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Carraro A, De Gaspari P, Antoniello B, Marzenta D, Vianello E, Bussolati B, Tritta S, Collino F, Bertoldi L, Benvenuto G, Vedovelli L, Benetti E, Negrisolo S. New Insights into Pediatric Kidney Transplant Rejection Biomarkers: Tissue, Plasma and Urine MicroRNAs Compared to Protocol Biopsy Histology. Int J Mol Sci 2024; 25:1911. [PMID: 38339187 PMCID: PMC10856071 DOI: 10.3390/ijms25031911] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/26/2024] [Accepted: 01/30/2024] [Indexed: 02/12/2024] Open
Abstract
The early identification of a subclinical rejection (SCR) can improve the long-term outcome of the transplanted kidney through intensified immunosuppression. However, the only approved diagnostic method is the protocol biopsy, which remains an invasive method and not without minor and/or major complications. The protocol biopsy is defined as the sampling of allograft tissue at pre-established times even in the absence of an impaired renal function; however, it does not avoid histological damage. Therefore, the discovery of new possible biomarkers useful in the prevention of SCR has gained great interest. Among all the possible candidates, there are microRNAs (miRNAs), which are short, noncoding RNA sequences, that are involved in mediating numerous post-transcriptional pathways. They can be found not only in tissues, but also in different biological fluids, both as free particles and contained in extracellular vesicles (EVs) released by different cell types. In this study, we firstly performed a retrospective miRNA screening analysis on biopsies and serum EV samples of 20 pediatric transplanted patients, followed by a second screening on another 10 pediatric transplanted patients' urine samples at one year post-transplant. In both cohorts, we divided the patients into two groups: patients with histological SCR and patients without histological SCR at one year post-transplantation. The isolated miRNAs were analyzed in an NGS platform to identify different expressions in the two allograft states. Although no statistical data were found in sera, in the tissue and urinary EVs, we highlighted signatures of miRNAs associated with the histological SCR state.
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Affiliation(s)
- Andrea Carraro
- Laboratory of Immunopathology and Molecular Biology of the Kidney, Department of Women’s and Children’s Health, University of Padova, 35127 Padua, Italy
| | - Piera De Gaspari
- Laboratory of Immunopathology and Molecular Biology of the Kidney, Department of Women’s and Children’s Health, University of Padova, 35127 Padua, Italy
- Laboratory Reference, Euroimmun Italy, 35127 Padua, Italy
| | - Benedetta Antoniello
- Laboratory of Immunopathology and Molecular Biology of the Kidney, Department of Women’s and Children’s Health, University of Padova, 35127 Padua, Italy
| | - Diana Marzenta
- Laboratory of Immunopathology and Molecular Biology of the Kidney, Department of Women’s and Children’s Health, University of Padova, 35127 Padua, Italy
- Pediatric Nephrology, Department of Women’s and Children’s Health, Padua University Hospital, 35128 Padua, Italy
| | - Emanuele Vianello
- Pediatric Nephrology, Department of Women’s and Children’s Health, Padua University Hospital, 35128 Padua, Italy
| | - Benedetta Bussolati
- Department of Molecular Biotechnology and Health Sciences, University of Turin, 10124 Torino, Italy
| | - Stefania Tritta
- Department of Molecular Biotechnology and Health Sciences, University of Turin, 10124 Torino, Italy
| | - Federica Collino
- Department of Clinical Sciences and Community Health, University of Milano, 20126 Milan, Italy
- Paediatric Nephrology, Dialysis and Transplant Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | | | | | - Luca Vedovelli
- Unit of Biostatistics, Epidemiology and Public Health, Department of Cardio-Thoraco-Vascular Sciences and Public Health, University of Padova, 35128 Padova, Italy
| | - Elisa Benetti
- Laboratory of Immunopathology and Molecular Biology of the Kidney, Department of Women’s and Children’s Health, University of Padova, 35127 Padua, Italy
- Pediatric Nephrology, Department of Women’s and Children’s Health, Padua University Hospital, 35128 Padua, Italy
- Pediatric Research Institute “IRP Città della Speranza”, 35127 Padua, Italy
| | - Susanna Negrisolo
- Laboratory of Immunopathology and Molecular Biology of the Kidney, Department of Women’s and Children’s Health, University of Padova, 35127 Padua, Italy
- Pediatric Research Institute “IRP Città della Speranza”, 35127 Padua, Italy
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Dozio E, Vianello E, Ambrogi F, De Cal M, Ronco C, Tacchini L, Corsi Romanelli MM. sRAGE: a prognostic factor for mortality in end-stage renal disease patients on dialysis. J BIOL REG HOMEOS AG 2018; 32:33. [PMID: 30810006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Affiliation(s)
- E Dozio
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy; laboratory of Molecular Pathology, IRCCS Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - E Vianello
