the two treatment groups (4.1% for neurosurgical vs 4.0% for endovascular treatment). With a median follow-up of 26 months, improvements of ≥ 1 point in the modified Rankin Scale (mRS) score and Aminoff-Logue gait and Aminoff-Logue micturition grades were observed in 111 (56%), 121 (61%), and 79 (40%) patients, respectively. Independent risk factors for lack of improvement in the Aminoff-Logue gait grades were multiple treatments due to initial treatment failure or recurrence (OR 3.1) and symptom duration (OR 1.02). CONCLUSIONS Based on data obtained from the largest and most recently assessed multicenter cohort, the present study shows that primary neurosurgery is superior to endovascular treatment for the complete obliteration of spinal dAVFs by a single procedure.
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Affiliation(s)
- Keisuke Takai
- 8Department of Neurosurgery, Tokyo Metropolitan Neurological Hospital, Tokyo
| | - Toshiki Endo
- 2Department of Neurosurgery, Kohnan Hospital, Sendai
| | - Takao Yasuhara
- 13Department of Neurosurgery, Okayama University Graduate School of Medicine, Okayama
| | - Toshitaka Seki
- 1Department of Neurosurgery, Hokkaido University Hospital, Sapporo
| | - Kei Watanabe
- 3Department of Orthopaedic Surgery, Niigata University Medical and Dental Hospital, Niigata
| | - Yuki Tanaka
- 3Department of Orthopaedic Surgery, Niigata University Medical and Dental Hospital, Niigata
| | - Ryu Kurokawa
- 4Department of Neurosurgery, Dokkyo Medical University Hospital, Tochigi
| | - Hideaki Kanaya
- 4Department of Neurosurgery, Dokkyo Medical University Hospital, Tochigi
| | - Fumiaki Honda
- 5Department of Neurosurgery, Gunma University Hospital, Gunma
| | - Takashi Itabashi
- 6Department of Orthopaedic Surgery, Japanese Red Cross Narita Hospital, Chiba
| | - Osamu Ishikawa
- 7Department of Neurosurgery, The University of Tokyo Hospital, Tokyo
| | - Hidetoshi Murata
- 9Department of Neurosurgery, Yokohama City University Hospital, Yokohama
| | - Takahiro Tanaka
- 9Department of Neurosurgery, Yokohama City University Hospital, Yokohama
| | - Yusuke Nishimura
- 10Department of Neurosurgery, Nagoya University Hospital, Nagoya
| | - Kaoru Eguchi
- 10Department of Neurosurgery, Nagoya University Hospital, Nagoya
| | - Toshihiro Takami
- 11Department of Neurosurgery, Osaka City University Graduate School of Medicine, Osaka
| | - Yusuke Watanabe
- 11Department of Neurosurgery, Osaka City University Graduate School of Medicine, Osaka
| | - Takeo Nishida
- 12Department of Neurosurgery, Osaka University Graduate School of Medicine, Osaka
| | - Masafumi Hiramatsu
- 13Department of Neurosurgery, Okayama University Graduate School of Medicine, Okayama
| | - Tatsuya Ohtonari
- 14Department of Spinal Surgery, Brain Attack Center, Ota Memorial Hospital, Hiroshima
| | - Satoshi Yamaguchi
- 15Department of Neurosurgery, Hiroshima University Hospital, Hiroshima
| | | | - Seishi Matsui
- 16Department of Neurosurgery, Ehime University Hospital, Ehime
| | - Hisaaki Uchikado
- 17Department of Neurosurgery, Kurume University Hospital, Fukuoka; and
| | - Gohsuke Hattori
- 17Department of Neurosurgery, Kurume University Hospital, Fukuoka; and
| | - Hitoshi Yamahata
- 18Department of Neurosurgery, Kagoshima University Hospital, Kagoshima, Japan
| | - Makoto Taniguchi
- 8Department of Neurosurgery, Tokyo Metropolitan Neurological Hospital, Tokyo
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Yamazawa E, Tanaka S, Genta N, Hiroko M, Umeda T, Hana T, Takami T, Nakanishi Y, Taniguchi M, Takai K, Komori T, Ichimura K, Fukuoka K, Takayanagi S, Aburatani H, Saito N. PATH-33. EPIGENOMIC ANALYSIS OF SPINAL EPENDYMOMA. Neuro Oncol 2020. [DOI: 10.1093/neuonc/noaa215.714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
BACKGROUND
Ependymomas commonly occur in the fourth ventricle and the spinal cord. Gross total resection, age and WHO grade are known prognostic factors. Ependymomas are currently classified into 9 distinct subgroups by DNA methylation profile analysis. Spinal cord ependymoma is distinct from other subgroups. To investigate heterogeneity within spinal cord ependymoma, we examined DNA methylation profiles.
MATERIALS AND METHODS
We used Infinium MethylationEPIC array (illumina) to obtain DNA methylation data from frozen specimens of spinal ependymoma resected at the University of Tokyo, Osaka City University, and Tokyo Metropolitan Neurological Hospital. Japan Pediatric Molecular Neuro-Oncology Group provided methylation data for 11 reported cases. Cluster analysis was performed using Cluster3.0.
RESULTS
We analyzed 34 patients, 21 male and 13 female, aged from 18 to 76 years (median 50.5 years), including 2 cases with neurofibromatosis type 2. WHO grade was grade_3 in 2 cases and grade_2 in others. Clustering of the DNA methylation data showed that WHO grade_3 cases tended to be classified into a subgroup distinct from other cases.
