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Farinazzo E, Ponis G, Zelin E, Errichetti E, Stinco G, Pinzani C, Gambelli A, De Manzini N, Toffoli L, Moret A, Agozzino M, Conforti C, Di Meo N, Schincariol P, Zalaudek I. Cutaneous adverse reactions after m-RNA COVID-19 vaccine: early reports from Northeast Italy. J Eur Acad Dermatol Venereol 2021; 35:e548-e551. [PMID: 34021625 PMCID: PMC8242497 DOI: 10.1111/jdv.17343] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- E Farinazzo
- Dermatology Clinic, Maggiore Hospital, University of Trieste, Trieste, Italy
| | - G Ponis
- Hospital Pharmacy Unit, Cattinara Hospital, Trieste, Italy
| | - E Zelin
- Dermatology Clinic, Maggiore Hospital, University of Trieste, Trieste, Italy
| | - E Errichetti
- Department of Medical Area, Institute of Dermatology, University of Udine, Udine, Italy
| | - G Stinco
- Department of Medical Area, Institute of Dermatology, University of Udine, Udine, Italy
| | - C Pinzani
- Dermatology and Venereology, Private Practice, Udine, Italy
| | - A Gambelli
- Division of Molecular Oncology, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, National Cancer Institute, Aviano, Italy
| | - N De Manzini
- UCO Chirurgia Generale, Cattinara Hospital, University of Trieste, Trieste, Italy
| | - L Toffoli
- Dermatology Clinic, Maggiore Hospital, University of Trieste, Trieste, Italy
| | - A Moret
- Dermatology Clinic, Maggiore Hospital, University of Trieste, Trieste, Italy
| | - M Agozzino
- Dermatology Clinic, Maggiore Hospital, University of Trieste, Trieste, Italy
| | - C Conforti
- Dermatology Clinic, Maggiore Hospital, University of Trieste, Trieste, Italy
| | - N Di Meo
- Dermatology Clinic, Maggiore Hospital, University of Trieste, Trieste, Italy
| | - P Schincariol
- Hospital Pharmacy Unit, Cattinara Hospital, Trieste, Italy
| | - I Zalaudek
- Dermatology Clinic, Maggiore Hospital, University of Trieste, Trieste, Italy
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Zelin E, Di Meo N, Maronese CA, Zalaudek I. Pyemotes ventricosus dermatitis: 'comet sign'. Clin Exp Dermatol 2021; 46:980-983. [PMID: 33638204 DOI: 10.1111/ced.14563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 01/14/2021] [Accepted: 01/18/2021] [Indexed: 11/27/2022]
Affiliation(s)
- E Zelin
- Dermatology Clinic, Maggiore Hospital, University of Trieste, Trieste, Italy
| | - N Di Meo
- Dermatology Clinic, Maggiore Hospital, University of Trieste, Trieste, Italy
| | - C A Maronese
- Dermatology Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - I Zalaudek
- Dermatology Clinic, Maggiore Hospital, University of Trieste, Trieste, Italy
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Torgeman A, Ben-Aroya Z, Grunspan A, Zelin E, Butovsky E, Hallak M, Löchelt M, Flügel RM, Livneh E, Wolfson M, Kedar I, Aboud M. Activation of HTLV-I long terminal repeat by stress-inducing agents and protection of HTLV-I-infected T-cells from apoptosis by the viral tax protein. Exp Cell Res 2001; 271:169-79. [PMID: 11697893 DOI: 10.1006/excr.2001.5363] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.3] [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: 12/23/2022]
Abstract
HTLV-I is etiologically implicated with tropical spastic paraparesis/HTLV-I associated myelopathy, adult T-cell leukemia and certain other diseases. However, after infection the virus enters into a dormant state, whereas the characteristics of the HTLV-I related diseases indicate that their genesis requires activation of the dormant virus by a Tax-independent mechanism. In the present study we demonstrate that a variety of stress-inducing agents (TPA, cisplatin, etoposide, taxol, and 3-methylcholanthrene) are capable of Tax-independent activation of HTLV-I LTR and that this activation is detected mainly in cells that are undergoing through the apoptotic process. Furthermore, it is demonstrated that both apoptosis induction and HTLV-I LTR activation are inhibited by Bcl-2 and by PKC, indicating that these two processes are mechanistically cross-linked. In addition, using an HTLV-I producing human T-cell line which permanently express the negatively transdominant tax mutant, Delta58tax, under the Tet-Off control system, we prove that the virally encoded Tax protein protects the host cells from apoptosis. Together, these data suggest that activation of the dormant virus in the carriers' infected T-cells by certain stress-inducing conditions and protecting these cells from the consequent apoptotic death by the viral Tax protein emerging after this activation, might be the basis for switching the virus from latency to a pathogenic phase.
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Affiliation(s)
- A Torgeman
- Department of Microbiology and Immunology, Ben Gurion University of the Negev, Beer Sheva, 84105, Israel
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Torgeman A, Mor-Vaknin N, Zelin E, Ben-Aroya Z, Löchelt M, Flügel RM, Aboud M. Sp1-p53 heterocomplex mediates activation of HTLV-I long terminal repeat by 12-O-tetradecanoylphorbol-13-acetate that is antagonized by protein kinase C. Virology 2001; 281:10-20. [PMID: 11222091 DOI: 10.1006/viro.2000.0779] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We have previously demonstrated that 12-O-tetradecanoylphorbol-13-acetate (TPA) activates human T-cell leukemia virus type-I long terminal repeat (LTR) in Jurkat cells by a protein kinase C (PKC)-independent mechanism involving a posttranslational activation of Sp1 binding to an Sp1 site located within the Ets responsive region-1 (ERR-1). By employing the PKC inhibitor, bisindolylmaleimide I and cotransfecting the reporter LTR construct with a vector expressing PKC-alpha, we demonstrated, in the present study, that this effect of TPA was not only independent of, but actually antagonized by, PKC. Electrophoretic mobility shift assays together with antibody-mediated supershift and immuno-coprecipitation analyses, revealed that the posttranslational activation of Sp1 was exerted by inducing the formation of Sp1-p53 heterocomplex capable of binding to the Sp1 site in ERR-1. Furthermore, we demonstrated that Jurkat cells contain both wild-type (w.t.) and mutant forms of p53 and we detected both of them in this complex at variable combinations; some molecules of the complex contained either the w.t. or the mutant p53 separately, whereas others contained the two of them together. Finally, we showed that the Sp1-p53 complexes could bind also to an Sp1 site present in the promoter of another gene such as the cyclin-dependent kinase inhibitor p21(WAF-1), but not to consensus recognition sequences of the w.t. p53. Therefore, we speculate that there might be several other PKC-independent biological effects of TPA which result from interaction of such Sp1-p53 complexes with Sp1 recognition sites residing in the promoters of a wide variety of cellular and viral genes.
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Affiliation(s)
- A Torgeman
- Department of Microbiology and Immunology, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
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