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Cho E, Che X, Ang MJ, Cheon S, Lee J, Kim KS, Lee CH, Lee SY, Yang HY, Moon C, Park C, Choi JY, Lee TH. Peroxiredoxin 5 regulates osteogenic differentiation through interaction with hnRNPK during bone regeneration. eLife 2023; 12:80122. [PMID: 36735291 PMCID: PMC9897727 DOI: 10.7554/elife.80122] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 01/18/2023] [Indexed: 02/04/2023] Open
Abstract
Peroxiredoxin 5 (Prdx5) is involved in pathophysiological regulation via the stress-induced cellular response. However, its function in the bone remains largely unknown. Here, we show that Prdx5 is involved in osteoclast and osteoblast differentiation, resulting in osteoporotic phenotypes in Prdx5 knockout (Prdx5Ko) male mice. To investigate the function of Prdx5 in the bone, osteoblasts were analyzed through immunoprecipitation (IP) and liquid chromatography combined with tandem mass spectrometry (LC-MS/MS) methods, while osteoclasts were analyzed through RNA-sequencing. Heterogeneous nuclear ribonucleoprotein K (hnRNPK) was identified as a potential binding partner of Prdx5 during osteoblast differentiation in vitro. Prdx5 acts as a negative regulator of hnRNPK-mediated osteocalcin (Bglap) expression. In addition, transcriptomic analysis revealed that in vitro differentiated osteoclasts from the bone marrow-derived macrophages of Prdx5Ko mice showed enhanced expression of several osteoclast-related genes. These findings indicate that Prdx5 might contribute to the maintenance of bone homeostasis by regulating osteoblast differentiation. This study proposes a new function of Prdx5 in bone remodeling that may be used in developing therapeutic strategies for bone diseases.
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Affiliation(s)
- Eunjin Cho
- Department of Oral Biochemistry, Korea Mouse Phenotype Center (KMPC), Dental Science Research Institute, School of Dentistry, Chonnam National UniversityGwangjuRepublic of Korea
| | - Xiangguo Che
- Department of Biochemistry and Cell Biology, BK21 Plus KNU Biomedical Convergence Program, Skeletal Diseases Analysis Center, Korea Mouse Phenotyping Center (KMPC), School of Medicine, Kyungpook National UniversityDaeguRepublic of Korea
| | - Mary Jasmin Ang
- Department of Basic Veterinary Sciences, College of Veterinary Medicine, University of the Philippines Los BañosLos BañosPhilippines
| | - Seongmin Cheon
- School of Biological Sciences and Technology, Chonnam National UniversityGwangjuRepublic of Korea,Proteomics Core Facility, Biomedical Research Institute, Seoul National University HospitalSeoulRepublic of Korea
| | - Jinkyung Lee
- Department of Oral Biochemistry, Korea Mouse Phenotype Center (KMPC), Dental Science Research Institute, School of Dentistry, Chonnam National UniversityGwangjuRepublic of Korea
| | - Kwang Soo Kim
- Department of Microbiology, Department of Molecular Medicine (BK21plus), Chonnam National University Medical SchoolGwangjuRepublic of Korea
| | - Chang Hoon Lee
- Therapeutic & Biotechnology Division, Drug Discovery Platform Research Center, Research Institute of Chemical Technology (KRICT)DaejeonRepublic of Korea
| | - Sang-Yeop Lee
- Research Center for Bioconvergence Analysis, Korea Basic Science InstituteOchangRepublic of Korea
| | - Hee-Young Yang
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation FoundationDaeguRepublic of Korea
| | - Changjong Moon
- Department of Veterinary Anatomy and Animal Behavior, College of Veterinary Medicine and BK21 FOUR Program, Chonnam National UniversityGwangjuRepublic of Korea
| | - Chungoo Park
- School of Biological Sciences and Technology, Chonnam National UniversityGwangjuRepublic of Korea
| | - Je-Yong Choi
- Department of Biochemistry and Cell Biology, BK21 Plus KNU Biomedical Convergence Program, Skeletal Diseases Analysis Center, Korea Mouse Phenotyping Center (KMPC), School of Medicine, Kyungpook National UniversityDaeguRepublic of Korea
| | - Tae-Hoon Lee
- Department of Oral Biochemistry, Korea Mouse Phenotype Center (KMPC), Dental Science Research Institute, School of Dentistry, Chonnam National UniversityGwangjuRepublic of Korea
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Choi HI, Kim DH, Park JS, Kim IJ, Kim CS, Bae EH, Ma SK, Lee TH, Kim SW. Peroxiredoxin V (PrdxV) negatively regulates EGFR/Stat3-mediated fibrogenesis via a Cys48-dependent interaction between PrdxV and Stat3. Sci Rep 2019; 9:8751. [PMID: 31217524 PMCID: PMC6584630 DOI: 10.1038/s41598-019-45347-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 05/31/2019] [Indexed: 12/11/2022] Open
Abstract
Activation of the epidermal growth factor receptor (EGFR)/signal transducer and activator of transcription 3 (Stat3) signaling pathway has been reported to be associated with renal fibrosis. We have recently demonstrated that peroxiredoxin V (PrdxV) acted as an antifibrotic effector by inhibiting the activity of Stat3 in TGF-β-treated NRK49F cells. However, the underlying mechanism of PrdxV remains poorly understood. To investigate molecular mechanism of PrdxV, we used a transgenic mouse model expressing PrdxV siRNA (PrdxVsi mice) and performed unilateral ureteral obstruction (UUO) for 7 days. 209/MDCT cells were transiently transfected with HA-tagged WT PrdxV and C48S PrdxV. Transgenic PrdxVsi mice displayed an exacerbated epithelial-to-mesenchymal transition (EMT) as well as an increase in oxidative stress induced by UUO. In the UUO kidney of the PrdxVsi mouse, knockdown of PrdxV increased Tyr1068-specific EGFR and Stat3 phosphorylation, whereas overexpression of WT PrdxV in 209/MDCT cells showed the opposite results. Immunoprecipitation revealed the specific interaction between WT PrdxV and Stat3 in the absence or presence of TGF-β stimulation, whereas no PrdxV-EGFR or C48S PrdxV-Stat3 interactions were detected under any conditions. In conclusion, PrdxV is an antifibrotic effector that sustains renal physiology. Direct interaction between PrdxV and Stat3 through Cys48 is a major molecular mechanism.
