Silver-NanoParticles / MMP 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)

MMP, ΔΨm, mitochondrial membrane potential: Click to Expand ⟱

Source:

Type:

Destruction of mitochondrial transmembrane potential, which is widely regarded as one of the earliest events in the process of cell apoptosis.
Mitochondria are organelles within eukaryotic cells that produce adenosine triphosphate (ATP), the main energy molecule used by the cell. For this reason, the mitochondrion is sometimes referred to as “the powerhouse of the cell”.
Mitochondria produce ATP through process of cellular respiration—specifically, aerobic respiration, which requires oxygen. The citric acid cycle, or Krebs cycle, takes place in the mitochondria.
The mitochondrial membrane potential is widely used in assessing mitochondrial function as it relates to the mitochondrial capacity of ATP generation by oxidative phosphorylation. The mitochondrial membrane potential is a reliable indicator of mitochondrial health.
In cancer cells, ΔΨm is often decreased, which can lead to changes in cellular metabolism, increased glycolysis, increased reactive oxygen species (ROS) production, and altered cell death pathways.

The membrane of malignant mitochondria is hyperpolarized (−220 mV) in comparison to their healthy counterparts (−160 mV), which facilitates the penetration of positively charged molecules to the cancer cells mitochondria.
The MMP is a critical indicator of mitochondrial function, directly reflecting the organelle's capacity to generate ATP through oxidative phosphorylation.

Scientific Papers found: Click to Expand⟱

4561-

AgNPs,

VitC,

Cellular Effects Nanosilver on Cancer and Non-cancer Cells: Potential Environmental and Human Health Impacts

in-vitro,

CRC,

HCT116

in-vitro,

Nor,

HEK293

NRF2↑, TumCCA↑, ROS↑, selectivity↑, *AntiViral↑, *toxicity↝, ETC↓, MMP↓, DNAdam↑, Apoptosis↑, lipid-P↑, other↝, UPR↑, *GRP78/BiP↑, *p‑PERK↑, *cl‑eIF2α↑, *CHOP↑, *JNK↑, Hif1a↓, AntiCan↑, *toxicity↓, eff↑,

4558-

AgNPs,

Role of Oxidative and Nitro-Oxidative Damage in Silver Nanoparticles Cytotoxic Effect against Human Pancreatic Ductal Adenocarcinoma Cells

in-vitro,

PC,

PANC1

3.19 ug/mL

ROS↑, selectivity↑, NO↑, SOD↓, GPx4↓, Catalase↓, TumCCA↑, MMP↓,

4556-

AgNPs,

Biofilm Impeding AgNPs Target Skin Carcinoma by Inducing Mitochondrial Membrane Depolarization Mediated through ROS Production

in-vitro,

Melanoma,

A431

MMP↓, ROS↑, *toxicity↓, Bacteria↓,

5143-

AgNPs,

Thermal Co-reduction engineered silver nanoparticles induce oxidative cell damage in human colon cancer cells through inhibition of reduced glutathione and induction of mitochondria-involved apoptosis

in-vitro,

CRC,

HCT116

28.11 μg/ml.

ROS↑, lipid-P↑, GSH↓, MMP↓, Casp3↑, Apoptosis↑, TumCCA↑,

4398-

AgNPs,

Induction of apoptosis in cancer cells at low silver nanoparticle concentrations using chitosan nanocarrier

in-vitro,

Colon,

HT29

0.33 μg mL(-1)

Apoptosis↑, MMP↓, Casp3↑, ROS↑, eff↑,

4415-

AgNPs,

SDT,

CUR,

Examining the Impact of Sonodynamic Therapy With Ultrasound Wave in the Presence of Curcumin-Coated Silver Nanoparticles on the Apoptosis of MCF7 Breast Cancer Cells

in-vitro,

BC,

MCF-7

29.3 ± 5.6 nm

 48.23 µg/ml

SDT was performed using an US frequency of 1 MHz, intensity of 2 W/cm2, and a distance of 2 cm.

