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Gu Q, An Y, Xu M, Huang X, Chen X, Li X, Shan H, Zhang M. Disulfidptosis, A Novel Cell Death Pathway: Molecular Landscape and Therapeutic Implications. Aging Dis 2024:AD.2024.0083. [PMID: 38739940 DOI: 10.14336/ad.2024.0083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 05/02/2024] [Indexed: 05/16/2024] Open
Abstract
Programmed cell death is pivotal for several physiological processes, including immune defense. Further, it has been implicated in the pathogenesis of developmental disorders and the onset of numerous diseases. Multiple modes of programmed cell death, including apoptosis, pyroptosis, necroptosis, and ferroptosis, have been identified, each with their own unique characteristics and biological implications. In February 2023, Liu Xiaoguang and his team discovered "disulfidptosis," a novel pathway of programmed cell death. Their findings demonstrated that disulfidptosis is triggered in glucose-starved cells exhibiting high expression of a protein called SLC7A11. Furthermore, disulfidptosis is marked by a drastic imbalance in the NADPH/NADP+ ratio and the abnormal accumulation of disulfides like cystine. These changes ultimately lead to the destabilization of the F-actin network, causing cell death. Given that high SLC7A11 expression is a key feature of certain cancers, these findings indicate that disulfidptosis could serve as the basis of innovative anti-cancer therapies. Hence, this review delves into the discovery of disulfidptosis, its underlying molecular mechanisms and metabolic regulation, and its prospective applications in disease treatment.
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Affiliation(s)
- Qiuyang Gu
- Institute of Forensic Sciences, Suzhou Medical College, Soochow University, Suzhou, China
| | - Yumei An
- Institute of Forensic Sciences, Suzhou Medical College, Soochow University, Suzhou, China
| | - Mingyuan Xu
- Institute of Forensic Sciences, Suzhou Medical College, Soochow University, Suzhou, China
| | - Xinqi Huang
- Institute of Forensic Sciences, Suzhou Medical College, Soochow University, Suzhou, China
| | - Xueshi Chen
- Institute of Forensic Sciences, Suzhou Medical College, Soochow University, Suzhou, China
| | - Xianzhe Li
- Institute of Forensic Sciences, Suzhou Medical College, Soochow University, Suzhou, China
| | - Haiyan Shan
- Department of Obstetrics and Gynecology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Mingyang Zhang
- Institute of Forensic Sciences, Suzhou Medical College, Soochow University, Suzhou, China
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2
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Mora-Zenil J, Morán J. ROS produced by NOX promote the neurite growth in a PI3K/Akt independent manner. J Neurosci Res 2024; 102:e25259. [PMID: 37840360 DOI: 10.1002/jnr.25259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 05/17/2023] [Accepted: 09/28/2023] [Indexed: 10/17/2023]
Abstract
Reactive oxygen species (ROS) function as signaling molecules in several physiologic and pathologic processes. In central nervous system, ROS are critical for differentiation, migration, polarization, and neurite growth. These actions are mediated by reversible oxidation of target proteins. On the other hand, PI3K/Akt signaling pathway is susceptible to be modulated by ROS and it has been implicated in neurite growth. In this study, we evaluated the participation of ROS in the neurite growth of cultured rat cerebellar granule neurons (CGN), as well as the possible regulation of the PI3K/Akt pathway by ROS during neurite outgrowth. For this purpose, CGN were treated with cellular or mitochondrial antioxidants, or an NOX inhibitor and neurite growth was evaluated. Moreover, to assess the participation Akt in this process, the p-Akt levels were measured in CGN treated with antioxidants or a NOX inhibitor. The effect of antioxidants on the neurite growth in the presence of a PI3K inhibitor was also measured. We found that cellular antioxidants and the NOX inhibitor decreased the neurite growth, but not the mitochondrial antioxidant. Interestingly, the antioxidants increased the p-Akt levels; however, the effect of antioxidants on neurite growth was no dependent on the Akt activity since the inhibitor of PI3K did not modify the antioxidant action on neurite growth. Our results show that the PI3K/Akt pathway participates in neurite growth and that ROS produced by NOX could function as signals in this process; however, this action is not mediated by a redox regulation of Akt activity.
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Affiliation(s)
- Janeth Mora-Zenil
- División de Neurociencias, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Julio Morán
- División de Neurociencias, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Mexico City, Mexico
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Mazepa E, Furlanetto ALDDM, Brum H, Nakao LS, Martinez PA, Cadena SMSC, Rocha MEM, Cunha ES, Martinez GR. Effects of redox modulation on quiescin/sulfhydryl oxidase activity of melanoma cells. Mol Cell Biochem 2024; 479:511-524. [PMID: 37103678 DOI: 10.1007/s11010-023-04745-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 04/14/2023] [Indexed: 04/28/2023]
Abstract
Secreted quiescin/sulfhydryl oxidase (QSOX) is overexpressed in many tumor cell lines, including melanoma, and is usually associated with a pro-invasive phenotype. Our previous work described that B16-F10 cells enter in a quiescent state as a protective mechanism against damage generated by reactive oxygen species (ROS) during melanogenesis stimulation. Our present results show that QSOX activity was two-fold higher in cells with stimulated melanogenesis when compared to control cells. Considering that glutathione (GSH) is one of the main factor responsible for controlling redox homeostasis in cells, this work also aimed to investigate the relationship between QSOX activity, GSH levels and melanogenesis stimulation in B16-F10 murine melanoma cell line. The redox homeostasis was impaired by treating cells with GSH in excess or depleting its intracellular levels through BSO treatment. Interestingly, GSH-depleted cells without stimulation of melanogenesis kept high levels of viability, suggesting a possible adaptive mechanism of survival even under low GSH levels. They also showed lower extracellular activity of QSOX, and higher QSOX intracellular immunostaining, suggesting that this enzyme was less excreted from cells and corroborating with a diminished extracellular QSOX activity. On the other hand, cells under melanogenesis stimulation showed a lower GSH/GSSG ratio (8:1) in comparison with control (non-stimulated) cells (20:1), indicating a pro-oxidative state after stimulation. This was accompanied by decreased cell viability after GSH-depletion, no alterations in QSOX extracellular activity, but higher QSOX nucleic immunostaining. We suggest that melanogenesis stimulation and redox impairment caused by GSH-depletion enhanced the oxidative stress in these cells, contributing to additional alterations of its metabolic adaptive response.
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Affiliation(s)
- Ester Mazepa
- Postgraduate Program in Sciences (Biochemistry), Department of Biochemistry and Molecular Biology, UFPR, Curitiba, PR, Brazil
| | | | - Hulyana Brum
- Postgraduate Program in Sciences (Biochemistry), Department of Biochemistry and Molecular Biology, UFPR, Curitiba, PR, Brazil
| | | | | | | | - Maria Eliane Merlin Rocha
- Postgraduate Program in Sciences (Biochemistry), Department of Biochemistry and Molecular Biology, UFPR, Curitiba, PR, Brazil
| | - Elizabeth Sousa Cunha
- Postgraduate Program in Sciences (Biochemistry), Department of Biochemistry and Molecular Biology, UFPR, Curitiba, PR, Brazil
| | - Glaucia Regina Martinez
- Postgraduate Program in Sciences (Biochemistry), Department of Biochemistry and Molecular Biology, UFPR, Curitiba, PR, Brazil.
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Pirković A, Jovanović Krivokuća M, Vilotić A, Nacka-Aleksić M, Bojić-Trbojević Ž, Dekanski D. Oleuropein Stimulates Migration of Human Trophoblast Cells and Expression of Invasion-Associated Markers. Int J Mol Sci 2023; 25:500. [PMID: 38203672 PMCID: PMC10779171 DOI: 10.3390/ijms25010500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 12/22/2023] [Accepted: 12/26/2023] [Indexed: 01/12/2024] Open
Abstract
Successful pregnancy establishment requires highly synchronized cross talk between the invasive trophoblast cells and the receptive maternal endometrium. Any disturbances in this tightly regulated process may lead to pregnancy complications. Local factors such as nutrients, hormones, cytokines and reactive oxygen species modulate the invasion of extravillous trophoblasts through critical signaling cascades. Epidemiological studies strongly indicate that a Mediterranean diet can significantly impact molecular pathways during placentation. Therefore, the aim of the current study was to examine whether oleuropein (OLE), one of the main compounds of the Mediterranean diet, may influence trophoblast cell adhesion and migration, as well as the expression of invasion-associated molecular markers and inflammatory pathways fostering these processes. HTR-8/SVneo cells were incubated with OLE at selected concentrations of 10 and 100 µM for 24 h. Results showed that OLE did not affect trophoblast cell viability, proliferation and adhesion after 24 h in in vitro treatment. The mRNA expression of integrin subunits α1, α5 and β1, as well as matrix-degrading enzymes MMP-2 and -9, was significantly increased after treatment with 10 µM OLE. Furthermore, OLE at a concentration of 10 µM significantly increased the protein expression of integrin subunits α1 and β1. Also, OLE inhibited the activation of JNK and reduced the protein expression of COX-2. Finally, a lower concentration of OLE 10 µM significantly stimulated migration of HTR-8/SVneo cells. In conclusion, the obtained results demonstrate the effects of OLE on the function of trophoblast cells by promoting cell migration and stimulating the expression of invasion markers. As suggested from results, these effects may be mediated via inhibition of the JNK signaling pathway.
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Affiliation(s)
| | | | | | | | | | - Dragana Dekanski
- Institute for the Application of Nuclear Energy, Department for Biology of Reproduction, University of Belgrade, Banatska 31b, 11080 Belgrade, Serbia; (A.P.); (M.J.K.); (A.V.); (M.N.-A.); (Ž.B.-T.)
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5
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Lin LW, Durbin-Johnson BP, Rocke DM, Salemi M, Phinney BS, Rice RH. Environmental pro-oxidants induce altered envelope protein profiles in human keratinocytes. Toxicol Sci 2023; 197:16-26. [PMID: 37788135 PMCID: PMC10734632 DOI: 10.1093/toxsci/kfad103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023] Open
Abstract
Cornified envelopes (CEs) of human epidermis ordinarily consist of transglutaminase-mediated cross-linked proteins and are essential for skin barrier function. However, in addition to enzyme-mediated isopeptide bonding, protein cross-linking could also arise from oxidative damage. Our group recently demonstrated abnormal incorporation of cellular proteins into CEs by pro-oxidants in woodsmoke. In this study, we focused on 2,3-dimethoxy-1,4-naphthoquinone (DMNQ), mesquite liquid smoke (MLS), and 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), to further understand the mechanisms through which environmental pro-oxidants induce CE formation and alter the CE proteome. CEs induced by the ionophore X537A were used for comparison. Similar to X537A, DMNQ- and MLS-induced CE formation was associated with membrane permeabilization. However, since DMNQ is non-adduct forming, its CEs were similar in protein profile to those from X537A. By contrast, MLS, rich in reactive carbonyls that can form protein adducts, caused a dramatic change in the CE proteome. TCDD-CEs were found to contain many CE precursors, such as small proline-rich proteins and late cornified envelope proteins, encoded by the epidermal differentiation complex. Since expression of these proteins is mediated by the aryl hydrocarbon receptor (AhR), and its well-known downstream protein, CYP1A1, was exclusively present in the TCDD group, we suggest that TCDD alters the CE proteome through persistent AhR activation. This study demonstrates the potential of environmental pro-oxidants to alter the epidermal CE proteome and indicates that the cellular redox state has an important role in CE formation.
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Affiliation(s)
- Lo-Wei Lin
- Department of Environmental Toxicology, University of California, Davis, California 95616, USA
| | - Blythe P Durbin-Johnson
- Division of Biostatistics, Department of Public Health Sciences, University of California, Davis, California 95616, USA
| | - David M Rocke
- Division of Biostatistics, Department of Public Health Sciences, University of California, Davis, California 95616, USA
| | - Michelle Salemi
- Proteomics Core Facility, University of California, Davis, California 95616, USA
| | - Brett S Phinney
- Proteomics Core Facility, University of California, Davis, California 95616, USA
| | - Robert H Rice
- Department of Environmental Toxicology, University of California, Davis, California 95616, USA
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6
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Ahmadi S, Lotay N, Thompson M. Affinity-based electrochemical biosensor with antifouling properties for detection of lysophosphatidic acid, a promising early-stage ovarian cancer biomarker. Bioelectrochemistry 2023; 153:108466. [PMID: 37244204 DOI: 10.1016/j.bioelechem.2023.108466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 05/09/2023] [Accepted: 05/12/2023] [Indexed: 05/29/2023]
Abstract
Electrochemical techniques are considered to be highly sensitive, capable of fast response and can be easily miniaturized, properties which can aid with regard to the fabrication of compact point-of-care medical devices; however, the main challenge in developing such a tool is overcoming a ubiquitous, problematic phenomenon known as non-specific adsorption (NSA). NSA is due to the fouling of non-target molecules in the blood on the recognition surface of the device. To overcome NSA, we have developed an affinity-based electrochemical biosensor using medical-grade stainless steel electrodes and following a unique and novel strategy using silane-based interfacial chemistry to detect lysophosphatidic acid (LPA), a highly promising biomarker, which was found to be elevated in 90 % of stage I OC patients and gradually increases as the disease progresses to later stages. The biorecognition surface was developed using the affinity-based gelsolin-actin system, which was previously investigated by our group to detect LPA using fluorescence spectroscopy. We demonstrate the capability of this label-free biosensor to detect LPA in goat serum with a detection limit of 0.7 µM as a proof-of-concept for the early diagnosis of ovarian cancer.
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Affiliation(s)
- Soha Ahmadi
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - Navina Lotay
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - Michael Thompson
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada.
