Methotrexate is an antimetabolite and antifolate agent with antineoplastic and immunosuppressant activities. Methotrexate binds to and inhibits the enzyme dihydrofolate reductase, resulting in inhibition of purine nucleotide and thymidylate synthesis and, subsequently, inhibition of DNA and RNA syntheses. Methotrexate also exhibits potent immunosuppressant activity although the mechanism(s) of actions is unclear.
Methotrexate is approved by the Food and Drug Administration (FDA) to be used by itself to treat the following types of gestational trophoblastic tumors, Chorioadenoma destruens, Choriocarcinoma, Hydatidiform mole. Methotrexate is also approved to be used alone or with other drugs to treat acute lymphoblastic leukemia (ALL) that has spread to the central nervous system (CNS) or to keep it from spreading there, and to treat the following, breast cancer, certain types of head and neck cancer, lung cancer, advanced non-Hodgkin lymphoma (NHL), advanced mycosis fungoides (a type of cutaneous T-cell lymphoma), osteosarcoma that has not spread to other parts of the body, following surgery to remove the primary tumor. Methotrexate is also approved to treat the following non-cancer conditions, rheumatoid arthritis, severe psoriasis.
An innovative approach to treating bone tumors - starving cancer cells of the energy they need to grow - could one day provide an alternative to a commonly used chemotherapy drug without the risk of severe side effects, suggests a new study from Washington University School of Medicine in St. Louis.
Researchers led by Ludwig San Diego Member Don Cleveland and Peter Campbell of the Sanger Center have solved the mystery of how free-floating circular DNA fragments, which are almost exclusively found in cancer cells, drive gene amplification to generate drug resistance in cancer.
Cancer is one of the world's greatest health afflictions because, unlike some diseases, it is a moving target, constantly evolving to evade and resist treatment.
Taking the first step and getting medical help for joint pain can be hard, but for autoimmune conditions like rheumatoid arthritis, delaying treatment can lead to increased permanent joint damage and disability.
Primary central nervous system lymphoma (PCNSL) is a type of cancer that develops in the brain and or spinal cord.
A study led by The University of Texas MD Anderson Cancer Center showed that first-line treatment with a regimen of chemotherapy combined with the monoclonal antibody blinatumomab resulted in increased survival and achieved a high rate of measurable residual disease (MRD) negativity for patients who were newly diagnosed with a high-risk form of acute lymphoblastic leukemia (ALL) known as Philadelphia chromosome-negative B-cell ALL (Ph-negative B-ALL).
Clinical investigators from Hackensack Meridian Health John Theurer Cancer Center (JTCC), a member of the Georgetown Lombardi Comprehensive Cancer Center consortium, are to present updates on treatment advances in multiple myeloma (MM), mantle cell lymphoma (MCL), and other types of B-cell lymphoma (BCL) as well as leukemia at the 62nd American Society of Hematology (ASH) Annual Meeting and Exposition, to be held virtually from December 5-8, 2020.
The American College of Rheumatology (ACR) will preview its 2020 Guideline for the Management of Rheumatoid Arthritis (RA) at ACR Convergence, the ACR's annual meeting. The comprehensive, clinical recommendations for pharmacologic treatment of RA includes important updates to the previous guideline released in 2015.
A new study presented at ACR Convergence, the American College of Rheumatology's annual meeting, shows that after three months of treatment with oral methotrexate, adults with primary knee osteoarthritis (OA) with inflammation had significant improvements in physical function and inflammation, a sign that this inexpensive, generic pill may be an important intervention for knee OA.
New research presented at ACR Convergence, the American College of Rheumatology's annual meeting, shows that tuberculosis (TB) screening and ongoing clinical care is needed for people on methotrexate who live in areas where the highly infectious illness is common.
Patients with rheumatoid arthritis (RA) often suffer from what is referred to as interstitial lung disease (ILD).
Disease-related, profound fatigue impairs the quality of life of many people with rheumatic and musculoskeletal diseases.
A novel treatment for advanced mesothelioma is safe and effective and may improve the quality of life for patients who have few treatment options, according to a research abstract presented during a virtual session of the Society of Interventional Radiology's 2020 Annual Scientific Meeting on June 14.
Resistance of cancer cells against therapeutic agents is a major cause of treatment failure, especially in recurrent diseases.
People suffering from rheumatoid arthritis with increased disease activity are more often affected by thrombosis.
The European League Against Rheumatism, EULAR, has published updated recommendations on the treatment of people with psoriatic arthritis.
Aiming to identify new therapeutic strategies for the aggressive hematological disease T-cell acute lymphoblastic leukemia (T-ALL), Rutgers Cancer Institute of New Jersey resident researcher Daniel Herranz Benito, PhD, along with collaborators from Princeton University, found a new drug that has therapeutic effect against T-ALL by inhibiting SHMT and is complementary to standard-of-care treatment.
Today, the American Gastroenterological Association published new COVID-19 guidance for gastroenterologists treating patients with inflammatory bowel disease (IBD): AGA Clinical Practice Update on Management of Inflammatory Bowel Disease During the COVID-19 Pandemic: Expert Commentary.
Scientists observed characteristics of an enzyme inside a nanopore, revealing that it can exist in four different folded states.
Skin diseases affect half of the world's population, but many treatments are not effective, require frequent injections, or cause significant side effects.