| Casp-2 deficiency | Loss of caspase-2 resulted in a shortened (10%) maximum lifespan and in enhanced aging-related traits such as impaired hair growth, increased bone loss, and reduced body fat content [17188333]. | Mouse | — | — | -10 |
| Prkar2b knockout | Loss of function of Prkar2b results in mice that are lean and insulin sensitive. Both median and maximum lifespan is increased by 14%. Median lifespan is increasesd (from 884 to 1005) and 80% lifespan increased from 941 to 1073 days. There is no difference either in median or 80% lifespan in female genotypes [19536287]. | Mouse | — | +0 to +14 | +0 to +14 |
| Lamp2a expression restoration | Maintaining the amount of the Lamp2a (in a double transgenic mice) specifically in the liver at levels found in young adults prevents age-dependent decrease in receptor abundance at the cellular and organ levels. In this mice CMA activity is maintained until advanced ages which results in preservation of the autophagic activity and is associated with lower intracellular accumulation of damaged proteins, better ability to handle protein damage and improved organ function [19115216; 18690243]. Lamp2a expression restored not only CMA but also macrophagy and proteasomal degradation to the level observed in young liver as well as youthful mitochondrial function and cellular ATP abundance and overall youthful liver functions [18776878]. | Mouse | — | — | — |
| Melatonin supplementation | Melatonin administrated with drinking water increases anti-oxidant capacity of the brain and prolongs the mean lifespan by 20% of males but not females [11462771]. | Mouse | 0 to +20 | — | — |
| Tert overexpression | Mice genetically modified to express telomerase lived 40% longer and do not develop cancer. Overexpression of Tert in mice engineered to be cancer-resistant by means of ehanced expression of p53, p16 and p19ARF (Sp53/Sp16/SARF/TgTERT) decreased telomere shortening with age, delayed aging and increases mean and median longevity by 40% [19013273]. | Mouse | +40 | +40 | — |
| Coq7 knockout | Mice heterozygous in Coq7 live about 15 to 30% longer than controls [16195414]. | Mouse | +15 to +30 | — | — |
| Heterozyogus Trp53 truncation mutation | 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/6â129/Sv background. It has been proposed that the this allele of p53 results in increased activity/overexpression [11780111]. | Mouse | — | — | — |
| p53 deletion mutation | Mice heterozyogous for an allele of p53 that removes the 5' portion of the protein demonstrate decreased cancer, permature aging phenotypes, and shortened lifespan [11780111]. | Mouse | — | — | — |
| Wrn mutation | Mice lacking the helicase domain fo the WRN ortholog exhibit many phenotypic features of Werner Syndrom, including a pro-oxidant status and a shorter mean lifespan. Mice with a deletion in the helicase domain [9789047] recapitulates most of the Werner syndrome phenotypes, including an abnormal hyaluronic acid excretion, higher reactive oxygen species levels, dyslipidemia, increased genomic instability, and cancer incidence. Wrn(Dehl/Dehl) mutant mice have a 10 - 15% decrease in their mean lifespan [12707040; 19741171]. | Mouse | -10 to -15 | — | — |
| Tert gene therapy | Mice treated with an adeno-assoicated virus vector expressing TERT at the age of one lived 24% longer on average and those treated at the age of two, by 13%. Maximum lifespan of the mice treated at 1 and 2 years was also extended by and 13% and 20%, respectively. AAV9-mTERT treated mice also had improved health, delayed onset of age-related diseases (like osteoporosis and insulin resistance) as well as improved readings in ageing indicators like neuromuscular coordination [22585399].
The gene therapy consists of a single injected via tail vein and achieved a transduction efficiency of 20-50%. Already 1 month after treatment, the treated mice at both age groups had longer telomeres and a decrease in the short telomeres in multiple tissues, while the controls exhibit an increase in short telomerase. In contrast to their control littermates at 3 and 8 months post-treatment the blood of most of the AAV9-treated mice at 1 year had no decrease or exhibit even a net increase in average telomere length and had also no increase or even a marked decrease in percentage of short telomeres with time. Thus, the therapy achieved in perhipheral blood leukocytes a prevention of telomere shortening. Treated mice had lower leves of fasting insulin, improved glucose tolerance and better homeostatic model assessment. Two years old treated mice had higher IGF1 levels. Treated mice at both ages had improved memory scores. AAV9-mTERT treatment increased cyclinD1 positive cells in various tissues. Upon AAV9-mTERT treatment levels of p16 decreased in most organs (with exception of heart). The metabolic and mitochondrial decline in 2 years old mice treated was not as apparent as in controls [22585399].
