1
|
Ganzetti G, Rigamonti E, Parolini C. Liver microarray analysis identifies human A-Imilano and A-II as determinants of the gene expression related to lipid and energy metabolism. Atherosclerosis 2020. [DOI: 10.1016/j.atherosclerosis.2020.10.511] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
2
|
Mattiolo P, Fiadone G, Paolino G, Chatterjee D, Bernasconi R, Piccoli P, Parolini C, El Aidi M, Sperandio N, Malleo G, Salvia R, Brosens LA, Wood LD, Scarpa A, Lawlor RT, Luchini C. Epithelial-mesenchymal transition in undifferentiated carcinoma of the pancreas with and without osteoclast-like giant cells. Virchows Arch 2020; 478:319-326. [PMID: 32661742 PMCID: PMC7969490 DOI: 10.1007/s00428-020-02889-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 05/07/2020] [Revised: 06/12/2020] [Accepted: 07/07/2020] [Indexed: 12/17/2022]
Abstract
Undifferentiated carcinoma (UC) and undifferentiated carcinoma with osteoclast-like giant cells (UCOGC) are peculiar variants of pancreatic ductal adenocarcinoma (PDAC), characterized by hypercellularity and absence of glandular patterns. The inflammatory microenvironment is peculiar in UCOGC, since it is dominated by macrophages and osteoclast-like giant cells. However, from a molecular point of view, both UC and UCOGC are very similar to conventional PDAC, sharing alterations of the most common genetic drivers. Clinically, UC usually show a worse prognosis, whereas UCOGC may show a better prognosis if it is not associated with a PDAC component. To highlight potential biological differences between these entities, we investigated the role of the epithelial to mesenchymal transition (EMT) in UC and UCOGC. Specifically, we analyzed the immunohistochemical expression of three well-known EMT markers, namely Twist1, Snai2, and E-cadherin, in 16 cases of UCOGC and 10 cases of UC. We found that EMT is more frequently activated in UC (10/10 cases) than in UCOGC (8/16 cases; p = 0.05). Furthermore, in UCOGC, EMT was activated with a higher frequency in cases with an associated PDAC component. Snai2 was the most frequently and strongly expressed marker in both tumor types (10/10 UC, 8/16 UCOGC), and its expression was higher in UC than in UCOGC (mean immunohistochemical score: 4.8 in UC vs. 2.1 in UCOGC, p < 0.01). Our results shed new light on the biology of UC and UCOGC: EMT appeared as a more important process in UC, and Snai2 emerged as a central EMT effector in this setting.
Collapse
Affiliation(s)
- Paola Mattiolo
- Department of Diagnostics and Public Health, Section of Pathology, University and Hospital Trust of Verona, Piazzale Scuro, 10, 37134, Verona, Italy
| | - Giulia Fiadone
- Department of Diagnostics and Public Health, Section of Pathology, University and Hospital Trust of Verona, Piazzale Scuro, 10, 37134, Verona, Italy
| | - Gaetano Paolino
- Department of Diagnostics and Public Health, Section of Pathology, University and Hospital Trust of Verona, Piazzale Scuro, 10, 37134, Verona, Italy
| | - Deyali Chatterjee
- Department of Pathology and Immunology, Washington University, St. Louis, MO, USA
| | - Riccardo Bernasconi
- Department of Diagnostics and Public Health, Section of Pathology, University and Hospital Trust of Verona, Piazzale Scuro, 10, 37134, Verona, Italy
| | - Paola Piccoli
- Department of Diagnostics and Public Health, Section of Pathology, University and Hospital Trust of Verona, Piazzale Scuro, 10, 37134, Verona, Italy
| | - Claudia Parolini
- Department of Diagnostics and Public Health, Section of Pathology, University and Hospital Trust of Verona, Piazzale Scuro, 10, 37134, Verona, Italy
| | - Mouad El Aidi
- Department of Diagnostics and Public Health, Section of Pathology, University and Hospital Trust of Verona, Piazzale Scuro, 10, 37134, Verona, Italy.,Faculty of Medicine and Pharmacy, University of Rabat, Rabat, Morocco
| | - Nicola Sperandio
- Department of Diagnostics and Public Health, Section of Pathology, University and Hospital Trust of Verona, Piazzale Scuro, 10, 37134, Verona, Italy
| | - Giuseppe Malleo
- Department of Surgery, The Pancreas Institute, University and Hospital Trust of Verona, Verona, Italy
| | - Roberto Salvia
- Department of Surgery, The Pancreas Institute, University and Hospital Trust of Verona, Verona, Italy
| | - Lodewijk A Brosens
- Department of Pathology, UMC Utrecht, Utrecht University, Utrecht, the Netherlands.,Department of Pathology, Radboud UMC, Nijmegen, the Netherlands
| | - Laura D Wood
- Department of Pathology, Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Aldo Scarpa
- Department of Diagnostics and Public Health, Section of Pathology, University and Hospital Trust of Verona, Piazzale Scuro, 10, 37134, Verona, Italy.,ARC-Net Research Center, University and Hospital Trust of Verona, Verona, Italy
| | - Rita T Lawlor
- ARC-Net Research Center, University and Hospital Trust of Verona, Verona, Italy
| | - Claudio Luchini
- Department of Diagnostics and Public Health, Section of Pathology, University and Hospital Trust of Verona, Piazzale Scuro, 10, 37134, Verona, Italy.
| |
Collapse
|
3
|
Lawlor RT, Daprà V, Girolami I, Pea A, Pilati C, Nottegar A, Piccoli P, Parolini C, Sperandio N, Capelli P, Scarpa A, Luchini C. CD200 expression is a feature of solid pseudopapillary neoplasms of the pancreas. Virchows Arch 2018; 474:105-109. [PMID: 30132130 PMCID: PMC6323071 DOI: 10.1007/s00428-018-2437-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 08/06/2018] [Accepted: 08/13/2018] [Indexed: 11/30/2022]
Abstract
CD200 has been recently indicated as a robust marker of well-differentiated neuroendocrine neoplasms. Here, we evaluate its role in differential diagnosis of solid pancreatic neoplasms. We immunostained for CD200 22 solid pseudopapillary neoplasms (SPNs), 8 acinar carcinomas (ACs), 2 pancreatoblastomas (PBs), 138 neuroendocrine tumors (PanNETs), and 48 ductal adenocarcinomas. All SPNs showed strong cytoplasmic and membranous staining for CD200, while only one case of AC had focal positivity. The two PBs showed focal CD200 positivity, mainly located in squamoid nests. The vast majority of PanNETs (96%) showed strong cytoplasmic and membranous staining for CD200, whereas all PDACs were negative. As both PanNETs and SPNs express CD200, it has no role in the differential diagnosis between these two entities.
Collapse
Affiliation(s)
- Rita T Lawlor
- ARC-Net Research Center, University of Verona, Verona, Italy
| | - Valentina Daprà
- Department of Diagnostics and Public Health, Section of Pathology, University and Hospital Trust of Verona, Piazzale Scuro, 10, 37134, Verona, Italy
| | - Ilaria Girolami
- Department of Diagnostics and Public Health, Section of Pathology, University and Hospital Trust of Verona, Piazzale Scuro, 10, 37134, Verona, Italy
| | - Antonio Pea
- Department of General and Visceral Surgery, Pancreas Institute, University and Hospital Trust of Verona, Verona, Italy
| | - Camilla Pilati
- Personalized Medicine, Pharmacogenomics, Therapeutic Optimization, Paris-Descartes University, Paris, France
| | - Alessia Nottegar
- Department of Surgery, Section of Pathology, San Bortolo Hospital, Vicenza, Italy
| | - Paola Piccoli
- Department of Diagnostics and Public Health, Section of Pathology, University and Hospital Trust of Verona, Piazzale Scuro, 10, 37134, Verona, Italy
| | - Claudia Parolini
- Department of Diagnostics and Public Health, Section of Pathology, University and Hospital Trust of Verona, Piazzale Scuro, 10, 37134, Verona, Italy
| | - Nicola Sperandio
- Department of Diagnostics and Public Health, Section of Pathology, University and Hospital Trust of Verona, Piazzale Scuro, 10, 37134, Verona, Italy
| | - Paola Capelli
- Department of Diagnostics and Public Health, Section of Pathology, University and Hospital Trust of Verona, Piazzale Scuro, 10, 37134, Verona, Italy
| | - Aldo Scarpa
- ARC-Net Research Center, University of Verona, Verona, Italy.