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Affiliation(s)
- Hoon-In Choi
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Dong-Hyun Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Jung Sun Park
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - In Jin Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Chang Seong Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Tae-Hoon Lee
- Department of Biochemistry, Dental Science Research Institute, School of Dentistry, Chonnam National University and Korea Mouse Phenotype Center, Gwangju, Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea.
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Cho SY, Protzman RA, Kim YO, Vaidya B, Oh MJ, Kwon J, Kim D. Elucidation of mechanism for host response to VHSV infection at varying temperatures in vitro and in vivo through proteomic analysis. FISH & SHELLFISH IMMUNOLOGY 2019; 88:244-253. [PMID: 30802632 DOI: 10.1016/j.fsi.2019.02.037] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 01/31/2019] [Accepted: 02/18/2019] [Indexed: 06/09/2023]
Abstract
Seasonal temperature has a major influence on the infectivity of pathogens and the host immune system. Viral hemorrhagic septicemia virus (VHSV) is one such pathogen that only causes the mortality of fish at low temperatures. This study aims to discover the host defense mechanism and pathway for resistance to VHSV at higher temperatures. We first observed the VHSV infection patterns at low and higher temperatures in fathead minnow (FHM) cells (20 °C and 28 °C) and zebrafish (15 °C and 25 °C). In comparison to the 20 °C infection, FHM cells infected at 28 °C showed decreased apoptosis, increased cell viability, and reduced VHSV N gene expression. In zebrafish, infection at 25 °C caused no mortality and significantly reduced the N gene copy number in comparison to infection at 15 °C. To explore the antiviral infection mechanisms induced by high temperature in vitro and in vivo, the changes in the proteomic profile were measured through UPLC-MSE analysis. ACADL, PTPN6, TLR1, F7, A2M, and GLI2 were selected as high temperature-specific biomarkers in the FHM cell proteome; and MYH9, HPX, ANTXR1, APOA1, HBZ, and MYH7 were selected in zebrafish. Increased immune response, anticoagulation effects, and the formation of lymphocytes from hematopoietic stem cells were analyzed as functions that were commonly induced by high temperature in vitro and in vivo. Among these biomarkers, GLI2 was predicted as an upstream regulator. When treated with GANT58, a GLI-specific inhibitor, cell viability was further reduced due to GLI2 inhibition during VHSV infection at varying temperatures in FHM cells, and the mortality in zebrafish was induced earlier at the low temperature. Overall, this study discovered a new mechanism for VHSV infection in vitro and in vivo that is regulated by GLI2 protein.
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Affiliation(s)
- Se-Young Cho
- Biological Disaster Analysis Group, Korea Basic Science Institute, Daejeon, 34133, Republic of Korea
| | - Rachael A Protzman
- Biological Disaster Analysis Group, Korea Basic Science Institute, Daejeon, 34133, Republic of Korea; Department of Food Science and Technology and Foodborne Virus Research Center, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Yeong O Kim
- Department of Food Science and Technology and Foodborne Virus Research Center, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Bipin Vaidya
- Department of Food Science and Technology and Foodborne Virus Research Center, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Myung-Joo Oh
- Department of Aqualife Medicine, College of Fisheries and Ocean Science, Chonnam National University, Yeosu, 59626, Republic of Korea
| | - Joseph Kwon
- Biological Disaster Analysis Group, Korea Basic Science Institute, Daejeon, 34133, Republic of Korea.
| | - Duwoon Kim
- Department of Food Science and Technology and Foodborne Virus Research Center, Chonnam National University, Gwangju, 61186, Republic of Korea.
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Ishikawa Y, Fedeles S, Marlier A, Zhang C, Gallagher AR, Lee AH, Somlo S. Spliced XBP1 Rescues Renal Interstitial Inflammation Due to Loss of Sec63 in Collecting Ducts. J Am Soc Nephrol 2019; 30:443-459. [PMID: 30745418 PMCID: PMC6405156 DOI: 10.1681/asn.2018060614] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 01/07/2019] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND SEC63 encodes a resident protein in the endoplasmic reticulum membrane that, when mutated, causes human autosomal dominant polycystic liver disease. Selective inactivation of Sec63 in all distal nephron segments in embryonic mouse kidney results in polycystin-1-mediated polycystic kidney disease (PKD). It also activates the Ire1α-Xbp1 branch of the unfolded protein response, producing Xbp1s, the active transcription factor promoting expression of specific genes to alleviate endoplasmic reticulum stress. Simultaneous inactivation of Xbp1 and Sec63 worsens PKD in this model. METHODS We explored the renal effects of postnatal inactivation of Sec63 alone or with concomitant inactivation of Xbp1 or Ire1α, specifically in the collecting ducts of neonatal mice. RESULTS The later onset of inactivation of Sec63 restricted to the collecting duct does not result in overt activation of the Ire1α-Xbp1 pathway or cause polycystin-1-dependent PKD. Inactivating Sec63 along with either Xbp1 or Ire1α in this model causes interstitial inflammation and associated fibrosis with decline in kidney function over several months. Re-expression of XBP1s in vivo completely rescues the chronic kidney injury observed after inactivation of Sec63 with either Xbp1 or Ire1α. CONCLUSIONS In the absence of Sec63, basal levels of Xbp1s activity in collecting ducts is both necessary and sufficient to maintain proteostasis (protein homeostasis) and protect against inflammation, myofibroblast activation, and kidney functional decline. The Sec63-Xbp1 double knockout mouse offers a novel genetic model of chronic tubulointerstitial kidney injury, using collecting duct proteostasis defects as a platform for discovery of signals that may underlie CKD of disparate etiologies.
