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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.
By Allessandra DiCorato May 16, 2024 Credit: Deverman lab Brain vasculature (in blue) surrounded by RNA (in orange) transcribed from the gene delivered to the brain in humanized mice using an engineered AAV targeting the human transferrin receptor.
Williams January 8, 2024 Credit: Susanna Hamilton, Broad Communications Researchers have developed virus-like particles that can deliver gene-editing cargo to cells, including those in the mouse brain. By Sarah C.P. They also delivered prime editors to the mouse brain, and did not detect any off-target editing.
Induced pluripotent stem cell (iPSC) therapies have the potential to treat a wide variety of devastating diseases. While iPSC therapies hold great promise, several challenges remain, including poor infiltration of cytotoxic lymphocytes into solid tumours and insufficient cytotoxicity of myeloid cells.
Gene Therapy Gene therapy operates on the principle of modulating the DNA blueprint of cells to induce a therapeutic response. Gene therapy trials explore using lentiviral vectors to deliver a functional copy of the HBB gene to hematopoietic stem cells, the progenitors of all blood cells.
To treat Ebola virus infections, researchers are taking a close look at a key piece of the virus: polymerase. Polymerase is a viral protein that directs how Ebola virus replicates its genome as it infects new hosts. Drugs that target polymerase could potentially treat Ebola virus infections and save lives.
Introduction Messenger RNA (mRNA) technology has emerged as one of the most significant medical breakthroughs. The Expanding Role of mRNA in Cancer Therapy One of the most exciting applications of mRNA therapeutics lies in cancer treatment, where leveraging the immune system to target tumors offers a novel approach.
The team analyzed the full transcriptome of cells from nearly 100 regions across the mouse brain using high-throughput single-nucleus RNA sequencing, the preferred approach for efforts to create a human brain atlas. In their study, the researchers focused on a variant of an engineered recombinant adeno-associated virus (rAAV) known as PHP.eB.
Novartis today announced a license option agreement with Voyager Therapeutics, a gene therapy company focused on next-generation adeno-associated virus (AAV) technologies, for three capsids to use in potential gene therapies for neurological diseases, with options to access capsids for two other targets.
Most targeted cancer therapies used today operate by inhibiting targets along well-known oncogenic signalling cascades. The reactivation of oncogenic signalling upstream or downstream of the driving oncogene is a well-studied source of resistance to targeted cancer therapies.
Norbert Makori and Pierre Jolicoeur: The Benefits of Combining Preclinical and Bioanalytical for Your Gene Therapy Studies pmjackson Fri, 03/01/2024 - 22:20 Recent advances in gene therapy have allowed for diseases to be approached differently. q: How can Altasciences support sponsors’ Gene Therapy Programs?
A naturally occurring system for tuning CRISPR-Cas9 expressing in bacteria, identified in a study published in Cell , could have implications for gene editing therapies as well. A CRISPR-Cas9 system has two components: the Cas9 guide RNA that directs the system to edit a particular gene, and the CRISPR “scissors” that make the cut.
Similar to other enveloped RNA viruses such as HIV, RSV and Influenza, SARS-CoV-2 is also an RNAvirus that has a trimeric spike (S) protein on its viral envelope. FDA approval for prevention of infection caused by all known subtypes of hepatitis B virus in adults age 18 years and older. About Dynavax.
During challenge with the original SARS-CoV-2 virus, animals vaccinated with CV2CoV were found to be better protected based on highly effective clearance of the virus in the lungs and nasal passages. Clearance of the virus in the lungs and nasal passages of the animals was tested following challenge infection with the original virus.
In the midst of the global pandemic, the analysis found no antiretroviral therapy interruptions across the entirety of the ongoing clinical development programme for long-acting cabotegravir and rilpivirine. Of those participants who transitioned back to injectables, the median duration of oral therapy was 51 days.
Similar to other enveloped RNA viruses such as HIV, RSV and Influenza, SARS-CoV-2 is also an RNAvirus that has a trimeric spike (S) protein on its viral envelope. Additionally, Clover is leveraging its in-house GMP biomanufacturing capabilities to support large-scale production of its biologic therapies.
