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Velleman L, Scarabelli L, Sikdar D, Kornyshev AA, Liz-Marzán LM, Edel JB. Monitoring plasmon coupling and SERS enhancement through in situ nanoparticle spacing modulation. Faraday Discuss 2019; 205:67-83. [PMID: 28932840 DOI: 10.1039/c7fd00162b] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Self-assembled nanoparticle (NP) arrays at liquid interfaces provide a unique optical response which has opened the door to new tuneable metamaterials for sensing and optical applications. NPs can spontaneously assemble at a liquid-liquid interface, forming an ordered, self-healing, low-defect 2D film. The close proximity of the NPs at the interface results in collective plasmonic modes with a spectral response dependent on the distance between the NPs and induces large field enhancements within the gaps. In this study, we assembled spherical and rod-shaped gold NPs with the aim of improving our understanding of NP assembly processes at liquid interfaces, working towards finely controlling their structure and producing tailored optical and enhanced Raman signals. We systematically tuned the assembly and spacing between NPs through increasing or decreasing the degree of electrostatic screening with the addition of electrolyte or pH adjustment. The in situ modulation of the nanoparticle position on the same sample allowed us to monitor plasmon coupling and the resulting SERS enhancement processes in real time, with sub-nm precision.
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Affiliation(s)
- L Velleman
- Department of Chemistry, Imperial College London, UK.
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Malavasi N, Fiorani C, Ferrara L, Postiglione R, Scarabelli L, Cantile F, Saviola A, Longo G, Luciani A, Cascinu S. General and dedicated cancer emergency room: Clinical and financial implications. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy300.062] [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: 11/12/2022] Open
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Saviola A, Cascinu S, Salati M, Longo G, Fiorani C, Ferrara L, Malavasi N, Postiglione R, Cantile F, Scarabelli L, Rimini M, Ferri F. A novel electronic tool to implement palliative sedation (PS) in a department of oncologic medicine. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy295.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Massa M, Gasparini S, Baldelli I, Scarabelli L, Santi P, Quarto R, Repaci E. Interaction Between Breast Cancer Cells and Adipose Tissue Cells Derived from Fat Grafting. Aesthet Surg J 2016; 36:358-63. [PMID: 26499941 DOI: 10.1093/asj/sjv194] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/04/2015] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Adipose tissue transplantation has the benefit of providing both regenerative and aesthetic outcomes in breast cancer treatment. However, the transplanted tissue can stimulate the growth of residual cancer cells. OBJECTIVES The aim of this study is to identify the interactions between adipose tissue cell subpopulations and human cancer cell lines. METHODS Intact adipose tissue from lipofilling procedures as well as fibroblasts derived from adipose tissue, were cocultured in the presence of MDA-MB-231, MCF-7 e ZR-75-1 breast cancer cell lines. The influence on cancer cell lines of fibroblasts, induced to differentiate into specific adipocytes, was also assayed. RESULTS All cancer cell lines displayed a significant increase in proliferation rate when cocultured in the presence of either intact adipose tissue or induced adipocytes. To a lesser extent, uninduced fibroblasts stimulate breast cancer cell proliferation. CONCLUSIONS Recent studies have shown that the microenvironment surrounding breast cancer cells may stimulate growth and promote progression of residual cancer cells when surgery is performed on the main tumor mass. Accordingly, the graft of adipose tissue could potentially promote or accelerate the development of a subclinical tumor or support its locoregional recurrence. Our data suggest that adipocytes have a remarkable influence on the proliferation of cancer cell lines. The oncological safety of the lipofilling procedure outcome is still debated; thus, further studies and consistent follow-up examination are needed.
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Affiliation(s)
- Michela Massa
- Dr Massa is a Plastic Surgeon and Fellow, Dr Baldelli is a Plastic Surgeon and Assistant Professor, and Dr Santi is a Plastic Surgeon and Full Professor, Department of Integrated Surgical and Diagnostic Sciences, University of Genoa, IRCCS San Martino IST, Genoa, Italy. Ms Gasparini is a Researcher and Fellow, Ms Scarabelli is a Researcher, Dr Quarto is a Researcher and Full Professor, and Dr Repaci is a Researcher and Fellow, Department of Experimental Medicine, University of Genoa, Genoa, Italy
| | - Simona Gasparini
- Dr Massa is a Plastic Surgeon and Fellow, Dr Baldelli is a Plastic Surgeon and Assistant Professor, and Dr Santi is a Plastic Surgeon and Full Professor, Department of Integrated Surgical and Diagnostic Sciences, University of Genoa, IRCCS San Martino IST, Genoa, Italy. Ms Gasparini is a Researcher and Fellow, Ms Scarabelli is a Researcher, Dr Quarto is a Researcher and Full Professor, and Dr Repaci is a Researcher and Fellow, Department of Experimental Medicine, University of Genoa, Genoa, Italy
| | - Ilaria Baldelli
- Dr Massa is a Plastic Surgeon and Fellow, Dr Baldelli is a Plastic Surgeon and Assistant Professor, and Dr Santi is a Plastic Surgeon and Full Professor, Department of Integrated Surgical and Diagnostic Sciences, University of Genoa, IRCCS San Martino IST, Genoa, Italy. Ms Gasparini is a Researcher and Fellow, Ms Scarabelli is a Researcher, Dr Quarto is a Researcher and Full Professor, and Dr Repaci is a Researcher and Fellow, Department of Experimental Medicine, University of Genoa, Genoa, Italy
| | - Linda Scarabelli
- Dr Massa is a Plastic Surgeon and Fellow, Dr Baldelli is a Plastic Surgeon and Assistant Professor, and Dr Santi is a Plastic Surgeon and Full Professor, Department of Integrated Surgical and Diagnostic Sciences, University of Genoa, IRCCS San Martino IST, Genoa, Italy. Ms Gasparini is a Researcher and Fellow, Ms Scarabelli is a Researcher, Dr Quarto is a Researcher and Full Professor, and Dr Repaci is a Researcher and Fellow, Department of Experimental Medicine, University of Genoa, Genoa, Italy
| | - Pierluigi Santi
- Dr Massa is a Plastic Surgeon and Fellow, Dr Baldelli is a Plastic Surgeon and Assistant Professor, and Dr Santi is a Plastic Surgeon and Full Professor, Department of Integrated Surgical and Diagnostic Sciences, University of Genoa, IRCCS San Martino IST, Genoa, Italy. Ms Gasparini is a Researcher and Fellow, Ms Scarabelli is a Researcher, Dr Quarto is a Researcher and Full Professor, and Dr Repaci is a Researcher and Fellow, Department of Experimental Medicine, University of Genoa, Genoa, Italy
| | - Rodolfo Quarto
- Dr Massa is a Plastic Surgeon and Fellow, Dr Baldelli is a Plastic Surgeon and Assistant Professor, and Dr Santi is a Plastic Surgeon and Full Professor, Department of Integrated Surgical and Diagnostic Sciences, University of Genoa, IRCCS San Martino IST, Genoa, Italy. Ms Gasparini is a Researcher and Fellow, Ms Scarabelli is a Researcher, Dr Quarto is a Researcher and Full Professor, and Dr Repaci is a Researcher and Fellow, Department of Experimental Medicine, University of Genoa, Genoa, Italy
| | - Erica Repaci
- Dr Massa is a Plastic Surgeon and Fellow, Dr Baldelli is a Plastic Surgeon and Assistant Professor, and Dr Santi is a Plastic Surgeon and Full Professor, Department of Integrated Surgical and Diagnostic Sciences, University of Genoa, IRCCS San Martino IST, Genoa, Italy. Ms Gasparini is a Researcher and Fellow, Ms Scarabelli is a Researcher, Dr Quarto is a Researcher and Full Professor, and Dr Repaci is a Researcher and Fellow, Department of Experimental Medicine, University of Genoa, Genoa, Italy
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Mangone L, Scarabelli L, Prati G, Giovanardi F, Pezzuolo D, Gervasi E, Gazzotti F, Bedogni V, Scaltriti L. Health Literacy: application of the principles in the context of ASMN-IRCCS and AUSL Reggio Emilia. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv347.05] [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: 11/14/2022] Open
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Pezzuolo D, Scarabelli L, Giovanardi F, Prati G, Montanari S, Vernizzi R, Darecchio S, Maramotti G, Codispoti M, Sforacchi F, Gervasi E, Codeluppi G, Carpi G, Manara C, Cavalca M, Brozzi C, Alberini R, Verona C, Scaltriti L. The “Bandalarga” project: School's concerts in oncology. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv347.11] [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: 11/13/2022] Open