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Puente-Cobacho B, Varela-López A, Quiles JL, Vera-Ramirez L. Involvement of redox signalling in tumour cell dormancy and metastasis. Cancer Metastasis Rev 2023; 42:49-85. [PMID: 36701089 PMCID: PMC10014738 DOI: 10.1007/s10555-022-10077-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 12/27/2022] [Indexed: 01/27/2023]
Abstract
Decades of research on oncogene-driven carcinogenesis and gene-expression regulatory networks only started to unveil the complexity of tumour cellular and molecular biology. This knowledge has been successfully implemented in the clinical practice to treat primary tumours. In contrast, much less progress has been made in the development of new therapies against metastasis, which are the main cause of cancer-related deaths. More recently, the role of epigenetic and microenviromental factors has been shown to play a key role in tumour progression. Free radicals are known to communicate the intracellular and extracellular compartments, acting as second messengers and exerting a decisive modulatory effect on tumour cell signalling. Depending on the cellular and molecular context, as well as the intracellular concentration of free radicals and the activation status of the antioxidant system of the cell, the signalling equilibrium can be tilted either towards tumour cell survival and progression or cell death. In this regard, recent advances in tumour cell biology and metastasis indicate that redox signalling is at the base of many cell-intrinsic and microenvironmental mechanisms that control disseminated tumour cell fate and metastasis. In this manuscript, we will review the current knowledge about redox signalling along the different phases of the metastatic cascade, including tumour cell dormancy, making emphasis on metabolism and the establishment of supportive microenvironmental connections, from a redox perspective.
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Affiliation(s)
- Beatriz Puente-Cobacho
- Department of Genomic Medicine, GENYO, Centre for Genomics and Oncology, Pfizer-University of Granada and Andalusian Regional Government, PTS, Granada, Spain
| | - Alfonso Varela-López
- Department of Physiology, Institute of Nutrition and Food Technology "José Mataix Verdú", Biomedical Research Center, University of Granada, Granada, Spain
| | - José L Quiles
- Department of Physiology, Institute of Nutrition and Food Technology "José Mataix Verdú", Biomedical Research Center, University of Granada, Granada, Spain
| | - Laura Vera-Ramirez
- Department of Genomic Medicine, GENYO, Centre for Genomics and Oncology, Pfizer-University of Granada and Andalusian Regional Government, PTS, Granada, Spain. .,Department of Physiology, Institute of Nutrition and Food Technology "José Mataix Verdú", Biomedical Research Center, University of Granada, Granada, Spain.
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8
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Meng Z, Li Z, Xie M, Yu H, Jiang L, Yao X. TM9SF4 is an F-actin disassembly factor that promotes tumor progression and metastasis. Nat Commun 2022; 13:5728. [PMID: 36175399 PMCID: PMC9522921 DOI: 10.1038/s41467-022-33276-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 09/09/2022] [Indexed: 11/29/2022] Open
Abstract
F-actin dynamics is crucial for many fundamental properties of cancer cells, from cell-substrate adhesion to migration, invasion and metastasis. However, the regulatory mechanisms of actin dynamics are still incompletely understood. In this study, we demonstrate the function of a protein named TM9SF4 in regulating actin dynamics and controlling cancer cell motility and metastasis. We show that an N-terminal fragment (NTF) cleaved from TM9SF4 can directly bind to F-actin to induce actin oxidation at Cys374, consequently enhancing cofilin-mediated F-actin disassembly. Knockdown of TM9SF4 reduces cell migration and invasion in ovarian cancer cells A2780, SKOV3 and several high grade serous ovarian cancer lines (HGSOCs). In vivo, knockdown of TM9SF4 completely abolishes the tumor growth and metastasis in athymic nude mice. These data provide mechanistic insights into TM9SF4-mediated regulation of actin dynamics in ovarian cancer cells. F-actin dynamics influence cancer cell motility. Here the authors show that TM9SF4 facilitates the cofilin-induced disassembly of F-actin to promote cancer cell migration and metastasis.
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Affiliation(s)
- Zhaoyue Meng
- School of Biomedical Sciences and Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Centre for Cell & Developmental Biology and State Key Laboratory of Agrobiotechnology, School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Zhichao Li
- School of Biomedical Sciences and Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Key Laboratory of Medical Reprogramming Technology, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Mingxu Xie
- School of Biomedical Sciences and Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Hongyan Yu
- School of Biomedical Sciences and Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Liwen Jiang
- Centre for Cell & Developmental Biology and State Key Laboratory of Agrobiotechnology, School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, China.
| | - Xiaoqiang Yao
- School of Biomedical Sciences and Li Ka Shing Institute of Health Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China. .,Centre for Cell & Developmental Biology and State Key Laboratory of Agrobiotechnology, School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, China.
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Rouyère C, Serrano T, Frémont S, Echard A. Oxidation and reduction of actin: Origin, impact in vitro and functional consequences in vivo. Eur J Cell Biol 2022; 101:151249. [PMID: 35716426 DOI: 10.1016/j.ejcb.2022.151249] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/13/2022] [Accepted: 06/06/2022] [Indexed: 11/15/2022] Open
Abstract
Actin is among the most abundant proteins in eukaryotic cells and assembles into dynamic filamentous networks regulated by many actin binding proteins. The actin cytoskeleton must be finely tuned, both in space and time, to fulfill key cellular functions such as cell division, cell shape changes, phagocytosis and cell migration. While actin oxidation by reactive oxygen species (ROS) at non-physiological levels are known for long to impact on actin polymerization and on the cellular actin cytoskeleton, growing evidence shows that direct and reversible oxidation/reduction of specific actin amino acids plays an important and physiological role in regulating the actin cytoskeleton. In this review, we describe which actin amino acid residues can be selectively oxidized and reduced in many different ways (e.g. disulfide bond formation, glutathionylation, carbonylation, nitration, nitrosylation and other oxidations), the cellular enzymes at the origin of these post-translational modifications, and the impact of actin redox modifications both in vitro and in vivo. We show that the regulated balance of oxidation and reduction of key actin amino acid residues contributes to the control of actin filament polymerization and disassembly at the subcellular scale and highlight how improper redox modifications of actin can lead to pathological conditions.
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Affiliation(s)
- Clémentine Rouyère
- Institut Pasteur, Université Paris Cité, CNRS UMR3691, Membrane Traffic and Cell Division Unit, 25-28 rue du Dr Roux, F-75015 Paris, France; Sorbonne Université, Collège Doctoral, F-75005 Paris, France
| | - Thomas Serrano
- Institut Pasteur, Université Paris Cité, CNRS UMR3691, Membrane Traffic and Cell Division Unit, 25-28 rue du Dr Roux, F-75015 Paris, France
| | - Stéphane Frémont
- Institut Pasteur, Université Paris Cité, CNRS UMR3691, Membrane Traffic and Cell Division Unit, 25-28 rue du Dr Roux, F-75015 Paris, France
| | - Arnaud Echard
- Institut Pasteur, Université Paris Cité, CNRS UMR3691, Membrane Traffic and Cell Division Unit, 25-28 rue du Dr Roux, F-75015 Paris, France.
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Cerqueira A, García-Arnáez I, Romero-Gavilán F, Azkargorta M, Elortza F, Martín de Llanos JJ, Carda C, Gurruchaga M, Goñi I, Suay J. Complex effects of Mg-biomaterials on the osteoblast cell machinery: A proteomic study. BIOMATERIALS ADVANCES 2022; 137:212826. [PMID: 35929259 DOI: 10.1016/j.bioadv.2022.212826] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 04/08/2022] [Accepted: 04/20/2022] [Indexed: 12/16/2022]
Abstract
The cell-biomaterial interface is highly complex; thousands of molecules and many processes participate in its formation. Growing demand for improved biomaterials has highlighted the need to understand the structure and functions of this interface. Proteomic methods offer a viable alternative to the traditional in vitro techniques for analyzing such systems. Magnesium is a promoter of cell adhesion and osteogenesis. Here, we used the LC-MS/MS to compare the protein expression profiles of human osteoblasts (HOb) exposed to sol-gel coatings without (MT) and with Mg (MT1.5Mg) for 1, 3, and 7 days. PANTHER, DAVID, and IPA databases were employed for protein identification and data analysis. Confocal microscopy and gene expression analysis were used for further characterization. Exposure to MT1.5Mg increased the HOb cell area and the expression of SP7, RUNX2, IBP3, COL3A1, MXRA8, and FBN1 genes. Proteomic analysis showed that MT1.5Mg affected the early osteoblast maturation (PI3/AKT, mTOR, ERK/MAPK), insulin metabolism, cell adhesion (integrin, FAK, actin cytoskeleton regulation) and oxidative stress pathways. Thus, the effects of Mg on cell adhesion and osteogenesis are rather complex, affecting several pathways rather than single processes. Our analysis also confirms the potential of proteomics in biomaterial characterization, showing a good correlation with in vitro results.
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Affiliation(s)
- Andreia Cerqueira
- Department of Industrial Systems Engineering and Design, Universitat Jaume I, Av. Vicent Sos Baynat s/n, 12071 Castellón de la Plana, Spain
| | - Iñaki García-Arnáez
- Department of Science and Technology of Polymers, University of the Basque Country, P. M. de Lardizábal, 3, 20018 San Sebastián, Spain
| | - Francisco Romero-Gavilán
- Department of Industrial Systems Engineering and Design, Universitat Jaume I, Av. Vicent Sos Baynat s/n, 12071 Castellón de la Plana, Spain.
| | - Mikel Azkargorta
- Proteomics Platform, CIC bioGUNE, Basque Research and Technology Alliance (BRTA), CIBERehd, ProteoRed-ISCIII, Bizkaia Science and Technology Park, 48160 Derio, Spain
| | - Félix Elortza
- Proteomics Platform, CIC bioGUNE, Basque Research and Technology Alliance (BRTA), CIBERehd, ProteoRed-ISCIII, Bizkaia Science and Technology Park, 48160 Derio, Spain
| | - José Javier Martín de Llanos
- Department of Pathology Medicine and Odontology, Medicine Faculty, University of Valencia, Av Blasco Ibáñez, 13, 46010, Valencia, Spain; Research Institute of the University Clinical Hospital of Valencia (INCLIVA), C. de Menéndez y Pelayo, 4, 46010, Valencia, Spain
| | - Carmen Carda
- Department of Pathology Medicine and Odontology, Medicine Faculty, University of Valencia, Av Blasco Ibáñez, 13, 46010, Valencia, Spain; Research Institute of the University Clinical Hospital of Valencia (INCLIVA), C. de Menéndez y Pelayo, 4, 46010, Valencia, Spain
| | - Mariló Gurruchaga
- Department of Science and Technology of Polymers, University of the Basque Country, P. M. de Lardizábal, 3, 20018 San Sebastián, Spain
| | - Isabel Goñi
- Department of Science and Technology of Polymers, University of the Basque Country, P. M. de Lardizábal, 3, 20018 San Sebastián, Spain
| | - Julio Suay
- Department of Industrial Systems Engineering and Design, Universitat Jaume I, Av. Vicent Sos Baynat s/n, 12071 Castellón de la Plana, Spain
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11
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The Oxidative Balance Orchestrates the Main Keystones of the Functional Activity of Cardiomyocytes. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:7714542. [PMID: 35047109 PMCID: PMC8763515 DOI: 10.1155/2022/7714542] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 11/03/2021] [Accepted: 12/15/2021] [Indexed: 12/11/2022]
Abstract
This review is aimed at providing an overview of the key hallmarks of cardiomyocytes in physiological and pathological conditions. The main feature of cardiac tissue is the force generation through contraction. This process requires a conspicuous energy demand and therefore an active metabolism. The cardiac tissue is rich of mitochondria, the powerhouses in cells. These organelles, producing ATP, are also the main sources of ROS whose altered handling can cause their accumulation and therefore triggers detrimental effects on mitochondria themselves and other cell components thus leading to apoptosis and cardiac diseases. This review highlights the metabolic aspects of cardiomyocytes and wanders through the main systems of these cells: (a) the unique structural organization (such as different protein complexes represented by contractile, regulatory, and structural proteins); (b) the homeostasis of intracellular Ca2+ that represents a crucial ion for cardiac functions and E-C coupling; and (c) the balance of Zn2+, an ion with a crucial impact on the cardiovascular system. Although each system seems to be independent and finely controlled, the contractile proteins, intracellular Ca2+ homeostasis, and intracellular Zn2+ signals are strongly linked to each other by the intracellular ROS management in a fascinating way to form a "functional tetrad" which ensures the proper functioning of the myocardium. Nevertheless, if ROS balance is not properly handled, one or more of these components could be altered resulting in deleterious effects leading to an unbalance of this "tetrad" and promoting cardiovascular diseases. In conclusion, this "functional tetrad" is proposed as a complex network that communicates continuously in the cardiomyocytes and can drive the switch from physiological to pathological conditions in the heart.
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Santos Marques L, Rodrigues de Freitas T, Batista Rodrigues R, Dos Santos Teixeira N, Pérez-Atehortúa M, Rosa-Silva HT, Fonseca Moreira JC, Streit DP. Vitrification protocol for immature Brycon orbignyanus ovarian tissue as an extinction escape strategy. Cryobiology 2021; 103:116-122. [PMID: 34464611 DOI: 10.1016/j.cryobiol.2021.08.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 08/23/2021] [Accepted: 08/26/2021] [Indexed: 11/18/2022]
Abstract
Piracanjunba (Brycon orbignyanus) is an endangered South American fish, and ovarian tissue cryopreservation is an alternative method for preserving maternal germplasm and genetic diversity. Therefore, our aim was to test a vitrification protocol for ovarian tissue containing primary growth (PG) oocytes of B. orbignyanus as a strategy to avoid the threat of extinction. Two vitrification solutions were evaluated (VS1: 1.5 M methanol + 4.5 M propylene glycol and VS2: 1.5 M methanol + 5.5 M Me2SO) and compared using control/fresh ovarian tissue. After vitrification, the following factors were analyzed: membrane integrity using trypan blue, morphology using a histological assessment, oxidative stress (total reactive antioxidant potential (TRAP) and reduced thiol [-SH]), mitochondrial activity using MTT, and DNA damage using a comet assay. The vitrified oocytes (VS1= 24.3 ± 0.49% and VS2= 24.8 ± 0.69%) showed higher DNA damage than the control group (control= 20.7 ± 1.03%) (P = 0.004). In contrast, in most evaluations (membrane integrity, membrane damage, oxidative stress, and mitochondrial activity), there were no discernible differences between the control group and the vitrified samples. In addition, oocyte (P = 0.883) and nuclear diameter (P = 0.118) did not change after vitrification. VS2 treatment resulted in higher nuclear damage (15.7 ± 1.45%) than in the control treatment (3.5 ± 1.19%); however, VS1 treatment did not result in significantly more damage (9.5 ± 3.01%) than in the control (P = 0.015). Therefore, the protocol for ovarian tissue vitrification tested in this study resulted in high maintenance of PG oocyte cell integrity, making it a promising alternative for B. orbignyanus maternal genome preservation.
