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Controlled exposure of mice can be used to induce Type 2 inflammation-dependent<jats:italic>S<\/jats:italic>.<jats:italic>mansoni<\/jats:italic>pulmonary hypertension (PH). We sought to determine if another common species,<jats:italic>S<\/jats:italic>.<jats:italic>japonicum<\/jats:italic>, can also cause experimental PH.<\/jats:p><\/jats:sec><jats:sec id=\"sec002\"><jats:title>Methods<\/jats:title><jats:p>Schistosome eggs were obtained from infected mice, and administered by intraperitoneal sensitization followed by intravenous challenge to experimental mice, which underwent right heart catheterization and tissue analysis.<\/jats:p><\/jats:sec><jats:sec id=\"sec003\"><jats:title>Results<\/jats:title><jats:p><jats:italic>S<\/jats:italic>.<jats:italic>japonicum<\/jats:italic>sensitized and challenged mice developed PH, which was milder than that following<jats:italic>S<\/jats:italic>.<jats:italic>mansoni<\/jats:italic>sensitization and challenge. The degree of pulmonary vascular remodeling and Type 2 inflammation in the lungs was similarly proportionate. Cross-sensitization revealed that antigens from either species are sufficient to sensitize for intravenous challenge with either egg, and the degree of PH severity depended on primarily the species used for intravenous challenge. Compared to a relatively uniform distribution of<jats:italic>S<\/jats:italic>.<jats:italic>mansoni<\/jats:italic>eggs,<jats:italic>S<\/jats:italic>.<jats:italic>japonicum<\/jats:italic>eggs were observed in clusters in the lungs.<\/jats:p><\/jats:sec><jats:sec id=\"sec004\"><jats:title>Conclusions<\/jats:title><jats:p><jats:italic>S<\/jats:italic>.<jats:italic>japonicum<\/jats:italic>can induce experimental PH, which is milder than that resulting from comparable<jats:italic>S<\/jats:italic>.<jats:italic>mansoni<\/jats:italic>exposure. This difference may result from the distribution of eggs in the lungs, and is independent of which species is used for sensitization. This result is consistent with the clearer association between<jats:italic>S<\/jats:italic>.<jats:italic>mansoni<\/jats:italic>infection and the development of schistosomiasis-associated PAH in humans.<\/jats:p><\/jats:sec>","DOI":"10.1371\/journal.pntd.0010343","type":"journal-article","created":{"date-parts":[[2022,4,13]],"date-time":"2022-04-13T17:53:45Z","timestamp":1649872425000},"page":"e0010343","update-policy":"https:\/\/doi.org\/10.1371\/journal.pntd.corrections_policy","source":"Crossref","is-referenced-by-count":10,"title":["Experimental Schistosoma japonicum-induced pulmonary hypertension"],"prefix":"10.1371","volume":"16","author":[{"given":"Biruk","family":"Kassa","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael 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