Silver-NanoParticles / TumCD Cancer Research Results

AgNPs, Silver-NanoParticles: Click to Expand ⟱
Features:
Silver NanoParticles (AgNPs)
Summary:
1.Smaller sizes are generally more bioactive due to increased surface area and enhanced tumor accumulation via the enhanced permeability and retention (EPR) effect.
2.Two relevant forms: particulate silver (AgNPs) and ionic silver (Ag⁺). There is debate regarding oral use, as Ag⁺ can precipitate as AgCl in gastric acid, reducing bioavailability; AgNPs may partially avoid this via particulate uptake and intracellular Ag⁺ release. Gastric pH may influence this equilibrium.
3. Dose example 80kg person: 1.12-2mg/day, which can be calculated based on ppm and volume taken (see below) target < 10ppm and 120mL per day (30ppm and 1L per day caused argyria 30mg/day ) (Case Report: 9‐15 ppm@120mL, i.e. 1.1mg/L to 1.8mg/L per day)
Likely 10ppm --> 10mg/L, hence if take 100mL, then 1mg/day? (for Cancer)
The current Rfd for oral silver exposure is 5 ug/kg/d with a critical dose estimated at 14 ug/kg/d for the average person.
Seems like the Cancer target range is 14ug/kg/day to 25ug/kg/day. 80Kg example: 1.12mg to 2mg “1.4µg/kg body weight. If I would have 70kg, I would want to use 100µg/day. However, for fighting active disease, I would tend to explore higher daily dose, as I think this may be too low.”
These values reflect experimental or anecdotal contexts and are not established safe or therapeutic doses.
4. Antioxidants such as NAC can counteract AgNP cytotoxicity by restoring glutathione pools and suppressing ROS-mediated mitochondrial damage.
5. In vitro studies commonly show ROS elevation in both cancer and normal cells; however, in vivo, superior antioxidant, NRF2, and repair capacity in normal tissues may confer selectivity.
6. Pathways/mechanisms of action/:
-” intracellular ROS was increased...reduction in levels of glutathione (GSH)”
- Normal-cell selectivity is partly mediated by NRF2-dependent antioxidant and detoxification responses.
- AgNPs impair mitochondrial electron transport, increasing electron leak and amplifying ROS upstream of ΔΨm collapse.
-AgNPs inhibit VEGF-driven endothelial signaling and permeability (anti-angiogenic effect)
-”upregulation of proapoptotic genes (p53, p21, Bax, and caspases) and downregulation of antiapoptotic genes (Bcl-2)”
-” upregulation of AMPK and downregulation of mTOR, MMP-9, BCL-2, and α-SMA”
-”p53 is a key player...proapoptotic genes p53 and Bax were significantly increased... noticeable reduction in Bcl-2 transcript levels”
-” p53 participates directly in the intrinsic apoptosis pathway by regulating the mitochondrial outer membrane permeabilization”
- “Proapoptotic markers (BAX/BCL-XL, cleaved poly(ADP-ribose) polymerase, p53, p21, and caspases 3, 8 and 9) increased.”
-”The antiapoptotic markers, AKT and NF-kB, decreased in AgNP-treated cells.”

Chronic accumulation and long-term systemic effects remain insufficiently characterized.

Silver NanoParticles and Magnetic Fields
Summary:
1. “exposure to PMF increased the ability of AgNPs uptake”
2. 6x improvement from AgNPs alone

could glucose capping of SilverNPs work as trojan horse?

Sodium selenite might protect against toxicity of AgNPs in normal cells.

-uncoated AgNPs can degrade the gut microbiome. PVP, citrate, green-synthesized, chitosan coating, may reduce the effect.
Similar oxidative considerations may apply to selenium compounds, though mechanisms differ.
co-ingestion with food (higher pH) favors reduction and lower Ag+ levels.
-action mechanisms of AgNPs: the release of silver ions (Ag+), generation of reactive oxygen species (ROS), destruction of membrane structure.

