1
|
Vasuri F, Lisi AP, Ciavarella C, Degiovanni A, Fabbrizio B, Valente S, Vischini G, La Manna G, D'Errico A, Pasquinelli G. Caveolin-1 in situ expression in glomerular and peritubular capillaries as a marker of ultrastructural progression and severity of renal thrombotic microangiopathy. J Nephrol 2023; 36:2327-2333. [PMID: 37480399 DOI: 10.1007/s40620-023-01645-5] [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: 11/12/2022] [Accepted: 04/06/2023] [Indexed: 07/24/2023]
Abstract
BACKGROUND Thrombotic microangiopathy is a severe and potentially life-threatening condition inducing severe endothelial injury in many organs, particularly native and transplanted kidneys. Current pathological studies by our group have identified the use of Caveolin-1 immunohistochemistry as a potential marker of endothelial damage and progression degree of thrombotic microangiopathy. The aim of the present work was to evaluate Caveolin-1 as a marker of severity in thrombotic microangiopathy kidney disease, according to the ultrastructural progression of the disease evaluated by transmission electron microscopy. MATERIALS AND METHODS Twenty-nine patients (17 non-transplanted and 12 transplanted) were retrospectively selected, biopsied for suspected or histologically-confirmed thrombotic microangiopathy. Transmission electron microscopy was performed in all cases, and an ultrastructural score of thrombotic microangiopathy-related glomerular disease was assessed (from 0 to 3+). Immunohistochemistry for Caveolin-1 was automatically performed. RESULTS The mean percentage of Caveolin-1-positive glomerular capillaries was 53.2 ± 40.6% and 28.0 ± 42.8% in the active thrombotic microangiopathy versus previous thrombotic microangiopathy cases (p = 0.085), considering both native and transplanted kidneys. The presence of progressive disease correlated with diffuse Caveolin-1 immunoreactivity (p = 0.031), and ultrastructural score correlated with glomerular Caveolin-1 positivity, progressively increasing from 22.5% of the Score 0 group to 95.5% of the Score 3 group (p = 0.036). DISCUSSION Caveolin-1 proved to be a very useful marker of early endothelial damage in the course of thrombotic microangiopathy for both native and transplanted kidneys, therefore worth considering in routine practice. Diffuse glomerular Caveolin-1 immunoreactivity correlates with the severity of the thrombotic disease and it can appear very early, even before ultrastructurally evident endothelial damage.
Collapse
Affiliation(s)
- Francesco Vasuri
- Pathology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Albertoni 15, Bologna, Italy.
| | - Anthony P Lisi
- Department of Pharmacology and Physiology, Drexel University College of Medicine, 245 N. 15th Street, Philadelphia, PA, 19102, USA
| | - Carmen Ciavarella
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
| | - Alessio Degiovanni
- Pathology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Albertoni 15, Bologna, Italy
| | - Benedetta Fabbrizio
- Pathology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Albertoni 15, Bologna, Italy
| | - Sabrina Valente
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
| | - Gisella Vischini
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
| | - Gaetano La Manna
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
| | - Antonia D'Errico
- Pathology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Albertoni 15, Bologna, Italy
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
| | - Gianandrea Pasquinelli
- Pathology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Albertoni 15, Bologna, Italy
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
| |
Collapse
|
2
|
Astolfi G, Ciavarella C, Valente S, Coslovi C, Iannetta D, Fontana L, Pasquinelli G, Versura P. Human glial müller and umbilical vein endothelial cell coculture as an in vitro model to investigate retinal oxidative damage. A morphological and molecular assessment. Microsc Res Tech 2023; 86:439-451. [PMID: 36579625 DOI: 10.1002/jemt.24284] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 11/29/2022] [Accepted: 12/17/2022] [Indexed: 12/30/2022]
Abstract
The aim of this study was to optimize a coculture in vitro model established between the human Müller glial cells and human umbilical vein endothelial cells, mimicking the inner blood-retinal barrier, and to explore its resistance to damage induced by oxidative stress. A spontaneously immortalized human Müller cell line MIO-M1 and human umbilical vein endothelial cells (HUVEC) were plated together at a density ratio 1:1 and maintained up to the 8th passage (p8). The MIO-M1/HUVECs p1 through p8 were treated with increasing concentrations (range 200-800 μM) of H2 O2 to evaluate oxidative stress induced damage and comparing data with single cell cultures. The following features were assayed p1 through p8: doubling time maintenance, cell viability using MTS assay, ultrastructure of cell-cell contacts, immunofluorescence for Vimentin and GFAP, molecular biology (q-PCR) for GFAP and CD31 mRNA. MIO-M1/HUVECs cocultures maintained distinct cell cytotype up to p8 as shown by flow cytometry analysis, without evidence of cross activation, displaying cell-cell tight junctions mimicking those found in human retina, only acquiring a slight resistance to oxidative stress induction over the passages. This MIO-M1/HUVECs coculture represents a simple, reproducible and affordable model for in vitro studies on oxidative stress-induced retinal damages.
Collapse
Affiliation(s)
- Gloria Astolfi
- Ophthalmology Unit, DIMES, Alma Mater Studiorum Università di Bologna, Italy
| | - Carmen Ciavarella
- Laboratory of Clinical Pathology, Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Italy
| | - Sabrina Valente
- Laboratory of Clinical Pathology, Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Italy
| | - Chiara Coslovi
- Ophthalmology Unit, DIMES, Alma Mater Studiorum Università di Bologna, Italy
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Italy
| | - Danilo Iannetta
- Ophthalmology Unit, DIMES, Alma Mater Studiorum Università di Bologna, Italy
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Italy
| | - Luigi Fontana
- Ophthalmology Unit, DIMES, Alma Mater Studiorum Università di Bologna, Italy
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Italy
| | - Gianandrea Pasquinelli
- Laboratory of Clinical Pathology, Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Italy
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Italy
| | - Piera Versura
- Ophthalmology Unit, DIMES, Alma Mater Studiorum Università di Bologna, Italy
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Italy
| |
Collapse
|
3
|
Valente S, Ciavarella C, Astolfi G, Bergantin E, Curti N, Buzzi M, Fontana L, Versura P. Impact of Freeze-Drying on Cord Blood (CB), Serum (S), and Platelet-Rich Plasma (CB-PRP) Preparations on Growth Factor Content and In Vitro Cell Wound Healing. Int J Mol Sci 2022; 23:ijms231810701. [PMID: 36142617 PMCID: PMC9503903 DOI: 10.3390/ijms231810701] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/02/2022] [Accepted: 09/09/2022] [Indexed: 11/16/2022] Open
Abstract
Blood-based preparations are used in clinical practice for the treatment of several eye disorders. The aim of this study is to analyze the effect of freeze-drying blood-based preparations on the levels of growth factors and wound healing behaviors in an in vitro model. Platelet-rich plasma (PRP) and serum (S) preparations from the same Cord Blood (CB) sample, prepared in both fresh frozen (FF) and freeze-dried (FD) forms (and then reconstituted), were analyzed for EGF and BDNF content (ELISA Quantikine kit). The human MIO-M1 glial cell line (Moorfield/Institute of Ophthalmology, London, UK) was incubated with FF and FD products and evaluated for cell migration with scratch-induced wounding (IncuCyte S3 Essen BioScience), proliferation with cyclin A2 and D1 gene expression, and activation with vimentin and GFAP gene expression. The FF and FD forms showed similar concentrations of EGF and BDNF in both the S and PRP preparations. The wound healing assay showed no significant difference between the FF and FD forms for both S and PRP. Additionally, cell migration, proliferation, and activation did not appear to change in the FD forms compared to the FF ones. Our study showed that reconstituted FD products maintained the growth factor concentrations and biological properties of FF products and could be used as a functional treatment option.
Collapse
Affiliation(s)
- Sabrina Valente
- DIMES, Alma Mater Studiorum University of Bologna, 40138 Bologna, Italy; (S.V.); (C.C.)
