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Hajibabaie F, Abedpoor N, Haghjooy Javanmard S, Hasan A, Sharifi M, Rahimmanesh I, Shariati L, Makvandi P. The molecular perspective on the melanoma and genome engineering of T-cells in targeting therapy. ENVIRONMENTAL RESEARCH 2023; 237:116980. [PMID: 37648188 DOI: 10.1016/j.envres.2023.116980] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 08/19/2023] [Accepted: 08/23/2023] [Indexed: 09/01/2023]
Abstract
Melanoma, an aggressive malignant tumor originating from melanocytes in humans, is on the rise globally, with limited non-surgical treatment options available. Recent advances in understanding the molecular and cellular mechanisms underlying immune escape, tumorigenesis, drug resistance, and cancer metastasis have paved the way for innovative therapeutic strategies. Combination therapy targeting multiple pathways simultaneously has been shown to be promising in treating melanoma, eliciting favorable responses in most melanoma patients. CAR T-cells, engineered to overcome the limitations of human leukocyte antigen (HLA)-dependent tumor cell detection associated with T-cell receptors, offer an alternative approach. By genetically modifying apheresis-collected allogeneic or autologous T-cells to express chimeric antigen receptors, CAR T-cells can appreciate antigens on cell surfaces independently of major histocompatibility complex (MHC), providing a significant cancer cell detection advantage. However, identifying the most effective target antigen is the initial step, as it helps mitigate the risk of toxicity due to "on-target, off-tumor" and establishes a targeted therapeutic strategy. Furthermore, evaluating signaling pathways and critical molecules involved in melanoma pathogenesis remains insufficient. This study emphasizes the novel approaches of CAR T-cell immunoediting and presents new insights into the molecular signaling pathways associated with melanoma.
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Affiliation(s)
- Fatemeh Hajibabaie
- Department of Biology, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran; Department of Medical Biotechnology, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran.
| | - Navid Abedpoor
- Department of Sports Physiology, Faculty of Sports Sciences, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran; Department of Medical Biotechnology, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran.
| | - Shaghayegh Haghjooy Javanmard
- Applied Physiology Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Anwarul Hasan
- Department of Mechanical and Industrial Engineering, Qatar University, Doha, 2713, Qatar; Biomedical Research Center, Qatar University, Doha, 2713, Qatar.
| | - Mehran Sharifi
- Department of Internal Medicine, School of Medicine, Cancer Prevention Research Center, Seyyed Al-Shohada Hospital, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Ilnaz Rahimmanesh
- Applied Physiology Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Laleh Shariati
- Department of Biomaterials, Nanotechnology and Tissue Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, 8174673461, Iran; Biosensor Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Pooyan Makvandi
- The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, 324000, Zhejiang, China; School of Engineering, Institute for Bioengineering, The University of Edinburgh, Edinburgh, EH9 3JL, UK.
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2
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Yehl M, Kucharski D, Eubank M, Gulledge B, Rayan G, Uddin MG, Remmers G, Kandel ES, DuFaux DP, Hutcherson TC, Sexton S, Zucker SN. The Development of Nonthermal Plasma and Tirapazamine as a Novel Combination Therapy to Treat Melanoma In Situ. Cells 2023; 12:2113. [PMID: 37626923 PMCID: PMC10453358 DOI: 10.3390/cells12162113] [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: 07/16/2023] [Revised: 08/07/2023] [Accepted: 08/15/2023] [Indexed: 08/27/2023] Open
Abstract
Although melanoma accounts for only 5.3% of skin cancer, it results in >75% of skin-cancer-related deaths. To avoid disfiguring surgeries on the head and neck associated with surgical excision, there is a clear unmet need for other strategies to selectively remove cutaneous melanoma lesions. Mohs surgery is the current treatment for cutaneous melanoma lesions and squamous and basal cell carcinoma. While Mohs surgery is an effective way to remove melanomas in situ, normal tissue is also excised to achieve histologically negative margins. This paper describes a novel combination therapy of nonthermal plasma (NTP) which emits a multitude of reactive oxygen species (ROS) and the injection of a pharmaceutical agent. We have shown that the effects of NTP are augmented by the DNA-damaging prodrug, tirapazamine (TPZ), which becomes a free radical only in conditions of hypoxemia, which is often enhanced in the tumor microenvironment. In this study, we demonstrate the efficacy of the combination therapy through experiments with B16-F10 and 1205 Lu metastatic melanoma cells both in vitro and in vivo. We also show the safety parameters of the therapy with no significant effects of the therapy when applied to porcine skin. We show the need for the intratumor delivery of TPZ in combination with the surface treatment of NTP and present a model of a medical device to deliver this combination therapy. The importance of functional gap junctions is indicated as a mechanism to promote the therapeutic effect. Collectively, the data support a novel therapeutic combination to treat melanoma and the development of a medical device to deliver the treatment in situ.
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Affiliation(s)
- Matthew Yehl
- D’Youville University School of Pharmacy, 320 Porter Avenue, Buffalo, NY 14201, USA
| | - Dominik Kucharski
- D’Youville University School of Pharmacy, 320 Porter Avenue, Buffalo, NY 14201, USA
| | - Michelle Eubank
- D’Youville University School of Pharmacy, 320 Porter Avenue, Buffalo, NY 14201, USA
| | - Brandon Gulledge
- D’Youville University School of Pharmacy, 320 Porter Avenue, Buffalo, NY 14201, USA
| | - Gamal Rayan
- D’Youville University School of Pharmacy, 320 Porter Avenue, Buffalo, NY 14201, USA
| | - Md Gias Uddin
- D’Youville University School of Pharmacy, 320 Porter Avenue, Buffalo, NY 14201, USA
| | | | - Eugene S. Kandel
- Roswell Park Comprehensive Cancer Center, 665 Elm Street, Buffalo, NY 14203, USA
| | - Douglas P. DuFaux
- Alfie Technology Corporation, 227 Thorn Avenue, Orchard Park, NY 14127, USA
| | | | - Sandra Sexton
- Roswell Park Comprehensive Cancer Center, 665 Elm Street, Buffalo, NY 14203, USA
| | - Shoshanna N. Zucker
- D’Youville University School of Pharmacy, 320 Porter Avenue, Buffalo, NY 14201, USA
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Sassi A, Fredon M, Cotte AK, Fuselier C, Schneider C, Martiny L, Monchaud D, Chekir-Ghedira L, Aires V, Delmas D. Chrysin-Induced Regression of Angiogenesis via an Induction of DNA Damage Response and Oxidative Stress in In Vitro and In Vivo Models of Melanoma. Cells 2023; 12:1561. [PMID: 37371032 DOI: 10.3390/cells12121561] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 05/24/2023] [Accepted: 06/02/2023] [Indexed: 06/29/2023] Open
Abstract
Despite the progress made in treatments, melanoma is one of the cancers for which its incidence and mortality have increased during recent decades. In the research of new therapeutic strategies, natural polyphenols such as chrysin could be good candidates owing to their capacities to modulate the different fundamental aspects of tumorigenesis and resistance mechanisms, such as oxidative stress and neoangiogenesis. In the present study, we sought to determine whether chrysin could exert antitumoral effects via the modulation of angiogenesis by acting on oxidative stress and associated DNA damage. For the first time, we show a link between chrysin-induced antiproliferative effects, the activation of the DNA damage pathway, and its ability to limit angiogenesis. More specifically, herein, we show that chrysin induces single- and double-stranded DNA breaks via the activation of the DNA damage response pathway: ATM (ataxia-telangiectasia-mutated)/Chk2 (checkpoint kinase 2) and ATR (ataxia telangiectasia and Rad3-related)/Chk1 (checkpoint kinase 1) pathways. Strong activation of this DNA damage response was found to be partly involved in the ability of chrysin to limit angiogenesis and may partly involve a direct interaction between the polyphenol and DNA G-quadruplex structures responsible for the replication fork collapse. Moreover, these events were associated with a marked reduction in melanoma cells' capacity to secrete proangiogenic factor VEGF-A. The disruption of these key protein actors in tumor growth by chrysin was also confirmed in a syngeneic model of B16 melanoma. This last point is of importance to further consider the use of chrysin as a new therapeutic strategy in melanoma treatment.
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Affiliation(s)
- Aicha Sassi
- UFR Sciences de Santé, Université de Bourgogne, 21000 Dijon, France
- INSERM Research Center U1231-Cancer and Adaptive Immune Response Team, Bioactive Molecules and Health Research Group, 21000 Dijon, France
- Research Unit Bioactive Natural Products and Biotechnology UR17ES49, Faculty of Dental Medicine of Monastir, University of Monastir, Avicenne Street, Monastir 5000, Tunisia
| | - Maxime Fredon
- UFR Sciences de Santé, Université de Bourgogne, 21000 Dijon, France
- INSERM Research Center U1231-Cancer and Adaptive Immune Response Team, Bioactive Molecules and Health Research Group, 21000 Dijon, France
| | - Alexia K Cotte
- UFR Sciences de Santé, Université de Bourgogne, 21000 Dijon, France
- INSERM Research Center U1231-Cancer and Adaptive Immune Response Team, Bioactive Molecules and Health Research Group, 21000 Dijon, France
| | - Camille Fuselier
- Faculté des Sciences Exactes et Naturelles, UMR CNRS 7369 MEDyC, Université de Reims Champagne Ardenne, 51687 Reims, France
| | - Christophe Schneider
- Faculté des Sciences Exactes et Naturelles, UMR CNRS 7369 MEDyC, Université de Reims Champagne Ardenne, 51687 Reims, France
| | - Laurent Martiny
- Faculté des Sciences Exactes et Naturelles, UMR CNRS 7369 MEDyC, Université de Reims Champagne Ardenne, 51687 Reims, France
| | - David Monchaud
- UFR Sciences de Santé, Université de Bourgogne, 21000 Dijon, France
- Institut de Chimie Moléculaire (ICMUB), CNRS UMR6302, UBFC, 21078 Dijon, France
| | - Leila Chekir-Ghedira
- Research Unit Bioactive Natural Products and Biotechnology UR17ES49, Faculty of Dental Medicine of Monastir, University of Monastir, Avicenne Street, Monastir 5000, Tunisia
| | - Virginie Aires
- UFR Sciences de Santé, Université de Bourgogne, 21000 Dijon, France
- INSERM Research Center U1231-Cancer and Adaptive Immune Response Team, Bioactive Molecules and Health Research Group, 21000 Dijon, France
| | - Dominique Delmas
- UFR Sciences de Santé, Université de Bourgogne, 21000 Dijon, France
- INSERM Research Center U1231-Cancer and Adaptive Immune Response Team, Bioactive Molecules and Health Research Group, 21000 Dijon, France
- Centre de Lutte Contre le Cancer Georges François Leclerc Center, 21000 Dijon, France
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4
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Becker AL, Indra AK. Oxidative Stress in Melanoma: Beneficial Antioxidant and Pro-Oxidant Therapeutic Strategies. Cancers (Basel) 2023; 15:cancers15113038. [PMID: 37297001 DOI: 10.3390/cancers15113038] [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: 04/21/2023] [Revised: 05/28/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023] Open
Abstract
Cutaneous melanoma ranks as the fifth most common cancer in the United States and represents one of the deadliest forms of skin cancer. While recent advances in systemic targeted therapies and immunotherapies have positively impacted melanoma survival, the survival rate of stage IV melanoma remains at a meager 32%. Unfortunately, tumor resistance can impede the effectiveness of these treatments. Oxidative stress is a pivotal player in all stages of melanoma progression, with a somewhat paradoxical function that promotes tumor initiation but hinders vertical growth and metastasis in later disease. As melanoma progresses, it employs adaptive mechanisms to lessen oxidative stress in the tumor environment. Redox metabolic rewiring has been implicated in acquired resistance to BRAF/MEK inhibitors. A promising approach to enhance the response to therapy involves boosting intracellular ROS production using active biomolecules or targeting enzymes that regulate oxidative stress. The complex interplay between oxidative stress, redox homeostasis, and melanomagenesis can also be leveraged in a preventive context. The purpose of this review is to provide an overview of oxidative stress in melanoma, and how the antioxidant system may be manipulated in a therapeutic context for improved efficacy and survival.
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Affiliation(s)
- Alyssa L Becker
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University (OSU), Corvallis, OR 97331, USA
- John A. Burns School of Medicine, University of Hawai'i at Mānoa, Honolulu, HI 96813, USA
| | - Arup K Indra
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University (OSU), Corvallis, OR 97331, USA
- Knight Cancer Institute, Oregon Health & Science University (OHSU), Portland, OR 97239, USA
- Department of Biochemistry and Biophysics, Oregon State University (OSU), Corvallis, OR 97331, USA
- Linus Pauling Science Center, Oregon State University (OSU), Corvallis, OR 97331, USA
- Department of Dermatology, Oregon Health & Science University (OHSU), Portland, OR 97239, USA
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5
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Microbiota, Oxidative Stress, and Skin Cancer: An Unexpected Triangle. Antioxidants (Basel) 2023; 12:antiox12030546. [PMID: 36978794 PMCID: PMC10045429 DOI: 10.3390/antiox12030546] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/15/2023] [Accepted: 02/16/2023] [Indexed: 02/24/2023] Open
Abstract
Mounting evidence indicates that the microbiota, the unique combination of micro-organisms residing in a specific environment, plays an essential role in the development of a wide range of human diseases, including skin cancer. Moreover, a persistent imbalance of microbial community, named dysbiosis, can also be associated with oxidative stress, a well-known emerging force involved in the pathogenesis of several human diseases, including cutaneous malignancies. Although their interplay has been somewhat suggested, the connection between microbiota, oxidative stress, and skin cancer is a largely unexplored field. In the present review, we discuss the current knowledge on these topics, suggesting potential therapeutic strategies.
