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Cappellini G, Mancini M, Pagano G, Lombardi P, Livi L, Siciliani de Cumis M, Cancio P, Pizzocaro M, Calonico D, Levi F, Sias C, Catani J, Inguscio M, Fallani L. Direct observation of coherent interorbital spin-exchange dynamics. PHYSICAL REVIEW LETTERS 2014; 113:120402. [PMID: 25279608 DOI: 10.1103/physrevlett.113.120402] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Indexed: 06/03/2023]
Abstract
We report on the first direct observation of fast spin-exchange coherent oscillations between different long-lived electronic orbitals of ultracold 173Yb fermions. We measure, in a model-independent way, the strength of the exchange interaction driving this coherent process. This observation allows us to retrieve important information on the interorbital collisional properties of 173Yb atoms and paves the way to novel quantum simulations of paradigmatic models of two-orbital quantum magnetism.
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Pautasso A, Desiato R, Bertolini S, Vitale N, Radaelli MC, Mancini M, Rizzo F, Mosca A, Calzolari M, Prearo M, Mandola ML, Maurella C, Mignone W, Chiavacci L, Casalone C. Mosquito surveillance in northwestern Italy to monitor the occurrence of tropical vector-borne diseases. Transbound Emerg Dis 2014; 60 Suppl 2:154-61. [PMID: 24589116 DOI: 10.1111/tbed.12123] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Indexed: 11/27/2022]
Abstract
Mosquito-borne arboviruses (MBV) represent an important health problem, causing diseases and deaths both in human and animals mainly in tropical and subtropical countries. In recent years, they have emerged also in temperate regions where they have caused epidemics. Of mounting concern among public health authorities in Europe are zoonotic mosquito-borne viruses belonging to the Flavivirus genus. The aim of this study was to carry out active surveillance on mosquitoes in two regions of northwestern Italy (Liguria and Piedmont) to gain a better knowledge of the mosquito populations by identifying potential vectors of arboviruses and to investigate arbovirus infection. A network of 61 CO₂ CDC traps was placed in the study area; sampling was conducted from May to October 2011. A total of 46,677 mosquitoes was collected, identified to species level, and classified according to their vector competence. Mosquitoes collected from 16 traps, selected according to risk-based factors, were tested by biomolecular analysis to detect flavivirus infection. This study highlights the importance of entomological surveillance in northwestern Italy because most of the mosquitoes collected were found to have high vector competence. Moreover, the risk-based virological surveillance allowed to detect the presence of mosquito flavivirus RNA, phylogenetically closely related to the MMV Spanish isolate, in three pools and USUV RNA in one pool in new areas where it has not been reported previously. The availability of continuous data on mosquito populations provides invaluable information for use in cases of an epidemic emergency. Maintenance of this integrated system for the next years will provide stronger data that can inform the design of a risk-based surveillance for the early detection of the occurrence of outbreaks of tropical MBDs.
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Stefanelli M, Mancini M, Raggio M, Nardis S, Fronczek FR, McCandless GT, Smith KM, Paolesse R. 3-NO2-5,10,15-triarylcorrolato-Cu as a versatile platform for synthesis of novel 3-functionalized corrole derivatives. Org Biomol Chem 2014; 12:6200-7. [PMID: 25005049 PMCID: PMC4137568 DOI: 10.1039/c4ob01247j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
β-Nitrocorroles are potentially valuable platforms for the preparation of a wide range of more elaborated corrole derivatives possessing unique chemical functionalities and electronic properties. Here we report our results on the chemical manipulation of a copper 3-NO2-triarylcorrolate using different organic reactions, all involving the reduction of -NO2 to -NH2 at an early stage, followed by further transformations. By way of a β-acylated copper corrolate, a novel corrole derivative bearing an alkyl azide group on the peripheral positions was obtained and exploited in the Huisgen 1,3-dipolar cycloaddition.
