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Bahrami A, Khorasanchi Z, Sadeghnia HR, Tayefi M, Avan A, Ferns GA, Bahrami-Taghanaki H, Ghayour-Mobarhan M. Depression in adolescent girls: Relationship to serum vitamins a and E, immune response to heat shock protein 27 and systemic inflammation. J Affect Disord 2019; 252:68-73. [PMID: 30981058 DOI: 10.1016/j.jad.2019.04.048] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 01/09/2019] [Accepted: 04/08/2019] [Indexed: 11/16/2022]
Abstract
BACKGROUND The inflammation and oxidative stress are thought to play an important role in the etiopathogenesis of some psychological disorders. We aimed to assess the potential relationships between serum fat soluble vitamins (Vitamins A and E), antibody titers to Hsp27 (anti-Hsp27) and hematological markers of inflammation, with mood disorders in a population of adolescent girls. METHODS A total of 563 adolescent girls (Age 12-18 years) were included in the study. The presence and severity of depression, insomnia and sleepiness were assessed using validated questionnaires. Serum vitamins A and E, anti-Hsp27 antibody titers, white blood cell, lymphocyte, neutrophil, platelet counts, and red blood cell distribution width (RDW), were also measured. Neutrophil to lymphocyte ratio (NLR), platelet to lymphocyte ratio (PLR), and RDW to platelet ratio (RPR) were calculated. RESULTS Serum anti-HSP27 antibody titers, PLR, and RPR values was significantly higher in subjects with a high depression score compared to normal individuals (p < 0.05). However, there was no association between serum inflammatory markers concentrations and sleep disorders; although individuals with insomnia had a lower vitamin E/HDL ratio compared to healthy adolescents. In multivariate logistic regression analyses adjusted for potential confounders, anti-HSP was an independent predictor of severe depression (OR = 5.0, 95% CI: 1.6-15.7, p < 0.05). LIMITATION The cross-sectional design of study and the inclusion of only female adolescents participants are limitations. CONCLUSION Our findings suggest that serum anti-HSP27 antibody titers may be useful biological marker in depressive patients. This finding may support a role of oxidative stress in the etiology of depression, and targeting this pathway may be of value in the treatment of depression.
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Affiliation(s)
- Afsane Bahrami
- Cellular and Molecular Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - Zahra Khorasanchi
- Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamid Reza Sadeghnia
- Pharmacological Research Center of Medicinal Plants, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maryam Tayefi
- Clinical Research Unit, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amir Avan
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Gordon A Ferns
- Brighton & Sussex Medical School, Division of Medical Education, Falmer, Brighton, Sussex BN1 9PH, UK
| | - Hamidreza Bahrami-Taghanaki
- Complementary and Chinese Medicine, Persian and Complementary Medicine Faculty, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Majid Ghayour-Mobarhan
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
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Uno H, Tanaka-Takada N, Hattori M, Fukuda M, Maeshima M. A cell-wall protein SRPP provides physiological integrity to the Arabidopsis seed. JOURNAL OF PLANT RESEARCH 2019; 132:145-154. [PMID: 30673938 DOI: 10.1007/s10265-018-01083-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Accepted: 12/04/2018] [Indexed: 06/09/2023]
Abstract
Seed and root hair protective protein (SRPP) is expressed in seeds and root hairs, localized in the cell wall, and involved in cell wall integrity. We analyzed a loss-of-function mutant of SRPP, focusing on siliques and seeds. The srpp-1 plants generated dark brown shrunken seeds at a high rate. The germination rate of these defect seeds of srpp-1 was less than 6%, although apparently normal srpp-1 seeds germinated at a rate of 83%. The production ratio of severe phenotypic seeds was dependent on the growth conditions. When the srpp-1 plants were cultivated at low humidity, the defect ratio was 73%, which was significantly higher than that at normal humidity. Defects of the silique and seeds could be detected on day 7 after pollination and the apical region of the siliques displayed a severe phenotype at a high frequency. Complementation with an SRPP gene under the control of promoters specific to the embryo, seed coat, or valve (carpel) partially rescued the phenotype, and complementation using the SRPP promoter fully rescued the phenotype. Furthermore, overexpression of SRPP enhanced the thermotolerance. After the treatment of seeds at 50 °C for 2 h, the germination rate of the seeds from overexpression with the 35S promoter increased to levels twice that of the wild-type seeds. Under the same conditions, no srpp-1 seeds germinated. These results indicate that SRPP is essential for the production of normal viable seeds in siliques under stress conditions. It is possible that modification of the SRPP gene improves seed integrity.
