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Nsairat H, Jaber AM, Faddah H, Ahmad S. Oleuropein impact on colorectal cancer. Future Sci OA 2024; 10:FSO. [PMID: 38817366 PMCID: PMC11137855 DOI: 10.2144/fsoa-2023-0131] [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: 07/14/2023] [Accepted: 09/20/2023] [Indexed: 06/01/2024] Open
Abstract
Colorectal cancer (CRC) is considered the third most common cancer in the world. In Mediterranean region, olives and olive oil play a substantial role in diet and medical traditional behaviors. They totally believe that high consumption of olive products can treat a wide range of diseases and decrease risk of illness. Oleuropein is the main active antioxidant molecule found in pre-mature olive fruit and leaves. Recently, it has been demonstrated that oleuropein is used in cancer therapy as an anti-proliferative and apoptotic agent for some cancer cells. In this review, we would like to explore the conclusive effects of oleuropein on CRC with respect to in vitro and in vivo studies.
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Affiliation(s)
- Hamdi Nsairat
- Pharmacological & Diagnostic Research Center, Faculty of Pharmacy, Al-Ahliyya Amman University, Amman, 19328, Jordan
| | - Areej M Jaber
- Pharmacological & Diagnostic Research Center, Faculty of Pharmacy, Al-Ahliyya Amman University, Amman, 19328, Jordan
| | - Haya Faddah
- Pharmacological & Diagnostic Research Center, Faculty of Pharmacy, Al-Ahliyya Amman University, Amman, 19328, Jordan
| | - Somaya Ahmad
- Pharmacological & Diagnostic Research Center, Faculty of Pharmacy, Al-Ahliyya Amman University, Amman, 19328, Jordan
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2
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Sharma P, Tandel N, Kumar R, Negi S, Sharma P, Devi S, Saxena K, Chaudhary NR, Saini S, Kumar R, Chandel BS, Sijwali PS, Tyagi RK. Oleuropein activates autophagy to circumvent anti-plasmodial defense. iScience 2024; 27:109463. [PMID: 38562521 PMCID: PMC10982566 DOI: 10.1016/j.isci.2024.109463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 02/27/2024] [Accepted: 03/07/2024] [Indexed: 04/04/2024] Open
Abstract
Antimalarial drug resistance and unavailability of effective vaccine warrant for newer drugs and drug targets. Hence, anti-inflammatory activity of phyto-compound (oleuropein; OLP) was determined in antigen (LPS)-stimulated human THP-1 macrophages (macrophage model of inflammation; MMI). Reduction in the inflammation was controlled by the PI3K-Akt1 signaling to establish the "immune-homeostasis." Also, OLP treatment influenced the cell death/autophagy axis leading to the modulated inflammation for extended cell survival. The findings with MII prompted us to detect the antimalarial activity of OLP in the wild type (3D7), D10-expressing GFP-Atg18 parasite, and chloroquine-resistant (Dd2) parasite. OLP did not show the parasite inhibition in the routine in vitro culture of P. falciparum whereas OLP increased the antimalarial activity of artesunate. The molecular docking of autophagy-related proteins, investigations with MMI, and parasite inhibition assays indicated that the host activated the autophagy to survive OLP pressure. The challenge model of P. berghei infection showed to induce autophagy for circumventing anti-plasmodial defenses.
