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Piperlongumine (also called Piplartine), an alkaloid from long pepper fruit -Piperlongumine is a bioactive alkaloid derived from the long pepper (Piper longum) – Piperlongumine has been shown to selectively increase ROS levels in cancer cells. -NLRP3 inhibitor? -TrxR inhibitor (major antioxidant system) to increase ROS in cancer cells -ic50 cancer cells maybe 2-10uM, normal cells maybe exceeding 20uM. Available from mcsformulas.com -(Long Pepper, 500mg/Capsule)- 1 capsule 3 times daily with food -Piperlongumine Pro Liposomal, 40 mg-take 1 capsule daily with plenty of water, after a meal -Note half-life 30–60 minutes BioAv poor aqueous solubility and bioavailability Pathways: - induce ROS production in cancer cells likely at any dose. Effect on normal cells is inconclusive. - ROS↑ related: MMP↓(ΔΨm), ER Stress↑, UPR↑, Cyt‑c↑, Caspases↑, DNA damage↑, cl-PARP↑, Prx, - Lowers some AntiOxidant markers/ defense in Cancer Cells: but mostly raises NRF2 (raises antiO defense), TrxR↓(*important), GSH↓ Catalase↓ HO1↓ GPx↓ - Very little indication of raising AntiOxidant defense in Normal Cells: GSH↑, - lowers Inflammation : NF-kB↓, COX2↓, conversely p38↑, Pro-Inflammatory Cytokines : NLRP3↓, IL-1β↓, TNF-α↓, IL-6↓, IL-8↓ - inhibit Growth/Metastases : TumMeta↓, TumCG↓, EMT↓, MMP2↓, MMP9↓, VEGF↓, NF-κB↓, CXCR4↓, ERK↓ - reactivate genes thereby inhibiting cancer cell growth : HDAC↓(few reports), DNMT1↓, DNMT3A↓, EZH2↓, P53↑, HSP↓, Sp proteins↓, - cause Cell cycle arrest : TumCCA↑, cyclin D1↓, CDK2↓, CDK4↓, CDK6↓, - inhibits Migration/Invasion : TumCMig↓, TumCI↓, ERK↓, EMT↓, - small indication of inhibiting glycolysis : HIF-1α↓, cMyc↓, LDH↓, HK2↓, - inhibits angiogenesis↓ : VEGF↓, HIF-1α↓, EGFR↓, - Others: PI3K↓, AKT↓, JAK↓, STAT↓, β-catenin↓, ERK↓, JNK, - Synergies: chemo-sensitization, RadioSensitizer, Others(review target notes), Neuroprotective, Cognitive, Hepatoprotective, CardioProtective, - Selectivity: Cancer Cells vs Normal Cells |
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Tumor cell cycle arrest refers to the process by which cancer cells stop progressing through the cell cycle, which is the series of phases that a cell goes through to divide and replicate. This arrest can occur at various checkpoints in the cell cycle, including the G1, S, G2, and M phases.
S, G1, G2, and M are the four phases of mitosis. |
2952- | PL,  |   | Piperlongumine suppresses bladder cancer invasion via inhibiting epithelial mesenchymal transition and F-actin reorganization |
- | in-vitro, | Bladder, | T24 | - | in-vivo, | Bladder, | NA |
2957- | PL,  |   | Piperlongumine Induces Cell Cycle Arrest via Reactive Oxygen Species Accumulation and IKKβ Suppression in Human Breast Cancer Cells |
- | in-vitro, | BC, | MCF-7 |
1951- | PL,  |   | Piperlongumine Analogs Promote A549 Cell Apoptosis through Enhancing ROS Generation |
- | in-vitro, | Lung, | A549 |
1938- | PL,  |   | Piperlongumine regulates epigenetic modulation and alleviates psoriasis-like skin inflammation via inhibition of hyperproliferation and inflammation |
- | Study, | PSA, | NA | - | in-vivo, | NA, | NA |
1942- | PL,  |   | Piperlongumine inhibits antioxidant enzymes, increases ROS levels, induces DNA damage and G2/M cell cycle arrest in breast cell lines |
- | in-vitro, | BC, | MCF-7 |
1944- | PL,  |   | Piperlongumine, a Novel TrxR1 Inhibitor, Induces Apoptosis in Hepatocellular Carcinoma Cells by ROS-Mediated ER Stress |
- | in-vitro, | HCC, | HUH7 | - | in-vitro, | HCC, | HepG2 |
1945- | PL,  | SANG,  |   | The Synergistic Effect of Piperlongumine and Sanguinarine on the Non-Small Lung Cancer |
- | in-vitro, | Lung, | A549 |
1947- | PL,  |   | Piperlongumine as a direct TrxR1 inhibitor with suppressive activity against gastric cancer |
- | in-vitro, | GC, | SGC-7901 | - | in-vitro, | GC, | NA |
1948- | PL,  | born,  |   | Natural borneol serves as an adjuvant agent to promote the cellular uptake of piperlongumine for improving its antiglioma efficacy |
- | in-vitro, | GBM, | NA |
1953- | PL,  |   | Designing piperlongumine-directed anticancer agents by an electrophilicity-based prooxidant strategy: A mechanistic investigation |
- | in-vitro, | Lung, | A549 | - | in-vitro, | Nor, | WI38 |
2649- | PL,  |   | Oxidative Stress Inducers in Cancer Therapy: Preclinical and Clinical Evidence |
- | Review, | Var, | NA |
2942- | PL,  |   | Piperlongumine increases sensitivity of colorectal cancer cells to radiation: Involvement of ROS production via dual inhibition of glutathione and thioredoxin systems |
- | in-vitro, | CRC, | CT26 | - | in-vitro, | CRC, | DLD1 | - | in-vivo, | CRC, | CT26 |
2944- | PL,  |   | Piperlongumine, a Potent Anticancer Phytotherapeutic, Induces Cell Cycle Arrest and Apoptosis In Vitro and In Vivo through the ROS/Akt Pathway in Human Thyroid Cancer Cells |
- | in-vitro, | Thyroid, | IHH4 | - | in-vitro, | Thyroid, | 8505C | - | in-vivo, | NA, | NA |
2946- | PL,  |   | Piperlongumine, a potent anticancer phytotherapeutic: Perspectives on contemporary status and future possibilities as an anticancer agent |
- | Review, | Var, | NA |
2947- | PL,  |   | Piperlongumine: the amazing amide alkaloid from Piper in the treatment of breast cancer |
- | Review, | Var, | NA |
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