1
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Pinnetti C, Vergori A, Agrati C, Castilletti C, Campioni P, Gagliardini R, Mondi A, Notari S, Amendola A, Cicalini S, Baldini F, Capobianchi MR, Antinori A. SARS-CoV-2 infection does not induce HIV viral escape in the central nervous system: A case series. Int J Infect Dis 2020; 101:38-41. [PMID: 32950740 PMCID: PMC7497739 DOI: 10.1016/j.ijid.2020.09.040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 07/02/2020] [Revised: 09/04/2020] [Accepted: 09/13/2020] [Indexed: 12/27/2022] Open
Abstract
We report two cases of HIV positive patients with SARS-CoV-2 infection and a recent diagnosis of opportunistic infections of central nervous system (CNS). We investigated the potential impact of coinfection with SARS-CoV-2 on HIV replication in CNS.
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Affiliation(s)
- C Pinnetti
- HIV/AIDS Unit, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy.
| | - A Vergori
- HIV/AIDS Unit, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy.
| | - C Agrati
- Cellular Immunology and Pharmacology Laboratory, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - C Castilletti
- Laboratory of Virology, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - P Campioni
- Radiology Unit, National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - R Gagliardini
- HIV/AIDS Unit, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - A Mondi
- HIV/AIDS Unit, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - S Notari
- Cellular Immunology and Pharmacology Laboratory, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - A Amendola
- Laboratory of Virology, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - S Cicalini
- HIV/AIDS Unit, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - F Baldini
- HIV/AIDS Unit, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - M R Capobianchi
- Laboratory of Virology, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
| | - A Antinori
- HIV/AIDS Unit, National Institute for Infectious Diseases, Lazzaro Spallanzani IRCCS, Rome, Italy
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2
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Capobianchi MR, Rueca M, Messina F, Giombini E, Carletti F, Colavita F, Castilletti C, Lalle E, Bordi L, Vairo F, Nicastri E, Ippolito G, Gruber CEM, Bartolini B. Molecular characterization of SARS-CoV-2 from the first case of COVID-19 in Italy. Clin Microbiol Infect 2020; 26:954-956. [PMID: 32229288 PMCID: PMC7118617 DOI: 10.1016/j.cmi.2020.03.025] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 03/17/2020] [Accepted: 03/21/2020] [Indexed: 11/29/2022]
Affiliation(s)
- M R Capobianchi
- National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - M Rueca
- National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - F Messina
- National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - E Giombini
- National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - F Carletti
- National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - F Colavita
- National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - C Castilletti
- National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - E Lalle
- National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - L Bordi
- National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - F Vairo
- National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - E Nicastri
- National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - G Ippolito
- National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
| | - C E M Gruber
- National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy.
| | - B Bartolini
- National Institute for Infectious Diseases Lazzaro Spallanzani IRCCS, Rome, Italy
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3
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Cimini E, de Minicis S, Sacchi A, Bordoni V, Casetti R, Colavita F, Capobianchi M, Castilletti C, Agrati C. Vδ2 T cells inhibit ZIKA replication by cytolitic and non cytolitic mechanisms. Int J Infect Dis 2019. [DOI: 10.1016/j.ijid.2018.11.299] [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: 10/27/2022] Open
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4
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Puro V, Fusco FM, Castilletti C, Carletti F, Colavita F, Agrati C, Di Caro A, Capobianchi MR, Ippolito G. Occupational transmission of an Orthopoxvirus infection during an outbreak in a colony of Macaca tonkeana in Lazio Region, Italy, 2015. Zoonoses Public Health 2018; 65:578-583. [PMID: 29512303 PMCID: PMC7165952 DOI: 10.1111/zph.12459] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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: 11/07/2017] [Indexed: 01/28/2023]
Abstract
Orthopoxviruses spill over from animal reservoirs to accidental hosts, sometimes causing human infections. We describe the surveillance and infection control measures undertaken during an outbreak due to an Orthopoxvirus occurred in January 2015 in a colony of Macaca tonkeana in the province of Rieti, Latio, Italy, which caused a human asymptomatic infection. According to the epidemiological investigation, the human transmission occurred after an unprotected exposure. The contacts among wild, captive and domestic animals and humans, together with decreased immunity against Orthopoxviruses in the community, may put animal handlers at risk of infection, especially after the cessation of smallpox vaccination. To reduce these threats, standard precautions including respiratory hygiene and transmission‐based precautions should be carefully applied also in veterinary medicine.
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Affiliation(s)
- V Puro
- Epidemiology and Pre-clinical Research Department, National Institute for Infectious Diseases "L. Spallanzani", Rome, Italy
| | - F M Fusco
- Epidemiology and Pre-clinical Research Department, National Institute for Infectious Diseases "L. Spallanzani", Rome, Italy
| | - C Castilletti
- Laboratory of Virology, National Institute for Infectious Diseases "L. Spallanzani", Rome, Italy
| | - F Carletti
- Laboratory of Virology, National Institute for Infectious Diseases "L. Spallanzani", Rome, Italy
| | - F Colavita
- Laboratory of Virology, National Institute for Infectious Diseases "L. Spallanzani", Rome, Italy
| | - C Agrati
- Cellular Immunology Laboratory, National Institute for Infectious Diseases "L. Spallanzani", Rome, Italy
| | - A Di Caro
- Laboratory of Virology, National Institute for Infectious Diseases "L. Spallanzani", Rome, Italy
| | - M R Capobianchi
- Laboratory of Virology, National Institute for Infectious Diseases "L. Spallanzani", Rome, Italy
| | - G Ippolito
- Scietific Direction, National Institute for Infectious Diseases "L. Spallanzani", Rome, Italy
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5
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Colavita F, Biava M, Mertens P, Gilleman Q, Borlon C, Delli Guanti M, Petrocelli A, Cataldi G, Kamara AT, Kamara SA, Konneh K, Vincenti D, Castilletti C, Abdurahman S, Mirazimi A, Capobianchi MR, Ippolito G, Miccio R, Di Caro A. EBOLA Ag K-SeT rapid test: field evaluation in Sierra Leone. Clin Microbiol Infect 2017; 24:653-657. [PMID: 29107122 DOI: 10.1016/j.cmi.2017.10.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 10/19/2017] [Accepted: 10/20/2017] [Indexed: 11/16/2022]
Abstract
OBJECTIVES Efficient interruption of Ebola virus disease (EVD) transmission chains critically depends on reliable and fast laboratory diagnosis. We evaluated the performance of the EBOLA Virus Antigen Detection K-SeT (EBOLA Ag K-SeT), a new rapid diagnostic antigen test in field settings. METHODS The study was conducted in a field laboratory located in Freetown (Sierra Leone) by the Italian National Institute for Infectious Diseases 'L. Spallanzani' and the EMERGENCY Onlus NGO. The EBOLA Ag K-SeT was tested on 210 residual plasma samples (EVD prevalence 50%) from patients hospitalized at the EMERGENCY Ebola treatment center in Goderich (Freetown), comparing the results with quantitative real-time PCR. RESULTS Overall, the sensitivity of EBOLA Ag K-SeT was 88.6% (95% confidence interval (CI), 82.5-94.7), and the corresponding specificity was 98.1% (95% CI, 95.5-100.7). The positive and negative predictive values were 97.9% (95% CI, 95.0-100.8) and 89.6% (95% CI, 84-95.2), respectively. The sensitivity strongly increased up to 98.7% (95% CI, 96.1-101.2) for those samples with high virus load (≥6.2 log RNA copies/mL). CONCLUSIONS Our results suggest that EBOLA Ag K-SeT could represent a new effective diagnostic tool for EVD, meeting a need for resource-poor settings and rapid diagnosis for individuals with suspected EVD.
