Molecular detection of Colpodella sp. and other tick-borne pathogens in ticks of ruminants, Italy

Jimale, Kassim Abdullahi; Bezerra-Santos, Marcos Antonio; Mendoza-Roldan, Jairo Alfonso; Latrofa, Maria Stefania; Baneth, Gad; Otranto, Domenico

doi:10.1016/j.actatropica.2024.107306

Acta Tropica

2024

DOI: 10.1016/j.actatropica.2024.107306

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Molecular detection of Colpodella sp. and other tick-borne pathogens in ticks of ruminants, Italy

Kassim Abdullahi Jimale,

Marcos Antonio Bezerra-Santos,

Jairo Alfonso Mendoza-Roldan

et al.

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Are Colpodella Species Pathogenic? Nutrient Uptake and Approaches to Diagnose Infections

Salti,

Sam-Yellowe

2024

Pathogens

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Colpodella species are free-living protists phylogenetically related to apicomplexans. Colpodella sp. have been detected in human and animal tissues, as well as in ticks and biting flies. The trophozoite and cyst stages of Colpodella species can be distinguished from stages of the prey Parabodo caudatus using Sam-Yellowe’s trichrome staining. Colpodella species obtain nutrients by attaching to their prey, aspirating the prey’s cytoplasmic contents into a posterior food vacuole and encysting. It is unclear whether both trophozoite and cyst stages are present in human and animal tissues. Molecular techniques have detected Colpodella species in human blood, cerebrospinal fluid, and in ticks and flies. However, no morphological information was reported to aid life-cycle stage identification of Colpodella species. This review discusses the increased reports of Colpodella species detection in animals and in arthropods and the need to identify stages present in human and animal tissues. We previously used Sam-Yellowe’s trichrome staining to identify life-cycle stages of Colpodella sp. In this review, we examine the reports of Colpodella species detection in human and animal tissues to determine whether the identification of Colpodella species represents true infections or contaminations of samples collected during routine surveillance of piroplasm infections in animals and arthropods. This review also aims to provide insights regarding Colpodella, nutrient uptake, and the survival of Colpodella sp. within humans, animals, and arthropods, as well as whether the attachment of trophozoites to cells occurs in tissues leading to myzocytosis and endocytosis.

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Are Colpodella Species Pathogenic? Nutrient Uptake and Approaches to Diagnose Infections

Salti,

Sam-Yellowe

2024

Pathogens

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Molecular detection of Colpodella sp. and other tick-borne pathogens in ticks of ruminants, Italy

Cited by 1 publication

References 13 publications

Are Colpodella Species Pathogenic? Nutrient Uptake and Approaches to Diagnose Infections

Are Colpodella Species Pathogenic? Nutrient Uptake and Approaches to Diagnose Infections

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