» Articles » PMID: 39323992

The Potential of Retinoic Acid Receptors As Prognostic Biomarkers and Therapeutic Targets in Gastric Cancer

Overview
Journal Front Oncol
Specialty Oncology
Date 2024 Sep 26
PMID 39323992
Authors
Affiliations
Soon will be listed here.
Abstract

Background: Gastric cancer is a heterogeneous collection of tumors characterized by low survival rates. All-trans retinoic acid (retinoic-acid) is a clinically useful therapeutic agent belonging to the chemical family of retinoids, which consists of both natural and synthetic derivatives of vitamin-A. Retinoids are essential components of the normal diet and they regulate different physiological processes. From a therapeutic point of view, retinoic-acid is the first example of clinically useful differentiating agent. Indeed, the differentiating properties of this compound have promoted the use of retinoic-acid as a standard of care in Acute-Promyelocytic-Leukemia, a rare form of acute myeloid leukemia. In this study, we determine the RNA expression of the six isoforms of -- (/////) in view of their potential use as gastric cancer progression markers and/or therapeutic targets. In addition, we evaluate associations between the expression of these receptors and a simplified molecular classification of stomach tumors as well as the clinical characteristics of the cohort of patients analyzed. Finally, we define the prognostic value of the various -- in gastric cancer.

Methods: In this single institution and retrospective study, we consider 55 consecutive gastric cancer patients. We extract total RNA from the pathological specimens and we perform a using a customized panel of genes. This allows us to determine the expression levels of the and mRNAs as well as other transcripts of interest.

Results: Our data demonstrate ubiquitous expression of the and mRNAs in gastric cancers. High levels of , , and show a significant association with stage IV tumors, "" metastatic disease, microsatellite-stable-status, epithelial-to-mesenchymal-transition, as well as and expression. Finally, we observe a worse - in gastric cancer patients characterized by high /// mRNA levels.

Conclusions: In gastric cancer, high expression levels of /// transcripts are associated with poor clinical and molecular characteristics as well as with reduced -. Our data are consistent with the idea that , , and represent potential prognostic markers and therapeutic targets of gastric cancer.

References
1.
Bang Y, Van Cutsem E, Feyereislova A, Chung H, Shen L, Sawaki A . Trastuzumab in combination with chemotherapy versus chemotherapy alone for treatment of HER2-positive advanced gastric or gastro-oesophageal junction cancer (ToGA): a phase 3, open-label, randomised controlled trial. Lancet. 2010; 376(9742):687-97. DOI: 10.1016/S0140-6736(10)61121-X. View

2.
Lo-Coco F, Hasan S, Montesinos P, Sanz M . Biology and management of therapy-related acute promyelocytic leukemia. Curr Opin Oncol. 2013; 25(6):695-700. DOI: 10.1097/CCO.0000000000000013. View

3.
Zhang R, Banik N, Ray S . Combination of all-trans retinoic acid and interferon-gamma upregulated p27(kip1) and down regulated CDK2 to cause cell cycle arrest leading to differentiation and apoptosis in human glioblastoma LN18 (PTEN-proficient) and U87MG (PTEN-deficient).... Cancer Chemother Pharmacol. 2007; 62(3):407-16. DOI: 10.1007/s00280-007-0619-0. View

4.
Bolis M, Paroni G, Fratelli M, Vallerga A, Guarrera L, Zanetti A . All-Trans Retinoic Acid Stimulates Viral Mimicry, Interferon Responses and Antigen Presentation in Breast-Cancer Cells. Cancers (Basel). 2020; 12(5). PMC: 7281473. DOI: 10.3390/cancers12051169. View

5.
Jin J, Li X, Xing L, Chang Y, Wu L, Jin Z . Addition of all-trans-retinoic acid to omeprazole and sucralfate therapy improves the prognosis of gastric dysplasia. J Int Med Res. 2015; 43(2):204-16. DOI: 10.1177/0300060514559791. View