February 2025

Major depressive disorder (MDD) is a debilitating illness that 5-17% of us will experience during our lifetime. Identifying underlying biological mechanisms in MDD could increase our understanding of this disorder; allowing early-stage diagnosis and the development of new treatments. Extracellular vesicles (EVs), nano-sized, lipid-bound derivatives of cells that contain a plethora of cargo, such as miRNAs, lipids, and other proteins, offer a new avenue in this research.

In our immune system's fight against cancer, autologous immune cell therapy using CAR-T cells has transformed treatment options for patients with leukaemia and lymphoma but is not effective against solid tumors. Could monocytes and their derivatives, notably macrophages, succeed where CAR-T cells have failed? Here we look at the way cancers try to exert dominance over macrophages and the companies rising to the challenge of autologous macrophage therapy.

When we think about the building blocks of life, our minds often jump to cells, DNA, and proteins. However, lurking in the spaces between cells is an equally crucial component that often goes unnoticed: the extracellular matrix (ECM). This unsung hero plays a pivotal role in maintaining the structure and function of tissues, influencing everything from wound healing to cancer progression.

Calorie restriction (CR) has long been recognized to increase both health span (the duration of a healthy life) and lifespan, but is difficult to adhere to. Recently published papers indicate that a dietary supplement (also produced by some gut microbes) can achieve the same effect.