1
|
Tran NLH, Lam TQ, Duong PVQ, Doan LH, Vu MP, Nguyen KHP, Nguyen KT. Review on the Significant Interactions between Ultrafine Gas Bubbles and Biological Systems. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:984-996. [PMID: 38153335 DOI: 10.1021/acs.langmuir.3c03223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
Having sizes comparable with living cells and high abundance, ultrafine bubbles (UBs) are prone to inevitable interactions with different types of cells and facilitate alterations in physiological properties. The interactions of four typical cell types (e.g., bacterial, fungal, plant, and mammalian cells) with UBs have been studied over recent years. For bacterial cells, UBs have been utilized in creating the capillary force to tear down biofilms. The release of high amounts of heat, pressure, and free radicals during bubble rupture is also found to affect bacterial cell growth. Similarly, the bubble gas core identity plays an important role in the development of fungal cells. By the proposed mechanism of attachment of UBs on hydrophobin proteins in the fungal cell wall, oxygen and ozone gas-filled ultrafine bubbles can either promote or hinder the cell growth rate. On the other hand, reactive oxygen species (ROS) formation and mass transfer facilitation are two means of indirect interactions between UBs and plant cells. Likewise, the use of different gas cores in generating bubbles can produce different physical effects on these cells, for example, hydrogen gas for antioxidation against infections and oxygen for oxidation of toxic metal ions. For mammalian cells, the importance of investigating their interactions with UBs lies in the bubbles' action on cell viability as membrane poration for drug delivery can greatly affect cells' survival. UBs have been utilized and tested in forming the pores by different methods, ranging from bubble oscillation and microstream generation through acoustic cavitation to bubble implosion.
Collapse
Affiliation(s)
- Nguyen Le Hanh Tran
- School of Biotechnology, International University, Vietnam National University, Ho Chi Minh City 700000, Vietnam
| | - Thien Quang Lam
- School of Biotechnology, International University, Vietnam National University, Ho Chi Minh City 700000, Vietnam
| | - Phuong Vu Quynh Duong
- School of Biotechnology, International University, Vietnam National University, Ho Chi Minh City 700000, Vietnam
| | - Linh Hai Doan
- School of Biotechnology, International University, Vietnam National University, Ho Chi Minh City 700000, Vietnam
| | - Mai Phuong Vu
- School of Biotechnology, International University, Vietnam National University, Ho Chi Minh City 700000, Vietnam
| | - Khang Huy Phuc Nguyen
- School of Biotechnology, International University, Vietnam National University, Ho Chi Minh City 700000, Vietnam
| | - Khoi Tan Nguyen
- School of Biotechnology, International University, Vietnam National University, Ho Chi Minh City 700000, Vietnam
| |
Collapse
|
2
|
Gambhir P, Singh V, Raghuvanshi U, Parida AP, Pareek A, Roychowdhury A, Sopory SK, Kumar R, Sharma AK. A glutathione-independent DJ-1/PfpI domain-containing tomato glyoxalaseIII2, SlGLYIII2, confers enhanced tolerance under salt and osmotic stresses. PLANT, CELL & ENVIRONMENT 2023; 46:518-548. [PMID: 36377315 DOI: 10.1111/pce.14493] [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: 06/02/2022] [Revised: 10/07/2022] [Accepted: 10/27/2022] [Indexed: 06/16/2023]
Abstract
In plants, glyoxalase enzymes are activated under stress conditions to mitigate the toxic effects of hyperaccumulated methylglyoxal (MG), a highly reactive carbonyl compound. Until recently, a glutathione-dependent bi-enzymatic pathway involving glyoxalase I (GLYI) and glyoxalase II (GLYII) was considered the primary MG-detoxification system. Recently, a new glutathione-independent glyoxalase III (GLYIII) mediated direct route was also reported in plants. However, the physiological significance of this new pathway remains to be elucidated across plant species. This study identified the full complement of 22 glyoxalases in tomato. Based on their strong induction under multiple abiotic stresses, SlGLYI4, SlGLYII2 and SlGLYIII2 were selected candidates for further functional characterisation. Stress-inducible overexpression of both glutathione-dependent (SlGLYI4 + SlGLYII2) and independent (SlGLYIII2) pathways led to enhanced tolerance in both sets of transgenic plants under abiotic stresses. However, SlGLYIII2 overexpression (OE) plants outperformed the SlGLYI4 + SlGLYII2 OE counterparts for their stress tolerance under abiotic stresses. Further, knockdown of SlGLYIII2 resulted in plants with exacerbated stress responses than those silenced for both SlGLYI4 and SlGLYII2. The superior performance of SlGLYIII2 OE tomato plants for better growth and yield under salt and osmotic treatments could be attributed to better GSH/GSSG ratio, lower reactive oxygen species levels, and enhanced antioxidant potential, indicating a prominent role of GLYIII MG-detoxification pathway in abiotic stress mitigation in this species.
