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Badawy S, Liu Y, Guo M, Liu Z, Xie C, Marawan MA, Ares I, Lopez-Torres B, Martínez M, Maximiliano JE, Martínez-Larrañaga MR, Wang X, Anadón A, Martínez MA. Conjugated linoleic acid (CLA) as a functional food: Is it beneficial or not? Food Res Int 2023; 172:113158. [PMID: 37689911 DOI: 10.1016/j.foodres.2023.113158] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 06/15/2023] [Accepted: 06/16/2023] [Indexed: 09/11/2023]
Abstract
Conjugated linoleic acid (CLA) has attracted great attention in recent years as a popular class of functional food that is broadly used. It refers to a group of geometric and positional isomers of linoleic acid (LA) with a conjugated double bond. The main natural sources of CLA are dairy products, beef and lamb, whereas only trace amounts occur naturally in plant lipids. CLA has been shown to improve various health issues, having effects on obesity, inflammatory, anti-carcinogenicity, atherogenicity, immunomodulation, and osteosynthesis. Also, compared to studies on humans, many animal researches reveal more positive benefits on health. CLA represents a nutritional avenue to improve lifestyle diseases and metabolic syndrome. Most of these effects are attributed to the two major CLA isomers [conjugated linoleic acid cis-9,trans-11 isomer (c9,t11), and conjugated linoleic acid trans-10,cis-12 isomer (t10,c12)], and their mixture (CLA mix). In contrast, adverse effects of CLA have been also reported, such as glucose homeostasis, insulin resistance, hepatic steatosis and induction of colon carcinogenesis in humans, as well as milk fat inhibition in ruminants, lowering chicken productivity, influencing egg quality and altering growth performance in fish. This review article aims to discuss the health benefits of CLA as a nutraceutical supplement and highlight the possible mechanisms of action that may contribute to its outcome. It also outlines the feasible adverse effects of CLA besides summarizing the recent peer-reviewed publications on CLA to ensure its efficacy and safety for proper application in humans.
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Affiliation(s)
- Sara Badawy
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei 430070, China; Pathology Department of Animal Medicine, Faculty of Veterinary Medicine, Benha University, Egypt
| | - Yanan Liu
- MAO Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Mingyue Guo
- MAO Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Zhenli Liu
- MAO Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Changqing Xie
- MAO Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Marawan A Marawan
- The State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei 430070, China; Infectious Diseases, Animal Medicine Department, Faculty of Veterinary Medicine, Benha University, Egypt
| | - Irma Ares
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid (UCM), and Research Institute Hospital 12 de Octubre (i+12), 28040 Madrid, Spain
| | - Bernardo Lopez-Torres
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid (UCM), and Research Institute Hospital 12 de Octubre (i+12), 28040 Madrid, Spain
| | - Marta Martínez
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid (UCM), and Research Institute Hospital 12 de Octubre (i+12), 28040 Madrid, Spain
| | - Jorge-Enrique Maximiliano
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid (UCM), and Research Institute Hospital 12 de Octubre (i+12), 28040 Madrid, Spain
| | - María-Rosa Martínez-Larrañaga
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid (UCM), and Research Institute Hospital 12 de Octubre (i+12), 28040 Madrid, Spain
| | - Xu Wang
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei 430070, China; MAO Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
| | - Arturo Anadón
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid (UCM), and Research Institute Hospital 12 de Octubre (i+12), 28040 Madrid, Spain.
