Database Query Results : Silymarin (Milk Thistle) silibinin, , cycE/CCNE

SIL, Silymarin (Milk Thistle) silibinin: Click to Expand ⟱
Features:
Silymarin (Milk Thistle) Flowering herb related to daisy and ragweed family.
Silibinin (INN), also known as silybin is the major active constituent of silymarin, a standardized extract of the milk thistle seeds.
-a flavonoid combination of 65–80% of seven flavolignans; the most important of these include silybin, isosilybin, silychristin, isosilychristin, and silydianin. Silybin is the most abundant compound in around 50–70% in isoforms silybin A and silybin B

-Note half-life 6hrs?.
BioAv not soluble in water, low bioAv (1%). 240mg yielded only 0.34ug/ml plasma level. oral administration of SM (equivalent to 120 mg silibinin), total (unconjugated + conjugated) silibinin concentration in plasma was 1.1–1.3 μg/mL, so can not achieve levels used in most in-vitro studies.
Pathways:
- results for both inducing and reducing ROS in cancer cells. In normal cell seems to consistently lower ROS. Reports show both ROS↑ and ROS↓ in cancer models; systemic pro-oxidant effects may require higher exposures than typical oral dosing, but local or combination contexts may differ. (level in GUT could be much higher (800uM).
- ROS↑ related: MMP↓(ΔΨm), Ca+2↑, Cyt‑c↑, Caspases↑, DNA damage↑, cl-PARP↑,
- Raises AntiOxidant defense in Normal Cells: ROS↓, NRF2↑, SOD↑, GSH↑, Catalase↑,
- lowers Inflammation : NF-kB↓, COX2↓, p38↓(context-dependent; often stress-activated), Pro-Inflammatory Cytokines : NLRP3↓, IL-1β↓, TNF-α↓, IL-6↓, IL-8↓
- inhibit Growth/Metastases : TumMeta↓, TumCG↓, EMT↓, MMPs↓, MMP2↓, MMP9↓, TIMP2, uPA↓, VEGF↓, FAK↓, NF-κB↓, CXCR4↓, TGF-β↓, α-SMA↓, ERK↓
- reactivate genes thereby inhibiting cancer cell growth : HDAC↓, DNMTs↓, P53↑, HSP↓,
- cause Cell cycle arrest : TumCCA↑, cyclin D1↓, cyclin E↓, CDK2↓, CDK4↓,
- inhibits Migration/Invasion : TumCMig↓, TumCI↓, TNF-α↓, FAK↓, ERK↓, EMT↓,
- inhibits glycolysis and ATP depletion : HIF-1α↓, PKM2↓, cMyc↓, GLUT1↓, LDH↓, LDHA↓, HK2↓, PFKs↓, GRP78↑(ER stress), Glucose↓, GlucoseCon↓
- inhibits angiogenesis↓ : VEGF↓, HIF-1α↓, Notch↓, PDGF↓, EGFR↓,
- inhibits Cancer Stem Cells : CSC↓, Hh↓, GLi1↓, β-catenin↓, Notch2↓, OCT4↓,
- Others: PI3K↓, AKT↓, JAK↓, STAT↓, Wnt↓, β-catenin↓, AMPK, ERK↓, JNK, - SREBP (related to cholesterol).
- Synergies: chemo-sensitization, chemoProtective, RadioSensitizer, RadioProtective, Others(review target notes), Neuroprotective, Cognitive, Renoprotection, Hepatoprotective, CardioProtective,

