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">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 |
3437- | ALA,  |   | Revisiting the molecular mechanisms of Alpha Lipoic Acid (ALA) actions on metabolism |
- | Review, | Var, | NA |
3447- | ALA,  |   | Redox Active α-Lipoic Acid Differentially Improves Mitochondrial Dysfunction in a Cellular Model of Alzheimer and Its Control Cells |
- | in-vitro, | AD, | SH-SY5Y |
- | in-vivo, | Nor, | NA |
3445- | ALA,  | Rad,  |   | The radioprotective effects of alpha-lipoic acid on radiotherapy-induced toxicities: A systematic review |
- | Review, | Var, | NA |
3444- | ALA,  |   | Alpha-Lipoic Acid Nootropic Review: Benefits, Use, Dosage & Side Effects |
- | Review, | NA, | NA |
3443- | ALA,  |   | Molecular and Therapeutic Insights of Alpha-Lipoic Acid as a Potential Molecule for Disease Prevention |
- | Review, | Var, | NA | - | Review, | AD, | NA |
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 |
3441- | ALA,  |   | α-Lipoic Acid Maintains Brain Glucose Metabolism via BDNF/TrkB/HIF-1α Signaling Pathway in P301S Mice |
- | in-vivo, | AD, | NA |
3440- | ALA,  |   | Protective effects of alpha lipoic acid (ALA) are mediated by hormetic mechanisms |
- | Review, | AD, | NA |
3439- | ALA,  |   | The effect of alpha lipoic acid on the developmental competence of mouse isolated preantral follicles |
- | in-vitro, | NA, | NA |
3438- | ALA,  |   | The Potent Antioxidant Alpha Lipoic Acid |
- | Review, | NA, | NA | - | Review, | AD, | NA |
3448- | ALA,  |   | Alpha lipoic acid attenuates hypoxia-induced apoptosis, inflammation and mitochondrial oxidative stress via inhibition of TRPA1 channel in human glioblastoma cell line |
- | in-vitro, | BC, | MCF-7 |
3434- | ALA,  |   | Alpha lipoic acid modulates metabolic reprogramming in breast cancer stem cells enriched 3D spheroids by targeting phosphoinositide 3-kinase: In silico and in vitro insights |
- | in-vitro, | BC, | MCF-7 | - | in-vitro, | BC, | MDA-MB-231 |
3433- | ALA,  |   | Alpha lipoic acid promotes development of hematopoietic progenitors derived from human embryonic stem cells by antagonizing ROS signals |
3284- | ALA,  |   | Alpha-Lipoic Acid Mediates Clearance of Iron Accumulation by Regulating Iron Metabolism in a Parkinson's Disease Model Induced by 6-OHDA |
- | vitro+vivo, | Park, | NA |
3283- | ALA,  |   | Alpha-lipoic acid inhibits TNF-alpha-induced NF-kappaB activation and adhesion molecule expression in human aortic endothelial cells |
- | in-vitro, | Nor, | NA |
3272- | ALA,  |   | Alpha-lipoic acid as a dietary supplement: Molecular mechanisms and therapeutic potential |
- | Review, | AD, | NA |
3271- | ALA,  |   | Decrypting the potential role of α-lipoic acid in Alzheimer's disease |
- | Review, | AD, | NA |
3270- | ALA,  |   | Alpha-lipoic acid as a new treatment option for Alzheimer's disease--a 48 months follow-up analysis |
- | Trial, | AD, | NA |
3269- | ALA,  |   | Sulfur-containing therapeutics in the treatment of Alzheimer’s disease |
- | NA, | AD, | NA |
3542- | ALA,  |   | Chelation: Harnessing and Enhancing Heavy Metal Detoxification—A Review |
- | Review, | Var, | NA |
3552- | ALA,  |   | The dietary fatty acids α-linolenic acid (ALA) and linoleic acid (LA) selectively inhibit microglial nitric oxide production |
- | in-vitro, | AD, | BV2 |
3551- | ALA,  |   | Alpha lipoic acid treatment in late middle age improves cognitive function: Proteomic analysis of the protective mechanisms in the hippocampus |