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Affiliation(s)
- F Colavita
- National Institute for Infectious Diseases 'L. Spallanzani' IRCCS, Rome, Italy
| | - M Biava
- National Institute for Infectious Diseases 'L. Spallanzani' IRCCS, Rome, Italy
| | | | | | - C Borlon
- Coris BioConcept, Gembloux, Belgium
| | | | | | | | - A T Kamara
- EMERGENCY Onlus NGO, Milan, Italy; Diagnostic Ebola Virus Diseases Laboratory, 'Princess Christian Maternity Hospital', Freetown, Sierra Leone
| | - S A Kamara
- EMERGENCY Onlus NGO, Milan, Italy; Diagnostic Ebola Virus Diseases Laboratory, 'Princess Christian Maternity Hospital', Freetown, Sierra Leone
| | - K Konneh
- EMERGENCY Onlus NGO, Milan, Italy; Diagnostic Ebola Virus Diseases Laboratory, 'Princess Christian Maternity Hospital', Freetown, Sierra Leone
| | - D Vincenti
- National Institute for Infectious Diseases 'L. Spallanzani' IRCCS, Rome, Italy
| | - C Castilletti
- National Institute for Infectious Diseases 'L. Spallanzani' IRCCS, Rome, Italy
| | - S Abdurahman
- Public Health Agency of Sweden, Stockholm, Sweden
| | - A Mirazimi
- Public Health Agency of Sweden, Stockholm, Sweden; National Veterinary Institute, Uppsala, Sweden; Department of Medicine, Karolinska Institute, Stockholm, Sweden
| | - M R Capobianchi
- National Institute for Infectious Diseases 'L. Spallanzani' IRCCS, Rome, Italy
| | - G Ippolito
- National Institute for Infectious Diseases 'L. Spallanzani' IRCCS, Rome, Italy
| | - R Miccio
- EMERGENCY Onlus NGO, Milan, Italy
| | - A Di Caro
- National Institute for Infectious Diseases 'L. Spallanzani' IRCCS, Rome, Italy.
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6
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Fausther-Bovendo H, Qiu X, McCorrister S, Westmacott G, Sandstrom P, Castilletti C, Di Caro A, Ippolito G, Kobinger GP. Ebola virus infection induces autoimmunity against dsDNA and HSP60. Sci Rep 2017; 7:42147. [PMID: 28181533 PMCID: PMC5299614 DOI: 10.1038/srep42147] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [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: 11/15/2016] [Accepted: 01/05/2017] [Indexed: 11/15/2022] Open
Abstract
Ebola virus (EBOV) survivors are affected by a variety of serious illnesses of unknown origin for years after viral clearance from the circulation. Identifying the causes of these persistent illnesses is paramount to develop appropriate therapeutic protocols. In this study, using mouse and non-human primates which survived EBOV challenge, ELISA, western blot, mass spectrometry and flow cytometry were used to screen for autoantibodies, identify their main targets, investigate the mechanism behind their induction and monitor autoantibodies accumulation in various tissues. In infected mice and NHP, polyclonal B cell activation and autoantigens secretion induced autoantibodies against dsDNA and heat shock protein 60 as well as antibody accumulation in tissues associated with long-term clinical manifestations in humans. Finally, the presence of these autoantibodies was confirmed in human EBOV survivors. Overall, this study supports the concept that autoimmunity is a causative parameter that contributes to the various illnesses observed in EBOV survivors.
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Affiliation(s)
- H Fausther-Bovendo
- University of Manitoba, Winnipeg, Canada.,National Microbiology Laboratory, Public health Agency of Canada, Winnipeg, Canada
| | - X Qiu
- University of Manitoba, Winnipeg, Canada.,National Microbiology Laboratory, Public health Agency of Canada, Winnipeg, Canada
| | - S McCorrister
- JC Wilt Infectious Disease Research Centre, Winnipeg, Canada
| | - G Westmacott
- JC Wilt Infectious Disease Research Centre, Winnipeg, Canada
| | - P Sandstrom
- JC Wilt Infectious Disease Research Centre, Winnipeg, Canada.,National HIV and Retrovirology Laboratory, Ottawa, Canada
| | - C Castilletti
- Lazzaro Spallanzani, National Institute for Infectious Diseases-IRCCS, Rome, Italy
| | - A Di Caro
- Lazzaro Spallanzani, National Institute for Infectious Diseases-IRCCS, Rome, Italy
| | - G Ippolito
- Lazzaro Spallanzani, National Institute for Infectious Diseases-IRCCS, Rome, Italy
| | - G P Kobinger
- National Microbiology Laboratory, Public health Agency of Canada, Winnipeg, Canada.,Department of Pathology and Laboratory Medicine, University of Pennsylvania School 27 of Medicine, Philadelphia, PA, USA.,Laval University, Department of Microbiology and Immunology, Faculty of Medicine, Quebec, Canada
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7
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Falasca F, Maida P, Gaeta A, Verzaro S, Mezzaroma I, Fantauzzi A, Donato G, Bonci E, Castilletti C, Antonelli G, Turriziani O. Detection and quantification of EBV, HHV-6 and CMV DNA in the gastrointestinal tract of HIV-positive patients. Infection 2014; 42:1033-7. [PMID: 25326253 DOI: 10.1007/s15010-014-0690-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2014] [Accepted: 10/06/2014] [Indexed: 12/22/2022]
Abstract
Human herpes viruses (HHVs) have been frequently detected in the gastrointestinal (GI) tract and may contribute to the development of gastric cancer. In the present study, the detection rate and viral load of Epstein Barr virus (EBV), HHV-6 and Cytomegalovirus (CMV) were assessed in the GI tract of human immunodeficiency virus (HIV) positive patients and of uninfected patients. The analysis revealed a significantly higher detection rate of EBV and HHV-6 in HIV-infected individuals than in uninfected subjects (88.5 vs 63%; p = 0.03). Moreover, EBV DNA load was significantly higher in the stomach of HIV patients than in controls. These data suggest that the HIV infection status may increase the persistence of these viruses in the GI compartment. Intriguingly, CMV DNA was undetectable in all biopsy specimens analyzed.
