Original paper<br>The effect of monosodium glutamate on rat thymocyte proliferation and Bcl-2/bax protein expression

Introduction: Monosodium glutamate (MSG) is one of the commonest food additives in modern nutrition. Recent studies showed the modulatory effect of MSG on rat thymocyte apoptosis in vivo and under in vitro conditions. However, the influence of MSG on thymocyte proliferation is largely unknown. Mater...

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Main Authors: Voja Pavlović, Snežana Cekić
Format: Article
Language:English
Published: Termedia Publishing House 2006-12-01
Series:Archives of Medical Science
Subjects:
Online Access:http://www.termedia.pl/magazine.php?magazine_id=19&article_id=7335&magazine_subpage=FULL_TEXT
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author Voja Pavlović
Snežana Cekić
author_facet Voja Pavlović
Snežana Cekić
author_sort Voja Pavlović
collection DOAJ
description Introduction: Monosodium glutamate (MSG) is one of the commonest food additives in modern nutrition. Recent studies showed the modulatory effect of MSG on rat thymocyte apoptosis in vivo and under in vitro conditions. However, the influence of MSG on thymocyte proliferation is largely unknown. Material and methods: We evaluated the effect of increased MSG concentrations on thymocyte proliferation, as well as the expression of their two apoptosis-related proteins, Bcl-2 and Bax. Proliferation was detected by PCNA monoclonal antibody, and cells were analyzed using a flow cytometer. Expression of Bcl-2 and Bax protein were determined with flow cytometry, using respective monoclonal antibodies. Results: The results obtained in our study demonstrate that MSG significantly decreased thymocyte proliferation, in a dose dependent manner, followed by significantly increased cytotoxicity. The expression of Bcl-2 protein was significantly decreased, while Bax protein expression was not changed in our study. Conclusions: The results presented in our study indicate that MSG significantly modulated intensity of thymocyte proliferation as a consequence of increased cytotoxicity. The expression of Bcl-2 and Bax proteins suggests that this protein level is an important event in thymocyte cytotoxicity, triggered by MSG
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spelling doaj.art-4252fd2ef3ce4087b7175823c8f970182022-12-21T23:42:06ZengTermedia Publishing HouseArchives of Medical Science1734-19222006-12-0124247251Original paper<br>The effect of monosodium glutamate on rat thymocyte proliferation and Bcl-2/bax protein expressionVoja PavlovićSnežana CekićIntroduction: Monosodium glutamate (MSG) is one of the commonest food additives in modern nutrition. Recent studies showed the modulatory effect of MSG on rat thymocyte apoptosis in vivo and under in vitro conditions. However, the influence of MSG on thymocyte proliferation is largely unknown. Material and methods: We evaluated the effect of increased MSG concentrations on thymocyte proliferation, as well as the expression of their two apoptosis-related proteins, Bcl-2 and Bax. Proliferation was detected by PCNA monoclonal antibody, and cells were analyzed using a flow cytometer. Expression of Bcl-2 and Bax protein were determined with flow cytometry, using respective monoclonal antibodies. Results: The results obtained in our study demonstrate that MSG significantly decreased thymocyte proliferation, in a dose dependent manner, followed by significantly increased cytotoxicity. The expression of Bcl-2 protein was significantly decreased, while Bax protein expression was not changed in our study. Conclusions: The results presented in our study indicate that MSG significantly modulated intensity of thymocyte proliferation as a consequence of increased cytotoxicity. The expression of Bcl-2 and Bax proteins suggests that this protein level is an important event in thymocyte cytotoxicity, triggered by MSGhttp://www.termedia.pl/magazine.php?magazine_id=19&article_id=7335&magazine_subpage=FULL_TEXTmonosodium glutamateproliferationthymocytesBcl-2Bax
spellingShingle Voja Pavlović
Snežana Cekić
Original paper<br>The effect of monosodium glutamate on rat thymocyte proliferation and Bcl-2/bax protein expression
Archives of Medical Science
monosodium glutamate
proliferation
thymocytes
Bcl-2
Bax
title Original paper<br>The effect of monosodium glutamate on rat thymocyte proliferation and Bcl-2/bax protein expression
title_full Original paper<br>The effect of monosodium glutamate on rat thymocyte proliferation and Bcl-2/bax protein expression
title_fullStr Original paper<br>The effect of monosodium glutamate on rat thymocyte proliferation and Bcl-2/bax protein expression
title_full_unstemmed Original paper<br>The effect of monosodium glutamate on rat thymocyte proliferation and Bcl-2/bax protein expression
title_short Original paper<br>The effect of monosodium glutamate on rat thymocyte proliferation and Bcl-2/bax protein expression
title_sort original paper br the effect of monosodium glutamate on rat thymocyte proliferation and bcl 2 bax protein expression
topic monosodium glutamate
proliferation
thymocytes
Bcl-2
Bax
url http://www.termedia.pl/magazine.php?magazine_id=19&article_id=7335&magazine_subpage=FULL_TEXT
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