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Lanzillotta D, Iaccino E, Artese A, Mimmi S, D'Agostino S, Romeo I, Cantafio P, Dattilo V, Costa G, Brescia C, Gaudio E, Alcaro S, Trapasso F. Abstract B122: The CD98hc oncoprotein as a target of new anticancer therapy. Mol Cancer Ther 2019. [DOI: 10.1158/1535-7163.targ-19-b122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Among the proteins putatively interacting with PTPRJ, a tyrosine phosphatase with tumor suppressor activity, we focused on the oncoprotein CD98hc as a very interesting candidate for the development of innovative targeted drugs. In fact, CD98hc, representing the heavy chain of a transmembrane aminoacid transporter, is overexpressed in several human cancers. Furthermore, CD98hc higher expression is associated with poor prognosis in lung cancer patients. CD98hc is linked to light chains (LATs, xCT) by disulfide bridge, polar and hydrophobic interactions. The light chain confers substrate specificity, and ERK, AKT, FAK and mTOR pathways are involved in CD98hc-LATs/xCT downstream signals. Moreover, CD98hc is a coreceptor of b-integrins and it is involved in cell proliferation, migration and invasion. We identified two peptides and 15 small molecules (putatively targeting the disulfide bridge) as candidate CD98hc inhibitors by phage display and in silico screenings, respectively, and validated in vitro the binding between peptides and transmembrane fraction of CD98hc by cytofluorimetric assay. Then, we tested the capability of both types of compounds to affect cell viability and proliferation through MTT and CFSE assays, respectively. We observed that the targeting of CD98hc through both peptides and small molecules reduced cell proliferation in A549 human lung cancer cells, strongly encouraging a deeper characterization of these candidate anticancer molecules. Indeed, our next goals will be the assessment of biochemical activity of CD98hc following to its inhibition, as well as the evaluation of compounds toxicity, both in vitro and in vivo. The final aim is to identify lead compounds inhibiting CD98hc, in order to develop novel molecules to be translated in the clinical setting and to be used as monotherapy and/or in a combinatorial approaches for the treatment of cancer patients.
Citation Format: Delia Lanzillotta, Enrico Iaccino, Anna Artese, Selena Mimmi, Sabrina D'Agostino, Isabella Romeo, Patrizia Cantafio, Vincenzo Dattilo, Giosuè Costa, Carolina Brescia, Eugenio Gaudio, Stefano Alcaro, Francesco Trapasso. The CD98hc oncoprotein as a target of new anticancer therapy [abstract]. In: Proceedings of the AACR-NCI-EORTC International Conference on Molecular Targets and Cancer Therapeutics; 2019 Oct 26-30; Boston, MA. Philadelphia (PA): AACR; Mol Cancer Ther 2019;18(12 Suppl):Abstract nr B122. doi:10.1158/1535-7163.TARG-19-B122
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Affiliation(s)
| | | | - Anna Artese
- 1University Magna Graecia of Catanzaro, Catanzaro
| | - Selena Mimmi
- 1University Magna Graecia of Catanzaro, Catanzaro
| | | | | | | | | | - Giosuè Costa
- 1University Magna Graecia of Catanzaro, Catanzaro
| | | | - Eugenio Gaudio
- 2Lymphoma aIOR Institute of Oncology Research, Bellinzona
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Vella V, Nicolosi ML, Cantafio P, Massimino M, Lappano R, Vigneri P, Ciuni R, Gangemi P, Morrione A, Malaguarnera R, Belfiore A. DDR1 regulates thyroid cancer cell differentiation via IGF-2/IR-A autocrine signaling loop. Endocr Relat Cancer 2019; 26:197-214. [PMID: 30121624 DOI: 10.1530/erc-18-0310] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 08/16/2018] [Indexed: 12/31/2022]
Abstract