- | in-vivo, | AD, | NA |
3550- | ALA,  |   | Mitochondrial Dysfunction and Alpha-Lipoic Acid: Beneficial or Harmful in Alzheimer's Disease? |
- | Review, | AD, | NA |
3549- | ALA,  |   | Important roles of linoleic acid and α-linolenic acid in regulating cognitive impairment and neuropsychiatric issues in metabolic-related dementia |
- | Review, | AD, | NA |
3548- | ALA,  |   | How Alpha Linolenic Acid May Sustain Blood–Brain Barrier Integrity and Boost Brain Resilience against Alzheimer’s Disease |
- | Review, | AD, | NA |
3547- | ALA,  |   | Potential Therapeutic Effects of Lipoic Acid on Memory Deficits Related to Aging and Neurodegeneration |
- | Review, | AD, | NA | - | Review, | Park, | NA |
3546- | ALA,  |   | Cognitive and Mood Effect of Alpha-Lipoic Acid Supplementation in a Nonclinical Elder Sample: An Open-Label Pilot Study |
- | Study, | AD, | NA |
3545- | ALA,  |   | Potential therapeutic effects of alpha lipoic acid in memory disorders |
- | Review, | AD, | NA |
3544- | ALA,  |   | Alpha lipoic acid for dementia |
- | Review, | AD, | NA |
3543- | ALA,  |   | The Effect of Lipoic Acid Therapy on Cognitive Functioning in Patients with Alzheimer's Disease |
- | Study, | AD, | NA |
259- | ALA,  |   | Increased ROS generation and p53 activation in alpha-lipoic acid-induced apoptosis of hepatoma cells |
- | in-vitro, | Liver, | HepG2 | - | in-vitro, | Liver, | FaO |
3541- | ALA,  |   | Insights on alpha lipoic and dihydrolipoic acids as promising scavengers of oxidative stress and possible chelators in mercury toxicology |
- | Review, | Var, | NA |
3540- | ALA,  |   | Thioctic (lipoic) acid: a therapeutic metal-chelating antioxidant? |
- | in-vitro, | NA, | NA |
3539- | ALA,  |   | Alpha-lipoic acid as a dietary supplement: Molecular mechanisms and therapeutic potential |
- | Review, | AD, | NA |
3456- | ALA,  |   | Renal-Protective Roles of Lipoic Acid in Kidney Disease |
- | Review, | NA, | NA |
3455- | ALA,  |   | Alpha-lipoic acid inhibits proliferation and migration of human vascular endothelial cells through downregulating HSPA12B/VEGF signaling axis |
- | in-vitro, | Nor, | HUVECs |
3454- | ALA,  |   | Lipoic acid blocks autophagic flux and impairs cellular bioenergetics in breast cancer and reduces stemness |
- | in-vitro, | BC, | MCF-7 | - | in-vitro, | BC, | MDA-MB-231 |
3451- | ALA,  |   | Alpha-lipoic acid ameliorates H2O2-induced human vein endothelial cells injury via suppression of inflammation and oxidative stress |
- | in-vitro, | Nor, | HUVECs |
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 |
3449- | ALA,  |   | Alpha-Lipoic Acid Downregulates IL-1β and IL-6 by DNA Hypermethylation in SK-N-BE Neuroblastoma Cells |
- | in-vitro, | AD, | SK-N-BE |
272- | ALA,  |   | Evidence that α-lipoic acid inhibits NF-κB activation independent of its antioxidant function |
- | in-vitro, | NA, | HUVECs |
284- | ALA,  |   | Lipoic acid a multi-level molecular inhibitor of tumorigenesis |
- | Review, | Var, | NA |
283- | ALA,  |   | alpha-Lipoic acid reduces matrix metalloproteinase activity in MDA-MB-231 human breast cancer cells |
- | in-vitro, | BC, | MDA-MB-231 |
282- | ALA,  |   | Alpha-lipoic acid induced apoptosis of PC3 prostate cancer cells through an alteration on mitochondrial membrane depolarization and MMP-9 mRNA expression |
- | in-vitro, | Pca, | PC3 |