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Affiliation(s)
- Lis Santos Marques
- Animal Science Research Program of Federal University of Rio Grande Do Sul, Bento Gonçalves, 7712, 91540-000, Porto Alegre, RS, Brazil
| | - Thaiza Rodrigues de Freitas
- Animal Science Research Program of Federal University of Rio Grande Do Sul, Bento Gonçalves, 7712, 91540-000, Porto Alegre, RS, Brazil
| | - Rômulo Batista Rodrigues
- Animal Science Research Program of Federal University of Rio Grande Do Sul, Bento Gonçalves, 7712, 91540-000, Porto Alegre, RS, Brazil
| | - Nathalia Dos Santos Teixeira
- Animal Science Research Program of Federal University of Rio Grande Do Sul, Bento Gonçalves, 7712, 91540-000, Porto Alegre, RS, Brazil
| | - Maritza Pérez-Atehortúa
- Animal Science Research Program of Federal University of Rio Grande Do Sul, Bento Gonçalves, 7712, 91540-000, Porto Alegre, RS, Brazil
| | - H T Rosa-Silva
- Postgraduate Program in Biological Sciences: Biochemistry, Department of Biochemistry of Federal University of Rio Grande Do Sul, Ramiro Barcelos, 2600, 90035-003, Porto Alegre, RS, Brazil
| | - José Cláudio Fonseca Moreira
- Postgraduate Program in Biological Sciences: Biochemistry, Department of Biochemistry of Federal University of Rio Grande Do Sul, Ramiro Barcelos, 2600, 90035-003, Porto Alegre, RS, Brazil
| | - Danilo Pedro Streit
- Animal Science Research Program of Federal University of Rio Grande Do Sul, Bento Gonçalves, 7712, 91540-000, Porto Alegre, RS, Brazil.
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13
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MacTaggart B, Kashina A. Posttranslational modifications of the cytoskeleton. Cytoskeleton (Hoboken) 2021; 78:142-173. [PMID: 34152688 DOI: 10.1002/cm.21679] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 06/13/2021] [Accepted: 06/16/2021] [Indexed: 12/12/2022]
Abstract
The cytoskeleton plays important roles in many essential processes at the cellular and organismal levels, including cell migration and motility, cell division, and the establishment and maintenance of cell and tissue architecture. In order to facilitate these varied functions, the main cytoskeletal components-microtubules, actin filaments, and intermediate filaments-must form highly diverse intracellular arrays in different subcellular areas and cell types. The question of how this diversity is conferred has been the focus of research for decades. One key mechanism is the addition of posttranslational modifications (PTMs) to the major cytoskeletal proteins. This posttranslational addition of various chemical groups dramatically increases the complexity of the cytoskeletal proteome and helps facilitate major global and local cytoskeletal functions. Cytoskeletal proteins undergo many PTMs, most of which are not well understood. Recent technological advances in proteomics and cell biology have allowed for the in-depth study of individual PTMs and their functions in the cytoskeleton. Here, we provide an overview of the major PTMs that occur on the main structural components of the three cytoskeletal systems-tubulin, actin, and intermediate filament proteins-and highlight the cellular function of these modifications.
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Affiliation(s)
- Brittany MacTaggart
- School of Veterinary Medicine, Department of Biomedical Sciences, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Anna Kashina
- School of Veterinary Medicine, Department of Biomedical Sciences, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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14
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Mushtaq U, Bashir M, Nabi S, Khanday FA. Epidermal growth factor receptor and integrins meet redox signaling through P66shc and Rac1. Cytokine 2021; 146:155625. [PMID: 34157521 DOI: 10.1016/j.cyto.2021.155625] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 05/23/2021] [Accepted: 06/08/2021] [Indexed: 12/24/2022]
Abstract
This review examines the concerted role of Epidermal Growth Factor Receptor (EGFR) and integrins in regulating Reactive oxygen species (ROS) production through different signaling pathways. ROS as such are not always deleterious to the cells but they also act as signaling molecules, that regulates numerous indespensible physiological fuctions of life. Many adaptor proteins, particularly Shc and Grb2, are involved in mediating the downstream signaling pathways stimulated by EGFR and integrins. Integrin-induced activation of EGFR and subsequent tyrosine phosphorylation of a class of acceptor sites on EGFR leads to alignment and tyrosine phosphorylation of Shc, PLCγ, the p85 subunit of PI-3 K, and Cbl, followed by activation of the downstream targets Erk and Akt/PKB. Functional interactions between these receptors result in the activation of Rac1 via these adaptor proteins, thereby leading to Reactive Oxygen Species. Both GF and integrin activation can produce oxidants independently, however synergistically there is increased ROS generation, suggesting a mutual cooperation between integrins and GFRs for redox signalling. The ROS produced further promotes feed-forward stimulation of redox signaling events such as MAPK activation and gene expression. This relationship has not been reviewed previously. The literature presented here can have multiple implications, ranging from looking at synergistic effects of integrin and EGFR mediated signaling mechanisms of different proteins to possible therapeutic interventions operated by these two receptors. Furthermore, such mutual redox regulation of crosstalk between EGFR and integrins not only add to the established models of pathological oxidative stress, but also can impart new avenues and opportunities for targeted antioxidant based therapeutics.
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Affiliation(s)
- Umar Mushtaq
- Department of Biotechnology, University of Kashmir, Srinagar, JK 190006, India; Department of Biotechnology, Central University of Kashmir, Ganderbal, JK 191201, India
| | - Muneesa Bashir
- Department of Biotechnology, University of Kashmir, Srinagar, JK 190006, India; Department of Higher Education, Government of Jammu & Kashmir, 190001, India
| | - Sumaiya Nabi
- Department of Biochemistry, University of Kashmir, Srinagar, JK 190006, India
| | - Firdous A Khanday
- Department of Biotechnology, University of Kashmir, Srinagar, JK 190006, India.
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15
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Prescher N, Hänsch S, Knobbe-Thomsen CB, Stühler K, Poschmann G. The migration behavior of human glioblastoma cells is influenced by the redox-sensitive human macrophage capping protein CAPG. Free Radic Biol Med 2021; 167:81-93. [PMID: 33711419 DOI: 10.1016/j.freeradbiomed.2021.02.038] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 02/24/2021] [Accepted: 02/26/2021] [Indexed: 12/26/2022]
Abstract
The macrophage capping protein CAPG belongs to the gelsolin superfamily which modulates actin dynamics by capping the growing end of actin filaments in a Ca2+- and PIP2-dependent manner resulting in polymerization inhibition of actin filaments. In the last years, additional functions for CAPG in transcription regulation were described and higher CAPG amounts have been linked to increased invasiveness and migration behavior in different human tumor entities like e.g. glioblastoma. Nevertheless, there is a lack of knowledge how additional functions of CAPG are regulated. As CAPG contains several cysteine residues which may be accessible to oxidation we were especially interested to investigate how alterations in the cysteine oxidation state may influence the function, localization, and regulation of CAPG. In the present study, we provide strong evidence that CAPG is a redox-sensitive protein and identified two cysteines: C282 and C290 as reversibly oxidized in glioblastoma cell lines. Whereas no evidence could be found that the canonical actin capping function of CAPG is redox-regulated, our results point to a novel role of the identified cysteines in the regulation of cell migration. Along with this, we found a localization shift out of the nucleus of CAPG and RAVER1, a potential interaction partner identified in our study which might explain the observed altered cell migration properties. The newly identified redox sensitive cysteines of CAPG could perspectively be considered as new targets for controlling tumor invasive properties.
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Affiliation(s)
- Nina Prescher
- Institute of Molecular Medicine, Proteome Research, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Sebastian Hänsch
- Department of Biology, Center for Advanced Imaging (CAi), Heinrich-Heine University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Christiane B Knobbe-Thomsen
- Department of Neuropathology, Heinrich-Heine University Düsseldorf and University Hospital, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Kai Stühler
- Institute of Molecular Medicine, Proteome Research, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany; Molecular Proteomics Laboratory, Biomedical Research Centre (BMFZ), Heinrich-Heine University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Gereon Poschmann
- Institute of Molecular Medicine, Proteome Research, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany.
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16
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Balta E, Kramer J, Samstag Y. Redox Regulation of the Actin Cytoskeleton in Cell Migration and Adhesion: On the Way to a Spatiotemporal View. Front Cell Dev Biol 2021; 8:618261. [PMID: 33585453 PMCID: PMC7875868 DOI: 10.3389/fcell.2020.618261] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 12/21/2020] [Indexed: 12/12/2022] Open
Abstract
The actin cytoskeleton of eukaryotic cells is a dynamic, fibrous network that is regulated by the concerted action of actin-binding proteins (ABPs). In particular, rapid polarization of cells in response to internal and external stimuli is fundamental to cell migration and invasion. Various isoforms of ABPs in different tissues equip cells with variable degrees of migratory and adhesive capacities. In addition, regulation of ABPs by posttranslational modifications (PTM) is pivotal to the rapid responsiveness of cells. In this context, phosphorylation of ABPs and its functional consequences have been studied extensively. However, the study of reduction/oxidation (redox) modifications of oxidation-sensitive cysteine and methionine residues of actin, ABPs, adhesion molecules, and signaling proteins regulating actin cytoskeletal dynamics has only recently emerged as a field. The relevance of such protein oxidations to cellular physiology and pathophysiology has remained largely elusive. Importantly, studying protein oxidation spatiotemporally can provide novel insights into localized redox regulation of cellular functions. In this review, we focus on the redox regulation of the actin cytoskeleton, its challenges, and recently developed tools to study its physiological and pathophysiological consequences.
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Affiliation(s)
- Emre Balta
- Section Molecular Immunology, Institute of Immunology, Heidelberg University, Heidelberg, Germany
| | - Johanna Kramer
- Section Molecular Immunology, Institute of Immunology, Heidelberg University, Heidelberg, Germany
| | - Yvonne Samstag
- Section Molecular Immunology, Institute of Immunology, Heidelberg University, Heidelberg, Germany
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17
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Galigniana NM, Charó NL, Uranga R, Cabanillas AM, Piwien-Pilipuk G. Oxidative stress induces transcription of telomeric repeat-containing RNA (TERRA) by engaging PKA signaling and cytoskeleton dynamics. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2020; 1867:118643. [DOI: 10.1016/j.bbamcr.2020.118643] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 12/27/2019] [Accepted: 01/02/2020] [Indexed: 12/11/2022]
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18
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Kruger TM, Bell KJ, Lansakara TI, Tivanski AV, Doorn JA, Stevens LL. A Soft Mechanical Phenotype of SH-SY5Y Neuroblastoma and Primary Human Neurons Is Resilient to Oligomeric Aβ(1-42) Injury. ACS Chem Neurosci 2020; 11:840-850. [PMID: 32058688 DOI: 10.1021/acschemneuro.9b00401] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Aggregated amyloid beta (Aβ) is widely reported to cause neuronal dystrophy and toxicity through multiple pathways: oxidative stress, disrupting calcium homeostasis, and cytoskeletal dysregulation. The neuro-cytoskeleton is a dynamic structure that reorganizes to maintain cell homeostasis in response to varying soluble and physical cues presented from the extracellular matrix (ECM). Due this relationship between cell health and the ECM, we hypothesize that amyloid toxicity may be directly influenced by physical changes to the ECM (stiffness and dimensionality) through mechanosensitive pathways, and while previous studies demonstrated that Aβ can distort focal adhesion signaling with pathological consequences, these studies do not address the physical contribution from a physiologically relevant matrix. To test our hypothesis that physical cues can adjust Aβ toxicity, SH-SY5Y human neuroblastoma and primary human cortical neurons were plated on soft and stiff, 2D polyacrylamide matrices or suspended in 3D collagen gels. Each cell culture was exposed to escalating concentrations of oligomeric or fibrillated Aβ(1-42) with MTS viability and lactate dehydrogenase toxicity assessed. Actin restructuring was further monitored in live cells by atomic force microscopy nanoindentation, and our results demonstrate that increasing either matrix stiffness or exposure to oligomeric Aβ promotes F-actin polymerization and cell stiffening, while mature Aβ fibrils yielded no apparent cell stiffening and minor toxicity. Moreover, the rounded, softer mechanical phenotype displayed by cells plated onto a compliant matrix also demonstrated a resilience to oligomeric Aβ as noted by a significant recovery of viability when compared to same-dosed cells plated on traditional tissue culture plastic. This recovery was reproduced pharmacologically through inhibiting actin polymerization with cytochalasin D prior to Aβ exposure. These studies indicate that the cell-ECM interface can modify amyloid toxicity in neurons and the matrix-mediated pathways that promote this protection may offer unique targets in amyloid pathologies like Alzheimer's disease.
