PERK Cancer Research Results

PERK, protein kinase-like ER kinase: Click to Expand ⟱
Source:
Type:
PERK is a type of kinase that is activated in response to endoplasmic reticulum (ER) stress, which occurs when the ER is overwhelmed with unfolded or misfolded proteins. Once activated, PERK phosphorylates and activates the eukaryotic translation initiation factor 2 alpha (eIF2α), leading to the attenuation of global protein synthesis and the induction of specific genes involved in the UPR.
PERK is overexpressed in various types of cancer, including breast, lung, and colon cancer, and that its expression is often associated with poor prognosis.
PERK has been shown to have both tumor-suppressive and tumor-promoting roles, depending on the context.
-PERK, as the sensor of ER stress.
Scientific Papers found: Click to Expand⟱
2676- BBR,    Berberine protects rat heart from ischemia/reperfusion injury via activating JAK2/STAT3 signaling and attenuating endoplasmic reticulum stress
- in-vivo, Nor, NA - in-vivo, CardioV, NA
*cardioP↑, Pretreatment with BBR significantly reduced MI/R-induced myocardial infarct size, improved cardiac function, and suppressed myocardial apoptosis and oxidative damage.
*ROS↓,
*ER Stress↓, pretreatment with BBR suppressed MI/R-induced ER stress
*p‑PERK↓, evidenced by down-regulating the phosphorylation levels of myocardial PERK and eIF2α and the expression of ATF4 and CHOP in heart tissues.
*p‑eIF2α↓,
*ATF4↓,
CHOP↓,
*JAK2↑, Pretreatment with BBR also activated the JAK2/STAT3 signaling pathway in heart tissues
*STAT3↑,
*UPR↓, Therefore, reducing excessive UPR, also referred to as ER stress, is of great importance in ameliorating MI/R injury.

2679- BBR,    Berberine Improves Behavioral and Cognitive Deficits in a Mouse Model of Alzheimer’s Disease via Regulation of β-Amyloid Production and Endoplasmic Reticulum Stress
- in-vivo, AD, NA
*cognitive↑, berberine could improve cognitive deficits in the triple-transgenic mouse model of Alzheimer’s disease (3 × Tg AD) mice.
PERK↓, berberine treatment may inhibit PERK/eIF2α signaling-mediated BACE1 translation, thus reducing Aβ production and resultant neuronal apoptosis
*eIF2α↓,
*neuroP↑, berberine may have neuroprotective effects, via attenuation of ER stress and oxidative stress.
*ER Stress↓,
*ROS↓,

2683- BBR,    Berberine reduces endoplasmic reticulum stress and improves insulin signal transduction in Hep G2 cells
- in-vitro, Liver, HepG2
JNK↓, while the activation of JNK was blocked
p‑PERK↓, phosphorylation both on PERK and eIF2α were inhibited in cells pretreated with berberine.
p‑eIF2α↓,
*ER Stress↓, antidiabetic effect of berberine in Hep G2 cells maybe related to attenuation of ER stress

3202- EGCG,    Epigallocatechin-3-gallate enhances ER stress-induced cancer cell apoptosis by directly targeting PARP16 activity
- in-vitro, Cerv, HeLa - in-vitro, HCC, QGY-7703
PARP16↓, (EGCG) as a potential inhibitor of PARP16.
p‑PERK↓, EGCG suppressed the ER stress-induced phosphorylation of PERK and the transcription of unfolded protein response-related genes,
Apoptosis↑, leading to dramatically increase of cancer cells apoptosis
eIF2α↓, EGCG suppressed the phosphorylation of PERK and eIF2α induced by ER stress.
UPR↓, UPR-related gene was dramatically induced by BFA and TUN, and this induction was suppressed by treatment of Hela cells with EGCG, further suggesting that EGCG suppressed the UPR induced by ER stress.
ER Stress↑, EGCG can dramatically inhibit the activity of PARP16, and then suppressed the ER stress-induced PERK phosphorylation, leading to dramatical increase of the ER stress-induced apoptosis of cancer cells.
eff↑, These results indicate that EGCG can be used in combination with ER stress-induced drugs to treat the cancer cell.
GRP78/BiP↓, EGCG had previously been found to bind to the ATP-binding domain of glucose regulate protein 78 (GRP78),