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Affiliation(s)
| | | | | | | | | | - Ann-Hwee Lee
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, New York
| | - Stefan Somlo
- Departments of Internal Medicine and
- Genetics, Yale University School of Medicine, New Haven, Connecticut; and
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Jeong EH, Vaidya B, Cho SY, Park MA, Kaewintajuk K, Kim SR, Oh MJ, Choi JS, Kwon J, Kim D. Identification of regulators of the early stage of viral hemorrhagic septicemia virus infection during curcumin treatment. FISH & SHELLFISH IMMUNOLOGY 2015; 45:184-193. [PMID: 25862970 DOI: 10.1016/j.fsi.2015.03.042] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2014] [Revised: 03/26/2015] [Accepted: 03/30/2015] [Indexed: 06/04/2023]
Abstract
The effect of curcumin pretreatment (15-240 μM) in fathead minnow cells infected with viral hemorrhagic septicemia virus (VHSV) was evaluated. Cell viability, apoptosis and viral copy number were analyzed using Cell Counting Kit-8 assay, Annexin V staining, and reverse transcription-PCR, respectively. Pretreatment with 120 μM curcumin showed an increase in viability (>90% of mock) of VHSV-infected cells and reduction in the copy number (0.2-log reduction in VHSV N gene expression), reactive oxygen species and apoptosis in the cells without cytotoxic effects. To understand the mechanisms underlaying the antiviral effects of curcumin pretreatment, a comparative proteomic analysis was performed in four samples (M, mock; C, curcumin-treated; V, VHSV-infected; and CV, curcumin-treated VHSV-infected) in triplicate. In total, 185 proteins were detected. The analysis showed that three proteins, including heat shock cognate 71 (HSC71), actin, alpha cardiac muscle (ACTC1) and elongation factor 1 (EEF1) were differentially expressed between V and CV samples. Network analysis performed by Ingenuity Pathways Analysis (IPA) showed that HSC71 was the primary protein interacting with fibronectin (FN) 1, actins (ACTB, ACTG, F-actin) and gelsolin (GSN) in both V and CV samples and thus is a strong target candidate for the protection from VHSV infection at the viral entry stage. Our proteomics data suggest that curcumin pretreatment inhibits entry of VHSV in cells by downregulating FN1 or upregulating F-actin. For both proteins, HSC71 acts as a binding protein that modulates their functions. Furthermore, consistent with the effect of a heat shock protein inhibitor (KNK437), curcumin downregulated HSC71 expression with increasing viability of VHSV-infected cells and inhibited VHSV replication, suggesting that the downregulation of HSC71 could be responsible for the antiviral activity of curcumin. In conclusion, this study indicates that the suppression of viral entry by rearrangement of the F-actin/G-actin ratio via downregulating HSC71 is a plausible mechanism by which curcumin pretreatment controls the early stages of VHSV infection.
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Affiliation(s)
- Eun-Hye Jeong
- Department of Food Science and Technology, Chonnam National University, Gwangju 500-757, South Korea
| | - Bipin Vaidya
- Department of Food Science and Technology, Chonnam National University, Gwangju 500-757, South Korea; Bioenergy Research Center, Chonnam National University, Gwangju 500-757, South Korea
| | - Se-Young Cho
- Department of Food Science and Technology, Chonnam National University, Gwangju 500-757, South Korea
| | - Myoung-Ae Park
- Aquatic Life Disease Control Division, National Fisheries Research and Development Institute, Busan 619-705, South Korea
| | - Kusuma Kaewintajuk
- Department of Food Science and Technology, Chonnam National University, Gwangju 500-757, South Korea
| | - Seok Ryel Kim
- West Sea Fisheries Research Institute, National Fisheries Research and Development Institute, Incheon 400-420, South Korea
| | - Myung-Joo Oh
- Department of Aqualife Medicine, Chonnam National University, Yeosu 550-749, South Korea
| | - Jong-Soon Choi
- Biological Disaster Analysis Group, Korea Basic Science Institute, Daejeon 305-806, South Korea
| | - Joseph Kwon
- Biological Disaster Analysis Group, Korea Basic Science Institute, Daejeon 305-806, South Korea.
| | - Duwoon Kim
- Department of Food Science and Technology, Chonnam National University, Gwangju 500-757, South Korea; Bioenergy Research Center, Chonnam National University, Gwangju 500-757, South Korea; Agribio Disaster Research Center, Institute of Environmentally-Friendly Agriculture, Chonnam National University, Gwangju 500-757, South Korea.
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Ko SM, Vaidya B, Kwon J, Lee HM, Oh MJ, Shin TS, Cho SY, Kim D. Detection of hepatitis A virus in seeded oyster digestive tissue by ricin A-linked magnetic separation combined with reverse transcription PCR. J Food Prot 2015; 78:1046-51. [PMID: 25951406 DOI: 10.4315/0362-028x.jfp-14-540] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Outbreaks of hepatitis A virus (HAV) infections are most frequently associated with the consumption of contaminated oysters. A rapid and selective concentration method is necessary for the recovery of HAV from contaminated oysters prior to detection using PCR. In this study, ricin extracted from castor beans (Ricinus communis) was tested as an alternative to antibody used in immunomagnetic separation while concentrating HAV prior to its detection using reverse transcription PCR. Initially, the extracted proteins from castor beans were fractionated into 13 fractions by gel filtration chromatography. Pretreatment of different protein fractions showed a variation in binding of HAV viral protein (VP) 1 to oyster digestive tissue in the range of 25.9 to 63.9%. The protein fraction, which caused the highest reduction in binding of VP1 to the tissue, was identified as ricin A by quadrupole time-of-flight mass spectrometry. Ricin A could significantly inhibit binding of VP1 to the tissue with a 50% inhibitory concentration of 4.5 μg/ml and a maximal inhibitory concentration of 105.2%. The result showed that the rate of inhibition of HAV binding to tissue was higher compared to the rate of ricin itself binding to HAV (slope: 0.0029 versus 0.00059). However, ricin A concentration showed a higher correlation to the relative binding of ricin itself to HAV than the inhibition of binding of HAV to the tissue (coefficient of determination, R(2): 0.9739 versus 0.6804). In conclusion, ricin A-linked magnetic bead separation combined with reverse transcription PCR can successfully detect HAV in artificially seeded oyster digestive tissue up to a 10(-4) dilution of the virus stock (titer: 10(4) 50% tissue culture infective dose per ml).
