4-Deoxypyridoxine

Last updated
4-Deoxypyridoxine
4-Deoxypyridoxine.png
Names
Preferred IUPAC name
5-(Hydroxymethyl)-2,4-dimethylpyridin-3-ol
Identifiers
3D model (JSmol)
ChemSpider
PubChem CID
UNII
  • InChI=1S/C8H11NO2/c1-5-7(4-10)3-9-6(2)8(5)11/h3,10-11H,4H2,1-2H3 Yes check.svgY
    Key: KKOWAYISKWGDBG-UHFFFAOYSA-N Yes check.svgY
  • InChI=1/C8H11NO2/c1-5-7(4-10)3-9-6(2)8(5)11/h3,10-11H,4H2,1-2H3
    Key: KKOWAYISKWGDBG-UHFFFAOYAH
  • CC1=C(C(=NC=C1CO)C)O
  • Oc1c(c(cnc1C)CO)C
Properties
C8H11NO2
Molar mass 153.181 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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4-Deoxypyridoxine is a vitamin B6 antagonist. [1] It may be toxic to developing embryos since it can have negative effects on collagen and elastin during development. [2] The presence of this compound can produce vitamin B6 deficiency, which suppresses the immune system. [3] 4-Deoxypyridoxine lowers vitamin B6 concentration by competitively inhibiting some of the enzymes necessary for the regeneration of vitamin B6. [4] The related immunosuppression can be beneficial in animal models of Trichinella spiralis infections. [5] 4-Deoxypyridoxine has also been described as an inhibitor of sphingosine-1-phosphate lyase. [6] The inhibition of sphingosine-1-phosphate lyase by 4-Deoxypyridoxine has been shown to prevent cell death of ex-vivo animal pancreatic islets. The use of 4-Deoxypyridoxine to prevent stress-induced apoptosis is suggest that the compound, as well as other inhibitors of sphingosine-1-phosphate lyase, could be used to increase the viability of donor pancreatic tissue in the treatment of diabetes. [7]

Related Research Articles

Vitamin B<sub>6</sub> Class of chemically related vitamins

Vitamin B6 is one of the B vitamins, and thus an essential nutrient. The term refers to a group of six chemically similar compounds, i.e., "vitamers", which can be interconverted in biological systems. Its active form, pyridoxal 5′-phosphate, serves as a coenzyme in more than 140 enzyme reactions in amino acid, glucose, and lipid metabolism.

Aromatic <small>L</small>-amino acid decarboxylase Class of enzymes

Aromatic L-amino acid decarboxylase, also known as DOPA decarboxylase (DDC), tryptophan decarboxylase, and 5-hydroxytryptophan decarboxylase, is a lyase enzyme, located in region 7p12.2-p12.1.

<span class="mw-page-title-main">Pyridoxal phosphate</span> Active form of vitamin B6

Pyridoxal phosphate (PLP, pyridoxal 5'-phosphate, P5P), the active form of vitamin B6, is a coenzyme in a variety of enzymatic reactions. The International Union of Biochemistry and Molecular Biology has catalogued more than 140 PLP-dependent activities, corresponding to ~4% of all classified activities. The versatility of PLP arises from its ability to covalently bind the substrate, and then to act as an electrophilic catalyst, thereby stabilizing different types of carbanionic reaction intermediates.

<span class="mw-page-title-main">Folinic acid</span> Derivative of folic acid used in cancer treatment

Folinic acid, also known as leucovorin, is a medication used to decrease the toxic effects of methotrexate and pyrimethamine. It is also used in combination with 5-fluorouracil to treat colorectal cancer and pancreatic cancer, may be used to treat folate deficiency that results in anemia, and methanol poisoning. It is taken by mouth, injection into a muscle, or injection into a vein.

<span class="mw-page-title-main">Sphingosine kinase</span> Class of enzymes

Sphingosine kinase (SphK) is a conserved lipid kinase that catalyzes formation sphingosine-1-phosphate (S1P) from the precursor sphingolipid sphingosine. Sphingolipid metabolites, such as ceramide, sphingosine and sphingosine-1-phosphate, are lipid second messengers involved in diverse cellular processes. There are two forms of SphK, SphK1 and SphK2. SphK1 is found in the cytosol of eukaryotic cells, and migrates to the plasma membrane upon activation. SphK2 is localized to the nucleus.

