Methotrexate Analogs with Enhanced Efficacy and Safety Profile

Scientists at NCATS have developed an analog of Methotrexate (MTX) that incorporates the proteasome-targeting properties of E3-ubiquitin ligase small molecule ligands (MTX-PROTACs) to directly bind to the MTX target dihydrofolate reductase (DHFR) and mark the protein for proteasomal degradation. This unique property may dramatically lower the therapeutic dose required in a treatment setting.

Compounds and Methods for Blocking Transmission of Malarial Parasites

Malaria continues to be a life-threatening disease, causing roughly 241 million cases and an estimated 627,000 deaths in 2020, mostly among African children, although in 2020 nearly half of the world’s population was at risk of malaria. There is a big financial burden for antimalarial treatment; direct costs (for example, illness, treatment, premature death) have been estimated to be at least US $12 billion per year and the cost in lost economic growth is many times more than that.

Novel Methods of MHC-I - LILRB Checkpoint Inhibition

The technology encompasses antibodies and methods that may overcome the shortcomings of commercial checkpoint inhibitors (CPIs). Scientists at NIAID have identified MHC-I specific antibodies that selectively inhibit interactions with inhibitory leukocyte immunoglobin-like receptors (LILRs) but not T-cell receptors. Administration of the antibodies increased proliferation and activation of both innate and adaptive immune system cells, and lead to anti-tumor and anti-viral activity in an array of relevant mouse models of disease.

Neuronal Decoding Algorithm for Prosthetic Limbs

The invention is a new algorithm for decoding neuronal responses based on the discovery that neuronal spike trains can be described using order statistics. The device has applications in the direct control of prosthetic limbs by neuronal signals originating from electrodes placed in the brain. The method allows for decoding neuronal responses by monitoring sequences of potentials from neurons while specific motor tasks are carried out.

Development of Reagents to Examine the Expression and Function of CYP2J Subfamily P450s

Cytochrome P450s catalyze the metabolism of a wide range of exogenous compounds, including drugs, industrial chemicals, environmental pollutants, and carcinogens. The 2C family of cytochrome P450 metabolizes an extensive number of drugs which include tolbutamide, S-Warfarin, mephenytoin, diazepam and taxol. The inventors cloned the cDNAs for several different CYP2J subfamily members including human CYP2J2, rat CYP2J3, mouse CYP2J5, mouse CYP2J6, and mouse CYP2J9. The recombinant proteins were expressed in insect cells.

Endotracheal Tube Using Unique Leak Hole to Lower Dead Space

Through injury or diseases, human or animal lungs may become too weak to sustain a sufficient flow of oxygen to the body and to remove adequate amounts of expired carbon dioxide. The present invention is a tracheal tube ventilation apparatus which efficiently rids patients of expired gases and promotes healthier breathing. This is accomplished by creating one or more leak holes in the wall of the endotracheal tube above the larynx, such as in the back of the mouth (i.e., oropharynx), so that expired gases can leak out of the endotracheal tube.

Tryptophan as a Functional Replacement for ADP-ribose-arginine in Recombinant Proteins

Bacterial toxins such as cholera toxin and diphtheria toxin catalyze the ADP-ribosylation of important cellular target proteins in their human hosts, thereby, as in the case of cholera toxin, irreversibly activating adenylyl cyclase. In this reaction, the toxin transfers the ADP-ribose moiety of Nicotinamide Adenine Dinucleotide (NAD) to an acceptor amino acid in a protein or peptide. ADP-ribosylation leads to a peptide/protein with altered biochemical or pharmacological properties. Mammalians proteins catalyze reactions similar to the bacterial toxins.