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4 protocols using anacardic acid

1

Mechanotransduction and Epigenetic Regulation

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Nuclear protein extractions were isolated from 105 fibroblasts cultured on glass, PAAm, MeHA, or o-NB PAAm gels of varying stiffness for the indicated time points by using the nuclear extraction kit (EpiGentek, OP-0002, USA), according the manufacturer’s instructions. HAT and HDAC activity were measured by using the HAT activity/inhibition assay kit (EpiGentek, P-4003-48, USA) and HDAC activity/inhibition assay kit (EpiGentek, P-4034-96, USA), respectively. Following the manufacturer’s instructions, 5 μg of nuclear extract was added into the assay wells and incubated at 37°C for 60 min. After adding the color developer solution, the absorbance was measured using a plate reader (Infinite 200Pro, 30050303) at 450 nm. For inhibitor experiments, fibroblasts were cultured on glass and PA gels of varying stiffness for 1 day, followed by treatment with vehicle control (DMSO), anacardic acid (1 μM; Cayman chemical, 13144), VPA (500 μM; Cayman chemical, 13033), cytochalasin D (0.5 μM or indicated concentrations; Cayman chemical, 11330), importazole (10 μM; Cayman chemical, 21491), or BMS-5 (4 μM; Cayman chemical, 21072) for 24 hours before isolating nuclear protein extracts and measuring HAT or HDAC activity as aforementioned.
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2

HDAC Inhibition and TNF-α Secretion Assay

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For the HDAC inhibition assay, cells were pretreated with TSA (5nM, Sigma-Aldrich). For the TNF-α secretion assay, human THP1 or murine macrophage RAW264.7 cells were treated with TSA, VPA (0.1 μM), Ms275 (5 μM), NIC (0.5 μM) HPOB (0.5 μM) (Sigma-Aldrich), TMP269 (0.1 μM), PCI-34051 (0.1 μM), RGFP966 (0.5 μM) (Selleckchem), paragyline (3 μM), 5'azacytidine (10 μM) or anacardic acid (10 μM) (Cayman Chemical). The concentration of HDAC inhibitors used did not induce cytotoxicity (Supplementary Fig.5 a-h). It is important to note that at high concentrations, HDAC inhibitors blocked TNF-α secretion (Supplementary Fig. 7b-i) 30 (link).
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3

Biochemical Protocols for Protein Purification

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Commercially available Curcumin (#81025.1), Anacardic acid (#13144), Garcinol (#10566) and IsoGarcinol (#21164) were purchased from Cayman. Anti-Flag affinity gel (#A2220) and anti-Flag antibody conjugated with horseradish peroxidase (#A8592) were purchased from Sigma-Aldrich. Acetyl-Histone H3 Antibody (#9675) and acetyl histone H4 antibody (#13534) were purchased from Cell Signaling Technology. SHMT2 (mSHMT Antibody (F-11): sc-390641- Non-conjugated), ß-actin antibody (SC-47778 HRP) and goat anti-mouse IgG-HRP (sc-2005) were purchased from Santa Cruz. And histone H4 antibody (#ab197517) was purchased from Abcam. Triple Flag peptide for eluting Flag-tagged HDAC11 enzyme and protease inhibitor cocktail were purchased from Sigma-Aldrich. ECL plus western blotting detection reagent and universal nuclease for cell lysis were purchased from Thermo Scientific Pierce. Acyl peptides (myristoyl-H3K9) and Alk14 were synthesized.26 (link) The peptide sequence for the H3K9 peptide is KQTARK(myristoyl)STGGWW with uncapped N-terminal and SHMT2 peptide is SDEVK(myristoyl)AHLLAWW with capped acetyl N-terminal.
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4

HDAC Inhibition and TNF-α Secretion Assay

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For the HDAC inhibition assay, cells were pretreated with TSA (5nM, Sigma-Aldrich). For the TNF-α secretion assay, human THP1 or murine macrophage RAW264.7 cells were treated with TSA, VPA (0.1 μM), Ms275 (5 μM), NIC (0.5 μM) HPOB (0.5 μM) (Sigma-Aldrich), TMP269 (0.1 μM), PCI-34051 (0.1 μM), RGFP966 (0.5 μM) (Selleckchem), paragyline (3 μM), 5'azacytidine (10 μM) or anacardic acid (10 μM) (Cayman Chemical). The concentration of HDAC inhibitors used did not induce cytotoxicity (Supplementary Fig.5 a-h). It is important to note that at high concentrations, HDAC inhibitors blocked TNF-α secretion (Supplementary Fig. 7b-i) 30 (link).
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