BACKGROUND Colon cancer is the third most common cancer in the world, and its metastasis and drug resistance are challenging for its effective treatment. The PI3K/Akt/mTOR pathway plays a crucial role in the pathogenesis of colon cancer. The aim of this study was to investigate the targeting of PI3K in colon cancer cells HT-29 and HCT-116 in vitro. METHODS In HT-29 and HCT-116 cells, BEZ235, ...

Phosphodiesterase is an enzyme that degrades the phosphodiester bond in second messenger molecules cAMP and cGMP, regulates localization, duration, amplitude of cyclic nucleotide signaling within subcellular domains. Sildenafil a potent selective inhibitor type 5 cGMP-specific phosphodiesterase used clinically to treat erectile dysfunction pulmonary arterial hypertension. In this study, we exam...

To investigate whether Portulaca oleracea extract affects tumor formation in colon cancer stem cells and its chemotherapy sensitivity. In addition, to analyze associated genetic changes within the Notch signal transduction pathway. Serum-free cultures of colon cancer cells (HT-29) and HT-29 cancer stem cells were treated with the chemotherapeutic drug 5-fluorouracil to assess sensitivity. Injec...

Human arylamine N-acetyltransferase 1 (NAT1) has been associated with cancer cell growth and invasion, but the underlying molecular mechanisms remain unknown. NAT1 is located on the short arm of chromosome 8 (8p21), a region that is commonly deleted in colon cancer. Previously, it was reported that HT-29 colon cancer cells, which have a large deletion at 8p21-22, show marked morphological chang...

primula auriculata (tootia) is one of the most important local medicinal plants in hamedan district, iran. to investigate cytotoxicity and apoptosis induction of crude methanolic extract and different fraction of it we compared several methods on ht-29 human colon adenocarcinoma cells. cancer cell proliferation was measured by 3-(4, 5‑dimethylthiazolyl)-2, 5‑diphenyl‑tetrazolium bromide (mtt) a...

Anti-helmintic drugs mebendazole and albendazole are commonly used to treat a variety of parasitic infections. They have recently shown some promising results in pre-clinical vitro vivo anti-cancer studies. We compare their efficacy breast colon cancer cell lines as well non-cancerous cells elucidate mechanism action. The were screened for cytotoxicity MDA-MB-231, MCF-7 (breast cancer), HT-29 (...

Luteolin is 3',4',5,7-tetrahydroxyflavone found in celery, green pepper, and perilla leaf that inhibits tumorigenesis in animal models. We examined luteolin-mediated regulation of cell cycle progression and apoptosis in the HT-29 human colon cancer cell line. Luteolin decreased DNA synthesis and viable HT-29 cell numbers in a concentration-dependent manner. It inhibited cyclin-dependent kinase ...

We compared the response of normal (FHC) and cancer (HT-29) human colon epithelial cells to the important apoptotic inducers TNF-alpha, anti-Fas antibody and TNF-related apoptosis inducing ligand (TRAIL). The two cell lines did not respond to TNF-alpha (15 ng/ml), expressed a limited sensitivity to anti-Fas antibody (200 ng/ml) and a different response to TRAIL (100 ng/ml). We studied apoptosis...