1
|
Giovanini de Oliveira Sartori A, Martelli Chaib Saliba AS, Sêneda Martarello N, Goldoni Lazarini J, Pedroso Gomes do Amaral JE, Fernandes Pinto da Luz C, Alencar SMD. Changes in phenolic profile and anti-inflammatory activity of Baccharis beebread during gastrointestinal digestion/intestinal permeability in vitro. Food Chem 2024; 432:137234. [PMID: 37634341 DOI: 10.1016/j.foodchem.2023.137234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 08/02/2023] [Accepted: 08/20/2023] [Indexed: 08/29/2023]
Abstract
Knowledge about the fate of beebread bioactive compounds throughout the human gastrointestinal tract are scarce. The present study aimed at assessing the effects of gastrointestinal digestion followed by intestinal permeability in vitro on phenolic profile and anti-inflammatory activity of Baccharis beebread. Palynological analysis confirmed the beebread is predominantly composed by pollen grains from Baccharis species, which are endemic in south and southeast Brazil. Flavonols and phenylamides were found in beebread hydroalcoholic extract by HPLC-ESI-QTOF-MS analysis. Moreover, simulated digestion lead to compounds' breakage, releasing both aglycones from glycosylated flavonols and p-coumaric acid, but not caffeic acid from phenylamides. Only spermidines crossed the Caco-2 cell monolayer, possibly due to spermine oxidation. Free p-coumaric acid was released after digestion, and epithelial transport. Concomitantly, NF-κΒ activation and TNF-α level was decreased by beebread even after Caco-2 transport, which indicates spermidines conjugated with p-coumaric acid may be bioavailable compounds with anti-inflammatory activity.
Collapse
Affiliation(s)
| | | | - Natalia Sêneda Martarello
- Instituto de Pesquisas Ambientais, Secretaria de Meio Ambiente, Infraestrutura e Logística de São Paulo, São Paulo, SP, Brazil
| | - Josy Goldoni Lazarini
- Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo, Piracicaba, SP, Brazil
| | | | - Cynthia Fernandes Pinto da Luz
- Instituto de Pesquisas Ambientais, Secretaria de Meio Ambiente, Infraestrutura e Logística de São Paulo, São Paulo, SP, Brazil
| | - Severino Matias de Alencar
- Centro de Energia Nuclear na Agricultura, Universidade de São Paulo, Piracicaba, SP, Brazil; Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo, Piracicaba, SP, Brazil.
| |
Collapse
|
2
|
Fanourakis G, Kyrodimos E, Papanikolaou V, Chrysovergis A, Kafiri G, Papanikolaou N, Verykokakis M, Tosios K, Vastardis H. APOBEC3B Is Co-Expressed with PKCα/NF-κB in Oral and Oropharyngeal Squamous Cell Carcinomas. Diagnostics (Basel) 2023; 13:diagnostics13030569. [PMID: 36766673 PMCID: PMC9914863 DOI: 10.3390/diagnostics13030569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/28/2023] [Accepted: 01/29/2023] [Indexed: 02/05/2023] Open
Abstract
The enzymatic activity of APOBEC3B (A3B) has been implicated as a prime source of mutagenesis in head and neck squamous cell carcinoma (HNSCC). The expression of Protein Kinase C α (PKCα) and Nuclear Factor-κΒ p65 (NF-κΒ p65) has been linked to the activation of the classical and the non-canonical NF-κB signaling pathways, respectively, both of which have been shown to lead to the upregulation of A3B. Accordingly, the aim of the present study was to evaluate the expression of PKCα, NF-κΒ p65 and A3B in non-HPV related oral and oropharyngeal squamous cell carcinomas (SCC), by means of immunohistochemistry and in silico methods. PKCα was expressed in 29/36 (80%) cases of oral and oropharyngeal SCCs, with 25 (69%) cases showing a PKCα+/A3B+ phenotype and only 6/36 (17%) cases showing a PKCα-/A3B+ phenotype. Εxpression of NF-κB p65 was seen in 33/35 (94%) cases of oral and oropharyngeal SCCs, with 30/35 (86%) cases showing an NF-κB p65+/A3B+ phenotype and only 2/35 (6%) cases showing an NF-κB p65-/A3B+ phenotype. In addition, mRNA expression analysis, using the UALCAN database, revealed strong expression of all three genes. These findings indicate that the expression of A3B is associated with PKCα/NF-κB p65 expression and suggest a potential role for the PKC/NF-κB signaling pathway in the development of oral and oropharyngeal cancer.
