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Ryazanskaya AG, Yunusov AS. [Hypertrophy of adenoid vegetation in modern treatment conditions]. Vestn Otorinolaringol 2022; 87:70-74. [PMID: 35274895 DOI: 10.17116/otorino20228701170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
We present data on the hypertrophy of adenoid vegetation in modern treatment conditions. Actual aspects of the etiology of hypertrophy of adenoid vegetation and chronic adenoiditis are discussed, and mechanisms of the formation of local immunity and the effect of immunomodulating therapy are also described. Data on the morphology of adenoids, immunity condition after exposure to modern drugs and the rationality of treatment in frequently ill children are presented.
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Affiliation(s)
- A G Ryazanskaya
- National Medical Research Center for Otorhinolaryngology, Moscow, Russia
| | - A S Yunusov
- National Medical Research Center for Otorhinolaryngology, Moscow, Russia
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Yang L, Liu G, Li Y, Pan Y. The emergence of tumor-infiltrating lymphocytes in nasopharyngeal carcinoma: Predictive value and immunotherapy implications. Genes Dis 2021; 9:1208-1219. [PMID: 35873027 PMCID: PMC9293699 DOI: 10.1016/j.gendis.2021.07.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 07/26/2021] [Accepted: 07/27/2021] [Indexed: 11/09/2022] Open
Abstract
The clinical study of nasopharyngeal carcinoma (NPC) often reveals a large number of lymphocytes infiltrating the primary tumor site. As an important part of the tumor microenvironment, tumor-infiltrating lymphocytes (TILs) do not exist alone but as a complex multicellular population with high heterogeneity. TILs play an extremely significant role in the occurrence, development, invasion and metastasis of NPC. The latest research shows that they participate in tumorigenesis and treatment, and the composition, quantity, functional status and distribution of TILs subsets have good predictive value for the prognosis of NPC patients. TILs are an independent prognostic factor for TNM stage and significantly correlated with better prognosis. Additionally, adoptive immunotherapy using anti-tumor TILs has achieved good results in a variety of solid tumors including NPC. This review evaluates recent clinical and preclinical studies of NPC, summarizes the role of TILs in promoting and inhibiting tumor growth, evaluates the predictive value of TILs, and explores the potential benefits of TILs-based immunotherapy in the treatment of NPC.
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Prates MCM, Tamashiro E, Proenca-Modena JL, Criado MF, Saturno TH, Oliveira AS, Buzatto GP, Jesus BLS, Jacob MG, Carenzi LR, Demarco RC, Massuda ET, Aragon D, Valera FCP, Arruda E, Anselmo-Lima WT. The Relationship between Colonization by Moraxella catarrhalis and Tonsillar Hypertrophy. THE CANADIAN JOURNAL OF INFECTIOUS DISEASES & MEDICAL MICROBIOLOGY = JOURNAL CANADIEN DES MALADIES INFECTIEUSES ET DE LA MICROBIOLOGIE MEDICALE 2018; 2018:5406467. [PMID: 30515253 PMCID: PMC6236706 DOI: 10.1155/2018/5406467] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 07/11/2018] [Indexed: 11/30/2022]
Abstract
We sought to investigate the prevalence of potentially pathogenic bacteria in secretions and tonsillar tissues of children with chronic adenotonsillitis hypertrophy compared to controls. Prospective case-control study comparing patients between 2 and 12 years old who underwent adenotonsillectomy due to chronic adenotonsillar hypertrophy to children without disease. We compared detection of Streptococcus pneumoniae, Haemophilus influenzae, Staphylococcus aureus, Pseudomonas aeruginosa, and Moraxella catarrhalis by real-time PCR in palatine tonsils, adenoids, and nasopharyngeal washes obtained from 37 children with and 14 without adenotonsillar hypertrophy. We found high frequency (>50%) of Haemophilus influenzae, Streptococcus pneumoniae, Moraxella catarrhalis, and Pseudomonas aeruginosa in both groups of patients. Although different sampling sites can be infected with more than one bacterium and some bacteria can be detected in different tissues in the same patient, adenoids, palatine tonsils, and nasopharyngeal washes were not uniformly infected by the same bacteria. Adenoids and palatine tonsils of patients with severe adenotonsillar hypertrophy had higher rates of bacterial coinfection. There was good correlation of detection of Moraxella catarrhalis in different sampling sites in patients with more severe tonsillar hypertrophy, suggesting that Moraxella catarrhalis may be associated with the development of more severe hypertrophy, that inflammatory conditions favor colonization by this agent. Streptococcus pneumoniae, Staphylococcus aureus, Haemophilus influenzae, and Moraxella catarrhalis are frequently detected in palatine tonsils, adenoids, and nasopharyngeal washes in children. Simultaneous detection of Moraxella catarrhalis in adenoids, palatine tonsils, and nasopharyngeal washes was correlated with more severe tonsillar hypertrophy.
