Title:Key miRNAs in Modulating Aging and Longevity: A Focus on Signaling
Pathways and Cellular Targets
Volume: 15
Author(s): Aliabbas Zia, Tahereh Farkhondeh, Faezeh Sahebdel, Ali Mohammad Pourbagher-Shahri and Saeed Samarghandian*
Affiliation:
- Noncommunicable Diseases Research Center, Neyshabur University
of Medical Sciences, Neyshabur, Iran
Keywords:
MiRNAs, aging, longevity, age-related diseases, senescence, lifespan.
Abstract: Aging is a multifactorial process accompanied by gradual deterioration of most biological
procedures of cells. MicroRNAs (miRNAs) are a class of short non-coding RNAs that post-transcriptionally
regulate the expression of mRNAs through sequence-specific binding, contributing to
many crucial aspects of cell biology. Several miRNAs are expressed differently in various organisms
through aging. The function of miRNAs in modulating aging procedures has been disclosed
recently with the detection of miRNAs that modulate longevity in the invertebrate model organisms
through the IIS pathway. In these model organisms, several miRNAs have been detected
to both negatively and positively regulate lifespan via commonly aging pathways. miRNAs modulate
age-related procedures and disorders in different mammalian tissues by measuring their tissue-
specific expression in older and younger counterparts, including heart, skin, bone, brain, and
muscle tissues. Moreover, several miRNAs have contributed to modulating senescence in different
human cells, and the roles of these miRNAs in modulating cellular senescence have allowed illustrating
some mechanisms of aging. The review discusses the available data on the role of miRNAs
in the aging process, and the roles of miRNAs as aging biomarkers and regulators of longevity in
cellular senescence, tissue aging, and organism lifespan have been highlighted.