{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,13]],"date-time":"2026-05-13T11:38:35Z","timestamp":1778672315005,"version":"3.51.4"},"reference-count":40,"publisher":"Portland Press Ltd.","issue":"4","license":[{"start":{"date-parts":[[2019,7,25]],"date-time":"2019-07-25T00:00:00Z","timestamp":1564012800000},"content-version":"vor","delay-in-days":384,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["portlandpress.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2018,8,31]]},"abstract":"<jats:p>During the study of host\u2013parasite relationships in taeniid parasite diseases, including cysticercosis and hydatidosis, reports have described the presence of host proteins in the cyst fluid and tissue of metacestodes. However, the fate or role of host elements inside the parasite remains barely explored. After the publication of genomes of four cestode species, it became clear that these organisms possess a limited biosynthetic capability. The initial goal of the present study was to determine if uptaken host proteins could be a source of essential amino acids for cysticerci. To track the utilization of uptaken proteins, we added metabolically labeled IgG-3H and GFP-3H to the culture medium of Taenia crassiceps cysticerci. Incorporation of labeled amino acid was evaluated by fluorography in cysticerci extracts. Our results showed that the use of uptaken proteins by cysticerci as a source of amino acids appeared negligible. Exploring alternative fates for the host proteins, proteomic analysis of the protein matrix in calcareous corpuscles was carried out. Since T. crassiceps does not contain calcareous corpuscles, proteomic analyses were performed in corpuscles of Taenia solium cysticerci. Our results demonstrated that host proteins represented approximately 70% of protein content in the calcareous corpuscles. The presence of the two major uptaken host proteins, namely albumin and IgG, was also demonstrated by Western blot in the matrix of corpuscles. Our findings strongly suggested that the uptake and disposal of host proteins involve calcareous corpuscles, expanding the physiological role of these mineral concretions to a far more important level than previously proposed.<\/jats:p>","DOI":"10.1042\/bsr20180636","type":"journal-article","created":{"date-parts":[[2018,6,19]],"date-time":"2018-06-19T13:56:27Z","timestamp":1529416587000},"update-policy":"https:\/\/doi.org\/10.1042\/crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Fate of uptaken host proteins in <i>Taenia solium<\/i> and <i>Taenia crassiceps<\/i> cysticerci"],"prefix":"10.1042","volume":"38","author":[{"given":"Jeanette","family":"Flores-Bautista","sequence":"first","affiliation":[{"name":"Department of Immunology, Institute for Biomedical Research, Universidad Nacional Aut\u00f3noma de M\u00e9xico, Ciudad de M\u00e9xico, M\u00e9xico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jos\u00e9","family":"Navarrete-Perea","sequence":"additional","affiliation":[{"name":"Department of Immunology, Institute for Biomedical Research, Universidad Nacional Aut\u00f3noma de M\u00e9xico, Ciudad de M\u00e9xico, M\u00e9xico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gladis","family":"Fragoso","sequence":"additional","affiliation":[{"name":"Department of Immunology, Institute for Biomedical Research, Universidad Nacional Aut\u00f3noma de M\u00e9xico, Ciudad de M\u00e9xico, M\u00e9xico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ana","family":"Flisser","sequence":"additional","affiliation":[{"name":"Department of Parasitology, School of Medicine, Universidad Nacional Aut\u00f3noma de M\u00e9xico, Ciudad de M\u00e9xico, M\u00e9xico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xavier","family":"Sober\u00f3n","sequence":"additional","affiliation":[{"name":"Instituto Nacional de Medicina Gen\u00f3mica, Ciudad de M\u00e9xico, M\u00e9xico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Juan\u00a0P.","family":"Laclette","sequence":"additional","affiliation":[{"name":"Department of Immunology, Institute for Biomedical Research, Universidad Nacional Aut\u00f3noma de M\u00e9xico, Ciudad de M\u00e9xico, M\u00e9xico"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"288","published-online":{"date-parts":[[2018,7,6]]},"reference":[{"key":"2021111619031055600_B1","doi-asserted-by":"publisher","first-page":"79","DOI":"10.1111\/j.1365-3024.2010.01257.x","article-title":"Taenia crassiceps as a model for Taenia solium and the S3Pvac vaccine","volume":"33","author":"Sciutto","year":"2011","journal-title":"Parasite Immunol."},{"key":"2021111619031055600_B2","doi-asserted-by":"publisher","first-page":"969","DOI":"10.1139\/z62-086","article-title":"Studies on biology of Taenia Crassiceps (Zeder, 1800) Rudolphi, 1810 (Cestoda)","volume":"40","author":"Freeman","year":"1962","journal-title":"Can. 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