- Center for Applied Biomedical Research (CRBA), Alma Mater Studiorum University of Bologna, 40138 Bologna, Italy;
| | - Carmen Ciavarella
- DIMES, Alma Mater Studiorum University of Bologna, 40138 Bologna, Italy; (S.V.); (C.C.)
- Center for Applied Biomedical Research (CRBA), Alma Mater Studiorum University of Bologna, 40138 Bologna, Italy;
| | - Gloria Astolfi
- Center for Applied Biomedical Research (CRBA), Alma Mater Studiorum University of Bologna, 40138 Bologna, Italy;
- Ophthalmology Unit, DIMES, Alma Mater Studiorum University of Bologna, 40138 Bologna, Italy;
| | - Elisa Bergantin
- IRCCS Azienda Ospedaliero Universitaria di Bologna, 40138 Bologna, Italy; (E.B.); (M.B.)
| | - Nico Curti
- eDIMES Lab, DIMES, Alma Mater Studiorum University of Bologna, 40138 Bologna, Italy;
| | - Marina Buzzi
- IRCCS Azienda Ospedaliero Universitaria di Bologna, 40138 Bologna, Italy; (E.B.); (M.B.)
| | - Luigi Fontana
- Ophthalmology Unit, DIMES, Alma Mater Studiorum University of Bologna, 40138 Bologna, Italy;
- IRCCS Azienda Ospedaliero Universitaria di Bologna, 40138 Bologna, Italy; (E.B.); (M.B.)
| | - Piera Versura
- Center for Applied Biomedical Research (CRBA), Alma Mater Studiorum University of Bologna, 40138 Bologna, Italy;
- Ophthalmology Unit, DIMES, Alma Mater Studiorum University of Bologna, 40138 Bologna, Italy;
- IRCCS Azienda Ospedaliero Universitaria di Bologna, 40138 Bologna, Italy; (E.B.); (M.B.)
- Correspondence:
| |
Collapse
|
4
|
Ciavarella C, Valente S, Pasquinelli G. The Characteristics and Survival Potential Under Sub-lethal Stress of Mesenchymal Stromal/Stem Cells Isolated from the Human Vascular Wall. Stem Cells 2022; 40:1071-1077. [PMID: 36099050 PMCID: PMC9806765 DOI: 10.1093/stmcls/sxac066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 08/30/2022] [Indexed: 01/05/2023]
Abstract
Mesenchymal stromal/stem cells (MSCs) have been identified in multiple human tissues, including the vascular wall. High proliferative potential, multilineage, and immunomodulatory properties make vascular MSCs promising candidates for regenerative medicine. Indeed, their location is strategic for controlling vascular and extra-vascular tissue homeostasis. However, the clinical application of MSCs, and in particular vascular MSCs, is still challenging. Current studies are focused on developing strategies to improve MSC therapeutic applications, like priming MSCs with stress conditions (hypoxia, nutrient deprivation) to achieve a higher therapeutic potential. The goal of the present study is to review the main findings regarding the MSCs isolated from the human vascular wall. Further, the main priming strategies tested on MSCs from different sources are reported, together with the experience on vascular MSCs isolated from healthy cryopreserved and pathological arteries. Stress induction can be a priming approach able to improve MSC effectiveness through several mechanisms that are discussed in this review. Nevertheless, these issues have not been completely explored in vascular MSCs and potential side effects need to be investigated.
Collapse
Affiliation(s)
| | - Sabrina Valente
- Corresponding author: Sabrina Valente, PhD, DIMES - Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Via Massarenti, 9, 40138 Bologna, Italy. Tel: +39 0512144520;
| | - Gianandrea Pasquinelli
- DIMES - Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy,Subcellular Nephro-Vascular Diagnostic Program, Pathology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| |
Collapse
|
5
|
Vasuri F, Germinario G, Ciavarella C, Carroli M, Motta I, Valente S, Cescon M, D’Errico A, Pasquinelli G, Ravaioli M. Trophism and Homeostasis of Liver Sinusoidal Endothelial Graft Cells during Preservation, with and without Hypothermic Oxygenated Perfusion. Biology (Basel) 2022; 11:biology11091329. [PMID: 36138808 PMCID: PMC9495341 DOI: 10.3390/biology11091329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/31/2022] [Accepted: 09/05/2022] [Indexed: 11/16/2022]
Abstract
The aim of the present study was to evaluate the homeostasis and trophism of liver sinusoidal endothelial cells (LSECs) in vivo in different stages of liver graft donation, in order to understand the effects of graft ischemia and perfusion on LSEC activity in liver grafts. Special attention was paid to grafts that underwent hypothermic oxygenated perfusion (HOPE). Forty-seven donors were prospectively enrolled, and two distinct biopsies were performed in each case: one allocation biopsy (at the stage of organ allocation) and one post-perfusion biopsy, performed after graft implant in the recipients. In all biopsies, immunohistochemistry and RT-PCR analyses were carried out for the endothelial markers CD34, ERG, Nestin, and VEGFR-2. We observed an increase in CD34 immunoreactivity in LSEC during the whole preservation/perfusion period (p < 0.001). Nestin and ERG expression was low in allocation biopsies, but increased in post-perfusion biopsies, in both immunohistochemistry and RT-PCR (p < 0.001). An inverse correlation was observed between ERG positivity and donor age. Our results indicate that LSEC trophism is severely depressed in liver grafts, but it is restored after reperfusion in standard conditions. The execution of HOPE seems to improve this recovery, confirming the effectiveness of this machine perfusion technique in restoring endothelial functions.
Collapse
Affiliation(s)
- Francesco Vasuri
- Pathology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Albertoni 15, 40138 Bologna, Italy
| | - Giuliana Germinario
- Department of General Surgery and Transplantation, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Albertoni 15, 40138 Bologna, Italy
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, 40138 Bologna, Italy
| | - Carmen Ciavarella
- Clinical Pathology, Experimental, Diagnostic and Specialty Medicine Department (DIMES), University of Bologna, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Albertoni 15, 40138 Bologna, Italy
| | - Michele Carroli
- Pathology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Albertoni 15, 40138 Bologna, Italy
| | - Ilenia Motta
- Clinical Pathology, Experimental, Diagnostic and Specialty Medicine Department (DIMES), University of Bologna, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Albertoni 15, 40138 Bologna, Italy
| | - Sabrina Valente
- Clinical Pathology, Experimental, Diagnostic and Specialty Medicine Department (DIMES), University of Bologna, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Albertoni 15, 40138 Bologna, Italy
| | - Matteo Cescon
- Department of General Surgery and Transplantation, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Albertoni 15, 40138 Bologna, Italy
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, 40138 Bologna, Italy
| | - Antonia D’Errico
- Pathology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Albertoni 15, 40138 Bologna, Italy
| | - Gianandrea Pasquinelli
- Clinical Pathology, Experimental, Diagnostic and Specialty Medicine Department (DIMES), University of Bologna, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Albertoni 15, 40138 Bologna, Italy
| | - Matteo Ravaioli
- Department of General Surgery and Transplantation, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Albertoni 15, 40138 Bologna, Italy
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, 40138 Bologna, Italy
- Correspondence: ; Tel.: +39-051-214-4810
| |
Collapse
|
6
|
Valente S, Ciavarella C, Hernández-Aguilera A, Salvador FA, Buzzi M, Joven J, Pasquinelli G. Phenotypic, morphological, and metabolic characterization of vascular-spheres from human vascular mesenchymal stem cells. Microsc Res Tech 2021; 85:447-459. [PMID: 34448515 PMCID: PMC9290655 DOI: 10.1002/jemt.23918] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 07/15/2021] [Accepted: 07/31/2021] [Indexed: 01/01/2023]
Abstract
The ability to form spheroids under non‐adherent conditions is a well‐known property of human mesenchymal stem cells (hMSCs), in addition to stemness and multilineage differentiation features. In the present study, we tested the ability of hMSCs isolated from the vascular wall (hVW‐MSCs) to grow as spheres, and provide a characterization of this 3D model. hVW‐MSCs were isolated from femoral arteries through enzymatic digestion. Spheres were obtained using ultra‐low attachment and hanging drop methods. Immunophenotype and pluripotent genes (SOX‐2, OCT‐4, NANOG) were analyzed by immunocytochemistry and real‐time PCR, respectively. Spheres histological and ultrastructural architecture were examined. Cell viability and proliferative capacity were measured using LIVE/DEATH assay and ki‐67 proliferation marker. Metabolomic profile was obtained with liquid chromatography–mass spectrometry. In 2D, hVW‐MSCs were spindle‐shaped, expressed mesenchymal antigens, and displayed mesengenic potential. 3D cultures of hVW‐MSCs were CD44+, CD105low, CD90low, exhibited a low propensity to enter the cell cycle as indicated by low percentage of ki‐67 expression and accumulated intermediate metabolites pointing to slowed metabolism. The 3D model of hVW‐MSCs exhibits stemness, dormancy and slow metabolism, typically observed in stem cell niches. This culture strategy can represent an accurate model to investigate hMSCs features for future clinical applications in the vascular field.
