After obtaining a PhD for work on Drosophila DNA binding proteins (CID-CSIC, Barcelona), he gave a strong turn to his career to apply his molecular biology skills to study malaria parasites. He worked for four years as Head of the Molecular Parasitology lab at the Papua New Guinea IMR, where his research mainly focused on basic malaria parasite biology, but also on epidemiological aspects of the disease. Back to Europe, he worked for over two years at the MRC-NIMR (London) on epigenetic regulation of gene expression and invasion of erythrocytes by malaria parasites. In 2006 he moved to IRB Barcelona with an ICREA jr contract. In 2011 he joined CRESIB-ISGlobal, and in 2012 he was appointed ICREA Research Professor. His current research focuses on epigenetic regulation of gene expression in malaria parasites, which plays a key role in their adaptation to changes in the environment and in the control of sexual conversion, among other host-parasite interactions.
The malaria parasite Plasmodium falciparum regulates at the epigenetic level the expression of a multitude of genes that participate in host-parasite interactions (clonally variant genes). These genes can be found in either an active or a silenced state, which is clonally transmitted from one generation to the next. At the malaria epigenetics lab we study the chromatin-based mechanisms involved in the epigenetic regulation of clonally variant genes, and how transcriptional variation results in phenotypic variation and contributes to parasite adaptation to changes in the environment. We combine genome-wide studies with studies on specific clonally variant genes that control important processes in parasite biology. Among these, we are especially interested in the regulation of solute uptake and sexual conversion, which is necessary for malaria transmission. More recently, we started investigating the transcriptional changes that mediate parasite survival at febrile temperatures.