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Expression patterns of NKG2A, KIR, and CD57 define a process of CD56dim NK-cell differentiation uncoupled from NK-cell education

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TLDR
It is shown that CD56(dim) NK cells continue to differentiate, and the associated functional imprint, occurs independently of NK-cell education by interactions with self-human leukocyte antigen class I ligands and is an essential part of the formation of human NK- cell repertoires.
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This article is published in Blood.The article was published on 2010-11-11. It has received 622 citations till now. The article focuses on the topics: Natural killer cell & Lymphokine-activated killer cell.

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Guidelines for the use of flow cytometry and cell sorting in immunological studies (second edition)

Andrea Cossarizza, +462 more
TL;DR: These guidelines are a consensus work of a considerable number of members of the immunology and flow cytometry community providing the theory and key practical aspects offlow cytometry enabling immunologists to avoid the common errors that often undermine immunological data.
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Expansion of a unique CD57+NKG2Chi natural killer cell subset during acute human cytomegalovirus infection

TL;DR: The preferential expansion of a unique subset of NK cells coexpressing the activating CD94–NKG2C receptor and CD57 in CMV+ donors is demonstrated and it is proposed that CD57 might provide a marker of “memory” NK cells that have been expanded in response to infection.
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CD57 defines a functionally distinct population of mature NK cells in the human CD56dimCD16+ NK-cell subset

TL;DR: A combination of a mature phenotype, a higher cytotoxic capacity, aHigher sensitivity to stimulation via CD16, with a decreased responsiveness to cytokines, and a decreased capacity to proliferate suggest that CD57(+) NK cells are highly mature and might be terminally differentiated.
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Cytomegalovirus infection drives adaptive epigenetic diversification of NK cells with altered signaling and effector function.

TL;DR: The emergence of diverse subsets of human NK cells selectively lacking expression of signaling proteins after human cytomegalovirus (HCMV) infection is described, uncovering a spectrum of epigenetically unique adaptive NK cell subsets that diversify in response to viral infection and have distinct functional capabilities compared to canonical NK cells.
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Cytomegalovirus reactivation after allogeneic transplantation promotes a lasting increase in educated NKG2C natural killer cells with potent function

TL;DR: The kinetics of the NK-cell response to CMV reactivation in human recipients after hematopoietic cell transplantation is characterized to support the emerging concept that CMV-induced innate memory-cell populations may contribute to malignant disease relapse protection and infectious disease control long after transplantation.
References
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Journal ArticleDOI

Functions of natural killer cells

TL;DR: Although NK cells might appear to be redundant in several conditions of immune challenge in humans, NK cell manipulation seems to hold promise in efforts to improve hematopoietic and solid organ transplantation, promote antitumor immunotherapy and control inflammatory and autoimmune disorders.
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Nk cell recognition

TL;DR: The structure, function, and ligand specificity of the receptors responsible for NK cell recognition are reviewed and the role of EMT inNK cell recognition is reviewed.
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Adaptive immune features of natural killer cells

TL;DR: A mouse model of cytomegalovirus infection is used to show that, like T cells, NK cells bearing the virus-specific Ly49H receptor proliferate 100-fold in the spleen and 1,000- fold in the liver after infection.
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Human natural killer cells: a unique innate immunoregulatory role for the CD56bright subset

TL;DR: It is proposed that human CD56bright NK cells have a unique functional role in the innate immune response as the primary source of NK cell–derived immunoregulatory cytokines, regulated in part by differential monokine production.
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Licensing of natural killer cells by host major histocompatibility complex class I molecules

TL;DR: It is demonstrated that NK cells acquire functional competence through ‘licensing’ by self-MHC molecules, which results in two types of self-tolerant NK cells—licensed or unlicensed—and may provide new insights for exploiting NK cells in immunotherapy.
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