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Scaltriti L, Giovanardi F, Prati G, Pezzuolo D, Gervasi E, Zoboli D, Cassi B, Scarabelli L. AIFA anti-tumor drugs platform break: a good clinical management. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv348.60] [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: 11/14/2022] Open
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Masini MA, Albi E, Barmo C, Bonfiglio T, Bruni L, Canesi L, Cataldi S, Curcio F, D'Amora M, Ferri I, Goto K, Kawano F, Lazzarini R, Loreti E, Nakai N, Ohira T, Ohira Y, Palmero S, Prato P, Ricci F, Scarabelli L, Shibaguchi T, Spelat R, Strollo F, Ambesi-Impiombato FS. The impact of long-term exposure to space environment on adult mammalian organisms: a study on mouse thyroid and testis. PLoS One 2012; 7:e35418. [PMID: 22558148 PMCID: PMC3338839 DOI: 10.1371/journal.pone.0035418] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2011] [Accepted: 03/15/2012] [Indexed: 12/30/2022] Open
Abstract
Hormonal changes in humans during spaceflight have been demonstrated but the underlying mechanisms are still unknown. To clarify this point thyroid and testis/epididymis, both regulated by anterior pituitary gland, have been analyzed on long-term space-exposed male C57BL/10 mice, either wild type or pleiotrophin transgenic, overexpressing osteoblast stimulating factor-1. Glands were submitted to morphological and functional analysis.In thyroids, volumetric ratios between thyrocytes and colloid were measured. cAMP production in 10(-7)M and 10(-8)M thyrotropin-treated samples was studied. Thyrotropin receptor and caveolin-1 were quantitized by immunoblotting and localized by immunofluorescence. In space-exposed animals, both basal and thyrotropin-stimulated cAMP production were always higher. Also, the structure of thyroid follicles appeared more organized, while thyrotropin receptor and caveolin-1 were overexpressed. Unlike the control samples, in the space samples thyrotropin receptor and caveolin-1 were both observed at the intracellular junctions, suggesting their interaction in specific cell membrane microdomains.In testes, immunofluorescent reaction for 3β- steroid dehydrogenase was performed and the relative expressions of hormone receptors and interleukin-1β were quantified by RT-PCR. Epididymal sperm number was counted. In space-exposed animals, the presence of 3β and 17β steroid dehydrogenase was reduced. Also, the expression of androgen and follicle stimulating hormone receptors increased while lutenizing hormone receptor levels were not affected. The interleukin 1 β expression was upregulated. The tubular architecture was altered and the sperm cell number was significantly reduced in spaceflight mouse epididymis (approx. -90% vs. laboratory and ground controls), indicating that the space environment may lead to degenerative changes in seminiferous tubules.Space-induced changes of structure and function of thyroid and testis/epididymis could be responsible for variations of hormone levels in human during space missions. More research, hopefully a reflight of MDS, would be needed to establish whether the space environment acts directly on the peripheral glands or induces changes in the hypotalamus-pituitary-glandular axis.
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Affiliation(s)
| | - Elisabetta Albi
- Department of Clinical and Experimental Medicine, University of Perugia, Perugia, Italy
| | | | | | - Lara Bruni
- DIPTERIS, University of Genoa, Genova, Italy
| | | | - Samuela Cataldi
- Department of Clinical and Experimental Medicine, University of Perugia, Perugia, Italy
| | - Francesco Curcio
- Department of Clinical and Biological Sciences, University of Udine, Udine, Italy
| | | | - Ivana Ferri
- Institute of Pathologic Anatomy and Histology, University of Perugia, Perugia, Italy
| | - Katsumasa Goto
- School of Health Sciences, Toyohashi SOZO University, Aichi, Japan
| | | | - Remo Lazzarini
- Department of Clinical and Experimental Medicine, University of Perugia, Perugia, Italy
| | - Elisabetta Loreti
- Institute of Pathologic Anatomy and Histology, University of Perugia, Perugia, Italy
| | - Naoya Nakai
- Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Takashi Ohira
- Graduate School of Frontier Biosciences, Osaka University, Osaka, Japan
| | - Yoshinobu Ohira
- Graduate School of Medicine, Osaka University, Osaka, Japan
- Graduate School of Frontier Biosciences, Osaka University, Osaka, Japan
| | | | - Paola Prato
- DIPTERIS, University of Genoa, Genova, Italy
| | | | | | | | - Renza Spelat
- Department of Clinical and Biological Sciences, University of Udine, Udine, Italy
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Bertolini F, Malavasi N, Scarabelli L, Fiocchi F, Bagni B, Del Giovane C, Colucci G, Gerunda GE, Depenni R, Zironi S, Fontana A, Pettorelli E, Luppi G, Conte PF. FOLFOX6 and bevacizumab in non-optimally resectable liver metastases from colorectal cancer. Br J Cancer 2011; 104:1079-84. [PMID: 21386839 PMCID: PMC3068493 DOI: 10.1038/bjc.2011.43] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [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] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND In patients with colorectal liver metastases (CLM) R0 resection significantly improves overall survival (OS). METHODS In this report, we present the results of a phase II trial of FOLFOX6+bevacizumab in patients with non-optimally resectable CLM. Patients received six cycles of FOLFOX6+ five of bevacizumab. Patients not achieving resectability received six additional cycles of each. A PET-CT was performed at baseline and again within 1 month after initiating treatment. RESULTS From September 2005 to July 2009, 21 patients were enrolled (Male/Female: 15/6; median age: 65 years). An objective response (OR) was documented in 12 cases (57.1%; complete responses (CRs): 3, partial response (PR): 9); one patient died from toxicity before surgery. Thirteen patients underwent radical surgery (61.9%). Three (23%) had a pathological CR (pCR). Six patients (46.1%) experienced minor postsurgical complications. After a median 38.8-month follow-up, the median OS was 22.5 months. Patients achieving at least 1 unit reduction in Standard uptake value (SUV)max on PET-CT had longer progression-free survival (PFS) (median PFS: 22 vs 14 months, P=0.001). CONCLUSIONS FOLFOX6+bevacizumab does not increase postsurgical complications, yields high rates of resectability and pCR. Early changes in PET-CT seem to be predictive of longer PFS.
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Affiliation(s)
- F Bertolini
- Oncology, Haematology and Respiratory Diseases Department, University Hospital of Modena, Modena, Italy.
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Bertolini F, Malavasi N, Scarabelli L, Fiocchi F, Bagni B, Del Giovane C, Colucci G, Gerunda GE, Depenni R, Zironi S, Fontana A, Pettorelli E, Luppi G, Conte PF. FOLFOX6 and bevacizumab in non-optimally resectable liver metastases from colorectal cancer. Br J Cancer 2011. [PMID: 21386839 DOI: 10.1038/bjc.2011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND In patients with colorectal liver metastases (CLM) R0 resection significantly improves overall survival (OS). METHODS In this report, we present the results of a phase II trial of FOLFOX6+bevacizumab in patients with non-optimally resectable CLM. Patients received six cycles of FOLFOX6+ five of bevacizumab. Patients not achieving resectability received six additional cycles of each. A PET-CT was performed at baseline and again within 1 month after initiating treatment. RESULTS From September 2005 to July 2009, 21 patients were enrolled (Male/Female: 15/6; median age: 65 years). An objective response (OR) was documented in 12 cases (57.1%; complete responses (CRs): 3, partial response (PR): 9); one patient died from toxicity before surgery. Thirteen patients underwent radical surgery (61.9%). Three (23%) had a pathological CR (pCR). Six patients (46.1%) experienced minor postsurgical complications. After a median 38.8-month follow-up, the median OS was 22.5 months. Patients achieving at least 1 unit reduction in Standard uptake value (SUV)max on PET-CT had longer progression-free survival (PFS) (median PFS: 22 vs 14 months, P=0.001). CONCLUSIONS FOLFOX6+bevacizumab does not increase postsurgical complications, yields high rates of resectability and pCR. Early changes in PET-CT seem to be predictive of longer PFS.