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Affiliation(s)
- F Falasca
- Department of Molecular Medicine, Sapienza University, Viale dell'Università 31, 00185, Rome, Italy
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8
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Bordi L, Lalle E, Lapa D, Caglioti C, Quartu S, Capobianchi MR, Castilletti C. Type III interferon (IFN-lambda) antagonizes the antiviral activity of interferon-alpha in vitro. J BIOL REG HOMEOS AG 2013; 27:1001-9. [PMID: 24382181] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Type III interferons (IFN-lambda) are the most recently discovered members of IFN family. Synergism between different IFN types is well established, but for type I and type III IFNs no conclusive evidence has been reported so far. Possible synergism/antagonism between IFN-alpha and IFN-lambda in the inhibition of virus replication (EMCV, WNV lineage 1 and 2, CHIKV and HSV-1), and in the activation of intracellular pathways of IFN response (MxA and 2'-5' OAS) was evaluated in different cell lines (Vero E6, A549 and Wish cells). The antiviral potency of IFN-lambda1 and -l2 was lower than that of IFN-alpha. When IFN-alpha and -lambda were used together, the Combination Index (CI) for virus inhibition was greater than 1 virtually for all virus/host cell systems, indicating antagonistic effect. Antagonism between IFN-alpha and -l was also observed for the induction of mRNA for both MxA and 2'-5'OAS. Elucidating the interplay between IFN-alpha and -lambda may help to better understand innate defence mechanisms against viral infections, including the molecular mechanisms underlying the influence of IL-28B polymorphisms in the response to HCV and other viral infections.
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Affiliation(s)
- L Bordi
- Laboratory of Virology, National Institute for Infectious Diseases L. Spallanzani, Rome, Italy
| | - E Lalle
- Laboratory of Virology, National Institute for Infectious Diseases L. Spallanzani, Rome, Italy
| | - D Lapa
- Laboratory of Virology, National Institute for Infectious Diseases L. Spallanzani, Rome, Italy
| | - C Caglioti
- Laboratory of Virology, National Institute for Infectious Diseases L. Spallanzani, Rome, Italy
| | - S Quartu
- Laboratory of Virology, National Institute for Infectious Diseases L. Spallanzani, Rome, Italy
| | - M R Capobianchi
- Laboratory of Virology, National Institute for Infectious Diseases L. Spallanzani, Rome, Italy
| | - C Castilletti
- Laboratory of Virology, National Institute for Infectious Diseases L. Spallanzani, Rome, Italy
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9
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Adams NG, Adekambi T, Afeltra J, Aguado J, Aires de Sousa M, Akiyoshi K, Al Hasan M, Ala-Kokko T, Albert M, Alfandari S, Allen D, Allerberger F, Almyroudis N, Alp E, Amin R, Anderson-Berry A, Andes DR, Andremont A, Andreu A, Angelakis M, Antachopoulos C, Antoniadou A, Arabatzis M, Arlet G, Arnez M, Arnold C, Asensio A, Asseray N, Ausiello C, Avni T, Ayling R, Baddour L, Baguelin M, Bányai K, Barbour A, Basco LK, Bauer D, Bayston R, Beall B, Becker K, Behr M, Bejon P, Belliot G, Benito-Fernandez J, Benjamin D, Benschop K, Berencsi G, Bergeron MG, Bernard K, Berner R, Beyersmann J, Bille J, Bizzini A, Bjarnsholt T, Blanc D, Blanco J, Blot S, Bohnert J, Boillat N, Bonomo R, Bonten M, Bordon JM, Borel N, Boschiroli ML, Bosilkovski M, Bosso JA, Botelho-Nevers E, Bou G, Bretagne S, Brouqui P, Brun-Buisson C, Brunetto M, Bucher H, Buchheidt D, Buckling A, Bulpa P, Cambau E, Canducci F, Cantón R, Capobianchi M, Carattoli A, Carcopino X, Cardona-Castro N, Carling PC, Carrat F, Castilla J, Castilletti C, Cavaco L, Cavallo R, Ceccherini-Silberstein F, Centrón D, Chappuis F, Charrel R, Chen M, Chevaliez S, Chezzi C, Chomel B, Chowers M, Chryssanthou E, Ciammaruconi A, Ciccozzi M, Cid J, Ciofu O, Cisneros D, Ciufolini MG, Clark C, Clarke SC, Clayton R, Clementi M, Clemons K, Cloeckaert A, Cloud J, Coenye T, Cohen Bacri S, Cohen R, Coia J, Colombo A, Colson P, Concerse P, Cordonnier C, Cormican M, Cornaglia G, Cornely O, Costa S, Cots F, Craxi A, Creti R, Crnich C, Cuenca Estrella M, Cusi MG, d'Ettorre G, da Cruz Lamas C, Daikos G, Dannaoui E, De Barbeyrac B, De Grazia S, de Jager C, de Lamballerie X, de Marco F, del Palacio A, Delpeyroux F, Denamur E, Denis O, Depaquit J, Deplano A, Desenclos JC, Desjeux P, Deutch S, Di Luca D, Dianzani F, Diep B, Diestra K, Dignani C, Dimopoulos G, Divizia M, Doi Y, Dornbusch HJ, Dotis J, Drancourt M, Drevinek P, Dromer F, Dryden M, Dubreuil L, Dubus JC, Dumitrescu O, Dumke R, DuPont H, Edelstein M, Eggimann P, Eis-Huebinger AM, El Atrouni WI, Entenza J, Ergonul O, Espinel-Ingroff A, Esteban J, Etienne J, Fan XG, Fenollar F, Ferrante P, Ferrieri P, Ferry T, Feuchtinger T, Finegold S, Fingerle V, Fitch M, Fitzgerald R, Flori P, Fluit A, Fontana R, Fournier PE, François M, Francois