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Rozera G, Abbate I, Vlassi C, Giombini E, Lionetti R, Selleri M, Zaccaro P, Bartolini B, Corpolongo A, D'Offizi G, Baiocchini A, Del Nonno F, Ippolito G, Capobianchi MR. Quasispecies tropism and compartmentalization in gut and peripheral blood during early and chronic phases of HIV-1 infection: possible correlation with immune activation markers. Clin Microbiol Infect 2013; 20:O157-66. [PMID: 24134524 DOI: 10.1111/1469-0691.12367] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Revised: 06/20/2013] [Accepted: 08/03/2013] [Indexed: 11/29/2022]
Abstract
HIV quasispecies was analysed in plasma and proviral genomes hosted by duodenal mucosa and peripheral blood cells (PBMC) from patients with early or chronic infection, with respect to viral heterogeneity, tropism compartmentalization and extent of immune activation. Seventeen HIV-1-infected combined antiretroviral therapy naive patients were enrolled (11 early infection and six chronic infection). V3 and nef genomic regions were analysed by ultra-deep pyrosequencing. Sequences were used to infer co-receptor usage and to construct phylogenetic trees. As markers of immune activation, plasma sCD14 and soluble tumour necrosis factor receptor II (sTNFRII) levels were measured. Median diversity of HIV RNA was lower in patients with early infection versus chronic infection patients. Overall, direct correlation was observed between V3 diversity and X4 frequency; V3 diversity of HIV RNA was inversely correlated with CD4 T-cell count; median sCD14 and sTNFRII values were similar in early and chronic patients, but X4 frequency of HIV RNA was directly correlated with plasma sCD14. The proportion of patients harbouring X4 variants and median intra-patient X4 frequency of proviral genomes tended to be higher in chronic infection than early infection patients. More pronounced compartmentalization of proviral quasispecies in gut compared with PBMC samples was observed in patients with early infection compared with chronic patients. The loss of gut/PBMC compartmentalization in more advanced stages of HIV infection was confirmed by longitudinal observation. More studies are needed to understand the pathogenetic significance of early HIV quasispecies compartmentalization and progressive intermixing of viral variants in subsequent phases of the infection, as well as the role of immune activation in tropism switch.
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Affiliation(s)
- G Rozera
- National Institute for Infectious Diseases (INMI) "Lazzaro Spallanzani", Rome, Italy
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2
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Selleri M, Piralla A, Rozera G, Giombini E, Bartolini B, Abbate I, Campanini G, Rovida F, Dossena L, Capobianchi MR, Baldanti F. Detection of haemagglutinin D222 polymorphisms in influenza A(H1N1)pdm09-infected patients by ultra-deep pyrosequencing. Clin Microbiol Infect 2012; 19:668-73. [PMID: 22862843 DOI: 10.1111/j.1469-0691.2012.03984.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
This study was aimed at establishing the genetic heterogeneity of influenza virus haemagglutinin (HA) gene quasi-species and the polymorphisms at codon 222, by application of ultra-deep pyrosequencing (UDPS) to respiratory samples from patients hospitalized for influenza A(H1N1)pdm09 infection, presenting with severe or moderate-mild disease. HA diversity was significantly higher in samples collected from patients with severe manifestations than in those from patients with moderate-mild manifestations (p 0.02). D222 polymorphism was detected in 40.7% of patients by UDPS, and in only 7.1% by Sanger sequencing. D222E, D222G, D222N and D222A were observed in 37.0%, 11.1%, 7.4% and 3.7% of patients, respectively; 10.7% of samples harboured more than two variants. The relative frequency of each single variant showed a wide range of intrapatient variation. D222G/N/A were detected, as either minor or predominant variants, only in severe cases, whereas D222E was equally represented in severe and moderate-mild infections. Other amino acid variants were observed at different positions within the analysed HA fragment. Consistent with higher heterogeneity, non-D222 variants were more frequently detected in severe cases than in moderate-mild cases. In addition, seven non-D222 mutations carried by minority variants, not previously described, were observed.