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - F Ambrogi
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - M De Cal
- Department of Nephrology, Dialysis and Transplantation, San Bortolo Hospital, Vicenza, Italy; International Renal Research Institute Vicenza (IRRIV), San Bortolo Hospital, Vicenza, Italy
| | - C Ronco
- Department of Nephrology, Dialysis and Transplantation, San Bortolo Hospital, Vicenza, Italy; International Renal Research Institute Vicenza (IRRIV), San Bortolo Hospital, Vicenza, Italy
| | - L Tacchini
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - M M Corsi Romanelli
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy; Service of Laboratory Medicine1-Clinical Pathology, I.R.C.C.S. Policlinico San Donato, San Donato Milanese, Milan, Italy
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Vianello E, Dozio E, Tacchini L, Lamont J, Bandera F, Corsi Romanelli MM. Dysfunctional epicardial adipose tissue (EAT) and maladaptive heart remodeling in patients with increased visceral adiposity: the ST2/IL-33 cardio-fat signaling. J BIOL REG HOMEOS AG 2018; 32:21-25. 4° JOINT MEETING OF PATHOLOGY AND LABORATORY MEDICINE SIPMET–SIPMEL-4° CONGRESS OF PATHOLOGY AND LABORATORY MEDICINE. [PMID: 30761863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Affiliation(s)
- E Vianello
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
| | - E Dozio
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
- Laboratory of Molecular Pathology, IRCCS Policlinico San Donato, San Donato Milanese, Italy
| | - L Tacchini
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
| | - J Lamont
- Randox Laboratories LTD, Research and Development, Crumlin-Antrim, Belfast,Northen Ireland, UK
| | - F Bandera
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
- Cardiology University Department, Heart Failure Unit, IRCCS Policlinico San Donato, Milan, Italy
| | - M M Corsi Romanelli
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
- U.O.C. SMEL-1 of Clinical Pathology, IRCCS Policlinico San Donato, San Donato Milanese, Italy
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Dozio E, Bandera F, Vianello E, Brizzola S, Tacchini L, Corsi Romanelli MM. Upregulation of circulating levels of receptor for advanced glycation end products (sRAGE) in obese rats may protect against ectopic fat accumulation in the heart. J BIOL REG HOMEOS AG 2018; 32:32. [PMID: 30767496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Affiliation(s)
- E Dozio
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy; laboratory of Molecular Pathology, IRCCS Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - F Bandera
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy; Department of Cardiology, IRCCS Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - E Vianello
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - S Brizzola
- Department of Veterinary Medicine, Università degli Studi di Milano, Milan, Italy
| | - L Tacchini
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - M M Corsi Romanelli
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy; Service of Laboratory Medicine1-Clinical Pathology, I.R.C.C.S. Policlinico San Donato, San Donato Milanese, Milan, Italy
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Dozio E, Vianello E, Grossi E, Menicanti L, Schmitz G, Corsi Romanelli MM. Plasma fatty acid profile as biomarker of coronary artery disease: a pilot study using fourth generation artificial neural networks. J BIOL REG HOMEOS AG 2018; 32:1007-1013. [PMID: 30043586 DOI: pmid/30043586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Many studies, focused on identifying new biomarkers for coronary artery disease (CAD) risk computation and monitoring, suggested a potential diagnostic role for fatty acids (FA). In the present study, we explored the potential diagnostic role of FA by using a data mining approach based on fourth generation artificial neural networks (ANN). Forty-one male subjects were enrolled. According to coronary angiography, 31 displayed CAD and 10 did not (non-CAD, control group). FA analysis was performed on plasma samples using a gas chromatography-mass spectrometry system and analyses were performed by an ANN method. The variables most closely related to CAD were low levels of alpha-linolenic acid, eicosapentaenoic acid, eicosatetraenoic and docosahexaenoic acids. High levels of 1,1-dimethoxyhexadecane, total dimethyl acetals and docosatetraenoic acid were related to non-CAD condition. This subset of variables, which were most closely correlated to the target diagnosis, achieved a consistent predictive rate. The average accuracy obtained was 76.5%, with 93% of sensitivity and 60% of specificity. The area under the ROC curve was equal to 0.79. In conclusion, our study highlighted the association between different plasma FA species, CAD and non-CAD conditions. The specific subset of variables could be of interest as a new diagnostic tool for CAD management.
