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Annunziata C, Lama A, Pirozzi C, Cavaliere G, Trinchese G, Di Guida F, Nitrato Izzo A, Cimmino F, Paciello O, De Biase D, Murru E, Banni S, Calignano A, Mollica MP, Mattace Raso G, Meli R. Palmitoylethanolamide counteracts hepatic metabolic inflexibility modulating mitochondrial function and efficiency in diet-induced obese mice. FASEB J 2019; 34:350-364. [PMID: 31914699 DOI: 10.1096/fj.201901510rr] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [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: 06/18/2019] [Revised: 10/08/2019] [Accepted: 10/21/2019] [Indexed: 12/17/2022]
Abstract
Peroxisome proliferator-activated receptor (PPAR)-α activation controls hepatic lipid homeostasis, stimulating fatty acid oxidation, and adapting the metabolic response to lipid overload and storage. Here, we investigate the effect of palmitoylethanolamide (PEA), an endogenous PPAR-α ligand, in counteracting hepatic metabolic inflexibility and mitochondrial dysfunction induced by high-fat diet (HFD) in mice. Long-term PEA administration (30 mg/kg/die per os) in HFD mice limited hepatic lipid accumulation, increased energy expenditure, and markedly reduced insulin resistance. In isolated liver mitochondria, we have demonstrated PEA capability to modulate mitochondrial oxidative capacity and energy efficiency, leading to the reduction of intracellular lipid accumulation and oxidative stress. Moreover, we have evaluated the effect of PEA on mitochondrial bioenergetics of palmitate-challenged HepG2 cells, using Seahorse analyzer. In vitro data showed that PEA recovered mitochondrial dysfunction and reduced lipid accumulation in insulin-resistant HepG2 cells, increasing fatty acid oxidation. Mechanistic studies showed that PEA effect on lipid metabolism was limited by AMP-activated protein kinase (AMPK) inhibition, providing evidence for a pivotal role of AMPK in PEA-induced adaptive metabolic setting. All these findings identify PEA as a modulator of hepatic lipid and glucose homeostasis, limiting metabolic inflexibility induced by nutrient overload.
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Affiliation(s)
- Chiara Annunziata
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Adriano Lama
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Claudio Pirozzi
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Gina Cavaliere
- Department of Biology, University of Naples Federico II, Naples, Italy
| | | | | | | | - Fabiano Cimmino
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Orlando Paciello
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Naples, Italy
| | - Davide De Biase
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Naples, Italy
| | - Elisabetta Murru
- Department of Biomedical Sciences, University of Cagliari, Cittadella Universitaria di Monserrato, Cagliari, Italy
| | - Sebastiano Banni
- Department of Biomedical Sciences, University of Cagliari, Cittadella Universitaria di Monserrato, Cagliari, Italy
| | - Antonio Calignano
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | | | | | - Rosaria Meli
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
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Lama A, Annunziata C, Coretti L, Pirozzi C, Di Guida F, Nitrato Izzo A, Cristiano C, Mollica MP, Chiariotti L, Pelagalli A, Lembo F, Meli R, Mattace Raso G. N-(1-carbamoyl-2-phenylethyl) butyramide reduces antibiotic-induced intestinal injury, innate immune activation and modulates microbiota composition. Sci Rep 2019; 9:4832. [PMID: 30886232 PMCID: PMC6423286 DOI: 10.1038/s41598-019-41295-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 02/28/2019] [Indexed: 02/08/2023] Open
Abstract
The use/misuse of antibiotics leads to pathological features referring to antibiotic-induced intestinal injury (AIJ), a clinical issue that plays a prominent role in the development of severe digestive disturbances. AIJ is characterized by loss of intestinal architecture and function, dysbiosis and bacterial translocation into the liver, triggering hepatic inflammation. This study aimed at determining the beneficial effect of N-(1-carbamoyl-2-phenylethyl) butyramide (FBA), a butyrate releasing compound, in ceftriaxone-induced intestinal injury. To this purpose, mice receiving ceftriaxone (8 g∙kg−1/die, per os) for five days, were treated with FBA (212,5 mg∙kg−1/die, per os) for five or fifteen days. FBA modulated key players of innate immunity in antibiotic-injured gut tissues, reducing inflammatory process and improving the anti-inflammatory and resolving pattern. FBA also improved colonic architecture and intestinal integrity. Interestingly, we also observed a remodeling of gut microbiota composition related to an increase of metabolic pathways related to lactate and butyrate production. At mechanistic level, FBA induced histone acetylation and increased the expression of GPR43 and monocarboxylate transporter 1 in colon. Our data clearly demonstrated that FBA has multiple converging mechanisms in limiting intestinal and hepatic alterations to counteract AIJ.
