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. 2023 Sep-Oct;70(5):e12978.
doi: 10.1111/jeu.12978. Epub 2023 Jun 1.

Identification and validation of novel Blastocystis subtype ST41 in a Colombian patient undergoing colorectal cancer screening

Carolina Hernández-Castro  1   2 , Jenny G Maloney  3 , Sonia P Agudelo-López  2 , Miguel A Toro-Londoño  2 , Jorge H Botero-Garcés  2 , María C Orozco  2 , Yulieth C Quintero-Quinchia  2 , Juan C Correa-Cote  4 , Alejandro Múnera-Duque  4 , Juan C Ricaurte-Ciro  4 , Luis I Londoño-Álvarez  4 , René M Escobar  4 , Pamela C Köster  1 , Sergio Sánchez  5 , David Carmena  1   6 , Mónica Santín  3
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Identification and validation of novel Blastocystis subtype ST41 in a Colombian patient undergoing colorectal cancer screening

Carolina Hernández-Castro et al. J Eukaryot Microbiol. 2023 Sep-Oct.

Abstract

Blastocystis sp. is among the most frequent intestinal protists identified in humans globally. However, characterization of Blastocystis subtype diversity in humans is ongoing. We report here the identification of novel Blastocystis subtype ST41 in a Colombian patient undergoing colorectal cancer screening involving colonoscopy and fecal testing (microscopy, culture, PCR). The full-length ssu rRNA gene sequence of the protist was generated using MinION long-read sequencing technology. The validity of the novel subtype was confirmed via phylogenetic and pairwise distance analyses of the full-length ST41 sequence and all other valid subtypes. The study provides reference material essential for conducting subsequent experimental studies.

Keywords: MinION; ST41; human; molecular epidemiology; small subunit ribosomal RNA gene; subtype.

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References

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