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6
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Remigante A, Spinelli S, Marino A, Pusch M, Morabito R, Dossena S. Oxidative Stress and Immune Response in Melanoma: Ion Channels as Targets of Therapy. Int J Mol Sci 2023; 24:ijms24010887. [PMID: 36614330 PMCID: PMC9821408 DOI: 10.3390/ijms24010887] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/28/2022] [Accepted: 12/30/2022] [Indexed: 01/06/2023] Open
Abstract
Oxidative stress and immune response play an important role in the development of several cancers, including melanoma. Ion channels are aberrantly expressed in tumour cells and regulate neoplastic transformation, malignant progression, and resistance to therapy. Ion channels are localized in the plasma membrane or other cellular membranes and are targets of oxidative stress, which is particularly elevated in melanoma. At the same time, ion channels are crucial for normal and cancer cell physiology and are subject to multiple layers of regulation, and therefore represent promising targets for therapeutic intervention. In this review, we analyzed the effects of oxidative stress on ion channels on a molecular and cellular level and in the context of melanoma progression and immune evasion. The possible role of ion channels as targets of alternative therapeutic strategies in melanoma was discussed.
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Affiliation(s)
- Alessia Remigante
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98122 Messina, Italy
| | - Sara Spinelli
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98122 Messina, Italy
| | - Angela Marino
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98122 Messina, Italy
| | - Michael Pusch
- Biophysics Institute, National Research Council, 16149 Genova, Italy
| | - Rossana Morabito
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98122 Messina, Italy
- Correspondence:
| | - Silvia Dossena
- Institute of Pharmacology and Toxicology, Paracelsus Medical University, 5020 Salzburg, Austria
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7
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Cohen D, Portugal-Cohen M, Oron M, Frusic-Zlotkin M, Soroka Y, Ma'or Z, Amar D, Kohen R. Cutaneous Nrf2-Keap1 pathway modulation by environmental factors: The Dead Sea area as a test case. Biofactors 2022; 49:428-437. [PMID: 36522798 DOI: 10.1002/biof.1926] [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: 10/19/2022] [Accepted: 11/28/2022] [Indexed: 12/23/2022]
Abstract
The skin is constantly exposed to exogenous environmental stressors and has to cope with excessive oxidative stress and tissue damage. However, exposure to moderate environmental stressors may be beneficial for the cutaneous tissue and assist in protecting against oxidative damage via the enhanced activation of the nuclear factor erythroid 2-related factor 2-Kelch-like ECH-associated protein 1 (Nrf2-Keap1) pathway. Such moderate stressors can be found in various locations around the globe. In this manuscript, we chose to focus on the Dead Sea (DS) area as a test case to study the effect of moderate stressors on the cutaneous tissue because of the unique combinations of moderate stressors in this area. The exceptional location of the DS at an altitude of -438 meters below sea level (the lowest place on earth) is responsible for its rare accumulation of moderate stressors such as high-water salinity, high atmospheric pressure, and unique solar radiation. In this manuscript, we hypothesized that the unique solar radiation in the DS area generates moderate oxidative stress in the skin leading to the induction of intracellular electrophiles, which in turn can activate the protecting Nrf2-Keap1 pathway. We showed that exposure of human skin organ culture from the same donor to solar radiation at the DS resulted in significant activation of the Nrf2-Keap1 pathway, induction of phase II enzymes, and lower apoptotic activity compared to a nearby location at a higher altitude (Jerusalem +700 m). This remarkable effect of activating the Nrf2 protecting pathway and the importance and characteristics of the solar irradiation at the DS is discussed.
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Affiliation(s)
- Dror Cohen
- The Myers Skin Research Laboratory, Faculty of Medicine, Institute for Drug Research, School of Pharmacy, The Hebrew University of Jerusalem, Jerusalem, Israel
- The Skin Research Institute, The Dead Sea & Arava Science Center, Masada, Israel
| | | | - Miriam Oron
- Miriam Oron Mingelgrin Consulting, Jerusalem, Israel
| | - Marina Frusic-Zlotkin
- The Myers Skin Research Laboratory, Faculty of Medicine, Institute for Drug Research, School of Pharmacy, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Yoram Soroka
- The Myers Skin Research Laboratory, Faculty of Medicine, Institute for Drug Research, School of Pharmacy, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Ze'evi Ma'or
- The Dead Sea Hub department, Fosun Jinmei (Shanghai) Cosmetics Co., Ltd, Shanghai, China
| | - Dalit Amar
- Department of Plastic, Reconstructive and Aesthetic Surgery, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Ron Kohen
- The Myers Skin Research Laboratory, Faculty of Medicine, Institute for Drug Research, School of Pharmacy, The Hebrew University of Jerusalem, Jerusalem, Israel
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Panieri E, Telkoparan-Akillilar P, Saso L. NRF2, a crucial modulator of skin cells protection against vitiligo, psoriasis, and cancer. Biofactors 2022; 49:228-250. [PMID: 36310374 DOI: 10.1002/biof.1912] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 10/05/2022] [Indexed: 11/12/2022]
Abstract
The skin represents a physical barrier between the organism and the environment that has evolved to confer protection against biological, chemical, and physical insults. The inner layer, known as dermis, is constituted by connective tissue and different types of immune cells whereas the outer layer, the epidermis, is composed by different layers of keratinocytes and an abundant number of melanocytes, localized in the stratum basale of the epidermis. Oxidative stress is a common alteration of inflammatory skin disorders such as vitiligo, dermatitis, or psoriasis but can also play a causal role in skin carcinogenesis and tumor progression. Nuclear factor (erythroid-derived 2)-like 2 (NRF2) has emerged as a crucial regulator of cell defense mechanisms activating complex transcriptional programs that facilitate reactive oxygen species detoxification, repair oxidative damage and prevent xenobiotic-induced toxicity. Accumulating evidence suggests that the keratinocytes, melanocytes, and other skin cell types express high levels of NRF2, which is known to play a pivotal role in the skin homeostasis, differentiation, and metabolism during normal and pathologic conditions. In the present review, we summarize the current evidence linking NRF2 to skin pathophysiology and we discuss some recent modulators of NRF2 activity that have shown a therapeutic efficacy in skin protection against tumor initiation and common inflammatory skin conditions such as vitiligo or psoriasis, with a particular emphasis on natural compounds.
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Affiliation(s)
- Emiliano Panieri
- Department of Physiology and Pharmacology "Vittorio Erspamer", Sapienza University of Rome, Rome, Italy
- Department of General Direction (DG), Section of Hazardous Substances, Environmental Education and Training for the Technical Coordination of Management Activities (DGTEC), Italian Institute for Environmental Protection and Research, Rome, Italy
| | | | - Luciano Saso
- Department of Physiology and Pharmacology "Vittorio Erspamer", Sapienza University of Rome, Rome, Italy
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Wei B, Zhao Y, Li W, Zhang S, Yan M, Hu Z, Gao B. Innovative immune mechanisms and antioxidative therapies of intervertebral disc degeneration. Front Bioeng Biotechnol 2022; 10:1023877. [PMID: 36299288 PMCID: PMC9588944 DOI: 10.3389/fbioe.2022.1023877] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 09/27/2022] [Indexed: 11/13/2022] Open
Abstract
Intervertebral disc degeneration (IDD) is the basic pathological process of many degenerative diseases of the spine, characterized by series of symptoms, among which low back pain (LBP) is the most common symptom that patients suffer a lot, which not only makes patients and individual families bear a huge pain and psychological burden, but also consumes a lot of medical resources. IDD is usually thought to be relevant with various factors such as genetic predisposition, trauma and aging, and IDD progression is tightly relevant with structural and functional alterations. IDD processes are caused by series of pathological processes, including oxidative stress, matrix decomposition, inflammatory reaction, apoptosis, abnormal proliferation, cell senescence, autophagy as well as sepsis process, among which the oxidative stress and inflammatory response are considered as key link in IDD. The production and clearance of ROS are tightly connected with oxidative stress, which would further simulate various signaling pathways. The phenotype of disc cells could change from matrix anabolism-to matrix catabolism- and proinflammatory-phenotype during IDD. Recent decades, with the relevant reports about oxidative stress and inflammatory response in IDD increasing gradually, the mechanisms researches have attracted much more attention. Consequently, this study focused on the indispensable roles of the oxidative stress and inflammatory response (especially macrophages and cytokines) to illustrate the origin, development, and deterioration of IDD, aiming to provide novel insights in the molecular mechanisms as well as significant clinical values for IDD.
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Affiliation(s)
- Bingqian Wei
- Institute of Orthopedic Surgery, Xijing Hospital, Air Force Medical University, Xi’an, China
- Basic Medical College, Air Force Medical University, Xi’an, China
| | - Yingjing Zhao
- Department of Critical Care Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Weihang Li
- Institute of Orthopedic Surgery, Xijing Hospital, Air Force Medical University, Xi’an, China
| | - Shilei Zhang
- Institute of Orthopedic Surgery, Xijing Hospital, Air Force Medical University, Xi’an, China
| | - Ming Yan
- Institute of Orthopedic Surgery, Xijing Hospital, Air Force Medical University, Xi’an, China
- *Correspondence: Ming Yan, ; Zebing Hu, ; Bo Gao,
| | - Zebing Hu
- The Key Laboratory of Aerospace Medicine, Ministry of Education, Air Force Medical University, Xi’an, China
- *Correspondence: Ming Yan, ; Zebing Hu, ; Bo Gao,
| | - Bo Gao
- Institute of Orthopedic Surgery, Xijing Hospital, Air Force Medical University, Xi’an, China
- *Correspondence: Ming Yan, ; Zebing Hu, ; Bo Gao,
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10
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Photoprotective effect of 18β-glycyrrhetinic acid derivatives against ultra violet (UV)-B-Induced skin aging. Bioorg Med Chem Lett 2022; 76:128984. [PMID: 36167293 DOI: 10.1016/j.bmcl.2022.128984] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 08/07/2022] [Accepted: 09/05/2022] [Indexed: 11/22/2022]
Abstract
Excessive exposure to sun can harm the skin, causing sunburn, photo-aging, and even skin cancer. Different benzylidene derivatives (A02-A18 and A19-A34) of 18β-Glycyrrhetinic acid (A01) were designed and synthesized in an effort to discover photo-protective compounds against UV-B -induced skin aging. The synthesized derivatives were subjected to cellular viability test using MTT assay in primary Human Dermal Fibroblasts (HDFs). The results indicate A01, A05, A15, A22, A23, A25, A26, A28, A29, A32, A33, and A34 significantly enhanced cell viability of HDFs. Compound A33 at 10 and 25 μM showed a significant photo-protective effect against UV-B (10 mJ/cm2) -induced damage in HDFs. A33 at 25 μM significantly restored the UV-B -induced damage via its potent anti-oxidant, anti-apoptotic effects and ability to prevent collagen degradation. These findings pave the way for further development of A33 as a photo-protective skin agent.
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11
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The Nrf2 antioxidant defense system in intervertebral disc degeneration: Molecular insights. EXPERIMENTAL & MOLECULAR MEDICINE 2022; 54:1067-1075. [PMID: 35978054 PMCID: PMC9440120 DOI: 10.1038/s12276-022-00829-6] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 05/15/2022] [Accepted: 05/18/2022] [Indexed: 02/07/2023]
Abstract
Intervertebral disc degeneration (IDD) is a common degenerative musculoskeletal disorder and is recognized as a major contributor to discogenic lower back pain. However, the molecular mechanisms underlying IDD remain unclear, and therapeutic strategies for IDD are currently limited. Oxidative stress plays pivotal roles in the pathogenesis and progression of many age-related diseases in humans, including IDD. Nuclear factor E2-related factor 2 (Nrf2) is a master antioxidant transcription factor that protects cells against oxidative stress damage. Nrf2 is negatively modulated by Kelch-like ECH-associated protein 1 (Keap1) and exerts important effects on IDD progression. Accumulating evidence has revealed that Nrf2 can facilitate the transcription of downstream antioxidant genes in disc cells by binding to antioxidant response elements (AREs) in promoter regions, including heme oxygenase-1 (HO-1), glutathione (GSH), superoxide dismutase (SOD), catalase (CAT), and NADPH quinone dehydrogenase 1 (NQO1). The Nrf2 antioxidant defense system regulates cell apoptosis, senescence, extracellular matrix (ECM) metabolism, the inflammatory response of the nucleus pulposus (NP), and calcification of the cartilaginous endplates (EP) in IDD. In this review, we aim to discuss the current knowledge on the roles of Nrf2 in IDD systematically. Insights into the activity of a protein that regulates gene expression and protects cells against oxidative stress could yield novel treatments for lower back pain. Intervertebral disc degeneration (IDD) is a common cause of lower back pain, but the molecular mechanisms underlying IDD are unclear, meaning treatment options are limited. Oxidative stress is implicated in IDD, and scientists have begun exploring the role of nuclear factor E2-related factor 2 (Nrf2), a master regulator of the body’s antioxidant responses, in regulating IDD progression. In a review of recent research, Weishi Li at Peking University Third Hospital, Beijing, China, and co-workers point out that boosting the activity of Nrf2-related signaling pathways alleviates oxidative stress in intervertebral disc cells. The researchers suggest that therapies based on non-coding RNAs may prove valuable in activating Nrf2 in IDD patients.