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Affiliation(s)
- Adriano Lama
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131, Naples, Italy.,Task Force on Microbiome Studies, University of Naples "Federico II", Via D. Montesano 49, 80131, Naples, Italy
| | - Chiara Annunziata
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131, Naples, Italy
| | - Lorena Coretti
- Task Force on Microbiome Studies, University of Naples "Federico II", Via D. Montesano 49, 80131, Naples, Italy.,Institute for Experimental Endocrinology and Oncology, IEOS, Via S. Pansini 5, 80131, Naples, Italy
| | - Claudio Pirozzi
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131, Naples, Italy
| | - Francesca Di Guida
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131, Naples, Italy
| | - Allegra Nitrato Izzo
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131, Naples, Italy
| | - Claudia Cristiano
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131, Naples, Italy.,Task Force on Microbiome Studies, University of Naples "Federico II", Via D. Montesano 49, 80131, Naples, Italy
| | - Maria Pina Mollica
- Task Force on Microbiome Studies, University of Naples "Federico II", Via D. Montesano 49, 80131, Naples, Italy.,Department of Biology, University of Naples "Federico II", Cupa Nuova Cinthia 21, 80126, Naples, Italy
| | - Lorenzo Chiariotti
- Task Force on Microbiome Studies, University of Naples "Federico II", Via D. Montesano 49, 80131, Naples, Italy.,Institute for Experimental Endocrinology and Oncology, IEOS, Via S. Pansini 5, 80131, Naples, Italy.,Department of Molecular Medicine and Medical Biotechnology, University of Naples "Federico II", Via S. Pansini 5, 80131, Naples, Italy
| | - Alessandra Pelagalli
- Department of Advanced Biomedical Sciences, University of Naples "Federico II", Via S. Pansini 5, 80131, Naples, Italy.,Institute of Biostructure and Bioimaging, Consiglio Nazionale delle Ricerche CNR, Via S. Pansini 5, 80131, Naples, Italy
| | - Francesca Lembo
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131, Naples, Italy.,Task Force on Microbiome Studies, University of Naples "Federico II", Via D. Montesano 49, 80131, Naples, Italy
| | - Rosaria Meli
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131, Naples, Italy.
| | - Giuseppina Mattace Raso
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131, Naples, Italy.,Task Force on Microbiome Studies, University of Naples "Federico II", Via D. Montesano 49, 80131, Naples, Italy
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3
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Pirozzi C, Francisco V, Guida FD, Gómez R, Lago F, Pino J, Meli R, Gualillo O. Butyrate Modulates Inflammation in Chondrocytes via GPR43 Receptor. Cell Physiol Biochem 2018; 51:228-243. [PMID: 30448827 DOI: 10.1159/000495203] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [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: 03/16/2018] [Accepted: 11/08/2018] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND/AIMS Osteoarthritis (OA) is a joint degenerative biomechanical disorder involving immunity, metabolic alterations, inflammation, and cartilage degradation, where chondrocytes play a pivotal role. OA has not effective pharmacological treatments and new therapeutic targets are needed. Adipokines contribute to the low-grade systemic inflammation in OA. Here, we explored novel molecular mechanisms of sodium butyrate (BuNa) in modulating inflammation and chemotaxis in chondrocytes, demonstrating the direct involvement of its G protein-coupled receptor (GPR)-43. METHODS ATDC5 murine chondrocytes were stimulated with interleukin (IL)-1β, in the presence or not of BuNa, for 24 h. RT-PCR and Western blot analysis was performed to evaluate the expression of inflammatory mediators and structural proteins. RESULTS Butyrate reduced the expression of canonic pro-inflammatory mediators (Nos2, COX-2, IL-6), pro-inflammatory adipokines (lipocalin-2 and nesfatin-1) and adhesion molecule (VCAM-1 and ICAM-1) in IL-1β-stimulated chondrocytes, inhibiting several inflammatory signalling pathways (NFκB, MAPKinase, AMPK-α, PI3K/Akt). Butyrate also reduced metalloproteinase production and limited the loss of type II collagen in IL-1β-inflamed chondrocytes. The chemoattractant effect of butyrate, after different inflammatory challenges, was revealed by increased annexin (AnxA)1 levels and chemokines expression. The chemoattractant and anti-inflammatory activities of butyrate were completely blunted by GPR43 silencing using RNA interference. CONCLUSION Taken together, our data suggest the potential application of sodium butyrate as a novel candidate in a multi-target approach for the treatment of chondrocyte inflammation and cartilage degenerative process.
