Garcinol / Casp8 Cancer Research Results

GAR, Garcinol: Click to Expand ⟱
Features:
Found in dried fruit rind of Garcinia Indica with anti-inflammatory, antioxidant, anticancer, and antibacterial properties
Garcinia Cambogia Extract.
"We conclude that patients who are T-cadherin-positive could especially benefit from a therapy with garcinol."

🔬1) NF-κB & AP-1 Suppression
Garcinol inhibits NF-κB and AP-1 transcriptional activity in multiple cancer cell systems, reducing pro-inflammatory and pro-survival gene expression.
📚 2) Epigenetic Regulation
Garcinol is one of the few natural products shown to inhibit p300/CBP histone acetyltransferases, shifting chromatin acetylation and influencing gene expression (differentiation, apoptosis, EMT). This is more specific than general “HDAC modulation.”
💀 3) Apoptosis
Studies report modulation of the Bcl-2 family and increased caspase activity, but this is often downstream of transcription/epigenetic changes, not a direct redox trigger.
🧬 4) Cell Cycle & Proliferation
Lower Cyclin D1, higher p21/p27, and G1/S arrest are common phenotypes.
🧭 5) Invasion & Angiogenesis
Garcinol reduces MMP-2/9 and angiogenic markers in multiple tumor cell assays.

Rank Pathway / Axis Cancer Cells Normal Cells TSF Primary Effect Notes / Interpretation
1 NF-κB / AP-1 signaling NF-κB ↓; AP-1 ↓; downstream pro-survival/inflammatory outputs ↓ ↔ or anti-inflammatory modulation in immune cells R, G Pro-survival & inflammatory transcription suppression Garcinol is reported to inhibit NF-κB and AP-1 transcriptional activity, reducing inflammation and pro-growth signaling in multiple models.
2 Epigenetic regulation (HAT/HDAC modulation) Inhibition of p300/CBP histone acetyltransferase; altered acetylation patterns ↔ baseline epigenetic state R, G Gene regulatory reprogramming Garcinol directly inhibits histone acetyltransferases (especially p300/CBP), influencing chromatin state and gene expression linked to differentiation and proliferation.
3 Intrinsic apoptosis (mitochondrial / caspase-linked) ↑ Bax/Bak; ↓ Bcl-2/Bcl-xL; ↑ caspase-9/3 ↔ minimal activation in normal cells G Execution of apoptosis Often downstream of stress and survival pathway modulation; not as dominant as classic pro-oxidant molecules but consistent in many cell lines.
4 Cell-cycle checkpoints (p21/p27; Cyclin D1) Cell-cycle arrest (often G1/S); Cyclin D1 ↓ ↔ G Cytostasis Frequently reported as later phenotypic outcome tied to reduced proliferation.
5 Invasion / metastasis programs (MMPs / EMT) MMP-2/9 ↓; invasion/migration ↓; EMT markers ↓ ↔ G Anti-invasive phenotype Linked mechanistically to NF-κB/AP-1 and epigenetic changes influencing MMP expression and EMT regulators.
6 Angiogenesis signaling (VEGF & pro-angiogenic factors) VEGF ↓; pro-angiogenic markers ↓ ↔ G Anti-angiogenic support Sometimes measured in later in vivo or emulated assay systems; reflects downstream gene expression changes.
7 PI3K/AKT / survival kinases ↓ PI3K/AKT signaling (model-dependent) ↔ R, G Survival/growth suppression Modulation of survival kinases is reported in some systems but not a universal primary mechanism.
8 ROS / oxidative stress (context–dependent) ROS modulation (inconsistent across models) ↔ P, R, G Conditional stress modulation Some studies report mild ROS changes, but garcinol is not a strong pro-oxidant driver like BetA or curcumin in cancer cells.
9 Chemo-sensitization / combination relevance Enhanced sensitivity to chemotherapeutics (context) — G Combination leverage Combination effects are reported in selected cell lines/model systems; not universal.
10 Bioavailability constraint (oral exposure / formulation dependence) Systemic exposure often limited without enhanced delivery — — Translation constraint Poor native bioavailability is common across polyphenols/bzp molecules; formulations improve systemic exposure.

Time-Scale Flag (TSF): P / R / G

  • P: 0–30 min (primary/physical-chemical effects; rapid signaling / kinase shifts)
  • R: 30 min–3 hr (acute stress-response and transcription signaling)
  • G: >3 hr (gene-regulatory adaptation and phenotype-level outcomes)
Casp8, CASP8, caspase 8, apoptosis-related cysteine peptidase: Click to Expand ⟱
Source: CGL-Driver Genes
Type: TSG
Caspase-8 is a unique member of caspases with a dual role in cell death and survival. Caspase-8 expression is often lost in some tumors, but increased in others, indicating a potential pro-survival function in cancer.
Caspase-8 (Casp8) acts as an initiator in cell apoptosis signaling. However, the role of Casp8 in tuning the tumor immune microenvironment remains controversial due to the complicated crosstalk between immune-tolerogenic apoptotic cell death and immunogenic cell death cascades.
Scientific Papers found: Click to Expand⟱
821- GAR,    Garcinol inhibits cell growth in hepatocellular carcinoma Hep3B cells through induction of ROS-dependent apoptosis
- in-vitro, Liver, Hep3B
ROS↑, CHOP↑, MMP↓, Bax:Bcl2↑, Casp8↑, Casp3↑, Casp9↑, cl‑PARP↑, DFF45↑,
823- GAR,    Garcinol Potentiates TRAIL-Induced Apoptosis through Modulation of Death Receptors and Antiapoptotic Proteins
- in-vitro, BC, MCF-7 - in-vitro, Nor, MCF10 - in-vitro, CRC, HCT116
Casp3↑, Casp9↑, Casp8↑, DR5↑, survivin↓, Bcl-2↓, XIAP↓, cFLIP↓, BAX↑, Cyt‑c↑, ROS↑, GSH↓, *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 ⓘ

GSH↓, 1,   ROS↑, 2,  

Mitochondria & Bioenergetics ⓘ

MMP↓, 1,   XIAP↓, 1,  

Cell Death ⓘ

BAX↑, 1,   Bax:Bcl2↑, 1,   Bcl-2↓, 1,   Casp3↑, 2,   Casp8↑, 2,   Casp9↑, 2,   cFLIP↓, 1,   Cyt‑c↑, 1,   DR5↑, 1,   survivin↓, 1,  

Protein Folding & ER Stress ⓘ

CHOP↑, 1,  

DNA Damage & Repair ⓘ

DFF45↑, 1,   cl‑PARP↑, 1,  
Total Targets: 17

Pathway results for Effect on Normal Cells:


Drug Metabolism & Resistance ⓘ

eff↓, 1,  
Total Targets: 1

Scientific Paper Hit Count for: Casp8, CASP8, caspase 8, apoptosis-related cysteine peptidase
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#:83  Target#:44  State#:%  Dir#:%
  wNotes=0  sortOrder:rid,rpid

 

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