Collapse
Affiliation(s)
- Priya Gambhir
- Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, India
| | - Vijendra Singh
- Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, India
| | - Utkarsh Raghuvanshi
- Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, India
| | - Adwaita Prasad Parida
- Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, India
| | - Amit Pareek
- Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, India
| | | | - Sudhir K Sopory
- Department of Plant Molecular Biology, Plant Stress Biology Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| | - Rahul Kumar
- Department of Plant Sciences, University of Hyderabad, Hyderabad, Telangana, India
| | - Arun Kumar Sharma
- Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, India
| |
Collapse
|
3
|
Borysiuk K, Ostaszewska-Bugajska M, Kryzheuskaya K, Gardeström P, Szal B. Glyoxalase I activity affects Arabidopsis sensitivity to ammonium nutrition. PLANT CELL REPORTS 2022; 41:2393-2413. [PMID: 36242617 PMCID: PMC9700585 DOI: 10.1007/s00299-022-02931-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 09/26/2022] [Indexed: 06/16/2023]
Abstract
Elevated methylglyoxal levels contribute to ammonium-induced growth disorders in Arabidopsis thaliana. Methylglyoxal detoxification pathway limitation, mainly the glyoxalase I activity, leads to enhanced sensitivity of plants to ammonium nutrition. Ammonium applied to plants as the exclusive source of nitrogen often triggers multiple phenotypic effects, with severe growth inhibition being the most prominent symptom. Glycolytic flux increase, leading to overproduction of its toxic by-product methylglyoxal (MG), is one of the major metabolic consequences of long-term ammonium nutrition. This study aimed to evaluate the influence of MG metabolism on ammonium-dependent growth restriction in Arabidopsis thaliana plants. As the level of MG in plant cells is maintained by the glyoxalase (GLX) system, we analyzed MG-related metabolism in plants with a dysfunctional glyoxalase pathway. We report that MG detoxification, based on glutathione-dependent glyoxalases, is crucial for plants exposed to ammonium nutrition, and its essential role in ammonium sensitivity relays on glyoxalase I (GLXI) activity. Our results indicated that the accumulation of MG-derived advanced glycation end products significantly contributes to the incidence of ammonium toxicity symptoms. Using A. thaliana frostbite1 as a model plant that overcomes growth repression on ammonium, we have shown that its resistance to enhanced MG levels is based on increased GLXI activity and tolerance to elevated MG-derived advanced glycation end-product (MAGE) levels. Furthermore, our results show that glyoxalase pathway activity strongly affects cellular antioxidative systems. Under stress conditions, the disruption of the MG detoxification pathway limits the functioning of antioxidant defense. However, under optimal growth conditions, a defect in the MG detoxification route results in the activation of antioxidative systems.
Collapse
Affiliation(s)
- Klaudia Borysiuk
- Department of Plant Bioenergetics, Institute of Experimental Plant Biology and Biotechnology, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096, Warsaw, Poland
| | - Monika Ostaszewska-Bugajska
- Department of Plant Bioenergetics, Institute of Experimental Plant Biology and Biotechnology, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096, Warsaw, Poland
| | - Katsiaryna Kryzheuskaya
- Department of Plant Bioenergetics, Institute of Experimental Plant Biology and Biotechnology, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096, Warsaw, Poland
| | - Per Gardeström
- Department of Plant Physiology, Umeå Plant Science Centre, Umeå University, 90187, Umeå, Sweden
| | - Bożena Szal
- Department of Plant Bioenergetics, Institute of Experimental Plant Biology and Biotechnology, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096, Warsaw, Poland.
| |
Collapse
|
4
|
Wang B, Wang G, Zhu S. DNA Damage Inducible Protein 1 is Involved in Cold Adaption of Harvested Cucumber Fruit. FRONTIERS IN PLANT SCIENCE 2020; 10:1723. [PMID: 32038689 PMCID: PMC6992665 DOI: 10.3389/fpls.2019.01723] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 12/09/2019] [Indexed: 06/10/2023]
Abstract
Chilling stress can cause cellular DNA damage, affecting the faithful transmission of genetic information. Cold acclimation enhances chilling tolerance, but it is not clear that the process of cold adaption involves DNA damage responses, as cold acclimation does not form real chilling stress. Here we showed with cucumber fruit that pre-storage cold acclimation (PsCA) reduces chilling injury and upregulates DNA damage inducible protein1 (CsDDI1), suggesting that the chilling tolerance induced by cold acclimation involves CsDDI1 transcription. Application of nitric oxide (NO), abscisic acid (ABA) or H2O2 biosynthesis inhibitor before PsCA treatment downregulates CsDDI1 and aggravates chilling injury, while H2O2 generation inhibition plus exogenous NO or ABA application before PsCA treatment restores chilling tolerance, but does not restore CsDDI1 expression, suggesting H2O2 plays a crucial role in triggering cold adaption. CsDDI1 overexpression Arabidopsis lines show faster growth, stronger chilling tolerance, lower reactive oxygen species levels, enhanced catalase and superoxide dismutase activities and higher expression of nine other Arabidopsis defense genes under chilling stress, suggesting CsDDI1 strengthens defenses against chilling stress by enhancing antioxidant defense system. Taken together, CsDDI1 positively regulates chilling tolerance induced by cold acclimation in cucumber. In addition, H2O2 is involved in initiation of cold acclimation. While CsDDI1 upregulation requires H2O2 as a key signaling molecule, the upregulation of CsDDI1 activates an antioxidant system to reduce biotoxic accumulation of H2O2 and helps in DNA repair.
Collapse
Affiliation(s)
- Bin Wang
- Guangdong Province Key Laboratory of Postharvest Science of Fruits and Vegetables/Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture, College of Horticulture, South China Agricultural University, Guangzhou, China
- College of Ying-Tong Agricultural Science and Engineering, Shaoguan University, Shaoguan, China
| | - Guang Wang
- Guangdong Province Key Laboratory of Postharvest Science of Fruits and Vegetables/Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture, College of Horticulture, South China Agricultural University, Guangzhou, China
| | - Shijiang Zhu
- Guangdong Province Key Laboratory of Postharvest Science of Fruits and Vegetables/Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture, College of Horticulture, South China Agricultural University, Guangzhou, China
| |
Collapse
|
5
|
Kapoor D, Singh S, Kumar V, Romero R, Prasad R, Singh J. Antioxidant enzymes regulation in plants in reference to reactive oxygen species (ROS) and reactive nitrogen species (RNS). ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.plgene.2019.100182] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
6
|
Lee Y, Choi G, Jeon H, Kim D, Ryu S, Koo S, Ha KT, Kim S. Acupuncture stimulation at GB34 suppresses 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-induced oxidative stress in the striatum of mice. J Physiol Sci 2018; 68:455-462. [PMID: 28601951 PMCID: PMC10717018 DOI: 10.1007/s12576-017-0547-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Accepted: 05/28/2017] [Indexed: 01/05/2023]
Abstract
Recent studies have suggested that increased oxidative stress is a potential etiology in Parkinson's disease (PD). In this study, we investigated whether acupuncture regulates antioxidants in the striatum (ST) of a PD mouse model. Male C57BL/6 mice were administered 30 mg/kg of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) intraperitoneally once a day for 5 days and given acupuncture stimulation at SI3 or GB34 (Yanglingquan) was for 12 consecutive days. Dopaminergic neuronal survival in the nigrostriatal pathway and DJ-1 expression in the ST was evaluated by immunostaining, and the activities of superoxide dismutase (SOD) and catalase (CAT) in the ST was by enzyme-linked immunosorbent assay. MPTP administration induced dopaminergic neuronal death in the nigrostriatal pathway, which was suppressed by acupuncture stimulation at GB34. MPTP administration also suppressed DJ-1 expression and SOD and CAT activities in the ST, which were restored by acupuncture stimulation at GB34. These results indicate that the neuroprotective effect of acupuncture stimulation is due to regulation of the antioxidants.
