Cisplatin / P53 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)
P53, P53-Guardian of the Genome: Click to Expand ⟱
Source: TCGA
Type: Proapototic
TP53 is the most commonly mutated gene in human cancer. TP53 is a gene that encodes for the p53 tumor suppressor protein ; TP73 (Chr.1p36.33) and TP63 (Chr.3q28) genes that encode transcription factors p73 and p63, respectively, are TP53 homologous structures.
p53 is a crucial tumor suppressor protein that plays a significant role in regulating the cell cycle, maintaining genomic stability, and preventing tumor formation. It is often referred to as the "guardian of the genome" due to its role in protecting cells from DNA damage and stress.
TP53 gene, which encodes the p53 protein, is one of the most frequently mutated genes in human cancers.
Overexpression of MDM2, an inhibitor of p53, can lead to decreased p53 activity even in the presence of wild-type p53.
In some cancers, particularly those with mutant p53, there may be an overexpression of the p53 protein.
Cancers with overexpression: Breast, lung, colorectal, overian, head and neck, Esophageal, bladder, pancreatic, and liver.
Scientific Papers found: Click to Expand⟱
581- Api,  Cisplatin,    The natural flavonoid apigenin sensitizes human CD44+ prostate cancer stem cells to cisplatin therapy
- in-vitro, Pca, CD44+
Bcl-2↓, survivin↓, Casp8↑, P53↑, Sharpin↓, APAF1↑, p‑Akt↓, NF-kB↓, P21↑, Cyc↓, CDK2↓, CDK4/6↓, Snail↓, ChemoSen↑,
578- Api,  Cisplatin,    Apigenin enhances the cisplatin cytotoxic effect through p53-modulated apoptosis
- in-vitro, Lung, A549 - in-vitro, BC, MCF-7 - in-vitro, CRC, HCT116 - in-vitro, Pca, HeLa - in-vitro, Lung, H1299
p‑P53↑,
5651- BNL,  Cisplatin,    Natural borneol sensitizes human glioma cells to cisplatin-induced apoptosis by triggering ROS-mediated oxidative damage and regulation of MAPKs and PI3K/AKT pathway
- in-vitro, GBM, U251 - in-vitro, GBM, U87MG
ChemoSen↑, tumCV↓, TumCCA↑, Apoptosis↑, ROS↑, DNAdam↑, ATR↑, ATM↑, P53↑, Histones↑, eff↓, Casp3↑, Casp7↑, Casp9↑,
4518- MAG,  Cisplatin,    Evaluating the Magnolol Anticancer Potential in MKN-45 Gastric Cancer Cells
- in-vitro, GC, MKN45
ChemoSen↑, tumCV↓, BAX↑, Bcl-2↓, P21↑, P53↑, MMP9↓,

Showing Research Papers: 1 to 4 of 4

* indicates research on normal cells as opposed to diseased cells
Total Research Paper Matches: 4

Pathway results for Effect on Cancer / Diseased Cells:


Redox & Oxidative Stress ⓘ

ROS↑, 1,  

Core Metabolism/Glycolysis ⓘ

Histones↑, 1,  

Cell Death ⓘ

p‑Akt↓, 1,   APAF1↑, 1,   Apoptosis↑, 1,   BAX↑, 1,   Bcl-2↓, 2,   Casp3↑, 1,   Casp7↑, 1,   Casp8↑, 1,   Casp9↑, 1,   survivin↓, 1,  

Transcription & Epigenetics ⓘ

tumCV↓, 2,  

DNA Damage & Repair ⓘ

ATM↑, 1,   ATR↑, 1,   DNAdam↑, 1,   P53↑, 3,   p‑P53↑, 1,  

Cell Cycle & Senescence ⓘ

CDK2↓, 1,   Cyc↓, 1,   P21↑, 2,   TumCCA↑, 1,  

Migration ⓘ

CDK4/6↓, 1,   MMP9↓, 1,   Sharpin↓, 1,   Snail↓, 1,  

Immune & Inflammatory Signaling ⓘ

NF-kB↓, 1,  

Drug Metabolism & Resistance ⓘ

ChemoSen↑, 3,   eff↓, 1,  
Total Targets: 29

Pathway results for Effect on Normal Cells:


Total Targets: 0

Scientific Paper Hit Count for: P53, P53-Guardian of the Genome
4 Cisplatin
2 Apigenin (mainly Parsley)
1 borneol
1 Magnolol
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#:236  State#:%  Dir#:%
  wNotes=0  sortOrder:rid,rpid

 

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