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Affiliation(s)
- F Bertolini
- Oncology, Haematology and Respiratory Diseases Department, University Hospital of Modena, Modena, Italy.
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Bertolini F, Scarabelli L, Del Giovane C, Zironi S, De Marco G, Fontana A, Depenni R, Bertoni F, Luppi G, Conte PF. Locally advanced rectal cancer (LARC): A 12-year experience of multimodality approach. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.4_suppl.607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
607 Background: Main objective of the report is to review retrospectively a 12 years experience of pre-operative chemo-radiotherapy (CRT) in patients (pts) with LARC at the University Hospital of Modena and to correlate clinical variables with outcome. Methods: Between 1998 and 2010, 275 consecutive pts with stage II, III and IV (oligometastatic in lung or liver) LARC who underwent neo-adjuvant CTR were identified from a single institution. All pts received fluoropyrimidine-based chemotherapy (alone or in combination) and RT (50-50.4 Gy). Results: On 275 pts, 166 were males (61%) and 109 females (39%); median age: 65.9 years (range: 26-84). Rectal primary site (on 260 pts): 112 low (43%), 91 medium (35%) and 57 high (22%). Stage at diagnosis (on 245): 2 cT2N0 (0.8%), 8 cT2N+ (3.3%), 68 cT3N0 (27.8%), 134 cT3N1 (54.7%), 11 cT4N0 (4.5%), 22 cT4N1 (8.9%). Pre-operative treatment (on 268 pts): 168 pts (62.6%) received 5fluorouracil (5FU) in continuous infusion, 37 (13.9%) capecitabine, 36 (13.5%) FU+oxaliplatin and 27 (10%) 5FU+cetuximab (clinical trial). On evaluable 177 pts, only 25 (14%) developed G3 toxicity and subsequent treatment interruption. No grade 4 toxicity was recorded. 252 pts underwent surgery (18 pts are still ongoing; 5 did not receive surgery for multiple distant metastases at pre-operative staging): 189 anterior resection (75%), 59 abdominal-perineal amputation (23.4%) and 4 endoscopic resection (1.6%). On 235 pts, 148 obtained a T and/or N downstaging (63%). Dworak tumor regression grade (TRG) was (on 209 pts): TRG4 (pathological complete response) 38 (18.3%), TRG3 37 (17.8%), TRG2 67 (32%), TRG1 63 (30%) and TRG0 4 (1.9%). 5 y-disease free survival (DFS) and overall survival (OS) are 75% and 73%, respectively. Down-staging, TRG 3-4 and histological features like the positivity for radial margins and vascular invasion correlate with both DFS and OS. Conclusions: Pre-operative CRT is well tolerated; downstaging, TRG and histological features such as radial margins and vascular invasion are the strongest predictors of survival. No significant financial relationships to disclose.
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Affiliation(s)
- F. Bertolini
- Azienda Ospedaliero-Universitaria, Modena, Italy
| | | | | | - S. Zironi
- Azienda Ospedaliero-Universitaria, Modena, Italy
| | - G. De Marco
- Azienda Ospedaliero-Universitaria, Modena, Italy
| | - A. Fontana
- Azienda Ospedaliero-Universitaria, Modena, Italy
| | - R. Depenni
- Azienda Ospedaliero-Universitaria, Modena, Italy
| | - F. Bertoni
- Azienda Ospedaliero-Universitaria, Modena, Italy
| | - G. Luppi
- Azienda Ospedaliero-Universitaria, Modena, Italy
| | - P. F. Conte
- Azienda Ospedaliero-Universitaria, Modena, Italy
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Massari A, Urbatzka R, Cevasco A, Canesi L, Lanza C, Scarabelli L, Kloas W, Mandich A. Aromatase mRNA expression in the brain of adult Xenopus laevis exposed to Lambro river water and endocrine disrupting compounds. Gen Comp Endocrinol 2010; 168:262-8. [PMID: 20417212 DOI: 10.1016/j.ygcen.2010.04.012] [Citation(s) in RCA: 9] [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] [Received: 11/30/2009] [Revised: 04/08/2010] [Accepted: 04/20/2010] [Indexed: 10/19/2022]
Abstract
Aromatase P450 (P450 arom; Cyp19) is a key enzyme for vertebrate reproduction and brain development that catalyzes the conversion of androgens to estrogens. The aim of this study was to improve the knowledge on EDC effects by analysing their potential impact on brain P450 arom in adult Xenopus laevis exposed for 4 weeks to an environmental sample, the water of the river Lambro (LAM), the most polluted tributary of the Po river in North Italy. Other groups were exposed to individual compounds 10(-8) M tamoxifen (TAM), ethinylestradiol (EE2), flutamide (FLU) and methyldihydrotestosterone (MDHT) known for their (anti)estrogenic and (anti)androgenic modes of action. Expression of CYP19 was evaluated in brain extracts by quantitative RT-PCR, using a pair of primers located in the open reading frame (ORF) that allowed the simultaneous amplification of all transcripts (Aro-ORF) and a pair of primers specific for brain aromatase (Aro-B). Significant increase in Aro-ORF and Aro-B mRNA levels were observed in both females and males exposed to LAM. Different changes were observed for the model compounds using two pairs of primers. Aro-ORF mRNA expression was significantly increased in EE2 and MDHT exposed males and in FLU-exposed females, while it was significantly decreased in TAM exposed females. Aro-B mRNA was significantly increased in both sexes exposed to FLU and decreased in TAM exposed females. In conclusion, aromatase mRNA in the brain of X. laevis was regulated differentially in a gender specific manner by certain (anti)estrogenic and (anti)androgenic EDCs, supporting previous hypotheses that diverse compounds present in the river Lambro may induce feminization and demasculinization effects.
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Affiliation(s)
- A Massari
- Department of Biology, University of Genoa, Italy.
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13
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Bertolini F, Malavasi N, Scarabelli L, Gerunda GE, Colucci G, Fontana A, Depenni R, Zironi S, Luppi G, Conte PF. FOLFOX6 and bevacizumab in non-optimally resectable liver metastases from colorectal cancer: Results of a phase II trial and role of PET-CT as early predictor of reponse. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e14108] [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: 11/20/2022] Open
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Fontana A, Losi L, Bertolini F, Zironi S, Depenni R, Malavasi N, Scarabelli L, Luppi G, Conte PF. FOLFOX6 as first-line treatment in metastatic gastric cancer: Preliminary results of a phase II trial. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.4091] [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: 11/20/2022] Open
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Vergani L, Lanza C, Scarabelli L, Canesi L, Gallo G. Heavy metal and growth hormone pathways in metallothionein regulation in fish RTH-149 cell line. Comp Biochem Physiol C Toxicol Pharmacol 2009; 149:572-80. [PMID: 19154796 DOI: 10.1016/j.cbpc.2008.12.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [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: 10/16/2008] [Revised: 12/15/2008] [Accepted: 12/15/2008] [Indexed: 10/21/2022]
Abstract
Interference between heavy metals and growth hormone (GH) on cell signaling has been previously demonstrated in fish cells. This study was aimed at assessing their effects on expression of the metallothionein isoforms MT-A and MT-B. The results indicate that all heavy metals induce MT-A more markedly than MT-B, but differences appeared when metals were combined with GH. For MT-B induction, a positive interference between metals and GH was observed for Zn(2+)/GH and Cd(2+)/GH, a negative interference for Hg(2+)/GH. With regards to MT-A, no interference was observed for Zn(2+)/GH and Hg(2+)/GH, while a negative interference occurred with Cu(2+)/GH and a positive interference with Cd(2+)/GH. The possible mechanisms underlying the differential regulation of metallothioneins include different signaling pathways. The results show that STAT5 and ERKs responded differently to different combinations, and Zn(2+)/GH and Cd(2+)/GH exerted a slight positive interference on ERK activation. On the other hand, a synergic rise in [Ca(2+)](i) occurred for all combinations except for Cu(2+)/GH. Our data suggest that the cross-talk between heavy metals and GH resulting in MT transcription modulation does not strictly depend on Ca(2+) signalling; (ii)ERK activation may represent the point of cross-talk between Zn(2+) or Cd(2+) and GH, converging on MT-B transcription, probably through a differential recruitment of transcription factors.
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Affiliation(s)
- Laura Vergani
- Department of Biology, University of Genova, Genova, Italy.