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Affiliation(s)
- M Selleri
- Laboratory of Virology, National Institute for Infectious Diseases INMI IRCCS L. Spallanzani, Rome, Italy
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3
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Capobianchi MR, Sambri V, Castilletti C, Pierro AM, Rossini G, Gaibani P, Cavrini F, Selleri M, Meschi S, Lapa D, Di Caro A, Grossi P, De Cillia C, Venettoni S, Landini MP, Ippolito G, Nanni Costa A. Retrospective screening of solid organ donors in Italy, 2009, reveals unpredicted circulation of West Nile virus. ACTA ACUST UNITED AC 2010; 15. [PMID: 20807488 DOI: 10.2807/ese.15.34.19648-en] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Since the occurrence of West Nile virus (WNV) infection in humans in 2008 in Italy, concerns have been raised about the potential risks associated with solid organ transplantation (SOT). A nationwide retrospective survey showed that 1.2% of SOT donors in 2009 were WNV-seropositive and demonstrated that human WNV infection is distributed throughout several Italian regions. Transmission of WNV or other arboviruses through SOT is a possibility and risk assessment should be carried out before SOT to avoid infection through transplantation.
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Affiliation(s)
- M R Capobianchi
- National Institute for Infectious Diseases (INMI) L. Spallanzani , Rome, Italy.
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Nisii C, Carletti F, Castilletti C, Bordi L, Meschi S, Selleri M, Chiappini R, Travaglini D, Antonini M, Castorina S, Lauria FN, Narciso P, Gentile M, Martini L, Di Perri G, Audagnotto S, Biselli R, Lastilla M, Di Caro A, Capobianchi MR, Ippolito G. A case of dengue type 3 virus infection imported from Africa to Italy, October 2009. Euro Surveill 2010. [DOI: 10.2807/ese.15.07.19487-en] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
In October 2009, a traveller returning from Africa to Italy was hospitalised with symptoms suggestive of a haemorrhagic fever of unknown origin. The patient was immediately placed in a special biocontainment unit until laboratory investigations confirmed the infection to be caused by a dengue serotype 3 virus. This case reasserts the importance of returning travellers as sentinels of unknown outbreaks occurring in other countries, and highlights how the initial symptoms of dengue fever resemble those of other haemorrhagic fevers, hence the importance of prompt isolation of patients until a final diagnosis is reached.
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Affiliation(s)
- C Nisii
- WHO Collaborating Center for clinical care, diagnosis, response and training on Highly Infectious Diseases, National Institute for Infectious Diseases Lazzaro Spallanzani, Rome, Italy
| | - F Carletti
- WHO Collaborating Center for clinical care, diagnosis, response and training on Highly Infectious Diseases, National Institute for Infectious Diseases Lazzaro Spallanzani, Rome, Italy
| | - C Castilletti
- WHO Collaborating Center for clinical care, diagnosis, response and training on Highly Infectious Diseases, National Institute for Infectious Diseases Lazzaro Spallanzani, Rome, Italy
| | - L Bordi
- WHO Collaborating Center for clinical care, diagnosis, response and training on Highly Infectious Diseases, National Institute for Infectious Diseases Lazzaro Spallanzani, Rome, Italy
| | - S Meschi
- WHO Collaborating Center for clinical care, diagnosis, response and training on Highly Infectious Diseases, National Institute for Infectious Diseases Lazzaro Spallanzani, Rome, Italy
| | - M Selleri
- WHO Collaborating Center for clinical care, diagnosis, response and training on Highly Infectious Diseases, National Institute for Infectious Diseases Lazzaro Spallanzani, Rome, Italy
| | - R Chiappini
- WHO Collaborating Center for clinical care, diagnosis, response and training on Highly Infectious Diseases, National Institute for Infectious Diseases Lazzaro Spallanzani, Rome, Italy
| | - D Travaglini
- WHO Collaborating Center for clinical care, diagnosis, response and training on Highly Infectious Diseases, National Institute for Infectious Diseases Lazzaro Spallanzani, Rome, Italy
| | - M Antonini
- WHO Collaborating Center for clinical care, diagnosis, response and training on Highly Infectious Diseases, National Institute for Infectious Diseases Lazzaro Spallanzani, Rome, Italy
| | - S Castorina
- WHO Collaborating Center for clinical care, diagnosis, response and training on Highly Infectious Diseases, National Institute for Infectious Diseases Lazzaro Spallanzani, Rome, Italy
| | - F N Lauria
