Chai JY, Lin A, Shin EH, Oh MD, Han ET, Nan HW, Lee SH. Laboratory passage and characterization of an isolate of Toxoplasma gondii from an ocular patient in Korea.
THE KOREAN JOURNAL OF PARASITOLOGY 2003;
41:147-54. [PMID:
12972728 PMCID:
PMC2717499 DOI:
10.3347/kjp.2003.41.3.147]
[Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2003] [Accepted: 06/27/2003] [Indexed: 11/23/2022]
Abstract
Toxoplasma gondii tachyzoites were isolated from the blood of an ocular patient, and have been successfully passaged in the laboratory, for over a year, by peritoneal inoculation in mice. The isolated parasite was designated the Korean Isolate-1 (KI-1) and its characteristics were compared with those of the RH strain, a wellknown virulent strain originating from a child who suffered from encephalitis. The morphology, pathogenicity, infectivity and cell culture characteristics of the KI-1 were similar to those of the RH strain. Both RH and KI-1 antigens were detected by an anti-T. gondii monoclonal antibody (mAb), Tg563, against the major surface protein SAG1 (30 kDa), whereas no reaction was observed against an anti-Neospora caninum mAb, 12B4. The KI-1 was confirmed as an isolate of T. gondii. A long-term laboratory maintenance and characterization of a local T. gondii isolate is reported for the first time in the Republic of Korea.
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