Factors

We need to know every factor which determines lifespan.

Lifespan factors often but not always originate from defined genetic elements. They are not just genes, by definition they can be anything for which a Classifications schema can be build for that is related to the regulation of lifespan, such entities may include Single-Nucleotide Polymorphism, transcript variants, proteins and their complexes, compounds (i.e. small molecules like metabolites and drugs), etc. A factor should be based on a defined molecular entity or genomic position and been classified. It shall be highly flexible and scalable Concept.

While individual lifespan factors within each species or precise defined molecular entities will be captured within the Lifespan App, Data Entries of the Data App may summarize for instance the relevance of each factor class (e.g. homologous group; chemical derivate of related structure and properties, etc.) as well as draw overall conclusions. o

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  • symbol name observation species
    EXO1 exonuclease 1 The rs1776180 C allele in the promoter of EXO1 is significantly enriched in female Germans centenarians and this can be replicated in 445 female French centenarians. The C allele leads to the loss of binding site for the basic helix-loop-helix transcription factor E47, resulting in higher EXO1 expression [19698732].EXO1 was found to be associated with longevity [19698732]. EXO1 was not found to be associated with longevity [23770741]. Human
    MAPK1 mitogen-activated protein kinase 1 Overexpression of human MAPK1 (alias ERK2) confers resistance to heat shock and oxidative stress extends median chronological lifespan by 24% and was statistically non-addative with cyr1-1 mutation [17662940].MAPK1 was not found to be associated with longevity [23020224]. MAPK1 was found to be associated with longevity [23020224]. Human
    WRN Werner syndrome, RecQ helicase-like Mutation in WRN causes Werner Syndrome which characteristics includes prematurely aged facies, scleroderma-like skin changes, cataracts, arteriosclerosis, subcutaneous calcification, and diabetes mellitus [McKusick et al. 1963; 5327241]. Inheritance is autosomal recessive and malignancy is frequent. THe frequency is 3 per million individuals in Japan [7460386]. Cells from a Werner heterozygote exit the cell cycle at a faster rate than do normal cells [8265666]. Loss of WRN promoter aberrant mitotic recombination [11316787]. The single nucleotide polymorphism rs1800392 in WRN has been associated with exceptional longevity in a plethora of genetic signatures [22279548]. WRN was found to be associated with longevity [10069711; 20855428; 20855428; 20855428 ;17903295; 22406557; 16405962; 16405962; 16405962; 20855428; 20855428; 20855428; 22279548]. WRN was found to be associated with longevity [24244950]. Human
    INS insulin Expression of human insulin under an inducible heat shock promoter increases nematode lifespan by 25% and is also able to enhance the lifespan of daf-2 mutants [11274053]. INS was found to be associated with longevity [22406557; 19367319; 17989723; 19489743]. Human
    TERT telomerase reverse transcriptase Telomerase-expressing cells (human foreskin fibroblasts, retinal pigment epithelial cells) maintain normal length of telomeres and continue to divide vigorously [9454332]. Cells expression telomerase have reduced staining for beta-galactosidase (a biomarker of cellular senescence) [9501072]. TERT expression is also able to prevent the accelerated replicative senescence observed in cells taken from Werner's patients [10615119]. A haplotype of TERT was correlated with both longer both longer telomere length and exceptional longevity. Mutations in TERT were overpresented in Ashkenazi centenarians [19915151].TERT was not found to be associated with longevity [22136229]. TERT was found to be associated with longevity [23562826]. Human
    GH1 growth hormone 1 Mean lifespan in untreated, affected individuals homozyogus for a deletion at the GH1 locus is significantly shorter (P < 0.05) than in affected siblings or the general population. Individuals homozygous for GH1 deletion demonstrate hereditary dwarfism [12915652]. GH1 was found to be associated with longevity [15771611]. Human
    ATM ataxia telangiectasia mutated Individuals with ataxia-telangiectasia (AT) have a decreased lifespan, with a maximum of 52 years [3864931].ATM was found to be associated with longevity [22960875].ATM was found to be associated with longevity [20816691]. ATM was found to be associated with longevity [22960875]. ATM was found to be associated with longevity [22960875]. Human
    Cisd2 CDGSH iron sulfur domain 2 Cisd2 knockouts expire premature ageing and reduced lifespan [19451219]. A persistent level of Cisd2 achieved by transgenic expression extends mean, median and maximum lifespan without any apparent deleterious side effects [22661501]. House mouse
    SNCA synuclein, alpha (non A4 component of amyloid precursor) Transgenic lines overexpressing either human wild-type or mutant (A53T) forms of the SNCA (alpha-synclein) gene under a pan-neuronal promoter live on average about 25% longer, even in weak (m577) and strong (e1370) daf-2 mutant backgrounds, and exhibited decreased pharyngeal pumping and egg-laying. Wild-type SNCA crossed into eat-2(ad1113) does not significantly effect lifespan compared to that of the background strain. Pumping rate in wild-type SCNA and A53T SCNA overexpression mutants were less than control already at day 1 of adulthood. The attenuation of lifespan exptesion by SNCA overexpression by growing on thick bacterial lawns, suggests that DR may explain some fo the effects on lifespan. SCNA overexpression increases average lifespan by 21.3% (wild-type) and 16.3% (A53T) [16782295]. Mutation of SCNA (alias alpha synclein) is associated with Parkinson's disease [9197268], which is characterized with resting tremor, rigidity bradykinesia and posural instability that are associated with selective neurodegeneration of the pigmented neurons in the brain stem (substantia nigra and locus coerues) and the presence of intracytoplasmic inclusion bodies (Lewy bodies) [Yamamura et al. 1973]. The mutated protein (Ala53Thr or Ala30Pro) may misfold, aggregate and resist degradation [11433374].SNCA was found to be associated with longevity [22912757]. SNCA was not found to be associated with longevity [22912757]. Human
    Cct1 CTP:phosphocholine cytidylyltransferase 1 Overexpression of Cct1 from a doxycycline-inducible promoter results in a 6 - 8% increase in mean lifespan (in the PdL x rtTA; Oregon-R x rtTA strain) [12620118]. Cct1 exhibits a non-coding region difference unique to animals under experimental evolution selected for longevity and is upregulated in head of animals that were selected for longevity at all ages beyond the day of eclosion [23106705]. Fruit fly
    • 10 factors
    Factors are an extension of GenAge and GenDR.

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