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Association of Heme Oxygenase 1 with the Restoration of Liver Function after Damage in Murine Malaria by Plasmodium yoelii

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Title Association of Heme Oxygenase 1 with the Restoration of Liver Function after Damage in Murine Malaria by Plasmodium yoelii
 
Creator Dey, Sumanta
Mazumder, Somnath
Siddiqui, Asim Azhar
Iqbal, M. Shameel
Banerjee, Chinmoy
Sarkar, Souvik
De, Rudranil
Goyal, Manish
Bindu, Samik
Bandyopadhyay, Uday
 
Subject Infectious Diseases and Immunology
 
Description The liver efficiently restores function after damage induced during malarial infection once the parasites are cleared from the blood. However, the molecular events leading to the restoration of liver function after malaria are still obscure. To study this, we developed a suitable model wherein mice infected with Plasmodium yoelii (45% parasitemia) were treated with the antimalarial
�/�-arteether to clear parasites from the blood and, subsequently, restoration of liver function was monitored. Liver function tests clearly indicated that complete recovery of liver function occurred after 25 days of parasite clearance. Analyses of proinflammatory
gene expression and neutrophil infiltration further indicated that hepatic inflammation, which was induced immediately after parasite clearance from the blood, was gradually reduced. Moreover, the inflammation in the liver after parasite clearance was found to be correlated positively with oxidative stress and hepatocyte apoptosis. We investigated the role of heme oxygenase 1 (HO-1) in the restoration of liver function after malaria because HO-1 normally renders protection against inflammation,
oxidative stress, and apoptosis under various pathological conditions. The expression and activity of HO-1 were found
to be increased significantly after parasite clearance. We even found that chemical silencing of HO-1 by use of zinc protoporphyrin enhanced inflammation, oxidative stress, hepatocyte apoptosis, and liver injury. In contrast, stimulation of HO-1 by cobalt protoporphyrin alleviated liver inflammation and reduced oxidative stress, hepatocyte apoptosis, and associated tissue injury. Therefore, we propose that selective induction of HO-1 in the liver would be beneficial for the restoration of liver function after
parasite clearance
 
Publisher American Society for Microbiology
 
Date 2014
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://www.eprints.iicb.res.in/2150/1/INFECTION_AND_IMMUNITY__V_82__(_8_)_3113%2D3126_;2014[78].pdf
Dey, Sumanta and Mazumder, Somnath and Siddiqui, Asim Azhar and Iqbal, M. Shameel and Banerjee, Chinmoy and Sarkar, Souvik and De, Rudranil and Goyal, Manish and Bindu, Samik and Bandyopadhyay, Uday (2014) Association of Heme Oxygenase 1 with the Restoration of Liver Function after Damage in Murine Malaria by Plasmodium yoelii. Infection and Immunity, 82 (8). pp. 3113-3126.
 
Relation http://dx.doi.org/10.1128/IAI.01598-14
http://www.eprints.iicb.res.in/2150/