Table 1.
ORGANISM | GENES | FUNCTION IN STEP | LIFE SPAN OF OE1 | ROLES IN LONGEVITY PARADIGM2 | TRANSCRIPTION FACTOR3 |
---|---|---|---|---|---|
Yeast | ATG1 | Autophagy initiation | Rapa ↓§29 | ||
ATG11 | Phagophore formation | Rapa ↓§29 | |||
ATG7 | AP^ elongation | Rapa ↓§29, MetR ↓§34, Sper ↓§129 | |||
ATG8 | AP elongation | MetR ↓§34 | |||
ATG5 | Conjugated protein of Atg12 | MetR ↓§34 | |||
ATG8 | AP elongation | MetR ↓§34 | |||
VAM3 | SNARE protein, fusion | DR ↓§33 | |||
VAM7 | SNARE protein, fusion | DR ↓§33 | |||
ATG15 | Putative lipase required for intravacuolar disintegration of autophagic bodies | DR ↓§33 | |||
C. elegans | unc-51/ ATG1/Ulk1 | Autophagy initiation | LET-363/MTOR ↓§§§30, DR ↓§§30, GL ↓§§§70, Mit ↓§§30 | PHA-4/FOXA70, 96 | |
bec-1/ VPS30/ Becn1 | Membrane nucleation | LET-363/MTOR ↓§§§31, DR ↓§§30, §§§31, §§§§35 IIS ↓§§31, §§§§166, §§§§§167, GL ↓§§70 Mit ↓§§30, §§§§64, Resv ↓§§§115, Sper ↓§§§129, miR-34 ↓§§§146, CaN ↓§§§§§§ 170 | PHA-4/FOXA70, 96 | ||
vps-34/VPS34/Pik3c3 | Membrane nucleation | LET-363/MTOR ↓§§§31, DR ↓§§§31 GL ↓§§§70, Mit ↓§§§§64 | |||
atg-9 | Phagophore formation | miR-34 ↓§§§146 | |||
atg-18/ Wipi4 | Phagophore formation | GL ↓§§§70, Mit ↓§§30, §§§§64, RSKS-1/RPS6KB↓§§§64 | HLH-30/TFEB64, 168 | ||
atg-4.1 | AP elongation | miR-34 ↓§§§146 | |||
atg-7 | AP elongation | DR ↓§§§§35, IIS ↓§§§31, §§§§166, CaN ↓§§§§§§ 17 | |||
atg-12 | Ubiquitin-like modifier | IIS ↓§§§31, §§§§166 | |||
lgg-1/ ATG8/Lc3 | AP elongation | NE31,Unp. | GL ↓§§§70, Mit ↓§§§§64 | PHA-4/FOXA70, 96 | |
vha-16 | Vacuolar pH | GL ↓§§§64 | HLH-30/TFEB64 | ||
lmp-1 | Lysosomal membrane | GL ↓§§§64 | HLH-30/TFEB64 | ||
C08H9.1# | Lysosomal degradation | IIS ↓§§§94 | DAF-16/FOXO94 | ||
lipl-1 | Lysosomal lipolysis | ↑67 | HLH-30/TFEB67 | ||
lipl-3 | Lysosomal lipolysis | ↑67 | HLH-30/TFEB67 | ||
lipl-4 | Lysosomal lipolysis | ↑69 | GL↓ §§§69, IIS ↓§§§69 | DAF-16/FOXO69 | |
Drosophila | Atg1/Ulk1 | Autophagy initiation | ↑¶,¶¶39 | AMPK ↓¶,§§§39 | dFOXO/Foxo?39 |
Atg7* | AP elongation | Sper ↓§§129 | |||
Atg5 | AP elongation | Rapa ↓§§§§§32 | |||
Atg8/Lc3 | AP elongation | ↑¶37 | |||
Mouse | Atg5 | AP elongation | ↑36 |
(1) Life span of animals overexpressing (OE) autophagy gene: NE, no effect; ↓, decreased; ↑, increased. Note that most autophagy deletion mutants are short lived, likely due to developmental defects.
(2) Effect of autophagy gene inactivation on conserved longevity models: AMPK, overexpression of PRKAA/α-subunit of AMPK; CaN, reduced calcineurin signaling; DR, dietary/caloric restriction; GL, germline removal; IIS, reduced INS/insulin-IGF1 signaling; MetR, methionine restriction; miR-34, miR-34 loss of function; Mit, reduced mitochondrial respiration; Rapa, rapamycin treatment; Resv, resveratrol treatment, Sper, spermidine treatment; LET-363/MTOR, reduced TOR signaling.
(3) Transcriptional regulation of autophagy gene by noted transcription factor in at least 1 longevity model (not specified).
^AP, autophagosome.
*, known epigenetic regulation.
§, chronological life span was assessed.
§§, genetic mutant used. Genetic mutation of autophagy genes shortens somewhat the life span of wild-type C. elegans.
§§§, adult-only RNAi treatment. This treatment generally does not shorten the life span of wild-type C. elegans.
§§§§, RNAi treatment from L4 stage. This treatment generally does not shorten the life span of wild-type C. elegans.
§§§§§, whole-life RNAi treatment. This treatment generally shortens somewhat the life span of wild-type C. elegans.
§§§§§§, RNAi treatment for 2-4 generations
#, C08H9.1 is a putative lysosomal serine carboxypeptidase/CTSA homolog, i.e., C08H9.1.
¶, overexpression from neuron-specific promoter.
¶¶, overexpression from intestinal promoter.
Unp., unpublished by Hansen lab.