CHr Chrysin
Description: <b>Chrysin</b> is found in passion flower and honey. It is a flavonoid.<br>
-To reach plasma levels that might more closely match the concentrations used in in vitro studies (typically micromolar), considerably high doses or advanced delivery mechanisms would be necessary.<br>
Chrysin is widely summarized as modulating PI3K/Akt and MAPK pathways in cancer.<br>
<br>
-Note <a href="tbResList.php?qv=61&tsv=1109&wNotes=on&exSp=open">half-life</a> 2 hrs,
<a href="tbResList.php?qv=61&tsv=792&wNotes=on&exSp=open">BioAv</a> very poor often <1%
<br>
Pathways:<br>
<a href="https://cancerci.biomedcentral.com/articles/10.1186/s12935-021-01906-y/figures/3">Graphical Pathways</a><br>
<br>
<!-- ROS : MMP↓, ER Stress↑, Ca+2↑, Cyt‑c↑, Casp3↑, Casp9↑, DNAdam↑, UPR↑, cl-PARP↑-->
- may induce
<a href="tbResList.php?qv=61&tsv=275&wNotes=on">ROS</a> production<br>
- ROS↑ related:
<a href="tbResList.php?qv=61&tsv=197&wNotes=on&word=MMP↓">MMP↓</a>(ΔΨm),
<a href="tbResList.php?qv=61&tsv=103&wNotes=on">ER Stress↑</a>,
<a href="tbResList.php?qv=61&tsv=459&wNotes=on">UPR↑</a>,
<a href="tbResList.php?qv=61&tsv=356&wNotes=on">GRP78↑</a>,
<a href="tbResList.php?qv=61&tsv=38&wNotes=on&word=Ca+2↑">Ca+2↑</a>,
<a href="tbResList.php?qv=61&tsv=77&wNotes=on">Cyt‑c↑</a>,
<a href="tbResList.php?qv=61&wNotes=on&word=Casp">Caspases↑</a>,
<a href="tbResList.php?qv=61&tsv=82&wNotes=on&word=DNAdam↑">DNA damage↑</a>,
<a href="tbResList.php?qv=61&tsv=239&wNotes=on">cl-PARP↑</a>,
<a href="tbResList.php?qv=61&wNotes=on&word=HSP">HSP↓</a>
<br>
<!-- ANTIOXIDANT : NRF2, SOD, GSH, CAT, HO-1, GPx, GPX4, -->
- May Lower AntiOxidant defense in Cancer Cells:
<a href="tbResList.php?qv=61&tsv=226&wNotes=on&word=NRF2↓">NRF2↓</a>,
<a href="tbResList.php?qv=61&tsv=137&wNotes=on&word=GSH↓">GSH↓</a>
<a href="tbResList.php?qv=61&tsv=597&wNotes=on">HO1↓</a>
<br>
- May Raise
<a href="tbResList.php?qv=61&tsv=1103&wNotes=on&word=antiOx↑">AntiOxidant</a>
defense in Normal Cells:
<a href="tbResList.php?qv=61&tsv=275&wNotes=on&word=ROS↓">ROS↓</a>,
<a href="tbResList.php?qv=61&tsv=226&wNotes=on&word=NRF2↑">NRF2↑</a>,
<a href="tbResList.php?qv=61&tsv=298&wNotes=on&word=SOD↑">SOD↑</a>,
<a href="tbResList.php?qv=61&tsv=137&wNotes=on&word=GSH↑">GSH↑</a>,
<a href="tbResList.php?qv=61&tsv=46&wNotes=on&word=Catalase↑">Catalase↑</a>,
<br>
<!-- INFLAMMATION : NF-kB↓, COX2↓, COX2↓ PRO-INFL CYTOKINES: IL-1β↓, TNF-α↓, IL-6↓, IL-8↓, -->
- lowers
<a href="tbResList.php?qv=61&tsv=953&wNotes=on&word=Inflam">Inflammation</a> :
<a href="tbResList.php?qv=61&tsv=214&wNotes=on&word=NF-kB↓">NF-kB↓</a>,
<a href="tbResList.php?qv=61&tsv=66&wNotes=on&word=COX2↓">COX2↓</a>,
Pro-Inflammatory Cytokines :
<a href="tbResList.php?qv=61&tsv=978&wNotes=on&word=IL1β↓">IL-1β↓</a>,
<a href="tbResList.php?qv=61&tsv=309&wNotes=on&word=TNF-α↓">TNF-α↓</a>,
<a href="tbResList.php?qv=61&tsv=158&wNotes=on&word=IL6↓">IL-6↓</a>,