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12
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Pogribna M, Word B, Lyn-Cook B, Hammons G. Effect of titanium dioxide nanoparticles on histone modifications and histone modifying enzymes expression in human cell lines. Nanotoxicology 2022; 16:409-424. [DOI: 10.1080/17435390.2022.2085206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Marta Pogribna
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food & Drug Administration, Jefferson, AR, USA
| | - Beverly Word
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food & Drug Administration, Jefferson, AR, USA
| | - Beverly Lyn-Cook
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food & Drug Administration, Jefferson, AR, USA
| | - George Hammons
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food & Drug Administration, Jefferson, AR, USA
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13
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Comparaţie între metabolismul oxidativ la pacienţii cu melanom uveal versus melanom cutanat. ONCOLOG-HEMATOLOG.RO 2022. [DOI: 10.26416/onhe.60.3.2022.7156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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14
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Vesga LC, Silva AMP, Bernal CC, Mendez-Sánchez SC, Romero Bohórquez AR. Tetrahydroquinoline/4,5-dihydroisoxazole hybrids with a remarkable effect over mitochondrial bioenergetic metabolism on melanoma cell line B16F10. Med Chem Res 2021. [DOI: 10.1007/s00044-021-02796-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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TRPM2 Oxidation Activates Two Distinct Potassium Channels in Melanoma Cells through Intracellular Calcium Increase. Int J Mol Sci 2021; 22:ijms22168359. [PMID: 34445066 PMCID: PMC8393965 DOI: 10.3390/ijms22168359] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 07/29/2021] [Accepted: 08/02/2021] [Indexed: 12/13/2022] Open
Abstract
Tumor microenvironments are often characterized by an increase in oxidative stress levels. We studied the response to oxidative stimulation in human primary (IGR39) or metastatic (IGR37) cell lines obtained from the same patient, performing patch-clamp recordings, intracellular calcium ([Ca2+]i) imaging, and RT-qPCR gene expression analysis. In IGR39 cells, chloramine-T (Chl-T) activated large K+ currents (KROS) that were partially sensitive to tetraethylammonium (TEA). A large fraction of KROS was inhibited by paxilline—a specific inhibitor of large-conductance Ca2+-activated BK channels. The TEA-insensitive component was inhibited by senicapoc—a specific inhibitor of the Ca2+-activated KCa3.1 channel. Both BK and KCa3.1 activation were mediated by an increase in [Ca2+]i induced by Chl-T. Both KROS and [Ca2+]i increase were inhibited by ACA and clotrimazole—two different inhibitors of the calcium-permeable TRPM2 channel. Surprisingly, IGR37 cells did not exhibit current increase upon the application of Chl-T. Expression analysis confirmed that the genes encoding BK, KCa3.1, and TRPM2 are much more expressed in IGR39 than in IGR37. The potassium currents and [Ca2+]i increase observed in response to the oxidizing agent strongly suggest that these three molecular entities play a major role in the progression of melanoma. Pharmacological targeting of either of these ion channels could be a new strategy to reduce the metastatic potential of melanoma cells, and could complement classical radio- or chemotherapeutic treatments.
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Günther A, Makuch E, Nowak A, Duchnik W, Kucharski Ł, Pełech R, Klimowicz A. Enhancement of the Antioxidant and Skin Permeation Properties of Betulin and Its Derivatives. Molecules 2021; 26:3435. [PMID: 34198892 PMCID: PMC8201114 DOI: 10.3390/molecules26113435] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 05/31/2021] [Accepted: 06/01/2021] [Indexed: 12/31/2022] Open
Abstract
This study investigated the antioxidant activity DPPH, ABTS, and Folin-Ciocalteu methods of betulin (compound 1) and its derivatives (compounds 2-11). Skin permeability and accumulation associated with compounds 1 and 8 were also examined. Identification of the obtained products (compound 2-11) and betulin isolated from plant material was based on the analysis of 1H- NMR and 13C-NMR spectra. The partition coefficient was calculated to determine the lipophilicity of all compounds. In the next stage, the penetration through pig skin and its accumulation in the skin were evaluated of ethanol vehicles containing compound 8 (at a concentration of 0.226 mmol/dm3), which was characterized by the highest antioxidant activity. For comparison, penetration studies of betulin itself were also carried out. Poor solubility and the bioavailability of pure compounds are major constraints in combination therapy. However, we observed that the ethanol vehicle was an enhancer of skin permeation for both the initial betulin and compound 8. The betulin 8 derivative showed increased permeability through biological membranes compared to the parent betulin. The paper presents the transformation of polycyclic compounds to produce novel derivatives with marked antioxidant activities and as valuable intermediates for the pharmaceutical industry. Moreover, the compounds contained in the vehicles, due to their mechanism of action, can have a beneficial effect on the balance between oxidants and antioxidants in the body, minimizing the effects of oxidative stress. The results of this work may contribute to knowledge regarding vehicles with antioxidant potential. The use of vehicles for this type of research is therefore justified.
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Affiliation(s)
- Andrzej Günther
- Department of Chemical Organic Technology and Polymeric Materials, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, PL-70322 Szczecin, Poland; (E.M.); (R.P.)
| | - Edyta Makuch
- Department of Chemical Organic Technology and Polymeric Materials, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, PL-70322 Szczecin, Poland; (E.M.); (R.P.)
| | - Anna Nowak
- Department of Cosmetic and Pharmaceutical Chemistry, Pomeranian Medical University in Szczecin, PL-70111 Szczecin, Poland; (A.N.); (W.D.); (Ł.K.); (A.K.)
| | - Wiktoria Duchnik
- Department of Cosmetic and Pharmaceutical Chemistry, Pomeranian Medical University in Szczecin, PL-70111 Szczecin, Poland; (A.N.); (W.D.); (Ł.K.); (A.K.)
| | - Łukasz Kucharski
- Department of Cosmetic and Pharmaceutical Chemistry, Pomeranian Medical University in Szczecin, PL-70111 Szczecin, Poland; (A.N.); (W.D.); (Ł.K.); (A.K.)
| | - Robert Pełech
- Department of Chemical Organic Technology and Polymeric Materials, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, PL-70322 Szczecin, Poland; (E.M.); (R.P.)
| | - Adam Klimowicz
- Department of Cosmetic and Pharmaceutical Chemistry, Pomeranian Medical University in Szczecin, PL-70111 Szczecin, Poland; (A.N.); (W.D.); (Ł.K.); (A.K.)
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Lecci RM, D’Antuono I, Cardinali A, Garbetta A, Linsalata V, Logrieco AF, Leone A. Antioxidant and Pro-Oxidant Capacities as Mechanisms of Photoprotection of Olive Polyphenols on UVA-Damaged Human Keratinocytes. Molecules 2021; 26:molecules26082153. [PMID: 33917980 PMCID: PMC8068360 DOI: 10.3390/molecules26082153] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 03/26/2021] [Accepted: 04/06/2021] [Indexed: 11/16/2022] Open
Abstract
A wide variety of polyphenols are reported to have considerable antioxidant and skin photoprotective effects, although the mechanisms of action are not fully known. Environmentally friendly and inexpensive sources of natural bioactive compounds, such as olive mill wastewater (OMWW), the by-product of olive-oil processing, can be considered an economic source of bioactive polyphenols, with a range of biological activities, useful as chemotherapeutic or cosmeceutical agents. Green strategies, such as the process based on membrane technologies, allow to recover active polyphenols from this complex matrix. This study aims to evaluate the antioxidant, pro-oxidant, and photoprotective effects, including the underlying action mechanism(s), of the ultra-filtered (UF) OMWW fractions, in order to substantiate their use as natural cosmeceutical ingredient. Six chemically characterized UF-OMWW fractions, from Italian and Greek olive cultivar processing, were investigated for their antioxidant activities, measured by Trolox Equivalent Antioxidant Capacity (TEAC), LDL oxidation inhibition, and ROS-quenching ability in UVA-irradiated HEKa (Human Epidermal Keratinocytes adult) cultures. The photoprotective properties of UF-OMWW were assayed as a pro-oxidant-mediated pro-apoptotic effect on the UVA-damaged HEKa cells, which can be potentially involved in the carcinogenesis process. All the UF-OMWW fractions exerted an effective antioxidant activity in vitro and in cells when administered together with UV-radiation on HEKa. A pro-oxidative and pro-apoptotic effect on the UVA-damaged HEKa cells were observed, suggesting some protective actions of polyphenol fraction on keratinocyte cell cultures.
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Affiliation(s)
- Raffaella Marina Lecci
- National Research Council, Institute of Sciences of Food Production, (CNR-ISPA, Lecce), Via Prov.le Lecce-Monteroni, 73100 Lecce, Italy;
| | - Isabella D’Antuono
- National Research Council, Institute of Science of Food Production, (CNR-ISPA, Bari), Via Amendola, 122/O, 70126 Bari, Italy; (I.D.); (A.G.); (V.L.); (A.F.L.)
| | - Angela Cardinali
- National Research Council, Institute of Science of Food Production, (CNR-ISPA, Bari), Via Amendola, 122/O, 70126 Bari, Italy; (I.D.); (A.G.); (V.L.); (A.F.L.)
- Correspondence: (A.C.); (A.L.); Tel.: +39-080-5929303 (A.C.); +39-0832-422615 (A.L.); Fax: +39-0832-422620 (A.L.)
| | - Antonella Garbetta
- National Research Council, Institute of Science of Food Production, (CNR-ISPA, Bari), Via Amendola, 122/O, 70126 Bari, Italy; (I.D.); (A.G.); (V.L.); (A.F.L.)
| | - Vito Linsalata
- National Research Council, Institute of Science of Food Production, (CNR-ISPA, Bari), Via Amendola, 122/O, 70126 Bari, Italy; (I.D.); (A.G.); (V.L.); (A.F.L.)
| | - Antonio F. Logrieco
- National Research Council, Institute of Science of Food Production, (CNR-ISPA, Bari), Via Amendola, 122/O, 70126 Bari, Italy; (I.D.); (A.G.); (V.L.); (A.F.L.)
| | - Antonella Leone
- National Research Council, Institute of Sciences of Food Production, (CNR-ISPA, Lecce), Via Prov.le Lecce-Monteroni, 73100 Lecce, Italy;
- Correspondence: (A.C.); (A.L.); Tel.: +39-080-5929303 (A.C.); +39-0832-422615 (A.L.); Fax: +39-0832-422620 (A.L.)
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18
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Kazimierczak U, Dondajewska E, Zajaczkowska M, Karwacka M, Kolenda T, Mackiewicz A. LATS1 Is a Mediator of Melanogenesis in Response to Oxidative Stress and Regulator of Melanoma Growth. Int J Mol Sci 2021; 22:3108. [PMID: 33803640 PMCID: PMC8002997 DOI: 10.3390/ijms22063108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 03/13/2021] [Accepted: 03/15/2021] [Indexed: 12/21/2022] Open
Abstract
The LATS1 kinase has been described as a tumor suppressor in various cancers. However, its role in melanoma has not been fully elucidated. There are several processes involved in tumorigenesis, including melanin production. Melanin content positively correlates with the level of reactive oxygen species (ROS) inside the cell. Accordingly, the purpose of the study was to assess the role of LATS1 in melanogenesis and oxidative stress and its influence on tumor growth. We have knocked down LATS1 in primary melanocytes and melanoma cells and found that its expression is crucial for melanin synthesis, ROS production, and oxidative stress response. We showed that LATS1 ablation significantly decreased the melanogenesis markers' expression and melanin synthesis in melanocyte and melanoma cell lines. Moreover, silencing LATS1 resulted in enhanced oxidative stress. Reduced melanin content in LATS1 knocked down tumors was associated with increased tumor growth, pointing to melanin's protective role in this process. The study demonstrated that LATS1 is highly engaged in melanogenesis and oxidative stress control and affects melanoma growth. Our results may find the implications in the diagnosis and treatment of pigmentation disorders, including melanoma.
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Affiliation(s)
- Urszula Kazimierczak
- Department of Cancer Immunology, Chair of Medical Biotechnology, Poznan University of Medical Sciences, Rokietnicka Street 8, 61-806 Poznan, Poland; (E.D.); (M.Z.); (M.K.); (T.K.); (A.M.)
| | - Ewelina Dondajewska
- Department of Cancer Immunology, Chair of Medical Biotechnology, Poznan University of Medical Sciences, Rokietnicka Street 8, 61-806 Poznan, Poland; (E.D.); (M.Z.); (M.K.); (T.K.); (A.M.)
| | - Maria Zajaczkowska
- Department of Cancer Immunology, Chair of Medical Biotechnology, Poznan University of Medical Sciences, Rokietnicka Street 8, 61-806 Poznan, Poland; (E.D.); (M.Z.); (M.K.); (T.K.); (A.M.)
| | - Marianna Karwacka
- Department of Cancer Immunology, Chair of Medical Biotechnology, Poznan University of Medical Sciences, Rokietnicka Street 8, 61-806 Poznan, Poland; (E.D.); (M.Z.); (M.K.); (T.K.); (A.M.)
| | - Tomasz Kolenda
- Department of Cancer Immunology, Chair of Medical Biotechnology, Poznan University of Medical Sciences, Rokietnicka Street 8, 61-806 Poznan, Poland; (E.D.); (M.Z.); (M.K.); (T.K.); (A.M.)
| | - Andrzej Mackiewicz
- Department of Cancer Immunology, Chair of Medical Biotechnology, Poznan University of Medical Sciences, Rokietnicka Street 8, 61-806 Poznan, Poland; (E.D.); (M.Z.); (M.K.); (T.K.); (A.M.)
- Department of Cancer Diagnostics and Immunology, Greater Poland Cancer Centre, Garbary Street 15, 61-866 Poznan, Poland
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Petracca B, Rothen-Rutishauser B, Valacchi G, Eeman M. Bench approaches to study the detrimental cutaneous impact of tropospheric ozone. JOURNAL OF EXPOSURE SCIENCE & ENVIRONMENTAL EPIDEMIOLOGY 2021; 31:137-148. [PMID: 33127990 DOI: 10.1038/s41370-020-00275-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 08/10/2020] [Accepted: 09/25/2020] [Indexed: 06/11/2023]
Abstract
Being exposed to ground-level ozone (O3), as it is often the case in polluted cities, is known to have a detrimental impact on skin. O3 induces antioxidant depletion and lipid peroxidation in the upper skin layers and this effect has repercussions on deeper cellular layers, triggering a cascade of cellular stress and inflammatory responses. Repetitive exposure to high levels of O3 may lead to chronic damages of the cutaneous tissue, cause premature skin aging and aggravate skin diseases such as contact dermatitis and urticaria. This review paper debates about the most relevant experimental approaches that must be considered to gather deeper insights about the complex biological processes that are activated when the skin is exposed to O3. Having a better understanding of O3 effects on skin barrier properties and stress responses could help the whole dermato-cosmetic industry to design innovative protective solutions and develop specific cosmetic regime to protect the skin of every citizen, especially those living in areas where exposure to high levels of O3 is of concern to human health.
