Category Biology/Biotechnology

‘Bad Fat’ Suppresses Killer T cells from Attacking Cancer

In order for cancer to grow and spread, it has to evade detection by our immune cells, particularly specialized “killer” T cells. Salk researchers led by Professor Susan Kaech have found that the environment inside tumors (the tumor microenvironment) contains an abundance of oxidized fat molecules, which, when ingested by the killer T cells, suppresses their ability to kill cancer cells. In a vicious cycle, those T cells, in need of energy, increase the level of a cellular fat transporter, CD36, that unfortunately saturates them with even more oxidized fat and further curtails their anti-tumor functions.

The discovery, published online in Immunity on June 7, 2021, suggests new pathways for safeguarding the immune system’s ability to fight cancer by reducing the oxidative lipid dama...

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Rapamycin changes the way our DNA is Stored

The anti-ageing compound rapamycin influences DNA winding.
© Hanna Salmonowicz, Monney Medical Media, 2021

Researchers discover an unexpected link between DNA winding and metabolism in the gut to ameliorate aging. Our genetic material is stored in our cells in a specific way to make the meter-long DNA molecule fit into the tiny cell nucleus of each body cell...

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Laughing Gas Relieves Symptoms in people with Treatment-Resistant Depression

Researchers at Washington University School of Medicine in St. Louis and the University of Chicago have found that a single, one-hour treatment that involves breathing in a mixture of oxygen and the anesthetic drug nitrous oxide — otherwise known as laughing gas — can significantly improve symptoms in people with treatment-resistant depression.

Single treatment provides patients with rapid, lasting antidepressant effects. A single, one-hour treatment that involves breathing in a mixture of oxygen and nitrous oxide — otherwise known as laughing gas — significantly improved symptoms in people with treatment-resistant depression, according to new data from researchers at Washington University School of Medicine in St. Louis and the University of Chicago.

In a phase 2 clinical trial...

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Microgel Coating gives Donor Cells a Boost in Reversing Pulmonary Fibrosis

Gel-coated (red) mesenchymal stromal cells (yellow) can degrade collagen (green) over a distance in the presence of tumor necrosis factor-alpha. (Image: Jae-Won Shin and Sing-Wan Wong/UIC)

Single cell encapsulation in gel can optimize cell-based therapy. Researchers at the University of Illinois Chicago have shown that even after lung tissue has been damaged, it may be possible to reverse fibrosis and promote tissue repair through treatment with microgel-coated mesenchymal stromal cells.

Pulmonary fibrosis is a chronic disease caused by environmental toxins, medications or medical conditions like pneumonia and rheumatoid arthritis...

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