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Studying Cryptosporidium Infection in 3D Tissue-derived Human Organoid Culture Systems by Microinjection
Published on: September 14, 2019
Cellular biology of Cryptosporidium parvum
1Parasitology Laboratory and the Department of Medicine, San Francisco General Hospital, University of California at San Francisco, San Francisco, CA 94110, USA.
Abstract:
With the emergence of Cryptosporidium parvum as a major pathogen encountered in human and veterinary clinical practice, a need for increased knowledge of the cellular- and immuno-biology of this Apicomplexan parasite has developed. Initial work has used paradigms taken from other Apicomplexans, especially Plasmodium, Toxoplasma and Eimeria, as a starting point. In this article, Carolyn Petersen discusses the observation that in these organisms, molecular targets of antibodies (which have protective value, in vivo, against disease) have frequently been located in the apical complex or on the surface of the invasive stages of the parasite and appear to mediate biologically crucial processes including motility, attachment to the host cell, modification of the host membrane, and entry into the host cell. Molecular-biology approaches to the study of enzymes and of structural proteins which mediate motility are also considered. Invasion mechanisms, biochemical pathways and motility may involve molecules that will prove susceptible to immunotherapeutic or chemotherapeutic interruption of cryptosporidiosis.
Insights
Cryptosporidium parvum is a significant pathogen. Understanding its cellular biology and immune interactions may reveal targets for new treatments against cryptosporidiosis.
Area of Science:
- Parasitology
- Immunology
- Cellular Biology
Background:
- Cryptosporidium parvum is a major human and veterinary pathogen.
- Knowledge of its cellular and immuno-biology is crucial for developing effective treatments.
- Existing research on related Apicomplexan parasites (Plasmodium, Toxoplasma, Eimeria) provides a foundation.
Purpose of the Study:
- To review the cellular and immuno-biology of Cryptosporidium parvum.
- To identify potential molecular targets for therapeutic intervention.
- To explore invasion mechanisms, biochemical pathways, and motility.
Main Methods:
- Review of existing literature on Apicomplexan parasites.
- Discussion of antibody targets in invasive stages.
- Consideration of molecular-biology approaches to study parasite proteins.
Main Results:
- Protective antibodies in related parasites target the apical complex and surface of invasive stages.
- These targets are involved in critical processes like motility, attachment, host cell modification, and entry.
- Molecular targets mediating motility, invasion, and biochemical pathways are potential therapeutic sites.
Conclusions:
- Identifying molecular targets in Cryptosporidium parvum is key to controlling cryptosporidiosis.
- These targets may be susceptible to immunotherapeutic or chemotherapeutic interruption.
- Further research into parasite biology can lead to novel treatment strategies.
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