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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  • Species: + -
  • symbol name observation species
    Sirt2 Decreased expression of Sirt2 by RNA interference causes lethality during development. Silencing in neurons shortened mean lifespan by 20% [17159295]. Fruit fly
    Sirt6 Decreased expression of Sirt6 by RNA interference causes lethality during development. Sirt6 silencing in neurons shortens mean lifespan by 20% [17159295]. Fruit fly
    Aut1 Aut1 depletion form the first day of imaginal stage shortens lifespan by 28% on average in Drosophila and causes morphological behavioural features of premature aging [18219227]. Fruit fly
    CG3776 Both overexpression and underexpression of CG3776 (alias Jhebp29) reduces the mean lifespan, where the reduction in males is slightly higher. The lifespan of male flies with under- and overexpressed CG3776 is reduced by 38.8 and 42.6%, respectively when compared with Oregon R flies.The lifespan of female flies with under- and overexpressed CG3776 is reduced by 31.6 and 35%, respectively when compared to Oregon R flies. Among the males and females, relatively to Oregon R and EP835/CyO, the age-specific survival of EP835/EP835 and EP835/Gal4 is reduced in both log-rank and Wilcoxon tests (P < 0.001); survival of EP835/EP835 and EP835/Gal4 differed using the log-rank-test (male: P<0.001; female: P=0.027) [18275960]. Fruit fly
    kermit The disruption of kermit (alias dGIPC) function results in premature loss of locomotor activity and reduced mean lifespan [21029723]. Fruit fly
    yata yata mutation shortens the maximum lifespan by 68% and results in progressive deterioration of the nervous tissues and aberrant accumulation of Sec23 [19209226]. Fruit fly
    mir-277 Constitutive miR-277 expression shortens lifespan and synthetically lethal with reduced insulin signaling, indicating that metabolic control underlies this phenotype. Transgenic inhibition with a miRNA sponge construct also shortens lifespan [23669073]. miR-277 is downregulated during adult life [23669073]. mir-277 controls branched-chain amino acid catabolism and as a result it can modulate the activity of TOR kinase [23669073]. Fruit fly
    Thor Null mutation in Thor (alias d4E-BP) causes a significant decrease in longevity (-25% median lifespan in males). Thor is strongly upregulated during starvation. foxo and Thor null mutants are compromised in stress resistant. Stress resistance of foxo null mutants is rescued by Thor overexpression [16055649]. Thor is upregulated on the protein level in a foxo-independent manner upon DR, while it is transcriptional induced in a foxo-dependent fashion by starvation. Thor null mutants cancel out DR-induced lifespan extension, because mutants exhibit a diminished change in lifespan when nutrient conditions were varied. Ubiquitously expression of Thor rescued DR response in females and males. Thor null mutants have a wild-type similar reduction in egg production upon DR. Ubiquitously overexpression of wild-type Thor causes no change under AL, but an activated allele (with more than 3-fold increased binding activity to delF4E) significantly extends lifespan of females (weak allele) and females as well as males (strong allele). Mean lifespan is extended by 11 to 40%. Median lifespan of males and females is enhanced by by 11 and 22%, respectively. Maximum lifespan is extended by 16 and 18% for males and females, respectively. Under DR (0.25% YE) there is no lifespan extension, beyond the effect of DR alone, in all (wild-type, weak and strong) Thor alleles [19804760]. Lifespan of animals with increased Pten and 4E-BP activity in muscle exhibit and extended mean and maximum lifespan by 20% and 15.8% [21111239]. Fruit fly
    p53 Overexpression of wild-type p53 during adult life has no significant effect on lifespan. Expression of dominant-negative versions of p53 in adult neurons extends lifespan by 58% in females and by 32% in males and increases resistance to genotoxic stress and resistance to oxidative stress, but not to starvation or heat stress, while not affecting egg production or physical activity. Dominant negative p53 expression cancels out lifespan extension effect of DR, low calorie-food (5% SY). Muscle or fat body specific expression of a dominant negative form of p53 as well as globally lack of p53 decreases lifespan [16303568]. Loss of p53 activity slightly shortens the lifespan. Mutants that lack p53 survive well up to 50 days, but mortality rate increases relative to wild-type at later ages. p53 mutant animals are extremely sensitive to irradiation [12935877]. Expression of dominant-negative (DN) form of p53 in adult neurons, but not in muscle or fat body cells, extends median lifespan by 19% and maximum lifespan by 8%. The lifespan of dietary-restricted flies is not further extended by simultaneously expressing DN-DMp53 in the nervous system, indicating that a decrease in Dmp53 activity may be part of the DR lifespan-extending effect. Selective expression of DN-Dmp53 in only the 14 insulin-producing cell (IPCs) in the brain extends lifespan to the same extent as expression in all neurons and this lifespan extension is not additive with DR [17686972]. Fruit fly