- Selectivity: Cancer Cells vs Normal Cells

Rank Pathway / Axis Cancer Cells Normal Cells TSF Primary Effect Notes / Interpretation
1 ROS / redox buffering + mitochondrial protection Often ↑ stress susceptibility; can support apoptosis when survival signaling is blocked ↓ oxidative stress; mitochondrial protection P, R, G Context-selective redox modulation Silymarin is classically cytoprotective/antioxidant in normal tissues (notably liver), while in tumors it can weaken pro-survival adaptation and increase vulnerability to stressors and therapy.
2 Intrinsic apoptosis (mitochondria → caspases) ↑ apoptosis signaling; ↑ caspase activation ↔ minimal activation G Cell death execution Common downstream outcome in cancer models: apoptosis increases after earlier signaling/redox shifts and/or checkpoint disruption.
3 Cell-cycle control (cyclins/CDKs; checkpoints) ↑ arrest (G1/S or G2/M depending on model) G Cytostasis Typically observed as reduced proliferation with checkpoint engagement; timing usually later than kinase phosphorylation changes.
4 NF-κB inflammatory transcription ↓ NF-κB activity; ↓ inflammatory/pro-survival tone ↔ or protective anti-inflammatory effect R, G Anti-inflammatory / anti-survival transcription NF-κB suppression can reduce tumor-promoting inflammation and blunt stress-adaptive survival programs.
5 JAK/STAT3 axis (incl. PD-L1 / immune escape programs in some models) ↓ STAT3 signaling (context); may ↓ PD-L1 in certain tumor contexts R, G Reduced survival + immune-evasion signaling Reported to attenuate STAT3-driven tumor programs and, in some contexts, reduce immune-suppressive signaling (model dependent).
6 PI3K → AKT → mTOR survival / growth signaling ↓ PI3K/AKT/mTOR signaling (context) R, G Growth/survival suppression Reduced PI3K/AKT/mTOR tone increases sensitivity to apoptosis and can reinforce cell-cycle arrest.
7 MAPK re-wiring (ERK/p38/JNK balance) Stress-MAPK shifts; ERK tone often reduced or re-patterned P, R, G Signal reprogramming Early phosphorylation shifts can precede later gene-expression changes; exact ERK direction is model and dose dependent.
8 Angiogenesis (VEGF and angiogenic factors) ↓ VEGF / angiogenesis outputs G Anti-angiogenic support Typically reflected in reduced pro-angiogenic expression/secretion and angiogenesis-related phenotypes over longer windows.
9 EMT / invasion / migration programs (incl. TGF-β/Smad-associated EMT in some systems) ↓ EMT markers; ↓ migration/invasion G Anti-invasive phenotype Often presents as restoration of epithelial markers and suppression of migration/invasion assays; commonly a later phenotype-level outcome.
10 Xenobiotic handling (Phase I/II enzymes; cytoprotection / chemoprevention framing) May alter carcinogen activation/detox balance ↑ detox / cytoprotection against xenobiotics G Chemopreventive protection A key “dual strategy” theme: protection of normal tissue from toxins/therapy while modulating tumor response pathways.
11 Drug resistance / efflux (MDR phenotype; P-gp-related resistance in some models) May ↓ functional MDR and ↑ chemo sensitivity (context) R, G Chemo-sensitization support Reported synergy with chemotherapy in resistant tumor settings; transporter direction can be context-specific, so present as “reported to reduce functional resistance” rather than a universal single-transporter claim.
12 Immune microenvironment signaling (cytokines / macrophage recruitment in some models) May ↓ pro-tumor cytokine programs and recruitment signals (context) G Anti-inflammatory tumor microenvironment shift Immune-modulatory effects are increasingly discussed, but they are more model-dependent and typically show on longer time scales.

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

  • P: 0–30 min (primary/physical–chemical effects; rapid signaling / phosphorylation shifts)
  • R: 30 min–3 hr (redox signaling + acute stress-response signaling)
  • G: >3 hr (gene-regulatory adaptation and phenotype-level outcomes)


cycE/CCNE, Cyclin E: Click to Expand ⟱
Source:
Type:
Cyclin E regulates multiple downstream molecules, such as the retinoblastoma susceptibility gene (RB1) and the transcription factor E2F.
Cyclin E (Cyclin E1 and Cyclin E2) is the key regulator of the late G1 → S-phase transition.
Cyclin E is a prognostic marker in breast cancer, its altered expression increased with the increasing stage and grade of the tumor.
Cyclin E is a regulatory protein that plays a critical role in the cell cycle, particularly in the transition from the G1 phase to the S phase. Its expression levels can significantly influence cancer progression and patient prognosis.

Cyclin E expression is frequently elevated in various cancers and is generally associated with poor prognosis. Its role in promoting cell cycle progression makes it a potential biomarker for tumor aggressiveness and patient outcomes.


