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Kim JY, Kwon YG, Kim YM. The stress-responsive protein REDD1 and its pathophysiological functions. Exp Mol Med 2023; 55:1933-1944. [PMID: 37653030 PMCID: PMC10545776 DOI: 10.1038/s12276-023-01056-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 05/13/2023] [Accepted: 05/17/2023] [Indexed: 09/02/2023] Open
Abstract
Regulated in development and DNA damage-response 1 (REDD1) is a stress-induced protein that controls various cellular functions, including metabolism, oxidative stress, autophagy, and cell fate, and contributes to the pathogenesis of metabolic and inflammatory disorders, neurodegeneration, and cancer. REDD1 usually exerts deleterious effects, including tumorigenesis, metabolic inflammation, neurodegeneration, and muscle dystrophy; however, it also exhibits protective functions by regulating multiple intrinsic cell activities through either an mTORC1-dependent or -independent mechanism. REDD1 typically regulates mTORC1 signaling, NF-κB activation, and cellular pro-oxidant or antioxidant activity by interacting with 14-3-3 proteins, IκBα, and thioredoxin-interacting protein or 75 kDa glucose-regulated protein, respectively. The diverse functions of REDD1 depend on cell type, cellular context, interaction partners, and cellular localization (e.g., mitochondria, endomembrane, or cytosol). Therefore, comprehensively understanding the molecular mechanisms and biological roles of REDD1 under pathophysiological conditions is of utmost importance. In this review, based on the published literature, we highlight and discuss the molecular mechanisms underlying the REDD1 expression and its actions, biological functions, and pathophysiological roles.
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Affiliation(s)
- Ji-Yoon Kim
- Department of Anesthesiology and Pain Medicine, Hanyang University Hospital, Seoul, 04763, Republic of Korea
| | - Young-Guen Kwon
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Young-Myeong Kim
- Department of Molecular and Cellular Biochemistry, School of Medicine, Kangwon National University, Chuncheon, 24341, Republic of Korea.
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Nutritional Sensor REDD1 in Cancer and Inflammation: Friend or Foe? Int J Mol Sci 2022; 23:ijms23179686. [PMID: 36077083 PMCID: PMC9456073 DOI: 10.3390/ijms23179686] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/16/2022] [Accepted: 08/23/2022] [Indexed: 12/02/2022] Open
Abstract
Regulated in Development and DNA Damage Response 1 (REDD1)/DNA Damage-Induced Transcript 4 (DDIT4) is an immediate early response gene activated by different stress conditions, including growth factor depletion, hypoxia, DNA damage, and stress hormones, i.e., glucocorticoids. The most known functions of REDD1 are the inhibition of proliferative signaling and the regulation of metabolism via the repression of the central regulator of these processes, the mammalian target of rapamycin (mTOR). The involvement of REDD1 in cell growth, apoptosis, metabolism, and oxidative stress implies its role in various pathological conditions, including cancer and inflammatory diseases. Recently, REDD1 was identified as one of the central genes mechanistically involved in undesirable atrophic effects induced by chronic topical and systemic glucocorticoids widely used for the treatment of blood cancer and inflammatory diseases. In this review, we discuss the role of REDD1 in the regulation of cell signaling and processes in normal and cancer cells, its involvement in the pathogenesis of different diseases, and the approach to safer glucocorticoid receptor (GR)-targeted therapies via a combination of glucocorticoids and REDD1 inhibitors to decrease the adverse atrophogenic effects of these steroids.
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Salamone IM, Quattrocelli M, Barefield DY, Page PG, Tahtah I, Hadhazy M, Tomar G, McNally EM. Intermittent glucocorticoid treatment enhances skeletal muscle performance through sexually dimorphic mechanisms. J Clin Invest 2022; 132:149828. [PMID: 35143417 PMCID: PMC8920338 DOI: 10.1172/jci149828] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 02/02/2022] [Indexed: 11/17/2022] Open
Abstract
Glucocorticoid steroids are commonly prescribed for many inflammatory conditions, but chronic daily use produces adverse effects, including muscle wasting and weakness. In contrast, shorter glucocorticoid pulses may improve athletic performance, although the mechanisms remain unclear. Muscle is sexually dimorphic and comparatively little is known about how male and female muscles respond to glucocorticoids. We investigated the impact of once-weekly glucocorticoid exposure on skeletal muscle performance comparing male and female mice. One month of once-weekly glucocorticoid dosing improved muscle specific force in both males and females. Transcriptomic profiling of isolated myofibers identified a striking sexually dimorphic response to weekly glucocorticoids. Male myofibers had increased expression of genes in the IGF1/PI3K pathway and calcium handling, while female myofibers had profound upregulation of lipid metabolism genes. Muscles from weekly prednisone–treated males had improved calcium handling, while comparably treated female muscles had reduced intramuscular triglycerides. Consistent with altered lipid metabolism, weekly prednisone–treated female mice had greater endurance relative to controls. Using chromatin immunoprecipitation, we defined a sexually dimorphic chromatin landscape after weekly prednisone. These results demonstrate that weekly glucocorticoid exposure elicits distinct pathways in males versus females, resulting in enhanced performance.
