Theileria annulata Cyclophilin1 (TaCyp1) Interacts With Host Cell MED21
Host cells infected by Theileria annulata schizonts show the character of permanent proliferation in vitro, also named transformation. To explore the molecular mechanism a T. annulata Cyp1 (TaCyp1) protein potentially involved in regulating cell transformation was used as bait to screen for its inte...
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doaj-a63baebb326d4355a34f5105ac12a1072020-11-25T02:46:50ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2018-12-01910.3389/fmicb.2018.02973421118Theileria annulata Cyclophilin1 (TaCyp1) Interacts With Host Cell MED21Shuaiyang Zhao0Junlong Liu1Guiquan Guan2Aihong Liu3Youquan Li4Hong Yin5Hong Yin6Jianxun Luo7Jianxun Luo8State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, ChinaState Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, ChinaState Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, ChinaState Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, ChinaState Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, ChinaState Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, ChinaJiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, ChinaState Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, ChinaJiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, ChinaHost cells infected by Theileria annulata schizonts show the character of permanent proliferation in vitro, also named transformation. To explore the molecular mechanism a T. annulata Cyp1 (TaCyp1) protein potentially involved in regulating cell transformation was used as bait to screen for its interacting proteins by yeast-two-hybrid assay. Additional GST-pull down experiments confirmed that only MED21 specifically interacted with TaCyp1. Moreover, the distribution of TaCyp1 around T. annulata schizonts facilitated interaction with host cell MED21. As a component of mediator complex, MED21 is normally involved in regulating the transcription of nearly all RNA polymerase II-dependent genes. Therefore, to explore its influence on NF-κB signaling MED21 RNA interference and parasite killing with BW720c treatment were performed. Knock down of MED21 resulted in a significant decrease in NF-κB1/2 mRNA expressions, but no significant change in P105, P52 levels, nor detectable alteration in levels of phosphorylated IκBα/β. By contrast, BW720c treatment induced an obvious decrease in the phosphorylation status of P52 and IκBα/β, but no obvious change in that of P105. This suggests that BW720c-induced parasite death had a significant negative influence on NF-κB signaling, whereas knock down of MED21 had no obvious effect on NF-κB signaling. Characterization of TaCyp1 provides information on the function of parasite cyclophilins and leads to a better understanding of the interactions between T. annulata and its host leukocytes.https://www.frontiersin.org/article/10.3389/fmicb.2018.02973/fullTheileria annulataschizonttransformationcyclophilinsMED21NF-κB |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Shuaiyang Zhao Junlong Liu Guiquan Guan Aihong Liu Youquan Li Hong Yin Hong Yin Jianxun Luo Jianxun Luo |
spellingShingle |
Shuaiyang Zhao Junlong Liu Guiquan Guan Aihong Liu Youquan Li Hong Yin Hong Yin Jianxun Luo Jianxun Luo Theileria annulata Cyclophilin1 (TaCyp1) Interacts With Host Cell MED21 Frontiers in Microbiology Theileria annulata schizont transformation cyclophilins MED21 NF-κB |
author_facet |
Shuaiyang Zhao Junlong Liu Guiquan Guan Aihong Liu Youquan Li Hong Yin Hong Yin Jianxun Luo Jianxun Luo |
author_sort |
Shuaiyang Zhao |
title |
Theileria annulata Cyclophilin1 (TaCyp1) Interacts With Host Cell MED21 |
title_short |
Theileria annulata Cyclophilin1 (TaCyp1) Interacts With Host Cell MED21 |
title_full |
Theileria annulata Cyclophilin1 (TaCyp1) Interacts With Host Cell MED21 |
title_fullStr |
Theileria annulata Cyclophilin1 (TaCyp1) Interacts With Host Cell MED21 |
title_full_unstemmed |
Theileria annulata Cyclophilin1 (TaCyp1) Interacts With Host Cell MED21 |
title_sort |
theileria annulata cyclophilin1 (tacyp1) interacts with host cell med21 |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Microbiology |
issn |
1664-302X |
publishDate |
2018-12-01 |
description |
Host cells infected by Theileria annulata schizonts show the character of permanent proliferation in vitro, also named transformation. To explore the molecular mechanism a T. annulata Cyp1 (TaCyp1) protein potentially involved in regulating cell transformation was used as bait to screen for its interacting proteins by yeast-two-hybrid assay. Additional GST-pull down experiments confirmed that only MED21 specifically interacted with TaCyp1. Moreover, the distribution of TaCyp1 around T. annulata schizonts facilitated interaction with host cell MED21. As a component of mediator complex, MED21 is normally involved in regulating the transcription of nearly all RNA polymerase II-dependent genes. Therefore, to explore its influence on NF-κB signaling MED21 RNA interference and parasite killing with BW720c treatment were performed. Knock down of MED21 resulted in a significant decrease in NF-κB1/2 mRNA expressions, but no significant change in P105, P52 levels, nor detectable alteration in levels of phosphorylated IκBα/β. By contrast, BW720c treatment induced an obvious decrease in the phosphorylation status of P52 and IκBα/β, but no obvious change in that of P105. This suggests that BW720c-induced parasite death had a significant negative influence on NF-κB signaling, whereas knock down of MED21 had no obvious effect on NF-κB signaling. Characterization of TaCyp1 provides information on the function of parasite cyclophilins and leads to a better understanding of the interactions between T. annulata and its host leukocytes. |
topic |
Theileria annulata schizont transformation cyclophilins MED21 NF-κB |
url |
https://www.frontiersin.org/article/10.3389/fmicb.2018.02973/full |
work_keys_str_mv |
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