neural cell adhesion molecules (ncams) are known to influence memory by affecting neural cell-cell and cell-extracellular matrix junctions. this study investigated the possible role of camp pathway in the expression of hippocampal ncam and its polysialylated derivative (psa-ncam). the following pharmacological tools were employed for manipulation of camp pathway: a) forskolin; the activator of ...

recognition of the molecular mechanisms of camp action against dna damage-induced apoptosis can be useful to improve the efficacy of dna damaging therapeutic agents. considering the critical role of bcl-2-associated death promoter (bad) and p53 proteins in dna damage -induced apoptosis, the aim of this study was to assess the effect of camp-elevating agents on these proteins in doxorubicin-trea...

introduction: to evaluate the camp -mediated ibmx (3-isobutyle -1-methyl xanthin) and db-camp (dibutyryl camp) effects on differentiation of human embryonic stem cells (hescs) into nerve cells were the objectives of this study. methods: we have used royan h1 hesc- derived embryoid bodies with four treatment groups: six days treatment with ibmx (5×10 -4m) and db-camp (10 -9m) (referred to as cam...

Elevated cAMP levels in B-cell precursor acute lymphoblastic leukemia (BCP-ALL) cells attenuate the doxorubicin-induced p53 accumulation and protect cells against apoptosis. cAMP responsive element binding protein (CREB) is a cAMP-stimulated transcription factor that regulates genes whose deregulated expression cooperatein oncogenesis. In the present study, we investigated the role of CREB on i...

Introduction: To evaluate the cAMP -mediated IBMX (3-IsoButyle -1-Methyl Xanthin) and db-cAMP (dibutyryl cAMP) effects on differentiation of human Embryonic Stem Cells (hESCs) into nerve cells were the objectives of this study. Methods: We have used Royan H1 hESC- derived embryoid bodies with four treatment groups: six days treatment with IBMX (5×10 -4M) and db-cAMP (10 -9M) (referred to as...

Recognition of the molecular mechanisms of cAMP action against DNA damage-induced apoptosis can be useful to improve the efficacy of DNA damaging therapeutic agents. Considering the critical role of bcl-2-associated death promoter (BAD) and p53 proteins in DNA damage -induced apoptosis, the aim of this study was to assess the effect of cAMP-elevating agents on these proteins in doxorubicin-trea...

The effects of cAMP-analogue dibutyryl-cAMP and anticalmodulin W-7 were studied on de novo synthesis and secretion of lipids in cultures of hepatoma McArdle RH7777 cells and normal rat hepatocytes. Dibutyryl-cAMP and W -7 separately caused a significant decrease in the secretion of de novo synthesized triacyl [3H]glycerol in both cultures of McArdle cells and rat hepatocytes. The inhibito...

The effects and interaction between cAMP-analogue dibutyryl-cAMP and calmodulin antagonists were investigated on de novo synthesis and secretion of lipids in cultures of hepatoma McArdle-RH7777 cells and normal rat hepatocytes. Dibutyryl cAMP caused a significant decrease in the secretion of de novo synthesized triacyl [3H] glycerol in both cultures of McArdle cells and rat hepatocytes. The ...

The effects and interaction between cAMP-analogue dibutyryl-cAMP and calmodulin antagonists were investigated on de novo synthesis and secretion of lipids in cultures of hepatoma McArdle-RH7777 cells and normal rat hepatocytes. Dibutyryl cAMP caused a significant decrease in the secretion of de novo synthesized triacyl [3H] glycerol in both cultures of McArdle cells and rat hepatocytes. The ...

the effects of camp-analogue dibutyryl-camp and anticalmodulin w-7 were studied on de novo synthesis and secretion of lipids in cultures of hepatoma mcardle rh7777 cells and normal rat hepatocytes. dibutyryl-camp and w -7 separately caused a significant decrease in the secretion of de novo synthesized triacyl [3h]glycerol in both cultures of mcardle cells and rat hepatocytes. the inhibitory eff...