Cisplatin / NOX4 Cancer Research Results

Cisplatin, Cisplatin: Click to Expand ⟱
Features:
Cisplatin is a chemotherapy medication used to treat various types of cancer. It is a platinum-based drug that works by interfering with the DNA of cancer cells, preventing them from reproducing and ultimately leading to cell death.
Cisplatin (cis-diamminedichloroplatinum II; CDDP) is a platinum-based chemotherapeutic agent that forms covalent DNA crosslinks, primarily intrastrand adducts at adjacent guanine bases. These distort DNA structure, block replication and transcription, and activate DNA damage response pathways (ATM/ATR → p53), leading to cell-cycle arrest and apoptosis. Secondary mechanisms include ROS generation, stress MAPK activation, and modulation of NF-κB. Clinical resistance frequently involves enhanced DNA repair (ERCC1/NER), altered drug transport (CTR1, ATP7A/B), and increased antioxidant defenses. Major toxicities include nephrotoxicity, ototoxicity, and peripheral neuropathy.

Rank Pathway / Axis Cancer / Tumor Context Normal Tissue Context TSF Primary Effect Notes / Interpretation
1 DNA crosslink formation (intrastrand adducts) DNA adducts ↑; replication block ↑ Normal dividing cells also affected P, R, G Direct DNA cytotoxicity Cisplatin forms covalent intrastrand crosslinks (primarily at adjacent guanines), distorting DNA and blocking replication and transcription.
2 DNA damage response (ATM / ATR → p53) Checkpoint activation ↑; p53 signaling ↑ ↔ (toxicity in proliferating tissues) R, G Damage signaling cascade DNA distortion activates ATM/ATR pathways leading to p53-mediated cell-cycle arrest and apoptosis.
3 Intrinsic apoptosis (mitochondrial pathway) Bax ↑; Bcl-2 ↓; caspase-9/3 ↑ Nephrotoxicity & ototoxicity risk G Execution of cell death Persistent DNA damage triggers mitochondrial outer membrane permeabilization and caspase activation.
4 Cell-cycle arrest (G2/M emphasis) G2/M arrest ↑ ↔ G Cytostasis → apoptosis Cells accumulate in G2/M phase due to unrepaired DNA lesions.
5 ROS generation / oxidative stress ROS ↑ (secondary mechanism) Oxidative injury ↑ (kidney, cochlea) R, G Stress amplification Cisplatin increases mitochondrial ROS and oxidative stress, contributing to cytotoxicity and organ toxicity.
6 MAPK signaling (JNK / p38 activation) Stress MAPK activation ↑ ↔ R, G Stress-response signaling JNK and p38 activation contribute to apoptosis and stress signaling.
7 NF-κB activation (resistance axis) NF-κB ↑ may promote survival ↔ R, G Resistance modulation NF-κB activation can reduce sensitivity; inhibition enhances cytotoxicity in some models.
8 DNA repair pathways (NER / ERCC1) NER ↑ → resistance — G Resistance determinant Nucleotide excision repair (ERCC1) removes platinum adducts; high ERCC1 correlates with resistance.
9 Drug transport (CTR1 uptake; ATP7A/B efflux) CTR1 ↓ or ATP7A/B ↑ → resistance — G Exposure constraint Copper transporters influence intracellular cisplatin accumulation and resistance.
10 Clinical toxicity profile — Nephrotoxicity, ototoxicity, neurotoxicity — Translation constraint Major dose-limiting toxicities arise from DNA damage and oxidative stress in normal tissues.

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

  • P: 0–30 min (DNA aquation and initial adduct formation)
  • R: 30 min–3 hr (checkpoint activation / stress signaling)
  • G: >3 hr (apoptosis, phenotype outcomes, resistance development)
NOX4, NADPH oxidase 4: Click to Expand ⟱
Source:
Type:
NOX4 (NADPH oxidase 4) is a member of the NADPH oxidase (NOX) family of enzymes, which are responsible for generating reactive oxygen species (ROS) in various cell types. NOX4 is regulated by hypoxia, which can activate its expression and activity.
NOX4 (NADPH oxidase 4) is an enzyme that produces reactive oxygen species (ROS), particularly hydrogen peroxide (H₂O₂).
NOX4 is a cytoplasmic enzyme that catalyzes the transfer of electrons from NADPH to oxygen, resulting in the production of superoxide anion (O2-) and other ROS. NOX4 is expressed in a variety of tissues, including the kidney, lung, and vascular smooth muscle cells.
NOX4 is generally expressed in cancer.
In general, high NOX4 expression is associated with:
      Poor prognosis
      Increased tumor size
      Metastasis
      Resistance to chemotherapy and radiation therapy
      Poor response to treatment
Low NOX4 expression is associated with:
      Better prognosis
      Smaller tumor size
      Less metastasis
      Better response to chemotherapy and radiation therapy
      Better response to treatment

The combination of NOX4-driven ROS and available iron can lead to a synergistic increase in oxidative stress, setting the stage for ferroptotic cell death.
Scientific Papers found: Click to Expand⟱
7878- isoO,  Cisplatin,    Isoorientin Attenuates Cisplatin-Induced Nephrotoxicity Through the Inhibition of Oxidative Stress and Apoptosis via Activating the SIRT1/SIRT6/Nrf-2 Pathway
- in-vivo, Nor, NA
*antiOx↑, *RenoP↑, *chemoP↑, *SIRT1↑, *SIRT6↑, *NRF2↑, *HO-1↑, *NQO1↑, *NOX4↓, *ROS↓, *MPO↓, *MDA↓, *SOD↑, *GSH↑,

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:


Total Targets: 0

Pathway results for Effect on Normal Cells:


Redox & Oxidative Stress(tgid=1) ⓘ

antiOx↑, 1,   GSH↑, 1,   HO-1↑, 1,   MDA↓, 1,   MPO↓, 1,   NOX4↓, 1,   NQO1↑, 1,   NRF2↑, 1,   ROS↓, 1,   SOD↑, 1,  

Core Metabolism/Glycolysis(tgid=4) ⓘ

SIRT1↑, 1,  

DNA Damage & Repair(tgid=10) ⓘ

SIRT6↑, 1,  

Functional Outcomes(tgid=23) ⓘ

chemoP↑, 1,   RenoP↑, 1,  
Total Targets: 14

Scientific Paper Hit Count for: NOX4, NADPH oxidase 4
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#:197  Target#:644  State#:%  Dir#:%
  wNotes=0  sortOrder:rid,rpid

 

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