Home Metabolism DHFR inhibitor - Dehydrogenase inhibitor Methotrexate disodium For research use only.

Methotrexate disodium

Synonyms: Amethopterin disodium; CL14377 disodium; WR19039 disodium

Methotrexate sodium, an analog of folic acid, is a nonspecific inhibitor of the dihydrofolate reductase(DHFR) of bacteria and cancerous cells as well as normal cells. It forms an inactive ternary complex with DHFR and NADPH. Methotrexate (MTX) induces apoptosis.

Methotrexate disodium Chemical Structure

Methotrexate disodium Chemical Structure

CAS: 7413-34-5

Selleck's Methotrexate disodium has been cited by 19 publications

Purity & Quality Control

Batch: Purity: 99.69%
99.69

Methotrexate disodium Related Products

Signaling Pathway

DHFR Signaling Pathways

DHFR Signaling Pathway

Choose Selective DHFR Inhibitors

Biological Activity

Description Methotrexate sodium, an analog of folic acid, is a nonspecific inhibitor of the dihydrofolate reductase(DHFR) of bacteria and cancerous cells as well as normal cells. It forms an inactive ternary complex with DHFR and NADPH. Methotrexate (MTX) induces apoptosis.
Targets
hDHFR [4]
(Activated peripheral T cells)
24 nM
In vitro
In vitro Methotrexate (0.1-10 mM) induces apoptosis of in vitro activated T cells from human peripheral blood. Methotrexate achieves clonal deletion of activated T cells in mixed lymphocyte reactions. Methotrexate can selectively delete activated peripheral blood T cells by a CD95-independent pathway. [1] Methotrexate is taken up by cells via the reduced folate carrier and then is converted within the cells to polyglutamates. Methotrexate leads to diminished production of leukotriene B4 by neutrophils stimulated ex vivo. Methotrexate polyglutamates inhibit the enzyme aminoimidazolecarboxamidoadenosineribonucleotide (AICAR) transformylase more potently than the other enzymes involved in purine biosynthesis. Methotrexate is also known to suppress TNF activity by suppressing TNF-induced nuclear factor-κB activation in vitro, in part related to a reduction in the degradation and inactivation of an inhibitor of this factor, IκBα, and probably related to the release of adenosine. Methotrexate suppresses the production of both TNF and IFN-γ by T-cell-receptor-primed T lymphocytes from both healthy human donors and RA patients. Methotrexate treatment is associated with a significant decrease of TNF-α-positive CD4+ T cells, while the number of T cells expressing the anti-inflammatory cytokine IL-10 increased. [2]
In Vivo
In vivo Methotrexate increases splenocyte AICAR content, raised adenosine concentrations in exudates from carrageenan-inflamed air pouches, and markedly inhibits leukocyte accumulation in inflamed air pouches in mice. Methotrexate-mediated reduction in leukocyte accumulation is partially reversed by injection of adenosine deaminase (ADA) into the air pouch, completely reverses by a specific adenosine A2 receptor antagonist, 3,7-dimethyl-1-propargylxanthine (DMPX), but not affected by an adenosine A1 receptor antagonist, 8-cyclopentyl-dipropylxanthine in mice. [3]

Chemical Information & Solubility

Molecular Weight 498.4 Formula

C20H20N8O5.2Na
CAS No. 7413-34-5 SDF --
Smiles CN(CC1=CN=C2C(=N1)C(=NC(=N2)N)N)C3=CC=C(C=C3)C(=O)NC(CCC(=O)[O-])C(=O)[O-].[Na+].[Na+]
Storage (From the date of receipt)

In vitro
Batch:

Water : 99 mg/mL

DMSO : Insoluble ( Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)


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In vivo
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Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

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