Comprehensive Analysis of the Relationship between Cuproptosis-Related Gene GCSH and Prognosis, Tumor Microenvironment Infiltration, and Therapy Response in Endometrial Cancer.
Mengya Zhao, Haihang Nie, Peishan Qiu, Yali Yu, Haizhou Wang, Fan Wang, Jun Fang, Qiu Zhao
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Abstract
Introduction: Cuproptosis is a novel form of cell death regulated by protein lipoylation and implicated in mitochondrial metabolism. However, further research is needed to explore the influence of the cuproptosis-related gene γ-glutamylcysteine synthetase (GCSH) on the prognosis of endometrial cancer (EC), the tumor immune microenvironment, and therapeutic response.
Methods: The differential expression of GCSH between EC and normal tissues was analyzed using multiple public databases. Additionally, cancer and adjacent tissues were prospectively collected from 17 EC patients, and immunohistochemical analysis was performed to further investigate GCSH expression differences. The relationship between GCSH and the prognosis and clinicopathological characteristics of EC patients was evaluated, and a nomogram was constructed to predict patient survival based on GCSH expression. Subsequently, Gene set variation analysis was used to explore the potential biological functions of GCSH in EC. The impact of GCSH on the tumor microenvironment (TME) was estimated. Finally, the effect of GCSH on the response to immunotherapy and chemotherapeutic drugs in EC was investigated.
Results: The expression of GCSH was significantly upregulated in EC. High GCSH expression was associated with poor prognosis in EC patients. Enrichment analysis revealed an association between high GCSH and immune suppression. Furthermore, high GCSH was found to be associated with a non-inflamed TME, leading to decreased infiltration levels of immune cells. Lastly, it was observed that patients with high GCSH exhibited insensitivity to both immunotherapy and chemotherapeutic drugs.
Conclusion: This study revealed the role of GCSH in TME, response to therapy, and clinical prognosis in EC, which provided novel insights for the therapeutic application in EC.
期刊介绍：
Although laboratory and clinical cancer research need to be closely linked, observations at the basic level often remain removed from medical applications. This journal works to accelerate the translation of experimental results into the clinic, and back again into the laboratory for further investigation. The fundamental purpose of this effort is to advance clinically-relevant knowledge of cancer, and improve the outcome of prevention, diagnosis and treatment of malignant disease. The journal publishes significant clinical studies from cancer programs around the world, along with important translational laboratory findings, mini-reviews (invited and submitted) and in-depth discussions of evolving and controversial topics in the oncology arena. A unique feature of the journal is a new section which focuses on rapid peer-review and subsequent publication of short reports of phase 1 and phase 2 clinical cancer trials, with a goal of insuring that high-quality clinical cancer research quickly enters the public domain, regardless of the trial’s ultimate conclusions regarding efficacy or toxicity.
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