Collapse
Affiliation(s)
- Yukyung Lee
- Division of Meridian and Structural Medicine, School of Korean Medicine, Pusan National University, Busandaehak-ro 49, Mulgeum-eup, Yangsan-si, Gyeongsangnam-do, 50612, Republic of Korea
| | - Gaeun Choi
- Division of Meridian and Structural Medicine, School of Korean Medicine, Pusan National University, Busandaehak-ro 49, Mulgeum-eup, Yangsan-si, Gyeongsangnam-do, 50612, Republic of Korea
| | - Hyongjun Jeon
- Division of Meridian and Structural Medicine, School of Korean Medicine, Pusan National University, Busandaehak-ro 49, Mulgeum-eup, Yangsan-si, Gyeongsangnam-do, 50612, Republic of Korea
| | - Dongsoo Kim
- Division of Meridian and Structural Medicine, School of Korean Medicine, Pusan National University, Busandaehak-ro 49, Mulgeum-eup, Yangsan-si, Gyeongsangnam-do, 50612, Republic of Korea
| | - Sun Ryu
- Korean Medicine Research Center for Healthy Aging, Pusan National University, Yangsan-si, Republic of Korea
| | - Sungtae Koo
- Division of Meridian and Structural Medicine, School of Korean Medicine, Pusan National University, Busandaehak-ro 49, Mulgeum-eup, Yangsan-si, Gyeongsangnam-do, 50612, Republic of Korea
- Korean Medicine Research Center for Healthy Aging, Pusan National University, Yangsan-si, Republic of Korea
| | - Ki-Tae Ha
- Korean Medicine Research Center for Healthy Aging, Pusan National University, Yangsan-si, Republic of Korea
| | - Seungtae Kim
- Division of Meridian and Structural Medicine, School of Korean Medicine, Pusan National University, Busandaehak-ro 49, Mulgeum-eup, Yangsan-si, Gyeongsangnam-do, 50612, Republic of Korea.
- Korean Medicine Research Center for Healthy Aging, Pusan National University, Yangsan-si, Republic of Korea.
| |
Collapse
|
7
|
Zhou W, Barkow JC, Freed CR. Running wheel exercise reduces α-synuclein aggregation and improves motor and cognitive function in a transgenic mouse model of Parkinson's disease. PLoS One 2017; 12:e0190160. [PMID: 29272304 PMCID: PMC5741244 DOI: 10.1371/journal.pone.0190160] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 12/08/2017] [Indexed: 01/01/2023] Open
Abstract
Exercise has been recommended to improve motor function in Parkinson patients, but its value in altering progression of disease is unknown. In this study, we examined the neuroprotective effects of running wheel exercise in mice. In adult wild-type mice, one week of running wheel activity led to significantly increased DJ-1 protein concentrations in muscle and plasma. In DJ-1 knockout mice, running wheel performance was much slower and Rotarod performance was reduced, suggesting that DJ-1 protein is required for normal motor activity. To see if exercise can prevent abnormal protein deposition and behavioral decline in transgenic animals expressing a mutant human form of α-synuclein in all neurons, we set up running wheels in the cages of pre-symptomatic animals at 12 months old. Activity was monitored for a 3-month period. After 3 months, motor and cognitive performance on the Rotarod and Morris Water Maze were significantly better in running animals compared to control transgenic animals with locked running wheels. Biochemical analysis revealed that running mice had significantly higher DJ-1, Hsp70 and BDNF concentrations and had significantly less α-synuclein aggregation in brain compared to control mice. By contrast, plasma concentrations of α-synuclein were significantly higher in exercising mice compared to control mice. Our results suggest that exercise may slow the progression of Parkinson's disease by preventing abnormal protein aggregation in brain.
Collapse
Affiliation(s)
- Wenbo Zhou
- Division of Clinical Pharmacology and Toxicology, Departments of Medicine, Pharmacology, Neurology, and Neurosurgery; University of Colorado Denver, School of Medicine, Aurora, CO, United States of America
| | - Jessica Cummiskey Barkow
- Division of Clinical Pharmacology and Toxicology, Departments of Medicine, Pharmacology, Neurology, and Neurosurgery; University of Colorado Denver, School of Medicine, Aurora, CO, United States of America
| | - Curt R. Freed
- Division of Clinical Pharmacology and Toxicology, Departments of Medicine, Pharmacology, Neurology, and Neurosurgery; University of Colorado Denver, School of Medicine, Aurora, CO, United States of America
| |
Collapse
|
8
|
Jha MK, Kim JH, Song GJ, Lee WH, Lee IK, Lee HW, An SSA, Kim S, Suk K. Functional dissection of astrocyte-secreted proteins: Implications in brain health and diseases. Prog Neurobiol 2017; 162:37-69. [PMID: 29247683 DOI: 10.1016/j.pneurobio.2017.12.003] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Revised: 10/23/2017] [Accepted: 12/08/2017] [Indexed: 02/07/2023]
Abstract
Astrocytes, which are homeostatic cells of the central nervous system (CNS), display remarkable heterogeneity in their morphology and function. Besides their physical and metabolic support to neurons, astrocytes modulate the blood-brain barrier, regulate CNS synaptogenesis, guide axon pathfinding, maintain brain homeostasis, affect neuronal development and plasticity, and contribute to diverse neuropathologies via secreted proteins. The identification of astrocytic proteome and secretome profiles has provided new insights into the maintenance of neuronal health and survival, the pathogenesis of brain injury, and neurodegeneration. Recent advances in proteomics research have provided an excellent catalog of astrocyte-secreted proteins. This review categorizes astrocyte-secreted proteins and discusses evidence that astrocytes play a crucial role in neuronal activity and brain function. An in-depth understanding of astrocyte-secreted proteins and their pathways is pivotal for the development of novel strategies for restoring brain homeostasis, limiting brain injury/inflammation, counteracting neurodegeneration, and obtaining functional recovery.