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Affiliation(s)
- Praveen Sharma
- Division of Cell Biology and Immunology, Biomedical Parasitology and Translational-immunology Lab, CSIR-Institute of Microbial Technology (IMTECH), Sec-39A, Chandigarh 160036, India
| | - Nikunj Tandel
- Institute of Science, Nirma University, SG highway, Ahmedabad 382481, India
| | - Rajinder Kumar
- Division of Cell Biology and Immunology, Biomedical Parasitology and Translational-immunology Lab, CSIR-Institute of Microbial Technology (IMTECH), Sec-39A, Chandigarh 160036, India
| | - Sushmita Negi
- Division of Cell Biology and Immunology, Biomedical Parasitology and Translational-immunology Lab, CSIR-Institute of Microbial Technology (IMTECH), Sec-39A, Chandigarh 160036, India
- Academy of Scientific and Innovation Research (AcSIR), Ghaziabad 201002, India
| | - Prakriti Sharma
- Division of Cell Biology and Immunology, Biomedical Parasitology and Translational-immunology Lab, CSIR-Institute of Microbial Technology (IMTECH), Sec-39A, Chandigarh 160036, India
| | - Sonia Devi
- Division of Cell Biology and Immunology, Biomedical Parasitology and Translational-immunology Lab, CSIR-Institute of Microbial Technology (IMTECH), Sec-39A, Chandigarh 160036, India
- Academy of Scientific and Innovation Research (AcSIR), Ghaziabad 201002, India
| | - Kanika Saxena
- Academy of Scientific and Innovation Research (AcSIR), Ghaziabad 201002, India
- CSIR-Centre for Cellular & Molecular Biology, Hyderabad, Telangana, India
| | - Neil Roy Chaudhary
- Division of Cell Biology and Immunology, Biomedical Parasitology and Translational-immunology Lab, CSIR-Institute of Microbial Technology (IMTECH), Sec-39A, Chandigarh 160036, India
| | - Sheetal Saini
- Division of Cell Biology and Immunology, Biomedical Parasitology and Translational-immunology Lab, CSIR-Institute of Microbial Technology (IMTECH), Sec-39A, Chandigarh 160036, India
| | - Reetesh Kumar
- Faculty of Agricultural Sciences, Institute of Applied Sciences & Humanities, GLA University, Mathura 281406, India
| | - Bharat Singh Chandel
- Department of Animal Biotechnology, College of Veterinary Science and AH, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar, Gujarat 385 506, India
| | - Puran S. Sijwali
- Academy of Scientific and Innovation Research (AcSIR), Ghaziabad 201002, India
- CSIR-Centre for Cellular & Molecular Biology, Hyderabad, Telangana, India
| | - Rajeev K. Tyagi
- Division of Cell Biology and Immunology, Biomedical Parasitology and Translational-immunology Lab, CSIR-Institute of Microbial Technology (IMTECH), Sec-39A, Chandigarh 160036, India
- Academy of Scientific and Innovation Research (AcSIR), Ghaziabad 201002, India
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Polacchini G, Venerando A, Colitti M. Antioxidant and anti-ageing effects of oleuropein aglycone in canine skeletal muscle cells. Tissue Cell 2024; 88:102369. [PMID: 38555794 DOI: 10.1016/j.tice.2024.102369] [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: 01/22/2024] [Revised: 03/26/2024] [Accepted: 03/27/2024] [Indexed: 04/02/2024]
Abstract
Reactive oxygen species (ROS) are normally produced in skeletal muscle. However, an imbalance in their regulatory systems can lead to their accumulation and ultimately to oxidative stress, which is one of the causes of the ageing process. Companion dogs share the same environment and lifestyle as humans, making them an excellent comparative model for the study of ageing, as well as they constitute a growing market for bioactive molecules that improve the quality of life of pets. The anti-ageing properties of oleuropein aglycone (OLE), a bioactive compound from olive leaves known for its antioxidant properties, were investigated in Myok9 canine muscle cell model. After incubation with OLE, senescence was induced in the canine cellular model by hydrogen peroxide (H2O2). Analyses were performed on cells after seven days of differentiation. The oxidative stress induced by H2O2 treatment on differentiated canine muscle cells led to a significant increase in ROS formation, which was reduced by OLE pretreatment alone or in combination with H2O2 by about 34% and 32%, respectively. Cells treated with H2O2 showed a 48% increase the area of senescent cells stained by SA-β-gal, while OLE significantly reduced the coloured area by 52%. OLE, alone or in combination with H2O2, showed a significant antioxidant activity, possibly through autophagy activation, as indicated by the expression of autophagic markers.
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Affiliation(s)
- Giulia Polacchini
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Italy
| | - Andrea Venerando
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Italy
| | - Monica Colitti
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Italy.