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Affiliation(s)
- Claudio Pirozzi
- SERGAS (Servizo Galego de Saude) and IDIS (Instituto de Investigación Sanitaria de Santiago), The NEIRID Lab (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Research Laboratory 9, Santiago University Clinical Hospital, Santiago de Compostela, .,Department of Pharmacy. University of Naples Federico II, Naples,
| | - Vera Francisco
- SERGAS (Servizo Galego de Saude) and IDIS (Instituto de Investigación Sanitaria de Santiago), The NEIRID Lab (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Research Laboratory 9, Santiago University Clinical Hospital, Santiago de Compostela, Spain
| | | | - Rodolfo Gómez
- The NEIRID Group. Musculoskeletal Pathology Division. SERGAS (Servizo Galego de Saude) and IDIS (Instituto de Investigación Sanitaria de Santiago), Research Laboratory 9, Santiago University Clinical Hospital, Santiago de Compostela, Spain
| | - Francisca Lago
- Molecular and Cellular Cardiology Laboratory. SERGAS (Servizo Galego de Saude) and IDIS (Instituto de Investigación Sanitaria de Santiago), Research Laboratory 7, Santiago University Clinical Hospital, Santiago de Compostela, Spain
| | - Jesus Pino
- SERGAS (Servizo Galego de Saude) and IDIS (Instituto de Investigación Sanitaria de Santiago), The NEIRID Lab (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Research Laboratory 9, Santiago University Clinical Hospital, Santiago de Compostela, Spain
| | - Rosaria Meli
- Department of Pharmacy. University of Naples Federico II, Naples, Italy
| | - Oreste Gualillo
- SERGAS (Servizo Galego de Saude) and IDIS (Instituto de Investigación Sanitaria de Santiago), The NEIRID Lab (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Research Laboratory 9, Santiago University Clinical Hospital, Santiago de Compostela, Spain
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Di Guida F, Pirozzi C, Magliocca S, Santoro A, Lama A, Russo R, Nieddu M, Burrai L, Boatto G, Mollica MP, Sodano F, Lazzarato L, Chegaev K, Meli R, Raso GM, Rimoli MG. Galactosylated Pro-Drug of Ursodeoxycholic Acid: Design, Synthesis, Characterization, and Pharmacological Effects in a Rat Model of Estrogen-Induced Cholestasis. Mol Pharm 2017; 15:21-30. [PMID: 29140706 DOI: 10.1021/acs.molpharmaceut.7b00626] [Citation(s) in RCA: 11] [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] [Indexed: 12/12/2022]
Abstract
Ursodeoxycholic acid (UDCA) is considered the first-choice therapy for cholestatic disorders. To enhance solubility and exploit specific transporters in liver, we synthesized a new galactosyl pro-drug of UDCA (UDCAgal). Ethinylestradiol (EE)-induced cholestasis was used to study and compare the effects of UDCAgal with UDCA on bile flow, hepatic canalicular efflux transporter expression, and inflammation. UDCAgal resulted quite stable both at pH 7.4 and 1.2 and regenerated the parent drug after incubation in human plasma. Its solubility, higher than UDCA, was pH- and temperature-independent. UDCAgal displayed a higher cell permeation compared to UDCA in liver HepG2 cells. Moreover, in cholestatic rats, UDCAgal showed a higher potency compared to UDCA in reducing serum biomarkers (AST, ALT, and ALP) and cytokines (TNF-α and IL-1β). The higher effect of UDCAgal on the increase in bile salt export pump and multidrug resistance-associated protein 2 transcription indicated an improved spillover of bile acids from the liver. UDCAgal showed a reduction in CCL2, as well as TNF-α, IL-1β, and cyclooxygeanse-2 mRNAs, indicating a reduction in hepatic neutrophil accumulation and inflammation. Moreover, UDCAgal, similarly to UDCA, heightens bile flow and modulates biliary acids secretion. These results indicate that UDCAgal has a potential in the treatment of cholestatic disease.