Collapse
Affiliation(s)
- Sabrina Valente
- DIMES - Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Carmen Ciavarella
- DIMES - Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Anna Hernández-Aguilera
- Unitat de Recerca Biomèdica, Hospital Universitari de Sant Joan, IISPV, Universitat Rovira i Virgili, Reus, Spain.,Campus of International Excellence Southern Catalonia, Tarragona, Spain
| | - Fernández-Arroyo Salvador
- Unitat de Recerca Biomèdica, Hospital Universitari de Sant Joan, IISPV, Universitat Rovira i Virgili, Reus, Spain.,Campus of International Excellence Southern Catalonia, Tarragona, Spain
| | - Marina Buzzi
- Emilia Romagna Cord Blood Bank - Transfusion Service, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Jorge Joven
- Unitat de Recerca Biomèdica, Hospital Universitari de Sant Joan, IISPV, Universitat Rovira i Virgili, Reus, Spain.,Campus of International Excellence Southern Catalonia, Tarragona, Spain
| | - Gianandrea Pasquinelli
- DIMES - Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy.,Subcellular Nephro-Vascular Diagnostic Program, Pathology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| |
Collapse
|
7
|
Collura S, Ciavarella C, Morsiani C, Motta I, Valente S, Gallitto E, Abualhin M, Pini R, Vasuri F, Franceschi C, Capri M, Gargiulo M, Pasquinelli G. MicroRNA profiles of human peripheral arteries and abdominal aorta in normal conditions: MicroRNAs-27a-5p, -139-5p and -155-5p emerge and in atheroma too. Mech Ageing Dev 2021; 198:111547. [PMID: 34329656 DOI: 10.1016/j.mad.2021.111547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 07/12/2021] [Accepted: 07/22/2021] [Indexed: 10/20/2022]
Abstract
Atherosclerosis may starts early in life and each artery has peculiar characteristics likely affecting atherogenesis. The primary objective of the work was to underpin the microRNA (miR)-profiling differences in human normal femoral, abdominal aortic, and carotid arteries. The secondary aim was to investigate if those identified miRs, differently expressed in normal conditions, may also have a role in atherosclerotic arteries at adult ages. MiR-profiles were performed on normal tissues, revealing that aorta and carotid arteries are more similar than femoral arteries. MiRs emerging from profiling comparisons, i.e., miR-155-5p, -27a-5p, and -139-5p, were subjected to validation by RT-qPCR in normal arteries and also in pathological/atheroma counterparts, considering all the available 20 artery specimens. The three miRs were confirmed to be differentially expressed in normal femoral vs aorta/carotid arteries. Differential expression of those miRs was also observed in atherosclerotic arteries, together with some miR-target proteins, such as vimentin, CD44, E-cadherin and an additional marker SLUG. The different expression of miRs and targets/markers suggests that aorta/carotid and femoral arteries differently activate molecular drivers of pathological condition, thus conditioning the morphology of atheroma in adult life and likely suggesting the future use of artery-specific treatment to counteract atherosclerosis.
Collapse
Affiliation(s)
- Salvatore Collura
- DIMES-Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Carmen Ciavarella
- DIMES-Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Cristina Morsiani
- DIMES-Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Ilenia Motta
- DIMES-Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Sabrina Valente
- DIMES-Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - Enrico Gallitto
- Unit of Vascular Surgery, IRCCS, Policlinico S. Orsola Hospital, Bologna, Italy
| | - Mohammad Abualhin
- Unit of Vascular Surgery, IRCCS, Policlinico S. Orsola Hospital, Bologna, Italy
| | - Rodolfo Pini
- Unit of Vascular Surgery, IRCCS, Policlinico S. Orsola Hospital, Bologna, Italy
| | - Francesco Vasuri
- Unit of Pathology, IRCCS, Policlinico S. Orsola Hospital, Bologna, Italy
| | - Claudio Franceschi
- DIMES-Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy; Department of Applied Mathematics of the Institute of ITMM, National Research Lobachevsky State University of Nizhny Novgorod, Russian Federation
| | - Miriam Capri
- DIMES-Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy; Interdepartmental Center - Alma Mater Research Institute on Global Challenges and Climate Change - University of Bologna, Bologna, Italy
| | - Mauro Gargiulo
- DIMES-Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy; Unit of Vascular Surgery, IRCCS, Policlinico S. Orsola Hospital, Bologna, Italy
| | - Gianandrea Pasquinelli
- DIMES-Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy; Subcellular Nephro-Vascular Diagnostic Program, Pathology Unit, IRCCS, Policlinico S. Orsola Hospital, Bologna, Italy
| |
Collapse
|
8
|
Mauro R, Rocchi C, Vasuri F, Pini A, Croci Chiocchini AL, Ciavarella C, La Manna G, Pasquinelli G, Faggioli G, Gargiulo M. Tissue Ki67 proliferative index expression and pathological changes in hemodialysis arteriovenous fistulae: Preliminary single-center results. J Vasc Access 2021; 24:391-396. [PMID: 34308698 DOI: 10.1177/11297298211015495] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Arteriovenous fistula (AVF) for hemodialysis integrates outward remodeling with vessel wall thickening in response to drastic hemodynamic changes. Aim of this study is to determine the role of Ki67, a well-established proliferative marker, related to AVF, and its relationship with time-dependent histological morphologic changes. MATERIALS AND METHODS All patients were enrolled in 1 year and stratified in two groups: (A) pre-dialysis patients submitted to first AVF and (B) patients submitted to revision of AVF. Morphological changes: neo-angiogenesis (NAG), myointimal thickening (MIT), inflammatory infiltrate (IT), and aneurysmatic fistula degeneration (AD). The time of AVF creation was recorded. A biopsy of native vein in Group A and of arterialized vein in Group B was submitted to histological and immunohistochemical (IHC) analysis. IHC for Ki67 was automatically performed in all specimens. Ki67 immunoreactivity was assessed as the mean number of positive cells on several high-power fields, counted in the hot spots. RESULTS A total of 138 patients were enrolled, 69 (50.0%) Group A and 69 (50.0%) Group B. No NAG or MIT were found in Group A. Seven (10.1%) Group A veins showed a mild MIT. Analyzing the Group B, a moderate-to-severe MIT was present in 35 (50.7%), IT in 19 (27.5%), NAG in 37 (53.6%); AD was present in 10 (14.5%). All AVF of Group B with the exception of one (1.4%) showed a positivity for Ki67, with a mean of 12.31 ± 13.79 positive cells/hot spot (range 0-65). Ki67-immunoreactive cells had a subendothelial localization in 23 (33.3%) cases, a myointimal localization in SMC in 35 (50.7%) cases. The number of positive cells was significantly correlated with subendothelial localization of Ki67 (p = 0.001) and with NA (p = 0.001). CONCLUSIONS Native veins do not contain cycling cells. In contrast, vascular cell proliferation starts immediately after AVF creation and persists independently of the time the fistula is set up. The amount of proliferating cells is significantly associated with MIT and subendothelial localization of Ki67-immunoreactive cells, thus suggesting a role of Ki-67 index in predicting AVF failure.
