Skip to main content
Log in

The effects of an anti-mitotic drug, bleomycin, on glial repair in an insect central nervous system

  • Published:
Cell and Tissue Research Aims and scope Submit manuscript

Summary

The DNA-binding drug, bleomycin, has a profound effect on neural repair following selective glial disruption by ethidium bromide. The contribution of the granule-containing cells (which normally appear in the early stages of repair) is greatly reduced, the restoration of the blood-brain barrier is delayed and the ultrastructural organization of the reorganising perineurium is dramatically changed. The aberrant perineurial structure and function observed in the presence of bleomycin are postulated to result from the effects of the drug on haemocytes which, together with endogenous reactive cells, contribute to the normal process of glial repair.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  • Adrian EK, Schelper RL (1981) Microglia, monocytes and macro-phages. In: E.A. Vidrio, F. Federoff (eds) Glial and neuronal cell biology. Alan Liss Inc., New York, pp 113–124

    Google Scholar 

  • Blakemore WF (1982) Ethidium bromide induced demyelination in the spinal cord of the cat. Neuropathol Appl Neurobiol 8:365–375

    Google Scholar 

  • Brockes JP (1984) Mitogenic growth factors and nerve dependence of limb regeneration. Science 225:1280–1287

    Google Scholar 

  • Crossley AC (1975) The cytophysiology of insect blood. Adv Insect Physiol 11:117–221

    Google Scholar 

  • Howes EA, Leech CA (1985) Organ culture of adult cockroach CNS: ultrastructural and physiological characteristics. Tissue and Cell 17:000–000

    Google Scholar 

  • Kuo MT (1981) Preferential damage of active chromatin by bleomycin. Cancer Res 41:2439–2443

    Google Scholar 

  • Lane NJ, Skaer H.leB. (1980) Intercellular junctions in insect tissues. Adv Ins Physiol 15:35–213

    Google Scholar 

  • Lane NJ, Treherne JE (1980) Functional organisation of arthropod neuroglia. In: Locke M, Smith DS (eds) Insect biology in the future. Academic Press, London

    Google Scholar 

  • Latov N, Nilaver G, Zimmerman EA, Johnson WG, Silverman A, Defendini R, Cote L (1979) Fibrillary astrocytes proliferate in response to brain injury. Dev Biol 72:381–384

    Google Scholar 

  • Leech CA (1984) Effects of ethidium bromide on cells of the cockroach central nervous system. J Cell Sci 70:17–24

    Google Scholar 

  • Ludwin SK (1984) Proliferation of mature oligodendrocytes after trauma to the central nervous system. Nature 308:274–275

    CAS  PubMed  Google Scholar 

  • Morgese VJ, Elliott EJ, Muller KJ (1983) Microglial movement to sites of nerve lesion in the leech CNS. Brain Res 272:166–170

    Google Scholar 

  • Nelson JW, Tinoco I Jr (1984) Intercalation of ethidium ion into DNA and RNA oligonucleotides. Biopolymers 23:213–233

    Google Scholar 

  • Raff MC, Miller RH, Noble M (1983) A glial progenitor cell that develops in vitro into an astrocyte or an oligodendrocyte depending of culture medium. Nature 303:390–396

    CAS  PubMed  Google Scholar 

  • Sausville EA, Horwitz SB (1979) A mechanism for the degradation of DNA by bleomycin. In: Busch H, Crooke ST, Daskal Y (eds) Effects of drugs on the cell nucleus. Academic Press, New York London, pp 181–205

    Google Scholar 

  • Scharrer B (1972) Cytophysiological features of hemocytes in cockroaches. Z Zellforsch 129:301–319

    Google Scholar 

  • Schofield PK, Treherne JE (1984) Localization of the blood-brain barrier in an insect: electrical model and analysis. J Exp Biol 109:319–331

    Google Scholar 

  • Schofield PK, Swales LS, Treherne JE (1984) Potentials associated with the blood-brain barrier of an insect: recording from identified neuroglia. J Exp Biol 109:307–318

    Google Scholar 

  • Smith PJS, Leech CA, Treherne JE (1984) Glial repair in an insect central nervous system: effects of selective glial disruption. J Neurosci 4(11): 2698–2711

    Google Scholar 

  • Smith PJS, Howes EA, Leech CA, Treherne JE (1985) Haemocyte contribution to glial repair in an insect central nervous system. Cell and Tissue Res 243:367–374

    Google Scholar 

  • Treherne JE, Harrison JB, Treherne JM, Lane NJ (1984) Glial repair in an insect central nervous system: effects of surgical lesioning. J Neurosci 4(11): 2689–2697

    Google Scholar 

  • Yajima K, Suzuki K (1979) Demyelination and remyelination in the rat CNS following ethidium bromide injection. Lab Invest 41:385–392

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Treherne, J.E., Howes, E.A., Leech, C.A. et al. The effects of an anti-mitotic drug, bleomycin, on glial repair in an insect central nervous system. Cell Tissue Res. 243, 375–384 (1986). https://doi.org/10.1007/BF00251054

Download citation

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00251054

Key words

Navigation