Alternative pre-messenger RNA splicing is a crucial step in eukaryotic gene expression, and therefore it is subject to tight regulation. Given its importance in conferring protein diversity, alternative splicing is sensitive to changes in cellular states including malignancy. We present a new paradigm by which to quantitatively study the alternative splicing of any molecule through the presente...

BACKGROUND Prostate cancer (PC) consistently overexpresses variant the (v) isoform of the cell adhesion protein CD44, and loses expression of the standard (s) isoform. MATERIALS AND METHODS We re-expressed CD44 full-length (exons 1-20) or standard (exons 1-5 + 16-20) or enforced stable RNAi against CD44v, and the examined functional effects on PC. The effect of stable knockout of calcitonin, ...

Abstract The tumor microenvironment (TME), including the non-tumor cells and extracellular matrix (ECM) plays a crucial role in progression metastasis. Hyaluronic acid (HA), major glycosaminoglycan present brain ECM, has long been associated with invasiveness of tumors. HA signals primarily thorough CD44, an adhesion/homing receptor leading to induction cellular AKT, MEK HIF signaling, thereby ...

Background/Aim: We have tested whether the anticancer peptide, PNC-27, that kills cancer cells but not normal by binding to cell membrane HDM-2 forming pores, CD44+ colon stem cells. Materials and Methods: Flow cytometry determined CD44 expression on six-colon lines one line (CCD-18Co). MTT, LDH release, annexin V caspase 3 assays were used assess PNC-27-induced death. Bioluminescence imaging m...

CD44 is a transmembrane glycoprotein, the variant isoforms of which are coded for by alternative splicing, with the most prolific isoform being CD44 standard. CD44 is found in a wide variety of tissues including the central nervous system, lung, epidermis, liver, and pancreas, whereas variant isoforms of CD44 (CD44v) appear to have a much more restricted distribution. Variants of CD44 are expre...

Purpose of the study. Determine content cancer stem cells (CSCs) in tumor tissue (TT) and perifocal tissues (PT) muscle-non-invasive bladder cancer. Materials methods. We’ve examined fragments TT PT 7 (NMIBC) after surgical intervention – transurethral resection urinary (TUR). In samples that were used to obtain cell suspension using BD Medimachine apparatus (BD, USA) was treated with monoclona...

CD44 is a widely expressed integral membrane glycoprotein that serves as a specific adhesion receptor for the extracellular matrix glycosaminoglycan hyaluronan. CD44 participates in a variety of physiological and pathological processes through its role in cell adhesion. Under appropriate conditions, the ectodomain of CD44 is proteolytically removed from the cell surface. In this study we show t...