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Lucci V, De Marino E, Tagliaferri D, Amente S, Pollice A, Calabrò V, Vivo M, Falco G, Angrisano T. Identification of Cdk8 and Cdkn2d as new Prame-Target Genes in 2C-Like Embryonic Stem Cells. Genes (Basel) 2022; 13:genes13101745. [PMID: 36292630 PMCID: PMC9601988 DOI: 10.3390/genes13101745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/22/2022] [Accepted: 09/23/2022] [Indexed: 11/24/2022] Open
Abstract
Embryonic stem cells (ESCs) present a characteristic pluripotency heterogeneity correspondent to specific metastates. We recently demonstrated that retinoic acid (RA) induces an increase in a specific 2C-like metastate marked by target genes specific to the two-cell embryo stage in preimplantation. Prame (Preferentially expressed antigen in melanoma) is one of the principal actors of the pluripotency stage with a specific role in RA responsiveness. Additionally, PRAME is overexpressed in a variety of cancers, but its molecular functions are poorly understood. To further investigate Prame’s downstream targets, we used a chromatin immunoprecipitation sequencing (ChIP-seq) assay in RA-enriched 2C-like metastates and identified two specific target genes, Cdk8 and Cdkn2d, bound by Prame. These two targets, involved in cancer dedifferentiation and pluripotency, have been further validated in RA-resistant ESCs. Here, we observed for the first time that Prame controls the Cdk8 and Cdkn2d genes in ESCs after RA treatment, shedding light on the regulatory network behind the establishment of naïve pluripotency.
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Affiliation(s)
- Valeria Lucci
- Department of Biology, University of Naples “Federico II”, 80147 Naples, Italy
- IEOS-CNR, Institute of Experimental Endocrinology and Oncology “G. Salvatore”—National Research Council, 80131 Naples, Italy
- Correspondence: (V.L.); (T.A.); Tel.: +39-081-679721 (T.A.)
| | - Elena De Marino
- Department of Biology, University of Naples “Federico II”, 80147 Naples, Italy
| | - Daniela Tagliaferri
- Biogem Scarl, Istituto di Ricerche Genetiche “Gaetano Salvatore”, 83031 Ariano Irpino, Italy
| | - Stefano Amente
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, 80131 Naples, Italy
| | - Alessandra Pollice
- Department of Biology, University of Naples “Federico II”, 80147 Naples, Italy
| | - Viola Calabrò
- Department of Biology, University of Naples “Federico II”, 80147 Naples, Italy
| | - Maria Vivo
- Department of Chemistry and Biology, University of Salerno, 84084 Fisciano, Italy
| | - Geppino Falco
- Department of Biology, University of Naples “Federico II”, 80147 Naples, Italy
- IEOS-CNR, Institute of Experimental Endocrinology and Oncology “G. Salvatore”—National Research Council, 80131 Naples, Italy
- Biogem Scarl, Istituto di Ricerche Genetiche “Gaetano Salvatore”, 83031 Ariano Irpino, Italy
| | - Tiziana Angrisano
- Department of Biology, University of Naples “Federico II”, 80147 Naples, Italy
- Correspondence: (V.L.); (T.A.); Tel.: +39-081-679721 (T.A.)
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2
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Tagliaferri D, Mazzone P, Noviello TMR, Addeo M, Angrisano T, Del Vecchio L, Visconte F, Ruggieri V, Russi S, Caivano A, Cantone I, De Felice M, Ceccarelli M, Cerulo L, Falco G. Retinoic Acid Induces Embryonic Stem Cells (ESCs) Transition to 2 Cell-Like State Through a Coordinated Expression of Dux and Duxbl1. Front Cell Dev Biol 2020; 7:385. [PMID: 32010697 PMCID: PMC6979039 DOI: 10.3389/fcell.2019.00385] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 12/19/2019] [Indexed: 01/27/2023] Open
Abstract
Embryonic stem cells (ESCs) are derived from inner cell mass (ICM) of the blastocyst. In serum/LIF culture condition, they show variable expression of pluripotency genes that mark cell fluctuation between pluripotency and differentiation metastate. The ESCs subpopulation marked by zygotic genome activation gene (ZGA) signature, including Zscan4, retains a wider differentiation potency than epiblast-derived ESCs. We have recently shown that retinoic acid (RA) significantly enhances Zscan4 cell population. However, it remains unexplored how RA initiates the ESCs to 2-cell like reprogramming. Here we found that RA is decisive for ESCs to 2C-like cell transition, and reconstructed the gene network surrounding Zscan4. We revealed that RA regulates 2C-like population co-activating Dux and Duxbl1. We provided novel evidence that RA dependent ESCs to 2C-like cell transition is regulated by Dux, and antagonized by Duxbl1. Our suggested mechanism could shed light on the role of RA on ESC reprogramming.