Collapse
Affiliation(s)
- Raffaella Mauro
- Department of Specialty, Diagnostic and Experimental Medicine, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Cristina Rocchi
- Department of Specialty, Diagnostic and Experimental Medicine, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Francesco Vasuri
- Department of Specialty, Diagnostic and Experimental Medicine, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Alessia Pini
- Department of Specialty, Diagnostic and Experimental Medicine, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Anna Laura Croci Chiocchini
- Department of Specialty, Diagnostic and Experimental Medicine, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Carmen Ciavarella
- Department of Specialty, Diagnostic and Experimental Medicine, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Gaetano La Manna
- Department of Specialty, Diagnostic and Experimental Medicine, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Gianandrea Pasquinelli
- Department of Specialty, Diagnostic and Experimental Medicine, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Gianluca Faggioli
- Department of Specialty, Diagnostic and Experimental Medicine, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Mauro Gargiulo
- Department of Specialty, Diagnostic and Experimental Medicine, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| |
Collapse
|
9
|
Vasuri F, Ciavarella C, Collura S, Mascoli C, Valente S, Degiovanni A, Gargiulo M, Capri M, Pasquinelli G. Adventitial Microcirculation Is a Major Target of SARS-CoV-2-Mediated Vascular Inflammation. Biomolecules 2021; 11:biom11071063. [PMID: 34356687 PMCID: PMC8301851 DOI: 10.3390/biom11071063] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 07/14/2021] [Accepted: 07/15/2021] [Indexed: 11/21/2022] Open
Abstract
We report the case of a 77-year-old woman affected by coronavirus disease-19 (COVID-19) who developed an occlusive arterial disease of the lower limb requiring a left leg amputation. We studied the mechanisms of vascular damage by SARS-CoV-2 by means of a comprehensive multi-technique in situ analysis on the diseased popliteal arterial district, including immunohistochemistry (IHC), transmission electron microscopy (TEM) and miRNA analysis. At histological analyses, we observed a lymphocytic inflammatory infiltrate, oedema and endothelialitis of adventitial vasa vasorum while the media was normal and the intima had only minor changes. The vasa vasorum expressed the ACE2 receptor and factor VIII; compared with the controls, VEGFR2 staining was reduced. TEM analyses showed endothelial injury and numerous Weibel–Palade bodies in the cytoplasm. No coronavirus particle was seen. IL-6 protein and mRNA, together with miR-155-5p and miRs-27a-5p, which can target IL-6, were significantly increased compared with that in the controls. Our case report suggests an involvement of adventitial artery microcirculation by inflammation in the course of COVID-19. Without evident signs of current infection by SARS-CoV-2, endothelial cells show a spectrum of structural and functional alterations that can fuel the cardiovascular complications observed in people infected with SARS-CoV-2.
Collapse
Affiliation(s)
- Francesco Vasuri
- Pathology Unit, IRCCS, Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy; (F.V.); (A.D.); (G.P.)
| | - Carmen Ciavarella
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, 40138 Bologna, Italy; (S.C.); (S.V.); (M.C.)
- Correspondence: ; Tel.: +39-0512144520
| | - Salvatore Collura
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, 40138 Bologna, Italy; (S.C.); (S.V.); (M.C.)
| | - Chiara Mascoli
- Vascular Surgery Unit, IRCCS, Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy; (C.M.); (M.G.)
| | - Sabrina Valente
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, 40138 Bologna, Italy; (S.C.); (S.V.); (M.C.)
| | - Alessio Degiovanni
- Pathology Unit, IRCCS, Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy; (F.V.); (A.D.); (G.P.)
| | - Mauro Gargiulo
- Vascular Surgery Unit, IRCCS, Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy; (C.M.); (M.G.)
| | - Miriam Capri
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, 40138 Bologna, Italy; (S.C.); (S.V.); (M.C.)
- Interdepartmental Center “Alma Mater Research Institute on Global Challenges and Climate Change (Alma Climate)”, University of Bologna, 40126 Bologna, Italy
| | - Gianandrea Pasquinelli
- Pathology Unit, IRCCS, Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy; (F.V.); (A.D.); (G.P.)
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, 40138 Bologna, Italy; (S.C.); (S.V.); (M.C.)
| |
Collapse
|
10
|
Vasuri F, Valente S, Motta I, Degiovanni A, Ciavarella C, Pasquinelli G. ETS-Related Gene Expression in Healthy Femoral Arteries With Focal Calcifications. Front Cell Dev Biol 2021; 9:623782. [PMID: 34222223 PMCID: PMC8242207 DOI: 10.3389/fcell.2021.623782] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 05/18/2021] [Indexed: 11/13/2022] Open
Abstract
Bone development-related genes are enriched in healthy femoral arteries, which are more prone to calcification, as documented by the predominance of fibrocalcific plaques at the femoral location. We undertook a prospective histological study on the presence of calcifications in normal femoral arteries collected from donors. Since endothelial-to-mesenchymal transition (EndMT) participates in vascular remodeling, immunohistochemical (IHC) and molecular markers of EndMT and chondro-osteogenic differentiation were assessed. Transmission electron microscopy (TEM) was used to describe calcification at its inception. Two hundred and fourteen femoral arteries were enrolled. The mean age of the donors was 39.9 ± 12.9 years; male gender prevailed (M: 128). Histology showed a normal architecture; calcifications were found in 52 (24.3%) cases, without correlations with cardiovascular risk factors. Calcifications were seen on or just beneath the inner elastic lamina (IEL). At IHC, SLUG was increasingly expressed in the wall of focally calcified femoral arteries (FCFA). ETS-related gene (ERG), SLUG, CD44, and SOX-9 were positive in calcifications. RT-PCR showed increased levels of BPM-2, RUNX-2, alkaline phosphatase, and osteocalcin osteogenic transcripts and increased expression of the chondrogenic marker, SOX-9, in FCFA. TEM documented osteoblast-like cells adjacent to the IEL, releasing calcifying vesicles from the cell membrane. The vesicles were embedded in a proteoglycan-rich matrix and were entrapped in IEL fenestrations. In this study, ERG- and CD44-positive cell populations were found in the context of increased SLUG expression, thus supporting the participation of EndMT in FCFA; the increased transcript expression of osteochondrogenic markers, particularly SOX-9, reinforced the view that EndMT, osteochondrogenesis, and neoangiogenesis interact in the process of arterial calcification. Given its role as a transcription factor in the regulation of endothelial homeostasis, arterial ERG expression can be a clue of endothelial dysregulation and changes in IEL organization which can ultimately hinder calcifying vesicle diffusion through the IEL fenestrae. These results may have a broader implication for understanding arterial calcification within a disease context.
