siRNA News and Research

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Small interfering RNA (siRNA), sometimes known as short interfering RNA or silencing RNA, is a class of double-stranded RNA molecules, 20-25 nucleotides in length, that play a variety of roles in biology. Most notably, siRNA is involved in the RNA interference (RNAi) pathway, where it interferes with the expression of a specific gene. In addition to their role in the RNAi pathway, siRNAs also act in RNAi-related pathways, e.g., as an antiviral mechanism or in shaping the chromatin structure of a genome; the complexity of these pathways is only now being elucidated.

RNA nanoparticles offer dual action against prostate tumors

Yang Zhang, PhD, and Jinjun Shi, PhD, both of the Center for Nanomedicine and Department of Anesthesiology, Perioperative and Pain Medicine at Brigham and Women's Hospital, are co-senior authors of a paper published in ACS Nanoscience Au, "Lipid Nanoparticle Delivery of mRNA and siRNA for Concurrent Restoration of Tumor Suppressor and Inhibition of Tumorigenic Driver in Prostate Cancer."

10 Jan 2025

Investigating the impact of CircRNAs on cancer progression and drug resistance

The researcher has given an overview on the regulatory network of extracellular circRNAs in cancer and their impact on cancer drug resistance.

6 Jan 2025

Complex interactions between nucleic acid sensors and enzymes in immune cells explained

Adenosine deaminase 2 (ADA2) has been identified as a regulator of toll-like receptor 9 (TLR9) activation in response to nucleic acids, according to a recent study.

26 Dec 2024

Unexpected discovery opens doors for improved siRNA therapies

In everyday life, when things turn out the opposite of what you expect, it's usually cause for frustration. In science, it's often the starting point for discovery.

20 Dec 2024

Kaempferol boosts immune tolerance and fights allergies

Kaempferol's role in Treg development is linked to Aldh1a2 activation in dendritic cells, highlighting its potential in suppressing inflammation and allergies.

19 Dec 2024

Ingestible capsule releases a burst of drugs directly into the walls of the GI tract

Inspired by the way that squids use jets to propel themselves through the ocean and shoot ink clouds, researchers from MIT and Novo Nordisk have developed an ingestible capsule that releases a burst of drugs directly into the wall of the stomach or other organs of the digestive tract.

21 Nov 2024

Squid-inspired technology could replace needles for medications and vaccines

The MiDe systems, inspired by squid propulsion, demonstrate effective needle-free drug delivery in the gastrointestinal tract, rivaling traditional methods.

20 Nov 2024

New nanoparticle system fights obesity

Researchers have unveiled a novel approach to tackle obesity by targeting fat absorption in the small intestine. The cutting-edge nanoparticle system, engineered to deliver therapeutic molecules directly to the digestive tract, has shown significant potential to prevent diet-induced obesity.

14 Oct 2024

Researchers uncover how senescent cells can both harm and heal in liver disease

Researchers developed novel genetic tools to trace, ablate, and manipulate p16^Ink4a+^ senescent cells, revealing their distinct roles in liver fibrosis and repair. Senescent macrophages promote fibrosis, while endothelial cells aid in tissue recovery.

7 Oct 2024

When CDK12/13 stalls, healthy prostate cells take a malignant turn

CDK12 is established as a tumor suppressor in prostate cancer, with its loss driving aggressive disease and creating vulnerabilities for targeted therapies.

7 Oct 2024

New chemical modification reduces off-target effects in siRNA drugs

Small interfering RNA (siRNA) drugs are a class of therapeutic agents that silence specific genes associated with inherited diseases.

9 Sep 2024

Exploring gene silencing mechanisms for improved RNAi therapeutics

RNA interference (RNAi) therapeutics have garnered significant attention in clinical research due to their potential for treating various diseases, including genetic disorders, viral infections and cancer.

20 Aug 2024

60 years in the making: Nanoparticles revolutionize nucleotide delivery

Researchers trace the 60-year evolution of lipid nanoparticles (LNPs) for nucleic acid delivery, highlighting their potential to revolutionize gene therapy with safer and more effective treatments.

10 Jul 2024

Agreement to explore Optimer vehicles for targeted delivery of siRNA

New collaboration will evaluate Aptamer’s fibrotic liver delivery vehicles with siRNA.

From Aptamer Group 9 Jul 2024

MPA-CF3: A marine-derived compound disrupting COPZ1 to combat EV-A71

This study is spearheaded by researcher Wu Zhong (National Engineering Research Center for the Emergence Drugs, Beijing Institute of Pharmacology and Toxicology, Beijing) and Prof. Yong Qin (West China School of Pharmacy, Sichuan University).

26 Jun 2024

Causal variant-targeted ribonucleic acid treatment for congenital melanocytic nevi

A genetic treatment targeting the causal NRAS c.181C>A mutation in congenital melanocytic naevus.

19 Jun 2024

RNA-based therapy shows promise in reducing cholesterol and triglycerides

A small interfering RNA (siRNA) investigational therapy that inhibits a gene involved in lipoprotein metabolism has been shown in a clinical trial led by Mount Sinai researchers to significantly reduce levels of different types of cholesterol and triglycerides in individuals with mixed hyperlipidemia, a condition in which fats build up in the blood.

29 May 2024

Young mouse plasma found to reverse aging in older mice

Researchers demonstrate that small extracellular vesicles (sEVs) from young mice plasma can reverse aging effects in older mice by enhancing mitochondrial function and energy metabolism.

22 Apr 2024

Adipose-derived stem cell exosomes play protective roles in mitigating myocardial injury

Announcing a new article publication for Cardiovascular Innovations and Applications journal. This study was aimed at investigating the expression and therapeutic potential of circRNAs from adipose-derived stem cell (ADSC) exosomes (ADSC-Exos) for cardiomyocyte injury.

7 Mar 2024

New model pinpoints drug interactions in the digestive tract

Any drug that is taken orally must pass through the lining of the digestive tract. Transporter proteins found on cells that line the GI tract help with this process, but for many drugs, it's unknown which of those transporters they use to exit the digestive tract.

20 Feb 2024