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Sterile cure from visceralized Leishmania donovani (L. donovani) needs Th1 cell support along with the assistance from innate immune cells, NK cells and NKT cells. NKT cells play as a connecting link between innate and adaptive immune cell and support T helper cell function. Earlier, a categorical function of CD56 positive CD4+ or CD8+ NKT cells was reported in visceral leishmaniasis (VL). It was...
This study reports a structural and functional heterogeneity of CD8+CD56+NKT cells, which usually decrease quantitatively during visceral leishmaniasis. Based on fluorescence intensity of CD8 receptors on CD56+NKT cells, two populations of CD8+CD56+NKT cells have been identified. These cells were recognized as CD8dimCD56+NKT and CD8brightCD56+NKT cells. We further analyzed the functional nature of...
Visceral leishmaniasis (VL) is a disease that is associated with compromised immunity and drug un-responsiveness as well as with the emergence of drug resistance in Leishmania donovani (Ld). Ld down-modulates cellular immunity by manipulating signaling agents, including a higher expression of the adhesion molecule CD58. The expression of CD58 and CD2 on natural killer (NK) cells facilitates intercellular...
The objective of this study was to understand the categorical function of CD4 + CD56 + and CD8 + CD56 + NKT cells in human visceral leishmaniasis. These cell populations were significantly deregulated in human peripheral blood during VL. The in vitro experiments showed that CD4 + NKT cells, but not CD8 + NKT cells, migrated towards the Leishmania donovani...
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