Collapse
Affiliation(s)
- Francesco Vasuri
- Pathology Unit, IRCCS, Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Sabrina Valente
- Experimental, Diagnostic and Specialty Medicine Department (DIMES), University of Bologna, Bologna, Italy
| | - Ilenia Motta
- Experimental, Diagnostic and Specialty Medicine Department (DIMES), University of Bologna, Bologna, Italy
| | - Alessio Degiovanni
- Pathology Unit, IRCCS, Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Carmen Ciavarella
- Experimental, Diagnostic and Specialty Medicine Department (DIMES), University of Bologna, Bologna, Italy
| | - Gianandrea Pasquinelli
- Experimental, Diagnostic and Specialty Medicine Department (DIMES), University of Bologna, Bologna, Italy
| |
Collapse
|
11
|
Ciavarella C, Buzzi M, Bergantin E, Di Marco S, Giannaccare G, Campos E, Bisti S, Versura P. Effects of Cord Blood Serum (CBS) on viability of retinal Müller glial cells under in vitro injury. PLoS One 2020; 15:e0234145. [PMID: 32497126 PMCID: PMC7272066 DOI: 10.1371/journal.pone.0234145] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 05/19/2020] [Indexed: 01/11/2023] Open
Abstract
Oxidative stress and inflammation determine retinal ganglion cell degeneration, leading to retinal impairment and vision loss. Müller glial cells regulate retinal repair under injury, through gliosis. Meanwhile, reactive gliosis can turn in pathological effects, contributing to neurodegeneration. In the present study, we tested whether Cord Blood Serum (CBS), rich of growth factors, might improve the viability of Müller cells under in vitro damage. BDNF, NGF, TGF-α, GDNF and EGF levels were measured in CBS samples by Human Magnetic Luminex Assay. CBS effects were evaluated on rat (rMC-1) and human (MIO-M1) Müller cells, under H2O2 and IL-1β damage. Cells grown with FBS or CBS both at 5% were exposed to stress and analyzed in terms of cell viability, GFAP, IL-6 and TNF-α expression. CBS was also administrated after treatment with K252a, inhibitor of the neurotrophin receptor Trk. Cell viability of rMC-1 and MIO-M1 resulted significantly improved when pretreated with CBS and exposed to H2O2 and IL-1β, in comparison to the standard culture with FBS. Accordingly, the gliosis marker GFAP resulted down-regulated following CBS priming. In parallel, we observed a lower expression of the inflammatory mediators in rMC-1 (TNF-α) and MIO-M1 (IL-6, TNF- α), especially in presence of inflammatory damage. Trk inhibition through K252a administration impaired the effects of CBS under stress conditions on MIO-M1 and rMC-1 viability, not significantly different from FBS condition. CBS is enriched with neurotrophins and its administration to rMC-1 and MIO-M1 attenuates the cytotoxic effects of H2O2 and IL-1β. Moreover, the decrease of the main markers of gliosis and inflammation suggests a promising use of CBS for neuroprotection aims. This study is a preliminary basis that prompts future investigations to deeply explore and confirm the CBS potential.
Collapse
Affiliation(s)
- Carmen Ciavarella
- Ophthalmology Unit, DIMES, Alma Mater Studiorum University of Bologna, S.Orsola-Malpighi Teaching Hospital, Bologna, Italy
| | - Marina Buzzi
- Emilia Romagna Cord Blood Bank-Transfusion Service, S.Orsola-Malpighi Teaching Hospital, Bologna, Italy
| | - Elisa Bergantin
- Emilia Romagna Cord Blood Bank-Transfusion Service, S.Orsola-Malpighi Teaching Hospital, Bologna, Italy
| | | | - Giuseppe Giannaccare
- Ophthalmology Unit, DIMES, Alma Mater Studiorum University of Bologna, S.Orsola-Malpighi Teaching Hospital, Bologna, Italy
| | - Emilio Campos
- Ophthalmology Unit, DIMES, Alma Mater Studiorum University of Bologna, S.Orsola-Malpighi Teaching Hospital, Bologna, Italy
| | - Silvia Bisti
- Vision Lab, DISCAB, University of L’Aquila, L’Aquila, Italy
- Istituto Italiano di Tecnologia (IIT), Genova, Italy
| | - Piera Versura
- Ophthalmology Unit, DIMES, Alma Mater Studiorum University of Bologna, S.Orsola-Malpighi Teaching Hospital, Bologna, Italy
- * E-mail:
| |
Collapse
|
12
|
Ciavarella C, Motta I, Valente S, Pasquinelli G. Pharmacological (or Synthetic) and Nutritional Agonists of PPAR-γ as Candidates for Cytokine Storm Modulation in COVID-19 Disease. Molecules 2020; 25:molecules25092076. [PMID: 32365556 PMCID: PMC7248959 DOI: 10.3390/molecules25092076] [Citation(s) in RCA: 77] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 04/20/2020] [Accepted: 04/27/2020] [Indexed: 12/25/2022] Open
Abstract
The cytokine storm is an abnormal production of inflammatory cytokines, due to the over-activation of the innate immune response. This mechanism has been recognized as a critical mediator of influenza-induced lung disease, and it could be pivotal for COVID-19 infections. Thus, an immunomodulatory approach targeting the over-production of cytokines could be proposed for viral aggressive pulmonary disease treatment. In this regard, the peroxisome proliferator-activated receptor (PPAR)-γ, a member of the PPAR transcription factor family, could represent a potential target. Beside the well-known regulatory role on lipid and glucose metabolism, PPAR-γ also represses the inflammatory process. Similarly, the PPAR-γ agonist thiazolidinediones (TZDs), like pioglitazone, are anti-inflammatory drugs with ameliorating effects on severe viral pneumonia. In addition to the pharmacological agonists, also nutritional ligands of PPAR-γ, like curcuma, lemongrass, and pomegranate, possess anti-inflammatory properties through PPAR-γ activation. Here, we review the main synthetic and nutritional PPAR-γ ligands, proposing a dual approach based on the strengthening of the immune system using pharmacological and dietary strategies as an attempt to prevent/treat cytokine storm in the case of coronavirus infection.
Collapse
|
13
|
Pini R, Ciavarella C, Faggioli G, Gallitto E, Indelicato G, Fenelli C, Mascoli C, Vacirca A, Gargiulo M, Pasquinelli G. Different Drugs Effect on Mesenchymal Stem Cells Isolated From Abdominal Aortic Aneurysm. Ann Vasc Surg 2020; 67:490-496. [PMID: 32173476 DOI: 10.1016/j.avsg.2020.03.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 03/04/2020] [Accepted: 03/06/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Abdominal aortic aneurysm (AAA) is a progressive dilation of the aortic wall, determined by the unbalanced activity of matrix metalloproteinase (MMPs). In vitro and in vivo studies support the pivotal role of MMP-9 to AAA pathogenesis. In our experience, we elucidated the expression of MMP-9 in an ex vivo model of human mesenchymal stem cells isolated from AAA specimen (AAA-MSCs). Thus, MMP-9 inhibition could be an attractive therapeutic strategy for inhibiting AAA degeneration and rupture. Our study was aimed at testing the effect of 3 different drugs (pioglitazone, doxycycline, simvastatin) on MMP-9 and peroxisome proliferator-activated receptor (PPAR)-γ expression in AAA-MSCs. METHODS Aneurysmal aortic wall segments were taken from AAA patients after the open surgical treatment. MSCs were isolated from AAA (n = 20) tissues through enzymatic digestion. AAA-MSCs were exposed to different doses of pioglitazone (5-10-25 μM), doxycycline (10-25 μM), and simvastatin (10 μM) for 24 h. The effect of each drug was evaluated in terms of cell survival, by crystal violet stain. MMP-9 and PPAR-γ mRNA were analyzed using real-time PCR. RESULTS AAA-MSCs were not affected by the exposure to the selected drugs, as shown by the analysis of cell viability. Interestingly, MMP-9 mRNA resulted significantly decreased after each treatment, recording a downregulation of 50% in presence of pioglitazone, 90% with doxycycline, and 40% with exposed to simvastatin, in comparison to untreated cells. We further analyzed the expression of PPAR-γ, target of pioglitazone, observing an upregulation in exposed AAA-MSCs to controls. CONCLUSIONS Our data support the potential therapeutic effect of pioglitazone, doxycycline, and simvastatin on AAA by reducing the MMP-9 expression in a patient-specific model (AAA-MSCs). In addition, pioglitazone drives the increase of PPAR-G, another promising target for AAA therapy. Further studies are necessary to elucidate the mechanism driving this inhibitory pathway, which can reduces the mortality risk associated with AAA rupture.
