Cancer cells expand through mutations – but not just through mutations. They also change their behavior in the absence of underlying genetic alterations. Such plasticity helps the cells both adapt to the cellular stress fueled by out-of-control growth and resist targeted and chemotherapies alike. Investigators from Memorial Sloan Kettering Cancer Center and Huazhong Agricultural University have gained new insights into the underlying mechanisms of plasticity.

Cancer cells expand through mutations – but not just through mutations. They also change their behavior in the absence of underlying genetic alterations. Such plasticity helps the cells both adapt to the cellular stress fueled by out-of-control growth and resist targeted and chemotherapies alike. Investigators from Memorial Sloan Kettering Cancer Center and Huazhong Agricultural University have gained new insights into the underlying mechanisms of plasticity.

A new method, based on gene editing with oligonucleotides and functional analyses, identifies which variants of DNA repair genes associated with Lynch syndrome are truly harmful and which are not. Scientists at The Netherlands Cancer Institute have developed this technique and classified these gene variants in both coding and noncoding regions, distinguishing those that are pathogenic from those that are benign.

The sea anemone Stichodactyla helianthus, which carpets the Caribbean seafloor, may hold the key to eliminating the senescent cells that survive cancer therapy. A collaboration led by Spanish scientists across several international research centers has discovered a new type of toxin that selectively eliminates senescent cancer cells.

The range of effects caused by rhinoviruses – the pathogens responsible for the common cold – motivated scientists at Yale University to study the human nasal epithelium and uncover a previously undescribed defense mechanism. The interferon-mediated protective response in these cells can limit infection, whereas a maladaptive response tends to worsen it. Based on these findings, the researchers have identified potential therapeutic targets to reduce inflammation associated with rhinovirus infection.

A new systematic review and meta-analysis of studies looking at a possible association between Tylenol (acetaminophen) use in pregnancy and neurodevelopmental disorders in children concludes there is no evidence of any meaningful risk. The study was carried out by researchers in the U.K., Italy, Sweden and Norway, in response to U.S. Secretary of Health and Human Services Robert Kennedy saying last September that there is a link. Unless medically necessary, it is “irresponsible” to take Tylenol during pregnancy, Kennedy said.

Once it was considered to be more or less a passive energy-storing device that could double as a cushion. But increasingly, fat is conceptualized as an endocrine organ as much as a tissue type. Now, separate research groups have reported new insights into the functional roles of different fats based on their anatomical location and functional characteristics.

For decades, scientists have searched for a mechanistic link between viral infection and multiple sclerosis (MS). Insights from three studies recently published in Cell bring that connection into sharper focus. By tracing how the immune system responds to Epstein-Barr virus (EBV) – and how those responses can misfire against the brain – researchers are beginning to uncover a compelling biological explanation for MS.

The sea anemone Stichodactyla helianthus, which carpets the Caribbean seafloor, may hold the key to eliminating the senescent cells that survive cancer therapy. A collaboration led by Spanish scientists across several international research centers has discovered a new type of toxin that selectively eliminates senescent cancer cells.

Depending on who you ask, AI will take over the world and save it; or ruin it. Certainly, it is changing it. Science magazine dedicated its first editorial of 2026 to AI. Despite its title – “Resisting AI slop“ – editor-in-chief Holden Thorp gave the sort of nuanced review that is typical of him. “Like many tools, AI will allow the scientific community to do more if it picks the right ways to use it,” he wrote. “The community needs to be careful and not be swept up by the hype surrounding every AI product.”