Database Query Results : Luteolin, , UPR

LT, Luteolin: Click to Expand ⟱
Features:
Luteolin a Flavonoid found in celery, parsley, broccoli, onion leaves, carrots, peppers, cabbages, apple skins, and chrysanthemum flowers.
-MDR1 expression, MMP-9, IGF-1 and Epithelial to mesenchymal transition.

*** ACTIVE WORK IN PROGRESS**

-Note half-life 2–3 hours
BioAv low, but could be improved with Res, or blend of castor oil, kolliphor and polyethylene glycol
Pathways:
- induce ROS production in cancer cell but a few reports of reduction. Always seems to reduce ROS in normal cells.
- ROS↑ related: MMP↓(ΔΨm), ER Stress↑, UPR, GRP78↑, Ca+2↑, Cyt‑c↑, Caspases↑, DNA damage↑, cl-PARP↑, HSP↓
- Lowers AntiOxidant defense in Cancer Cells: NRF2↓, SOD↓, GSH↓ Catalase↓ HO1↓ GPx↓
- Raises AntiOxidant defense in Normal Cells: ROS↓, NRF2↑, SOD↑, GSH↑, Catalase↑,
- lowers Inflammation : NF-kB↓, COX2↓, p38↓, Pro-Inflammatory Cytokines : IL-1β↓, TNF-α↓, IL-6↓,
- inhibit Growth/Metastases : TumMeta↓, TumCG↓, EMT↓, MMP2↓, MMP9↓, TIMP2, IGF-1↓, VEGF↓, FAK↓, RhoA↓, NF-κB↓, CXCR4↓, ERK↓
- reactivate genes thereby inhibiting cancer cell growth : HDAC↓, DNMT1↓, DNMT3A↓, EZH2↓, P53↑, HSP↓,
- cause Cell cycle arrest : TumCCA↑, cyclin D1↓, cyclin E↓, CDK2↓, CDK4↓, CDK6↓,
- inhibits Migration/Invasion : TumCMig↓, FAK↓, ERK↓, EMT↓, TOP1↓, TET1↓,
- inhibits glycolysis and ATP depletion : HIF-1α↓, PKM2↓, cMyc↓, LDHA↓, HK2↓, GRP78↑,
- inhibits angiogenesis↓ : VEGF↓, HIF-1α↓, Notch↓, PDGF↓, EGFR↓, Integrins↓,
- Others: PI3K↓, AKT↓, STAT↓, Wnt↓, β-catenin↓, AMPK, ERK↓, JNK, TrxR**, - Shown to modulate the nuclear translocation of SREBP-2 (related to cholesterol).
- Synergies: chemo-sensitization, chemoProtective, RadioSensitizer, Others(review target notes), Neuroprotective, Renoprotection, Hepatoprotective, CardioProtective,

- Selectivity: Cancer Cells vs Normal Cells


UPR, Unfolded Protein Response: Click to Expand ⟱
Source:
Type:
Cellular stress response related to the endoplasmic reticulum (ER) stress, which involves protein folding, quality control, and signaling pathways. The unfolded protein response (UPR) is the cells' way of maintaining the balance of protein folding in the endoplasmic reticulum. (UPR) is triggered by the presence of misfolded proteins in the endoplasmic reticulum.
The UPR is a cellular stress response activated by the accumulation of unfolded or misfolded proteins in the endoplasmic reticulum (ER).
- It is primarily mediated by three ER-resident sensors: IRE1α, PERK, and ATF6.

Cancer cells often experience high levels of protein synthesis, hypoxia, nutrient deprivation, and oxidative stress, all of which can activate the UPR.
– Numerous studies have reported that key UPR components (e.g., GRP78/BiP, IRE1α, PERK, CHOP) are overexpressed in various malignancies such as breast, pancreatic, lung, and prostate cancers.

Unfolded Protein Response is typically upregulated in cancers and is associated with poorer prognosis due to its role in promoting cell survival, adaptation to stress, and therapeutic resistance. Although the UPR harbors the potential for tumor-suppressive (apoptotic) effects under severe stress conditions, its predominant activation in tumors supports an adaptive, protumorigenic state that facilitates cancer progression. Targeting UPR components and modulating this balance remain promising therapeutic strategies.