- Department of Diagnostics and Public Health, Section of Pathology, University and Hospital Trust of Verona, Piazzale Scuro, 10, 37134, Verona, Italy.
| | - Claudio Luchini
- Department of Diagnostics and Public Health, Section of Pathology, University and Hospital Trust of Verona, Piazzale Scuro, 10, 37134, Verona, Italy
| |
Collapse
|
4
|
Manzini S, Busnelli M, Parolini C, Ferrari B, Scanziani E, Chiesa G. Fenretinide exacerbates atherosclerosis in spite of beneficial metabolic effects. Atherosclerosis 2018. [DOI: 10.1016/j.atherosclerosis.2018.06.247] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
5
|
Parolini C, Manzini S, Busnelli M, Brambilla E, Scanziani E, Chiesa G. Topiramate ameliorates glomerular lipidosis in western diet fed apoE knock-out mice. Atherosclerosis 2018. [DOI: 10.1016/j.atherosclerosis.2018.06.153] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
6
|
Luchini C, Cros J, Pea A, Pilati C, Veronese N, Rusev B, Capelli P, Mafficini A, Nottegar A, Brosens LAA, Noë M, Offerhaus GJA, Chianchiano P, Riva G, Piccoli P, Parolini C, Malleo G, Lawlor RT, Corbo V, Sperandio N, Barbareschi M, Fassan M, Cheng L, Wood LD, Scarpa A. PD-1, PD-L1, and CD163 in pancreatic undifferentiated carcinoma with osteoclast-like giant cells: expression patterns and clinical implications. Hum Pathol 2018; 81:157-165. [PMID: 30031096 DOI: 10.1016/j.humpath.2018.07.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 07/02/2018] [Accepted: 07/03/2018] [Indexed: 02/07/2023]
Abstract
Undifferentiated carcinoma with osteoclast-like giant cells (UCOGC), a variant of pancreatic ductal adenocarcinoma (PDAC), has a striking genetic similarity to PDAC but a significantly improved overall survival. We hypothesize that this difference could be due to the immune response to the tumor, and as such, we investigated the expression of PD-1, PD-L1, and CD163 in a series of UCOGC. To this aim, 27 pancreatic UCOGCs (11 pure and 16 PDAC-associated), 5 extrapancreatic tumors with osteoclast-like giant cells and 10 pancreatic anaplastic carcinomas were immunostained using antibodies against PD-1, PD-L1, and CD163. In pancreatic UCOGCs, PD-L1 was expressed in neoplastic cells of 17 (63%) of 27 cases, more often in cases with an associated PDAC (P = .04). Expression of PD-L1 was associated with poor prognosis, confirmed by multivariate analysis: patients with PD-L1-positive UCOGCs had a risk of all-cause mortality that was 3 times higher than did patients with PD-L1-negative UCOGCs (hazard ratio, 3.397; 95% confidence interval, 1.023-18.375; P = .034). PD-L1 expression on tumor cells was also associated with aberrant P53 expression (P = .035). PD-1 was expressed on rare lymphocytes in 12 UCOGCs (44.4%), mainly located at the tumor periphery. CD163 was expressed on histiocytes, with a diffuse and strong staining pattern in all UCOGCs. Extrapancreatic tumors with osteoclast-like giant cells showed very similar staining patterns for the same proteins. Anaplastic carcinomas have some similarities to UCOGCs, but PD-L1 has no prognostic roles. Our results may have important implications for immunotherapeutic strategies in UCOGCs; these tumors may also represent a model for future therapeutic approaches against PDAC.
Collapse
Affiliation(s)
- Claudio Luchini
- Department of Diagnostics and Public Health, Section of Pathology, University of Verona, 37134 Verona, Italy
| | - Jerome Cros
- Department of Pathology, Beaujon Hospital, 92110 Clichy, France; Paris-Diderot School of Medicine, Inflammation Research Center, 75013 Paris, France
| | - Antonio Pea
- Department of Surgery, University and Hospital Trust of Verona, 37134 Verona, Italy
| | - Camilla Pilati
- Personalized Medicine, Pharmacogenomics, Therapeutic Optimization, Paris-Descartes University, 75006 Paris, France
| | - Nicola Veronese
- National Institute of Gastroenterology-Research Hospital, IRCCS "S. de Bellis," 70013, Castellana Grotte, Bari, Italy
| | - Borislav Rusev
- ARC-Net Research Center, University of Verona, 37134 Verona, Italy
| | - Paola Capelli
- Department of Diagnostics and Public Health, Section of Pathology, University of Verona, 37134 Verona, Italy
| | - Andrea Mafficini
- ARC-Net Research Center, University of Verona, 37134 Verona, Italy
| | - Alessia Nottegar
- Department of Surgery, Section of Pathology, San Bortolo Hospital, 36100 Vicenza, Italy
| | - Lodewijk A A Brosens
- Department of Pathology, University Medical Center Utrecht, 3508 Utrecht, The Netherlands; Department of Pathology, Radboud University Medical Center, 6500, HB, Nijmegen, The Netherlands
| | - Michaël Noë
- Department of Pathology, Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, MD 21211, USA
| | - G Johan A Offerhaus
- Department of Pathology, University Medical Center Utrecht, 3508 Utrecht, The Netherlands
| | - Peter Chianchiano
- Department of Pathology, Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, MD 21211, USA
| | - Giulio Riva
- Department of Diagnostics and Public Health, Section of Pathology, University of Verona, 37134 Verona, Italy
| | - Paola Piccoli
- Department of Diagnostics and Public Health, Section of Pathology, University of Verona, 37134 Verona, Italy
| | - Claudia Parolini
- Department of Diagnostics and Public Health, Section of Pathology, University of Verona, 37134 Verona, Italy
| | - Giuseppe Malleo
- Department of Surgery, University and Hospital Trust of Verona, 37134 Verona, Italy
| | - Rita T Lawlor
- ARC-Net Research Center, University of Verona, 37134 Verona, Italy
| | - Vincenzo Corbo
- Department of Diagnostics and Public Health, Section of Pathology, University of Verona, 37134 Verona, Italy
| | - Nicola Sperandio
- Department of Diagnostics and Public Health, Section of Pathology, University of Verona, 37134 Verona, Italy
| | | | - Matteo Fassan
- ARC-Net Research Center, University of Verona, 37134 Verona, Italy
| | - Liang Cheng
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Laura D Wood
- Department of Pathology, Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, MD 21211, USA; Department of Oncology, Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, MD 21211, USA.
| | - Aldo Scarpa
- Department of Diagnostics and Public Health, Section of Pathology, University of Verona, 37134 Verona, Italy; ARC-Net Research Center, University of Verona, 37134 Verona, Italy.
| |
Collapse
|
7
|
Luchini C, Parcesepe P, Nottegar A, Parolini C, Mafficini A, Remo A, Chilosi M, Manfrin E. CD71 in Gestational Pathology: A Versatile Immunohistochemical Marker With New Possible Applications. Appl Immunohistochem Mol Morphol 2016; 24:215-20. [PMID: 25906120 DOI: 10.1097/pai.0000000000000175] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [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]
Abstract
Transferrin receptor/CD71 is a membrane protein expressed on nucleated red blood cells (NRBCs) and trophoblasts. Here, we propose the first study to evaluate the usefulness of CD71 immunolabeling in the main fields of gestational pathology. To this aim, formalin-fixed, paraffin-embedded samples of 45 orthotopic (23 spontaneous abortive and 22 molar pregnancies) and 11 ectopic pregnancies were immunostained for CD71. NRBCs were morphologically evident in 23 cases: 12/23 abortive, 4/11 ectopic, and 7/10 partial molar pregnancies. CD71 immunolabeling detected NRBCs in all 23 previous cases and in 8 new cases: 2 partial moles and 6 spontaneous abortive pregnancies. No NRBCs were detected in complete moles by means of either morphology or immunohistochemistry (IHC). In 4 cases with extensive necrotic changes, CD71 marked NRBCs and a few ghost villi, which were not certainly identifiable with standard histological evaluation. Furthermore, there was an inversely proportional relationship between total percentage of CD71-positive NRBCs and gestational age (R=0.69; P<0.0001). We conclude that CD71 is a robust IHC marker for the detection of NRBCs and chorionic villi, especially in the presence of necrosis. The demonstration of NRBCs can be important in molar pathology, helping to exclude a complete mole. The application of CD71 could improve the diagnosis of this pathology in selected cases in which diffuse necrotic or hemorrhagic aspects may hinder the interpretation of the conventional approach with histology, IHC for p57, and ploidy analysis. Finally, the inverse correlation between the total percentage of CD71-positive NRBCs and gestational age suggests that this analysis may help in pregnancy dating.
