Transferrin synthesized in cultured human fibroblasts is associated with tubulins and has iron binding capacity

Masakiyo Sakaguchi, Tadashi Kondo, Hong Pu, Masayoshi Namba

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In a previous report, using immunocytochemical and fluorescence-labeling techniques, we demonstrated that transferrin is synthesized in cultured human fibroblasts and that it is associated with tubulins in the cells. These morphological findings led us to attempt to elaborate those issues in more detail by biochemical methods. In this report, we were able to prove the association of transferrin produced in cells with tubulins. In addition, the transferrin associated with tubulins was found to bind to iron. These results suggest that endogenous transferrin plays a role in preventing damage caused by free radicals which can be induced by the interaction of iron with the hydrogen peroxide produced in cells.

Original languageEnglish
Pages (from-to)5-9
Number of pages5
JournalCell structure and function
Volume24
Issue number1
DOIs
Publication statusPublished - Apr 16 1999

Keywords

  • Human fibroblasts
  • Iron
  • Transferrin
  • Tubulin

ASJC Scopus subject areas

  • Physiology
  • Molecular Biology
  • Cell Biology

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