Role of Cav-1 in HIV-1 Tat-Induced Dysfunction of Tight Junctions and Aβ-Transferring Proteins
Joint Authors
Huang, Wen
Jiang, Wenlin
Zou, Min
Wu, Yu
Chen, Qiangtang
Source
Oxidative Medicine and Cellular Longevity
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-05-14
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Objective.
To evaluate the role of caveolin-1 (Cav-1) in HIV-1 Tat-induced dysfunction of tight junction and amyloid β-peptide- (Aβ-) transferring proteins.
Methods.
A Cav-1 shRNA interference target sequence was cloned into the lentiviral vector pHBLV-U6-Scramble-ZsGreen-Puro and verified by double enzyme digestion and DNA sequencing.
Human cerebral microvascular endothelium (HBEC-5i) cells were transduced with viral particles made in 293T cells by transfection with lentiviral packaging plasmids.
HBEC-5i cells transduced with Cav-1 shRNA or Ctr shRNA were exposed to HIV-1 Tat for 24 h, and the protein and mRNA levels of the tight junction protein occludin, Aβ-transferring protein, receptor for advanced glycation end products (RAGE), low-density lipoprotein receptor-related protein- (LRP-) 1, and RhoA were evaluated with Western blot and real-time reverse transcription polymerase chain reaction (qRT-PCR) assays, respectively.
Results.
After sequencing, an RNA interference recombinant lentivirus expressing a vector targeting Cav-1 was successfully established.
The recombined lentiviral particles were made by using 293T cells to package the recombined lentiviral vector.
A stable monoclonal cell line with strong GFP expression was acquired with a Cav-1 knockdown rate of 85.7%.
The occludin protein and mRNA levels in the Ctr shRNA group were decreased with HIV-1 Tat exposure but were upregulated in the Cav-1 shRNA group.
The HIV-1 Tat-induced alterations of RAGE and LRP-1 protein and mRNA levels in the Ctr shRNA group were attenuated in the Cav-1 shRNA group.
The RhoA protein levels in the Ctr shRNA group were upregulated by HIV-1 Tat exposure but were downregulated in the Cav-1 shRNA group.
Conclusion.
These results show that HIV-1 Tat-induced downregulation of occludin and LRP-1 and upregulation of RAGE and RhoA may result in the accumulation of Aβ in the brain.
Silencing the Cav-1 gene with shRNA plays a key role in the protection against HIV-1 Tat-induced dysfunction of the blood-brain barrier and Aβ accumulation.
American Psychological Association (APA)
Zou, Min& Huang, Wen& Jiang, Wenlin& Wu, Yu& Chen, Qiangtang. 2019. Role of Cav-1 in HIV-1 Tat-Induced Dysfunction of Tight Junctions and Aβ-Transferring Proteins. Oxidative Medicine and Cellular Longevity،Vol. 2019, no. 2019, pp.1-8.
https://search.emarefa.net/detail/BIM-1203202
Modern Language Association (MLA)
Zou, Min…[et al.]. Role of Cav-1 in HIV-1 Tat-Induced Dysfunction of Tight Junctions and Aβ-Transferring Proteins. Oxidative Medicine and Cellular Longevity No. 2019 (2019), pp.1-8.
https://search.emarefa.net/detail/BIM-1203202
American Medical Association (AMA)
Zou, Min& Huang, Wen& Jiang, Wenlin& Wu, Yu& Chen, Qiangtang. Role of Cav-1 in HIV-1 Tat-Induced Dysfunction of Tight Junctions and Aβ-Transferring Proteins. Oxidative Medicine and Cellular Longevity. 2019. Vol. 2019, no. 2019, pp.1-8.
https://search.emarefa.net/detail/BIM-1203202
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1203202