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Vecchio E, Marino R, Mimmi S, Canale C, Caiazza C, Arcucci A, Ruocco MR, Schiavone M, Santamaria G, Palmieri C, Iaccino E, Mallardo M, Quinto I, Fiume G. Enhanced pro-apoptotic activity of rituximab through IBTK silencing in non-Hodgkin lymphoma B-cells. Front Oncol 2024; 14:1339584. [PMID: 38371626 PMCID: PMC10869532 DOI: 10.3389/fonc.2024.1339584] [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: 11/17/2023] [Accepted: 01/17/2024] [Indexed: 02/20/2024] Open
Abstract
Rituximab is a commonly used chemotherapeutic drug for patients with aggressive lymphomas, such as non-Hodgkin's lymphoma (NHL). Currently, the combination of Rituximab and chemotherapy (R-CHOP) stands as the most prevalent first-line therapy for NHL. Nevertheless, the development of new therapeutic approaches remains imperative. An increasing body of evidence highlights a novel role for IBTK in tumorigenesis and cancer growth. In this study, we aim to broaden our understanding of IBTK's function in B-lymphoma, with a particular focus on its impact on the expression of the oncogene MYC. Here, we assessed the effects of combining Rituximab with IBTK silencing on cell viability through cell cycle analysis and Annexin V assays in vitro. Furthermore, we leveraged the transplantability of Eμ-myc lymphomas to investigate whether the inhibition of IBTK could elicit anti-tumor effects in the treatment of lymphomas in vivo. Our data suggests that IBTK silencing may serve as an effective anti-tumor agent for aggressive B-Lymphomas, underscoring its role in promoting apoptosis when used in combination with Rituximab, both in in vitro and in vivo settings.
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Affiliation(s)
- Eleonora Vecchio
- Department of Experimental and Clinical Medicine, University Magna Græcia of Catanzaro, Catanzaro, Italy
| | - Rossana Marino
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, Naples, Italy
| | - Selena Mimmi
- Department of Experimental and Clinical Medicine, University Magna Græcia of Catanzaro, Catanzaro, Italy
| | - Camilla Canale
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, Naples, Italy
| | - Carmen Caiazza
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, Naples, Italy
| | - Alessandro Arcucci
- Department of Public Health, University of Naples “Federico II”, Naples, Italy
| | - Maria Rosaria Ruocco
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, Naples, Italy
| | - Marco Schiavone
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Gianluca Santamaria
- Department of Experimental and Clinical Medicine, University Magna Græcia of Catanzaro, Catanzaro, Italy
| | - Camillo Palmieri
- Department of Experimental and Clinical Medicine, University Magna Græcia of Catanzaro, Catanzaro, Italy
| | - Enrico Iaccino
- Department of Experimental and Clinical Medicine, University Magna Græcia of Catanzaro, Catanzaro, Italy
| | - Massimo Mallardo
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, Naples, Italy
| | - Ileana Quinto
- Department of Experimental and Clinical Medicine, University Magna Græcia of Catanzaro, Catanzaro, Italy
| | - Giuseppe Fiume
- Department of Experimental and Clinical Medicine, University Magna Græcia of Catanzaro, Catanzaro, Italy
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Pirković A, Jovanović Krivokuća M, Vilotić A, Nacka-Aleksić M, Bojić-Trbojević Ž, Dekanski D. Oleuropein Stimulates Migration of Human Trophoblast Cells and Expression of Invasion-Associated Markers. Int J Mol Sci 2023; 25:500. [PMID: 38203672 PMCID: PMC10779171 DOI: 10.3390/ijms25010500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 12/22/2023] [Accepted: 12/26/2023] [Indexed: 01/12/2024] Open
Abstract