P, Freedman DO, Friedrich A, Gallego L, Gallinella G, Gangneux JP, Gannon V, Garbarg-Chenon A, Garbino J, Garnacho-Montero J, Gatermann S, Gautret P, Gentile G, Gerlich W, Ghannoum M, Ghebremedhin B, Ghigo E, Giamarellos-Bourboulis E, Girgis R, Giske C, Glupczynski Y, Gnarpe J, Gomez-Barrena E, Gorwitz RJ, Gosselin R, Goubau P, Gould E, Gradel K, Gray J, Gregson D, Greub G, Grijalva CG, Groll A, Groschup M, Gutiérrez J, Hackam DG, Hall WA, Hallett R, Hansen S, Harbarth S, Harf-Monteil C, Hasanjani RMR, Hasler P, Hatchette T, Hauser P, He Q, Hedges A, Helbig J, Hennequin C, Herrmann B, Hezode C, Higgins P, Hoesli I, Hoiby N, Hope W, Houvinen P, Hsu LY, Huard R, Humphreys H, Icardi M, Imoehl M, Ivanova K, Iwamoto T, Izopet J, Jackson Y, Jacobsen K, Jang TN, Jasir A, Jaulhac B, Jaureguy F, Jefferies JM, Jehl F, Johnstone J, Joly-Guillou ML, Jonas M, Jones M, Joukhadar C, Kahl B, Kaier K, Kaiser L, Kato H, Katragkou A, Kearns A, Kern W, Kerr K, Kessin R, Kibbler C, Kimberlin D, Kittang B, Klaassen C, Kluytmans J, Ko WC, Koh WJ, Kostrzewa M, Kourbeti I, Krause R, Krcmery V, Krizova P, Kuijper E, Kullberg BJ, Kumar G, Kunin CM, La Scola B, Lagging M, Lagrou K, Lamagni T, Landini P, Landman D, Larsen A, Lass-Floerl C, Laupland K, Lavigne JP, Leblebicioglu H, Lee B, Lee CH, Leggat P, Lehours P, Leibovici L, Leon L, Leonard N, Leone M, Lescure X, Lesprit P, Levy PY, Lew D, Lexau CA, Li SY, Li W, Lieberman D, Lina B, Lina G, Lindsay JA, Livermore D, Lorente L, Lortholary O, Lucet JC, Lund B, Lütticken R, MacLeod C, Madhi S, Maertens J, Maggi F, Maiden M, Maillard JY, Maira-Litran T, Maltezou H, Manian FA, Mantadakis E, Maragakis L, Marcelin AG, Marchaim D, Marchetti O, Marcos M, Markotic A, Martina B, Martínez J, Martinez JL, Marty F, Maurin M, McGee L, Mediannikov O, Meersseman W, Megraud F, Meletiadis J, Mellmann A, Meyer E, Meyer W, Meylan P, Michalopoulos A, Micol R, Midulla F, Mikami Y, Miller RF, Miragaia M, Miriagou V, Mitchell TJ, Miyakis S, Mokrousov I, Monecke S, Mönkemüller K, Monno L, Monod M, Morales G, Moriarty F, Morosini I, Mortensen E, Mubarak K, Mueller B, Mühlemann K, Muñoz Bellido JL, Murray P, Muscillo M, Mylotte J, Naessens A, Nagy E, Nahm MH, Nassif X, Navarro D, Navarro F, Neofytos D, Nes I, Ní Eidhin D, Nicolle L, Niederman MS, Nigro G, Nimmo G, Nordmann P, Nougairède A, Novais A, Nygard K, Oliveira D, Orth D, Ortiz JR, Osherov N, Österblad M, Ostrosky-Zeichner L, Pagano L, Palamara AT, Pallares R, Panagopoulou P, Pandey P, Panepinto J, Pappas G, Parkins M, Parola P, Pasqualotto A, Pasteran F, Paul M, Pawlotsky JM, Peeters M, Peixe L, Pepin J, Peralta G, Pereyre S, Perfect JR, Petinaki E, Petric M, Pettigrew M, Pfaller M, Philipp M, Phillips G, Pichichero M, Pierangeli A, Pierard D, Pigrau C, Pilishvili T, Pinto F, Pistello M, Pitout J, Poirel L, Poli G, Poppert S, Posfay-Barbe K, Pothier P, Poxton I, Poyart C, Pozzetto B, Pujol M, Pulcini C, Punyadeera C, Ramirez M, Ranque S, Raoult D, Rasigade JP, Re MC, Reilly JS, Reinert R, Renaud B, Rice L, Rich S, Richet H, Rigouts L, Riva E, Rizzo C, Robotham J, Rodicio MR, Rodriguez J, Rodriguez-Bano J, Rogier C, Roilides E, Rolain JM, Rooijakkers S, Rooney P, Rossi F, Rotimi V, Rottman M, Roux V, Ruhe J, Russo G, Sadowy E, Sagel U, Said SI, Saijo M, Sak B, Sa-Leao R, Sanders EAM, Sanguinetti M, Sarrazin C, Savelkoul P, Scheifele D, Schmidt WP, Schønheyder H, Schönrich G, Schrenzel J, Schubert S, Schwarz K, Schwarz S, Sefton A, Segondy M, Seifert H, Seng P, Senneville E, Sexton D, Shafer RW, Shalit I, Shankar N, Shata TM, Shields J, Sibley C, Sicinschi L, Siljander T, Simitsopoulou M, Simoons-Smit AM, Sissoko D, Sjögren J, Skiada A, Skoczynska A, Skov R, Slack M, Sogaard M, Sola C, Soriano A, Sotto A, Sougakoff W, Sougakoff W, Souli M, Spelberg B, Spelman D, Spiliopoulou I, Springer B, Stefani S, Stein A, Steinbach WJ, Steinbakk M, Strakova L, Strenger V, Sturm P, Sullivan P, Sutton D, Symmons D, Tacconelli E, Tamalet C, Tang JW, Tang YW, Tattevin P, Thibault V, Thomsen RW, Thuny F, Tong S, Torres C, Townsend R, Tristan A, Trouillet JL, Tsai HC, Tsitsopoulos P, Tuerlinckx D, Tulkens P, Tumbarello M, Tureen J, Turnidge JD, Turriziani O, Tutuian R, Uçkay I, Upton M, Vabret A, Vamvakas EC, van den Boom D, Van Eldere J, van Leeuwen W, van Strijp J, Van Veen S, Vandamme P, Vandenesch F, Vayssier M, Velin D, Venditti M, Venter M, Venuti A, Vergnaud G, Verheij T, Verhofstede C, Viscoli C, Vizza CD, Vogel U, Waller A, Wang YF, Warn P, Warris A, Wauters G, Weidmann M, Weill FX, Weinberger M, Welch D, Wellinghausen N, Wheat J, Widmer A, Wild F, Willems R, Willinger B, Winstanley C, Witte W, Wolff M, Wong F, Wootton M, Wyllie D, Xu W, Yamamoto S, Yaron S, Yildirim I, Zaoutis T, Zazzi M, Zbinden R, Zehender GG, Zemlickova H, Zerbini ML, Zhang L, Zhang Y, Zhao YD, Zhu Z, Zimmerli W. ACKNOWLEDGEMENT OF REVIEWERS. Clin Microbiol Infect 2011. [DOI: 10.1111/j.1469-0691.2010.03428.x] [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: 11/28/2022]
