Fraidoon Kavoosi
Research center for non-communicable diseases, Jahrom University of medical sciences, Jahrom, Iran
[ 1 ] - Comparative Analysis of the Effects of Valproic Acid and Tamoxifen on Proliferation, and Apoptosis of Human Hepatocellular Carcinoma WCH 17 CellLin
Background: Histone deacetylation of tumor suppressor genes such as estrogen receptor alpha (ERα) can induce cancer, which is reversible by epi-drugs such as valproic acid (VPA). The previous result indicated that tamoxifen (TAM) induced apoptosis in hepatocellular carcinoma (HCC). This study was designed to assess the apoptotic and antiproliferative effects of VPA and TAM and also the ef...
[ 2 ] - Effect of Curcumin and Trichostatin A on the Expression of DNA Methyltransfrase 1 in Hepatocellular Carcinoma Cell Line Hepa 1-6
Background: Hepatocellular carcinoma (HCC), primary liver cancer, is a major health problem and the third most common cause of cancer-related deaths worldwide. Epigenetic modulations are essential for the maintenance of gene expression patterns in mammals. Disruption of these processes can lead to silenced gene and malignant cellular transformation. The current study was designed to compare the...
[ 3 ] - Effects of 5-aza-2ˈ-deoxycytidine and Valproic Acid on Epigenetic-modifying DNMT1 Gene Expression, Apoptosis Induction and Cell Viability in Hepatocellular Carcinoma WCH-17 cell line
Background: DNA molecule of the eukaryotic cells is found in the form of a nucleoprotein complex named chromatin. Two epigenetic modifications are critical for transcriptional control of genes, including acetylation and DNA methylation. Hypermethylation of tumor suppressor genes is catalyzed by various DNA methyltransferase enzymes (DNMTs), including DNMT1, DNMT2, and DNMT3. The most well chara...
[ 4 ] - Effect of trichostatin A on histone deacetylase 1 (HDAC 1) and CIP/KIP (p21CIP1/WAF1, p27KIP1, and p57KIP2) gene expression, cell growth inhibition and apoptosis induction in lung cancer COR-L105 cell line. Abstract
Effect of trichostatin A on histone deacetylase 1 (HDAC 1) and CIP/KIP (p21CIP1/WAF1, p27KIP1, and p57KIP2) gene expression, cell growth inhibition and apoptosis induction in lung cancer COR-L105 cell line. Abstract Background: Lung cancer is one the leading cause of cancer-related death worldwide, with more than 1.2 million deaths each year. In addition to genetic mutations, epigenetic modif...
[ 5 ] - Effect of 5- azacytidine (5-aza-CR on the expression of DNMT1, DNMT3A, DNMT3B, p14ARF, p16INK4a, and p15INK4b, cell growth inhibition and apoptosis induction lung cancer A549 cell line
Background and aim: Lung cancer is one of the most leading causes of cancer death in males and females and the second leading cause of cancer death. Epigenetic alterations, including DNA hypermethylation, histone deacetylation, and miRNAs lead to the silencing of tumor suppressor genes (TSGs) resulting in tumorigenesis. This change has been reported in various cancers. The activity of DNA meth...
[ 6 ] - DNA methylation of tumor suppressor genes in hepatocellular carcinoma
The basic unit of chromatin is a nucleosome included an octamer of the four core histones and 147 base pairs of DNA. Posttranslational histones modifications affect chromatin structure resulting in gene expression changes. CpG islands hypermethylation within the gene promoter regions and the deacetylation of histone proteins are the most common epigenetic modifications. The aberrant patterns of...
[ 7 ] - Effect of valproic acid on JAK/STAT pathway, SOCS1, SOCS3, Bcl-xL, c-Myc, and Mcl-1 gene expression, cell growth inhibition and apoptosis induction in human colon cancer HT29 cell line.
Background and aim: Cytokines are a large family of protein messengers. These proteins induce various cellular responses. Janus kinases (JAKs) are mediators of cytokine, activated JAKs phosphorylate signal transducers, and activators of transcription (STAT) proteins that regulate cell differentiation, proliferation, and apoptosis. Aberrant JAK/STAT signaling is involved in the oncogenesis of se...
[ 8 ] - Effect of valproic acid on SOCS1, SOCS3, JAK1, JAK2, STAT3, STAT5A, and SOCS5B in hepatocellular carcinoma HepG2 cell line
Background and aim: Aberrant activation of diverse intracellular signaling pathways involved in differentiation, cell growth, apoptosis. These pathways include known oncogenic pathways such as Janus kinase-signal transducer and activator of transcription (JAK/STAT) pathway. The JAK/STAT signaling pathway plays an important role in many cellular functions. This pathway can be activated by variou...
[ 9 ] - Effects of Trichostatin A on the Histone Deacetylases (HDACs), Intrinsic Apoptotic Pathway, p21/Waf1/Cip1, and p53 in Human Neuroblastoma, Glioblastoma, Hepatocellular Carcinoma, and Colon Cancer Cell Lines
Background: The aberrant and altered patterns of gene expression play an important role in the biology of cancer and tumorigenesis. DNA methylation and histone deacetylation are the most studied epigenetic mechanisms. Histone deacetylase inhibitors (HDACIs) such as valproic acid (VPA) and trichostatin A (TSA) are a group of anticancer compounds for the treatment of solid and hematological canc...
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