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Artificial Antigen Presenting Cell aAPC Mediated Activation and Expansion of Natural Killer T Cells
Published on: December 29, 2012
Viral- and tumor-reactive natural killer cells
Jianhua Yu1, Michael A Caligiuri2
1Department of Hematology & Hematopoietic Cell Transplantation, City of Hope National Medical Center, Los Angeles, CA 91010, USA; Hematologic Malignancies Research Institute, City of Hope National Medical Center, Los Angeles, CA 91010, USA; Department of Immuno-Oncology, City of Hope, Los Angeles, CA 91010, USA; City of Hope Comprehensive Cancer Center, Los Angeles, CA 91010, USA.
Natural killer (NK) cells have new roles in immunity. Understanding their recognition and response mechanisms, like Fc-bridged cellular cytotoxicity (FcBCC) and myeloid leukemia interactions, improves disease treatment.
Area of Science:
- Immunology
- Cellular Biology
- Oncology
Background:
- Natural killer (NK) cells are crucial for antiviral and antitumoral immunity.
- Known NK cell functions include antibody-dependent cellular cytotoxicity (ADCC) and direct ligand interactions for eliminating infected or malignant cells.
Purpose of the Study:
- To review recently described mechanisms of NK cell recognition and response.
- To highlight novel NK cell functions beyond established pathways.
Main Methods:
- Review of existing literature on NK cell recognition and response.
- Description of two specific NK cell mechanisms: Fc-bridged cellular cytotoxicity (FcBCC) and responses to myeloid leukemia.
Main Results:
- NK cells utilize non-specific Fc-bridged cellular cytotoxicity (FcBCC) to combat primary herpes virus infections.
- A distinct subset of NK cells exhibits novel phenotypic and functional responses when encountering myeloid leukemia.
Conclusions:
- NK cell-mediated immunity involves additional, recently identified recognition and response pathways.
- Further understanding of these mechanisms can enhance NK cell-based strategies for disease prevention and treatment.
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