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Affiliation(s)
- E Dozio
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - E Vianello
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - E Grossi
- Villa Santa Maria Institute, Tavernerio, Como, Italy
| | - L Menicanti
- Department of Cardiac Surgery, I.R.C.C.S. Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - G Schmitz
- Institute for Clinical Chemistry and Laboratory Medicine, University of Regensburg, Regensburg, Germany
| | - M M Corsi Romanelli
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
- Service of Laboratory Medicine 1-Clinical Pathology, I.R.C.C.S. Policlinico San Donato, San Donato Milanese, Milan, Italy
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Vianello E, Dozio E, Brizzola S, Acocella F, Tacchini L, Corsi Romanelli MM. ST2 fibro-citokine and IL-33 alarmin protein are expressed in obese fa/fa- Zucker rat model and correlated with pro-fibrotic gene pathways. J BIOL REG HOMEOS AG 2018; 32:35. [PMID: 30810008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Affiliation(s)
- E Vianello
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
| | - E Dozio
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy and Laboratory of Molecular Pathology, IRCCS Policlinico San Donato, San Donato Milanese, Italy
| | - S Brizzola
- Department of Veterinary Medicine, University of Milan, Milan, Italy
| | - F Acocella
- Department of Health, Animal Science and Food Safety, University of Milan, Milan, Italy
| | - L Tacchini
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
| | - M M Corsi Romanelli
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy and UOC SMEL-1 of Clinical Pathology, IRCCS Policlinico San Donato, San Donato Milanese, Italy
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Carraro A, Negrisolo S, Fregonese G, Vianello E, Gamba P, Valle G, Murer L. FP698MICRORNA SEQUENCING IN GRAFT PROTOCOL BIOPSIES: NOVEL BIOMARKERS OF GRAFT REJECTION IN PEDIATRIC KIDNEY TRANSPLANTATION. Nephrol Dial Transplant 2018. [DOI: 10.1093/ndt/gfy104.fp698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Andrea Carraro
- Department of Women's and Children's Health, Pediatric Nephrology, Dialysis and Transplant Unit-Hospital University of Padova, Padova, Italy
| | - Susanna Negrisolo
- Department of Women's and Children's Health, Pediatric Nephrology, Dialysis and Transplant Unit-Hospital University of Padova, Padova, Italy
| | - Giulia Fregonese
- Department of Women's and Children's Health, Pediatric Nephrology, Dialysis and Transplant Unit-Hospital University of Padova, Padova, Italy
| | - Emanuele Vianello
- Department of Women's and Children's Health, Pediatric Nephrology, Dialysis and Transplant Unit-Hospital University of Padova, Padova, Italy
| | - Piergiorgio Gamba
- Department of Women's and Children's Health, Pediatric Surgery- Hospital University of Padova, Padova, Italy
| | - Giorgio Valle
- Department of Biology, University of Padua, Padova, Italy
| | - Luisa Murer
- Department of Women's and Children's Health, Pediatric Nephrology, Dialysis and Transplant Unit-Hospital University of Padova, Padova, Italy
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Vianello E, Dozio E, Barassi A, Sammarco G, Tacchini L, Marrocco-Trischitta MM, Trimarchi S, Corsi Romanelli MM. A pilot observational study on magnesium and calcium imbalance in elderly patients with acute aortic dissection. Immun Ageing 2017; 14:1. [PMID: 28070203 PMCID: PMC5217585 DOI: 10.1186/s12979-016-0083-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [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: 07/19/2016] [Accepted: 12/06/2016] [Indexed: 12/13/2022]
Abstract
Background Magnesium (Mg) and calcium (Ca) are the principal essential elements involved in endothelial cell homeostasis. Extracellular changes in the levels of either alter endothelial contraction and dilatation. Consequently Mg and Ca imbalance is associated with a high risk of endothelial dysfunction, the main process observed during acute aortic dissection (AAD); in this clinical condition, which mainly affects elderly men, smooth muscle cell alterations lead to intimal tears, creating a false new lumen in the media of the aorta. AAD patients have a high risk of mortality as a result of late diagnosis because often it is not distinguished from other cardiovascular diseases. We investigated Mg and Ca total circulating levels and the associated pro-inflammatory mediators in elderly AAD patients, to gain further information on the pathophysiology of this disorder, with a view to suggesting newer and earlier potential biomarkers of AAD. Results Total circulating Mg and Ca levels were both lower in AAD patients than controls (p < 0.0001). Using Ca as cut-off, 90% of AAD patients with low Ca (<8.4 mg/dL) came into the type A classification of AAD. Stratifying AAD according to this cut-off, Mg was lower in patients with lower total Ca. Compared to controls, both type A and B AAD patients had higher levels of all the pro-coagulant and pro-inflammatory mediators analyzed, including sP-sel, D-dimer, TNF-α, IL-6, and CRP (p < 0.05). Dividing types A and B using the Stanford classification, no significant differences were found (p > 0.05) The levels of both ICAM-1 and EN-1 were lower in AAD than in a control group (p < 0.0001 and p < 0.05 respectively). Conclusions These findings suggest that low Mg and Ca in AAD elderly patients may contribute to altering normal endothelial physiology and also concur in changing the normal concentrations of different mediators involved in vasodilatation and constriction, associated with AAD onset and severity.