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Affiliation(s)
- Sang-Mu Ko
- Department of Aqualife Medicine, Chonnam National University, Yeosu 550-749, Jeonnam, South Korea
| | - Bipin Vaidya
- Department of Food Science and Technology, Chonnam National University, Gwangju 500-757, South Korea
| | - Joseph Kwon
- Korea Basic Science Institute, Daejeon 305-806, South Korea
| | - Hee-Min Lee
- Department of Food Science and Technology, Chonnam National University, Gwangju 500-757, South Korea
| | - Myung-Joo Oh
- Department of Aqualife Medicine, Chonnam National University, Yeosu 550-749, Jeonnam, South Korea
| | - Tai-Sun Shin
- Department of Food Science and Nutrition, Chonnam National University, Gwangju 500-757, South Korea
| | - Se-Young Cho
- Department of Food Science and Technology, Chonnam National University, Gwangju 500-757, South Korea
| | - Duwoon Kim
- Department of Food Science and Technology, Agribio Disaster Research Center, Institute of Environmentally-Friendly Agriculture, Chonnam National University, Gwangju 500-757, South Korea.
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Proteomic Insights into Sulfur Metabolism in the Hydrogen-Producing Hyperthermophilic Archaeon Thermococcus onnurineus NA1. Int J Mol Sci 2015; 16:9167-95. [PMID: 25915030 PMCID: PMC4463584 DOI: 10.3390/ijms16059167] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 04/14/2015] [Indexed: 11/17/2022] Open
Abstract
The hyperthermophilic archaeon Thermococcus onnurineus NA1 has been shown to produce H₂ when using CO, formate, or starch as a growth substrate. This strain can also utilize elemental sulfur as a terminal electron acceptor for heterotrophic growth. To gain insight into sulfur metabolism, the proteome of T. onnurineus NA1 cells grown under sulfur culture conditions was quantified and compared with those grown under H₂-evolving substrate culture conditions. Using label-free nano-UPLC-MSE-based comparative proteomic analysis, approximately 38.4% of the total identified proteome (589 proteins) was found to be significantly up-regulated (≥1.5-fold) under sulfur culture conditions. Many of these proteins were functionally associated with carbon fixation, Fe-S cluster biogenesis, ATP synthesis, sulfur reduction, protein glycosylation, protein translocation, and formate oxidation. Based on the abundances of the identified proteins in this and other genomic studies, the pathways associated with reductive sulfur metabolism, H₂-metabolism, and oxidative stress defense were proposed. The results also revealed markedly lower expression levels of enzymes involved in the sulfur assimilation pathway, as well as cysteine desulfurase, under sulfur culture condition. The present results provide the first global atlas of proteome changes triggered by sulfur, and may facilitate an understanding of how hyperthermophilic archaea adapt to sulfur-rich, extreme environments.
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Ahn SH, Yang HY, Tran GB, Kwon J, Son KY, Kim S, Dinh QT, Jung S, Lee HM, Cho KO, Lee TH. Interaction of peroxiredoxin V with dihydrolipoamide branched chain transacylase E2 (DBT) in mouse kidney under hypoxia. Proteome Sci 2015; 13:4. [PMID: 25670924 PMCID: PMC4323032 DOI: 10.1186/s12953-014-0061-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Accepted: 12/23/2014] [Indexed: 11/28/2022] Open
Abstract
Background Peroxiredoxin V (Prdx V) plays a major role in preventing oxidative damage as an effective antioxidant protein within a variety of cells through peroxidase activity. However, the function of Prdx V is not limited to peroxidase enzymatic activity per se. It appears to have unique function in regulating cellular response to external stimuli by directing interaction with signaling protein. In this study, we identified Prdx V interacting partners in mouse kidney under hypoxic stress using immunoprecipitation and shotgun proteomic analysis (LC-MS/MS). Results Immunoprecipitation coupled with nano-UPLC-MSE shotgun proteomics was employed to identify putative interacting partners of Prdx V in mouse kidney in the setting of hypoxia. A total of 17 proteins were identified as potential interacting partners of Prdx V by a comparative interactomics analysis in kidney under normoxia versus hypoxia. Dihydrolipoamide branched chain transacylase E2 (DBT) appeared to be a prominent candidate protein displaying enhanced interaction with Prdx V under hypoxic stress. Moreover, hypoxic kidney exhibited altered DBT enzymatic activity compared to normoxia. An enhanced colocalization of these two proteins under hypoxic stress was successfully observed in vitro. Furthermore, peroxidatic cysteine residue (Cys48) of Prdx V is likely to be responsible for interacting with DBT. Conclusions We identified several proteins interacting with Prdx V under hypoxic condition known to induce renal oxidative stress. In hypoxic condition, we observed an enhanced interaction of Prdx V and DBT protein as well as increased DBT enzymatic activity. The results from this study will contribute to enhance our understanding of Prdx V’s role in hypoxic stress and may suggest new directions for future research. Electronic supplementary material The online version of this article (doi:10.1186/s12953-014-0061-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Sun Hee Ahn
- Department of Oral Biochemistry, Dental Science Research Institute, Medical Research Center for Biomineralization Disorders, School of Dentistry, Chonnam National University, 300 Yongbong-Dong, Buk-Ku, Gwangju, 500-757 Republic of Korea
| | - Hee-Young Yang
- Department of Oral Biochemistry, Dental Science Research Institute, Medical Research Center for Biomineralization Disorders, School of Dentistry, Chonnam National University, 300 Yongbong-Dong, Buk-Ku, Gwangju, 500-757 Republic of Korea
| | - Gia Buu Tran
- Department of Molecular Medicine, Graduate School, Chonnam National University, Gwangju, Republic of Korea
| | - Joseph Kwon
- Korea Basic Science Institute, Daejeon, Republic of Korea
| | - Kyu-Yeol Son
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Suhee Kim
- Department of Oral Biochemistry, Dental Science Research Institute, Medical Research Center for Biomineralization Disorders, School of Dentistry, Chonnam National University, 300 Yongbong-Dong, Buk-Ku, Gwangju, 500-757 Republic of Korea