Collapse
Affiliation(s)
- Claudio Luchini
- *Department of Pathology and Diagnostics †ARC-NET Research Center, University of Verona ‡Ospedale Mater Salutis, Legnago, Verona, Italy
| | | | | | | | | | | | | | | |
Collapse
|
8
|
Parolini C, Dellera F, Ganzetti G, Manzini S, Busnelli M, Ramsvik M, Bjorndal B, Bruheim I, Berge R, Chiesa G. Impact of oil and proteins derived from Antarctic krill on atherosclerosis development in apoEKO mice. Atherosclerosis 2016. [DOI: 10.1016/j.atherosclerosis.2016.07.551] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
9
|
Busnelli M, Manzini S, Hilvo M, Parolini C, Ganzetti G, Dellera F, Ekroos K, Jänis M, Sirtori C, Laaksonen R, Chiesa G. Hepatocyte-specific PPAP2B ablation increases plasma levels of several minor pro-atherogenic lipid species and worsens atherosclerosis in apoE -/- MICE. Atherosclerosis 2016. [DOI: 10.1016/j.atherosclerosis.2016.07.053] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
10
|
Chiesa G, Busnelli M, Parolini C, Manzini S, Ganzetti G, Dellera F, Suoniemi M, Hilvo M, Hurme R, Ekroos K, Sirtori C, Laaksonen R. Lipidomics of plasma, liver and aorta of Pcsk9-KO mice. Atherosclerosis 2016. [DOI: 10.1016/j.atherosclerosis.2016.07.581] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
11
|
Eccher A, Brunelli M, Gobbo S, Dalfior D, Dvornik G, Barbareschi M, Parolini C, Menestrina F, Martignoni G. Chondroid Syringoma With Extensive Ossification. Int J Surg Pathol 2016; 15:385-7. [PMID: 17913946 DOI: 10.1177/1066896907306126] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Albino Eccher
- Anatomia Patologica, Dipartimento di Patologia, Università di Verona, Strada Le Grazie No. 8, 37134 Verona.
| | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Luchini C, Parcesepe P, Mafficini A, Nottegar A, Parolini C, Veronese N, Remo A, Manfrin E. Specific expression patterns of epithelial to mesenchymal transition factors in gestational molar disease. Placenta 2015; 36:1318-24. [PMID: 26459371 DOI: 10.1016/j.placenta.2015.09.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Revised: 09/19/2015] [Accepted: 09/24/2015] [Indexed: 02/07/2023]
Abstract
INTRODUCTION The epithelial to mesenchymal transition, a well-known and re-emerging model in pathology, has not been completely investigated in the field of gestational pathology. This study aims at improving the comprehension of this process in molar disease, even looking for new possible immunohistochemical markers. MATERIALS AND METHODS We have analysed the immunohistochemical expression of Twist1 and Snai2, two of the most important transcription factors involved in epithelial to mesenchymal transition, in formalin-fixed paraffin-embedded samples of 23 spontaneous abortive pregnancies, 22 molar pregnancies (10 partial and 12 complete) and 7 term placentas. RESULTS Twist1 and Snai2 were highly expressed in stromal villi cells of molar disease. Particularly, Twist1 was highly expressed in complete moles compared to both abortive pregnancies (p < 0.001) and partial moles (p < 0.05). Also Snai2 was more expressed by complete moles, differentiating them from non-molar abortions (p < 0.05). DISCUSSION On the basis of the known cadherins and claudins expression in these pathologies, our new findings reinforce the hypothesis of the involvement of epithelial to mesenchymal transition in early molar pregnancies and above all in complete moles. Furthermore, we highlighted that in molar disease not only the trophoblast, but even the villi stromal cells, are involved. Thanks to their specificity, furthermore, these Twist1 and Snai2 could be used as additional immunohistochemical tool in the diagnosis of complete molar disease, with Twist1 as the first choice.
Collapse
Affiliation(s)
- Claudio Luchini
- Department of Pathology and Diagnostics, University of Verona, Verona, Italy.
| | - Pietro Parcesepe
- Department of Pathology and Diagnostics, University of Verona, Verona, Italy
| | | | - Alessia Nottegar
- Department of Pathology and Diagnostics, University of Verona, Verona, Italy
| | - Claudia Parolini
- Department of Pathology and Diagnostics, University of Verona, Verona, Italy
| | - Nicola Veronese
- Department of Medicine (DIMED), University of Padova, Padova, Italy
| | - Andrea Remo
- Mater Salutis Hospital, Legnago, Verona, Italy
| | - Erminia Manfrin
- Department of Pathology and Diagnostics, University of Verona, Verona, Italy
| |
Collapse
|
13
|
Caliò A, Zamò A, Ponzoni M, Zanolin ME, Ferreri AJM, Pedron S, Montagna L, Parolini C, Fraifeld VE, Wolfson M, Yanai H, Pizzolo G, Doglioni C, Vinante F, Chilosi M. Cellular Senescence Markers p16INK4a and p21CIP1/WAF Are Predictors of Hodgkin Lymphoma Outcome. Clin Cancer Res 2015. [PMID: 26199387 DOI: 10.1158/1078-0432.ccr-15-0508] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE There is evidence that Hodgkin Reed-Sternberg (HRS) cells in classical Hodgkin lymphoma (cHL) could display some molecular and morphologic markers of cellular senescence (CS). We hypothesized that CS mechanisms may have potential prognostic relevance in cHL and investigated whether the expression of the well-established CS biomarkers p21(CIP1/WAF1) and p16(INK4a) by HRS cells might be predictive of the probability of event-free survival (EFS). EXPERIMENTAL DESIGN The study analyzed a retrospective cohort of 147 patients and the results were validated on a cohort of 91 patients independently diagnosed and treated in a different institution. p16(INK4a) and p21(CIP1/WAF1) were categorized as dichotomous variables (< or ≥ 30% of HRS cells at diagnosis) and evaluated in univariate and multivariate analysis. RESULTS Both molecules were independent prognostic factors. A positive staining of one of the two molecules in more than 30% HRS cells predicted a better EFS (P < 0.01). p16(INK4a)/p21(CIP1/WAF1) together as a unique categorical variable (both <30%, either <30%, both ≥ 30%) sorted out three prognostic groups with better, intermediate, or worse outcome either overall or within I-II, bulky and advanced stages. The presence or the lack of the robust expression of p21(CIP1/WAF1) and/or p16(INK4a) defined the prognosis in our series. CONCLUSIONS These findings point to (i) the relevance of CS-related mechanisms in cHL, and to (ii) the prognostic value of a simple, reproducible, and low-cost immunohistochemical evaluation of p16(INK4a) and p21(CIP1/WAF1) expression.
Collapse
Affiliation(s)
- Anna Caliò
- Department of Pathology and Diagnostic, Anatomic Pathology Section, University of Verona, Verona, Italy
| | - Alberto Zamò
- Department of Pathology and Diagnostic, Anatomic Pathology Section, University of Verona, Verona, Italy
| | - Maurilio Ponzoni
- Vita-Salute San Raffaele University, Pathology and Lymphoid Malignancies Units, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Maria Elisabetta Zanolin
- Department of Public Health and Community Medicine, Unit of Epidemiology and Medical Statistics, University of Verona, Verona, Italy
| | - Andrés J M Ferreri
- Unit of Lymphoid Malignancies, Division of Onco-Hematological Medicine, Department of Onco-Hematology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Serena Pedron
- Department of Pathology and Diagnostic, Anatomic Pathology Section, University of Verona, Verona, Italy
| | - Licia Montagna
- Department of Pathology and Diagnostic, Anatomic Pathology Section, University of Verona, Verona, Italy
| | - Claudia Parolini
- Department of Pathology and Diagnostic, Anatomic Pathology Section, University of Verona, Verona, Italy
| | - Vadim E Fraifeld
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Center for Multidisciplinary Research on Aging, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Marina Wolfson
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Center for Multidisciplinary Research on Aging, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Hagai Yanai
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Center for Multidisciplinary Research on Aging, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Giovanni Pizzolo
- Department of Medicine, Hematology Section, University of Verona, Verona, Italy
| | - Claudio Doglioni
- Vita-Salute San Raffaele University, Pathology and Lymphoid Malignancies Units, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Fabrizio Vinante
- Department of Medicine, Hematology Section, University of Verona, Verona, Italy.
