Early-Onset Chronic Inflammatory Disease Associated with Maternal Microchimerism

Maternal microchimerism (mMc) refers to the presence of a small population of cells originating from the mother. Whether mMc leads to autoimmune responses in children remains controversial. We describe here an 11-year-old boy with persistent fever and elevated levels of C-reactive protein from infan...

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Main Authors: Tomoaki Ishikawa, Yoshihiko Sakurai, Tomohiro Takeda, Hiroshi Suzuki
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:Case Reports in Pediatrics
Online Access:http://dx.doi.org/10.1155/2012/323681
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author Tomoaki Ishikawa
Yoshihiko Sakurai
Tomohiro Takeda
Hiroshi Suzuki
author_facet Tomoaki Ishikawa
Yoshihiko Sakurai
Tomohiro Takeda
Hiroshi Suzuki
author_sort Tomoaki Ishikawa
collection DOAJ
description Maternal microchimerism (mMc) refers to the presence of a small population of cells originating from the mother. Whether mMc leads to autoimmune responses in children remains controversial. We describe here an 11-year-old boy with persistent fever and elevated levels of C-reactive protein from infancy onward. During infancy, the patient presented with high fever, skin rashes, and hepatic dysfunction. Careful examination including a liver biopsy failed to reveal the cause. At 4 years old, petechiae developed associated with thrombocytopenia and positive anti-dsDNA autoantibodies. Steroid pulse therapy was effective, but the effect of low-dose prednisone was insufficient. At age 9, an extensive differential diagnosis was considered especially for infantile onset autoinflammatory disorders but failed to make a definitive diagnosis. On admission, the patient exhibited short stature, hepatosplenomegaly, generalized superficial lymphadenopathy, and rashes. Laboratory findings revealed anemia, elevated levels of inflammation markers, and hypergammaglobulinemia. Serum complement levels were normal. Serum levels of IL-6 and B-cell activating factor were elevated. Viral infections were not identified. Although HLA typing revealed no noninherited maternal antigens in lymphocytes, female cells were demonstrated in the patient’s skin and lymph nodes, suggesting that maternal microchimerism might be involved in the pathogenesis of fever without source in infants.
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spelling doaj-art-2415d85dbb394fddad9cef4d0e2f00962025-02-03T06:00:30ZengWileyCase Reports in Pediatrics2090-68032090-68112012-01-01201210.1155/2012/323681323681Early-Onset Chronic Inflammatory Disease Associated with Maternal MicrochimerismTomoaki Ishikawa0Yoshihiko Sakurai1Tomohiro Takeda2Hiroshi Suzuki3Department of Pediatrics, Nara City Hospital, Nara 630-8305, JapanDepartment of Pediatrics, Nara Medical University School of Medicine, Kashihara 634-8521, JapanDepartment of Pediatrics, Nara Medical University School of Medicine, Kashihara 634-8521, JapanDepartment of Pediatrics, Nara City Hospital, Nara 630-8305, JapanMaternal microchimerism (mMc) refers to the presence of a small population of cells originating from the mother. Whether mMc leads to autoimmune responses in children remains controversial. We describe here an 11-year-old boy with persistent fever and elevated levels of C-reactive protein from infancy onward. During infancy, the patient presented with high fever, skin rashes, and hepatic dysfunction. Careful examination including a liver biopsy failed to reveal the cause. At 4 years old, petechiae developed associated with thrombocytopenia and positive anti-dsDNA autoantibodies. Steroid pulse therapy was effective, but the effect of low-dose prednisone was insufficient. At age 9, an extensive differential diagnosis was considered especially for infantile onset autoinflammatory disorders but failed to make a definitive diagnosis. On admission, the patient exhibited short stature, hepatosplenomegaly, generalized superficial lymphadenopathy, and rashes. Laboratory findings revealed anemia, elevated levels of inflammation markers, and hypergammaglobulinemia. Serum complement levels were normal. Serum levels of IL-6 and B-cell activating factor were elevated. Viral infections were not identified. Although HLA typing revealed no noninherited maternal antigens in lymphocytes, female cells were demonstrated in the patient’s skin and lymph nodes, suggesting that maternal microchimerism might be involved in the pathogenesis of fever without source in infants.http://dx.doi.org/10.1155/2012/323681
spellingShingle Tomoaki Ishikawa
Yoshihiko Sakurai
Tomohiro Takeda
Hiroshi Suzuki
Early-Onset Chronic Inflammatory Disease Associated with Maternal Microchimerism
Case Reports in Pediatrics
title Early-Onset Chronic Inflammatory Disease Associated with Maternal Microchimerism
title_full Early-Onset Chronic Inflammatory Disease Associated with Maternal Microchimerism
title_fullStr Early-Onset Chronic Inflammatory Disease Associated with Maternal Microchimerism
title_full_unstemmed Early-Onset Chronic Inflammatory Disease Associated with Maternal Microchimerism
title_short Early-Onset Chronic Inflammatory Disease Associated with Maternal Microchimerism
title_sort early onset chronic inflammatory disease associated with maternal microchimerism
url http://dx.doi.org/10.1155/2012/323681
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AT yoshihikosakurai earlyonsetchronicinflammatorydiseaseassociatedwithmaternalmicrochimerism
AT tomohirotakeda earlyonsetchronicinflammatorydiseaseassociatedwithmaternalmicrochimerism
AT hiroshisuzuki earlyonsetchronicinflammatorydiseaseassociatedwithmaternalmicrochimerism