[EN] DENDRIMER-GLUTAMINE ANTAGONIST CONJUGATES AND METHODS OF USE THEREOF [FR] CONJUGUÉS DENDRIMÈRE-GLUTAMINE ANTAGONISTE ET LEURS PROCÉDÉS D'UTILISATION
Discovery of 6-Diazo-5-oxo-l-norleucine (DON) Prodrugs with Enhanced CSF Delivery in Monkeys: A Potential Treatment for Glioblastoma
摘要:
The glutamine antagonist 6-diazo-5-oxo-l-norleucine (DON, 1) has shown robust anticancer efficacy in preclinical and clinical studies, but its development was halted due to marked systemic toxicities. Herein we demonstrate that DON inhibits glutamine metabolism and provides antitumor efficacy in a murine model of glioblastoma, although toxicity was observed. To enhance DONs therapeutic index, we utilized a prodrug strategy to increase its brain delivery and limit systemic exposure. Unexpectedly, simple alkyl ester-based prodrugs were ineffective due to chemical instability cyclizing to form a unique diazo-imine. However, masking both DONs amine and carboxylate functionalities imparted sufficient chemical stability for biological testing. While these dual moiety prodrugs exhibited rapid metabolism in mouse plasma, several provided excellent stability in monkey and human plasma. The most stable compound (5c, methyl-POM-DON-isopropyl-ester) was evaluated in monkeys, where it achieved 10-fold enhanced cerebrospinal fluid to plasma ratio versus DON. This strategy may provide a path to DON utilization in glioblastoma multiforme patients.
[EN] PRODRUGS OF 6-DIAZO-5-OXO-L-NORLEUCINE<br/>[FR] PROMÉDICAMENTS DE 6-DIAZO-5-OXO-L-NORLEUCINE
申请人:UNIV JOHNS HOPKINS
公开号:WO2022232565A1
公开(公告)日:2022-11-03
The present disclosure provides prodrugs of 6-diazo-5-oxo-L-norleucine (DON) for use in treating or preventing a disease, disorder, or condition in which the inhibition of glutamineutilizing enzymes provides a benefit.
[EN] PRODRUGS OF GLUTAMINE ANALOGS<br/>[FR] PROMÉDICAMENTS D'ANALOGUES DE GLUTAMINE
申请人:UNIV JOHNS HOPKINS
公开号:WO2017023774A9
公开(公告)日:2017-11-23
GLUTAMINE ANTAGONISTS FOR THE TREATMENT OF COGNITIVE DEFICITS AND PSYCHIATRIC DISORDERS
申请人:THE JOHNS HOPKINS UNIVERSITY
公开号:US20180193362A1
公开(公告)日:2018-07-12
The disclosure provides compounds having formula (I):
and the pharmaceutically acceptable salts thereof, wherein R
1
, R
2
, R
2
′, and X are as defined as set forth in the specification, for use in treating cognitive deficits and/or psychiatric disorders, such as those associated with neurological or neurodegenerative disorders, psychiatric or mood disorders, and HIV-associated neurocognitive disorders (HAND). Compounds having formula (I) are prodrugs that release glutamine analogs, e.g., 6-diazo-5-oxo-L-norleucine (DON).
METHODS AND COMPOSITIONS FOR TREATING METABOLIC REPROGRAMMING DISORDERS
申请人:THE JOHNS HOPKINS UNIVERSITY
公开号:US20180221337A1
公开(公告)日:2018-08-09
The disclosure provides methods of treating a condition, disease, or disorder in a subject that involves metabolically reprogrammed cells whose activation, function, growth, proliferation, or survival depends on increased activity of at least one metabolic pathway selected from the group consisting of glutamine metabolism, glycolysis, and fatty acid synthesis, comprising administering to the subject a compound having formula (I):
and the pharmaceutically acceptable salts thereof, wherein R
1
, R
2
, R
2
′, and X are as defined as set forth in the specification. Compounds having formula (I) are prodrugs that release glutamine analogs, e.g., 6-diazo-5-oxo-L-norleucine (DON).
METHODS FOR CANCER AND IMMUNOTHERAPY USING PRODRUGS OF GLUTAMINE ANALOGS
申请人:THE JOHNS HOPKINS UNIVERSITY
公开号:US20180221395A1
公开(公告)日:2018-08-09
The disclosure provides methods of treating cancer in a subject or preventing a relapse or reducing the incidence of relapse of cancer in a subject in remission, comprising administering to the subject: (a) a therapeutically effective amount of an immunotherapeutic agent, e.g., an immune checkpoint blockade therapy, an adoptive cellular therapy, a marrow-infiltrating lymphocytes, an adenosine A2aR inhibitor, or an antibody; and (b) a compound having formula (I):
and the pharmaceutically acceptable salts thereof, wherein R
1
, R
2
, R
2′
, and X are as defined as set forth in the specification. Compounds having formula (I) are prodrugs that release glutamine analogs, e.g., 6-diazo-5-oxo-L-norleucine (DON).