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Affiliation(s)
- Terra M. Kruger
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, The University of Iowa, Iowa City, Iowa 52242, United States
| | - Kendra J. Bell
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, The University of Iowa, Iowa City, Iowa 52242, United States
| | | | - Alexei V. Tivanski
- Department of Chemistry, The University of Iowa, Iowa City, Iowa 52242, United States
| | - Jonathan A. Doorn
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, The University of Iowa, Iowa City, Iowa 52242, United States
| | - Lewis L. Stevens
- Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, The University of Iowa, Iowa City, Iowa 52242, United States
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19
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Vikramdeo KS, Saha P, Dutta S, Kumar N, Roy Chowdhury A, Kumar S, Tyagi RK, Ghosh I, Datta K. Hyaluronan-binding protein 1 (HABP1) overexpression triggers induction of senescence in fibroblasts cells. Cell Biol Int 2020; 44:1312-1330. [PMID: 32068317 DOI: 10.1002/cbin.11326] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 02/16/2020] [Indexed: 01/01/2023]
Abstract
Hyaluronan-binding protein 1 (HABP1), a multi-compartmental, multi-functional protein has a wide range of functions, which can be attributed to its ability to associate with a variety of cellular ligands. Earlier we have reported that HABP1 overexpression in rat normal fibroblasts (F-HABP07) shows chronic generation of reactive oxygen species (ROS), induction of autophagy, and apoptosis. However, a significant proportion of cells remained viable after the majority went through apoptosis from 60 to 72 h. In this study, an attempt has been made to delineate the cellular events in the declined population of surviving cells. It has been elucidated here that, these cells at later time points of growth, that is, 72 and 84 h, not only appeared to shrink but also are devoid of autophagic vacuoles and displayed polyploidy. F-HABP07 cells exhibited an altered cytoskeletal structure from their parental cell line F111, assumed to be caused upon inhibition of actin polymerization and decrease in IQ motif-containing GTPase activating protein 1 (IQGAP1), a key protein associated with maintenance of cytoskeletal integrity. Enhanced expression and nuclear localization of AKT observed in F-HABP07 cells appears to be contributing toward the maintenance of high ROS levels in these cells and also potentially modulating the IQGAP1 activity. These observations, in fact have been considered to result in sustained DNA damage, which then leads to increased expression of p53 and activation of p21 and carry out the cellular events responsible for senescence. Subsequent assessment of the presence of positive β-gal staining and enhanced expression of p16INK4a in F-HABP07, confirmed that HABP1 overexpressing fibroblasts undergo senescence.
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Affiliation(s)
- Kunwar Somesh Vikramdeo
- Biochemistry and Toxicology Laboratory, School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Paramita Saha
- Biochemistry and Toxicology Laboratory, School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, 110067, India.,Molecular Endocrinology Laboratory, Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Shubhra Dutta
- Biochemistry and Toxicology Laboratory, School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Naveen Kumar
- Biochemistry and Toxicology Laboratory, School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Anindya Roy Chowdhury
- Biochemistry and Toxicology Laboratory, School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Sudhir Kumar
- Molecular Endocrinology Laboratory, Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Rakesh Kumar Tyagi
- Molecular Endocrinology Laboratory, Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Ilora Ghosh
- Biochemistry and Toxicology Laboratory, School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Kasturi Datta
- Biochemistry and Toxicology Laboratory, School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
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20
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Abstract
Redox proteomics is a field of proteomics that is concerned with the characterization of the oxidation state of proteins to gain information about their modulated structure, function, activity, and involvement in different physiological pathways. Oxidative modifications of proteins have been shown to be implicated in normal physiological processes of cells as well as in pathomechanisms leading to the development of cancer, diabetes, neurodegenerative diseases, and some rare hereditary metabolic diseases, like classic galactosemia. Reactive oxygen species generate a variety of reversible and irreversible modifications in amino acid residue side chains and within the protein backbone. These oxidative post-translational modifications (Ox-PTMs) can participate in the activation of signal transduction pathways and mediate the toxicity of harmful oxidants. Thus the application of advanced redox proteomics technologies is important for gaining insights into molecular mechanisms of diseases. Mass-spectrometry-based proteomics is one of the most powerful methods that can be used to give detailed qualitative and quantitative information on protein modifications and allows us to characterize redox proteomes associated with diseases. This Review illustrates the role and biological consequences of Ox-PTMs under basal and oxidative stress conditions by focusing on protein carbonylation and S-glutathionylation, two abundant modifications with an impact on cellular pathways that have been intensively studied during the past decade.
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Affiliation(s)
- Atef Mannaa
- Borg AlArab Higher Institute of Engineering and Technology , New Borg AlArab City , Alexandria , Egypt
| | - Franz-Georg Hanisch
- Institute of Biochemistry II, Medical Faculty , University of Cologne , Joseph-Stelzmann-Str. 52 , 50931 Cologne , Germany
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21
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Pan S, Shah SD, Panettieri RA, Deshpande DA. Bnip3 regulates airway smooth muscle cell focal adhesion and proliferation. Am J Physiol Lung Cell Mol Physiol 2019; 317:L758-L767. [PMID: 31509440 DOI: 10.1152/ajplung.00224.2019] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Increased airway smooth muscle (ASM) mass is a key contributor to airway narrowing and airway hyperresponsiveness in asthma. Besides conventional pathways and regulators of ASM proliferation, recent studies suggest that changes in mitochondrial morphology and function play a role in airway remodeling in asthma. In this study, we aimed at determining the role of mitochondrial Bcl-2 adenovirus E1B 19 kDa-interacting protein, Bnip3, in the regulation of ASM proliferation. Bnip3 is a member of the Bcl-2 family of proteins critical for mitochondrial health, mitophagy, and cell survival/death. We found that Bnip3 expression is upregulated in ASM cells from asthmatic donors compared with that in ASM cells from healthy donors and transient downregulation of Bnip3 expression in primary human ASM cells using an siRNA approach decreased cell adhesion, migration, and proliferation. Furthermore, Bnip3 downregulation altered the structure (electron density) and function (cellular ATP levels, membrane potential, and reacitve oxygen species generation) of mitochondria and decreased expression of cytoskeleton proteins vinculin, paxillin, and actinin. These findings suggest that Bnip3 via regulation of mitochondria functions and expression of adhesion proteins regulates ASM adhesion, migration, and proliferation. This study reveals a novel role for Bnip3 in ASM functions and establishes Bnip3 as a potential target in mitigating ASM remodeling in asthma.
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Affiliation(s)
- Shi Pan
- Center for Translational Medicine, Jane and Leonard Korman Lung Center, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Sushrut D Shah
- Center for Translational Medicine, Jane and Leonard Korman Lung Center, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Reynold A Panettieri
- Rutgers Institute for Translational Medicine and Science, Child Health Institute of New Jersey, Rutgers University, New Brunswick, New Jersey
| | - Deepak A Deshpande
- Center for Translational Medicine, Jane and Leonard Korman Lung Center, Thomas Jefferson University, Philadelphia, Pennsylvania
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22
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Lermant A, Murdoch CE. Cysteine Glutathionylation Acts as a Redox Switch in Endothelial Cells. Antioxidants (Basel) 2019; 8:E315. [PMID: 31426416 PMCID: PMC6720164 DOI: 10.3390/antiox8080315] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 08/10/2019] [Accepted: 08/12/2019] [Indexed: 12/11/2022] Open
Abstract
Oxidative post-translational modifications (oxPTM) of receptors, enzymes, ion channels and transcription factors play an important role in cell signaling. oxPTMs are a key way in which oxidative stress can influence cell behavior during diverse pathological settings such as cardiovascular diseases (CVD), cancer, neurodegeneration and inflammatory response. In addition, changes in oxPTM are likely to be ways in which low level reactive oxygen and nitrogen species (RONS) may contribute to redox signaling, exerting changes in physiological responses including angiogenesis, cardiac remodeling and embryogenesis. Among oxPTM, S-glutathionylation of reactive cysteines emerges as an important regulator of vascular homeostasis by modulating endothelial cell (EC) responses to their local redox environment. This review summarizes the latest findings of S-glutathionylated proteins in major EC pathways, and the functional consequences on vascular pathophysiology. This review highlights the diversity of molecules affected by S-glutathionylation, and the complex consequences on EC function, thereby demonstrating an intricate dual role of RONS-induced S-glutathionylation in maintaining vascular homeostasis and participating in various pathological processes.
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Affiliation(s)
- Agathe Lermant
- Systems Medicine, School of Medicine, University of Dundee, Dundee, Scotland DD1 9SY, UK
| | - Colin E Murdoch
- Systems Medicine, School of Medicine, University of Dundee, Dundee, Scotland DD1 9SY, UK.
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23
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Vukelic S, Xu Q, Seidel-Rogol B, Faidley EA, Dikalova AE, Hilenski LL, Jorde U, Poole LB, Lassègue B, Zhang G, Griendling KK. NOX4 (NADPH Oxidase 4) and Poldip2 (Polymerase δ-Interacting Protein 2) Induce Filamentous Actin Oxidation and Promote Its Interaction With Vinculin During Integrin-Mediated Cell Adhesion. Arterioscler Thromb Vasc Biol 2019; 38:2423-2434. [PMID: 30354218 DOI: 10.1161/atvbaha.118.311668] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Objective- Actin cytoskeleton assembly and organization, as a result of focal adhesion (FA) formation during cell adhesion, are dependent on reactive oxygen species and the cellular redox environment. Poldip2 (polymerase δ-interacting protein 2), a novel regulator of NOX4 (NADPH oxidase 4), plays a significant role in reactive oxygen species production and cytoskeletal remodeling. Thus, we hypothesized that endogenous reactive oxygen species derived from Poldip2/NOX4 contribute to redox regulation of actin and cytoskeleton assembly during integrin-mediated cell adhesion. Approach and Results- Using vascular smooth muscle cells, we verified that hydrogen peroxide (H2O2) levels increase during integrin-mediated cell attachment as a result of activation of NOX4. Filamentous actin (F-actin) was oxidized by sulfenylation during cell attachment, with a peak at 3 hours (0.80±0.04 versus 0.08±0.13 arbitrary units at time zero), which was enhanced by overexpression of Poldip2. Depletion of Poldip2 or NOX4 using siRNA, or scavenging of endogenous H2O2 with catalase, inhibited F-actin oxidation by 78±26%, 99±1%, and 98±1%, respectively. To determine the consequence of F-actin oxidation, we examined the binding of F-actin to vinculin, a protein involved in FA complexes that regulates FA maturation. Vinculin binding during cell adhesion as well as migration capacity were inhibited after transfection with actin containing 2 oxidation-resistant point mutations (C272A and C374A). Silencing of Poldip2 or NOX4 also impaired actin-vinculin interaction, which disturbed maturation of FAs and inhibited cell migration. Conclusions- These results suggest that integrin engagement during cell attachment activates Poldip2/Nox4 to oxidize actin, which modulates FA assembly.
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Affiliation(s)
- Sasa Vukelic
- From the Division of Cardiology, Department of Medicine, Emory University, Atlanta, GA (S.V., Q.X., B.S.-R., E.A.F., L.L.H., B.L., K.K.G.).,Division of Cardiology, Department of Medicine, Albert Einstein College of Medicine, Bronx, NY (S.V., U.J.)
| | - Qian Xu
- From the Division of Cardiology, Department of Medicine, Emory University, Atlanta, GA (S.V., Q.X., B.S.-R., E.A.F., L.L.H., B.L., K.K.G.).,Department of Cardiovascular Medicine, Xiangya Hospital, Central South University, Changsha, China (Q.X., G.Z.)
| | - Bonnie Seidel-Rogol
- From the Division of Cardiology, Department of Medicine, Emory University, Atlanta, GA (S.V., Q.X., B.S.-R., E.A.F., L.L.H., B.L., K.K.G.)
| | - Elizabeth A Faidley
- From the Division of Cardiology, Department of Medicine, Emory University, Atlanta, GA (S.V., Q.X., B.S.-R., E.A.F., L.L.H., B.L., K.K.G.)
| | - Anna E Dikalova
- Department of Medicine, Vanderbilt University, Nashville, TN (A.E.D.)
| | - Lula L Hilenski
- From the Division of Cardiology, Department of Medicine, Emory University, Atlanta, GA (S.V., Q.X., B.S.-R., E.A.F., L.L.H., B.L., K.K.G.)
| | - Ulrich Jorde
- Division of Cardiology, Department of Medicine, Albert Einstein College of Medicine, Bronx, NY (S.V., U.J.)
| | - Leslie B Poole
- Department of Biochemistry, Center for Molecular Signaling, Center for Redox Biology and Medicine, Wake Forest School of Medicine, Winston-Salem, NC (L.B.P.)
| | - Bernard Lassègue
- From the Division of Cardiology, Department of Medicine, Emory University, Atlanta, GA (S.V., Q.X., B.S.-R., E.A.F., L.L.H., B.L., K.K.G.)
| | - Guogang Zhang
- Department of Cardiovascular Medicine, Xiangya Hospital, Central South University, Changsha, China (Q.X., G.Z.)
| | - Kathy K Griendling
- From the Division of Cardiology, Department of Medicine, Emory University, Atlanta, GA (S.V., Q.X., B.S.-R., E.A.F., L.L.H., B.L., K.K.G.)
