Cell Lines Derived from Retrovirus-Mediated Oncogene Transduction into Olfactory Epithelium Cultures

We describe the isolation and characterization of six immortal cell lines derived from primary cultures of olfactory epithelium (OE) purified from E15 mouse embryos. Cultured cells were immortalized using a replication-defective murine retrovirus containing the cDNA for human c-myc, in addition to a dominant selectable antibiotic resistance gene (neo). Cells that survived antibiotic selection and displayed process-bearing morphologies were expanded and analyzed for expression of molecular markers characteristic of olfactory receptor neurons, sustentacular cells, and olfactory ensheathing cells. Interestingly, all six cell lines expressed morphological and immunological properties of the ensheathing, or Schwann, cells of the olfactory nerve, but did not express markers characteristic of olfactory receptor neurons. Our results suggest that, while it is possible to generate immortalized OE cell lines using retrovirus-mediated oncogene transfer, there may be limitations to the types of cells that can be immortalized. In addition, we demonstrate the potential usefulness of immortalized OE cell lines for promoter-trap experiments to identify developmentally regulated genes. © 1993 Academic Press. All rights reserved

Mouse olfactory epithelium

This book brings together methods for preparing cultures from a diverse range of neural tissues and cells, from both the central and peripheral nervous systems of mammalian and avian species. Practical approach series, 165

Mouse olfactory epithelium

This book brings together methods for preparing cultures from a diverse range of neural tissues and cells, from both the central and peripheral nervous systems of mammalian and avian species. Practical approach series, 165

Genesis of olfactory receptor neurons in vitro: regulation of progenitor cell divisions by fibroblast growth factors.

Olfactory receptor neurons are produced continuously in mammalian olfactory epithelium in vivo, but in explant cultures neurogenesis ceases abruptly. We show that in vitro neurogenesis is prolonged by fibroblast growth factors (FGFs), which act in two ways. FGFs increase the likelihood that immediate neuronal precursors (INPs) divide twice, rather than once, before generating neurons; this action requires exposure of INPs to FGFs by early G1. FGFs also cause a distinct subpopulation of explants to generate large numbers of neurons continually for at least several days. The data suggest that FGFs delay differentiation of a committed neuronal transit amplifying cell (the INP) and support proliferation or survival of a rare cell, possibly a stem cell, that acts as a progenitor to INPs

Genesis of olfactory receptor neurons in vitro: regulation of progenitor cell divisions by fibroblast growth factors.

Olfactory receptor neurons are produced continuously in mammalian olfactory epithelium in vivo, but in explant cultures neurogenesis ceases abruptly. We show that in vitro neurogenesis is prolonged by fibroblast growth factors (FGFs), which act in two ways. FGFs increase the likelihood that immediate neuronal precursors (INPs) divide twice, rather than once, before generating neurons; this action requires exposure of INPs to FGFs by early G1. FGFs also cause a distinct subpopulation of explants to generate large numbers of neurons continually for at least several days. The data suggest that FGFs delay differentiation of a committed neuronal transit amplifying cell (the INP) and support proliferation or survival of a rare cell, possibly a stem cell, that acts as a progenitor to INPs

Generation, differentiation, and maturation of olfactory receptor neurons in vitro

Proceedings of the 11th International Symposium on Olfaction and Taste and of the 27th Japanese Symposium on Taste ... In compiling the proceedings of this conference into the book entitled “Olfaction and Taste XI”, the papers presented at ..