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Affiliation(s)
- Daniela Tagliaferri
- Biogem Scarl, Istituto di Ricerche Genetiche "Gaetano Salvatore," Ariano Irpino, Italy
| | - Pellegrino Mazzone
- Biogem Scarl, Istituto di Ricerche Genetiche "Gaetano Salvatore," Ariano Irpino, Italy
| | - Teresa M R Noviello
- Biogem Scarl, Istituto di Ricerche Genetiche "Gaetano Salvatore," Ariano Irpino, Italy.,Department of Science and Technology, University of Sannio, Benevento, Italy
| | - Martina Addeo
- Biogem Scarl, Istituto di Ricerche Genetiche "Gaetano Salvatore," Ariano Irpino, Italy.,Department of Biology, University of Naples Federico II, Naples, Italy
| | - Tiziana Angrisano
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Luigi Del Vecchio
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples Federico II, Naples, Italy.,CEINGE Biotecnologie Avanzate s.c.ar.l., Naples, Italy
| | | | - Vitalba Ruggieri
- IRCCS-CROB, Referral Cancer Center of Basilicata, Rionero in Vulture, Italy
| | - Sabino Russi
- IRCCS-CROB, Referral Cancer Center of Basilicata, Rionero in Vulture, Italy
| | - Antonella Caivano
- IRCCS-CROB, Referral Cancer Center of Basilicata, Rionero in Vulture, Italy
| | - Irene Cantone
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples Federico II, Naples, Italy
| | - Mario De Felice
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples Federico II, Naples, Italy.,Institute of Experimental Endocrinology and Oncology (IEOS), CNR, Naples, Italy
| | - Michele Ceccarelli
- Biogem Scarl, Istituto di Ricerche Genetiche "Gaetano Salvatore," Ariano Irpino, Italy.,Department of Science and Technology, University of Sannio, Benevento, Italy
| | - Luigi Cerulo
- Biogem Scarl, Istituto di Ricerche Genetiche "Gaetano Salvatore," Ariano Irpino, Italy.,Department of Science and Technology, University of Sannio, Benevento, Italy
| | - Geppino Falco
- Biogem Scarl, Istituto di Ricerche Genetiche "Gaetano Salvatore," Ariano Irpino, Italy.,Department of Science and Technology, University of Sannio, Benevento, Italy.,IRCCS-CROB, Referral Cancer Center of Basilicata, Rionero in Vulture, Italy.,Institute of Experimental Endocrinology and Oncology (IEOS), CNR, Naples, Italy
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3
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Trino S, Lamorte D, Caivano A, Laurenzana I, Tagliaferri D, Falco G, Del Vecchio L, Musto P, De Luca L. MicroRNAs as New Biomarkers for Diagnosis and Prognosis, and as Potential Therapeutic Targets in Acute Myeloid Leukemia. Int J Mol Sci 2018; 19:ijms19020460. [PMID: 29401684 PMCID: PMC5855682 DOI: 10.3390/ijms19020460] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 01/12/2018] [Accepted: 01/12/2018] [Indexed: 02/07/2023] Open
Abstract
Acute myeloid leukemias (AML) are clonal disorders of hematopoietic progenitor cells which are characterized by relevant heterogeneity in terms of phenotypic, genotypic, and clinical features. Among the genetic aberrations that control disease development there are microRNAs (miRNAs). miRNAs are small non-coding RNAs that regulate, at post-transcriptional level, translation and stability of mRNAs. It is now established that deregulated miRNA expression is a prominent feature in AML. Functional studies have shown that miRNAs play an important role in AML pathogenesis and miRNA expression signatures are associated with chemotherapy response and clinical outcome. In this review we summarized miRNA signature in AML with different cytogenetic, molecular and clinical characteristics. Moreover, we reviewed the miRNA regulatory network in AML pathogenesis and we discussed the potential use of cellular and circulating miRNAs as biomarkers for diagnosis and prognosis and as therapeutic targets.
