Dr. Stephan Hamperl

Throughout his scientific career, Stephan Hamperl has been fascinated by the intricate mechanisms that maintain genome stability amidst the dense, chaotic environment of the nucleus. His research focus lies on the molecular "traffic control" required to resolve transcription-replication conflicts (TRCs)—stochastic encounters that occur when the machinery copying the DNA and the machinery reading it collide on the same DNA template. His long-term goal is to understand how these conflicts drive genomic instability and how their mismanagement contributes to the onset and progression of cancer.

Stephan’s academic journey began with a deep interest in the fundamental principles of life’s blueprint. For his doctoral studies at the University of Regensburg, he focused on the biochemical and structural analysis of specific chromosomal domains derived from ribosomal DNA loci in the budding yeast.

Seeking to bridge the gap between basic chromatin biology and genetic instability, a hallmark of human diseases such as cancers, he joined the laboratory of Karlene Cimprich at Stanford University in 2013 for his postdoctoral research. During this time, he made seminal contributions to the field of genome maintenance. His work provided a new framework for understanding how the replisome (the replication machine) and RNA polymerase (the transcription machine) interact, demonstrating that the orientation and timing of these encounters are critical determinants of DNA damage. He specifically highlighted how "head-on" collisions are a potent source of R-loop-mediated stress and double-strand breaks.

In 2018, he established his own independent research group at Helmholtz Munich, where he aims to identify the molecular "brakes" and mechanistic pathways that cells use to clear the tracks for replication. His team’s work has led to key insights into how specific helicases and chromatin modifiers act as essential regulators of the interface between these two vital processes, ensuring that the crowded "enviroment" of the nucleus remains functional.

Over the past years, Stephan has been fully committed to fostering a collaborative and rigorous scientific environment. Driven by the belief that understanding the fundamental physics of the nucleus is the key to unlocking new therapeutic avenues, he is dedicated to mentoring the next generation of researchers in the field of genome biology.

He is currently a Group Leader at the Institute of Epigenetics and Stem Cells (IES) at Helmholtz Munich and a prominent figure in the Munich research landscape. His work continues to push the boundaries of how we view the nucleus—not as a static library, but as a high-speed, high-density environment where the preservation of life depends on the successful resolution of every single molecular encounter.