Aging Impairs T Cell Responses in Organ Transplantation
Author Information
Author(s): Shen Hua, Tesar Bethany M., Du Wei, Goldstein Daniel R.
Primary Institution: Yale University School of Medicine
Hypothesis
Does aging impair the ability of donor dendritic cells or recipient immunity to prime alloimmune responses to organ transplantation?
Conclusion
Aging impairs recipient responses, both T cell intrinsic and extrinsic, in response to organ transplantation.
Supporting Evidence
- Aging impairs the host environment to expand and activate antigen specific CD8+ T cells.
- Aging does not impair the ability of donor dendritic cells to prime alloimmune responses.
- Aged T cells show delayed allograft rejection compared to young T cells.
Takeaway
As people get older, their immune system doesn't work as well when they get organ transplants, making it harder for their body to accept the new organ.
Methodology
The study used murine experimental models to assess the effects of aging on T cell responses and dendritic cell function in organ transplantation.
Limitations
The study primarily used murine models, which may not fully replicate human responses.
Participant Demographics
Aged (18-22 months) and young (2-4 months) mice were used in the experiments.
Statistical Information
P-Value
p<0.02
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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