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Effect of 4-Hydroxynonenal on c-myc Expression
Giuseppina Barrera
Istituto di Patologia Generale, Corso Raffaello 30, Torino, Italy, and Istituto di Patologia Generale, Università "La Sapienza," Viale Regina Elena 324, Roma, Italy
Stefano Martinotti
Istituto di Patologia Generale, Corso Raffaello 30, Torino, Italy, and Istituto di Patologia Generale, Università "La Sapienza," Viale Regina Elena 324, Roma, Italy
Vito Fazio
Istituto di Patologia Generale, Corso Raffaello 30, Torino, Italy, and Istituto di Patologia Generale, Università "La Sapienza," Viale Regina Elena 324, Roma, Italy
Vittorio Manzari
Istituto di Patologia Generale, Corso Raffaello 30, Torino, Italy, and Istituto di Patologia Generale, Università "La Sapienza," Viale Regina Elena 324, Roma, Italy
Luciana Paradisi
Istituto di Patologia Generale, Corso Raffaello 30, Torino, Italy, and Istituto di Patologia Generale, Università "La Sapienza," Viale Regina Elena 324, Roma, Italy
Maurizio Parola
Istituto di Patologia Generale, Corso Raffaello 30, Torino, Italy, and Istituto di Patologia Generale, Università "La Sapienza," Viale Regina Elena 324, Roma, Italy
Luigi Frati
Istituto di Patologia Generale, Corso Raffaello 30, Torino, Italy, and Istituto di Patologia Generale, Università "La Sapienza," Viale Regina Elena 324, Roma, Italy
Mario U. Dianzani
Istituto di Patologia Generale, Corso Raffaello 30, Torino, Italy, and Istituto di Patologia Generale, Università "La Sapienza," Viale Regina Elena 324, Roma, Italy
The 4-hydroxynonenal aldehyde (HNE), a product of lipid peroxidation with high biological activity, inhibits cancerous growths in vivo and in vitro. The mechanism by which this aldehyde acts is not yet understood. The c-myc oncogene seems to be involved in the regulation of cellular multiplication and transformation. We evaluated the c-myc expression and the RNA, DNA and protein synthesis in K562 cells. These cells were incubated for 1 hour in presence of several aldehyde concentrations (range 5.10-7 to 10-4), then washed and kept for 20 hours in a growth medium until used. HNE inhibited both the nucleic acids and protein synthesis in a dose dependent manner, and c-myc expression was evaluated in the K562 cells after incubation with 10-4m or 10-6m HNE. HNE inhibited c-myc expression only at the highest dose. These preliminary results may suggest that the inhibition of c-myc expression is related to nucleic acid synthesis inhibition following HNE exposure.
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Toxicologic Pathology, Vol. 15, No. 2,
238-240 (1987)
DOI: 10.1177/019262338701500219

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