Cisplatin / HMGCS2 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)
HMGCS2, 3-Hydroxy-3-Methylglutaryl-CoA Synthase 2: Click to Expand ⟱
Source:
Type:

HMGCS2 - 3-Hydroxy-3-Methylglutaryl-CoA Synthase 2

Abbreviation: HMGCS2, mitochondrial HMG-CoA synthase

Type: Mitochondrial metabolic enzyme / ketogenesis enzyme

Function: Catalyzes the condensation of acetyl-CoA with acetoacetyl-CoA to form HMG-CoA and is the rate-limiting enzyme of mitochondrial ketogenesis. HMGCS2 regulates production of ketone bodies including β-hydroxybutyrate and acetoacetate and links fatty-acid oxidation, mitochondrial metabolism, cellular energy status, and metabolic signaling.

Cancer: ↕ Context-dependent. HMGCS2 functions as a tumor suppressor in several cancers, where reduced expression can promote proliferation, migration, invasion, and tumor progression and restoration of HMGCS2 can suppress malignant behavior. However, HMGCS2-dependent ketogenesis can support metabolic adaptation and survival in selected tumor contexts, making its role dependent on cancer type and metabolic state.
Scientific Papers found: Click to Expand⟱
7483- H2,  Cisplatin,    Molecular hydrogen attenuates cisplatin-induced nephrotoxicity by modulating β-hydroxybutyrate metabolism
- in-vivo, Nor, HK-2
RenoP↑, BHB↑, HMGCS2↑, chemoP↑, *IL2↓, *IL6↓, *MCP1/CCL2↓, *TNF-α↓, *KeyT↝, *Inflam↓, *ROS↓, *MMP↑, *ATP↑, *MFN2↑, *PGC-1α↑, *BUN↓, *creat↓,

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:


NA, unassigned(tgid=0) ⓘ

BHB↑, 1,   HMGCS2↑, 1,  

Functional Outcomes(tgid=23) ⓘ

chemoP↑, 1,   RenoP↑, 1,  
Total Targets: 4

Pathway results for Effect on Normal Cells:


Redox & Oxidative Stress(tgid=1) ⓘ

MFN2↑, 1,   ROS↓, 1,  

Mitochondria & Bioenergetics(tgid=3) ⓘ

ATP↑, 1,   MMP↑, 1,   PGC-1α↑, 1,  

Core Metabolism/Glycolysis(tgid=4) ⓘ

BUN↓, 1,   KeyT↝, 1,  

Immune & Inflammatory Signaling(tgid=16) ⓘ

IL2↓, 1,   IL6↓, 1,   Inflam↓, 1,   MCP1/CCL2↓, 1,   TNF-α↓, 1,  

Clinical Biomarkers(tgid=22) ⓘ

creat↓, 1,   IL6↓, 1,  
Total Targets: 14

Scientific Paper Hit Count for: HMGCS2, 3-Hydroxy-3-Methylglutaryl-CoA Synthase 2
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#:1646  State#:%  Dir#:2
  wNotes=0  sortOrder:rid,rpid

 

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