| Mouse | +13 to +24 | — | +13 to +20 |
| Homozygous knock-in of proof-reading deficient Polg | Mice with a proof-reading-deficient version of Polg display an increased amount of mtDNA mutations (by 3 to 5-fold) and signs of premature ageing including a reduced lifespan, weight loss, reduced subcutaneous fat, alopecia, kyphosis, osteoporosis, anaemia, reduced fertility, and heart enlargement. Median lifespan of homozyous Polg mutant knock-in mice is 48 months [15164064]. | Mouse | — | — | — |
| Arhgap1 knockout | Most Ahrgap1 knockout mice are weak and die during the neonatal period. Animals that survived have a shorter lifespan (median lifespan is 12 months) and show premature aging-like phenotypes, including a reduction in body mass, a loss of subdermal adipose tissue, lordokyphosis, and osteoporosis [17227869]. | Mouse | — | — | — |
| Msra knockout | Msra homozygous knockouts exhibit a 40% shorter lifespan than wild-type or heterozygotes (C57BL/6J). Msra -/- mice have enhanced sensitivity to oxidative stress, accumulatehigher levels of protein cabronyls, and demonstrate and atypical walking pattern [11606777]. | Mouse | -40 | — | — |
| ectopic Trp53 overexpression | 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]. | Mouse | — | — | — |
| Ercc2 mutation | Mutations in Ercc2 increases cancer incidence and appear to accelerate ageing. Homozyogus mutation of Ercc2 results in an extreme shortening (71%) of lifespan (mean lifespan = 7 months) relative to wild-type (mean lifespan = 24 months) [de Boer et al. 2002]. The shortened lifespan of the mutant mouse is accompanied by symptoms of premature aging including osteoporosis, early greying, cahexia, and infertility.
It provides a mouse model for the britte hair disorder trichothiodystrophy (TTD) as it phenotypes include britte hair, UV sensitivity, and developmental defects [9651581]. | Mouse | -71 | — | — |
| N-acetyl-serotonin administration | N-acetyl-serotonin (a melatonin precursor) administrated with drinking water increases anti-oxidant capacity of the brain and prolongs the mean lifespan by 20% of males but not females [11462771].
| Mouse | 0 to +20 | — | — |
| Gh antagonist overexpression | Overexpression of a growth hormone antagonist (a mutated bovine growth hormone that competes with the endogenous one) has no effect on lifespan [12933651]. | Mouse | — | — | — |
| Fgf21 overexpression | Overexpression of Fgf-21 increases the mean lifespan by 30% for male mice and 39% for female mice [23066506].
Mice overproducing Fgf21 are lean throughout their lives and remain lean even while eating slightly more than wild-type mice. Fgf21 overproducers tend to be smaller than wild-type mice and female mice were infertile. Although Fgf21 overproducers have significantly lower bone density than wild-type, Fgf21-abundant mice exhibit no ill effects from the reduced bone density and remain active into old age without any broken bones [23066506]. | Mouse | +30 to +39 | — | — |
| GH overexpression | 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 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]. | Mouse | — | — | — |
| Overexpression of mitochondrial targeted CAT | Overexpression of human catalase targeted to mitochondria (MCAT) extends mean and maximum lifespan by about 20% in mice. Inactivation of aconitase in heat mitochondria and mitochondrial damage is also reduced in long-lived CAT mutant mice [15879174].
The MCAT strain has a reduced severity of age-dependent arteriosclerosis and increased genomic stability, as indicated by an decrease in oxidative stress and mitochondrial deletions in heart and muscle tissues. Median and maximum lifespan in increased about 17 - 21% [16144468]. | Mouse | +20 | +17 to +21 | +17 to +21 |
| Mir20a Overexpression | Overexpression of MiR-20a in mouse embryonic fibroblasts induces senescence by lowering Lrf (a transcriptional repressor of the Mdm2 inhibitor p19ARF [15662416; 9529248]) protein levels and in turn increasing p19ARF levels [18596985]. | Mouse | — | — | — |
| Pck1 overxpression | Overexpression of Pck1 in skeletal muscle results in an increased number of mitochondria, markedly increase in activity, and extended lifespan by 30%. Transgenic mice ate 60% more than controls but had half the body weight and 10% of the body fat [17716967; Hakimi, Berger and Hanson, unpublished]. Pck1 overxpression leads to increased storage and utilization of fatty acids in muscle for energy purposes and mutants store up to 5-times more triglyceride in their skeletal muscle, and exhibit increased levels of physiological activity [18394430]. | Mouse | +30 | — | — |
| Pcmt overexpression | Overexpression of Pcmt extends lifespan by 32-39% at 29 degrees but not at 25 degrees [11742076].
The adult lifespan of animals overexpressing Pcmt is extended [18772467]. | Mouse | 0 to 39 | — | — |
| Sirt6 overexpression | Overexpression of Sirt6 in male mice lengthens the median lifespan by 9.9-14.5% and maximum lifespan by 13.1-15.8% [22367546]. | Mouse | — | +9.9 to +14.5 | +13.1 to +15.8 |
| K5-Tert overxpression | Overexpression of telomerase results in a high cancer incidence but also a modest mean (10%) and maximum lifespan extension accompanied by a lower incidence of some age-related degenerative diseases, in particular those related to kidney function and germline integrity [15688016]. | Mouse | +10 | — | — |
GenAge
GenDR
