Protozoan parasites cause tremendous human suffering worldwide, but strategies for therapeutic intervention are limited. Recent studies illustrate that the paradigm of microbes as social organisms can be brought to bear on questions about parasite biology, transmission and pathogenesis. This review discusses recent work demonstrating adaptation of social behaviors by parasitic protozoa that cause African sleeping sickness and malaria. The recognition of social behavior and cell-cell communication as a ubiquitous property of bacteria has transformed our view of microbiology, but protozoan parasites have not generally been considered in this context. Works discussed illustrate the potential for concepts of sociomicrobiology to provide insight into parasite biology and should stimulate new approaches for thinking about parasites and parasite-host interactions.
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http://dx.doi.org/10.1016/j.mib.2011.09.012 | DOI Listing |
Parasit Vectors
December 2024
United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Centre, Animal Parasitic Diseases Laboratory, Beltsville, MD, 20705-2350, USA.
Background: Parasites in the apicomplexan genus Sarcocystis infect cattle worldwide. Assessing the economic importance of each such parasite species requires proper diagnosis. Sarcocystis cruzi, a thin-walled species, infects virtually all cattle.
View Article and Find Full Text PDFSci Rep
December 2024
Center for Global Health and Inter-Disciplinary Research, College of Public Health, University of South Florida, Tampa, FL, USA.
Successful transmission of Plasmodium falciparum from one person to another relies on the complete intraerythrocytic development of non-pathogenic sexual gametocytes infectious for anopheline mosquitoes. Understanding the genetic factors that regulate gametocyte development is vital for identifying transmission-blocking targets in the malaria parasite life cycle. Toward this end, we conducted a forward genetic study to characterize the development of gametocytes from sexual commitment to mature stage V.
View Article and Find Full Text PDFCharacterization of serological responses to Plasmodium falciparum (Pf) is of interest to understand disease burden and transmission dynamics; however, their interpretation is challenging. Dried blood spots from 30,815 participants aged 6 months to 15 years from the 2018 Nigeria HIV/AIDS Indicator and Impact Survey were analyzed by multiplex bead-based assay to measure immunoglobulin G (IgG) to Pf-stage-specific MSP-1, AMA-1, GLURPR0, LSA-1, and CSP. These IgG levels were analyzed by principal component analysis (PCA).
View Article and Find Full Text PDFInt J Parasitol Drugs Drug Resist
December 2024
Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Molecular Medicine Research Center, College of Pharmacy, Yanbian University, Yanji, 133002, Jilin Province, China. Electronic address:
Toxoplasma gondii, a neurotropic protozoan parasite, affects the central nervous system and causes various neurological disorders. Previous studies have demonstrated that Arctigenin (AG) exhibits anti-T. gondii activity and reduces depression-like behaviors induced by T.
View Article and Find Full Text PDFParasitol Res
December 2024
Department of Clinical Laboratory Sciences, School of Health Professions, Medical Branch, University of Texas, 301 University Blvd, Galveston, TX, 77555-0128, USA.
Naegleria fowleri is a free-living amoeba and the causative agent of Primary Amebic Meningoencephalitis (PAM), a rare yet almost always fatal disease that primarily affects children. While only 431 PAM cases have been reported worldwide, the southern states of the United States, including Texas, report the highest number of cases. Despite the high mortality of the disease, studies have identified antibodies to N.
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