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Gruson D, Mancini M, Ahn SA, Rousseau MF. Measurement of Galectin-3 with the ARCHITECT assay: Clinical validity and cost-effectiveness in patients with heart failure. Clin Biochem 2014; 47:1006-9. [PMID: 24925289 DOI: 10.1016/j.clinbiochem.2014.06.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2014] [Revised: 05/25/2014] [Accepted: 06/02/2014] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Galectin-3 (Gal-3) testing is emerging as a valuable tool for the prognosis of heart failure (HF). Our objectives were to determine the clinical validity and cost-effectiveness of the recently developed ARCHITECT Gal-3 automated immunoassay. DESIGN AND METHODS Gal-3 levels were measured in HF patients with reduced left ventricular ejection fraction with the ARCHITECT i2000SR Gal-3 assay as well as with the reference Gal-3 ELISA assay. The relationship between Gal-3 levels determined with the automated assay and HF severity as well as its predictive value for long-term cardiovascular death were evaluated. The impact of Gal-3 testing on the diagnostic related group (DRG) based reimbursement was also estimated. RESULTS Gal-3 levels measured with the ARCHITECT assay were related to the severity of HF based on New York Heart Association functional classes (p<0.001) and were also significantly and positively correlated to BNP concentrations (r=0.35, p<0.001). Gal-3 values higher than 19.2 ng/mL were predictive of long-term cardiovascular death in patients with systolic HF and also provided incremental prognostic information to BNP testing. In addition, Gal-3 testing was estimated to save DRG in comparison to standard of care. CONCLUSIONS Our results demonstrated the clinical validity of the ARCHITECT Gal-3 automated immunoassay for the risk stratification of HF patients. The automation of Gal-3 testing was also cost-effective and might help to preserve hospital budget.
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105
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Mancini M, Gariboldi MB, Taiana E, Bonzi MC, Craparotta I, Pagin M, Monti E. Co-targeting the IGF system and HIF-1 inhibits migration and invasion by (triple-negative) breast cancer cells. Br J Cancer 2014; 110:2865-73. [PMID: 24853185 PMCID: PMC4056066 DOI: 10.1038/bjc.2014.269] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Revised: 04/15/2014] [Accepted: 04/23/2014] [Indexed: 12/31/2022] Open
Abstract
Background: Metastatic triple-negative breast cancer is mostly incurable, due to lack of suitable drug targets. The insulin-like growth factor (IGF) system could provide such a target, and IGF-1 receptor (IGF-1R)-directed agents are already available, but seem unable to control all the complexities of the system, including crosstalk with hypoxia-inducible pathways. Methods: Migration of triple-negative MDA-231 breast cancer cells and its modulation by IGFs, the IGF-1R inhibitor NVP-AEW541 and the IGF-2-sequestering monoclonal antibody MAB292 were assessed by the scratch wound healing and Boyden chamber assays; the effect of topotecan (inhibiting hypoxia-inducible factor-1 (HIF-1)) under hypoxia was also evaluated. Constitutive as well as drug-modulated levels of components of the IGF and HIF-1 pathways were evaluated by western blotting and qPCR. Results: IGF-induced migration of MDA-231 cells was not abrogated by the IGF-1R inhibitor NVP-AEW541, whereas IGF-2 sequestration by MAB292 significantly reduced cell migration. Under hypoxia, topotecan was also effective, likely by reducing HIF-1-induced IGF-2 release. Simultaneous targeting of IGF-1R and IGF-2 or HIF-1 completely abolished cell migration. Conclusions: IR activation may account for the failure of NVP-AEW541 to suppress MDA-231 cell migration. Ligand-targeting compounds, or co-inhibition of the IGF and HIF-1 systems, may prevent activation of compensatory signalling, thereby providing a valuable addition to IGF-1R inhibitor-based therapies.
