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Duarte C, Yamada C, Ngala B, Garcia C, Akkaoui J, Birsa M, Ho A, Nusbaum A, AlQallaf H, John V, Movila A. Effects of IL-34 and anti-IL-34 neutralizing mAb on alveolar bone loss in a ligature-induced model of periodontitis. Mol Oral Microbiol 2024; 39:93-102. [PMID: 37902168 PMCID: PMC11058120 DOI: 10.1111/omi.12437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 09/19/2023] [Accepted: 09/21/2023] [Indexed: 10/31/2023]
Abstract
Macrophage colony-stimulating factor (M-CSF) and interleukin-34 (IL-34) are ligands for the colony-stimulating factor-1 receptor (CSF-1r) expressed on the surface of monocyte/macrophage lineage cells. The importance of coordinated signaling between M-CSF/receptor activator of the nuclear factor kappa-Β ligand (RANKL) in physiological and pathological bone remodeling and alveolar bone loss in response to oral bacterial colonization is well established. However, our knowledge about the IL-34/RANKL signaling in periodontal bone loss remains limited. Recently published cohort studies have demonstrated that the expression patterns of IL-34 are dramatically elevated in gingival crevicular fluid collected from patients with periodontitis. Therefore, the present study aims to evaluate the effects of IL-34 on osteoclastogenesis in vitro and in experimental ligature-mediated model of periodontitis using male mice. Our initial in vitro study demonstrated increased RANKL-induced osteoclastogenesis of IL-34-primed osteoclast precursors (OCPs) compared to M-CSF-primed OCPs. Using an experimental model of ligature-mediated periodontitis, we further demonstrated elevated expression of IL-34 in periodontal lesions. In contrast, M-CSF levels were dramatically reduced in these periodontal lesions. Furthermore, local injections of mouse recombinant IL-34 protein significantly elevated cathepsin K activity, increased the number of tartrate-resistant acid phosphatase (TRAP)-positive osteoclasts and promoted alveolar bone loss in periodontitis lesions. In contrast, anti-IL-34 neutralizing monoclonal antibody significantly reduced the level of alveolar bone loss and the number of TRAP-positive osteoclasts in periodontitis lesions. No beneficial effects of locally injected anti-M-CSF neutralizing antibody were observed in periodontal lesions. This study illustrates the role of IL-34 in promoting alveolar bone loss in periodontal lesions and proposes the potential of anti-IL34 monoclonal antibody (mAb)-based therapeutic regimens to suppress alveolar bone loss in periodontitis lesions.
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Affiliation(s)
- Carolina Duarte
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Davie, FL, USA
- Hussman Institute for Autism, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Chiaki Yamada
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN, USA
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Bidii Ngala
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN, USA
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Christopher Garcia
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA
- Indiana University School of Medicine, Indianapolis, IN, USA
| | - Juliet Akkaoui
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Davie, FL, USA
- School of Medicine, Florida International University, Miami, FL, USA
| | - Maxim Birsa
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Davie, FL, USA
| | - Anny Ho
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Davie, FL, USA
| | - Amilia Nusbaum
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN, USA
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Hawra AlQallaf
- Department of Periodontology, Indiana University School of Dentistry, Indianapolis, IN, USA
| | - Vanchit John
- Department of Periodontology, Indiana University School of Dentistry, Indianapolis, IN, USA
| | - Alexandru Movila
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Davie, FL, USA
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN, USA
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA
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Shinotsuka S, Maeda A, Eri T, Kameyama N, Yamada C, Asada M, Yamaura K. Successful radiofrequency thermocoagulation of the mandibular nerve for intractable pain associated with medication-related osteonecrosis of the jaw: a case report. JA Clin Rep 2024; 10:12. [PMID: 38349573 PMCID: PMC10864227 DOI: 10.1186/s40981-024-00696-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 02/01/2024] [Accepted: 02/02/2024] [Indexed: 02/16/2024] Open
Abstract
BACKGROUND Bisphosphonates may cause serious adverse events, including osteonecrosis of the jaw. This article describes a case of successful application of radiofrequency thermocoagulation for pain caused by osteonecrosis of the jaw. CASE PRESENTATION An 86-year-old woman who had received alendronate sodium hydrate for osteoporosis was diagnosed with osteonecrosis of the right mandible after dental treatment. Despite repeated conservative and debridement treatments, the patient could not eat due to intractable pain; accordingly, her condition was debilitated. The patient was referred to our pain management clinic for radiofrequency thermocoagulation of the right mandibular nerve. Immediately after the procedure, her pain drastically improved and she could eat; moreover, the pain has not recurred for 3 years. CONCLUSION Our findings demonstrate that minimally invasive radiofrequency thermocoagulation may have long-term effects in patients with chronic pain caused by osteonecrosis of the jaw that is refractory to conservative treatment.
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Affiliation(s)
- Sho Shinotsuka
- Department of Anesthesiology and Critical Care Medicine, Kyushu University Hospital, 3-1-1 Maidashi Higashi-Ku, Fukuoka City, Fukuoka, 812-8582, Japan
| | - Aiko Maeda
- Department of Anesthesiology and Critical Care Medicine, Kyushu University Hospital, 3-1-1 Maidashi Higashi-Ku, Fukuoka City, Fukuoka, 812-8582, Japan.
| | - Tomoka Eri
- Department of Anesthesiology and Critical Care Medicine, Kyushu University Hospital, 3-1-1 Maidashi Higashi-Ku, Fukuoka City, Fukuoka, 812-8582, Japan
| | - Nozomi Kameyama
- Department of Anesthesiology and Critical Care Medicine, Kyushu University Hospital, 3-1-1 Maidashi Higashi-Ku, Fukuoka City, Fukuoka, 812-8582, Japan
| | - Chiaki Yamada
- Department of Anesthesiology and Critical Care Medicine, Kyushu University Hospital, 3-1-1 Maidashi Higashi-Ku, Fukuoka City, Fukuoka, 812-8582, Japan
| | - Masako Asada
- Operating Rooms, Kyushu University Hospital, Fukuoka, Japan
| | - Ken Yamaura
- Department of Anesthesiology and Critical Care Medicine, Kyushu University Graduate School of Medicine, Fukuoka, Japan
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Yamada C, Ho A, Garcia C, Oblak AL, Bissel S, Porosencova T, Porosencov E, Uncuta D, Ngala B, Shepilov D, Skibo G, Mascarenhas AK, Akkaoui J, Lakshmana MK, Sankar U, Nichols F, Lamb BT, Groppa S, Movila A. Dementia exacerbates periodontal bone loss in females. J Periodontal Res 2024. [PMID: 38243688 DOI: 10.1111/jre.13227] [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: 03/09/2023] [Revised: 12/01/2023] [Accepted: 12/06/2023] [Indexed: 01/21/2024]
Abstract
BACKGROUND Periodontitis is a chronic inflammatory disease defined by the pathologic loss of the periodontal ligament and alveolar bone in relation to aging. Although clinical cohort studies reported that periodontitis is significantly elevated in males compared to females, emerging evidence indicates that females with dementia are at a greater risk for periodontitis and decreased alveolar bone. OBJECTIVE This study aimed to evaluate whether dementia is a potential sex-dependent risk factor for periodontal bone loss using an experimental model of periodontitis induced in the triple transgenic (3x-Tg) dementia-like mice and clinical samples collected from senior 65 plus age patients with diagnosed dementia. MATERIALS AND METHODS We induced periodontitis in dementia-like triple-transgenic (3x-Tg) male and female mice and age-matched wild-type (WT) control mice by ligature placement. Then, alveolar bone loss and osteoclast activity were evaluated using micro-CT and in situ imaging assays. In addition, we performed dental examinations on patients with diagnosed dementia. Finally, dementia-associated Aβ42 and p-Tau (T181) and osteoclastogenic receptor activator of nuclear factor kappa-Β ligand (RANKL) in gingival crevicular fluid (GCF) collected from mice and clinical samples were measured by enzyme-linked immunosorbent assay (ELISA). RESULTS Alveolar bone loss and in situ osteoclast activity were significantly elevated in periodontal lesions of 3x-Tg females but not males, compared to wild-type control mice. In addition, we also observed that the probing pocket depth (PPD) was also significantly elevated in female patients with dementia. Using ELISA assay, we observed that females had elevated levels of osteoclastogenic RANKL and dementia-associated Aβ42 and p-Tau (T181) in the GCF collected from experimental periodontitis lesions and clinical samples. CONCLUSION Altogether, we demonstrate that females with dementia have an increased risk for periodontal bone loss compared to males.
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Affiliation(s)
- Chiaki Yamada
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, Indiana, USA
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Anny Ho
- Institute of Neuro-immune Medicine, Nova Southeastern University, Ft. Lauderdale, Florida, USA
| | - Christopher Garcia
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Adrian L Oblak
- Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, Indiana, USA
- Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Stephanie Bissel
- Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, Indiana, USA
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Tatiana Porosencova
- Faculty of Dentistry, "Nicolae Testemițanu" State University of Medicine and Pharmacy, Chisinau, Moldova
| | - Egor Porosencov
- Faculty of Dentistry, "Nicolae Testemițanu" State University of Medicine and Pharmacy, Chisinau, Moldova
| | - Diana Uncuta
- Faculty of Dentistry, "Nicolae Testemițanu" State University of Medicine and Pharmacy, Chisinau, Moldova
| | - Bidii Ngala
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, Indiana, USA
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Dmytro Shepilov
- Department of Cytology, Bogomoletz Institute of Physiology, NAS of Ukraine, Kyiv, Ukraine
| | - Galyna Skibo
- Department of Cytology, Bogomoletz Institute of Physiology, NAS of Ukraine, Kyiv, Ukraine
| | | | - Juliet Akkaoui
- Institute of Neuro-immune Medicine, Nova Southeastern University, Ft. Lauderdale, Florida, USA
- Herbert Wertheim College of Medicine, Florida International University, Miami, Florida, USA
| | - Madepalli K Lakshmana
- Herbert Wertheim College of Medicine, Florida International University, Miami, Florida, USA
| | - Uma Sankar
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, Indiana, USA
- Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Frank Nichols
- Department of Oral Health and Diagnostic Sciences, University of Connecticut School of Dental Medicine, Farmington, Connecticut, USA
| | - Bruce T Lamb
- Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, Indiana, USA
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Stanislav Groppa
- Department of Neurology, Institute of Emergency Medicine, Chisinau, Moldova
- Department of Neurology, "Nicolae Testemițanu" State University of Medicine and Pharmacy, Chisinau, Moldova
| | - Alexandru Movila
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, Indiana, USA
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, Indiana, USA
- Institute of Neuro-immune Medicine, Nova Southeastern University, Ft. Lauderdale, Florida, USA
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Davie, Florida, USA
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Ho A, Ngala B, Yamada C, Garcia C, Duarte C, Akkaoui J, Ciolac D, Nusbaum A, Kochen W, Efremova D, Groppa S, Nathanson L, Bissel S, Oblak A, Kacena MA, Movila A. IL-34 exacerbates pathogenic features of Alzheimer's disease and calvaria osteolysis in triple transgenic (3x-Tg) female mice. Biomed Pharmacother 2023; 166:115435. [PMID: 37666180 DOI: 10.1016/j.biopha.2023.115435] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 08/22/2023] [Accepted: 08/31/2023] [Indexed: 09/06/2023] Open
Abstract
Hallmark features of Alzheimer's disease (AD) include elevated accumulation of aggregated Aβ40 and Aβ42 peptides, hyperphosphorylated Tau (p-Tau), and neuroinflammation. Emerging evidence indicated that interleukin-34 (IL-34) contributes to AD and inflammatory osteolysis via the colony-stimulating factor-1 receptor (CSF-1r). In addition, CSF-1r is also activated by macrophage colony-stimulating factor-1 (M-CSF). While the role of M-CSF in bone physiology and pathology is well addressed, it remains controversial whether IL-34-mediated signaling promotes osteolysis, neurodegeneration, and neuroinflammation in relation to AD. In this study, we injected 3x-Tg mice with mouse recombinant IL-34 protein over the calvaria bone every other day for 42 days. Then, behavioral changes, brain pathology, and calvaria osteolysis were evaluated using various behavioral maze and histological assays. We demonstrated that IL-34 administration dramatically elevated AD-like anxiety and memory loss, pathogenic amyloidogenesis, p-Tau, and RAGE expression in female 3x-Tg mice. Furthermore, IL-34 delivery promoted calvaria inflammatory osteolysis compared to the control group. In addition, we also compared the effects of IL-34 and M-CSF on macrophages, microglia, and RANKL-mediated osteoclastogenesis in relation to AD pathology in vitro. We observed that IL-34-exposed SIM-A9 microglia and 3x-Tg bone marrow-derived macrophages released significantly elevated amounts of pro-inflammatory cytokines, TNF-α, IL-1β, and IL-6, compared to M-CSF treatment in vitro. Furthermore, IL-34, but not M-CSF, elevated RANKL-primed osteoclastogenesis in the presence of Aβ40 and Aβ42 peptides in bone marrow derived macrophages isolated from female 3x-Tg mice. Collectively, our data indicated that IL-34 elevates AD-like features, including behavioral changes and neuroinflammation, as well as osteoclastogenesis in female 3x-Tg mice.