Collapse
Affiliation(s)
- Mithilesh Kumar Jha
- Department of Pharmacology, Brain Science and Engineering Institute, BK21 Plus KNU Biomedical Convergence Program, Kyungpook National University School of Medicine, Daegu, Republic of Korea; Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Jong-Heon Kim
- Department of Pharmacology, Brain Science and Engineering Institute, BK21 Plus KNU Biomedical Convergence Program, Kyungpook National University School of Medicine, Daegu, Republic of Korea
| | - Gyun Jee Song
- Department of Pharmacology, Brain Science and Engineering Institute, BK21 Plus KNU Biomedical Convergence Program, Kyungpook National University School of Medicine, Daegu, Republic of Korea
| | - Won-Ha Lee
- School of Life Sciences, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea
| | - In-Kyu Lee
- Department of Internal Medicine, Division of Endocrinology and Metabolism, Kyungpook National University School of Medicine, Daegu, Republic of Korea
| | - Ho-Won Lee
- Department of Neurology, Brain Science and Engineering Institute, Kyungpook National University School of Medicine, Daegu, Republic of Korea
| | - Seong Soo A An
- Department of BioNano Technology, Gachon University, Gyeonggi-do, Republic of Korea
| | - SangYun Kim
- Department of Neurology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Gyeonggi-do, Republic of Korea
| | - Kyoungho Suk
- Department of Pharmacology, Brain Science and Engineering Institute, BK21 Plus KNU Biomedical Convergence Program, Kyungpook National University School of Medicine, Daegu, Republic of Korea.
| |
Collapse
|
9
|
Kim HS, Nam ST, Mun SH, Lee SK, Kim HW, Park YH, Kim B, Won KJ, Kim HR, Park YM, Kim HS, Beaven MA, Kim YM, Choi WS. DJ-1 controls bone homeostasis through the regulation of osteoclast differentiation. Nat Commun 2017; 8:1519. [PMID: 29142196 PMCID: PMC5688089 DOI: 10.1038/s41467-017-01527-y] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Accepted: 09/25/2017] [Indexed: 11/09/2022] Open
Abstract
Receptor activator of NF-kB ligand (RANKL) generates intracellular reactive oxygen species (ROS), which increase RANKL-mediated signaling in osteoclast (OC) precursor bone marrow macrophages (BMMs). Here we show that a ROS scavenging protein DJ-1 negatively regulates RANKL-driven OC differentiation, also called osteoclastogenesis. DJ-1 ablation in mice leads to a decreased bone volume and an increase in OC numbers. In vitro, the activation of RANK-dependent signals is enhanced in DJ-1-deficient BMMs as compared to wild-type BMMs. DJ-1 suppresses the activation of both RANK-TRAF6 and RANK-FcRγ/Syk signaling pathways because of activation of Src homology region 2 domain-containing phosphatase-1, which is inhibited by ROS. Ablation of DJ-1 in mouse models of arthritis and RANKL-induced bone disease leads to an increase in the number of OCs, and exacerbation of bone damage. Overall, our results suggest that DJ-1 plays a role in bone homeostasis in normal physiology and in bone-associated pathology by negatively regulating osteoclastogenesis. Osteoclasts are involved in arthritis, and their differentiation depends on RANKL signaling. The author show that the ROS-scavenging protein DJ-1 negatively regulates RANKL signaling and that its ablation increases osteoclast numbers and exacerbates bone damage in mouse models of arthritis.
Collapse
Affiliation(s)
- Hyuk Soon Kim
- Department of Immunology and Physiology, School of Medicine, Konkuk University, Chungju, 380-701, Republic of Korea
| | - Seung Taek Nam
- Department of Immunology and Physiology, School of Medicine, Konkuk University, Chungju, 380-701, Republic of Korea
| | - Se Hwan Mun
- Department of Immunology and Physiology, School of Medicine, Konkuk University, Chungju, 380-701, Republic of Korea.,Department of Medicine, University of Connecticut Health Center, 263 Farmington Ave, Farmington, CT, 06030, USA
| | - Sun-Kyeong Lee
- Department of Medicine, University of Connecticut Health Center, 263 Farmington Ave, Farmington, CT, 06030, USA
| | - Hyun Woo Kim
- Department of Immunology and Physiology, School of Medicine, Konkuk University, Chungju, 380-701, Republic of Korea
| | - Young Hwan Park
- Department of Immunology and Physiology, School of Medicine, Konkuk University, Chungju, 380-701, Republic of Korea
| | - Bokyung Kim
- Department of Immunology and Physiology, School of Medicine, Konkuk University, Chungju, 380-701, Republic of Korea
| | - Kyung-Jong Won
- Department of Immunology and Physiology, School of Medicine, Konkuk University, Chungju, 380-701, Republic of Korea
| | - Hae-Rim Kim
- Department of Rheumatology, School of Medicine, Konkuk University, Chungju, 380-701, Republic of Korea
| | - Yeong-Min Park
- Department of Immunology and Physiology, School of Medicine, Konkuk University, Chungju, 380-701, Republic of Korea
| | - Hyung Sik Kim
- Department of Toxicology, School of Pharmacy, Sungkyunkwan University, Suwon, 440-746, Republic of Korea
| | - Michael A Beaven
- Laboratory of Molecular Immunology, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Young Mi Kim
- Department of Preventive Pharmacy, College of Pharmacy, Duksung Women's University, Seoul, 132-714, Republic of Korea
| | - Wahn Soo Choi
- Department of Immunology and Physiology, School of Medicine, Konkuk University, Chungju, 380-701, Republic of Korea.