| | - María-Aránzazu Martínez
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid (UCM), and Research Institute Hospital 12 de Octubre (i+12), 28040 Madrid, Spain
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A deeply conserved protease, acylamino acid-releasing enzyme (AARE), acts in ageing in Physcomitrella and Arabidopsis. Commun Biol 2023; 6:61. [PMID: 36650210 PMCID: PMC9845386 DOI: 10.1038/s42003-023-04428-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 01/05/2023] [Indexed: 01/18/2023] Open
Abstract
Reactive oxygen species (ROS) are constant by-products of aerobic life. In excess, ROS lead to cytotoxic protein aggregates, which are a hallmark of ageing in animals and linked to age-related pathologies in humans. Acylamino acid-releasing enzymes (AARE) are bifunctional serine proteases, acting on oxidized proteins. AARE are found in all domains of life, albeit under different names, such as acylpeptide hydrolase (APEH/ACPH), acylaminoacyl peptidase (AAP), or oxidized protein hydrolase (OPH). In humans, AARE malfunction is associated with age-related pathologies, while their function in plants is less clear. Here, we provide a detailed analysis of AARE genes in the plant lineage and an in-depth analysis of AARE localization and function in the moss Physcomitrella and the angiosperm Arabidopsis. AARE loss-of-function mutants have not been described for any organism so far. We generated and analysed such mutants and describe a connection between AARE function, aggregation of oxidized proteins and plant ageing, including accelerated developmental progression and reduced life span. Our findings complement similar findings in animals and humans, and suggest a unified concept of ageing may exist in different life forms.
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Kiss-Szemán AJ, Takács L, Orgován Z, Stráner P, Jákli I, Schlosser G, Masiulis S, Harmat V, Menyhárd DK, Perczel A. A carbapenem antibiotic inhibiting a mammalian serine protease: structure of the acylaminoacyl peptidase-meropenem complex. Chem Sci 2022; 13:14264-14276. [PMID: 36545146 PMCID: PMC9749117 DOI: 10.1039/d2sc05520a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 11/06/2022] [Indexed: 11/10/2022] Open
Abstract
The structure of porcine AAP (pAAP) in a covalently bound complex with meropenem was determined by cryo-EM to 2.1 Å resolution, showing the mammalian serine-protease inhibited by a carbapenem antibiotic. AAP is a modulator of the ubiquitin-proteasome degradation system and the site of a drug-drug interaction between the widely used antipsychotic, valproate and carbapenems. The active form of pAAP - a toroidal tetramer - binds four meropenem molecules covalently linked to the catalytic Ser587 of the serine-protease triad, in an acyl-enzyme state. AAP is hindered from fully processing the antibiotic by the displacement and protonation of His707 of the catalytic triad. We show that AAP is made susceptible to the association by its unusually sheltered active pockets and flexible catalytic triads, while the carbapenems possess sufficiently small substituents on their β-lactam rings to fit into the shallow substrate-specificity pocket of the enzyme.
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Affiliation(s)
- Anna J. Kiss-Szemán
- Laboratory of Structural Chemistry and Biology, Institute of Chemistry, Eötvös Loránd UniversityPázmány Péter sétány 1/ABudapestHungary
| | - Luca Takács
- Laboratory of Structural Chemistry and Biology, Institute of Chemistry, Eötvös Loránd UniversityPázmány Péter sétány 1/ABudapestHungary
| | - Zoltán Orgován
- Medicinal Chemistry Research Group, Research Centre for Natural SciencesBudapestHungary
| | - Pál Stráner
- ELKH-ELTE Protein Modelling Research Group, Eötvös Loránd Research NetworkBudapestHungary+36-1-372-2500/1653+36-1-372-2500/6547
| | - Imre Jákli
- Laboratory of Structural Chemistry and Biology, Institute of Chemistry, Eötvös Loránd UniversityPázmány Péter sétány 1/ABudapestHungary,ELKH-ELTE Protein Modelling Research Group, Eötvös Loránd Research NetworkBudapestHungary+36-1-372-2500/1653+36-1-372-2500/6547
| | - Gitta Schlosser
- ELKH-ELTE Lendület Ion Mobility Mass Spectrometry Research Group, Institute of Chemistry, Eötvös Loránd UniversityBudapestHungary
| | - Simonas Masiulis
- Materials and Structural Analysis Division, Thermo Fisher ScientificEindhovenThe Netherlands
| | - Veronika Harmat