- WHO Collaborating Center for clinical care, diagnosis, response and training on Highly Infectious Diseases, National Institute for Infectious Diseases Lazzaro Spallanzani, Rome, Italy
| | - P Narciso
- WHO Collaborating Center for clinical care, diagnosis, response and training on Highly Infectious Diseases, National Institute for Infectious Diseases Lazzaro Spallanzani, Rome, Italy
| | - M Gentile
- WHO Collaborating Center for clinical care, diagnosis, response and training on Highly Infectious Diseases, National Institute for Infectious Diseases Lazzaro Spallanzani, Rome, Italy
| | - L Martini
- WHO Collaborating Center for clinical care, diagnosis, response and training on Highly Infectious Diseases, National Institute for Infectious Diseases Lazzaro Spallanzani, Rome, Italy
| | - G Di Perri
- Department of Infectious Diseases, ‘Amedeo di Savoia’ Hospital, Turin, Italy
| | - S Audagnotto
- Department of Infectious Diseases, ‘Amedeo di Savoia’ Hospital, Turin, Italy
| | - R Biselli
- Italian Air Force, Aeromedical Isolation Unit, Rome, Italy
| | - M Lastilla
- Italian Air Force, Aeromedical Isolation Unit, Rome, Italy
| | - A Di Caro
- WHO Collaborating Center for clinical care, diagnosis, response and training on Highly Infectious Diseases, National Institute for Infectious Diseases Lazzaro Spallanzani, Rome, Italy
| | - M R Capobianchi
- WHO Collaborating Center for clinical care, diagnosis, response and training on Highly Infectious Diseases, National Institute for Infectious Diseases Lazzaro Spallanzani, Rome, Italy
| | - G Ippolito
- WHO Collaborating Center for clinical care, diagnosis, response and training on Highly Infectious Diseases, National Institute for Infectious Diseases Lazzaro Spallanzani, Rome, Italy
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Nisii C, Carletti F, Castilletti C, Bordi L, Meschi S, Selleri M, Chiappini R, Travaglini D, Antonini M, Castorina S, Lauria FN, Narciso P, Gentile M, Martini L, Di Perri G, Audagnotto S, Biselli R, Lastilla M, Di Caro A, Capobianchi M, Ippolito G. A case of dengue type 3 virus infection imported from Africa to Italy, October 2009. Euro Surveill 2010; 15:19487. [PMID: 20184855] [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: 05/28/2023] Open
Abstract
In October 2009, a traveller returning from Africa to Italy was hospitalised with symptoms suggestive of a haemorrhagic fever of unknown origin. The patient was immediately placed in a special biocontainment unit until laboratory investigations confirmed the infection to be caused by a dengue serotype 3 virus. This case reasserts the importance of returning travellers as sentinels of unknown outbreaks occurring in other countries, and highlights how the initial symptoms of dengue fever resemble those of other haemorrhagic fevers, hence the importance of prompt isolation of patients until a final diagnosis is reached.
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Affiliation(s)
- C Nisii
- WHO Collaborating Center for clinical care, diagnosis, response and training on Highly Infectious Diseases, National Institute for Infectious Diseases Lazzaro Spallanzani, Rome, Italy.
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Minosse C, Selleri M, Zaniratti MS, Cappiello G, Spanò A, Schifano E, Lauria FN, Gualano G, Puro V, Campanini G, Gerna G, Capobianchi MR. Phylogenetic analysis of human coronavirus NL63 circulating in Italy. J Clin Virol 2008; 43:114-9. [PMID: 18602337 PMCID: PMC7108392 DOI: 10.1016/j.jcv.2008.04.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2008] [Revised: 04/03/2008] [Accepted: 04/21/2008] [Indexed: 11/20/2022]
Abstract
Background Five known human coronaviruses infect the human respiratory tract: HCoV-OC43, HCoV-229E, SARS-CoV, HCoV-NL63 and HCoV-HKU1. Objectives To evaluate the prevalence of HCoV-NL63 in hospitalized adult patients and to perform molecular characterization of Italian strains. Study Design HCoV-NL63 was sought by RT-PCR in 510 consecutive lower respiratory tract (LRT) samples, collected from 433 Central-Southern Italy patients over a 1-year period. Phylogenetic analysis was performed by partial sequencing of S and ORF1a. Additional S sequences from Northern Italy were included in the phylogenetic trees. Results HCoV-NL63 was detected in 10 patients (2.0%) with symptomatic respiratory diseases, mainly during winter. Phylogenetic analysis indicated a certain degree of heterogeneity in Italian isolates. The ORF1a gene clustering in phylogenetic trees did not match with that of the S gene. Conclusions As observed by others, HCoV-NL63 is often associated with another virus. Phylogenetic characterization of HCoV-NL63 circulating in Italy indicates that this virus circulates as a mixture of variant strains, as observed in other countries.
