Protein Information

Name mammalian target of rapamycin
Synonyms FK506 binding protein 12 rapamycin complex associated protein 1; FK506 binding protein 12 rapamycin associated protein 1; FKBP12 rapamycin complex associated protein 1; FKBP12 rapamycin complex associated protein; FRAP; FRAP 1; FRAP 2; FRAP1…

Compound Information

Name paraquat
CAS 1,1′-dimethyl-4,4′-bipyridinium

Reference List

PubMed Abstract RScore(About this table)
20216949 Kimura K, Katsumata Y, Ozawa T, Tawara S, Igarashi K, Cho Y, Shibata N, Hakuno F, Takahashi S, Takenaka A: Effect of paraquat-induced oxidative stress on insulin regulation of insulin-like growth factor-binding protein-1 gene expression. J Clin Biochem Nutr. 2010 Mar;46(2):157-67. Epub 2010 Feb 27.

In contrast, PQ treatment impaired insulin-dependent phosphorylation of mammalian target of rapamycin (mTOR).
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19425177 Gonzalez-Polo R, Niso-Santano M, Moran JM, Ortiz-Ortiz MA, Bravo-San Pedro JM, Soler G, Fuentes JM: Silencing DJ-1 reveals its contribution in paraquat-induced autophagy. J Neurochem. 2009 May;109(3):889-98.

When human neuroblastoma SH-SY5Y cells were transfected with DJ-1-specific small interfering RNAs and exposed to paraquat, we observed (i) sensitization additive with paraquat-induced apoptotic cell death, (ii) inhibition of the cytoplasmic accumulation of autophagic vacuoles as well as the recruitment of LC3 fusion protein to the vacuoles, (iii) exacerbation of apoptotic cell death in the presence of the autophagy inhibitor 3-methyladenine, and (iv) an increase in mammalian target of rapamycin phosphorylation.
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17341480 Gonzalez-Polo RA, Niso-Santano M, Ortiz-Ortiz MA, Gomez-Martin A, Moran JM, Garcia-Rubio L, Francisco-Morcillo J, Zaragoza C, Soler G, Fuentes JM: Inhibition of paraquat-induced autophagy accelerates the apoptotic cell death in neuroblastoma SH-SY5Y cells. Toxicol Sci. 2007 Jun;97(2):448-58. Epub 2007 Mar 6.

Furthermore, the cells treated with PQ showed an increase of the long-lived protein degradation which is blocked in the presence of the autophagy inhibitor 3-methyladenine and regulated by the mammalian target of rapamycin (mTOR) signaling.
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16497721 Ravikumar B, Berger Z, Vacher C, O'Kane CJ, Rubinsztein DC: Rapamycin pre-treatment protects against apoptosis. Hum Mol Genet. 2006 Apr 1;15(7):1209-16. Epub 2006 Feb 23.

Here, we show that rapamycin may have additional cytoprotective effects--it protects cells against a range of subsequent pro-apoptotic insults and reduces paraquat toxicity in Drosophila.
Rapamycin, a lipophilic, macrolide antibiotic, induces autophagy by inactivating the protein mammalian target of rapamycin (mTOR).
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