Alpha-Lipoic-Acid / STAT Cancer Research Results

ALA, Alpha-Lipoic-Acid: Click to Expand ⟱

Features: antioxidant, energy production in cell mitochondria

Alpha-Lipoic-Acid: also known as lipoic acid or thioctic acid (reduced form is dihydrolipoic acid).
"Universal antioxidant" because it is both water- and fat-soluble and can neutralize free radicals.
-Treatment sometimes as ALA/N (alpha-lipoic acid/low-dose naltresone)
-Also done in IV
-Decreases ROS production, but also has pro-oxidant role.
Normal adult can take 300 milligrams twice a day with food, but they should always take a B-complex vitamin with it. Because B complex vitamins, especially thiamine, and biotin, and riboflavin, are depleted during this metabolic process.
α-Lipoic acid acts as a chelating agent for metal ions, a quenching agent for reactive oxygen species, and a reducing agent for the oxidized form of glutathione and vitamins C and E.
-It seems a paradox that LA functions as both antioxidant and prooxidant. LA functions the pro-oxidant only in special cancer cells, such as A549 and PC9 cells which should show high-level NRF2 expression and high glycolytic level. Through inhibiting PDK1 to further prohibit NRF2; LA functions as anticancer prooxidant.

α-lipoic acid possesses excellent silver chelating properties.

ALA → ROS ↑ (cancer cells; high dose / stressed mitochondria)
ALA → ROS ↓ (normal cells; low–moderate dose)
same pattern seen with: Vitamin C, Menadione, Quercetin, EGCG, Resveratrol

- ALA acts as pro-Oxidant only in cancer cells:#278 - Pro-Oxidant Dose margin >100uM:#304

- Bioavailability: 80-90%, but conversion to EPA/DHA is 5-10% (and takes longer time).
- AI (Adequate Intake): 1.1-1.6g/day.
- human studies have shown that ALA levels decline significantly with age
- 1g of ALA might achieve 500uM in the blood.
- ALA is poorly soluble, lecithin has been used as an amphiphilic matrix to enhance its bioavailability.
- Pilot studies or observational interventions have used flaxseed supplementation (rich in ALA) in doses providing roughly 3–4 g of ALA daily.
- Flaxseed oil is even more concentrated in ALA – typical 50–60% ALA by weight.
- single walnut may contain 300mg of ALA
- chia oil contains 55-65% ALA.
- α-LA can also be obtained from the diet through the consumption of dark green leafy vegetables and meats
- ALA is more stable in chia seeds, (2grams of ALA per tablespoon)
- ALA degrades when exposed to heat, light, and air. (prone to oxidation)

-Note half-life 1-2 hrs.
BioAv 30-40% from walnuts, 60-80% from supplements. Co-ingestion with fat improves absorption. Both fat and water soluble
Pathways:
- induce ROS production
- ROS↑ related: MMP↓(ΔΨm), ER Stress↑, UPR↑, GRP78↑, Cyt‑c↑, Caspases↑, DNA damage↑,
- Lowers AntiOxidant defense in Cancer Cells: NRF2↓, SOD↓, GSH↓ Catalase↓ HO1↓ GPx↓
- Raises AntiOxidant defense in Normal Cells: ROS↓, NRF2↑, SOD↑, GSH↑, Catalase↑,
- lowers Inflammation : NF-kB↓, COX2↓, Pro-Inflammatory Cytokines : IL-1β↓, TNF-α↓, IL-6↓, IL-8↓
- inhibit Growth/Metastases : TumMeta↓, TumCG↓, EMT↓, MMPs↓, MMP2↓, MMP9↓, IGF-1↓, VEGF↓, FAK↓, NF-κB↓, TGF-β↓, α-SMA↓, ERK↓
- cause Cell cycle arrest : TumCCA↑, cyclin D1↓,
- inhibits Migration/Invasion : TumCMig↓, TumCI↓, TNF-α↓, FAK↓, ERK↓, EMT↓,
- inhibits glycolysis and ATP depletion : HIF-1α↓, PKM2↓, GLUT1↓, LDHA↓, HK2↓, PFKs↓, PDKs↓, ECAR↓, OXPHOS↓, GRP78↑, Glucose↓, GlucoseCon↓
- inhibits angiogenesis↓ : VEGF↓, HIF-1α↓, EGFR↓, Integrins↓,
- small indication of inhibiting Cancer Stem Cells : CSC↓, CD24↓, β-catenin↓,
- Others: PI3K↓, AKT↓, JAK↓, STAT">STAT↓, β-catenin↓, AMPK, ERK↓, JNK,
- Synergies: chemo-sensitization, chemoProtective, RadioSensitizer, RadioProtective, Others(review target notes), Neuroprotective, Cognitive, Renoprotection, Hepatoprotective, CardioProtective,