Collapse
Affiliation(s)
- Galinos Fanourakis
- Department of Oral Biology, School of Dentistry, National and Kapodistrian University of Athens, 2 Thivon Str., 11527 Athens, Greece
- Correspondence:
| | - Efthymios Kyrodimos
- 1st ENT Department, Hippokration Hospital, School of Medicine, National and Kapodistrian University of Athens, 114 Vasilissis Sophias Ave., 11527 Athens, Greece
| | - Vasileios Papanikolaou
- 1st ENT Department, Hippokration Hospital, School of Medicine, National and Kapodistrian University of Athens, 114 Vasilissis Sophias Ave., 11527 Athens, Greece
| | - Aristeidis Chrysovergis
- 1st ENT Department, Hippokration Hospital, School of Medicine, National and Kapodistrian University of Athens, 114 Vasilissis Sophias Ave., 11527 Athens, Greece
| | - Georgia Kafiri
- Department of Pathology, Hippokration Hospital, 114 Vasilissis Sophias Ave., 11527 Athens, Greece
| | - Nikolaos Papanikolaou
- EnzyQuest PC, Science and Technology Park of Crete, 100 Nikolaou Plastira Str., Vassilika Vouton, 70013 Heraklion, Greece
| | - Mihalis Verykokakis
- Institute for Fundamental Biomedical Research, BSRC Alexander Fleming, 34 Fleming Str., 16672 Vari, Greece
| | - Konstantinos Tosios
- Department of Oral Pathology, Medicine and Hospital Dentistry, School of Dentistry, National and Kapodistrian University of Athens, 2 Thivon Str., 11527 Athens, Greece
| | - Heleni Vastardis
- Department of Orthodontics, School of Dentistry, National and Kapodistrian University of Athens, 2 Thivon Str., 11527 Athens, Greece
| |
Collapse
|
3
|
Fu Y, Du M, Cao Z, He H. PGC-1α attenuates TNF-α-induced inflammatory responses in OCCM-30 cells. J Periodontal Res 2022; 57:1024-1033. [PMID: 35903958 DOI: 10.1111/jre.13042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 07/05/2022] [Accepted: 07/15/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND AND OBJECTIVES Peroxisome proliferator-activated receptor-γ coactivator (PGC)-1α, a master regulator of mitochondrial biogenesis and oxidative metabolism, has been associated with many inflammatory diseases. However, little is known about the function and mechanism of PGC-1α in cementoblasts under periodontitis. Our study aimed to investigate the effects of PGC-1α in immortalized cementoblast cell line OCCM-30 under TNF-α stimulation. MATERIALS AND METHODS OCCM-30 cells were cultured and exposed to TNF-α, and PGC-1α expression was assessed by Quantitative real-time polymerase chain reaction (qRT-PCR) and western blotting. Chemical inhibitors targeting various signaling pathways including NF-κB, p38 MAPK, Akt, and p53 were used to identify the regulatory mechanism involved. ZLN005 was used to upregulate PGC-1α and the subsequent alteration of inflammatory cytokines expression under TNF-α stimulation were examined by qRT-PCR and Elisa. PGC-1α siRNA was employed to further verify the role of PGC-1α in inflammatory response. Dual-reporter gene assays were performed to examine the transcriptional activity of p65, and the phosphorylation level of p65 was evaluated by western blotting. Immunofluorescence assays and nuclear and cytoplasmic extractions were performed to check the nuclear translocation of p65. Coimmunoprecipitation studies were also performed to check whether there is direct binding between p65 and PGC-1α. RESULTS TNF-α suppressed PGC-1α expression in OCCM-30 cells. Blocking p38 MAPK pathways restored the expression of PGC-1α. ZLN005 can upregulate PGC-1α in OCCM-30 cells. The upregulation of PGC-1α by ZLN005 inhibited TNF-α-induced proinflammatory cytokine expression, which was impaired by the transfection of PGC-1α siRNA. Knocking down PGC-1α also partially restored the ZLN005-decreased transcriptional activity of p65. However, the phosphorylation level and nuclear translocation of p65 were not significantly affected by PGC-1α. It was found that p65 was bound to PGC-1α in OCCM-30 cells stimulated by TNF-α, and the binding was increased upon ZLN005 treatment. CONCLUSIONS PGC-1α can attenuate TNF-α-induced inflammatory responses in OCCM-30 cells.
