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Clinical Microbiology Reviews, July 2002, p. 374-389, Vol. 15, No. 3
0893-8512/02/$04.00+0     DOI: 10.1128/CMR.15.3.374-389.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.

Cultivation of Clinically Significant Hemoflagellates

Frederick L. Schuster^1* and James J. Sullivan²

Viral and Rickettsial Disease Laboratory, State of California Department of Health Services, Richmond, California,¹ Division of Parasitic Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia²

The hemoflagellates, Trypanosoma spp. and Leishmania spp., are causal agents of a number of parasitic diseases having a major impact on humans and domestic animals over vast areas of the globe. Among the diseases are some of the most pernicious and deadly of human afflictions: African sleeping sickness, Chagas' disease, kala-azar, and Oriental sore. The organisms have complex, pleomorphic life cycles typically involving a vertebrate and an invertebrate host, the latter serving as a vector. In the vertebrate host, they are primarily blood and tissue parasites. In their transition from one host to another, the hemoflagellates undergo morphological, physiological, and biochemical changes that facilitate their growth and subsequent transmission. A major goal in the study of the hemoflagellates has been the cultivation in vitro of both vertebrate and invertebrate stages of the organisms. The first types of media used in their cultivation, and still useful for establishment of cultures, were undefined and contained a complex of ingredients. These gave way to semidefined formulations which included tissue culture media as a base and, as a next step, addition of tissue culture cells as a feeder layer to promote parasite growth. More recently developed media are completely defined, having replaced the feeder cells with various supplements. Serum, a sometimes-variable component of the media, can be replaced by various serum substitutes. This review focuses on the hemoflagellates that infect humans, describing stages in the development of media leading to the fully defined formulations that are now available for the cultivation of many of these organisms.

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* Corresponding author. Mailing address: California Department of Health Services, Viral and Rickettsial Disease Laboratory, 850 Marina Bay Parkway, Richmond, CA 94804. Phone: (510) 307-8901. Fax: (510) 981-1220. E-mail: fschuste{at}dhs.ca.gov.

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Clinical Microbiology Reviews, July 2002, p. 374-389, Vol. 15, No. 3
0893-8512/02/$04.00+0     DOI: 10.1128/CMR.15.3.374-389.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.

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