Implications of altered apoptosis in diabetes mellitus and autoimmune disease

Apoptosis : an International Journal on Programmed Cell Death
T Hayashi, D L Faustman

Abstract

Lymphocyte development, selection and education represent tightly controlled immune processes that normally prevent autoimmunity. Lymphocyte development requires cellular selection through apoptosis to remove potentially autoreactive cells. Dysregulated apoptosis, both interrupted as well as accetuated apoptosis, are now demonstrated as central defects in diverse human and murine autoimmune disease. In murine models of autoimmune lupus, mutations in cell death receptor CD95 (Fas) and its ligand CD95L (FasL) have been identified; these errors create a lymphoid system resistant to apoptosis. In contract, select lymphoid subpopulations of auto immune diabetic mice have accelerated apoptosis due to faulty activation of transcription factor NF-kappaB that normally protects against apoptotic death. The genetic basis of interrupted NF-kappaB in diabetes is a gene defect in an essential subunit of the proteasome. Although no specific gene in most common forms of human autoimmune disease has been identified, functional assays repeatedly demonstrate apoptotic defects in multiple cellular signaling pathways for cell death.

Citations

Feb 28, 2004·Diabetes·Urs ChristenMatthias G von Herrath
Aug 19, 2006·Circulation Research·Saul R Powell
May 17, 2003·European Journal of Ophthalmology·A TempestiniS Capaccioli

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Autoimmune diseases occur as a result of an attack by the immune system on the body’s own tissues resulting in damage and dysfunction. There are different types of autoimmune diseases, in which there is a complex and unknown interaction between genetics and the environment. Discover the latest research on autoimmune diseases here.

Apoptosis

Apoptosis is a specific process that leads to programmed cell death through the activation of an evolutionary conserved intracellular pathway leading to pathognomic cellular changes distinct from cellular necrosis

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