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Šilhavý J, Zídek V, Landa V, Šimáková M, Mlejnek P, Škop V, Oliyarnyk O, Kazdová L, Mancini M, Saar K, Schulz H, Hübner N, Kurtz TW, Pravenec M. Rosuvastatin Can Block Pro-Inflammatory Actions of Transgenic Human C-Reactive Protein Without Reducing its Circulating Levels. Cardiovasc Ther 2014; 32:59-65. [DOI: 10.1111/1755-5922.12061] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Sapienza MR, Fuligni F, Agostinelli C, Tripodo C, Righi S, Laginestra MA, Pileri A, Mancini M, Rossi M, Ricci F, Gazzola A, Melle F, Mannu C, Ulbar F, Arpinati M, Paulli M, Maeda T, Gibellini D, Pagano L, Pimpinelli N, Santucci M, Cerroni L, Croce CM, Facchetti F, Piccaluga PP, Pileri SA. Molecular profiling of blastic plasmacytoid dendritic cell neoplasm reveals a unique pattern and suggests selective sensitivity to NF-kB pathway inhibition. Leukemia 2014; 28:1606-16. [PMID: 24504027 PMCID: PMC4294271 DOI: 10.1038/leu.2014.64] [Citation(s) in RCA: 121] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Revised: 01/07/2014] [Accepted: 01/28/2014] [Indexed: 12/12/2022]
Abstract
Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a rare disease of controversial origin recently recognized as a neoplasm deriving from plasmacytoid dendritic cells (pDCs). Nevertheless, it remains an orphan tumor with obscure biology and dismal prognosis. To better understand the pathobiology of BPDCN and discover new targets for effective therapies, the gene expression profile (GEP) of 25 BPDCN samples was analyzed and compared with that of pDCs, their postulated normal counterpart. Validation was performed by immunohistochemistry (IHC), whereas functional experiments were carried out ex vivo. For the first time at the molecular level, we definitely recognized the cellular derivation of BPDCN that proved to originate from the myeloid lineage and in particular, from resting pDCs. Furthermore, thanks to an integrated bioinformatic approach we discovered aberrant activation of the NF-kB pathway and suggested it as a novel therapeutic target. We tested the efficacy of anti-NF-kB-treatment on the BPDCN cell line CAL-1, and successfully demonstrated by GEP and IHC the molecular shutoff of the NF-kB pathway. In conclusion, we identified a molecular signature representative of the transcriptional abnormalities of BPDCN and developed a cellular model proposing a novel therapeutic approach in the setting of this otherwise incurable disease.
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Giordano C, Iommarini L, Giordano L, Maresca A, Pisano A, Valentino ML, Caporali L, Liguori R, Deceglie S, Roberti M, Fanelli F, Fracasso F, Ross-Cisneros FN, D’Adamo P, Hudson G, Pyle A, Yu-Wai-Man P, Chinnery PF, Zeviani M, Salomao SR, Berezovsky A, Belfort R, Ventura DF, Moraes M, Moraes Filho M, Barboni P, Sadun F, De Negri A, Sadun AA, Tancredi A, Mancini M, d’Amati G, Loguercio Polosa P, Cantatore P, Carelli V. Efficient mitochondrial biogenesis drives incomplete penetrance in Leber's hereditary optic neuropathy. Brain 2014; 137:335-53. [PMID: 24369379 PMCID: PMC3914475 DOI: 10.1093/brain/awt343] [Citation(s) in RCA: 200] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2013] [Revised: 09/06/2013] [Accepted: 10/21/2013] [Indexed: 12/16/2022] Open
Abstract
Leber's hereditary optic neuropathy is a maternally inherited blinding disease caused as a result of homoplasmic point mutations in complex I subunit genes of mitochondrial DNA. It is characterized by incomplete penetrance, as only some mutation carriers become affected. Thus, the mitochondrial DNA mutation is necessary but not sufficient to cause optic neuropathy. Environmental triggers and genetic modifying factors have been considered to explain its variable penetrance. We measured the mitochondrial DNA copy number and mitochondrial mass indicators in blood cells from affected and carrier individuals, screening three large pedigrees and 39 independently collected smaller families with Leber's hereditary optic neuropathy, as well as muscle biopsies and cells isolated by laser capturing from post-mortem specimens of retina and optic nerves, the latter being the disease targets. We show that unaffected mutation carriers have a significantly higher mitochondrial DNA copy number and mitochondrial mass compared with their affected relatives and control individuals. Comparative studies of fibroblasts from affected, carriers and controls, under different paradigms of metabolic demand, show that carriers display the highest capacity for activating mitochondrial biogenesis. Therefore we postulate that the increased mitochondrial biogenesis in carriers may overcome some of the pathogenic effect of mitochondrial DNA mutations. Screening of a few selected genetic variants in candidate genes involved in mitochondrial biogenesis failed to reveal any significant association. Our study provides a valuable mechanism to explain variability of penetrance in Leber's hereditary optic neuropathy and clues for high throughput genetic screening to identify the nuclear modifying gene(s), opening an avenue to develop predictive genetic tests on disease risk and therapeutic strategies.
