condition found tbRes List
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 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↓, 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


Hif1a, HIF1α/HIF1a: Click to Expand ⟱
Source:
Type:
Hypoxia-Inducible-Factor 1A (HIF1A gene, HIF1α, HIF-1α protein product)
-Dominantly expressed under hypoxia(low oxygen levels) in solid tumor cells
-HIF1A induces the expression of vascular endothelial growth factor (VEGF)
-High HIF-1α expression is associated with Poor prognosis
-Low HIF-1α expression is associated with Better prognosis

-Functionally, HIF-1α is reported to regulate glycolysis, whilst HIF-2α regulates genes associated with lipoprotein metabolism.
-Cancer cells produce HIF in response to hypoxia in order to generate more VEGF that promote angiogenesis

Key mediators of aerobic glycolysis regulated by HIF-1α.
-GLUT-1 → regulation of the flux of glucose into cells.
-HK2 → catalysis of the first step of glucose metabolism.
-PKM2 → regulation of rate-limiting step of glycolysis.
-Phosphorylation of PDH complex by PDK → blockage of OXPHOS and promotion of aerobic glycolysis.
-LDH (LDHA): Rapid ATP production, conversion of pyruvate to lactate;

HIF-1α Inhibitors:
-Curcumin: disruption of signaling pathways that stabilize HIF-1α (ie downregulate).
-Resveratrol: downregulate HIF-1α protein accumulation under hypoxic conditions.
-EGCG: modulation of upstream signaling pathways, leading to decreased HIF-1α activity.
-Emodin: reduce HIF-1α expression. (under hypoxia).
-Apigenin: inhibit HIF-1α accumulation.
Scientific Papers found: Click to Expand⟱
3442- ALA,    α‑lipoic acid modulates prostate cancer cell growth and bone cell differentiation
- in-vitro, Pca, 22Rv1 - in-vitro, Pca, C4-2B - in-vitro, Nor, 3T3
tumCV↓, Notably, α‑LA treatment significantly reduced the cell viability, migration, and invasion of PCa cell lines in a dose‑dependent manner.
TumCMig↓,
TumCI↓,
ROS↑, α‑LA supplementation dramatically increased reactive oxygen species (ROS) levels and HIF‑1α expression, which started the downstream molecular cascade and activated JNK/caspase‑3 signaling pathway
Hif1a↑, The expression of HIF-1α significantly increased following α-LA treatment and was comparable with the changes in ROS.
JNK↑,
Casp↑,
TumCCA↑, arrest of the cell cycle in the S‑phase, which has led to apoptosis of PCa cells
Apoptosis↑,
selectivity↑, Also, the treatment of α‑LA improved bone health by reducing PCa‑mediated bone cell modulation.

3441- ALA,    α-Lipoic Acid Maintains Brain Glucose Metabolism via BDNF/TrkB/HIF-1α Signaling Pathway in P301S Mice
- in-vivo, AD, NA
*tau↓, α-lipoic acid (LA), which is a naturally occurring cofactor in mitochondrial, has been shown to have properties that can inhibit the tau pathology and neuronal damage in our previous research
*GlucoseCon↑, chronic LA administration significantly increased glucose availability by elevating glucose transporter 3 (GLUT3), GLUT4, vascular endothelial growth factor (VEGF) protein and mRNA level, and heme oxygenase-1 (HO-1) protein level in P301S mouse brain
*GLUT3↑,
*GLUT4↑,
*VEGF↑,
*HO-1↑,
*Glycolysis↑, LA also promoted glycolysis by directly upregulating hexokinase (HK) activity, indirectly by increasing proliferator-activated receptor gamma coactivator 1-alpha (PGC-1α) and DNA repair enzymes (OGG1/2 and MTH1).
*HK1↑, Our results indicated that the activity of HK was significantly increased after 10 mg/kg LA treatment.
*PGC-1α↑,
*Hif1a↑, found the underlying mechanism of restored glucose metabolism might involve in the activation of brain-derived neurotrophic factor (BDNF)/tyrosine Kinase receptor B (TrkB)/hypoxia-inducible factor-1α (HIF-1α) signaling pathway by LA treatment.
*neuroP↑,

3433- ALA,    Alpha lipoic acid promotes development of hematopoietic progenitors derived from human embryonic stem cells by antagonizing ROS signals
*ROS↓, However, in more mature hPSC‐derived hematopoietic stem/progenitor cells, ALA reduced ROS levels and inhibited apoptosis.
*Apoptosis↓,
*Hif1a↑, up‐regulating HIF1A in response to a hypoxic environment.
*FOXO1↑, ALA also up‐regulated sensor genes of ROS signals, including HIF1A, FOXO1, FOXO3, ATM, PETEN, SIRT1, and SIRT3, during the process of hPSCs derived hemogenic endothelial cells generation
*FOXO3↑,
*ATM↑,
*SIRT1↑,
*SIRT3↑,
*CD34↑, Flow cytometry analysis indicated that ALA improved the production of CD34+ CD43+ CD45+ hematopoietic stem/progenitor cells significantly

