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Proteomics refers to the comprehensive analysis of proteomes, the entire set of proteins present in an organism. The scientists in the research group of the same name are developing analytical methods with which biomolecules – predominantly proteins – can be assessed qualitatively and quantitatively.

© ISAS / Hannes Woidich

The researchers are looking not only at the structure of proteins, but also the dynamic changes that occur in them. The triggers for such changes are external influences (such as environmental factors), metabolic processes and communication processes in cells. These changes play a role in virtually all diseases – including cardiovascular disorders, cancer or diabetes.

The possibilities for applying proteomics analyses extend from fundamental research through to new developments for medical diagnostics. They make an important contribution to targeted diagnostics – for example in the form of proteins as target molecules (biomarkers) – and the individual treatment of patients. For instance, personalised therapeutic options make it possible to tailor treatment to individuals for some cancers. This requires knowledge of the genes, proteins and other molecules that are relevant for the type of cancer and the course of treatment. In order to find the molecular switches for the genesis or the course of a disease, the researchers are examining exactly where and how which (bio)molecule acts in the cell, how it is transported and what it binds to; in short, how that biological system works in its entirety.

Highlights

7th February 2025

The Less the Better

If neutrophil granulocytes migrate into injured tissue, for example into the brain after a stroke, they can promote chronic inflammation and cause long-term damage. In order to analyze the functional dynamics of these immune cells, millions of them are needed. A group of researchers recently developed a method that enables mass spectrometric analysis with just 1,000 neutrophils.

Susmita Ghosh am Massenspektrometer.
29th August 2024

Protein interaction paralyses a young patient

Two mutations in the genetic material of a boy lead to the rare neuromuscular disease NEDHFBA. Investigations of the young patient's samples by researchers at Essen University Hospital and ISAS shed light on the previously unrecognized mechanisms behind the symptoms: Proteins influence the development of the rare disease.

Bild von Dr. Andreas Hentschel, Mitarbeiter in der Arbeitsgruppe Translationale Analytik.
2nd August 2024

Thrombocyte Proteome: Tracking down Life-threatening Events in the Bloodstream

Thrombocytes (blood platelets) can link up at lightning speed and block a vessel as a thrombus. Possible consequences include heart attacks or strokes. Scientists at ISAS are therefore looking for molecular markers for platelet activation. In future, this knowledge could help doctors recognise a thrombosis before it occurs and react accordingly.

Dr. Fiorella Solari.
20th February 2024

SARS-CoV-2: The Very Latest Methods Clarify the Active Agents and the Mechanism of Action of Ancient Self-Medications

Prophylactic, soothing or even healing agents, mostly natural substances, have been known to natural medicine since ancient times. But what about viral infections? Could infusions made from sage or perilla also be used against SARS-CoV-2 infections -as a prevention or an aid to healing? An interdisciplinary team of researchers led by Prof Dr Mirko Trilling from the Faculty of Medicine at the University of Duisburg-Essen (UDE) and scientists at ISAS investigated these questions during the coronavirus pandemic.

Das Bild zeigt Prof. Dr. Mirko Trilling mit verschränkten Armen, an einer Wand lehnend. The picture shows Prof Dr Mirko Trilling with his arms folded, leaning against a wall.
4th May 2023

What are you doing at ISAS, Joy?

What role does the oxygen level in the blood play in thrombosis? Joy Amrei Brummel is tackling this and other questions in her bachelor's thesis. The 24-year-old student reports on how she applies her university knowledge in the ISAS laboratory.

Joy Amrei Brummel stellt eine Probe in die Zentrifuge.
16th September 2022

Differences are Critical

What do sex-specific differences mean for health research? What role do they play in applied basic research? Five ISAS scientists with different research focuses have an answer to these questions.

Female symbol, unequal, male symbol.
25th August 2022

Two ISAS Postdocs Accepted for Leibniz Mentoring

Physicist Dr Elen Tolstik and biologist Dr Fiorella Solari give an insight into what they hope to gain from their participation in the Leibniz Mentoring programme.

Dr. Elen Tolstik & Dr. Fiorella Solari.
10th August 2022

Tumour-Associated Neutrophils: A Robot Could Save Precious Samples

For Susmita Ghosh, examining the molecular makeup of tumour-associated neutrophils comes with two challenges: limited samples and biopsy material prone to damage.

Julia Rauch & Susmita Ghosh am Bravo Roboter.
4th August 2022

Biomarkers for Babies with Rare Diseases

To improve drug therapy for SMA patients, scientists at ISAS have identified a protein that can be used to control the course of the disease.

Portrait Andreas Hentschel.
6th October 2021

Proteogenomics Method Enables Analyses for Cancer Medicine & Marine Research

Bernhard Blank-Landeshammer developed a method that makes it possible to identify peptides in tissue samples using mass spectrometry. It combines information on genomics, proteomics and transcriptomics.

Bernhard Blank-Landeshammer hat in der Arbeitsgruppe Proteomics promoviert und eine Proteogenomics-Methode entwickelt, mit der man Peptide in Gewebeproben mittels Massenspektrometrie identifizieren kann.

Projects

Team

Prof. Dr. Albert Sickmann

Chairman of the Board Department Head

Department: Bioanalytics

Research group: Proteomics

Portrait von Prof. Dr. Albert Sickmann.

Dr. Pierre Conan

Research Associate

Department: Bioanalytics

Research group: Proteomics

Ilka Deipenwisch

Research Associate

Department: Bioanalytics

Research group: Proteomics

Portrait von  Ilka Deipenwisch.

Susann Echterhoff

Student Assistant

Department: Bioanalytics

Research group: Proteomics

Kevin Hau

Research Associate

Department: Bioanalytics

Research group: Proteomics

Portrait von  Kevin Hau.

Dr. Andreas Hentschel

Research Associate

Department: Bioanalytics

Research group: Proteomics

Yu-Heng Hsieh

Research Associate

Department: Bioanalytics

Research group: Proteomics

Portrait von  Yu-Heng Hsieh.

Lennart Frederic Lobe genannt Laube

Student Assistant

Department: Bioanalytics

Research group: Proteomics

Sara Lomuscio

Research Associate

Department: Bioanalytics

Research group: Proteomics

Portrait von  Sara Lomuscio.

Gina Piontek

Research Associate

Department: Bioanalytics

Research group: Proteomics

Portrait von  Gina Piontek.

Dr. Fiorella Solari

Research Associate

Department: Bioanalytics

Research group: Proteomics

Portrait von Dr. Fiorella Solari.