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Affiliation(s)
- Anny Ho
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Davie, FL, USA
| | - Bidii Ngala
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN, USA; Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Chiaki Yamada
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN, USA; Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Christopher Garcia
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Davie, FL, USA; Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA; Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Carolina Duarte
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Davie, FL, USA
| | - Juliet Akkaoui
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Davie, FL, USA; Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA
| | - Dumitru Ciolac
- Laboratory of Neurobiology and Medical Genetics, "Nicolae Testemițanu" State University of Medicine and Pharmacology, Chisinau, Republic of Moldova; Department of Neurology, Institute of Emergency Medicine, Chisinau, Republic of Moldova
| | - Amilia Nusbaum
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN, USA; Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA
| | - William Kochen
- College of Psychology, Nova Southeastern University, Ft. Lauderdale, FL, USA
| | - Daniela Efremova
- Laboratory of Neurobiology and Medical Genetics, "Nicolae Testemițanu" State University of Medicine and Pharmacology, Chisinau, Republic of Moldova; Department of Neurology, Institute of Emergency Medicine, Chisinau, Republic of Moldova
| | - Stanislav Groppa
- Laboratory of Neurobiology and Medical Genetics, "Nicolae Testemițanu" State University of Medicine and Pharmacology, Chisinau, Republic of Moldova; Department of Neurology, Institute of Emergency Medicine, Chisinau, Republic of Moldova
| | - Lubov Nathanson
- Institute for Neuro Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL, USA
| | - Stephanie Bissel
- Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN 46202, USA; Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Adrian Oblak
- Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN 46202, USA; Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Melissa A Kacena
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA; Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Alexandru Movila
- Department of Oral Sciences and Translational Research, College of Dental Medicine, Nova Southeastern University, Davie, FL, USA; Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN, USA; Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA; Institute for Neuro Immune Medicine, Dr. Kiran C. Patel College of Osteopathic Medicine, Nova Southeastern University, Ft. Lauderdale, FL, USA.
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Shepilov D, Osadchenko I, Kovalenko T, Yamada C, Chereshynska A, Smozhanyk K, Ostrovska G, Groppa S, Movila A, Skibo G. Maternal antibiotic administration during gestation can affect the memory and brain structure in mouse offspring. Front Cell Neurosci 2023; 17:1176676. [PMID: 37234915 PMCID: PMC10206017 DOI: 10.3389/fncel.2023.1176676] [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: 02/28/2023] [Accepted: 04/18/2023] [Indexed: 05/28/2023] Open
Abstract
Maternal antibiotics administration (MAA) is among the widely used therapeutic approaches in pregnancy. Although published evidence demonstrates that infants exposed to antibiotics immediately after birth have altered recognition memory responses at one month of age, very little is known about in utero effects of antibiotics on the neuronal function and behavior of children after birth. Therefore, this study aimed to evaluate the impact of MAA at different periods of pregnancy on memory decline and brain structural alterations in young mouse offspring after their first month of life. To study the effects of MAA on 4-week-old offspring, pregnant C57BL/6J mouse dams (2-3-month-old; n = 4/group) were exposed to a cocktail of amoxicillin (205 mg/kg/day) and azithromycin (51 mg/kg/day) in sterile drinking water (daily/1 week) during either the 2nd or 3rd week of pregnancy and stopped after delivery. A control group of pregnant dams was exposed to sterile drinking water alone during all three weeks of pregnancy. Then, the 4-week-old offspring mice were first evaluated for behavioral changes. Using the Morris water maze assay, we revealed that exposure of pregnant mice to antibiotics at the 2nd and 3rd weeks of pregnancy significantly altered spatial reference memory and learning skills in their offspring compared to those delivered from the control group of dams. In contrast, no significant difference in long-term associative memory was detected between offspring groups using the novel object recognition test. Then, we histologically evaluated brain samples from the same offspring individuals using conventional immunofluorescence and electron microscopy assays. To our knowledge, we observed a reduction in the density of the hippocampal CA1 pyramidal neurons and hypomyelination in the corpus callosum in groups of mice in utero exposed to antibiotics at the 2nd and 3rd weeks of gestation. In addition, offspring exposed to antibiotics at the 2nd or 3rd week of gestation demonstrated a decreased astrocyte cell surface area and astrocyte territories or depletion of neurogenesis in the dentate gyrus and hippocampal synaptic loss, respectively. Altogether, this study shows that MAA at different times of pregnancy can pathologically alter cognitive behavior and brain development in offspring at an early age after weaning.
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Affiliation(s)
- Dmytro Shepilov
- Department of Cytology, Bogomoletz Institute of Physiology, NAS of Ukraine, Kyiv, Ukraine
| | - Iryna Osadchenko
- Department of Cytology, Bogomoletz Institute of Physiology, NAS of Ukraine, Kyiv, Ukraine
| | - Tetiana Kovalenko
- Department of Cytology, Bogomoletz Institute of Physiology, NAS of Ukraine, Kyiv, Ukraine
| | - Chiaki Yamada
- Department of Biomedical Sciences and Comprehensive Care, School of Dentistry, Indiana University, Indianapolis, IN, United States
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Anastasiia Chereshynska
- Department of Biomedical Sciences and Comprehensive Care, School of Dentistry, Indiana University, Indianapolis, IN, United States
| | - Kateryna Smozhanyk
- Department of Cytology, Bogomoletz Institute of Physiology, NAS of Ukraine, Kyiv, Ukraine
| | - Galyna Ostrovska
- Department of Cytology, Histology, and Reproductive Medicine, Institute of Biology and Medicine, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
| | - Stanislav Groppa
- Department of Neurology, Institute of Emergency Medicine, Chisinau, Moldova
- Department of Neurology, State University of Medicine and Pharmacy “Nicolae Testemiţanu”, Chisinau, Moldova
| | - Alexandru Movila
- Department of Biomedical Sciences and Comprehensive Care, School of Dentistry, Indiana University, Indianapolis, IN, United States
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Galyna Skibo
- Department of Cytology, Bogomoletz Institute of Physiology, NAS of Ukraine, Kyiv, Ukraine
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Yamada C, Ho A, Nusbaum A, Xu R, Davey ME, Nichols F, Mao C, Movila A. Inhibitory effect of Porphyromonas gingivalis-derived phosphoethanolamine dihydroceramide on acid ceramidase expression in oral squamous cells. J Cell Mol Med 2023; 27:1290-1295. [PMID: 37016912 PMCID: PMC10148054 DOI: 10.1111/jcmm.17722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 02/17/2023] [Accepted: 03/03/2023] [Indexed: 04/06/2023] Open
Abstract
The maintenance of diminished acid ceramidase (ASAH1) gene expression leading to the accumulation of antiproliferative intracellular ceramides in oral squamous cell carcinoma (OSCC) has emerged as a prospective oral cancer therapeutic regimen. Our published study demonstrated that the key periodontal pathogen Porphyromonas gingivalis downregulates the expression patterns of ASAH1 mRNA in normal epithelial cells in vitro. Therefore, P. gingivalis may also beneficially diminish the expression of ASAH1 in OSCC. Because a uniquely structured P. gingivalis-derived phosphoethanolamine dihydroceramide (PEDHC) inhibits the proliferation of normal human fibroblasts, this study aimed to test the effect of PEDHC on the survival of human oral squamous OECM-1 cells in vitro. We demonstrated that the P. gingivalis dihydroceramide-null (ΔPG1780) strain upregulates the expression of ASAH1 mRNA and promotes aggressive proliferation and migration of OECM-1 cells compared to the parent P. gingivalis-W83 strain. In addition, the intracellular concentration of ceramides was dramatically elevated in OECM-1 cells exposed to PEDHC in vitro. Furthermore, PEDHC inhibited expression patterns of ASAH1 mRNA as well as some genes associated with degradation of the basement membranes and extracellular matrix, for example, MMP-2, ADAM-17 and IL-6, in OECM-1 cells. Altogether, these data indicated that PEDHC produced by P. gingivalis inhibits acid ceramidase expression, promotes intracellular ceramide accumulation and suppresses the survival and migration of OSCC cells in vitro. Further studies are needed to determine molecular mechanisms of PEDHC-mediated inhibitory effect(s) on OSCC using in vivo models of oral cancer.
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Affiliation(s)
- Chiaki Yamada
- Department of Biomedical Sciences and Comprehensive CareIndiana University School of DentistryIndianapolisIndianaUSA
- Indiana Center for Musculoskeletal HealthIndiana University School of MedicineIndianapolisIndianaUSA
| | - Anny Ho
- Institute for Neuro‐Immune MedicineNova Southeastern UniversityFort LauderdaleFloridaUSA
| | - Amilia Nusbaum
- Department of Biomedical Sciences and Comprehensive CareIndiana University School of DentistryIndianapolisIndianaUSA
- Indiana Center for Musculoskeletal HealthIndiana University School of MedicineIndianapolisIndianaUSA
| | - Ruijuan Xu
- Department of Medicine, Stony Brook Cancer CenterRenaissance School of MedicineThe State University of New York at Stony BrookStony BrookNew YorkUSA
| | - Mary Ellen Davey
- Department of MicrobiologyThe Forsyth InstituteCambridgeMassachusettsUSA
| | - Frank Nichols
- Department of Oral Health and Diagnostic SciencesUniversity of Connecticut School of Dental MedicineFarmingtonConnecticutUSA
| | - Cungui Mao
- Department of Medicine, Stony Brook Cancer CenterRenaissance School of MedicineThe State University of New York at Stony BrookStony BrookNew YorkUSA
| | - Alexandru Movila
- Department of Biomedical Sciences and Comprehensive CareIndiana University School of DentistryIndianapolisIndianaUSA
- Indiana Center for Musculoskeletal HealthIndiana University School of MedicineIndianapolisIndianaUSA
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7
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Amano K, Sugauchi A, Yamada C, Kogo M, Iida S. Osteonecrosis of the Jaw in Two Rheumatoid Arthritis Patients Not Treated with a Bisphosphonate. Acta Med Okayama 2023; 77:111-116. [PMID: 36849155 DOI: 10.18926/amo/64371] [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] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
Medication-related osteonecrosis of the jaw (MRONJ) is a side effect in patients taking bone-modifying agents (BMAs), which are highly beneficial for treating osteoporosis and cancer. Bisphosphonates are prescribed to treat secondary osteoporosis in patients with rheumatoid arthritis (RA). We recently encountered two unusual cases of intraoral ONJ in RA patients who had not been treated with a BMA and did not have features of methotrexate- associated lymphoproliferative disorder. Their ONJ stage II bone exposures were treated by conservative therapy, providing good prognoses. These cases indicate that ONJ can occur in RA patients not treated with bisphosphonates. Several risk factors are discussed.
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Affiliation(s)
- Katsuhiko Amano
- Department of Oral and Maxillofacial Reconstructive Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences.,The first department of Oral and Maxillofacial Surgery, Osaka University Graduate School of Dentistry
| | - Akinari Sugauchi
- The first department of Oral and Maxillofacial Surgery, Osaka University Graduate School of Dentistry
| | - Chiaki Yamada
- Department of Oral and Maxillofacial Reconstructive Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Mikihiko Kogo
- The first department of Oral and Maxillofacial Surgery, Osaka University Graduate School of Dentistry
| | - Seiji Iida
- Department of Oral and Maxillofacial Reconstructive Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
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Efremova D, Ciolac D, Zota E, Glavan D, Ciobanu N, Aulitzky W, Nics AM, Trinka E, Yamada C, Movila A, Groppa SA. Dissecting the Spectrum of Stroke Risk Factors in an Apparently Healthy Population: Paving the Roadmap to Primary Stroke Prevention. J Cardiovasc Dev Dis 2023; 10:35. [PMID: 36826531 PMCID: PMC9965290 DOI: 10.3390/jcdd10020035] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/24/2022] [Accepted: 01/12/2023] [Indexed: 01/21/2023] Open
Abstract
We aimed to investigate, for the first time, the spectrum of stroke risk factors specific to the population of the Republic of Moldova. The subjects were examined according to a pre-established protocol of risk factor estimation. The study involved 300 subjects, including 60% women and 40% men, with a mean age of 49.9 ± 14.5 years. The most common risk factor was abdominal obesity, identified in 75% of subjects; general obesity was detected in 48%, while 32% of subjects were overweight and 20% were normally weighted. Hypertension was observed in 44%; 8% of those examined had atrial fibrillation, and 9% had diabetes mellitus. Left myocardial hypertrophy on ECG was present in 53% of subjects, and acute ischemic changes in 2%. Laboratory observations detected that glycosylated hemoglobin increased by 7%, and >50% had dyslipidemia. Total cholesterol was significantly elevated by 58%, LDL-cholesterol was increased by 32%, and HDL-cholesterol was decreased by 9%. Homocysteine was increased in 55% and high-sensitivity C-reactive protein in 28% of subjects. These results indicate the presence of modifiable risk factors and the necessity to elaborate on the primary prevention strategies aimed at minimizing the burden of stroke in the population of the Republic of Moldova.