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Palmieri C, Mancini M, Benazzi C, Della Salda L. Heat shock protein 90 is associated with hyperplasia and neoplastic transformation of canine prostatic epithelial cells. J Comp Pathol 2014; 150:393-8. [PMID: 24679854 DOI: 10.1016/j.jcpa.2014.01.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Revised: 11/02/2013] [Accepted: 01/17/2014] [Indexed: 11/19/2022]
Abstract
Heat shock protein 90 (HSP90) is a molecular chaperone that regulates critical signalling proteins of cancer development and progression. Abnormal levels of HSP90 have been observed in human prostatic carcinoma (PC), with prognostic and therapeutic implications. Since spontaneously arising canine PC is a valuable model for the human disease, the aim of this study was to evaluate the immunohistochemical expression of HSP90 in two normal canine prostates, 17 canine prostates with benign prostatic hyperplasia (BPH) and five canine prostates with PC. HSP90 was expressed in the cytoplasm of epithelial cells in all samples, with a significant increase in labelled cells in PCs. Nuclear labelling was observed occasionally in normal tissue, but was increased in BPH and PC. HSP90 immunoreactivity in preneoplastic lesions (proliferative inflammatory atrophy and prostatic intraepithelial neoplasia) was similar to that in PCs. Increased HSP90 expression in canine PCs suggests the involvement of this molecule in carcinogenesis and tumour progression, supporting HSP90 as a potential target for therapeutic intervention.
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Bonfili P, Franzese P, Di Staso M, Ruggieri V, Di Genova D, Mancini M, Cerasani M, Reale M, Ferella L, Di Cesare E. EP-1369: PDRNs intravesical instillations reduces symptoms of interstitial radiation-induced cystitis. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)31487-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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111
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Di Staso M, Bonfili P, Franzese P, Gravina G, Ruggieri V, Marampon F, Mancini M, Di Genova D, Vittorini F, Di Cesare E. EP-1377: Percutaneous radiofrequency ablation followed by radiotherapy in the management of painful bone metastases. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)31495-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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112
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Liška F, Mancini M, Krupková M, Chylíková B, Křenová D, Šeda O, Šilhavý J, Mlejnek P, Landa V, Zídek V, d' Amati G, Pravenec M, Křen V. Plzf as a candidate gene predisposing the spontaneously hypertensive rat to hypertension, left ventricular hypertrophy, and interstitial fibrosis. Am J Hypertens 2014; 27:99-106. [PMID: 23975223 DOI: 10.1093/ajh/hpt156] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND The spontaneously hypertensive rat (SHR) is the most widely used model of essential hypertension and is susceptible to left ventricular hypertrophy (LVH) and myocardial fibrosis. Recently, a quantitative trait locus (QTL) that influences heart interstitial fibrosis was mapped to chromosome 8. Our aim was to dissect the genetic basis of this QTL(s) predisposing SHR to hypertension, LVH, and interstitial fibrosis. METHODS Hemodynamic and histomorphometric analyses were performed in genetically defined SHR.PD-chr.8 minimal congenic strain (PD5 subline) rats. RESULTS The differential segment, genetically isolated within the PD5 subline, spans 788kb and contains 7 genes, including the promyelocytic leukemia zinc finger (Plzf) gene that has been implicated in hypertrophy and cardiac fibrosis. Mutant Plzf allele contains a 2,964-bp deletion in intron 2. The PD5 congenic strain, when compared with the SHR, showed significantly reduced systolic blood pressure by approximately 15mm Hg (P = 0.002), amelioration of LVH (0.23±0.02 vs. 0.39±0.02g/100g body weight; P < 0.00001), and reduced interstitial fibrosis (17,478±1,035 vs. 41,530±3,499 μm(2); P < 0.0001). The extent of amelioration of LVH and interstitial fibrosis was disproportionate to blood pressure decrease in congenic rats, suggesting an important role for genetic factors. Cardiac expression of Plzf was significantly reduced in prehypertensive (8 and 21 days) congenic animals compared with controls. CONCLUSIONS These results provide compelling evidence of a significant role for genetic factors in regulating blood pressure, LVH, and cardiac fibrosis and identify mutant Plzf as a prominent candidate gene.
