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
    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
    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
    foxo Forkhead box, sub-group O foxo overexpression extends lifespan. Activation of foxo in the adult pericerbral fat body is sufficient for lifespan extension [15175753]. Overexpression of foxo in the adult adipose tissue alone prolongs lifespan [15192154; 15175753]. Limited activation of foxo reduces the expression of Drosophila insulin-like peptide dilp-2 synthesized in neurons and, represses endogenous insulin-dependent signaling in peripheral fat body [15175753]. foxo is not required for DR, but its activity modulates the response. foxo null mutants are highly and significantly shorter-lived than wild-type on all food dilutions apart from 0.1 SY and under starvation. foxo null mutants are not more sensitive to starvation than wild-type. foxo overexpression in adult fat body under normal nutritional conditions leads to extension of lifespan of females and causes a right shift of the response curve of lifespan to DR [18241326]. Overexpression of dFOXO in adult fat body increases median, by 21-33%, and maximum lifespan as well as lowers the age-specific mortality at all ages, in two independent experiments. Overexpression of dFOXO increases lifespan by lowering the whole mortality trajectory, with no effect on slope (similar to DR). Initiation of dFOXO expression at different ages increases subsequent lifespan with the magnitude of increase decreasing as the animals were put on RU486 (which activates the foxo transgene via UAS) at older ages. The effects of removal of dFOXO overexpression at different ages closely mirrored those of induction of expression and produce shortest lifespan observed in animals taken of RU486 at the earlier ages [17465980]. Fruit fly
    Gadd45 growth arrest and DNA damage-inducible gene 45 Gadd45 overexpression in the nervous system leads to a significant increase of lifespan without a decrease in fecundity and locomotor activity. The lifespan extension effect is more pronounced in males than in females. Additional maximum lifespan is also extended. The maximum lifespan is increased by 50% and 59% for females and males, respectively. The median lifespan is extended by 46 and 77% for females and males, respectively [22661237]. Fruit fly
    GstS1 Glutathione S transferase S1 GstS1 overexpression increases the mean lifespan by 33% [18059160]. Fruit fly
    Pten Increased Pten and 4E-BP activity in muscles is extends the lifespan [21111239]. 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
    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
    Zw Zwischenferment Mean lifespan of G6PD overexpressor flies is extended in comparison with driver and responder controls, armadillo-GAL4 (up to 38%), Tubulin-GAL4 (up to 29%), C23-GAL4 (up to 27%), da-GAL4 (up to 24%), D42-GAL4 (up to 18%) and Appl-GAL4 (up to 16%). The maximum lifespan is also increased [18809674]. G6PD enzymatic activity as well as levels of NADPH, NADH, and the GSH/GSSG ration are increased [18809674]. 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
    MTF-1 Metal response element-binding Transcription Factor-1 MTF-1 overexpression in either the peripheral nervous system or motorneurons extends both mean and maximum lifespan by 40% in males [18775584]. 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
    mys myospheroid mys mutants exhibit ameliorated age-related declines in locomotor activity and an increase in mean lifespan of 20% [14570233]. Fruit fly
    Naam Nicotinamide amidase Naam overexpression increases mean and maximum lifespan by 30% in both females and males. The lifespan extension is reversed by Sir2 mutants, indicating the it is dependent on Sir2 [18678867]. Fruit fly
    POSH Plenty of SH3s Neural-specific overexpression of POSH extends the mean lifespan of adult flies by 14% at 25°C. Ectopic expression of POSH during development results in morphological abnormalities [11868902]. Fruit fly
    Jafrac1 thioredoxin peroxidase 1 Neuronal overexpression of Jafrac1 significantly increases both mean and maximum lifespan, while neuronal knockdown as well as loss of function mutation, causes a reduction in lifespan by 30%. The mean lifespan is 26% and 29% higher in females and males, respectively. The maximum lifespan is increased by 22% and 26% in females and males, respectively [19720829]. There is a consistent and significant lifespan extension (15% mean lifespan increase) in both males and females when Jafrac1 is overexpressed in somatic cells. Jafrac1 overexpression using the weaker 5961FS driver moderately but significantly extends lifespan [20976250]. Fruit fly
    NF1 Neurofibromin 1 NF1 mutants have a shortened lifespan and exhibited increased vulnerability to heat and oxidative stress as well as reduced mitochondrial respiration and elevated ROS production. Overexpression of NF1 increases mitochondrial respiration and reduced ROS production. It increases mean lifespan by 49% in males and 68% in females and maximum lifespan by 38% in males and 52% in females. It also improved reproductive fitness [17369827]. 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
    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
    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
    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
    CG30427 Overexpression of CG30427 in males increases mean lifespan by 18% [22366109]. Fruit fly
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    • 25 of 64 factors
    Factors are an extension of GenAge and GenDR.

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