Adiponectin, a Fat Cell Product, Influences the Earliest Lymphocyte Precursors in Bone Marrow Cultures by Activation of the Cyclooxygenase-Prostaglandin Pathway in Stromal Cells

DOI PDF PubMed 被引用文献4件 オープンアクセス
  • Takafumi Yokota
    Immunobiology and Cancer Program, Oklahoma Medical Research Foundation , Oklahoma City, OK 73104
  • C S Reddy Meka
    Immunobiology and Cancer Program, Oklahoma Medical Research Foundation , Oklahoma City, OK 73104
  • Taku Kouro
    Immunobiology and Cancer Program, Oklahoma Medical Research Foundation , Oklahoma City, OK 73104
  • Kay L Medina
    Immunobiology and Cancer Program, Oklahoma Medical Research Foundation , Oklahoma City, OK 73104
  • Hideya Igarashi
    Immunobiology and Cancer Program, Oklahoma Medical Research Foundation , Oklahoma City, OK 73104
  • Masahiko Takahashi
    Department of Internal Medicine and Molecular Science, Graduate School of Medicine, Osaka University , Osaka ,
  • Kenji Oritani
    Department of Internal Medicine and Molecular Science, Graduate School of Medicine, Osaka University , Osaka ,
  • Tohru Funahashi
    Department of Internal Medicine and Molecular Science, Graduate School of Medicine, Osaka University , Osaka ,
  • Yoshiaki Tomiyama
    Department of Internal Medicine and Molecular Science, Graduate School of Medicine, Osaka University , Osaka ,
  • Yuji Matsuzawa
    Department of Internal Medicine and Molecular Science, Graduate School of Medicine, Osaka University , Osaka ,
  • Paul W Kincade
    Immunobiology and Cancer Program, Oklahoma Medical Research Foundation , Oklahoma City, OK 73104

書誌事項

公開日
2003-11
権利情報
  • https://academic.oup.com/pages/standard-publication-reuse-rights
DOI
  • 10.4049/jimmunol.171.10.5091
公開者
Oxford University Press (OUP)

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<jats:title>Abstract</jats:title> <jats:p>Adiponectin, an adipocyte-derived hormone, is attracting considerable interest as a potential drug for diabetes and obesity. Originally cloned from human s.c. fat, the protein is also found in bone marrow fat cells and has an inhibitory effect on adipocyte differentiation. The aim of the present study is to explore possible influences on lymphohematopoiesis. Recombinant adiponectin strongly inhibited B lymphopoiesis in long-term bone marrow cultures, but only when stromal cells were present and only when cultures were initiated with the earliest category of lymphocyte precursors. Cyclooxygenase inhibitors abrogated the response of early lymphoid progenitors to adiponectin in stromal cell-containing cultures. Furthermore, PGE2, a major product of cyclooxygenase-2 activity, had a direct inhibitory influence on purified hematopoietic cells, suggesting a possible mechanism of adiponectin action in culture. In contrast to lymphopoiesis, myelopoiesis was slightly enhanced in adiponectin-treated bone marrow cultures, and even when cultures were initiated with single lymphomyeloid progenitors. Finally, human B lymphopoiesis was also sensitive to adiponectin in stromal cell cocultures. These results suggest that adiponectin can negatively and selectively influence lymphopoiesis through induction of PG synthesis. They also indicate ways that adipocytes in bone marrow can contribute to regulation of blood cell formation.</jats:p>

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