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Giannoni P, Scarabelli L, Izzotti A, Cesarone CF. Determination of Poly(ADP-Ribose) Polymerase in Rat Blood Lymphocytes: Possible Relevance to Genotoxic Exposure of Humans. ACTA ACUST UNITED AC 2008. [DOI: 10.3109/15376519409061539] [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] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Vergani L, Lanza C, Borghi C, Scarabelli L, Panfoli I, Burlando B, Dondero F, Viarengo A, Gallo G. Efects of growth hormone and cadmium on the transcription regulation of two metallothionein isoforms. Mol Cell Endocrinol 2007; 263:29-37. [PMID: 17027146 DOI: 10.1016/j.mce.2006.08.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [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: 07/12/2006] [Revised: 08/16/2006] [Accepted: 08/16/2006] [Indexed: 11/17/2022]
Abstract
The effect of growth hormone (GH) and cadmium (Cd) on metallothionein (MT) expression was investigated in hepatoma cells. In fish the constitutive isoform MT-B and the metal-responsive MT-A are expressed. Real-time RT-PCR revealed that: Cd up-regulates mostly MT-A, GH slightly induces MT-B and the GH/Cd combination induces synergistically both MTs. Perturbations in Ca2+ levels suppressed or reduced the Cd-induction of MTs and abolished the GH/Cd synergy. Similar results were obtained by inhibition of tyrosine kinases. Also the signaling molecules recruited by the GH receptor responded differently to GH and Cd, with ERKs showing a synergistic activation upon GH/Cd. The following conclusions can be drawn: (1) cytosolic Ca2+ is mainly involved in MT-A regulation; (2) both Ca2+ and tyrosine phosphorylation are essential for Cd-induction and GH/Cd synergy on MTs. The synergy could depend on interactions in different signaling pathways, leading to a differential recruitment of MTF-1 and AP-1 transcription factors.
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Affiliation(s)
- Laura Vergani
- Department of Biophysical Sciences and Technologies M. & O (DISTBIMO), University of Genoa, Largo Rosanna Benzi 10, 16132 Genova, Italy.
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18
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Gilleron J, Nebout M, Scarabelli L, Senegas-Balas F, Palmero S, Segretain D, Pointis G. A potential novel mechanism involving connexin 43 gap junction for control of sertoli cell proliferation by thyroid hormones. J Cell Physiol 2006; 209:153-61. [PMID: 16823880 DOI: 10.1002/jcp.20716] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.3] [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: 11/06/2022]
Abstract
There is strong evidence that thyroid hormones through triiodothyronine (T3) regulate Sertoli cell proliferation and differentiation in the neonatal testis. However, the mechanism(s) by which they are able to control Sertoli cell proliferation is unclear. In the present study in vivo approaches (PTU-induced neonatal hypothyroidism known to affect Sertoli cell proliferation) associated with in vitro experiments on a Sertoli cell line were developed to investigate this question. We demonstrated that the inhibitory effect of T3 on Sertoli cell growth, analyzed by evaluating DNA-incorporated [3H] thymidine, was associated with a time and dose-dependent increase in the levels of Cx43, a constitutive protein of gap junctions, known to participate in the control of cell proliferation and the most predominant Cx in the testis. These Cx43 changes were associated with increased gap junction communication measured by gap FRAP. Consistent with these results two specific inhibitors of gap junction coupling, AGA and oleamide, were able to significantly reverse the T3 inhibitory effect on Sertoli cell proliferation. The present data also revealed a nongenomic effect of T3 on Cx43 Sertoli cells that was evidenced by a rapid up-regulation of gap junction plaque number as identified in Cx43-GFP transfected cells exposed to the hormone. This process appears mediated through actin cytoskeleton since incubation of the cells with cytochalasin D totally reversed the T3 stimulatory effect on Cx43-GFP gap junction plaques. Based on these data, we propose a working hypothesis in which Cx43 could be an intermediate target for T3 inhibition of neonatal Sertoli cell proliferation.
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Affiliation(s)
- Jerome Gilleron
- INSERM U 670, Faculté de Médecine, Université de Paris V René Descartes, Paris, France
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19
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Toma S, Emionite L, Scaramuccia A, Ravera G, Scarabelli L. Retinoids and human breast cancer: in vivo effects of an antagonist for RAR-alpha. Cancer Lett 2005; 219:27-31. [PMID: 15694661 DOI: 10.1016/j.canlet.2004.06.018] [Citation(s) in RCA: 11] [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] [Subscribe] [Scholar Register] [Received: 08/05/2003] [Revised: 06/01/2004] [Accepted: 06/10/2004] [Indexed: 11/26/2022]
Abstract
The aim of the present study was to evaluate the in vivo effects of the RAR-alpha selective antagonist Ro 41-5253 on a xenograft animal model for breast cancer. Our observations indicate a lack of toxic side effects of the drug, even when used at high dosages. It is interesting to note that using Ro 41-5253 at dosages of 10, 30 and 100 mg/kg/die resulted in a slight, but significant inhibition of cell growth. The data obtained in this study represents the basis for a further evaluation of Ro 41-5253 anti-neoplastic activity on transgenic breast cancer animal models.
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Affiliation(s)
- Salvatore Toma
- Department of Oncology, Biology and Genetics, University of Genoa, Genoa, Italy.
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20
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Abstract
The influence of carnitine on male reproductive function is well established. However, the molecular mechanism by which carnitines control male fertility have not yet been clearly identified. In the present study, we studied the role of carnitines at testis level by examining their effects on protein metabolism in cultured rat Sertoli cells. Our results demonstrate that L-carnitine and, in particular, L-acetylcarnitine administration affects overall protein synthesis, inducing a dose-dependent decrease in amino acid incorporation and consequently an increase of the intracellular amino-acid pool useful to speed up Sertoli cell energy metabolism. We also observed significant effect on the expression of specific proteins involved in the regulation of glucose uptake and Insulin-like Growth Factor (IGF) biological activity. Actually, an increased expression of the mRNA coding for the membrane Glucose Transporter-1 (GLUT-1) and a decreased expression of mRNA coding for the negative modulator insulin-like growth factor-binding protein-4 (IGFBP-4) were induced by in vitro treatment with L-carnitine and L- acetylcarnitine separately and in combination; in fact, the effects observed were far more pronounced following concomitant treatment with both compounds. Taken together, these data indicate that the influence of carnitines on male fertility could be partly mediated by an activity at Sertoli cell level.
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Affiliation(s)
- D Caviglia
- Dipartimento di Biologia Sperimentale, Ambientale ed Applicata, Sezione di Fisiologia Generale e Comparata, Università degli Studi di Genova, Italy
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21
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Abstract
Direct effects of PRL on Sertoli cell proliferation were investigated by using Sertoli cell primary cultures isolated from both prepubertal rat and porcine testes. PRL metabolic effects were analyzed in rat Sertoli cell primary cultures. Exposure to physiological doses of PRL resulted in a significant increase (+50-60%) of basal DNA synthesis, as reflected by the pattern of [3H] thymidine incorporation during culture; significant increases in lactate secretion (about 50%), androgen binding protein (ABP) production (about 30%) and basal protein synthesis (25-30%), as reflected in the augmented [14C] valine incorporation, were also evident. Taken together, our present findings, indicating significant effects of PRL on Sertoli cell proliferation and metabolism, demonstrate that Sertoli cells are a potential target for PRL action at testicular level during pre-pubertal development.
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Affiliation(s)
- L Scarabelli
- Department of Experimental, Environmental and Applied Biology, Section of General and Compared Physiology, University of Genova, Genova, Italy.
