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  • Title: Characterization of the leukemia inhibitory factor receptor in the goldfish (Carassius auratus).
    Author: Hanington PC, Belosevic M.
    Journal: Fish Shellfish Immunol; 2005 May; 18(5):359-69. PubMed ID: 15683914.
    Abstract:
    The cytokine leukemia inhibitory factor (LIF) and its receptor LIFR have been extensively characterized in mammals. LIF has been shown to mediate the proliferation, differentiation and activation of a number of cell types in various tissues. This paper reports on the identification of a novel LIFR isolated from goldfish (Carassius auratus) macrophages. Goldfish LIFR shares a 26% amino acid sequence identity with mammalian LIFR sequences; however it retains all of the conserved amino acid motifs that identify a functional LIFR such as the cytokine binding domains and the box-1 and box-2 motifs. The goldfish LIFR phylogenetically groups with the other identified LIFRs from human, mouse, rat and chicken, and it appears to be ancestral to the divergence of the oncostatin M receptor (OSMR). The tissue expression of goldfish LIFR is observed in the gill, kidney and brain as well as sorted goldfish macrophages which exhibit higher expression than monocytes and early progenitor cells.
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