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Affiliation(s)
- Francesca Di Guida
- Department of Pharmacy, University of Naples Federico II , Naples 80138, Italy
| | - Claudio Pirozzi
- Department of Pharmacy, University of Naples Federico II , Naples 80138, Italy
| | - Salvatore Magliocca
- Department of Chemistry and Pharmacy, University of Sassari , Sassari 07100, Italy
| | - Anna Santoro
- Department of Pharmacy, University of Naples Federico II , Naples 80138, Italy
| | - Adriano Lama
- Department of Pharmacy, University of Naples Federico II , Naples 80138, Italy
| | - Roberto Russo
- Department of Pharmacy, University of Naples Federico II , Naples 80138, Italy
| | - Maria Nieddu
- Department of Chemistry and Pharmacy, University of Sassari , Sassari 07100, Italy
| | - Lucia Burrai
- Department of Chemistry and Pharmacy, University of Sassari , Sassari 07100, Italy
| | - Gianpiero Boatto
- Department of Chemistry and Pharmacy, University of Sassari , Sassari 07100, Italy
| | - Maria Pina Mollica
- Department of Biology, University of Naples Federico II , Naples 80138, Italy
| | - Federica Sodano
- Department of Drug Science and Technology, University of Turin , Turin 10124, Italy
| | - Loretta Lazzarato
- Department of Drug Science and Technology, University of Turin , Turin 10124, Italy
| | - Konstantin Chegaev
- Department of Drug Science and Technology, University of Turin , Turin 10124, Italy
| | - Rosaria Meli
- Department of Pharmacy, University of Naples Federico II , Naples 80138, Italy
| | | | - Maria Grazia Rimoli
- Department of Pharmacy, University of Naples Federico II , Naples 80138, Italy
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5
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Mollica MP, Mattace Raso G, Cavaliere G, Trinchese G, De Filippo C, Aceto S, Prisco M, Pirozzi C, Di Guida F, Lama A, Crispino M, Tronino D, Di Vaio P, Berni Canani R, Calignano A, Meli R. Butyrate Regulates Liver Mitochondrial Function, Efficiency, and Dynamics in Insulin-Resistant Obese Mice. Diabetes 2017; 66:1405-1418. [PMID: 28223285 DOI: 10.2337/db16-0924] [Citation(s) in RCA: 196] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 02/14/2017] [Indexed: 12/15/2022]
Abstract
Fatty liver, oxidative stress, and mitochondrial dysfunction are key pathophysiological features of insulin resistance and obesity. Butyrate, produced by fermentation in the large intestine by gut microbiota, and its synthetic derivative, the N-(1-carbamoyl-2-phenyl-ethyl) butyramide, FBA, have been demonstrated to be protective against insulin resistance and fatty liver. Here, hepatic mitochondria were identified as the main target of the beneficial effect of both butyrate-based compounds in reverting insulin resistance and fat accumulation in diet-induced obese mice. In particular, butyrate and FBA improved respiratory capacity and fatty acid oxidation, activated the AMPK-acetyl-CoA carboxylase pathway, and promoted inefficient metabolism, as shown by the increase in proton leak. Both treatments consistently increased utilization of substrates, especially fatty acids, leading to the reduction of intracellular lipid accumulation and oxidative stress. Finally, the shift of the mitochondrial dynamic toward fusion by butyrate and FBA resulted in the improvement not only of mitochondrial cell energy metabolism but also of glucose homeostasis. In conclusion, butyrate and its more palatable synthetic derivative, FBA, modulating mitochondrial function, efficiency, and dynamics, can be considered a new therapeutic strategy to counteract obesity and insulin resistance.