Successful pregnancy establishment requires highly synchronized cross talk between the invasive trophoblast cells and the receptive maternal endometrium. Any disturbances in this tightly regulated process may lead to pregnancy complications. Local factors such as nutrients, hormones, cytokines and reactive oxygen species modulate the invasion of extravillous trophoblasts through critical signaling cascades. Epidemiological studies strongly indicate that a Mediterranean diet can significantly impact molecular pathways during placentation. Therefore, the aim of the current study was to examine whether oleuropein (OLE), one of the main compounds of the Mediterranean diet, may influence trophoblast cell adhesion and migration, as well as the expression of invasion-associated molecular markers and inflammatory pathways fostering these processes. HTR-8/SVneo cells were incubated with OLE at selected concentrations of 10 and 100 µM for 24 h. Results showed that OLE did not affect trophoblast cell viability, proliferation and adhesion after 24 h in in vitro treatment. The mRNA expression of integrin subunits α1, α5 and β1, as well as matrix-degrading enzymes MMP-2 and -9, was significantly increased after treatment with 10 µM OLE. Furthermore, OLE at a concentration of 10 µM significantly increased the protein expression of integrin subunits α1 and β1. Also, OLE inhibited the activation of JNK and reduced the protein expression of COX-2. Finally, a lower concentration of OLE 10 µM significantly stimulated migration of HTR-8/SVneo cells. In conclusion, the obtained results demonstrate the effects of OLE on the function of trophoblast cells by promoting cell migration and stimulating the expression of invasion markers. As suggested from results, these effects may be mediated via inhibition of the JNK signaling pathway.
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Affiliation(s)
| | | | | | | | | | - Dragana Dekanski
- Institute for the Application of Nuclear Energy, Department for Biology of Reproduction, University of Belgrade, Banatska 31b, 11080 Belgrade, Serbia; (A.P.); (M.J.K.); (A.V.); (M.N.-A.); (Ž.B.-T.)
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Papadopoulos GA, Lioliopoulou S, Nenadis N, Panitsidis I, Pyrka I, Kalogeropoulou AG, Symeon GK, Skaltsounis AL, Stathopoulos P, Stylianaki I, Galamatis D, Petridou A, Arsenos G, Giannenas I. Effects of Enriched-in-Oleuropein Olive Leaf Extract Dietary Supplementation on Egg Quality and Antioxidant Parameters in Laying Hens. Foods 2023; 12:4119. [PMID: 38002177 PMCID: PMC10670734 DOI: 10.3390/foods12224119] [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: 10/24/2023] [Revised: 11/09/2023] [Accepted: 11/10/2023] [Indexed: 11/26/2023] Open
Abstract
The objective of the present study was to evaluate the effects of an olive leaf extract obtained with an up-to-date laboratory method, when supplemented at different levels in laying hens' diets, on egg quality, egg yolk antioxidant parameters, fatty acid content, and liver pathology characteristics. Thus, 96 laying hens of the ISA-Brown breed were allocated to 48 experimental cages with two hens in each cage, resulting in 12 replicates per treatment. Treatments were: T1 (Control: basal diet); T2 (1% olive leaf extract); T3 (2.5% olive leaf extract); T4 (Positive control: 0.1% encapsulated oregano oil). Eggshell weight and thickness were improved in all treatments compared to the control, with T2 being significantly higher till the end of the experiment (p < 0.001). Egg yolk MDA content was lower for the T2 and T4 groups, while total phenol content and Haugh units were greater in the T2. The most improved fatty acid profile was the one of T3 yolks. The α-tocopherol yolk content was higher in all groups compared to T1. No effect was observed on cholesterol content at any treatment. Based on the findings, it can be inferred that the inclusion of olive leaf extract at a concentration of 1% in the diet leads to enhancements in specific egg quality attributes, accompanied by an augmentation of the antioxidant capacity.
