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J Infect. 2010 May;60(5):360-70. doi: 10.1016/j.jinf.2010.02.006. Epub 2010 Feb 12.

Parvovirus B19 infection associated with Hashimoto's thyroiditis in adults.

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  • 1State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital, Fourth Military Medical University, No. 17, Changle West Road, Xi'an 710032, PR China.

Abstract

OBJECTIVE:

Parvovirus B19 is a common human pathogen, which has been linked to autoimmune diseases recently. The aim of the study is to evaluate whether B19 is involved in adult Hashimoto's thyroiditis (HT).

METHODS:

Eighty-six thyroid tissues from the adult patients with a spectrum of thyroid disorders were examined for B19 DNA and capsid protein by nested PCR, in-situ hybridization and immunohistochemistry. The presence of viral DNA in HT epithelium was studied by laser-capture microdissection and sequencing of PCR products. The expressions of nuclear factor-kappaB (NF-kappaB) and interleukin-6 were investigated by immunohistochemistry.

RESULTS:

B19 DNA was significantly present in HT tissues by both PCR (29/32, 90.6%) and in-situ hybridization (23/32, 71.9%, all p < 0.01) compared with normal thyroid tissue (7/16, 43.8%; 2/16, 12.5%). Laser-capture microdissection further confirmed this difference. B19 capsid protein in HT group was significantly higher than that in all the control groups (p < 0.01), and the expression of NF-kappaB and interleukin-6 in HT tissues was up-regulated. NF-kappaB was well co-localized with B19 protein in thyroid epithelia by double-labeling immunofluorescence and confocal microscopy.

CONCLUSIONS:

The presence of B19 nuclear acid and viral protein was significantly common in HT tissues and it suggested a possible role of B19 in adult HT.

PMID:
20153771
DOI:
10.1016/j.jinf.2010.02.006
[PubMed - indexed for MEDLINE]
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