CONCLUSION
This is the largest DNA methylation profiling study on spinal cord ependymoma to date. The study may suggest a new subgroup correlated with higher WHO grade.
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Affiliation(s)
- Erika Yamazawa
- Department of Neurosurgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shota Tanaka
- Department of Neurosurgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Nagae Genta
- Genome Science at the Research Center for Advanced Science and Technology, the University of Tokyo, Tokyo, Japan
| | - Meguro Hiroko
- Genome Science at the Research Center for Advanced Science and Technology, the University of Tokyo, Tokyo, Japan
| | - Takayoshi Umeda
- Genome Science at the Research Center for Advanced Science and Technology, the University of Tokyo, Tokyo, Japan
| | - Taijun Hana
- Department of Neurosurgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Toshihiro Takami
- Department of Neurosurgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Yuta Nakanishi
- Department of Neurosurgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Makoto Taniguchi
- Department of Neurosurgery, Tokyo Metropolitan Neurological Hospital, Tokyo, Japan
| | - Keisuke Takai
- Department of Neurosurgery, Tokyo Metropolitan Neurological Hospital, Tokyo, Japan
| | - Takashi Komori
- Department of Laboratory Medicine and Pathology, Tokyo Metropolitan Neurological Hosp., Tokyo, Japan
| | - Kouichi Ichimura
- Division of Brain Tumor Translational Research, National Cancer Center Research Institute, Tokyo, Japan
| | - Kohei Fukuoka
- Department of Hematology/Oncology, Saitama Children’s Medical Center, Saitama, Japan
| | - Shunsaku Takayanagi
- Department of Neurosurgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hiroyuki Aburatani
- Genome Science at the Research Center for Advanced Science and Technology, the University of Tokyo, Tokyo, Japan
| | - Nobuhito Saito
- Department of Neurosurgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
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Arai S, Takai K, Taniguchi M. The algorithm for diagnosis and management of intracranial hypotension with coma: Report of two cases. Surg Neurol Int 2020; 11:267. [PMID: 33024605 PMCID: PMC7533098 DOI: 10.25259/sni_460_2020] [Citation(s) in RCA: 3] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 08/07/2020] [Indexed: 11/18/2022] Open
Abstract
Background: Spontaneous intracranial hypotension (SIH) is caused by spontaneous cerebrospinal fluid (CSF) leaks that can be treated in most cases with an epidural blood patch (EBP). However, some patients, who develop severe brain sagging, can neurologically deteriorate, and in occasional instances, which become comatose. Here, with the presentation of two cases, and a review of the literature, we have set guidelines for diagnosing SIH along with recommendations for its management. Case Description: We reviewed two cases of SIH. Both patients became comatose due to a CSF leak associated with a tear in the spinal dura diagnosed on myelo-CT studies. As targeted EBP failed to achieve sustained improvement, direct operative repair of the dural tears was warranted (video presentation). Conclusion: After reviewing two cases of SIH and the literature, we developed an algorithm for the diagnosis and management of SIH. To avoid deterioration to a comatose status, we recommend the early performance of myelo- CT studies to identify the location of the dural leak, followed by early dural repair.
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Affiliation(s)
- Shintaro Arai
- Department of Neurosurgery, Tokyo Metropolitan Neurological Hospital, Fuchu, Tokyo, Japan
| | - Keisuke Takai
- Department of Neurosurgery, Tokyo Metropolitan Neurological Hospital, Fuchu, Tokyo, Japan
| | - Makoto Taniguchi
- Department of Neurosurgery, Tokyo Metropolitan Neurological Hospital, Fuchu, Tokyo, Japan
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Takai K, Taniguchi M. Modified dorsal root entry zone lesioning for pain relief in cervical root avulsion injury. Neurosurgical Focus: Video 2020; 3:V11. [PMID: 36285270 PMCID: PMC9542433 DOI: 10.3171/2020.7.focvid2020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 07/01/2020] [Indexed: 11/18/2022]
Abstract
Neuropathic pain in the upper extremity due to cervical root avulsion injury is refractory to medical treatments. Superficial layers in the posterior horn of spinal gray matter, including the substantia gelatinosa, are the main target of dorsal root entry zone (DREZ) lesioning, which has been the most effective surgical treatment for the relief of intractable pain; however, residual pain and a decrease in pain relief during the long-term follow-up period have been reported. Based on pain topography in the most recent basic studies, the conventional DREZ lesioning procedure was modified to improve clinical outcomes. The video can be found here: https://youtu.be/PyaAGmAE7Og
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Taniguchi M, Okazaki T. Ceramide/Sphingomyelin Rheostat Regulated by Sphingomyelin Synthases and Chronic Diseases in Murine Models. J Lipid Atheroscler 2020; 9:380-405. [PMID: 33024732 PMCID: PMC7521967 DOI: 10.12997/jla.2020.9.3.380] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [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: 06/09/2020] [Revised: 07/16/2020] [Accepted: 07/19/2020] [Indexed: 12/16/2022] Open
Abstract
Ceramide and sphingomyelin (SM) are major components of the double membrane-bound sphingolipids. Ceramide is an essential bioactive lipid involved in numerous cell processes including apoptosis, necrosis, and autophagy-dependent cell death. Inversely, SM regulates opposite cellular processes such as proliferation and migration by changing receptor-mediated signal transduction in the lipid microdomain. SM is generated through a transfer of phosphocholine from phosphatidylcholine to ceramide by SM synthases (SMSs). Research during the past several decades has revealed that the ceramide/SM balance in cellular membranes regulated by SMSs is important to decide the cell fate, survival, and proliferation. In addition, recent experimental studies utilizing SMS knockout mice and murine disease models provide evidence that SMS-regulated ceramide/SM balance is involved in human diseases. Here, we review the basic structural and functional characteristics of SMSs and focus on their cellular functions through the regulation of ceramide/SM balance in membrane microdomains. In addition, we present the pathological or physiological implications of SMSs by analyzing their role in SMS-knockout mice and human disease models. This review finally presents evidence indicating that the regulation of ceramide/SM balance through SMS could be a therapeutic target for human disorders.