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MESH Headings
- Animals
- Antagomirs/genetics
- Antagomirs/metabolism
- Antagomirs/therapeutic use
- Biomarkers, Tumor/agonists
- Biomarkers, Tumor/antagonists & inhibitors
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Chromosome Aberrations
- Extracellular Vesicles/metabolism
- Extracellular Vesicles/pathology
- Gene Expression Regulation, Leukemic
- Humans
- Leukemia, Myeloid, Acute/diagnosis
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/metabolism
- Leukemia, Myeloid, Acute/therapy
- Mice
- MicroRNAs/agonists
- MicroRNAs/antagonists & inhibitors
- MicroRNAs/genetics
- MicroRNAs/metabolism
- Molecular Targeted Therapy
- Oligoribonucleotides/genetics
- Oligoribonucleotides/metabolism
- Oligoribonucleotides/therapeutic use
- Oncogene Proteins, Fusion/antagonists & inhibitors
- Oncogene Proteins, Fusion/genetics
- Oncogene Proteins, Fusion/metabolism
- Prognosis
- Signal Transduction
- Xenograft Model Antitumor Assays
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Affiliation(s)
- Stefania Trino
- Laboratory of Preclinical and Translational Research, IRCCS-Referral Cancer Center of Basilicata (CROB), 85028 Rionero in Vulture, Italy.
| | - Daniela Lamorte
- Laboratory of Preclinical and Translational Research, IRCCS-Referral Cancer Center of Basilicata (CROB), 85028 Rionero in Vulture, Italy.
| | - Antonella Caivano
- Laboratory of Preclinical and Translational Research, IRCCS-Referral Cancer Center of Basilicata (CROB), 85028 Rionero in Vulture, Italy.
| | - Ilaria Laurenzana
- Laboratory of Preclinical and Translational Research, IRCCS-Referral Cancer Center of Basilicata (CROB), 85028 Rionero in Vulture, Italy.
| | - Daniela Tagliaferri
- Biogem Scarl, Istituto di Ricerche Genetiche 'Gaetano Salvatore', 83031 Ariano Irpino, Italy.
| | - Geppino Falco
- Biogem Scarl, Istituto di Ricerche Genetiche 'Gaetano Salvatore', 83031 Ariano Irpino, Italy.
- Department of Biology, University of Naples Federico II, 80147 Naples, Italy.
| | - Luigi Del Vecchio
- CEINGE Biotecnologie Avanzate s.c.a r.l., 80147 Naples, Italy.
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples Federico II, 80138 Naples, Italy.
| | - Pellegrino Musto
- Scientific Direction, IRCCS-Referral Cancer Center of Basilicata (CROB), 85028 Rionero in Vulture, Potenza, Italy.
| | - Luciana De Luca
- Laboratory of Preclinical and Translational Research, IRCCS-Referral Cancer Center of Basilicata (CROB), 85028 Rionero in Vulture, Italy.
