Restraints
Recently in 2015, the scientists at the Agency for Science, Technology & Research (A*STAR) successfully established a model of Hutchinson-Gilford progeria syndrome. The study conducted by this organization proposed a model which implies that progerin is linked to telomeres. Progerin induces a reduction in heterochromatin, a tightly packed form of DNA, making telomeres in the cell more fragile and susceptible to damage. The damaged telomeres in turn trigger premature cellular aging. This model is radically different from the one believed earlier – the gene progerin caused the nucleus to be deformed, thereby weakening the ability of cells to divide and proliferate. The altered progerin protein makes the nuclear envelope unstable and progressively damages the nucleus, making cells more likely to die prematurely.
Researchers are working to determine how genetic changes further leading to the characteristic features of Hutchinson-Gilford progeria syndrome. Continuous advancement in research with increased understanding of the human aging will provide valuable insights and aid in the treatment of this disease.
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