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Affiliation(s)
- Benedetta Petracca
- Dow Silicones Belgium SRL, Seneffe, Belgium
- Adolphe Merkle Institute, University of Fribourg, Fribourg, Switzerland
| | | | - Giuseppe Valacchi
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
- Department of Animal Sciences, Kannapolis Research Campus, North Carolina State University, Raleigh, NC, USA
- Department of Food and Nutrition, Kyung Hee University, Seoul, Korea
| | - Marc Eeman
- Dow Silicones Belgium SRL, Seneffe, Belgium.
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Pinzaru I, Tanase A, Enatescu V, Coricovac D, Bociort F, Marcovici I, Watz C, Vlaia L, Soica C, Dehelean C. Proniosomal Gel for Topical Delivery of Rutin: Preparation, Physicochemical Characterization and In Vitro Toxicological Profile Using 3D Reconstructed Human Epidermis Tissue and 2D Cells. Antioxidants (Basel) 2021; 10:antiox10010085. [PMID: 33435216 PMCID: PMC7827235 DOI: 10.3390/antiox10010085] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 01/07/2021] [Accepted: 01/07/2021] [Indexed: 12/22/2022] Open
Abstract
Rutin (Rut) is a natural flavonol, well-known for its broad-spectrum of therapeutic effects, including antioxidant and antitumoral activities; still, it has a reduced clinical outcome due to its limited solubility in aqueous solutions. To overcome this drawback, this study proposes a novel formulation for rutin as a proniosomal gel for cutaneous applications. The gel was prepared by coacervation phase-separation method and complies with the standard requirements in terms of particle size (140.5 ± 2.56 nm), zeta potential (−27.33 ± 0.09 mV), encapsulation capacity (> 50%), pH (7.002 ± 0.18) and rheological properties. The results showed high biocompatibility of the gel on the 3D reconstructed human epidermis model characterized by increased viability of the cells and a lack of irritant and phototoxic potential. The evaluations on 2D cells confirm the preferential cytotoxic effect of Rut on melanoma cells (IC50 value = 8.601 µM, nuclear fragmentation) compared to normal keratinocytes. Our data suggest that the proniosomal gel is a promising drug carrier for Rut in the management and prevention of skin disorders.
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Affiliation(s)
- Iulia Pinzaru
- Research Center for Pharmaco-Toxicological Evaluations, Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timișoara, Romania; (I.P.); (I.M.); (C.W.); (L.V.); (C.S.); (C.D.)
- Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timișoara, Romania
| | - Alina Tanase
- Faculty of Dental Medicine, “Victor Babeș” University of Medicine and Pharmacy Timisoara, 9 Revolutiei Bv., Sq., 300041 Timișoara, Romania;
| | - Virgil Enatescu
- Faculty of Medicine, “Victor Babeș” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timișoara, Romania;
- Correspondence: (V.E.); (D.C.); Tel.: +40-723-374896 (V.E.); +40-256-494604 (D.C.)
| | - Dorina Coricovac
- Research Center for Pharmaco-Toxicological Evaluations, Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timișoara, Romania; (I.P.); (I.M.); (C.W.); (L.V.); (C.S.); (C.D.)
- Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timișoara, Romania
- Correspondence: (V.E.); (D.C.); Tel.: +40-723-374896 (V.E.); +40-256-494604 (D.C.)
| | - Flavia Bociort
- Faculty of Medicine, “Victor Babeș” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timișoara, Romania;
| | - Iasmina Marcovici
- Research Center for Pharmaco-Toxicological Evaluations, Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timișoara, Romania; (I.P.); (I.M.); (C.W.); (L.V.); (C.S.); (C.D.)
- Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timișoara, Romania
| | - Claudia Watz
- Research Center for Pharmaco-Toxicological Evaluations, Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timișoara, Romania; (I.P.); (I.M.); (C.W.); (L.V.); (C.S.); (C.D.)
- Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timișoara, Romania
| | - Lavinia Vlaia
- Research Center for Pharmaco-Toxicological Evaluations, Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timișoara, Romania; (I.P.); (I.M.); (C.W.); (L.V.); (C.S.); (C.D.)
- Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timișoara, Romania
| | - Codruta Soica
- Research Center for Pharmaco-Toxicological Evaluations, Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timișoara, Romania; (I.P.); (I.M.); (C.W.); (L.V.); (C.S.); (C.D.)
- Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timișoara, Romania
| | - Cristina Dehelean
- Research Center for Pharmaco-Toxicological Evaluations, Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timișoara, Romania; (I.P.); (I.M.); (C.W.); (L.V.); (C.S.); (C.D.)
- Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square No. 2, 300041 Timișoara, Romania
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Triphenylphosphonium derivatives disrupt metabolism and inhibit melanoma growth in vivo when delivered via a thermosensitive hydrogel. PLoS One 2020; 15:e0244540. [PMID: 33378390 PMCID: PMC7773266 DOI: 10.1371/journal.pone.0244540] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Accepted: 12/11/2020] [Indexed: 12/27/2022] Open
Abstract
Despite dramatic improvements in outcomes arising from the introduction of targeted therapies and immunotherapies, metastatic melanoma is a highly resistant form of cancer with 5 year survival rates of <35%. Drug resistance is frequently reported to be associated with changes in oxidative metabolism that lead to malignancy that is non-responsive to current treatments. The current report demonstrates that triphenylphosphonium(TPP)-based lipophilic cations can be utilized to induce cytotoxicity in pre-clinical models of malignant melanoma by disrupting mitochondrial metabolism. In vitro experiments demonstrated that TPP-derivatives modified with aliphatic side chains accumulated in melanoma cell mitochondria; disrupted mitochondrial metabolism; led to increases in steady-state levels of reactive oxygen species; decreased total glutathione; increased the fraction of glutathione disulfide; and caused cell killing by a thiol-dependent process that could be rescued by N-acetylcysteine. Furthermore, TPP-derivative-induced melanoma toxicity was enhanced by glutathione depletion (using buthionine sulfoximine) as well as inhibition of thioredoxin reductase (using auranofin). In addition, there was a structure-activity relationship between the aliphatic side-chain length of TPP-derivatives (5–16 carbons), where longer carbon chains increased melanoma cell metabolic disruption and cell killing. In vivo bio-distribution experiments showed that intratumoral administration of a C14-TPP-derivative (12-carbon aliphatic chain), using a slow-release thermosensitive hydrogel as a delivery vehicle, localized the drug at the melanoma tumor site. There, it was observed to persist and decrease the growth rate of melanoma tumors. These results demonstrate that TPP-derivatives selectively induce thiol-dependent metabolic oxidative stress and cell killing in malignant melanoma and support the hypothesis that a hydrogel-based TPP-derivative delivery system could represent a therapeutic drug-delivery strategy for melanoma.
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De Cicco P, Busà R, Ercolano G, Formisano C, Allegra M, Taglialatela-Scafati O, Ianaro A. Inhibitory effects of cynaropicrin on human melanoma progression by targeting MAPK, NF-κB, and Nrf-2 signaling pathways in vitro. Phytother Res 2020; 35:1432-1442. [PMID: 33058354 DOI: 10.1002/ptr.6906] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 09/14/2020] [Accepted: 09/21/2020] [Indexed: 01/02/2023]
Abstract
Malignant melanoma is the deadliest skin cancer, due to its propensity to metastasize. MAPKs and NF-κB pathways are constitutively activated in melanoma and promote cell proliferation, cell invasion, metastasis formation, and resistance to therapeutic regimens. Thus, they represent potential targets for melanoma prevention and treatment. Phytochemicals are gaining considerable attention for the management of melanoma because of their several cellular and molecular targets. A screening of a small library of sesquiterpenes lactones selected cynaropicrin, isolated from the aerial parts of Centaurea drabifolia subsp. detonsa, for its potential anticancer effect against melanoma cells. Treatment of human melanoma cells A375 with cynaropicrin resulted in inhibition of cell proliferation and induction of caspase-3-dependent apoptosis. Furthermore, cynaropicrin reduced several cellular malignant features such migration, invasion, and colonies formation through the inhibition of ERK1/2 and NF-κB activity. Cynaropicrin was able to reduce intracellular reactive oxygen species generation, which are involved in all the stages of carcinogenesis. Indeed, cynaropicrin increased the expression of several antioxidant genes, such as glutamate-cysteine ligase and heme oxygenase-1, by promoting the activation of the transcription factor Nrf-2. In conclusion, our results individuate cynaropicrin as a potential adjuvant chemotherapeutic agent for melanoma by targeting several protumorigenic signaling pathways.
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Affiliation(s)
- Paola De Cicco
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Naples, Italy
| | - Rosalia Busà
- Department of Biological, Chemical and Pharmaceutical Science and Technologies (STEBICEF), University of Palermo, Palermo, Italy.,Research Department, Mediterranean Institute for Transplantation and Advanced Specialized Therapies (IRCCS ISMETT), Palermo, Italy
| | - Giuseppe Ercolano
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Naples, Italy.,Department of Pathology and Immunology, University of Geneva, Geneva, Switzerland
| | - Carmen Formisano
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Naples, Italy
| | - Mario Allegra
- Department of Biological, Chemical and Pharmaceutical Science and Technologies (STEBICEF), University of Palermo, Palermo, Italy
| | | | - Angela Ianaro
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Naples, Italy
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23
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A Novel Oral Astaxanthin Nanoemulsion from Haematococcus pluvialis Induces Apoptosis in Lung Metastatic Melanoma. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:2647670. [PMID: 32908627 PMCID: PMC7471791 DOI: 10.1155/2020/2647670] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 07/03/2020] [Indexed: 11/17/2022]
Abstract
Astaxanthin (AST) is a naturally occurring xanthophyll carotenoid having the potential to be used as an anticancer agent; however, the human body has a low bioavailability of AST due to its poor solubility in the water phase. Therefore, we applied D-α-tocopheryl polyethylene glycol succinate (TPGS) as an emulsifier and natural edible peanut oil to form a steady oil-in-water (O/W) nanoemulsion loaded with AST (denoted as TAP-nanoemulsion). TAP-nanoemulsions were stable without the droplet coalescence against thermal treatments (30-90°C), pH value changes (over a range of 2.0-8.0), and ionic strength adjustments (at NaCl concentrations of 100-500 mM) measured by dynamic light scattering (DLS). AST within TAP-nanoemulsion was released up to 80% in a simulated intestinal enzymatic fluid in vitro, and the overall recovery rate was fairly consistent in the Caco-2 cellular model. In order to further evaluate in vivo melanoma inhibitory experiments, we injected the fluorescent-stained B16F10 cells into female C57BL/6 mouse tail veins and treated TAP-nanoemulsion in an oral gavage. qRT-PCR and Western blot demonstrated that TAP-nanoemulsion triggered effectively the apoptosis pathway, including enhancements of cleaved caspase-3 and caspase-9, ataxia-telangiectasia mutated kinase (ATM), and p21WAF1/CIP1 (p21) and decreases of B-cell lymphoma 2 (Bcl-2); cyclins D, D1, and E; mitogen-activated protein kinase (MEK); extracellular signal-regulated kinases (ERK); nuclear factor κ-light-chain-enhancer of activated B cells (NF-κB); and matrix metallopeptidase-1 and metallopeptidase-9 (MMP-1 and MMP-9) in both gene and protein expressions. In conclusion, this study suggests that TAP-nanoemulsion with the oral treatment has a positive chemotherapy effect in melanoma with lung metastases in vivo. As far as we know, this is the first time to demonstrate that an antioxidant in nanoparticle administration cures lung metastatic melanoma.
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Yuan L, Mishra R, Patel H, Alanazi S, Wei X, Ma Z, Garrett JT. BRAF Mutant Melanoma Adjusts to BRAF/MEK Inhibitors via Dependence on Increased Antioxidant SOD2 and Increased Reactive Oxygen Species Levels. Cancers (Basel) 2020; 12:cancers12061661. [PMID: 32585852 PMCID: PMC7352565 DOI: 10.3390/cancers12061661] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 06/12/2020] [Accepted: 06/17/2020] [Indexed: 12/18/2022] Open
Abstract
B-Rapidly Accelerated Fibrosarcoma (BRAF) mutations are found in about 50% of melanoma patients. Treatment with Food and Drug Administration (FDA)-approved BRAF and MAP/ERK kinase (MEK) inhibitors has improved progression free and overall survival of patients with BRAF mutant melanoma. However, all responders develop resistance typically within 1 year of treatment with these inhibitors. Evidence indicates that reactive oxygen species (ROS) levels are elevated after BRAF pathway inhibition treatment. We aim to decipher the role of mitochondrial antioxidant proteins relative to ROS levels and BRAF pathway inhibitor resistance. We observed BRAF mutant melanoma cells treated with the combination of a MEK inhibitor (trametinib) and a BRAF inhibitor (dabrafenib), exhibited elevated ROS levels, both in in vitro and in vivo melanoma models. We next generated trametinib- and dabrafenib-resistant (TDR) cells and found increased ROS levels after acquisition of resistance. An immunofluorescence experiment showed an increase of DNA damage in TDR cell lines. Furthermore, we observed that TDR cells increased superoxide dismutase 2 (SOD2), an antioxidant, at both mRNA and protein levels, with the upregulation of the transcription factor Nuclear Factor (NF)-κB. Knockdown of SOD2 significantly reduced the growth of BRAF pathway inhibitor-resistant cells. In addition, the results indicate that TDR cells can be re-sensitized to BRAF pathway inhibitors by the ROS scavenger, N-Acetyl Cysteine (NAC). Overall, these data indicate that BRAF pathway inhibitor-resistant cells can compensate for elevated ROS via increased expression of the antioxidant SOD2.