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Affiliation(s)
- Hiroshi Uno
- Laboratory of Cell Dynamics, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, 464-8601, Japan
| | - Natsuki Tanaka-Takada
- Laboratory of Cell Dynamics, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, 464-8601, Japan
- Department of Plant Sciences, University of Oxford, South Parks Road, OX1 3RB, Oxford, UK
| | - Momoko Hattori
- Laboratory of Cell Dynamics, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, 464-8601, Japan
| | - Mayu Fukuda
- Laboratory of Cell Dynamics, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, 464-8601, Japan
| | - Masayoshi Maeshima
- Laboratory of Cell Dynamics, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, 464-8601, Japan.
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Chauhan A. Interplay of vitamin D with T regulatory cells (FOXP3+Treg) and thymic stromal lymphopoietin (TSLP) in children with atopic diseases. ACTA ACUST UNITED AC 2018. [DOI: 10.15406/moji.2018.06.00201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Kargari M, Tavassoli S, Avan A, Ebrahimi M, Azarpazhooh MR, Asoodeh R, Nematy M, Hassanian SM, Rahmani F, Mohammadzade E, Esmaeili H, Moohebati M, Ferns GA, Ghayour-Mobarhan M, Parizadeh SMR. Relationship between serum anti-heat shock protein 27 antibody levels and obesity. Clin Biochem 2017; 50:690-695. [PMID: 28237841 DOI: 10.1016/j.clinbiochem.2017.02.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 02/14/2017] [Accepted: 02/14/2017] [Indexed: 11/28/2022]
Abstract
BACKGROUND Heat shock protein 27 (HSP27) is an intracellular molecular chaperone that is expressed at high levels following the exposure of cells to environmental stressors such as heat, toxins, and free radicals. High levels of HSP antigens and antibody titers have been reported in several conditions including cardiovascular disease and cancers. We measured serum anti-HSP27 antibody levels in 993 subjects and assessed the associations between serum anti-HSP27 antibody levels and demographic characteristics including coronary risk factors. METHODS A total of 993 subjects were recruited as part of the Mashhad Stroke and Heart Atherosclerotic Disorders (MASHAD) cohort study. Demographic, clinical, and biochemical parameters and serum anti-HSP27 antibody titers were determined in all the subjects. RESULTS Serum anti-HSP27 antibody levels increased with increasing age in men. No significant differences in levels were detected between men and women. Serum anti-HSP27 antibody levels were significantly higher in obese subjects than in nonobese subjects (P=0.046); however, no significant influence of smoking status was observed. Moreover, serum anti-HSP27 antibody titers were positively associated with age, body mass index, waist/hip ratio, the presence of diabetes mellitus, nonsmoking habit, serum triglycerides, cholesterol, and high-sensitivity c-reactive protein. CONCLUSION We have found that serum anti-HSP27 antibody titers are related to several cardiovascular risk factors, necessitating further studies on the value of this emerging marker for risk stratification.