| | - Marco Chilosi
- Department of Pathology and Diagnostic, Anatomic Pathology Section, University of Verona, Verona, Italy
| |
Collapse
|
14
|
Chiesa G, Manzini S, Horner D, Chiara M, Ganzetti G, Dellera F, Parolini C, Busnelli M. Sympathetic neurotransmission during atherosclerosis development: An unrecognized target of dyslipidemia? Atherosclerosis 2015. [DOI: 10.1016/j.atherosclerosis.2015.04.342] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
15
|
Busnelli M, Sala F, Manzini S, Ganzetti G, Parolini C, Dellera F, Scanziani E, Arnaboldi L, Sirtori C, Norata G, Chiesa G. ApoA-I deficiency in apoe-ko mice severely alters lymph nodes and modulates T lymphocyte subsets. Atherosclerosis 2014. [DOI: 10.1016/j.atherosclerosis.2014.05.227] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
16
|
Busnelli M, Parolini C, Manzini S, Ganzetti G, Dellera F, Katainen R, Suoniemi M, Tarasov K, Hurme R, Ekroos K, Sirtori C, Laaksonen R, Chiesa G. Impact of dietary treatments on the lipidomic profile of plasma, aorta and liver from ldlr-ko and pcsk9-ko mice. Atherosclerosis 2014. [DOI: 10.1016/j.atherosclerosis.2014.05.541] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
17
|
Chiesa G, Fingerle J, Mary J, Bader M, Falkenstein R, Mohl S, Lorenzon P, Busnelli M, Ganzetti G, Manzini S, Dellera F, Sirtori C, Parolini C. Effect of tetranectin-apoa-i infusions on atherosclerosis progression/regression in rabbit carotid arteries. Atherosclerosis 2014. [DOI: 10.1016/j.atherosclerosis.2014.05.247] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
18
|
Parolini C, Manzini S, Busnelli M, Chiara M, Dellera F, Ganzetti G, Sirtori C, Horner D, Chiesa G. Gene-expression profiling of lymph nodes reveals that apoa-i deficiency in apoe-ko mice induces a dramatic activation of the immune response. Atherosclerosis 2014. [DOI: 10.1016/j.atherosclerosis.2014.05.373] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
19
|
Noce A, Canale MP, Durante O, di Villahermosa SM, Rovella V, Fiorini F, Parolini C, Di Daniele N. Refractory hypertension and rapidly progressive renal failure due to bilateral renal artery stenosis: case report. Arch Ital Urol Androl 2012; 84:249-252. [PMID: 23427756] [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] [Subscribe] [Scholar Register] [Indexed: 06/01/2023] Open
Abstract
INTRODUCTION We report a case of refractory hypertension and acute renal failure with mild proteinuria due to an unreported bilateral Renal Artery Stenosis, who underwent renal biopsy in the suspicion of rapidly progressive glomerulonephritis. CASE PRESENTATION A 51-year-old Caucasian male was admitted with refractory hypertension of recent onset and acute renal failure. Duplex Doppler Ultrasonography was performed and provided images highly suggestive for bilateral renal artery stenosis. The patient was referred to the department of interventional radiology, where bilateral selective renal angiography and percutaneous endovascular angioplasty and stenting were performed successfully. CONCLUSION Duplex Doppler Ultrasonography is thus suggested in patients presenting with refractory hypertension and acute renal failure, especially if atherosclerotic disease and clinical clues of RAS are present. Renal revascularisation with bilateral angioplasty and stenting may play a key role in the treatment of bilateral Renal Artery Stenosis, especially in patients unable to maintain renal function as systemic blood pressure is lowered.
Collapse
Affiliation(s)
- Annalisa Noce
- Department of Internal Medicine, Nephrology and Hypertension Unit, University of Rome Tor Vergata, Rome, Italy.
| | | | | | | | | | | | | | | |
Collapse
|
20
|
Brunelli M, Segala D, Delahunt B, Parolini C, Bersani S, Cheng L, Eble JN, Chilosi M, Gobbo S, Martignoni G. FISH scoring on paraffin sections versus single-cell suspension for chromophobe renal carcinoma and renal oncocytoma. Anticancer Res 2011; 31:3137-3142. [PMID: 21965719] [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] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
BACKGROUND Sectioning of the nuclei on tissue sections may give an overestimate of monosomy, a feature diagnostic of chromophobe renal cell carcinoma versus renal oncocytoma. The aim of the study was to assess whether or not nuclear sectioning may distort the results obtained from interphase fluorescence in situ hybridization (FISH) comparing the data obtained from analysis of isolated nuclei derived from formalin-fixed, paraffin-embedded sections with histological sections from the adjacent sections from the same tumors. PATIENTS AND METHODS Five chromophobe renal cell carcinomas and five renal oncocytomas were recruited. Sections of 5 μm and 30 μm were cut for FISH to investigate chromosomes 1, 2, 6 10 and 17. RESULTS FISH of isolated nuclei from renal oncocytomas showed a mean increase of 3.0% for nuclei with two signals when compared to tissue sections. For chromosomes 2, 6, 10 and 17, isolated nuclei showed a mean increase of 4.9% of fluorescent signals over nuclei from tissue sections. FISH analysis of isolated nuclei from chromophobe renal cell carcinoma showed a similar counts. CONCLUSION When a tumor section exhibits a borderline percentage of nuclei with single signals around the cut-off level on tissue sections, the test should be repeated on isolated nuclei to confirm chromosomal loss, diagnostic of chromophobe renal carcinoma.
Collapse
Affiliation(s)
- Matteo Brunelli
- Department of Pathology and Diagnostic, University of Verona, P.le Ludovico Scuro 10, 37134 Verona, Italy
| | | | | | | | | | | | | | | | | | | |
Collapse
|
21
|
Pighi C, Gu TL, Dalai I, Barbi S, Parolini C, Bertolaso A, Pedron S, Parisi A, Ren J, Cecconi D, Chilosi M, Menestrina F, Zamò A. Phospho-proteomic analysis of mantle cell lymphoma cells suggests a pro-survival role of B-cell receptor signaling. Cell Oncol (Dordr) 2011; 34:141-53. [PMID: 21394647 PMCID: PMC3063577 DOI: 10.1007/s13402-011-0019-7] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/12/2011] [Indexed: 01/29/2023] Open
Abstract
Background Mantle cell lymphoma (MCL) is currently an incurable entity, and new therapeutic approaches are needed. We have applied a high-throughput phospho-proteomic technique to MCL cell lines to identify activated pathways and we have then validated our data in both cell lines and tumor tissues. Methods PhosphoScan analysis was performed on MCL cell lines. Results were validated by flow cytometry and western blotting. Functional validation was performed by blocking the most active pathway in MCL cell lines. Results PhosphoScan identified more than 300 tyrosine-phosporylated proteins, among which many protein kinases. The most abundant peptides belonged to proteins connected with B-cell receptor (BCR) signaling. Active BCR signaling was demonstrated by flow cytometry in MCL cells and by western blotting in MCL tumor tissues. Blocking BCR signaling by Syk inhibitor piceatannol induced dose/time-dependent apoptosis in MCL cell lines, as well as several modifications in the phosphorylation status of BCR pathway members and a collapse of cyclin D1 protein levels. Conclusion Our data support a pro-survival role of BCR signaling in MCL and suggest that this pathway might be a candidate for therapy. Our findings also suggest that Syk activation patterns might be different in MCL compared to other lymphoma subtypes. Electronic supplementary material The online version of this article (doi:10.1007/s13402-011-0019-7) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Chiara Pighi
- Department of Pathology and Diagnostics, University of Verona, P.le Scuro 10, 37134, Verona, Italy
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
22
|
Brunelli M, Delahunt B, Gobbo S, Tardanico R, Eccher A, Bersani S, Cossu-Rocca P, Parolini C, Balzarini P, Menestrina F, Cheng L, Eble JN, Martignoni G. Diagnostic usefulness of fluorescent cytogenetics in differentiating chromophobe renal cell carcinoma from renal oncocytoma: a validation study combining metaphase and interphase analyses. Am J Clin Pathol 2010; 133:116-26. [PMID: 20023267 DOI: 10.1309/ajcpsatjtkbi6j4n] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
We investigated the usefulness of interphase fluorescence in situ hybridization (FISH) analysis to differentiate between 11 chromophobe renal carcinomas and 12 renal oncocytomas, showing different clinical outcomes, when compared with conventional metaphase cytogenetics by karyotyping. Karyotypically, 3 chromophobe renal cell carcinomas showed losses of chromosomes, 3 were polyploid, 1 was normal, and 4 failed to grow. Of 12 oncocytomas, 5 showed a normal numeric karyotype and 6 additional structural rearrangements. FISH on chromophobe renal cell carcinomas showed a high percentage of cases (10/11 [91%]) with multiple numeric losses among chromosomes 1, 2, 6, 10, and 17; this interphase pattern was observed irrespective of the 3 different metaphase karyotypes. Of 12 oncocytomas, 11 (92%) revealed a normal numeric chromosomal status showing at least 2 chromosomes without aneusomy by interphase FISH. The study demonstrates that indeed FISH performed on formalin-fixed, paraffin-embedded tissue can provide clinically useful information more reliably than karyotyping of most of these tumors.
Collapse
|
23
|
Parolini C, Noce A, Staffolani E, Giarrizzo GF, Costanzi S, Splendiani G. Renal resistive index and long-term outcome in chronic nephropathies. Radiology 2009; 252:888-96. [PMID: 19528356 DOI: 10.1148/radiol.2523080351] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
PURPOSE To assess the clinical validity of renal resistive index (RI) to determine prognosis and guide therapy over a long-term follow-up in patients with chronic nephropathies and to verify the commonly used threshold value of 0.70. MATERIALS AND METHODS Of patients referred to the nephrology center since 1995, 177 were initially enrolled and 86 were followed up for RI and renal function annually for 2-11 years (mean, 5.93 years +/- 2.92 [standard deviation]). All patients gave informed consent for the institutional review board-approved study. Correlations were determined between initial RI and age, estimated glomerular filtration rate (eGFR), proteinuria, hematuria, blood pressure, and biopsy scores. The sample was categorized in four groups on the basis of whether initial values of RI and eGFR were normal, and progression to renal failure was compared. With grouping of the sample by using initial RI (< or =0.61, 0.62-0.69, and > or =0.70), Kaplan-Meier analysis was used to obtain survival curves. RESULTS Initial RI correlated with final eGFR (R = -0.4, P < .001), systolic blood pressure (R = 0.39, P < .001), proteinuria (R = 0.28, P = .009), and age (R = 0.28, P = .007). In stepwise multiple regression analysis, RI emerged as the only independent risk factor for the progression to renal failure (P < .001). Among the four groups of patients with different initial RIs and eGFRs, the group with an initial RI of 0.70 or higher showed a worse outcome, independent of initial eGFR. In the Kaplan-Meier analysis by using initial RI, only the group with a value of 0.70 or higher showed a rapid decline of renal function (>50% decrease in eGFR in 6 years). CONCLUSION An RI of 0.70 or higher is predictive of an unfavorable outcome in patients with chronic nephropathies.
