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Meet Alejo Rodríguez-Fraticelli, new Group Leader at IRB Barcelona




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Tel.+34 93 40 37255

Alejo E. Rodriguez-Fraticelli was born in Argentina. He studied at the Colegio Nacional de Buenos Aires. In 2008, he moved to Madrid, where he studied Biochemistry, and he received his PhD in Developmental and Cell Biology at the Universidad Autónoma de Madrid in 2014. He then moved to Boston (USA) to work on cell fate determination in hematopoiesis at Harvard University and Boston Children’s Hospital.

During his postdoctoral fellowship, Alejo worked on developing methods for single cell lineage tracing in the hematopoietic system. His work contributed to a recent modern revision of the paradigm of unperturbed in vivo hematopoiesis, demonstrating the coexistence of multiple lineage hierarchies with imprinted and biased cellular fates.


"Our lab is a playground for scientists from different backgrounds bound together by the common interest of understanding regeneration and its evil twin, cancer"


Since 2015, Alejo has also worked with the lab of Dr. Allon Klein (Harvard Medical School) to combine single cell lineage tracing and single cell sequencing methods.



His works spun out a revolutionary way to connect cellular states with cellular fates through clonal analysis, to determine how cell state variation contributes to cell phenotypic heterogeneity.

In 2021, Alejo has become Group Leader at IRB Barcelona where, he heads the Quantitative Stem Cell Dynamics lab, which he defines as "a playground for scientists from different backgrounds bound together by the common interest of understanding regeneration and its evil twin, cancer".

Their goal is to provide talented individuals with support, resources, flexibility and understanding, to ultimately help them become global scientific leaders. ​In their lab, exploring is encouraged, challenges are mandatory, and failing is the only way to move forward. 

On a personal level, they aim to be a diverse group, with different ethnicities and philosophies, and with a passion for sharing: "If you're weird, here you'll find a home. If you're unique, here you'll find a group of peers. And if you're a bit crazy, here you'll find the opportunities that you need to break out".

Their goal is "to give you the raw materials for you to build something truly game-changing. Here, we play games, we have fun, and we science it out".


About IRB Barcelona

The Institute for Research in Biomedicine (IRB Barcelona) pursues a society free of disease. To this end, it conducts multidisciplinary research of excellence to cure cancer and other diseases linked to ageing. It establishes technology transfer agreements with the pharmaceutical industry and major hospitals to bring research results closer to society, and organises a range of science outreach activities to engage the public in an open dialogue. IRB Barcelona is an international centre that hosts 400 researchers and more than 30 nationalities. Recognised as a Severo Ochoa Centre of Excellence since 2011, IRB Barcelona is a CERCA centre and member of the Barcelona Institute of Science and Technology (BIST).