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Affiliation(s)
- Mehrdad Kargari
- Department of Clinical Biochemistry, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Basic Medical Sciences, Neyshabur University of Medical Sciences, Neyshabur, Iran; Metabolic syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Samira Tavassoli
- Department of Biochemistry, Payam Noor University of Mashhad, Mashhad, Iran
| | - Amir Avan
- Metabolic syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Modern Sciences and Technologies, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahmoud Ebrahimi
- Cardiovascular Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahmoud Reza Azarpazhooh
- Cardiovascular Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Rasool Asoodeh
- Department of biostatistics and Epidemiology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohsen Nematy
- Metabolic syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Mahdi Hassanian
- Department of Clinical Biochemistry, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Metabolic syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Farzad Rahmani
- Department of Clinical Biochemistry, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Metabolic syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Elham Mohammadzade
- Metabolic syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Habibollah Esmaeili
- Metabolic syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Biochemistry, Payam Noor University of Mashhad, Mashhad, Iran
| | - Mohsen Moohebati
- Cardiovascular Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Gordon A Ferns
- Brighton & Sussex Medical School, Division of Medical Education, Falmer, Brighton, Sussex BN1 9PH, UK
| | - Majid Ghayour-Mobarhan
- Metabolic syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Modern Sciences and Technologies, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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Wu HC, Hsu SF, Luo DL, Chen SJ, Huang WD, Lur HS, Jinn TL. Recovery of heat shock-triggered released apoplastic Ca2+ accompanied by pectin methylesterase activity is required for thermotolerance in soybean seedlings. JOURNAL OF EXPERIMENTAL BOTANY 2010; 61:2843-52. [PMID: 20444907 PMCID: PMC2882276 DOI: 10.1093/jxb/erq121] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2010] [Revised: 04/09/2010] [Accepted: 04/12/2010] [Indexed: 05/22/2023]
Abstract
Synthesis of heat shock proteins (HSPs) in response to heat shock (HS) is essential for thermotolerance. The effect of a Ca(2+) chelator, EGTA, was investigated before a lethal HS treatment in soybean (Glycine max) seedlings with acquired thermotolerance induced by preheating. Such seedlings became non-thermotolerant with EGTA treatment. The addition of Ca(2+), Sr(2+) or Ba(2+) to the EGTA-treated samples rescued the seedlings from death by preventing the increased cellular leakage of electrolytes, amino acids, and sugars caused by EGTA. It was confirmed that EGTA did not affect HSP accumulation and physiological functions but interfered with the recovery of HS-released Ca(2+) concentration which was required for thermotolerance. Pectin methylesterase (PME, EC 3.1.1.11), a cell wall remodelling enzyme, was activated in response to HS, and its elevated activity caused an increased level of demethylesterified pectin which was related to the recovery of the HS-released Ca(2+) concentration. Thus, the recovery of HS-released Ca(2+) in Ca(2+)-pectate reconstitution through PME activity is required for cell wall remodelling during HS in soybean which, in turn, retains plasma membrane integrity and co-ordinates with HSPs to confer thermotolerance.
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Affiliation(s)
- Hui-Chen Wu
- Institute of Plant Biology and Department of Life Science, National Taiwan University, Taipei 10617, Taiwan
| | - Shih-Feng Hsu
- Institute of Plant Biology and Department of Life Science, National Taiwan University, Taipei 10617, Taiwan
| | - Dan-Li Luo
- Institute of Plant Biology and Department of Life Science, National Taiwan University, Taipei 10617, Taiwan
| | - Shiang-Jiuun Chen
- Institute of Plant Biology and Department of Life Science, National Taiwan University, Taipei 10617, Taiwan
| | - Wen-Dar Huang
- Department of Agronomy, National Taiwan University, Taipei 10617, Taiwan
| | - Huu-Sheng Lur
- Department of Agronomy, National Taiwan University, Taipei 10617, Taiwan
| | - Tsung-Luo Jinn
- Institute of Plant Biology and Department of Life Science, National Taiwan University, Taipei 10617, Taiwan
