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Pecci F, Cantini L, Cognigni V, Murrone A, Monaco F, Rubini C, Barbisan F, Copparoni C, Rinaldi S, Fiordoliva I, Di Pietro Paolo M, Scarpelli M, Tomasetti M, Santarelli L, Berardi R. 1905P BAP1 and miR-31 combination predicts outcome in epithelioid malignant pleural mesothelioma. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Jung IDC, Duarte T, da Cruz I, .O.Turra B, Chitolina B, Motta J, Montano M, .F.Azzolin V, Ribeiro E, Duarte M, Barbisan F. Research Article Val16Ala-SOD2 polymorphism modulates hypothalamic-pituitary-adrenal axis molecules and BDNF levels in healthy adults under no psychological stress. Genet Mol Res 2020. [DOI: 10.4238/gmr18586] [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: 11/03/2022]
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3
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Arena S, Salati M, Sorgentoni G, Barbisan F, Orciani M. Characterization of tumor-derived mesenchymal stem cells potentially differentiating into cancer-associated fibroblasts in lung cancer. Clin Transl Oncol 2018; 20:1582-1591. [DOI: 10.1007/s12094-018-1894-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 05/11/2018] [Indexed: 02/04/2023]
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Mengoli MC, Longo FR, Fraggetta F, Cavazza A, Dubini A, Alì G, Guddo F, Gilioli E, Bogina G, Nannini N, Barbisan F, De Rosa N, Falconieri G, Rossi G, Graziano P. The 2015 World Health Organization Classification of lung tumors: new entities since the 2004 Classification. Pathologica 2018; 110:39-67. [PMID: 30259912] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023] Open
Abstract
In the last few years different new pulmonary neoplastic lesions have been recognised and some of them, namely NUT carcinoma, PEComatous tumors, pneumocytic adenomyoepithelioma, pulmonary myxoid sarcoma, myoepithelial tumors/carcinomas entered in the last 2015-WHO classification of lung tumors. In addition angiomatoid fibrous histiocytoma and ciliated muconodular papillary tumor have been morphologically and genetically characterized albeit not yet included in the 2015-WHO classification. In the present paper we summarised the clinical, morphological, immunohistochemical and molecular features of these new entities. The knowledge of key histologic and molecular characteristics may help pathologists in achieving a correct diagnosis thus leading to an adequate therapeutic approach.
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Affiliation(s)
- M C Mengoli
- Pathology Unit, Azienda Unità Sanitaria Locale/IRCCS Reggio Emilia
| | - F R Longo
- Pathology Unit, Azienda Ospedaliera per l'Emergenza Cannizzaro Hospital, Catania, Italy
| | - F Fraggetta
- Pathology Unit, Azienda Ospedaliera per l'Emergenza Cannizzaro Hospital, Catania, Italy
| | - A Cavazza
- Pathology Unit, Arcispedale S. Maria Nuova/IRCCS, Reggio Emilia, Italy
| | - A Dubini
- Pathology Unit, Morgagni-Pierantoni Hospital, Forlì, Italy
| | - G Alì
- Pathology Unit, University Hospital of Pisa, Italy
| | - F Guddo
- Pathology Unit, Ospedale V. Cervello, Palermo, Italy
| | - E Gilioli
- Pathology Unit, University and Hospital Trust, Verona, Italy
| | - G Bogina
- Pathology Unit, Sacro Cuore Don Calabria Hospital, Negrar, Verona, Italy
| | - N Nannini
- Department of Cardiothoracic and Vascular Sciences, University of Padova, Italy
| | - F Barbisan
- Pathology Unit, Ospedali Riuniti of Ancona, Italy
| | - N De Rosa
- Department of Oncology and Anatomic Pathology, Hospital Vincenzo Monaldi of Napoli, Italy
| | - G Falconieri
- Department of Pathology, Policlinico di Cattinara, University of Trieste, Italy
| | - G Rossi
- Pathology Unit, Azienda USL Valle d'Aosta, Regional Hospital "Parini", Aosta, Italy
| | - P Graziano
- Pathology Unit, IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Foggia, Italy
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Massaccesi C, Colella S, Fioretti F, D'Emilio V, Panella G, Primomo G, Barbisan F, Pela R, Poletti V. An unusual thoracic localizations of Erdheim- Chester disease: A case report. Respir Med Case Rep 2017; 20:116-119. [PMID: 28149747 PMCID: PMC5271674 DOI: 10.1016/j.rmcr.2017.01.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 01/10/2017] [Accepted: 01/11/2017] [Indexed: 02/08/2023] Open
Abstract
Erdheim- Chester disease is a rare non- Langerhans cell histiocytosis that usually involves the bones, heart, central nervous system, retroperitoneum, eyes, kidneys, skin and adrenals. Lungs are affected in up to one-half cases; at CT scan various patterns are described: interstitial disease, consolidations, micronodules and microcysts, with or without pleural involvement. We presented a case of a 59 year-old man with unusual intrathoracic manifestation of Erdheim- Chester disease. Singularities of our report are the lonely thoracic involvement at the onset of the disease and a histiocytic lesion in the posterior mediastinum.
