Cisplatin / Casp7 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)
Casp7, Caspase-7: Click to Expand ⟱
Source:
Type:
Members of the caspase family of proteases play essential roles in the initiation and execution of apoptosis. These caspases are divided into two groups: the initiator caspases (caspase-2, −8, −9 and −10), which are the first to be activated in response to a signal, and the executioner caspases (caspase-3, −6, and −7) that carry out the demolition phase of apoptosis. Downregulation of caspase-3 is an effective apoptosis-evading mechanism frequently observed in cancer cells in association with acquired chemoresistance to apoptosis-inducing anticancer drugs. Indeed, re-expression of caspase-3 often restores sensitivity to apoptosis.
Caspase-7:
Role: Executioner caspase similar to caspase-3.
Cancers: Expression levels can vary; often studied in breast and prostate cancers.
Prognosis: Its prognostic value is less clear and may depend on the cancer type.
Scientific Papers found: Click to Expand⟱
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↑,
5919- Cats,  Cisplatin,    Uncaria tomentosa Leaves Decoction Modulates Differently ROS Production in Cancer and Normal Cells, and Effects Cisplatin Cytotoxicity
- in-vitro, Liver, HepG2
ROS↑, GSH↓, Apoptosis↑, Casp3↑, Casp7↑, NF-kB↓, selectivity↑, ChemoSen↑, chemoP↑,
1064- LT,  Cisplatin,    Inhibition of cell survival, invasion, tumor growth and histone deacetylase activity by the dietary flavonoid luteolin in human epithelioid cancer cells
- vitro+vivo, Lung, LNM35 - in-vitro, CRC, HT-29 - in-vitro, Liver, HepG2 - in-vitro, BC, MCF-7 - in-vitro, BC, MDA-MB-231
Casp3↑, Casp7↑, HDAC↓,

Showing Research Papers: 1 to 3 of 3

* indicates research on normal cells as opposed to diseased cells
Total Research Paper Matches: 3

Pathway results for Effect on Cancer / Diseased Cells:


Redox & Oxidative Stress ⓘ

GSH↓, 1,   ROS↑, 2,  

Core Metabolism/Glycolysis ⓘ

Histones↑, 1,  

Cell Death ⓘ

Apoptosis↑, 2,   Casp3↑, 3,   Casp7↑, 3,   Casp9↑, 1,  

Transcription & Epigenetics ⓘ

tumCV↓, 1,  

DNA Damage & Repair ⓘ

ATM↑, 1,   ATR↑, 1,   DNAdam↑, 1,   P53↑, 1,  

Cell Cycle & Senescence ⓘ

TumCCA↑, 1,  

Proliferation, Differentiation & Cell State ⓘ

HDAC↓, 1,  

Immune & Inflammatory Signaling ⓘ

NF-kB↓, 1,  

Drug Metabolism & Resistance ⓘ

ChemoSen↑, 2,   eff↓, 1,   selectivity↑, 1,  

Functional Outcomes ⓘ

chemoP↑, 1,  
Total Targets: 19

Pathway results for Effect on Normal Cells:


Total Targets: 0

Scientific Paper Hit Count for: Casp7, Caspase-7
3 Cisplatin
1 borneol
1 Cat’s Claw
1 Luteolin
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#:43  State#:%  Dir#:2
  wNotes=0  sortOrder:rid,rpid

 

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