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Bel’skaya LV, Dyachenko EI. Oxidative Stress in Breast Cancer: A Biochemical Map of Reactive Oxygen Species Production. Curr Issues Mol Biol 2024; 46:4646-4687. [PMID: 38785550 PMCID: PMC11120394 DOI: 10.3390/cimb46050282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 05/08/2024] [Accepted: 05/11/2024] [Indexed: 05/25/2024] Open
Abstract
This review systematizes information about the metabolic features of breast cancer directly related to oxidative stress. It has been shown those redox changes occur at all levels and affect many regulatory systems in the human body. The features of the biochemical processes occurring in breast cancer are described, ranging from nonspecific, at first glance, and strictly biochemical to hormone-induced reactions, genetic and epigenetic regulation, which allows for a broader and deeper understanding of the principles of oncogenesis, as well as maintaining the viability of cancer cells in the mammary gland. Specific pathways of the activation of oxidative stress have been studied as a response to the overproduction of stress hormones and estrogens, and specific ways to reduce its negative impact have been described. The diversity of participants that trigger redox reactions from different sides is considered more fully: glycolytic activity in breast cancer, and the nature of consumption of amino acids and metals. The role of metals in oxidative stress is discussed in detail. They can act as both co-factors and direct participants in oxidative stress, since they are either a trigger mechanism for lipid peroxidation or capable of activating signaling pathways that affect tumorigenesis. Special attention has been paid to the genetic and epigenetic regulation of breast tumors. A complex cascade of mechanisms of epigenetic regulation is explained, which made it possible to reconsider the existing opinion about the triggers and pathways for launching the oncological process, the survival of cancer cells and their ability to localize.
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Affiliation(s)
- Lyudmila V. Bel’skaya
- Biochemistry Research Laboratory, Omsk State Pedagogical University, 644099 Omsk, Russia;
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Scirè A, Cianfruglia L, Minnelli C, Romaldi B, Laudadio E, Galeazzi R, Antognelli C, Armeni T. Glyoxalase 2: Towards a Broader View of the Second Player of the Glyoxalase System. Antioxidants (Basel) 2022; 11:2131. [PMID: 36358501 PMCID: PMC9686547 DOI: 10.3390/antiox11112131] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 10/25/2022] [Accepted: 10/26/2022] [Indexed: 07/30/2023] Open
Abstract
Glyoxalase 2 is a mitochondrial and cytoplasmic protein belonging to the metallo-β-lactamase family encoded by the hydroxyacylglutathione hydrolase (HAGH) gene. This enzyme is the second enzyme of the glyoxalase system that is responsible for detoxification of the α-ketothaldehyde methylglyoxal in cells. The two enzymes glyoxalase 1 (Glo1) and glyoxalase 2 (Glo2) form the complete glyoxalase pathway, which utilizes glutathione as cofactor in eukaryotic cells. The importance of Glo2 is highlighted by its ubiquitous distribution in prokaryotic and eukaryotic organisms. Its function in the system has been well defined, but in recent years, additional roles are emerging, especially those related to oxidative stress. This review focuses on Glo2 by considering its genetics, molecular and structural properties, its involvement in post-translational modifications and its interaction with specific metabolic pathways. The purpose of this review is to focus attention on an enzyme that, from the most recent studies, appears to play a role in multiple regulatory pathways that may be important in certain diseases such as cancer or oxidative stress-related diseases.