| |
Collapse
|
10
|
Melvin P, Bankapalli K, D'Silva P, Shivaprasad PV. Methylglyoxal detoxification by a DJ-1 family protein provides dual abiotic and biotic stress tolerance in transgenic plants. PLANT MOLECULAR BIOLOGY 2017; 94:381-397. [PMID: 28444544 DOI: 10.1007/s11103-017-0613-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 04/18/2017] [Indexed: 05/15/2023]
Abstract
Methylglyoxal (MG) is a key signaling molecule resulting from glycolysis and other metabolic pathways. During abiotic stress, MG levels accumulate to toxic levels in affected cells. However, MG is routinely detoxified through the action of DJ1/PARK7/Hsp31 proteins that are highly conserved across kingdoms and mutations in such genes are associated with neurodegenerative diseases. Here, we report for the first time that, similar to abiotic stresses, MG levels increase during biotic stresses in plants, likely contributing to enhanced susceptibility to a wide range of stresses. We show that overexpression of yeast Heat shock protein 31 (Hsp31), a DJ-1 homolog with robust MG detoxifying capabilities, confers dual biotic and abiotic stress tolerance in model plant Nicotiana tabacum. Strikingly, overexpression of Hsp31 in tobacco imparts robust stress tolerance against diverse biotic stress inducers such as viruses, bacteria and fungi, in addition to tolerance against a range of abiotic stress inducers. During stress, Hsp31 was targeted to mitochondria and induced expression of key stress-related genes. These results indicate that Hsp31 is a novel attractive tool to engineer plants against both biotic and abiotic stresses.
Collapse
Affiliation(s)
- Prasad Melvin
- National Centre for Biological Sciences, GKVK Campus, Bangalore, 560 065, India
| | - Kondalarao Bankapalli
- Department of Biochemistry, Indian Institute of Science, C.V. Raman Avenue, Bangalore, 560 012, India
| | - Patrick D'Silva
- Department of Biochemistry, Indian Institute of Science, C.V. Raman Avenue, Bangalore, 560 012, India
| | - P V Shivaprasad
- National Centre for Biological Sciences, GKVK Campus, Bangalore, 560 065, India.
| |
Collapse
|
11
|
Lu L, Zhao S, Gao G, Sun X, Zhao H, Yang H. DJ-1/PARK7, But Not Its L166P Mutant Linked to Autosomal Recessive Parkinsonism, Modulates the Transcriptional Activity of the Orphan Nuclear Receptor Nurr1 In Vitro and In Vivo. Mol Neurobiol 2016; 53:7363-7374. [PMID: 26873851 DOI: 10.1007/s12035-016-9772-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Accepted: 02/02/2016] [Indexed: 12/16/2022]
Abstract
Although mutations of DJ-1 have been linked to autosomal recessive Parkinsonism for years, its physiological function and the pathological mechanism of its mutants are not well understood. We report for the first time that exogenous application of DJ-1, but not its L166P mutant, enhances the nuclear translocation and the transcriptional activity of Nurr1, a transcription factor essential for dopaminergic neuron development and maturation, both in vitro and in vivo. Knockdown of DJ-1 attenuates Nurr1 activity. Further investigation showed that signaling of Raf/MEK/ERK MAPKs is involved in this regulatory process and that activation induced by exogenous DJ-1 is antagonized by U0126, an ERK pathway inhibitor, indicating that DJ-1 modulates Nurr1 activity via the Raf/MEK/ERK pathway. Our findings shed light on the novel function of DJ-1 to enhance Nurr1 activity and provide the first insight into the molecular mechanism by which DJ-1 enhances Nurr1 activity.
Collapse
Affiliation(s)
- Lingling Lu
- Center of Parkinson's Disease, Beijing Institute for Brain Disorders, Department of Neurobiology, Capital Medical University, Beijing Center of Neural Regeneration and Repair, Key Laboratory for Neurodegenerative Diseases of the Ministry of Education, Beijing, 100069, China
| | - Shasha Zhao
- Center of Parkinson's Disease, Beijing Institute for Brain Disorders, Department of Neurobiology, Capital Medical University, Beijing Center of Neural Regeneration and Repair, Key Laboratory for Neurodegenerative Diseases of the Ministry of Education, Beijing, 100069, China
| | - Ge Gao
- Center of Parkinson's Disease, Beijing Institute for Brain Disorders, Department of Neurobiology, Capital Medical University, Beijing Center of Neural Regeneration and Repair, Key Laboratory for Neurodegenerative Diseases of the Ministry of Education, Beijing, 100069, China
| | - Xiaohong Sun
- Center of Parkinson's Disease, Beijing Institute for Brain Disorders, Department of Neurobiology, Capital Medical University, Beijing Center of Neural Regeneration and Repair, Key Laboratory for Neurodegenerative Diseases of the Ministry of Education, Beijing, 100069, China
| | - Huanying Zhao
- Center of Parkinson's Disease, Beijing Institute for Brain Disorders, Department of Neurobiology, Capital Medical University, Beijing Center of Neural Regeneration and Repair, Key Laboratory for Neurodegenerative Diseases of the Ministry of Education, Beijing, 100069, China
| | - Hui Yang
- Center of Parkinson's Disease, Beijing Institute for Brain Disorders, Department of Neurobiology, Capital Medical University, Beijing Center of Neural Regeneration and Repair, Key Laboratory for Neurodegenerative Diseases of the Ministry of Education, Beijing, 100069, China. .,Center of Parkinson's Disease, Beijing Institute of Brain Disorders, Capital Medical University, Beijing Center of Neural Regeneration and Repair, Key Laboratory for Neurodegenerative Diseases of the Ministry of Education, 10 You an men Wai, Xitoutiao, Beijing, 100069, China.