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Affiliation(s)
- Daniela Efremova
- Department of Neurology, Institute of Emergency Medicine, 2004 Chisinau, Moldova
- Department of Neurology, Nicolae Testemitanu State University of Medicine and Pharmacy, 2004 Chisinau, Moldova
| | - Dumitru Ciolac
- Department of Neurology, Institute of Emergency Medicine, 2004 Chisinau, Moldova
- Department of Neurology, Nicolae Testemitanu State University of Medicine and Pharmacy, 2004 Chisinau, Moldova
| | - Eremei Zota
- Department of Neurology, Institute of Emergency Medicine, 2004 Chisinau, Moldova
- Department of Neurology, Nicolae Testemitanu State University of Medicine and Pharmacy, 2004 Chisinau, Moldova
| | - Danu Glavan
- Department of Neurology, Institute of Emergency Medicine, 2004 Chisinau, Moldova
- Department of Neurology, Nicolae Testemitanu State University of Medicine and Pharmacy, 2004 Chisinau, Moldova
| | - Natalia Ciobanu
- Department of Neurology, Institute of Emergency Medicine, 2004 Chisinau, Moldova
- Department of Neurology, Nicolae Testemitanu State University of Medicine and Pharmacy, 2004 Chisinau, Moldova
| | - Wolfgang Aulitzky
- Open Medical Institute, American Austrian Foundation, 5020 Salzburg, Austria
| | - Anna Maria Nics
- Open Medical Institute, American Austrian Foundation, 5020 Salzburg, Austria
| | - Eugen Trinka
- Department of Neurology, Christian Doppler University Hospital, Paracelsus Medical University, Centre for Cognitive Neuroscience, 5020 Salzburg, Austria
- Neuroscience Institute, Christian Doppler University Hospital, Paracelsus Medical University, Centre for Cognitive Neuroscience, 5020 Salzburg, Austria
- Department of Public Health, Health Services Research and Health Technology Assessment, UMIT—University for Health Sciences, Medical Informatics and Technology, 6060 Hall in Tirol, Austria
| | - Chiaki Yamada
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN 46202, USA
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Alexandru Movila
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN 46202, USA
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Stanislav A. Groppa
- Department of Neurology, Institute of Emergency Medicine, 2004 Chisinau, Moldova
- Department of Neurology, Nicolae Testemitanu State University of Medicine and Pharmacy, 2004 Chisinau, Moldova
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Morozov A, Nirca V, Victorova A, Poppert S, Frickmann H, Yamada C, Kacena MA, Rata S, Movila A. SARS-CoV-2 from COVID-19 Patients in the Republic of Moldova: Whole-Genome Sequencing Results. Viruses 2022; 14:v14102310. [PMID: 36298865 PMCID: PMC9610950 DOI: 10.3390/v14102310] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 10/12/2022] [Accepted: 10/14/2022] [Indexed: 11/06/2022] Open
Abstract
Since the onset of the COVID-19 pandemic, no viral genome sequences of the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) have been documented from the Republic of Moldova, a developing country geographically located in Eastern Europe between Romania and Ukraine. Here, we report the analysis of 96 SARS-CoV-2 sequences from Delta and Omicron variants of the SARS-CoV-2 cases in the Republic of Moldova obtained between August and November 2021 and between January and May 2022. Comparison to global viral sequences showed that among the Delta variant of the SARS-CoV-2, AY.122 (n = 25), followed by AY.4.2.3 (n = 6), AY.4 (n = 5), AY.43 (n = 3), AY.98.1 (n = 3), B.1.617.2 (n = 1), AY.125 (n = 1), AY.54 (n = 1), AY.9 (n = 1), AY.126 (n = 1), and AY.33 (n = 1) were the most frequently found lineages. Furthermore, 10 lineages of the Omicron variant, namely, BA.2 (n = 14), followed by BA.2.9 (n = 10), BA.1 (n = 5), BA.1.1 (n = 5), BA.1.18 (n = 4), BA.1.15.1 (n = 3), BA.1.17.2 (n = 2), BA.1.17 (n = 2), BA.1.15 (n = 1), and BA.2.1 (n = 1) were detected. In addition, we also identified the impact of the military crisis between Russia and Ukraine, when the COVID-19 epidemiological rules collapsed, on the distribution of Delta and Omicron variants in the Republic of Moldova. Additional studies are warranted to characterize further the impact of the war between Russia and Ukraine on the genomic epidemiology of the SARS-CoV-2 in the Republic of Moldova and Eastern Europe.
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Affiliation(s)
- Alexandr Morozov
- Molecular Biology Department, Imunotehnomed Ltd., MD-2001 Chisinau, Moldova
- Laboratory of Systematics and Molecular Phylogeny, Institute of Zoology, MD-2028 Chisinau, Moldova
- Correspondence: (A.M.); (S.P.); (A.M.)
| | - Vadim Nirca
- Molecular Biology Department, Imunotehnomed Ltd., MD-2001 Chisinau, Moldova
| | - Anna Victorova
- Molecular Biology Department, Imunotehnomed Ltd., MD-2001 Chisinau, Moldova
| | - Sven Poppert
- Diagnostic Department, Bernhard Nocht Institute for Tropical Medicine Hamburg, 20095 Hamburg, Germany
- Correspondence: (A.M.); (S.P.); (A.M.)
| | - Hagen Frickmann
- Department of Microbiology and Hospital Hygiene, Bundeswehr Hospital Hamburg, 20095 Hamburg, Germany
- Institute for Medical Microbiology, Virology and Hygiene, University Medicine Rostock, 18057 Rostock, Germany
| | - Chiaki Yamada
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN 46201, USA
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN 46201, USA
| | - Melissa A. Kacena
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN 46201, USA
| | - Sergiu Rata
- Molecular Biology Department, Imunotehnomed Ltd., MD-2001 Chisinau, Moldova
| | - Alexandru Movila
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN 46201, USA
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN 46201, USA
- Correspondence: (A.M.); (S.P.); (A.M.)
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10
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Yokosuka A, Yamada C, Saito M, Yokogawa S, Mimaki Y. Chemical Constituents of the Leaves of Thujopsis dolabrata and Their Cytotoxicity. Chem Pharm Bull (Tokyo) 2022; 70:720-725. [PMID: 36184455 DOI: 10.1248/cpb.c22-00286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Five podophyllotoxin derivatives (1-5), two diterpenoids (6 and 7), three diterpenoid xylosides (8-10), a flavanonol glycoside (11), flavonol (12), and biflavonoid (13) were isolated from the leaves of Thujopsis dolabrata (Cupressaceae). Compounds 1, 6, and 8 were named (-)-β-isopeltatin, epi-nootkastatin 2, and acetoxyanticopalol 15-O-β-D-xylopyranoside, respectively. The structures of the isolated compounds were determined based on a detailed analysis of NMR spectroscopic data and through chromatographic and spectroscopic analyses following specific chemical transformations. The isolated compounds (1-5 and 7-11) were evaluated for their cytotoxicity toward HL-60 human promyelocytic leukemia cells and Caki-1 human kidney carcinoma cells. The podophyllotoxin derivatives (1-5) exhibited cytotoxicity against both HL-60 and Caki-1 cells with IC50 values ranging from 0.00069 to 5.4 µM, and the diterpenoid derivatives (7-10) demonstrated cytotoxicity against HL-60 cells with IC50 values ranging from 4.5 to 11 µM. HL-60 cells treated with 8 exhibited apoptosis characteristics, such as accumulation of sub-G1 cells and nuclear chromatin condensation.
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Affiliation(s)
- Akihito Yokosuka
- Department of Medicinal Pharmacognosy, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences
| | - Chiaki Yamada
- Department of Medicinal Pharmacognosy, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences
| | - Makoto Saito
- Department of Medicinal Pharmacognosy, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences
| | - Shohei Yokogawa
- Department of Medicinal Pharmacognosy, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences
| | - Yoshihiro Mimaki
- Department of Medicinal Pharmacognosy, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences
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11
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Duarte C, Yamada C, Garcia C, Akkaoui J, Ho A, Nichols F, Movila A. Crosstalk between dihydroceramides produced by
Porphyromonas gingivalis
and host lysosomal cathepsin B in the promotion of osteoclastogenesis. J Cell Mol Med 2022; 26:2841-2851. [PMID: 35429112 PMCID: PMC9097840 DOI: 10.1111/jcmm.17299] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 03/15/2022] [Accepted: 03/21/2022] [Indexed: 11/28/2022] Open
Affiliation(s)
- Carolina Duarte
- Department of Oral Sciences and Translational Research College of Dental Medicine Nova Southeastern University Davie Florida USA
| | - Chiaki Yamada
- Department of Oral Sciences and Translational Research College of Dental Medicine Nova Southeastern University Davie Florida USA
- Department of Biomedical Sciences and Comprehensive Care Indiana University School of Dentistry Indianapolis Indiana USA
| | - Christopher Garcia
- Department of Oral Sciences and Translational Research College of Dental Medicine Nova Southeastern University Davie Florida USA
| | - Juliet Akkaoui
- Department of Oral Sciences and Translational Research College of Dental Medicine Nova Southeastern University Davie Florida USA
| | - Anny Ho
- Department of Oral Sciences and Translational Research College of Dental Medicine Nova Southeastern University Davie Florida USA
| | - Frank Nichols
- Department of Oral Health and Diagnostic Sciences University of Connecticut School of Dental Medicine Farmington Connecticut USA
| | - Alexandru Movila
- Department of Oral Sciences and Translational Research College of Dental Medicine Nova Southeastern University Davie Florida USA
- Department of Biomedical Sciences and Comprehensive Care Indiana University School of Dentistry Indianapolis Indiana USA
- Indiana Center for Musculoskeletal Health Indiana University School of Medicine Indianapolis Indiana USA
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12
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Maeda A, Araki K, Yamada C, Nakayama S, Shirozu K, Yamaura K. Treatment of trigeminal and glossopharyngeal neuralgia in an adolescent: a case report. JA Clin Rep 2021; 7:61. [PMID: 34365546 PMCID: PMC8349942 DOI: 10.1186/s40981-021-00465-5] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/30/2021] [Accepted: 08/03/2021] [Indexed: 12/03/2022] Open
Abstract
Background Hyperactive dysfunction syndrome (HDS) refers to a constellation of symptoms developing from cranial nerve overactivity caused by neurovascular compression at the root entry or exit zone near the brainstem. Although the combined features of HDS are seen in the elderly, there are no reports of such cases in adolescents, to date. Case presentation A 17-year-old male was diagnosed with right glossopharyngeal neuralgia and treated with microvascular decompression. He experienced new-onset right facial pain later and was diagnosed with right trigeminal neuralgia, which required prompt radiofrequency thermocoagulation of the right mandibular nerve. Follow-up in the third post-treatment year revealed the absence of symptom recurrence. Discussion We report the treatment of a rare case of adolescent-onset combined HDS presenting as trigeminal and glossopharyngeal neuralgia. This report highlights the possibility of combined hyperactive dysfunction syndrome in younger age groups. It is crucial to establish a diagnosis early on for prompt management.
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Affiliation(s)
- Aiko Maeda
- Department of Anesthesiology and Critical Care Medicine, Kyushu University Hospital, 3-1-1 Maedashi Higashi-ku, Fukuoka City, Fukuoka, 812-8582, Japan.
| | - Kenzo Araki
- Department of Anesthesiology and Critical Care Medicine, Kyushu University Hospital, 3-1-1 Maedashi Higashi-ku, Fukuoka City, Fukuoka, 812-8582, Japan
| | - Chiaki Yamada
- Department of Anesthesiology and Critical Care Medicine, Kyushu University Hospital, 3-1-1 Maedashi Higashi-ku, Fukuoka City, Fukuoka, 812-8582, Japan
| | - Shoko Nakayama
- Operating Rooms, Kyushu University Hospital, Fukuoka, Japan
| | - Kazuhiro Shirozu
- Department of Anesthesiology and Critical Care Medicine, Kyushu University Graduate School of Medicine, Fukuoka, Japan
| | - Ken Yamaura
- Department of Anesthesiology and Critical Care Medicine, Kyushu University Graduate School of Medicine, Fukuoka, Japan
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Yamada C, Maeda A, Matsushita K, Nakayama S, Shirozu K, Yamaura K. 1-kHz high-frequency spinal cord stimulation alleviates chronic refractory pain after spinal cord injury: a case report. JA Clin Rep 2021; 7:46. [PMID: 34101052 PMCID: PMC8187537 DOI: 10.1186/s40981-021-00451-x] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 06/01/2021] [Accepted: 06/03/2021] [Indexed: 11/10/2022] Open
Abstract
Background Patients with spinal cord injury (SCI) frequently complain of intractable pain that is resistant to conservative treatments. Here, we report the successful application of 1-kHz high-frequency spinal cord stimulation (SCS) in a patient with refractory neuropathic pain secondary to SCI. Case presentation A 69-year-old male diagnosed with SCI (C4 American Spinal Injury Association Impairment Scale A) presented with severe at-level bilateral upper extremity neuropathic pain. Temporary improvement in his symptoms with a nerve block implied peripheral component involvement. The patient received SCS, and though the tip of the leads could not reach the cervical vertebrae, a 1-kHz frequency stimulus relieved the intractable pain. Conclusions SCI-related symptoms may include peripheral components; SCS may have a considerable effect on intractable pain. Even when the SCS electrode lead cannot be positioned in the target area, 1-kHz high-frequency SCS may still produce positive effects.
