9 research outputs found
Lâimpact de la grossesse sur lâamplitude et la diversitĂ© de la reconnaissance antigĂ©nique des lymphocytes T cytotoxiques dirigĂ©s contre le VIH-1
La transmission mĂšre-enfant (TME) du VIH-1 est un des enjeux majeurs de la pandĂ©mie. Une meilleure comprĂ©hension de la rĂ©ponse des lymphocytes T cytotoxiques CD8+ (LTC) VIH-spĂ©cifiques lors de la grossesse facilitera le design de stratĂ©gies optimales pour diminuer la TME. Notre objectif est donc de caractĂ©riser lâamplitude et la diversitĂ© de la reconnaissance antigĂ©nique des LTC VIH-spĂ©cifiques avant, pendant et aprĂšs la grossesse chez des femmes infectĂ©es par le VIH-1. Nos rĂ©sultats montrent pour la premiĂšre fois que lâinitiation et la progression de la grossesse, Ă elles seules, n'ont que peu dâinfluence sur lâamplitude et la diversitĂ© de la reconnaissance antigĂ©nique des rĂ©ponses LTC en termes de production dâIFNâï§. Ces rĂ©sultats indiquent que les femmes infectĂ©es par le VIH conservent une immunocompĂ©tence durant leur grossesse, du moins dans le contexte dâun traitement antirĂ©troviral efficace. Ceci pourrait Ă©ventuellement aider Ă promouvoir lâimmunisation comme stratĂ©gie pour prĂ©venir la TME du VIHâ1.Mother-to-child transmission (MTCT) of HIV-1 is one of the major issues of the pandemic. Characterization of HIV-specific immunity during pregnancy, especially cytotoxic CD8+ T lymphocytes (CTL), will lead to a better understanding of HIV pathogenesis and facilitate design of optimal strategies to prevent MTCT. Our objective is to describe the magnitude and the breadth of antigen recognition of HIV-specific CTL responses before, throughout and after pregnancy in a group of HIV-infected women. Our results revealed for the first time that initiation of pregnancy by itself doesnât change the magnitude of CTL responses in terms of IFN-ï§ production. These findings support the fact that HIV-infected women maintain immunocompetence throughout gestation, at least in the context of effective antiretroviral treatment. These results provide a novel understanding of the dynamics of HIV-specific CTL responses during pregnancy and may help to promote maternal immunization as a strategy to prevent MTCT of HIV-1
Colx194E9, F1 #5, plant 54 raw data, T14G11 indel marker.
<p>T14G11 indel marker initial data analysis of qPCR results.</p
LC13, wt hybrid plants 9B-10B raw data, F15H11 indel marker.
<p>F15H11 indel marker initial data analysis of qPCR results.</p
LC13, wt hybrid plants 9B-10B raw data, T14G11 indel marker.
<p>T14G11 indel marker initial data analysis of qPCR results.</p
Colx194E9, F1 #5, plant 54 raw data, F15H11 indel marker.
<p>F15H11 indel marker initial data analysis of qPCR results.</p
LC13, wt hybrid plants 9B-10B raw data, MGI19 indel marker.
<p>MGI19 indel marker initial data analysis of qPCR results.</p
Colx194E9, F1 #5, plant 54 raw data, T6H20 indel marker (2).
<p>T6H20 indel marker initial data analysis of qPCR results (2).</p
Colx194E9, F1 #5, plant 54 raw data, F6D8 indel marker.
<p>F6D8 indel marker initial data analysis of qPCR results.</p
Colx194E9, F1 #5, plant 54 raw data, T6H20 indel marker.
<p>T6H20 indel marker initial data analysis of qPCR results.</p