(Vell.) Brenan as an inhibitor of HIV-1 BaL infection.

Nat Prod Res

School of Dental Medicine School of Dental Medicine, Department of Foundational Sciences, East Carolina University, Greenville, NC, USA.

Published: March 2022

We reported the anti-HIV-1 activity, cytotoxicity, cytokines expression and chemical profile of . Cytotoxicity was evaluated on TZM-bl, HL2/3 cells and macrophages. Anti-HIV-1 activity was determined by Luciferase assay (TZM-bl cells) and by HIV-p24 quantification (macrophages) assessed by ELISA. TZM-bl and HL2/3 cells were used to determine cell-cell fusion inhibition. Cytokines expression was assessed by ELISA. Chemical composition was determined by Gas Chromatography Coupled to Mass Spectrometry. At 66.6 µg/mL, the extract maintained the cell viability above 90%. At 33.28 µg/mL, the extract reduced 82.8% of HIV-1 infection (TZM-bl cells) and HIV-p24 expression (macrophages). The extract inhibited approximately 70% of TZM-bl and HL2/3 cells fusion. Extract did't induce inflammatory response. Phytochemical analysis showed presence of flavonoid, phenolic acids, fatty acids and sugars. This is the first tudy presenting the anti-HIV effect of , showing low cytotoxicity and no inflammatory stimuli, important requirements for a microbicide development.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9078876PMC
http://dx.doi.org/10.1080/14786419.2021.1892097DOI Listing

Publication Analysis

Top Keywords

tzm-bl hl2/3
12
hl2/3 cells
12
anti-hiv-1 activity
8
cytokines expression
8
tzm-bl cells
8
cells hiv-p24
8
assessed elisa
8
tzm-bl
5
cells
5
vell brenan
4

Similar Publications

(Vell.) Brenan as an inhibitor of HIV-1 BaL infection.

Nat Prod Res

March 2022

School of Dental Medicine School of Dental Medicine, Department of Foundational Sciences, East Carolina University, Greenville, NC, USA.

We reported the anti-HIV-1 activity, cytotoxicity, cytokines expression and chemical profile of . Cytotoxicity was evaluated on TZM-bl, HL2/3 cells and macrophages. Anti-HIV-1 activity was determined by Luciferase assay (TZM-bl cells) and by HIV-p24 quantification (macrophages) assessed by ELISA.

View Article and Find Full Text PDF

Background: During HIV infection, fusion of the viral and cellular membranes is dependent on folding of the gp41 trimer into a six-helix bundle. Fusion inhibitors, such as the antiretroviral Enfuvirtide (T20), interfere with the formation of the gp41 six-helix bundle. Recent in vitro studies reveal that the gp41 immunodominant region one targeting antibody 3D6 can block T20 interference, but the clinical and pathophysiologic significance of this finding is unclear.

View Article and Find Full Text PDF

Early pregnancy associated protein-1 (Epap-1), a 90kDa glycoprotein present in first trimester placental tissue, inhibits HIV-1 entry through interaction with HIV-1 gp120 at V3 and C5 regions. In the present study, we have identified the specific 32 mer region of Epap-1 that can interact with V3 loop. This was achieved by docking between Epap-1 molecular model and gp120 and studying the interaction of peptides with gp120 in vitro.

View Article and Find Full Text PDF

Anti-HIV activity of semisynthetic derivatives of andrographolide and computational study of HIV-1 gp120 protein binding.

Eur J Med Chem

October 2012

Laboratory for Advanced Research in Natural and Synthetic Chemistry, V. G. Vaze College, Mumbai University, Mithagar Road, Mulund (East), Mumbai 400 081, India.

Andrographolide, a diterpene lactone of the Andrographis paniculata, displays anti-HIV activity in vitro. A series of andrographolide derivatives have been synthesized and evaluated for their anti-HIV activity in a cell-free virus infectivity assay using TZM-bl cells. As compared to andrographolide, 3-nitrobenzylidene derivative 6 showed higher in vitro anti-HIV activity, whereas 2',6'-dichloro-nicotinoyl ester derivative 9 showed higher Therapeutic Index.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!