Emodin / Cyt‑c Cancer Research Results

EMD, Emodin: Click to Expand ⟱
Features:
Organic compound isolated from rhubarb, buckthorn, knotweed. It has laxative, anticancer, antibacterial, antiinflammatory, and antiviral activities, and is used in traditional Chinese medicine.
Emodin, an anthraquinone derivative found in various plants (e.g., rhubarb, Polygonum cuspidatum).

Pathways:
- Generation of Reactive Oxygen Species (ROS)
- Upregulation Bax downregulation of Bcl‑2, caspase activation and cyt_c release.
- Induce cell cycle arrest at various checkpoints (commonly G0/G1 or G2/M phases.
- Can inhibit NF‑κB activation
– MAPK Pathways
– PI3K/Akt Pathway
- Metalloproteinases (MMPs)

-ic50 cancer cells 10-50uM, normal cells higher(supports a therapeutic window)

Rank Pathway / Target Axis Direction Label Primary Effect Notes / Cancer Relevance Ref
1 Reactive oxygen species (ROS) ↑ ROS Driver Upstream cytotoxic trigger Emodin induces ROS in cancer cells; ROS increase is positioned upstream of mitochondrial dysfunction and death signaling. (ref)
2 Mitochondrial integrity (ΔΨm) ↓ ΔΨm Driver Mitochondrial dysfunction Emodin decreases mitochondrial membrane potential (ΔΨm), consistent with mitochondria-dependent killing. (ref)
3 Intrinsic apoptosis (caspase cascade) ↑ apoptosis (↑ caspases / ↑ PARP cleavage) Driver Execution-phase cell death Emodin activates caspase-dependent apoptosis with mitochondrial involvement in colon cancer models. (ref)
4 AMPK → AKT/mTOR axis ↑ AMPK / ↓ AKT-mTOR signaling Secondary Growth/metabolic suppression NSCLC study reports AMPK activation with inhibition of AKT/mTOR alongside apoptosis and ROS increase (consistent directionality). (ref)
5 NF-κB signaling ↓ NF-κB activation (↓ p65 nuclear translocation; ↓ IκBα phosphorylation/degradation) Secondary Reduced pro-survival/inflammatory transcription Emodin inhibits TNF-α–induced NF-κB activation by blocking IκBα phosphorylation/degradation and p65 nuclear activity. (ref)
6 STAT3 signaling ↓ STAT3 activation (↓ phosphorylation) Secondary Reduced survival/proliferation signaling HCC study shows emodin suppresses STAT3 activation (and discusses upstream kinase modulation), supporting directionality as STAT3↓. (ref)
7 HIF-1α hypoxia program ↓ HIF-1α (↓ biosynthesis; not via transcription/stability) Adaptive Reduced hypoxia tolerance Pancreatic cancer study: emodin decreases HIF-1α by decreasing biosynthesis (explicit mechanism stated). (ref)
8 Aerobic glycolysis (Warburg output) ↓ glycolysis (↓ ECAR / ↓ glycolytic dependence) Phenotypic Metabolic suppression Renal cancer paper reports emodin inhibits aerobic glycolysis (and links killing to a non-apoptotic death mode in that model). (ref)
9 HDAC inhibition (epigenetic enzyme activity) ↓ HDAC activity Secondary Epigenetic modulation Direct biochemical evidence: emodin inhibits HDAC activity in vitro (fast-on/slow-off kinetics reported). (ref)
10 NRF2 / HO-1 antioxidant response ↑ NRF2 / ↑ HO-1 (context-dependent stress response) Adaptive Counter-response to redox stress HCC model reports emodin increases NRF2 and HO-1 expression; interpret as adaptive/compensatory (not necessarily the cytotoxic driver). (ref)


Cyt‑c, cyt-c Release into Cytosol: Click to Expand ⟱
Source:
Type:
Cytochrome c
** The term "release of cytochrome c" ** an increase in level for the cytosol.
Small hemeprotein found loosely associated with the inner membrane of the mitochondrion where it plays a critical role in cellular respiration. Cytochrome c is highly water-soluble, unlike other cytochromes. It is capable of undergoing oxidation and reduction as its iron atom converts between the ferrous and ferric forms, but does not bind oxygen. It also plays a major role in cell apoptosis.

The term "release of cytochrome c" refers to a critical step in the process of programmed cell death, also known as apoptosis.
In its new location—the cytosol—cytochrome c participates in the apoptotic signaling pathway by helping to form the apoptosome, which activates caspases that execute cell death.
Cytochrome c is a small protein normally located in the mitochondrial intermembrane space. Its primary role in healthy cells is to participate in the electron transport chain, a process that helps produce energy (ATP) through oxidative phosphorylation.
Mitochondrial outer membrane permeability leads to the release of cytochrome c from the mitochondria into the cytosol.
The release of cytochrome c is a pivotal event in apoptosis where cytochrome c moves from the mitochondria to the cytosol, initiating a chain reaction that leads to programmed cell death.

