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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  • symbol name observation species
    Gh Growth hormone Overexpression of GH is associated wtih markedly reduced lifespan and various indices of premature aging [8100276]. Transgenic mice overexpressing bovine GH1 are bigger than controls and display signs of premature aging such as a shortened lifespan, glomerulosclerosis and glomerulonephritis, increased astrogliosis, and early onset of age-related changes in cognitive function [14583653]. House mouse
    Terf2 telomeric repeat binding factor 2 Overexpression results in signs of premature ageing. House mouse
    Trp53 Transformation related protein 53 Mice heterozyogous for an allele of p53 that removes the 5' portion of the protein demonstrate decreased cancer, permature aging phenotypes, and shortened lifespan in the mixed inbred C57BL/6–129/Sv background. It has been proposed that the this allele of p53 results in increased activity/overexpression [11780111]. Decreased activity of Trp53 results in increased cancer and decreased apoptosis. Mutant mice with activated Trp53 display enhanced resistance to spontaneous tumours and signs of premature ageing including reduced lifespan, osteoporosis, organ atrophy and a diminished stress tolerance [11780111]. However, super-p53 mice generate by a transgenic copy of a large genomic segment containing an intact and complete copy of p53 have an ehanced response to DNA damage, are significantly protected from cancer and had no indication of accelerated aging [12426394]. super-Ink4a/Arf/p53 mice have a synergic protection against cancer and delayed aging [Workshop RoSyBa 2011]. House mouse
    GH1 Growth hormone 1 Transgenic mice overexpressing bovine GH1 are bigger than controls and display early onset of pathological changes in the kidneys such glomerulosis and glomerulonephritis as well as signs of premature aging such as a shortened lifespan, increased astrogliosis, shortened reproductive lifepsan and early onset of age-related changes in cognitive function, hypothalamic neurotransmitter turnover, and plasma corticosterone levels [14583653]. Cattle
    MAPT microtubule-associated protein tau Expression of wild-type human MAPT (tau) moderately shortened lifespan. Expression of a mutant form of human MAPT (Arg406 Trp), associated with an early onset familial form of demetia, results in a several shortened lifespan. MAPT is implicated in the pathogenesis of Alzeimer's disease and related disorders in humans. Transgenic flies exhibit key features of the human disorders: adult onset, progressive neurodegeneration, early death, enhanced toxicity of mutant tau, accumulation of abnormal tau, and relative anatomic selectivity. However, neurodegeneration occurred without the neurofibrillary formation that is observed in humans disease and some rodent taupathy models [11408621]. Human
    S6k RPS6-p70-protein kinase Ubiquitous overexpression of a dominant-negative form of S6k (alias dS6K) increases mean lifespan by 22% and overexpression of a constitutively active form of S6k decreases mean lifespan by 34% at 29°C. Overexpression of a dominant-negative form of S6k protects mutants from deleterious effects of rich food, as if mimicking the effect of DR [15186745]. Fruit fly
    sdhC succinate dehydrogenase, cytochrome b556 subunit Mutants expressing a dominant negative form of sdhC in the nervous system have a 22% reduced mean lifespan and signs of oxidative stress induction [17854771]. Fruit fly
    DNApol-gamma35 DNA polymerase gamma 35kD Overexpression of DNApol-gamma35 (DNA polymerase gamma) in the nervous system results in a decrease in the median lifespan ranging from 39% to 52% [17999718]. Fruit fly
    Gr63a Gustatory receptor 63a Gr63a loss-of-function in female flies leads to 30% extended mean lifespan, increased fat deposition, and enhanced resistance to some (but not all) environmental stresses. Lifespan of males is not extended [20422037]. Overexpression of Gr63a has modest negative effect on lifespan [20422037]. 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
    kuk kugelkern Overexpression of kugelkern in the adult muscle results in a 60% reduction of mean lifespan [18494863]. Fruit fly