Patients with thyroid cancers refractory to radioiodine (RAI) treatment show a limited response to various therapeutic options and a low survival rate. The recent use of multikinase inhibitors has also met limited success. An alternative approach relies on drugs that induce cell differentiation, as the ensuing increased expression of the cotransporter for sodium and iodine (NIS) may partially restore sensitivity to radioiodine. The inhibition of the ERK1/2 pathway has shown some efficacy in this context. Aggressive thyroid tumors overexpress the isoform-A of the insulin receptor (IR-A) and its ligand IGF-2; this IGF-2/IR-A loop is associated with de-differentiation and stem-like phenotype, resembling RAI-refractory tumors. Importantly, IR-A has been shown to be positively modulated by the non-integrin collagen receptor DDR1 in human breast cancer. Using undifferentiated human thyroid cancer cells, we now evaluated the effects of DDR1 on IGF-2/IR-A loop and on markers of cell differentiation and stemness. DDR1 silencing or downregulation caused significant reduction of IR-A and IGF-2 expression, and concomitant increased levels of differentiation markers (NIS, Tg, TSH, TPO). Conversely, markers of epithelial-to-mesenchymal transition (Vimentin, Snail-2, Zeb1, Zeb2 and N-Cadherin) and stemness (OCT-4, SOX-2, ABCG2 and Nanog) decreased. These effects were collagen independent. In contrast, overexpression of either DDR1 or its kinase-inactive variant K618A DDR1-induced changes suggestive of less differentiated and stem-like phenotype. Collagen stimulation was uneffective. In conclusion, in poorly differentiated thyroid cancer, DDR1 silencing or downregulation blocks the IGF-2/IR-A autocrine loop and induces cellular differentiation. These results may open novel therapeutic approaches for thyroid cancer.
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Affiliation(s)
- Veronica Vella
- School of Human and Social Sciences, 'Kore' University of Enna, Enna, Italy
- Endocrinology, Department of Clinical and Experimental Medicine, University of Catania, Garibaldi-Nesima Hospital, Catania, Italy
| | - Maria Luisa Nicolosi
- Endocrinology, Department of Clinical and Experimental Medicine, University of Catania, Garibaldi-Nesima Hospital, Catania, Italy
| | - Patrizia Cantafio
- Endocrinology, Department of Health Sciences, University Magna Graecia of Catanzaro, Catanzaro, Italy
| | - Michele Massimino
- Center of Experimental Oncology and Hematology, AOU Policlinico Vittorio Emanuele, Catania, Italy
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Rosamaria Lappano
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, Italy
| | - Paolo Vigneri
- Center of Experimental Oncology and Hematology, AOU Policlinico Vittorio Emanuele, Catania, Italy
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Roberto Ciuni
- Unit of Thyroid and Neck Surgery, Policlinico Vittorio Emanuele, University of Catania, Catania, Italy
| | - Pietro Gangemi
- Unit of Pathology, Policlinico Vittorio Emanuele, University of Catania, Catania, Italy
| | - Andrea Morrione
- Department of Urology and Biology of Prostate Cancer Program, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Roberta Malaguarnera
- Endocrinology, Department of Health Sciences, University Magna Graecia of Catanzaro, Catanzaro, Italy
| | - Antonino Belfiore
- Endocrinology, Department of Clinical and Experimental Medicine, University of Catania, Garibaldi-Nesima Hospital, Catania, Italy
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Quintieri AM, Filice E, Amelio D, Pasqua T, Lupi FR, Scavello F, Cantafio P, Rocca C, Lauria A, Penna C, De Cindio B, Cerra MC, Angelone T. The innovative "Bio-Oil Spread" prevents metabolic disorders and mediates preconditioning-like cardioprotection in rats. Nutr Metab Cardiovasc Dis 2016; 26:603-613. [PMID: 27113292 DOI: 10.1016/j.numecd.2016.02.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 01/14/2016] [Accepted: 02/02/2016] [Indexed: 01/04/2023]
Abstract
BACKGROUND AND AIMS Obesity is often associated with an increased cardiovascular risk. The food industry and the associated research activities focus on formulating products that are a perfect mix between an adequate fat content and health. We evaluated whether a diet enriched with Bio-Oil Spread (SD), an olive oil-based innovative food, is cardioprotective in the presence of high-fat diet (HFD)-dependent obesity. METHODS AND RESULTS Rats were fed for 16 weeks with normolipidic diet (ND; fat: 6.2%), HFD (fat: 42%), and ND enriched with SD (6.2% of fat + 35.8% of SD). Metabolic and anthropometric parameters were measured. Heart and liver structures were analyzed by histochemical examination. Ischemic susceptibility was evaluated on isolated and Langendorff-perfused cardiac preparations. Signaling was assessed by Western blotting. Compared to ND rats, HFD rats showed increased body