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Affiliation(s)
- Chiaki Yamada
- Department of Anesthesiology and Critical Care Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - Aiko Maeda
- Operating Rooms, Kyushu University Hospital, 3-1-1 Maedashi Higashi-ku, Fukuoka-city, Fukuoka, 812-8582, Japan.
| | - Katsuyuki Matsushita
- Operating Rooms, Kyushu University Hospital, 3-1-1 Maedashi Higashi-ku, Fukuoka-city, Fukuoka, 812-8582, Japan
| | - Shoko Nakayama
- Operating Rooms, Kyushu University Hospital, 3-1-1 Maedashi Higashi-ku, Fukuoka-city, Fukuoka, 812-8582, Japan
| | - Kazuhiro Shirozu
- Department of Anesthesiology and Critical Care Medicine, Kyushu University Graduate School of Medicine, Fukuoka, Japan
| | - Ken Yamaura
- Department of Anesthesiology and Critical Care Medicine, Kyushu University Graduate School of Medicine, Fukuoka, Japan
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14
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Yamada C, Ho A, Akkaoui J, Garcia C, Duarte C, Movila A. Glycyrrhizin mitigates inflammatory bone loss and promotes expression of senescence-protective sirtuins in an aging mouse model of periprosthetic osteolysis. Biomed Pharmacother 2021; 138:111503. [PMID: 33770668 PMCID: PMC8653540 DOI: 10.1016/j.biopha.2021.111503] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [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: 12/02/2020] [Revised: 03/08/2021] [Accepted: 03/11/2021] [Indexed: 01/02/2023] Open
Abstract
Although periprosthetic osteolysis induced by wear debris particles is significantly elevated in senior (65+ years old) patients, most of the published pre-clinical studies were performed using young (less than three-month old) mice indicating the critical need to employ experimental models of particle-induced osteolysis involving mice with advanced age. Emerging evidence indicates that currently available antiresorptive bone therapies have serious age-dependent side effects. However, a resurgence of healthcare interest has occurred in glycyrrhizin (GLY), a natural extract from the licorice roots, as alternative sources of drugs for treating inflammatory bone lytic diseases and prevention of cellular senescence. This study investigated the effects of GLY on inflammatory bone loss as well as expression patterns of senescence-associated secretory phenotype and senescence-protective markers using an experimental calvarium osteolytic model induced in aged (twenty-four-month-old) mice by polymethylmethacrylate (PMMA) particles. Our results indicate that local treatment with GLY significantly diminished the size of inflammatory osteolytic lesions in aged mice via the number of CXCR4+OCPs and Tartrate-resistant acid phosphatase positive (TRAP+) osteoclasts. Furthermore, GLY dramatically decreased the amounts of senescence-associated secretory phenotype markers, including pro-inflammatory macrophage migration inhibitory factor (MIF) chemokine, and cathepsins B and K in the bone lesions of aged mice. By contrast, GLY significantly elevated expression patterns of senescence-protective markers, including homeostatic stromal derived factor-1 (SDF-1) chemokine, and sirtuin-1, and sirtuin-6, in the PMMA particle-induced calvarial lesions of aged mice. Collectively, these data suggest that GLY can be used for the development of novel therapies to control bone loss and tissue aging in senior patients with periprosthetic osteolysis.
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Affiliation(s)
- Chiaki Yamada
- Department of Oral Science and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL 33314, United States
| | - Anny Ho
- Department of Oral Science and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL 33314, United States
| | - Juliet Akkaoui
- Department of Oral Science and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL 33314, United States
| | - Christopher Garcia
- Department of Oral Science and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL 33314, United States
| | - Carolina Duarte
- Department of Oral Science and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL 33314, United States
| | - Alexandru Movila
- Department of Oral Science and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL 33314, United States.
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Furumaki H, Takeshita A, Ohto H, Yamada C, Fujihara H, Ishizuka K, Shibata H, Shinba T, Nemoto N, Ino K, Ozawa A, Watanabe H, Kawabata K, Obata Y. A newly devised flow cytometric antibody binding assay helps evaluation of dithiothreitol treatment for the inactivation of CD38 on red blood cells. Vox Sang 2020; 116:725-734. [PMID: 33314130 DOI: 10.1111/vox.13052] [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: 09/03/2020] [Revised: 11/27/2020] [Accepted: 11/29/2020] [Indexed: 01/21/2023]
Abstract
BACKGROUND AND OBJECTIVES Anti-CD38 monoclonal antibodies, including daratumumab and isatuximab, often interfere with pretransfusion testing. Dithiothreitol (DTT) treatment of red blood cells (RBCs) negates this interference. However, the optimum DTT concentration and treatment time have not been well defined. Here, we quantified CD38 on RBCs before and after DTT treatment using a flow cytometric antibody binding assay (FABA) to specify the optimum conditions for CD38 inactivation. MATERIALS AND METHODS For FABA, untreated or DTT-treated RBCs were incubated with fluorescein isothiocyanate-labelled anti-CD38 antibody, in the presence or absence of 100-fold or more excess of unlabelled anti-CD38 antibody, and then analysed by flow cytometry (FCM). Dissociation of CD38-positive and control histograms was determined from the D-value using the Kolmogorov-Smirnov test. The results from FABA were compared with those from conventional FCM, indirect antiglobulin test (IAT) and Western blotting. RESULTS The results from FABA were more consistent than those from conventional FCM. The D-value was found to be reliable in the analysis of difference between CD38 before and after DTT treatment. Our data showed that 0·0075 mol/l DTT for 30 min is sufficient to inactivate CD38 on RBCs. These results were stable and consistent with the findings from IAT. CONCLUSION Flow cytometric antibody binding assay is an objective way of evaluating the efficacy of DTT treatment for CD38 on RBCs. This approach allows the detection of a small number of cell surface antigens and will be useful for assessing the various chemical treatments to denature RBC antigens.
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Affiliation(s)
- Hiroaki Furumaki
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Akihiro Takeshita
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Hitoshi Ohto
- Department of Blood Transfusion and Transplantation Immunology, Fukushima Medical University, Fukushima, Japan
| | - Chiaki Yamada
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Harumi Fujihara
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Keiko Ishizuka
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Hiroki Shibata
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Takahito Shinba
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Naoki Nemoto
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Kaede Ino
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Akari Ozawa
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Hiroko Watanabe
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Kinuyo Kawabata
- Department of Blood Transfusion and Transplantation Immunology, Fukushima Medical University, Fukushima, Japan
| | - Yukako Obata
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, Japan
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16
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Yamada C, Akkaoui J, Ho A, Duarte C, Deth R, Kawai T, Nichols F, Lakshmana MK, Movila A. Potential Role of Phosphoglycerol Dihydroceramide Produced by Periodontal Pathogen Porphyromonas gingivalis in the Pathogenesis of Alzheimer's Disease. Front Immunol 2020; 11:591571. [PMID: 33329577 PMCID: PMC7719741 DOI: 10.3389/fimmu.2020.591571] [Citation(s) in RCA: 5] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 10/20/2020] [Indexed: 11/21/2022] Open
Abstract
Background Among different types of sphingolipids produced by human cells, the possible engagement of ceramide species in the pathogenesis of Alzheimer’s disease (AD) has attracted recent attention. While ceramides are primarily generated by de novo synthesis in mammalian cells, only a limited number of bacterial species, produce ceramides, including phosphoglycerol dihydroceramide (PGDHC) that is produced by the key periodontal pathogen Porphyromonas gingivalis. Emerging evidence indicates that virulence factors produced by P. gingivalis, such as lipopolysaccharide and gingipain, may be engaged in the initiation and/or progression of AD. However, the potential role of PGDHC in the pathogenesis of AD remains unknown. Therefore, the aim of this study was to evaluate the influence of PGDHC on hallmark findings in AD. Material and Methods CHO-7WD10 and SH-SY-5Y cells were exposed to PGDHC and lipopolysaccharide (LPS) isolated from P. gingivalis. Soluble Aβ42 peptide, amyloid precursor protein (APP), phosphorylated tau and senescence-associated secretory phenotype (SASP) factors were quantified using ELISA and Western blot assays. Results Our results indicate that P. gingivalis (Pg)-derived PGDHC, but not Pg-LPS, upregulated secretion of soluble Aβ42 peptide and expression of APP in CHO-7WD10 cells. Furthermore, hyperphosphorylation of tau protein was observed in SH-SY-5Y cells in response to PGDHC lipid. In contrast, Pg-LPS had little, or no significant effect on the tau phosphorylation induced in SH-SY-5Y cells. However, both PGDHC and Pg-LPS contributed to the senescence of SH-SY5Y cells as indicated by the production of senescence-associated secretory phenotype (SASP) markers, including beta-galactosidase, cathepsin B (CtsB), and pro-inflammatory cytokines TNF-α, and IL-6. Additionally, PGDHC diminished expression of the senescence-protection marker sirtuin-1 in SH-SY-5Y cells. Conclusions Altogether, our results indicate that P. gingivalis-derived PGDHC ceramide promotes amyloidogenesis and hyperphosphorylation, as well as the production of SASP factors. Thus, PGDHC may represent a novel class of bacterial-derived virulence factors for AD associated with periodontitis.
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Affiliation(s)
- Chiaki Yamada
- College of Dental Medicine, Nova Southeastern University, Ft. Lauderdale, FL, United States
| | - Juliet Akkaoui
- College of Dental Medicine, Nova Southeastern University, Ft. Lauderdale, FL, United States
| | - Anny Ho
- College of Dental Medicine, Nova Southeastern University, Ft. Lauderdale, FL, United States
| | - Carolina Duarte
- College of Dental Medicine, Nova Southeastern University, Ft. Lauderdale, FL, United States
| | - Richard Deth
- College of Pharmacy, Nova Southeastern University, Ft. Lauderdale, FL, United States
| | - Toshihisa Kawai
- College of Dental Medicine, Nova Southeastern University, Ft. Lauderdale, FL, United States
| | - Frank Nichols
- School of Dental Medicine, The University of Connecticut Health Center, Farmington, CT, United States
| | - Madepalli K Lakshmana
- Herbert Wertheim College of Medicine, Florida International University, Miami, FL, United States
| | - Alexandru Movila
- College of Dental Medicine, Nova Southeastern University, Ft. Lauderdale, FL, United States.,Institute for Neuro-Immune Medicine, Nova Southeastern University, Ft. Lauderdale, FL, United States
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Takeshita A, Watanabe H, Yamada C, Nadarajan VS, Permpikul P, Sinkitjasub A, Natalie CPH, Zhao S, Han KS, Kim DW, Suh JS, Kim HO, Kawabata K, Ishimaru K, Ohtomo N, Yamada N, Tomoda Y, Yurugi K, Ohto H. Erythrocyte Alloimmunity and Genetic Variance: Results from the Collaborative Study of Alloimmunity to Antigen Diversity in Asian Populations (All ADP). Transfus Apher Sci 2020; 59:102944. [PMID: 33228922 DOI: 10.1016/j.transci.2020.102944] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
As an East-Asian international study, we evaluated erythrocyte alloimmunity by gender and history of transfusion or pregnancy. In total, data from more than 1,826,000 patients were analyzed, from whom 26,170 irregular erythrocyte antibodies were detected in 22,653 cases. Antibody frequencies in these cases were as follows: anti-E, 26.8%; anti-Lea, 20.0%; anti-P1, 7.1%; anti-M, 6.4%; anti-Mia, 5.6%; anti-c + E, 5.6%; anti-Leb, 4.6%; anti-D, 2.8%; anti-Fyb, 2.6%; anti-Lea+Leb, 2.5%; anti-Dia, 2.0%; and others. For pregnant patients, anti-D (12.7%) was statistically more frequent. For transfused patients, anti-E (37.3%), anti-c + E (9.5%), anti-C + e (3.3%) and anti-Jka (3.1%) were significantly more frequent.