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Affiliation(s)
- Makoto Taniguchi
- Department of Life Science, Medical Research Institute, Kanazawa Medical University, Kahoku, Japan
| | - Toshiro Okazaki
- Research Institute for Bioresources and Biotechnology, Kanazawa Prefectural University, Nonoichi, Japan
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Takase Y, Doi H, Iwasaki T, Hashimoto M, Inaba R, Kozuki T, Taniguchi M, Tabuchi Y, Kitagori K, Akizuki S, Murakami K, Nakashima R, Yoshifuji H, Yamamoto W, Tanaka M, Ohmura K. THU0285 ANALYSIS OF THE RELATIONSHIP BETWEEN ORGAN DAMAGE AND QUALITY OF LIFE IN PATIENTS WITH SYSTEMIC LUPUS ERYTHEMATOSUS. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.3027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Systemic lupus erythematosus (SLE) is an autoimmune disease that can not only cause systemic symptoms, such as fever and arthritis, but can also damage important organs, such as those of the central nervous system and the kidneys. Prevention of irreversible organ damage is important for better prognosis [1]. Additionally, the importance of maintaining the quality of life (QOL) of patients has recently been emphasized. However, only a few studies have examined the relationship between irreversible organ damage and patient QOL.Objectives:To assess the relationship between organ damage and QOL, and to survey which organs have more significant effects on QOL.Methods:We conducted a questionnaire-based survey of 183 patients with SLE at Kyoto University Hospital from September to December 2019. We used the SLICC/ACR Damage Index (SDI) to evaluate organ damage [2]. The following five scales were employed to evaluate QOL: the physical (PCS) and mental component summary (MCS) of the Medical Outcome Study (MOS) 36-Item Short-Form Health Survey version 2.0 (SF-36v2) [3], health (HRQOL) and non-health-related QOL (N-HRQOL) of LupusPRO [4], and SLE Symptom Checklist (SSC) [5].Results:Linear regression analysis showed significant correlation between the SDI score and all QOL scales except for N-HRQOL, suggesting negative effects of organ damage on QOL (Table 1). Next, we analysed whether there was a significant difference in the SF-36 score between those who were positive and negative for each SDI item (41 in total), using the Wilcoxon rank sum test. Muscle atrophy or weakness (p= 3.0×10-10), osteoporosis with fracture or vertebral collapse (p= 9.7×10-8), claudication (p= 7.4×10-5), and cognitive impairment or major psychosis (p= 9.9×10-5) significantly correlated (p< 1.2×10-3) with PCS, and scarring chronic alopecia (p= 3.4×10-4) with MCS (Table 2). In addition, the five SDI items significantly correlated with the remaining three QOL scales (HRQOL, N-HRQOL, and SSC;p< 0.05).Table 1.Relationship between the SDI score and QOLSF-36LupusPROSSCPCSMCSHRQOLN-HRQOLp-value<2.0×10-161.7×10-32.2×10-110.231.9×10-8Table 2.Relationship between each SDI item and the SF-36 score (p< 1.2×10-3SDI itemPCS scorep-valuePositive(Median (IQR))Negative(Median (IQR))Muscle atrophy/weakness33 (19-45)50 (43-54)3.0×10-10Osteoporosis with fracture/vertebral collapse24 (12-32)49 (38-54)9.7×10-8Claudication31 (19-35)49 (38-54)7.4×10-5Cognitive impairment/psychosis27 (17-33)49 (38-54)9.9×10-5SDI itemMCS scorep-valuePositive(Median (IQR))Negative(Median (IQR))Scarring chronic alopecia42 (29-51)49 (39-54)3.4×10-4Conclusion:We demonstrated that organ damage has negative effects on patient QOL, indicating the importance of preventing irreversible organ damage for maintaining QOL. Moreover, muscle atrophy/weakness, osteoporosis with fracture/vertebral collapse, claudication, cognitive impairment/major psychosis, and scarring chronic alopecia significantly correlated with QOL deterioration, suggesting that these items should be examined with special care in clinical practice.References:[1]Lopez R, et al. Rheumatology (Oxford). 2012; 51:491-498.[2]Gladman D, et al. Arthritis Rheum. 1996; 39:363-369.[3]Fukuhara S, et al. J Clin Epidemiol. 1998; 51:1037-1044.[4]Inoue M, et al. Lupus. 2017; 26:849-856.[5]Grootscholten C, et al. Qual Life Res. 2003; 12:635–644.Disclosure of Interests:Yudai Takase: None declared, Hiroshi Doi: None declared, Takeshi Iwasaki: None declared, Motomu Hashimoto Grant/research support from: Bristol-Myers Squibb, Eisai, and Eli Lilly and Company., Speakers bureau: Bristol-Myers Squibb and Mitsubishi Tanabe Pharma., Ryuta Inaba: None declared, Tomohiro Kozuki: None declared, Masashi Taniguchi: None declared, Yuya Tabuchi Paid instructor for: Astellas Pharma, GlaxoSmithKline, Mitsubishi Tanabe Pharma, and Nippon Shinyaku., Speakers bureau: AbbVie, Janssen Pharmaceutical, Mitsubishi Tanabe Pharma, Nippon Shinyaku, and Novartis Pharma. (Outside the field of the present study.), Koji Kitagori: None declared, Syuji Akizuki: None declared, Kosaku Murakami