| | - Quoc Thuong Dinh
- Department of Molecular Medicine, Graduate School, Chonnam National University, Gwangju, Republic of Korea
| | - Seunggon Jung
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Ha-Mi Lee
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Kyoung-Oh Cho
- Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Tae-Hoon Lee
- Department of Oral Biochemistry, Dental Science Research Institute, Medical Research Center for Biomineralization Disorders, School of Dentistry, Chonnam National University, 300 Yongbong-Dong, Buk-Ku, Gwangju, 500-757 Republic of Korea.,Department of Molecular Medicine, Graduate School, Chonnam National University, Gwangju, Republic of Korea
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9
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Cho SY, Kwon J, Vaidya B, Kim JO, Lee S, Jeong EH, Baik KS, Choi JS, Bae HJ, Oh MJ, Kim D. Modulation of proteome expression by F-type lectin during viral hemorrhagic septicemia virus infection in fathead minnow cells. FISH & SHELLFISH IMMUNOLOGY 2014; 39:464-474. [PMID: 24931624 DOI: 10.1016/j.fsi.2014.05.042] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 05/13/2014] [Accepted: 05/30/2014] [Indexed: 06/03/2023]
Abstract
Lectins found in fish tissues play an important role in the innate immune response against viral infection. A fucose-binding type lectin, RbFTL-3, from rock bream (Oplegnathus fasciatus) was identified using expressed sequence tag (EST) analysis. The expression of RbFTL-3 mRNA was higher in intestine than other tissues of rock bream. To determine the function of RbFTL-3, VHSV-susceptible fathead minnow (FHM) cells were transfected with pcDNA3.1(+) or pcDNA3.1(+)-RbFTL-3 and further infected with VHSV. The results show that the viability of FHM cells transfected with pcDNA3.1(+)-RbFTL-3 is higher than that of cells transfected with pcDNA3.1(+) (relative cell viability: 28.9% vs 56.2%). A comparative proteomic analysis, performed to explore the proteins related to the protective effect of RbFTL-3 in the cells during VHSV infection, identified 90 proteins differentially expressed in VHSV-infected FHM cells transfected with pcDNA3.1(+) or pcDNA3.1(+)-RbFTL-3. The expression of RbFTL-3 inhibits a vascular-sorting protein (SNF8) and diminishes the loss of prothrombin, which are closely associated with controlling viral budding and hemorrhage in fish cells, respectively. Subsequent Ingenuity Pathways Analysis enabled prediction of their biofunctional groupings and interaction networks. The results suggest RbFTL-3 modulates the expression of proteins related to viral budding (SNF8, CCT5 and TUBB) and thrombin signaling (F2) to increase the viability of VHSV infected cells.
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Affiliation(s)
- Se-Young Cho
- Department of Food Science and Technology and Functional Food Research Center, Chonnam National University, Gwangju 500-757, South Korea
| | - Joseph Kwon
- Korea Basic Science Institute, Daejeon 305-806, South Korea
| | - Bipin Vaidya
- Department of Food Science and Technology and Functional Food Research Center, Chonnam National University, Gwangju 500-757, South Korea
| | - Jong-Oh Kim
- Department of Aqualife Medicine, Chonnam National University, Yeosu 550-749, Jeonnam, South Korea
| | - Sunghoon Lee
- Personal Genomics Institute, Genome Research Foundation, Suwon 443-270, South Korea
| | - Eun-Hye Jeong
- Department of Food Science and Technology and Functional Food Research Center, Chonnam National University, Gwangju 500-757, South Korea
| | - Keun Sik Baik
- Korea Basic Science Institute, Daejeon 305-806, South Korea
| | - Jong-Soon Choi
- Korea Basic Science Institute, Daejeon 305-806, South Korea
| | - Hyeun-Jong Bae
- Department of Bioenergy Science and Technology, Chonnam National University, Gwangju 500-757, South Korea; Bioenergy Research Center, Chonnam National University, Gwangju 500-757, South Korea
| | - Myung-Joo Oh
- Department of Aqualife Medicine, Chonnam National University, Yeosu 550-749, Jeonnam, South Korea.
| | - Duwoon Kim
- Department of Food Science and Technology and Functional Food Research Center, Chonnam National University, Gwangju 500-757, South Korea; Bioenergy Research Center, Chonnam National University, Gwangju 500-757, South Korea.
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10
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Hanschmann EM, Godoy JR, Berndt C, Hudemann C, Lillig CH. Thioredoxins, glutaredoxins, and peroxiredoxins--molecular mechanisms and health significance: from cofactors to antioxidants to redox signaling. Antioxid Redox Signal 2013; 19:1539-605. [PMID: 23397885 PMCID: PMC3797455 DOI: 10.1089/ars.2012.4599] [Citation(s) in RCA: 489] [Impact Index Per Article: 44.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Revised: 02/01/2013] [Accepted: 02/07/2013] [Indexed: 12/19/2022]
Abstract
Thioredoxins (Trxs), glutaredoxins (Grxs), and peroxiredoxins (Prxs) have been characterized as electron donors, guards of the intracellular redox state, and "antioxidants". Today, these redox catalysts are increasingly recognized for their specific role in redox signaling. The number of publications published on the functions of these proteins continues to increase exponentially. The field is experiencing an exciting transformation, from looking at a general redox homeostasis and the pathological oxidative stress model to realizing redox changes as a part of localized, rapid, specific, and reversible redox-regulated signaling events. This review summarizes the almost 50 years of research on these proteins, focusing primarily on data from vertebrates and mammals. The role of Trx fold proteins in redox signaling is discussed by looking at reaction mechanisms, reversible oxidative post-translational modifications of proteins, and characterized interaction partners. On the basis of this analysis, the specific regulatory functions are exemplified for the cellular processes of apoptosis, proliferation, and iron metabolism. The importance of Trxs, Grxs, and Prxs for human health is addressed in the second part of this review, that is, their potential impact and functions in different cell types, tissues, and various pathological conditions.
