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
    (R)-N-(2-heptyl)-N-methylpropargylamine Addition of 0.66 ng/fly/day (R)-N-(2-heptyl)-N-methylpropargylamine to a sucrose-based diet resulted in no significant effect on lifespan, but lifespan reduction due to galactose feeding is partially suppressed by supplementation with (R)-deprnyl or (R)-N-(2-heptyl)-N-methylpropargylamine [9972869]. Fruit fly
    14-3-3epsilon CG31196 gene product from transcript CG31196-RA Loss of 14-3-3ε results in increased stress-induced apoptosis, growth repression and extended lifespan of flies, in a foxo-dependent manner. Mean lifespan of males and females is increased by 25% and 49%, respectively. Increased 14-3-3ε expression also reverts foxo-induced growth defects. No effect of lifespan is observed when overexpressing 14-3-3ε in adipose tissue, indicating that endogenous foxo activity in this tissue is low under normal conditions [18665908]. Fruit fly
    Akh Adipokinetic hormone Knockdown of the adipokinetic hormone (Akh) by RNAi (with an RU486-inducible and ubiquitously expressing Actin 5C-GS Gal4 strain) does not by itself affect lifespan, but significantly inhibits DR-dependent increase in lifespan across a range of yeast concentrations in both females and males. While control females and males exhibit a 113%/22% increase in lifespan under DR, upon Akh inhibition there was a significant reduction in lifespan extension with DR (52%/5%). Global Akh knockdown reduces starvation resistance by 24% upon DR, but no significant change upon AL. Also Akh RNAi repressed the DR-dependent increase in cold-stress resistance. Fat body and neuronal-specific inhibition of Akh by using RU486-inducible S(1)106-GS-Gal4 and Elav-GS-Gal4 enhancer traps, respectively, does not reduce lifespan extension upon DR. But, muscle-specific inhibition of Akh using RU486-inducible muscle enhancer trap (Mhc-GS-Gal4) reduces the DR-dependent increase in lifespan. While control exhibit a 47.2% lifespan extension, animals with muscle-specific Akh inhibition fails to result in any increase upon DR (i.e. completely blocked the DR lifespan extension). Muscle-specific Akh inhibition diminishes the increase in triglyceride synthesis and breakdown present normally under DR. A significant reduction in lifespan extension also occurs with a noninducible muscle driver (Mhc-Gal4). Controls on DR exhibit significant higher levels of spontaneous activity compared to Akh RNAi-inhibited animals at all ages. Akh inhibition reduces the protective effect of DR on age-related decline in muscle function/activity [22768842]. Fat-body specific Akh RNAi results in increased spontaneous activity and a small but significant increase in lifespan upon AL [22768842]. Overexpression of Akh in a ubiquitousness manner enhances fat metabolism (significant increase in triglyceride synthesis and breakdown under AL), spontaneous activity (148% on AL and 154% on DR), and lifespan on AL (33%). However, despite and increase in movement under DR, lifespan is not increased under a restricted diet [22768842]. 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
    alpha-Man-I alpha Mannosidase I alpha-Man-I mutant fly exhibit enhanced resistance to paraquat and starvation an a 60% increase in mean lifespan for both sexes. After outcrossing, the mutant exhibit, under normal conditions, an increase in mean lifespan of 22% for females and 38% for males. Maximum lifespan is increased by 15%. alpha-Man-I RNAi knockdown results in a 39% increase in mean lifespan [19302370]. Fruit fly
    aPKC atypical protein kinase C Insertion of a P-based vectors in the structural part of aPKC increase male and female lifespan [22661237]. Fruit fly
    Atg2 Autophagy-specific gene 2 Atg2 overexpression increases average female lifespan by 28% [18059160]. 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
    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
    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
    bam bag of marbles Bam mutants have an extended lifespan due to germ cell loss. Lifespan of females is on average up to 50% higher and that of males on average s up to 27.8% higher [18434551]. Fruit fly
    bchs blue cheese Loss of function mutation in bchs results in a 40-45% decrease in mean lifespan and is associated with age-related neurodegenerative phenotype with reduced CNS size and altered morphology as well as accumulation of insoluble ubiquinated proteins and amyloid precursor-like proteins along with an increase in neuronal apoptosis. No pronounced developmental defects were observed and young adults have normal behaviours, indicating that the bchs gene is essential for normal adult survival and longevity [12598614]. bchs mutation reduces mean lifespan by 28 - 54% and maximum lifespan by 24 - 46% [17435236]. Alfy (autophagy-linked FYVE protein) is the conserved human bchs homolog [15292400]. Fruit fly
    Bmcp Mitochondrial uncoupler Bmcp knockout flies live longer on low-calorie diets, have a decreased fertility, and gain less weight on high-calorie diets. Bmcp (ucp5) knockout mutants live longer than wild-type on low-calorie diets, but no longer on starvation or high-calorie diets. Ectopic neuronal expression of Bmcp transgene rescues starvation sensitive phenotype of Bmcp knockout mutants [16387864]. 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
    bwa brain washing bwa (alias Dacer) inactivation increases Drosophila pre-adult development time and anti-oxidative stress capacity. Mean lifespan is increased by 16% in females, by 21% in males and by 19% in total. Maximum lifespan of females, males is also extended by 20 and 12%, respectively [20112046]. 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
    Cat Catalase Simultaneous overexpression of catalase and Sod1 results in a one-third (i.e. 30%) lifespan extension, a slower rate of mortality acceleration, and a delayed loss in physical performance, but neither has any effect on lifespan alone [8108730]. Targeted overexpression of CAT in the mitochondrial matrix has no effect on lifespan at 25 degree Celsius, slightly shortens lifespan at 29 degree Celsius as is associated with increased resistance to endogenous hydrogen peroxide, paraquat, and cold stress [12521602]. Fruit fly
    Cbs Ubiquitous or neuron-specific transgenic overexpression of Cbs enhances longevity in fully-fed animals. Cbs RNAi partially abrogates increased lifespan by DR, but has no effect on fully fed animals. Cbs upregulation is required for increased lifespan under low-nutrient conditions. Response of male flies to DR is muted in comparison with females. Adult-specific ubiquitous expression of Cbs is sufficient to increase female mean and maximum lifespan by 12 - 43% and 10%, respectively. Males, whose lifespan is relatively less affected by DR, exhibite a smaller, but still significant increase in lifespan by 7% upon Cbs overexpression. Neuronal overexpression also increases lifespan, albeit modestly (approximately 12% mean and 15% maximum lifespan extension), whereas overexpression in the fat body and in the gut has no effect [21930912]. Fruit fly
    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
    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
    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
    CG10383 Overexpression of CG10383 in males increases mean and maximum lifespan by 12% and 8%, respectively [22366109]. Fruit fly
    CG10916 Mediator complex subunit 9 Overexpression of CG10916 in males increases mean and maximum lifespan by 27% and 26%, respectively [22366109]. Fruit fly
    CG11015 CG11015 is translational upregulated upon DR. Under rich nutritional conditions lifespan of CG11015 RNAi treated animals is indistinguishable from that of controls, while upon DR, lifespan extension is diminished in males and females [19804760]. Fruit fly
    CG12004 CG12004 exhibits a coding region difference unique to animals under experimental evolution selected for longevity and is differentially expressed in head of animals that were selected for longevity [23106705]. Fruit fly
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    • 25 of 211 factors
    Factors are an extension of GenAge and GenDR.

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