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Affiliation(s)
- Isabella M Salamone
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, United States of America
| | - Mattia Quattrocelli
- Department of Pediatrics, Cinicinnati Children's Hospital, Cincinnati, United States of America
| | - David Y Barefield
- Cell and Molecular Physiology, Loyola University Stritch School of Medicine, Maywood, United States of America
| | - Patrick G Page
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, United States of America
| | - Ibrahim Tahtah
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, United States of America
| | - Michele Hadhazy
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, United States of America
| | - Garima Tomar
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, United States of America
| | - Elizabeth M McNally
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, United States of America
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Pérez P. The mineralocorticoid receptor in skin disease. Br J Pharmacol 2021; 179:3178-3189. [PMID: 34788475 DOI: 10.1111/bph.15736] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 09/23/2021] [Accepted: 10/19/2021] [Indexed: 11/26/2022] Open
Abstract
The Mineralocorticoid Receptor (MR or NR3C2) is expressed in all cell types of the different skin compartments and can be bound and activated by glucocorticoids (GCs) with higher affinity than its closely related glucocorticoid (GC) receptor (GR or NR3C1). As both corticosteroid receptors co-express in skin, and considering the therapeutic relevance of GCs to combat skin inflammatory diseases, it was proposed that several of the major side-effects of topical GCs such as skin atrophy and delayed wound healing were due to unintended activation of the MR. Indeed, cutaneous MR blockade using genetic and pharmacological approaches in mice and human reduced the GC-associated skin atrophy in conditions of endogenous and pharmacological GC excess. While data support the safety of topical MR antagonists combined with GCs, it is crucial to address the efficacy of treatment in skin inflammatory conditions and its impact on the overall metabolism.
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Affiliation(s)
- Paloma Pérez
- Instituto de Biomedicina de Valencia (IBV)-CSIC, Valencia, Spain
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5
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Niculet E, Bobeica C, Tatu AL. Glucocorticoid-Induced Skin Atrophy: The Old and the New. Clin Cosmet Investig Dermatol 2020; 13:1041-1050. [PMID: 33408495 PMCID: PMC7779293 DOI: 10.2147/ccid.s224211] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 12/22/2020] [Indexed: 12/13/2022]
Abstract
Glucocorticoids are major therapeutic agents highly used in the medical field. Topical glucocorticoids have biologic activities which make them useful in dermatology – anti-inflammatory, vasoconstrictive, immune suppressive and antiproliferative, in treating inflammatory skin disorders (allergic contact eczema, atopic hand eczema, nummular eczema, psoriasis vulgaris or toxic-irritative eczema). Unfortunately, the beneficial effects of topical glucocorticoids are shadowed by their potential for adverse effects – muscle or skin atrophy, striae distensae, rubeosis or acne. Skin atrophy is one of the most prevalent side-effects, with changes found in all skin compartments – marked hypoplasia, elasticity loss with tearing, increased fragility, telangiectasia, bruising, cutaneous transparency, or a dysfunctional skin barrier. The structure and function of the epidermis is altered even in the short-term topical glucocorticoid treatment; it affects stratum corneum components, subsequently affecting skin barrier integrity. The dermis is altered by directly inhibiting fibroblast proliferation, reducing mast cell numbers, and loss of support; there is depletion of mucopolysaccharides, elastin fibers, matrix metalloproteases and inhibition of collagen synthesis. Atrophogenic changes can be found also in hair follicles, sebaceous glands or dermal adipose tissue. Attention should be paid to topical glucocorticoid treatment prescription, to the beneficial/adverse effects ratio of the chosen agent, and studies should be oriented on the development of newer, innovative targeted (gene or receptor) therapies.