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Affiliation(s)
- Long Yuan
- James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH 45267-0514, USA; (L.Y.); (R.M.); (H.P.); (S.A.); (X.W.)
| | - Rosalin Mishra
- James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH 45267-0514, USA; (L.Y.); (R.M.); (H.P.); (S.A.); (X.W.)
| | - Hima Patel
- James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH 45267-0514, USA; (L.Y.); (R.M.); (H.P.); (S.A.); (X.W.)
| | - Samar Alanazi
- James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH 45267-0514, USA; (L.Y.); (R.M.); (H.P.); (S.A.); (X.W.)
| | - Xin Wei
- James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH 45267-0514, USA; (L.Y.); (R.M.); (H.P.); (S.A.); (X.W.)
| | - Zhijun Ma
- Department of Chemistry, University of Cincinnati, Cincinnati, OH 45267-0514, USA;
| | - Joan T. Garrett
- James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH 45267-0514, USA; (L.Y.); (R.M.); (H.P.); (S.A.); (X.W.)
- Correspondence: ; Tel.: +1-513-558-0741; Fax: +1-513-558-4372
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Oxidative Stress and Photodynamic Therapy of Skin Cancers: Mechanisms, Challenges and Promising Developments. Antioxidants (Basel) 2020; 9:antiox9050448. [PMID: 32455998 PMCID: PMC7278813 DOI: 10.3390/antiox9050448] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 05/14/2020] [Accepted: 05/21/2020] [Indexed: 12/19/2022] Open
Abstract
Ultraviolet radiation is one of the most pervasive environmental interactions with humans. Chronic ultraviolet irradiation increases the danger of skin carcinogenesis. Probably, oxidative stress is the most important mechanism by which ultraviolet radiation implements its damaging effects on normal cells. However, notwithstanding the data referring to the negative effects exerted by light radiation and oxidative stress on carcinogenesis, both factors are used in the treatment of skin cancer. Photodynamic therapy (PDT) consists of the administration of a photosensitiser, which undergoes excitation after suitable irradiation emitted from a light source and generates reactive oxygen species. Oxidative stress causes a condition in which cellular components, including DNA, proteins, and lipids, are oxidised and injured. Antitumor effects result from the combination of direct tumour cell photodamage, the destruction of tumour vasculature and the activation of an immune response. In this review, we report the data present in literature dealing with the main signalling molecular pathways modified by oxidative stress after photodynamic therapy to target skin cancer cells. Moreover, we describe the progress made in the design of anti-skin cancer photosensitisers, and the new possibilities of increasing the efficacy of PDT via the use of molecules capable of developing a synergistic antineoplastic action.
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The Effect of a Rat Diet Without Added Cu on Redox Status in Tissues and Epigenetic Changes in the Brain. ANNALS OF ANIMAL SCIENCE 2020. [DOI: 10.2478/aoas-2019-0075] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Abstract
The aim of the study was to determine whether feeding rats a diet without added Cu increases oxidation of macromolecules in tissues, as well as epigenetic changes in the brain. The rats were divided into two groups: the Cu-6.5 group which was fed a diet with a standard content of Cu in mineral mixture – 6.5 mg Cu from CuCO3 per kg of diet; and the Cu-0 group which was fed a diet with a mineral mix without Cu supplementation. At the end of the experiment the rats were weighed and blood samples were collected. Finally, the rats were euthanized and then the liver, small intestine, spleen, kidneys, heart, brain, lung, testes and leg muscles were removed and weighed. In the blood of Cu-0 rats the lower Cp activity and greater GPx and CAT activity than in Cu-6.5 rats were noticed. In the liver, lungs, heart and testes of Cu-0 rats, a decreased content of Cu were noticed. Application of Cu-0 diets resulted in increased LOOH level in the small intestine, liver, and heart, as well as increased MDA content in the liver, spleen, lungs, brain and testes. The Cu-0 treatment caused a decrease in SOD activity in the heart, lungs and testes of the rats and a decrease in CAT activity in the small intestine. In the brain and testes of rats from the Cu-0 treatment, lower content of GSH + GSSG was observed. The brain of rats from the Cu-0 treatment showed an increase in the level of PCs, 8-OHdG, Casp 8 and DNA methylation. The research has shown that a deficiency of Cu in the diet impairs the body’s antioxidant defences, which in turn leads to increased lipid oxidation in the liver, small intestinal wall, heart, spleen, lungs, brain and testes, as well as to oxidation of proteins and DNA in the brain. A deficiency of Cu in the diet also increases methylation of cytosine in the brain.
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Lee JW, Ratnakumar K, Hung KF, Rokunohe D, Kawasumi M. Deciphering UV-induced DNA Damage Responses to Prevent and Treat Skin Cancer. Photochem Photobiol 2020; 96:478-499. [PMID: 32119110 DOI: 10.1111/php.13245] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 01/11/2020] [Indexed: 12/11/2022]
Abstract
Ultraviolet (UV) radiation is among the most prevalent environmental factors that influence human health and disease. Even 1 h of UV irradiation extensively damages the genome. To cope with resulting deleterious DNA lesions, cells activate a multitude of DNA damage response pathways, including DNA repair. Strikingly, UV-induced DNA damage formation and repair are affected by chromatin state. When cells enter S phase with these lesions, a distinct mutation signature is created via error-prone translesion synthesis. Chronic UV exposure leads to high mutation burden in skin and consequently the development of skin cancer, the most common cancer in the United States. Intriguingly, UV-induced oxidative stress has opposing effects on carcinogenesis. Elucidating the molecular mechanisms of UV-induced DNA damage responses will be useful for preventing and treating skin cancer with greater precision. Excitingly, recent studies have uncovered substantial depth of novel findings regarding the molecular and cellular consequences of UV irradiation. In this review, we will discuss updated mechanisms of UV-induced DNA damage responses including the ATR pathway, which maintains genome integrity following UV irradiation. We will also present current strategies for preventing and treating nonmelanoma skin cancer, including ATR pathway inhibition for prevention and photodynamic therapy for treatment.
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Affiliation(s)
- Jihoon W Lee
- Division of Dermatology, Department of Medicine, University of Washington, Seattle, WA
| | - Kajan Ratnakumar
- Division of Dermatology, Department of Medicine, University of Washington, Seattle, WA
| | - Kai-Feng Hung
- Division of Translational Research, Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Dentistry, National Yang-Ming University, Taipei, Taiwan
| | - Daiki Rokunohe
- Department of Dermatology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Masaoki Kawasumi
- Division of Dermatology, Department of Medicine, University of Washington, Seattle, WA
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Pogribna M, Koonce NA, Mathew A, Word B, Patri AK, Lyn-Cook B, Hammons G. Effect of titanium dioxide nanoparticles on DNA methylation in multiple human cell lines. Nanotoxicology 2020; 14:534-553. [PMID: 32031460 DOI: 10.1080/17435390.2020.1723730] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 01/07/2020] [Accepted: 01/24/2020] [Indexed: 12/27/2022]
Abstract
Nanoscale titanium dioxide (TiO2) is manufactured in wide scale, with a range of applications in consumer products. Significant toxicity of TiO2 nanoparticles has, however, been recognized, suggesting considerable risk to human health. To evaluate fully their toxicity, assessment of the epigenetic action of these nanoparticles is critical. However, only few studies are available examining capability of nanoparticles to alter epigenetic integrity. In the present study, the effect of TiO2 nanoparticles exposure on DNA methylation, a major epigenetic mechanism, was investigated in in vitro cellular model systems. A panel of cells relevant to portals of human exposure (Caco-2 (colorectal), HepG2 (liver), NL20 (lung), and A-431 (skin)) was exposed to TiO2 nanoparticles to assess effects on global methylation, gene-specific methylation, and expression levels of DNA methyltransferases, MBD2, and UHRF1. Global methylation was determined by enzyme-linked immunosorbent assay-based immunochemical analysis. Degree of promoter methylation across a defined panel of genes was evaluated using EpiTect Methyl II Signature PCR System Array technology. Expression of DNMT1, DNMT3a, DNMT3b, MBD2, and URHF1 was quantified by qRT-PCR. Decrease in global DNA methylation in cell lines Caco-2, HepG2, and A-431 exposed to TiO2 nanoparticles was shown. Across four cell lines, eight genes (CDKN1A, DNAJC15, GADD45A, GDF15, INSIG1, SCARA3, TP53, and BNIP3) were identified in which promotors were methylated after exposure. Altered expression of these genes is associated with disease etiology. The results also revealed aberrant expression of epigenetic regulatory genes involved in DNA methylation (DNMT1, DNMT3a, DNMT3b, MBD2, and UHRF1) in TiO2 exposed cells, which was cell type dependent. Findings from this study clearly demonstrate the impact of TiO2 nanoparticles exposure on DNA methylation in multiple cell types, supporting potential involvement of this epigenetic mechanism in the toxicity of TiO2 nanoparticles. Hence for complete assessment of potential risk from nanoparticle exposure, epigenetic studies are critical.
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Affiliation(s)
- Marta Pogribna
- Division of Biochemical Toxicity, FDA/National Center for Toxicological Research, Jefferson, AR, USA
| | - Nathan A Koonce
- Nanotechology Core, FDA/National Center for Toxicological Research, Jefferson, AR, USA
| | - Ammu Mathew
- Nanotechology Core, FDA/National Center for Toxicological Research, Jefferson, AR, USA
| | - Beverly Word
- Division of Biochemical Toxicity, FDA/National Center for Toxicological Research, Jefferson, AR, USA
| | - Anil K Patri
- Nanotechology Core, FDA/National Center for Toxicological Research, Jefferson, AR, USA
| | - Beverly Lyn-Cook
- Division of Biochemical Toxicity, FDA/National Center for Toxicological Research, Jefferson, AR, USA
| | - George Hammons
- Division of Biochemical Toxicity, FDA/National Center for Toxicological Research, Jefferson, AR, USA
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Licarete E, Rauca VF, Luput L, Drotar D, Stejerean I, Patras L, Dume B, Toma VA, Porfire A, Gherman C, Sesarman A, Banciu M. Overcoming Intrinsic Doxorubicin Resistance in Melanoma by Anti-Angiogenic and Anti-Metastatic Effects of Liposomal Prednisolone Phosphate on Tumor Microenvironment. Int J Mol Sci 2020; 21:ijms21082968. [PMID: 32340166 PMCID: PMC7215436 DOI: 10.3390/ijms21082968] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 04/13/2020] [Accepted: 04/21/2020] [Indexed: 12/31/2022] Open
Abstract
Regardless of recent progress, melanoma is very difficult to treat, mainly due to the drug resistance modulated by tumor cells as well as by the tumor microenvironment (TME). Among the immune cells recruited at the tumor site, tumor associated macrophages (TAMs) are the most abundant, promoting important tumorigenic processes: angiogenesis, inflammation and invasiveness. Furthermore, it has been shown that TAMs are involved in mediating the drug resistance of melanoma cells. Thus, in the present study, we used liposomal formulation of prednisolone disodium phosphate (LCL-PLP) to inhibit the protumor function of TAMs with the aim to sensitize the melanoma cells to the cytotoxic drug doxorubicin (DOX) to which human melanoma has intrinsic resistance. Consequently, we evaluated the in vivo effects of the concomitant administration of LCL-PLP and liposomal formulation of DOX (LCL-DOX) on B16.F10 melanoma growth and on the production of key molecular markers for tumor development. Our results demonstrated that the concomitant administration of LCL-PLP and LCL-DOX induced a strong inhibition of tumor growth, primarily by inhibiting TAMs-mediated angiogenesis as well as the tumor production of MMP-2 and AP-1. Moreover, our data suggested that the combined therapy also affected TME as the number of infiltrated macrophages in melanoma microenvironment was reduced significantly.
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Affiliation(s)
- Emilia Licarete
- Department of Molecular Biology and Biotechnology, Faculty of Biology and Geology, Babes-Bolyai University, 400006 Cluj-Napoca, Romania; (E.L.); (V.F.R.); (L.L.); (D.D.); (I.S.); (L.P.); (B.D.); (V.A.T.); (M.B.)
- Molecular Biology Centre, Institute for Interdisciplinary Research in Bio-Nano-Sciences, Babes-Bolyai University, 400271 Cluj-Napoca, Romania
| | - Valentin Florian Rauca
- Department of Molecular Biology and Biotechnology, Faculty of Biology and Geology, Babes-Bolyai University, 400006 Cluj-Napoca, Romania; (E.L.); (V.F.R.); (L.L.); (D.D.); (I.S.); (L.P.); (B.D.); (V.A.T.); (M.B.)
- Centre of Systems Biology, Biodiversity and Bioresources, Faculty of Biology and Geology, Babes-Bolyai University, 400006 Cluj-Napoca, Romania
| | - Lavinia Luput
- Department of Molecular Biology and Biotechnology, Faculty of Biology and Geology, Babes-Bolyai University, 400006 Cluj-Napoca, Romania; (E.L.); (V.F.R.); (L.L.); (D.D.); (I.S.); (L.P.); (B.D.); (V.A.T.); (M.B.)
