The Fight Against Childhood Brain Tumors

Fortunately, childhood brain tumors are very rare. Despite progress made over recent years, however, childhood brain tumors tend to be linked to poor prognoses coupled with low survival rates.

Dr Alexander Beck worked in Boston, USA as a fellow in pediatric neuro-oncology, later returning to his home country of Germany to establish a laboratory at the Ludwig Maximilian University of Munich. His current research is focused on pediatric brain tumors and drug translation.

Most of our work is funded by donations and every donation counts. Our main focus is on diffuse intrinsic pontine glioma, a brain tumor that usually affects children between five and nine years of age, with no significant long-term survival beyond five years. Progress in this area is very difficult, and so the emphasis is on the rapid translation of drugs that we can give children now, looking at approved drugs that we can repurpose, as well as working with pharmaceutical companies to develop new therapeutics.”

Dr Alexander Beck, Ludwig Maximilian University of Munich

The INTEGRA family of products have been an essential addition to the laboratory since the very beginning. The laboratory has made particular use of the ASSIST PLUS pipetting robot, the VOYAGER adjustable tip spacing pipettes, the EVOLVE manual pipettes and the PIPETBOY acu 2 pipette controller.

Dr Beck elaborates, “We needed to purchase a range of equipment to set up our facility, and I began by acquiring a VACUBOY for liquid aspirations. The INTEGRA team then introduced me to their other products, and I purchased an ASSIST PLUS pipetting robot, as well as EVOLVE and VOYAGER pipettes and several PIPETBOY acu 2.”

Supporting drug development and efficacy

“Our lab assesses drugs in terms of their efficacy on tumor cells, blood-brain barrier penetration, toxicity and, on a deeper level, the tumor biology,” highlights Dr Beck.

“To do this, we use tumor models derived from preclinical patient biopsy samples, as well as quite sophisticated brain organoid cultures, which are biologically very close to what we see in the primary tissue. Alongside this, we have blood-brain barrier models that allow us to test a drug’s ability to cross from the blood into the brain, as well as methods to study the neurotoxic potential of drugs to understand dose-limiting toxicities.

“These results are communicated to the clinicians on a case-by-case basis, as part of a highly individualized treatment approach. Although we don’t run huge preclinical trials, we try to keep the major clinical centers informed of our findings, as this allows them to use these drugs in broader clinical trials to evaluate the potential significance of our results.

“In cases with an extremely poor prognosis, we can even recommend drugs that are in the very early stages of clinical development, although we still need some human toxicity data before suggesting treatment.”

Image Credit: Ludwig Maximilian University of Munich

Project-changing equipment

The ASSIST PLUS pipetting robot is without doubt the system that has had the most impact on our work; I don’t think there is anything else out there with the same capabilities, especially for its price point. We do a large amount of cell culture, and have set up an ASSIST PLUS workflow to test a lot of drugs weekly. Initially, we seed 96 or 384 well plates of tumor cells, then perform drug dilutions and the drug treatment.

Dr Alexander Beck, Ludwig Maximilian University of Munich

Dr Beck continued, “Finally, the system is used for the viability assay. We can test 20 to 30 plates a week – a much higher throughput than manual processing, where we could process two plates a week – and, at the same time, free up time for other tasks thanks to its automation abilities.”

ASSIST PLUS – Free yourself from routine pipetting

Video Credit: INTEGRA Biosciences

The ASSIST PLUS pipetting robot and VIALAB software facilitate the quick, easy creation of automated pipetting protocols.

Dr Beck highlights the software’s user-friendliness and intuitiveness, “The software is super intuitive – it’s as easy to use as a smartphone – and it also lets us simulate programs, helping to prevent mistakes before they are made. Medical students don’t always have a lot of lab experience but, thanks to our automation, we just have to teach them basic cell culture techniques. The rest is then carried out by the robot, which is a huge benefit in terms of reproducibility.”

Improving productivity and precision

The VOYAGER pipettes on the ASSIST PLUS have enabled the laboratory to considerably increase throughput, making the process more accurate and faster.

We are now optimizing the use of a six channel VOYAGER with wide bore tips on the ASSIST PLUS, to transfer embryoid bodies from 96 to 24 well plates. Automating this process would ensure that no embryoid body is missed and could reduce the workflow from hours to just a matter of minutes.

Dr Alexander Beck, Ludwig Maximilian University of Munich

“Previously, this had to be done with a single channel pipette, transferring the bodies one by one; it wasn’t even possible using a fixed space multichannel pipette due to the difference in spacing between the well plates.” Added Dr Beck.

Image Credit: INTEGRA Biosciences

The level of automation afforded with INTEGRA instruments has significantly helped to improve life in the laboratory.

Using the ASSIST automated pipetting system for reagent addition

Traditional pipettes employ a single rotating plunger to set volumes. This is often a long, tedious process, particularly when switching between lower and higher volumes. To help make this process more efficient, EVOLVE pipettes feature three quick set dials, corresponding to each of the three volume digits.

Dr Beck summarizes the benefits of using the EVOLVE pipettes, “The EVOLVE pipettes make such a difference to our work too; the quick set dials allow us to change dispensing volumes with ease, making our workflows faster and more streamlined. We have over 30 of these pipettes now and they are very comfortable to handle.

“The GripTips pipette tips are very beneficial too. When you're conducting as much work as we are, it’s great to know that you don’t have to worry about losing tips or samples! Although translational research for brain tumors is certainly a challenging field, our INTEGRA portfolio is helping us along the way.”

Image Credit: INTEGRA Biosciences

About INTEGRA Biosciences

INTEGRA provides innovative solutions for Liquid Handling and Media Preparation applications which serve the needs of their customers in research, diagnostics and quality control laboratories.

Their instruments and plastic consumables are developed and manufactured in Zizers, Switzerland and Hudson, NH USA. In order to remain close to their customers, they maintain a direct sales and support organization in North America, the UK, France and Germany, as well as a network of over 100 highly trained distribution partners worldwide.

In recent years they have focused on developing a new and technologically advanced range of handheld electronic pipettes which are simple to use and meet the ergonomic needs of their customers. Today they are proud to offer the widest range of electronic pipettes in the market spanning a range from single channel pipettes up to 384 channel bench-top instruments.

Sponsored Content Policy: publishes articles and related content that may be derived from sources where we have existing commercial relationships, provided such content adds value to the core editorial ethos of News-Medical.Net which is to educate and iform site visitors interested in medical research, science, medical devices and treatments.

Last updated: Jun 1, 2021 at 5:45 AM


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