- Laboratory of Structural Chemistry and Biology, Institute of Chemistry, Eötvös Loránd UniversityPázmány Péter sétány 1/ABudapestHungary,ELKH-ELTE Protein Modelling Research Group, Eötvös Loránd Research NetworkBudapestHungary+36-1-372-2500/1653+36-1-372-2500/6547
| | - Dóra K. Menyhárd
- Laboratory of Structural Chemistry and Biology, Institute of Chemistry, Eötvös Loránd UniversityPázmány Péter sétány 1/ABudapestHungary,ELKH-ELTE Protein Modelling Research Group, Eötvös Loránd Research NetworkBudapestHungary+36-1-372-2500/1653+36-1-372-2500/6547
| | - András Perczel
- Laboratory of Structural Chemistry and Biology, Institute of Chemistry, Eötvös Loránd UniversityPázmány Péter sétány 1/ABudapestHungary,ELKH-ELTE Protein Modelling Research Group, Eötvös Loránd Research NetworkBudapestHungary+36-1-372-2500/1653+36-1-372-2500/6547
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Differential Distribution and Activity Profile of Acylpeptide Hydrolase in the Rat Seminiferous Epithelium. Biomedicines 2022; 10:biomedicines10071591. [PMID: 35884896 PMCID: PMC9312705 DOI: 10.3390/biomedicines10071591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 06/24/2022] [Accepted: 06/27/2022] [Indexed: 11/18/2022] Open
Abstract
Acylpeptide hydrolase (APEH) is a serine protease involved in amino acid recycling from acylated peptides (exopeptidase activity) and degradation of oxidized proteins (endoproteinase activity). This enzyme is inhibited by dichlorvos (DDVP), an organophosphate compound used as an insecticide. The role of APEH in spermatogenesis has not been established; therefore, the aim of this study was to characterize the distribution and activity profile of APEH during this process. For this purpose, cryosections of male reproductive tissues (testis and epididymis) and isolated cells (Sertoli cells, germ cells, and spermatozoa) were obtained from adult rats in order to analyze the intracellular localization of APEH by indirect immunofluorescence. In addition, the catalytic activity profiles of APEH in the different male reproductive tissues and isolated cells were quantified. Our results show that APEH is homogeneously distributed in Sertoli cells and early germ cells (spermatocytes and round spermatids), but this pattern changes during spermiogenesis. Specifically, in elongated spermatids and spermatozoa, APEH was localized in the acrosome and the principal piece. The exopeptidase activity was higher in the germ cell pool, compared to sperm and Sertoli cells, while the endoproteinase activity in epididymal homogenates was higher compared to testis homogenates at 24 h of incubation. In isolated cells, this activity was increased in Sertoli and germ cell pools, compared to spermatozoa. Taken together, these results indicate that APEH is differentially distributed in the testicular epithelium and undergoes re-localization during spermiogenesis. A possible role of APEH as a component of a protection system against oxidative stress and during sperm capacitation is discussed.
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Sandomenico A, Gogliettino M, Iaccarino E, Fusco C, Caporale A, Ruvo M, Palmieri G, Cocca E. Oxidized Substrates of APEH as a Tool to Study the Endoprotease Activity of the Enzyme. Int J Mol Sci 2021; 23:ijms23010443. [PMID: 35008880 PMCID: PMC8745263 DOI: 10.3390/ijms23010443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 12/24/2021] [Accepted: 12/28/2021] [Indexed: 11/30/2022] Open
Abstract
APEH is a ubiquitous and cytosolic serine protease belonging to the prolyl oligopeptidase (POP) family, playing a critical role in the processes of degradation of proteins through both exo- and endopeptidase events. Endopeptidase activity has been associated with protein oxidation; however, the actual mechanisms have yet to be elucidated. We show that a synthetic fragment of GDF11 spanning the region 48–64 acquires sensitivity to the endopeptidase activity of APEH only when the methionines are transformed into the corresponding sulphoxide derivatives. The data suggest that the presence of sulphoxide-modified methionines is an important prerequisite for the substrates to be processed by APEH and that the residue is crucial for switching the enzyme activity from exo- to endoprotease. The cleavage occurs on residues placed on the C-terminal side of Met(O), with an efficiency depending on the methionine adjacent residues, which thereby may play a crucial role in driving and modulating APEH endoprotease activity.