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24
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Paracrine Mechanisms of Redox Signalling for Postmitotic Cell and Tissue Regeneration. Trends Cell Biol 2019; 29:514-530. [DOI: 10.1016/j.tcb.2019.01.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 01/10/2019] [Accepted: 01/18/2019] [Indexed: 01/08/2023]
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25
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Li J, Chen Y, Han C, Huang S, Chen S, Luo L, Liu Y. JNK1/β-catenin axis regulates H2O2-induced epithelial-to-mesenchymal transition in human lens epithelial cells. Biochem Biophys Res Commun 2019; 511:336-342. [DOI: 10.1016/j.bbrc.2019.02.049] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 02/09/2019] [Indexed: 12/18/2022]
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26
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Ranieri M, Di Mise A, Difonzo G, Centrone M, Venneri M, Pellegrino T, Russo A, Mastrodonato M, Caponio F, Valenti G, Tamma G. Green olive leaf extract (OLE) provides cytoprotection in renal cells exposed to low doses of cadmium. PLoS One 2019; 14:e0214159. [PMID: 30897184 PMCID: PMC6428325 DOI: 10.1371/journal.pone.0214159] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 03/07/2019] [Indexed: 02/07/2023] Open
Abstract
Cadmium (Cd) is a heavy and highly toxic metal that contaminates air, food and water. Cadmium accumulates in several organs altering normal functions. The kidney is the major organ at risk of damage from chronic exposure to cadmium as a contaminant in food and water. This study aims to investigate the beneficial effects of OLE in renal collecting duct MCD4 cells exposed to a low dose cadmium (1 μM). In MCD4 cells cadmium caused an increase in ROS production, as well as generation of lipid droplets and reduced cell viability. Moreover, cadmium exposure led to a remarkable increase in the frequency of micronuclei and DNA double-strand breaks, assessed using the alkaline comet assay. In addition, cadmium dramatically altered cell cytoskeleton architecture and caused S-glutathionylation of actin. Notably, all cadmium-induced cellular deregulations were prevented by co-treatment with OLE, possibly due to its antioxidant action and to the presence of bioactive phytocompounds. Indeed, OLE treatment attenuated Cd-induced actin S-glutathionylation, thereby stabilizing actin filaments. Taken together, these observations provide a novel insight into the biological action of OLE in renal cells and support the notion that OLE may serve as a potential adjuvant against cadmium-induced nephrotoxicity.
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Affiliation(s)
- Marianna Ranieri
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, Bari, Italy
| | - Annarita Di Mise
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, Bari, Italy
| | - Graziana Difonzo
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, Bari, Italy
| | - Mariangela Centrone
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, Bari, Italy
| | - Maria Venneri
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, Bari, Italy
| | - Tommaso Pellegrino
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, Bari, Italy
| | - Annamaria Russo
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, Bari, Italy
| | | | - Francesco Caponio
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, Bari, Italy
| | - Giovanna Valenti
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, Bari, Italy
- Istituto Nazionale di Biostrutture e Biosistemi (I.N.B.B.), Bari, Italy
- Center of Excellence in Comparative Genomics (CEGBA), University of Bari, Bari, Italy
| | - Grazia Tamma
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, Bari, Italy
- Istituto Nazionale di Biostrutture e Biosistemi (I.N.B.B.), Bari, Italy
- * E-mail:
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27
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Gruhlke MCH, Antelmann H, Bernhardt J, Kloubert V, Rink L, Slusarenko AJ. The human allicin-proteome: S-thioallylation of proteins by the garlic defence substance allicin and its biological effects. Free Radic Biol Med 2019; 131:144-153. [PMID: 30500420 PMCID: PMC6342545 DOI: 10.1016/j.freeradbiomed.2018.11.022] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 11/19/2018] [Accepted: 11/19/2018] [Indexed: 12/14/2022]
Abstract
A single clove of edible garlic (Allium sativum L.) of about 10 g produces up to 5 mg of allicin (diallylthiosulfinate), a thiol-reactive sulfur-containing defence substance that gives injured garlic tissue its characteristic smell. Allicin induces apoptosis or necrosis in a dose-dependent manner but biocompatible doses influence cellular metabolism and signalling cascades. Oxidation of protein thiols and depletion of the glutathione pool are thought to be responsible for allicin's physiological effects. Here, we studied the effect of allicin on post-translational thiol-modification in human Jurkat T-cells using shotgun LC-MS/MS analyses. We identified 332 proteins that were modified by S-thioallylation in the Jurkat cell proteome which causes a mass shift of 72 Da on cysteines. Many S-thioallylated proteins are highly abundant proteins, including cytoskeletal proteins tubulin, actin, cofilin, filamin and plastin-2, the heat shock chaperones HSP90 and HSPA4, the glycolytic enzymes GAPDH, ALDOA, PKM as well the protein translation factor EEF2. Allicin disrupted the actin cytoskeleton in murine L929 fibroblasts. Allicin stimulated the immune response by causing Zn2+ release from proteins and increasing the Zn2+-dependent IL-1-triggered production of IL-2 in murine EL-4 T-cells. Furthermore, allicin caused inhibition of enolase activity, an enzyme considered a cancer therapy target. In conclusion, our study revealed the widespread extent of S-thioallylation in the human Jurkat cell proteome and showed effects of allicin exposure on essential cellular functions of selected targets, many of which are targets for cancer therapy.
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Affiliation(s)
- Martin C H Gruhlke
- Department of Plant Physiology, RWTH Aachen University, Worringer Weg 1, D-52056 Aachen, Germany
| | - Haike Antelmann
- Freie Universität Berlin, Institute of Biology-Microbiology, Königin-Luise-Str. 12-16, D-14195 Berlin, Germany
| | - Jörg Bernhardt
- Institute of Microbiology, University of Greifswald, Felix-Hausdorff-Straße 8, D-17489 Greifswald, Germany
| | - Veronika Kloubert
- Institute of Immunology, RWTH Aachen University Hospital, Pauwelsstraße 30, D-52074 Aachen, Germany
| | - Lothar Rink
- Institute of Immunology, RWTH Aachen University Hospital, Pauwelsstraße 30, D-52074 Aachen, Germany
| | - Alan J Slusarenko
- Department of Plant Physiology, RWTH Aachen University, Worringer Weg 1, D-52056 Aachen, Germany
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28
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Varland S, Vandekerckhove J, Drazic A. Actin Post-translational Modifications: The Cinderella of Cytoskeletal Control. Trends Biochem Sci 2019; 44:502-516. [PMID: 30611609 DOI: 10.1016/j.tibs.2018.11.010] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Revised: 11/22/2018] [Accepted: 11/27/2018] [Indexed: 11/30/2022]
Abstract
Actin is one of the most abundant proteins in eukaryotic cells and the main component of the microfilament system. It plays essential roles in numerous cellular activities, including muscle contraction, maintenance of cell integrity, and motility, as well as transcriptional regulation. Besides interacting with various actin-binding proteins (ABPs), proper actin function is regulated by post-translational modifications (PTMs), such as acetylation, arginylation, oxidation, and others. Here, we explain how actin PTMs can contribute to filament formation and stability, and may have additional actin regulatory functions, which potentially contribute to disease development.
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Affiliation(s)
- Sylvia Varland
- Department of Biomedicine, University of Bergen, Jonas Lies vei 91, N-5020 Bergen, Norway; Department of Biological Sciences, University of Bergen, Thormøhlensgate 53 A, N-5020 Bergen, Norway; Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, 160 College Street, Toronto, ON M5S 3E1, Canada
| | - Joël Vandekerckhove
- Department of Biochemistry, UGent Center for Medical Biotechnology, Ghent University, Albert Baertsoenkaai 3, 9000 Gent, Belgium
| | - Adrian Drazic
- Department of Biomedicine, University of Bergen, Jonas Lies vei 91, N-5020 Bergen, Norway.
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29
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Sonego G, Abonnenc M, Crettaz D, Lion N, Tissot JD, Prudent M. Irreversible oxidations of platelet proteins after riboflavin-UVB pathogen inactivation. Transfus Clin Biol 2018; 27:36-42. [PMID: 30638959 DOI: 10.1016/j.tracli.2018.12.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 12/08/2018] [Indexed: 12/16/2022]
Abstract
Pathogen inactivation technologies are known to alter in vitro phenotype and functional properties of platelets. Because pathogen inactivation generates reactive oxygen species, oxidative stress is considered as one of the plausible cause at the origin of the platelet storage lesion acceleration after treatment. To date proteomics has been used to document the protein variations to picture out the impact. Here, platelet concentrates were prepared from buffy-coats in Intersol additive solution, leukoreduced and pathogen inactivated using a riboflavin/UVB treatment. At day 2 of storage the platelet proteomes of control (untreated) and treated platelet concentrates were investigated against the site specific oxidation by liquid chromatography coupled to tandem mass spectrometry in a shotgun experiment. The shotgun approach detected 9350 peptides (and 2534 proteins) of which 1714 were oxidized. Eighteen peptides were found exclusively oxidized in treated platelets whereas 3 peptides were only found oxidized in control. The present data evidenced an interference with several proteins involved in platelet aggregation and platelet shape change (such as talin and vinculin).
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Affiliation(s)
- G Sonego
- Laboratoire de recherche sur les produits sanguins, recherche et développement produits, transfusion interrégionale CRS, Épalinges, Switzerland; Faculté de biologie et de médecine, université de Lausanne, Lausanne, Switzerland
| | - M Abonnenc
- Laboratoire de recherche sur les produits sanguins, recherche et développement produits, transfusion interrégionale CRS, Épalinges, Switzerland
| | - D Crettaz
- Laboratoire de recherche sur les produits sanguins, recherche et développement produits, transfusion interrégionale CRS, Épalinges, Switzerland
| | - N Lion
- Laboratoire de recherche sur les produits sanguins, recherche et développement produits, transfusion interrégionale CRS, Épalinges, Switzerland; Faculté de biologie et de médecine, université de Lausanne, Lausanne, Switzerland
| | - J-D Tissot
- Laboratoire de recherche sur les produits sanguins, recherche et développement produits, transfusion interrégionale CRS, Épalinges, Switzerland; Faculté de biologie et de médecine, université de Lausanne, Lausanne, Switzerland
| | - M Prudent
- Laboratoire de recherche sur les produits sanguins, recherche et développement produits, transfusion interrégionale CRS, Épalinges, Switzerland; Faculté de biologie et de médecine, université de Lausanne, Lausanne, Switzerland.
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30
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Nemeth R, Neubert M, Butz ZJ, Ni TW, Ackerson CJ. Metalloid Reductase of Pseudomonas moravenis Stanleyae Conveys Nanoparticle Mediated Metalloid Tolerance. ACS OMEGA 2018; 3:14902-14909. [PMID: 30533575 PMCID: PMC6275949 DOI: 10.1021/acsomega.8b00826] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 08/17/2018] [Indexed: 06/09/2023]
Abstract
A glutathione reductase (GSHR)-like enzyme in Pseudomonas moraviensis stanleyae was previously implicated as underlying the bacterium's remarkable SeO3 2- tolerance. Herein, this enzyme is sequenced, recombinantly expressed, and fully characterized. The enzyme is highly adapted for selenodiglutathione substrates (K m = 336 μM) compared to oxidized glutathione (K m = 8.22 mM). The recombinant expression of this enzyme in the laboratory strains of Escherichia coli conveys a 10-fold increase in IC90 for SeO3 2-. Moreover, selenium nanoparticles are observed when the enzyme is overexpressed in the cells exposed to SeO3 2-, but not in the corresponding no-enzyme controls. The analyses of the structural homology models of the enzyme reveal changes in the parts of the enzyme associated with product release, which may underlie the Se substrate specialization. Combined, the observations of adaptation to Se reduction over oxidized glutathione reduction as well as the portability of this nanoparticle-mediated SeO3 2- tolerance into other cell lines suggest that the P. moraviensis GSHR may be better described as a GSHR-like metalloid reductase.
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Affiliation(s)
- Richard Nemeth
- Department of Chemistry, Colorado
State University, Fort Collins, Colorado 80523, United States
| | | | - Zachary J. Butz
- Department of Chemistry, Colorado
State University, Fort Collins, Colorado 80523, United States
| | | | - Christopher J. Ackerson
- Department of Chemistry, Colorado
State University, Fort Collins, Colorado 80523, United States
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31
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Cha J, Kim H, Hwang NS, Kim P. Mild Reduction of the Cancer Cell Surface as an Anti-invasion Treatment. ACS APPLIED MATERIALS & INTERFACES 2018; 10:35676-35680. [PMID: 30288974 DOI: 10.1021/acsami.8b12566] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Cancer cell invasion is the main reason for high mortality in patients with malignant cancers. There has been little improvement in cancer prognosis because of a high rate of infiltration. Therefore, successful treatment requires inhibition of cancer cell invasion. Here, we suggest a new approach to inhibit cancer cell invasion through mild reduction of cell surface proteins to expose free thiols. Through mild reduction, the cancer cell surfaces present free active thiols at the membranes, enhancing cell adhesion to extracellular matrix and decreasing motility. Collectively, we suggest cell surface modification as a new therapeutic approach to treat invading malignant cancers.
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Affiliation(s)
- Junghwa Cha
- Department of Bio and Brain Engineering , KAIST , Daejeon 34141 , Korea
| | - Hyunbum Kim
- Department of Chemical and Biological Engineering, Institute for Chemical Processes , Seoul National University , Seoul 08826 , Korea
| | - Nathaniel S Hwang
- Department of Chemical and Biological Engineering, Institute for Chemical Processes , Seoul National University , Seoul 08826 , Korea
- BioMAX Institute , Seoul National University , Seoul 08826 , Korea
| | - Pilnam Kim
- Department of Bio and Brain Engineering , KAIST , Daejeon 34141 , Korea
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32
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Cheriyath V, Kaur J, Davenport A, Khalel A, Chowdhury N, Gaddipati L. G1P3 (IFI6), a mitochondrial localised antiapoptotic protein, promotes metastatic potential of breast cancer cells through mtROS. Br J Cancer 2018; 119:52-64. [PMID: 29899394 PMCID: PMC6035266 DOI: 10.1038/s41416-018-0137-3] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Revised: 04/27/2018] [Accepted: 05/09/2018] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Redox deregulations are ubiquitous in cancer cells. However, the role of mitochondrial redox deregulation in metastasis remains unclear. In breast cancer, upregulation of mitochondrial antiapoptotic protein G1P3 (IFI6) was associated with poor distance metastasis-free survival (DMFS). Therefore, we tested the hypothesis that G1P3-induced mitochondrial redox deregulation confers metastatic potentials in breast cancer cells. METHODS Cell migration and invasion assays; confocal and immunofluorescence microscopy; and Illumina HumanHT-12 BeadChip to assess gene expression. RESULTS Consequent to its localisation on inner-mitochondrial membrane, mtROS were higher in G1P3-expressing cells (MCF-7G1P3). G1P3-overexpressing cells migrated and invaded faster than the vector controls with increased number of filopodia and F-actin bundles (p ≤ 0.05). mtROS suppression with H2O2 scavengers and mitochondrial-specific antioxidants significantly decreased migratory structures and reversed G1P3-induced migration and invasion (p ≤ 0.05). Knocking down G1P3 decreased both migration and migratory structures in MCF-7G1P3 cells. Moreover, gene networks involved in redox regulation, metastasis and actin remodelling were upregulated in MCF-7G1P3 cells. CONCLUSIONS G1P3-induced mtROS have a direct role in migratory structure formation and nuclear gene expression to promote breast cancer cell metastasis. Therefore, interrupting mitochondrial functions of G1P3 may improve clinical outcomes in breast cancer patients.