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113
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Marampon F, Gravina G, La Verghetta M, Cerasani M, Parente S, Mancini M, Di Genova D, Ferella L, Reale M, Di Cesare E. PO-0941: MEK/ERK inhibition radiosensitizes rhabdomyosarcoma cells by downregulating growth and DNA repair signals. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)31059-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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114
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Marampon F, La Verghetta M, Cerasani M, Gravina G, Parente S, Mancini M, Di Genova D, Ferella L, Reale M, Di Cesare E. PO-0942: MEK/ERK-AURORA-B/DNA-PK Pathway activation regulates radioresistance of gynecological cancer cell lines. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)31060-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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115
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Moreno-Moral A, Mancini M, D'Amati G, Camici P, Petretto E. Transcriptional network analysis for the regulation of left ventricular hypertrophy and microvascular remodeling. J Cardiovasc Transl Res 2013; 6:931-44. [PMID: 23929067 DOI: 10.1007/s12265-013-9504-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Accepted: 07/21/2013] [Indexed: 12/31/2022]
Abstract
Hypertension and cardiomyopathies share maladaptive changes of cardiac morphology, eventually leading to heart failure. These include left ventricular hypertrophy (LVH), myocardial fibrosis, and structural remodeling of coronary microcirculation, which is the morphologic hallmark of coronary microvascular dysfunction. To pinpoint the complex molecular mechanisms and pathways underlying LVH-associated cardiac remodeling independent of blood pressure effects, we employed gene network approaches to the rat heart. We used the Spontaneously Hypertensive Rat model showing many features of human hypertensive cardiomyopathy, for which we collected histological and histomorphometric data of the heart and coronary vasculature, and genome-wide cardiac gene expression. Here, we provide a large catalogue of gene co-expression networks in the heart that are significantly associated with quantitative variation in LVH, microvascular remodeling, and fibrosis-related traits. Many of these networks were significantly conserved to human idiopathic and/or ischemic cardiomyopathy patients, suggesting a potential role for these co-expressed genes in human heart disease.
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Curatolo P, Rotunno R, Miraglia E, Mancini M, Calvieri S, Giustini S. Complete remission of Merkel cell carcinoma treated with electrochemotherapy and etoposide. GIORN ITAL DERMAT V 2013; 148:310-311. [PMID: 23670070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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117
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Costa L, Lin C, Grossi D, Mancini M, Swisher A, Cook C, Vaughn D, Elkins M, Sheikh U, Moore A, Jull G, Craik R, Maher C, Guirro R, Marques A, Harms M, Brooks D, Simoneau G, Strupstad J. Registrierung Klinischer Studien. PHYSIOSCIENCE 2013. [DOI: 10.1055/s-0033-1335485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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118
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Lorusso D, Cirillo F, Mancini M, Spatti G, Grijuela B, Ditto A, Raspagliesi F. The Different Impact ofBRCAMutations on the Survival of Epithelial Ovarian Cancer Patients: A Retrospective Single-Center Experience. Oncology 2013; 85:122-7. [DOI: 10.1159/000353786] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Accepted: 06/10/2013] [Indexed: 11/19/2022]
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119
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Mancini M, Petretto E, Kleinert C, Scavone A, De T, Cook S, Silhavy J, Zidek V, Pravenec M, d'Amati G, Camici PG. Mapping genetic determinants of coronary microvascular remodeling in the spontaneously hypertensive rat. Basic Res Cardiol 2013; 108:316. [PMID: 23197152 DOI: 10.1007/s00395-012-0316-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2012] [Revised: 11/13/2012] [Accepted: 11/19/2012] [Indexed: 02/01/2023]
Abstract
The mechanisms underlying coronary microvascular remodeling and dysfunction, which are critical determinants of abnormal myocardial blood flow regulation in human hypertension, are poorly understood. The spontaneously hypertensive rat (SHR) exhibits many features of human hypertensive cardiomyopathy. We demonstrate that remodeling of intramural coronary arterioles is apparent in the SHR already at 4 weeks of age, i.e. before the onset of systemic hypertension. To uncover possible genetic determinants of coronary microvascular remodeling, we carried out detailed histological and histomorphometric analysis of the heart and coronary vasculature in 30 weeks old SHR, age-matched Brown Norway (BN-Lx) parentals and BXH/HXB recombinant inbred (RI) strains. Using previously mapped expression quantitative trait loci (eQTLs), we carried out a genome-wide association analysis between genetic determinants of cardiac gene expression and histomorphometric traits. This identified 36 robustly mapped eQTLs in the heart which were associated with medial area of intramural coronary arterioles [false discovery rate (FDR) ~5%]. Transcripts, which were both under cis-acting genetic regulation and significantly correlated with medial area (FDR <5%), but not with blood pressure indices, were prioritized and four candidate genes were identified (Rtel1, Pla2g5, Dnaja4 and Rcn2) according to their expression levels and biological functions. Our results demonstrate that genetic factors play a role in the development of coronary microvascular remodeling and suggest blood pressure independent candidate genes for further functional experiments.