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Affiliation(s)
- Eva-Maria Hanschmann
- Institute for Medical Biochemistry and Molecular Biology, University Medicine, Ernst-Moritz Arndt University, Greifswald, Germany
| | - José Rodrigo Godoy
- Institute of Physiology, Pathophysiology and Biophysics, Department of Biomedical Sciences, University of Veterinary Medicine, Vienna, Austria
| | - Carsten Berndt
- Department of Neurology, Medical Faculty, Heinrich-Heine University, Duesseldorf, Germany
| | - Christoph Hudemann
- Institute of Laboratory Medicine, Molecular Diagnostics, Philipps University, Marburg, Germany
| | - Christopher Horst Lillig
- Institute for Medical Biochemistry and Molecular Biology, University Medicine, Ernst-Moritz Arndt University, Greifswald, Germany
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11
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Yang HY, Kwon J, Kook MS, Kang SS, Kim SE, Sohn S, Jung S, Kwon SO, Kim HS, Lee JH, Lee TH. Proteomic analysis of gingival tissue and alveolar bone during alveolar bone healing. Mol Cell Proteomics 2013; 12:2674-88. [PMID: 23824910 DOI: 10.1074/mcp.m112.026740] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Bone tissue regeneration is orchestrated by the surrounding supporting tissues and involves the build-up of osteogenic cells, which orchestrate remodeling/healing through the expression of numerous mediators and signaling molecules. Periodontal regeneration models have proven useful for studying the interaction and communication between alveolar bone and supporting soft tissue. We applied a quantitative proteomic approach to analyze and compare proteins with altered expression in gingival soft tissue and alveolar bone following tooth extraction. For target identification and validation, hard and soft tissue were extracted from mini-pigs at the indicated times after tooth extraction. From triplicate experiments, 56 proteins in soft tissue and 27 proteins in alveolar bone were found to be differentially expressed before and after tooth extraction. The expression of 21 of those proteins was altered in both soft tissue and bone. Comparison of the activated networks in soft tissue and alveolar bone highlighted their distinct responsibilities in bone and tissue healing. Moreover, we found that there is crosstalk between identified proteins in soft tissue and alveolar bone with respect to cellular assembly, organization, and communication. Among these proteins, we examined in detail the expression patterns and associated networks of ATP5B and fibronectin 1. ATP5B is involved in nucleic acid metabolism, small molecule biochemistry, and neurological disease, and fibronectin 1 is involved in cellular assembly, organization, and maintenance. Collectively, our findings indicate that bone regeneration is accompanied by a profound interaction among networks regulating cellular resources, and they provide novel insight into the molecular mechanisms involved in the healing of periodontal tissue after tooth extraction.
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Affiliation(s)
- Hee-Young Yang
- Department of Oral Biochemistry, Dental Science Research Institute and the BK21 Project, Medical Research Center for Biomineralization Disorders, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
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12
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Cha IS, Kwon J, Park SB, Jang HB, Nho SW, Kim YK, Hikima JI, Aoki T, Jung TS. Heat shock protein profiles on the protein and gene expression levels in olive flounder kidney infected with Streptococcus parauberis. FISH & SHELLFISH IMMUNOLOGY 2013; 34:1455-1462. [PMID: 23542604 DOI: 10.1016/j.fsi.2013.03.355] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2012] [Revised: 03/08/2013] [Accepted: 03/11/2013] [Indexed: 06/02/2023]
Abstract
Heat shock proteins (HSPs) have been observed in cells exposed to a variety of stresses, including infectious pathogens. This study used a label-free, quantitative proteomic approach and transcriptional gene expression analysis to investigate infection-related HSP proteins and their encoding genes in whole kidneys from olive flounder (Paralichthys olivaceus). During Streptococcus parauberis infection in the flounder, the genes encoding Hsp10, Hsp40A4, Hsp40B6, Hsp40B11, Hsp60, Hsp70, glucose regulated protein 78 (Grp78), Hsp90α, Hsp90β and Grp94 were induced, and the protein levels of Hsp60, Hsp70, Hsp90α, Hsp90β and Grp94 were differentially regulated over time. Subsequent results also revealed that Hsp60, Hsp70, Hsp90α, Hsp90β and Grp94 appear to be the dominant and critical HSPs in olive flounder during bacterial infection. This is the first estimation of the differential involvement of HSPs in the immune response of olive flounder exposed to bacterial infection.
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Affiliation(s)
- In Seok Cha
- Research Institute of Life Science, Gyeongsang National University, Jinju, South Korea
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13
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Denoroy L, Zimmer L, Renaud B, Parrot S. Ultra high performance liquid chromatography as a tool for the discovery and the analysis of biomarkers of diseases: A review. J Chromatogr B Analyt Technol Biomed Life Sci 2013; 927:37-53. [DOI: 10.1016/j.jchromb.2012.12.005] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2012] [Revised: 12/06/2012] [Accepted: 12/07/2012] [Indexed: 12/25/2022]
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14
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Cha IS, Kwon J, Mun JY, Park SB, Jang HB, Nho SW, del Castillo CS, Hikima JI, Aoki T, Jung TS. Cathepsins in the kidney of olive flounder, Paralichthys olivaceus, and their responses to bacterial infection. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2012; 38:538-544. [PMID: 23000266 DOI: 10.1016/j.dci.2012.08.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Revised: 08/03/2012] [Accepted: 08/27/2012] [Indexed: 06/01/2023]
Abstract
Cathepsin activities are responsible for mediating various pathways involved in immune response, including the apoptosis pathway, toll-like receptor (TLR) signaling, cytokine induction and activation of granule serine proteases. In the present study, we investigated cathepsin responses in the kidneys of olive flounder infected with Streptococcus parauberis, analyzing cathepsin expression using a label-free, quantitative proteomic approach in conjunction with quantitative real-time polymerase chain reaction (qRT-PCR). In proteomic analyses, we detected cathepsin B, D, L and S proteins, noting significant decreases and increases in cathepsins B and L, respectively, with infection. Taken together with an evaluation of cathepsin B, D, F, K, L, S and X gene expression in normal and infected kidneys by qRT-PCR, our results indicate that cathepsins B, D, L and S are the dominant lysosomal proteases in the immune system of the teleostei, olive flounder. Cathepsins F, K and X were regarded as minor cathepsins.
