Prevalence of Porcine Endogenous Retrovirus in Domestic Pigs in Japan and Its Potential Infection in Dogs Xenotransplanted with Porcine Pancreatic Islet Cells

Journal of Veterinary Medical Science

Kazuya EDAMURA¹  Koko NASU²  Yukiko IWAMI²  Hiroyuki OGAWA¹  Nobuo SASAKI³  Ryohei NISHIMURA³  Hisako OHGAWARA² 

[1] Laboratories of Veterinary Emergency Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo;Division of Cell Replacement and Regenerative Medicine, Medical Research Institute, School of Medicine, Tokyo Women's Medical University;Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo

关键词: canine;    diabetes;    islet;    porcine endogenous retrovirus (PERV);    xenotransplantation;   

DOI  :  10.1292/jvms.66.129

学科分类：兽医学

来源: Japanese Society of Veterinary Science

【 摘 要 】

References(20)Cited-By(11)The prevalence of porcine endogenous retrovirus (PERV) proviral DNA among various pig breeds raised in Japan was investigated by polymerase chain reaction (PCR). Moreover, potential infection of PERV was investigated by PCR and reverse transcriptase-polymerase chain reaction (RT-PCR) in experimentally induced diabetic dogs (n=5) implanted with the diffusion chamber type bio-artificial endocrine pancreas (Bio-AEP) containing porcine pancreatic endocrine (PE) cells. No immunosupplessant was used after the transplantation. PERV gag, pol, env-A and env-B genes were detected in any pigs examined. In two of three Landrace breeds, env-C gene was absent. PERV proviral DNAs and viral RNAs were also detected from the cultured porcine PE-cells. In the peripheral blood mononuclear cells and the spleen obtained at 6, 30, 32, 36, 79 weeks of xenotransplantation in dogs, however, no evidence of microchimerism, infection and viremia were confirmed. These results suggested that the risk of PERV infection through xenotransplantation of Bio-AEP containing porcine islet cells without immunosuppressants may be quite low.

【 授权许可】

Unknown