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Affiliation(s)
- C Minosse
- Laboratory of Virology, National Institute for Infectious Diseases L. Spallanzani, Via Portuense 292, 00149 Rome, Italy
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Riva E, Serraino D, Pierangeli A, Bambacioni F, Zaniratti S, Minosse C, Selleri M, Bucci M, Scagnolari C, Degener AM, Capobianchi MR, Antonelli G, Dianzani F. Markers of human papillomavirus infection and their correlation with cervical dysplasia in human immunodeficiency virus-positive women. Clin Microbiol Infect 2007; 13:94-7. [PMID: 17184295 DOI: 10.1111/j.1469-0691.2006.01568.x] [Citation(s) in RCA: 9] [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: 11/29/2022]
Abstract
Human papillomavirus (HPV) genotypes and HPV DNA load were analysed in cervical smears from 76 human immunodeficiency virus (HIV)-positive and 54 HIV-negative women. The prevalence of genotypes was similar for all women, with the exception of HPV62, which was over-represented in HIV-positive samples. HIV-positive women showed a higher prevalence of multiple genotypes that correlated neither with CD4(+) T-cell counts nor with cervical dysplasia. No significant differences were observed in terms of total or single-type HPV DNA load. The HPV DNA load in both HIV-positive and HIV-negative women was significantly higher in squamous intra-epithelial lesions than in negative Pap smears.
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Affiliation(s)
- E Riva
- Virology Section, University Campus Bio-Medico, Spallanzani Hospital, Rome, Italy
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8
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Selleri M, Zaniratti M, Orchi N, Corpolongo A, Zaccaro P, Ippolito G, Capobianchi M, Girardi E. P1916 The evolution of the avidity of HIV–1–specific antibodies is prevented by early treatment started during primary HIV–1 infection. Int J Antimicrob Agents 2007. [DOI: 10.1016/s0924-8579(07)71755-7] [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: 10/23/2022]
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9
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Minosse C, Selleri M, Zaniratti M, Cappiello G, Longo R, Schifano E, Cava M, Petrosillo N, Gualano G, Spanò A, Lauria F, Puro V, Capobianchi M. PREVALENZA DI AGENTI RESPIRATORI IN CAMPIONI DEL TRATTO RESPIRATORIO INFERIORE DI PAZIENTI OSPEDALIZZATI. Microbiol Med 2006. [DOI: 10.4081/mm.2006.3241] [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: 11/23/2022] Open
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10
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Selleri M, Zaniratti M, Orchi N, Corpolongo A, Zaccaro P, Ippolito G, Capobianchi M, Girardi E. IL TRATTAMENTO PRECOCE NELLE INFEZIONI ACUTE DA HIV-1 INCIDE SULLA MATURAZIONE DELLA RISPOSTA UMORALE ANTI-HIV. Microbiol Med 2006. [DOI: 10.4081/mm.2006.3253] [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: 11/23/2022] Open
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Selleri M, Minosse C, Zaniratti M, Cappiello G, Lauria F, Longo R, Roselli P, Antonelli S, Schifano E, Tana M, Visca M, Cava M, Spanò A, De Mori P, Gualano G, Capobianchi M, Puro V. RILEVAZIONE DI VIRUS RESPIRATORI IN PAZIENTI CON PATOLOGIE DEL TRATTO RESPIRATORIO INFERIORE. Microbiol Med 2005. [DOI: 10.4081/mm.2005.3602] [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: 11/22/2022] Open
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Minosse C, Calcaterra S, Abbate I, Selleri M, Zaniratti M, Pavia C, Pisani G, Capobianchi M. POSSIBILE COMPARTIMENTALIZZAZIONE DELLA REPLICAZIONE DI HCV IN SITI EXTRAEPATICI:ANALISI DELLA QUASI SPECIE DI HCV NELL’AREA GENITALE FEMMINILE. Microbiol Med 2005. [DOI: 10.4081/mm.2005.3569] [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: 11/23/2022] Open
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