대한수의학회지 (Korean Journal of Veterinary Research)

  • 제53권4호
  • /
  • Pages.245-251
  • /
  • 2013
  • /
  • 2466-1384(pISSN)
  • /
  • 2466-1392(eISSN)
대한수의학회 (The Korean Society of Veterinary Science)
권호 표지
DOI QR코드

DOI QR Code

돼지 써코바이러스 2형과 돼지 생식기 호흡기 증후군 바이러스 감염에 따른 림프절 병변에 대한 병리학적 연구

Pathologic studies in lymph nodes of pigs infected with porcine circovirus type 2, porcine reproductive and respiratory syndrome virus

  • 정지열 (제주대학교 수의과대학, 수의과학연구소) ;
  • 김재훈 (제주대학교 수의과대학, 수의과학연구소)
  • Jung, Ji-Youl (College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University) ;
  • Kim, Jae-Hoon (College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University)
  • 투고 : 2013.07.18
  • 심사 : 2013.11.08
  • 발행 : 2013.12.31
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초록

Porcine circovirus type 2 (PCV2) and porcine reproductive and respiratory syndrome virus (PRRSV) have been suspected to have immunosuppressive effects on pigs. To investigate the correlation between these virus infection and the lesions of lymph nodes including sub-mandibular and inguinal lymph node, 44 pigs (PCV2 single, n = 14; PRRSV single, n = 10; PCV2/PRRSV, n = 14; negative control, n = 6) were examined by histopathology and immunohistochemistry. Histopathologically, granulomatous lymphadenitis characterized by lymphoid depletion with histiocytic cells infiltration was observed in PCV-2 single and PCV-2/PRRSV group. Immunohistochemically, there were significant reduction of B and T lymphocytes in lymph nodes of these groups, while the number of macrophages was increased. In only PRRSV infected group, germinal center hypertrophy and lymphoid necrosis were observed. Immunohistochemically, the number of CD3+ T lymphocytes was slightly increased. Severe lymphocytic depletion in PCV-2 infection-related lymph nodes might be associated with producing immunocompromised state in pig. Comparing with PCV-2 infected group, PRRSV produced minor effects on the changes in immune cell population in the lymph nodes of pigs. PRRSV may increase susceptibility of the disease in pigs by disruption of the first defense lines in target organs, such as the alveolar macrophages in lungs.

키워드

참고문헌

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