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Affiliation(s)
- Georgios A. Papadopoulos
- Laboratory of Animal Husbandry, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (S.L.); (G.A.)
| | - Styliani Lioliopoulou
- Laboratory of Animal Husbandry, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (S.L.); (G.A.)
| | - Nikolaos Nenadis
- Laboratory of Food Chemistry and Technology, School of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (N.N.); (I.P.); (A.G.K.)
| | - Ioannis Panitsidis
- Laboratory of Nutrition, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (I.P.); (I.G.)
| | - Ioanna Pyrka
- Laboratory of Food Chemistry and Technology, School of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (N.N.); (I.P.); (A.G.K.)
| | - Aggeliki G. Kalogeropoulou
- Laboratory of Food Chemistry and Technology, School of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (N.N.); (I.P.); (A.G.K.)
| | - George K. Symeon
- Institute of Animal Science, Hellenic Agricultural Organisation-DEMETER, 58100 Giannitsa, Greece;
| | - Alexios-Leandros Skaltsounis
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, University of Athens, 15771 Athens, Greece; (A.-L.S.); (P.S.)
| | - Panagiotis Stathopoulos
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, University of Athens, 15771 Athens, Greece; (A.-L.S.); (P.S.)
| | - Ioanna Stylianaki
- Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Dimitrios Galamatis
- Department of Animal Science, School of Agricultural Sciences, University of Thessaly, 41500 Larissa, Greece;
| | - Anatoli Petridou
- Laboratory of Evaluation of Human Biological Performance, School of Physical Education and Sport Science at Thessaloniki, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Georgios Arsenos
- Laboratory of Animal Husbandry, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (S.L.); (G.A.)
| | - Ilias Giannenas
- Laboratory of Nutrition, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (I.P.); (I.G.)
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Scicchitano S, Faniello MC, Mesuraca M. Zinc Finger 521 Modulates the Nrf2-Notch Signaling Pathway in Human Ovarian Carcinoma. Int J Mol Sci 2023; 24:14755. [PMID: 37834202 PMCID: PMC10572470 DOI: 10.3390/ijms241914755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/21/2023] [Accepted: 09/27/2023] [Indexed: 10/15/2023] Open
Abstract
The human zinc finger protein 521 (ZNF521) is a co-transcriptional factor with multiple recognized regulatory functions in a range of normal, cancer and stem cell compartments. ZNF521 regulates proliferation, progression and CSC (cancer stem cell) compartments in human ovarian cancer (hOC), which is a very aggressive and late-diagnosed female tumor. Two other important regulators of hOC are the NRF2 and NOTCH signaling pathways. In the present paper, the mRNA and protein levels of ZNF521 were correlated with those of the NRF2-NOTCH signaling components in two different hOC cell lines and in a public dataset of 381 hOC patients. The data show that high levels of ZNF521 significantly increase NRF2-NOTCH signaling expression; conversely, the silencing of ZNF521 impairs NRF2-NOTCH signaling. This experimental work shows that, in hOC, different levels of ZNF521 modulate the NRF2-NOTCH signaling pathway and also influences hOC CSC properties.
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Affiliation(s)
- Stefania Scicchitano
- Research Center of Biochemistry and Advanced Molecular Biology, Department of Experimental and Clinical Medicine, “Magna Graecia” University of Catanzaro, 88100 Catanzaro, Italy;
| | - Maria Concetta Faniello
- Research Center of Biochemistry and Advanced Molecular Biology, Department of Experimental and Clinical Medicine, “Magna Graecia” University of Catanzaro, 88100 Catanzaro, Italy;
| | - Maria Mesuraca
- Laboratory of Molecular Haematopoiesis and Stem Cell Biology, Department of Experimental and Clinical Medicine, University Magna Græcia, 88100 Catanzaro, Italy
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Vasilopoulou K, Papadopoulos GA, Lioliopoulou S, Pyrka I, Nenadis N, Savvidou S, Symeon G, Dotas V, Panitsidis I, Arsenos G, Giannenas I. Effects of Dietary Supplementation of a Resin-Purified Aqueous-Isopropanol Olive Leaf Extract on Meat and Liver Antioxidant Parameters in Broilers. Antioxidants (Basel) 2023; 12:1723. [PMID: 37760026 PMCID: PMC10525201 DOI: 10.3390/antiox12091723] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/31/2023] [Accepted: 09/02/2023] [Indexed: 09/29/2023] Open
