{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,12]],"date-time":"2026-03-12T10:57:02Z","timestamp":1773313022962,"version":"3.50.1"},"reference-count":110,"publisher":"Oxford University Press (OUP)","issue":"5","license":[{"start":{"date-parts":[[2019,3,1]],"date-time":"2019-03-01T00:00:00Z","timestamp":1551398400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2019,3,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Infections during pregnancy can expose the fetus to microbial Ags, leading to inflammation that affects B cell development. Prenatal fetal immune priming may have an important role in infant acquisition of pathogen-specific immunity. We examined plasma proinflammatory biomarkers, the proportions of various B cell subsets, and fetal priming to tetanus vaccination in cord blood from human United States and Kenyan neonates. United States neonates had no identified prenatal infectious exposures, whereas Kenyan neonates examined had congenital CMV or mothers with prenatal HIV or Plasmodium falciparum or no identified infectious exposures. Kenyan neonates had higher levels of IP-10, TNF-\u03b1, CRP, sCD14, and BAFF than United States neonates. Among the Kenyan groups, neonates with prenatal infections\/infectious exposures had higher levels of cord blood IFN-\u03b3, IL-7, sTNFR1, and sTNFR2 compared with neonates with no infectious exposures. Kenyan neonates had greater proportions of activated memory B cells (MBC) compared with United States neonates. Among the Kenyan groups, HIV-exposed neonates had greater proportions of atypical MBC compared with the other groups. Although HIV-exposed neonates had altered MBC subset distributions, detection of tetanus-specific MBC from cord blood, indicative of fetal priming with tetanus vaccine given to pregnant women, was comparable in HIV-exposed and non\u2013HIV-exposed neonates. These results indicate that the presence of infections during pregnancy induces fetal immune activation with inflammation and increased activated MBC frequencies in neonates. The immunologic significance and long-term health consequences of these differences warrant further investigation.<\/jats:p>","DOI":"10.4049\/jimmunol.1801024","type":"journal-article","created":{"date-parts":[[2019,1,23]],"date-time":"2019-01-23T20:59:43Z","timestamp":1548277183000},"page":"1465-1478","source":"Crossref","is-referenced-by-count":13,"title":["HIV, Cytomegalovirus, and Malaria Infections during Pregnancy Lead to Inflammation and Shifts in Memory B Cell Subsets in Kenyan Neonates"],"prefix":"10.1093","volume":"202","author":[{"given":"Kee Thai","family":"Yeo","sequence":"first","affiliation":[{"name":"Center for Global Health and Diseases, Case Western Reserve University , Cleveland, OH 44106"},{"name":"Department of Pediatrics, Rainbow Babies and Children\u2019s Hospital, Case Western Reserve University , Cleveland, OH 44106"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Paula","family":"Embury","sequence":"additional","affiliation":[{"name":"Center for Global Health and Diseases, Case Western Reserve University , Cleveland, OH 44106"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5384-275X","authenticated-orcid":false,"given":"Timothy","family":"Anderson","sequence":"additional","affiliation":[{"name":"Center for Global Health and Diseases, Case Western Reserve University , Cleveland, OH 44106"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peter","family":"Mungai","sequence":"additional","affiliation":[{"name":"Center for Global Health and Diseases, Case Western Reserve University , Cleveland, OH 44106"},{"name":"Division of Vector Borne and Neglected Tropical Diseases, Ministry of Public Health and Sanitation , Nairobi 00200 ,","place":["Kenya"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0144-1089","authenticated-orcid":false,"given":"Indu","family":"Malhotra","sequence":"additional","affiliation":[{"name":"Center for Global Health and Diseases, Case Western Reserve University , Cleveland, OH 44106"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3873-7860","authenticated-orcid":false,"given":"Christopher","family":"King","sequence":"additional","affiliation":[{"name":"Center for Global Health and Diseases, Case Western Reserve University , Cleveland, OH 44106"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6390-634X","authenticated-orcid":false,"given":"James","family":"Kazura","sequence":"additional","affiliation":[{"name":"Center for Global Health and Diseases, Case Western Reserve University , Cleveland, OH 44106"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Arlene","family":"Dent","sequence":"additional","affiliation":[{"name":"Center for Global Health and Diseases, Case Western Reserve University , Cleveland, OH 44106"},{"name":"Department of Pediatrics, Rainbow Babies and Children\u2019s Hospital, Case Western Reserve University , Cleveland, OH 44106"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2019,3,1]]},"reference":[{"key":"2025030417560839800_r1","doi-asserted-by":"crossref","first-page":"553","DOI":"10.1038\/nri1394","article-title":"Neonatal adaptive immunity comes of age","volume":"4","author":"Adkins","year":"2004","journal-title":"Nat. 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