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Affiliation(s)
- E Vianello
- Department of Biomedical Sciences for Health, Chair of Clinical Pathology, Università degli Studi di Milano, via Luigi Mangiagalli 31, 20133 Milan, Italy
| | - E Dozio
- Department of Biomedical Sciences for Health, Chair of Clinical Pathology, Università degli Studi di Milano, via Luigi Mangiagalli 31, 20133 Milan, Italy
| | - A Barassi
- Department of Health Sciences, Università degli Studi di Milano, Milan, Italy
| | - G Sammarco
- Laboratory Medicine Operative Unit-1, Clinical Pathology, I.R.C.C.S. Policlinico San Donato Milanese, Milan, Italy
| | - L Tacchini
- Department of Biomedical Sciences for Health, Chair of Clinical Pathology, Università degli Studi di Milano, via Luigi Mangiagalli 31, 20133 Milan, Italy
| | - M M Marrocco-Trischitta
- Thoracic Aortic Research Center, I.R.C.C.S. Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - S Trimarchi
- Department of Biomedical Sciences for Health, Chair of Clinical Pathology, Università degli Studi di Milano, via Luigi Mangiagalli 31, 20133 Milan, Italy ; Thoracic Aortic Research Center, I.R.C.C.S. Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - M M Corsi Romanelli
- Department of Biomedical Sciences for Health, Chair of Clinical Pathology, Università degli Studi di Milano, via Luigi Mangiagalli 31, 20133 Milan, Italy ; Laboratory Medicine Operative Unit-1, Clinical Pathology, I.R.C.C.S. Policlinico San Donato Milanese, Milan, Italy
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Galliera E, Marazzi MG, Vianello E, Drago L, Luzzati A, Bendinelli P, Maroni P, Tacchini L, Desiderio MA, Corsi Romanelli MM. Circulating sRAGE in the diagnosis of osteolytic bone metastasis. J BIOL REG HOMEOS AG 2016; 30:1203-1208. [PMID: 28078875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Despite the clinical importance of metastasis to the skeleton, the diagnostic tools for early detection and monitoring of bone metastasis lack sensitivity and specificity. We evaluated a promising new serum biomarker, the soluble form of the Receptor of Advanced Glycosylated End-products (sRAGE). sRAGE is involved in the Wnt-signaling pathway, and has been reported to reduce the risk of cancer. We investigated the diagnostic potential of sRAGE to improve the detection and monitoring of bone metastasis. We measured sRAGE in the serum of control healthy subjects, patients with primary tumors and patients with bone metastasis. sRAGE was also correlated with the Wnt inhibitors DKK-1 and sclerostin, the bone resorption markers MMP-2, MMP-9 and TRAP5, and the metastatic marker survivin. sRAGE was significantly lower in primary tumor and metastatic patients than in healthy subjects. sRAGE also showed a strong negative correlation with DKK-1, sclerostin, MMP-2, MMP-9, TRAP5b and survivin. These results indicated that sRAGE might play a protective role in bone metastasis progression, and it may diagnostic significance for detecting and monitoring osteolytic metastases.
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Affiliation(s)
- E Galliera
- Department of Biomedical, Surgical and Oral Science, Università degli Studi di Milano, Milan, Italy
- IRCCS Galeazzi Orthopedic Institute, Milan, Italy
| | - M G Marazzi
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - E Vianello
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - L Drago
- IRCCS Galeazzi Orthopedic Institute, Milan, Italy
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - A Luzzati
- IRCCS Galeazzi Orthopedic Institute, Milan, Italy
| | - P Bendinelli
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - P Maroni
- IRCCS Galeazzi Orthopedic Institute, Milan, Italy
| | - L Tacchini
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - M A Desiderio
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - M M Corsi Romanelli
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
- U.O.C SMEL-1 Patologia Clinica IRCCS Policlinico San Donato, San Donato, Milan, Italy
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Castellan A, Masetti F, Mazzucato U, Vianello E. Oxidation of 1-Phenyl-3-Pyrazolidones. Decay Kinetics of the Intermediate Free Radical. ACTA ACUST UNITED AC 2016. [DOI: 10.1080/00223638.1966.11737349] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Vianello E, Dozio E, Rigolini R, Marrocco-Trischitta MM, Tacchini L, Trimarchi S, Corsi Romanelli MM. Acute phase of aortic dissection: a pilot study on CD40L, MPO, and MMP-1, -2, 9 and TIMP-1 circulating levels in elderly patients. Immun Ageing 2016; 13:9. [PMID: 27006681 PMCID: PMC4802618 DOI: 10.1186/s12979-016-0063-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [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: 12/22/2015] [Accepted: 03/14/2016] [Indexed: 12/25/2022]
Abstract
Background Acute aortic dissection (AAD) is an event which may be rapidly fatal without early diagnosis and treatment. Aging is one of the main risk factors that could leading to AAD. To date, no specific biomarkers are available to increase the speed of diagnosis. CD40 ligand (CD40L), myeloperoxidase (MPO), matrix metalloproteinase (MMP)-1, -2, -9 and metallopeptidase tissue inhibitor 1 (TIMP-1) are biologically related molecules which integrate inflammation, tissue injury and remodeling, all events associated to AAD. Our is a pilot study to evaluate whether circulating levels of these molecules may be used as potential biomarkers in timely diagnosis of AAD. Results Within 24 h of symptom onset, circulating CD40L, MPO, MMP-1,-2,-9 and TIMP-1 were quantified by enzyme-linked immunosorbent assays in 22 patients (40–86 years of age) with AAD of ascending aorta (type A according to Stanford classification) and 11 patients with AAD of descending aorta (type B). 30 healthy individuals age matched were used as control group compared to controls, both type A and B AAD patients had higher CD40L (p < 0.001) and MPO (p < 0.01) levels. MMP-1 was higher in the overall AAD group (p < 0.01). After Stanford classification, type A group had increased level compared to both control and type B (p < 0.01 and p < 0.05, respectively). TIMP-1 was higher in both A and B groups compared to controls (p < 0.001). No differences were observed in MMP-2 and MMP-9 levels. Conclusions The simultaneous evaluation of CD40L, MPO and MMP-1 and TIMP-1, which may contribute to structural changes in aortic tissue in AAD patients, seems to be a novel promising diagnostic panel.