AgNP anticancer effects come from three overlapping mechanisms:
-Nanoparticle–cell interaction (uptake, membrane effects)
-Intracellular ROS generation
-Controlled Ag⁺ release inside cancer cells

Comparison adding Citrate Capping
| Property              | Uncapped AgNPs | Citrate-capped AgNPs |
| --------------------- | -------------- | -------------------- |
| Stability             | Poor           | Excellent            |
| Free Ag⁺              | High           | Low                  |
| Normal cell toxicity  | Higher         | Lower                |
| Cancer selectivity    | Lower          | **Higher**           |
| Mechanism specificity | Crude          | **Targeted**         |
| Storage behavior      | Degrades       | Stable               |

Rank Pathway / Target Axis Cancer Cells Normal Cells Primary Effect Notes / Cancer Relevance Ref
1 Oxidative stress / ROS generation ↑ ROS (sustained) ↑ transient ROS → ↓ net ROS after adaptation Upstream cytotoxic trigger AgNP exposure commonly elevates ROS in cancer cells, initiating downstream stress-death programs (ref)
2 Thiol buffering (GSH pool) ↓ GSH (depletion) ↔ or transient ↓ with recovery Loss of redox buffering Colon cancer model: AgNPs induce oxidative cell damage through inhibition/depletion of reduced glutathione with downstream mitochondrial apoptosis (ref)
3 Mitochondrial ETC / respiration ↓ ETC efficiency; ↑ electron leak ↔ mild inhibition with recovery Bioenergetic destabilization ETC impairment amplifies ROS, precedes ΔΨm loss, and contributes to ATP collapse in cancer cells
4 Mitochondrial integrity (ΔΨm / MMP) ↓ ΔΨm ↔ largely preserved Mitochondrial dysfunction Breast cancer model: AgNP exposure dissipates mitochondrial membrane potential during cytotoxic progression (ref)
5 Intrinsic apoptosis (caspase cascade) ↑ caspase-dependent apoptosis ↔ minimal activation Programmed cell death Colon cancer model: “silver-based nanoparticles” induce apoptosis mediated through p53 (apoptosis direction shown) (ref)
6 Genotoxic stress / DNA damage ↑ DNA damage ↑ damage at high dose with efficient repair Checkpoint/death signaling Study documents AgNP-mediated DNA damage; susceptibility increases with impaired DNA repair capacity (ref)
7 ER stress / UPR (CHOP-dependent) ↑ ER stress → apoptosis ↑ adaptive UPR (no CHOP) Proteotoxic stress signaling Breast cancer cells: AgNPs induce “irremediable” ER stress leading to UPR-dependent apoptosis (ref)
8 Autophagy program ↑ autophagy (protective) ↑ adaptive autophagy Stress adaptation AgNPs induce autophagy in cancer cells; inhibiting autophagy enhances AgNP anticancer killing (ref)
9 Autophagic flux / lysosomal function ↓ flux (lysosomal defect) ↔ preserved flux Autophagic failure AgNP-induced lysosomal dysfunction drives autophagic flux defects (LC3-II accumulation) (ref)
10 NRF2 antioxidant response ↔ insufficient activation ↑ NRF2 activation Adaptive redox defense NRF2 activation in normal cells restores GSH and antioxidant enzymes, limiting toxicity
11 Stress MAPK (p38) / checkpoint signaling ↑ p38 → arrest/apoptosis ↑ transient p38 → recovery Stress signaling Jurkat T-cell model shows p38 MAPK activation with DNA damage and apoptosis (ref)
12 Angiogenesis / invasion (VEGF, NF-κB-linked) ↓ angiogenesis / ↓ invasion ↔ minimal effect Anti-angiogenic / anti-invasive AgNPs inhibit VEGF-induced permeability and invasion in tumor models (ref)