weight and abdominal obesity, dyslipidemia, and impaired glucose tolerance. Morphological analyses showed that HFD is associated with heart and liver modifications (hypertrophy and steatosis, respectively), lesser evident in the SD group, together with metabolic and anthropometric alterations. In particular, IGF-1R immunodetection revealed a reduction of hypertrophy in SD heart sections. Notably, SD diet significantly reduced myocardial susceptibility against ischemia/reperfusion (I/R) with respect to HFD through the activation of survival signals (Akt, ERK1/2, and Bcl2). Systolic and diastolic performance was preserved in the SD group. CONCLUSIONS We suggest that SD may contribute to the prevention of metabolic disorders and cardiovascular alterations typical of severe obesity induced by an HFD, including the increased ischemic susceptibility of the myocardium. Our results pave the way to evaluate the introduction of SD in human alimentary guidelines as a strategy to reduce saturated fat intake.
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MESH Headings
- Abdominal Fat/metabolism
- Abdominal Fat/physiopathology
- Adiposity
- Animal Feed
- Animals
- Apoptosis
- Biomarkers/blood
- Blood Glucose/metabolism
- Diet, High-Fat
- Dietary Supplements
- Disease Models, Animal
- Dyslipidemias/blood
- Dyslipidemias/etiology
- Dyslipidemias/prevention & control
- Extracellular Signal-Regulated MAP Kinases/metabolism
- Glucose Intolerance/blood
- Glucose Intolerance/etiology
- Glucose Intolerance/prevention & control
- Hypertrophy, Left Ventricular/etiology
- Hypertrophy, Left Ventricular/pathology
- Hypertrophy, Left Ventricular/physiopathology
- Hypertrophy, Left Ventricular/prevention & control
- Isolated Heart Preparation
- Lipids/blood
- Liver/metabolism
- Liver/pathology
- Metabolic Syndrome/blood
- Metabolic Syndrome/etiology
- Metabolic Syndrome/physiopathology
- Metabolic Syndrome/prevention & control
- Myocardial Infarction/blood
- Myocardial Infarction/pathology
- Myocardial Infarction/physiopathology
- Myocardial Infarction/prevention & control
- Myocardial Reperfusion Injury/blood
- Myocardial Reperfusion Injury/pathology
- Myocardial Reperfusion Injury/physiopathology
- Myocardial Reperfusion Injury/prevention & control
- Myocardium/metabolism
- Myocardium/pathology
- Non-alcoholic Fatty Liver Disease/blood
- Non-alcoholic Fatty Liver Disease/etiology
- Non-alcoholic Fatty Liver Disease/pathology
- Non-alcoholic Fatty Liver Disease/prevention & control
- Obesity, Abdominal/blood
- Obesity, Abdominal/etiology
- Obesity, Abdominal/physiopathology
- Obesity, Abdominal/prevention & control
- Olive Oil/administration & dosage
- Proto-Oncogene Proteins c-akt/metabolism
- Proto-Oncogene Proteins c-bcl-2/metabolism
- Rats, Sprague-Dawley
- Receptor, IGF Type 1/metabolism
- Signal Transduction
- Ventricular Function, Left
- Ventricular Remodeling
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Affiliation(s)
- A M Quintieri
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Arcavacata di Rende (CS), Italy
| | - E Filice
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Arcavacata di Rende (CS), Italy
| | - D Amelio
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Arcavacata di Rende (CS), Italy
| | - T Pasqua
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Arcavacata di Rende (CS), Italy
| | - F R Lupi
- Department of Information, Modeling, Electronics and System Engineering, University of Calabria, Rende, Italy
| | - F Scavello
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Arcavacata di Rende (CS), Italy
| | - P Cantafio
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Arcavacata di Rende (CS), Italy
| | - C Rocca
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Arcavacata di Rende (CS), Italy
| | - A Lauria
- ASL San Marco Argentano (CS), Veterinary Medicine Section, Italy
| | - C Penna
- Department of Biological and Clinical Sciences, San Luigi Gonzaga Hospital, University of Turin, Turin, Italy
| | - B De Cindio
- Department of Information, Modeling, Electronics and System Engineering, University of Calabria, Rende, Italy
| | - M C Cerra
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Arcavacata di Rende (CS), Italy; National Institute of Cardiovascular Research, Bologna, Italy.