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Affiliation(s)
- E Vianello
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Via Luigi Mangiagalli 31, 20133 Milan, Italy
| | - E Dozio
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Via Luigi Mangiagalli 31, 20133 Milan, Italy
| | - R Rigolini
- Laboratory Medicine Operative Unit-1, Clinical Pathology, I.R.C.C.S. Policlinico, San Donato Milanese Milan, Italy
| | - M M Marrocco-Trischitta
- Thoracic Aortic Research Center, I.R.C.C.S. Policlinico San Donato, San Donato Milanese Milan, Italy
| | - L Tacchini
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Via Luigi Mangiagalli 31, 20133 Milan, Italy
| | - S Trimarchi
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Via Luigi Mangiagalli 31, 20133 Milan, Italy ; Thoracic Aortic Research Center, I.R.C.C.S. Policlinico San Donato, San Donato Milanese Milan, Italy
| | - M M Corsi Romanelli
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Via Luigi Mangiagalli 31, 20133 Milan, Italy ; Laboratory Medicine Operative Unit-1, Clinical Pathology, I.R.C.C.S. Policlinico, San Donato Milanese Milan, Italy
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12
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Vianello E, Dozio E, Arnaboldi F, Marazzi MG, Martinelli C, Lamont J, Tacchini L, Sigrüner A, Schmitz G, Corsi Romanelli MM. Epicardial adipocyte hypertrophy: Association with M1-polarization and toll-like receptor pathways in coronary artery disease patients. Nutr Metab Cardiovasc Dis 2016; 26:246-253. [PMID: 26841679 DOI: 10.1016/j.numecd.2015.12.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [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: 03/18/2015] [Revised: 11/02/2015] [Accepted: 12/07/2015] [Indexed: 12/31/2022]
Abstract
BACKGROUND AND AIMS In coronary artery disease (CAD) epicardial adipose tissue (EAT) shows an elevated inflammatory infiltrate. Toll-like receptors (TLRs) are important mediators of adipose tissue inflammation and they are able to recognize endogenous products released by damaged cells. Because adipocyte death may be driven by hypertrophy, our aim was to investigate in CAD and non-CAD patients the association between EAT adipocyte size, macrophage infiltration/polarization and TLR-2 and TLR-4 expression. METHODS AND RESULTS EAT biopsies were collected from CAD and non-CAD patients. The adipocyte size was determined by morphometric analysis. Microarray technology was used for gene expression analysis; macrophage phenotype and TLRs expression were analyzed by immunofluorescence and immunohistochemical techniques. Inflammatory mediator levels were determined by immunoassays. EAT adipocytes were larger in CAD than non-CAD patients and do not express perilipin A, a marker of lipid droplet integrity. In CAD, EAT is more infiltrated by CD68-positive cells which are polarized toward an M1 state (CD11c positive) and presents an increased pro-inflammatory profile. Both TLR-2 and TLR-4 expression is higher in EAT from CAD and observed on all the CD68-positive cells. CONCLUSIONS Our findings suggested that EAT hypertrophy in CAD promotes adipocyte degeneration and drives local inflammation through increased infiltration of macrophages which are mainly polarized towards an M1 state and express both TLR-2 and TLR-4.
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Affiliation(s)
- E Vianello
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy.
| | - E Dozio
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - F Arnaboldi
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - M G Marazzi
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - C Martinelli
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - J Lamont
- Randox Laboratories LTD, R&D, Crumlin-Antrim, Belfast, Northern Ireland, UK
| | - L Tacchini
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - A Sigrüner
- Institute for Clinical Chemistry and Laboratory Medicine, University of Regensburg, Germany
| | - G Schmitz
- Institute for Clinical Chemistry and Laboratory Medicine, University of Regensburg, Germany
| | - M M Corsi Romanelli
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy; SMEL-1 Clinical Pathology, I.R.C.C.S. Policlinico San Donato, Milan, Italy
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13
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Dozio E, Briganti S, Vianello E, Dogliotti G, Barassi A, Malavazos AE, Ermetici F, Morricone L, Sigruener A, Schmitz G, Corsi Romanelli MM. Epicardial adipose tissue inflammation is related to vitamin D deficiency in patients affected by coronary artery disease. Nutr Metab Cardiovasc Dis 2015; 25:267-273. [PMID: 25315671 DOI: 10.1016/j.numecd.2014.08.012] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [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: 05/30/2014] [Revised: 08/06/2014] [Accepted: 08/29/2014] [Indexed: 01/26/2023]
Abstract
BACKGROUND AND AIMS Alterations in epicardial adipose tissue (EAT) biology (i.e. increased fat thickness and inflammation) have been described in coronary artery disease (CAD) patients. In addition to its classic role in the regulation of calcium-phosphate homeostasis, vitamin D may exert immune-regulatory and anti-inflammatory effects. Whether EAT inflammation may be linked to vitamin D deficiency is still unknown. In the present study we evaluated plasma 25-hydroxycholecalciferol (25OHD) level in CAD patients and its relationship with EAT ability to locally metabolize vitamin D, EAT expression of inflammation-related molecules and EAT thickness. METHODS AND RESULTS Plasma 25OHD level was quantified by an immunoluminometric assay. EAT expression of inflammation-related molecules (MCP-1, PTX3, TNFα, IL-6, adiponectin), vitamin D receptor (VDR), CYP27B1 (25OHD-activating enzyme) and CYP24A1 (1,25-dihydroxycholecalciferol-metabolizing enzyme) was performed by microarray. EAT thickness was quantified by echocardiography. Median plasma 25OHD level was 10.85 ng/mL and 83% of CAD patients displayed 25OHD level below 20 ng/mL. At decreasing plasma 25OHD concentration, we observed a down-regulation in CYP27B1 and CYP24A1 level and an increased expression of VDR and pro-inflammatory cytokines (MCP-1, PTX3, TNFα, IL-6) at EAT level. No correlation was observed between plasma 25OHD level and EAT thickness. CONCLUSION Our data suggest an increased activation of inflammatory pathways at EAT level possibly related to systemic and local vitamin D deficiency in CAD patients. Whether maintaining an optimal vitamin D status may be helpful to reduce EAT inflammation and to prevent CAD and its progression needs further investigation.
