Evidence map›Paper›PMID 42455377›Full record

ArticleMolecular biology reports2026

Epigallocatechin gallate enhances panobinostat-induced cytotoxicity through HDAC modulation in colorectal cancer cells.

Mai Kamal Khader, Manal A Abbas, Aya Y Al-Kabariti

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Article in Molecular biology reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

3 authors.

Mai Kamal KhaderDepartment of Medical Laboratory Sciences, Faculty of Allied Medical Sciences, Al-Ahliyya Amman University, 19111, Amman, Jordan.
Manal A AbbasDepartment of Medical Laboratory Sciences, Faculty of Allied Medical Sciences, Al-Ahliyya Amman University, 19111, Amman, Jordan. m.abbas@ammanu.edu.jo.ORCID https://orcid.org/0000-0002-8962-1879
Aya Y Al-KabaritiPharmacological and Diagnostic Research Center, Al-Ahliyya Amman University, Amman, 19111, Jordan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeColorectal cancer (CRC) is a major cause of cancer-related death due to recurrence and therapeutic resistance. This study evaluates whether combining panobinostat, a histone deacetylase (HDAC) inhibitor, with epigallocatechin gallate (EGCG), a green tea-derived polyphenol, enhances anti-tumor activity through modulation of HDAC expression in CRC cell lines.

methodsCytotoxicity and migration were assessed in HCT-116 and HT-29 cells. Combination studies were performed using sub-cytotoxic concentrations (less than IC₂₅), and HDAC1, HDAC2, and HDAC4 expression levels were quantified by qPCR.

resultsThe combination of panobinostat and EGCG produced synergistic cytotoxic effects at low, sub-cytotoxic doses. Compared with single-agent treatment, co-treatment enhanced the cytotoxic activity of panobinostat. In HT-29 cells, EGCG inhibited migration, while 5 nM panobinostat alone showed minimal effect. Higher panobinostat doses (10 nM) and certain combination treatments significantly reduced migration. In HCT-116 cells, migration responses were limited, although selected combinations produced significant inhibition at 72 h. Mechanistically, EGCG downregulated HDAC1 in HT-29 cells and HDAC2 and HDAC4 in HCT-116 cells. In contrast, panobinostat and combination treatments upregulated HDAC expression, suggesting compensatory transcriptional feedback in response to HDAC inhibition.

conclusionPanobinostat combined with EGCG exerts synergistic cytotoxic effects in CRC, accompanied by time-and cell line-specific inhibition of cell migration and modulation of HDAC expression.

Indexed as

CatechinColorectal NeoplasmsHistone Deacetylase InhibitorsHistone DeacetylasesPanobinostatCell Line, TumorCell MovementCell SurvivalDrug SynergismGene Expression Regulation, NeoplasticHCT116 CellsHistone Deacetylase 1Histone Deacetylase 2HT29 CellsHumansHydroxamic AcidsCatechinepigallocatechin gallateHDAC1 protein, humanHDAC2 protein, humanHDAC4 protein, humanHistone Deacetylase 1Histone Deacetylase 2Histone Deacetylase InhibitorsHistone DeacetylasesHydroxamic AcidsIndolesPanobinostatRepressor ProteinsColorectal cancerCombination therapyCytotoxicityEpigallocatechin gallateHistone deacetylasePanobinostatSynergistic effect

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.