3206- EGCG,    Insights on the involvement of (-)-epigallocatechin gallate in ER stress-mediated apoptosis in age-related macular degeneration
- Review, AMD, NA
*Ca+2↓, EGCG restores [Ca2+]i homeostasis by decreasing ROS production through inhibition of prohibitin1 which regulate ER-mitochondrial tether site and inhibit apoptosis.
*ROS↓,
*Apoptosis↓,
*GRP78/BiP↓, EGCG downregulated GRP78, CHOP, PERK, ERO1α, IRE1α, cleaved PARP, cleaved caspase 3, caspase 12 and upregulated expression of calnexinin MRPE cells
*CHOP↓,
*PERK↓,
*IRE1↓,
*p‑PARP↓,
*Casp3↓,
*Casp12↓,
*ER Stress↓,
*UPR↓, EGCG mitigates ER stress; maintain calcium homeostasis and inhibition of UPR to control the progression of AMD.

3716- FA,    Ferulic Acid as a Protective Antioxidant of Human Intestinal Epithelial Cells
- in-vitro, IBD, NA - in-vivo, NA, NA
*antiOx↑, Ferulic acid (FA) is a polyphenol that is abundant in plants and has antioxidant and anti-inflammatory properties
*Inflam↓,
*ER Stress↓, FA suppressed ER stress, nitric oxide (NO) generation, and inflammation in polarized Caco-2 and T84 cells,
*other↑, FA has a protective effect on intestinal tight junctions
*angioG↑, A has been reported to induce hypoxia and enhance the angiogenesis of human umbilical vein endothelial cells (HUVEC) by increasing the expressions of HIF-1α and vascular endothelial growth factor (VEGF)
*Hif1a↑,
*VEGF↑,
*NO↓, suggesting FA attenuates NO production induced by inflammation.
*SIRT1↑, Another study suggested that FA activated SIRT1 to protect the heart from the adverse effects of ER stress via reduction of PERK/eIF2α/ATF4/CHOP pathway
*PERK↓,
*ATF4↓,
*CHOP↓,
*GutMicro↑, FA can mitigate intestinal inflammation, promote the growth of Bacteroides, and induce the production of SCFAs by modulating the gut microbiota in mouse and diabetic syndrome rat model

4297- QC,    Quercetin attenuates tau hyperphosphorylation and improves cognitive disorder via suppression of ER stress in a manner dependent on AMPK pathway
- in-vitro, AD, SH-SY5Y
*AMPK↑, administration of quercetin enhanced AMPK activity, inhibited IRE1α and PERK phosphorylation, NLRP3 expression and tau phosphorylation
*IRE1↓,
*p‑PERK↓,
*p‑tau↓,
*cognitive↑, and improved cognitive disorder in mice exposed to high fat diets
*antiOx↑, exert anti-oxidative, anti-ER stress, anti-inflammatory activities and regulating glucose homeostasis, which can prevent neurodegenerative disorders, diabetes, and obesity
*ER Stress↓,
*Inflam↓,
*neuroP↑,
*TXNIP↓, Quercetin and quercetin-3-O-glucuronide suppressed ER stress with decreased phosphorylation of IRE1α and PERK, thereby inhibited TXNIP and NLRP3 inflammasome activation,
*NLRP3↓, effectively protected neuronal cells from inflammatory insult by blocking ER stress/NLRP3 inflammasome activation.

3365- QC,    Quercetin attenuates sepsis-induced acute lung injury via suppressing oxidative stress-mediated ER stress through activation of SIRT1/AMPK pathways
- in-vivo, Sepsis, NA
*ER Stress↓, quercetin could inhibit the level of ER stress as evidenced by decreased mRNA expression of PDI, CHOP, GRP78, ATF6, PERK, IRE1α
*PDI↓,
*CHOP↓,
*GRP78/BiP↓,
*ATF6↓,
*PERK↓,
*IRE1↓,
*MMP↑, and improve mitochondrial function, as presented by increased MMP, SOD level and reduced production of ROS, MDA.
*SOD↑,
*ROS↓,
*MDA↓,
*SIRT1↑, quercetin upregulated SIRT1/AMPK mRNA expression.
*AMPK↑,
*Sepsis↓, quercetin could protect against sepsis-induced ALI by suppressing oxidative stress-mediated ER stress and mitochondrial dysfunction via induction of the SIRT1/AMPK pathways.

