Im. Liu et al., Gene expression of alpha(1A)-adrenoceptor but not alpha(1B)-adrenoceptor in cultured myoblast C2C12 cells of mice, NEUROSCI L, 294(2), 2000, pp. 93-96
Subtypes of alpha (1)-adrenoceptor (alpha (1)-AR) in the cultured myoblast
C2C12 cells have been examined using molecular biological identifications.
Expression of the two distinct mRNAs that encode proteins of alpha (1A)- an
d alpha (1B)-AR was studied using reverse transcription combined with polym
erase chain reaction (RT-PCR). Results of RT-PCR demonstrated a marked expr
ession of alpha (1A)-AR in the prostate of rats. Samples from the C2C12 cel
ls under the same amount of amplification showed the expression of alpha (1
A)-AR at a level slightly lower than that from the prostate of rats. Wester
n blotting analysis using receptor subtype-specific antibody also indicated
that the alpha (1A)-AR was expressed in C2C12 cells as well as in prostate
of rats. However, although the expression of alpha (1B)-AR was obtained in
the spleen of rats, expression of alpha (1B)-AR was undetectable in the C2
C12 cells either the results of RT-PCR or the Western blotting analysis. Th
e present study suggests that alpha (1A)-AR is a major subtype of alpha (1)
-AR in the C2C12 cell line. (C) 2000 Elsevier Science Ireland Ltd. All righ
ts reserved.