Cisplatin / M2 MC 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)

M2 MC, M2 macrophage conversion: Click to Expand ⟱

Source: HalifaxProj (inhibit)

Type:

M2 macrophages (M2 MC) are a subtype of macrophages that are generally associated with anti-inflammatory responses, tissue repair, and the promotion of tumor growth.
Strategies to reprogram M2 macrophages into a more pro-inflammatory M1 phenotype or to inhibit their function are being explored in cancer therapies.
M2 macrophages can play a dual role, promotion/suspression.
M2 macrophages are a subtype of macrophages that are generally associated with anti-inflammatory responses, tissue repair, and the promotion of tumor growth. The conversion of macrophages from the M1 (pro-inflammatory) to the M2 (anti-inflammatory) phenotype is a critical process in the tumor microenvironment and has significant implications for cancer progression.

M2 macrophages are generally considered protumorigenic. They secrete various cytokines and growth factors that promote tumor cell proliferation, angiogenesis, and tissue remodeling. Additionally, they can suppress the activity of cytotoxic T cells and natural killer (NK) cells, further aiding tumor immune evasion.

Scientific Papers found: Click to Expand⟱

4532-

MAG,

Cisplatin,

Magnolol Attenuates Cisplatin-Induced Muscle Wasting by M2c Macrophage Activation

in-vivo,

Var,

cisplatin-treated mice

cachexia↓, *IGF-1↑, chemoP↑, *M2 MC↑,

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:

Functional Outcomes ⓘ

cachexia↓, 1, chemoP↑, 1,
Total Targets: 2

Pathway results for Effect on Normal Cells:

Proliferation, Differentiation & Cell State ⓘ

IGF-1↑, 1,

Immune & Inflammatory Signaling ⓘ

M2 MC↑, 1,
Total Targets: 2

Scientific Paper Hit Count for: M2 MC, M2 macrophage conversion

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