Evidence map›Paper›PMID 39083093›Full record

ArticleMolecular biology reports2024

TET3 downregulation and low 5-hydroxymethylcytosine are epigenetic signatures of head and neck carcinoma.

Jyoti Kanwar Shekhawat, Jyoti Sharma, Bikram Choudhury, Purvi Purohit, Praveen Sharma, Mithu Banerjee

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Article in Molecular biology reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

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2citing papers in PubMed
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1 · What the graph read from it

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3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Head and neck squamous cell carcinoma: current and emerging therapeutic strategies.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026
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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Jyoti Kanwar ShekhawatDepartment of Biochemistry, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India.
Jyoti SharmaDepartment of Biochemistry, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India.
Bikram ChoudhuryDepartment of Otorhinolaryngology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India.
Purvi PurohitDepartment of Biochemistry, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India.
Praveen SharmaDepartment of Biochemistry, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India.
Mithu BanerjeeDepartment of Biochemistry, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India. mithu.banerjee.3@gmail.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTen-eleven translocases (TETs) are enzymes responsible for demethylation processes, playing a crucial role in maintaining the body's methylation balance. Dysregulation of TET expression can lead to abnormal methylation levels. Isocitrate dehydrogenases (IDH) are upstream genes involved in Kreb cycle responsible for production of α-ketoglutarate (α-KG). α-KG and vitamin C are cofactors of TET3 enzyme. There is limited data on the relationship between TET3 and its cofactor Vitamin C in head and neck carcinoma (H&NC). METHODS AND

resultsIn this study, we have investigated the expression of the TET3 gene along with IDH1/2 genes involved in the Krebs cycle in the peripheral blood of 32 H&NC patients compared to 32 healthy controls. We estimated serum levels of TET3 protein and vitamin C and 5-hydroxymethylcytosine (5-hmC) percentage in DNA isolated from EDTA blood samples. Our findings revealed that TET3 and IDH1/2 were downregulated in H&NC patients compared to healthy controls. Serum levels of TET3 and Vitamin C were low in H&NC patients compared to healthy controls. Diminished levels of percentage 5-hmC were detected in EDTA blood samples of H&NC patients compared to controls. Spearman correlation analysis revealed a significant positive correlation between TET3 levels, vitamin C levels and 5-hmC percentage.

conclusionThe low levels of Vitamin C are believed to contribute to decreased activity of the TET3 gene and less conversion of 5-methylcytosine (5-mC) to 5-hmC. Dietary supplementation of Vitamin C may increase TET3 activity.

Indexed as

5-MethylcytosineAscorbic AcidDioxygenasesDNA MethylationEpigenesis, GeneticHead and Neck NeoplasmsIsocitrate DehydrogenaseAdultAgedCase-Control StudiesDown-RegulationFemaleGene Expression Regulation, NeoplasticHumansMaleMiddle Aged5-hydroxymethylcytosine5-MethylcytosineAscorbic AcidDioxygenasesIDH1 protein, humanIDH2 protein, humanIsocitrate DehydrogenaseProto-Oncogene ProteinsTET3 protein, human5-hmCBloodHead and Neck CarcinomaIDH1/2TET3Vitamin Cα-KG

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