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Affiliation(s)
- In Seok Cha
- Research Institute of Life Science, Gyeongsang National University, Jinju, South Korea
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15
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Cha IS, Kwon J, Park SH, Nho SW, Jang HB, Park SB, del Castillo CS, Hikima JI, Aoki T, Jung TS. Kidney proteome responses in the teleost fish Paralichthys olivaceus indicate a putative immune response against Streptococcus parauberis. J Proteomics 2012; 75:5166-75. [DOI: 10.1016/j.jprot.2012.05.046] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2012] [Revised: 05/25/2012] [Accepted: 05/31/2012] [Indexed: 11/16/2022]
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16
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Yang HY, Kwon J, Park HR, Kwon SO, Park YK, Kim HS, Chung YJ, Chang YJ, Choi HI, Chung KJ, Lee DS, Park BJ, Jeong SH, Lee TH. Comparative proteomic analysis for the insoluble fractions of colorectal cancer patients. J Proteomics 2012; 75:3639-53. [PMID: 22564821 DOI: 10.1016/j.jprot.2012.04.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2011] [Revised: 03/24/2012] [Accepted: 04/15/2012] [Indexed: 12/30/2022]
Abstract
We used label-free quantitative proteomics with the insoluble fractions from colorectal cancer (CRC) patients to gain further insight into the utility of profiling altered protein expression as a potential biomarker for cancer. The insoluble fractions were prepared from paired tumor/normal biopsies from 13 patients diagnosed with CRC (stages I to IV). Fifty-six proteins identified in data pooled from the 13 cases were differentially expressed between the tumor and adjacent normal tissue. The connections between these proteins are involved in reciprocal networks related to tumorigenesis, cancer incidence based on genetic disorder, and skeletal and muscular disorders. To assess their potential utility as biomarkers, the relative expression levels of the proteins were validated using personal proteomics and a heat map to compare five individual CRC samples with five normal tissue samples. Further validation of a panel of proteins (KRT5, JUP, TUBB, and COL6A1) using western blotting confirmed the differential expression. These proteins gave specific network information for CRC, and yielded a panel of novel markers and potential targets for treatment. It is anticipated that the experimental approach described here will increase our understanding of the membrane environment in CRC, which may provide direction for making diagnoses and prognoses through molecular biomarker targeting.
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Affiliation(s)
- Hee-Young Yang
- Department of Oral Biochemistry, Dental Science Research Institute and the BK21 Project, Medical Research Center for Biomineralization Disorders, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
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17
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Goemaere J, Knoops B. Peroxiredoxin distribution in the mouse brain with emphasis on neuronal populations affected in neurodegenerative disorders. J Comp Neurol 2012; 520:258-80. [PMID: 21674491 DOI: 10.1002/cne.22689] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Redox changes are observed in neurodegenerative diseases, ranging from increased levels of reactive oxygen/nitrogen species and disturbance of antioxidant systems, to nitro-oxidative damage. By reducing hydrogen peroxide, peroxynitrite, and organic hydroperoxides, peroxiredoxins (Prdxs) represent a major potential protective barrier against nitro-oxidative insults in the brain. While recent works have investigated the putative role of Prdxs in neurodegenerative disorders, less is known about their expression in the healthy brain. Here we used immunohistochemistry to map basal expression of Prdxs throughout C57BL/6 mouse brain. We first confirmed the neuronal localization of Prdx2-5 and the glial expression of Prdx1, Prdx4, and Prdx6. Then we performed an in-depth analysis of neuronal Prdx distribution in the brain. Our results show that Prdx2-5 are widely detected in the different neuronal populations, and especially well expressed in the olfactory bulb, in the cerebral cortex, in pons nuclei, in the red nucleus, in all cranial nerve nuclei, in the cerebellum, and in motor neurons of the spinal cord. In contrast, Prdx expression is very low in the dopaminergic neurons of substantia nigra pars compacta and in the CA1/2 pyramidal cells of hippocampus. This low basal expression may contribute to the vulnerability of these neurons to nitro-oxidative attacks occurring in Parkinson's disease and Alzheimer's disease. In addition, we found that Prdx expression levels are unevenly distributed among neurons of a determined region and that distinct regional patterns of expression are observed between isoforms, reinforcing the hypothesis of the nonredundant function of Prdxs.
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Affiliation(s)
- Julie Goemaere
- Laboratory of Cell Biology, Institut des Sciences de la Vie (ISV), Université Catholique de Louvain, 1348 Louvain-la-Neuve, Belgium
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18
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Won H, Lim S, Jang M, Kim Y, Rashid MA, Jyothi KR, Dashdorj A, Kang I, Ha J, Kim SS, Ha H. Peroxiredoxin-2 upregulated by NF-κB attenuates oxidative stress during the differentiation of muscle-derived C2C12 cells. Antioxid Redox Signal 2012; 16:245-61. [PMID: 21902453 DOI: 10.1089/ars.2011.3952] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
AIM Many studies have reported that the generation of reactive oxygen species (ROS) increases during the differentiation of muscle-derived C2C12 cells. Peroxiredoxin-2 (Prx-2) is an abundant mammalian enzyme that protects against oxidative stress. However, the role of Prx-2 in muscle differentiation has not been investigated. RESULTS In this study, we demonstrated that Prx-2 expression increases during muscle differentiation and regeneration in response to exogenous H(2)O(2). This increase occurs only in myoblast cell lines because no increase in Prx-2 expression was observed in the NIH3T3, MEF, Chang, or HEK293 cell lines. The antioxidants, N-acetyl L-cysteine (NAC) and 4,5-dihydroxy-1,3-benzenedisulfonic acid (Tiron), both suppressed myogenesis and Prx-2 expression. Moreover, Prx-2 was upregulated at the transcriptional level by NF-κB during the differentiation of muscle-derived C2C12 cells. We also found that inhibition of phosphatidylinositol 3-kinase (PI3K) blocks NF-κB activation and suppresses Prx-2 expression. Interestingly, Prx-2 knockdown increased the expression levels of other antioxidant enzymes, including all of the other Prx family member, thioredoxin-1 (Trx-1) and catalase, but also enhanced the accumulation of endogenous ROS during muscle differentiation. INNOVATION In this study, we demonstrated for the first time that Prx-2 is unregulated during the muscle differentiation and regeneration. CONCLUSION Prx-2 is upregulated via the PI3K/NF-κB pathway and attenuates oxidative stress during muscle differentiation and regeneration.
