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‘Off the shelf’ immunotherapy could get a lift from gene-edited natural killer cells

Since scientists first discovered that human immune cells could be modified to become cancer-fighting agents, they’ve been trying to engineer a cell that’s effective against solid tumors, which account for the vast majority of cancer cases. In a key advance in meeting this “holy grail challenge” in the field of cancer cell therapy, a team of Yale scientists led by geneticist Sidi Chen has revealed how immune cells can be “boosted” to target and eradicate solid tumors.

The field of cell therapy began to revolutionize cancer treatment several decades ago, when researchers pioneered the use of therapeutic cells. In this process, immune cells are removed from a patient, modified so that they can better fight cancer, and then reintroduced into the patient’s body.

Two major streams of this therapy exist: CAR-NK cell therapy, which uses a patient’s natural killer (NK) cells, and CAR-T cell therapy, which uses a patient’s T cells. In both cases, scientists genetically modify the cells to express Chimeric Antigen Receptor (CAR), a synthetic receptor that helps immune cells recognize proteins on cancer cells.

Fermi Paradox: Why Haven’t Aliens Colonized Earth?

A exploration of the question of with Earth being 4.6 billion years old, then why wasn’t earth colonized by an alien civilization?

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New Solution to the Fermi Paradox Found. Scientists Hope They’re Wrong

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Some call it The Great Silence, others The Fermi Paradox.

For the last 60 years, we’ve had our eyes and ears glued to the cosmos looking and listening for some sign letting us know we’re not all alone in the galaxy. And the more we discover, the harder it is to believe we’re the only ones.

Think about this for a moment; there’s around 2 trillion [2,000,000,000,000 galaxies] galaxies in the observable universe. Each one of those galaxies have on average 100 million stars. Some supergiants have one hundred trillion stars, and our Milky Way Galaxy has between 100 to 400 billion stars alone. It is likely that there’s at least this many planets floating around all those stars, and complex planetary systems that may resemble our own Solar System.

It brings us to the big question: where is everyone, and why haven’t we been contacted by an extra-terrestrial civilization from even inside our own galaxy? There should be many advanced civilizations out there, and we should have heard something from someone by now.

There are quite a few possible explanations for the ‘Great Silence’, and some researchers think they may have found some answers to this so-called paradox.

5 Fermi Paradox Explanations I Love, 7 That Fall Flat

The Fermi Paradox asks why, in a vast and ancient universe, we see no signs of alien life. In this episode, we explore five explanations that make sense—and seven popular ones that, despite sounding good, fall flat under closer scrutiny.

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Credits:
5 Fermi Paradox Explanations I Love, 7 That Fall Flat.
Episode 502 / 721; May 31, 2025
Written, Produced & Narrated by: Isaac Arthur.
Graphics: Ken York YD Visual.
Select imagery/video supplied by Getty Images.
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator.

0:00 Intro.
1:11 Space Is Too Big.
4:46 Rare Earth.
6:35 Aliens Signals Just Can’t Be Heard.
10:09 Humans Are Boring.
11:36 Dark Forest Theory.
14:14 Interdiction Bubble Civilizations.
16:49 Hermit Hypothesis.
19:18 Aestivation Hypothesis and Extragalactic Migration.
21:10 Transcendance, Ascension, and Extra-Universe Migration.
22:33 Infinite Miniaturization.
23:33 Berserkers & Zombie AI
24:53 Aliens Common But Unrecognizable.
26:08 Simulation Hypothesis

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