Although I haven't used it myself, I have seen GAPDH
mentioned in other newsgroups for Real-time PCR as a
possible internal standard. However, this was not mentioned
specifically for work on material obtained from HIV+
individuals.
a.boasso wrote:
> We are using a semi-quantitative pcr assay to evaluate the expression level
> of genes involved in the immune system functions (like citokynes, receptors,
> co-stimulation molecules), in hiv+ individuals or aids patients.
> In this assay we perform a pcr reaction with two sets of primers:
> 1. a pair of primers for the target mRNA amplification (citokynes, receptors
> or co-stimulation molecules)
> 2. a pair of prime for the beta-actin mRNA, which will be the internal
> standard
>> The beta-actin mRNA concentration is determined in a previous step, with a
> specific competitive pcr assay, with a synthetic competitor, used in
> different reactions at different concentrations.
>> Some critics have been moved against the use of beta-actin as an internal
> standard, as its expression seems to change widely in pathologic cells.
>> Is anybody able to give me some hints or information about the use of some
> other internal standard genes in cells from hiv infected patients?
>> Thank's
