Failure of integrin inhibitors in clinical trials can be avoided by redesigning the chemical conformation of these proteins, as shown by a study led by Timothy Springer, a professor in the Department of Biological Chemistry and Molecular Pharmacology at Boston Children's Hospital, and one of the winners of the 2022 Albert Lasker Basic Medical Research Award.
Arizona State University scientists have discovered an unprecedented pathway in a fungus to produce telomerase RNA (TER) from a protein-encoding messenger RNA (mRNA). Unlike in animals and other fungi, this fungal TER is transcribed by RNA polymerase III, lacks a protective 5′ cap and it is processed from the 3′-untranslated region of an mRNA transcript. This telomerase has two essential structural domains that keep it active. For now, scientists have only observed this process in the fungus Ustilago maydis, or Mexican truffle. “In animals, and even in Ascomycota, which is another fungal phylum, the telomerase RNA is transcribed by RNA polymerase II as an independent gene. This is the only case among all different kingdoms in eukaryotes that the telomerase RNA is processed from the mRNA molecule. It is a very unusual biogenesis pathway.” Julian Chen told BioWorld.
The 2022 Nobel Prize in chemistry was awarded to Carolyn Bertozzi of Stanford University, to Morten Meldal of the University of Copenhagen, and – for the second time – to Barry Sharpless of The Scripps Research Institute “for the development of click chemistry and bioorthogonal
chemistry.”
Click chemistry, the Nobel Committee’s Olof Ramström told reporters while announcing the prize, “is almost like it sounds – it’s all about linking different molecules.”
He likened click chemistry to a seatbelt buckle, whose interlocking parts can be attached to many different materials, linking them by snapping the two parts of the buckle together.
“The problem was to find good chemical buckles,” Ramström said – chemicals that “will easily snap together, and importantly, they won’t snap with anything else.”
Vanda Pharmaceuticals Inc. and Olipass Corp. have entered into a research and development collaboration agreement to jointly develop a set of antisense oligonucleotide (ASO) molecules based on Olipass' proprietary modified peptide nucleic acids.
While simultaneous targeting of PD-1 and TGF-β has been previously suggested to be a favorable strategy to reverse immune checkpoint inhibitor (ICI) resistance of tumors, the hydrophobicity of TGF-β inhibitors and latent drug-related adverse events of this treatment hindered its utility.
Researchers at the Walter and Eliza Hall Institute of Medical Research (WEHI) in Melbourne, Australia, have developed a new genome editing technique than can activate any gene, including those that have been silenced, allowing new drug targets and causes of drug resistance to be explored.
A simple injection of muscle tissue could control glucose in patients with type 2 diabetes (T2D). Genetic modification of skeletal muscle and subsequent intramuscular implantation could increase blood sugar absorption and become an effective and long-lasting treatment for this pathology. “We took mice satellite cells and we genetically altered to overexpress GLUT4,” Hagit Shoyhet, researcher at the Levenberg lab of stem-cell and tissue engineering, Technion (Israel), said at the European Association for the study of Diabetes (EASD) 58th Annual Meeting.
Synthetic cells (SCs) armed with recombinant growth factors could contribute to tissue regeneration and healing by promoting angiogenesis. This technology opens the door to its application in other therapies such as transplants that require the remodeling or formation of new blood vessels. In addition, they mark the way to produce intracorporeal biological drugs or the inhibition of the angiogenesis process itself when it comes to blocking the irrigation of a tumor.