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Affiliation(s)
- C Massaccesi
- Pulmonary Unit, "C. e G. Mazzoni" Hospital, Ascoli Piceno, Italy
| | - S Colella
- Pulmonary Unit, "C. e G. Mazzoni" Hospital, Ascoli Piceno, Italy
| | - F Fioretti
- Pulmonary Unit, "C. e G. Mazzoni" Hospital, Ascoli Piceno, Italy
| | - V D'Emilio
- Pulmonary Unit, "C. e G. Mazzoni" Hospital, Ascoli Piceno, Italy
| | - G Panella
- Pulmonary Unit, "C. e G. Mazzoni" Hospital, Ascoli Piceno, Italy
| | - G Primomo
- Pulmonary Unit, "C. e G. Mazzoni" Hospital, Ascoli Piceno, Italy
| | - F Barbisan
- Department of Pathology, "Ospedali Riuniti", Ancona, Italy
| | - R Pela
- Pulmonary Unit, "C. e G. Mazzoni" Hospital, Ascoli Piceno, Italy
| | - V Poletti
- Department of Diseases of the Thorax, GB Morgagni Hospital, Forlì, Italy; Department of Respiratory Diseases and Allergy, Aarhus University Hospital, Aarhus, Denmark
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6
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Lovato FL, de Oliveira CR, Adedara IA, Barbisan F, Moreira KLS, Dalberto M, da Rocha MIUM, Marroni NP, da Cruz IB, Costabeber IB. Quercetin ameliorates polychlorinated biphenyls-induced testicular DNA damage in rats. Andrologia 2016; 48:51-8. [PMID: 25892208 DOI: 10.1111/and.12417] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [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] [Accepted: 02/17/2015] [Indexed: 12/12/2022] Open
Abstract
Polychlorinated biphenyls (PCBs) are a group of environmental contaminants widely reported to cause gonadal toxicity in both humans and animals. This study investigated the amelioratory role of quercetin in PCBs-induced DNA damage in male Wistar rats. Polychlorinated biphenyls were administered intraperitoneally at a dose of 2 mg kg(-1) alone or in combination with quercetin (orally) at 50 mg kg(-1) for 25 days. Quercetin modulation of PCBs-induced gonadal toxicity was evaluated using selected oxidative stress indices, comet assay, measurement of DNA concentration and histology of the testes. Administration of PCBs alone caused a significant (P < 0.05) depletion in the total thiol level in testes of treated rats. Conversely, the levels of reactive oxygen species (ROS) and thiobarbituric acid reactive substances (TBARS) production were markedly elevated in testes of PCBs-treated rats compared with control. Further, PCBs exposure produced statistically significant increases in DNA tail migration, degraded double-stranded DNA (dsDNA) concentration and histological alterations of testes of the treated rats compared to control. Quercetin cotreatment significantly improved the testicular antioxidant status, decreased DNA fragmentation and restored the testicular histology, thus demonstrating the protective effect of quercetin in PCBs-treated rats.
