Lifeboat Foundation: Safeguarding Humanity
Toggle light / dark theme

Blog

Category: biotech/medical

Immune cell lncRNAs reprogram the tumor microenvironment

Long noncoding RNAs (lncRNAs) regulate the tumor microenvironment (TME), yet their cell-intrinsic roles within immune populations of the TME remain underappreciated. In this review, we shift focus from the cancer cell to the immune compartment, systematically reviewing how immune cell-intrinsic lncRNAs govern CD8+ T cell exhaustion, CD4+ T cell polarization, NK cell cytotoxicity, dendritic cell antigen presentation, and macrophage inflammatory programming. We highlight lncRNAs that function as molecular switches—tipping immune cells between antitumor effector and immunosuppressive states—and examine how exosomal lncRNAs extend these regulatory circuits across cellular boundaries within the TME.

Ultimate Limit of The Human Lifespan May Be Identified, Study Suggests

When the iconic rock band Queen asked, “Who wants to live forever?” the question was rhetorical, but for many people, the answer was “Yes”

Well, a new study suggests immortal life may be scientifically impossible, even if we somehow found the perfect anti-aging medicine.

If scientists managed to overcome every other aspect of aging, humans still couldn’t live forever, the new research shows. Random DNA mutations would continue accumulating in our cells until the body could no longer function.

Soft exosuit shows motor-free path to wearable walking assistance

Researchers in China have unveiled a new robotic exosuit driven entirely by soft artificial muscles instead of traditional motors. This technology could make it easier for older adults, injured patients or factory workers to walk with much less effort. Current exosuits that aid walking use heavy motors, gearboxes and noisy air-pressure pumps that restrict a person’s natural movement.

Soft muscles, on the other hand, are made of thin, flexible rubber fibers that behave more like human muscles and are considerably lighter, making it easier for people to move.

Details of the work are in a paper published in the journal Science Advances.

MHRA Warns of Botulism Risk After Botulinum Toxin Use

The MHRA’s latest alert warned about the dangers of unlicensed and counterfeit botulinum toxin products. “We also strongly urge the public to avoid unlicensed products and seek treatment only from appropriately qualified practitioners,” Cave said.

The agency said that products obtained outside regulated supply chains “do not meet UK safety and quality standards and can significantly increase the risk of serious side effects”. The agency also said that anyone considering treatment should ensure their practitioner is appropriately qualified, and confirm that the product being used is authorised for UK use.

The MHRA said it had worked with manufacturers to update product information, including patient leaflets, so that the risk of iatrogenic botulism is more clearly highlighted. It urged the public to report suspected side effects through the MHRA’s Yellow Card scheme.

Tiny memristor chip cuts brain modeling time to under 10 milliseconds

A research team has developed the world’s first chip that can match the speed at which the human brain functions. The study, titled “A sub–10-millisecond neural dynamical system based on phase-change memristors,” was published in Science and was led by Professor Yang Yuchao of Peking University, together with researchers from the Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences.

Neural dynamical systems combine neural networks with mathematical equations that describe how complex systems change over time. They are useful for physical modeling, medical imaging and three-dimensional brain reconstruction. However, these systems require repeated calculations, error checks and adjustments to the size of each calculation step. In conventional computers, data must also move frequently between memory and the processor, increasing processing time and energy use.

Fast and accurate brain modeling is important for technologies that must respond in real time, including brain–computer interfaces, surgical navigation and medical imaging. Existing hardware often requires too much time and power for these demanding calculations. By performing key operations directly in memory, the new chip reduces data movement and brings high-quality brain modeling closer to real-time use.

Apatinib Causes Hypertension via Drp1Mediated Endothelial Mitochondrial Fission

BACKGROUND: Apatinib is a tyrosine kinase inhibitor used for targeted cancer therapy, but its cardiovascular toxicity, particularly hypertension, limits its clinical application. We observed significant mitochondrial fragmentation in endothelial cells after apatinib treatment. This study aims to investigate the role of endothelial mitochondrial fission mediated by Drp1 (dynamin-related protein 1) in apatinib-induced hypertension. METHODS: We established an apatinib-targeted gastric cancer–bearing nude mice model. Apatinib was also administered to human umbilical vein endothelial cells in vitro. Mitochondrial morphology changes in endothelial cells were examined. The role of Drp1 in this process was validated using various experimental methods.

/* */