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22
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Toma S, Colucci L, Scarabelli L, Scaramuccia A, Emionite L, Betta PG, Mutti L. Synergistic effect of the anti-HER-2/neu antibody and cisplatin in immortalized and primary mesothelioma cell lines. J Cell Physiol 2002; 193:37-41. [PMID: 12209878 DOI: 10.1002/jcp.10150] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [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: 12/15/2022]
Abstract
Malignant mesothelioma (MM) still remains a therapeutic and diagnostic problem to which new therapeutic perspectives are being continuously tried and tested. Three different primary cultures (MMGe-1, MES MM 98, and MES 1) and one immortalized cell line (MSTO 211 H) of human MM were studied in order to evaluate the HER-2/neu expression. Three out of four cell lines showed a different level of c-erbB-2 expression, the highest being detected on the MSTO 211 H cell line (fibroblastic phenotype), whereas MMGe-1 resulted negative. The effect of the anti-HER-2/neu antibody (Trastuzumab) alone, and in combination with cisplatin (CDDP) at different doses (ranging from 0.1 to 100 microg/ml), was studied on all the c-erB-2 positive cell lines. Trastuzumab was able to inhibit cell proliferation in a time-dependent manner, with growth inhibition also obtained at low concentrations (0.1-1 microg/ml). Combined treatment with Trastuzumab (10 microg/ml) and CDDP (1 microg/ml) showed synergism. Our results were encouraging, and suggest a rationale for further investigations in a clinical setting.
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Affiliation(s)
- Salvatore Toma
- Department of Oncology, Biology and Genetics, University of Genoa, Italy.
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23
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Cesarone CF, Pippia P, Demori I, Scarabelli L, Fugassa E. Effect of simulated microgravity conditions on poly(ADP-ribose) polymerase activity in primary cultures of adult rat hepatocytes. J Gravit Physiol 2001; 8:P127-8. [PMID: 12650200] [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] [Subscribe] [Scholar Register] [Indexed: 04/20/2023]
Abstract
The possible involvement of poly(ADP-ribose) polymerase [PARP; E.C. 2.4.2.30] in the adaptive response to low-g conditions was studied in cultured adult rat hepatocytes exposed to simulated microgravity produced by the random positioning machine (RPM-3D-clinostat). Four different poly(ADP-ribose) polymerases (PARPs) have been identified recently. The best-studied member of this family is PARP-1, a highly conserved, multimodular 113 kDa protein. In multicellular organisms PARPs catalyze poly(ADP-ribose) synthesis from NAD+ to a number of structural and catalytic proteins. Moreover, PARP-1 can control its protein and DNA interactions by catalyzing its automodification with poly(ADP-ribose) molecules that can include up to 200 ADP-ribose residues and several branching points; by these polymers, PARP-1 may nocovalently interact with other proteins and alter their functions. PARP-1 binds to DNA and is activated by free ends interacting with several other DNA damage checkpoint proteins. Thus, PARPs may target specific signal network proteins via poly(ADP-ribose) and regulate their domain functions. Poly(ADP-ribosyl)ation plays a central role in genome stability and is involved in DNA replication and repair, gene expression, cell differentiation and transformation. We have shown that a loss of PARP-1 activity is a critical event in the early molecular steps of the hepatocarcinogenesis process. Moreover, a prompt increase in this enzymatic activity is linked not only to the presence of DNA free ends but is linked also to the start of DNA synthesis. More recently, we have reported that PARP-1 is involved in hormone-mediated gene expression in vitro and in vivo during rat liver regeneration.
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Affiliation(s)
- C F Cesarone
- Dept. of Physiology, Biochemistry and Cell Sciences, Univ of Sassari, Sassari, Italy
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24
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Cesarone CF, Scarabelli L, Demori I, Balocco S, Fugassa E. Poly(ADP-ribose) polymerase is affected early by thyroid state during liver regeneration in rats. Am J Physiol Gastrointest Liver Physiol 2000; 279:G1219-25. [PMID: 11093944 DOI: 10.1152/ajpgi.2000.279.6.g1219] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [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: 01/31/2023]
Abstract
Poly(ADP-ribose) polymerase (PARP), a nuclear enzyme involved in DNA synthesis, DNA repair, and cell replication and transformation, also plays a role in the early steps of liver regeneration induced by partial hepatectomy (PH). PARP and DNA topoisomerase I (Topo I) activities and de novo DNA synthesis were studied during liver regeneration in rats with altered thyroid state. Hepatic PARP activity, evaluated as [(32)P]NAD incorporated into isolated liver nuclei, was inhibited in hyperthyroid rats and increased in hypothyroid animals. In both euthyroid and hyperthyroid rats PARP activity was rapidly stimulated, peaking 6 h after PH. In hypothyroid animals, an early decrease in activity was found, at a minimum of 6 h after PH, followed by an early onset of DNA synthesis. An inverse relationship between PARP and Topo I activities was a shared feature among euthyroid, hypothyroid, and hyperthyroid rats. Together these data show that, in replicating hepatocytes, thyroid hormones exert a regulatory role on PARP activity, which reflects the control of a number of nuclear proteins involved in DNA metabolism.
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Affiliation(s)
- C F Cesarone
- Department of Physiological, Biochemical, and Cellular Sciences, Faculty of Science, University of Sassari, 07100 Sassari, Italy.
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25
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Scarabelli L, Merlo M, Bottazzi C, Demori I, Cesarone CF. Poly(ADP-ribose) polymerase activity in regenerating liver of hypothyroid rats. Boll Soc Ital Biol Sper 1998; 74:29-34. [PMID: 10965361] [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] [Subscribe] [Scholar Register] [Indexed: 04/15/2023]
Abstract
The role of PARP, a nuclear enzyme involved in DNA synthesis, repair and cell transformation, was studies during liver regeneration in hypothyroid animals. Hypothyroidism was induced by in vivo administration of propylthiouracil. In regenerating euthyroid animals PARP activity is stimulated showing an early and significant increase at 1.5 h with a maximum at 6 h after partial hepatectomy. Such an increase returns to control values within 18 h preceding the onset of DNA synthesis. A markedly different behavior, with respect to euthyroids, has been evidenced in hypothyroid rats. At first, liver PARP level was about 2-fold higher in non regenerating hypothyroid rats with respect to control euthyroids. During regeneration, PTU-treated animals show a net decrease in PARP activity, with a minimum at 6-9 h after partial hepatectomy. The activity returns to control levels within 24 days. The minimum in PARP activity anticipates, also in this case, the onset of DNA synthesis, which exhibits a maximum at 15-18 h. During liver regeneration PARP activity shows modifications related to the beginning of de novo DNA synthesis. Furthermore, these variations in turn undergo the effects of hypothyroidism.
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Affiliation(s)
- L Scarabelli
- Istituto di Fisiologia Generale, Facoltà di Scienze M.F.N., Università degli Studi di Genova
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26
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Merlo M, Scarabelli L, Bottazzi C, Demori I, Cesarone CF. DNA topoisomerase I activity in regenerating liver of hypothyroid rats. Boll Soc Ital Biol Sper 1998; 74:9-14. [PMID: 10319528] [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] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
DNA topoisomerase I activity is known to be inhibited by poly(ADP-ribosyl)ation. Both poly(ADP-ribose)polymerase and DNA topoisomerase I participate to major biological events, such as DNA transcription, repair and synthesis. Previously, a 2-fold increase in PARP activity has been shown in hypothyroid animals. Using the regenerating rat liver model, we have studied the behaviour of DNA topoisomerase I activity in hypothyroid rats. PARP activity, was also studied in another set of experiments. DNA topoisomerase I relaxing activity was determined on supercoiled plasmid DNA, and topoisomers separated by agarose gel electrophoresis. An increase in the relaxing activity of Topo I was observed early after hepatectomy. This enhancement well correlates with the reported inhibition of PARP activity at the scheduled times. The data from hypothyroid animals support an inverse relationship between PARP and Topo I. These results are completely reversed with respect to those obtained during liver regeneration in euthyroids.
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Affiliation(s)
- M Merlo
- Istituto di Fisiologia Generale, Facoltà di Scienze M.F.N., Università degli Studi di Genova
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27
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Giannoni P, Scarabelli L, Orunesu M, Cesarone CF. In vitro effect of 3,5,3'-triiodothyronine on poly(ADP-ribosyl)ation of DNA topoisomerase I. Ital J Biochem 1995; 44:129-36. [PMID: 7591671] [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] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
DNA topoisomerase I activity (topo I) is known to be inhibited by poly(ADP-ribosyl)ation. Both poly(ADP-ribose)polymerase (pADPRP) and DNA topoisomerase I participate to major biological events, such as DNA transcription, repair and synthesis. It has been shown that thyroid hormones, such as 3,5,3'-triiodothyronine (T3), stimulate DNA transcription and down-regulate pADPRP activity. Using an in vitro model, we have studied the poly(ADP-ribosyl)ation of topo I, in vitro, in the presence of T3. T3 treatment of pADPRP inhibits the enzyme up to 75-80% of control activity. DNA topoisomerase I relaxing activity was determined on supercoiled plasmid DNA, and topoisomers were separated by agarose gel electrophoresis. Poly(ADP-ribosyl)ation completely inhibits the relaxing activity of topo I, with respect to non-ribosylated controls, but the activity remains unaffected when pADPRP is inactivated by heat or treated with specific inhibitors, such as 3-aminobenzamide (3ABA). In this study we show that treatment of pADPRP with T3 reduces the inhibition on topo I. In this system 10(-8) M T3 was effective in maintaining almost all topo I activity, even though modifications in processivity and distributivity of the reaction were noted. These data support a close relationship between pADPRP and topo I in hormone-stimulated DNA transcription.