Speakers bureau: AbbVie, Eisai, and Mitsubishi Tanabe Pharma., Ran Nakashima Grant/research support from: Takeda Pharmaceutical. (Outside the field of the present study.), Speakers bureau: Astellas Pharma, Medical & Biological Laboratories, AstraZeneca, and Boehringer Ingelheim. (Outside the field of the present study.), Hajime Yoshifuji Grant/research support from: Astellas Pharma. (Outside the field of the present study.), Speakers bureau: Chugai Pharmaceutical. (Outside the field of the present study.), Wataru Yamamoto: None declared, Masao Tanaka Grant/research support from: AbbVie, Asahi Kasei Pharma, Astellas Pharma, Ayumi Pharmaceutical, Chugai Pharmaceutical, Eisai, Mitsubishi Tanabe Pharma, Taisho Pharmaceutical, and UCB Japan., Speakers bureau: AbbVie, Asahi Kasei Pharma, Astellas Pharma, Bristol-Myers Squibb, Chugai Pharmaceutical, Eisai, Eli Lilly and Company, Janssen Pharmaceutical, Mitsubishi Tanabe Pharma, Novartis Pharma, Pfizer, Taisho Pharmaceutical, Takeda Pharmaceutical, and UCB Japan., Koichiro Ohmura Grant/research support from: Astellas Pharma, AYUMI Pharmaceutical, Chugai Pharmaceutical, Daiichi Sankyo, Eisai, Japan Blood Products Organization, Mitsubishi Tanabe Pharma, Nippon Kayaku, Nippon Shinyaku, Sanofi, and Takeda Pharmaceutical., Speakers bureau: AbbVie, Actelion Pharmaceuticals Japan, Asahi Kasei Pharma, AYUMI Pharmaceutical, Bristol-Myers Squibb, Chugai Pharmaceutical, Eisai, Eli Lilly and Company, GlaxoSmithKline, Janssen Pharmaceutical, Mitsubishi Tanabe Pharma, Novartis Pharma, and Sanofi.
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Takai K, Endo T, Yasuhara T, Seki T, Watanabe K, Tanaka Y, Kurokawa R, Kanaya H, Honda F, Itabashi T, Ishikawa O, Murata H, Tanaka T, Nishimura Y, Eguchi K, Takami T, Watanabe Y, Nishida T, Hiramatsu M, Ohtonari T, Yamaguchi S, Mitsuhara T, Matsui S, Uchikado H, Hattori G, Horie N, Yamahata H, Taniguchi M. Microsurgical versus endovascular treatment of spinal epidural arteriovenous fistulas with intradural venous drainage: a multicenter study of 81 patients. J Neurosurg Spine 2020; 33:1-11. [PMID: 32330891 DOI: 10.3171/2020.2.spine191432] [Citation(s) in RCA: 7] [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: 11/30/2019] [Accepted: 02/18/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Spinal arteriovenous shunts are rare vascular lesions and are classified into 4 types (types I-IV). Due to rapid advances in neuroimaging, spinal epidural AVFs (edAVFs), which are similar to type I spinal dural AVFs (dAVFs), have recently been increasingly reported. These 2 entities have several important differences that influence the treatment strategy selected. The purposes of the present study were to compare angiographic and clinical differences between edAVFs and dAVFs and to provide treatment strategies for edAVFs based on a multicenter cohort. METHODS A total of 280 consecutive patients with thoracic and lumbosacral spinal dural arteriovenous fistulas (dAVFs) and edAVFs with intradural venous drainage were collected from 19 centers. After angiographic and clinical comparisons, the treatment failure rate by procedure, risk factors for treatment failure, and neurological outcomes were statistically analyzed in edAVF cases. RESULTS Final diagnoses after an angiographic review included 199 dAVFs and 81 edAVFs. At individual centers, 29 patients (36%) with edAVFs were misdiagnosed with dAVFs. Spinal edAVFs were commonly fed by multiple feeding arteries (54%) shunted into a single or multiple intradural vein(s) (91% and 9%) through a dilated epidural venous plexus. Preoperative modified Rankin Scale (mRS) and Aminoff-Logue gait and micturition grades were worse in patients with edAVFs than in those with dAVFs. Among the microsurgical (n = 42), endovascular (n = 36), and combined (n = 3) treatment groups of edAVFs, the treatment failure rate was significantly higher in the index endovascular treatment group (7.5%, 31%, and 0%, respectively). Endovascular treatment was found to be associated with significantly higher odds of initial treatment failure (OR 5.72, 95% CI 1.45-22.6). In edAVFs, the independent risk factor for treatment failure after microsurgery was the number of intradural draining veins (OR 17.9, 95% CI 1.56-207), while that for treatment failure after the endovascular treatment was the number of feeders (OR 4.11, 95% CI 1.23-13.8). Postoperatively, mRS score and Aminoff-Logue gait and micturition grades significantly improved in edAVFs with a median follow-up of 31 months. CONCLUSIONS Spinal epidural AVFs with intradural venous drainage are a distinct entity and may be classified as type V spinal vascular malformations. Based on the largest multicenter cohort, this study showed that primary microsurgery was superior to endovascular treatment for initial treatment success in patients with spinal edAVFs.
