{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T02:32:16Z","timestamp":1790649136037,"version":"4.1.0"},"reference-count":135,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2023,5,29]],"date-time":"2023-05-29T00:00:00Z","timestamp":1685318400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Cell. Infect. Microbiol."],"abstract":"<jats:p>A variety of intestinal-derived culture systems have been developed to mimic <jats:italic>in vivo<\/jats:italic> cell behavior and organization, incorporating different tissue and microenvironmental elements. Great insight into the biology of the causative agent of toxoplasmosis, Toxoplasma gondii, has been attained by using diverse <jats:italic>in vitro<\/jats:italic> cellular models. Nonetheless, there are still processes key to its transmission and persistence which remain to be elucidated, such as the mechanisms underlying its systemic dissemination and sexual differentiation both of which occur at the intestinal level. Because this event occurs in a complex and specific cellular environment (the intestine upon ingestion of infective forms, and the feline intestine, respectively), traditional reductionist <jats:italic>in vitro<\/jats:italic> cellular models fail to recreate conditions resembling <jats:italic>in vivo<\/jats:italic> physiology. The development of new biomaterials and the advances in cell culture knowledge have opened the door to a next generation of more physiologically relevant cellular models. Among them, organoids have become a valuable tool for unmasking the underlying mechanism involved in <jats:italic>T. gondii<\/jats:italic> sexual differentiation. Murine-derived intestinal organoids mimicking the biochemistry of the feline intestine have allowed the generation of pre-sexual and sexual stages of <jats:italic>T. gondii<\/jats:italic> for the first time <jats:italic>in vitro<\/jats:italic>, opening a window of opportunity to tackling these stages by \u201cfelinizing\u201d a wide variety of animal cell cultures. Here, we reviewed intestinal <jats:italic>in vitro<\/jats:italic> and ex vivo models and discussed their strengths and limitations in the context of a quest for faithful models to <jats:italic>in vitro<\/jats:italic> emulate the biology of the enteric stages of <jats:italic>T. gondii<\/jats:italic>.<\/jats:p>","DOI":"10.3389\/fcimb.2023.1134471","type":"journal-article","created":{"date-parts":[[2023,5,29]],"date-time":"2023-05-29T04:17:43Z","timestamp":1685333863000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":16,"title":["Exploring Toxoplasma gondii\u00b4s Biology within the Intestinal Epithelium: intestinal-derived models to unravel sexual differentiation"],"prefix":"10.3389","volume":"13","author":[{"given":"Florencia","family":"Sena","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Saira","family":"Cancela","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mariela","family":"Bollati-Fogol\u00edn","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Romina","family":"Pagotto","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mar\u00eda E.","family":"Francia","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2023,5,29]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"4641","DOI":"10.4049\/jimmunol.178.7.4641","article-title":"IL-1\u03b2 causes an increase in intestinal epithelial tight junction permeability","volume":"178","author":"Al-Sadi","year":"2007","journal-title":"J. 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