- Selectivity: Cancer Cells vs Normal Cells

Cancer-Relevant Pathways

Rank	Pathway / Axis	Cancer Cells	Normal Cells	Label	Interpretation	Notes
1	Reactive oxygen species (ROS)	↑ ROS (dose- & stress-dependent)	↓ ROS	Conditional Driver	Biphasic redox behavior	ALA/DHLA redox cycling can push already stressed cancer mitochondria past tolerance while buffering ROS in normal cells
2	Glutathione (GSH) system	↓ functional buffering	↑ GSH regeneration	Secondary	Redox amplification vs protection	In cancer cells, GSH consumption accompanies ROS escalation; in normal cells DHLA supports GSH recycling
3	Mitochondrial function (ΔΨm)	↓ ΔΨm (stress-induced)	↔ stabilized	Secondary	Mitochondrial selectivity	Cancer cells with unstable ETC show depolarization; normal cells tolerate or benefit metabolically
4	NF-κB signaling	↓ survival signaling	↓ inflammatory tone	Secondary	Redox-sensitive transcription	NF-κB suppression reduces cancer cell survival programs but is anti-inflammatory in normal tissue
5	Cell proliferation	↓ proliferation	↔ spared	Phenotypic	Cytostatic selectivity	ALA slows cancer cell cycling without universal apoptosis
6	Apoptosis	↑ apoptosis (conditional)	↓ apoptosis	Phenotypic	Threshold-dependent death	Occurs in cancer cells when redox stress exceeds buffering capacity
7	NRF2 antioxidant response	↑ NRF2 (adaptive, often insufficient)	↑ NRF2 (protective)	Adaptive	Stress compensation	NRF2 reflects attempted redox recovery; not a kill mechanism

STAT, Signal transducer and activator of transcription: Click to Expand ⟱

Source: CGL-CS

Type:

STAT proteins, or Signal Transducer and Activator of Transcription proteins, are a family of transcription factors that play a crucial role in various cellular processes, including cell growth, differentiation, and apoptosis. They are activated by cytokines and growth factors and are involved in signaling pathways that can influence cancer development and progression.
STAT proteins can promote cell division and survival, leading to increased tumor growth.
Many cancers exhibit overexpression of certain STAT proteins, particularly STAT3 and STAT5.

Scientific Papers found: Click to Expand⟱

3450-

ALA,

α-Lipoic Acid Inhibits Expression of IL-8 by Suppressing Activation of MAPK, Jak/Stat, and NF-κB in H. pylori-Infected Gastric Epithelial AGS Cells

in-vitro,

NA,

AGS

*IL8↓, *MAPK↓, *JAK↓, *STAT↓, *NF-kB↓,

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:

Total Targets: 0

Pathway results for Effect on Normal Cells:

Cell Death ⓘ

MAPK↓, 1,

Proliferation, Differentiation & Cell State ⓘ

STAT↓, 1,

Immune & Inflammatory Signaling ⓘ

IL8↓, 1, JAK↓, 1, NF-kB↓, 1,
Total Targets: 5

Scientific Paper Hit Count for: STAT, Signal transducer and activator of transcription

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