Evidence map›Paper›PMID 34966451›Full record

ArticleOncology letters2022

Correlation between promoter methylation of the LDH-C4 gene and DNMT expression in breast cancer and their prognostic significance.

Jiandong Zhang, Fengxia Zhang, Fengqin Zhang, Hua Wu, Bei Zhang, Xiangyun Wu

Open access · diamondAbstract read
In one paragraph

Article in Oncology letters, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.6field-weighted citation impact, top 35% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 10 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. The Mechanism of DNA Methylation and miRNA in Breast Cancer.International journal of molecular sciences · 2023
    Review
  6. Review
  7. Article
  8. Review
  9. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 1 country.

Jiandong ZhangClinical Laboratory, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China.
Fengxia ZhangNursing Department, Hengshui Health School, Hengshui, Hebei 050000, P.R. China.
Fengqin ZhangPathology Department, Hengshui People's Hospital of Hebei Medical University, Hengshui, Hebei 050000, P.R. China.
Hua WuClinical Laboratory, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China.
Bei ZhangClinical Laboratory, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China.
Xiangyun WuClinical Laboratory, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China.
Hebei Medical University · CNHengshui University · CNThird Hospital of Hebei Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

DNA methylation plays an important role in tumorigenesis and development. The potential of aberrant DNA methylation to act as a biomarker for tumor diagnosis and prognostic evaluation is currently being explored. Lactate dehydrogenase C4 (LDH-C4) is a member of the cancer/testis antigen family that is expressed in a broad range of human tumor types, with particularly high expression patterns observed in lung cancer, melanoma and breast cancer. However, whether the methylation of the promoter region of LDH-C4 can be used as a tumor marker and its association with prognosis remain poorly understood. The present study aimed to determine the potential of the methylation status of LDH-C4 and DNA methyltransferase (DNMT) expression to be biological markers for the prognostic evaluation of breast cancer. Methylation-specific PCR was conducted to evaluate alterations in the methylation levels of LDH-C4. Immunohistochemical analysis was performed to assess the expression levels of DNMTs in breast cancer tissues. The association between the methylation status of LDH-C4 or the expression of DNMTs, and clinical pathological parameters was also evaluated. The results of the present study revealed that the demethylation rate of LDH-C4 in breast cancer tissues was significantly increased compared with that of adjacent tissues, and associations were identified between the demethylation of LDH-C4 and the histological grade, estrogen receptor, progesterone receptor and HER-2 status, and lymph node metastasis. The level of LDH-C4 demethylation was negatively correlated with the expression of DNMTs. Demethylation of the LDH-C4 promoter and DNMT expression predicted an unfavorable prognosis of patients with breast cancer. In addition, demethylation of the LDH-C4 promoter, high expression of DNMT3a and DNMT3b, histological grade and lymph node metastasis were all discovered to be independent prognostic factors in patients with breast cancer. In conclusion, results of the present study indicated that the demethylation of LDH-C4 and DNMT expression levels may be closely associated with the occurrence and development of breast cancer, in addition to lymph node metastasis. Thus, both may be used to assist the clinical evaluation of prognosis.

Indexed as

DNA methyltransferasesexpressionlactate dehydrogenase C4methylationprognosis

Identifiers

PMID34966451
PMCPMC8669647
OpenAlexW3215915745

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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 OpenQuestion graph.