    Atg8a Autophagy-related 8a Mutations in Atg8a results in reduced lifespan and increased sensitivity to oxidative stress while enhanced expression in older fly brains extends average adult lifespan by 56% and promotes resistance to oxidative stress [18059160]. Atg8a mutation reduces the maximum lifespan by 25% under starvation conditions [17617737]. Loss-of-function mutation in Atg8a reduces mean lifespan by 11 - 25% and maximum lifespan by 3 - 22% [17435236]. Fruit fly
    Atg7 Autophagy-specific gene 7 Knockouts of Atg7 are short-lived with a 30% reduction in maximum lifespan and are hypersensitive to nutrient and oxidative stress [18056421; 19550147]. Fruit fly
    bsk basket RNA interference of bsk in intestinal stem cells, results in short lived mutants with impaired intestinal homeostasis and tissue regeneration. The mean lifespan of males is 16.4% lower and those of female is reduced by 10.2% [20976250]. Fruit fly
    cm carmine Loss-of-function mutation in cm reduces mean lifespan by 43 - 53% and maximum lifespan by 40 - 44% [17435236]. Fruit fly
    car carnation Loss-of-function mutation in car results in reduction of mean lifespan by 34 - 63% and maximum lifespan by 28 - 29% [17435236]. Fruit fly
    cert ceramide transfer protein cert mutants exhibit a shortened lifespan accompanied by enhanced oxidative damage to cellular proteins and metabolic compromise, such as increasing glucose levels, reminiscent of premature aging [17592126]. Fruit fly
    Mnt CG13316-PC, isoform C A dMnt null allele results in flies with larger cells, increased weight, and decreased lifespan [16055719]. Fruit fly
    Akt1 CG4006 gene product from transcript CG4006-RA RNA interference of Akt1 in intestinal stem cells, results in impaired regeneration of the intestinal epithelium and a short lifespan. In males and females on mean lifespan is 11.4% and 7.4% lower [20976250]. Fruit fly
    Cdk5 Cyclin-dependent kinase 5 Cdk5 loss-of-function mutations result in defective axon guidance, age-dependent behavioral deficits and reduced lifespan by about one third [17368005]. Fruit fly
    DLP Daxx-like protein DLP mutants have a 20% shorter mean lifespan and reduced female fertility [17933869]. Fruit fly
    dor deep orange Loss-of-function mutation in dor reduces mean lifespan by 70 - 81% and maximum lifespan by 71 - 78% [17435236]. Fruit fly
    Dcr-2 Dicer-2 Median lifespan of homozyogous and transheterozyogous Dcr-2 mutants is reduced by 18-36% in males and by 27-36% in females. Dcr-2 loss changes the expression of mostly metabolic genes implicated in stress resistance and aging. Dcr-2 mutants are hypersensitive to oxidative, endoplasmic reticulum, starvation and cold stress as well as abnormal lipid and carbohydrate metabolism [21889502]. Fruit fly
    DJ-1alpha DJ-1α RNA interference of DJ-1alpha shortens maximum lifespan by 13% and results in increased sensitivity to oxidative stress and motor impairments [17651920]. Fruit fly
    dj-1beta dj-1β Loss of function mutation in dj-1beta shortens maximum lifespan by 40% and results in increased sensitivity to oxidative stress and motor impairments [17651920]. Fruit fly
    Dys Dystroglycan Loss of dys function in the heart leads to an age-dependent disruption of the myofibrillar organization within the myocardium as well as to alterations in cardiac performance. dys RNAi-mediated knockdown in the mesoderm also shortens lifespan. Mesodermal dys knockout results in a morderate maximum lifespan reduction (13%), but not when exclusively targeted to the heart. In contrast, half of the transheteozygous DysExel618/Dyskx43 deficiency flies die at 29 days compared to 63 days in controls. This indicates that a moderate dye loss-of-function in all muscles, but not in just the heart, reduces the normal lifespan [18221418]. Fruit fly
    elav embryonic lethal abnormal vision elav mutation significantly decreases the lifespan. Median lifespan in males is 66% lower [20589912]. Fruit fly
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    • 25 of 50 factors
    Factors are an extension of GenAge and GenDR.

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