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Tagliaferri D, De Angelis MT, Russo NA, Marotta M, Ceccarelli M, Del Vecchio L, De Felice M, Falco G. Retinoic Acid Specifically Enhances Embryonic Stem Cell Metastate Marked by Zscan4. PLoS One 2016; 11:e0147683. [PMID: 26840068 PMCID: PMC4740454 DOI: 10.1371/journal.pone.0147683] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 01/07/2016] [Indexed: 11/18/2022] Open
Abstract
Pluripotency confers Embryonic Stem Cells (ESCs) the ability to differentiate in ectoderm, endoderm, and mesoderm derivatives, producing the majority of cell types. Although the majority of ESCs divide without losing pluripotency, it has become evident that ESCs culture consists of multiple cell populations with different degrees of potency that are spontaneously induced in regular ESC culture conditions. Zscan4, a key pluripotency factor, marks ESC subpopulation that is referred to as high-level of pluripotency metastate. Here, we report that in ESC cultures treated with retinoic acid (RA), Zscan4 ESCs metastate is strongly enhanced. In particular, we found that induction of Zscan4 metastate is mediated via RA receptors (RAR-alpha, RAR-beta, and RAR-gamma), and it is dependent on phosphoinositide-3-kinase (PI3K) signaling. Remarkably, Zscan4 metastate induced by RA lacks canonical pluripotency genes Oct3/4 and Nanog but retained both self-renewal and pluripotency capabilities. Finally we demonstrated that the conditional ablation of Zscan4 subpopulation is dispensable for both endoderm and mesoderm but is required for ectoderm lineage. In conclusion, our research provides new insights about the role of RA signaling during ESCs high pluripotency metastate fluctuation.
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Affiliation(s)
- Daniela Tagliaferri
- Biogem, Istituto di Ricerche Genetiche Gaetano Salvatore Biogem scarl, Ariano Irpino, Italy
| | | | - Nicola Antonino Russo
- Biogem, Istituto di Ricerche Genetiche Gaetano Salvatore Biogem scarl, Ariano Irpino, Italy
| | - Maria Marotta
- Biogem, Istituto di Ricerche Genetiche Gaetano Salvatore Biogem scarl, Ariano Irpino, Italy
| | | | - Luigi Del Vecchio
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples “Federico II”, Naples, Italy
| | - Mario De Felice
- Biogem, Istituto di Ricerche Genetiche Gaetano Salvatore Biogem scarl, Ariano Irpino, Italy
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples “Federico II”, Naples, Italy
| | - Geppino Falco
- Biogem, Istituto di Ricerche Genetiche Gaetano Salvatore Biogem scarl, Ariano Irpino, Italy
- Department of Science, Università degli Studi del Sannio, Benevento, Italy
- Department of Biology, University of Naples “Federico II”, Naples, Italy
- * E-mail:
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5
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Cerulo L, Tagliaferri D, Marotta P, Zoppoli P, Russo F, Mazio C, DeFelice M, Ceccarelli M, Falco G. Identification of a novel gene signature of ES cells self-renewal fluctuation through system-wide analysis. PLoS One 2014; 9:e83235. [PMID: 24392082 PMCID: PMC3879232 DOI: 10.1371/journal.pone.0083235] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [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: 06/28/2013] [Accepted: 10/31/2013] [Indexed: 11/18/2022] Open
Abstract
Embryonic Stem cells (ESCs) can be differentiated into ectoderm, endoderm, and mesoderm derivatives, producing the majority of cell types. In regular culture conditions, ESCs' self-renewal is maintained through molecules that inhibit spontaneous differentiation enabling long-term cellular expansion. This undifferentiating condition is characterized by multiple metastable states that fluctuate between self-renewal and differentiation balance. Here, we aim to characterize the high-pluripotent ESC metastate marked by the expression of Zscan4 through a supervised machine learning framework based on an ensemble of support vector machine (SVM) classifiers. Our study revealed a leukaemia inhibitor factor (Lif) dependent not-canonical pluripotency signature (AF067063, BC061212, Dub1, Eif1a, Gm12794, Gm13871, Gm4340, Gm4850, Tcstv1/3, and Zfp352), that specifically marks Zscan4 ESCs' fluctuation. This novel ESC metastate is enhanced by high-pluripotency culture conditions obtained through Extracellular signal Regulated-Kinase (ERK) and Glycogen synthase kinase-3 (Gsk-3) signaling inhibition (2i). Significantly, we reported that the conditional ablation of the novel ESC metastate marked by the expression of Gm12794 is required for ESCs self-renewal maintenance. In conclusion, we extend the comprehension of ESCs biology through the identification of a novel molecular signature associated to pluripotency programming.