| | - T Angelone
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Arcavacata di Rende (CS), Italy; National Institute of Cardiovascular Research, Bologna, Italy.
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Grande F, Parisi OI, Mordocco RA, Rocca C, Puoci F, Scrivano L, Quintieri AM, Cantafio P, Ferla S, Brancale A, Saturnino C, Cerra MC, Sinicropi MS, Angelone T. Quercetin derivatives as novel antihypertensive agents: Synthesis and physiological characterization. Eur J Pharm Sci 2015; 82:161-70. [PMID: 26631584 DOI: 10.1016/j.ejps.2015.11.021] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [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: 07/29/2015] [Revised: 11/06/2015] [Accepted: 11/25/2015] [Indexed: 01/27/2023]
Abstract
The antihypertensive flavonol quercetin (Q1) is endowed with a cardioprotective effect against myocardial ischemic damage. Q1 inhibits angiotensin converting enzyme activity, improves vascular relaxation, and decreases oxidative stress and gene expression. However, the clinical application of this flavonol is limited by its poor bioavailability and low stability in aqueous medium. In the aim to overcome these drawbacks and preserve the cardioprotective effects of quercetin, the present study reports on the preparation of five different Q1 analogs, in which all OH groups were replaced by hydrophobic functional moieties. Q1 derivatives have been synthesized by optimizing previously reported procedures and analyzed by spectroscopic analysis. The cardiovascular properties of the obtained compounds were also investigated in order to evaluate whether chemical modification affects their biological efficacy. The interaction with β-adrenergic receptors was evaluated by molecular docking and the cardiovascular efficacy was investigated on the ex vivo Langendorff perfused rat heart. Furthermore, the bioavailability and the antihypertensive properties of the most active derivative were evaluated by in vitro studies and in vivo administration (1month) on spontaneously hypertensive rats (SHRs), respectively. Among all studied Q1 derivatives, only the ethyl derivative reduced left ventricular pressure (at 10(-8)M÷10(-6)M doses) and improved relaxation and coronary dilation. NOSs inhibition by L-NAME abolished inotropism, lusitropism and coronary effects. Chronic administration of high doses of this compound on SHR reduced systolic and diastolic pressure. Differently, the acetyl derivative induced negative inotropism and lusitropism (at 10(-10)M and 10(-8)÷10(-6)M doses), without affecting coronary pressure. Accordingly, docking studies suggested that these compounds bind both β1/β2-adrenergic receptors. Taking into consideration all the obtained results, the replacement of OH with ethyl groups seems to improve Q1 bioavailability and stability; therefore, the ethyl derivative could represent a good candidate for clinical use in hypertension.
