Related Experiment Video

Updated: Mar 28, 2026

Measurement of Natural Killer Cell-Mediated Cytotoxicity and Migration in the Context of Hepatic Tumor Cells
06:55

Measurement of Natural Killer Cell-Mediated Cytotoxicity and Migration in the Context of Hepatic Tumor Cells

Published on: February 22, 2020

19.7K

Natural cytotoxicity receptor splice variants orchestrate the distinct functions of human natural killer cell

Johan Siewiera1,2,3, Jordi Gouilly1,2,3, Hocine-Rachid Hocine4

  • 1INSERM UMR 1043, Centre de Physiopathologie de Toulouse Purpan (CPTP), Toulouse F-31300, France.

Nature Communications
|December 16, 2015
PubMed

Insights

Natural killer (NK) cell receptors NKp46, NKp44, and NKp30 have splice variants with unknown roles. This study shows these variants differentiate distinct NK cell subsets, impacting pregnancy and immunity.

Area of Science:

  • Immunology
  • Cell Biology
  • Reproductive Biology

Background:

  • Natural cytotoxicity receptors (NCRs) like NKp46, NKp44, and NKp30 are crucial for natural killer (NK) cell function.
  • NK cell genes transcribe into multiple splice variants, but their physiological significance remains largely unexplored.

Purpose of the Study:

  • To investigate the differential expression and functional relevance of NKp30 and NKp44 splice variants in distinct human NK cell subsets.
  • To determine if the decidual microenvironment influences NK cell splice variant profiles and function.

Main Methods:

  • Comparative analysis of NKp30/NCR3 and NKp44/NCR2 splice variant expression in decidual NK (dNK) cells and peripheral blood NK (pNK) cells.
  • In vitro experiments exposing pNK cells to decidual cytokines to assess changes in splice variant profiles and cellular functions.

Main Results:

  • Decidual NK (dNK) cells and peripheral blood NK (pNK) cells exhibit distinct expression patterns of NKp30/NCR3 and NKp44/NCR2 splice variants.
  • Exposure to decidual microenvironment-enriched cytokines induced a shift in pNK cell splice variant profiles towards the dNK cell phenotype.
  • This phenotypic switch in pNK cells correlated with reduced cytotoxic activity and significant alterations in their secretome, characteristic of the decidual NK cell phenotype.

Conclusions:

  • NKp30/NCR3 and NKp44/NCR2 splice variants serve as key markers for functionally distinct NK cell subsets.
  • The decidual microenvironment actively shapes NK cell function through modulation of NCR splice variants, highlighting their physiological importance in pregnancy.
  • This study provides the first conclusive evidence for the physiological relevance of natural cytotoxicity receptor splice variants in immune regulation.

More Related Videos

Flow Cytometry-based Assay for the Monitoring of NK Cell Functions08:17

Flow Cytometry-based Assay for the Monitoring of NK Cell Functions

Published on: October 30, 2016

22.2K
Two Flow Cytometric Approaches of NKG2D Ligand Surface Detection to Distinguish Stem Cells from Bulk Subpopulations in Acute Myeloid Leukemia05:24

Two Flow Cytometric Approaches of NKG2D Ligand Surface Detection to Distinguish Stem Cells from Bulk Subpopulations in Acute Myeloid Leukemia

Published on: February 21, 2021

4.9K

Related Concept Videos

Cytotoxic T Cells-mediated Immune Response01:27

Cytotoxic T Cells-mediated Immune Response

Cytotoxic T cells are a vital component of the immune system. They have the remarkable ability to identify and target antigens on infected or abnormal cells. These antigens often originate from intracellular pathogens such as viruses or abnormal proteins cancer cells produce.
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
8.2K
Cells of the Innate Immune Response01:28

Cells of the Innate Immune Response

The innate immune response is an immediate and non-specific response against pathogens, acting swiftly to prevent the spread of infections. The primary cells involved in this response are phagocytes and natural killer (NK) cells.
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
10.4K
RNA Splicing01:32

RNA Splicing

Splicing is the process by which eukaryotic RNA is edited before its translation into protein. The RNA strand transcribed from eukaryotic DNA is called the primary transcript. The primary transcripts that become mRNAs are called precursor messenger RNAs (pre-mRNAs). Eukaryotic pre-mRNA contains alternating sequences of exons and introns. Exons are nucleotide sequences that code for proteins, whereas introns are the non-coding regions. In RNA splicing, introns are removed and exons are bonded...
61.4K
Diversity of Antigen Receptors01:28

Diversity of Antigen Receptors

Antigen receptors are essential components of the immune system crucial in defending the body against foreign invaders. These receptors are present on the surface of B and T cells, enabling them to recognize antigens and mount an appropriate immune response.
Before encountering any antigen, lymphocytes express these receptors. On B cells, the antigen receptor is a membrane-bound antibody molecule called BCR; on T cells, it is a T cell receptor or TCR. B and T cell receptors are composed of two...
2.1K
Immune Surveillance by NK Cells and Phagocytes01:25

Immune Surveillance by NK Cells and Phagocytes

Immune surveillance is an integral part of the innate immune system, involving the continuous monitoring of peripheral tissues to detect and respond to pathogens, infected cells, or cancerous cells. This surveillance is conducted primarily by natural killer (NK) cells and phagocytes, which employ distinct but complementary mechanisms to identify and eliminate threats.
Natural Killer Cells: The Fast Responders
NK cells are large granular lymphocytes found in the blood and lymphatic system. These...
9.5K
Alternative RNA Splicing02:18

Alternative RNA Splicing

Alternative RNA splicing is the regulated splicing of exons and introns to produce different mature mRNAs from a single pre-mRNA. Unlike in constitutive splicing where a single gene produces a single type of mRNA, alternative splicing allows an organism to produce multiple proteins from a single gene and plays an important role in protein diversity.
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
26.3K