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Gashegu J, Ladha R, Vanmuylder N, Philippson C, Bremer F, Rooze M, Louryan S. HSP110, caspase-3 and -9 expression in physiological apoptosis and apoptosis induced by in vivo embryonic exposition to all-trans retinoic acid or irradiation during early mouse eye development. J Anat 2007; 210:532-41. [PMID: 17451530 PMCID: PMC2375737 DOI: 10.1111/j.1469-7580.2007.00719.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Apoptosis is an essential physiological process in embryonic development. In the developing eye of vertebrates, three periods of developmental apoptosis can be distinguished: early, intermediate and later. Within the apoptosis pathway, caspases play a crucial role. It has also been shown that HSP110 may have a potential role in apoptosis. The aim of this research was to study the expression of HSP110, caspase-3 and -9 in physiological, retinoic- or irradiation-induced apoptosis during early eye development. Seven pregnant C57Bl/6J mice received 80 mg kg(-1) of all-trans retinoic acid mixed with sesame oil. Seven pregnant NMRI mice received 2 Gy irradiation at the same gestational day. Control mice of both strains (seven mice of each) were not submitted to any treatment. Embryos were harvested at 3, 6, 12 and 24 h after exposition, fixed, dehydrated and embedded. Coronal sections (5 microm) were made. Slide staining occurred alternatively using anti-caspase-3, anti-caspase-9 and anti-HSP110 immunohistochemistry. HSP110 and caspase-3 expression presented similar topographic and chronological patterns, whereas expression of HSP110 was more precocious in retinoic acid-treated embryos. After retinoic exposure, caspase-3- and HSP110-positive cells were increased in the region of the optic vesicle. By contrast, after irradiation, caspase-3- and HSP110-positive cells were noticeably increased in the optic vesicle, peri-optical mesoderm but less in lens placode. HSP110 was expressed before caspase-3. By contrast, caspase-9 was expressed by a very small number of cells in the optic vesicle either under physiological or under teratogenic conditions. Thus, it seems that activation of caspase-9 is dispensable in early eye developmental apoptosis.
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Affiliation(s)
- Julien Gashegu
- Department of Anatomy and Embryology, Université Libre de Bruxelles, Faculty of Medicine, Brussels, Belgium
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Gashegu J, Vanmuylder N, Philippson C, Choa-Duterre M, Rooze M, Louryan S. Correlation of Hsp110 expression with caspase-3 and -9 during apoptosis induced by in vivo embryonic exposition to retinoic acid or irradiation in early mouse craniofacial development. Orthod Craniofac Res 2006; 9:84-92. [PMID: 16764683 DOI: 10.1111/j.1601-6343.2006.00361.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To analyze the expression and role of three proteins (HSP110, caspase-3 and caspase-9) during craniofacial development. DESIGN Seven pregnant C57Bl/6J mice received, by force-feeding at gestation day 9 (E9), 80 mg/kg of all-trans retinoic acid mixed to sesame oil. Seven pregnant NMRI mice received two grays irradiation at the same gestation day. Control mice of both strains (seven mice for each strain) were not submitted to any treatment. Embryos were obtained at various stages after exposition (3, 6, 12 and 24 h), fixed, dehydrated and embedded. Coronal sections (5 microm) were made. Slide staining occurred alternatively using anti-Hsp110, anti-caspase-3 and anti-caspase-9 immunohistochemistry. RESULTS Expression of HSP110, caspase-3 and caspase-9 was found in cells of well-known locations of programmed cell death. After retinoic acid exposure, expressions were increased especially in neural crest cells of mandibular and hyoid arches. Quantification of positive cells shows that caspase-9 and Hsp110 were expressed before caspase-3. After irradiation, the expression of the three proteins quickly increased with a maximum 3 h after irradiation. For all three models of apoptosis (physiological, retinoic-induced and irradiation-induced) HSP110 positive cells were more numerous than caspase-3 positive cells. Caspase-3 positive cells were more numerous than caspase-9 positive cells especially in mesectodermal irradiation-induced apoptotic cells. CONCLUSION The findings show a potential function of HSP110 in apoptosis during embryo development. Caspase-3-expressing cells are more numerous than cells expressing caspase-9, especially irradiation-induced apoptotic neural crest cells. This suggests that other caspases, still to be identified, may activate caspase-3 in this model.
