S. Bettuzzi et al., GENE RELAXATION AND AGING - CHANGES IN THE ABUNDANCE OF RAT VENTRAL PROSTATE SGP-2 (CLUSTERIN) AND ORNITHINE DECARBOXYLASE MESSENGER-RNAS, FEBS letters, 348(3), 1994, pp. 255-258
Sulfated glycoprotein 2 (SGP-2) mRNA progressively increased in the ve
ntral prostate of the aging rat, reaching, at 24 months, 4-fold higher
than at 3 months. Ornithine decarboxylase (ODC) mRNA peaked at 6 mont
hs (4-fold increase), and at 12 and 24 months was maintained at higher
levels than at 3 months. ODC enzymatic activity was enhanced at 6 mon
ths to a much smaller extent than its own mRNA, the values at 12 and 2
4 months dropping to below those at 3 months. Putrescine (Put), spermi
dine (Spd) and spermine (Sp) concentrations also peaked at 6 months (1
00% increase for Put, 50% for Sp and Spd). At 24 months, Put and Spd w
ere diminished, and Sp was unchanged with respect to the 3-month value
s. Under the same conditions, glyceraldehyde-3-phosphate dehydrogenase
mRNA did not undergo significant alterations.