http://www.ncbi.nlm.nih.gov/pubmed/27095058
González-Giraldo Y1, Forero DA2, Echeverria V3, Gonzalez J1, Ávila-Rodriguez M4, Garcia-Segura LM5, Barreto GE6.
Abstract
Senescence
plays an important role in neurodegenerative diseases and involves key
molecular changes induced by several mechanisms such as oxidative
stress, telomere shortening and DNA damage. Potential therapeutic
strategies directed to counteract these molecular changes are of great
interest for the prevention of the neurodegenerative process. Telomerase
is a ribonucleoprotein composed of a catalytic subunit (TERT) and a RNA
subunit (TERC). It is known that the telomerase is involved in the
maintenance of telomere length and is a highly expressed protein in
embryonic stages and decreases in adult cells. In the last decade, a
growing number of studies have shown that TERT has neuroprotective
effects in cellular and animal models after a brain injury.
Significantly, differences in TERT expression between controls and
patients with major depressive disorder have been observed. More
recently, TERT has been associated with the decrease in reactive oxygen
species and DNA protection in mitochondria of neurons. In this review,
we highlight the role of TERT in some neurodegenerative disorders and
discuss some studies focusing on this protein as a potential target for
neuroprotective therapies. (We don't need discussion, we need followup research and if we had a strategy we could get somewhere by following a strategy.)
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