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Affiliation(s)
- Fedora Grande
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, CS, Italy
| | - Ortensia I Parisi
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, CS, Italy; Department of Informatics, Modeling, Electronics and Systems Engineering, University of Calabria, 87036 Arcavacata di Rende, CS, Italy
| | - Roberta A Mordocco
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, CS, Italy
| | - Carmine Rocca
- Department of Biology, Ecology and E.S., University of Calabria, 87036 Arcavacata di Rende, CS, Italy
| | - Francesco Puoci
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, CS, Italy.
| | - Luca Scrivano
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, CS, Italy
| | - Anna M Quintieri
- Department of Biology, Ecology and E.S., University of Calabria, 87036 Arcavacata di Rende, CS, Italy
| | - Patrizia Cantafio
- Department of Biology, Ecology and E.S., University of Calabria, 87036 Arcavacata di Rende, CS, Italy
| | - Salvatore Ferla
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Wales, UK
| | - Andrea Brancale
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Wales, UK
| | - Carmela Saturnino
- Department of Pharmaceutical and Biomedical Sciences, University of Salerno, 84084 Fisciano, SA, Italy
| | - Maria C Cerra
- Department of Biology, Ecology and E.S., University of Calabria, 87036 Arcavacata di Rende, CS, Italy.
| | - Maria S Sinicropi
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Arcavacata di Rende, CS, Italy
| | - Tommaso Angelone
- Department of Biology, Ecology and E.S., University of Calabria, 87036 Arcavacata di Rende, CS, Italy
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Grande F, Mordocco R, Puoci F, Parisi O, Scrivano L, Quintieri A, Rocca C, Cantafio P, Ferla S, Brancale A, Cerra M, Sinicropi M, Angelone T. Antihypertensive effects of novel Quercetin derivatives. Vascul Pharmacol 2015. [DOI: 10.1016/j.vph.2015.11.079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Angelone T, Penna C, De Francesco E, Pasqua T, Rocca C, Cantafio P, Femminò S, Filice E, Pagliaro P, Maggiolini M, Cerra M. Pre-conditioning cardioprotection mediated by the estrogen receptors in spontaneously hypertensive female rats. Vascul Pharmacol 2015. [DOI: 10.1016/j.vph.2015.11.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Mazza R, Gattuso A, Filice M, Cantafio P, Cerra MC, Angelone T, Imbrogno S. Nesfatin-1 as a new positive inotrope in the goldfish (Carassius auratus) heart. Gen Comp Endocrinol 2015; 224:160-7. [PMID: 26248227 DOI: 10.1016/j.ygcen.2015.08.003] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Revised: 07/27/2015] [Accepted: 08/01/2015] [Indexed: 10/23/2022]
Abstract
The hypothalamic neuropeptide Nesfatin-1 is present in both mammals and teleosts in which it elicits anorexigenic effects. In mammals, Nesfatin-1 acts on the heart by inducing negative inotropism and lusitropism, and cardioprotection against ischemic damages. We evaluated whether in teleosts, Nesfatin-1 also influences cardiac performance. In the goldfish (Carassius auratus), mature, fully processed Nesfatin-1 was detected in brain, gills, intestine and skeletal muscle, but not in the cardiac ventricle. However, on the isolated and perfused working goldfish heart, exogenous Nesfatin-1 induced a positive inotropic effect, revealed by a dose-dependent increase of stroke volume (SV) and stroke work (SW). Positive inotropism was abolished by inhibition of adenylate cyclase (AC; MDL123330A) and cAMP-dependent kinase (PKA; KT5720), suggesting a cAMP/PKA-mediated pathway. This was confirmed by the increased cAMP concentrations revealed by ELISA on Nesfatin-1-treated hearts. Perfusion with Diltiazem, Thapsigargin and PD98059 showed the involvement of L-type calcium channels, SERCA2a pumps and ERK1/2, respectively. The role of ERK1/2 and phospholamban in Nesfatin-1-induced cardiostimulation was supported by Western blotting analysis. In conclusion, this is the first report showing that in teleosts, Nesfatin-1 potentiates mechanical cardiac performance, strongly supporting the evolutionary importance of the peptide in the control of the cardiac function of vertebrates.
