Scientists have discovered a small molecule that bypasses ADAR1 suppression and directly activates tumor cell death by ZBP1, inducing highly immunogenic cell death and destroying fibroblasts supporting tumor growth. This approach has the potential to improve the effectiveness of immunotherapy in treating therapy-resistant tumors.
Flipon genetics proposes that evolution happens on a faster time scale than Darwin imagined, with rapid adaptations occurring in real-time within individuals. This is achieved through the simple sequence repeats of DNA, which can adopt alternative shapes and transmit adaptations to offspring.
A Z-RNA nanoswitch that switches from a right-handed A-RNA state to a left-handed Z-RNA state regulates immune responses against self RNAs. The switch is encoded by 'junk DNA' and protects normal cells from inflammatory diseases, while malfunctioning causes diseases like Aicardi-Goutieres disease.
Tumor cells produce excess complement protein iC3b to mask abnormal proteins, evading immune cell attack. The immune system relies on a flexible receptor CR3 to distinguish between 'I belong' and 'I don't belong' tags.
Researchers propose using repetitive DNA sequences, known as flipons, to create logic circuits and perform calculations. These sequences can form different DNA structures, enabling the creation of genetic programs that can be used to overcome environmental challenges.
The study focuses on flipons, DNA sequences that act as on-off switches to change genetic information. Flipons enable the compilation of multiple messages from a single genomic sequence, generating more diversity than mutation or DNA rearrangements.
Flipons are sequences that alter DNA conformation, enabling cells to dynamically modify gene expression. This adaptable coding allows cells to change their response to environmental stressors, such as oxidative stress, which promotes Z-DNA flipon formation.
A new study published in European Journal of Human Genetics reveals that the left-handed Z-DNA conformation plays a key role in regulating type I interferon responses, which are involved in fighting viruses and cancer. The study analyzes families with variants in the ADAR gene and confirms a biological function for the left-handed conf...
Researchers have identified a key enzyme that helps cancer cells survive by eliminating junk RNA. Targeting this enzyme, ADAR, may lead to breakthroughs in treating various types of cancer.