Collapse
Affiliation(s)
- Rodolfo Pini
- Vascular Surgery, Department of Experimental, Diagnostic and Speciality Medicine (DIMES), University of Bologna, Bologna, Italy.
| | - Carmen Ciavarella
- Clinical Pathology, Department of Experimental, Diagnostic and Speciality Medicine (DIMES), University of Bologna, Bologna, Italy
| | - Gianluca Faggioli
- Vascular Surgery, Department of Experimental, Diagnostic and Speciality Medicine (DIMES), University of Bologna, Bologna, Italy
| | - Enrico Gallitto
- Vascular Surgery, Department of Experimental, Diagnostic and Speciality Medicine (DIMES), University of Bologna, Bologna, Italy
| | - Giuseppe Indelicato
- Vascular Surgery, Department of Experimental, Diagnostic and Speciality Medicine (DIMES), University of Bologna, Bologna, Italy
| | - Cecilia Fenelli
- Vascular Surgery, Department of Experimental, Diagnostic and Speciality Medicine (DIMES), University of Bologna, Bologna, Italy
| | - Chiara Mascoli
- Vascular Surgery, Department of Experimental, Diagnostic and Speciality Medicine (DIMES), University of Bologna, Bologna, Italy
| | - Andrea Vacirca
- Vascular Surgery, Department of Experimental, Diagnostic and Speciality Medicine (DIMES), University of Bologna, Bologna, Italy
| | - Mauro Gargiulo
- Vascular Surgery, Department of Experimental, Diagnostic and Speciality Medicine (DIMES), University of Bologna, Bologna, Italy
| | - Gianandrea Pasquinelli
- Clinical Pathology, Department of Experimental, Diagnostic and Speciality Medicine (DIMES), University of Bologna, Bologna, Italy
| |
Collapse
|
14
|
Ciavarella C, Buzzi M, Bergantin E, Coslovi C, Di Marco S, Bisti S, Campos E, Versura P. Cord blood serum (CBS) reduces the expression of GFAP and inflammatory cytokines in retinal Muller cells under stress damage. Acta Ophthalmol 2019. [DOI: 10.1111/j.1755-3768.2019.5114] [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: 11/28/2022]
Affiliation(s)
| | - Marina Buzzi
- Emilia Romagna Cord Blood Bank‐Transfusion Service S. Orsola‐Malpighi Teaching Hospital Bologna Italy
| | - Elisa Bergantin
- Emilia Romagna Cord Blood Bank‐Transfusion Service S. Orsola‐Malpighi Teaching Hospital Bologna Italy
| | - Chiara Coslovi
- Ophthalmology Unit DIMES ‐ University of Bologna and S.Orsola Malpighi Teaching Hospital Bologna Italy
| | | | - Silvia Bisti
- Vision Lab, DISCAB University of L’Aquila L’Aquila Italy
| | - Emilio Campos
- Ophthalmology Unit DIMES ‐ University of Bologna and S.Orsola Malpighi Teaching Hospital Bologna Italy
| | - Piera Versura
- Ophthalmology Unit DIMES ‐ University of Bologna and S.Orsola Malpighi Teaching Hospital Bologna Italy
| |
Collapse
|
15
|
Pasanisi E, Ciavarella C, Valente S, Ricci F, Pasquinelli G. Differentiation and plasticity of human vascular wall mesenchymal stem cells, dermal fibroblasts and myofibroblasts: a critical comparison including ultrastructural evaluation of osteogenic potential. Ultrastruct Pathol 2019; 43:261-272. [DOI: 10.1080/01913123.2019.1673863] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Emanuela Pasanisi
- Clinical Pathology, Department of Experimental, Diagnostic and Specialty Medicine, DIMES, University of Bologna, University Hospital, S. Orsola, Bologna, Italy
| | - Carmen Ciavarella
- Clinical Pathology, Department of Experimental, Diagnostic and Specialty Medicine, DIMES, University of Bologna, University Hospital, S. Orsola, Bologna, Italy
| | - Sabrina Valente
- Clinical Pathology, Department of Experimental, Diagnostic and Specialty Medicine, DIMES, University of Bologna, University Hospital, S. Orsola, Bologna, Italy
| | - Francesca Ricci
- Immunohaematology and Transfusion Medicine Service, University Hospital, S. Orsola, Bologna, Italy
| | - Gianandrea Pasquinelli
- Clinical Pathology, Department of Experimental, Diagnostic and Specialty Medicine, DIMES, University of Bologna, University Hospital, S. Orsola, Bologna, Italy
- National Institute for Cardiovascular Research (INRC), University of Bologna, Italy
- National Institute of Biostructures and Biosystems (INBB), Rome, Italy
| |
Collapse
|
16
|
Vasuri F, Ciavarella C, Fittipaldi S, Pini R, Vacirca A, Gargiulo M, Faggioli G, Pasquinelli G. Different histological types of active intraplaque calcification underlie alternative miRNA-mRNA axes in carotid atherosclerotic disease. Virchows Arch 2019; 476:307-316. [PMID: 31506771 DOI: 10.1007/s00428-019-02659-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 08/14/2019] [Accepted: 08/26/2019] [Indexed: 12/11/2022]
Abstract
Arterial calcification is an actively regulated process, with different morphological manifestations. Micro-RNAs emerged as potential regulators of vascular calcification; they may become novel diagnostic tools and be used for a finest staging of the carotid plaque progression. The present study aimed at characterizing the different miRNA-mRNA axes in carotid plaques according to their histological patterns of calcification. Histopathological analysis was performed on 124 retrospective carotid plaques, with clinical data and preoperatory angio-CT. miRNA analysis was carried out with microfluidic cards. Real-time PCR was performed for selected miRNAs validation and for RUNX-2 and SOX-9 mRNA levels. CD31, CD68, SMA, and SOX-9 were analyzed by immunohistochemistry. miRNA levels on HUVEC cells were analyzed for confirming results under in vitro osteogenic conditions. Histopathological analysis revealed two main calcification subtypes of plaques: calcific cores (CC) and protruding nodules (PN). miRNA array and PCR validation of miR-1275, miR-30a-5p, and miR-30d indicated a significant upregulation of miR-30a-5p and miR-30d in the PN plaques. Likewise, the miRNA targets RUNX-2 and SOX-9 resulted poorly expressed in PN plaques. The inverse correlation between miRNA and RUNX-2 levels was confirmed on osteogenic-differentiated HUVEC. miR-30a-5p and miR-30d directly correlated with calcification extension and thickness at angio-CT imaging. Our study demonstrated the presence of two distinct morphological subtypes of calcification in carotid atheromatous plaques, supported by different miRNA signatures, and by different angio-CT features. These results shed the light on the use of miRNA as novel diagnostic markers, suggestive of plaque evolution.
Collapse
Affiliation(s)
- Francesco Vasuri
- Clinical and Surgical Pathology, Department of Specialty, Diagnostic and Experimental Medicine, S.Orsola-Malpighi Hospital, University of Bologna, via Massarenti 9, 40138, Bologna, Italy
| | - Carmen Ciavarella
- Clinical and Surgical Pathology, Department of Specialty, Diagnostic and Experimental Medicine, S.Orsola-Malpighi Hospital, University of Bologna, via Massarenti 9, 40138, Bologna, Italy
| | - Silvia Fittipaldi
- Clinical and Surgical Pathology, Department of Specialty, Diagnostic and Experimental Medicine, S.Orsola-Malpighi Hospital, University of Bologna, via Massarenti 9, 40138, Bologna, Italy
| | - Rodolfo Pini
- Vascular Surgery, Department of Specialty, Diagnostic and Experimental Medicine, S.Orsola-Malpighi Hospital, University of Bologna, via Massarenti 9, Bologna, 40138, Italy
| | - Andrea Vacirca
- Vascular Surgery, Department of Specialty, Diagnostic and Experimental Medicine, S.Orsola-Malpighi Hospital, University of Bologna, via Massarenti 9, Bologna, 40138, Italy
| | - Mauro Gargiulo
- Vascular Surgery, Department of Specialty, Diagnostic and Experimental Medicine, S.Orsola-Malpighi Hospital, University of Bologna, via Massarenti 9, Bologna, 40138, Italy
| | - Gianluca Faggioli
- Vascular Surgery, Department of Specialty, Diagnostic and Experimental Medicine, S.Orsola-Malpighi Hospital, University of Bologna, via Massarenti 9, Bologna, 40138, Italy
| | - Gianandrea Pasquinelli
- Clinical and Surgical Pathology, Department of Specialty, Diagnostic and Experimental Medicine, S.Orsola-Malpighi Hospital, University of Bologna, via Massarenti 9, 40138, Bologna, Italy.