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Affiliation(s)
- Andrea Scirè
- Department of Life and Environmental Sciences, Polytechnic University of Marche, 60131 Ancona, Italy
| | - Laura Cianfruglia
- Department of Clinical Sciences, Polytechnic University of Marche, 60126 Ancona, Italy
| | - Cristina Minnelli
- Department of Life and Environmental Sciences, Polytechnic University of Marche, 60131 Ancona, Italy
| | - Brenda Romaldi
- Department of Clinical Sciences, Polytechnic University of Marche, 60126 Ancona, Italy
| | - Emiliano Laudadio
- Department of Science and Engineering of Materials, Environment and Urban Planning, Polytechnic University of Marche, 60131 Ancona, Italy
| | - Roberta Galeazzi
- Department of Life and Environmental Sciences, Polytechnic University of Marche, 60131 Ancona, Italy
| | - Cinzia Antognelli
- Department of Medicine and Surgery, University of Perugia, 06132 Perugia, Italy
| | - Tatiana Armeni
- Department of Clinical Sciences, Polytechnic University of Marche, 60126 Ancona, Italy
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Santini SJ, Tarantino G, Iezzi A, Alisi A, Balsano C. Copper-catalyzed dicarbonyl stress in NAFLD mice: protective effects of Oleuropein treatment on liver damage. Nutr Metab (Lond) 2022; 19:9. [PMID: 35148806 PMCID: PMC8832663 DOI: 10.1186/s12986-022-00641-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 12/22/2021] [Indexed: 11/17/2022] Open
Abstract
Background Nonalcoholic fatty liver disease (NAFLD) or more appropriately, metabolic associated fatty liver disease (MAFLD), is the hepatic manifestation of metabolic syndrome. An imbalance of copper homeostasis has been described in the progression of NAFLD/MAFLD toward NASH/MASH. We were interested in understanding whether the chelating activity of Oleuropein (Ole) was able to improve the copper accumulation and the related pro-oxidant and glycative damage in the liver of mice fed HFD.
Methods Twelve C57BL/6J mice fed normal diet (ND) or high-fat diet (HFD) for 16 weeks and then thirty two female and male mice fed ND or HFD for 8 weeks adding Ole for the following 8 weeks were studied. Results Altered expression of copper-trafficking genes and proteins (CTR1, CTR2, ATP7B, COX17, CCS, and ATOX1) induced imbalance of copper homeostasis combined with an increase in dicarbonyl stress in the liver of HFD fed mice. Interestingly enough, glyoxalase system was improved by Ole administration and the Ole related protective effects differ in the two sexes of mice. Conclusions Our study highlights the role of the dicarbonyl stress in the pathogenesis of NAFLD and suggests Ole as a natural copper chelator to prevent the liver damage induced by methyglyoxal pathway derangement. Supplementary Information The online version contains supplementary material available at 10.1186/s12986-022-00641-z.
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Affiliation(s)
- Silvano Junior Santini
- Department of Life, Health and Environmental Sciences MESVA, University of L'Aquila, Piazza S. Salvatore Tommasi 1, 67100, Coppito, L'Aquila, Italy.,Francesco Balsano Foundation, Via Giovanni Battista Martini 6, 00198, Rome, Italy
| | - Giovanni Tarantino
- Department of Clinical Medicine and Surgery, Federico II University Medical School of Naples, Naples, Italy
| | - Antonella Iezzi
- Department of Life, Health and Environmental Sciences MESVA, University of L'Aquila, Piazza S. Salvatore Tommasi 1, 67100, Coppito, L'Aquila, Italy
| | - Anna Alisi
- Research Unit of Molecular Genetics of Complex Phenotypes, Bambino Gesù Children's Hospital, IRCCS, Viale San Paolo 15, 00146, Rome, Italy.
| | - Clara Balsano
- Department of Life, Health and Environmental Sciences MESVA, University of L'Aquila, Piazza S. Salvatore Tommasi 1, 67100, Coppito, L'Aquila, Italy. .,Francesco Balsano Foundation, Via Giovanni Battista Martini 6, 00198, Rome, Italy.
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Dicarbonyl Stress and S-Glutathionylation in Cerebrovascular Diseases: A Focus on Cerebral Cavernous Malformations. Antioxidants (Basel) 2020; 9:antiox9020124. [PMID: 32024152 PMCID: PMC7071005 DOI: 10.3390/antiox9020124] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 01/25/2020] [Accepted: 01/29/2020] [Indexed: 02/07/2023] Open
Abstract
Dicarbonyl stress is a dysfunctional state consisting in the abnormal accumulation of reactive α-oxaldehydes leading to increased protein modification. In cells, post-translational changes can also occur through S-glutathionylation, a highly conserved oxidative post-translational modification consisting of the formation of a mixed disulfide between glutathione and a protein cysteine residue. This review recapitulates the main findings supporting a role for dicarbonyl stress and S-glutathionylation in the pathogenesis of cerebrovascular diseases, with specific emphasis on cerebral cavernous malformations (CCM), a vascular disease of proven genetic origin that may give rise to various clinical signs and symptoms at any age, including recurrent headaches, seizures, focal neurological deficits, and intracerebral hemorrhage. A possible interplay between dicarbonyl stress and S-glutathionylation in CCM is also discussed.