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Affiliation(s)
| | | | - Gina Cavaliere
- Department of Biology, University of Naples Federico II, Naples, Italy
| | | | - Chiara De Filippo
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Serena Aceto
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Marina Prisco
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Claudio Pirozzi
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | | | - Adriano Lama
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Marianna Crispino
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Diana Tronino
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Paola Di Vaio
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Roberto Berni Canani
- Department of Translational Medical Science, University of Naples Federico II, Naples, Italy
- European Laboratory for Investigation of Food Induced Diseases, University of Naples Federico II, Naples, Italy
- CEINGE Advanced Biotechnology, University of Naples Federico II, Naples, Italy
| | - Antonio Calignano
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Rosaria Meli
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
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Lama A, Pirozzi C, Mollica MP, Trinchese G, Di Guida F, Cavaliere G, Calignano A, Mattace Raso G, Berni Canani R, Meli R. Polyphenol-rich virgin olive oil reduces insulin resistance and liver inflammation and improves mitochondrial dysfunction in high-fat diet fed rats. Mol Nutr Food Res 2016; 61. [PMID: 27794174 DOI: 10.1002/mnfr.201600418] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [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: 05/21/2016] [Revised: 09/21/2016] [Accepted: 09/25/2016] [Indexed: 12/19/2022]
Abstract
SCOPE Virgin olive oil is an essential component of the Mediterranean diet. Its antioxidant and anti-inflammatory properties are mainly linked to phenolic contents. This study aims to evaluate the beneficial effects of a polyphenol-rich virgin olive oil (HPCOO) or olive oil without polyphenols (WPOO) in rats fed high-fat diet (HFD). METHODS AND RESULTS Male Sprague-Dawley rats were divided into four groups based on the different types of diet: (I) standard diet (STD); (II) HFD; (III) HFD containing WPOO, and (IV) HFD containing HPCOO. HPCOO and WPOO induced a significant improvement of HFD-induced impaired glucose homeostasis (by hyperglycemia, altered oral glucose tolerance, and HOMA-IR) and inflammatory status modulating pro- and anti-inflammatory cytokines (TNF-α, IL-1, and IL-10) and adipokines. Moreover, HPCOO and less extensively WPOO, limited HFD-induced liver oxidative and nitrosative stress and increased hepatic fatty acid oxidation. To study mitochondrial performance, oxidative capacity and energy efficiency were also evaluated in isolated liver mitochondria. HPCOO, but not WPOO, reduced H2 O2 release and aconitase activity by decreasing degree of coupling, which plays a major role in the control of mitochondrial reactive oxygen species emission. CONCLUSION HPCOO limits HFD-induced insulin resistance, inflammation, and hepatic oxidative stress, preventing nonalcoholic fatty liver disease progression.
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Affiliation(s)
- Adriano Lama
- Department of Pharmacy, University of Naples "Federico II", Naples, Italy
| | - Claudio Pirozzi
- Department of Pharmacy, University of Naples "Federico II", Naples, Italy
| | - Maria Pia Mollica
- Department of Biology, University of Naples "Federico II", Naples, Italy
| | - Giovanna Trinchese
- Department of Biology, University of Naples "Federico II", Naples, Italy
| | - Francesca Di Guida
- Department of Pharmacy, University of Naples "Federico II", Naples, Italy
| | - Gina Cavaliere
- Department of Biology, University of Naples "Federico II", Naples, Italy
| | - Antonio Calignano
- Department of Pharmacy, University of Naples "Federico II", Naples, Italy
| | | | - Roberto Berni Canani