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Affiliation(s)
- P Giannoni
- Istituto di Fisiologia Generale, Università di Genova
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28
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Cesarone CF, Scarabelli L, Giannoni P, Orunesu M. Hepatic poly(ADP-ribose) polymerase activity in rat is controlled by thyroid hormones. Biochem Biophys Res Commun 1994; 203:1548-53. [PMID: 7945304 DOI: 10.1006/bbrc.1994.2362] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [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: 01/28/2023]
Abstract
The in vivo effect of the thyroidal state on poly(ADP-ribose) polymerase activity was investigated in eu- and hypothyroid rats after treatment with L-triiodothyronine. Untreated hypothyroids showed an increased basal rate of the enzyme. The treatment of both eu- and hypothyroid rats with L-triiodothyronine induced a prompt drop of the endogenous activity not due to a reduction of the catalytic protein. This decrease well evident 1 h after treatment was transient, returning to controls values within 8 h. In isolated liver nuclei from euthyroids the in vitro exposure to increasing L-triiodothyronine concentrations from 10(-18) to 10(-6) M resulted in a progressive inhibition of the enzyme. This loss in activity was not derived from a reduction of the total level of the catalytic protein. The pretreatment with the antagonist amiodarone suppressed the hormone effect, suggesting that nuclear receptors could mediate poly(ADP-ribose) polymerase activity.
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Affiliation(s)
- C F Cesarone
- Institute of General Physiology, University of Genoa, Italy
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29
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Scarabelli L, Giannoni P, Malfatto C, Bolognesi C, Cesarone CF. Relationship between poly(ADP-ribose) polymerase activity and DNA damage induced by zinc dithiocarbamates in mouse and rat liver. Mutat Res 1993; 302:1-6. [PMID: 7683100 DOI: 10.1016/0165-7992(93)90082-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [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: 01/26/2023]
Abstract
The genotoxic effects due to in vivo treatment with zinc dithiocarbamates were evaluated in rat and mouse liver. The two pesticides Zineb and Ziram, belonging to this chemical class, induced an increase in single-strand DNA breaks, as measured by the alkaline elution technique. The nuclear enzyme poly(ADP-ribose) polymerase (pADPRP), a chromatin-bound catalytic protein, utilizing NAD+ as a substrate, was tested by a radiometric procedure. A close relationship between the increased extent of DNA damage and the enhanced level of endogenous pADPRP activity was obtained in rat liver, whereas both parameters remained unchanged in mouse liver.
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Affiliation(s)
- L Scarabelli
- Institute of General Physiology, University of Genoa, Italy
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30
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Cesarone CF, Suzuki H, Scovassi AI, Scarabelli L, Izzo R, Giannoni P, Mariani C, Miwa M, Orunesu M, Bertazzoni U. Influence of poly(ADP ribose) polymerase depletion on promotion of liver carcinogenesis. Mol Carcinog 1992; 5:111-7. [PMID: 1554409 DOI: 10.1002/mc.2940050206] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [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: 12/27/2022]
Abstract
In previous studies we demonstrated that liver poly(ADP ribose) polymerase (pADPRP) activity was lost in animals exposed to N-2-acetylaminofluorene (2AAF) according to the Teebor and Becker experimental model (Cancer Res 31:1-3, 1971). In addition, we used the resistant hepatocyte model of Solt and Farber (Nature 263:702-703, 1976) to further investigate pADPRP activity during the multistep process of liver carcinogenesis. A marked depletion of the catalytic protein was evidenced after 2AAF exposure, confirming previous results and indicating a specific effect of 2AAF on this nuclear enzyme that controls conformational changes of chromatin and regulates several catalytic activities in the nucleus. The levels of pADPRP mRNA, measured by northern blot analysis using both experimental models, indicate that the enzyme depletion is not due to a loss of transcript. Moreover, these data indicate that pADPRP depletion, caused by 2AAF, was also maintained during liver compensatory growth, which is known to induce a rapid and marked increase in pADPRP activity and protein level. Treatment of 2AAF-exposed animals with N-acetyl-L-cysteine not only efficiently protected against DNA damage, but also prevented a rapid depletion of the catalytic protein. Interestingly, these data indicate that the marked loss of liver pADPRP occurred during the promotion step induced by 2AAF feeding and that this loss was observed using different models for experimental hepatocarcinogenesis. This phenomenon can be ascribed to a highly defective transcript that cannot be correctly translated into the specific protein or to a rapid degradation of the translated protein.
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Affiliation(s)
- C F Cesarone
- Istituto di Fisiologia Generale, Facoltá di Scienze, Genova, Italy
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31
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Scarabelli L, Cesarone CF, Giannoni P, Porotto A, Gallo G, Orunesu M. Effect of N-2-acetylaminofluorene on poly(ADP-ribose) polymerase activity and DNA synthesis in cultured rat hepatocytes exposed to epidermal growth factor. Boll Soc Ital Biol Sper 1992; 68:55-62. [PMID: 1503739] [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] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The nuclear enzyme poly(ADP-ribose) polymerase is involved in basic cellular processes such as DNA replication and repair, cell differentiation and transformation, gene expression. We have studied the effect of 2AAF, a genotoxic aromatic amine, on pADPRP activity during DNA synthesis stimulated by EGF, using the cultured rat hepatocytes model. DNA synthesis was measured as [3H]thymidine incorporated/microgram DNA while pADPRP activity was expressed in pmol[32P]NAD incorporated/min/microgram DNA. Our results show that 2AAF treatment of EGF-stimulated rat hepatocytes induces a full block of DNA replication which is preceded and accompanied by a net inhibition of endogenous and total pADPRP activity, respectively. A block in pADPRP activity in normal hepatocytes, exposed to 2AAF in vitro or in vivo, could play a key role in cell transformation. Our data add further information on the possible involvement of this nuclear catalytic activity during DNA replication.
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Affiliation(s)
- L Scarabelli
- Istituto di Fisiologia Generale, Universitá di Genova
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32
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Giannoni P, Fronza G, Scarabelli L, Fugassa E, Orunesu M, Cesarone CF. Relationship between DNA topoisomerase I activity and DNA synthesis in cultured hepatocytes: effects of orotic acid. Boll Soc Ital Biol Sper 1991; 67:509-16. [PMID: 1666832] [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] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Previous studies have demonstrated that DNA topoisomerase I activity can be closely related to DNA replication and active transcription in different experimental models. This relationship was further investigated by studying the time course of DNA topoisomerase I activity in cultured rat hepatocytes stimulated by epidermal growth factor. This mitogen has been shown to stimulate DNA synthesis in liver cells both in vivo and in vitro. DNA topoisomerase I activity was assayed quantifying ATP-independent relaxation of a negatively supercoiled plasmid, substrate for the enzyme. Incubation of cellular extracts was carried out at 30 degrees C for 15'. Products were electrophoresed and analyzed by densitometry. DNA synthesis was measured as [3H]thymidine incorporation in the hepatocytes, after a 2 hrs pulse labelling. An increase in DNA topoisomerase I activity was observed early after epidermal growth factor addition, before the onset of DNA synthesis. Concomitant administration of orotic acid, which has recently shown mitoinhibitory effect, abolished the EGF-induced activity as well as DNA synthesis. Taken together these data indicate that, in cultured hepatocytes, the induction of DNA synthesis is supported by DNA topoisomerase I with a precise time schedule. Orotic acid administration abolishes this response and causes an overall loss in DNA topoisomerase I activity.