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New insight into glycation levels and pelvic organ prolapse - A combination of clinical and biochemical studies. Eur J Obstet Gynecol Reprod Biol 2018; 231:129-135. [PMID: 30368090 DOI: 10.1016/j.ejogrb.2018.10.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Accepted: 10/02/2018] [Indexed: 11/23/2022]
Abstract
OBJECTIVES Pelvic Organ Prolapse (POP) is a multifactorial disease with ageing as a most notable risk factor. Advanced Glycation End products (AGEs), biochemical markers of ageing are increased in prolapsed tissues. It is however unclear if AGEs are a cause or outcome of prolapse. By combining analysis of clinically relevant parameters in women with prolapse and POP tissues biochemically, this study aims to bridge the gap between existing clinical and biochemical research on the cause of POP. METHODS Following national and local ethical approval, a case study of 49 POP and 16 control tissues was carried out. The AGEs' marker, pentosidine, was quantified via High Performance Liquid Chromatography. Oestrogen (ER-α) and glyoxalase I (GLO-I) expression of the tissues were studied. Age, obstetric factors and co-morbidities (hypertension, smoking, diabetes mellitus) were recorded and compared with biochemical findings. RESULTS Lower expressions of ER-α and GLO-I were observed in POP tissues in the comparison to the control, which also had significantly higher pentosidine content. Prolapsed tissue population had more notable age-dependent increase in pentosidine with significant differences between the 6th and 7th decade. Hypertension and smoking, which were more prevalent amongst women with POP, were associated with higher amounts of pentosidine in the vaginal tissues. CONCLUSION In the light of recent research regarding the relationship between POP and glycation, the present study shows that age-related oestrogen decline is a key player in glycation accumulation in prolapsed vaginal tissues and that glycation is a cause rather than an effect of prolapse. Hypertension is a significant POP association which is linked to high glycation level.
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Bellahcène A, Nokin MJ, Castronovo V, Schalkwijk C. Methylglyoxal-derived stress: An emerging biological factor involved in the onset and progression of cancer. Semin Cancer Biol 2018; 49:64-74. [DOI: 10.1016/j.semcancer.2017.05.010] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 05/18/2017] [Accepted: 05/22/2017] [Indexed: 02/07/2023]
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Antognelli C, Talesa VN. Glyoxalases in Urological Malignancies. Int J Mol Sci 2018; 19:ijms19020415. [PMID: 29385039 PMCID: PMC5855637 DOI: 10.3390/ijms19020415] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 01/25/2018] [Accepted: 01/26/2018] [Indexed: 12/16/2022] Open
Abstract
Urological cancers include a spectrum of malignancies affecting organs of the reproductive and/or urinary systems, such as prostate, kidney, bladder, and testis. Despite improved primary prevention, detection and treatment, urological cancers are still characterized by an increasing incidence and mortality worldwide. While advances have been made towards understanding the molecular bases of these diseases, a complete understanding of the pathological mechanisms remains an unmet research goal that is essential for defining safer pharmacological therapies and prognostic factors, especially for the metastatic stage of these malignancies for which no effective therapies are currently being used. Glyoxalases, consisting of glyoxalase 1 (Glo1) and glyoxalase 2 (Glo2), are enzymes that catalyze the glutathione-dependent metabolism of cytotoxic methylglyoxal (MG), thus protecting against cellular damage and apoptosis. They are generally overexpressed in numerous cancers as a survival strategy by providing a safeguard through enhancement of MG detoxification. Increasing evidence suggests that glyoxalases, especially Glo1, play an important role in the initiation and progression of urological malignancies. In this review, we highlight the critical role of glyoxalases as regulators of tumorigenesis in the prostate through modulation of various critical signaling pathways, and provide an overview of the current knowledge on glyoxalases in bladder, kidney and testis cancers. We also discuss the promise and challenges for Glo1 inhibitors as future anti-prostate cancer (PCa) therapeutics and the potential of glyoxalases as biomarkers for PCa diagnosis.
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Affiliation(s)
- Cinzia Antognelli
- Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy.
