Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
Indian J Pharmacol. 2012 Nov-Dec;44(6):714-21. doi: 10.4103/0253-7613.103265.

Effect of lithium chloride and antineoplastic drugs on survival and cell cycle of androgen-dependent prostate cancer LNCap cells.

Author information

  • 1Department of Animal Biology, Developmental Biology Lab., School of Biology, University College of Science, University of Tehran, Tehran, Iran.

Abstract

OBJECTIVE:

Glycogen synthase kinase-3β (GSK-3β) has been reported to be required for androgen receptor (AR) activity. This study sought to determine the usefulness of lithium chloride (LiCl) as a highly selective inhibitor of GSK-3β to increase the sensitivity of LNCap cells to doxorubicin (Dox), etoposide (Eto), and vinblastine (Vin) drugs.

MATERIALS AND METHODS:

Thiazolyl Blue Tetrazolium Blue (MTT) assay was used to determine the cytotoxic effect to LiCl alone or in combination with low dose and IC50 doses of drugs. Subsequently, cell cycle analysis was performed by using flow cytometry.

RESULTS:

LiCl showed cytotoxic effect in a dose- and time-dependent manner (P<0.001). Both Dox (100 or 280 nM) and Vin IC50 (5 nM) doses caused G2/M-phase arrest (P<0.001) compared with control. However, low dose (10 μM) or IC50 (70 μM) Eto doses showed G2/M or S-phase arrests, respectively (P<0.001). Combination of low dose or IC50 dose of Eto with LiCl showed increased apoptosis as revealed by high percent of cells in SubG1 (P<0.05, P<0.01, respectively). Moreover, Eto (10 μM) led to decreased percent of cells in G2/M phase when combined with LiCl (P<0.05).

CONCLUSION:

This study showed that LiCl increases apoptosis of (LNCap) Lymph Node Carcinoma of the Prostate cells in the presence of Eto, which is S- and G2-phase-specific drug.

KEYWORDS:

Antineoplastic drugs; combination therapy; glycogen synthase kinase-3β; lithium chloride; prostate cancer

PMID:
23248400
[PubMed - indexed for MEDLINE]
PMCID:
PMC3523498
Free PMC Article

Images from this publication.See all images (6)Free text

Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Icon for Medknow Publications and Media Pvt Ltd Icon for PubMed Central
    Loading ...
    Write to the Help Desk