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Affiliation(s)
- J Gashegu
- Laboratory of Human Anatomy and Embryology, Université Libre de Bruxelles, Faculté de Médecine, Brussels, Belgium
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Nakamura K, Zhang X, Kuramitsu Y, Fujimoto M, Yuan X, Akada J, Aoshima-Okuda M, Mitani N, Itoh Y, Katoh T, Morita Y, Nagasaka Y, Yamazaki Y, Kuriki T, Sobel A. Analysis on heat stress-induced hyperphosphorylation of stathmin at serine 37 in Jurkat cells by means of two-dimensional gel electrophoresis and tandem mass spectrometry. J Chromatogr A 2006; 1106:181-9. [PMID: 16427064 DOI: 10.1016/j.chroma.2005.12.068] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2005] [Revised: 12/13/2005] [Accepted: 12/19/2005] [Indexed: 11/17/2022]
Abstract
Two-dimensional gel electrophoresis (2-DE) and tandem mass spectrometry were successfully used for determination of a phosphorylation site of stathmin induced by heat stress to Jurkat cells of a human T lymphoblastic cell line. The cells were incubated for 30 min at 41 degrees C up to 45 degrees C in a serum free 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid (HEPES) buffered culture medium. The intracellular soluble proteins were separated by 2-DE, and some of the proteins increased their abundance by heat stress. Those proteins were identified to be calmodulin, protein kinase C substrate, thymosin beta-4 and F-actin capping protein beta-subunit by peptide mass fingerprinting (PMF) with matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS). On the contrary, protein phosphatase 2C gamma-isoform, nucleophosmin, translationally controlled tumor protein, Rho GDP-dissociation inhibitor-1, eukaryotic translation initiation factors 5A and 3A subunit 2, ubiquitin-like protein SMT 3B and chloride intracellular channel protein-1 were decreased their abundance. A protein spot of M(r) 18,000 and pI 5.9 was markedly increased at temperatures higher than 43 degrees C at which the cells were led to apoptosis. The spot was identified to be stathmin of a signal relay protein which has a function of sequestering microtubule. MALDI-quadrupole ion trap (QIT)-TOF-MS/MS and immunoblotting with a monoclonal antibody specific for a phosphorylation site of stathmin showed that the spot was a phosphorylated stathmin at serine 37 (Ser 37). The phosphorylation was suppressed by treatment of cells with olomoucine of an inhibitor specific for cyclin dependent kinase (Cdk-1). These results strongly suggest that heat stress activates Cdk-1 which phosphorylates Ser 37 on the stathmin molecule. The phosphorylation may cause the functional loss of stathmin for dynamic microtubule assembly and leads Jurkat cells to cell cycle arrest and apoptosis.
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Affiliation(s)
- Kazuyuki Nakamura
- Department of Biochemistry and Biomolecular Recognition, Yamaguchi University School of Medicine, Minami-kogushi 1-1-1, Ube, Yamaguchi 755-8505, Japan.
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Hong SW, Lee U, Vierling E. Arabidopsis hot mutants define multiple functions required for acclimation to high temperatures. PLANT PHYSIOLOGY 2003; 132:757-67. [PMID: 12805605 PMCID: PMC167015 DOI: 10.1104/pp.102.017145] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2002] [Revised: 12/10/2002] [Accepted: 12/10/2002] [Indexed: 05/17/2023]
Abstract
Plants acquire thermotolerance to lethal high temperatures if first exposed to moderately high temperature or if temperature is increased gradually to an otherwise lethal temperature. We have taken a genetic approach to dissecting acquired thermotolerance by characterizing loss-of-function thermotolerance mutants in Arabidopsis. In previous work, we identified single recessive alleles of four loci required for thermotolerance of hypocotyl elongation, hot1-1, hot2-1, hot3-1, and hot4-1. Completed screening of M2 progeny from approximately 2500 M1 plants has now identified new alleles of three of these original loci, along with three new loci. The low mutant frequency suggests that a relatively small number of genes make a major contribution to this phenotype or that other thermotolerance genes encode essential or redundant functions. Further analysis of the original four loci was performed to define the nature of their thermotolerance defects. Although the HOT1 locus was shown previously to encode a major heat shock protein (Hsp), Hsp101, chromosomal map positions indicate that HOT2, 3, and 4 do not correspond to major Hsp or heat shock transcription factor genes. Measurement of thermotolerance at different growth stages reveals that the mutants have growth stage-specific heat sensitivity. Analysis of Hsp accumulation shows that hot2 and hot4 produce normal levels of Hsps, whereas hot3 shows reduced accumulation. Thermotolerance of luciferase activity and of ion leakage also varies in the mutants. These data provide the first direct genetic evidence, to our knowledge, that distinct functions, independent of Hsp synthesis, are required for thermotolerance, including protection of membrane integrity and recovery of protein activity/synthesis.