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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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11
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Meschi S, Schepisi MS, Nicastri E, Bevilacqua N, Castilletti C, Sciarrone M, Paglia M, Fumakule R, Mohamed J, Kitwa A, Mangi S, Molteni F, Di Caro A, Vairo F, Capobianchi M, Ippolito G. The prevalence of antibodies to human herpesvirus 8 and hepatitis B virus in patients in two hospitals in Tanzania. J Med Virol 2010; 82:1569-75. [DOI: 10.1002/jmv.21852] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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12
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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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14
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Nisii C, Castilletti C, Di Caro A, Capobianchi MR, Brown D, Lloyd G, Gunther S, Lundkvist A, Pletschette M, Ippolito G. The European network of Biosafety-Level-4 laboratories: enhancing European preparedness for new health threats. Clin Microbiol Infect 2009; 15:720-6. [PMID: 19754729 PMCID: PMC7128751 DOI: 10.1111/j.1469-0691.2009.02946.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [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: 11/27/2022]
Abstract
Emerging and re-emerging infections and possible bioterrorism acts will continue to challenge both the medical community and civilian populations worldwide, urging health authorities to respond rapidly and effectively. Established in 2005, the European Community (EC)-funded European Network of Biosafety-Level-4 laboratories (Euronet-P4), which brings together the laboratories in Porton Down, London, Hamburg, Marburg, Solna, Lyon and Rome, seeks to increase international collaboration in the areas of high containment laboratory biosafety and viral diagnostic capability, to strengthen Europe's capacity to respond to an infectious disease emergency, and to offer assistance to countries not equipped with such costly facilities. Network partners have agreed on a common strategy to fill the gaps identified in the field of risk group-4 agents’ laboratory diagnosis, namely the lack of standardization and of reference samples. The network has received a further 3-year funding, to offer assistance to external laboratories, and to start the planning of field activities.
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Affiliation(s)
- C Nisii
- Infectious Disease Biorepository, National Institute for Infectious Diseases L. Spallanzani, 00149 Rome, Italy
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Lalle E, Sacchi A, Abbate I, Vitale A, Martini F, D'Offizi G, Antonucci G, Castilletti C, Poccia F, Capobianchi MR. Activation of interferon response genes and of plasmacytoid dendritic cells in HIV-1 positive subjects with GB virus C co-infection. Int J Immunopathol Pharmacol 2008; 21:161-71. [PMID: 18336742 DOI: 10.1177/039463200802100118] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
GB virus C (GBV-C) coinfection has a protective role in Human Immunodeficiency Virus (HIV) infection, and increases the duration of suppression of HIV-1 viremia in patients under Highly Active Anti-Retroviral Therapy (HAART). Since innate antiviral response may be involved in the protection, we analyzed the possible role of GBV-C as activator of innate immunity. To this aim, we measured the extent of activation of the interferon (IFN) system and of circulating Dendritic Cells (DC) in vivo, and the ability of GBV-C to activate these functions in vitro. Activation of IFN system and of circulating DC was compared in GBV-positive and -negative HIV-1 co-infected patients with HAART-driven suppression of HIV-1 viremia. Endogenous levels of IFN-gamma and RNA-dependent protein kinase (PKR) mRNA were significantly higher in peripheral blood mononuclear cells (PBMC) from GBV-C-positive when compared to GBV-C-negative patients. IFN-gamma expression was correlated with all the Interferon response genes (IRGs) and with GBV-C viremia. The frequency of circulating plasmacytoid DC (pDC) expressing the CD80 activation marker was increased in GBV-C-positive patients, and was correlated with GBV-C viral load. In vitro experiments indicated that GBV-C is able to induce IFN-gamma expression in PBMC. In addition, in PBMC cultures GBV-C induced an increase of CD80 expression by pDC, that was reduced by antibody to IFN-gamma. Our data indicate that in HIV-positive patients GBV-C coinfection promotes the activation of IFN-gamma and downstream IRG expression, as well as with the activation/maturation of circulating pDC. GBV-C-driven IFN-gamma activation is, at least in part, responsible for the increased maturation of pDC. This crosstalk may suggest a role for GBV-C coinfection in boosting the innate antiviral response to HIV infection.