| |
Collapse
|
12
|
Guo P, Qi YP, Yang LT, Ye X, Huang JH, Chen LS. Long-Term Boron-Excess-Induced Alterations of Gene Profiles in Roots of Two Citrus Species Differing in Boron-Tolerance Revealed by cDNA-AFLP. FRONTIERS IN PLANT SCIENCE 2016; 7:898. [PMID: 27446128 PMCID: PMC4919357 DOI: 10.3389/fpls.2016.00898] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Accepted: 06/07/2016] [Indexed: 05/18/2023]
Abstract
Boron (B) toxicity is observed in some citrus orchards in China. However, limited data are available on the molecular mechanisms of citrus B-toxicity and B-tolerance. Using cDNA-AFLP, we identified 20 up- and 52 down-regulated genes, and 44 up- and 66 down-regulated genes from excess B-treated Citrus sinensis and Citrus grandis roots, respectively, thereby demonstrating that gene expression profiles were more affected in the latter. In addition, phosphorus and total soluble protein concentrations were lowered only in excess B-treated C. grandis roots. Apparently, C. sinensis had higher B-tolerance than C. grandis. Our results suggested that the following several aspects were responsible for the difference in the B-tolerance between the two citrus species including: (a) B-excess induced Root Hair Defective 3 expression in C. sinensis roots, and repressed villin4 expression in C. grandis roots; accordingly, root growth was less inhibited by B-excess in the former; (b) antioxidant systems were impaired in excess B-treated C. grandis roots, hence accelerating root senescence; (c) genes related to Ca(2+) signals were inhibited (induced) by B-excess in C. grandis (C. sinensis) roots. B-excess-responsive genes related to energy (i.e., alternative oxidase and cytochrome P450), lipid (i.e., Glycerol-3-phosphate acyltransferase 9 and citrus dioxygenase), and nucleic acid (i.e., HDA19, histone 4, and ribonucleotide reductase RNR1 like protein) metabolisms also possibly accounted for the difference in the B-tolerance between the two citrus species. These data increased our understanding of the mechanisms on citrus B-toxicity and B-tolerance at transcriptional level.
Collapse
Affiliation(s)
- Peng Guo
- Institute of Plant Nutritional Physiology and Molecular Biology, College of Resources and Environment, Fujian Agriculture and Forestry UniversityFuzhou, China
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry UniversityFuzhou, China
| | - Yi-Ping Qi
- Institute of Materia Medica, Fujian Academy of Medical SciencesFuzhou, China
| | - Lin-Tong Yang
- Institute of Plant Nutritional Physiology and Molecular Biology, College of Resources and Environment, Fujian Agriculture and Forestry UniversityFuzhou, China
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry UniversityFuzhou, China
| | - Xin Ye
- Institute of Plant Nutritional Physiology and Molecular Biology, College of Resources and Environment, Fujian Agriculture and Forestry UniversityFuzhou, China
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry UniversityFuzhou, China
| | - Jing-Hao Huang
- Institute of Plant Nutritional Physiology and Molecular Biology, College of Resources and Environment, Fujian Agriculture and Forestry UniversityFuzhou, China
- Pomological Institute, Fujian Academy of Agricultural SciencesFuzhou, China
| | - Li-Song Chen
- Institute of Plant Nutritional Physiology and Molecular Biology, College of Resources and Environment, Fujian Agriculture and Forestry UniversityFuzhou, China
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry UniversityFuzhou, China
- The Higher Educational Key Laboratory of Fujian Province for Soil Ecosystem Health and Regulation, Fujian Agriculture and Forestry UniversityFuzhou, China
- *Correspondence: Li-Song Chen
| |
Collapse
|
13
|
Abstract
The selective degradation of damaged or excessive mitochondria by autophagy is termed mitophagy. Mitophagy is crucial for mitochondrial quality control and has been implicated in several neurodegenerative disorders as well as in ischemic brain injury. Emerging evidence suggested that the role of mitophagy in cerebral ischemia may depend on different pathological processes. In particular, a neuroprotective role of mitophagy has been proposed, and the regulation of mitophagy seems to be important in cell survival. For these reasons, extensive investigations aimed to profile the mitophagy process and its underlying molecular mechanisms have been executed in recent years. In this review, we summarize the current knowledge regarding the mitophagy process and its role in cerebral ischemia, and focus on the pathological events and molecules that regulate mitophagy in ischemic brain injury.
Collapse
Affiliation(s)
- Yang Yuan
- Department of Pharmacology, Key Laboratory of Medical Neurobiology (Ministry of Health of China), College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | | | | | | |
Collapse
|
14
|
Gardiner J. Use of Arabidopsis to Model Hereditary Spastic Paraplegia and Other Movement Disorders. Mov Disord 2015. [DOI: 10.1016/b978-0-12-405195-9.00075-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
|
15
|
Baluška F, Mancuso S. Root apex transition zone as oscillatory zone. FRONTIERS IN PLANT SCIENCE 2013; 4:354. [PMID: 24106493 PMCID: PMC3788588 DOI: 10.3389/fpls.2013.00354] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Accepted: 08/22/2013] [Indexed: 05/17/2023]
Abstract
Root apex of higher plants shows very high sensitivity to environmental stimuli. The root cap acts as the most prominent plant sensory organ; sensing diverse physical parameters such as gravity, light, humidity, oxygen, and critical inorganic nutrients. However, the motoric responses to these stimuli are accomplished in the elongation region. This spatial discrepancy was solved when we have discovered and characterized the transition zone which is interpolated between the apical meristem and the subapical elongation zone. Cells of this zone are very active in the cytoskeletal rearrangements, endocytosis and endocytic vesicle recycling, as well as in electric activities. Here we discuss the oscillatory nature of the transition zone which, together with several other features of this zone, suggest that it acts as some kind of command center. In accordance with the early proposal of Charles and Francis Darwin, cells of this root zone receive sensory information from the root cap and instruct the motoric responses of cells in the elongation zone.