3020- RosA,    Protective Effect of Rosmarinic Acid on Endotoxin-Induced Neuronal Damage Through Modulating GRP78/PERK/MANF Pathway
- in-vivo, Nor, NA - in-vitro, NA, SH-SY5Y
*cognitive↑, 20 and 40 mg/kg RA significantly improve endotoxin-induced cognitive dysfunction without dose differences
*PERK↓, 40 mg/kg RA treatment significantly decreased the hippocampal level of PERK protein
*GRP78/BiP↓, 120 μM RA pretreatment significantly inhibited LPS-conditioned culture-induced GRP78, PERK, and MANF upregulation in vitro.
*ER Stress↓, improving cognitive impairment and suppressing the endoplasmic reticulum stress mediated by the GRP78/IRE1α/JNK pathway.

3024- RosA,    rmMANF prevents sepsis-associated lung injury via inhibiting endoplasmic reticulum stress-induced ferroptosis in mice
- in-vivo, Sepsis, NA
*Ferroptosis↓, rmMANF pretreatment inhibits ferroptosis by suppressing GRP78/PERK/ATF4 axis.
*GRP78/BiP↓,
*PERK↓,
*ATF4↓,
*Sepsis↓,
*GSH↑, LPS administration mice exhibited elevated MDA immunoactivity, total iron level, and declined GSH level, and SOD, CAT activities, while these effects of LPS were effectively against by rmMANF pretreatment
*SOD↑,
*Catalase↑,

3025- RosA,    Rosmarinic acid alleviates intestinal inflammatory damage and inhibits endoplasmic reticulum stress and smooth muscle contraction abnormalities in intestinal tissues by regulating gut microbiota
- in-vivo, IBD, NA
*GutMicro↑, RA upregulated the abundance of Lactobacillus johnsonii and Candidatus Arthromitus sp SFB-mouse-NL and downregulated the abundance of Bifidobacterium pseudolongum, Escherichia coli, and Romboutsia ilealis.
*ROCK1↓, RA downregulated the expressions of ROCK, RhoA, CaM, MLC, MLCK, ZEB1, ZO-1, ZO-2, occludin, E-cadherin, IL-1β, IL-6, TNF-α, GRP78, PERK, IRE1, ATF6, CHOP, Caspase12, Caspase9, Caspase3, Bax, Cytc, RIPK1, RIPK3, MLKL
*Rho↓,
*CaMKII ↓,
*Zeb1↓,
*ZO-1↓,
*E-cadherin↓,
*IL1β↓,
*IL6↓,
*TNF-α↓,
*GRP78/BiP↓,
*PERK↓,
*IRE1↓,
*ATF6↓,
*CHOP↓,
*Casp12↓,
*Casp9↓,
*BAX↓,
*Casp3↓,
*Cyt‑c↓,
*RIP1↓,
*MLKL↓,
*IL10↑, upregulated the expression of IL-10 and Bcl-2.
*Bcl-2↑,
*ER Stress↓, RA inhibited the inflammation, which is caused by tight junction damage, by repairing intestinal flora dysbiosis, relieved endoplasmic reticulum stress, inhibited cell death

3033- RosA,    Rosemary (Rosmarinus officinalis) Extract Modulates CHOP/GADD153 to Promote Androgen Receptor Degradation and Decreases Xenograft Tumor Growth
- in-vitro, Pca, 22Rv1 - in-vitro, Pca, LNCaP - vitro+vivo, NA, NA
ER Stress↑, A significant modulation of endoplasmic reticulum stress proteins was observed in cancer cells while normal prostate epithelial cells did not undergo endoplasmic reticulum stress.
selectivity↑,
AR↓, rosemary extract to decrease androgen receptor expression that appears to be regulated by the expression of CHOP/GADD153
TumCG↓, Rosemary extract modulates cell growth and induces cell cycle arrest in prostate cancer cell lines.
TumCCA↑,
CHOP↑, We observed an increase in overall protein expression of CHOP
PERK↓, decrease in PERK expression in prostate epithelial cells was observed following treatment with rosemary extract.
GRP78/BiP↑, rosemary extract induced BiP expression is essential for apoptosis.
PSA↓, AR and PSA is decreased and that of CHOP is increased in rosemary extract treated tissue lysates compared to lysates from control group animals.


