GEO DataSets

(Submitter supplied) Natural Killer (NK) cells likely play an important role in immunity to malaria, but whether repeated malaria modifies the NK cell response remains unclear. Here, we comprehensively profiled the NK cell response in a cohort of 264 Ugandan children. Repeated malaria exposure was associated with expansion of an atypical, CD56neg population of NK cells that differed transcriptionally, epigenetically, and phenotypically from CD56dim NK cells, including decreased expression of PLZF and the Fc receptor g chain, increased histone methylation, and increased protein expression of LAG-3, KIR and LILRB1. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing; Other; Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL24676 GPL18573

42 Samples

Download data: BED, H5

(Submitter supplied) Natural killer (NK) cells are innate cytotoxic and immunoregulatory lymphocytes that have a central role in anti-tumor immunity and play a critical role in mediating cellular immunity in advanced cancer immunotherapies, such as dendritic cell (DC) vaccines. Our group recently tested a novel recombinant adenovirus-transduced autologous DC-based vaccine that simultaneously induces T cell responses against three melanoma-associated antigens for advanced melanoma patients. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL25998

41 Samples

Download data: RCC, TXT

(Submitter supplied) Natural Killer (NK) cells are the first lymphocyte population to reconstitute early after non myelo-ablative and T cell-replete haploidentical hematopoietic stem cell transplantations (h-HSCTs) with post-transplant infusion of cyclophosphamide. The present study characterizes the transient and predominant expansion starting from the 2nd week after h-HSCT of a donor-derived unconventional subset of CD56dim/CD16neg (uCD56dim) NK cells expressing remarkable high levels of NKG2A and low levels of NKp46. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL24280

15 Samples

Download data: CEL, TXT

(Submitter supplied) We report our results of RNA-seq analysis on freshly isolated, sorted subsets of natural killer cells cultured with ascorbic acid

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL21697

8 Samples

Download data: TXT

(Submitter supplied) Human Natural Killer (NK) cells comprise two main subsets, CD56bright and CD56dim cells, that differ in function, phenotype and tissue localization. To further dissect the heterogeneity of CD56dim cells, we have performed transcriptome analysis and functional ex vivo characterization of human NK cell subsets according to the expression of markers related to differentiation, migration or competence. Here, we show for the first time that the ability to respond to cytokines or to activating receptors is mutually exclusive in almost all NK cells with the exception of CD56dim CD62L+ cells. Indeed, only these cells combine the ability to produce interferon (IFN)-gamma after cytokines and proliferate in vivo during viral infection with the capacity to kill and produce cytokines upon engagement of activating receptors. Therefore, CD56dim CD62L+ cells represent a unique subset of polyfunctional NK cells. Ex vivo analysis of their function, phenotype, telomere length, frequencies during ageing as well as transfer experiments of NK cell subsets into immunodeficient mice suggest that CD56dim CD62L+ cells represent an intermediate stage of NK cell maturation, which after restimulation can accomplish multiple tasks and further develop into terminally differentiated effectors.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

9 Samples

Download data: CEL, CHP