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Assays for Validating Histone Acetyltransferase Inhibitors
Published on: August 6, 2020
Hsp Inhibitor is Affective Against Adenocarcinomic Human Alveolar Basal Epithelial Cells Through Modulating ERK/MAPK
Servet Tunoğlu1, Lütfi Tutar2, Mehmet Gümüş3
1Department of Molecular Medicine, Aziz Sancar Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey.
Abstract:
The extracellular signal-regulated kinase (ERK) - mitogen-activated protein kinase (MAPK) pathway regulates cell proliferation, differentiation, and apoptosis. Heat Shock Protein 90 (HSP90) is required to activate proto-oncogenic protein kinases and promotes tumor growth through anti-apoptotic effects on A549-non-small cell lung cancer (NSCLC). Therefore, deregulation of the ERK-MAPK pathway and abnormal expression of HSP90 are reasonably frequent events in NSCLC. In this study, novel perimidine-pyrazole compounds employed to block ERK-MAPK deregulation through inhibiting HSP dependent cancer cell survival mechanisms. A set of perimidine-pyrazole derivatives effects was monitored on NSCLC cell line. Array experiments performed to understand the effect of the compounds on signaling pathways and results were analyzed by gene enrichment analysis. Further, senescence and apoptosis experiments were performed to support the enrichment results along with in silico methods to determine perimidine-pyrazole/HSP interactions. Treatment of NSCLC cells with perimidine-pyrazole derivatives displayed cancer-inhibitory, pro-senescent and pro-apoptotic effects on NSCLC cells through ERK/MAPK pathway and these compounds are promising templates for designing anticancer drugs.
Insights
Novel perimidine-pyrazole compounds inhibit cancer cell survival by targeting the ERK-MAPK pathway and Heat Shock Protein 90 (HSP90). These compounds show promise as anticancer drugs for non-small cell lung cancer (NSCLC).
Area of Science:
- Oncology
- Molecular Biology
- Drug Discovery
Background:
- The extracellular signal-regulated kinase (ERK) - mitogen-activated protein kinase (MAPK) pathway is crucial for cell regulation.
- Heat Shock Protein 90 (HSP90) promotes tumor growth and survival in non-small cell lung cancer (NSCLC) by activating oncogenic kinases and inhibiting apoptosis.
- Deregulation of the ERK-MAPK pathway and abnormal HSP90 expression are common in NSCLC.
Purpose of the Study:
- To investigate novel perimidine-pyrazole compounds as inhibitors of ERK-MAPK pathway deregulation.
- To evaluate the effects of these compounds on HSP90-dependent cancer cell survival mechanisms in NSCLC.
- To explore the potential of these compounds as templates for developing new anticancer drugs.
Main Methods:
- Synthesis and testing of novel perimidine-pyrazole derivatives on an NSCLC cell line.
- Gene enrichment analysis of array experiments to understand pathway modulation.
- Senescence and apoptosis assays to confirm cellular effects.
- In silico methods to predict perimidine-pyrazole/HSP90 interactions.
Main Results:
- Perimidine-pyrazole derivatives demonstrated cancer-inhibitory effects on NSCLC cells.
- Compounds induced pro-senescence and pro-apoptotic effects.
- Inhibition of cancer cell survival was mediated through the ERK/MAPK pathway.
- In silico analysis supported interactions between compounds and HSP90.
Conclusions:
- Novel perimidine-pyrazole compounds effectively inhibit NSCLC cell growth.
- These compounds target cancer cell survival via the ERK/MAPK pathway and HSP90.
- Perimidine-pyrazole derivatives represent promising candidates for future anticancer drug development.
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