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Affiliation(s)
- R Mazza
- Dept. of Biology, Ecology and Earth Sciences (B.E.ST), University of Calabria, Arcavacata di Rende (CS), Italy
| | - A Gattuso
- Dept. of Biology, Ecology and Earth Sciences (B.E.ST), University of Calabria, Arcavacata di Rende (CS), Italy
| | - M Filice
- Dept. of Biology, Ecology and Earth Sciences (B.E.ST), University of Calabria, Arcavacata di Rende (CS), Italy
| | - P Cantafio
- Dept. of Biology, Ecology and Earth Sciences (B.E.ST), University of Calabria, Arcavacata di Rende (CS), Italy
| | - M C Cerra
- Dept. of Biology, Ecology and Earth Sciences (B.E.ST), University of Calabria, Arcavacata di Rende (CS), Italy
| | - T Angelone
- Dept. of Biology, Ecology and Earth Sciences (B.E.ST), University of Calabria, Arcavacata di Rende (CS), Italy
| | - S Imbrogno
- Dept. of Biology, Ecology and Earth Sciences (B.E.ST), University of Calabria, Arcavacata di Rende (CS), Italy.
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8
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Filice E, Pasqua T, Quintieri AM, Cantafio P, Scavello F, Amodio N, Cerra MC, Marban C, Schneider F, Metz-Boutigue MH, Angelone T. Chromofungin, CgA47-66-derived peptide, produces basal cardiac effects and postconditioning cardioprotective action during ischemia/reperfusion injury. Peptides 2015; 71:40-8. [PMID: 26151429 DOI: 10.1016/j.peptides.2015.06.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Revised: 06/16/2015] [Accepted: 06/16/2015] [Indexed: 12/12/2022]
Abstract
Endogenous chromogranin A (CgA)-derived peptides are secreted by nervous, endocrine and immune cells. Chromofungin (Chr: CgA47-66) is one of these peptides that display antimicrobial activities and activate neutrophils, with important implications in inflammation and innate immunity. The aim of the present study is to examine the effects of Chr on isolated and Langendorff perfused rat hearts. The study was performed by using the isolated and Langendorff perfused rat hearts, Elisa assay and real-time PCR. We found that, under basal conditions, increasing doses (11-165nM) of Chr induced negative inotropic effects without changing coronary pressure. This action was mediated by the AKT/eNOS/cGMP/PKG pathway. We also found that Chr acted as a postconditioning (PostC) agent against ischemia/reperfusion (I/R) damages, reducing infarct size and LDH level. Cardioprotection involved PI3K, RISK pathway, MitoKATP and miRNA-21. We suggest that Chr directly affects heart performance, protects against I/R myocardial injuries through the activation of prosurvival kinases. Results may propose Chr as a new physiological neuroendocrine modulator able to prevent heart dysfunctions, also encouraging the clarification of its clinical potential.
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Affiliation(s)
- Elisabetta Filice
- Department of Biology, Ecology and Earth Sciences, University of Calabria, 87036 Arcavacata di Rende, CS, Italy
| | - Teresa Pasqua
- Department of Biology, Ecology and Earth Sciences, University of Calabria, 87036 Arcavacata di Rende, CS, Italy
| | - Anna Maria Quintieri
- Department of Biology, Ecology and Earth Sciences, University of Calabria, 87036 Arcavacata di Rende, CS, Italy
| | - Patrizia Cantafio
- Department of Biology, Ecology and Earth Sciences, University of Calabria, 87036 Arcavacata di Rende, CS, Italy
| | - Francesco Scavello
- Department of Biology, Ecology and Earth Sciences, University of Calabria, 87036 Arcavacata di Rende, CS, Italy
| | - Nicola Amodio
- Department of Experimental and Clinical Medicine, University of Catanzaro Magna Græcia, Catanzaro, Italy
| | - Maria Carmela Cerra
- Department of Biology, Ecology and Earth Sciences, University of Calabria, 87036 Arcavacata di Rende, CS, Italy; National Institute of Cardiovascular Research, Italy
| | - Céline Marban
- University of Strasbourg, Biomatériaux et Ingénierie Tissulaire, Inserm U977, Strasbourg, France
| | - Francis Schneider
- University of Strasbourg, Biomatériaux et Ingénierie Tissulaire, Inserm U977, Strasbourg, France
| | | | - Tommaso Angelone
- Department of Biology, Ecology and Earth Sciences, University of Calabria, 87036 Arcavacata di Rende, CS, Italy; National Institute of Cardiovascular Research, Italy.
