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Home / Archives for Khouri R

CRF19_cpx is an Evolutionary fit HIV-1 Variant Strongly Associated With Rapid Progression to AIDS in Cuba

  • Autores: Abrahantes Y, Aleman Y, Khouri R, Kourí V, Megens S, Moutschen M, Pérez AB, Perez J, Perez L, Pfeifer N, Pineda-Peña AC, Theys K, Van Laethem K, Van Weyenbergh J, Vandamme AM, Vercauteren J
  • Ano de Publicação: 2015
  • Journal: EBioMedicine
  • Link: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4484819/%20

Clinicians reported an increasing trend of rapid progression (RP) (AIDS within 3 years of infection) in Cuba. Recently infected patients were prospectively sampled, 52 RP at AIDS diagnosis (AIDS-RP) and 21 without AIDS in the same time frame (non-AIDS). 22 patients were sampled at AIDS diagnosis (chronic-AIDS) retrospectively assessed as > 3 years infected. Clinical, demographic, virological, epidemiological […]
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IFN-β induces greater antiproliferative and proapoptotic effects and increased p53 signaling compared with IFN-alpha in PBMCs of Adult T-cell Leukemia/Lymphoma patients

  • Autores: Bittencourt A, Decanine D, Dierckx T, Farré L, Khouri R, Menezes SM, Van Weyenbergh J, Vandamme AM
  • Ano de Publicação: 2017
  • Journal: Blood Cancer Journal
  • Link: https://www.nature.com/articles/bcj2016126

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A Fashi lymphoproliferative phenotype reveals non-apoptotic fas signaling in HTLV-1-associated neuroinflammation

  • Autores: Alvarez C, Brassat D, Decanine D, Dierckx T, Galvão-Castro B, Gotuzzo E, Khouri R, Kruschewsky R, Leal FE, Liblau R, López G, Menezes SM, Nixon DF, Schnitman SV, Silva-Santos G, Talledo M, Van Weyenbergh J, Vandamme AM, Vercauteren J
  • Ano de Publicação: 2017
  • Journal: Frontiers in Immunology
  • Link: https://www.frontiersin.org/articles/10.3389/fimmu.2017.00097/full

Human T-cell lymphotropic virus (HTLV)-1 was the first human retrovirus to be associated to cancer, namely adult T-cell leukemia (ATL), but its pathogenesis remains enigmatic, since only a minority of infected individuals develops either ATL or the neuroinflammatory disorder HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP). A functional FAS -670 polymorphism in an interferon (IFN)-regulated STAT1-binding site has been […]
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Ascorbic acid has superior ex vivo antiproliferative, cell death-inducing and immunomodulatory effects over IFN-α in HTLV-1-associated myelopathy.

  • Autores: Alvarez C, de Almeida Kruschewsky R, Decanine D, Galvão-Castro B, Gotuzzo E, Khouri R, López G, Menezes SM, Moens B, Silva-Santos G, Talledo M, Van Weyenbergh J
  • Link: http://www.ncbi.nlm.nih.gov/pubmed/?term=Ascorbic+Acid+Has+Superior+Ex+Vivo+Antiproliferative%2C+Cell+Death-Inducing+and+Immunomodulatory+Effects+over+IFN-alpha+in+HTLV-1-Associated+Myelopathy

BACKGROUND:
Clear therapeutic guidelines for HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP) are missing due to the lack of randomized double-blind controlled clinical trials. Moderate yet similar clinical benefit has been demonstrated for IFN-α and high-dose ascorbic acid (AA) monotherapy in a large open clinical trial.
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Simultaneous RNA quantification of human and retroviral genomes reveals intact interferon signaling in HTLV-1-infected CD4+ T cell lines.

  • Autores: Bittencourt A, Farré L, Galvão-Castro B, Gotuzzo E, Khouri R, López G, Moens B, Pannecouque C, Talledo M, Van Weyenbergh J, Vandamme AM
  • Journal: Virology Journal
  • Link: http://www.ncbi.nlm.nih.gov/pubmed/?term=Simultaneous+RNA+quantification+of+human+and+retroviral+genomes+reveals+intact+interferon+signaling+in+HTLV-1-infected+CD4%2B+T+cell+lines.

BACKGROUND:
IFN-α contributes extensively to host immune response upon viral infection through antiviral, pro-apoptotic, antiproliferative and immunomodulatory activities. Although extensively documented in various types of human cancers and viral infections, controversy exists in the exact mechanism of action of IFN-α in human immunodeficiency virus type 1 (HIV-1) and human T-lymphotropic virus type 1 (HTLV-1) retroviral infections.
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About GHTM

GHTM is a R&D Center that brings together researchers from IHMT with a track record in Tropical Medicine and International/Global Health. It aims at strengthening Portugal's role as a leading partner in the development and implementation of a global health research agenda. Our evidence-based interventions contribute to the promotion of equity in health and to improve the health of populations.

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