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Affiliation(s)
- Keisuke Takai
- 8Department of Neurosurgery, Tokyo Metropolitan Neurological Hospital, Tokyo
| | - Toshiki Endo
- 2Department of Neurosurgery, Kohnan Hospital, Sendai
| | - Takao Yasuhara
- 13Department of Neurosurgery, Okayama University Graduate School of Medicine, Okayama
| | - Toshitaka Seki
- 1Department of Neurosurgery, Hokkaido University Hospital, Sapporo
| | - Kei Watanabe
- 3Department of Orthopaedic Surgery, Niigata University Medical and Dental Hospital, Niigata
| | - Yuki Tanaka
- 3Department of Orthopaedic Surgery, Niigata University Medical and Dental Hospital, Niigata
| | - Ryu Kurokawa
- 4Department of Neurosurgery, Dokkyo Medical University Hospital, Tochigi
| | - Hideaki Kanaya
- 4Department of Neurosurgery, Dokkyo Medical University Hospital, Tochigi
| | - Fumiaki Honda
- 5Department of Neurosurgery, Gunma University Hospital, Gunma
| | - Takashi Itabashi
- 6Department of Orthopaedic Surgery, Japanese Red Cross Narita Hospital, Chiba
| | - Osamu Ishikawa
- 7Department of Neurosurgery, The University of Tokyo Hospital, Tokyo
| | - Hidetoshi Murata
- 9Department of Neurosurgery, Yokohama City University Hospital, Yokohama
| | - Takahiro Tanaka
- 9Department of Neurosurgery, Yokohama City University Hospital, Yokohama
| | - Yusuke Nishimura
- 10Department of Neurosurgery, Nagoya University Hospital, Nagoya
| | - Kaoru Eguchi
- 10Department of Neurosurgery, Nagoya University Hospital, Nagoya
| | - Toshihiro Takami
- 11Department of Neurosurgery, Osaka City University Graduate School of Medicine, Osaka
| | - Yusuke Watanabe
- 11Department of Neurosurgery, Osaka City University Graduate School of Medicine, Osaka
| | - Takeo Nishida
- 12Department of Neurosurgery, Osaka University Graduate School of Medicine, Osaka
| | - Masafumi Hiramatsu
- 13Department of Neurosurgery, Okayama University Graduate School of Medicine, Okayama
| | - Tatsuya Ohtonari
- 14Department of Spinal Surgery, Brain Attack Center, Ota Memorial Hospital, Hiroshima
| | - Satoshi Yamaguchi
- 15Department of Neurosurgery, Hiroshima University Hospital, Hiroshima
| | | | - Seishi Matsui
- 16Department of Neurosurgery, Ehime University Hospital, Ehime
| | - Hisaaki Uchikado
- 17Department of Neurosurgery, Kurume University Hospital, Fukuoka
| | - Gohsuke Hattori
- 17Department of Neurosurgery, Kurume University Hospital, Fukuoka
| | - Nobutaka Horie
- 18Department of Neurosurgery, Nagasaki University Hospital, Nagasaki; and
| | - Hitoshi Yamahata
- 19Department of Neurosurgery, Kagoshima University Hospital, Kagoshima, Japan
| | - Makoto Taniguchi
- 8Department of Neurosurgery, Tokyo Metropolitan Neurological Hospital, Tokyo
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Zhao S, Guo X, Taniguchi M, Kondo K, Yamada S, Gu C, Uramoto H. Detection of Mediastinal Lymph Node Metastases Using Indocyanine Green (ICG) Fluorescence Imaging in an Orthotopic Implantation Model. Anticancer Res 2020; 40:1875-1882. [PMID: 32234875 DOI: 10.21873/anticanres.14141] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 02/23/2020] [Accepted: 02/29/2020] [Indexed: 11/10/2022]
Abstract
BACKGROUND The method of quickly identifying metastatic mediastinal lymph nodes has become an urgent problem for lung cancer surgery. Indocyanine green (ICG) has the characteristic of being retained in or around the lymph nodes; its pharmacokinetic characteristics and optimal imaging time have not yet been elucidated. MATERIALS AND METHODS The IVIS Lumina Imaging System was used to detect near infrared (NIR) fluorescence signals at different ICG doses, times and excitation/emission wavelengths in vitro. An artificial lymphogenous metastatic model of squamous lung carcinoma was established in 32 SCID-CB17 mice using Ma44.3 cells. An intratracheal injection of 1.25 ml/kg ICG (1.25×10-2 mg/ml) was performed, then 780 nm Ex and 845 nm Em were used to visualize ICG at four different times. The metastatic mediastinal lymph nodes and the implanted local tumor site in the left lung were confirmed with bioluminescence and hematoxylin and eosin (H&E) staining of pathological specimens. RESULTS ICG had the strongest NIR fluorescence signal when using 780 nm Ex and 845 nm Em at 2 to 4 h after administrating 1.25×10-2 mg/ml ICG in vitro. Combined with pathological H&E examination, fluorescence imaging of ICG reflected true-positive mediastinal metastasis of the mediastinum at 0.5 h and 2 h after the injection of ICG in vivo. While true-positive local tumor growth at the site of implantation in the left lung was reflected within 4 h after the injection of ICG. CONCLUSION ICG was able to display the metastatic mediastinal lymph nodes within 2 h after endotracheal injection in an orthotopic squamous lung carcinoma implantation model.
