human il 1β (R&D Systems)
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Human Il 1β, supplied by R&D Systems, used in various techniques. Bioz Stars score: 97/100, based on 954 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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1) Product Images from "Thymelaea hirsuta (L.) Endl . extract attenuates NLRP3 inflammasome activation via modulation of ATPase activity"
Article Title: Thymelaea hirsuta (L.) Endl . extract attenuates NLRP3 inflammasome activation via modulation of ATPase activity
Journal: Frontiers in Pharmacology
doi: 10.3389/fphar.2026.1781860
Figure Legend Snippet: TMH inhibits activation of the NLRP3 inflammasome. (A) Schematic workflow of in vitro NLRP3 inflammasome activation. (B,C) Cell viability was assessed in J774A.1 cells (B) and PMA (500 nM)-differentiated THP-1 cells (C) treated with TMH for 2 or 18 h using the EZ-Cytox assay. (D) LPS-primed J774A.1 cells were treated with TMH for 2 h, then stimulated with ATP (5 mM) for 30 min in the presence or absence of MCC950. IL-1β (p17) levels in supernatants were measured by ELISA. (E,F) PMA-differentiated THP-1 cells were primed with LPS, treated with TMH for 2 h, then stimulated with ATP (5 mM) (E) or nigericin (10 μM) (F) for 1 h, with or without MCC950. IL-1β (p17) levels in supernatants were determined by ELISA. Data are presented as the mean ± SD (n = 3). Statistical analysis was performed using one-way ANOVA followed by Tukey’s multiple comparisons test. *P < 0.05, **P < 0.01, ***P < 0.001, ****P < 0.0001; n.s., not significant.
Techniques Used: Activation Assay, In Vitro, Enzyme-linked Immunosorbent Assay
Figure Legend Snippet: TMH does not affect other inflammasome or inflammatory pathways. (A,B) LPS-primed J774A.1 cells were treated with TMH for 2 h, followed by stimulation with either dsDNA (1 μg/mL) (A) or flagellin (B) transfected using Lipofectamine 2000 for 3 h. (C) Following TMH treatment (2 h), nuclear and cytosolic fractions of LPS-primed J774A.1 cells were separated and assessed for NF-κB p65 translocation by immunoblotting. (D) HEK293FT cells transfected with the pGL4.32 luciferase reporter vector were treated with TNF-α (20 ng/mL) for 5 h, with or without TMH pre-treatment (2 h). Luciferase activity was measured using the Bright-Glo™ luciferase assay system (Promega). Data are presented as the mean ± SD (n = 3). Statistical analysis was performed using one-way ANOVA followed by Tukey’s multiple comparisons test n.s., not significant.
Techniques Used: Transfection, Translocation Assay, Western Blot, Luciferase, Plasmid Preparation, Activity Assay
Figure Legend Snippet: TMH inhibits NLRP3 inflammasome activation by suppressing ASC oligomerization and ATPase activity. (A) LPS-primed J774A.1 cells were treated with TMH for 2 h, then stimulated with imiquimod (200 μM) for 1 h. (B) Cells were treated with TMH (2 h), stained with MitoSOX (5 μM, 10 min), and stimulated with ATP (5 mM, 5 min). Intracellular ROS were visualized by confocal microscopy. (C,D) PMA-differentiated THP-1 cells were primed with LPS, treated with TMH for 2 h, then stimulated with nigericin (10 μM, 1 h). ASC speck formation was examined by confocal microscopy (C) , and representative images from five fields are shown (D) . (E) Cells were stimulated with or without MCC950 and cross-linked with DSS (2.5 mM, 30 min) before immunoblotting for ASC oligomerization. (F) NLRP3 ATPase activity was measured using the ADP-Glo™ assay to quantify ATP-to-ADP conversion following TMH treatment. Data are presented as the mean ± SD (n = 3). Statistical analysis was performed using one-way ANOVA followed by Tukey’s multiple comparisons test. **P < 0.01, ***P < 0.001.
Techniques Used: Activation Assay, Activity Assay, Staining, Confocal Microscopy, Western Blot, Glo Assay
Figure Legend Snippet: Toxicity assessment of TMH in zebrafish embryos. (A) Survival curves of zebrafish embryos treated with TMH at concentrations of 1, 10, or 100 μg/mL. Sixty embryos were used per condition and maintained in E3 medium. The control group was treated with DMSO (0.25%, v/v), corresponding to the highest TMH concentration. (B) Survival and phenotype distribution of 5 dpf embryos treated with TMH at distinct concentrations from 1 to 5 dpf. (C) Representative images showing developmental abnormalities observed in embryos treated with 10 μg/mL TMH at 5 dpf. (D) Representative images of Sudan Black B staining in 3 dpf embryos treated with vehicle control (0.0025% DMSO with PTU; upper panel) or TMH (1 μg/mL; lower panel). (E) Quantification of neutrophil counts in the CHT (red dashed outline) following treatment with TMH (1 μg/mL). Data are presented as mean ± SEM of individual embryos. Statistical significance was determined using an unpaired two-tailed Student’s t-test; n.s., not significant (p = 0.9997). Scale bars, 300 µm.
Techniques Used: Control, Concentration Assay, Staining, Two Tailed Test
Figure Legend Snippet: TMH suppresses LPS-induced inflammatory cell recruitment in zebrafish embryos. (A) Representative images of neutrophil recruitment in the CHT in 3 dpf zebrafish embryos following LPS stimulation, assessed by Sudan Black B staining. Top panel: control embryos treated with 0.0025% DMSO (n = 29); middle panel: LPS-treated embryos (10 μg/mL; n = 32); bottom panel: embryos co-treated with LPS (10 μg/mL) and TMH (1 μg/mL; n = 33). (B) Quantification of neutrophil accumulation in the CHT following LPS stimulation with or without TMH treatment using Sudan Black B staining from (A) . (C) Representative images of whole-mount in situ hybridization showing mpx -positive neutrophils in 3 dpf embryos under LPS and TMH treatment conditions. Top panel (DMSO 0.0025%; n = 34); middle panel (LPS 10 μg/mL; n = 35); bottom panel (LPS 10 μg/mL with TMH 1 μg/mL; n = 39). (D) Quantification of mpx -positive cells within the CHT from (C) . (E) Representative confocal images of macrophages in 3 dpf Tg ( mpeg1 :EGFP) zebrafish embryos following LPS and TMH treatment. Top panel (DMSO 0.0025%; n = 8); middle panel (LPS 10 μg/mL; n = 11); bottom panel (LPS 10 μg/mL with TMH 1 μg/mL; n = 13). (F) Quantification of mpeg1 :EGFP-positive macrophages in the CHT region shown in (E) . Red dashed outline indicates the CHT. All data are presented as mean ± SEM. Statistical significance was determined using an unpaired two-tailed Student’s t-test. *P < 0.05; **P < 0.01; ***P < 0.05; ****P < 0.0001. Scale bars, 300 µm.
Techniques Used: Staining, Control, In Situ Hybridization, Two Tailed Test
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