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Affiliation(s)
- F L Lovato
- Departamento de Bioquímica e Biologia Molecular, CCNE, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - C R de Oliveira
- Programa de Pós-Graduação BioSaúde, Universidade Luterana do Brasil, Canoas, RS, Brazil
| | - I A Adedara
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - F Barbisan
- Laboratório de Biogenômica, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - K L S Moreira
- Laboratório de Morfofisiologia Experimental, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - M Dalberto
- Laboratório de Biogenômica, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - M I U M da Rocha
- Laboratório de Morfofisiologia Experimental, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - N P Marroni
- Programa de Pós-Graduação BioSaúde, Universidade Luterana do Brasil, Canoas, RS, Brazil
- Laboratório de Hepatologia e Gastroenterologia Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
- Laboratório de Estresse Oxidativo e Antioxidantes, Universidade Luterana do Brasil, Canoas, RS, Brazil
- Programa de Pós-Graduação Fisiologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Programa de Pós-Graduação Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - I B da Cruz
- Laboratório de Biogenômica, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - I B Costabeber
- Laboratório de Poluentes Persistentes, Departamento de Morfologia, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
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Silva TO, Jung IEC, Moresco RN, Barbisan F, Ribeiro EE, Ribeiro EAM, Motta K, Britto E, Tasch E, Bochi G, Duarte MMF, Oliveira AR, Marcon M, Belló C, dos Santos Montagner GF, da Cruz IBM. Association between advanced oxidation protein products and 5-year mortality risk among amazon riparian elderly population. Free Radic Res 2014; 49:204-9. [PMID: 25496432 DOI: 10.3109/10715762.2014.992895] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [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: 12/27/2022]
Abstract
Proteins are important targets of several modifications caused by oxidative stress, leading to structural changes and consequently partial or total loss of their functions. The oxidized proteins include advanced oxidation protein products (AOPP) derived from oxidation-modified albumin, as well as fibrinogen and lipoproteins. An increase in AOPP levels indicates an oxidative stress state and the presence of coexisting inflammation. Several investigations have also suggested an association between high AOPP levels and aging-related diseases. However, the link between elevated AOPP levels and elderly mortality risk has not yet been investigated. Here, we report on a 5-year longitudinal study that investigated the potential association between AOPP levels and mortality using a population-based representative sample of riparian elders living in Brazilian Amazon region (Maués-AM). Age, sex, socioeconomic and cultural conditions, chronic morbidities, polypharmacy, and previous morbidities were also tested as potential confounders. The AOPP levels were measured in 540 (84.78%) individuals, all of whom were followed over a 5-year period in order to establish the mortality rate. Within this study period, 74 (13.7%) elders died and 466 (86.3%) survived. The AOPP levels were higher among the elders who died within the 5-year period (46.27 ± 40.6 mmol/L) compared with those who survived (36.79 ± 20.84 mmol/L) (p = 0.002). The analysis confirmed the link between high AOPP levels and mortality risk, independent of other intervenient factors. These results suggest that elevated AOPP levels could be used to predict mortality risk in elderly patients.
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Affiliation(s)
- T O Silva
- Programa de Pós-Graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria , Brazil
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8
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Polgar G, Zane L, Babbucci M, Barbisan F, Patarnello T, Rüber L, Papetti C. Phylogeography and demographic history of two widespread Indo-Pacific mudskippers (Gobiidae: Periophthalmus). Mol Phylogenet Evol 2014; 73:161-76. [PMID: 24486991 DOI: 10.1016/j.ympev.2014.01.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [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: 07/25/2013] [Revised: 12/22/2013] [Accepted: 01/17/2014] [Indexed: 11/18/2022]
Abstract
This study provides a first description of the phylogeographic patterns and evolutionary history of two species of the mudskipper genus Periophthalmus. These amphibious gobies are distributed throughout the whole Indo-Pacific region and Atlantic coast of Africa, in peritidal habitats of soft-bottom coastal ecosystems. Three sequence datasets of two widely distributed species, Periophthalmus argentilineatus and P. kalolo, were obtained by amplifying and sequencing two mtDNA markers (D-loop and 16S rDNA) and the nDNA rag1 region. The three datasets were then used to perform phylogeographic, demographic and population genetic analyses. Our results indicate that tectonic events and past climatic oscillations strongly contributed to shape present genetic differentiation, phylogeographic and demographic patterns. We found support for the monophyly of P. kalolo, and only shallow genetic differentiation between East-African and Indo-Malayan populations of this species. However, our collections of the morphospecies P. argentilineatus include three molecularly distinct lineages, one of them more closely related to P. kalolo. The presence of Miocenic timings for the most recent common ancestors of some of these morphologically similar clades, suggests the presence of strong stabilising selection in mudskippers' habitats. At population level, demographic analyses and palaeoecological records of mangrove ecosystems suggest that Pleistocene bottlenecks and expansion plus secondary contact events of the studied species were associated with recurrent sea transgressions during interglacials, and sea regressions or stable regimes during glacials, respectively.