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Mancini M, Nobili F, Tossici R, Marassi R. Study of the electrochemical behavior at low temperatures of green anodes for Lithium ion batteries prepared with anatase TiO2 and water soluble sodium carboxymethyl cellulose binder. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2012.08.115] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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121
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Mancini M, Ramondino S, Di Rocco R, Ratti M, Lorusso D, Raspagliesi F. Case Control Study on Two Different Chemotherapy Regimens in Advanced Mixed Mullerian Tumours. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)33562-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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122
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Lorusso D, Mancini M, Di Rocco R, Fontanelli R, Raspagliesi F. The role of secondary surgery in recurrent ovarian cancer. Int J Surg Oncol 2012; 2012:613980. [PMID: 22919475 PMCID: PMC3420128 DOI: 10.1155/2012/613980] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2012] [Accepted: 05/30/2012] [Indexed: 12/28/2022] Open
Abstract
Despite optimal treatment (complete cytoreduction and adjuvant chemotherapy), 5-year survival for advanced ovarian cancer is approximately 30% and most patients succumb to their disease. Cytoreductive surgery is accepted as a major treatment of primary ovarian cancer but its role in recurrent disease is controversial and remains a field of discussion mainly owing to missing data from prospective randomized trials. A critical review of literature evidence on secondary surgery in recurrent ovarian cancer will be described.
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Lena AM, Mancini M, Rivetti di Val Cervo P, Saintigny G, Mahé C, Melino G, Candi E. MicroRNA-191 triggers keratinocytes senescence by SATB1 and CDK6 downregulation. Biochem Biophys Res Commun 2012; 423:509-14. [PMID: 22683624 PMCID: PMC3400053 DOI: 10.1016/j.bbrc.2012.05.153] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Accepted: 05/26/2012] [Indexed: 01/08/2023]
Abstract
Keratinocyte replicative senescence has an important role in time-dependent changes of the epidermis, a tissue with high turnover. Senescence encompasses growth arrest during which cells remain metabolically active but acquire a typical enlarged, vacuolar and flattened morphology. It is also accompanied by the expression of endogenous senescence-associated-β-galactosidase and specific gene expression profiles. MicroRNAs levels have been shown to be modulated during keratinocytes senescence, playing key roles in inhibiting proliferation and in the acquisition of senescent markers. Here, we identify miR-191 as an anti-proliferative and replicative senescence-associated miRNA in primary human keratinocytes. Its overexpression is sufficient per se to induce senescence, as evaluated by induction of several senescence-associated markers. We show that SATB1 and CDK6 3′UTRs are two miR-191 direct targets involved in this pathway. Cdk6 and Satb1 protein levels decrease during keratinocytes replicative senescence and their silencing by siRNA is able to induce a G1 block in cell cycle, accompanied by an increase in senescence-associated markers.
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Di Battista L, Stio F, Guarino S, Galani A, Maturo A, Dimko M, Mancini M, Gallo P. Squamous cell carcinoma of the renal pelvis with stones and inferior vena cava infiltration. Case report. G Chir 2012; 33:182-185. [PMID: 22709456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We report a rare case of a 50 year old man with renal squamous cell carcinoma (SCC) who first came to our attention with renal colic and fever not responding to antibiotic or analgesic treatment. He had a long history of kidney stones, but had not undergone any imaging in the last 5 years. Physical examination revealed tenderness and a palpable mass in the right flank and lumbar region. A whole body CT scan was performed, revealing an 11 cm mass in the right kidney infiltrating the inferior vena cava. There were areas of calcification within the mass and multiple stones within the renal pelvis. The tumor was considered unsuitable for resection according to radiological and clinical criteria. The mass was biopsied percutaneously under CT guidance and histological examination revealed squamous cell carcinoma of the renal pelvis. The patient was treated with neoadjuvant chemotherapy and embolization of the renal artery. He died one month after diagnosis. To our knowledge this is the second reported case in the world of renal SCC infiltrating the inferior vena cava and with kidney stones.
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