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The Up-Regulated Expression of Mitochondrial Membrane Molecule RHOT1 in Gastric Cancer Predicts the Prognosis of Patients and Promotes the Malignant Biological Behavior of Cells

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Abstract

Gastric cancer (GC) remains a major disease of high morbidity and mortality worldwide despite advances in diagnosis and treatment. Ras homolog family member T1 (RHOT1) plays an important role in several cancers. Our study aimed to analyze RHOT1 expression, to assess the relationship between its expression and the prognosis of patients, and know the impact of RHOT1 on GC cells. The Cancer Genome Atlas (TCGA) RNA-seq data was used for gene expression analysis, survival and prognostic analysis. Nomograms were created to analyze the pathological factors of GC patients. RHOT1 expression was up-regulated by analyzed TCGA-Stomach adenocarcinoma (STAD) data and verified by Polymerase Chain Reaction (PCR) assay in GC tissues and cell lines. Furthermore, RHOT1 up-regulation was significantly associated with shorter survival of GC patients. At last, after silencing the expression of RHOT1 in AGS cell lines, we found that the proliferative ability of the cells was significantly reduced, the cell invasion ability was significantly inhibited, the cell migration ability was also significantly weakened, the cell cycle was arrested in the G0/G1 phase, and apoptosis was significantly increased. So RHOT1 could impact the apoptosis, proliferation, invasion, and migration behavior of GC cells. We trust RHOT1 has the potential to become a new oncogene biomarker for diagnosis and prognosis as well as a new therapeutic target in GC.

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Data availability

The original data in the manuscript were downloaded from the official websites of TCGA (https://portal.gdc.cancer.gov/) and GTEx (https://gtexportal.org/home/). TCGA and GTEx RNA-seq data in TPM format were obtained from UCSC XENA (https://xenabrowser.net/datapages/). Thanks to **antao Academic (www.xiantao.love) for providing the R language analysis platform.

Abbreviations

ACC:

Adrenocortical carcinoma

BLCA:

Bladder urothelial carcinoma

BRCA:

Breast invasive carcinoma

CESC:

Cervical squamous cell carcinoma and endocervical adenocarcinoma

CHOL:

Cholangiocarcinoma

COAD:

Colon adenocarcinoma

DLBC:

Lymphoid neoplasm diffuse large B-cell lymphoma

ESCA:

Esophageal carcinoma

GBM:

Glioblastoma multiforme

HNSC:

Head and neck squamous carcinoma

KICH:

Kidney chromophobe

KIRC:

Kidney renal clear cell carcinoma

KIRP:

Kidney renal papillary cell carcinoma

LAML:

Acute myeloid leukemia

LGG:

Lower grade glioma

LIHC:

Liver cancer

LUAD:

Lung adenocarcinoma

LUSC:

Lung squamous cell carcinoma

MESO:

Mesothelioma

OV:

Ovarian cancer

PAAD:

Pancreatic cancer

PCPG:

Pheochromocytoma & paraganglioma

PRAD:

Prostate cancer

READ:

Rectal cancer

SARC:

Sarcoma

SKCM:

Melanoma

STAD:

Stomach cancer

TGCT:

Testicular cancer

THCA:

Thyroid cancer

THYM:

Thymoma

UCEC:

Endometrioid cancer

UCS:

Uterine carcinosarcoma

UVM:

Ocular melanomas

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Funding

This study was supported by the Doctoral Start-up Foundation of Liaoning Province, China (2022-BS-340); and the Supporting Project for Undergraduate Research project of Shenyang Medical College, China (20229010).

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Correspondence to Yanyu Peng.

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The authors have no competing interests to declare that are relevant to the content of this article.

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This is an observational study. The Shenyang Medical College Research Ethics Committee has confirmed that no ethical approval is required.

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Kong, F., Yang, S., Shi, R. et al. The Up-Regulated Expression of Mitochondrial Membrane Molecule RHOT1 in Gastric Cancer Predicts the Prognosis of Patients and Promotes the Malignant Biological Behavior of Cells. Mol Biotechnol (2024). https://doi.org/10.1007/s12033-024-01107-8

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