Mitogenic response of adult rat olfactory ensheathing glia to four growth factors

Henglin Yan, Mary B Bunge, Patrick Wood, Giles W. Plant

Research output: Contribution to journalArticle

61 Citations (Scopus)

Abstract

Olfactory ensheathing glia (EG) from adult rat proliferate slowly in vitro without added mitogens. The potential future use of EG in transplantation within the central nervous system to improve neural repair is dependent on identifying mitogens that will effectively expand EG without altering their phenotype. The mitogenic effects of heregulin (HRG), fibroblast growth factor 2 (FGF-2), platelet-derived growth factor BB (PDGF-BB), insulin-like growth factor 1 (IGF-1), and forskolin (FSK) on cultured adult-derived rat EG were monitored by tritiated-thymidine labeling and p75 immunostaining. In serum-containing medium, HRG, FGF-2, PDGF-BB, IGF-1, and FSK were capable of stimulating EG proliferation, and the stimulation by these growth factors was potentiated by FSK. The combinations of HRG + FGF-2, HRG + PDGF-BB, HRG + IGF-1, FGF-2 + PDGF-BB, and FGF-2 + IGF-1 all promoted EG proliferation in an additive manner. In serum-free medium, HRG and FGF-2 were mitogenic, but PDGF-BB, IGF-1 and FSK were not; however, FSK potentiated the stimulation by HRG and FGF-2, and the combination of HRG + FGF-2 promoted EG proliferation in an additive manner. This new information will be useful for the design of protocols to achieve sufficient numbers of adult-derived EG for clinical purposes. This study also further establishes similarities between EG and Schwann cells.

Original languageEnglish
Pages (from-to)334-342
Number of pages9
JournalGLIA
Volume33
Issue number4
DOIs
StatePublished - Apr 23 2001

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Neuregulin-1
Neuroglia
Fibroblast Growth Factor 2
Intercellular Signaling Peptides and Proteins
Somatomedins
Colforsin
Mitogens
Schwann Cells
Serum-Free Culture Media
Thymidine
Central Nervous System
Transplantation
platelet-derived growth factor BB
Phenotype

Keywords

  • Cell culture
  • Ensheathing glia proliferation
  • Forskolin
  • Mitogens

ASJC Scopus subject areas

  • Immunology

Cite this

Mitogenic response of adult rat olfactory ensheathing glia to four growth factors. / Yan, Henglin; Bunge, Mary B; Wood, Patrick; Plant, Giles W.

In: GLIA, Vol. 33, No. 4, 23.04.2001, p. 334-342.

Research output: Contribution to journalArticle

Yan, Henglin ; Bunge, Mary B ; Wood, Patrick ; Plant, Giles W. / Mitogenic response of adult rat olfactory ensheathing glia to four growth factors. In: GLIA. 2001 ; Vol. 33, No. 4. pp. 334-342.
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