The goal of this study was to determine whether beta(1)-adrenergic receptor (AR) and beta(2)-AR differ in regulating cardiomyocyte survival and apoptosis and, if so, to explore underlying mechanisms. One potential mechanism is that cardiac beta(2)-AR can activate both G(s) and G(i) proteins, whereas cardiac beta(1)-AR couples only to G(s). To avoid complicated crosstalk between beta-AR subtypes...

AIM: To find novel proteins that may bind to α1A-adrenergic receptor (α1A-AR) and investigate their interactions with the other two α1-AR subtypes (α1B-AR and α1D-AR) with an expectation to provide new leads for the function study of the receptors. METHODS: Yeast two-hybrid assay was performed to screen a human brain cDNA library using the C terminus of α1A-AR (α1A-AR-CT) as bait. X-Gal assay a...

Stem cells are thought to be the cell of origin in malignant transformation in many tissues, but their role in human prostate carcinogenesis continues to be debated. One of the conflicts with this model is that cancer stem cells have been described to lack androgen receptor (AR) expression, which is of established importance in prostate cancer initiation and progression. We re-examined the expr...

Meningiomas constitute about 34% of primary intracranial tumors and are associated with increased mortality in patients with neurofibromatosis type 2 (NF2). To evaluate potential medical therapies for these tumors, we have established a quantifiable orthotopic model for NF2-deficient meningiomas. We showed that telomerase-immortalized Ben-Men-1 benign meningioma cells harbored a single nucleoti...

Resensitization of G protein-coupled receptors (GPCR) following prolonged agonist exposure is critical for restoring the responsiveness of the receptor to subsequent challenges by agonist. The 3'-5' cyclic AMP-dependent protein kinase (PKA) and serine 312 in the third intracellular loop of the human beta(1)-adrenergic receptor (beta(1)-AR) were both necessary for efficient recycling and resensi...

Abstract We discuss the estimation of a change-point $$t_0$$ t 0 at which parameter (non-stationary) AR(1)-process possibly changes in gradual way. Making use observations $$X_1,\ldots ,X_n$$ X 1 , …<...

background: breast cancer is the most common cause of cancer in women. this tumor is hormone dependent tumor and oncologists use estrogen receptor (er), progesterone receptor (pr) and her2 for treatment of this malignancy. androgens like testosterone and their receptors (ar) have a role in the pathophysiology of breast cancer but their clinical values are not clear. method: ar expression was ev...

The androgen receptor (AR) gene is transcriptionally regulated by AR (autoregulation); however, the androgen response elements (AREs) required for this process have not been found in the AR promoter or in the 5'-flanking region. We previously showed that the AR cDNA contains AREs involved in AR mRNA autoregulation and that auto(up)regulation is reproduced in PC3 cells (a human prostate cancer c...

Sarda et al. (1) show that there is a correlation between Pb/Pb and maximum Ar/ Ar values in Atlantic basalts. The authors argue that this correlation is due to mixing between a degassed-depleted upper mantle (Ar/Ar . 40,000 and Pb/Pb ' 17.8) and a recycled component in the mantle (HIMU) that has unradiogenic Ar resulting from recycling of atmospheric Ar (Ar/ Ar 5 300). However, devolatilizatio...