TumCD, Tumor Cell Death: Click to Expand ⟱
Source:
Type:
Tumor Cell Death
Scientific Papers found: Click to Expand⟱
4661- AgNPs,    Silver nanoparticles induces apoptosis of cancer stem cells in head and neck cancer
- in-vitro, HNSCC, NA
TumCD↑, CSCs↝,
4406- AgNPs,    Silver nanoparticles achieve cytotoxicity against breast cancer by regulating long-chain noncoding RNA XLOC_006390-mediated pathway
- in-vitro, BC, MCF-7 - in-vitro, BC, T47D - in-vitro, BC, MDA-MB-231
TumCD↑, other↓, P53↑, TumCCA↑, Apoptosis↑, ChemoSen↑, tumCV↓, γH2AX↑, SOX4↓,
4402- AgNPs,    Enhancement of Triple-Negative Breast Cancer-Specific Induction of Cell Death by Silver Nanoparticles by Combined Treatment with Proteotoxic Stress Response Inhibitors
- in-vitro, BC, BT549 - in-vitro, BC, MDA-MB-231 - in-vitro, Nor, MCF10
TumCD↑, selectivity↑, *toxicity↝, Dose↝, OS↑,
4439- AgNPs,    Anticancer Potential of Green Synthesized Silver Nanoparticles Using Extract of Nepeta deflersiana against Human Cervical Cancer Cells (HeLA)
- in-vitro, Cerv, HeLa
ROS↑, lipid-P↑, MMP↓, GSH↓, TumCCA↑, Apoptosis↑, Necroptosis↑, TumCD↑, Dose↝,
4430- AgNPs,    Evaluation of the Genotoxic and Oxidative Damage Potential of Silver Nanoparticles in Human NCM460 and HCT116 Cells
- in-vitro, Colon, HCT116 - in-vitro, Nor, NCM460
*Bacteria↓, ROS↑, p‑p38↑, BAX↑, Bcl-2↓, BAX↑, P21↑, TumCD↑, toxicity↝,
4358- AgNPs,  HPT,  Rad,    Silver nanocrystals mediated combination therapy of radiation with magnetic hyperthermia on glioma cells
- in-vitro, GBM, U251
RadioS↑, eff↑, TumCD↑,
4379- AgNPs,    Exposure to silver nanoparticles induces size- and dose-dependent oxidative stress and cytotoxicity in human colon carcinoma cells
- in-vitro, CRC, LoVo
eff↑, TumCD↑, ROS↑, Bacteria↓,
4361- AgNPs,  GoldNP,    Biocompatible silver, gold and silver/gold alloy nanoparticles for enhanced cancer therapy: in vitro and in vivo perspectives
- in-vivo, Liver, HepG2
TumCD↑, TumVol↓, *toxicity↝, hepatoP↑,
4364- AgNPs,    Selective cytotoxicity of green synthesized silver nanoparticles against the MCF-7 tumor cell line and their enhanced antioxidant and antimicrobial properties
- in-vitro, BC, MCF-7
TumCD↑, selectivity↑, *antiOx↑, *Inflam↓, AntiTum↑, ROS↑,
4372- AgNPs,    Negligible particle-specific toxicity mechanism of silver nanoparticles: the role of Ag+ ion release in the cytosol
- in-vitro, Cerv, HeLa - in-vitro, Lung, A549
TumCD↑,
4373- AgNPs,    In vitro toxicity of silver nanoparticles at noncytotoxic doses to HepG2 human hepatoma cells
- in-vitro, Liver, HepG2
TumCD↑,
4374- AgNPs,    Enhancing antitumor activity of silver nanoparticles by modification with cell-penetrating peptides
- in-vitro, BC, MCF-7
eff↑, TumCD↑,
338- AgNPs,    Biogenic silver nanoparticles: In vitro and in vivo antitumor activity in bladder cancer
- vitro+vivo, Bladder, 5637
TumCD↑, Apoptosis↑, TumCMig↓, TumCP↓,
339- AgNPs,    Cancer cell specific cytotoxic potential of the silver nanoparticles synthesized using the endophytic fungus, Penicillium citrinum CGJ-C2
- in-vitro, BC, MCF-7 - in-vitro, Melanoma, A431 - in-vitro, HCC, HepG2
TumCD↑,
340- AgNPs,    Screening bioactivities of Caesalpinia pulcherrima L. swartz and cytotoxicity of extract synthesized silver nanoparticles on HCT116 cell line
- in-vitro, CRC, HCT116
TumCD↑,
341- AgNPs,    Bioprospecting a native silver-resistant Bacillus safensis strain for green synthesis and subsequent antibacterial and anticancer activities of silver nanoparticles
- in-vitro, Liver, HepG2
TumCD↑, ROS↑,
352- AgNPs,    Synthesis of silver nanoparticles (Ag NPs) for anticancer activities (MCF 7 breast and A549 lung cell lines) of the crude extract of Syzygium aromaticum
- in-vitro, BC, MCF-7
TumCD↑,
354- AgNPs,    Silver nanoparticles induce SH-SY5Y cell apoptosis via endoplasmic reticulum- and mitochondrial pathways that lengthen endoplasmic reticulum-mitochondria contact sites and alter inositol-3-phosphate receptor function
- in-vitro, neuroblastoma, SH-SY5Y
TumCD↑, ER Stress↑, GRP78/BiP↑, p‑PERK↑, CHOP↑, Ca+2↑, XBP-1↑, p‑IRE1↑,
364- AgNPs,    Differential Action of Silver Nanoparticles on ABCB1 (MDR1) and ABCC1 (MRP1) Activity in Mammalian Cell Lines
- in-vitro, Lung, A549 - in-vitro, Hepat, HepG2 - in-vitro, CRC, SW-620
TumCD↑,
365- AgNPs,    Silver nanoparticles affect glucose metabolism in hepatoma cells through production of reactive oxygen species
- in-vitro, Hepat, HepG2
ROS↑, GlucoseCon↓, TumCD↑, NRF2↓,
323- Sal,  AgNPs,    Combination of salinomycin and silver nanoparticles enhances apoptosis and autophagy in human ovarian cancer cells: an effective anticancer therapy
- in-vitro, BC, MDA-MB-231 - in-vitro, Ovarian, A2780S
TumCD↑, LDH↓, MDA↑, SOD↓, ROS↑, GSH↓, Catalase↓, MMP↓, P53↑, P21↑, BAX↑, Bcl-2↓, Casp3↑, Casp9↑, Apoptosis↑, TumAuto↑,