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Affiliation(s)
- E Lalle
- Laboratory of Virology, National Institute for Infectious Diseases, INMI, L. Spallanzani, Rome, Italy
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16
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Carletti F, Bordi L, Chiappini R, Ippolito G, Sciarrone M, Capobianchi M, Di Caro A, Castilletti C. NUOVA REAL TIME RT-PCR PER L’IDENTIFICAZIONE E LA RILEVAZIONE QUANTITATIVA DEL VIRUS CHIKUNGUNYA IN CAMPIONI BIOLOGICI ED IN COLTURE CELLULARI. Microbiol Med 2007. [DOI: 10.4081/mm.2007.2832] [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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17
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Valdarchi C, Serraino D, Cordiali Fei P, Castilletti C, Trento E, Farchi F, Rezza G. Demographic Indicators and Risk of Infection with Human Herpesvirus Type 8 in Central Italy. Infection 2007; 35:22-5. [PMID: 17297585 DOI: 10.1007/s15010-007-5123-2] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2005] [Accepted: 11/14/2006] [Indexed: 10/23/2022]
Abstract
BACKGROUND A cross-sectional study was conducted in Latium and Abruzzo Regions (Central Italy) to estimate the prevalence of infection with human herpesvirus type 8 (HHV-8) and the association between demographic indicators and risk of HHV-8 infection. PATIENTS AND METHODS Sera from 416 healthy individuals (>or=45 years of age), originally recruited in a multicentric case-control study on classic Kaposi's sarcoma (KS), were tested for antibodies against HHV-8. The association between demographic indicators (i.e., urban/rural residence, occupation) and HHV-8 seropositivity was assessed by means of multiple logistic regression (MLR) odds ratios (OR) and 95% confidence intervals (CI), adjusted for age and occupation. RESULTS Overall, 20.4% of the study participants had antibodies against HHV-8, 23.2% of the men and 17.0% of the women (p = 0.15). HHV-8 seropositivity rates significantly increased with age (p = 0.01), from 10.0% in those under 65 years of age to 24.9% in 75 years or older (MLROR = 2.4). By multivariate analysis, a significantly 2-fold higher risk of HHV-8 was found in individuals living in rural areas, as compared to those living in metropolitan/urban areas (MLR-OR = 2.0, 95% CI: 1.1-3.5), and in farmers, as compared to white collars (MLR-OR = 2.1, 95% CI: 1.1-4.1). CONCLUSIONS The study findings suggest that demographic factors such as age, urban/rural residence, and occupation are associated with HHV-8 seropositivity among adult individuals living in central Italy.
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Affiliation(s)
- C Valdarchi
- Epidemiology Unit, Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy
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18
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Lalle E, Abbate I, Martini F, D’Offizi G, Antonucci G, Castilletti C, Dianzani F, Capobianchi M. L’AUMENTO DEI LIVELLI DI ESPRESSIONE DELL’IFN-GAMMA È ASSOCIATO ALLA COINFEZIONE CON GBV-C IN PAZIENTI HIV INFETTI. Microbiol Med 2006. [DOI: 10.4081/mm.2006.3237] [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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19
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Castilletti C, Bordi L, Lalle E, Rozera G, Poccia F, Agrati C, AbbateI A, Capobianchi M. SARS-COV INDUCE L’ESPRESSIONE DI IFN-α E-γ IN PBMC DA DONATORI SANI ANCHE IN ASSENZA DI REPLICAZIONE VIRALE. Microbiol Med 2005. [DOI: 10.4081/mm.2005.3570] [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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20
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Di Caro A, Castilletti C, Chiappini R, Travaglini D, Girardi E, Chan P, Capobianchi M. CONFRONTO TRA IMMUNOFLUORESCENZA, NEUTRALIZZAZIONE E INDICE DI AVIDITA’ NELLA RILEVAZIONE DELLA RISPOSTA ANTICORPALE ANTI-SARS-CoV. Microbiol Med 2005. [DOI: 10.4081/mm.2005.3608] [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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21
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Bordi L, Castilletti C, Falasca L, Ciccosanti F, Calcaterra S, Rozera G, Di Caro A, Zaniratti S, Rinaldi A, Ippolito G, Piacentini M, Capobianchi MR. Bcl-2 inhibits the caspase-dependent apoptosis induced by SARS-CoV without affecting virus replication kinetics. Arch Virol 2005; 151:369-77. [PMID: 16155806 PMCID: PMC7086587 DOI: 10.1007/s00705-005-0632-8] [Citation(s) in RCA: 29] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2004] [Accepted: 08/02/2005] [Indexed: 01/20/2023]
Abstract
Vero cells transfected with either neo- or bcl-2-plasmid were infected with SARS-CoV at a high multiplicity of infection. Apoptosis appeared after the onset of CPE and completion of virus replication, and could be prevented by Bcl-2 expression. Apoptosis is likely mediated by the mitochondrial pathway, as demonstrated by its inhibition using Bcl-2, and by the activation of the caspase cascade, resulting in PARP cleavage. Prevention of apoptosis did not affect susceptibility to infection, kinetics and extent of viral replication and release, thus implying that apoptosis is not involved in facilitating release and/or dissemination of SARS-CoV in Vero cells.
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Affiliation(s)
- L Bordi
- Laboratory of Virology, National Institute for Infectious Diseases INMI L. Spallanzani, Rome, Italy
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Castilletti C, Capobianchi M, Carletti F, Calcaterra S, Preziosi R, Bernardini G, Perno C, Armignacco O. CARATTERIZZAZIONE BIOLOGICA DI HIV-1 ISOLATO DURANTE UN’INFEZIONE PRIMARIA ASSOCIATA AD UNA SINDROME EMOFAGOCITICA SEVERA. Microbiol Med 2003. [DOI: 10.4081/mm.2003.4356] [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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Abstract
IFN alpha causes a modest reduction of HIV-1 expression in chronically infected monocytoid U937 cells. However, the ratio between cell-associated and shed viral p24 antigen is altered, being the cell-associated fraction dose-dependently enhanced by IFN. Furthermore, a significant decrease of infectivity of both cell-associated and shed material is observed. Transmission electron microscopy of IFN-treated cells revealed virus assembly being strongly inhibited, with the production of morphologically altered (tear-drop shaped) virus particles. Proteolytic processing of gag proteins appeared to be normal in IFN-treated cultures. However, virions shed from IFN-treated cells showed a markedly reduced incorporation of virus-specific gp120 and cell-derived ICAM-1 by the virus envelope. Additionally, these particles showed a significantly decreased ability to become bound to CD4+ target cells, accounting for, at least in part, the observed decrease of infectivity. Taken together, the data suggest that, in chronically infected cells, IFN alpha can affect late stages of HIV-1 replication, by inhibiting virus assembly and release, and by reducing the infectivity of shed virions. The latter effect seems to be due, at least in part, to altered incorporation of surface glycoproteins and defective particle formation. The relationship between impaired gp120 incorporation and altered morphogenesis of HIV-1 virions is under investigation.