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Affiliation(s)
- Akihiro Takeshita
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, Japan.
| | - Hiroko Watanabe
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Chiaki Yamada
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | | | - Parichart Permpikul
- Transfusion Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Attapong Sinkitjasub
- Blood Bank, Taksin Hospital, Medical Service Department of Bangkok Metropolitan, Bangkok, Thailand
| | - Chan Pui Ha Natalie
- Blood Bank, Prince of Wales Hospital, Hong Kong Special Administrative Region
| | - Shuming Zhao
- Transfusion Medicine, Southwest Hospital, Third Military Medical University, Chongqing, China
| | | | - Dae Won Kim
- Laboratory Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Soul, South Korea
| | - Jang Soo Suh
- Laboratory Medicine, Kyungpook National University Hospital, Kyungpook National University, School of Medicine, Daegu, South Korea
| | - Hyun Ok Kim
- Laboratory Medicine, Yonsei University College of Medicine, Soul, South Korea
| | - Kinuyo Kawabata
- Blood Transfusion and Transplantation Immunology, Fukushima Medical University, Fukushima, Japan
| | - Ken Ishimaru
- Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - Naoki Ohtomo
- Center for Transfusion Medicine and Cell Therapy, Tokyo Medical and Dental University, Tokyo, Japan
| | - Naotomo Yamada
- Department of Transfusion Medicine, Saga University, Saga, Japan
| | - Yutaka Tomoda
- Laboratory Medicine, Asahikawa Medical University, Asahikawa, Japan
| | - Kimiko Yurugi
- Clinical Laboratory, Kyoto University Hospital, Kyoto, Japan
| | - Hitoshi Ohto
- Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
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18
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Duarte C, Akkaoui J, Yamada C, Ho A, Mao C, Movila A. Elusive Roles of the Different Ceramidases in Human Health, Pathophysiology, and Tissue Regeneration. Cells 2020; 9:cells9061379. [PMID: 32498325 PMCID: PMC7349419 DOI: 10.3390/cells9061379] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 05/25/2020] [Accepted: 05/27/2020] [Indexed: 12/29/2022] Open
Abstract
Ceramide and sphingosine are important interconvertible sphingolipid metabolites which govern various signaling pathways related to different aspects of cell survival and senescence. The conversion of ceramide into sphingosine is mediated by ceramidases. Altogether, five human ceramidases—named acid ceramidase, neutral ceramidase, alkaline ceramidase 1, alkaline ceramidase 2, and alkaline ceramidase 3—have been identified as having maximal activities in acidic, neutral, and alkaline environments, respectively. All five ceramidases have received increased attention for their implications in various diseases, including cancer, Alzheimer’s disease, and Farber disease. Furthermore, the potential anti-inflammatory and anti-apoptotic effects of ceramidases in host cells exposed to pathogenic bacteria and viruses have also been demonstrated. While ceramidases have been a subject of study in recent decades, our knowledge of their pathophysiology remains limited. Thus, this review provides a critical evaluation and interpretive analysis of existing literature on the role of acid, neutral, and alkaline ceramidases in relation to human health and various diseases, including cancer, neurodegenerative diseases, and infectious diseases. In addition, the essential impact of ceramidases on tissue regeneration, as well as their usefulness in enzyme replacement therapy, is also discussed.
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Affiliation(s)
- Carolina Duarte
- Department of Periodontology, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL 33324, USA; (J.A.); (C.Y.); (A.H.)
- Correspondence: (C.D.); (A.M.); Tel.: +1-954-262-7306 (A.M.)
| | - Juliet Akkaoui
- Department of Periodontology, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL 33324, USA; (J.A.); (C.Y.); (A.H.)
| | - Chiaki Yamada
- Department of Periodontology, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL 33324, USA; (J.A.); (C.Y.); (A.H.)
| | - Anny Ho
- Department of Periodontology, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL 33324, USA; (J.A.); (C.Y.); (A.H.)
| | - Cungui Mao
- Department of Medicine, The State University of New York at Stony Brook, Stony Brook, NY 11794, USA;
- Cancer Center, The State University of New York at Stony Brook, Stony Brook, NY 11794, USA
| | - Alexandru Movila
- Department of Periodontology, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL 33324, USA; (J.A.); (C.Y.); (A.H.)
- Institute for Neuro-Immune Medicine, Nova Southeastern University, Fort Lauderdale, FL 33324, USA
- Correspondence: (C.D.); (A.M.); Tel.: +1-954-262-7306 (A.M.)
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19
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Yamada C, Takeshita A, Ohto H, Ishimaru K, Kawabata K, Nomaguchi Y, Haraguchi Y, Abe M, Sobue K, Takenouchi H, Takadate J, Kamimura M, Katai A, Kasai D, Minami Y, Sugimoto T, Michino J, Nagai K, Kumagai M, Hasegawa Y, Ishizuka K, Ohtomo N, Yamada N, Muroi K, Matsushita T, Takahashi K. A Japanese multi‐institutional collaborative study of antigen‐positive red blood cell (RBC) transfusions in patients with corresponding RBC antibodies. Vox Sang 2020; 115:456-465. [DOI: 10.1111/vox.12906] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 02/05/2020] [Accepted: 02/10/2020] [Indexed: 11/29/2022]
Affiliation(s)
- Chiaki Yamada
- Transfusion and Cell Therapy Hamamatsu University School of Medicine Hamamatsu Japan
| | - Akihiro Takeshita
- Transfusion and Cell Therapy Hamamatsu University School of Medicine Hamamatsu Japan
| | - Hitoshi Ohto
- Department of Blood Transfusion and Transplantation Immunology Fukushima Medical University Fukushima Japan
| | - Ken Ishimaru
- Blood Service Headquarters Japanese Red Cross Society Minato‐ku Japan
| | - Kinuyo Kawabata
- Department of Blood Transfusion and Transplantation Immunology Fukushima Medical University Fukushima Japan
| | - Yuriko Nomaguchi
- Division of Transfusion Medicine Fukuoka University Fukuoka Japan
| | - Yasue Haraguchi
- Department of Blood Transfusion Medicine and Cell Therapy Kagoshima University Kagoshima Japan
| | - Misao Abe
- Blood Transfusion & Cell Therapy Kansai Medical University Moriguchi Japan
| | - Koki Sobue
- Division of Blood Transfusion Toho University Ota‐ku Japan
| | - Hiroyuki Takenouchi
- Department of Transfusion and Cell Therapy University of Miyazaki Miyazaki Japan
| | - Junko Takadate
- Division of Central Clinical Laboratory Iwate Medical University Morioka Japan
| | - Masami Kamimura
- Division of Blood Transfusion Niigata University Niigata Japan
| | - Akiko Katai
- Department of Transfusion Medicine Aichi Medical University Aichi‐gun Japan
| | - Daisuke Kasai
- Department of Clinical Laboratory Nagano Municipal Hospital Nagano Japan
| | - Yumiko Minami
- Division of Transfusion Medicine Osaka Medical College Takatsuki Japan
| | - Tatsuya Sugimoto
- Division of Medical Technology and Department of Blood Transfusion Service Tokai University Isehara Japan
| | - Junko Michino
- Division of Clinical Laboratory, Transfusion Medicine and Cell Therapy University of Toyama Toyama Japan
| | - Kazuhiro Nagai
- Transfusion and Cell Therapy Unit Nagasaki University Nagasaki Japan
| | - Mikako Kumagai
- Division of Blood Transfusion Akita University Akita Japan
| | - Yuichi Hasegawa
- Department of Transfusion Medicine University of Tsukuba Tsukuba Japan
| | - Keiko Ishizuka
- Transfusion and Cell Therapy Hamamatsu University School of Medicine Hamamatsu Japan
| | - Naoki Ohtomo
- Center for Transfusion Medicine and Cell Therapy Tokyo Medical and Dental University Bunkyo‐ku Japan
| | - Naotomo Yamada
- Department of Transfusion Medicine Saga University Saga Japan
| | - Kazuo Muroi
- Division of Cell Transplantation and Transfusion Jichi Medical University Shimotsuke Japan
| | | | - Koki Takahashi
- Blood Service Headquarters Japanese Red Cross Society Minato‐ku Japan
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20
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Yamada C, Beron-Pelusso C, Algazzaz N, Heidari A, Luz D, Rawas-Qalaji M, Toderas I, Mascarenhas AK, Kawai T, Movila A. Age-dependent effect between MARCO and TLR4 on PMMA particle phagocytosis by macrophages. J Cell Mol Med 2019; 23:5827-5831. [PMID: 31225947 PMCID: PMC6653467 DOI: 10.1111/jcmm.14494] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 03/25/2019] [Revised: 05/22/2019] [Accepted: 05/26/2019] [Indexed: 12/21/2022] Open
Abstract
Progressive generation of total joint implant-derived wear particles is one of the major risk factors in development of peri-prosthetic osteolysis especially in the aging society. It is commonly accepted that macrophages predominantly drive the inflammatory response to wear debris particles. Among various surface receptors that activate the macrophages to phagocytize particles, it is believed that the Toll-like receptor 4 (TLR4) and the scavenger macrophage receptor with collagenous structure (MARCO) play key roles in recognition of wear debris particles. However, a strong body of evidence indicates an age-dependent diminished function of human TLRs. Thus, we hypothesized that the MARCO receptor may be more engaged than TLRs in the phagocytosis of wear debris particles which in turn up-regulate production of pro-inflammatory cytokines from aged macrophages. We demonstrated that peritoneal macrophages isolated from aged mice show elevated expression of MARCO receptor compared to that from young mice. In contrast the expression of TLR4 was significantly decreased on the surface of aged macrophages. Furthermore, using anti-MARCO and anti-TLR4 neutralizing mAbs, we demonstrated the age-dependent pathogenic role of MARCO, but not TLR4, receptor in promoting poly-methyl methacrylate (PMMA) bone cement particles phagocytosis by macrophages leading to the release of pro-inflammatory cytokines migration inhibitory factor and tumour necrosis factor in vitro. These data also suggest that the approach to neutralize MARCO may lead to the development of therapeutic regimen for the prevention of particle-induced osteolysis in aged patients.
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Affiliation(s)
- Chiaki Yamada
- College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, Florida
| | - Camila Beron-Pelusso
- College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, Florida
| | - Neira Algazzaz
- Halmos College of Natural Science and Oceanography, Nova Southeastern University, Fort Lauderdale, Florida
| | - Alireza Heidari
- College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, Florida
| | - Diogo Luz
- College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, Florida
| | | | - Ion Toderas
- Institute of Zoology, Academy of Sciences of Moldova, Chisinau, Republic of Moldova
| | | | - Toshihisa Kawai
- College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, Florida
| | - Alexandru Movila
- College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, Florida.,Halmos College of Natural Science and Oceanography, Nova Southeastern University, Fort Lauderdale, Florida.,Institute of Zoology, Academy of Sciences of Moldova, Chisinau, Republic of Moldova.,Institute for Neuro-Immune Medicine, Nova Southeastern University, Fort Lauderdale, Florida
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21
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Howait M, Albassam A, Yamada C, Sasaki H, Bahammam L, Azuma MM, Cintra LTA, Satoskar AR, Yamada S, White R, Kawai T, Movila A. Elevated Expression of Macrophage Migration Inhibitory Factor Promotes Inflammatory Bone Resorption Induced in a Mouse Model of Periradicular Periodontitis. J Immunol 2019; 202:2035-2043. [PMID: 30737274 DOI: 10.4049/jimmunol.1801161] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 01/15/2019] [Indexed: 12/23/2022]
Abstract
Locally produced osteoclastogenic factor RANKL plays a critical role in the development of bone resorption in periradicular periodontitis. However, because RANKL is also required for healthy bone remodeling, it is plausible that a costimulatory molecule that upregulates RANKL production in inflammatory periradicular periodontitis may be involved in the pathogenic bone loss processes. We hypothesized that macrophage migration inhibitory factor (MIF) would play a role in upregulating the RANKL-mediated osteoclastogenesis in the periradicular lesion. In response to pulp exposure, the bone loss and level of MIF mRNA increased in the periradicular periodontitis, which peaked at 14 d, in conjunction with the upregulated expressions of mRNAs for RANKL, proinflammatory cytokines (TNF-α, IL-6, and IL-1β), chemokines (MCP-1 and SDF-1), and MIF's cognate receptors CXCR4 and CD74. Furthermore, expressions of those mRNAs were found significantly higher in wild-type mice compared with that of MIF-/- mice. In contrast, bacterial LPS elicited the production of MIF from ligament fibroblasts in vitro, which, in turn, enhanced their productions of RANKL and TNF-α. rMIF significantly upregulated the number of TRAP+ osteoclasts in vitro. Finally, periapical bone loss induced in wild-type mice were significantly diminished in MIF-/- mice. Altogether, the current study demonstrated that MIF appeared to function as a key costimulatory molecule to upregulate RANKL-mediated osteoclastogenesis, leading to the pathogenically augmented bone resorption in periradicular lesions. These data also suggest that the approach to neutralize MIF activity may lead to the development of a therapeutic regimen for the prevention of pathogenic bone loss in periradicular periodontitis.
