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| Used to treat urea cycle disorders Sodium phenylbutyrate helps remove ammonia from the body. -Phenyl-butyrate (PB)4 is an aromatic fatty acid that is converted in vivo to phenylacetate (PA) by β-oxidation in liver and kidney mitochondria. -In human body, phenylbutyrate is oxidized to phenylacetate, which is in turn conjugated with glutamine and eliminated in urine as phenylacetylglutamine, thereby mediating elimination of waste nitrogen -Phenylbutyrate is one of the first drugs encountered in cancer therapy as a histone deacetylase inhibitor (HDACI) (relatively weak compared to vorinostat (SAHA), romidepsin, etc.). -Butyric acid is one of the short-chain fatty acids produced by the gut microbiota through the fermentation of dietary fiber. Butyrate is primarily recognized for its beneficial effects in the colon and is tightly linked to gut health. -Phenylbutyrate is a derivative of butyrate that has been chemically modified by the addition of a phenyl group. This structural change increases its lipophilicity (fat solubility) and alters its metabolic fate and biological activity. This allows it to be used as a systemic drug, in contrast to the locally produced butyrate in the gut, which is rapidly metabolized by colonocytes Pathways: -Histone deacetylase (HDAC) inhibitor -ER stress inhibitor (at least in normal cell) -Can act as a chemical chaperone, helping to reduce ER stress by facilitating proper protein folding. -Modulation of NF-κB Signaling -Changes in pathways such as PI3K/Akt/mTOR and MAPK. -Some preclinical investigations have reported that treatment with phenylbutyrate leads to mitochondrial dysfunction and endoplasmic reticulum (ER) stress, both of which can result in an increase of ROS within cancer cells. Note: Sodium butyrate (NaBu) vs Sodium phenylbutyrate -Sodium butyrate is primarily a research tool with limited clinical application, whereas phenylbutyrate is used clinically -Phenylbutyrate typically exhibits improved pharmacokinetics and is more amenable to systemic use compared to sodium butyrate. -Both compounds act as HDAC inhibitors, phenylbutyrate additionally modulates ER stress and mitochondrial function, leading to potentially greater ROS production in certain cancer cells. https://www.purepba.com/shop/
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| The selectivity of cancer products (such as chemotherapeutic agents, targeted therapies, immunotherapies, and novel cancer drugs) refers to their ability to affect cancer cells preferentially over normal, healthy cells. High selectivity is important because it can lead to better patient outcomes by reducing side effects and minimizing damage to normal tissues. Achieving high selectivity in cancer treatment is crucial for improving patient outcomes. It relies on pinpointing molecular differences between cancerous and normal cells, designing drugs or delivery systems that exploit these differences, and overcoming intrinsic challenges like tumor heterogeneity and resistance Factors that affect selectivity: 1. Ability of Cancer cells to preferentially absorb a product/drug -EPR-enhanced permeability and retention of cancer cells -nanoparticle formations/carriers may target cancer cells over normal cells -Liposomal formations. Also negatively/positively charged affects absorbtion 2. Product/drug effect may be different for normal vs cancer cells - hypoxia - transition metal content levels (iron/copper) change probability of fenton reaction. - pH levels - antiOxidant levels and defense levels 3. Bio-availability |
| 2581- | ART/DHA, | PB, | Synergistic cytotoxicity of artemisinin and sodium butyrate on human cancer cells |
| - | in-vitro, | AML, | NA |
| 2061- | PB, | Chemo, | Complementary effects of HDAC inhibitor 4-PB on gap junction communication and cellular export mechanisms support restoration of chemosensitivity of PDAC cells |
| - | in-vitro, | PC, | PANC1 | - | in-vitro, | PC, | COLO357 | - | in-vitro, | PC, | Bxpc-3 |
| 2037- | PB, | Selective activity of phenylacetate against malignant gliomas: resemblance to fetal brain damage in phenylketonuria |
| - | in-vitro, | GBM, | NA | - | in-vivo, | GBM, | NA |
| 2046- | PB, | Sodium butyrate promotes apoptosis in breast cancer cells through reactive oxygen species (ROS) formation and mitochondrial impairment |
| - | in-vitro, | BC, | MCF-7 | - | in-vitro, | BC, | MDA-MB-468 | - | in-vitro, | Nor, | MCF10 |
Query results interpretion may depend on "conditions" listed in the research papers. Such Conditions may include : -low or high Dose -format for product, such as nano of lipid formations -different cell line effects -synergies with other products -if effect was for normal or cancerous cells
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