    LBR Lamin B receptor Overexpression of Lamin B receptor in the adult muscle and in the abdominal fat body results in a 54% and 46% reduction of mean lifespan, respectively [18494863]. 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
    let-60 LEThal The let-60(n1046gf) activating mutation greatly reduces lifespan of wild-type, weakly suppresses constitutive dauer diapause in daf-2 and age-1 mutants and extends lifespan induced by mutation of daf-2 [16164423]. Nematode
    nlp-7 Neuropeptide-Like Protein nlp-7 RNAi or overexpression reduces oxidative stress resistance and shortens lifespan of wild-type under AL. nlp-7 RNAi significantly reduces extended lifespan of eat-2 mutants, but failed to block lifespan extension of age-1 or clk-1 mutants. Lifespan of nlp-7 mutants increases only moderately by sDR [19783783]. nlp-7 expression is induced under DR via the use of a chemically defined axenic medium [17023606] and by sDR [19783783]. Nematode
    cup-4 Coelomocyte UPtake defective 4 cup-4 RNAi or overexpession reduces oxidative stress resistance and shortens lifespan of wild-type under AL. cup-4 RNAi significantly reduces the extended lifespan of eat-2 mutants, but failed to block lifespan extension of age-1 or clk-1 mutants. Lifespan of cup-4 mutants increases only moderately by sDR [19783783]. Nematode
    tdp-1 TAR DNA-binding Protein homolog 1 tdp-1(ok803) mutation increases mean and maximum lifespan at 20 degree Celsius but not at 25 degree Celsius. tdp-1(ok803) reduce the lifespan of daf-2(e1370) mutants, but does not does not reduces the lifespan of daf-16(mu86) mutants. RNAi against tdp-1 reduces lifepsna of daf-2(e1370) mutants. tdp-1 overexpression strains have a reduced lifespan at 20 and 25 degree Celsius [Vaccaro et al. 2012]. Nematode
    lin-14 abnormal cell LINeage 14 A loss-of-function mutation in lin-14 extends lifespan by 31% while a gain-of-function mutation decreases lifespan. The life-extending effects is dependent on daf-16 and hsf-1. Also, lin-14 is a target of lin-4 [16373574]. lin-14(n719) mutation extends mean and maximum lifespan of control animals by 20 and 67%, respectively [23097426]. Knockdown of lin-14 only during adulthood is sufficient to extend lifespan and suppresses the short lifespan phenotype of lin-4 mutants. Nematode
    mir-239 Mutating mir-239 increases mean and maximum lifespan by 12 and 36%, respectively, whereas overexpressing mir-239 decreases mean and maximum lifespan by 13 and 17 - 33%, respectively [21129974]. Nematode
    RPL6A Ribosomal Protein of the Large subunit 6A Deletion of RPL6A decrease mean replicative lifespan by 25% in the alpha strain [18340043; 18423200], but increases mean replicative lifespan by 40% in the remade strain. Its deletion non-significantly increases mean replicative lifespan in the ORF collection [22377630]. Budding yeast
    SCP1 S. cerevisiae CalPonin 1 Increasing actin dynamics by deletion of SCP1, encoding an actin bundling protein, increases replicative lifespan by 67% as well as chronological lifespan by 88%, whereas its overexpression leads to elevuated ROS levels and reduces chronological lifespan (in KAY446 strain) [15024029]. SCP1 is related to mammalian SM22/transgelin which is induced during senescence [9570922]. Budding yeast
    SNF4 Sucrose NonFermenting 4 Deleting SNF4 extends replicative lifespan by 10-20% in S288C strain [10921902]. Budding yeast
    CLN3 CycLiN 3 Overexpression shortens chronological lifespan together with age-dependent increases in genome instability and apoptosis. While around 80% of wild-type cells are alive almost non CLN3 overexpressers are alive (under condition that avoids adaptive regrowth) [17710147]. Budding yeast
    FBP1 Fructose-1,6-BisPhosphatase 1 Deletion of FBP1 increases survival during the first 15 days during chronologocal aging, but does not increase chronological lifespan. FBP1 deletion reduces production of reactive oxygen species while overexpression of FBP1 shortens chronological lifespan [16199065]. Budding yeast
    YDC1 Yeast DihydroCeramidase 1 Overexpression of YDC1 decreases chronological lifespan by 40% [19059240] Budding yeast
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    • 25 of 32 factors
    Factors are an extension of GenAge and GenDR.

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