A new mRNA and lipid nanoparticle (mRNA-LNP) platform could selectively reprogram in vivo cytotoxic effector T cells (Teff), the cells responsible for eliminating infected or tumor cells. To achieve this, scientists at the University of Pennsylvania conjugated LNPs with fractalkine, a molecule that binds to the CX3CR1 receptor, which is a marker of Teff cells. Using this strategy, the researchers delivered an mRNA encoding new proteins such as IL‑2 or human CD62 L‑selectin, opening the door to temporarily reprogramming these cells within the body, both in the blood and in lymphoid tissue, where they reside and become activated.

A new mRNA and lipid nanoparticle (mRNA-LNP) platform could selectively reprogram in vivo cytotoxic effector T cells (Teff), the cells responsible for eliminating infected or tumor cells. To achieve this, scientists at the University of Pennsylvania conjugated LNPs with fractalkine, a molecule that binds to the CX3CR1 receptor, which is a marker of Teff cells. Using this strategy, the researchers delivered an mRNA encoding new proteins such as IL‑2 or human CD62 L‑selectin, opening the door to temporarily reprogramming these cells within the body, both in the blood and in lymphoid tissue, where they reside and become activated.

Raising $279 million in an IPO and another $25 million in a concurrent private placement, Odyssey Therapeutics Inc. is advancing its lead phase II asset, OD-001, in ulcerative colitis, with plans to bring its SLC15A4 program into the clinic for lupus.

Climb Bio Inc. outlined May 5 an enticing data spill ahead this year with Fc-enhanced monoclonal antibody budoprutug (budo) in autoimmune diseases. Mizuho analyst Joseph Catanzaro appreciated in his report Wellesley Hills, Mass.-based Climb’s “conviction that CD19 represents a best-in-class pan-B-cell depletion target across antibody-mediated autoimmune diseases – a relative white space for conventional mAbs.”

Conventional mouse models are not susceptible to hepatitis A virus (HAV) because murine adaptor protein MAVS is not efficiently cleaved by HAV protease precursors, so intact type I interferon (IFN) signaling blocks productive infection. However, IFN receptor knockout (KO) mice are susceptible to HAV infection and show hallmark features of the infection, having recently been identified as a potential disease model. Researchers from Genematrix Inc. aimed to determine whether nonclinical efficacy studies can be performed in small animal models.

Parcelbio has raised $13 million in seed financing to continue its development of a new class of potent and durable mRNA medicines. The financing will support development of Parcelbio’s proprietary APEXm (Amplified and Prolonged EXpression mRNA) platform and advance its pipeline, including its lead in vivo CAR T program for autoimmune disease.

Scientists at the La Jolla Institute for Immunology have identified and characterized human antibodies that neutralize the measles virus by blocking its entry into the cell. This is the first time that antibodies have been shown to bind effectively to two essential viral proteins, creating a dual blockade that prevents infection. Unlike the current vaccine, which is based on an attenuated virus and is not recommended for immunocompromised individuals, these monoclonal antibodies could be used both as a new vaccine approach and as a treatment for the entire population.

UCB SA agreed to pay $2 billion up front to acquire bispecific T-cell engager (TCE)-maker Candid Therapeutics Inc. and lead BCMA/CD3 TCE asset cizutamig (CND-106), continuing big pharma’s spree for China-made autoimmune assets in 2026.