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Affiliation(s)
- G Polgar
- Department of Biology, Universiti Brunei Darussalam, Bandar Seri Begawan, Gadong, Negara, Brunei Darussalam; Institute of Ocean and Earth Science, University of Malaya, Kuala Lumpur, Malaysia.
| | - L Zane
- Department of Biology, University of Padova, via G. Colombo 3, 35121 Padova, Italy
| | - M Babbucci
- Department of Comparative Biomedicine and Food Science, University of Padova, viale dell'Università 16, Agripolis 35020, Legnaro (PD), Italy
| | - F Barbisan
- Department of Biology, University of Padova, via G. Colombo 3, 35121 Padova, Italy
| | - T Patarnello
- Department of Comparative Biomedicine and Food Science, University of Padova, viale dell'Università 16, Agripolis 35020, Legnaro (PD), Italy
| | - L Rüber
- Naturhistorisches Museum der Burgergemeinde Bern, Bernastrasse 15, 3005 Bern, Switzerland
| | - C Papetti
- Department of Biology, University of Padova, via G. Colombo 3, 35121 Padova, Italy
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Algarve TD, Barbisan F, Ribeiro EE, Duarte MMMF, Mânica-Cattani MF, Mostardeiro CP, Lenz AF, da Cruz IBM. In vitro effects of Ala16Val manganese superoxide dismutase gene polymorphism on human white blood cells exposed to methylmercury. Genet Mol Res 2013; 12:5134-44. [PMID: 24301773 DOI: 10.4238/2013.october.29.7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Environmental contamination by methylmercury (MeHg) is an enormous public health problem in world regions such as Amazonia. MeHg toxic effects seem to be influenced by environmental and genetic factors. However, few studies have evaluated the genetic influences of MeHg toxicity in humans. Therefore, the aim of this study was to evaluate the genetic influence of Ala16Val manganese superoxide dismutase gene polymorphism (Ala16Val-MnSOD) on the cytotoxic effects of in vitro human leukocytes exposed to MeHg. Subjects were selected from 100 individuals aged 26.4 ± 7.3 years genotyped to Ala16Val-MnSOD polymorphism (AA = 6, VV = 6, and AV = 12) to perform in vitro testing using white blood cells (WBCs). Reactive oxygen species production was measured using 2',7'-dichlorofluorescein diacetate fluorimetric assay, and cell viability was measured using MTT assay on WBC samples from the same subjects that were both exposed and not exposed to MeHg (2.5 µM for 6 h). The results showed that AA- and VV-WBCs exposed to MeHg did not display increased reactive oxygen species levels compared to those in cells that were not exposed. However, AV-leukocytes exposed to MeHg displayed increased ROS levels. Cellular viability comparison among genotypes exposed to MeHg showed that the viability of AA-WBCs was lower than that of VV-WBC, with mean values of 3.46 ± 0.13 and 3.08 ± 0.77 (standard error), respectively (P = 0.033), whereas heterozygous cells (AV) displayed intermediate values. This difference was likely due to the higher basal H2O2 production of AA-WBCs compared to that of other genotypes. These results suggest that the Ala16Val-MnSOD polymorphism has toxicogenetic effects in human cells exposed to MeHg.
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Affiliation(s)
- T D Algarve
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil
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Bittencourt L, Machado D, Machado M, Dos Santos G, Algarve T, Marinowic D, Ribeiro E, Soares F, Barbisan F, Athayde M, Cruz I. The protective effects of guaraná extract (Paullinia cupana) on fibroblast NIH-3T3 cells exposed to sodium nitroprusside. Food Chem Toxicol 2013; 53:119-25. [DOI: 10.1016/j.fct.2012.11.041] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2012] [Revised: 11/24/2012] [Accepted: 11/26/2012] [Indexed: 02/06/2023]
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Scarpelli M, Mazzucchelli R, Barbisan F, Santinelli A, Lopez-Beltran A, Cheng L, Montironi R. Is there a role for prostate tumour overexpressed-1 in the diagnosis of HGPIN and of prostatic adenocarcinoma? A comparison with alpha-methylacyl CoA racemase. Int J Immunopathol Pharmacol 2012; 25:67-74. [PMID: 22507319 DOI: 10.1177/039463201202500109] [Citation(s) in RCA: 6] [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] [Indexed: 11/17/2022] Open
Abstract
Prostate Tumour Overexpressed-1 (PTOV1) was recently identified as a novel gene and protein during a differential display screening for genes overexpressed in prostate cancer (PCa). Alpha-Methyl-CoA racemase (AMACR) mRNA was identified as being overexpressed in PCa. PTOV1 and racemase were immunohistochemically evaluated in PCa, high-grade prostatic intraepithelial neoplasia (HGPIN), atrophy and normal-looking epithelium (NEp) in 20 radical prostatectomies (RPs) with pT2a Gleason score 6 prostate cancer with the aim of analyzing the differences in marker expression between PTOV1 and AMACR. The level of expression of PTOV1 and AMACR increased from NEp and atrophy through HGPIN, away from and adjacent to prostate cancer, to PCa. With the ROC curve analysis the overall accuracy in distinguishing PCa vs HGPIN away from and adjacent to cancer was higher for AMACR than for PTOV1. In conclusion, AMACR can be considered a more accurate marker than PTOV1 in the identification of HGPIN and of PCa. However, PTOV1 may aid in the diagnosis of PCa, at least to supplement AMACR as another positive marker of carcinoma and to potentially increase diagnostic accuracy.
