Optogenetic cell analysis - 15/05/2023

opto biolabs: how frustration and inventiveness led to the establishment of a company

When she found she had no suitable illumination devices for her doctoral thesis, Dr. Kathrin Brenker simply created her own customised adapters and founded a company called opto biolabs. Now, Brenker and company co-founder Luis Köbele sell two different types of devices. The main goal is to equip laboratories with illumination technologies that allow optogenetics methods to be used to accelerate development of optogenetic therapeutics.

CureVac N.V., a global biopharmaceutical company developing a new class of transformative medicines based on messenger ribonucleic acid (mRNA), today announced the publication of preclinical data demonstrating that their COVID-19 vaccine candidate, CVnCoV, protects against challenge infections with the SARS-CoV-2 Variant of Concern B.1.351 and a strain of the original SARS-CoV-2 B1 lineage (BavPat1) in a transgenic mouse model.

With the aid of physical forces it is possible to actively steer the formation of engineered tissue. For example, sound waves can be used to create functional vascular networks with blood vessel-like structures in vitro. Scientists at the Center for Molecular Biology of Heidelberg University have demonstrated this through their methodology for acoustic manipulation.

Artificial intelligence (AI) can help dermatologists to detect skin cancer. However, many dermatologists distrust the algorithms' decisions, which they cannot comprehend. Scientists at the German Cancer Research Center have now developed an AI-based support system for skin cancer diagnostics that explains its decisions.

Traumatic brain injuries often lead to complications with long-lasting consequences on memory, concentration and movement control. Detrimental secondary inflammatory reactions at the injured tissue sites are often responsible for this. Researchers from Ulm have now shown that a transcription factor plays a key role in reactions to TBI. When this gene regulator is activated, an elevated neuroimmune response promotes inflammation.

University of Tübingen research team observes biochemical process in living cells – indications of new approach to preventing heart attacks and strokes

Being overweight and obesity may contribute to significantly more cancer cases than previously thought. This is the conclusion reached by researchers at the German Cancer Research Center (DKFZ). Their analysis shows that when more accurate measures of body fat and methodological biases are considered, more than 10 percent of all cancer cases can be attributed to increased body weight - nearly twice as many as previous estimates suggested.

Heidelberg scientists decode the genetic foundations of rapid testicle evolution in mammals and humans. Evolutionary pressure across male mammals to guarantee the procreation of their own offspring led to a rapid evolution of the testicle.

The health of nerve cells is closely linked to the auxiliary cells that surround them, the so-called glial cells. It still remains largely unknown what role glial cells play in age-related diseases.

Targeted molecular interventions in the replication cycle and the immune recognition of viruses are intended to prevent viral entry into cells and virus replication. Scientists work on new approaches to combating highly dangerous viral diseases such as yellow fever or Lassa fever. The European Union is supporting the project over a period of five years to the tune of just under eight million euros.

On the basis of the cooperative relations that have developed over time, Heidelberg University and Harvard University are going to deepen and expand their cooperation. They have signed a Memorandum of Understanding to that effect. As an institutional internationalization project, the state of Baden-Württemberg is providing ten million euros to support this initiative, which is part of the state’s “Global Partnership in Science” activities.

A severe side effect of radiation therapy can be debilitating fibrotic skin damage. Scientists at the German Cancer Research Center (DKFZ) have now identified a key factor in the development of this radiation damage. Modulating this factor could potentially prevent this severe adverse effect.

Freiburg-Prague research collaboration achieves scientific breakthrough in understanding cell division. The international research collaboration has uncovered a new mechanism of the crosstalk between microtubules and actin cytoskeleton during cell division and revealed unique characteristics of the previously unexplored protein FAM110A.

The weight of expectant mothers could play a role in the development of acute lymphoblastic leukemia (ALL) in daughters – but not in sons. This has been shown by researchers at the German Cancer Research Center (DKFZ).

In a study, a team of researchers show that groups of magnetic microrobots can generate fluidic forces strong enough to rotate objects in different directions without touching them. These microrobot swarms can turn gear systems, rotate objects much larger than the robots themselves, assemble structures on their own, and even pull in or push away many small objects. The work was now published in Science Advances.

A team led by researchers from the German Cancer Research Center and the HI-STEM* Stem Cell Institute has discovered a new approach to treating advanced colorectal cancer. The study identifies a key marker of particularly aggressive and treatment-resistant colorectal cancer cells. At the same time, the researchers demonstrate using models that already approved drugs targeting this marker can specifically attack the metastasis-initiating cells.

Microrobots have the potential to revolutionize medicine. Researchers at the Max Planck ETH Centre for Learning Systems have now developed an imaging technique that for the first time recognises cell-sized microrobots individually and at high resolution in a living organism. This is an important step towards precise control of the robots and their clinical translation.

Brain tumor cells with a certain common mutation reprogram invading immune cells. This leads to the paralysis of the body's immune defense against the tumor in the brain. Researchers from Heidelberg, Mannheim, and Freiburg discovered this mechanism and at the same time identified a way of reactivating the paralyzed immune system to fight the tumor.

With mice, researchers showed that experimentally induced lack of blood flow in the brain epigenetically reprograms astrocytes into brain stem cells, which in turn can give rise to nerve progenitor cells. This discovery shows that astrocytes could potentially be used in regenerative medicine to replace damaged nerve cells.

New findings indicate that a shingles vaccination could not only reduce the risk of cognitive impairment and dementia, but also reduce disease progression among those living with dementia.

In order to develop approaches for the prevention and treatment of Alzheimer's dementia in clinical trials, it would be helpful to be able to identify people with a particularly high risk of developing the disease. But which biomarkers can indicate an increased likelihood of disease early on in symptom-free people who actually develop Alzheimer's later?

Researchers of the University of Freiburg introduce biosensor for the nucleic acid amplification-free detection of SARS-CoV-2 RNA.

Researchers at the University of Freiburg, together with partners, have uncovered the mechanism of ultrafast transport by calcium pumps in nerve cells. These pumps, complexes of PMCA2 and neuroplastin proteins, operate at more than 5,000 cycles per second and terminate calcium signals within milliseconds – 100 times faster than previously known. They play a crucial role in rapid information processing in the brain.

An imaging technique developed by Freiburg researchers provides insights into cardiac arrhythmias that can cause sudden cardiac death in animal models. The changes discovered could explain why even seemingly healthy people are sometimes affected.

Most everyday moments are quickly forgotten, while others stay with us for a lifetime. How the brain determines which memories are retained and which are lost remains an open question. A neuroscience team at the University of Tübingen, has found that spontaneous fluctuations in the brain’s internal state influence how ready the memory system is to store new information.