1. Signaling Pathways
  2. Cell Cycle/DNA Damage
  3. Antifolate

Antifolate

Antifolates agents work by antagonizing (blocking) the actions of folic acid (vitamin B9). Antifolates act specifically during DNA and RNA synthesis, exerting a cytotoxic effect during the S- phase of the cell cycle. Antifolates targeting folate metabolism played a pivotal role in drug treatment of malignant, microbial, parasitic and chronic inflammatory diseases.

Folate (folic acid) cofactors are essential for the synthesis and metabolism of amino acids, consequently antifolates inhibit cell division, DNA/RNA synthesis and repair and protein synthesis. Some such as Proguanil, Pyrimethamine and Trimethoprim selectively inhibit folate's actions in microbial organisms such as bacteria, protozoa and fungi. Major antifolate enzyme targets and exemplary antifolates that target these enzymes include: dihydrofolate reductase (DHFR), thymidylate synthase (TS), GARFTase and AICARFTase.

Antifolate Related Products (144):

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-149200
    Lysine-methotrexate
    Lysine-methotrexate, an analogue of Methotrexate (HY-14519), is a dihydrofolate reductase (DHFR) inhibitor.
    Lysine-methotrexate
  • HY-B1902S
    Diaveridine-d6
    Diaveridine-d6 (EGIS-5645-d6) is deuterium labeled Diaveridine. Diaveridine (EGIS-5645) is a dihydrofolate reductase (DHFR) inhibitor with a Ki of 11.5 nM for the wild type DHFR and also an antibacterial agent.
    Diaveridine-d<sub>6</sub>
  • HY-10820S
    Pemetrexed-d5
    Pemetrexed-d5 is the deuterium labeled Pemetrexed. Pemetrexed (LY231514) is an antifolate, the Ki values of the pentaglutamate of Pemetrexed (LY231514) are 1.3, 7.2, and 65 nM for inhibits thymidylate synthase (TS), dihydrofolate reductase (DHFR), and glycinamide ribonucleotide formyltransferase (GARFT), respectively.
    Pemetrexed-d<sub>5</sub>
  • HY-117058
    LY243246
    LY243246 ((6S)-DDATHF), the 6S diastereomer of DDATHF, is a potent competitive inhibitor of 5’-phosphoribosylglycinamide formyltransferase (GAR transformylase). 6R- and 6S-diastereomers of DDATHF are remarkably similar and equiactive antimetabolites inhibitory to de novo purine synthesis.
    LY243246
  • HY-157217
    Antitumor agent-99
    Inhibitor
    Antitumor agent-99 (compound 7) is an anticancer agent targeting FRα/β and PCFT. Antitumor agent-99 inhibits R2/PCFT4 (PCFT), RT16(FRα), and D4(FRβ) cells with IC50s of 51.46 nM, 2.53 nM, and 2.98 nM, respectively.
    Antitumor agent-99
  • HY-17556B
    Folinic acid calcium hydrate
    Chemical
    Folinic acid (Leucovorin) calcium hydrate is a biological folic acid and is generally administered along with Methotrexate (HY-14519) as a rescue agent to decrease Methotrexate-induced toxicity.
    Folinic acid calcium hydrate
  • HY-17383S
    Levomefolate-13C5 calcium
    Chemical
    Levomefolate-13C5 calcium)is the 13C-labeled Levomefolate calcium (HY-17383). Levomefolate calcium is a synthetic calcium salt of L-5-methyltetrahydrofolate and an orally active and brain-penetrant folate supplement. Levomefolate calcium incorporates into body folate pools to increase plasma and red blood cell folate levels over time. Levomefolate calcium does not significantly increase folate concentrations in breast milk. Levomefolate calcium can be used for the research of neural tube defects and megaloblastic anemia.
    Levomefolate-<sup>13</sup>C<sub>5</sub> calcium
  • HY-10820BR
    Pemetrexed disodium heptahydrate (Standard)
    Inhibitor
    Pemetrexed (disodium heptahydrate) (Standard) is the analytical standard of Pemetrexed (disodium heptahydrate). This product is intended for research and analytical applications. Pemetrexed disodium heptahydrate is a novel antifolate, the Ki values of the pentaglutamate of LY231514 are 1.3, 7.2, and 65 nM for inhibits thymidylate synthase (TS), dihydrofolate reductase (DHFR), and glycinamide ribonucleotide formyltransferase (GARFT), respectively.
    Pemetrexed disodium heptahydrate (Standard)
  • HY-147661
    DHFR-IN-2
    Inhibitor
    DHFR-IN-2 (compound 4e) is a potent and uncompetitive inhibitor for MtDHFR (dihydrofolate reductase from M. tuberculosis), with an IC50 of 7 μM. DHFR-IN-2 can be used for tuberculosis (TB) research.
    DHFR-IN-2
  • HY-108251R
    Methotrexate metabolite (Standard)
    Methotrexate metabolite (Standard) is the analytical standard of Methotrexate metabolite. This product is intended for research and analytical applications. Methotrexate metabolite (DAMPA), the active metabolite of Methotrexate. Methotrexate is a folic acid antagonist that is widely used as an immunosuppressant and chemotherapeutic agent.
