Immortality and eternal youth have been the stuff of myths and legends from ancient times on. Now, in the 21st century, real studies of current medicine could be applied to repair tissues and organs damaged by age. During the 11th Aging Research & Drug Discovery (ARDD) Meeting held at the University of Copenhagen at the end of August, scientists explained the molecular keys of rejuvenation, as many artists imagined in the past.

By looking at the electrical activity of tumor cells, rather than the neurons that innervate them, investigators at Baylor College of Medicine have added both basic and translational insights to the emerging field of cancer neuroscience. In their studies, which were published in Cancer Cell on Sept. 5, 2024, the researchers identified the cell of origin for IDH-mutated gliomas.

Aging is part of the life cycle and, although the effects are not manifest until after adulthood, it actually occurs from birth. The concept of senescence has traditionally been associated with aging. However, an embryo has senescent cells. In that case, what is aging, how can it be measured, and from what point in the life cycle?

Since the publication of The Hallmarks of Aging in 2013, aging research has exploded. The field now has more than 300,000 articles on the biological signals of the effect of time on the body. What would Marty McFly, the legendary character from the Back to the Future saga who traveled with his DeLorean time machine from the ‘80s to the ‘50s, think if he visited 2024 and saw laboratories experimenting with techniques to turn back the biological clocks of cells or increase the lifespan of rejuvenated mice?

Phagocytosis – eliminating millions of dead cells every day – requires specialized cells such as macrophages, the true professionals, which migrate to engulf waste and dying cells.

“There are hundreds of strains of bird flu, and most of them don’t infect humans, or even mammals,” Stephen Cusack told BioWorld. “There are two main reasons for that.” To be able to cause an infection, a virus “has to be able to get into the cell, and for that it needs a receptor,” Cusack said. For influenza viruses, those receptors are hemagglutinin receptors, and they differ in subtle but important ways between birds and mammals.

After decades of being woefully under-diagnosed and all but ignored by the biotech and pharma industry, recent advances in understanding its complex etiology could be opening the way to new treatments for endometriosis. Impetus is coming from (modest) increases in funding for basic research, such as the Biden administration’s $200 million for women’s health research and NIH grants under an ‘Advancing cures and therapies and ending endometriosis diagnostic delays’ call announced in March of this year.

Cross-talk between macrophages and tumor cells could modulate cachexia in pancreatic cancer patients. A group of scientists from the University of Oklahoma has discovered a new pathway that promoted muscle wasting after the recruitment of this immune cell in the tumor microenvironment, activating cachexia-inducing factors.

As with most common diseases of the developed world, aging is the major risk factor for developing cancer. Most of the half-dozen hallmarks of precancer that were published last week by investigators from Vanderbilt University and the Fred Hutchinson Cancer Research Center are also hallmarks of aging. Unfortunately, scientists reported at the American Association for Cancer Research’s (AACR) 2024 annual meeting this week that accelerated aging is increasing, and may be driving an increase in early-onset cancers.

At a recent meeting on “Research priorities for preventing and treating Alzheimer’s disease and related dementias” (ADRD), convened by the National Academies, one consensus priority on ADRD research was that there needs to be more of it at every stage. Several speakers presented stark numbers on the relative volume of research in cancer and neurodegeneration. Research output, measured in peer-reviewed papers, for dementia is estimated to be around 10,000 papers annually, compared to 150,000 for cancer, while AD clinical trials are also few and far between compared to cancer trials. This final installment of BioWorld’s series on Alzheimer’s explores some of the reasons for this discrepancy along with the latest advances and ongoing efforts to accelerate research and drug development in the field.