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Affiliation(s)
- Annamaria Sandomenico
- Institute of Biostructure and Bioimaging, National Research Council (CNR-IBB), 80134 Napoli, Italy; (A.S.); (E.I.); (A.C.)
| | - Marta Gogliettino
- Institute of Biosciences and BioResources, National Research Council (CNR-IBBR), 80131 Napoli, Italy; (M.G.); (C.F.); (E.C.)
| | - Emanuela Iaccarino
- Institute of Biostructure and Bioimaging, National Research Council (CNR-IBB), 80134 Napoli, Italy; (A.S.); (E.I.); (A.C.)
| | - Carmela Fusco
- Institute of Biosciences and BioResources, National Research Council (CNR-IBBR), 80131 Napoli, Italy; (M.G.); (C.F.); (E.C.)
- Department of Medicine and Health Sciences, University of Molise, 86100 Campobasso, Italy
| | - Andrea Caporale
- Institute of Biostructure and Bioimaging, National Research Council (CNR-IBB), 80134 Napoli, Italy; (A.S.); (E.I.); (A.C.)
| | - Menotti Ruvo
- Institute of Biostructure and Bioimaging, National Research Council (CNR-IBB), 80134 Napoli, Italy; (A.S.); (E.I.); (A.C.)
- Correspondence: (M.R.); (G.P.)
| | - Gianna Palmieri
- Institute of Biosciences and BioResources, National Research Council (CNR-IBBR), 80131 Napoli, Italy; (M.G.); (C.F.); (E.C.)
- Correspondence: (M.R.); (G.P.)
| | - Ennio Cocca
- Institute of Biosciences and BioResources, National Research Council (CNR-IBBR), 80131 Napoli, Italy; (M.G.); (C.F.); (E.C.)
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Gogliettino M, Cocca E, Sandomenico A, Gratino L, Iaccarino E, Calvanese L, Rossi M, Palmieri G. Selective inhibition of acylpeptide hydrolase in SAOS-2 osteosarcoma cells: is this enzyme a viable anticancer target? Mol Biol Rep 2021; 48:1505-1519. [PMID: 33471263 DOI: 10.1007/s11033-020-06129-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 12/24/2020] [Indexed: 12/28/2022]
Abstract
Serine hydrolases play crucial roles in many physiological and pathophysiological processes and a panel of these enzymes are targets of approved drugs. Despite this, most of the human serine hydrolases remain poorly characterized with respect to their biological functions and substrates and only a limited number of in vivo active inhibitors have been so far identified. Acylpeptide hydrolase (APEH) is a member of the prolyl-oligopeptidase class, with a unique substrate specificity, that has been suggested to have a potential oncogenic role. In this study, a set of peptides was rationally designed from the lead compound SsCEI 4 and in vitro screened for APEH inhibition. Out of these molecules, a dodecapeptide named Ala 3 showed the best inhibitory effects and it was chosen as a candidate for investigating the anti-cancer effects induced by inhibition of APEH in SAOS-2 cell lines. The results clearly demonstrated that Ala 3 markedly reduced cell viability via deregulation of the APEH-proteasome system. Furthermore, flow cytometric analysis revealed that Ala 3 anti-proliferative effects were closely related to the activation of a caspase-dependent apoptotic pathway. Our findings provide further evidence that APEH can play a crucial role in the pathogenesis of cancer, shedding new light on the great potential of this enzyme as an attractive target for the diagnosis and the quest for selective cancer therapies.
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Affiliation(s)
- Marta Gogliettino
- Institute of Biosciences and BioResources, National Research Council (CNR-IBBR), 80131, Napoli, Italy
| | - Ennio Cocca
- Institute of Biosciences and BioResources, National Research Council (CNR-IBBR), 80131, Napoli, Italy
| | - Annamaria Sandomenico
- Institute of Biostructure and Bioimaging, National Research Council (CNR-IBB), 80134, Napoli, Italy
| | - Lorena Gratino
- Institute of Biosciences and BioResources, National Research Council (CNR-IBBR), 80131, Napoli, Italy
| | - Emanuela Iaccarino
- Institute of Biostructure and Bioimaging, National Research Council (CNR-IBB), 80134, Napoli, Italy
| | - Luisa Calvanese
- Institute of Biostructure and Bioimaging, National Research Council (CNR-IBB), 80134, Napoli, Italy
| | - Mosè Rossi
- Institute of Biosciences and BioResources, National Research Council (CNR-IBBR), 80131, Napoli, Italy
| | - Gianna Palmieri
- Institute of Biosciences and BioResources, National Research Council (CNR-IBBR), 80131, Napoli, Italy.