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Affiliation(s)
- Suk-Whan Hong
- Department of Biochemistry and Molecular Biophysics, University of Arizona, Tucson 85721, USA
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Current information regarding the biochemical and genetic events that occur during disc degeneration. ACTA ACUST UNITED AC 2003. [DOI: 10.1097/00001433-200306000-00005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Takao T, Iwaki T. A comparative study of localization of heat shock protein 27 and heat shock protein 72 in the developmental and degenerative intervertebral discs. Spine (Phila Pa 1976) 2002; 27:361-8. [PMID: 11840100 DOI: 10.1097/00007632-200202150-00007] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN The lumbar intervertebral discs of 135 subjects after autopsy were immunostained with antihuman heat shock protein 27 (HSP27) monoclonal antibody and antihuman heat shock protein 72 (HSP72) polyclonal antibody. OBJECTIVES To present the data on metabolic changes that occurred in the chondrocytes of intervertebral discs during development and aging. SUMMARY OF BACKGROUND DATA Heat shock proteins have been implicated in the progressive degeneration of articular cartilage in joint disease, such as rheumatoid arthritis and osteoarthritis. However, the role and expression of heat shock proteins in human intervertebral discs have received little study. METHODS One hundred thirty-five specimens of human intervertebral discs were stained with hematoxylin and eosin, alcian blue, and Masson's trichrome and were immunostained with HSP27 and HSP72 by an indirect immunoperoxidase method. The relative amounts of HSP27 and HSP72 deposition were graded according to a semiquantitative scoring system. RESULTS Heat shock protein 72 accumulated in the cytoplasm of the chondrocytes of both endplate cartilage and nucleus pulposus during gestation and thereafter decreased with aging (age, </=60 years), and HSP72 immunoreactivity increased in the chondrocytes of degenerative discs. In addition, HSP72 was located in the nuclei of certain chondrocytes of the degenerated nucleus pulposus and anulus fibrosus, was highly expressed in the chondrocytes of endplate cartilage during gestation and childhood, and thereafter decreased with aging. Furthermore, with the progressive degeneration of the endplate cartilage, HSP27 immunoreactivity increased. The degree of HSP27 immunoreactivity did not change significantly according to age in either the nucleus pulposus or the anulus fibrosus. CONCLUSIONS Heat shock protein 27 and HSP72 are thus considered to be useful molecular indicators for degenerative change in intervertebral discs. Both HSP27 and HSP72 are presumed to play a role in cell protection from stress that is induced by mechanical and biologic factors causing intervertebral disc degeneration.