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Affiliation(s)
- E Dozio
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy.
| | - S Briganti
- Diabetology and Metabolic Diseases Unit, I.R.C.C.S. Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - E Vianello
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - G Dogliotti
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - A Barassi
- Department of Sciences for Health, Ospedale San Paolo, Università degli Studi di Milano, Milan, Italy
| | - A E Malavazos
- Diabetology and Metabolic Diseases Unit, I.R.C.C.S. Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - F Ermetici
- Diabetology and Metabolic Diseases Unit, I.R.C.C.S. Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - L Morricone
- Diabetology and Metabolic Diseases Unit, I.R.C.C.S. Policlinico San Donato, San Donato Milanese, Milan, Italy
| | - A Sigruener
- Institute for Clinical Chemistry and Laboratory Medicine, University of Regensburg, Regensburg, Germany
| | - G Schmitz
- Institute for Clinical Chemistry and Laboratory Medicine, University of Regensburg, Regensburg, Germany
| | - M M Corsi Romanelli
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy; Service of Laboratory Medicine 1 - Clinical Pathology, Department of Health Services of Diagnosis and Treatment - Laboratory Medicine, I.R.C.C.S. Policlinico San Donato, San Donato Milanese, Milan, Italy
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14
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Dogliotti G, Dozio E, Sigruener A, Malavazos A, Vianello E, Tarabin V, Liebisch G, Schmitz G, Corsi Romanelli M. Glycerophospholipid and sphingolipid content in epicardial fat from coronary artery disease (CAD) patients. Clin Biochem 2013. [DOI: 10.1016/j.clinbiochem.2013.05.028] [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: 11/24/2022]
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15
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Dozio E, Barassi A, Marazzi MG, Vianello E, Colpi GM, Solimene U, Melzi D'Eril GL, Corsi Romanelli MM. Plasma myeloperoxidase in patients with erectile dysfunction of arteriogenic- and non-arteriogenic origin: association with markers of endothelial dysfunction. J BIOL REG HOMEOS AG 2013; 27:749-755. [PMID: 24152842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Endothelial dysfunction and the disruption of the nitric oxide-cyclic guanosine monophosphate (cGMP) pathway have been considered the early mechanisms for the development of erectile dysfunction (ED). Myeloperoxidase (MPO), a heme-containing enzyme mainly released by activated neutrophils and monocytes, may contribute to endothelial dysfunction by promoting oxidation of different substrates and thus may play a role in ED. MPO level and its correlation with different plasma biomarkers of endothelial dysfunction were studied in patient with ED of arteriogenic (A-ED) and non-arteriogenic (NA-ED) to assess potential differences between the two ED subgroups. Diagnosis of ED was based on the International Index of Erectile Function Score. Its etiology was classified with penile echo-color Doppler at baseline and after intracavernous injection of prostaglandin E1. MPO, soluble (s) cGMP, sICAM-1, sVCAM-1 and sP-Selectin were measured by enzyme-linked immunosorbent assay. MPO concentration in A-ED was significantly higher compared to control subjects and NA-ED patients. Plasmatic cGMP level resulted lower both in A-ED and in NA-ED patients, whereas no difference has been observed between the two ED groups. sICAM-1 concentration resulted higher in A-ED compared both to controls and NA-ED. sVCAM-1 level was the same in controls, A-ED and NA-ED patients. sP-Selectin concentration resulted higher both in A-ED and in NA-ED patients than in controls, whereas no difference has been observed between the two ED groups. Correlation analysis indicated a positive correlation between plasmatic MPO, sICAM-1 and sP-Selectin levels. MPO may represent an important link between oxidation, inflammation and cardiovascular diseases and may also represent a potential marker to distinguish between the two subgroups of ED patients. Moreover, in ED subjects circulating cGMP may reflect the local signaling dysfunction. The use cGMP as a potential marker for monitoring the disease needs further investigation.