<br>
<!-- GROWTH/METASTASES : EMT↓, MMPs↓, MMP2↓, MMP9↓, IGF-1, uPA↓, VEGF↓, ERK↓
inhibiting metastasis-associated proteins such as ROCK1, FAK, (RhoA), NF-κB and u-PA, MMP-1 and MMP-13.-->
- inhibit Growth/Metastases :
<a href="tbResList.php?qv=61&tsv=604&wNotes=on">TumMeta↓</a>,
<a href="tbResList.php?qv=61&tsv=323&wNotes=on">TumCG↓</a>,
<a href="tbResList.php?qv=61&tsv=96&wNotes=on">EMT↓</a>,
<a href="tbResList.php?qv=61&tsv=201&wNotes=on">MMP2↓</a>,
<a href="tbResList.php?qv=61&tsv=203&wNotes=on">MMP9↓</a>,
<a href="tbResList.php?qv=61&tsv=308&wNotes=on">TIMP2</a>,
<a href="tbResList.php?qv=61&tsv=428&wNotes=on">uPA↓</a>,
<a href="tbResList.php?qv=61&tsv=334&wNotes=on">VEGF↓</a>,
<a href="tbResList.php?qv=61&tsv=1284&wNotes=on">ROCK1↓</a>,
<a href="tbResList.php?qv=61&tsv=110&wNotes=on">FAK↓</a>,
<a href="tbResList.php?qv=61&tsv=273&wNotes=on">RhoA↓</a>,
<a href="tbResList.php?qv=61&tsv=214&wNotes=on">NF-κB↓</a>,
<a href="tbResList.php?qv=61&tsv=105&wNotes=on">ERK↓</a>
<br>
<!-- REACTIVATE GENES : HDAC↓, DNMT1↓, DNMT3A↓, EZH2↓, P53↑, -->
- reactivate genes thereby inhibiting cancer cell growth :
<a href="tbResList.php?qv=61&tsv=140&wNotes=on">HDAC↓</a>,
<a href="tbResList.php?qv=61&tsv=236&wNotes=on">P53↑</a>,
<a href="tbResList.php?qv=61&wNotes=on&word=HSP">HSP↓</a>,
<br>
<!-- CELL CYCLE ARREST : TumCCA↑, cyclin D1↓, cyclin E↓, CDK2↓, CDK4↓, CDK6↓ -->
- cause Cell cycle arrest :
<a href="tbResList.php?qv=61&tsv=322&wNotes=on">TumCCA↑</a>,
<a href="tbResList.php?qv=61&tsv=73&wNotes=on">cyclin D1↓</a>,
<a href="tbResList.php?qv=61&tsv=467&wNotes=on">CDK2↓</a>,
<a href="tbResList.php?qv=61&tsv=894&wNotes=on">CDK4↓</a>,
<br>
<!-- MIGRATION/INVASION : TumCMig↓, TumCI↓, FAK↓, ERK↓, -->
- inhibits Migration/Invasion :
<a href="tbResList.php?qv=61&tsv=326&wNotes=on">TumCMig↓</a>,
<a href="tbResList.php?qv=61&tsv=324&wNotes=on">TumCI↓</a>,
<a href="tbResList.php?qv=61&tsv=110&wNotes=on">FAK↓</a>,
<a href="tbResList.php?qv=61&tsv=105&wNotes=on">ERK↓</a>,
<a href="tbResList.php?qv=61&tsv=96&wNotes=on">EMT↓</a>,
<a href="tbResList.php?qv=61&tsv=1117&wNotes=on">TOP1↓</a>,
<a href="tbResList.php?qv=61&tsv=657&wNotes=on">TET1↓</a>,
<br>
<!-- GLYCOLYSIS : ATP↓, HIF-1α↓, PKM2↓, cMyc↓, PDK1↓, GLUT1↓, LDHA↓, HK2↓, Glucose↓, GlucoseCon↓, lactateProd, OXPHOS -->
- inhibits
<a href="tbResList.php?qv=61&tsv=129&wNotes=on">glycolysis</a>
and
<a href="tbResList.php?qv=61&tsv=21&wNotes=on&word=ATP↓">ATP depletion</a> :
<a href="tbResList.php?qv=61&tsv=143&wNotes=on">HIF-1α↓</a>,
<a href="tbResList.php?qv=61&tsv=35&wNotes=on">cMyc↓</a>,
<a href="tbResList.php?qv=61&tsv=566&wNotes=on&word=GLUT">GLUT1↓</a>,
<a href="tbResList.php?qv=61&tsv=906&wNotes=on">LDH↓</a>,
<a href="tbResList.php?qv=61&tsv=773&wNotes=on">HK2↓</a>,
<a href="tbResList.php?qv=61&wNotes=on&word=PDK">PDKs↓</a>,
<a href="tbResList.php?qv=61&tsv=773&wNotes=on">HK2↓</a>,
