Cited by 31Telomeres, Telomerase, and SenescenceHIV Research and TreatmentHIV-related health complications and treatments

Effects of HIV-1 gp120 and tat on endothelial cell sensescence and senescence-associated microRNAs

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Hijmans, Jamie G., Stockleman, Kelly, Reiakvam, Whitney, Levy, Ma'ayan V., Brewster, Lillian M., Bammert, Tyler D., Greiner, Jared J., Connick, Elizabeth +1 more·2018·Physiological Reports

Abstract

The aim of this study was to determine, in vitro, the effects of X4 and R5 HIV-1 gp120 and Tat on: (1) endothelial cell senescence and (2) endothelial cell microRNA (miR) expression. Endothelial cells were treated with media without and with: R5 gp120 (100 ng/mL), X4 gp120 (100 ng/mL), or Tat (500 ng/mL) for 24 h and stained for senescence-associated β-galactosidase (SA-β-gal). Cell expression of miR-34a, miR-217, and miR-146a was determined by RT-PCR. X4 and R5 gp120 and Tat significantly increased (~100%) cellular senescence versus control. X4 gp120 significantly increased cell expression of miR-34a (1.60 ± 0.04 fold) and miR-217 (1.52 ± 0.18), but not miR-146a (1.25 ± 0.32). R5 gp120 significantly increased miR-34a (1.23 ± 0.07) and decreased miR-146a (0.56 ± 0.07). Tat significantly increased miR-34a (1.49 ± 0.16) and decreased miR-146a (0.55 ± 0.23). R5 and Tat had no effect on miR-217 (1.05 ± 0.13 and 1.06 ± 0.24; respectively). HIV-1 gp120 (X4 and R5) and Tat promote endothelial cell senescence and dysregulation of senescence-associated miRs.

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Authors
Hijmans, J. G., Stockleman, K., Reiakvam, W., Levy, M. V., Brewster, L. M., Bammert, T. D., Greiner, J. J., Connick, E., & DeSouza, C. A.
Affiliations
  • University of Colorado Boulder (US)
  • University of Arizona (US)
Corresponding author
DeSouza, Christopher A.
Venue
Physiological Reports
Publisher
Wiley
Published
2018-03
Volume
6
Issue
6
Pages
e13647
ISSN
2051-817X (ISSN-L)
OpenAlex
W2796369912
Cited by
31
References
54
Citations by year
2026: 1 · 2025: 6 · 2024: 5 · 2023: 1 · 2022: 1 · 2021: 5 · 2020: 4 · 2019: 5 · 2018: 3
FWCI
2.92
Type
journal article
Language
en
Open access
Locations
  • Physiological Reports (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • UA Campus Repository (The University of Arizona) (acceptedVersion, cc-by)
Funders
National Institutes of Health (HL131458)
Topics
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
  • Life Sciences › Immunology and Microbiology › Virology › HIV Research and Treatment
  • Health Sciences › Medicine › Emergency Medicine › HIV-related health complications and treatments
Keywords
HIV-1, gp120, Tat, endothelial cell senescence, miR-34a, miR-146a, miR-217, R5-tropic HIV-1, X4 HIV-1, senescence-associated β-galactosidase, endothelial dysfunction
MeSH terms
Cardiovascular Diseases, Cells, Cultured, Humans, HIV Infections, HIV Envelope Protein gp120, Cellular Senescence, MicroRNAs, Endothelial Cells, tat Gene Products, Human Immunodeficiency Virus

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