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Affiliation(s)
- Mirela C. M. Prates
- Department of Ophthalmology, Otorhinolaryngology, Head and Neck Surgery, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto, SP 14049-900, Brazil
| | - Edwin Tamashiro
- Department of Ophthalmology, Otorhinolaryngology, Head and Neck Surgery, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto, SP 14049-900, Brazil
| | - José L. Proenca-Modena
- Department of Cell Biology, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto, SP 14049-900, Brazil
- Virology Research Center, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto, SP 14049-900, Brazil
- Department of Genetics, Evolution and Bioagents, Institute of Biology, University of Campinas, Campinas, SP 13083-970, Brazil
| | - Miriã F. Criado
- Department of Cell Biology, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto, SP 14049-900, Brazil
| | - Tamara H. Saturno
- Department of Ophthalmology, Otorhinolaryngology, Head and Neck Surgery, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto, SP 14049-900, Brazil
| | - Anibal S. Oliveira
- Department of Cell Biology, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto, SP 14049-900, Brazil
| | - Guilherme P. Buzatto
- Department of Ophthalmology, Otorhinolaryngology, Head and Neck Surgery, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto, SP 14049-900, Brazil
| | - Bruna L. S. Jesus
- Department of Cell Biology, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto, SP 14049-900, Brazil
| | - Marcos G. Jacob
- Department of Ophthalmology, Otorhinolaryngology, Head and Neck Surgery, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto, SP 14049-900, Brazil
| | - Lucas R. Carenzi
- Department of Ophthalmology, Otorhinolaryngology, Head and Neck Surgery, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto, SP 14049-900, Brazil
| | - Ricardo C. Demarco
- Department of Ophthalmology, Otorhinolaryngology, Head and Neck Surgery, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto, SP 14049-900, Brazil
| | - Eduardo T. Massuda
- Department of Ophthalmology, Otorhinolaryngology, Head and Neck Surgery, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto, SP 14049-900, Brazil
| | - Davi Aragon
- Department of Pediatrics, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto, SP 14049-900, Brazil
| | - Fabiana C. P. Valera
- Department of Ophthalmology, Otorhinolaryngology, Head and Neck Surgery, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto, SP 14049-900, Brazil
| | - Eurico Arruda
- Department of Cell Biology, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto, SP 14049-900, Brazil
- Virology Research Center, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto, SP 14049-900, Brazil
| | - Wilma T. Anselmo-Lima
- Department of Ophthalmology, Otorhinolaryngology, Head and Neck Surgery, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto, SP 14049-900, Brazil
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Levina AS, Babachenko IV, Vozhik AA, Kvetnaya AS. [Persistent infections in the children presenting with chronic ENT diseases: the potential of etiotropic therapy]. Vestn Otorinolaringol 2015; 80:46-50. [PMID: 26525472 DOI: 10.17116/otorino201580546-50] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The objective of the present study that involved 176 children at the age varying from 2 to 12 years presenting with chronic ENT diseases was etiological diagnostics and etiotropic therapy of these pathologies taking into consideration the duration of the disease of less than one year (n=72), from 1 to 2 years (n=54), and over 2 years (n=50). The bacteriological method was employed to identify microflora from the upper respiratory tract and the molecular-biological methods for the detection of Epstein-Barr virus DNA, cytomegalovirus, and 6 types of human herpes virus in the blood and saliva. All the children were treated with the recombinant interferon preparations given for 1-1.5 months. For 41% of the children this treatment was combined with antibacterial therapy followed by immunocorrective therapy with interferon inducers (in 79.4% of the patients) or bacterial lysates (20.6%). The study revealed the predominant role of types 4, 5, and 6 type herpes viruses in the development of chronic ENT pathologies in the children with the gradual lowering of activity of these infections over 2 years. Staphylococcus aureus and Streptococcus pyogenes as well as fungi of the genus Candida were the commonest bacterial and fungal pathogenic agents isolated from the naso- and oropharynx of the children suffering from chronic ENT pathology.The effectiveness of etiotropic therapy was shown to decrease with time, from 78% during 1 year after the onset of the disease to 30% within the next 2 years.
