当前位置： SCI文献检索 > INTERNATIONAL JOURNAL OF PEDIATRIC OTORHINOLARYNGOLOGY期刊下所有文献 > Detection of Epstein-Barr virus and subsets of lymphoid cells in adenoid tissue of children under 2 years of age.

Detection of Epstein-Barr virus and subsets of lymphoid cells in adenoid tissue of children under 2 years of age.

Abstract：

:Epstein-Barr virus (EBV) has been closely associated with undifferentiated nasopharyngeal carcinoma (NPC) and T/NK nasal non Hodgkin lymphoma. Nevertheless, the presence of EBV in non neoplastic lymphoid tissue of the nasopharynx has been rarely investigated. In a previous study by our group, using in situ hybridization to detect EBV in adenoids of children (2-13 years old) resected because of nasal obstruction due to hypertrophy, we found EBV genome in 72% of the cases. It was now intended to study the frequency of EBV expression in adenoids from children that underwent surgical removal, belonging to a lower age group (1-2 years old). It was also intended to establish which lymphoid subsets are involved in this infection. Adenoidal paraffin sections from 21 patients aged 1-2 years old (mean 1.6 years), 15 males and six females were submitted to double labeling: in situ hybridization with EBER 1/2 probes to detect EBV and immunohistochemistry to determine the lymphocyte typing of EBV-positive cells (CD20 for B-lymphocytes, CD3 for T-lymphocytes and CD56 and CD57 for NK-cells). Among 21 patients, seven showed positive lymphoid cells for EBV (33%). In almost all cases, EBV-positive cells were also CD20-positive. Some EBV-positive cells showed no labeling with any of the lymphoid markers, but in no instance they were positive for CD3, CD56 or CD57. This study confirms the preferential infection of B-lymphocytes by EBV, which in some instances can down regulate the expression of CD20.

journal_name

Int J Pediatr Otorhinolaryngol

journal_title

International journal of pediatric otorhinolaryngology

authors

Endo LH,Vassallo J,Sakano E,Brousset P

doi

10.1016/s0165-5876(02)00213-6

subject

Has Abstract

pub_date

2002-12-02 00:00:00

pages

223-6

issue

3

eissn

0165-5876

issn

1872-8464

pii

S0165587602002136

journal_volume

66

pub_type

杂志文章

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