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Affiliation(s)
- Shilei Zhao
- Department of Thoracic Surgery, The First Affiliated Hospital of Dalian Medical University, Liaoning, P.R. China.,Department of Thoracic Surgery, Kanazawa Medical University, Ishikawa, Japan
| | - Xin Guo
- Department of Pathology and Laboratory Medicine, Kanazawa Medical University, Ishikawa, Japan
| | - Makoto Taniguchi
- Department of Genome Damage Response Research, Kanazawa Medical University, Ishikawa, Japan
| | - Kazuya Kondo
- Department of Oncological Medical Services, The University of Tokushima, Tokushima, Japan
| | - Sohsuke Yamada
- Department of Pathology and Laboratory Medicine, Kanazawa Medical University, Ishikawa, Japan
| | - Chundong Gu
- Department of Thoracic Surgery, The First Affiliated Hospital of Dalian Medical University, Liaoning, P.R. China
| | - Hidetaka Uramoto
- Department of Thoracic Surgery, Kanazawa Medical University, Ishikawa, Japan
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Ito S, Arita M, Haruyama J, Feng B, Chen WC, Namatame H, Taniguchi M, Cheng CM, Bian G, Tang SJ, Chiang TC, Sugino O, Komori F, Matsuda I. Surface-state Coulomb repulsion accelerates a metal-insulator transition in topological semimetal nanofilms. Sci Adv 2020; 6:eaaz5015. [PMID: 32219169 PMCID: PMC7083614 DOI: 10.1126/sciadv.aaz5015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 12/30/2019] [Indexed: 06/10/2023]
Abstract
The emergence of quantization at the nanoscale, the quantum size effect (QSE), allows flexible control of matter and is a rich source of advanced functionalities. A QSE-induced transition into an insulating phase in semimetallic nanofilms was predicted for bismuth a half-century ago and has regained new interest with regard to its surface states exhibiting nontrivial electronic topology. Here, we reveal an unexpected mechanism of the transition by high-resolution angle-resolved photoelectron spectroscopy combined with theoretical calculations. Anomalous evolution and degeneracy of quantized energy levels indicate that increased Coulomb repulsion from the surface states deforms a quantum confinement potential with decreasing thickness. The potential deformation strongly modulates spatial distributions of quantized wave functions, which leads to acceleration of the transition beyond the original QSE picture. This discovery establishes a complete picture of the long-discussed transition and highlights a new class of size effects dominating nanoscale transport in systems with metallic surface states.
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Affiliation(s)
- S. Ito
- Institute for Solid State Physics (ISSP), The University of Tokyo, Kashiwa, Chiba, Japan
| | - M. Arita
- Hiroshima Synchrotron Radiation Center (HSRC), Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
| | - J. Haruyama
- Institute for Solid State Physics (ISSP), The University of Tokyo, Kashiwa, Chiba, Japan
| | - B. Feng
- Institute of Physics, Chinese Academy of Sciences, Beijing, China
| | - W.-C. Chen
- Department of Physics and Astronomy, National Tsing Hua University, Hsinchu, Taiwan, Republic of China
| | - H. Namatame
- Hiroshima Synchrotron Radiation Center (HSRC), Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
| | - M. Taniguchi
- Hiroshima Synchrotron Radiation Center (HSRC), Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
| | - C.-M. Cheng
- National Synchrotron Radiation Research Center (NSRRC), Hsinchu, Taiwan, Republic of China
| | - G. Bian
- Department of Physics and Astronomy, University of Missouri, Columbia, MO, USA
| | - S.-J. Tang
- Department of Physics and Astronomy, National Tsing Hua University, Hsinchu, Taiwan, Republic of China
- National Synchrotron Radiation Research Center (NSRRC), Hsinchu, Taiwan, Republic of China
| | - T.-C. Chiang
- Department of Physics and Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - O. Sugino
- Institute for Solid State Physics (ISSP), The University of Tokyo, Kashiwa, Chiba, Japan
| | - F. Komori
- Institute for Solid State Physics (ISSP), The University of Tokyo, Kashiwa, Chiba, Japan
| | - I. Matsuda
- Institute for Solid State Physics (ISSP), The University of Tokyo, Kashiwa, Chiba, Japan
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Taniguchi M, Ueda Y, Matsushita M, Nagaya S, Hashizume C, Arai K, Kabayama K, Fukase K, Watanabe K, Wardhani LO, Hayashi K, Okazaki T. Deficiency of sphingomyelin synthase 2 prolongs survival by the inhibition of lymphoma infiltration through ICAM-1 reduction. FASEB J 2020; 34:3838-3854. [PMID: 31970839 DOI: 10.1096/fj.201901783rr] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [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: 07/16/2019] [Revised: 12/10/2019] [Accepted: 12/23/2019] [Indexed: 12/31/2022]
Abstract
The tumor microenvironment (TME) formation involving host cells and cancer cells through cell adhesion molecules (CAMs) is essential for the multiple steps of cancer metastasis and growth. Sphingomyelin synthase 2 (SMS2) is involved in inflammatory diseases such as obesity and diabetes mellitus by regulation of the SM/ceramide balance. However, the involvement of SMS2 in TME formation and metastasis is largely unknown. Here, we report that SMS2-deficient (SMS2-KO) mice show suppressed the EL4 cell infiltration to liver and prolonged survival time. ICAM-1 was identified as a candidate for the inhibition of TME formation in immortalized mouse embryonic fibroblasts (tMEFs) from mRNA array analysis for CAMs. Reduced SM/ceramide balance in SMS2-KO tMEFs suppressed the attachment of EL4 cells through transcriptional reduction of ICAM-1 by the inhibition of NF-κB activation. TNF-α-induced NF-κB activation and subsequent induction of ICAM-1 were suppressed in SMS2-KO tMEFs but restored by SMS2 re-introduction. In the EL4 cell infiltration mouse model, EL4 injection increased ICAM-1 expression in WT liver but not in SMS2-KO mouse liver. Therefore, inhibition of SMS2 may be a therapeutic target to suppress the infiltration of malignant lymphoma.
