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
    Sod2 Superoxide dismutase 2 (Mn) RNA interference of Sod2 results in increased oxidative stress and early-onset mortality in young adults [12456885]. Overexpression of Sod2 by 5-115% decreases lifespan by 4-5% without any compensatory changes in metablic rate, level of physical activity, or the levels of other antioxidants (Sod, Cat, and glutathione) [10545213]. Targeted overexpression of Sod2 in motor neurons alone extends lifespan by 30% [11113599]. Induced overexpression of Sod2 in adult animals extends lifespan up to 37% [12072463]. Overexpression of catalase in combination with SOD2 has no added benefit for lifespan [12072463]. Animals overexpressing SOD2 or catalase do not exhibit a decrease in metabolism as measured by oxgen consumption [12072463]. Sod2 overexpression results in a 20% increase in mean and maximum lifespan [18067683]. Fruit fly
    Mlp84B Muscle LIM protein at 84B RNA interference of Mlp84B specifically in the heart results in bradycardia and heart rthym abnormalities as well as a shorter mean lifespan in males but not in females [18083727]. Fruit fly
    l(3)neo18 lethal (3) neo18 RNA interference of l(3)neo18 in females increases mean lifespan by 14-18% when applied during development and adulthood in the whole organism and by 8-24% when applied in the neurons. The effect is more variable in males. A consistent increase (8-18%) is however observed for whole organisms RNAi in adults [19747824]. l(3)neo18 (alias CG9762) is translational upregulated upon DR. Under rich nutritional conditions lifespan of l(3)neo18 RNAi knockout animals is indistinguishable from wild-type, while upon DR, lifespan extension is diminished in males and females [19804760]. 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
    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
    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
    rho-7 rhomboid-7 rho-7 knockout flies have severe neurological defects and a much reduced lifespan [16713954]. Fruit fly
    Rh2 Rhodopsin 2 Rh2 exhibits a non-coding region difference unique to animals under experimental evolution selected for longevity and it is differentially expressed in head of animals that were selected for longevity [23106705]. Fruit fly
    Loco locomotion defects Reduced expression of Loco due to hetero-deficient results in a 17-20% longer mean lifespan for both male and females, besides the fact that the homozygous deficiency of loco is lethal. Several of these long-lived mutants are more resistant to stresses such as starvation, oxidation and heat. Additionally, mutants have higher Manganese-containing superoxide dismutase (MnSOD) activity, increased fat content an diminished cAMP levels. Loco's RGS domain is required for the regulation of longevity as deletion analysis suggest [21776417]. Fruit fly
    Rbp9 RNA-binding protein 9 Rbp9 mutation significantly decreases longevity with a 33% reduction in median lifespan of males [20589912]. Fruit fly
    Psa Puromycin sensitive aminopeptidase Psa 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 except 50 days [23106705]. Experimental u-regulation of Psa protects against tau-induced neurodegeneration [16950154]. Fruit fly
    Prx5 Peroxiredoxin 5 Prx5 overexpression causes an increase in mean and median lifespan under normal conditions. It also leads to a small increase in maximum lifespan. dprx5(-/-) null mutants are comparatively more susceptible to oxidative stress, have higher incidence of apoptosis, and a shortened mean lifespan, but thee is no significant difference in maximum lifespan (10% survival) [21826223]. Fruit fly
    Eip55E Gamma-Cystathioinase Propargylglycine (PPG) inhibits gamma-cystathioinase, the second enzyme of the trans-sulfuration pathway (TSP). PPG is a specific suicidal inhibitor of gamma-cystathionase Eip55E. Gluthatione (GSH) levels are decreased by PPG administration in flies subjected to DR, whereas there is no effect on fully fed animals. PPG robustly suppresses DR lifespan extension, while longevity of fully fed flies is not affected in different strains. Thus, indicating that the effect of PPG is specific to DR. PPG abrogates changes in lifespan that are normally observed when flies are maintained in different dietary concentrations and compositions [21930912]. Fruit fly
    Prm Paramyosin Prm exhibits a coding region difference unique to animals under experimental evolution selected for longevity and is differentially expressed in the abdomen of for longevity selected lines [23106705]. Fruit fly
    Pka-C1 cAMP-dependent protein kinase 1 PKA-overexpressing flies (hsPKA*/+) have an about 30% extended maximum lifespan [17369827]. Fruit fly
    pex16 peroxin 16 pex16 mutation lead to a reduced mean lifespan of one-third in females and on-fourth in males. The short lifespan can be rescued by the simultaneous overexpression of pex16 in the fat body and differentiated neurons [21826223]. Mutant flies lack normal peroxisomes, have an reduced adult body size (70%-85% smaller than controls) and rozy eyes, show locomotion defects in the development of the nervous system [21826223]. Fruit fly
    Pdf Pigment-dispersing factor Pdf declines with aging. Age-dependent Pdf decline is responsible for the circadian rhythm attenuation [23223368]. Overexpression of Pdf suppresses age-associated changes in the period and strength of free-running locomotor rhythms and amplifies TIM oscillations in many pacemaker neurons in the elder flies [23223368]. Age-associated reduction of Pdf may cause attenuation of intercellular communication in the circadian neuronal network and of TIM cycling, which may result in the age-related rhythm decay [23223368]. 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
    VhaSFD Vacuolar H+-ATPase SFD subunit Overexpression of VhaSFD (from a doxycycline-inducible promoter) results in a 5-10% increase in mean lifespan [12620118]. Fruit fly
    TrxT Thioredoxin T Overexpression of TrxT in neurons increases the level of locomotor activity in aged flies and extends the mean lifespan by 15% [17301052]. Fruit fly
    Trxr-1 Thioredoxin reductase-1 Overexpression of Trxr-1 (alias GSR; glutathione reductase) in transgenic flies results in increased lifespan and oxidative stress resistance, but only under hyperoxia [10506576]. Fruit fly
    to TakeOut Overexpression of to in adult neurons, pericerbral or abdonimal fat body increases male and female lifespan. to overexpression in the adult nervous system, head fat body and abdominal fat body results in 25, 20 and 12-18% increase of mean lifespan. On average the mean lifespan is extended for males and females by 18 and 26%, while maximum lifespan of male and female is increased by 13 and 25% [20519778]. Starvation, DR and many longevity mutants (like Rpd3, Sir2, chico, methusalem) all upregulate takeout (to). to is a secreted potential juvenile hormone binding protein and its induction by starvation is blocked by all arrhythmic central clock mutants [20519778; 20622267]. Fruit fly
    CLU clusterin Overexpression of the secretory form of human Clusterin in fruit flies increases mean lifespan. hClu overexpression flies also have greater tolerance to heat shock, wet starvation, and oxidative stress and the whole body amounts of reactive oxygen species is lower [22465014].CLU was found to be associated with longevity [16804001]. Fruit fly
    Hsp70Bc Heat-shock-protein-70Bb Overexpression of the Hsp70 locus (containing Hsp70Bb and Hsp70Bc) in transgenic flies extends lifespan as much as 7.9% [9363888]. Fruit fly
    Hsp70Bb Hsp70Bb Heat-shock-protein-70Bb Overexpression of the Hsp70 locus (containing Hsp70Bb and Hsp70Bc) in transgenic flies extends lifespan as much as 7.9% [9363888]. Fruit fly
    Factors are an extension of GenAge and GenDR.

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