Collapse
Affiliation(s)
- Yihui Fu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Mingyuan Du
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Orthodontics, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Zhengguo Cao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Periodontology, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Hong He
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Orthodontics, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| |
Collapse
|
4
|
Joung EJ, Cao L, Gwon WG, Kwon MS, Lim KT, Kim HR. Meroterpenoid-Rich Ethanoic Extract of Sargassum macrocarpum Ameliorates Dextran Sulfate Sodium-Induced Colitis in Mice. Foods 2022; 11:foods11030329. [PMID: 35159480 PMCID: PMC8834051 DOI: 10.3390/foods11030329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/18/2022] [Accepted: 01/21/2022] [Indexed: 11/28/2022] Open
Abstract
Colitis is a colon mucosal disorder characterized by intestinal damage and inflammation. This current study aimed to evaluate the effect of meroterpenoid-rich ethanoic extract of a brown algae, Sargassum macrocarpum (MES) on dextran sulfate sodium (DSS)-induced colitis in mice and explore the possible mechanisms. Mice were given 4% DSS in drinking water for 7 days to induce colitis, followed by 3 days of regular water. MES (12 mg/kg body weight) or celecoxib (10 mg/kg body weight) was administrated orally to mice on a daily basis during these 10 days. Both MES and celecoxib supplementations significantly attenuated DSS-induced weight loss, shortening of colon length, elevated myeloperoxidase activity as well as histomorphological changes of colon. MES and celecoxib reduced the inflammation level of colon tissue, as indicated by its suppression on a panel of pro-inflammatory cytokines, including interleukin (IL)-1β, IL-17, tumor necrosis factor α, and interferon γ, and a group of inflammatory proteins, including intracellular adhesion molecule 1, vascular adhesion molecule 1, matrix metalloproteinase (MMP)-2, MMP-9, MMP-13, and inducible nitric oxidase. In addition, their administration down-regulated pro-inflammatory cytokines in serum. Moreover, the supplementation of MES suppressed the DSS-induced hyperactivation of Akt, JNK, and NF-κB signaling pathways. Taken together, our results demonstrate that MES ameliorates DSS-induced colitis in mice, suggesting that MES may have therapeutic implications for the treatment of colitis.
Collapse
Affiliation(s)
- Eun-Ji Joung
- Department of Food Science and Nutrition, Pukyong National University, Busan 608737, Korea; (E.-J.J.); (W.-G.G.); (M.-S.K.)
| | - Lei Cao
- Institute of Marine Sciences, Pukyong National University, Busan 608737, Korea;
| | - Wi-Gyeong Gwon
- Department of Food Science and Nutrition, Pukyong National University, Busan 608737, Korea; (E.-J.J.); (W.-G.G.); (M.-S.K.)
| | - Mi-Sung Kwon
- Department of Food Science and Nutrition, Pukyong National University, Busan 608737, Korea; (E.-J.J.); (W.-G.G.); (M.-S.K.)
| | - Kwon Taek Lim
- Department of Display Engineering, Pukyong National University, Busan 608737, Korea;
- Department of Smart Green Technology Engineering, Pukyong National University, Busan 608737, Korea
| | - Hyeung-Rak Kim
- Department of Food Science and Nutrition, Pukyong National University, Busan 608737, Korea; (E.-J.J.); (W.-G.G.); (M.-S.K.)
- Correspondence: ; Tel.: +82-051-629-5847
| |
Collapse
|
5
|
Tichy ED, Ma N, Sidibe D, Loro E, Kocan J, Chen DZ, Khurana TS, Hasty P, Mourkioti F. Persistent NF-κB activation in muscle stem cells induces proliferation-independent telomere shortening. Cell Rep 2021; 35:109098. [PMID: 33979621 PMCID: PMC8183356 DOI: 10.1016/j.celrep.2021.109098] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 11/30/2020] [Accepted: 04/16/2021] [Indexed: 12/30/2022] Open
Abstract
During the repeated cycles of damage and repair in many muscle disorders, including Duchenne muscular dystrophy (DMD), the muscle stem cell (MuSC) pool becomes less efficient at responding to and repairing damage. The underlying mechanism of such stem cell dysfunction is not fully known. Here, we demonstrate that the distinct early telomere shortening of diseased MuSCs in both mice and young DMD patients is associated with aberrant NF-κB activation. We find that prolonged NF-κB activation in MuSCs in chronic injuries leads to shortened telomeres and Ku80 dysregulation and results in severe skeletal muscle defects. Our studies provide evidence of a role for NF-κB in regulating stem-cell-specific telomere length, independently of cell replication, and could be a congruent mechanism that is applicable to additional tissues and/or diseases characterized by systemic chronic inflammation. Tichy et al. reveal a role for NF-κB signaling in regulating telomere length in muscle stem cells (MuSCs) after chronic injuries. Persistent activation of NF-κB leads to shortened telomeres, Ku80 dysregulation, and muscle defects. The findings link stem cell dysfunction and NF-κB-dependent telomere shortening in Duchenne muscular dystrophy.
Collapse
Affiliation(s)
- Elisia D Tichy
- Department of Orthopaedic Surgery, Perelman School of Medicine, The University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Nuoying Ma
- Department of Orthopaedic Surgery, Perelman School of Medicine, The University of Pennsylvania, Philadelphia, PA 19104, USA
| | - David Sidibe
- Department of Orthopaedic Surgery, Perelman School of Medicine, The University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Emanuele Loro
- Department of Physiology and Pennsylvania Muscle Institute, Perelman School of Medicine, The University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jacob Kocan
- Department of Orthopaedic Surgery, Perelman School of Medicine, The University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Delia Z Chen
- Department of Orthopaedic Surgery, Perelman School of Medicine, The University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Tejvir S Khurana
- Department of Physiology and Pennsylvania Muscle Institute, Perelman School of Medicine, The University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Paul Hasty
- The Sam and Ann Barshop Institute for Longevity and Aging Studies, UT Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Foteini Mourkioti
- Department of Orthopaedic Surgery, Perelman School of Medicine, The University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Cell and Developmental Biology, Perelman School of Medicine, The University of Pennsylvania, Philadelphia, PA 19104, USA; Institute of Regenerative Medicine, Musculoskeletal Regeneration Program, Perelman School of Medicine, The University of Pennsylvania, Philadelphia, PA 19104, USA.