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Affiliation(s)
- Hyeran Won
- Department of Biochemistry and Molecular Biology (BK21 project), Medical Research Center for Bioreaction to Reactive Oxygen Species and Biomedical Science Institute, School of Medicine, Kyung Hee University, Seoul, Korea
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19
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Moon YJ, Kwon J, Yun SH, Lim HL, Kim MS, Kang SG, Lee JH, Choi JS, Kim SI, Chung YH. Proteome analyses of hydrogen-producing hyperthermophilic archaeon Thermococcus onnurineus NA1 in different one-carbon substrate culture conditions. Mol Cell Proteomics 2012; 11:M111.015420. [PMID: 22232491 DOI: 10.1074/mcp.m111.015420] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Thermococcus onnurineus NA1, a sulfur-reducing hyperthermophilic archaeon, is capable of H(2)-producing growth, considered to be hydrogenogenic carboxydotrophy. Utilization of formate as a sole energy source has been well studied in T. onnurineus NA1. However, whether formate can be used as its carbon source remains unknown. To obtain a global view of the metabolic characteristics of H(2)-producing growth, a quantitative proteome analysis of T. onnurineus NA1 grown on formate, CO, and starch was performed by combining one-dimensional SDS-PAGE with nano UPLC-MS(E). A total of 587 proteins corresponding to 29.7% of the encoding genes were identified, and the major metabolic pathways (especially energy metabolism) were characterized at the protein level. Expression of glycolytic enzymes was common but more highly induced in starch-grown cells. In contrast, enzymes involved in key steps of the gluconeogenesis and pentose phosphate pathways were strongly up-regulated in formate-grown cells, suggesting that formate could be utilized as a carbon source by T. onnurineus NA1. In accordance with the genomic analysis, comprehensive proteomic analysis also revealed a number of hydrogenase clusters apparently associated with formate metabolism. On the other hand, CODH and CO-induced hydrogenases belonging to the Hyg4-II cluster, as well as sulfhydrogenase-I and Mbx, were prominently expressed during CO culture. Our data suggest that CO can be utilized as a sole energy source for H(2) production via an electron transport mechanism and that CO(2) produced from catabolism or CO oxidation by CODH and CO-induced hydrogenases may subsequently be assimilated into the organic carbon. Overall, proteomic comparison of formate- and CO-grown cells with starch-grown cells revealed that a single carbon compound, such as formate and CO, can be utilized as an efficient substrate to provide cellular carbon and/or energy by T. onnurineus NA1.
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Affiliation(s)
- Yoon-Jung Moon
- Division of Life Science, Korea Basic Science Institute, Daejeon 305-806, Republic of Korea
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20
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Yang HY, Kwon J, Choi HI, Park SH, Yang U, Park HR, Ren L, Chung KJ, Kim YU, Park BJ, Jeong SH, Lee TH. In-depth analysis of cysteine oxidation by the RBC proteome: advantage of peroxiredoxin II knockout mice. Proteomics 2011; 12:101-12. [PMID: 22113967 DOI: 10.1002/pmic.201100275] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2011] [Revised: 10/22/2011] [Accepted: 10/25/2011] [Indexed: 02/02/2023]
Abstract
Peroxiredoxin II (Prdx II, a typical 2-Cys Prdx) has been originally isolated from erythrocytes, and its structure and peroxidase activity have been adequately studied. Mice lacking Prdx II proteins had heinz bodies in their peripheral blood, and morphologically abnormal cells were detected in the dense red blood cell (RBC) fractions, which contained markedly higher levels of reactive oxygen species (ROS). In this study, a labeling experiment with the thiol-modifying reagent biotinylated iodoacetamide (BIAM) in Prdx II-/- mice revealed that a variety of RBC proteins were highly oxidized. To identify oxidation-sensitive proteins in Prdx II-/- mice, we performed RBC comparative proteome analysis in membrane and cytosolic fractions by nano-UPLC-MSE shotgun proteomics. We found oxidation-sensitive 54 proteins from 61 peptides containing cysteine oxidation, and analyzed comparative expression pattern in healthy RBCs of Prdx II+/+ mice, healthy RBCs of Prdx II-/- mice, and abnormal RBCs of Prdx II-/- mice. These proteins belonged to cellular functions related with RBC lifespan maintain, such as cytoskeleton, stress-induced proteins, metabolic enzymes, signal transduction, and transporters. Furthermore, protein networks among identified oxidation-sensitive proteins were analyzed to associate with various diseases. Consequently, we expected that RBC proteome might provide clues to understand redox-imbalanced diseases.
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Affiliation(s)
- Hee-Young Yang
- Department of Oral Biochemistry, Dental Science Research Institute, The 2nd Stage of Brain Korea 21 for Dental School, Chonnam National University, Gwangju, Republic of Korea
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21
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Proteome studies on liver tissue in a phenobarbital-induced rat model. Eur J Pharmacol 2011; 670:333-40. [DOI: 10.1016/j.ejphar.2011.09.161] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2011] [Revised: 08/30/2011] [Accepted: 09/07/2011] [Indexed: 11/19/2022]
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Henke RM, Dastidar RG, Shah A, Cadinu D, Yao X, Hooda J, Zhang L. Hypoxia elicits broad and systematic changes in protein subcellular localization. Am J Physiol Cell Physiol 2011; 301:C913-28. [PMID: 21753182 DOI: 10.1152/ajpcell.00481.2010] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Oxygen provides a crucial energy source in eukaryotic cells. Hence, eukaryotes ranging from yeast to humans have developed sophisticated mechanisms to respond to changes in oxygen levels. Regulation of protein localization, like protein modifications, can be an effective mechanism to control protein function and activity. However, the contribution of protein localization in oxygen signaling has not been examined on a genomewide scale. Here, we examine how hypoxia affects protein distribution on a genomewide scale in the model eukaryote, the yeast Saccharomyces cerevisiae. We demonstrate, by live cell imaging, that hypoxia alters the cellular distribution of 203 proteins in yeast. These hypoxia-redistributed proteins include an array of proteins with important functions in various organelles. Many of them are nuclear and are components of key regulatory complexes, such as transcriptional regulatory and chromatin remodeling complexes. Under hypoxia, these proteins are synthesized and retained in the cytosol. Upon reoxygenation, they relocalize effectively to their normal cellular compartments, such as the nucleus, mitochondria, endoplasmic reticulum, and cell periphery. The resumption of the normal cellular locations of many proteins can occur even when protein synthesis is inhibited. Furthermore, we show that the changes in protein distribution induced by hypoxia follow a slower trajectory than those induced by reoxygenation. These results show that the regulation of protein localization is a common and potentially dominant mechanism underlying oxygen signaling and regulation. These results may have broad implications in understanding oxygen signaling and hypoxia responses in higher eukaryotes such as humans.
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Affiliation(s)
- Robert Michael Henke
- Department of Molecular and Cell Biology, Center for Systems Biology, University of Texas at Dallas, Richardson, 75080, USA
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