Parasite-induced ER stress response in hepatocytes facilitates Plasmodium liver stage infection

• Verfasst von: Inácio, Patricia [VerfasserIn]
• Verfasst von: Mair, Gunnar R. [VerfasserIn]
• Titel: Parasite-induced ER stress response in hepatocytes facilitates Plasmodium liver stage infection
• Verf.angabe: Patricia Inácio, Vanessa Zuzarte-Luís, Margarida TG Ruivo, Brie Falkard, Nagarjuna Nagaraj, Koos Rooijers, Matthias Mann, Gunnar Mair, David A Fidock & Maria M Mota
• E-Jahr: 2015
• Jahr: 25 June 2015
• Umfang: 10 S.
• Fussnoten: Gesehen am 03.06.2020
• Titel Quelle: Enthalten in: European Molecular Biology OrganizationEMBO reports
• Ort Quelle: [London] : Nature Publishing Group UK, 2000
• Jahr Quelle: 2015
• Band/Heft Quelle: 16(2015), 8, Seite 955-964
• ISSN Quelle: 1469-3178
• DOI: doi:10.15252/embr.201439979
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: CREBH
• Sach-SW: liver
• Sach-SW: Plasmodium
• Sach-SW: UPR
• Sach-SW: XBP1
• K10plus-PPN: 1699315965

Abstract

Abstract Upon infection of a mammalian host, Plasmodium parasites first replicate inside hepatocytes, generating thousands of new parasites. Although Plasmodium intra-hepatic development represents a substantial metabolic challenge to the host hepatocyte, how infected cells respond to and integrate this stress remains poorly understood. Here, we present proteomic and transcriptomic analyses, revealing that the endoplasmic reticulum (ER)-resident unfolded protein response (UPR) is activated in host hepatocytes upon Plasmodium berghei infection. The expression of XBP1s?the active form of the UPR mediator XBP1?and the liver-specific UPR mediator CREBH is induced by P. berghei infection in vivo. Furthermore, this UPR induction increases parasite liver burden. Altogether, our data suggest that ER stress is a central feature of P. berghei intra-hepatic development, contributing to the success of infection.