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- How Natural Killer Cells Recognize Self
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1. Education and tuning of natural killer cells
- Prof. Eric Vivier
- Dr. Sophie Ugolini
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2. Disarming of autoreactive NK cells
- Prof. David Raulet
- Development and Function of Natural Killer Cell Subsets
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3. Natural killer cell development
- Dr. Francesco Colucci
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4. Natural killer cells: development, diversity and applications to human disease
- Prof. Mike Caligiuri
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5. NK cells in viral immunity
- Prof. Lewis Lanier
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6. NK cell subsets and interactions with dendritic cells
- Prof. Christian Münz
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7. Immunodeficiencies and genetic mutations affecting NK cells in humans
- Dr. Jordan Orange
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8. Epigenetic control of antiviral NK cells
- Prof. Joseph Sun
- Natural Killer Cell Receptors and Signaling
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9. Evolution of NK cell receptors
- Prof. John Trowsdale
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11. Mechanisms of natural killer cell cytotoxicity
- Prof. Carsten Watzl
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12. NK cell signaling to cytotoxicity - part I
- Prof. Dan Billadeau
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13. NK cell signaling to cytotoxicity - parts II & III
- Prof. Dan Billadeau
- Archived Lectures *These may not cover the latest advances in the field
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14. NK cells in viral immunity
- Prof. Lewis Lanier
Printable Handouts
Navigable Slide Index
- Introduction
- NK cell functions
- NK cell recognition
- MHC deficient cells are susceptible to NK attack
- NK cells destroy cells lacking MHC molecules
- MHC-specific inhibitory receptors
- Basis of missing self recognition
- The "at least one" model of NK cell self tolerance
- An alternative view of NK cell self tolerance
- MHC-I deficient NK impaired in tumor cell killing
- MHC-I deficient NK impaired in functional assays
- NK tolerance in MHC deficient and normal animals
- Receptors for self MHC in H-2b mice
- NK cells lacking H-2b-specific inhibitory receptors
- NK lacking MHC receptors are self tolerant
- NK lacking MHC receptors are hyporesponsive
- Evidence from the absence of target cells
- Nature of hyporesponsive NK cells
- Hyporesponsive NK cells are mature cells
- Subsets of NK cells based on specificity
- Different routes to self-tolerance
- How is hyporesponsiveness imposed?
- Two models for induction of NK cell self tolerance
- Predictions of a mixed chimera
- Fetal liver chimeras to test models of tolerance
- MHC-I+/MHC-I-/- mixed fetal liver chimeras
- Chimeric mice fail to reject class I-deficient cells
- Data to date support disarming model
- Different receptors specific for self MHC
- Binary state or rheostat?
- Responsiveness of C+/I+ NK cells
- Intrinsic responsiveness of NK cells
- Receptor co-expression enhances responsiveness
- Granule exocytosis and number of self receptors
- Tuning NK cell responsiveness
- Conclusions
- Acknowledgements
Topics Covered
- NK cell "education"
- NK cells in normal animals attack cells that lack some or all self MHC class I molecules
- NK cells that lack inhibitory receptors for self MHC class I are rendered hyporesponsive and self tolerant
- Hyporesponsiveness of NK cells is induced by target cells lacking MHC I, as in a mixed chimera
- Responsiveness of NK cells varies depending on how many MHC I-specific receptors they express
- NK cell education ensures that NK cells are optimally responsive yet not autoreactive
Links
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Talk Citation
Raulet, D. (2009, September 23). Disarming of autoreactive NK cells [Video file]. In The Biomedical & Life Sciences Collection, Henry Stewart Talks. Retrieved February 5, 2025, from https://doi.org/10.69645/MHES6100.Export Citation (RIS)
Publication History
Financial Disclosures
- Prof. David Raulet has not informed HSTalks of any commercial/financial relationship that it is appropriate to disclose.