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Walczak M, Chryplewicz A, Olewińska S, Psurski M, Winiarski Ł, Torzyk K, Oleksyszyn J, Sieńczyk M. Phosphonic Analogs of Alanine as Acylpeptide Hydrolase Inhibitors. Chem Biodivers 2021; 18:e2001004. [PMID: 33427376 DOI: 10.1002/cbdv.202001004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 01/08/2021] [Indexed: 11/12/2022]
Abstract
Acylpeptide hydrolase is a serine protease, which, together with prolyl oligopeptidase, dipeptidyl peptidase IV and oligopeptidase B, belongs to the prolyl oligopeptidase family. Its primary function is associated with the removal of N-acetylated amino acid residues from proteins and peptides. Although the N-acylation occurs in 50-90 % of eukaryotic proteins, the precise functions of this modification remains unclear. Recent findings have indicated that acylpeptide hydrolase participates in various events including oxidized proteins degradation, amyloid β-peptide cleavage, and response to DNA damage. Considering the protein degradation cycle cross-talk between acylpeptide hydrolase and proteasome, inhibition of the first enzyme resulted in down-regulation of the ubiquitin-proteasome system and induction of cancer cell apoptosis. Acylpeptide hydrolase has been proposed as an interesting target for the development of new potential anticancer agents. Here, we present the synthesis of simple derivatives of (1-aminoethyl)phosphonic acid diaryl esters, phosphonic analogs of alanine diversified at the N-terminus and ester rings, as inhibitors of acylpeptide hydrolase and discuss the ability of the title compounds to induce apoptosis of U937 and MV-4-11 tumor cell lines.
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Affiliation(s)
- Maciej Walczak
- Wroclaw University of Science and Technology, Department of Organic and Medicinal Chemistry, Faculty of Chemistry, Wybrzeze Wyspianskiego 27, 50-370, Wroclaw, Poland
| | - Agnieszka Chryplewicz
- Wroclaw University of Science and Technology, Department of Organic and Medicinal Chemistry, Faculty of Chemistry, Wybrzeze Wyspianskiego 27, 50-370, Wroclaw, Poland
| | - Sandra Olewińska
- Wroclaw University of Science and Technology, Department of Organic and Medicinal Chemistry, Faculty of Chemistry, Wybrzeze Wyspianskiego 27, 50-370, Wroclaw, Poland
| | - Mateusz Psurski
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114, Wroclaw, Poland
| | - Łukasz Winiarski
- Wroclaw University of Science and Technology, Department of Organic and Medicinal Chemistry, Faculty of Chemistry, Wybrzeze Wyspianskiego 27, 50-370, Wroclaw, Poland
| | - Karolina Torzyk
- Wroclaw University of Science and Technology, Department of Organic and Medicinal Chemistry, Faculty of Chemistry, Wybrzeze Wyspianskiego 27, 50-370, Wroclaw, Poland
| | - Józef Oleksyszyn
- Wroclaw University of Science and Technology, Department of Organic and Medicinal Chemistry, Faculty of Chemistry, Wybrzeze Wyspianskiego 27, 50-370, Wroclaw, Poland
| | - Marcin Sieńczyk
- Wroclaw University of Science and Technology, Department of Organic and Medicinal Chemistry, Faculty of Chemistry, Wybrzeze Wyspianskiego 27, 50-370, Wroclaw, Poland
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Shi HB, Tai DM, Wang C, Liu JX, Loor JJ, Liu HY. Short communication: The antilipogenic effect of trans-10,cis-12 conjugated linoleic acid in bovine mammary epithelial cells is associated with proteasome activity and ATP production. J Dairy Sci 2020; 103:9096-9101. [PMID: 32828501 DOI: 10.3168/jds.2019-17872] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 06/01/2020] [Indexed: 01/24/2023]
Abstract