tumCV↓, BAX↑, Casp3↑, Bcl-2↓, eff↑, ROS↑, sonoS↑, eff↑, MMP↓, Cyt‑c↑,

4414-

AgNPs,

Silver nanoparticles: Forging a new frontline in lung cancer therapy

Review,

Lung,

tumCV↑, ROS↑, MMP↓, TumCCA↑, Apoptosis↑, angioG↓,

4405-

AgNPs,

Silver nanoparticles defeat p53-positive and p53-negative osteosarcoma cells by triggering mitochondrial stress and apoptosis

in-vitro,

OS,

Apoptosis↑, other↑, ROS↑, eff↑, P53↝, Apoptosis↑, cl‑Casp3↑, survivin↓, MMP↓, Cyt‑c↑,

4399-

AgNPs,

Chit,

Silver nanoparticles impregnated alginate-chitosan-blended nanocarrier induces apoptosis in human glioblastoma cells

in-vitro,

GBM,

U87MG

 2.4 μg mL(-1) for Ag NPs

DNAdam↑, ROS↑, MMP↓, eff↑,

4439-

AgNPs,

Anticancer Potential of Green Synthesized Silver Nanoparticles Using Extract of Nepeta deflersiana against Human Cervical Cancer Cells (HeLA)

in-vitro,

Cerv,

HeLa

33 nm

ROS↑, lipid-P↑, MMP↓, GSH↓, TumCCA↑, Apoptosis↑, Necroptosis↑, TumCD↑, Dose↝,

4435-

AgNPs,

Gluc,

Glucose-Functionalized Silver Nanoparticles as a Potential New Therapy Agent Targeting Hormone-Resistant Prostate Cancer cells

in-vitro,

Pca,

PC3

average size of 61nm

911ug/mL

in-vitro,

Pca,

LNCaP

in-vitro,

Pca,

DU145

1579ug/mL

selectivity↑, ROS↑, mtDam↑, TumCCA↑, TumCP↓, Apoptosis↑, MMP↓,

2287-

AgNPs,

Silver nanoparticles induce endothelial cytotoxicity through ROS-mediated mitochondria-lysosome damage and autophagy perturbation: The protective role of N-acetylcysteine

in-vitro,

Nor,

HUVECs

*TumCP↓, *ROS↑, *eff↓, *MDA↑, *GSH↓, *MMP↓, *ATP↓, *LC3II↑, *p62↑, *Bcl-2↓, *BAX↑, *Casp3↑,

2288-

AgNPs,

Silver Nanoparticle-Mediated Cellular Responses in Various Cell Lines: An in Vitro Model

Review,

Var,

*ROS↑, Akt↓, ERK↓, DNAdam↑, Ca+2↑, ROS↑, MMP↓, Cyt‑c↑, TumCCA↑, DNAdam↑, Apoptosis↑, P53↑, p‑ERK↑, ER Stress↑, cl‑ATF6↑, GRP78/BiP↑, CHOP↑, UPR↑,

395-

AgNPs,

The apoptotic and genomic studies on A549 cell line induced by silver nitrate

in-vitro,

Lung,

A549

13.5uM@72hr

BAX↑, MMP↓,

397-

AgNPs,

GEM,

Silver nanoparticles enhance the apoptotic potential of gemcitabine in human ovarian cancer cells: combination therapy for effective cancer treatment

in-vitro,

Ovarian,

A2780S

50 nM GEM, 50 nM AgNPs

6nm

P53↑, P21↑, BAX↑, Bak↑, Cyt‑c↑, Casp3↑, Casp9↑, Bcl-2↓, ROS↑, MMP↓,

4388-

AgNPs,

Differential Cytotoxic Potential of Silver Nanoparticles in Human Ovarian Cancer Cells and Ovarian Cancer Stem Cells

in-vitro,

Cerv,

47.5 nm

tumCV↓, CSCs↓, selectivity↑, Apoptosis↑, ROS↑, LDH↓, Casp3↑, BAX↑, Bak↑, cMyc↑, MMP↓,