- Centre of Systems Biology, Biodiversity and Bioresources, Faculty of Biology and Geology, Babes-Bolyai University, 400006 Cluj-Napoca, Romania
| | - Denise Drotar
- Department of Molecular Biology and Biotechnology, Faculty of Biology and Geology, Babes-Bolyai University, 400006 Cluj-Napoca, Romania; (E.L.); (V.F.R.); (L.L.); (D.D.); (I.S.); (L.P.); (B.D.); (V.A.T.); (M.B.)
| | - Ioana Stejerean
- Department of Molecular Biology and Biotechnology, Faculty of Biology and Geology, Babes-Bolyai University, 400006 Cluj-Napoca, Romania; (E.L.); (V.F.R.); (L.L.); (D.D.); (I.S.); (L.P.); (B.D.); (V.A.T.); (M.B.)
| | - Laura Patras
- Department of Molecular Biology and Biotechnology, Faculty of Biology and Geology, Babes-Bolyai University, 400006 Cluj-Napoca, Romania; (E.L.); (V.F.R.); (L.L.); (D.D.); (I.S.); (L.P.); (B.D.); (V.A.T.); (M.B.)
- Centre of Systems Biology, Biodiversity and Bioresources, Faculty of Biology and Geology, Babes-Bolyai University, 400006 Cluj-Napoca, Romania
| | - Bogdan Dume
- Department of Molecular Biology and Biotechnology, Faculty of Biology and Geology, Babes-Bolyai University, 400006 Cluj-Napoca, Romania; (E.L.); (V.F.R.); (L.L.); (D.D.); (I.S.); (L.P.); (B.D.); (V.A.T.); (M.B.)
| | - Vlad Alexandru Toma
- Department of Molecular Biology and Biotechnology, Faculty of Biology and Geology, Babes-Bolyai University, 400006 Cluj-Napoca, Romania; (E.L.); (V.F.R.); (L.L.); (D.D.); (I.S.); (L.P.); (B.D.); (V.A.T.); (M.B.)
- Institute of Biological Research, 400015 Cluj-Napoca, Romania
- National Institute for Research and Development of Isotopic and Molecular Technologies, 400293 Cluj-Napoca, Romania
| | - Alina Porfire
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, Iuliu Hatieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania;
| | - Claudia Gherman
- Department of Functional Genomics and Experimental Pathology, The Oncology Institute “Prof. Dr. Ion Chiricuta”, 400015 Cluj-Napoca, Romania;
| | - Alina Sesarman
- Department of Molecular Biology and Biotechnology, Faculty of Biology and Geology, Babes-Bolyai University, 400006 Cluj-Napoca, Romania; (E.L.); (V.F.R.); (L.L.); (D.D.); (I.S.); (L.P.); (B.D.); (V.A.T.); (M.B.)
- Centre of Systems Biology, Biodiversity and Bioresources, Faculty of Biology and Geology, Babes-Bolyai University, 400006 Cluj-Napoca, Romania
- Correspondence: ; Tel.: +40-264-431-691; Fax: +40-264-431-858
| | - Manuela Banciu
- Department of Molecular Biology and Biotechnology, Faculty of Biology and Geology, Babes-Bolyai University, 400006 Cluj-Napoca, Romania; (E.L.); (V.F.R.); (L.L.); (D.D.); (I.S.); (L.P.); (B.D.); (V.A.T.); (M.B.)
- Centre of Systems Biology, Biodiversity and Bioresources, Faculty of Biology and Geology, Babes-Bolyai University, 400006 Cluj-Napoca, Romania
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Wen S, Zhang J, Yang B, Elias PM, Man MQ. Role of Resveratrol in Regulating Cutaneous Functions. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2020; 2020:2416837. [PMID: 32382280 PMCID: PMC7180429 DOI: 10.1155/2020/2416837] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 03/24/2020] [Indexed: 01/09/2023]
Abstract
Protective role of the skin is against external insults and maintenance of electrolyte homeostasis of the body. Cutaneous dysfunction can account for the development of both cutaneous and systemic disorders. Thus, improvements in cutaneous functions can benefit a number of extracutaneous and cutaneous functions. Resveratrol, a natural ingredient, displays multiple benefits for various systems/organs, including the skin. The benefits of resveratrol for cutaneous functions include stimulation of keratinocyte differentiation and antimicrobial peptide expression, inhibition of keratinocyte proliferation and cutaneous inflammation, UV protection, anticancer, antiaging, and inhibition of melanogenesis. The mechanisms of action of resveratrol include activation of sirtuin 1 and nuclear factor erythroid 2-related factor 2, and inhibition of mitogen-activated protein kinase signaling. Evidence suggests that topical resveratrol could be a valuable alternative not only for daily skin care, but also for the prevention and treatment of various cutaneous disorders. This review summarizes the benefits of resveratrol for cutaneous functions.
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Affiliation(s)
- Si Wen
- Dermatology Hospital, Southern Medical University, Guangzhou 510091, China
| | - Jiechen Zhang
- Department of Dermatology, Huadong Hospital, Fudan University, Shanghai 200040, China
| | - Bin Yang
- Dermatology Hospital, Southern Medical University, Guangzhou 510091, China
| | - Peter M. Elias
- Department of Dermatology, University of California San Francisco and Veterans Affairs Medical Center, San Francisco, CA 94121, USA
| | - Mao-Qiang Man
- Dermatology Hospital, Southern Medical University, Guangzhou 510091, China
- Department of Dermatology, University of California San Francisco and Veterans Affairs Medical Center, San Francisco, CA 94121, USA
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Xu W, Yan Z, Hu F, Wei W, Yang C, Sun Z. Long non-coding RNA GAS5 accelerates oxidative stress in melanoma cells by rescuing EZH2-mediated CDKN1C downregulation. Cancer Cell Int 2020; 20:116. [PMID: 32308561 PMCID: PMC7146881 DOI: 10.1186/s12935-020-01167-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 03/09/2020] [Indexed: 02/06/2023] Open
Abstract
Background The significance of long non-coding RNAs (lncRNAs) in mediating oxidative stress of cancers has been implicated recently. This study proposed a potential therapeutic target lncRNA growth arrest-specific transcript 5 (GAS5) for melanoma, due to its crucial role in oxidative stress and apoptosis of melanoma cells by regulating the enhancer of zeste homolog 2 (EZH2)-mediated CDKN1C expression. Methods The lncRNA GAS5 expression pattern was examined in melanoma tissues and cells. The correlation of lncRNA GAS5, EZH2, and CDKN1C with survival rate of melanoma patients was analyzed. In melanoma cell lines, lncRNA GAS5 expression was overexpressed or knocked down to clarify its effects on cell viability, apoptosis, and oxidative stress. The interaction between lncRNA GAS5 and EZH2 was examined by RIP and RNA pull-down assays followed by verification of the target relationship between EZH2 and CDKN1C. Results High expression of EZH2 and poor expression of lncRNA GAS5 and CDKN1C was observed in melanoma tissues and found to be correlated with the reduction in survival expectancy of melanoma patients. Overexpression of lncRNA GAS5 or CDKN1C or EZH2 knockdown could inhibit cell viability but enhance melanoma cell apoptosis and oxidative stress. Importantly, lncRNA GAS5 attenuated EZH2 expression by recruiting E2F4 to the EZH2 promoter region and knockdown of EZH2 upregulated CDKN1C expression by inhibiting the H3K27me3. Conclusion The evidence provided by our study highlighted the involvement of lncRNA GAS5 in the translational suppression of EZH2 as well as the upregulation of CDKN1C, resulting in the promotion of melanoma cell apoptosis and oxidative stress.
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Affiliation(s)
- Wei Xu
- 1Department of Dermatology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, 441021 People's Republic of China
| | - Zeqiang Yan
- 2Department of Gastroenterology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, 441021 People's Republic of China
| | - Fen Hu
- 3Department of Oncology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Dongjin District, Xiangyang, 441021 People's Republic of China
| | - Wei Wei
- 3Department of Oncology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Dongjin District, Xiangyang, 441021 People's Republic of China
| | - Chao Yang
- 3Department of Oncology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Dongjin District, Xiangyang, 441021 People's Republic of China
| | - Zhihua Sun
- 3Department of Oncology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Dongjin District, Xiangyang, 441021 People's Republic of China
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Ognik K, Konieczka P, Mikulski D, Jankowski J. The effect of different dietary ratios of lysine and arginine in diets with high or low methionine levels on oxidative and epigenetic DNA damage, the gene expression of tight junction proteins and selected metabolic parameters in Clostridium perfringens-challenged turkeys. Vet Res 2020; 51:50. [PMID: 32264939 PMCID: PMC7140342 DOI: 10.1186/s13567-020-00776-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 03/27/2020] [Indexed: 12/19/2022] Open
Abstract
Two experiments were performed to investigate the effect of different ratios of arginine (Arg) to lysine (Lys) in diets with low (30% Lys; Experiment 1) and high (45% Lys; Experiment 2) methionine (Met) levels on selected metabolic parameters, oxidative and epigenetic DNA damage, and the mechanisms underlying intestinal barrier integrity in turkeys challenged with Clostridium perfringens. In each experiment, 108 one-day-old Hybrid Converter female turkeys were placed in 6 pens (18 birds per pen) and reared for 42 days. At 34, 36 and 37 days of age, half of the birds were subjected to C. perfringens challenge. A 3 × 2 factorial design with three levels of Arg relative to Lys (90, 100 and 110%; Arg90, Arg100 and Arg110, respectively) and C. perfringens infection (-, +) was employed. Challenging birds with C. perfringens increased lipid oxidation and the oxidation and methylation of DNA of intestinal mucosa, and down-regulated the activities of DNA-repairing enzymes. Neither the dietary treatment nor the challenge affected the markers of liver function or metabolism. Arg110 diets with the high Met level induced DNA oxidation and methylation whereas these processes were downregulated in birds fed Arg90 diets. The results indicate that Arg90 diets with high Met levels have a beneficial influence on the indicators of intestinal barrier integrity in turkeys with necrotic enteritis (NE). Despite the analyzed amino acid ratios interacted with the systems responsible for the maintenance of gut integrity in the host organism, this dietary intervention probably enabled birds to cope with NE.
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Affiliation(s)
- Katarzyna Ognik
- Department of Biochemistry and Toxicology, University of Life Sciences, 20-950, Lublin, Poland
| | - Paweł Konieczka
- Department of Poultry Science, University of Warmia and Mazury in Olsztyn, 10-719, Olsztyn, Poland.
| | - Dariusz Mikulski
- Department of Poultry Science, University of Warmia and Mazury in Olsztyn, 10-719, Olsztyn, Poland
| | - Jan Jankowski
- Department of Poultry Science, University of Warmia and Mazury in Olsztyn, 10-719, Olsztyn, Poland
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Panich U, Slominski AT. Editorial: Redox Biology of Skin Aging and Carcinogenesis: the Role of Natural Antioxidants as Potential Protective Agents. Front Pharmacol 2020; 11:249. [PMID: 32210823 PMCID: PMC7069100 DOI: 10.3389/fphar.2020.00249] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 02/24/2020] [Indexed: 11/25/2022] Open
Affiliation(s)
- Uraiwan Panich
- Department of Pharmacology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Andrzej T Slominski
- Department of Dermatology, University of Alabama at Birmingham, Birmingham, AL, United States.,Comprehensive Cancer Center, Cancer Chemoprevention Program, University of Alabama at Birmingham, Birmingham, AL, United States.,VA Medical Center, Birmingham, AL, United States
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Kuršvietienė L, Mongirdienė A, Bernatonienė J, Šulinskienė J, Stanevičienė I. Selenium Anticancer Properties and Impact on Cellular Redox Status. Antioxidants (Basel) 2020; 9:antiox9010080. [PMID: 31963404 PMCID: PMC7023255 DOI: 10.3390/antiox9010080] [Citation(s) in RCA: 93] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 01/07/2020] [Accepted: 01/15/2020] [Indexed: 12/25/2022] Open
Abstract
(1) Background: In this review, we provide information published in recent years on the chemical forms, main biological functions and especially on antioxidant and prooxidant activities of selenium. The main focus is put on the impact of selenoproteins on maintaining cellular redox balance and anticancerogenic function. Moreover, we summarize data on chemotherapeutic application of redox active selenium compounds. (2) Methods: In the first section, main aspects of metabolism and redox activity of selenium compounds is reviewed. The second outlines multiple biological functions, asserted when selenium is incorporated into the structure of selenoproteins. The final section focuses on anticancer activity of selenium and chemotherapeutic application of redox active selenium compounds as well. (3) Results: optimal dietary level of selenium ensures its proper antioxidant and anticancer activity. We pay special attention to antioxidant activities of selenium compounds, especially selenoproteins, and their importance in antioxidant defence. It is worth noting, that data on selenium anticancer properties is still contraversive. Moreover, selenium compounds as chemotherapeutic agents usually are used at supranutritional doses. (4) Conclusions: Selenium play a vital role for many organism systems due to its incorporation into selenoproteins structure. Selenium possesses antioxidant activity at optimal doses, while at supranutritional doses, it displays prooxidant activity. Redox active selenium compounds can be used for cancer treatment; recently special attention is put to selenium containing nanoparticles.
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Affiliation(s)
- Lolita Kuršvietienė
- Department of Biochemistry, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania; (L.K.); (A.M.); (J.Š.)
| | - Aušra Mongirdienė
- Department of Biochemistry, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania; (L.K.); (A.M.); (J.Š.)
| | - Jurga Bernatonienė
- Department of Drug Technology and Social Pharmacy, Lithuanian University of Health Sciences, LT-50162 Kaunas, Lithuania;
- Institute of Pharmaceutical Technologies, Lithuanian University of Health Sciences, LT-50162 Kaunas, Lithuania
| | - Jurgita Šulinskienė
- Department of Biochemistry, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania; (L.K.); (A.M.); (J.Š.)
- Institute of Neurosciences, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania
| | - Inga Stanevičienė
- Department of Biochemistry, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania; (L.K.); (A.M.); (J.Š.)