3271- ALA,    Decrypting the potential role of α-lipoic acid in Alzheimer's disease
- Review, AD, NA
*antiOx↑, Alpha-lipoic acid (α-LA), a natural antioxidant
*memory↑, multiple preclinical studies indicating beneficial effects of α-LA in memory functioning, and pointing to its neuroprotective effects
*neuroP↑, α-LA could be considered neuroprotective
*Inflam↓, α-LA shows antioxidant, antiapoptotic, anti-inflammatory, glioprotective, metal chelating properties in both in vivo and in vitro studies.
*IronCh↑, α-LA leads to a marked downregulation in iron absorption and active iron reserve inside the neuron
*NRF2↑, α-LA induces the activity of the nuclear factor erythroid-2-related factor (Nrf2), a transcription factor.
*BBB↑, capable of penetrating the BBB
*GlucoseCon↑, Fig 2, α-LA mediated regulation of glucose uptake
*Ach↑, α-LA may show its action on the activity of the ChAT enzyme, which is an essential enzyme in acetylcholine metabolism
*ROS↓,
*p‑tau↓, decreased degree of tau phosphorylation following treatment with α-LA
*Aβ↓, α-LA possibly induce the solubilization of Aß plaques in the frontal cortex
*cognitive↑, cognitive reservation of α-LA served AD model was markedly upgraded in additional review
*Hif1a↑, α-LA treatment efficaciously induces the translocation and activity of hypoxia-inducible factor-1α (HIF-1α),
*Ca+2↓, research found that α-LA therapy remarkably declines Ca2+ concentration and calpain signaling
*GLUT3↑, inducing the downstream target genes expression, such as GLUT3, GLUT4, HO-1, and VEGF.
*GLUT4↑,
*HO-1↑,
*VEGF↑,
*PDKs↓, α-LA also ameliorates survival in mutant mice of Huntington's disease [150–151], possibly due to the inhibition of the activity of pyruvate dehydrogenase kinase
*PDH↑, α-LA administration enhances PDH expression in mitochondrial hepatocytes by inhibiting the pyruvate dehydrogenase kinase (PDK),
*VCAM-1↓, α-LA inhibits the expression of cell-cell adhesion molecule-1 and VCAM-1 in spinal cords and TNF-α induced neuronal endothelial cells injury
*GSH↑, α-LA may enhance glutathione production in old-aged models
*NRF2↑, activation of the Nrf2 signaling by α-LA
*hepatoP↑, α-LA also protected the liver against oxidative stress-mediated hepatotoxicity
*ChAT↑, α-LA in mice models may prevent neuronal injury possibly due to an increase in ChAT in the hippocampus of animal models

278- ALA,    The Multifaceted Role of Alpha-Lipoic Acid in Cancer Prevention, Occurrence, and Treatment
- Review, NA, NA
ROS↑, direct anticancer effect of the antioxidant ALA is manifested as an increase in intracellular ROS levels in cancer cells
NRF2↑, enhance the activity of the anti-inflammatory protein nuclear factor erythroid 2–related factor 2 (Nrf2), thereby reducing tissue damage
Inflam↓,
frataxin↑,
*BioAv↓, Oral ALA has a bioavailability of approximately 30% due to issues such as poor stability in the stomach, low solubility, and hepatic degradation.
ChemoSen↑, ALA can enhance the functionality of various other anticancer drugs, including 5-fluorouracil in colon cancer cells and cisplatin in MCF-7 breast cancer cells
Hif1a↓, it is inferred that lipoic acid may inhibit the expression of HIF-1α
eff↑, act as a synergistic agent with natural polyphenolic substances such as apigenin and genistein
FAK↓, ALA inhibits FAK activation by downregulating β1-integrin expression and reduces the levels of MMP-9 and MMP-2
ITGB1↓,
MMP2↓,
MMP9↓,
EMT↓, ALA inhibits the expression of EMT markers, including Snail, vimentin, and Zeb1
Snail↓,
Vim↓,
Zeb1↓,
P53↑, ALA also stimulates the mutant p53 protein and depletes MGMT
MGMT↓, depletes MGMT by inhibiting NF-κB signalling, thereby inducing apoptosis
Mcl-1↓,
Bcl-xL↓,
Bcl-2↓,
survivin↓,
Casp3↑,
Casp9↑,
BAX↑,
p‑Akt↓, ALA inhibits the activation of tumour stem cells by reducing Akt phosphorylation.
GSK‐3β↓, phosphorylation and inactivation of GSK3β
*antiOx↑, indirect antioxidant protection through metal chelation (ALA primarily binds Cu2+ and Zn2+, while DHLA can bind Cu2+, Zn2+, Pb2+, Hg2+, and Fe3+) and the regeneration of certain endogenous antioxidants, such as vitamin E, vitamin C, and glutathione
*ROS↓, ALA can directly quench various reactive species, including ROS, reactive nitrogen species, hydroxyl radicals (HO•), hypochlorous acid (HclO), and singlet oxygen (1O2);
selectivity↑, In normal cells, ALA acts as an antioxidant by clearing ROS. However, in cancer cells, it can exert pro-oxidative effects, inducing pathways that restrict cancer progression.
angioG↓, Combining these two hypotheses, it can be hypothesized that ALA may regulate copper and HIF-2α to limit tumor angiogenesis.
MMPs↓, ALA was shown to inhibit invasion by decreasing the mRNA levels of key matrix metalloproteinases (MMPs), specifically MMP2 and MMP9, which are crucial for the metastatic process
NF-kB↓, ALA has been shown to enhance the efficacy of the chemotherapeutic drug paclitaxel in breast and lung cancer cells by inhibiting the NF-κB signalling pathway and the functions of integrin β1/β3 [138,139]
ITGB3↓,
NADPH↓, ALA has been shown to inhibit NADPH oxidase, a key enzyme closely associated with NP, including NOX4

