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Epilepsy Res. 2016 Oct;126:119-25. doi: 10.1016/j.eplepsyres.2016.07.008. Epub 2016 Jul 27.

Elevated expression of human papillomavirus antigen in brain tissue of patients with Rasmussen's encephalitis.

Author information

1
Department of Neurosurgery, Beijing Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China; Beijing Key Laboratory of Epilepsy, Beijing 100093, China; Center of Epilepsy, Beijing Institute for Brain Disorders, Beijing 100093, China.
2
Department of Neurosurgery, Beijing Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China; Beijing Key Laboratory of Epilepsy, Beijing 100093, China.
3
Center of Epilepsy, Beijing Institute for Brain Disorders, Beijing 100093, China; School of Basic Medical Science, Capital Medical University, Beijing 100069, China.
4
School of Basic Medical Science, Capital Medical University, Beijing 100069, China. Electronic address: yswang@ccmu.edu.cn.
5
Department of Neurosurgery, Beijing Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China; Beijing Key Laboratory of Epilepsy, Beijing 100093, China; Center of Epilepsy, Beijing Institute for Brain Disorders, Beijing 100093, China. Electronic address: luangm3@163.com.

Abstract

OBJECTS:

To investigate the expression of human papillomavirus (HPV)-specific antigen in the brain tissue of patients with Rasmussen's Encephalitis (RE) and its possible link to the clinical manifestation of RE.

METHODS:

The correlation between RE and HPV antigen expression in brain tissue sections was investigated using immunohistochemical (IHC) staining, pathological examination, MRI and clinical manifestations.

RESULTS:

HPV antigen expression was elevated in three out of four patients with RE, whereas there were no detectable HPV antigens in six control patients. Significant staining for HPV antigen was located mainly around or in the nucleus and cytoplasm of neurons. Among these RE patients, three with elevated expression of HPV antigens had obvious hemisphere atrophy, whereas the patient with negative staining for HPV antigens had mild atrophy.

CONCLUSIONS:

Elevated expression of HPV antigens was observed in the brain tissue of RE patients, which may correlate with hemisphere atrophy. Thus, our results may suggest that HPV infection or being a carrier of HPV may play a role in the initiation and progression of RE.

KEYWORDS:

Epilepsia partialis continua (EPC); Hemisphere atrophy; Hemispherectomy; Human papillomavirus (HPV); Immunohistochemical staining (IHC); Rasmussen’s encephalitis

[Indexed for MEDLINE]

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