Showing Research Papers: 1 to 21 of 21

* indicates research on normal cells as opposed to diseased cells
Total Research Paper Matches: 21

Pathway results for Effect on Cancer / Diseased Cells:


Redox & Oxidative Stress ⓘ

Catalase↓, 1,   GSH↓, 2,   lipid-P↑, 1,   MDA↑, 1,   NRF2↓, 1,   ROS↑, 7,   SOD↓, 1,  

Mitochondria & Bioenergetics ⓘ

MMP↓, 2,  

Core Metabolism/Glycolysis ⓘ

GlucoseCon↓, 1,   LDH↓, 1,  

Cell Death ⓘ

Apoptosis↑, 4,   BAX↑, 3,   Bcl-2↓, 2,   Casp3↑, 1,   Casp9↑, 1,   Necroptosis↑, 1,   p‑p38↑, 1,   TumCD↑, 21,  

Transcription & Epigenetics ⓘ

other↓, 1,   tumCV↓, 1,  

Protein Folding & ER Stress ⓘ

CHOP↑, 1,   ER Stress↑, 1,   GRP78/BiP↑, 1,   p‑IRE1↑, 1,   p‑PERK↑, 1,   XBP-1↑, 1,  

Autophagy & Lysosomes ⓘ

TumAuto↑, 1,  

DNA Damage & Repair ⓘ

P53↑, 2,   γH2AX↑, 1,  

Cell Cycle & Senescence ⓘ

P21↑, 2,   TumCCA↑, 2,  

Proliferation, Differentiation & Cell State ⓘ

CSCs↝, 1,  

Migration ⓘ

Ca+2↑, 1,   SOX4↓, 1,   TumCMig↓, 1,   TumCP↓, 1,  

Drug Metabolism & Resistance ⓘ

ChemoSen↑, 1,   Dose↝, 2,   eff↑, 3,   RadioS↑, 1,   selectivity↑, 2,  

Clinical Biomarkers ⓘ

LDH↓, 1,  

Functional Outcomes ⓘ

AntiTum↑, 1,   hepatoP↑, 1,   OS↑, 1,   toxicity↝, 1,   TumVol↓, 1,  

Infection & Microbiome ⓘ

Bacteria↓, 1,  
Total Targets: 48

Pathway results for Effect on Normal Cells:


Redox & Oxidative Stress ⓘ

antiOx↑, 1,  

Immune & Inflammatory Signaling ⓘ

Inflam↓, 1,  

Functional Outcomes ⓘ

toxicity↝, 2,  

Infection & Microbiome ⓘ

Bacteria↓, 1,  
Total Targets: 4

Scientific Paper Hit Count for: TumCD, Tumor Cell Death
21 Silver-NanoParticles
1 Hyperthermia
1 Radiotherapy/Radiation
1 Gold NanoParticles
1 salinomycin
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#:153  Target#:619  State#:%  Dir#:2
  wNotes=0  sortOrder:rid,rpid

 

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