<a href="tbResList.php?qv=61&tsv=356&wNotes=on">GRP78↑</a>,
<a href="tbResList.php?qv=61&tsv=623&wNotes=on">GlucoseCon↓</a>
<br>
<!-- ANGIOGENESIS : VEGF↓, VEGFR2↓, HIF-1α↓, NOTCH↓, FGF↓, PDGF↓, EGFR↓ ITG(Integrins↓)-->
- inhibits
<a href="tbResList.php?qv=61&tsv=447&wNotes=on">angiogenesis↓</a> :
<a href="tbResList.php?qv=61&tsv=334&wNotes=on">VEGF↓</a>,
<a href="tbResList.php?qv=61&tsv=143&wNotes=on">HIF-1α↓</a>,
<a href="tbResList.php?qv=61&wNotes=on&word=NOTCH">Notch↓</a>,
<a href="tbResList.php?qv=61&tsv=361&wNotes=on">PDGF↓</a>,
<a href="tbResList.php?qv=61&tsv=94&wNotes=on&word=EGFR↓">EGFR↓</a>,
<br>
<!-- OTHERS : -->
- Others: <a href="tbResList.php?qv=61&tsv=252&wNotes=on">PI3K↓</a>,
<a href="tbResList.php?qv=61&tsv=4&wNotes=on">AKT↓</a>,
<a href="tbResList.php?qv=61&wNotes=on&word=STAT">STAT↓</a>,
<a href="tbResList.php?qv=61&tsv=377&wNotes=on">Wnt↓</a>,
<a href="tbResList.php?qv=61&tsv=9&wNotes=on">AMPK↓</a>,
<a href="tbResList.php?qv=61&tsv=105&wNotes=on">ERK↓</a>,
<a href="tbResList.php?qv=61&tsv=168&wNotes=on">JNK</a>,
<a href="tbResList.php?qv=61&tsv=825&wNotes=on">TrxR</a>,
<br>
<!-- SYNERGIES : -->
- Synergies:
<a href="tbResList.php?qv=61&tsv=1106&wNotes=on">chemo-sensitization</a>,
<a href="tbResList.php?qv=61&tsv=1171&wNotes=on">chemoProtective</a>,
<a href="tbResList.php?qv=61&tsv=1107&wNotes=on">RadioSensitizer</a>,
<a href="tbResList.php?qv=61&tsv=961&esv=2&wNotes=on&exSp=open">Others(review target notes)</a>,
<a href="tbResList.php?qv=61&tsv=1105&wNotes=on">Neuroprotective</a>,
<a href="tbResList.php?qv=61&tsv=557&wNotes=on">Cognitive</a>,
<a href="tbResList.php?qv=61&tsv=1175&wNotes=on">Renoprotection</a>,
<a href="tbResList.php?qv=61&tsv=1179&wNotes=on">Hepatoprotective</a>,
<a href="tbResList.php?&qv=61&tsv=1188&wNotes=on">CardioProtective</a>,
<br>
<br>
<!-- SELECTIVE: -->
- Selectivity:
<a href="tbResList.php?qv=61&tsv=1110&wNotes=on">Cancer Cells vs Normal Cells</a>
<br>
<br>
<!-- Chrysin (CHr / Chrysin) — Time-Scale Flagged Pathway Table -->
<table border="1" cellpadding="4" cellspacing="0">
<tr>
<th>Rank</th>
<th>Pathway / Axis</th>
<th>Cancer Cells</th>
<th>Normal Cells</th>
<th>TSF</th>
<th>Primary Effect</th>
<th>Notes / Interpretation</th>
</tr>
<tr>
<td>1</td>
<td>PI3K → AKT (± mTOR) survival axis</td>
<td>↓ PI3K/AKT (often ↓ p-AKT; downstream growth signals ↓)</td>
<td>↔</td>
<td>R, G</td>
<td>Growth/survival suppression</td>
<td>Frequently reported hub effect; contributes to reduced proliferation and sensitization to stress/apoptosis programs.</td>
</tr>
<tr>
<td>2</td>
<td>Intrinsic apoptosis (p53/Bcl-2 family → caspase-9/3)</td>
<td>↑ p53 axis (context); Bax↑/Bcl-2↓; ↑ caspase-9/3; apoptosis ↑</td>
<td>↔ (generally less activation)</td>
<td>G</td>
<td>Apoptosis execution</td>
<td>Common endpoint across many tumor models; often downstream of survival-pathway suppression and stress signaling.</td>