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Affiliation(s)
- Mohammed Howait
- School of Dental Medicine, Harvard University, Boston, MA 02115.,Faculty of Dentistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia.,The Forsyth Institute, Cambridge, MA 02142
| | - Abdullah Albassam
- School of Dental Medicine, Harvard University, Boston, MA 02115.,Faculty of Dentistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia.,The Forsyth Institute, Cambridge, MA 02142
| | - Chiaki Yamada
- College of Dental Medicine, Nova Southeastern University, Ft. Lauderdale, FL 33324
| | - Hajime Sasaki
- School of Dental Medicine, Harvard University, Boston, MA 02115.,The Forsyth Institute, Cambridge, MA 02142.,School of Dentistry, University of Michigan, Ann Arbor, MI 48109
| | - Laila Bahammam
- Faculty of Dentistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Mariane Maffei Azuma
- The Forsyth Institute, Cambridge, MA 02142.,School of Dentistry, University of Michigan, Ann Arbor, MI 48109
| | | | - Abhay R Satoskar
- Department of Microbiology, The Ohio State University, Columbus, OH 43210; and
| | - Satoru Yamada
- Graduate School of Dentistry, Tohoku University, Tohoku, Sendai 980-8575, Japan
| | - Robert White
- School of Dental Medicine, Harvard University, Boston, MA 02115
| | - Toshihisa Kawai
- College of Dental Medicine, Nova Southeastern University, Ft. Lauderdale, FL 33324
| | - Alexandru Movila
- School of Dental Medicine, Harvard University, Boston, MA 02115; .,The Forsyth Institute, Cambridge, MA 02142.,College of Dental Medicine, Nova Southeastern University, Ft. Lauderdale, FL 33324
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22
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23
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Morita Y, Murata T, Ueda A, Yamada C, Kanzaki Y, Shiomi D, Sato K, Takui T. Trioxotriangulene: Air- and Thermally Stable Organic Carbon-Centered Neutral π-Radical without Steric Protection. BCSJ 2018. [DOI: 10.1246/bcsj.20180074] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yasushi Morita
- Department of Applied Chemistry, Faculty of Engineering, Aichi Institute of Technology, Toyota, Aichi 470-0392, Japan
| | - Tsuyoshi Murata
- Department of Applied Chemistry, Faculty of Engineering, Aichi Institute of Technology, Toyota, Aichi 470-0392, Japan
| | - Akira Ueda
- The Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - Chiaki Yamada
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Yuki Kanzaki
- Department of Chemistry and Molecular Materials Science, Graduate School of Science, Osaka City University, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Daisuke Shiomi
- Department of Chemistry and Molecular Materials Science, Graduate School of Science, Osaka City University, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Kazunobu Sato
- Department of Chemistry and Molecular Materials Science, Graduate School of Science, Osaka City University, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Takeji Takui
- Department of Chemistry and Molecular Materials Science, Graduate School of Science, Osaka City University, Sumiyoshi-ku, Osaka 558-8585, Japan
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24
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Lazarini SC, Yamada C, Barud HS, Trovatti E, Corbi PP, Lustri WR. Influence of chemical and physical conditions in selection of Gluconacetobacter hansenii ATCC 23769 strains with high capacity to produce bacterial cellulose for application as sustained antimicrobial drug-release supports. J Appl Microbiol 2018; 125:777-791. [PMID: 29762885 DOI: 10.1111/jam.13916] [Citation(s) in RCA: 10] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 05/04/2018] [Accepted: 05/09/2018] [Indexed: 02/05/2023]
Abstract
AIMS Obtain varieties of Gluconacetobacter hansenii from original strain ATCC 23729 with greater efficiency to produce bacterial cellulose (BC) membrane with better dry mass yield for application as support of sustained antimicrobials' drug release. METHODS AND RESULTS Application of different chemical and physical conditions (pH, temperature and UV light exposure) to obtain different G. hansenii varieties with high capacity to produce BC membranes. Characterization of the G. hansenii variants was performed by scanning electron microscopy (SEM) and optical microscopy of the colony-forming units. BC membrane produced was characterized by SEM, infrared spectroscopy and X-ray diffraction. The BC produced by variants isolated after incubation at 35°C showed elevated dry mass yield and high capacity of retention and sustained release of ceftriaxone antibiotic with the produced BC by original G. hansenii ATCC 23769 strain subjected to incubation at 28°C and with commercial BC. CONCLUSION The application of different chemical and physical conditions constitutes an important method to obtain varieties of micro-organisms with dissimilar metabolism advantageous in relation to the original strain in the BC production. SIGNIFICANCE AND IMPACT OF THE STUDY These results demonstrate the importance of in vivo studies for the application, in medicine, of BC membranes as support for antimicrobial-sustained release for the skin wound treatment.
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Affiliation(s)
- S C Lazarini
- Department of Biological and Health Sciences, University of Araraquara, UNIARA, São Paulo, Brazil
| | - C Yamada
- Department of Biological and Health Sciences, University of Araraquara, UNIARA, São Paulo, Brazil
| | - H S Barud
- Department of Biological and Health Sciences, University of Araraquara, UNIARA, São Paulo, Brazil
| | - E Trovatti
- Department of Biological and Health Sciences, University of Araraquara, UNIARA, São Paulo, Brazil
| | - P P Corbi
- Institute of Chemistry, University of Campinas, UNICAMP, Campinas-SP, Brazil
| | - W R Lustri
- Department of Biological and Health Sciences, University of Araraquara, UNIARA, São Paulo, Brazil
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25
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Anzai E, Hirata K, Shibazaki M, Yamada C, Morii M, Honda T, Yamaguchi N, Yamaguchi N. FOXA1 Induces E-Cadherin Expression at the Protein Level via Suppression of Slug in Epithelial Breast Cancer Cells. Biol Pharm Bull 2018; 40:1483-1489. [PMID: 28867731 DOI: 10.1248/bpb.b17-00307] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Epithelial-to-mesenchymal transition (EMT) is an important process during embryonic development and tumor progression by which adherent epithelial cells acquire mesenchymal properties. Forkhead box protein A1 (FOXA1) is a transcriptional regulator preferentially expressed in epithelial breast cancer cells, and its expression is lost in mesenchymal breast cancer cells. However, the implication of this biased expression of FOXA1 in breast cancer is not fully understood. In this study, we analyzed the involvement of FOXA1 in EMT progression in breast cancer, and found that stable expression of FOXA1 in the mesenchymal breast cancer MDA-MB-231 cells strongly induced the epithelial marker E-cadherin at the mRNA and protein levels. Furthermore, stable expression of FOXA1 was found to reduce the mRNA and protein expression of Slug, a repressor of E-cadherin expression. FOXA1 knockdown in the epithelial breast cancer MCF7 cells reduced E-cadherin protein expression without decreasing its mRNA expression. In addition, FOXA1 knockdown in MCF7 cells up-regulated Slug mRNA and protein expression. Notably, similar to FOXA1 knockdown, stable expression of Slug in MCF7 cells reduced E-cadherin protein expression without decreasing its mRNA expression. Taken together, these results suggest that although FOXA1 can induce E-cadherin mRNA expression, it preferentially promotes E-cadherin expression at the protein level by suppressing Slug expression in epithelial breast cancer, and that the balance of this FOXA1-Slug axis regulates EMT progression.
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Affiliation(s)
- Erina Anzai
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University
| | - Kensuke Hirata
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University
| | - Misato Shibazaki
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University
| | - Chiaki Yamada
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University
| | - Mariko Morii
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University
| | - Takuya Honda
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University
| | - Naoto Yamaguchi
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University
| | - Noritaka Yamaguchi
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University
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26
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Lintuluoto M, Yamada C, Lintuluoto JM. QM/MM Calculation of the Enzyme Catalytic Cycle Mechanism for Copper- and Zinc-Containing Superoxide Dismutase. J Phys Chem B 2017; 121:7235-7246. [DOI: 10.1021/acs.jpcb.7b03589] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Masami Lintuluoto
- Graduate
School of Life and Environmental Sciences, Kyoto Prefectural University, Shimogamohanki-cho, Sakyo, Kyoto 606-8522, Japan
| | - Chiaki Yamada
- Graduate
School of Life and Environmental Sciences, Kyoto Prefectural University, Shimogamohanki-cho, Sakyo, Kyoto 606-8522, Japan
| | - Juha M. Lintuluoto
- Graduate
School of Engineering, Kyoto University, Katsura Campus, Nishikyo-ku, Kyoto 615-8530, Japan
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27
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Yamaguchi N, Shibazaki M, Yamada C, Anzai E, Morii M, Nakayama Y, Kuga T, Hashimoto Y, Tomonaga T, Yamaguchi N. Tyrosine Phosphorylation of the Pioneer Transcription Factor FoxA1 Promotes Activation of Estrogen Signaling. J Cell Biochem 2016; 118:1453-1461. [DOI: 10.1002/jcb.25804] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Accepted: 11/21/2016] [Indexed: 01/04/2023]
Affiliation(s)
- Noritaka Yamaguchi
- Laboratory of Molecular Cell BiologyGraduate School of Pharmaceutical SciencesChiba UniversityChiba260‐8675Japan
| | - Misato Shibazaki
- Laboratory of Molecular Cell BiologyGraduate School of Pharmaceutical SciencesChiba UniversityChiba260‐8675Japan
| | - Chiaki Yamada
- Laboratory of Molecular Cell BiologyGraduate School of Pharmaceutical SciencesChiba UniversityChiba260‐8675Japan
| | - Erina Anzai
- Laboratory of Molecular Cell BiologyGraduate School of Pharmaceutical SciencesChiba UniversityChiba260‐8675Japan
| | - Mariko Morii
- Laboratory of Molecular Cell BiologyGraduate School of Pharmaceutical SciencesChiba UniversityChiba260‐8675Japan
| | - Yuji Nakayama
- Department of Biochemistry and Molecular BiologyKyoto Pharmaceutical UniversityKyoto607‐8414Japan
| | - Takahisa Kuga
- Department of Biochemistry and Molecular BiologyKyoto Pharmaceutical UniversityKyoto607‐8414Japan
| | - Yuuki Hashimoto
- Laboratory of Proteome ResearchNational Institutes of Biomedical InnovationHealth and NutritionIbarakiOsaka567‐0085Japan
| | - Takeshi Tomonaga
- Laboratory of Proteome ResearchNational Institutes of Biomedical InnovationHealth and NutritionIbarakiOsaka567‐0085Japan
| | - Naoto Yamaguchi
- Laboratory of Molecular Cell BiologyGraduate School of Pharmaceutical SciencesChiba UniversityChiba260‐8675Japan
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28
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Abstract
Asymmetric growth occurs frequently in the mandibulofacial region, but little attention has been given to asymmetry in the temporomandibular joint. The purpose of this study was to clarify the feature of asymmetry in the condylar long axis and its relation to upper first molar rotation. Records of 148 pre-orthodontic patients were used. The angle of the condylar long axis and that of the molar rotation were both larger on the left side than on the right side. Positive correlations were found between the corresponding bilateral measurements of condylar long axes and also between those of molar rotations, whereas no correlation was found between the condylar long axis and molar rotation. These findings were found in most subgroups classified by dental age, skeletal pattern, bite force balance, or gender. These results suggest that consistent left-right differences in the condylar long axis and first molar rotation are common.