Proteasomes play a widespread role in the control of protein abundance via degrading ubiquitinated proteins. Activity of proteasomes is regulated by constitutive ATPases that respond to intracellular concentrations of ATP. Although recent data suggest a role of proteasomes in fatty acid metabolism, whether lipogenic activity in mammary cells is responsive to ATP concentrations and proteasome activity is unknown. To investigate whether proteasomes play a role in milk fat depression induced by trans-10,cis-12 conjugated linoleic acid (t10,c12 CLA), a bovine mammary epithelial cell line was treated with t10,c12 CLA for 24 h before analysis of lipogenic protein abundance. Western blot analysis of inactive sterol response element-binding protein-1 (pSREBP1) and active (nSREBP1) fragments indicated a decrease in abundance induced by exogenous t10,c12 CLA. At 150 nM t10,c12 CLA, abundance of both pSREBP1 and nSREBP1 was lowest, and decreased from basal levels by 16 and 64%, respectively. Exogenous t10,c12 CLA had no effect on abundance of peroxisome proliferator-activated receptor-gamma (PPARγ), but at 150 and 300 nM it decreased abundance of SREBF chaperone (SCAP). Inhibition of proteasome activity via incubation with MG-132 (a proteasome inhibitor) alone had no effect on pSREBP1, nSREBP1, PPARγ, or SCAP abundance. However, when cells were pre-incubated with MG-132, treatment with t10,c12 CLA reduced pSREBP1 (∼27%) and nSREBP1 (∼41%) abundance without affecting PPARγ or SCAP. Compared with the control, exogenous t10,c12 CLA increased ATP concentrations, and MG-132 alone had no effect. However, ATP concentration decreased markedly in cells incubated with both MG-132 and t10,c12 CLA. Combined with the alteration of SCAP and nSREBP1, the increase of ATP concentrations with t10,c12 CLA suggested that this fatty acid influenced the function of the SREBP1-SCAP complex through altering proteasome activity. Collectively, the current data highlight a role of proteasomes and intracellular ATP concentrations in the antilipogenic effect induced by t10,c12 CLA that leads to milk fat depression.
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Affiliation(s)
- H B Shi
- Institute of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - D M Tai
- Institute of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - C Wang
- College of Animal Sciences and Technology, Zhejiang A and F University, Lin'an 311300, China
| | - J X Liu
- Institute of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - J J Loor
- Mammalian NutriPhysioGenomics, Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana 61801
| | - H Y Liu
- Institute of Dairy Science, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China.
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9
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Qi XL, Wang J, Yue HY, Wu SG, Zhang YN, Ni HM, Guo Y, Zhang HJ, Qi GH. Trans10, cis12-conjugated linoleic acid exhibits a stronger antioxidant capacity than cis9, trans11-conjugated linoleic acid in primary cultures of laying hen hepatocytes. Poult Sci 2018; 97:4415-4424. [DOI: 10.3382/ps/pey297] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 06/20/2018] [Indexed: 12/23/2022] Open
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10
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Palmieri G, Cocca E, Gogliettino M, Valentino R, Ruvo M, Cristofano G, Angiolillo A, Balestrieri M, Rossi M, Di Costanzo A. Low Erythrocyte Levels of Proteasome and Acyl-Peptide Hydrolase (APEH) Activities in Alzheimer’s Disease: A Sign of Defective Proteostasis? J Alzheimers Dis 2017; 60:1097-1106. [DOI: 10.3233/jad-170389] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Gianna Palmieri
- Institute of Biosciences and BioResources, National Research Council (CNR-IBBR), Napoli, Italy
| | - Ennio Cocca
- Institute of Biosciences and BioResources, National Research Council (CNR-IBBR), Napoli, Italy
| | - Marta Gogliettino
- Institute of Biosciences and BioResources, National Research Council (CNR-IBBR), Napoli, Italy
| | - Roberta Valentino
- Institute of Biosciences and BioResources, National Research Council (CNR-IBBR), Napoli, Italy
| | - Menotti Ruvo
- Institute of Biostructure and Bioimaging, National Research Council (CNR-IBB), Napoli, Italy
| | - Gloria Cristofano
- Department of Medicine and Health Sciences, University of Molise, Campobasso, Italy
| | - Antonella Angiolillo
- Department of Medicine and Health Sciences, University of Molise, Campobasso, Italy
| | - Marco Balestrieri
- Institute of Biosciences and BioResources, National Research Council (CNR-IBBR), Napoli, Italy
| | - Mosè Rossi
- Institute of Biosciences and BioResources, National Research Council (CNR-IBBR), Napoli, Italy
| | - Alfonso Di Costanzo