- Department of Translational Medical Science, University of Naples "Federico II", Naples, Italy.,European Laboratory for the Investigation of Food Induced Diseases, University of Naples "Federico II", Naples, Italy.,CEINGE Advanced Biotechnologies, University of Naples "Federico II", Naples, Italy
| | - Rosaria Meli
- Department of Pharmacy, University of Naples "Federico II", Naples, Italy
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7
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Pirozzi C, Lama A, Simeoli R, Paciello O, Pagano TB, Mollica MP, Di Guida F, Russo R, Magliocca S, Canani RB, Raso GM, Calignano A, Meli R. Hydroxytyrosol prevents metabolic impairment reducing hepatic inflammation and restoring duodenal integrity in a rat model of NAFLD. J Nutr Biochem 2016; 30:108-15. [PMID: 27012627 DOI: 10.1016/j.jnutbio.2015.12.004] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [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: 07/28/2015] [Revised: 10/26/2015] [Accepted: 12/03/2015] [Indexed: 12/15/2022]
Abstract
The potential mechanisms of action of polyphenols in nonalcoholic fatty liver disease (NAFLD) are overlooked. Here, we evaluate the beneficial therapeutic effects of hydroxytyrosol (HT), the major metabolite of the oleuropein, in a nutritional model of insulin resistance (IR) and NAFLD by high-fat diet. Young male rats were divided into three groups receiving (1) standard diet (STD; 10.5% fat), (2) high-fat diet (HFD; 58.0% fat) and (3) HFD+HT (10 mg/kg/day by gavage). After 5 weeks, the oral glucose tolerance test was performed, and at 6th week, blood sample and tissues (liver and duodenum) were collected for following determinations. The HT-treated rats showed a marked reduction in serum AST, ALT and cholesterol and improved glucose tolerance and insulin sensitivity, reducing homeostasis model assessment index. HT significantly corrected the metabolic impairment induced by HFD, increasing hepatic peroxisome proliferator activated receptor PPAR-α and its downstream-regulated gene fibroblast growth factor 21, the phosphorylation of acetyl-CoA carboxylase and the mRNA carnitine palmitoyltransferase 1a. HT also reduced liver inflammation and nitrosative/oxidative stress decreasing the nitrosylation of proteins, reactive oxygen species production and lipid peroxidation. Moreover, HT restored intestinal barrier integrity and functions (fluorescein isothiocyanate-dextran permeability and mRNA zona occludens ZO-1). Our data demonstrate the beneficial effect of HT in the prevention of early inflammatory events responsible for the onset of IR and steatosis, reducing hepatic inflammation and nitrosative/oxidative stress and restoring glucose homeostasis and intestinal barrier integrity.
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Affiliation(s)
- Claudio Pirozzi
- Department of Pharmacy, University of Naples "Federico II", 80131 Naples, Italy
| | - Adriano Lama
- Department of Pharmacy, University of Naples "Federico II", 80131 Naples, Italy
| | - Raffaele Simeoli
- Department of Pharmacy, University of Naples "Federico II", 80131 Naples, Italy
| | - Orlando Paciello
- Department of Veterinary Medicine and Animal Production, University of Naples "Federico II", 80131 Naples, Italy
| | - Teresa Bruna Pagano
- Department of Veterinary Medicine and Animal Production, University of Naples "Federico II", 80131 Naples, Italy
| | - Maria Pina Mollica
- Department of Biology, University of Naples "Federico II", 80131 Naples, Italy
| | - Francesca Di Guida
- Department of Pharmacy, University of Naples "Federico II", 80131 Naples, Italy
| | - Roberto Russo
- Department of Pharmacy, University of Naples "Federico II", 80131 Naples, Italy
| | - Salvatore Magliocca
- Department of Pharmacy, University of Naples "Federico II", 80131 Naples, Italy
| | - Roberto Berni Canani
- Department of Translational Medical Science and European Laboratory for the Investigation of Food Induced Diseases and CEINGE Advanced Biotechnologies, University of Naples "Federico II", 80131 Naples, Italy
| | | | - Antonio Calignano
- Department of Pharmacy, University of Naples "Federico II", 80131 Naples, Italy
| | - Rosaria Meli
- Department of Pharmacy, University of Naples "Federico II", 80131 Naples, Italy.