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Affiliation(s)
- R Kanomi
- Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Osaka University, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
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Yamada C, Takahata S, Nakagawa K, Yamamoto N, Kogo M. Brain abscess secondary to medication-induced osteonecrosis of the jaw. Journal of Oral and Maxillofacial Surgery, Medicine, and Pathology 2016. [DOI: 10.1016/j.ajoms.2016.04.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Ohishi K, Matsumoto T, Tanaka Y, Makino S, Tamaki S, Mori K, Fujimori Y, Ikemoto J, Iwao N, Kato H, Kino S, Takeshita A, Yamada C, Fujii S, Watanabe N, Otsuka K, Yamamoto K, Hoshino K, Miyazaki K, Maeda H, Miyata S. PROTOCOL FOR THE IN-HOUSE PRODUCTION OF CRYOPRECIPITATE. ACTA ACUST UNITED AC 2016. [DOI: 10.3925/jjtc.62.664] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Kohshi Ohishi
- Blood Transfusion Service, Mie University Hospital
- Task Force on Standardized Methods for In-house Cryoprecipitate Production, Committee on Appropriate Blood Product Modifications. The Japan Society of Transfusion Medicine and Cell Therapy
| | - Takeshi Matsumoto
- Blood Transfusion Service, Mie University Hospital
- Task Force on Standardized Methods for In-house Cryoprecipitate Production, Committee on Appropriate Blood Product Modifications. The Japan Society of Transfusion Medicine and Cell Therapy
| | - Yumi Tanaka
- Blood Transfusion Service, Mie University Hospital
| | - Shigeyoshi Makino
- Department of Transfusion Medicine, Toranomon Hospital
- Task Force on Standardized Methods for In-house Cryoprecipitate Production, Committee on Appropriate Blood Product Modifications. The Japan Society of Transfusion Medicine and Cell Therapy
| | - Shigehisa Tamaki
- Department of Blood Transfusion and Cell Therapy, Ise Red Cross Hospital
- Task Force on Standardized Methods for In-house Cryoprecipitate Production, Committee on Appropriate Blood Product Modifications. The Japan Society of Transfusion Medicine and Cell Therapy
| | - Keiko Mori
- Department of Blood Transfusion and Cell Therapy, Ise Red Cross Hospital
| | - Yoshihiro Fujimori
- Center for Transfusion Medicine and Cellular Therapy, Hyogo College of Medicine Hospital
- Task Force on Standardized Methods for In-house Cryoprecipitate Production, Committee on Appropriate Blood Product Modifications. The Japan Society of Transfusion Medicine and Cell Therapy
| | - Junko Ikemoto
- Center for Transfusion Medicine and Cellular Therapy, Hyogo College of Medicine Hospital
| | - Noriaki Iwao
- Department of Hematology, Juntendo University Shizuoka Hospital
- Task Force on Standardized Methods for In-house Cryoprecipitate Production, Committee on Appropriate Blood Product Modifications. The Japan Society of Transfusion Medicine and Cell Therapy
| | - Hidefumi Kato
- Department of Transfusion Medicine, Cell Therapy Center, Aichi Medical University Hospital
- Task Force on Standardized Methods for In-house Cryoprecipitate Production, Committee on Appropriate Blood Product Modifications. The Japan Society of Transfusion Medicine and Cell Therapy
| | - Shuichi Kino
- Japanese Red Cross Hokkaido Block Blood Center
- Task Force on Standardized Methods for In-house Cryoprecipitate Production, Committee on Appropriate Blood Product Modifications. The Japan Society of Transfusion Medicine and Cell Therapy
| | - Akihiro Takeshita
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine
- Task Force on Standardized Methods for In-house Cryoprecipitate Production, Committee on Appropriate Blood Product Modifications. The Japan Society of Transfusion Medicine and Cell Therapy
| | - Chiaki Yamada
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine
| | - Satoshi Fujii
- Department of Laboratory Medicine, Asahikawa Medical University
- Medical Laboratory and Transfusion Center, Asahikawa Medical University Hospital
- Task Force on Standardized Methods for In-house Cryoprecipitate Production, Committee on Appropriate Blood Product Modifications. The Japan Society of Transfusion Medicine and Cell Therapy
| | - Naoki Watanabe
- Medical Laboratory and Transfusion Center, Asahikawa Medical University Hospital
| | - Kohei Otsuka
- Medical Laboratory and Transfusion Center, Asahikawa Medical University Hospital
| | - Koji Yamamoto
- Department of Transfusion Medicine and Cell Therapy, Saitama Medical Center, Saitama Medical University
- Task Force on Standardized Methods for In-house Cryoprecipitate Production, Committee on Appropriate Blood Product Modifications. The Japan Society of Transfusion Medicine and Cell Therapy
| | | | | | - Hiroo Maeda
- Department of Transfusion Medicine and Cell Transplantation, Saitama Medical Center, Saitama Medical University
- Task Force on Standardized Methods for In-house Cryoprecipitate Production, Committee on Appropriate Blood Product Modifications. The Japan Society of Transfusion Medicine and Cell Therapy
| | - Shigeki Miyata
- Division of Transfusion Medicine, National Cerebral and Cardiovascular Center
- Task Force on Standardized Methods for In-house Cryoprecipitate Production, Committee on Appropriate Blood Product Modifications. The Japan Society of Transfusion Medicine and Cell Therapy
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Furumaki H, Fujihara H, Yamada C, Watanabe H, Shibata H, Kaneko M, Nagai S, Ishizuka K, Tsuzuki M, Adachi M, Takeshita A. Involvement of transfusion unit staff in the informed consent process. Transfus Apher Sci 2015; 54:150-7. [PMID: 26878975 DOI: 10.1016/j.transci.2015.12.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 10/10/2015] [Revised: 12/02/2015] [Accepted: 12/18/2015] [Indexed: 02/04/2023]
Abstract
BACKGROUND AND OBJECTIVES Obtaining informed consent (IC) for a blood transfusion is an absolute requirement. In this study, we compared the depth of understanding of blood transfusion among patients with or without an explanation by the transfusion unit staff and evaluated the usefulness of this intervention in obtaining IC. MATERIALS AND METHODS Expert staff from the transfusion unit started to provide patients with a basic explanation of blood transfusion (intervention group, n = 129). The efficacy of this strategy was assessed by comparison with explanation given by the primary doctors only (conventional group, n = 31). We performed a questionnaire survey to analyze the length of time spent providing information of blood transfusion and the depth of understanding of blood transfusion in the two groups. RESULTS The median time in providing information in the conventional and intervention groups was 6 and 20 minutes, respectively (P < 0.0001). Patients in the intervention group had a better understanding of several key points on blood transfusion than those in the conventional group. CONCLUSION Our results show that expert staff from the transfusion unit should be involved in obtaining IC for a blood transfusion. Patients who were provided information by transfusion unit staff were more likely to have a better understanding of the risks and benefits of transfusion.
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Affiliation(s)
- Hiroaki Furumaki
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, 431-3192, Japan
| | - Harumi Fujihara
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, 431-3192, Japan
| | - Chiaki Yamada
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, 431-3192, Japan
| | - Hiroko Watanabe
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, 431-3192, Japan
| | - Hiroki Shibata
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, 431-3192, Japan
| | - Makoto Kaneko
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, 431-3192, Japan
| | - Seiya Nagai
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, 431-3192, Japan
| | - Keiko Ishizuka
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, 431-3192, Japan
| | - Mariko Tsuzuki
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, 431-3192, Japan
| | - Miwa Adachi
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, 431-3192, Japan
| | - Akihiro Takeshita
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, 431-3192, Japan.
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Nakagawa K, Tanaka S, Miyagawa K, Yabuno Y, Ishihara Y, Okuno E, Seki S, Yamada C, Aikawa T, Kogo M. Surgical risk factors for neurosensory impairment after sagittal split osteotomy. Int J Oral Maxillofac Surg 2015. [DOI: 10.1016/j.ijom.2015.08.256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Fujihara H, Yamada C, Furumaki H, Nagai S, Shibata H, Ishizuka K, Watanabe H, Kaneko M, Adachi M, Takeshita A. Evaluation of the in-hospital hemovigilance by introduction of the information technology-based system. Transfusion 2015; 55:2898-904. [PMID: 26173656 DOI: 10.1111/trf.13228] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Revised: 05/31/2015] [Accepted: 06/01/2015] [Indexed: 11/30/2022]
Abstract
BACKGROUND Hemovigilance is an important aspect of transfusion medicine. However, the frequency of the adverse reactions often varies using different reporters. Recently, we have employed a new information technology (IT)-based in-hospital hemovigilance system. Here, we evaluated changes in practice after implementation of an IT-based reporting system. STUDY DESIGN AND METHODS We compared the rate of frequency and details of blood transfusion-related adverse reactions 3 years before and after introduction of the IT-based reporting system. Contents and severity of the adverse reactions were reported in a paper-based reporting system, but input by selecting items in an IT-based reporting system. The details of adverse reactions are immediately sent to the blood transfusion unit online. RESULTS After we introduced the IT-based reporting system, the reported rate of transfusion-related adverse reactions increased approximately 10-fold from 0.20% to 2.18% (p < 0.001), and frequencies of urticaria, pruritus, rash, fever (p < 0.001), hypertension (p = 0.001), tachycardia (p = 0.003), and nausea and vomiting (p = 0.010) increased significantly. Although there was no error report in the paper-based reporting, incorrect reports were observed in 90 cases (0.52%) in the IT-based reporting (p < 0.001). CONCLUSION The advantages of IT-based reporting were: 1) a significant increase in the frequency of adverse reaction reporting and 2) a significant decrease in underreporting, although the true frequency has yet to be clarified. The disadvantage of the IT-based reporting was an increased incidence of incorrect inputs, all of which was unnoticed by the reporters. Our results showed several important points in need of monitoring after introduction of an IT-based reporting system.
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Affiliation(s)
- Harumi Fujihara
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Chiaki Yamada
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Hiroaki Furumaki
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Seiya Nagai
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Hiroki Shibata
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Keiko Ishizuka
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Hiroko Watanabe
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Makoto Kaneko
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Miwa Adachi
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Akihiro Takeshita
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu, Japan
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Nagai S, Yamada C, Fujihara H, Watanabe H, Kaneko M, Shibata H, Furumaki H, Ishizuka K, Shimizu D, Adachi M, Takeshita A. [Management directed at preventing misidentifications by introduction of the computed identification system and blood sampling by the transfusion unit; aim for good partnership between a transfusion unit and bedsides]. Rinsho Byori 2014; 62:749-754. [PMID: 25669025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The initial step of blood transfusion therapy is blood type grouping. ABO-mismatch blood transfusion results in serious adverse effects. Several incidents in the process of blood sampling had been experienced in our hospital since 2006 to 2008. Therefore, we have introduced the computed identification system, and the transfusion unit has taken a part of blood sampling. Just after we introduced it in July 2010, only 7% of the doctors and the nurses used the system in blood sampling. Repeated training programs for doctors and nurses on blood sampling procedure improved the utilization to 95%. We realized the importance of our management in face of its introduction. We have to make continuous efforts on the safety of transfusion therapy, because new type of incidents can appear.
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Nahata M, Saegusa Y, Sadakane C, Yamada C, Nakagawa K, Okubo N, Ohnishi S, Hattori T, Sakamoto N, Takeda H. Administration of exogenous acylated ghrelin or rikkunshito, an endogenous ghrelin enhancer, improves the decrease in postprandial gastric motility in an acute restraint stress mouse model. Neurogastroenterol Motil 2014; 26:821-31. [PMID: 24684160 PMCID: PMC4415484 DOI: 10.1111/nmo.12336] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Accepted: 03/06/2014] [Indexed: 02/08/2023]
Abstract
BACKGROUND Physical or psychological stress causes functional disorders in the upper gastrointestinal tract. This study aims to elucidate the ameliorating effect of exogenous acylated ghrelin or rikkunshito, a Kampo medicine which acts as a ghrelin enhancer, on gastric dysfunction during acute restraint stress in mice. METHODS Fasted and postprandial motor function of the gastric antrum was wirelessly measured using a strain gauge force transducer and solid gastric emptying was detected in mice exposed to restraint stress. Plasma corticosterone and ghrelin levels were also measured. To clarify the role of ghrelin on gastrointestinal dysfunction in mice exposed to stress, exogenous acylated ghrelin or rikkunshito was administered, then the mice were subjected to restraint stress. KEY RESULTS Mice exposed to restraint stress for 60 min exhibited delayed gastric emptying and increased plasma corticosterone levels. Gastric motility was decreased in mice exposed to restraint stress in both fasting and postprandial states. Restraint stress did not cause any change in plasma acylated ghrelin levels, but it significantly increased the plasma des-acyl ghrelin levels. Administration of acylated ghrelin or rikkunshito improved the restraint stress-induced delayed gastric emptying and decreased antral motility. Ameliorating effects of rikkunshito on stress-induced gastric dysfunction were abolished by simultaneous administration of a ghrelin receptor antagonist. CONCLUSIONS & INFERENCES Plasma acylated/des-acyl ghrelin imbalance was observed in acute restraint stress. Supplementation of exogenous acylated ghrelin or enhancement of endogenous ghrelin signaling may be useful in the treatment of decreased gastric function caused by stress.