Abstract
Olive leaves are byproducts οf the agro-industrial sector and are rich in bioactive compounds with antioxidant properties. They could be supplemented in poultry diets powdered or less frequently as extracts to improve performance, health and product quality. The objective of this study was to investigate the possible beneficial effects of an aqueous isopropanol olive leaf extract-purified through filtration (250-25 µm) and a resin (XAD-4)-when supplemented in broiler chickens' diets, on meat quality parameters, focusing mainly on antioxidant parameters as there is limited published information. For this purpose, four-hundred-and-eighty-day-old broilers were randomly assigned to four dietary treatments: T1 (control: basal diet); T2 (1% olive leaf extract); T3 (2.5% olive leaf extract); T4 (positive control: 0.1% encapsulated oregano oil commercially used as feed additive). At the end of the experimental period (day 42), the birds were slaughtered, and samples from breast, thigh meat and liver were collected for antioxidant parameters evaluation. On day 1, after slaughter, in thigh meat, Malondialdehyde (MDA) was lower in T2 compared to T3, and total phenolic content (TPC) was higher in T2 compared to T3 and T4. Total antioxidant capacity (TAC) was increased in T2 and T4 breast meat compared to the control. In liver, T4 treatment resulted in higher TPC. The lack of dose-dependent effect for olive leaf extract may be attributed to the pro-oxidant effects of some bioactive compounds found in olive leaves, such as oleuropein, when supplemented at higher levels. In summary, it can be inferred that the inclusion of 1% olive leaf extract in the feed of broilers has the potential to mitigate oxidation in broiler meat and maybe enhance its quality.
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Affiliation(s)
- Konstantina Vasilopoulou
- Laboratory of Nutrition, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Georgios A. Papadopoulos
- Laboratory of Animal Husbandry, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Styliani Lioliopoulou
- Laboratory of Animal Husbandry, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Ioanna Pyrka
- Laboratory of Food Chemistry and Technology, School of Chemistry, 54124 Thessaloniki, Greece
| | - Nikolaos Nenadis
- Laboratory of Food Chemistry and Technology, School of Chemistry, 54124 Thessaloniki, Greece
| | - Soumela Savvidou
- Institute of Animal Science, Hellenic Agricultural Organisation-DEMETER, 58100 Giannitsa, Greece
| | - George Symeon
- Institute of Animal Science, Hellenic Agricultural Organisation-DEMETER, 58100 Giannitsa, Greece
| | - Vassilios Dotas
- Department of Animal Production, Faculty of Agriculture, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Ioannis Panitsidis
- Laboratory of Nutrition, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Georgios Arsenos
- Laboratory of Animal Husbandry, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Ilias Giannenas
- Laboratory of Nutrition, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
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9
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Battaglia AM, Sacco A, Aversa I, Santamaria G, Palmieri C, Botta C, De Stefano R, Bitetto M, Petriaggi L, Giorgio E, Faniello CM, Costanzo F, Biamonte F. Iron-mediated oxidative stress induces PD-L1 expression via activation of c-Myc in lung adenocarcinoma. Front Cell Dev Biol 2023; 11:1208485. [PMID: 37377735 PMCID: PMC10291098 DOI: 10.3389/fcell.2023.1208485] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 05/31/2023] [Indexed: 06/29/2023] Open
Abstract