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Affiliation(s)
- P Giannoni
- Institute of General Physiology, University of Genoa, Italy
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33
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Cesarone CF, Scarabelli L, Giannoni P, Orunesu M. Differential assay and biological significance of poly(ADP-ribose) polymerase activity in isolated liver nuclei. Mutat Res 1990; 245:157-63. [PMID: 2122245 DOI: 10.1016/0165-7992(90)90044-k] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [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: 12/30/2022]
Abstract
Poly(ADP-ribosyl)ation of nuclear proteins is catalyzed by poly(ADP-ribose) polymerase. This enzyme is involved in the regulation of basic cellular functions of DNA metabolism. DNA breaks induced by DNA-damaging agents trigger the activation of poly(ADP-ribose) polymerase increasing its endogenous level. This increase modifies the pattern of poly(ADP-ribosyl)ated chromatin proteins. In this paper we describe a procedure for the isolation of intact nuclei from rat liver to be used for the endogenous activity assay. Artifactual activation of the enzyme was avoided since a very low level of DNA-strand breaks occurs during the isolation of nuclei. We present a series of experiments which prove the ability of this procedure to detect increases in endogenous liver activity without modification of the total level. The application of this technique can be useful for a better understanding of the role of early changes in poly(ADP-ribose) polymerase level in physiological conditions and during exposure to DNA-damaging agents.
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Affiliation(s)
- C F Cesarone
- Institute of General Physiology, Faculty of Sciences, University of Genoa, Italy
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34
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Cesarone CF, Scarabelli L, Scovassi AI, Izzo R, Menegazzi M, Carcereri De Prati A, Orunesu M, Bertazzoni U. Changes in activity and mRNA levels of poly(ADP-ribose) polymerase during rat liver regeneration. Biochim Biophys Acta 1990; 1087:241-6. [PMID: 2121285 DOI: 10.1016/0167-4781(90)90211-j] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
ADP-ribosylation of nuclear proteins, catalysed by the enzyme poly(ADP-ribose) polymerase, is involved in the regulation of different cellular processes of DNA metabolism. To further clarify the role of the enzyme during proliferating activity of mammalian cells, we have studied the control of gene expression in regenerating rat liver. The changes in activity and mRNA levels were analysed during the early and late phases of the compensatory model. When enzyme activity was measured in isolated liver nuclei obtained at different times after hepatectomy, two different phases were observed: an early wave occurring before the onset of DNA synthesis, and a second one, starting several hours after the onset of DNA synthesis and returning to control values at later times. The evaluation of the enzymatic level in nuclear extracts and by activity gel analysis showed a more gradual increase starting 1 day after hepatectomy, in concomitance with the peak of DNA synthesis. By using a specific murine cDNA probe, a significant enhancement of mRNA levels for poly(ADP-ribose) polymerase was observed during liver regeneration, slightly preceding the onset of DNA synthesis. The results obtained show that changes in poly(ADP-ribose) polymerase activity, during liver regeneration, are associated both to early events preceding the increase in DNA synthesis and to later phases of the cell proliferation process.
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Affiliation(s)
- C F Cesarone
- Istituto di Fisiologia Generale, Facoltá di Scienze, Genova, Italy
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Cesarone CF, Scarabelli L, Giannoni P, Gallo G, Orunesu M. Relationship between poly(ADP-ribose) polymerase activity and DNA synthesis in cultured hepatocytes. Biochem Biophys Res Commun 1990; 171:1037-43. [PMID: 2121137 DOI: 10.1016/0006-291x(90)90788-o] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [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: 12/30/2022]
Abstract
Previous studies have demonstrated that an increase in poly(ADP-ribose) polymerase activity could be closely related to DNA replication during liver regeneration and to DNA repair synthesis in different experimental systems. This relationship was further investigated by studying the time course of endogenous and total poly(ADP-ribose) polymerase activity in cultured rat hepatocytes stimulated by epidermal growth factor. This mitogen has been shown to stimulate DNA synthesis in liver cells both in vivo and in vitro. A 6-fold increase in endogenous activity was observed early after epidermal growth factor addition, just before DNA synthesis. A subsequent 4-fold increment in total enzyme activity, concomitant with DNA synthesis, was detected. Orotic acid, which has recently shown mitoinhibitory effect, abolished the epidermal-growth-factor-induced increase in endogenous and total poly(ADP-ribose) polymerase activity, as well as DNA synthesis. On the contrary, 3-aminobenzamide inhibitor of poly(ADP-ribose) polymerase completely suppressed the endogenous activity but only partially modified the increase in total catalytic level and the overall pattern of thymidine incorporation. Taken together, these data indicate that, in cultured hepatocytes, the induction of DNA synthesis is supported by an increased poly(ADP-ribose) polymerase activity.
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Affiliation(s)
- C F Cesarone
- Institute of General Physiology, University of Genoa, Faculty of Sciences, Italy
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Cesarone CF, Scovassi AI, Scarabelli L, Izzo R, Orunesu M, Bertazzoni U. Depletion of adenosine diphosphate-ribosyl transferase activity in rat liver during exposure to N-2-acetylaminofluorene: effect of thiols. Cancer Res 1988; 48:3581-5. [PMID: 3288330] [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: 01/05/2023]
Abstract
The exposure of rats to a feeding regimen containing N-2-acetylaminofluorene (2AAF) causes an accumulation of lesions on liver DNA and a progressive impairment in DNA repair capacity. We used the in vivo experimental model of Teebor and Becker (Cancer Res., 31:1-3, 1971) with the carcinogen given to rats during four consecutive cycles, each one composed of 3 weeks of treatment and 1 week of recovery. The extent of DNA damage and repair was determined during each cycle by the alkaline elution technique. The results obtained showed that the number of alkalilabile sites in DNA is significantly enhanced after the first cycle and remains increased during following cycles. Since ADP-ribosyl transferase (ADPRT) is known to play a central role in the response to DNA damage, we investigated the effect of 2AAF on this enzyme during the carcinogenic process. The activity and the structure of ADPRT were analyzed using the activity gel and Western blot techniques. The catalytic band with a molecular weight of 116,000, clearly evident in liver extracts of control rats, was no longer detectable after one cycle of exposure to 2AAF returning progressively to an almost normal level within the last two cycles. When the aminothiol N-acetyl-L-cysteine (NAC) was added to the 2AAF diet, the extent of DNA damage was drastically reduced, and DNA repair activity preserved for a longer period. In addition, the loss of ADPRT was not observed after the first cycle, but delayed to the end of the second, indicating that NAC exerts a protective effect on DNA and on ADPRT. Such effect was not evident when NAC was substituted by glutathione. The analysis of liver extracts on Western blot showed that the ADPRT immunoreactive band was almost undetectable after the first cycle suggesting that the loss in enzyme activity could be due to a block in de novo synthesis of the enzyme and not to an inhibition of its activity.
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Affiliation(s)
- C F Cesarone
- Institute of General Physiology, Faculty of Sciences, University of Genoa, Italy
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Cesarone CF, Romano M, Serra D, Scarabelli L, De Flora S. Effects of aminothiols in 2-acetylaminofluorene-treated rats. II. Glutathione cycle and liver cytosolic activities. In Vivo 1987; 1:93-9. [PMID: 2979775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Reduced glutathione, enzymes involved in its metabolism and other cytosolic activities were evaluated in liver preparations of Wistar rats fed with a diet supplemented with 2-acetylaminofluorene (0.05%) and/or with glutathione or N-acetyl-L-cysteine (0.1%). The treatment lasted 4 cycles, each composed of 3 weeks of special diet followed by 1 week of standard diet. The carcinogen produced a considerable increase in gamma-glutamyl transpeptidase in liver homogenates at cycles III and IV, with an irreversible trend which was not discontinued even during the weeks of standard diet. Moreover, generally from cycle I, 2-acetylaminofluorene stimulated several enzyme activities in the liver cytosol, such as glutathione S-transferase, glutathione reductase, glucose 6-phosphate dehydrogenase, NADH- and NADPH-dependent diaphorases. Administration of the two aminothiols to untreated rats resulted in a significant enhancement of glutathione peroxidase, glucose 6-phosphate dehydrogenase and diaphorases. In 2-acetylaminofluorene-treated rats, both thiols further stimulated glutathione S-transferase during the last treatment cycles and attenuated gamma-glutamyl transpeptidase activity, which however was not sufficient to thoroughly counteract the liver lesions due to the massive feeding of the carcinogen. Hepatocellular glutathione was enhanced during the last cycle of treatment with 2-acetylaminofluorene, and was further increased by co-administration of exogenous glutathione.