| |
Collapse
|
6
|
Choudhury C, Mazumder R, Biswas R, Sengupta M. Cadmium exposure induces inflammation through the canonical NF-κΒ pathway in monocytes/macrophages of Channa punctatus Bloch. Fish Shellfish Immunol 2021; 110:116-126. [PMID: 33453382 DOI: 10.1016/j.fsi.2021.01.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 12/27/2020] [Accepted: 01/10/2021] [Indexed: 06/12/2023]
Abstract
A vast range of research related to the toxicity of the heavy metal cadmium (Cd) has been carried out in a wide variety of fish species. However, Cd induced immunomodulation in monocytes/macrophages of Channa punctatus Bloch. has rarely been explored. The present study was designed to determine Cd induced immune response, role of NF-κB (nuclear factor kappa B) pathway and the subsequent downstream molecular responses in monocytes/macrophages of C. punctatus. Fish were sampled and acclimatized, with one group treated with cadmium chloride (CdCl2) (1.96 mg/L) and another kept as untreated control group, both under observation for 7 days. Exposure to CdCl2 was found to alter hematological profile of C. punctatus in addition to incurring histo-architectural damages in the HK (head kidney) and ultrastructural changes in the monocytes/macrophages. The innate immune potential was found to be significantly compromised as evident from decreased phagocytosis, intracellular killing, cell adhesion and reduced release of nitric oxide (NO) and myeloperoxidase (MPO) in Cd intoxicated group. Also Cd triggered ROS generation, reduced cellular NO levels by forming peroxynitrite along with the upregulated expression of the inflammatory marker iNOS (inducible nitric oxide synthase) in monocytes/macrophages, both at mRNA and protein levels, indicating inflammation. Inflammation is further verified from the upregulated expression of proinflammatory cytokines viz. TNF-α, IL-1β, IL-6, IL-12 along with a central inflammatory mediator NF-κΒ and downregulation of the anti-inflammatory cytokine IL-10, both at mRNA and protein levels. It can be concluded that, a sub-lethal exposure of Cd in C. punctatus for 7 days caused significant alterations in the hematological, histological and ultrastructural profile in monocytes/macrophages; impaired innate immune parameters, triggers ROS generation and inflammation as validated from the upregulated expression of NF-κΒ, iNOS, TNF-α, IL-1β, IL-6, IL-12 and IL-10 downregulation.
Collapse
Affiliation(s)
- Chohelee Choudhury
- Department of Biotechnology, Assam University, Silchar, Assam, 788011, India
| | - Ritwik Mazumder
- Department of Economics, Assam University, Silchar, Assam, 788011, India
| | - Rajib Biswas
- Department of Pathology, Silchar Medical College, Silchar, Assam, 788014, India
| | - Mahuya Sengupta
- Department of Biotechnology, Assam University, Silchar, Assam, 788011, India.
| |
Collapse
|
7
|
Karra AG, Tziortziou M, Kylindri P, Georgatza D, Gorgogietas VA, Makiou A, Krokida A, Tsialtas I, Kalousi FD, Papadopoulos GE, Papadopoulou KΚ, Psarra AMG. Boswellic acids and their derivatives as potent regulators of glucocorticoid receptor actions. Arch Biochem Biophys 2020; 695:108656. [PMID: 33127380 DOI: 10.1016/j.abb.2020.108656] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 10/19/2020] [Accepted: 10/24/2020] [Indexed: 12/20/2022]
Abstract
Glucocorticoid (GCs) hormones exert their actions via their cognate steroid receptors the Glucocorticoid Receptors (GR), by genomic or non-genomic mechanisms of actions. GCs regulate many cellular functions among them growth, metabolism, immune response and apoptosis. Due to their cell type specific induction of apoptosis GCs are used for the treatment of certain type of cancer. In addition, due to their anti-inflammatory actions, GCs are among the most highly prescribed drug to treat chronic inflammatory disorders, albeit to the many adverse side effects arising by their long term and high doses use. Thus, there is a high need for selective glucocorticoid receptor agonist - modulators (SEGRA- SGRMs) as effective as classic GCs, but with a reduced side effect profile. Boswellic acids (BAs) are triterpenes that show structural similarities with GCs and exhibit anti-inflammatory and anti-cancer activities. In this study we examined whether BA alpha and beta and certain BAs derivatives exert their actions, at least in part, through the regulation of GR activities. Applying docking analysis we found that BAs can bind stably into the deacylcortivazol (DAC) accommodation pocket of GR. Moreover we showed that certain boswellic acids derivatives induce glucocorticoid receptor nuclear translocation, no activation of GRE dependent luciferase gene expression, and suppression of the TNF-α induced NF-κB transcriptional activation in GR positive HeLa and HEK293 cells, but not in low GR level COS-7 cells. Furthermore, certain boswellic acids compounds exert antagonistic effect on the DEX-induced GR transcriptional activation and induce cell type specific mitochondrial dependent apoptosis. Our results indicate that certain BAs are potent selective glucocorticoid receptor regulators and could have great potential for therapeutic use.
