This project, led by Harilanto Razafindrazaka (PhD, CR CNRS), follows a tradition of the laboratory which is the study of the genetic diversity of the populations of the Indian Ocean including the Comoros and Madagascar.
Projects
One of the specificities of our species is its great cultural diversity which, in the same way as genes, is transmitted from generation to generation, which raises the question: how do cultural differences between human populations interact with their biological diversity and vice versa?
Given its medical implications, which will be seen elsewhere, and in the light of high-throughput genomic sequencing, this project proposes an expert re-reading of the molecular genetics of immunogenic polymorphisms (erythrocyte blood group systems and systems involved in the immune response) with a view to contributing both to the understanding of the history and evolution of modern humans and to the evolutionary history of these genes in order to outline their phylogeny.
Human beings and microbes have a permanent and double-edged relationship. In the intestinal flora they complement each other and in some cases these microorganisms cause infectious diseases in humans.
This project is led by Julie Di Cristofaro (PhD, HDR, CR EFS), Christophe Picard, (MD, PhD, HDR, EFS) and Pascal Pedini (PharmD, PhD, EFS), it benefits from many collaborations, including that with the team of Pr Pascal Chanez (APHM, INSERM, C2VN).
Based on the data from the previous project, the main objective of this project is to define the biomarkers particularly involved in the phenomena of tolerance, inflammation and rejection in order to improve the diagnostic and therapeutic management of transfused, grafted or transplanted patients as well as their donor selection.
The immunological safety of transfusions is based, among other things, on the compatibility of erythrocyte blood groups. Today there are about 380 different antigens in 44 systems. More than half of them are considered rare, i.e. their frequency in the general population is less than 4/1000.