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Angelone T, Quintieri AM, Pasqua T, Filice E, Cantafio P, Scavello F, Rocca C, Mahata SK, Gattuso A, Cerra MC. The NO stimulator, Catestatin, improves the Frank-Starling response in normotensive and hypertensive rat hearts. Nitric Oxide 2015; 50:10-19. [PMID: 26241941 DOI: 10.1016/j.niox.2015.07.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Revised: 07/08/2015] [Accepted: 07/29/2015] [Indexed: 10/23/2022]
Abstract
The myocardial response to mechanical stretch (Frank-Starling law) is an important physiological cardiac determinant. Modulated by many endogenous substances, it is impaired in the presence of cardiovascular pathologies and during senescence. Catestatin (CST:hCgA352-372), a 21-amino-acid derivate of Chromogranin A (CgA), displays hypotensive/vasodilatory properties and counteracts excessive systemic and/or intra-cardiac excitatory stimuli (e.g., catecholamines and endothelin-1). CST, produced also by the myocardium, affects the heart by modulating inotropy, lusitropy and the coronary tone through a Nitric Oxide (NO)-dependent mechanism. This study evaluated the putative influence elicited by CST on the Frank-Starling response of normotensive Wistar-Kyoto (WKY) and hypertensive (SHR) hearts by using isolated and Langendorff perfused cardiac preparations. Functional changes were evaluated on aged (18-month-old) WKY rats and SHR which mimic human chronic heart failure (HF). Comparison to WKY rats, SHR showed a reduced Frank-Starling response. In both rat strains, CST administration improved myocardial mechanical response to increased end-diastolic pressures. This effect was mediated by EE/IP3K/NOS/NO/cGMP/PKG, as revealed by specific inhibitors. CST-dependent positive Frank-Starling response is paralleled by an increment in protein S-Nitrosylation. Our data suggested CST as a NO-dependent physiological modulator of the stretch-induced intrinsic regulation of the heart. This may be of particular importance in the aged hypertrophic heart, whose function is impaired because of a reduced systolic performance accompanied by delayed relaxation and increased diastolic stiffness.
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Affiliation(s)
- T Angelone
- Dept of Biology, Ecology and Earth Sciences, University of Calabria, Rende, CS, Italy; National Institute of Cardiovascular Research, Bologna, Italy
| | - A M Quintieri
- Dept of Biology, Ecology and Earth Sciences, University of Calabria, Rende, CS, Italy
| | - T Pasqua
- Dept of Biology, Ecology and Earth Sciences, University of Calabria, Rende, CS, Italy
| | - E Filice
- Dept of Biology, Ecology and Earth Sciences, University of Calabria, Rende, CS, Italy
| | - P Cantafio
- Dept of Biology, Ecology and Earth Sciences, University of Calabria, Rende, CS, Italy
| | - F Scavello
- Dept of Biology, Ecology and Earth Sciences, University of Calabria, Rende, CS, Italy
| | - C Rocca
- Dept of Biology, Ecology and Earth Sciences, University of Calabria, Rende, CS, Italy
| | - S K Mahata
- Department of Medicine, University of California & VA San Diego Healthcare System, San Diego, USA
| | - A Gattuso
- Dept of Biology, Ecology and Earth Sciences, University of Calabria, Rende, CS, Italy.
| | - M C Cerra
- Dept of Biology, Ecology and Earth Sciences, University of Calabria, Rende, CS, Italy; National Institute of Cardiovascular Research, Bologna, Italy.
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