Androgen regulation of programmed death of normal and malignant prostatic cells

John Tod Isaacs, P. I. Lundmo, R. Berges, P. Martikainen, N. Kyprianou, H. F. English

Research output: Contribution to journalArticle

Abstract

Androgen-dependent normal prostatic glandular cells and androgen-dependent prostatic cancer cells can be induced to undergo cell death after androgen ablation. This death does not require the cells to proliferate and occurs as an energy-dependent process collectively referred to as 'programmed cell death' in which the cells actively commit 'suicide.' Associated with this programmed cell death pathway is the enhanced expression of a series of genes and the fragmentation of the genomic DNA into nucleosomal oligomers. This genomic DNA fragmentation is the irreversible commitment step in the death of the cell and results from activation of Ca2+/Mg2+-dependent endonuclease activity within the cell nucleus. This activation is due to sustained elevation of intracellular free Ca2+ (Ca(i)) induced after androgen ablation. Metastatic prostatic cancer within an individual patient is heterogeneous, including both androgen-dependent and -independent cancer cells. Thus, androgen ablation is rarely curative since it only induces the programmed death of the androgen-dependent cancer cells without activating this pathway in the androgen-dependent cancer cells within the patient. Androgen- independent prostatic cancer cells do not activate this death process after androgen ablation, since this does not induce a sustained increase in Ca(i). A new approach to treat androgen-independent prostatic cancer cells has focused on the use of chemotherapeutic agents to induce a sustained elevation in Ca(i) is maintained, even androgen-independent prostatic cancer cells undergo programmed cell death.

Original languageEnglish (US)
Pages (from-to)457-464
Number of pages8
JournalJournal of Andrology
Volume13
Issue number6
StatePublished - 1992
Externally publishedYes

Fingerprint

Androgens
Castration-Resistant Prostatic Neoplasms
Cell Death
DNA Fragmentation
Prostatic Neoplasms
Neoplasms
Endonucleases
Cell Nucleus
Suicide

Keywords

  • apoptosis
  • programmed cell death
  • prostatic cell death

ASJC Scopus subject areas

  • Endocrinology

Cite this

Isaacs, J. T., Lundmo, P. I., Berges, R., Martikainen, P., Kyprianou, N., & English, H. F. (1992). Androgen regulation of programmed death of normal and malignant prostatic cells. Journal of Andrology, 13(6), 457-464.

Androgen regulation of programmed death of normal and malignant prostatic cells. / Isaacs, John Tod; Lundmo, P. I.; Berges, R.; Martikainen, P.; Kyprianou, N.; English, H. F.

In: Journal of Andrology, Vol. 13, No. 6, 1992, p. 457-464.

Research output: Contribution to journalArticle

Isaacs, JT, Lundmo, PI, Berges, R, Martikainen, P, Kyprianou, N & English, HF 1992, 'Androgen regulation of programmed death of normal and malignant prostatic cells', Journal of Andrology, vol. 13, no. 6, pp. 457-464.
Isaacs JT, Lundmo PI, Berges R, Martikainen P, Kyprianou N, English HF. Androgen regulation of programmed death of normal and malignant prostatic cells. Journal of Andrology. 1992;13(6):457-464.
Isaacs, John Tod ; Lundmo, P. I. ; Berges, R. ; Martikainen, P. ; Kyprianou, N. ; English, H. F. / Androgen regulation of programmed death of normal and malignant prostatic cells. In: Journal of Andrology. 1992 ; Vol. 13, No. 6. pp. 457-464.
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