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Affiliation(s)
- E Dozio
- Dipartimento di Scienze Biomediche per la Salute, Cattedra di Patologia Clinica, Universita' degli Studi di Milano, Milan, Italy
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16
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Lombardi G, Corsetti R, Lanteri P, Grasso D, Vianello E, Marazzi MG, Graziani R, Colombini A, Galliera E, Corsi Romanelli MM, Banfi G. Reciprocal regulation of calcium-/phosphate-regulating hormones in cyclists during the Giro d'Italia 3-week stage race. Scand J Med Sci Sports 2013; 24:779-87. [PMID: 23647316 DOI: 10.1111/sms.12080] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/20/2012] [Indexed: 12/25/2022]
Abstract
Calcium and phosphate are essential for cell functions, and their serum concentrations result from the balance between intestinal absorption, bony storage, and urinary excretion. Fibroblast growth factor 23 (FGF23), expressed by osteocytes and osteoblasts, acts in the kidney, leading to hypophosphatemia and low 1,25-dihydroxycholecalciferol synthesis, but suppresses parathyroid function. The aim of this study was to explore the effects of a high-energy demanding cycling race on this bone-kidney-parathyroid axis. We studied nine cyclists during the 2011 Giro d'Italia stage race. Pre-analytical and analytical phases followed academic and anti-doping recommendations. Serum parathyroid hormone (PTH), 25(OH)D, total calcium, inorganic phosphorus, and plasma FGF23 were measured on days -1, 12, and 22 and corrected for changes in plasma volume. Dietary calcium and phosphorus, anthropometric parameters (height, weight, and body mass index) and indexes of metabolic effort (net energy expenditure, power output) were recorded. Dietary calcium and phosphorus intakes were kept at the same levels throughout the race. Twenty-five (OH)D, PTH, and calcium concentrations remained stable. FGF23 increased 50% with a positive correlation with the indexes of metabolic effort and, consequently, phosphorous decreased, although only in the first half. The strong metabolic effort acts on the bone-kidney-parathyroid system, and the rise in FGF23 plasma concentration might be aimed at maintaining calcium and phosphorus homeostasis.
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Affiliation(s)
- G Lombardi
- Experimental Biochemistry and Molecular Biology Laboratory, I.R.C.C.S. Istituto Ortopedico Galeazzi, Milano, Italy
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17
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Dozio E, Dogliotti G, Malavazos AE, Bandera F, Cassetti G, Vianello E, Zelaschi R, Barassi A, Pellissero G, Solimene U, Morricone L, Sigruener A, Tarabin V, Schmitz G, Menicanti L, Corsi Romanelli MM. IL-18 level in patients undergoing coronary artery bypass grafting surgery or valve replacement: which link with epicardial fat depot? Int J Immunopathol Pharmacol 2013; 25:1011-20. [PMID: 23298491 DOI: 10.1177/039463201202500418] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Interleukin-18 (IL-18) is a member of the interleukin-1 family of cytokines produced constitutively by different cell types and by adipose tissue. Due to the link between obesity, inflammation and cardiovascular diseases, we aimed to measure IL-18 circulating level in patients undergoing open-heart surgery both for elective coronary artery bypass grafting (CABG) or for valve replacement (VR), and we also evaluated whether epicardial adipose tissue (EAT) depot may be a potential source of IL-18. Circulating IL-18 protein was quantified by enzyme-linked immunosorbent assay. IL-18, IL-18 receptor 1 (IL-18 R1) and IL-18 receptor accessory protein (IL-18-RAP) gene expression in EAT depot were evaluated by one colour microarray platform. EAT thickness was measured by echocardiography. In this study we found that all cardiovascular patients (CABG and VR) have increased circulating IL-18 level compared to healthy control subjects (p < 0.0001), but no statistical significant difference was observed between CABG and VR groups (p = 0.35). A great increase in the gene expression of IL-18 (p < 0.05), IL-18 R1 (p < 0.01) and IL-18 RAP (p < 0.001) was observed in EAT samples obtained from CABG vs VR patients. In conclusion, CABG and VR patients had similar increased level of circulating IL-18 protein, but in EAT depots isolated from CABG gene expression of IL-18, IL-18 R1 and IL-18-RAP resulted higher than in VR patients. Future investigation on local IL-18 protein production, its autocrine-paracrine effect and its correlation with plasmatic IL-18 level could give more information on the relationship between IL-18 and coronary artery disease.
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Affiliation(s)
- E Dozio
- Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Milan, Italy.
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18
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Cutuli B, Wiazzane N, Radicchia V, Barbieri P, Guenzi M, Huscher A, Borghesi S, Iannone T, Vianello E, Rosetto M. Carcinome canalaire in situ du sein : résultats du traitement radiochirurgical conservateur, analyse de 821 cas. Cancer Radiother 2012. [DOI: 10.1016/j.canrad.2012.07.022] [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: 10/27/2022]
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19
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Drago L, Mattina R, Legnani D, Romano CL, Vianello E, Ricci C, De Vecchi E. Modulation of biofilm of strains isolated from patients with chronic obstructive pulmonary disease by levofloxacin, moxifloxacin, ciprofloxacin, amoxicillin/clavulanic acid and ceftriaxone. Int J Immunopathol Pharmacol 2012; 24:1027-35. [PMID: 22230408 DOI: 10.1177/039463201102400420] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The ability of levofloxacin, moxifloxacin, ciprofloxacin, amoxicillin/clavulanic acid and ceftriaxone to interfere on biofilm produced by Pseudomonas aeruginosa, Haemophilus influenzae and Streptococcus pneumoniae isolated from patients with chronic obstructive pulmonary disease was evaluated. The effects of antibiotics were evaluated on formation of biofilm (at 1/2, 1/4 and 1/8 X MIC) and on preformed biofilm (at epithelial lining fluid peak concentrations) by means of a spectrophotometric method. Levofloxacin was the most active compound followed by ciprofloxacin, moxifloxacin and amoxicillin/clavulanic acid and ceftriaxone. Levofloxacin may contribute to clear the reservoir of pathogens involved in chronic obstructive pulmonary disease, thus leading to decreased occurrence of acute exacerbations.