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Skin advanced glycation content reflects vaginal tissue glycation level in relation to pregnancy. Med Hypotheses 2017; 109:84-87. [PMID: 29150302 DOI: 10.1016/j.mehy.2017.09.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 09/05/2017] [Accepted: 09/18/2017] [Indexed: 11/20/2022]
Abstract
A few studies have revealed that the advanced glycation content of the vaginal wall in pelvic organ prolapse tissues is elevated. This elevation makes advanced glycation a significant association with the disease. Early detection of vaginal wall glycation could therefore be relevant in the prevention and management of pelvic organ prolapse. A vaginal wall biopsy to detect this would be ideal, but is invasive. Therefore the use of a more accessible organ to access, such as skin, would be beneficial. Our previous independent study suggests that conditions such as pregnancy, can induce a change in the vaginal tissues' glycation content. The aim of this study was to assess whether the skin glycation undergoes similar changes as observed in vaginal tissue glycation in the same subjects in order to prove the hypothesis that skin advanced glycation content can predict vaginal tissue glycation. A rat model was used. The vaginal tissues from non-pregnant and E15-E18 pregnant rats and skin tissues from the same rats were taken for the measurement of advanced glycation content. The glycation marker, pentosidine, was quantified by a high performance liquid chromatography. Our results demonstrated that glycation content in vaginal wall tissues from pregnant rats was lower than the tissues from non-pregnant ones, and a strong positive association between skin and vaginal wall pentosidine level was observed. We conclude that skin pentosidine is reflective of vaginal wall pentosidine. Skin glycation may therefore be a potential tool in the prediction and management of pelvic organ prolapse.
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Advanced glycation products’ levels and mechanical properties of vaginal tissue in pregnancy. Eur J Obstet Gynecol Reprod Biol 2017; 214:78-85. [DOI: 10.1016/j.ejogrb.2017.04.037] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 04/18/2017] [Accepted: 04/19/2017] [Indexed: 11/21/2022]
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Accumulation of the advanced glycation end product carboxymethyl lysine in breast cancer is positively associated with estrogen receptor expression and unfavorable prognosis in estrogen receptor-negative cases. Histochem Cell Biol 2016; 147:625-634. [PMID: 28012130 DOI: 10.1007/s00418-016-1534-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/09/2016] [Indexed: 12/13/2022]
Abstract
Advanced glycation end products (AGEs) accumulate as a result of high concentrations of reactive aldehydes, oxidative stress, and insufficient degradation of glycated proteins. AGEs are therefore accepted biomarkers for aging, diabetes, and several degenerative diseases. Due to the Warburg effect and increased oxidative stress, cancer cells frequently accumulate significant amounts of AGEs. As the accumulation of AGEs may reflect the metabolic state and receptor signaling, we evaluated the potential prognostic and predictive value of this biomarker. We used immunohistochemistry to determine the AGE Nε-carboxymethyl lysine (CML) in 213 mammary carcinoma samples and Western blotting to detect AGEs in cell cultures. Whereas no significant correlation between hormone receptor status and CML was observed in cell lines, CML accumulation in tumors was positively correlated with the presence of estrogen receptor alpha, the postmenopausal state, and age. A negative correlation was found for grade III carcinomas and triple-negative cases. In a retrospective Kaplan-Meier survival analysis, there was a statistical trend that high CML accumulation correlated with a more favorable prognosis (relapse-free survival, RFS) under tamoxifen treatment (p = 0.1). In estrogen receptor-negative cases, the high CML content was significantly correlated with an unfavorable outcome (RFS) of chemotherapy (p = 0.046). CML is a therefore a potentially predictive marker for the treatment of breast cancer patients with tamoxifen or chemotherapy.