On the one hand, cytochrome c can promote cancer cell survival and proliferation by regulating the activity of various signaling pathways, such as the PI3K/AKT pathway. This can lead to increased cell growth and resistance to apoptosis, which are hallmarks of cancer.
On the other hand, cytochrome c can also induce apoptosis in cancer cells by interacting with other proteins, such as Apaf-1 and caspase-9. This can lead to the activation of the intrinsic apoptotic pathway, which can result in the death of cancer cells.
Overexpressed in Breast, Lung, Colon, and Prostrate.
Underexpressed in Ovarian, and Pancreatic.


Scientific Papers found: Click to Expand⟱
1327- EMD,    Emodin induces apoptosis in human lung adenocarcinoma cells through a reactive oxygen species-dependent mitochondrial signaling pathway
- in-vitro, Lung, A549
Cyt‑c↑, Casp2↑, Casp3↑, Casp9↑, ERK↓, Akt↓, ROS↑, MMP↓, Bcl-2↓, BAX↑,
1330- EMD,    Aloe emodin-induced apoptosis in t-HSC/Cl-6 cells involves a mitochondria-mediated pathway
- in-vitro, NA, NA
tumCV↓, Casp3↑, Casp9↑, MMP↓, Cyt‑c↑, BAX↑, Bax:Bcl2↑,
1329- EMD,    Aloe-emodin induces cell death through S-phase arrest and caspase-dependent pathways in human tongue squamous cancer SCC-4 cells
- in-vitro, Tong, SCC4
TumCCA↑, eff↓, P53↑, P21↑, p27↑, cycA1/CCNA1↓, cycE/CCNE↓, TS↓, CDC25↓, AIF↑, proCasp9↓, Cyt‑c↑, MMP↓, Bax:Bcl2↑, Casp3↑, Casp9↑,
1328- EMD,    Emodin induces apoptosis of human tongue squamous cancer SCC-4 cells through reactive oxygen species and mitochondria-dependent pathways
- in-vitro, Tong, SCC4
TumCCA↑, P21↑, Chk2↑, CycB/CCNB1↓, cDC2↓, Apoptosis↑, Cyt‑c↑, Casp9↑, Casp3↑, ROS↑, MMP↓, Bax:Bcl2↑, ER Stress↑,
1321- EMD,    Antitumor effects of emodin on LS1034 human colon cancer cells in vitro and in vivo: roles of apoptotic cell death and LS1034 tumor xenografts model
- in-vitro, CRC, LS1034 - in-vivo, NA, NA
tumCV↓, TumCCA↑, ROS↑, Ca+2↑, MMP↓, Apoptosis↑, Cyt‑c↑, Casp9↑, Bax:Bcl2↑,
1296- EMD,    Emodin inhibits LOVO colorectal cancer cell proliferation via the regulation of the Bcl-2/Bax ratio and cytochrome c
- in-vitro, CRC, LoVo
BAX↑, Bcl-2↓, MMP↓, Cyt‑c↑,

Showing Research Papers: 1 to 6 of 6

* indicates research on normal cells as opposed to diseased cells
Total Research Paper Matches: 6

Pathway results for Effect on Cancer / Diseased Cells:


Redox & Oxidative Stress

ROS↑, 3,  

Mitochondria & Bioenergetics

AIF↑, 1,   CDC25↓, 1,   MMP↓, 6,  

Core Metabolism/Glycolysis

TS↓, 1,  

Cell Death

Akt↓, 1,   Apoptosis↑, 2,   BAX↑, 3,   Bax:Bcl2↑, 4,   Bcl-2↓, 2,   Casp2↑, 1,   Casp3↑, 4,   Casp9↑, 5,   proCasp9↓, 1,   Chk2↑, 1,   Cyt‑c↑, 6,   p27↑, 1,  

Transcription & Epigenetics

tumCV↓, 2,  

Protein Folding & ER Stress

ER Stress↑, 1,  

DNA Damage & Repair

P53↑, 1,  

Cell Cycle & Senescence

cycA1/CCNA1↓, 1,   CycB/CCNB1↓, 1,   cycE/CCNE↓, 1,   P21↑, 2,   TumCCA↑, 3,  

Proliferation, Differentiation & Cell State

cDC2↓, 1,   ERK↓, 1,  

Migration

Ca+2↑, 1,  

Drug Metabolism & Resistance

eff↓, 1,  
Total Targets: 29

Pathway results for Effect on Normal Cells:


Total Targets: 0

Scientific Paper Hit Count for: Cyt‑c, cyt-c Release into Cytosol
6 Emodin
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#:75  Target#:77  State#:%  Dir#:%
wNotes=0 sortOrder:rid,rpid

 

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