Two independent groups of researchers have achieved HIV latency reversal not just in T cells in the bloodstream, but also in tissues, in animal models of HIV infection. Latently infected cells, which have nonreplicating HIV integrated into their genomes, are a major barrier to curing HIV, and attempts to reactivate latently infected cells, which would sensitize the virus in them to antiretroviral treatment, are one major area of HIV cure research.

Remember how Ras is a frequently mutated oncogene in solid tumors? Well, it turns out Ras plays a role in those memories, too. In the Jan. 13, 2020, online issue of the Proceedings of the National Academy of Sciences, scientists at the Scripps Research Institute in Juniper, Fla., reported on the discovery that Ras signals through Raf and then Rho kinase to control whether memory is short- or long-term.

Remember how Ras is a frequently mutated oncogene in solid tumors? Well, it turns out Ras plays a role in those memories, too. In the Jan. 13, 2020, online issue of the Proceedings of the National Academy of Sciences, scientists at the Scripps Research Institute in Juniper, Fla., reported on the discovery that Ras signals through Raf and then Rho kinase to control whether memory is short or long-term.

Scientists at the Whitehead Institute have discovered that the ability of the parasite Toxoplasma gondii to cause chronic infections depends on changes orchestrated by a single transcription factor, Bradyzoite-formation deficient 1 (BFD1).