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Affiliation(s)
- F Dianzani
- Institute of Virology, University La Sapienza, Rome, Italy
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24
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Ankel H, Capobianchi MR, Frezza F, Castilletti C, Dianzani F. Interferon induction by HIV-1-infected cells: a possible role of sulfatides or related glycolipids. Virology 1996; 221:113-9. [PMID: 8661419 DOI: 10.1006/viro.1996.0357] [Citation(s) in RCA: 16] [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] [Indexed: 02/01/2023]
Abstract
We have investigated the mechanism of interferon (IFN) induction in peripheral blood mononuclear cells by HIV-1(IIIB)-infected H9 cells or by recombinant gp120. A monoclonal antibody specific for the galactosylsphingosinyl moiety in galactocerebrosides and sulfatides inhibited IFN induction in a dose-dependent manner. Furthermore, exogenous sulfatides inhibited with an ID50 of approximately 1 microM, whereas galactocerebrosides were not inhibitory at 40 times higher concentrations. These studies suggest that sulfate containing galactolipids such as sulfatides on responder cells may be part of the gp120-membrane complex that initiates the induction of IFN. A partial homology of an epitope on the V3 loop of gp 120 with a previously suggested binding domain for sulfated glycoconjugates supports this conclusion.
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Affiliation(s)
- H Ankel
- Medical College of Wisconsin, Milwaukee 53226, USA
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Abbate I, Capobianchi MR, Fais S, Castilletti C, Mercuri F, Cordiali Fei P, Ameglio F, Dianzani F. Host cell antigenic profile acquired by HIV-1 is a marker of its cellular origin. Arch Virol 1995; 140:1849-54. [PMID: 7503684 DOI: 10.1007/bf01384347] [Citation(s) in RCA: 12] [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: 01/25/2023]
Abstract
HIV-1 acquires cell membrane proteins during budding. The cell membrane proteins (CMP) profile of laboratory HIV-1 strains grown in different host cells was established, by using an immobilized antibody capture (IAC), to verify whether CMPs present on HIV-1 correlate with its host cell origin. HIV-1 grown in different cell lines incorporates cell markers such as CD3, CD19, CD14, CD31 and IL 2-R, according to the distinctive expression of these antigens on the host cells. Furthermore, also T-tropic and monocytotropic HIV-1 strains display host cell specific markers, supporting the hypothesis that virus associated CMPs are a marker of host cell origin.
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Affiliation(s)
- I Abbate
- Institute of Virology, University La Sapienza, Rome, Italy
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Castilletti C, Capobianchi MR, Fais S, Abbate I, Ficociello B, Ameglio F, Cordiali Fei P, Santini SM, Dianzani F. HIV type 1 grown on interferon gamma-treated U937 cells shows selective increase in virion-associated intercellular adhesion molecule 1 and HLA-DR and enhanced infectivity for CD4-negative cells. AIDS Res Hum Retroviruses 1995; 11:547-53. [PMID: 7576910 DOI: 10.1089/aid.1995.11.547] [Citation(s) in RCA: 44] [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] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Cellular adhesion molecules, such as ICAM-1, -2, and -3; LFA-1; and HLA class I and II are incorporated into HIV-1 virions during budding from infected cells. These virion-associated molecules can be involved in the adsorption to susceptible cells displaying the corresponding counterligands. A number of cytokines have been shown to upregulate the cellular expression of adhesion molecules, such as ICAM-1 and HLA-DR. In this study we investigated the effects of IFN-gamma on the incorporation of ICAM-1, LFA-1, and HLA-DR into mature HIV-1 progeny from chronically infected cells. The ability of such virus progeny to infect either CD4-positive or -negative cells was also investigated. The results indicate that IFN-gamma stimulates the expression of ICAM-1 and of HLA-DR on HIV-1-infected cells, whereas LFA-1 expression is unaffected. The same modifications were also observed on virus progeny, because specific MAbs to ICAM-1 and HLA-DR captured infectious HIV-1 from IFN-treated cells with higher efficiency as compared to virus from control cells, whereas virus binding to anti LFA-1 MAb was unchanged. Moreover, the HIV-1 progeny released from IFN-treated cells showed an increased ability to bind to and to infect CD4-negative cells, whereas the infectivity was basically unchanged for CD4-positive cells. Our results suggest that cytokines, as well as other soluble factors, may expand the host cell range of HIV-1, possibly through modifications of the cell-derived surface molecules on the virions.(ABSTRACT TRUNCATED AT 250 WORDS)
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Scheglovitova O, Scanio V, Fais S, Papadia S, Abbate I, Castilletti C, Dianzani F, Capobianchi MR. Antibody to ICAM-1 mediates enhancement of HIV-1 infection of human endothelial cells. Arch Virol 1995; 140:951-8. [PMID: 7605206 DOI: 10.1007/bf01314971] [Citation(s) in RCA: 11] [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
Human umbilical vein endothelial cells (HUVEC) can be abortively infected with HIV-1, but virus production is rescued by the addition of T cells. Monoclonal antibody (Mab) to ICAM-1, but not its Fab' fragment or MAbs to LFA-1 and PECAM-1, increases HIV-1 infection of HUVEC by enhancing HIV-1 absorption. Enhancement by anti ICAM-1 is probably due to a bridging effect different from the ADE mediated by anti-gp120 that involves FcR or CR-mediated capture of the virus-antibody complex. Since antibodies to cell membrane molecules are present in HIV-1 infected patients, the ADE mediated by such a mechanism can be important in AIDS pathogenesis.
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Affiliation(s)
- O Scheglovitova
- Gamaleya Institute for Microbiology and Epidemiology, Moscow, Russia
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Fais S, Capobianchi MR, Abbate I, Castilletti C, Gentile M, Cordiali Fei P, Ameglio F, Dianzani F. Unidirectional budding of HIV-1 at the site of cell-to-cell contact is associated with co-polarization of intercellular adhesion molecules and HIV-1 viral matrix protein. AIDS 1995; 9:329-35. [PMID: 7794538] [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: 01/27/2023]
Abstract
OBJECTIVES To explore the possibility that HIV-1 budding and cellular adhesion molecules co-polarize at cell-to-cell contact sites. To investigate the incorporation of host-cell-derived adhesion molecules into HIV-1. METHODS The cellular sites involved in HIV-1 budding were examined by transmission electron microscopy. Single and double immunocytochemistry staining was used to evaluate the cellular distribution of the viral matrix protein and adhesion molecules. Quantitative flow cytometry was used to measure the cellular expression of adhesion molecules. An immunocapture technique was used to measure the presence of cell-derived proteins on HIV-1. The captured virus was measured by a p24 antigen assay. The infectivity of virus captured by monoclonal antibodies was tested by measuring the virus antigen yield in supernatants after the addition of sensitive cells. RESULTS Released and budding HIV-1 was mainly localized at the cell-to-cell contact regions. This feature was consistent with a polarized staining for the virus matrix protein p18 at cell-to-cell contact regions. Intercellular adhesion molecules (ICAM)-1 in HIV-1-infected cells were polarized on both isolated cells and syncytia, co-localizing with HIV-1 matrix protein. HIV-1 incorporated all the adhesion molecules expressed by the host cells, although without quantitative correlation with their cellular expression. CONCLUSIONS HIV-1 is released at cell-to-cell membrane contact sites. Both ICAM-1 and virus matrix protein co-polarized on isolated cells and syncytia at the sites involved in the recruitment of uninfected cells. The impressive concentration of ICAM at cell sites where most virions are released may account for the acquisition of these membrane proteins by the HIV-1 progeny, and may be important for the cell-mediated spread.