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Tesarova P, Kalousova M, Zima T, Tesar V. HMGB1, S100 proteins and other RAGE ligands in cancer - markers, mediators and putative therapeutic targets. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2016; 160:1-10. [DOI: 10.5507/bp.2016.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Accepted: 01/22/2016] [Indexed: 12/30/2022] Open
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Guo Y, Zhang Y, Yang X, Lu P, Yan X, Xiao F, Zhou H, Wen C, Shi M, Lu J, Meng QH. Effects of methylglyoxal and glyoxalase I inhibition on breast cancer cells proliferation, invasion, and apoptosis through modulation of MAPKs, MMP9, and Bcl-2. Cancer Biol Ther 2015; 17:169-80. [PMID: 26618552 DOI: 10.1080/15384047.2015.1121346] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Emerging evidence indicates that methylglyoxal (MG) can inhibit tumorigenesis. Glyoxalase I (GLOI), a MG degradation enzyme, is implicated in the progression of human malignancies. However, little is known about the roles of MG and GLOI in breast cancer. Our purpose was to investigate the anticancer effects of MG and inhibition of GLOI on breast cancer cells and the underlying mechanisms of these effects. Our findings demonstrate that cell viability, migration, invasion, colony formation, and tubule formation were significantly restrained by addition of MG or inhibition of GLOI, while apoptosis was significantly increased. Furthermore, the expression of p-JNK, p-ERK, and p-p38 was markedly upregulated by addition of MG or inhibition of GLOI, whereas MMP-9 and Bcl-2 expression levels were dramatically decreased. These effects were augmented by combined treatment with MG and inhibition of GLOI. Collectively, these data indicate that MG or inhibition of GLOI induces anticancer effects in breast cancer cells and that these effects are potentiated by combination of the 2. These effects were modulated by activation of the MAPK family and downregulation of Bcl-2 and MMP-9. These findings may provide a new approach for the treatment of breast cancer.
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Affiliation(s)
- Yi Guo
- a Key Laboratory of Laboratory Medicine, Ministry of Education of China, Zhejiang Provincial Key Laboratory of Medical Genetics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University , Wenzhou , China
| | - Yuning Zhang
- a Key Laboratory of Laboratory Medicine, Ministry of Education of China, Zhejiang Provincial Key Laboratory of Medical Genetics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University , Wenzhou , China
| | - Xunjun Yang
- a Key Laboratory of Laboratory Medicine, Ministry of Education of China, Zhejiang Provincial Key Laboratory of Medical Genetics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University , Wenzhou , China
| | - Panpan Lu
- a Key Laboratory of Laboratory Medicine, Ministry of Education of China, Zhejiang Provincial Key Laboratory of Medical Genetics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University , Wenzhou , China
| | - Xijuan Yan
- a Key Laboratory of Laboratory Medicine, Ministry of Education of China, Zhejiang Provincial Key Laboratory of Medical Genetics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University , Wenzhou , China
| | - Fanglan Xiao
- a Key Laboratory of Laboratory Medicine, Ministry of Education of China, Zhejiang Provincial Key Laboratory of Medical Genetics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University , Wenzhou , China
| | - Huaibin Zhou
- a Key Laboratory of Laboratory Medicine, Ministry of Education of China, Zhejiang Provincial Key Laboratory of Medical Genetics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University , Wenzhou , China
| | - Chaowei Wen
- a Key Laboratory of Laboratory Medicine, Ministry of Education of China, Zhejiang Provincial Key Laboratory of Medical Genetics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University , Wenzhou , China
| | - Mengru Shi
- a Key Laboratory of Laboratory Medicine, Ministry of Education of China, Zhejiang Provincial Key Laboratory of Medical Genetics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University , Wenzhou , China
| | - Jianxin Lu
- a Key Laboratory of Laboratory Medicine, Ministry of Education of China, Zhejiang Provincial Key Laboratory of Medical Genetics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University , Wenzhou , China
| | - Qing H Meng
- b Department of Laboratory Medicine , The University of Texas MD Anderson Cancer Center , Houston , TX , USA
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Zhang LQ, Zhang XN, Gao Y, Ma XB, Dai LS, Jiang H, Yuan B, Zhang JB. Identification of differentially expressed proteins in the ovaries of menopausal women. Arch Gynecol Obstet 2014; 290:1179-86. [PMID: 25037597 DOI: 10.1007/s00404-014-3357-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2014] [Accepted: 07/02/2014] [Indexed: 10/24/2022]
Abstract
PURPOSE This study investigated proteins differentially expressed in the ovaries of menopausal women in comparison to childbearing women. METHODS Differential protein expression was screened by difference gel electrophoresis and 2-D SDS-PAGE. Four differentially expressed proteins were excised manually, identified by mass spectrometry and confirmed by immunoblot and immunohistochemistry. RESULTS The four proteins were identified as serum amyloid P, heat shock protein 27, Glyoxalase I and Ubiquitin carboxy-terminal hydrolase. Serum amyloid P expression was significantly up-regulated in the ovaries of menopausal women by immunoblot analysis (p < 0.05), Glyoxalase I and Ubiquitin carboxy-terminal hydrolase displayed an altered expression pattern, with higher expression in the atretic follicles of menopausal women. Weak Glyoxalase I and Ubiquitin carboxy-terminal hydrolase were observed in the granulosa and theca cells of the follicles of childbearing women. Heat shock protein 27 and serum amyloid P were clearly observed in the atretic follicles of menopausal women, while their expression was restricted to the theca cells and cytoplasm of primordial follicles in the ovaries of childbearing women. All four proteins were predominantly expressed in the atretic follicles of menopausal women. CONCLUSIONS These data suggest that the identified proteins may play a role in the regulation of follicle atresia in menopausal women, although their functions and mechanism warrant further investigation.
