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 (72):

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-14519
    Methotrexate
    99.75%
    Methotrexate (Amethopterin), an antimetabolite and antifolate agent, inhibits the enzyme dihydrofolate reductase, thereby preventing the conversion of folic acid into tetrahydrofolate, and inhibiting DNA synthesis. Methotrexate, also an immunosuppressant and antineoplastic agent, is used for the research of rheumatoid arthritis and a number of different cancers (such as acute lymphoblastic leukemia).
    Methotrexate
  • HY-10820
    Pemetrexed
    99.95%
    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
  • HY-17556
    Folinic acid
    Chemical 99.90%
    Folinic acid (Leucovorin) is a biological folic acid and is generally administered along with Methotrexate (MTX) (HY-14519) as a rescue agent to decrease MTX-induced toxicity.
    Folinic acid
  • HY-B0510
    Trimethoprim
    99.98%
    Trimethoprim is a bacteriostatic antibiotic and an orally active dihydrofolate reductase inhibitor. Trimethoprim is active against a wide range of Gram-positive and Gram-negative aerobic bacteria. Trimethoprim has the potential for the research of urinary tract infections, Shigellosis and Pneumocystis pneumonia. Trimethoprim can inhibit infection of Influenza A virus in chick embryo when combinated with zinc.
    Trimethoprim
  • HY-13664
    Folinic acid calcium
    Chemical 99.71%
    Folinic acid calcium (Leucovorin calcium) is a biological folic acid and is generally administered along with methotrexate (MTX) as a rescue agent to decrease MTX-induced toxicity.
    Folinic acid calcium
  • 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-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-149200
    Lysine-methotrexate
    Lysine-methotrexate, an analogue of Methotrexate (HY-14519), is a dihydrofolate reductase (DHFR) inhibitor.
    Lysine-methotrexate
  • HY-10820A
    Pemetrexed disodium
    99.95%
    Pemetrexed disodium (LY231514 disodium) is an antifolate, the Kis of the pentaglutamate of Pemetrexed disodium are 1.3, 7.2, and 65 nM for inhibits thymidylate synthase (TS), dihydrofolate reductase (DHFR), and glycinamide ribonucleotide formyltransferase (GARFT), respectively.
    Pemetrexed disodium
  • HY-18062
    Pyrimethamine
    99.90%
    Pyrimethamine (Pirimecidan) is a potent, orally active dihydrofolate reductase (DHFR) inhibitor. Pyrimethamine is an antimalarial agent. Pyrimethamine affects the nucleoprotein metabolism of malarial parasites by interference in the folic–folinic acid systems and affects cell division by inhibiting the conversion of dihydrofolate to tetrahydrofolate.
    Pyrimethamine
  • HY-10446
    Pralatrexate
    99.23%
    Pralatrexate is an antifolate and is a potent dihydrofolate reductasean (DHFR) inhibitor with a Ki of 13.4 pM. Pralatrexate is a substrate for folylpolyglutamate synthetase with improved cellular uptake and retention. Pralatrexate has antitumor activities and has the potential for relapsed/refractory T-cell lymphoma treatment. Pralatrexate is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    Pralatrexate
  • HY-13667
    Levoleucovorin Calcium
    Chemical 99.52%
    Levoleucovorin Calcium (Calcium levofolinate), a levo isoform of Leucovorin Calcium (HY-13664), possesses antineoplastic effects. Levoleucovorin Calcium is also an augmentor of 5-fluorouracil (HY-90006) cytotoxicity against cancer.
    Levoleucovorin Calcium
  • HY-P99225
    Mirvetuximab
    99.76%
    Mirvetuximab (M9346A) is an anti-FOLR1 (folate receptor 1) monoclonal antibody. Mirvetuximab is the antibody moiety of novel folate receptor alpha (FRα)-targeting ADC (Mirvetuximab soravtansine). Mirvetuximab soravtansine can be used in ovarian and other FRα-positive cancer research.
    Mirvetuximab
  • HY-B0080
    Folinic acid calcium salt pentahydrate
    ≥98.0%
    Folinic acid calcium salt pentahydrate (Leucovorin calcium salt pentahydrate) is a biological folic acid and is generally administered along with methotrexate (MTX) as a rescue agent to decrease MTX-induced toxicity.
    Folinic acid calcium salt pentahydrate
  • HY-B0510C
    Trimethoprim lactate
    99.97%
    Trimethoprim lactate is a bacteriostatic antibiotic and an orally active dihydrofolate reductase inhibitor. Trimethoprim lactate is active against a wide range of Gram-positive and Gram-negative aerobic bacteria. Trimethoprim lactate has the potential for the research of urinary tract infections, Shigellosis and Pneumocystis pneumonia. Trimethoprim lactate can inhibit infection of Influenza A virus in chick embryo when combinated with zinc.
    Trimethoprim lactate
  • HY-10373
    Trimetrexate
    99.22%
    Trimetrexate (CI-898) 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 can also inhibit the growth of various cancer cells. Trimetrexate can be used for researching Pneumocystis carinii pneumonia (PCP) and cancer.
    Trimetrexate
  • HY-B0806
    Proguanil
    99.84%
    Proguanil, an antimalarial proagent, is metabolized to the active metabolite Cycloguanil (HY-12784). Proguanil is a dihydrofolate reductase (DHFR) inhibitor.
    Proguanil
  • HY-14518
    Aminopterin
    Antagonist ≥98.0%
    Aminopterin (4-Aminofolic acid), the 4-amino derivative of folic acid, is a folic acid antagonist. Aminopterin catalyses the reduction of folic acid to tetrahydrofolic acid, and competitively inhibits dihydrofolate reductase (DHFR) with a Ki of 3.7 pM. Aminopterin has anticancer and immunosuppressive activity. Aminopterin is used in treatment of pediatric leukemia.
    Aminopterin
  • HY-129441
    Metoprine
    99.90%
    Metoprine (BW 197U) is a potent histamine N-methyltransferase (HMT) inhibitor. Metoprine, a diaminopyrimidine derivative, can cross the blood-brain barrier and increase brain histamine levels by inhibiting HMT. Metoprine is an antifolate and antitumor agent.
    Metoprine
  • HY-14521
    Lometrexol
    98.02%
    Lometrexol (DDATHF), an antipurine antifolate, can inhibit the activity of glycinamide ribonucleotide formyltransferase (GARFT) but do not induce detectable levels of DNA strand breaks. Lometrexol can further inhibit de novo purine synthesis, causing abnormal cell proliferation and apoptosis, even cell cycle arrest. Lometrexol has anticancer activity. Lometrexol also is a potent human Serine hydroxymethyltransferase1/2 (hSHMT1/2) inhibitor.
    Lometrexol