Collapse
Affiliation(s)
- František Baluška
- Institute of Cellular and Molecular Botany, Department of Plant Cell Biology, University of BonnBonn, Germany
| | - Stefano Mancuso
- LINV – DiSPAA, Department of Agri-Food and Environmental Science, University of FlorenceSesto Fiorentino, Italy
| |
Collapse
|
16
|
Takáč T, Pechan T, Samajová O, Samaj J. Vesicular trafficking and stress response coupled to PI3K inhibition by LY294002 as revealed by proteomic and cell biological analysis. J Proteome Res 2013; 12:4435-48. [PMID: 23931732 DOI: 10.1021/pr400466x] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
LY294002 is a synthetic quercetin-like compound, which, unlike wortmannin, is more specific inhibitor of phosphatidylinositol 3-kinase (PI3K). It inhibits endocytosis and vacuolar transport. We report here on the proteome-wide effects of LY294002 on Arabidopsis roots focusing on proteins involved in vesicular trafficking and stress response. At the subcellular level, LY294002 caused swelling and clustering of late endosomes leading to inhibition of vacuolar transport. At the proteome level, this compound caused changes in abundances of proteins categorized to 10 functional classes. Among proteins involved in vesicular trafficking, a small GTPase ARFA1f was more abundant, indicating its possible contribution to the aggregation and fusion of late endosomes triggered by LY294002. Our study provides new information on storage proteins and vacuolar hydrolases in vegetative tissues treated by LY294002. Vacuolar hydrolases were downregulated, while storage proteins were more abundant, suggesting that storage proteins were protected from degradation in swollen multivesicular bodies upon LY294002 treatment. Upregulation of 2S albumin was validated by immunoblotting and immunolabeling analyses. Our study also pointed to the control of antioxidant enzyme machinery by PI3K because LY294002 downregulated two isozymes of superoxide dismutase. This most likely occurred via PI3K-mediated downregulation of protein AtDJ1A. Finally, we discuss specificity differences of LY294002 and wortmannin against PI3K, which are reflected at the proteome level. Compared with wortmannin, LY294002 showed more narrow and perhaps also more specific effects on proteins, as suggested by gene ontology functional annotation.
Collapse
Affiliation(s)
- Tomáš Takáč
- Centre of the Region Haná for Biotechnological and Agricultural Research, Department of Cell Biology, Faculty of Science, Palacký University , Šlechtitelů 11, CZ-783 71 Olomouc, Czech Republic
| | | | | | | |
Collapse
|
17
|
Abstract
AbstractThe health-promoting effects of antioxidant vitamins C and E supplementation are unclear. This study investigated the effects of vitamins C and E on the activities of reactive oxygen species (ROS)-scavenging enzymes and protein and lipid peroxidation statuses under resting and exercise-induced conditions. Thirteen healthy, previously untrained males (age 20–21 years) participated in this study. Seven subjects performed physical exercise using a cycle ergometer, and six performed a 6-min walk test (6MWT) prior to vitamin administration and after 1-week oral administration of vitamin C (1000 mg/day) and vitamin E (300 IU/day). Venous blood samples were collected before and after exercise. Plasma vitamin C concentration, superoxide dismutase (SOD) activity, glutathione peroxidase (GPx) activity, and protein carbonyl and thiobarbituric acid-reactive substance (TBARS) contents were measured. Antioxidant supplementation increased vitamin C concentration by 34% (p<0.05), decreased SOD activity by 17% (p<0.05), increased GPx activity by 13% (p<0.05), and increased the GPx/SOD activity ratio by 37% (p<0.05). Protein carbonyl and TBARS contents were unaffected. Antioxidant vitamins effectively increase the plasma GPx/SOD activity ratio, but fail to reduce protein carbonyl levels induced by exercise.
Collapse
|
18
|
Kim DK, Kim HS, Kim AR, Kim JH, Kim B, Noh G, Kim HS, Beaven MA, Kim YM, Choi WS. DJ-1 regulates mast cell activation and IgE-mediated allergic responses. J Allergy Clin Immunol 2013; 131:1653-62. [PMID: 23182168 PMCID: PMC3594621 DOI: 10.1016/j.jaci.2012.10.012] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Revised: 09/06/2012] [Accepted: 10/11/2012] [Indexed: 11/28/2022]
Abstract
BACKGROUND DJ-1 is an antioxidant protein known to reduce levels of reactive oxygen species (ROS), but its presence or function in mast cells and allergic diseases is unknown. OBJECTIVES We sought to determine the role and mechanism of DJ-1 in allergic responses in vitro and in vivo. METHODS ROS and DJ-1 levels in serum or culture medium were measured with ELISA kits. The role of DJ-1 was evaluated in mast cell cultures and passive cutaneous anaphylaxis in normal or DJ-1 knockout (KO) mice. The mechanism of DJ-1 action was examined by using immunoblotting, immunoprecipitation, RT-PCR, and other molecular biological approaches. RESULTS Patients with atopic dermatitis had increased levels of ROS and diminished levels of DJ-1. DJ-1 KO mice exhibited enhanced passive cutaneous anaphylaxis and augmented ROS levels in sera and bone marrow-derived mast cells (BMMCs). Furthermore, antigen-induced degranulation and production of TNF-α and IL-4 were significantly amplified in DJ-1 KO and anti-DJ-1 small interfering RNA-transfected BMMCs compared with that seen in wild-type (WT) BMMCs. Studies with these cells and BMMCs transfected with small interfering RNAs against the phosphatases Src homology domain 2-containing protein tyrosine phosphatase (SHP) 1 and SHP-2 revealed that the DJ-1 KO phenotype could be attributed to suppression of SHP-1 activity and enhancement of SHP-2 activity, leading to strengthened signaling through linker for activation of T cells, phospholipase Cγ, and mitogen-activated protein kinases. CONCLUSIONS A deficiency or constitutive activation of DJ-1 can have implications in mast cell-driven allergic diseases, such as asthma and anaphylaxis.
