The first complete DNA methylation atlas of 39 human cell types reveals which genes can talk or are silenced, depending on whether their sequence is linked to methyl group epigenetic modification that regulates their expression. This map of on-and-off switches shows differences between the alleles inherited from the father and those from the mother, providing a view of gene expression that can be explored in health and disease independently of the information contained in the DNA sequence.

Multisystem inflammatory syndrome in children (MIS-C), a serious disorder that develops after SARS-CoV-2 infection, could arise from latent infection of another pathogen, the Epstein-Barr virus (EBV). Researchers at Charité – Universitätsmedizin Berlin and the German Rheumatology Research Center (DRFZ) have linked the inflammatory effect of this co-infection with transforming growth factor β (TGF-β), ruling out the possibility that MIS-C is caused by an autoimmune reaction, or persistence of the coronavirus in the body.

A combination of Epstein-Barr virus (EBV) antibodies and genetic factors may be linked to an increased risk of multiple sclerosis (MS), according to a study led by scientists at Karolinska Institutet and Stanford University. “The Epstein-Barr virus has been a suspect for many years for having a role in causing MS. The evidence for it has increased though one has not really reached complete proof of its role,” Tomas Olsson told BioWorld.

Researchers at the University of California San Diego have uncovered a key mechanism underlying the treatment resistance of melanoma with the BRAF V600E mutation through pathways involved in focal adhesion and extracellular matrix (ECM) remodeling. These two processes remodel the tumor cell environment in melanoma through the RAF/MEK cell signaling pathway. However, the combined use of FAK inhibitors with a RAF-MEK clamp overcame this resistance.

Multiple endogenous retroviruses (ERVs) in human DNA may be programmed to activate as cancer therapy. A recent study, led by scientists at the Dana-Farber Cancer Institute, expanded on a previously reported case of kidney cancer cure after hematopoietic stem cell transplantation attributed to the expression of an ERV driven by the hypoxia-inducible factor 2 (HIF2). The question was whether this finding might play out with different ERVs and different types of cancer through HIF.

The lung and thrombosis may play a key role in cancer and metastasis progression, according to a collaborative study led by Cornell University scientists.

A new version of Evo, the AI developed at the Arc Institute that can be used to design genomes as long as that of a bacterium, has been retrained with the DNA sequences of three domains of life – viruses, bacteria and eukaryotes.

The lung and thrombosis may play a key role in cancer and metastasis progression, according to a collaborative study led by Cornell University scientists. In the nonmetastatic lung microenvironment of several cancer types, the development of a prothrombosis niche promotes metastasis formation through the release of small extracellular vesicles loaded with an integrin protein.

Stimulating the body’s immune defenses against a tumor can reduce or eliminate it. However, in cancer immunotherapy, when immune checkpoint inhibitors unleash the immune system, severe autoimmunity can result. A hematological technique, extracorporeal photopheresis (ECP), could offer a solution. It reduces the therapy-induced inflammation without altering antitumor immunity. According to scientists at the Universities of Basel and Freiburg, the key lies in adiponectin, a hormone produced by fatty tissue.

Two simultaneous but independent studies published in Science identified, by introducing mutants into its genome, the essential and nonessential genes of Plasmodium knowlesi, one of the malaria parasites related to the dreaded Plasmodium vivax. Their results could help in the development and prioritization of antimalarial strategies.