Leonardo Rossi

Leonardo Rossi is Professor of Biology and Genetics at the University of Pisa, where he has developed a long-standing academic career spanning nearly three decades in cell biology, stem cell biology, and experimental models of tissue regeneration.

His research has primarily focused on the biology of stem cells and cellular plasticity, using planarians as a powerful model system to investigate fundamental mechanisms of regeneration, cell fate determination, and tissue homeostasis. Through this work, he has contributed to elucidating how stem cell populations respond to physiological stress, environmental cues, and damage, providing insights into the balance between quiescence, proliferation, and differentiation.

In parallel, his scientific activity has explored mitochondrial function, cellular metabolism, and apoptotic pathways in cancer models, including glioblastoma, highlighting the role of bioenergetics and mitochondrial dynamics in tumor cell survival and therapeutic response. Earlier contributions also include involvement in research on the possible viral etiology of breast cancer, reflecting an interest in the complex interplay between infectious agents and oncogenesis.

Professor Rossi has also developed strong expertise in ultrastructural analysis and electron microscopy, contributing advanced imaging approaches to the study of cellular organization and pathogen–host interactions. In this context, he is actively involved in the research efforts on the human betaretrovirus (HBRV), the putative human homolog of MMTV, where his work is helping to characterize viral particles and their interaction with human tissues.

More recently, his research has extended to systems-level investigations, including studies on the effects of altered gravity on cellular and tissue function, as well as the impact of environmental stressors such as microplastics. Across these diverse areas, a unifying theme of his work is the investigation of how cells adapt to perturbations, whether intrinsic or environmental, and how these adaptive mechanisms may become dysregulated in disease.

With a solid background in experimental biology and broad methodological expertise, Professor Rossi has solid perspective on cell plasticity, stress responses, and the biological bases of disease. His work is particularly relevant to understanding early cellular events that may predispose tissues to malignant transformation, including those potentially linked to viral or environmental factors.

ORCID ID: https://orcid.org/0000-0002-1143-8695