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Dec 18, 2024

Scientists Crack Cancer’s Hidden Defense With a Breakthrough Protein Discovery

Posted by in categories: biotech/medical, innovation

Scientists have discovered a key protein that helps cancer cells avoid detection by the immune system during a type of advanced therapy.

By creating a new drug that blocks this protein, researchers hope to make cancer treatments more effective, especially for hard-to-treat blood cancers. This breakthrough could lead to better survival rates and fewer relapses for patients.

Scientists at City of Hope, one of the leading cancer research and treatment centers in the U.S., have uncovered a key factor that allows cancer cells to evade CAR T cell therapy.

Dec 18, 2024

OpenAI makes ChatGPT available for phone calls and texts

Posted by in category: robotics/AI

OpenAI is giving users a new way to talk to its viral chatbot: 1–800-CHATGPT.

By dialing the U.S. number (1−800−242−8478) or messaging it via WhatsApp, users can access an “easy, convenient, and low-cost way to try it out through familiar channels,” OpenAI said Wednesday. At first, the company said callers will get 15 minutes free per month.

The news follows a barrage of updates from OpenAI as part of a 12-day release event. The most notable announcement was the official rollout of Sora, OpenAI’s buzzy AI video-generation tool.

Dec 18, 2024

Giant virus encodes key piece of protein-making machinery of cellular life

Posted by in categories: biotech/medical, genetics

Researchers at the University of Hawai’i at Mānoa have discovered that a virus, FloV-SA2, encodes one of the proteins needed to make ribosomes, the central engines in all cells that translate genetic information into proteins, the building blocks of life. This is the first eukaryotic virus (a virus that infects eukaryotes, such as plants, animals, fungi) found to encode such a protein.

The research is published in the journal npj Viruses.

Viruses are packets of genetic material surrounded by a protein coating. They replicate by getting inside of a cell where they take over the cell’s replication machinery and direct it to make more viruses. Simple viruses depend almost exclusively on material and machinery provided by the , but larger, more complex viruses code for numerous proteins to aid in their own replication.

Dec 18, 2024

Glycomimetic peptides as powerful anti-inflammatory treatments

Posted by in category: futurism

Exploring the potential of glycomimetic peptides as powerful anti-inflammatory therapeutic treatments.

Dec 18, 2024

AI Approach Builds Genomenon’s Database of Clinically Relevant Genomic Data

Posted by in categories: biotech/medical, robotics/AI

As the amount of genomic data grows, so too does the challenge of organizing it into a usable database. Indeed, the lack of a searchable database of genomic information from the literature has posed a challenge to the research community. Now, Genomenon’s AI-based approach—the Genomenon Genomic Graph (G3) knowledgebase—combines patient and biological data from nearly all published scientific and medical studies, including demographics, clinical characteristics, phenotypes, treatments, outcomes, and disease-associated genes and variants.

Training of the underlying large language model for G3 uses Genomenon’s proprietary, curated genomic datasets. The knowledgebase will power AI-driven predictive models for clinical diagnostics and drug development applications.

The Ann Arbor, MI, based Genomenon—a provider of genomic intelligence solutions—notes that this advancement represents the first time that content from the entire corpus of clinically relevant literature will be captured in a single, searchable knowledgebase.

Dec 18, 2024

Spiderweb protocluster captured by Webb shows supermassive black holes can halt star formation

Posted by in categories: cosmology, evolution

An international research team has used the James Webb Space Telescope (JWST) to observe massive galaxies discovered by the Subaru Telescope in a corner of the early universe known as the Spiderweb protocluster. The JWST results confirm what had been suggested from the Subaru Telescope observations, namely that supermassive black hole activity can truncate the growth of galaxies.

These results appear in the paper “Spider-Webb: JWST Near Infrared Camera resolved galaxy and nuclear activities in the Spiderweb protocluster at z=2.16” in Monthly Notices of the Royal Astronomical Society on December 18, 2024.

The growth and evolution of galaxies is a major theme in modern astronomy. The origin of giant elliptical galaxies is one riddle. These galaxies consist entirely of old stars, so something early in their evolution must have shut off star formation in the progenitors of giant elliptical galaxies. According to one theory, the at the hearts of the galaxies may play a role in determining the star formation.

Dec 18, 2024

CAR T-Based Therapies in Lymphoma: A Review of Current Practice and Perspectives

Posted by in category: biotech/medical

📝 — Sheikh, et al.

In this paper, the authors summarize the current practice and the latest progress of CD19 auto-CAR T cell therapy and the management of specific toxicities and discuss the place of allogeneic CAR T development in this setting.

Full text is available 👇

Continue reading “CAR T-Based Therapies in Lymphoma: A Review of Current Practice and Perspectives” »

Dec 18, 2024

Black holes keep ‘burping up’ stars they destroyed years earlier, and astronomers don’t know why

Posted by in categories: cosmology, materials

A recent study has revealed that nearly half of black holes that consume stars during tidal disruption events (TDEs) later emit remnants of those stars, sometimes years after the initial event. TDEs occur when a star ventures too close to a black hole, where the black hole’s gravitational pull exerts intense tidal forces. This results in the star being stretched and compressed, a process known as spaghettification, which tears the star apart within hours. This destruction is marked by a burst of electromagnetic radiation visible as a bright flash.

As the star is consumed, part of its material is expelled, while the remaining material forms an accretion disk—a thin, rotating structure around the black hole. The accretion disk initially releases material in chaotic bursts, detectable through radio waves, but these emissions typically fade within a few months. Traditionally, astronomers only observed these radio emissions for a short period after the star’s destruction, missing any longer-term activity.

The new study, led by Yvette Cendes, a research associate at the Harvard and Smithsonian Center for Astrophysics, involved monitoring black holes for several years after TDEs. Published on Aug. 25 in the preprint database arXiv, the findings showed that in up to 50% of the cases, black holes expelled material years after consuming a star. In 10 of the 24 studied black holes, this delayed emission occurred between two and six years after the initial star-destroying event. These unexpected “burps” were observed as sudden bursts of radio waves, indicating that the black holes “turned on” again long after the initial event.

Dec 18, 2024

Human Minibrains Launched Into Space Thrived in an Unexpected Way

Posted by in category: space

Human minibrains in little vials surprised scientists by surviving a stint in low-Earth orbit.

US researchers sent lab-grown blobs of human neural tissue known as organoids for a short holiday on the International Space Station back in 2019. What they got back a month later amazed them.

Continue reading “Human Minibrains Launched Into Space Thrived in an Unexpected Way” »

Dec 18, 2024

The Human Brain Operates at a Stunningly Slow Pace

Posted by in categories: computing, Elon Musk, internet, neuroscience

The brain is sometimes called the most complex machine in the known universe. But the thoughts that it outputs putter along at a trifling 10 bits per second, the pace of a conversation.

By Rachel Nuwer

Continue reading “The Human Brain Operates at a Stunningly Slow Pace” »

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