4380-

AgNPs,

Silver nanoparticles induce toxicity in A549 cells via ROS-dependent and ROS-independent pathways

in-vitro,

Lung,

A549

ROS↑, tumCV↓, MMP↓, TumCCA↑, PCNA↓, eff↓,

4371-

AgNPs,

Effects of Green Silver Nanoparticles on Apoptosis and Oxidative Stress in Normal and Cancerous Human Hepatic Cells in vitro

in-vitro,

Liver,

HUH7

20−50 nm

eco-friendly approach silver nanoparticles (AgNPs) using root extracts of Beta vulgaris L.

ROS↑, selectivity↑, DNAdam↑, Apoptosis↑, GSH↓, lipid-P↑, MMP↓, DNAdam↑,

348-

AgNPs,

Induction of p53 mediated mitochondrial apoptosis and cell cycle arrest in human breast cancer cells by plant mediated synthesis of silver nanoparticles from Bergenia ligulata (Whole plant)

in-vitro,

BC,

MCF-7

Apoptosis↑, ROS↑, MMP↓, P53↑, BAX↑, cl‑Casp3↑,

350-

AgNPs,

Cytotoxic and Apoptotic Effects of Green Synthesized Silver Nanoparticles via Reactive Oxygen Species-Mediated Mitochondrial Pathway in Human Breast Cancer Cells

in-vitro,

BC,

MCF-7

 40ug/mL

ROS↑, MMP↓, P53↑, BAX↑, Casp3↑, Casp9↑, Bcl-2↓,

388-

AgNPs,

Apoptotic efficacy of multifaceted biosynthesized silver nanoparticles on human adenocarcinoma cells

in-vitro,

BC,

MCF-7

 5 and 10 µg/mL

ROS↑, Casp3↑, BAX↑, P53↑, Casp↑, Cyt‑c↑, MMP↓, DNAdam↑, Bcl-2↓, BAX↑,

306-

AgNPs,

Cancer Therapy by Silver Nanoparticles: Fiction or Reality?

Analysis,

NA,

EPR↝, ROS↑, IL1↑, IL8↑, ER Stress↑, MMP9↑, MMP↓, Cyt‑c↑, Apoptosis↑, Hif1a↑, BBB↑, GutMicro↝, eff↑, eff↑, RadioS↑,

324-

AgNPs,

CPT,

Silver Nanoparticles Potentiates Cytotoxicity and Apoptotic Potential of Camptothecin in Human Cervical Cancer Cells

in-vitro,

Cerv,

HeLa

ROS↑, Casp3↑, Casp9↑, Casp6↑, GSH↓, SOD↓, GPx↓, MMP↓, P53↑, P21↑, Cyt‑c↑, BID↑, BAX↑, Bcl-2↓, Bcl-xL↓, Akt↓, Raf↓, ERK↓, MAP2K1/MEK1↓, JNK↑, p38↑,

373-

AgNPs,

Cytotoxic Potential and Molecular Pathway Analysis of Silver Nanoparticles in Human Colon Cancer Cells HCT116

in-vitro,

Colon,

HCT116

LDH↓, ROS↑, MDA↑, ATP↓, GSH↓, MMP↓,

369-

AgNPs,

Silver nanoparticles induce oxidative cell damage in human liver cells through inhibition of reduced glutathione and induction of mitochondria-involved apoptosis

in-vitro,

Liver,

ROS↑, GSH↓, DNAdam↑, lipid-P↝, Apoptosis↑, BAX↑, Bcl-2↓, MMP↓, Casp9↑, Casp3↑, JNK↑,

363-

AgNPs,

Silver nanoparticles induce oxidative cell damage in human liver cells through inhibition of reduced glutathione and induction of mitochondria-involved apoptosis