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Affiliation(s)
- Luigi Cerulo
- Department of Stem Cell and Development, Istituto di Ricerche Genetiche Gaetano Salvatore Biogem scarl, Ariano Irpino, Italy
- Department of Science, Università degli Studi del Sannio, Benevento, Italy
| | - Daniela Tagliaferri
- Department of Stem Cell and Development, Istituto di Ricerche Genetiche Gaetano Salvatore Biogem scarl, Ariano Irpino, Italy
- Department of Science, Università degli Studi del Sannio, Benevento, Italy
| | - Pina Marotta
- Department of Stem Cell and Development, Istituto di Ricerche Genetiche Gaetano Salvatore Biogem scarl, Ariano Irpino, Italy
| | - Pietro Zoppoli
- Department of Stem Cell and Development, Istituto di Ricerche Genetiche Gaetano Salvatore Biogem scarl, Ariano Irpino, Italy
| | - Filomena Russo
- Department of Stem Cell and Development, Istituto di Ricerche Genetiche Gaetano Salvatore Biogem scarl, Ariano Irpino, Italy
| | - Claudia Mazio
- Department of Stem Cell and Development, Istituto di Ricerche Genetiche Gaetano Salvatore Biogem scarl, Ariano Irpino, Italy
| | - Mario DeFelice
- Department of Stem Cell and Development, Istituto di Ricerche Genetiche Gaetano Salvatore Biogem scarl, Ariano Irpino, Italy
- Department of Medicina Molecolare e Biotecnologie mediche, Università di Napoli Federico II, Naples, Italy
| | - Michele Ceccarelli
- Department of Stem Cell and Development, Istituto di Ricerche Genetiche Gaetano Salvatore Biogem scarl, Ariano Irpino, Italy
- Department of Science, Università degli Studi del Sannio, Benevento, Italy
- * E-mail: (MC); (GF)
| | - Geppino Falco
- Department of Stem Cell and Development, Istituto di Ricerche Genetiche Gaetano Salvatore Biogem scarl, Ariano Irpino, Italy
- Department of Science, Università degli Studi del Sannio, Benevento, Italy
- * E-mail: (MC); (GF)
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6
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Paduano V, Tagliaferri D, Falco G, Ceccarelli M. Automated identification and location analysis of marked stem cells colonies in optical microscopy images. PLoS One 2013; 8:e80776. [PMID: 24349016 PMCID: PMC3857180 DOI: 10.1371/journal.pone.0080776] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Accepted: 10/07/2013] [Indexed: 11/19/2022] Open
Abstract
Embryonic stem cells (ESCs) are characterized by two remarkable peculiarities: the capacity to propagate as undifferentiated cells (self-renewal) and the ability to differentiate in ectoderm, endoderm, and mesoderm derivatives (pluripotency). Although the majority of ESCs divide without losing the pluripotency, it has become evident that ESC cultures consists of multiple cell populations highlighted by the expression of early germ lineage markers during spontaneous differentiation. Hence, the identification and characterization of ESCs subpopulations represents an efficient approach to improve the comprehension of correlation between gene expression and cell specification status. To study markers of ESCs heterogeneity, we developed an analysis pipeline which can automatically process images of stem cell colonies in optical microscopy. The question we try to address is to find out the statistically significant preferred locations of the marked cells. We tested our algorithm on a set of images of stem cell colonies to analyze the expression pattern of the Zscan4 gene, which was an elite candidate gene to be studied because it is specifically expressed in subpopulation of ESCs. To validate the proposed method we analyzed the behavior of control genes whose pattern had been associated to biological status such as differentiation (EndoA), pluripotency (Pou5f1), and pluripotency fluctuation (Nanog). We found that Zscan4 is not uniformly expressed inside a stem cell colony, and that it tends to be expressed towards the center of the colony, moreover cells expressing Zscan4 cluster each other. This is of significant importance because it allows us to hypothesize a biological status where the cells expressing Zscan4 are preferably associated to the inner of colonies suggesting pluripotent cell status features, and the clustering between themselves suggests either a colony paracrine effect or an early phase of cell specification through proliferation. Also, the analysis on the control genes showed that they behave as expected.