Collapse
Affiliation(s)
- Claudia Parolini
- Department of Nephrology, Tor Vergata University, Viale Oxford 81, 00133 Rome, Italy.
| | | | | | | | | | | |
Collapse
|
24
|
Pedica F, Pecori S, Vergine M, Brunelli M, Montagna L, Pedron S, Parolini C, Daniele I, Capelli P, Menestrina F, Chilosi M. Cathepsin-k as a diagnostic marker in the identification of micro-granulomas in Crohn's disease. Pathologica 2009; 101:109-111. [PMID: 19886543] [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] [Subscribe] [Scholar Register] [Indexed: 05/28/2023] Open
Abstract
Crohn's disease is a chronic inflammatory bowel disease, whose aetiology and pathogenesis are still unknown. The occurrence of epithelioid granulomas is one characteristic feature of the disease since these lesions are found in the bowel wall in 50-87% of colectomy specimens. Although granulomas are not pathognomonic, their identification is considered a relevant element for diagnosis. Cathepsin-k, a papain-like cysteine protease, is involved in bone remodelling, and has been widely used as a immunohistochemical marker for the in situ detection of osteoclasts. Interestingly, the expression of this potent protease is also significantly increased in stimulated tissue macrophages, epithelioid cells and granulomas, but is not expressed in resident tissue macrophages. In the present study, we evaluated Cathepsin-k expression as a diagnostic tool in the identification of small granulomas in Crohn's disease. Formalin-fixed and paraffin-embedded samples of 10 cases of Crohn's disease were collected from surgical ileo-colic resections followed by comparison of Cathepsin-k and CD68 immunoreactivity. Granulomas were identified in 4 of 10 cases examined in haematoxylin & eosin preparations. Cathepsin-k enabled the identification of small granulomas (with a diameter between 100 and 200 microm) in 6 of 10 cases, mainly localized within the submucosa and muscular layers. When compared to CD68, Cathepsin-k immunoreactivity was generally absent or only weakly expressed in resting tissue macrophages, thus allowing better identification of activated epithelioid cells. Based on these results, Cathepsin-k appears to be a reliable tool for the precise and rapid identification of small epithelioid granulomas in Crohn's disease.
Collapse
Affiliation(s)
- F Pedica
- Anatomic Pathology, Department of Pathology, University of Verona, Italy
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
25
|
Lupo A, Faraggiana T, Loschiavo C, Parolini C, Maschio G. Nephrotic Syndrome During 2-Mercapto-Propionyl-Glycine (Thiola) Therapy. Nephron Clin Pract 2008. [DOI: 10.1159/000182123] [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: 11/19/2022] Open
|
26
|
Cecconi D, Zamò A, Parisi A, Bianchi E, Parolini C, Timperio AM, Zolla L, Chilosi M. Induction of Apoptosis in Jeko-1 Mantle Cell Lymphoma Cell Line by Resveratrol: A Proteomic Analysis. J Proteome Res 2008; 7:2670-80. [DOI: 10.1021/pr700712p] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Daniela Cecconi
- Dipartimento Scientifico e Tecnologico, Laboratorio di Proteomica, University of Verona, Verona, Italy, Dipartimento di Patologia, Sezione di Anatomia Patologica, University of Verona, Verona, Italy, and Dipartimento di Scienze Ambientali, University of Tuscia, Viterbo, Italy
| | - Alberto Zamò
- Dipartimento Scientifico e Tecnologico, Laboratorio di Proteomica, University of Verona, Verona, Italy, Dipartimento di Patologia, Sezione di Anatomia Patologica, University of Verona, Verona, Italy, and Dipartimento di Scienze Ambientali, University of Tuscia, Viterbo, Italy
| | - Alice Parisi
- Dipartimento Scientifico e Tecnologico, Laboratorio di Proteomica, University of Verona, Verona, Italy, Dipartimento di Patologia, Sezione di Anatomia Patologica, University of Verona, Verona, Italy, and Dipartimento di Scienze Ambientali, University of Tuscia, Viterbo, Italy
| | - Elena Bianchi
- Dipartimento Scientifico e Tecnologico, Laboratorio di Proteomica, University of Verona, Verona, Italy, Dipartimento di Patologia, Sezione di Anatomia Patologica, University of Verona, Verona, Italy, and Dipartimento di Scienze Ambientali, University of Tuscia, Viterbo, Italy
| | - Claudia Parolini
- Dipartimento Scientifico e Tecnologico, Laboratorio di Proteomica, University of Verona, Verona, Italy, Dipartimento di Patologia, Sezione di Anatomia Patologica, University of Verona, Verona, Italy, and Dipartimento di Scienze Ambientali, University of Tuscia, Viterbo, Italy
| | - Anna Maria Timperio
- Dipartimento Scientifico e Tecnologico, Laboratorio di Proteomica, University of Verona, Verona, Italy, Dipartimento di Patologia, Sezione di Anatomia Patologica, University of Verona, Verona, Italy, and Dipartimento di Scienze Ambientali, University of Tuscia, Viterbo, Italy
| | - Lello Zolla
- Dipartimento Scientifico e Tecnologico, Laboratorio di Proteomica, University of Verona, Verona, Italy, Dipartimento di Patologia, Sezione di Anatomia Patologica, University of Verona, Verona, Italy, and Dipartimento di Scienze Ambientali, University of Tuscia, Viterbo, Italy
| | - Marco Chilosi
- Dipartimento Scientifico e Tecnologico, Laboratorio di Proteomica, University of Verona, Verona, Italy, Dipartimento di Patologia, Sezione di Anatomia Patologica, University of Verona, Verona, Italy, and Dipartimento di Scienze Ambientali, University of Tuscia, Viterbo, Italy
| |
Collapse
|
27
|
Visco C, Canal F, Parolini C, Andreoli A, Ambrosetti A, Krampera M, Lestani M, Pizzolo G, Chilosi M. The impact of P53 and P21(waf1) expression on the survival of patients with the germinal center phenotype of diffuse large B-cell lymphoma. Haematologica 2006; 91:687-90. [PMID: 16670073] [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] [Subscribe] [Scholar Register] [Indexed: 05/09/2023] Open
Abstract
Immunohistochemically detected over-expression of P53-related protein (P53+++) and absence of P21(waf1) expression (P21-) correspond to loss of function of the P53-gene in diffuse large B-cell lymphoma (DLBCL) patients. Using immunohistochemistry we examined 80 patients with DLBCL and found that 23% had the P53+++/P21- phenotype while 51% had a germinal center (GC) pattern. Both the P53+++/P21- phenotype and the non-GC pattern were associated with inferior outcome. Notably, the prognostic power of the P53+++/P21- phenotype was restricted to patients with a GC pattern, without effect on outcome of patients with a non-GC phenotype. Our results show that immunohistochemistry can parallel gene expression profiling in addressing clinical variability of DLBCL patients.