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Affiliation(s)
- Tsuneaki Takao
- Department of Neuropathology, Neurological Institute, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
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Vanmuylder N, Dourov N. Immunocytochemical investigations of heat shock proteins expression during thymic apoptosis induced by glucocorticoids. Pathol Res Pract 2000; 196:119-24. [PMID: 10707369 DOI: 10.1016/s0344-0338(00)80043-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The aim of our study was to investigate a possible expression of different HSPs in rat's thymuses after hydrocortisone administration. The thymuses of 41 young rats (25 to 45 days age old) were studied immunocytochemically: 12 rats were not injected, 8 received an injection of physiological serum, and 21 received HC (125 mg/kg). HSP27, 70 and 110 expression was investigated following the PAP method. HSPs27 were expressed neither in normal thymic lobules nor in the cortical thymic cells after HC injection. HSPs70 were objectivated only in 1 control animal, but were frankly expressed in cortical thymic cells 1 to 48 hours after HC injection and remained significantly expressed until the 7th day after HC injection. HSPs 110 were present in only 1 control animal and appeared to be distinctly expressed 48 hours after HC injection. HSPs 70 and 110 were never expressed in the regenerated thymuses 14 and 21 days after HC injection. This report objectivates for the first time 70 and 110 kDa "stress proteins" expression during the thymic apoptosis induced by glucocorticoids.
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Affiliation(s)
- N Vanmuylder
- Department of Pathology and Electron Microscopy, School of Medicine, Université Libre de Bruxelles, Belgium
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Nagasaka Y, Nakamura K. Modulation of the heat-induced activation of mitogen-activated protein (MAP) kinase by quercetin. Biochem Pharmacol 1998; 56:1151-5. [PMID: 9802325 DOI: 10.1016/s0006-2952(98)00253-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Effects of quercetin, a bioflavonoid compound, on heat-induced activation of mitogen-activated protein (MAP) kinase in rat hepatoma (H4) cells were examined. Quercetin decreased cell viability and induced DNA fragmentation in heat-shocked H4 cells. MAP kinase in heat-shocked cells was activated and reached a peak at 1 hr after the heat shock, and then gradually decreased. Quercetin inhibited the heat-induced activation of MAP kinase observed at 1 hr after heat shock, but markedly stimulated MAP kinase activity at 4 hr after heat shock. Thus, quercetin modulated the heat-induced activation of MAP kinase in a biphasic manner. Present observations indicate that quercetin modulates protein phosphorylation, especially that controled by MAP kinase, in early events of heat shock response.
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Affiliation(s)
- Y Nagasaka
- Department of Nutrition, Yamaguchi Prefectural University, Japan.
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Harada T, Izaki S, Tsutsumi H, Kobayashi M, Kitamura K. Apoptosis of hair follicle cells in the second-degree burn wound unders hypernatremic conditions. Burns 1998; 24:464-9. [PMID: 9725689 DOI: 10.1016/s0305-4179(98)00034-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Progressive burn wound necrosis is an important factor as a cause of delayed healing during clinical therapy of burns. Among the causes of progressive necrosis have been attributed an insufficient blood supply or a dehydration at the zone of stasis just beneath the zone of coagulation. In a previous study evidence was presented that hypernatremia, an osmotic injury, may act to promote progressive tissue or cell death of the superficial dermal wound resulting from a heat injury. To test this hypothesis pathological features of cell death in the second-degree burn wound in the rat with hypernatremia were investigated and evidence for apoptosis in hair follicle cells was observed. Rats in the hypernatremic group were administered 10 ml of hypertonic sodium solution (850 meq 1(-1)) and the control rats were treated with 10 ml of hyponatremic solution (100 meq 1(-1)) to prevent hypernatremia. After 24 h postburn the average incidence of hair follicles (ratio to the normal skin) in the hypernatremic group was 30.1 +/-11.6 per cent and significantly lower when compared with the control group (87.6+/-6.0 per cent). The numbers of hair follicles were studied by haematoxylin and eosin stain, and the apoptotic process was investigated by an immunochemical assay and electron microscopy.
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Affiliation(s)
- T Harada
- Department of Emergency and Critical Care Medicine, Saitama Medical Centre, Saitama Medical School, Kawagoe, Japan
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Deák M, Dudits D. Involvement of Stress Related and Cell Cycle Genes in Transition from Somatic to Embryogenic Cells of Alfalfa. BIOTECHNOL BIOTEC EQ 1994. [DOI: 10.1080/13102818.1994.10818788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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