Scientific Papers found: Click to Expand⟱
4292- LT,    Luteolin for neurodegenerative diseases: a review
- Review, AD, NA - Review, Park, NA - Review, MS, NA - Review, Stroke, NA
*Inflam↓, luteolin, showing significant anti-inflammatory, antioxidant, and neuroprotective activity.
*antiOx↑,
*neuroP↑,
*BioAv↝, To increase the bioavailability of luteolin, several delivery methods have been developed; the most thoroughly studied include lipid carriers like liposomes and nanoformulations
*BBB↑, luteolin given intraperitoneally (ip) to mice can readily cross the blood-brain barrier (BBB) and enter the brain
*TNF-α↓, nhibiting pro-inflammatory mediators such as cyclooxygenase-2 (COX-2), nitric oxide (NO), TNF-α, IL-β, IL-6, IL-8, IL-31, and IL-33 in several in vitro models of AD
*IL1β↓,
*IL6↓,
*IL8↓,
*IL33↓,
*NF-kB↓, inhibition of the NF-кB pathway
*BACE↓, leads to the inhibition of a downstream target– β-site amyloid precursor protein cleaving enzyme (BACE1), which is a key mediator in forming Aβ fibrils in AD pathology
*ROS↓, anti-oxidant activity mainly by reducing ROS levels and increasing SOD activity in in vitro models of AD
*SOD↑,
*HO-1↑, increase the expression of antioxidant enzymes such as heme oxygenase-1 (HO-1) via the nuclear factor erythroid 2–related factor 2/ antioxidant responsive element (Nrf-2/ARE) complex activation
*NRF2↑,
*Casp3↓, reducing the levels of caspase-3 and − 9 and improving the B-cell lymphoma protein 2/Bcl-2-associated X protein (Bcl-2/Bax) ratio, as it was reported in in vitro models of AD
*Casp9↑,
*Bax:Bcl2↓,
*UPR↑, enhancing the unfolded protein response (UPR) pathway, leading to an increase in endoplasmic reticulum (ER) chaperone GRP78 and a decrease in the expression of UPR-targeted pro-apoptotic genes via the MAPK pathway.
*GRP78/BiP↑,
*Aβ↓, evidence that suggests that luteolin can directly influence the formation of Aβ plaques by selectively inhibiting the activity of N-acetyl-α-galactosaminyltransferase (ppGalNAc-T) isoforms
*GSK‐3β↓, inactivating the glycogen synthase kinase-3 alpha (GSK-3α) isoform, suppressing Aβ and promoting tau disaggregation
*tau↓,
*CREB↑, luteolin promoted phosphorylation and activation of cAMP response element-binding protein (CREB) leading to the increased miR-132 expression, and eventually neurite outgrowth in PC12 cells
*ATP↑, ROS production was decreased by 40%, MMP levels were restored close to control N2a levels (202%), and ATP levels were improved by 444%).
*cognitive↑, protective effect of luteolin against cognitive dysfunction was also reported in the streptozotocin
*BloodF↑, Luteolin increased regional cerebral blood flow values, alleviated the leakage of the lumen of vessels, and protected the integrity of BBB
*BDNF↑, increasing the level of brain-derived neurotrophic factor (BDNF) and tyrosine kinase receptor (TrkB) expression in the cerebral cortex
*TrkB↑,
*memory↑, luteolin supplementation significantly ameliorated memory and cognitive deficits in 3 × Tg-AD mice.
*PPARγ↑, attenuated mitochondrial dysfunction via peroxisome proliferator-activated receptor gamma (PPARγ) activation.
*eff↑, combination of luteolin with another compound– l-theanine (an amino acid found in tea) also improved AD-like symptoms in the Aβ25–35-treated rats

2903- LT,    Luteolin induces apoptosis by ROS/ER stress and mitochondrial dysfunction in gliomablastoma
- in-vitro, GBM, U251 - in-vitro, GBM, U87MG - in-vivo, NA, NA
ER Stress↑, Luteolin induced a lethal endoplasmic reticulum stress response and mitochondrial dysfunction in glioblastoma cells by increasing intracellular reactive oxygen species (ROS) levels.
ROS↑,
PERK↑, Luteolin induced expression of ER stress-associated proteins, including phosphorylation of PERK, eIF2α, ATF4, CHOP and cleaved-caspase 12.
eIF2α↑,
ATF4↑,
CHOP↑,
Casp12↑,
eff↓, Inhibition of ROS production by anti-oxidant N-acetylcysteine could reverse luteolin-induced ER stress and mitochondrial pathways activation as well as apoptosis.
UPR↑, Researches indicate that abnormalities in ER function can cause ER stress, resulting in unfolded protein response (UPR),
MMP↓, integrity of mitochondrial membranes potential decreased in U87MG cells after treatment of 40 uM luteolin
Cyt‑c↑, release of cytochrome C to cytoplasm was elevated in U251MG cells
Bcl-2↓, significantly decreased the expression of anti-apoptotic protein Bcl-2 and increased the expression of pro-apoptotic protein Bax in U251MG and U87MG glioblastoms cells.
BAX↑,
TumCG↓, Luteolin inhibited tumor growth in a xenograft mouse model
Weight∅, luteolin did not affect body weight, alanine aminotransferase (ALT) or aspartate transaminase (AST)
ALAT∅,
AST∅,


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

Results for Effect on Cancer/Diseased Cells:
ALAT∅,1,   AST∅,1,   ATF4↑,1,   BAX↑,1,   Bcl-2↓,1,   Casp12↑,1,   CHOP↑,1,   Cyt‑c↑,1,   eff↓,1,   eIF2α↑,1,   ER Stress↑,1,   MMP↓,1,   PERK↑,1,   ROS↑,1,   TumCG↓,1,   UPR↑,1,   Weight∅,1,  
Total Targets: 17

Results for Effect on Normal Cells:
antiOx↑,1,   ATP↑,1,   Aβ↓,1,   BACE↓,1,   Bax:Bcl2↓,1,   BBB↑,1,   BDNF↑,1,   BioAv↝,1,   BloodF↑,1,   Casp3↓,1,   Casp9↑,1,   cognitive↑,1,   CREB↑,1,   eff↑,1,   GRP78/BiP↑,1,   GSK‐3β↓,1,   HO-1↑,1,   IL1β↓,1,   IL33↓,1,   IL6↓,1,   IL8↓,1,   Inflam↓,1,   memory↑,1,   neuroP↑,1,   NF-kB↓,1,   NRF2↑,1,   PPARγ↑,1,   ROS↓,1,   SOD↑,1,   tau↓,1,   TNF-α↓,1,   TrkB↑,1,   UPR↑,1,  
Total Targets: 33

Scientific Paper Hit Count for: UPR, Unfolded Protein Response
Filter Conditions: Pro/AntiFlg:%  IllCat:%  CanType:%  Cells:%  prod#:118  Target#:459  State#:%  Dir#:%
wNotes=on sortOrder:rid,rpid

 

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