Fat-derived IPS Cells Reversing Type 1 Diabetes; Flu Drug Strategy; US Ban on Chinese Car Tech with Brian Cox

Podcast snapshot

The Naked Scientists explore a groundbreaking diabetes therapy in which a patient’s own fat derived cells are reprogrammed into insulin producing cells and implanted to reverse type 1 diabetes, alongside a promising influenza treatment approach, a US ban on certain foreign car technologies, and an interview with Brian Cox about Solar System data. A listener asks if snails get dizzy, answered by a mollusc expert.

• Insulin production from fat derived IPS cells could reverse type 1 diabetes
• Dual action flu drug strategy labels infected cells for immune clearance
• US policy restricting foreign components in vehicles addresses data and security risks
• Brian Cox discusses new Solar System data and mission themes

Overview

The podcast delivers a slate of science stories, guided by hosts Rhys James and James Tytko, with expert insights and an interview with Brian Cox. The show begins with a breakthrough in type 1 diabetes treatment using a patient’s own cells reprogrammed into insulin producing cells, then moves to a novel influenza drug concept, followed by a policy discussion about security risks associated with Chinese and Russian technologies in modern vehicles. The broadcast closes with Brian Cox talking about the Solar System series and a listener question about snail dizziness.

Diabetes breakthrough: Fat derived IPS cells produce insulin

A woman with type 1 diabetes has begun producing her own insulin roughly three months after receiving a transplant of reprogrammed stem cells. The cells were derived from the patient’s fat, reprogrammed into insulin producing cells, and transplanted into the abdominal muscle layer. Within three months, the patient no longer required insulin and maintained normal glucose levels for about a year of follow up. Two other patients were reported to have received similar procedures. The work builds on IPS cell technology and parallels other research that uses blood derived stem cells, but fat derived cells showed strong results in this study.

The process relies on induced pluripotent stem cells (IPS cells) that are coaxed with chemical growth factors to become malleable and then directed toward insulin producing phenotypes. The reason for starting with fat is explained as an original approach versus blood derived stem cells, with variations in how the cells respond to the differentiation protocol. The patient’s autoimmune background is a key concern, yet the case notes that anti rejection drugs and prior liver transplant status may influence autoimmune activity. Risks include potential off target cell formation or unintended tissue growth, though detailed analyses in the study showed normal muscle tissue characteristics so far.

From the host perspective, this result is a potential new frontier for diabetes treatment, especially if the approach can be extended beyond liver based transplantation and autoimmune destruction. However, the complex balance of immune tolerance and autoimmune attack remains a central challenge for the field.

Influenza therapy: a targeted drug that flags infected cells for the immune system

The episode then covers a two ended molecule that blocks a neuraminidase enzyme used by influenza viruses to exit infected cells and spreads infection. After binding to neuraminidase, the molecule also carries an immune system beacon that marks the infected cells for destruction. In experimental mouse models, the approach resolved severe influenza infections effectively, suggesting a potent combination of antiviral activity and immune mediated clearance, thereby reducing tissue damage that is often caused by the immune response itself.

Experts caution that mice models do not always translate to humans, and more work is needed across different animal models and ultimately clinical trials. The strategy could offer broad protection against diverse influenza strains because it targets a host dependent process that viruses rely on to replicate, potentially enabling broad efficacy across flu variants. If successful, it would complement existing antiviral drugs and vaccines rather than replace them.

Security policy: US ban on certain technologies in vehicles

The podcast shifts to a security policy discussion with Oxford’s Kieran Martin explaining the US government’s move to ban components and software from China and Russia in vehicles. The concerns are twofold: software vulnerabilities that could enable vehicle manipulation and data security risks arising from connected cars collecting detailed movement and location data. The conversation emphasizes that while the data could offer safety and infrastructure benefits, properly securing software and handling data privacy is essential. The host questions whether a blanket ban could disrupt beneficial data collection while acknowledging that security is a legitimate priority. The discussion also draws parallels with 5G infrastructure debates and the broader issue of supply chain security.

Brian Cox Solar System: data driven cosmology

In the interview, Brian Cox discusses his new BBC2 series Solar System, emphasizing data from missions like Juno and recent observations of Jupiter’s moon IO. IO’s status as the most volcanically active body in the solar system is explained through tidal heating due to orbital resonance with Jupiter and the other Galilean moons. Cox explains that the series uses up to date data from 2024 to illustrate ongoing geological activity, linking it to broader questions about how heat sources drive planetary evolution. The interview also touches on Europa and Enceladus as intriguing targets for future missions in the search for life, and Cox explains the research logic behind focusing on geochemical and geophysical conditions that could support biology, such as proton gradients and energy sources in planetary crusts. The segment ends with a teaser about the Solar System program and information about its availability on BBC iPlayer.

Question of the Week: snail dizziness

The episode closes with a listener question about snail dizziness. An expert from the Natural History Museum explains that snails sense their position via statocysts containing statoliths that strike sensory hairs when the snail moves, providing information about orientation relative to gravity. This signaling is much less information rich than a vertebrate vestibular system, making it unlikely that snails experience dizziness in the same way humans do. The explanation reassures the caller about the snail on the car wheel and invites future questions.

Conclusion

The Naked Scientists wrap up with credits and promotion for the show’s sponsors and partners, and a reminder of the program’s Cambridge University roots and partnerships with Spitfire and IP engineering services. The program showcases a broad spectrum of science communication, from cutting edge regenerative medicine to planetary science and cybersecurity policy.