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Affiliation(s)
- A S Levina
- Research Institute of Childhood Infections, Russian Federal Medico-Biological Agency, St. Petersburg, Russia, 195022; St.-Petersburg State Pediatric Medical University, Russian Ministry of Health, St. Petersburg, Russia, 194100
| | - I V Babachenko
- Research Institute of Childhood Infections, Russian Federal Medico-Biological Agency, St. Petersburg, Russia, 195022; St.-Petersburg State Pediatric Medical University, Russian Ministry of Health, St. Petersburg, Russia, 194100
| | - A A Vozhik
- Research Institute of Childhood Infections, Russian Federal Medico-Biological Agency, St. Petersburg, Russia, 195022
| | - A S Kvetnaya
- Research Institute of Childhood Infections, Russian Federal Medico-Biological Agency, St. Petersburg, Russia, 195022
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Sahiner F, Gümral R, Yildizoğlu Ü, Babayiğit MA, Durmaz A, Yiğit N, Saraçli MA, Kubar A. Coexistence of Epstein-Barr virus and Parvovirus B19 in tonsillar tissue samples: quantitative measurement by real-time PCR. Int J Pediatr Otorhinolaryngol 2014; 78:1288-93. [PMID: 24882454 DOI: 10.1016/j.ijporl.2014.05.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2014] [Revised: 05/03/2014] [Accepted: 05/06/2014] [Indexed: 12/31/2022]
Abstract
OBJECTIVE In this study, we aimed to investigate the presence and copy number of six different viruses in tonsillar tissue samples removed surgically because of chronic recurrent tonsillitis or chronic obstructive tonsillar hypertrophy. METHODS In total, 56 tissue samples (tonsillar core) collected from 44 children and 12 adults were included in this study. The presence of viruses was investigated using a new TaqMan-based quantitative real-time PCR assay. RESULTS Of the 56 tissue samples, 67.9% (38/56) were positive for at least one of the six viruses. Epstein-Barr virus was the most frequently detected virus, being found in 53.6% (30/56), followed by human Parvovirus B19 21.4% (12/56), human adenovirus 12.5% (7/56), human Cytomegalovirus 5.4% (3/56), BK polyomavirus 1.8% (1/56), and Herpes simplex virus 1.8% (1/56). Precancerous or cancerous changes were not detected in the tonsillar tissue samples by pathologic examination, whereas lymphoid hyperplasia was observed in 24 patients. In contrast to other viruses, B19 virus was present in high copy number in tonsillar tissues. The rates of EBV and B19 virus with high copy number (>500.000 copies/ml) were higher in children than in adults, and a positive relationship was also found between the presence of EBV and the presence of B19 virus with high copy number (P=0.037). CONCLUSIONS It is previously reported that some viral agents are associated with different chronic tonsillar pathologies. In the present study, the presence of B19 virus in tonsillar core samples was investigated quantitatively for the first time, and our data suggests that EBV infections could be associated with B19 virus infections or could facilitate B19 virus replication. However, further detailed studies are needed to clarify this observation.
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Affiliation(s)
- Fatih Sahiner
- Division of Medical Virology, Department of Medical Microbiology, Gulhane Military Medical Academy, Ankara, Turkey.
| | - Ramazan Gümral
- Department of Medical Microbiology, Gulhane Military Medical Academy, Ankara, Turkey.
| | - Üzeyir Yildizoğlu
- Department of Otorhinolaryngology, Gulhane Military Medical Academy, Ankara, Turkey.
| | | | - Abdullah Durmaz
- Department of Otorhinolaryngology, Gulhane Military Medical Academy, Ankara, Turkey.
| | - Nuri Yiğit
- Department of Medical Pathology, Gulhane Military Medical Academy, Ankara, Turkey.
| | - Mehmet Ali Saraçli
- Department of Medical Microbiology, Gulhane Military Medical Academy, Ankara, Turkey.
| | - Ayhan Kubar
- Division of Medical Virology, Department of Medical Microbiology, Gulhane Military Medical Academy, Ankara, Turkey.