<span class="mw-page-title-main">Lipid signaling</span> Biological signaling using lipid molecules

Lipid signaling, broadly defined, refers to any biological cell signaling event involving a lipid messenger that binds a protein target, such as a receptor, kinase or phosphatase, which in turn mediate the effects of these lipids on specific cellular responses. Lipid signaling is thought to be qualitatively different from other classical signaling paradigms because lipids can freely diffuse through membranes. One consequence of this is that lipid messengers cannot be stored in vesicles prior to release and so are often biosynthesized "on demand" at their intended site of action. As such, many lipid signaling molecules cannot circulate freely in solution but, rather, exist bound to special carrier proteins in serum.

Sphingosine-1-phosphate (S1P) is a signaling sphingolipid, also known as lysosphingolipid. It is also referred to as a bioactive lipid mediator. Sphingolipids at large form a class of lipids characterized by a particular aliphatic aminoalcohol, which is sphingosine.

<span class="mw-page-title-main">Pyridoxine 5′-phosphate oxidase</span> Class of enzymes

Pyridoxine 5′-phosphate oxidase is an enzyme, encoded by the PNPO gene, that catalyzes several reactions in the vitamin B6 metabolism pathway. Pyridoxine 5′-phosphate oxidase catalyzes the final, rate-limiting step in vitamin B6 metabolism, the biosynthesis of pyridoxal 5′-phosphate, the biologically active form of vitamin B6 which acts as an essential cofactor. Pyridoxine 5′-phosphate oxidase is a member of the enzyme class oxidases, or more specifically, oxidoreductases. These enzymes catalyze a simultaneous oxidation-reduction reaction. The substrate oxidase enzymes is hydroxlyated by one oxygen atom of molecular oxygen. Concurrently, the other oxygen atom is reduced to water. Even though molecular oxygen is the electron acceptor in these enzymes' reactions, they are unique because oxygen does not appear in the oxidized product.

Ceramidase is an enzyme which cleaves fatty acids from ceramide, producing sphingosine (SPH) which in turn is phosphorylated by a sphingosine kinase to form sphingosine-1-phosphate (S1P).

<span class="mw-page-title-main">S1PR1</span> Protein and coding gene in humans

Sphingosine-1-phosphate receptor 1, also known as endothelial differentiation gene 1 (EDG1) is a protein that in humans is encoded by the S1PR1 gene. S1PR1 is a G-protein-coupled receptor which binds the bioactive signaling molecule sphingosine 1-phosphate (S1P). S1PR1 belongs to a sphingosine-1-phosphate receptor subfamily comprising five members (S1PR1-5). S1PR1 was originally identified as an abundant transcript in endothelial cells and it has an important role in regulating endothelial cell cytoskeletal structure, migration, capillary-like network formation and vascular maturation. In addition, S1PR1 signaling is important in the regulation of lymphocyte maturation, migration and trafficking.

<span class="mw-page-title-main">S1PR4</span> Protein-coding gene in the species Homo sapiens

Sphingosine-1-phosphate receptor 4 also known as S1PR4 is a human gene which encodes a G protein-coupled receptor which binds the lipid signaling molecule sphingosine 1-phosphate (S1P). Hence this receptor is also known as S1P4.

<span class="mw-page-title-main">S1PR2</span> Protein and coding gene in humans

Sphingosine-1-phosphate receptor 2, also known as S1PR2 or S1P2, is a human gene which encodes a G protein-coupled receptor which binds the lipid signaling molecule sphingosine 1-phosphate (S1P).

<span class="mw-page-title-main">S1PR5</span> Protein-coding gene in the species Homo sapiens

Sphingosine-1-phosphate receptor 5 also known as S1PR5 is a human gene which encodes a G protein-coupled receptor which binds the lipid signaling molecule sphingosine 1-phosphate (S1P). Hence this receptor is also known as S1P5.

<span class="mw-page-title-main">Pyridoxine 5'-phosphate synthase</span> Class of enzymes

In enzymology, a pyridoxine 5'-phosphate synthase (EC 2.6.99.2) is an enzyme that catalyzes the chemical reaction

<span class="mw-page-title-main">PDXK</span> Protein-coding gene in the species Homo sapiens

Pyridoxal kinase is an enzyme that in humans is encoded by the PDXK gene.

Vitamins occur in a variety of related forms known as vitamers. A vitamer of a particular vitamin is one of several related compounds that performs the functions of said vitamin and prevents the symptoms of deficiency of said vitamin.