277- ALA,    α-lipoic acid modulates prostate cancer cell growth and bone cell differentiation
- in-vitro, Pca, 22Rv1 - in-vitro, Pca, C4-2B
ROS↑, α-LA supplementation dramatically increased reactive oxygen species (ROS) levels and HIF-1α expression, which started the downstream molecular cascade and activated JNK/caspase-3 signaling pathway.
Hif1a↑, HIF-1α, is a key regulator in response to cellular stressors, and excessive ROS levels can influence its expression. (HIF-1α) is essential for the physiological response to hypoxia(resulting from elevated intracellular ROS levels)
JNK↑,
Casp3↑,
P21↑,
BAX↑,
Bcl-xL↓,
cFos↓,


* indicates research on normal cells as opposed to diseased cells
Total Research Paper Matches: 6

Results for Effect on Cancer/Diseased Cells:
p‑Akt↓,1,   angioG↓,1,   Apoptosis↑,1,   BAX↑,2,   Bcl-2↓,1,   Bcl-xL↓,2,   Casp↑,1,   Casp3↑,2,   Casp9↑,1,   cFos↓,1,   ChemoSen↑,1,   eff↑,1,   EMT↓,1,   FAK↓,1,   frataxin↑,1,   GSK‐3β↓,1,   Hif1a↓,1,   Hif1a↑,2,   Inflam↓,1,   ITGB1↓,1,   ITGB3↓,1,   JNK↑,2,   Mcl-1↓,1,   MGMT↓,1,   MMP2↓,1,   MMP9↓,1,   MMPs↓,1,   NADPH↓,1,   NF-kB↓,1,   NRF2↑,1,   P21↑,1,   P53↑,1,   ROS↑,3,   selectivity↑,2,   Snail↓,1,   survivin↓,1,   TumCCA↑,1,   TumCI↓,1,   TumCMig↓,1,   tumCV↓,1,   Vim↓,1,   Zeb1↓,1,  
Total Targets: 42

Results for Effect on Normal Cells:
Ach↑,1,   antiOx↑,2,   Apoptosis↓,1,   ATM↑,1,   Aβ↓,1,   BBB↑,1,   BioAv↓,1,   Ca+2↓,1,   CD34↑,1,   ChAT↑,1,   cognitive↑,1,   FOXO1↑,1,   FOXO3↑,1,   GlucoseCon↑,2,   GLUT3↑,2,   GLUT4↑,2,   Glycolysis↑,1,   GSH↑,1,   hepatoP↑,1,   Hif1a↑,3,   HK1↑,1,   HO-1↑,2,   Inflam↓,1,   IronCh↑,1,   memory↑,1,   neuroP↑,2,   NRF2↑,2,   PDH↑,1,   PDKs↓,1,   PGC-1α↑,1,   ROS↓,3,   SIRT1↑,1,   SIRT3↑,1,   tau↓,1,   p‑tau↓,1,   VCAM-1↓,1,   VEGF↑,2,  
Total Targets: 37

Scientific Paper Hit Count for: Hif1a, HIF1α/HIF1a
6 Alpha-Lipoic-Acid
Filter Conditions: Pro/AntiFlg:%  IllCat:%  CanType:%  Cells:%  prod#:29  Target#:143  State#:%  Dir#:%
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