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 PMID:37957360  

A drug-like molecule engages nuclear hormone receptor DAF-12/FXR to regulate mitophagy and extend lifespan.

Manish Chamoli | Anand Rane | Anna Foulger | Shankar J Chinta | Azar Asadi Shahmirzadi | Caroline Kumsta | Dhanya K Nambiar | David Hall | Angelina Holcom | Suzanne Angeli | Minna Schmidt | Sharon Pitteri | Malene Hansen | Gordon J Lithgow | Julie K Andersen
Nature aging | 2023

Autophagy-lysosomal function is crucial for maintaining healthy lifespan and preventing age-related diseases. The transcription factor TFEB plays a key role in regulating this pathway. Decreased TFEB expression is associated with various age-related disorders, making it a promising therapeutic target. In this study, we screened a natural product library and discovered mitophagy-inducing coumarin (MIC), a benzocoumarin compound that enhances TFEB expression and lysosomal function. MIC robustly increases the lifespan of Caenorhabditis elegans in an HLH-30/TFEB-dependent and mitophagy-dependent manner involving DCT-1/BNIP3 while also preventing mitochondrial dysfunction in mammalian cells. Mechanistically, MIC acts by inhibiting ligand-induced activation of the nuclear hormone receptor DAF-12/FXR, which, in turn, induces mitophagy and extends lifespan. In conclusion, our study uncovers MIC as a promising drug-like molecule that enhances mitochondrial function and extends lifespan by targeting DAF-12/FXR. Furthermore, we discovered DAF-12/FXR as a previously unknown upstream regulator of HLH-30/TFEB and mitophagy.

Pubmed ID: 37957360

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This is a list of tools and resources that we have found mentioned in this publication.


Caenorhabditis Genetics Center (tool)

RRID:SCR_007341

Center that acquires, maintains, and distributes genetic stocks and information about stocks of the small free-living nematode Caenorhabditis elegans for use by investigators initiating or continuing research on this genetic model organism. A searchable strain database, general information about C. elegans, and links to key Web sites of use to scientists, including WormBase, WormAtlas, and WormBook are available.

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CW152 (organism)

RRID:WB-STRAIN:WBStrain00005211

Caenorhabditis elegans with name gas-1(fc21) X. from WB.

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DA2123 (organism)

RRID:WB-STRAIN:WBStrain00005592

Caenorhabditis elegans with name adIs2122 from WB.

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JIN1375 (organism)

RRID:WB-STRAIN:WBStrain00022468

Caenorhabditis elegans with name hlh-30(tm1978) IV. from WB.

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VC1003 (organism)

RRID:WB-STRAIN:WBStrain00036241

Caenorhabditis elegans with name vha-3(ok1501) IV. from WB.

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DLM14 (organism)

RRID:WB-STRAIN:WBStrain00005851

Caenorhabditis elegans with name ttTi5605 II; unc-119(ed3) III; uwaEx8. from WB.

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NL5901 (organism)

RRID:WB-STRAIN:WBStrain00029035

Caenorhabditis elegans with name pkIs2386 [unc-54p::alpha-synnuclein::YFP + unc-119(+)] from WB.

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MAH235 (organism)

RRID:WB-STRAIN:WBStrain00026453

Caenorhabditis elegans with name sqIs19. from WB.

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CU6372 (organism)

RRID:WB-STRAIN:WBStrain00005196

Caenorhabditis elegans with name drp-1(tm1108) IV. from WB.

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SJ4143 (organism)

RRID:WB-STRAIN:WBStrain00034070

Caenorhabditis elegans with name zcIs17. from WB.

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PD4482 (organism)

RRID:WB-STRAIN:WBStrain00030579

Caenorhabditis elegans with name lmp-1(nr2045). from WB.

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CL4176 (organism)

RRID:WB-STRAIN:WBStrain00005113

Caenorhabditis elegans with name smg-1(cc546ts); dvIs27 [Pmyo-3::human Amyloid beta 1-42; let-851 3'UTR; rol-6(su1006)] from WB.

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RT258 (organism)

RRID:WB-STRAIN:WBStrain00033470

Caenorhabditis elegans with name unc-119(ed3) III; pwIs50. from WB.

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N2 (organism)

RRID:WB-STRAIN:WBStrain00000001

Caenorhabditis elegans with name Caenorhabditis elegans wild isolate. from WB.

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CL6049 (organism)

RRID:WB-STRAIN:WBStrain00005114

Caenorhabditis elegans with name dvIs62 X. from WB.

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OK39 (organism)

RRID:WB-STRAIN:WBStrain00029941

Caenorhabditis elegans with name cuIs2 IV. from WB.

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MAH242 (organism)

RRID:WB-STRAIN:WBStrain00026456

Caenorhabditis elegans with name sqIs24. from WB.

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TK22 (organism)

RRID:WB-STRAIN:WBStrain00034909

Caenorhabditis elegans with name mev-1(kn1) III. from WB.

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AA86 (organism)

RRID:WB-STRAIN:WBStrain00000013

Caenorhabditis elegans with name daf-12(rh61rh411) X. from WB.

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