ROS↑, lipid-P↑, Apoptosis↑, BAX↑, Bcl-2↓, MMP↓, Cyt‑c↑, Casp3↑, Casp9↑, JNK↑,

2833-

FIS,

AgNPs,

Glucose-capped fisetin silver nanoparticles induced cytotoxicity and ferroptosis in breast cancer cells: A molecular perspective

in-vitro,

BC,

MDA-MB-231

11.275 ± 0.197 μg/mL

MMP↓, ROS↑, NRF2↑, NOX↑, selectivity↑,

1904-

GoldNP,

AgNPs,

Unveiling the Potential of Innovative Gold(I) and Silver(I) Selenourea Complexes as Anticancer Agents Targeting TrxR and Cellular Redox Homeostasis

in-vitro,

Lung,

H157

in-vitro,

BC,

MCF-7

in-vitro,

Colon,

HCT15

in-vitro,

Melanoma,

A375

TrxR↓, selectivity↑, eff↑, eff↝, ROS↑, MMP↓, Apoptosis↑, eff↑,

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

 Sal (3 µM), AgNPs (4 µg/mL)

 IC25 values of both Sal and AgNPs (3.0 µM and 4 µg/mL)

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 29 of 29

* indicates research on normal cells as opposed to diseased cells
Total Research Paper Matches: 29

Pathway results for Effect on Cancer / Diseased Cells:

Infection & Microbiome ⓘ

Bacteria↓, 1,
Total Targets: 79

Pathway results for Effect on Normal Cells:

Redox & Oxidative Stress ⓘ

GSH↓, 1, MDA↑, 1, ROS↑, 2,

Mitochondria & Bioenergetics ⓘ

ATP↓, 1, MMP↓, 1,

Cell Death ⓘ

BAX↑, 1, Bcl-2↓, 1, Casp3↑, 1, JNK↑, 1,

Protein Folding & ER Stress ⓘ

CHOP↑, 1, cl‑eIF2α↑, 1, GRP78/BiP↑, 1, p‑PERK↑, 1,

Autophagy & Lysosomes ⓘ

LC3II↑, 1, p62↑, 1,

Migration ⓘ

TumCP↓, 1,

Drug Metabolism & Resistance ⓘ

eff↓, 1,

Functional Outcomes ⓘ

toxicity↓, 2, toxicity↝, 1,

Infection & Microbiome ⓘ

AntiViral↑, 1,
Total Targets: 20

Scientific Paper Hit Count for: MMP, ΔΨm, mitochondrial membrane potential

29 Silver-NanoParticles
1 Vitamin C (Ascorbic Acid)
1 SonoDynamic Therapy UltraSound
1 Curcumin
1 chitosan
1 Glucose
1 Gemcitabine (Gemzar)
1 Camptothecin
1 Fisetin
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#:197  State#:%  Dir#:1
  wNotes=0  sortOrder:rid,rpid

Silver-NanoParticles / MMP Cancer Research Results

Pathway results for Effect on Cancer / Diseased Cells:

Redox & Oxidative Stress ⓘ

Mitochondria & Bioenergetics ⓘ

Core Metabolism/Glycolysis ⓘ

Cell Death ⓘ

Transcription & Epigenetics ⓘ

Protein Folding & ER Stress ⓘ

Autophagy & Lysosomes ⓘ

DNA Damage & Repair ⓘ

Cell Cycle & Senescence ⓘ

Proliferation, Differentiation & Cell State ⓘ

Migration ⓘ

Angiogenesis & Vasculature ⓘ

Barriers & Transport ⓘ

Immune & Inflammatory Signaling ⓘ

Cellular Microenvironment ⓘ

Drug Metabolism & Resistance ⓘ

Clinical Biomarkers ⓘ

Functional Outcomes ⓘ

Infection & Microbiome ⓘ

Pathway results for Effect on Normal Cells:

Redox & Oxidative Stress ⓘ

Mitochondria & Bioenergetics ⓘ

Cell Death ⓘ

Protein Folding & ER Stress ⓘ

Autophagy & Lysosomes ⓘ

Migration ⓘ

Drug Metabolism & Resistance ⓘ

Functional Outcomes ⓘ

Infection & Microbiome ⓘ

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