Challenging Development of a Humanized Mouse Model for Evaluating the HTLV-1 Infection and Leukemogenic Process in vivo
type: Dataset
description: Human T-cell Leukemia Virus type 1 (HTLV-1) is the etiologic agent of the Adult T-cell Leukemia (ATL), an aggressive lymphoproliferation of activated CD4+ T cells. The lack of a reliable small animal model to reproduce in vivo the leukemogenic process associated with HTLV-1 infection has impaired the understanding of the early stages of this process as well as the discovery of effective therapeutic approaches. Recently, improvement in the models of humanized mouse models were achieved allowing the development of a human immune system in mice. Injection of human hematopoietic stem and progenitors cells purified from cord blood into Balb/c Rag2-/-γc-/- newborns allows the de novo production of human dendritic, B and T cells. We infected humanized mice with HTLV-1 producing cell lines resulting in infection of human cells within the mice and the development of lymphomas and leukemias. This infection also results in the alteration of the T-cell development within the thymus pushing the thymocytes toward a more mature phenotype. This small animal model recapitulating in vivo the HTLV-1 infection and its associated pathogenesis gave us the opportunity to study the evolution of the clonality of the virus among human cells in different lymphoid organs. Based on these observations, preliminary results on the use of a new therapeutic approach were obtained. We finally tried to adjust the humanization protocol in order to obtain better engraftment in this model.
landing page: https://theses.hal.science/tel-00682482
identifier: NNT: 2011ENSL0704
keyword: atl
keyword: developpement-t
keyword: htlv-1
keyword: humanized-mice
keyword: infoeu-reposemanticsdoctoralthesis
keyword: leucemie
keyword: leukemia
keyword: lymphoma
keyword: lymphome
keyword: sdvbclife-sciences-q-biocellular-biology
keyword: souris-humanisees
keyword: t-cell-development
keyword: theses
keyword: thymus
issued: 2026-05-23T13:10:07.975941
modified: 2026-05-23T13:10:07.975946
language: en
contact point: Organization
  fn: CCSD

test_moissonnage_selune
type: Agent

Challenging Development of a Humanized Mouse Model for Evaluating the HTLV-1 Infection and Leukemogenic Process in vivo
type: Distribution
format: HTML
access URL: https://theses.hal.science/tel-00682482
issued: 2026-05-23T13:10:08.089344
modified: 2026-05-23T13:10:07.932917