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Affiliation(s)
- Makoto Taniguchi
- Department of Life Science, Medical Research Institute, Kanazawa Medical University, Kahoku, Japan
| | - Yoshibumi Ueda
- Faculty of Medicine, Department of Hematology and Immunology, Kanazawa Medical University, Kahoku, Japan.,Graduate School of Arts and Sciences, University of Tokyo, Tokyo, Japan
| | - Michiko Matsushita
- Department of Pathobiological Science and Technology, School of Health Science, University of Tottori, Tottori, Japan
| | - Shingo Nagaya
- Faculty of Medicine, Department of Hematology and Immunology, Kanazawa Medical University, Kahoku, Japan
| | - Chieko Hashizume
- Faculty of Medicine, Department of Hematology and Immunology, Kanazawa Medical University, Kahoku, Japan
| | - Kenta Arai
- Department of Chemistry, Graduate School of Science, Osaka University, Osaka, Japan
| | - Kazuya Kabayama
- Department of Chemistry, Graduate School of Science, Osaka University, Osaka, Japan.,Project Research Center, Graduate School of Science, Osaka University, Osaka, Japan
| | - Koichi Fukase
- Department of Chemistry, Graduate School of Science, Osaka University, Osaka, Japan.,Project Research Center, Graduate School of Science, Osaka University, Osaka, Japan
| | - Ken Watanabe
- Department of Bone and Joint Disease, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Lusi Oka Wardhani
- Division of Molecular Pathology, Faculty of Medicine, Department of Microbiology and Pathology, Tottori University, Tottori, Japan
| | - Kazuhiko Hayashi
- Division of Molecular Pathology, Faculty of Medicine, Department of Microbiology and Pathology, Tottori University, Tottori, Japan
| | - Toshiro Okazaki
- Faculty of Medicine, Department of Hematology and Immunology, Kanazawa Medical University, Kahoku, Japan.,Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, Kahoku, Japan
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Kikuchi M, Takai K, Isoo A, Taniguchi M. Myelographic CT, A Check-Valve Mechanism, and Microsurgical Treatment of Sacral Perineural Tarlov Cysts. World Neurosurg 2020; 136:e322-e327. [PMID: 31931233 DOI: 10.1016/j.wneu.2019.12.163] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 12/27/2019] [Accepted: 12/27/2019] [Indexed: 10/25/2022]
Abstract
OBJECTIVE There is currently no consensus regarding surgical indications for symptomatic sacral perineural cysts. METHODS Nine patients with symptomatic sacral perineural cysts underwent microsurgery. All patients fulfilled the following criteria: (1) cyst sizes larger than 15 mm; (2) cysts show the "delayed inflow" and/or "delayed outflow" of contrast on myelographic computed tomography (CT), and (3) neurological symptoms correlate with the primary cyst. RESULTS On myelographic CT, all primary cysts showed the "delayed inflow" of contrast; the average cyst/thecal sac Hounsfield units (HU) ratio was 0.17. In 7 patients, the primary cyst showed "delayed outflow"; the average cyst/thecal sac HU ratio increased to 3.12 on images obtained 24 hours after contrast injection. Regarding the modified Rankin Scale, 67% of patients reported that their overall symptoms improved to normal activities after surgery. The most improved symptom was coccydynia (75% improvement, P = 0.017), followed by leg radiation pain (67% improvement, P = 0.027) and buttock pain (50% improvement, P = 0.068). Bowel/bladder dysfunction improved in 100% of patients, but newly developed in 1 patient (P = 0.32). Perineal pain only decreased in 33% (P = 0.41). CONCLUSIONS To the best of our knowledge, this is the first study to have performed a quantitative analysis of the dynamics of cerebrospinal fluid in sacral perineural cysts using myelographic CT. Sixty-seven percent of patients benefited from surgery; however, our criteria may not be a necessary and sufficient condition for patient selection because 33% did not respond to surgery despite the successful elimination of the check-valve.
