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
    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
    Sin3A Overexpression of Sin3A increases mean and maximum lifespan by 13% and 3%, respectively [22366109]. Fruit fly
    CG30427 Overexpression of CG30427 in males increases mean lifespan by 18% [22366109]. Fruit fly
    CG10383 Overexpression of CG10383 in males increases mean and maximum lifespan by 12% and 8%, respectively [22366109]. Fruit fly
    CG13890 Overexpression of CG13890 (DCI) throughout the whole body increases mean and median lifespan by 35 and 31%, but decreases maximum lifespan by 6%, increases stress resistant (to paraquat and starvation), consistently reduces the mortality rate across adult ages and reduces the lifespan extension of DR by 15% [22997544]. CG6783 overexpression increases the dFOXO nuclear localization in the fat-body. mRNA levels of dFOXO target genes l(2)efl and 4E-BP in the adult whole bodies increases in response to overexpression of CG6783 [22997544]. Fruit fly
    mir-34 mir-34 loss triggers a gene expression profile of accelerated brain aging, late-onset brain degeneration and catastrophic decline in survival, while mir-34 upregulation extends median lifespan and mitigated neurodegeneration induced by polyglutamine. Fruit fly
    Sir2 Overexpression of Sir2 (alias dSir2) extends lifespan by up to 57% and specifically median lifespan by 40-60%, whereas a decrease in Sir2 activity by mutation blocks the life-extending effect of caloric reduction or rpd3 mutations [15520384]. rpd3 mutants fed normal food and wild-type fed a low-calorie diet increase dSir2 expression two-fold [12459580]. Sir2 mutation does not reduce lifespan under AL. Ubiquitous Sir2 overexpression causes a 4-fold increase in Sir2 mRNA expression and an up to 57% increase in average lifespan (29% for females and 18% for males). A 10 - 20% increase in Sir2 mRNA levels causes no lifespan extension. High levels of Sir2 protein is found in nuclei of neurons and in nuclei and cytoplasm of fat body cells. Neuronal Sir2 overexpression extends average lifespan by 52% in females and 20% in males. Motor-neuronal specific expression fails to cause lifespan extension. Flies with no or with several decreased Sir2 gene function have no lifespan extension under DR. DR fails to cause further increase in lifespan or even reduces lifespan toward normal of Sir2 overexpression mutants. Mild Sir2 overexpression in the fat-body extends lifespan and reduces relative body fat content in both males and females [22661237]. Sir2 in the adult fat body regulates longevity in a diet-depending manner. A diet-dependent lifespan phenotype of Sir2 perturbations (both knockdown and overexpression) in the fat-body, but not in muscles, negates the effects of background genetic mutants. Sir2 knockdown abrogates fat-body dFoxo-dependent lifespan extension [23246004]. Decreased expression of Sir2 and Sir2-like genes in all cells causes lethality during development. Suppression of the Sir2 in neurons decreases the median lifespan by 10-30%, while ubiquitinous silinecing of the Sir2-like genes shortens lifespan. The effects are server at 28°C that at 25°C [17159295]. Fruit fly
    hebe Adult-specific overexpression of hebe increases the lifespan by 5-30% and modulates late-age female fecundity. Female and male mean lifespan is up to 11% and 24% higher [19011900]. Fruit fly
    magu Adult-specific overexpression of magu increases lifespan by 5-30% and modulates late-age fecundity [19011900]. Fruit fly
    Pten Increased Pten and 4E-BP activity in muscles is extends the lifespan [21111239]. 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
    Spargel Tissue-specific overexpression of dPGC-1 in stem and progenitor cells within the digestive tract of females flies extends the mean and maximum lifespan of females by up to 33% and 37%. Those mutants display a delay in the onset of aging-related changes in the intestine, leading to improved tissue homoeostasis in old flies [22055505]. 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
    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
    Atg2 Autophagy-specific gene 2 Atg2 overexpression increases average female lifespan by 28% [18059160]. 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
    Pka-C1 cAMP-dependent protein kinase 1 PKA-overexpressing flies (hsPKA*/+) have an about 30% extended maximum lifespan [17369827]. Fruit fly
    Tsc1 CG6147-PA Tuberous sclerosis complex genes 1 Ubiquitously overexpression of UAS constructs (via the daughterless (da)-GAL-4 driver) containing dTSC1 extends mean lifespan at 29°C by 14% [15186745]. Fruit fly
    cher cheerio Overexpression of cher from a doxycycline-inducible promoter results in a 7 - 9% increase in mean lifespan (in PdL x rtTA; Oregon-R x rtTA) [12620118]. 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
    Mt2 DNA methyltransferase 2 Overexpression of Dnmt2 extends mean and maximum lifespan [15533947]. Fruit fly
    Eip71CD Ecdysone-induced protein 28/29kD Overexpression of Eip71CD (alias MsrA) in nervous system extends the lifespan by up to 70%, increased resistance to oxidative stress, and delays the onset of senescence-induced decline in activity levels and reproductive capacity. Eip71CD is a downstream effector of foxo [22310715]. Mean and maximum lifespan is increased by up to 2-% in animals that overexpress Eip71CD [20655917]. Fruit fly
    ImpL2 Ecdysone-inducible gene L2 Lmp-L2 over-expression, ubiquitous or restricted to DILP-producing cells and/or gut and fat body, extends lifespan even if induced at adult onset [21108726]. Overexpression of ImpL2 increases mean and maximum lifespan by 15% and 23%, respectively. Lifespan is reduced when Impl2 is strongly over-expressed throughout the adult by the conditional GS driver, act-GS-GAL4 or da-GS-Gal3, while restricted over-expression of the ImpL2 in fat cells by using S106-GS-Gal4, which increases mRNA level about 6-fold extends lifespan in both sexes [22366109]. mRNA for Impl2 was strongly elevated in sterile, long-lived flies [18434551]. Fruit fly
    Ef1alpha48D Elongation factor 1alpha48D Overexpression of Ef1alpha48D (transformed with a P-element vector and under control of hsp70 regulatory sequences) results in lifespan extension by 18-41%. The decrease in protein synthesis that accompanies aging is preceded by a decrease in EF-1 alpha protein and mRNA [2508089]. Fruit fly
    fabp fatty acid bindin protein Overexpression of fabp (CG6783) throughout the whole body increases mean, median and maximum lifespan by 77, 81 and 13%, increases stress resistant (to paraquat but not starvation), consistently reduces mortality rate across adult ages and reduces the lifespan extension of DR by 12% [22997544]. fabp overexpression increases the dFOXO nuclear localization in the fat-body. mRNA levels of dFOXO target genes l(2)efl and 4E-BP in the adult whole bodies increases in response to overexpression of fabp [22997544]. Females of the genotype Act-GS-Gal4 > UAS-CG6783 exhibit an increase in median lifespan compared to uninduced control in response to feeding with RU486-containing food from day 3 of adulthood (P < 0.0001). Mean lifespan is extended by 10, while maximum lifespan is decreased by 11% [22997544]. Fruit fly
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    • 25 of 64 factors
    Factors are an extension of GenAge and GenDR.

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