- Correspondence: ; Tel.: +370-6157-4010
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Berczyński P, Kładna A, Bozdağ Dündar O, Murat HN, Sarı E, Kruk I, Aboul-Enein HY. Preparation and in vitro antioxidant activity of some novel flavone analogues bearing piperazine moiety. Bioorg Chem 2020; 95:103513. [DOI: 10.1016/j.bioorg.2019.103513] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 11/16/2019] [Accepted: 12/16/2019] [Indexed: 01/23/2023]
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Mutant p53 induces SIRT3/MnSOD axis to moderate ROS production in melanoma cells. Arch Biochem Biophys 2019; 679:108219. [PMID: 31812668 DOI: 10.1016/j.abb.2019.108219] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 11/12/2019] [Accepted: 12/03/2019] [Indexed: 12/15/2022]
Abstract
The TP53 tumor suppressor gene is the most frequently altered gene in tumors and mutant p53 isoforms can acquire oncogenic properties referred to as gain-of-function (GOF). In this study, we used wild-type (A375) and mutant p53 (MeWo) melanoma cell lines to assess the regulation of the mitochondrial antioxidant manganese superoxide dismutase (MnSOD) by mutant p53. The effects of mutant p53 were evaluated by qPCR, immunoblotting, enzyme activity assay, cell proliferation assay, reactive oxygen species (ROS) assay after cellular transfection. We demonstrate that mutant p53 induces MnSOD expression, which is recovered by the ROS scavenger N-acetyl-l-cysteine. This suggests MnSOD induction as a defense mechanism of melanoma cells to counterbalance the pro-oxidant conditions induced by mutant p53. We also demonstrate that mutant p53 induces the expression of Sirtuin3 (SIRT3), a major mitochondrial NAD+-dependent deacetylase, stimulating MnSOD deacetylation and enzymatic activity. Indeed, the restoration of SIRT3 reverses MnSOD activity decrease by mutant p53 knock-down. Finally, MnSOD knock-down further enhances mutant p53-mediated ROS increase, counteracting mutp53-dependent cell hyperproliferation. This indicates that SIRT3 and MnSOD act to maintain ROS levels controlled to promote cell proliferation and survival, providing new therapeutic opportunities to be further considered for clinical studies in cancer patients bearing mutant TP53 gene.
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37
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Kumar JP, Mandal BB. The inhibitory effect of silk sericin against ultraviolet-induced melanogenesis and its potential use in cosmeceutics as an anti-hyperpigmentation compound. Photochem Photobiol Sci 2019; 18:2497-2508. [PMID: 31432056 DOI: 10.1039/c9pp00059c] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Ultraviolet radiation (UVR)-induced redox imbalance in melanocytes triggers the activation of tyrosinase that results in melanogenesis and its related skin disorders. Supplementation of biological reductants or anti-tyrosinase compounds inhibits such melanogenesis. Silk sericin (SS), a globular protein, is known to possess antioxidant and anti-tyrosinase activities along with other biological attributes. However, its inhibitory activity against UVR-induced melanogenesis has yet to be explored. In the current study, we have scientifically explored the inhibitory activity of SS against UVR-induced melanogenesis. Anti-tyrosinase activity of SS was assessed using mushroom tyrosinase, showing that Antheraea assamensis sericin (AAS) and Philosamia ricini sericin (PRS) inhibited 50% of its activity. Inhibitory activity of SS against UVR-induced melanogenesis was assessed by measuring the cellular melanin content, intracellular tyrosinase activity, and reactive oxygen species (ROS) levels in mouse melanoma. SS pretreatment significantly reduced cellular melanin and ROS production in UV irradiated melanocytes compared with SS untreated cells. AAS treatment before UVA or UVB irradiation significantly inhibited tyrosinase activity. Rheological studies showed that the skin care formulation prepared by the addition of AAS to the basic formulation minimally affected its flow properties. Altogether, our results validate that AAS efficiently inhibited UVR-induced melanogenesis and it could be used as a potential antioxidant molecule in skin care cosmeceutics.
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Affiliation(s)
- Jadi Praveen Kumar
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India.
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Ryu YS, Kang KA, Piao MJ, Ahn MJ, Yi JM, Bossis G, Hyun YM, Park CO, Hyun JW. Particulate matter-induced senescence of skin keratinocytes involves oxidative stress-dependent epigenetic modifications. Exp Mol Med 2019; 51:1-14. [PMID: 31551408 PMCID: PMC6802667 DOI: 10.1038/s12276-019-0305-4] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 05/14/2019] [Accepted: 06/12/2019] [Indexed: 01/05/2023] Open
Abstract
Ambient air particulate matter (PM) induces senescence in human skin cells. However, the underlying mechanisms remain largely unknown. We investigated how epigenetic regulatory mechanisms participate in cellular senescence induced by PM with a diameter <2.5 (PM2.5) in human keratinocytes and mouse skin tissues. PM2.5-treated cells exhibited characteristics of cellular senescence. PM2.5 induced a decrease in DNA methyltransferase (DNMT) expression and an increase in DNA demethylase (ten-eleven translocation; TET) expression, leading to hypomethylation of the p16INK4A promoter region. In addition, PM2.5 led to a decrease in polycomb EZH2 histone methyltransferase expression, whereas the expression of the epigenetic transcriptional activator MLL1 increased. Furthermore, binding of DNMT1, DNMT3B, and EZH2 to the promoter region of p16INK4A decreased in PM2.5-treated keratinocytes, whereas TET1 and MLL1 binding increased, leading to decreased histone H3 lysine 27 trimethylation (H3K27Me3) and increased H3K4Me3 in the promoter of p16INK4A. PM2.5-induced senescence involved aryl hydrocarbon receptor (AhR)-induced reactive oxygen species (ROS) production. ROS scavenging dampened PM2.5-induced cellular senescence through regulation of DNA and histone methylation. Altogether, our work shows that skin senescence induced by environmental PM2.5 occurs through ROS-dependent the epigenetic modification of senescence-associated gene expression. Our findings provide information for the design of preventive and therapeutic strategies against skin senescence, particularly in light of the increasing problem of PM2.5 exposure due to air pollution.
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Affiliation(s)
- Yea Seong Ryu
- Jeju National University School of Medicine and Jeju Research Center for Natural Medicine, Jeju, 63243, Republic of Korea
| | - Kyoung Ah Kang
- Jeju National University School of Medicine and Jeju Research Center for Natural Medicine, Jeju, 63243, Republic of Korea
| | - Mei Jing Piao
- Jeju National University School of Medicine and Jeju Research Center for Natural Medicine, Jeju, 63243, Republic of Korea
| | - Mee Jung Ahn
- Laboratory of Veterinary Anatomy, College of Veterinary Medicine, Jeju National University, Jeju, 63243, Republic of Korea
| | - Joo Mi Yi
- Department of Microbiology and Immunology, Inje University College of Medicine, Busan, 47392, Republic of Korea
| | - Guillaume Bossis
- Institut de Génétique Moléculaire de Montpellier, University of Montpellier, CNRS, Montpellier, France
| | - Young-Min Hyun
- Department of Anatomy, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Chang Ook Park
- Department of Dermatology & Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Jin Won Hyun
- Jeju National University School of Medicine and Jeju Research Center for Natural Medicine, Jeju, 63243, Republic of Korea.
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Organogermanium suppresses cell death due to oxidative stress in normal human dermal fibroblasts. Sci Rep 2019; 9:13637. [PMID: 31541125 PMCID: PMC6754400 DOI: 10.1038/s41598-019-49883-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 08/30/2019] [Indexed: 12/23/2022] Open
Abstract
Reactive oxygen species (ROS) are very harmful to dermal cells, and it is thus important to develop cosmetics that protect the skin from ROS and other stimuli. Repagermanium is a synthetic water-soluble organogermanium polymer, and in this study, we attempted to visualize the incorporation of germanium into normal human dermal fibroblasts (NHDFs) using isotope microscopy. In addition, the content of 3-(trihydroxygermyl)propanoic acid (THGP), a hydrolyzed monomer of repagermanium, in NHDFs was determined through liquid chromatography mass spectrometry (LC-MS/MS), and the dose-dependent incorporation of THGP was confirmed. We then evaluated the preventive effects of THGP against ROS-induced NHDF death and confirmed the observed preventive effects through gene profiling and expression analysis. The addition of 0.59–5.9 mM THGP reduced cell death resulting from ROS damage caused by the reaction between xanthine oxidase and hypoxanthine and the direct addition of H2O2. Furthermore, this study provides the first demonstration that the effect of THGP was not due to the direct scavenging of ROS, which indicates that the mechanism of THGP differs from that of general antioxidants, such as ascorbic acid. The gene profiling and expression analysis showed that THGP suppressed the expression of the nuclear receptor subfamily 4 group A member 2 (NR4A2) gene, which is related to cell death, and the interleukin 6 (IL6) and chemokine (C-X-C motif) ligand 2 (CXCL2) genes, which are related to the inflammatory response. Furthermore, the production of IL6 induced by H2O2 was suppressed by the THGP treatment. Our data suggest that the preventive effect of THGP against ROS-induced cell death is not due to antioxidant enzymes or ROS scavenging.
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40
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Rahimi S, Naserzadeh P, Mousavi Z, Ashtari K, Seydi E, Pourahmad J. Nickel oxide nanoparticles exert selective toxicity on skin mitochondria and lysosomes isolated from the mouse model of melanoma. J Biochem Mol Toxicol 2019; 33:e22376. [DOI: 10.1002/jbt.22376] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 04/12/2019] [Accepted: 06/17/2019] [Indexed: 01/15/2023]
Affiliation(s)
- Shabnam Rahimi
- Department of Toxicology & Pharmacology, Faculty of Pharmacy, Pharmaceutical Sciences BranchIslamic Azad University (IAUPS) Tehran Iran
| | - Parvaneh Naserzadeh
- Department of Pharmacology and Toxicology, Faculty of PharmacyShahid Beheshti University of Medical Sciences Tehran Iran
- Students Research Committee, School of PharmacyShahid Beheshti University of Medical Sciences Tehran Iran
| | - Zahra Mousavi
- Department of Toxicology & Pharmacology, Faculty of Pharmacy, Pharmaceutical Sciences BranchIslamic Azad University (IAUPS) Tehran Iran
| | - Khadijeh Ashtari
- Radiation Biology Research CenterIran University of Medical Sciences Tehran Iran
- Department of Medical Nanotechnology, Faculty of Advanced Technology in MedicineIran University of Medical Sciences Tehran Iran
| | - Enayatollah Seydi
- Department of Occupational Health and Safety Engineering, School of HealthAlborz University of Medical Sciences Karaj Iran
- Research Center for Health, Safety and EnvironmentAlborz University of Medical Sciences Karaj Iran
| | - Jalal Pourahmad
- Department of Pharmacology and Toxicology, Faculty of PharmacyShahid Beheshti University of Medical Sciences Tehran Iran
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41
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Chiang TC, Koss B, Su LJ, Washam CL, Byrum SD, Storey A, Tackett AJ. Effect of Sulforaphane and 5-Aza-2'-Deoxycytidine on Melanoma Cell Growth. MEDICINES 2019; 6:medicines6030071. [PMID: 31252639 PMCID: PMC6789461 DOI: 10.3390/medicines6030071] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 06/21/2019] [Accepted: 06/24/2019] [Indexed: 12/12/2022]
Abstract
Background: UV exposure-induced oxidative stress is implicated as a driving mechanism for melanoma. Increased oxidative stress results in DNA damage and epigenetic dysregulation. Accordingly, we explored whether a low dose of the antioxidant sulforaphane (SFN) in combination with the epigenetic drug 5-aza-2’-deoxycytidine (DAC) could slow melanoma cell growth. SFN is a natural bioactivated product of the cruciferous family, while DAC is a DNA methyltransferase inhibitor. Methods: Melanoma cell growth characteristics, gene transcription profiles, and histone epigenetic modifications were measured after single and combination treatments with SFN and DAC. Results: We detected melanoma cell growth inhibition and specific changes in gene expression profiles upon combinational treatments with SFN and DAC, while no significant alterations in histone epigenetic modifications were observed. Dysregulated gene transcription of a key immunoregulator cytokine—C-C motif ligand 5 (CCL-5)—was validated. Conclusions: These results indicate a potential combinatorial effect of a dietary antioxidant and an FDA-approved epigenetic drug in controlling melanoma cell growth.
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Affiliation(s)
- Tung-Chin Chiang
- Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA.
| | - Brian Koss
- Department of Biochemistry & Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - L Joseph Su
- Winthrop P. Rockefeller Cancer Institute, Cancer Prevention and Population Sciences Program & Department of Epidemiology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Charity L Washam
- Department of Biochemistry & Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
- Arkansas Children's Research Institute, Little Rock, AR 72202, USA
| | - Stephanie D Byrum
- Department of Biochemistry & Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
- Arkansas Children's Research Institute, Little Rock, AR 72202, USA
| | - Aaron Storey
- Department of Biochemistry & Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Alan J Tackett
- Department of Biochemistry & Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA.
- Arkansas Children's Research Institute, Little Rock, AR 72202, USA.