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Xue XC, Chen XP, Yao WH, Zhang Y, Sun GB, Tan XJ. Prevalence of human papillomavirus and Epstein-Barr virus DNA in Chinese children with tonsillar and/or adenoidal hypertrophy. J Med Virol 2014; 86:963-7. [PMID: 24615954 DOI: 10.1002/jmv.23894] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/09/2014] [Indexed: 11/10/2022]
Abstract
Tonsillar and adenoidal hypertrophy are prevalent otolaryngologic disorders in children, but their pathogenesis is largely unknown. The presence of human papillomavirus (HPV) and Epstein-Barr virus (EBV) DNA in 146 tonsil and/or adenoid tissue specimens from 104 Chinese children with tonsillar and/or adenoidal hypertrophy were screened using flow-through hybridization gene-chip technology and real-time fluorescence-based quantitative PCR. Then, the relationships between the prevalence of the viruses and other clinical characteristics of tonsillar and/or adenoidal hypertrophy were analyzed. No patient had HPV DNA. EBV DNA was detected in 19/42 (45.2%) tonsil tissues and 72/104 (69.2%) adenoid tissue specimens (P < 0.05). EBV DNA was not related to the patients' age, gender, disease course, or nationality, but children positive for EBV were less likely to snore; 14/15 (93.3%) patients who did not snore and 59/89 (66.3%) patients who snored were EBV positive. EBV DNA, but not HPV DNA was detected in Chinese children with tonsillar and/or adenoidal hypertrophy. Adenoid tissues might more susceptible than tonsil tissues to EBV infection. In addition, EBV infection did not aggravate snoring in patients with tonsillar and/or adenoidal hypertrophy.
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Affiliation(s)
- Xiao-cheng Xue
- Postgraduate Education College, Ningxia Medical University, Yinchuan, China
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High frequency of Epstein-Barr virus–infected lymphocytes in pilonidal cysts. Hum Pathol 2012; 43:2241-6. [DOI: 10.1016/j.humpath.2012.03.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2012] [Revised: 03/14/2012] [Accepted: 03/21/2012] [Indexed: 11/21/2022]
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Shapiro NL, Guan-Zhong Tang C, Bhattacharyya N. Association between epstein-barr virus seroconversion and immunohistochemical changes in tonsils of pediatric solid organ transplant recipients. Laryngoscope 2011; 121:1718-25. [DOI: 10.1002/lary.21871] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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The correlation between EBV viral load in the palatine tonsils of patients with recurrent tonsillitis and concurrent serum titers of VCA–IgG. Eur Arch Otorhinolaryngol 2009; 267:143-8. [DOI: 10.1007/s00405-009-0988-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2008] [Accepted: 04/23/2009] [Indexed: 10/20/2022]
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Mizrahi S, Yefenof E, Gross M, Attal P, Ben Yaakov A, Goldman-Wohl D, Maly B, Stern N, Katz G, Gazit R, Sionov RV, Mandelboim O, Chaushu S. A phenotypic and functional characterization of NK cells in adenoids. J Leukoc Biol 2007; 82:1095-105. [PMID: 17675561 DOI: 10.1189/jlb.0407205] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Adenoids are part of the MALT. In the present study, we analyzed cell surface markers and cytolytic activity of adenoidal NK (A-NK) cells and compared them with NK cells derived from blood of the same donors (B-NK). NK cells comprised 0.67% (0.4-1.2%) of the total lymphoid population isolated from adenoids. The majority (median=92%) of the A-NK cells was CD56(bright)CD16(-). A-NK cells were characterized by the increased expression of activation-induced receptors. NKp44 was detected on >60%, CD25 on >40%, and HLA-DR on >50% of freshly isolated A-NK cells. Functional assays indicated that the cytotoxic machinery of A-NK is intact, and sensitive target cells are killed via natural cytotoxicity receptors, such as NKG2D. Carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1; CD66) expression was up-regulated in 23% (median) of the A-NK cells by IL-2 activation but unchanged in B-NK cells. CEACAM1 inhibited the A-NK killing of target cells. CXCR4 was expressed on more than 40% A-NK cells prior to activation. Its ligand, CXCL12, was found in endothelial cells of the capillaries within the adenoid and in cells of the epithelial lining. In addition, A-NK cells migrated in vitro toward a gradient of CXCL12 in a dose-responsive manner, suggesting a role for this chemokine in A-NK cell recruitment and trafficking. We conclude that the A-NK cells are unique in that they display an activated-like phenotype and are different from their CD16(-) B-NK cell counterparts. This phenotype presumably reflects the chronic interaction of A-NK cells with antigens penetrating the body through the nasal route.