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Affiliation(s)
- C F Cesarone
- Institute of General Physiology, University of Genoa, Italy
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Cesarone CF, Scarabelli L, Orunesu M, Bagnasco M, De Flora S. Effects of aminothiols in 2-acetylaminofluorene-treated rats. I. Damage and repair of liver DNA, hyperplastic foci, and Zymbal gland tumors. In Vivo 1987; 1:85-91. [PMID: 2908770] [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: 01/03/2023]
Abstract
One hundred and seventy-nine male Wistar rats were divided into 6 groups and fed with a standard diet supplemented with 0.05% 2-acetylaminofluorene (2AAF) and/or 0.1% glutathione (GSH) or N-acetyl-L-cysteine (NAC). Each treatment cycle lasted for 3 weeks, followed by 1 week of standard meal. After 4 cycles, survival was 100% in the 3 control groups, and 86.0, 100 and 91.7%, in the groups receiving 2AAF, 2AAF plus GSH, and 2AAF plus NAC, respectively. After an additional 4-8 weeks, all the 5 surviving rats fed with 2AAF exhibited deforming ear tumors, which on histological examination were classified as sebaceous squamocellular carcinomas of Zymbal glands. No such tumors were detectable in control groups, nor in the 16 surviving rats fed with 2AAF plus GSH or NAC. In the liver, 2AAF produced significant DNA damage at the 3rd week of each cycle, which was partially repaired during the week of standard meal feeding. Moreover, 2AAF determined the appearance of gamma-glutamyl transpeptidase-positive foci, which tended to increase with time both in number and in size. GSH and NAC exerted similar protective effects on these phenomena, but only at early stages of the experimental model used.
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Affiliation(s)
- C F Cesarone
- Institute of General Physiology, University of Genoa, Italy
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Scarabelli L, Bonandrini L, Cebrelli CF. [Intestinal infarct and the short intestine syndrome]. MINERVA CHIR 1986; 41:1913-21. [PMID: 3822176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Cesarone CF, Scarabelli L, Orunesu M. Effect of glutathione on alterations of liver DNA structure and metabolic activities induced in vivo by 2-acetylaminofluorene. Anticancer Res 1986; 6:1283-6. [PMID: 2880550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The effect on liver tissue of glutathione administration to rats treated for 7-14 days with 2-acetylaminofluorene was investigated. The DNA damage induced by the hepatotoxic agent and evaluated by the alkaline elution technique was significantly reduced by glutathione. Furthermore, GSH administration maintained liver GSH level, prevented the increase in alkaline phosphatase and reduced the decrease in glucose-6-phosphatase activity. GSH did not significantly influence the increase in gamma-glutamyl-transpeptidase and glutathione-S-transferase activities.
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Cesarone CF, Scarabelli L, Orunesu M. Effect of glutathione and N-acetylcysteine on hepatocellular modifications induced by 2-acetylaminofluorene. Toxicol Pathol 1986; 14:445-50. [PMID: 2880383 DOI: 10.1177/019262338601400410] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The exposure of rats to a dietary regimen containing 2-acetylaminofluorene induces a sequence of hepatocellular alterations leading to the development of preneoplastic nodules. Groups of 2-acetylaminofluorene-treated rats were given glutathione or N-acetylcysteine to evaluate the effects of these different thiols on the sequence of events that originate transformed cells. It is well known that intracellular thiols protect biological macromolecules from scavenging free radicals and electrophilic compounds produced by the metabolism of chemical agents. Male Wistar rats were maintained on a feeding regimen containing 0.05% 2-acetylaminofluorene. The diet of 2 groups of 2-acetylaminofluorene-treated animals was supplemented with either 0.1% glutathione or N-acetylcysteine. The effects in the liver of the exogenously supplied thiols during 2-acetylaminofluorene treatment were assessed evaluating DNA damage, glutathione levels, activity of marker enzymes glucose-6-phosphatase, gamma-glutamyltranspeptidase, and glutathione-S-transferase, survival rates, and development of salivary gland tumors. Our results demonstrate that the mortality due to 2-acetylaminofluorene exposure was reduced or completely abolished by thiols and that the development of salivary gland tumors was inhibited. Exogenously supplied thiols significantly reduced DNA damage as assessed by alkaline elution. At the doses employed, glutathione and N-acetylcysteine induce early stimulation of glutathione-S-transferase, had little effect on the loss of glucose-6-phosphatase activity and scanty influence on the net increase in gamma-glutamyltranspeptidase activity.
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Scarabelli L, Cebrelli C, Bonandrini L. [Morgagni-Larrey hernia (author's transl)]. Chir Ital 1979; 31:742-57. [PMID: 540376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The authors describe minutely Morgagni-Larrey hernia, that is the least frequent of the spontaneous herniae of diaphragm, but it seems that it has a real superior incidence that in past time. They sop, particularly, to sketch the different stages of diagphragmatic embryogenesis that, in its complexity, induces to morphogenetic mistakes of variable relief. These mistakes have always their role in the pathodenic mechanism of considerate disease. In the end, they report a case which happened to their observation and that seems to resume the paradigmatic data of Morgagni-Larrey hernia, for its etiopathogenic, anatomo-pathologic and symptomatologic characteristics.
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Scarabelli L, Bellomo G, Jemoli R, Cerelli C, Fogari R. [The hematic histamina in malignant tumors of alimentary canal and respiratory apparatus (author's transl)]. Chir Ital 1979; 31:789-95. [PMID: 540378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The Authors estimated the blood histamine level in 39 subjects with malignant tumors of the lung (19), Sthomac (11) and colon (9) and found a significant increase with respect to normal values. Among the groups investigated, the subjects with gastric tumors presented the greatest values. The results show a significant relationship between tumor and hyperhistaminemia as demonstrated by other Authors in experimental animals.
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Scarabelli L, Jemoli R, Bellomo G, Cebrelli C, Fogari R. [Total hematic histamine in gastrectomized patients]. Chir Ital 1979; 31:796-801. [PMID: 540379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The Authors estimated the blood histamine in 15 patients after gastric-resection and found a significant decrease in all the cases with respect either to basal valus or to normal subjects. The autors suppose it is due to a lower presence of istidin-decarbojlase, owing to removal of gastric tissue where such enzime is placed.
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Bonandrini L, Scarabelli L, Della Valle A. [Malherbe's pilomatricoma (ultrastructural study)]. Chir Ital 1979; 31:802-14. [PMID: 540380] [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: 12/23/2022]
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Scarabelli L, Bonandrini L, Sirchi M, Fraipont G. [Hodgkin's lymphoma with "primary" ileal localization]. Chir Ital 1979; 31:758-88. [PMID: 540377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The authors describe an observation of Hodgking's disease with primitive location in ileum, that they treated urgently for intestinal stoppage. After having explained the peculiar history of this disease, they analyze the diagnostic and therapeutic principles, emphasizing the elements that are useful for determining the primitivity of the form and the peculiarity of the treatment.
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Scarabelli L, Bonandrini L, Fraipont G, Sirchi M. [Pneumatosis cystoides intestinalis]. Chir Ital 1979; 31:321-4. [PMID: 398751] [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]
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Bonandrini L, Scarabelli L, Bertazzoni G, Papalia U. [Clinical utilization of the umbilical vessels (author's transl)]. Chir Ital 1978; 30:838-49. [PMID: 753541] [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: 12/24/2022]
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Scarabelli L, Bonandrini L, Ascari E. [Paraneoplastic syndromes in cancer of the kidney (author's transl)]. Chir Ital 1978; 30:860-82. [PMID: 380832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Starting with the description of their own observations of paraneoplastic syndromes in adult patients with cancer of the kidneys, the authors discuss the possible pathogenetic mechanisms and the more characteristic clinical features of said syndrome. They conclude by advocating a systematic search for such paraneoplastic syndromes as an aid to early diagnosis of renal malignancy and also as a working parameter for assessing the evolution of the tumor and the effectiveness of treatment.
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Scarabelli L, Bonandrini L. [Rosanov's procedure after total gastrectomy for cancer]. Minerva Med 1975; 66:3589-91. [PMID: 1187004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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