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Treatment strategies and innovation for recurrent highgrade glioma NeuroOncology

Recurrent high‑grade glioma (HGG)—including glioblastoma—remains lethal, with median survival of approximately 6–10 months after first progression, although patients with IDH mutant tumors often have better survival. Recent ASCO/SNO data and expanding trial data are reshaping available treatment strategies.

We review evidence for alkylators and anti‑angiogenic therapy; summarize targeted options for rare, actionable alterations; review immuno‑oncology combinations and cellular therapies; highlight DNA damage response (DDR)/radiosensitization strategies and discuss advances in blood–brain barrier modulation and locoregional delivery. We propose a patient‑centered algorithm that prioritizes trial enrollment, biomarker‑guided approaches, steroid stewardship, and quality of life.

Lomustine, temozolomide rechallenge, and bevacizumab remain commonly used but provide modest benefit. Targeted agents show meaningful activity only in select subsets (BRAF V600E, NTRK). DDR-directed agents such as ATM/ATR inhibitors show early promise. Immunotherapy advances center on rationale combinations, oncolytic viruses, and locoregionally delivered CAR-T/TCR platforms. Blood-Brain-Barrier (BBB) modulation strategies and adaptive trials are broadening access to innovative therapies. The 2025 landscape features meaningful, if incremental, options—alongside the first ever FDA‑approved therapy for H3K27M‑mutant diffuse midline glioma at relapse—and a pipeline of rational combinatorial approaches poised to refine outcomes for selected patients. This article concentrates on medical options and intentionally omits extended discussions of surgery and radiation beyond their integration with systemic therapies at recurrence.

Distal Vessel Occlusions in Acute Ischemic StrokeReframing Patient Selection and Reperfusion Strategies

Mechanical thrombectomy (MT) has revolutionized the treatment of acute ischemic stroke because of large vessel occlusion (LVO), but distal and medium vessel occlusions (DMVOs) remain a gray zone. DMVOs account for a substantial proportion of ischemic strokes and can cause long-term disability or death despite often presenting with only mild to moderate symptoms. Their biologic and anatomic diversity—including small vessel caliber, variable perfusion territories, collateral dependence, and complex access pathways—creates distinct patterns of natural history, treatment responsiveness, and procedural risk compared with proximal LVO.

New CRISPR method to control protein production in cells

The speed at which a cell produces proteins is a decisive factor in determining whether it divides, specializes, or retains its stem cell properties. A team of researchers has worked with international partners to demonstrate directly for the first time that the amount of ribosomal RNA (rRNA) directly regulates these processes. Their results have been published in the journal Science.

It has been established for some time that the amount of ribosomal RNA differs between different types of cells and is altered in the case of a number of diseases. But it remained unclear whether these specific characteristics are the cause or merely the result of biological processes.

With the newly developed CRISPR-based method TAPIR (Targeted Activation of Protein Translation), researchers now have access to a tool that can boost the activity of ribosomal genes and influence a cell’s protein production as a result. “Our new study shows that targeted activation of rRNA production significantly increases protein synthesis,” explains the lead author of the publication.

How the mouse brain learns from a single experience

Sometimes, even a single experience can be highly impactful, prompting humans and other animals to change their behavior or influencing their future choices. The formation of influential memories from a single, brief experience is also known as one-shot learning.

Researchers at Collège de France (CNRS/INSERM/Université PSL), Inria, Université Claude Bernard Lyon 1 and Brandeis University recently conducted a study investigating the neural underpinnings of one-shot learning in mice.

Their findings, published in Nature Neuroscience, suggest that one-shot learning is partly supported by endocannabinoid-mediated long-term potentiation (eCB-LTP), a lasting strengthening of communication at synapses, the junctions through which neurons exchange signals.

Three quantum phases in chromium-based material hint at a spin-triplet superconductor

Superconductors are materials that conduct electricity without electrical resistance when cooled below a specific critical temperature. These materials have proved promising for the development of various technologies, including medical imaging instruments, particle accelerators, ultrasensitive detectors and quantum processors.