Scientific Papers found: Click to Expand⟱
3290- SIL,    A review of therapeutic potentials of milk thistle (Silybum marianum L.) and its main constituent, silymarin, on cancer, and their related patents
- Analysis, Var, NA
hepatoP↑, well as hepatoprotective agents.
chemoP↑, silymarin could be beneficial to oncology patients, especially for the treatment of the side effects of anticancer chemotherapeutics.
*lipid-P↓, Silymarin has been shown to significantly reduce lipid peroxidation and exhibit anti-oxidant, antihypertensive, antidiabetic, and hepatoprotective effects
*antiOx↑,
tumCV↓, reduces the viability, adhesion, and migration of tumor cells by induction of apoptosis and formation of reactive oxygen species (ROS), reducing glutathione levels, B-cell lymphoma 2 (Bcl-2), survivin, cyclin D1, Notch 1 intracellular domain (NICD),
TumCMig↓,
Apoptosis↑,
ROS↑,
GSH↓,
Bcl-2↓,
survivin↓,
cycD1/CCND1↓,
NOTCH1↓,
BAX↑, as well as enhancing the amount of Bcl-2-associated X protein (Bax) level (
NF-kB↓, The suppression of NK-κB-regulated gene products (e.g., cyclooxygenase-2 (COX-2), lipoxygenase (LOX), inducible nitric oxide synthase (iNOS), tumor necrosis factor (TNF), and interleukin-1 (IL-1)) mediates the anti-inflammatory effect of silymarin
COX2↓,
LOX1↓,
iNOS↓,
TNF-α↓,
IL1↓,
Inflam↓,
*toxicity↓, Silymarin is also safe for humans, hence at therapeutic doses patients demonstrated no negative effects at the high dose of 700 mg, three times a day, for 24 weeks
CXCR4↓, fig 2
EGFR↓,
ERK↓,
MMP↓, reduction in mitochondrial transmembrane potential due to an increase in cytosolic cytochrome complex (Cyt c) levels.
Cyt‑c↑,
TumCCA↑, Moreover, silymarin increased the percentage of cells in the gap 0/gap 1 (G0/G1) phase and decreased the percentage of cells in the synthesis (S)-phase,
RB1↑, concomitant up-regulation of retinoblastoma protein (Rb), p53, cyclin-dependent kinase inhibitor 1 (p21Cip1), and cyclin-dependent kinase inhibitor 1B (p27Kip1)
P53↑,
P21↑,
p27↑,
cycE/CCNE↓, and down-regulation of cyclin D1, cyclin E, cyclin-dependent kinase 4 (CDK4), and phospho-Rb
CDK4↓,
p‑pRB↓,
Hif1a↓, silibinin inhibited proliferation of Hep3B cells due to simultaneous induction of apoptosis and prevented the accumulation
cMyc↓, Silibinin also reduces cellular myelocytomatosis oncogene (c-MYC) expression, a key regulator of cancer metabolism in pancreatic cancer cells
IL1β↓, Silymarin can also inhibit the production of inflammatory cytokines, such as interleukin-1beta (IL-1β), interferon-gamma (IFNγ),
IFN-γ↓,
PCNA↓, ilymarin suppresses the high proliferative activity of cells started with a carcinogen so that it significantly inhibits proliferating cell nuclear antigen (PCNA) and cyclin D1 labeling indices
PSA↓, In another patent, S. marianum has been used as an estrogen receptor β-agonist and an inhibitor of PSA for treating prostate cancer
CYP1A1↓, Silymarin prevents the expression of CYP1A1 and COX-2


* indicates research on normal cells as opposed to diseased cells
Total Research Paper Matches: 1

Pathway results for Effect on Cancer / Diseased Cells:


Redox & Oxidative Stress

CYP1A1↓, 1,   GSH↓, 1,   ROS↑, 1,  

Mitochondria & Bioenergetics

MMP↓, 1,  

Core Metabolism/Glycolysis

cMyc↓, 1,  

Cell Death

Apoptosis↑, 1,   BAX↑, 1,   Bcl-2↓, 1,   Cyt‑c↑, 1,   iNOS↓, 1,   p27↑, 1,   survivin↓, 1,  

Transcription & Epigenetics

p‑pRB↓, 1,   tumCV↓, 1,  

DNA Damage & Repair

P53↑, 1,   PCNA↓, 1,  

Cell Cycle & Senescence

CDK4↓, 1,   cycD1/CCND1↓, 1,   cycE/CCNE↓, 1,   P21↑, 1,   RB1↑, 1,   TumCCA↑, 1,  

Proliferation, Differentiation & Cell State

ERK↓, 1,   NOTCH1↓, 1,  

Migration

TumCMig↓, 1,  

Angiogenesis & Vasculature

EGFR↓, 1,   Hif1a↓, 1,   LOX1↓, 1,  

Immune & Inflammatory Signaling

COX2↓, 1,   CXCR4↓, 1,   IFN-γ↓, 1,   IL1↓, 1,   IL1β↓, 1,   Inflam↓, 1,   NF-kB↓, 1,   PSA↓, 1,   TNF-α↓, 1,  

Clinical Biomarkers

EGFR↓, 1,   PSA↓, 1,  

Functional Outcomes

chemoP↑, 1,   hepatoP↑, 1,  
Total Targets: 41

Pathway results for Effect on Normal Cells:


Redox & Oxidative Stress

antiOx↑, 1,   lipid-P↓, 1,  

Functional Outcomes

toxicity↓, 1,  
Total Targets: 3

Scientific Paper Hit Count for: cycE/CCNE, Cyclin E
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#:154  Target#:378  State#:%  Dir#:%
wNotes=on sortOrder:rid,rpid

 

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