Collapse
Affiliation(s)
- Aikaterini G Karra
- Department of Biochemistry and Biotechnology, University of Thessaly, Larissa, Greece
| | - Maria Tziortziou
- Department of Biochemistry and Biotechnology, University of Thessaly, Larissa, Greece
| | - Paraskevi Kylindri
- Department of Biochemistry and Biotechnology, University of Thessaly, Larissa, Greece
| | - Dimitra Georgatza
- Department of Biochemistry and Biotechnology, University of Thessaly, Larissa, Greece
| | - Vyron A Gorgogietas
- Department of Biochemistry and Biotechnology, University of Thessaly, Larissa, Greece
| | - Anthi Makiou
- Department of Biochemistry and Biotechnology, University of Thessaly, Larissa, Greece
| | - Afroditi Krokida
- Department of Biochemistry and Biotechnology, University of Thessaly, Larissa, Greece
| | - Ioannis Tsialtas
- Department of Biochemistry and Biotechnology, University of Thessaly, Larissa, Greece
| | - Foteini D Kalousi
- Department of Biochemistry and Biotechnology, University of Thessaly, Larissa, Greece
| | | | | | - Anna-Maria G Psarra
- Department of Biochemistry and Biotechnology, University of Thessaly, Larissa, Greece.
| |
Collapse
|
8
|
Triantafyllou EA, Mylonis I, Simos G, Paraskeva E. Hypoxia Induces Pro-Fibrotic and Fibrosis Marker Genes in Hepatocellular Carcinoma Cells Independently of Inflammatory Stimulation and the NF-κΒ Pathway. Hypoxia (Auckl) 2019; 7:87-91. [PMID: 31921932 PMCID: PMC6935274 DOI: 10.2147/hp.s235967] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 12/16/2019] [Indexed: 01/04/2023]
Abstract
Hypoxia and its key mediators hypoxia inducible Factors (HIFs) are implicated in the development of liver diseases of diverse etiologies, often in interplay with inflammatory mediators. We investigated the interplay between hypoxia and proinflammatory mediators in the development of liver fibrosis, using human hepatocellular carcinoma Huh7 cells as a model. Treatment of Huh7 with DMOG or under hypoxia, induced HIF-1α protein levels and the expression of genes for pro-fibrotic (TGF-β1, PDGFC, PAI-1) and fibrosis (LOX, P4HA1, P4HB) markers. Knockdown of HIF-1α decreased the induction of PDGFC, LOX and P4HA1, showing the involvement of HIF-1 in their regulation. Interestingly, incubation of Huh7 cells under hypoxia did not cause activation of the NF-κΒ pathway. In contrast, inflammatory mediators such as tumor necrosis factor α (TNFα) and lipopolysaccharides (LPS) activated the NF-κΒ pathway, but failed to increase HIF-1α protein levels. Moreover, TNFα had a weaker effect than hypoxia on the induction or did not induce pro-fibrotic and fibrosis markers, respectively, while LPS enhanced only the hypoxic induction of P4HB. In conclusion, the above findings suggest that hypoxia and HIF-1 play an important role in the development of fibrosis in hepatocellular carcinoma, which appears to be independent of the activation of the NF-κΒ pathway.
Collapse
Affiliation(s)
| | - Ilias Mylonis
- Department of Biochemistry, Faculty of Medicine, University of Thessaly, Larissa, Greece
| | - George Simos
- Department of Biochemistry, Faculty of Medicine, University of Thessaly, Larissa, Greece
| | - Efrosyni Paraskeva
- Department of Physiology, Faculty of Medicine, University of Thessaly, Larissa, Greece
| |
Collapse
|
9
|
Shi G, Zheng X, Wu X, Wang S, Wang Y, Xing F. All-trans retinoic acid reverses epithelial-mesenchymal transition in paclitaxel-resistant cells by inhibiting nuclear factor kappa B and upregulating gap junctions. Cancer Sci 2018; 110:379-388. [PMID: 30375704 PMCID: PMC6317959 DOI: 10.1111/cas.13855] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Revised: 10/18/2018] [Accepted: 10/23/2018] [Indexed: 01/12/2023] Open
Abstract
Paclitaxel is a widely used chemotherapy drug, but development of resistance leads to treatment failure. Tumor cells that are treated with a sublethal dose of paclitaxel for a long period of time show the epithelial‐mesenchymal transition (EMT) phenotype, which leads to metastasis and resistance. All‐trans retinoic acid (ATRA) is always used in combination with paclitaxel and can reverse EMT in many types of cancer cells. The ability of ATRA to reverse EMT in chemoresistant cells is still unknown. In the present study, the ability of ATRA to reverse EMT in paclitaxel‐resistant cells was investigated. Three colorectal cancer cell lines, HCT116, LoVo and CT26, were treated with sublethal doses of paclitaxel to create resistant cell lines. Western blotting, immunocytochemistry, and “parachute” dye‐coupling assays showed that ATRA reverses EMT, inhibits nuclear factor kappa B (NF‐κΒ), and upregulates gap junctions in paclitaxel‐resistant cells. Scratch wound‐healing and Transwell assays showed that ATRA decreases the migration and invasion abilities of paclitaxel‐resistant cells. In addition, the CT26 cell line was used in the Balb/c pulmonary metastasis model to show that ATRA reduces metastasis of paclitaxel‐resistant cells in vivo. Given these data, ATRA may reverse EMT by inhibiting NF‐κΒ and upregulating gap junctions in paclitaxel‐resistant cells.
