para-Phenylenediamine-induces apoptosis via a pathway dependent on PTK-Ras-Raf-JNK activation but independent of the PI3K/Akt pathway in NRK-52E cells

  • Authors:
    • Reena A.P. Kasi
    • Chye Soi Moi
    • Yip Wai Kien
    • Koh Rhun Yian
    • Ng Wei Chin
    • Ng Khuen Yen
    • Gnanajothy Ponnudurai
    • Seow Heng Fong
  • View Affiliations

  • Published online on: November 19, 2014     https://doi.org/10.3892/mmr.2014.2979
  • Pages: 2262-2268
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Abstract

para‑Phenylenediamine (p‑PD) is a potential carcinogen, and widely used in marketed hair dye formulations. In the present study, the role of the protein tyrosine kinase (PTK)/Ras/Raf/c‑Jun N‑terminal kinase (JNK) and phosphoinositide 3‑kinase (PI3k)/protein kinase B (Akt) pathways on the growth of NRK‑52E cells was investigated. The results demonstrated that p‑PD reduced cell viability in a dose‑dependent manner. The cell death due to apoptosis was confirmed by cell cycle analysis and an Annexin‑V‑fluorescein isothiocyanate binding assay. Subsequent to staining with 2',7'‑dichlorofluorescin diacetate, the treated cells demonstrated a significant increase in reactive oxygen species (ROS) generation compared with the controls. The effects of p‑PD on the signalling pathways were analysed by western blotting. p‑PD‑treated cells exhibited an upregulated phospho‑stress‑activated protein kinase/JNK protein expression level and downregulated Ras and Raf protein expression levels; however, Akt, Bcl‑2, Bcl‑XL and Bad protein expression levels were not significantly altered compared with the control. In conclusion, p‑PD induced apoptosis by a PTK/Ras/Raf/JNK‑dependent pathway and was independent of the PI3K/Akt pathway in NRK‑52E cells.
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March-2015
Volume 11 Issue 3

Print ISSN: 1791-2997
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Spandidos Publications style
Kasi RA, Moi CS, Kien YW, Yian KR, Chin NW, Yen NK, Ponnudurai G and Fong SH: para-Phenylenediamine-induces apoptosis via a pathway dependent on PTK-Ras-Raf-JNK activation but independent of the PI3K/Akt pathway in NRK-52E cells. Mol Med Rep 11: 2262-2268, 2015
APA
Kasi, R.A., Moi, C.S., Kien, Y.W., Yian, K.R., Chin, N.W., Yen, N.K. ... Fong, S.H. (2015). para-Phenylenediamine-induces apoptosis via a pathway dependent on PTK-Ras-Raf-JNK activation but independent of the PI3K/Akt pathway in NRK-52E cells. Molecular Medicine Reports, 11, 2262-2268. https://doi.org/10.3892/mmr.2014.2979
MLA
Kasi, R. A., Moi, C. S., Kien, Y. W., Yian, K. R., Chin, N. W., Yen, N. K., Ponnudurai, G., Fong, S. H."para-Phenylenediamine-induces apoptosis via a pathway dependent on PTK-Ras-Raf-JNK activation but independent of the PI3K/Akt pathway in NRK-52E cells". Molecular Medicine Reports 11.3 (2015): 2262-2268.
Chicago
Kasi, R. A., Moi, C. S., Kien, Y. W., Yian, K. R., Chin, N. W., Yen, N. K., Ponnudurai, G., Fong, S. H."para-Phenylenediamine-induces apoptosis via a pathway dependent on PTK-Ras-Raf-JNK activation but independent of the PI3K/Akt pathway in NRK-52E cells". Molecular Medicine Reports 11, no. 3 (2015): 2262-2268. https://doi.org/10.3892/mmr.2014.2979