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Affiliation(s)
- Li-Qun Zhang
- College of Animal Science, Jilin University, 5333 Xi'an Road, Changchun, 130062, Jilin, China
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Antognelli C, Palumbo I, Aristei C, Talesa VN. Glyoxalase I inhibition induces apoptosis in irradiated MCF-7 cells via a novel mechanism involving Hsp27, p53 and NF-κB. Br J Cancer 2014; 111:395-406. [PMID: 24918814 PMCID: PMC4102940 DOI: 10.1038/bjc.2014.280] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 04/24/2014] [Accepted: 04/30/2014] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Glyoxalase I (GI) is a cellular defence enzyme involved in the detoxification of methylglyoxal (MG), a cytotoxic byproduct of glycolysis, and MG-derived advanced glycation end products (AGEs). Argpyrimidine (AP), one of the major AGEs coming from MG modifications of proteins arginines, is a pro-apoptotic agent. Radiotherapy is an important modality widely used in cancer treatment. Exposure of cells to ionising radiation (IR) results in a number of complex biological responses, including apoptosis. The present study was aimed at investigating whether, and through which mechanism, GI was involved in IR-induced apoptosis. METHODS Apoptosis, by TUNEL assay, transcript and protein levels or enzymatic activity, by RT-PCR, western blot and spectrophotometric methods, respectively, were evaluated in irradiated MCF-7 breast cancer cells, also in experiments with appropriate inhibitors or using small interfering RNA. RESULTS Ionising radiation induced a dramatic reactive oxygen species (ROS)-mediated inhibition of GI, leading to AP-modified Hsp27 protein accumulation that, in a mechanism involving p53 and NF-κB, triggered an apoptotic mitochondrial pathway. Inhibition of GI occurred at both functional and transcriptional levels, the latter occurring via ERK1/2 MAPK and ERα modulation. CONCLUSIONS Glyoxalase I is involved in the IR-induced MCF-7 cell mitochondrial apoptotic pathway via a novel mechanism involving Hsp27, p53 and NF-κB.
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Affiliation(s)
- C Antognelli
- Department of Experimental Medicine, University of Perugia, Sant'Andrea delle Fratte, 06132 Perugia, Italy
| | - I Palumbo
- Radiation Oncology Section, University of Perugia, Sant'Andrea delle Fratte, 06132 Perugia, Italy
| | - C Aristei
- Radiation Oncology Section, University of Perugia, Sant'Andrea delle Fratte, 06132 Perugia, Italy
| | - V N Talesa
- Department of Experimental Medicine, University of Perugia, Sant'Andrea delle Fratte, 06132 Perugia, Italy
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Kandaraki E, Chatzigeorgiou A, Piperi C, Palioura E, Palimeri S, Korkolopoulou P, Koutsilieris M, Papavassiliou AG. Reduced ovarian glyoxalase-I activity by dietary glycotoxins and androgen excess: a causative link to polycystic ovarian syndrome. Mol Med 2012; 18:1183-9. [PMID: 22859292 DOI: 10.2119/molmed.2012.00293] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Accepted: 07/31/2012] [Indexed: 11/06/2022] Open
Abstract