Showing Research Papers: 1 to 12 of 12

* indicates research on normal cells as opposed to diseased cells
Total Research Paper Matches: 12

Pathway results for Effect on Cancer / Diseased Cells:


Cell Death ⓘ

Apoptosis↑, 1,   JNK↓, 1,  

Protein Folding & ER Stress ⓘ

CHOP↓, 1,   CHOP↑, 1,   eIF2α↓, 1,   p‑eIF2α↓, 1,   ER Stress↑, 2,   GRP78/BiP↓, 1,   GRP78/BiP↑, 1,   PERK↓, 2,   p‑PERK↓, 2,   UPR↓, 1,  

Cell Cycle & Senescence ⓘ

TumCCA↑, 1,  

Proliferation, Differentiation & Cell State ⓘ

TumCG↓, 1,  

Immune & Inflammatory Signaling ⓘ

PSA↓, 1,  

Hormonal & Nuclear Receptors ⓘ

AR↓, 1,  

Drug Metabolism & Resistance ⓘ

eff↑, 1,   selectivity↑, 1,  

Clinical Biomarkers ⓘ

AR↓, 1,   PSA↓, 1,  

Functional Outcomes ⓘ

PARP16↓, 1,  
Total Targets: 21

Pathway results for Effect on Normal Cells:


Redox & Oxidative Stress ⓘ

antiOx↑, 2,   Catalase↑, 1,   Ferroptosis↓, 1,   GSH↑, 1,   MDA↓, 1,   ROS↓, 4,   SOD↑, 2,  

Mitochondria & Bioenergetics ⓘ

MMP↑, 1,  

Core Metabolism/Glycolysis ⓘ

AMPK↑, 2,   SIRT1↑, 2,  

Cell Death ⓘ

Apoptosis↓, 1,   BAX↓, 1,   Bcl-2↑, 1,   Casp12↓, 2,   Casp3↓, 2,   Casp9↓, 1,   Cyt‑c↓, 1,   Ferroptosis↓, 1,   MLKL↓, 1,   RIP1↓, 1,  

Kinase & Signal Transduction ⓘ

CaMKII ↓, 1,  

Transcription & Epigenetics ⓘ

other↑, 1,  

Protein Folding & ER Stress ⓘ

ATF6↓, 2,   CHOP↓, 4,   eIF2α↓, 1,   p‑eIF2α↓, 1,   ER Stress↓, 9,   GRP78/BiP↓, 5,   IRE1↓, 4,   PERK↓, 6,   p‑PERK↓, 2,   UPR↓, 2,  

DNA Damage & Repair ⓘ

p‑PARP↓, 1,  

Proliferation, Differentiation & Cell State ⓘ

STAT3↑, 1,  

Migration ⓘ

Ca+2↓, 1,   E-cadherin↓, 1,   Rho↓, 1,   ROCK1↓, 1,   TXNIP↓, 1,   Zeb1↓, 1,   ZO-1↓, 1,  

Angiogenesis & Vasculature ⓘ

angioG↑, 1,   ATF4↓, 3,   Hif1a↑, 1,   NO↓, 1,   PDI↓, 1,   VEGF↑, 1,  

Immune & Inflammatory Signaling ⓘ

IL10↑, 1,   IL1β↓, 1,   IL6↓, 1,   Inflam↓, 2,   JAK2↑, 1,   TNF-α↓, 1,  

Synaptic & Neurotransmission ⓘ

p‑tau↓, 1,  

Protein Aggregation ⓘ

NLRP3↓, 1,  

Clinical Biomarkers ⓘ

GutMicro↑, 2,   IL6↓, 1,  

Functional Outcomes ⓘ

cardioP↑, 1,   cognitive↑, 3,   neuroP↑, 2,  

Infection & Microbiome ⓘ

Sepsis↓, 2,  
Total Targets: 61

Scientific Paper Hit Count for: PERK, protein kinase-like ER kinase
4 Rosmarinic acid
3 Berberine
2 EGCG (Epigallocatechin Gallate)
2 Quercetin
1 Ferulic acid
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#:%  Target#:617  State#:%  Dir#:1
  wNotes=on  sortOrder:rid,rpid

 

Home Page