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8
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Santoro A, Ferrante MC, Di Guida F, Pirozzi C, Lama A, Simeoli R, Clausi MT, Monnolo A, Mollica MP, Mattace Raso G, Meli R. Polychlorinated Biphenyls (PCB 101, 153, and 180) Impair Murine Macrophage Responsiveness to Lipopolysaccharide: Involvement of NF-κB Pathway. Toxicol Sci 2015; 147:255-69. [PMID: 26141388 PMCID: PMC7107302 DOI: 10.1093/toxsci/kfv127] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [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] [Indexed: 01/22/2023] Open
Abstract
Non-dioxin-like (NDL) polychlorinated biphenyls (PCBs) are persistent organic pollutants, associated with a range of adverse health effects, including interference with the immune system. In this study, we investigate the capability of NDL-PCBs 101, 153, and 180, 3 of the 6 NDL-PCBs defined as indicators, to impair the immune response in lipopolysaccharide (LPS)-activated J774A.1 and primary murine macrophages. Our results clearly demonstrate that the exposure of J774A.1 and primary macrophages to NDL-PCB 153 or 180 or all NDL-PCBs mixtures causes a significant reduction in LPS-induced cytokine/chemokine synthesis, such as tumor necrosis factor-α and interleukin-6, together with monocyte chemoattractant protein-1, involved in cell recruitment. Moreover, PCBs were found to suppress LPS-stimulated NO production, and to reduce cyclooxygenase-2 and inducible nitric oxide synthase expression in J774A.1 and primary macrophages. At mechanistic level, PCBs significantly counteract the LPS-driven toll-like receptor (TLR) 4 and CD14 upregulation, therefore inhibiting downstream nuclear factor-κB (NF-κB) activation in J774A.1. Furthermore, PCBs determine a significant loss of macrophage endocytic capacity, a prerequisite for efficient antigen presentation. Taken together, these data indicate that NDL-PCBs reduce macrophage responsiveness, particularly when they are combined at concentrations per se inactive, impairing the capability to orchestrate a proper immune response to an infectious stimulus, disrupting TLR4/NF-κB pathway.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Maria Pina Mollica
- Department of Biology, University of Naples Federico II, 80131 Naples, Italy
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9
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Simeoli R, Mattace Raso G, Lama A, Pirozzi C, Santoro A, Di Guida F, Sanges M, Aksoy E, Calignano A, D'Arienzo A, Meli R. Preventive and therapeutic effects of Lactobacillus paracasei B21060-based synbiotic treatment on gut inflammation and barrier integrity in colitic mice. J Nutr 2015; 145:1202-10. [PMID: 25926411 DOI: 10.3945/jn.114.205989] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [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: 10/28/2014] [Accepted: 03/23/2015] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Although gut microbiota perturbation is recognized as a main contributing factor to the pathogenesis of inflammatory bowel disease, synbiotic therapies, as prevention or treatment, have remained overlooked. OBJECTIVE To verify whether Lactobacillus paracasei B21060-based synbiotic therapy could prevent or repair colon damage in a mouse model of colitis, we performed treatments before and after colitis induction. METHODS The experimental study lasted 19 d. Experimental colitis was induced in BALB/c mice by giving them dextran sodium sulfate (DSS, 2.5%) in drinking water (days 7-12) followed by DSS-free water (days 13-19) (DSS group). L. paracasei B21060 (2.5 × 10(7) bacteria/10 g body weight) was orally administered 7 d before DSS [synbiotic as preventive treatment (P-SYN) group] or 2 d after DSS [synbiotic as therapeutic treatment (T-SYN) group] until day 19. Another group was not treated with DSS or synbiotic and was given tap water (control group), for a total of 4 groups. RESULTS Compared with the DSS group, both synbiotic-treated groups had significantly less pronounced weight loss and colon damage. Consistently, mRNA levels of chemokine (C-C motif) ligand 5 in the colon were reduced in both P-SYN and T-SYN mice compared with the DSS group (51%, P < 0.05 and 72%, P < 0.001, respectively). In the P-SYN and T-SYN groups, neutrophil elastase transcription was also reduced (51%, P < 0.01 and 59%, P < 0.001, respectively). Accordingly, oxidative/nitrosative stress was lower in P-SYN and T-SYN mice than in the DSS group. In P-SYN and T-SYN mice, colonic gene expression of tumor necrosis factor (47%, P < 0.01 and 61%, P < 0.001, respectively) and prostaglandin-endoperoxide synthase 2 (45%, P < 0.01 and 35%, P < 0.05, respectively) was lower, whereas interleukin 10 mRNA was doubled compared with the DSS group (both P < 0.5). Remarkably, epithelial barrier integrity (zonulin and occludin) and gut protection (β-defensin and mucin expression) were completely restored in P-SYN and T-SYN mice. CONCLUSIONS Our data highlight the beneficial effects of this synbiotic formulation in acutely colitic mice, suggesting that it may have therapeutic and possibly preventive efficacy in human colitis.