Glyoxalase detoxification system composed of glyoxalase (GLO)-I and GLO-II is ubiquitously expressed and implicated in the protection against cellular damage because of cytotoxic metabolites such as advanced glycation end products (AGEs). Recently, ovarian tissue has emerged as a new target of excessive AGE deposition and has been associated with either a high AGE diet in experimental animals or hyperandrogenic disorders such as polycystic ovarian syndrome (PCOS) in humans. This study was designed to investigate the impact of dietary AGEs and androgens in rat ovarian GLO-I activity of normal nonandrogenized (NAN, group A, n = 18) and androgenized prepubertal (AN) rats (group B, n = 29). Both groups were further randomly assigned, either to a high-AGE (HA) or low-AGE (LA) diet for 3 months. The activity of ovarian GLO-I was significantly reduced in normal NAN animals fed an HA diet compared with an LA diet (p = 0.006). Furthermore, GLO-I activity was markedly reduced in AN animals compared with NAN (p ≤ 0.001) when fed with the corresponding diet type. In addition, ovarian GLO-I activity was positively correlated with the body weight gain (r(s) = 0.533, p < 0.001), estradiol (r(s) = 0.326, p = 0.033) and progesterone levels (r(s) = 0.500, p < 0.001). A negative correlation was observed between GLO-I activity and AGE expression in the ovarian granulosa cell layer of all groups with marginal statistical significance (r(s) = -0.263, p = 0.07). The present data demonstrate that ovarian GLO-I activity may be regulated by dietary composition and androgen levels. Modification of ovarian GLO-I activity, observed for the first time in this androgenized prepubertal rat model, may present a contributing factor to the reproductive dysfunction characterizing PCOS.
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Affiliation(s)
- Eleni Kandaraki
- Department of Biological Chemistry, University of Athens Medical School, Athens, Greece
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Asadi-Khiavi M, Hamzeiy H, Khani S, Nakhlband A, Barar J. Gap junctions: the claymore for cancerous cells. BIOIMPACTS : BI 2011; 1:113-9. [PMID: 23678415 DOI: 10.5681/bi.2011.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/14/2011] [Revised: 07/17/2011] [Accepted: 07/20/2011] [Indexed: 11/17/2022]
Abstract
INTRODUCTION Gap junctions play an important role in the cell proliferation in mammalian cells as well as carcinogenesis. However, there are controversial issues about their role in cancer pathogenesis. This study was designed to evaluate genotoxicity and cytotoxicity of Carbenoxolone (CBX) as a prototype of inter-cellular gap junction blocker in MCF7 and BT20 human breast cancer cells. METHODS The MCF7and BT20 human breast cancer cell lines were cultivated, and treated at designated confluency with different doses of CBX. Cellular cytotoxicity was examined using standard colorimetric assay associated with cell viability tests. Gene expression evaluation was carried out using real time polymerase chain reaction (PCR). RESULTS MCF7 and BT20 cells were significantly affected by CBX in a dose dependent manner in cell viability assays. Despite varying expression of genes, down regulation of pro- and anti-apoptotic genes was observed in these cells. CONCLUSION Based upon this investigation, it can be concluded that CBX could affect both low and high proliferative types of breast cancer cell lines and disproportionate down regulation of both pre- and anti-apoptotic genes may be related to interacting biomolecules, perhaps via gap junctions.