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Affiliation(s)
- Venugopalan Cheriyath
- Department of Biological and Environmental Sciences, Texas A&M University-Commerce, Commerce, TX, 75429, USA.
| | - Jaspreet Kaur
- Department of Biological and Environmental Sciences, Texas A&M University-Commerce, Commerce, TX, 75429, USA
| | - Anne Davenport
- Department of Biological and Environmental Sciences, Texas A&M University-Commerce, Commerce, TX, 75429, USA.,Department of Biology, Texas Woman's University, Denton, TX, 76204, USA
| | - Ashjan Khalel
- Department of Biological and Environmental Sciences, Texas A&M University-Commerce, Commerce, TX, 75429, USA
| | - Nobel Chowdhury
- Department of Biological and Environmental Sciences, Texas A&M University-Commerce, Commerce, TX, 75429, USA
| | - Lalitha Gaddipati
- Department of Biological and Environmental Sciences, Texas A&M University-Commerce, Commerce, TX, 75429, USA
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33
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Zepeta-Flores N, Valverde M, Lopez-Saavedra A, Rojas E. Glutathione depletion triggers actin cytoskeleton changes via actin-binding proteins. Genet Mol Biol 2018; 41:475-487. [PMID: 29870570 PMCID: PMC6082235 DOI: 10.1590/1678-4685-gmb-2017-0158] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 11/18/2017] [Indexed: 11/30/2022] Open
Abstract
The importance of glutathione (GSH) in alternative cellular roles to the
canonically proposed, were analyzed in a model unable to synthesize GSH. Gene
expression analysis shows that the regulation of the actin cytoskeleton pathway
is strongly impacted by the absence of GSH. To test this hypothesis, we evaluate
the effect of GSH depletion via buthionine sulfoximine (5 and 12.5 mM) in human
neuroblastoma MSN cells. In the present study, 70% of GSH reduction did not
induce reactive oxygen species, lipoperoxidation, or cytotoxicity, which enabled
us to evaluate the effect of glutathione in the absence of oxidative stress. The
cells with decreasing GSH levels acquired morphology changes that depended on
the actin cytoskeleton and not on tubulin. We evaluated the expression of three
actin-binding proteins: thymosin β4, profilin and gelsolin, showing a reduced
expression, both at gene and protein levels at 24 hours of treatment; however,
this suppression disappears after 48 hours of treatment. These changes were
sufficient to trigger the co-localization of the three proteins towards
cytoplasmic projections. Our data confirm that a decrease in GSH in the absence
of oxidative stress can transiently inhibit the actin binding proteins and that
this stimulus is sufficient to induce changes in cellular morphology via the
actin cytoskeleton.
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Affiliation(s)
- Nahum Zepeta-Flores
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, México D.F., Mexico
| | - Mahara Valverde
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, México D.F., Mexico
| | - Alejandro Lopez-Saavedra
- Unidad Biomédica de Investigación en Cáncer, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Instituto Nacional de Cancerología, México. D.F., Mexico
| | - Emilio Rojas
- Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, México D.F., Mexico
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Ishizuka Y, Koshinaga T, Hirano T, Nagasaki-Maeoka E, Watanabe Y, Hoshi R, Yoshizawa S, Sugito K, Kawashima H, Uekusa S, Fukuda N, Soma M, Fujiwara K. NRP1 knockdown promotes the migration and invasion of human neuroblastoma-derived SK‑N‑AS cells via the activation of β1 integrin expression. Int J Oncol 2018; 53:159-166. [PMID: 29750423 DOI: 10.3892/ijo.2018.4397] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 04/24/2018] [Indexed: 11/06/2022] Open
Abstract
Neuropilin 1 (NRP1) is a transmembrane glycoprotein, which regulates many aspects of cellular function by functioning as co-receptor of various ligands. Recent studies have suggested that NRP1 promotes tumorigenesis, not only by activating the growth of tumor vessels, but also by activating the growth or migration of tumor cells themselves. The present study was performed to elucidate the roles of NRP1 in the development and/or progression of neuroblastoma (NB). In contrast to previous observations in various types of cancer, the analysis of public datasets indicated that lower levels of NRP1 expression were significantly associated with a shorter survival period of patients with NB. Consistent with this finding, wound-healing assay and Matrigel invasion assay revealed that NB cells in which NRP1 was knocked down exhibited increased migratory and invasive abilities. Further analyses indicated that β1 integrin expression was markedly increased in NB cells in which NRP1 was knocked down, and NB cells in which β1 integrin was knocked down exhibited decreased migratory and invasive abilities. The results presented herein indicate that NRP1 exerts tumor suppressive effects in NB, at least in part by regulating the expression of β1 integrin.
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Affiliation(s)
- Yoshiaki Ishizuka
- Department of Pediatric Surgery, Nihon University School of Medicine, Tokyo 173-8610, Japan
| | - Tsugumichi Koshinaga
- Department of Pediatric Surgery, Nihon University School of Medicine, Tokyo 173-8610, Japan
| | - Takayuki Hirano
- Department of Pediatric Surgery, Nihon University School of Medicine, Tokyo 173-8610, Japan
| | - Eri Nagasaki-Maeoka
- Department of Pediatric Surgery, Nihon University School of Medicine, Tokyo 173-8610, Japan
| | - Yosuke Watanabe
- Department of Pediatric Surgery, Nihon University School of Medicine, Tokyo 173-8610, Japan
| | - Reina Hoshi
- Department of Pediatric Surgery, Nihon University School of Medicine, Tokyo 173-8610, Japan
| | - Shinsuke Yoshizawa
- Department of Pediatric Surgery, Nihon University School of Medicine, Tokyo 173-8610, Japan
| | - Kiminobu Sugito
- Department of Pediatric Surgery, Nihon University School of Medicine, Tokyo 173-8610, Japan
| | - Hiroyuki Kawashima
- Department of Pediatric Surgery, Nihon University School of Medicine, Tokyo 173-8610, Japan
| | - Shota Uekusa
- Department of Pediatric Surgery, Nihon University School of Medicine, Tokyo 173-8610, Japan
| | - Noboru Fukuda
- Division of Nephrology, Hypertension and Endocrinology, Department of Medicine, Nihon University School of Medicine, Tokyo 173-8610, Japan
| | - Masayoshi Soma
- Division of General Medicine, Department of Medicine, Nihon University School of Medicine, Tokyo 173-8610, Japan
| | - Kyoko Fujiwara
- Division of General Medicine, Department of Medicine, Nihon University School of Medicine, Tokyo 173-8610, Japan
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35
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Oswald MCW, Garnham N, Sweeney ST, Landgraf M. Regulation of neuronal development and function by ROS. FEBS Lett 2018; 592:679-691. [PMID: 29323696 PMCID: PMC5888200 DOI: 10.1002/1873-3468.12972] [Citation(s) in RCA: 126] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 01/02/2018] [Indexed: 12/20/2022]
Abstract
Reactive oxygen species (ROS) have long been studied as destructive agents in the context of nervous system ageing, disease and degeneration. Their roles as signalling molecules under normal physiological conditions is less well understood. Recent studies have provided ample evidence of ROS-regulating neuronal development and function, from the establishment of neuronal polarity to growth cone pathfinding; from the regulation of connectivity and synaptic transmission to the tuning of neuronal networks. Appreciation of the varied processes that are subject to regulation by ROS might help us understand how changes in ROS metabolism and buffering could progressively impact on neuronal networks with age and disease.
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Affiliation(s)
| | - Nathan Garnham
- Department of BiologyUniversity of YorkHeslington YorkUK
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36
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Regulation of protein function by S-nitrosation and S-glutathionylation: processes and targets in cardiovascular pathophysiology. Biol Chem 2017; 398:1267-1293. [DOI: 10.1515/hsz-2017-0150] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 08/07/2017] [Indexed: 02/07/2023]
Abstract
AbstractDecades of chemical, biochemical and pathophysiological research have established the relevance of post-translational protein modifications induced by processes related to oxidative stress, with critical reflections on cellular signal transduction pathways. A great deal of the so-called ‘redox regulation’ of cell function is in fact mediated through reactions promoted by reactive oxygen and nitrogen species on more or less specific aminoacid residues in proteins, at various levels within the cell machinery. Modifications involving cysteine residues have received most attention, due to the critical roles they play in determining the structure/function correlates in proteins. The peculiar reactivity of these residues results in two major classes of modifications, with incorporation of NO moieties (S-nitrosation, leading to formation of proteinS-nitrosothiols) or binding of low molecular weight thiols (S-thionylation, i.e. in particularS-glutathionylation,S-cysteinylglycinylation andS-cysteinylation). A wide array of proteins have been thus analyzed in detail as far as their susceptibility to either modification or both, and the resulting functional changes have been described in a number of experimental settings. The present review aims to provide an update of available knowledge in the field, with a special focus on the respective (sometimes competing and antagonistic) roles played by proteinS-nitrosations andS-thionylations in biochemical and cellular processes specifically pertaining to pathogenesis of cardiovascular diseases.
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Miyata Y, Matsuo T, Sagara Y, Ohba K, Ohyama K, Sakai H. A Mini-Review of Reactive Oxygen Species in Urological Cancer: Correlation with NADPH Oxidases, Angiogenesis, and Apoptosis. Int J Mol Sci 2017; 18:ijms18102214. [PMID: 29065504 PMCID: PMC5666894 DOI: 10.3390/ijms18102214] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 10/17/2017] [Accepted: 10/17/2017] [Indexed: 12/24/2022] Open
Abstract
Oxidative stress refers to elevated reactive oxygen species (ROS) levels, and NADPH oxidases (NOXs), which are one of the most important sources of ROS. Oxidative stress plays important roles in the etiologies, pathological mechanisms, and treatment strategies of vascular diseases. Additionally, oxidative stress affects mechanisms of carcinogenesis, tumor growth, and prognosis in malignancies. Nearly all solid tumors show stimulation of neo-vascularity, termed angiogenesis, which is closely associated with malignant aggressiveness. Thus, cancers can be seen as a type of vascular disease. Oxidative stress-induced functions are regulated by complex endogenous mechanisms and exogenous factors, such as medication and diet. Although understanding these regulatory mechanisms is important for improving the prognosis of urothelial cancer, it is not sufficient, because there are controversial and conflicting opinions. Therefore, we believe that this knowledge is essential to discuss observations and treatment strategies in urothelial cancer. In this review, we describe the relationships between members of the NOX family and tumorigenesis, tumor growth, and pathological mechanisms in urological cancers including prostate cancer, renal cell carcinoma, and urothelial cancer. In addition, we introduce natural compounds and chemical agents that are associated with ROS-induced angiogenesis or apoptosis.
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Affiliation(s)
- Yasuyoshi Miyata
- Department of Urology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan.
| | - Tomohiro Matsuo
- Department of Urology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan.
| | - Yuji Sagara
- Department of Urology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan.
| | - Kojiro Ohba
- Department of Urology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan.
| | - Kaname Ohyama
- Department of Pharmaceutical Science, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan.
| | - Hideki Sakai
- Department of Urology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan.
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Redox regulation in tumor cell epithelial-mesenchymal transition: molecular basis and therapeutic strategy. Signal Transduct Target Ther 2017; 2:17036. [PMID: 29263924 PMCID: PMC5661624 DOI: 10.1038/sigtrans.2017.36] [Citation(s) in RCA: 127] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Revised: 04/25/2017] [Accepted: 04/25/2017] [Indexed: 02/05/2023] Open
Abstract
Epithelial–mesenchymal transition (EMT) is recognized as a driving force of cancer cell metastasis and drug resistance, two leading causes of cancer recurrence and cancer-related death. It is, therefore, logical in cancer therapy to target the EMT switch to prevent such cancer metastasis and recurrence. Previous reports have indicated that growth factors (such as epidermal growth factor and fibroblast growth factor) and cytokines (such as the transforming growth factor beta (TGF-β) family) are major stimulators of EMT. However, the mechanisms underlying EMT initiation and progression remain unclear. Recently, emerging evidence has suggested that reactive oxygen species (ROS), important cellular secondary messengers involved in diverse biological events in cancer cells, play essential roles in the EMT process in cancer cells by regulating extracellular matrix (ECM) remodeling, cytoskeleton remodeling, cell–cell junctions, and cell mobility. Thus, targeting EMT by manipulating the intracellular redox status may hold promise for cancer therapy. Herein, we will address recent advances in redox biology involved in the EMT process in cancer cells, which will contribute to the development of novel therapeutic strategies by targeting redox-regulated EMT for cancer treatment.