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Affiliation(s)
- Miyu Kikuchi
- Department of Neurosurgery, Tokyo Metropolitan Neurological Hospital, Tokyo, Japan
| | - Keisuke Takai
- Department of Neurosurgery, Tokyo Metropolitan Neurological Hospital, Tokyo, Japan.
| | - Ayako Isoo
- Department of Neurosurgery, Tokyo Metropolitan Neurological Hospital, Tokyo, Japan
| | - Makoto Taniguchi
- Department of Neurosurgery, Tokyo Metropolitan Neurological Hospital, Tokyo, Japan
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Matsumoto G, Hashizume C, Watanabe K, Taniguchi M, Okazaki T. Deficiency of sphingomyelin synthase 1 but not sphingomyelin synthase 2 reduces bone formation due to impaired osteoblast differentiation. Mol Med 2019; 25:56. [PMID: 31847800 PMCID: PMC6918654 DOI: 10.1186/s10020-019-0123-0] [Citation(s) in RCA: 9] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 11/25/2019] [Indexed: 01/08/2023] Open
Abstract
Background There are two isoforms of sphingomyelin synthase (SMS): SMS1 and SMS2. SMS1 is located in the Golgi apparatus only while SMS2 is located in both the plasma membrane and the Golgi apparatus. SMS1 and SMS2 act similarly to generate sphingomyelin (SM). We have undertaken the experiments reported here on SMS and osteoblast differentiation in order to better understand the role SMS plays in skeletal development. Methods We analyzed the phenotype of a conditional knockout mouse, which was generated by mating a Sp7 promoter-driven Cre-expressing mouse with an SMS1-floxed SMS2-deficient mouse (Sp7-Cre;SMS1f/f;SMS2−/− mouse). Results When we compared Sp7-Cre;SMS1f/f;SMS2−/− mice with C57BL/6, SMS2-deficient mice (SMS1f/f;SMS2−/−) and SP7-Cre positive control mice (Sp7-Cre, Sp7-Cre;SMS1+/+;SMS2+/− and Sp7-Cre;SMS1+/+;SMS2−/−), we found that although cartilage formation is normal, Sp7-Cre;SMS1f/f;SMS2−/− mice showed reduced trabecular and cortical bone mass, had lower bone mineral density, and had a slower mineral apposition rate than control mice. Next, we have used a tamoxifen-inducible knockout system in vitro to show that SMS1 plays an important role in osteoblast differentiation. We cultured osteoblasts derived from ERT2-Cre;SMS1f/fSMS2−/− mice. We observed impaired differentiation of these cells in response to Smad1/5/8 and p38 that were induced by bone morphogenic protein 2 (BMP2). However, Erk1/2 phosphorylation was unaffected by inactivation of SMS1. Conclusions These findings provide the first genetic evidence that SMS1 plays a role in bone development by regulating osteoblast development in cooperation with BMP2 signaling. Thus, SMS1 acts as an endogenous signaling component necessary for bone formation.
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Affiliation(s)
- Goichi Matsumoto
- Department of Oral and Maxillofacial Surgery, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Ishikawa, 920-0293, Japan.
| | - Chieko Hashizume
- Department of Medicine, Division of General and Digestive Surgery, Kanazawa Medical University, Ishikawa, Japan
| | - Ken Watanabe
- Department of Bone and Joint Disease, National Center for Geriatrics and Gerontology, Aichi, Japan
| | - Makoto Taniguchi
- Department of Life Science, Medical Research Institute, Kanazawa Medical University, Ishikawa, Japan
| | - Toshiro Okazaki
- Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, Ishikawa, Japan
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Fujii Y, Okura M, Taniguchi M, Ohi M. The relation between motor-behavioral episodes and phasic events during REM sleep in REM sleep behavior disorder. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Fujita K, Ito H, Nakamura M, Watai M, Taniguchi M. Determination of Chloramphenicol Residues in Bee Pollen by Liquid Chromatography/TandemMass Spectrometry. J AOAC Int 2019. [DOI: 10.1093/jaoac/91.5.1103] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
A novel liquid chromatographic/tandem mass spectrometric (LC/MS/MS) method was developed for the trace residue determination of chloramphenicol (CAP) in bee pollen. CAP was extracted from bee pollen with a mixture of methanol and 1 metaphosphoric acid solution, followed by a 2-stage solid-phase extraction enrichment and cleanup. The first stage involved a polymeric cartridge, and the second stage involved an alumina neutral cartridge. The LC separation was performed on a C18 column with 10 mM ammonium formateacetonitrile (7 + 3) as the mobile phase and MS detection with negative-ion electrospray ionization. CAP-d5 was used as the internal standard. The method was validated according to Commission Decision 2002/657/EC. The calibration curves were linear between 0.1 and 5.0 ng/mL, and overall recoveries ranged from 98 to 113. Decision limits (CC) ranged from 0.05 to 0.07 g/kg, and detection capabilities (CC) ranged from 0.08 to 0.12 g/kg. The developed method was applied to 11 samples.
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Affiliation(s)
- Kazuhiro Fujita
- Japan Food Research Laboratories, 7-4-41, Saitoasagi, Ibaraki-shi, Osaka 567-0085, Japan
| | - Hironobu Ito
- Japan Food Research Laboratories, 7-4-41, Saitoasagi, Ibaraki-shi, Osaka 567-0085, Japan
| | - Munetomo Nakamura
- Japan Food Research Laboratories, 7-4-41, Saitoasagi, Ibaraki-shi, Osaka 567-0085, Japan
| | - Masatoshi Watai
- Japan Food Research Laboratories, 7-4-41, Saitoasagi, Ibaraki-shi, Osaka 567-0085, Japan
| | - Makoto Taniguchi
- Mimasaka University, 50 Kitazono-cho, Tsuyama, Okayama 708-8511, Japan
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