Plasmodium falciparum-Infected Erythrocytes and IL-12/IL-18 Induce Diverse Transcriptomes in Human NK Cells: IFN-α/β Pathway versus TREM Signaling Transcriptome of NK Cells
2011

How Malaria Affects Immune Cells

Sample size: 3 publication 10 minutes Evidence: moderate

Author Information

Author(s): Grangeiro de Carvalho Elisandra, Bonin Michael, Kremsner Peter G., Kun Jürgen F. J.

Primary Institution: Institute for Tropical Medicine, University of Tübingen, Tübingen, Germany

Hypothesis

The study investigates how Plasmodium falciparum-infected erythrocytes influence the gene expression of human NK cells.

Conclusion

The study found that P. falciparum parasites induce a distinct pattern of gene expression in NK cells, primarily related to type I interferon signaling.

Supporting Evidence

  • P. falciparum-infected erythrocytes significantly modulated gene expression in NK cells.
  • 183 genes were up-regulated in NK cells after exposure to iRBCs.
  • IL-12 and IL-18 treatment resulted in the regulation of 576 NK genes.

Takeaway

When malaria parasites infect red blood cells, they change how immune cells called NK cells behave, which might help us understand how to fight malaria better.

Methodology

Microarray analysis was conducted on NK cells from healthy donors co-cultured with P. falciparum-infected erythrocytes.

Potential Biases

Potential donor-related variability in NK cell responses may affect the generalizability of the findings.

Limitations

The study only examined NK cell responses at a single time point and with a limited number of donors.

Participant Demographics

Three healthy adult donors with no prior exposure to Plasmodium parasites.

Statistical Information

P-Value

<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0024963

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