Definition
Graft-versus-host disease (GVHD) is a major complication from allogeneic hematological stem cell transplantation. It is a systemic inflammatory condition due to attack of host tissue by immunocompetent cells from the donor (Albert et al. 2008).
Etiology
GVHD is the recognition of allogeneic differences and destruction of host peptides by immune cells of the donor. Activation of donor immune cells leads to secretion of IL-2, resulting in clonal expansion and proliferation of T lymphocytes (Albert et al. 2008).
Acute GVHD is due to conditioning regimen (radiation and/or chemotherapy) that damages host tissue (Albert et al. 2008). This leads to production of pro-inflammatory cytokines such as IL-1 and TNF-α that increase expression of human leukocyte antigen (HLA) alloantigens and adhesion molecules on the surface of host cells, activating donor type 1 helper T cell (Albert et al. 2008).
Chronic GVHD is predominantly a type 2 helper T cell response with lymphoproliferation,...
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References
Albert DM, Miller JW et al (2008) Albert & Jakobiec’s principles & practice of ophthalmology, 3rd edn. Saunders, Philadelphia, pp 4821–4830
Hasanain S, Antin JH, Dana R (2013) Ocular graft-versus-host disease: a review. Surv Ophthalmol 58(3):233–251
Hessen M, Akpek EK (2012) Ocular graft-versus-host disease. Curr Opin Allergy Clin Immunol 12(5):540–547
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Zhao, J. (2014). Graft-Versus-Host Disease: Overview. In: Schmidt-Erfurth, U., Kohnen, T. (eds) Encyclopedia of Ophthalmology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-35951-4_740-1
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DOI: https://doi.org/10.1007/978-3-642-35951-4_740-1
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Publisher Name: Springer, Berlin, Heidelberg
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