New study shows how ‘our’ RNA stably binds to artificial nucleic acids — ScienceDaily

As medical research progresses, traditional treatment protocols are being rapidly exhausted. New approaches to treat diseases that do not respond to conventional drugs are the need of the hour. In search for these approaches, science has turned to a wide range of potential answers, including artificial nucleic acids. Artificial or xeno nucleic acids are similar to naturally occurring nucleic acids (think DNA and RNA) — but are produced entirely in the laboratory.

Xeno nucleic acids are essential for the development of nucleic acid-based drugs. To be effective, they need to be able to stably bind to natural RNA (a cellular single-stranded version of the DNA, which is essential for all body processes). However, it is unclear how, if at all, RNA hybridizes with these xeno nucleic acids. A new study by researchers from Japan sheds light on this mechanism, opening doors to the development of potentially revolutionary nucleic acid-based drugs.

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Circular RNA regulates neuronal differentiation by scaffolding an inhibitory transcription complex — ScienceDaily

In a screening for a functional impact to the neuronal differentiation process, Danish researchers identified a specific circular RNA, circZNF827, which surprisingly “taps the brake” on neurogenesis. The results provide an interesting example of co-evolution of a circRNA, and its host-encoded protein product, that regulate each other’s function, to directly impact the fundamental process of neurogenesis.

Correct timing and delicate control of neuronal differentiation is essential for development of a functional nervous system. These events establish a fine-tuned balance between the ability of stem cells to grow/divide and the neuronal progenitors to eventually exit the cell cycle and emerge as mature neurons. A variety of genes become up- or downregulated upon differentiation, giving rise to both neuron-specific proteins and ribonucleic acids (RNAs), including circular RNAs (circRNAs). This class of circRNAs has until recently escaped conventional detection, although these molecules are highly expressed in the mammalian brain. However, the functional roles

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Applied DNA Announces Linear DNA Orders from New Contract Research Customers for Use in RNA Vaccine and Adeno-Associated Virus Applications

– Company also Secures Follow-on Order from Existing Contract Research Customer for Adoptive Cell Therapy (CAR T) Application –

Applied DNA Sciences, Inc. (NASDAQ: APDN) (“Applied DNA” or the “Company”), a leader in Polymerase Chain Reaction (PCR)-based DNA manufacturing, announced that it received orders for its linear DNA to be evaluated in an RNA vaccine and Adeno-Associated Virus (AAV) production from two new contract research customers, respectively. The Company also received a follow-on order for linear DNA from an existing contract research customer for a preclinical CAR T therapy. The follow-on order marks the third order from the existing customer for use across multiple applications. All orders are to be shipped by the end of calendar 2020.

Applied DNA’s unique large-scale PCR production of linear DNA is made capable by its LinearDNA™ platform, a proprietary process that enables large, gram-scale production of single- or double-stranded DNA for diagnostics; therapeutics, such

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