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Emerging Roles of Redox-Mediated Angiogenesis and Oxidative Stress in Dermatoses. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:2304018. [PMID: 31178954 PMCID: PMC6501144 DOI: 10.1155/2019/2304018] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 02/14/2019] [Accepted: 03/14/2019] [Indexed: 12/24/2022]
Abstract
Angiogenesis is the process of new vessel formation, which sprouts from preexisting vessels. This process is highly complex and primarily involves several key steps, including stimulation of endothelial cells by growth factors, degradation of the extracellular matrix by proteolytic enzymes, migration and proliferation of endothelial cells, and capillary tube formation. Currently, it is considered that multiple cytokines play a vital role in this process, which consist of proangiogenic factors (e.g., vascular endothelial growth factor, fibroblast growth factors, and angiopoietins) and antiangiogenic factors (e.g., endostatin, thrombospondin, and angiostatin). Angiogenesis is essential for most physiological events, such as body growth and development, tissue repair, and wound healing. However, uncontrolled neovascularization may contribute to angiogenic disorders. In physiological conditions, the above promoters and inhibitors function in a coordinated way to induce and sustain angiogenesis within a limited period of time. Conversely, the imbalance between proangiogenic and antiangiogenic factors could cause pathological angiogenesis and trigger several diseases. With insights into the molecular mechanisms of angiogenesis, increasing reports have shown that a close relationship exists between angiogenesis and oxidative stress (OS) in both physiological and pathological conditions. OS, an imbalance between prooxidant and antioxidant systems, is a cause and consequence of many vascular complains and serves as one of the biomarkers for these diseases. Furthermore, emerging evidence supports that OS and angiogenesis play vital roles in many dermatoses, such as psoriasis, atopic dermatitis, and skin tumor. This review summarizes recent findings on the role of OS as a trigger of angiogenesis in skin disorders, highlights newly identified mechanisms, and introduces the antiangiogenic and antioxidant therapeutic strategies.
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Rauca VF, Vlase L, Casian T, Sesarman A, Gheldiu AM, Mocan A, Banciu M, Toiu A. Biologically Active Ajuga Species Extracts Modulate Supportive Processes for Cancer Cell Development. Front Pharmacol 2019; 10:334. [PMID: 31024305 PMCID: PMC6460044 DOI: 10.3389/fphar.2019.00334] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 03/19/2019] [Indexed: 12/13/2022] Open
Abstract
Backround:Ajuga species have been used in traditional medicine for their diuretic, anti-inflammatory, wound-healing, and hepatoprotective properties. Purpose: The phytochemical profile and anticancer potential of three Ajuga sp. (A. genevensis, A. chamaepitys, and A. laxmannii) from Romania was investigated. Materials and Methods: The phytochemicals were extracted from the aerial parts of Ajuga sp. by using different solvents and methods. The hydroalcoholic extracts were examined for total phenolic, flavonoid and iridoid contents, and HPLC/MS was used to analyze the polyphenolic compounds and iridoids. The phytochemical profile was also evaluated by principal component analysis in connection with antitumor efficacy of extracts. The antiproliferative potential was evaluated using the ELISA BrdU-colorimetric immunoassay. Western Blot with regard to inflammatory protein NF-κB (nuclear factor kappa-light-chain-enhancer of activated B cells) p65 subunit expression in cell lysates was performed. Quantification of oxidative stress marker malondialdehyde (MDA) was determined by high-performance liquid chromatography (HPLC). Enzymatic and non-enzymatic antioxidant capability was assessed by measuring catalase activity and by evaluating the total antioxidant capacity (TAC) of treated cells. Results:Ajuga laxmannii ethanol extract showed the highest total phenolic and flavonoid content, while A. genevensis ethanol extract was more abundant in iridoids. The overall cytostatic effect of the investigated plant extracts was exerted through strong inhibitory actions on NF-κB, the key molecule involved in the inflammatory response and via oxidative stress modulatory effects in both murine colon carcinoma and melanoma cell lines. Conclusion:Ajuga laxmannii showed the most significant antitumor activity and represents an important source of bioactive compounds, possibly an additional form of treatment alongside conventional anticancer drugs.
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Affiliation(s)
- Valentin-Florian Rauca
- Department of Molecular Biology and Biotechnology, Faculty of Biology and Geology, Babes-Bolyai University, Cluj-Napoca, Romania.,Molecular Biology Centre, Institute for Interdisciplinary Research in Bio-Nano-Sciences, Babes-Bolyai University, Cluj-Napoca, Romania
| | - Laurian Vlase
- Department of Pharmaceutical Technology and Biopharmacy, "Iuliu Haţieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Tibor Casian
- Department of Pharmaceutical Technology and Biopharmacy, "Iuliu Haţieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Alina Sesarman
- Department of Molecular Biology and Biotechnology, Faculty of Biology and Geology, Babes-Bolyai University, Cluj-Napoca, Romania.,Molecular Biology Centre, Institute for Interdisciplinary Research in Bio-Nano-Sciences, Babes-Bolyai University, Cluj-Napoca, Romania
| | - Ana-Maria Gheldiu
- Department of Pharmaceutical Botany, "Iuliu Haţieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Andrei Mocan
- Department of Pharmaceutical Botany, "Iuliu Haţieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Manuela Banciu
- Department of Molecular Biology and Biotechnology, Faculty of Biology and Geology, Babes-Bolyai University, Cluj-Napoca, Romania.,Molecular Biology Centre, Institute for Interdisciplinary Research in Bio-Nano-Sciences, Babes-Bolyai University, Cluj-Napoca, Romania
| | - Anca Toiu
- Department of Pharmacognosy, "Iuliu Haţieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
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Parascandolo A, Laukkanen MO. Carcinogenesis and Reactive Oxygen Species Signaling: Interaction of the NADPH Oxidase NOX1-5 and Superoxide Dismutase 1-3 Signal Transduction Pathways. Antioxid Redox Signal 2019; 30:443-486. [PMID: 29478325 PMCID: PMC6393772 DOI: 10.1089/ars.2017.7268] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 02/21/2018] [Accepted: 02/22/2018] [Indexed: 02/06/2023]
Abstract
SIGNIFICANCE Reduction/oxidation (redox) balance could be defined as an even distribution of reduction and oxidation complementary processes and their reaction end products. There is a consensus that aberrant levels of reactive oxygen species (ROS), commonly observed in cancer, stimulate primary cell immortalization and progression of carcinogenesis. However, the mechanism how different ROS regulate redox balance is not completely understood. Recent Advances: In the current review, we have summarized the main signaling cascades inducing NADPH oxidase NOX1-5 and superoxide dismutase (SOD) 1-3 expression and their connection to cell proliferation, immortalization, transformation, and CD34+ cell differentiation in thyroid, colon, lung, breast, and hematological cancers. CRITICAL ISSUES Interestingly, many of the signaling pathways activating redox enzymes or mediating the effect of ROS are common, such as pathways initiated from G protein-coupled receptors and tyrosine kinase receptors involving protein kinase A, phospholipase C, calcium, and small GTPase signaling molecules. FUTURE DIRECTIONS The clarification of interaction of signal transduction pathways could explain how cells regulate redox balance and may even provide means to inhibit the accumulation of harmful levels of ROS in human pathologies.
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Ognik K, Cholewińska E, Juśkiewicz J, Zduńczyk Z, Tutaj K, Szlązak R. The effect of copper nanoparticles and copper (II) salt on redox reactions and epigenetic changes in a rat model. J Anim Physiol Anim Nutr (Berl) 2019; 103:675-686. [PMID: 30618103 DOI: 10.1111/jpn.13025] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Revised: 09/28/2018] [Accepted: 10/25/2018] [Indexed: 12/26/2022]
Abstract
The aim of the study was to evaluate the effects of a diet containing different levels of Cu in two different chemical forms (carbonate and nanoparticles) on redox reactions and epigenetic changes in a rat model. For 4 weeks, five experimental groups (eight rats in each) were fed diets with two dosages of added Cu (standard-6.5 mg/kg or half of the standard dosage-3.25 mg/kg, and as a negative control no additional Cu in the mineral mixture) in two forms (standard-CuCO3 and copper nanoparticles). Addition of Cu nanoparticles resulted in higher Cp (ceruloplasmin) activity and LOOH (lipid peroxides) and MDA (malondialdehyde) content, as well as decrease the CAT (catalase) activity and level of PC (protein carbonyl), 3-NT (3-nitrotyrosine), 8-OHdG (8-hydroxydeoxyguanosine), GSH + GSSG (total glutathione) and DNA methylation. Reducing the dose of copper resulted in a decrease in the level of LOOH and GSH + GSSG as well as CAT activity, but increased the level of PC and methylated DNA. Based on these evidence, we concluded that addition of copper nanoparticles in the diet reduces protein oxidation and nitration as well as DNA oxidation and methylation. Lowering the level of Cu in the diet increases the oxidation of proteins and DNA methylation.
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Affiliation(s)
- Katarzyna Ognik
- Department of Biochemistry and Toxicology, Faculty of Biology, Animal Sciences and Bioeconomy, University of Life Science in Lublin, Lublin, Poland
| | - Ewelina Cholewińska
- Department of Biochemistry and Toxicology, Faculty of Biology, Animal Sciences and Bioeconomy, University of Life Science in Lublin, Lublin, Poland
| | - Jerzy Juśkiewicz
- Division of Food Science, Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences, Olsztyn, Poland
| | - Zenon Zduńczyk
- Division of Food Science, Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences, Olsztyn, Poland
| | - Krzysztof Tutaj
- Department of Biochemistry and Toxicology, Faculty of Biology, Animal Sciences and Bioeconomy, University of Life Science in Lublin, Lublin, Poland.,Faculty of Medicine, Centre for Innovative Research in Medical and Natural Sciences, University of Rzeszów, Rzeszów, Poland
| | - Radosław Szlązak
- Department of Metrology and Modelling of Agrophysical Processes, Bohdan Dobrzański Institute of Agrophysics of the Polish Academy of Sciences, Lublin, Poland
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The effect of manganese nanoparticles on performance, redox reactions and epigenetic changes in turkey tissues. Animal 2019; 13:1137-1144. [DOI: 10.1017/s1751731118002653] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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Curcumin restores hepatic epigenetic changes in propylthiouracil(PTU) Induced hypothyroid male rats: A study on DNMTs, MBDs, GADD45a, C/EBP-β and PCNA. Food Chem Toxicol 2019; 123:169-180. [DOI: 10.1016/j.fct.2018.10.050] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 10/10/2018] [Accepted: 10/22/2018] [Indexed: 02/06/2023]
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Cannavò SP, Tonacci A, Bertino L, Casciaro M, Borgia F, Gangemi S. The role of oxidative stress in the biology of melanoma: A systematic review. Pathol Res Pract 2019; 215:21-28. [DOI: 10.1016/j.prp.2018.11.020] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 11/22/2018] [Accepted: 11/23/2018] [Indexed: 12/11/2022]
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LncRNA GAS5 regulates redox balance and dysregulates the cell cycle and apoptosis in malignant melanoma cells. J Cancer Res Clin Oncol 2018; 145:637-652. [PMID: 30569211 PMCID: PMC6394673 DOI: 10.1007/s00432-018-2820-4] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 12/07/2018] [Indexed: 01/09/2023]
Abstract
PURPOSE Clinical outcomes for advanced malignant melanoma (MM) are often poor due to tumor invasiveness, metastasis, recurrence, and multidrug resistance. METHODS We investigated whether apoptosis, cell cycle regulation, oxidative status, and redox balance were altered by changes in the expression of the long noncoding RNA, growth arrest-specific transcript 5 (GAS5), in MM cells. RESULTS Analysis of clinical samples from MM patients showed that the rate of reduced GAS5 expression, relative to that in adjacent noncancerous tissues, was significantly lower for tumors from patients with advanced disease (76.6%, P < 0.001), as evidenced by larger tumor size, higher TNM stage, and higher incidences of ulceration and metastasis (P < 0.001 for all). Cell culture experiments showed that siRNA-mediated knockdown of GAS5 increased the viability of A375-GAS5si cells. Flow cytometry and western blotting showed that GAS5 knockdown increased MM cell proliferation by inducing G1/S cell cycle progression through increases in Cyclin D1, CDK4, and p27 expression (P < 0.05 for all) and by inhibiting apoptosis through an increase in Bcl-2 expression (P < 0.001). Knockdown of GAS5 also increased levels of superoxide anion (P < 0.01), NADP+(P < 0.001), and oxidized glutathiones (P < 0.01) through increases in NOX4 expression (P < 0.001), G6PD expression (P < 0.01), and NOX activity (P < 0.05), and RNA co-immunoprecipitation showed that GAS5 induced these changes through a physical interaction between GAS5 and the G6PD protein. CONCLUSIONS Our findings show GAS5 contributes to regulation of the apoptosis, cell cycle, homeostasis of reactive oxygen species, and redox balance in MM cells, and suggest that reduced GAS5 expression contributes to disease progression in MM patients.
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He J, Xu L, Yang L, Wang X. Epigallocatechin Gallate Is the Most Effective Catechin Against Antioxidant Stress via Hydrogen Peroxide and Radical Scavenging Activity. Med Sci Monit 2018; 24:8198-8206. [PMID: 30428482 PMCID: PMC6247744 DOI: 10.12659/msm.911175] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Background Hydrogen peroxide-induced neuronal oxidative stress is a serious threat to the nervous system. Catechins and related compounds are effective radical scavengers that protect against nerve cell damage. Material/Methods Here, we investigated the antioxidant property of various catechins in protecting against hydrogen peroxide, as well as their radical-scavenging activity. Result We found that catechins treatment effectively protected HT22 cells against H2O2-induced cell viability by decreasing and attenuating reactive oxidative species production in different proportions. In addition, all tested catechins performed radical scavenging activity, and partially removed the free radicals. Among all investigated catechins, epigallocatechin gallate was the most effective against ROS production and had the strongest radical-scavenging activity. These results suggest that beneficial effects were strongly related with structure of catechins, mainly because of the hydroxyl and galloyl groups. Conclusions In conclusion, epigallocatechin gallate is the most effective antioxidant polyphenol against hydrogen peroxide and radical-scavenging activity.
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Affiliation(s)
- Jinting He
- Department of Neurology, China-Japan Union Hospital, Jilin University, Changchun, Jilin, China (mainland)
| | - Lei Xu
- Department of Neurology, China-Japan Union Hospital, Jilin University, Changchun, Jilin, China (mainland)
| | - Le Yang
- People's Hospital of Jilin Province, Changchun, Jilin, China (mainland)
| | - Xiaofeng Wang
- Department of Stomatology, China-Japan Union Hospital, Jilin University, Changchun, Jilin, China (mainland)
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