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Xu Q, Huff LP, Fujii M, Griendling KK. Redox regulation of the actin cytoskeleton and its role in the vascular system. Free Radic Biol Med 2017; 109:84-107. [PMID: 28285002 PMCID: PMC5497502 DOI: 10.1016/j.freeradbiomed.2017.03.004] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 02/17/2017] [Accepted: 03/06/2017] [Indexed: 12/17/2022]
Abstract
The actin cytoskeleton is critical for form and function of vascular cells, serving mechanical, organizational and signaling roles. Because many cytoskeletal proteins are sensitive to reactive oxygen species, redox regulation has emerged as a pivotal modulator of the actin cytoskeleton and its associated proteins. Here, we summarize work implicating oxidants in altering actin cytoskeletal proteins and focus on how these alterations affect cell migration, proliferation and contraction of vascular cells. Finally, we discuss the role of oxidative modification of the actin cytoskeleton in vivo and highlight its importance for vascular diseases.
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Affiliation(s)
- Qian Xu
- Division of Cardiology, Department of Medicine, Emory University, 101 Woodruff Circle, 308a WMB, Atlanta, GA 30322, United States; Department of Cardiovascular Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Lauren P Huff
- Division of Cardiology, Department of Medicine, Emory University, 101 Woodruff Circle, 308a WMB, Atlanta, GA 30322, United States
| | - Masakazu Fujii
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Japan
| | - Kathy K Griendling
- Division of Cardiology, Department of Medicine, Emory University, 101 Woodruff Circle, 308a WMB, Atlanta, GA 30322, United States.
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40
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Hu X, Fernandes J, Jones DP, Go YM. Cadmium stimulates myofibroblast differentiation and mouse lung fibrosis. Toxicology 2017; 383:50-56. [PMID: 28341147 DOI: 10.1016/j.tox.2017.03.018] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 02/26/2017] [Accepted: 03/20/2017] [Indexed: 12/15/2022]
Abstract
Increasing evidence suggests that Cd at levels found in the human diet can cause oxidative stress and activate redox-sensitive transcription factors in inflammatory signaling. Following inflammation, tissue repair often involves activation of redox-sensitive transcription factors in fibroblasts. In lungs, epithelial barrier remodeling is required to restore gas exchange and barrier function, and aberrant myofibroblast differentiation leads to pulmonary fibrosis. Contributions of exogenous exposures, such as dietary Cd, to pulmonary fibrosis remain incompletely defined. In the current study, we tested whether Cd activates fibrotic signaling in human fetal lung fibroblasts (HFLF) at micromolar and submicromolar Cd concentrations that do not cause cell death. Exposure of HFLF to low-dose Cd (≤1.0μM) caused an increase in stress fibers and increased protein levels of myofibroblast differentiation markers, including α-smooth muscle actin (α-SMA) and extra-domain-A-containing fibronectin (ED-A-FN). Assay of transcription factor (TF) activity using a 45-TF array showed that Cd increased activity of 12 TF, including SMAD2/3/4 (mothers against decapentaplegic homolog) signaling differentiation and fibrosis. Results were confirmed by real-time PCR and supported by increased expression of target genes of SMAD2/3/4. Immunocytochemistry of lungs of mice exposed to low-dose Cd (0.3 and 1.0mg/L in drinking water) showed increased α-SMA protein level with lung Cd accumulation similar to lung Cd in non-smoking humans. Together, the results show that relatively low Cd exposures stimulate pulmonary fibrotic signaling and myofibroblast differentiation by activating SMAD2/3/4-dependent signaling. The results indicate that dietary Cd intake could be an important variable contributing to pulmonary fibrosis in humans.
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Affiliation(s)
- Xin Hu
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Emory University, Atlanta, GA 30322, United States
| | - Jolyn Fernandes
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Emory University, Atlanta, GA 30322, United States
| | - Dean P Jones
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Emory University, Atlanta, GA 30322, United States
| | - Young-Mi Go
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Emory University, Atlanta, GA 30322, United States.
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Galadari S, Rahman A, Pallichankandy S, Thayyullathil F. Reactive oxygen species and cancer paradox: To promote or to suppress? Free Radic Biol Med 2017; 104:144-164. [PMID: 28088622 DOI: 10.1016/j.freeradbiomed.2017.01.004] [Citation(s) in RCA: 622] [Impact Index Per Article: 88.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 12/16/2016] [Accepted: 01/03/2017] [Indexed: 02/07/2023]
Abstract
Reactive oxygen species (ROS), a group of highly reactive ions and molecules, are increasingly being appreciated as powerful signaling molecules involved in the regulation of a variety of biological processes. Indeed, their role is continuously being delineated in a variety of pathophysiological conditions. For instance, cancer cells are shown to have increased ROS levels in comparison to their normal counterparts. This is partly due to an enhanced metabolism and mitochondrial dysfunction in cancer cells. The escalated ROS generation in cancer cells contributes to the biochemical and molecular changes necessary for the tumor initiation, promotion and progression, as well as, tumor resistance to chemotherapy. Therefore, increased ROS in cancer cells may provide a unique opportunity to eliminate cancer cells via elevating ROS to highly toxic levels intracellularly, thereby, activating various ROS-induced cell death pathways, or inhibiting cancer cell resistance to chemotherapy. Such results can be achieved by using agents that either increase ROS generation, or inhibit antioxidant defense, or even a combination of both. In fact, a large variety of anticancer drugs, and some of those currently under clinical trials, effectively kill cancer cells and overcome drug resistance via enhancing ROS generation and/or impeding the antioxidant defense mechanism. This review focuses on our current understanding of the tumor promoting (tumorigenesis, angiogenesis, invasion and metastasis, and chemoresistance) and the tumor suppressive (apoptosis, autophagy, and necroptosis) functions of ROS, and highlights the potential mechanism(s) involved. It also sheds light on a very novel and an actively growing field of ROS-dependent cell death mechanism referred to as ferroptosis.
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Affiliation(s)
- Sehamuddin Galadari
- Cell Signaling Laboratory, Department of Biochemistry, College of Medicine and Health Sciences, UAE University, P.O. Box 17666, Al Ain, Abu Dhabi, UAE; Al Jalila Foundation Research Centre, P.O. Box 300100, Dubai, UAE.
| | - Anees Rahman
- Cell Signaling Laboratory, Department of Biochemistry, College of Medicine and Health Sciences, UAE University, P.O. Box 17666, Al Ain, Abu Dhabi, UAE.
| | - Siraj Pallichankandy
- Cell Signaling Laboratory, Department of Biochemistry, College of Medicine and Health Sciences, UAE University, P.O. Box 17666, Al Ain, Abu Dhabi, UAE.
| | - Faisal Thayyullathil
- Cell Signaling Laboratory, Department of Biochemistry, College of Medicine and Health Sciences, UAE University, P.O. Box 17666, Al Ain, Abu Dhabi, UAE.
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Redox Proteomics and Platelet Activation: Understanding the Redox Proteome to Improve Platelet Quality for Transfusion. Int J Mol Sci 2017; 18:ijms18020387. [PMID: 28208668 PMCID: PMC5343922 DOI: 10.3390/ijms18020387] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 01/27/2017] [Accepted: 02/07/2017] [Indexed: 12/13/2022] Open
Abstract
Blood banks use pathogen inactivation (PI) technologies to increase the safety of platelet concentrates (PCs). The characteristics of PI-treated PCs slightly differ from those of untreated PCs, but the underlying reasons are not well understood. One possible cause is the generation of oxidative stress during the PI process. This is of great interest since reactive oxygen species (ROS) act as second messengers in platelet functions. Furthermore, there are links between protein oxidation and phosphorylation, another mechanism that is critical for cell regulation. Current research efforts focus on understanding the underlying mechanisms and identifying new target proteins. Proteomics technologies represent powerful tools for investigating signaling pathways involving ROS and post-translational modifications such as phosphorylation, while quantitative techniques enable the comparison of the platelet resting state versus the stimulated state. In particular, redox cysteine is a key player in platelet activation upon stimulation by different agonists. This review highlights the experiments that have provided insights into the roles of ROS in platelet function and the implications for platelet transfusion, and potentially in diseases such as inflammation and platelet hyperactivity. The review also describes the implication of redox mechanism in platelet storage considerations.
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Moura Costa DD, Bozza DA, Rizzo LE, Garcia J, Costa MDM, de Oliveira Ribeiro CA. Characterization, specificity and sensibility of produced anti-Rhamdia quelen vitellogenin in Brazilian fish species. FISH PHYSIOLOGY AND BIOCHEMISTRY 2016; 42:1721-1732. [PMID: 27319005 DOI: 10.1007/s10695-016-0252-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 06/13/2016] [Indexed: 06/06/2023]
Abstract
Endocrine-disrupting chemicals (EDCs) are widespread used and can interfere on hormone regulation with adverse consequences for both biota and human. Vitellogenin (vtg) is a yolk precursor protein synthesized by the liver in response to estrogen. In order to characterize the vtg of tropical fish Rhamdia quelen and establish a molecular biomarker, adult male individuals were exposed to 17-β-estradiol (E2) for vtg induction and anti-R. quelen vtg polyclonal antibodies production. Vitellogenic female fish were used as positive control group. E2-induced vtg was characterized as a glycolipophosphoprotein of high molecular mass with peptide mass fingerprint very similar in E2-exposed male and vitellogenic female fish. A polyclonal serum containing anti-R. quelen vtg antibodies was produced and showed high specificity and sensibility to detect the vtg of three fish species: R. quelen, Piaractus mesopotamicus and Prochilodus lineatus. Wildlife and laboratory studies reported that EDCs released into the environment may alter the levels of plasma vtg in male fish, making this protein a valuable biomarker of xenoestrogens exposure. Then, we propose the use of anti-R. quelen vtg as a tool for biomonitoring studies and water quality assessment in Brazil and South American countries where the three fish species occur.
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Affiliation(s)
- Daniele Dietrich Moura Costa
- Laboratório de Toxicologia Celular, Departamento de Biologia Celular, Universidade Federal do Paraná, Rua Francisco H. dos Santos, PO Box 19031, Curitiba, PR, Brazil.
| | - Dandie Antunes Bozza
- Laboratório de Toxicologia Celular, Departamento de Biologia Celular, Universidade Federal do Paraná, Rua Francisco H. dos Santos, PO Box 19031, Curitiba, PR, Brazil
| | - Luiz Eduardo Rizzo
- Departamento de Patologia Básica, Universidade Federal do Paraná, PO Box 19031, Curitiba, PR, Brazil
| | - Juan Garcia
- Estação de Piscicultura Panamá, Paulo Lopes, SC, Brazil
| | - Michele Dietrich Moura Costa
- Departamento de Biologia Estrutural, Molecular e Genética, Universidade Estadual de Ponta Grossa, Ponta Grossa, PR, Brazil
| | - Ciro Alberto de Oliveira Ribeiro
- Laboratório de Toxicologia Celular, Departamento de Biologia Celular, Universidade Federal do Paraná, Rua Francisco H. dos Santos, PO Box 19031, Curitiba, PR, Brazil
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44
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Liebel S, Regina Grötzner S, Dietrich Moura Costa D, Antônio Ferreira Randi M, Alberto de Oliveira Ribeiro C, Filipak Neto F. Cylindrospermopsin effects on protein profile of HepG2 cells. Toxicol Mech Methods 2016; 26:554-563. [PMID: 27494769 DOI: 10.1080/15376516.2016.1216209] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Human hepatoma cells (HepG2) were exposed to purified cylindrospermopsin (CYN), a potent toxicant for eukaryotic cells produced by several cyanobacteria. Exposure to 10 μg l-1 of CYN for 24 h resulted in alteration of expression of 48 proteins, from which 26 were identified through mass spectrometry. Exposure to 100 μg l-1 of CYN for 24 h affected nuclear area and actin filaments intensity, which can be associated with cell proliferation and toxicity. The proteins are implicated in different biological processes: protein folding, xenobiotic efflux, antioxidant defense, energy metabolism and cell anabolism, cell signaling, tumorigenic potential, and cytoskeleton structure. Protein profile indicates that CYN exposure may lead to alteration of glucose metabolism that can be associated with the supply of useful energy to cells respond to chemical stress and proliferate. Increase of G protein-coupled receptors (GPCRs), heterogeneous nuclear ribonucleoproteins (hnRNP), and reactive oxygen species (ROS) levels observed in HepG2 cells can associate with cell proliferation and resistance. Increase of MRP3 and glutathione peroxidase can protect cells against some chemicals and ROS. CYN exposure also led to alteration of the expression of cytoskeleton proteins, which may be associated with cell proliferation and toxicity.
