condition found tbRes List
PL, Piperlongumine: Click to Expand ⟱
Features:
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


neuroP, neuroprotective: Click to Expand ⟱
Source:
Type:
Neuroprotective refers to the ability of a substance, intervention, or strategy to preserve the structure and function of nerve cells (neurons) against injury or degeneration.
-While cancer and neurodegenerative processes might seem distinct, there is significant overlap in terms of treatment-related neurotoxicity, shared molecular mechanisms, and the potential for therapies that provide neuroprotection during cancer treatment.
Scientific Papers found: Click to Expand⟱
2960- PL,    Synthesis of Piperlongumine Analogues and Discovery of Nuclear Factor Erythroid 2-Related Factor 2 (Nrf2) Activators as Potential Neuroprotective Agents
- Analysis, Nor, NA
NRF2↑, Synthesis of Piperlongumine Analogues and Discovery of Nuclear Factor Erythroid 2-Related Factor 2 (Nrf2) Activators as Potential Neuroprotective Agents Synthesis of Piperlongumine Analogues and Discovery of Nuclear Factor Erythroid 2-Related Factor
neuroP↑,

2963- PL,    Piperlongumine activates Sirtuin1 and improves cognitive function in a murine model of Alzheimer’s disease
- in-vitro, AD, HEK293
*SIRT1↑, Piperlongumine (PL) activates the deacetylase ability of Sirt1 in vitro.
*cognitive↑, PL improves cognitive deficits in APP/PS1 mice.
*Aβ↓, PL reduces amyloid deposition and neuro-inflammation in the brain of APP/PS1 mice.
*Inflam↓,
*neuroP↑,
memory↑, Sirt1 has been shown to modulate synaptic plasticity and memory formation
Dose↓, PL induced Sirt1 deacetylase activity at a relatively low concentration, i.e. 1.5 uM, compared to the resveratrol treatment.
NAD↑, PL treatment at doses of 0.5 and 4 μM significantly increased the level of NAD + . These results indicate that PL might activate Sirt1, subsequently changing the NAD + /NADH ratio

2950- PL,    Overview of piperlongumine analogues and their therapeutic potential
- Review, Var, NA
AntiAg↑, PL has been shown to exert in vitro antiplatelet aggregation effect induced by agonists such as collagen, adenosine 50-diphosphate (ADP), arachidonic acid (AA) and thrombin.
neuroP↑, Neuroprotective activity of PL and its derivatives
Inflam↓, Anti-inflammatory activity of PL and its derivatives
NO↓, production of NO and PGE2 was significantly inhibited after the treatment of PL.
PGE2↓,
MMP3↓, PL also significantly suppressed the production of MMP-3 and MMP-13
MMP13↓,
TumCMig↓, PL inhibited the proliferation, induced the apoptosis and reduced the migration and invasion of RA FLS by activating the p38, JNK, NF-kB and STAT3 pathways
TumCI↓,
p38↑,
JNK↑,
NF-kB↑,
ROS↑, PL has been reported to selectively induce apoptotic by ROS accumulation in cancer cells via different molecular mechanisms.
Foxm1↓, PL inhibited proteasome including suppression of FOXM1
TrxR1↓, induction of ROS by directly inhibiting thioredoxin reductase 1 (TrxR1) activity
GSH↓, Wang et al. demonstrated that PL could inhibit both glutathione and thioredoxin and thus induce ROS elevation,
Trx↓,
cMyc↓, downregulation of c-Myc and LMP1 and the Caspase-3-dependent apoptosis of Burkitt lymphoma cells in vitro.
Casp3↑,
Bcl-2↓, PL could downregulate Bcl-2 and Mcl-1 and decrease the expression of STAT-3
Mcl-1↓,
STAT3↓, Bharadwaj et al. identified PL as a direct STAT3 inhibitor
AR↓, Golovine et al. demonstrated for the first time that PL rapidly reduced the androgen receptor protein level of prostate cancer cells
DNAdam↑, inducing DNA damage,

2999- PL,    Piperlongumine alleviates corneal allograft rejection via suppressing angiogenesis and inflammation
- in-vivo, Nor, HUVECs
*Inflam↓, In vivo, PL treatment effectively attenuated corneal allograft rejection, paralleled by coincident suppression of neovascularization and alleviation of inflammatory response.
*angioG↓, PL distinctively inhibited hypoxia-induced angiogenic processes in HUVECs
*Hif1a↓, Two key players in hypoxia-induced angiogenesis, HIF-1α and VEGF-A were significantly suppressed by PL treatment.
*VEGF↓,
*ICAM-1↓, pronounced reduction in ICAM-1, VCAM-1, CCL2, and CXCL5 expression.
*VCAM-1↓,
*neuroP↑, including anti-tumoral, anti-depressant, anti-diabetic, anti-atherosclerotic and neuroprotective properties

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
ROS↑, it is selectively toxic to cancer cells by generating reactive oxygen species (ROS)
selectivity↑,
tumCV↓, Cell viability, colony formation, cell cycle, apoptosis, and cellular ROS induction.
TumCCA↑,
Apoptosis↑,
ERK↑, activation of Erk and the suppression of the Akt/mTOR pathways through ROS induction were seen in cells treated with PL
Akt↓,
mTOR↓,
neuroP↑, neuroprotective, and anticancer properties
Bcl-2↓, induces the downregulation of Bcl2 expression and the activation of caspase-3, poly (ADP-ribose) polymerase (PARP), and JNK
Casp3↑,
PARP↑,
JNK↑,
*toxicity↓, several whole-animal models, and it is highly safe when used in vivo
eff↓, Pre-treatment with N-acetylcysteine (NAC; a selective ROS scavenger) significantly reduced PL-mediated ROS activation
TumW↓, tumor weight in the PL (10 mg/kg) treatment group significantly decreased when compared with that in the control group


* indicates research on normal cells as opposed to diseased cells
Total Research Paper Matches: 5

Results for Effect on Cancer/Diseased Cells:
Akt↓,1,   AntiAg↑,1,   Apoptosis↑,1,   AR↓,1,   Bcl-2↓,2,   Casp3↑,2,   cMyc↓,1,   DNAdam↑,1,   Dose↓,1,   eff↓,1,   ERK↑,1,   Foxm1↓,1,   GSH↓,1,   Inflam↓,1,   JNK↑,2,   Mcl-1↓,1,   memory↑,1,   MMP13↓,1,   MMP3↓,1,   mTOR↓,1,   NAD↑,1,   neuroP↑,3,   NF-kB↑,1,   NO↓,1,   NRF2↑,1,   p38↑,1,   PARP↑,1,   PGE2↓,1,   ROS↑,2,   selectivity↑,1,   STAT3↓,1,   Trx↓,1,   TrxR1↓,1,   TumCCA↑,1,   TumCI↓,1,   TumCMig↓,1,   tumCV↓,1,   TumW↓,1,  
Total Targets: 38

Results for Effect on Normal Cells:
angioG↓,1,   Aβ↓,1,   cognitive↑,1,   Hif1a↓,1,   ICAM-1↓,1,   Inflam↓,2,   neuroP↑,2,   SIRT1↑,1,   toxicity↓,1,   VCAM-1↓,1,   VEGF↓,1,  
Total Targets: 11

Scientific Paper Hit Count for: neuroP, neuroprotective
5 Piperlongumine
Filter Conditions: Pro/AntiFlg:%  IllCat:%  CanType:%  Cells:%  prod#:134  Target#:1105  State#:%  Dir#:%
  wNotes=on  sortOrder:rid,rpid

 

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