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Affiliation(s)
- M Scarpelli
- Section of Pathological Anatomy, Polytechnic University of the Marche Region, School of Medicine, United Hospitals, Ancona, Italy
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Agata K, Alasaad S, Almeida-Val VMF, Alvarez-Dios JA, Barbisan F, Beadell JS, Beltrán JF, Benítez M, Bino G, Bleay C, Bloor P, Bohlmann J, Booth W, Boscari E, Caccone A, Campos T, Carvalho BM, Climaco GT, Clobert J, Congiu L, Cowger C, Dias G, Doadrio I, Farias IP, Ferrand N, Freitas PD, Fusco G, Galetti PM, Gallardo-Escárate C, Gaunt MW, Ocampo ZG, Gonçalves H, Gonzalez EG, Haye P, Honnay O, Hyseni C, Jacquemyn H, Jowers MJ, Kakezawa A, Kawaguchi E, Keeling CI, Kwan YS, La Spina M, Lee WO, Leśniewska M, Li Y, Liu H, Liu X, Lopes S, Martínez P, Meeus S, Murray BW, Nunes AG, Okedi LM, Ouma JO, Pardo BG, Parks R, Paula-Silva MN, Pedraza-Lara C, Perera OP, Pino-Querido A, Richard M, Rossini BC, Samarasekera NG, Sánchez A, Sanchez JA, Santos CHDA, Shinohara W, Soriguer RC, Sousa ACB, Sousa CFDS, Stevens VM, Tejedo M, Valenzuela-Bustamante M, Van de Vliet MS, Vandepitte K, Vera M, Wandeler P, Wang W, Won YJ, Yamashiro A, Yamashiro T, Zhu C. Permanent genetic resources added to Molecular Ecology Resources Database 1 December 2010-31 January 2011. Mol Ecol Resour 2011; 11:586-9. [PMID: 21457476 DOI: 10.1111/j.1755-0998.2011.03004.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This article documents the addition of 238 microsatellite marker loci to the Molecular Ecology Resources Database. Loci were developed for the following species: Alytes dickhilleni, Arapaima gigas, Austropotamobius italicus, Blumeria graminis f. sp. tritici, Cobitis lutheri, Dendroctonus ponderosae, Glossina morsitans morsitans, Haplophilus subterraneus, Kirengeshoma palmata, Lysimachia japonica, Macrolophus pygmaeus, Microtus cabrerae, Mytilus galloprovincialis, Pallisentis (Neosentis) celatus, Pulmonaria officinalis, Salminus franciscanus, Thais chocolata and Zootoca vivipara. These loci were cross-tested on the following species: Acanthina monodon, Alytes cisternasii, Alytes maurus, Alytes muletensis, Alytes obstetricans almogavarii, Alytes obstetricans boscai, Alytes obstetricans obstetricans, Alytes obstetricans pertinax, Cambarellus montezumae, Cambarellus zempoalensis, Chorus giganteus, Cobitis tetralineata, Glossina fuscipes fuscipes, Glossina pallidipes, Lysimachia japonica var. japonica, Lysimachia japonica var. minutissima, Orconectes virilis, Pacifastacus leniusculus, Procambarus clarkii, Salminus brasiliensis and Salminus hilarii.