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Affiliation(s)
- Samuel Liebel
- a Departamento De Biologia Celular , Universidade Federal Do Paraná , Curitiba , Brazil
| | - Sonia Regina Grötzner
- a Departamento De Biologia Celular , Universidade Federal Do Paraná , Curitiba , Brazil
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45
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Wilson C, Terman JR, González-Billault C, Ahmed G. Actin filaments-A target for redox regulation. Cytoskeleton (Hoboken) 2016; 73:577-595. [PMID: 27309342 DOI: 10.1002/cm.21315] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 06/03/2016] [Accepted: 06/13/2016] [Indexed: 12/21/2022]
Abstract
Actin and its ability to polymerize into dynamic filaments is critical for the form and function of cells throughout the body. While multiple proteins have been characterized as affecting actin dynamics through noncovalent means, actin and its protein regulators are also susceptible to covalent modifications of their amino acid residues. In this regard, oxidation-reduction (Redox) intermediates have emerged as key modulators of the actin cytoskeleton with multiple different effects on cellular form and function. Here, we review work implicating Redox intermediates in post-translationally altering actin and discuss what is known regarding how these alterations affect the properties of actin. We also focus on two of the best characterized enzymatic sources of these Redox intermediates-the NADPH oxidase NOX and the flavoprotein monooxygenase MICAL-and detail how they have both been identified as altering actin, but share little similarity and employ different means to regulate actin dynamics. Finally, we discuss the role of these enzymes and redox signaling in regulating the actin cytoskeleton in vivo and highlight their importance for neuronal form and function in health and disease. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Carlos Wilson
- Department of Biology, Faculty of Sciences, Universidad De Chile, Las Palmeras 3425, Santiago, 7800024, Chile.,Center for Geroscience, Brain Health and Metabolism, Santiago, Chile
| | - Jonathan R Terman
- Department of Neuroscience, The University of Texas Southwestern Medical Center, Dallas, Texas, 75390. .,Department of Pharmacology, The University of Texas Southwestern Medical Center, Dallas, Texas, 75390.
| | - Christian González-Billault
- Department of Biology, Faculty of Sciences, Universidad De Chile, Las Palmeras 3425, Santiago, 7800024, Chile. .,Center for Geroscience, Brain Health and Metabolism, Santiago, Chile. .,The Buck Institute for Research on Aging, Novato, California 94945.
| | - Giasuddin Ahmed
- Department of Neuroscience, The University of Texas Southwestern Medical Center, Dallas, Texas, 75390.,Department of Pharmacology, The University of Texas Southwestern Medical Center, Dallas, Texas, 75390
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Tamma G, Valenti G. Evaluating the Oxidative Stress in Renal Diseases: What Is the Role for S-Glutathionylation? Antioxid Redox Signal 2016; 25:147-64. [PMID: 26972776 DOI: 10.1089/ars.2016.6656] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
SIGNIFICANCE Reactive oxygen species (ROS) have long been considered as toxic derivatives of aerobic metabolism displaying a harmful effect to living cells. Deregulation of redox homeostasis and production of excessive free radicals may contribute to the pathogenesis of kidney diseases. In line, oxidative stress increases in patients with renal dysfunctions due to a general increase of ROS paralleled by impaired antioxidant ability. RECENT ADVANCES Emerging evidence revealed that physiologically, ROS can act as signaling molecules interplaying with several transduction pathways such as proliferation, differentiation, and apoptosis. ROS can exert signaling functions by modulating, at different layers, protein oxidation since proteins have "cysteine switches" that can be reversibly reduced or oxidized, supporting the dynamic signaling regulation function. In this scenario, S-glutathionylation is a posttranslational modification involved in oxidative cellular response. CRITICAL ISSUES Although it is widely accepted that renal dysfunctions are often associated with altered redox signaling, the relative role of S-glutathionylation on the pathogenesis of specific renal diseases remains unclear and needs further investigations. In this review, we discuss the impact of ROS in renal health and diseases and the role of selective S-glutathionylation proteins potentially relevant to renal physiology. FUTURE DIRECTIONS The paucity of studies linking the reversible protein glutathionylation with specific renal disorders remains unmet. The growing number of S-glutathionylated proteins indicates that this is a fascinating area of research. In this respect, further studies on the association of reversible glutathionylation with renal diseases, characterized by oxidative stress, may be useful to develop new pharmacological molecules targeting protein S-glutathionylation. Antioxid. Redox Signal. 25, 147-164.
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Affiliation(s)
- Grazia Tamma
- 1 Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari , Bari, Italy .,2 Istituto Nazionale di Biostrutture e Biosistemi (I.N.B.B.) , Rome, Italy
| | - Giovanna Valenti
- 1 Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari , Bari, Italy .,2 Istituto Nazionale di Biostrutture e Biosistemi (I.N.B.B.) , Rome, Italy .,3 Centro di Eccellenza di Genomica in campo Biomedico ed Agrario (CEGBA) , Bari, Italy
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Sari-Hassoun M, Clement MJ, Hamdi I, Bollot G, Bauvais C, Joshi V, Toma F, Burgo A, Cailleret M, Rosales-Hernández MC, Macias Pérez ME, Chabane-Sari D, Curmi PA. Cucurbitacin I elicits the formation of actin/phospho-myosin II co-aggregates by stimulation of the RhoA/ROCK pathway and inhibition of LIM-kinase. Biochem Pharmacol 2015; 102:45-63. [PMID: 26707799 DOI: 10.1016/j.bcp.2015.12.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 12/15/2015] [Indexed: 12/11/2022]
Abstract
Cucurbitacins are cytotoxic triterpenoid sterols isolated from plants. One of their earliest cellular effect is the aggregation of actin associated with blockage of cell migration and division that eventually lead to apoptosis. We unravel here that cucurbitacin I actually induces the co-aggregation of actin with phospho-myosin II. This co-aggregation most probably results from the stimulation of the Rho/ROCK pathway and the direct inhibition of the LIMKinase. We further provide data that suggest that the formation of these co-aggregates is independent of a putative pro-oxidant status of cucurbitacin I. The results help to understand the impact of cucurbitacins on signal transduction and actin dynamics and open novel perspectives to use it as drug candidates for cancer research.
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Affiliation(s)
- Meryem Sari-Hassoun
- Institut National de la Santé et de la Recherche Médicale, UMR1204, Laboratoire Structure-Activité des Biomolécules Normales et Pathologiques, Université d'Evry-Val d'Essonne, Evry 91025, France; Laboratoire des Produits Naturels, LAPRONA, Université Abou Bekr Belkaid, Tlemcen 13000, Algeria
| | - Marie-Jeanne Clement
- Institut National de la Santé et de la Recherche Médicale, UMR1204, Laboratoire Structure-Activité des Biomolécules Normales et Pathologiques, Université d'Evry-Val d'Essonne, Evry 91025, France
| | - Imane Hamdi
- Institut National de la Santé et de la Recherche Médicale, UMR1204, Laboratoire Structure-Activité des Biomolécules Normales et Pathologiques, Université d'Evry-Val d'Essonne, Evry 91025, France
| | | | | | - Vandana Joshi
- Institut National de la Santé et de la Recherche Médicale, UMR1204, Laboratoire Structure-Activité des Biomolécules Normales et Pathologiques, Université d'Evry-Val d'Essonne, Evry 91025, France
| | - Flavio Toma
- Institut National de la Santé et de la Recherche Médicale, UMR1204, Laboratoire Structure-Activité des Biomolécules Normales et Pathologiques, Université d'Evry-Val d'Essonne, Evry 91025, France
| | - Andrea Burgo
- Institut National de la Santé et de la Recherche Médicale, UMR1204, Laboratoire Structure-Activité des Biomolécules Normales et Pathologiques, Université d'Evry-Val d'Essonne, Evry 91025, France
| | - Michel Cailleret
- Institut National de la Santé et de la Recherche Médicale, UMR1204, Laboratoire Structure-Activité des Biomolécules Normales et Pathologiques, Université d'Evry-Val d'Essonne, Evry 91025, France
| | - Martha Cecilia Rosales-Hernández
- Laboratorio de Biofísica y Biocatalisis, Sección de Estudios de Posgrado e Investigación de la Escuela Superior de Medicina del Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Casco de Santo Tomás, México D.F. 11340, México
| | - Martha Edith Macias Pérez
- Laboratorio de Biofísica y Biocatalisis, Sección de Estudios de Posgrado e Investigación de la Escuela Superior de Medicina del Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Casco de Santo Tomás, México D.F. 11340, México
| | - Daoudi Chabane-Sari
- Laboratoire des Produits Naturels, LAPRONA, Université Abou Bekr Belkaid, Tlemcen 13000, Algeria
| | - Patrick A Curmi
- Institut National de la Santé et de la Recherche Médicale, UMR1204, Laboratoire Structure-Activité des Biomolécules Normales et Pathologiques, Université d'Evry-Val d'Essonne, Evry 91025, France.
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48
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Kalinina EV, Chernov NN, Novichkova MD. Role of glutathione, glutathione transferase, and glutaredoxin in regulation of redox-dependent processes. BIOCHEMISTRY (MOSCOW) 2015; 79:1562-83. [PMID: 25749165 DOI: 10.1134/s0006297914130082] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Over the last decade fundamentally new features have been revealed for the participation of glutathione and glutathione-dependent enzymes (glutathione transferase and glutaredoxin) in cell proliferation, apoptosis, protein folding, and cell signaling. Reduced glutathione (GSH) plays an important role in maintaining cellular redox status by participating in thiol-disulfide exchange, which regulates a number of cell functions including gene expression and the activity of individual enzymes and enzyme systems. Maintaining optimum GSH/GSSG ratio is essential to cell viability. Decrease in the ratio can serve as an indicator of damage to the cell redox status and of changes in redox-dependent gene regulation. Disturbance of intracellular GSH balance is observed in a number of pathologies including cancer. Consequences of inappropriate GSH/GSSG ratio include significant changes in the mechanism of cellular redox-dependent signaling controlled both nonenzymatically and enzymatically with the participation of isoforms of glutathione transferase and glutaredoxin. This review summarizes recent data on the role of glutathione, glutathione transferase, and glutaredoxin in the regulation of cellular redox-dependent processes.
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Affiliation(s)
- E V Kalinina
- Peoples' Friendship University of Russia, Moscow, 117198, Russia.
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49
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Breitkreuz M, Hamdani N. A change of heart: oxidative stress in governing muscle function? Biophys Rev 2015; 7:321-341. [PMID: 28510229 DOI: 10.1007/s12551-015-0175-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Accepted: 06/08/2015] [Indexed: 02/07/2023] Open
Abstract
Redox/cysteine modification of proteins that regulate calcium cycling can affect contraction in striated muscles. Understanding the nature of these modifications would present the possibility of enhancing cardiac function through reversible cysteine modification of proteins, with potential therapeutic value in heart failure with diastolic dysfunction. Both heart failure and muscular dystrophy are characterized by abnormal redox balance and nitrosative stress. Recent evidence supports the synergistic role of oxidative stress and inflammation in the progression of heart failure with preserved ejection fraction, in concert with endothelial dysfunction and impaired nitric oxide-cyclic guanosine monophosphate-protein kinase G signalling via modification of the giant protein titin. Although antioxidant therapeutics in heart failure with diastolic dysfunction have no marked beneficial effects on the outcome of patients, it, however, remains critical to the understanding of the complex interactions of oxidative/nitrosative stress with pro-inflammatory mechanisms, metabolic dysfunction, and the redox modification of proteins characteristic of heart failure. These may highlight novel approaches to therapeutic strategies for heart failure with diastolic dysfunction. In this review, we provide an overview of oxidative stress and its effects on pathophysiological pathways. We describe the molecular mechanisms driving oxidative modification of proteins and subsequent effects on contractile function, and, finally, we discuss potential therapeutic opportunities for heart failure with diastolic dysfunction.
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Affiliation(s)
- Martin Breitkreuz
- Department of Cardiovascular Physiology, Ruhr University Bochum, MA 3/56, 44780, Bochum, Germany
| | - Nazha Hamdani
- Department of Cardiovascular Physiology, Ruhr University Bochum, MA 3/56, 44780, Bochum, Germany.
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Jalali BM, Bogacki M, Dietrich M, Likszo P, Wasielak M. Proteomic analysis of porcine endometrial tissue during peri-implantation period reveals altered protein abundance. J Proteomics 2015; 125:76-88. [PMID: 25976747 DOI: 10.1016/j.jprot.2015.05.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Revised: 04/27/2015] [Accepted: 05/06/2015] [Indexed: 11/16/2022]
Abstract
UNLABELLED In mammals, successful pregnancy depends upon the readiness of uterus for implantation, followed by correct communication between the endometrium and the developing conceptus. The objective of this study was to elucidate changes in protein abundance associated with progression of estrous cycle and pregnancy from Day 9 to Day 12. We analyzed porcine endometrial tissue lysates by 2D-DIGE. Abundance of several proteins was altered depending upon the pregnancy status of animals. MALDI-TOF/TOF was used to identify a number of these proteins. Endometrial proteins that increased from Day 9 to Day 12 of cycle included annexin A4, beta-actin, apolipoprotein, ceruloplasmin and afamin. Changes in protein abundances associated with conceptus secreted factors, including haptoglobin, prolyl-4-hydroxylase, aldose-reductase and transthyretin, were also observed. Functional analysis revealed that endometrial proteins with altered abundance on Day 12 irrespective of the reproductive status were related to growth and remodeling, acute phase response and free radical scavenging, whereas transport and small molecule biochemistry were the functions activated in the pregnant endometrium as compared to the cyclic endometrium. These data provide information on dynamic physiological processes associated with uterine endometrial function of the cyclic and pregnant endometrium during period of maternal recognition of pregnancy in pigs and may potentially demonstrate a protein profile associated with successful pregnancy. BIOLOGICAL SIGNIFICANCE In pigs, the fertility rates are generally very high but the early embryonic loss that occurs during the second and third weeks of gestation critically affects the potential litter size. Temporal changes that take place in the uterine environment during the period of early pregnancy in pigs and a cross-talk between the uterus and the embryo play an important role in embryonic survival and successful pregnancy. A better understanding of the molecular changes associated with these processes will pave way for understanding of endometrial functions and help towards increasing embryo survival. In this study, we present a 2D-DIGE based analysis of changes in porcine endometrial proteome that are associated with progression of cycle and progression of pregnancy. The network analysis of the results clearly revealed the pathways that are involved in rendering the endometrium receptive to the presence of embryo and also the changes that are result of molecular communication between the endometrium and the conceptuses. This comprehensive identification of proteomic changes in the porcine endometrium could be a foundation for targeted studies of proteins and pathways potentially involved in abnormal endometrial receptivity, placentation and embryo loss.
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Affiliation(s)
- Beenu Moza Jalali
- Institute of Animal Reproduction and Food Research of Polish Academy of Sciences, Tuwima 10, 10-748 Olsztyn, Poland.
| | - Marek Bogacki
- Institute of Animal Reproduction and Food Research of Polish Academy of Sciences, Tuwima 10, 10-748 Olsztyn, Poland
| | - Mariola Dietrich
- Institute of Animal Reproduction and Food Research of Polish Academy of Sciences, Tuwima 10, 10-748 Olsztyn, Poland
| | - Pawel Likszo
- Institute of Animal Reproduction and Food Research of Polish Academy of Sciences, Tuwima 10, 10-748 Olsztyn, Poland
| | - Marta Wasielak
- Institute of Animal Reproduction and Food Research of Polish Academy of Sciences, Tuwima 10, 10-748 Olsztyn, Poland
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