<span class="mw-page-title-main">Ginkgotoxin</span> Chemical compound

Ginkgotoxin (4'-O-methylpyridoxine) is a neurotoxin naturally occurring in Ginkgo biloba. It is an antivitamin structurally related to vitamin B6 (pyridoxine). It has the capacity to induce epileptic seizures.

<span class="mw-page-title-main">Sphingosine-1-phosphate receptor</span>

The sphingosine-1-phosphate receptors are a class of G protein-coupled receptors that are targets of the lipid signalling molecule Sphingosine-1-phosphate (S1P). They are divided into five subtypes: S1PR1, S1PR2, S1PR3, S1PR4 and S1PR5.

<span class="mw-page-title-main">Sphingosine-1-phosphate receptor modulator</span> Drug class

Sphingosine-1-phosphate receptor modulators are a class of drugs used as immunomodulators, most notably in cases of multiple sclerosis.

Megavitamin-B6 syndrome is a collection of symptoms that can result from chronic supplementation, or acute overdose, of vitamin B6. While it is also known as hypervitaminosis B6, vitamin B6 toxicity and vitamin B6 excess, megavitamin-b6 syndrome is the name used in the ICD-10.

References

  1. ↑ Coburn SP, Mahuren JD, Schaltenbrand WE, Wostmann BS, Madsen D (1 February 1981). "Effects of vitamin B-6 deficiency and 4'- deoxypyridoxine on pyridoxal phosphate concentrations, pyridoxine kinase and other aspects of metabolism in the rat". J. Nutr. 111 (2): 391–8. doi:10.1093/jn/111.2.391. PMID   6257871.
  2. ↑ Bird TA, Levene CI (1983). "The effect of a vitamin B-6 antagonist, 4-deoxypyridoxine, on the cross-linking of collagen in the developing chick embryo". Biochem. J. 210 (3): 633–8. doi:10.1042/bj2100633. PMC   1154271 . PMID   6135414.
  3. ↑ Trakatellis A, Dimitriadou A, Exindari M, et al. (1992). "Effect of pyridoxine deficiency on immunological phenomena". Postgrad Med J. 68 (Suppl 1): S70–7. PMID   1409221.
  4. ↑ Sheridan, E.; Gillespie, S.; Johnson, C. R.; Lecavalier, L.; Smith, T.; Swiezy, N.; Turner, K.; Pritchett, J.; Mruzek, D. W.; Evans, A. N.; Bearss, K.; Scahill, L. (2021). "Using Parent Target Problem Narratives to Evaluate Outcomes in Children with Autism Spectrum Disorder". Research on Child and Adolescent Psychopathology. 49 (11): 1527–1535. doi:10.1007/s10802-021-00843-8. PMID   34213717. S2CID   235709478.
  5. ↑ Frydas S, Papaioanou N, Vlemmas I, et al. (1999). "Vitamin B6-deficient diet plus 4-deoxypyridoxine (4-DPD) reduces the inflammatory response induced by T. spiralis in diaphragm, masseter and heart muscle tissue of mice". Mol. Cell. Biochem. 197 (1–2): 79–85. doi:10.1023/A:1006958310081. PMID   10485327. S2CID   23457740.
  6. ↑ Weigel, Cynthia; Hüttner, Sören S.; Ludwig, Kristin; Krieg, Nadine; Hofmann, Susann; Schröder, Nathalie H.; Robbe, Linda; Kluge, Stefan; Nierhaus, Axel; Winkler, Martin S.; Rubio, Ignacio (2020-08-01). "S1P lyase inhibition protects against sepsis by promoting disease tolerance via the S1P/S1PR3 axis". eBioMedicine. 58: 102898. doi:10.1016/j.ebiom.2020.102898. ISSN   2352-3964. PMC   7381498 . PMID   32711251.
  7. ↑ Lee, Hakmo; Seon Park, Ho; Hee Hong, Shin; Kyung Choi, Ok; Cho, Sung-Dae; Park, Jongwoo; Eun Oh, Ju; Soo Chung, Sung; Jung, Hye Seung; Park, Kyong Soo (2013). "4-deoxypyridoxine improves the viability of isolated pancreatic islets ex vivo". Islets. 5 (3): 116–121. doi: 10.4161/isl.25254 . PMID   23756681. S2CID   22959354.


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