Some superconductors are topological, which means their electronic states exhibit global patterns that remain unchanged under small disturbances. These materials can host Majorana bound states, localized quasiparticle excitations that could be leveraged to reduce errors made by quantum computers.

In recent years, some physicists have been trying to identify materials that could exhibit what is known as spin-triplet superconductivity. In this type of superconductivity, paired electrons have a combined spin of 1, as opposed to the spin of 0 observed in conventional superconductors.

Rare pulsar unleashes 114 giant pulses in a single hour

Astronomers have detected extreme, never-before-seen behavior from a rare kind of pulsar and stumbled on a surprising link to one of astronomy’s biggest current mysteries. Using 174 hours of radio observations, researchers detected PSR J1227-4853, a rapidly spinning neutron star known as a “transitional millisecond pulsar,” which unleashes hundreds of ultrashort, ultrapowerful “giant pulses.” Their paper was published in The Astrophysical Journal on July 31.

Neutron stars that rapidly rotate, completing one rotation in less than about 30 milliseconds, are called millisecond pulsars (MSPs). Among them is a rare class of neutron stars called transitional millisecond pulsars that swing between two different observational states: an accretion-powered state in a low-mass X-ray binary system and a radio-powered millisecond pulsar state. So far, only three transitional MSPs have been confirmed to exhibit this switching behavior.

In this study, Saptarshi Sarkar of the National Center for Radio Astrophysics in India and colleagues studied the third of these confirmed systems, PSR J1227−4853. Discovered in 2014 using the Giant Metrewave Radio Telescope (GMRT), it completes one rotation every 1.69 milliseconds.

Deep biosphere has endured mountain-building and erosion over hundreds of millions of years

A new study reveals that microbial life deep within Earth has persisted and repeatedly flourished through hundreds of millions of years of mountain-building and erosion. By analyzing minerals, fluids and gases from a 2.3-kilometer-deep (1.4-mile-deep) borehole in central Sweden, researchers have uncovered episodic bursts of methane-producing life linked to major geological events that shaped Scandinavia. The paper is published in the journal Communications Earth & Environment.

The deep continental subsurface is one of Earth’s least explored ecosystems. Yet it hosts microbial communities capable of ancient metabolisms such as methanogenesis—the production of methane by microorganisms. Now, an international research team led by scientists at Linnaeus University has reconstructed an unprecedented long-term history of these deep biosphere processes.

Stripped-down LSD reveals structural features linked to hallucinogenic and therapeutic effects

University of California, Davis, researchers have stripped down LSD to the base features responsible for its hallucinogenic and therapeutic effects.

In a study published in Proceedings of the National Academy of Sciences, the researchers whittled away at LSD’s core multiring structure and synthesized new, simplified versions to probe its functionality. The researchers developed several compounds with reduced hallucinogenic and cardiotoxic effects while identifying one compound that produced antipsychotic-like effects.

“By systematically deconstructing LSD, we have identified simplified cores that are better starting points for medicinal chemistry efforts,” said study corresponding author David E. Olson, director of the Institute for Psychedelics and Neurotherapeutics and a professor of chemistry and biochemistry and molecular medicine at UC Davis.

Slender crystal’s blue-to-yellow glow could make invisible forces visible

Applying pressure to luminescent organic crystals usually brings molecules closer together and weakens their fluorescence. Materials that instead brighten and undergo a large color change are rare, and clear design principles for achieving both responses in simple, rigid aromatic hydrocarbons have been lacking.

Researchers at the University of Osaka and collaborators have now found that crystals of a uniformly slender aromatic hydrocarbon become brighter under pressure while changing their fluorescence from light blue to yellow. Its emission-wavelength sensitivity was the highest reported for a molecular material to date.

The work is published in the Journal of Materials Chemistry C.

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