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Affiliation(s)
- Raffaele Simeoli
- Department of Pharmacy and Centre for Biochemical Pharmacology, William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | | | | | | | | | | | - Marco Sanges
- Department of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy; and
| | - Ezra Aksoy
- Centre for Biochemical Pharmacology, William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | | | - Agesilao D'Arienzo
- Department of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy; and
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Ferrante MC, Amero P, Santoro A, Monnolo A, Simeoli R, Di Guida F, Mattace Raso G, Meli R. Polychlorinated biphenyls (PCB 101, PCB 153 and PCB 180) alter leptin signaling and lipid metabolism in differentiated 3T3-L1 adipocytes. Toxicol Appl Pharmacol 2014; 279:401-408. [PMID: 24978599 DOI: 10.1016/j.taap.2014.06.016] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [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: 04/01/2014] [Revised: 06/11/2014] [Accepted: 06/18/2014] [Indexed: 11/28/2022]
Abstract
Non-dioxin-like polychlorinated biphenyls (NDL-PCBs) are highly lipophilic environmental contaminants that accumulate in lipid-rich tissues, such as adipose tissue. Here, we reported the effects induced by PCBs 101, 153 and 180, three of the six NDL-PCBs defined as indicators, on mature 3T3-L1 adipocytes. We observed an increase in lipid content, in leptin gene expression and a reduction of leptin receptor expression and signaling, when cells were exposed to PCBs, alone or in combination. These modifications were consistent with the occurrence of "leptin-resistance" in adipose tissue, a typical metabolic alteration related to obesity. Therefore, we investigated how PCBs affect the expression of pivotal proteins involved in the signaling of leptin receptor. We evaluated the PCB effect on the intracellular pathway JAK/STAT, determining the phosphorylation of STAT3, a downstream activator of the transcription of leptin gene targets, and the expression of SOCS3 and PTP1B, two important regulators of leptin resistance. In particular, PCBs 153 and 180 or all PCB combinations induced a significant reduction in pSTAT3/STAT3 ratio and an increase in PTP1B and SOCS3, evidencing an additive effect. The impairment of leptin signaling was associated with the reduction of AMPK/ACC pathway activation, leading to the increase in lipid content. These pollutants were also able to increase the transcription of inflammatory cytokines (IL-6 and TNFα). It is worthy to note that the PCB concentrations used are comparable to levels detectable in human adipose tissue. Our data strongly support the hypothesis that NDL-PCBs may interfere with the lipid metabolism contributing to the development of obesity and related diseases.
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Affiliation(s)
- Maria C Ferrante
- Department of Veterinary Medicine and Animal Productions, Federico II University of Naples, Via Delpino 1, 80137 Naples, Italy
| | - Paola Amero
- Department of Pharmacy, Federico II University of Naples, Via Montesano 49, 80131 Naples, Italy
| | - Anna Santoro
- Department of Pharmacy, Federico II University of Naples, Via Montesano 49, 80131 Naples, Italy
| | - Anna Monnolo
- Department of Veterinary Medicine and Animal Productions, Federico II University of Naples, Via Delpino 1, 80137 Naples, Italy
| | - Raffaele Simeoli
- Department of Pharmacy, Federico II University of Naples, Via Montesano 49, 80131 Naples, Italy
| | - Francesca Di Guida
- Department of Pharmacy, Federico II University of Naples, Via Montesano 49, 80131 Naples, Italy
| | - Giuseppina Mattace Raso
- Department of Pharmacy, Federico II University of Naples, Via Montesano 49, 80131 Naples, Italy.
| | - Rosaria Meli
- Department of Pharmacy, Federico II University of Naples, Via Montesano 49, 80131 Naples, Italy.
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