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Affiliation(s)
- Masoud Asadi-Khiavi
- Department of Pharmacology and Toxicology, School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran ; Research Center for Pharmaceutical Nanotechnology, School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran ; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
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Naidu R, Har YC, Taib NAM. Glyoxalase I Ala111Glu gene polymorphism: No association with breast cancer risk but correlated with absence of progesterone receptor. Pathol Int 2010; 60:614-20. [DOI: 10.1111/j.1440-1827.2010.02568.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Dieli-Conwright CM, Spektor TM, Rice JC, Todd Schroeder E. Oestradiol and SERM treatments influence oestrogen receptor coregulator gene expression in human skeletal muscle cells. Acta Physiol (Oxf) 2009; 197:187-96. [PMID: 19432593 DOI: 10.1111/j.1748-1716.2009.01997.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
AIM Oestrogen receptors (ER) are present in human skeletal muscle (hSkM) cells; however, the function of the receptor is currently unknown. We investigated the influence of oestradiol and selective ER modulators [tamoxifen (TAM), raloxifene (RAL)] on ER coregulator mRNA expression in hSkM. METHODS Human skeletal muscle cells were treated with 10 nm oestradiol, 5 microm TAM and 10 microm RAL over a 24-h period. Following the treatment period, mRNA expression was quantified using real-time PCR to detect changes in ER-alpha, ER-beta, steroid receptor coactivator (SRC), silencing mediator for retinoid and thyroid hormone receptors (SMRT), MyoD, GLUT4 and c-fos. RESULTS ER-alpha mRNA expression increased with all three drug treatments (P < 0.05) while there was no change in mRNA expression of ER-beta in hSkM cells. mRNA expression of SRC increased and SMRT decreased with oestradiol, TAM and RAL in hSkM cells (P < 0.05). Importantly, mRNA expression of MyoD increased with oestradiol and decreased with TAM and RAL in hSkM cells (P < 0.05). mRNA expression of GLUT4 increased with oestradiol and RAL and decreased with TAM in hSkM cells (P < 0.05). CONCLUSIONS These findings are novel in that they provide the first evidence that oestradiol and selective ER modulators influence ER-alpha function in hSkM cells. This demonstrates the importance of the ER and alterations in its coregulators, to potentially prevent sarcopenia and promote muscle growth in postmenopausal women using these forms of hormone replacement therapy.
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Affiliation(s)
- C M Dieli-Conwright
- Division of Biokinesiology and Physical Therapy, Clinical Exercise Research Center, Los Angeles, CA, USA
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Germanová A, Germanová A, Tesarová P, Jáchymová M, Zvára K, Zima T, Kalousová M. Glyoxalase I Glu111Ala polymorphism in patients with breast cancer. Cancer Invest 2009; 27:655-60. [PMID: 19452310 DOI: 10.1080/07357900802350822] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Effect of advanced glycation end products (AGEs) in the pathogenesis of cancer could be diminished by interaction with soluble RAGE or by reducing AGE-precursors via glyoxalase I. Glu111Ala polymorphism of glyoxalase I gene, AGEs, and sRAGE serum levels were studied in 113 breast cancer patients and in 58 controls. Higher frequency of the mutated C allele was found in patients with negative estrogen receptors and in patients in clinical stage III compared to controls (P< 0.05). The presence of the C allele could represent a negative prognostic factor; however, further studies are needed to confirm this hypothesis.
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Affiliation(s)
- Alexandra Germanová
- Institute of Clinical Chemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
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Hutchinson TH, Mahshid Y, Jönsson R, Björklund C, Kenne K. Proteomic analysis of phospholipidosis in citalopram treated U937 cells--support for the cholesterol biosynthesis hypothesis. Toxicol In Vitro 2008; 22:1198-204. [PMID: 18499393 DOI: 10.1016/j.tiv.2008.03.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2007] [Revised: 03/17/2008] [Accepted: 03/27/2008] [Indexed: 10/22/2022]
Abstract
Excessive accumulation of phospholipids leads to phospholipidosis (PL), which disrupts cellular functions, in extreme cases leading to acute or chronic disease. Citalopram and many other cationic amphiphilic drugs (CADs) have been shown to cause PL both in vitro and in vivo. Recent toxicogenomic studies suggest four hypothetical mechanisms for PL (lysosomal enzyme transport decrease, lysosomal phospholipase activity decrease, phospholipids biosynthesis increase or cholesterol biosynthesis increase). However, the post-genomic steps remain largely unknown and proteomic analyses hold significant promise for defining mechanisms of PL induction. In this study U937 monoblastoid cells were exposed to citalopram hydrobromide for 24 h (0, 20, 100 or 200 microM as citalopram free base) and then harvested for whole cell proteomic analysis using 2-D gel electrophoresis, or transmission electron microscopy (TEM). Protein spots that were significantly altered versus controls were analysed by MALDI-TOF mass spectrometry. Up-regulated proteins were Glyoxalase-I (Glo 1) and 3-Hydroxy-3-methylglutaryl-Coenzyme A synthase 1 (HMGCS1) in cells with PL shown by TEM (favouring the cholesterol biosynthesis increase hypothesis for citalopram induced PL). Other altered proteins were catalase (up-regulated), beta-actin (up-regulated) and 14-3-3 protein (down-regulated). The function of several of the successfully identified proteins indicates a potential perturbed lipid metabolism.
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