Collapse
MESH Headings
- Adult
- Aged
- Antibodies, Monoclonal/administration & dosage
- Antibodies, Monoclonal, Murine-Derived
- Antineoplastic Combined Chemotherapy Protocols/administration & dosage
- Bleomycin/administration & dosage
- Cell Cycle/genetics
- Cohort Studies
- Cyclin-Dependent Kinase Inhibitor p21/analysis
- Cyclin-Dependent Kinase Inhibitor p21/deficiency
- Cyclin-Dependent Kinase Inhibitor p21/genetics
- Cyclophosphamide/administration & dosage
- Disease-Free Survival
- Doxorubicin/administration & dosage
- Epirubicin/administration & dosage
- Etoposide/administration & dosage
- Female
- Genes, p53
- Germinal Center/pathology
- Humans
- Immunohistochemistry
- Lymphoma, Large B-Cell, Diffuse/drug therapy
- Lymphoma, Large B-Cell, Diffuse/genetics
- Lymphoma, Large B-Cell, Diffuse/mortality
- Lymphoma, Large B-Cell, Diffuse/pathology
- Lymphoma, Large B-Cell, Diffuse/radiotherapy
- Male
- Middle Aged
- Neoplasm Proteins/analysis
- Neoplasm Proteins/deficiency
- Neoplasm Proteins/genetics
- Phenotype
- Prednisone/administration & dosage
- Prognosis
- Radiotherapy, Adjuvant
- Reproducibility of Results
- Rituximab
- Survival Analysis
- Survival Rate
- Tumor Suppressor Protein p53/analysis
- Vincristine/administration & dosage
Collapse
Affiliation(s)
- Carlo Visco
- Department of Hematology, Ospedale S. Bortolo, Vicenza, Italy.
| | | | | | | | | | | | | | | | | |
Collapse
|
28
|
Rigamonti E, Disconzi E, Soldati S, Saceo M, Parolini C, Arnoldi A, Sirtori C, Lovati M, Chiesa G. We-P14:484 Reduced mammary tumor progression in a transgenic mouse model fed an isoflavone-poor soy protein concentrate. ATHEROSCLEROSIS SUPP 2006. [DOI: 10.1016/s1567-5688(06)81836-2] [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: 10/23/2022]
|
29
|
Parolini C, Caligari S, Gilio D, Montagnani M, Rubin E, Sirtori C, Chiesa G. Tu-W23:7 Effect of high cholesterol diet on cholesterol and bile acid metabolism in A-IM and A-I transgenic mice. ATHEROSCLEROSIS SUPP 2006. [DOI: 10.1016/s1567-5688(06)80654-9] [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: 11/17/2022]
|
30
|
Zamò A, Ott G, Katzenberger T, Adam P, Parolini C, Scarpa A, Lestani M, Menestrina F, Chilosi M. Establishment of the MAVER-1 cell line, a model for leukemic and aggressive mantle cell lymphoma. Haematologica 2006; 91:40-7. [PMID: 16434369] [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] [Subscribe] [Scholar Register] [Indexed: 05/06/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Mantle cell lymphoma (MCL) cell lines are difficult to generate; only nine lines have been described so far and few of them have been thoroughly characterized. DESIGN AND METHODS We established MAVER-1, a new MCL cell line, obtained from a leukemic MCL harboring both a t(11;14) translocation and a MYC rearrangement, and used immunohistochemistry, flow cytometry, molecular biology and cytogenetic techniques in order to characterize the cell line precisely. RESULTS By immunohistochemistry and flow cytometry MAVER-1 displayed a classical MCL phenotype (IgM+, l+, CD5+, CD10-, CD19+, CD20+, CD23-, CD79a+, cyclin D1+) and genetic analysis showed a typical V/D/J rearrangement with naïve mutational status. According to both classic cytogenetic analysis and spectral karyotyping, MAVER-1 harbored the t(11;14) translocation associated with a complex karyotype. Molecular analysis by polymerase chain reactions showed that the t(11;14) breakpoint is within the major translocation cluster. Other important abnormalities of MAVER-1 include TP53 gene inactivation by a combined mutation of exon 8 and chromosome 17p13 deletion, ATM deletion, 8q24 (MYC) rearrangement and 8p22 deletion. INTERPRETATION AND CONCLUSIONS The new cell line will be useful for in vitro studies regarding MCL pathogenesis and drug sensitivity, as well as a diagnostic control material.
Collapse
Affiliation(s)
- Alberto Zamò
- Department of Pathology, University of Verona, Verona, Italy.
| | | | | | | | | | | | | | | | | |
Collapse
|
31
|
Marchesi M, Parolini C, Bellotti V, Mangione P, Valetti C, Obici L, Chiesa G. Th-P15:198 Impaired secretion of two apolipoprotein A-I mutants associated with hereditary amyloidosis. ATHEROSCLEROSIS SUPP 2006. [DOI: 10.1016/s1567-5688(06)82157-4] [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: 10/23/2022]
|
32
|
Chiesa G, Johnson S, Marchesi M, Parolini C, Caligari S, Gilio D, Cornelli L, Diani E, Rigamonti E, Sirtori C. Th-W55:3 Lupin protein: A new source of cardiovascular protective agents? ATHEROSCLEROSIS SUPP 2006. [DOI: 10.1016/s1567-5688(06)81909-4] [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: 10/23/2022]
|
33
|
Menestrina N, Martini A, Milan A, Soldati G, Parolini C, Finco G, Gottin L. Crit Care 2005; 9:P150. [DOI: 10.1186/cc3213] [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: 11/10/2022] Open
|
34
|
Chiesa G, Rigamonti E, Monteggia E, Parolini C, Marchesi M, Miragoli L, Grotti A, Maggioni F, Lorusso V, Sirtori CR. Evaluation of a soft atherosclerotic lesion in the rabbit aorta by an invasive IVUS method versus a non-invasive MRI technology. Atherosclerosis 2004; 174:25-33. [PMID: 15135247 DOI: 10.1016/j.atherosclerosis.2004.01.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2003] [Revised: 01/05/2004] [Accepted: 01/22/2004] [Indexed: 10/26/2022]
Abstract
The intravascular ultrasound (IVUS) modality has rapidly gained acceptance for the measurement of arterial plaque thickness and for anatomical characterization. In view, however, of the growing interest in the direct assessment of plaque size after therapeutic modalities directly reducing plaque burden, a non-invasive method such as magnetic resonance imaging (MRI) may be of help for repeated evaluations. The two methods were compared directly on a focal plaque developed at the abdominal aortic level by a combination of local electric lesion followed by a hypercholesterolemic diet. The plaque was fully characterized histopathologically at intervals up to 120 days from lesion induction, and maximal plaque formation was detected at 90 days from electrical injury. Plaques could be well assessed by IVUS at each time point analyzed and data correlated very well to histopathologic findings (r = 0.969, P = 0.0014). The MRI technology provided reliable determinations only at 90 days after lesion induction, i.e. at maximal plaque formation, with excellent correspondence to IVUS determinations (r = 0.989, P = 0.0111). Altogether these findings indicate that the non-invasive MRI technology, when applied to the analysis of arterial plaques of adequate size, can be used successfully for plaque determination, with results comparable to the invasive IVUS technique.
Collapse
Affiliation(s)
- G Chiesa
- Department of Pharmacological Sciences, University of Milan, via Balzaretti 9, 20133 Milan, Italy
| | | | | | | | | | | | | | | | | | | |
Collapse
|
35
|
Abstract
The present research establishes standard two-dimensional (2-D) maps for control, reactive lymph node and non-Hodgkin's lymphoma (mantle cell lymphoma, MCL). Medium sensitivity, mass spectrometry compatible colloidal Coomassie has revealed a total of ca. 750 spots in each of the maps. Comparison of 2-D maps by statistical packages, such as the PDQuest, established up- and downregulation of a total of ca. 145 spots, with positive variations of up to 10-folds and negative variations of up to 13-folds in both MCL biopsies' protein extracts. Qualitative and quantitative variations in the two lymphoma samples are consistent. More than 20 proteins have been so far identified by matrix assisted laser desorption/ionisation-time of flight (MALDI-TOF)-mass spectrometry, with an additional five spots, which gave very good spectra but could not be matched to any of the presently available databases. Some of the spots, such as the 78 kDa glucose-regulated protein precursor and the glutathione S-transferase P, appear to be in common with other tumors, such as lung adenocarcinoma. Others may simply reflect overall changes in cellular metabolism and growth rate that occur during malignancy and thus might turn out to be in common with any cell population receiving any kind of stress. Some (notably T-cell leukemia/lymphoma protein 1A, TCL1, found to be 10-fold overexpressed) appear to be specific of the non-Hodgkin's lymphoma here studied. Western blot and immunohistochemical analyses were applied to obtain further information about stathmin (Op18) and TCL1, respectively.
Collapse
Affiliation(s)
- Francesca Antonucci
- Department of Agricultural and Industrial Biotechnologies, University of Verona, Italy
| | | | | | | | | | | |
Collapse
|
36
|
Splendiani G, Parolini C, Fortunato L, Sturniolo A, Costanzi S. Resistive index in chronic nephropathies: predictive value of renal outcome. Clin Nephrol 2002; 57:45-50. [PMID: 11837800 DOI: 10.5414/cnp57045] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
UNLABELLED The study of renovascular resistances by color Doppler ultrasound has become a useful diagnostic resource for nephrologists. In recent nephrological literature, many papers deal with the correlations between resistive index, anatomo-pathological patterns and renal function. AIMS In our study, we have tried to discover if resistive index represents a prognostic index of progressive renal failure. MATERIAL AND METHODS To this purpose we compared renal resistive index and blood creatinine obtained from 28 nephropathic patients at their first control, with blood creatinine values after a 3-year follow-up period. Using a linear regression test, we found a strong correlation between the initial value of resistive index and the value of creatinine variation (p = 0.006). RESULTS All of the patients with normal resistive index at the beginning maintained a stable renal function. Conversely, the patients with high resistive index at their first control showed a progressive renal failure. CONCLUSION Our study shows the reliability of resistive index in the prognostic evaluation of renal outcome.