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MESH Headings
- Adenoids/immunology
- Adenoids/metabolism
- Adenoids/pathology
- Antigens, CD/metabolism
- CD56 Antigen/metabolism
- Cell Adhesion Molecules/metabolism
- Cell Movement
- Cell Survival
- Chemokine CXCL12/metabolism
- Child
- Cytotoxicity, Immunologic
- Endothelium, Vascular/cytology
- Endothelium, Vascular/metabolism
- GPI-Linked Proteins
- Humans
- Interleukin-2/metabolism
- Killer Cells, Natural/immunology
- Killer Cells, Natural/metabolism
- Killer Cells, Natural/pathology
- NK Cell Lectin-Like Receptor Subfamily K
- Natural Cytotoxicity Triggering Receptor 2
- Phenotype
- Receptors, IgG/metabolism
- Receptors, Immunologic/metabolism
- Receptors, Natural Killer Cell
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Affiliation(s)
- Sa'ar Mizrahi
- Lautenberg Center of General and Tumor Immunology, Hebrew University-Hadassah School of Medicine, Jerusalem, Israel
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Chagas CA, Endo LH, Dos-Santos WLC, Pinto GA, Sakano E, Brousset P, Vassallo J. Is there a relationship between the detection of human herpesvirus 8 and Epstein-Barr virus in Waldeyer's ring tissues? Int J Pediatr Otorhinolaryngol 2006; 70:1923-7. [PMID: 16899303 DOI: 10.1016/j.ijporl.2006.06.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2006] [Revised: 06/28/2006] [Accepted: 06/28/2006] [Indexed: 11/23/2022]
Abstract
OBJECTIVE Human herpesvirus 8 (HHV-8) and Epstein-Barr virus (EBV) are human pathogens associated to a number of neoplasms, including tumors of the Waldeyer's ring. Both viruses have been previously detected by in situ methods in tonsils and adenoids from children. HHV-8 was found in 6.8% of the cases and EBV in about one third of the cases. As they belong to the same gamma-herpesvirus subfamily and share some biological characteristics, it is of medical interest to further explore their possible relationship in the Waldeyer's ring, an issue not yet addressed in the specialized literature. The purpose of the present study is to compare the presence of EBV by in situ hybridization (ISH) in tonsils and adenoids from children up to 14 years of age in cases previously shown to be positive and negative for HHV-8. METHODS Paraffin wax-embedded sections consisting of 38 tonsils and two adenoids from 40 patients were analyzed. HHV-8 was detected by ISH, using the T1-1 probe for the viral mRNA. EBV was also detected by ISH, using the EBER probe. Both probes and the detection systems were provided by Novocastra. RESULTS HHV-8 was detected in 19 tonsils and one adenoid. The other 19 tonsils and one adenoid taken from the HHV-8-negative group were selected by pairing age and gender of patients with the HHV-8-positive group. In both groups EBV was detected in 13 cases and was negative in other 7. CONCLUSION Although both viruses are related in many aspects, some biological and epidemiological features differ. This is reflected in the present results, as EBV is similarly detected in the groups negative and positive for HHV-8, favoring different mechanisms of spread.
