Generation of liposomes to study the effect of Mycobacterium Tuberculosis lipids on HIV-1 cis- and trans-infections
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Published version
Author(s)
Type
Journal Article
Abstract
Tuberculosis (TB) is the leading cause of death among HIV-1-infected individuals and Mycobacterium tuberculosis (Mtb) co-infection is an early precipitate to AIDS. We aimed to determine whether Mtb strains differentially modulate cellular susceptibility to HIV-1 infection (cis- and trans-infection), via surface receptor interaction by their cell envelope lipids. Total lipids from pathogenic (lineage 4 Mtb H37Rv, CDC1551 and lineage 2 Mtb HN878, EU127) and non-pathogenic (Mycobacterium bovis BCG and Mycobacterium smegmatis) Mycobacterium strains were integrated into liposomes mimicking the lipid distribution and antigen accessibility of the mycobacterial cell wall. The resulting liposomes were tested for modulating in vitro HIV-1 cis- and trans-infection of TZM-bl cells using single-cycle infectious virus particles. Mtb glycolipids did not affect HIV-1 direct infection however, trans-infection of both R5 and X4 tropic HIV-1 strains were impaired in the presence of glycolipids from M. bovis, Mtb H37Rv and Mtb EU127 strains when using Raji-DC-SIGN cells or immature and mature dendritic cells (DCs) to capture virus. SL1, PDIM and TDM lipids were identified to be involved in DC-SIGN recognition and impairment of HIV-1 trans-infection. These findings indicate that variant strains of Mtb have differential effect on HIV-1 trans-infection with the potential to influence HIV-1 disease course in co-infected individuals.
Date Issued
2021-02-16
Date Acceptance
2021-02-11
Citation
International Journal of Molecular Sciences, 2021, 22 (4), pp.1-21
ISSN
1422-0067
Publisher
MDPI AG
Start Page
1
End Page
21
Journal / Book Title
International Journal of Molecular Sciences
Volume
22
Issue
4
Copyright Statement
© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
License URL
Sponsor
Wellcome Trust
Wellcome Trust
Identifier
https://www.mdpi.com/1422-0067/22/4/1945
Grant Number
104803/Z/14/Z
WDAI_P83556
Subjects
Science & Technology
Life Sciences & Biomedicine
Physical Sciences
Biochemistry & Molecular Biology
Chemistry, Multidisciplinary
Chemistry
HIV-1
TB
Mycobacterium tuberculosis
in vitro
DC-SIGN
liposomes
trans-infection
SL1
TDM
PDIM
H37Rv
HN878
CDC1551
EU127
BCG
M
smegmatis
BCG
CDC1551
DC-SIGN
EU127
H37Rv
HIV-1
HN878
M. smegmatis
Mycobacterium tuberculosis
PDIM
SL1
TB
TDM
in vitro
liposomes
trans-infection
Chemical Physics
0399 Other Chemical Sciences
0604 Genetics
0699 Other Biological Sciences
Publication Status
Published
Article Number
1945
Date Publish Online
2021-02-16