- Department of Medicine and Health Sciences, University of Molise, Campobasso, Italy
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11
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Brocca S, Ferrari C, Barbiroli A, Pesce A, Lotti M, Nardini M. A bacterial acyl aminoacyl peptidase couples flexibility and stability as a result of cold adaptation. FEBS J 2016; 283:4310-4324. [DOI: 10.1111/febs.13925] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 09/29/2016] [Accepted: 10/11/2016] [Indexed: 11/28/2022]
Affiliation(s)
- Stefania Brocca
- Department of Biotechnology and Biosciences; University of Milano-Bicocca; Italy
| | - Cristian Ferrari
- Department of Biotechnology and Biosciences; University of Milano-Bicocca; Italy
| | - Alberto Barbiroli
- Department of Food, Environmental and Nutritional Sciences; University of Milano; Italy
| | | | - Marina Lotti
- Department of Biotechnology and Biosciences; University of Milano-Bicocca; Italy
| | - Marco Nardini
- Department of Biosciences; University of Milano; Italy
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Palumbo R, Gogliettino M, Cocca E, Iannitti R, Sandomenico A, Ruvo M, Balestrieri M, Rossi M, Palmieri G. APEH Inhibition Affects Osteosarcoma Cell Viability via Downregulation of the Proteasome. Int J Mol Sci 2016; 17:ijms17101614. [PMID: 27669226 PMCID: PMC5085647 DOI: 10.3390/ijms17101614] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Revised: 09/08/2016] [Accepted: 09/19/2016] [Indexed: 01/13/2023] Open
Abstract
The proteasome is a multienzymatic complex that controls the half-life of the majority of intracellular proteins, including those involved in apoptosis and cell-cycle progression. Recently, proteasome inhibition has been shown to be an effective anticancer strategy, although its downregulation is often accompanied by severe undesired side effects. We previously reported that the inhibition of acylpeptide hydrolase (APEH) by the peptide SsCEI 4 can significantly affect the proteasome activity in A375 melanoma or Caco-2 adenocarcinoma cell lines, thus shedding new light on therapeutic strategies based on downstream regulation of proteasome functions. In this work, we investigated the functional correlation between APEH and proteasome in a panel of cancer cell lines, and evaluated the cell proliferation upon SsCEI 4-treatments. Results revealed that SsCEI 4 triggered a proliferative arrest specifically in osteosarcoma U2OS cells via downregulation of the APEH–proteasome system, with the accumulation of the typical hallmarks of proteasome: NF-κB, p21Waf1, and polyubiquitinylated proteins. We found that the SsCEI 4 anti-proliferative effect involved a senescence-like growth arrest without noticeable cytotoxicity. These findings represent an important step toward understanding the mechanism(s) underlying the APEH-mediated downregulation of proteasome in order to design new molecules able to efficiently regulate the proteasome system for alternative therapeutic strategies.
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Affiliation(s)
- Rosanna Palumbo
- Institute of Biostructure and Bioimaging, National Research Council (CNR-IBB), Napoli 80134, Italy.
| | - Marta Gogliettino
- Institute of Biosciences and BioResources, National Research Council (CNR-IBBR), Napoli 80131, Italy.
| | - Ennio Cocca
- Institute of Biosciences and BioResources, National Research Council (CNR-IBBR), Napoli 80131, Italy.
| | - Roberta Iannitti
- Institute of Biostructure and Bioimaging, National Research Council (CNR-IBB), Napoli 80134, Italy.
| | - Annamaria Sandomenico
- Institute of Biostructure and Bioimaging, National Research Council (CNR-IBB), Napoli 80134, Italy.
| | - Menotti Ruvo
- Institute of Biostructure and Bioimaging, National Research Council (CNR-IBB), Napoli 80134, Italy.
| | - Marco Balestrieri
- Institute of Biosciences and BioResources, National Research Council (CNR-IBBR), Napoli 80131, Italy.
| | - Mosè Rossi
- Institute of Biosciences and BioResources, National Research Council (CNR-IBBR), Napoli 80131, Italy.
| | - Gianna Palmieri
- Institute of Biosciences and BioResources, National Research Council (CNR-IBBR), Napoli 80131, Italy.