</tr>
<tr>
<td>3</td>
<td>ER stress / UPR (PERK and related arms)</td>
<td>ER stress ↑; UPR activation ↑</td>
<td>↔</td>
<td>R, G</td>
<td>Stress-to-death coupling</td>
<td>ER stress has been directly shown in chrysin-treated cancer cells and can couple to apoptosis.</td>
</tr>
<tr>
<td>4</td>
<td>JAK / STAT3 signaling</td>
<td>↓ STAT3 signaling (context)</td>
<td>↔</td>
<td>R, G</td>
<td>Anti-survival transcription</td>
<td>STAT3 inhibition is reported in cancer models and often aligns with reduced proliferation and increased apoptosis.</td>
</tr>
<tr>
<td>5</td>
<td>ROS / oxidative stress (context-dependent)</td>
<td>ROS modulation (often ↑ mitochondrial ROS in tumor models)</td>
<td>↔ / antioxidant behavior in some contexts</td>
<td>P, R, G</td>
<td>Stress amplifier (variable)</td>
<td>Direction depends on dose/model; avoid absolute “ROS always ↑/↓”. Oxidative stress + DDR has been linked to anti-angiogenic effects in vivo in melanoma models.</td>
</tr>
<tr>
<td>6</td>
<td>MAPK re-wiring (ERK / JNK / p38)</td>
<td>MAPK shifts; JNK/p38 often stress-activated; ERK variable</td>
<td>↔</td>
<td>P, R, G</td>
<td>Signal reprogramming</td>
<td>MAPK effects differ by cell line; chrysin can suppress JNK/ERK signaling to reduce MMP-9 in some models.</td>
</tr>
<tr>
<td>7</td>
<td>Cell-cycle arrest / proliferation control</td>
<td>Cell-cycle arrest ↑; proliferation ↓</td>
<td>↔</td>
<td>G</td>
<td>Cytostasis</td>
<td>Often observed as later phenotype-level outcomes, downstream of signaling changes.</td>
</tr>
<tr>
<td>8</td>
<td>Invasion / metastasis (MMP-9; EMT programs)</td>
<td>MMP-9 ↓; migration/invasion ↓ (context)</td>
<td>↔</td>
<td>G</td>
<td>Anti-invasive phenotype</td>
<td>Chrysin can reduce MMP-9 expression via AP-1 suppression and MAPK pathway effects in certain cancer models.</td>
</tr>
<tr>
<td>9</td>
<td>Angiogenesis (VEGF/angiogenic outputs)</td>
<td>Angiogenesis outputs ↓ (context)</td>
<td>↔</td>
<td>G</td>
<td>Anti-angiogenic support</td>
<td>In melanoma models, chrysin has been associated with angiogenesis regression linked to oxidative stress and DNA damage response.</td>
</tr>
<tr>
<td>10</td>
<td>Bioavailability constraint (oral PK limitation)</td>
<td>Systemic exposure often low without formulation</td>
<td>—</td>
<td>—</td>
<td>Translation constraint</td>
<td>Native chrysin oral bioavailability is extremely low due to poor solubility and extensive glucuronidation/sulfation with efflux; formulation strategies are commonly required for systemic effects.</td>
</tr>
</table>
<p><b>Time-Scale Flag (TSF):</b> P / R / G</p>
<ul>
<li><b>P</b>: 0–30 min (primary/physical–chemical effects; rapid signaling / phosphorylation shifts)</li>
<li><b>R</b>: 30 min–3 hr (acute stress-response and redox signaling)</li>
<li><b>G</b>: >3 hr (gene-regulatory adaptation and phenotype-level outcomes)</li>
</ul>