281- | ALA,  |   | Reactive oxygen species mediate caspase activation and apoptosis induced by lipoic acid in human lung epithelial cancer cells through Bcl-2 down-regulation |
- | in-vitro, | Lung, | H460 |
280- | ALA,  |   | Alpha‐lipoic acid inhibits lung cancer growth via mTOR‐mediated autophagy inhibition |
- | in-vivo, | Lung, | A549 |
279- | ALA,  |   | Lipoic acid-induced oxidative stress abrogates IGF-1R maturation by inhibiting the CREB/furin axis in breast cancer cell lines |
- | in-vitro, | BC, | MCF-7 | - | in-vitro, | BC, | MDA-MB-231 |
278- | ALA,  |   | The Multifaceted Role of Alpha-Lipoic Acid in Cancer Prevention, Occurrence, and Treatment |
- | Review, | NA, | NA |
277- | ALA,  |   | α-lipoic acid modulates prostate cancer cell growth and bone cell differentiation |
- | in-vitro, | Pca, | 22Rv1 | - | in-vitro, | Pca, | C4-2B |
276- | ALA,  |   | Alpha lipoic acid diminishes migration and invasion in hepatocellular carcinoma cells through an AMPK-p53 axis |
- | in-vitro, | HCC, | HepG2 | - | in-vitro, | HCC, | Hep3B |
274- | ALA,  | LDN,  |   | Revisiting the ALA/N (alpha-lipoic acid/low-dose naltrexone) protocol for people with metastatic and nonmetastatic pancreatic cancer: a report of 3 new cases |
- | Human, | PC, | NA |
285- | ALA,  | HCA,  |   | Tolerance of oral lipoid acid and hydroxycitrate combination in cancer patients: first approach of the cancer metabolism research group |
- | Human, | Var, | NA |
267- | ALA,  |   | α-Lipoic Acid Targeting PDK1/NRF2 Axis Contributes to the Apoptosis Effect of Lung Cancer Cells |
- | vitro+vivo, | Lung, | A549 | - | vitro+vivo, | Lung, | PC9 |
266- | ALA,  |   | Lipoic acid decreases Mcl-1, Bcl-xL and up regulates Bim on ovarian carcinoma cells leading to cell death |
- | in-vitro, | Ovarian, | IGROV1 |
265- | ALA,  |   | Alpha-Lipoic Acid Reduces Cell Growth, Inhibits Autophagy, and Counteracts Prostate Cancer Cell Migration and Invasion: Evidence from In Vitro Studies |
- | in-vitro, | Pca, | LNCaP | - | in-vitro, | Pca, | DU145 |
264- | ALA,  |   | α-Lipoic acid induces Endoplasmic Reticulum stress-mediated apoptosis in hepatoma cells |
- | in-vitro, | HCC, | FaO |
263- | ALA,  |   | Alpha-lipoic acid induces p27Kip-dependent cell cycle arrest in non-transformed cell lines and apoptosis in tumor cell lines |
- | in-vitro, | SCC, | Jurkat | - | in-vitro, | SCC, | FaDu |
262- | ALA,  |   | Lipoic acid decreases breast cancer cell proliferation by inhibiting IGF-1R via furin downregulation |
- | in-vitro, | BC, | MCF-7 | - | in-vitro, | BC, | MDA-MB-231 |
261- | ALA,  |   | The natural antioxidant alpha-lipoic acid induces p27(Kip1)-dependent cell cycle arrest and apoptosis in MCF-7 human breast cancer cells |
- | in-vitro, | BC, | MCF-7 |
260- | ALA,  |   | The effects of alpha-lipoic acid on breast of female albino rats exposed to malathion: Histopathological and immunohistochemical study |
- | in-vivo, | BC, | NA |
258- | ALA,  |   | Effects of α-lipoic acid on cell proliferation and apoptosis in MDA-MB-231 human breast cells |
- | in-vitro, | BC, | MDA-MB-231 |
297- | ALA,  |   | Insights on the Use of α-Lipoic Acid for Therapeutic Purposes |
- | Review, | BC, | SkBr3 | - | Review, | neuroblastoma, | SK-N-SH | - | Review, | AD, | NA |
1124- | ALA,  |   | Alpha lipoic acid inhibits proliferation and epithelial mesenchymal transition of thyroid cancer cells |
