| foxo overexpression | 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 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]. | Fly | — | +21 to +33 | — |
| p53 dominant negative overexpression | Expression of dominant-negative versions of p53 in adult neurons extends lifespan by 58% in females and by 32% in males and increases resistance to genotoxic stress and resistance to oxidative stress, but not to starvation or heat stress, while not affecting egg production or physical activity. Dominant negative Dmp53 expression cancels out lifespan extension effect of DR, low calorie-food (5% SY). Muscle or fat body specific expression of a dominant negative form of Dmp53 as well as globally lack of Dmp53 decreases lifespan [16303568].
Expression of dominant-negative (DN) form of p53 in adult neurons, but not in muscle or fat body cells, extends median lifespan by 19% and maximum lifespan by 8%. The lifespan of dietary-restricted flies is not further extended by simultaneously expressing DN-DMp53 in the nervous system, indicating that a decrease in Dmp53 activity may be part of the DR lifespan-extending effect. Selective expression of DN-Dmp53 in only the 14 insulin-producing cell (IPCs) in the brain extends lifespan to the same extent as expression in all neurons and this lifespan extension is not additive with DR [17686972].
| Fly | +32 to +58 | +19 | +8 |
| Hsp68 overexpression | Overexpression of Hsp68 extends modestly (by around 15%) median and maximum lifespan [14602080].
There is a consistent and significant lifespan extension by 20% in both males and females when hsp68 is overexpressed in somatic cells. hp68 overexpression using GMR-Gal4, and eye-specific driver that expresses Gal4 in salivary glands has no effects.Hsp78 overexpression using the weaker 5961FS driver moderately but significantly extends lifespan [20976250]. | Fly | +20 | +15 | +15 |
| LY294002 treatment | Treatment of Drosophila imago with 5 micromolar LY294002 increases median (by 14%) and maximum (by 16-22%) lifespan (p<0.001) in females and males, respectively [22661237].
Low dose of LY294002 (5 microM) slightly increase the median and maximum lifespan [20017609]. | Fly | — | +14 | +16 to +22 |
| Dominant negative Tor | Expression of a dominant-negative form of Tor extends lifespan [15186745]. Ubiquitious overexpression of dTOR with the da-GAL4 driver of UAS-dTOR(FRB) which contains the 11kDA FKB12-rapamycin binding domain led to a mean and maximum lifespan increase of 15% (24%) and 29% at 29°C and of 50% (26%) and 13% at 25°C, respectively [15186745].
Overexpression of the dominant-negative form of Tor specifically in the fat and muscle tissues is sufficient to extend the mean and maximum lifespan by 24 and 19%, respectively [15186745].
Overexpression of UAS-dTOR(WT) or UAS-dTOR(TED) prevents eclosion to adulthood [15186745]. | Fly | +15 to +50 | +13 to +29 | — |
| D-chiro-inositol supplementation | D-chiro-inositol supplementation to the diet extends adult longevity in both male and female animals. 20 microMolar dose of D-chiro-inositol extends median lifespan by 16.7 (p < 0.001) for males and 13% (p < 0.001) for females. Lifespan extension by D-chrio-inositol is accompanied by protection against oxidative and starvation stresses, improvement in health span, and not reduction in fecundity. Nuclear localization of foxo increases in D-chiro-inositol-fed animals [22843669].
