Ibuprofen ((±)-Ibuprofen) sodium is an orally active, selective inhibitor of COX-1 (IC 50 = 13 μM). Ibuprofen sodium inhibits cell proliferation, angiogenesis, and induces cell apoptosis. Ibuprofen sodium is a nonsteroidal anti-inflammatory agent and a nitric oxide (NO) donor. Ibuprofen sodium can be used in the research of pain, swelling, inflammation, infection, immunology, cancers [1] [2] [5] [8].

Ibuprofen sodium (24 h) inhibits COX-1 and COX-2 activity with IC 50 values of 13 μM and 370 μM [1]. Ibuprofen sodium (500 μM, 48 h) inhibits cell proliferation and angiogenesis, and induces AGS cell apoptosis(Adenocarcinoma gastric cell line) [2]. Ibuprofen sodium (500 μM, 48 h) downregulates transcription of Akt, VEGF-A, PCNA, Bcl2, OCT3/4 and CD44 genes, whereas upregulates RNA levels of wild type P53 and Bax genes in AGS cell [2]. Ibuprofen sodium (500 μM, 24 h) restores microtubule reformation, microtubule-dependent intracellular cholesterol transport, and induces extension of microtubules to the cell periphery in both cystic fibrosis (CF) cell models and primary CF nasal epithelial cells [3]. Ibuprofen sodium (500 μM, 24 h) enhances UV-induced cell death in MCF-7 cells and MDA-MB-231 cells by a photosensitization process [4]. Cell Viability Assay [2] Cell Line: AGS cells Concentration: 100-1000 μM Incubation Time: 24 h, 48 h Result: Inhibited AGS cell viability with IC 50 values of 630 μM (trypan blue staining, 24 h), 456 μM (neutral red assay, 24 h), 549 μM (trypan blue staining, 48 h) and 408 μM (neutral red assay, 48 h).

Ibuprofen sodium (fed in animal feedings, 300 mg/kg, 14 days) inhibits overall tumor growth and enhances anti-tumor immune characteristics without adverse autoimmune reactions in a model of postpartum breast cancer [5]. Ibuprofen sodium (subcutaneous injection, 60 mg/kg, every second day for 15 days) reduces the risk of neuropathy in a rat model of chronic Oxaliplatin induced peripheral neuropathy [6]. Ibuprofen sodium (oral administration, 20 mg/kg, every 12 hours, 5 doses total) decreases muscle growth (average muscle fiber cross-sectional area) without affecting regulation of supraspinatus tendon adaptions to exercise [7]. Ibuprofen sodium (oral administration, 35 mg/kg, twice daily) attenuates the Inflammatory response to pseudomonas aeruginosa in a rat model of chronic pulmonary infection [8]. Animal Model: Syngeneic (D2A1) orthotopic Balb/c mouse model of PPBC (postpartum) [5] Dosage: 300 mg/kg, daily for 14 days Administration: Fed in animal feedings (added to pulverized standard chow and mixed dry, then mixed with water, made into chow pellets and dried thoroughly) Result: Suppresed tumor growth, reduced presence of immature monocytes and increased numbers of T cells. Enhanced Th1 associated cytokines as well as promoted tumor border accumulation of T cells. Animal Model: Oxaliplatin induced peripheral neuropathy [6] Dosage: 60 mg/kg, every second day for 15 days Administration: Subcutaneous injection Result: Lowered sensory nerve conduction velocity (SNCV).