Collapse
Affiliation(s)
- G Splendiani
- Department of Nephrology, Tor Vergata University of Rome, Italy.
| | | | | | | | | |
Collapse
|
37
|
Chiesa G, Di Mario C, Colombo N, Vignati L, Marchesi M, Monteggia E, Parolini C, Lorenzon P, Laucello M, Lorusso V, Adamian M, Franceschini G, Newton R, Sirtori CR. Development of a lipid-rich, soft plaque in rabbits, monitored by histology and intravascular ultrasound. Atherosclerosis 2001; 156:277-87. [PMID: 11395023 DOI: 10.1016/s0021-9150(00)00655-9] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lipid rich, soft plaques in the clinic are a common forerunner to occlusive thrombus formation, even with modest arterial stenosis. Animal models of atherosclerosis, obtained by various methods, do not generally allow direct in vivo evaluation of the lesion and, furthermore, cannot be examined more than once. The aim of the study was the generation of a rabbit model of atherosclerosis, with morphological characteristics similar to human lipid-rich, soft atheromatous plaques, and the evaluation of the reliability of intravascular ultrasound (IVUS) technology in the study of the development of atherosclerotic lesions in this model. Briefly, New Zealand white rabbits undergo perivascular electrical injury at both common carotid arteries, together with a 1.5% cholesterol diet for up to 90 days. The lesioned arterial segments show progressive changes, from diffuse cellular mortality, to macrophage infiltration in the media, up to the final migration of macrophages to the neointima, resulting in bulky, eccentric, macrophage and lipid-rich lesions. At IVUS, the produced lesions clearly resemble those described as 'soft plaques' in the clinical setting, with minimal calcification and reduced echo-reflectivity versus the adventitial layer. Quantitative and morphometric analysis of plaques shows a significant correlation between histological and IVUS measurements at each time point. In conclusion, vascular injury in the common carotids of rabbits generates atherosclerotic lipid-rich, soft plaques, that can be properly assessed by the IVUS methodology. The easy accessibility of the arterial lesion allows serial IVUS investigations and the direct evaluation of a number of locally or generally delivered therapeutic agents.
Collapse
Affiliation(s)
- G Chiesa
- Institute of Pharmacological Sciences, University of Milano, via Balzaretti 9, 20133, Milano, Italy
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
38
|
Franceschini G, Calabresi L, Chiesa G, Parolini C, Sirtori CR, Canavesi M, Bernini F. Increased cholesterol efflux potential of sera from ApoA-IMilano carriers and transgenic mice. Arterioscler Thromb Vasc Biol 1999; 19:1257-62. [PMID: 10323777 DOI: 10.1161/01.atv.19.5.1257] [Citation(s) in RCA: 90] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The ability of HDL to remove cholesterol from peripheral cells and drive it to the liver for excretion is believed to explain most of the strong inverse correlation between plasma HDL cholesterol levels and coronary heart disease. Carriers of the ApoA-IMilano (A-IM) mutant have a severe hypoalphalipoproteinemia but are not at increased risk for premature of coronary heart disease. To explain this apparent paradox, we compared the capacity of serum from A-IM and control subjects to extract cholesterol from Fu5AH cells. Because the A-IM carriers are all heterozygotes for the mutation, we also compared the cholesterol efflux capacity of serum from transgenic mice expressing A-IM or wild-type ApoA-I (A-IWT), in the absence of murine ApoA-I. In the whole series of human or mouse sera, cholesterol efflux was significantly correlated with several HDL-related parameters; after adjustment for concomitant variables, the only parameter that remained significantly correlated with cholesterol efflux was the serum ApoA-I concentration (r2=0.85 in humans and 0.84 in mice). The same was true when samples from control subjects, A-IM carriers, A-IWT or A-IM mice were analyzed separately. Cholesterol efflux to sera from the A-IM carriers was only reduced slightly compared with control sera (25.0+/-4.2% versus 30.4+/-3.3%), although there was a large reduction (-45%) in the serum ApoA-I concentration in the former. Cholesterol efflux was also lower to sera from A-IM than A-IWT mice (15.6+/-3.8% versus 30. 1+/-7.1%), but less than expected from the 70% reduction in serum ApoA-I concentration. A relative efflux potential of serum was calculated in each group as the slope of the regression line fitting cholesterol efflux to ApoA-I concentrations. Therefore, the relative efflux potential reflects the relative efficiency of ApoA-I in determining cell cholesterol efflux. The relative efflux potential of mouse and human sera was in the following order: A-IM mice>A-IM carriers>A-IWT mice=control subjects, suggesting a gene-dosage effect of the A-IM mutation on the efficiency of serum to extract cholesterol from cells. The high efficiency of A-IM-containing HDL for cell cholesterol uptake would result in an improved reverse cholesterol transport in the A-IM carriers, possibly explaining the low susceptibility to atherosclerosis development.
Collapse
Affiliation(s)
- G Franceschini
- Center E. Grossi Paoletti and Institute of Pharmacological Sciences, University of Milano, Italy.
| | | | | | | | | | | | | |
Collapse
|
39
|
Chiesa G, Parolini C, Canavesi M, Colombo N, Sirtori CR, Fumagalli R, Franceschini G, Bernini F. Human apolipoproteins A-I and A-II in cell cholesterol efflux: studies with transgenic mice. Arterioscler Thromb Vasc Biol 1998; 18:1417-23. [PMID: 9743230 DOI: 10.1161/01.atv.18.9.1417] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The first step in reverse cholesterol transport is the movement of cholesterol out of cells onto lipoprotein acceptors in the interstitial fluid. The contribution of specific lipoprotein components to this process remains to be established. In this study, the role of human apolipoproteins (apo) A-I and A-II in the efflux of cellular cholesterol was investigated in transgenic mouse models in which the expression of murine apoA-I was abolished due to gene targeting (A-IKO). Serum from A-IKO mice and from mice expressing human apoA-I and/or human apoA-II was incubated with [3H]cholesterol-labeled Fu5AH rat hepatoma cells for 4 hours at 37 degrees C. The cholesterol efflux to the serum of A-IKO mice was markedly lower than that to the serum of mice transgenic for human apoA-I (5.0 +/- 1.5% versus 25.0 +/- 4.0%). Expression of human apoA-II alone did not modify the cholesterol efflux capacity of A-IKO mouse serum. Cholesterol efflux to serum of mice expressing human apoA-II together with human apoA-I was significantly lower than that to human apoA-I mouse serum (20.0 +/- 2.3% versus 25.0 +/- 4.0%). Regression analysis of cholesterol efflux versus the lipid/apolipoprotein concentrations of mouse serum suggested that 3 independent factors contribute to determine the cholesterol efflux potential of serum: the apolipoprotein composition of HDL, the serum concentration of HDL phospholipids, and the presence of a small fraction of particles containing apoA-I.
Collapse
Affiliation(s)
- G Chiesa
- Center E. Grossi Paoletti and Institute of Pharmacological Sciences, University of Milano, Italy
| | | | | | | | | | | | | | | |
Collapse
|
40
|
Chiesa G, Bielicki J, Parolini C, Colombo N, Milia M, Vignati L, Franceschini G, Forte T, Rubin E, Sirtori C. Lipid metabolism in mice expressing human apolipoprotein A-IMilano. Atherosclerosis 1997. [DOI: 10.1016/s0021-9150(97)89978-9] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
41
|
Sacco MG, Zecca L, Bagnasco L, Chiesa G, Parolini C, Bromley P, Catò EM, Roncucci R, Clerici LA, Vezzoni P. A transgenic mouse model for the detection of cellular stress induced by toxic inorganic compounds. Nat Biotechnol 1997; 15:1392-7. [PMID: 9415893 DOI: 10.1038/nbt1297-1392] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Transgenic mice for genotoxicity testing have been developed, although no such models have been produced for the evaluation of toxic, nongenotoxic chemical compounds. We have developed a transgenic mouse model for the analysis of toxic inorganic compounds. We engineered a mouse lineage with the human growth hormone (hGH) gene under the control of the human hsp70 promoter, in which a plasma-detectable hGH response can be elicited by exposure to heat shock. In primary cell cultures from these mice, hGH release was observed following treatment with several toxic inorganics. Transgenic mice injected intraperitoneally with sodium arsenite, cadmium chloride, copper sulphate, or methylmercurium chloride showed significant hGH levels in plasma.