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Affiliation(s)
- L Drago
- Laboratory of Clinical Chemistry and Microbiology, IRCCS Galeazzi Institute, Milan, Italy.
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20
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Lovati AB, Vianello E, Talò G, Recordati C, Bonizzi L, Galliera E, Broggini M, Moretti M. Biodegradable microcarriers as cell delivery vehicle for in vivo transplantation and magnetic resonance monitoring. J BIOL REG HOMEOS AG 2011; 25:S63-S74. [PMID: 22051172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Microcarrier culture systems offer an attractive method for cell amplification and as delivery vehicle. At the same time, super paramagnetic iron oxide (SPIO) nanoparticles represent a unique in vivo tracking system, already approved for clinical use. In our study, we tested the combination of clinically approved microcarriers and SPIO nanoparticles for cell-construct delivery and subsequent tracking after implantation. In order to mimic better a clinical setting, biodegradable macroporous microcarriers were employed as an alternative approach to expand human primary chondrocytes in a dynamic culture system for subsequent direct transplantation. In addition, cellseeded microcarriers were labeled with SPIO nanoparticles to evaluate the benefits of cell-constructs tracking with magnetic resonance. In vivo subcutaneous implants were monitored for up to 3 weeks and orthotopic implantation was simulated and monitored in ex vivo osteochondral defects.
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Affiliation(s)
- A B Lovati
- IRCCS Istituto Ortopedico Galeazzi, Cell and Tissue Engineering Laboratory, Milan, Italy
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21
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De Paola M, Visconti L, Vianello E, Mattana F, Banfi G, Corsi MM, Beghi E, Mennini T. Circulating cytokines and growth factors in professional soccer players: correlation within vitro-induced motor neuron death. Eur J Neurol 2010; 18:85-92. [DOI: 10.1111/j.1468-1331.2010.03067.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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22
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Dogliotti G, Galliera E, Dozio E, Vianello E, Villa R, Licastro F, Barajon I, Corsi M. Okadaic acid induces apoptosis in Down syndrome fibroblasts. Toxicol In Vitro 2010; 24:815-21. [DOI: 10.1016/j.tiv.2009.12.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2009] [Revised: 11/12/2009] [Accepted: 12/09/2009] [Indexed: 10/20/2022]
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23
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24
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Arévalo M, Maran F, Severin M, Vianello E. A case of the indirect role of traces of water in the electroreduction of organic substrates. J Electroanal Chem (Lausanne) 1996. [DOI: 10.1016/s0022-0728(96)04856-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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25
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Severin M, Farnia G, Vianello E, Arévalo M. Competition between a concerted and a sequential electron transfer-bond breaking path in triphenylmethyl phenyl sulphide reduction. ACTA ACUST UNITED AC 1988. [DOI: 10.1016/0022-0728(88)85197-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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26
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Maran F, Goldblum A, D'Angeli F, Vianello E. Determination of kinetic acidities through an electrogenerated base. Application to the case of a family of NH acids. Electrochim Acta 1988. [DOI: 10.1016/0013-4686(88)80007-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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27
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Brillas E, Farnia G, Severin M, Vianello E. Self-protonation effects in the electrochemical reduction mechanism of p-nitrobenzoic acid. Electrochim Acta 1986. [DOI: 10.1016/0013-4686(86)85004-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.7] [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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Farnia G, Sansona' G, Vianello E. Homogeneous electrocatalysis. Reactivity of short-lived free radicals towards organic substrates. J Electroanal Chem (Lausanne) 1980. [DOI: 10.1016/s0022-0728(80)80473-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Roffia S, Vianello E. A hanging mercury drop electrode refillable from an external reservoir. J Electroanal Chem (Lausanne) 1969. [DOI: 10.1016/s0022-0728(69)80207-x] [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: 10/24/2022]
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38
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Roffia S, Vianello E. A drop volume method for the determination of the equilibrium interfacial tension by means of the hanging mercury drop electrode. J Electroanal Chem (Lausanne) 1968. [DOI: 10.1016/s0022-0728(68)80026-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Corvaja C, Farnia O, Vianello E. Kinetics of decay of nitrophenol radical anions and reduction mechanism of nitrophenols in aqueous alkaline media. Electrochim Acta 1966. [DOI: 10.1016/0013-4686(66)87069-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Saveant J, Vianello E. Potential-sweep chronoamperometry: Kinetic currents for first-order chemical reaction parallel to electron-transfer process (catalytic currents). Electrochim Acta 1965. [DOI: 10.1016/0013-4686(65)80003-2] [Citation(s) in RCA: 285] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Savéant J, Vianello E. Potential-sweep chronoamperometry theory of kinetic currents in the case of a first order chemical reaction preceding the electron-transfer process. Electrochim Acta 1963. [DOI: 10.1016/0013-4686(62)87046-7] [Citation(s) in RCA: 141] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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