Plumbagin / MMP Cancer Research Results

PLB, Plumbagin: Click to Expand ⟱
Features:
Plumbagin (5-hydroxy-2-methyl-1,4-naphthoquinone) is a naturally occurring naphthoquinone derivative.

–Plumbagin can undergo redox cycling to generate reactive oxygen species (ROS)
-apototosis, activation of caspases, modulation of Bax, Bcl‑2, loss of MMP.
-Cell cycle arrest in cancer cells, often at the G0/G1, or G2/M phases.
-May inhibit NF‑κB activation
– MAPK Pathways
– PI3K/Akt Pathway
-Downregulation of (VEGF) and matrix metalloproteinases (MMPs).

-Seems capable of raising ROS in normal and cancer cells (#2004)

-ic50 cancer cells 1-10uM, normal cells >10uM

Rank Pathway / Target Axis Direction Primary Effect Notes / Cancer Relevance Ref
1 Oxidative stress (redox cycling) ↑ ROS Upstream cytotoxic trigger Plumbagin induces ROS; ROS generation is causally linked to cell death in cancer models (ref)
2 Mitochondrial integrity (ΔΨm) ↓ ΔΨm Mitochondrial dysfunction Loss of mitochondrial membrane potential occurs during plumbagin-induced apoptotic progression (ref)
3 Intrinsic apoptosis (caspase cascade) ↑ caspase-dependent apoptosis Programmed cell death Plumbagin triggers apoptosis in leukemia and solid tumor cells; antioxidant rescue attenuates killing (ref)
4 NF-κB signaling ↓ NF-κB activation Reduced pro-survival / inflammatory transcription Demonstrates plumbagin suppresses NF-κB signaling in tumor/immune contexts (direction explicitly shown) (ref)
5 STAT3 signaling ↓ STAT3 phosphorylation Reduced survival & proliferation signaling Plumbagin suppresses constitutive and inducible STAT3 phosphorylation in cancer cells (ref)
6 PI3K–AKT–mTOR signaling ↓ PI3K/AKT/mTOR activity Survival pathway suppression Plumbagin inhibits PI3K/AKT/mTOR signaling in cancer cells with linked apoptosis/autophagy outcomes (ref)
7 Autophagy program ↑ autophagy Stress response (context-dependent role) Plumbagin induces autophagy alongside apoptosis; pathway involvement (p38, PI3K/AKT/mTOR) is demonstrated (ref)
8 Stress MAPK (p38 MAPK) ↑ p38 activation Stress signaling amplification p38 MAPK activation is implicated in plumbagin-driven apoptosis/autophagy signaling in cancer cells (ref)
9 Cell cycle control ↑ G2/M (or S–G2/M) arrest Proliferation blockade Plumbagin induces checkpoint arrest with changes in cyclins/CDKs consistent with growth inhibition (ref)
10 Death receptor axis (TRAIL receptors DR4/DR5) ↑ DR4/DR5 expression Sensitizes to TRAIL-mediated killing Plumbagin increases DR4/DR5 and enhances TRAIL killing; NAC blocks both ROS and receptor upregulation (ref)
11 EMT / invasion programs ↓ EMT (anti-invasive) Reduced metastasis-related phenotype Plumbagin suppresses epithelial–mesenchymal transition and stemness-related markers in cancer cells (ref)
12 Angiogenesis signaling (VEGFR2/VEGF-driven endothelial responses) ↓ angiogenesis signaling / function Anti-angiogenic effect Plumbagin inhibits tumor angiogenesis via interference with VEGFR2-mediated signaling in endothelial/tumor models (ref)


MMP, ΔΨm, mitochondrial membrane potential: Click to Expand ⟱
Source:
Type:
Destruction of mitochondrial transmembrane potential, which is widely regarded as one of the earliest events in the process of cell apoptosis.
Mitochondria are organelles within eukaryotic cells that produce adenosine triphosphate (ATP), the main energy molecule used by the cell. For this reason, the mitochondrion is sometimes referred to as “the powerhouse of the cell”.
Mitochondria produce ATP through process of cellular respiration—specifically, aerobic respiration, which requires oxygen. The citric acid cycle, or Krebs cycle, takes place in the mitochondria.
The mitochondrial membrane potential is widely used in assessing mitochondrial function as it relates to the mitochondrial capacity of ATP generation by oxidative phosphorylation. The mitochondrial membrane potential is a reliable indicator of mitochondrial health.
In cancer cells, ΔΨm is often decreased, which can lead to changes in cellular metabolism, increased glycolysis, increased reactive oxygen species (ROS) production, and altered cell death pathways.

The membrane of malignant mitochondria is hyperpolarized (−220 mV) in comparison to their healthy counterparts (−160 mV), which facilitates the penetration of positively charged molecules to the cancer cells mitochondria.
The MMP is a critical indicator of mitochondrial function, directly reflecting the organelle's capacity to generate ATP through oxidative phosphorylation.


Scientific Papers found: Click to Expand⟱
2651- PLB,    Oxidative Stress Inducers in Cancer Therapy: Preclinical and Clinical Evidence
- Review, Var, NA
ROS↑, TrxR↓, GSR↓, ER Stress↓, TumCCA↑, MMP↓, NF-kB↓, PI3K↓, Akt↓, mTOR↓, MKP1↓, MKP2↓, ChemoSen↑,
5158- PLB,    Plumbagin induces reactive oxygen species, which mediate apoptosis in human cervical cancer cells
- in-vitro, Cerv, ME-180
TumCG↓, ROS↑, Apoptosis↑, MMP↓, DNAdam↑, Cyt‑c↑, AIF↑, Casp3↑, Casp9↑, eff↓,

Showing Research Papers: 1 to 2 of 2

* indicates research on normal cells as opposed to diseased cells
Total Research Paper Matches: 2

Pathway results for Effect on Cancer / Diseased Cells:


Redox & Oxidative Stress ⓘ

GSR↓, 1,   ROS↑, 2,   TrxR↓, 1,  

Mitochondria & Bioenergetics ⓘ

AIF↑, 1,   MMP↓, 2,  

Cell Death ⓘ

Akt↓, 1,   Apoptosis↑, 1,   Casp3↑, 1,   Casp9↑, 1,   Cyt‑c↑, 1,   MKP1↓, 1,   MKP2↓, 1,  

Protein Folding & ER Stress ⓘ

ER Stress↓, 1,  

DNA Damage & Repair ⓘ

DNAdam↑, 1,  

Cell Cycle & Senescence ⓘ

TumCCA↑, 1,  

Proliferation, Differentiation & Cell State ⓘ

mTOR↓, 1,   PI3K↓, 1,   TumCG↓, 1,  

Immune & Inflammatory Signaling ⓘ

NF-kB↓, 1,  

Drug Metabolism & Resistance ⓘ

ChemoSen↑, 1,   eff↓, 1,  
Total Targets: 21

Pathway results for Effect on Normal Cells:


Total Targets: 0

Scientific Paper Hit Count for: MMP, ΔΨm, mitochondrial membrane potential
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

Filter Conditions: Pro/AntiFlg:%  IllCat:%  CanType:%  Cells:%  prod#:299  Target#:197  State#:%  Dir#:1
  wNotes=0  sortOrder:rid,rpid

 

Home Page