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An ancient RNA-guided system could simplify delivery of gene editing therapies By Corie Lok February 27, 2025 Breadcrumb Home An ancient RNA-guided system could simplify delivery of gene editing therapies The programmable proteins are compact, modular, and can be directed to modify DNA in human cells.
Cas9 ancestor engineered into a compact genome editing tool By Tom Ulrich May 14, 2025 Breadcrumb Home Cas9 ancestor engineered into a compact genome editing tool Researchers adapt a compact RNA-guided enzyme from bacteria for a variety of DNA editing tasks in human cells.
The core of the CRISPR immune response is a guide RNA (gRNA) that binds to a CRISPR-associated (Cas) protein. If the same virus invades the cell a second time, the gRNA’s spacer sequence will bind to the matching viral DNA sequence, then be cut by the Cas protein. Visit our website to get a copy. Join Asimov Press.
William Studier for development of widely used protein- and RNA-production platform By Corie Lok May 14, 2024 Breadcrumb Home Merkin Prize in Biomedical Technology awarded to F. Merkin Prize in Biomedical Technology for his development of an efficient, scalable method of producing RNA and proteins in the laboratory.
But, regardless of which was first, they all operated with the same core data as their mechanism for understanding life: messenger RNA ( mRNA ). The 2025 genetic network paper fit that bill exactly. On the surface, they hadn't deviated much from the early 2020s: a virus infected a cell and released the genetic therapy hidden within.
Made from a Cas9 nickase (the histidine at amino acid position 840 is swapped for an alanine) fused to a reverse transcriptase enzyme (which makes DNA from RNA; transcription in reverse), prime editing clinical trials are expected to begin by 2025. Nature Communications. grams per liter titer. coli infections and eradicate biofilms.
Made from a Cas9 nickase (the histidine at amino acid position 840 is swapped for an alanine) fused to a reverse transcriptase enzyme (which makes DNA from RNA; transcription in reverse), prime editing clinical trials are expected to begin by 2025. Nature Communications. grams per liter titer. coli infections and eradicate biofilms.
ESM is a protein language model that captures certain aspects of protein structure and function, for example, but is blind to DNA or RNA-level features that drive cell behavior. Evo 2 was trained on DNA sequences but can make predictions about myriad aspects of biology, including RNA stability and protein structures. & McCarty N.
Published June 30, 2025 Jonathan Gardner Senior Reporter post share post print email license Moderna announced results from an influenza vaccine clinical trial on June 30, 2025. as early as the 2026-2027 flu season. An mRNA cancer vaccine it developed has generated promising data , but remains in late-stage testing.
The influenza virus was not isolated until 1933, when an epidemic in London enabled British researchers Wilson Smith, Christopher Andrewes, and Patrick Laidlaw to collect human influenza virus from patients’ throat washings. The inoculated eggs were incubated, allowing the virus to multiply. Subscribe to Asimov Press!
You have to add a virus-derived cell fusion protein that delivers the genetic payload to the bound cell, but thats easy, as virus particles have evolved cell fusion as an infection strategy. The most typical genetic cargo for LNP-mediated in vivo CAR T cell production is messenger RNA (mRNA).
This deadly structure allows it to kill its victims by preventing their cells from making messenger RNA (mRNA) through inhibition of the enzyme RNA Polymerase II. The ADC approach allows healthy cells to avoid the deadly effects suffered by the cancer cells as their RNA polymerase II enzymes are shut down.
This allowed for the isolation, purification, and study of minute amounts of DNA, RNA, proteins, and cells — tasks ill-suited to the larger centrifuges. Pharmaceutical and biotech researchers produce vaccines, extract DNA and RNA, separate nanoparticles, and prepare samples. ” Asimov Press (2025). Cite: McLain, R.
Each cell contains messenger RNA (mRNA) that carries instructions for making proteins, so Prasher first extracted mRNA from Aequorea and converted it into complementary DNA (cDNA). This cDNA, housed within a bacteriophage virus that easily replicates inside bacteria, holds copies of many jellyfish genes, including those for GFP.
Many students are taught that the Central Dogma is simply “DNA → RNA → protein.” In 1956, Crick was working on a lecture that would bring together what was then known about the “flow of information” between DNA, RNA, and protein in cells.
By the time health officials confirmed Ebola, which has an average R₀ of 1.95 , as the culprit, the virus had already spilled into neighboring countries. Rapid antigen tests detect viral surface proteins — physical fragments of the virus, like the spike or nucleocapsid proteins — using antibodies embedded in a test strip.
” To those skeptics, it seemed ludicrous that a single protein could be infectious in the absence of DNA or RNA. All one needs to edit genes today is to modify a short RNA guide to direct a Cas enzyme toward a new target. ” Asimov Press (2025). Or look at vaccines and the arc of immunization. Cite: McCarty, N.
In January 2025, the incoming Trump administration issued a 90-day freeze on PEPFAR while it conducts a “programmatic efficiencies” review. Since zidovudine failed to interfere with DNA-to-DNA replication, Ostertag wondered if it could block RNA-to-DNA replication instead. By February, the U.S. In South Africa, 12.6
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