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A kinetic study of the thermally induced isomerization reactions of 9 c ,12 c linoleic acid triacylglycerol using gas chromatography. Food Control 2016. [DOI: 10.1016/j.foodcont.2016.02.046] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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14
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Guo Q, Ha Y, Li Q, Jin J, Deng Z, Li Y, Zhang S. Impact of additives on thermally-induced trans isomers in 9c,12c linoleic acid triacylglycerol. Food Chem 2015; 174:299-305. [DOI: 10.1016/j.foodchem.2014.11.063] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Revised: 10/17/2014] [Accepted: 11/10/2014] [Indexed: 01/22/2023]
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15
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Sandomenico A, Celentano V, D'Andrea LD, Palmieri G, Ruvo M. Screening of β-hairpin peptide-engrafted 1,2,3-triazoles to identify APEH enzyme inhibitors. RSC Adv 2015. [DOI: 10.1039/c4ra13505a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Peptide-engrafted triazoles, obtained via click chemistry, drive the inhibition activity toward Acyl Peptide Hydrolase (APEH), a modulator of the proteasome activity.
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Affiliation(s)
- A. Sandomenico
- Institute of Biostructure and Bioimaging
- National Research Council (CNR-IBB)
- 80134 Naples
- Italy
- CIRPEB-University of Naples Federico II
| | - V. Celentano
- Institute of Biostructure and Bioimaging
- National Research Council (CNR-IBB)
- 80134 Naples
- Italy
| | - L. D. D'Andrea
- Institute of Biostructure and Bioimaging
- National Research Council (CNR-IBB)
- 80134 Naples
- Italy
- CIRPEB-University of Naples Federico II
| | - G. Palmieri
- Institute of Biosciensces and BioResources
- National Research Council (CNR-IBBR)
- Naples
- Italy
| | - M. Ruvo
- Institute of Biostructure and Bioimaging
- National Research Council (CNR-IBB)
- 80134 Naples
- Italy
- CIRPEB-University of Naples Federico II
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16
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Zhou L, Lu Y, Yang G, Wu J. Research on tumorigenicity of cinnamaldehyde in melanoma cell lines and its mechanism. Tumour Biol 2014; 35:5717-22. [PMID: 24643680 DOI: 10.1007/s13277-014-1757-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Accepted: 02/13/2014] [Indexed: 10/25/2022] Open
Abstract
Melanoma is a highly malignant tumor originating from melanocytes. This disease is characterized by inconspicuous onset, high malignancy, and poor prognosis. The aim of this study is to explore the effect of cinnamaldehyde on melanoma tumorigenicity and its mechanism. Melanoma cells were subcutaneously injected into a nude mouse to establish the tumour model. A comparison was made for the difference in formation and growth of melanoma cell tumor between normal saline and cinnamaldehyde. A comparison was also made for the number of new vessels between the normal saline group (the control group) and the cinnamaldehyde group (the experimental group) through immumohistochemical staining. The western blot was used to detect the difference in expression levels of vascularization related proteins. The results indicated that the volume of tumors formed and the number of new vessels in melanoma cells of the cinnamaldehyde group decreased significantly compared with those in the cells of the normal saline group. A further study indicated that the expression of hypoxia-inducible factor-a (HIF-α) and vascular endothelial growth factor (VEGF) in the melanoma of the cinnamaldehyde group decreased significantly. In conclusion, cinnamaldehyde plays a certain role in inhibiting the occurrence and progression of melanoma and its action mechanism may be manifested by inhibiting expression of VEGF and HIF-α, thus blood vessel simulation and formation of new blood vessels of melanoma cells, and growth of tumors accordingly.
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Affiliation(s)
- Ling Zhou
- Department of Dermatology, Daping Hospital, Third Military Medical University, 10 Changjiang Branch Road, Daping, Chongqing, 400042, People's Republic of China
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