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Affiliation(s)
- S Fais
- Institute of Virology, La Sapienza University, Rome, Italy
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Capobianchi MR, Serra C, Abbate I, Marongiu P, Castilletti C, Tilocca F, Dianzani F, Dolei A. Treatment of HIV-infected fibroblasts with human leukocyte antigen (HLA)-DR-inductive cytokines leads to infectious virions with newly acquired HLA-DR. AIDS 1994; 8:1731-3. [PMID: 7534091 DOI: 10.1097/00002030-199412000-00017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Abstract
We have studied the mechanism of IFN induction by HIV-1 in peripheral blood mononuclear cells (PBMC), using recombinant viral membrane glycoproteins as potential inducers. Whereas 8 nM HIVIIIB-derived gp120 resulted in IFN levels between 80 and 2000 IU/ml with PBMC from different donors, gp120 from the MN strain was not an inducer. Preincubation of HIVIIIB-gp120 with a monoclonal antibody (mAB) to its CD4 binding domain or of PBMC with a mAB to the gp120 binding domain of CD4 abolished IFN induction. Antibodies against the third extracellular domain of CD4 which did not block binding of gp120, however, were also inhibitory. Furthermore, several mABs to the third variable loop (V3) of HIVIIIB-gp120 also blocked IFN induction, suggesting an important role of V3 in this process. This was further supported by the inhibitory action of peptides homologous to complete or partial sequences of V3. We conclude that after binding of gp120 to its CD4 receptor the V3 loop can be positioned close to the membrane of the responder cells by bending of gp120-occupied CD4 at its hinge region between extracellular domains 2 and 3. As a result V3 is able to interact with a V3-specific "secondary receptor" on the membranes of these cells. We suggest that it is the latter interaction which triggers IFN induction.
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Affiliation(s)
- H Ankel
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee 53226
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Capobianchi MR, Fais S, Castilletti C, Gentile M, Ameglio F, Dianzani F. A simple and reliable method to detect cell membrane proteins on infectious human immunodeficiency virus type 1 particles. J Infect Dis 1994; 169:886-9. [PMID: 7907644 DOI: 10.1093/infdis/169.4.886] [Citation(s) in RCA: 58] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Identification of cell-derived molecules on infectious human immunodeficiency virus type 1 (HIV-1) particles may be helpful in investigating mechanisms of HIV infection and in vaccine studies. Some of these molecules were detected on HIV-1 virions in previous studies, but rather elaborate methods were used. The method presented here allows an extensive characterization of the cell surface molecules associated with HIV-1 by capturing virus particles on monoclonal antibodies to cell membrane antigens bound to plastic wells. Binding of infectious virus was assessed by adding permissive target cells (C8166) and determining viral replication. With this procedure, beta 2-microglobulin, HLA-DR, intercellular adhesion molecule-1, and leukocyte function antigen-1 were found on HIV-1 particles from laboratory strains and primary clinical isolates. In contrast, CD19, CD4, and CD8 molecules were not detected.
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Ameglio F, Capobianchi MR, Castilletti C, Cordiali Fei P, Fais S, Trento E, Dianzani F. Recombinant gp120 induces IL-10 in resting peripheral blood mononuclear cells; correlation with the induction of other cytokines. Clin Exp Immunol 1994; 95:455-8. [PMID: 7511078 PMCID: PMC1535081 DOI: 10.1111/j.1365-2249.1994.tb07018.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.2] [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: 01/25/2023] Open
Abstract
Immunological abnormalities present in HIV-1-infected individuals often reflect an imbalance of cytokine production. The HIV-1 gp120 has the ability to induce a number of cytokines, and to enhance immunoglobulin release by normal peripheral blood mononuclear cells (PBMC) in vitro, in the absence of IL-2 production and of lymphoproliferation. This study provides evidence that gp120 is a potent IL-10 inducer in normal PBMC cultures. The pattern of other cytokines induced by gp120 includes interferon-alpha (IFN-alpha) and IFN-gamma, tumour necrosis factor-alpha (TNF-alpha), IL-6, IL-1 alpha and -beta, and not IL-2 and IL-4. These findings further define the pattern of cytokine release induced by gp120 on human resting PBMC. Furthermore, the present findings roughly parallel those observed both in the sera of patients and in the mononuclear cells from HIV+ individuals early after infection, suggesting that gp120 could be a good candidate as one of the agents responsible for cytokine dysregulation observed in HIV-1-infected individuals.
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Affiliation(s)
- F Ameglio
- Institute S. Gallicano, University La Sapienza, Rome, Italy
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Capobianchi MR, Ameglio F, Cordiali Fei P, Castilletti C, Mercuri F, Fais S, Dianzani F. Coordinate induction of interferon alpha and gamma by recombinant HIV-1 glycoprotein 120. AIDS Res Hum Retroviruses 1993; 9:957-62. [PMID: 7904170 DOI: 10.1089/aid.1993.9.957] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.1] [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: 01/27/2023] Open
Abstract
Similarly to HIV-infected cells, recombinant HIV-1 glycoprotein 120 induces acid-labile interferon production in peripheral blood mononuclear cells from healthy donors. Acid lability of this interferon is due to the presence of both IFN-alpha and -gamma molecules. In fact, although not revealed by neutralization of antiviral activity with antibody to IFN-gamma, the presence of IFN-gamma was shown both immunoenzymatically and by detection of specific mRNA in gp120-stimulated cells. The source of IFN-gamma appears to be a T cell present in the CD4-enriched subpopulation. Cultures treated with monoclonal antibodies to the ICAM-1 and LFA-1 adhesion molecules showed an impaired release of both IFN types after gp120 stimulation, suggesting a crucial role of cell-to-cell interactions in the process leading to IFN production. Our data suggest that the HIV envelope glycoprotein could be responsible for the induction of endogenous IFN-alpha and -gamma observed in AIDS patients.
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