    Methotrexate metabolite (Standard)
  • HY-12784AR
    Cycloguanil hydrochloride (Standard)
    Cycloguanil hydrochloride (Standard) is the analytical standard of Cycloguanil hydrochloride (HY-12784A). This product is intended for research and analytical applications. Cycloguanil hydrochloride is a dihydrofolate reductase (DHFR) inhibitor with an IC50 of 10.8 μM against human DHFR. Cycloguanil hydrochloride blocks the folate metabolic pathway, thereby affecting nucleotide synthesis and interfering with DNA replication. Cycloguanil hydrochloride inhibits DHFR in Plasmodium and is thus used in malaria research. Cycloguanil hydrochloride also potently inhibits DHFR in human cancer cells and blocks the transcriptional activity of STAT3, thereby exhibiting anticancer activity.
    Cycloguanil hydrochloride (Standard)
  • HY-17556A
    Folinic acid disodium
    Chemical
    Folinic acid (Leucovorin) disodium is a biological folic acid and is a forms of vitamin B9. Folinic acid disodium is generally administered along with Methotrexate (HY-14519) as a rescue agent to decrease MTX-induced toxicity. Folinic acid disodium and Sfluorouracil adjuvant chemotherapy shows effective in colon carcinoma.
    Folinic acid disodium
  • HY-B0510A
    Trimethoprim sulfate
    Trimethoprim sulfate is a bacteriostatic antibiotic and an orally active dihydrofolate reductase inhibitor. Trimethoprim sulfate is active against a wide range of Gram-positive and Gram-negative aerobic bacteria. Trimethoprim sulfate has the potential for the research of urinary tract infections, Shigellosis and Pneumocystis pneumonia. Trimethoprim sulfate can inhibit infection of Influenza A virus in chick embryo when combinated with zinc.
    Trimethoprim sulfate
  • HY-10373B
    Trimetrexate isethionate
    Trimetrexate (CI-898) isethionate is an antibiotic, also a potent and orally active dihydrofolate reductase (DHFR) inhibitor, reducing the production of DNA and RNA precursors and leading to cell death, with IC50 values of 4.74 nM and 1.35 nM for human DHFR and Toxoplasma gondii DHFR. Trimetrexate isethionate can also inhibit the growth of various cancer cells. Trimetrexate isethionate can be used for researching Pneumocystis carinii pneumonia (PCP) and cancer.
    Trimetrexate isethionate
  • HY-137267
    10-Methyl-10-deazaaminopterin
    10-Methyl-10-deazaaminopterin is a folate analog and an antifolate. 10-Methyl-10-deazaaminopterin can be used for the research of cancer.
    10-Methyl-10-deazaaminopterin
  • HY-10373A
    Trimetrexate trihydrochloride
    Trimetrexate (CI-898) trihydrochloride is an antibiotic, also a potent and orally active dihydrofolate reductase (DHFR) inhibitor, reducing the production of DNA and RNA precursors and leading to cell death, with IC50 values of 4.74 nM and 1.35 nM for human DHFR and Toxoplasma gondii DHFR. Trimetrexate trihydrochloride can also inhibit the growth of various cancer cells. Trimetrexate trihydrochloride can be used for researching Pneumocystis carinii pneumonia (PCP) and cancer.
    Trimetrexate trihydrochloride
  • HY-10824B
    Talotrexin ammonium
    Talotrexin ammonium is a nonpolyglutamatable antifolate. Talotrexin ammonium improves antitumor activity in a broad spectrum of cancer models by targeting DHFR to inhibit tumor growth.
    Talotrexin ammonium
  • HY-14522
    LY 222306
    LY 222306 is a glycinamide ribonucleotide formyltransferase (GARFT) inhibitor with a Ki of 0.77 nM.
    LY 222306
  • HY-N0913R
    Manninotriose (Standard)
    Wy-45494 (hydrochloride) (Standard) is the analytical standard of Wy-45494 (hydrochloride). This product is intended for research and analytical applications. Wy-45494 hydrochloride (N-Desmethyl Venlafaxine hydrochloride; Wy 45494) is a minor active metabolite of the selective norepinephrine and serotonin reuptake inhibitor (SNRI) venlafaxine. It is formed from venlafaxine via the cytochrome P450 (CYP) isomer CYP3A4.2. Wy-45494 hydrochloride inhibits norepinephrine and serotonin reuptake in rat synaptosomal preparations (IC50s of 4.7 and 1.6 μM, respectively). In vivo, Wy-45494 hydrochloride reversed reserpine-induced hypothermia in mice at a minimum effective dose (MED) of 10 mg/kg.
    Manninotriose (Standard)
  • HY-172935
    FR-β ligand 1
    Ligand
    FR-β ligand 1 (III), a folate receptor-targeting ligand, possesses antitumor activity, high selectivity, and stronger affinity for folate receptor.
    FR-β ligand 1