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Affiliation(s)
- Vincenzo Paduano
- Bioinformatics Lab, Genetic Research Institute “G. Salvatore” (IRGS) c/o BioGeM s.c.a r.l., Ariano Irpino, Avellino, Italy
- Department of Science and Technologies, University of Sannio, via Port'Arsa, Benevento, Benevento, Italy
| | - Daniela Tagliaferri
- Stem Cell Research Lab, Genetic Research Institute “G. Salvatore” (IRGS) c/o BioGeM s.c.a r.l., c.da Camporeale, Ariano Irpino, Avellino, Italy
| | - Geppino Falco
- Stem Cell Research Lab, Genetic Research Institute “G. Salvatore” (IRGS) c/o BioGeM s.c.a r.l., c.da Camporeale, Ariano Irpino, Avellino, Italy
- Department of Science and Technologies, University of Sannio, via Port'Arsa, Benevento, Benevento, Italy
- * E-mail: (MC); (GF)
| | - Michele Ceccarelli
- Bioinformatics Lab, Genetic Research Institute “G. Salvatore” (IRGS) c/o BioGeM s.c.a r.l., Ariano Irpino, Avellino, Italy
- Department of Science and Technologies, University of Sannio, via Port'Arsa, Benevento, Benevento, Italy
- * E-mail: (MC); (GF)
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7
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Cardone G, Malventi M, Roffi M, Toscano S, Atzeni G, Marino G, Simi G, Tagliaferri D. [Assessment of primary renal lymphoma with computerized tomography]. Radiol Med 1995; 90:75-9. [PMID: 7569100] [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
Renal involvement during lymphoma can be extrinsic, i.e., renal compression or displacement due to lymph node masses, or intrinsic, i.e., parenchymal involvement secondary to blood or lymphatic spread, or primary, as initial neoplastic site. Primary renal lymphoma is very rare (3% of all renal lymphomas) for the absence of lymphatic tissue in the kidney. The disease might be due to parapyelic lymph nodes or to blood spreading from an unknown site. In our study we reviewed the CT findings of five cases of primary non-Hodgkin's renal lymphoma with surgical or histologic confirmation. Renal alterations due to lymphomatous involvement were classified according to macroscopic pathologic findings: type I (single nodular disease, 2 patients), type II (multinodular disease, 1 patient), and type III (infiltrating disease with retroperitoneal involvement, 2 patients). In the two patients with single nodular involvement (type I), CT showed a solid, hypodense and clear-cut nodule. In the only patient with multinodular disease (type II), renal tissue was replaced by multiple hypodense nodular masses, which were partially confluent. In the two infiltrating forms with retroperitoneal involvement (type III), renal structure was diffusely disorganized, with thickening of soft tissues and perirenal fasciae, peripyelic infiltration and, in one case, urinary tract obstruction. To conclude, CT always allowed the accurate assessment of the presence, site and size of renal lesions and of perirenal and urinary involvement. However, CT findings were completely aspecific, not allowing an unquestionable differential diagnosis with other conditions, e.g., hypernephroma, transitional cell carcinoma, metastatic lesions or chronic inflammations. Therefore, a biopsy specimen is necessary to make an unquestionable diagnosis.
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Affiliation(s)
- G Cardone
- Unità Operativa Radiodiagnostica, USL n. 13, Spedali Riuniti, Livorno LI
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8
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Martellosio V, Tagliaferri D. [Complicated Meckel's diverticulum: a clinical case and review of the literature]. Chir Ital 1990; 42:208-13. [PMID: 2132035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- V Martellosio
- Divisione di Chirurgia Generale, Ospedale Civile Castel San Giovanni, Piacenza
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9
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Coviello G, Collodoro A, Mensini S, Tagliaferri D, Bravi A. Unilateral absence of a pulmonary artery. Rays 1985; 10:41-2. [PMID: 3843667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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10
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Terrosi Vagnoli P, Tagliaferri D, Bianciardi A. [Hemorrhagic adrenal cavernous angioma. Radiologic diagnosis]. Radiol Med 1979; 65:750-2. [PMID: 554195] [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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