Collapse
MESH Headings
- Adaptor Proteins, Signal Transducing/metabolism
- Adolescent
- Adult
- Animals
- Antigens/immunology
- Bone Marrow Cells/immunology
- Bone Marrow Cells/metabolism
- Cell Degranulation/immunology
- Child
- Child, Preschool
- Cytokines/biosynthesis
- Dermatitis, Atopic/immunology
- Dermatitis, Atopic/metabolism
- Disease Models, Animal
- Female
- Humans
- Hypersensitivity, Immediate/genetics
- Hypersensitivity, Immediate/immunology
- Hypersensitivity, Immediate/metabolism
- Interleukin-4/metabolism
- Intracellular Signaling Peptides and Proteins/blood
- Intracellular Signaling Peptides and Proteins/genetics
- Intracellular Signaling Peptides and Proteins/metabolism
- Male
- Mast Cells/immunology
- Mast Cells/metabolism
- Membrane Proteins/metabolism
- Mice
- Mice, Knockout
- Middle Aged
- Oncogene Proteins/blood
- Oncogene Proteins/genetics
- Oncogene Proteins/metabolism
- Passive Cutaneous Anaphylaxis
- Phosphoproteins/metabolism
- Phosphorylation
- Protein Deglycase DJ-1
- Protein Tyrosine Phosphatase, Non-Receptor Type 11/metabolism
- Protein Tyrosine Phosphatase, Non-Receptor Type 6/metabolism
- Protein-Tyrosine Kinases/metabolism
- Proto-Oncogene Proteins c-fyn/metabolism
- RNA Interference
- Reactive Oxygen Species/metabolism
- Receptors, IgE/metabolism
- Signal Transduction
- Syk Kinase
- Tumor Necrosis Factor-alpha/metabolism
- Young Adult
Collapse
Affiliation(s)
- Do Kyun Kim
- Department of Immunology and physiology, Functional Genomics Institute, College of Medicine, Konkuk University, Chungju
| | - Hyuk Soon Kim
- Department of Immunology and physiology, Functional Genomics Institute, College of Medicine, Konkuk University, Chungju
| | - A-Ram Kim
- Department of Immunology and physiology, Functional Genomics Institute, College of Medicine, Konkuk University, Chungju
| | - Ji Hyung Kim
- Department of Immunology and physiology, Functional Genomics Institute, College of Medicine, Konkuk University, Chungju
| | - Bokyung Kim
- Department of Immunology and physiology, Functional Genomics Institute, College of Medicine, Konkuk University, Chungju
| | - Geunwoong Noh
- Subdivision of Allergy and Clinical Immunology, Department of Pediatrics, Chungnam National University Hospital, Daejeon
| | - Hyung Sik Kim
- College of Pharmacy, Pusan National University, Busan
| | - Michael A. Beaven
- Laboratory of Molecular Immunology, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD
| | - Young Mi Kim
- College of Pharmacy, Duksung Women’s University, Seoul
| | - Wahn Soo Choi
- Department of Immunology and physiology, Functional Genomics Institute, College of Medicine, Konkuk University, Chungju
| |
Collapse
|
19
|
Kampfer C, Spillner S, Spinnler K, Schwarzer JU, Terradas C, Ponzio R, Puigdomenech E, Levalle O, Köhn FM, Matzkin ME, Calandra RS, Frungieri MB, Mayerhofer A. Evidence for an adaptation in ROS scavenging systems in human testicular peritubular cells from infertility patients. ACTA ACUST UNITED AC 2012; 35:793-801. [PMID: 22640168 DOI: 10.1111/j.1365-2605.2012.01281.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Fibrosis, increased amounts of immune cells and expression of COX-2 in the testes of infertility patients provide circumstantial evidence for a specific testicular milieu, in which reactive oxygen species (ROS) could be increased. If ROS level increase and/or ROS scavengers decrease, the resulting testicular oxidative stress may contribute to human male infertility. Primary peritubular cells of the human testis, from men with normal spermatogenesis (HTPCs) and infertile patients (HTPC-Fs), previously allowed us to identify an end product of COX-2 action, a prostaglandin derivative (15dPGJ2), which acts via ROS to alter the phenotype of peritubular cells, at least in vitro. Using testicular biopsies we now found 15dPGJ2 in patients and hence we started exploring the ROS scavenger systems of the human testis. This system includes catalase, DJ-1, peroxiredoxin 1, SOD 1 and 2, glutathione-S-transferase and HMOX-1, which were identified by RT-PCR/sequencing in HTPCs and HTPC-Fs and whole testes. Catalase, DJ-1, peroxiredoxin 1 and SOD 2 were also detected by Western blots and in part by immunohistochemistry in testicular samples. Western blots of cultured cells further revealed that catalase levels, but not peroxiredoxin 1, SOD 2 or DJ-1 levels, are significantly higher in HTPC-Fs than in HTPCs. This particular difference is correlated with the improved ability of HTPC-Fs to handle ROS, which became evident when cells were exposed to 100 μm H(2)O(2). H(2)O(2) induced stronger responses in HTPCs than in HTPC-Fs, which correlates with the lower level of the H(2)O(2)-degrading defence enzyme catalase in HTPCs. The results provide evidence for an adaptation to elevated ROS levels, which must have occurred in vivo and which persist in vitro in HTPC-Fs. Thus, in infertile men with impaired spermatogenesis elevated ROS levels likely exist, at least in the tubular wall.
Collapse
Affiliation(s)
- C Kampfer
- Anatomy and Cell Biology, Biedersteiner Strasse 29, D-80802 Munich, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Proteomics in Parkinson's disease: An unbiased approach towards peripheral biomarkers and new therapies. J Biotechnol 2011; 156:325-37. [DOI: 10.1016/j.jbiotec.2011.08.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2011] [Revised: 06/24/2011] [Accepted: 08/08/2011] [Indexed: 12/27/2022]
|
21
|
Kim DH, Choi JW, Joo JI, Wang X, Choi DK, Oh TS, Yun JW. Changes in expression of skeletal muscle proteins between obesity-prone and obesity-resistant rats induced by a high-fat diet. J Proteome Res 2011; 10:1281-92. [PMID: 21142077 DOI: 10.1021/pr101048q] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A primary goal in obesity research is to determine why some people become obese (obesity-prone, OP) and others do not (obesity-resistant, OR) when exposed to high-calorie diets. The metabolic changes that cause reduced adiposity and resistance to obesity development have yet to be determined. We thus performed proteomic analysis on muscular proteins from OP and OR rats in order to determine whether other novel molecules are involved in this response. To this end, rats were fed a low- or high-fat diet for 8 weeks and were then classified into OP and OR rats by body weight gain. OP rats gained about 25% more body weight than OR rats, even though food intake did not differ significantly between the two groups. Proteomic analysis using 2-DE demonstrated differential expression of 26 spots from a total of 658 matched spots, of which 23 spots were identified as skeletal muscle proteins altered between OP and OR rats by peptide mass fingerprinting. Muscle proteome data enabled us to draw the conclusion that enhanced regulation of proteins involved in lipid metabolism and muscle contraction, as well as increased expression of marker proteins for oxidative muscle type (type I), contributed to obesity-resistance; however, antioxidative proteins did not.
Collapse
Affiliation(s)
- Dong Hyun Kim
- Department of Biotechnology, Daegu University, Kynungsan, Kyungbuk, Republic of Korea
| | | | | | | | | | | | | |
Collapse
|