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Affiliation(s)
- M Nahata
- Tsumura Research Laboratories, Tsumura & Co.Ibaraki, Japan
| | - Y Saegusa
- Tsumura Research Laboratories, Tsumura & Co.Ibaraki, Japan
| | - C Sadakane
- Tsumura Research Laboratories, Tsumura & Co.Ibaraki, Japan
| | - C Yamada
- Tsumura Research Laboratories, Tsumura & Co.Ibaraki, Japan
| | - K Nakagawa
- Pathophysiology and Therapeutics, Faculty of Pharmaceutical Sciences, Hokkaido UniversitySapporo, Hokkaido, Japan
| | - N Okubo
- Pathophysiology and Therapeutics, Faculty of Pharmaceutical Sciences, Hokkaido UniversitySapporo, Hokkaido, Japan
| | - S Ohnishi
- Department of Gastroenterology and Hepatology, Hokkaido University Graduate School of MedicineSapporo, Hokkaido, Japan
| | - T Hattori
- Tsumura Research Laboratories, Tsumura & Co.Ibaraki, Japan
| | - N Sakamoto
- Department of Gastroenterology and Hepatology, Hokkaido University Graduate School of MedicineSapporo, Hokkaido, Japan
| | - H Takeda
- Pathophysiology and Therapeutics, Faculty of Pharmaceutical Sciences, Hokkaido UniversitySapporo, Hokkaido, Japan,Department of Gastroenterology and Hepatology, Hokkaido University Graduate School of MedicineSapporo, Hokkaido, Japan,Address for Correspondence Hiroshi Takeda, Pathophysiology and Therapeutics, Faculty of Pharmaceutical Sciences, Hokkaido University, N12W6, Kita-ku, Sapporo, Hokkaido 060-0812, Japan., Tel: +81-11-706-3746; fax: +81-11-706-4978; e-mail:
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Fukami A, Saitoh I, Inada E, Oku T, Iwase Y, Takemoto Y, Yamada C, Iwasaki T, Hasegawa H, Kubota N, Murakami T, Harada K, Megumi N, Sachiko K, Noriko I, Haruaki H, Youichi Y. A Reproducibility Method to Test Lip-Closing Strength in Preschool Children. Cranio 2014; 28:232-7. [DOI: 10.1179/crn.2010.032] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Sabashi K, Saitoh I, Hayasaki H, Iwase Y, Kondo S, Inada E, Takemoto Y, Yamada C, Yamasaki Y. A Cross-Sectional Study of Developing Resting Masseter Activity in Different Angle Classifications in Adolescence. Cranio 2014; 27:39-45. [DOI: 10.1179/crn.2009.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Nakagawa Y, Nishikimi T, Kuwahara K, Yasuno S, Kinoshita H, Kuwabara Y, Yamada C, Nakao K, Ueshima K, Nakao K. Effect of hemodyalysis on precursor proBNP and glycosylated NT-proBNP in end-stage renal disease patients. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p5072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Okuno E, Aikawa T, Miyagawa K, Yamada C, Kimata M, Amano K, Okura M, Kogo M. PP090. Oral Oncol 2013. [DOI: 10.1016/j.oraloncology.2013.03.333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Iwase Y, Saitoh I, Okamoto A, Nakakura-Ohshima K, Inada E, Yamada C, Takemoto Y, Yamasaki Y, Hayasaki H. Do occlusal contact areas of maximum closing position during gum chewing and intercuspal position coincide? Arch Oral Biol 2012; 56:1616-23. [PMID: 21855855 DOI: 10.1016/j.archoralbio.2011.07.004] [Citation(s) in RCA: 6] [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: 01/26/2011] [Revised: 07/01/2011] [Accepted: 07/11/2011] [Indexed: 11/24/2022]
Abstract
OBJECTIVE Occlusal contact area (OCA) is most important during the occlusal phase when food particles are being pulverized. OCA is most easily measured statically at the maximum intercuspal position (ICP). However, the assumption of coincidence between dynamic maximum closing position (MCP) and statically determined ICP has not been previously tested. The purpose of this study is to introduce a method of quantifying OCA of all teeth during dynamic mastication to determine whether the OCA at the dynamic MCP during chewing is similar to the statically determined maximum possible OCA. DESIGN Thirteen healthy females participated in this study. Morphologic tooth shape data were measured from dental models using an automatic 3D digitizer. Mandibular movement during gum chewing was recorded using an optoelectronic analysis system with 6 degrees of freedom, and ten cycles were selected for analysis. The dynamic OCA was estimated with a measurement system combining 3D tracking of mandibular movements with 3D digitization of tooth shape. RESULTS The estimated mean 3D difference between the incisor position at ICP and MCP was 0.129 mm. At the dynamic MCP, the maximum OCA was 98.5% (68.42 mm(2)) of the maximum possible contact area in the static ICP (69.46 mm(2)). Both between-subject and within-subject variation were least at the dynamic MCP. CONCLUSION The maximum OCA during chewing is nearly identical to statically determined maximum possible OCA.
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Affiliation(s)
- Yoko Iwase
- Department of Dental Anesthesia, Anesthesia and Critical Care Center, Kagoshima University Medical and Dental Hospital, Japan
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Yamada C, Feitosa WB, Simões R, Nicacio AC, Mendes CM, Assumpção MEOA, Visintin JA. Vitrification with Glutamine Improves Maturation Rate of Vitrified / Warmed Immature Bovine Oocytes. Reprod Domest Anim 2011; 46:173-6. [DOI: 10.1111/j.1439-0531.2009.01554.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Takemoto Y, Saitoh I, Iwasaki T, Inada E, Yamada C, Iwase Y, Shinkai M, Kanomi R, Hayasaki H, Yamasaki Y. Pharyngeal airway in children with prognathism and normal occlusion. Angle Orthod 2011; 81:75-80. [DOI: 10.2319/013010-65.1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Yamada C, Fujiwara H, Ogawa N, Funai Y, Shibata H, Watanabe H, Kaneko M, Takeshita A. [Analyses of 6 misidentifications in blood sampling in our hospital]. Rinsho Byori 2011; 59:42-45. [PMID: 21404579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The initial step of blood transfusion therapy is blood type grouping. ABO-mismatch blood transfusion results in serious adverse effects. 6 incidents in the process of blood type identification, which were caused by misidentification in blood sampling, have experienced in our hospital since October, 2006 to September 2009. We retrospectively examined these incidents, and discussed the reasons and countermeasures. All of 6 incidents were caused by busy residents or nurses during busy hours such as early in the morning or in the emergency. To prevent these incidents, staffs of transfusion unit announced what we have to take care in sampling blood and tied alert tags to sampling tubes. Moreover, we have recently introduced crosschecking computer systems between patients and sampling tubes. We should make continuous efforts to establish safer blood transfusion systems.
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Affiliation(s)
- Chiaki Yamada
- Transfusion and Cell Therapy, Hamamatsu University School of Medicine, Hamamatsu 431-3192, Japan.
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Yamamoto K, Noguchi J, Yamada C, Watabe AM, Kato F. Distinct target cell-dependent forms of short-term plasticity of the central visceral afferent synapses of the rat. BMC Neurosci 2010; 11:134. [PMID: 20961403 PMCID: PMC2978217 DOI: 10.1186/1471-2202-11-134] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [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: 05/31/2010] [Accepted: 10/20/2010] [Indexed: 11/25/2022] Open
Abstract
Background The visceral afferents from various cervico-abdominal sensory receptors project to the dorsal vagal complex (DVC), which is composed of the nucleus of the solitary tract (NTS), the area postrema and the dorsal motor nucleus of the vagus nerve (DMX), via the vagus and glossopharyngeal nerves and then the solitary tract (TS) in the brainstem. While the excitatory transmission at the TS-NTS synapses shows strong frequency-dependent suppression in response to repeated stimulation of the afferents, the frequency dependence and short-term plasticity at the TS-DMX synapses, which also transmit monosynaptic information from the visceral afferents to the DVC neurons, remain largely unknown. Results Recording of the EPSCs activated by paired or repeated TS stimulation in the brainstem slices of rats revealed that, unlike NTS neurons whose paired-pulse ratio (PPR) is consistently below 0.6, the distribution of the PPR of DMX neurons shows bimodal peaks that are composed of type I (PPR, 0.6-1.5; 53% of 120 neurons recorded) and type II (PPR, < 0.6; 47%) neurons. Some of the type I DMX neurons showed paired-pulse potentiation. The distinction of these two types depended on the presynaptic release probability and the projection target of the postsynaptic cells; the distinction was not dependent on the location or soma size of the cell, intensity or site of the stimulation, the latency, standard deviation of latency or the quantal size. Repeated stimulation at 20 Hz resulted in gradual and potent decreases in EPSC amplitude in the NTS and type II DMX neurons, whereas type I DMX neurons displayed only slight decreases, which indicates that the DMX neurons of this type could be continuously activated by repeated firing of primary afferent fibers at a high (~10 Hz) frequency. Conclusions These two general types of short-term plasticity might contribute to the differential activation of distinct vago-vagal reflex circuits, depending on the firing frequency and type of visceral afferents.
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Affiliation(s)
- Kiyofumi Yamamoto
- Laboratory of Neurophysiology, Department of Neuroscience, Jikei University School of Medicine, Minato-ku, Tokyo 105-8461, Japan
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Suzuki H, Yamada C, Kijima K, Ishihara S, Wada K, Fukuyama K, Kumagai H. Enhancement of glutaryl-7-aminocephalosporanic acid acylase activity of γ-glutamyltranspeptidase of Bacillus subtilis. Biotechnol J 2010; 5:829-37. [DOI: 10.1002/biot.201000015] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Sayed ASAFE, Fujimoto S, Yamada C, Suzuki H. Enzymatic synthesis of γ-glutamylglutamine, a stable glutamine analogue, by γ-glutamyltranspeptidase from Escherichia coli K-12. Biotechnol Lett 2010; 32:1877-81. [DOI: 10.1007/s10529-010-0364-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2010] [Accepted: 07/21/2010] [Indexed: 10/19/2022]
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Shinozaki K, Yamada C, Takahata N, Sugiura M. Molecular cloning and sequence analysis of the cyanobacterial gene for the large subunit of ribulose-1,5-bisphosphate carboxylase/oxygenase. Proc Natl Acad Sci U S A 2010; 80:4050-4. [PMID: 16593333 PMCID: PMC394198 DOI: 10.1073/pnas.80.13.4050] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Ribulose-1,5-bisphosphate carboxylase/oxygenase consists of large subunits (LS) and small subunits. In plants, the LS is encoded in chloroplast DNA and the small subunit, in nuclear DNA. In cyanobacteria, both subunits are thought to be encoded in chromosomal DNA because of prokaryotes. The gene for the LS of ribulose-1,5-bisphosphate carboxylase/oxygenase from a cyanobacterium, Anacystis nidulans 6301, has been cloned in pBR322 and subjected to sequence analysis. The coding region contains 1,416 base pairs (472 codons). The deduced amino acid sequence of A. nidulans LS protein shows 80% homology with sequences of maize, spinach, and tobacco LS proteins; the nucleotide sequence of A. nidulans LS gene shows 70% homology with sequences of the plant genes. Between A. nidulans LS and the plant LS proteins there is exact sequence homology around the lysine residue to which the activator CO(2) binds and around the two lysine residues to which ribulose 1,5-bisphosphate binds. The amino acid sequence where the LS binds to the small subunit is also highly conserved. From comparison of the LS proteins of A. nidulans and the three plants, the rate of amino acid substitution is estimated to be 0.25-0.5 x 10(-9) per year per site, which is far below the median value of various types of proteins (1.2 x 10(-9) for hemoglobin alpha). The LS protein is thus a conserved protein.
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Affiliation(s)
- K Shinozaki
- Department of Biology, Nagoya University, Chikusa, Nagoya 464, Japan
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Kawasaki Y, Harashima S, Sasaki M, Mukai E, Nakamura Y, Harada N, Toyoda K, Hamasaki A, Yamane S, Yamada C, Yamada Y, Seino Y, Inagaki N. Exendin-4 protects pancreatic beta cells from the cytotoxic effect of rapamycin by inhibiting JNK and p38 phosphorylation. Horm Metab Res 2010; 42:311-7. [PMID: 20213584 DOI: 10.1055/s-0030-1249035] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
It has been reported that the immunosuppressant rapamycin decreases the viability of pancreatic beta cells. In contrast, exendin-4, an analogue of glucagon-like peptide-1, has been found to inhibit beta cell death and to increase beta cell mass. We investigated the effects of exendin-4 on the cytotoxic effect of rapamycin in beta cells. Incubation with 10 nM rapamycin induced cell death in 12 h in murine beta cell line MIN6 cells and Wistar rat islets, but not when coincubated with 10 nM exendin-4. Rapamycin was found to increase phosphorylation of c-Jun amino-terminal kinase (JNK) and p38 in 30 minutes in MIN6 cells and Wistar rat islets while exendin-4 decreased their phosphorylation. Akt and extracellular signal-regulated kinase (ERK) were not involved in the cytoprotective effect of exendin-4. These results indicate that exendin-4 may exert its protective effect against rapamycin-induced cell death in pancreatic beta cells by inhibiting JNK and p38 signaling.
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Affiliation(s)
- Y Kawasaki
- Department of Diabetes and Clinical Nutrition, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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Kubota N, Hayasaki H, Saitoh I, Iwase Y, Maruyama T, Inada E, Hasegawa H, Yamada C, Takemoto Y, Matsumoto Y, Yamasaki Y. Jaw motion during gum-chewing in children with primary dentition. Cranio 2010; 28:19-29. [PMID: 20158006 DOI: 10.1179/crn.2010.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
This study was undertaken to characterize jaw motion during mastication in children with primary dentition and to compare jaw motion with that in adults. The means and the variances of the traditional parameters for the chewing cycle, i.e., duration, excursive ranges and 3-D distances of travel at the lower incisor, molars and condyles were analyzed and compared in 23 children and 25 female adults. The duration of opening in children was significantly shorter than that of adults. Significant differences between children and adults were observed in lateral and vertical excursion of the incisor, lateral excursion at the molars, and vertical excursion at the condyles. Many of these measurements had larger between-subject and between-cycle variances in children than adults, suggesting that chewing motion in children has not yet matured. The results of this study indicate that chewing motion in children is different from that of adults.
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Affiliation(s)
- Naoko Kubota
- Section of Pediatric Dentistry, Division of Oral Health, Growth, and Development, Kagoshima University Graduate School of Dental Science, Japan
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Shinogami M, Iwamura H, Nakanishi W, Yamada C. The relation of the contraction period and the bacteria of the otorrhea of chronic otitis media. Int J Infect Dis 2010. [DOI: 10.1016/j.ijid.2010.02.1609] [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: 11/30/2022] Open
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