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Affiliation(s)
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- Molecular Ecology Resources Editorial Office, 6270 University Blvd, Vancouver, BC, V6T 1Z4, Canada
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Mazzucchelli R, Barbisan F, Santinelli A, Lopez-Beltran A, Cheng L, Scarpelli M, Montironi R. Immunohistochemical Expression of Prostate Stem Cell Antigen in Cystoprostatectomies with Incidental Prostate Cancer. Int J Immunopathol Pharmacol 2009; 22:755-62. [DOI: 10.1177/039463200902200321] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
High expression of Prostate Stem Cell Antigen (PSCA) has been shown to be associated with adverse prognostic features in clinically-diagnosed prostate cancer. The aim of this study is to analyze PSCA expression in cystoprostatectomies with incidental prostate carcinoma (PCa). PSCA expression was evaluated immunohistochemically in normal-looking epithelium (NEp), high-grade prostatic intraepithelial neoplasia (HGPIN) and pT2a Gleason score 6 acinar adenocarcinoma. The evaluation was carried out on 20 cystoprostatectomies (CyPs) with incidental PCa from men with bladder urothelial carcinoma (UC), and 20 radical prostatectomies (RPs) with hormonally untreated PCa from men with clinically detected PCa. Ki-67 was also investigated. The percentages of PSCA positive cells in HGPIN were significantly higher than in NEp (NEp: CyP, mean 2.92% ± standard deviation 6.26%; RP, 3.5% ± 6.46%. HGPIN: CyP, 13.67% ± 12.78%; RP, 14.67% ± 11.34%) (p<0.001). The proportions of positive cells in PCa were greater than in HGPIN (CyP, 20.25% ± 15.96%; RP, 22.58% ± 13.67%) (p0.001). For Ki-67 labeling, the proportions of positive nuclei in the CyPs significantly increased from NEp through HGPIN to PCa. A similar trend was seen in the RPs. In the CyPs the percentages of PSCA and Ki67 positive cells were lower than in the RPs, the differences between the CyP and RP compartments being not statistically significant. Our findings suggest that PSCA is a marker associated with neoplastic transformation of prostate cells, both in CyPs and RPs. However, there are no significant differences between CyPs with incidental prostate carcinoma and RPs with clinically diagnosed cancer.
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Affiliation(s)
| | | | | | - A. Lopez-Beltran
- Department of Pathology, Reina Sofia University Hospital and Faculty of Medicine, Cordoba, Spain
| | - L. Cheng
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
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Barbisan F, Mazzucchelli R, Santinelli A, Stramazzotti D, Scarpelli M, Lopez-Beltran A, Cheng L, Montironi R. Immunohistochemical Evaluation of Global DNA Methylation and Histone Acetylation in Papillary Urothelial Neoplasm of Low Malignant Potential. Int J Immunopathol Pharmacol 2008; 21:615-23. [DOI: 10.1177/039463200802100315] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [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] Open
Abstract
A preceding study has shown that karyometry detected subvisual differences in chromatin organization status between non-recurrent and recurrent papillary urothelial neoplasm of low malignant potential (PUNLMP). The status of chromatin organization depends on epigenetic events, such as DNA methylation and histone acetylation. The aim of this study is to explore global DNA methylation and global histone acetylation in non-recurrent and recurrent PUNLMP. 5-methylcytosine (5MeC) and acetylated histone H3 lysine 9 (AcH3K9) were investigated by immunohistochemistry (IHC) in 20 PUNLMP cases (10 non-recurrent and 10 recurrent), in 5 cases of normal urothelium (NU) and in 5 cases of muscle invasive pT2 urothelial carcinoma (UC). For global DNA methylation, the mean percentage of positive nuclei in the cells adjacent to the stroma increased from NU (79%) through non-recurrent and recurrent PUNLMP (86% and 93%, respectively) to UC (97%). The percentages of positive nuclei in the intermediate cell layers and in the superficial cells in the four groups were similar to those adjacent to the stroma. The proportion of nuclei with weak-to-moderate intensity was far greater than that of those strongly stained and increased steadily from NU to UC. For global histone acetylation, the mean percentage of positive nuclei was highest in non-recurrent PUNLMP (i.e. 90%) and lowest in recurrent PUNLMP (i.e. 81%). In NU and UC the mean percentages of positive nuclei were 84% and 86%, respectively. The percentage of positive nuclei decreased from the cell layer adjacent to the stroma to the superficial cell layer. The proportion of nuclei with weak-to-moderate intensity was slightly greater than that of those strongly stained. In comparison with global DNA methylation, the proportion of strongly stained nuclei was much higher. In conclusion, there are differences in global DNA methylation and histone acetylation patterns between non-recurrent and recurrent PUNLMP. Further studies are needed to elucidate the complex interplay between chromatin structure, its modifications and recurrence of PUNLMP.
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Affiliation(s)
| | | | | | | | | | - A. Lopez-Beltran
- Department of Pathology, Reina Sofia University Hospital and Faculty of Medicine, Cordoba, Spain
| | - L. Cheng
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
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