Introduction: The PD-1/PD-L1 axis is hijacked by lung adenocarcinoma (LUAD) cells to escape immune surveillance. PD-L1 expression in LUAD is affected, among others, by the metabolic trafficking between tumor cells and the tumor microenvironment (TME). Methods: Correlation between PD-L1 expression and iron content within the TME was established on FFPE LUAD tissue samples. The effects of an iron rich microenvironment on PD-L1 mRNA and protein levels were assessed in vitro in H460 and A549 LUAD by using qPCR, western blot and flow citometry. c-Myc knockdown was performed to validate the role of this transcription factor on PD-L1 expression. The effects of iron-induced PD-L1 on T cell immune function was assessed by quantifying IFN-γ release in a co-colture system. TCGA dataset was used to analyse the correlation between PD-L1 and CD71 mRNA expression in LUAD patients. Results: In this study, we highlight a significant correlation between iron density within the TME and PD-L1 expression in 16 LUAD tissue specimens. In agreement, we show that a more pronounced innate iron-addicted phenotype, indicated by a higher transferrin receptor CD71 levels, significantly correlates with higher PD-L1 mRNA expression levels in LUAD dataset obtained from TCGA database. In vitro, we demonstrate that the addition of Fe3+ within the culture media promotes the significant overexpression of PD-L1 in A549 and H460 LUAD cells, through the modulation of its gene transcription mediated by c-Myc. The effects of iron lean on its redox activity since PD-L1 up-regulation is counteracted by treatment with the antioxidant compound trolox. When LUAD cells are co-cultured with CD3/CD28-stimulated T cells in an iron-rich culture condition, PD-L1 up-regulation causes the inhibition of T-lymphocytes activity, as demonstrated by the significant reduction of IFN-γ release. Discussion: Overall, in this study we demonstrate that iron abundance within the TME may enhance PD-L1 expression in LUAD and, thus, open the way for the identification of possible combinatorial strategies that take into account the iron levels within the TME to improve the outcomes of LUAD patients treated with anti-PD-1/PD-L1-based therapies.
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Affiliation(s)
- Anna Martina Battaglia
- Laboratory of Biochemistry and Cellular Biology, Department of Experimental and Clinical Medicine, Magna Graecia University of Catanzaro, Catanzaro, Italy
| | - Alessandro Sacco
- Laboratory of Biochemistry and Cellular Biology, Department of Experimental and Clinical Medicine, Magna Graecia University of Catanzaro, Catanzaro, Italy
| | - Ilenia Aversa
- Laboratory of Immunology, Department of Experimental and Clinical Medicine, Magna Graecia University of Catanzaro, Catanzaro, Italy
| | - Gianluca Santamaria
- Laboratory of Molecular Oncology, Department of Experimental and Clinical Medicine, Magna Graecia University of Catanzaro, Catanzaro, Italy
| | - Camillo Palmieri
- Laboratory of Immunology, Department of Experimental and Clinical Medicine, Magna Graecia University of Catanzaro, Catanzaro, Italy
| | - Cirino Botta
- Department of Health Promotion, Mother, and Child Care, Internal Medicine and Medical Specialties, University of Palermo, Palermo, Italy
| | - Roberto De Stefano
- Operational Unit of Anatomic Pathology, Annunziata Hospital, Cosenza, Italy
| | - Maurizio Bitetto
- Operational Unit of Thoracic Surgery, Annunziata Hospital, Cosenza, Italy
| | - Lavinia Petriaggi
- Laboratory of Biochemistry and Cellular Biology, Department of Experimental and Clinical Medicine, Magna Graecia University of Catanzaro, Catanzaro, Italy
| | - Emanuele Giorgio
- Laboratory of Biochemistry and Cellular Biology, Department of Experimental and Clinical Medicine, Magna Graecia University of Catanzaro, Catanzaro, Italy
| | - Concetta Maria Faniello
- Laboratory of Biochemistry and Cellular Biology, Department of Experimental and Clinical Medicine, Magna Graecia University of Catanzaro, Catanzaro, Italy
| | - Francesco Costanzo
- Laboratory of Biochemistry and Cellular Biology, Department of Experimental and Clinical Medicine, Magna Graecia University of Catanzaro, Catanzaro, Italy
- Department of Experimental and Clinical Medicine, Center of Interdepartmental Services (CIS), Magna Graecia University of Catanzaro, Catanzaro, Italy
| | - Flavia Biamonte
- Laboratory of Biochemistry and Cellular Biology, Department of Experimental and Clinical Medicine, Magna Graecia University of Catanzaro, Catanzaro, Italy
- Department of Experimental and Clinical Medicine, Center of Interdepartmental Services (CIS), Magna Graecia University of Catanzaro, Catanzaro, Italy
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