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Affiliation(s)
- Elena Niculet
- Department of Morphological and Functional Sciences, Faculty of Medicine and Pharmacy, "Dunarea de Jos" University, Galati, Romania
| | - Carmen Bobeica
- Department of Dermato-Venereology, Doctoral School, University of Medicine and Pharmacy "Gr. T. Popa", Iași, Romania
| | - Alin L Tatu
- Clinical Department, Faculty of Medicine and Pharmacy, "Dunarea de Jos" University, Galati, Romania.,Research Center in the Field of Medical and Pharmaceutical Sciences, ReFORM-UDJ, Galati, Romania.,Dermatology Department, "Sf. Cuvioasa Parascheva" Clinical Hospital of Infectious Diseases, Galati, Romania
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Anagawa-Nakamura A, Ryoke K, Yasui Y, Shoda T, Sugai S. Effects of Delgocitinib Ointment 0.5% on the Normal Mouse Skin and Epidermal Tight Junction Proteins in Comparison With Topical Corticosteroids. Toxicol Pathol 2020; 48:1008-1016. [PMID: 33334258 DOI: 10.1177/0192623320970896] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Delgocitinib ointment 0.5% is the world's first topical Janus kinase inhibitor product and was approved for treatment of atopic dermatitis (AD) in Japan. Although topical corticosteroids (TCSs) have been the mainstay of pharmacotherapy in AD over the past decades, long-term use of TCSs causes skin atrophy and alteration of the epidermal tight junction (TJ) leading to epidermal barrier dysfunction. In this study, delgocitinib ointment 0.5% or representative TCSs of different potencies were applied dermally once daily to the ear pinna of normal ICR mice for 14 days, and ear pinna thickness, histopathology, and immunohistochemistry for epidermal TJ proteins claudin-1 and -4 were evaluated. All the TCSs caused decreases in ear pinna thickness with epidermal thinning, sebaceous gland atrophy, and atrophy/decreased number of the subcutaneous adipocytes and decreased immunohistochemical staining intensity for epidermal claudins. In contrast, delgocitinib ointment 0.5% did not cause any of those changes. In conclusion, once daily topical delgocitinib ointment 0.5% for 14 days did not cause skin atrophy or decreased immunohistochemical staining of epidermal claudins, which are common safety concerns associated with TCSs. These characteristics suggest that delgocitinib ointment 0.5% has an improved safety profile over currently available TCS therapies particular for the long-term AD treatment.
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Affiliation(s)
- Akiko Anagawa-Nakamura
- Tobacco Inc, Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Kanagawa, Japan
| | - Katsunori Ryoke
- Tobacco Inc, Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Kanagawa, Japan
| | - Yuzo Yasui
- Tobacco Inc, Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Kanagawa, Japan
| | - Toshiyuki Shoda
- Tobacco Inc, Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Kanagawa, Japan
| | - Shoichiro Sugai
- Tobacco Inc, Toxicology Research Laboratories, Central Pharmaceutical Research Institute, Kanagawa, Japan
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Britto FA, Dumas K, Giorgetti-Peraldi S, Ollendorff V, Favier FB. Is REDD1 a metabolic double agent? Lessons from physiology and pathology. Am J Physiol Cell Physiol 2020; 319:C807-C824. [PMID: 32877205 DOI: 10.1152/ajpcell.00340.2020] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The Akt/mechanistic target of rapamycin (mTOR) signaling pathway governs macromolecule synthesis, cell growth, and metabolism in response to nutrients and growth factors. Regulated in development and DNA damage response (REDD)1 is a conserved and ubiquitous protein, which is transiently induced in response to multiple stimuli. Acting like an endogenous inhibitor of the Akt/mTOR signaling pathway, REDD1 protein has been shown to regulate cell growth, mitochondrial function, oxidative stress, and apoptosis. Recent studies also indicate that timely REDD1 expression limits Akt/mTOR-dependent synthesis processes to spare energy during metabolic stresses, avoiding energy collapse and detrimental consequences. In contrast to this beneficial role for metabolic adaptation, REDD1 chronic expression appears involved in the pathogenesis of several diseases. Indeed, REDD1 expression is found as an early biomarker in many pathologies including inflammatory diseases, cancer, neurodegenerative disorders, depression, diabetes, and obesity. Moreover, prolonged REDD1 expression is associated with cell apoptosis, excessive reactive oxygen species (ROS) production, and inflammation activation leading to tissue damage. In this review, we decipher several mechanisms that make REDD1 a likely metabolic double agent depending on its duration of expression in different physiological and pathological contexts. We also discuss the role played by REDD1 in the cross talk between the Akt/mTOR signaling pathway and the energetic metabolism.
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Affiliation(s)
| | - Karine Dumas
- Université Cote d'Azur, INSERM, UMR1065, C3M, Nice, France
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