I've been trying to see the amplification of BDNF in neuroblastoma cells, but the usual method in which I transcribe 400 ug of total mRNA into cDNA, do a 1:5 diltution of this cDNA and then use 300nM of forward and reverse primers in RT-PCR do not generate a good curve, and do not even detect it. I've already tested different designed primers and they always occurs the same. What is the secret behind the detection of BDNF mRNA in SH-SY5Y cells?