Collapse
Affiliation(s)
- Guiling Shi
- Tianjin Union Medical Center, Tianjin, China
| | | | - Xiaojing Wu
- Tianjin Union Medical Center, Tianjin, China
| | - Siqi Wang
- Tianjin Union Medical Center, Tianjin, China
| | - Yijia Wang
- Tianjin Union Medical Center, Tianjin, China.,State Key Laboratory of Medicinal Chemical Biology, NanKai University, Tianjin, China
| | - Fei Xing
- School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo, China
| |
Collapse
|
10
|
Shi G, Zheng X, Zhang S, Wu X, Yu F, Wang Y, Xing F. Kanglaite inhibits EMT caused by TNF-α via NF-κΒ inhibition in colorectal cancer cells. Oncotarget 2017; 9:6771-6779. [PMID: 29467927 PMCID: PMC5805513 DOI: 10.18632/oncotarget.23645] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 12/01/2017] [Indexed: 12/24/2022] Open
Abstract
Tumor necrosis factor-alpha is a critical pro-inflammatory cytokine produced by macrophages and was once considered an anti-tumor agent. However, a low dose of tumor necrosis factor-alpha can cause epithelial mesenchymal transition, angiogenesis and metastasis. NF-κΒ contributes to epithelial mesenchymal transition induced by tumor necrosis factor-alpha. Kanglaite, an extract from the Coix lacryma-jobi (adlay) seed, is an NF-κΒ inhibitor. The aim of this study was to investigate whether Kanglaite could inhibit epithelial mesenchymal transition caused by tumor necrosis factor-alpha using four colorectal cancer cell lines, HCT106, HCT116, LoVo and CT26. Our results showed that tumor necrosis factor-alpha -mediated activation of NF-κΒ, caused changes in epithelial mesenchymal transition -related protein expression, and increased migration and invasion in all four cell lines. However, these effects were inhibited by Kanglaite when used in combination with tumor necrosis factor-alpha. In a subcutaneous tumor model of CT26, tumor necrosis factor-alpha enhanced the tumorigenic ability of the cells, and again this was inhibited by Kanglaite. However, treatment with Kanglaite alone caused almost no inhibition of epithelial mesenchymal transition -mediated tumor growth, when cells were pretreated with tumor necrosis factor-alpha prior to injection. These results suggest that Kanglaite inhibits tumor necrosis factor-alpha -mediated epithelial mesenchymal transition in colorectal cancer cell lines via inhibition of NF-κΒ.
Collapse
Affiliation(s)
- Guiling Shi
- Tianjin Union Medical Center, Tianjin 300121, China
| | - Xiaoli Zheng
- Tianjin Union Medical Center, Tianjin 300121, China
| | - Shiwu Zhang
- Tianjin Union Medical Center, Tianjin 300121, China
| | - Xiaojing Wu
- Tianjin Union Medical Center, Tianjin 300121, China
| | - Fei Yu
- School of Pharmacy, Tianjin Medical University, Tianjin 300121, China
| | - Yijia Wang
- Tianjin Union Medical Center, Tianjin 300121, China
| | - Fei Xing
- The Key Laboratory of Weak Light Nonlinear Photonics, Ministry of Education, Teda Applied Physics School and School of Physics, Nankai University, Tianjin 300071, China
| |
Collapse
|
11
|
Reale C, Zotti T, Scudiero I, Vito P, Stilo R. The NF-κB Family of Transcription Factors and Its Role in Thyroid Physiology. Vitam Horm 2018; 106:195-210. [PMID: 29407436 DOI: 10.1016/bs.vh.2017.05.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The nuclear factor (NF)-κB signaling pathway controls a variety of important biological functions, including immune and inflammatory responses, differentiation, cell growth, tumorigenesis, and apoptosis. Two distinct pathways of NF-κB activation are known. The classical, canonical pathway is found virtually in all mammalian cells and NF-κB activation is mediated by the IKK complex, consisting of the IKK1/IKKα and IKK2/IKKβ catalytic kinase subunits and the NF-κB essential modulator (NEMO)/IKKγ protein. The NF-κB-driven transcriptional responses to many different stimuli have been widely characterized in the pathophysiology of the mammalian immune system, mainly because this transcription factor regulates the expression of cytokines, growth factors, and effector enzymes in response to ligation of cellular receptors involved in immunity and inflammation. However, an impressive literature produced in the last two decades shows that NF-κB signaling plays an important role also outside of the immune system, performing different roles and functions depending on the type of tissue and organ. In thyroid, NF-κB signaling is crucial for thyrocytes survival and expression of critical thyroid markers, including Nis, Ttf1, Pax8, Tpo, and thyroglobulin, making this transcription factor essential for maintenance of normal thyroid function.
