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Scientists unmask immune cells that supercharge the fight against cancer

A little‑known group of hard-to-find immune cells could help transform cancer treatment, scientists at the University of Manchester’s Cancer Research UK Manchester Institute, have found.
Their discovery, published in Immunity, centres on activated dendritic cells, a specialised population of immune cells that orchestrate the body’s attack on cancer.
To make the discovery, the researchers developed the first mouse models capable of specifically labelling or removing activated dendritic cells. This allowed them to determine exactly how activated dendritic cells contribute to anti-cancer immunity. The models are expected to accelerate research into activated dendritic cells across cancer, infections and autoimmune diseases.
Until now, scientists have struggled to understand precisely how activated dendritic cells contribute to anti-cancer immunity because suitable models did not exist. Using the new models, the team showed that activated dendritic cells are indispensable for effective anti-cancer immune responses. Without them, cancer-killing T cells could neither be efficiently activated nor maintain their strength once inside tumours. As a result, both spontaneous immune control of cancer and the efficacy of immunotherapy were impaired.
Study details
First author Dr Maria Koufaki said: “Modern immunotherapies rely on strong and coordinated immune responses, yet many people still do not benefit from these treatments. If we can find ways to boost activated dendritic cells, we may be able to strengthen the immune system’s response to cancer and help more patients benefit from immunotherapy, including some whose cancers currently resist treatment.”
Senior author Prof Santiago Zelenay added: “Activated dendritic cells do not just launch the anti-tumour immune responses, they are also essential for sustaining them within the tumour itself. This changes how we think about their role and opens up new opportunities to improve cancer immunotherapy.”
The work was funded by Cancer Research UK, with additional support from the European Molecular Biology Organization and the Italian Association for Cancer Research UK.
Research Information Manager at Cancer Research UK, Dr Marianne Baker, said: “Immunotherapies that harness our immune system to beat cancer are saving lives, but we don’t yet understand why they work for some people and not others. The models developed as part of this study could help scientists unlock ways to boost these revolutionary treatments via dendritic cells, a type of immune cell. We need more research to get there, but this work could help to solve unanswered questions in cancer immunotherapy and beyond.”
The post Scientists unmask immune cells that supercharge the fight against cancer appeared first on Drug Discovery World (DDW).
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New webinar: Tackling drug discovery challenges in cancer research

Hosted by Drug Discovery World and supported by Sartorius and BioIVT, this webinar will explore the opportunities and challenges that exist within cancer research drug discovery and development.
You will hear from Dr Sudha Rao, Chief Scientific Officer of Kazia Therapeutics, Karol Budzik, PhD, Business Development Associate at Vyriad Therapeutics and Lars van der Veen, Chief Scientific Officer at iOnctura.
Presentations will cover how cancer treatments have shifted towards reprogramming the biology driving tumour growth, immune escape and treatment resistance, the trajectory that in vivo CAR-T treatments are taking, and how challenging tumours burdened by stroma and immune-mediated resistance can be tackled.
Q&A with the speakers follows the presentations.
The post New webinar: Tackling drug discovery challenges in cancer research appeared first on Drug Discovery World (DDW).
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Psilocybin proves promising in neuropathic pain mouse study
Amid the rise of psychedelics in the mental health space, researchers have begun to explore psilocybin as a treatment for chemotherapy-induced peripheral neuropathy.
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New Spectrometry Technique Could Aid Formulation Development
New Spectrometry Technique Could Aid Formulation Development
A new technique combining two forms of spectrometry could help biopharmaceutical companies improve their choice of formulation buffer for antibody manufacturing by revealing how molecular forms and three-dimensional shapes of complex biologics respond to their environment. That’s the view of Christian Bleiholder, PhD, a professor at Florida State University who helped develop the technique.
According to Bleiholder, what happens structurally when a complex biological molecule, such as an antibody or viral spike protein, binds to its target is currently poorly understood.
“This is where [this approach] can help with the bioprocessing and formulation,” he says, as structural changes “can affect the lifespan [of the product] and lead to issues, such as aggregation.”
Because antibodies are complex, existing techniques tend to be powerful at different levels of complexity, he explains. Mass spectrometry is particularly powerful for distinguishing molecular composition, while structural approaches such as X-ray crystallography and cryo-electron microscopy can provide high-resolution structural information.
The challenge is understanding the link between these things within a heterogeneous sample, he says.
To overcome this, Bleiholder and his team worked with Bruker Daltonics to develop Tandem-Trapped Ion Mobility Spectrometry (Tandem-TIMS). This combines tandem ion mobility spectrometry with tandem mass spectrometry to disentangle three overlapping layers of molecular complexity: molecular form, three-dimensional shape, and binding or assembly state, he says.
He explains that, if the proteins have different structures, they can be characterized with tandem ion mobility spectrometry, and then mass spectrometry can be used to look at their molecular forms and binding states.
Going forward, Bleiholder hopes the technique can be used for formulation development but also earlier, during drug discovery of new products, such as multi-specific antibodies, to determine which molecular states are important and how those change when a biologic engages its target. He also plans to look at automating the technique.
Bleiholder spoke about using Tandem-TIMS at the Bioprocessing Summit in Boston earlier this year.
The post New Spectrometry Technique Could Aid Formulation Development appeared first on GEN – Genetic Engineering and Biotechnology News.
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