Applied Microscopy

  • 제37권2호
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  • Pages.135-142
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  • 2007
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  • 2287-5123(pISSN)
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  • 2287-4445(eISSN)
한국현미경학회 (Korean Society of Microscopy)
권호 표지

방사선 조사선량에 따른 생쥐 난소의 TUNEL 염색반응에 관한 형태학적 연구

Morphological Study on the TUNEL Reaction of Mouse Ovary by X-ray Irradiation

  • 윤철호 (동남보건대학 방사선과) ;
  • 장병수 (한서대학교 보건학부 피부미용학과)
  • 발행 : 2007.06.30
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초록

본 연구는 6 MeV LINAC에서 발생한 X-선을 생쥐 생체에 조사한 후 난소에서 난포의 형태적 변화 양상과 난포의 세포자연사가 일어나는 과정을 TUNEL 염색방법을 이용하여 광학현미경으로 관찰하였다. 정상난포와 퇴화난포 및 방사선이 조사된 난포에서 세포예정사가 발생하는 것을 확인하기 위해서 TUNEL 염색을 실시한 결과, 정상난소의 퇴화난포에서 양성반응을 보이는 과립층세포들은 갈색을 띠고 있었고, 핵은 응축되어 나타났다. 그러나, 정상난포에서는 양성반응이 나타나지 않았다. X-선을 조사한 난소의 난포는 TUNEL 염색에 강한 양성반응이 나타났고, 600 cGy의 X-선 조사에서 난모세포는 이미 세포예정사가 진행되어 파괴되었음을 확인할 수 있었다. 그리고 난포막을 형성하고 있는 난막세포의 핵들도 양성반응으로 나타나, 갈색으로 염색이 되었으며, 수질의 결합조직세포들의 핵도 갈색으로 염색되어 관찰되었다. 또한, 대부분의 세포들은 세포예정사가 진행되어 있으며, apoptotic body들이 난포 내에 산재되어 있었다. 이 시기의 난소조직의 전반적인 염색도는 저선량의 X-선 조사에서보다 더 현저히 강한 염색성이 나타났다.

This research investigated morphological changes of ovarian follicle according to dose of irradiation when adult mice were exposed to X-rays from 6 MeV LINAC. At day 3 after irradiation of 200 cGy, 400 cGy and 600 cGy X-ray to the hole body of mice, the ovaries collected and stained with TUNEL. The normal follicles and atretic follicles were identified to apoptosis by the staining with TUNEL. In the atretic follicles of the normal ovary, the apoptotic bodies were well appeared and stained brown color. Almost of the follicles following irradiation are stained with TUNEL, but the sensitivity of reaction is weaker than that in irradiation of 400 cGy and 600 cGy X-ray. The granulosa cells of the radiated normal follicle by 400 cGV are shown brown color. In this stage, the nucleus of granulosa cells in the atrectic follicles are condensed and picknotic feature. The size of the radiated follicle by 600 cGy are decreased than the normal follicles. The atropic follicles are filled with apoptotic bodies which change of granulosa cells and theca cells by influence of X-ray. All of cell in the follicles are strongly positive stained with TUNEL by irradiation of 600 cGy.

키워드

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