| |
Collapse
|
17
|
Ciavarella C, Gallitto E, Ricci F, Buzzi M, Stella A, Pasquinelli G. The crosstalk between vascular MSCs and inflammatory mediators determines the pro-calcific remodelling of human atherosclerotic aneurysm. Stem Cell Res Ther 2017; 8:99. [PMID: 28446225 PMCID: PMC5406974 DOI: 10.1186/s13287-017-0554-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Revised: 03/21/2017] [Accepted: 04/04/2017] [Indexed: 01/22/2023] Open
Abstract
Background Human mesenchymal stem cells (MSCs) possess well-known reparative abilities, but any defect of the immunomodulatory activity and/or the differentiation process may determine the development of human diseases, including those affecting the vascular wall. MSCs residing within the human aortic wall represent a potential cell mediator of atherosclerotic aneurysm development. Methods MSCs isolated from healthy and aneurysm aortas were characterized by flow cytometer and tested for differentiation properties. Healthy aorta (ha)-MSCs were then subjected to inflammatory stimuli to evaluate the microenvironmental impact on their function and involvement in vascular remodelling. Results Abdominal aortic aneurysm (AAA)-MSCs were isolated from calcified and inflamed aortas of 12 patients with high serum levels of MMP-9 protein. AAA-MSCs expressed typical mesenchymal markers and, in line with the histological analysis, elevated levels of OPN, an osteogenic marker also involved in vascular remodelling. AAA-MSCs were highly osteogenic and underwent intense calcium deposition under proper stimulation; moreover, AAA-MSCs were able to differentiate into tubule-like structures in Matrigel, even if the lack of CD146 and the reduced structural stability suggested an inefficient maturation process. We further demonstrated an association between osteogenesis and inflammation; indeed, ha-MSCs cultured with either cytokines (TNF-α, IL-1β) or AAA-PBMCs showed increased expression of MMP-9 and osteogenic markers, to the detriment of the adipogenic regulator PPAR-γ. Interestingly, the culture with inflammatory cells highly stimulated ha-MSCs towards the osteogenic commitment. Conclusions AAA-MSCs displayed high osteogenic potential and pathological angiogenesis that represent crucial steps for AAA progression; we showed that the inflammatory process critically addresses human vascular MSCs towards a pathological behaviour, inducing vascular bone matrix deposition and remodelling. Inhibition of this pathway may represent a pharmacological approach against arterial calcification. Electronic supplementary material The online version of this article (doi:10.1186/s13287-017-0554-x) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Carmen Ciavarella
- Clinical Pathology-Department of Experimental, Diagnostic and Specialty Medicine (DIMES), S.Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy.
| | - Enrico Gallitto
- Vascular Surgery-Department of Experimental, Diagnostic and Specialty Medicine (DIMES), S.Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Francesca Ricci
- Immunohematology and Transfusion Service, S.Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Marina Buzzi
- Immunohematology and Transfusion Service, S.Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Andrea Stella
- Vascular Surgery-Department of Experimental, Diagnostic and Specialty Medicine (DIMES), S.Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Gianandrea Pasquinelli
- Clinical Pathology-Department of Experimental, Diagnostic and Specialty Medicine (DIMES), S.Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| |
Collapse
|
18
|
Papi A, Govoni M, Ciavarella C, Spisni E, Orlandi M, Farabegoli F. Epigallocatechin-3-gallate Increases RXRγ-mediated Pro-apoptotic and Anti-invasive Effects in Gastrointestinal Cancer Cell Lines. Curr Cancer Drug Targets 2016; 16:373-85. [PMID: 26278714 DOI: 10.2174/1568009615666150817120931] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 07/21/2015] [Accepted: 08/13/2015] [Indexed: 11/22/2022]
Abstract
Molecules with synergistic effects often enhance the benefits of cancer therapy. We observed that the major catechin of green tea, (-)-Epigallocatechin-3-gallate (EGCG), induced retinoid X receptor-γ (RXRγ) expression in the SK-Ch-A1 cholangiocarcinoma cell line and in two colon carcinoma cell lines (LoVo and the derivative multi-drug resistant LoVoMDR). On this basis, we analyzed the effects of EGCG in combination with an RXRγ ligand, 6-OH-11-O-hydroxyphenantrene (IIF), or with a ligand of retinoic acid receptor, all-trans-retinoic acid (RA). IIF alone and in combination with EGCG activated the retinoic X response elements and induced the germ cell nuclear factor. In parallel, EGCG induced 67 kDa laminin receptor expression alone and in combination with IIF. We observed a synergistic growth inhibition with EGCG and IIF in combination at lower doses. These effects were accompanied by apoptosis activation through the mitochondrial pathway. Moreover, in LoVo cell line we observed an induction of Forkhead box O3 expression, another molecule involved in apoptosis activation. Finally, metalloproteinase activity and extracellular matrix metalloproteinase inducer (EMMPRIN) expression were inhibited and tumor cell invasion was strongly reduced in the SK-Ch-A1 cell line after treatment with EGCG and IIF. In conclusion, the use of specific RXR ligands in combination with catechins could open a new perspective in gastrointestinal tumor chemoprevention.
Collapse
Affiliation(s)
- Alessio Papi
- Department of Biological, Geological, and Environmental Science (BiGea), Via Selmi 3, University of Bologna, 40126 Bologna, Italy.
| | | | | | | | | | | |
Collapse
|
19
|
Ciavarella C, Fittipaldi S, Pasquinelli G. CoCl2 Administration to Vascular MSC Cultures as an In Vitro Hypoxic System to Study Stem Cell Survival and Angiogenesis. Methods Mol Biol 2016; 1516:309-317. [PMID: 27052613 DOI: 10.1007/7651_2016_350] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Mesenchymal stem cells (MSCs) possess well-known reparative properties, among which the ability to form neovessels; in vivo, this characteristic is carried out both in a normal and in a pathological setting. Hypoxia, a condition common to many human diseases, is known to promote angiogenesis and to improve stem cell proliferation and differentiation. For this purpose, we provide an experimental protocol to test stem cell viability and angiogenesis under hypoxic conditions, comparing a vascular model of MSCs with stable cell lines. In order to avoid the use of expensive facilities, we propose the application of a chemical hypoxia inducer, cobalt chloride.
Collapse
Affiliation(s)
- Carmen Ciavarella
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES) S.Orsola-Malpighi Hospital, University of Bologna, Via Massarenti, 9, Bologna, 40138, Italy.