- | in-vitro, | Thyroid, | BCPAP | - | in-vitro, | Thyroid, | HTH-83 | - | in-vitro, | Thyroid, | CAL-62 | - | in-vitro, | Thyroid, | FTC-133 | - | in-vivo, | NA, | NA |
304- | ALA,  |   | alpha-Lipoic acid induces apoptosis in human colon cancer cells by increasing mitochondrial respiration with a concomitant O2-*-generation |
- | in-vitro, | Colon, | HT-29 |
302- | ALA,  |   | The Antioxidant Alpha-Lipoic Acid Inhibits Proliferation and Invasion of Human Gastric Cancer Cells via Suppression of STAT3-Mediated MUC4 Gene Expression |
- | in-vitro, | GC, | AGS | - | in-vitro, | GC, | BGC-823 | - | in-vitro, | GC, | MKN-28 |
301- | ALA,  | PacT,  | doxoR,  |   | Role of alpha-lipoic acid in counteracting paclitaxel- and doxorubicin-induced toxicities: a randomized controlled trial in breast cancer patients |
- | Human, | BC, | NA |
299- | ALA,  | Cisplatin,  | PacT,  |   | Anti-cancer effects of alpha lipoic acid, cisplatin and paclitaxel combination in the OVCAR-3 ovarian adenocarcinoma cell line |
- | in-vitro, | Ovarian, | OVCAR-3 |
298- | ALA,  | Rad,  |   | Synergistic Tumoricidal Effects of Alpha-Lipoic Acid and Radiotherapy on Human Breast Cancer Cells via HMGB1 |
- | in-vitro, | BC, | MDA-MB-231 |
296- | ALA,  |   | Lipoic acid inhibits cell proliferation of tumor cells in vitro and in vivo |
- | vitro+vivo, | neuroblastoma, | SK-N-SH | - | vitro+vivo, | BC, | SkBr3 |
295- | ALA,  |   | α-Lipoic acid suppresses migration and invasion via downregulation of cell surface β1-integrin expression in bladder cancer cells |
- | in-vitro, | Bladder, | T24 |
291- | ALA,  | HCA,  | MET,  | Dicl,  |   | Metabolic therapies inhibit tumor growth in vivo and in silico |
- | in-vivo, | Melanoma, | B16-F10 | - | in-vivo, | Lung, | LL/2 (LLC1) | - | in-vivo, | Bladder, | MBT-2 |
290- | ALA,  | HCA,  |   | A combination of alpha lipoic acid and calcium hydroxycitrate is efficient against mouse cancer models: preliminary results |
- | vitro+vivo, | Melanoma, | B16-F10 |
289- | ALA,  | HCA,  | EA,  |   | Cancer Metabolism: Fasting Reset, the Keto-Paradox and Drugs for Undoing |
- | Analysis, | NA, | NA |
288- | ALA,  | HCA,  | CAP,  | Octr,  |   | Tumor regression with a combination of drugs interfering with the tumor metabolism: efficacy of hydroxycitrate, lipoic acid and capsaicin |
287- | ALA,  | HCA,  | Lyco,  |   | Metabolic treatment of cancer: intermediate results of a prospective case series |
1235- | ALA,  | Cisplatin,  |   | α-Lipoic acid prevents against cisplatin cytotoxicity via activation of the NRF2/HO-1 antioxidant pathway |
- | in-vitro, | Nor, | HEI-OC1 | - | ex-vivo, | NA, | NA |
1628- | HCA,  | ALA,  |   | Addition of Hydroxy Citrate improves effect of ALA |
- | Review, | Var, | NA |
1255- | PI,  | ALA,  |   | Antileukemic effects of piperlongumine and alpha lipoic acid combination on Jurkat, MEC1 and NB4 cells in vitro |
- | in-vitro, | CLL, | NA |
375- | SNP,  | ALA,  |   | Alpha-Lipoic Acid Prevents Side Effects of Therapeutic Nanosilver without Compromising Cytotoxicity in Experimental Pancreatic Cancer |
- | in-vitro, | PC, | Bxpc-3 | - | in-vitro, | PC, | PANC1 | - | in-vitro, | PC, | MIA PaCa-2 | - | in-vivo, | NA, | NA |
609- | VitC,  | ALA,  | VitK3,  | Se,  |   | Vitamin C and Cancer: Is There A Use For Oral Vitamin C? |
- | in-vitro, | BC, | MDA-MB-231 | - | in-vitro, | Colon, | HCT116 | - | in-vitro, | Ovarian, | PANC1 | - | in-vitro, | Pca, | PC3 |
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