Connexin 43 expression is associated with increased malignancy in prostate cancer cell lines and functions to promote migration
نویسندگان
چکیده
Impaired expression of connexins, the gap junction subunits that facilitate direct cell-cell communication, have been implicated in prostate cancer growth. To elucidate the crucial role of connexins in prostate cancer progression, we performed a systematic quantitative RT-PCR screening of connexin expression in four representative prostate cancer cell lines across the spectrum of malignancy. Transcripts of several connexin subunits were detected in all four cell lines, and connexin 43 (Cx43) showed marked elevation at both RNA and protein levels in cells with increased metastatic potential. Analysis of gap-junction-mediated intercellular communication revealed homocellular coupling in PC-3 cells, which had the highest C x 43 expression, with minimal coupling in LNCaP cells where C x 43 expression was very low. Treatment with the gap junction inhibitor carbenoxolone or connexin mimetic peptide ACT-1 did not impair cell growth, suggesting that growth is independent of functional gap junctions. PC-3 cells with C x 43 expression reduced by shRNA showed decreased migration in monolayer wound healing assay, as well as decreased transwell invasion capacities when compared to control cells expressing non-targeting shRNA. These results, together with the correlation between C x 43 expression levels and the metastatic capacity of the cell lines, suggest a role of C x 43 in prostate cancer invasion and metastasis.
منابع مشابه
Therapeutic Efficacy Analysis of lncRNA NEAT1 Gene Knockout and Apoptosis Induction in Prostate Cancer Cell Line Using CRISPR/Cas9
Background and Objective: Long non-coding ribonucleic acid (lncRNA) has been identified as an important gene regulator and prognostic marker in various cancers. The present study aimed to investigate the effects of Nuclear Paraspeckle Assembly Transcript1 (NEAT1) gene knockout using Clustered Regularly Interspaced Short Palindromic Repeats-associated Protein 9 (CRISPR/Cas9) in PC-3 cell line. ...
متن کاملSynergistic Anticancer Effect of Paclitaxel and Noscapine on Human Prostate Cancer Cell Lines
Paclitaxel is the one of the most common chemotherapeutic drugs used for the treatment of prostate cancer. However, its current clinical utility has been limited due to numerous serious side effects and drug resistance. Noscapine is an antitussive opium alkaloid that showed antitumor activity against a variety of cancer while has not exhibited severe side effects. This study investigates the a...
متن کاملSynergistic Anticancer Effect of Paclitaxel and Noscapine on Human Prostate Cancer Cell Lines
Paclitaxel is the one of the most common chemotherapeutic drugs used for the treatment of prostate cancer. However, its current clinical utility has been limited due to numerous serious side effects and drug resistance. Noscapine is an antitussive opium alkaloid that showed antitumor activity against a variety of cancer while has not exhibited severe side effects. This study investigates the a...
متن کاملEffect of Exposure to Quran Recitation on Cell Viability, Cell Migration, and BCL2L12 Gene Expression of Human Prostate Adenocarcinoma Cell Line in Culture
Background and Objectives: Prostate cancer is the third most important cause of cancer deaths and one of the most common cancers in the world. Given the limited knowledge on environmental sounds and their effects, the important role of sounds is neglected in every culture across the world. The aim of this study was to investigate the impact of Quran recitation on prostate cancer cell line (PC-3...
متن کاملInvestigation of Histone Lysine-Specific Demethylase 5D (KDM5D) Isoform Expression in Prostate Cancer Cell Lines: a System Approach
Background: It is now well-demonstrated that histone demethylases play an important role in developmental controls, cell-fate decisions, and a variety of diseases such as cancer. Lysine-specific demethylase 5D (KDM5D) is a male-specific histone demethylase that specifically demethylates di- and tri-methyl H3K4 at the start site of active genes. In this light, the aim of this study was to invest...
متن کامل