Lifeboat Foundation

Researchers at Columbia University have developed a probiotic-guided chimeric antigen receptor (CAR)-T platform that uses engineered bacteria to infiltrate and produce synthetic antigen targets, enabling CAR-T cells to find, identify, and destroy tumor cells in situ. The results of in vivo preclinical tests suggest that the combined ProCAR cell therapy platform could expand the scope of CAR-T cell therapy to include difficult-to-target solid tumors.

Tal Danino, PhD, and Rosa L. Vincent, PhD, at Columbia University’s department of biomedical engineering, and colleagues, reported on their developments in Science, in a paper titled “Probiotic-guided CAR-T cells for solid tumor targeting,” in which they concluded, “These findings highlight the potential of the ProCAR platform to address the roadblock of identifying suitable CAR targets by providing an antigen that is orthogonal to both healthy tissue and tumor genetics … Overall, combining the advantages of tumor-homing bacteria and CAR-T cells provides a new strategy for tumor recognition and, in turn, builds the foundation for engineered communities of living therapies.”

Immunotherapies using CAR-T cells have proven successful in treating some types of blood cancers, but their efficacy against solid tumors remains elusive. A key challenge facing tumor-antigen targeting immunotherapies like CAR-T is the identification of suitable targets that are specifically and uniformly expressed on solid tumors, the authors noted. “A key challenge of antigen-targeted cell therapies relates to the expression patterns of the antigen itself, which makes the identification of optimal targets for solid tumor cell therapies an obstacle for the development of new CARs.” Solid tumors express heterogeneous and nonspecific antigens and are poorly infiltrated by T cells. As a result, the approach carries a high risk of fatal on-target, off-tumor toxicity, wherein CAR-T cells attack the targeted antigen on healthy vital tissues with potentially fatal effects.

In a recent study led by Ravi Salgia, M.D., Ph.D., the Arthur & Rosalie Kaplan Chair in Medical Oncology, a team of researchers from City of Hope, one of the largest cancer research and treatment organizations in the United States, and other institutions found that nongenetic mechanisms are important in lung cancer patients who develop a resistance to one cancer therapy. Their findings were published in the October 13 issue of the journal Science Advances.

The team’s study explored resistance to the anti-cancer medication sotorasib in patients with non-small cell lung cancer (NSCLC). Sotorasib inhibits a specific mutation of a protein, KRAS G12C, that causes unchecked cell growth.

The researchers’ findings suggest that, initially, most tumor cells are sensitive to sotorasib. But some cells can become tolerant to therapeutic treatment without resorting to genetic mutations or alterations by manipulating the KRAS-sotorasib interaction network. Furthermore, they found that if sotorasib treatment is withheld, the tumor cells revert to becoming sensitive again, implying that the phenomenon is reversible and thus is driven by nongenetic mechanisms.

Researchers at Tokyo Tech have demonstrated that in-cell engineering is an effective method for creating functional protein crystals with promising catalytic properties. By harnessing genetically altered bacteria as a green synthesis platform, the researchers produced hybrid solid catalysts for artificial photosynthesis.

Photosynthesis is how plants and some microorganisms use sunlight to synthesize carbohydrates from carbon dioxide and water.

According to this information covid 19 sars is a chimeric virus that evolves with other genetic material which gives us clues for a proper antidote. Also it shows why it is so dangerous.

Ben Hu denies he was sick in late 2019, or that his coronavirus work led to COVID-19, and newly declassified U.S. intelligence doesn’t substantiate allegations against him.

I dont really care where it comes from but we need Crispr tec to be where any alteration we do want causes Zero un intended alterations any where else 100% of the time, aim for by 2030–2035 window.

A diverse set of species, from snails to algae to amoebas, make programmable DNA-cutting enzymes called Fanzors—and a new study from scientists at MIT’s McGovern Institute for Brain Research has identified thousands of them. Fanzors are RNA-guided enzymes that can be programmed to cut DNA at specific sites, much like the bacterial enzymes that power the widely used gene-editing system known as CRISPR. The newly recognized diversity of natural Fanzor enzymes, reported Sept. 27 in the journal Science Advances, gives scientists an extensive set of programmable enzymes that might be adapted into new tools for research or medicine.

“RNA-guided biology is what lets you make programmable tools that are really easy to use. So the more we can find, the better,” says McGovern Fellow Omar Abudayyeh, who led the research with McGovern Fellow Jonathan Gootenberg.

Continue reading “Thousands of programmable DNA-cutters found in algae, snails, and other organisms” »

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Hello and welcome! My name is Anton and in this video, we will talk about an invention of a DNA bio computer.
Links:
https://www.nature.com/articles/s41586-023-06484-9
https://www.washington.edu/news/2016/04/07/uw-team-stores-di…perfectly/
Other videos:
https://youtu.be/x3jiY8rZAZs.
https://youtu.be/JGWbVENukKc.

#dna #biocomputer #genetics.

Continue reading “So…Biocomputers Made Out of DNA Circuits May Be a Thing Now” »

A key genetic mutation—harmful in humans—may have opened the sky to bats.

An Australian first biobank will be established to improve and discover new treatments for children with genetic muscle diseases.

The National Muscle Disease Bio-databank, co-led by Murdoch Children’s Research Institute, Monash University and The Alfred, will advance research into our understanding of why children develop genetic muscle diseases.

These diseases, spanning dystrophies and myopathies, are characterised by severe muscle weakness, usually from infancy, that can impact swallowing, breathing and lead to eye problems and learning difficulties.

Continue reading “Biobank aims to discover new treatments for children with genetic muscle diseases” »

When it comes to human longevity, you might envision nanobots helping our bodies operate more efficiently. But our bodies are biological machines in their own right, evolved to handle any situation in the real world from illness to cold to hunger. Our bodies heal themselves, and they can be programmed to do so if we understood that language better.

This video talks about DNA and genes, and the epigenetic mechanisms that read that information. The epigenetic clock is one way to measure the age of cells, and this can be reversed with current technologies. We discuss experiments by David Sinclair, which made blind mice see again, and experiments by Greg Fahy, which regenerated the immune system of humans and reset their cellular age by 2 years.

Continue reading “Unlocking immortality: the science of reversing aging” »