Collapse
Affiliation(s)
- M G Sacco
- Institute of Advanced Biomedical Technologies, National Research Council, Milan, Italy.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
42
|
Parolini C, Colombo N, Milia M, Vignati L, Franceschini G, Sirtori C, Chiesa G. 1.P.89 Mechanism of hypertriglyceridemia in human apolipoprotein A-IMilano transgenic mice. Atherosclerosis 1997. [DOI: 10.1016/s0021-9150(97)88268-8] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
43
|
Soma MR, Donetti E, Parolini C, Sirtori CR, Fumagalli R, Franceschini G. Recombinant apolipoprotein A-IMilano dimer inhibits carotid intimal thickening induced by perivascular manipulation in rabbits. Circ Res 1995; 76:405-11. [PMID: 7859387 DOI: 10.1161/01.res.76.3.405] [Citation(s) in RCA: 68] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Apolipoprotein A-IMilano (apoA-IM), a natural variant of apolipoprotein A-I (apoA-I), confers to the carriers a significant protection against vascular disease. The antiatherogenic activity of a recombinant disulfide-linked apoA-IM dimer (rA-IM/A-IM) was analyzed in vivo by evaluating its effect on neointimal formation induced by periarterial manipulation in 1% cholesterol-fed rabbits. A flexible collar was applied around the carotid artery 21 days after the beginning of the dietary regimen, and animals were killed 10 days later. Rabbits were injected five times with reconstituted high-density lipoprotein containing egg phosphatidylcholine (EPC) and rA-IM/A-IM (119 mg EPC + 40 mg protein per dose) or with EPC liposomes (119 mg EPC per dose) beginning either 5 days before or at the day of collar positioning. Neither treatment affected plasma cholesterol levels. A significant intimal thickening was observed in control animals; the intima-to-media (I/M) ratio was 0.63 +/- 0.11 versus 0.03 +/- 0.05 for the sham-operated contralateral arteries. Neointimal formation was markedly inhibited in animals pretreated with rA-IM/A-IM before lesion induction (I/M, 0.26 +/- 0.19) but not in those in which treatment began the day of collar insertion (I/M, 0.74 +/- 0.14). EPC liposomes did not affect neointimal formation (I/M, 0.50 +/- 0.14 and 0.51 +/- 0.07 in the two treatment groups). Proliferation of smooth muscle cells, assessed by direct incorporation of bromo-2'-deoxyuridine (BrdU) into replicating DNA, was reduced by approximately 30% and 75% in the intimal and medial tissues of rA-IM/A-IM-pretreated rabbits.(ABSTRACT TRUNCATED AT 250 WORDS)
Collapse
Affiliation(s)
- M R Soma
- Institute of Pharmacological Sciences, University of Milano, Italy
| | | | | | | | | | | |
Collapse
|
44
|
Soma M, Donetti E, Parolini C, Calabresi L, Sirtori C, Fumagalli R, Franceschini G. Recombinant apolipoprotein A-IMilano dimer inhibits carotid intimal thickening in hypercholesterolemic rabbits. Atherosclerosis 1994. [DOI: 10.1016/0021-9150(94)94288-9] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
45
|
Soma M, Parolini C, Donetti E, Raitert M, Arnaboldi L, Paoletti R, Fumagalli R, Corsini A. Inhibition of isoprenoid biosynthesis and arterial smooth muscle cell proliferation. Atherosclerosis 1994. [DOI: 10.1016/0021-9150(94)94287-0] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
46
|
Soma MR, Donetti E, Parolini C, Barberi L, Paoletti R, Fumagalli R, Catapano AL. Effect of lacidipine on the carotid intimal hyperplasia induced by cuff injury. J Cardiovasc Pharmacol 1994; 23 Suppl 5:S71-4. [PMID: 7609512 DOI: 10.1097/00005344-199423005-00015] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The in vivo antiatherogenic activity of the calcium antagonist lacidipine was investigated in arterial hyperplasia induced by perivascular manipulation of hypercholesterolemic carotid rabbits. This was accomplished by positioning a hollow silastic collar around one carotid, which within a few days induces an atherosclerotic lesion (proliferative lesion) showing biochemical and morphologic changes similar to those of early human atherosclerosis: the contralateral carotid, with no collar, served as control in the same animal. The effect of lacidipine was also investigated in aortic atherosclerotic lesions (fatty lesions) induced by hypercholesterolemia mixed with either cholesterol (1%) and lacidipine (3 mg/kg/day) or cholesterol (1%) alone for 8 weeks. Hypercholesterolemic New Zealand White rabbits were fed daily a standard diet. Intimal hyperplasia was mechanically induced in one carotid artery of each rabbit 6 weeks after dietary and drug treatment started. Neointimal formation was followed by measuring by light microscopy the cross-sectional thickness of intimal (I) and medial (M) tissue of fixed arteries. In positive control animals receiving dietary cholesterol only (n = 10), by 14 d after collar positioning the process of intimal hyperplasia was significantly pronounced. The control arteries showed an I:M tissue ratio of 0.03 +/- 0.02, whereas in the carotid with collar the ratio was 0.56 +/- 0.11. In the animals receiving lacidipine, neointimal formation was significantly lower [I:M tissue ratio 0.32 +/- 0.1 (n = 10), about 60% of positive controls]. Measurement of the percent area of the aortic intima covered by plaques did not show significant differences between control and lacidipine-treated animals. These results suggest a direct antiatherosclerotic effect of lacidipine on proliferative lesions.
Collapse
Affiliation(s)
- M R Soma
- Institute of Pharmacological Sciences, University of Milan, Italy
| | | | | | | | | | | | | |
Collapse
|
47
|
Soma MR, Donetti E, Parolini C, Mazzini G, Ferrari C, Fumagalli R, Paoletti R. HMG CoA reductase inhibitors. In vivo effects on carotid intimal thickening in normocholesterolemic rabbits. Arterioscler Thromb 1993; 13:571-8. [PMID: 8466892 DOI: 10.1161/01.atv.13.4.571] [Citation(s) in RCA: 147] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The in vivo activity of different 3-hydroxy-3-methylglutaryl coenzyme A (HMG CoA) reductase inhibitors (vastatins) on neointimal formation induced by insertion of a flexible collar around one carotid artery of normocholesterolemic rabbits was investigated. The contralateral carotid artery served as a sham control. Pravastatin, lovastatin, simvastatin, and fluvastatin were given mixed with food at daily doses of 20 mg/kg body wt for 2 weeks starting on the day of collar placement. The treatment with vastatins did not modify rabbit plasma cholesterol concentrations. The neointimal formation was assessed by measuring the cross-sectional thickness of intimal and medial tissues of fixed arteries with light microscopy. Fourteen days after collar placement, intimal hyperplasia (mostly cellular) was pronounced in treated carotid arteries. The intimal/medial (I/M) tissue ratio was 12-fold higher in treated arteries than in arteries without the collar (0.36 +/- 0.04 versus 0.03 +/- 0.02). Animals treated with lovastatin (n = 12), simvastatin (n = 12), and fluvastatin (n = 12) showed significantly less neointimal formation; I/M tissue ratios were 0.24 +/- 0.03, 0.20 +/- 0.03, and 0.17 +/- 0.03, respectively. The inhibition elicited by pravastatin (n = 12, 0.32 +/- 0.03) did not reach statistical significance. alpha-Actin antibody immunofluorescence analysis of serial sections revealed that cells present in the hyperplastic intima were mostly myocytes. Rates of intimal myocyte proliferation were also measured by incorporation of 5-bromo-2'-deoxyuridine, a thymidine analogue, into replicating DNA. Immunofluorescence analysis showed that 5-bromo-2'-deoxyuridine was actively incorporated into intimal myocytes after ++reinsertion of the collar, with a labeling index (percent of labeled myocytes) of 2.15 after 14 days.(ABSTRACT TRUNCATED AT 250 WORDS)
Collapse
Affiliation(s)
- M R Soma
- Institute of Pharmacological Sciences, University of Milan, Italy
| | | | | | | | | | | | | |
Collapse
|
48
|
Parolini C, Faraggiana T, Lupo A, Previato G, Maschio G. [Ultrastructural changes indicative of previous acute glomerulonephritis in proliferative mesangial glomerulonephritis]. Minerva Nefrol 1980; 27:305-9. [PMID: 7219853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
|
49
|
Lupo A, Faraggiana T, Previato G, Valvo E, Parolini C, Lo Schiavo C, Tessitore N, Maschio G. [Focal glomerulosclerosis. Optic and electron microscopy study, immunofluorescence and follow-up of 24 cases]. Minerva Nefrol 1979; 26:209-12. [PMID: 471352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
50
|
Faraggiana T, Parolini C, Previato G, Lupo A. Light and electron microscopic findings in five cases of cryoglobulinemic glomerulonephritis. Virchows Arch A Pathol Anat Histol 1979; 384:29-44. [PMID: 159543 DOI: 10.1007/bf00427149] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Renal tissue from five patients with cryoglobulinemia was studied by light and electron microscopy and immunofluorescence. None of the histologic features observed at the light microscopic level seems to be specific for cryoglobulinemia. Electron microscopic investigations have shown very large electron dense deposits in almost every examined lobule in all cases. The deposits displayed two main patterns; a homogeneous texture in two cases and tubular or annular structures in three cases. The patients with typically structured deposits had IgG-IgM cryoglobulinemia (2 cases) or monoclonal IgM cryoglobulinemia (1 case). The presence of IgM in cryoglobulinemia may be the cause of the peculiar structure of the deposits.
Collapse
|