| | - Silvia Fittipaldi
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES) S.Orsola-Malpighi Hospital, University of Bologna, Via Massarenti, 9, Bologna, 40138, Italy
| | - Gianandrea Pasquinelli
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES) S.Orsola-Malpighi Hospital, University of Bologna, Via Massarenti, 9, Bologna, 40138, Italy
| |
Collapse
|
20
|
Ciavarella C, Fittipaldi S, Pedrini S, Vasuri F, Gallitto E, Freyrie A, Stella A, Gostjeva E, Pasquinelli G. In vitro alteration of physiological parameters do not hamper the growth of human multipotent vascular wall-mesenchymal stem cells. Front Cell Dev Biol 2015; 3:36. [PMID: 26090364 PMCID: PMC4455290 DOI: 10.3389/fcell.2015.00036] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2015] [Accepted: 05/15/2015] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Mesenchymal stem cells (MSCs) with multilineage potential and anti-inflammatory property can be isolated from different human tissues, representing promising candidates in regenerative medicine. Despite the common criteria of characterization, many factors contribute to MSC heterogeneity (i.e., tissue origin, coexistence of cell subsets at different stage of differentiation, epigenetic) and no standard methods have been approved to characterize MSCs in cell culture. AIM The present study aimed to test whether MSCs resist adverse chemical and physical culture conditions, surviving MSC subpopulations are endowed with the stemness abilities; to characterize MMP expression in AAA-MSCs under the adverse experimental conditions. METHODS AND RESULTS MSCs enzymatically isolated from human abdominal aortic aneurysm (AAA-MSCs) were exposed to media acidification, hypoxia, starving, drying and hypothermia through the following strategies: (1) low-density seeding in closed flasks; (2) exposure to a chemical hypoxia inducer, cobalt chloride; (3) exposure to a dry environment with growing medium deprivation and culture at 4°C. None of these conditions affected MSC viability and stemness profile, as evidenced by NANOG, OCT-4, and SOX-2 mRNA expression in surviving cells. A significant MMP-9 decrease, especially when AAA-MSCs were exposed to hypothermia, was associated with stress resistant stem cells. CONCLUSIONS AAA-MSCs survive to extremely adverse culture conditions, keeping their morphology and stemness features. Besides MMP-9 role in pathological tissue remodeling, this protease may be related to MSC survival. Future studies on MSCs derived from other tissues will be necessary to refine our culture protocol, which can represent an empirical method to demonstrate MSC stemness, with potential implications for their clinical use.
Collapse
Affiliation(s)
- Carmen Ciavarella
- Laboratory of Clinic Pathology, Department of Specialty, Diagnostic and Experimental Medicine (DIMES), S. Orsola-Malpighi Hospital, University of BolognaBologna, Italy
| | - Silvia Fittipaldi
- Laboratory of Clinic Pathology, Department of Specialty, Diagnostic and Experimental Medicine (DIMES), S. Orsola-Malpighi Hospital, University of BolognaBologna, Italy
- Laboratory of Metakaryotic Biology, Department of Biological Engineering, Massachusetts Institute of TechnologyCambridge, MA, USA
| | - Silvia Pedrini
- Laboratory of Clinic Pathology, Department of Specialty, Diagnostic and Experimental Medicine (DIMES), S. Orsola-Malpighi Hospital, University of BolognaBologna, Italy
| | - Francesco Vasuri
- Unit of Surgical Pathology, Department of Specialty, Diagnostic and Experimental Medicine (DIMES), S. Orsola-Malpighi Hospital, University of BolognaBologna, Italy
| | - Enrico Gallitto
- Unit of Vascular Surgery, Department of Specialty, Diagnostic and Experimental Medicine (DIMES), S. Orsola-Malpighi Hospital, University of BolognaBologna, Italy
| | - Antonio Freyrie
- Unit of Vascular Surgery, Department of Specialty, Diagnostic and Experimental Medicine (DIMES), S. Orsola-Malpighi Hospital, University of BolognaBologna, Italy
| | - Andrea Stella
- Unit of Vascular Surgery, Department of Specialty, Diagnostic and Experimental Medicine (DIMES), S. Orsola-Malpighi Hospital, University of BolognaBologna, Italy
| | - Elena Gostjeva
- Laboratory of Metakaryotic Biology, Department of Biological Engineering, Massachusetts Institute of TechnologyCambridge, MA, USA
| | - Gianandrea Pasquinelli
- Unit of Surgical Pathology, Department of Specialty, Diagnostic and Experimental Medicine (DIMES), S. Orsola-Malpighi Hospital, University of BolognaBologna, Italy
| |
Collapse
|
21
|
Ciavarella C, Alviano F, Gallitto E, Ricci F, Buzzi M, Velati C, Stella A, Freyrie A, Pasquinelli G. Human Vascular Wall Mesenchymal Stromal Cells Contribute to Abdominal Aortic Aneurysm Pathogenesis Through an Impaired Immunomodulatory Activity and Increased Levels of Matrix Metalloproteinase-9. Circ J 2015; 79:1460-9. [PMID: 25854712 DOI: 10.1253/circj.cj-14-0857] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND The main histopathological features of abdominal aortic aneurysm (AAA) are tissue proteolysis mediated by matrix metalloproteinases (MMPs) and inflammation. This study aimed at verifying the presence and contribution of mesenchymal stromal cells (MSCs) to aneurysmal tissue remodeling. METHODS AND RESULTS MSCs were successfully isolated from the AAA wall of 12 male patients and were found to express mesenchymal and stemness markers. MMP-2/-9 are involved in AAA progression and their mRNA levels in AAA-MSCs resulted higher than healthy MSCs (cMSCs), especially MMP-9 (400-fold increased). Moreover, MMP-9 protein and activity were pronounced in AAA-MSCs. Immunomodulation was tested in AAA-MSCs after co-culture with activated peripheral blood mononuclear cells (PBMCs) and revealed a weak immunosuppressive action on PBMC proliferation (bromodeoxyuridine incorporation, flow cytometry assay), together with a reduced expression of anti-inflammatory molecules (HLA-G, IL-10) by AAA-MSCs compared to cMSCs. MMP-9 expression in AAA-MSCs was shown to be negatively modulated under the influence of cMSCs and exogenous IL-10. CONCLUSIONS MSCs with stemness properties are niched in human AAA tissues and display a dysregulation of functional activities; that is, upregulation of MMP-9 and ineffective immunomodulatory capacity, which are crucial in the AAA progression; the possibility to modulate the increased MMP-9 expression by healthy MSCs and IL-10 suggests that novel therapeutic strategies are possible for slowing down AAA progression.
Collapse
Affiliation(s)
- Carmen Ciavarella
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna
| | | | | | | | | | | | | | | | | |
Collapse
|
22
|
Ciavarella C, Alviano F, Ricci F, Gallitto E, Pasquinelli G, Freyrie A, Stella A. Vascular Wall Mesenchymal Stromal Cells Contribute to Abdominal Aortic Aneurysm Pathogenesis Through the Loss of Immunomodulatory Activity. Eur J Vasc Endovasc Surg 2014. [DOI: 10.1016/j.ejvs.2014.03.019] [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: 10/25/2022]
|
23
|
Valente S, Alviano F, Ciavarella C, Buzzi M, Ricci F, Tazzari PL, Pagliaro P, Pasquinelli G. Human cadaver multipotent stromal/stem cells isolated from arteries stored in liquid nitrogen for 5 years. Stem Cell Res Ther 2014; 5:8. [PMID: 24429026 PMCID: PMC4055119 DOI: 10.1186/scrt397] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Accepted: 01/06/2014] [Indexed: 12/16/2022] Open
Abstract
Introduction Regenerative medicine challenges researchers to find noncontroversial, safe and abundant stem cell sources. In this context, harvesting from asystolic donors could represent an innovative and unlimited reservoir of different stem cells. In this study, cadaveric vascular tissues were established as an alternative source of human cadaver mesenchymal stromal/stem cells (hC-MSCs). We reported the successful cell isolation from postmortem arterial segments stored in a tissue-banking facility for at least 5 years. Methods After thawing, hC-MSCs were isolated with a high efficiency (12 × 106) and characterized with flow cytometry, immunofluorescence, molecular and ultrastructural approaches. Results In early passages, hC-MSCs were clonogenic, highly proliferative and expressed mesenchymal (CD44, CD73, CD90, CD105, HLA-G), stemness (Stro-1, Oct-4, Notch-1), pericyte (CD146, PDGFR-β, NG2) and neuronal (Nestin) markers; hematopoietic and vascular markers were negative. These cells had colony and spheroid-forming abilities, multipotency for their potential to differentiate in multiple mesengenic lineages and immunosuppressive activity to counteract proliferation of phytohemagglutinin-stimulated blood mononuclear cells. Conclusions The efficient procurement of stem cells from cadaveric sources, as postmortem vascular tissues, demonstrates that such cells can survive to prolonged ischemic insult, anoxia, freezing and dehydration injuries, thus paving the way for a scientific revolution where cadaver stromal/stem cells could effectively treat patients demanding cell therapies.
Collapse
|