CYP2A3/CYP2A6 Cancer Research Results

CYP2A3/CYP2A6, CYP2A3/CYP2A6: Click to Expand ⟱
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CYP2A3 is a member of the cytochrome P450 superfamily and is the rat ortholog most closely related to human CYP2A6. It functions as a phase I xenobiotic-metabolizing enzyme, catalyzing the oxidative metabolism of small, often volatile or tobacco-related compounds.
CYP2A3 is widely used in rat toxicology and carcinogenesis studies as a surrogate to understand:
-Human CYP2A6-mediated cancer risk
-Tobacco-related lung carcinogenesis

Inhibition or downregulation of CYP2A3 in animal models often reduces carcinogen activation and tumor incidence, supporting its functional role in cancer initiation.
Scientific Papers found: Click to Expand⟱
4922- PEITC,    Phenethyl Isothiocyanate: A comprehensive review of anti-cancer mechanisms
- Review, Var, NA
Risk↓, strong inverse relationship between dietary intake of cruciferous vegetables and the incidence of cancer.
AntiCan↑, Phenethyl isothiocyanate (PEITC) is present as gluconasturtiin in many cruciferous vegetables with remarkable anti-cancer effects.
TumCP↓, PEITC targets multiple proteins to suppress various cancer-promoting mechanisms such as cell proliferation, progression and metastasis
TumMeta↓,
ChemoSen↑, combination of PEITC with conventional anti-cancer agents is also highly effective in improving overall efficacy
*BioAv↑, ITCs are released from glucosinolates by the action of the enzyme myrosinase. The enzyme myrosinase can be activated by cutting or chewing the vegetables, but heating can destroy its activity
*other↝, Although water cress and broccoli are known to be the richest source, PEITC can also be obtained from turnips and radish
*Dose↝, In a study conducted with human volunteers, approximately 2 to 6 mg of PEITC was found to be released by the consumption of one ounce of watercress
Dose↓, significant anti-cancer effects can be achieved at micromolar concentrations of PEITC.
*BioAv↑, PEITC is highly bioavailable after oral administration. A single dose of 10–100 μmol/kg PEITC in rats resulted in bioavailability ranging between 90–114%
*Dose↝, Furthermore, about 928.5±250nM peak plasma concentration of PEITC was achieved in human subjects, after the consumption of 100g watercress.
*Half-Life↝, time to reach peak plasma concentration was observed to be 2.6h±1.1h with a t1/2 4.9±1.1h
*toxicity↝, long term studies are required to establish the safety profile of PEITC, since regular intake of PEITC can cause its accumulation resulting in cumulative effects, which could be toxic.
GSH↓, The conjugation of PEITC with intracellular glutathione and the subsequent removal of the conjugate result in depletion of glutathione and alteration in redox homeostasis leading to oxidative stress
ROS↑, PEITC-mediated generation of reactive oxygen species (ROS) is known to be a general mechanism of action leading to cytotoxic effects, especially specific to cancer cells
CYP1A1↑, PEITC on one hand causes induction of CYP1A1 and CYP1A2; however, it inhibits activity of certain CytP450 enzymes, such as CYP2E1, CYP3A4 and CYP2A3
CYP1A2↑,
P450↓,
CYP2E1↑,
CYP3A4↓,
CYP2A3/CYP2A6↓,
*ROS↓, PEITC treatment caused a significant increase in the activities of ROS detoxifying enzymes such as glutathione peroxidase1, superoxide dismutase 1 and 2. This was also confirmed in human study where subjects were administered watercress, a major sour
*GPx1↑,
*SOD1↑,
*SOD2↑,
Akt↓, PEITC inhibits Akt, a component of Ras signaling to inhibit tumor growth in several cancer types
EGFR↓, PEITC is also known to inhibit EGFR and HER2, which are important growth factors and regulators of Akt in different cancer models
HER2/EBBR2↓,
P53↑, PEITC-mediated activation of another tumor suppressor, p53 was observed in oral squamous cell carcinoma, causing G0/G1 phase arrest in multiple myeloma,
Telomerase↓, PEITC has been shown to inhibit telomerase activity in prostate and cervical cancer cells
selectivity↑, generation of reactive oxygen species (ROS), which also has been shown to be the basis of selectivity of PEITC toward cancer cells leaving normal cells undamaged [
MMP↓, ROS generation by PEITC leads to mitochondrial deregulation and modulation of proteins like Bcl2, BID, BIM and BAX, causing the release of cytochrome c into cytosol leading to apoptosis
Cyt‑c↑,
Apoptosis↑,
DR4↑, induction of death receptors and Fas-mediated apoptosis
Fas↑,
XIAP↓, PEITC-mediated suppression of anti-apoptotic proteins like XIAP and survivin, which are up-regulated in cancer cells
survivin↓,
TumAuto↑, PEITC induces autophagic cell death in cancer cells
Hif1a↓, PEITC directly or indirectly suppresses HIF1α
angioG↓, is possible that PEITC can block angiogenesis by non-hypoxic mechanisms also.
MMPs↓, Various studies with PEITC have shown suppression of invasion through inhibition of matrix metalloproteinases along with anti-metastatic effects caused by suppression of ERK kinase activity and transcriptional activity of NFkB
ERK↓,
NF-kB↓,
EMT↓, PEITC was also known to inhibit processes, such as epithelial to mesenchymal transition (EMT), cell invasion and migration, which are essential pre-requisites for metastasis
TumCI↓,
TumCMig↓,
Glycolysis↓, reduced rates of glycolysis in PEITC-treated cells and depletion of ATP lead to death in prostate cancer cells
ATP↓,
selectivity↑, PEITC (5μM) treatment suppressed glycolysis in the cancer cells, but no changes were observed in normal cells.
*antiOx↑, the antioxidant effect is achieved at very low ITC levels in normal cells as shown in various animal models
Dose↝, At higher concentrations, ITCs may generate ROS by depleting antioxidant levels. PEITC is known to cause ROS generation, which is the major mechanism of toxicity in cancer cells
other↝, There is a continuous leakage of electrons from the electron transport chain (ETC), which is major source of ROS production. PEITC causes generation of endogenous ROS by disrupting mitochondrial respiratory chain
OCR↓, PEITC also inhibits mitochondrial complex III activity and reduces the oxygen consumption rate in prostate cancer cells
GSH↓, PEITC binds to GSH and causes its depletion in cancer cells leading to ROS-induced cell damage
ITGB1↓, PEITC was found to inhibit major integrins, such as ITGB1, ITGA2 and ITGA6 in prostate cancer cells
ITGB6↓,
ChemoSen↑, Using pre-clinical studies, improved outcomes were observed when the conventional agents, such as docetaxel, metformin, vinblastine, doxorubicin and HDAC inhibitors were combined with PEITC