For security reasons, at the time COVID-19 had to be grown in BSL-3 labs, which can be dangerous because they were handling the live virus. These are synthetic, not the live virus, so do not pose a risk of infection. Researchers were able to use our synthetic RNA controls as a reference to verify and validate assays.
” Dr. Richard Hatchett , Chief Executive Officer of CEPI, commented: “To end the acute phase of this pandemic, and to control the virus in the longer term, the world needs multiple safe and effective vaccines which can be deployed in a range of populations and countries. About CpG 1018.
That’s how easy it’s for SARS-CoV-2, the virus that causes COVID-19, to enter your nose. “We used NanoSTING because the adjuvant for intranasal vaccination and single-cell RNA-sequencing to verify the nasal-associated lymphatic tissue as an inductive site upon vaccination. Breathe in, exhale. But now, we’re one step closer.
The outcome confirms that only one single case was attributable to the original SARS-CoV-2 virus. “In addition, the variant-rich environment underlines the importance of developing next-generation vaccines as new virus variants continue to emerge.” More than half of the cases (57%) were caused by Variants of Concern.
The once-a-month regimen was preferred by nine out of 10 patients over the daily oral therapy. While much more remains to be done to make HIV history, today’s milestone reminds us how far medical innovation has come since the first reported cases of the virus almost 40 years ago.”. clinical practices. Most Read Today. Source link.
5 of its ongoing Phase 2 extension study, Study 211, examining vebicorvir (VBR, or ABI-H0731) in patients with hepatitis B virus infection. The company’s other two Phase 2 trials, Study 201 and 202, showed that the addition of VBR to NrtI therapy achieved a quicker, deeper level of viral suppression than with NrtI alone.
In the study, immunization with the hAd5-COVID-19 vaccine inhibited SARS-CoV-2 virus replication in 100% (10 of 10) of Rhesus macaques, with a drop in viral replication starting on the first day of vaccine administration, and undetectable viral levels as early as three to five days post-challenge in most of the animals.
. “Innovation in cancer treatment is realized through collaboration, and the physicians and researchers at Emory’s Winship Cancer Institute have consistently shown their commitment to developing novel cancer therapies using this collaborative approach,” said Chadi Nabhan , M.D., Ramalingam , M.D.,
In addition to sequencing patients, the researchers looked for antibodies to the HTLV-1 virus in the patients’ spinal fluid. We each have two DNA copies of the KIF1A gene; each copy is called an allele and makes its own RNA, which is then translated into protein. What is an allele specific ASO?
Immunization of non-human primates (rhesus macaques) with BNT162b2, a nucleoside-modified messenger RNA (modRNA) candidate that expresses the SARS-CoV-2 spike glycoprotein, resulted in strong anti-viral effects against an infectious SARS-CoV-2 challenge. billion doses by the end of 2021.
Detects, confirms and differentiates HIV-1 and HIV-2 infections providing clinicians with critical diagnostic data for personalised management of patients with HIV – from appropriate counseling on disease differences to targeted therapy. Human immunodeficiency virus (HIV) is categorized into two types, HIV-1 and HIV-2.
Their solution was to fuse hairpins, little loops made from RNA or DNA, at various positions along the DNA strand that was being sequenced. Stephen Malina is Head of Engineering at Dyno Therapeutics, a company using machine learning to design better viral vectors for gene therapy. Cite: Stephen Malina. “Driving Toward Nanopores.”
Coronaviruses are enveloped, positive-sense, single-stranded RNA viruses. The genomic RNA of CoVs has a 5′-cap structure and 3′-poly-A tail and contains at least 6 open reading frames (ORFs). Although compounds have been reported to inhibit 3CLpro activity, they have not been approved as coronavirus therapies.