Collapse
|
12
|
Savva CG, Totokotsopoulos S, Nicolaou KC, Neophytou CM, Constantinou AI. Selective activation of TNFR1 and NF-κB inhibition by a novel biyouyanagin analogue promotes apoptosis in acute leukemia cells. BMC Cancer 2016; 16:279. [PMID: 27098354 PMCID: PMC4839067 DOI: 10.1186/s12885-016-2310-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 04/12/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Acquired resistance towards apoptosis is a hallmark of cancer. Elimination of cells bearing activated oncogenes or stimulation of tumor suppressor mediators may provide a selection pressure to overcome resistance. KC-53 is a novel biyouyanagin analogue known to elicit strong anti-inflammatory and anti-viral activity. The current study was designed to evaluate the anticancer efficacy and molecular mechanisms of KC-53 against human cancer cells. METHODS Using the MTT assay we examined initially how KC-53 affects the proliferation rates of thirteen representative human cancer cell lines in comparison to normal peripheral blood mononuclear cells (PBMCs) and immortalized cell lines. To decipher the key molecular events underlying its mode of action we selected the human promyelocytic leukemia HL-60 and the acute lymphocytic leukemia CCRF/CEM cell lines that were found to be the most sensitive to the antiproliferative effects of KC-53. RESULTS KC-53 promoted rapidly and irreversibly apoptosis in both leukemia cell lines at relatively low concentrations. Apoptosis was characterized by an increase in membrane-associated TNFR1, activation of Caspase-8 and proteolytic inactivation of the death domain kinase RIP1 indicating that KC-53 induced mainly the extrinsic/death receptor apoptotic pathway. Regardless, induction of the intrinsic/mitochondrial pathway was also achieved by Caspase-8 processing of Bid, activation of Caspase-9 and increased translocation of AIF to the nucleus. FADD protein knockdown restored HL-60 and CCRF/CEM cell viability and completely blocked KC-53-induced apoptosis. Furthermore, KC-53 administration dramatically inhibited TNFα-induced serine phosphorylation on TRAF2 and on IκBα hindering therefore p65/NF-κΒ translocation to nucleus. Reduced transcriptional expression of pro-inflammatory and pro-survival p65 target genes, confirmed that the agent functionally inhibited the transcriptional activity of p65. CONCLUSIONS Our findings demonstrate, for the first time, the selective anticancer properties of KC-53 towards leukemic cell lines and provide a detailed understanding of the molecular events underlying its dual anti-proliferative and pro-apoptotic properties. These results provide new insights into the development of innovative and targeted therapies for the treatment of some forms of leukemia.
Collapse
Affiliation(s)
- Christiana G Savva
- Department of Biological Sciences, University of Cyprus, Kallipoleos 75, Nicosia, 01678, Cyprus
| | - Sotirios Totokotsopoulos
- Department of Chemistry, BioScience Research Collaborative, Rice University, 6500 Main Street, Houston, TX, 77005, USA
| | - Kyriakos C Nicolaou
- Department of Chemistry, BioScience Research Collaborative, Rice University, 6500 Main Street, Houston, TX, 77005, USA
| | - Christiana M Neophytou
- Department of Biological Sciences, University of Cyprus, Kallipoleos 75, Nicosia, 01678, Cyprus
| | - Andreas I Constantinou
- Department of Biological Sciences, University of Cyprus, Kallipoleos 75, Nicosia, 01678, Cyprus.
