Cytoprotective effect of arginine deiminase on taxol-induced apoptosis in DU145 human prostate cancer cells

Sang Wook Kang, Hyeog Kang, In Sun Park, Sang-Hyun Choi, Kyung-Ho Shin, Yeon Sook Chun, Boe Gwun Chun, Bon Hong Min

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

We purified and partially sequenced a cytostatic protein from the ASC-17D Sertoli cell-conditioned media (rSCCM) showing a molecular weight of 90 kDa with homodimeric composition. N-terminal amino acid analysis revealed that the protein was homologous to the arginine deiminase (ADI) of Mycoplasma arginini. We found ADI enzyme activity in rSCCM and the abolishment of the growth inhibitory effect by the supplement of L-arginine. Thus, we confirmed that the cytostatic activity in rSCCM was due to the depletion of extracellular L-arginine by ADI. Apparent increase of cell death or DNA fragmentation was not observed in DU145 cells cultured in the presence of ADI. Incubation of DU145 cancer cells with taxol resulted in a marked DNA fragmentation, whereas pretreatment with ADI or cycloheximide protected the cells from taxol-induced apoptosis. Preincubation of the cells with ADI inhibited S35-methionine incorporation into protein synthesis in a dose dependent manner. These data suggest that ADI-induced arginine depletion may inhibit protein synthesis, and result in the protection of apoptotic cell death that requires new protein synthesis.

Original languageEnglish
Pages (from-to)331-337
Number of pages7
JournalMolecules and Cells
Volume10
Issue number3
Publication statusPublished - 2000 Jun 30

Fingerprint

Paclitaxel
Prostatic Neoplasms
Apoptosis
Arginine
Cytostatic Agents
DNA Fragmentation
Proteins
Cell Death
Sertoli Cells
Mycoplasma
Cycloheximide
Conditioned Culture Medium
arginine deiminase
Methionine
Cultured Cells
Molecular Weight
Amino Acids
Enzymes
Growth
Neoplasms

Keywords

  • Arginine Deiminase
  • Cytoprotection
  • DU145
  • Growth Arrest
  • Mycoplasma arginini

ASJC Scopus subject areas

  • Cell Biology
  • Genetics
  • Molecular Biology

Cite this

Cytoprotective effect of arginine deiminase on taxol-induced apoptosis in DU145 human prostate cancer cells. / Kang, Sang Wook; Kang, Hyeog; Park, In Sun; Choi, Sang-Hyun; Shin, Kyung-Ho; Chun, Yeon Sook; Chun, Boe Gwun; Min, Bon Hong.

In: Molecules and Cells, Vol. 10, No. 3, 30.06.2000, p. 331-337.

Research output: Contribution to journalArticle

Kang, Sang Wook ; Kang, Hyeog ; Park, In Sun ; Choi, Sang-Hyun ; Shin, Kyung-Ho ; Chun, Yeon Sook ; Chun, Boe Gwun ; Min, Bon Hong. / Cytoprotective effect of arginine deiminase on taxol-induced apoptosis in DU145 human prostate cancer cells. In: Molecules and Cells. 2000 ; Vol. 10, No. 3. pp. 331-337.
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