| Fly | — | +13 to +16.7 | — |
| Pinitol supplementation | Pinitol (a 3-methoxy analogue of D-chiro-inositol) supplementation to the diet. For both males and females, a 20 microMolar dose of pinitol significantly extends median lifespan by 13% (p < 0.05) and 12.5% (p < 0.05), respectively. Lifespan extension by pinitol is accompanied by protection against oxidative and starvation stresses, improvement in health span, and no reduction in fecundity. Pinitol increases organismal lifespan of both in dietary restriction and ad libitum conditions. Nuclear localization of foxo increases in pinitol-fed animals. Pinitol treatment significantly activates JNK and S6K, but not AKT [22843669]. | Fly | — | +12.5 to +13 | — |
| Thor overexpression | Ubiquitously overexpression of wild-type Thor (alias d4E-BP) 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]. | Fly | +11 to +40 | +11 to +22 | +16 to +18 |
| PDTC treatment | Treatment of Drosophila imago with PDTC increases median (by 11-13%) and maximum (by 11-14%) lifespan in females and males, respectively [22661237]. | Fly | — | +11 to +13 | +11 to +14 |
| Ablation of median neurosecretary cells | Flies with an ablation of median neurosecretary cells (which eliminates Ilp2 expression) exhibit a significant increase in mean and maximum lifespan over that of control flies and an increase to oxidative stress and starvation. The mutants also exhibit increased storage of lipid and carbohydrate, reduced fecundity, and reduced tolerance of heat and cold [15708981]. The median and maximum lifespan of females is increased by 33.5% and 40%, respectively. In males the median and maximum lifespan is increased by 10.5% and 27%, respectively [15708981]. | Fly | — | +10.5 to +33.5 | +27 to +40 |
| Akh knockdown | 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 the 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]. | Fly | — | — | — |
| Sod mutation | Sod mutant flies display infertility and a reduction in lifespan [2539600]. | Fly | — | — | — |
| sun mutation | sun mutations increases lifespan and resistance to oxidative stress [15133470] | Fly | — | — | — |
| CG4389 knockdown | Muscle specific RNAi knockdown of CG489 which reduces its mRNA levels by 25-35%, significantly reduces the DR-dependent lifespan extension. CG4389 RNAi animals exhibit only 20% increase while controls display an lifespan increase by 123% upon DR [22768842]. | Fly | — | — | — |
| Surf1 knockdown | Surf1 knockdown results in larval lethality. However, knockdown in the central nervous system (CNS) not only bypasses the larval lethality but it results in an increase in maximum lifespan of about 20-30% [16172499]. | Fly | — | — | +20 to +30 |
| CG7834 knockdown | Muscle specific RNAi knockdown of CG7834 which reduces its mRNA levels by 25-35%, significantly reduces the DR-dependent lifespan extension. CG7834 RNAi animals exhibit only a 14% increase compared to the 55% lifespan-increase in controls upon DR [22768842]. | Fly | — | — | — |
| UCP2 overexpression | Overexpression of human UCP2 in the fly nervous system extends lifespan by 10-30%. Ubiquitous overexpression is lethal [16054055]. | Fly | +10 to +30 | — | — |
| rpr overexpression | Flies with ablated wings caused by overexpressing reaper (UAS-rpr) with a wing-specific Gal4 enhancer trap (1096-Gal4) exhibit only a 14% extension in lifespan compared to controls which exhibit a 61% extension upon DR [22768842]. | Fly | — | — | — |
| 14-3-3epsilon mutation | 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]. | Fly | +25 to +49 | — | — |
| Fat-body specific Akh knockdown | Fat-body specific Akh RNAi results in increased spontaneous activity and a small but significant increase in lifespan upon AL [22768842].
| Fly | — | — | — |
| Akt1 RNAi | 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]. | Fly | -11.4 to -7.4 | — | — |
| Single-housing | Single-housed male flies that are restricted in small activity tubes exhibit significant increase in lifespan on a sugar-based DR regimen [22570630]. | Fly | — | — | — |
| alpha-Man-I mutation | 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% [19302370]. | Fly | +22 to +60 | — | +15 |
| alpha-Man-I RNAi | alpha-Man-I RNAi knockdown results in a 39% increase in mean lifespan [19302370]. | Fly | +39 | — | — |
| Atg2 overexpression | Atg2 overexpression increases average female lifespan by 28% [18059160]. | Fly | +28 | — | — |
GenAge
GenDR
