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SIGNAL TRANSDUCTION BY THE T-CELL ANTIGEN RECEPTOR

SIGNAL TRANSDUCTION BY THE T-CELL ANTIGEN RECEPTOR


To elucidate the stoichiometry of the TCR. Study the mechanisms of assembly and intracellular retention. Discern between the specific and redundant roles of each of the TCR subunits.
Main specialization

FUNCTIONAL GLYCOGENOMICS

FUNCTIONAL GLYCOGENOMICS


Glycosylation is a complex post-translational modification that generates diverse glycans, contributing to the functional diversity of proteins. Our group has focused on analyzing the N-glycome using a novel platform to study disease markers. We've collected well-characterized samples from Chagas disease, visceral leishmaniasis, and neurocysticercosis. By analyzing individual glycomic profiles, we've identified markers of treatment efficacy and disease progression.
Main specialization

Functional interactions between tetraspanins and cell adhesion molecules

Functional interactions between tetraspanins and cell adhesion molecules


Our group has demonstrated experience in the functional characterization of surface proteins on tumour, leukocytic and endothelial cells, that have implication in the processes of adhesion, migration, angiogenesis and tumoral dissemination.
Main specialization

Viral Immunology

Viral Immunology


Mechanisms of infected cell recognition and in vivo control of viral infections by CD8+ cytotoxic T lymphocytes and use in vaccine development.
Main specialization

IMMUNE DEVELOPMENT AND INFLAMMATORY-MEDIATED DISEASES

IMMUNE DEVELOPMENT AND INFLAMMATORY-MEDIATED DISEASES


Our research focuses on the role of TCFL5, a bHLH transcription factor, in colon cancer cells. Deletion of TCFL5 significantly reduces tumor properties. Two major isoforms, TCFL5_E1/E8 and TCFL5_E2b/E8, have distinct functions. TCFL5_E1/E8 regulates anti-apoptotic genes like BCL2, while TCFL5_E2b/E8 controls pluripotency markers. We identified genes regulated by these isoforms and their roles in leukemia and lymphopoiesis. TCFL5_E2b/E8 is associated with severity in lymphoma and myeloma. Tcfl5 deficiency impairs germinal center formation and B cell differentiation.
Main specialization

NITRIC OXIDE AND BIOACTIVE LIPIDS IN THE IMMUNE RESPONSE

NITRIC OXIDE AND BIOACTIVE LIPIDS IN THE IMMUNE RESPONSE


There are many evidences for the involvement of lipid mediators such as prostanoids and cholesterol derivatives in the modulation of inflammatory and cardiovascular pathophysiology. Prostanoids have important roles in physiological processes such as renal and vascular homeostasis, as well as having a central role in the inflammatory process.
Main specialization

Development of the human lymphohematopoietic system

Development of the human lymphohematopoietic system


Our interest is the identification of the molecular regulators that control the physiological and pathological development of T and non-T (mainly dendritic) cells in the human thymus. Using loss and gain of function genetic approaches, functional assays and in vivo models of hematopoietic reconstitution in humanized mice, we have focused on the Notch1 signaling pathway, analyzing the spatio-temporal regulation of its ligands in the thymus and its role in the physiology of intrathymic T-cell development.
Main specialization

Immunity and Viromics

Immunity and Viromics


We are interested in understanding how viruses evade the host immune response. We are characterizing herpesvirus and poxvirus proteins that interact with interferons, cytokines or chemokines, and modulate their activity. The contribution of viral cytokine receptors to pathogenesis is being addressed in mouse models of infection.
Main specialization