| |
Collapse
|
13
|
Triantafyllidis I, Poutahidis T, Taitzoglou I, Kesisoglou I, Lazaridis C, Botsios D. Treatment with Mesna and n-3 polyunsaturated fatty acids ameliorates experimental ulcerative colitis in rats. Int J Exp Pathol 2016; 96:433-43. [PMID: 26852691 DOI: 10.1111/iep.12163] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Accepted: 11/29/2015] [Indexed: 12/17/2022] Open
Abstract
Oxidative damage is a central feature of ulcerative colitis. Here, we tested whether the antioxidant Mesna, when administered alone or in combination with n-3 polyunsaturated fatty acids (n-3 PUFAs), affects the outcome of dextran sodium sulphate (DSS)-induced ulcerative colitis in rats. After the induction of colitis, DSS-treated rats were further treated orally (p.o), intraperitoneally (i.p) or intrarectally (i.r) for either 7 or 14 days with Mesna, n-3 PUFAs or both. Rats were euthanized at the end of each treatment period. Clinical disease activity index was recorded throughout the experiment. At necropsy colorectal gross lesions were scored. Colitis was scored histologically, and the expression of myeloperoxidase (MPO), caspase-3, inducible nitric oxide synthase (iNOS) and nuclear factor κB (NF-κΒ) in colonic tissue was assessed by immunohistochemistry. Mesna alone was sufficient to significantly reduce colorectal tissue damage when administered orally or intraperitoneally. Orally coadministered n-3 PUFAs enhanced this effect, resulting in the significant suppression of DSS colitis after 7 days, and a remarkable recovery of colorectal mucosa was evident after 14 days of treatment. The amelioration of colon pathology co-existed with a significant decrease in MPO expression, overexpression of iNOS and reduction of nuclear NF-κB p65 in inflammatory cells, and the suppression of apoptosis in colonic epithelial cells. The simultaneous administration of Mesna and n-3 PUFAs is particularly effective in ameliorating DSS colitis in rats, by reducing oxidative stress, inflammation and apoptosis, probably through a mechanism that involves the inhibition of NF-κB and overexpression of iNOS.
Collapse
Affiliation(s)
| | - Theofilos Poutahidis
- Laboratory of Pathology, Faculty of Health Sciences, School of Veterinary Medicine, Aristotle University, Thessaloniki, Greece
| | - Ioannis Taitzoglou
- Laboratory of Physiology, Faculty of Health Sciences, School of Veterinary Medicine, Aristotle University, Thessaloniki, Greece
| | - Isaak Kesisoglou
- 3rd Department of Surgery, AHEPA University Hospital, Faculty of Health Sciences, School of Medicine, Aristotle University, Thessaloniki, Greece
| | - Charalampos Lazaridis
- 4th Department of Surgery, Papanikolaou University Hospital, Faculty of Health Sciences, School of Medicine, Aristotle University, Thessaloniki, Greece
| | - Dimitrios Botsios
- 4th Department of Surgery, Papanikolaou University Hospital, Faculty of Health Sciences, School of Medicine, Aristotle University, Thessaloniki, Greece
| |
Collapse
|
14
|
Tousoulis D, Oikonomou E, Siasos G, Stefanadis C. Statins in heart failure--With preserved and reduced ejection fraction. An update. Pharmacol Ther 2013; 141:79-91. [PMID: 24022031 DOI: 10.1016/j.pharmthera.2013.09.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Accepted: 08/12/2013] [Indexed: 12/26/2022]
Abstract
HMG-CoA reductase inhibitors or statins beyond their lipid lowering properties and mevalonate inhibition exert also their actions through a multiplicity of mechanisms. In heart failure (HF) the inhibition of isoprenoid intermediates and small GTPases, which control cellular function such as cell shape, secretion and proliferation, is of clinical significance. Statins share also the peroxisome proliferator-activated receptor pathway and inactivate extracellular-signal-regulated kinase phosphorylation suppressing inflammatory cascade. By down-regulating Rho/Rho kinase signaling pathways, statins increase the stability of eNOS mRNA and induce activation of eNOS through phosphatidylinositol 3-kinase/Akt/eNOS pathway restoring endothelial function. Statins change also myocardial action potential plateau by modulation of Kv1.5 and Kv4.3 channel activity and inhibit sympathetic nerve activity suppressing arrhythmogenesis. Less documented evidence proposes also that statins have anti-hypertrophic effects - through p21ras/mitogen activated protein kinase pathway - which modulate synthesis of matrix metalloproteinases and procollagen 1 expression affecting interstitial fibrosis and diastolic dysfunction. Clinical studies have partly confirmed the experimental findings and despite current guidelines new evidence supports the notion that statins can be beneficial in some cases of HF. In subjects with diastolic HF, moderately impaired systolic function, low b-type natriuretic peptide levels, exacerbated inflammatory response and mild interstitial fibrosis evidence supports that statins can favorably affect the outcome. Under the lights of this evidence in this review article we discuss the current knowledge on the mechanisms of statins' actions and we link current experimental and clinical data to further understand the possible impact of statins' treatment on HF syndrome.
Collapse
Affiliation(s)
- Dimitris Tousoulis
- 1st Cardiology Department, University of Athens Medical School, "Hippokration" Hospital, Athens, Greece.
| | - Evangelos Oikonomou
- 1st Cardiology Department, University of Athens Medical School, "Hippokration" Hospital, Athens, Greece
| | - Gerasimos Siasos
- 1st Cardiology Department, University of Athens Medical School, "Hippokration" Hospital, Athens, Greece
| | - Christodoulos Stefanadis
- 1st Cardiology Department, University of Athens Medical School, "Hippokration" Hospital, Athens, Greece
| |
Collapse
|