Nasdaq: MRNA) a biotechnology company pioneering messenger RNA (mRNA) therapeutics and vaccines today announced that the U.S. Healthcare workers have been on the front lines of the fight against the virus and are an inspiration to us all. 20, 2020 02:44 UTC. CAMBRIDGE, Mass.–( –( BUSINESS WIRE )– Moderna, Inc.,
Science (2024) Related content New gene delivery vehicle shows promise for human brain gene therapy My Quest to Cure Prion Disease — Before It’s Too Late | Sonia Vallabh | TED Prion diseases lead to rapid neurodegeneration and death and are caused by misshapen versions of the prion protein in the brain.
Cell and gene therapies (CGTs) have made significant advancements in treating oncological diseases, with therapies like CAR-T cell treatments transforming cancer care. However, cell-based therapies are intended to leverage those healthy cells via transplant to regenerate damaged tissue.
What are the key findings of Circio’s in vivo proof-of-concept for its circVec circular RNA platform technology compared to conventional mRNA-based expression with DNA vectors? Circular RNA (circRNA) has two major advantages versus mRNA in a vector-expression context.
Food and Drug Administration (FDA) has approved CABENUVA (consisting of Janssen’s rilpivirine and ViiV Healthcare’s cabotegravir), the first and only once-monthly, long-acting regimen for the treatment of human immunodeficiency virus type 1 (HIV-1) infection in adults. 50 c/mL, meeting noninferiority criteria.
There are a few approved therapies for DMD including four exon-skipping drugs and one AAV-microdystrophin drug, which uses a shortened version of dystrophin. Because mRNA is not a virus, it doesn’t have to meet biosafety requirements for manufacturing and administration that an AAV approach would need.
Using single-cell RNA sequencing to analyze gene expression in individual cells, the researchers have found how 86 major cytokines affect 17 immune cell types in mice. I hope our approach helps scientists make sense of any immune process, vaccine, disease, or therapy response, so that one can infer which cytokines are contributing to it.
Infectious agent includes bacteria, virus, fungi, and parasites, and they are capable of causing disease in a living organism. I had earlier proposed the use of Palmatine and Silver Nitrate in the efficacy against the RNA structure of the COVID-19 virus. We discovered it is highly effective and environmentally friendly.
5, 2020 — A pair of new gene therapies promise a potentially lasting cure for sickle cell disease by subtly altering the genetic information in patients’ bone marrow cells, researchers report. Both of the new gene therapy studies were published online Dec. SATURDAY, Dec. 5 in the New England Journal of Medicine.
Signal Transduction and Targeted Therapy. Basic Science A trailing ribosome speeds up RNA polymerase at the expense of transcript fidelity via force and allostery. Ribozyme-mediated RNA synthesis and replication in a model Hadean microenvironment. Assembly of metabolons in yeast using Cas6-mediated RNA scaffolding.
But what happens if you restore these cone cells, using gene therapy? A LEGO robot , made by undergraduate students at Arizona State University, pours sucrose gradients (a tube with dense liquid at the bottom, and less dense liquid at the top), which are used to separate, say, proteins from RNA by spinning them really fast in centrifuges.
But what happens if you restore these cone cells, using gene therapy? A LEGO robot , made by undergraduate students at Arizona State University, pours sucrose gradients (a tube with dense liquid at the bottom, and less dense liquid at the top), which are used to separate, say, proteins from RNA by spinning them really fast in centrifuges.
The COVID-19 pandemic has highlighted the urgent need for a novel, oral antiviral to treat this highly infectious and often deadly virus,” said Jean-Pierre Sommadossi, Ph.D., “Roche shares our passion for delivering innovative new medicines to address great unmet medical needs. Chief Executive Officer and Founder of Atea Pharmaceuticals.
Read A new DNA polymerase variant, called RT-KTq I614Y, can directly detect RNA modifications, including pseudouridine (Ψ) and queuosine (Q). By combining this new variant with standard sequencing methods, it’s possible to identify RNA modifications in a really simple way. Gene Therapy. Nucleic Acids Research.
In May 2019, the FDA granted Breakthrough Therapy Designation for the development of lenacapavir for the treatment of HIV-1 infection in heavily treatment-experienced patients with multi-drug resistance in combination with other antiretroviral drugs.
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