Showing Research Papers: 1 to 1 of 1

* 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,   CYP2E1↑, 1,   GSH↓, 2,   ROS↑, 1,  

Mitochondria & Bioenergetics ⓘ

ATP↓, 1,   MMP↓, 1,   OCR↓, 1,   XIAP↓, 1,  

Core Metabolism/Glycolysis ⓘ

CYP3A4↓, 1,   Glycolysis↓, 1,  

Cell Death ⓘ

Akt↓, 1,   Apoptosis↑, 1,   Cyt‑c↑, 1,   DR4↑, 1,   Fas↑, 1,   survivin↓, 1,   Telomerase↓, 1,  

Kinase & Signal Transduction ⓘ

HER2/EBBR2↓, 1,  

Transcription & Epigenetics ⓘ

other↝, 1,  

Autophagy & Lysosomes ⓘ

TumAuto↑, 1,  

DNA Damage & Repair ⓘ

P53↑, 1,  

Proliferation, Differentiation & Cell State ⓘ

EMT↓, 1,   ERK↓, 1,  

Migration ⓘ

ITGB1↓, 1,   ITGB6↓, 1,   MMPs↓, 1,   TumCI↓, 1,   TumCMig↓, 1,   TumCP↓, 1,   TumMeta↓, 1,  

Angiogenesis & Vasculature ⓘ

angioG↓, 1,   EGFR↓, 1,   Hif1a↓, 1,  

Immune & Inflammatory Signaling ⓘ

NF-kB↓, 1,  

Drug Metabolism & Resistance ⓘ

ChemoSen↑, 2,   CYP1A2↑, 1,   CYP2A3/CYP2A6↓, 1,   Dose↓, 1,   Dose↝, 1,   P450↓, 1,   selectivity↑, 2,  

Clinical Biomarkers ⓘ

EGFR↓, 1,   HER2/EBBR2↓, 1,  

Functional Outcomes ⓘ

AntiCan↑, 1,   Risk↓, 1,  
Total Targets: 45

Pathway results for Effect on Normal Cells:


Redox & Oxidative Stress ⓘ

antiOx↑, 1,   GPx1↑, 1,   ROS↓, 1,   SOD1↑, 1,   SOD2↑, 1,  

Transcription & Epigenetics ⓘ

other↝, 1,  

Drug Metabolism & Resistance ⓘ

BioAv↑, 2,   Dose↝, 2,   Half-Life↝, 1,  

Functional Outcomes ⓘ

toxicity↝, 1,  
Total Targets: 10

Scientific Paper Hit Count for: CYP2A3/CYP2A6, CYP2A3/CYP2A6
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

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