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International Journal of Innovation and Applied Studies
ISSN: 2028-9324     CODEN: IJIABO     OCLC Number: 828807274     ZDB-ID: 2703985-7
 
 
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Induction of Cell Cycle Arrest in Tumor Tissue And Bone Marrow Of Grafted Mice Treated with Androgen and Antiandrogen. Running title: Effect of androgen and antiandrogen on leukemia cell line


Volume 8, Issue 1, September 2014, Pages 294–306

 Induction of Cell Cycle Arrest in Tumor Tissue And Bone Marrow Of Grafted Mice Treated with Androgen and Antiandrogen. Running title: Effect of androgen and antiandrogen on leukemia cell line

Souad ABOUDKHIL1, Laurent HENRY2, Mohamed Nabil BENCHEKROUN3, Hassan FILALI4, and Jean Paul BUREAU5

1 Laboratory of Cell Biology and Molecular Cytogenetics, Faculty of Medicine Montpellier-Nîmes, Avenue Kennedy, 30900 Nîmes, France
2 Laboratoire de Biologie Cellulaire et de Cytogénétique Moléculaire, Faculté de Médecine de Montpellier-Nîmes, France
3 Laboratoire de Biochimie, Environnement et d'agroalimentaire (URAC 36), Faculté des Sciences et Techniques Mohammedia, Université Hassan II Mohammedia Casablanca, Morocco
4 Laboratoire de Biochimie, Environnement et d'agroalimentaire (URAC 36), Faculté des Sciences et Techniques Mohammedia, Université Hassan II Mohammedia Casablanca, Morocco
5 Laboratory of Cell Biology and Molecular Cytogenetics, Faculty of Medicine Montpellier-Nîmes, Avenue Kennedy, 30900 Nîmes, France

Original language: English

Received 5 July 2014

Copyright © 2014 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract


Background: These works were designed to investigate the influence of androgens (by castration and testosterone treatment) on growth and development of murine leukaemia cell line P388 in vitro and in vivo. To approach the mechanism of this hormone, the cell cycle was analysed in bone marrow cells and tumour tissue in vitro and on murine leukaemia cell line (P388) in culture. The anti-androgen CA was used to provide additional information concerning the androgen receptor in leukaemia cells.
Materials and methods: The effect of Depo-Testosterone (DT) and Cyproterone-Acetate (CA) were studied on growth tumour and cell cycle progression, in bone marrow and tumour tissue of intact or castrated P388 tumour-bearing BDF1 mice. In parallel the effect of various concentrations of DT (10-8, 10-7, 10-6, 10-4 M) was investigated on the proliferation and cell cycle of P388 leukaemia cell line in vitro.
Results: In P388 tumour-bearing mice, DT (0.5mg/100g body weight) treatment reduced strongly the weight and the appearance rate of tumour in non-castrated (NC) and castrated animals. In NC animals, the cell cycle analysis showed a significant decrease in the number of cells in S phase in tumour tissue under DT or CA treatment. Same results were obtained in bone marrow with DT only. The cells accumulate into G2/M and G0/G1 phases respectively. In vitro testosterone can inhibit the proliferation of leukaemic cells with a pharmacological dose of 10-7M. This growth inhibition was associated with cell cycle arrest in G0/G1 phase. This effect was dose and time dependent.
Conclusion: The data demonstrated that both in vivo and in vitro, testosterone prevent the growth of P388 leukaemia cells and induce changes in their cell cycle. The similar effect of CA and DT on tumour growth inhibition, in cell cycle of bone marrow and tumour tissue may suggest differences between androgen receptors of sexual organs and leukemic cells.


Author Keywords: Testosterone, Cyproterone-Acetate, P388 leukaemia cell line, Cell cycle, Tumour tissue, Bone marrow cells.


How to Cite this Article


Souad ABOUDKHIL, Laurent HENRY, Mohamed Nabil BENCHEKROUN, Hassan FILALI, and Jean Paul BUREAU, “Induction of Cell Cycle Arrest in Tumor Tissue And Bone Marrow Of Grafted Mice Treated with Androgen and Antiandrogen. Running title: Effect of androgen and antiandrogen on leukemia cell line,” International Journal of Innovation and Applied Studies, vol. 8, no. 1, pp. 294–306, September 2014.