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Affiliation(s)
- Cristiano Aparecido Chagas
- Laboratory of Experimental Pathology, Centro de Assistência Integral à Saúde da Mulher, State University of Campinas (UNICAMP), São Paulo, Brazil
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Chagas CA, Endo LH, Sakano E, Pinto GA, Brousset P, Vassallo J. Detection of herpesvirus type 8 (HHV8) in children's tonsils and adenoids by immunohistochemistry and in situ hybridization. Int J Pediatr Otorhinolaryngol 2006; 70:65-72. [PMID: 15979160 DOI: 10.1016/j.ijporl.2005.04.030] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2005] [Accepted: 04/14/2005] [Indexed: 01/27/2023]
Abstract
OBJECTIVE Human herpesvirus 8 (HHV8) has been associated with multicentric Castleman's disease, Kaposi's sarcoma and effusion non-Hodgkin's lymphoma. Epidemiological studies have shown seropositivity in variable proportions of populations. It seems to be sexually transmitted among adults and through oral contact among children. The virus has been demonstrated in desquamating oral epithelial cells, but there is no report on its presence in the Waldeyer's ring. The purpose of the present study is to detect HHV8 in tonsils and adenoids from children up to 20 years of age in which these organs had been surgically removed due to hypertrophy, using immunohistochemistry and in situ hybridization. METHODS Paraffin wax-embedded sections consisting of 181 tonsils and 162 adenoids from 293 patients were analyzed. HHV8 was detected by immunohistochemistry (IHC) using the anti-LNA1 antibody (Novocastra) and the LSAB+ detection system (Dako). For the in situ hybridization (ISH), the T1-1 probe for the viral mRNA and the detection system used were provided by Novocastra. RESULTS In 20 cases (6.83%), HHV8 was detected in cells morphologically characterized as lymphoid. In three of them epithelial cells were also positive. In 19 cases, the virus was detected in tonsils and in just 1 case in an adenoid. In all 20 cases detection was possible by ISH, whereas in only 2 of them there was a concomitant positivity by IHC. CONCLUSION Our data support the oral route of contamination by HHV8 in children, in whom tonsils and adenoids may harbor the virus. It is found especially in tonsils and only rarely in adenoids. In these organs, ISH is the method of choice to detect this virus, probably due to the small amount of viral proteins.
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Affiliation(s)
- Cristiano Aparecido Chagas
- Department of Anatomical Pathology, Faculty of Medical Sciences, State University of Campinas (UNICAMP), PO Box 6111, CEP 13083-970, Campinas, SP, Brazil
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Vassallo J, Camargo LAD, Chagas CA, Pinto GA, Endo LH. Search for Herpesvirus 1 and 2 by in situ hybridization in tonsils and adenoids. Int J Pediatr Otorhinolaryngol 2005; 69:345-9. [PMID: 15733593 DOI: 10.1016/j.ijporl.2004.10.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2004] [Revised: 10/11/2004] [Accepted: 10/13/2004] [Indexed: 10/25/2022]
Abstract
OBJECTIVE Herpes simplex virus (HSV) has been described as cause of acute tonsillitis. It has also been found in nasopharyngeal florid lymphoid infiltrate, mostly composed of CD4+, CD56+ T-cells, simulating lymphoma. In spite of its widespread prevalence in latent form, to the best of our knowledge no study is available on in situ detection of HSV in chronically hyperplastic nasopharyngeal lymphoid tissue. The purpose of the present study was to search for the presence of HSV 1 and 2 in 21 adenoids and 15 tonsils from children (2-12 years of age) in which these organs had been surgically removed due to hypertrophy. METHODS Paraffin wax-embedded sections from the 36 cases were submitted to the in situ hybridization technique, using the biotinilated probe to Herpes simplex virus 1 and 2 (Pan Path, Amsterdam) and the Rembrandt Universal DISH & HRP Detection Kit (Pan Path, Amsterdam). Positive control consisted of a previously tested Herpes infected lung. RESULTS In none of the 36 cases studied were positive nuclei detected in adenoid and tonsils, either in lymphoid, in stroma or in epithelial cells, as those seen in the positive control. CONCLUSION HSV does not seem to be implied in tonsil or adenoid chronic lymphoid hyperplasia. These organs do not seem to harbor the virus latently, or the amount of virus is too low to be detected without amplification methods.
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Affiliation(s)
- José Vassallo
- Department of Anatomical Pathology, Faculty of Medical Sciences, State University of Campinas (UNICAMP), P.O. Box 6111, CEP 13083-970, Campinas, SP, Brazil.
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